Mercurial > hg > nginx
annotate src/imap/ngx_imap_proxy_module.c @ 587:284cc140593b release-0.3.15
nginx-0.3.15-RELEASE import
*) Feature: the new 444 code of the "return" directive to close
connection.
*) Feature: the "so_keepalive" directive in IMAP/POP3 proxy.
*) Bugfix: if there are unclosed connection nginx now calls abort()
only on gracefull quit and active "debug_points" directive.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Wed, 07 Dec 2005 14:51:31 +0000 |
parents | 4e296b7d25bf |
children | d4e858a5751a |
rev | line source |
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
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10 #include <ngx_event_connect.h> |
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11 #include <ngx_imap.h> |
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12 |
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13 |
521 | 14 typedef struct { |
15 ngx_flag_t enable; | |
539 | 16 size_t buffer_size; |
17 ngx_msec_t timeout; | |
521 | 18 } ngx_imap_proxy_conf_t; |
19 | |
20 | |
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21 static void ngx_imap_proxy_block_read(ngx_event_t *rev); |
527 | 22 static void ngx_imap_proxy_imap_handler(ngx_event_t *rev); |
23 static void ngx_imap_proxy_pop3_handler(ngx_event_t *rev); | |
419
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24 static void ngx_imap_proxy_dummy_handler(ngx_event_t *ev); |
527 | 25 static ngx_int_t ngx_imap_proxy_read_response(ngx_imap_session_t *s, |
26 ngx_uint_t what); | |
419
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27 static void ngx_imap_proxy_handler(ngx_event_t *ev); |
527 | 28 static void ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s); |
418
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29 static void ngx_imap_proxy_close_session(ngx_imap_session_t *s); |
521 | 30 static void *ngx_imap_proxy_create_conf(ngx_conf_t *cf); |
31 static char *ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, | |
32 void *child); | |
33 | |
34 | |
571 | 35 #define NGX_IMAP_WAIT_OK 0 |
36 #define NGX_IMAP_WAIT_NEXT 1 | |
527 | 37 |
38 | |
521 | 39 static ngx_command_t ngx_imap_proxy_commands[] = { |
539 | 40 |
521 | 41 { ngx_string("proxy"), |
42 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_FLAG, | |
43 ngx_conf_set_flag_slot, | |
44 NGX_IMAP_SRV_CONF_OFFSET, | |
45 offsetof(ngx_imap_proxy_conf_t, enable), | |
46 NULL }, | |
47 | |
539 | 48 { ngx_string("proxy_buffer"), |
49 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
50 ngx_conf_set_size_slot, | |
51 NGX_IMAP_SRV_CONF_OFFSET, | |
52 offsetof(ngx_imap_proxy_conf_t, buffer_size), | |
53 NULL }, | |
54 | |
55 { ngx_string("proxy_timeout"), | |
56 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1, | |
57 ngx_conf_set_msec_slot, | |
58 NGX_IMAP_SRV_CONF_OFFSET, | |
59 offsetof(ngx_imap_proxy_conf_t, timeout), | |
60 NULL }, | |
61 | |
521 | 62 ngx_null_command |
63 }; | |
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64 |
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65 |
521 | 66 static ngx_imap_module_t ngx_imap_proxy_module_ctx = { |
67 NULL, /* create main configuration */ | |
68 NULL, /* init main configuration */ | |
69 | |
70 ngx_imap_proxy_create_conf, /* create server configuration */ | |
71 ngx_imap_proxy_merge_conf /* merge server configuration */ | |
72 }; | |
73 | |
74 | |
75 ngx_module_t ngx_imap_proxy_module = { | |
76 NGX_MODULE_V1, | |
77 &ngx_imap_proxy_module_ctx, /* module context */ | |
78 ngx_imap_proxy_commands, /* module directives */ | |
79 NGX_IMAP_MODULE, /* module type */ | |
541 | 80 NULL, /* init master */ |
521 | 81 NULL, /* init module */ |
541 | 82 NULL, /* init process */ |
83 NULL, /* init thread */ | |
84 NULL, /* exit thread */ | |
85 NULL, /* exit process */ | |
86 NULL, /* exit master */ | |
87 NGX_MODULE_V1_PADDING | |
521 | 88 }; |
89 | |
90 | |
91 void | |
92 ngx_imap_proxy_init(ngx_imap_session_t *s, ngx_peers_t *peers) | |
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93 { |
587 | 94 int keepalive; |
527 | 95 ngx_int_t rc; |
96 ngx_imap_proxy_ctx_t *p; | |
97 ngx_imap_core_srv_conf_t *cscf; | |
419
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98 |
587 | 99 s->connection->log->action = "connecting to upstream"; |
100 | |
101 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module); | |
102 | |
103 if (cscf->so_keepalive) { | |
104 keepalive = 1; | |
105 | |
106 if (setsockopt(s->connection->fd, SOL_SOCKET, SO_KEEPALIVE, | |
107 (const void *) &keepalive, sizeof(int)) | |
108 == -1) | |
109 { | |
110 ngx_log_error(NGX_LOG_ALERT, s->connection->log, ngx_socket_errno, | |
111 "setsockopt(SO_KEEPALIVE) failed"); | |
112 } | |
113 } | |
114 | |
501 | 115 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_imap_proxy_ctx_t)); |
116 if (p == NULL) { | |
527 | 117 ngx_imap_session_internal_server_error(s); |
419
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118 return; |
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119 } |
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120 |
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121 s->proxy = p; |
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122 |
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123 p->upstream.peers = peers; |
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124 p->upstream.log = s->connection->log; |
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125 p->upstream.log_error = NGX_ERROR_ERR; |
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126 |
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127 rc = ngx_event_connect_peer(&p->upstream); |
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128 |
