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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15 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
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16 ngx_http_variable_value_t *v, uintptr_t data);
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17 static ngx_int_t ngx_http_variable_headers(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_unknown_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_host(ngx_http_request_t *r,
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22 ngx_http_variable_value_t *v, uintptr_t data);
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23 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r,
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24 ngx_http_variable_value_t *v, uintptr_t data);
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25 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r,
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26 ngx_http_variable_value_t *v, uintptr_t data);
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27 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r,
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28 ngx_http_variable_value_t *v, uintptr_t data);
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29 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r,
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30 ngx_http_variable_value_t *v, uintptr_t data);
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31 static ngx_int_t ngx_http_variable_document_root(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_request_filename(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_request_method(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_user(ngx_http_request_t *r,
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38 ngx_http_variable_value_t *v, uintptr_t data);
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48
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39
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40
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58
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41 /*
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42 * TODO:
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43 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
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44 * REMOTE_HOST (null), REMOTE_IDENT (null),
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45 * SERVER_SOFTWARE
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46 *
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120
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47 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
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58
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48 */
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48
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49
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58
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50 static ngx_http_variable_t ngx_http_core_variables[] = {
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51
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52 { ngx_string("http_host"), ngx_http_variable_header,
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82
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53 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
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48
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54
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58
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55 { ngx_string("http_user_agent"), ngx_http_variable_header,
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82
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56 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
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58
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57
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58 { ngx_string("http_referer"), ngx_http_variable_header,
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82
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59 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
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48
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60
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61 #if (NGX_HTTP_GZIP)
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58
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62 { ngx_string("http_via"), ngx_http_variable_header,
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82
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63 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
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48
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64 #endif
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65
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66 #if (NGX_HTTP_PROXY)
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58
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67 { ngx_string("http_x_forwarded_for"), ngx_http_variable_header,
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82
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68 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
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48
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69 #endif
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70
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64
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71 { ngx_string("http_cookie"), ngx_http_variable_headers,
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82
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72 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
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64
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73
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58
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74 { ngx_string("content_length"), ngx_http_variable_header,
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82
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75 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
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58
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76
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77 { ngx_string("content_type"), ngx_http_variable_header,
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82
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78 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
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58
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79
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82
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80 { ngx_string("host"), ngx_http_variable_host, 0, 0, 0 },
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58
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81
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82
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82 { ngx_string("remote_addr"), ngx_http_variable_remote_addr, 0, 0, 0 },
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48
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83
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82
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84 { ngx_string("remote_port"), ngx_http_variable_remote_port, 0, 0, 0 },
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58
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85
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82
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86 { ngx_string("server_addr"), ngx_http_variable_server_addr, 0, 0, 0 },
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58
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87
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82
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88 { ngx_string("server_port"), ngx_http_variable_server_port, 0, 0, 0 },
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58
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89
