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_event.h>
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10 #include <ngx_http.h>
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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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186
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15 static void ngx_http_variable_request_set_size(ngx_http_request_t *r,
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16 ngx_http_variable_value_t *v, uintptr_t data);
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122
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17 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
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18 ngx_http_variable_value_t *v, uintptr_t data);
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19 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r,
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20 ngx_http_variable_value_t *v, uintptr_t data);
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126
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21
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22 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
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122
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23 ngx_http_variable_value_t *v, uintptr_t data);
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126
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24 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
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25 ngx_http_variable_value_t *v, uintptr_t data);
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26
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122
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27 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
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28 ngx_http_variable_value_t *v, uintptr_t data);
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272
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29 static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
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30 ngx_http_variable_value_t *v, uintptr_t data);
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122
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31 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r,
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32 ngx_http_variable_value_t *v, uintptr_t data);
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33 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r,
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34 ngx_http_variable_value_t *v, uintptr_t data);
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35 static ngx_int_t ngx_http_variable_server_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_server_port(ngx_http_request_t *r,
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38 ngx_http_variable_value_t *v, uintptr_t data);
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238
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39 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r,
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40 ngx_http_variable_value_t *v, uintptr_t data);
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122
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41 static ngx_int_t ngx_http_variable_document_root(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_request_filename(ngx_http_request_t *r,
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44 ngx_http_variable_value_t *v, uintptr_t data);
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45 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r,
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46 ngx_http_variable_value_t *v, uintptr_t data);
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47 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r,
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48 ngx_http_variable_value_t *v, uintptr_t data);
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160
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49 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
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50 ngx_http_variable_value_t *v, uintptr_t data);
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178
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51 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r,
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52 ngx_http_variable_value_t *v, uintptr_t data);
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244
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53 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r,
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54 ngx_http_variable_value_t *v, uintptr_t data);
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48
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55
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190
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56 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r,
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57 ngx_http_variable_value_t *v, uintptr_t data);
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58 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r,
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59 ngx_http_variable_value_t *v, uintptr_t data);
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60 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
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61 ngx_http_variable_value_t *v, uintptr_t data);
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62 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r,
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63 ngx_http_variable_value_t *v, uintptr_t data);
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64 static ngx_int_t ngx_http_variable_sent_keep_alive(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_transfer_encoding(ngx_http_request_t *r,
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67 ngx_http_variable_value_t *v, uintptr_t data);
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68
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48
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69
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58
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70 /*
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71 * TODO:
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72 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
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73 * REMOTE_HOST (null), REMOTE_IDENT (null),
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74 * SERVER_SOFTWARE
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75 *
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120
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76 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
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58
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77 */
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48
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78
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190
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79 /*
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80 * the $http_host, $http_user_agent, $http_referer, $http_via,
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81 * and $http_x_forwarded_for variables may be handled by generic
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82 * ngx_http_variable_unknown_header_in(), but for perfomance reasons
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83 * they are handled using dedicated entries
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84 */
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85
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58
