Mercurial > hg > nginx
annotate src/mail/ngx_mail_proxy_module.c @ 1166:bde5e4134759
style fix: remove tabs
| author | Igor Sysoev <igor@sysoev.ru> |
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| date | Wed, 18 Apr 2007 15:21:28 +0000 |
| parents | 68f30ab68bb7 |
| children | be2e13691c60 |
| 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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79 |
| 1136 | 80 static ngx_mail_module_t ngx_mail_proxy_module_ctx = { |
| 521 | 81 NULL, /* create main configuration */ |
| 82 NULL, /* init main configuration */ | |
| 83 | |
| 1136 | 84 ngx_mail_proxy_create_conf, /* create server configuration */ |
| 85 ngx_mail_proxy_merge_conf /* merge server configuration */ | |
| 521 | 86 }; |
| 87 | |
| 88 | |
| 1136 | 89 ngx_module_t ngx_mail_proxy_module = { |
| 521 | 90 NGX_MODULE_V1, |
| 1136 | 91 &ngx_mail_proxy_module_ctx, /* module context */ |
| 92 ngx_mail_proxy_commands, /* module directives */ | |
| 93 NGX_MAIL_MODULE, /* module type */ | |
| 541 | 94 NULL, /* init master */ |
| 521 | 95 NULL, /* init module */ |
| 541 | 96 NULL, /* init process */ |
| 97 NULL, /* init thread */ | |
| 98 NULL, /* exit thread */ | |
| 99 NULL, /* exit process */ | |
| 100 NULL, /* exit master */ | |
| 101 NGX_MODULE_V1_PADDING | |
| 521 | 102 }; |
| 103 | |
| 104 | |
| 1136 | 105 static u_char smtp_ok[] = "235 2.0.0 OK" CRLF; |
| 106 | |
| 107 | |
| 521 | 108 void |
| 1136 | 109 ngx_mail_proxy_init(ngx_mail_session_t *s, ngx_peer_addr_t *peer) |
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110 { |
| 587 | 111 int keepalive; |
| 527 | 112 ngx_int_t rc; |
| 1136 | 113 ngx_mail_proxy_ctx_t *p; |
| 114 ngx_mail_proxy_conf_t *pcf; | |
| 115 ngx_mail_core_srv_conf_t *cscf; | |
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116 |
| 587 | 117 s->connection->log->action = "connecting to upstream"; |
| 118 | |
| 1136 | 119 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 587 | 120 |
| 121 if (cscf->so_keepalive) { | |
| 122 keepalive = 1; | |
| 123 | |
| 124 if (setsockopt(s->connection->fd, SOL_SOCKET, SO_KEEPALIVE, | |
| 125 (const void *) &keepalive, sizeof(int)) | |
| 126 == -1) | |
| 127 { | |
| 128 ngx_log_error(NGX_LOG_ALERT, s->connection->log, ngx_socket_errno, | |
| 129 "setsockopt(SO_KEEPALIVE) failed"); | |
| 130 } | |
| 131 } | |
| 132 | |
| 1136 | 133 p = ngx_pcalloc(s->connection->pool, sizeof(ngx_mail_proxy_ctx_t)); |
| 501 | 134 if (p == NULL) { |
| 1136 | 135 ngx_mail_session_internal_server_error(s); |
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136 return; |
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137 } |
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138 |
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139 s->proxy = p; |
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140 |
| 884 | 141 p->upstream.sockaddr = peer->sockaddr; |
| 142 p->upstream.socklen = peer->socklen; | |
| 143 p->upstream.name = &peer->name; | |
| 144 p->upstream.get = ngx_event_get_peer; | |
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145 p->upstream.log = s->connection->log; |
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146 p->upstream.log_error = NGX_ERROR_ERR; |
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147 |
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148 rc = ngx_event_connect_peer(&p->upstream); |
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149 |
| 543 | 150 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) { |
| 1136 | 151 ngx_mail_proxy_internal_server_error(s); |
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152 return; |
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153 } |
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154 |
| 527 | 155 ngx_add_timer(p->upstream.connection->read, cscf->timeout); |
| 156 | |
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157 p->upstream.connection->data = s; |
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158 p->upstream.connection->pool = s->connection->pool; |
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159 |
| 1136 | 160 s->connection->read->handler = ngx_mail_proxy_block_read; |
| 161 p->upstream.connection->write->handler = ngx_mail_proxy_dummy_handler; | |
| 162 | |
| 163 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
| 164 | |
| 165 s->proxy->buffer = ngx_create_temp_buf(s->connection->pool, | |
| 166 pcf->buffer_size); | |
| 167 if (s->proxy->buffer == NULL) { | |
| 168 ngx_mail_proxy_internal_server_error(s); | |
| 169 return; | |
| 170 } | |
| 171 | |
| 172 switch (s->protocol) { | |
| 527 | 173 |
| 1136 | 174 case NGX_MAIL_POP3_PROTOCOL: |
| 175 p->upstream.connection->read->handler = ngx_mail_proxy_pop3_handler; | |
| 176 s->mail_state = ngx_pop3_start; | |