543 | 129 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
130 ngx_imap_proxy_internal_server_error(s); | |
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131 return; |
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132 } |
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133 |
527 | 134 ngx_add_timer(p->upstream.connection->read, cscf->timeout); |
135 | |
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136 p->upstream.connection->data = s; |
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137 p->upstream.connection->pool = s->connection->pool; |
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138 |
509 | 139 s->connection->read->handler = ngx_imap_proxy_block_read; |
140 p->upstream.connection->write->handler = ngx_imap_proxy_dummy_handler; | |
527 | 141 |
142 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { | |
143 p->upstream.connection->read->handler = ngx_imap_proxy_pop3_handler; | |
144 s->imap_state = ngx_pop3_start; | |
145 | |
146 } else { | |
147 p->upstream.connection->read->handler = ngx_imap_proxy_imap_handler; | |
148 s->imap_state = ngx_imap_start; | |
149 } | |
419
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150 } |
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151 |
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152 |
521 | 153 static void |
154 ngx_imap_proxy_block_read(ngx_event_t *rev) | |
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155 { |
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156 ngx_connection_t *c; |
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157 ngx_imap_session_t *s; |
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158 |
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159 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy block read"); |
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160 |
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161 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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162 c = rev->data; |
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163 s = c->data; |
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164 |
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165 ngx_imap_proxy_close_session(s); |
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166 } |
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167 } |
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168 |
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169 |
521 | 170 static void |
527 | 171 ngx_imap_proxy_imap_handler(ngx_event_t *rev) |
418
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172 { |
539 | 173 u_char *p; |
174 ngx_int_t rc; | |
175 ngx_str_t line; | |
176 ngx_connection_t *c; | |
177 ngx_imap_session_t *s; | |
178 ngx_imap_proxy_conf_t *pcf; | |
419
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179 |
527 | 180 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, |
181 "imap proxy imap auth handler"); | |
419
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182 |
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183 c = rev->data; |
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184 s = c->data; |
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185 |
423
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186 if (rev->timedout) { |
527 | 187 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
188 "upstream timed out"); | |
577 | 189 c->timedout = 1; |
527 | 190 ngx_imap_proxy_internal_server_error(s); |
423
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191 return; |
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192 } |
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193 |
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194 if (s->proxy->buffer == NULL) { |
539 | 195 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
527 | 196 |
539 | 197 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
419
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198 if (s->proxy->buffer == NULL) { |
527 | 199 ngx_imap_proxy_internal_server_error(s); |
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200 return; |
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201 } |
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202 } |
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203 |
527 | 204 rc = ngx_imap_proxy_read_response(s, s->imap_state == ngx_imap_start ? |
205 NGX_IMAP_WAIT_OK : NGX_IMAP_WAIT_NEXT); | |
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206 |
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207 if (rc == NGX_AGAIN) { |
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208 return; |
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Igor Sysoev <igor@sysoev.ru>
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418
diff
changeset
|
209 } |
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
210 |
571 | 211 if (rc == NGX_ERROR) { |
527 | 212 ngx_imap_proxy_internal_server_error(s); |
422
edaefb2a20fc
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
213 return; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
214 } |
419
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parents:
418
diff
changeset
|
215 |
527 | 216 switch (s->imap_state) { |
217 | |
218 case ngx_imap_start: | |
219 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
220 "imap proxy send login"); | |
419
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
221 |
587 | 222 s->connection->log->action = "sending LOGIN command to upstream"; |
223 | |
527 | 224 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
225 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
