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76
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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_imap.h>
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12
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13
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14 typedef struct {
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15 ngx_peers_t *peers;
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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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122
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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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76
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24 } ngx_imap_auth_http_conf_t;
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25
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26
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27 typedef struct ngx_imap_auth_http_ctx_s ngx_imap_auth_http_ctx_t;
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28
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29 typedef void (*ngx_imap_auth_http_handler_pt)(ngx_imap_session_t *s,
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30 ngx_imap_auth_http_ctx_t *ctx);
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31
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32 struct ngx_imap_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_imap_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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116
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50 ngx_str_t errmsg;
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76
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51
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96
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52 time_t sleep;
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76
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53
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96
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54 ngx_pool_t *pool;
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76
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55 };
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56
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57
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58 static void ngx_imap_auth_http_write_handler(ngx_event_t *wev);
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59 static void ngx_imap_auth_http_read_handler(ngx_event_t *rev);
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60 static void ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s,
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61 ngx_imap_auth_http_ctx_t *ctx);
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62 static void ngx_imap_auth_http_process_headers(ngx_imap_session_t *s,
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63 ngx_imap_auth_http_ctx_t *ctx);
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64 static void ngx_imap_auth_sleep_handler(ngx_event_t *rev);
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65 static ngx_int_t ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s,
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66 ngx_imap_auth_http_ctx_t *ctx);
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67 static void ngx_imap_auth_http_block_read(ngx_event_t *rev);
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68 static void ngx_imap_auth_http_dummy_handler(ngx_event_t *ev);
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69 static ngx_buf_t *ngx_imap_auth_http_create_request(ngx_imap_session_t *s,
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96
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70 ngx_pool_t *pool, ngx_imap_auth_http_conf_t *ahcf);
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182
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71 static ngx_int_t ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text,
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72 ngx_str_t *escaped);
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76
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73
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74 static void *ngx_imap_auth_http_create_conf(ngx_conf_t *cf);
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75 static char *ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent,
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76 void *child);
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77 static char *ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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122
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78 static char *ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd,
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79 void *conf);
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76
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80
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81
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82 static ngx_command_t ngx_imap_auth_http_commands[] = {
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83
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84 { ngx_string("auth_http"),
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85 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
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86 ngx_imap_auth_http,
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87 NGX_IMAP_SRV_CONF_OFFSET,
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88 0,
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89 NULL },
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90
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91 { ngx_string("auth_http_timeout"),
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92 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE1,
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93 ngx_conf_set_msec_slot,
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94 NGX_IMAP_SRV_CONF_OFFSET,
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95 offsetof(ngx_imap_auth_http_conf_t, timeout),
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96 NULL },
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97
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122
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98 { ngx_string("auth_http_header"),
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99 NGX_IMAP_MAIN_CONF|NGX_IMAP_SRV_CONF|NGX_CONF_TAKE2,
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100 ngx_imap_auth_http_header,
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101 NGX_IMAP_SRV_CONF_OFFSET,
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102 0,
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103 NULL },
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104
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76
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105 ngx_null_command
