507
|
1
|
|
2 /*
|
|
3 * Copyright (C) Igor Sysoev
|
|
4 */
|
|
5
|
|
6
|
|
7 #include <ngx_config.h>
|
|
8 #include <ngx_core.h>
|
|
9 #include <ngx_event.h>
|
|
10 #include <ngx_http.h>
|
|
11
|
|
12
|
509
|
13 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t;
|
|
14
|
|
15 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r,
|
|
16 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr);
|
507
|
17
|
509
|
18 struct ngx_http_proxy_redirect_s {
|
|
19 ngx_http_proxy_redirect_pt handler;
|
|
20 ngx_str_t redirect;
|
507
|
21
|
509
|
22 union {
|
|
23 ngx_str_t text;
|
|
24
|
|
25 struct {
|
|
26 void *lengths;
|
|
27 void *values;
|
|
28 } vars;
|
507
|
29
|
509
|
30 void *regex;
|
|
31 } replacement;
|
|
32 };
|
|
33
|
|
34
|
|
35 typedef struct {
|
|
36 ngx_http_upstream_conf_t upstream;
|
|
37
|
|
38 ngx_peers_t *peers;
|
507
|
39
|
573
|
40 ngx_array_t *flushes;
|
509
|
41 ngx_array_t *headers_set_len;
|
|
42 ngx_array_t *headers_set;
|
|
43 ngx_hash_t *headers_set_hash;
|
|
44
|
|
45 ngx_array_t *headers_source;
|
|
46 ngx_array_t *headers_names;
|
507
|
47
|
509
|
48 ngx_array_t *redirects;
|
507
|
49
|
561
|
50 ngx_str_t method;
|
509
|
51 ngx_str_t host_header;
|
|
52 ngx_str_t port_text;
|
|
53
|
|
54 ngx_flag_t redirect;
|
507
|
55 } ngx_http_proxy_loc_conf_t;
|
|
56
|
|
57
|
|
58 typedef struct {
|
509
|
59 ngx_uint_t status;
|
|
60 ngx_uint_t status_count;
|
|
61 u_char *status_start;
|
|
62 u_char *status_end;
|
|
63 } ngx_http_proxy_ctx_t;
|
507
|
64
|
|
65
|
509
|
66 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
|
507
|
67
|
|
68
|
|
69 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r);
|
|
70 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r);
|
509
|
71 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r);
|
|
72 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
|
|
73 ngx_http_proxy_ctx_t *p);
|
507
|
74 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r);
|
|
75 static void ngx_http_proxy_abort_request(ngx_http_request_t *r);
|
|
76 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r,
|
|
77 ngx_int_t rc);
|
|
78
|
573
|
79 static ngx_int_t ngx_http_proxy_host_variable(ngx_http_request_t *r,
|
|
80 ngx_http_variable_value_t *v, uintptr_t data);
|
|
81 static ngx_int_t ngx_http_proxy_port_variable(ngx_http_request_t *r,
|
|
82 ngx_http_variable_value_t *v, uintptr_t data);
|
|
83 static ngx_int_t
|
509
|
84 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
573
|
85 ngx_http_variable_value_t *v, uintptr_t data);
|
509
|
86 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r,
|
|
87 ngx_table_elt_t *h, size_t prefix);
|
507
|
88
|
509
|
89 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf);
|
507
|
90 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
|
|
91 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf,
|
|
92 void *parent, void *child);
|
|
93
|
|
94 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
95 void *conf);
|
509
|
96 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
97 void *conf);
|
507
|
98
|
|
99 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data);
|
|
100
|
509
|
101
|
507
|
102 static ngx_conf_post_t ngx_http_proxy_lowat_post =
|
509
|
103 { ngx_http_proxy_lowat_check };
|
|
104
|
507
|
105
|
|
106 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
|
|
107 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
|
|
108 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
|
|
109 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
|
|
110 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
|
|
111 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
|
|
112 { ngx_null_string, 0 }
|
|
113 };
|
|
114
|
|
115
|
|
116 static ngx_command_t ngx_http_proxy_commands[] = {
|
|
117
|
|
118 { ngx_string("proxy_pass"),
|
|
119 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
120 ngx_http_proxy_pass,
|
|
121 NGX_HTTP_LOC_CONF_OFFSET,
|
|
122 0,
|
|
123 NULL },
|
|
124
|
509
|
125 { ngx_string("proxy_redirect"),
|
|
126 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
|
|
127 ngx_http_proxy_redirect,
|
|
128 NGX_HTTP_LOC_CONF_OFFSET,
|
|
129 0,
|
|
130 NULL },
|
|
131
|
507
|
132 { ngx_string("proxy_connect_timeout"),
|
|
133 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
134 ngx_conf_set_msec_slot,
|
|
135 NGX_HTTP_LOC_CONF_OFFSET,
|
|
136 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout),
|
|
137 NULL },
|
|
138
|
|
139 { ngx_string("proxy_send_timeout"),
|
|
140 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
141 ngx_conf_set_msec_slot,
|
|
142 NGX_HTTP_LOC_CONF_OFFSET,
|
|
143 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_timeout),
|
|
144 NULL },
|
|
145
|
|
146 { ngx_string("proxy_send_lowat"),
|
|
147 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
148 ngx_conf_set_size_slot,
|
|
149 NGX_HTTP_LOC_CONF_OFFSET,
|
|
150 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
|
|
151 &ngx_http_proxy_lowat_post },
|
|
152
|
509
|
153 { ngx_string("proxy_redirect_errors"),
|
|
154 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
155 ngx_conf_set_flag_slot,
|
|
156 NGX_HTTP_LOC_CONF_OFFSET,
|
|
157 offsetof(ngx_http_proxy_loc_conf_t, upstream.redirect_errors),
|
|
158 NULL },
|
|
159
|
|
160 { ngx_string("proxy_set_header"),
|
|
161 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
|
|
162 ngx_conf_set_table_elt_slot,
|
507
|
163 NGX_HTTP_LOC_CONF_OFFSET,
|
509
|
164 offsetof(ngx_http_proxy_loc_conf_t, headers_source),
|
507
|
165 NULL },
|
|
166
|
509
|
167 { ngx_string("proxy_method"),
|
|
168 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
561
|
169 ngx_conf_set_str_slot,
|
509
|
170 NGX_HTTP_LOC_CONF_OFFSET,
|
561
|
171 offsetof(ngx_http_proxy_loc_conf_t, method),
|
|
172 NULL },
|
509
|
173
|
|
174 { ngx_string("proxy_pass_request_headers"),
|
507
|
175 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
176 ngx_conf_set_flag_slot,
|
|
177 NGX_HTTP_LOC_CONF_OFFSET,
|
509
|
178 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers),
|
507
|
179 NULL },
|
|
180
|
509
|
181 { ngx_string("proxy_pass_request_body"),
|
507
|
182 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
183 ngx_conf_set_flag_slot,
|
|
184 NGX_HTTP_LOC_CONF_OFFSET,
|
509
|
185 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
|
507
|
186 NULL },
|
|
187
|
|
188 { ngx_string("proxy_header_buffer_size"),
|
|
189 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
190 ngx_conf_set_size_slot,
|
|
191 NGX_HTTP_LOC_CONF_OFFSET,
|
|
192 offsetof(ngx_http_proxy_loc_conf_t, upstream.header_buffer_size),
|
|
193 NULL },
|
|
194
|
|
195 { ngx_string("proxy_read_timeout"),
|
|
196 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
197 ngx_conf_set_msec_slot,
|
|
198 NGX_HTTP_LOC_CONF_OFFSET,
|
|
199 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout),
|
|
200 NULL },
|
|
201
|
|
202 { ngx_string("proxy_buffers"),
|
|
203 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
|
|
204 ngx_conf_set_bufs_slot,
|
|
205 NGX_HTTP_LOC_CONF_OFFSET,
|
|
206 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs),
|
|
207 NULL },
|
|
208
|
|
209 { ngx_string("proxy_busy_buffers_size"),
|
|
210 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
211 ngx_conf_set_size_slot,
|
|
212 NGX_HTTP_LOC_CONF_OFFSET,
|
529
|
213 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf),
|
507
|
214 NULL },
|
|
215
|
|
216 { ngx_string("proxy_temp_path"),
|
|
217 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
|
|
218 ngx_conf_set_path_slot,
|
|
219 NGX_HTTP_LOC_CONF_OFFSET,
|
|
