Mercurial > hg > nginx-mail
annotate src/mail/ngx_mail_handler.c @ 481:abbf48179d76
Mail: minor changes to auth login with username support.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 09 Feb 2009 00:53:34 +0300 |
| parents | 2580fe1c5a9a |
| children | c78a94ba4ae1 |
| rev | line source |
|---|---|
| 290 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_event.h> | |
| 10 #include <ngx_mail.h> | |
| 11 | |
| 12 | |
| 13 static void ngx_mail_init_session(ngx_connection_t *c); | |
| 14 | |
| 15 #if (NGX_MAIL_SSL) | |
| 16 static void ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c); | |
| 17 static void ngx_mail_ssl_handshake_handler(ngx_connection_t *c); | |
| 18 #endif | |
| 19 | |
| 20 | |
| 21 void | |
| 22 ngx_mail_init_connection(ngx_connection_t *c) | |
| 23 { | |
| 24 in_addr_t in_addr; | |
| 25 socklen_t len; | |
| 26 ngx_uint_t i; | |
| 27 struct sockaddr_in sin; | |
| 28 ngx_mail_log_ctx_t *ctx; | |
| 29 ngx_mail_in_port_t *imip; | |
| 30 ngx_mail_in_addr_t *imia; | |
| 31 ngx_mail_session_t *s; | |
| 32 | |
| 33 /* find the server configuration for the address:port */ | |
| 34 | |
| 35 /* AF_INET only */ | |
| 36 | |
| 37 imip = c->listening->servers; | |
| 38 imia = imip->addrs; | |
| 39 | |
| 40 i = 0; | |
| 41 | |
| 42 if (imip->naddrs > 1) { | |
| 43 | |
| 44 /* | |
| 45 * There are several addresses on this port and one of them | |
| 46 * is the "*:port" wildcard so getsockname() is needed to determine | |
| 47 * the server address. | |
| 48 * | |
| 49 * AcceptEx() already gave this address. | |
| 50 */ | |
| 51 | |
| 52 #if (NGX_WIN32) | |
| 53 if (c->local_sockaddr) { | |
| 54 in_addr = | |
| 55 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr; | |
| 56 | |
| 57 } else | |
| 58 #endif | |
| 59 { | |
| 60 len = sizeof(struct sockaddr_in); | |
| 61 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) { | |
| 62 ngx_connection_error(c, ngx_socket_errno, | |
| 63 "getsockname() failed"); | |
| 64 ngx_mail_close_connection(c); | |
| 65 return; | |
| 66 } | |
| 67 | |
| 68 in_addr = sin.sin_addr.s_addr; | |
| 69 } | |
| 70 | |
| 71 /* the last address is "*" */ | |
| 72 | |
| 73 for ( /* void */ ; i < imip->naddrs - 1; i++) { | |
| 74 if (in_addr == imia[i].addr) { | |
| 75 break; | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 | |
| 81 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); | |
| 82 if (s == NULL) { | |
| 83 ngx_mail_close_connection(c); | |
| 84 return; | |
| 85 } | |
| 86 | |
| 87 s->main_conf = imia[i].ctx->main_conf; | |
| 88 s->srv_conf = imia[i].ctx->srv_conf; | |
| 89 | |
| 90 s->addr_text = &imia[i].addr_text; | |
| 91 | |
| 92 c->data = s; | |
| 93 s->connection = c; | |
| 94 | |
| 95 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V", | |
| 96 c->number, &c->addr_text, s->addr_text); | |
| 97 | |
| 98 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); | |
| 99 if (ctx == NULL) { | |
| 100 ngx_mail_close_connection(c); | |
| 101 return; | |
| 102 } | |
| 103 | |
| 104 ctx->client = &c->addr_text; | |
| 105 ctx->session = s; | |
| 106 | |
| 107 c->log->connection = c->number; | |
| 108 c->log->handler = ngx_mail_log_error; | |
| 109 c->log->data = ctx; | |
| 110 c->log->action = "sending client greeting line"; | |
| 111 | |
| 112 c->log_error = NGX_ERROR_INFO; | |
| 113 | |
| 114 #if (NGX_MAIL_SSL) | |
| 356 | 115 { |
| 116 ngx_mail_ssl_conf_t *sslcf; | |
| 290 | 117 |
| 118 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 119 | |
| 120 if (sslcf->enable) { | |
| 426 | 121 c->log->action = "SSL handshaking"; |
| 122 | |
