Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_handler.c @ 6774:bcb107bb89cd
Mail: support SASL EXTERNAL (RFC 4422).
This is needed to allow TLS client certificate auth to work. With
ssl_verify_client configured, the auth daemon can choose to allow the
connection to proceed based on the certificate data.
This has been tested with Thunderbird for IMAP only. I've not yet found a
client that will do client certificate auth for POP3 or SMTP, and the method is
not really documented anywhere that I can find. That said, its simple enough
that the way I've done is probably right.
author | Rob N ★ <robn@fastmail.com> |
---|---|
date | Sat, 08 Oct 2016 18:05:00 +1100 |
parents | fc99323a3d79 |
children | 03444167a3bb |
rev | line source |
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441
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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. |
441
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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); |
413
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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 | |
413
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23 |
521 | 24 void |
1136 | 25 ngx_mail_init_connection(ngx_connection_t *c) |
413
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26 { |
6130 | 27 size_t len; |
28 ngx_uint_t i; | |
29 ngx_mail_port_t *port; | |
30 struct sockaddr *sa; | |
31 struct sockaddr_in *sin; | |
32 ngx_mail_log_ctx_t *ctx; | |
33 ngx_mail_in_addr_t *addr; | |
34 ngx_mail_session_t *s; | |
35 ngx_mail_addr_conf_t *addr_conf; | |
36 ngx_mail_core_srv_conf_t *cscf; | |
37 u_char text[NGX_SOCKADDR_STRLEN]; | |
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38 #if (NGX_HAVE_INET6) |
6130 | 39 struct sockaddr_in6 *sin6; |
40 ngx_mail_in6_addr_t *addr6; | |
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41 #endif |
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42 |
641 | 43 |
44 /* find the server configuration for the address:port */ | |
45 | |
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46 port = c->listening->servers; |
641 | 47 |
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48 if (port->naddrs > 1) { |
641 | 49 |
50 /* | |
51 * There are several addresses on this port and one of them | |
52 * is the "*:port" wildcard so getsockname() is needed to determine | |
53 * the server address. | |
54 * | |
55 * AcceptEx() already gave this address. | |
56 */ | |
57 | |
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58 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) { |
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59 ngx_mail_close_connection(c); |
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60 return; |
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61 } |
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62 |
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63 sa = c->local_sockaddr; |
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64 |
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65 switch (sa->sa_family) { |
541 | 66 |
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67 #if (NGX_HAVE_INET6) |
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68 case AF_INET6: |
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69 sin6 = (struct sockaddr_in6 *) sa; |
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70 |
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71 addr6 = port->addrs; |
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72 |
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73 /* the last address is "*" */ |
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74 |
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75 for (i = 0; i < port->naddrs - 1; i++) { |
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76 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) { |
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77 break; |
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78 } |
641 | 79 } |
80 | |
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81 addr_conf = &addr6[i].conf; |
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82 |
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83 break; |
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84 #endif |
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85 |
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86 default: /* AF_INET */ |
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87 sin = (struct sockaddr_in *) sa; |
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88 |
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89 addr = port->addrs; |
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90 |
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91 /* the last address is "*" */ |
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92 |
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93 for (i = 0; i < port->naddrs - 1; i++) { |
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94 if (addr[i].addr == sin->sin_addr.s_addr) { |
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95 break; |
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96 } |
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97 } |
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98 |
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99 addr_conf = &addr[i].conf; |
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100 |
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101 break; |
641 | 102 } |
103 | |
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104 } else { |
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105 switch (c->local_sockaddr->sa_family) { |
641 | 106 |
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107 #if (NGX_HAVE_INET6) |
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108 case AF_INET6: |
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109 addr6 = port->addrs; |
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110 addr_conf = &addr6[0].conf; |
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111 break; |
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112 #endif |
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113 |
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114 default: /* AF_INET */ |
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115 addr = port->addrs; |
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116 addr_conf = &addr[0].conf; |
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117 break; |
641 | 118 } |
119 } | |
120 | |
1136 | 121 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t)); |
641 | 122 if (s == NULL) { |
1136 | 123 ngx_mail_close_connection(c); |
541 | 124 return; |
577 | 125 } |
541 | 126 |
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127 s->signature = NGX_MAIL_MODULE; |
