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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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326
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24
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25 u_char *file;
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26 ngx_uint_t line;
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290
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27 } ngx_mail_auth_http_conf_t;
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28
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29
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30 typedef struct ngx_mail_auth_http_ctx_s ngx_mail_auth_http_ctx_t;
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31
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32 typedef void (*ngx_mail_auth_http_handler_pt)(ngx_mail_session_t *s,
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33 ngx_mail_auth_http_ctx_t *ctx);
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34
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35 struct ngx_mail_auth_http_ctx_s {
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36 ngx_buf_t *request;
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37 ngx_buf_t *response;
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38 ngx_peer_connection_t peer;
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39
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40 ngx_mail_auth_http_handler_pt handler;
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41
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42 ngx_uint_t state;
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43 ngx_uint_t hash; /* no needed ? */
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44
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45 u_char *header_name_start;
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46 u_char *header_name_end;
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47 u_char *header_start;
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48 u_char *header_end;
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49
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50 ngx_str_t addr;
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51 ngx_str_t port;
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52 ngx_str_t err;
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53 ngx_str_t errmsg;
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54 ngx_str_t errcode;
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55
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56 time_t sleep;
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57
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58 ngx_pool_t *pool;
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59 };
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60
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61
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62 static void ngx_mail_auth_http_write_handler(ngx_event_t *wev);
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63 static void ngx_mail_auth_http_read_handler(ngx_event_t *rev);
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64 static void ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s,
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65 ngx_mail_auth_http_ctx_t *ctx);
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66 static void ngx_mail_auth_http_process_headers(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_sleep_handler(ngx_event_t *rev);
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69 static ngx_int_t ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s,
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70 ngx_mail_auth_http_ctx_t *ctx);
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71 static void ngx_mail_auth_http_block_read(ngx_event_t *rev);
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72 static void ngx_mail_auth_http_dummy_handler(ngx_event_t *ev);
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73 static ngx_buf_t *ngx_mail_auth_http_create_request(ngx_mail_session_t *s,
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74 ngx_pool_t *pool, ngx_mail_auth_http_conf_t *ahcf);
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75 static ngx_int_t ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text,
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76 ngx_str_t *escaped);
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77
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78 static void *ngx_mail_auth_http_create_conf(ngx_conf_t *cf);
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79 static char *ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent,
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80 void *child);
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81 static char *ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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82 static char *ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd,
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83 void *conf);
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84
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85
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86 static ngx_command_t ngx_mail_auth_http_commands[] = {
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87
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88 { ngx_string("auth_http"),
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89 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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90 ngx_mail_auth_http,
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91 NGX_MAIL_SRV_CONF_OFFSET,
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92 0,
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93 NULL },
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94
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95 { ngx_string("auth_http_timeout"),
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96 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE1,
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97 ngx_conf_set_msec_slot,
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98 NGX_MAIL_SRV_CONF_OFFSET,
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99 offsetof(ngx_mail_auth_http_conf_t, timeout),
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100 NULL },
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101
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102 { ngx_string("auth_http_header"),
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103 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_TAKE2,
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104 ngx_mail_auth_http_header,
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105 NGX_MAIL_SRV_CONF_OFFSET,
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106 0,
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107 NULL },
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108
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109 ngx_null_command
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110 };
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111
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112
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113 static ngx_mail_module_t ngx_mail_auth_http_module_ctx = {
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114 NULL, /* create main configuration */
