Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail_smtp_handler.c @ 2248:1adec90a0e46
disable directio for unaligned reads in Linux
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 12 Sep 2008 13:50:12 +0000 |
parents | 2a92804f4109 |
children | 8156bc03982a |
rev | line source |
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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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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> |
1136 | 10 #include <ngx_mail.h> |
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11 #include <ngx_mail_smtp_module.h> |
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12 |
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13 |
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14 static void ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx); |
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15 static void ngx_mail_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx); |
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16 static void ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c); |
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17 static void ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev); |
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18 static ngx_int_t ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, |
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19 ngx_connection_t *c); |
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20 |
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21 static ngx_int_t ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c); |
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22 static ngx_int_t ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c); |
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23 static ngx_int_t ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c); |
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24 static ngx_int_t ngx_mail_smtp_starttls(ngx_mail_session_t *s, |
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25 ngx_connection_t *c); |
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26 |
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27 static ngx_int_t ngx_mail_smtp_discard_command(ngx_mail_session_t *s, |
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28 ngx_connection_t *c, char *err); |
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29 static void ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, |
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30 ngx_connection_t *c, char *err); |
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31 |
527 | 32 |
1136 | 33 static u_char smtp_ok[] = "250 2.0.0 OK" CRLF; |
34 static u_char smtp_bye[] = "221 2.0.0 Bye" CRLF; | |
1762 | 35 static u_char smtp_starttls[] = "220 2.0.0 Start TLS" CRLF; |
1136 | 36 static u_char smtp_next[] = "334 " CRLF; |
37 static u_char smtp_username[] = "334 VXNlcm5hbWU6" CRLF; | |
38 static u_char smtp_password[] = "334 UGFzc3dvcmQ6" CRLF; | |
39 static u_char smtp_invalid_command[] = "500 5.5.1 Invalid command" CRLF; | |
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40 static u_char smtp_invalid_pipelining[] = |
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41 "503 5.5.0 Improper use of SMTP command pipelining" CRLF; |
1136 | 42 static u_char smtp_invalid_argument[] = "501 5.5.4 Invalid argument" CRLF; |
43 static u_char smtp_auth_required[] = "530 5.7.1 Authentication required" CRLF; | |
44 | |
521 | 45 |
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46 static ngx_str_t smtp_unavailable = ngx_string("[UNAVAILABLE]"); |
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47 static ngx_str_t smtp_tempunavail = ngx_string("[TEMPUNAVAIL]"); |
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48 |
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49 |
521 | 50 void |
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51 ngx_mail_smtp_init_session(ngx_mail_session_t *s, ngx_connection_t *c) |
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52 { |
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53 struct sockaddr_in *sin; |
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54 ngx_resolver_ctx_t *ctx; |
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55 ngx_mail_core_srv_conf_t *cscf; |
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56 |
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57 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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58 |
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59 if (cscf->resolver == NULL) { |
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60 s->host = smtp_unavailable; |
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61 ngx_mail_smtp_greeting(s, c); |
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62 return; |
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63 } |
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64 |
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65 c->log->action = "in resolving client address"; |
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66 |
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67 ctx = ngx_resolve_start(cscf->resolver, NULL); |
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68 if (ctx == NULL) { |
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69 ngx_mail_close_connection(c); |
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70 return; |
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71 } |
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72 |
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73 /* AF_INET only */ |
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74 |
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75 sin = (struct sockaddr_in *) c->sockaddr; |
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76 |
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77 ctx->addr = sin->sin_addr.s_addr; |
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78 ctx->handler = ngx_mail_smtp_resolve_addr_handler; |
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79 ctx->data = s; |
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80 ctx->timeout = cscf->resolver_timeout; |
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81 |
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82 if (ngx_resolve_addr(ctx) != NGX_OK) { |
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83 ngx_mail_close_connection(c); |
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84 } |
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85 } |
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86 |
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87 |
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88 static void |
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89 ngx_mail_smtp_resolve_addr_handler(ngx_resolver_ctx_t *ctx) |
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90 { |
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91 ngx_connection_t *c; |
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92 ngx_mail_session_t *s; |
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93 ngx_mail_core_srv_conf_t *cscf; |
