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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_event_connect.h>
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11 #include <ngx_mail.h>
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12
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13
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14 typedef struct {
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15 ngx_peer_addr_t *peer;
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16
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17 ngx_msec_t timeout;
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18
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19 ngx_str_t host_header;
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20 ngx_str_t uri;
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21 ngx_str_t header;
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22
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23 ngx_array_t *headers;
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24 } ngx_mail_auth_http_conf_t;
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25
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26
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27 typedef struct ngx_mail_auth_http_ctx_s ngx_mail_auth_http_ctx_t;
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28
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29 typedef void (*ngx_mail_auth_http_handler_pt)(ngx_mail_session_t *s,
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30 ngx_mail_auth_http_ctx_t *ctx);
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31
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32 struct ngx_mail_auth_http_ctx_s {
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33 ngx_buf_t *request;
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34 ngx_buf_t *response;
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35 ngx_peer_connection_t peer;
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36
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37 ngx_mail_auth_http_handler_pt handler;
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38
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39 ngx_uint_t state;
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40 ngx_uint_t hash; /* no needed ? */
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41
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42 u_char *header_name_start;
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43 u_char *header_name_end;
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44 u_char *header_start;
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45 u_char *header_end;
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46
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47 ngx_str_t addr;
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48 ngx_str_t port;
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49 ngx_str_t err;
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50 ngx_str_t errmsg;
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51 ngx_str_t errcode;
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52
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53 time_t sleep;
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54
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55 ngx_pool_t *pool;
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56 };
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57
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58
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59 static void ngx_mail_auth_http_write_handler(ngx_event_t *wev);
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60 static void ngx_mail_auth_http_read_handler(ngx_event_t *rev);
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61 static void ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s,
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62 ngx_mail_auth_http_ctx_t *ctx);
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63 static void ngx_mail_auth_http_process_headers(ngx_mail_session_t *s,
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64 ngx_mail_auth_http_ctx_t *ctx);
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65 static void ngx_mail_auth_sleep_handler(ngx_event_t *rev);
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66 static ngx_int_t ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s,
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67 ngx_mail_auth_http_ctx_t *ctx);
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68 static void ngx_mail_auth_http_block_read(ngx_event_t *rev);
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69 static void ngx_mail_auth_http_dummy_handler(ngx_event_t *ev);
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70 static ngx_buf_t *ngx_mail_auth_http_create_request(ngx_mail_session_t *s,
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71 ngx_pool_t *pool, ngx_mail_auth_http_conf_t *ahcf);
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72 static ngx_int_t ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text,
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73 ngx_str_t *escaped);
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74
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75 static void *ngx_mail_auth_http_create_conf(ngx_conf_t *cf);
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76 static char *ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent,
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77 void *child);
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78 static char *ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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79 static char *ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd,
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80 void *conf);
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81
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82
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83 static ngx_command_t ngx_mail_auth_http_commands[] = {
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84
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85 { ngx_string("auth_http"),
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86 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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87 ngx_mail_auth_http,
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88 NGX_MAIL_SRV_CONF_OFFSET,
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89 0,
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90 NULL },
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91
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92 { ngx_string("auth_http_timeout"),
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93 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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94 ngx_conf_set_msec_slot,
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95 NGX_MAIL_SRV_CONF_OFFSET,
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96 offsetof(ngx_mail_auth_http_conf_t, timeout),
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97 NULL },
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98
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99 { ngx_string("auth_http_header"),
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100 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE2,
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101 ngx_mail_auth_http_header,