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106 };
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107
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108
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109 static ngx_imap_module_t ngx_imap_auth_http_module_ctx = {
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110 NULL, /* create main configuration */
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111 NULL, /* init main configuration */
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112
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113 ngx_imap_auth_http_create_conf, /* create server configuration */
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114 ngx_imap_auth_http_merge_conf /* merge server configuration */
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115 };
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116
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117
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118 ngx_module_t ngx_imap_auth_http_module = {
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119 NGX_MODULE_V1,
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120 &ngx_imap_auth_http_module_ctx, /* module context */
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121 ngx_imap_auth_http_commands, /* module directives */
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122 NGX_IMAP_MODULE, /* module type */
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90
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123 NULL, /* init master */
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76
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124 NULL, /* init module */
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90
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125 NULL, /* init process */
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126 NULL, /* init thread */
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127 NULL, /* exit thread */
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128 NULL, /* exit process */
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129 NULL, /* exit master */
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130 NGX_MODULE_V1_PADDING
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76
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131 };
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132
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133
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134 static char *ngx_imap_auth_http_protocol[] = { "pop3", "imap" };
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135
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136
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137 void
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138 ngx_imap_auth_http_init(ngx_imap_session_t *s)
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139 {
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140 ngx_int_t rc;
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96
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141 ngx_pool_t *pool;
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76
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142 ngx_imap_auth_http_ctx_t *ctx;
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143 ngx_imap_auth_http_conf_t *ahcf;
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144
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90
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145 s->connection->log->action = "in http auth state";
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146
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96
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147 pool = ngx_create_pool(2048, s->connection->log);
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148 if (pool == NULL) {
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76
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149 ngx_imap_session_internal_server_error(s);
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150 return;
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151 }
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152
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96
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153 ctx = ngx_pcalloc(pool, sizeof(ngx_imap_auth_http_ctx_t));
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154 if (ctx == NULL) {
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155 ngx_destroy_pool(pool);
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156 ngx_imap_session_internal_server_error(s);
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157 return;
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158 }
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159
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160 ctx->pool = pool;
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161
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76
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162 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module);
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163
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164 ctx->request = ngx_imap_auth_http_create_request(s, pool, ahcf);
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165 if (ctx->request == NULL) {
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96
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166 ngx_destroy_pool(ctx->pool);
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76
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167 ngx_imap_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 ngx_imap_set_ctx(s, ctx, ngx_imap_auth_http_module);
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172
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173 ctx->peer.peers = ahcf->peers;
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174 ctx->peer.log = s->connection->log;
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175 ctx->peer.log_error = NGX_ERROR_ERR;
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176
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177 rc = ngx_event_connect_peer(&ctx->peer);
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178
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92
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179 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) {
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180 ngx_close_connection(ctx->peer.connection);
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96
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181 ngx_destroy_pool(ctx->pool);
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76
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182 ngx_imap_session_internal_server_error(s);
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183 return;
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184 }
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185
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186 ctx->peer.connection->data = s;