| 177 break; | |
| 527 | 178 |
| 1136 | 179 case NGX_MAIL_IMAP_PROTOCOL: |
| 180 p->upstream.connection->read->handler = ngx_mail_proxy_imap_handler; | |
| 181 s->mail_state = ngx_imap_start; | |
| 182 break; | |
| 183 | |
| 184 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
| 185 p->upstream.connection->read->handler = ngx_mail_proxy_smtp_handler; | |
| 186 s->mail_state = ngx_smtp_start; | |
| 187 break; | |
| 527 | 188 } |
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189 } |
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190 |
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191 |
| 521 | 192 static void |
| 1136 | 193 ngx_mail_proxy_block_read(ngx_event_t *rev) |
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194 { |
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195 ngx_connection_t *c; |
| 1136 | 196 ngx_mail_session_t *s; |
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197 |
| 1136 | 198 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy block read"); |
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199 |
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200 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) { |
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201 c = rev->data; |
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202 s = c->data; |
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203 |
| 1136 | 204 ngx_mail_proxy_close_session(s); |
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205 } |
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206 } |
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207 |
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208 |
| 521 | 209 static void |
| 1136 | 210 ngx_mail_proxy_pop3_handler(ngx_event_t *rev) |
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211 { |
| 539 | 212 u_char *p; |
| 213 ngx_int_t rc; | |
| 214 ngx_str_t line; | |
| 215 ngx_connection_t *c; | |
| 1136 | 216 ngx_mail_session_t *s; |
| 217 ngx_mail_proxy_conf_t *pcf; | |
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218 |
| 1136 | 219 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
| 220 "mail proxy pop3 auth handler"); | |
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221 |
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222 c = rev->data; |
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223 s = c->data; |
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224 |
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225 if (rev->timedout) { |
| 527 | 226 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, |
| 227 "upstream timed out"); | |
| 577 | 228 c->timedout = 1; |
| 1136 | 229 ngx_mail_proxy_internal_server_error(s); |
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230 return; |
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231 } |
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232 |
| 1136 | 233 rc = ngx_mail_proxy_read_response(s, 0); |
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234 |
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235 if (rc == NGX_AGAIN) { |
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236 return; |
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237 } |
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238 |
| 571 | 239 if (rc == NGX_ERROR) { |
| 1136 | 240 ngx_mail_proxy_upstream_error(s); |
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241 return; |
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242 } |
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243 |
| 1136 | 244 switch (s->mail_state) { |
| 587 | 245 |
| 1136 | 246 case ngx_pop3_start: |
| 247 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); | |
|
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248 |
| 587 | 249 s->connection->log->action = "sending user name to upstream"; |
| 250 | |
| 1136 | 251 line.len = sizeof("USER ") - 1 + s->login.len + 2; |
| 527 | 252 line.data = ngx_palloc(c->pool, line.len); |
| 253 if (line.data == NULL) { | |
| 1136 | 254 ngx_mail_proxy_internal_server_error(s); |
| 527 | 255 return; |
| 256 } | |
| 257 | |
| 1136 | 258 p = ngx_cpymem(line.data, "USER ", sizeof("USER ") - 1); |
| 259 p = ngx_cpymem(p, s->login.data, s->login.len); | |
| 260 *p++ = CR; *p = LF; | |
| 527 | 261 |
| 1136 | 262 s->mail_state = ngx_pop3_user; |
| 527 | 263 break; |
| 264 | |
| 1136 | 265 case ngx_pop3_user: |
| 266 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send pass"); | |
| 527 | 267 |
| 587 | 268 s->connection->log->action = "sending password to upstream"; |
| 269 | |
| 1136 | 270 line.len = sizeof("PASS ") - 1 + s->passwd.len + 2; |
| 501 | 271 line.data = ngx_palloc(c->pool, line.len); |
| 272 if (line.data == NULL) { | |
