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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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24 in_addr_t in_addr;
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25 socklen_t len;
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26 ngx_uint_t i;
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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_port_t *imip;
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30 ngx_mail_in_addr_t *imia;
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31 ngx_mail_session_t *s;
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32 #if (NGX_MAIL_SSL)
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33 ngx_mail_ssl_conf_t *sslcf;
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34 #endif
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35
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36
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37 /* find the server configuration for the address:port */
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38
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39 /* AF_INET only */
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40
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41 imip = c->listening->servers;
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42 imia = imip->addrs;
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43
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44 i = 0;
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45
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46 if (imip->naddrs > 1) {
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47
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48 /*
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49 * There are several addresses on this port and one of them
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50 * is the "*:port" wildcard so getsockname() is needed to determine
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51 * the server address.
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52 *
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53 * AcceptEx() already gave this address.
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54 */
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55
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56 #if (NGX_WIN32)
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57 if (c->local_sockaddr) {
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58 in_addr =
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59 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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60
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61 } else
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62 #endif
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63 {
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64 len = sizeof(struct sockaddr_in);
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65 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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66 ngx_connection_error(c, ngx_socket_errno,
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67 "getsockname() failed");
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68 ngx_mail_close_connection(c);
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69 return;
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70 }
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71
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72 in_addr = sin.sin_addr.s_addr;
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73 }
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74
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75 /* the last address is "*" */
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76
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77 for ( /* void */ ; i < imip->naddrs - 1; i++) {
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78 if (in_addr == imia[i].addr) {
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79 break;
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80 }
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81 }
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82 }
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83
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84
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85 s = ngx_pcalloc(c->pool, sizeof(ngx_mail_session_t));
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86 if (s == NULL) {
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87 ngx_mail_close_connection(c);
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88 return;
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89 }
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90
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91 s->main_conf = imia[i].ctx->main_conf;
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92 s->srv_conf = imia[i].ctx->srv_conf;
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93
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94 s->addr_text = &imia[i].addr_text;
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95
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96 c->data = s;
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97 s->connection = c;
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98
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99 ngx_log_error(NGX_LOG_INFO, c->log, 0, "*%ui client %V connected to %V",
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100 c->number, &c->addr_text, s->addr_text);
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101
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102 ctx = ngx_palloc(c->pool, sizeof(ngx_mail_log_ctx_t));
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103 if (ctx == NULL) {
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104 ngx_mail_close_connection(c);
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105 return;
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106 }
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107
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108 ctx->client = &c->addr_text;
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109 ctx->session = s;