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187 ctx->peer.connection->pool = s->connection->pool;
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188
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189 s->connection->read->handler = ngx_imap_auth_http_block_read;
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190 ctx->peer.connection->read->handler = ngx_imap_auth_http_read_handler;
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191 ctx->peer.connection->write->handler = ngx_imap_auth_http_write_handler;
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192
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193 ctx->handler = ngx_imap_auth_http_ignore_status_line;
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194
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90
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195 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout);
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196 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout);
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197
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76
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198 if (rc == NGX_OK) {
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199 ngx_imap_auth_http_write_handler(ctx->peer.connection->write);
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200 return;
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201 }
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202 }
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203
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204
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205 static void
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206 ngx_imap_auth_http_write_handler(ngx_event_t *wev)
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207 {
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208 ssize_t n, size;
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209 ngx_connection_t *c;
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210 ngx_imap_session_t *s;
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211 ngx_imap_auth_http_ctx_t *ctx;
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212 ngx_imap_auth_http_conf_t *ahcf;
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213
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214 c = wev->data;
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215 s = c->data;
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216
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217 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
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218
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219 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0,
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220 "imap auth http write handler");
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221
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126
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222 if (wev->timedout) {
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76
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223 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT,
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90
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224 "auth http server %V timed out",
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225 &ctx->peer.peers->peer[0].name);
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76
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226 ngx_close_connection(ctx->peer.connection);
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96
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227 ngx_destroy_pool(ctx->pool);
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76
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228 ngx_imap_session_internal_server_error(s);
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229 return;
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230 }
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231
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232 size = ctx->request->last - ctx->request->pos;
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233
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234 n = ngx_send(c, ctx->request->pos, size);
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235
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236 if (n == NGX_ERROR) {
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237 ngx_close_connection(ctx->peer.connection);
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96
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238 ngx_destroy_pool(ctx->pool);
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76
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239 ngx_imap_session_internal_server_error(s);
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240 return;
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241 }
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242
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243 if (n > 0) {
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244 ctx->request->pos += n;
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245
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246 if (n == size) {
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247 wev->handler = ngx_imap_auth_http_dummy_handler;
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248
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249 if (wev->timer_set) {
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250 ngx_del_timer(wev);
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251 }
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252
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253 return;
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254 }
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255 }
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256
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257 if (!wev->timer_set) {
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258 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module);
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259 ngx_add_timer(wev, ahcf->timeout);
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260 }
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261 }
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262
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263
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264 static void
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265 ngx_imap_auth_http_read_handler(ngx_event_t *rev)
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266 {
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267 ssize_t n, size;
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268 ngx_connection_t *c;
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269 ngx_imap_session_t *s;
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270 ngx_imap_auth_http_ctx_t *ctx;
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271