220 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path),
|
|
221 (void *) ngx_garbage_collector_temp_handler },
|
|
222
|
|
223 { ngx_string("proxy_max_temp_file_size"),
|
|
224 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
225 ngx_conf_set_size_slot,
|
|
226 NGX_HTTP_LOC_CONF_OFFSET,
|
529
|
227 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_temp_file_size_conf),
|
507
|
228 NULL },
|
|
229
|
|
230 { ngx_string("proxy_temp_file_write_size"),
|
|
231 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
232 ngx_conf_set_size_slot,
|
|
233 NGX_HTTP_LOC_CONF_OFFSET,
|
529
|
234 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf),
|
507
|
235 NULL },
|
|
236
|
|
237 { ngx_string("proxy_next_upstream"),
|
547
|
238 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
|
507
|
239 ngx_conf_set_bitmask_slot,
|
|
240 NGX_HTTP_LOC_CONF_OFFSET,
|
|
241 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
|
|
242 &ngx_http_proxy_next_upstream_masks },
|
|
243
|
561
|
244 { ngx_string("proxy_upstream_max_fails"),
|
|
245 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
246 ngx_conf_set_num_slot,
|
|
247 NGX_HTTP_LOC_CONF_OFFSET,
|
|
248 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_fails),
|
|
249 NULL },
|
|
250
|
|
251 { ngx_string("proxy_upstream_fail_timeout"),
|
|
252 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
|
|
253 ngx_conf_set_sec_slot,
|
|
254 NGX_HTTP_LOC_CONF_OFFSET,
|
|
255 offsetof(ngx_http_proxy_loc_conf_t, upstream.fail_timeout),
|
|
256 NULL },
|
|
257
|
509
|
258 { ngx_string("proxy_pass_x_powered_by"),
|
|
259 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
260 ngx_conf_set_flag_slot,
|
|
261 NGX_HTTP_LOC_CONF_OFFSET,
|
|
262 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_powered_by),
|
|
263 NULL },
|
|
264
|
507
|
265 { ngx_string("proxy_pass_server"),
|
|
266 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
267 ngx_conf_set_flag_slot,
|
|
268 NGX_HTTP_LOC_CONF_OFFSET,
|
509
|
269 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_server),
|
507
|
270 NULL },
|
|
271
|
|
272 { ngx_string("proxy_pass_x_accel_expires"),
|
|
273 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
|
|
274 ngx_conf_set_flag_slot,
|
|
275 NGX_HTTP_LOC_CONF_OFFSET,
|
509
|
276 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_x_accel_expires),
|
507
|
277 NULL },
|
|
278
|
|
279 ngx_null_command
|
|
280 };
|
|
281
|
|
282
|
|
283 ngx_http_module_t ngx_http_proxy_module_ctx = {
|
509
|
284 ngx_http_proxy_add_variables, /* preconfiguration */
|
|
285 NULL, /* postconfiguration */
|
507
|
286
|
|
287 NULL, /* create main configuration */
|
|
288 NULL, /* init main configuration */
|
|
289
|
|
290 NULL, /* create server configuration */
|
|
291 NULL, /* merge server configuration */
|
|
292
|
|
293 ngx_http_proxy_create_loc_conf, /* create location configration */
|
|
294 ngx_http_proxy_merge_loc_conf /* merge location configration */
|
|
295 };
|
|
296
|
|
297
|
|
298 ngx_module_t ngx_http_proxy_module = {
|
509
|
299 NGX_MODULE_V1,
|
507
|
300 &ngx_http_proxy_module_ctx, /* module context */
|
|
301 ngx_http_proxy_commands, /* module directives */
|
|
302 NGX_HTTP_MODULE, /* module type */
|
541
|
303 NULL, /* init master */
|
509
|
304 NULL, /* init module */
|
541
|
305 NULL, /* init process */
|
|
306 NULL, /* init thread */
|
|
307 NULL, /* exit thread */
|
|
308 NULL, /* exit process */
|
|
309 NULL, /* exit master */
|
|
310 NGX_MODULE_V1_PADDING
|
507
|
311 };
|
|
312
|
|
313
|
|
314 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
|
|
315
|
509
|
316
|
|
317 static ngx_table_elt_t ngx_http_proxy_headers[] = {
|
517
|
318 { 0, ngx_string("Host"), ngx_string("$proxy_host") },
|
|
319 { 0, ngx_string("Connection"), ngx_string("close") },
|
509
|
320 { 0, ngx_null_string, ngx_null_string }
|
|
321 };
|
|
322
|
|
323
|
|
324 static ngx_http_variable_t ngx_http_proxy_vars[] = {
|
|
325
|
|
326 { ngx_string("proxy_host"), ngx_http_proxy_host_variable, 0,
|
533
|
327 NGX_HTTP_VAR_CHANGABLE, 0 },
|
509
|
328
|
|
329 { ngx_string("proxy_port"), ngx_http_proxy_port_variable, 0,
|
533
|
330 NGX_HTTP_VAR_CHANGABLE, 0 },
|
509
|
331
|
|
332 { ngx_string("proxy_add_x_forwarded_for"),
|
533
|
333 ngx_http_proxy_add_x_forwarded_for_variable, 0, 0, 0 },
|
509
|
334
|
|
335 #if 0
|
533
|
336 { ngx_string("proxy_add_via"), NULL, 0, 0, 0 },
|
509
|
337 #endif
|
|
338
|
533
|
339 { ngx_null_string, NULL, 0, 0, 0 }
|
509
|
340 };
|
507
|
341
|
|
342
|
|
343 static ngx_int_t
|
|
344 ngx_http_proxy_handler(ngx_http_request_t *r)
|
|
345 {
|
|
346 ngx_int_t rc;
|
|
347 ngx_http_upstream_t *u;
|
|
348 ngx_http_proxy_loc_conf_t *plcf;
|
|
349
|
|
350 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
351
|
|
352 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
353 if (u == NULL) {
|
|
354 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
355 }
|
|
356
|
|
357 u->peer.log = r->connection->log;
|
|
358 u->peer.log_error = NGX_ERROR_ERR;
|
|
359 u->peer.peers = plcf->peers;
|
|
360 u->peer.tries = plcf->peers->number;
|
|
361 #if (NGX_THREADS)
|
|
362 u->peer.lock = &r->connection->lock;
|
|
363 #endif
|
|
364
|
|
365 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module;
|
|
366
|
|
367 u->conf = &plcf->upstream;
|
|
368
|
|
369 u->create_request = ngx_http_proxy_create_request;
|
|
370 u->reinit_request = ngx_http_proxy_reinit_request;
|
509
|
371 u->process_header = ngx_http_proxy_process_status_line;
|
507
|
372 u->abort_request = ngx_http_proxy_abort_request;
|
|
373 u->finalize_request = ngx_http_proxy_finalize_request;
|
|
374
|
509
|
375 if (plcf->redirects) {
|
|
376 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
|
|
377 }
|
|
378
|
507
|
379 u->pipe.input_filter = ngx_event_pipe_copy_input_filter;
|
|
380
|
509
|
381 u->accel = 1;
|
507
|
382
|
|
383 r->upstream = u;
|
|
384
|
|
385 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
|
|
386
|
|
387 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
388 return rc;
|
|
389 }
|
|
390
|
|
391 return NGX_DONE;
|
|
392 }
|
|
393
|
|
394
|
|
395 static ngx_int_t
|
|
396 ngx_http_proxy_create_request(ngx_http_request_t *r)
|
|
397 {
|
509
|
398 size_t len, loc_len;
|
|
399 ngx_uint_t i, key;
|
|
400 uintptr_t escape;
|
|
401 ngx_buf_t *b;
|
561
|
402 ngx_str_t *hh, method;
|
509
|
403 ngx_chain_t *cl, *body;
|
|
404 ngx_list_part_t *part;
|
|
405 ngx_table_elt_t *header;
|
|
406 ngx_http_upstream_t *u;
|
|
407 ngx_http_script_code_pt code;
|
|
408 ngx_http_script_engine_t e, le;
|
|
409 ngx_http_proxy_loc_conf_t *plcf;
|
|
410 ngx_http_script_len_code_pt lcode;
|
507
|
411
|
|
412 u = r->upstream;
|
|
413
|
|
414 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
415
|
|
416 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
|
|
417
|
561
|
418 if (u->method.len) {
|
|
419 /* HEAD was changed to GET to cache response */
|
|
420 method = u->method;
|
|
421 method.len++;
|
|
422
|
|
423 } else if (plcf->method.len) {
|
|
424 method = plcf->method;
|
|
425
|
507
|
426 } else {
|
561
|
427 method = r->method_name;
|
|
428 method.len++;
|
507
|
429 }
|
|
430
|
561
|
431 len += method.len + u->conf->uri.len;
|
|
432
|
507
|
433 escape = 0;
|
509
|
434
|
573
|
435 loc_len = r->valid_location ? u->conf->location.len : 0;
|
509
|
436
|
555
|
437 if (u->conf->uri.len == 0 && r->valid_unparsed_uri) {
|
539
|
438 len += r->unparsed_uri.len;
|
507
|
439
|
|
440 } else {
|
|
441 if (r->quoted_uri) {
|
509
|
442 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
|
|
443 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
507
|
444 }
|
|
445