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115 NULL, /* init main configuration */
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116
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117 ngx_mail_auth_http_create_conf, /* create server configuration */
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118 ngx_mail_auth_http_merge_conf /* merge server configuration */
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119 };
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120
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121
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122 ngx_module_t ngx_mail_auth_http_module = {
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123 NGX_MODULE_V1,
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124 &ngx_mail_auth_http_module_ctx, /* module context */
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125 ngx_mail_auth_http_commands, /* module directives */
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126 NGX_MAIL_MODULE, /* module type */
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127 NULL, /* init master */
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128 NULL, /* init module */
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129 NULL, /* init process */
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130 NULL, /* init thread */
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131 NULL, /* exit thread */
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132 NULL, /* exit process */
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133 NULL, /* exit master */
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134 NGX_MODULE_V1_PADDING
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135 };
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136
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137
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138 static char *ngx_mail_auth_http_protocol[] = { "pop3", "imap", "smtp" };
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139 static ngx_str_t ngx_mail_auth_http_method[] = {
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140 ngx_string("plain"),
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141 ngx_string("plain"),
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142 ngx_string("apop"),
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143 ngx_string("cram-md5")
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144 };
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145
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146 static ngx_str_t ngx_mail_smtp_errcode = ngx_string("535 5.7.0");
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147
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148 void
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149 ngx_mail_auth_http_init(ngx_mail_session_t *s)
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150 {
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151 ngx_int_t rc;
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152 ngx_pool_t *pool;
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153 ngx_mail_auth_http_ctx_t *ctx;
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154 ngx_mail_auth_http_conf_t *ahcf;
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155
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156 s->connection->log->action = "in http auth state";
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157
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158 pool = ngx_create_pool(2048, s->connection->log);
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159 if (pool == NULL) {
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160 ngx_mail_session_internal_server_error(s);
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161 return;
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162 }
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163
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164 ctx = ngx_pcalloc(pool, sizeof(ngx_mail_auth_http_ctx_t));
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165 if (ctx == NULL) {
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166 ngx_destroy_pool(pool);
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167 ngx_mail_session_internal_server_error(s);
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168 return;
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169 }
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170
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171 ctx->pool = pool;
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172
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173 ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module);
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174
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175 ctx->request = ngx_mail_auth_http_create_request(s, pool, ahcf);
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176 if (ctx->request == NULL) {
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177 ngx_destroy_pool(ctx->pool);
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178 ngx_mail_session_internal_server_error(s);
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179 return;
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180 }
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181
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182 ngx_mail_set_ctx(s, ctx, ngx_mail_auth_http_module);
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183
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184 ctx->peer.sockaddr = ahcf->peer->sockaddr;
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185 ctx->peer.socklen = ahcf->peer->socklen;
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186 ctx->peer.name = &ahcf->peer->name;
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187 ctx->peer.get = ngx_event_get_peer;
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188 ctx->peer.log = s->connection->log;
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189 ctx->peer.log_error = NGX_ERROR_ERR;
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190
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191 rc = ngx_event_connect_peer(&ctx->peer);
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192
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193 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) {
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194 if (ctx->peer.connection) {
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195 ngx_close_connection(ctx->peer.connection);
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196 }
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197
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198 ngx_destroy_pool(ctx->pool);
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199 ngx_mail_session_internal_server_error(s);
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200 return;
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201 }
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202
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203 ctx->peer.connection->data = s;
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204 ctx->peer.connection->pool = s->connection->pool;
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205
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206 s->connection->read->handler = ngx_mail_auth_http_block_read;
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207 ctx->peer.connection->read->handler = ngx_mail_auth_http_read_handler;