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272 c = rev->data;
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273 s = c->data;
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274
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275 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0,
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276 "imap auth http read handler");
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277
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278 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
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279
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126
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280 if (rev->timedout) {
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76
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281 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT,
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90
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282 "auth http server %V timed out",
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283 &ctx->peer.peers->peer[0].name);
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76
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284 ngx_close_connection(ctx->peer.connection);
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96
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285 ngx_destroy_pool(ctx->pool);
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76
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286 ngx_imap_session_internal_server_error(s);
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287 return;
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288 }
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289
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290 if (ctx->response == NULL) {
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96
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291 ctx->response = ngx_create_temp_buf(ctx->pool, 1024);
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76
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292 if (ctx->response == NULL) {
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293 ngx_close_connection(ctx->peer.connection);
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96
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294 ngx_destroy_pool(ctx->pool);
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76
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295 ngx_imap_session_internal_server_error(s);
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296 return;
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297 }
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298 }
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299
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300 size = ctx->response->end - ctx->response->last;
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301
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302 n = ngx_recv(c, ctx->response->pos, size);
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303
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304 if (n > 0) {
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305 ctx->response->last += n;
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306
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307 ctx->handler(s, ctx);
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308 return;
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309 }
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310
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311 if (n == NGX_AGAIN) {
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312 return;
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313 }
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314
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315 ngx_close_connection(ctx->peer.connection);
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96
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316 ngx_destroy_pool(ctx->pool);
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76
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317 ngx_imap_session_internal_server_error(s);
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318 }
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319
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320
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321 static void
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322 ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s,
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323 ngx_imap_auth_http_ctx_t *ctx)
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324 {
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325 u_char *p, ch;
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326 enum {
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327 sw_start = 0,
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328 sw_H,
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329 sw_HT,
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330 sw_HTT,
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331 sw_HTTP,
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332 sw_skip,
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333 sw_almost_done
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334 } state;
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335
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336 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
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337 "imap auth http process status line");
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338
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339 state = ctx->state;
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340
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341 for (p = ctx->response->pos; p < ctx->response->last; p++) {
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342 ch = *p;
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343
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344 switch (state) {
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345
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346 /* "HTTP/" */
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347 case sw_start:
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348 if (ch == 'H') {
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349 state = sw_H;
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350 break;
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351 }
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352 goto next;
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353
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354 case sw_H:
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355 if (ch == 'T') {
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356 state = sw_HT;
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357 break;
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358 }
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359 goto next;
