Mercurial > hg > nginx-mail
annotate src/mail/ngx_mail_handler.c @ 398:f9e6413396d4 PATCH_NGINX_MAIL_0_2
Mail: IMAP AUTHENTICATE command support.
Supported auth methods: PLAIN, LOGIN, CRAM-MD5.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 19 Jul 2007 02:43:59 +0000 |
| parents | e2d916d7e50f |
| children | f1e2fab7a46c |
| 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 static void ngx_mail_init_protocol(ngx_event_t *rev); | |
| 15 static ngx_int_t ngx_mail_decode_auth_plain(ngx_mail_session_t *s, | |
| 16 ngx_str_t *encoded); | |
| 17 static void ngx_mail_do_auth(ngx_mail_session_t *s); | |
| 18 static u_char *ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len); | |
| 19 | |
| 20 #if (NGX_MAIL_SSL) | |
| 21 static void ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c); | |
| 22 static void ngx_mail_ssl_handshake_handler(ngx_connection_t *c); | |
| 23 #endif | |
| 24 | |
| 25 | |
| 26 static ngx_str_t greetings[] = { | |
| 27 ngx_string("+OK POP3 ready" CRLF), | |
| 28 ngx_string("* OK IMAP4 ready" CRLF) | |
| 29 /* SMTP greeting */ | |
| 30 }; | |
| 31 | |
| 32 static ngx_str_t internal_server_errors[] = { | |
| 33 ngx_string("-ERR internal server error" CRLF), | |
| 34 ngx_string("* BAD internal server error" CRLF), | |
| 35 ngx_string("451 4.3.2 Internal server error" CRLF), | |
| 36 }; | |
| 37 | |
| 38 static u_char pop3_ok[] = "+OK" CRLF; | |
| 39 static u_char pop3_next[] = "+ " CRLF; | |
| 40 static u_char pop3_username[] = "+ VXNlcm5hbWU6" CRLF; | |
| 41 static u_char pop3_password[] = "+ UGFzc3dvcmQ6" CRLF; | |
| 42 static u_char pop3_invalid_command[] = "-ERR invalid command" CRLF; | |
| 43 | |
| 44 static u_char imap_star[] = "* "; | |
| 45 static u_char imap_ok[] = "OK completed" CRLF; | |
| 46 static u_char imap_next[] = "+ OK" CRLF; | |
| 47 static u_char imap_bye[] = "* BYE" CRLF; | |
| 48 static u_char imap_invalid_command[] = "BAD invalid command" CRLF; | |
| 49 | |
| 50 static u_char smtp_ok[] = "250 2.0.0 OK" CRLF; | |
| 51 static u_char smtp_bye[] = "221 2.0.0 Bye" CRLF; | |
| 52 static u_char smtp_next[] = "334 " CRLF; | |
| 53 static u_char smtp_username[] = "334 VXNlcm5hbWU6" CRLF; | |
| 54 static u_char smtp_password[] = "334 UGFzc3dvcmQ6" CRLF; | |
| 55 static u_char smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF; | |
| 56 static u_char smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF; | |
| 57 static u_char smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF; | |
| 58 | |
| 59 | |
| 60 void | |
| 61 ngx_mail_init_connection(ngx_connection_t *c) | |
| 62 { | |
| 63 in_addr_t in_addr; | |
| 64 socklen_t len; | |
| 65 ngx_uint_t i; | |
| 66 struct sockaddr_in sin; | |
| 67 ngx_mail_log_ctx_t *ctx; | |
| 68 ngx_mail_in_port_t *imip; | |
| 69 ngx_mail_in_addr_t *imia; | |
| 70 ngx_mail_session_t *s; | |
| 71 #if (NGX_MAIL_SSL) | |
| 72 ngx_mail_ssl_conf_t *sslcf; | |
| 73 #endif | |
| 74 | |
| 75 | |
| 76 /* find the server configuration for the address:port */ | |
| 77 | |
| 78 /* AF_INET only */ | |
| 79 | |
| 80 imip = c->listening->servers; | |
| 81 imia = imip->addrs; | |
| 82 | |
| 83 i = 0; | |
| 84 | |
| 85 if (imip->naddrs > 1) { | |
| 86 | |
| 87 /* | |
| 88 * There are several addresses on this port and one of them | |
| 89 * is the "*:port" wildcard so getsockname() is needed to determine | |
| 90 * the server address. | |
| 91 * | |
| 92 * AcceptEx() already gave this address. | |
| 93 */ | |
| 94 | |
| 95 #if (NGX_WIN32) | |
| 96 if (c->local_sockaddr) { | |
| 97 in_addr = | |
| 98 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr; | |
| 99 | |
| 100 } else | |
| 101 #endif | |
| 102 { | |
| 103 len = sizeof(struct sockaddr_in); | |
| 104 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) { | |
| 105 ngx_connection_error(c, ngx_socket_errno, | |
| 106 "getsockname() failed"); | |
| 107 ngx_mail_close_connection(c); | |
| 108 return; | |
| 109 } | |
| 110 | |
| 111 in_addr = sin.sin_addr.s_addr; | |
| 112 } | |
| 113 | |
| 114 /* the last address is "*" */ | |
| 115 | |
| 116 for ( /* void */ ; i < imip->naddrs - 1; i++) { | |
| 117 if (in_addr == imia[i].addr) { | |
| 118 break; | |
| 119 } | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 | |
| 124 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); | |
| 125 if (s == NULL) { | |
| 126 ngx_mail_close_connection(c); | |
| 127 return; | |
| 128 } | |
| 129 | |
| 130 s->main_conf = imia[i].ctx->main_conf; | |
| 131 s->srv_conf = imia[i].ctx->srv_conf; | |
| 132 | |
| 133 s->addr_text = &imia[i].addr_text; | |
| 134 | |
| 135 c->data = s; | |
| 136 s->connection = c; | |
| 137 | |
| 138 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V", | |
| 139 c->number, &c->addr_text, s->addr_text); | |
| 140 | |
| 141 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); | |
| 142 if (ctx == NULL) { | |
| 143 ngx_mail_close_connection(c); | |
| 144 return; | |
| 145 } | |
| 146 | |
| 147 ctx->client = &c->addr_text; | |
| 148 ctx->session = s; | |
| 149 | |
| 150 c->log->connection = c->number; | |
| 151 c->log->handler = ngx_mail_log_error; | |
| 152 c->log->data = ctx; | |
| 153 c->log->action = "sending client greeting line"; | |
| 154 | |
| 155 c->log_error = NGX_ERROR_INFO; | |
| 156 | |
| 157 #if (NGX_MAIL_SSL) | |
| 158 | |
| 159 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 160 | |
| 161 if (sslcf->enable) { | |
| 162 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
| 163 return; | |
| 164 } | |
| 165 | |
| 166 #endif | |
| 167 | |
| 168 ngx_mail_init_session(c); | |
| 169 } | |
| 170 | |
| 171 | |
| 172 #if (NGX_MAIL_SSL) | |
| 173 | |
| 394 | 174 void |
| 290 | 175 ngx_mail_starttls_handler(ngx_event_t *rev) |
| 176 { | |
| 177 ngx_connection_t *c; | |
| 178 ngx_mail_session_t *s; | |
| 179 ngx_mail_ssl_conf_t *sslcf; | |
| 180 | |
| 181 c = rev->data; | |
| 182 s = c->data; | |
| 183 s->starttls = 1; | |
| 184 | |
| 185 c->log->action = "in starttls state"; | |
| 186 | |
| 187 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 188 | |
| 189 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
| 190 } | |
| 191 | |
| 192 | |
| 193 static void | |
| 194 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) | |
| 195 { | |
| 196 ngx_mail_session_t *s; | |
| 197 ngx_mail_core_srv_conf_t *cscf; | |
| 198 | |
| 199 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { | |
| 200 ngx_mail_close_connection(c); | |
| 201 return; | |
| 202 } | |
| 203 | |
| 204 if (ngx_ssl_handshake(c) == NGX_AGAIN) { | |
| 205 | |
| 206 s = c->data; | |
| 207 | |
| 208 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 209 | |
| 210 ngx_add_timer(c->read, cscf->timeout); | |
| 211 | |
| 212 c->ssl->handler = ngx_mail_ssl_handshake_handler; | |
| 213 | |
| 214 return; | |
| 215 } | |
| 216 | |
| 217 ngx_mail_ssl_handshake_handler(c); | |
| 218 } | |
| 219 | |
| 220 | |
| 221 static void | |
| 222 ngx_mail_ssl_handshake_handler(ngx_connection_t *c) | |
| 223 { | |
| 224 ngx_mail_session_t *s; | |
| 225 | |
| 226 if (c->ssl->handshaked) { | |
| 227 | |
| 228 s = c->data; | |
| 229 | |
| 230 if (s->starttls) { | |
| 231 c->read->handler = ngx_mail_init_protocol; | |
| 232 c->write->handler = ngx_mail_send; | |
| 233 | |
| 234 ngx_mail_init_protocol(c->read); | |
| 235 | |
| 236 return; | |
| 237 } | |
| 238 | |
| 239 ngx_mail_init_session(c); | |
| 240 return; | |
| 241 } | |
| 242 | |
| 243 ngx_mail_close_connection(c); | |
| 244 } | |
| 245 | |
| 246 #endif | |
| 247 | |
| 248 | |
| 249 static void | |
| 250 ngx_mail_init_session(ngx_connection_t *c) | |
| 251 { | |
| 252 u_char *p; | |
| 253 ngx_mail_session_t *s; | |
| 254 ngx_mail_core_srv_conf_t *cscf; | |
| 255 | |
| 256 c->read->handler = ngx_mail_init_protocol; | |
| 257 c->write->handler = ngx_mail_send; | |
| 258 | |
| 259 s = c->data; | |
| 260 | |
| 261 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 262 | |
| 263 s->protocol = cscf->protocol; | |
| 264 | |
| 265 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); | |
| 266 if (s->ctx == NULL) { | |
| 267 ngx_mail_session_internal_server_error(s); | |
| 268 return; | |
| 269 } | |
| 270 | |
| 394 | 271 if (cscf->handler_init_session) { |
| 272 cscf->handler_init_session(c); | |
| 273 return; | |
| 274 } | |
| 275 | |
| 290 | 276 if (s->protocol == NGX_MAIL_SMTP_PROTOCOL) { |
| 277 s->out = cscf->smtp_greeting; | |
| 278 | |
| 279 } else { | |
| 280 s->out = greetings[s->protocol]; | |
| 281 } | |
| 282 | |
| 283 if ((s->protocol == NGX_MAIL_POP3_PROTOCOL | |
| 284 && (cscf->pop3_auth_methods | |
| 285 & (NGX_MAIL_AUTH_APOP_ENABLED|NGX_MAIL_AUTH_CRAM_MD5_ENABLED))) | |
| 286 | |
|
398
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
287 || (s->protocol == NGX_MAIL_IMAP_PROTOCOL |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
288 && (cscf->imap_auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
289 |
| 290 | 290 || (s->protocol == NGX_MAIL_SMTP_PROTOCOL |
| 291 && (cscf->smtp_auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED))) | |
| 292 { | |
| 293 s->salt.data = ngx_palloc(c->pool, | |
| 294 sizeof(" <18446744073709551616.@>" CRLF) - 1 | |
| 295 + NGX_TIME_T_LEN | |
| 296 + cscf->server_name.len); | |
| 297 if (s->salt.data == NULL) { | |
| 298 ngx_mail_session_internal_server_error(s); | |
| 299 return; | |
| 300 } | |
| 301 | |
| 302 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, | |
| 303 ngx_random(), ngx_time(), &cscf->server_name) | |
| 304 - s->salt.data; | |
| 305 | |
| 306 if (s->protocol == NGX_MAIL_POP3_PROTOCOL) { | |
| 296 | 307 s->out.data = ngx_palloc(c->pool, |
| 290 | 308 greetings[0].len + 1 + s->salt.len); |
| 296 | 309 if (s->out.data == NULL) { |
| 310 ngx_mail_session_internal_server_error(s); | |
| 311 return; | |
| 312 } | |
| 290 | 313 |
| 296 | 314 p = ngx_cpymem(s->out.data, |
| 290 | 315 greetings[0].data, greetings[0].len - 2); |
| 296 | 316 *p++ = ' '; |
| 317 p = ngx_cpymem(p, s->salt.data, s->salt.len); | |
| 290 | 318 |
| 296 | 319 s->out.len = p - s->out.data; |
| 290 | 320 } |
| 321 } | |
| 322 | |
| 323 ngx_add_timer(c->read, cscf->timeout); | |
| 324 | |
| 325 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { | |
| 326 ngx_mail_close_connection(c); | |
| 327 } | |
| 328 | |
| 329 ngx_mail_send(c->write); | |
| 330 } | |
| 331 | |
| 332 | |
| 333 void | |
| 334 ngx_mail_send(ngx_event_t *wev) | |
| 335 { | |
| 336 ngx_int_t n; | |
| 337 ngx_connection_t *c; | |
| 338 ngx_mail_session_t *s; | |
| 339 ngx_mail_core_srv_conf_t *cscf; | |
| 340 | |
| 341 c = wev->data; | |
| 342 s = c->data; | |
| 343 | |
| 344 if (wev->timedout) { | |
| 345 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 346 c->timedout = 1; | |
| 347 ngx_mail_close_connection(c); | |
| 348 return; | |
| 349 } | |
| 350 | |
| 351 if (s->out.len == 0) { | |
| 352 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { | |
| 353 ngx_mail_close_connection(c); | |