| 1136 | 273 ngx_mail_proxy_internal_server_error(s); |
| 527 | 274 return; |
| 275 } | |
| 276 | |
| 1136 | 277 p = ngx_cpymem(line.data, "PASS ", sizeof("PASS ") - 1); |
| 278 p = ngx_cpymem(p, s->passwd.data, s->passwd.len); | |
| 527 | 279 *p++ = CR; *p = LF; |
| 280 | |
| 1136 | 281 s->mail_state = ngx_pop3_passwd; |
| 527 | 282 break; |
| 283 | |
| 1136 | 284 case ngx_pop3_passwd: |
| 285 s->connection->read->handler = ngx_mail_proxy_handler; | |
| 286 s->connection->write->handler = ngx_mail_proxy_handler; | |
| 287 rev->handler = ngx_mail_proxy_handler; | |
| 288 c->write->handler = ngx_mail_proxy_handler; | |
| 663 | 289 |
| 1136 | 290 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
| 663 | 291 ngx_add_timer(s->connection->read, pcf->timeout); |
| 292 ngx_del_timer(c->read); | |
| 293 | |
| 294 c->log->action = NULL; | |
| 295 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 296 | |
| 1136 | 297 ngx_mail_proxy_handler(s->connection->write); |
| 663 | 298 |
| 299 return; | |
| 300 | |
| 527 | 301 default: |
| 302 #if (NGX_SUPPRESS_WARN) | |
| 303 line.len = 0; | |
| 304 line.data = NULL; | |
| 305 #endif | |
| 306 break; | |
| 307 } | |
| 308 | |
| 539 | 309 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
| 527 | 310 /* |
| 311 * we treat the incomplete sending as NGX_ERROR | |
| 312 * because it is very strange here | |
| 313 */ | |
| 1136 | 314 ngx_mail_proxy_internal_server_error(s); |
| 527 | 315 return; |
| 316 } | |
| 317 | |
| 318 s->proxy->buffer->pos = s->proxy->buffer->start; | |
| 319 s->proxy->buffer->last = s->proxy->buffer->start; | |
| 320 } | |
| 321 | |
| 322 | |
| 323 static void | |
| 1136 | 324 ngx_mail_proxy_imap_handler(ngx_event_t *rev) |
| 527 | 325 { |
| 539 | 326 u_char *p; |
| 327 ngx_int_t rc; | |
| 328 ngx_str_t line; | |
| 329 ngx_connection_t *c; | |
| 1136 | 330 ngx_mail_session_t *s; |
| 331 ngx_mail_proxy_conf_t *pcf; | |
| 527 | 332 |
| 1136 | 333 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, |
| 334 "mail proxy imap auth handler"); | |
| 527 | 335 |
| 336 c = rev->data; | |
| 337 s = c->data; | |
| 338 | |
| 339 if (rev->timedout) { | |
| 340 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
| 341 "upstream timed out"); | |
| 577 | 342 c->timedout = 1; |
| 1136 | 343 ngx_mail_proxy_internal_server_error(s); |
| 527 | 344 return; |
| 345 } | |
| 346 | |
| 1136 | 347 rc = ngx_mail_proxy_read_response(s, s->mail_state); |
| 527 | 348 |
| 349 if (rc == NGX_AGAIN) { | |
| 350 return; | |
| 351 } | |
| 352 | |
| 571 | 353 if (rc == NGX_ERROR) { |
| 1136 | 354 ngx_mail_proxy_upstream_error(s); |
| 527 | 355 return; |
| 356 } | |
| 357 | |
| 1136 | 358 switch (s->mail_state) { |
| 527 | 359 |
| 1136 | 360 case ngx_imap_start: |
| 361 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
| 362 "mail proxy send login"); | |
| 527 | 363 |
| 1136 | 364 s->connection->log->action = "sending LOGIN command to upstream"; |
| 587 | 365 |
| 1136 | 366 line.len = s->tag.len + sizeof("LOGIN ") - 1 |
| 367 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
| 527 | 368 line.data = ngx_palloc(c->pool, line.len); |
| 369 if (line.data == NULL) { | |
| 1136 | 370 ngx_mail_proxy_internal_server_error(s); |
|
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371 return; |
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372 } |
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373 |
| 1136 | 374 line.len = ngx_sprintf(line.data, "%VLOGIN {%uz}" CRLF, |
| 375 &s->tag, s->login.len) | |
| 376 - line.data; | |
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377 |
| 1136 | 378 s->mail_state = ngx_imap_login; |
| 527 | 379 break; |
| 380 | |
| 1136 | 381 case ngx_imap_login: |
| 382 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send user"); | |
| 383 | |
| 384 s->connection->log->action = "sending user name to upstream"; | |
| 385 | |
| 386 line.len = s->login.len + 1 + 1 + NGX_SIZE_T_LEN + 1 + 2; | |
| 387 line.data = ngx_palloc(c->pool, line.len); | |
| 388 if (line.data == NULL) { | |
| 389 ngx_mail_proxy_internal_server_error(s); | |
| 390 return; | |
| 391 } | |
| 392 | |
| 393 line.len = ngx_sprintf(line.data, "%V {%uz}" CRLF, | |
| 394 &s->login, s->passwd.len) | |
| 395 - line.data; | |
| 396 | |
| 397 s->mail_state = ngx_imap_user; | |
| 398 break; | |
| 399 | |
| 400 case ngx_imap_user: | |
| 401 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
| 402 "mail proxy send passwd"); | |
| 527 | 403 |
| 587 | 404 s->connection->log->action = "sending password to upstream"; |
| 405 | |
| 1136 | 406 line.len = s->passwd.len + 2; |
| 527 | 407 line.data = ngx_palloc(c->pool, line.len); |
| 408 if (line.data == NULL) { | |
| 1136 | 409 ngx_mail_proxy_internal_server_error(s); |
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410 return; |