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360
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361 case sw_HT:
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362 if (ch == 'T') {
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363 state = sw_HTT;
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364 break;
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365 }
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366 goto next;
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367
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368 case sw_HTT:
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369 if (ch == 'P') {
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370 state = sw_HTTP;
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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_HTTP:
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376 if (ch == '/') {
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377 state = sw_skip;
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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 /* any text until end of line */
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383 case sw_skip:
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384 switch (ch) {
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385 case CR:
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386 state = sw_almost_done;
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387
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388 break;
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126
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389 case LF:
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76
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390 goto done;
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391 }
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392 break;
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393
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394 /* end of status line */
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395 case sw_almost_done:
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|
|
396 if (ch == LF) {
|
|
|
397 goto done;
|
|
|
398 }
|
|
|
399
|
|
|
400 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
401 "auth http server &V sent invalid response",
|
|
|
402 &ctx->peer.peers->peer[0].name);
|
|
76
|
403 ngx_close_connection(ctx->peer.connection);
|
|
96
|
404 ngx_destroy_pool(ctx->pool);
|
|
76
|
405 ngx_imap_session_internal_server_error(s);
|
|
|
406 return;
|
|
|
407 }
|
|
|
408 }
|
|
|
409
|
|
|
410 ctx->response->pos = p;
|
|
|
411 ctx->state = state;
|
|
|
412
|
|
|
413 return;
|
|
|
414
|
|
|
415 next:
|
|
|
416
|
|
|
417 p = ctx->response->start - 1;
|
|
|
418
|
|
|
419 done:
|
|
|
420
|
|
|
421 ctx->response->pos = p + 1;
|
|
|
422 ctx->state = 0;
|
|
|
423 ctx->handler = ngx_imap_auth_http_process_headers;
|
|
|
424 ctx->handler(s, ctx);
|
|
|
425 }
|
|
|
426
|
|
|
427
|
|
|
428 static void
|
|
|
429 ngx_imap_auth_http_process_headers(ngx_imap_session_t *s,
|
|
|
430 ngx_imap_auth_http_ctx_t *ctx)
|
|
|
431 {
|
|
|
432 u_char *p;
|
|
96
|
433 time_t timer;
|
|
76
|
434 size_t len, size;
|
|
|
435 ngx_int_t rc, port, n;
|
|
96
|
436 ngx_peers_t *peers;
|
|
76
|
437 struct sockaddr_in *sin;
|
|
|
438
|
|
|
439 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
440 "imap auth http process headers");
|
|
|
441
|
|
|
442 for ( ;; ) {
|
|
|
443 rc = ngx_imap_auth_http_parse_header_line(s, ctx);
|
|
|
444
|
|
|
445 if (rc == NGX_OK) {
|
|
|
446
|
|
|
447 #if (NGX_DEBUG)
|
|
|
448 {
|
|
|
449 ngx_str_t key, value;
|
|
|
450
|
|
|
451 key.len = ctx->header_name_end - ctx->header_name_start;
|
|
|
452 key.data = ctx->header_name_start;
|
|
|
453 value.len = ctx->header_end - ctx->header_start;
|
|
|
454 value.data = ctx->header_start;
|
|
|
455
|
|
|
456 ngx_log_debug2(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
457 "auth http header: \"%V: %V\"",
|
|
|
458 &key, &value);
|
|
|
459 }
|
|
|
460 #endif
|
|
|
461
|
|
|
462 len = ctx->header_name_end - ctx->header_name_start;
|
|
|
463
|
|
|
464 if (len == sizeof("Auth-Status") - 1
|
|
|
465 && ngx_strncasecmp(ctx->header_name_start, "Auth-Status",
|
|
|
466 sizeof("Auth-Status") - 1) == 0)
|
|
|
467 {
|
|
|
468 len = ctx->header_end - ctx->header_start;
|
|
|
469
|
|
|
470 if (len == 2
|
|
|
471 && ctx->header_start[0] == 'O'
|
|
|
472 && ctx->header_start[1] == 'K')
|
|
|
473 {
|
|
|
474 continue;
|
|
|
475 }
|
|
|
476
|
|
116
|
477 ctx->errmsg.len = len;
|
|
|
478 ctx->errmsg.data = ctx->header_start;
|
|
|
479
|
|
76
|
480 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
481 size = sizeof("-ERR") - 1 + len + sizeof(CRLF) - 1;
|
|
|
482
|
|
|
483 } else {
|
|
|
484 size = s->tag.len + sizeof("NO") - 1 + len
|
|
|
485 + sizeof(CRLF) - 1;
|
|
|
486 }
|
|
|
487
|
|
|
488 p = ngx_pcalloc(s->connection->pool, size);
|
|
|
489 if (p == NULL) {
|
|
92
|
490 ngx_close_connection(ctx->peer.connection);
|
|
96
|
491 ngx_destroy_pool(ctx->pool);
|
|
76
|
492 ngx_imap_session_internal_server_error(s);
|
|
|
493 return;
|
|
|
494 }
|
|
|
495
|
|
|
496 ctx->err.data = p;
|
|
|
497
|
|
|
498 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
499 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R';
|
|
|
500
|
|
|
501 } else {
|
|
|
502 p = ngx_cpymem(p, s->tag.data, s->tag.len);
|
|
|
503 *p++ = 'N'; *p++ = 'O';
|
|
|
504 }
|
|
|
505
|
|
|
506 *p++ = ' ';
|
|
116
|
507
|
|
76
|
508 p = ngx_cpymem(p, ctx->header_start, len);
|
|
|
509 *p++ = CR; *p++ = LF;
|
|
|
510
|
|
|
511 ctx->err.len = p - ctx->err.data;
|
|
|
512
|
|
|
513 continue;
|
|
|
514 }
|
|
|
515
|
|
|
516 if (len == sizeof("Auth-Server") - 1
|
|
|
517 && ngx_strncasecmp(ctx->header_name_start, "Auth-Server",
|
|
|
518 sizeof("Auth-Server") - 1) == 0)
|
|
|
519 {
|
|
|
520 ctx->addr.len = ctx->header_end - ctx->header_start;
|
|
|
521 ctx->addr.data = ctx->header_start;
|
|
|
522
|
|
|
523 continue;
|
|
|
524 }
|
|
|
525
|
|
|
526 if (len == sizeof("Auth-Port") - 1
|
|
|
527 && ngx_strncasecmp(ctx->header_name_start, "Auth-Port",
|
|
|
528 sizeof("Auth-Port") - 1) == 0)
|
|
|
529 {
|
|
|
530 ctx->port.len = ctx->header_end - ctx->header_start;
|
|
|
531 ctx->port.data = ctx->header_start;
|
|
|
532
|
|
|
533 continue;
|
|
|
534 }
|
|
|
535
|
|
|
536 if (len == sizeof("Auth-User") - 1
|
|
|
537 && ngx_strncasecmp(ctx->header_name_start, "Auth-User",
|
|
|
538 sizeof("Auth-User") - 1) == 0)
|
|
|
539 {
|
|
|
540 s->login.len = ctx->header_end - ctx->header_start;
|
|
116
|
541
|
|
|
542 s->login.data = ngx_palloc(s->connection->pool, s->login.len);
|
|
|
543 if (s->login.data == NULL) {
|
|
|
544 ngx_close_connection(ctx->peer.connection);
|
|
|
545 ngx_destroy_pool(ctx->pool);
|
|
|
546 ngx_imap_session_internal_server_error(s);
|
|
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
|
550 ngx_memcpy(s->login.data, ctx->header_start, s->login.len);
|
|
76
|
551
|
|
|
552 continue;
|
|
|
553 }
|
|
|
554
|
|
|
555 if (len == sizeof("Auth-Wait") - 1
|
|
|
556 && ngx_strncasecmp(ctx->header_name_start, "Auth-Wait",
|
|
|
557 sizeof("Auth-Wait") - 1) == 0)