| 354 } | |
| 355 | |
| 356 return; | |
| 357 } | |
| 358 | |
| 359 n = c->send(c, s->out.data, s->out.len); | |
| 360 | |
| 361 if (n > 0) { | |
| 362 s->out.len -= n; | |
| 363 | |
| 364 if (wev->timer_set) { | |
| 365 ngx_del_timer(wev); | |
| 366 } | |
| 367 | |
| 368 if (s->quit) { | |
| 369 ngx_mail_close_connection(c); | |
| 370 return; | |
| 371 } | |
| 372 | |
| 373 if (s->blocked) { | |
| 374 c->read->handler(c->read); | |
| 375 } | |
| 376 | |
| 377 return; | |
| 378 } | |
| 379 | |
| 380 if (n == NGX_ERROR) { | |
| 381 ngx_mail_close_connection(c); | |
| 382 return; | |
| 383 } | |
| 384 | |
| 385 /* n == NGX_AGAIN */ | |
| 386 | |
| 387 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 388 | |
| 389 ngx_add_timer(c->write, cscf->timeout); | |
| 390 | |
| 391 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { | |
| 392 ngx_mail_close_connection(c); | |
| 393 return; | |
| 394 } | |
| 395 } | |
| 396 | |
| 397 | |
| 398 static void | |
| 399 ngx_mail_init_protocol(ngx_event_t *rev) | |
| 400 { | |
| 401 size_t size; | |
| 402 ngx_connection_t *c; | |
| 403 ngx_mail_session_t *s; | |
| 404 ngx_mail_core_srv_conf_t *cscf; | |
| 405 | |
| 406 c = rev->data; | |
| 407 | |
| 408 c->log->action = "in auth state"; | |
| 409 | |
| 410 if (rev->timedout) { | |
| 411 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 412 c->timedout = 1; | |
| 413 ngx_mail_close_connection(c); | |
| 414 return; | |
| 415 } | |
| 416 | |
| 417 s = c->data; | |
| 394 | 418 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 419 | |
| 420 if (cscf->handler_init_protocol) { | |
| 421 cscf->handler_init_protocol(rev); | |
| 422 return; | |
| 423 } | |
| 290 | 424 |
| 425 switch (s->protocol) { | |
| 426 | |
| 427 case NGX_MAIL_POP3_PROTOCOL: | |
| 428 size = 128; | |
| 429 s->mail_state = ngx_pop3_start; | |
| 430 c->read->handler = ngx_pop3_auth_state; | |
| 431 break; | |
| 432 | |
| 433 case NGX_MAIL_IMAP_PROTOCOL: | |
| 434 size = cscf->imap_client_buffer_size; | |
| 435 s->mail_state = ngx_imap_start; | |
| 436 c->read->handler = ngx_imap_auth_state; | |
| 437 break; | |
| 438 | |
| 439 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
| 440 size = 512; | |
| 441 s->mail_state = ngx_smtp_start; | |
| 442 c->read->handler = ngx_smtp_auth_state; | |
| 443 break; | |
| 444 } | |
| 445 | |
| 446 if (s->buffer == NULL) { | |
| 447 if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) | |
| 448 == NGX_ERROR) | |
| 449 { | |
| 450 ngx_mail_session_internal_server_error(s); | |
| 451 return; | |
| 452 } | |
| 453 | |
| 454 s->buffer = ngx_create_temp_buf(c->pool, size); | |
| 455 if (s->buffer == NULL) { | |
| 456 ngx_mail_session_internal_server_error(s); | |
| 457 return; | |
| 458 } | |
| 459 } | |
| 460 | |
| 394 | 461 if (cscf->handler_read) { |
| 462 c->read->handler = cscf->handler_read; | |
| 463 } | |
| 464 | |
| 290 | 465 c->read->handler(rev); |
| 466 } | |
| 467 | |
| 468 | |
| 469 void | |
| 470 ngx_pop3_auth_state(ngx_event_t *rev) | |
| 471 { | |
| 472 u_char *p, *last, *text; | |
| 473 ssize_t size; | |
| 474 ngx_int_t rc; | |
| 475 ngx_str_t *arg, salt; | |
| 476 ngx_connection_t *c; | |
| 477 ngx_mail_session_t *s; | |
| 478 ngx_mail_core_srv_conf_t *cscf; | |
| 479 #if (NGX_MAIL_SSL) | |
| 480 ngx_mail_ssl_conf_t *sslcf; | |
| 481 #endif | |
| 482 | |
| 483 c = rev->data; | |
| 484 s = c->data; | |
| 485 | |
| 486 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 auth state"); | |
| 487 | |
| 488 if (rev->timedout) { | |
| 489 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 490 c->timedout = 1; | |
| 491 ngx_mail_close_connection(c); | |
| 492 return; | |
| 493 } | |
| 494 | |
| 495 if (s->out.len) { | |
| 496 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "pop3 send handler busy"); | |
| 497 s->blocked = 1; | |
| 498 return; | |
| 499 } | |
| 500 | |
| 501 s->blocked = 0; | |
| 502 | |
| 503 rc = ngx_mail_read_command(s); | |
| 504 | |
| 505 if (rc == NGX_AGAIN || rc == NGX_ERROR) { | |
| 506 return; | |
| 507 } | |
| 508 | |
| 509 text = pop3_ok; | |
| 510 size = sizeof(pop3_ok) - 1; | |
| 511 | |
| 512 if (rc == NGX_OK) { | |
| 513 switch (s->mail_state) { | |
| 514 | |
| 515 case ngx_pop3_start: | |
| 516 | |
| 517 switch (s->command) { | |
| 518 | |
| 519 case NGX_POP3_USER: | |
| 520 | |
| 521 #if (NGX_MAIL_SSL) | |
| 522 | |
| 523 if (c->ssl == NULL) { | |
| 524 sslcf = ngx_mail_get_module_srv_conf(s, | |
| 525 ngx_mail_ssl_module); | |
| 526 | |
| 527 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 528 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 529 break; | |
| 530 } | |
| 531 } | |
| 532 #endif | |
| 533 | |
| 534 if (s->args.nelts == 1) { | |
| 535 s->mail_state = ngx_pop3_user; | |
| 536 | |
| 537 arg = s->args.elts; | |
| 538 s->login.len = arg[0].len; | |
| 539 s->login.data = ngx_palloc(c->pool, s->login.len); | |
| 540 if (s->login.data == NULL) { | |
| 541 ngx_mail_session_internal_server_error(s); | |
| 542 return; | |
| 543 } | |
| 544 | |
| 545 ngx_memcpy(s->login.data, arg[0].data, s->login.len); | |
| 546 | |
| 547 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 548 "pop3 login: \"%V\"", &s->login); | |
| 549 | |
| 550 break; | |
| 551 } | |
| 552 | |
| 553 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 554 break; | |
| 555 | |
| 556 case NGX_POP3_CAPA: | |
| 557 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 558 | |
| 559 #if (NGX_MAIL_SSL) | |
| 560 | |
| 561 if (c->ssl == NULL) { | |
| 562 sslcf = ngx_mail_get_module_srv_conf(s, | |
| 563 ngx_mail_ssl_module); | |
| 564 | |
| 565 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { | |
| 566 size = cscf->pop3_starttls_capability.len; | |
| 567 text = cscf->pop3_starttls_capability.data; | |
| 568 break; | |
| 569 } | |
| 570 | |
| 571 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 572 size = cscf->pop3_starttls_only_capability.len; | |
| 573 text = cscf->pop3_starttls_only_capability.data; | |
| 574 break; | |
| 575 } | |
| 576 } | |
| 577 #endif | |
| 578 | |
| 579 size = cscf->pop3_capability.len; | |
| 580 text = cscf->pop3_capability.data; | |
| 581 break; | |
| 582 | |
| 583 case NGX_POP3_APOP: | |
| 584 | |
| 585 #if (NGX_MAIL_SSL) | |
| 586 | |
| 587 if (c->ssl == NULL) { | |
| 588 sslcf = ngx_mail_get_module_srv_conf(s, | |
| 589 ngx_mail_ssl_module); | |
| 590 | |
| 591 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 592 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 593 break; | |
| 594 } | |
| 595 } | |
| 596 #endif | |
| 597 | |
| 598 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 599 | |
| 600 if ((cscf->pop3_auth_methods & NGX_MAIL_AUTH_APOP_ENABLED) | |
| 601 && s->args.nelts == 2) | |
| 602 { | |
| 603 arg = s->args.elts; | |
| 604 | |
| 605 s->login.len = arg[0].len; | |
| 606 s->login.data = ngx_palloc(c->pool, s->login.len); | |
| 607 if (s->login.data == NULL) { | |
| 608 ngx_mail_session_internal_server_error(s); | |
| 609 return; | |
| 610 } | |
| 611 | |
| 612 ngx_memcpy(s->login.data, arg[0].data, s->login.len); | |
| 613 | |
| 614 s->passwd.len = arg[1].len; | |
| 615 s->passwd.data = ngx_palloc(c->pool, s->passwd.len); | |
| 616 if (s->passwd.data == NULL) { | |
| 617 ngx_mail_session_internal_server_error(s); | |
| 618 return; | |
| 619 } | |
| 620 | |
| 621 ngx_memcpy(s->passwd.data, arg[1].data, s->passwd.len); | |
| 622 | |
| 623 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 624 "pop3 apop: \"%V\" \"%V\"", | |
| 625 &s->login, &s->passwd); | |
| 626 | |
| 627 s->auth_method = NGX_MAIL_AUTH_APOP; | |
| 628 | |
| 629 ngx_mail_do_auth(s); | |
| 630 return; | |
| 631 } | |
| 632 | |
| 633 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 634 break; | |
| 635 | |
| 636 case NGX_POP3_AUTH: | |
| 637 | |
| 638 #if (NGX_MAIL_SSL) | |
| 639 | |
| 640 if (c->ssl == NULL) { | |
| 641 sslcf = ngx_mail_get_module_srv_conf(s, | |
| 642 ngx_mail_ssl_module); | |
| 643 | |
| 644 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 645 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 646 break; | |
| 647 } | |
| 648 } | |
| 649 #endif | |
| 650 | |
| 651 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 652 | |
| 653 if (s->args.nelts == 0) { | |
| 654 size = cscf->pop3_auth_capability.len; | |
| 655 text = cscf->pop3_auth_capability.data; | |
| 656 s->state = 0; | |
| 657 break; | |
| 658 } | |
| 659 | |
| 660 arg = s->args.elts; | |
| 661 | |
| 662 if (arg[0].len == 5) { | |
| 663 | |
| 664 if (ngx_strncasecmp(arg[0].data, (u_char *) "LOGIN", 5) | |
| 665 == 0) | |
| 666 { | |
| 667 | |
| 668 if (s->args.nelts != 1) { | |
| 669 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 670 break; | |
| 671 } | |
| 672 | |
| 673 s->mail_state = ngx_pop3_auth_login_username; | |
| 674 | |
| 675 size = sizeof(pop3_username) - 1; | |
| 676 text = pop3_username; | |
| 677 | |
| 678 break; | |
| 679 | |
| 680 } else if (ngx_strncasecmp(arg[0].data, (u_char *) "PLAIN", | |
| 681 5) | |
| 682 == 0) | |
| 683 { | |
| 684 | |
| 685 if (s->args.nelts == 1) { | |
| 686 s->mail_state = ngx_pop3_auth_plain; | |
| 687 | |
| 688 size = sizeof(pop3_next) - 1; | |
| 689 text = pop3_next; | |
| 690 | |
| 691 break; | |
| 692 } | |
| 693 | |
| 694 if (s->args.nelts == 2) { | |
| 695 | |
| 696 /* | |
| 697 * workaround for Eudora for Mac: it sends | |
| 698 * AUTH PLAIN [base64 encoded] | |
| 699 */ | |
| 700 | |
| 701 rc = ngx_mail_decode_auth_plain(s, &arg[1]); | |
| 702 | |
| 703 if (rc == NGX_OK) { | |
| 704 ngx_mail_do_auth(s); | |
| 705 return; | |
| 706 } | |
| 707 | |
| 708 if (rc == NGX_ERROR) { | |
| 709 ngx_mail_session_internal_server_error(s); | |
| 710 return; | |
| 711 } | |
| 712 | |
| 713 /* rc == NGX_MAIL_PARSE_INVALID_COMMAND */ | |
| 714 | |
| 715 break; | |
| 716 } | |
| 717 | |
| 718 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 719 break; | |
| 720 } | |
| 721 | |
| 722 } else if (arg[0].len == 8 | |
| 723 && ngx_strncasecmp(arg[0].data, | |
| 724 (u_char *) "CRAM-MD5", 8) | |
| 725 == 0) | |
| 726 { | |
| 318 | 727 if (!(cscf->pop3_auth_methods |
| 728 & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) | |
| 729 || s->args.nelts != 1) | |
| 730 { | |
| 290 | 731 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
| 732 break; | |
| 733 } | |
| 734 | |
| 735 s->mail_state = ngx_pop3_auth_cram_md5; | |
| 736 | |
| 737 text = ngx_palloc(c->pool, | |
| 738 sizeof("+ " CRLF) - 1 | |
| 739 + ngx_base64_encoded_length(s->salt.len)); | |
| 740 if (text == NULL) { | |
| 741 ngx_mail_session_internal_server_error(s); | |
| 742 return; | |
| 743 } | |
| 744 | |
| 745 text[0] = '+'; text[1]= ' '; | |
| 746 salt.data = &text[2]; | |
| 747 s->salt.len -= 2; | |
| 748 | |
| 749 ngx_encode_base64(&salt, &s->salt); | |
| 750 | |
| 751 s->salt.len += 2; | |
| 752 size = 2 + salt.len; | |
| 753 text[size++] = CR; text[size++] = LF; | |
| 754 | |
| 755 break; | |
