Mercurial > hg > nginx
annotate src/mail/ngx_mail_proxy_module.c @ 4258:87485411a683 stable-1.0
Merging r4210:
Fixed utf8 decode (ticket #25).
Patch by Alexey Kuts.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 01 Nov 2011 14:20:43 +0000 |
parents | dd1570b6f237 |
children | e444e8f6538b |
rev | line source |
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1 |
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2 /* |
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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> |
1136 | 11 #include <ngx_mail.h> |
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13 |
521 | 14 typedef struct { |
15 ngx_flag_t enable; | |
857 | 16 ngx_flag_t pass_error_message; |
1136 | 17 ngx_flag_t xclient; |
539 | 18 size_t buffer_size; |
19 ngx_msec_t timeout; | |
1136 | 20 } ngx_mail_proxy_conf_t; |
521 | 21 |
22 | |
1136 | 23 static void ngx_mail_proxy_block_read(ngx_event_t *rev); |
24 static void ngx_mail_proxy_pop3_handler(ngx_event_t *rev); | |
25 static void ngx_mail_proxy_imap_handler(ngx_event_t *rev); | |
26 static void ngx_mail_proxy_smtp_handler(ngx_event_t *rev); | |
27 static void ngx_mail_proxy_dummy_handler(ngx_event_t *ev); | |
28 static ngx_int_t ngx_mail_proxy_read_response(ngx_mail_session_t *s, | |
663 | 29 ngx_uint_t state); |
1136 | 30 static void ngx_mail_proxy_handler(ngx_event_t *ev); |
31 static void ngx_mail_proxy_upstream_error(ngx_mail_session_t *s); | |
32 static void ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s); | |
33 static void ngx_mail_proxy_close_session(ngx_mail_session_t *s); | |
34 static void *ngx_mail_proxy_create_conf(ngx_conf_t *cf); | |
35 static char *ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, | |
521 | 36 void *child); |
37 | |
38 | |
1136 | 39 static ngx_command_t ngx_mail_proxy_commands[] = { |
539 | 40 |
521 | 41 { ngx_string("proxy"), |
1136 | 42 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, |
521 | 43 ngx_conf_set_flag_slot, |
1136 | 44 NGX_MAIL_SRV_CONF_OFFSET, |
45 offsetof(ngx_mail_proxy_conf_t, enable), | |
521 | 46 NULL }, |
47 | |
539 | 48 { ngx_string("proxy_buffer"), |
1136 | 49 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 50 ngx_conf_set_size_slot, |
1136 | 51 NGX_MAIL_SRV_CONF_OFFSET, |
52 offsetof(ngx_mail_proxy_conf_t, buffer_size), | |
539 | 53 NULL }, |
54 | |
55 { ngx_string("proxy_timeout"), | |
1136 | 56 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
539 | 57 ngx_conf_set_msec_slot, |
1136 | 58 NGX_MAIL_SRV_CONF_OFFSET, |
59 offsetof(ngx_mail_proxy_conf_t, timeout), | |
539 | 60 NULL }, |
61 | |
857 | 62 { ngx_string("proxy_pass_error_message"), |
1136 | 63 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1, |
857 | 64 ngx_conf_set_flag_slot, |
1136 | 65 NGX_MAIL_SRV_CONF_OFFSET, |
66 offsetof(ngx_mail_proxy_conf_t, pass_error_message), | |
67 NULL }, | |
68 | |
69 { ngx_string("xclient"), | |
70 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_FLAG, | |
71 ngx_conf_set_flag_slot, | |
72 NGX_MAIL_SRV_CONF_OFFSET, | |
73 offsetof(ngx_mail_proxy_conf_t, xclient), | |
857 | 74 NULL }, |
75 | |
521 | 76 ngx_null_command |
77 }; | |
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78 |
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79 |
1136 | 80 static ngx_mail_module_t ngx_mail_proxy_module_ctx = { |
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81 NULL, /* protocol */ |
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82 |
521 | 83 NULL, /* create main configuration */ |
84 NULL, /* init main configuration */ | |
85 | |
1136 | 86 ngx_mail_proxy_create_conf, /* create server configuration */ |
87 ngx_mail_proxy_merge_conf /* merge server configuration */ | |
521 | 88 }; |
89 | |
90 | |
1136 | 91 ngx_module_t ngx_mail_proxy_module = { |
521 | 92 NGX_MODULE_V1, |
1136 | 93 &ngx_mail_proxy_module_ctx, /* module context */ |
94 ngx_mail_proxy_commands, /* module directives */ | |
95 NGX_MAIL_MODULE, /* module type */ | |
541 | 96 NULL, /* init master */ |
521 | 97 NULL, /* init module */ |
541 | 98 NULL, /* init process */ |
99 NULL, /* init thread */ | |
100 NULL, /* exit thread */ | |
101 NULL, /* exit process */ | |
102 NULL, /* exit master */ | |
103 NGX_MODULE_V1_PADDING | |
521 | 104 }; |
105 | |
106 | |
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107 static u_char smtp_auth_ok[] = "235 2.0.0 OK" CRLF; |
1136 | 108 |
109 | |
521 | 110 void |
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111 ngx_mail_proxy_init(ngx_mail_session_t *s, ngx_addr_t *peer) |
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112 { |
587 | 113 int keepalive; |
527 | 114 ngx_int_t rc; |
1136 | 115 ngx_mail_proxy_ctx_t *p; |
116 ngx_mail_proxy_conf_t *pcf; | |
117 ngx_mail_core_srv_conf_t *cscf; | |
419
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118 |
587 | 119 s->connection->log->action = "connecting to upstream"; |
120 | |
1136 | 121 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
587 | 122 |
123 if (cscf->so_keepalive) { | |
124 keepalive = 1; | |
125 | |
126 if (setsockopt(s->connection->fd, SOL_SOCKET, SO_KEEPALIVE, | |
127 (const void *) &keepalive, sizeof(int)) | |
128 == -1) | |
129 { | |
130 ngx_log_error(NGX_LOG_ALERT, s->connection->log, ngx_socket_errno, | |
131 "setsockopt(SO_KEEPALIVE) failed"); | |
132 } | |
133 } | |
134 | |
1136 | 135 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_mail_proxy_ctx_t)); |
