Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_handler.c @ 4569:1db899642518
Upstream: reject upstreams without normal servers.
Such upstreams cause CPU hog later in the code as number of peers isn't
expected to be 0. Currently this may happen either if there are only backup
servers defined in an upstream block, or if server with ipv6 address used
in an upstream block.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 02 Apr 2012 21:29:35 +0000 |
| parents | d620f497c50f |
| children | 28a64967e891 |
| rev | line source |
|---|---|
|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
| 1136 | 11 #include <ngx_mail.h> |
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12 |
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13 |
| 1136 | 14 static void ngx_mail_init_session(ngx_connection_t *c); |
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15 |
| 1136 | 16 #if (NGX_MAIL_SSL) |
| 17 static void ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c); | |
| 18 static void ngx_mail_ssl_handshake_handler(ngx_connection_t *c); | |
| 539 | 19 #endif |
| 20 | |
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21 |
| 521 | 22 void |
| 1136 | 23 ngx_mail_init_connection(ngx_connection_t *c) |
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24 { |
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25 ngx_uint_t i; |
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26 ngx_mail_port_t *port; |
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27 struct sockaddr *sa; |
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28 struct sockaddr_in *sin; |
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29 ngx_mail_log_ctx_t *ctx; |
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30 ngx_mail_in_addr_t *addr; |
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31 ngx_mail_session_t *s; |
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32 ngx_mail_addr_conf_t *addr_conf; |
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33 #if (NGX_HAVE_INET6) |
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34 struct sockaddr_in6 *sin6; |
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35 ngx_mail_in6_addr_t *addr6; |
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36 #endif |
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37 |
| 641 | 38 |
| 39 /* find the server configuration for the address:port */ | |
| 40 | |
| 41 /* AF_INET only */ | |
| 42 | |
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43 port = c->listening->servers; |
| 641 | 44 |
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45 if (port->naddrs > 1) { |
| 641 | 46 |
| 47 /* | |
| 48 * There are several addresses on this port and one of them | |
| 49 * is the "*:port" wildcard so getsockname() is needed to determine | |
| 50 * the server address. | |
| 51 * | |
| 52 * AcceptEx() already gave this address. | |
| 53 */ | |
| 54 | |
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55 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { |
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56 ngx_mail_close_connection(c); |
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57 return; |
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58 } |
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59 |
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60 sa = c->local_sockaddr; |
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61 |
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62 switch (sa->sa_family) { |
| 541 | 63 |
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64 #if (NGX_HAVE_INET6) |
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65 case AF_INET6: |
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66 sin6 = (struct sockaddr_in6 *) sa; |
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67 |
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68 addr6 = port->addrs; |
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69 |
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70 /* the last address is "*" */ |
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71 |
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72 for (i = 0; i < port->naddrs - 1; i++) { |
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73 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) { |
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74 break; |
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75 } |
| 641 | 76 } |
| 77 | |
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78 addr_conf = &addr6[i].conf; |
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79 |
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80 break; |
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81 #endif |
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82 |
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83 default: /* AF_INET */ |
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84 sin = (struct sockaddr_in *) sa; |
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85 |
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86 addr = port->addrs; |
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87 |
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88 /* the last address is "*" */ |
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89 |
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90 for (i = 0; i < port->naddrs - 1; i++) { |
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91 if (addr[i].addr == sin->sin_addr.s_addr) { |
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92 break; |
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93 } |
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94 } |
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95 |
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96 addr_conf = &addr[i].conf; |
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97 |
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98 break; |
| 641 | 99 } |
| 100 | |
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101 } else { |
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102 switch (c->local_sockaddr->sa_family) { |
| 641 | 103 |
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104 #if (NGX_HAVE_INET6) |
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105 case AF_INET6: |
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106 addr6 = port->addrs; |
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107 addr_conf = &addr6[0].conf; |
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108 break; |
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109 #endif |
