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