501 | 136 if (p == NULL) { |
1136 | 137 ngx_mail_session_internal_server_error(s); |
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138 return; |
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139 } |
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140 |
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141 s->proxy = p; |
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142 |
884 | 143 p->upstream.sockaddr = peer->sockaddr; |
144 p->upstream.socklen = peer->socklen; | |
145 p->upstream.name = &peer->name; | |
146 p->upstream.get = ngx_event_get_peer; | |
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147 p->upstream.log = s->connection->log; |
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148 p->upstream.log_error = NGX_ERROR_ERR; |
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149 |
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150 rc = ngx_event_connect_peer(&p->upstream); |
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151 |
543 | 152 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
1136 | 153 ngx_mail_proxy_internal_server_error(s); |
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154 return; |
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155 } |
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156 |
527 | 157 ngx_add_timer(p->upstream.connection->read, cscf->timeout); |
158 | |
419
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159 p->upstream.connection->data = s; |
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160 p->upstream.connection->pool = s->connection->pool; |
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161 |
1136 | 162 s->connection->read->handler = ngx_mail_proxy_block_read; |
163 p->upstream.connection->write->handler = ngx_mail_proxy_dummy_handler; | |
164 | |
165 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
166 | |
167 s->proxy->buffer = ngx_create_temp_buf(s->connection->pool, | |
168 pcf->buffer_size); | |
169 if (s->proxy->buffer == NULL) { | |
170 ngx_mail_proxy_internal_server_error(s); | |
171 return; | |
172 } | |
173 | |
1981 | 174 s->out.len = 0; |
175 | |
1136 | 176 switch (s->protocol) { |
527 | 177 |
1136 | 178 case NGX_MAIL_POP3_PROTOCOL: |
179 p->upstream.connection->read->handler = ngx_mail_proxy_pop3_handler; | |
180 s->mail_state = ngx_pop3_start; | |
181 break; | |
527 | 182 |
1136 | 183 case NGX_MAIL_IMAP_PROTOCOL: |
184 p->upstream.connection->read->handler = ngx_mail_proxy_imap_handler; | |
185 s->mail_state = ngx_imap_start; | |
186 break; | |
187 | |
188 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
189 p->upstream.connection->read->handler = ngx_mail_proxy_smtp_handler; | |
190 s->mail_state = ngx_smtp_start; | |
191 break; | |
527 | 192 } |
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193 } |
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194 |
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195 |
521 | 196 static void |
1136 | 197 ngx_mail_proxy_block_read(ngx_event_t *rev) |
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198 { |
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199 ngx_connection_t *c; |
1136 | 200 ngx_mail_session_t *s; |
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201 |
1136 | 202 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy block read"); |
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203 |
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204 if (ngx_handle_read_event(rev, 0) != NGX_OK) { |
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205 c = rev->data; |
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206 s = c->data; |
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207 |
1136 | 208 ngx_mail_proxy_close_session(s); |
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209 } |
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210 } |
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211 |
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212 |
521 | 213 static void |
1136 | 214 ngx_mail_proxy_pop3_handler(ngx_event_t *rev) |
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215 { |
539 | 216 u_char *p; |
217 ngx_int_t rc; | |
218 ngx_str_t line; | |
219 ngx_connection_t *c; | |
1136 | 220 ngx_mail_session_t *s; |
221 ngx_mail_proxy_conf_t *pcf; | |
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222 |
1136 | 223 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
224 "mail proxy pop3 auth handler"); | |
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225 |
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226 c = rev->data; |
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227 s = c->data; |
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228 |
423
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229 if (rev->timedout) { |
527 | 230 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
231 "upstream timed out"); | |
577 | 232 c->timedout = 1; |
1136 | 233 ngx_mail_proxy_internal_server_error(s); |
423
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234 return; |
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235 } |
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236 |
1136 | 237 rc = ngx_mail_proxy_read_response(s, 0); |
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238 |
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239 if (rc == NGX_AGAIN) { |
