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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
|
|
|
480 && ngx_strncasecmp(ctx->header_name_start, "Auth-Status",
|
|
|
481 sizeof("Auth-Status") - 1) == 0)
|
|
|
482 {
|
|
|
483 len = ctx->header_end - ctx->header_start;
|
|
|
484
|
|
|
485 if (len == 2
|
|
|
486 && ctx->header_start[0] == 'O'
|
|
|
487 && ctx->header_start[1] == 'K')
|
|
|
488 {
|
|
|
489 continue;
|
|
|
490 }
|
|
|
491
|
|
260
|
492 if (len == 4
|
|
|
493 && ctx->header_start[0] == 'W'
|
|
|
494 && ctx->header_start[1] == 'A'
|
|
|
495 && ctx->header_start[2] == 'I'
|
|
|
496 && ctx->header_start[3] == 'T')
|
|
|
497 {
|
|
|
498 s->auth_wait = 1;
|
|
|
499 continue;
|
|
|
500 }
|
|
|
501
|
|
116
|
502 ctx->errmsg.len = len;
|
|
|
503 ctx->errmsg.data = ctx->header_start;
|
|
|
504
|
|
76
|
505 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
258
|
506 size = sizeof("-ERR ") - 1 + len + sizeof(CRLF) - 1;
|
|
76
|
507
|
|
|
508 } else {
|
|
258
|
509 size = s->tag.len + sizeof("NO ") - 1 + len
|
|
76
|
510 + sizeof(CRLF) - 1;
|
|
|
511 }
|
|
|
512
|
|
|
513 p = ngx_pcalloc(s->connection->pool, size);
|
|
|
514 if (p == NULL) {
|
|
92
|
515 ngx_close_connection(ctx->peer.connection);
|
|
96
|
516 ngx_destroy_pool(ctx->pool);
|
|
76
|
517 ngx_imap_session_internal_server_error(s);
|
|
|
518 return;
|
|
|
519 }
|
|
|
520
|
|
|
521 ctx->err.data = p;
|
|
|
522
|
|
|
523 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
524 *p++ = '-'; *p++ = 'E'; *p++ = 'R'; *p++ = 'R';
|
|
|
525
|
|
|
526 } else {
|
|
|
527 p = ngx_cpymem(p, s->tag.data, s->tag.len);
|
|
|
528 *p++ = 'N'; *p++ = 'O';
|
|
|
529 }
|
|
|
530
|
|
|
531 *p++ = ' ';
|
|
116
|
532
|
|
76
|
533 p = ngx_cpymem(p, ctx->header_start, len);
|
|
|
534 *p++ = CR; *p++ = LF;
|
|
|
535
|
|
|
536 ctx->err.len = p - ctx->err.data;
|
|
|
537
|
|
|
538 continue;
|
|
|
539 }
|
|
|
540
|
|
|
541 if (len == sizeof("Auth-Server") - 1
|
|
|
542 && ngx_strncasecmp(ctx->header_name_start, "Auth-Server",
|
|
|
543 sizeof("Auth-Server") - 1) == 0)
|
|
|
544 {
|
|
|
545 ctx->addr.len = ctx->header_end - ctx->header_start;
|
|
|
546 ctx->addr.data = ctx->header_start;
|
|
|
547
|
|
|
548 continue;
|
|
|
549 }
|
|
|
550
|
|
|
551 if (len == sizeof("Auth-Port") - 1
|
|
|
552 && ngx_strncasecmp(ctx->header_name_start, "Auth-Port",
|
|
|
553 sizeof("Auth-Port") - 1) == 0)
|
|
|
554 {
|
|
|
555 ctx->port.len = ctx->header_end - ctx->header_start;
|
|
|
556 ctx->port.data = ctx->header_start;
|
|
|
557
|
|
|
558 continue;
|
|
|
559 }
|
|
|
560
|
|
|
561 if (len == sizeof("Auth-User") - 1
|
|
|
562 && ngx_strncasecmp(ctx->header_name_start, "Auth-User",
|
|
|
563 sizeof("Auth-User") - 1) == 0)
|
|
|
564 {
|
|
|
565 s->login.len = ctx->header_end - ctx->header_start;
|
|
116
|
566
|
|
|
567 s->login.data = ngx_palloc(s->connection->pool, s->login.len);
|
|
|
568 if (s->login.data == NULL) {
|
|
|
569 ngx_close_connection(ctx->peer.connection);
|
|
|
570 ngx_destroy_pool(ctx->pool);
|
|
|
571 ngx_imap_session_internal_server_error(s);
|
|
|
572 return;
|
|
|
573 }
|
|
|
574
|
|
|
575 ngx_memcpy(s->login.data, ctx->header_start, s->login.len);
|
|
76
|
576
|
|
|
577 continue;
|
|
|
578 }
|
|
|
579
|
|
250
|
580 if (len == sizeof("Auth-Pass") - 1
|
|
|