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90 { ngx_string("server_protocol"), ngx_http_variable_request,
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82
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91 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
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58
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92
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93 { ngx_string("request_uri"), ngx_http_variable_request,
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82
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94 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
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48
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95
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122
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96 { ngx_string("uri"), ngx_http_variable_request,
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97 offsetof(ngx_http_request_t, uri),
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98 NGX_HTTP_VAR_NOCACHABLE, 0 },
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99
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58
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100 { ngx_string("document_uri"), ngx_http_variable_request,
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122
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101 offsetof(ngx_http_request_t, uri),
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102 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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103
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118
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104 { ngx_string("request"), ngx_http_variable_request,
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105 offsetof(ngx_http_request_t, request_line), 0, 0 },
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106
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82
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107 { ngx_string("document_root"), ngx_http_variable_document_root, 0, 0, 0 },
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58
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108
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109 { ngx_string("query_string"), ngx_http_variable_request,
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110 offsetof(ngx_http_request_t, args),
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82
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111 NGX_HTTP_VAR_NOCACHABLE, 0 },
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48
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112
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58
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113 { ngx_string("request_filename"), ngx_http_variable_request_filename, 0,
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82
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114 NGX_HTTP_VAR_NOCACHABLE, 0 },
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58
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115
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116 { ngx_string("server_name"), ngx_http_variable_request,
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82
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117 offsetof(ngx_http_request_t, server_name), 0, 0 },
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58
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118
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110
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119 { ngx_string("request_method"), ngx_http_variable_request_method, 0, 0, 0 },
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58
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120
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88
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121 { ngx_string("remote_user"), ngx_http_variable_remote_user, 0, 0, 0 },
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58
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122
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82
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123 { ngx_null_string, NULL, 0, 0, 0 }
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48
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124 };
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125
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126
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127 ngx_http_variable_t *
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58
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128 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
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129 {
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130 ngx_uint_t i;
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131 ngx_http_variable_t *v;
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132 ngx_http_core_main_conf_t *cmcf;
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133
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134 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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135
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136 v = cmcf->all_variables.elts;
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137 for (i = 0; i < cmcf->all_variables.nelts; i++) {
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138 if (name->len != v[i].name.len
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139 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
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140 {
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141 continue;
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142 }
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143
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144 if (!(v[i].flags & NGX_HTTP_VAR_CHANGABLE)) {
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145 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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146 "the duplicate \"%V\" variable", name);
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147 return NULL;
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148 }
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149
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150 return &v[i];
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151 }
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152
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153 v = ngx_array_push(&cmcf->all_variables);
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154 if (v == NULL) {
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155 return NULL;
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156 }
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157
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158 v->name.len = name->len;
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159 v->name.data = ngx_palloc(cf->pool, name->len);
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160 if (v->name.data == NULL) {
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161 return NULL;
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162 }
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163
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164 for (i = 0; i < name->len; i++) {
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165 v->name.data[i] = ngx_tolower(name->data[i]);
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166 }
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167
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168 v->handler = NULL;
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169 v->data = 0;
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170 v->flags = flags;
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82
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171 v->index = 0;
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172
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173 return v;
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174 }
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175