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110 |
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111 default: /* AF_INET */ |
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112 addr = port->addrs; |
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113 addr_conf = &addr[0].conf; |
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114 break; |
| 641 | 115 } |
| 116 } | |
| 117 | |
| 1136 | 118 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); |
| 641 | 119 if (s == NULL) { |
| 1136 | 120 ngx_mail_close_connection(c); |
| 541 | 121 return; |
| 577 | 122 } |
| 541 | 123 |
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124 s->main_conf = addr_conf->ctx->main_conf; |
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125 s->srv_conf = addr_conf->ctx->srv_conf; |
| 641 | 126 |
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127 s->addr_text = &addr_conf->addr_text; |
| 641 | 128 |
| 129 c->data = s; | |
| 130 s->connection = c; | |
| 131 | |
| 132 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V", | |
| 133 c->number, &c->addr_text, s->addr_text); | |
| 134 | |
| 1136 | 135 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); |
| 641 | 136 if (ctx == NULL) { |
| 1136 | 137 ngx_mail_close_connection(c); |
| 641 | 138 return; |
| 139 } | |
| 140 | |
| 141 ctx->client = &c->addr_text; | |
| 142 ctx->session = s; | |
| 541 | 143 |
| 144 c->log->connection = c->number; | |
| 1136 | 145 c->log->handler = ngx_mail_log_error; |
| 641 | 146 c->log->data = ctx; |
| 541 | 147 c->log->action = "sending client greeting line"; |
| 148 | |
| 149 c->log_error = NGX_ERROR_INFO; | |
| 150 | |
| 1136 | 151 #if (NGX_MAIL_SSL) |
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152 { |
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153 ngx_mail_ssl_conf_t *sslcf; |
| 543 | 154 |
| 1136 | 155 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
| 543 | 156 |
| 157 if (sslcf->enable) { | |
| 2224 | 158 c->log->action = "SSL handshaking"; |
| 159 | |
| 1136 | 160 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 547 | 161 return; |
| 543 | 162 } |
| 2224 | 163 |
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164 if (addr_conf->ssl) { |
| 2224 | 165 |
| 166 c->log->action = "SSL handshaking"; | |
| 167 | |
| 168 if (sslcf->ssl.ctx == NULL) { | |
| 169 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 170 "no \"ssl_certificate\" is defined " | |
| 171 "in server listening on SSL port"); | |
| 172 ngx_mail_close_connection(c); | |
| 173 return; | |
| 174 } | |
| 175 | |
| 176 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
| 177 return; | |
| 178 } | |
| 179 | |
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180 } |
| 543 | 181 #endif |
| 182 | |
| 1136 | 183 ngx_mail_init_session(c); |
| 541 | 184 } |
| 185 | |
| 186 | |
| 1136 | 187 #if (NGX_MAIL_SSL) |
| 547 | 188 |
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189 void |
| 1136 | 190 ngx_mail_starttls_handler(ngx_event_t *rev) |
| 583 | 191 { |
| 192 ngx_connection_t *c; | |
| 1136 | 193 ngx_mail_session_t *s; |
| 194 ngx_mail_ssl_conf_t *sslcf; | |
| 583 | 195 |
| 196 c = rev->data; | |
| 197 s = c->data; | |
| 641 | 198 s->starttls = 1; |
| 583 | 199 |
| 200 c->log->action = "in starttls state"; | |
| 201 | |
| 1136 | 202 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
| 583 | 203 |
| 1136 | 204 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 583 | 205 } |
| 206 | |
| 207 | |
| 208 static void | |
| 1136 | 209 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) |
| 583 | 210 { |
| 1136 | 211 ngx_mail_session_t *s; |
| 212 ngx_mail_core_srv_conf_t *cscf; | |
| 583 | 213 |
| 214 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { | |
| 1136 | 215 ngx_mail_close_connection(c); |
| 583 | 216 return; |
| 217 } | |
| 218 | |
| 219 if (ngx_ssl_handshake(c) == NGX_AGAIN) { | |
| 220 | |
| 641 | 221 s = c->data; |
| 222 | |
| 1136 | 223 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 583 | 224 |
| 225 ngx_add_timer(c->read, cscf->timeout); | |
| 226 | |
| 1136 | 227 c->ssl->handler = ngx_mail_ssl_handshake_handler; |
| 583 | 228 |
| 229 return; | |
| 230 } | |
| 231 | |
| 1136 | 232 ngx_mail_ssl_handshake_handler(c); |
| 583 | 233 } |
| 234 | |
| 235 | |
| 236 static void | |
| 1136 | 237 ngx_mail_ssl_handshake_handler(ngx_connection_t *c) |
| 577 | 238 { |
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239 ngx_mail_session_t *s; |
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240 ngx_mail_core_srv_conf_t *cscf; |
| 641 | 241 |
| 547 | 242 if (c->ssl->handshaked) { |
| 583 | 243 |
| 641 | 244 s = c->data; |
| 245 | |
| 246 if (s->starttls) { | |
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247 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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248 |
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249 c->read->handler = cscf->protocol->init_protocol; |
| 1136 | 250 c->write->handler = ngx_mail_send; |
| 583 | 251 |
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252 cscf->protocol->init_protocol(c->read); |
| 583 | 253 |
| 254 return; | |
| 255 } | |
| 256 | |
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257 c->read->ready = 0; |
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258 |
| 1136 | 259 ngx_mail_init_session(c); |
| 547 | 260 return; |
| 261 } | |
| 262 | |
| 1136 | 263 ngx_mail_close_connection(c); |
| 547 | 264 } |
| 265 | |
| 266 #endif | |
| 267 | |
| 268 | |
| 269 static void | |
| 1136 | 270 ngx_mail_init_session(ngx_connection_t *c) |
| 541 | 271 { |
| 1136 | 272 ngx_mail_session_t *s; |
| 273 ngx_mail_core_srv_conf_t *cscf; | |
|
417
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274 |
| 641 | 275 s = c->data; |
|
413
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276 |
| 1136 | 277 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 539 | 278 |
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279 s->protocol = cscf->protocol->type; |
| 539 | 280 |
| 1136 | 281 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); |
| 539 | 282 if (s->ctx == NULL) { |
| 1136 | 283 ngx_mail_session_internal_server_error(s); |
| 539 | 284 return; |
| 285 } | |
| 286 | |
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287 c->write->handler = ngx_mail_send; |
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288 |
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289 cscf->protocol->init_session(s, c); |
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290 } |
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291 |