|
|
|
558 {
|
|
|
559 n = ngx_atoi(ctx->header_start,
|
|
|
560 ctx->header_end - ctx->header_start);
|
|
|
561
|
|
|
562 if (n != NGX_ERROR) {
|
|
|
563 ctx->sleep = n;
|
|
|
564 }
|
|
|
565
|
|
|
566 continue;
|
|
|
567 }
|
|
|
568
|
|
|
569 /* ignore other headers */
|
|
|
570
|
|
|
571 continue;
|
|
|
572 }
|
|
|
573
|
|
|
574 if (rc == NGX_DONE) {
|
|
|
575 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
576 "auth http header done");
|
|
|
577
|
|
|
578 ngx_close_connection(ctx->peer.connection);
|
|
|
579
|
|
|
580 if (ctx->err.len) {
|
|
116
|
581 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
|
582 "client login failed: \"%V\"", &ctx->errmsg);
|
|
|
583
|
|
88
|
584 s->out = ctx->err;
|
|
96
|
585 timer = ctx->sleep;
|
|
76
|
586
|
|
96
|
587 ngx_destroy_pool(ctx->pool);
|
|
|
588
|
|
|
589 if (timer == 0) {
|
|
88
|
590 s->quit = 1;
|
|
90
|
591 ngx_imap_send(s->connection->write);
|
|
|
592 return;
|
|
|
593 }
|
|
88
|
594
|
|
96
|
595 ngx_add_timer(s->connection->read, timer * 1000);
|
|
76
|
596
|
|
|
597 s->connection->read->handler = ngx_imap_auth_sleep_handler;
|
|
|
598
|
|
|
599 return;
|
|
|
600 }
|
|
|
601
|
|
|
602 if (ctx->addr.len == 0 || ctx->port.len == 0) {
|
|
|
603 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
604 "auth http server %V did not send server or port",
|
|
|
605 &ctx->peer.peers->peer[0].name);
|
|
96
|
606 ngx_destroy_pool(ctx->pool);
|
|
76
|
607 ngx_imap_session_internal_server_error(s);
|
|
|
608 return;
|
|
|
609 }
|
|
|
610
|
|
96
|
611 peers = ngx_pcalloc(s->connection->pool, sizeof(ngx_peers_t));
|
|
|
612 if (peers == NULL) {
|
|
|
613 ngx_destroy_pool(ctx->pool);
|
|
76
|
614 ngx_imap_session_internal_server_error(s);
|
|
|
615 return;
|
|
|
616 }
|
|
|
617
|
|
|
618 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in));
|
|
|
619 if (sin == NULL) {
|
|
96
|
620 ngx_destroy_pool(ctx->pool);
|
|
76
|
621 ngx_imap_session_internal_server_error(s);
|
|
|
622 return;
|
|
|
623 }
|
|
|
624
|
|
|
625 sin->sin_family = AF_INET;
|
|
|
626
|
|
|
627 port = ngx_atoi(ctx->port.data, ctx->port.len);
|
|
|
628 if (port == NGX_ERROR || port < 1 || port > 65536) {
|
|
|
629 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
630 "auth http server %V sent invalid server "
|
|
|
631 "port:\"%V\"",
|
|
|
632 &ctx->peer.peers->peer[0].name, &ctx->port);
|
|
96
|
633 ngx_destroy_pool(ctx->pool);
|
|
76
|
634 ngx_imap_session_internal_server_error(s);
|
|
|
635 return;
|
|
|
636 }
|
|
|
637
|
|
|
638 sin->sin_port = htons((in_port_t) port);
|
|
|
639
|
|
|
640 ctx->addr.data[ctx->addr.len] = '\0';
|
|
|
641 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data);
|
|
|
642 if (sin->sin_addr.s_addr == INADDR_NONE) {
|
|
|
643 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
644 "auth http server %V sent invalid server "
|
|
|
645 "address:\"%V\"",
|
|
|
646 &ctx->peer.peers->peer[0].name, &ctx->addr);
|
|
96
|
647 ngx_destroy_pool(ctx->pool);
|
|
76
|
648 ngx_imap_session_internal_server_error(s);
|
|
|
649 return;
|
|
|
650 }
|
|
|
651
|
|
96
|
652 peers->number = 1;
|
|
76
|
653
|
|
96
|
654 peers->peer[0].sockaddr = (struct sockaddr *) sin;
|
|
|
655 peers->peer[0].socklen = sizeof(struct sockaddr_in);
|
|
76
|
656
|
|
|
657 len = ctx->addr.len + 1 + ctx->port.len;
|
|
|
658
|
|
96
|
659 peers->peer[0].name.len = len;
|
|
76
|
660
|
|
96
|
661 peers->peer[0].name.data = ngx_palloc(s->connection->pool, len);
|
|
|
662 if (peers->peer[0].name.data == NULL) {
|
|
|
663 ngx_destroy_pool(ctx->pool);
|
|
76
|
664 ngx_imap_session_internal_server_error(s);
|
|
|
665 return;
|
|
|
666 }
|
|
|
667
|
|
|
668 len = ctx->addr.len;
|
|
|
669
|
|
96
|
670 ngx_memcpy(peers->peer[0].name.data, ctx->addr.data, len);
|
|
76
|
671
|
|
96
|
672 peers->peer[0].name.data[len++] = ':';
|
|
76
|
673
|
|
96
|
674 ngx_memcpy(peers->peer[0].name.data + len,
|
|
76
|
675 ctx->port.data, ctx->port.len);
|
|
|
676
|
|
96
|
677 peers->peer[0].uri_separator = "";
|
|
76
|
678
|
|
96
|
679 ngx_destroy_pool(ctx->pool);
|
|
|
680 ngx_imap_proxy_init(s, peers);
|
|
76
|
681
|
|
|
682 return;
|
|
|
683 }
|
|
|
684
|
|
|
685 if (rc == NGX_AGAIN ) {
|
|
|
686 return;
|
|
|
687 }
|
|
|
688
|
|
|
689 /* rc == NGX_ERROR */
|
|
|
690
|
|
|
691 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
692 "auth http server %V sent invalid header in response",
|
|
|
693 &ctx->peer.peers->peer[0].name);
|
|
76
|
694 ngx_close_connection(ctx->peer.connection);
|
|
96
|
695 ngx_destroy_pool(ctx->pool);
|
|
76
|
696 ngx_imap_session_internal_server_error(s);
|
|
|
697
|
|
|
698 return;
|
|
|
699 }
|
|
|
700 }
|
|
|
701
|
|
|
702
|
|
|
703 static void
|
|
|
704 ngx_imap_auth_sleep_handler(ngx_event_t *rev)
|
|
|
705 {
|
|
92
|
706 ngx_connection_t *c;
|
|
|
707 ngx_imap_session_t *s;
|
|
|
708 ngx_imap_core_srv_conf_t *cscf;
|
|
76
|
709
|
|
|
710 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap auth sleep handler");
|
|
|
711
|
|
|
712 c = rev->data;
|
|
|
713 s = c->data;
|
|
|
714
|
|
|
715 if (rev->timedout) {
|
|
|
716
|
|
|
717 rev->timedout = 0;
|
|
|
718
|
|
|
719 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
720 s->imap_state = ngx_pop3_start;
|
|
|
721 s->connection->read->handler = ngx_pop3_auth_state;
|
|
|
722
|
|
|
723 } else {
|
|
|
724 s->imap_state = ngx_imap_start;
|
|
|
725 s->connection->read->handler = ngx_imap_auth_state;
|
|
|
726 }
|
|
|
727
|
|
92
|
728 c->log->action = "in auth state";
|
|
|
729
|
|
|
730 ngx_imap_send(s->connection->write);
|
|
|
731
|
|
132
|
732 if (c->destroyed) {
|
|
92
|
733 return;
|
|
|
734 }
|
|
|
735
|
|
|
736 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module);
|
|
|
737
|
|
|
738 ngx_add_timer(rev, cscf->timeout);
|
|
|
739
|
|
76
|
740 if (rev->ready) {
|
|
|
741 s->connection->read->handler(rev);
|
|
|
742 return;
|
|
|
743 }
|
|
|
744
|
|
|
745 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
746 ngx_imap_close_connection(s->connection);
|
|
|
747 }
|
|
|
748
|
|
|
749 return;
|
|
|
750 }
|
|
|
751
|
|
|
752 if (rev->active) {
|
|
|
753 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
754 ngx_imap_close_connection(s->connection);
|
|
|
755 }
|
|
|
756 }
|
|
|
757 }
|
|
|
758
|
|
|
759
|
|
|
760 static ngx_int_t
|
|
|
761 ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s,
|
|
|
762 ngx_imap_auth_http_ctx_t *ctx)
|
|
|
763 {
|
|
|
764 u_char c, ch, *p;
|
|
|
765 ngx_uint_t hash;
|
|
|
766 enum {
|
|
|
767 sw_start = 0,
|
|
|
768 sw_name,
|
|
|
769 sw_space_before_value,
|
|
|
770 sw_value,
|
|
|
771 sw_space_after_value,
|
|
126
|
772 sw_almost_done,
|
|
76
|
773 sw_header_almost_done
|
|
|
774 } state;
|
|
|
775
|
|
126
|
776 state = ctx->state;
|
|
76
|
777 hash = ctx->hash;
|
|
|
778
|
|
|
779 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
780 ch = *p;
|
|
|
781
|
|
|
782 switch (state) {
|
|
|
783
|
|
|
784 /* first char */
|
|
|
785 case sw_start:
|
|
|
786
|
|
|
787 switch (ch) {
|
|
|
788 case CR:
|
|
126
|
789 ctx->header_end = p;
|
|
76
|
790 state = sw_header_almost_done;
|
|
|
791 break;
|
|
126
|
792 case LF:
|
|
76
|
793 ctx->header_end = p;
|
|
|
794 goto header_done;
|
|
|
795 default:
|
|
|
796 state = sw_name;
|
|
|
797 ctx->header_name_start = p;
