Mercurial > hg > nginx
annotate src/mail/ngx_mail_handler.c @ 1480:a231e37a19ab
move event handling to protocol specific code,
it is required to support SMTP greeting delay
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Fri, 14 Sep 2007 10:42:19 +0000 |
| parents | 2647950e047f |
| children | 4606dce4f416 |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_event.h> |
| 1136 | 10 #include <ngx_mail.h> |
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12 |
| 1136 | 13 static void ngx_mail_init_session(ngx_connection_t *c); |
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14 |
| 1136 | 15 #if (NGX_MAIL_SSL) |
| 16 static void ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c); | |
| 17 static void ngx_mail_ssl_handshake_handler(ngx_connection_t *c); | |
| 539 | 18 #endif |
| 19 | |
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20 |
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21 static ngx_mail_init_session_pt ngx_mail_init_sessions[] = { |
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22 ngx_mail_pop3_init_session, |
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23 ngx_mail_imap_init_session, |
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24 ngx_mail_smtp_init_session |
| 521 | 25 }; |
| 26 | |
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27 |
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28 static ngx_mail_init_protocol_pt ngx_mail_init_protocols[] = { |
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29 ngx_mail_pop3_init_protocol, |
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30 ngx_mail_imap_init_protocol, |
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31 ngx_mail_smtp_init_protocol |
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32 }; |
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33 |
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34 |
| 1477 | 35 static ngx_mail_parse_command_pt ngx_mail_parse_commands[] = { |
| 36 ngx_mail_pop3_parse_command, | |
| 37 ngx_mail_imap_parse_command, | |
| 38 ngx_mail_smtp_parse_command | |
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39 }; |
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40 |
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41 |
| 525 | 42 static ngx_str_t internal_server_errors[] = { |
| 43 ngx_string("-ERR internal server error" CRLF), | |
| 44 ngx_string("* BAD internal server error" CRLF), | |
| 1136 | 45 ngx_string("451 4.3.2 Internal server error" CRLF), |
| 525 | 46 }; |
| 47 | |
| 521 | 48 |
| 49 void | |
| 1136 | 50 ngx_mail_init_connection(ngx_connection_t *c) |
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51 { |
| 641 | 52 in_addr_t in_addr; |
| 53 socklen_t len; | |
| 54 ngx_uint_t i; | |
| 55 struct sockaddr_in sin; | |
| 1136 | 56 ngx_mail_log_ctx_t *ctx; |
| 57 ngx_mail_in_port_t *imip; | |
| 58 ngx_mail_in_addr_t *imia; | |
| 59 ngx_mail_session_t *s; | |
| 60 #if (NGX_MAIL_SSL) | |
| 61 ngx_mail_ssl_conf_t *sslcf; | |
| 543 | 62 #endif |
| 541 | 63 |
| 641 | 64 |
| 65 /* find the server configuration for the address:port */ | |
| 66 | |
| 67 /* AF_INET only */ | |
| 68 | |
| 69 imip = c->listening->servers; | |
| 70 imia = imip->addrs; | |
| 71 | |
| 72 i = 0; | |
| 73 | |
| 74 if (imip->naddrs > 1) { | |
| 75 | |
| 76 /* | |
| 77 * There are several addresses on this port and one of them | |
| 78 * is the "*:port" wildcard so getsockname() is needed to determine | |
| 79 * the server address. | |
| 80 * | |
| 81 * AcceptEx() already gave this address. | |
| 82 */ | |
| 83 | |
| 84 #if (NGX_WIN32) | |
| 85 if (c->local_sockaddr) { | |
| 86 in_addr = | |
| 87 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr; | |
| 541 | 88 |
| 641 | 89 } else |
| 90 #endif | |
| 91 { | |
| 92 len = sizeof(struct sockaddr_in); | |
| 93 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) { | |
| 94 ngx_connection_error(c, ngx_socket_errno, | |
| 95 "getsockname() failed"); | |
| 1136 | 96 ngx_mail_close_connection(c); |
| 641 | 97 return; |
| 98 } | |
| 99 | |
| 100 in_addr = sin.sin_addr.s_addr; | |
| 101 } | |
| 102 | |
| 103 /* the last address is "*" */ | |
| 104 | |
| 105 for ( /* void */ ; i < imip->naddrs - 1; i++) { | |
| 106 if (in_addr == imia[i].addr) { | |
| 107 break; | |
| 108 } | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 | |
| 1136 | 113 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); |
| 641 | 114 if (s == NULL) { |
| 1136 | 115 ngx_mail_close_connection(c); |
| 541 | 116 return; |
| 577 | 117 } |
| 541 | 118 |
| 641 | 119 s->main_conf = imia[i].ctx->main_conf; |
| 120 s->srv_conf = imia[i].ctx->srv_conf; | |
| 121 | |
| 122 s->addr_text = &imia[i].addr_text; | |
| 123 | |
| 124 c->data = s; | |
| 125 s->connection = c; | |
| 126 | |
| 127 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V", | |
| 128 c->number, &c->addr_text, s->addr_text); | |
| 129 | |
| 1136 | 130 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); |
| 641 | 131 if (ctx == NULL) { |
| 1136 | 132 ngx_mail_close_connection(c); |
| 641 | 133 return; |
| 134 } | |
| 135 | |
| 136 ctx->client = &c->addr_text; | |
| 137 ctx->session = s; | |
| 541 | 138 |
| 139 c->log->connection = c->number; | |
| 1136 | 140 c->log->handler = ngx_mail_log_error; |
| 641 | 141 c->log->data = ctx; |
| 541 | 142 c->log->action = "sending client greeting line"; |
| 143 | |
| 144 c->log_error = NGX_ERROR_INFO; | |
| 145 | |
| 1136 | 146 #if (NGX_MAIL_SSL) |
| 543 | 147 |
| 1136 | 148 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
| 543 | 149 |
| 150 if (sslcf->enable) { | |
| 1136 | 151 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 547 | 152 return; |
| 543 | 153 } |
| 154 | |
| 155 #endif | |
| 156 | |
| 1136 | 157 ngx_mail_init_session(c); |
| 541 | 158 } |
| 159 | |
| 160 | |
| 1136 | 161 #if (NGX_MAIL_SSL) |
| 547 | 162 |
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163 void |
| 1136 | 164 ngx_mail_starttls_handler(ngx_event_t *rev) |
| 583 | 165 { |
| 166 ngx_connection_t *c; | |
| 1136 | 167 ngx_mail_session_t *s; |
| 168 ngx_mail_ssl_conf_t *sslcf; | |
| 583 | 169 |
| 170 c = rev->data; | |
| 171 s = c->data; | |
| 641 | 172 s->starttls = 1; |