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128 |
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129 s->main_conf = addr_conf->ctx->main_conf; |
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130 s->srv_conf = addr_conf->ctx->srv_conf; |
641 | 131 |
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132 s->addr_text = &addr_conf->addr_text; |
641 | 133 |
134 c->data = s; | |
135 s->connection = c; | |
136 | |
6130 | 137 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
138 | |
139 ngx_set_connection_log(c, cscf->error_log); | |
140 | |
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141 len = ngx_sock_ntop(c->sockaddr, c->socklen, text, NGX_SOCKADDR_STRLEN, 1); |
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142 |
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143 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%uA client %*s connected to %V", |
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144 c->number, len, text, s->addr_text); |
641 | 145 |
1136 | 146 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t)); |
641 | 147 if (ctx == NULL) { |
1136 | 148 ngx_mail_close_connection(c); |
641 | 149 return; |
150 } | |
151 | |
152 ctx->client = &c->addr_text; | |
153 ctx->session = s; | |
541 | 154 |
155 c->log->connection = c->number; | |
1136 | 156 c->log->handler = ngx_mail_log_error; |
641 | 157 c->log->data = ctx; |
541 | 158 c->log->action = "sending client greeting line"; |
159 | |
160 c->log_error = NGX_ERROR_INFO; | |
161 | |
1136 | 162 #if (NGX_MAIL_SSL) |
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163 { |
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164 ngx_mail_ssl_conf_t *sslcf; |
543 | 165 |
1136 | 166 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
543 | 167 |
168 if (sslcf->enable) { | |
2224 | 169 c->log->action = "SSL handshaking"; |
170 | |
1136 | 171 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
547 | 172 return; |
543 | 173 } |
2224 | 174 |
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175 if (addr_conf->ssl) { |
2224 | 176 |
177 c->log->action = "SSL handshaking"; | |
178 | |
179 if (sslcf->ssl.ctx == NULL) { | |
180 ngx_log_error(NGX_LOG_ERR, c->log, 0, | |
181 "no \"ssl_certificate\" is defined " | |
182 "in server listening on SSL port"); | |
183 ngx_mail_close_connection(c); | |
184 return; | |
185 } | |
186 | |
187 ngx_mail_ssl_init_connection(&sslcf->ssl, c); | |
188 return; | |
189 } | |
190 | |
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191 } |
543 | 192 #endif |
193 | |
1136 | 194 ngx_mail_init_session(c); |
541 | 195 } |
196 | |
197 | |
1136 | 198 #if (NGX_MAIL_SSL) |
547 | 199 |
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200 void |
1136 | 201 ngx_mail_starttls_handler(ngx_event_t *rev) |
583 | 202 { |
203 ngx_connection_t *c; | |
1136 | 204 ngx_mail_session_t *s; |
205 ngx_mail_ssl_conf_t *sslcf; | |
583 | 206 |
207 c = rev->data; | |
208 s = c->data; | |
641 | 209 s->starttls = 1; |
583 | 210 |
211 c->log->action = "in starttls state"; | |
212 | |
1136 | 213 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
583 | 214 |
1136 | 215 ngx_mail_ssl_init_connection(&sslcf->ssl, c); |
583 | 216 } |
217 | |
218 | |
219 static void | |
1136 | 220 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c) |
583 | 221 { |
1136 | 222 ngx_mail_session_t *s; |
223 ngx_mail_core_srv_conf_t *cscf; | |
583 | 224 |
225 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) { | |
1136 | 226 ngx_mail_close_connection(c); |
583 | 227 return; |
228 } | |
229 | |
230 if (ngx_ssl_handshake(c) == NGX_AGAIN) { | |
231 | |
641 | 232 s = c->data; |
233 | |
1136 | 234 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
583 | 235 |
236 ngx_add_timer(c->read, cscf->timeout); | |
237 | |
1136 | 238 c->ssl->handler = ngx_mail_ssl_handshake_handler; |
583 | 239 |
240 return; | |
241 } | |
242 | |
1136 | 243 ngx_mail_ssl_handshake_handler(c); |
583 | 244 } |
245 | |
246 | |
247 static void | |
1136 | 248 ngx_mail_ssl_handshake_handler(ngx_connection_t *c) |
577 | 249 { |
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250 ngx_mail_session_t *s; |
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251 ngx_mail_core_srv_conf_t *cscf; |
641 | 252 |
547 | 253 if (c->ssl->handshaked) { |
583 | 254 |
641 | 255 s = c->data; |
256 | |
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257 if (ngx_mail_verify_cert(s, c) != NGX_OK) { |
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258 return; |
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259 } |
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260 |
641 | 261 if (s->starttls) { |
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262 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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263 |
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264 c->read->handler = cscf->protocol->init_protocol; |
1136 | 265 c->write->handler = ngx_mail_send; |
583 | 266 |
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267 cscf->protocol->init_protocol(c->read); |
583 | 268 |
269 return; | |
270 } | |
271 | |
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272 c->read->ready = 0; |
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273 |
1136 | 274 ngx_mail_init_session(c); |
547 | 275 return; |
276 } | |
277 | |
1136 | 278 ngx_mail_close_connection(c); |
547 | 279 } |
280 | |
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281 |
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282 static ngx_int_t |
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283 ngx_mail_verify_cert(ngx_mail_session_t *s, ngx_connection_t *c) |
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284 { |
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285 long rc; |
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286 X509 *cert; |
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287 ngx_mail_ssl_conf_t *sslcf; |
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288 ngx_mail_core_srv_conf_t *cscf; |
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289 |
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290 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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291 |
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292 if (!sslcf->verify) { |
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293 return NGX_OK; |
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294 } |
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295 |
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296 rc = SSL_get_verify_result(c->ssl->connection); |
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297 |
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298 if (rc != X509_V_OK |
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299 && (sslcf->verify != 3 || !ngx_ssl_verify_error_optional(rc))) |
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300 { |