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292 |
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293 ngx_int_t |
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294 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
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295 ngx_mail_core_srv_conf_t *cscf) |
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296 { |
| 2049 | 297 s->salt.data = ngx_pnalloc(c->pool, |
| 298 sizeof(" <18446744073709551616.@>" CRLF) - 1 | |
| 299 + NGX_TIME_T_LEN | |
| 300 + cscf->server_name.len); | |
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301 if (s->salt.data == NULL) { |
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302 return NGX_ERROR; |
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303 } |
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304 |
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305 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, |
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306 ngx_random(), ngx_time(), &cscf->server_name) |
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307 - s->salt.data; |
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308 |
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309 return NGX_OK; |
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310 } |
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311 |
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312 |
| 1479 | 313 #if (NGX_MAIL_SSL) |
| 314 | |
| 315 ngx_int_t | |
| 316 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 317 { | |
| 318 ngx_mail_ssl_conf_t *sslcf; | |
| 319 | |
| 320 if (c->ssl) { | |
| 321 return 0; | |
| 322 } | |
| 323 | |
| 324 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 325 | |
| 326 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 327 return 1; | |
| 328 } | |
| 329 | |
| 330 return 0; | |
| 331 } | |
| 332 | |
| 333 #endif | |
| 334 | |
| 335 | |
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336 ngx_int_t |
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337 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n) |
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338 { |
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339 u_char *p, *last; |
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340 ngx_str_t *arg, plain; |
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341 |
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342 arg = s->args.elts; |
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343 |
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344 #if (NGX_DEBUG_MAIL_PASSWD) |
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345 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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346 "mail auth plain: \"%V\"", &arg[n]); |
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347 #endif |
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348 |
| 2049 | 349 plain.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
| 3642 | 350 if (plain.data == NULL) { |
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351 return NGX_ERROR; |
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352 } |
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353 |
|
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354 if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) { |
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355 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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356 "client sent invalid base64 encoding in AUTH PLAIN command"); |
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357 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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358 } |
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359 |
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360 p = plain.data; |
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361 last = p + plain.len; |
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362 |
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363 while (p < last && *p++) { /* void */ } |
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364 |
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365 if (p == last) { |
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366 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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367 "client sent invalid login in AUTH PLAIN command"); |
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368 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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369 } |
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370 |
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371 s->login.data = p; |
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372 |
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373 while (p < last && *p) { p++; } |
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374 |
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375 if (p == last) { |
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376 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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377 "client sent invalid password in AUTH PLAIN command"); |
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378 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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379 } |
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380 |
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381 s->login.len = p++ - s->login.data; |
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382 |
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383 s->passwd.len = last - p; |
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384 s->passwd.data = p; |
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385 |
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386 #if (NGX_DEBUG_MAIL_PASSWD) |
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387 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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388 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd); |
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389 #endif |
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390 |
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391 return NGX_DONE; |
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392 } |
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393 |
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394 |
|