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94 |
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95 s = ctx->data; |
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96 c = s->connection; |
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97 |
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98 if (ctx->state) { |
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99 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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100 "%V could not be resolved (%i: %s)", |
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101 &c->addr_text, ctx->state, |
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102 ngx_resolver_strerror(ctx->state)); |
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103 |
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104 if (ctx->state == NGX_RESOLVE_NXDOMAIN) { |
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105 s->host = smtp_unavailable; |
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106 |
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107 } else { |
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108 s->host = smtp_tempunavail; |
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109 } |
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110 |
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111 ngx_resolve_addr_done(ctx); |
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112 |
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113 ngx_mail_smtp_greeting(s, s->connection); |
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114 |
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115 return; |
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116 } |
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117 |
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118 c->log->action = "in resolving client hostname"; |
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119 |
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120 s->host.data = ngx_pstrdup(c->pool, &ctx->name); |
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121 if (s->host.data == NULL) { |
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122 ngx_resolve_addr_done(ctx); |
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123 ngx_mail_close_connection(c); |
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124 return; |
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125 } |
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126 |
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127 s->host.len = ctx->name.len; |
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128 |
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129 ngx_resolve_addr_done(ctx); |
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130 |
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131 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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132 "address resolved: %V", &s->host); |
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133 |
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134 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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135 |
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136 ctx = ngx_resolve_start(cscf->resolver, NULL); |
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137 if (ctx == NULL) { |
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138 ngx_mail_close_connection(c); |
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139 return; |
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140 } |
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141 |
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142 ctx->name = s->host; |
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143 ctx->type = NGX_RESOLVE_A; |
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144 ctx->handler = ngx_mail_smtp_resolve_name_handler; |
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145 ctx->data = s; |
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146 ctx->timeout = cscf->resolver_timeout; |
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147 |
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148 if (ngx_resolve_name(ctx) != NGX_OK) { |
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149 ngx_mail_close_connection(c); |
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150 } |
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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_smtp_resolve_name_handler(ngx_resolver_ctx_t *ctx) |
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156 { |
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157 in_addr_t addr; |
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158 ngx_uint_t i; |
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159 ngx_connection_t *c; |
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160 struct sockaddr_in *sin; |
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161 ngx_mail_session_t *s; |
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162 |
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163 s = ctx->data; |
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164 c = s->connection; |
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165 |
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166 if (ctx->state) { |
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167 ngx_log_error(NGX_LOG_ERR, c->log, 0, |
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168 "%V could not be resolved (%i: %s)", |
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169 &ctx->name, ctx->state, |
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170 ngx_resolver_strerror(ctx->state)); |
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171 |
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172 if (ctx->state == NGX_RESOLVE_NXDOMAIN) { |
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173 s->host = smtp_unavailable; |
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174 |
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175 } else { |
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176 s->host = smtp_tempunavail; |
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177 } |
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178 |
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179 } else { |
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180 |
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181 /* AF_INET only */ |
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182 |
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183 sin = (struct sockaddr_in *) c->sockaddr; |
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184 |
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185 for (i = 0; i < ctx->naddrs; i++) { |
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186 |
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187 addr = ctx->addrs[i]; |
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188 |
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189 ngx_log_debug4(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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190 "name was resolved to %ud.%ud.%ud.%ud", |