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419
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411 } |
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412 |
| 1136 | 413 p = ngx_cpymem(line.data, s->passwd.data, s->passwd.len); |
| 527 | 414 *p++ = CR; *p = LF; |
|
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415 |
| 1136 | 416 s->mail_state = ngx_imap_passwd; |
| 527 | 417 break; |
|
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418 |
| 1136 | 419 case ngx_imap_passwd: |
| 420 s->connection->read->handler = ngx_mail_proxy_handler; | |
| 421 s->connection->write->handler = ngx_mail_proxy_handler; | |
| 422 rev->handler = ngx_mail_proxy_handler; | |
| 423 c->write->handler = ngx_mail_proxy_handler; | |
| 663 | 424 |
| 1136 | 425 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
| 663 | 426 ngx_add_timer(s->connection->read, pcf->timeout); |
| 427 ngx_del_timer(c->read); | |
| 428 | |
| 429 c->log->action = NULL; | |
| 430 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 431 | |
| 1136 | 432 ngx_mail_proxy_handler(s->connection->write); |
| 663 | 433 |
| 434 return; | |
| 435 | |
| 527 | 436 default: |
| 437 #if (NGX_SUPPRESS_WARN) | |
| 438 line.len = 0; | |
| 439 line.data = NULL; | |
| 440 #endif | |
| 441 break; | |
|
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442 } |
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443 |
| 539 | 444 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { |
|
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445 /* |
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446 * we treat the incomplete sending as NGX_ERROR |
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447 * because it is very strange here |
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448 */ |
| 1136 | 449 ngx_mail_proxy_internal_server_error(s); |
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450 return; |
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451 } |
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452 |
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453 s->proxy->buffer->pos = s->proxy->buffer->start; |
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454 s->proxy->buffer->last = s->proxy->buffer->start; |
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455 } |
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456 |
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457 |
| 521 | 458 static void |
| 1136 | 459 ngx_mail_proxy_smtp_handler(ngx_event_t *rev) |
| 460 { | |
| 461 u_char *p; | |
| 462 ngx_int_t rc; | |
| 463 ngx_str_t line; | |
| 464 ngx_connection_t *c; | |
| 465 ngx_mail_session_t *s; | |
| 466 ngx_mail_proxy_conf_t *pcf; | |
| 467 ngx_mail_core_srv_conf_t *cscf; | |
| 468 | |
| 469 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
| 470 "mail proxy smtp auth handler"); | |
| 471 | |
| 472 c = rev->data; | |
| 473 s = c->data; | |
| 474 | |
| 475 if (rev->timedout) { | |
| 476 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, | |
| 477 "upstream timed out"); | |
| 478 c->timedout = 1; | |
| 479 ngx_mail_proxy_internal_server_error(s); | |
| 480 return; | |
| 481 } | |
| 482 | |
| 483 rc = ngx_mail_proxy_read_response(s, s->mail_state); | |
| 484 | |
| 485 if (rc == NGX_AGAIN) { | |
| 486 return; | |
| 487 } | |
| 488 | |
| 489 if (rc == NGX_ERROR) { | |
| 490 ngx_mail_proxy_upstream_error(s); | |
| 491 return; | |
| 492 } | |
| 493 | |
| 494 switch (s->mail_state) { | |
| 495 | |
| 496 case ngx_smtp_start: | |
| 497 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail proxy send ehlo"); | |
| 498 | |
| 499 s->connection->log->action = "sending HELO/EHLO to upstream"; | |
| 500 | |
| 501 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 502 | |
| 503 line.len = sizeof("HELO ") - 1 + cscf->server_name.len + 2; | |
| 504 line.data = ngx_palloc(c->pool, line.len); | |
| 505 if (line.data == NULL) { | |
| 506 ngx_mail_proxy_internal_server_error(s); | |
| 507 return; | |
| 508 } | |
| 509 | |
| 510 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
| 511 | |
| 512 p = ngx_cpymem(line.data, | |
| 513 ((s->esmtp || pcf->xclient) ? "EHLO " : "HELO "), | |
| 514 sizeof("HELO ") - 1); | |
| 515 | |
| 516 p = ngx_cpymem(p, cscf->server_name.data, cscf->server_name.len); | |
| 517 *p++ = CR; *p = LF; | |
| 518 | |
| 519 s->mail_state = pcf->xclient ? ngx_smtp_helo: ngx_smtp_noxclient; | |
| 520 | |
| 521 break; | |
| 522 | |
| 523 case ngx_smtp_helo: | |
| 524 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, | |
| 525 "mail proxy send xclient"); | |
| 526 | |
| 527 s->connection->log->action = "sending XCLIENT to upstream"; | |
| 528 | |
| 529 line.len = sizeof("XCLIENT PROTO=SMTP HELO= ADDR= LOGIN= " | |