| 290 | 123 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 124 return; | |
| 125 } | |
| 426 | 126 |
| 127 if (imia[i].ssl) { | |
| 128 | |
| 129 c->log->action = "SSL handshaking"; | |
| 130 | |
| 131 if (sslcf->ssl.ctx == NULL) { | |
| 132 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 133 "no \"ssl_certificate\" is defined " | |
| 134 "in server listening on SSL port"); | |
| 135 ngx_mail_close_connection(c); | |
| 136 return; | |
| 137 } | |
| 138 | |
| 139 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
| 140 return; | |
| 141 } | |
| 142 | |
| 356 | 143 } |
| 290 | 144 #endif |
| 145 | |
| 146 ngx_mail_init_session(c); | |
| 147 } | |
| 148 | |
| 149 | |
| 150 #if (NGX_MAIL_SSL) | |
| 151 | |
| 336 | 152 void |
| 290 | 153 ngx_mail_starttls_handler(ngx_event_t *rev) |
| 154 { | |
| 155 ngx_connection_t *c; | |
| 156 ngx_mail_session_t *s; | |
| 157 ngx_mail_ssl_conf_t *sslcf; | |
| 158 | |
| 159 c = rev->data; | |
| 160 s = c->data; | |
| 161 s->starttls = 1; | |
| 162 | |
| 163 c->log->action = "in starttls state"; | |
| 164 | |
| 165 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 166 | |
| 167 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
| 168 } | |
| 169 | |
| 170 | |
| 171 static void | |
| 172 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) | |
| 173 { | |
| 174 ngx_mail_session_t *s; | |
| 175 ngx_mail_core_srv_conf_t *cscf; | |
| 176 | |
| 177 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { | |
| 178 ngx_mail_close_connection(c); | |
| 179 return; | |
| 180 } | |
| 181 | |
| 182 if (ngx_ssl_handshake(c) == NGX_AGAIN) { | |
| 183 | |
| 184 s = c->data; | |
| 185 | |
| 186 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 187 | |
| 188 ngx_add_timer(c->read, cscf->timeout); | |
| 189 | |
| 190 c->ssl->handler = ngx_mail_ssl_handshake_handler; | |
| 191 | |
| 192 return; | |
| 193 } | |
| 194 | |
| 195 ngx_mail_ssl_handshake_handler(c); | |
| 196 } | |
| 197 | |
| 198 | |
| 199 static void | |
| 200 ngx_mail_ssl_handshake_handler(ngx_connection_t *c) | |
| 201 { | |
| 336 | 202 ngx_mail_session_t *s; |
| 203 ngx_mail_core_srv_conf_t *cscf; | |
| 290 | 204 |
| 205 if (c->ssl->handshaked) { | |
| 206 | |
| 207 s = c->data; | |
| 208 | |
| 209 if (s->starttls) { | |
| 336 | 210 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 211 | |
| 212 c->read->handler = cscf->protocol->init_protocol; | |
| 290 | 213 c->write->handler = ngx_mail_send; |
| 214 | |
| 336 | 215 cscf->protocol->init_protocol(c->read); |
| 290 | 216 |
| 217 return; | |
| 218 } | |
| 219 | |
| 411 | 220 c->read->ready = 0; |
| 221 | |
| 290 | 222 ngx_mail_init_session(c); |
| 223 return; | |
| 224 } | |
| 225 | |
| 226 ngx_mail_close_connection(c); | |
| 227 } | |
| 228 | |
| 229 #endif | |
| 230 | |
| 231 | |
| 232 static void | |
| 233 ngx_mail_init_session(ngx_connection_t *c) | |
| 234 { | |
| 235 ngx_mail_session_t *s; | |
| 236 ngx_mail_core_srv_conf_t *cscf; | |
| 237 | |
| 238 s = c->data; | |
| 239 | |
| 240 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 241 | |
| 336 | 242 s->protocol = cscf->protocol->type; |
| 290 | 243 |
| 244 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); | |
| 245 if (s->ctx == NULL) { | |
| 246 ngx_mail_session_internal_server_error(s); | |
| 247 return; | |
| 248 } | |
| 249 | |
| 336 | 250 c->write->handler = ngx_mail_send; |
| 251 | |
| 252 cscf->protocol->init_session(s, c); | |
| 253 } | |
| 254 | |
| 255 | |
| 256 ngx_int_t | |
| 257 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, | |
| 258 ngx_mail_core_srv_conf_t *cscf) | |
| 259 { | |