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86 static ngx_http_variable_t ngx_http_core_variables[] = {
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87
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186
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88 { ngx_string("http_host"), NULL, ngx_http_variable_header,
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82
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89 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
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48
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90
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186
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91 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header,
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82
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92 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
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58
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93
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186
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94 { ngx_string("http_referer"), NULL, ngx_http_variable_header,
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82
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95 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
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48
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96
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97 #if (NGX_HTTP_GZIP)
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186
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98 { ngx_string("http_via"), NULL, ngx_http_variable_header,
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82
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99 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
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48
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100 #endif
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101
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286
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102 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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186
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103 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header,
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82
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104 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
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48
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105 #endif
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106
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186
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107 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers,
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82
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108 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
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64
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109
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186
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110 { ngx_string("content_length"), NULL, ngx_http_variable_header,
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82
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111 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
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58
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112
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186
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113 { ngx_string("content_type"), NULL, ngx_http_variable_header,
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82
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114 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
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58
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115
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186
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116 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 },
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58
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117
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272
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118 { ngx_string("binary_remote_addr"), NULL,
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119 ngx_http_variable_binary_remote_addr, 0, 0, 0 },
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120
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186
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121 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 },
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48
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122
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186
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123 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 },
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58
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124
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186
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125 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 },
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58
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126
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186
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127 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 },
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58
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128
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186
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129 { ngx_string("server_protocol"), NULL, ngx_http_variable_request,
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82
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130 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
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58
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131
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238
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132 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 },
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133
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186
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134 { ngx_string("request_uri"), NULL, ngx_http_variable_request,
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82
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135 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
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48
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136
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186
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137 { ngx_string("uri"), NULL, ngx_http_variable_request,
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138 offsetof(ngx_http_request_t, uri),
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139 NGX_HTTP_VAR_NOCACHABLE, 0 },
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140
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141 { ngx_string("document_uri"), NULL, ngx_http_variable_request,
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122
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142 offsetof(ngx_http_request_t, uri),
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143 NGX_HTTP_VAR_NOCACHABLE, 0 },
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144
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186
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145 { ngx_string("request"), NULL, ngx_http_variable_request,
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118
