Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_proxy_module.c @ 5185:3d6cb39da268
release-1.4.0 tag
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 24 Apr 2013 13:59:45 +0000 |
parents | d620f497c50f |
children | 04e43d03e153 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
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11 #include <ngx_event_connect.h> |
1136 | 12 #include <ngx_mail.h> |
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14 |
521 | 15 typedef struct { |
16 ngx_flag_t enable; | |
857 | 17 ngx_flag_t pass_error_message; |
1136 | 18 ngx_flag_t xclient; |
539 | 19 size_t buffer_size; |
20 ngx_msec_t timeout; | |
1136 | 21 } ngx_mail_proxy_conf_t; |
521 | 22 |
23 | |
1136 | 24 static void ngx_mail_proxy_block_read(ngx_event_t *rev); |
25 static void ngx_mail_proxy_pop3_handler(ngx_event_t *rev); | |
26 static void ngx_mail_proxy_imap_handler(ngx_event_t *rev); | |
27 static void ngx_mail_proxy_smtp_handler(ngx_event_t *rev); | |
28 static void ngx_mail_proxy_dummy_handler(ngx_event_t *ev); | |
29 static ngx_int_t ngx_mail_proxy_read_response(ngx_mail_session_t *s, | |
663 | 30 ngx_uint_t state); |
1136 | 31 static void ngx_mail_proxy_handler(ngx_event_t *ev); |
32 static void ngx_mail_proxy_upstream_error(ngx_mail_session_t *s); | |
33 static void ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s); | |
34 static void ngx_mail_proxy_close_session(ngx_mail_session_t *s); | |
35 static void *ngx_mail_proxy_create_conf(ngx_conf_t *cf); | |
36 static char *ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, | |
521 | 37 void *child); |
38 | |
39 | |
1136 | 40 static ngx_command_t ngx_mail_proxy_commands[] = { |
539 | 41 |
521 | 42 { ngx_string("proxy"), |
1136 | 43 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
521 | 44 ngx_conf_set_flag_slot, |
1136 | 45 NGX_MAIL_SRV_CONF_OFFSET, |
46 offsetof(ngx_mail_proxy_conf_t, enable), | |
521 | 47 NULL }, |
48 | |
539 | 49 { ngx_string("proxy_buffer"), |
1136 | 50 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 51 ngx_conf_set_size_slot, |
1136 | 52 NGX_MAIL_SRV_CONF_OFFSET, |
53 offsetof(ngx_mail_proxy_conf_t, buffer_size), | |
539 | 54 NULL }, |
55 | |
56 { ngx_string("proxy_timeout"), | |
1136 | 57 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 58 ngx_conf_set_msec_slot, |
1136 | 59 NGX_MAIL_SRV_CONF_OFFSET, |
60 offsetof(ngx_mail_proxy_conf_t, timeout), | |
539 | 61 NULL }, |
62 | |
857 | 63 { ngx_string("proxy_pass_error_message"), |
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64 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
857 | 65 ngx_conf_set_flag_slot, |
1136 | 66 NGX_MAIL_SRV_CONF_OFFSET, |
67 offsetof(ngx_mail_proxy_conf_t, pass_error_message), | |
68 NULL }, | |
69 | |
70 { ngx_string("xclient"), | |
71 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, | |
72 ngx_conf_set_flag_slot, | |
73 NGX_MAIL_SRV_CONF_OFFSET, | |
74 offsetof(ngx_mail_proxy_conf_t, xclient), | |
857 | 75 NULL }, |
76 | |
521 | 77 ngx_null_command |
78 }; | |
418
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79 |
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80 |
1136 | 81 static ngx_mail_module_t ngx_mail_proxy_module_ctx = { |
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82 NULL, /* protocol */ |
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83 |
521 | 84 NULL, /* create main configuration */ |
85 NULL, /* init main configuration */ | |
86 | |
1136 | 87 ngx_mail_proxy_create_conf, /* create server configuration */ |
88 ngx_mail_proxy_merge_conf /* merge server configuration */ | |
521 | 89 }; |
90 | |
91 | |
1136 | 92 ngx_module_t ngx_mail_proxy_module = { |
521 | 93 NGX_MODULE_V1, |
1136 | 94 &ngx_mail_proxy_module_ctx, /* module context */ |
95 ngx_mail_proxy_commands, /* module directives */ | |
96 NGX_MAIL_MODULE, /* module type */ | |
541 | 97 NULL, /* init master */ |
521 | 98 NULL, /* init module */ |
541 | 99 NULL, /* init process */ |
100 NULL, /* init thread */ | |
101 NULL, /* exit thread */ | |
102 NULL, /* exit process */ | |
103 NULL, /* exit master */ | |
104 NGX_MODULE_V1_PADDING | |
521 | 105 }; |
106 | |
107 | |
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108 static u_char smtp_auth_ok[] = "235 2.0.0 OK" CRLF; |
1136 | 109 |
110 | |
521 | 111 void |
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112 ngx_mail_proxy_init(ngx_mail_session_t *s, ngx_addr_t *peer) |
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113 { |
587 | 114 int keepalive; |
527 | 115 ngx_int_t rc; |
1136 | 116 ngx_mail_proxy_ctx_t *p; |
117 ngx_mail_proxy_conf_t *pcf; | |
118 ngx_mail_core_srv_conf_t *cscf; | |
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119 |
587 | 120 s->connection->log->action = "connecting to upstream"; |
121 | |
1136 | 122 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
587 | 123 |
124 if (cscf->so_keepalive) { | |
125 keepalive = 1; | |
126 | |
127 if (setsockopt(s->connection->fd, SOL_SOCKET, SO_KEEPALIVE, | |
128 (const void *) &keepalive, sizeof(int)) | |
129 == -1) | |
130 { | |
131 ngx_log_error(NGX_LOG_ALERT, s->connection->log, ngx_socket_errno, | |
132 "setsockopt(SO_KEEPALIVE) failed"); | |
133 } | |
134 } | |
135 | |
1136 | 136 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_mail_proxy_ctx_t)); |
501 | 137 if (p == NULL) { |
1136 | 138 ngx_mail_session_internal_server_error(s); |
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139 return; |
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140 } |
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141 |
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142 s->proxy = p; |
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143 |
884 | 144 p->upstream.sockaddr = peer->sockaddr; |
145 p->upstream.socklen = peer->socklen; | |