581 && ngx_strncasecmp(ctx->header_name_start, "Auth-Pass",
|
|
|
582 sizeof("Auth-Pass") - 1) == 0)
|
|
|
583 {
|
|
|
584 s->passwd.len = ctx->header_end - ctx->header_start;
|
|
|
585
|
|
|
586 s->passwd.data = ngx_palloc(s->connection->pool, s->passwd.len);
|
|
|
587 if (s->passwd.data == NULL) {
|
|
|
588 ngx_close_connection(ctx->peer.connection);
|
|
|
589 ngx_destroy_pool(ctx->pool);
|
|
|
590 ngx_imap_session_internal_server_error(s);
|
|
|
591 return;
|
|
|
592 }
|
|
|
593
|
|
|
594 ngx_memcpy(s->passwd.data, ctx->header_start, s->passwd.len);
|
|
|
595
|
|
|
596 continue;
|
|
|
597 }
|
|
|
598
|
|
76
|
599 if (len == sizeof("Auth-Wait") - 1
|
|
|
600 && ngx_strncasecmp(ctx->header_name_start, "Auth-Wait",
|
|
|
601 sizeof("Auth-Wait") - 1) == 0)
|
|
|
602 {
|
|
|
603 n = ngx_atoi(ctx->header_start,
|
|
|
604 ctx->header_end - ctx->header_start);
|
|
|
605
|
|
|
606 if (n != NGX_ERROR) {
|
|
|
607 ctx->sleep = n;
|
|
|
608 }
|
|
|
609
|
|
|
610 continue;
|
|
|
611 }
|
|
|
612
|
|
|
613 /* ignore other headers */
|
|
|
614
|
|
|
615 continue;
|
|
|
616 }
|
|
|
617
|
|
|
618 if (rc == NGX_DONE) {
|
|
|
619 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
620 "auth http header done");
|
|
|
621
|
|
|
622 ngx_close_connection(ctx->peer.connection);
|
|
|
623
|
|
|
624 if (ctx->err.len) {
|
|
116
|
625 ngx_log_error(NGX_LOG_INFO, s->connection->log, 0,
|
|
|
626 "client login failed: \"%V\"", &ctx->errmsg);
|
|
|
627
|
|
88
|
628 s->out = ctx->err;
|
|
96
|
629 timer = ctx->sleep;
|
|
76
|
630
|
|
96
|
631 ngx_destroy_pool(ctx->pool);
|
|
|
632
|
|
|
633 if (timer == 0) {
|
|
88
|
634 s->quit = 1;
|
|
90
|
635 ngx_imap_send(s->connection->write);
|
|
|
636 return;
|
|
|
637 }
|
|
88
|
638
|
|
96
|
639 ngx_add_timer(s->connection->read, timer * 1000);
|
|
76
|
640
|
|
|
641 s->connection->read->handler = ngx_imap_auth_sleep_handler;
|
|
|
642
|
|
|
643 return;
|
|
|
644 }
|
|
|
645
|
|
260
|
646 if (s->auth_wait) {
|
|
|
647 timer = ctx->sleep;
|
|
|
648
|
|
|
649 ngx_destroy_pool(ctx->pool);
|
|
|
650
|
|
|
651 if (timer == 0) {
|
|
|
652 ngx_imap_auth_http_init(s);
|
|
|
653 return;
|
|
|
654 }
|
|
|
655
|
|
|
656 ngx_add_timer(s->connection->read, timer * 1000);
|
|
|
657
|
|
|
658 s->connection->read->handler = ngx_imap_auth_sleep_handler;
|
|
|
659
|
|
|
660 return;
|
|
|
661 }
|
|
|
662
|
|
76
|
663 if (ctx->addr.len == 0 || ctx->port.len == 0) {
|
|
|
664 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
665 "auth http server %V did not send server or port",
|
|
260
|
666 ctx->peer.name);
|
|
96
|
667 ngx_destroy_pool(ctx->pool);
|
|
76
|
668 ngx_imap_session_internal_server_error(s);
|
|
|
669 return;
|
|
|
670 }
|
|
|
671
|
|
250
|
672 if (s->passwd.data == NULL) {
|
|
|
673 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
|
674 "auth http server %V did not send password",
|
|
260
|
675 ctx->peer.name);
|
|
250
|
676 ngx_destroy_pool(ctx->pool);
|
|
|
677 ngx_imap_session_internal_server_error(s);
|
|
|
678 return;
|
|
|
679 }
|
|
|
680
|
|
260
|
681 peer = ngx_pcalloc(s->connection->pool, sizeof(ngx_peer_addr_t));
|
|
|
682 if (peer == NULL) {
|
|
96
|
683 ngx_destroy_pool(ctx->pool);
|
|
76
|
684 ngx_imap_session_internal_server_error(s);
|
|
|
685 return;
|
|
|
686 }
|
|
|
687
|
|
|