226 line.data = ngx_palloc(c->pool, line.len); | |
227 if (line.data == NULL) { | |
228 ngx_imap_proxy_internal_server_error(s); | |
229 return; | |
230 } | |
231 | |
232 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, | |
233 &s->tag, s->login.len) | |
234 - line.data; | |
235 | |
236 s->imap_state = ngx_imap_login; | |
237 break; | |
238 | |
239 case ngx_imap_login: | |
422
edaefb2a20fc
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
240 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
241 |
587 | 242 s->connection->log->action = "sending user name to upstream"; |
243 | |
529 | 244 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; |
527 | 245 line.data = ngx_palloc(c->pool, line.len); |
246 if (line.data == NULL) { | |
247 ngx_imap_proxy_internal_server_error(s); | |
248 return; | |
249 } | |
250 | |
529 | 251 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, |
527 | 252 &s->login, s->passwd.len) |
253 - line.data; | |
254 | |
255 s->imap_state = ngx_imap_user; | |
256 break; | |
257 | |
258 case ngx_imap_user: | |
259 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
260 "imap proxy send passwd"); | |
261 | |
587 | 262 s->connection->log->action = "sending password to upstream"; |
263 | |
527 | 264 line.len = s->passwd.len + 2; |
501 | 265 line.data = ngx_palloc(c->pool, line.len); |
266 if (line.data == NULL) { | |
527 | 267 ngx_imap_proxy_internal_server_error(s); |
268 return; | |
269 } | |
270 | |
271 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); | |
272 *p++ = CR; *p = LF; | |
273 | |
274 s->imap_state = ngx_imap_passwd; | |
275 break; | |
276 | |
277 default: | |
278 #if (NGX_SUPPRESS_WARN) | |
279 line.len = 0; | |
280 line.data = NULL; | |
281 #endif | |
282 break; | |
283 } | |
284 | |
539 | 285 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
527 | 286 /* |
287 * we treat the incomplete sending as NGX_ERROR | |
288 * because it is very strange here | |
289 */ | |
290 ngx_imap_proxy_internal_server_error(s); | |
291 return; | |
292 } | |
293 | |
294 s->proxy->buffer->pos = s->proxy->buffer->start; | |
295 s->proxy->buffer->last = s->proxy->buffer->start; | |
296 | |
297 if (s->imap_state == ngx_imap_passwd) { | |
298 s->connection->read->handler = ngx_imap_proxy_handler; | |
299 s->connection->write->handler = ngx_imap_proxy_handler; | |
300 rev->handler = ngx_imap_proxy_handler; | |
301 c->write->handler = ngx_imap_proxy_handler; | |
531 | 302 |
539 | 303 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
304 ngx_add_timer(s->connection->read, pcf->timeout); | |
531 | 305 ngx_del_timer(c->read); |
541 | 306 |
547 | 307 c->log->action = NULL; |
308 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
527 | 309 } |
310 } | |
311 | |
312 | |
313 static void | |
314 ngx_imap_proxy_pop3_handler(ngx_event_t *rev) | |
315 { | |
539 | 316 u_char *p; |
317 ngx_int_t rc; | |
318 ngx_str_t line; | |
319 ngx_connection_t *c; | |
320 ngx_imap_session_t *s; | |
321 ngx_imap_proxy_conf_t *pcf; | |
527 | 322 |
323 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, | |
324 "imap proxy pop3 auth handler"); | |
325 | |
326 c = rev->data; | |
327 s = c->data; | |
328 | |
329 if (rev->timedout) { | |
330 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
331 "upstream timed out"); | |
577 | 332 c->timedout = 1; |
527 | 333 ngx_imap_proxy_internal_server_error(s); |
334 return; | |
335 } | |
336 | |
337 if (s->proxy->buffer == NULL) { | |
539 | 338 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
527 | 339 |
539 | 340 s->proxy->buffer = ngx_create_temp_buf(c->pool, pcf->buffer_size); |
527 | 341 if (s->proxy->buffer == NULL) { |
342 ngx_imap_proxy_internal_server_error(s); | |
343 return; | |
344 } | |
345 } | |
346 | |
347 rc = ngx_imap_proxy_read_response(s, NGX_IMAP_WAIT_OK); | |
348 | |
349 if (rc == NGX_AGAIN) { | |
350 return; | |
351 } | |
352 | |
571 | 353 if (rc == NGX_ERROR) { |
527 | 354 ngx_imap_proxy_internal_server_error(s); |
355 return; | |
356 } | |
357 | |
358 switch (s->imap_state) { | |
359 | |
360 case ngx_pop3_start: | |
361 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send user"); | |
362 | |
587 | 363 s->connection->log->action = "sending user name to upstream"; |
364 | |
527 | 365 line.len = sizeof("USER ") - 1 + s->login.len + 2; |
366 line.data = ngx_palloc(c->pool, line.len); | |
367 if (line.data == NULL) { | |
368 ngx_imap_proxy_internal_server_error(s); | |
419
47709bff4468
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Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
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|
369 return; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
370 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
371 |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
372 p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
373 p = ngx_cpymem(p, s->login.data, s->login.len); |
501 | 374 *p++ = CR; *p = LF; |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
375 |
527 | 376 s->imap_state = ngx_pop3_user; |
377 break; | |
378 | |
379 case ngx_pop3_user: | |
380 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap proxy send pass"); | |
381 | |
587 | 382 s->connection->log->action = "sending password to upstream"; |
383 | |
527 | 384 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; |
385 line.data = ngx_palloc(c->pool, line.len); | |
386 if (line.data == NULL) { | |
387 ngx_imap_proxy_internal_server_error(s); | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
388 return; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
389 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
390 |