146 p->upstream.name = &peer->name; | |
147 p->upstream.get = ngx_event_get_peer; | |
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148 p->upstream.log = s->connection->log; |
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149 p->upstream.log_error = NGX_ERROR_ERR; |
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150 |
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151 rc = ngx_event_connect_peer(&p->upstream); |
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152 |
543 | 153 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
1136 | 154 ngx_mail_proxy_internal_server_error(s); |
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155 return; |
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156 } |
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157 |
527 | 158 ngx_add_timer(p->upstream.connection->read, cscf->timeout); |
159 | |
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160 p->upstream.connection->data = s; |
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161 p->upstream.connection->pool = s->connection->pool; |
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162 |
1136 | 163 s->connection->read->handler = ngx_mail_proxy_block_read; |
164 p->upstream.connection->write->handler = ngx_mail_proxy_dummy_handler; | |
165 | |
166 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
167 | |
168 s->proxy->buffer = ngx_create_temp_buf(s->connection->pool, | |
169 pcf->buffer_size); | |
170 if (s->proxy->buffer == NULL) { | |
171 ngx_mail_proxy_internal_server_error(s); | |
172 return; | |
173 } | |
174 | |
1981 | 175 s->out.len = 0; |
176 | |
1136 | 177 switch (s->protocol) { |
527 | 178 |
1136 | 179 case NGX_MAIL_POP3_PROTOCOL: |
180 p->upstream.connection->read->handler = ngx_mail_proxy_pop3_handler; | |
181 s->mail_state = ngx_pop3_start; | |
182 break; | |
527 | 183 |
1136 | 184 case NGX_MAIL_IMAP_PROTOCOL: |
185 p->upstream.connection->read->handler = ngx_mail_proxy_imap_handler; | |
186 s->mail_state = ngx_imap_start; | |
187 break; | |
188 | |
189 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
190 p->upstream.connection->read->handler = ngx_mail_proxy_smtp_handler; | |
191 s->mail_state = ngx_smtp_start; | |
192 break; | |
527 | 193 } |
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194 } |
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195 |
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196 |
521 | 197 static void |
1136 | 198 ngx_mail_proxy_block_read(ngx_event_t *rev) |
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199 { |
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200 ngx_connection_t *c; |
1136 | 201 ngx_mail_session_t *s; |
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202 |
1136 | 203 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy block read"); |
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204 |
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205 if (ngx_handle_read_event(rev, 0) != NGX_OK) { |
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206 c = rev->data; |
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207 s = c->data; |
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208 |
1136 | 209 ngx_mail_proxy_close_session(s); |
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210 } |
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211 } |
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212 |
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213 |
521 | 214 static void |
1136 | 215 ngx_mail_proxy_pop3_handler(ngx_event_t *rev) |
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216 { |
539 | 217 u_char *p; |
218 ngx_int_t rc; | |
219 ngx_str_t line; | |
220 ngx_connection_t *c; | |
1136 | 221 ngx_mail_session_t *s; |
222 ngx_mail_proxy_conf_t *pcf; | |
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223 |
1136 | 224 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
225 "mail proxy pop3 auth handler"); | |
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226 |
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227 c = rev->data; |
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228 s = c->data; |
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229 |
423
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230 if (rev->timedout) { |
527 | 231 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
232 "upstream timed out"); | |
577 | 233 c->timedout = 1; |
1136 | 234 ngx_mail_proxy_internal_server_error(s); |
423
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235 return; |
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236 } |
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237 |
1136 | 238 rc = ngx_mail_proxy_read_response(s, 0); |
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239 |
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240 if (rc == NGX_AGAIN) { |
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241 return; |
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242 } |
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243 |
571 | 244 if (rc == NGX_ERROR) { |
1136 | 245 ngx_mail_proxy_upstream_error(s); |
422
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parents:
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changeset
|
246 return; |
edaefb2a20fc
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parents:
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247 } |
419
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248 |
1136 | 249 switch (s->mail_state) { |
587 | 250 |
1136 | 251 case ngx_pop3_start: |
252 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); | |
422
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253 |
587 | 254 s->connection->log->action = "sending user name to upstream"; |
255 | |