688 sin = ngx_pcalloc(s->connection->pool, sizeof(struct sockaddr_in));
|
|
|
689 if (sin == NULL) {
|
|
96
|
690 ngx_destroy_pool(ctx->pool);
|
|
76
|
691 ngx_imap_session_internal_server_error(s);
|
|
|
692 return;
|
|
|
693 }
|
|
|
694
|
|
|
695 sin->sin_family = AF_INET;
|
|
|
696
|
|
|
697 port = ngx_atoi(ctx->port.data, ctx->port.len);
|
|
|
698 if (port == NGX_ERROR || port < 1 || port > 65536) {
|
|
|
699 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
700 "auth http server %V sent invalid server "
|
|
|
701 "port:\"%V\"",
|
|
260
|
702 ctx->peer.name, &ctx->port);
|
|
96
|
703 ngx_destroy_pool(ctx->pool);
|
|
76
|
704 ngx_imap_session_internal_server_error(s);
|
|
|
705 return;
|
|
|
706 }
|
|
|
707
|
|
|
708 sin->sin_port = htons((in_port_t) port);
|
|
|
709
|
|
|
710 ctx->addr.data[ctx->addr.len] = '\0';
|
|
|
711 sin->sin_addr.s_addr = inet_addr((char *) ctx->addr.data);
|
|
|
712 if (sin->sin_addr.s_addr == INADDR_NONE) {
|
|
|
713 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
714 "auth http server %V sent invalid server "
|
|
|
715 "address:\"%V\"",
|
|
260
|
716 ctx->peer.name, &ctx->addr);
|
|
96
|
717 ngx_destroy_pool(ctx->pool);
|
|
76
|
718 ngx_imap_session_internal_server_error(s);
|
|
|
719 return;
|
|
|
720 }
|
|
|
721
|
|
260
|
722 peer->sockaddr = (struct sockaddr *) sin;
|
|
|
723 peer->socklen = sizeof(struct sockaddr_in);
|
|
76
|
724
|
|
|
725 len = ctx->addr.len + 1 + ctx->port.len;
|
|
|
726
|
|
260
|
727 peer->name.len = len;
|
|
76
|
728
|
|
260
|
729 peer->name.data = ngx_palloc(s->connection->pool, len);
|
|
|
730 if (peer->name.data == NULL) {
|
|
96
|
731 ngx_destroy_pool(ctx->pool);
|
|
76
|
732 ngx_imap_session_internal_server_error(s);
|
|
|
733 return;
|
|
|
734 }
|
|
|
735
|
|
|
736 len = ctx->addr.len;
|
|
|
737
|
|
260
|
738 ngx_memcpy(peer->name.data, ctx->addr.data, len);
|
|
76
|
739
|
|
260
|
740 peer->name.data[len++] = ':';
|
|
76
|
741
|
|
260
|
742 ngx_memcpy(peer->name.data + len, ctx->port.data, ctx->port.len);
|
|
76
|
743
|
|
96
|
744 ngx_destroy_pool(ctx->pool);
|
|
260
|
745 ngx_imap_proxy_init(s, peer);
|
|
76
|
746
|
|
|
747 return;
|
|
|
748 }
|
|
|
749
|
|
|
750 if (rc == NGX_AGAIN ) {
|
|
|
751 return;
|
|
|
752 }
|
|
|
753
|
|
|
754 /* rc == NGX_ERROR */
|
|
|
755
|
|
|
756 ngx_log_error(NGX_LOG_ERR, s->connection->log, 0,
|
|
90
|
757 "auth http server %V sent invalid header in response",
|
|
260
|
758 ctx->peer.name);
|
|
76
|
759 ngx_close_connection(ctx->peer.connection);
|
|
96
|
760 ngx_destroy_pool(ctx->pool);
|
|
76
|
761 ngx_imap_session_internal_server_error(s);
|
|
|
762
|
|
|
763 return;
|
|
|
764 }
|
|
|
765 }
|
|
|
766
|
|
|
767
|
|
|
768 static void
|
|
|
769 ngx_imap_auth_sleep_handler(ngx_event_t *rev)
|
|
|
770 {
|
|
92
|
771 ngx_connection_t *c;
|
|
|
772 ngx_imap_session_t *s;
|
|
|
773 ngx_imap_core_srv_conf_t *cscf;
|
|
76
|
774
|
|
|
775 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0, "imap auth sleep handler");
|
|
|
776
|
|
|
777 c = rev->data;
|
|
|
778 s = c->data;
|
|
|
779
|
|
|
780 if (rev->timedout) {
|
|
|
781
|
|
|
782 rev->timedout = 0;
|
|
|
783
|
|
260
|
784 if (s->auth_wait) {
|
|
|
785 s->auth_wait = 0;
|
|
|
786 ngx_imap_auth_http_init(s);
|
|
|
787 return;
|
|
|
788 }
|
|
|
789
|
|
76
|