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301 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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302 "client SSL certificate verify error: (%l:%s)", |
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303 rc, X509_verify_cert_error_string(rc)); |
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304 |
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305 ngx_ssl_remove_cached_session(sslcf->ssl.ctx, |
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306 (SSL_get0_session(c->ssl->connection))); |
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307 |
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308 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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309 |
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310 s->out = cscf->protocol->cert_error; |
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311 s->quit = 1; |
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312 |
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313 c->write->handler = ngx_mail_send; |
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314 |
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315 ngx_mail_send(s->connection->write); |
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316 return NGX_ERROR; |
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317 } |
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318 |
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319 if (sslcf->verify == 1) { |
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320 cert = SSL_get_peer_certificate(c->ssl->connection); |
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321 |
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322 if (cert == NULL) { |
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323 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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324 "client sent no required SSL certificate"); |
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325 |
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326 ngx_ssl_remove_cached_session(sslcf->ssl.ctx, |
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327 (SSL_get0_session(c->ssl->connection))); |
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328 |
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329 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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330 |
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331 s->out = cscf->protocol->no_cert; |
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332 s->quit = 1; |
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333 |
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334 c->write->handler = ngx_mail_send; |
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335 |
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336 ngx_mail_send(s->connection->write); |
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337 return NGX_ERROR; |
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338 } |
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339 |
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340 X509_free(cert); |
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341 } |
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342 |
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343 return NGX_OK; |
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344 } |
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345 |
547 | 346 #endif |
347 | |
348 | |
349 static void | |
1136 | 350 ngx_mail_init_session(ngx_connection_t *c) |
541 | 351 { |
1136 | 352 ngx_mail_session_t *s; |
353 ngx_mail_core_srv_conf_t *cscf; | |
417
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354 |
641 | 355 s = c->data; |
413
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356 |
1136 | 357 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
539 | 358 |
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359 s->protocol = cscf->protocol->type; |
539 | 360 |
1136 | 361 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module); |
539 | 362 if (s->ctx == NULL) { |
1136 | 363 ngx_mail_session_internal_server_error(s); |
539 | 364 return; |
365 } | |
366 | |
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367 c->write->handler = ngx_mail_send; |
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368 |
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369 cscf->protocol->init_session(s, c); |
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370 } |
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371 |
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372 |
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373 ngx_int_t |
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374 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
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375 ngx_mail_core_srv_conf_t *cscf) |
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376 { |
2049 | 377 s->salt.data = ngx_pnalloc(c->pool, |
378 sizeof(" <18446744073709551616.@>" CRLF) - 1 | |
379 + NGX_TIME_T_LEN | |
380 + cscf->server_name.len); | |
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381 if (s->salt.data == NULL) { |
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382 return NGX_ERROR; |
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383 } |
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384 |
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385 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF, |
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386 ngx_random(), ngx_time(), &cscf->server_name) |
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387 - s->salt.data; |
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388 |
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389 return NGX_OK; |
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390 } |
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391 |
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392 |
1479 | 393 #if (NGX_MAIL_SSL) |
394 | |
395 ngx_int_t | |
396 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c) | |
397 { | |
398 ngx_mail_ssl_conf_t *sslcf; | |
399 | |
400 if (c->ssl) { | |
401 return 0; | |
402 } | |
403 | |
404 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); | |
405 | |
406 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { | |
407 return 1; | |
408 } | |
409 | |
410 return 0; | |
411 } | |
412 | |
413 #endif | |
414 | |
415 | |
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416 ngx_int_t |
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417 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n) |
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418 { |
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419 u_char *p, *last; |