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191 (ntohl(addr) >> 24) & 0xff, |
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192 (ntohl(addr) >> 16) & 0xff, |
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193 (ntohl(addr) >> 8) & 0xff, |
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194 ntohl(addr) & 0xff); |
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195 |
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196 if (addr == sin->sin_addr.s_addr) { |
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197 goto found; |
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198 } |
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199 } |
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200 |
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201 s->host = smtp_unavailable; |
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202 } |
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203 |
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204 found: |
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205 |
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206 ngx_resolve_name_done(ctx); |
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207 |
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208 ngx_mail_smtp_greeting(s, c); |
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209 } |
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210 |
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211 |
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212 static void |
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213 ngx_mail_smtp_greeting(ngx_mail_session_t *s, ngx_connection_t *c) |
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214 { |
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215 ngx_msec_t timeout; |
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216 ngx_mail_core_srv_conf_t *cscf; |
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217 ngx_mail_smtp_srv_conf_t *sscf; |
641 | 218 |
1892
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219 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, c->log, 0, |
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220 "smtp greeting for \"%V\"", &s->host); |
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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 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
541 | 224 |
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225 timeout = sscf->greeting_delay ? sscf->greeting_delay : cscf->timeout; |
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226 ngx_add_timer(c->read, timeout); |
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227 |
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228 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { |
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229 ngx_mail_close_connection(c); |
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230 } |
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231 |
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232 if (sscf->greeting_delay) { |
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233 c->read->handler = ngx_mail_smtp_invalid_pipelining; |
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234 return; |
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235 } |
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236 |
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237 c->read->handler = ngx_mail_smtp_init_protocol; |
583 | 238 |
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239 s->out = sscf->greeting; |
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240 |
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241 ngx_mail_send(c->write); |
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242 } |
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243 |
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244 |
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245 static void |
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246 ngx_mail_smtp_invalid_pipelining(ngx_event_t *rev) |
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247 { |
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248 ngx_connection_t *c; |
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249 ngx_mail_session_t *s; |
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250 ngx_mail_core_srv_conf_t *cscf; |
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251 ngx_mail_smtp_srv_conf_t *sscf; |
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252 |
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253 c = rev->data; |
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254 s = c->data; |
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255 |
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256 c->log->action = "in delay pipelining state"; |
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257 |
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258 if (rev->timedout) { |
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259 |
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260 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "delay greeting"); |
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261 |
1484 | 262 rev->timedout = 0; |
263 | |
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264 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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265 |
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266 c->read->handler = ngx_mail_smtp_init_protocol; |
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267 |
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268 ngx_add_timer(c->read, cscf->timeout); |
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269 |
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270 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { |
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271 ngx_mail_close_connection(c); |
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272 return; |
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273 } |
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274 |
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275 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
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276 |
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277 s->out = sscf->greeting; |
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278 |
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279 } else { |
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280 |
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281 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "invalid pipelining"); |
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282 |
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283 if (s->buffer == NULL) { |
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284 if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { |
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285 return; |
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286 } |
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287 } |