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102 NGX_MAIL_SRV_CONF_OFFSET,
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103 0,
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104 NULL },
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105
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106 ngx_null_command
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107 };
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108
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109
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110 static ngx_mail_module_t ngx_mail_auth_http_module_ctx = {
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111 NULL, /* create main configuration */
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112 NULL, /* init main configuration */
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113
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114 ngx_mail_auth_http_create_conf, /* create server configuration */
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115 ngx_mail_auth_http_merge_conf /* merge server configuration */
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116 };
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117
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118
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119 ngx_module_t ngx_mail_auth_http_module = {
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120 NGX_MODULE_V1,
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121 &ngx_mail_auth_http_module_ctx, /* module context */
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122 ngx_mail_auth_http_commands, /* module directives */
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123 NGX_MAIL_MODULE, /* module type */
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124 NULL, /* init master */
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125 NULL, /* init module */
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126 NULL, /* init process */
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127 NULL, /* init thread */
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128 NULL, /* exit thread */
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129 NULL, /* exit process */
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130 NULL, /* exit master */
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131 NGX_MODULE_V1_PADDING
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132 };
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133
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134
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135 static char *ngx_mail_auth_http_protocol[] = { "pop3", "imap", "smtp" };
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136 static ngx_str_t ngx_mail_auth_http_method[] = {
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137 ngx_string("plain"),
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138 ngx_string("plain"),
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139 ngx_string("apop"),
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140 ngx_string("cram-md5")
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141 };
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142
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143 static ngx_str_t ngx_mail_smtp_errcode = ngx_string("535 5.7.0");
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144
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145 void
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146 ngx_mail_auth_http_init(ngx_mail_session_t *s)
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147 {
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148 ngx_int_t rc;
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149 ngx_pool_t *pool;
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150 ngx_mail_auth_http_ctx_t *ctx;
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151 ngx_mail_auth_http_conf_t *ahcf;
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152
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153 s->connection->log->action = "in http auth state";
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154
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155 pool = ngx_create_pool(2048, s->connection->log);
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156 if (pool == NULL) {
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157 ngx_mail_session_internal_server_error(s);
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158 return;
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159 }
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160
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161 ctx = ngx_pcalloc(pool, sizeof(ngx_mail_auth_http_ctx_t));
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162 if (ctx == NULL) {
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163 ngx_destroy_pool(pool);
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164 ngx_mail_session_internal_server_error(s);
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165 return;
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166 }
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167
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168 ctx->pool = pool;
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169
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170 ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module);
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171
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172 ctx->request = ngx_mail_auth_http_create_request(s, pool, ahcf);
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173 if (ctx->request == NULL) {
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174 ngx_destroy_pool(ctx->pool);
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175 ngx_mail_session_internal_server_error(s);
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176 return;
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177 }
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178
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179 ngx_mail_set_ctx(s, ctx, ngx_mail_auth_http_module);
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180
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181 ctx->peer.sockaddr = ahcf->peer->sockaddr;
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182 ctx->peer.socklen = ahcf->peer->socklen;
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183 ctx->peer.name = &ahcf->peer->name;
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184 ctx->peer.get = ngx_event_get_peer;
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185 ctx->peer.log = s->connection->log;
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186 ctx->peer.log_error = NGX_ERROR_ERR;
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187
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188 rc = ngx_event_connect_peer(&ctx->peer);
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189
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190 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) {
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191 if (ctx->peer.connection) {
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192 ngx_close_connection(ctx->peer.connection);
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193 }
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194
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195 ngx_destroy_pool(ctx->pool);
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196 ngx_mail_session_internal_server_error(s);
