48
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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_http.h>
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322
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10 #include <nginx.h>
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48
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11
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12
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122
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13 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r,
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14 ngx_http_variable_value_t *v, uintptr_t data);
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324
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15 static void ngx_http_variable_request_set(ngx_http_request_t *r,
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16 ngx_http_variable_value_t *v, uintptr_t data);
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186
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17 static void ngx_http_variable_request_set_size(ngx_http_request_t *r,
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18 ngx_http_variable_value_t *v, uintptr_t data);
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122
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19 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
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20 ngx_http_variable_value_t *v, uintptr_t data);
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21 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r,
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22 ngx_http_variable_value_t *v, uintptr_t data);
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126
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23
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24 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
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122
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25 ngx_http_variable_value_t *v, uintptr_t data);
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126
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26 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
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27 ngx_http_variable_value_t *v, uintptr_t data);
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433
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28 static ngx_int_t ngx_http_variable_cookie(ngx_http_request_t *r,
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29 ngx_http_variable_value_t *v, uintptr_t data);
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394
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30 static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r,
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31 ngx_http_variable_value_t *v, uintptr_t data);
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126
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32
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122
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33 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
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34 ngx_http_variable_value_t *v, uintptr_t data);
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272
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35 static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
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36 ngx_http_variable_value_t *v, uintptr_t data);
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122
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37 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r,
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38 ngx_http_variable_value_t *v, uintptr_t data);
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39 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r,
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40 ngx_http_variable_value_t *v, uintptr_t data);
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41 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r,
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42 ngx_http_variable_value_t *v, uintptr_t data);
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43 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r,
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44 ngx_http_variable_value_t *v, uintptr_t data);
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238
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45 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r,
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46 ngx_http_variable_value_t *v, uintptr_t data);
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324
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47 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r,
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48 ngx_http_variable_value_t *v, uintptr_t data);
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122
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49 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r,
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50 ngx_http_variable_value_t *v, uintptr_t data);
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420
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51 static ngx_int_t ngx_http_variable_realpath_root(ngx_http_request_t *r,
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52 ngx_http_variable_value_t *v, uintptr_t data);
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122
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53 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r,
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54 ngx_http_variable_value_t *v, uintptr_t data);
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362
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55 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r,
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56 ngx_http_variable_value_t *v, uintptr_t data);
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122
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57 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r,
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58 ngx_http_variable_value_t *v, uintptr_t data);
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59 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r,
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60 ngx_http_variable_value_t *v, uintptr_t data);
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160
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61 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
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62 ngx_http_variable_value_t *v, uintptr_t data);
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178
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63 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r,
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64 ngx_http_variable_value_t *v, uintptr_t data);
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244
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65 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r,
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66 ngx_http_variable_value_t *v, uintptr_t data);
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48
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67
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190
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68 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r,
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69 ngx_http_variable_value_t *v, uintptr_t data);
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70 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r,
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71 ngx_http_variable_value_t *v, uintptr_t data);
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451
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72 static ngx_int_t ngx_http_variable_sent_location(ngx_http_request_t *r,
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73 ngx_http_variable_value_t *v, uintptr_t data);
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190
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74 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
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75 ngx_http_variable_value_t *v, uintptr_t data);
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76 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r,
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77 ngx_http_variable_value_t *v, uintptr_t data);
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78 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
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79 ngx_http_variable_value_t *v, uintptr_t data);
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80 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
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81 ngx_http_variable_value_t *v, uintptr_t data);
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82
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322
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83 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r,