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288 |
1481
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289 if (ngx_mail_smtp_discard_command(s, c, |
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290 "client was rejected before greeting: \"%V\"") |
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291 != NGX_OK) |
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292 { |
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293 return; |
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294 } |
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295 |
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296 s->out.len = sizeof(smtp_invalid_pipelining) - 1; |
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297 s->out.data = smtp_invalid_pipelining; |
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298 } |
539 | 299 |
1136 | 300 ngx_mail_send(c->write); |
539 | 301 } |
302 | |
303 | |
304 void | |
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305 ngx_mail_smtp_init_protocol(ngx_event_t *rev) |
539 | 306 { |
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307 ngx_connection_t *c; |
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308 ngx_mail_session_t *s; |
417
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309 |
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310 c = rev->data; |
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311 |
541 | 312 c->log->action = "in auth state"; |
313 | |
423
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314 if (rev->timedout) { |
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315 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); |
577 | 316 c->timedout = 1; |
1136 | 317 ngx_mail_close_connection(c); |
423
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318 return; |
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319 } |
420
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320 |
539 | 321 s = c->data; |
521 | 322 |
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323 if (s->buffer == NULL) { |
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324 if (ngx_mail_smtp_create_buffer(s, c) != NGX_OK) { |
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325 return; |
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326 } |
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327 } |
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328 |
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329 s->mail_state = ngx_smtp_start; |
1477 | 330 c->read->handler = ngx_mail_smtp_auth_state; |
1136 | 331 |
1477 | 332 ngx_mail_smtp_auth_state(rev); |
521 | 333 } |
334 | |
335 | |
1483
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336 static ngx_int_t |
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337 ngx_mail_smtp_create_buffer(ngx_mail_session_t *s, ngx_connection_t *c) |
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338 { |
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339 ngx_mail_smtp_srv_conf_t *sscf; |
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340 |
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341 if (ngx_array_init(&s->args, c->pool, 2, sizeof(ngx_str_t)) == NGX_ERROR) { |
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342 ngx_mail_session_internal_server_error(s); |
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343 return NGX_ERROR; |
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344 } |
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345 |
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346 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
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347 |
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348 s->buffer = ngx_create_temp_buf(c->pool, sscf->client_buffer_size); |
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349 if (s->buffer == NULL) { |
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350 ngx_mail_session_internal_server_error(s); |
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351 return NGX_ERROR; |
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352 } |
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353 |
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354 return NGX_OK; |
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355 } |
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356 |
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357 |
527 | 358 void |
1477 | 359 ngx_mail_smtp_auth_state(ngx_event_t *rev) |
420
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360 { |
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361 ngx_int_t rc; |
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362 ngx_connection_t *c; |
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363 ngx_mail_session_t *s; |
420
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364 |
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365 c = rev->data; |
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366 s = c->data; |
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367 |
1136 | 368 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp auth state"); |
421
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369 |
423
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370 if (rev->timedout) { |
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371 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out"); |
577 | 372 c->timedout = 1; |
1136 | 373 ngx_mail_close_connection(c); |
423
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374 return; |
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375 } |
420
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376 |
539 | 377 if (s->out.len) { |
1136 | 378 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, c->log, 0, "smtp send handler busy"); |
539 | 379 s->blocked = 1; |
380 return; | |
381 } | |
382 | |
383 s->blocked = 0; | |
384 | |
1482 | 385 rc = ngx_mail_read_command(s, c); |
420
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386 |
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387 if (rc == NGX_AGAIN || rc == NGX_ERROR) { |
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Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
388 return; |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
389 } |
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
390 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
391 s->out.len = sizeof(smtp_ok) - 1; |
67578e966dcc
split pop3, imap, and smtp handlers
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parents:
1472
diff
changeset
|
392 s->out.data = smtp_ok; |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
393 |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
394 if (rc == NGX_OK) { |
1136 | 395 switch (s->mail_state) { |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
396 |
1136 | 397 case ngx_smtp_start: |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
398 |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
399 switch (s->command) { |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
400 |
1136 | 401 case NGX_SMTP_HELO: |
402 case NGX_SMTP_EHLO: | |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
403 rc = ngx_mail_smtp_helo(s, c); |
809 | 404 break; |
405 | |