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197 return;
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198 }
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199
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200 ctx->peer.connection->data = s;
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201 ctx->peer.connection->pool = s->connection->pool;
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202
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203 s->connection->read->handler = ngx_mail_auth_http_block_read;
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204 ctx->peer.connection->read->handler = ngx_mail_auth_http_read_handler;
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205 ctx->peer.connection->write->handler = ngx_mail_auth_http_write_handler;
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206
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207 ctx->handler = ngx_mail_auth_http_ignore_status_line;
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208
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209 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout);
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210 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout);
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211
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212 if (rc == NGX_OK) {
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213 ngx_mail_auth_http_write_handler(ctx->peer.connection->write);
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214 return;
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215 }
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216 }
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217
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218
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219 static void
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220 ngx_mail_auth_http_write_handler(ngx_event_t *wev)
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221 {
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222 ssize_t n, size;
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223 ngx_connection_t *c;
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224 ngx_mail_session_t *s;
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225 ngx_mail_auth_http_ctx_t *ctx;
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226 ngx_mail_auth_http_conf_t *ahcf;
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227
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228 c = wev->data;
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229 s = c->data;
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230
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231 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
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232
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233 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0,
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234 "mail auth http write handler");
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235
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236 if (wev->timedout) {
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237 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT,
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238 "auth http server %V timed out", ctx->peer.name);
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239 ngx_close_connection(ctx->peer.connection);
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240 ngx_destroy_pool(ctx->pool);
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241 ngx_mail_session_internal_server_error(s);
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242 return;
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243 }
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244
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245 size = ctx->request->last - ctx->request->pos;
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246
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247 n = ngx_send(c, ctx->request->pos, size);
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248
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249 if (n == NGX_ERROR) {
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250 ngx_close_connection(ctx->peer.connection);
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251 ngx_destroy_pool(ctx->pool);
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252 ngx_mail_session_internal_server_error(s);
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253 return;
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254 }
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255
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256 if (n > 0) {
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257 ctx->request->pos += n;
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258
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259 if (n == size) {
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260 wev->handler = ngx_mail_auth_http_dummy_handler;
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261
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262 if (wev->timer_set) {
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263 ngx_del_timer(wev);
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264 }
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265
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266 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) {
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267 ngx_close_connection(ctx->peer.connection);
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268 ngx_destroy_pool(ctx->pool);
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269 ngx_mail_session_internal_server_error(s);
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270 }
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271
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272 return;
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273 }
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274 }
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275
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276 if (!wev->timer_set) {
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277 ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module);
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278 ngx_add_timer(wev, ahcf->timeout);
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279 }
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280 }
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281
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282
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283 static void
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284 ngx_mail_auth_http_read_handler(ngx_event_t *rev)
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285 {
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286 ssize_t n, size;
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287 ngx_connection_t *c;
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288 ngx_mail_session_t *s;
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289 ngx_mail_auth_http_ctx_t *ctx;
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290
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291 c = rev->data;
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292 s = c->data;
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293