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84 ngx_http_variable_value_t *v, uintptr_t data);
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376
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85 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r,
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86 ngx_http_variable_value_t *v, uintptr_t data);
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416
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87 static ngx_int_t ngx_http_variable_pid(ngx_http_request_t *r,
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88 ngx_http_variable_value_t *v, uintptr_t data);
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48
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89
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58
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90 /*
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91 * TODO:
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92 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
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93 * REMOTE_HOST (null), REMOTE_IDENT (null),
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94 * SERVER_SOFTWARE
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95 *
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120
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96 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
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97 */
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48
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98
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190
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99 /*
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100 * the $http_host, $http_user_agent, $http_referer, $http_via,
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101 * and $http_x_forwarded_for variables may be handled by generic
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102 * ngx_http_variable_unknown_header_in(), but for perfomance reasons
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103 * they are handled using dedicated entries
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104 */
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105
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58
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106 static ngx_http_variable_t ngx_http_core_variables[] = {
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107
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186
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108 { ngx_string("http_host"), NULL, ngx_http_variable_header,
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82
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109 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
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48
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110
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186
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111 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header,
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82
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112 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
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58
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113
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186
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114 { ngx_string("http_referer"), NULL, ngx_http_variable_header,
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82
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115 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
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48
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116
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117 #if (NGX_HTTP_GZIP)
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186
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118 { ngx_string("http_via"), NULL, ngx_http_variable_header,
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82
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119 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
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48
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120 #endif
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121
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286
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122 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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186
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123 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header,
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82
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124 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
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48
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125 #endif
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126
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186
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127 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers,
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82
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128 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
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64
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129
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186
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130 { ngx_string("content_length"), NULL, ngx_http_variable_header,
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82
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131 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
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58
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132
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186
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133 { ngx_string("content_type"), NULL, ngx_http_variable_header,
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82
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134 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
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58
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135
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186
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136 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 },
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58
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137
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272
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138 { ngx_string("binary_remote_addr"), NULL,
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139 ngx_http_variable_binary_remote_addr, 0, 0, 0 },
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140
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186
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141 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 },
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48
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142
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186
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143 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 },
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58
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144
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186
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145 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 },
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58
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146
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186
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147 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 },
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58
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148
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186
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149 { ngx_string("server_protocol"), NULL, ngx_http_variable_request,
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82
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150 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
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58
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151
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238
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152 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 },
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153
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186
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154 { ngx_string("request_uri"), NULL, ngx_http_variable_request,
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82
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155 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
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48
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156