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208 ctx->peer.connection->write->handler = ngx_mail_auth_http_write_handler;
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209
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210 ctx->handler = ngx_mail_auth_http_ignore_status_line;
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211
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212 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout);
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213 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout);
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214
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215 if (rc == NGX_OK) {
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216 ngx_mail_auth_http_write_handler(ctx->peer.connection->write);
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217 return;
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218 }
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219 }
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220
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221
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222 static void
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223 ngx_mail_auth_http_write_handler(ngx_event_t *wev)
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224 {
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225 ssize_t n, size;
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226 ngx_connection_t *c;
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227 ngx_mail_session_t *s;
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228 ngx_mail_auth_http_ctx_t *ctx;
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229 ngx_mail_auth_http_conf_t *ahcf;
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230
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231 c = wev->data;
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232 s = c->data;
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233
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234 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
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235
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236 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, wev->log, 0,
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237 "mail auth http write handler");
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238
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239 if (wev->timedout) {
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240 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT,
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241 "auth http server %V timed out", ctx->peer.name);
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242 ngx_close_connection(ctx->peer.connection);
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243 ngx_destroy_pool(ctx->pool);
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244 ngx_mail_session_internal_server_error(s);
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245 return;
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246 }
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247
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248 size = ctx->request->last - ctx->request->pos;
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249
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250 n = ngx_send(c, ctx->request->pos, size);
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251
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252 if (n == NGX_ERROR) {
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253 ngx_close_connection(ctx->peer.connection);
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254 ngx_destroy_pool(ctx->pool);
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255 ngx_mail_session_internal_server_error(s);
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256 return;
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257 }
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258
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259 if (n > 0) {
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260 ctx->request->pos += n;
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261
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262 if (n == size) {
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263 wev->handler = ngx_mail_auth_http_dummy_handler;
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264
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265 if (wev->timer_set) {
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266 ngx_del_timer(wev);
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267 }
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268
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269 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) {
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270 ngx_close_connection(ctx->peer.connection);
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271 ngx_destroy_pool(ctx->pool);
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272 ngx_mail_session_internal_server_error(s);
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273 }
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274
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275 return;
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276 }
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277 }
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278
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279 if (!wev->timer_set) {
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280 ahcf = ngx_mail_get_module_srv_conf(s, ngx_mail_auth_http_module);
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281 ngx_add_timer(wev, ahcf->timeout);
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282 }
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283 }
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284
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285
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286 static void
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287 ngx_mail_auth_http_read_handler(ngx_event_t *rev)
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288 {
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289 ssize_t n, size;
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290 ngx_connection_t *c;
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291 ngx_mail_session_t *s;
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292 ngx_mail_auth_http_ctx_t *ctx;
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293
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294 c = rev->data;
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295 s = c->data;
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296
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297 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0,
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298 "mail auth http read handler");
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299
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300 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
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301
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302 if (rev->timedout) {
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303 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT,