1136 | 256 line.len = sizeof("USER ") - 1 + s->login.len + 2; |
2049 | 257 line.data = ngx_pnalloc(c->pool, line.len); |
527 | 258 if (line.data == NULL) { |
1136 | 259 ngx_mail_proxy_internal_server_error(s); |
527 | 260 return; |
261 } | |
262 | |
1136 | 263 p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); |
264 p = ngx_cpymem(p, s->login.data, s->login.len); | |
265 *p++ = CR; *p = LF; | |
527 | 266 |
1136 | 267 s->mail_state = ngx_pop3_user; |
527 | 268 break; |
269 | |
1136 | 270 case ngx_pop3_user: |
271 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send pass"); | |
527 | 272 |
587 | 273 s->connection->log->action = "sending password to upstream"; |
274 | |
1136 | 275 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; |
2049 | 276 line.data = ngx_pnalloc(c->pool, line.len); |
501 | 277 if (line.data == NULL) { |
1136 | 278 ngx_mail_proxy_internal_server_error(s); |
527 | 279 return; |
280 } | |
281 | |
1136 | 282 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
283 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
527 | 284 *p++ = CR; *p = LF; |
285 | |
1136 | 286 s->mail_state = ngx_pop3_passwd; |
527 | 287 break; |
288 | |
1136 | 289 case ngx_pop3_passwd: |
290 s->connection->read->handler = ngx_mail_proxy_handler; | |
291 s->connection->write->handler = ngx_mail_proxy_handler; | |
292 rev->handler = ngx_mail_proxy_handler; | |
293 c->write->handler = ngx_mail_proxy_handler; | |
663 | 294 |
1136 | 295 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
663 | 296 ngx_add_timer(s->connection->read, pcf->timeout); |
297 ngx_del_timer(c->read); | |
298 | |
299 c->log->action = NULL; | |
300 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
301 | |
1136 | 302 ngx_mail_proxy_handler(s->connection->write); |
663 | 303 |
304 return; | |
305 | |
527 | 306 default: |
307 #if (NGX_SUPPRESS_WARN) | |
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308 ngx_str_null(&line); |
527 | 309 #endif |
310 break; | |
311 } | |
312 | |
539 | 313 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
527 | 314 /* |
315 * we treat the incomplete sending as NGX_ERROR | |
316 * because it is very strange here | |
317 */ | |
1136 | 318 ngx_mail_proxy_internal_server_error(s); |
527 | 319 return; |
320 } | |
321 | |
322 s->proxy->buffer->pos = s->proxy->buffer->start; | |
323 s->proxy->buffer->last = s->proxy->buffer->start; | |
324 } | |
325 | |
326 | |
327 static void | |
1136 | 328 ngx_mail_proxy_imap_handler(ngx_event_t *rev) |
527 | 329 { |
539 | 330 u_char *p; |
331 ngx_int_t rc; | |
332 ngx_str_t line; | |
333 ngx_connection_t *c; | |
1136 | 334 ngx_mail_session_t *s; |
335 ngx_mail_proxy_conf_t *pcf; | |
527 | 336 |
1136 | 337 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
338 "mail proxy imap auth handler"); | |
527 | 339 |
340 c = rev->data; | |
341 s = c->data; | |
342 | |
343 if (rev->timedout) { | |
344 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
345 "upstream timed out"); | |
577 | 346 c->timedout = 1; |
1136 | 347 ngx_mail_proxy_internal_server_error(s); |
527 | 348 return; |
349 } | |
350 | |
1136 | 351 rc = ngx_mail_proxy_read_response(s, s->mail_state); |
527 | 352 |
353 if (rc == NGX_AGAIN) { | |
354 return; | |
355 } | |
356 | |
571 | 357 if (rc == NGX_ERROR) { |
1136 | 358 ngx_mail_proxy_upstream_error(s); |
527 | 359 return; |
360 } | |
361 | |
1136 | 362 switch (s->mail_state) { |
527 | 363 |
1136 | 364 case ngx_imap_start: |
365 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
366 "mail proxy send login"); | |
527 | 367 |
1136 | 368 s->connection->log->action = "sending LOGIN command to upstream"; |
587 | 369 |
1136 | 370 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
371 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
2049 | 372 line.data = ngx_pnalloc(c->pool, line.len); |
527 | 373 if (line.data == NULL) { |
1136 | 374 ngx_mail_proxy_internal_server_error(s); |
419
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375 return; |
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376 } |
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nginx-0.0.10-2004-09-09-19:40:48 import
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parents:
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|
377 |
1136 | 378 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, |
379 &s->tag, s->login.len) | |
380 - line.data; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
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381 |
1136 | 382 s->mail_state = ngx_imap_login; |
527 | 383 break; |
384 | |
1136 | 385 case ngx_imap_login: |
386 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); | |
387 | |
388 s->connection->log->action = "sending user name to upstream"; | |
389 | |
390 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
2049 | 391 line.data = ngx_pnalloc(c->pool, line.len); |
1136 | 392 if (line.data == NULL) { |
393 ngx_mail_proxy_internal_server_error(s); | |
394 return; | |
395 } | |
396 | |
397 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, | |
398 &s->login, s->passwd.len) | |
399 - line.data; | |
400 | |
401 s->mail_state = ngx_imap_user; | |
402 break; | |
403 | |
404 case ngx_imap_user: | |
405 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
406 "mail proxy send passwd"); | |
527 | 407 |
587 | 408 s->connection->log->action = "sending password to upstream"; |
409 | |
1136 | 410 line.len = s->passwd.len + 2; |
2049 | 411 line.data = ngx_pnalloc(c->pool, line.len); |
527 | 412 if (line.data == NULL) { |
1136 | 413 ngx_mail_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
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414 return; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
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415 } |
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nginx-0.0.10-2004-09-09-19:40:48 import