790 if (s->protocol == NGX_IMAP_POP3_PROTOCOL) {
|
|
|
791 s->imap_state = ngx_pop3_start;
|
|
|
792 s->connection->read->handler = ngx_pop3_auth_state;
|
|
|
793
|
|
|
794 } else {
|
|
|
795 s->imap_state = ngx_imap_start;
|
|
|
796 s->connection->read->handler = ngx_imap_auth_state;
|
|
|
797 }
|
|
|
798
|
|
250
|
799 s->auth_method = NGX_IMAP_AUTH_PLAIN;
|
|
|
800
|
|
92
|
801 c->log->action = "in auth state";
|
|
|
802
|
|
|
803 ngx_imap_send(s->connection->write);
|
|
|
804
|
|
132
|
805 if (c->destroyed) {
|
|
92
|
806 return;
|
|
|
807 }
|
|
|
808
|
|
|
809 cscf = ngx_imap_get_module_srv_conf(s, ngx_imap_core_module);
|
|
|
810
|
|
|
811 ngx_add_timer(rev, cscf->timeout);
|
|
|
812
|
|
76
|
813 if (rev->ready) {
|
|
|
814 s->connection->read->handler(rev);
|
|
|
815 return;
|
|
|
816 }
|
|
|
817
|
|
|
818 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
819 ngx_imap_close_connection(s->connection);
|
|
|
820 }
|
|
|
821
|
|
|
822 return;
|
|
|
823 }
|
|
|
824
|
|
|
825 if (rev->active) {
|
|
|
826 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
827 ngx_imap_close_connection(s->connection);
|
|
|
828 }
|
|
|
829 }
|
|
|
830 }
|
|
|
831
|
|
|
832
|
|
|
833 static ngx_int_t
|
|
|
834 ngx_imap_auth_http_parse_header_line(ngx_imap_session_t *s,
|
|
|
835 ngx_imap_auth_http_ctx_t *ctx)
|
|
|
836 {
|
|
|
837 u_char c, ch, *p;
|
|
|
838 ngx_uint_t hash;
|
|
|
839 enum {
|
|
|
840 sw_start = 0,
|
|
|
841 sw_name,
|
|
|
842 sw_space_before_value,
|
|
|
843 sw_value,
|
|
|
844 sw_space_after_value,
|
|
126
|
845 sw_almost_done,
|
|
76
|
846 sw_header_almost_done
|
|
|
847 } state;
|
|
|
848
|
|
126
|
849 state = ctx->state;
|
|
76
|
850 hash = ctx->hash;
|
|
|
851
|
|
|
852 for (p = ctx->response->pos; p < ctx->response->last; p++) {
|
|
|
853 ch = *p;
|
|
|
854
|
|
|
855 switch (state) {
|
|
|
856
|
|
|
857 /* first char */
|
|
|
858 case sw_start:
|
|
|
859
|
|
|
860 switch (ch) {
|
|
|
861 case CR:
|
|
126
|
862 ctx->header_end = p;
|
|
76
|
863 state = sw_header_almost_done;
|
|
|
864 break;
|
|
126
|
865 case LF:
|
|
76
|
866 ctx->header_end = p;
|
|
|
867 goto header_done;
|
|
|
868 default:
|
|
|
869 state = sw_name;
|
|
|
870 ctx->header_name_start = p;
|
|
|
871
|
|
|
872 c = (u_char) (ch | 0x20);
|
|
|
873 if (c >= 'a' && c <= 'z') {
|
|
|
874 hash = c;
|
|
|
875 break;
|
|
|
876 }
|
|
|
877
|
|
|
878 if (ch >= '0' && ch <= '9') {
|
|
|
879 hash = ch;
|
|
|
880 break;
|
|
|
881 }
|
|
|
882
|
|
|
883 return NGX_ERROR;
|
|
|
884 }
|
|
|
885 break;
|
|
|
886
|
|
|
887 /* header name */
|
|
|
888 case sw_name:
|
|
|
889 c = (u_char) (ch | 0x20);
|
|
|
890 if (c >= 'a' && c <= 'z') {
|
|
|
891 hash += c;
|
|
|
892 break;
|
|
|
893 }
|
|
|
894
|
|
|
895 if (ch == ':') {
|
|
|
896 ctx->header_name_end = p;
|
|
|
897 state = sw_space_before_value;
|
|
|
898 break;
|
|
|
899 }
|
|
|
900
|
|
|
901 if (ch == '-') {
|
|
|
902 hash += ch;
|
|
|
903 break;
|
|
|
904 }
|
|
|
905
|
|
|
906 if (ch >= '0' && ch <= '9') {
|
|
|
907 hash += ch;
|
|
|
908 break;
|
|
|
909 }
|
|
|
910
|
|
|
911 if (ch == CR) {
|
|
|
912 ctx->header_name_end = p;
|
|
|
913 ctx->header_start = p;
|
|
|
914 ctx->header_end = p;
|
|
|
915 state = sw_almost_done;
|
|
|
916 break;
|
|
|
917 }
|
|
|
918
|
|
|
919 if (ch == LF) {
|
|
|
920 ctx->header_name_end = p;
|