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146 offsetof(ngx_http_request_t, request_line), 0, 0 },
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147
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186
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148 { ngx_string("document_root"), NULL,
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220
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149 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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150
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186
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151 { ngx_string("query_string"), NULL, ngx_http_variable_request,
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58
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152 offsetof(ngx_http_request_t, args),
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82
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153 NGX_HTTP_VAR_NOCACHABLE, 0 },
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48
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154
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186
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155 { ngx_string("args"), NULL, ngx_http_variable_request,
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138
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156 offsetof(ngx_http_request_t, args),
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157 NGX_HTTP_VAR_NOCACHABLE, 0 },
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158
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186
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159 { ngx_string("request_filename"), NULL,
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160 ngx_http_variable_request_filename, 0,
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82
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161 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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162
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186
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163 { ngx_string("server_name"), NULL, ngx_http_variable_request,
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82
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164 offsetof(ngx_http_request_t, server_name), 0, 0 },
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58
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165
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186
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166 { ngx_string("request_method"), NULL,
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167 ngx_http_variable_request_method, 0, 0, 0 },
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58
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168
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186
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169 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 },
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58
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170
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186
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171 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent,
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160
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172 0, 0, 0 },
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173
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186
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174 { ngx_string("request_completion"), NULL,
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175 ngx_http_variable_request_completion,
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178
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176 0, 0, 0 },
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177
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244
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178 { ngx_string("request_body_file"), NULL,
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179 ngx_http_variable_request_body_file,
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180 0, 0, 0 },
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181
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190
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182 { ngx_string("sent_http_content_type"), NULL,
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183 ngx_http_variable_sent_content_type, 0, 0, 0 },
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184
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185 { ngx_string("sent_http_content_length"), NULL,
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186 ngx_http_variable_sent_content_length, 0, 0, 0 },
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187
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188 { ngx_string("sent_http_last_modified"), NULL,
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189 ngx_http_variable_sent_last_modified, 0, 0, 0 },
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190
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191 { ngx_string("sent_http_connection"), NULL,
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192 ngx_http_variable_sent_connection, 0, 0, 0 },
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193
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194 { ngx_string("sent_http_keep_alive"), NULL,
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195 ngx_http_variable_sent_keep_alive, 0, 0, 0 },
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196
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197 { ngx_string("sent_http_transfer_encoding"), NULL,
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198 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 },
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199
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200 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers,
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201 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 },
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202
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186
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203 { ngx_string("limit_rate"), ngx_http_variable_request_set_size,
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204 ngx_http_variable_request,
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205 offsetof(ngx_http_request_t, limit_rate),
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206 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOCACHABLE, 0 },
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207
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208 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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48
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209 };
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210
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211
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126
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212 ngx_http_variable_value_t ngx_http_variable_null_value =
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213 ngx_http_variable("");
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214 ngx_http_variable_value_t ngx_http_variable_true_value =
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215 ngx_http_variable("1");
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216
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217
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48
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218 ngx_http_variable_t *
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58
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219 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
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220 {