| 382 | 260 s->salt.data = ngx_pnalloc(c->pool, |
| 261 sizeof(" <18446744073709551616.@>" CRLF) - 1 | |
| 262 + NGX_TIME_T_LEN | |
| 263 + cscf->server_name.len); | |
| 336 | 264 if (s->salt.data == NULL) { |
| 265 return NGX_ERROR; | |
| 266 } | |
| 267 | |
| 268 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, | |
| 269 ngx_random(), ngx_time(), &cscf->server_name) | |
| 270 - s->salt.data; | |
| 271 | |
| 272 return NGX_OK; | |
| 273 } | |
| 274 | |
| 275 | |
| 276 #if (NGX_MAIL_SSL) | |
| 277 | |
| 278 ngx_int_t | |
| 279 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 280 { | |
| 281 ngx_mail_ssl_conf_t *sslcf; | |
| 282 | |
| 283 if (c->ssl) { | |
| 284 return 0; | |
| 285 } | |
| 286 | |
| 287 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 288 | |
| 289 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 290 return 1; | |
| 291 } | |
| 292 | |
| 293 return 0; | |
| 294 } | |
| 290 | 295 |
| 336 | 296 #endif |
| 297 | |
| 298 | |
| 299 ngx_int_t | |
| 300 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n) | |
| 301 { | |
| 302 u_char *p, *last; | |
| 303 ngx_str_t *arg, plain; | |
| 304 | |
| 305 arg = s->args.elts; | |
| 306 | |
| 307 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 308 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 309 "mail auth plain: \"%V\"", &arg[n]); | |
| 310 #endif | |
| 311 | |
| 382 | 312 plain.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
| 336 | 313 if (plain.data == NULL){ |
| 314 return NGX_ERROR; | |
| 315 } | |
| 316 | |
| 317 if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) { | |
| 318 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 319 "client sent invalid base64 encoding in AUTH PLAIN command"); | |
| 320 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 321 } | |
| 322 | |
| 323 p = plain.data; | |
| 324 last = p + plain.len; | |
| 325 | |
| 326 while (p < last && *p++) { /* void */ } | |
| 327 | |
| 328 if (p == last) { | |
| 329 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 330 "client sent invalid login in AUTH PLAIN command"); | |
| 331 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 332 } | |
| 333 | |
| 334 s->login.data = p; | |
| 335 | |
| 336 while (p < last && *p) { p++; } | |
| 337 | |
| 338 if (p == last) { | |
| 339 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 340 "client sent invalid password in AUTH PLAIN command"); | |
| 341 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 290 | 342 } |
| 343 | |
| 336 | 344 s->login.len = p++ - s->login.data; |
| 345 | |
| 346 s->passwd.len = last - p; | |
| 347 s->passwd.data = p; | |
| 348 | |
| 349 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 350 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 351 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd); | |
| 352 #endif | |
| 353 | |
| 354 return NGX_DONE; | |
| 355 } | |
| 356 | |
| 290 | 357 |
| 336 | 358 ngx_int_t |
|
468
2580fe1c5a9a
Mail: support for smtp auth login with username.
Maxim Dounin <mdounin@mdounin.ru>
parents:
467
diff
changeset
|
359 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c, |
|
481
abbf48179d76
Mail: minor changes to auth login with username support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
468
diff
changeset
|
360 ngx_uint_t n) |
| 336 | 361 { |
| 362 ngx_str_t *arg; | |
| 363 | |
| 364 arg = s->args.elts; | |
|
481
abbf48179d76
Mail: minor changes to auth login with username support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
468
diff
changeset
|
365 arg += n; |
|
468
2580fe1c5a9a
Mail: support for smtp auth login with username.