|
509
|
446 len += r->uri.len - loc_len + escape + sizeof("?") - 1 + r->args.len;
|
507
|
447 }
|
|
448
|
509
|
449 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
507
|
450
|
573
|
451 ngx_http_script_flush_no_cachable_variables(r, plcf->flushes);
|
|
452
|
509
|
453 le.ip = plcf->headers_set_len->elts;
|
|
454 le.request = r;
|
573
|
455 le.flushed = 1;
|
507
|
456
|
509
|
457 while (*(uintptr_t *) le.ip) {
|
|
458 while (*(uintptr_t *) le.ip) {
|
|
459 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
460 len += lcode(&le);
|
|
461 }
|
|
462 le.ip += sizeof(uintptr_t);
|
507
|
463 }
|
|
464
|
|
465
|
|
466 hh = (ngx_str_t *) plcf->headers_set_hash->buckets;
|
|
467
|
509
|
468 if (plcf->upstream.pass_request_headers) {
|
|
469 part = &r->headers_in.headers.part;
|
|
470 header = part->elts;
|
|
471
|
|
472 for (i = 0; /* void */; i++) {
|
507
|
473
|
509
|
474 if (i >= part->nelts) {
|
|
475 if (part->next == NULL) {
|
|
476 break;
|
|
477 }
|
|
478
|
|
479 part = part->next;
|
|
480 header = part->elts;
|
|
481 i = 0;
|
507
|
482 }
|
|
483
|
509
|
484 key = header[i].hash % plcf->headers_set_hash->hash_size;
|
507
|
485
|
509
|
486 if (hh[key].len == header[i].key.len
|
|
487 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
|
|
488 {
|
|
489 continue;
|
|
490 }
|
|
491
|
|
492 len += header[i].key.len + sizeof(": ") - 1
|
|
493 + header[i].value.len + sizeof(CRLF) - 1;
|
507
|
494 }
|
509
|
495 }
|
507
|
496
|
|
497
|
|
498 b = ngx_create_temp_buf(r->pool, len);
|
|
499 if (b == NULL) {
|
|
500 return NGX_ERROR;
|
|
501 }
|
|
502
|
|
503 cl = ngx_alloc_chain_link(r->pool);
|
|
504 if (cl == NULL) {
|
|
505 return NGX_ERROR;
|
|
506 }
|
|
507
|
|
508 cl->buf = b;
|
|
509
|
|
510
|
|
511 /* the request line */
|
|
512
|
573
|
513 b->last = ngx_copy(b->last, method.data, method.len);
|
507
|
514
|
555
|
515 u->uri.data = b->last;
|
|
516
|
|
517 if (u->conf->uri.len == 0 && r->valid_unparsed_uri) {
|
573
|
518 b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);
|
|
519
|
507
|
520 } else {
|
555
|
521 if (r->valid_location) {
|
573
|
522 b->last = ngx_copy(b->last, u->conf->uri.data, u->conf->uri.len);
|
555
|
523 }
|
551
|
524
|
507
|
525 if (escape) {
|
509
|
526 ngx_escape_uri(b->last, r->uri.data + loc_len,
|
|
527 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
528 b->last += r->uri.len - loc_len + escape;
|
507
|
529
|
|
530 } else {
|
573
|
531 b->last = ngx_copy(b->last, r->uri.data + loc_len,
|
|
532 r->uri.len - loc_len);
|
507
|
533 }
|
|
534
|
|
535 if (r->args.len > 0) {
|
|
536 *b->last++ = '?';
|
573
|
537 b->last = ngx_copy(b->last, r->args.data, r->args.len);
|
507
|
538 }
|
|
539 }
|
|
540
|
555
|
541 u->uri.len = b->last - u->uri.data;
|
|
542
|
507
|
543 b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
|
|
544 sizeof(ngx_http_proxy_version) - 1);
|
|
545
|
|
546
|
|
547 e.ip = plcf->headers_set->elts;
|
|
548 e.pos = b->last;
|
509
|
549 e.request = r;
|
573
|
550 e.flushed = 1;
|
507
|
551
|
509
|
552 le.ip = plcf->headers_set_len->elts;
|
|
553
|
|
554 while (*(uintptr_t *) le.ip) {
|
|
555 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
515
|
556
|
|
557 /* skip the header line name length */
|
|
558 (void) lcode(&le);
|
509
|
559
|
|
560 if (*(ngx_http_script_len_code_pt *) le.ip) {
|
|
561
|
|
562 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
563 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
564 }
|
|
565
|
|
566 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
|
|
567
|
|
568 } else {
|
|
569 e.skip = 0;
|
|
570 }
|
|
571
|
|
572 le.ip += sizeof(uintptr_t);
|
|
573
|
|
574 while (*(uintptr_t *) e.ip) {
|
|
575 code = *(ngx_http_script_code_pt *) e.ip;
|
|
576 code((ngx_http_script_engine_t *) &e);
|
|
577 }
|
|
578 e.ip += sizeof(uintptr_t);
|
507
|
579 }
|
|
580
|
|
581 b->last = e.pos;
|
|
582
|
|
583
|
509
|
584 if (plcf->upstream.pass_request_headers) {
|
|
585 part = &r->headers_in.headers.part;
|
|
586 header = part->elts;
|
507
|
587
|
509
|
588 for (i = 0; /* void */; i++) {
|
507
|
589
|
509
|
590 if (i >= part->nelts) {
|
|
591 if (part->next == NULL) {
|
|
592 break;
|
|
593 }
|
|
594
|
|
595 part = part->next;
|
|
596 header = part->elts;
|
|
597 i = 0;
|
507
|
598 }
|
|
599
|
509
|
600 key = header[i].hash % plcf->headers_set_hash->hash_size;
|
507
|
601
|
509
|
602 if (hh[key].len == header[i].key.len
|
|
603 && ngx_strcasecmp(hh[key].data, header[i].key.data) == 0)
|
|
604 {
|
|
605 continue;
|
|
606 }
|
507
|
607
|
573
|
608 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
|
507
|
609
|
509
|
610 *b->last++ = ':'; *b->last++ = ' ';
|
507
|
611
|
573
|
612 b->last = ngx_copy(b->last, header[i].value.data,
|
|
613 header[i].value.len);
|
507
|
614
|
509
|
615 *b->last++ = CR; *b->last++ = LF;
|
507
|
616
|
509
|
617 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
618 "http proxy header: \"%V: %V\"",
|
|
619 &header[i].key, &header[i].value);
|
|
620 }
|
507
|
621 }
|
|
622
|
|
623 /* add "\r\n" at the header end */
|
|
624 *b->last++ = CR; *b->last++ = LF;
|
|
625
|
|
626 #if (NGX_DEBUG)
|
|
627 {
|
|
628 ngx_str_t s;
|
|
629
|
|
630 s.len = b->last - b->pos;
|
|
631 s.data = b->pos;
|
|
632 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
633 "http proxy header:\n\"%V\"", &s);
|
|
634 }
|
|
635 #endif
|
|
636
|
509
|
637 if (plcf->upstream.pass_request_body) {
|
|
638
|
|
639 body = u->request_bufs;
|
|
640 u->request_bufs = cl;
|
|
641
|
|
642 while (body) {
|
|
643 b = ngx_alloc_buf(r->pool);
|
|
644 if (b == NULL) {
|
|
645 return NGX_ERROR;
|
|
646 }
|
|
647
|
|
648 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
|
|
649
|
|
650 cl->next = ngx_alloc_chain_link(r->pool);
|
|
651 if (cl->next == NULL) {
|
|
652 return NGX_ERROR;
|
|
653 }
|
|
654
|
|
655 cl = cl->next;
|
|
656 cl->buf = b;
|
|
657
|
|
658 body = body->next;
|
|
659 }
|
|
660
|
|
661 } else {
|
|
662 u->request_bufs = cl;
|
|
663 }
|
|
664
|
|
665 cl->next = NULL;
|
|
666
|
507
|
667 return NGX_OK;
|
|
668 }
|
|
669
|
|
670
|
|
671 static ngx_int_t
|
|
672 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
|
|
673 {
|
509
|
674 ngx_http_proxy_ctx_t *p;
|
|
675
|
|
676 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
677
|
|
678 if (p == NULL) {
|
|
679 return NGX_OK;
|
|
680 }
|
|
681
|
|
682 p->status = 0;
|
|
683 p->status_count = 0;
|
|
684 p->status_start = NULL;
|
|
685 p->status_end = NULL;
|
|
686
|
|
687 r->upstream->process_header = ngx_http_proxy_process_status_line;
|
|
688
|
|
689 return NGX_OK;
|
|
690 }
|
|
691
|
|
692
|
|
693 static ngx_int_t
|
|
694 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
|
|
695 {
|
|
696 ngx_int_t rc;
|
|
697 ngx_http_upstream_t *u;
|
|
698 ngx_http_proxy_ctx_t *p;
|
|
699
|
|
700 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
701
|
|
702 if (p == NULL) {
|
|
703 p = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
|
|
704 if (p == NULL) {
|
|
705 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
706 }
|
|
707
|
|
708 ngx_http_set_ctx(r, p, ngx_http_proxy_module);
|
|
709 }
|
|
710
|
|
711 rc = ngx_http_proxy_parse_status_line(r, p);
|
|
712
|
|
713 if (rc == NGX_AGAIN) {
|
|
714 return rc;
|
|
715 }
|
|
716
|
|
717 u = r->upstream;
|
|
718
|
|
719 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
|
|
720 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
721 "upstream sent no valid HTTP/1.0 header");
|
|
722
|
|
723 if (u->accel) {
|
|
724 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
725 }
|
|
726
|
|
727 r->http_version = NGX_HTTP_VERSION_9;
|
|
