Mercurial > hg > nginx
annotate src/mail/ngx_mail_handler.c @ 5989:ec01b1d1fff1
Mail: client SSL certificates support.
The "ssl_verify_client", "ssl_verify_depth", "ssl_client_certificate",
"ssl_trusted_certificate", and "ssl_crl" directives introduced to control
SSL client certificate verification in mail proxy module.
If there is a certificate, detail of the certificate are passed to
the auth_http script configured via Auth-SSL-Verify, Auth-SSL-Subject,
Auth-SSL-Issuer, Auth-SSL-Serial, Auth-SSL-Fingerprint headers. If
the auth_http_pass_client_cert directive is set, client certificate
in PEM format will be passed in the Auth-SSL-Cert header (urlencoded).
If there is no required certificate provided during an SSL handshake
or certificate verification fails then a protocol-specific error is
returned after the SSL handshake and the connection is closed.
Based on previous work by Sven Peter, Franck Levionnois and Filipe Da Silva.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Wed, 25 Feb 2015 17:48:05 +0300 |
| parents | 8e7ee4c70a3c |
| children | fc99323a3d79 |
| 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); | |
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19 static ngx_int_t ngx_mail_verify_cert(ngx_mail_session_t *s, |
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20 ngx_connection_t *c); |
| 539 | 21 #endif |
| 22 | |
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23 |
| 521 | 24 void |
| 1136 | 25 ngx_mail_init_connection(ngx_connection_t *c) |
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26 { |
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27 size_t len; |
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28 ngx_uint_t i; |
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29 ngx_mail_port_t *port; |
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30 struct sockaddr *sa; |
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31 struct sockaddr_in *sin; |
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32 ngx_mail_log_ctx_t *ctx; |
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33 ngx_mail_in_addr_t *addr; |
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34 ngx_mail_session_t *s; |
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35 ngx_mail_addr_conf_t *addr_conf; |
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36 u_char text[NGX_SOCKADDR_STRLEN]; |
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37 #if (NGX_HAVE_INET6) |
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38 struct sockaddr_in6 *sin6; |
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39 ngx_mail_in6_addr_t *addr6; |
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40 #endif |
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41 |
| 641 | 42 |
| 43 /* find the server configuration for the address:port */ | |
| 44 | |
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45 port = c->listening->servers; |
| 641 | 46 |
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47 if (port->naddrs > 1) { |
| 641 | 48 |
| 49 /* | |
| 50 * There are several addresses on this port and one of them | |
| 51 * is the "*:port" wildcard so getsockname() is needed to determine | |
| 52 * the server address. | |
| 53 * | |
| 54 * AcceptEx() already gave this address. | |
| 55 */ | |
| 56 | |
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57 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { |
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58 ngx_mail_close_connection(c); |
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59 return; |
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60 } |
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61 |
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62 sa = c->local_sockaddr; |
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63 |
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64 switch (sa->sa_family) { |
| 541 | 65 |
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66 #if (NGX_HAVE_INET6) |
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67 case AF_INET6: |
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68 sin6 = (struct sockaddr_in6 *) sa; |
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69 |
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70 addr6 = port->addrs; |
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71 |
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72 /* the last address is "*" */ |
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73 |
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74 for (i = 0; i < port->naddrs - 1; i++) { |
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75 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) { |
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76 break; |
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77 } |
| 641 | 78 } |
| 79 | |
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80 addr_conf = &addr6[i].conf; |
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81 |
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82 break; |
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83 #endif |
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84 |
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85 default: /* AF_INET */ |
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86 sin = (struct sockaddr_in *) sa; |
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87 |
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88 addr = port->addrs; |
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89 |
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90 /* the last address is "*" */ |
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91 |
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92 for (i = 0; i < port->naddrs - 1; i++) { |
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93 if (addr[i].addr == sin->sin_addr.s_addr) { |
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94 break; |
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95 } |
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96 } |
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97 |
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98 addr_conf = &addr[i].conf; |
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99 |
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100 break; |
| 641 | 101 } |
| 102 | |
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103 } else { |
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104 switch (c->local_sockaddr->sa_family) { |
| 641 | 105 |
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106 #if (NGX_HAVE_INET6) |
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107 case AF_INET6: |
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108 addr6 = port->addrs; |