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304 "auth http server %V timed out", ctx->peer.name);
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305 ngx_close_connection(ctx->peer.connection);
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306 ngx_destroy_pool(ctx->pool);
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307 ngx_mail_session_internal_server_error(s);
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308 return;
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309 }
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310
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311 if (ctx->response == NULL) {
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312 ctx->response = ngx_create_temp_buf(ctx->pool, 1024);
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313 if (ctx->response == NULL) {
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314 ngx_close_connection(ctx->peer.connection);
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315 ngx_destroy_pool(ctx->pool);
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316 ngx_mail_session_internal_server_error(s);
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317 return;
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318 }
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319 }
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320
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321 size = ctx->response->end - ctx->response->last;
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322
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323 n = ngx_recv(c, ctx->response->pos, size);
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324
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325 if (n > 0) {
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326 ctx->response->last += n;
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327
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328 ctx->handler(s, ctx);
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329 return;
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330 }
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331
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332 if (n == NGX_AGAIN) {
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333 return;
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334 }
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335
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336 ngx_close_connection(ctx->peer.connection);
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337 ngx_destroy_pool(ctx->pool);
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338 ngx_mail_session_internal_server_error(s);
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339 }
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340
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341
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342 static void
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343 ngx_mail_auth_http_ignore_status_line(ngx_mail_session_t *s,
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344 ngx_mail_auth_http_ctx_t *ctx)
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345 {
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346 u_char *p, ch;
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347 enum {
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348 sw_start = 0,
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349 sw_H,
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350 sw_HT,
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351 sw_HTT,
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352 sw_HTTP,
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353 sw_skip,
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354 sw_almost_done
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355 } state;
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356
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357 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
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358 "mail auth http process status line");
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359
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360 state = ctx->state;
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361
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362 for (p = ctx->response->pos; p < ctx->response->last; p++) {
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363 ch = *p;
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364
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365 switch (state) {
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366
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367 /* "HTTP/" */
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368 case sw_start:
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369 if (ch == 'H') {
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370 state = sw_H;
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371 break;
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372 }
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373 goto next;
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374
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375 case sw_H:
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376 if (ch == 'T') {
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377 state = sw_HT;
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378 break;
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379 }
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380 goto next;
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381
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382 case sw_HT:
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383 if (ch == 'T') {
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384 state = sw_HTT;
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385 break;
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386 }
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387 goto next;
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388
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389 case sw_HTT:
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390 if (ch == 'P') {
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391 state = sw_HTTP;
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392 break;
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393 }
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394 goto next;
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395
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396 case sw_HTTP:
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397 if (ch == '/') {
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398 state = sw_skip;
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399 break;
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400 }
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401 goto next;
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402
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403 /* any text until end of line */
|
|
|
404 case sw_skip:
|
|
|
405 switch (ch) {
|
|
|
406 case CR:
|
|
|
407 state = sw_almost_done;
|
|
|
408
|
|
|
409 break;
|
|
|
410 case LF:
|
|
|
411 goto done;
|
|
|
412 }
|
|
|
413 break;
|
|
|
414
|
|
|
415 /* end of status line */
|
|
|
416 case sw_almost_done:
|
|
|
417 if (ch == LF) {
|
|
|
418 goto done;
|
|
|
419 }
|
|
|
420
|
|
|
421 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
422 "auth http server &V sent invalid response",
