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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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260
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15 ngx_peer_addr_t *peer;
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76
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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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250
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134 static char *ngx_imap_auth_http_protocol[] = { "pop3", "imap" };
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135 static ngx_str_t ngx_imap_auth_http_method[] = {
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252
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136 ngx_string("plain"),
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137 ngx_string("apop"),
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138 ngx_string("cram-md5")
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250
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139 };
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76
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140
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141
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142 void
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143 ngx_imap_auth_http_init(ngx_imap_session_t *s)
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144 {
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145 ngx_int_t rc;
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96
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146 ngx_pool_t *pool;
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76
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147 ngx_imap_auth_http_ctx_t *ctx;
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148 ngx_imap_auth_http_conf_t *ahcf;
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149
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90
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150 s->connection->log->action = "in http auth state";
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151
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96
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152 pool = ngx_create_pool(2048, s->connection->log);
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153 if (pool == NULL) {
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76
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154 ngx_imap_session_internal_server_error(s);
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155 return;
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156 }
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157
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96
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158 ctx = ngx_pcalloc(pool, sizeof(ngx_imap_auth_http_ctx_t));
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159 if (ctx == NULL) {
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160 ngx_destroy_pool(pool);
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161 ngx_imap_session_internal_server_error(s);
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162 return;
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163 }
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164
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165 ctx->pool = pool;
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166
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76
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167 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module);
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168
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169 ctx->request = ngx_imap_auth_http_create_request(s, pool, ahcf);
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170 if (ctx->request == NULL) {
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96
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171 ngx_destroy_pool(ctx->pool);
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172 ngx_imap_session_internal_server_error(s);
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173 return;
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174 }
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175
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176 ngx_imap_set_ctx(s, ctx, ngx_imap_auth_http_module);
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177
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260
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178 ctx->peer.sockaddr = ahcf->peer->sockaddr;
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179 ctx->peer.socklen = ahcf->peer->socklen;
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180 ctx->peer.name = &ahcf->peer->name;
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181 ctx->peer.get = ngx_event_get_peer;
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76
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182 ctx->peer.log = s->connection->log;
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183 ctx->peer.log_error = NGX_ERROR_ERR;
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184
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185 rc = ngx_event_connect_peer(&ctx->peer);
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186
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92
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187 if (rc == NGX_ERROR || rc == NGX_BUSY || rc == NGX_DECLINED) {
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258
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188 if (ctx->peer.connection) {
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189 ngx_close_connection(ctx->peer.connection);
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190 }
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191
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96
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192 ngx_destroy_pool(ctx->pool);
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193 ngx_imap_session_internal_server_error(s);
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194 return;
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195 }