|
|
|
798
|
|
|
799 c = (u_char) (ch | 0x20);
|
|
|
800 if (c >= 'a' && c <= 'z') {
|
|
|
801 hash = c;
|
|
|
802 break;
|
|
|
803 }
|
|
|
804
|
|
|
805 if (ch >= '0' && ch <= '9') {
|
|
|
806 hash = ch;
|
|
|
807 break;
|
|
|
808 }
|
|
|
809
|
|
|
810 return NGX_ERROR;
|
|
|
811 }
|
|
|
812 break;
|
|
|
813
|
|
|
814 /* header name */
|
|
|
815 case sw_name:
|
|
|
816 c = (u_char) (ch | 0x20);
|
|
|
817 if (c >= 'a' && c <= 'z') {
|
|
|
818 hash += c;
|
|
|
819 break;
|
|
|
820 }
|
|
|
821
|
|
|
822 if (ch == ':') {
|
|
|
823 ctx->header_name_end = p;
|
|
|
824 state = sw_space_before_value;
|
|
|
825 break;
|
|
|
826 }
|
|
|
827
|
|
|
828 if (ch == '-') {
|
|
|
829 hash += ch;
|
|
|
830 break;
|
|
|
831 }
|
|
|
832
|
|
|
833 if (ch >= '0' && ch <= '9') {
|
|
|
834 hash += ch;
|
|
|
835 break;
|
|
|
836 }
|
|
|
837
|
|
|
838 if (ch == CR) {
|
|
|
839 ctx->header_name_end = p;
|
|
|
840 ctx->header_start = p;
|
|
|
841 ctx->header_end = p;
|
|
|
842 state = sw_almost_done;
|
|
|
843 break;
|
|
|
844 }
|
|
|
845
|
|
|
846 if (ch == LF) {
|
|
|
847 ctx->header_name_end = p;
|
|
|
848 ctx->header_start = p;
|
|
|
849 ctx->header_end = p;
|
|
|
850 goto done;
|
|
|
851 }
|
|
|
852
|
|
|
853 return NGX_ERROR;
|
|
|
854
|
|
|
855 /* space* before header value */
|
|
|
856 case sw_space_before_value:
|
|
|
857 switch (ch) {
|
|
|
858 case ' ':
|
|
|
859 break;
|
|
|
860 case CR:
|
|
|
861 ctx->header_start = p;
|
|
|
862 ctx->header_end = p;
|
|
|
863 state = sw_almost_done;
|
|
|
864 break;
|
|
|
865 case LF:
|
|
|
866 ctx->header_start = p;
|
|
|
867 ctx->header_end = p;
|
|
|
868 goto done;
|
|
|
869 default:
|
|
|
870 ctx->header_start = p;
|
|
|
871 state = sw_value;
|
|
|
872 break;
|
|
|
873 }
|
|
|
874 break;
|
|
|
875
|
|
|
876 /* header value */
|
|
|
877 case sw_value:
|
|
|
878 switch (ch) {
|
|
|
879 case ' ':
|
|
|
880 ctx->header_end = p;
|
|
|
881 state = sw_space_after_value;
|
|
|
882 break;
|
|
|
883 case CR:
|
|
|
884 ctx->header_end = p;
|
|
|
885 state = sw_almost_done;
|
|
|
886 break;
|
|
|
887 case LF:
|
|
|
888 ctx->header_end = p;
|
|
|
889 goto done;
|
|
|
890 }
|
|
|
891 break;
|
|
|
892
|
|
|
893 /* space* before end of header line */
|
|
|
894 case sw_space_after_value:
|
|
|
895 switch (ch) {
|
|
|
896 case ' ':
|
|
|
897 break;
|
|
|
898 case CR:
|
|
|
899 state = sw_almost_done;
|
|
|
900 break;
|
|
|
901 case LF:
|
|
|
902 goto done;
|
|
|
903 default:
|
|
|
904 state = sw_value;
|
|
|
905 break;
|
|
|
906 }
|
|
|
907 break;
|
|
|
908
|
|
|
909 /* end of header line */
|
|
|
910 case sw_almost_done:
|
|
|
911 switch (ch) {
|
|
|
912 case LF:
|
|
|
913 goto done;
|
|
|
914 default:
|
|
|
915 return NGX_ERROR;
|
|
|
916 }
|
|
|
917
|
|
|
918 /* end of header */
|
|
|
919 case sw_header_almost_done:
|
|
|
920 switch (ch) {
|
|
|
921 case LF:
|
|
|
922 goto header_done;
|
|
|
923 default:
|
|
|
924 return NGX_ERROR;
|
|
|
925 }
|
|
|
926 }
|
|
|
927 }
|
|
|
928
|
|
|
929 ctx->response->pos = p;
|
|
|
930 ctx->state = state;
|
|
|
931 ctx->hash = hash;
|
|
|
932
|
|
|
933 return NGX_AGAIN;
|
|
|
934
|
|
|
935 done:
|
|
|
936
|
|
|
937 ctx->response->pos = p + 1;
|
|
|
938 ctx->state = sw_start;
|
|
|
939 ctx->hash = hash;
|
|
|
940
|
|
|
941 return NGX_OK;
|
|
|
942
|
|
|
943 header_done:
|
|
|
944
|
|
|
945 ctx->response->pos = p + 1;
|
|
|
946 ctx->state = sw_start;
|
|
|
947
|
|
|
948 return NGX_DONE;
|
|
|
949 }
|
|
|
950
|
|
|
951
|
|
|
952 static void
|
|
|
953 ngx_imap_auth_http_block_read(ngx_event_t *rev)
|
|
|
954 {
|
|
|
955 ngx_connection_t *c;
|
|
|
956 ngx_imap_session_t *s;
|
|
|
957 ngx_imap_auth_http_ctx_t *ctx;
|
|
|
958
|
|
|
959 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0,
|
|
|
960 "imap auth http block read");
|
|
|
961
|
|
|
962 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
963 c = rev->data;
|
|
|
964 s = c->data;
|
|
|
965
|
|
|
966 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
|
|
|
967
|
|
|
968 ngx_close_connection(ctx->peer.connection);
|
|
96
|
969 ngx_destroy_pool(ctx->pool);
|
|
76
|
970 ngx_imap_session_internal_server_error(s);
|
|
|
971 }
|
|
|
972 }
|
|
|
973
|
|
|
974
|
|
|
975 static void
|
|
|
976 ngx_imap_auth_http_dummy_handler(ngx_event_t *ev)
|
|
|
977 {
|
|
|
978 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0,
|
|
|
979 "imap auth http dummy handler");
|
|
|
980 }
|
|
|
981
|
|
|
982
|
|
|
983 static ngx_buf_t *
|
|
96
|
984 ngx_imap_auth_http_create_request(ngx_imap_session_t *s, ngx_pool_t *pool,
|
|
76
|
985 ngx_imap_auth_http_conf_t *ahcf)
|
|
|
986 {
|
|
|
987 size_t len;
|
|
|
988 ngx_buf_t *b;
|
|
182
|
989 ngx_str_t login, passwd;
|
|
|
990
|
|
|
991 if (ngx_imap_auth_http_escape(pool, &s->login, &login) != NGX_OK) {
|
|
|
992 return NULL;
|
|
|
993 }
|
|
|
994
|
|
|
995 if (ngx_imap_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) {
|
|
|
996 return NULL;
|
|
|
997 }
|
|
76
|
998
|
|
|
999 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1
|
|
|
1000 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1
|
|
|
1001 + sizeof("Auth-Method: plain" CRLF) - 1
|
|
182
|
1002 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1
|
|
|
1003 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1
|
|
76
|
1004 + sizeof("Auth-Protocol: imap" CRLF) - 1
|
|
|
1005 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN
|
|
|
1006 + sizeof(CRLF) - 1
|
|
|
1007 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len
|
|
|
1008 + sizeof(CRLF) - 1
|
|
|
1009 + sizeof(CRLF) - 1;
|
|
|
1010
|
|
96
|
1011 b = ngx_create_temp_buf(pool, len);
|
|
76
|
1012 if (b == NULL) {
|
|
|
1013 return NULL;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1);
|
|
122
|
1017 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len);
|
|
76
|
1018 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF,
|
|
|
1019 sizeof(" HTTP/1.0" CRLF) - 1);
|
|
|
1020
|
|
|
1021 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1);
|
|
122
|
1022 b->last = ngx_copy(b->last, ahcf->host_header.data,
|
|
76
|
1023 ahcf->host_header.len);
|
|
|
1024 *b->last++ = CR; *b->last++ = LF;
|
|
|
1025
|
|
|
1026 b->last = ngx_cpymem(b->last, "Auth-Method: plain" CRLF,
|
|
|
1027 sizeof("Auth-Method: plain" CRLF) - 1);
|
|
|
1028
|
|
|
1029 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1);
|
|
182
|
1030 b->last = ngx_copy(b->last, login.data, login.len);
|
|
76
|
1031 *b->last++ = CR; *b->last++ = LF;
|
|
|
1032
|
|
|
1033 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1);
|
|
182
|
1034 b->last = ngx_copy(b->last, passwd.data, passwd.len);
|
|
76
|
1035 *b->last++ = CR; *b->last++ = LF;
|
|
|
1036
|
|
|
1037 b->last = ngx_cpymem(b->last, "Auth-Protocol: ",
|
|
|
1038 sizeof("Auth-Protocol: ") - 1);
|
|
|
1039 b->last = ngx_cpymem(b->last, ngx_imap_auth_http_protocol[s->protocol],
|
|
|
1040 sizeof("imap") - 1);
|
|
|
1041 *b->last++ = CR; *b->last++ = LF;
|
|
|
1042
|
|
|
1043 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF,
|
|
|
1044 s->login_attempt);
|
|
|
1045
|
|
|
1046 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1);
|
|
122
|
1047 b->last = ngx_copy(b->last, s->connection->addr_text.data,
|
|
76
|
1048 s->connection->addr_text.len);
|
|
|