Maxim Dounin <mdounin@mdounin.ru>
parents:
467
diff
changeset
|
366 |
| 336 | 367 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
| 368 "mail auth login username: \"%V\"", &arg[0]); | |
| 369 | |
| 382 | 370 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
| 336 | 371 if (s->login.data == NULL){ |
| 372 return NGX_ERROR; | |
| 373 } | |
| 322 | 374 |
| 336 | 375 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
| 376 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 377 "client sent invalid base64 encoding in AUTH LOGIN command"); | |
| 378 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 379 } | |
| 380 | |
| 381 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 382 "mail auth login username: \"%V\"", &s->login); | |
| 383 | |
| 384 return NGX_OK; | |
| 385 } | |
| 386 | |
| 387 | |
| 388 ngx_int_t | |
| 389 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 390 { | |
| 391 ngx_str_t *arg; | |
| 392 | |
| 393 arg = s->args.elts; | |
| 394 | |
| 395 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 396 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 397 "mail auth login password: \"%V\"", &arg[0]); | |
| 398 #endif | |
| 399 | |
| 382 | 400 s->passwd.data = ngx_pnalloc(c->pool, |
| 401 ngx_base64_decoded_length(arg[0].len)); | |
| 336 | 402 if (s->passwd.data == NULL){ |
| 403 return NGX_ERROR; | |
| 404 } | |
| 405 | |
| 406 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { | |
| 407 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 408 "client sent invalid base64 encoding in AUTH LOGIN command"); | |
| 409 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 410 } | |
| 290 | 411 |
| 336 | 412 #if (NGX_DEBUG_MAIL_PASSWD) |
| 413 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 414 "mail auth login password: \"%V\"", &s->passwd); | |
| 415 #endif | |
| 416 | |
| 417 return NGX_DONE; | |
| 418 } | |
| 419 | |
| 420 | |
| 421 ngx_int_t | |
| 422 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c, | |
| 423 char *prefix, size_t len) | |
| 424 { | |
| 425 u_char *p; | |
| 426 ngx_str_t salt; | |
| 427 ngx_uint_t n; | |
| 428 | |
| 382 | 429 p = ngx_pnalloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2); |
| 336 | 430 if (p == NULL) { |
| 431 return NGX_ERROR; | |
| 432 } | |
| 433 | |
| 434 salt.data = ngx_cpymem(p, prefix, len); | |
| 435 s->salt.len -= 2; | |
| 436 | |
| 437 ngx_encode_base64(&salt, &s->salt); | |
| 438 | |
| 439 s->salt.len += 2; | |
| 440 n = len + salt.len; | |
| 441 p[n++] = CR; p[n++] = LF; | |
| 442 | |
| 443 s->out.len = n; | |
| 444 s->out.data = p; | |
| 290 | 445 |
| 336 | 446 return NGX_OK; |
| 447 } | |
| 448 | |
| 449 | |
| 450 ngx_int_t | |
| 451 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 452 { | |
| 453 u_char *p, *last; | |
| 454 ngx_str_t *arg; | |
| 455 | |
| 456 arg = s->args.elts; | |
| 457 | |
| 458 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 459 "mail auth cram-md5: \"%V\"", &arg[0]); | |
| 290 | 460 |
| 382 | 461 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
| 336 | 462 if (s->login.data == NULL){ |
| 463 return NGX_ERROR; | |
| 464 } | |
| 290 | 465 |
| 336 | 466 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
| 467 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 468 "client sent invalid base64 encoding in AUTH CRAM-MD5 command"); | |
| 469 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 470 } | |
| 471 | |
| 472 p = s->login.data; | |
| 473 last = p + s->login.len; | |
| 474 | |
| 475 while (p < last) { | |
| 476 if (*p++ == ' ') { | |
| 477 s->login.len = p - s->login.data - 1; | |
| 478 s->passwd.len = last - p; | |
| 479 s->passwd.data = p; | |