527 | 391 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
392 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
393 *p++ = CR; *p = LF; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
394 |
527 | 395 s->imap_state = ngx_pop3_passwd; |
396 break; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
397 |
527 | 398 default: |
399 #if (NGX_SUPPRESS_WARN) | |
400 line.len = 0; | |
401 line.data = NULL; | |
402 #endif | |
403 break; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
404 } |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
405 |
539 | 406 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
407 /* |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
408 * we treat the incomplete sending as NGX_ERROR |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
409 * because it is very strange here |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
410 */ |
527 | 411 ngx_imap_proxy_internal_server_error(s); |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
412 return; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
413 } |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
414 |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
415 s->proxy->buffer->pos = s->proxy->buffer->start; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
416 s->proxy->buffer->last = s->proxy->buffer->start; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
417 |
527 | 418 if (s->imap_state == ngx_pop3_passwd) { |
419 s->connection->read->handler = ngx_imap_proxy_handler; | |
420 s->connection->write->handler = ngx_imap_proxy_handler; | |
421 rev->handler = ngx_imap_proxy_handler; | |
422 c->write->handler = ngx_imap_proxy_handler; | |
531 | 423 |
539 | 424 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); |
425 ngx_add_timer(s->connection->read, pcf->timeout); | |
531 | 426 ngx_del_timer(c->read); |
541 | 427 |
547 | 428 c->log->action = NULL; |
429 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
527 | 430 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
431 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
432 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
433 |
521 | 434 static void |
583 | 435 ngx_imap_proxy_dummy_handler(ngx_event_t *wev) |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
436 { |
583 | 437 ngx_connection_t *c; |
438 ngx_imap_session_t *s; | |
439 | |
440 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0, "imap proxy dummy handler"); | |
441 | |
442 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { | |
443 c = wev->data; | |
444 s = c->data; | |
445 | |
446 ngx_imap_proxy_close_session(s); | |
447 } | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
448 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
449 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
450 |
521 | 451 static ngx_int_t |
527 | 452 ngx_imap_proxy_read_response(ngx_imap_session_t *s, ngx_uint_t what) |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
453 { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
454 u_char *p; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
455 ssize_t n; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
456 ngx_buf_t *b; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
457 |
587 | 458 s->connection->log->action = "reading response from upstream"; |
459 | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
460 b = s->proxy->buffer; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
461 |
539 | 462 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
463 b->last, b->end - b->last); | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
464 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
465 if (n == NGX_ERROR || n == 0) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
466 return NGX_ERROR; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
467 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
468 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
469 if (n == NGX_AGAIN) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
470 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
471 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
472 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
473 b->last += n; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
474 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
475 if (b->last - b->pos < 5) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
476 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
477 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
478 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
479 if (*(b->last - 2) != CR || *(b->last - 1) != LF) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
480 if (b->last == b->end) { |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
481 *(b->last - 1) = '\0'; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
482 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
483 "upstream sent too long response line: \"%s\"", |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
484 b->pos); |
571 | 485 return NGX_ERROR; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
486 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
487 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
488 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
489 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
490 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
491 p = b->pos; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
492 |
527 | 493 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) { |
494 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { | |
495 return NGX_OK; | |
496 } | |
497 | |
498 } else { | |