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240 return; |
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241 } |
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242 |
571 | 243 if (rc == NGX_ERROR) { |
1136 | 244 ngx_mail_proxy_upstream_error(s); |
422
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245 return; |
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246 } |
419
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247 |
1136 | 248 switch (s->mail_state) { |
587 | 249 |
1136 | 250 case ngx_pop3_start: |
251 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); | |
422
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252 |
587 | 253 s->connection->log->action = "sending user name to upstream"; |
254 | |
1136 | 255 line.len = sizeof("USER ") - 1 + s->login.len + 2; |
2049 | 256 line.data = ngx_pnalloc(c->pool, line.len); |
527 | 257 if (line.data == NULL) { |
1136 | 258 ngx_mail_proxy_internal_server_error(s); |
527 | 259 return; |
260 } | |
261 | |
1136 | 262 p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); |
263 p = ngx_cpymem(p, s->login.data, s->login.len); | |
264 *p++ = CR; *p = LF; | |
527 | 265 |
1136 | 266 s->mail_state = ngx_pop3_user; |
527 | 267 break; |
268 | |
1136 | 269 case ngx_pop3_user: |
270 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send pass"); | |
527 | 271 |
587 | 272 s->connection->log->action = "sending password to upstream"; |
273 | |
1136 | 274 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; |
2049 | 275 line.data = ngx_pnalloc(c->pool, line.len); |
501 | 276 if (line.data == NULL) { |
1136 | 277 ngx_mail_proxy_internal_server_error(s); |
527 | 278 return; |
279 } | |
280 | |
1136 | 281 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
282 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
527 | 283 *p++ = CR; *p = LF; |
284 | |
1136 | 285 s->mail_state = ngx_pop3_passwd; |
527 | 286 break; |
287 | |
1136 | 288 case ngx_pop3_passwd: |
289 s->connection->read->handler = ngx_mail_proxy_handler; | |
290 s->connection->write->handler = ngx_mail_proxy_handler; | |
291 rev->handler = ngx_mail_proxy_handler; | |
292 c->write->handler = ngx_mail_proxy_handler; | |
663 | 293 |
1136 | 294 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
663 | 295 ngx_add_timer(s->connection->read, pcf->timeout); |
296 ngx_del_timer(c->read); | |
297 | |
298 c->log->action = NULL; | |
299 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
300 | |
1136 | 301 ngx_mail_proxy_handler(s->connection->write); |
663 | 302 |
303 return; | |
304 | |
527 | 305 default: |
306 #if (NGX_SUPPRESS_WARN) | |
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307 ngx_str_null(&line); |
527 | 308 #endif |
309 break; | |
310 } | |
311 | |
539 | 312 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
527 | 313 /* |
314 * we treat the incomplete sending as NGX_ERROR | |
315 * because it is very strange here | |
316 */ | |
1136 | 317 ngx_mail_proxy_internal_server_error(s); |
527 | 318 return; |
319 } | |
320 | |
321 s->proxy->buffer->pos = s->proxy->buffer->start; | |
322 s->proxy->buffer->last = s->proxy->buffer->start; | |
323 } | |
324 | |
325 | |
326 static void | |
1136 | 327 ngx_mail_proxy_imap_handler(ngx_event_t *rev) |
527 | 328 { |
539 | 329 u_char *p; |
330 ngx_int_t rc; | |
331 ngx_str_t line; | |
332 ngx_connection_t *c; | |
1136 | 333 ngx_mail_session_t *s; |
334 ngx_mail_proxy_conf_t *pcf; | |
527 | 335 |
1136 | 336 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
337 "mail proxy imap auth handler"); | |
527 | 338 |
339 c = rev->data; | |
340 s = c->data; | |
341 | |
342 if (rev->timedout) { | |
343 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
344 "upstream timed out"); | |
577 | 345 c->timedout = 1; |
1136 | 346 ngx_mail_proxy_internal_server_error(s); |
527 | 347 return; |
348 } | |
349 | |
1136 | 350 rc = ngx_mail_proxy_read_response(s, s->mail_state); |
527 | 351 |
352 if (rc == NGX_AGAIN) { | |
353 return; | |
354 } | |
355 | |
571 | 356 if (rc == NGX_ERROR) { |
1136 | 357 ngx_mail_proxy_upstream_error(s); |
527 | 358 return; |
359 } | |
360 | |
1136 | 361 switch (s->mail_state) { |
527 | 362 |
1136 | 363 case ngx_imap_start: |
364 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
365 "mail proxy send login"); | |
527 | 366 |
1136 | 367 s->connection->log->action = "sending LOGIN command to upstream"; |
587 | 368 |
1136 | 369 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
370 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
2049 | 371 line.data = ngx_pnalloc(c->pool, line.len); |
527 | 372 if (line.data == NULL) { |
1136 | 373 ngx_mail_proxy_internal_server_error(s); |
419
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374 return; |
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375 } |
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376 |
1136 | 377 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, |
378 &s->tag, s->login.len) | |
379 - line.data; | |
422
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380 |
1136 | 381 s->mail_state = ngx_imap_login; |
527 | 382 break; |
383 | |
1136 | 384 case ngx_imap_login: |
385 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); | |
386 | |
387 s->connection->log->action = "sending user name to upstream"; | |
388 | |
389 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