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186
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157 { ngx_string("uri"), NULL, ngx_http_variable_request,
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158 offsetof(ngx_http_request_t, uri),
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340
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159 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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186
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160
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161 { ngx_string("document_uri"), NULL, ngx_http_variable_request,
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122
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162 offsetof(ngx_http_request_t, uri),
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340
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163 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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122
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164
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186
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165 { ngx_string("request"), NULL, ngx_http_variable_request,
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118
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166 offsetof(ngx_http_request_t, request_line), 0, 0 },
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167
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186
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168 { ngx_string("document_root"), NULL,
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340
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169 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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170
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420
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171 { ngx_string("realpath_root"), NULL,
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172 ngx_http_variable_realpath_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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173
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186
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174 { ngx_string("query_string"), NULL, ngx_http_variable_request,
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58
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175 offsetof(ngx_http_request_t, args),
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340
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176 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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48
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177
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324
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178 { ngx_string("args"),
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179 ngx_http_variable_request_set,
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180 ngx_http_variable_request,
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138
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181 offsetof(ngx_http_request_t, args),
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340
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182 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
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324
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183
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184 { ngx_string("is_args"), NULL, ngx_http_variable_is_args,
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340
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185 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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138
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186
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186
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187 { ngx_string("request_filename"), NULL,
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188 ngx_http_variable_request_filename, 0,
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340
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189 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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190
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362
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191 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 },
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58
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192
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186
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193 { ngx_string("request_method"), NULL,
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194 ngx_http_variable_request_method, 0, 0, 0 },
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58
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195
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186
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196 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 },
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58
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197
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186
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198 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent,
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160
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199 0, 0, 0 },
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200
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186
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201 { ngx_string("request_completion"), NULL,
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202 ngx_http_variable_request_completion,
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178
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203 0, 0, 0 },
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204
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244
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205 { ngx_string("request_body_file"), NULL,
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206 ngx_http_variable_request_body_file,
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207 0, 0, 0 },
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208
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190
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209 { ngx_string("sent_http_content_type"), NULL,
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210 ngx_http_variable_sent_content_type, 0, 0, 0 },
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211
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212 { ngx_string("sent_http_content_length"), NULL,
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213 ngx_http_variable_sent_content_length, 0, 0, 0 },
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214
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451
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215 { ngx_string("sent_http_location"), NULL,
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216 ngx_http_variable_sent_location, 0, 0, 0 },
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217
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190
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218 { ngx_string("sent_http_last_modified"), NULL,
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219 ngx_http_variable_sent_last_modified, 0, 0, 0 },
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220
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221 { ngx_string("sent_http_connection"), NULL,
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222 ngx_http_variable_sent_connection, 0, 0, 0 },
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223
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224 { ngx_string("sent_http_keep_alive"), NULL,
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225 ngx_http_variable_sent_keep_alive, 0, 0, 0 },
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226
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227 { ngx_string("sent_http_transfer_encoding"), NULL,
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228 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 },
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229
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230 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers,
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231 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 },
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232
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186
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233 { ngx_string("limit_rate"), ngx_http_variable_request_set_size,
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234 ngx_http_variable_request,
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235 offsetof(ngx_http_request_t, limit_rate),
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340
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236 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
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186
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237
