Mercurial > hg > nginx
annotate src/http/modules/ngx_http_grpc_module.c @ 8033:2bf7792c262e
Upstream: header handlers can now return parsing errors.
With this change, duplicate Content-Length and Transfer-Encoding headers
are now rejected. Further, responses with invalid Content-Length or
Transfer-Encoding headers are now rejected, as well as responses with both
Content-Length and Transfer-Encoding.
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Mon, 30 May 2022 21:25:48 +0300 |
parents | 336084ff943b |
children | c7e25324be11 |
rev | line source |
---|---|
7233 | 1 |
2 /* | |
3 * Copyright (C) Maxim Dounin | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_http.h> | |
11 | |
12 | |
13 typedef struct { | |
14 ngx_array_t *flushes; | |
15 ngx_array_t *lengths; | |
16 ngx_array_t *values; | |
17 ngx_hash_t hash; | |
18 } ngx_http_grpc_headers_t; | |
19 | |
20 | |
21 typedef struct { | |
22 ngx_http_upstream_conf_t upstream; | |
23 | |
24 ngx_http_grpc_headers_t headers; | |
25 ngx_array_t *headers_source; | |
26 | |
27 ngx_str_t host; | |
28 ngx_uint_t host_set; | |
29 | |
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30 ngx_array_t *grpc_lengths; |
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31 ngx_array_t *grpc_values; |
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32 |
7233 | 33 #if (NGX_HTTP_SSL) |
34 ngx_uint_t ssl; | |
35 ngx_uint_t ssl_protocols; | |
36 ngx_str_t ssl_ciphers; | |
37 ngx_uint_t ssl_verify_depth; | |
38 ngx_str_t ssl_trusted_certificate; | |
39 ngx_str_t ssl_crl; | |
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40 ngx_array_t *ssl_conf_commands; |
7233 | 41 #endif |
42 } ngx_http_grpc_loc_conf_t; | |
43 | |
44 | |
45 typedef enum { | |
46 ngx_http_grpc_st_start = 0, | |
47 ngx_http_grpc_st_length_2, | |
48 ngx_http_grpc_st_length_3, | |
49 ngx_http_grpc_st_type, | |
50 ngx_http_grpc_st_flags, | |
51 ngx_http_grpc_st_stream_id, | |
52 ngx_http_grpc_st_stream_id_2, | |
53 ngx_http_grpc_st_stream_id_3, | |
54 ngx_http_grpc_st_stream_id_4, | |
55 ngx_http_grpc_st_payload, | |
56 ngx_http_grpc_st_padding | |
57 } ngx_http_grpc_state_e; | |
58 | |
59 | |
60 typedef struct { | |
61 size_t init_window; | |
62 size_t send_window; | |
63 size_t recv_window; | |
64 ngx_uint_t last_stream_id; | |
65 } ngx_http_grpc_conn_t; | |
66 | |
67 | |
68 typedef struct { | |
69 ngx_http_grpc_state_e state; | |
70 ngx_uint_t frame_state; | |
71 ngx_uint_t fragment_state; | |
72 | |
73 ngx_chain_t *in; | |
74 ngx_chain_t *out; | |
75 ngx_chain_t *free; | |
76 ngx_chain_t *busy; | |
77 | |
78 ngx_http_grpc_conn_t *connection; | |
79 | |
80 ngx_uint_t id; | |
81 | |
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82 ngx_uint_t pings; |
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83 ngx_uint_t settings; |
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84 |
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85 off_t length; |
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86 |
7233 | 87 ssize_t send_window; |
88 size_t recv_window; | |
89 | |
90 size_t rest; | |
91 ngx_uint_t stream_id; | |
92 u_char type; | |
93 u_char flags; | |
94 u_char padding; | |
95 | |
96 ngx_uint_t error; | |
97 ngx_uint_t window_update; | |
98 | |
99 ngx_uint_t setting_id; | |
100 ngx_uint_t setting_value; | |
101 | |
102 u_char ping_data[8]; | |
103 | |
104 ngx_uint_t index; | |
105 ngx_str_t name; | |
106 ngx_str_t value; | |
107 | |
108 u_char *field_end; | |
109 size_t field_length; | |
110 size_t field_rest; | |
111 u_char field_state; | |
112 | |
113 unsigned literal:1; | |
114 unsigned field_huffman:1; | |
115 | |
116 unsigned header_sent:1; | |
117 unsigned output_closed:1; | |
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118 unsigned output_blocked:1; |
7233 | 119 unsigned parsing_headers:1; |
120 unsigned end_stream:1; | |
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121 unsigned done:1; |
7233 | 122 unsigned status:1; |
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123 unsigned rst:1; |
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124 unsigned goaway:1; |
7233 | 125 |
126 ngx_http_request_t *request; | |
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127 |
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128 ngx_str_t host; |
7233 | 129 } ngx_http_grpc_ctx_t; |
130 | |
131 | |
132 typedef struct { | |
133 u_char length_0; | |
134 u_char length_1; | |
135 u_char length_2; | |
136 u_char type; | |
137 u_char flags; | |
138 u_char stream_id_0; | |
139 u_char stream_id_1; | |
140 u_char stream_id_2; | |
141 u_char stream_id_3; | |
142 } ngx_http_grpc_frame_t; | |
143 | |
144 | |
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145 static ngx_int_t ngx_http_grpc_eval(ngx_http_request_t *r, |
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146 ngx_http_grpc_ctx_t *ctx, ngx_http_grpc_loc_conf_t *glcf); |
7233 | 147 static ngx_int_t ngx_http_grpc_create_request(ngx_http_request_t *r); |
148 static ngx_int_t ngx_http_grpc_reinit_request(ngx_http_request_t *r); | |
149 static ngx_int_t ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in); | |
150 static ngx_int_t ngx_http_grpc_process_header(ngx_http_request_t *r); | |
151 static ngx_int_t ngx_http_grpc_filter_init(void *data); | |
152 static ngx_int_t ngx_http_grpc_filter(void *data, ssize_t bytes); | |
153 | |
154 static ngx_int_t ngx_http_grpc_parse_frame(ngx_http_request_t *r, | |
155 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
156 static ngx_int_t ngx_http_grpc_parse_header(ngx_http_request_t *r, | |
157 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
158 static ngx_int_t ngx_http_grpc_parse_fragment(ngx_http_request_t *r, | |
159 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
160 static ngx_int_t ngx_http_grpc_validate_header_name(ngx_http_request_t *r, | |
161 ngx_str_t *s); | |
162 static ngx_int_t ngx_http_grpc_validate_header_value(ngx_http_request_t *r, | |
163 ngx_str_t *s); | |
164 static ngx_int_t ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, | |
165 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
166 static ngx_int_t ngx_http_grpc_parse_goaway(ngx_http_request_t *r, | |
167 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
168 static ngx_int_t ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
169 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
170 static ngx_int_t ngx_http_grpc_parse_settings(ngx_http_request_t *r, | |
171 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
172 static ngx_int_t ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
173 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b); | |
174 | |
175 static ngx_int_t ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, | |
176 ngx_http_grpc_ctx_t *ctx); | |
177 static ngx_int_t ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, | |
178 ngx_http_grpc_ctx_t *ctx); | |
179 static ngx_int_t ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
180 ngx_http_grpc_ctx_t *ctx); | |
181 | |
182 static ngx_chain_t *ngx_http_grpc_get_buf(ngx_http_request_t *r, | |
183 ngx_http_grpc_ctx_t *ctx); | |
184 static ngx_http_grpc_ctx_t *ngx_http_grpc_get_ctx(ngx_http_request_t *r); | |
185 static ngx_int_t ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
186 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc); | |
187 static void ngx_http_grpc_cleanup(void *data); | |
188 | |
189 static void ngx_http_grpc_abort_request(ngx_http_request_t *r); | |
190 static void ngx_http_grpc_finalize_request(ngx_http_request_t *r, | |
191 ngx_int_t rc); | |
192 | |
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193 static ngx_int_t ngx_http_grpc_internal_trailers_variable( |
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194 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data); |
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195 |
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196 static ngx_int_t ngx_http_grpc_add_variables(ngx_conf_t *cf); |
7233 | 197 static void *ngx_http_grpc_create_loc_conf(ngx_conf_t *cf); |
198 static char *ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, | |
199 void *parent, void *child); | |
200 static ngx_int_t ngx_http_grpc_init_headers(ngx_conf_t *cf, | |
201 ngx_http_grpc_loc_conf_t *conf, ngx_http_grpc_headers_t *headers, | |
202 ngx_keyval_t *default_headers); | |
203 | |
204 static char *ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, | |
205 void *conf); | |
206 | |
207 #if (NGX_HTTP_SSL) | |
208 static char *ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, | |
209 ngx_command_t *cmd, void *conf); | |
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210 static char *ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, |
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211 void *data); |
7233 | 212 static ngx_int_t ngx_http_grpc_set_ssl(ngx_conf_t *cf, |
213 ngx_http_grpc_loc_conf_t *glcf); | |
214 #endif | |
215 | |
216 | |
217 static ngx_conf_bitmask_t ngx_http_grpc_next_upstream_masks[] = { | |
218 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, | |
219 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, | |
220 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, | |
221 { ngx_string("non_idempotent"), NGX_HTTP_UPSTREAM_FT_NON_IDEMPOTENT }, | |
222 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, | |
223 { ngx_string("http_502"), NGX_HTTP_UPSTREAM_FT_HTTP_502 }, | |
224 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 }, | |
225 { ngx_string("http_504"), NGX_HTTP_UPSTREAM_FT_HTTP_504 }, | |
226 { ngx_string("http_403"), NGX_HTTP_UPSTREAM_FT_HTTP_403 }, | |
227 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, | |
228 { ngx_string("http_429"), NGX_HTTP_UPSTREAM_FT_HTTP_429 }, | |
229 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF }, | |
230 { ngx_null_string, 0 } | |
231 }; | |
232 | |
233 | |
234 #if (NGX_HTTP_SSL) | |
235 | |
236 static ngx_conf_bitmask_t ngx_http_grpc_ssl_protocols[] = { | |
237 { ngx_string("SSLv2"), NGX_SSL_SSLv2 }, | |
238 { ngx_string("SSLv3"), NGX_SSL_SSLv3 }, | |
239 { ngx_string("TLSv1"), NGX_SSL_TLSv1 }, | |
240 { ngx_string("TLSv1.1"), NGX_SSL_TLSv1_1 }, | |
241 { ngx_string("TLSv1.2"), NGX_SSL_TLSv1_2 }, | |
242 { ngx_string("TLSv1.3"), NGX_SSL_TLSv1_3 }, | |
243 { ngx_null_string, 0 } | |
244 }; | |
245 | |
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246 static ngx_conf_post_t ngx_http_grpc_ssl_conf_command_post = |
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247 { ngx_http_grpc_ssl_conf_command_check }; |
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248 |
7233 | 249 #endif |
250 | |
251 | |
252 static ngx_command_t ngx_http_grpc_commands[] = { | |
253 | |
254 { ngx_string("grpc_pass"), | |
255 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
256 ngx_http_grpc_pass, | |
257 NGX_HTTP_LOC_CONF_OFFSET, | |
258 0, | |
259 NULL }, | |
260 | |
261 { ngx_string("grpc_bind"), | |
262 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12, | |
263 ngx_http_upstream_bind_set_slot, | |
264 NGX_HTTP_LOC_CONF_OFFSET, | |
265 offsetof(ngx_http_grpc_loc_conf_t, upstream.local), | |
266 NULL }, | |
267 | |
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268 { ngx_string("grpc_socket_keepalive"), |
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269 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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270 ngx_conf_set_flag_slot, |
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271 NGX_HTTP_LOC_CONF_OFFSET, |
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272 offsetof(ngx_http_grpc_loc_conf_t, upstream.socket_keepalive), |
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273 NULL }, |
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274 |
7233 | 275 { ngx_string("grpc_connect_timeout"), |
276 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
277 ngx_conf_set_msec_slot, | |
278 NGX_HTTP_LOC_CONF_OFFSET, | |
279 offsetof(ngx_http_grpc_loc_conf_t, upstream.connect_timeout), | |
280 NULL }, | |
281 | |
282 { ngx_string("grpc_send_timeout"), | |
283 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
284 ngx_conf_set_msec_slot, | |
285 NGX_HTTP_LOC_CONF_OFFSET, | |
286 offsetof(ngx_http_grpc_loc_conf_t, upstream.send_timeout), | |
287 NULL }, | |
288 | |
289 { ngx_string("grpc_intercept_errors"), | |
290 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
291 ngx_conf_set_flag_slot, | |
292 NGX_HTTP_LOC_CONF_OFFSET, | |
293 offsetof(ngx_http_grpc_loc_conf_t, upstream.intercept_errors), | |
294 NULL }, | |
295 | |
296 { ngx_string("grpc_buffer_size"), | |
297 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
298 ngx_conf_set_size_slot, | |
299 NGX_HTTP_LOC_CONF_OFFSET, | |
300 offsetof(ngx_http_grpc_loc_conf_t, upstream.buffer_size), | |
301 NULL }, | |
302 | |
303 { ngx_string("grpc_read_timeout"), | |
304 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
305 ngx_conf_set_msec_slot, | |
306 NGX_HTTP_LOC_CONF_OFFSET, | |
307 offsetof(ngx_http_grpc_loc_conf_t, upstream.read_timeout), | |
308 NULL }, | |
309 | |
310 { ngx_string("grpc_next_upstream"), | |
311 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
312 ngx_conf_set_bitmask_slot, | |
313 NGX_HTTP_LOC_CONF_OFFSET, | |
314 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream), | |
315 &ngx_http_grpc_next_upstream_masks }, | |
316 | |
317 { ngx_string("grpc_next_upstream_tries"), | |
318 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
319 ngx_conf_set_num_slot, | |
320 NGX_HTTP_LOC_CONF_OFFSET, | |
321 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_tries), | |
322 NULL }, | |
323 | |
324 { ngx_string("grpc_next_upstream_timeout"), | |
325 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
326 ngx_conf_set_msec_slot, | |
327 NGX_HTTP_LOC_CONF_OFFSET, | |
328 offsetof(ngx_http_grpc_loc_conf_t, upstream.next_upstream_timeout), | |
329 NULL }, | |
330 | |
331 { ngx_string("grpc_set_header"), | |
332 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, | |
333 ngx_conf_set_keyval_slot, | |
334 NGX_HTTP_LOC_CONF_OFFSET, | |
335 offsetof(ngx_http_grpc_loc_conf_t, headers_source), | |
336 NULL }, | |
337 | |
338 { ngx_string("grpc_pass_header"), | |
339 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
340 ngx_conf_set_str_array_slot, | |
341 NGX_HTTP_LOC_CONF_OFFSET, | |
342 offsetof(ngx_http_grpc_loc_conf_t, upstream.pass_headers), | |
343 NULL }, | |
344 | |
345 { ngx_string("grpc_hide_header"), | |
346 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
347 ngx_conf_set_str_array_slot, | |
348 NGX_HTTP_LOC_CONF_OFFSET, | |
349 offsetof(ngx_http_grpc_loc_conf_t, upstream.hide_headers), | |
350 NULL }, | |
351 | |
352 { ngx_string("grpc_ignore_headers"), | |
353 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
354 ngx_conf_set_bitmask_slot, | |
355 NGX_HTTP_LOC_CONF_OFFSET, | |
356 offsetof(ngx_http_grpc_loc_conf_t, upstream.ignore_headers), | |
357 &ngx_http_upstream_ignore_headers_masks }, | |
358 | |
359 #if (NGX_HTTP_SSL) | |
360 | |
361 { ngx_string("grpc_ssl_session_reuse"), | |
362 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
363 ngx_conf_set_flag_slot, | |
364 NGX_HTTP_LOC_CONF_OFFSET, | |
365 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_session_reuse), | |
366 NULL }, | |
367 | |
368 { ngx_string("grpc_ssl_protocols"), | |
369 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
370 ngx_conf_set_bitmask_slot, | |
371 NGX_HTTP_LOC_CONF_OFFSET, | |
372 offsetof(ngx_http_grpc_loc_conf_t, ssl_protocols), | |
373 &ngx_http_grpc_ssl_protocols }, | |
374 | |
375 { ngx_string("grpc_ssl_ciphers"), | |
376 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
377 ngx_conf_set_str_slot, | |
378 NGX_HTTP_LOC_CONF_OFFSET, | |
379 offsetof(ngx_http_grpc_loc_conf_t, ssl_ciphers), | |
380 NULL }, | |
381 | |
382 { ngx_string("grpc_ssl_name"), | |
383 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
384 ngx_http_set_complex_value_slot, | |
385 NGX_HTTP_LOC_CONF_OFFSET, | |
386 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_name), | |
387 NULL }, | |
388 | |
389 { ngx_string("grpc_ssl_server_name"), | |
390 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
391 ngx_conf_set_flag_slot, | |
392 NGX_HTTP_LOC_CONF_OFFSET, | |
393 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_server_name), | |
394 NULL }, | |
395 | |
396 { ngx_string("grpc_ssl_verify"), | |
397 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, | |
398 ngx_conf_set_flag_slot, | |
399 NGX_HTTP_LOC_CONF_OFFSET, | |
400 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_verify), | |
401 NULL }, | |
402 | |
403 { ngx_string("grpc_ssl_verify_depth"), | |
404 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
405 ngx_conf_set_num_slot, | |
406 NGX_HTTP_LOC_CONF_OFFSET, | |
407 offsetof(ngx_http_grpc_loc_conf_t, ssl_verify_depth), | |
408 NULL }, | |
409 | |
410 { ngx_string("grpc_ssl_trusted_certificate"), | |
411 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
412 ngx_conf_set_str_slot, | |
413 NGX_HTTP_LOC_CONF_OFFSET, | |
414 offsetof(ngx_http_grpc_loc_conf_t, ssl_trusted_certificate), | |
415 NULL }, | |
416 | |
417 { ngx_string("grpc_ssl_crl"), | |
418 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
419 ngx_conf_set_str_slot, | |
420 NGX_HTTP_LOC_CONF_OFFSET, | |
421 offsetof(ngx_http_grpc_loc_conf_t, ssl_crl), | |
422 NULL }, | |
423 | |
424 { ngx_string("grpc_ssl_certificate"), | |
425 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
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426 ngx_http_set_complex_value_zero_slot, |
7233 | 427 NGX_HTTP_LOC_CONF_OFFSET, |
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428 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_certificate), |
7233 | 429 NULL }, |
430 | |
431 { ngx_string("grpc_ssl_certificate_key"), | |
432 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
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433 ngx_http_set_complex_value_zero_slot, |
7233 | 434 NGX_HTTP_LOC_CONF_OFFSET, |
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435 offsetof(ngx_http_grpc_loc_conf_t, upstream.ssl_certificate_key), |
7233 | 436 NULL }, |
437 | |
438 { ngx_string("grpc_ssl_password_file"), | |
439 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
440 ngx_http_grpc_ssl_password_file, | |
441 NGX_HTTP_LOC_CONF_OFFSET, | |
442 0, | |
443 NULL }, | |
444 | |
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445 { ngx_string("grpc_ssl_conf_command"), |
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446 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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447 ngx_conf_set_keyval_slot, |
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448 NGX_HTTP_LOC_CONF_OFFSET, |
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449 offsetof(ngx_http_grpc_loc_conf_t, ssl_conf_commands), |
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450 &ngx_http_grpc_ssl_conf_command_post }, |
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451 |
7233 | 452 #endif |
453 | |
454 ngx_null_command | |
455 }; | |
456 | |
457 | |
458 static ngx_http_module_t ngx_http_grpc_module_ctx = { | |
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459 ngx_http_grpc_add_variables, /* preconfiguration */ |
7233 | 460 NULL, /* postconfiguration */ |
461 | |
462 NULL, /* create main configuration */ | |
463 NULL, /* init main configuration */ | |
464 | |
465 NULL, /* create server configuration */ | |
466 NULL, /* merge server configuration */ | |
467 | |
468 ngx_http_grpc_create_loc_conf, /* create location configuration */ | |
469 ngx_http_grpc_merge_loc_conf /* merge location configuration */ | |
470 }; | |
471 | |
472 | |
473 ngx_module_t ngx_http_grpc_module = { | |
474 NGX_MODULE_V1, | |
475 &ngx_http_grpc_module_ctx, /* module context */ | |
476 ngx_http_grpc_commands, /* module directives */ | |
477 NGX_HTTP_MODULE, /* module type */ | |
478 NULL, /* init master */ | |
479 NULL, /* init module */ | |
480 NULL, /* init process */ | |
481 NULL, /* init thread */ | |
482 NULL, /* exit thread */ | |
483 NULL, /* exit process */ | |
484 NULL, /* exit master */ | |
485 NGX_MODULE_V1_PADDING | |
486 }; | |
487 | |
488 | |
489 static u_char ngx_http_grpc_connection_start[] = | |
490 "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* connection preface */ | |
491 | |
492 "\x00\x00\x12\x04\x00\x00\x00\x00\x00" /* settings frame */ | |
493 "\x00\x01\x00\x00\x00\x00" /* header table size */ | |
494 "\x00\x02\x00\x00\x00\x00" /* disable push */ | |
495 "\x00\x04\x7f\xff\xff\xff" /* initial window */ | |
496 | |
497 "\x00\x00\x04\x08\x00\x00\x00\x00\x00" /* window update frame */ | |
498 "\x7f\xff\x00\x00"; | |
499 | |
500 | |
501 static ngx_keyval_t ngx_http_grpc_headers[] = { | |
502 { ngx_string("Content-Length"), ngx_string("$content_length") }, | |
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503 { ngx_string("TE"), ngx_string("$grpc_internal_trailers") }, |
7233 | 504 { ngx_string("Host"), ngx_string("") }, |
505 { ngx_string("Connection"), ngx_string("") }, | |
506 { ngx_string("Transfer-Encoding"), ngx_string("") }, | |
507 { ngx_string("Keep-Alive"), ngx_string("") }, | |
508 { ngx_string("Expect"), ngx_string("") }, | |
509 { ngx_string("Upgrade"), ngx_string("") }, | |
510 { ngx_null_string, ngx_null_string } | |
511 }; | |
512 | |
513 | |
514 static ngx_str_t ngx_http_grpc_hide_headers[] = { | |
515 ngx_string("Date"), | |
516 ngx_string("Server"), | |
517 ngx_string("X-Accel-Expires"), | |
518 ngx_string("X-Accel-Redirect"), | |
519 ngx_string("X-Accel-Limit-Rate"), | |
520 ngx_string("X-Accel-Buffering"), | |
521 ngx_string("X-Accel-Charset"), | |
522 ngx_null_string | |
523 }; | |
524 | |
525 | |
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526 static ngx_http_variable_t ngx_http_grpc_vars[] = { |
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527 |
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528 { ngx_string("grpc_internal_trailers"), NULL, |
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529 ngx_http_grpc_internal_trailers_variable, 0, |
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530 NGX_HTTP_VAR_NOCACHEABLE|NGX_HTTP_VAR_NOHASH, 0 }, |
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531 |
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532 ngx_http_null_variable |
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533 }; |
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534 |
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535 |
7233 | 536 static ngx_int_t |
537 ngx_http_grpc_handler(ngx_http_request_t *r) | |
538 { | |
539 ngx_int_t rc; | |
540 ngx_http_upstream_t *u; | |
541 ngx_http_grpc_ctx_t *ctx; | |
542 ngx_http_grpc_loc_conf_t *glcf; | |
543 | |
544 if (ngx_http_upstream_create(r) != NGX_OK) { | |
545 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
546 } | |
547 | |
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548 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_grpc_ctx_t)); |
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549 if (ctx == NULL) { |
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550 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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551 } |
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552 |
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553 ctx->request = r; |
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554 |
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555 ngx_http_set_ctx(r, ctx, ngx_http_grpc_module); |
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556 |
7233 | 557 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); |
558 | |
559 u = r->upstream; | |
560 | |
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561 if (glcf->grpc_lengths == NULL) { |
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562 ctx->host = glcf->host; |
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563 |
7233 | 564 #if (NGX_HTTP_SSL) |
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565 u->ssl = (glcf->upstream.ssl != NULL); |
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566 |
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567 if (u->ssl) { |
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568 ngx_str_set(&u->schema, "grpcs://"); |
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569 |
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570 } else { |
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571 ngx_str_set(&u->schema, "grpc://"); |
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572 } |
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573 #else |
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574 ngx_str_set(&u->schema, "grpc://"); |
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575 #endif |
7233 | 576 |
577 } else { | |
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578 if (ngx_http_grpc_eval(r, ctx, glcf) != NGX_OK) { |