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160
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221 ngx_int_t rc;
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58
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222 ngx_uint_t i;
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160
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223 ngx_hash_key_t *key;
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58
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224 ngx_http_variable_t *v;
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225 ngx_http_core_main_conf_t *cmcf;
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226
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227 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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228
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160
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229 key = cmcf->variables_keys->keys.elts;
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230 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) {
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231 if (name->len != key[i].key.len
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232 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0)
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58
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233 {
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234 continue;
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235 }
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236
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160
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237 v = key[i].value;
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238
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239 if (!(v->flags & NGX_HTTP_VAR_CHANGABLE)) {
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58
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240 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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241 "the duplicate \"%V\" variable", name);
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242 return NULL;
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243 }
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244
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160
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245 return v;
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58
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246 }
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247
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160
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248 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t));
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58
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249 if (v == NULL) {
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250 return NULL;
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251 }
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252
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253 v->name.len = name->len;
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254 v->name.data = ngx_palloc(cf->pool, name->len);
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255 if (v->name.data == NULL) {
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256 return NULL;
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257 }
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258
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259 for (i = 0; i < name->len; i++) {
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260 v->name.data[i] = ngx_tolower(name->data[i]);
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261 }
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262
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186
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263 v->set_handler = NULL;
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264 v->get_handler = NULL;
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58
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265 v->data = 0;
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266 v->flags = flags;
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82
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267 v->index = 0;
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58
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268
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160
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269 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
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270
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271 if (rc == NGX_ERROR) {
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272 return NULL;
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273 }
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274
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275 if (rc == NGX_BUSY) {
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276 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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277 "conflicting variable name \"%V\"", name);
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278 return NULL;
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279 }
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280
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58
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281 return v;
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282 }
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283
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284
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285 ngx_int_t
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286 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
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48
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287 {
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50
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288 ngx_uint_t i;
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289 ngx_http_variable_t *v;
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48
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290 ngx_http_core_main_conf_t *cmcf;
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291
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292 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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293
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50
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294 v = cmcf->variables.elts;
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295
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296 if (v == NULL) {
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48
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297 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
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298 sizeof(ngx_http_variable_t)) == NGX_ERROR)
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299 {
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58
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300 return NGX_ERROR;
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48
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301 }
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50
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302
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303 } else {
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304 for (i = 0; i < cmcf->variables.nelts; i++) {
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305 if (name->len != v[i].name.len
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306 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
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307 {