2049 | 390 line.data = ngx_pnalloc(c->pool, line.len); |
1136 | 391 if (line.data == NULL) { |
392 ngx_mail_proxy_internal_server_error(s); | |
393 return; | |
394 } | |
395 | |
396 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, | |
397 &s->login, s->passwd.len) | |
398 - line.data; | |
399 | |
400 s->mail_state = ngx_imap_user; | |
401 break; | |
402 | |
403 case ngx_imap_user: | |
404 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
405 "mail proxy send passwd"); | |
527 | 406 |
587 | 407 s->connection->log->action = "sending password to upstream"; |
408 | |
1136 | 409 line.len = s->passwd.len + 2; |
2049 | 410 line.data = ngx_pnalloc(c->pool, line.len); |
527 | 411 if (line.data == NULL) { |
1136 | 412 ngx_mail_proxy_internal_server_error(s); |
422
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413 return; |
419
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414 } |
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415 |
1136 | 416 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); |
527 | 417 *p++ = CR; *p = LF; |
422
edaefb2a20fc
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418 |
1136 | 419 s->mail_state = ngx_imap_passwd; |
527 | 420 break; |
422
edaefb2a20fc
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421 |
1136 | 422 case ngx_imap_passwd: |
423 s->connection->read->handler = ngx_mail_proxy_handler; | |
424 s->connection->write->handler = ngx_mail_proxy_handler; | |
425 rev->handler = ngx_mail_proxy_handler; | |
426 c->write->handler = ngx_mail_proxy_handler; | |
663 | 427 |
1136 | 428 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
663 | 429 ngx_add_timer(s->connection->read, pcf->timeout); |
430 ngx_del_timer(c->read); | |
431 | |
432 c->log->action = NULL; | |
433 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
434 | |
1136 | 435 ngx_mail_proxy_handler(s->connection->write); |
663 | 436 |
437 return; | |
438 | |
527 | 439 default: |
440 #if (NGX_SUPPRESS_WARN) | |
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441 ngx_str_null(&line); |
527 | 442 #endif |
443 break; | |
422
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444 } |
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445 |
539 | 446 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
422
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447 /* |
edaefb2a20fc
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448 * we treat the incomplete sending as NGX_ERROR |
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449 * because it is very strange here |
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450 */ |
1136 | 451 ngx_mail_proxy_internal_server_error(s); |
422
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452 return; |
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453 } |
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454 |
edaefb2a20fc
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455 s->proxy->buffer->pos = s->proxy->buffer->start; |
edaefb2a20fc
nginx-0.0.10-2004-09-12-00:22:11 import
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456 s->proxy->buffer->last = s->proxy->buffer->start; |
419
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457 } |
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458 |
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459 |
521 | 460 static void |
1136 | 461 ngx_mail_proxy_smtp_handler(ngx_event_t *rev) |
462 { | |
463 u_char *p; | |
464 ngx_int_t rc; | |
465 ngx_str_t line; | |
2309 | 466 ngx_buf_t *b; |
1136 | 467 ngx_connection_t *c; |
468 ngx_mail_session_t *s; | |
469 ngx_mail_proxy_conf_t *pcf; | |
470 ngx_mail_core_srv_conf_t *cscf; | |
471 | |
472 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
473 "mail proxy smtp auth handler"); | |
474 | |
475 c = rev->data; | |
476 s = c->data; | |
477 | |
478 if (rev->timedout) { | |
479 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
480 "upstream timed out"); | |
481 c->timedout = 1; | |
482 ngx_mail_proxy_internal_server_error(s); | |
483 return; | |
484 } | |
485 | |
486 rc = ngx_mail_proxy_read_response(s, s->mail_state); | |
487 | |
488 if (rc == NGX_AGAIN) { | |
489 return; | |
490 } | |
491 | |
492 if (rc == NGX_ERROR) { | |
493 ngx_mail_proxy_upstream_error(s); | |
494 return; | |
495 } | |
496 | |
497 switch (s->mail_state) { | |
498 | |
499 case ngx_smtp_start: | |
500 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send ehlo"); | |
501 | |
502 s->connection->log->action = "sending HELO/EHLO to upstream"; | |
503 | |
504 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
505 | |
506 line.len = sizeof("HELO ") - 1 + cscf->server_name.len + 2; | |
2049 | 507 line.data = ngx_pnalloc(c->pool, line.len); |
1136 | 508 if (line.data == NULL) { |
509 ngx_mail_proxy_internal_server_error(s); | |
510 return; | |
511 } | |
512 | |
513 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
514 | |
515 p = ngx_cpymem(line.data, | |
516 ((s->esmtp || pcf->xclient) ? "EHLO " : "HELO "), | |
517 sizeof("HELO ") - 1); | |
518 | |
519 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); | |
520 *p++ = CR; *p = LF; | |
521 | |
2309 | 522 if (pcf->xclient) { |
523 s->mail_state = ngx_smtp_helo_xclient; | |
524 | |
525 } else if (s->auth_method == NGX_MAIL_AUTH_NONE) { | |
526 s->mail_state = ngx_smtp_helo_from; | |
527 | |
528 } else { | |
529 s->mail_state = ngx_smtp_helo; | |
530 } | |
1136 | 531 |