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110
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111 c->log->connection = c->number;
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112 c->log->handler = ngx_mail_log_error;
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113 c->log->data = ctx;
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114 c->log->action = "sending client greeting line";
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115
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116 c->log_error = NGX_ERROR_INFO;
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117
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118 #if (NGX_MAIL_SSL)
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119
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120 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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121
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122 if (sslcf->enable) {
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123 ngx_mail_ssl_init_connection(&sslcf->ssl, c);
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124 return;
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125 }
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126
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127 #endif
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128
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129 ngx_mail_init_session(c);
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130 }
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131
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132
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133 #if (NGX_MAIL_SSL)
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134
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336
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135 void
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290
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136 ngx_mail_starttls_handler(ngx_event_t *rev)
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137 {
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138 ngx_connection_t *c;
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139 ngx_mail_session_t *s;
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140 ngx_mail_ssl_conf_t *sslcf;
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141
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142 c = rev->data;
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143 s = c->data;
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144 s->starttls = 1;
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145
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146 c->log->action = "in starttls state";
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147
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148 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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149
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150 ngx_mail_ssl_init_connection(&sslcf->ssl, c);
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151 }
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152
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153
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154 static void
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155 ngx_mail_ssl_init_connection(ngx_ssl_t *ssl, ngx_connection_t *c)
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156 {
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157 ngx_mail_session_t *s;
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158 ngx_mail_core_srv_conf_t *cscf;
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159
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160 if (ngx_ssl_create_connection(ssl, c, 0) == NGX_ERROR) {
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161 ngx_mail_close_connection(c);
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162 return;
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163 }
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164
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165 if (ngx_ssl_handshake(c) == NGX_AGAIN) {
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166
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167 s = c->data;
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168
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169 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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170
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171 ngx_add_timer(c->read, cscf->timeout);
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172
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173 c->ssl->handler = ngx_mail_ssl_handshake_handler;
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174
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175 return;
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176 }
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177
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178 ngx_mail_ssl_handshake_handler(c);
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179 }
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180
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181
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182 static void
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183 ngx_mail_ssl_handshake_handler(ngx_connection_t *c)
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184 {
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336
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185 ngx_mail_session_t *s;
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186 ngx_mail_core_srv_conf_t *cscf;
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290
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187
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188 if (c->ssl->handshaked) {
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189
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190 s = c->data;
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191
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192 if (s->starttls) {
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336