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579 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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580 } |
7233 | 581 } |
582 | |
583 u->output.tag = (ngx_buf_tag_t) &ngx_http_grpc_module; | |
584 | |
585 u->conf = &glcf->upstream; | |
586 | |
587 u->create_request = ngx_http_grpc_create_request; | |
588 u->reinit_request = ngx_http_grpc_reinit_request; | |
589 u->process_header = ngx_http_grpc_process_header; | |
590 u->abort_request = ngx_http_grpc_abort_request; | |
591 u->finalize_request = ngx_http_grpc_finalize_request; | |
592 | |
593 u->input_filter_init = ngx_http_grpc_filter_init; | |
594 u->input_filter = ngx_http_grpc_filter; | |
595 u->input_filter_ctx = ctx; | |
596 | |
597 r->request_body_no_buffering = 1; | |
598 | |
599 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); | |
600 | |
601 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { | |
602 return rc; | |
603 } | |
604 | |
605 return NGX_DONE; | |
606 } | |
607 | |
608 | |
609 static ngx_int_t | |
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610 ngx_http_grpc_eval(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, |
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611 ngx_http_grpc_loc_conf_t *glcf) |
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612 { |
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613 size_t add; |
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614 ngx_url_t url; |
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615 ngx_http_upstream_t *u; |
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616 |
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617 ngx_memzero(&url, sizeof(ngx_url_t)); |
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618 |
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619 if (ngx_http_script_run(r, &url.url, glcf->grpc_lengths->elts, 0, |
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620 glcf->grpc_values->elts) |
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621 == NULL) |
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622 { |
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623 return NGX_ERROR; |
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624 } |
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625 |
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626 if (url.url.len > 7 |
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627 && ngx_strncasecmp(url.url.data, (u_char *) "grpc://", 7) == 0) |
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628 { |
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629 add = 7; |
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630 |
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631 } else if (url.url.len > 8 |
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632 && ngx_strncasecmp(url.url.data, (u_char *) "grpcs://", 8) == 0) |
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633 { |
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634 |
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635 #if (NGX_HTTP_SSL) |
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636 add = 8; |
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637 r->upstream->ssl = 1; |
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638 #else |
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639 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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640 "grpcs protocol requires SSL support"); |
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641 return NGX_ERROR; |
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642 #endif |
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643 |
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644 } else { |
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645 add = 0; |
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646 } |
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647 |
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648 u = r->upstream; |
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649 |
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650 if (add) { |
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651 u->schema.len = add; |
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652 u->schema.data = url.url.data; |
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653 |
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654 url.url.data += add; |
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655 url.url.len -= add; |
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656 |
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657 } else { |
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658 ngx_str_set(&u->schema, "grpc://"); |
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659 } |
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660 |
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661 url.no_resolve = 1; |
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662 |
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663 if (ngx_parse_url(r->pool, &url) != NGX_OK) { |
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664 if (url.err) { |
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665 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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666 "%s in upstream \"%V\"", url.err, &url.url); |
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667 } |
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668 |
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|
669 return NGX_ERROR; |
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670 } |
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671 |
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672 u->resolved = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_resolved_t)); |
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673 if (u->resolved == NULL) { |
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674 return NGX_ERROR; |
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675 } |
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676 |
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677 if (url.addrs) { |
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678 u->resolved->sockaddr = url.addrs[0].sockaddr; |
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679 u->resolved->socklen = url.addrs[0].socklen; |
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680 u->resolved->name = url.addrs[0].name; |
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681 u->resolved->naddrs = 1; |
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682 } |
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683 |
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684 u->resolved->host = url.host; |
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685 u->resolved->port = url.port; |
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686 u->resolved->no_port = url.no_port; |
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687 |
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|
688 if (url.family != AF_UNIX) { |
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689 |
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|
690 if (url.no_port) { |
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691 ctx->host = url.host; |
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|
692 |
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|
693 } else { |
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|
694 ctx->host.len = url.host.len + 1 + url.port_text.len; |
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695 ctx->host.data = url.host.data; |
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|
696 } |
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697 |
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698 } else { |
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699 ngx_str_set(&ctx->host, "localhost"); |
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700 } |
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701 |
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702 return NGX_OK; |
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703 } |
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704 |
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|
705 |
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|
706 static ngx_int_t |
7233 | 707 ngx_http_grpc_create_request(ngx_http_request_t *r) |
708 { | |
709 u_char *p, *tmp, *key_tmp, *val_tmp, *headers_frame; | |
710 size_t len, tmp_len, key_len, val_len, uri_len; | |
711 uintptr_t escape; | |
712 ngx_buf_t *b; | |
713 ngx_uint_t i, next; | |
714 ngx_chain_t *cl, *body; | |
715 ngx_list_part_t *part; | |
716 ngx_table_elt_t *header; | |
7619
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717 ngx_http_grpc_ctx_t *ctx; |
7233 | 718 ngx_http_upstream_t *u; |
719 ngx_http_grpc_frame_t *f; | |
720 ngx_http_script_code_pt code; | |
721 ngx_http_grpc_loc_conf_t *glcf; | |
722 ngx_http_script_engine_t e, le; | |
723 ngx_http_script_len_code_pt lcode; | |
724 | |
725 u = r->upstream; | |
726 | |
727 glcf = ngx_http_get_module_loc_conf(r, ngx_http_grpc_module); | |
728 | |
7619
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729 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); |
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730 |
7233 | 731 len = sizeof(ngx_http_grpc_connection_start) - 1 |
732 + sizeof(ngx_http_grpc_frame_t); /* headers frame */ | |
733 | |
734 /* :method header */ | |
735 | |
736 if (r->method == NGX_HTTP_GET || r->method == NGX_HTTP_POST) { | |
737 len += 1; | |
738 tmp_len = 0; | |
739 | |
740 } else { | |
741 len += 1 + NGX_HTTP_V2_INT_OCTETS + r->method_name.len; | |
742 tmp_len = r->method_name.len; | |
743 } | |
744 | |
745 /* :scheme header */ | |
746 | |
747 len += 1; | |
748 | |
749 /* :path header */ | |
750 | |
751 if (r->valid_unparsed_uri) { | |
752 escape = 0; | |
753 uri_len = r->unparsed_uri.len; | |
754 | |
755 } else { | |
756 escape = 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
757 NGX_ESCAPE_URI); | |
758 uri_len = r->uri.len + escape + sizeof("?") - 1 + r->args.len; | |
759 } | |
760 | |
761 len += 1 + NGX_HTTP_V2_INT_OCTETS + uri_len; | |
762 | |
763 if (tmp_len < uri_len) { | |
764 tmp_len = uri_len; | |
765 } | |
766 | |
767 /* :authority header */ | |
768 | |
769 if (!glcf->host_set) { | |
7619
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770 len += 1 + NGX_HTTP_V2_INT_OCTETS + ctx->host.len; |
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|
771 |
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|
772 if (tmp_len < ctx->host.len) { |
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773 tmp_len = ctx->host.len; |
7233 | 774 } |
775 } | |
776 | |
777 /* other headers */ | |
778 | |
779 ngx_http_script_flush_no_cacheable_variables(r, glcf->headers.flushes); | |
780 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
781 | |
782 le.ip = glcf->headers.lengths->elts; | |
783 le.request = r; | |
784 le.flushed = 1; | |
785 | |
786 while (*(uintptr_t *) le.ip) { | |
787 | |
788 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
789 key_len = lcode(&le); | |
790 | |
791 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
792 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
793 } | |
794 le.ip += sizeof(uintptr_t); | |
795 | |
796 if (val_len == 0) { | |
797 continue; | |
798 } | |
799 | |
800 len += 1 + NGX_HTTP_V2_INT_OCTETS + key_len | |
801 + NGX_HTTP_V2_INT_OCTETS + val_len; | |
802 | |
803 if (tmp_len < key_len) { | |
804 tmp_len = key_len; | |
805 } | |
806 | |
807 if (tmp_len < val_len) { | |
808 tmp_len = val_len; | |
809 } | |
810 } | |
811 | |
812 if (glcf->upstream.pass_request_headers) { | |
813 part = &r->headers_in.headers.part; | |
814 header = part->elts; | |
815 | |
816 for (i = 0; /* void */; i++) { | |
817 | |
818 if (i >= part->nelts) { | |
819 if (part->next == NULL) { | |
820 break; | |
821 } | |
822 | |
823 part = part->next; | |
824 header = part->elts; | |
825 i = 0; | |
826 } | |
827 | |
828 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
829 header[i].lowcase_key, header[i].key.len)) | |
830 { | |
831 continue; | |
832 } | |
833 | |
834 len += 1 + NGX_HTTP_V2_INT_OCTETS + header[i].key.len | |
835 + NGX_HTTP_V2_INT_OCTETS + header[i].value.len; | |
836 | |
837 if (tmp_len < header[i].key.len) { | |
838 tmp_len = header[i].key.len; | |
839 } | |
840 | |
841 if (tmp_len < header[i].value.len) { | |
842 tmp_len = header[i].value.len; | |
843 } | |
844 } | |
845 } | |
846 | |
847 /* continuation frames */ | |
848 | |
849 len += sizeof(ngx_http_grpc_frame_t) | |
850 * (len / NGX_HTTP_V2_DEFAULT_FRAME_SIZE); | |
851 | |
852 | |
853 b = ngx_create_temp_buf(r->pool, len); | |
854 if (b == NULL) { | |
855 return NGX_ERROR; | |
856 } | |
857 | |
858 cl = ngx_alloc_chain_link(r->pool); | |
859 if (cl == NULL) { | |
860 return NGX_ERROR; | |
861 } | |
862 | |
863 cl->buf = b; | |
864 cl->next = NULL; | |
865 | |
866 tmp = ngx_palloc(r->pool, tmp_len * 3); | |
867 if (tmp == NULL) { | |
868 return NGX_ERROR; | |
869 } | |
870 | |
871 key_tmp = tmp + tmp_len; | |
872 val_tmp = tmp + 2 * tmp_len; | |
873 | |
874 /* connection preface */ | |
875 | |
876 b->last = ngx_copy(b->last, ngx_http_grpc_connection_start, | |
877 sizeof(ngx_http_grpc_connection_start) - 1); | |
878 | |
879 /* headers frame */ | |
880 | |
881 headers_frame = b->last; | |
882 | |
883 f = (ngx_http_grpc_frame_t *) b->last; | |
884 b->last += sizeof(ngx_http_grpc_frame_t); | |
885 | |
886 f->length_0 = 0; | |
887 f->length_1 = 0; | |
888 f->length_2 = 0; | |
889 f->type = NGX_HTTP_V2_HEADERS_FRAME; | |
890 f->flags = 0; | |
891 f->stream_id_0 = 0; | |
892 f->stream_id_1 = 0; | |
893 f->stream_id_2 = 0; | |
894 f->stream_id_3 = 1; | |
895 | |
896 if (r->method == NGX_HTTP_GET) { | |
897 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_GET_INDEX); | |
898 | |
899 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
900 "grpc header: \":method: GET\""); | |
901 | |
902 } else if (r->method == NGX_HTTP_POST) { | |
903 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_METHOD_POST_INDEX); | |
904 | |
905 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
906 "grpc header: \":method: POST\""); | |
907 | |
908 } else { | |
909 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_METHOD_INDEX); | |
910 b->last = ngx_http_v2_write_value(b->last, r->method_name.data, | |
911 r->method_name.len, tmp); | |
912 | |
913 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
914 "grpc header: \":method: %V\"", &r->method_name); | |
915 } | |
916 | |
917 #if (NGX_HTTP_SSL) | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
918 if (u->ssl) { |
7233 | 919 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTPS_INDEX); |
920 | |
921 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
922 "grpc header: \":scheme: https\""); | |
923 } else | |
924 #endif | |
925 { | |
926 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_SCHEME_HTTP_INDEX); | |
927 | |
928 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
929 "grpc header: \":scheme: http\""); | |
930 } | |
931 | |
932 if (r->valid_unparsed_uri) { | |
933 | |
934 if (r->unparsed_uri.len == 1 && r->unparsed_uri.data[0] == '/') { | |
935 *b->last++ = ngx_http_v2_indexed(NGX_HTTP_V2_PATH_ROOT_INDEX); | |
936 | |
937 } else { | |
938 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
939 b->last = ngx_http_v2_write_value(b->last, r->unparsed_uri.data, | |
940 r->unparsed_uri.len, tmp); | |
941 } | |
942 | |
943 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
944 "grpc header: \":path: %V\"", &r->unparsed_uri); | |
945 | |
946 } else if (escape || r->args.len > 0) { | |
947 p = val_tmp; | |
948 | |
949 if (escape) { | |
950 p = (u_char *) ngx_escape_uri(p, r->uri.data, r->uri.len, | |
951 NGX_ESCAPE_URI); | |
952 | |
953 } else { | |
954 p = ngx_copy(p, r->uri.data, r->uri.len); | |
955 } | |
956 | |
957 if (r->args.len > 0) { | |
958 *p++ = '?'; | |
959 p = ngx_copy(p, r->args.data, r->args.len); | |
960 } | |
961 | |
962 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
963 b->last = ngx_http_v2_write_value(b->last, val_tmp, p - val_tmp, tmp); | |
964 | |
965 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
966 "grpc header: \":path: %*s\"", p - val_tmp, val_tmp); | |
967 | |
968 } else { | |
969 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_PATH_INDEX); | |
970 b->last = ngx_http_v2_write_value(b->last, r->uri.data, | |
971 r->uri.len, tmp); | |
972 | |
973 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
974 "grpc header: \":path: %V\"", &r->uri); | |
975 } | |
976 | |
977 if (!glcf->host_set) { | |
978 *b->last++ = ngx_http_v2_inc_indexed(NGX_HTTP_V2_AUTHORITY_INDEX); | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
979 b->last = ngx_http_v2_write_value(b->last, ctx->host.data, |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
980 ctx->host.len, tmp); |
7233 | 981 |
982 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
983 "grpc header: \":authority: %V\"", &ctx->host); |
7233 | 984 } |
985 | |
986 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
987 | |
988 e.ip = glcf->headers.values->elts; | |
989 e.request = r; | |
990 e.flushed = 1; | |
991 | |
992 le.ip = glcf->headers.lengths->elts; | |
993 | |
994 while (*(uintptr_t *) le.ip) { | |
995 | |
996 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
997 key_len = lcode(&le); | |
998 | |
999 for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { | |
1000 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
1001 } | |
1002 le.ip += sizeof(uintptr_t); | |
1003 | |
1004 if (val_len == 0) { | |
1005 e.skip = 1; | |
1006 | |
1007 while (*(uintptr_t *) e.ip) { | |
1008 code = *(ngx_http_script_code_pt *) e.ip; | |
1009 code((ngx_http_script_engine_t *) &e); | |
1010 } | |
1011 e.ip += sizeof(uintptr_t); | |
1012 | |
1013 e.skip = 0; | |
1014 | |
1015 continue; | |
1016 } | |
1017 | |
1018 *b->last++ = 0; | |
1019 | |
1020 e.pos = key_tmp; | |
1021 | |
1022 code = *(ngx_http_script_code_pt *) e.ip; | |
1023 code((ngx_http_script_engine_t *) &e); | |
1024 | |
1025 b->last = ngx_http_v2_write_name(b->last, key_tmp, key_len, tmp); | |
1026 | |
1027 e.pos = val_tmp; | |
1028 | |
1029 while (*(uintptr_t *) e.ip) { | |
1030 code = *(ngx_http_script_code_pt *) e.ip; | |
1031 code((ngx_http_script_engine_t *) &e); | |
1032 } | |
1033 e.ip += sizeof(uintptr_t); | |
1034 | |
1035 b->last = ngx_http_v2_write_value(b->last, val_tmp, val_len, tmp); | |
1036 | |
1037 #if (NGX_DEBUG) | |
1038 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1039 ngx_strlow(key_tmp, key_tmp, key_len); | |
1040 | |
1041 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1042 "grpc header: \"%*s: %*s\"", | |
1043 key_len, key_tmp, val_len, val_tmp); | |
1044 } | |
1045 #endif | |
1046 } | |
1047 | |
1048 if (glcf->upstream.pass_request_headers) { | |
1049 part = &r->headers_in.headers.part; | |
1050 header = part->elts; | |
1051 | |
1052 for (i = 0; /* void */; i++) { | |
1053 | |
1054 if (i >= part->nelts) { | |
1055 if (part->next == NULL) { | |
1056 break; | |
1057 } | |
1058 | |
1059 part = part->next; | |
1060 header = part->elts; | |
1061 i = 0; | |
1062 } | |
1063 | |
1064 if (ngx_hash_find(&glcf->headers.hash, header[i].hash, | |
1065 header[i].lowcase_key, header[i].key.len)) | |
1066 { | |
1067 continue; | |
1068 } | |
1069 | |
1070 *b->last++ = 0; | |
1071 | |
1072 b->last = ngx_http_v2_write_name(b->last, header[i].key.data, | |
1073 header[i].key.len, tmp); | |
1074 | |
1075 b->last = ngx_http_v2_write_value(b->last, header[i].value.data, | |
1076 header[i].value.len, tmp); | |
1077 | |
1078 #if (NGX_DEBUG) | |
1079 if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) { | |
1080 ngx_strlow(tmp, header[i].key.data, header[i].key.len); | |
1081 | |
1082 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1083 "grpc header: \"%*s: %V\"", | |
1084 header[i].key.len, tmp, &header[i].value); | |
1085 } | |
1086 #endif | |
1087 } | |
1088 } | |
1089 | |
1090 /* update headers frame length */ | |
1091 | |
1092 len = b->last - headers_frame - sizeof(ngx_http_grpc_frame_t); | |
1093 | |
1094 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
1095 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1096 next = 1; | |
1097 | |
1098 } else { | |
1099 next = 0; | |
1100 } | |
1101 | |
1102 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1103 | |
1104 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1105 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1106 f->length_2 = (u_char) (len & 0xff); | |
1107 | |
1108 /* create additional continuation frames */ | |
1109 | |
1110 p = headers_frame; | |
1111 | |
1112 while (next) { | |
1113 p += sizeof(ngx_http_grpc_frame_t) + NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1114 len = b->last - p; | |
1115 | |
1116 ngx_memmove(p + sizeof(ngx_http_grpc_frame_t), p, len); | |
1117 b->last += sizeof(ngx_http_grpc_frame_t); | |
1118 | |
1119 if (len > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
1120 len = NGX_HTTP_V2_DEFAULT_FRAME_SIZE; | |
1121 next = 1; | |
1122 | |
1123 } else { | |
1124 next = 0; | |
1125 } | |
1126 | |
1127 f = (ngx_http_grpc_frame_t *) p; | |
1128 | |
1129 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1130 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1131 f->length_2 = (u_char) (len & 0xff); | |
1132 f->type = NGX_HTTP_V2_CONTINUATION_FRAME; | |
1133 f->flags = 0; | |
1134 f->stream_id_0 = 0; | |
1135 f->stream_id_1 = 0; | |
1136 f->stream_id_2 = 0; | |
1137 f->stream_id_3 = 1; | |
1138 } | |
1139 | |
1140 f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG; | |
1141 | |
7736
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1142 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1143 "grpc header: %*xs%s, len: %uz", |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1144 (size_t) ngx_min(b->last - b->pos, 256), b->pos, |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1145 b->last - b->pos > 256 ? "..." : "", |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1146 b->last - b->pos); |
7233 | 1147 |
1148 if (r->request_body_no_buffering) { | |
1149 | |
1150 u->request_bufs = cl; | |
1151 | |
1152 } else { | |
1153 | |
1154 body = u->request_bufs; | |
1155 u->request_bufs = cl; | |
1156 | |
1157 if (body == NULL) { | |
1158 f = (ngx_http_grpc_frame_t *) headers_frame; | |
1159 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1160 } | |
1161 | |
1162 while (body) { | |
1163 b = ngx_alloc_buf(r->pool); | |
1164 if (b == NULL) { | |
1165 return NGX_ERROR; | |
1166 } | |
1167 | |
1168 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); | |
1169 | |
1170 cl->next = ngx_alloc_chain_link(r->pool); | |
1171 if (cl->next == NULL) { | |
1172 return NGX_ERROR; | |
1173 } | |
1174 | |
1175 cl = cl->next; | |
1176 cl->buf = b; | |
1177 | |
1178 body = body->next; | |
1179 } | |
1180 | |
1181 b->last_buf = 1; | |
1182 } | |
1183 | |
1184 u->output.output_filter = ngx_http_grpc_body_output_filter; | |
1185 u->output.filter_ctx = r; | |
1186 | |
1187 b->flush = 1; | |
1188 cl->next = NULL; | |
1189 | |
1190 return NGX_OK; | |
1191 } | |
1192 | |
1193 | |
1194 static ngx_int_t | |
1195 ngx_http_grpc_reinit_request(ngx_http_request_t *r) | |
1196 { | |
1197 ngx_http_grpc_ctx_t *ctx; | |
1198 | |
1199 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
1200 | |
1201 if (ctx == NULL) { | |
1202 return NGX_OK; | |
1203 } | |
1204 | |
1205 ctx->state = 0; | |
1206 ctx->header_sent = 0; | |
1207 ctx->output_closed = 0; | |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1208 ctx->output_blocked = 0; |
7233 | 1209 ctx->parsing_headers = 0; |
1210 ctx->end_stream = 0; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1211 ctx->done = 0; |
7233 | 1212 ctx->status = 0; |
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
1213 ctx->rst = 0; |
7872
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
1214 ctx->goaway = 0; |
7233 | 1215 ctx->connection = NULL; |
1216 | |
1217 return NGX_OK; | |
1218 } | |
1219 | |
1220 | |
1221 static ngx_int_t | |
1222 ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in) | |
1223 { | |
1224 ngx_http_request_t *r = data; | |
1225 | |
1226 off_t file_pos; | |
1227 u_char *p, *pos, *start; | |
1228 size_t len, limit; | |
1229 ngx_buf_t *b; | |
1230 ngx_int_t rc; | |
1231 ngx_uint_t next, last; | |
1232 ngx_chain_t *cl, *out, **ll; | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1233 ngx_http_upstream_t *u; |
7233 | 1234 ngx_http_grpc_ctx_t *ctx; |
1235 ngx_http_grpc_frame_t *f; | |
1236 | |
1237 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1238 "grpc output filter"); | |
1239 | |
1240 ctx = ngx_http_grpc_get_ctx(r); | |
1241 | |
1242 if (ctx == NULL) { | |
1243 return NGX_ERROR; | |