1136 | 406 case NGX_SMTP_AUTH: |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
407 rc = ngx_mail_smtp_auth(s, c); |
800 | 408 break; |
409 | |
1136 | 410 case NGX_SMTP_QUIT: |
539 | 411 s->quit = 1; |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
412 s->out.len = sizeof(smtp_bye) - 1; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
413 s->out.data = smtp_bye; |
527 | 414 break; |
415 | |
1136 | 416 case NGX_SMTP_MAIL: |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
417 rc = ngx_mail_smtp_mail(s, c); |
583 | 418 break; |
419 | |
1136 | 420 case NGX_SMTP_NOOP: |
421 case NGX_SMTP_RSET: | |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
422 break; |
1322 | 423 |
424 case NGX_SMTP_STARTTLS: | |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
425 rc = ngx_mail_smtp_starttls(s, c); |
1762 | 426 s->out.len = sizeof(smtp_starttls) - 1; |
427 s->out.data = smtp_starttls; | |
1322 | 428 break; |
429 | |
430 default: | |
431 rc = NGX_MAIL_PARSE_INVALID_COMMAND; | |
432 break; | |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
433 } |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
434 |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
435 break; |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
436 |
1136 | 437 case ngx_smtp_auth_login_username: |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
438 rc = ngx_mail_auth_login_username(s, c); |
809 | 439 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
440 s->out.len = sizeof(smtp_password) - 1; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
441 s->out.data = smtp_password; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
442 s->mail_state = ngx_smtp_auth_login_password; |
809 | 443 break; |
444 | |
1136 | 445 case ngx_smtp_auth_login_password: |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
446 rc = ngx_mail_auth_login_password(s, c); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
447 break; |
809 | 448 |
1136 | 449 case ngx_smtp_auth_plain: |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
450 rc = ngx_mail_auth_plain(s, c, 0); |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
451 break; |
809 | 452 |
1136 | 453 case ngx_smtp_auth_cram_md5: |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
454 rc = ngx_mail_auth_cram_md5(s, c); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
455 break; |
421
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
456 } |
01456a419cf9
nginx-0.0.10-2004-09-10-18:32:02 import
Igor Sysoev <igor@sysoev.ru>
parents:
420
diff
changeset
|
457 } |
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
458 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
459 switch (rc) { |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
460 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
461 case NGX_DONE: |
1482 | 462 ngx_mail_auth(s, c); |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
463 return; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
464 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
465 case NGX_ERROR: |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
466 ngx_mail_session_internal_server_error(s); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
467 return; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
468 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
469 case NGX_MAIL_PARSE_INVALID_COMMAND: |
1136 | 470 s->mail_state = ngx_smtp_start; |
1486
0e7074ef7303
style fix: remove trailing spaces
Igor Sysoev <igor@sysoev.ru>
parents:
1485
diff
changeset
|
471 s->state = 0; |
420
33a8253115b4
nginx-0.0.10-2004-09-09-22:55:39 import
Igor Sysoev <igor@sysoev.ru>
parents:
419
diff
changeset
|
472 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
473 s->out.len = sizeof(smtp_invalid_command) - 1; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
474 s->out.data = smtp_invalid_command; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
475 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
476 /* fall through */ |
539 | 477 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
478 case NGX_OK: |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
479 s->args.nelts = 0; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
480 s->buffer->pos = s->buffer->start; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
481 s->buffer->last = s->buffer->start; |
810 | 482 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
483 if (s->state) { |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
484 s->arg_start = s->buffer->start; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
485 } |
539 | 486 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
487 ngx_mail_send(c->write); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
488 } |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
489 } |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
490 |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
415
diff
changeset
|
491 |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
492 static ngx_int_t |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
493 ngx_mail_smtp_helo(ngx_mail_session_t *s, ngx_connection_t *c) |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
494 { |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
495 ngx_str_t *arg; |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
496 ngx_mail_smtp_srv_conf_t *sscf; |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
497 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
498 if (s->args.nelts != 1) { |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
499 s->out.len = sizeof(smtp_invalid_argument) - 1; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
500 s->out.data = smtp_invalid_argument; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
501 s->state = 0; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
502 return NGX_OK; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
503 } |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
504 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
505 arg = s->args.elts; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
506 |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
507 s->smtp_helo.len = arg[0].len; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
508 |
2049 | 509 s->smtp_helo.data = ngx_pnalloc(c->pool, arg[0].len); |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
510 if (s->smtp_helo.data == NULL) { |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
511 return NGX_ERROR; |
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
512 } |
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
513 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
514 ngx_memcpy(s->smtp_helo.data, arg[0].data, arg[0].len); |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
515 |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
516 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
517 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
518 if (s->command == NGX_SMTP_HELO) { |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
519 s->out = sscf->server_name; |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
520 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
521 } else { |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