| 583 | 173 |
| 174 c->log->action = "in starttls state"; | |
| 175 | |
| 1136 | 176 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
| 583 | 177 |
| 1136 | 178 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 583 | 179 } |
| 180 | |
| 181 | |
| 182 static void | |
| 1136 | 183 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) |
| 583 | 184 { |
| 1136 | 185 ngx_mail_session_t *s; |
| 186 ngx_mail_core_srv_conf_t *cscf; | |
| 583 | 187 |
| 188 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { | |
| 1136 | 189 ngx_mail_close_connection(c); |
| 583 | 190 return; |
| 191 } | |
| 192 | |
| 193 if (ngx_ssl_handshake(c) == NGX_AGAIN) { | |
| 194 | |
| 641 | 195 s = c->data; |
| 196 | |
| 1136 | 197 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 583 | 198 |
| 199 ngx_add_timer(c->read, cscf->timeout); | |
| 200 | |
| 1136 | 201 c->ssl->handler = ngx_mail_ssl_handshake_handler; |
| 583 | 202 |
| 203 return; | |
| 204 } | |
| 205 | |
| 1136 | 206 ngx_mail_ssl_handshake_handler(c); |
| 583 | 207 } |
| 208 | |
| 209 | |
| 210 static void | |
| 1136 | 211 ngx_mail_ssl_handshake_handler(ngx_connection_t *c) |
| 577 | 212 { |
| 1136 | 213 ngx_mail_session_t *s; |
| 641 | 214 |
| 547 | 215 if (c->ssl->handshaked) { |
| 583 | 216 |
| 641 | 217 s = c->data; |
| 218 | |
| 219 if (s->starttls) { | |
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220 c->read->handler = ngx_mail_init_protocols[s->protocol]; |
| 1136 | 221 c->write->handler = ngx_mail_send; |
| 583 | 222 |
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223 ngx_mail_init_protocols[s->protocol](c->read); |
| 583 | 224 |
| 225 return; | |
| 226 } | |
| 227 | |
| 1136 | 228 ngx_mail_init_session(c); |
| 547 | 229 return; |
| 230 } | |
| 231 | |
| 1136 | 232 ngx_mail_close_connection(c); |
| 547 | 233 } |
| 234 | |
| 235 #endif | |
| 236 | |
| 237 | |
| 238 static void | |
| 1136 | 239 ngx_mail_init_session(ngx_connection_t *c) |
| 541 | 240 { |
| 1136 | 241 ngx_mail_session_t *s; |
| 242 ngx_mail_core_srv_conf_t *cscf; | |
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243 |
| 641 | 244 s = c->data; |
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245 |
| 1136 | 246 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 539 | 247 |
| 248 s->protocol = cscf->protocol; | |
| 249 | |
| 1136 | 250 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); |
| 539 | 251 if (s->ctx == NULL) { |
| 1136 | 252 ngx_mail_session_internal_server_error(s); |
| 539 | 253 return; |
| 254 } | |
| 255 | |
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256 c->write->handler = ngx_mail_send; |
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257 |
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258 ngx_mail_init_sessions[s->protocol](s, c); |
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259 } |
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260 |
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261 |
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262 ngx_int_t |
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263 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
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264 ngx_mail_core_srv_conf_t *cscf) |
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265 { |
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266 s->salt.data = ngx_palloc(c->pool, |
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267 sizeof(" <18446744073709551616.@>" CRLF) - 1 |
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268 + NGX_TIME_T_LEN |
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269 + cscf->server_name.len); |
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270 if (s->salt.data == NULL) { |
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271 return NGX_ERROR; |
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272 } |
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273 |
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274 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, |
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275 ngx_random(), ngx_time(), &cscf->server_name) |
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276 - s->salt.data; |
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277 |
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278 return NGX_OK; |
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279 } |
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280 |
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281 |
| 1479 | 282 #if (NGX_MAIL_SSL) |
| 283 | |
| 284 ngx_int_t | |
| 285 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 286 { | |
| 287 ngx_mail_ssl_conf_t *sslcf; | |
| 288 | |
| 289 if (c->ssl) { | |
| 290 return 0; | |
| 291 } | |
| 292 | |
| 293 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 294 | |
| 295 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 296 return 1; | |
| 297 } | |
| 298 | |
| 299 return 0; | |
| 300 } | |
| 301 | |
| 302 #endif | |
| 303 | |
| 304 | |
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305 ngx_int_t |
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306 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n) |
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307 { |
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308 u_char *p, *last; |
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309 ngx_str_t *arg, plain; |
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310 |
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311 arg = s->args.elts; |
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312 |
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313 #if (NGX_DEBUG_MAIL_PASSWD) |
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314 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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315 "mail auth plain: \"%V\"", &arg[n]); |
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316 #endif |
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317 |
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318 plain.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