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parents:
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416 |
1136 | 417 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); |
527 | 418 *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
|
419 |
1136 | 420 s->mail_state = ngx_imap_passwd; |
527 | 421 break; |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
422 |
1136 | 423 case ngx_imap_passwd: |
424 s->connection->read->handler = ngx_mail_proxy_handler; | |
425 s->connection->write->handler = ngx_mail_proxy_handler; | |
426 rev->handler = ngx_mail_proxy_handler; | |
427 c->write->handler = ngx_mail_proxy_handler; | |
663 | 428 |
1136 | 429 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
663 | 430 ngx_add_timer(s->connection->read, pcf->timeout); |
431 ngx_del_timer(c->read); | |
432 | |
433 c->log->action = NULL; | |
434 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
435 | |
1136 | 436 ngx_mail_proxy_handler(s->connection->write); |
663 | 437 |
438 return; | |
439 | |
527 | 440 default: |
441 #if (NGX_SUPPRESS_WARN) | |
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442 ngx_str_null(&line); |
527 | 443 #endif |
444 break; | |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
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445 } |
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nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
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diff
changeset
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446 |
539 | 447 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
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448 /* |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
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449 * we treat the incomplete sending as NGX_ERROR |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
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450 * because it is very strange here |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
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451 */ |
1136 | 452 ngx_mail_proxy_internal_server_error(s); |
422
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
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453 return; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
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diff
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454 } |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
changeset
|
455 |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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parents:
419
diff
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456 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
|
457 s->proxy->buffer->last = s->proxy->buffer->start; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
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parents:
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changeset
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458 } |
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parents:
418
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changeset
|
459 |
47709bff4468
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parents:
418
diff
changeset
|
460 |
521 | 461 static void |
1136 | 462 ngx_mail_proxy_smtp_handler(ngx_event_t *rev) |
463 { | |
464 u_char *p; | |
465 ngx_int_t rc; | |
466 ngx_str_t line; | |
2309 | 467 ngx_buf_t *b; |
1136 | 468 ngx_connection_t *c; |
469 ngx_mail_session_t *s; | |
470 ngx_mail_proxy_conf_t *pcf; | |
471 ngx_mail_core_srv_conf_t *cscf; | |
472 | |
473 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
474 "mail proxy smtp auth handler"); | |
475 | |
476 c = rev->data; | |
477 s = c->data; | |
478 | |
479 if (rev->timedout) { | |
480 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
481 "upstream timed out"); | |
482 c->timedout = 1; | |
483 ngx_mail_proxy_internal_server_error(s); | |
484 return; | |
485 } | |
486 | |
487 rc = ngx_mail_proxy_read_response(s, s->mail_state); | |
488 | |
489 if (rc == NGX_AGAIN) { | |
490 return; | |
491 } | |
492 | |
493 if (rc == NGX_ERROR) { | |
494 ngx_mail_proxy_upstream_error(s); | |
495 return; | |
496 } | |
497 | |
498 switch (s->mail_state) { | |
499 | |
500 case ngx_smtp_start: | |
501 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send ehlo"); | |
502 | |
503 s->connection->log->action = "sending HELO/EHLO to upstream"; | |
504 | |
505 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
506 | |
507 line.len = sizeof("HELO ") - 1 + cscf->server_name.len + 2; | |
2049 | 508 line.data = ngx_pnalloc(c->pool, line.len); |
1136 | 509 if (line.data == NULL) { |
510 ngx_mail_proxy_internal_server_error(s); | |
511 return; | |
512 } | |
513 | |
514 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
515 | |
516 p = ngx_cpymem(line.data, | |
517 ((s->esmtp || pcf->xclient) ? "EHLO " : "HELO "), | |
518 sizeof("HELO ") - 1); | |
519 | |
520 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); | |
521 *p++ = CR; *p = LF; | |
522 | |
2309 | 523 if (pcf->xclient) { |
524 s->mail_state = ngx_smtp_helo_xclient; | |
525 | |
526 } else if (s->auth_method == NGX_MAIL_AUTH_NONE) { | |
527 s->mail_state = ngx_smtp_helo_from; | |
528 | |
529 } else { | |
530 s->mail_state = ngx_smtp_helo; | |
531 } | |
1136 | 532 |
533 break; | |
534 | |
2309 | 535 case ngx_smtp_helo_xclient: |
1136 | 536 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
537 "mail proxy send xclient"); | |
538 | |
539 s->connection->log->action = "sending XCLIENT to upstream"; | |
540 | |
2497 | 541 line.len = sizeof("XCLIENT ADDR= LOGIN= NAME=" |
1892
057d362ee50e
resolver in smtp proxy module
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parents:
1487