532 break; | |
533 | |
2309 | 534 case ngx_smtp_helo_xclient: |
1136 | 535 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
536 "mail proxy send xclient"); | |
537 | |
538 s->connection->log->action = "sending XCLIENT to upstream"; | |
539 | |
2497 | 540 line.len = sizeof("XCLIENT ADDR= LOGIN= NAME=" |
1892
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|
541 CRLF) - 1 |
057d362ee50e
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changeset
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542 + s->connection->addr_text.len + s->login.len + s->host.len; |
1136 | 543 |
2049 | 544 line.data = ngx_pnalloc(c->pool, line.len); |
1136 | 545 if (line.data == NULL) { |
546 ngx_mail_proxy_internal_server_error(s); | |
547 return; | |
548 } | |
549 | |
2309 | 550 line.len = ngx_sprintf(line.data, |
2497 | 551 "XCLIENT ADDR=%V%s%V NAME=%V" CRLF, |
2309 | 552 &s->connection->addr_text, |
553 (s->login.len ? " LOGIN=" : ""), &s->login, &s->host) | |
554 - line.data; | |
555 | |
2497 | 556 if (s->smtp_helo.len) { |
557 s->mail_state = ngx_smtp_xclient_helo; | |
558 | |
559 } else if (s->auth_method == NGX_MAIL_AUTH_NONE) { | |
560 s->mail_state = ngx_smtp_xclient_from; | |
561 | |
562 } else { | |
563 s->mail_state = ngx_smtp_xclient; | |
564 } | |
565 | |
566 break; | |
567 | |
568 case ngx_smtp_xclient_helo: | |
569 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
570 "mail proxy send client ehlo"); | |
571 | |
572 s->connection->log->action = "sending client HELO/EHLO to upstream"; | |
573 | |
574 line.len = sizeof("HELO " CRLF) - 1 + s->smtp_helo.len; | |
575 | |
576 line.data = ngx_pnalloc(c->pool, line.len); | |
577 if (line.data == NULL) { | |
578 ngx_mail_proxy_internal_server_error(s); | |
579 return; | |
580 } | |
581 | |
582 line.len = ngx_sprintf(line.data, | |
583 ((s->esmtp) ? "EHLO %V" CRLF : "HELO %V" CRLF), | |
584 &s->smtp_helo) | |
585 - line.data; | |
586 | |
2309 | 587 s->mail_state = (s->auth_method == NGX_MAIL_AUTH_NONE) ? |
2497 | 588 ngx_smtp_helo_from : ngx_smtp_helo; |
2309 | 589 |
590 break; | |
591 | |
592 case ngx_smtp_helo_from: | |
593 case ngx_smtp_xclient_from: | |
594 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
595 "mail proxy send mail from"); | |
596 | |
597 s->connection->log->action = "sending MAIL FROM to upstream"; | |
598 | |
599 line.len = s->smtp_from.len + sizeof(CRLF) - 1; | |
600 line.data = ngx_pnalloc(c->pool, line.len); | |
601 if (line.data == NULL) { | |
602 ngx_mail_proxy_internal_server_error(s); | |
603 return; | |
1136 | 604 } |
605 | |
2309 | 606 p = ngx_cpymem(line.data, s->smtp_from.data, s->smtp_from.len); |
607 *p++ = CR; *p = LF; | |
608 | |
609 s->mail_state = ngx_smtp_from; | |
610 | |
1136 | 611 break; |
612 | |
2309 | 613 case ngx_smtp_from: |
614 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
615 "mail proxy send rcpt to"); | |
616 | |
617 s->connection->log->action = "sending RCPT TO to upstream"; | |
618 | |
619 line.len = s->smtp_to.len + sizeof(CRLF) - 1; | |
620 line.data = ngx_pnalloc(c->pool, line.len); | |
621 if (line.data == NULL) { | |
622 ngx_mail_proxy_internal_server_error(s); | |
623 return; | |
624 } | |
625 | |
626 p = ngx_cpymem(line.data, s->smtp_to.data, s->smtp_to.len); | |
627 *p++ = CR; *p = LF; | |
628 | |
629 s->mail_state = ngx_smtp_to; | |
1136 | 630 |
2309 | 631 break; |
632 | |
633 case ngx_smtp_helo: | |
634 case ngx_smtp_xclient: | |
635 case ngx_smtp_to: | |
636 | |
637 b = s->proxy->buffer; | |
1136 | 638 |
2309 | 639 if (s->auth_method == NGX_MAIL_AUTH_NONE) { |
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640 b->pos = b->start; |
2309 | 641 |
642 } else { | |
2440
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diff
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|
643 ngx_memcpy(b->start, smtp_auth_ok, sizeof(smtp_auth_ok) - 1); |
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644 b->last = b->start + sizeof(smtp_auth_ok) - 1; |
2309 | 645 } |
646 | |
1136 | 647 s->connection->read->handler = ngx_mail_proxy_handler; |
648 s->connection->write->handler = ngx_mail_proxy_handler; | |
649 rev->handler = ngx_mail_proxy_handler; | |
650 c->write->handler = ngx_mail_proxy_handler; | |
651 | |
652 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
653 ngx_add_timer(s->connection->read, pcf->timeout); | |
654 ngx_del_timer(c->read); | |
655 | |
656 c->log->action = NULL; | |
657 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
658 | |
659 ngx_mail_proxy_handler(s->connection->write); | |
660 | |
661 return; | |
662 | |
663 default: | |
664 #if (NGX_SUPPRESS_WARN) | |
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parents:
3505
diff
changeset
|
665 ngx_str_null(&line); |
1136 | 666 #endif |
667 break; | |
668 } | |
669 | |
670 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { | |
671 /* | |
672 * we treat the incomplete sending as NGX_ERROR | |
673 * because it is very strange here | |
674 */ | |
675 ngx_mail_proxy_internal_server_error(s); | |
676 return; | |
677 } | |
678 | |
679 s->proxy->buffer->pos = s->proxy->buffer->start; | |
680 s->proxy->buffer->last = s->proxy->buffer->start; | |
681 } | |
682 | |
683 | |
684 static void | |
685 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
|
686 { |
583 | 687 ngx_connection_t *c; |
1136 | 688 ngx_mail_session_t *s; |
583 | 689 |