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193 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
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194
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195 c->read->handler = cscf->protocol->init_protocol;
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290
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196 c->write->handler = ngx_mail_send;
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197
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336
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198 cscf->protocol->init_protocol(c->read);
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290
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199
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200 return;
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201 }
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202
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203 ngx_mail_init_session(c);
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204 return;
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205 }
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206
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207 ngx_mail_close_connection(c);
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208 }
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209
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210 #endif
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211
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212
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213 static void
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214 ngx_mail_init_session(ngx_connection_t *c)
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215 {
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216 ngx_mail_session_t *s;
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217 ngx_mail_core_srv_conf_t *cscf;
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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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336
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223 s->protocol = cscf->protocol->type;
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290
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224
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225 s->ctx = ngx_pcalloc(c->pool, sizeof(void *) * ngx_mail_max_module);
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226 if (s->ctx == NULL) {
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227 ngx_mail_session_internal_server_error(s);
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228 return;
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229 }
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230
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336
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231 c->write->handler = ngx_mail_send;
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232
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233 cscf->protocol->init_session(s, c);
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234 }
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235
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236
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237 ngx_int_t
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238 ngx_mail_salt(ngx_mail_session_t *s, ngx_connection_t *c,
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239 ngx_mail_core_srv_conf_t *cscf)
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240 {
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241 s->salt.data = ngx_palloc(c->pool,
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242 sizeof(" <18446744073709551616.@>" CRLF) - 1
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243 + NGX_TIME_T_LEN
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244 + cscf->server_name.len);
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245 if (s->salt.data == NULL) {
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246 return NGX_ERROR;
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247 }
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248
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249 s->salt.len = ngx_sprintf(s->salt.data, "<%ul.%T@%V>" CRLF,
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250 ngx_random(), ngx_time(), &cscf->server_name)
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251 - s->salt.data;
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252
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253 return NGX_OK;
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254 }
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255
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256
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257 #if (NGX_MAIL_SSL)
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258
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259 ngx_int_t
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260 ngx_mail_starttls_only(ngx_mail_session_t *s, ngx_connection_t *c)
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261 {
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262 ngx_mail_ssl_conf_t *sslcf;
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263
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264 if (c->ssl) {
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265 return 0;
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266 }
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267
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268 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module);
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269
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270 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) {
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271 return 1;
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272 }
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273
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274 return 0;
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275 }
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290
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276