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395 ngx_int_t |
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396 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c, |
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397 ngx_uint_t n) |
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398 { |
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399 ngx_str_t *arg; |
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400 |
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401 arg = s->args.elts; |
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402 |
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403 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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404 "mail auth login username: \"%V\"", &arg[n]); |
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405 |
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406 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
| 3642 | 407 if (s->login.data == NULL) { |
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408 return NGX_ERROR; |
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409 } |
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410 |
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411 if (ngx_decode_base64(&s->login, &arg[n]) != NGX_OK) { |
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412 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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413 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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414 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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415 } |
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416 |
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417 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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418 "mail auth login username: \"%V\"", &s->login); |
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419 |
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420 return NGX_OK; |
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421 } |
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422 |
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423 |
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424 ngx_int_t |
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425 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c) |
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426 { |
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427 ngx_str_t *arg; |
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428 |
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429 arg = s->args.elts; |
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430 |
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431 #if (NGX_DEBUG_MAIL_PASSWD) |
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432 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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433 "mail auth login password: \"%V\"", &arg[0]); |
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434 #endif |
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435 |
| 2049 | 436 s->passwd.data = ngx_pnalloc(c->pool, |
| 437 ngx_base64_decoded_length(arg[0].len)); | |
| 3642 | 438 if (s->passwd.data == NULL) { |
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439 return NGX_ERROR; |
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440 } |
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441 |
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442 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { |
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443 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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444 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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445 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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446 } |
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447 |
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448 #if (NGX_DEBUG_MAIL_PASSWD) |
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449 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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450 "mail auth login password: \"%V\"", &s->passwd); |
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451 #endif |
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452 |
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453 return NGX_DONE; |
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454 } |
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455 |
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456 |
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457 ngx_int_t |
| 1479 | 458 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
| 459 char *prefix, size_t len) | |
| 460 { | |
| 461 u_char *p; | |
| 462 ngx_str_t salt; | |
| 463 ngx_uint_t n; | |
| 464 | |
| 2049 | 465 p = ngx_pnalloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2); |
| 1479 | 466 if (p == NULL) { |
| 467 return NGX_ERROR; | |
| 468 } | |
| 469 | |
| 470 salt.data = ngx_cpymem(p, prefix, len); | |
| 471 s->salt.len -= 2; | |
| 472 | |
| 473 ngx_encode_base64(&salt, &s->salt); | |
| 474 | |
| 475 s->salt.len += 2; | |
| 476 n = len + salt.len; | |
| 477 p[n++] = CR; p[n++] = LF; | |
| 478 | |
| 479 s->out.len = n; | |
| 480 s->out.data = p; | |
| 481 | |
| 482 return NGX_OK; | |
| 483 } | |
| 484 | |
| 485 | |
| 486 ngx_int_t | |
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487 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c) |
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488 { |
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489 u_char *p, *last; |
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490 ngx_str_t *arg; |
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491 |
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492 arg = s->args.elts; |
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493 |
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494 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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495 "mail auth cram-md5: \"%V\"", &arg[0]); |
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496 |
| 2049 | 497 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
| 3642 | 498 if (s->login.data == NULL) { |
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499 return NGX_ERROR; |