1136 | 690 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0, "mail proxy dummy handler"); |
583 | 691 |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
692 if (ngx_handle_write_event(wev, 0) != NGX_OK) { |
583 | 693 c = wev->data; |
694 s = c->data; | |
695 | |
1136 | 696 ngx_mail_proxy_close_session(s); |
583 | 697 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
698 } |
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 |
521 | 701 static ngx_int_t |
1136 | 702 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
|
703 { |
857 | 704 u_char *p; |
705 ssize_t n; | |
706 ngx_buf_t *b; | |
1136 | 707 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
|
708 |
587 | 709 s->connection->log->action = "reading response from upstream"; |
710 | |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
711 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
|
712 |
539 | 713 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
714 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
|
715 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
716 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
|
717 return NGX_ERROR; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
718 } |
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 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
|
721 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
722 } |
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 b->last += n; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
725 |
3505
c631ef8beaaa
Zimbra IMAP server may return only 4 bytes: "+ \r\n"
Igor Sysoev <igor@sysoev.ru>
parents:
3269
diff
changeset
|
726 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
|
727 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
728 } |
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 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
|
731 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
|
732 *(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
|
733 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
|
734 "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
|
735 b->pos); |
571 | 736 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
|
737 } |
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 return NGX_AGAIN; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
740 } |
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 p = b->pos; |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
743 |
1136 | 744 switch (s->protocol) { |
745 | |
746 case NGX_MAIL_POP3_PROTOCOL: | |
527 | 747 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { |
748 return NGX_OK; | |
749 } | |
1136 | 750 break; |
527 | 751 |
1136 | 752 case NGX_MAIL_IMAP_PROTOCOL: |
663 | 753 switch (state) { |
754 | |
755 case ngx_imap_start: | |
527 | 756 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { |
757 return NGX_OK; | |
758 } | |
663 | 759 break; |
527 | 760 |
663 | 761 case ngx_imap_login: |
762 case ngx_imap_user: | |
529 | 763 if (p[0] == '+') { |
527 | 764 return NGX_OK; |
765 } | |
663 | 766 break; |
767 | |
768 case ngx_imap_passwd: | |
769 if (ngx_strncmp(p, s->tag.data, s->tag.len) == 0) { | |
770 p += s->tag.len; | |
771 if (p[0] == 'O' && p[1] == 'K') { | |
772 return NGX_OK; | |
773 } | |
774 } | |
775 break; | |
527 | 776 } |
1136 | 777 |
778 break; | |
779 | |
780 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
781 switch (state) { | |
782 | |
2311
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
783 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
|
784 if (p[0] == '2' && p[1] == '2' && p[2] == '0') { |
1166 | 785 return NGX_OK; |
786 } | |
787 break; | |
1136 | 788 |
2311
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
789 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
|
790 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
|
791 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
|
792 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
|
793 if (p[0] == '2' && p[1] == '5' && p[2] == '0') { |
2309 | 794 return NGX_OK; |
795 } | |
796 break; | |
797 | |
1136 | 798 case ngx_smtp_xclient: |
2309 | 799 case ngx_smtp_xclient_from: |
2497 | 800 case ngx_smtp_xclient_helo: |
2309 | 801 if (p[0] == '2' && (p[1] == '2' || p[1] == '5') && p[2] == '0') { |
1166 | 802 return NGX_OK; |
803 } | |
804 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
|
805 |
6bad42a41dd8
do not close session if SMTP backend returned an error on RCPT TO
Igor Sysoev <igor@sysoev.ru>
parents:
2309
diff
changeset
|
806 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
|
807 return NGX_OK; |
1136 | 808 } |
809 | |
1166 | 810 break; |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
811 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
812 |
1136 | 813 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
857 | 814 |
815 if (pcf->pass_error_message == 0) { | |
816 *(b->last - 2) = '\0'; | |
817 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
818 "upstream sent invalid response: \"%s\"", p); | |
819 return NGX_ERROR; | |
820 } | |
821 | |
822 s->out.len = b->last - p - 2; | |
823 s->out.data = p; | |
824 | |
825 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
826 "upstream sent invalid response: \"%V\"", &s->out); | |
827 | |
828 s->out.len = b->last - b->pos; | |
829 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
|
830 |
571 | 831 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