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109 addr_conf = &addr6[0].conf; |
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110 break; |
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111 #endif |
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112 |
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113 default: /* AF_INET */ |
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114 addr = port->addrs; |
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115 addr_conf = &addr[0].conf; |
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116 break; |
| 641 | 117 } |
| 118 } | |
| 119 | |
| 1136 | 120 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); |
| 641 | 121 if (s == NULL) { |
| 1136 | 122 ngx_mail_close_connection(c); |
| 541 | 123 return; |
| 577 | 124 } |
| 541 | 125 |
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126 s->signature = NGX_MAIL_MODULE; |
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127 |
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128 s->main_conf = addr_conf->ctx->main_conf; |
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129 s->srv_conf = addr_conf->ctx->srv_conf; |
| 641 | 130 |
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131 s->addr_text = &addr_conf->addr_text; |
| 641 | 132 |
| 133 c->data = s; | |
| 134 s->connection = c; | |
| 135 | |
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136 len = ngx_sock_ntop(c->sockaddr, c->socklen, text, NGX_SOCKADDR_STRLEN, 1); |
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137 |
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138 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%uA client %*s connected to %V", |
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139 c->number, len, text, s->addr_text); |
| 641 | 140 |
| 1136 | 141 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); |
| 641 | 142 if (ctx == NULL) { |
| 1136 | 143 ngx_mail_close_connection(c); |
| 641 | 144 return; |
| 145 } | |
| 146 | |
| 147 ctx->client = &c->addr_text; | |
| 148 ctx->session = s; | |
| 541 | 149 |
| 150 c->log->connection = c->number; | |
| 1136 | 151 c->log->handler = ngx_mail_log_error; |
| 641 | 152 c->log->data = ctx; |
| 541 | 153 c->log->action = "sending client greeting line"; |
| 154 | |
| 155 c->log_error = NGX_ERROR_INFO; | |
| 156 | |
| 1136 | 157 #if (NGX_MAIL_SSL) |
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158 { |
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159 ngx_mail_ssl_conf_t *sslcf; |
| 543 | 160 |
| 1136 | 161 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
| 543 | 162 |
| 163 if (sslcf->enable) { | |
| 2224 | 164 c->log->action = "SSL handshaking"; |
| 165 | |
| 1136 | 166 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 547 | 167 return; |
| 543 | 168 } |
| 2224 | 169 |
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170 if (addr_conf->ssl) { |
| 2224 | 171 |
| 172 c->log->action = "SSL handshaking"; | |
| 173 | |
| 174 if (sslcf->ssl.ctx == NULL) { | |
| 175 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
| 176 "no \"ssl_certificate\" is defined " | |
| 177 "in server listening on SSL port"); | |
| 178 ngx_mail_close_connection(c); | |
| 179 return; | |
| 180 } | |
| 181 | |
| 182 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
| 183 return; | |
| 184 } | |
| 185 | |
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186 } |
| 543 | 187 #endif |
| 188 | |
| 1136 | 189 ngx_mail_init_session(c); |
| 541 | 190 } |
| 191 | |
| 192 | |
| 1136 | 193 #if (NGX_MAIL_SSL) |
| 547 | 194 |
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195 void |
| 1136 | 196 ngx_mail_starttls_handler(ngx_event_t *rev) |
| 583 | 197 { |
| 198 ngx_connection_t *c; | |
| 1136 | 199 ngx_mail_session_t *s; |
| 200 ngx_mail_ssl_conf_t *sslcf; | |
| 583 | 201 |
| 202 c = rev->data; | |
| 203 s = c->data; | |
| 641 | 204 s->starttls = 1; |
| 583 | 205 |
| 206 c->log->action = "in starttls state"; | |
| 207 | |
| 1136 | 208 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
| 583 | 209 |
| 1136 | 210 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
| 583 | 211 } |
| 212 | |
| 213 | |
| 214 static void | |
| 1136 | 215 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) |
| 583 | 216 { |
| 1136 | 217 ngx_mail_session_t *s; |
| 218 ngx_mail_core_srv_conf_t *cscf; | |
| 583 | 219 |
| 220 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { | |
| 1136 | 221 ngx_mail_close_connection(c); |
| 583 | 222 return; |
| 223 } | |
| 224 | |
| 225 if (ngx_ssl_handshake(c) == NGX_AGAIN) { | |
| 226 | |
| 641 | 227 s = c->data; |
| 228 | |
| 1136 | 229 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 583 | 230 |
| 231 ngx_add_timer(c->read, cscf->timeout); | |
| 232 | |
| 1136 | 233 c->ssl->handler = ngx_mail_ssl_handshake_handler; |
| 583 | 234 |
| 235 return; | |
| 236 } | |
| 237 | |
| 1136 | 238 ngx_mail_ssl_handshake_handler(c); |
| 583 | 239 } |
| 240 | |
| 241 | |
| 242 static void | |
| 1136 | 243 ngx_mail_ssl_handshake_handler(ngx_connection_t *c) |
| 577 | 244 { |
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245 ngx_mail_session_t *s; |
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246 ngx_mail_core_srv_conf_t *cscf; |
| 641 | 247 |
| 547 | 248 if (c->ssl->handshaked) { |
| 583 | 249 |
| 641 | 250 s = c->data; |
| 251 | |
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252 if (ngx_mail_verify_cert(s, c) != NGX_OK) { |
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253 return; |
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254 } |
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255 |
| 641 | 256 if (s->starttls) { |
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257 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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258 |
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259 c->read->handler = cscf->protocol->init_protocol; |
| 1136 | 260 c->write->handler = ngx_mail_send; |
| 583 | 261 |
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262 cscf->protocol->init_protocol(c->read); |
| 583 | 263 |
| 264 return; | |
| 265 } | |
| 266 | |
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267 c->read->ready = 0; |
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268 |
| 1136 | 269 ngx_mail_init_session(c); |
| 547 | 270 return; |
| 271 } | |
| 272 | |
| 1136 | 273 ngx_mail_close_connection(c); |
| 547 | 274 } |
| 275 | |
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276 |
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277 static ngx_int_t |
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278 ngx_mail_verify_cert(ngx_mail_session_t *s, ngx_connection_t *c) |
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279 { |