| 480 break; | |
| 290 | 481 } |
| 482 } | |
| 483 | |
| 336 | 484 if (s->passwd.len != 32) { |
| 485 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 486 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command"); | |
| 487 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 290 | 488 } |
| 489 | |
| 336 | 490 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
| 491 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd); | |
| 492 | |
| 493 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; | |
| 494 | |
| 495 return NGX_DONE; | |
| 290 | 496 } |
| 497 | |
| 498 | |
| 499 void | |
| 500 ngx_mail_send(ngx_event_t *wev) | |
| 501 { | |
| 502 ngx_int_t n; | |
| 503 ngx_connection_t *c; | |
| 504 ngx_mail_session_t *s; | |
| 505 ngx_mail_core_srv_conf_t *cscf; | |
| 506 | |
| 507 c = wev->data; | |
| 508 s = c->data; | |
| 509 | |
| 510 if (wev->timedout) { | |
| 511 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 512 c->timedout = 1; | |
| 513 ngx_mail_close_connection(c); | |
| 514 return; | |
| 515 } | |
| 516 | |
| 517 if (s->out.len == 0) { | |
| 459 | 518 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
| 290 | 519 ngx_mail_close_connection(c); |
| 520 } | |
| 521 | |
| 522 return; | |
| 523 } | |
| 524 | |
| 525 n = c->send(c, s->out.data, s->out.len); | |
| 526 | |
| 527 if (n > 0) { | |
| 528 s->out.len -= n; | |
| 529 | |
| 530 if (wev->timer_set) { | |
| 531 ngx_del_timer(wev); | |
| 532 } | |
| 533 | |
| 534 if (s->quit) { | |
| 535 ngx_mail_close_connection(c); | |
| 536 return; | |
| 537 } | |
| 538 | |
| 539 if (s->blocked) { | |
| 540 c->read->handler(c->read); | |
| 541 } | |
| 542 | |
| 543 return; | |
| 544 } | |
| 545 | |
| 546 if (n == NGX_ERROR) { | |
| 547 ngx_mail_close_connection(c); | |
| 548 return; | |
| 549 } | |
| 550 | |
| 551 /* n == NGX_AGAIN */ | |
| 552 | |
| 553 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 554 | |
| 555 ngx_add_timer(c->write, cscf->timeout); | |
| 556 | |
| 459 | 557 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
| 290 | 558 ngx_mail_close_connection(c); |
| 559 return; | |
| 560 } | |
| 561 } | |
| 562 | |
| 563 | |
| 336 | 564 ngx_int_t |
| 565 ngx_mail_read_command(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 290 | 566 { |
| 336 | 567 ssize_t n; |
| 568 ngx_int_t rc; | |
| 569 ngx_str_t l; | |
| 290 | 570 ngx_mail_core_srv_conf_t *cscf; |
| 571 | |
| 336 | 572 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); |
| 290 | 573 |
| 574 if (n == NGX_ERROR || n == 0) { | |
| 336 | 575 ngx_mail_close_connection(c); |
| 290 | 576 return NGX_ERROR; |
| 577 } | |
| 578 | |
| 579 if (n > 0) { | |
| 580 s->buffer->last += n; | |
| 581 } | |
| 582 | |
| 583 if (n == NGX_AGAIN) { | |
| 459 | 584 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
| 290 | 585 ngx_mail_session_internal_server_error(s); |
| 586 return NGX_ERROR; | |
| 587 } | |
| 588 | |
|
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589 if (s->buffer->pos == s->buffer->last) { |
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590 return NGX_AGAIN; |
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591 } |
| 290 | 592 } |
| 593 | |
| 336 | 594 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 290 | 595 |
| 336 | 596 rc = cscf->protocol->parse_command(s); |
| 290 | 597 |
| 598 if (rc == NGX_AGAIN) { | |
| 599 | |
| 600 if (s->buffer->last < s->buffer->end) { | |
| 601 return rc; | |
| 602 } | |
| 603 | |
| 604 l.len = s->buffer->last - s->buffer->start; | |
| 605 l.data = s->buffer->start; | |
| 606 | |
| 336 | 607 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
| 290 | 608 "client sent too long command \"%V\"", &l); |