diff
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|
542 CRLF) - 1 |
057d362ee50e
resolver in smtp proxy module
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parents:
1487
diff
changeset
|
543 + s->connection->addr_text.len + s->login.len + s->host.len; |
1136 | 544 |
2049 | 545 line.data = ngx_pnalloc(c->pool, line.len); |
1136 | 546 if (line.data == NULL) { |
547 ngx_mail_proxy_internal_server_error(s); | |
548 return; | |
549 } | |
550 | |
2309 | 551 line.len = ngx_sprintf(line.data, |
2497 | 552 "XCLIENT ADDR=%V%s%V NAME=%V" CRLF, |
2309 | 553 &s->connection->addr_text, |
554 (s->login.len ? " LOGIN=" : ""), &s->login, &s->host) | |
555 - line.data; | |
556 | |
2497 | 557 if (s->smtp_helo.len) { |
558 s->mail_state = ngx_smtp_xclient_helo; | |
559 | |
560 } else if (s->auth_method == NGX_MAIL_AUTH_NONE) { | |
561 s->mail_state = ngx_smtp_xclient_from; | |
562 | |
563 } else { | |
564 s->mail_state = ngx_smtp_xclient; | |
565 } | |
566 | |
567 break; | |
568 | |
569 case ngx_smtp_xclient_helo: | |
570 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
571 "mail proxy send client ehlo"); | |
572 | |
573 s->connection->log->action = "sending client HELO/EHLO to upstream"; | |
574 | |
575 line.len = sizeof("HELO " CRLF) - 1 + s->smtp_helo.len; | |
576 | |
577 line.data = ngx_pnalloc(c->pool, line.len); | |
578 if (line.data == NULL) { | |
579 ngx_mail_proxy_internal_server_error(s); | |
580 return; | |
581 } | |
582 | |
583 line.len = ngx_sprintf(line.data, | |
584 ((s->esmtp) ? "EHLO %V" CRLF : "HELO %V" CRLF), | |
585 &s->smtp_helo) | |
586 - line.data; | |
587 | |
2309 | 588 s->mail_state = (s->auth_method == NGX_MAIL_AUTH_NONE) ? |
2497 | 589 ngx_smtp_helo_from : ngx_smtp_helo; |
2309 | 590 |
591 break; | |
592 | |
593 case ngx_smtp_helo_from: | |
594 case ngx_smtp_xclient_from: | |
595 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
596 "mail proxy send mail from"); | |
597 | |
598 s->connection->log->action = "sending MAIL FROM to upstream"; | |
599 | |
600 line.len = s->smtp_from.len + sizeof(CRLF) - 1; | |
601 line.data = ngx_pnalloc(c->pool, line.len); | |
602 if (line.data == NULL) { | |
603 ngx_mail_proxy_internal_server_error(s); | |
604 return; | |
1136 | 605 } |
606 | |
2309 | 607 p = ngx_cpymem(line.data, s->smtp_from.data, s->smtp_from.len); |
608 *p++ = CR; *p = LF; | |
609 | |
610 s->mail_state = ngx_smtp_from; | |
611 | |
1136 | 612 break; |
613 | |
2309 | 614 case ngx_smtp_from: |
615 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
616 "mail proxy send rcpt to"); | |
617 | |
618 s->connection->log->action = "sending RCPT TO to upstream"; | |
619 | |
620 line.len = s->smtp_to.len + sizeof(CRLF) - 1; | |
621 line.data = ngx_pnalloc(c->pool, line.len); | |
622 if (line.data == NULL) { | |
623 ngx_mail_proxy_internal_server_error(s); | |
624 return; | |
625 } | |
626 | |
627 p = ngx_cpymem(line.data, s->smtp_to.data, s->smtp_to.len); | |
628 *p++ = CR; *p = LF; | |
629 | |
630 s->mail_state = ngx_smtp_to; | |
1136 | 631 |
2309 | 632 break; |
633 | |
634 case ngx_smtp_helo: | |
635 case ngx_smtp_xclient: | |
636 case ngx_smtp_to: | |
637 | |
638 b = s->proxy->buffer; | |
1136 | 639 |
2309 | 640 if (s->auth_method == NGX_MAIL_AUTH_NONE) { |
2311
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do not close session if SMTP backend returned an error on RCPT TO
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641 b->pos = b->start; |
2309 | 642 |
643 } else { | |
2440
939b40aa9ab4
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2438
diff
changeset
|
644 ngx_memcpy(b->start, smtp_auth_ok, sizeof(smtp_auth_ok) - 1); |
939b40aa9ab4
update r2439: make clear name
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parents:
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diff
changeset
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645 b->last = b->start + sizeof(smtp_auth_ok) - 1; |
2309 | 646 } |
647 | |
1136 | 648 s->connection->read->handler = ngx_mail_proxy_handler; |
649 s->connection->write->handler = ngx_mail_proxy_handler; | |
650 rev->handler = ngx_mail_proxy_handler; | |
651 c->write->handler = ngx_mail_proxy_handler; | |
652 | |
653 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
654 ngx_add_timer(s->connection->read, pcf->timeout); | |
655 ngx_del_timer(c->read); | |
656 | |
657 c->log->action = NULL; | |
658 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
659 | |
660 ngx_mail_proxy_handler(s->connection->write); | |
661 | |
662 return; | |
663 | |
664 default: | |
665 #if (NGX_SUPPRESS_WARN) | |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3505
diff
changeset
|
666 ngx_str_null(&line); |
1136 | 667 #endif |
668 break; | |
669 } | |
670 | |
671 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { | |
672 /* | |
673 * we treat the incomplete sending as NGX_ERROR | |
674 * because it is very strange here | |
675 */ | |
676 ngx_mail_proxy_internal_server_error(s); | |
677 return; | |
678 } | |
679 | |
680 s->proxy->buffer->pos = s->proxy->buffer->start; | |
681 s->proxy->buffer->last = s->proxy->buffer->start; | |
682 } | |
683 | |
684 | |
685 static void | |
686 ngx_mail_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
|
687 { |
583 | 688 ngx_connection_t *c; |
1136 | 689 ngx_mail_session_t *s; |
583 | 690 |
1136 | 691 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0, "mail proxy dummy handler"); |
583 | 692 |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
693 if (ngx_handle_write_event(wev, 0) != NGX_OK) { |
583 | 694 c = wev->data; |
695 s = c->data; | |
696 | |
1136 | 697 ngx_mail_proxy_close_session(s); |
583 | 698 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
699 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
700 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