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280 long rc; |
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281 X509 *cert; |
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282 ngx_mail_ssl_conf_t *sslcf; |
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283 ngx_mail_core_srv_conf_t *cscf; |
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284 |
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285 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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286 |
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287 if (!sslcf->verify) { |
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288 return NGX_OK; |
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289 } |
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290 |
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291 rc = SSL_get_verify_result(c->ssl->connection); |
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292 |
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293 if (rc != X509_V_OK |
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294 && (sslcf->verify != 3 || !ngx_ssl_verify_error_optional(rc))) |
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295 { |
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296 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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297 "client SSL certificate verify error: (%l:%s)", |
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298 rc, X509_verify_cert_error_string(rc)); |
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299 |
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300 ngx_ssl_remove_cached_session(sslcf->ssl.ctx, |
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301 (SSL_get0_session(c->ssl->connection))); |
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302 |
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303 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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304 |
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305 s->out = cscf->protocol->cert_error; |
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306 s->quit = 1; |
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307 |
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308 c->write->handler = ngx_mail_send; |
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309 |
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310 ngx_mail_send(s->connection->write); |
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311 return NGX_ERROR; |
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312 } |
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313 |
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314 if (sslcf->verify == 1) { |
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315 cert = SSL_get_peer_certificate(c->ssl->connection); |
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316 |
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317 if (cert == NULL) { |
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318 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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319 "client sent no required SSL certificate"); |
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320 |
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321 ngx_ssl_remove_cached_session(sslcf->ssl.ctx, |
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322 (SSL_get0_session(c->ssl->connection))); |
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323 |
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324 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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325 |
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326 s->out = cscf->protocol->no_cert; |
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327 s->quit = 1; |
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328 |
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329 c->write->handler = ngx_mail_send; |
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330 |
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331 ngx_mail_send(s->connection->write); |
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332 return NGX_ERROR; |
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333 } |
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334 |
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335 X509_free(cert); |
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336 } |
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337 |
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338 return NGX_OK; |
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339 } |
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340 |
| 547 | 341 #endif |
| 342 | |
| 343 | |
| 344 static void | |
| 1136 | 345 ngx_mail_init_session(ngx_connection_t *c) |
| 541 | 346 { |
| 1136 | 347 ngx_mail_session_t *s; |
| 348 ngx_mail_core_srv_conf_t *cscf; | |
|
417
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349 |
| 641 | 350 s = c->data; |
|
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351 |
| 1136 | 352 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 539 | 353 |
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354 s->protocol = cscf->protocol->type; |
| 539 | 355 |
| 1136 | 356 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); |
| 539 | 357 if (s->ctx == NULL) { |
| 1136 | 358 ngx_mail_session_internal_server_error(s); |
| 539 | 359 return; |
| 360 } | |
| 361 | |
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362 c->write->handler = ngx_mail_send; |
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363 |
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364 cscf->protocol->init_session(s, c); |
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365 } |
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366 |
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367 |
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368 ngx_int_t |
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369 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
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370 ngx_mail_core_srv_conf_t *cscf) |
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371 { |
| 2049 | 372 s->salt.data = ngx_pnalloc(c->pool, |
| 373 sizeof(" <18446744073709551616.@>" CRLF) - 1 | |
| 374 + NGX_TIME_T_LEN | |
| 375 + cscf->server_name.len); | |
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376 if (s->salt.data == NULL) { |
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377 return NGX_ERROR; |
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378 } |