|
|
|
423 ctx->peer.name);
|
|
|
424 ngx_close_connection(ctx->peer.connection);
|
|
|
425 ngx_destroy_pool(ctx->pool);
|
|
|
426 ngx_mail_session_internal_server_error(s);
|
|
|
427 return;
|
|
|
428 }
|
|
|
429 }
|
|
|
430
|
|
|
431 ctx->response->pos = p;
|
|
|
432 ctx->state = state;
|
|
|
433
|
|
|
434 return;
|
|
|
435
|
|
|
436 next:
|
|
|
437
|
|
|
438 p = ctx->response->start - 1;
|
|
|
439
|
|
|
440 done:
|
|
|
441
|
|
|
442 ctx->response->pos = p + 1;
|
|
|
443 ctx->state = 0;
|
|
|
444 ctx->handler = ngx_mail_auth_http_process_headers;
|
|
|
445 ctx->handler(s, ctx);
|
|
|
446 }
|
|
|
447
|
|
|
448
|
|
|
449 static void
|
|
|
450 ngx_mail_auth_http_process_headers(ngx_mail_session_t *s,
|
|
|
451 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
452 {
|
|
|
453 u_char *p;
|
|
|
454 time_t timer;
|
|
|
455 size_t len, size;
|
|
|
456 ngx_int_t rc, port, n;
|
|
|
457 ngx_peer_addr_t *peer;
|
|
|
458 struct sockaddr_in *sin;
|
|
|
459
|
|
|
460 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
461 "mail auth http process headers");
|
|
|
462
|
|
|
463 for ( ;; ) {
|
|
|
464 rc = ngx_mail_auth_http_parse_header_line(s, ctx);
|
|
|
465
|
|
|
466 if (rc == NGX_OK) {
|
|
|
467
|
|
|
468 #if (NGX_DEBUG)
|
|
|
469 {
|
|
|
470 ngx_str_t key, value;
|
|
|
471
|
|
|
472 key.len = ctx->header_name_end - ctx->header_name_start;
|
|
|
473 key.data = ctx->header_name_start;
|
|
|
474 value.len = ctx->header_end - ctx->header_start;
|
|
|
475 value.data = ctx->header_start;
|
|
|
476
|
|
|
477 ngx_log_debug2(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
478 "mail auth http header: \"%V: %V\"",
|
|
|
479 &key, &value);
|
|
|
480 }
|
|
|
481 #endif
|
|
|
482
|
|
|
483 len = ctx->header_name_end - ctx->header_name_start;
|
|
|
484
|
|
|
485 if (len == sizeof("Auth-Status") - 1
|
|
|
486 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
487 (u_char *) "Auth-Status",
|
|
|
488 sizeof("Auth-Status") - 1)
|
|
|
489 == 0)
|
|
|
490 {
|
|
|
491 len = ctx->header_end - ctx->header_start;
|
|
|
492
|
|
|
493 if (len == 2
|
|
|
494 && ctx->header_start[0] == 'O'
|
|
|
495 && ctx->header_start[1] == 'K')
|
|
|
496 {
|
|
|
497 continue;
|
|
|
498 }
|
|
|
499
|
|
|
500 if (len == 4
|
|
|
501 && ctx->header_start[0] == 'W'
|
|
|
502 && ctx->header_start[1] == 'A'
|
|
|
503 && ctx->header_start[2] == 'I'
|
|
|
504 && ctx->header_start[3] == 'T')
|
|
|
505 {
|
|
|
506 s->auth_wait = 1;
|
|
|
507 continue;
|
|
|
508 }
|
|
|
509
|
|
|
510 ctx->errmsg.len = len;
|
|
|
511 ctx->errmsg.data = ctx->header_start;
|
|
|
512
|
|
|
513 switch (s->protocol) {
|
|
|
514
|
|
|
515 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
516 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1;
|
|
|
517 break;
|
|
|
518
|
|
|
519 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
520 size = s->tag.len + sizeof("NO ") - 1 + len
|
|
|
521 + sizeof(CRLF) - 1;
|
|
|
522 break;
|
|
|
523
|
|
|
524 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
525 ctx->err = ctx->errmsg;
|
|
|
526 continue;
|
|
|
527 }
|
|
|
528
|
|
|
529 p = ngx_pcalloc(s->connection->pool, size);
|
|
|
530 if (p == NULL) {
|
|
|
531 ngx_close_connection(ctx->peer.connection);
|
|
|
532 ngx_destroy_pool(ctx->pool);
|
|
|
533 ngx_mail_session_internal_server_error(s);
|
|
|
534 return;
|
|
|
535 }
|
|
|
536
|
|
|
537 ctx->err.data = p;
|
|
|
538
|
|
|
539 switch (s->protocol) {
|
|
|
540
|
|
|
541 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
542 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R'; *p++ = ' ';
|
|
|
543 break;
|
|
|
544
|
|
|
545 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
546 p = ngx_cpymem(p, s->tag.data, s->tag.len);
|
|
|
547 *p++ = 'N'; *p++ = 'O'; *p++ = ' ';
|
|
|
548 break;
|
|
|
549
|
|
|
550 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
551 break;
|
|
|
552 }
|
|
|
553
|
|
|
554 p = ngx_cpymem(p, ctx->header_start, len);
|
|
|
555 *p++ = CR; *p++ = LF;
|
|
|
556
|
|
|
557 ctx->err.len = p - ctx->err.data;
|
|
|
558
|
|
|
559 continue;
|
|
|
560 }
|
|
|
561
|
|
|
562 if (len == sizeof("Auth-Server") - 1
|
|
|
563 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
564 (u_char *) "Auth-Server",
|
|
|
565 sizeof("Auth-Server") - 1)
|
|
|
566 == 0)
|
|
|
567 {
|
|
|
568 ctx->addr.len = ctx->header_end - ctx->header_start;
|
|
|
569 ctx->addr.data = ctx->header_start;
|
|
|
570
|
|
|
571 continue;
|
|
|
572 }
|
|
|
573
|
|
|
574 if (len == sizeof("Auth-Port") - 1
|
|
|
575 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
576 (u_char *) "Auth-Port",
|
|
|
577 sizeof("Auth-Port") - 1)
|
|
|
578 == 0)
|
|
|
579 {
|
|
|
580 ctx->port.len = ctx->header_end - ctx->header_start;
|
|
|
581 ctx->port.data = ctx->header_start;
|
|
|
582
|
|
|
583 continue;
|
|
|
584 }
|
|
|
585
|
|
|
586 if (len == sizeof("Auth-User") - 1
|
|
|
587 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
588 (u_char *) "Auth-User",
|
|
|
589 sizeof("Auth-User") - 1)
|
|
|
590 == 0)
|
|
|
591 {
|
|
|
592 s->login.len = ctx->header_end - ctx->header_start;
|
|
|
593
|
|
|
594 s->login.data = ngx_palloc(s->connection->pool, s->login.len);
|
|
|
595 if (s->login.data == NULL) {
|
|
|
596 ngx_close_connection(ctx->peer.connection);
|
|
|
597 ngx_destroy_pool(ctx->pool);
|
|
|
598 ngx_mail_session_internal_server_error(s);
|
|
|
599 return;
|
|
|
600 }
|
|
|
601
|
|
|
602 ngx_memcpy(s->login.data, ctx->header_start, s->login.len);
|
|
|
603
|
|
|
604 continue;
|
|
|
605 }
|
|
|
606
|
|
|
607 if (len == sizeof("Auth-Pass") - 1
|
|
|
608 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
609 (u_char *) "Auth-Pass",
|
|
|
610 sizeof("Auth-Pass") - 1)
|
|
|
611 == 0)
|
|
|
612 {
|
|
|
613 s->passwd.len = ctx->header_end - ctx->header_start;
|
|
|
614
|
|
|
615 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len);
|
|
|
616 if (s->passwd.data == NULL) {
|
|
|
617 ngx_close_connection(ctx->peer.connection);
|
|
|
618 ngx_destroy_pool(ctx->pool);
|
|
|
619 ngx_mail_session_internal_server_error(s);
|
|
|
620 return;
|
|
|
621 }
|
|
|
622
|
|
|
623 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len);
|
|
|
624
|
|
|
625 continue;
|
|
|
626 }
|
|
|
627
|
|
|
628 if (len == sizeof("Auth-Wait") - 1
|
|
|
629 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
630 (u_char *) "Auth-Wait",
|
|
|
631 sizeof("Auth-Wait") - 1)
|
|
|
632 == 0)
|
|
|
633 {
|
|
|
634 n = ngx_atoi(ctx->header_start,
|
|
|
635 ctx->header_end - ctx->header_start);
|
|
|
636
|
|
|
637 if (n != NGX_ERROR) {
|
|
|
638 ctx->sleep = n;
|
|
|
639 }
|
|
|
640
|
|
|
641 continue;
|
|
|
642 }
|
|
|
643
|
|
|
644 if (len == sizeof("Auth-Error-Code") - 1
|
|
|
645 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
646 (u_char *) "Auth-Error-Code",
|
|
|
647 sizeof("Auth-Error-Code") - 1)
|
|
|
648 == 0)
|
|
|
649 {
|
|
|
650 ctx->errcode.len = ctx->header_end - ctx->header_start;
|
|
|
651
|
|
|
652 ctx->errcode.data = ngx_palloc(s->connection->pool,
|
|
|
653 ctx->errcode.len);
|
|
|
654 if (ctx->errcode.data == NULL) {
|
|
|
655 ngx_close_connection(ctx->peer.connection);
|
|
|
656 ngx_destroy_pool(ctx->pool);
|
|
|
657 ngx_mail_session_internal_server_error(s);
|
|
|
658 return;
|
|
|
659 }
|
|
|
660
|
|
|
661 ngx_memcpy(ctx->errcode.data, ctx->header_start,
|
|
|
662 ctx->errcode.len);
|
|
|
663
|
|
|
664 continue;
|
|
|
665 }
|
|
|
666
|
|
|
667 /* ignore other headers */
|
|
|
668
|
|
|
669 continue;
|
|
|
670 }
|
|
|
671
|
|
|
672 if (rc == NGX_DONE) {
|
|
|
673 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
674 "mail auth http header done");
|
|
|
675
|
|
|
676 ngx_close_connection(ctx->peer.connection);
|