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308 continue;
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309 }
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310
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58
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311 return i;
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50
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312 }
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48
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313 }
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314
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50
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315 v = ngx_array_push(&cmcf->variables);
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316 if (v == NULL) {
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58
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317 return NGX_ERROR;
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48
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318 }
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319
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50
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320 v->name.len = name->len;
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321 v->name.data = ngx_palloc(cf->pool, name->len);
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322 if (v->name.data == NULL) {
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58
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323 return NGX_ERROR;
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50
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324 }
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48
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325
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50
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326 for (i = 0; i < name->len; i++) {
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58
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327 v->name.data[i] = ngx_tolower(name->data[i]);
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50
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328 }
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329
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186
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330 v->set_handler = NULL;
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331 v->get_handler = NULL;
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50
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332 v->data = 0;
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58
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333 v->flags = 0;
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82
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334 v->index = cmcf->variables.nelts - 1;
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50
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335
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58
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336 return cmcf->variables.nelts - 1;
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48
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337 }
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338
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339
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340 ngx_http_variable_value_t *
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341 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
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342 {
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50
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343 ngx_http_variable_t *v;
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48
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344 ngx_http_core_main_conf_t *cmcf;
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345
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346 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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347
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102
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348 if (cmcf->variables.nelts <= index) {
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48
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349 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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350 "unknown variable index: %d", index);
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351 return NULL;
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352 }
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353
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122
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354 if (r->variables[index].not_found || r->variables[index].valid) {
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355 return &r->variables[index];
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50
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356 }
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48
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357
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50
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358 v = cmcf->variables.elts;
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48
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359
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186
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360 if (v[index].get_handler(r, &r->variables[index], v[index].data)
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361 == NGX_OK)
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362 {
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122
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363 if (v[index].flags & NGX_HTTP_VAR_NOCACHABLE) {
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364 r->variables[index].no_cachable = 1;
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48
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365 }
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122
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366
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367 return &r->variables[index];
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48
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368 }
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369
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206
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370 r->variables[index].valid = 0;
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371 r->variables[index].not_found = 1;
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372
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122
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373 return NULL;
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374 }
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375
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376
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377 ngx_http_variable_value_t *
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378 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
379 {
|
294
|
380 ngx_http_variable_value_t *v;
|
122
|
381
|
|
382 v = &r->variables[index];
|
|
383
|
|
384 if (v->valid) {
|
|
385 if (!v->no_cachable) {
|
|
386 return v;
|
|
387 }
|
|
388
|
|
389 v->valid = 0;
|
|
390 v->not_found = 0;
|
58
|
391 }
|
50
|
392
|
122
|
393 return ngx_http_get_indexed_variable(r, index);
|
48
|
394 }
|
|
395
|
|
396
|
|
397 ngx_http_variable_value_t *
|
184
|
398 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key,
|
|
399 ngx_uint_t nowarn)
|
48
|
400 {
|
50
|
401 ngx_http_variable_t *v;
|
122
|
402 ngx_http_variable_value_t *vv;
|
48
|
403 ngx_http_core_main_conf_t *cmcf;
|
|
404
|
|
405 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
406
|
160
|
407 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len);
|
48
|
408
|
