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