522 s->esmtp = 1; |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
523 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
524 #if (NGX_MAIL_SSL) |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
525 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
526 if (c->ssl == NULL) { |
1704
e584e946e198
move condition declarations inside blocks where they are used
Igor Sysoev <igor@sysoev.ru>
parents:
1493
diff
changeset
|
527 ngx_mail_ssl_conf_t *sslcf; |
e584e946e198
move condition declarations inside blocks where they are used
Igor Sysoev <igor@sysoev.ru>
parents:
1493
diff
changeset
|
528 |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
529 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
894
4f7dca9c37f0
workaround for Eudora for Mac: it sends
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
530 |
1476
67578e966dcc
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Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
531 if (sslcf->starttls == NGX_MAIL_STARTTLS_ON) { |
1487
f69493e8faab
ngx_mail_pop3_module, ngx_mail_imap_module, and ngx_mail_smtp_module
Igor Sysoev <igor@sysoev.ru>
parents:
1486
diff
changeset
|
532 s->out = sscf->starttls_capability; |
1476
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
533 return NGX_OK; |
67578e966dcc
split pop3, imap, and smtp handlers
Igor Sysoev <igor@sysoev.ru>
parents:
1472
diff
changeset
|
534 } |
894
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535 |
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536 if (sslcf->starttls == NGX_MAIL_STARTTLS_ONLY) { |
1487
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diff
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537 s->out = sscf->starttls_only_capability; |
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538 return NGX_OK; |
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539 } |
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540 } |
894
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|
541 #endif |
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542 |
1487
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|
543 s->out = sscf->capability; |
420
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nginx-0.0.10-2004-09-09-22:55:39 import
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544 } |
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545 |
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546 return NGX_OK; |
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diff
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547 } |
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diff
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548 |
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549 |
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550 static ngx_int_t |
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551 ngx_mail_smtp_auth(ngx_mail_session_t *s, ngx_connection_t *c) |
525 | 552 { |
1479 | 553 ngx_int_t rc; |
1476
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554 ngx_mail_core_srv_conf_t *cscf; |
1487
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|
555 ngx_mail_smtp_srv_conf_t *sscf; |
525 | 556 |
1479 | 557 #if (NGX_MAIL_SSL) |
558 if (ngx_mail_starttls_only(s, c)) { | |
559 return NGX_MAIL_PARSE_INVALID_COMMAND; | |
539 | 560 } |
561 #endif | |
562 | |
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563 if (s->args.nelts == 0) { |
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564 s->out.len = sizeof(smtp_invalid_argument) - 1; |
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565 s->out.data = smtp_invalid_argument; |
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566 s->state = 0; |
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567 return NGX_OK; |
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568 } |
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569 |
1479 | 570 rc = ngx_mail_auth_parse(s, c); |
1476
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571 |
1479 | 572 switch (rc) { |
1476
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573 |
1479 | 574 case NGX_MAIL_AUTH_LOGIN: |
1472
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diff
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|
575 |
1479 | 576 s->out.len = sizeof(smtp_username) - 1; |
577 s->out.data = smtp_username; | |
578 s->mail_state = ngx_smtp_auth_login_username; | |
1476
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579 |
1479 | 580 return NGX_OK; |
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581 |
1479 | 582 case NGX_MAIL_AUTH_PLAIN: |
1476
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583 |
1479 | 584 s->out.len = sizeof(smtp_next) - 1; |
585 s->out.data = smtp_next; | |
586 s->mail_state = ngx_smtp_auth_plain; | |
543 | 587 |
1479 | 588 return NGX_OK; |
589 | |
590 case NGX_MAIL_AUTH_CRAM_MD5: | |
1476
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|
591 |
1487
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592 sscf = ngx_mail_get_module_srv_conf(s, ngx_mail_smtp_module); |
1476
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593 |
1487
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594 if (!(sscf->auth_methods & NGX_MAIL_AUTH_CRAM_MD5_ENABLED)) { |
1476
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595 return NGX_MAIL_PARSE_INVALID_COMMAND; |
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596 } |
479 | 597 |
1485
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598 if (s->salt.data == NULL) { |
1487
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599 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module); |
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600 |
1485
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601 if (ngx_mail_salt(s, c, cscf) != NGX_OK) { |
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602 return NGX_ERROR; |
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|
603 } |
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|
604 } |
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|
605 |
1479 | 606 if (ngx_mail_auth_cram_md5_salt(s, c, "334 ", 4) == NGX_OK) { |
607 s->mail_state = ngx_smtp_auth_cram_md5; | |
608 return NGX_OK; | |
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609 } |
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610 |
1479 | 611 return NGX_ERROR; |
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|
612 } |
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613 |
1479 | 614 return rc; |
417
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diff
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|
615 } |
539 | 616 |
617 | |
1476
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618 static ngx_int_t |
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619 ngx_mail_smtp_mail(ngx_mail_session_t *s, ngx_connection_t *c) |
541 | 620 { |
1481
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621 ngx_mail_smtp_log_rejected_command(s, c, "client was rejected: \"%V\""); |
577 | 622 |
1476
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623 s->out.len = sizeof(smtp_auth_required) - 1; |
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624 s->out.data = smtp_auth_required; |
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625 |
