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