| 530 "NAME=[UNAVAILABLE]" CRLF) - 1 | |
| 531 + s->esmtp + s->smtp_helo.len | |
| 532 + s->connection->addr_text.len + s->login.len; | |
| 533 | |
| 534 line.data = ngx_palloc(c->pool, line.len); | |
| 535 if (line.data == NULL) { | |
| 536 ngx_mail_proxy_internal_server_error(s); | |
| 537 return; | |
| 538 } | |
| 539 | |
| 540 if (s->smtp_helo.len) { | |
| 541 line.len = ngx_sprintf(line.data, | |
| 542 "XCLIENT PROTO=%sSMTP HELO=%V ADDR=%V LOGIN=%V " | |
| 543 "NAME=[UNAVAILABLE]" CRLF, | |
| 544 (s->esmtp ? "E" : ""), &s->smtp_helo, | |
| 545 &s->connection->addr_text, &s->login) | |
| 546 - line.data; | |
| 547 } else { | |
| 548 line.len = ngx_sprintf(line.data, | |
| 549 "XCLIENT PROTO=SMTP ADDR=%V LOGIN=%V " | |
| 550 "NAME=[UNAVAILABLE]" CRLF, | |
| 551 &s->connection->addr_text, &s->login) | |
| 552 - line.data; | |
| 553 } | |
| 554 | |
| 555 s->mail_state = ngx_smtp_xclient; | |
| 556 break; | |
| 557 | |
| 558 case ngx_smtp_noxclient: | |
| 559 case ngx_smtp_xclient: | |
| 560 | |
| 561 ngx_memcpy(s->proxy->buffer->start, smtp_ok, sizeof(smtp_ok) - 1); | |
| 562 | |
| 563 s->proxy->buffer->pos = s->proxy->buffer->start; | |
| 564 s->proxy->buffer->last = s->proxy->buffer->start + sizeof(smtp_ok) - 1; | |
| 565 | |
| 566 s->connection->read->handler = ngx_mail_proxy_handler; | |
| 567 s->connection->write->handler = ngx_mail_proxy_handler; | |
| 568 rev->handler = ngx_mail_proxy_handler; | |
| 569 c->write->handler = ngx_mail_proxy_handler; | |
| 570 | |
| 571 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); | |
| 572 ngx_add_timer(s->connection->read, pcf->timeout); | |
| 573 ngx_del_timer(c->read); | |
| 574 | |
| 575 c->log->action = NULL; | |
| 576 ngx_log_error(NGX_LOG_INFO, c->log, 0, "client logged in"); | |
| 577 | |
| 578 ngx_mail_proxy_handler(s->connection->write); | |
| 579 | |
| 580 return; | |
| 581 | |
| 582 default: | |
| 583 #if (NGX_SUPPRESS_WARN) | |
| 584 line.len = 0; | |
| 585 line.data = NULL; | |
| 586 #endif | |
| 587 break; | |
| 588 } | |
| 589 | |
| 590 if (c->send(c, line.data, line.len) < (ssize_t) line.len) { | |
| 591 /* | |
| 592 * we treat the incomplete sending as NGX_ERROR | |
| 593 * because it is very strange here | |
| 594 */ | |
| 595 ngx_mail_proxy_internal_server_error(s); | |
| 596 return; | |
| 597 } | |
| 598 | |
| 599 s->proxy->buffer->pos = s->proxy->buffer->start; | |
| 600 s->proxy->buffer->last = s->proxy->buffer->start; | |
| 601 } | |
| 602 | |
| 603 | |
| 604 static void | |
| 605 ngx_mail_proxy_dummy_handler(ngx_event_t *wev) | |
|
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606 { |
| 583 | 607 ngx_connection_t *c; |
| 1136 | 608 ngx_mail_session_t *s; |
| 583 | 609 |
| 1136 | 610 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0, "mail proxy dummy handler"); |
| 583 | 611 |
| 612 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) { | |
| 613 c = wev->data; | |
| 614 s = c->data; | |
| 615 | |
| 1136 | 616 ngx_mail_proxy_close_session(s); |
| 583 | 617 } |
|
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618 } |
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619 |
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620 |
| 521 | 621 static ngx_int_t |
| 1136 | 622 ngx_mail_proxy_read_response(ngx_mail_session_t *s, ngx_uint_t state) |
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623 { |
| 857 | 624 u_char *p; |
| 625 ssize_t n; | |
| 626 ngx_buf_t *b; | |
| 1136 | 627 ngx_mail_proxy_conf_t *pcf; |
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628 |
| 587 | 629 s->connection->log->action = "reading response from upstream"; |
| 630 | |
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631 b = s->proxy->buffer; |
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47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
632 |
| 539 | 633 n = s->proxy->upstream.connection->recv(s->proxy->upstream.connection, |
| 634 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
|
635 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
636 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
|
637 return NGX_ERROR; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
638 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
639 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
640 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
|
641 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
642 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
643 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
644 b->last += n; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
645 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
646 if (b->last - b->pos < 5) { |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
647 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