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319 if (plain.data == NULL){ |
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320 return NGX_ERROR; |
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321 } |
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322 |
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323 if (ngx_decode_base64(&plain, &arg[0]) != NGX_OK) { |
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324 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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325 "client sent invalid base64 encoding in AUTH PLAIN command"); |
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326 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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327 } |
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328 |
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329 p = plain.data; |
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330 last = p + plain.len; |
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331 |
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332 while (p < last && *p++) { /* void */ } |
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333 |
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334 if (p == last) { |
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335 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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336 "client sent invalid login in AUTH PLAIN command"); |
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337 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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338 } |
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339 |
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340 s->login.data = p; |
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341 |
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342 while (p < last && *p) { p++; } |
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343 |
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344 if (p == last) { |
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345 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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346 "client sent invalid password in AUTH PLAIN command"); |
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347 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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348 } |
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349 |
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350 s->login.len = p++ - s->login.data; |
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351 |
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352 s->passwd.len = last - p; |
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353 s->passwd.data = p; |
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354 |
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355 #if (NGX_DEBUG_MAIL_PASSWD) |
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356 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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357 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd); |
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358 #endif |
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359 |
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360 return NGX_DONE; |
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361 } |
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362 |
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363 |
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364 ngx_int_t |
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365 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c) |
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366 { |
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367 ngx_str_t *arg; |
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368 |
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369 arg = s->args.elts; |
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370 |
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371 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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372 "mail auth login username: \"%V\"", &arg[0]); |
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373 |
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374 s->login.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
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375 if (s->login.data == NULL){ |
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376 return NGX_ERROR; |
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377 } |
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378 |
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379 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
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380 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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381 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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382 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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383 } |
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384 |
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385 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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386 "mail auth login username: \"%V\"", &s->login); |
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387 |
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388 return NGX_OK; |
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389 } |
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390 |
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391 |
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392 ngx_int_t |
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393 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c) |
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394 { |