1244 } | |
1245 | |
1246 if (in) { | |
1247 if (ngx_chain_add_copy(r->pool, &ctx->in, in) != NGX_OK) { | |
1248 return NGX_ERROR; | |
1249 } | |
1250 } | |
1251 | |
1252 out = NULL; | |
1253 ll = &out; | |
1254 | |
1255 if (!ctx->header_sent) { | |
1256 /* first buffer contains headers */ | |
1257 | |
1258 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1259 "grpc output header"); | |
1260 | |
1261 ctx->header_sent = 1; | |
1262 | |
1263 if (ctx->id != 1) { | |
1264 /* | |
1265 * keepalive connection: skip connection preface, | |
1266 * update stream identifiers | |
1267 */ | |
1268 | |
1269 b = ctx->in->buf; | |
1270 b->pos += sizeof(ngx_http_grpc_connection_start) - 1; | |
1271 | |
1272 p = b->pos; | |
1273 | |
1274 while (p < b->last) { | |
1275 f = (ngx_http_grpc_frame_t *) p; | |
1276 p += sizeof(ngx_http_grpc_frame_t); | |
1277 | |
1278 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1279 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1280 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1281 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1282 | |
1283 p += (f->length_0 << 16) + (f->length_1 << 8) + f->length_2; | |
1284 } | |
1285 } | |
1286 | |
1287 if (ctx->in->buf->last_buf) { | |
1288 ctx->output_closed = 1; | |
1289 } | |
1290 | |
1291 *ll = ctx->in; | |
1292 ll = &ctx->in->next; | |
1293 | |
1294 ctx->in = ctx->in->next; | |
1295 } | |
1296 | |
1297 if (ctx->out) { | |
1298 /* queued control frames */ | |
1299 | |
1300 *ll = ctx->out; | |
1301 | |
1302 for (cl = ctx->out, ll = &cl->next; cl; cl = cl->next) { | |
1303 ll = &cl->next; | |
1304 } | |
1305 | |
1306 ctx->out = NULL; | |
1307 } | |
1308 | |
1309 f = NULL; | |
1310 last = 0; | |
1311 | |
1312 limit = ngx_max(0, ctx->send_window); | |
1313 | |
1314 if (limit > ctx->connection->send_window) { | |
1315 limit = ctx->connection->send_window; | |
1316 } | |
1317 | |
1318 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1319 "grpc output limit: %uz w:%z:%uz", | |
1320 limit, ctx->send_window, ctx->connection->send_window); | |
1321 | |
1322 #if (NGX_SUPPRESS_WARN) | |
1323 file_pos = 0; | |
1324 pos = NULL; | |
1325 cl = NULL; | |
1326 #endif | |
1327 | |
1328 in = ctx->in; | |
1329 | |
1330 while (in && limit > 0) { | |
1331 | |
1332 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1333 "grpc output in l:%d f:%d %p, pos %p, size: %z " | |
1334 "file: %O, size: %O", | |
1335 in->buf->last_buf, | |
1336 in->buf->in_file, | |
1337 in->buf->start, in->buf->pos, | |
1338 in->buf->last - in->buf->pos, | |
1339 in->buf->file_pos, | |
1340 in->buf->file_last - in->buf->file_pos); | |
1341 | |
1342 if (ngx_buf_special(in->buf)) { | |
1343 goto next; | |
1344 } | |
1345 | |
1346 if (in->buf->in_file) { | |
1347 file_pos = in->buf->file_pos; | |
1348 | |
1349 } else { | |
1350 pos = in->buf->pos; | |
1351 } | |
1352 | |
1353 next = 0; | |
1354 | |
1355 do { | |
1356 | |
1357 cl = ngx_http_grpc_get_buf(r, ctx); | |
1358 if (cl == NULL) { | |
1359 return NGX_ERROR; | |
1360 } | |
1361 | |
1362 b = cl->buf; | |
1363 | |
1364 f = (ngx_http_grpc_frame_t *) b->last; | |
1365 b->last += sizeof(ngx_http_grpc_frame_t); | |
1366 | |
1367 *ll = cl; | |
1368 ll = &cl->next; | |
1369 | |
1370 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
1371 if (cl == NULL) { | |
1372 return NGX_ERROR; | |
1373 } | |
1374 | |
1375 b = cl->buf; | |
1376 start = b->start; | |
1377 | |
1378 ngx_memcpy(b, in->buf, sizeof(ngx_buf_t)); | |
1379 | |
1380 /* | |
1381 * restore b->start to preserve memory allocated in the buffer, | |
1382 * to reuse it later for headers and control frames | |
1383 */ | |
1384 | |
1385 b->start = start; | |
1386 | |
1387 if (in->buf->in_file) { | |
1388 b->file_pos = file_pos; | |
1389 file_pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1390 | |
1391 if (file_pos >= in->buf->file_last) { | |
1392 file_pos = in->buf->file_last; | |
1393 next = 1; | |
1394 } | |
1395 | |
1396 b->file_last = file_pos; | |
1397 len = (ngx_uint_t) (file_pos - b->file_pos); | |
1398 | |
1399 } else { | |
1400 b->pos = pos; | |
1401 pos += ngx_min(NGX_HTTP_V2_DEFAULT_FRAME_SIZE, limit); | |
1402 | |
1403 if (pos >= in->buf->last) { | |
1404 pos = in->buf->last; | |
1405 next = 1; | |
1406 } | |
1407 | |
1408 b->last = pos; | |
1409 len = (ngx_uint_t) (pos - b->pos); | |
1410 } | |
1411 | |
1412 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; | |
1413 b->shadow = in->buf; | |
1414 b->last_shadow = next; | |
1415 | |
1416 b->last_buf = 0; | |
1417 b->last_in_chain = 0; | |
1418 | |
1419 *ll = cl; | |
1420 ll = &cl->next; | |
1421 | |
1422 f->length_0 = (u_char) ((len >> 16) & 0xff); | |
1423 f->length_1 = (u_char) ((len >> 8) & 0xff); | |
1424 f->length_2 = (u_char) (len & 0xff); | |
1425 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1426 f->flags = 0; | |
1427 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1428 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1429 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1430 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1431 | |
1432 limit -= len; | |
1433 ctx->send_window -= len; | |
1434 ctx->connection->send_window -= len; | |
1435 | |
1436 } while (!next && limit > 0); | |
1437 | |
1438 if (!next) { | |
1439 /* | |
1440 * if the buffer wasn't fully sent due to flow control limits, | |
1441 * preserve position for future use | |
1442 */ | |
1443 | |
1444 if (in->buf->in_file) { | |
1445 in->buf->file_pos = file_pos; | |
1446 | |
1447 } else { | |
1448 in->buf->pos = pos; | |
1449 } | |
1450 | |
1451 break; | |
1452 } | |
1453 | |
1454 next: | |
1455 | |
1456 if (in->buf->last_buf) { | |
1457 last = 1; | |
1458 } | |
1459 | |
1460 in = in->next; | |
1461 } | |
1462 | |
1463 ctx->in = in; | |
1464 | |
1465 if (last) { | |
1466 | |
1467 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1468 "grpc output last"); | |
1469 | |
1470 ctx->output_closed = 1; | |
1471 | |
1472 if (f) { | |
1473 f->flags |= NGX_HTTP_V2_END_STREAM_FLAG; | |
1474 | |
1475 } else { | |
1476 cl = ngx_http_grpc_get_buf(r, ctx); | |
1477 if (cl == NULL) { | |
1478 return NGX_ERROR; | |
1479 } | |
1480 | |
1481 b = cl->buf; | |
1482 | |
1483 f = (ngx_http_grpc_frame_t *) b->last; | |
1484 b->last += sizeof(ngx_http_grpc_frame_t); | |
1485 | |
1486 f->length_0 = 0; | |
1487 f->length_1 = 0; | |
1488 f->length_2 = 0; | |
1489 f->type = NGX_HTTP_V2_DATA_FRAME; | |
1490 f->flags = NGX_HTTP_V2_END_STREAM_FLAG; | |
1491 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
1492 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
1493 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
1494 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
1495 | |
1496 *ll = cl; | |
1497 ll = &cl->next; | |
1498 } | |
1499 | |
1500 cl->buf->last_buf = 1; | |
1501 } | |
1502 | |
1503 *ll = NULL; | |
1504 | |
1505 #if (NGX_DEBUG) | |
1506 | |
1507 for (cl = out; cl; cl = cl->next) { | |
1508 ngx_log_debug7(NGX_LOG_DEBUG_EVENT, r->connection->log, 0, | |
1509 "grpc output out l:%d f:%d %p, pos %p, size: %z " | |
1510 "file: %O, size: %O", | |
1511 cl->buf->last_buf, | |
1512 cl->buf->in_file, | |
1513 cl->buf->start, cl->buf->pos, | |
1514 cl->buf->last - cl->buf->pos, | |
1515 cl->buf->file_pos, | |
1516 cl->buf->file_last - cl->buf->file_pos); | |
1517 } | |
1518 | |
1519 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1520 "grpc output limit: %uz w:%z:%uz", | |
1521 limit, ctx->send_window, ctx->connection->send_window); | |
1522 | |
1523 #endif | |
1524 | |
1525 rc = ngx_chain_writer(&r->upstream->writer, out); | |
1526 | |
1527 ngx_chain_update_chains(r->pool, &ctx->free, &ctx->busy, &out, | |
1528 (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter); | |
1529 | |
1530 for (cl = ctx->free; cl; cl = cl->next) { | |
1531 | |
1532 /* mark original buffers as sent */ | |
1533 | |
1534 if (cl->buf->shadow) { | |
1535 if (cl->buf->last_shadow) { | |
1536 b = cl->buf->shadow; | |
1537 b->pos = b->last; | |
1538 } | |
1539 | |
1540 cl->buf->shadow = NULL; | |
1541 } | |
1542 } | |
1543 | |
1544 if (rc == NGX_OK && ctx->in) { | |
1545 rc = NGX_AGAIN; | |
1546 } | |
1547 | |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1548 if (rc == NGX_AGAIN) { |
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1549 ctx->output_blocked = 1; |
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1550 |
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
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parents:
7349
diff
changeset
|
1551 } else { |
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1552 ctx->output_blocked = 0; |
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1553 } |
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1554 |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1555 if (ctx->done) { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1556 |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1557 /* |
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
1558 * We have already got the response and were sending some additional |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1559 * control frames. Even if there is still something unsent, stop |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1560 * here anyway. |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1561 */ |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1562 |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1563 u = r->upstream; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1564 u->length = 0; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1565 |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1566 if (ctx->in == NULL |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1567 && ctx->out == NULL |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1568 && ctx->output_closed |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
1569 && !ctx->output_blocked |
7872
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
1570 && !ctx->goaway |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1571 && ctx->state == ngx_http_grpc_st_start) |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1572 { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1573 u->keepalive = 1; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1574 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
1575 |
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
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|
1576 ngx_post_event(u->peer.connection->read, &ngx_posted_events); |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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|
1577 } |
f6047a579ca1
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|
1578 |
7233 | 1579 return rc; |
1580 } | |
1581 | |
1582 | |
1583 static ngx_int_t | |
1584 ngx_http_grpc_process_header(ngx_http_request_t *r) | |
1585 { | |
1586 ngx_str_t *status_line; | |
1587 ngx_int_t rc, status; | |
1588 ngx_buf_t *b; | |
1589 ngx_table_elt_t *h; | |
1590 ngx_http_upstream_t *u; | |
1591 ngx_http_grpc_ctx_t *ctx; | |
1592 ngx_http_upstream_header_t *hh; | |
1593 ngx_http_upstream_main_conf_t *umcf; | |
1594 | |
1595 u = r->upstream; | |
1596 b = &u->buffer; | |
1597 | |
7736
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1598 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1599 "grpc response: %*xs%s, len: %uz", |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1600 (size_t) ngx_min(b->last - b->pos, 256), |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1601 b->pos, b->last - b->pos > 256 ? "..." : "", |
a46fcf101cfc
Core: added format specifiers to output binary data as hex.
Vladimir Homutov <vl@nginx.com>
parents:
7730
diff
changeset
|
1602 b->last - b->pos); |
7233 | 1603 |
1604 ctx = ngx_http_grpc_get_ctx(r); | |
1605 | |
1606 if (ctx == NULL) { | |
1607 return NGX_ERROR; | |
1608 } | |
1609 | |
1610 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); | |
1611 | |
1612 for ( ;; ) { | |
1613 | |
1614 if (ctx->state < ngx_http_grpc_st_payload) { | |
1615 | |
1616 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
1617 | |
1618 if (rc == NGX_AGAIN) { | |
1619 | |
1620 /* | |
1621 * there can be a lot of window update frames, | |
1622 * so we reset buffer if it is empty and we haven't | |
1623 * started parsing headers yet | |
1624 */ | |
1625 | |
1626 if (!ctx->parsing_headers) { | |
1627 b->pos = b->start; | |
1628 b->last = b->pos; | |
1629 } | |
1630 | |
1631 return NGX_AGAIN; | |
1632 } | |
1633 | |
1634 if (rc == NGX_ERROR) { | |
1635 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1636 } | |
1637 | |
1638 /* | |
1639 * RFC 7540 says that implementations MUST discard frames | |
1640 * that have unknown or unsupported types. However, extension | |
1641 * frames that appear in the middle of a header block are | |
1642 * not permitted. Also, for obvious reasons CONTINUATION frames | |
1643 * cannot appear before headers, and DATA frames are not expected | |
1644 * to appear before all headers are parsed. | |
1645 */ | |
1646 | |
1647 if (ctx->type == NGX_HTTP_V2_DATA_FRAME | |
1648 || (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
1649 && !ctx->parsing_headers) | |
1650 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
1651 && ctx->parsing_headers)) | |
1652 { | |
1653 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1654 "upstream sent unexpected http2 frame: %d", | |
1655 ctx->type); | |
1656 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1657 } | |
1658 | |
1659 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
1660 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1661 "upstream sent frame for unknown stream %ui", | |
1662 ctx->stream_id); | |
1663 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1664 } | |
1665 } | |
1666 | |
1667 /* frame payload */ | |
1668 | |
1669 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
1670 | |
1671 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
1672 | |
1673 if (rc == NGX_AGAIN) { | |
1674 return NGX_AGAIN; | |
1675 } | |
1676 | |
1677 if (rc == NGX_ERROR) { | |
1678 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1679 } | |
1680 | |
1681 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1682 "upstream rejected request with error %ui", | |
1683 ctx->error); | |
1684 | |
1685 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1686 } | |
1687 | |
1688 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
1689 | |
1690 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
1691 | |
1692 if (rc == NGX_AGAIN) { | |
1693 return NGX_AGAIN; | |
1694 } | |
1695 | |
1696 if (rc == NGX_ERROR) { | |
1697 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1698 } | |
1699 | |
1700 /* | |
1701 * If stream_id is lower than one we use, our | |
1702 * request won't be processed and needs to be retried. | |
1703 * If stream_id is greater or equal to the one we use, | |
1704 * we can continue normally (except we can't use this | |
1705 * connection for additional requests). If there is | |
1706 * a real error, the connection will be closed. | |
1707 */ | |
1708 | |
1709 if (ctx->stream_id < ctx->id) { | |
1710 | |
1711 /* TODO: we can retry non-idempotent requests */ | |
1712 | |
1713 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1714 "upstream sent goaway with error %ui", | |
1715 ctx->error); | |
1716 | |
1717 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1718 } | |
1719 | |
7872
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
1720 ctx->goaway = 1; |
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
1721 |
7233 | 1722 continue; |
1723 } | |
1724 | |
1725 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
1726 | |
1727 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
1728 | |
1729 if (rc == NGX_AGAIN) { | |
1730 return NGX_AGAIN; | |
1731 } | |
1732 | |
1733 if (rc == NGX_ERROR) { | |
1734 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1735 } | |
1736 | |
1737 if (ctx->in) { | |
1738 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1739 } | |
1740 | |
1741 continue; | |
1742 } | |
1743 | |
1744 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
1745 | |
1746 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
1747 | |
1748 if (rc == NGX_AGAIN) { | |
1749 return NGX_AGAIN; | |
1750 } | |
1751 | |
1752 if (rc == NGX_ERROR) { | |
1753 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1754 } | |
1755 | |
1756 if (ctx->in) { | |
1757 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1758 } | |
1759 | |
1760 continue; | |
1761 } | |
1762 | |
1763 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
1764 | |
1765 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
1766 | |
1767 if (rc == NGX_AGAIN) { | |
1768 return NGX_AGAIN; | |
1769 } | |
1770 | |
1771 if (rc == NGX_ERROR) { | |
1772 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1773 } | |
1774 | |
1775 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
1776 continue; | |
1777 } | |
1778 | |
1779 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
1780 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1781 "upstream sent unexpected push promise frame"); | |
1782 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1783 } | |
1784 | |
1785 if (ctx->type != NGX_HTTP_V2_HEADERS_FRAME | |
1786 && ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME) | |
1787 { | |
1788 /* priority, unknown frames */ | |
1789 | |
1790 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
1791 ctx->rest -= b->last - b->pos; | |
1792 b->pos = b->last; | |
1793 return NGX_AGAIN; | |
1794 } | |
1795 | |
1796 b->pos += ctx->rest; | |
1797 ctx->rest = 0; | |
1798 ctx->state = ngx_http_grpc_st_start; | |
1799 | |
1800 continue; | |
1801 } | |
1802 | |
1803 /* headers */ | |
1804 | |
1805 for ( ;; ) { | |
1806 | |
1807 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
1808 | |
1809 if (rc == NGX_AGAIN) { | |
1810 break; | |
1811 } | |
1812 | |
1813 if (rc == NGX_OK) { | |
1814 | |
1815 /* a header line has been parsed successfully */ | |
1816 | |
1817 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1818 "grpc header: \"%V: %V\"", | |
1819 &ctx->name, &ctx->value); | |
1820 | |
1821 if (ctx->name.len && ctx->name.data[0] == ':') { | |
1822 | |
1823 if (ctx->name.len != sizeof(":status") - 1 | |
1824 || ngx_strncmp(ctx->name.data, ":status", | |
1825 sizeof(":status") - 1) | |
1826 != 0) | |
1827 { | |
1828 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1829 "upstream sent invalid header \"%V: %V\"", | |
1830 &ctx->name, &ctx->value); | |
1831 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1832 } | |
1833 | |
1834 if (ctx->status) { | |
1835 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1836 "upstream sent duplicate :status header"); | |
1837 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1838 } | |
1839 | |
1840 status_line = &ctx->value; | |
1841 | |
1842 if (status_line->len != 3) { | |
1843 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1844 "upstream sent invalid :status \"%V\"", | |
1845 status_line); | |
1846 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1847 } | |
1848 | |
1849 status = ngx_atoi(status_line->data, 3); | |
1850 | |
1851 if (status == NGX_ERROR) { | |
1852 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1853 "upstream sent invalid :status \"%V\"", | |
1854 status_line); | |
1855 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1856 } | |
1857 | |
1858 if (status < NGX_HTTP_OK) { | |
1859 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1860 "upstream sent unexpected :status \"%V\"", | |
1861 status_line); | |
1862 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1863 } | |
1864 | |
1865 u->headers_in.status_n = status; | |
1866 | |
1867 if (u->state && u->state->status == 0) { | |
1868 u->state->status = status; | |
1869 } | |
1870 | |
1871 ctx->status = 1; | |
1872 | |
1873 continue; | |
1874 | |
1875 } else if (!ctx->status) { | |
1876 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1877 "upstream sent no :status header"); | |
1878 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1879 } | |
1880 | |
1881 h = ngx_list_push(&u->headers_in.headers); | |
1882 if (h == NULL) { | |
1883 return NGX_ERROR; | |
1884 } | |
1885 | |
1886 h->key = ctx->name; | |
1887 h->value = ctx->value; | |
1888 h->lowcase_key = h->key.data; | |
1889 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
1890 | |
1891 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash, | |
1892 h->lowcase_key, h->key.len); | |
1893 | |
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|
1894 if (hh) { |
2bf7792c262e
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1895 rc = hh->handler(r, h, hh->offset); |
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|
1896 |
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1897 if (rc != NGX_OK) { |
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1898 return rc; |
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|
1899 } |
7233 | 1900 } |
1901 | |
1902 continue; | |
1903 } | |
1904 | |
1905 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
1906 | |
1907 /* a whole header has been parsed successfully */ | |
1908 | |
1909 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
1910 "grpc header done"); | |
1911 | |
7235
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1912 if (ctx->end_stream) { |
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1913 u->headers_in.content_length_n = 0; |
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1914 |
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|
1915 if (ctx->in == NULL |
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|
1916 && ctx->out == NULL |
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|
1917 && ctx->output_closed |
7350
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|
1918 && !ctx->output_blocked |
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|
1919 && !ctx->goaway |
7235
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|
1920 && b->last == b->pos) |
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|
1921 { |
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|
1922 u->keepalive = 1; |
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|
1923 } |
7233 | 1924 } |
1925 | |
1926 return NGX_OK; | |
1927 } | |
1928 | |
1929 /* there was error while a header line parsing */ | |
1930 | |
1931 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
1932 "upstream sent invalid header"); | |
1933 | |
1934 return NGX_HTTP_UPSTREAM_INVALID_HEADER; | |
1935 } | |
1936 | |
1937 /* rc == NGX_AGAIN */ | |
1938 | |
1939 if (ctx->rest == 0) { | |
1940 ctx->state = ngx_http_grpc_st_start; | |
1941 continue; | |
1942 } | |
1943 | |
1944 return NGX_AGAIN; | |
1945 } | |
1946 } | |
1947 | |
1948 | |
1949 static ngx_int_t | |
1950 ngx_http_grpc_filter_init(void *data) | |
1951 { | |
1952 ngx_http_grpc_ctx_t *ctx = data; | |
1953 | |
1954 ngx_http_request_t *r; | |
1955 ngx_http_upstream_t *u; | |
1956 | |
1957 r = ctx->request; | |
1958 u = r->upstream; | |
1959 | |
7680
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|
1960 if (u->headers_in.status_n == NGX_HTTP_NO_CONTENT |
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|
1961 || u->headers_in.status_n == NGX_HTTP_NOT_MODIFIED |
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|
1962 || r->method == NGX_HTTP_HEAD) |
39501ce97e29
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|
1963 { |
39501ce97e29
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|
1964 ctx->length = 0; |
39501ce97e29
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|
1965 |
39501ce97e29
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|
1966 } else { |
39501ce97e29
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|
1967 ctx->length = u->headers_in.content_length_n; |
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|
1968 } |
7233 | 1969 |
1970 if (ctx->end_stream) { | |
7680
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parents:
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diff
changeset
|
1971 |
39501ce97e29
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|
1972 if (ctx->length > 0) { |
39501ce97e29
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diff
changeset
|
1973 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
39501ce97e29
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parents:
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diff
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|
1974 "upstream prematurely closed stream"); |
39501ce97e29
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|
1975 return NGX_ERROR; |
39501ce97e29
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Maxim Dounin <mdounin@mdounin.ru>
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|
1976 } |
39501ce97e29
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diff
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|
1977 |
7233 | 1978 u->length = 0; |
7746
88eca63261c3
gRPC: RST_STREAM(NO_ERROR) handling after "trailer only" responses.