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294 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0,
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295 "mail auth http read handler");
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296
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297 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
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298
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299 if (rev->timedout) {
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300 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT,
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301 "auth http server %V timed out", ctx->peer.name);
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302 ngx_close_connection(ctx->peer.connection);
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303 ngx_destroy_pool(ctx->pool);
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304 ngx_mail_session_internal_server_error(s);
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305 return;
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306 }
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307
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308 if (ctx->response == NULL) {
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309 ctx->response = ngx_create_temp_buf(ctx->pool, 1024);
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310 if (ctx->response == NULL) {
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311 ngx_close_connection(ctx->peer.connection);
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312 ngx_destroy_pool(ctx->pool);
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313 ngx_mail_session_internal_server_error(s);
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314 return;
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315 }
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316 }
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317
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318 size = ctx->response->end - ctx->response->last;
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319
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320 n = ngx_recv(c, ctx->response->pos, size);
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321
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322 if (n > 0) {
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323 ctx->response->last += n;
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324
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325 ctx->handler(s, ctx);
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326 return;
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327 }
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328
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329 if (n == NGX_AGAIN) {
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330 return;
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331 }
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332
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333 ngx_close_connection(ctx->peer.connection);
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334 ngx_destroy_pool(ctx->pool);
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335 ngx_mail_session_internal_server_error(s);
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336 }
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337
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338
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339 static void
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340 ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s,
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341 ngx_mail_auth_http_ctx_t *ctx)
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342 {
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343 u_char *p, ch;
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344 enum {
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345 sw_start = 0,
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346 sw_H,
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347 sw_HT,
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348 sw_HTT,
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349 sw_HTTP,
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350 sw_skip,
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351 sw_almost_done
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352 } state;
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353
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354 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
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355 "mail auth http process status line");
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356
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357 state = ctx->state;
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358
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359 for (p = ctx->response->pos; p < ctx->response->last; p++) {
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360 ch = *p;
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361
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362 switch (state) {
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363
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364 /* "HTTP/" */
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365 case sw_start:
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366 if (ch == 'H') {
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367 state = sw_H;
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368 break;
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369 }
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370 goto next;
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371
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372 case sw_H:
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373 if (ch == 'T') {
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374 state = sw_HT;
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375 break;
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376 }
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377 goto next;
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378
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379 case sw_HT:
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380 if (ch == 'T') {
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381 state = sw_HTT;
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382 break;
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383 }
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384 goto next;
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385
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386 case sw_HTT:
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387 if (ch == 'P') {
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388 state = sw_HTTP;
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389 break;
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390 }
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391 goto next;
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392
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393 case sw_HTTP:
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394 if (ch == '/') {
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395 state = sw_skip;
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396 break;
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397 }