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379 |
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380 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, |
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381 ngx_random(), ngx_time(), &cscf->server_name) |
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382 - s->salt.data; |
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383 |
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384 return NGX_OK; |
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385 } |
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386 |
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|
387 |
| 1479 | 388 #if (NGX_MAIL_SSL) |
| 389 | |
| 390 ngx_int_t | |
| 391 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c) | |
| 392 { | |
| 393 ngx_mail_ssl_conf_t *sslcf; | |
| 394 | |
| 395 if (c->ssl) { | |
| 396 return 0; | |
| 397 } | |
| 398 | |
| 399 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
| 400 | |
| 401 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
| 402 return 1; | |
| 403 } | |
| 404 | |
| 405 return 0; | |
| 406 } | |
| 407 | |
| 408 #endif | |
| 409 | |
| 410 | |
|
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411 ngx_int_t |
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412 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n) |
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413 { |
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414 u_char *p, *last; |
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415 ngx_str_t *arg, plain; |
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416 |
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417 arg = s->args.elts; |
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418 |
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419 #if (NGX_DEBUG_MAIL_PASSWD) |
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420 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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421 "mail auth plain: \"%V\"", &arg[n]); |
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422 #endif |
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423 |
| 2049 | 424 plain.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
| 3642 | 425 if (plain.data == NULL) { |
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426 return NGX_ERROR; |
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427 } |
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428 |
|
1494
6535fb51976a
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429 if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) { |
|
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430 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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431 "client sent invalid base64 encoding in AUTH PLAIN command"); |
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432 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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433 } |
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434 |
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435 p = plain.data; |
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436 last = p + plain.len; |
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437 |
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438 while (p < last && *p++) { /* void */ } |
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439 |
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440 if (p == last) { |
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441 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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442 "client sent invalid login in AUTH PLAIN command"); |
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443 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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444 } |
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445 |
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446 s->login.data = p; |
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447 |
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448 while (p < last && *p) { p++; } |
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449 |
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450 if (p == last) { |
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451 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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452 "client sent invalid password in AUTH PLAIN command"); |
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453 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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454 } |
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|
455 |
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456 s->login.len = p++ - s->login.data; |
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457 |
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458 s->passwd.len = last - p; |
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459 s->passwd.data = p; |
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460 |
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461 #if (NGX_DEBUG_MAIL_PASSWD) |
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462 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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463 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd); |
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464 #endif |
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465 |
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466 return NGX_DONE; |
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467 } |
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468 |
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469 |
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|
470 ngx_int_t |
|
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|
471 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c, |
|
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472 ngx_uint_t n) |
|
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473 { |
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474 ngx_str_t *arg; |
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475 |
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476 arg = s->args.elts; |
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477 |
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|
478 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
|
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|
479 "mail auth login username: \"%V\"", &arg[n]); |
|
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480 |
|