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322
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238 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version,
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239 0, 0, 0 },
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240
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376
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241 { ngx_string("hostname"), NULL, ngx_http_variable_hostname,
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242 0, 0, 0 },
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243
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416
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244 { ngx_string("pid"), NULL, ngx_http_variable_pid,
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245 0, 0, 0 },
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246
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186
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247 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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48
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248 };
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249
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250
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126
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251 ngx_http_variable_value_t ngx_http_variable_null_value =
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252 ngx_http_variable("");
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253 ngx_http_variable_value_t ngx_http_variable_true_value =
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254 ngx_http_variable("1");
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255
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256
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48
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257 ngx_http_variable_t *
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58
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258 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
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259 {
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160
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260 ngx_int_t rc;
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58
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261 ngx_uint_t i;
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160
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262 ngx_hash_key_t *key;
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58
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263 ngx_http_variable_t *v;
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264 ngx_http_core_main_conf_t *cmcf;
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265
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266 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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267
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160
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268 key = cmcf->variables_keys->keys.elts;
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269 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) {
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270 if (name->len != key[i].key.len
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271 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0)
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58
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272 {
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273 continue;
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274 }
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275
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160
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276 v = key[i].value;
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277
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340
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278 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) {
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58
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279 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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280 "the duplicate \"%V\" variable", name);
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281 return NULL;
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282 }
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283
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160
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284 return v;
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58
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285 }
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286
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160
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287 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t));
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58
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288 if (v == NULL) {
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289 return NULL;
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290 }
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291
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292 v->name.len = name->len;
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382
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293 v->name.data = ngx_pnalloc(cf->pool, name->len);
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58
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294 if (v->name.data == NULL) {
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295 return NULL;
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296 }
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297
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394
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298 ngx_strlow(v->name.data, name->data, name->len);
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58
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299
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186
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300 v->set_handler = NULL;
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301 v->get_handler = NULL;
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58
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302 v->data = 0;
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303 v->flags = flags;
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82
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304 v->index = 0;
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58
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305
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160
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306 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
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307
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308 if (rc == NGX_ERROR) {
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309 return NULL;
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310 }
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311
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312 if (rc == NGX_BUSY) {
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313 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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314 "conflicting variable name \"%V\"", name);
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315 return NULL;
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316 }
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317
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58
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318 return v;
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319 }
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320
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321
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322 ngx_int_t
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323 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
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48
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324 {
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50
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325 ngx_uint_t i;
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326 ngx_http_variable_t *v;
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48
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327 ngx_http_core_main_conf_t *cmcf;
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328
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329 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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330
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50
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331 v = cmcf->variables.elts;
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332
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333 if (v == NULL) {
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48
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334 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