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336
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277 #endif
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278
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279
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280 ngx_int_t
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281 ngx_mail_auth_plain(ngx_mail_session_t *s, ngx_connection_t *c, ngx_uint_t n)
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282 {
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283 u_char *p, *last;
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284 ngx_str_t *arg, plain;
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285
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286 arg = s->args.elts;
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287
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288 #if (NGX_DEBUG_MAIL_PASSWD)
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289 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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290 "mail auth plain: \"%V\"", &arg[n]);
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291 #endif
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292
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293 plain.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[n].len));
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294 if (plain.data == NULL){
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295 return NGX_ERROR;
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296 }
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297
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298 if (ngx_decode_base64(&plain, &arg[n]) != NGX_OK) {
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299 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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300 "client sent invalid base64 encoding in AUTH PLAIN command");
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301 return NGX_MAIL_PARSE_INVALID_COMMAND;
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302 }
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303
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304 p = plain.data;
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305 last = p + plain.len;
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306
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307 while (p < last && *p++) { /* void */ }
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308
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309 if (p == last) {
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310 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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311 "client sent invalid login in AUTH PLAIN command");
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312 return NGX_MAIL_PARSE_INVALID_COMMAND;
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313 }
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314
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315 s->login.data = p;
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316
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317 while (p < last && *p) { p++; }
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318
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319 if (p == last) {
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320 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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321 "client sent invalid password in AUTH PLAIN command");
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322 return NGX_MAIL_PARSE_INVALID_COMMAND;
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290
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323 }
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324
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336
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325 s->login.len = p++ - s->login.data;
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326
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327 s->passwd.len = last - p;
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328 s->passwd.data = p;
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329
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330 #if (NGX_DEBUG_MAIL_PASSWD)
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331 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0,
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332 "mail auth plain: \"%V\" \"%V\"", &s->login, &s->passwd);
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333 #endif
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334
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335 return NGX_DONE;
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336 }
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337
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290
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338
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336
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339 ngx_int_t
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340 ngx_mail_auth_login_username(ngx_mail_session_t *s, ngx_connection_t *c)
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341 {
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342 ngx_str_t *arg;
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343
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344 arg = s->args.elts;
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345
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346 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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347 "mail auth login username: \"%V\"", &arg[0]);
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348
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349 s->login.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len));
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350 if (s->login.data == NULL){
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351 return NGX_ERROR;
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352 }
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322