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176
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177 ngx_int_t
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178 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
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48
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179 {
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50
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180 ngx_uint_t i;
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181 ngx_http_variable_t *v;
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48
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182 ngx_http_core_main_conf_t *cmcf;
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183
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184 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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185
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50
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186 v = cmcf->variables.elts;
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187
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188 if (v == NULL) {
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48
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189 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
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190 sizeof(ngx_http_variable_t)) == NGX_ERROR)
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191 {
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192 return NGX_ERROR;
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48
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193 }
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50
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194
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195 } else {
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196 for (i = 0; i < cmcf->variables.nelts; i++) {
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197 if (name->len != v[i].name.len
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198 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
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199 {
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200 continue;
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201 }
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202
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58
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203 return i;
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50
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204 }
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48
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205 }
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206
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50
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207 v = ngx_array_push(&cmcf->variables);
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208 if (v == NULL) {
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58
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209 return NGX_ERROR;
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48
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210 }
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211
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50
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212 v->name.len = name->len;
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213 v->name.data = ngx_palloc(cf->pool, name->len);
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214 if (v->name.data == NULL) {
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58
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215 return NGX_ERROR;
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50
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216 }
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48
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217
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50
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218 for (i = 0; i < name->len; i++) {
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58
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219 v->name.data[i] = ngx_tolower(name->data[i]);
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50
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220 }
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221
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222 v->handler = NULL;
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223 v->data = 0;
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58
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224 v->flags = 0;
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82
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225 v->index = cmcf->variables.nelts - 1;
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50
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226
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58
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227 return cmcf->variables.nelts - 1;
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48
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228 }
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229
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230
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231 ngx_http_variable_value_t *
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232 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
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233 {
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50
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234 ngx_http_variable_t *v;
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48
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235 ngx_http_core_main_conf_t *cmcf;
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236
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237 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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238
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102
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239 if (cmcf->variables.nelts <= index) {
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48
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240 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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241 "unknown variable index: %d", index);
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242 return NULL;
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243 }
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244
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122
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245 if (r->variables[index].not_found || r->variables[index].valid) {
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246 return &r->variables[index];
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50
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247 }
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48
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248
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50
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249 v = cmcf->variables.elts;
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48
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250
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122
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251 if (v[index].handler(r, &r->variables[index], v[index].data) == NGX_OK) {
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48
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252
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122
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253 if (v[index].flags & NGX_HTTP_VAR_NOCACHABLE) {
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254 r->variables[index].no_cachable = 1;
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48
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255 }
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122
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256
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257 return &r->variables[index];