| 756 } | |
| 757 | |
| 758 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 759 break; | |
| 760 | |
| 761 case NGX_POP3_QUIT: | |
| 762 s->quit = 1; | |
| 763 break; | |
| 764 | |
| 765 case NGX_POP3_NOOP: | |
| 766 break; | |
| 767 | |
| 768 #if (NGX_MAIL_SSL) | |
| 769 | |
| 770 case NGX_POP3_STLS: | |
| 771 if (c->ssl == NULL) { | |
| 772 sslcf = ngx_mail_get_module_srv_conf(s, | |
| 773 ngx_mail_ssl_module); | |
| 774 if (sslcf->starttls) { | |
| 775 c->read->handler = ngx_mail_starttls_handler; | |
| 776 break; | |
| 777 } | |
| 778 } | |
| 779 | |
| 780 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 781 break; | |
| 782 #endif | |
| 783 | |
| 784 default: | |
| 785 s->mail_state = ngx_pop3_start; | |
| 786 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 787 break; | |
| 788 } | |
| 789 | |
| 790 break; | |
| 791 | |
| 792 case ngx_pop3_user: | |
| 793 | |
| 794 switch (s->command) { | |
| 795 | |
| 796 case NGX_POP3_PASS: | |
| 797 if (s->args.nelts == 1) { | |
| 798 arg = s->args.elts; | |
| 799 s->passwd.len = arg[0].len; | |
| 800 s->passwd.data = ngx_palloc(c->pool, s->passwd.len); | |
| 801 if (s->passwd.data == NULL) { | |
| 802 ngx_mail_session_internal_server_error(s); | |
| 803 return; | |
| 804 } | |
| 805 | |
| 806 ngx_memcpy(s->passwd.data, arg[0].data, s->passwd.len); | |
| 807 | |
| 808 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 809 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 810 "pop3 passwd: \"%V\"", &s->passwd); | |
| 811 #endif | |
| 812 | |
| 813 ngx_mail_do_auth(s); | |
| 814 return; | |
| 815 } | |
| 816 | |
| 817 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 818 break; | |
| 819 | |
| 820 case NGX_POP3_CAPA: | |
| 821 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 822 size = cscf->pop3_capability.len; | |
| 823 text = cscf->pop3_capability.data; | |
| 824 break; | |
| 825 | |
| 826 case NGX_POP3_QUIT: | |
| 827 s->quit = 1; | |
| 828 break; | |
| 829 | |
| 830 case NGX_POP3_NOOP: | |
| 831 break; | |
| 832 | |
| 833 default: | |
| 834 s->mail_state = ngx_pop3_start; | |
| 835 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 836 break; | |
| 837 } | |
| 838 | |
| 839 break; | |
| 840 | |
| 841 /* suppress warinings */ | |
| 842 case ngx_pop3_passwd: | |
| 843 break; | |
| 844 | |
| 845 case ngx_pop3_auth_login_username: | |
| 846 arg = s->args.elts; | |
| 847 s->mail_state = ngx_pop3_auth_login_password; | |
| 848 | |
| 849 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 850 "pop3 auth login username: \"%V\"", &arg[0]); | |
| 851 | |
| 852 s->login.data = ngx_palloc(c->pool, | |
| 853 ngx_base64_decoded_length(arg[0].len)); | |
| 854 if (s->login.data == NULL){ | |
| 855 ngx_mail_session_internal_server_error(s); | |
| 856 return; | |
| 857 } | |
| 858 | |
| 859 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { | |
| 860 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 861 "client sent invalid base64 encoding " | |
| 862 "in AUTH LOGIN command"); | |
| 863 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 864 break; | |
| 865 } | |
| 866 | |
| 867 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 868 "pop3 auth login username: \"%V\"", &s->login); | |
| 869 | |
| 870 size = sizeof(pop3_password) - 1; | |
| 871 text = pop3_password; | |
| 872 | |
| 873 break; | |
| 874 | |
| 875 case ngx_pop3_auth_login_password: | |
| 876 arg = s->args.elts; | |
| 877 | |
| 878 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 879 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 880 "pop3 auth login password: \"%V\"", &arg[0]); | |
| 881 #endif | |
| 882 | |
| 883 s->passwd.data = ngx_palloc(c->pool, | |
| 884 ngx_base64_decoded_length(arg[0].len)); | |
| 885 if (s->passwd.data == NULL){ | |
| 886 ngx_mail_session_internal_server_error(s); | |
| 887 return; | |
| 888 } | |
| 889 | |
| 890 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { | |
| 891 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 892 "client sent invalid base64 encoding " | |
| 893 "in AUTH LOGIN command"); | |
| 894 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 895 break; | |
| 896 } | |
| 897 | |
| 898 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 899 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 900 "pop3 auth login password: \"%V\"", &s->passwd); | |
| 901 #endif | |
| 902 | |
| 903 ngx_mail_do_auth(s); | |
| 904 return; | |
| 905 | |
| 906 case ngx_pop3_auth_plain: | |
| 907 arg = s->args.elts; | |
| 908 | |
| 909 rc = ngx_mail_decode_auth_plain(s, &arg[0]); | |
| 910 | |
| 911 if (rc == NGX_OK) { | |
| 912 ngx_mail_do_auth(s); | |
| 913 return; | |
| 914 } | |
| 915 | |
| 916 if (rc == NGX_ERROR) { | |
| 917 ngx_mail_session_internal_server_error(s); | |
| 918 return; | |
| 919 } | |
| 920 | |
| 921 /* rc == NGX_MAIL_PARSE_INVALID_COMMAND */ | |
| 922 | |
| 923 break; | |
| 924 | |
| 925 case ngx_pop3_auth_cram_md5: | |
| 926 arg = s->args.elts; | |
| 927 | |
| 928 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 929 "pop3 auth cram-md5: \"%V\"", &arg[0]); | |
| 930 | |
| 931 s->login.data = ngx_palloc(c->pool, | |
| 932 ngx_base64_decoded_length(arg[0].len)); | |
| 933 if (s->login.data == NULL){ | |
| 934 ngx_mail_session_internal_server_error(s); | |
| 935 return; | |
| 936 } | |
| 937 | |
| 938 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { | |
| 939 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 940 "client sent invalid base64 encoding " | |
| 941 "in AUTH CRAM-MD5 command"); | |
| 942 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 943 break; | |
| 944 } | |
| 945 | |
| 946 p = s->login.data; | |
| 947 last = p + s->login.len; | |
| 948 | |
| 949 while (p < last) { | |
| 950 if (*p++ == ' ') { | |
| 951 s->login.len = p - s->login.data - 1; | |
| 952 s->passwd.len = last - p; | |
| 953 s->passwd.data = p; | |
| 954 break; | |
| 955 } | |
| 956 } | |
| 957 | |
| 958 if (s->passwd.len != 32) { | |
| 959 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 960 "client sent invalid CRAM-MD5 hash " | |
| 961 "in AUTH CRAM-MD5 command"); | |
| 962 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 963 break; | |
| 964 } | |
| 965 | |
| 966 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 967 "pop3 auth cram-md5: \"%V\" \"%V\"", | |
| 968 &s->login, &s->passwd); | |
| 969 | |
| 970 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; | |
| 971 | |
| 972 ngx_mail_do_auth(s); | |
| 973 return; | |
| 974 } | |
| 975 } | |
| 976 | |
| 977 if (rc == NGX_MAIL_PARSE_INVALID_COMMAND) { | |
| 978 s->mail_state = ngx_pop3_start; | |
| 979 s->state = 0; | |
| 980 text = pop3_invalid_command; | |
| 981 size = sizeof(pop3_invalid_command) - 1; | |
| 982 } | |
| 983 | |
| 984 s->args.nelts = 0; | |
| 985 s->buffer->pos = s->buffer->start; | |
| 986 s->buffer->last = s->buffer->start; | |
| 987 | |
| 988 if (s->state) { | |
| 989 s->arg_start = s->buffer->start; | |
| 990 } | |
| 991 | |
| 992 s->out.data = text; | |
| 993 s->out.len = size; | |
| 994 | |
| 995 ngx_mail_send(c->write); | |
| 996 } | |
| 997 | |
| 998 | |
| 999 void | |
| 1000 ngx_imap_auth_state(ngx_event_t *rev) | |
| 1001 { | |
| 1002 u_char *p, *last, *text, *dst, *src, *end; | |
| 1003 ssize_t text_len, last_len; | |
|
398
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1004 ngx_str_t *arg, salt; |
| 290 | 1005 ngx_int_t rc; |
| 1006 ngx_uint_t tag, i; | |
| 1007 ngx_connection_t *c; | |
| 1008 ngx_mail_session_t *s; | |
| 1009 ngx_mail_core_srv_conf_t *cscf; | |
| 1010 #if (NGX_MAIL_SSL) | |
| 1011 ngx_mail_ssl_conf_t *sslcf; | |
| 1012 #endif | |
| 1013 | |
| 1014 c = rev->data; | |
| 1015 s = c->data; | |
| 1016 | |
| 1017 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "imap auth state"); | |
| 1018 | |
| 1019 if (rev->timedout) { | |
| 1020 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 1021 c->timedout = 1; | |
| 1022 ngx_mail_close_connection(c); | |
| 1023 return; | |
| 1024 } | |
| 1025 | |
| 1026 if (s->out.len) { | |
| 1027 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "imap send handler busy"); | |
| 1028 s->blocked = 1; | |
| 1029 return; | |
| 1030 } | |
| 1031 | |
| 1032 s->blocked = 0; | |
| 1033 | |
| 1034 rc = ngx_mail_read_command(s); | |
| 1035 | |
| 1036 if (rc == NGX_AGAIN || rc == NGX_ERROR) { | |
| 1037 return; | |
| 1038 } | |
| 1039 | |
| 1040 tag = 1; | |
| 1041 | |
| 1042 text = NULL; | |
| 1043 text_len = 0; | |
| 1044 | |
| 1045 last = imap_ok; | |
| 1046 last_len = sizeof(imap_ok) - 1; | |
| 1047 | |
| 1048 if (rc == NGX_OK) { | |
| 1049 | |
| 1050 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, "imap auth command: %i", | |
| 1051 s->command); | |
| 1052 | |
| 1053 if (s->backslash) { | |
| 1054 | |
| 1055 arg = s->args.elts; | |
| 1056 | |
| 1057 for (i = 0; i < s->args.nelts; i++) { | |
| 1058 dst = arg[i].data; | |
| 1059 end = dst + arg[i].len; | |
| 1060 | |
| 1061 for (src = dst; src < end; dst++) { | |
| 1062 *dst = *src; | |
| 1063 if (*src++ == '\\') { | |
| 1064 *dst = *src++; | |
| 1065 } | |
| 1066 } | |
| 1067 | |
| 1068 arg[i].len = dst - arg[i].data; | |
| 1069 } | |
| 1070 | |
| 1071 s->backslash = 0; | |
| 1072 } | |
| 1073 | |
|
398
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1074 switch (s->mail_state) { |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1075 |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1076 case ngx_imap_start: |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1077 |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1078 switch (s->command) { |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1079 |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1080 case NGX_IMAP_LOGIN: |
| 290 | 1081 |
| 1082 #if (NGX_MAIL_SSL) | |
| 1083 | |
|
398
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1084 if (c->ssl == NULL) { |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1085 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1086 |
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1087 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
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1088 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
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1089 break; |
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1090 } |
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1091 } |
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1092 #endif |
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1093 |
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1094 arg = s->args.elts; |
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1095 |
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1096 if (s->args.nelts == 2 && arg[0].len) { |
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1097 |
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|
1098 s->login.len = arg[0].len; |