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196
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197 ctx->peer.connection->data = s;
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198 ctx->peer.connection->pool = s->connection->pool;
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199
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200 s->connection->read->handler = ngx_imap_auth_http_block_read;
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201 ctx->peer.connection->read->handler = ngx_imap_auth_http_read_handler;
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202 ctx->peer.connection->write->handler = ngx_imap_auth_http_write_handler;
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203
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204 ctx->handler = ngx_imap_auth_http_ignore_status_line;
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205
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90
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206 ngx_add_timer(ctx->peer.connection->read, ahcf->timeout);
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207 ngx_add_timer(ctx->peer.connection->write, ahcf->timeout);
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208
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76
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209 if (rc == NGX_OK) {
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210 ngx_imap_auth_http_write_handler(ctx->peer.connection->write);
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211 return;
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212 }
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213 }
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214
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215
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216 static void
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217 ngx_imap_auth_http_write_handler(ngx_event_t *wev)
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218 {
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219 ssize_t n, size;
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220 ngx_connection_t *c;
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221 ngx_imap_session_t *s;
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222 ngx_imap_auth_http_ctx_t *ctx;
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223 ngx_imap_auth_http_conf_t *ahcf;
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224
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225 c = wev->data;
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226 s = c->data;
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227
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228 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
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229
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230 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, wev->log, 0,
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231 "imap auth http write handler");
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232
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126
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233 if (wev->timedout) {
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76
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234 ngx_log_error(NGX_LOG_ERR, wev->log, NGX_ETIMEDOUT,
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260
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235 "auth http server %V timed out", ctx->peer.name);
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76
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236 ngx_close_connection(ctx->peer.connection);
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96
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237 ngx_destroy_pool(ctx->pool);
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76
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238 ngx_imap_session_internal_server_error(s);
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239 return;
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240 }
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241
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242 size = ctx->request->last - ctx->request->pos;
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243
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244 n = ngx_send(c, ctx->request->pos, size);
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245
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246 if (n == NGX_ERROR) {
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247 ngx_close_connection(ctx->peer.connection);
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96
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248 ngx_destroy_pool(ctx->pool);
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76
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249 ngx_imap_session_internal_server_error(s);
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250 return;
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251 }
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252
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253 if (n > 0) {
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254 ctx->request->pos += n;
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255
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256 if (n == size) {
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257 wev->handler = ngx_imap_auth_http_dummy_handler;
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258
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259 if (wev->timer_set) {
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260 ngx_del_timer(wev);
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261 }
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262
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250
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263 if (ngx_handle_write_event(wev, 0) == NGX_ERROR) {
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264 ngx_close_connection(ctx->peer.connection);
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265 ngx_destroy_pool(ctx->pool);
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266 ngx_imap_session_internal_server_error(s);