728 p->status = NGX_HTTP_OK;
|
|
729
|
|
730 return NGX_OK;
|
|
731 }
|
|
732
|
529
|
733 u->headers_in.status_n = p->status;
|
509
|
734 u->state->status = p->status;
|
|
735
|
529
|
736 u->headers_in.status_line.len = p->status_end - p->status_start;
|
|
737 u->headers_in.status_line.data = ngx_palloc(r->pool,
|
|
738 u->headers_in.status_line.len);
|
|
739 if (u->headers_in.status_line.data == NULL) {
|
509
|
740 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
741 }
|
573
|
742
|
529
|
743 ngx_memcpy(u->headers_in.status_line.data, p->status_start,
|
|
744 u->headers_in.status_line.len);
|
509
|
745
|
|
746 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
747 "http proxy status %ui \"%V\"",
|
529
|
748 u->headers_in.status, &u->headers_in.status_line);
|
509
|
749
|
|
750 u->process_header = ngx_http_proxy_process_header;
|
|
751
|
|
752 return ngx_http_proxy_process_header(r);
|
|
753 }
|
|
754
|
|
755
|
|
756 static ngx_int_t
|
|
757 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, ngx_http_proxy_ctx_t *p)
|
|
758 {
|
|
759 u_char ch;
|
|
760 u_char *pos;
|
|
761 ngx_http_upstream_t *u;
|
|
762 enum {
|
|
763 sw_start = 0,
|
|
764 sw_H,
|
|
765 sw_HT,
|
|
766 sw_HTT,
|
|
767 sw_HTTP,
|
|
768 sw_first_major_digit,
|
|
769 sw_major_digit,
|
|
770 sw_first_minor_digit,
|
|
771 sw_minor_digit,
|
|
772 sw_status,
|
|
773 sw_space_after_status,
|
|
774 sw_status_text,
|
|
775 sw_almost_done
|
|
776 } state;
|
|
777
|
|
778 u = r->upstream;
|
|
779
|
|
780 state = r->state;
|
|
781
|
|
782 for (pos = u->header_in.pos; pos < u->header_in.last; pos++) {
|
|
783 ch = *pos;
|
|
784
|
|
785 switch (state) {
|
|
786
|
|
787 /* "HTTP/" */
|
|
788 case sw_start:
|
|
789 switch (ch) {
|
|
790 case 'H':
|
|
791 state = sw_H;
|
|
792 break;
|
|
793 default:
|
|
794 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
795 }
|
|
796 break;
|
|
797
|
|
798 case sw_H:
|
|
799 switch (ch) {
|
|
800 case 'T':
|
|
801 state = sw_HT;
|
|
802 break;
|
|
803 default:
|
|
804 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
805 }
|
|
806 break;
|
|
807
|
|
808 case sw_HT:
|
|
809 switch (ch) {
|
|
810 case 'T':
|
|
811 state = sw_HTT;
|
|
812 break;
|
|
813 default:
|
|
814 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
815 }
|
|
816 break;
|
|
817
|
|
818 case sw_HTT:
|
|
819 switch (ch) {
|
|
820 case 'P':
|
|
821 state = sw_HTTP;
|
|
822 break;
|
|
823 default:
|
|
824 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
825 }
|
|
826 break;
|
|
827
|
|
828 case sw_HTTP:
|
|
829 switch (ch) {
|
|
830 case '/':
|
|
831 state = sw_first_major_digit;
|
|
832 break;
|
|
833 default:
|
|
834 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
835 }
|
|
836 break;
|
|
837
|
|
838 /* the first digit of major HTTP version */
|
|
839 case sw_first_major_digit:
|
|
840 if (ch < '1' || ch > '9') {
|
|
841 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
842 }
|
|
843
|
|
844 state = sw_major_digit;
|
|
845 break;
|
|
846
|
|
847 /* the major HTTP version or dot */
|
|
848 case sw_major_digit:
|
|
849 if (ch == '.') {
|
|
850 state = sw_first_minor_digit;
|
|
851 break;
|
|
852 }
|
|
853
|
|
854 if (ch < '0' || ch > '9') {
|
|
855 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
856 }
|
|
857
|
|
858 break;
|
|
859
|
|
860 /* the first digit of minor HTTP version */
|
|
861 case sw_first_minor_digit:
|
|
862 if (ch < '0' || ch > '9') {
|
|
863 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
864 }
|
|
865
|
|
866 state = sw_minor_digit;
|
|
867 break;
|
|
868
|
|
869 /* the minor HTTP version or the end of the request line */
|
|
870 case sw_minor_digit:
|
|
871 if (ch == ' ') {
|
|
872 state = sw_status;
|
|
873 break;
|
|
874 }
|
|
875
|
|
876 if (ch < '0' || ch > '9') {
|
|
877 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
878 }
|
|
879
|
|
880 break;
|
|
881
|
|
882 /* HTTP status code */
|
|
883 case sw_status:
|
|
884 if (ch < '0' || ch > '9') {
|
|
885 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
886 }
|
|
887
|
|
888 p->status = p->status * 10 + ch - '0';
|
|
889
|
|
890 if (++p->status_count == 3) {
|
|
891 state = sw_space_after_status;
|
|
892 p->status_start = pos - 2;
|
|
893 }
|
|
894
|
|
895 break;
|
|
896
|
|
897 /* space or end of line */
|
|
898 case sw_space_after_status:
|
|
899 switch (ch) {
|
|
900 case ' ':
|
|
901 state = sw_status_text;
|
|
902 break;
|
|
903 case '.': /* IIS may send 403.1, 403.2, etc */
|
|
904 state = sw_status_text;
|
|
905 break;
|
|
906 case CR:
|
|
907 state = sw_almost_done;
|
|
908 break;
|
|
909 case LF:
|
|
910 goto done;
|
|
911 default:
|
|
912 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
913 }
|
|
914 break;
|
|
915
|
|
916 /* any text until end of line */
|
|
917 case sw_status_text:
|
|
918 switch (ch) {
|
|
919 case CR:
|
|
920 state = sw_almost_done;
|
|
921
|
|
922 break;
|
|
923 case LF:
|
|
924 goto done;
|
|
925 }
|
|
926 break;
|
|
927
|
527
|
928 /* end of status line */
|
509
|
929 case sw_almost_done:
|
|
930 p->status_end = pos - 1;
|
|
931 switch (ch) {
|
|
932 case LF:
|
|
933 goto done;
|
|
934 default:
|
|
935 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
936 }
|
|
937 }
|
|
938 }
|
|
939
|
527
|
940 u->header_in.pos = pos;
|
509
|
941 r->state = state;
|
|
942
|
|
943 return NGX_AGAIN;
|
|
944
|
|
945 done:
|
|
946
|
|
947 u->header_in.pos = pos + 1;
|
|
948
|
|
949 if (p->status_end == NULL) {
|
|
950 p->status_end = pos;
|
|
951 }
|
|
952
|
|
953 r->state = sw_start;
|
|
954
|
507
|
955 return NGX_OK;
|
|
956 }
|
|
957
|
|
958
|
|
959 static ngx_int_t
|
|
960 ngx_http_proxy_process_header(ngx_http_request_t *r)
|
|
961 {
|
509
|
962 ngx_int_t rc;
|
|
963 ngx_uint_t key;
|
|
964 ngx_table_elt_t *h;
|
|
965 ngx_http_upstream_header_t *hh;
|
|
966 ngx_http_upstream_main_conf_t *umcf;
|
|
967
|
|
968 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
969 hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets;
|
|
970
|
|
971 for ( ;; ) {
|
|
972
|
|
973 rc = ngx_http_parse_header_line(r, &r->upstream->header_in);
|
|
974
|
|
975 if (rc == NGX_OK) {
|
|
976
|
|
977 /* a header line has been parsed successfully */
|
507
|
978
|
509
|
979 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
980 if (h == NULL) {
|
|
981 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
982 }
|
|
983
|
|
984 h->hash = r->header_hash;
|
|
985
|
|
986 h->key.len = r->header_name_end - r->header_name_start;
|
|
987 h->value.len = r->header_end - r->header_start;
|
|
988
|
|
989 h->key.data = ngx_palloc(r->pool,
|
|
990 h->key.len + 1 + h->value.len + 1);
|
|
991 if (h->key.data == NULL) {
|
|
992 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
993 }
|
|
994
|
|
995 h->value.data = h->key.data + h->key.len + 1;
|
507
|
996
|
509
|
997 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
998 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
999
|
|
1000 key = h->hash % umcf->headers_in_hash.hash_size;
|
|
1001
|
|
1002 if (hh[key].name.len == h->key.len
|
|
1003 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
1004 {
|
|
1005 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
1006 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
1007 }
|
|
1008 }
|
|
1009
|
|
1010 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1011 "http proxy header: \"%V: %V\"",
|
|
1012 &h->key, &h->value);
|
|
1013
|
|
1014 continue;
|
|
1015 }
|
|
1016
|
|
1017 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
1018
|
|
1019 /* a whole header has been parsed successfully */
|
|
1020
|
|
1021 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1022 "http proxy header done");