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|
1099 s->login.data = ngx_palloc(c->pool, s->login.len); |
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1100 if (s->login.data == NULL) { |
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1101 ngx_mail_session_internal_server_error(s); |
|
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|
1102 return; |
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1103 } |
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1104 |
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|
1105 ngx_memcpy(s->login.data, arg[0].data, s->login.len); |
|
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1106 |
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|
1107 s->passwd.len = arg[1].len; |
|
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|
1108 s->passwd.data = ngx_palloc(c->pool, s->passwd.len); |
|
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|
1109 if (s->passwd.data == NULL) { |
|
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|
1110 ngx_mail_session_internal_server_error(s); |
|
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|
1111 return; |
|
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1112 } |
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|
1113 |
|
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|
1114 ngx_memcpy(s->passwd.data, arg[1].data, s->passwd.len); |
|
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|
1115 |
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|
1116 #if (NGX_DEBUG_MAIL_PASSWD) |
|
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|
1117 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
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|
1118 "imap login:\"%V\" passwd:\"%V\"", |
|
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|
1119 &s->login, &s->passwd); |
|
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|
1120 #else |
|
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|
1121 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
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|
1122 "imap login:\"%V\"", &s->login); |
|
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|
1123 #endif |
|
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|
1124 |
|
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diff
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|
1125 ngx_mail_do_auth(s); |
|
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|
1126 return; |
|
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|
1127 } |
|
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|
1128 |
|
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|
1129 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
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diff
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|
1130 break; |
|
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diff
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|
1131 |
|
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diff
changeset
|
1132 case NGX_IMAP_AUTHENTICATE: |
|
f9e6413396d4
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diff
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|
1133 |
|
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diff
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|
1134 #if (NGX_MAIL_SSL) |
|
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Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
1135 |
|
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diff
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|
1136 if (c->ssl == NULL) { |
|
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|
1137 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1138 |
|
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diff
changeset
|
1139 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
1140 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
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diff
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|
1141 break; |
|
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396
diff
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|
1142 } |
|
f9e6413396d4
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396
diff
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|
1143 } |
|
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1144 #endif |
|
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1145 |
|
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396
diff
changeset
|
1146 if (s->args.nelts != 1) { |
| 290 | 1147 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
| 1148 break; | |
| 1149 } | |
|
398
f9e6413396d4
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|
1150 |
|
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diff
changeset
|
1151 arg = s->args.elts; |
|
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diff
changeset
|
1152 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1153 if (arg[0].len == 5) { |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1154 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1155 if (ngx_strncasecmp(arg[0].data, (u_char *) "LOGIN", 5) |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1156 == 0) |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1157 { |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1158 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1159 s->mail_state = ngx_imap_auth_login_username; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1160 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1161 last_len = sizeof(pop3_username) - 1; |
|
f9e6413396d4
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diff
changeset
|
1162 last = pop3_username; |
|
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diff
changeset
|
1163 tag = 0; |
|
f9e6413396d4
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diff
changeset
|
1164 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1165 break; |
|
f9e6413396d4
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diff
changeset
|
1166 |
|
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396
diff
changeset
|
1167 } else if (ngx_strncasecmp(arg[0].data, (u_char *) "PLAIN", |
|
f9e6413396d4
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diff
changeset
|
1168 5) |
|
f9e6413396d4
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396
diff
changeset
|
1169 == 0) |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1170 { |
|
f9e6413396d4
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396
diff
changeset
|
1171 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1172 s->mail_state = ngx_imap_auth_plain; |
|
f9e6413396d4
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diff
changeset
|
1173 |
|
f9e6413396d4
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diff
changeset
|
1174 last_len = sizeof(pop3_next) - 1; |
|
f9e6413396d4
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diff
changeset
|
1175 last = pop3_next; |
|
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diff
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|
1176 tag = 0; |
|
f9e6413396d4
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396
diff
changeset
|
1177 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1178 break; |
|
f9e6413396d4
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396
diff
changeset
|
1179 } |
|
f9e6413396d4
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396
diff
changeset
|
1180 |
|
f9e6413396d4
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396
diff
changeset
|
1181 } else if (arg[0].len == 8 |
|
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diff
changeset
|
1182 && ngx_strncasecmp(arg[0].data, |
|
f9e6413396d4
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diff
changeset
|
1183 (u_char *) "CRAM-MD5", 8) |
|
f9e6413396d4
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diff
changeset
|
1184 == 0) |
|
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396
diff
changeset
|
1185 { |
|
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changeset
|
1186 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
|
f9e6413396d4
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396
diff
changeset
|
1187 |
|
f9e6413396d4
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parents:
396
diff
changeset
|
1188 if (!(cscf->imap_auth_methods |
|
f9e6413396d4
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396
diff
changeset
|
1189 & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) |
|
f9e6413396d4
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diff
changeset
|
1190 || s->args.nelts != 1) |
|
f9e6413396d4
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396
diff
changeset
|
1191 { |
|
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changeset
|
1192 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1193 break; |
|
f9e6413396d4
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diff
changeset
|
1194 } |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1195 |
|
f9e6413396d4
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parents:
396
diff
changeset
|
1196 s->mail_state = ngx_imap_auth_cram_md5; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1197 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1198 last = ngx_palloc(c->pool, |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1199 sizeof("+ " CRLF) - 1 |
|
f9e6413396d4
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|
1200 + ngx_base64_encoded_length(s->salt.len)); |
|
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diff
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|
1201 if (last == NULL) { |
|
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diff
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|
1202 ngx_mail_session_internal_server_error(s); |
|
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diff
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|
1203 return; |
|
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diff
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|
1204 } |
|
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396
diff
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|
1205 |
|
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diff
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|
1206 last[0] = '+'; last[1]= ' '; |
|
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|
1207 salt.data = &last[2]; |
|
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diff
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|
1208 s->salt.len -= 2; |
|
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diff
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|
1209 |
|
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396
diff
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|
1210 ngx_encode_base64(&salt, &s->salt); |