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267 }
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268
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76
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269 return;
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270 }
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271 }
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272
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273 if (!wev->timer_set) {
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274 ahcf = ngx_imap_get_module_srv_conf(s, ngx_imap_auth_http_module);
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275 ngx_add_timer(wev, ahcf->timeout);
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276 }
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277 }
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278
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279
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280 static void
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281 ngx_imap_auth_http_read_handler(ngx_event_t *rev)
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282 {
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283 ssize_t n, size;
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284 ngx_connection_t *c;
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285 ngx_imap_session_t *s;
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286 ngx_imap_auth_http_ctx_t *ctx;
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287
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288 c = rev->data;
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289 s = c->data;
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290
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291 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0,
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292 "imap auth http read handler");
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293
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294 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
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295
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126
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296 if (rev->timedout) {
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76
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297 ngx_log_error(NGX_LOG_ERR, rev->log, NGX_ETIMEDOUT,
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260
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298 "auth http server %V timed out", ctx->peer.name);
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76
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299 ngx_close_connection(ctx->peer.connection);
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96
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300 ngx_destroy_pool(ctx->pool);
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76
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301 ngx_imap_session_internal_server_error(s);
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302 return;
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303 }
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304
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305 if (ctx->response == NULL) {
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96
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306 ctx->response = ngx_create_temp_buf(ctx->pool, 1024);
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76
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307 if (ctx->response == NULL) {
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308 ngx_close_connection(ctx->peer.connection);
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96
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309 ngx_destroy_pool(ctx->pool);
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76
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310 ngx_imap_session_internal_server_error(s);
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311 return;
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312 }
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313 }
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314
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315 size = ctx->response->end - ctx->response->last;
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316
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317 n = ngx_recv(c, ctx->response->pos, size);
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318
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319 if (n > 0) {
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320 ctx->response->last += n;
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321
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322 ctx->handler(s, ctx);
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323 return;
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324 }
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325
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326 if (n == NGX_AGAIN) {
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327 return;
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328 }
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329
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330 ngx_close_connection(ctx->peer.connection);
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96
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331 ngx_destroy_pool(ctx->pool);
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76
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332 ngx_imap_session_internal_server_error(s);
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333 }
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334
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335
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336 static void
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337 ngx_imap_auth_http_ignore_status_line(ngx_imap_session_t *s,
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338 ngx_imap_auth_http_ctx_t *ctx)
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339 {
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340 u_char *p, ch;