499 if (what == NGX_IMAP_WAIT_OK) { | |
500 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { | |
501 return NGX_OK; | |
502 } | |
503 | |
504 } else { | |
529 | 505 if (p[0] == '+') { |
527 | 506 return NGX_OK; |
507 } | |
508 } | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
509 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
510 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
511 *(b->last - 2) = '\0'; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
512 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, |
527 | 513 "upstream sent invalid response: \"%s\"", p); |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
514 |
571 | 515 return NGX_ERROR; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
516 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
517 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
518 |
521 | 519 static void |
520 ngx_imap_proxy_handler(ngx_event_t *ev) | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
521 { |
583 | 522 char *action, *recv_action, *send_action; |
539 | 523 size_t size; |
524 ssize_t n; | |
525 ngx_buf_t *b; | |
583 | 526 ngx_uint_t do_write; |
539 | 527 ngx_connection_t *c, *src, *dst; |
528 ngx_imap_session_t *s; | |
529 ngx_imap_proxy_conf_t *pcf; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
530 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
531 c = ev->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
532 s = c->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
533 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
534 if (ev->timedout) { |
583 | 535 c->log->action = "proxying"; |
536 | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
537 if (c == s->connection) { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
538 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
539 "client timed out"); |
577 | 540 c->timedout = 1; |
541 | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
542 } else { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
543 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
544 "upstream timed out"); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
545 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
546 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
547 ngx_imap_proxy_close_session(s); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
548 return; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
549 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
550 |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
551 if (c == s->connection) { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
552 if (ev->write) { |
583 | 553 recv_action = "proxying and reading from upstream"; |
554 send_action = "proxying and sending to client"; | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
555 src = s->proxy->upstream.connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
556 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
557 b = s->proxy->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
558 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
559 } else { |
583 | 560 recv_action = "proxying and reading from client"; |
561 send_action = "proxying and sending to upstream"; | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
562 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
563 dst = s->proxy->upstream.connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
564 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
565 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
566 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
567 } else { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
568 if (ev->write) { |
583 | 569 recv_action = "proxying and reading from upstream"; |
570 send_action = "proxying and sending to client"; | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
571 src = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
572 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
573 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
574 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
575 } else { |
583 | 576 recv_action = "proxying and reading from client"; |
577 send_action = "proxying and sending to upstream"; | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
578 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
579 dst = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
580 b = s->proxy->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
581 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
582 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
583 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
584 do_write = ev->write ? 1 : 0; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
585 |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
586 ngx_log_debug3(NGX_LOG_DEBUG_IMAP, ev->log, 0, |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
587 "imap proxy handler: %d, #%d > #%d", |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
588 do_write, src->fd, dst->fd); |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
589 |
583 | 590 for ( ;; ) { |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
591 |
583 | 592 if (do_write) { |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
593 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
594 size = b->last - b->pos; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
595 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
596 if (size && dst->write->ready) { |
583 | 597 c->log->action = send_action; |
598 | |
539 | 599 n = dst->send(dst, b->pos, size); |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
600 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