|
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|
1211 |
|
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|
1212 s->salt.len += 2; |
|
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diff
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|
1213 last_len = 2 + salt.len; |
|
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diff
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|
1214 last[last_len++] = CR; last[last_len++] = LF; |
|
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diff
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|
1215 tag = 0; |
|
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396
diff
changeset
|
1216 |
|
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396
diff
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|
1217 break; |
|
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diff
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|
1218 } |
|
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diff
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|
1219 |
|
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diff
changeset
|
1220 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
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diff
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|
1221 break; |
|
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diff
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|
1222 |
|
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diff
changeset
|
1223 case NGX_IMAP_CAPABILITY: |
|
f9e6413396d4
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396
diff
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|
1224 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1225 |
|
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diff
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|
1226 #if (NGX_MAIL_SSL) |
|
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diff
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|
1227 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1228 if (c->ssl == NULL) { |
|
f9e6413396d4
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396
diff
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|
1229 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1230 |
|
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396
diff
changeset
|
1231 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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396
diff
changeset
|
1232 text_len = cscf->imap_starttls_capability.len; |
|
f9e6413396d4
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396
diff
changeset
|
1233 text = cscf->imap_starttls_capability.data; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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396
diff
changeset
|
1234 break; |
|
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diff
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|
1235 } |
|
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diff
changeset
|
1236 |
|
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396
diff
changeset
|
1237 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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diff
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|
1238 text_len = cscf->imap_starttls_only_capability.len; |
|
f9e6413396d4
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diff
changeset
|
1239 text = cscf->imap_starttls_only_capability.data; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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diff
changeset
|
1240 break; |
|
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396
diff
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|
1241 } |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
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|
1242 } |
| 290 | 1243 #endif |
| 1244 | |
|
398
f9e6413396d4
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diff
changeset
|
1245 text_len = cscf->imap_capability.len; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1246 text = cscf->imap_capability.data; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
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|
1247 break; |
|
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1248 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1249 case NGX_IMAP_LOGOUT: |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1250 s->quit = 1; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1251 text = imap_bye; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1252 text_len = sizeof(imap_bye) - 1; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1253 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1254 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1255 case NGX_IMAP_NOOP: |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1256 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1257 |
|
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1258 #if (NGX_MAIL_SSL) |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1259 |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1260 case NGX_IMAP_STARTTLS: |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1261 if (c->ssl == NULL) { |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
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|
1262 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
|
f9e6413396d4
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396
diff
changeset
|
1263 if (sslcf->starttls) { |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1264 c->read->handler = ngx_mail_starttls_handler; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1265 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1266 } |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1267 } |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1268 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1269 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1270 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1271 #endif |
|
f9e6413396d4
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diff
changeset
|
1272 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1273 default: |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1274 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1275 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1276 } |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1277 |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1278 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1279 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1280 case ngx_imap_auth_login_username: |
| 290 | 1281 arg = s->args.elts; |
|
398
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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diff
changeset
|
1282 s->mail_state = ngx_imap_auth_login_password; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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396
diff
changeset
|
1283 |
|
f9e6413396d4
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diff
changeset
|
1284 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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396
diff
changeset
|
1285 "imap auth login username: \"%V\"", &arg[0]); |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1286 |
|
f9e6413396d4
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diff
changeset
|
1287 s->login.data = ngx_palloc(c->pool, |
|
f9e6413396d4
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diff
changeset
|
1288 ngx_base64_decoded_length(arg[0].len)); |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1289 if (s->login.data == NULL){ |
|
f9e6413396d4
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diff
changeset
|
1290 ngx_mail_session_internal_server_error(s); |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1291 return; |
|
f9e6413396d4
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396
diff
changeset
|
1292 } |
|
f9e6413396d4
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396
diff
changeset
|
1293 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1294 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1295 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
|
f9e6413396d4
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396
diff
changeset
|
1296 "client sent invalid base64 encoding " |
|
f9e6413396d4
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parents:
396
diff
changeset
|
1297 "in AUTH LOGIN command"); |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
1298 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1299 break; |
|
f9e6413396d4
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diff
changeset
|
1300 } |
|
f9e6413396d4
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diff
changeset
|
1301 |
|
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diff
changeset
|
1302 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
f9e6413396d4
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diff
changeset
|
1303 "imap auth login username: \"%V\"", &s->login); |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
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396
diff
changeset
|
1304 |
|
f9e6413396d4
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diff
changeset
|
1305 last_len = sizeof(pop3_password) - 1; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1306 last = pop3_password; |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1307 tag = 0; |
|
f9e6413396d4
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parents:
396
diff
changeset
|
1308 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1309 break; |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1310 |
|
f9e6413396d4
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Maxim Dounin <mdounin@mdounin.ru>
parents:
396
diff
changeset
|
1311 case ngx_imap_auth_login_password: |
|
f9e6413396d4
Mail: IMAP AUTHENTICATE command support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
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diff
changeset
|
1312 arg = s->args.elts; |
| 290 | 1313 |
| 1314 #if (NGX_DEBUG_MAIL_PASSWD) | |
|
398
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1315 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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|
1316 "imap auth login password: \"%V\"", &arg[0]); |
| 290 | 1317 #endif |
| 1318 | |
|
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|
1319 s->passwd.data = ngx_palloc(c->pool, |
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1320 ngx_base64_decoded_length(arg[0].len)); |
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1321 if (s->passwd.data == NULL){ |
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|
1322 ngx_mail_session_internal_server_error(s); |
|
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|
1323 return; |
|