160
|
409 if (v) {
|
|
410 if (v->flags & NGX_HTTP_VAR_INDEXED) {
|
|
411 return ngx_http_get_indexed_variable(r, v->index);
|
68
|
412
|
|
413 } else {
|
48
|
414
|
122
|
415 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
50
|
416
|
186
|
417 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) {
|
122
|
418 return vv;
|
|
419 }
|
58
|
420
|
122
|
421 return NULL;
|
|
422 }
|
58
|
423 }
|
|
424
|
|
425 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
426 if (vv == NULL) {
|
|
427 return NULL;
|
|
428 }
|
|
429
|
122
|
430 if (ngx_strncmp(name->data, "http_", 5) == 0) {
|
48
|
431
|
126
|
432 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name)
|
|
433 == NGX_OK)
|
|
434 {
|
|
435 return vv;
|
|
436 }
|
|
437
|
|
438 return NULL;
|
|
439 }
|
|
440
|
|
441 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) {
|
|
442
|
|
443 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name)
|
|
444 == NGX_OK)
|
122
|
445 {
|
|
446 return vv;
|
|
447 }
|
48
|
448
|
|
449 return NULL;
|
|
450 }
|
|
451
|
296
|
452 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) {
|
|
453
|
|
454 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name)
|
|
455 == NGX_OK)
|
|
456 {
|
|
457 return vv;
|
|
458 }
|
|
459
|
|
460 return NULL;
|
|
461 }
|
|
462
|
184
|
463 vv->not_found = 1;
|
122
|
464
|
184
|
465 if (nowarn == 0) {
|
|
466 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
467 "unknown \"%V\" variable", name);
|
|
468 }
|
48
|
469
|
50
|
470 return vv;
|
48
|
471 }
|
|
472
|
|
473
|
122
|
474 static ngx_int_t
|
|
475 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
476 uintptr_t data)
|
|
477 {
|
|
478 ngx_str_t *s;
|
|
479
|
|
480 s = (ngx_str_t *) ((char *) r + data);
|
|
481
|
|
482 if (s->data) {
|
|
483 v->len = s->len;
|
|
484 v->valid = 1;
|
|
485 v->no_cachable = 0;
|
|
486 v->not_found = 0;
|
|
487 v->data = s->data;
|
|
488
|
|
489 } else {
|
|
490 v->not_found = 1;
|
|
491 }
|
|
492
|
|
493 return NGX_OK;
|
|
494 }
|
|
495
|
|
496
|
186
|
497 static void
|
|
498 ngx_http_variable_request_set_size(ngx_http_request_t *r,
|
|
499 ngx_http_variable_value_t *v, uintptr_t data)
|
|
500 {
|
|
501 ssize_t s, *sp;
|
|
502 ngx_str_t val;
|
|
503
|
320
|
504 val.len = v->len;
|
186
|
505 val.data = v->data;
|
|
506
|
|
507 s = ngx_parse_size(&val);
|
|
508
|
|
509 if (s == NGX_ERROR) {
|
|
510 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
511 "invalid size \"%V\"", &val);
|
|
512 return;
|
|
513 }
|
|
514
|
|
515 sp = (ssize_t *) ((char *) r + data);
|
|
516
|
|
517 *sp = s;
|
|
518
|
|
519 return;
|
|
520 }
|
|
521
|
|
522
|
122
|
523 static ngx_int_t
|
|
524 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
525 uintptr_t data)
|
64
|
526 {
|
122
|
527 ngx_table_elt_t *h;
|
|
528
|
|
529 h = *(ngx_table_elt_t **) ((char *) r + data);
|
|
530
|
|
531 if (h) {
|
|
532 v->len = h->value.len;
|
|
533 v->valid = 1;
|
|
534 v->no_cachable = 0;
|
|
535 v->not_found = 0;
|
|
536 v->data = h->value.data;
|
|
537
|
|
538 } else {
|
|
539 v->not_found = 1;
|
|
540 }
|
|
541
|
|
542 return NGX_OK;
|
|
543 }
|
|
544
|
|
545
|
|
546 static ngx_int_t
|
|
547 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
548 uintptr_t data)
|
|
549 {
|
216
|
550 ssize_t len;
|
122
|
551 u_char *p;
|
216
|
552 ngx_uint_t i, n;
|
122
|
553 ngx_array_t *a;
|
|
554 ngx_table_elt_t **h;
|
64
|
555
|
|
556 a = (ngx_array_t *) ((char *) r + data);
|
|
557
|
216
|
558 n = a->nelts;
|
|
559
|
|
560 if (n == 0) {
|
122
|
561 v->not_found = 1;
|
|
562 return NGX_OK;
|
64
|
563 }
|
|
564
|
122
|
565 v->valid = 1;
|
|
566 v->no_cachable = 0;
|
|
567 v->not_found = 0;
|
64
|
568
|
|
569 h = a->elts;
|
|
570
|
216
|
571 if (n == 1) {
|
122
|
572 v->len = (*h)->value.len;
|
|
573 v->data = (*h)->value.data;
|
64
|
574
|
122
|
575 return NGX_OK;
|
64
|
576 }
|
|
577
|
216
|
578 len = - (ssize_t) (sizeof("; ") - 1);
|
122
|
579
|
216
|
580 for (i = 0; i < n; i++) {
|
122
|
581 len += h[i]->value.len + sizeof("; ") - 1;
|
64
|
582 }
|
|
583
|
122
|
584 p = ngx_palloc(r->pool, len);
|
|
585 if (p == NULL) {
|
|
586 return NGX_ERROR;
|
|
587 }
|
|
588
|
|
589 v->len = len;
|
|
590 v->data = p;
|
64
|
591
|
|
592 for (i = 0; /* void */ ; i++) {
|
122
|
593 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
64
|
594
|
216
|
595 if (i == n - 1) {
|
64
|
596 break;
|
|
597 }
|
|
598
|
|
599 *p++ = ';'; *p++ = ' ';
|
|
600 }
|
|
601
|
122
|
602 return NGX_OK;
|
64
|
603 }
|
|
604
|
|
605
|
122
|
606 static ngx_int_t
|
126
|
607 ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
608 ngx_http_variable_value_t *v, uintptr_t data)
|
|
609 {
|
|
610 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
611 &r->headers_in.headers.part,
|
|
612 sizeof("http_") - 1);
|
|
613 }
|
|
614
|
|
615
|
|
616 static ngx_int_t
|
|
617 ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
122
|
618 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
619 {
|
126
|
620 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
621 &r->headers_out.headers.part,
|
|
622 sizeof("sent_http_") - 1);
|
|
623 }
|
50
|
624
|
126
|
625
|
296
|
626 ngx_int_t
|
126
|
627 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var,
|
|
628 ngx_list_part_t *part, size_t prefix)
|
|
629 {
|
122
|
630 u_char ch;
|
|
631 ngx_uint_t i, n;
|
|
632 ngx_table_elt_t *header;
|
48
|
633
|
|
634 header = part->elts;
|
|
635
|
|
636 for (i = 0; /* void */ ; i++) {
|
|
637
|
|
638 if (i >= part->nelts) {
|
|
639 if (part->next == NULL) {
|
|
640 break;
|
|
641 }
|
|
642
|
|
643 part = part->next;
|
|
644 header = part->elts;
|
|
645 i = 0;
|
|
646 }
|
|
647
|
126
|
648 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) {
|
48
|
649 ch = header[i].key.data[n];
|
|
650
|
58
|
651 if (ch >= 'A' && ch <= 'Z') {
|
|
652 ch |= 0x20;
|
48
|
653
|
|
654 } else if (ch == '-') {
|
|
655 ch = '_';
|
|
656 }
|
|
657
|
126
|
658 if (var->data[n + prefix] != ch) {
|
48
|
659 break;
|
|
660 }
|
|
661 }
|
|
662
|
242
|
663 if (n + prefix == var->len && n == header[i].key.len) {
|
122
|
664 v->len = header[i].value.len;
|
|
665 v->valid = 1;
|
|
666 v->no_cachable = 0;
|
|
667 v->not_found = 0;
|
|
668 v->data = header[i].value.data;
|
48
|
669
|
122
|
670 return NGX_OK;
|
48
|
671 }
|
|
672 }
|
|
673
|
122
|
674 v->not_found = 1;
|
|
675
|
|
676 return NGX_OK;
|
58
|
677 }
|
|
678
|
|
679
|
122
|
680 static ngx_int_t
|
|
681 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
682 uintptr_t data)
|
58
|
683 {
|
258
|
684 if (r->host_start == NULL) {
|
|
685
|
|
686 if (r->headers_in.host) {
|
|
687 v->len = r->headers_in.host_name_len;
|
|
688 v->data = r->headers_in.host->value.data;
|
|
689
|
|
690 } else {
|
|
691 v->len = r->server_name.len;
|
|
692 v->data = r->server_name.data;
|
|
693 }
|
58
|
694
|
270
|
695 } else if (r->host_end) {
|
258
|
696 v->len = r->host_end - r->host_start;
|
|
697 v->data = r->host_start;
|
270
|
698
|
|
699 } else {
|
|
700 v->not_found = 1;
|
|
701 return NGX_OK;
|
58
|
702 }
|
|
703
|
122
|
704 v->valid = 1;
|
|
705 v->no_cachable = 0;
|
|
706 v->not_found = 0;
|
58
|
707
|
122
|
708 return NGX_OK;
|
48
|
709 }
|
|
710
|
|
711
|
122
|
712 static ngx_int_t
|
272
|
713 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
|
|
714 ngx_http_variable_value_t *v, uintptr_t data)
|
|
715 {
|
|
716 struct sockaddr_in *sin;
|
|
717
|
|
718 /* AF_INET only */
|
|
719
|
|
720 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
721
|
|
722 v->len = sizeof(in_addr_t);
|
|
723 v->valid = 1;
|
|
724 v->no_cachable = 0;
|
|
725 v->not_found = 0;
|
|
726 v->data = (u_char *) &sin->sin_addr.s_addr;
|
|
727
|
|
728 return NGX_OK;
|
|
729 }
|
|
730
|
|
731
|
|
732 static ngx_int_t
|
122
|
733 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
734 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
735 {
|
122
|
736 v->len = r->connection->addr_text.len;
|
|
737 v->valid = 1;
|
|
738 v->no_cachable = 0;
|
|
739 v->not_found = 0;
|
|
740 v->data = r->connection->addr_text.data;
|
48
|
741
|
122
|
742 return NGX_OK;
|
48
|
743 }
|
|
744
|
|
745
|
122
|
746 static ngx_int_t
|
|