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|
481 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
| 3642 | 482 if (s->login.data == NULL) { |
|
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483 return NGX_ERROR; |
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484 } |
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485 |
|
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486 if (ngx_decode_base64(&s->login, &arg[n]) != NGX_OK) { |
|
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487 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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|
488 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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489 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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490 } |
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491 |
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492 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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493 "mail auth login username: \"%V\"", &s->login); |
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494 |
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495 return NGX_OK; |
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496 } |
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497 |
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|
498 |
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499 ngx_int_t |
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500 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c) |
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501 { |
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502 ngx_str_t *arg; |
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503 |
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504 arg = s->args.elts; |
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505 |
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506 #if (NGX_DEBUG_MAIL_PASSWD) |
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507 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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508 "mail auth login password: \"%V\"", &arg[0]); |
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509 #endif |
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510 |
| 2049 | 511 s->passwd.data = ngx_pnalloc(c->pool, |
| 512 ngx_base64_decoded_length(arg[0].len)); | |
| 3642 | 513 if (s->passwd.data == NULL) { |
|
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514 return NGX_ERROR; |
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515 } |
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516 |
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517 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { |
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518 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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519 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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520 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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521 } |
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522 |
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523 #if (NGX_DEBUG_MAIL_PASSWD) |
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524 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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525 "mail auth login password: \"%V\"", &s->passwd); |
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526 #endif |
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527 |
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528 return NGX_DONE; |
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529 } |
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530 |
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531 |
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532 ngx_int_t |
| 1479 | 533 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
| 534 char *prefix, size_t len) | |
| 535 { | |
| 536 u_char *p; | |
| 537 ngx_str_t salt; | |
| 538 ngx_uint_t n; | |
| 539 | |
| 2049 | 540 p = ngx_pnalloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2); |
| 1479 | 541 if (p == NULL) { |
| 542 return NGX_ERROR; | |
| 543 } | |
| 544 | |
| 545 salt.data = ngx_cpymem(p, prefix, len); | |
| 546 s->salt.len -= 2; | |
| 547 | |
| 548 ngx_encode_base64(&salt, &s->salt); | |
| 549 | |
| 550 s->salt.len += 2; | |
| 551 n = len + salt.len; | |
| 552 p[n++] = CR; p[n++] = LF; | |
| 553 | |
| 554 s->out.len = n; | |
| 555 s->out.data = p; | |
| 556 | |
| 557 return NGX_OK; | |
| 558 } | |
| 559 | |
| 560 | |
| 561 ngx_int_t | |
|
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562 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c) |
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563 { |
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564 u_char *p, *last; |
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565 ngx_str_t *arg; |
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566 |
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567 arg = s->args.elts; |
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568 |
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569 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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570 "mail auth cram-md5: \"%V\"", &arg[0]); |
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571 |
| 2049 | 572 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
| 3642 | 573 if (s->login.data == NULL) { |
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574 return NGX_ERROR; |
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575 } |
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576 |
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577 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
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578 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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579 "client sent invalid base64 encoding in AUTH CRAM-MD5 command"); |
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580 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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581 } |
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582 |
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583 p = s->login.data; |
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584 last = p + s->login.len; |
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585 |
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586 while (p < last) { |