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420 ngx_str_t *arg, plain; |
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421 |
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422 arg = s->args.elts; |
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423 |
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424 #if (NGX_DEBUG_MAIL_PASSWD) |
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425 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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426 "mail auth plain: \"%V\"", &arg[n]); |
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427 #endif |
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428 |
2049 | 429 plain.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
3642 | 430 if (plain.data == NULL) { |
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431 return NGX_ERROR; |
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432 } |
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433 |
1494
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434 if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) { |
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435 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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436 "client sent invalid base64 encoding in AUTH PLAIN command"); |
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437 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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438 } |
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439 |
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440 p = plain.data; |
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441 last = p + plain.len; |
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442 |
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443 while (p < last && *p++) { /* void */ } |
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444 |
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445 if (p == last) { |
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446 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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447 "client sent invalid login in AUTH PLAIN command"); |
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448 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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449 } |
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450 |
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451 s->login.data = p; |
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452 |
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453 while (p < last && *p) { p++; } |
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454 |
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455 if (p == last) { |
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456 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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457 "client sent invalid password in AUTH PLAIN command"); |
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458 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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459 } |
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460 |
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461 s->login.len = p++ - s->login.data; |
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462 |
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463 s->passwd.len = last - p; |
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464 s->passwd.data = p; |
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465 |
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466 #if (NGX_DEBUG_MAIL_PASSWD) |
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467 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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468 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd); |
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469 #endif |
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470 |
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471 return NGX_DONE; |
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472 } |
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473 |
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474 |
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475 ngx_int_t |
2495
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|
476 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c, |
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477 ngx_uint_t n) |
1476
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478 { |
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479 ngx_str_t *arg; |
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480 |
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481 arg = s->args.elts; |
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482 |
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483 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
2495
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484 "mail auth login username: \"%V\"", &arg[n]); |
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485 |
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486 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
3642 | 487 if (s->login.data == NULL) { |
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488 return NGX_ERROR; |
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489 } |
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490 |
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491 if (ngx_decode_base64(&s->login, &arg[n]) != NGX_OK) { |
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492 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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493 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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494 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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495 } |
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496 |
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497 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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498 "mail auth login username: \"%V\"", &s->login); |
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499 |
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500 return NGX_OK; |
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501 } |
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502 |
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503 |
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504 ngx_int_t |
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505 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c) |