|
|
677
|
|
|
678 if (ctx->err.len) {
|
|
|
679
|
|
|
680 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
|
681 "client login failed: \"%V\"", &ctx->errmsg);
|
|
|
682
|
|
|
683 if (s->protocol == NGX_MAIL_SMTP_PROTOCOL) {
|
|
|
684
|
|
|
685 if (ctx->errcode.len == 0) {
|
|
|
686 ctx->errcode = ngx_mail_smtp_errcode;
|
|
|
687 }
|
|
|
688
|
|
|
689 ctx->err.len = ctx->errcode.len + ctx->errmsg.len
|
|
|
690 + sizeof(" " CRLF) - 1;
|
|
|
691
|
|
296
|
692 p = ngx_palloc(s->connection->pool, ctx->err.len);
|
|
|
693 if (p == NULL) {
|
|
|
694 ngx_close_connection(ctx->peer.connection);
|
|
|
695 ngx_destroy_pool(ctx->pool);
|
|
|
696 ngx_mail_session_internal_server_error(s);
|
|
|
697 return;
|
|
|
698 }
|
|
290
|
699
|
|
296
|
700 ctx->err.data = p;
|
|
290
|
701
|
|
296
|
702 p = ngx_cpymem(p, ctx->errcode.data, ctx->errcode.len);
|
|
290
|
703 *p++ = ' ';
|
|
296
|
704 p = ngx_cpymem(p, ctx->errmsg.data, ctx->errmsg.len);
|
|
290
|
705 *p++ = CR; *p = LF;
|
|
|
706 }
|
|
|
707
|
|
|
708 s->out = ctx->err;
|
|
|
709 timer = ctx->sleep;
|
|
|
710
|
|
|
711 ngx_destroy_pool(ctx->pool);
|
|
|
712
|
|
|
713 if (timer == 0) {
|
|
|
714 s->quit = 1;
|
|
|
715 ngx_mail_send(s->connection->write);
|
|
|
716 return;
|
|
|
717 }
|
|
|
718
|
|
|
719 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
720
|
|
|
721 s->connection->read->handler = ngx_mail_auth_sleep_handler;
|
|
|
722
|
|
|
723 return;
|
|
|
724 }
|
|
|
725
|
|
|
726 if (s->auth_wait) {
|
|
|
727 timer = ctx->sleep;
|
|
|
728
|
|
|
729 ngx_destroy_pool(ctx->pool);
|
|
|
730
|
|
|
731 if (timer == 0) {
|
|
|
732 ngx_mail_auth_http_init(s);
|
|
|
733 return;
|
|
|
734 }
|
|
|
735
|
|
|
736 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
737
|
|
|
738 s->connection->read->handler = ngx_mail_auth_sleep_handler;
|
|
|
739
|
|
|
740 return;
|
|
|
741 }
|
|
|
742
|
|
|
743 if (ctx->addr.len == 0 || ctx->port.len == 0) {
|
|
|
744 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
745 "auth http server %V did not send server or port",
|
|
|
746 ctx->peer.name);
|
|
|
747 ngx_destroy_pool(ctx->pool);
|
|
|
748 ngx_mail_session_internal_server_error(s);
|
|
|
749 return;
|
|
|
750 }
|
|
|
751
|
|
|
752 if (s->passwd.data == NULL && s->protocol != NGX_MAIL_SMTP_PROTOCOL)
|
|
|
753 {
|
|
|
754 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
755 "auth http server %V did not send password",
|
|
|
756 ctx->peer.name);
|
|
|
757 ngx_destroy_pool(ctx->pool);
|
|
|
758 ngx_mail_session_internal_server_error(s);
|
|
|
759 return;
|
|
|
760 }
|
|
|
761
|
|
|
762 peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_peer_addr_t));
|
|
|
763 if (peer == NULL) {
|
|
|
764 ngx_destroy_pool(ctx->pool);
|
|
|
765 ngx_mail_session_internal_server_error(s);
|
|
|
766 return;
|
|
|
767 }
|
|
|
768
|
|
|
769 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in));
|
|
|
770 if (sin == NULL) {
|
|
|
771 ngx_destroy_pool(ctx->pool);
|
|
|
772 ngx_mail_session_internal_server_error(s);
|
|
|
773 return;
|
|
|
774 }
|
|
|
775
|
|
|
776 sin->sin_family = AF_INET;
|
|
|
777
|
|
|
778 port = ngx_atoi(ctx->port.data, ctx->port.len);
|
|
|
779 if (port == NGX_ERROR || port < 1 || port > 65536) {
|
|
|
780 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
781 "auth http server %V sent invalid server "
|
|
|
782 "port:\"%V\"",
|
|
|
783 ctx->peer.name, &ctx->port);
|
|
|
784 ngx_destroy_pool(ctx->pool);
|
|
|
785 ngx_mail_session_internal_server_error(s);
|
|
|
786 return;
|
|
|
787 }
|
|
|
788
|
|
|
789 sin->sin_port = htons((in_port_t) port);
|
|
|
790
|
|
|
791 ctx->addr.data[ctx->addr.len] = '\0';
|
|
|
792 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data);
|
|
|
793 if (sin->sin_addr.s_addr == INADDR_NONE) {
|
|
|
794 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
795 "auth http server %V sent invalid server "
|
|
|
796 "address:\"%V\"",
|
|
|
797 ctx->peer.name, &ctx->addr);
|
|
|
798 ngx_destroy_pool(ctx->pool);
|
|
|
799 ngx_mail_session_internal_server_error(s);
|
|
|
800 return;
|
|
|
801 }
|
|
|
802
|
|
|
803 peer->sockaddr = (struct sockaddr *) sin;
|
|
|
804 peer->socklen = sizeof(struct sockaddr_in);
|
|
|
805
|
|
|
806 len = ctx->addr.len + 1 + ctx->port.len;
|
|
|
807
|
|
|
808 peer->name.len = len;
|
|
|
809
|
|
|
810 peer->name.data = ngx_palloc(s->connection->pool, len);
|
|
|
811 if (peer->name.data == NULL) {
|
|
|
812 ngx_destroy_pool(ctx->pool);
|
|
|
813 ngx_mail_session_internal_server_error(s);
|
|
|
814 return;
|
|
|
815 }
|
|
|
816
|
|
|
817 len = ctx->addr.len;
|
|
|
818
|
|
|
819 ngx_memcpy(peer->name.data, ctx->addr.data, len);
|
|
|
820
|
|
|
821 peer->name.data[len++] = ':';
|
|
|
822
|
|
|
823 ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len);
|
|
|
824
|
|
|
825 ngx_destroy_pool(ctx->pool);
|
|
|
826 ngx_mail_proxy_init(s, peer);
|
|
|
827
|
|
|
828 return;
|
|
|
829 }
|
|
|
830
|
|
|
831 if (rc == NGX_AGAIN ) {
|
|
|
832 return;
|
|
|
833 }
|
|
|
834
|
|
|
835 /* rc == NGX_ERROR */
|
|
|
836
|
|
|
837 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
838 "auth http server %V sent invalid header in response",
|
|
|
839 ctx->peer.name);
|
|
|
840 ngx_close_connection(ctx->peer.connection);
|
|
|
841 ngx_destroy_pool(ctx->pool);
|
|
|
842 ngx_mail_session_internal_server_error(s);
|
|
|
843
|
|
|
844 return;
|
|
|
845 }
|
|
|
846 }
|
|
|
847
|
|
|
848
|
|
|
849 static void
|
|
|
850 ngx_mail_auth_sleep_handler(ngx_event_t *rev)
|
|
|
851 {
|
|
|
852 ngx_connection_t *c;
|
|
|
853 ngx_mail_session_t *s;
|
|
|
854 ngx_mail_core_srv_conf_t *cscf;
|
|
|
855
|
|
|
856 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0, "mail auth sleep handler");
|
|
|
857
|
|
|
858 c = rev->data;
|
|
|
859 s = c->data;
|
|
|
860
|
|
|
861 if (rev->timedout) {
|
|
|
862
|
|
|
863 rev->timedout = 0;
|
|
|
864
|
|
|
865 if (s->auth_wait) {
|
|
|
866 s->auth_wait = 0;
|
|
|
867 ngx_mail_auth_http_init(s);
|
|
|
868 return;
|
|
|
869 }
|
|
|
870
|
|
|
871 switch (s->protocol) {
|
|
|
872
|
|
|
873 case NGX_MAIL_POP3_PROTOCOL:
|
|
|
874 s->mail_state = ngx_pop3_start;
|
|
|
875 s->connection->read->handler = ngx_pop3_auth_state;
|
|
|
876 break;
|
|
|
877
|
|
|
878 case NGX_MAIL_IMAP_PROTOCOL:
|
|
|
879 s->mail_state = ngx_imap_start;
|
|
|
880 s->connection->read->handler = ngx_imap_auth_state;
|
|
|
881 break;
|
|
|
882
|
|
|
883 default: /* NGX_MAIL_SMTP_PROTOCOL */
|
|
|
884 s->mail_state = ngx_smtp_start;
|
|
|
885 s->connection->read->handler = ngx_smtp_auth_state;
|
|
|
886 break;
|
|
|
887 }
|
|
|
888
|
|
|
889 s->auth_method = NGX_MAIL_AUTH_PLAIN;
|
|
|
890
|
|
|
891 c->log->action = "in auth state";
|
|
|
892
|
|
|
893 ngx_mail_send(s->connection->write);
|
|
|
894
|
|
|
895 if (c->destroyed) {
|
|
|
896 return;
|
|
|
897 }
|
|
|
898
|
|
|
899 cscf = ngx_mail_get_module_srv_conf(s, ngx_mail_core_module);
|
|
|
900
|
|
|
901 ngx_add_timer(rev, cscf->timeout);
|
|
|
902
|
|
|
903 if (rev->ready) {
|
|
|
904 s->connection->read->handler(rev);
|
|
|
905 return;
|
|
|
906 }
|
|
|
907
|
|
|
908 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
909 ngx_mail_close_connection(s->connection);
|
|
|
910 }
|
|
|
911
|
|
|
912 return;
|
|
|
913 }
|
|
|
914
|
|
|
915 if (rev->active) {
|
|
|
916 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
917 ngx_mail_close_connection(s->connection);
|
|
|
918 }
|
|
|
919 }
|
|
|
920 }
|
|
|
921
|
|
|
922
|
|
|
923 static ngx_int_t
|
|
|
924 ngx_mail_auth_http_parse_header_line(ngx_mail_session_t *s,
|
|
|
925 ngx_mail_auth_http_ctx_t *ctx)
|
|
|
926 {
|
|
|
927 u_char c, ch, *p;
|
|
|
928 ngx_uint_t hash;
|
|
|
929 enum {
|
|
|
930 sw_start = 0,