|
|
921 ctx->header_start = p;
|
|
|
922 ctx->header_end = p;
|
|
|
923 goto done;
|
|
|
924 }
|
|
|
925
|
|
|
926 return NGX_ERROR;
|
|
|
927
|
|
|
928 /* space* before header value */
|
|
|
929 case sw_space_before_value:
|
|
|
930 switch (ch) {
|
|
|
931 case ' ':
|
|
|
932 break;
|
|
|
933 case CR:
|
|
|
934 ctx->header_start = p;
|
|
|
935 ctx->header_end = p;
|
|
|
936 state = sw_almost_done;
|
|
|
937 break;
|
|
|
938 case LF:
|
|
|
939 ctx->header_start = p;
|
|
|
940 ctx->header_end = p;
|
|
|
941 goto done;
|
|
|
942 default:
|
|
|
943 ctx->header_start = p;
|
|
|
944 state = sw_value;
|
|
|
945 break;
|
|
|
946 }
|
|
|
947 break;
|
|
|
948
|
|
|
949 /* header value */
|
|
|
950 case sw_value:
|
|
|
951 switch (ch) {
|
|
|
952 case ' ':
|
|
|
953 ctx->header_end = p;
|
|
|
954 state = sw_space_after_value;
|
|
|
955 break;
|
|
|
956 case CR:
|
|
|
957 ctx->header_end = p;
|
|
|
958 state = sw_almost_done;
|
|
|
959 break;
|
|
|
960 case LF:
|
|
|
961 ctx->header_end = p;
|
|
|
962 goto done;
|
|
|
963 }
|
|
|
964 break;
|
|
|
965
|
|
|
966 /* space* before end of header line */
|
|
|
967 case sw_space_after_value:
|
|
|
968 switch (ch) {
|
|
|
969 case ' ':
|
|
|
970 break;
|
|
|
971 case CR:
|
|
|
972 state = sw_almost_done;
|
|
|
973 break;
|
|
|
974 case LF:
|
|
|
975 goto done;
|
|
|
976 default:
|
|
|
977 state = sw_value;
|
|
|
978 break;
|
|
|
979 }
|
|
|
980 break;
|
|
|
981
|
|
|
982 /* end of header line */
|
|
|
983 case sw_almost_done:
|
|
|
984 switch (ch) {
|
|
|
985 case LF:
|
|
|
986 goto done;
|
|
|
987 default:
|
|
|
988 return NGX_ERROR;
|
|
|
989 }
|
|
|
990
|
|
|
991 /* end of header */
|
|
|
992 case sw_header_almost_done:
|
|
|
993 switch (ch) {
|
|
|
994 case LF:
|
|
|
995 goto header_done;
|
|
|
996 default:
|
|
|
997 return NGX_ERROR;
|
|
|
998 }
|
|
|
999 }
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 ctx->response->pos = p;
|
|
|
1003 ctx->state = state;
|
|
|
1004 ctx->hash = hash;
|
|
|
1005
|
|
|
1006 return NGX_AGAIN;
|
|
|
1007
|
|
|
1008 done:
|
|
|
1009
|
|
|
1010 ctx->response->pos = p + 1;
|
|
|
1011 ctx->state = sw_start;
|
|
|
1012 ctx->hash = hash;
|
|
|
1013
|
|
|
1014 return NGX_OK;
|
|
|
1015
|
|
|
1016 header_done:
|
|
|
1017
|
|
|
1018 ctx->response->pos = p + 1;
|
|
|
1019 ctx->state = sw_start;
|
|
|
1020
|
|
|
1021 return NGX_DONE;
|
|
|
1022 }
|
|
|
1023
|
|
|
1024
|
|
|
1025 static void
|
|
|
1026 ngx_imap_auth_http_block_read(ngx_event_t *rev)
|
|
|
1027 {
|
|
|
1028 ngx_connection_t *c;
|
|
|
1029 ngx_imap_session_t *s;
|
|
|
1030 ngx_imap_auth_http_ctx_t *ctx;
|
|
|
1031
|
|
|
1032 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, rev->log, 0,
|
|
|
1033 "imap auth http block read");
|
|
|
1034
|
|
|
1035 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
1036 c = rev->data;
|
|
|
1037 s = c->data;
|
|
|
1038
|
|
|
1039 ctx = ngx_imap_get_module_ctx(s, ngx_imap_auth_http_module);
|
|
|
1040
|
|
|
1041 ngx_close_connection(ctx->peer.connection);
|
|
96
|
1042 ngx_destroy_pool(ctx->pool);
|
|
76
|
1043 ngx_imap_session_internal_server_error(s);
|
|
|
1044 }
|
|
|
1045 }
|
|
|
1046
|
|
|
1047
|
|
|
1048 static void
|
|
|
1049 ngx_imap_auth_http_dummy_handler(ngx_event_t *ev)
|
|
|
1050 {
|
|
|
1051 ngx_log_debug0(NGX_LOG_DEBUG_IMAP, ev->log, 0,