Pavel Pautov <p.pautov@f5.com>
parents:
7736
diff
changeset
|
1979 ctx->done = 1; |
7680
39501ce97e29
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|
1980 |
39501ce97e29
gRPC: generate error when response size is wrong.
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|
1981 } else { |
39501ce97e29
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|
1982 u->length = 1; |
7233 | 1983 } |
1984 | |
1985 return NGX_OK; | |
1986 } | |
1987 | |
1988 | |
1989 static ngx_int_t | |
1990 ngx_http_grpc_filter(void *data, ssize_t bytes) | |
1991 { | |
1992 ngx_http_grpc_ctx_t *ctx = data; | |
1993 | |
1994 ngx_int_t rc; | |
1995 ngx_buf_t *b, *buf; | |
1996 ngx_chain_t *cl, **ll; | |
1997 ngx_table_elt_t *h; | |
1998 ngx_http_request_t *r; | |
1999 ngx_http_upstream_t *u; | |
2000 | |
2001 r = ctx->request; | |
2002 u = r->upstream; | |
2003 b = &u->buffer; | |
2004 | |
2005 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2006 "grpc filter bytes:%z", bytes); | |
2007 | |
2008 b->pos = b->last; | |
2009 b->last += bytes; | |
2010 | |
2011 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) { | |
2012 ll = &cl->next; | |
2013 } | |
2014 | |
2015 for ( ;; ) { | |
2016 | |
2017 if (ctx->state < ngx_http_grpc_st_payload) { | |
2018 | |
2019 rc = ngx_http_grpc_parse_frame(r, ctx, b); | |
2020 | |
2021 if (rc == NGX_AGAIN) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
2022 |
f6047a579ca1
gRPC: improved keepalive handling.
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7321
diff
changeset
|
2023 if (ctx->done) { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2024 |
7680
39501ce97e29
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diff
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|
2025 if (ctx->length > 0) { |
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2026 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2027 "upstream prematurely closed stream"); |
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2028 return NGX_ERROR; |
39501ce97e29
gRPC: generate error when response size is wrong.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7647
diff
changeset
|
2029 } |
39501ce97e29
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2030 |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2031 /* |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2032 * We have finished parsing the response and the |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2033 * remaining control frames. If there are unsent |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2034 * control frames, post a write event to send them. |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2035 */ |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2036 |
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
2037 if (ctx->out) { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2038 ngx_post_event(u->peer.connection->write, |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2039 &ngx_posted_events); |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2040 return NGX_AGAIN; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2041 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2042 |
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
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changeset
|
2043 u->length = 0; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2044 |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2045 if (ctx->in == NULL |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
2046 && ctx->output_closed |
7350
67c6cb7f477c
gRPC: disabled keepalive when sending control frames was blocked.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7349
diff
changeset
|
2047 && !ctx->output_blocked |
7872
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
2048 && !ctx->goaway |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2049 && ctx->state == ngx_http_grpc_st_start) |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2050 { |
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
2051 u->keepalive = 1; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2052 } |
f6047a579ca1
gRPC: improved keepalive handling.
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parents:
7321
diff
changeset
|
2053 |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2054 break; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2055 } |
f6047a579ca1
gRPC: improved keepalive handling.
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changeset
|
2056 |
7233 | 2057 return NGX_AGAIN; |
2058 } | |
2059 | |
2060 if (rc == NGX_ERROR) { | |
2061 return NGX_ERROR; | |
2062 } | |
2063 | |
2064 if ((ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME | |
2065 && !ctx->parsing_headers) | |
2066 || (ctx->type != NGX_HTTP_V2_CONTINUATION_FRAME | |
2067 && ctx->parsing_headers)) | |
2068 { | |
2069 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2070 "upstream sent unexpected http2 frame: %d", | |
2071 ctx->type); | |
2072 return NGX_ERROR; | |
2073 } | |
2074 | |
2075 if (ctx->type == NGX_HTTP_V2_DATA_FRAME) { | |
2076 | |
2077 if (ctx->stream_id != ctx->id) { | |
2078 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2079 "upstream sent data frame " | |
2080 "for unknown stream %ui", | |
2081 ctx->stream_id); | |
2082 return NGX_ERROR; | |
2083 } | |
2084 | |
2085 if (ctx->rest > ctx->recv_window) { | |
2086 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2087 "upstream violated stream flow control, " | |
2088 "received %uz data frame with window %uz", | |
2089 ctx->rest, ctx->recv_window); | |
2090 return NGX_ERROR; | |
2091 } | |
2092 | |
2093 if (ctx->rest > ctx->connection->recv_window) { | |
2094 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2095 "upstream violated connection flow control, " | |
2096 "received %uz data frame with window %uz", | |
2097 ctx->rest, ctx->connection->recv_window); | |
2098 return NGX_ERROR; | |
2099 } | |
2100 | |
2101 ctx->recv_window -= ctx->rest; | |
2102 ctx->connection->recv_window -= ctx->rest; | |
2103 | |
2104 if (ctx->connection->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4 | |
2105 || ctx->recv_window < NGX_HTTP_V2_MAX_WINDOW / 4) | |
2106 { | |
2107 if (ngx_http_grpc_send_window_update(r, ctx) != NGX_OK) { | |
2108 return NGX_ERROR; | |
2109 } | |
2110 | |
2111 ngx_post_event(u->peer.connection->write, | |
2112 &ngx_posted_events); | |
2113 } | |
2114 } | |
2115 | |
2116 if (ctx->stream_id && ctx->stream_id != ctx->id) { | |
2117 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2118 "upstream sent frame for unknown stream %ui", | |
2119 ctx->stream_id); | |
2120 return NGX_ERROR; | |
2121 } | |
2122 | |
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2123 if (ctx->stream_id && ctx->done |
7647
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2124 && ctx->type != NGX_HTTP_V2_RST_STREAM_FRAME |
716eddd74bc2
gRPC: WINDOW_UPDATE after END_STREAM handling (ticket #1797).
Ruslan Ermilov <ru@nginx.com>
parents:
7646
diff
changeset
|
2125 && ctx->type != NGX_HTTP_V2_WINDOW_UPDATE_FRAME) |
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2126 { |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2127 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2128 "upstream sent frame for closed stream %ui", |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2129 ctx->stream_id); |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2130 return NGX_ERROR; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2131 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2132 |
7233 | 2133 ctx->padding = 0; |
2134 } | |
2135 | |
2136 if (ctx->state == ngx_http_grpc_st_padding) { | |
2137 | |
2138 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2139 ctx->rest -= b->last - b->pos; | |
2140 b->pos = b->last; | |
2141 return NGX_AGAIN; | |
2142 } | |
2143 | |
2144 b->pos += ctx->rest; | |
2145 ctx->rest = 0; | |
2146 ctx->state = ngx_http_grpc_st_start; | |
2147 | |
2148 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2149 ctx->done = 1; |
7233 | 2150 } |
2151 | |
2152 continue; | |
2153 } | |
2154 | |
2155 /* frame payload */ | |
2156 | |
2157 if (ctx->type == NGX_HTTP_V2_RST_STREAM_FRAME) { | |
2158 | |
2159 rc = ngx_http_grpc_parse_rst_stream(r, ctx, b); | |
2160 | |
2161 if (rc == NGX_AGAIN) { | |
2162 return NGX_AGAIN; | |
2163 } | |
2164 | |
2165 if (rc == NGX_ERROR) { | |
2166 return NGX_ERROR; | |
2167 } | |
2168 | |
7646
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2169 if (ctx->error || !ctx->done) { |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2170 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2171 "upstream rejected request with error %ui", |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2172 ctx->error); |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2173 return NGX_ERROR; |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2174 } |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2175 |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2176 if (ctx->rst) { |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2177 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2178 "upstream sent frame for closed stream %ui", |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2179 ctx->stream_id); |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2180 return NGX_ERROR; |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2181 } |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2182 |
2096b21fcd10
gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792).
Ruslan Ermilov <ru@nginx.com>
parents:
7619
diff
changeset
|
2183 ctx->rst = 1; |
7873
0302a4f0b6c4
gRPC: RST_STREAM(NO_ERROR) handling micro-optimization.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7872
diff
changeset
|
2184 |
0302a4f0b6c4
gRPC: RST_STREAM(NO_ERROR) handling micro-optimization.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7872
diff
changeset
|
2185 continue; |
7233 | 2186 } |
2187 | |
2188 if (ctx->type == NGX_HTTP_V2_GOAWAY_FRAME) { | |
2189 | |
2190 rc = ngx_http_grpc_parse_goaway(r, ctx, b); | |
2191 | |
2192 if (rc == NGX_AGAIN) { | |
2193 return NGX_AGAIN; | |
2194 } | |
2195 | |
2196 if (rc == NGX_ERROR) { | |
2197 return NGX_ERROR; | |
2198 } | |
2199 | |
2200 /* | |
2201 * If stream_id is lower than one we use, our | |
2202 * request won't be processed and needs to be retried. | |
2203 * If stream_id is greater or equal to the one we use, | |
2204 * we can continue normally (except we can't use this | |
2205 * connection for additional requests). If there is | |
2206 * a real error, the connection will be closed. | |
2207 */ | |
2208 | |
2209 if (ctx->stream_id < ctx->id) { | |
2210 | |
2211 /* TODO: we can retry non-idempotent requests */ | |
2212 | |
2213 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2214 "upstream sent goaway with error %ui", | |
2215 ctx->error); | |
2216 | |
2217 return NGX_ERROR; | |
2218 } | |
2219 | |
7872
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
2220 ctx->goaway = 1; |
021416fca094
gRPC: handling GOAWAY with a higher last stream identifier.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7833
diff
changeset
|
2221 |
7233 | 2222 continue; |
2223 } | |
2224 | |
2225 if (ctx->type == NGX_HTTP_V2_WINDOW_UPDATE_FRAME) { | |
2226 | |
2227 rc = ngx_http_grpc_parse_window_update(r, ctx, b); | |
2228 | |
2229 if (rc == NGX_AGAIN) { | |
2230 return NGX_AGAIN; | |
2231 } | |
2232 | |
2233 if (rc == NGX_ERROR) { | |
2234 return NGX_ERROR; | |
2235 } | |
2236 | |
2237 if (ctx->in) { | |
2238 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2239 } | |
2240 | |
2241 continue; | |
2242 } | |
2243 | |
2244 if (ctx->type == NGX_HTTP_V2_SETTINGS_FRAME) { | |
2245 | |
2246 rc = ngx_http_grpc_parse_settings(r, ctx, b); | |
2247 | |
2248 if (rc == NGX_AGAIN) { | |
2249 return NGX_AGAIN; | |
2250 } | |
2251 | |
2252 if (rc == NGX_ERROR) { | |
2253 return NGX_ERROR; | |
2254 } | |
2255 | |
2256 if (ctx->in) { | |
2257 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2258 } | |
2259 | |
2260 continue; | |
2261 } | |
2262 | |
2263 if (ctx->type == NGX_HTTP_V2_PING_FRAME) { | |
2264 | |
2265 rc = ngx_http_grpc_parse_ping(r, ctx, b); | |
2266 | |
2267 if (rc == NGX_AGAIN) { | |
2268 return NGX_AGAIN; | |
2269 } | |
2270 | |
2271 if (rc == NGX_ERROR) { | |
2272 return NGX_ERROR; | |
2273 } | |
2274 | |
2275 ngx_post_event(u->peer.connection->write, &ngx_posted_events); | |
2276 continue; | |
2277 } | |
2278 | |
2279 if (ctx->type == NGX_HTTP_V2_PUSH_PROMISE_FRAME) { | |
2280 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2281 "upstream sent unexpected push promise frame"); | |
2282 return NGX_ERROR; | |
2283 } | |
2284 | |
2285 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME | |
2286 || ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) | |
2287 { | |
2288 for ( ;; ) { | |
2289 | |
2290 rc = ngx_http_grpc_parse_header(r, ctx, b); | |
2291 | |
2292 if (rc == NGX_AGAIN) { | |
2293 break; | |
2294 } | |
2295 | |
2296 if (rc == NGX_OK) { | |
2297 | |
2298 /* a header line has been parsed successfully */ | |
2299 | |
2300 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2301 "grpc trailer: \"%V: %V\"", | |
2302 &ctx->name, &ctx->value); | |
2303 | |
2304 if (ctx->name.len && ctx->name.data[0] == ':') { | |
2305 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2306 "upstream sent invalid " | |
2307 "trailer \"%V: %V\"", | |
2308 &ctx->name, &ctx->value); | |
2309 return NGX_ERROR; | |
2310 } | |
2311 | |
2312 h = ngx_list_push(&u->headers_in.trailers); | |
2313 if (h == NULL) { | |
2314 return NGX_ERROR; | |
2315 } | |
2316 | |
2317 h->key = ctx->name; | |
2318 h->value = ctx->value; | |
2319 h->lowcase_key = h->key.data; | |
2320 h->hash = ngx_hash_key(h->key.data, h->key.len); | |
2321 | |
2322 continue; | |
2323 } | |
2324 | |
2325 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { | |
2326 | |
2327 /* a whole header has been parsed successfully */ | |
2328 | |
2329 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2330 "grpc trailer done"); | |
2331 | |
2332 if (ctx->end_stream) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2333 ctx->done = 1; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2334 break; |
7233 | 2335 } |
2336 | |
2337 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2338 "upstream sent trailer without " | |
2339 "end stream flag"); | |
2340 return NGX_ERROR; | |
2341 } | |
2342 | |
2343 /* there was error while a header line parsing */ | |
2344 | |
2345 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2346 "upstream sent invalid trailer"); | |
2347 | |
2348 return NGX_ERROR; | |
2349 } | |
2350 | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2351 if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2352 continue; |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2353 } |
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2354 |
7233 | 2355 /* rc == NGX_AGAIN */ |
2356 | |
2357 if (ctx->rest == 0) { | |
2358 ctx->state = ngx_http_grpc_st_start; | |
2359 continue; | |
2360 } | |
2361 | |
2362 return NGX_AGAIN; | |
2363 } | |
2364 | |
2365 if (ctx->type != NGX_HTTP_V2_DATA_FRAME) { | |
2366 | |
2367 /* priority, unknown frames */ | |
2368 | |
2369 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2370 ctx->rest -= b->last - b->pos; | |
2371 b->pos = b->last; | |
2372 return NGX_AGAIN; | |
2373 } | |
2374 | |
2375 b->pos += ctx->rest; | |
2376 ctx->rest = 0; | |
2377 ctx->state = ngx_http_grpc_st_start; | |
2378 | |
2379 continue; | |
2380 } | |
2381 | |
2382 /* | |
2383 * data frame: | |
2384 * | |
2385 * +---------------+ | |
2386 * |Pad Length? (8)| | |
2387 * +---------------+-----------------------------------------------+ | |
2388 * | Data (*) ... | |
2389 * +---------------------------------------------------------------+ | |
2390 * | Padding (*) ... | |
2391 * +---------------------------------------------------------------+ | |
2392 */ | |
2393 | |
2394 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2395 | |
2396 if (ctx->rest == 0) { | |
2397 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2398 "upstream sent too short http2 frame"); | |
2399 return NGX_ERROR; | |
2400 } | |
2401 | |
2402 if (b->pos == b->last) { | |
2403 return NGX_AGAIN; | |
2404 } | |
2405 | |
2406 ctx->flags &= ~NGX_HTTP_V2_PADDED_FLAG; | |
2407 ctx->padding = *b->pos++; | |
2408 ctx->rest -= 1; | |
2409 | |
2410 if (ctx->padding > ctx->rest) { | |
2411 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2412 "upstream sent http2 frame with too long " | |
2413 "padding: %d in frame %uz", | |
2414 ctx->padding, ctx->rest); | |
2415 return NGX_ERROR; | |
2416 } | |
2417 | |
2418 continue; | |
2419 } | |
2420 | |
2421 if (ctx->rest == ctx->padding) { | |
2422 goto done; | |
2423 } | |
2424 | |
2425 if (b->pos == b->last) { | |
2426 return NGX_AGAIN; | |
2427 } | |
2428 | |
2429 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs); | |
2430 if (cl == NULL) { | |
2431 return NGX_ERROR; | |
2432 } | |
2433 | |
2434 *ll = cl; | |
2435 ll = &cl->next; | |
2436 | |
2437 buf = cl->buf; | |
2438 | |
2439 buf->flush = 1; | |
2440 buf->memory = 1; | |
2441 | |
2442 buf->pos = b->pos; | |
2443 buf->tag = u->output.tag; | |
2444 | |
2445 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2446 "grpc output buf %p", buf->pos); | |
2447 | |
2448 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2449 | |
2450 ctx->rest -= b->last - b->pos; | |
2451 b->pos = b->last; | |
2452 buf->last = b->pos; | |
2453 | |
7803
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2454 if (ctx->length != -1) { |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2455 |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2456 if (buf->last - buf->pos > ctx->length) { |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2457 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2458 "upstream sent response body larger " |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2459 "than indicated content length"); |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2460 return NGX_ERROR; |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2461 } |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2462 |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2463 ctx->length -= buf->last - buf->pos; |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2464 } |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2465 |
7233 | 2466 return NGX_AGAIN; |
2467 } | |
2468 | |
2469 b->pos += ctx->rest - ctx->padding; | |
2470 buf->last = b->pos; | |
2471 ctx->rest = ctx->padding; | |
2472 | |
7803
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2473 if (ctx->length != -1) { |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2474 |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2475 if (buf->last - buf->pos > ctx->length) { |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2476 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2477 "upstream sent response body larger " |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2478 "than indicated content length"); |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2479 return NGX_ERROR; |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2480 } |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2481 |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2482 ctx->length -= buf->last - buf->pos; |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2483 } |
6df9d7df2784
gRPC: fixed handling of padding on DATA frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7787
diff
changeset
|
2484 |
7233 | 2485 done: |
2486 | |
2487 if (ctx->padding) { | |
2488 ctx->state = ngx_http_grpc_st_padding; | |
2489 continue; | |
2490 } | |
2491 | |
2492 ctx->state = ngx_http_grpc_st_start; | |
2493 | |
2494 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
7349
f6047a579ca1
gRPC: improved keepalive handling.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7321
diff
changeset
|
2495 ctx->done = 1; |
7233 | 2496 } |
2497 } | |
2498 | |
2499 return NGX_OK; | |
2500 } | |
2501 | |
2502 | |
2503 static ngx_int_t | |
2504 ngx_http_grpc_parse_frame(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2505 ngx_buf_t *b) | |
2506 { | |
2507 u_char ch, *p; | |
2508 ngx_http_grpc_state_e state; | |
2509 | |
2510 state = ctx->state; | |
2511 | |
2512 for (p = b->pos; p < b->last; p++) { | |
2513 ch = *p; | |
2514 | |
2515 #if 0 | |
2516 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2517 "grpc frame byte: %02Xd, s:%d", ch, state); | |
2518 #endif | |
2519 | |
2520 switch (state) { | |
2521 | |
2522 case ngx_http_grpc_st_start: | |
2523 ctx->rest = ch << 16; | |
2524 state = ngx_http_grpc_st_length_2; | |
2525 break; | |
2526 | |
2527 case ngx_http_grpc_st_length_2: | |
2528 ctx->rest |= ch << 8; | |
2529 state = ngx_http_grpc_st_length_3; | |
2530 break; | |
2531 | |
2532 case ngx_http_grpc_st_length_3: | |
2533 ctx->rest |= ch; | |
2534 | |
2535 if (ctx->rest > NGX_HTTP_V2_DEFAULT_FRAME_SIZE) { | |
2536 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2537 "upstream sent too large http2 frame: %uz", | |
2538 ctx->rest); | |