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353
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336
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354 if (ngx_decode_base64(&s->login, &arg[0]) != 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 LOGIN 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 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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361 "mail auth login username: \"%V\"", &s->login);
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362
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363 return NGX_OK;
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364 }
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365
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366
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367 ngx_int_t
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368 ngx_mail_auth_login_password(ngx_mail_session_t *s, ngx_connection_t *c)
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369 {
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370 ngx_str_t *arg;
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371
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372 arg = s->args.elts;
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373
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374 #if (NGX_DEBUG_MAIL_PASSWD)
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375 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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376 "mail auth login password: \"%V\"", &arg[0]);
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377 #endif
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378
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379 s->passwd.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len));
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380 if (s->passwd.data == NULL){
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381 return NGX_ERROR;
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382 }
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383
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384 if (ngx_decode_base64(&s->passwd, &arg[0]) != NGX_OK) {
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385 ngx_log_error(NGX_LOG_INFO, c->log, 0,
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386 "client sent invalid base64 encoding in AUTH LOGIN command");
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387 return NGX_MAIL_PARSE_INVALID_COMMAND;
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388 }
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290
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389
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336
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390 #if (NGX_DEBUG_MAIL_PASSWD)
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391 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
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392 "mail auth login password: \"%V\"", &s->passwd);
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393 #endif
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394
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395 return NGX_DONE;
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396 }
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397
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398
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399 ngx_int_t
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400 ngx_mail_auth_cram_md5_salt(ngx_mail_session_t *s, ngx_connection_t *c,
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401 char *prefix, size_t len)
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402 {
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403 u_char *p;
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404 ngx_str_t salt;
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405 ngx_uint_t n;
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406
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407 p = ngx_palloc(c->pool, len + ngx_base64_encoded_length(s->salt.len) + 2);
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408 if (p == NULL) {
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409 return NGX_ERROR;
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410 }
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411
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412 salt.data = ngx_cpymem(p, prefix, len);
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413 s->salt.len -= 2;
|
|
|
414
|
|
|
415 ngx_encode_base64(&salt, &s->salt);
|
|
|
416
|
|
|
417 s->salt.len += 2;
|
|
|
418 n = len + salt.len;
|
|
|
419 p[n++] = CR; p[n++] = LF;
|
|
|
420
|
|
|
421 s->out.len = n;
|
|
|
422 s->out.data = p;
|
|
290
|
423
|
|
336
|
424 return NGX_OK;
|
|
|
425 }
|
|
|
426
|
|
|
427
|
|
|
428 ngx_int_t
|
|
|
429 ngx_mail_auth_cram_md5(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
430 {
|
|
|
431 u_char *p, *last;
|
|
|
432 ngx_str_t *arg;
|
|
|
433
|
|
|
434 arg = s->args.elts;
|
|
|
435
|
|
|
436 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
|
|
|
437 "mail auth cram-md5: \"%V\"", &arg[0]);
|
|
290
|
438
|
|
336
|
439 s->login.data = ngx_palloc(c->pool, ngx_base64_decoded_length(arg[0].len));
|
|
|
440 if (s->login.data == NULL){
|
|
|
441 return NGX_ERROR;
|
|
|
442 }
|
|
290
|
443
|
|
336
|
444 if (ngx_decode_base64(&s->login, &arg[0]) != NGX_OK) {
|
|
|
445 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
446 "client sent invalid base64 encoding in AUTH CRAM-MD5 command");
|
|
|
447 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
448 }
|
|
|
449
|
|
|
450 p = s->login.data;
|
|
|
451 last = p + s->login.len;
|
|
|
452
|
|
|
453 while (p < last) {
|
|
|
454 if (*p++ == ' ') {
|
|
|
455 s->login.len = p - s->login.data - 1;
|
|
|
456 s->passwd.len = last - p;
|
|
|
457 s->passwd.data = p;
|
|
|
458 break;
|
|
290
|
459 }
|
|
|
460 }
|
|
|
461
|
|
336
|
462 if (s->passwd.len != 32) {
|
|
|
463 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
464 "client sent invalid CRAM-MD5 hash in AUTH CRAM-MD5 command");
|
|
|
465 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
290
|
466 }
|
|
|
467
|
|
336
|
468 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, c->log, 0,
|
|
|