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500 } |
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501 |
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502 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
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503 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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504 "client sent invalid base64 encoding in AUTH CRAM-MD5 command"); |
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505 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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506 } |
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507 |
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508 p = s->login.data; |
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509 last = p + s->login.len; |
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510 |
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511 while (p < last) { |
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512 if (*p++ == ' ') { |
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513 s->login.len = p - s->login.data - 1; |
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514 s->passwd.len = last - p; |
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515 s->passwd.data = p; |
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516 break; |
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517 } |
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518 } |
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519 |
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520 if (s->passwd.len != 32) { |
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521 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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522 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command"); |
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523 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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524 } |
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525 |
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526 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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527 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd); |
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528 |
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529 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; |
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530 |
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531 return NGX_DONE; |
| 539 | 532 } |
| 533 | |
| 534 | |
| 535 void | |
| 1136 | 536 ngx_mail_send(ngx_event_t *wev) |
| 539 | 537 { |
| 541 | 538 ngx_int_t n; |
| 539 ngx_connection_t *c; | |
| 1136 | 540 ngx_mail_session_t *s; |
| 541 ngx_mail_core_srv_conf_t *cscf; | |
| 539 | 542 |
| 543 c = wev->data; | |
| 544 s = c->data; | |
| 545 | |
| 546 if (wev->timedout) { | |
| 547 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 577 | 548 c->timedout = 1; |
| 1136 | 549 ngx_mail_close_connection(c); |
| 539 | 550 return; |
| 551 } | |
| 552 | |
| 553 if (s->out.len == 0) { | |
|
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2224
diff
changeset
|
554 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
| 1136 | 555 ngx_mail_close_connection(c); |
| 539 | 556 } |
| 557 | |
| 558 return; | |
| 559 } | |
| 560 | |
| 561 n = c->send(c, s->out.data, s->out.len); | |
| 562 | |
| 563 if (n > 0) { | |
| 564 s->out.len -= n; | |
| 565 | |
| 541 | 566 if (wev->timer_set) { |
| 567 ngx_del_timer(wev); | |
| 568 } | |
| 569 | |
| 539 | 570 if (s->quit) { |
| 1136 | 571 ngx_mail_close_connection(c); |
| 539 | 572 return; |
| 573 } | |
| 574 | |
| 575 if (s->blocked) { | |
| 576 c->read->handler(c->read); | |
| 577 } | |
| 578 | |
| 579 return; | |
| 580 } | |
| 581 | |
| 582 if (n == NGX_ERROR) { | |
| 1136 | 583 ngx_mail_close_connection(c); |
| 539 | 584 return; |
| 585 } | |
| 586 | |
| 587 /* n == NGX_AGAIN */ | |
| 588 | |
| 1136 | 589 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 541 | 590 |
| 591 ngx_add_timer(c->write, cscf->timeout); | |
| 592 | |
|
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2224
diff
changeset
|
593 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
| 1136 | 594 ngx_mail_close_connection(c); |
| 539 | 595 return; |
| 596 } | |
|
413
de9d4726e28a
nginx-0.0.10-2004-08-31-23:05:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
597 } |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
598 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
599 |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
600 ngx_int_t |
| 1482 | 601 ngx_mail_read_command(ngx_mail_session_t *s, ngx_connection_t *c) |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
602 { |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
603 ssize_t n; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
604 ngx_int_t rc; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
605 ngx_str_t l; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
606 ngx_mail_core_srv_conf_t *cscf; |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
607 |
| 1482 | 608 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
609 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
610 if (n == NGX_ERROR || n == 0) { |
| 1482 | 611 ngx_mail_close_connection(c); |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
612 return NGX_ERROR; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
613 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
614 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
615 if (n > 0) { |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
616 s->buffer->last += n; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
617 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
618 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
619 if (n == NGX_AGAIN) { |
|
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2224
diff
changeset
|
620 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
| 1136 | 621 ngx_mail_session_internal_server_error(s); |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
622 return NGX_ERROR; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
623 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
624 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
625 return NGX_AGAIN; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
626 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
627 |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