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335 sizeof(ngx_http_variable_t)) == NGX_ERROR)
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336 {
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58
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337 return NGX_ERROR;
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48
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338 }
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50
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339
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340 } else {
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341 for (i = 0; i < cmcf->variables.nelts; i++) {
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342 if (name->len != v[i].name.len
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343 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
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344 {
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345 continue;
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346 }
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347
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58
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348 return i;
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50
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349 }
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48
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350 }
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351
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50
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352 v = ngx_array_push(&cmcf->variables);
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353 if (v == NULL) {
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58
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354 return NGX_ERROR;
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48
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355 }
|
|
356
|
50
|
357 v->name.len = name->len;
|
382
|
358 v->name.data = ngx_pnalloc(cf->pool, name->len);
|
50
|
359 if (v->name.data == NULL) {
|
58
|
360 return NGX_ERROR;
|
50
|
361 }
|
48
|
362
|
394
|
363 ngx_strlow(v->name.data, name->data, name->len);
|
50
|
364
|
186
|
365 v->set_handler = NULL;
|
|
366 v->get_handler = NULL;
|
50
|
367 v->data = 0;
|
58
|
368 v->flags = 0;
|
82
|
369 v->index = cmcf->variables.nelts - 1;
|
50
|
370
|
58
|
371 return cmcf->variables.nelts - 1;
|
48
|
372 }
|
|
373
|
|
374
|
|
375 ngx_http_variable_value_t *
|
|
376 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
377 {
|
50
|
378 ngx_http_variable_t *v;
|
48
|
379 ngx_http_core_main_conf_t *cmcf;
|
|
380
|
|
381 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
382
|
102
|
383 if (cmcf->variables.nelts <= index) {
|
48
|
384 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
385 "unknown variable index: %d", index);
|
|
386 return NULL;
|
|
387 }
|
|
388
|
122
|
389 if (r->variables[index].not_found || r->variables[index].valid) {
|
|
390 return &r->variables[index];
|
50
|
391 }
|
48
|
392
|
50
|
393 v = cmcf->variables.elts;
|
48
|
394
|
186
|
395 if (v[index].get_handler(r, &r->variables[index], v[index].data)
|
|
396 == NGX_OK)
|
|
397 {
|
340
|
398 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) {
|
|
399 r->variables[index].no_cacheable = 1;
|
48
|
400 }
|
122
|
401
|
|
402 return &r->variables[index];
|
48
|
403 }
|
|
404
|
206
|
405 r->variables[index].valid = 0;
|
|
406 r->variables[index].not_found = 1;
|
|
407
|
122
|
408 return NULL;
|
|
409 }
|
|
410
|
|
411
|
|
412 ngx_http_variable_value_t *
|
|
413 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
414 {
|
294
|
415 ngx_http_variable_value_t *v;
|
122
|
416
|
|
417 v = &r->variables[index];
|
|
418
|
|
419 if (v->valid) {
|
340
|
420 if (!v->no_cacheable) {
|
122
|
421 return v;
|
|
422 }
|
|
423
|
|
424 v->valid = 0;
|
|
425 v->not_found = 0;
|
58
|
426 }
|
50
|
427
|
122
|
428 return ngx_http_get_indexed_variable(r, index);
|
48
|
429 }
|
|
430
|
|
431
|
|
432 ngx_http_variable_value_t *
|
184
|
433 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key,
|
|
434 ngx_uint_t nowarn)
|
48
|
435 {
|
50
|
436 ngx_http_variable_t *v;
|
122
|
437 ngx_http_variable_value_t *vv;
|
48
|
438 ngx_http_core_main_conf_t *cmcf;
|
|
439
|
|
440 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
441
|
160
|
442 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len);
|
48
|
443
|
160
|
444 if (v) {
|
|
445 if (v->flags & NGX_HTTP_VAR_INDEXED) {
|
|
446 return ngx_http_get_indexed_variable(r, v->index);
|
68
|
447
|
|
448 } else {
|
48
|
449
|
122
|
450 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
50
|
451
|
186
|
452 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) {
|
122
|
453 return vv;
|
|
454 }
|
58
|
455
|
122
|
456 return NULL;
|
|
457 }
|
58
|
458 }
|
|
459
|
|
460 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
461 if (vv == NULL) {
|
|
462 return NULL;
|
|
463 }
|
|
464
|
122
|
465 if (ngx_strncmp(name->data, "http_", 5) == 0) {
|
48
|
466
|
126
|
467 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name)
|
|
468 == NGX_OK)
|
|
469 {
|
|
470 return vv;
|
|
471 }
|
|
472
|
|
473 return NULL;
|
|
474 }
|
|
475
|
|
476 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) {
|
|
477
|
|
478 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name)
|
|
479 == NGX_OK)
|
122
|
480 {
|
|
481 return vv;
|
|
482 }
|
48
|
483
|
|
484 return NULL;
|
|
485 }
|
|
486
|
296
|
487 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) {
|
|
488
|
|
489 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name)
|
|
490 == NGX_OK)
|
|
491 {
|
|
492 return vv;
|
|
493 }
|
|
494
|
|
495 return NULL;
|
|
496 }
|
|
497
|
429
|
498 if (ngx_strncmp(name->data, "cookie_", 7) == 0) {
|
|
499
|
433
|
500 if (ngx_http_variable_cookie(r, vv, (uintptr_t) name) == NGX_OK) {
|
429
|
501 return vv;
|
|
502 }
|
|
503
|
|
504 return NULL;
|
|
505 }
|
|
506
|
394
|
507 if (ngx_strncmp(name->data, "arg_", 4) == 0) {
|
|
508
|
|
509 if (ngx_http_variable_argument(r, vv, (uintptr_t) name) == NGX_OK) {
|
|
510 return vv;
|
|
511 }
|
|
512
|
|
513 return NULL;
|
|
514 }
|
|
515
|
184
|
516 vv->not_found = 1;
|
122
|
517
|
184
|
518 if (nowarn == 0) {
|
|
519 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
520 "unknown \"%V\" variable", name);
|
|
521 }
|
48
|
522
|
50
|
523 return vv;
|
48
|
524 }
|
|
525
|
|
526
|
122
|
527 static ngx_int_t
|
|
528 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
529 uintptr_t data)
|
|
530 {
|
|
531 ngx_str_t *s;
|
|
532
|
|
533 s = (ngx_str_t *) ((char *) r + data);
|
|
534
|
|
535 if (s->data) {
|
|
536 v->len = s->len;
|
|
537 v->valid = 1;
|
340
|
538 v->no_cacheable = 0;
|
122
|
539 v->not_found = 0;
|
|
540 v->data = s->data;
|
|
541
|
|
542 } else {
|
|
543 v->not_found = 1;
|
|
544 }
|
|
545
|
|
546 return NGX_OK;
|
|
547 }
|
|
548
|
|
549
|
186
|
550 static void
|
324
|
551 ngx_http_variable_request_set(ngx_http_request_t *r,
|
|
552 ngx_http_variable_value_t *v, uintptr_t data)
|
|
553 {
|
|
554 ngx_str_t *s;
|
|
555
|
|
556 s = (ngx_str_t *) ((char *) r + data);
|
|
557
|
|
558 s->len = v->len;
|
|
559 s->data = v->data;
|
|
560 }
|
|
561
|
|
562
|
|
563 static void
|
186
|
564 ngx_http_variable_request_set_size(ngx_http_request_t *r,
|
|
565 ngx_http_variable_value_t *v, uintptr_t data)
|
|
566 {
|
|
567 ssize_t s, *sp;
|
|
568 ngx_str_t val;
|
|
569
|
320
|
570 val.len = v->len;
|
186
|
571 val.data = v->data;
|
|
572
|
|
573 s = ngx_parse_size(&val);
|
|
574
|
|
575 if (s == NGX_ERROR) {
|
|
576 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
577 "invalid size \"%V\"", &val);
|
|
578 return;
|
|
579 }
|
|
580
|
|
581 sp = (ssize_t *) ((char *) r + data);
|
|
582
|
|
583 *sp = s;
|
|
584
|
|
585 return;
|
|
586 }
|
|
587
|
|
588
|
122
|
589 static ngx_int_t
|
|
590 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
591 uintptr_t data)
|
64
|
592 {
|
122
|
593 ngx_table_elt_t *h;
|
|
594
|
|
595 h = *(ngx_table_elt_t **) ((char *) r + data);
|
|
596
|
|
597 if (h) {
|
|
598 v->len = h->value.len;
|
|
599 v->valid = 1;
|
340
|
600 v->no_cacheable = 0;
|
122
|
601 v->not_found = 0;
|
|
602 v->data = h->value.data;
|
|
603
|
|
604 } else {
|
|
605 v->not_found = 1;
|
|
606 }
|
|
607
|
|
608 return NGX_OK;
|
|
609 }
|
|
610
|
|
611
|
|
612 static ngx_int_t
|
|
613 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
614 uintptr_t data)
|
|
615 {
|
216
|
616 ssize_t len;
|
122
|
617 u_char *p;
|
216
|
618 ngx_uint_t i, n;
|
122
|
619 ngx_array_t *a;
|
|
620 ngx_table_elt_t **h;
|
64
|
621
|
|
622 a = (ngx_array_t *) ((char *) r + data);
|
|
623
|
216
|
624 n = a->nelts;
|
|
625
|
|
626 if (n == 0) {
|
122
|
627 v->not_found = 1;
|
|
628 return NGX_OK;
|
64
|
629 }
|
|
630
|
122
|
631 v->valid = 1;
|
340
|
632 v->no_cacheable = 0;
|
122
|
633 v->not_found = 0;
|
64
|
634
|
|
635 h = a->elts;
|
|
636
|
216
|
637 if (n == 1) {
|
122
|
638 v->len = (*h)->value.len;
|
|
639 v->data = (*h)->value.data;
|
64
|
640
|
122
|
641 return NGX_OK;
|
64
|
642 }
|
|
643
|
216
|
644 len = - (ssize_t) (sizeof("; ") - 1);
|
122
|
645
|
216
|
646 for (i = 0; i < n; i++) {
|
122
|
647 len += h[i]->value.len + sizeof("; ") - 1;
|
64
|
648 }
|
|
649
|
382
|
650 p = ngx_pnalloc(r->pool, len);
|
122
|
651 if (p == NULL) {
|
|
652 return NGX_ERROR;
|
|
653 }
|
|
654
|
|
655 v->len = len;
|
|
656 v->data = p;
|
64
|
657
|
|