|
|
|
1052 "imap auth http dummy handler");
|
|
|
1053 }
|
|
|
1054
|
|
|
1055
|
|
|
1056 static ngx_buf_t *
|
|
96
|
1057 ngx_imap_auth_http_create_request(ngx_imap_session_t *s, ngx_pool_t *pool,
|
|
76
|
1058 ngx_imap_auth_http_conf_t *ahcf)
|
|
|
1059 {
|
|
|
1060 size_t len;
|
|
|
1061 ngx_buf_t *b;
|
|
182
|
1062 ngx_str_t login, passwd;
|
|
|
1063
|
|
|
1064 if (ngx_imap_auth_http_escape(pool, &s->login, &login) != NGX_OK) {
|
|
|
1065 return NULL;
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 if (ngx_imap_auth_http_escape(pool, &s->passwd, &passwd) != NGX_OK) {
|
|
|
1069 return NULL;
|
|
|
1070 }
|
|
76
|
1071
|
|
|
1072 len = sizeof("GET ") - 1 + ahcf->uri.len + sizeof(" HTTP/1.0" CRLF) - 1
|
|
|
1073 + sizeof("Host: ") - 1 + ahcf->host_header.len + sizeof(CRLF) - 1
|
|
258
|
1074 + sizeof("Auth-Method: ") - 1
|
|
|
1075 + ngx_imap_auth_http_method[s->auth_method].len
|
|
|
1076 + sizeof(CRLF) - 1
|
|
182
|
1077 + sizeof("Auth-User: ") - 1 + login.len + sizeof(CRLF) - 1
|
|
|
1078 + sizeof("Auth-Pass: ") - 1 + passwd.len + sizeof(CRLF) - 1
|
|
250
|
1079 + sizeof("Auth-Salt: ") - 1 + s->salt.len
|
|
76
|
1080 + sizeof("Auth-Protocol: imap" CRLF) - 1
|
|
|
1081 + sizeof("Auth-Login-Attempt: ") - 1 + NGX_INT_T_LEN
|
|
|
1082 + sizeof(CRLF) - 1
|
|
|
1083 + sizeof("Client-IP: ") - 1 + s->connection->addr_text.len
|
|
|
1084 + sizeof(CRLF) - 1
|
|
|
1085 + sizeof(CRLF) - 1;
|
|
|
1086
|
|
96
|
1087 b = ngx_create_temp_buf(pool, len);
|
|
76
|
1088 if (b == NULL) {
|
|
|
1089 return NULL;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 b->last = ngx_cpymem(b->last, "GET ", sizeof("GET ") - 1);
|
|
122
|
1093 b->last = ngx_copy(b->last, ahcf->uri.data, ahcf->uri.len);
|
|
76
|
1094 b->last = ngx_cpymem(b->last, " HTTP/1.0" CRLF,
|
|
|
1095 sizeof(" HTTP/1.0" CRLF) - 1);
|
|
|
1096
|
|
|
1097 b->last = ngx_cpymem(b->last, "Host: ", sizeof("Host: ") - 1);
|
|
122
|
1098 b->last = ngx_copy(b->last, ahcf->host_header.data,
|
|
76
|
1099 ahcf->host_header.len);
|
|
|
1100 *b->last++ = CR; *b->last++ = LF;
|
|
|
1101
|
|
250
|
1102 b->last = ngx_cpymem(b->last, "Auth-Method: ",
|
|
|
1103 sizeof("Auth-Method: ") - 1);
|
|
|
1104 b->last = ngx_cpymem(b->last,
|
|
|
1105 ngx_imap_auth_http_method[s->auth_method].data,
|
|
|
1106 ngx_imap_auth_http_method[s->auth_method].len);
|
|
|
1107 *b->last++ = CR; *b->last++ = LF;
|
|
76
|
1108
|
|
|
1109 b->last = ngx_cpymem(b->last, "Auth-User: ", sizeof("Auth-User: ") - 1);
|
|
182
|
1110 b->last = ngx_copy(b->last, login.data, login.len);
|
|
76
|
1111 *b->last++ = CR; *b->last++ = LF;
|
|
|
1112
|
|
|
1113 b->last = ngx_cpymem(b->last, "Auth-Pass: ", sizeof("Auth-Pass: ") - 1);
|
|
182
|
1114 b->last = ngx_copy(b->last, passwd.data, passwd.len);
|
|
76
|
1115 *b->last++ = CR; *b->last++ = LF;
|
|
|
1116
|
|
252
|
1117 if (s->auth_method != NGX_IMAP_AUTH_PLAIN && s->salt.len) {
|
|
250
|
1118 b->last = ngx_cpymem(b->last, "Auth-Salt: ", sizeof("Auth-Salt: ") - 1);
|
|
|
1119 b->last = ngx_copy(b->last, s->salt.data, s->salt.len);
|
|
|
1120
|
|
|
1121 s->passwd.data = NULL;
|
|
|
1122 }
|
|
|
1123
|
|
76
|
1124 b->last = ngx_cpymem(b->last, "Auth-Protocol: ",
|
|
|
1125 sizeof("Auth-Protocol: ") - 1);
|
|
|
1126 b->last = ngx_cpymem(b->last, ngx_imap_auth_http_protocol[s->protocol],