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398 goto next;
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399
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400 /* any text until end of line */
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401 case sw_skip:
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402 switch (ch) {
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403 case CR:
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404 state = sw_almost_done;
|
|
|
405
|
|
|
406 break;
|
|
|
407 case LF:
|
|
|
408 goto done;
|
|
|
409 }
|
|
|
410 break;
|
|
|
411
|
|
|
412 /* end of status line */
|
|
|
413 case sw_almost_done:
|
|
|
414 if (ch == LF) {
|
|
|
415 goto done;
|
|
|
416 }
|
|
|
417
|
|
|
418 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
419 "auth http server &V sent invalid response",
|
|
|
420 ctx->peer.name);
|
|
|
421 ngx_close_connection(ctx->peer.connection);
|
|
|
422 ngx_destroy_pool(ctx->pool);
|
|
|
423 ngx_mail_session_internal_server_error(s);
|
|
|
424 return;
|
|
|
425 }
|
|
|
426 }
|
|
|
427
|
|
|
428 ctx->response->pos = p;
|
|
|
429 ctx->state = state;
|
|
|
430
|
|
|
431 return;
|
|
|
432
|
|
|
433 next:
|
|
|
434
|
|
|
435 p = ctx->response->start - 1;
|
|
|
436
|
|
|
437 done:
|
|
|
438
|
|
|
439 ctx->response->pos = p + 1;
|
|
|
440 ctx->state = 0;
|
|
|
441 ctx->handler = ngx_mail_auth_http_process_headers;
|
|
|
442 ctx->handler(s, ctx);
|
|
|
443 }
|
|
|
444
|
|
|
445
|
|
|
446 static void
|
|
|
447 ngx_mail_auth_http_process_headers(ngx_mail_session_t *s,
|
|
|
448 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
449 {
|
|
|
450 u_char *p;
|
|
|
451 time_t timer;
|
|
|
452 size_t len, size;
|
|
|
453 ngx_int_t rc, port, n;
|
|
|
454 ngx_peer_addr_t *peer;
|
|
|
455 struct sockaddr_in *sin;
|
|
|
456
|
|
|
457 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
458 "mail auth http process headers");
|
|
|
459
|
|
|
460 for ( ;; ) {
|
|
|
461 rc = ngx_mail_auth_http_parse_header_line(s, ctx);
|
|
|
462
|
|
|
463 if (rc == NGX_OK) {
|
|
|
464
|
|
|
465 #if (NGX_DEBUG)
|
|
|
466 {
|
|
|
467 ngx_str_t key, value;
|
|
|
468
|
|
|
469 key.len = ctx->header_name_end - ctx->header_name_start;
|
|
|
470 key.data = ctx->header_name_start;
|
|
|
471 value.len = ctx->header_end - ctx->header_start;
|
|
|
472 value.data = ctx->header_start;
|
|
|
473
|
|
|
474 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
475 "mail auth http header: \"%V: %V\"",
|
|
|
476 &key, &value);
|
|
|
477 }
|
|
|
478 #endif
|
|
|
479
|
|
|
480 len = ctx->header_name_end - ctx->header_name_start;
|
|
|
481
|
|
|
482 if (len == sizeof("Auth-Status") - 1
|
|
|
483 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
484 (u_char *) "Auth-Status",
|
|
|
485 sizeof("Auth-Status") - 1)
|
|
|
486 == 0)
|
|
|
487 {
|
|
|
488 len = ctx->header_end - ctx->header_start;
|
|
|
489
|
|
|
490 if (len == 2
|
|
|
491 && ctx->header_start[0] == 'O'
|
|
|
492 && ctx->header_start[1] == 'K')
|
|
|
493 {
|
|
|
494 continue;
|
|
|
495 }
|
|
|
496
|
|
|
497 if (len == 4
|
|
|
498 && ctx->header_start[0] == 'W'
|
|
|
499 && ctx->header_start[1] == 'A'
|
|
|
500 && ctx->header_start[2] == 'I'
|
|
|
501 && ctx->header_start[3] == 'T')
|
|
|
502 {
|
|
|
503 s->auth_wait = 1;
|
|
|
504 continue;
|
|
|
505 }
|
|
|
506
|
|
|
507 ctx->errmsg.len = len;
|
|
|
508 ctx->errmsg.data = ctx->header_start;
|
|
|
509
|
|
|
510 switch (s->protocol) {
|
|
|
511
|
|
|
512 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
513 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1;
|
|
|
514 break;
|
|
|
515
|
|
|
516 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
517 size = s->tag.len + sizeof("NO ") - 1 + len
|
|
|
518 + sizeof(CRLF) - 1;
|
|
|
519 break;
|
|
|
520
|
|
|
521 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
522 ctx->err = ctx->errmsg;
|
|
|
523 continue;
|
|
|
524 }
|
|
|
525
|
|
|
526 p = ngx_pcalloc(s->connection->pool, size);
|
|
|
527 if (p == NULL) {
|
|
|
528 ngx_close_connection(ctx->peer.connection);
|
|
|
529 ngx_destroy_pool(ctx->pool);
|
|
|
530 ngx_mail_session_internal_server_error(s);
|
|
|
531 return;
|
|
|
532 }
|
|
|
533
|
|
|
534 ctx->err.data = p;
|
|
|
535
|
|
|
536 switch (s->protocol) {
|
|
|
537
|
|
|
538 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
539 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; *p++ = ' ';
|
|
|
540 break;
|
|
|
541
|
|
|
542 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
543 p = ngx_cpymem(p, s->tag.data, s->tag.len);
|
|
|
544 *p++ = 'N'; *p++ = 'O'; *p++ = ' ';
|
|
|
545 break;
|
|
|
546
|
|
|
547 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
548 break;
|
|
|
549 }
|
|
|
550
|
|
|
551 p = ngx_cpymem(p, ctx->header_start, len);
|
|
|
552 *p++ = CR; *p++ = LF;
|
|
|
553
|
|
|
554 ctx->err.len = p - ctx->err.data;
|
|
|
555
|
|
|
556 continue;
|
|
|
557 }
|
|
|
558
|
|
|
559 if (len == sizeof("Auth-Server") - 1
|
|
|
560 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
561 (u_char *) "Auth-Server",
|
|
|
562 sizeof("Auth-Server") - 1)
|
|
|
563 == 0)
|
|
|
564 {
|
|
|
565 ctx->addr.len = ctx->header_end - ctx->header_start;
|
|
|
566 ctx->addr.data = ctx->header_start;
|
|
|
567
|
|
|
568 continue;
|
|
|
569 }
|
|
|
570
|
|
|
571 if (len == sizeof("Auth-Port") - 1
|
|
|
572 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
573 (u_char *) "Auth-Port",
|
|
|
574 sizeof("Auth-Port") - 1)
|
|
|
575 == 0)
|
|
|
576 {
|
|
|
577 ctx->port.len = ctx->header_end - ctx->header_start;
|
|
|
578 ctx->port.data = ctx->header_start;
|
|
|
579
|
|
|
580 continue;
|
|
|
581 }
|
|
|
582
|
|
|
583 if (len == sizeof("Auth-User") - 1
|
|
|
584 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
585 (u_char *) "Auth-User",
|
|
|
586 sizeof("Auth-User") - 1)
|
|
|
587 == 0)
|
|
|
588 {
|
|
|
589 s->login.len = ctx->header_end - ctx->header_start;
|
|
|
590
|
|
|
591 s->login.data = ngx_palloc(s->connection->pool, s->login.len);
|
|
|
592 if (s->login.data == NULL) {
|
|
|
593 ngx_close_connection(ctx->peer.connection);
|
|
|
594 ngx_destroy_pool(ctx->pool);
|
|
|
595 ngx_mail_session_internal_server_error(s);
|
|
|
596 return;
|
|
|
597 }
|
|
|
598
|
|
|
599 ngx_memcpy(s->login.data, ctx->header_start, s->login.len);
|
|
|
600
|
|
|
601 continue;
|
|
|
602 }
|
|
|
603
|
|
|
604 if (len == sizeof("Auth-Pass") - 1
|
|
|
605 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
606 (u_char *) "Auth-Pass",
|
|
|
607 sizeof("Auth-Pass") - 1)
|
|
|
608 == 0)
|
|
|
609 {
|
|
|
610 s->passwd.len = ctx->header_end - ctx->header_start;
|
|
|
611
|
|
|
612 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len);
|
|
|
613 if (s->passwd.data == NULL) {
|
|
|
614 ngx_close_connection(ctx->peer.connection);
|
|
|
615 ngx_destroy_pool(ctx->pool);
|
|
|
616 ngx_mail_session_internal_server_error(s);
|
|
|
617 return;
|
|
|
618 }
|
|
|
619
|
|
|
620 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len);
|
|
|
621
|
|
|
622 continue;
|
|
|
623 }
|
|
|
624
|
|
|
625 if (len == sizeof("Auth-Wait") - 1
|
|
|
626 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
627 (u_char *) "Auth-Wait",
|
|
|
628 sizeof("Auth-Wait") - 1)
|
|
|
629 == 0)
|
|
|
630 {
|
|
|
631 n = ngx_atoi(ctx->header_start,
|
|
|
632 ctx->header_end - ctx->header_start);
|
|
|
633
|
|
|
634 if (n != NGX_ERROR) {
|
|
|
635 ctx->sleep = n;
|
|
|
636 }
|
|
|
637
|
|
|
638 continue;
|
|
|
639 }
|
|
|
640
|
|
|
641 if (len == sizeof("Auth-Error-Code") - 1
|
|
|
642 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
643 (u_char *) "Auth-Error-Code",
|
|
|
644 sizeof("Auth-Error-Code") - 1)
|
|
|
645 == 0)
|
|
|
646 {
|
|
|