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506 { |
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507 ngx_str_t *arg; |
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508 |
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509 arg = s->args.elts; |
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510 |
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511 #if (NGX_DEBUG_MAIL_PASSWD) |
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512 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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513 "mail auth login password: \"%V\"", &arg[0]); |
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514 #endif |
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515 |
2049 | 516 s->passwd.data = ngx_pnalloc(c->pool, |
517 ngx_base64_decoded_length(arg[0].len)); | |
3642 | 518 if (s->passwd.data == NULL) { |
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519 return NGX_ERROR; |
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520 } |
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521 |
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522 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) { |
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523 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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524 "client sent invalid base64 encoding in AUTH LOGIN command"); |
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525 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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526 } |
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527 |
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528 #if (NGX_DEBUG_MAIL_PASSWD) |
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529 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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530 "mail auth login password: \"%V\"", &s->passwd); |
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531 #endif |
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532 |
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533 return NGX_DONE; |
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534 } |
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535 |
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536 |
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537 ngx_int_t |
1479 | 538 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c, |
539 char *prefix, size_t len) | |
540 { | |
541 u_char *p; | |
542 ngx_str_t salt; | |
543 ngx_uint_t n; | |
544 | |
2049 | 545 p = ngx_pnalloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2); |
1479 | 546 if (p == NULL) { |
547 return NGX_ERROR; | |
548 } | |
549 | |
550 salt.data = ngx_cpymem(p, prefix, len); | |
551 s->salt.len -= 2; | |
552 | |
553 ngx_encode_base64(&salt, &s->salt); | |
554 | |
555 s->salt.len += 2; | |
556 n = len + salt.len; | |
557 p[n++] = CR; p[n++] = LF; | |
558 | |
559 s->out.len = n; | |
560 s->out.data = p; | |
561 | |
562 return NGX_OK; | |
563 } | |
564 | |
565 | |
566 ngx_int_t | |
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567 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c) |
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568 { |
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569 u_char *p, *last; |
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570 ngx_str_t *arg; |
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571 |
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572 arg = s->args.elts; |
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573 |
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574 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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575 "mail auth cram-md5: \"%V\"", &arg[0]); |
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576 |
2049 | 577 s->login.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[0].len)); |
3642 | 578 if (s->login.data == NULL) { |
1476
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579 return NGX_ERROR; |
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580 } |
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581 |
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582 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) { |
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583 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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584 "client sent invalid base64 encoding in AUTH CRAM-MD5 command"); |
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585 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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586 } |
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587 |
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588 p = s->login.data; |
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589 last = p + s->login.len; |
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590 |
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591 while (p < last) { |
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592 if (*p++ == ' ') { |
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593 s->login.len = p - s->login.data - 1; |
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594 s->passwd.len = last - p; |
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595 s->passwd.data = p; |
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596 break; |
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597 } |
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598 } |
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599 |
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600 if (s->passwd.len != 32) { |
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601 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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602 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command"); |
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603 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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604 } |
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605 |
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606 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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607 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd); |
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608 |
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609 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5; |
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610 |
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611 return NGX_DONE; |
539 | 612 } |
613 | |
614 | |
6774
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615 ngx_int_t |