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626 return NGX_OK; |
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|
627 } |
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|
628 |
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|
629 |
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|
630 static ngx_int_t |
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631 ngx_mail_smtp_starttls(ngx_mail_session_t *s, ngx_connection_t *c) |
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632 { |
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633 #if (NGX_MAIL_SSL) |
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|
634 ngx_mail_ssl_conf_t *sslcf; |
541 | 635 |
1476
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|
636 if (c->ssl == NULL) { |
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637 sslcf = ngx_mail_get_module_srv_conf(s, ngx_mail_ssl_module); |
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|
638 if (sslcf->starttls) { |
541 | 639 |
1476
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|
640 /* |
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641 * RFC3207 requires us to discard any knowledge |
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642 * obtained from client before STARTTLS. |
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643 */ |
541 | 644 |
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645 s->smtp_helo.len = 0; |
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646 s->smtp_helo.data = NULL; |
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647 |
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648 c->read->handler = ngx_mail_starttls_handler; |
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649 return NGX_OK; |
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650 } |
541 | 651 } |
652 | |
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653 #endif |
541 | 654 |
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|
655 return NGX_MAIL_PARSE_INVALID_COMMAND; |
541 | 656 } |
1481
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657 |
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|
658 |
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|
659 static ngx_int_t |
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|
660 ngx_mail_smtp_discard_command(ngx_mail_session_t *s, ngx_connection_t *c, |
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|
661 char *err) |
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662 { |
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|
663 ssize_t n; |
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|
664 |
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|
665 n = c->recv(c, s->buffer->last, s->buffer->end - s->buffer->last); |
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|
666 |
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|
667 if (n == NGX_ERROR || n == 0) { |
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|
668 ngx_mail_close_connection(c); |
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|
669 return NGX_ERROR; |
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670 } |
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|
671 |
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|
672 if (n > 0) { |
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|
673 s->buffer->last += n; |
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|
674 } |
1486
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1485
diff
changeset
|
675 |
1481
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|
676 if (n == NGX_AGAIN) { |
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|
677 if (ngx_handle_read_event(c->read, 0) == NGX_ERROR) { |
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|
678 ngx_mail_session_internal_server_error(s); |
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|
679 return NGX_ERROR; |
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680 } |
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681 |
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682 return NGX_AGAIN; |
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683 } |
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684 |
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685 ngx_mail_smtp_log_rejected_command(s, c, err); |
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686 |
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687 s->buffer->pos = s->buffer->start; |
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688 s->buffer->last = s->buffer->start; |
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689 |
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690 return NGX_OK; |
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691 } |
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692 |
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693 |
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694 static void |
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695 ngx_mail_smtp_log_rejected_command(ngx_mail_session_t *s, ngx_connection_t *c, |
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696 char *err) |
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697 { |
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698 u_char ch; |
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699 ngx_str_t cmd; |
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700 ngx_uint_t i; |
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701 |
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702 if (c->log->log_level < NGX_LOG_INFO) { |
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703 return; |
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704 } |
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705 |
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706 cmd.len = s->buffer->last - s->buffer->start; |
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707 cmd.data = s->buffer->start; |
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|
708 |
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709 for (i = 0; i < cmd.len; i++) { |
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710 ch = cmd.data[i]; |
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711 |
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712 if (ch != CR && ch != LF) { |
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713 continue; |
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714 } |
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changeset
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715 |
1493
3c4111e07b58
use "_" instead of " " as new line substitute, do not delete trailing new line
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parents:
1487
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|
716 cmd.data[i] = '_'; |
1481
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717 } |
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changeset
|
718 |
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719 cmd.len = i; |
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|
720 |
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721 ngx_log_error(NGX_LOG_INFO, c->log, 0, err, &cmd); |
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722 } |