647 ctx->errcode.len = ctx->header_end - ctx->header_start;
|
|
|
648
|
|
|
649 ctx->errcode.data = ngx_palloc(s->connection->pool,
|
|
|
650 ctx->errcode.len);
|
|
|
651 if (ctx->errcode.data == NULL) {
|
|
|
652 ngx_close_connection(ctx->peer.connection);
|
|
|
653 ngx_destroy_pool(ctx->pool);
|
|
|
654 ngx_mail_session_internal_server_error(s);
|
|
|
655 return;
|
|
|
656 }
|
|
|
657
|
|
|
658 ngx_memcpy(ctx->errcode.data, ctx->header_start,
|
|
|
659 ctx->errcode.len);
|
|
|
660
|
|
|
661 continue;
|
|
|
662 }
|
|
|
663
|
|
|
664 /* ignore other headers */
|
|
|
665
|
|
|
666 continue;
|
|
|
667 }
|
|
|
668
|
|
|
669 if (rc == NGX_DONE) {
|
|
|
670 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
671 "mail auth http header done");
|
|
|
672
|
|
|
673 ngx_close_connection(ctx->peer.connection);
|
|
|
674
|
|
|
675 if (ctx->err.len) {
|
|
|
676
|
|
|
677 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
|
678 "client login failed: \"%V\"", &ctx->errmsg);
|
|
|
679
|
|
|
680 if (s->protocol == NGX_MAIL_SMTP_PROTOCOL) {
|
|
|
681
|
|
|
682 if (ctx->errcode.len == 0) {
|
|
|
683 ctx->errcode = ngx_mail_smtp_errcode;
|
|
|
684 }
|
|
|
685
|
|
|
686 ctx->err.len = ctx->errcode.len + ctx->errmsg.len
|
|
|
687 + sizeof(" " CRLF) - 1;
|
|
|
688
|
|
|
689 p = ngx_palloc(s->connection->pool, ctx->err.len);
|
|
|
690 if (p == NULL) {
|
|
|
691 ngx_close_connection(ctx->peer.connection);
|
|
|
692 ngx_destroy_pool(ctx->pool);
|
|
|
693 ngx_mail_session_internal_server_error(s);
|
|
|
694 return;
|
|
|
695 }
|
|
|
696
|
|
|
697 ctx->err.data = p;
|
|
|
698
|
|
|
699 p = ngx_cpymem(p, ctx->errcode.data, ctx->errcode.len);
|
|
|
700 *p++ = ' ';
|
|
|
701 p = ngx_cpymem(p, ctx->errmsg.data, ctx->errmsg.len);
|
|
|
702 *p++ = CR; *p = LF;
|
|
|
703 }
|
|
|
704
|
|
|
705 s->out = ctx->err;
|
|
|
706 timer = ctx->sleep;
|
|
|
707
|
|
|
708 ngx_destroy_pool(ctx->pool);
|
|
|
709
|
|
|
710 if (timer == 0) {
|
|
|
711 s->quit = 1;
|
|
|
712 ngx_mail_send(s->connection->write);
|
|
|
713 return;
|
|
|
714 }
|
|
|
715
|
|
|
716 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
717
|
|
|
718 s->connection->read->handler = ngx_mail_auth_sleep_handler;
|
|
|
719
|
|
|
720 return;
|
|
|
721 }
|
|
|
722
|
|
|
723 if (s->auth_wait) {
|
|
|
724 timer = ctx->sleep;
|
|
|
725
|
|
|
726 ngx_destroy_pool(ctx->pool);
|
|
|
727
|
|
|
728 if (timer == 0) {
|
|
|
729 ngx_mail_auth_http_init(s);
|
|
|
730 return;
|
|
|
731 }
|
|
|
732
|
|
|
733 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
734
|
|
|
735 s->connection->read->handler = ngx_mail_auth_sleep_handler;
|
|
|
736
|
|
|
737 return;
|
|
|
738 }
|
|
|
739
|
|
|
740 if (ctx->addr.len == 0 || ctx->port.len == 0) {
|
|
|
741 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
742 "auth http server %V did not send server or port",
|
|
|
743 ctx->peer.name);
|
|
|
744 ngx_destroy_pool(ctx->pool);
|
|
|
745 ngx_mail_session_internal_server_error(s);
|
|
|
746 return;
|
|
|
747 }
|
|
|
748
|
|
|
749 if (s->passwd.data == NULL && s->protocol != NGX_MAIL_SMTP_PROTOCOL)
|
|
|
750 {
|
|
|
751 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
752 "auth http server %V did not send password",
|
|
|
753 ctx->peer.name);
|
|
|
754 ngx_destroy_pool(ctx->pool);
|
|
|
755 ngx_mail_session_internal_server_error(s);
|
|
|
756 return;
|
|
|
757 }
|
|
|
758
|
|
|
759 peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_peer_addr_t));
|
|
|
760 if (peer == NULL) {
|
|
|
761 ngx_destroy_pool(ctx->pool);
|
|
|
762 ngx_mail_session_internal_server_error(s);
|
|
|
763 return;
|
|
|
764 }
|
|
|
765
|
|
|
766 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in));
|
|
|
767 if (sin == NULL) {
|
|
|
768 ngx_destroy_pool(ctx->pool);
|
|
|
769 ngx_mail_session_internal_server_error(s);
|
|
|
770 return;
|
|
|
771 }
|
|
|
772
|
|
|
773 sin->sin_family = AF_INET;
|
|
|
774
|
|
|
775 port = ngx_atoi(ctx->port.data, ctx->port.len);
|
|
|
776 if (port == NGX_ERROR || port < 1 || port > 65536) {
|
|
|
777 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
778 "auth http server %V sent invalid server "
|
|
|
779 "port:\"%V\"",
|
|
|
780 ctx->peer.name, &ctx->port);
|
|
|
781 ngx_destroy_pool(ctx->pool);
|
|
|
782 ngx_mail_session_internal_server_error(s);
|
|
|
783 return;
|
|
|
784 }
|
|
|
785
|
|
|
786 sin->sin_port = htons((in_port_t) port);
|
|
|
787
|
|
|
788 ctx->addr.data[ctx->addr.len] = '\0';
|
|
|
789 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data);
|
|
|
790 if (sin->sin_addr.s_addr == INADDR_NONE) {
|
|
|
791 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
792 "auth http server %V sent invalid server "
|
|
|
793 "address:\"%V\"",
|
|
|
794 ctx->peer.name, &ctx->addr);
|
|
|
795 ngx_destroy_pool(ctx->pool);
|
|
|
796 ngx_mail_session_internal_server_error(s);
|
|
|
797 return;
|
|
|
798 }
|
|
|
799
|
|
|
800 peer->sockaddr = (struct sockaddr *) sin;
|
|
|
801 peer->socklen = sizeof(struct sockaddr_in);
|
|
|
802
|
|
|
803 len = ctx->addr.len + 1 + ctx->port.len;
|
|
|
804
|
|
|
805 peer->name.len = len;
|
|
|
806
|
|
|
807 peer->name.data = ngx_palloc(s->connection->pool, len);
|
|
|
808 if (peer->name.data == NULL) {
|
|
|
809 ngx_destroy_pool(ctx->pool);
|
|
|
810 ngx_mail_session_internal_server_error(s);
|
|
|
811 return;
|
|
|
812 }
|
|
|
813
|
|
|
814 len = ctx->addr.len;
|
|
|
815
|
|
|
816 ngx_memcpy(peer->name.data, ctx->addr.data, len);
|
|
|
817
|
|
|
818 peer->name.data[len++] = ':';
|
|
|
819
|
|
|
820 ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len);
|
|
|
821
|
|
|
822 ngx_destroy_pool(ctx->pool);
|
|
|
823 ngx_mail_proxy_init(s, peer);
|
|
|
824
|
|
|
825 return;
|
|
|
826 }
|
|
|
827
|
|
|
828 if (rc == NGX_AGAIN ) {
|
|
|
829 return;
|
|
|
830 }
|
|
|
831
|
|
|
832 /* rc == NGX_ERROR */
|
|
|
833
|
|
|
834 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
835 "auth http server %V sent invalid header in response",
|
|
|
836 ctx->peer.name);
|
|
|
837 ngx_close_connection(ctx->peer.connection);
|
|
|
838 ngx_destroy_pool(ctx->pool);
|
|
|
839 ngx_mail_session_internal_server_error(s);
|
|
|
840
|
|
|
841 return;
|
|
|
842 }
|
|
|
843 }
|
|
|
844
|
|
|
845
|
|
|
846 static void
|
|
|
847 ngx_mail_auth_sleep_handler(ngx_event_t *rev)
|
|
|
848 {
|
|
|
849 ngx_connection_t *c;
|
|
|
850 ngx_mail_session_t *s;
|
|
|
851 ngx_mail_core_srv_conf_t *cscf;
|
|
|
852
|
|
|
853 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail auth sleep handler");
|
|
|
854
|
|
|
855 c = rev->data;
|
|
|
856 s = c->data;
|
|
|
857
|
|
|
858 if (rev->timedout) {
|
|
|
859
|
|
|
860 rev->timedout = 0;
|
|
|
861
|
|
|
862 if (s->auth_wait) {
|
|
|
863 s->auth_wait = 0;
|
|
|
864 ngx_mail_auth_http_init(s);
|
|
|
865 return;
|
|
|
866 }
|
|
|
867
|
|
|
868 switch (s->protocol) {
|
|
|
869
|
|
|
870 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
871 s->mail_state = ngx_pop3_start;
|
|
|
872 s->connection->read->handler = ngx_pop3_auth_state;
|
|
|
873 break;
|
|
|
874
|
|
|
875 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
876 s->mail_state = ngx_imap_start;
|
|
|
877 s->connection->read->handler = ngx_imap_auth_state;
|
|
|
878 break;
|
|
|
879
|
|
|
880 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
881 s->mail_state = ngx_smtp_start;
|
|
|
882 s->connection->read->handler = ngx_smtp_auth_state;
|
|
|
883 break;
|
|
|
884 }
|
|
|
885
|
|
|
886 s->auth_method = NGX_MAIL_AUTH_PLAIN;
|
|
|
887
|
|
|
888 c->log->action = "in auth state";
|
|
|
889
|
|
|
890 ngx_mail_send(s->connection->write);
|
|
|
891
|
|
|
892 if (c->destroyed) {
|
|
|
893 return;
|
|
|
894 }
|
|
|
895
|
|
|
896 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
897
|