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|
1324 } |
|
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|
1325 |
|
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|
1326 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { |
|
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|
1327 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
|
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|
1328 "client sent invalid base64 encoding " |
|
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|
1329 "in AUTH LOGIN command"); |
|
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|
1330 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
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|
1331 break; |
|
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|
1332 } |
|
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|
1333 |
|
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|
1334 #if (NGX_DEBUG_MAIL_PASSWD) |
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|
1335 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
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|
1336 "imap auth login password: \"%V\"", &s->passwd); |
|
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|
1337 #endif |
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|
1338 |
|
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|
1339 ngx_mail_do_auth(s); |
|
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|
1340 return; |
|
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|
1341 |
|
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|
1342 case ngx_imap_auth_plain: |
|
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|
1343 arg = s->args.elts; |
|
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|
1344 |
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|
1345 rc = ngx_mail_decode_auth_plain(s, &arg[0]); |
|
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|
1346 |
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|
1347 if (rc == NGX_OK) { |
| 290 | 1348 ngx_mail_do_auth(s); |
| 1349 return; | |
| 1350 } | |
| 1351 | |
|
398
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|
1352 if (rc == NGX_ERROR) { |
|
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|
1353 ngx_mail_session_internal_server_error(s); |
|
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|
1354 return; |
|
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|
1355 } |
|
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|
1356 |
|
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|
1357 /* rc == NGX_MAIL_PARSE_INVALID_COMMAND */ |
|
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|
1358 |
| 290 | 1359 break; |
| 1360 | |
|
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|
1361 case ngx_imap_auth_cram_md5: |
|
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|
1362 arg = s->args.elts; |
|
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|
1363 |
|
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|
1364 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
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|
1365 "imap auth cram-md5: \"%V\"", &arg[0]); |
|
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|
1366 |
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|
1367 s->login.data = ngx_palloc(c->pool, |
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|
1368 ngx_base64_decoded_length(arg[0].len)); |
|
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|
1369 if (s->login.data == NULL){ |
|
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|
1370 ngx_mail_session_internal_server_error(s); |
|
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|
1371 return; |
|
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|
1372 } |
|
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|
1373 |
|
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|
1374 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
|
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|
1375 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
|
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|
1376 "client sent invalid base64 encoding " |
|
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|
1377 "in AUTH CRAM-MD5 command"); |
|
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|
1378 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
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|
1379 break; |
|
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|
1380 } |
|
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|
1381 |
|
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|
1382 p = s->login.data; |
|
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|
1383 last = p + s->login.len; |
|
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|
1384 |
|
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|
1385 while (p < last) { |
|
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|
1386 if (*p++ == ' ') { |
|
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diff
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|
1387 s->login.len = p - s->login.data - 1; |
|
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|
1388 s->passwd.len = last - p; |
|
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|
1389 s->passwd.data = p; |
| 290 | 1390 break; |
| 1391 } | |
| 1392 } | |
|
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|
1393 |
|
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|
1394 if (s->passwd.len != 32) { |
|
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|
1395 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
|
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|
1396 "client sent invalid CRAM-MD5 hash " |
|
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|
1397 "in AUTH CRAM-MD5 command"); |
|
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|
1398 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
|
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|
1399 break; |
| 290 | 1400 } |
| 1401 | |
|
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|
1402 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
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|
1403 "imap auth cram-md5: \"%V\" \"%V\"", |
|
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|
1404 &s->login, &s->passwd); |
|
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|
1405 |
|
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|
1406 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; |
|
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|
1407 |
|
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|
1408 ngx_mail_do_auth(s); |
|
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|
1409 return; |
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|
1410 |
| 290 | 1411 } |
| 1412 | |
| 1413 } else if (rc == NGX_IMAP_NEXT) { | |
| 1414 last = imap_next; | |
| 1415 last_len = sizeof(imap_next) - 1; | |
| 1416 tag = 0; | |
| 1417 } | |
| 1418 | |
| 1419 if (rc == NGX_MAIL_PARSE_INVALID_COMMAND) { | |
|
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|
1420 s->mail_state = ngx_imap_start; |
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|
1421 s->state = 0; |
| 290 | 1422 last = imap_invalid_command; |
| 1423 last_len = sizeof(imap_invalid_command) - 1; | |
| 1424 } | |
| 1425 | |
| 1426 if (tag) { | |
| 1427 if (s->tag.len == 0) { | |
| 1428 s->tag.len = sizeof(imap_star) - 1; | |
| 1429 s->tag.data = (u_char *) imap_star; | |
| 1430 } | |
| 1431 | |
| 1432 if (s->tagged_line.len < s->tag.len + text_len + last_len) { | |
| 1433 s->tagged_line.len = s->tag.len + text_len + last_len; | |
| 1434 s->tagged_line.data = ngx_palloc(c->pool, s->tagged_line.len); | |
| 1435 if (s->tagged_line.data == NULL) { | |
| 1436 ngx_mail_close_connection(c); | |
| 1437 return; | |
| 1438 } | |
| 1439 } | |
| 1440 | |
| 1441 s->out.data = s->tagged_line.data; | |
| 1442 s->out.len = s->tag.len + text_len + last_len; | |
| 1443 | |
| 1444 p = s->out.data; | |
| 1445 | |
| 1446 if (text) { | |
| 1447 p = ngx_cpymem(p, text, text_len); | |
| 1448 } | |
| 1449 p = ngx_cpymem(p, s->tag.data, s->tag.len); | |
| 1450 ngx_memcpy(p, last, last_len); | |
| 1451 | |
| 1452 | |
| 1453 } else { | |
| 1454 s->out.data = last; | |
| 1455 s->out.len = last_len; | |
| 1456 } | |
| 1457 | |
| 1458 if (rc != NGX_IMAP_NEXT) { | |
| 1459 s->args.nelts = 0; | |
|
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|
1460 |
|
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|
1461 if (s->state) { |
|
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|
1462 /* preserve tag */ |
|
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|
1463 s->arg_start = s->buffer->start + s->tag.len; |
|
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|
1464 s->buffer->pos = s->arg_start; |
|
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|
1465 s->buffer->last = s->arg_start; |
|
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|
1466 } else { |
|
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|
1467 s->buffer->pos = s->buffer->start; |
|
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|
1468 s->buffer->last = s->buffer->start; |
|
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|
1469 s->tag.len = 0; |
|
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|
1470 } |
| 290 | 1471 } |
| 1472 | |
| 1473 ngx_mail_send(c->write); | |
| 1474 } | |
| 1475 | |
| 1476 | |
| 1477 void | |
| 1478 ngx_smtp_auth_state(ngx_event_t *rev) | |
| 1479 { | |
| 1480 u_char *p, *last, *text, ch; | |
| 1481 ssize_t size; | |
| 1482 ngx_int_t rc; | |
| 1483 ngx_str_t *arg, salt, l; | |
| 1484 ngx_uint_t i; | |
| 1485 ngx_connection_t *c; | |
| 1486 ngx_mail_session_t *s; | |
| 1487 ngx_mail_core_srv_conf_t *cscf; | |
|
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1488 #if (NGX_MAIL_SSL) |
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1489 ngx_mail_ssl_conf_t *sslcf; |
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1490 #endif |
| 290 | 1491 |
| 1492 c = rev->data; | |
| 1493 s = c->data; | |
| 1494 | |
| 1495 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp auth state"); | |
| 1496 | |
| 1497 if (rev->timedout) { | |
| 1498 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 1499 c->timedout = 1; | |
| 1500 ngx_mail_close_connection(c); | |
| 1501 return; | |
| 1502 } | |
| 1503 | |
| 1504 if (s->out.len) { | |
| 1505 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp send handler busy"); | |
| 1506 s->blocked = 1; | |
| 1507 return; | |
| 1508 } | |
| 1509 | |
| 1510 s->blocked = 0; | |
| 1511 | |
| 1512 rc = ngx_mail_read_command(s); | |
| 1513 | |
| 1514 if (rc == NGX_AGAIN || rc == NGX_ERROR) { | |
| 1515 return; | |
| 1516 } | |
| 1517 | |
| 1518 text = NULL; | |
| 1519 size = 0; | |
| 1520 | |
| 1521 if (rc == NGX_OK) { | |