|
|
|
1127 sizeof("imap") - 1);
|
|
|
1128 *b->last++ = CR; *b->last++ = LF;
|
|
|
1129
|
|
|
1130 b->last = ngx_sprintf(b->last, "Auth-Login-Attempt: %ui" CRLF,
|
|
|
1131 s->login_attempt);
|
|
|
1132
|
|
|
1133 b->last = ngx_cpymem(b->last, "Client-IP: ", sizeof("Client-IP: ") - 1);
|
|
122
|
1134 b->last = ngx_copy(b->last, s->connection->addr_text.data,
|
|
76
|
1135 s->connection->addr_text.len);
|
|
|
1136 *b->last++ = CR; *b->last++ = LF;
|
|
|
1137
|
|
122
|
1138 if (ahcf->header.len) {
|
|
|
1139 b->last = ngx_copy(b->last, ahcf->header.data, ahcf->header.len);
|
|
|
1140 }
|
|
|
1141
|
|
76
|
1142 /* add "\r\n" at the header end */
|
|
|
1143 *b->last++ = CR; *b->last++ = LF;
|
|
|
1144
|
|
96
|
1145 #if (NGX_DEBUG_IMAP_PASSWD)
|
|
76
|
1146 {
|
|
|
1147 ngx_str_t l;
|
|
|
1148
|
|
|
1149 l.len = b->last - b->pos;
|
|
|
1150 l.data = b->pos;
|
|
|
1151 ngx_log_debug1(NGX_LOG_DEBUG_IMAP, s->connection->log, 0,
|
|
|
1152 "imap auth http header:\n\"%V\"", &l);
|
|
|
1153 }
|
|
|
1154 #endif
|
|
|
1155
|
|
|
1156 return b;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159
|
|
182
|
1160 static ngx_int_t
|
|
|
1161 ngx_imap_auth_http_escape(ngx_pool_t *pool, ngx_str_t *text, ngx_str_t *escaped)
|
|
|
1162 {
|
|
|
1163 u_char ch, *p;
|
|
|
1164 ngx_uint_t i, n;
|
|
|
1165
|
|
|
1166 n = 0;
|
|
|
1167
|
|
|
1168 for (i = 0; i < text->len; i++) {
|
|
|
1169 ch = text->data[i];
|
|
|
1170
|
|
|
1171 if (ch == CR || ch == LF) {
|
|
|
1172 n++;
|
|
|
1173 }
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 if (n == 0) {
|
|
|
1177 *escaped = *text;
|
|
|
1178 return NGX_OK;
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 escaped->len = text->len + n * 2;
|
|
|
1182
|
|
|
1183 p = ngx_palloc(pool, escaped->len);
|
|
|
1184 if (p == NULL) {
|
|
|
1185 return NGX_ERROR;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 escaped->data = p;
|
|
|
1189
|
|
|
1190 for (i = 0; i < text->len; i++) {
|
|
|
1191 ch = text->data[i];
|
|
|
1192
|
|
|
1193 if (ch == CR) {
|
|
|
1194 *p++ = '%';
|
|
|
1195 *p++ = '0';
|
|
|
1196 *p++ = 'D';
|
|
|
1197 continue;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 if (ch == LF) {
|
|
|
1201 *p++ = '%';
|
|
|
1202 *p++ = '0';
|
|
|
1203 *p++ = 'A';
|
|
|
1204 continue;
|
|
|
1205 }
|
|
|
1206
|
|
|
1207 *p++ = ch;
|
|
|
1208 }
|
|
|
1209
|
|
|
1210 return NGX_OK;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213
|
|
76
|
1214 static void *
|
|
|
1215 ngx_imap_auth_http_create_conf(ngx_conf_t *cf)
|
|
126
|
1216 {
|
|
76
|
1217 ngx_imap_auth_http_conf_t *ahcf;
|
|
126
|
1218
|
|
76
|
1219 ahcf = ngx_pcalloc(cf->pool, sizeof(ngx_imap_auth_http_conf_t));
|
|
|
1220 if (ahcf == NULL) {
|
|
|
1221 return NGX_CONF_ERROR;
|
|
|
1222 }
|
|
|
1223
|
|
|
1224 ahcf->timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1225
|
|
|
1226 return ahcf;
|
|
|
1227 }
|
|
|
1228
|
|
|
1229
|
|
|
1230 static char *
|
|
|
1231 ngx_imap_auth_http_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1232 {
|
|
|
1233 ngx_imap_auth_http_conf_t *prev = parent;
|
|
|
1234 ngx_imap_auth_http_conf_t *conf = child;
|
|
|
1235
|
|
122
|
1236 u_char *p;
|
|
|
1237 size_t len;
|
|
|
1238 ngx_uint_t i;
|
|
|
1239 ngx_table_elt_t *header;
|
|
|
1240
|
|
260
|