|
|
1023
|
|
1024 return NGX_OK;
|
|
1025 }
|
|
1026
|
521
|
1027 if (rc == NGX_AGAIN) {
|
|
1028 return NGX_AGAIN;
|
|
1029 }
|
|
1030
|
509
|
1031 /* there was error while a header line parsing */
|
|
1032
|
|
1033 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
1034 ngx_http_upstream_header_errors[rc
|
|
1035 - NGX_HTTP_PARSE_HEADER_ERROR]);
|
|
1036
|
|
1037 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
1038 }
|
507
|
1039 }
|
|
1040
|
|
1041
|
|
1042 static void
|
|
1043 ngx_http_proxy_abort_request(ngx_http_request_t *r)
|
|
1044 {
|
|
1045 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1046 "abort http proxy request");
|
|
1047
|
|
1048 return;
|
|
1049 }
|
|
1050
|
|
1051
|
|
1052 static void
|
|
1053 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
1054 {
|
|
1055 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1056 "finalize http proxy request");
|
|
1057
|
|
1058 return;
|
|
1059 }
|
|
1060
|
|
1061
|
573
|
1062 static ngx_int_t
|
|
1063 ngx_http_proxy_host_variable(ngx_http_request_t *r,
|
|
1064 ngx_http_variable_value_t *v, uintptr_t data)
|
507
|
1065 {
|
509
|
1066 ngx_http_proxy_loc_conf_t *plcf;
|
507
|
1067
|
509
|
1068 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
507
|
1069
|
573
|
1070 v->len = plcf->host_header.len;
|
|
1071 v->valid = 1;
|
|
1072 v->no_cachable = 0;
|
|
1073 v->not_found = 0;
|
|
1074 v->data = plcf->host_header.data;
|
507
|
1075
|
573
|
1076 return NGX_OK;
|
507
|
1077 }
|
|
1078
|
|
1079
|
573
|
1080 static ngx_int_t
|
|
1081 ngx_http_proxy_port_variable(ngx_http_request_t *r,
|
|
1082 ngx_http_variable_value_t *v, uintptr_t data)
|
507
|
1083 {
|
|
1084 ngx_http_proxy_loc_conf_t *plcf;
|
|
1085
|
|
1086 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
1087
|
573
|
1088 v->len = plcf->port_text.len;
|
|
1089 v->valid = 1;
|
|
1090 v->no_cachable = 0;
|
|
1091 v->not_found = 0;
|
|
1092 v->data = plcf->port_text.data;
|
509
|
1093
|
573
|
1094 return NGX_OK;
|
509
|
1095 }
|
|
1096
|
|
1097
|
573
|
1098 static ngx_int_t
|
509
|
1099 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
573
|
1100
|
|
1101 ngx_http_variable_value_t *v, uintptr_t data)
|
509
|
1102 {
|
573
|
1103 u_char *p;
|
509
|
1104
|
573
|
1105 v->valid = 1;
|
|
1106 v->no_cachable = 0;
|
|
1107 v->not_found = 0;
|
509
|
1108
|
|
1109 if (r->headers_in.x_forwarded_for == NULL) {
|
573
|
1110 v->len = r->connection->addr_text.len;
|
|
1111 v->data = r->connection->addr_text.data;
|
|
1112 return NGX_OK;
|
509
|
1113 }
|
|
1114
|
573
|
1115 v->len = r->headers_in.x_forwarded_for->value.len
|
|
1116 + sizeof(", ") - 1 + r->connection->addr_text.len;
|
509
|
1117
|
573
|
1118 p = ngx_palloc(r->pool, v->len);
|
509
|
1119 if (p == NULL) {
|
573
|
1120 return NGX_ERROR;
|
509
|
1121 }
|
|
1122
|
573
|
1123 v->data = p;
|
509
|
1124
|
573
|
1125 p = ngx_copy(p, r->headers_in.x_forwarded_for->value.data,
|
|
1126 r->headers_in.x_forwarded_for->value.len);
|
509
|
1127
|
|
1128 *p++ = ','; *p++ = ' ';
|
|
1129
|
|
1130 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
|
|
1131
|
573
|
1132 return NGX_OK;
|
509
|
1133 }
|
|
1134
|
|
1135
|
|
1136 static ngx_int_t
|
|
1137 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1138 size_t prefix)
|
|
1139 {
|
|
1140 ngx_int_t rc;
|
|
1141 ngx_uint_t i;
|
|
1142 ngx_http_proxy_loc_conf_t *plcf;
|
|
1143 ngx_http_proxy_redirect_t *pr;
|
|
1144
|
|
1145 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
1146
|
|
1147 pr = plcf->redirects->elts;
|
|
1148
|
|
1149 if (pr == NULL) {
|
|
1150 return NGX_DECLINED;
|
|
1151 }
|
|
1152
|
|
1153 for (i = 0; i < plcf->redirects->nelts; i++) {
|
|
1154 rc = pr->handler(r, h, prefix, pr);
|
|
1155
|
|
1156 if (rc != NGX_DECLINED) {
|
|
1157 return rc;
|
|
1158 }
|
|
1159 }
|
|
1160
|
|
1161 return NGX_DECLINED;
|
|
1162 }
|
|
1163
|
|
1164
|
|
1165 static ngx_int_t
|
|
1166 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1167 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
1168 {
|
|
1169 size_t len;
|
|
1170 u_char *data, *p;
|
|
1171
|
|
1172 if (pr->redirect.len > h->value.len - prefix
|
|
1173 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
1174 pr->redirect.len) != 0)
|
|
1175 {
|
|
1176 return NGX_DECLINED;
|
|
1177 }
|
|
1178
|
|
1179 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
|
507
|
1180
|
509
|
1181 data = ngx_palloc(r->pool, len);
|
|
1182 if (data == NULL) {
|
|
1183 return NGX_ERROR;
|
|
1184 }
|
|
1185
|
|
1186 p = data;
|
|
1187
|
573
|
1188 p = ngx_copy(p, h->value.data, prefix);
|
509
|
1189
|
573
|
1190 p = ngx_copy(p, pr->replacement.text.data, pr->replacement.text.len);
|
509
|
1191
|
|
1192 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
|
|
1193 h->value.len - pr->redirect.len - prefix);
|
|
1194
|
|
1195 h->value.len = len;
|
|
1196 h->value.data = data;
|
|
1197
|
|
1198 return NGX_OK;
|
|
1199 }
|
|
1200
|
|
1201
|
|
1202 static ngx_int_t
|
|
1203 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1204 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
1205 {
|
|
1206 size_t len;
|
|
1207 u_char *data, *p;
|
|
1208 ngx_http_script_code_pt code;
|
|
1209 ngx_http_script_engine_t e;
|
|
1210 ngx_http_script_len_code_pt lcode;
|
|
1211
|
|
1212 if (pr->redirect.len > h->value.len - prefix
|
|
1213 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
1214 pr->redirect.len) != 0)
|
|
1215 {
|
|
1216 return NGX_DECLINED;
|
|
1217 }
|
|
1218
|
|
1219 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
1220
|
|
1221 e.ip = pr->replacement.vars.lengths;
|
|
1222 e.request = r;
|
|
1223
|
|
1224 for (len = prefix; *(uintptr_t *) e.ip; len += lcode(&e)) {
|
|
1225 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
|
1226 }
|
|
1227
|
|
1228 data = ngx_palloc(r->pool, len);
|
|
1229 if (data == NULL) {
|
|
1230 return NGX_ERROR;
|
|
1231 }
|
|
1232
|
|
1233 p = data;
|
|
1234
|
573
|
1235 p = ngx_copy(p, h->value.data, prefix);
|
509
|
1236
|
|
1237 e.ip = pr->replacement.vars.values;
|
|
1238 e.pos = p;
|
|
1239
|
|
1240 while (*(uintptr_t *) e.ip) {
|
|
1241 code = *(ngx_http_script_code_pt *) e.ip;
|
|
1242 code(&e);
|
|
1243 }
|
|
1244
|
|
1245 h->value.len = len;
|
|
1246 h->value.data = data;
|
|
1247
|
|
1248 return NGX_OK;
|
|
1249 }
|
|
1250
|
|
1251
|
|
1252 static ngx_int_t
|
|
1253 ngx_http_proxy_add_variables(ngx_conf_t *cf)
|
|
1254 {
|
|
1255 ngx_http_variable_t *var, *v;
|
|
1256
|
|
1257 for (v = ngx_http_proxy_vars; v->name.len; v++) {
|
|
1258 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
1259 if (var == NULL) {
|
|
1260 return NGX_ERROR;
|
|
1261 }
|
|
1262
|
|
1263 var->handler = v->handler;
|
|
1264 var->data = v->data;
|
|
1265 }
|
|
1266
|
|
1267 return NGX_OK;
|
507
|
1268 }
|
|
1269
|
|
1270
|
|
1271 static void *
|
|
1272 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
|
|
1273 {
|
|
1274 ngx_http_proxy_loc_conf_t *conf;
|
|
1275
|
|
1276 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t));
|
|
1277 if (conf == NULL) {
|
|
1278 return NGX_CONF_ERROR;
|
|
1279 }
|
|
1280
|
|
1281 /*
|
|
1282 * set by ngx_pcalloc():
|
|
1283 *
|
|
1284 * conf->upstream.bufs.num = 0;
|
|
1285 * conf->upstream.path = NULL;
|
|
1286 * conf->upstream.next_upstream = 0;
|
|
1287 * conf->upstream.temp_path = NULL;
|
509
|
1288 * conf->upstream.schema = { 0, NULL };
|
|
1289 * conf->upstream.uri = { 0, NULL };
|
|
1290 * conf->upstream.location = NULL;
|
|
1291 *
|
561
|
1292 * conf->method = NULL;
|
509
|
1293 * conf->headers_source = NULL;
|
|
1294 * conf->headers_set_len = NULL;
|
|