|
|
898 ngx_add_timer(rev, cscf->timeout);
|
|
|
899
|
|
|
900 if (rev->ready) {
|
|
|
901 s->connection->read->handler(rev);
|
|
|
902 return;
|
|
|
903 }
|
|
|
904
|
|
|
905 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
906 ngx_mail_close_connection(s->connection);
|
|
|
907 }
|
|
|
908
|
|
|
909 return;
|
|
|
910 }
|
|
|
911
|
|
|
912 if (rev->active) {
|
|
|
913 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
914 ngx_mail_close_connection(s->connection);
|
|
|
915 }
|
|
|
916 }
|
|
|
917 }
|
|
|
918
|
|
|
919
|
|
|
920 static ngx_int_t
|
|
|
921 ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s,
|
|
|
922 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
923 {
|
|
|
924 u_char c, ch, *p;
|
|
|
925 ngx_uint_t hash;
|
|
|
926 enum {
|
|
|
927 sw_start = 0,
|
|
|
928 sw_name,
|
|
|
929 sw_space_before_value,
|
|
|
930 sw_value,
|
|
|
931 sw_space_after_value,
|
|
|
932 sw_almost_done,
|
|
|
933 sw_header_almost_done
|
|
|
934 } state;
|
|
|
935
|
|
|
936 state = ctx->state;
|
|
|
937 hash = ctx->hash;
|
|
|
938
|
|
|
939 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
940 ch = *p;
|
|
|
941
|
|
|
942 switch (state) {
|
|
|
943
|
|
|
944 /* first char */
|
|
|
945 case sw_start:
|
|
|
946
|
|
|
947 switch (ch) {
|
|
|
948 case CR:
|
|
|
949 ctx->header_end = p;
|
|
|
950 state = sw_header_almost_done;
|
|
|
951 break;
|
|
|
952 case LF:
|
|
|
953 ctx->header_end = p;
|
|
|
954 goto header_done;
|
|
|
955 default:
|
|
|
956 state = sw_name;
|
|
|
957 ctx->header_name_start = p;
|
|
|
958
|
|
|
959 c = (u_char) (ch | 0x20);
|
|
|
960 if (c >= 'a' && c <= 'z') {
|
|
|
961 hash = c;
|
|
|
962 break;
|
|
|
963 }
|
|
|
964
|
|
|
965 if (ch >= '0' && ch <= '9') {
|
|
|
966 hash = ch;
|
|
|
967 break;
|
|
|
968 }
|
|
|
969
|
|
|
970 return NGX_ERROR;
|
|
|
971 }
|
|
|
972 break;
|
|
|
973
|
|
|
974 /* header name */
|
|
|
975 case sw_name:
|
|
|
976 c = (u_char) (ch | 0x20);
|
|
|
977 if (c >= 'a' && c <= 'z') {
|
|
|
978 hash += c;
|
|
|
979 break;
|
|
|
980 }
|
|
|
981
|
|
|
982 if (ch == ':') {
|
|
|
983 ctx->header_name_end = p;
|
|
|
984 state = sw_space_before_value;
|
|
|
985 break;
|
|
|
986 }
|
|
|
987
|
|
|
988 if (ch == '-') {
|
|
|
989 hash += ch;
|
|
|
990 break;
|
|
|
991 }
|
|
|
992
|
|
|
993 if (ch >= '0' && ch <= '9') {
|
|
|
994 hash += ch;
|
|
|
995 break;
|
|
|
996 }
|
|
|
997
|
|
|
998 if (ch == CR) {
|
|
|
999 ctx->header_name_end = p;
|
|
|
1000 ctx->header_start = p;
|
|
|
1001 ctx->header_end = p;
|
|
|
1002 state = sw_almost_done;
|
|
|
1003 break;
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 if (ch == LF) {
|
|
|
1007 ctx->header_name_end = p;
|
|
|
1008 ctx->header_start = p;
|
|
|
1009 ctx->header_end = p;
|
|
|
1010 goto done;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 return NGX_ERROR;
|
|
|
1014
|
|
|
1015 /* space* before header value */
|
|
|
1016 case sw_space_before_value:
|
|
|
1017 switch (ch) {
|
|
|
1018 case ' ':
|
|
|
1019 break;
|
|
|
1020 case CR:
|
|
|
1021 ctx->header_start = p;
|
|
|
1022 ctx->header_end = p;
|
|
|
1023 state = sw_almost_done;
|
|
|
1024 break;
|
|
|
1025 case LF:
|
|
|
1026 ctx->header_start = p;
|
|
|
1027 ctx->header_end = p;
|
|
|
1028 goto done;
|
|
|
1029 default:
|
|
|
1030 ctx->header_start = p;
|
|
|
1031 state = sw_value;
|
|
|
1032 break;
|
|
|
1033 }
|
|
|
1034 break;
|
|
|
1035
|
|
|
1036 /* header value */
|
|
|
1037 case sw_value:
|
|
|
1038 switch (ch) {
|
|
|
1039 case ' ':
|
|
|
1040 ctx->header_end = p;
|
|
|
1041 state = sw_space_after_value;
|
|
|
1042 break;
|
|
|
1043 case CR:
|
|
|
1044 ctx->header_end = p;
|
|
|
1045 state = sw_almost_done;
|
|
|
1046 break;
|
|
|
1047 case LF:
|
|
|
1048 ctx->header_end = p;
|
|
|
1049 goto done;
|
|
|
1050 }
|
|
|
1051 break;
|
|
|
1052
|
|
|
1053 /* space* before end of header line */
|
|
|
1054 case sw_space_after_value:
|
|
|
1055 switch (ch) {
|
|
|
1056 case ' ':
|
|
|
1057 break;
|
|
|
1058 case CR:
|
|
|
1059 state = sw_almost_done;
|
|
|
1060 break;
|
|
|
1061 case LF:
|
|
|
1062 goto done;
|
|
|
1063 default:
|
|
|
1064 state = sw_value;
|
|
|
1065 break;
|
|
|
1066 }
|
|
|
1067 break;
|
|
|
1068
|
|
|
1069 /* end of header line */
|
|
|
1070 case sw_almost_done:
|
|
|
1071 switch (ch) {
|
|
|
1072 case LF:
|
|
|
1073 goto done;
|
|
|
1074 default:
|
|
|
1075 return NGX_ERROR;
|
|
|
1076 }
|
|
|
1077
|
|
|
1078 /* end of header */
|
|
|
1079 case sw_header_almost_done:
|
|
|
1080 switch (ch) {
|
|
|
1081 case LF:
|
|
|
1082 goto header_done;
|
|
|
1083 default:
|
|
|
1084 return NGX_ERROR;
|
|
|
1085 }
|
|
|
1086 }
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 ctx->response->pos = p;
|
|
|
1090 ctx->state = state;
|
|
|
1091 ctx->hash = hash;
|
|
|
1092
|
|
|
1093 return NGX_AGAIN;
|
|
|
1094
|
|
|
1095 done:
|
|
|
1096
|
|
|
1097 ctx->response->pos = p + 1;
|
|
|
1098 ctx->state = sw_start;
|
|
|
1099 ctx->hash = hash;
|
|
|
1100
|
|
|
1101 return NGX_OK;
|
|
|
1102
|
|
|
1103 header_done:
|
|
|
1104
|
|
|
1105 ctx->response->pos = p + 1;
|
|
|
1106 ctx->state = sw_start;
|
|
|
1107
|
|
|
1108 return NGX_DONE;
|
|
|
1109 }
|
|
|
1110
|
|
|
1111
|
|
|
1112 static void
|
|
|
1113 ngx_mail_auth_http_block_read(ngx_event_t *rev)
|
|
|
1114 {
|
|
|
1115 ngx_connection_t *c;
|
|
|
1116 ngx_mail_session_t *s;
|
|
|
1117 ngx_mail_auth_http_ctx_t *ctx;
|
|
|
1118
|
|
|
1119 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0,
|
|
|
1120 "mail auth http block read");
|
|
|
1121
|
|
|
1122 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1123 c = rev->data;
|
|
|
1124 s = c->data;
|
|
|
1125
|
|
|
1126 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
|
|
|
1127
|
|
|
1128 ngx_close_connection(ctx->peer.connection);
|
|
|
1129 ngx_destroy_pool(ctx->pool);
|
|
|
1130 ngx_mail_session_internal_server_error(s);
|
|
|
1131 }
|
|
|
1132 }
|
|
|
1133
|
|
|
1134
|
|
|
1135 static void
|
|
|
1136 ngx_mail_auth_http_dummy_handler(ngx_event_t *ev)
|
|
|
1137 {
|
|
|
1138 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, ev->log, 0,
|
|
|
1139 "mail auth http dummy handler");
|
|
|
1140 }
|
|
|
1141
|
|
|
1142
|
|
|
1143 static ngx_buf_t *
|
|
|
1144 ngx_mail_auth_http_create_request(ngx_mail_session_t *s, ngx_pool_t *pool,
|
|
|
1145 ngx_mail_auth_http_conf_t *ahcf)
|
|
|
1146 {
|
|
|
1147 size_t len;
|
|
|
1148 ngx_buf_t *b;
|
|
|
1149 ngx_str_t login, passwd;
|
|
|
1150
|
|
|
1151 if (ngx_mail_auth_http_escape(pool, &s->login, &login) != NGX_OK) {
|
|
|
1152 return NULL;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 if (ngx_mail_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) {
|
|
|
1156 return NULL;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1
|
|
|
1160 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1
|
|
|
1161 + sizeof("Auth-Method: ") - 1
|
|
|
1162 + ngx_mail_auth_http_method[s->auth_method].len
|
|
|
1163 + sizeof(CRLF) - 1
|
|
|
1164 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1
|
|
|
1165 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1
|
|
|
1166 + sizeof("Auth-Salt: ") - 1 + s->salt.len
|
|
|
1167 + sizeof("Auth-Protocol: imap" CRLF) - 1
|
|
|
1168 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN
|
|
|
1169 + sizeof(CRLF) - 1
|
|
|
1170 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len
|
|
|
1171 + sizeof(CRLF) - 1
|
|
|
1172 + sizeof(CRLF) - 1;
|
|
|
1173
|
|
|
1174 b = ngx_create_temp_buf(pool, len);
|
|
|
1175 if (b == NULL) {
|
|
|
1176 return NULL;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1);
|
|
|
1180 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len);
|
|
|
1181 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF,