658 for (i = 0; /* void */ ; i++) {
|
122
|
659 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
64
|
660
|
216
|
661 if (i == n - 1) {
|
64
|
662 break;
|
|
663 }
|
|
664
|
|
665 *p++ = ';'; *p++ = ' ';
|
|
666 }
|
|
667
|
122
|
668 return NGX_OK;
|
64
|
669 }
|
|
670
|
|
671
|
122
|
672 static ngx_int_t
|
126
|
673 ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
674 ngx_http_variable_value_t *v, uintptr_t data)
|
|
675 {
|
|
676 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
677 &r->headers_in.headers.part,
|
|
678 sizeof("http_") - 1);
|
|
679 }
|
|
680
|
|
681
|
|
682 static ngx_int_t
|
|
683 ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
122
|
684 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
685 {
|
126
|
686 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
687 &r->headers_out.headers.part,
|
|
688 sizeof("sent_http_") - 1);
|
|
689 }
|
50
|
690
|
126
|
691
|
296
|
692 ngx_int_t
|
126
|
693 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var,
|
|
694 ngx_list_part_t *part, size_t prefix)
|
|
695 {
|
122
|
696 u_char ch;
|
|
697 ngx_uint_t i, n;
|
|
698 ngx_table_elt_t *header;
|
48
|
699
|
|
700 header = part->elts;
|
|
701
|
|
702 for (i = 0; /* void */ ; i++) {
|
|
703
|
|
704 if (i >= part->nelts) {
|
|
705 if (part->next == NULL) {
|
|
706 break;
|
|
707 }
|
|
708
|
|
709 part = part->next;
|
|
710 header = part->elts;
|
|
711 i = 0;
|
|
712 }
|
|
713
|
126
|
714 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) {
|
48
|
715 ch = header[i].key.data[n];
|
|
716
|
58
|
717 if (ch >= 'A' && ch <= 'Z') {
|
|
718 ch |= 0x20;
|
48
|
719
|
|
720 } else if (ch == '-') {
|
|
721 ch = '_';
|
|
722 }
|
|
723
|
126
|
724 if (var->data[n + prefix] != ch) {
|
48
|
725 break;
|
|
726 }
|
|
727 }
|
|
728
|
242
|
729 if (n + prefix == var->len && n == header[i].key.len) {
|
122
|
730 v->len = header[i].value.len;
|
|
731 v->valid = 1;
|
340
|
732 v->no_cacheable = 0;
|
122
|
733 v->not_found = 0;
|
|
734 v->data = header[i].value.data;
|
48
|
735
|
122
|
736 return NGX_OK;
|
48
|
737 }
|
|
738 }
|
|
739
|
122
|
740 v->not_found = 1;
|
|
741
|
|
742 return NGX_OK;
|
58
|
743 }
|
|
744
|
|
745
|
122
|
746 static ngx_int_t
|
429
|
747 ngx_http_variable_cookie(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
748 uintptr_t data)
|
|
749 {
|
|
750 ngx_str_t *name = (ngx_str_t *) data;
|
|
751
|
|
752 ngx_str_t cookie, s;
|
|
753
|
|
754 s.len = name->len - (sizeof("cookie_") - 1);
|
|
755 s.data = name->data + sizeof("cookie_") - 1;
|
|
756
|
|
757 if (ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &s, &cookie)
|
|
758 == NGX_DECLINED)
|
|
759 {
|
|
760 v->not_found = 1;
|
|
761 return NGX_OK;
|
|
762 }
|
|
763
|
|
764 v->len = cookie.len;
|
|
765 v->valid = 1;
|
|
766 v->no_cacheable = 0;
|
|
767 v->not_found = 0;
|
|
768 v->data = cookie.data;
|
|
769
|
|
770 return NGX_OK;
|
|
771 }
|
|
772
|
|
773
|
|
774 static ngx_int_t
|
394
|
775 ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
776 uintptr_t data)
|
|
777 {
|
|
778 ngx_str_t *name = (ngx_str_t *) data;
|
|
779
|
441
|
780 u_char *arg;
|
|
781 size_t len;
|
|
782 ngx_str_t value;
|
394
|
783
|
441
|
784 len = name->len - (sizeof("arg_") - 1);
|
|
785 arg = name->data + sizeof("arg_") - 1;
|
|
786
|
|
787 if (ngx_http_arg(r, arg, len, &value) != NGX_OK) {
|
394
|
788 v->not_found = 1;
|
|
789 return NGX_OK;
|
|
790 }
|
|
791
|
441
|
792 v->data = value.data;
|
|
793 v->len = value.len;
|
|
794 v->valid = 1;
|
|
795 v->no_cacheable = 0;
|
|
796 v->not_found = 0;
|
394
|
797
|
|
798 return NGX_OK;
|
|
799 }
|
|
800
|
|
801
|
|
802 static ngx_int_t
|
122
|
803 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
804 uintptr_t data)
|
58
|
805 {
|
362
|
806 ngx_http_core_srv_conf_t *cscf;
|
|
807
|
376
|
808 if (r->headers_in.server.len) {
|
|
809 v->len = r->headers_in.server.len;
|
|
810 v->data = r->headers_in.server.data;
|
270
|
811
|
|
812 } else {
|
376
|
813 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
814
|
|
815 v->len = cscf->server_name.len;
|
|
816 v->data = cscf->server_name.data;
|
58
|
817 }
|
|
818
|
122
|
819 v->valid = 1;
|
340
|
820 v->no_cacheable = 0;
|
122
|
821 v->not_found = 0;
|
58
|
822
|
122
|
823 return NGX_OK;
|
48
|
824 }
|
|
825
|
|
826
|
122
|
827 static ngx_int_t
|
272
|
828 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
|
|
829 ngx_http_variable_value_t *v, uintptr_t data)
|
|
830 {
|
|
831 struct sockaddr_in *sin;
|
|
832
|
|
833 /* AF_INET only */
|
|
834
|
|
835 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
836
|
|
837 v->len = sizeof(in_addr_t);
|
|
838 v->valid = 1;
|
340
|
839 v->no_cacheable = 0;
|
272
|
840 v->not_found = 0;
|
|
841 v->data = (u_char *) &sin->sin_addr.s_addr;
|
|
842
|
|
843 return NGX_OK;
|
|
844 }
|
|
845
|
|
846
|
|
847 static ngx_int_t
|
122
|
848 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
849 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
850 {
|
122
|
851 v->len = r->connection->addr_text.len;
|
|
852 v->valid = 1;
|
340
|
853 v->no_cacheable = 0;
|
122
|
854 v->not_found = 0;
|
|
855 v->data = r->connection->addr_text.data;
|
48
|
856
|
122
|
857 return NGX_OK;
|
48
|
858 }
|
|
859
|
|
860
|
122
|
861 static ngx_int_t
|
|
862 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
863 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
864 {
|
122
|
865 ngx_uint_t port;
|
|
866 struct sockaddr_in *sin;
|
58
|
867
|
122
|
868 v->len = 0;
|
|
869 v->valid = 1;
|
340
|
870 v->no_cacheable = 0;
|
122
|
871 v->not_found = 0;
|
58
|
872
|
382
|
873 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1);
|
122
|
874 if (v->data == NULL) {
|
|
875 return NGX_ERROR;
|
58
|
876 }
|
|
877
|
|
878 /* AF_INET only */
|
126
|
879
|
58
|
880 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
881 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
126
|
882
|
58
|
883 port = ntohs(sin->sin_port);
|
126
|
884
|
58
|
885 if (port > 0 && port < 65536) {
|
122
|
886 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
58
|
887 }
|
|
888 }
|
|
889
|
122
|
890 return NGX_OK;
|
58
|
891 }
|
|
892
|
|
893
|
122
|
894 static ngx_int_t
|
|
895 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
896 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
897 {
|
362
|
898 ngx_str_t s;
|
48
|
899
|
406
|
900 s.data = ngx_pnalloc(r->pool, NGX_INET_ADDRSTRLEN);
|
362
|
901 if (s.data == NULL) {
|
122
|
902 return NGX_ERROR;
|
58
|
903 }
|
|
904
|
362
|
905 if (ngx_http_server_addr(r, &s) != NGX_OK) {
|
|
906 return NGX_ERROR;
|
58
|
907 }
|
|
908
|
362
|
909 v->len = s.len;
|
122
|
910 v->valid = 1;
|
340
|
911 v->no_cacheable = 0;
|
122
|
912 v->not_found = 0;
|
362
|
913 v->data = s.data;
|
48
|
914
|
122
|
915 return NGX_OK;
|
48
|
916 }
|
|
917
|
|
918
|
122
|
919 static ngx_int_t
|
|
920 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
921 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
922 {
|
122
|
923 v->len = r->port_text->len - 1;
|
|
924 v->valid = 1;
|
340
|
925 v->no_cacheable = 0;
|
122
|
926 v->not_found = 0;
|
|
927 v->data = r->port_text->data + 1;
|
58
|
928
|
122
|
929 return NGX_OK;
|
58
|
930 }
|
|
931
|
|
932
|
122
|
933 static ngx_int_t
|
238
|
934 ngx_http_variable_scheme(ngx_http_request_t *r,
|
|
935 ngx_http_variable_value_t *v, uintptr_t data)
|
|
936 {
|
|
937 #if (NGX_HTTP_SSL)
|
|
938
|
|
939 if (r->connection->ssl) {
|
|
940 v->len = sizeof("https") - 1;
|
|
941 v->valid = 1;
|
340
|
942 v->no_cacheable = 0;
|
238
|
943 v->not_found = 0;
|
|
944 v->data = (u_char *) "https";
|
|
945
|
|
946 return NGX_OK;
|
|
947 }
|
|
948
|
|
949 #endif
|
|
950
|
|
951 v->len = sizeof("http") - 1;
|
|
952 v->valid = 1;
|
340
|
953 v->no_cacheable = 0;
|
238
|
954 v->not_found = 0;
|
|
955 v->data = (u_char *) "http";
|
|
956
|
|
957 return NGX_OK;
|
|
958 }
|
|
959
|
|
960
|
|
961 static ngx_int_t
|
324
|
962 ngx_http_variable_is_args(ngx_http_request_t *r,
|
|
963 ngx_http_variable_value_t *v, uintptr_t data)
|
|
964 {
|
|
965 v->valid = 1;
|
340
|
966 v->no_cacheable = 0;
|
324
|
967 v->not_found = 0;
|
|
968
|
|
969 if (r->args.len == 0) {
|
|
970 v->len = 0;
|
|
971 v->data = NULL;
|
|
972 return NGX_OK;
|
|
973 }
|
|
974
|
|
975 v->len = 1;
|
|
976 v->data = (u_char *) "?";
|
|
977
|
|
978 return NGX_OK;
|
|
979 }
|
|
980
|
|
981
|
|
982 static ngx_int_t
|
122
|
983 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
984 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
985 {
|
220
|
986 ngx_str_t path;
|
122
|
987 ngx_http_core_loc_conf_t *clcf;
|
58
|
988
|
|
989 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
990
|
220
|
991 if (clcf->root_lengths == NULL) {
|
|
992 v->len = clcf->root.len;
|
|
993 v->valid = 1;
|
340
|
994 v->no_cacheable = 0;
|
220
|
995 v->not_found = 0;
|
|
996 v->data = clcf->root.data;
|
|
997
|
|
998 } else {
|
|
999 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0,
|
|
1000 clcf->root_values->elts)
|
|
1001 == NULL)
|
|
1002 {
|
|
1003 return NGX_ERROR;
|
|
1004 }
|
|
1005
|
324
|
1006 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
|
|
1007 == NGX_ERROR)
|
|
1008 {
|
220
|
1009 return NGX_ERROR;
|
|
1010 }
|
|
1011
|
|
1012 v->len = path.len;
|
|
1013 v->valid = 1;
|
340
|
1014 v->no_cacheable = 0;
|
220
|
1015 v->not_found = 0;
|
|
1016 v->data = path.data;
|
|
1017 }
|
58
|
1018
|
122
|
1019 return NGX_OK;
|
58
|
1020 }
|
|
1021
|
|
1022
|
122
|
1023 static ngx_int_t
|
420
|
1024 ngx_http_variable_realpath_root(ngx_http_request_t *r,
|
|