|
832 } |
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 |
521 | 835 static void |
1136 | 836 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
|
837 { |
583 | 838 char *action, *recv_action, *send_action; |
539 | 839 size_t size; |
840 ssize_t n; | |
841 ngx_buf_t *b; | |
583 | 842 ngx_uint_t do_write; |
539 | 843 ngx_connection_t *c, *src, *dst; |
1136 | 844 ngx_mail_session_t *s; |
845 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
|
846 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
847 c = ev->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
848 s = c->data; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
849 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
850 if (ev->timedout) { |
583 | 851 c->log->action = "proxying"; |
852 | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
853 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
|
854 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
|
855 "client timed out"); |
577 | 856 c->timedout = 1; |
857 | |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
858 } else { |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
859 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
|
860 "upstream timed out"); |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
861 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
862 |
1136 | 863 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
|
864 return; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
865 } |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
866 |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
867 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
|
868 if (ev->write) { |
583 | 869 recv_action = "proxying and reading from upstream"; |
870 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
|
871 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
|
872 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
873 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
|
874 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
875 } else { |
583 | 876 recv_action = "proxying and reading from client"; |
877 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
|
878 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
879 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
|
880 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
881 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
882 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
883 } else { |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
884 if (ev->write) { |
589 | 885 recv_action = "proxying and reading from client"; |
886 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
|
887 src = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
888 dst = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
889 b = s->buffer; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
890 |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
891 } else { |
589 | 892 recv_action = "proxying and reading from upstream"; |
893 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
|
894 src = c; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
895 dst = s->connection; |
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
896 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
|
897 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
898 } |
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 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
|
901 |
1136 | 902 ngx_log_debug3(NGX_LOG_DEBUG_MAIL, ev->log, 0, |
903 "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
|
904 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
|
905 |
583 | 906 for ( ;; ) { |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
907 |
583 | 908 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
|
909 |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
910 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
|
911 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
912 if (size && dst->write->ready) { |
583 | 913 c->log->action = send_action; |
914 | |
539 | 915 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
|
916 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
917 if (n == NGX_ERROR) { |
1136 | 918 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
|
919 return; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
920 } |
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 if (n > 0) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
923 b->pos += n; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
924 |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
925 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
|
926 b->pos = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
927 b->last = b->start; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
928 } |
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 |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
933 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
|
934 |
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
935 if (size && src->read->ready) { |
583 | 936 c->log->action = recv_action; |
937 | |
539 | 938 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
|
939 |
583 | 940 if (n == NGX_AGAIN || n == 0) { |
941 break; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
942 } |