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395 ngx_str_t *arg; |
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396 |
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397 arg = s->args.elts; |
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398 |
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399 #if (NGX_DEBUG_MAIL_PASSWD) |
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400 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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401 "mail auth login password: \"%V\"", &arg[0]); |
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402 #endif |
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403 |
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404 s->passwd.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
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405 if (s->passwd.data == NULL){ |
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406 return NGX_ERROR; |
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407 } |
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408 |
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409 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { |
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410 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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411 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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412 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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413 } |
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414 |
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415 #if (NGX_DEBUG_MAIL_PASSWD) |
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416 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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417 "mail auth login password: \"%V\"", &s->passwd); |
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418 #endif |
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419 |
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420 return NGX_DONE; |
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421 } |
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422 |
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423 |
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424 ngx_int_t |
| 1479 | 425 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
| 426 char *prefix, size_t len) | |
| 427 { | |
| 428 u_char *p; | |
| 429 ngx_str_t salt; | |
| 430 ngx_uint_t n; | |
| 431 | |
| 432 p = ngx_palloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2); | |
| 433 if (p == NULL) { | |
| 434 return NGX_ERROR; | |
| 435 } | |
| 436 | |
| 437 salt.data = ngx_cpymem(p, prefix, len); | |
| 438 s->salt.len -= 2; | |
| 439 | |
| 440 ngx_encode_base64(&salt, &s->salt); | |
| 441 | |
| 442 s->salt.len += 2; | |
| 443 n = len + salt.len; | |
| 444 p[n++] = CR; p[n++] = LF; | |
| 445 | |
| 446 s->out.len = n; | |
| 447 s->out.data = p; | |
| 448 | |
| 449 return NGX_OK; | |
| 450 } | |
| 451 | |
| 452 | |
| 453 ngx_int_t | |
|
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454 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c) |
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455 { |
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456 u_char *p, *last; |
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457 ngx_str_t *arg; |
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458 |
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459 arg = s->args.elts; |
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460 |
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461 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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462 "mail auth cram-md5: \"%V\"", &arg[0]); |
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463 |
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464 s->login.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
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465 if (s->login.data == NULL){ |
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466 return NGX_ERROR; |
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467 } |
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468 |
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469 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
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470 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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471 "client sent invalid base64 encoding in AUTH CRAM-MD5 command"); |
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472 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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473 } |
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474 |
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475 p = s->login.data; |
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476 last = p + s->login.len; |
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477 |
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478 while (p < last) { |
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479 if (*p++ == ' ') { |
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480 s->login.len = p - s->login.data - 1; |
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481 s->passwd.len = last - p; |
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482 s->passwd.data = p; |
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483 break; |
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484 } |
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485 } |
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486 |
|
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|
487 if (s->passwd.len != 32) { |
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|
488 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
|
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|
489 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command"); |
|