1025 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1026 {
|
|
1027 size_t len;
|
|
1028 ngx_str_t path;
|
|
1029 ngx_http_core_loc_conf_t *clcf;
|
|
1030 u_char real[NGX_MAX_PATH];
|
|
1031
|
|
1032 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1033
|
|
1034 if (clcf->root_lengths == NULL) {
|
|
1035 path = clcf->root;
|
|
1036
|
|
1037 } else {
|
|
1038 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 1,
|
|
1039 clcf->root_values->elts)
|
|
1040 == NULL)
|
|
1041 {
|
|
1042 return NGX_ERROR;
|
|
1043 }
|
|
1044
|
|
1045 path.data[path.len - 1] = '\0';
|
|
1046
|
|
1047 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
|
|
1048 == NGX_ERROR)
|
|
1049 {
|
|
1050 return NGX_ERROR;
|
|
1051 }
|
|
1052 }
|
|
1053
|
|
1054 if (ngx_realpath(path.data, real) == NULL) {
|
|
1055 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
1056 ngx_realpath_n " \"%s\" failed", path.data);
|
|
1057 return NGX_ERROR;
|
|
1058 }
|
|
1059
|
|
1060 len = ngx_strlen(real);
|
|
1061
|
|
1062 v->data = ngx_pnalloc(r->pool, len);
|
|
1063 if (v->data == NULL) {
|
|
1064 return NGX_ERROR;
|
|
1065 }
|
|
1066
|
|
1067 v->len = len;
|
|
1068 v->valid = 1;
|
|
1069 v->no_cacheable = 0;
|
|
1070 v->not_found = 0;
|
|
1071
|
|
1072 ngx_memcpy(v->data, real, len);
|
|
1073
|
|
1074 return NGX_OK;
|
|
1075 }
|
|
1076
|
|
1077
|
|
1078 static ngx_int_t
|
122
|
1079 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
1080 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
1081 {
|
248
|
1082 size_t root;
|
122
|
1083 ngx_str_t path;
|
48
|
1084
|
248
|
1085 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
|
122
|
1086 return NGX_ERROR;
|
106
|
1087 }
|
58
|
1088
|
106
|
1089 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
58
|
1090
|
122
|
1091 v->len = path.len - 1;
|
|
1092 v->valid = 1;
|
340
|
1093 v->no_cacheable = 0;
|
122
|
1094 v->not_found = 0;
|
|
1095 v->data = path.data;
|
48
|
1096
|
122
|
1097 return NGX_OK;
|
48
|
1098 }
|
|
1099
|
|
1100
|
122
|
1101 static ngx_int_t
|
362
|
1102 ngx_http_variable_server_name(ngx_http_request_t *r,
|
|
1103 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1104 {
|
|
1105 ngx_http_core_srv_conf_t *cscf;
|
|
1106
|
|
1107 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
1108
|
|
1109 v->len = cscf->server_name.len;
|
|
1110 v->valid = 1;
|
|
1111 v->no_cacheable = 0;
|
|
1112 v->not_found = 0;
|
|
1113 v->data = cscf->server_name.data;
|
|
1114
|
|
1115 return NGX_OK;
|
|
1116 }
|
|
1117
|
|
1118
|
|
1119 static ngx_int_t
|
122
|
1120 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
1121 ngx_http_variable_value_t *v, uintptr_t data)
|
110
|
1122 {
|
196
|
1123 if (r->main->method_name.data) {
|
|
1124 v->len = r->main->method_name.len;
|
122
|
1125 v->valid = 1;
|
340
|
1126 v->no_cacheable = 0;
|
122
|
1127 v->not_found = 0;
|
196
|
1128 v->data = r->main->method_name.data;
|
122
|
1129
|
|
1130 } else {
|
|
1131 v->not_found = 1;
|
110
|
1132 }
|
|
1133
|
122
|
1134 return NGX_OK;
|
110
|
1135 }
|
|
1136
|
|
1137
|
122
|
1138 static ngx_int_t
|
|
1139 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
1140 ngx_http_variable_value_t *v, uintptr_t data)
|
88
|
1141 {
|
122
|
1142 ngx_int_t rc;
|
88
|
1143
|
|
1144 rc = ngx_http_auth_basic_user(r);
|
|
1145
|
|
1146 if (rc == NGX_DECLINED) {
|
122
|
1147 v->not_found = 1;
|
|
1148 return NGX_OK;
|
88
|
1149 }
|
|
1150
|
|
1151 if (rc == NGX_ERROR) {
|
122
|
1152 return NGX_ERROR;
|
88
|
1153 }
|
|
1154
|
122
|
1155 v->len = r->headers_in.user.len;
|
|
1156 v->valid = 1;
|
340
|
1157 v->no_cacheable = 0;
|
122
|
1158 v->not_found = 0;
|
|
1159 v->data = r->headers_in.user.data;
|
120
|
1160
|
122
|
1161 return NGX_OK;
|
120
|
1162 }
|
|
1163
|
|
1164
|
160
|
1165 static ngx_int_t
|
|
1166 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
|
|
1167 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1168 {
|
|
1169 off_t sent;
|
|
1170 u_char *p;
|
|
1171
|
|
1172 sent = r->connection->sent - r->header_size;
|
|
1173
|
|
1174 if (sent < 0) {
|
|
1175 sent = 0;
|
|
1176 }
|
|
1177
|
382
|
1178 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
160
|
1179 if (p == NULL) {
|
|
1180 return NGX_ERROR;
|
|
1181 }
|
|
1182
|
|
1183 v->len = ngx_sprintf(p, "%O", sent) - p;
|
|
1184 v->valid = 1;
|
340
|
1185 v->no_cacheable = 0;
|
160
|
1186 v->not_found = 0;
|
|
1187 v->data = p;
|
|
1188
|
|
1189 return NGX_OK;
|
|
1190 }
|
|
1191
|
|
1192
|
178
|
1193 static ngx_int_t
|
190
|
1194 ngx_http_variable_sent_content_type(ngx_http_request_t *r,
|
|
1195 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1196 {
|
|
1197 if (r->headers_out.content_type.len) {
|
|
1198 v->len = r->headers_out.content_type.len;
|
|
1199 v->valid = 1;
|
340
|
1200 v->no_cacheable = 0;
|
190
|
1201 v->not_found = 0;
|
|
1202 v->data = r->headers_out.content_type.data;
|
|
1203
|
|
1204 } else {
|
|
1205 v->not_found = 1;
|
|
1206 }
|
|
1207
|
|
1208 return NGX_OK;
|
|
1209 }
|
|
1210
|
|
1211
|
|
1212 static ngx_int_t
|
|
1213 ngx_http_variable_sent_content_length(ngx_http_request_t *r,
|
|
1214 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1215 {
|
|
1216 u_char *p;
|
|
1217
|
|
1218 if (r->headers_out.content_length) {
|
|
1219 v->len = r->headers_out.content_length->value.len;
|
|
1220 v->valid = 1;
|
340
|
1221 v->no_cacheable = 0;
|
190
|
1222 v->not_found = 0;
|
|
1223 v->data = r->headers_out.content_length->value.data;
|
|
1224
|
|
1225 return NGX_OK;
|
|
1226 }
|
|
1227
|
|
1228 if (r->headers_out.content_length_n >= 0) {
|
382
|
1229 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
190
|
1230 if (p == NULL) {
|
|
1231 return NGX_ERROR;
|
|
1232 }
|
|
1233
|
|
1234 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p;
|
|
1235 v->valid = 1;
|
340
|
1236 v->no_cacheable = 0;
|
190
|
1237 v->not_found = 0;
|
|
1238 v->data = p;
|
|
1239
|
|
1240 return NGX_OK;
|
|
1241 }
|
|
1242
|
|
1243 v->not_found = 1;
|
|
1244
|
|
1245 return NGX_OK;
|
|
1246 }
|
|
1247
|
|
1248
|
|
1249 static ngx_int_t
|
451
|
1250 ngx_http_variable_sent_location(ngx_http_request_t *r,
|
|
1251 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1252 {
|
|
1253 if (r->headers_out.location) {
|
|
1254 v->len = r->headers_out.location->value.len;
|
|
1255 v->valid = 1;
|
|
1256 v->no_cacheable = 0;
|
|
1257 v->not_found = 0;
|
|
1258 v->data = r->headers_out.location->value.data;
|
|
1259
|
|
1260 return NGX_OK;
|
|
1261 }
|
|
1262
|
|
1263 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
1264 &r->headers_out.headers.part,
|
|
1265 sizeof("sent_http_") - 1);
|
|
1266 }
|
|
1267
|
|
1268
|
|
1269 static ngx_int_t
|
190
|
1270 ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
|
|
1271 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1272 {
|
|
1273 u_char *p;
|
|
1274
|
|
1275 if (r->headers_out.last_modified) {
|
|
1276 v->len = r->headers_out.last_modified->value.len;
|
|
1277 v->valid = 1;
|
340
|
1278 v->no_cacheable = 0;
|
190
|
1279 v->not_found = 0;
|
|
1280 v->data = r->headers_out.last_modified->value.data;
|
|
1281
|
|
1282 return NGX_OK;
|
|
1283 }
|
|
1284
|
|
1285 if (r->headers_out.last_modified_time >= 0) {
|
382
|
1286 p = ngx_pnalloc(r->pool,
|
190
|
1287 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1);
|
|
1288 if (p == NULL) {
|
|
1289 return NGX_ERROR;
|
|
1290 }
|
|
1291
|
|
1292 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p;
|
|
1293 v->valid = 1;
|
340
|
1294 v->no_cacheable = 0;
|
190
|
1295 v->not_found = 0;
|
|
1296 v->data = p;
|
|
1297
|
|
1298 return NGX_OK;
|
|
1299 }
|
|
1300
|
|
1301 v->not_found = 1;
|
|
1302
|
|
1303 return NGX_OK;
|
|
1304 }
|
|
1305
|
|
1306
|
|
1307 static ngx_int_t
|
|
1308 ngx_http_variable_sent_connection(ngx_http_request_t *r,
|
|
1309 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1310 {
|
|
1311 size_t len;
|
|
1312 char *p;
|
|
1313
|
|
1314 if (r->keepalive) {
|
|
1315 len = sizeof("keep-alive") - 1;
|
|
1316 p = "keep-alive";
|
|
1317
|
|
1318 } else {
|
|
1319 len = sizeof("close") - 1;
|
|
1320 p = "close";
|
|
1321 }
|
|
1322
|
|
1323 v->len = len;
|
|
1324 v->valid = 1;
|
340
|
1325 v->no_cacheable = 0;
|
190
|
1326 v->not_found = 0;
|
|
1327 v->data = (u_char *) p;
|
|
1328
|
|
1329 return NGX_OK;
|
|
1330 }
|
|
1331
|
|
1332
|
|
1333 static ngx_int_t
|
|
1334 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
|
|
1335 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1336 {
|
|
1337 u_char *p;
|
|
1338 ngx_http_core_loc_conf_t *clcf;
|
|
1339
|
|
1340 if (r->keepalive) {
|
|
1341 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1342
|
|
1343 if (clcf->keepalive_header) {
|
|
1344
|
382
|
1345 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN);
|
190
|
1346 if (p == NULL) {
|
|
1347 return NGX_ERROR;
|
|
1348 }
|
|
1349
|
|
1350 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p;
|
|
1351 v->valid = 1;
|
340
|
1352 v->no_cacheable = 0;
|
190
|
1353 v->not_found = 0;
|
|
1354 v->data = p;
|
|
1355
|
|
1356 return NGX_OK;
|
|
1357 }
|
|
1358 }
|
|
1359
|
|
1360 v->not_found = 1;
|
|
1361
|
|
1362 return NGX_OK;
|
|
1363 }
|
|
1364
|
|
1365
|
|
1366 static ngx_int_t
|
|
1367 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
|
|
1368 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1369 {
|
|
1370 if (r->chunked) {
|
|
1371 v->len = sizeof("chunked") - 1;
|
|
1372 v->valid = 1;
|
340
|
1373 v->no_cacheable = 0;
|
190
|
1374 v->not_found = 0;
|
|
1375 v->data = (u_char *) "chunked";
|
|
1376
|