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 if (n > 0) { |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
945 do_write = 1; |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
946 b->last += n; |
583 | 947 |
948 continue; | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
949 } |
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
950 |
583 | 951 if (n == NGX_ERROR) { |
952 src->read->eof = 1; | |
539 | 953 } |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
954 } |
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
955 |
583 | 956 break; |
957 } | |
958 | |
959 c->log->action = "proxying"; | |
960 | |
1342
be2e13691c60
fix case when client has closed connection but upstream buffer is not empty
Igor Sysoev <igor@sysoev.ru>
parents:
1166
diff
changeset
|
961 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
|
962 || (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
|
963 && 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
|
964 || (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
|
965 && s->proxy->upstream.connection->read->eof)) |
583 | 966 { |
967 action = c->log->action; | |
968 c->log->action = NULL; | |
969 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
970 c->log->action = action; | |
971 | |
1136 | 972 ngx_mail_proxy_close_session(s); |
583 | 973 return; |
974 } | |
975 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
976 if (ngx_handle_write_event(dst->write, 0) != NGX_OK) { |
1136 | 977 ngx_mail_proxy_close_session(s); |
583 | 978 return; |
979 } | |
980 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
981 if (ngx_handle_read_event(dst->read, 0) != NGX_OK) { |
1136 | 982 ngx_mail_proxy_close_session(s); |
583 | 983 return; |
984 } | |
985 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
986 if (ngx_handle_write_event(src->write, 0) != NGX_OK) { |
1136 | 987 ngx_mail_proxy_close_session(s); |
583 | 988 return; |
989 } | |
990 | |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2311
diff
changeset
|
991 if (ngx_handle_read_event(src->read, 0) != NGX_OK) { |
1136 | 992 ngx_mail_proxy_close_session(s); |
583 | 993 return; |
994 } | |
995 | |
996 if (c == s->connection) { | |
1136 | 997 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
583 | 998 ngx_add_timer(c->read, pcf->timeout); |
999 } | |
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1000 } |
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 |
521 | 1003 static void |
1136 | 1004 ngx_mail_proxy_upstream_error(ngx_mail_session_t *s) |
857 | 1005 { |
1006 if (s->proxy->upstream.connection) { | |
1136 | 1007 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
1008 "close mail proxy connection: %d", | |
857 | 1009 s->proxy->upstream.connection->fd); |
1010 | |
1011 ngx_close_connection(s->proxy->upstream.connection); | |
1012 } | |
1013 | |
1014 if (s->out.len == 0) { | |
1136 | 1015 ngx_mail_session_internal_server_error(s); |
857 | 1016 return; |
1017 } | |
1018 | |
1019 s->quit = 1; | |
1136 | 1020 ngx_mail_send(s->connection->write); |
857 | 1021 } |
1022 | |
1023 | |
1024 static void | |
1136 | 1025 ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s) |
527 | 1026 { |
1027 if (s->proxy->upstream.connection) { | |
1136 | 1028 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
1029 "close mail proxy connection: %d", | |
527 | 1030 s->proxy->upstream.connection->fd); |
1031 | |
1032 ngx_close_connection(s->proxy->upstream.connection); | |
1033 } | |
1034 | |
1136 | 1035 ngx_mail_session_internal_server_error(s); |
527 | 1036 } |
1037 | |
1038 | |
1039 static void | |
1136 | 1040 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
|
1041 { |
521 | 1042 if (s->proxy->upstream.connection) { |
1136 | 1043 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
1044 "close mail proxy connection: %d", | |
521 | 1045 s->proxy->upstream.connection->fd); |
1046 | |
1047 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
|
1048 } |
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
1049 |
1136 | 1050 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
|
1051 } |
521 | 1052 |
1053 | |
1054 static void * | |
1136 | 1055 ngx_mail_proxy_create_conf(ngx_conf_t *cf) |
577 | 1056 { |
1136 | 1057 ngx_mail_proxy_conf_t *pcf; |
577 | 1058 |
1136 | 1059 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_proxy_conf_t)); |
521 | 1060 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
|
1061 return NULL; |
521 | 1062 } |
1063 | |
1064 pcf->enable = NGX_CONF_UNSET; | |
857 | 1065 pcf->pass_error_message = NGX_CONF_UNSET; |
1136 | 1066 pcf->xclient = NGX_CONF_UNSET; |
539 | 1067 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
1068 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
521 | 1069 |
1070 return pcf; | |
1071 } | |
1072 | |
1073 | |
1074 static char * | |
1136 | 1075 ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
521 | 1076 { |
1136 | 1077 ngx_mail_proxy_conf_t *prev = parent; |
1078 ngx_mail_proxy_conf_t *conf = child; | |
521 | 1079 |
539 | 1080 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
857 | 1081 ngx_conf_merge_value(conf->pass_error_message, prev->pass_error_message, 0); |
1136 | 1082 ngx_conf_merge_value(conf->xclient, prev->xclient, 1); |
539 | 1083 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, |
1084 (size_t) ngx_pagesize); | |
1085 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
521 | 1086 |
1087 return NGX_CONF_OK; | |
1088 } |