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48
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258 }
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259
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122
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260 return NULL;
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261 }
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262
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263
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264 ngx_http_variable_value_t *
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265 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
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266 {
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267 ngx_http_variable_value_t *v;
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268
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269 v = &r->variables[index];
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270
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271 if (v->valid) {
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272 if (!v->no_cachable) {
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273 return v;
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274 }
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275
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276 v->valid = 0;
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277 v->not_found = 0;
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58
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278 }
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50
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279
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122
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280 return ngx_http_get_indexed_variable(r, index);
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48
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281 }
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282
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283
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284 ngx_http_variable_value_t *
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285 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name)
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286 {
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287 ngx_uint_t i, key;
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50
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288 ngx_http_variable_t *v;
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122
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289 ngx_http_variable_value_t *vv;
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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_get_module_main_conf(r, ngx_http_core_module);
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293
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58
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294 key = 0;
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295 for (i = 0; i < name->len; i++) {
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296 key += name->data[i];
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48
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297 }
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298
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58
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299 key %= cmcf->variables_hash.hash_size;
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300 v = (ngx_http_variable_t *) cmcf->variables_hash.buckets;
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48
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301
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58
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302 if (v[key].name.len == name->len
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303 && ngx_strncmp(v[key].name.data, name->data, name->len) == 0)
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304 {
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68
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305 if (v[key].flags & NGX_HTTP_VAR_INDEXED) {
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82
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306 return ngx_http_get_indexed_variable(r, v[key].index);
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68
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307
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308 } else {
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48
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309
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122
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310 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
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50
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311
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122
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312 if (vv && v[key].handler(r, vv, v[key].data) == NGX_OK) {
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313 return vv;
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314 }
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58
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315
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122
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316 return NULL;
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317 }
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58
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318 }
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319
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320 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
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321 if (vv == NULL) {
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322 return NULL;
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323 }
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324
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122
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325 if (ngx_strncmp(name->data, "http_", 5) == 0) {
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48
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326
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122
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327 if (ngx_http_variable_unknown_header(r, vv, (uintptr_t) name) == NGX_OK)
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328 {
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329 return vv;
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330 }
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48
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331
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332 return NULL;
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333 }
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334
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122
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335 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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336 "unknown \"%V\" variable", name);
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337
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338 vv->not_found = 1;
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48
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339
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50
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340 return vv;
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48
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341 }
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342
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343
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122
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344 static ngx_int_t
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345 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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346 uintptr_t data)
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347 {