701 |
521 | 702 static ngx_int_t |
1136 | 703 ngx_mail_proxy_read_response(ngx_mail_session_t *s, ngx_uint_t state) |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
704 { |
857 | 705 u_char *p; |
706 ssize_t n; | |
707 ngx_buf_t *b; | |
1136 | 708 ngx_mail_proxy_conf_t *pcf; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
709 |
587 | 710 s->connection->log->action = "reading response from upstream"; |
711 | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
712 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
|
713 |
539 | 714 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
715 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
|
716 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
717 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
|
718 return NGX_ERROR; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
719 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
720 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
721 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
|
722 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
723 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
724 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
725 b->last += n; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
726 |
3505
c631ef8beaaa
Zimbra IMAP server may return only 4 bytes: "+ \r\n"
Igor Sysoev <igor@sysoev.ru>
parents:
3269
diff
changeset
|
727 if (b->last - b->pos < 4) { |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
728 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
729 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
730 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
731 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
|
732 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
|
733 *(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
|
734 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
|
735 "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
|
736 b->pos); |
571 | 737 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
|
738 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
739 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
740 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
741 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
742 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
743 p = b->pos; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
744 |
1136 | 745 switch (s->protocol) { |
746 | |
747 case NGX_MAIL_POP3_PROTOCOL: | |
527 | 748 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { |
749 return NGX_OK; | |
750 } | |
1136 | 751 break; |
527 | 752 |
1136 | 753 case NGX_MAIL_IMAP_PROTOCOL: |
663 | 754 switch (state) { |
755 | |
756 case ngx_imap_start: | |
527 | 757 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { |
758 return NGX_OK; | |
759 } | |
663 | 760 break; |
527 | 761 |
663 | 762 case ngx_imap_login: |
763 case ngx_imap_user: | |
529 | 764 if (p[0] == '+') { |
527 | 765 return NGX_OK; |
766 } | |
663 | 767 break; |
768 | |
769 case ngx_imap_passwd: | |
770 if (ngx_strncmp(p, s->tag.data, s->tag.len) == 0) { | |
771 p += s->tag.len; | |
772 if (p[0] == 'O' && p[1] == 'K') { | |
773 return NGX_OK; | |
774 } | |
775 } | |
776 break; | |
527 | 777 } |
1136 | 778 |
779 break; | |
780 | |
781 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
782 switch (state) { | |
783 | |
2311
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
784 case ngx_smtp_start: |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
785 if (p[0] == '2' && p[1] == '2' && p[2] == '0') { |
1166 | 786 return NGX_OK; |
787 } | |
788 break; | |
1136 | 789 |
2311
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
790 case ngx_smtp_helo: |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
791 case ngx_smtp_helo_xclient: |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
792 case ngx_smtp_helo_from: |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
793 case ngx_smtp_from: |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
794 if (p[0] == '2' && p[1] == '5' && p[2] == '0') { |
2309 | 795 return NGX_OK; |
796 } | |
797 break; | |
798 | |
1136 | 799 case ngx_smtp_xclient: |
2309 | 800 case ngx_smtp_xclient_from: |
2497 | 801 case ngx_smtp_xclient_helo: |
2309 | 802 if (p[0] == '2' && (p[1] == '2' || p[1] == '5') && p[2] == '0') { |
1166 | 803 return NGX_OK; |
804 } | |
805 break; | |
2311
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
806 |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
807 case ngx_smtp_to: |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
808 return NGX_OK; |
1136 | 809 } |
810 | |
1166 | 811 break; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
812 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
813 |
1136 | 814 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
857 | 815 |
816 if (pcf->pass_error_message == 0) { | |
817 *(b->last - 2) = '\0'; | |
818 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
819 "upstream sent invalid response: \"%s\"", p); | |
820 return NGX_ERROR; | |
821 } | |
822 | |
823 s->out.len = b->last - p - 2; | |
824 s->out.data = p; | |
825 | |
826 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
827 "upstream sent invalid response: \"%V\"", &s->out); | |
828 | |
829 s->out.len = b->last - b->pos; | |
830 s->out.data = b->pos; | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
831 |
571 | 832 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
|
833 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
834 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
835 |
521 | 836 static void |
1136 | 837 ngx_mail_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
|
838 { |
583 | 839 char *action, *recv_action, *send_action; |
539 | 840 size_t size; |
841 ssize_t n; | |