1241 if (conf->peer == NULL) {
|
|
|
1242 conf->peer = prev->peer;
|
|
76
|
1243 conf->host_header = prev->host_header;
|
|
|
1244 conf->uri = prev->uri;
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 ngx_conf_merge_msec_value(conf->timeout, prev->timeout, 60000);
|
|
|
1248
|
|
122
|
1249 if (conf->headers == NULL) {
|
|
|
1250 conf->headers = prev->headers;
|
|
|
1251 conf->header = prev->header;
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 if (conf->headers && conf->header.len == 0) {
|
|
|
1255 len = 0;
|
|
|
1256 header = conf->headers->elts;
|
|
|
1257 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1258 len += header[i].key.len + 2 + header[i].value.len + 2;
|
|
|
1259 }
|
|
|
1260
|
|
|
1261 p = ngx_palloc(cf->pool, len);
|
|
|
1262 if (p == NULL) {
|
|
|
1263 return NGX_CONF_ERROR;
|
|
|
1264 }
|
|
|
1265
|
|
|
1266 conf->header.len = len;
|
|
|
1267 conf->header.data = p;
|
|
|
1268
|
|
|
1269 for (i = 0; i < conf->headers->nelts; i++) {
|
|
|
1270 p = ngx_cpymem(p, header[i].key.data, header[i].key.len);
|
|
|
1271 *p++ = ':'; *p++ = ' ';
|
|
|
1272 p = ngx_cpymem(p, header[i].value.data, header[i].value.len);
|
|
|
1273 *p++ = CR; *p++ = LF;
|
|
|
1274 }
|
|
|
1275 }
|
|
|
1276
|
|
76
|
1277 return NGX_CONF_OK;
|
|
|
1278 }
|
|
|
1279
|
|
|
1280
|
|
|
1281 static char *
|
|
|
1282 ngx_imap_auth_http(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
126
|
1283 {
|
|
76
|
1284 ngx_imap_auth_http_conf_t *ahcf = conf;
|
|
|
1285
|
|
252
|
1286 ngx_str_t *value;
|
|
|
1287 ngx_url_t u;
|
|
122
|
1288
|
|
76
|
1289 value = cf->args->elts;
|
|
|
1290
|
|
252
|
1291 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
76
|
1292
|
|
252
|
1293 u.url = value[1];
|
|
|
1294 u.default_portn = 80;
|
|
|
1295 u.uri_part = 1;
|
|
260
|
1296 u.one_addr = 1;
|
|
126
|
1297
|
|
252
|
1298 if (ngx_parse_url(cf, &u) != NGX_OK) {
|
|
|
1299 if (u.err) {
|
|
|
1300 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1301 "%s in auth_http \"%V\"", u.err, &u.url);
|
|
|
1302 }
|
|
|
1303 }
|
|
76
|
1304
|
|
260
|
1305 ahcf->peer = u.addrs;
|
|
76
|
1306
|
|
252
|
1307 ahcf->host_header = u.host_header;
|
|
|
1308 ahcf->uri = u.uri;
|
|
76
|
1309
|
|
108
|
1310 if (ahcf->uri.len == 0) {
|
|
104
|
1311 ahcf->uri.len = sizeof("/") - 1;
|
|
|
1312 ahcf->uri.data = (u_char *) "/";
|
|
|
1313 }
|
|
|
1314
|
|
76
|
1315 return NGX_CONF_OK;
|
|
|
1316 }
|
|
122
|
1317
|
|
|
1318
|
|
|
1319 static char *
|
|
|
1320 ngx_imap_auth_http_header(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
126
|
1321 {
|
|
122
|
1322 ngx_imap_auth_http_conf_t *ahcf = conf;
|
|
|
1323
|
|
|
1324 ngx_str_t *value;
|
|
|
1325 ngx_table_elt_t *header;
|
|
|
1326
|
|
|
1327 if (ahcf->headers == NULL) {
|
|
|
1328 ahcf->headers = ngx_array_create(cf->pool, 1, sizeof(ngx_table_elt_t));
|
|
|
1329 if (ahcf->headers == NULL) {
|
|
|
1330 return NGX_CONF_ERROR;
|
|
|
1331 }
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 header = ngx_array_push(ahcf->headers);
|
|
|
1335 if (header == NULL) {
|
|
|
1336 return NGX_CONF_ERROR;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 value = cf->args->elts;
|
|
|
1340
|
|
|
1341 header->key = value[1];
|
|
|
1342 header->value = value[2];
|
|
|
1343
|
|
|
1344 return NGX_CONF_OK;
|
|
|
1345 }
|