747 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
748 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
749 {
|
122
|
750 ngx_uint_t port;
|
|
751 struct sockaddr_in *sin;
|
58
|
752
|
122
|
753 v->len = 0;
|
|
754 v->valid = 1;
|
|
755 v->no_cachable = 0;
|
|
756 v->not_found = 0;
|
58
|
757
|
122
|
758 v->data = ngx_palloc(r->pool, sizeof("65535") - 1);
|
|
759 if (v->data == NULL) {
|
|
760 return NGX_ERROR;
|
58
|
761 }
|
|
762
|
|
763 /* AF_INET only */
|
126
|
764
|
58
|
765 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
766 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
126
|
767
|
58
|
768 port = ntohs(sin->sin_port);
|
126
|
769
|
58
|
770 if (port > 0 && port < 65536) {
|
122
|
771 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
58
|
772 }
|
|
773 }
|
|
774
|
122
|
775 return NGX_OK;
|
58
|
776 }
|
|
777
|
|
778
|
122
|
779 static ngx_int_t
|
|
780 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
781 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
782 {
|
122
|
783 socklen_t len;
|
|
784 ngx_connection_t *c;
|
|
785 struct sockaddr_in sin;
|
48
|
786
|
122
|
787 v->data = ngx_palloc(r->pool, INET_ADDRSTRLEN);
|
|
788 if (v->data == NULL) {
|
|
789 return NGX_ERROR;
|
58
|
790 }
|
|
791
|
|
792 c = r->connection;
|
|
793
|
|
794 if (r->in_addr == 0) {
|
|
795 len = sizeof(struct sockaddr_in);
|
|
796 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
|
250
|
797 ngx_connection_error(c, ngx_socket_errno, "getsockname() failed");
|
122
|
798 return NGX_ERROR;
|
58
|
799 }
|
|
800
|
|
801 r->in_addr = sin.sin_addr.s_addr;
|
|
802 }
|
|
803
|
122
|
804 v->len = ngx_inet_ntop(c->listening->family, &r->in_addr,
|
|
805 v->data, INET_ADDRSTRLEN);
|
|
806 v->valid = 1;
|
|
807 v->no_cachable = 0;
|
|
808 v->not_found = 0;
|
48
|
809
|
122
|
810 return NGX_OK;
|
48
|
811 }
|
|
812
|
|
813
|
122
|
814 static ngx_int_t
|
|
815 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
816 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
817 {
|
122
|
818 v->len = r->port_text->len - 1;
|
|
819 v->valid = 1;
|
|
820 v->no_cachable = 0;
|
|
821 v->not_found = 0;
|
|
822 v->data = r->port_text->data + 1;
|
58
|
823
|
122
|
824 return NGX_OK;
|
58
|
825 }
|
|
826
|
|
827
|
122
|
828 static ngx_int_t
|
238
|
829 ngx_http_variable_scheme(ngx_http_request_t *r,
|
|
830 ngx_http_variable_value_t *v, uintptr_t data)
|
|
831 {
|
|
832 #if (NGX_HTTP_SSL)
|
|
833
|
|
834 if (r->connection->ssl) {
|
|
835 v->len = sizeof("https") - 1;
|
|
836 v->valid = 1;
|
|
837 v->no_cachable = 0;
|
|
838 v->not_found = 0;
|
|
839 v->data = (u_char *) "https";
|
|
840
|
|
841 return NGX_OK;
|
|
842 }
|
|
843
|
|
844 #endif
|
|
845
|
|
846 v->len = sizeof("http") - 1;
|
|
847 v->valid = 1;
|
|
848 v->no_cachable = 0;
|
|
849 v->not_found = 0;
|
|
850 v->data = (u_char *) "http";
|
|
851
|
|
852 return NGX_OK;
|
|
853 }
|
|
854
|
|
855
|
|
856 static ngx_int_t
|
122
|
857 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
858 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
859 {
|
220
|
860 ngx_str_t path;
|
122
|
861 ngx_http_core_loc_conf_t *clcf;
|
58
|
862
|
|
863 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
864
|
220
|
865 if (clcf->root_lengths == NULL) {
|
|
866 v->len = clcf->root.len;
|
|
867 v->valid = 1;
|
|
868 v->no_cachable = 0;
|
|
869 v->not_found = 0;
|
|
870 v->data = clcf->root.data;
|
|
871
|
|
872 } else {
|
|
873 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0,
|
|
874 clcf->root_values->elts)
|
|
875 == NULL)
|
|
876 {
|
|
877 return NGX_ERROR;
|
|
878 }
|
|
879
|
|
880 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path) == NGX_ERROR) {
|
|
881 return NGX_ERROR;
|
|
882 }
|
|
883
|
|
884 v->len = path.len;
|
|
885 v->valid = 1;
|
|
886 v->no_cachable = 0;
|
|
887 v->not_found = 0;
|
|
888 v->data = path.data;
|
|
889 }
|
58
|
890
|
122
|
891 return NGX_OK;
|
58
|
892 }
|
|
893
|
|
894
|
122
|
895 static ngx_int_t
|
|
896 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
897 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
898 {
|
248
|
899 size_t root;
|
122
|
900 ngx_str_t path;
|
48
|
901
|
248
|
902 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
|
122
|
903 return NGX_ERROR;
|
106
|
904 }
|
58
|
905
|
106
|
906 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
58
|
907
|
122
|
908 v->len = path.len - 1;
|
|
909 v->valid = 1;
|
|
910 v->no_cachable = 0;
|
|
911 v->not_found = 0;
|
|
912 v->data = path.data;
|
48
|
913
|
122
|
914 return NGX_OK;
|
48
|
915 }
|
|
916
|
|
917
|
122
|
918 static ngx_int_t
|
|
919 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
920 ngx_http_variable_value_t *v, uintptr_t data)
|
110
|
921 {
|
196
|
922 if (r->main->method_name.data) {
|
|
923 v->len = r->main->method_name.len;
|
122
|
924 v->valid = 1;
|
|
925 v->no_cachable = 0;
|
|
926 v->not_found = 0;
|
196
|
927 v->data = r->main->method_name.data;
|
122
|
928
|
|
929 } else {
|
|
930 v->not_found = 1;
|
110
|
931 }
|
|
932
|
122
|
933 return NGX_OK;
|
110
|
934 }
|
|
935
|
|
936
|
122
|
937 static ngx_int_t
|
|
938 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
939 ngx_http_variable_value_t *v, uintptr_t data)
|
88
|
940 {
|
122
|
941 ngx_int_t rc;
|
88
|
942
|
|
943 rc = ngx_http_auth_basic_user(r);
|
|
944
|
|
945 if (rc == NGX_DECLINED) {
|
122
|
946 v->not_found = 1;
|
|
947 return NGX_OK;
|
88
|
948 }
|
|
949
|
|
950 if (rc == NGX_ERROR) {
|
122
|
951 return NGX_ERROR;
|
88
|
952 }
|
|
953
|
122
|
954 v->len = r->headers_in.user.len;
|
|
955 v->valid = 1;
|
|
956 v->no_cachable = 0;
|
|
957 v->not_found = 0;
|
|
958 v->data = r->headers_in.user.data;
|
120
|
959
|
122
|
960 return NGX_OK;
|
120
|
961 }
|
|
962
|
|
963
|
160
|
964 static ngx_int_t
|
|
965 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
|
|
966 ngx_http_variable_value_t *v, uintptr_t data)
|
|
967 {
|
|
968 off_t sent;
|
|
969 u_char *p;
|
|
970
|
|
971 sent = r->connection->sent - r->header_size;
|
|
972
|
|
973 if (sent < 0) {
|
|
974 sent = 0;
|
|
975 }
|
|
976
|
|
977 p = ngx_palloc(r->pool, NGX_OFF_T_LEN);
|
|
978 if (p == NULL) {
|
|
979 return NGX_ERROR;
|
|
980 }
|
|
981
|
|
982 v->len = ngx_sprintf(p, "%O", sent) - p;
|
|
983 v->valid = 1;
|
|
984 v->no_cachable = 0;
|
|
985 v->not_found = 0;
|
|
986 v->data = p;
|
|
987
|
|
988 return NGX_OK;
|
|
989 }
|
|
990
|
|
991
|
178
|
992 static ngx_int_t
|
190
|
993 ngx_http_variable_sent_content_type(ngx_http_request_t *r,
|
|
994 ngx_http_variable_value_t *v, uintptr_t data)
|
|
995 {
|
|
996 if (r->headers_out.content_type.len) {
|
|
997 v->len = r->headers_out.content_type.len;
|
|
998 v->valid = 1;
|
|
999 v->no_cachable = 0;
|
|
1000 v->not_found = 0;
|
|
1001 v->data = r->headers_out.content_type.data;
|
|
1002
|
|
1003 } else {
|
|
1004 v->not_found = 1;
|
|
1005 }
|
|
1006
|
|
1007 return NGX_OK;
|
|
1008 }
|
|
1009
|
|
1010
|
|
1011 static ngx_int_t
|
|
1012 ngx_http_variable_sent_content_length(ngx_http_request_t *r,
|
|
1013 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1014 {
|
|
1015 u_char *p;
|
|
1016
|
|
1017 if (r->headers_out.content_length) {
|
|
1018 v->len = r->headers_out.content_length->value.len;
|
|
1019 v->valid = 1;
|
|
1020 v->no_cachable = 0;
|
|
1021 v->not_found = 0;
|
|
1022 v->data = r->headers_out.content_length->value.data;
|
|
1023
|
|
1024 return NGX_OK;
|
|
1025 }
|
|
1026
|
|
1027 if (r->headers_out.content_length_n >= 0) {
|
|
1028 p = ngx_palloc(r->pool, NGX_OFF_T_LEN);
|
|
1029 if (p == NULL) {
|
|
1030 return NGX_ERROR;
|
|
1031 }
|
|
1032
|
|
1033 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p;
|
|
1034 v->valid = 1;
|
|
1035 v->no_cachable = 0;
|
|
1036 v->not_found = 0;
|
|
1037 v->data = p;
|
|
1038
|
|
1039 return NGX_OK;
|
|
1040 }
|
|
1041
|
|
1042 v->not_found = 1;
|
|
1043
|
|
1044 return NGX_OK;
|
|
1045 }
|
|
1046
|
|
1047
|
|
1048 static ngx_int_t
|
|
1049 ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
|
|
1050 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1051 {
|
|
1052 u_char *p;
|
|
1053
|
|
1054 if (r->headers_out.last_modified) {
|
|