628 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
629 |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
630 rc = cscf->protocol->parse_command(s); |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
631 |
|
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
632 if (rc == NGX_AGAIN) { |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
633 |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
634 if (s->buffer->last < s->buffer->end) { |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
635 return rc; |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
636 } |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
637 |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
638 l.len = s->buffer->last - s->buffer->start; |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
639 l.data = s->buffer->start; |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
640 |
| 1482 | 641 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
|
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
642 "client sent too long command \"%V\"", &l); |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
643 |
|
1111
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
644 s->quit = 1; |
|
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
645 |
| 1136 | 646 return NGX_MAIL_PARSE_INVALID_COMMAND; |
|
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
647 } |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
648 |
| 1136 | 649 if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) { |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
650 return rc; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
651 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
652 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
653 if (rc == NGX_ERROR) { |
| 1482 | 654 ngx_mail_close_connection(c); |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
655 return NGX_ERROR; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
656 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
657 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
658 return NGX_OK; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
659 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
660 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
661 |
| 521 | 662 void |
| 1482 | 663 ngx_mail_auth(ngx_mail_session_t *s, ngx_connection_t *c) |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
664 { |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
665 s->args.nelts = 0; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
666 s->buffer->pos = s->buffer->start; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
667 s->buffer->last = s->buffer->start; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
668 s->state = 0; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
669 |
| 1482 | 670 if (c->read->timer_set) { |
| 671 ngx_del_timer(c->read); | |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
672 } |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
673 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
674 s->login_attempt++; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
675 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
676 ngx_mail_auth_http_init(s); |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
677 } |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
678 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
679 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
680 void |
| 1136 | 681 ngx_mail_session_internal_server_error(ngx_mail_session_t *s) |
| 525 | 682 { |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
683 ngx_mail_core_srv_conf_t *cscf; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
684 |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
685 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
686 |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
687 s->out = cscf->protocol->internal_server_error; |
| 539 | 688 s->quit = 1; |
| 525 | 689 |
| 1136 | 690 ngx_mail_send(s->connection->write); |
| 525 | 691 } |
| 692 | |
| 693 | |
| 694 void | |
| 1136 | 695 ngx_mail_close_connection(ngx_connection_t *c) |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
696 { |
| 479 | 697 ngx_pool_t *pool; |
| 698 | |
| 1136 | 699 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
| 700 "close mail connection: %d", c->fd); | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
701 |
| 1136 | 702 #if (NGX_MAIL_SSL) |
| 539 | 703 |
| 704 if (c->ssl) { | |
| 705 if (ngx_ssl_shutdown(c) == NGX_AGAIN) { | |
| 1136 | 706 c->ssl->handler = ngx_mail_close_connection; |
| 539 | 707 return; |
| 708 } | |
| 709 } | |
| 710 | |
| 711 #endif | |
| 712 | |
|
1472
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
713 #if (NGX_STAT_STUB) |
|
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2855
diff
changeset
|
714 (void) ngx_atomic_fetch_add(ngx_stat_active, -1); |
|
1472
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
715 #endif |
|
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
716 |
| 583 | 717 c->destroyed = 1; |
| 543 | 718 |
| 479 | 719 pool = c->pool; |
| 720 | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
721 ngx_close_connection(c); |
| 479 | 722 |
| 501 | 723 ngx_destroy_pool(pool); |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
724 } |
| 539 | 725 |
| 726 | |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
727 u_char * |
| 1136 | 728 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) |
| 541 | 729 { |
| 567 | 730 u_char *p; |
| 1136 | 731 ngx_mail_session_t *s; |
| 732 ngx_mail_log_ctx_t *ctx; | |
| 541 | 733 |
| 734 if (log->action) { | |
| 735 p = ngx_snprintf(buf, len, " while %s", log->action); | |
| 736 len -= p - buf; | |
| 737 buf = p; | |
| 738 } | |
| 577 | 739 |
| 541 | 740 ctx = log->data; |
| 741 | |
| 742 p = ngx_snprintf(buf, len, ", client: %V", ctx->client); | |
| 743 len -= p - buf; | |
| 744 buf = p; | |
| 745 | |
| 746 s = ctx->session; | |
| 747 | |
| 748 if (s == NULL) { | |
| 749 return p; | |
| 750 } | |
| 751 | |
| 1491 | 752 p = ngx_snprintf(buf, len, "%s, server: %V", |
| 753 s->starttls ? " using starttls" : "", | |
| 754 s->addr_text); | |
| 541 | 755 len -= p - buf; |
| 756 buf = p; | |
| 757 | |
| 758 if (s->login.len == 0) { | |
| 759 return p; | |
| 760 } | |
| 761 | |
| 762 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); | |
| 763 len -= p - buf; | |
| 764 buf = p; | |
| 765 | |
| 766 if (s->proxy == NULL) { | |
| 767 return p; | |
| 768 } | |
| 769 | |
| 884 | 770 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); |
| 541 | 771 |
| 772 return p; | |
| 773 } |