842 ngx_buf_t *b; | |
583 | 843 ngx_uint_t do_write; |
539 | 844 ngx_connection_t *c, *src, *dst; |
1136 | 845 ngx_mail_session_t *s; |
846 ngx_mail_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
|
847 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
848 c = ev->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
849 s = c->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
850 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
851 if (ev->timedout) { |
583 | 852 c->log->action = "proxying"; |
853 | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
854 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
|
855 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
|
856 "client timed out"); |
577 | 857 c->timedout = 1; |
858 | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
859 } else { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
860 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
|
861 "upstream timed out"); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
862 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
863 |
1136 | 864 ngx_mail_proxy_close_session(s); |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
865 return; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
866 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
867 |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
868 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
|
869 if (ev->write) { |
583 | 870 recv_action = "proxying and reading from upstream"; |
871 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
|
872 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
|
873 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
874 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
|
875 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
876 } else { |
583 | 877 recv_action = "proxying and reading from client"; |
878 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
|
879 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
880 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
|
881 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
882 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
883 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
884 } else { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
885 if (ev->write) { |
589 | 886 recv_action = "proxying and reading from client"; |
887 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
|
888 src = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
889 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
890 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
891 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
892 } else { |
589 | 893 recv_action = "proxying and reading from upstream"; |
894 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
|
895 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
896 dst = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
897 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
|
898 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
899 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
900 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
901 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
|
902 |
1136 | 903 ngx_log_debug3(NGX_LOG_DEBUG_MAIL, ev->log, 0, |
904 "mail proxy handler: %d, #%d > #%d", | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
905 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
|
906 |
583 | 907 for ( ;; ) { |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
908 |
583 | 909 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
|
910 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
911 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
|
912 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
913 if (size && dst->write->ready) { |
583 | 914 c->log->action = send_action; |
915 | |
539 | 916 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
|
917 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
918 if (n == NGX_ERROR) { |
1136 | 919 ngx_mail_proxy_close_session(s); |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
920 return; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
921 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
922 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
923 if (n > 0) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
924 b->pos += n; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
925 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
926 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
|
927 b->pos = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
928 b->last = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
929 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
930 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
931 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
932 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
933 |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
934 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
|
935 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
936 if (size && src->read->ready) { |
583 | 937 c->log->action = recv_action; |
938 | |
539 | 939 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
|
940 |
583 | 941 if (n == NGX_AGAIN || n == 0) { |
942 break; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
943 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
944 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
945 if (n > 0) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
946 do_write = 1; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
947 b->last += n; |
583 | 948 |
949 continue; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
950 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
951 |