| 609 | |
| 610 s->quit = 1; | |
| 611 | |
| 612 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 613 } | |
| 614 | |
| 615 if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) { | |
| 616 return rc; | |
| 617 } | |
| 618 | |
| 619 if (rc == NGX_ERROR) { | |
| 336 | 620 ngx_mail_close_connection(c); |
| 290 | 621 return NGX_ERROR; |
| 622 } | |
| 623 | |
| 624 return NGX_OK; | |
| 625 } | |
| 626 | |
| 627 | |
| 628 void | |
| 336 | 629 ngx_mail_auth(ngx_mail_session_t *s, ngx_connection_t *c) |
| 630 { | |
| 631 s->args.nelts = 0; | |
|
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632 |
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633 if (s->buffer->pos == s->buffer->last) { |
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634 s->buffer->pos = s->buffer->start; |
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635 s->buffer->last = s->buffer->start; |
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636 } |
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637 |
| 336 | 638 s->state = 0; |
| 639 | |
| 640 if (c->read->timer_set) { | |
| 641 ngx_del_timer(c->read); | |
| 642 } | |
| 643 | |
| 644 s->login_attempt++; | |
| 645 | |
| 646 ngx_mail_auth_http_init(s); | |
| 647 } | |
| 648 | |
| 649 | |
| 650 void | |
| 290 | 651 ngx_mail_session_internal_server_error(ngx_mail_session_t *s) |
| 652 { | |
| 336 | 653 ngx_mail_core_srv_conf_t *cscf; |
| 654 | |
| 655 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 656 | |
| 657 s->out = cscf->protocol->internal_server_error; | |
| 290 | 658 s->quit = 1; |
| 659 | |
| 660 ngx_mail_send(s->connection->write); | |
| 661 } | |
| 662 | |
| 663 | |
| 664 void | |
| 665 ngx_mail_close_connection(ngx_connection_t *c) | |
| 666 { | |
| 667 ngx_pool_t *pool; | |
| 668 | |
| 669 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 670 "close mail connection: %d", c->fd); | |
| 671 | |
| 672 #if (NGX_MAIL_SSL) | |
| 673 | |
| 674 if (c->ssl) { | |
| 675 if (ngx_ssl_shutdown(c) == NGX_AGAIN) { | |
| 676 c->ssl->handler = ngx_mail_close_connection; | |
| 677 return; | |
| 678 } | |
| 679 } | |
| 680 | |
| 681 #endif | |
| 682 | |
| 336 | 683 #if (NGX_STAT_STUB) |
| 684 ngx_atomic_fetch_add(ngx_stat_active, -1); | |
| 685 #endif | |
| 686 | |
| 290 | 687 c->destroyed = 1; |
| 688 | |
| 689 pool = c->pool; | |
| 690 | |
| 691 ngx_close_connection(c); | |
| 692 | |
| 693 ngx_destroy_pool(pool); | |
| 694 } | |
| 695 | |
| 696 | |
| 336 | 697 u_char * |
| 290 | 698 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) |
| 699 { | |
| 700 u_char *p; | |
| 701 ngx_mail_session_t *s; | |
| 702 ngx_mail_log_ctx_t *ctx; | |
| 703 | |
| 704 if (log->action) { | |
| 705 p = ngx_snprintf(buf, len, " while %s", log->action); | |
| 706 len -= p - buf; | |
| 707 buf = p; | |
| 708 } | |
| 709 | |
| 710 ctx = log->data; | |
| 711 | |
| 712 p = ngx_snprintf(buf, len, ", client: %V", ctx->client); | |
| 713 len -= p - buf; | |
| 714 buf = p; | |
| 715 | |
| 716 s = ctx->session; | |
| 717 | |
| 718 if (s == NULL) { | |
| 719 return p; | |
| 720 } | |
| 721 | |
| 336 | 722 p = ngx_snprintf(buf, len, "%s, server: %V", |
| 723 s->starttls ? " using starttls" : "", | |
| 724 s->addr_text); | |
| 290 | 725 len -= p - buf; |
| 726 buf = p; | |
| 727 | |
| 728 if (s->login.len == 0) { | |
| 729 return p; | |
| 730 } | |
| 731 | |
| 732 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); | |
| 733 len -= p - buf; | |
| 734 buf = p; | |
| 735 | |
| 736 if (s->proxy == NULL) { | |
| 737 return p; | |
| 738 } | |
| 739 | |
| 740 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); | |
| 741 | |
| 742 return p; | |
| 743 } |