648 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
649 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
650 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
|
651 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
|
652 *(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
|
653 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
|
654 "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
|
655 b->pos); |
| 571 | 656 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
|
657 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
658 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
659 return NGX_AGAIN; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
660 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
661 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
662 p = b->pos; |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
663 |
| 1136 | 664 switch (s->protocol) { |
| 665 | |
| 666 case NGX_MAIL_POP3_PROTOCOL: | |
| 527 | 667 if (p[0] == '+' && p[1] == 'O' && p[2] == 'K') { |
| 668 return NGX_OK; | |
| 669 } | |
| 1136 | 670 break; |
| 527 | 671 |
| 1136 | 672 case NGX_MAIL_IMAP_PROTOCOL: |
| 663 | 673 switch (state) { |
| 674 | |
| 675 case ngx_imap_start: | |
| 527 | 676 if (p[0] == '*' && p[1] == ' ' && p[2] == 'O' && p[3] == 'K') { |
| 677 return NGX_OK; | |
| 678 } | |
| 663 | 679 break; |
| 527 | 680 |
| 663 | 681 case ngx_imap_login: |
| 682 case ngx_imap_user: | |
| 529 | 683 if (p[0] == '+') { |
| 527 | 684 return NGX_OK; |
| 685 } | |
| 663 | 686 break; |
| 687 | |
| 688 case ngx_imap_passwd: | |
| 689 if (ngx_strncmp(p, s->tag.data, s->tag.len) == 0) { | |
| 690 p += s->tag.len; | |
| 691 if (p[0] == 'O' && p[1] == 'K') { | |
| 692 return NGX_OK; | |
| 693 } | |
| 694 } | |
| 695 break; | |
| 527 | 696 } |
| 1136 | 697 |
| 698 break; | |
| 699 | |
| 700 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
| 701 switch (state) { | |
| 702 | |
| 703 case ngx_smtp_helo: | |
| 704 case ngx_smtp_noxclient: | |
| 1166 | 705 if (p[0] == '2' && p[1] == '5' && p[2] == '0') { |
| 706 return NGX_OK; | |
| 707 } | |
| 708 break; | |
| 1136 | 709 |
| 710 case ngx_smtp_start: | |
| 711 case ngx_smtp_xclient: | |
| 1166 | 712 if (p[0] == '2' && p[1] == '2' && p[2] == '0') { |
| 713 return NGX_OK; | |
| 714 } | |
| 715 break; | |
| 1136 | 716 } |
| 717 | |
| 1166 | 718 break; |
|
419
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 |
| 1136 | 721 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
| 857 | 722 |
| 723 if (pcf->pass_error_message == 0) { | |
| 724 *(b->last - 2) = '\0'; | |
| 725 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0, | |
| 726 "upstream sent invalid response: \"%s\"", p); | |
| 727 return NGX_ERROR; | |
| 728 } | |
| 729 | |
| 730 s->out.len = b->last - p - 2; | |
| 731 s->out.data = p; | |
| 732 | |
| 733 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
| 734 "upstream sent invalid response: \"%V\"", &s->out); | |
| 735 | |
| 736 s->out.len = b->last - b->pos; | |
| 737 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
|
738 |
| 571 | 739 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
|
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 |
| 521 | 743 static void |
| 1136 | 744 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
|
745 { |
| 583 | 746 char *action, *recv_action, *send_action; |
| 539 | 747 size_t size; |
| 748 ssize_t n; | |
| 749 ngx_buf_t *b; | |
| 583 | 750 ngx_uint_t do_write; |
| 539 | 751 ngx_connection_t *c, *src, *dst; |
| 1136 | 752 ngx_mail_session_t *s; |
| 753 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
|
754 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
755 c = ev->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
756 s = c->data; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
757 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
758 if (ev->timedout) { |
| 583 | 759 c->log->action = "proxying"; |
| 760 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
761 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
|
762 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
|
763 "client timed out"); |
| 577 | 764 c->timedout = 1; |
| 765 | |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
766 } else { |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
767 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
|
768 "upstream timed out"); |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
769 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
770 |
| 1136 | 771 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
|
772 return; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
773 } |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
774 |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