|
|
|
1182 sizeof(" HTTP/1.0" CRLF) - 1);
|
|
|
1183
|
|
|
1184 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1);
|
|
|
1185 b->last = ngx_copy(b->last, ahcf->host_header.data,
|
|
|
1186 ahcf->host_header.len);
|
|
|
1187 *b->last++ = CR; *b->last++ = LF;
|
|
|
1188
|
|
|
1189 b->last = ngx_cpymem(b->last, "Auth-Method: ",
|
|
|
1190 sizeof("Auth-Method: ") - 1);
|
|
|
1191 b->last = ngx_cpymem(b->last,
|
|
|
1192 ngx_mail_auth_http_method[s->auth_method].data,
|
|
|
1193 ngx_mail_auth_http_method[s->auth_method].len);
|
|
|
1194 *b->last++ = CR; *b->last++ = LF;
|
|
|
1195
|
|
|
1196 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1);
|
|
|
1197 b->last = ngx_copy(b->last, login.data, login.len);
|
|
|
1198 *b->last++ = CR; *b->last++ = LF;
|
|
|
1199
|
|
|
1200 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1);
|
|
|
1201 b->last = ngx_copy(b->last, passwd.data, passwd.len);
|
|
|
1202 *b->last++ = CR; *b->last++ = LF;
|
|
|
1203
|
|
|
1204 if (s->auth_method != NGX_MAIL_AUTH_PLAIN && s->salt.len) {
|
|
|
1205 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1);
|
|
|
1206 b->last = ngx_copy(b->last, s->salt.data, s->salt.len);
|
|
|
1207
|
|
|
1208 s->passwd.data = NULL;
|
|
|
1209 }
|
|
|
1210
|
|
|
1211 b->last = ngx_cpymem(b->last, "Auth-Protocol: ",
|
|
|
1212 sizeof("Auth-Protocol: ") - 1);
|
|
|
1213 b->last = ngx_cpymem(b->last, ngx_mail_auth_http_protocol[s->protocol],
|
|
|
1214 sizeof("imap") - 1);
|
|
|
1215 *b->last++ = CR; *b->last++ = LF;
|
|
|
1216
|
|
|
1217 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF,
|
|
|
1218 s->login_attempt);
|
|
|
1219
|
|
|
1220 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1);
|
|
|
1221 b->last = ngx_copy(b->last, s->connection->addr_text.data,
|
|
|
1222 s->connection->addr_text.len);
|
|
|
1223 *b->last++ = CR; *b->last++ = LF;
|
|
|
1224
|
|
|
1225 if (ahcf->header.len) {
|
|
|
1226 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len);
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 /* add "\r\n" at the header end */
|
|
|
1230 *b->last++ = CR; *b->last++ = LF;
|
|
|
1231
|
|
|
1232 #if (NGX_DEBUG_MAIL_PASSWD)
|
|
|
1233 {
|
|
|
1234 ngx_str_t l;
|
|
|
1235
|
|
|
1236 l.len = b->last - b->pos;
|
|
|
1237 l.data = b->pos;
|
|
|
1238 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
1239 "mail auth http header:\n\"%V\"", &l);
|
|
|
1240 }
|
|
|
1241 #endif
|
|
|
1242
|
|
|
1243 return b;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246
|
|
|
1247 static ngx_int_t
|
|
|
1248 ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped)
|
|
|
1249 {
|
|
|
1250 u_char ch, *p;
|
|
|
1251 ngx_uint_t i, n;
|
|
|
1252
|
|
|
1253 n = 0;
|
|
|
1254
|
|
|
1255 for (i = 0; i < text->len; i++) {
|
|
|
1256 ch = text->data[i];
|
|
|
1257
|
|
|
1258 if (ch == CR || ch == LF) {
|
|
|
1259 n++;
|
|
|
1260 }
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 if (n == 0) {
|
|
|
1264 *escaped = *text;
|
|
|
1265 return NGX_OK;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 escaped->len = text->len + n * 2;
|
|
|
1269
|
|
|
1270 p = ngx_palloc(pool, escaped->len);
|
|
|
1271 if (p == NULL) {
|
|
|
1272 return NGX_ERROR;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 escaped->data = p;
|
|
|
1276
|
|
|
1277 for (i = 0; i < text->len; i++) {
|
|
|
1278 ch = text->data[i];
|
|
|
1279
|
|
|
1280 if (ch == CR) {
|
|
|
1281 *p++ = '%';
|
|
|
1282 *p++ = '0';
|
|
|
1283 *p++ = 'D';
|
|
|
1284 continue;
|
|
|
1285 }
|
|
|
1286
|
|
|
1287 if (ch == LF) {
|
|
|
1288 *p++ = '%';
|
|
|
1289 *p++ = '0';
|
|
|
1290 *p++ = 'A';
|
|
|
1291 continue;
|
|
|
1292 }
|
|
|
1293
|
|
|
1294 *p++ = ch;
|
|
|
1295 }
|
|
|
1296
|
|
|
1297 return NGX_OK;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300
|
|
|
1301 static void *
|
|
|
1302 ngx_mail_auth_http_create_conf(ngx_conf_t *cf)
|
|
|
1303 {
|
|
|
1304 ngx_mail_auth_http_conf_t *ahcf;
|
|
|
1305
|
|
|
1306 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_auth_http_conf_t));
|
|
|
1307 if (ahcf == NULL) {
|
|
|
1308 return NGX_CONF_ERROR;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 ahcf->timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1312
|
|
|
1313 return ahcf;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316
|
|
|
1317 static char *
|
|
|
1318 ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1319 {
|
|
|
1320 ngx_mail_auth_http_conf_t *prev = parent;
|
|
|
1321 ngx_mail_auth_http_conf_t *conf = child;
|
|
|
1322
|
|
|
1323 u_char *p;
|
|
|
1324 size_t len;
|
|
|
1325 ngx_uint_t i;
|
|
|
1326 ngx_table_elt_t *header;
|
|
|
1327
|
|
|
1328 if (conf->peer == NULL) {
|
|
|
1329 conf->peer = prev->peer;
|
|
|
1330 conf->host_header = prev->host_header;
|
|
|
1331 conf->uri = prev->uri;
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
|
|
1335
|
|
|
1336 if (conf->headers == NULL) {
|
|
|
1337 conf->headers = prev->headers;
|
|
|
1338 conf->header = prev->header;
|
|
|
1339 }
|
|
|
1340
|
|
|
1341 if (conf->headers && conf->header.len == 0) {
|
|
|
1342 len = 0;
|
|
|
1343 header = conf->headers->elts;
|
|
|
1344 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1345 len += header[i].key.len + 2 + header[i].value.len + 2;
|
|
|
1346 }
|
|
|
1347
|
|
|
1348 p = ngx_palloc(cf->pool, len);
|
|
|
1349 if (p == NULL) {
|
|
|
1350 return NGX_CONF_ERROR;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 conf->header.len = len;
|
|
|
1354 conf->header.data = p;
|
|
|
1355
|
|
|
1356 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1357 p = ngx_cpymem(p, header[i].key.data, header[i].key.len);
|
|
|
1358 *p++ = ':'; *p++ = ' ';
|
|
|
1359 p = ngx_cpymem(p, header[i].value.data, header[i].value.len);
|
|
|
1360 *p++ = CR; *p++ = LF;
|
|
|
1361 }
|
|
|
1362 }
|
|
|
1363
|
|
|
1364 return NGX_CONF_OK;
|
|
|
1365 }
|
|
|
1366
|
|
|
1367
|
|
|
1368 static char *
|
|
|
1369 ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1370 {
|
|
|
1371 ngx_mail_auth_http_conf_t *ahcf = conf;
|
|
|
1372
|
|
|
1373 ngx_str_t *value;
|
|
|
1374 ngx_url_t u;
|
|
|
1375
|
|
|
1376 value = cf->args->elts;
|
|
|
1377
|
|
|
1378 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
1379
|
|
|
1380 u.url = value[1];
|
|
|
1381 u.default_port = 80;
|
|
|
1382 u.uri_part = 1;
|
|
|
1383 u.one_addr = 1;
|
|
|
1384
|
|
|
1385 if (ngx_parse_url(cf, &u) != NGX_OK) {
|
|
|
1386 if (u.err) {
|
|
|
1387 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1388 "%s in auth_http \"%V\"", u.err, &u.url);
|
|
|
1389 }
|
|
|
1390 }
|
|
|
1391
|
|
|
1392 ahcf->peer = u.addrs;
|
|
|
1393
|
|
|
1394 ahcf->host_header = u.host;
|
|
|
1395 ahcf->uri = u.uri;
|
|
|
1396
|
|
|
1397 if (ahcf->uri.len == 0) {
|
|
|
1398 ahcf->uri.len = sizeof("/") - 1;
|
|
|
1399 ahcf->uri.data = (u_char *) "/";
|
|
|
1400 }
|
|
|
1401
|
|
|
1402 return NGX_CONF_OK;
|
|
|
1403 }
|
|
|
1404
|
|
|
1405
|
|
|
1406 static char *
|
|
|
1407 ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1408 {
|
|
|
1409 ngx_mail_auth_http_conf_t *ahcf = conf;
|
|
|
1410
|
|
|
1411 ngx_str_t *value;
|
|
|
1412 ngx_table_elt_t *header;
|
|
|
1413
|
|
|
1414 if (ahcf->headers == NULL) {
|
|
|
1415 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t));
|
|
|
1416 if (ahcf->headers == NULL) {
|
|
|
1417 return NGX_CONF_ERROR;
|
|
|
1418 }
|
|
|
1419 }
|
|
|
1420
|
|
|
1421 header = ngx_array_push(ahcf->headers);
|
|
|
1422 if (header == NULL) {
|
|
|
1423 return NGX_CONF_ERROR;
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 value = cf->args->elts;
|
|
|
1427
|
|
|
1428 header->key = value[1];
|
|
|
1429 header->value = value[2];
|
|
|
1430
|
|
|
1431 return NGX_CONF_OK;
|
|
|
1432 }
|