| 1522 switch (s->mail_state) { | |
| 1523 | |
| 1524 case ngx_smtp_start: | |
| 1525 | |
| 1526 switch (s->command) { | |
| 1527 | |
| 1528 case NGX_SMTP_HELO: | |
| 1529 case NGX_SMTP_EHLO: | |
| 1530 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); | |
| 1531 | |
| 1532 if (s->args.nelts != 1) { | |
| 1533 text = smtp_invalid_argument; | |
| 1534 size = sizeof(smtp_invalid_argument) - 1; | |
| 1535 s->state = 0; | |
| 1536 break; | |
| 1537 } | |
| 1538 | |
| 1539 arg = s->args.elts; | |
| 1540 | |
| 1541 s->smtp_helo.len = arg[0].len; | |
| 1542 | |
| 1543 s->smtp_helo.data = ngx_palloc(c->pool, arg[0].len); | |
| 1544 if (s->smtp_helo.data == NULL) { | |
| 1545 ngx_mail_session_internal_server_error(s); | |
| 1546 return; | |
| 1547 } | |
| 1548 | |
| 1549 ngx_memcpy(s->smtp_helo.data, arg[0].data, arg[0].len); | |
| 1550 | |
| 1551 if (s->command == NGX_SMTP_HELO) { | |
| 1552 size = cscf->smtp_server_name.len; | |
| 1553 text = cscf->smtp_server_name.data; | |
| 1554 | |
| 1555 } else { | |
| 1556 s->esmtp = 1; | |
|
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1557 |
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1558 #if (NGX_MAIL_SSL) |
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1559 |
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1560 if (c->ssl == NULL) { |
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1561 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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1562 |
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1563 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { |
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1564 size = cscf->smtp_starttls_capability.len; |
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1565 text = cscf->smtp_starttls_capability.data; |
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1566 break; |
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1567 } |
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1568 |
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1569 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
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1570 size = cscf->smtp_starttls_only_capability.len; |
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1571 text = cscf->smtp_starttls_only_capability.data; |
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1572 break; |
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1573 } |
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1574 } |
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1575 #endif |
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1576 |
| 290 | 1577 size = cscf->smtp_capability.len; |
| 1578 text = cscf->smtp_capability.data; | |
| 1579 } | |
| 1580 | |
| 1581 break; | |
| 1582 | |
| 1583 case NGX_SMTP_AUTH: | |
| 1584 | |
|
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1585 #if (NGX_MAIL_SSL) |
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1586 |
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1587 if (c->ssl == NULL) { |
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1588 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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1589 |
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1590 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
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1591 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
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1592 break; |
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1593 } |
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1594 } |
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1595 #endif |
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1596 |
| 290 | 1597 if (s->args.nelts == 0) { |
| 1598 text = smtp_invalid_argument; | |
| 1599 size = sizeof(smtp_invalid_argument) - 1; | |
| 1600 s->state = 0; | |
| 1601 break; | |
| 1602 } | |
| 1603 | |
| 1604 arg = s->args.elts; | |
| 1605 | |
| 1606 if (arg[0].len == 5) { | |
| 1607 | |
| 1608 if (ngx_strncasecmp(arg[0].data, (u_char *) "LOGIN", 5) | |
| 1609 == 0) | |
| 1610 { | |
| 1611 | |
| 1612 if (s->args.nelts != 1) { | |
| 1613 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1614 break; | |
| 1615 } | |
| 1616 | |
| 1617 s->mail_state = ngx_smtp_auth_login_username; | |
| 1618 | |
| 1619 size = sizeof(smtp_username) - 1; | |
| 1620 text = smtp_username; | |
| 1621 | |
| 1622 break; | |
| 1623 | |
| 1624 } else if (ngx_strncasecmp(arg[0].data, (u_char *) "PLAIN", | |
| 1625 5) | |
| 1626 == 0) | |
| 1627 { | |
| 1628 if (s->args.nelts == 1) { | |
| 1629 s->mail_state = ngx_smtp_auth_plain; | |
| 1630 | |
| 1631 size = sizeof(smtp_next) - 1; | |
| 1632 text = smtp_next; | |
| 1633 | |
| 1634 break; | |
| 1635 } | |
| 1636 | |
| 1637 if (s->args.nelts == 2) { | |
| 1638 | |
| 1639 rc = ngx_mail_decode_auth_plain(s, &arg[1]); | |
| 1640 | |
| 1641 if (rc == NGX_OK) { | |
| 1642 ngx_mail_do_auth(s); | |
| 1643 return; | |
| 1644 } | |
| 1645 | |
| 1646 if (rc == NGX_ERROR) { | |
| 1647 ngx_mail_session_internal_server_error(s); | |
| 1648 return; | |
| 1649 } | |
| 1650 | |
| 1651 /* rc == NGX_MAIL_PARSE_INVALID_COMMAND */ | |
| 1652 | |
| 1653 break; | |
| 1654 } | |
| 1655 | |
| 1656 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1657 break; | |
| 1658 } | |
| 1659 | |
| 1660 } else if (arg[0].len == 8 | |
| 1661 && ngx_strncasecmp(arg[0].data, | |
| 1662 (u_char *) "CRAM-MD5", 8) | |
| 1663 == 0) | |
| 1664 { | |
| 318 | 1665 cscf = ngx_mail_get_module_srv_conf(s, |
| 1666 ngx_mail_core_module); | |
| 1667 | |
| 1668 if (!(cscf->smtp_auth_methods | |
| 1669 & NGX_MAIL_AUTH_CRAM_MD5_ENABLED) | |
| 1670 || s->args.nelts != 1) | |
| 1671 { | |
| 290 | 1672 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
| 1673 break; | |
| 1674 } | |
| 1675 | |
| 1676 s->mail_state = ngx_smtp_auth_cram_md5; | |
| 1677 | |
| 1678 text = ngx_palloc(c->pool, | |
| 1679 sizeof("334 " CRLF) - 1 | |
| 1680 + ngx_base64_encoded_length(s->salt.len)); | |
| 1681 if (text == NULL) { | |
| 1682 ngx_mail_session_internal_server_error(s); | |
| 1683 return; | |
| 1684 } | |
| 1685 | |
| 1686 text[0] = '3'; text[1]= '3'; text[2] = '4'; text[3]= ' '; | |
| 1687 salt.data = &text[4]; | |
| 1688 s->salt.len -= 2; | |
| 1689 | |
| 1690 ngx_encode_base64(&salt, &s->salt); | |
| 1691 | |
| 1692 s->salt.len += 2; | |
| 1693 size = 4 + salt.len; | |
| 1694 text[size++] = CR; text[size++] = LF; | |
| 1695 | |
| 1696 break; | |
| 1697 } | |
| 1698 | |
| 1699 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1700 break; | |
| 1701 | |
| 1702 case NGX_SMTP_QUIT: | |
| 1703 s->quit = 1; | |
| 1704 text = smtp_bye; | |
| 1705 size = sizeof(smtp_bye) - 1; | |
| 1706 break; | |
| 1707 | |
| 1708 case NGX_SMTP_MAIL: | |
| 1709 | |
| 1710 if (s->connection->log->log_level >= NGX_LOG_INFO) { | |
| 296 | 1711 l.len = s->buffer->last - s->buffer->start; |
| 1712 l.data = s->buffer->start; | |
| 290 | 1713 |
| 296 | 1714 for (i = 0; i < l.len; i++) { |
| 1715 ch = l.data[i]; | |
| 290 | 1716 |
| 296 | 1717 if (ch != CR && ch != LF) { |
| 1718 continue; | |
| 1719 } | |
| 290 | 1720 |
| 296 | 1721 l.data[i] = ' '; |
| 1722 } | |
| 290 | 1723 |
| 296 | 1724 while (i) { |
| 1725 if (l.data[i - 1] != ' ') { | |
| 1726 break; | |
| 1727 } | |
| 290 | 1728 |
| 296 | 1729 i--; |
| 1730 } | |
| 290 | 1731 |
| 296 | 1732 l.len = i; |
| 290 | 1733 |
| 296 | 1734 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, |
| 1735 "client was rejected: \"%V\"", &l); | |
| 290 | 1736 } |
| 1737 | |
| 1738 text = smtp_auth_required; | |
| 1739 size = sizeof(smtp_auth_required) - 1; | |
| 1740 break; | |
| 1741 | |
| 1742 case NGX_SMTP_NOOP: | |
| 1743 case NGX_SMTP_RSET: | |
| 1744 text = smtp_ok; | |
| 1745 size = sizeof(smtp_ok) - 1; | |
| 1746 break; | |
| 394 | 1747 |
|
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1748 #if (NGX_MAIL_SSL) |
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1749 |
|
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1750 case NGX_SMTP_STARTTLS: |
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1751 if (c->ssl == NULL) { |
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1752 sslcf = ngx_mail_get_module_srv_conf(s, |
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1753 ngx_mail_ssl_module); |
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1754 if (sslcf->starttls) { |
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1755 c->read->handler = ngx_mail_starttls_handler; |
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1756 |
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1757 /* |
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1758 * RFC3207 requires us to discard any knowledge obtained |
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1759 * from client before STARTTLS. |
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1760 */ |
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1761 |
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1762 s->smtp_helo.len = 0; |
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1763 s->smtp_helo.data = NULL; |
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1764 |
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1765 text = smtp_ok; |
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1766 size = sizeof(smtp_ok) - 1; |
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1767 |
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1768 break; |
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1769 } |
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1770 } |
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1771 |
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1772 rc = NGX_MAIL_PARSE_INVALID_COMMAND; |
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1773 break; |
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1774 #endif |
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1775 |
| 394 | 1776 default: |
| 1777 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1778 break; | |
| 290 | 1779 } |
| 1780 | |
| 1781 break; | |
| 1782 | |
| 1783 case ngx_smtp_auth_login_username: | |
| 1784 arg = s->args.elts; | |
| 1785 s->mail_state = ngx_smtp_auth_login_password; | |
| 1786 | |
| 1787 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 1788 "smtp auth login username: \"%V\"", &arg[0]); | |
| 1789 | |
| 1790 s->login.data = ngx_palloc(c->pool, | |
| 1791 ngx_base64_decoded_length(arg[0].len)); | |
| 1792 if (s->login.data == NULL){ | |
| 1793 ngx_mail_session_internal_server_error(s); | |
| 1794 return; | |
| 1795 } | |
| 1796 | |
| 1797 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { | |
| 1798 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 1799 "client sent invalid base64 encoding " | |
| 1800 "in AUTH LOGIN command"); | |