2539 return NGX_ERROR; | |
2540 } | |
2541 | |
2542 state = ngx_http_grpc_st_type; | |
2543 break; | |
2544 | |
2545 case ngx_http_grpc_st_type: | |
2546 ctx->type = ch; | |
2547 state = ngx_http_grpc_st_flags; | |
2548 break; | |
2549 | |
2550 case ngx_http_grpc_st_flags: | |
2551 ctx->flags = ch; | |
2552 state = ngx_http_grpc_st_stream_id; | |
2553 break; | |
2554 | |
2555 case ngx_http_grpc_st_stream_id: | |
2556 ctx->stream_id = (ch & 0x7f) << 24; | |
2557 state = ngx_http_grpc_st_stream_id_2; | |
2558 break; | |
2559 | |
2560 case ngx_http_grpc_st_stream_id_2: | |
2561 ctx->stream_id |= ch << 16; | |
2562 state = ngx_http_grpc_st_stream_id_3; | |
2563 break; | |
2564 | |
2565 case ngx_http_grpc_st_stream_id_3: | |
2566 ctx->stream_id |= ch << 8; | |
2567 state = ngx_http_grpc_st_stream_id_4; | |
2568 break; | |
2569 | |
2570 case ngx_http_grpc_st_stream_id_4: | |
2571 ctx->stream_id |= ch; | |
2572 | |
2573 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2574 "grpc frame: %d, len: %uz, f:%d, i:%ui", | |
2575 ctx->type, ctx->rest, ctx->flags, ctx->stream_id); | |
2576 | |
2577 b->pos = p + 1; | |
2578 | |
2579 ctx->state = ngx_http_grpc_st_payload; | |
2580 ctx->frame_state = 0; | |
2581 | |
2582 return NGX_OK; | |
2583 | |
2584 /* suppress warning */ | |
2585 case ngx_http_grpc_st_payload: | |
2586 case ngx_http_grpc_st_padding: | |
2587 break; | |
2588 } | |
2589 } | |
2590 | |
2591 b->pos = p; | |
2592 ctx->state = state; | |
2593 | |
2594 return NGX_AGAIN; | |
2595 } | |
2596 | |
2597 | |
2598 static ngx_int_t | |
2599 ngx_http_grpc_parse_header(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2600 ngx_buf_t *b) | |
2601 { | |
2602 u_char ch, *p, *last; | |
2603 size_t min; | |
2604 ngx_int_t rc; | |
2605 enum { | |
2606 sw_start = 0, | |
2607 sw_padding_length, | |
2608 sw_dependency, | |
2609 sw_dependency_2, | |
2610 sw_dependency_3, | |
2611 sw_dependency_4, | |
2612 sw_weight, | |
2613 sw_fragment, | |
2614 sw_padding | |
2615 } state; | |
2616 | |
2617 state = ctx->frame_state; | |
2618 | |
2619 if (state == sw_start) { | |
2620 | |
2621 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2622 "grpc parse header: start"); | |
2623 | |
2624 if (ctx->type == NGX_HTTP_V2_HEADERS_FRAME) { | |
2625 ctx->parsing_headers = 1; | |
2626 ctx->fragment_state = 0; | |
2627 | |
2628 min = (ctx->flags & NGX_HTTP_V2_PADDED_FLAG ? 1 : 0) | |
2629 + (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG ? 5 : 0); | |
2630 | |
2631 if (ctx->rest < min) { | |
2632 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2633 "upstream sent headers frame " | |
2634 "with invalid length: %uz", | |
2635 ctx->rest); | |
2636 return NGX_ERROR; | |
2637 } | |
2638 | |
2639 if (ctx->flags & NGX_HTTP_V2_END_STREAM_FLAG) { | |
2640 ctx->end_stream = 1; | |
2641 } | |
2642 | |
2643 if (ctx->flags & NGX_HTTP_V2_PADDED_FLAG) { | |
2644 state = sw_padding_length; | |
2645 | |
2646 } else if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2647 state = sw_dependency; | |
2648 | |
2649 } else { | |
2650 state = sw_fragment; | |
2651 } | |
2652 | |
2653 } else if (ctx->type == NGX_HTTP_V2_CONTINUATION_FRAME) { | |
2654 state = sw_fragment; | |
2655 } | |
2656 | |
2657 ctx->padding = 0; | |
7242
25a4353633a0
gRPC: fixed missing state save in frame header parsing.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7240
diff
changeset
|
2658 ctx->frame_state = state; |
7233 | 2659 } |
2660 | |
2661 if (state < sw_fragment) { | |
2662 | |
2663 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2664 last = b->last; | |
2665 | |
2666 } else { | |
2667 last = b->pos + ctx->rest; | |
2668 } | |
2669 | |
2670 for (p = b->pos; p < last; p++) { | |
2671 ch = *p; | |
2672 | |
2673 #if 0 | |
2674 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2675 "grpc header byte: %02Xd s:%d", ch, state); | |
2676 #endif | |
2677 | |
2678 /* | |
2679 * headers frame: | |
2680 * | |
2681 * +---------------+ | |
2682 * |Pad Length? (8)| | |
2683 * +-+-------------+----------------------------------------------+ | |
2684 * |E| Stream Dependency? (31) | | |
2685 * +-+-------------+----------------------------------------------+ | |
2686 * | Weight? (8) | | |
2687 * +-+-------------+----------------------------------------------+ | |
2688 * | Header Block Fragment (*) ... | |
2689 * +--------------------------------------------------------------+ | |
2690 * | Padding (*) ... | |
2691 * +--------------------------------------------------------------+ | |
2692 */ | |
2693 | |
2694 switch (state) { | |
2695 | |
2696 case sw_padding_length: | |
2697 | |
2698 ctx->padding = ch; | |
2699 | |
2700 if (ctx->flags & NGX_HTTP_V2_PRIORITY_FLAG) { | |
2701 state = sw_dependency; | |
2702 break; | |
2703 } | |
2704 | |
2705 goto fragment; | |
2706 | |
2707 case sw_dependency: | |
2708 state = sw_dependency_2; | |
2709 break; | |
2710 | |
2711 case sw_dependency_2: | |
2712 state = sw_dependency_3; | |
2713 break; | |
2714 | |
2715 case sw_dependency_3: | |
2716 state = sw_dependency_4; | |
2717 break; | |
2718 | |
2719 case sw_dependency_4: | |
2720 state = sw_weight; | |
2721 break; | |
2722 | |
2723 case sw_weight: | |
2724 goto fragment; | |
2725 | |
2726 /* suppress warning */ | |
2727 case sw_start: | |
2728 case sw_fragment: | |
2729 case sw_padding: | |
2730 break; | |
2731 } | |
2732 } | |
2733 | |
2734 ctx->rest -= p - b->pos; | |
2735 b->pos = p; | |
2736 | |
2737 ctx->frame_state = state; | |
2738 return NGX_AGAIN; | |
2739 | |
2740 fragment: | |
2741 | |
2742 p++; | |
2743 ctx->rest -= p - b->pos; | |
2744 b->pos = p; | |
2745 | |
2746 if (ctx->padding > ctx->rest) { | |
2747 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2748 "upstream sent http2 frame with too long " | |
2749 "padding: %d in frame %uz", | |
2750 ctx->padding, ctx->rest); | |
2751 return NGX_ERROR; | |
2752 } | |
2753 | |
2754 state = sw_fragment; | |
2755 ctx->frame_state = state; | |
2756 } | |
2757 | |
2758 if (state == sw_fragment) { | |
2759 | |
2760 rc = ngx_http_grpc_parse_fragment(r, ctx, b); | |
2761 | |
2762 if (rc == NGX_AGAIN) { | |
2763 return NGX_AGAIN; | |
2764 } | |
2765 | |
2766 if (rc == NGX_ERROR) { | |
2767 return NGX_ERROR; | |
2768 } | |
2769 | |
2770 if (rc == NGX_OK) { | |
2771 return NGX_OK; | |
2772 } | |
2773 | |
2774 /* rc == NGX_DONE */ | |
2775 | |
2776 state = sw_padding; | |
2777 ctx->frame_state = state; | |
2778 } | |
2779 | |
2780 if (state == sw_padding) { | |
2781 | |
2782 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
2783 | |
2784 ctx->rest -= b->last - b->pos; | |
2785 b->pos = b->last; | |
2786 | |
2787 return NGX_AGAIN; | |
2788 } | |
2789 | |
2790 b->pos += ctx->rest; | |
2791 ctx->rest = 0; | |
2792 | |
2793 ctx->state = ngx_http_grpc_st_start; | |
2794 | |
2795 if (ctx->flags & NGX_HTTP_V2_END_HEADERS_FLAG) { | |
2796 | |
2797 if (ctx->fragment_state) { | |
2798 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2799 "upstream sent truncated http2 header"); | |
2800 return NGX_ERROR; | |
2801 } | |
2802 | |
2803 ctx->parsing_headers = 0; | |
2804 | |
2805 return NGX_HTTP_PARSE_HEADER_DONE; | |
2806 } | |
2807 | |
2808 return NGX_AGAIN; | |
2809 } | |
2810 | |
2811 /* unreachable */ | |
2812 | |
2813 return NGX_ERROR; | |
2814 } | |
2815 | |
2816 | |
2817 static ngx_int_t | |
2818 ngx_http_grpc_parse_fragment(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
2819 ngx_buf_t *b) | |
2820 { | |
2821 u_char ch, *p, *last; | |
2822 size_t size; | |
2823 ngx_uint_t index, size_update; | |
2824 enum { | |
2825 sw_start = 0, | |
2826 sw_index, | |
2827 sw_name_length, | |
2828 sw_name_length_2, | |
2829 sw_name_length_3, | |
2830 sw_name_length_4, | |
2831 sw_name, | |
2832 sw_name_bytes, | |
2833 sw_value_length, | |
2834 sw_value_length_2, | |
2835 sw_value_length_3, | |
2836 sw_value_length_4, | |
2837 sw_value, | |
2838 sw_value_bytes | |
2839 } state; | |
2840 | |
2841 /* header block fragment */ | |
2842 | |
2843 #if 0 | |
2844 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2845 "grpc header fragment %p:%p rest:%uz", | |
2846 b->pos, b->last, ctx->rest); | |
2847 #endif | |
2848 | |
2849 if (b->last - b->pos < (ssize_t) ctx->rest - ctx->padding) { | |
2850 last = b->last; | |
2851 | |
2852 } else { | |
2853 last = b->pos + ctx->rest - ctx->padding; | |
2854 } | |
2855 | |
2856 state = ctx->fragment_state; | |
2857 | |
2858 for (p = b->pos; p < last; p++) { | |
2859 ch = *p; | |
2860 | |
2861 #if 0 | |
2862 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2863 "grpc header byte: %02Xd s:%d", ch, state); | |
2864 #endif | |
2865 | |
2866 switch (state) { | |
2867 | |
2868 case sw_start: | |
2869 ctx->index = 0; | |
2870 | |
2871 if ((ch & 0x80) == 0x80) { | |
2872 /* | |
2873 * indexed header: | |
2874 * | |
2875 * 0 1 2 3 4 5 6 7 | |
2876 * +---+---+---+---+---+---+---+---+ | |
2877 * | 1 | Index (7+) | | |
2878 * +---+---------------------------+ | |
2879 */ | |
2880 | |
2881 index = ch & ~0x80; | |
2882 | |
2883 if (index == 0 || index > 61) { | |
2884 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2885 "upstream sent invalid http2 " | |
2886 "table index: %ui", index); | |
2887 return NGX_ERROR; | |
2888 } | |
2889 | |
2890 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2891 "grpc indexed header: %ui", index); | |
2892 | |
2893 ctx->index = index; | |
2894 ctx->literal = 0; | |
2895 | |
2896 goto done; | |
2897 | |
2898 } else if ((ch & 0xc0) == 0x40) { | |
2899 /* | |
2900 * literal header with incremental indexing: | |
2901 * | |
2902 * 0 1 2 3 4 5 6 7 | |
2903 * +---+---+---+---+---+---+---+---+ | |
2904 * | 0 | 1 | Index (6+) | | |
2905 * +---+---+-----------------------+ | |
2906 * | H | Value Length (7+) | | |
2907 * +---+---------------------------+ | |
2908 * | Value String (Length octets) | | |
2909 * +-------------------------------+ | |
2910 * | |
2911 * 0 1 2 3 4 5 6 7 | |
2912 * +---+---+---+---+---+---+---+---+ | |
2913 * | 0 | 1 | 0 | | |
2914 * +---+---+-----------------------+ | |
2915 * | H | Name Length (7+) | | |
2916 * +---+---------------------------+ | |
2917 * | Name String (Length octets) | | |
2918 * +---+---------------------------+ | |
2919 * | H | Value Length (7+) | | |
2920 * +---+---------------------------+ | |
2921 * | Value String (Length octets) | | |
2922 * +-------------------------------+ | |
2923 */ | |
2924 | |
2925 index = ch & ~0xc0; | |
2926 | |
2927 if (index > 61) { | |
2928 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2929 "upstream sent invalid http2 " | |
2930 "table index: %ui", index); | |
2931 return NGX_ERROR; | |
2932 } | |
2933 | |
2934 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2935 "grpc literal header: %ui", index); | |
2936 | |
2937 if (index == 0) { | |
2938 state = sw_name_length; | |
2939 break; | |
2940 } | |
2941 | |
2942 ctx->index = index; | |
2943 ctx->literal = 1; | |
2944 | |
2945 state = sw_value_length; | |
2946 break; | |
2947 | |
2948 } else if ((ch & 0xe0) == 0x20) { | |
2949 /* | |
2950 * dynamic table size update: | |
2951 * | |
2952 * 0 1 2 3 4 5 6 7 | |
2953 * +---+---+---+---+---+---+---+---+ | |
2954 * | 0 | 0 | 1 | Max size (5+) | | |
2955 * +---+---------------------------+ | |
2956 */ | |
2957 | |
2958 size_update = ch & ~0xe0; | |
2959 | |
2960 if (size_update > 0) { | |
2961 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
2962 "upstream sent invalid http2 " | |
2963 "dynamic table size update: %ui", | |
2964 size_update); | |
2965 return NGX_ERROR; | |
2966 } | |
2967 | |
2968 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
2969 "grpc table size update: %ui", size_update); | |
2970 | |
2971 break; | |
2972 | |
2973 } else if ((ch & 0xf0) == 0x10) { | |
2974 /* | |
2975 * literal header field never indexed: | |
2976 * | |
2977 * 0 1 2 3 4 5 6 7 | |
2978 * +---+---+---+---+---+---+---+---+ | |
2979 * | 0 | 0 | 0 | 1 | Index (4+) | | |
2980 * +---+---+-----------------------+ | |
2981 * | H | Value Length (7+) | | |
2982 * +---+---------------------------+ | |
2983 * | Value String (Length octets) | | |
2984 * +-------------------------------+ | |
2985 * | |
2986 * 0 1 2 3 4 5 6 7 | |
2987 * +---+---+---+---+---+---+---+---+ | |
2988 * | 0 | 0 | 0 | 1 | 0 | | |
2989 * +---+---+-----------------------+ | |
2990 * | H | Name Length (7+) | | |
2991 * +---+---------------------------+ | |
2992 * | Name String (Length octets) | | |
2993 * +---+---------------------------+ | |
2994 * | H | Value Length (7+) | | |
2995 * +---+---------------------------+ | |
2996 * | Value String (Length octets) | | |
2997 * +-------------------------------+ | |
2998 */ | |
2999 | |
3000 index = ch & ~0xf0; | |
3001 | |
3002 if (index == 0x0f) { | |
3003 ctx->index = index; | |
3004 ctx->literal = 1; | |
3005 state = sw_index; | |
3006 break; | |
3007 } | |
3008 | |
3009 if (index == 0) { | |
3010 state = sw_name_length; | |
3011 break; | |
3012 } | |
3013 | |
3014 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3015 "grpc literal header never indexed: %ui", | |
3016 index); | |
3017 | |
3018 ctx->index = index; | |
3019 ctx->literal = 1; | |
3020 | |
3021 state = sw_value_length; | |
3022 break; | |
3023 | |
3024 } else if ((ch & 0xf0) == 0x00) { | |
3025 /* | |
3026 * literal header field without indexing: | |
3027 * | |
3028 * 0 1 2 3 4 5 6 7 | |
3029 * +---+---+---+---+---+---+---+---+ | |
3030 * | 0 | 0 | 0 | 0 | Index (4+) | | |
3031 * +---+---+-----------------------+ | |
3032 * | H | Value Length (7+) | | |
3033 * +---+---------------------------+ | |
3034 * | Value String (Length octets) | | |
3035 * +-------------------------------+ | |
3036 * | |
3037 * 0 1 2 3 4 5 6 7 | |
3038 * +---+---+---+---+---+---+---+---+ | |
3039 * | 0 | 0 | 0 | 0 | 0 | | |
3040 * +---+---+-----------------------+ | |
3041 * | H | Name Length (7+) | | |
3042 * +---+---------------------------+ | |
3043 * | Name String (Length octets) | | |
3044 * +---+---------------------------+ | |
3045 * | H | Value Length (7+) | | |
3046 * +---+---------------------------+ | |
3047 * | Value String (Length octets) | | |
3048 * +-------------------------------+ | |
3049 */ | |
3050 | |
3051 index = ch & ~0xf0; | |
3052 | |
3053 if (index == 0x0f) { | |
3054 ctx->index = index; | |
3055 ctx->literal = 1; | |
3056 state = sw_index; | |
3057 break; | |
3058 } | |
3059 | |
3060 if (index == 0) { | |
3061 state = sw_name_length; | |
3062 break; | |
3063 } | |
3064 | |
3065 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3066 "grpc literal header without indexing: %ui", | |
3067 index); | |
3068 | |
3069 ctx->index = index; | |
3070 ctx->literal = 1; | |
3071 | |
3072 state = sw_value_length; | |
3073 break; | |
3074 } | |
3075 | |
3076 /* not reached */ | |
3077 | |
3078 return NGX_ERROR; | |
3079 | |
3080 case sw_index: | |
3081 ctx->index = ctx->index + (ch & ~0x80); | |
3082 | |
3083 if (ch & 0x80) { | |
3084 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3085 "upstream sent http2 table index " | |
3086 "with continuation flag"); | |
3087 return NGX_ERROR; | |
3088 } | |
3089 | |
3090 if (ctx->index > 61) { | |
3091 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3092 "upstream sent invalid http2 " | |
3093 "table index: %ui", ctx->index); | |
3094 return NGX_ERROR; | |
3095 } | |
3096 | |
3097 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3098 "grpc header index: %ui", ctx->index); | |
3099 | |
3100 state = sw_value_length; | |
3101 break; | |
3102 | |
3103 case sw_name_length: | |
3104 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3105 ctx->field_length = ch & ~0x80; | |
3106 | |
3107 if (ctx->field_length == 0x7f) { | |
3108 state = sw_name_length_2; | |
3109 break; | |
3110 } | |
3111 | |
3112 if (ctx->field_length == 0) { | |
3113 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3114 "upstream sent zero http2 " | |
3115 "header name length"); | |
3116 return NGX_ERROR; | |
3117 } | |
3118 | |
3119 state = sw_name; | |
3120 break; | |
3121 | |
3122 case sw_name_length_2: | |
3123 ctx->field_length += ch & ~0x80; | |
3124 | |
3125 if (ch & 0x80) { | |
3126 state = sw_name_length_3; | |
3127 break; | |
3128 } | |
3129 | |
3130 state = sw_name; | |
3131 break; | |
3132 | |
3133 case sw_name_length_3: | |
3134 ctx->field_length += (ch & ~0x80) << 7; | |
3135 | |
3136 if (ch & 0x80) { | |
3137 state = sw_name_length_4; | |
3138 break; | |
3139 } | |
3140 | |
3141 state = sw_name; | |
3142 break; | |
3143 | |
3144 case sw_name_length_4: | |
3145 ctx->field_length += (ch & ~0x80) << 14; | |
3146 | |
3147 if (ch & 0x80) { | |
3148 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3149 "upstream sent too large http2 " | |
3150 "header name length"); | |
3151 return NGX_ERROR; | |
3152 } | |
3153 | |
3154 state = sw_name; | |
3155 break; | |
3156 | |
3157 case sw_name: | |
3158 ctx->name.len = ctx->field_huffman ? | |
3159 ctx->field_length * 8 / 5 : ctx->field_length; | |
3160 | |
3161 ctx->name.data = ngx_pnalloc(r->pool, ctx->name.len + 1); | |
3162 if (ctx->name.data == NULL) { | |
3163 return NGX_ERROR; | |
3164 } | |
3165 | |
3166 ctx->field_end = ctx->name.data; | |
3167 ctx->field_rest = ctx->field_length; | |
3168 ctx->field_state = 0; | |
3169 | |
3170 state = sw_name_bytes; | |
3171 | |
3172 /* fall through */ | |
3173 | |
3174 case sw_name_bytes: | |
3175 | |
3176 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3177 "grpc name: len:%uz h:%d last:%uz, rest:%uz", | |
3178 ctx->field_length, | |
3179 ctx->field_huffman, | |
3180 last - p, | |
3181 ctx->rest - (p - b->pos)); | |
3182 | |
3183 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3184 ctx->field_rest -= size; | |
3185 | |
3186 if (ctx->field_huffman) { | |
7977
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3187 if (ngx_http_huff_decode(&ctx->field_state, p, size, |
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3188 &ctx->field_end, |
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3189 ctx->field_rest == 0, |
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3190 r->connection->log) |
7233 | 3191 != NGX_OK) |
3192 { | |
3193 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3194 "upstream sent invalid encoded header"); | |
3195 return NGX_ERROR; | |
3196 } | |
3197 | |
3198 ctx->name.len = ctx->field_end - ctx->name.data; | |
3199 ctx->name.data[ctx->name.len] = '\0'; | |
3200 | |
3201 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3202 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3203 ctx->name.data[ctx->name.len] = '\0'; |
3204 } | |
3205 | |
3206 p += size - 1; | |
3207 | |
3208 if (ctx->field_rest == 0) { | |
3209 state = sw_value_length; | |
3210 } | |
3211 | |
3212 break; | |
3213 | |
3214 case sw_value_length: | |
3215 ctx->field_huffman = ch & 0x80 ? 1 : 0; | |
3216 ctx->field_length = ch & ~0x80; | |
3217 | |
3218 if (ctx->field_length == 0x7f) { | |
3219 state = sw_value_length_2; | |
3220 break; | |
3221 } | |
3222 | |
3223 if (ctx->field_length == 0) { | |
3224 ngx_str_set(&ctx->value, ""); | |
3225 goto done; | |
3226 } | |
3227 | |
3228 state = sw_value; | |
3229 break; | |
3230 | |
3231 case sw_value_length_2: | |
3232 ctx->field_length += ch & ~0x80; | |
3233 | |
3234 if (ch & 0x80) { | |
3235 state = sw_value_length_3; | |
3236 break; | |
3237 } | |
3238 | |
3239 state = sw_value; | |
3240 break; | |
3241 | |
3242 case sw_value_length_3: | |
3243 ctx->field_length += (ch & ~0x80) << 7; | |
3244 | |
3245 if (ch & 0x80) { | |
3246 state = sw_value_length_4; | |
3247 break; | |
3248 } | |
3249 | |
3250 state = sw_value; | |
3251 break; | |
3252 | |
3253 case sw_value_length_4: | |
3254 ctx->field_length += (ch & ~0x80) << 14; | |
3255 | |
3256 if (ch & 0x80) { | |
3257 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3258 "upstream sent too large http2 " | |
3259 "header value length"); | |
3260 return NGX_ERROR; | |
3261 } | |
3262 | |
3263 state = sw_value; | |
3264 break; | |
3265 | |
3266 case sw_value: | |
3267 ctx->value.len = ctx->field_huffman ? | |
3268 ctx->field_length * 8 / 5 : ctx->field_length; | |
3269 | |
3270 ctx->value.data = ngx_pnalloc(r->pool, ctx->value.len + 1); | |
3271 if (ctx->value.data == NULL) { | |
3272 return NGX_ERROR; | |
3273 } | |
3274 | |
3275 ctx->field_end = ctx->value.data; | |
3276 ctx->field_rest = ctx->field_length; | |
3277 ctx->field_state = 0; | |
3278 | |
3279 state = sw_value_bytes; | |
3280 | |
3281 /* fall through */ | |
3282 | |
3283 case sw_value_bytes: | |
3284 | |
3285 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3286 "grpc value: len:%uz h:%d last:%uz, rest:%uz", | |
3287 ctx->field_length, | |
3288 ctx->field_huffman, | |
3289 last - p, | |
3290 ctx->rest - (p - b->pos)); | |
3291 | |
3292 size = ngx_min(last - p, (ssize_t) ctx->field_rest); | |
3293 ctx->field_rest -= size; | |
3294 | |
3295 if (ctx->field_huffman) { | |
7977
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3296 if (ngx_http_huff_decode(&ctx->field_state, p, size, |
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3297 &ctx->field_end, |
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3298 ctx->field_rest == 0, |
336084ff943b
Moved Huffman coding out of HTTP/2.