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616 ngx_mail_auth_external(ngx_mail_session_t *s, ngx_connection_t *c, |
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617 ngx_uint_t n) |
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618 { |
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|
619 ngx_str_t *arg, external; |
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|
620 |
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|
621 arg = s->args.elts; |
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|
622 |
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|
623 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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624 "mail auth external: \"%V\"", &arg[n]); |
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|
625 |
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626 external.data = ngx_pnalloc(c->pool, ngx_base64_decoded_length(arg[n].len)); |
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627 if (external.data == NULL) { |
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628 return NGX_ERROR; |
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|
629 } |
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|
630 |
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|
631 if (ngx_decode_base64(&external, &arg[n]) != NGX_OK) { |
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632 ngx_log_error(NGX_LOG_INFO, c->log, 0, |
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633 "client sent invalid base64 encoding in AUTH EXTERNAL command"); |
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634 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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635 } |
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|
636 |
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|
637 s->login.len = external.len; |
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|
638 s->login.data = external.data; |
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|
639 |
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|
640 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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|
641 "mail auth external: \"%V\"", &s->login); |
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|
642 |
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|
643 s->auth_method = NGX_MAIL_AUTH_EXTERNAL; |
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|
644 |
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|
645 return NGX_DONE; |
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|
646 } |
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|
647 |
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|
648 |
539 | 649 void |
1136 | 650 ngx_mail_send(ngx_event_t *wev) |
539 | 651 { |
541 | 652 ngx_int_t n; |
653 ngx_connection_t *c; | |
1136 | 654 ngx_mail_session_t *s; |
655 ngx_mail_core_srv_conf_t *cscf; | |
539 | 656 |
657 c = wev->data; | |
658 s = c->data; | |
659 | |
660 if (wev->timedout) { | |
661 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); | |
577 | 662 c->timedout = 1; |
1136 | 663 ngx_mail_close_connection(c); |
539 | 664 return; |
665 } | |
666 | |
667 if (s->out.len == 0) { | |
2388
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668 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
1136 | 669 ngx_mail_close_connection(c); |
539 | 670 } |
671 | |
672 return; | |
673 } | |
674 | |
675 n = c->send(c, s->out.data, s->out.len); | |
676 | |
677 if (n > 0) { | |
5632
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|
678 s->out.data += n; |
539 | 679 s->out.len -= n; |
680 | |
5632
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diff
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|
681 if (s->out.len != 0) { |
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|
682 goto again; |
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|
683 } |
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|
684 |
541 | 685 if (wev->timer_set) { |
686 ngx_del_timer(wev); | |
687 } | |
688 | |
539 | 689 if (s->quit) { |
1136 | 690 ngx_mail_close_connection(c); |
539 | 691 return; |
692 } | |
693 | |
694 if (s->blocked) { | |
695 c->read->handler(c->read); | |
696 } | |
697 | |
698 return; | |
699 } | |
700 | |
701 if (n == NGX_ERROR) { | |
1136 | 702 ngx_mail_close_connection(c); |
539 | 703 return; |
704 } | |
705 | |
706 /* n == NGX_AGAIN */ | |
707 | |
5632
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diff
changeset
|
708 again: |
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|
709 |
1136 | 710 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
541 | 711 |
712 ngx_add_timer(c->write, cscf->timeout); | |
713 | |
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714 if (ngx_handle_write_event(c->write, 0) != NGX_OK) { |
1136 | 715 ngx_mail_close_connection(c); |
539 | 716 return; |
717 } | |
413
de9d4726e28a
nginx-0.0.10-2004-08-31-23:05:39 import
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|
718 } |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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diff
changeset
|
719 |
0526206251f6
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diff
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|
720 |
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721 ngx_int_t |
1482 | 722 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
|
723 { |
1487
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diff
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|
724 ssize_t n; |
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|
725 ngx_int_t rc; |
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|
726 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
|
727 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
|
728 |
1482 | 729 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
|
730 |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
731 if (n == NGX_ERROR || n == 0) { |
1482 | 732 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
|
733 return NGX_ERROR; |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
734 } |
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 if (n > 0) { |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
737 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
|
738 } |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
739 |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
740 if (n == NGX_AGAIN) { |
2388
722b5aff05ae
use "!= NGX_OK" instead of "== NGX_ERROR"
Igor Sysoev <igor@sysoev.ru>
parents:
2224
diff
changeset
|
741 if (ngx_handle_read_event(c->read, 0) != NGX_OK) { |
1136 | 742 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
|
743 return NGX_ERROR; |
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 |
5398
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
746 if (s->buffer->pos == s->buffer->last) { |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