469 "mail auth cram-md5: \"%V\" \"%V\"", &s->login, &s->passwd);
|
|
|
470
|
|
|
471 s->auth_method = NGX_MAIL_AUTH_CRAM_MD5;
|
|
|
472
|
|
|
473 return NGX_DONE;
|
|
290
|
474 }
|
|
|
475
|
|
|
476
|
|
|
477 void
|
|
|
478 ngx_mail_send(ngx_event_t *wev)
|
|
|
479 {
|
|
|
480 ngx_int_t n;
|
|
|
481 ngx_connection_t *c;
|
|
|
482 ngx_mail_session_t *s;
|
|
|
483 ngx_mail_core_srv_conf_t *cscf;
|
|
|
484
|
|
|
485 c = wev->data;
|
|
|
486 s = c->data;
|
|
|
487
|
|
|
488 if (wev->timedout) {
|
|
|
489 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
490 c->timedout = 1;
|
|
|
491 ngx_mail_close_connection(c);
|
|
|
492 return;
|
|
|
493 }
|
|
|
494
|
|
|
495 if (s->out.len == 0) {
|
|
|
496 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
497 ngx_mail_close_connection(c);
|
|
|
498 }
|
|
|
499
|
|
|
500 return;
|
|
|
501 }
|
|
|
502
|
|
|
503 n = c->send(c, s->out.data, s->out.len);
|
|
|
504
|
|
|
505 if (n > 0) {
|
|
|
506 s->out.len -= n;
|
|
|
507
|
|
|
508 if (wev->timer_set) {
|
|
|
509 ngx_del_timer(wev);
|
|
|
510 }
|
|
|
511
|
|
|
512 if (s->quit) {
|
|
|
513 ngx_mail_close_connection(c);
|
|
|
514 return;
|
|
|
515 }
|
|
|
516
|
|
|
517 if (s->blocked) {
|
|
|
518 c->read->handler(c->read);
|
|
|
519 }
|
|
|
520
|
|
|
521 return;
|
|
|
522 }
|
|
|
523
|
|
|
524 if (n == NGX_ERROR) {
|
|
|
525 ngx_mail_close_connection(c);
|
|
|
526 return;
|
|
|
527 }
|
|
|
528
|
|
|
529 /* n == NGX_AGAIN */
|
|
|
530
|
|
|
531 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
532
|
|
|
533 ngx_add_timer(c->write, cscf->timeout);
|
|
|
534
|
|
|
535 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
|
|
|
536 ngx_mail_close_connection(c);
|
|
|
537 return;
|
|
|
538 }
|
|
|
539 }
|
|
|
540
|
|
|
541
|
|
336
|
542 ngx_int_t
|
|
|
543 ngx_mail_read_command(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
290
|
544 {
|
|
336
|
545 ssize_t n;
|
|
|
546 ngx_int_t rc;
|
|
|
547 ngx_str_t l;
|
|
290
|
548 ngx_mail_core_srv_conf_t *cscf;
|
|
|
549
|
|
336
|
550 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last);
|
|
290
|
551
|
|
|
552 if (n == NGX_ERROR || n == 0) {
|
|
336
|
553 ngx_mail_close_connection(c);
|
|
290
|
554 return NGX_ERROR;
|
|
|
555 }
|
|
|
556
|
|
|
557 if (n > 0) {
|
|
|
558 s->buffer->last += n;
|
|
|
559 }
|
|
|
560
|
|
|
561 if (n == NGX_AGAIN) {
|
|
336
|
562 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) {
|
|
290
|
563 ngx_mail_session_internal_server_error(s);
|
|
|
564 return NGX_ERROR;
|
|
|
565 }
|
|
|
566
|
|
|
567 return NGX_AGAIN;
|
|
|
568 }
|
|
|
569
|
|
336
|
570 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
290
|
571
|
|
336
|
572 rc = cscf->protocol->parse_command(s);
|
|
290
|
573
|
|
|
574 if (rc == NGX_AGAIN) {
|
|
|
575
|
|
|
576 if (s->buffer->last < s->buffer->end) {
|
|
|
577 return rc;
|
|
|
578 }
|
|
|
579
|
|
|
580 l.len = s->buffer->last - s->buffer->start;
|
|
|
581 l.data = s->buffer->start;
|
|
|
582
|
|
336
|
583 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
290
|
584 "client sent too long command \"%V\"", &l);
|
|
|
585
|
|
|
586 s->quit = 1;
|
|
|
587
|
|
|
588 return NGX_MAIL_PARSE_INVALID_COMMAND;
|
|
|
589 }
|
|
|
590
|
|
|
591 if (rc == NGX_IMAP_NEXT || rc == NGX_MAIL_PARSE_INVALID_COMMAND) {
|
|
|
592 return rc;
|
|
|
593 }
|
|
|
594
|
|
|
595 if (rc == NGX_ERROR) {
|
|
336
|
596 ngx_mail_close_connection(c);
|
|
290
|
597 return NGX_ERROR;
|
|
|
598 }
|
|
|
599
|
|
|
600 return NGX_OK;
|
|
|
601 }
|
|
|
602
|
|
|
603
|
|
|
604 void
|
|
336
|
605 ngx_mail_auth(ngx_mail_session_t *s, ngx_connection_t *c)
|
|
|
606 {
|
|
|
607 s->args.nelts = 0;
|
|
|
608 s->buffer->pos = s->buffer->start;
|
|
|
609 s->buffer->last = s->buffer->start;
|
|
|
610 s->state = 0;
|
|
|
611
|
|
|
612 if (c->read->timer_set) {
|
|
|
613 ngx_del_timer(c->read);
|
|
|
614 }
|
|
|
615
|
|
|
616 s->login_attempt++;
|
|
|
617
|
|
|
618 ngx_mail_auth_http_init(s);
|
|
|
619 }
|
|
|
620
|
|
|
621
|
|
|
622 void
|
|
290
|
623 ngx_mail_session_internal_server_error(ngx_mail_session_t *s)
|
|
|
624 {
|
|
336
|
625 ngx_mail_core_srv_conf_t *cscf;
|
|
|
626
|
|
|
627 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
628
|
|
|
629 s->out = cscf->protocol->internal_server_error;
|
|
290
|
630 s->quit = 1;
|
|
|
631
|
|
|
632 ngx_mail_send(s->connection->write);
|
|
|
633 }
|
|
|
634
|
|
|
635
|
|
|
636 void
|
|
|
637 ngx_mail_close_connection(ngx_connection_t *c)
|
|
|
638 {
|
|
|
639 ngx_pool_t *pool;
|
|
|
640
|
|
|
641 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0,
|
|
|
642 "close mail connection: %d", c->fd);
|
|
|
643
|
|
|
644 #if (NGX_MAIL_SSL)
|
|
|
645
|
|
|
646 if (c->ssl) {
|
|
|
647 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
648 c->ssl->handler = ngx_mail_close_connection;
|
|
|
649 return;
|
|
|
650 }
|
|
|
651 }
|
|
|
652
|
|
|
653 #endif
|
|
|
654
|
|
336
|
655 #if (NGX_STAT_STUB)
|
|
|
656 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
|
657 #endif
|
|
|
658
|
|
290
|
659 c->destroyed = 1;
|
|
|
660
|
|
|
661 pool = c->pool;
|
|
|
662
|
|
|
663 ngx_close_connection(c);
|
|
|
664
|
|
|
665 ngx_destroy_pool(pool);
|
|
|
666 }
|
|
|
667
|
|
|
668
|
|
336
|
669 u_char *
|
|
290
|
670 ngx_mail_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
|
671 {
|
|
|
672 u_char *p;
|
|
|
673 ngx_mail_session_t *s;
|
|
|
674 ngx_mail_log_ctx_t *ctx;
|
|
|
675
|
|
|
676 if (log->action) {
|
|
|
677 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
|
678 len -= p - buf;
|
|
|
679 buf = p;
|
|
|
680 }
|
|
|
681
|
|
|
682 ctx = log->data;
|
|
|
683
|
|
|
684 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
|
685 len -= p - buf;
|
|
|
686 buf = p;
|
|
|
687
|
|
|
688 s = ctx->session;
|
|
|
689
|
|
|
690 if (s == NULL) {
|
|
|
691 return p;
|
|
|
692 }
|
|
|
693
|
|
336
|
694 p = ngx_snprintf(buf, len, "%s, server: %V",
|
|
|
695 s->starttls ? " using starttls" : "",
|
|
|
696 s->addr_text);
|
|
290
|
697 len -= p - buf;
|
|
|
698 buf = p;
|
|
|
699
|
|
|
700 if (s->login.len == 0) {
|
|
|
701 return p;
|
|
|
702 }
|
|
|
703
|
|
|
704 p = ngx_snprintf(buf, len, ", login: \"%V\"", &s->login);
|
|
|
705 len -= p - buf;
|
|
|
706 buf = p;
|
|
|
707
|
|
|
708 if (s->proxy == NULL) {
|
|
|
709 return p;
|
|
|
710 }
|
|
|
711
|
|
|
712 p = ngx_snprintf(buf, len, ", upstream: %V", s->proxy->upstream.name);
|
|
|
713
|
|
|
714 return p;
|
|
|
715 }
|