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341 enum {
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342 sw_start = 0,
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343 sw_H,
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344 sw_HT,
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345 sw_HTT,
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346 sw_HTTP,
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347 sw_skip,
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348 sw_almost_done
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349 } state;
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350
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351 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
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352 "imap auth http process status line");
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353
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354 state = ctx->state;
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355
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356 for (p = ctx->response->pos; p < ctx->response->last; p++) {
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357 ch = *p;
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358
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359 switch (state) {
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360
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361 /* "HTTP/" */
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362 case sw_start:
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363 if (ch == 'H') {
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364 state = sw_H;
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365 break;
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366 }
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367 goto next;
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368
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369 case sw_H:
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370 if (ch == 'T') {
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371 state = sw_HT;
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372 break;
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373 }
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374 goto next;
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375
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376 case sw_HT:
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377 if (ch == 'T') {
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378 state = sw_HTT;
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379 break;
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380 }
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381 goto next;
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382
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383 case sw_HTT:
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384 if (ch == 'P') {
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385 state = sw_HTTP;
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386 break;
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387 }
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388 goto next;
|
|
|
389
|
|
|
390 case sw_HTTP:
|
|
|
391 if (ch == '/') {
|
|
|
392 state = sw_skip;
|
|
|
393 break;
|
|
|
394 }
|
|
|
395 goto next;
|
|
|
396
|
|
|
397 /* any text until end of line */
|
|
|
398 case sw_skip:
|
|
|
399 switch (ch) {
|
|
|
400 case CR:
|
|
|
401 state = sw_almost_done;
|
|
|
402
|
|
|
403 break;
|
|
126
|
404 case LF:
|
|
76
|
405 goto done;
|
|
|
406 }
|
|
|
407 break;
|
|
|
408
|
|
|
409 /* end of status line */
|
|
|
410 case sw_almost_done:
|
|
|
411 if (ch == LF) {
|
|
|
412 goto done;
|
|
|
413 }
|
|
|
414
|
|
|
415 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
416 "auth http server &V sent invalid response",
|
|
260
|
417 ctx->peer.name);
|
|
76
|
418 ngx_close_connection(ctx->peer.connection);
|
|
96
|
419 ngx_destroy_pool(ctx->pool);
|
|
76
|
420 ngx_imap_session_internal_server_error(s);
|
|
|
421 return;
|
|
|
422 }
|
|
|
423 }
|
|
|
424
|
|
|
425 ctx->response->pos = p;
|
|
|
426 ctx->state = state;
|
|
|
427
|
|
|
428 return;
|
|
|
429
|
|
|
430 next:
|
|
|
431
|
|
|
432 p = ctx->response->start - 1;
|
|
|
433
|
|
|
434 done:
|
|
|
435
|
|
|
436 ctx->response->pos = p + 1;
|
|
|
437 ctx->state = 0;
|
|
|
438 ctx->handler = ngx_imap_auth_http_process_headers;
|
|
|
439 ctx->handler(s, ctx);
|
|
|
440 }
|
|
|
441
|
|
|
442
|
|
|
443 static void
|
|
|
444 ngx_imap_auth_http_process_headers(ngx_imap_session_t *s,
|
|
|
445 ngx_imap_auth_http_ctx_t *ctx)
|
|
|
446 {
|
|
|
447 u_char *p;
|
|
96
|
448 time_t timer;
|
|
76
|
449 size_t len, size;
|
|
|
450 ngx_int_t rc, port, n;
|
|
260
|
451 ngx_peer_addr_t *peer;
|
|
76
|
452 struct sockaddr_in *sin;
|
|
|
453
|
|
|
454 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
455 "imap auth http process headers");
|
|
|
456
|
|
|
457 for ( ;; ) {
|
|
|
458 rc = ngx_imap_auth_http_parse_header_line(s, ctx);
|
|
|
459
|
|
|
460 if (rc == NGX_OK) {
|
|
|
461
|
|
|
462 #if (NGX_DEBUG)
|
|
|
463 {
|
|
|
464 ngx_str_t key, value;
|
|
|
465
|
|
|
466 key.len = ctx->header_name_end - ctx->header_name_start;
|
|
|
467 key.data = ctx->header_name_start;
|
|
|
468 value.len = ctx->header_end - ctx->header_start;
|
|
|
469 value.data = ctx->header_start;
|
|
|
470
|
|
|
471 ngx_log_debug2(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
472 "auth http header: \"%V: %V\"",
|
|
|
473 &key, &value);
|
|
|
474 }
|
|
|
475 #endif
|
|
|
476
|
|
|
477 len = ctx->header_name_end - ctx->header_name_start;
|
|
|
478
|
|
|
479 if (len == sizeof("Auth-Status") - 1
|
|
286
|
480 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
481 (u_char *) "Auth-Status",
|
|
|
482 sizeof("Auth-Status") - 1)
|
|
|
483 == 0)
|
|
76
|
484 {
|
|
|
485 len = ctx->header_end - ctx->header_start;
|
|
|
486
|
|
|
487 if (len == 2
|
|
|
488 && ctx->header_start[0] == 'O'
|
|
|
489 && ctx->header_start[1] == 'K')
|
|
|
490 {
|
|
|
491 continue;
|
|
|
492 }
|
|
|
493
|
|
260
|
494 if (len == 4
|
|
|
495 && ctx->header_start[0] == 'W'
|
|
|
496 && ctx->header_start[1] == 'A'
|
|
|
497 && ctx->header_start[2] == 'I'
|
|
|
498 && ctx->header_start[3] == 'T')