Ruslan Ermilov <ru@nginx.com>
parents:
7904
diff
changeset
|
3299 r->connection->log) |
7233 | 3300 != NGX_OK) |
3301 { | |
3302 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3303 "upstream sent invalid encoded header"); | |
3304 return NGX_ERROR; | |
3305 } | |
3306 | |
3307 ctx->value.len = ctx->field_end - ctx->value.data; | |
3308 ctx->value.data[ctx->value.len] = '\0'; | |
3309 | |
3310 } else { | |
7240
413189f03c8d
gRPC: fixed parsing response headers split on CONTINUATION frames.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7235
diff
changeset
|
3311 ctx->field_end = ngx_cpymem(ctx->field_end, p, size); |
7233 | 3312 ctx->value.data[ctx->value.len] = '\0'; |
3313 } | |
3314 | |
3315 p += size - 1; | |
3316 | |
3317 if (ctx->field_rest == 0) { | |
3318 goto done; | |
3319 } | |
3320 | |
3321 break; | |
3322 } | |
3323 | |
3324 continue; | |
3325 | |
3326 done: | |
3327 | |
3328 p++; | |
3329 ctx->rest -= p - b->pos; | |
3330 ctx->fragment_state = sw_start; | |
3331 b->pos = p; | |
3332 | |
3333 if (ctx->index) { | |
3334 ctx->name = *ngx_http_v2_get_static_name(ctx->index); | |
3335 } | |
3336 | |
3337 if (ctx->index && !ctx->literal) { | |
3338 ctx->value = *ngx_http_v2_get_static_value(ctx->index); | |
3339 } | |
3340 | |
3341 if (!ctx->index) { | |
3342 if (ngx_http_grpc_validate_header_name(r, &ctx->name) != NGX_OK) { | |
3343 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3344 "upstream sent invalid header: \"%V: %V\"", | |
3345 &ctx->name, &ctx->value); | |
3346 return NGX_ERROR; | |
3347 } | |
3348 } | |
3349 | |
3350 if (!ctx->index || ctx->literal) { | |
3351 if (ngx_http_grpc_validate_header_value(r, &ctx->value) != NGX_OK) { | |
3352 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3353 "upstream sent invalid header: \"%V: %V\"", | |
3354 &ctx->name, &ctx->value); | |
3355 return NGX_ERROR; | |
3356 } | |
3357 } | |
3358 | |
3359 return NGX_OK; | |
3360 } | |
3361 | |
3362 ctx->rest -= p - b->pos; | |
3363 ctx->fragment_state = state; | |
3364 b->pos = p; | |
3365 | |
3366 if (ctx->rest > ctx->padding) { | |
3367 return NGX_AGAIN; | |
3368 } | |
3369 | |
3370 return NGX_DONE; | |
3371 } | |
3372 | |
3373 | |
3374 static ngx_int_t | |
3375 ngx_http_grpc_validate_header_name(ngx_http_request_t *r, ngx_str_t *s) | |
3376 { | |
3377 u_char ch; | |
3378 ngx_uint_t i; | |
3379 | |
3380 for (i = 0; i < s->len; i++) { | |
3381 ch = s->data[i]; | |
3382 | |
3383 if (ch == ':' && i > 0) { | |
3384 return NGX_ERROR; | |
3385 } | |
3386 | |
3387 if (ch >= 'A' && ch <= 'Z') { | |
3388 return NGX_ERROR; | |
3389 } | |
3390 | |
7883
41f4bd4c51f1
Disabled control characters and space in header names.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7873
diff
changeset
|
3391 if (ch <= 0x20 || ch == 0x7f) { |
7233 | 3392 return NGX_ERROR; |
3393 } | |
3394 } | |
3395 | |
3396 return NGX_OK; | |
3397 } | |
3398 | |
3399 | |
3400 static ngx_int_t | |
3401 ngx_http_grpc_validate_header_value(ngx_http_request_t *r, ngx_str_t *s) | |
3402 { | |
3403 u_char ch; | |
3404 ngx_uint_t i; | |
3405 | |
3406 for (i = 0; i < s->len; i++) { | |
3407 ch = s->data[i]; | |
3408 | |
3409 if (ch == '\0' || ch == CR || ch == LF) { | |
3410 return NGX_ERROR; | |
3411 } | |
3412 } | |
3413 | |
3414 return NGX_OK; | |
3415 } | |
3416 | |
3417 | |
3418 static ngx_int_t | |
3419 ngx_http_grpc_parse_rst_stream(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3420 ngx_buf_t *b) | |
3421 { | |
3422 u_char ch, *p, *last; | |
3423 enum { | |
3424 sw_start = 0, | |
3425 sw_error_2, | |
3426 sw_error_3, | |
3427 sw_error_4 | |
3428 } state; | |
3429 | |
3430 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3431 last = b->last; | |
3432 | |
3433 } else { | |
3434 last = b->pos + ctx->rest; | |
3435 } | |
3436 | |
3437 state = ctx->frame_state; | |
3438 | |
3439 if (state == sw_start) { | |
3440 if (ctx->rest != 4) { | |
3441 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3442 "upstream sent rst stream frame " | |
3443 "with invalid length: %uz", | |
3444 ctx->rest); | |
3445 return NGX_ERROR; | |
3446 } | |
3447 } | |
3448 | |
3449 for (p = b->pos; p < last; p++) { | |
3450 ch = *p; | |
3451 | |
3452 #if 0 | |
3453 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3454 "grpc rst byte: %02Xd s:%d", ch, state); | |
3455 #endif | |
3456 | |
3457 switch (state) { | |
3458 | |
3459 case sw_start: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3460 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3461 state = sw_error_2; |
3462 break; | |
3463 | |
3464 case sw_error_2: | |
3465 ctx->error |= ch << 16; | |
3466 state = sw_error_3; | |
3467 break; | |
3468 | |
3469 case sw_error_3: | |
3470 ctx->error |= ch << 8; | |
3471 state = sw_error_4; | |
3472 break; | |
3473 | |
3474 case sw_error_4: | |
3475 ctx->error |= ch; | |
3476 state = sw_start; | |
3477 | |
3478 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3479 "grpc error: %ui", ctx->error); | |
3480 | |
3481 break; | |
3482 } | |
3483 } | |
3484 | |
3485 ctx->rest -= p - b->pos; | |
3486 ctx->frame_state = state; | |
3487 b->pos = p; | |
3488 | |
3489 if (ctx->rest > 0) { | |
3490 return NGX_AGAIN; | |
3491 } | |
3492 | |
7873
0302a4f0b6c4
gRPC: RST_STREAM(NO_ERROR) handling micro-optimization.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7872
diff
changeset
|
3493 ctx->state = ngx_http_grpc_st_start; |
0302a4f0b6c4
gRPC: RST_STREAM(NO_ERROR) handling micro-optimization.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7872
diff
changeset
|
3494 |
7233 | 3495 return NGX_OK; |
3496 } | |
3497 | |
3498 | |
3499 static ngx_int_t | |
3500 ngx_http_grpc_parse_goaway(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3501 ngx_buf_t *b) | |
3502 { | |
3503 u_char ch, *p, *last; | |
3504 enum { | |
3505 sw_start = 0, | |
3506 sw_last_stream_id_2, | |
3507 sw_last_stream_id_3, | |
3508 sw_last_stream_id_4, | |
3509 sw_error, | |
3510 sw_error_2, | |
3511 sw_error_3, | |
3512 sw_error_4, | |
3513 sw_debug | |
3514 } state; | |
3515 | |
3516 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3517 last = b->last; | |
3518 | |
3519 } else { | |
3520 last = b->pos + ctx->rest; | |
3521 } | |
3522 | |
3523 state = ctx->frame_state; | |
3524 | |
3525 if (state == sw_start) { | |
3526 | |
3527 if (ctx->stream_id) { | |
3528 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3529 "upstream sent goaway frame " | |
3530 "with non-zero stream id: %ui", | |
3531 ctx->stream_id); | |
3532 return NGX_ERROR; | |
3533 } | |
3534 | |
3535 if (ctx->rest < 8) { | |
3536 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3537 "upstream sent goaway frame " | |
3538 "with invalid length: %uz", | |
3539 ctx->rest); | |
3540 return NGX_ERROR; | |
3541 } | |
3542 } | |
3543 | |
3544 for (p = b->pos; p < last; p++) { | |
3545 ch = *p; | |
3546 | |
3547 #if 0 | |
3548 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3549 "grpc goaway byte: %02Xd s:%d", ch, state); | |
3550 #endif | |
3551 | |
3552 switch (state) { | |
3553 | |
3554 case sw_start: | |
3555 ctx->stream_id = (ch & 0x7f) << 24; | |
3556 state = sw_last_stream_id_2; | |
3557 break; | |
3558 | |
3559 case sw_last_stream_id_2: | |
3560 ctx->stream_id |= ch << 16; | |
3561 state = sw_last_stream_id_3; | |
3562 break; | |
3563 | |
3564 case sw_last_stream_id_3: | |
3565 ctx->stream_id |= ch << 8; | |
3566 state = sw_last_stream_id_4; | |
3567 break; | |
3568 | |
3569 case sw_last_stream_id_4: | |
3570 ctx->stream_id |= ch; | |
3571 state = sw_error; | |
3572 break; | |
3573 | |
3574 case sw_error: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7242
diff
changeset
|
3575 ctx->error = (ngx_uint_t) ch << 24; |
7233 | 3576 state = sw_error_2; |
3577 break; | |
3578 | |
3579 case sw_error_2: | |
3580 ctx->error |= ch << 16; | |
3581 state = sw_error_3; | |
3582 break; | |
3583 | |
3584 case sw_error_3: | |
3585 ctx->error |= ch << 8; | |
3586 state = sw_error_4; | |
3587 break; | |
3588 | |
3589 case sw_error_4: | |
3590 ctx->error |= ch; | |
3591 state = sw_debug; | |
3592 break; | |
3593 | |
3594 case sw_debug: | |
3595 break; | |
3596 } | |
3597 } | |
3598 | |
3599 ctx->rest -= p - b->pos; | |
3600 ctx->frame_state = state; | |
3601 b->pos = p; | |
3602 | |
3603 if (ctx->rest > 0) { | |
3604 return NGX_AGAIN; | |
3605 } | |
3606 | |
3607 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3608 "grpc goaway: %ui, stream %ui", | |
3609 ctx->error, ctx->stream_id); | |
3610 | |
3611 ctx->state = ngx_http_grpc_st_start; | |
3612 | |
3613 return NGX_OK; | |
3614 } | |
3615 | |
3616 | |
3617 static ngx_int_t | |
3618 ngx_http_grpc_parse_window_update(ngx_http_request_t *r, | |
3619 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3620 { | |
3621 u_char ch, *p, *last; | |
3622 enum { | |
3623 sw_start = 0, | |
3624 sw_size_2, | |
3625 sw_size_3, | |
3626 sw_size_4 | |
3627 } state; | |
3628 | |
3629 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3630 last = b->last; | |
3631 | |
3632 } else { | |
3633 last = b->pos + ctx->rest; | |
3634 } | |
3635 | |
3636 state = ctx->frame_state; | |
3637 | |
3638 if (state == sw_start) { | |
3639 if (ctx->rest != 4) { | |
3640 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3641 "upstream sent window update frame " | |
3642 "with invalid length: %uz", | |
3643 ctx->rest); | |
3644 return NGX_ERROR; | |
3645 } | |
3646 } | |
3647 | |
3648 for (p = b->pos; p < last; p++) { | |
3649 ch = *p; | |
3650 | |
3651 #if 0 | |
3652 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3653 "grpc window update byte: %02Xd s:%d", ch, state); | |
3654 #endif | |
3655 | |
3656 switch (state) { | |
3657 | |
3658 case sw_start: | |
3659 ctx->window_update = (ch & 0x7f) << 24; | |
3660 state = sw_size_2; | |
3661 break; | |
3662 | |
3663 case sw_size_2: | |
3664 ctx->window_update |= ch << 16; | |
3665 state = sw_size_3; | |
3666 break; | |
3667 | |
3668 case sw_size_3: | |
3669 ctx->window_update |= ch << 8; | |
3670 state = sw_size_4; | |
3671 break; | |
3672 | |
3673 case sw_size_4: | |
3674 ctx->window_update |= ch; | |
3675 state = sw_start; | |
3676 break; | |
3677 } | |
3678 } | |
3679 | |
3680 ctx->rest -= p - b->pos; | |
3681 ctx->frame_state = state; | |
3682 b->pos = p; | |
3683 | |
3684 if (ctx->rest > 0) { | |
3685 return NGX_AGAIN; | |
3686 } | |
3687 | |
3688 ctx->state = ngx_http_grpc_st_start; | |
3689 | |
3690 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3691 "grpc window update: %ui", ctx->window_update); | |
3692 | |
3693 if (ctx->stream_id) { | |
3694 | |
3695 if (ctx->window_update > (size_t) NGX_HTTP_V2_MAX_WINDOW | |
3696 - ctx->send_window) | |
3697 { | |
3698 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3699 "upstream sent too large window update"); | |
3700 return NGX_ERROR; | |
3701 } | |
3702 | |
3703 ctx->send_window += ctx->window_update; | |
3704 | |
3705 } else { | |
3706 | |
3707 if (ctx->window_update > NGX_HTTP_V2_MAX_WINDOW | |
3708 - ctx->connection->send_window) | |
3709 { | |
3710 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3711 "upstream sent too large window update"); | |
3712 return NGX_ERROR; | |
3713 } | |
3714 | |
3715 ctx->connection->send_window += ctx->window_update; | |
3716 } | |
3717 | |
3718 return NGX_OK; | |
3719 } | |
3720 | |
3721 | |
3722 static ngx_int_t | |
3723 ngx_http_grpc_parse_settings(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx, | |
3724 ngx_buf_t *b) | |
3725 { | |
3726 u_char ch, *p, *last; | |
3727 ssize_t window_update; | |
3728 enum { | |
3729 sw_start = 0, | |
3730 sw_id, | |
3731 sw_id_2, | |
3732 sw_value, | |
3733 sw_value_2, | |
3734 sw_value_3, | |
3735 sw_value_4 | |
3736 } state; | |
3737 | |
3738 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3739 last = b->last; | |
3740 | |
3741 } else { | |
3742 last = b->pos + ctx->rest; | |
3743 } | |
3744 | |
3745 state = ctx->frame_state; | |
3746 | |
3747 if (state == sw_start) { | |
3748 | |
3749 if (ctx->stream_id) { | |
3750 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3751 "upstream sent settings frame " | |
3752 "with non-zero stream id: %ui", | |
3753 ctx->stream_id); | |
3754 return NGX_ERROR; | |
3755 } | |
3756 | |
3757 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3758 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3759 "grpc settings ack"); | |
3760 | |
3761 if (ctx->rest != 0) { | |
3762 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3763 "upstream sent settings frame " | |
3764 "with ack flag and non-zero length: %uz", | |
3765 ctx->rest); | |
3766 return NGX_ERROR; | |
3767 } | |
3768 | |
3769 ctx->state = ngx_http_grpc_st_start; | |
3770 | |
3771 return NGX_OK; | |
3772 } | |
3773 | |
3774 if (ctx->rest % 6 != 0) { | |
3775 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3776 "upstream sent settings frame " | |
3777 "with invalid length: %uz", | |
3778 ctx->rest); | |
3779 return NGX_ERROR; | |
3780 } | |
7379
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7371
diff
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|
3781 |
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diff
changeset
|
3782 if (ctx->free == NULL && ctx->settings++ > 1000) { |
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7371
diff
changeset
|
3783 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
57463f4e2fcd
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diff
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|
3784 "upstream sent too many settings frames"); |
57463f4e2fcd
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7371
diff
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|
3785 return NGX_ERROR; |
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diff
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|
3786 } |
7233 | 3787 } |
3788 | |
3789 for (p = b->pos; p < last; p++) { | |
3790 ch = *p; | |
3791 | |
3792 #if 0 | |
3793 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3794 "grpc settings byte: %02Xd s:%d", ch, state); | |
3795 #endif | |
3796 | |
3797 switch (state) { | |
3798 | |
3799 case sw_start: | |
3800 case sw_id: | |
3801 ctx->setting_id = ch << 8; | |
3802 state = sw_id_2; | |
3803 break; | |
3804 | |
3805 case sw_id_2: | |
3806 ctx->setting_id |= ch; | |
3807 state = sw_value; | |
3808 break; | |
3809 | |
3810 case sw_value: | |
7249
070c972336c4
gRPC: fixed possible sign extension of error and setting_value.