601 if (n == NGX_ERROR) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
602 ngx_imap_proxy_close_session(s); |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
603 return; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
604 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
605 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
606 if (n > 0) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
607 b->pos += n; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
608 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
609 if (b->pos == b->last) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
610 b->pos = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
611 b->last = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
612 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
613 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
614 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
615 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
616 |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
617 size = b->end - b->last; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
618 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
619 if (size && src->read->ready) { |
583 | 620 c->log->action = recv_action; |
621 | |
539 | 622 n = src->recv(src, b->last, size); |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
623 |
583 | 624 if (n == NGX_AGAIN || n == 0) { |
625 break; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
626 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
627 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
628 if (n > 0) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
629 do_write = 1; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
630 b->last += n; |
583 | 631 |
632 continue; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
633 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
634 |
583 | 635 if (n == NGX_ERROR) { |
636 src->read->eof = 1; | |
539 | 637 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
638 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
639 |
583 | 640 break; |
641 } | |
642 | |
643 c->log->action = "proxying"; | |
644 | |
645 if ((s->connection->read->eof || s->proxy->upstream.connection->read->eof) | |
646 && s->buffer->pos == s->buffer->last | |
647 && s->proxy->buffer->pos == s->proxy->buffer->last) | |
648 { | |
649 action = c->log->action; | |
650 c->log->action = NULL; | |
651 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
652 c->log->action = action; | |
653 | |
654 ngx_imap_proxy_close_session(s); | |
655 return; | |
656 } | |
657 | |
658 if (ngx_handle_write_event(dst->write, 0) == NGX_ERROR) { | |
659 ngx_imap_proxy_close_session(s); | |
660 return; | |
661 } | |
662 | |
663 if (ngx_handle_read_event(dst->read, 0) == NGX_ERROR) { | |
664 ngx_imap_proxy_close_session(s); | |
665 return; | |
666 } | |
667 | |
668 if (ngx_handle_write_event(src->write, 0) == NGX_ERROR) { | |
669 ngx_imap_proxy_close_session(s); | |
670 return; | |
671 } | |
672 | |
673 if (ngx_handle_read_event(src->read, 0) == NGX_ERROR) { | |
674 ngx_imap_proxy_close_session(s); | |
675 return; | |
676 } | |
677 | |
678 if (c == s->connection) { | |
679 pcf = ngx_imap_get_module_srv_conf(s, ngx_imap_proxy_module); | |
680 ngx_add_timer(c->read, pcf->timeout); | |
681 } | |
418
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682 } |
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683 |
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684 |
521 | 685 static void |
527 | 686 ngx_imap_proxy_internal_server_error(ngx_imap_session_t *s) |
687 { | |
688 if (s->proxy->upstream.connection) { | |
689 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
690 "close imap proxy connection: %d", | |
691 s->proxy->upstream.connection->fd); | |
692 | |
693 ngx_close_connection(s->proxy->upstream.connection); | |
694 } | |
695 | |
696 ngx_imap_session_internal_server_error(s); | |
697 } | |
698 | |
699 | |
700 static void | |
521 | 701 ngx_imap_proxy_close_session(ngx_imap_session_t *s) |
418
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702 { |
521 | 703 if (s->proxy->upstream.connection) { |
704 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0, | |
705 "close imap proxy connection: %d", | |
706 s->proxy->upstream.connection->fd); | |
707 | |
708 ngx_close_connection(s->proxy->upstream.connection); | |
419
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709 } |
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710 |
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711 ngx_imap_close_connection(s->connection); |
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712 } |
521 | 713 |
714 | |
715 static void * | |
716 ngx_imap_proxy_create_conf(ngx_conf_t *cf) | |
577 | 717 { |
521 | 718 ngx_imap_proxy_conf_t *pcf; |
577 | 719 |
521 | 720 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_proxy_conf_t)); |
721 if (pcf == NULL) { | |
722 return NGX_CONF_ERROR; | |
723 } | |
724 | |
725 pcf->enable = NGX_CONF_UNSET; | |
539 | 726 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
727 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
521 | 728 |
729 return pcf; | |
730 } | |
731 | |
732 | |
733 static char * | |
734 ngx_imap_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
735 { | |
736 ngx_imap_proxy_conf_t *prev = parent; | |
737 ngx_imap_proxy_conf_t *conf = child; | |
738 | |
539 | 739 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
740 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, | |
741 (size_t) ngx_pagesize); | |
742 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
521 | 743 |
744 return NGX_CONF_OK; | |
745 } |