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587 if (*p++ == ' ') { |
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588 s->login.len = p - s->login.data - 1; |
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589 s->passwd.len = last - p; |
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590 s->passwd.data = p; |
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591 break; |
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592 } |
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593 } |
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594 |
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595 if (s->passwd.len != 32) { |
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596 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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597 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command"); |
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598 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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599 } |
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600 |
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601 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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602 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd); |
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603 |
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604 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; |
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605 |
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606 return NGX_DONE; |
| 539 | 607 } |
| 608 | |
| 609 | |
| 610 void | |
| 1136 | 611 ngx_mail_send(ngx_event_t *wev) |
| 539 | 612 { |
| 541 | 613 ngx_int_t n; |
| 614 ngx_connection_t *c; | |
| 1136 | 615 ngx_mail_session_t *s; |
| 616 ngx_mail_core_srv_conf_t *cscf; | |
| 539 | 617 |
| 618 c = wev->data; | |
| 619 s = c->data; | |
| 620 | |
| 621 if (wev->timedout) { | |
| 622 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
| 577 | 623 c->timedout = 1; |
| 1136 | 624 ngx_mail_close_connection(c); |
| 539 | 625 return; |
| 626 } | |
| 627 | |
| 628 if (s->out.len == 0) { | |
|
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|
629 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
| 1136 | 630 ngx_mail_close_connection(c); |
| 539 | 631 } |
| 632 | |
| 633 return; | |
| 634 } | |
| 635 | |
| 636 n = c->send(c, s->out.data, s->out.len); | |
| 637 | |
| 638 if (n > 0) { | |
|
5632
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Maxim Dounin <mdounin@mdounin.ru>
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diff
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|
639 s->out.data += n; |
| 539 | 640 s->out.len -= n; |
| 641 | |
|
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|
642 if (s->out.len != 0) { |
|
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diff
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|
643 goto again; |
|
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|
644 } |
|
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|
645 |
| 541 | 646 if (wev->timer_set) { |
| 647 ngx_del_timer(wev); | |
| 648 } | |
| 649 | |
| 539 | 650 if (s->quit) { |
| 1136 | 651 ngx_mail_close_connection(c); |
| 539 | 652 return; |
| 653 } | |
| 654 | |
| 655 if (s->blocked) { | |
| 656 c->read->handler(c->read); | |
| 657 } | |
| 658 | |
| 659 return; | |
| 660 } | |
| 661 | |
| 662 if (n == NGX_ERROR) { | |
| 1136 | 663 ngx_mail_close_connection(c); |
| 539 | 664 return; |
| 665 } | |
| 666 | |
| 667 /* n == NGX_AGAIN */ | |
| 668 | |
|
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diff
changeset
|
669 again: |
|
b42e7c790b81
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changeset
|
670 |
| 1136 | 671 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
| 541 | 672 |
| 673 ngx_add_timer(c->write, cscf->timeout); | |
| 674 | |
|
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|
675 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
| 1136 | 676 ngx_mail_close_connection(c); |
| 539 | 677 return; |
| 678 } | |
|
413
de9d4726e28a
nginx-0.0.10-2004-08-31-23:05:39 import
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diff
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|
679 } |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
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415
diff
changeset
|
680 |
|
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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diff
changeset
|
681 |
|
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|
682 ngx_int_t |
| 1482 | 683 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
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419
diff
changeset
|
684 { |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
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1482
diff
changeset
|
685 ssize_t n; |
|
f69493e8faab
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Igor Sysoev <igor@sysoev.ru>
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changeset
|
686 ngx_int_t rc; |
|
f69493e8faab
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1482
diff
changeset
|
687 ngx_str_t l; |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
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diff
changeset
|
688 ngx_mail_core_srv_conf_t *cscf; |
|
420
33a8253115b4
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419
diff
changeset
|
689 |
| 1482 | 690 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
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419
diff
changeset
|
691 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
692 if (n == NGX_ERROR || n == 0) { |
| 1482 | 693 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
|
694 return NGX_ERROR; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
695 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
696 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
697 if (n > 0) { |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
698 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
|
699 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
700 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
701 if (n == NGX_AGAIN) { |
|
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2224
diff
changeset
|
702 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
| 1136 | 703 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
|
704 return NGX_ERROR; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
705 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
706 |
|
5398
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
707 if (s->buffer->pos == s->buffer->last) { |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