|
1377 } else {
|
|
1378 v->not_found = 1;
|
|
1379 }
|
|
1380
|
|
1381 return NGX_OK;
|
|
1382 }
|
|
1383
|
|
1384
|
|
1385 static ngx_int_t
|
178
|
1386 ngx_http_variable_request_completion(ngx_http_request_t *r,
|
|
1387 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1388 {
|
|
1389 if (r->request_complete) {
|
|
1390 v->len = 2;
|
|
1391 v->valid = 1;
|
340
|
1392 v->no_cacheable = 0;
|
178
|
1393 v->not_found = 0;
|
|
1394 v->data = (u_char *) "OK";
|
|
1395
|
|
1396 return NGX_OK;
|
|
1397 }
|
|
1398
|
|
1399 v->len = 0;
|
|
1400 v->valid = 1;
|
340
|
1401 v->no_cacheable = 0;
|
178
|
1402 v->not_found = 0;
|
|
1403 v->data = (u_char *) "";
|
|
1404
|
|
1405 return NGX_OK;
|
|
1406 }
|
|
1407
|
|
1408
|
244
|
1409 static ngx_int_t
|
|
1410 ngx_http_variable_request_body_file(ngx_http_request_t *r,
|
|
1411 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1412 {
|
|
1413 if (r->request_body == NULL || r->request_body->temp_file == NULL) {
|
246
|
1414 v->not_found = 1;
|
244
|
1415
|
|
1416 return NGX_OK;
|
|
1417 }
|
|
1418
|
|
1419 v->len = r->request_body->temp_file->file.name.len;
|
|
1420 v->valid = 1;
|
340
|
1421 v->no_cacheable = 0;
|
244
|
1422 v->not_found = 0;
|
|
1423 v->data = r->request_body->temp_file->file.name.data;
|
|
1424
|
|
1425 return NGX_OK;
|
|
1426 }
|
|
1427
|
|
1428
|
322
|
1429 static ngx_int_t
|
|
1430 ngx_http_variable_nginx_version(ngx_http_request_t *r,
|
|
1431 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1432 {
|
|
1433 v->len = sizeof(NGINX_VERSION) - 1;
|
|
1434 v->valid = 1;
|
340
|
1435 v->no_cacheable = 0;
|
322
|
1436 v->not_found = 0;
|
|
1437 v->data = (u_char *) NGINX_VERSION;
|
|
1438
|
|
1439 return NGX_OK;
|
|
1440 }
|
|
1441
|
|
1442
|
376
|
1443 static ngx_int_t
|
|
1444 ngx_http_variable_hostname(ngx_http_request_t *r,
|
|
1445 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1446 {
|
|
1447 v->len = ngx_cycle->hostname.len;
|
|
1448 v->valid = 1;
|
|
1449 v->no_cacheable = 0;
|
|
1450 v->not_found = 0;
|
|
1451 v->data = ngx_cycle->hostname.data;
|
|
1452
|
|
1453 return NGX_OK;
|
|
1454 }
|
|
1455
|
|
1456
|
416
|
1457 static ngx_int_t
|
|
1458 ngx_http_variable_pid(ngx_http_request_t *r,
|
|
1459 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1460 {
|
|
1461 u_char *p;
|
|
1462
|
|
1463 p = ngx_pnalloc(r->pool, NGX_INT64_LEN);
|
|
1464 if (p == NULL) {
|
|
1465 return NGX_ERROR;
|
|
1466 }
|
|
1467
|
|
1468 v->len = ngx_sprintf(p, "%P", ngx_pid) - p;
|
|
1469 v->valid = 1;
|
|
1470 v->no_cacheable = 0;
|
|
1471 v->not_found = 0;
|
|
1472 v->data = p;
|
|
1473
|
|
1474 return NGX_OK;
|
|
1475 }
|
|
1476
|
|
1477
|
48
|
1478 ngx_int_t
|
58
|
1479 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
48
|
1480 {
|
160
|
1481 ngx_int_t rc;
|
|
1482 ngx_http_variable_t *v;
|
50
|
1483 ngx_http_core_main_conf_t *cmcf;
|
48
|
1484
|
58
|
1485 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
1486
|
160
|
1487 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool,
|
|
1488 sizeof(ngx_hash_keys_arrays_t));
|
|
1489 if (cmcf->variables_keys == NULL) {
|
|
1490 return NGX_ERROR;
|
|
1491 }
|
|
1492
|
|
1493 cmcf->variables_keys->pool = cf->pool;
|
|
1494 cmcf->variables_keys->temp_pool = cf->pool;
|
|
1495
|
|
1496 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL)
|
|
1497 != NGX_OK)
|
58
|
1498 {
|
48
|
1499 return NGX_ERROR;
|
|
1500 }
|
|
1501
|
160
|
1502 for (v = ngx_http_core_variables; v->name.len; v++) {
|
|
1503 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v,
|
|
1504 NGX_HASH_READONLY_KEY);
|
|
1505
|
|
1506 if (rc == NGX_OK) {
|
|
1507 continue;
|
48
|
1508 }
|
|
1509
|
160
|
1510 if (rc == NGX_BUSY) {
|
|
1511 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1512 "conflicting variable name \"%V\"", &v->name);
|
|
1513 }
|
|
1514
|
|
1515 return NGX_ERROR;
|
48
|
1516 }
|
|
1517
|
|
1518 return NGX_OK;
|
|
1519 }
|
58
|
1520
|
|
1521
|
|
1522 ngx_int_t
|
|
1523 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
1524 {
|
|
1525 ngx_uint_t i, n;
|
160
|
1526 ngx_hash_key_t *key;
|
|
1527 ngx_hash_init_t hash;
|
58
|
1528 ngx_http_variable_t *v, *av;
|
|
1529 ngx_http_core_main_conf_t *cmcf;
|
|
1530
|
|
1531 /* set the handlers for the indexed http variables */
|
|
1532
|
|
1533 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
1534
|
|
1535 v = cmcf->variables.elts;
|
160
|
1536 key = cmcf->variables_keys->keys.elts;
|
58
|
1537
|
|
1538 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
1539
|
160
|
1540 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
58
|
1541
|
300
|
1542 av = key[n].value;
|
|
1543
|
|
1544 if (av->get_handler
|
|
1545 && v[i].name.len == key[n].key.len
|
160
|
1546 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len)
|
58
|
1547 == 0)
|
|
1548 {
|
186
|
1549 v[i].get_handler = av->get_handler;
|
160
|
1550 v[i].data = av->data;
|
76
|
1551
|
160
|
1552 av->flags |= NGX_HTTP_VAR_INDEXED;
|
|
1553 v[i].flags = av->flags;
|
58
|
1554
|
160
|
1555 av->index = i;
|
82
|
1556
|
58
|
1557 goto next;
|
|
1558 }
|
|
1559 }
|
|
1560
|
|
1561 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
186
|
1562 v[i].get_handler = ngx_http_variable_unknown_header_in;
|
126
|
1563 v[i].data = (uintptr_t) &v[i].name;
|
|
1564
|
|
1565 continue;
|
|
1566 }
|
|
1567
|
|
1568 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) {
|
186
|
1569 v[i].get_handler = ngx_http_variable_unknown_header_out;
|
58
|
1570 v[i].data = (uintptr_t) &v[i].name;
|
|
1571
|
|
1572 continue;
|
|
1573 }
|
|
1574
|
296
|
1575 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) {
|
|
1576 v[i].get_handler = ngx_http_upstream_header_variable;
|
|
1577 v[i].data = (uintptr_t) &v[i].name;
|
340
|
1578 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE;
|
296
|
1579
|
|
1580 continue;
|
|
1581 }
|
|
1582
|
429
|
1583 if (ngx_strncmp(v[i].name.data, "cookie_", 7) == 0) {
|
|
1584 v[i].get_handler = ngx_http_variable_cookie;
|
|
1585 v[i].data = (uintptr_t) &v[i].name;
|
|
1586
|
|
1587 continue;
|
|
1588 }
|
|
1589
|
394
|
1590 if (ngx_strncmp(v[i].name.data, "arg_", 4) == 0) {
|
|
1591 v[i].get_handler = ngx_http_variable_argument;
|
|
1592 v[i].data = (uintptr_t) &v[i].name;
|
|
1593
|
|
1594 continue;
|
|
1595 }
|
|
1596
|
58
|
1597 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
1598 "unknown \"%V\" variable", &v[i].name);
|
|
1599
|
|
1600 return NGX_ERROR;
|
|
1601
|
|
1602 next:
|
|
1603 continue;
|
|
1604 }
|
|
1605
|
|
1606
|
160
|
1607 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
1608 av = key[n].value;
|
|
1609
|
|
1610 if (av->flags & NGX_HTTP_VAR_NOHASH) {
|
|
1611 key[n].key.data = NULL;
|
132
|
1612 }
|
|
1613 }
|
|
1614
|
|
1615
|
160
|
1616 hash.hash = &cmcf->variables_hash;
|
|
1617 hash.key = ngx_hash_key;
|
|
1618 hash.max_size = cmcf->variables_hash_max_size;
|
|
1619 hash.bucket_size = cmcf->variables_hash_bucket_size;
|
|
1620 hash.name = "variables_hash";
|
|
1621 hash.pool = cf->pool;
|
|
1622 hash.temp_pool = NULL;
|
58
|
1623
|
160
|
1624 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts,
|
|
1625 cmcf->variables_keys->keys.nelts)
|
130
|
1626 != NGX_OK)
|
58
|
1627 {
|
|
1628 return NGX_ERROR;
|
|
1629 }
|
|
1630
|
160
|
1631 cmcf->variables_keys = NULL;
|
58
|
1632
|
|
1633 return NGX_OK;
|
|
1634 }
|
431
|
1635
|
|
1636
|
|
1637 void
|
|
1638 ngx_http_variable_value_rbtree_insert(ngx_rbtree_node_t *temp,
|
|
1639 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
1640 {
|
|
1641 ngx_rbtree_node_t **p;
|
|
1642 ngx_http_variable_value_node_t *vvn, *vvt;
|
|
1643
|
|
1644 for ( ;; ) {
|
|
1645
|
|
1646 vvn = (ngx_http_variable_value_node_t *) node;
|
|
1647 vvt = (ngx_http_variable_value_node_t *) temp;
|
|
1648
|
|
1649 if (node->key != temp->key) {
|
|
1650
|
|
1651 p = (node->key < temp->key) ? &temp->left : &temp->right;
|
|
1652
|
|
1653 } else if (vvn->len != vvt->len) {
|
|
1654
|
|
1655 p = (vvn->len < vvt->len) ? &temp->left : &temp->right;
|
|
1656
|
|
1657 } else {
|
|
1658 p = (ngx_memcmp(vvn->value->data, vvt->value->data, vvn->len) < 0)
|
|
1659 ? &temp->left : &temp->right;
|
|
1660 }
|
|
1661
|
|
1662 if (*p == sentinel) {
|
|
1663 break;
|
|
1664 }
|
|
1665
|
|
1666 temp = *p;
|
|
1667 }
|
|
1668
|
|
1669 *p = node;
|
|
1670 node->parent = temp;
|
|
1671 node->left = sentinel;
|
|
1672 node->right = sentinel;
|
|
1673 ngx_rbt_red(node);
|
|
1674 }
|
|
1675
|
|
1676
|
|
1677 ngx_http_variable_value_t *
|
|
1678 ngx_http_variable_value_lookup(ngx_rbtree_t *rbtree, ngx_str_t *val,
|
|
1679 uint32_t hash)
|
|
1680 {
|
|
1681 ngx_int_t rc;
|
|
1682 ngx_rbtree_node_t *node, *sentinel;
|
|
1683 ngx_http_variable_value_node_t *vvn;
|
|
1684
|
|
1685 node = rbtree->root;
|
|
1686 sentinel = rbtree->sentinel;
|
|
1687
|
|
1688 while (node != sentinel) {
|
|
1689
|
|
1690 vvn = (ngx_http_variable_value_node_t *) node;
|
|
1691
|
|
1692 if (hash != node->key) {
|
|
1693 node = (hash < node->key) ? node->left : node->right;
|
|
1694 continue;
|
|
1695 }
|
|
1696
|
|
1697 if (val->len != vvn->len) {
|
|
1698 node = (val->len < vvn->len) ? node->left : node->right;
|
|
1699 continue;
|
|
1700 }
|
|
1701
|
|
1702 rc = ngx_memcmp(val->data, vvn->value->data, val->len);
|
|
1703
|
|
1704 if (rc < 0) {
|
|
1705 node = node->left;
|
|
1706 continue;
|
|
1707 }
|
|
1708
|
|
1709 if (rc > 0) {
|
|
1710 node = node->right;
|
|
1711 continue;
|
|
1712 }
|
|
1713
|
|
1714 return vvn->value;
|
|
1715 }
|
|
1716
|
|
1717 return NULL;
|
|
1718 }
|