|
|
|
499 {
|
|
|
500 s->auth_wait = 1;
|
|
|
501 continue;
|
|
|
502 }
|
|
|
503
|
|
116
|
504 ctx->errmsg.len = len;
|
|
|
505 ctx->errmsg.data = ctx->header_start;
|
|
|
506
|
|
76
|
507 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
258
|
508 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1;
|
|
76
|
509
|
|
|
510 } else {
|
|
258
|
511 size = s->tag.len + sizeof("NO ") - 1 + len
|
|
76
|
512 + sizeof(CRLF) - 1;
|
|
|
513 }
|
|
|
514
|
|
|
515 p = ngx_pcalloc(s->connection->pool, size);
|
|
|
516 if (p == NULL) {
|
|
92
|
517 ngx_close_connection(ctx->peer.connection);
|
|
96
|
518 ngx_destroy_pool(ctx->pool);
|
|
76
|
519 ngx_imap_session_internal_server_error(s);
|
|
|
520 return;
|
|
|
521 }
|
|
|
522
|
|
|
523 ctx->err.data = p;
|
|
|
524
|
|
|
525 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
526 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R';
|
|
|
527
|
|
|
528 } else {
|
|
|
529 p = ngx_cpymem(p, s->tag.data, s->tag.len);
|
|
|
530 *p++ = 'N'; *p++ = 'O';
|
|
|
531 }
|
|
|
532
|
|
|
533 *p++ = ' ';
|
|
116
|
534
|
|
76
|
535 p = ngx_cpymem(p, ctx->header_start, len);
|
|
|
536 *p++ = CR; *p++ = LF;
|
|
|
537
|
|
|
538 ctx->err.len = p - ctx->err.data;
|
|
|
539
|
|
|
540 continue;
|
|
|
541 }
|
|
|
542
|
|
|
543 if (len == sizeof("Auth-Server") - 1
|
|
286
|
544 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
545 (u_char *) "Auth-Server",
|
|
|
546 sizeof("Auth-Server") - 1)
|
|
|
547 == 0)
|
|
76
|
548 {
|
|
|
549 ctx->addr.len = ctx->header_end - ctx->header_start;
|
|
|
550 ctx->addr.data = ctx->header_start;
|
|
|
551
|
|
|
552 continue;
|
|
|
553 }
|
|
|
554
|
|
|
555 if (len == sizeof("Auth-Port") - 1
|
|
286
|
556 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
557 (u_char *) "Auth-Port",
|
|
|
558 sizeof("Auth-Port") - 1)
|
|
|
559 == 0)
|
|
76
|
560 {
|
|
|
561 ctx->port.len = ctx->header_end - ctx->header_start;
|
|
|
562 ctx->port.data = ctx->header_start;
|
|
|
563
|
|
|
564 continue;
|
|
|
565 }
|
|
|
566
|
|
|
567 if (len == sizeof("Auth-User") - 1
|
|
286
|
568 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
569 (u_char *) "Auth-User",
|
|
|
570 sizeof("Auth-User") - 1)
|
|
|
571 == 0)
|
|
76
|
572 {
|
|
|
573 s->login.len = ctx->header_end - ctx->header_start;
|
|
116
|
574
|
|
|
575 s->login.data = ngx_palloc(s->connection->pool, s->login.len);
|
|
|
576 if (s->login.data == NULL) {
|
|
|
577 ngx_close_connection(ctx->peer.connection);
|
|
|
578 ngx_destroy_pool(ctx->pool);
|
|
|
579 ngx_imap_session_internal_server_error(s);
|
|
|
580 return;
|
|
|
581 }
|
|
|
582
|
|
|
583 ngx_memcpy(s->login.data, ctx->header_start, s->login.len);
|
|
76
|
584
|
|
|
585 continue;
|
|
|
586 }
|
|
|
587
|
|
250
|
588 if (len == sizeof("Auth-Pass") - 1
|
|
286
|
589 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
590 (u_char *) "Auth-Pass",
|
|
|
591 sizeof("Auth-Pass") - 1)
|
|
|
592 == 0)
|
|
250
|
593 {
|
|
|
594 s->passwd.len = ctx->header_end - ctx->header_start;
|
|
|
595
|
|
|
596 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len);
|
|
|
597 if (s->passwd.data == NULL) {
|
|
|
598 ngx_close_connection(ctx->peer.connection);
|
|
|
599 ngx_destroy_pool(ctx->pool);
|
|
|
600 ngx_imap_session_internal_server_error(s);
|
|
|
601 return;
|
|
|
602 }
|
|
|
603
|
|
|
604 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len);
|
|
|
605
|
|
|
606 continue;
|
|
|
607 }
|
|
|
608
|
|
76
|
609 if (len == sizeof("Auth-Wait") - 1
|
|
286
|
610 && ngx_strncasecmp(ctx->header_name_start,
|
|
|
611 (u_char *) "Auth-Wait",
|
|
|
612 sizeof("Auth-Wait") - 1)
|
|
|
613 == 0)
|
|
76
|
614 {
|
|
|
615 n = ngx_atoi(ctx->header_start,
|
|
|
616 ctx->header_end - ctx->header_start);
|
|
|
617
|
|
|
618 if (n != NGX_ERROR) {
|
|
|
619 ctx->sleep = n;
|
|
|
620 }
|
|
|
621
|
|
|
622 continue;
|
|
|
623 }
|
|
|
624
|
|
|
625 /* ignore other headers */
|
|
|
626
|
|
|
627 continue;
|
|
|
628 }
|
|
|
629
|
|
|
630 if (rc == NGX_DONE) {
|
|
|
631 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
632 "auth http header done");
|
|
|
633
|
|
|
634 ngx_close_connection(ctx->peer.connection);
|
|
|
635
|
|
|
636 if (ctx->err.len) {
|
|
116
|
637 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
|
638 "client login failed: \"%V\"", &ctx->errmsg);
|
|
|
639
|
|
88
|
640 s->out = ctx->err;
|
|
96
|
641 timer = ctx->sleep;
|
|
76
|
642
|
|
96
|
643 ngx_destroy_pool(ctx->pool);
|
|
|
644
|
|
|
645 if (timer == 0) {
|
|
88
|
646 s->quit = 1;
|
|
90
|
647 ngx_imap_send(s->connection->write);
|
|
|
648 return;
|
|
|
649 }
|
|
88
|
650
|
|
96
|
651 ngx_add_timer(s->connection->read, timer * 1000);
|
|
76
|
652
|
|
|
653 s->connection->read->handler = ngx_imap_auth_sleep_handler;
|
|
|
654
|
|
|
655 return;
|
|
|
656 }
|
|
|
657
|
|
260
|
658 if (s->auth_wait) {
|
|
|
659 timer = ctx->sleep;
|
|
|
660
|
|
|
661 ngx_destroy_pool(ctx->pool);
|
|
|
662
|
|
|
663 if (timer == 0) {
|
|
|
664 ngx_imap_auth_http_init(s);
|
|
|
665 return;
|
|
|
666 }
|
|
|
667
|
|
|
668 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
669
|
|
|
670 s->connection->read->handler = ngx_imap_auth_sleep_handler;
|
|
|
671
|
|
|
672 return;
|
|
|
673 }
|
|
|
674
|
|
76
|
675 if (ctx->addr.len == 0 || ctx->port.len == 0) {
|
|
|
676 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
677 "auth http server %V did not send server or port",
|
|
260
|
678 ctx->peer.name);
|
|
96
|
679 ngx_destroy_pool(ctx->pool);
|
|
76
|
680 ngx_imap_session_internal_server_error(s);
|
|
|
681 return;
|
|
|
682 }
|
|
|
683
|
|
250
|
684 if (s->passwd.data == NULL) {
|
|
|
685 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
686 "auth http server %V did not send password",
|
|
260
|
687 ctx->peer.name);
|
|
250
|
688 ngx_destroy_pool(ctx->pool);
|
|
|
689 ngx_imap_session_internal_server_error(s);
|
|
|
690 return;
|
|
|
691 }
|
|
|
692
|
|
260
|
693 peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_peer_addr_t));
|
|
|
694 if (peer == NULL) {
|
|
96
|
695 ngx_destroy_pool(ctx->pool);
|
|
76
|
696 ngx_imap_session_internal_server_error(s);
|
|
|
697 return;
|
|
|
698 }
|
|
|
699
|
|
|
700 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in));
|
|
|
701 if (sin == NULL) {
|
|
96
|
702 ngx_destroy_pool(ctx->pool);
|
|
76
|
703 ngx_imap_session_internal_server_error(s);
|
|
|
704 return;
|
|
|
705 }
|
|
|
706
|