1295 * conf->headers_set = NULL;
|
|
1296 * conf->headers_set_hash = NULL;
|
|
1297 * conf->rewrite_locations = NULL;
|
507
|
1298 */
|
|
1299
|
|
1300 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
1301 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
|
|
1302 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
|
|
1303
|
|
1304 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
|
|
1305 conf->upstream.header_buffer_size = NGX_CONF_UNSET_SIZE;
|
529
|
1306
|
|
1307 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
|
|
1308 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
|
|
1309 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
|
509
|
1310
|
561
|
1311 conf->upstream.max_fails = NGX_CONF_UNSET_UINT;
|
|
1312 conf->upstream.fail_timeout = NGX_CONF_UNSET;
|
|
1313
|
509
|
1314 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
|
|
1315 conf->upstream.pass_request_body = NGX_CONF_UNSET;
|
561
|
1316
|
507
|
1317 conf->upstream.redirect_errors = NGX_CONF_UNSET;
|
|
1318
|
|
1319 /* "proxy_cyclic_temp_file" is disabled */
|
|
1320 conf->upstream.cyclic_temp_file = 0;
|
|
1321
|
509
|
1322 conf->upstream.pass_x_powered_by = NGX_CONF_UNSET;
|
|
1323 conf->upstream.pass_server = NGX_CONF_UNSET;
|
|
1324 conf->upstream.pass_date = 0;
|
|
1325 conf->upstream.pass_x_accel_expires = NGX_CONF_UNSET;
|
507
|
1326
|
509
|
1327 conf->redirect = NGX_CONF_UNSET;
|
507
|
1328
|
|
1329 return conf;
|
|
1330 }
|
|
1331
|
|
1332
|
|
1333 static char *
|
|
1334 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
1335 {
|
|
1336 ngx_http_proxy_loc_conf_t *prev = parent;
|
|
1337 ngx_http_proxy_loc_conf_t *conf = child;
|
|
1338
|
509
|
1339 u_char *p;
|
|
1340 size_t size;
|
|
1341 uintptr_t *code;
|
|
1342 ngx_str_t *name;
|
|
1343 ngx_uint_t i;
|
|
1344 ngx_table_elt_t *src, *s, *h;
|
|
1345 ngx_http_proxy_redirect_t *pr;
|
|
1346 ngx_http_script_compile_t sc;
|
|
1347 ngx_http_script_copy_code_t *copy;
|
|
1348
|
507
|
1349 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
|
|
1350 prev->upstream.connect_timeout, 60000);
|
|
1351
|
|
1352 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
|
|
1353 prev->upstream.send_timeout, 60000);
|
|
1354
|
|
1355 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
|
|
1356 prev->upstream.read_timeout, 60000);
|
|
1357
|
|
1358 ngx_conf_merge_size_value(conf->upstream.send_lowat,
|
|
1359 prev->upstream.send_lowat, 0);
|
|
1360
|
|
1361 ngx_conf_merge_size_value(conf->upstream.header_buffer_size,
|
|
1362 prev->upstream.header_buffer_size,
|
|
1363 (size_t) ngx_pagesize);
|
|
1364
|
|
1365 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
|
|
1366 8, ngx_pagesize);
|
|
1367
|
|
1368 if (conf->upstream.bufs.num < 2) {
|
|
1369 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1370 "there must be at least 2 \"proxy_buffers\"");
|
|
1371 return NGX_CONF_ERROR;
|
|
1372 }
|
|
1373
|
|
1374
|
|
1375 size = conf->upstream.header_buffer_size;
|
|
1376 if (size < conf->upstream.bufs.size) {
|
|
1377 size = conf->upstream.bufs.size;
|
|
1378 }
|
|
1379
|
|
1380
|
529
|
1381 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
|
|
1382 prev->upstream.busy_buffers_size_conf,
|
507
|
1383 NGX_CONF_UNSET_SIZE);
|
|
1384
|
529
|
1385 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
|
507
|
1386 conf->upstream.busy_buffers_size = 2 * size;
|
529
|
1387 } else {
|
|
1388 conf->upstream.busy_buffers_size =
|
|
1389 conf->upstream.busy_buffers_size_conf;
|
|
1390 }
|
|
1391
|
|
1392 if (conf->upstream.busy_buffers_size < size) {
|
507
|
1393 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1394 "\"proxy_busy_buffers_size\" must be equal or bigger than "
|
|
1395 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
1396 "one of the \"proxy_buffers\"");
|
|
1397
|
|
1398 return NGX_CONF_ERROR;
|
529
|
1399 }
|
507
|
1400
|
529
|
1401 if (conf->upstream.busy_buffers_size
|
|
1402 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
|
507
|
1403 {
|
|
1404 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1405 "\"proxy_busy_buffers_size\" must be less than "
|
|
1406 "the size of all \"proxy_buffers\" minus one buffer");
|
|
1407
|
|
1408 return NGX_CONF_ERROR;
|
|
1409 }
|
529
|
1410
|
507
|
1411
|
529
|
1412 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
|
|
1413 prev->upstream.temp_file_write_size_conf,
|
507
|
1414 NGX_CONF_UNSET_SIZE);
|
|
1415
|
529
|
1416 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
|
507
|
1417 conf->upstream.temp_file_write_size = 2 * size;
|
529
|
1418 } else {
|
|
1419 conf->upstream.temp_file_write_size =
|
|
1420 conf->upstream.temp_file_write_size_conf;
|
|
1421 }
|
|
1422
|
|
1423 if (conf->upstream.temp_file_write_size < size) {
|
507
|
1424 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1425 "\"proxy_temp_file_write_size\" must be equal or bigger than "
|
|
1426 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
1427 "one of the \"proxy_buffers\"");
|
|
1428
|
|
1429 return NGX_CONF_ERROR;
|
|
1430 }
|
|
1431
|
529
|
1432 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
|
|
1433 prev->upstream.max_temp_file_size_conf,
|
507
|
1434 NGX_CONF_UNSET_SIZE);
|
|
1435
|
529
|
1436 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
|
507
|
1437 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
|
529
|
1438 } else {
|
|
1439 conf->upstream.max_temp_file_size =
|
|
1440 conf->upstream.max_temp_file_size_conf;
|
|
1441 }
|
507
|
1442
|
529
|
1443 if (conf->upstream.max_temp_file_size != 0
|
|
1444 && conf->upstream.max_temp_file_size < size)
|
507
|
1445 {
|
|
1446 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
561
|
1447 "\"proxy_max_temp_file_size\" must be equal to zero to disable "
|
507
|
1448 "the temporary files usage or must be equal or bigger than "
|
561
|
1449 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
1450 "one of the \"proxy_buffers\"");
|
507
|
1451
|
|
1452 return NGX_CONF_ERROR;
|
|
1453 }
|
|
1454
|
529
|
1455
|
507
|
1456 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
|
|
1457 prev->upstream.next_upstream,
|
|
1458 (NGX_CONF_BITMASK_SET
|
|
1459 |NGX_HTTP_UPSTREAM_FT_ERROR
|
|
1460 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
|
|
1461
|
561
|
1462 ngx_conf_merge_unsigned_value(conf->upstream.max_fails,
|
|
1463 prev->upstream.max_fails, 1);
|
|
1464
|
|
1465 ngx_conf_merge_sec_value(conf->upstream.fail_timeout,
|
|
1466 prev->upstream.fail_timeout, 10);
|
|
1467
|
|
1468 if (conf->peers && conf->peers->number > 1) {
|
|
1469 for (i = 0; i < conf->peers->number; i++) {
|
|
1470 conf->peers->peer[i].weight = 1;
|
|
1471 conf->peers->peer[i].max_fails = conf->upstream.max_fails;
|
|
1472 conf->peers->peer[i].fail_timeout = conf->upstream.fail_timeout;
|
|
1473 }
|
|
1474 }
|
|
1475
|
509
|
1476 ngx_conf_merge_path_value(conf->upstream.temp_path,
|
|
1477 prev->upstream.temp_path,
|
|
1478 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
|
|
1479 ngx_garbage_collector_temp_handler, cf);
|
507
|
1480
|
561
|
1481 if (conf->method.len == 0) {
|
|
1482 conf->method = prev->method;
|
|
1483
|
|
1484 } else {
|
|
1485 conf->method.data[conf->method.len] = ' ';
|
|
1486 conf->method.len++;
|
509
|
1487 }
|
|
1488
|
|
1489 ngx_conf_merge_value(conf->upstream.pass_request_headers,
|
|
1490 prev->upstream.pass_request_headers, 1);
|
|
1491 ngx_conf_merge_value(conf->upstream.pass_request_body,
|
|
1492 prev->upstream.pass_request_body, 1);
|
|
1493
|
529
|
1494 ngx_conf_merge_value(conf->upstream.redirect_errors,
|
509
|
1495 prev->upstream.redirect_errors, 0);
|
|
1496