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348 ngx_str_t *s;
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349
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350 s = (ngx_str_t *) ((char *) r + data);
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351
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352 if (s->data) {
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353 v->len = s->len;
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354 v->valid = 1;
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355 v->no_cachable = 0;
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356 v->not_found = 0;
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357 v->data = s->data;
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358
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359 } else {
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360 v->not_found = 1;
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361 }
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362
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363 return NGX_OK;
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364 }
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365
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366
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367 static ngx_int_t
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368 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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369 uintptr_t data)
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64
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370 {
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122
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371 ngx_table_elt_t *h;
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372
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373 h = *(ngx_table_elt_t **) ((char *) r + data);
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374
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375 if (h) {
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376 v->len = h->value.len;
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377 v->valid = 1;
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378 v->no_cachable = 0;
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379 v->not_found = 0;
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380 v->data = h->value.data;
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381
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382 } else {
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383 v->not_found = 1;
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384 }
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385
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386 return NGX_OK;
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387 }
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388
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389
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390 static ngx_int_t
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391 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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392 uintptr_t data)
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393 {
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394 size_t len;
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395 u_char *p;
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396 ngx_uint_t i;
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397 ngx_array_t *a;
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398 ngx_table_elt_t **h;
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64
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399
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400 a = (ngx_array_t *) ((char *) r + data);
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401
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402 if (a->nelts == 0) {
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122
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403 v->not_found = 1;
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404 return NGX_OK;
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64
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405 }
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406
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122
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407 v->valid = 1;
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408 v->no_cachable = 0;
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409 v->not_found = 0;
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64
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410
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411 h = a->elts;
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412
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413 if (a->nelts == 1) {
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122
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414 v->len = (*h)->value.len;
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415 v->data = (*h)->value.data;
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64
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416
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122
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417 return NGX_OK;
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64
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418 }
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419
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122
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420 len = (size_t) - (ssize_t) (sizeof("; ") - 1);
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421
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422 for (i = 0; i < a->nelts; i++) {
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423 len += h[i]->value.len + sizeof("; ") - 1;
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64
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424 }
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425
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122
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426 p = ngx_palloc(r->pool, len);
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427 if (p == NULL) {
|
|
428 return NGX_ERROR;
|
|
429 }
|
|
430
|
|
431 v->len = len;
|
|
432 v->data = p;
|
64
|
433
|
|
434 for (i = 0; /* void */ ; i++) {
|
122
|
435 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
64
|
436
|
|
437 if (i == a->nelts - 1) {
|
|
438 break;
|
|
439 }
|
|
440
|
|
441 *p++ = ';'; *p++ = ' ';
|
|
442 }
|
|
443
|
122
|
444 return NGX_OK;
|
64
|
445 }
|
|
446
|
|
447
|
122
|
448 static ngx_int_t
|
|
449 ngx_http_variable_unknown_header(ngx_http_request_t *r,
|
|
450 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
451 {
|
50
|
452 ngx_str_t *var = (ngx_str_t *) data;
|
|
453
|
122
|
454 u_char ch;
|
|
455 ngx_uint_t i, n;
|
|
456 ngx_list_part_t *part;
|
|
457 ngx_table_elt_t *header;
|
48
|
458
|
|
459 part = &r->headers_in.headers.part;
|
|
460 header = part->elts;
|
|
461
|
|
462 for (i = 0; /* void */ ; i++) {
|
|
463
|
|
464 if (i >= part->nelts) {
|
|
465 if (part->next == NULL) {
|
|
466 break;
|
|
467 }
|
|
468
|
|
469 part = part->next;
|
|
470 header = part->elts;
|
|
471 i = 0;
|
|
472 }
|
|
473
|
58
|
474 for (n = 0; n + 5 < var->len && n < header[i].key.len; n++) {
|
48
|
475 ch = header[i].key.data[n];
|
|
476
|
58
|
477 if (ch >= 'A' && ch <= 'Z') {
|
|
478 ch |= 0x20;
|
48
|
479
|
|
480 } else if (ch == '-') {
|
|
481 ch = '_';
|
|
482 }
|
|
483
|
|
484 if (var->data[n + 5] != ch) {
|
|
485 break;
|
|
486 }
|
|
487 }
|
|
488
|
|
489 if (n + 5 == var->len) {
|
122
|
490 v->len = header[i].value.len;
|
|
491 v->valid = 1;
|
|
492 v->no_cachable = 0;
|
|
493 v->not_found = 0;
|
|
494 v->data = header[i].value.data;
|
48
|
495
|
122
|
496 return NGX_OK;
|
48
|
497 }
|
|
498 }
|
|
499
|
122
|
500 v->not_found = 1;
|
|
501
|
|
502 return NGX_OK;
|
58
|
503 }
|
|
504
|
|
505
|
122
|
506 static ngx_int_t
|
|
507 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
508 uintptr_t data)
|
58
|
509 {
|
122
|
510 if (r->headers_in.host) {
|
|
511 v->len = r->headers_in.host_name_len;
|
|