|
|
707 sin->sin_family = AF_INET;
|
|
|
708
|
|
|
709 port = ngx_atoi(ctx->port.data, ctx->port.len);
|
|
|
710 if (port == NGX_ERROR || port < 1 || port > 65536) {
|
|
|
711 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
712 "auth http server %V sent invalid server "
|
|
|
713 "port:\"%V\"",
|
|
260
|
714 ctx->peer.name, &ctx->port);
|
|
96
|
715 ngx_destroy_pool(ctx->pool);
|
|
76
|
716 ngx_imap_session_internal_server_error(s);
|
|
|
717 return;
|
|
|
718 }
|
|
|
719
|
|
|
720 sin->sin_port = htons((in_port_t) port);
|
|
|
721
|
|
|
722 ctx->addr.data[ctx->addr.len] = '\0';
|
|
|
723 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data);
|
|
|
724 if (sin->sin_addr.s_addr == INADDR_NONE) {
|
|
|
725 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
726 "auth http server %V sent invalid server "
|
|
|
727 "address:\"%V\"",
|
|
260
|
728 ctx->peer.name, &ctx->addr);
|
|
96
|
729 ngx_destroy_pool(ctx->pool);
|
|
76
|
730 ngx_imap_session_internal_server_error(s);
|
|
|
731 return;
|
|
|
732 }
|
|
|
733
|
|
260
|
734 peer->sockaddr = (struct sockaddr *) sin;
|
|
|
735 peer->socklen = sizeof(struct sockaddr_in);
|
|
76
|
736
|
|
|
737 len = ctx->addr.len + 1 + ctx->port.len;
|
|
|
738
|
|
260
|
739 peer->name.len = len;
|
|
76
|
740
|
|
260
|
741 peer->name.data = ngx_palloc(s->connection->pool, len);
|
|
|
742 if (peer->name.data == NULL) {
|
|
96
|
743 ngx_destroy_pool(ctx->pool);
|
|
76
|
744 ngx_imap_session_internal_server_error(s);
|
|
|
745 return;
|
|
|
746 }
|
|
|
747
|
|
|
748 len = ctx->addr.len;
|
|
|
749
|
|
260
|
750 ngx_memcpy(peer->name.data, ctx->addr.data, len);
|
|
76
|
751
|
|
260
|
752 peer->name.data[len++] = ':';
|
|
76
|
753
|
|
260
|
754 ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len);
|
|
76
|
755
|
|
96
|
756 ngx_destroy_pool(ctx->pool);
|
|
260
|
757 ngx_imap_proxy_init(s, peer);
|
|
76
|
758
|
|
|
759 return;
|
|
|
760 }
|
|
|
761
|
|
|
762 if (rc == NGX_AGAIN ) {
|
|
|
763 return;
|
|
|
764 }
|
|
|
765
|
|
|
766 /* rc == NGX_ERROR */
|
|
|
767
|
|
|
768 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
769 "auth http server %V sent invalid header in response",
|
|
260
|
770 ctx->peer.name);
|
|
76
|
771 ngx_close_connection(ctx->peer.connection);
|
|
96
|
772 ngx_destroy_pool(ctx->pool);
|
|
76
|
773 ngx_imap_session_internal_server_error(s);
|
|
|
774
|
|
|
775 return;
|
|
|
776 }
|
|
|
777 }
|
|
|
778
|
|
|
779
|
|
|
780 static void
|
|
|
781 ngx_imap_auth_sleep_handler(ngx_event_t *rev)
|
|
|
782 {
|
|
92
|
783 ngx_connection_t *c;
|
|
|
784 ngx_imap_session_t *s;
|
|
|
785 ngx_imap_core_srv_conf_t *cscf;
|
|
76
|
786
|
|
|
787 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap auth sleep handler");
|
|
|
788
|
|
|
789 c = rev->data;
|
|
|
790 s = c->data;
|
|
|
791
|
|
|
792 if (rev->timedout) {
|
|
|
793
|
|
|
794 rev->timedout = 0;
|
|
|
795
|
|
260
|
796 if (s->auth_wait) {
|
|
|
797 s->auth_wait = 0;
|
|
|
798 ngx_imap_auth_http_init(s);
|
|
|
799 return;
|
|
|
800 }
|
|
|
801
|
|
76
|
802 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
803 s->imap_state = ngx_pop3_start;
|
|
|
804 s->connection->read->handler = ngx_pop3_auth_state;
|
|
|
805
|
|
|
806 } else {
|
|
|
807 s->imap_state = ngx_imap_start;
|
|
|
808 s->connection->read->handler = ngx_imap_auth_state;
|
|
|
809 }
|
|
|
810
|
|
250
|
811 s->auth_method = NGX_IMAP_AUTH_PLAIN;
|
|
|
812
|
|
92
|
813 c->log->action = "in auth state";
|
|
|
814
|
|
|
815 ngx_imap_send(s->connection->write);
|
|
|
816
|
|
132
|
817 if (c->destroyed) {
|
|
92
|
818 return;
|
|
|
819 }
|
|
|
820
|
|
|
821 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module);
|
|
|
822
|
|
|
823 ngx_add_timer(rev, cscf->timeout);
|
|
|
824
|
|
76
|
825 if (rev->ready) {
|
|
|
826 s->connection->read->handler(rev);
|
|
|
827 return;
|
|
|
828 }
|
|
|
829
|
|
|
830 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
831 ngx_imap_close_connection(s->connection);
|
|
|
832 }
|
|
|
833
|
|
|
834 return;
|
|
|
835 }
|
|
|
836
|
|
|
837 if (rev->active) {
|
|
|
838 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
839 ngx_imap_close_connection(s->connection);
|
|
|
840 }
|
|
|
841 }
|
|
|
842 }
|
|
|
843
|
|
|
844
|
|
|
845 static ngx_int_t
|
|
|
846 ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s,
|
|
|
847 ngx_imap_auth_http_ctx_t *ctx)
|
|
|
848 {
|
|
|
849 u_char c, ch, *p;
|
|
|
850 ngx_uint_t hash;
|
|
|
851 enum {
|
|
|
852 sw_start = 0,
|
|
|
853 sw_name,
|
|
|
854 sw_space_before_value,
|
|
|
855 sw_value,
|
|
|
856 sw_space_after_value,
|
|
126
|
857 sw_almost_done,
|
|
76
|
858 sw_header_almost_done
|
|
|
859 } state;
|
|
|
860
|
|
126
|
861 state = ctx->state;
|
|
76
|
862 hash = ctx->hash;
|
|
|
863
|
|
|
864 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
865 ch = *p;
|
|
|
866
|
|
|
867 switch (state) {
|
|
|
868
|
|
|
869 /* first char */
|
|
|
870 case sw_start:
|
|
|
871
|
|
|
872 switch (ch) {
|
|
|
873 case CR:
|
|
126
|
874 ctx->header_end = p;
|
|
76
|
875 state = sw_header_almost_done;
|
|
|
876 break;
|
|
126
|
877 case LF:
|
|
76
|
878 ctx->header_end = p;
|
|
|
879 goto header_done;
|
|
|
880 default:
|
|
|
881 state = sw_name;
|
|
|
882 ctx->header_name_start = p;
|
|
|
883
|
|
|
884 c = (u_char) (ch | 0x20);
|
|
|
885 if (c >= 'a' && c <= 'z') {
|
|
|
886 hash = c;
|
|
|
887 break;
|
|
|
888 }
|
|
|
889
|
|
|
890 if (ch >= '0' && ch <= '9') {
|
|
|
891 hash = ch;
|
|
|
892 break;
|
|
|
893 }
|
|
|
894
|
|
|
895 return NGX_ERROR;
|
|
|
896 }
|
|
|
897 break;
|
|
|
898
|
|
|
899 /* header name */
|
|
|
900 case sw_name:
|
|
|
901 c = (u_char) (ch | 0x20);
|
|
|
902 if (c >= 'a' && c <= 'z') {
|
|
|
903 hash += c;
|
|
|
904 break;
|
|
|
905 }
|
|
|
906
|
|
|
907 if (ch == ':') {
|
|
|
908 ctx->header_name_end = p;
|
|
|
909 state = sw_space_before_value;
|
|
|
910 break;
|
|
|
911 }
|
|
|
912
|
|
|
913 if (ch == '-') {
|
|
|
914 hash += ch;
|
|
|
915 break;
|
|
|
916 }
|
|
|
917
|
|
|
918 if (ch >= '0' && ch <= '9') {
|
|
|
919 hash += ch;
|
|
|
920 break;
|
|
|
921 }
|
|
|
922
|
|
|
923 if (ch == CR) {
|
|
|
924 ctx->header_name_end = p;
|
|
|
925 ctx->header_start = p;
|
|
|
926 ctx->header_end = p;
|
|
|
927 state = sw_almost_done;
|
|
|
928 break;
|
|
|
929 }
|
|
|
930
|
|
|
931 if (ch == LF) {
|
|
|
932 ctx->header_name_end = p;
|
|
|
933 ctx->header_start = p;
|
|
|
934 ctx->header_end = p;