|
529
|
1497 ngx_conf_merge_value(conf->upstream.pass_x_powered_by,
|
509
|
1498 prev->upstream.pass_x_powered_by, 1);
|
529
|
1499 ngx_conf_merge_value(conf->upstream.pass_server,
|
509
|
1500 prev->upstream.pass_server, 0);
|
529
|
1501 ngx_conf_merge_value(conf->upstream.pass_x_accel_expires,
|
509
|
1502 prev->upstream.pass_x_accel_expires, 0);
|
|
1503
|
|
1504
|
|
1505 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
|
|
1506
|
|
1507 if (conf->redirect) {
|
507
|
1508
|
509
|
1509 if (conf->redirects == NULL) {
|
|
1510 conf->redirects = prev->redirects;
|
|
1511 }
|
|
1512
|
|
1513 if (conf->redirects == NULL && conf->upstream.url.data) {
|
|
1514
|
|
1515 conf->redirects = ngx_array_create(cf->pool, 1,
|
|
1516 sizeof(ngx_http_proxy_redirect_t));
|
|
1517 if (conf->redirects == NULL) {
|
|
1518 return NGX_CONF_ERROR;
|
|
1519 }
|
|
1520
|
|
1521 pr = ngx_array_push(conf->redirects);
|
|
1522 if (pr == NULL) {
|
|
1523 return NGX_CONF_ERROR;
|
|
1524 }
|
|
1525
|
|
1526 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
1527 pr->redirect = conf->upstream.url;
|
573
|
1528 pr->replacement.text = conf->upstream.location;
|
509
|
1529 }
|
|
1530 }
|
|
1531
|
507
|
1532
|
|
1533 if (conf->peers == NULL) {
|
|
1534 conf->peers = prev->peers;
|
|
1535 }
|
|
1536
|
509
|
1537 if (conf->headers_source == NULL) {
|
573
|
1538 conf->flushes = prev->flushes;
|
507
|
1539 conf->headers_set_len = prev->headers_set_len;
|
|
1540 conf->headers_set = prev->headers_set;
|
|
1541 conf->headers_set_hash = prev->headers_set_hash;
|
573
|
1542 conf->headers_source = prev->headers_source;
|
507
|
1543 }
|
|
1544
|
509
|
1545 if (conf->headers_set_hash) {
|
|
1546 return NGX_CONF_OK;
|
|
1547 }
|
|
1548
|
|
1549
|
|
1550 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_str_t));
|
|
1551 if (conf->headers_names == NULL) {
|
|
1552 return NGX_CONF_ERROR;
|
|
1553 }
|
|
1554
|
|
1555 if (conf->headers_source == NULL) {
|
|
1556 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
1557 sizeof(ngx_table_elt_t));
|
|
1558 if (conf->headers_source == NULL) {
|
|
1559 return NGX_CONF_ERROR;
|
|
1560 }
|
|
1561 }
|
507
|
1562
|
509
|
1563 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
|
|
1564 if (conf->headers_set_len == NULL) {
|
|
1565 return NGX_CONF_ERROR;
|
|
1566 }
|
|
1567
|
|
1568 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
|
|
1569 if (conf->headers_set == NULL) {
|
|
1570 return NGX_CONF_ERROR;
|
|
1571 }
|
|
1572
|
|
1573
|
|
1574 src = conf->headers_source->elts;
|
|
1575
|
|
1576 for (h = ngx_http_proxy_headers; h->key.len; h++) {
|
|
1577
|
|
1578 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
1579 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
|
|
1580 goto next;
|
507
|
1581 }
|
|
1582 }
|
|
1583
|
509
|
1584 s = ngx_array_push(conf->headers_source);
|
|
1585 if (s == NULL) {
|
507
|
1586 return NGX_CONF_ERROR;
|
|
1587 }
|
|
1588
|
509
|
1589 *s = *h;
|
507
|
1590
|
517
|
1591 src = conf->headers_source->elts;
|
|
1592
|
509
|
1593 next:
|
507
|
1594
|
509
|
1595 continue;
|
|
1596 }
|
507
|
1597
|
509
|
1598 for (i = 0; i < conf->headers_source->nelts; i++) {
|
507
|
1599
|
|
1600 name = ngx_array_push(conf->headers_names);
|
|
1601 if (name == NULL) {
|
|
1602 return NGX_CONF_ERROR;
|
|
1603 }
|
|
1604
|
509
|
1605 *name = src[i].key;
|
|
1606
|
519
|
1607 if (src[i].value.len == 0) {
|
|
1608 continue;
|
|
1609 }
|
|
1610
|
509
|
1611 if (ngx_http_script_variables_count(&src[i].value) == 0) {
|
|
1612 copy = ngx_array_push_n(conf->headers_set_len,
|
|
1613 sizeof(ngx_http_script_copy_code_t));
|
|
1614 if (copy == NULL) {
|
|
1615 return NGX_CONF_ERROR;
|
|
1616 }
|
|
1617
|
|
1618 copy->code = (ngx_http_script_code_pt)
|
|
1619 ngx_http_script_copy_len_code;
|
|
1620 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
1621 + src[i].value.len + sizeof(CRLF) - 1;
|
507
|
1622
|
|
1623
|
509
|
1624 size = (sizeof(ngx_http_script_copy_code_t)
|
|
1625 + src[i].key.len + sizeof(": ") - 1
|
|
1626 + src[i].value.len + sizeof(CRLF) - 1
|
|
1627 + sizeof(uintptr_t) - 1)
|
|
1628 & ~(sizeof(uintptr_t) - 1);
|
|
1629
|
|
1630 copy = ngx_array_push_n(conf->headers_set, size);
|
|
1631 if (copy == NULL) {
|
|
1632 return NGX_CONF_ERROR;
|
|
1633 }
|
|
1634
|
|
1635 copy->code = ngx_http_script_copy_code;
|
|
1636 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
1637 + src[i].value.len + sizeof(CRLF) - 1;
|
|
1638
|
|
1639 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
1640
|
|
1641 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
1642 *p++ = ':'; *p++ = ' ';
|
|
1643 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
|
|
1644 *p++ = CR; *p = LF;
|
|
1645
|
|
1646 } else {
|
|
1647 copy = ngx_array_push_n(conf->headers_set_len,
|
|
1648 sizeof(ngx_http_script_copy_code_t));
|
|
1649 if (copy == NULL) {
|
|
1650 return NGX_CONF_ERROR;
|
|
1651 }
|
|
1652
|
|
1653 copy->code = (ngx_http_script_code_pt)
|
|
1654 ngx_http_script_copy_len_code;
|
|
1655 copy->len = src[i].key.len + sizeof(": ") - 1;
|
507
|
1656
|
|
1657
|
509
|
1658 size = (sizeof(ngx_http_script_copy_code_t)
|
|
1659 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
|
|
1660 & ~(sizeof(uintptr_t) - 1);
|
|
1661
|
|
1662 copy = ngx_array_push_n(conf->headers_set, size);
|
|
1663 if (copy == NULL) {
|
|
1664 return NGX_CONF_ERROR;
|
|
1665 }
|
|
1666
|
|
1667 copy->code = ngx_http_script_copy_code;
|
|
1668 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
1669
|
|
1670 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
1671 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
1672 *p++ = ':'; *p = ' ';
|
|
1673
|
|
1674
|
|
1675 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
1676
|
|
1677 sc.cf = cf;
|
|
1678 sc.source = &src[i].value;
|
573
|
1679 sc.flushes = &conf->flushes;
|
509
|
1680 sc.lengths = &conf->headers_set_len;
|
|
1681 sc.values = &conf->headers_set;
|
|
1682
|
|
1683 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
1684 return NGX_CONF_ERROR;
|
|
1685 }
|
|
1686
|
|
1687
|
|
1688 copy = ngx_array_push_n(conf->headers_set_len,
|
|
1689 sizeof(ngx_http_script_copy_code_t));
|
|
1690 if (copy == NULL) {
|
|
1691 return NGX_CONF_ERROR;
|
|
1692 }
|
|
1693
|
|
1694 copy->code = (ngx_http_script_code_pt)
|
|
1695 ngx_http_script_copy_len_code;
|
|
1696 copy->len = sizeof(CRLF) - 1;
|
|
1697
|
|
1698
|
|
1699 size = (sizeof(ngx_http_script_copy_code_t)
|
|
1700 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
|
|
1701 & ~(sizeof(uintptr_t) - 1);
|
|
1702
|
|
1703 copy = ngx_array_push_n(conf->headers_set, size);
|
|
1704 if (copy == NULL) {
|
|
1705 return NGX_CONF_ERROR;
|
|
1706 }
|
|
1707
|
|
1708 copy->code = ngx_http_script_copy_code;
|
|
1709 copy->len = sizeof(CRLF) - 1;
|
|
1710
|
|
1711 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
1712 *p++ = CR; *p = LF;
|
507
|
1713 }
|
|
1714
|
509
|
1715 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
1716 if (code == NULL) {
|
507
|
1717 return NGX_CONF_ERROR;
|
|
1718 }
|
|
1719
|
509
|
1720 *code = (uintptr_t) NULL;
|
|
1721
|
|
1722 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
|
|
1723 if (code == NULL) {
|
|
1724 return NGX_CONF_ERROR;
|
|
1725 }
|
|
1726
|
|
1727 *code = (uintptr_t) NULL;
|
507
|
1728 }
|
|
1729
|
509
|
1730 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
1731 if (code == NULL) {
|
|
1732 return NGX_CONF_ERROR;
|
507
|
1733 }
|
|
1734
|
509
|
1735 *code = (uintptr_t) NULL;
|
507
|
1736
|
|
1737
|
509
|
1738 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash_t));
|
|
