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