|
|
|
935 goto done;
|
|
|
936 }
|
|
|
937
|
|
|
938 return NGX_ERROR;
|
|
|
939
|
|
|
940 /* space* before header value */
|
|
|
941 case sw_space_before_value:
|
|
|
942 switch (ch) {
|
|
|
943 case ' ':
|
|
|
944 break;
|
|
|
945 case CR:
|
|
|
946 ctx->header_start = p;
|
|
|
947 ctx->header_end = p;
|
|
|
948 state = sw_almost_done;
|
|
|
949 break;
|
|
|
950 case LF:
|
|
|
951 ctx->header_start = p;
|
|
|
952 ctx->header_end = p;
|
|
|
953 goto done;
|
|
|
954 default:
|
|
|
955 ctx->header_start = p;
|
|
|
956 state = sw_value;
|
|
|
957 break;
|
|
|
958 }
|
|
|
959 break;
|
|
|
960
|
|
|
961 /* header value */
|
|
|
962 case sw_value:
|
|
|
963 switch (ch) {
|
|
|
964 case ' ':
|
|
|
965 ctx->header_end = p;
|
|
|
966 state = sw_space_after_value;
|
|
|
967 break;
|
|
|
968 case CR:
|
|
|
969 ctx->header_end = p;
|
|
|
970 state = sw_almost_done;
|
|
|
971 break;
|
|
|
972 case LF:
|
|
|
973 ctx->header_end = p;
|
|
|
974 goto done;
|
|
|
975 }
|
|
|
976 break;
|
|
|
977
|
|
|
978 /* space* before end of header line */
|
|
|
979 case sw_space_after_value:
|
|
|
980 switch (ch) {
|
|
|
981 case ' ':
|
|
|
982 break;
|
|
|
983 case CR:
|
|
|
984 state = sw_almost_done;
|
|
|
985 break;
|
|
|
986 case LF:
|
|
|
987 goto done;
|
|
|
988 default:
|
|
|
989 state = sw_value;
|
|
|
990 break;
|
|
|
991 }
|
|
|
992 break;
|
|
|
993
|
|
|
994 /* end of header line */
|
|
|
995 case sw_almost_done:
|
|
|
996 switch (ch) {
|
|
|
997 case LF:
|
|
|
998 goto done;
|
|
|
999 default:
|
|
|
1000 return NGX_ERROR;
|
|
|
1001 }
|
|
|
1002
|
|
|
1003 /* end of header */
|
|
|
1004 case sw_header_almost_done:
|
|
|
1005 switch (ch) {
|
|
|
1006 case LF:
|
|
|
1007 goto header_done;
|
|
|
1008 default:
|
|
|
1009 return NGX_ERROR;
|
|
|
1010 }
|
|
|
1011 }
|
|
|
1012 }
|
|
|
1013
|
|
|
1014 ctx->response->pos = p;
|
|
|
1015 ctx->state = state;
|
|
|
1016 ctx->hash = hash;
|
|
|
1017
|
|
|
1018 return NGX_AGAIN;
|
|
|
1019
|
|
|
1020 done:
|
|
|
1021
|
|
|
1022 ctx->response->pos = p + 1;
|
|
|
1023 ctx->state = sw_start;
|
|
|
1024 ctx->hash = hash;
|
|
|
1025
|
|
|
1026 return NGX_OK;
|
|
|
1027
|
|
|
1028 header_done:
|
|
|
1029
|
|
|
1030 ctx->response->pos = p + 1;
|
|
|
1031 ctx->state = sw_start;
|
|
|
1032
|
|
|
1033 return NGX_DONE;
|
|
|
1034 }
|
|
|
1035
|
|
|
1036
|
|
|
1037 static void
|
|
|
1038 ngx_imap_auth_http_block_read(ngx_event_t *rev)
|
|
|
1039 {
|
|
|
1040 ngx_connection_t *c;
|
|
|
1041 ngx_imap_session_t *s;
|
|
|
1042 ngx_imap_auth_http_ctx_t *ctx;
|
|
|
1043
|
|
|
1044 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0,
|
|
|
1045 "imap auth http block read");
|
|
|
1046
|
|
|
1047 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1048 c = rev->data;
|
|
|
1049 s = c->data;
|
|
|
1050
|
|
|
1051 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
|
|
|
1052
|
|
|
1053 ngx_close_connection(ctx->peer.connection);
|
|
96
|
1054 ngx_destroy_pool(ctx->pool);
|
|
76
|
1055 ngx_imap_session_internal_server_error(s);
|
|
|
1056 }
|
|
|
1057 }
|
|
|
1058
|
|
|
1059
|
|
|
1060 static void
|
|
|
1061 ngx_imap_auth_http_dummy_handler(ngx_event_t *ev)
|
|
|
1062 {
|
|
|
1063 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0,
|
|
|
1064 "imap auth http dummy handler");
|
|
|
1065 }
|
|
|
1066
|
|
|
1067
|
|
|
1068 static ngx_buf_t *
|
|
96
|
1069 ngx_imap_auth_http_create_request(ngx_imap_session_t *s, ngx_pool_t *pool,
|
|
76
|
1070 ngx_imap_auth_http_conf_t *ahcf)
|
|
|
1071 {
|
|
|
1072 size_t len;
|
|
|
1073 ngx_buf_t *b;
|
|
182
|
1074 ngx_str_t login, passwd;
|
|
|
1075
|
|
|
1076 if (ngx_imap_auth_http_escape(pool, &s->login, &login) != NGX_OK) {
|
|
|
1077 return NULL;
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 if (ngx_imap_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) {
|
|
|
1081 return NULL;
|
|
|
1082 }
|
|
76
|
1083
|
|
|
1084 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1
|
|
|
1085 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1
|
|
258
|
1086 + sizeof("Auth-Method: ") - 1
|
|
|
1087 + ngx_imap_auth_http_method[s->auth_method].len
|
|
|
1088 + sizeof(CRLF) - 1
|
|
182
|
1089 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1
|
|
|
1090 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1
|
|
250
|
1091 + sizeof("Auth-Salt: ") - 1 + s->salt.len
|
|
76
|
1092 + sizeof("Auth-Protocol: imap" CRLF) - 1
|
|
|
1093 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN
|
|
|
1094 + sizeof(CRLF) - 1
|
|
|
1095 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len
|
|
|
1096 + sizeof(CRLF) - 1
|
|
|
1097 + sizeof(CRLF) - 1;
|
|
|
1098
|
|
96
|
1099 b = ngx_create_temp_buf(pool, len);
|
|
76
|
1100 if (b == NULL) {
|
|
|
1101 return NULL;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1);
|
|
122
|
1105 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len);
|
|
76
|
1106 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF,
|
|
|
1107 sizeof(" HTTP/1.0" CRLF) - 1);
|
|
|
1108
|
|
|
1109 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1);
|
|
122
|
1110 b->last = ngx_copy(b->last, ahcf->host_header.data,
|
|
76
|
1111 ahcf->host_header.len);
|
|
|
1112 *b->last++ = CR; *b->last++ = LF;
|
|
|
1113
|
|
250
|
1114 b->last = ngx_cpymem(b->last, "Auth-Method: ",
|
|
|
1115 sizeof("Auth-Method: ") - 1);
|
|
|
1116 b->last = ngx_cpymem(b->last,
|
|
|
1117 ngx_imap_auth_http_method[s->auth_method].data,
|
|
|
1118 ngx_imap_auth_http_method[s->auth_method].len);
|
|
|
1119 *b->last++ = CR; *b->last++ = LF;
|
|
76
|
1120
|
|
|
1121 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1);
|
|
182
|
1122 b->last = ngx_copy(b->last, login.data, login.len);
|
|
76
|
1123 *b->last++ = CR; *b->last++ = LF;
|
|
|
1124
|
|
|
1125 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1);
|
|
182
|
1126 b->last = ngx_copy(b->last, passwd.data, passwd.len);
|
|
76
|
1127 *b->last++ = CR; *b->last++ = LF;
|
|
|
1128
|
|
252
|
1129 if (s->auth_method != NGX_IMAP_AUTH_PLAIN && s->salt.len) {
|
|
250
|
1130 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1);
|
|
|
1131 b->last = ngx_copy(b->last, s->salt.data, s->salt.len);
|
|
|
1132
|
|
|
1133 s->passwd.data = NULL;
|
|
|
1134 }
|
|
|
1135
|
|
76
|
1136 b->last = ngx_cpymem(b->last, "Auth-Protocol: ",
|
|
|
1137 sizeof("Auth-Protocol: ") - 1);
|
|
|
1138 b->last = ngx_cpymem(b->last, ngx_imap_auth_http_protocol[s->protocol],