708 return NGX_AGAIN; |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
709 } |
|
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
710 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
711 |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
712 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
|
713 |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
714 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
|
715 |
|
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
716 if (rc == NGX_AGAIN) { |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
717 |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
718 if (s->buffer->last < s->buffer->end) { |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
719 return rc; |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
720 } |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
721 |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
722 l.len = s->buffer->last - s->buffer->start; |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
723 l.data = s->buffer->start; |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
724 |
| 1482 | 725 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
|
726 "client sent too long command \"%V\"", &l); |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
727 |
|
1111
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
728 s->quit = 1; |
|
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
729 |
| 1136 | 730 return NGX_MAIL_PARSE_INVALID_COMMAND; |
|
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
731 } |
|
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
732 |
| 1136 | 733 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
|
734 return rc; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
735 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
736 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
737 if (rc == NGX_ERROR) { |
| 1482 | 738 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
|
739 return NGX_ERROR; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
740 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
741 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
742 return NGX_OK; |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
743 } |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
744 |
|
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
745 |
| 521 | 746 void |
| 1482 | 747 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
|
748 { |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
749 s->args.nelts = 0; |
|
5398
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
750 |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
751 if (s->buffer->pos == s->buffer->last) { |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
752 s->buffer->pos = s->buffer->start; |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
753 s->buffer->last = s->buffer->start; |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
754 } |
|
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
755 |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
756 s->state = 0; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
757 |
| 1482 | 758 if (c->read->timer_set) { |
| 759 ngx_del_timer(c->read); | |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
760 } |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
761 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
762 s->login_attempt++; |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
763 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
764 ngx_mail_auth_http_init(s); |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
765 } |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
766 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
767 |
|
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
768 void |
| 1136 | 769 ngx_mail_session_internal_server_error(ngx_mail_session_t *s) |
| 525 | 770 { |
|
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
771 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
|
772 |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
773 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
|
774 |
|
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
775 s->out = cscf->protocol->internal_server_error; |
| 539 | 776 s->quit = 1; |
| 525 | 777 |
| 1136 | 778 ngx_mail_send(s->connection->write); |
| 525 | 779 } |
| 780 | |
| 781 | |
| 782 void | |
| 1136 | 783 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
|
784 { |
| 479 | 785 ngx_pool_t *pool; |
| 786 | |
| 1136 | 787 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
| 788 "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
|
789 |
| 1136 | 790 #if (NGX_MAIL_SSL) |
| 539 | 791 |
| 792 if (c->ssl) { | |
| 793 if (ngx_ssl_shutdown(c) == NGX_AGAIN) { | |
| 1136 | 794 c->ssl->handler = ngx_mail_close_connection; |
| 539 | 795 return; |
| 796 } | |
| 797 } | |
| 798 | |
| 799 #endif | |
| 800 | |
|
1472
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
801 #if (NGX_STAT_STUB) |
|
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2855
diff
changeset
|
802 (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
|
803 #endif |
|
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
804 |
| 583 | 805 c->destroyed = 1; |
| 543 | 806 |
| 479 | 807 pool = c->pool; |
| 808 | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
809 ngx_close_connection(c); |
| 479 | 810 |
| 501 | 811 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
|
812 } |
| 539 | 813 |
| 814 | |
|
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
815 u_char * |
| 1136 | 816 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) |
| 541 | 817 { |
| 567 | 818 u_char *p; |
| 1136 | 819 ngx_mail_session_t *s; |
| 820 ngx_mail_log_ctx_t *ctx; | |
| 541 | 821 |
| 822 if (log->action) { | |
| 823 p = ngx_snprintf(buf, len, " while %s", log->action); | |
| 824 len -= p - buf; | |
| 825 buf = p; | |
| 826 } | |
| 577 | 827 |
| 541 | 828 ctx = log->data; |
| 829 | |
| 830 p = ngx_snprintf(buf, len, ", client: %V", ctx->client); | |
| 831 len -= p - buf; | |
| 832 buf = p; | |
| 833 | |
| 834 s = ctx->session; | |
| 835 | |
| 836 if (s == NULL) { | |
| 837 return p; | |
| 838 } | |
| 839 | |
| 1491 | 840 p = ngx_snprintf(buf, len, "%s, server: %V", |
| 841 s->starttls ? " using starttls" : "", | |
| 842 s->addr_text); | |
| 541 | 843 len -= p - buf; |
| 844 buf = p; | |
| 845 | |
| 846 if (s->login.len == 0) { | |
| 847 return p; | |
| 848 } | |
| 849 | |
| 850 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); | |
| 851 len -= p - buf; | |
| 852 buf = p; | |
| 853 | |
| 854 if (s->proxy == NULL) { | |
| 855 return p; | |
| 856 } | |
| 857 | |
| 884 | 858 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); |
| 541 | 859 |
| 860 return p; | |
| 861 } |