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490 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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491 } |
|
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|
492 |
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|
493 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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494 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd); |
|
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|
495 |
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|
496 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; |
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497 |
|
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|
498 return NGX_DONE; |
| 539 | 499 } |
| 500 | |
| 501 | |
| 502 void | |
| 1136 | 503 ngx_mail_send(ngx_event_t *wev) |
| 539 | 504 { |
| 541 | 505 ngx_int_t n; |
| 506 ngx_connection_t *c; | |
| 1136 | 507 ngx_mail_session_t *s; |
| 508 ngx_mail_core_srv_conf_t *cscf; | |
| 539 | 509 |
| 510 c = wev->data; | |
| 511 s = c->data; | |
| 512 | |
| 513 if (wev->timedout) { | |
| 514 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 577 | 515 c->timedout = 1; |
| 1136 | 516 ngx_mail_close_connection(c); |
| 539 | 517 return; |
| 518 } | |
| 519 | |
| 520 if (s->out.len == 0) { | |
| 521 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { | |
| 1136 | 522 ngx_mail_close_connection(c); |
| 539 | 523 } |
| 524 | |
| 525 return; | |
| 526 } | |
| 527 | |
| 528 n = c->send(c, s->out.data, s->out.len); | |
| 529 | |
| 530 if (n > 0) { | |
| 531 s->out.len -= n; | |
| 532 | |
| 541 | 533 if (wev->timer_set) { |
| 534 ngx_del_timer(wev); | |
| 535 } | |
| 536 | |
| 539 | 537 if (s->quit) { |
| 1136 | 538 ngx_mail_close_connection(c); |
| 539 | 539 return; |
| 540 } | |
| 541 | |
| 542 if (s->blocked) { | |
| 543 c->read->handler(c->read); | |
| 544 } | |
| 545 | |
| 546 return; | |
| 547 } | |
| 548 | |
| 549 if (n == NGX_ERROR) { | |
| 1136 | 550 ngx_mail_close_connection(c); |
| 539 | 551 return; |
| 552 } | |
| 553 | |
| 554 /* n == NGX_AGAIN */ | |
| 555 | |
| 1136 | 556 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 541 | 557 |
| 558 ngx_add_timer(c->write, cscf->timeout); | |
| 559 | |
| 539 | 560 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) { |
| 1136 | 561 ngx_mail_close_connection(c); |
| 539 | 562 return; |
| 563 } | |
|
413
de9d4726e28a
nginx-0.0.10-2004-08-31-23:05:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
564 } |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
565 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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415
diff
changeset
|
566 |
|
1476
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|
567 ngx_int_t |
| 1136 | 568 ngx_mail_read_command(ngx_mail_session_t *s) |
|
420
33a8253115b4
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419
diff
changeset
|
569 { |
|
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419
diff
changeset
|
570 ssize_t n; |
|
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419
diff
changeset
|
571 ngx_int_t rc; |
|
1108
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diff
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|
572 ngx_str_t l; |
|
420
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419
diff
changeset
|
573 |
| 539 | 574 n = s->connection->recv(s->connection, s->buffer->last, |
| 575 s->buffer->end - s->buffer->last); | |
|
420
33a8253115b4
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419
diff
changeset
|
576 |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
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419
diff
changeset
|
577 if (n == NGX_ERROR || n == 0) { |
| 1136 | 578 ngx_mail_close_connection(s->connection); |
|
420
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
579 return NGX_ERROR; |
|
33a8253115b4
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parents:
419
diff
changeset
|
580 } |
|
33a8253115b4
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419
diff
changeset
|
581 |
|
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parents:
419
diff
changeset
|
582 if (n > 0) { |
|
33a8253115b4
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parents:
419
diff
changeset
|
583 s->buffer->last += n; |
|
33a8253115b4
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parents:
419
diff
changeset
|
584 } |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
585 |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
586 if (n == NGX_AGAIN) { |
|
33a8253115b4
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parents:
419
diff
changeset
|
587 if (ngx_handle_read_event(s->connection->read, 0) == NGX_ERROR) { |
| 1136 | 588 ngx_mail_session_internal_server_error(s); |
|
420
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
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419
diff
changeset
|
589 return NGX_ERROR; |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
590 } |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
591 |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
592 return NGX_AGAIN; |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
593 } |
|
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
594 |
| 1477 | 595 rc = ngx_mail_parse_commands[s->protocol](s); |
|
420
33a8253115b4
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
596 |
|
1108
109e8c7d7cc1
return error for too long commands
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diff
changeset
|
597 if (rc == NGX_AGAIN) { |
|
109e8c7d7cc1
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diff
changeset
|
598 |
|
109e8c7d7cc1
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parents:
1107
diff
changeset
|
599 if (s->buffer->last < s->buffer->end) { |
|
109e8c7d7cc1
return error for too long commands
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diff
changeset
|
600 return rc; |
|
109e8c7d7cc1
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parents:
1107
diff
changeset
|
601 } |
|
109e8c7d7cc1
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parents:
1107
diff
changeset
|
602 |
|
109e8c7d7cc1
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Igor Sysoev <igor@sysoev.ru>