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parents:
7242
diff
changeset
|
3811 ctx->setting_value = (ngx_uint_t) ch << 24; |
7233 | 3812 state = sw_value_2; |
3813 break; | |
3814 | |
3815 case sw_value_2: | |
3816 ctx->setting_value |= ch << 16; | |
3817 state = sw_value_3; | |
3818 break; | |
3819 | |
3820 case sw_value_3: | |
3821 ctx->setting_value |= ch << 8; | |
3822 state = sw_value_4; | |
3823 break; | |
3824 | |
3825 case sw_value_4: | |
3826 ctx->setting_value |= ch; | |
3827 state = sw_id; | |
3828 | |
3829 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3830 "grpc setting: %ui %ui", | |
3831 ctx->setting_id, ctx->setting_value); | |
3832 | |
3833 /* | |
3834 * The following settings are defined by the protocol: | |
3835 * | |
3836 * SETTINGS_HEADER_TABLE_SIZE, SETTINGS_ENABLE_PUSH, | |
3837 * SETTINGS_MAX_CONCURRENT_STREAMS, SETTINGS_INITIAL_WINDOW_SIZE, | |
3838 * SETTINGS_MAX_FRAME_SIZE, SETTINGS_MAX_HEADER_LIST_SIZE | |
3839 * | |
3840 * Only SETTINGS_INITIAL_WINDOW_SIZE seems to be needed in | |
3841 * a simple client. | |
3842 */ | |
3843 | |
3844 if (ctx->setting_id == 0x04) { | |
3845 /* SETTINGS_INITIAL_WINDOW_SIZE */ | |
3846 | |
3847 if (ctx->setting_value > NGX_HTTP_V2_MAX_WINDOW) { | |
3848 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3849 "upstream sent settings frame " | |
3850 "with too large initial window size: %ui", | |
3851 ctx->setting_value); | |
3852 return NGX_ERROR; | |
3853 } | |
3854 | |
3855 window_update = ctx->setting_value | |
3856 - ctx->connection->init_window; | |
3857 ctx->connection->init_window = ctx->setting_value; | |
3858 | |
3859 if (ctx->send_window > 0 | |
3860 && window_update > (ssize_t) NGX_HTTP_V2_MAX_WINDOW | |
3861 - ctx->send_window) | |
3862 { | |
3863 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3864 "upstream sent settings frame " | |
3865 "with too large initial window size: %ui", | |
3866 ctx->setting_value); | |
3867 return NGX_ERROR; | |
3868 } | |
3869 | |
3870 ctx->send_window += window_update; | |
3871 } | |
3872 | |
3873 break; | |
3874 } | |
3875 } | |
3876 | |
3877 ctx->rest -= p - b->pos; | |
3878 ctx->frame_state = state; | |
3879 b->pos = p; | |
3880 | |
3881 if (ctx->rest > 0) { | |
3882 return NGX_AGAIN; | |
3883 } | |
3884 | |
3885 ctx->state = ngx_http_grpc_st_start; | |
3886 | |
3887 return ngx_http_grpc_send_settings_ack(r, ctx); | |
3888 } | |
3889 | |
3890 | |
3891 static ngx_int_t | |
3892 ngx_http_grpc_parse_ping(ngx_http_request_t *r, | |
3893 ngx_http_grpc_ctx_t *ctx, ngx_buf_t *b) | |
3894 { | |
3895 u_char ch, *p, *last; | |
3896 enum { | |
3897 sw_start = 0, | |
3898 sw_data_2, | |
3899 sw_data_3, | |
3900 sw_data_4, | |
3901 sw_data_5, | |
3902 sw_data_6, | |
3903 sw_data_7, | |
3904 sw_data_8 | |
3905 } state; | |
3906 | |
3907 if (b->last - b->pos < (ssize_t) ctx->rest) { | |
3908 last = b->last; | |
3909 | |
3910 } else { | |
3911 last = b->pos + ctx->rest; | |
3912 } | |
3913 | |
3914 state = ctx->frame_state; | |
3915 | |
3916 if (state == sw_start) { | |
3917 | |
3918 if (ctx->stream_id) { | |
3919 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3920 "upstream sent ping frame " | |
3921 "with non-zero stream id: %ui", | |
3922 ctx->stream_id); | |
3923 return NGX_ERROR; | |
3924 } | |
3925 | |
3926 if (ctx->rest != 8) { | |
3927 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3928 "upstream sent ping frame " | |
3929 "with invalid length: %uz", | |
3930 ctx->rest); | |
3931 return NGX_ERROR; | |
3932 } | |
3933 | |
3934 if (ctx->flags & NGX_HTTP_V2_ACK_FLAG) { | |
3935 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
3936 "upstream sent ping frame with ack flag"); | |
3937 return NGX_ERROR; | |
3938 } | |
7379
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7371
diff
changeset
|
3939 |
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3940 if (ctx->free == NULL && ctx->pings++ > 1000) { |
57463f4e2fcd
gRPC: limited allocations due to ping and settings frames.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3941 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
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7371
diff
changeset
|
3942 "upstream sent too many ping frames"); |
57463f4e2fcd
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Maxim Dounin <mdounin@mdounin.ru>
parents:
7371
diff
changeset
|
3943 return NGX_ERROR; |
57463f4e2fcd
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diff
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|
3944 } |
7233 | 3945 } |
3946 | |
3947 for (p = b->pos; p < last; p++) { | |
3948 ch = *p; | |
3949 | |
3950 #if 0 | |
3951 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3952 "grpc ping byte: %02Xd s:%d", ch, state); | |
3953 #endif | |
3954 | |
3955 if (state < sw_data_8) { | |
3956 ctx->ping_data[state] = ch; | |
3957 state++; | |
3958 | |
3959 } else { | |
3960 ctx->ping_data[7] = ch; | |
3961 state = sw_start; | |
3962 | |
3963 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3964 "grpc ping"); | |
3965 } | |
3966 } | |
3967 | |
3968 ctx->rest -= p - b->pos; | |
3969 ctx->frame_state = state; | |
3970 b->pos = p; | |
3971 | |
3972 if (ctx->rest > 0) { | |
3973 return NGX_AGAIN; | |
3974 } | |
3975 | |
3976 ctx->state = ngx_http_grpc_st_start; | |
3977 | |
3978 return ngx_http_grpc_send_ping_ack(r, ctx); | |
3979 } | |
3980 | |
3981 | |
3982 static ngx_int_t | |
3983 ngx_http_grpc_send_settings_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
3984 { | |
3985 ngx_chain_t *cl, **ll; | |
3986 ngx_http_grpc_frame_t *f; | |
3987 | |
3988 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
3989 "grpc send settings ack"); | |
3990 | |
3991 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
3992 ll = &cl->next; | |
3993 } | |
3994 | |
3995 cl = ngx_http_grpc_get_buf(r, ctx); | |
3996 if (cl == NULL) { | |
3997 return NGX_ERROR; | |
3998 } | |
3999 | |
4000 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4001 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4002 | |
4003 f->length_0 = 0; | |
4004 f->length_1 = 0; | |
4005 f->length_2 = 0; | |
4006 f->type = NGX_HTTP_V2_SETTINGS_FRAME; | |
4007 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
4008 f->stream_id_0 = 0; | |
4009 f->stream_id_1 = 0; | |
4010 f->stream_id_2 = 0; | |
4011 f->stream_id_3 = 0; | |
4012 | |
4013 *ll = cl; | |
4014 | |
4015 return NGX_OK; | |
4016 } | |
4017 | |
4018 | |
4019 static ngx_int_t | |
4020 ngx_http_grpc_send_ping_ack(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
4021 { | |
4022 ngx_chain_t *cl, **ll; | |
4023 ngx_http_grpc_frame_t *f; | |
4024 | |
4025 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4026 "grpc send ping ack"); | |
4027 | |
4028 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
4029 ll = &cl->next; | |
4030 } | |
4031 | |
4032 cl = ngx_http_grpc_get_buf(r, ctx); | |
4033 if (cl == NULL) { | |
4034 return NGX_ERROR; | |
4035 } | |
4036 | |
4037 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4038 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4039 | |
4040 f->length_0 = 0; | |
4041 f->length_1 = 0; | |
4042 f->length_2 = 8; | |
4043 f->type = NGX_HTTP_V2_PING_FRAME; | |
4044 f->flags = NGX_HTTP_V2_ACK_FLAG; | |
4045 f->stream_id_0 = 0; | |
4046 f->stream_id_1 = 0; | |
4047 f->stream_id_2 = 0; | |
4048 f->stream_id_3 = 0; | |
4049 | |
4050 cl->buf->last = ngx_copy(cl->buf->last, ctx->ping_data, 8); | |
4051 | |
4052 *ll = cl; | |
4053 | |
4054 return NGX_OK; | |
4055 } | |
4056 | |
4057 | |
4058 static ngx_int_t | |
4059 ngx_http_grpc_send_window_update(ngx_http_request_t *r, | |
4060 ngx_http_grpc_ctx_t *ctx) | |
4061 { | |
4062 size_t n; | |
4063 ngx_chain_t *cl, **ll; | |
4064 ngx_http_grpc_frame_t *f; | |
4065 | |
4066 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4067 "grpc send window update: %uz %uz", | |
4068 ctx->connection->recv_window, ctx->recv_window); | |
4069 | |
4070 for (cl = ctx->out, ll = &ctx->out; cl; cl = cl->next) { | |
4071 ll = &cl->next; | |
4072 } | |
4073 | |
4074 cl = ngx_http_grpc_get_buf(r, ctx); | |
4075 if (cl == NULL) { | |
4076 return NGX_ERROR; | |
4077 } | |
4078 | |
4079 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4080 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4081 | |
4082 f->length_0 = 0; | |
4083 f->length_1 = 0; | |
4084 f->length_2 = 4; | |
4085 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
4086 f->flags = 0; | |
4087 f->stream_id_0 = 0; | |
4088 f->stream_id_1 = 0; | |
4089 f->stream_id_2 = 0; | |
4090 f->stream_id_3 = 0; | |
4091 | |
4092 n = NGX_HTTP_V2_MAX_WINDOW - ctx->connection->recv_window; | |
4093 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4094 | |
4095 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
4096 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
4097 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
4098 *cl->buf->last++ = (u_char) (n & 0xff); | |
4099 | |
4100 f = (ngx_http_grpc_frame_t *) cl->buf->last; | |
4101 cl->buf->last += sizeof(ngx_http_grpc_frame_t); | |
4102 | |
4103 f->length_0 = 0; | |
4104 f->length_1 = 0; | |
4105 f->length_2 = 4; | |
4106 f->type = NGX_HTTP_V2_WINDOW_UPDATE_FRAME; | |
4107 f->flags = 0; | |
4108 f->stream_id_0 = (u_char) ((ctx->id >> 24) & 0xff); | |
4109 f->stream_id_1 = (u_char) ((ctx->id >> 16) & 0xff); | |
4110 f->stream_id_2 = (u_char) ((ctx->id >> 8) & 0xff); | |
4111 f->stream_id_3 = (u_char) (ctx->id & 0xff); | |
4112 | |
4113 n = NGX_HTTP_V2_MAX_WINDOW - ctx->recv_window; | |
4114 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4115 | |
4116 *cl->buf->last++ = (u_char) ((n >> 24) & 0xff); | |
4117 *cl->buf->last++ = (u_char) ((n >> 16) & 0xff); | |
4118 *cl->buf->last++ = (u_char) ((n >> 8) & 0xff); | |
4119 *cl->buf->last++ = (u_char) (n & 0xff); | |
4120 | |
4121 *ll = cl; | |
4122 | |
4123 return NGX_OK; | |
4124 } | |
4125 | |
4126 | |
4127 static ngx_chain_t * | |
4128 ngx_http_grpc_get_buf(ngx_http_request_t *r, ngx_http_grpc_ctx_t *ctx) | |
4129 { | |
7305
6cfd45d4c754
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diff
changeset
|
4130 u_char *start; |
7233 | 4131 ngx_buf_t *b; |
4132 ngx_chain_t *cl; | |
4133 | |
4134 cl = ngx_chain_get_free_buf(r->pool, &ctx->free); | |
4135 if (cl == NULL) { | |
4136 return NULL; | |
4137 } | |
4138 | |
4139 b = cl->buf; | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4140 start = b->start; |
6cfd45d4c754
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7271
diff
changeset
|
4141 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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diff
changeset
|
4142 if (start == NULL) { |
7233 | 4143 |
4144 /* | |
4145 * each buffer is large enough to hold two window update | |
4146 * frames in a row | |
4147 */ | |
4148 | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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7271
diff
changeset
|
4149 start = ngx_palloc(r->pool, 2 * sizeof(ngx_http_grpc_frame_t) + 8); |
6cfd45d4c754
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diff
changeset
|
4150 if (start == NULL) { |
7233 | 4151 return NULL; |
4152 } | |
4153 | |
4154 } | |
4155 | |
7305
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4156 ngx_memzero(b, sizeof(ngx_buf_t)); |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4157 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4158 b->start = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
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parents:
7271
diff
changeset
|
4159 b->pos = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4160 b->last = start; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
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7271
diff
changeset
|
4161 b->end = start + 2 * sizeof(ngx_http_grpc_frame_t) + 8; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4162 |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4163 b->tag = (ngx_buf_tag_t) &ngx_http_grpc_body_output_filter; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4164 b->temporary = 1; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4165 b->flush = 1; |
6cfd45d4c754
gRPC: clearing buffers in ngx_http_grpc_get_buf().
Maxim Dounin <mdounin@mdounin.ru>
parents:
7271
diff
changeset
|
4166 |
7233 | 4167 return cl; |
4168 } | |
4169 | |
4170 | |
4171 static ngx_http_grpc_ctx_t * | |
4172 ngx_http_grpc_get_ctx(ngx_http_request_t *r) | |
4173 { | |
4174 ngx_http_grpc_ctx_t *ctx; | |
4175 ngx_http_upstream_t *u; | |
4176 | |
4177 ctx = ngx_http_get_module_ctx(r, ngx_http_grpc_module); | |
4178 | |
4179 if (ctx->connection == NULL) { | |
4180 u = r->upstream; | |
4181 | |
4182 if (ngx_http_grpc_get_connection_data(r, ctx, &u->peer) != NGX_OK) { | |
4183 return NULL; | |
4184 } | |
4185 } | |
4186 | |
4187 return ctx; | |
4188 } | |
4189 | |
4190 | |
4191 static ngx_int_t | |
4192 ngx_http_grpc_get_connection_data(ngx_http_request_t *r, | |
4193 ngx_http_grpc_ctx_t *ctx, ngx_peer_connection_t *pc) | |
4194 { | |
4195 ngx_connection_t *c; | |
4196 ngx_pool_cleanup_t *cln; | |
4197 | |
4198 c = pc->connection; | |
4199 | |
4200 if (pc->cached) { | |
4201 | |
4202 /* | |
4203 * for cached connections, connection data can be found | |
4204 * in the cleanup handler | |
4205 */ | |
4206 | |
4207 for (cln = c->pool->cleanup; cln; cln = cln->next) { | |
4208 if (cln->handler == ngx_http_grpc_cleanup) { | |
4209 ctx->connection = cln->data; | |
4210 break; | |
4211 } | |
4212 } | |
4213 | |
4214 if (ctx->connection == NULL) { | |
4215 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
4216 "no connection data found for " | |
4217 "keepalive http2 connection"); | |
4218 return NGX_ERROR; | |
4219 } | |
4220 | |
4221 ctx->send_window = ctx->connection->init_window; | |
4222 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4223 | |
4224 ctx->connection->last_stream_id += 2; | |
4225 ctx->id = ctx->connection->last_stream_id; | |
4226 | |
4227 return NGX_OK; | |
4228 } | |
4229 | |
4230 cln = ngx_pool_cleanup_add(c->pool, sizeof(ngx_http_grpc_conn_t)); | |
4231 if (cln == NULL) { | |
4232 return NGX_ERROR; | |
4233 } | |
4234 | |
4235 cln->handler = ngx_http_grpc_cleanup; | |
4236 ctx->connection = cln->data; | |
4237 | |
4238 ctx->connection->init_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4239 ctx->connection->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4240 ctx->connection->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4241 | |
4242 ctx->send_window = NGX_HTTP_V2_DEFAULT_WINDOW; | |
4243 ctx->recv_window = NGX_HTTP_V2_MAX_WINDOW; | |
4244 | |
4245 ctx->id = 1; | |
4246 ctx->connection->last_stream_id = 1; | |
4247 | |
4248 return NGX_OK; | |
4249 } | |
4250 | |
4251 | |
4252 static void | |
4253 ngx_http_grpc_cleanup(void *data) | |
4254 { | |
4255 #if 0 | |
4256 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, | |
4257 "grpc cleanup"); | |
4258 #endif | |
4259 return; | |
4260 } | |
4261 | |
4262 | |
4263 static void | |
4264 ngx_http_grpc_abort_request(ngx_http_request_t *r) | |
4265 { | |
4266 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4267 "abort grpc request"); | |
4268 return; | |
4269 } | |
4270 | |
4271 | |
4272 static void | |
4273 ngx_http_grpc_finalize_request(ngx_http_request_t *r, ngx_int_t rc) | |
4274 { | |
4275 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
4276 "finalize grpc request"); | |
4277 return; | |
4278 } | |
4279 | |
4280 | |
7234
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4281 static ngx_int_t |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4282 ngx_http_grpc_internal_trailers_variable(ngx_http_request_t *r, |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4283 ngx_http_variable_value_t *v, uintptr_t data) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4284 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4285 ngx_table_elt_t *te; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4286 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4287 te = r->headers_in.te; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4288 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4289 if (te == NULL) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4290 v->not_found = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4291 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4292 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4293 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4294 if (ngx_strlcasestrn(te->value.data, te->value.data + te->value.len, |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4295 (u_char *) "trailers", 8 - 1) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4296 == NULL) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4297 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4298 v->not_found = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4299 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4300 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4301 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4302 v->valid = 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4303 v->no_cacheable = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4304 v->not_found = 0; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4305 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4306 v->data = (u_char *) "trailers"; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4307 v->len = sizeof("trailers") - 1; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4308 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4309 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4310 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4311 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4312 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4313 static ngx_int_t |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4314 ngx_http_grpc_add_variables(ngx_conf_t *cf) |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4315 { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4316 ngx_http_variable_t *var, *v; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4317 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4318 for (v = ngx_http_grpc_vars; v->name.len; v++) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4319 var = ngx_http_add_variable(cf, &v->name, v->flags); |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4320 if (var == NULL) { |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4321 return NGX_ERROR; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4322 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4323 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4324 var->get_handler = v->get_handler; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4325 var->data = v->data; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4326 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4327 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4328 return NGX_OK; |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4329 } |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4330 |
c693daca57f7
gRPC: special handling of the TE request header.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7233
diff
changeset
|
4331 |
7233 | 4332 static void * |
4333 ngx_http_grpc_create_loc_conf(ngx_conf_t *cf) | |
4334 { | |
4335 ngx_http_grpc_loc_conf_t *conf; | |
4336 | |
4337 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_grpc_loc_conf_t)); | |
4338 if (conf == NULL) { | |
4339 return NULL; | |
4340 } | |
4341 | |
4342 /* | |
4343 * set by ngx_pcalloc(): | |
4344 * | |
4345 * conf->upstream.ignore_headers = 0; | |
4346 * conf->upstream.next_upstream = 0; | |
4347 * conf->upstream.hide_headers_hash = { NULL, 0 }; | |
4348 * | |
4349 * conf->headers.lengths = NULL; | |
4350 * conf->headers.values = NULL; | |
4351 * conf->headers.hash = { NULL, 0 }; | |
4352 * conf->host = { 0, NULL }; | |
4353 * conf->host_set = 0; | |
4354 * conf->ssl = 0; | |
4355 * conf->ssl_protocols = 0; | |
4356 * conf->ssl_ciphers = { 0, NULL }; | |
4357 * conf->ssl_trusted_certificate = { 0, NULL }; | |
4358 * conf->ssl_crl = { 0, NULL }; | |
4359 */ | |
4360 | |
4361 conf->upstream.local = NGX_CONF_UNSET_PTR; | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4362 conf->upstream.socket_keepalive = NGX_CONF_UNSET; |
7233 | 4363 conf->upstream.next_upstream_tries = NGX_CONF_UNSET_UINT; |
4364 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; | |
4365 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; | |
4366 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; | |
4367 conf->upstream.next_upstream_timeout = NGX_CONF_UNSET_MSEC; | |
4368 | |
4369 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; | |
4370 | |
4371 conf->upstream.hide_headers = NGX_CONF_UNSET_PTR; | |
4372 conf->upstream.pass_headers = NGX_CONF_UNSET_PTR; | |
4373 | |
4374 conf->upstream.intercept_errors = NGX_CONF_UNSET; | |
4375 | |
4376 #if (NGX_HTTP_SSL) | |
4377 conf->upstream.ssl_session_reuse = NGX_CONF_UNSET; | |
7831
bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7803
diff
changeset
|
4378 conf->upstream.ssl_name = NGX_CONF_UNSET_PTR; |
7233 | 4379 conf->upstream.ssl_server_name = NGX_CONF_UNSET; |
4380 conf->upstream.ssl_verify = NGX_CONF_UNSET; | |
4381 conf->ssl_verify_depth = NGX_CONF_UNSET_UINT; | |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4382 conf->upstream.ssl_certificate = NGX_CONF_UNSET_PTR; |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4383 conf->upstream.ssl_certificate_key = NGX_CONF_UNSET_PTR; |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4384 conf->upstream.ssl_passwords = NGX_CONF_UNSET_PTR; |
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4385 conf->ssl_conf_commands = NGX_CONF_UNSET_PTR; |
7233 | 4386 #endif |
4387 | |
4388 /* the hardcoded values */ | |
4389 conf->upstream.cyclic_temp_file = 0; | |
4390 conf->upstream.buffering = 0; | |
4391 conf->upstream.ignore_client_abort = 0; | |
4392 conf->upstream.send_lowat = 0; | |
4393 conf->upstream.bufs.num = 0; | |
4394 conf->upstream.busy_buffers_size = 0; | |
4395 conf->upstream.max_temp_file_size = 0; | |
4396 conf->upstream.temp_file_write_size = 0; | |
4397 conf->upstream.pass_request_headers = 1; | |
4398 conf->upstream.pass_request_body = 1; | |
4399 conf->upstream.force_ranges = 0; | |
4400 conf->upstream.pass_trailers = 1; | |
4401 conf->upstream.preserve_output = 1; | |
4402 | |
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4403 conf->headers_source = NGX_CONF_UNSET_PTR; |
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4404 |
7233 | 4405 ngx_str_set(&conf->upstream.module, "grpc"); |
4406 | |
4407 return conf; | |
4408 } | |
4409 | |
4410 | |
4411 static char * | |
4412 ngx_http_grpc_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
4413 { | |
4414 ngx_http_grpc_loc_conf_t *prev = parent; | |
4415 ngx_http_grpc_loc_conf_t *conf = child; | |
4416 | |
4417 ngx_int_t rc; | |
4418 ngx_hash_init_t hash; | |
4419 ngx_http_core_loc_conf_t *clcf; | |
4420 | |
4421 ngx_conf_merge_ptr_value(conf->upstream.local, | |
4422 prev->upstream.local, NULL); | |
4423 | |
7371
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4424 ngx_conf_merge_value(conf->upstream.socket_keepalive, |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4425 prev->upstream.socket_keepalive, 0); |
8b68d50090e4
Upstream: proxy_socket_keepalive and friends.