775 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
|
776 if (ev->write) { |
| 583 | 777 recv_action = "proxying and reading from upstream"; |
| 778 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
|
779 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
|
780 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
781 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
|
782 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
783 } else { |
| 583 | 784 recv_action = "proxying and reading from client"; |
| 785 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
|
786 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
787 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
|
788 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
789 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
790 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
791 } else { |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
792 if (ev->write) { |
| 589 | 793 recv_action = "proxying and reading from client"; |
| 794 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
|
795 src = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
796 dst = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
797 b = s->buffer; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
798 |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
799 } else { |
| 589 | 800 recv_action = "proxying and reading from upstream"; |
| 801 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
|
802 src = c; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
803 dst = s->connection; |
|
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
804 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
|
805 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
806 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
807 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
808 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
|
809 |
| 1136 | 810 ngx_log_debug3(NGX_LOG_DEBUG_MAIL, ev->log, 0, |
| 811 "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
|
812 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
|
813 |
| 583 | 814 for ( ;; ) { |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
815 |
| 583 | 816 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
|
817 |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
818 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
|
819 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
820 if (size && dst->write->ready) { |
| 583 | 821 c->log->action = send_action; |
| 822 | |
| 539 | 823 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
|
824 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
825 if (n == NGX_ERROR) { |
| 1136 | 826 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
|
827 return; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
828 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
829 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
830 if (n > 0) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
831 b->pos += n; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
832 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
833 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
|
834 b->pos = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
835 b->last = b->start; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
836 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
837 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
838 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
839 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
840 |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
841 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
|
842 |
|
423
fda5987b188d
nginx-0.0.10-2004-09-13-20:18:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
422
diff
changeset
|
843 if (size && src->read->ready) { |
| 583 | 844 c->log->action = recv_action; |
| 845 | |
| 539 | 846 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
|
847 |
| 583 | 848 if (n == NGX_AGAIN || n == 0) { |
| 849 break; | |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
850 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
851 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
852 if (n > 0) { |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
853 do_write = 1; |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
854 b->last += n; |
| 583 | 855 |
| 856 continue; | |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
857 } |
|
419
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
858 |
| 583 | 859 if (n == NGX_ERROR) { |
| 860 src->read->eof = 1; | |
| 539 | 861 } |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
862 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
863 |