583 | 952 if (n == NGX_ERROR) { |
953 src->read->eof = 1; | |
539 | 954 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
955 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
956 |
583 | 957 break; |
958 } | |
959 | |
960 c->log->action = "proxying"; | |
961 | |
1342
be2e13691c60
fix case when client has closed connection but upstream buffer is not empty
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
962 if ((s->connection->read->eof && s->buffer->pos == s->buffer->last) |
be2e13691c60
fix case when client has closed connection but upstream buffer is not empty
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
963 || (s->proxy->upstream.connection->read->eof |
be2e13691c60
fix case when client has closed connection but upstream buffer is not empty
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
964 && s->proxy->buffer->pos == s->proxy->buffer->last) |
be2e13691c60
fix case when client has closed connection but upstream buffer is not empty
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
965 || (s->connection->read->eof |
be2e13691c60
fix case when client has closed connection but upstream buffer is not empty
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
966 && s->proxy->upstream.connection->read->eof)) |
583 | 967 { |
968 action = c->log->action; | |
969 c->log->action = NULL; | |
970 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
971 c->log->action = action; | |
972 | |
1136 | 973 ngx_mail_proxy_close_session(s); |
583 | 974 return; |
975 } | |
976 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
977 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { |
1136 | 978 ngx_mail_proxy_close_session(s); |
583 | 979 return; |
980 } | |
981 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
982 if (ngx_handle_read_event(dst->read, 0) != NGX_OK) { |
1136 | 983 ngx_mail_proxy_close_session(s); |
583 | 984 return; |
985 } | |
986 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
987 if (ngx_handle_write_event(src->write, 0) != NGX_OK) { |
1136 | 988 ngx_mail_proxy_close_session(s); |
583 | 989 return; |
990 } | |
991 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
992 if (ngx_handle_read_event(src->read, 0) != NGX_OK) { |
1136 | 993 ngx_mail_proxy_close_session(s); |
583 | 994 return; |
995 } | |
996 | |
997 if (c == s->connection) { | |
1136 | 998 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
583 | 999 ngx_add_timer(c->read, pcf->timeout); |
1000 } | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1001 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1002 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1003 |
521 | 1004 static void |
1136 | 1005 ngx_mail_proxy_upstream_error(ngx_mail_session_t *s) |
857 | 1006 { |
1007 if (s->proxy->upstream.connection) { | |
1136 | 1008 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
1009 "close mail proxy connection: %d", | |
857 | 1010 s->proxy->upstream.connection->fd); |
1011 | |
1012 ngx_close_connection(s->proxy->upstream.connection); | |
1013 } | |
1014 | |
1015 if (s->out.len == 0) { | |
1136 | 1016 ngx_mail_session_internal_server_error(s); |
857 | 1017 return; |
1018 } | |
1019 | |
1020 s->quit = 1; | |
1136 | 1021 ngx_mail_send(s->connection->write); |
857 | 1022 } |
1023 | |
1024 | |
1025 static void | |
1136 | 1026 ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s) |
527 | 1027 { |
1028 if (s->proxy->upstream.connection) { | |
1136 | 1029 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
1030 "close mail proxy connection: %d", | |
527 | 1031 s->proxy->upstream.connection->fd); |
1032 | |
1033 ngx_close_connection(s->proxy->upstream.connection); | |
1034 } | |
1035 | |
1136 | 1036 ngx_mail_session_internal_server_error(s); |
527 | 1037 } |
1038 | |
1039 | |
1040 static void | |
1136 | 1041 ngx_mail_proxy_close_session(ngx_mail_session_t *s) |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1042 { |
521 | 1043 if (s->proxy->upstream.connection) { |
1136 | 1044 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
1045 "close mail proxy connection: %d", | |
521 | 1046 s->proxy->upstream.connection->fd); |
1047 | |
1048 ngx_close_connection(s->proxy->upstream.connection); | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
1049 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
1050 |
1136 | 1051 ngx_mail_close_connection(s->connection); |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1052 } |
521 | 1053 |
1054 | |
1055 static void * | |
1136 | 1056 ngx_mail_proxy_create_conf(ngx_conf_t *cf) |
577 | 1057 { |
1136 | 1058 ngx_mail_proxy_conf_t *pcf; |
577 | 1059 |
1136 | 1060 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_proxy_conf_t)); |
521 | 1061 if (pcf == NULL) { |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2497
diff
changeset
|
1062 return NULL; |
521 | 1063 } |
1064 | |
1065 pcf->enable = NGX_CONF_UNSET; | |
857 | 1066 pcf->pass_error_message = NGX_CONF_UNSET; |
1136 | 1067 pcf->xclient = NGX_CONF_UNSET; |
539 | 1068 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
1069 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
521 | 1070 |
1071 return pcf; | |
1072 } | |
1073 | |
1074 | |
1075 static char * | |
1136 | 1076 ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
521 | 1077 { |
1136 | 1078 ngx_mail_proxy_conf_t *prev = parent; |
1079 ngx_mail_proxy_conf_t *conf = child; | |
521 | 1080 |
539 | 1081 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
857 | 1082 ngx_conf_merge_value(conf->pass_error_message, prev->pass_error_message, 0); |
1136 | 1083 ngx_conf_merge_value(conf->xclient, prev->xclient, 1); |
539 | 1084 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, |
1085 (size_t) ngx_pagesize); | |
1086 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
521 | 1087 |
1088 return NGX_CONF_OK; | |
1089 } |