1739 if (conf->headers_set_hash == NULL) {
|
|
1740 return NGX_CONF_ERROR;
|
507
|
1741 }
|
|
1742
|
509
|
1743 conf->headers_set_hash->max_size = 100;
|
|
1744 conf->headers_set_hash->bucket_limit = 1;
|
|
1745 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
|
|
1746 conf->headers_set_hash->name = "proxy_headers";
|
507
|
1747
|
509
|
1748 if (ngx_hash_init(conf->headers_set_hash, cf->pool,
|
|
1749 conf->headers_names->elts, conf->headers_names->nelts) != NGX_OK)
|
|
1750 {
|
|
1751 return NGX_CONF_ERROR;
|
507
|
1752 }
|
|
1753
|
509
|
1754 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
1755 "proxy_headers hash size: %ui, "
|
|
1756 "max buckets per entry: %ui",
|
|
1757 conf->headers_set_hash->hash_size,
|
|
1758 conf->headers_set_hash->min_buckets);
|
507
|
1759
|
509
|
1760 return NGX_CONF_OK;
|
507
|
1761 }
|
|
1762
|
|
1763
|
|
1764 static char *
|
|
1765 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
1766 {
|
509
|
1767 ngx_http_proxy_loc_conf_t *plcf = conf;
|
507
|
1768
|
|
1769 ngx_str_t *value, *url;
|
|
1770 ngx_inet_upstream_t inet_upstream;
|
|
1771 ngx_http_core_loc_conf_t *clcf;
|
|
1772 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
1773 ngx_unix_domain_upstream_t unix_upstream;
|
|
1774 #endif
|
|
1775
|
555
|
1776 if (plcf->upstream.schema.len) {
|
|
1777 return "is duplicate";
|
|
1778 }
|
|
1779
|
507
|
1780 value = cf->args->elts;
|
|
1781
|
|
1782 url = &value[1];
|
|
1783
|
|
1784 if (ngx_strncasecmp(url->data, "http://", 7) != 0) {
|
|
1785 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix");
|
|
1786 return NGX_CONF_ERROR;
|
|
1787 }
|
|
1788
|
|
1789 if (ngx_strncasecmp(url->data + 7, "unix:", 5) == 0) {
|
|
1790
|
|
1791 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
1792
|
|
1793 ngx_memzero(&unix_upstream, sizeof(ngx_unix_domain_upstream_t));
|
|
1794
|
|
1795 unix_upstream.name = *url;
|
|
1796 unix_upstream.url.len = url->len - 7;
|
|
1797 unix_upstream.url.data = url->data + 7;
|
|
1798 unix_upstream.uri_part = 1;
|
|
1799
|
509
|
1800 plcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream);
|
|
1801 if (plcf->peers == NULL) {
|
507
|
1802 return NGX_CONF_ERROR;
|
|
1803 }
|
|
1804
|
509
|
1805 plcf->host_header.len = sizeof("localhost") - 1;
|
|
1806 plcf->host_header.data = (u_char *) "localhost";
|
|
1807 plcf->upstream.uri = unix_upstream.uri;
|
507
|
1808
|
|
1809 #else
|
|
1810 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1811 "the unix domain sockets are not supported "
|
|
1812 "on this platform");
|
|
1813 return NGX_CONF_ERROR;
|
|
1814
|
|
1815 #endif
|
|
1816
|
|
1817 } else {
|
|
1818 ngx_memzero(&inet_upstream, sizeof(ngx_inet_upstream_t));
|
|
1819
|
|
1820 inet_upstream.name = *url;
|
|
1821 inet_upstream.url.len = url->len - 7;
|
|
1822 inet_upstream.url.data = url->data + 7;
|
|
1823 inet_upstream.default_port_value = 80;
|
|
1824 inet_upstream.uri_part = 1;
|
|
1825
|
509
|
1826 plcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream);
|
|
1827 if (plcf->peers == NULL) {
|
507
|
1828 return NGX_CONF_ERROR;
|
|
1829 }
|
|
1830
|
509
|
1831 plcf->host_header = inet_upstream.host_header;
|
|
1832 plcf->port_text = inet_upstream.port_text;
|
|
1833 plcf->upstream.uri = inet_upstream.uri;
|
507
|
1834 }
|
|
1835
|
509
|
1836 plcf->upstream.schema.len = sizeof("http://") - 1;
|
|
1837 plcf->upstream.schema.data = (u_char *) "http://";
|
|
1838
|
507
|
1839 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
|
|
1840
|
|
1841 clcf->handler = ngx_http_proxy_handler;
|
|
1842
|
573
|
1843 plcf->upstream.location = clcf->name;
|
555
|
1844
|
507
|
1845 #if (NGX_PCRE)
|
555
|
1846
|
573
|
1847 if (clcf->regex) {
|
|
1848 if (plcf->upstream.uri.len) {
|
|
1849 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1850 "\"proxy_pass\" may not have URI part in "
|
|
1851 "location given by regular expression");
|
|
1852 return NGX_CONF_ERROR;
|
|
1853 }
|
|
1854
|
|
1855 plcf->upstream.location.len = 0;
|
555
|
1856 }
|
|
1857
|
507
|
1858 #endif
|
|
1859
|
509
|
1860 plcf->upstream.url = *url;
|
|
1861
|
507
|
1862 if (clcf->name.data[clcf->name.len - 1] == '/') {
|
|
1863 clcf->auto_redirect = 1;
|
|
1864 }
|
|
1865
|
|
1866 return NGX_CONF_OK;
|
|
1867 }
|
|
1868
|
|
1869
|
|
1870 static char *
|
509
|
1871 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
507
|
1872 {
|
509
|
1873 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
1874
|
|
1875 ngx_str_t *value;
|
|
1876 ngx_array_t *vars_lengths, *vars_values;
|
|
1877 ngx_http_script_compile_t sc;
|
|
1878 ngx_http_proxy_redirect_t *pr;
|
|
1879
|
|
1880 if (plcf->redirect == 0) {
|
|
1881 return NGX_CONF_OK;
|
|
1882 }
|
|
1883
|
|
1884 value = cf->args->elts;
|
|
1885
|
|
1886 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
1887 plcf->redirect = 0;
|
|
1888 plcf->redirects = NULL;
|
|
1889 return NGX_CONF_OK;
|
|
1890 }
|
|
1891
|
|
1892 if (plcf->redirects == NULL) {
|
|
1893 plcf->redirects = ngx_array_create(cf->pool, 1,
|
|
1894 sizeof(ngx_http_proxy_redirect_t));
|
|
1895 if (plcf->redirects == NULL) {
|
|
1896 return NGX_CONF_ERROR;
|
|
1897 }
|
|
1898 }
|
|
1899
|
|
1900 pr = ngx_array_push(plcf->redirects);
|
|
1901 if (pr == NULL) {
|
|
1902 return NGX_CONF_ERROR;
|
|
1903 }
|
|
1904
|
|
1905 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
|
|
1906 if (plcf->upstream.url.data == NULL) {
|
|
1907 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1908 "\"proxy_rewrite_location default\" must go "
|
|
1909 "after the \"proxy_pass\" directive");
|
|
1910 return NGX_CONF_ERROR;
|
|
1911 }
|
|
1912
|
|
1913 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
1914 pr->redirect = plcf->upstream.url;
|
573
|
1915 pr->replacement.text = plcf->upstream.location;
|
509
|
1916
|
|
1917 return NGX_CONF_OK;
|
|
1918 }
|
|
1919
|
|
1920 if (ngx_http_script_variables_count(&value[2]) == 0) {
|
|
1921 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
1922 pr->redirect = value[1];
|
|
1923 pr->replacement.text = value[2];
|
|
1924
|
|
1925 return NGX_CONF_OK;
|
|
1926 }
|
|
1927
|
|
1928 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
1929
|
|
1930 vars_lengths = NULL;
|
|
1931 vars_values = NULL;
|
|
1932
|
|
1933 sc.cf = cf;
|
|
1934 sc.source = &value[2];
|
|
1935 sc.lengths = &vars_lengths;
|
|
1936 sc.values = &vars_values;
|
|
1937 sc.complete_lengths = 1;
|
|
1938 sc.complete_values = 1;
|
|
1939
|
|
1940 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
1941 return NGX_CONF_ERROR;
|
|
1942 }
|
|
1943
|
|
1944 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
|
|
1945 pr->redirect = value[1];
|
|
1946 pr->replacement.vars.lengths = vars_lengths->elts;
|
|
1947 pr->replacement.vars.values = vars_values->elts;
|
|
1948
|
507
|
1949 return NGX_CONF_OK;
|
|
1950 }
|
|
1951
|
|
1952
|
|
1953 static char *
|
|
1954 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data)
|
|
1955 {
|
|
1956 #if (NGX_FREEBSD)
|
|
1957 ssize_t *np = data;
|
|
1958
|
|
1959 if (*np >= ngx_freebsd_net_inet_tcp_sendspace) {
|
|
1960 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1961 "\"proxy_send_lowat\" must be less than %d "
|
|
1962 "(sysctl net.inet.tcp.sendspace)",
|
|
1963 ngx_freebsd_net_inet_tcp_sendspace);
|
|
1964
|
|
1965 return NGX_CONF_ERROR;
|
|
1966 }
|
|
1967
|
|
1968 #elif !(NGX_HAVE_SO_SNDLOWAT)
|
|
1969 ssize_t *np = data;
|
|
1970
|
|
1971 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
1972 "\"proxy_send_lowat\" is not supported, ignored");
|
|
1973
|
|
1974 *np = 0;
|
|
1975
|
|
1976 #endif
|
|
1977
|
|
1978 return NGX_CONF_OK;
|
|
1979 }
|