512 v->data = r->headers_in.host->value.data;
|
58
|
513
|
122
|
514 } else {
|
|
515 v->len = r->server_name.len;
|
|
516 v->data = r->server_name.data;
|
58
|
517 }
|
|
518
|
122
|
519 v->valid = 1;
|
|
520 v->no_cachable = 0;
|
|
521 v->not_found = 0;
|
58
|
522
|
122
|
523 return NGX_OK;
|
48
|
524 }
|
|
525
|
|
526
|
122
|
527 static ngx_int_t
|
|
528 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
529 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
530 {
|
122
|
531 v->len = r->connection->addr_text.len;
|
|
532 v->valid = 1;
|
|
533 v->no_cachable = 0;
|
|
534 v->not_found = 0;
|
|
535 v->data = r->connection->addr_text.data;
|
48
|
536
|
122
|
537 return NGX_OK;
|
48
|
538 }
|
|
539
|
|
540
|
122
|
541 static ngx_int_t
|
|
542 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
543 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
544 {
|
122
|
545 ngx_uint_t port;
|
|
546 struct sockaddr_in *sin;
|
58
|
547
|
122
|
548 v->len = 0;
|
|
549 v->valid = 1;
|
|
550 v->no_cachable = 0;
|
|
551 v->not_found = 0;
|
58
|
552
|
122
|
553 v->data = ngx_palloc(r->pool, sizeof("65535") - 1);
|
|
554 if (v->data == NULL) {
|
|
555 return NGX_ERROR;
|
58
|
556 }
|
|
557
|
|
558 /* AF_INET only */
|
|
559
|
|
560 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
561 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
562
|
|
563 port = ntohs(sin->sin_port);
|
|
564
|
|
565 if (port > 0 && port < 65536) {
|
122
|
566 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
58
|
567 }
|
|
568 }
|
|
569
|
122
|
570 return NGX_OK;
|
58
|
571 }
|
|
572
|
|
573
|
122
|
574 static ngx_int_t
|
|
575 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
576 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
577 {
|
122
|
578 socklen_t len;
|
|
579 ngx_connection_t *c;
|
|
580 struct sockaddr_in sin;
|
48
|
581
|
122
|
582 v->data = ngx_palloc(r->pool, INET_ADDRSTRLEN);
|
|
583 if (v->data == NULL) {
|
|
584 return NGX_ERROR;
|
58
|
585 }
|
|
586
|
|
587 c = r->connection;
|
|
588
|
|
589 if (r->in_addr == 0) {
|
|
590 len = sizeof(struct sockaddr_in);
|
|
591 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
|
|
592 ngx_log_error(NGX_LOG_CRIT, c->log,
|
|
593 ngx_socket_errno, "getsockname() failed");
|
122
|
594 return NGX_ERROR;
|
58
|
595 }
|
|
596
|
|
597 r->in_addr = sin.sin_addr.s_addr;
|
|
598 }
|
|
599
|
122
|
600 v->len = ngx_inet_ntop(c->listening->family, &r->in_addr,
|
|
601 v->data, INET_ADDRSTRLEN);
|
|
602 v->valid = 1;
|
|
603 v->no_cachable = 0;
|
|
604 v->not_found = 0;
|
48
|
605
|
122
|
606 return NGX_OK;
|
48
|
607 }
|
|
608
|
|
609
|
122
|
610 static ngx_int_t
|
|
611 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
612 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
613 {
|
122
|
614 v->len = r->port_text->len - 1;
|
|
615 v->valid = 1;
|
|
616 v->no_cachable = 0;
|
|
617 v->not_found = 0;
|
|
618 v->data = r->port_text->data + 1;
|
58
|
619
|
122
|
620 return NGX_OK;
|
58
|
621 }
|
|
622
|
|
623
|
122
|
624 static ngx_int_t
|
|
625 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
626 ngx_http_variable_value_t *v, uintptr_t data)
|
48
|
627 {
|
122
|
628 ngx_http_core_loc_conf_t *clcf;
|
58
|
629
|
|
630 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
631
|
122
|
632 v->len = clcf->root.len;
|
|
633 v->valid = 1;
|
|
634 v->no_cachable = 0;
|
|
635 v->not_found = 0;
|
|
636 v->data = clcf->root.data;
|
58
|
637
|
122
|
638 return NGX_OK;
|
58
|
639 }
|
|
640
|
|
641
|
122
|
642 static ngx_int_t
|
|
643 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
644 ngx_http_variable_value_t *v, uintptr_t data)
|
58
|
645 {
|
122
|
646 ngx_str_t path;
|
48
|
647
|
122
|
648 if (ngx_http_map_uri_to_path(r, &path, 0) == NULL) {
|
|
649 return NGX_ERROR;
|
106
|
650 }
|
58
|
651
|
106
|
652 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
58
|
653
|
122
|
654 v->len = path.len - 1;
|
|
655 v->valid = 1;
|
|
656 v->no_cachable = 0;
|
|
657 v->not_found = 0;
|
|
658 v->data = path.data;
|
48
|
659
|
122
|
660 return NGX_OK;
|
48
|
661 }
|
|
662
|
|
663
|
122
|
664 static ngx_int_t
|
|
665 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
666 ngx_http_variable_value_t *v, uintptr_t data)
|
110
|
667 {
|
122
|
668 if (r->method_name.data) {
|
|
669 if (r->upstream && r->upstream->method.len) {
|
|
670 v->len = r->upstream->method.len;
|
|
671 v->data = r->upstream->method.data;
|
110
|
672
|
122
|
673 } else {
|
|
674 v->len = r->method_name.len;
|
|
675 v->data = r->method_name.data;
|
|
676 }
|
|
677
|
|
678 v->valid = 1;
|
|
679 v->no_cachable = 0;
|
|
680 v->not_found = 0;
|
|
681
|
|
682 } else {
|
|
683 v->not_found = 1;
|
110
|
684 }
|
|
685
|
122
|
686 return NGX_OK;
|
110
|
687 }
|
|
688
|
|
689
|
122
|
690 static ngx_int_t
|
|
691 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
692 ngx_http_variable_value_t *v, uintptr_t data)
|
88
|
693 {
|
122
|
694 ngx_int_t rc;
|
88
|
695
|
|
696 rc = ngx_http_auth_basic_user(r);
|
|
697
|
|
698 if (rc == NGX_DECLINED) {
|
122
|
699 v->not_found = 1;
|
|
700 return NGX_OK;
|
88
|
701 }
|
|
702
|
|
703 if (rc == NGX_ERROR) {
|
122
|
704 return NGX_ERROR;
|
88
|
705 }
|
|
706
|
122
|
707 v->len = r->headers_in.user.len;
|
|
708 v->valid = 1;
|
|
709 v->no_cachable = 0;
|
|
710 v->not_found = 0;
|
|
711 v->data = r->headers_in.user.data;
|
120
|
712
|
122
|
713 return NGX_OK;
|
120
|
714 }
|
|
715
|
|
716
|
48
|
717 ngx_int_t
|
58
|
718 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
48
|
719 {
|
58
|
720 ngx_http_variable_t *v, *cv;
|
50
|
721 ngx_http_core_main_conf_t *cmcf;
|
48
|
722
|
58
|
723 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
724
|
|
725 if (ngx_array_init(&cmcf->all_variables, cf->pool, 32,
|
118
|
726 sizeof(ngx_http_variable_t))
|
|
727 == NGX_ERROR)
|
58
|
728 {
|
48
|
729 return NGX_ERROR;
|
|
730 }
|
|
731
|
50
|
732 for (cv = ngx_http_core_variables; cv->name.len; cv++) {
|
58
|
733 v = ngx_array_push(&cmcf->all_variables);
|
|
734 if (v == NULL) {
|
48
|
735 return NGX_ERROR;
|
|
736 }
|
|
737
|
58
|
738 *v = *cv;
|
48
|
739 }
|
|
740
|
|
741 return NGX_OK;
|
|
742 }
|
58
|
743
|
|
744
|
|
745 ngx_int_t
|
|
746 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
747 {
|
|
748 ngx_uint_t i, n;
|
|
749 ngx_http_variable_t *v, *av;
|
|
750 ngx_http_core_main_conf_t *cmcf;
|
|
751
|
|
752 /* set the handlers for the indexed http variables */
|
|
753
|
|
754 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
755
|
|
756 v = cmcf->variables.elts;
|
|
757 av = cmcf->all_variables.elts;
|
|
758
|
|
759 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
760
|
|
761 for (n = 0; n < cmcf->all_variables.nelts; n++) {
|
|
762
|
|
763 if (v[i].name.len == av[n].name.len
|
|
764 && ngx_strncmp(v[i].name.data, av[n].name.data, v[i].name.len)
|
|
765 == 0)
|
|
766 {
|
|
767 v[i].handler = av[n].handler;
|
|
768 v[i].data = av[n].data;
|
76
|
769
|
|
770 av[n].flags |= NGX_HTTP_VAR_INDEXED;
|
|
771 v[i].flags = av[n].flags;
|
58
|
772
|
82
|
773 av[n].index = i;
|
|
774
|
58
|
775 goto next;
|
|
776 }
|
|
777 }
|
|
778
|
|
779 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
|
780 v[i].handler = ngx_http_variable_unknown_header;
|
|
781 v[i].data = (uintptr_t) &v[i].name;
|
|
782
|
|
783 continue;
|
|
784 }
|
|
785
|
|
786 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
787 "unknown \"%V\" variable", &v[i].name);
|
|
788
|
|
789 return NGX_ERROR;
|
|
790
|
|
791 next:
|
|
792 continue;
|
|
793 }
|
|
794
|
|
795 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
796 "http variables: %ui", cmcf->variables.nelts);
|
|
797
|
|
798
|
|
799 /* init the all http variables hash */
|
|
800
|
|
801 cmcf->variables_hash.max_size = 500;
|
|
802 cmcf->variables_hash.bucket_limit = 1;
|
|
803 cmcf->variables_hash.bucket_size = sizeof(ngx_http_variable_t);
|
|
804 cmcf->variables_hash.name = "http variables";
|
|
805
|
|
806 if (ngx_hash_init(&cmcf->variables_hash, cf->pool,
|
|
807 cmcf->all_variables.elts, cmcf->all_variables.nelts) != NGX_OK)
|
|
808 {
|
|
809 return NGX_ERROR;
|
|
810 }
|
|
811
|
|
812 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
813 "http variables hash size: %ui for %ui values, "
|
|
814 "max buckets per entry: %ui",
|
|
815 cmcf->variables_hash.hash_size, cmcf->all_variables.nelts,
|
|
816 cmcf->variables_hash.min_buckets);
|
|
817
|
|
818 return NGX_OK;
|
|
819 }
|