1049 *b->last++ = CR; *b->last++ = LF;
|
|
|
1050
|
|
122
|
1051 if (ahcf->header.len) {
|
|
|
1052 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len);
|
|
|
1053 }
|
|
|
1054
|
|
76
|
1055 /* add "\r\n" at the header end */
|
|
|
1056 *b->last++ = CR; *b->last++ = LF;
|
|
|
1057
|
|
96
|
1058 #if (NGX_DEBUG_IMAP_PASSWD)
|
|
76
|
1059 {
|
|
|
1060 ngx_str_t l;
|
|
|
1061
|
|
|
1062 l.len = b->last - b->pos;
|
|
|
1063 l.data = b->pos;
|
|
|
1064 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
1065 "imap auth http header:\n\"%V\"", &l);
|
|
|
1066 }
|
|
|
1067 #endif
|
|
|
1068
|
|
|
1069 return b;
|
|
|
1070 }
|
|
|
1071
|
|
|
1072
|
|
182
|
1073 static ngx_int_t
|
|
|
1074 ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped)
|
|
|
1075 {
|
|
|
1076 u_char ch, *p;
|
|
|
1077 ngx_uint_t i, n;
|
|
|
1078
|
|
|
1079 n = 0;
|
|
|
1080
|
|
|
1081 for (i = 0; i < text->len; i++) {
|
|
|
1082 ch = text->data[i];
|
|
|
1083
|
|
|
1084 if (ch == CR || ch == LF) {
|
|
|
1085 n++;
|
|
|
1086 }
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 if (n == 0) {
|
|
|
1090 *escaped = *text;
|
|
|
1091 return NGX_OK;
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 escaped->len = text->len + n * 2;
|
|
|
1095
|
|
|
1096 p = ngx_palloc(pool, escaped->len);
|
|
|
1097 if (p == NULL) {
|
|
|
1098 return NGX_ERROR;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 escaped->data = p;
|
|
|
1102
|
|
|
1103 for (i = 0; i < text->len; i++) {
|
|
|
1104 ch = text->data[i];
|
|
|
1105
|
|
|
1106 if (ch == CR) {
|
|
|
1107 *p++ = '%';
|
|
|
1108 *p++ = '0';
|
|
|
1109 *p++ = 'D';
|
|
|
1110 continue;
|
|
|
1111 }
|
|
|
1112
|
|
|
1113 if (ch == LF) {
|
|
|
1114 *p++ = '%';
|
|
|
1115 *p++ = '0';
|
|
|
1116 *p++ = 'A';
|
|
|
1117 continue;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 *p++ = ch;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 return NGX_OK;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126
|
|
76
|
1127 static void *
|
|
|
1128 ngx_imap_auth_http_create_conf(ngx_conf_t *cf)
|
|
126
|
1129 {
|
|
76
|
1130 ngx_imap_auth_http_conf_t *ahcf;
|
|
126
|
1131
|
|
76
|
1132 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_auth_http_conf_t));
|
|
|
1133 if (ahcf == NULL) {
|
|
|
1134 return NGX_CONF_ERROR;
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 ahcf->timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1138
|
|
|
1139 return ahcf;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142
|
|
|
1143 static char *
|
|
|
1144 ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1145 {
|
|
|
1146 ngx_imap_auth_http_conf_t *prev = parent;
|
|
|
1147 ngx_imap_auth_http_conf_t *conf = child;
|
|
|
1148
|
|
122
|
1149 u_char *p;
|
|
|
1150 size_t len;
|
|
|
1151 ngx_uint_t i;
|
|
|
1152 ngx_table_elt_t *header;
|
|
|
1153
|
|
76
|
1154 if (conf->peers == NULL) {
|
|
|
1155 conf->peers = prev->peers;
|
|
|
1156 conf->host_header = prev->host_header;
|
|
|
1157 conf->uri = prev->uri;
|
|
|
1158 }
|
|
|
1159
|
|
|
1160 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
|
|
1161
|
|
122
|
1162 if (conf->headers == NULL) {
|
|
|
1163 conf->headers = prev->headers;
|
|
|
1164 conf->header = prev->header;
|
|
|
1165 }
|
|
|
1166
|
|
|
1167 if (conf->headers && conf->header.len == 0) {
|
|
|
1168 len = 0;
|
|
|
1169 header = conf->headers->elts;
|
|
|
1170 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1171 len += header[i].key.len + 2 + header[i].value.len + 2;
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 p = ngx_palloc(cf->pool, len);
|
|
|
1175 if (p == NULL) {
|
|
|
1176 return NGX_CONF_ERROR;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179 conf->header.len = len;
|
|
|
1180 conf->header.data = p;
|
|
|
1181
|
|
|
1182 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1183 p = ngx_cpymem(p, header[i].key.data, header[i].key.len);
|
|
|
1184 *p++ = ':'; *p++ = ' ';
|
|
|
1185 p = ngx_cpymem(p, header[i].value.data, header[i].value.len);
|
|
|
1186 *p++ = CR; *p++ = LF;
|
|
|
1187 }
|
|
|
1188 }
|
|
|
1189
|
|
76
|
1190 return NGX_CONF_OK;
|
|
|
1191 }
|
|
|
1192
|
|
|
1193
|
|
|
1194 static char *
|
|
|
1195 ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
126
|
1196 {
|
|
76
|
1197 ngx_imap_auth_http_conf_t *ahcf = conf;
|
|
|
1198
|
|
|
1199 ngx_str_t *value, *url;
|
|
|
1200 ngx_inet_upstream_t inet_upstream;
|
|
|
1201 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
1202 ngx_unix_domain_upstream_t unix_upstream;
|
|
|
1203 #endif
|
|
122
|
1204
|
|
76
|
1205 value = cf->args->elts;
|
|
|
1206
|
|
|
1207 url = &value[1];
|
|
|
1208
|
|
|
1209 if (ngx_strncasecmp(url->data, "unix:", 5) == 0) {
|
|
|
1210
|
|
|
1211 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
1212
|
|
|
1213 ngx_memzero(&unix_upstream, sizeof(ngx_unix_domain_upstream_t));
|
|
|
1214
|
|
|
1215 unix_upstream.name = *url;
|
|
|
1216 unix_upstream.url = *url;
|
|
|
1217 unix_upstream.uri_part = 1;
|
|
|
1218
|
|
|
1219 ahcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream);
|
|
|
1220 if (ahcf->peers == NULL) {
|
|
|
1221 return NGX_CONF_ERROR;
|
|
|
1222 }
|
|
|
1223
|
|
|
1224 ahcf->host_header.len = sizeof("localhost") - 1;
|
|
|
1225 ahcf->host_header.data = (u_char *) "localhost";
|
|
|
1226 ahcf->uri = unix_upstream.uri;
|
|
126
|
1227
|
|
76
|
1228 #else
|
|
|
1229 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1230 "the unix domain sockets are not supported "
|
|
|
1231 "on this platform");
|
|
|
1232 return NGX_CONF_ERROR;
|
|
126
|
1233
|
|
76
|
1234 #endif
|
|
|
1235
|
|
|
1236 } else {
|
|
|
1237 ngx_memzero(&inet_upstream, sizeof(ngx_inet_upstream_t));
|
|
|
1238
|
|
|
1239 inet_upstream.name = *url;
|
|
|
1240 inet_upstream.url = *url;
|
|
|
1241 inet_upstream.default_port_value = 80;
|
|
|
1242 inet_upstream.uri_part = 1;
|
|
|
1243
|
|
|
1244 ahcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream);
|
|
|
1245 if (ahcf->peers == NULL) {
|
|
|
1246 return NGX_CONF_ERROR;
|
|
|
1247 }
|
|
|
1248
|
|
132
|
1249 ahcf->peers->number = 1;
|
|
|
1250
|
|
76
|
1251 ahcf->host_header = inet_upstream.host_header;
|
|
|
1252 ahcf->uri = inet_upstream.uri;
|
|
|
1253 }
|
|
|
1254
|
|
108
|
1255 if (ahcf->uri.len == 0) {
|
|
104
|
1256 ahcf->uri.len = sizeof("/") - 1;
|
|
|
1257 ahcf->uri.data = (u_char *) "/";
|
|
|
1258 }
|
|
|
1259
|
|
76
|
1260 return NGX_CONF_OK;
|
|
|
1261 }
|
|
122
|
1262
|
|
|
1263
|
|
|
1264 static char *
|
|
|
1265 ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
126
|
1266 {
|
|
122
|
1267 ngx_imap_auth_http_conf_t *ahcf = conf;
|
|
|
1268
|
|
|
1269 ngx_str_t *value;
|
|
|
1270 ngx_table_elt_t *header;
|
|
|
1271
|
|
|
1272 if (ahcf->headers == NULL) {
|
|
|
1273 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t));
|
|
|
1274 if (ahcf->headers == NULL) {
|
|
|
1275 return NGX_CONF_ERROR;
|
|
|
1276 }
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 header = ngx_array_push(ahcf->headers);
|
|
|
1280 if (header == NULL) {
|
|
|
1281 return NGX_CONF_ERROR;
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 value = cf->args->elts;
|
|
|
1285
|
|
|
1286 header->key = value[1];
|
|
|
1287 header->value = value[2];
|
|
|
1288
|
|
|
1289 return NGX_CONF_OK;
|
|
|
1290 }
|