1055 v->len = r->headers_out.last_modified->value.len;
|
|
1056 v->valid = 1;
|
|
1057 v->no_cachable = 0;
|
|
1058 v->not_found = 0;
|
|
1059 v->data = r->headers_out.last_modified->value.data;
|
|
1060
|
|
1061 return NGX_OK;
|
|
1062 }
|
|
1063
|
|
1064 if (r->headers_out.last_modified_time >= 0) {
|
|
1065 p = ngx_palloc(r->pool,
|
|
1066 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1);
|
|
1067 if (p == NULL) {
|
|
1068 return NGX_ERROR;
|
|
1069 }
|
|
1070
|
|
1071 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p;
|
|
1072 v->valid = 1;
|
|
1073 v->no_cachable = 0;
|
|
1074 v->not_found = 0;
|
|
1075 v->data = p;
|
|
1076
|
|
1077 return NGX_OK;
|
|
1078 }
|
|
1079
|
|
1080 v->not_found = 1;
|
|
1081
|
|
1082 return NGX_OK;
|
|
1083 }
|
|
1084
|
|
1085
|
|
1086 static ngx_int_t
|
|
1087 ngx_http_variable_sent_connection(ngx_http_request_t *r,
|
|
1088 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1089 {
|
|
1090 size_t len;
|
|
1091 char *p;
|
|
1092
|
|
1093 if (r->keepalive) {
|
|
1094 len = sizeof("keep-alive") - 1;
|
|
1095 p = "keep-alive";
|
|
1096
|
|
1097 } else {
|
|
1098 len = sizeof("close") - 1;
|
|
1099 p = "close";
|
|
1100 }
|
|
1101
|
|
1102 v->len = len;
|
|
1103 v->valid = 1;
|
|
1104 v->no_cachable = 0;
|
|
1105 v->not_found = 0;
|
|
1106 v->data = (u_char *) p;
|
|
1107
|
|
1108 return NGX_OK;
|
|
1109 }
|
|
1110
|
|
1111
|
|
1112 static ngx_int_t
|
|
1113 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
|
|
1114 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1115 {
|
|
1116 u_char *p;
|
|
1117 ngx_http_core_loc_conf_t *clcf;
|
|
1118
|
|
1119 if (r->keepalive) {
|
|
1120 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1121
|
|
1122 if (clcf->keepalive_header) {
|
|
1123
|
|
1124 p = ngx_palloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN);
|
|
1125 if (p == NULL) {
|
|
1126 return NGX_ERROR;
|
|
1127 }
|
|
1128
|
|
1129 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p;
|
|
1130 v->valid = 1;
|
|
1131 v->no_cachable = 0;
|
|
1132 v->not_found = 0;
|
|
1133 v->data = p;
|
|
1134
|
|
1135 return NGX_OK;
|
|
1136 }
|
|
1137 }
|
|
1138
|
|
1139 v->not_found = 1;
|
|
1140
|
|
1141 return NGX_OK;
|
|
1142 }
|
|
1143
|
|
1144
|
|
1145 static ngx_int_t
|
|
1146 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
|
|
1147 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1148 {
|
|
1149 if (r->chunked) {
|
|
1150 v->len = sizeof("chunked") - 1;
|
|
1151 v->valid = 1;
|
|
1152 v->no_cachable = 0;
|
|
1153 v->not_found = 0;
|
|
1154 v->data = (u_char *) "chunked";
|
|
1155
|
|
1156 } else {
|
|
1157 v->not_found = 1;
|
|
1158 }
|
|
1159
|
|
1160 return NGX_OK;
|
|
1161 }
|
|
1162
|
|
1163
|
|
1164 static ngx_int_t
|
178
|
1165 ngx_http_variable_request_completion(ngx_http_request_t *r,
|
|
1166 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1167 {
|
|
1168 if (r->request_complete) {
|
|
1169 v->len = 2;
|
|
1170 v->valid = 1;
|
|
1171 v->no_cachable = 0;
|
|
1172 v->not_found = 0;
|
|
1173 v->data = (u_char *) "OK";
|
|
1174
|
|
1175 return NGX_OK;
|
|
1176 }
|
|
1177
|
|
1178 v->len = 0;
|
|
1179 v->valid = 1;
|
|
1180 v->no_cachable = 0;
|
|
1181 v->not_found = 0;
|
|
1182 v->data = (u_char *) "";
|
|
1183
|
|
1184 return NGX_OK;
|
|
1185 }
|
|
1186
|
|
1187
|
244
|
1188 static ngx_int_t
|
|
1189 ngx_http_variable_request_body_file(ngx_http_request_t *r,
|
|
1190 ngx_http_variable_value_t *v, uintptr_t data)
|
|
1191 {
|
|
1192 if (r->request_body == NULL || r->request_body->temp_file == NULL) {
|
246
|
1193 v->not_found = 1;
|
244
|
1194
|
|
1195 return NGX_OK;
|
|
1196 }
|
|
1197
|
|
1198 v->len = r->request_body->temp_file->file.name.len;
|
|
1199 v->valid = 1;
|
|
1200 v->no_cachable = 0;
|
|
1201 v->not_found = 0;
|
|
1202 v->data = r->request_body->temp_file->file.name.data;
|
|
1203
|
|
1204 return NGX_OK;
|
|
1205 }
|
|
1206
|
|
1207
|
48
|
1208 ngx_int_t
|
58
|
1209 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
48
|
1210 {
|
160
|
1211 ngx_int_t rc;
|
|
1212 ngx_http_variable_t *v;
|
50
|
1213 ngx_http_core_main_conf_t *cmcf;
|
48
|
1214
|
58
|
1215 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
1216
|
160
|
1217 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool,
|
|
1218 sizeof(ngx_hash_keys_arrays_t));
|
|
1219 if (cmcf->variables_keys == NULL) {
|
|
1220 return NGX_ERROR;
|
|
1221 }
|
|
1222
|
|
1223 cmcf->variables_keys->pool = cf->pool;
|
|
1224 cmcf->variables_keys->temp_pool = cf->pool;
|
|
1225
|
|
1226 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL)
|
|
1227 != NGX_OK)
|
58
|
1228 {
|
48
|
1229 return NGX_ERROR;
|
|
1230 }
|
|
1231
|
160
|
1232 for (v = ngx_http_core_variables; v->name.len; v++) {
|
|
1233 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v,
|
|
1234 NGX_HASH_READONLY_KEY);
|
|
1235
|
|
1236 if (rc == NGX_OK) {
|
|
1237 continue;
|
48
|
1238 }
|
|
1239
|
160
|
1240 if (rc == NGX_BUSY) {
|
|
1241 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
1242 "conflicting variable name \"%V\"", &v->name);
|
|
1243 }
|
|
1244
|
|
1245 return NGX_ERROR;
|
48
|
1246 }
|
|
1247
|
|
1248 return NGX_OK;
|
|
1249 }
|
58
|
1250
|
|
1251
|
|
1252 ngx_int_t
|
|
1253 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
1254 {
|
|
1255 ngx_uint_t i, n;
|
160
|
1256 ngx_hash_key_t *key;
|
|
1257 ngx_hash_init_t hash;
|
58
|
1258 ngx_http_variable_t *v, *av;
|
|
1259 ngx_http_core_main_conf_t *cmcf;
|
|
1260
|
|
1261 /* set the handlers for the indexed http variables */
|
|
1262
|
|
1263 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
1264
|
|
1265 v = cmcf->variables.elts;
|
160
|
1266 key = cmcf->variables_keys->keys.elts;
|
58
|
1267
|
|
1268 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
1269
|
160
|
1270 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
58
|
1271
|
300
|
1272 av = key[n].value;
|
|
1273
|
|
1274 if (av->get_handler
|
|
1275 && v[i].name.len == key[n].key.len
|
160
|
1276 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len)
|
58
|
1277 == 0)
|
|
1278 {
|
186
|
1279 v[i].get_handler = av->get_handler;
|
160
|
1280 v[i].data = av->data;
|
76
|
1281
|
160
|
1282 av->flags |= NGX_HTTP_VAR_INDEXED;
|
|
1283 v[i].flags = av->flags;
|
58
|
1284
|
160
|
1285 av->index = i;
|
82
|
1286
|
58
|
1287 goto next;
|
|
1288 }
|
|
1289 }
|
|
1290
|
|
1291 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
186
|
1292 v[i].get_handler = ngx_http_variable_unknown_header_in;
|
126
|
1293 v[i].data = (uintptr_t) &v[i].name;
|
|
1294
|
|
1295 continue;
|
|
1296 }
|
|
1297
|
|
1298 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) {
|
186
|
1299 v[i].get_handler = ngx_http_variable_unknown_header_out;
|
58
|
1300 v[i].data = (uintptr_t) &v[i].name;
|
|
1301
|
|
1302 continue;
|
|
1303 }
|
|
1304
|
296
|
1305 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) {
|
|
1306 v[i].get_handler = ngx_http_upstream_header_variable;
|
|
1307 v[i].data = (uintptr_t) &v[i].name;
|
|
1308 v[i].flags = NGX_HTTP_VAR_NOCACHABLE;
|
|
1309
|
|
1310 continue;
|
|
1311 }
|
|
1312
|
58
|
1313 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
1314 "unknown \"%V\" variable", &v[i].name);
|
|
1315
|
|
1316 return NGX_ERROR;
|
|
1317
|
|
1318 next:
|
|
1319 continue;
|
|
1320 }
|
|
1321
|
|
1322
|
160
|
1323 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
1324 av = key[n].value;
|
|
1325
|
|
1326 if (av->flags & NGX_HTTP_VAR_NOHASH) {
|
|
1327 key[n].key.data = NULL;
|
132
|
1328 }
|
|
1329 }
|
|
1330
|
|
1331
|
160
|
1332 hash.hash = &cmcf->variables_hash;
|
|
1333 hash.key = ngx_hash_key;
|
|
1334 hash.max_size = cmcf->variables_hash_max_size;
|
|
1335 hash.bucket_size = cmcf->variables_hash_bucket_size;
|
|
1336 hash.name = "variables_hash";
|
|
1337 hash.pool = cf->pool;
|
|
1338 hash.temp_pool = NULL;
|
58
|
1339
|
160
|
1340 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts,
|
|
1341 cmcf->variables_keys->keys.nelts)
|
130
|
1342 != NGX_OK)
|
58
|
1343 {
|
|
1344 return NGX_ERROR;
|
|
1345 }
|
|
1346
|
160
|
1347 cmcf->variables_keys = NULL;
|
58
|
1348
|
|
1349 return NGX_OK;
|
|
1350 }
|