747 return NGX_AGAIN; |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
748 } |
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
749 } |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
750 |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
751 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
|
752 |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
753 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
|
754 |
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
755 if (rc == NGX_AGAIN) { |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
756 |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
757 if (s->buffer->last < s->buffer->end) { |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
758 return rc; |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
759 } |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
760 |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
761 l.len = s->buffer->last - s->buffer->start; |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
762 l.data = s->buffer->start; |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
763 |
1482 | 764 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
|
765 "client sent too long command \"%V\"", &l); |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
766 |
1111
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
767 s->quit = 1; |
b0fc4af1f196
close connection for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1108
diff
changeset
|
768 |
1136 | 769 return NGX_MAIL_PARSE_INVALID_COMMAND; |
1108
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
770 } |
109e8c7d7cc1
return error for too long commands
Igor Sysoev <igor@sysoev.ru>
parents:
1107
diff
changeset
|
771 |
1136 | 772 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
|
773 return rc; |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
774 } |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
775 |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
776 if (rc == NGX_ERROR) { |
1482 | 777 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
|
778 return NGX_ERROR; |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
779 } |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
780 |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
781 return NGX_OK; |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
782 } |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
783 |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
784 |
521 | 785 void |
1482 | 786 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
|
787 { |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
788 s->args.nelts = 0; |
5398
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
789 |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
790 if (s->buffer->pos == s->buffer->last) { |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
791 s->buffer->pos = s->buffer->start; |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
792 s->buffer->last = s->buffer->start; |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
793 } |
04e43d03e153
Mail: smtp pipelining support.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4818
diff
changeset
|
794 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
795 s->state = 0; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
796 |
1482 | 797 if (c->read->timer_set) { |
798 ngx_del_timer(c->read); | |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
799 } |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
800 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
801 s->login_attempt++; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
802 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
803 ngx_mail_auth_http_init(s); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
804 } |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
805 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
806 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
807 void |
1136 | 808 ngx_mail_session_internal_server_error(ngx_mail_session_t *s) |
525 | 809 { |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
810 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
|
811 |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
812 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
|
813 |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1482
diff
changeset
|
814 s->out = cscf->protocol->internal_server_error; |
539 | 815 s->quit = 1; |
525 | 816 |
1136 | 817 ngx_mail_send(s->connection->write); |
525 | 818 } |
819 | |
820 | |
821 void | |
1136 | 822 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
|
823 { |
479 | 824 ngx_pool_t *pool; |
825 | |
1136 | 826 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
827 "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
|
828 |
1136 | 829 #if (NGX_MAIL_SSL) |
539 | 830 |
831 if (c->ssl) { | |
832 if (ngx_ssl_shutdown(c) == NGX_AGAIN) { | |
1136 | 833 c->ssl->handler = ngx_mail_close_connection; |
539 | 834 return; |
835 } | |
836 } | |
837 | |
838 #endif | |
839 | |
1472
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
840 #if (NGX_STAT_STUB) |
2951
5acd98486a33
ignore ngx_atomic_fetch_add() result
Igor Sysoev <igor@sysoev.ru>
parents:
2855
diff
changeset
|
841 (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
|
842 #endif |
32450a2bbdf4
decrement active connection counter in mail proxy
Igor Sysoev <igor@sysoev.ru>
parents:
1323
diff
changeset
|
843 |
583 | 844 c->destroyed = 1; |
543 | 845 |
479 | 846 pool = c->pool; |
847 | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
848 ngx_close_connection(c); |
479 | 849 |
501 | 850 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
|
851 } |
539 | 852 |
853 | |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
854 u_char * |
1136 | 855 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len) |
541 | 856 { |
567 | 857 u_char *p; |
1136 | 858 ngx_mail_session_t *s; |
859 ngx_mail_log_ctx_t *ctx; | |
541 | 860 |
861 if (log->action) { | |
862 p = ngx_snprintf(buf, len, " while %s", log->action); | |
863 len -= p - buf; | |
864 buf = p; | |
865 } | |
577 | 866 |
541 | 867 ctx = log->data; |
868 | |
869 p = ngx_snprintf(buf, len, ", client: %V", ctx->client); | |
870 len -= p - buf; | |
871 buf = p; | |
872 | |
873 s = ctx->session; | |
874 | |
875 if (s == NULL) { | |
876 return p; | |
877 } | |
878 | |
1491 | 879 p = ngx_snprintf(buf, len, "%s, server: %V", |
880 s->starttls ? " using starttls" : "", | |
881 s->addr_text); | |
541 | 882 len -= p - buf; |
883 buf = p; | |
884 | |
885 if (s->login.len == 0) { | |
886 return p; | |
887 } | |
888 | |
889 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login); | |
890 len -= p - buf; | |
891 buf = p; | |
892 | |
893 if (s->proxy == NULL) { | |
894 return p; | |
895 } | |
896 | |
884 | 897 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name); |
541 | 898 |
899 return p; | |
900 } |