|
|
|
1139 sizeof("imap") - 1);
|
|
|
1140 *b->last++ = CR; *b->last++ = LF;
|
|
|
1141
|
|
|
1142 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF,
|
|
|
1143 s->login_attempt);
|
|
|
1144
|
|
|
1145 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1);
|
|
122
|
1146 b->last = ngx_copy(b->last, s->connection->addr_text.data,
|
|
76
|
1147 s->connection->addr_text.len);
|
|
|
1148 *b->last++ = CR; *b->last++ = LF;
|
|
|
1149
|
|
122
|
1150 if (ahcf->header.len) {
|
|
|
1151 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len);
|
|
|
1152 }
|
|
|
1153
|
|
76
|
1154 /* add "\r\n" at the header end */
|
|
|
1155 *b->last++ = CR; *b->last++ = LF;
|
|
|
1156
|
|
96
|
1157 #if (NGX_DEBUG_IMAP_PASSWD)
|
|
76
|
1158 {
|
|
|
1159 ngx_str_t l;
|
|
|
1160
|
|
|
1161 l.len = b->last - b->pos;
|
|
|
1162 l.data = b->pos;
|
|
|
1163 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
1164 "imap auth http header:\n\"%V\"", &l);
|
|
|
1165 }
|
|
|
1166 #endif
|
|
|
1167
|
|
|
1168 return b;
|
|
|
1169 }
|
|
|
1170
|
|
|
1171
|
|
182
|
1172 static ngx_int_t
|
|
|
1173 ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped)
|
|
|
1174 {
|
|
|
1175 u_char ch, *p;
|
|
|
1176 ngx_uint_t i, n;
|
|
|
1177
|
|
|
1178 n = 0;
|
|
|
1179
|
|
|
1180 for (i = 0; i < text->len; i++) {
|
|
|
1181 ch = text->data[i];
|
|
|
1182
|
|
|
1183 if (ch == CR || ch == LF) {
|
|
|
1184 n++;
|
|
|
1185 }
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 if (n == 0) {
|
|
|
1189 *escaped = *text;
|
|
|
1190 return NGX_OK;
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 escaped->len = text->len + n * 2;
|
|
|
1194
|
|
|
1195 p = ngx_palloc(pool, escaped->len);
|
|
|
1196 if (p == NULL) {
|
|
|
1197 return NGX_ERROR;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 escaped->data = p;
|
|
|
1201
|
|
|
1202 for (i = 0; i < text->len; i++) {
|
|
|
1203 ch = text->data[i];
|
|
|
1204
|
|
|
1205 if (ch == CR) {
|
|
|
1206 *p++ = '%';
|
|
|
1207 *p++ = '0';
|
|
|
1208 *p++ = 'D';
|
|
|
1209 continue;
|
|
|
1210 }
|
|
|
1211
|
|
|
1212 if (ch == LF) {
|
|
|
1213 *p++ = '%';
|
|
|
1214 *p++ = '0';
|
|
|
1215 *p++ = 'A';
|
|
|
1216 continue;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 *p++ = ch;
|
|
|
1220 }
|
|
|
1221
|
|
|
1222 return NGX_OK;
|
|
|
1223 }
|
|
|
1224
|
|
|
1225
|
|
76
|
1226 static void *
|
|
|
1227 ngx_imap_auth_http_create_conf(ngx_conf_t *cf)
|
|
126
|
1228 {
|
|
76
|
1229 ngx_imap_auth_http_conf_t *ahcf;
|
|
126
|
1230
|
|
76
|
1231 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_auth_http_conf_t));
|
|
|
1232 if (ahcf == NULL) {
|
|
|
1233 return NGX_CONF_ERROR;
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 ahcf->timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1237
|
|
|
1238 return ahcf;
|
|
|
1239 }
|
|
|
1240
|
|
|
1241
|
|
|
1242 static char *
|
|
|
1243 ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1244 {
|
|
|
1245 ngx_imap_auth_http_conf_t *prev = parent;
|
|
|
1246 ngx_imap_auth_http_conf_t *conf = child;
|
|
|
1247
|
|
122
|
1248 u_char *p;
|
|
|
1249 size_t len;
|
|
|
1250 ngx_uint_t i;
|
|
|
1251 ngx_table_elt_t *header;
|
|
|
1252
|
|
260
|
1253 if (conf->peer == NULL) {
|
|
|
1254 conf->peer = prev->peer;
|
|
76
|
1255 conf->host_header = prev->host_header;
|
|
|
1256 conf->uri = prev->uri;
|
|
|
1257 }
|
|
|
1258
|
|
|
1259 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
|
|
1260
|
|
122
|
1261 if (conf->headers == NULL) {
|
|
|
1262 conf->headers = prev->headers;
|
|
|
1263 conf->header = prev->header;
|
|
|
1264 }
|
|
|
1265
|
|
|
1266 if (conf->headers && conf->header.len == 0) {
|
|
|
1267 len = 0;
|
|
|
1268 header = conf->headers->elts;
|
|
|
1269 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1270 len += header[i].key.len + 2 + header[i].value.len + 2;
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 p = ngx_palloc(cf->pool, len);
|
|
|
1274 if (p == NULL) {
|
|
|
1275 return NGX_CONF_ERROR;
|
|
|
1276 }
|
|
|
1277
|
|
|
1278 conf->header.len = len;
|
|
|
1279 conf->header.data = p;
|
|
|
1280
|
|
|
1281 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1282 p = ngx_cpymem(p, header[i].key.data, header[i].key.len);
|
|
|
1283 *p++ = ':'; *p++ = ' ';
|
|
|
1284 p = ngx_cpymem(p, header[i].value.data, header[i].value.len);
|
|
|
1285 *p++ = CR; *p++ = LF;
|
|
|
1286 }
|
|
|
1287 }
|
|
|
1288
|
|
76
|
1289 return NGX_CONF_OK;
|
|
|
1290 }
|
|
|
1291
|
|
|
1292
|
|
|
1293 static char *
|
|
|
1294 ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
126
|
1295 {
|
|
76
|
1296 ngx_imap_auth_http_conf_t *ahcf = conf;
|
|
|
1297
|
|
252
|
1298 ngx_str_t *value;
|
|
|
1299 ngx_url_t u;
|
|
122
|
1300
|
|
76
|
1301 value = cf->args->elts;
|
|
|
1302
|
|
252
|
1303 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
76
|
1304
|
|
252
|
1305 u.url = value[1];
|
|
266
|
1306 u.default_port = 80;
|
|
252
|
1307 u.uri_part = 1;
|
|
260
|
1308 u.one_addr = 1;
|
|
126
|
1309
|
|
252
|
1310 if (ngx_parse_url(cf, &u) != NGX_OK) {
|
|
|
1311 if (u.err) {
|
|
|
1312 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1313 "%s in auth_http \"%V\"", u.err, &u.url);
|
|
|
1314 }
|
|
|
1315 }
|
|
76
|
1316
|
|
260
|
1317 ahcf->peer = u.addrs;
|
|
76
|
1318
|
|
266
|
1319 ahcf->host_header = u.host;
|
|
252
|
1320 ahcf->uri = u.uri;
|
|
76
|
1321
|
|
108
|
1322 if (ahcf->uri.len == 0) {
|
|
104
|
1323 ahcf->uri.len = sizeof("/") - 1;
|
|
|
1324 ahcf->uri.data = (u_char *) "/";
|
|
|
1325 }
|
|
|
1326
|
|
76
|
1327 return NGX_CONF_OK;
|
|
|
1328 }
|
|
122
|
1329
|
|
|
1330
|
|
|
1331 static char *
|
|
|
1332 ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
126
|
1333 {
|
|
122
|
1334 ngx_imap_auth_http_conf_t *ahcf = conf;
|
|
|
1335
|
|
|
1336 ngx_str_t *value;
|
|
|
1337 ngx_table_elt_t *header;
|
|
|
1338
|
|
|
1339 if (ahcf->headers == NULL) {
|
|
|
1340 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t));
|
|
|
1341 if (ahcf->headers == NULL) {
|
|
|
1342 return NGX_CONF_ERROR;
|
|
|
1343 }
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 header = ngx_array_push(ahcf->headers);
|
|
|
1347 if (header == NULL) {
|
|
|
1348 return NGX_CONF_ERROR;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 value = cf->args->elts;
|
|
|
1352
|
|
|
1353 header->key = value[1];
|
|
|
1354 header->value = value[2];
|
|
|
1355
|
|
|
1356 return NGX_CONF_OK;
|
|
|
1357 }
|