Vladimir Homutov <vl@nginx.com>
parents:
7350
diff
changeset
|
4426 |
7233 | 4427 ngx_conf_merge_uint_value(conf->upstream.next_upstream_tries, |
4428 prev->upstream.next_upstream_tries, 0); | |
4429 | |
4430 ngx_conf_merge_msec_value(conf->upstream.connect_timeout, | |
4431 prev->upstream.connect_timeout, 60000); | |
4432 | |
4433 ngx_conf_merge_msec_value(conf->upstream.send_timeout, | |
4434 prev->upstream.send_timeout, 60000); | |
4435 | |
4436 ngx_conf_merge_msec_value(conf->upstream.read_timeout, | |
4437 prev->upstream.read_timeout, 60000); | |
4438 | |
4439 ngx_conf_merge_msec_value(conf->upstream.next_upstream_timeout, | |
4440 prev->upstream.next_upstream_timeout, 0); | |
4441 | |
4442 ngx_conf_merge_size_value(conf->upstream.buffer_size, | |
4443 prev->upstream.buffer_size, | |
4444 (size_t) ngx_pagesize); | |
4445 | |
4446 ngx_conf_merge_bitmask_value(conf->upstream.ignore_headers, | |
4447 prev->upstream.ignore_headers, | |
4448 NGX_CONF_BITMASK_SET); | |
4449 | |
4450 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, | |
4451 prev->upstream.next_upstream, | |
4452 (NGX_CONF_BITMASK_SET | |
4453 |NGX_HTTP_UPSTREAM_FT_ERROR | |
4454 |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); | |
4455 | |
4456 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) { | |
4457 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET | |
4458 |NGX_HTTP_UPSTREAM_FT_OFF; | |
4459 } | |
4460 | |
4461 ngx_conf_merge_value(conf->upstream.intercept_errors, | |
4462 prev->upstream.intercept_errors, 0); | |
4463 | |
4464 #if (NGX_HTTP_SSL) | |
4465 | |
4466 ngx_conf_merge_value(conf->upstream.ssl_session_reuse, | |
4467 prev->upstream.ssl_session_reuse, 1); | |
4468 | |
4469 ngx_conf_merge_bitmask_value(conf->ssl_protocols, prev->ssl_protocols, | |
4470 (NGX_CONF_BITMASK_SET|NGX_SSL_TLSv1 | |
4471 |NGX_SSL_TLSv1_1|NGX_SSL_TLSv1_2)); | |
4472 | |
4473 ngx_conf_merge_str_value(conf->ssl_ciphers, prev->ssl_ciphers, | |
4474 "DEFAULT"); | |
4475 | |
7831
bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7803
diff
changeset
|
4476 ngx_conf_merge_ptr_value(conf->upstream.ssl_name, |
bdd4d89370a7
Changed complex value slots to use NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7803
diff
changeset
|
4477 prev->upstream.ssl_name, NULL); |
7233 | 4478 ngx_conf_merge_value(conf->upstream.ssl_server_name, |
4479 prev->upstream.ssl_server_name, 0); | |
4480 ngx_conf_merge_value(conf->upstream.ssl_verify, | |
4481 prev->upstream.ssl_verify, 0); | |
4482 ngx_conf_merge_uint_value(conf->ssl_verify_depth, | |
4483 prev->ssl_verify_depth, 1); | |
4484 ngx_conf_merge_str_value(conf->ssl_trusted_certificate, | |
4485 prev->ssl_trusted_certificate, ""); | |
4486 ngx_conf_merge_str_value(conf->ssl_crl, prev->ssl_crl, ""); | |
4487 | |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4488 ngx_conf_merge_ptr_value(conf->upstream.ssl_certificate, |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4489 prev->upstream.ssl_certificate, NULL); |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4490 ngx_conf_merge_ptr_value(conf->upstream.ssl_certificate_key, |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4491 prev->upstream.ssl_certificate_key, NULL); |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4492 ngx_conf_merge_ptr_value(conf->upstream.ssl_passwords, |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4493 prev->upstream.ssl_passwords, NULL); |
7233 | 4494 |
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4495 ngx_conf_merge_ptr_value(conf->ssl_conf_commands, |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4496 prev->ssl_conf_commands, NULL); |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4497 |
7233 | 4498 if (conf->ssl && ngx_http_grpc_set_ssl(cf, conf) != NGX_OK) { |
4499 return NGX_CONF_ERROR; | |
4500 } | |
4501 | |
4502 #endif | |
4503 | |
4504 hash.max_size = 512; | |
4505 hash.bucket_size = ngx_align(64, ngx_cacheline_size); | |
4506 hash.name = "grpc_headers_hash"; | |
4507 | |
4508 if (ngx_http_upstream_hide_headers_hash(cf, &conf->upstream, | |
4509 &prev->upstream, ngx_http_grpc_hide_headers, &hash) | |
4510 != NGX_OK) | |
4511 { | |
4512 return NGX_CONF_ERROR; | |
4513 } | |
4514 | |
4515 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
4516 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4517 if (clcf->noname |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4518 && conf->upstream.upstream == NULL && conf->grpc_lengths == NULL) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4519 { |
7233 | 4520 conf->upstream.upstream = prev->upstream.upstream; |
4521 conf->host = prev->host; | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4522 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4523 conf->grpc_lengths = prev->grpc_lengths; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4524 conf->grpc_values = prev->grpc_values; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4525 |
7233 | 4526 #if (NGX_HTTP_SSL) |
4527 conf->upstream.ssl = prev->upstream.ssl; | |
4528 #endif | |
4529 } | |
4530 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4531 if (clcf->lmt_excpt && clcf->handler == NULL |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4532 && (conf->upstream.upstream || conf->grpc_lengths)) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4533 { |
7233 | 4534 clcf->handler = ngx_http_grpc_handler; |
4535 } | |
4536 | |
7728
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4537 ngx_conf_merge_ptr_value(conf->headers_source, prev->headers_source, NULL); |
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4538 |
485dba3e2a01
Core: ngx_conf_set_keyval_slot() now accepts NGX_CONF_UNSET_PTR.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7680
diff
changeset
|
4539 if (conf->headers_source == prev->headers_source) { |
7233 | 4540 conf->headers = prev->headers; |
4541 conf->host_set = prev->host_set; | |
4542 } | |
4543 | |
4544 rc = ngx_http_grpc_init_headers(cf, conf, &conf->headers, | |
4545 ngx_http_grpc_headers); | |
4546 if (rc != NGX_OK) { | |
4547 return NGX_CONF_ERROR; | |
4548 } | |
4549 | |
4550 /* | |
4551 * special handling to preserve conf->headers in the "http" section | |
4552 * to inherit it to all servers | |
4553 */ | |
4554 | |
4555 if (prev->headers.hash.buckets == NULL | |
4556 && conf->headers_source == prev->headers_source) | |
4557 { | |
4558 prev->headers = conf->headers; | |
4559 prev->host_set = conf->host_set; | |
4560 } | |
4561 | |
4562 return NGX_CONF_OK; | |
4563 } | |
4564 | |
4565 | |
4566 static ngx_int_t | |
4567 ngx_http_grpc_init_headers(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *conf, | |
4568 ngx_http_grpc_headers_t *headers, ngx_keyval_t *default_headers) | |
4569 { | |
4570 u_char *p; | |
4571 size_t size; | |
4572 uintptr_t *code; | |
4573 ngx_uint_t i; | |
4574 ngx_array_t headers_names, headers_merged; | |
4575 ngx_keyval_t *src, *s, *h; | |
4576 ngx_hash_key_t *hk; | |
4577 ngx_hash_init_t hash; | |
4578 ngx_http_script_compile_t sc; | |
4579 ngx_http_script_copy_code_t *copy; | |
4580 | |
4581 if (headers->hash.buckets) { | |
4582 return NGX_OK; | |
4583 } | |
4584 | |
4585 if (ngx_array_init(&headers_names, cf->temp_pool, 4, sizeof(ngx_hash_key_t)) | |
4586 != NGX_OK) | |
4587 { | |
4588 return NGX_ERROR; | |
4589 } | |
4590 | |
4591 if (ngx_array_init(&headers_merged, cf->temp_pool, 4, sizeof(ngx_keyval_t)) | |
4592 != NGX_OK) | |
4593 { | |
4594 return NGX_ERROR; | |
4595 } | |
4596 | |
4597 headers->lengths = ngx_array_create(cf->pool, 64, 1); | |
4598 if (headers->lengths == NULL) { | |
4599 return NGX_ERROR; | |
4600 } | |
4601 | |
4602 headers->values = ngx_array_create(cf->pool, 512, 1); | |
4603 if (headers->values == NULL) { | |
4604 return NGX_ERROR; | |
4605 } | |
4606 | |
4607 if (conf->headers_source) { | |
4608 | |
4609 src = conf->headers_source->elts; | |
4610 for (i = 0; i < conf->headers_source->nelts; i++) { | |
4611 | |
4612 if (src[i].key.len == 4 | |
4613 && ngx_strncasecmp(src[i].key.data, (u_char *) "Host", 4) == 0) | |
4614 { | |
4615 conf->host_set = 1; | |
4616 } | |
4617 | |
4618 s = ngx_array_push(&headers_merged); | |
4619 if (s == NULL) { | |
4620 return NGX_ERROR; | |
4621 } | |
4622 | |
4623 *s = src[i]; | |
4624 } | |
4625 } | |
4626 | |
4627 h = default_headers; | |
4628 | |
4629 while (h->key.len) { | |
4630 | |
4631 src = headers_merged.elts; | |
4632 for (i = 0; i < headers_merged.nelts; i++) { | |
4633 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) { | |
4634 goto next; | |
4635 } | |
4636 } | |
4637 | |
4638 s = ngx_array_push(&headers_merged); | |
4639 if (s == NULL) { | |
4640 return NGX_ERROR; | |
4641 } | |
4642 | |
4643 *s = *h; | |
4644 | |
4645 next: | |
4646 | |
4647 h++; | |
4648 } | |
4649 | |
4650 | |
4651 src = headers_merged.elts; | |
4652 for (i = 0; i < headers_merged.nelts; i++) { | |
4653 | |
4654 hk = ngx_array_push(&headers_names); | |
4655 if (hk == NULL) { | |
4656 return NGX_ERROR; | |
4657 } | |
4658 | |
4659 hk->key = src[i].key; | |
4660 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len); | |
4661 hk->value = (void *) 1; | |
4662 | |
4663 if (src[i].value.len == 0) { | |
4664 continue; | |
4665 } | |
4666 | |
4667 copy = ngx_array_push_n(headers->lengths, | |
4668 sizeof(ngx_http_script_copy_code_t)); | |
4669 if (copy == NULL) { | |
4670 return NGX_ERROR; | |
4671 } | |
4672 | |
7271
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4673 copy->code = (ngx_http_script_code_pt) (void *) |
9e25a5380a21
Silenced -Wcast-function-type warnings (closes #1546).
Sergey Kandaurov <pluknet@nginx.com>
parents:
7249
diff
changeset
|
4674 ngx_http_script_copy_len_code; |
7233 | 4675 copy->len = src[i].key.len; |
4676 | |
4677 size = (sizeof(ngx_http_script_copy_code_t) | |
4678 + src[i].key.len + sizeof(uintptr_t) - 1) | |
4679 & ~(sizeof(uintptr_t) - 1); | |
4680 | |
4681 copy = ngx_array_push_n(headers->values, size); | |
4682 if (copy == NULL) { | |
4683 return NGX_ERROR; | |
4684 } | |
4685 | |
4686 copy->code = ngx_http_script_copy_code; | |
4687 copy->len = src[i].key.len; | |
4688 | |
4689 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); | |
4690 ngx_memcpy(p, src[i].key.data, src[i].key.len); | |
4691 | |
4692 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
4693 | |
4694 sc.cf = cf; | |
4695 sc.source = &src[i].value; | |
4696 sc.flushes = &headers->flushes; | |
4697 sc.lengths = &headers->lengths; | |
4698 sc.values = &headers->values; | |
4699 | |
4700 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
4701 return NGX_ERROR; | |
4702 } | |
4703 | |
4704 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4705 if (code == NULL) { | |
4706 return NGX_ERROR; | |
4707 } | |
4708 | |
4709 *code = (uintptr_t) NULL; | |
4710 | |
4711 code = ngx_array_push_n(headers->values, sizeof(uintptr_t)); | |
4712 if (code == NULL) { | |
4713 return NGX_ERROR; | |
4714 } | |
4715 | |
4716 *code = (uintptr_t) NULL; | |
4717 } | |
4718 | |
4719 code = ngx_array_push_n(headers->lengths, sizeof(uintptr_t)); | |
4720 if (code == NULL) { | |
4721 return NGX_ERROR; | |
4722 } | |
4723 | |
4724 *code = (uintptr_t) NULL; | |
4725 | |
4726 | |
4727 hash.hash = &headers->hash; | |
4728 hash.key = ngx_hash_key_lc; | |
4729 hash.max_size = 512; | |
4730 hash.bucket_size = 64; | |
4731 hash.name = "grpc_headers_hash"; | |
4732 hash.pool = cf->pool; | |
4733 hash.temp_pool = NULL; | |
4734 | |
4735 return ngx_hash_init(&hash, headers_names.elts, headers_names.nelts); | |
4736 } | |
4737 | |
4738 | |
4739 static char * | |
4740 ngx_http_grpc_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4741 { | |
4742 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4743 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4744 size_t add; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4745 ngx_str_t *value, *url; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4746 ngx_url_t u; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4747 ngx_uint_t n; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4748 ngx_http_core_loc_conf_t *clcf; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4749 ngx_http_script_compile_t sc; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4750 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4751 if (glcf->upstream.upstream || glcf->grpc_lengths) { |
7233 | 4752 return "is duplicate"; |
4753 } | |
4754 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4755 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4756 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4757 clcf->handler = ngx_http_grpc_handler; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4758 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4759 if (clcf->name.len && clcf->name.data[clcf->name.len - 1] == '/') { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4760 clcf->auto_redirect = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4761 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4762 |
7233 | 4763 value = cf->args->elts; |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4764 |
7233 | 4765 url = &value[1]; |
4766 | |
7619
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4767 n = ngx_http_script_variables_count(url); |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4768 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4769 if (n) { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4770 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4771 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4772 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4773 sc.cf = cf; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4774 sc.source = url; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4775 sc.lengths = &glcf->grpc_lengths; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4776 sc.values = &glcf->grpc_values; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4777 sc.variables = n; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4778 sc.complete_lengths = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4779 sc.complete_values = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4780 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4781 if (ngx_http_script_compile(&sc) != NGX_OK) { |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4782 return NGX_CONF_ERROR; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4783 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4784 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4785 #if (NGX_HTTP_SSL) |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4786 glcf->ssl = 1; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4787 #endif |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4788 |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4789 return NGX_CONF_OK; |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4790 } |
6439ef81e37d
gRPC: variables support in the "grpc_pass" directive.
Vladimir Homutov <vl@nginx.com>
parents:
7473
diff
changeset
|
4791 |
7233 | 4792 if (ngx_strncasecmp(url->data, (u_char *) "grpc://", 7) == 0) { |
4793 add = 7; | |
4794 | |
4795 } else if (ngx_strncasecmp(url->data, (u_char *) "grpcs://", 8) == 0) { | |
4796 | |
4797 #if (NGX_HTTP_SSL) | |
4798 glcf->ssl = 1; | |
4799 | |
4800 add = 8; | |
4801 #else | |
4802 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
4803 "grpcs protocol requires SSL support"); | |
4804 return NGX_CONF_ERROR; | |
4805 #endif | |
4806 | |
4807 } else { | |
4808 add = 0; | |
4809 } | |
4810 | |
4811 ngx_memzero(&u, sizeof(ngx_url_t)); | |
4812 | |
4813 u.url.len = url->len - add; | |
4814 u.url.data = url->data + add; | |
4815 u.no_resolve = 1; | |
4816 | |
4817 glcf->upstream.upstream = ngx_http_upstream_add(cf, &u, 0); | |
4818 if (glcf->upstream.upstream == NULL) { | |
4819 return NGX_CONF_ERROR; | |
4820 } | |
4821 | |
4822 if (u.family != AF_UNIX) { | |
4823 | |
4824 if (u.no_port) { | |
4825 glcf->host = u.host; | |
4826 | |
4827 } else { | |
4828 glcf->host.len = u.host.len + 1 + u.port_text.len; | |
4829 glcf->host.data = u.host.data; | |
4830 } | |
4831 | |
4832 } else { | |
4833 ngx_str_set(&glcf->host, "localhost"); | |
4834 } | |
4835 | |
4836 return NGX_CONF_OK; | |
4837 } | |
4838 | |
4839 | |
4840 #if (NGX_HTTP_SSL) | |
4841 | |
4842 static char * | |
4843 ngx_http_grpc_ssl_password_file(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
4844 { | |
4845 ngx_http_grpc_loc_conf_t *glcf = conf; | |
4846 | |
4847 ngx_str_t *value; | |
4848 | |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4849 if (glcf->upstream.ssl_passwords != NGX_CONF_UNSET_PTR) { |
7233 | 4850 return "is duplicate"; |
4851 } | |
4852 | |
4853 value = cf->args->elts; | |
4854 | |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4855 glcf->upstream.ssl_passwords = ngx_ssl_read_password_file(cf, &value[1]); |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4856 |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4857 if (glcf->upstream.ssl_passwords == NULL) { |
7233 | 4858 return NGX_CONF_ERROR; |
4859 } | |
4860 | |
4861 return NGX_CONF_OK; | |
4862 } | |
4863 | |
4864 | |
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4865 static char * |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4866 ngx_http_grpc_ssl_conf_command_check(ngx_conf_t *cf, void *post, void *data) |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4867 { |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4868 #ifndef SSL_CONF_FLAG_FILE |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4869 return "is not supported on this platform"; |
7787
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7746
diff
changeset
|
4870 #else |
7ce28b4cc57e
SSL: fixed build by Sun C with old OpenSSL versions.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7746
diff
changeset
|
4871 return NGX_CONF_OK; |
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4872 #endif |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4873 } |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4874 |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4875 |
7233 | 4876 static ngx_int_t |
4877 ngx_http_grpc_set_ssl(ngx_conf_t *cf, ngx_http_grpc_loc_conf_t *glcf) | |
4878 { | |
4879 ngx_pool_cleanup_t *cln; | |
4880 | |
4881 glcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t)); | |
4882 if (glcf->upstream.ssl == NULL) { | |
4883 return NGX_ERROR; | |
4884 } | |
4885 | |
4886 glcf->upstream.ssl->log = cf->log; | |
4887 | |
4888 if (ngx_ssl_create(glcf->upstream.ssl, glcf->ssl_protocols, NULL) | |
4889 != NGX_OK) | |
4890 { | |
4891 return NGX_ERROR; | |
4892 } | |
4893 | |
4894 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
4895 if (cln == NULL) { | |
7473
8981dbb12254
SSL: fixed potential leak on memory allocation errors.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7379
diff
changeset
|
4896 ngx_ssl_cleanup_ctx(glcf->upstream.ssl); |
7233 | 4897 return NGX_ERROR; |
4898 } | |
4899 | |
4900 cln->handler = ngx_ssl_cleanup_ctx; | |
4901 cln->data = glcf->upstream.ssl; | |
4902 | |
7904
419c066cb710
SSL: ciphers now set before loading certificates (ticket #2035).
Maxim Dounin <mdounin@mdounin.ru>
parents:
7883
diff
changeset
|
4903 if (ngx_ssl_ciphers(cf, glcf->upstream.ssl, &glcf->ssl_ciphers, 0) |
419c066cb710
SSL: ciphers now set before loading certificates (ticket #2035).
Maxim Dounin <mdounin@mdounin.ru>
parents:
7883
diff
changeset
|
4904 != NGX_OK) |
419c066cb710
SSL: ciphers now set before loading certificates (ticket #2035).
Maxim Dounin <mdounin@mdounin.ru>
parents:
7883
diff
changeset
|
4905 { |
419c066cb710
SSL: ciphers now set before loading certificates (ticket #2035).
Maxim Dounin <mdounin@mdounin.ru>
parents:
7883
diff
changeset
|
4906 return NGX_ERROR; |
419c066cb710
SSL: ciphers now set before loading certificates (ticket #2035).
Maxim Dounin <mdounin@mdounin.ru>
parents:
7883
diff
changeset
|
4907 } |
419c066cb710
SSL: ciphers now set before loading certificates (ticket #2035).
Maxim Dounin <mdounin@mdounin.ru>
parents:
7883
diff
changeset
|
4908 |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4909 if (glcf->upstream.ssl_certificate) { |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4910 |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4911 if (glcf->upstream.ssl_certificate_key == NULL) { |
7233 | 4912 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, |
4913 "no \"grpc_ssl_certificate_key\" is defined " | |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4914 "for certificate \"%V\"", |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4915 &glcf->upstream.ssl_certificate->value); |
7233 | 4916 return NGX_ERROR; |
4917 } | |
4918 | |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4919 if (glcf->upstream.ssl_certificate->lengths |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4920 || glcf->upstream.ssl_certificate_key->lengths) |
7233 | 4921 { |
7833
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4922 glcf->upstream.ssl_passwords = |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4923 ngx_ssl_preserve_passwords(cf, glcf->upstream.ssl_passwords); |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4924 if (glcf->upstream.ssl_passwords == NULL) { |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4925 return NGX_ERROR; |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4926 } |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4927 |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4928 } else { |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4929 if (ngx_ssl_certificate(cf, glcf->upstream.ssl, |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4930 &glcf->upstream.ssl_certificate->value, |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4931 &glcf->upstream.ssl_certificate_key->value, |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4932 glcf->upstream.ssl_passwords) |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4933 != NGX_OK) |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4934 { |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4935 return NGX_ERROR; |
3ab8e1e2f0f7
Upstream: variables support in certificates.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7831
diff
changeset
|
4936 } |
7233 | 4937 } |
4938 } | |
4939 | |
4940 if (glcf->upstream.ssl_verify) { | |
4941 if (glcf->ssl_trusted_certificate.len == 0) { | |
4942 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
4943 "no grpc_ssl_trusted_certificate for grpc_ssl_verify"); | |
4944 return NGX_ERROR; | |
4945 } | |
4946 | |
4947 if (ngx_ssl_trusted_certificate(cf, glcf->upstream.ssl, | |
4948 &glcf->ssl_trusted_certificate, | |
4949 glcf->ssl_verify_depth) | |
4950 != NGX_OK) | |
4951 { | |
4952 return NGX_ERROR; | |
4953 } | |
4954 | |
4955 if (ngx_ssl_crl(cf, glcf->upstream.ssl, &glcf->ssl_crl) != NGX_OK) { | |
4956 return NGX_ERROR; | |
4957 } | |
4958 } | |
4959 | |
7320
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4960 if (ngx_ssl_client_session_cache(cf, glcf->upstream.ssl, |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4961 glcf->upstream.ssl_session_reuse) |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4962 != NGX_OK) |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4963 { |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4964 return NGX_ERROR; |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4965 } |
696df3ac27ac
SSL: save sessions for upstream peers using a callback function.
Sergey Kandaurov <pluknet@nginx.com>
parents:
7305
diff
changeset
|
4966 |
7233 | 4967 #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation |
4968 | |
4969 if (SSL_CTX_set_alpn_protos(glcf->upstream.ssl->ctx, | |
4970 (u_char *) "\x02h2", 3) | |
4971 != 0) | |
4972 { | |
4973 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, | |
4974 "SSL_CTX_set_alpn_protos() failed"); | |
4975 return NGX_ERROR; | |
4976 } | |
4977 | |
4978 #endif | |
4979 | |
7730
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4980 if (ngx_ssl_conf_commands(cf, glcf->upstream.ssl, glcf->ssl_conf_commands) |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4981 != NGX_OK) |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4982 { |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4983 return NGX_ERROR; |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4984 } |
1a719ee45526
Upstream: proxy_ssl_conf_command and friends.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7728
diff
changeset
|
4985 |
7233 | 4986 return NGX_OK; |
4987 } | |
4988 | |
4989 #endif |