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1107
diff
changeset
|
603 l.len = s->buffer->last - s->buffer->start; |
|
109e8c7d7cc1
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diff
changeset
|
604 l.data = s->buffer->start; |
|
109e8c7d7cc1
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1107
diff
changeset
|
605 |
|
109e8c7d7cc1
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diff
changeset
|
606 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0, |
|
109e8c7d7cc1
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1107
diff
changeset
|
607 "client sent too long command \"%V\"", &l); |
|
109e8c7d7cc1
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Igor Sysoev <igor@sysoev.ru>
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1107
diff
changeset
|
608 |
|
1111
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
609 s->quit = 1; |
|
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
610 |
| 1136 | 611 return NGX_MAIL_PARSE_INVALID_COMMAND; |
|
1108
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612 } |
|
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613 |
| 1136 | 614 if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) { |
|
420
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615 return rc; |
|
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616 } |
|
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617 |
|
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618 if (rc == NGX_ERROR) { |
| 1136 | 619 ngx_mail_close_connection(s->connection); |
|
420
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620 return NGX_ERROR; |
|
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621 } |
|
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622 |
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623 return NGX_OK; |
|
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624 } |
|
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625 |
|
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626 |
| 521 | 627 void |
|
1476
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628 ngx_mail_auth(ngx_mail_session_t *s) |
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629 { |
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630 s->args.nelts = 0; |
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631 s->buffer->pos = s->buffer->start; |
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632 s->buffer->last = s->buffer->start; |
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633 s->state = 0; |
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634 |
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635 if (s->connection->read->timer_set) { |
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636 ngx_del_timer(s->connection->read); |
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637 } |
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638 |
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639 s->login_attempt++; |
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640 |
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641 ngx_mail_auth_http_init(s); |
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642 } |
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643 |
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644 |
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645 void |
| 1136 | 646 ngx_mail_session_internal_server_error(ngx_mail_session_t *s) |
| 525 | 647 { |
| 539 | 648 s->out = internal_server_errors[s->protocol]; |
| 649 s->quit = 1; | |
| 525 | 650 |
| 1136 | 651 ngx_mail_send(s->connection->write); |
| 525 | 652 } |
| 653 | |
| 654 | |
| 655 void | |
| 1136 | 656 ngx_mail_close_connection(ngx_connection_t *c) |
|
417
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|
657 { |
| 479 | 658 ngx_pool_t *pool; |
| 659 | |
| 1136 | 660 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
| 661 "close mail connection: %d", c->fd); | |
|
417
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|
662 |
| 1136 | 663 #if (NGX_MAIL_SSL) |
| 539 | 664 |
| 665 if (c->ssl) { | |
| 666 if (ngx_ssl_shutdown(c) == NGX_AGAIN) { | |
| 1136 | 667 c->ssl->handler = ngx_mail_close_connection; |
| 539 | 668 return; |
| 669 } | |
| 670 } | |
| 671 | |
| 672 #endif | |
| 673 | |
|
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|
674 #if (NGX_STAT_STUB) |
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675 ngx_atomic_fetch_add(ngx_stat_active, -1); |
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676 #endif |
|
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677 |
| 583 | 678 c->destroyed = 1; |
| 543 | 679 |
| 479 | 680 pool = c->pool; |
| 681 | |
|
417
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|
682 ngx_close_connection(c); |
| 479 | 683 |
| 501 | 684 ngx_destroy_pool(pool); |
|
417
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685 } |
| 539 | 686 |
| 687 | |
|
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688 u_char * |
| 1136 | 689 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) |
| 541 | 690 { |
| 567 | 691 u_char *p; |
| 1136 | 692 ngx_mail_session_t *s; |
| 693 ngx_mail_log_ctx_t *ctx; | |
| 541 | 694 |
| 695 if (log->action) { | |
| 696 p = ngx_snprintf(buf, len, " while %s", log->action); | |
| 697 len -= p - buf; | |
| 698 buf = p; | |
| 699 } | |
| 577 | 700 |
| 541 | 701 ctx = log->data; |
| 702 | |
| 703 p = ngx_snprintf(buf, len, ", client: %V", ctx->client); | |
| 704 len -= p - buf; | |
| 705 buf = p; | |
| 706 | |
| 707 s = ctx->session; | |
| 708 | |
| 709 if (s == NULL) { | |
| 710 return p; | |
| 711 } | |
| 712 | |
| 641 | 713 p = ngx_snprintf(buf, len, ", server: %V", s->addr_text); |
| 541 | 714 len -= p - buf; |
| 715 buf = p; | |
| 716 | |
| 717 if (s->login.len == 0) { | |
| 718 return p; | |
| 719 } | |
| 720 | |
| 721 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); | |
| 722 len -= p - buf; | |
| 723 buf = p; | |
| 724 | |
| 725 if (s->proxy == NULL) { | |
| 726 return p; | |
| 727 } | |
| 728 | |
| 884 | 729 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); |
| 541 | 730 |
| 731 return p; | |
| 732 } |