|
|
|
931 sw_name,
|
|
|
932 sw_space_before_value,
|
|
|
933 sw_value,
|
|
|
934 sw_space_after_value,
|
|
|
935 sw_almost_done,
|
|
|
936 sw_header_almost_done
|
|
|
937 } state;
|
|
|
938
|
|
|
939 state = ctx->state;
|
|
|
940 hash = ctx->hash;
|
|
|
941
|
|
|
942 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
943 ch = *p;
|
|
|
944
|
|
|
945 switch (state) {
|
|
|
946
|
|
|
947 /* first char */
|
|
|
948 case sw_start:
|
|
|
949
|
|
|
950 switch (ch) {
|
|
|
951 case CR:
|
|
|
952 ctx->header_end = p;
|
|
|
953 state = sw_header_almost_done;
|
|
|
954 break;
|
|
|
955 case LF:
|
|
|
956 ctx->header_end = p;
|
|
|
957 goto header_done;
|
|
|
958 default:
|
|
|
959 state = sw_name;
|
|
|
960 ctx->header_name_start = p;
|
|
|
961
|
|
|
962 c = (u_char) (ch | 0x20);
|
|
|
963 if (c >= 'a' && c <= 'z') {
|
|
|
964 hash = c;
|
|
|
965 break;
|
|
|
966 }
|
|
|
967
|
|
|
968 if (ch >= '0' && ch <= '9') {
|
|
|
969 hash = ch;
|
|
|
970 break;
|
|
|
971 }
|
|
|
972
|
|
|
973 return NGX_ERROR;
|
|
|
974 }
|
|
|
975 break;
|
|
|
976
|
|
|
977 /* header name */
|
|
|
978 case sw_name:
|
|
|
979 c = (u_char) (ch | 0x20);
|
|
|
980 if (c >= 'a' && c <= 'z') {
|
|
|
981 hash += c;
|
|
|
982 break;
|
|
|
983 }
|
|
|
984
|
|
|
985 if (ch == ':') {
|
|
|
986 ctx->header_name_end = p;
|
|
|
987 state = sw_space_before_value;
|
|
|
988 break;
|
|
|
989 }
|
|
|
990
|
|
|
991 if (ch == '-') {
|
|
|
992 hash += ch;
|
|
|
993 break;
|
|
|
994 }
|
|
|
995
|
|
|
996 if (ch >= '0' && ch <= '9') {
|
|
|
997 hash += ch;
|
|
|
998 break;
|
|
|
999 }
|
|
|
1000
|
|
|
1001 if (ch == CR) {
|
|
|
1002 ctx->header_name_end = p;
|
|
|
1003 ctx->header_start = p;
|
|
|
1004 ctx->header_end = p;
|
|
|
1005 state = sw_almost_done;
|
|
|
1006 break;
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 if (ch == LF) {
|
|
|
1010 ctx->header_name_end = p;
|
|
|
1011 ctx->header_start = p;
|
|
|
1012 ctx->header_end = p;
|
|
|
1013 goto done;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 return NGX_ERROR;
|
|
|
1017
|
|
|
1018 /* space* before header value */
|
|
|
1019 case sw_space_before_value:
|
|
|
1020 switch (ch) {
|
|
|
1021 case ' ':
|
|
|
1022 break;
|
|
|
1023 case CR:
|
|
|
1024 ctx->header_start = p;
|
|
|
1025 ctx->header_end = p;
|
|
|
1026 state = sw_almost_done;
|
|
|
1027 break;
|
|
|
1028 case LF:
|
|
|
1029 ctx->header_start = p;
|
|
|
1030 ctx->header_end = p;
|
|
|
1031 goto done;
|
|
|
1032 default:
|
|
|
1033 ctx->header_start = p;
|
|
|
1034 state = sw_value;
|
|
|
1035 break;
|
|
|
1036 }
|
|
|
1037 break;
|
|
|
1038
|
|
|
1039 /* header value */
|
|
|
1040 case sw_value:
|
|
|
1041 switch (ch) {
|
|
|
1042 case ' ':
|
|
|
1043 ctx->header_end = p;
|
|
|
1044 state = sw_space_after_value;
|
|
|
1045 break;
|
|
|
1046 case CR:
|
|
|
1047 ctx->header_end = p;
|
|
|
1048 state = sw_almost_done;
|
|
|
1049 break;
|
|
|
1050 case LF:
|
|
|
1051 ctx->header_end = p;
|
|
|
1052 goto done;
|
|
|
1053 }
|
|
|
1054 break;
|
|
|
1055
|
|
|
1056 /* space* before end of header line */
|
|
|
1057 case sw_space_after_value:
|
|
|
1058 switch (ch) {
|
|
|
1059 case ' ':
|
|
|
1060 break;
|
|
|
1061 case CR:
|
|
|
1062 state = sw_almost_done;
|
|
|
1063 break;
|
|
|
1064 case LF:
|
|
|
1065 goto done;
|
|
|
1066 default:
|
|
|
1067 state = sw_value;
|
|
|
1068 break;
|
|
|
1069 }
|
|
|
1070 break;
|
|
|
1071
|
|
|
1072 /* end of header line */
|
|
|
1073 case sw_almost_done:
|
|
|
1074 switch (ch) {
|
|
|
1075 case LF:
|
|
|
1076 goto done;
|
|
|
1077 default:
|
|
|
1078 return NGX_ERROR;
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 /* end of header */
|
|
|
1082 case sw_header_almost_done:
|
|
|
1083 switch (ch) {
|
|
|
1084 case LF:
|
|
|
1085 goto header_done;
|
|
|
1086 default:
|
|
|
1087 return NGX_ERROR;
|
|
|
1088 }
|
|
|
1089 }
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 ctx->response->pos = p;
|
|
|
1093 ctx->state = state;
|
|
|
1094 ctx->hash = hash;
|
|
|
1095
|
|
|
1096 return NGX_AGAIN;
|
|
|
1097
|
|
|
1098 done:
|
|
|
1099
|
|
|
1100 ctx->response->pos = p + 1;
|
|
|
1101 ctx->state = sw_start;
|
|
|
1102 ctx->hash = hash;
|
|
|
1103
|
|
|
1104 return NGX_OK;
|
|
|
1105
|
|
|
1106 header_done:
|
|
|
1107
|
|
|
1108 ctx->response->pos = p + 1;
|
|
|
1109 ctx->state = sw_start;
|
|
|
1110
|
|
|
1111 return NGX_DONE;
|
|
|
1112 }
|
|
|
1113
|
|
|
1114
|
|
|
1115 static void
|
|
|
1116 ngx_mail_auth_http_block_read(ngx_event_t *rev)
|
|
|
1117 {
|
|
|
1118 ngx_connection_t *c;
|
|
|
1119 ngx_mail_session_t *s;
|
|
|
1120 ngx_mail_auth_http_ctx_t *ctx;
|
|
|
1121
|
|
|
1122 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, rev->log, 0,
|
|
|
1123 "mail auth http block read");
|
|
|
1124
|
|
|
1125 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1126 c = rev->data;
|
|
|
1127 s = c->data;
|
|
|
1128
|
|
|
1129 ctx = ngx_mail_get_module_ctx(s, ngx_mail_auth_http_module);
|
|
|
1130
|
|
|
1131 ngx_close_connection(ctx->peer.connection);
|
|
|
1132 ngx_destroy_pool(ctx->pool);
|
|
|
1133 ngx_mail_session_internal_server_error(s);
|
|
|
1134 }
|
|
|
1135 }
|
|
|
1136
|
|
|
1137
|
|
|
1138 static void
|
|
|
1139 ngx_mail_auth_http_dummy_handler(ngx_event_t *ev)
|
|
|
1140 {
|
|
|
1141 ngx_log_debug0(NGX_LOG_DEBUG_MAIL, ev->log, 0,
|
|
|
1142 "mail auth http dummy handler");
|
|
|
1143 }
|
|
|
1144
|
|
|
1145
|
|
|
1146 static ngx_buf_t *
|
|
|
1147 ngx_mail_auth_http_create_request(ngx_mail_session_t *s, ngx_pool_t *pool,
|
|
|
1148 ngx_mail_auth_http_conf_t *ahcf)
|
|
|
1149 {
|
|
|
1150 size_t len;
|
|
|
1151 ngx_buf_t *b;
|
|
|
1152 ngx_str_t login, passwd;
|
|
|
1153
|
|
|
1154 if (ngx_mail_auth_http_escape(pool, &s->login, &login) != NGX_OK) {
|
|
|
1155 return NULL;
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 if (ngx_mail_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) {
|
|
|
1159 return NULL;
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1
|
|
|
1163 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1
|
|
|
1164 + sizeof("Auth-Method: ") - 1
|
|
|
1165 + ngx_mail_auth_http_method[s->auth_method].len
|
|
|
1166 + sizeof(CRLF) - 1
|
|
|
1167 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1
|
|
|
1168 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1
|
|
|
1169 + sizeof("Auth-Salt: ") - 1 + s->salt.len
|
|
|
1170 + sizeof("Auth-Protocol: imap" CRLF) - 1
|
|
|
1171 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN
|
|
|
1172 + sizeof(CRLF) - 1
|
|
|
1173 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len
|
|
|
1174 + sizeof(CRLF) - 1
|
|
318
|
1175 + ahcf->header.len
|
|
290
|
1176 + sizeof(CRLF) - 1;
|
|
|
1177
|
|
|
1178 b = ngx_create_temp_buf(pool, len);
|
|
|
1179 if (b == NULL) {
|
|
|
1180 return NULL;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1);
|
|
|
1184 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len);
|
|
|
1185 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF,
|
|
|
1186 sizeof(" HTTP/1.0" CRLF) - 1);
|
|
|
1187
|
|
|
1188 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1);
|
|
|
1189 b->last = ngx_copy(b->last, ahcf->host_header.data,
|
|
|
1190 ahcf->host_header.len);
|
|
|
1191 *b->last++ = CR; *b->last++ = LF;
|
|
|
1192
|
|
|
1193 b->last = ngx_cpymem(b->last, "Auth-Method: ",
|
|
|
1194 sizeof("Auth-Method: ") - 1);
|
|
|
1195 b->last = ngx_cpymem(b->last,
|
|
|
1196 ngx_mail_auth_http_method[s->auth_method].data,
|
|
|
1197 ngx_mail_auth_http_method[s->auth_method].len);
|
|
|
1198 *b->last++ = CR; *b->last++ = LF;
|
|
|
1199
|
|
|
1200 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1);
|
|
|
1201 b->last = ngx_copy(b->last, login.data, login.len);