| 1801 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1802 break; | |
| 1803 } | |
| 1804 | |
| 1805 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 1806 "smtp auth login username: \"%V\"", &s->login); | |
| 1807 | |
| 1808 size = sizeof(smtp_password) - 1; | |
| 1809 text = smtp_password; | |
| 1810 | |
| 1811 break; | |
| 1812 | |
| 1813 case ngx_smtp_auth_login_password: | |
| 1814 arg = s->args.elts; | |
| 1815 | |
| 1816 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 1817 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 1818 "smtp auth login password: \"%V\"", &arg[0]); | |
| 1819 #endif | |
| 1820 | |
| 1821 s->passwd.data = ngx_palloc(c->pool, | |
| 1822 ngx_base64_decoded_length(arg[0].len)); | |
| 1823 if (s->passwd.data == NULL){ | |
| 1824 ngx_mail_session_internal_server_error(s); | |
| 1825 return; | |
| 1826 } | |
| 1827 | |
| 1828 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { | |
| 1829 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 1830 "client sent invalid base64 encoding " | |
| 1831 "in AUTH LOGIN command"); | |
| 1832 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1833 break; | |
| 1834 } | |
| 1835 | |
| 1836 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 1837 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 1838 "smtp auth login password: \"%V\"", &s->passwd); | |
| 1839 #endif | |
| 1840 | |
| 1841 ngx_mail_do_auth(s); | |
| 1842 return; | |
| 1843 | |
| 1844 case ngx_smtp_auth_plain: | |
| 1845 arg = s->args.elts; | |
| 1846 | |
| 1847 rc = ngx_mail_decode_auth_plain(s, &arg[0]); | |
| 1848 | |
| 1849 if (rc == NGX_OK) { | |
| 1850 ngx_mail_do_auth(s); | |
| 1851 return; | |
| 1852 } | |
| 1853 | |
| 1854 if (rc == NGX_ERROR) { | |
| 1855 ngx_mail_session_internal_server_error(s); | |
| 1856 return; | |
| 1857 } | |
| 1858 | |
| 1859 /* rc == NGX_MAIL_PARSE_INVALID_COMMAND */ | |
| 1860 | |
| 1861 break; | |
| 1862 | |
| 1863 case ngx_smtp_auth_cram_md5: | |
| 1864 arg = s->args.elts; | |
| 1865 | |
| 1866 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 1867 "smtp auth cram-md5: \"%V\"", &arg[0]); | |
| 1868 | |
| 1869 s->login.data = ngx_palloc(c->pool, | |
| 1870 ngx_base64_decoded_length(arg[0].len)); | |
| 1871 if (s->login.data == NULL){ | |
| 1872 ngx_mail_session_internal_server_error(s); | |
| 1873 return; | |
| 1874 } | |
| 1875 | |
| 1876 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { | |
| 1877 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 1878 "client sent invalid base64 encoding " | |
| 1879 "in AUTH CRAM-MD5 command"); | |
| 1880 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1881 break; | |
| 1882 } | |
| 1883 | |
| 1884 p = s->login.data; | |
| 1885 last = p + s->login.len; | |
| 1886 | |
| 1887 while (p < last) { | |
| 1888 if (*p++ == ' ') { | |
| 1889 s->login.len = p - s->login.data - 1; | |
| 1890 s->passwd.len = last - p; | |
| 1891 s->passwd.data = p; | |
| 1892 break; | |
| 1893 } | |
| 1894 } | |
| 1895 | |
| 1896 if (s->passwd.len != 32) { | |
| 1897 ngx_log_error(NGX_LOG_INFO, c->log, 0, | |
| 1898 "client sent invalid CRAM-MD5 hash " | |
| 1899 "in AUTH CRAM-MD5 command"); | |
| 1900 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1901 break; | |
| 1902 } | |
| 1903 | |
| 1904 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 1905 "smtp auth cram-md5: \"%V\" \"%V\"", | |
| 1906 &s->login, &s->passwd); | |
| 1907 | |
| 1908 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; | |
| 1909 | |
| 1910 ngx_mail_do_auth(s); | |
| 1911 return; | |
| 1912 } | |
| 1913 } | |
| 1914 | |
| 1915 if (rc == NGX_MAIL_PARSE_INVALID_COMMAND) { | |
| 1916 s->mail_state = ngx_smtp_start; | |
| 1917 s->state = 0; | |
| 1918 text = smtp_invalid_command; | |
| 1919 size = sizeof(smtp_invalid_command) - 1; | |
| 1920 } | |
| 1921 | |
| 1922 s->args.nelts = 0; | |
| 1923 s->buffer->pos = s->buffer->start; | |
| 1924 s->buffer->last = s->buffer->start; | |
| 1925 | |
| 1926 if (s->state) { | |
| 1927 s->arg_start = s->buffer->start; | |
| 1928 } | |
| 1929 | |
| 1930 s->out.data = text; | |
| 1931 s->out.len = size; | |
| 1932 | |
| 1933 ngx_mail_send(c->write); | |
| 1934 } | |
| 1935 | |
| 1936 | |
| 1937 static ngx_int_t | |
| 1938 ngx_mail_decode_auth_plain(ngx_mail_session_t *s, ngx_str_t *encoded) | |
| 1939 { | |
| 1940 u_char *p, *last; | |
| 1941 ngx_str_t plain; | |
| 1942 | |
| 1943 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 1944 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, | |
| 1945 "mail auth plain: \"%V\"", encoded); | |
| 1946 #endif | |
| 1947 | |
| 1948 plain.data = ngx_palloc(s->connection->pool, | |
| 1949 ngx_base64_decoded_length(encoded->len)); | |
| 1950 if (plain.data == NULL){ | |
| 1951 return NGX_ERROR; | |
| 1952 } | |
| 1953 | |
| 1954 if (ngx_decode_base64(&plain, encoded) != NGX_OK) { | |
| 1955 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
| 1956 "client sent invalid base64 encoding " | |
| 1957 "in AUTH PLAIN command"); | |
| 1958 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1959 } | |
| 1960 | |
| 1961 p = plain.data; | |
| 1962 last = p + plain.len; | |
| 1963 | |
| 1964 while (p < last && *p++) { /* void */ } | |
| 1965 | |
| 1966 if (p == last) { | |
| 1967 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
| 1968 "client sent invalid login in AUTH PLAIN command"); | |
| 1969 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1970 } | |
| 1971 | |
| 1972 s->login.data = p; | |
| 1973 | |
| 1974 while (p < last && *p) { p++; } | |
| 1975 | |
| 1976 if (p == last) { | |
| 1977 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
| 1978 "client sent invalid password in AUTH PLAIN command"); | |
| 1979 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 1980 } | |
| 1981 | |
| 1982 s->login.len = p++ - s->login.data; | |
| 1983 | |
| 1984 s->passwd.len = last - p; | |
| 1985 s->passwd.data = p; | |
| 1986 | |
| 1987 #if (NGX_DEBUG_MAIL_PASSWD) | |
| 1988 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, s->connection->log, 0, | |
| 1989 "mail auth plain: \"%V\" \"%V\"", | |
| 1990 &s->login, &s->passwd); | |
| 1991 #endif | |
| 1992 | |
| 1993 return NGX_OK; | |
| 1994 } | |
| 1995 | |
| 1996 | |
| 1997 static void | |
| 1998 ngx_mail_do_auth(ngx_mail_session_t *s) | |
| 1999 { | |
| 2000 s->args.nelts = 0; | |
| 2001 s->buffer->pos = s->buffer->start; | |
| 2002 s->buffer->last = s->buffer->start; | |
| 2003 s->state = 0; | |
| 2004 | |
| 2005 if (s->connection->read->timer_set) { | |
| 2006 ngx_del_timer(s->connection->read); | |
| 2007 } | |
| 2008 | |
| 2009 s->login_attempt++; | |
| 2010 | |
| 2011 ngx_mail_auth_http_init(s); | |
| 2012 } | |
| 2013 | |
| 2014 | |
| 394 | 2015 ngx_int_t |
| 290 | 2016 ngx_mail_read_command(ngx_mail_session_t *s) |
| 2017 { | |
| 2018 ssize_t n; | |
| 2019 ngx_int_t rc; | |
| 2020 ngx_str_t l; | |
| 2021 | |
| 2022 n = s->connection->recv(s->connection, s->buffer->last, | |
| 2023 s->buffer->end - s->buffer->last); | |
| 2024 | |
| 2025 if (n == NGX_ERROR || n == 0) { | |
| 2026 ngx_mail_close_connection(s->connection); | |
| 2027 return NGX_ERROR; | |
| 2028 } | |
| 2029 | |
| 2030 if (n > 0) { | |
| 2031 s->buffer->last += n; | |
| 2032 } | |
| 2033 | |
| 2034 if (n == NGX_AGAIN) { | |
| 2035 if (ngx_handle_read_event(s->connection->read, 0) == NGX_ERROR) { | |
| 2036 ngx_mail_session_internal_server_error(s); | |
| 2037 return NGX_ERROR; | |
| 2038 } | |
| 2039 | |
| 2040 return NGX_AGAIN; | |
| 2041 } | |
| 2042 | |
| 2043 switch (s->protocol) { | |
| 2044 case NGX_MAIL_POP3_PROTOCOL: | |
| 2045 rc = ngx_pop3_parse_command(s); | |
| 2046 break; | |
| 2047 | |
| 2048 case NGX_MAIL_IMAP_PROTOCOL: | |
| 2049 rc = ngx_imap_parse_command(s); | |
| 2050 break; | |
| 2051 | |
| 2052 default: /* NGX_MAIL_SMTP_PROTOCOL */ | |
| 2053 rc = ngx_smtp_parse_command(s); | |
| 2054 break; | |
| 2055 } | |
| 2056 | |
| 2057 if (rc == NGX_AGAIN) { | |
| 2058 | |
| 2059 if (s->buffer->last < s->buffer->end) { | |
| 2060 return rc; | |
| 2061 } | |
| 2062 | |
| 2063 l.len = s->buffer->last - s->buffer->start; | |
| 2064 l.data = s->buffer->start; | |
| 2065 | |
| 2066 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, | |
| 2067 "client sent too long command \"%V\"", &l); | |
| 2068 | |
| 2069 s->quit = 1; | |
| 2070 | |
| 2071 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
| 2072 } | |
| 2073 | |
| 2074 if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) { | |
| 2075 return rc; | |
| 2076 } | |
| 2077 | |
| 2078 if (rc == NGX_ERROR) { | |
| 2079 ngx_mail_close_connection(s->connection); | |
| 2080 return NGX_ERROR; | |
| 2081 } | |
| 2082 | |
| 2083 return NGX_OK; | |
| 2084 } | |
| 2085 | |
| 2086 | |
| 2087 void | |
| 2088 ngx_mail_session_internal_server_error(ngx_mail_session_t *s) | |
| 2089 { | |
| 2090 s->out = internal_server_errors[s->protocol]; | |
| 2091 s->quit = 1; | |
| 2092 | |
| 2093 ngx_mail_send(s->connection->write); | |
| 2094 } | |
| 2095 | |
| 2096 | |
| 2097 void | |
| 2098 ngx_mail_close_connection(ngx_connection_t *c) | |
| 2099 { | |
| 2100 ngx_pool_t *pool; | |
| 2101 | |
| 2102 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, | |
| 2103 "close mail connection: %d", c->fd); | |
| 2104 | |
| 2105 #if (NGX_MAIL_SSL) | |
| 2106 | |
| 2107 if (c->ssl) { | |
| 2108 if (ngx_ssl_shutdown(c) == NGX_AGAIN) { | |
| 2109 c->ssl->handler = ngx_mail_close_connection; | |
| 2110 return; | |
| 2111 } | |
| 2112 } | |
| 2113 | |
| 2114 #endif | |
| 2115 | |
| 2116 c->destroyed = 1; | |
| 2117 | |
| 2118 pool = c->pool; | |
| 2119 | |
| 2120 ngx_close_connection(c); | |
| 2121 | |
| 2122 ngx_destroy_pool(pool); | |
| 2123 } | |
| 2124 | |
| 2125 | |
| 2126 static u_char * | |
| 2127 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) | |
| 2128 { | |
| 2129 u_char *p; | |
| 2130 ngx_mail_session_t *s; | |
| 2131 ngx_mail_log_ctx_t *ctx; | |
| 2132 | |
| 2133 if (log->action) { | |
| 2134 p = ngx_snprintf(buf, len, " while %s", log->action); | |
| 2135 len -= p - buf; | |
| 2136 buf = p; | |
| 2137 } | |
| 2138 | |
| 2139 ctx = log->data; | |
| 2140 | |
| 2141 p = ngx_snprintf(buf, len, ", client: %V", ctx->client); | |
| 2142 len -= p - buf; | |
| 2143 buf = p; | |
| 2144 | |
| 2145 s = ctx->session; | |
| 2146 | |
| 2147 if (s == NULL) { | |
| 2148 return p; | |
| 2149 } | |
| 2150 | |
| 2151 p = ngx_snprintf(buf, len, ", server: %V", s->addr_text); | |
| 2152 len -= p - buf; | |
| 2153 buf = p; | |
| 2154 | |
| 2155 if (s->login.len == 0) { | |
| 2156 return p; | |
| 2157 } | |
| 2158 | |
| 2159 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); | |
| 2160 len -= p - buf; | |
| 2161 buf = p; | |
| 2162 | |
| 2163 if (s->proxy == NULL) { | |
| 2164 return p; | |
| 2165 } | |
| 2166 | |
| 2167 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); | |
| 2168 | |
| 2169 return p; | |
| 2170 } |