| 583 | 864 break; |
| 865 } | |
| 866 | |
| 867 c->log->action = "proxying"; | |
| 868 | |
| 869 if ((s->connection->read->eof || s->proxy->upstream.connection->read->eof) | |
| 870 && s->buffer->pos == s->buffer->last | |
| 871 && s->proxy->buffer->pos == s->proxy->buffer->last) | |
| 872 { | |
| 873 action = c->log->action; | |
| 874 c->log->action = NULL; | |
| 875 ngx_log_error(NGX_LOG_INFO, c->log, 0, "proxied session done"); | |
| 876 c->log->action = action; | |
| 877 | |
| 1136 | 878 ngx_mail_proxy_close_session(s); |
| 583 | 879 return; |
| 880 } | |
| 881 | |
| 882 if (ngx_handle_write_event(dst->write, 0) == NGX_ERROR) { | |
| 1136 | 883 ngx_mail_proxy_close_session(s); |
| 583 | 884 return; |
| 885 } | |
| 886 | |
| 887 if (ngx_handle_read_event(dst->read, 0) == NGX_ERROR) { | |
| 1136 | 888 ngx_mail_proxy_close_session(s); |
| 583 | 889 return; |
| 890 } | |
| 891 | |
| 892 if (ngx_handle_write_event(src->write, 0) == NGX_ERROR) { | |
| 1136 | 893 ngx_mail_proxy_close_session(s); |
| 583 | 894 return; |
| 895 } | |
| 896 | |
| 897 if (ngx_handle_read_event(src->read, 0) == NGX_ERROR) { | |
| 1136 | 898 ngx_mail_proxy_close_session(s); |
| 583 | 899 return; |
| 900 } | |
| 901 | |
| 902 if (c == s->connection) { | |
| 1136 | 903 pcf = ngx_mail_get_module_srv_conf(s, ngx_mail_proxy_module); |
| 583 | 904 ngx_add_timer(c->read, pcf->timeout); |
| 905 } | |
|
418
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
906 } |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
907 |
|
cf072d26d6d6
nginx-0.0.10-2004-09-08-09:18:51 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
908 |
| 521 | 909 static void |
| 1136 | 910 ngx_mail_proxy_upstream_error(ngx_mail_session_t *s) |
| 857 | 911 { |
| 912 if (s->proxy->upstream.connection) { | |
| 1136 | 913 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
| 914 "close mail proxy connection: %d", | |
| 857 | 915 s->proxy->upstream.connection->fd); |
| 916 | |
| 917 ngx_close_connection(s->proxy->upstream.connection); | |
| 918 } | |
| 919 | |
| 920 if (s->out.len == 0) { | |
| 1136 | 921 ngx_mail_session_internal_server_error(s); |
| 857 | 922 return; |
| 923 } | |
| 924 | |
| 925 s->quit = 1; | |
| 1136 | 926 ngx_mail_send(s->connection->write); |
| 857 | 927 } |
| 928 | |
| 929 | |
| 930 static void | |
| 1136 | 931 ngx_mail_proxy_internal_server_error(ngx_mail_session_t *s) |
| 527 | 932 { |
| 933 if (s->proxy->upstream.connection) { | |
| 1136 | 934 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
| 935 "close mail proxy connection: %d", | |
| 527 | 936 s->proxy->upstream.connection->fd); |
| 937 | |
| 938 ngx_close_connection(s->proxy->upstream.connection); | |
| 939 } | |
| 940 | |
| 1136 | 941 ngx_mail_session_internal_server_error(s); |
| 527 | 942 } |
| 943 | |
| 944 | |
| 945 static void | |
| 1136 | 946 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
|
947 { |
| 521 | 948 if (s->proxy->upstream.connection) { |
| 1136 | 949 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, |
| 950 "close mail proxy connection: %d", | |
| 521 | 951 s->proxy->upstream.connection->fd); |
| 952 | |
| 953 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
|
954 } |
|
47709bff4468
nginx-0.0.10-2004-09-09-19:40:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
418
diff
changeset
|
955 |
| 1136 | 956 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
|
957 } |
| 521 | 958 |
| 959 | |
| 960 static void * | |
| 1136 | 961 ngx_mail_proxy_create_conf(ngx_conf_t *cf) |
| 577 | 962 { |
| 1136 | 963 ngx_mail_proxy_conf_t *pcf; |
| 577 | 964 |
| 1136 | 965 pcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_proxy_conf_t)); |
| 521 | 966 if (pcf == NULL) { |
| 967 return NGX_CONF_ERROR; | |
| 968 } | |
| 969 | |
| 970 pcf->enable = NGX_CONF_UNSET; | |
| 857 | 971 pcf->pass_error_message = NGX_CONF_UNSET; |
| 1136 | 972 pcf->xclient = NGX_CONF_UNSET; |
| 539 | 973 pcf->buffer_size = NGX_CONF_UNSET_SIZE; |
| 974 pcf->timeout = NGX_CONF_UNSET_MSEC; | |
| 521 | 975 |
| 976 return pcf; | |
| 977 } | |
| 978 | |
| 979 | |
| 980 static char * | |
| 1136 | 981 ngx_mail_proxy_merge_conf(ngx_conf_t *cf, void *parent, void *child) |
| 521 | 982 { |
| 1136 | 983 ngx_mail_proxy_conf_t *prev = parent; |
| 984 ngx_mail_proxy_conf_t *conf = child; | |
| 521 | 985 |
| 539 | 986 ngx_conf_merge_value(conf->enable, prev->enable, 0); |
| 857 | 987 ngx_conf_merge_value(conf->pass_error_message, prev->pass_error_message, 0); |
| 1136 | 988 ngx_conf_merge_value(conf->xclient, prev->xclient, 1); |
| 539 | 989 ngx_conf_merge_size_value(conf->buffer_size, prev->buffer_size, |
| 990 (size_t) ngx_pagesize); | |
| 991 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 24 * 60 * 60000); | |
| 521 | 992 |
| 993 return NGX_CONF_OK; | |
| 994 } |