|
|
|
1202 *b->last++ = CR; *b->last++ = LF;
|
|
|
1203
|
|
|
1204 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1);
|
|
|
1205 b->last = ngx_copy(b->last, passwd.data, passwd.len);
|
|
|
1206 *b->last++ = CR; *b->last++ = LF;
|
|
|
1207
|
|
|
1208 if (s->auth_method != NGX_MAIL_AUTH_PLAIN && s->salt.len) {
|
|
|
1209 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1);
|
|
|
1210 b->last = ngx_copy(b->last, s->salt.data, s->salt.len);
|
|
|
1211
|
|
|
1212 s->passwd.data = NULL;
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 b->last = ngx_cpymem(b->last, "Auth-Protocol: ",
|
|
|
1216 sizeof("Auth-Protocol: ") - 1);
|
|
|
1217 b->last = ngx_cpymem(b->last, ngx_mail_auth_http_protocol[s->protocol],
|
|
|
1218 sizeof("imap") - 1);
|
|
|
1219 *b->last++ = CR; *b->last++ = LF;
|
|
|
1220
|
|
|
1221 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF,
|
|
|
1222 s->login_attempt);
|
|
|
1223
|
|
|
1224 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1);
|
|
|
1225 b->last = ngx_copy(b->last, s->connection->addr_text.data,
|
|
|
1226 s->connection->addr_text.len);
|
|
|
1227 *b->last++ = CR; *b->last++ = LF;
|
|
|
1228
|
|
|
1229 if (ahcf->header.len) {
|
|
|
1230 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len);
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 /* add "\r\n" at the header end */
|
|
|
1234 *b->last++ = CR; *b->last++ = LF;
|
|
|
1235
|
|
|
1236 #if (NGX_DEBUG_MAIL_PASSWD)
|
|
|
1237 {
|
|
|
1238 ngx_str_t l;
|
|
|
1239
|
|
|
1240 l.len = b->last - b->pos;
|
|
|
1241 l.data = b->pos;
|
|
|
1242 ngx_log_debug1(NGX_LOG_DEBUG_MAIL, s->connection->log, 0,
|
|
|
1243 "mail auth http header:\n\"%V\"", &l);
|
|
|
1244 }
|
|
|
1245 #endif
|
|
|
1246
|
|
|
1247 return b;
|
|
|
1248 }
|
|
|
1249
|
|
|
1250
|
|
|
1251 static ngx_int_t
|
|
|
1252 ngx_mail_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped)
|
|
|
1253 {
|
|
|
1254 u_char ch, *p;
|
|
|
1255 ngx_uint_t i, n;
|
|
|
1256
|
|
|
1257 n = 0;
|
|
|
1258
|
|
|
1259 for (i = 0; i < text->len; i++) {
|
|
|
1260 ch = text->data[i];
|
|
|
1261
|
|
|
1262 if (ch == CR || ch == LF) {
|
|
|
1263 n++;
|
|
|
1264 }
|
|
|
1265 }
|
|
|
1266
|
|
|
1267 if (n == 0) {
|
|
|
1268 *escaped = *text;
|
|
|
1269 return NGX_OK;
|
|
|
1270 }
|
|
|
1271
|
|
|
1272 escaped->len = text->len + n * 2;
|
|
|
1273
|
|
|
1274 p = ngx_palloc(pool, escaped->len);
|
|
|
1275 if (p == NULL) {
|
|
|
1276 return NGX_ERROR;
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 escaped->data = p;
|
|
|
1280
|
|
|
1281 for (i = 0; i < text->len; i++) {
|
|
|
1282 ch = text->data[i];
|
|
|
1283
|
|
|
1284 if (ch == CR) {
|
|
|
1285 *p++ = '%';
|
|
|
1286 *p++ = '0';
|
|
|
1287 *p++ = 'D';
|
|
|
1288 continue;
|
|
|
1289 }
|
|
|
1290
|
|
|
1291 if (ch == LF) {
|
|
|
1292 *p++ = '%';
|
|
|
1293 *p++ = '0';
|
|
|
1294 *p++ = 'A';
|
|
|
1295 continue;
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 *p++ = ch;
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 return NGX_OK;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304
|
|
|
1305 static void *
|
|
|
1306 ngx_mail_auth_http_create_conf(ngx_conf_t *cf)
|
|
|
1307 {
|
|
|
1308 ngx_mail_auth_http_conf_t *ahcf;
|
|
|
1309
|
|
|
1310 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_auth_http_conf_t));
|
|
|
1311 if (ahcf == NULL) {
|
|
|
1312 return NGX_CONF_ERROR;
|
|
|
1313 }
|
|
|
1314
|
|
|
1315 ahcf->timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1316
|
|
326
|
1317 ahcf->file = cf->conf_file->file.name.data;
|
|
|
1318 ahcf->line = cf->conf_file->line;
|
|
|
1319
|
|
290
|
1320 return ahcf;
|
|
|
1321 }
|
|
|
1322
|
|
|
1323
|
|
|
1324 static char *
|
|
|
1325 ngx_mail_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1326 {
|
|
|
1327 ngx_mail_auth_http_conf_t *prev = parent;
|
|
|
1328 ngx_mail_auth_http_conf_t *conf = child;
|
|
|
1329
|
|
|
1330 u_char *p;
|
|
|
1331 size_t len;
|
|
|
1332 ngx_uint_t i;
|
|
|
1333 ngx_table_elt_t *header;
|
|
|
1334
|
|
|
1335 if (conf->peer == NULL) {
|
|
|
1336 conf->peer = prev->peer;
|
|
|
1337 conf->host_header = prev->host_header;
|
|
|
1338 conf->uri = prev->uri;
|
|
326
|
1339
|
|
|
1340 if (conf->peer == NULL) {
|
|
|
1341 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
|
1342 "no \"http_auth\" is defined for server in %s:%ui",
|
|
|
1343 conf->file, conf->line);
|
|
|
1344
|
|
|
1345 return NGX_CONF_ERROR;
|
|
|
1346 }
|
|
290
|
1347 }
|
|
|
1348
|
|
|
1349 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
|
|
1350
|
|
|
1351 if (conf->headers == NULL) {
|
|
|
1352 conf->headers = prev->headers;
|
|
|
1353 conf->header = prev->header;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356 if (conf->headers && conf->header.len == 0) {
|
|
|
1357 len = 0;
|
|
|
1358 header = conf->headers->elts;
|
|
|
1359 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1360 len += header[i].key.len + 2 + header[i].value.len + 2;
|
|
|
1361 }
|
|
|
1362
|
|
|
1363 p = ngx_palloc(cf->pool, len);
|
|
|
1364 if (p == NULL) {
|
|
|
1365 return NGX_CONF_ERROR;
|
|
|
1366 }
|
|
|
1367
|
|
|
1368 conf->header.len = len;
|
|
|
1369 conf->header.data = p;
|
|
|
1370
|
|
|
1371 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1372 p = ngx_cpymem(p, header[i].key.data, header[i].key.len);
|
|
|
1373 *p++ = ':'; *p++ = ' ';
|
|
|
1374 p = ngx_cpymem(p, header[i].value.data, header[i].value.len);
|
|
|
1375 *p++ = CR; *p++ = LF;
|
|
|
1376 }
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 return NGX_CONF_OK;
|
|
|
1380 }
|
|
|
1381
|
|
|
1382
|
|
|
1383 static char *
|
|
|
1384 ngx_mail_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1385 {
|
|
|
1386 ngx_mail_auth_http_conf_t *ahcf = conf;
|
|
|
1387
|
|
|
1388 ngx_str_t *value;
|
|
|
1389 ngx_url_t u;
|
|
|
1390
|
|
|
1391 value = cf->args->elts;
|
|
|
1392
|
|
|
1393 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
1394
|
|
|
1395 u.url = value[1];
|
|
|
1396 u.default_port = 80;
|
|
|
1397 u.uri_part = 1;
|
|
|
1398 u.one_addr = 1;
|
|
|
1399
|
|
326
|
1400 if (ngx_strncmp(u.url.data, "http://", 7) == 0) {
|
|
|
1401 u.url.len -= 7;
|
|
|
1402 u.url.data += 7;
|
|
|
1403 }
|
|
|
1404
|
|
290
|
1405 if (ngx_parse_url(cf, &u) != NGX_OK) {
|
|
|
1406 if (u.err) {
|
|
|
1407 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1408 "%s in auth_http \"%V\"", u.err, &u.url);
|
|
|
1409 }
|
|
326
|
1410
|
|
|
1411 return NGX_CONF_ERROR;
|
|
290
|
1412 }
|
|
|
1413
|
|
|
1414 ahcf->peer = u.addrs;
|
|
|
1415
|
|
|
1416 ahcf->host_header = u.host;
|
|
|
1417 ahcf->uri = u.uri;
|
|
|
1418
|
|
|
1419 if (ahcf->uri.len == 0) {
|
|
|
1420 ahcf->uri.len = sizeof("/") - 1;
|
|
|
1421 ahcf->uri.data = (u_char *) "/";
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 return NGX_CONF_OK;
|
|
|
1425 }
|
|
|
1426
|
|
|
1427
|
|
|
1428 static char *
|
|
|
1429 ngx_mail_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
1430 {
|
|
|
1431 ngx_mail_auth_http_conf_t *ahcf = conf;
|
|
|
1432
|
|
|
1433 ngx_str_t *value;
|
|
|
1434 ngx_table_elt_t *header;
|
|
|
1435
|
|
|
1436 if (ahcf->headers == NULL) {
|
|
|
1437 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t));
|
|
|
1438 if (ahcf->headers == NULL) {
|
|
|
1439 return NGX_CONF_ERROR;
|
|
|
1440 }
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 header = ngx_array_push(ahcf->headers);
|
|
|
1444 if (header == NULL) {
|
|
|
1445 return NGX_CONF_ERROR;
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 value = cf->args->elts;
|
|
|
1449
|
|
|
1450 header->key = value[1];
|
|
|
1451 header->value = value[2];
|
|
|
1452
|
|
|
1453 return NGX_CONF_OK;
|
|
|
1454 }
|
