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48
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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322
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10 #include <nginx.h>
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48
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11
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12
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122
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13 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r,
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14 ngx_http_variable_value_t *v, uintptr_t data);
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324
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15 static void ngx_http_variable_request_set(ngx_http_request_t *r,
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16 ngx_http_variable_value_t *v, uintptr_t data);
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186
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17 static void ngx_http_variable_request_set_size(ngx_http_request_t *r,
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18 ngx_http_variable_value_t *v, uintptr_t data);
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122
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19 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
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20 ngx_http_variable_value_t *v, uintptr_t data);
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21 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r,
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22 ngx_http_variable_value_t *v, uintptr_t data);
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126
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23
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24 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
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122
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25 ngx_http_variable_value_t *v, uintptr_t data);
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126
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26 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
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27 ngx_http_variable_value_t *v, uintptr_t data);
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424
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28 static ngx_int_t ngx_http_variable_cookie(ngx_http_request_t *r,
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29 ngx_http_variable_value_t *v, uintptr_t data);
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392
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30 static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r,
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31 ngx_http_variable_value_t *v, uintptr_t data);
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126
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32
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122
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33 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
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34 ngx_http_variable_value_t *v, uintptr_t data);
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272
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35 static ngx_int_t ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
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36 ngx_http_variable_value_t *v, uintptr_t data);
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122
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37 static ngx_int_t ngx_http_variable_remote_addr(ngx_http_request_t *r,
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38 ngx_http_variable_value_t *v, uintptr_t data);
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39 static ngx_int_t ngx_http_variable_remote_port(ngx_http_request_t *r,
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40 ngx_http_variable_value_t *v, uintptr_t data);
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41 static ngx_int_t ngx_http_variable_server_addr(ngx_http_request_t *r,
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42 ngx_http_variable_value_t *v, uintptr_t data);
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43 static ngx_int_t ngx_http_variable_server_port(ngx_http_request_t *r,
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44 ngx_http_variable_value_t *v, uintptr_t data);
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238
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45 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r,
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46 ngx_http_variable_value_t *v, uintptr_t data);
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324
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47 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r,
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48 ngx_http_variable_value_t *v, uintptr_t data);
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122
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49 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r,
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50 ngx_http_variable_value_t *v, uintptr_t data);
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412
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51 static ngx_int_t ngx_http_variable_realpath_root(ngx_http_request_t *r,
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52 ngx_http_variable_value_t *v, uintptr_t data);
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122
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53 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r,
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54 ngx_http_variable_value_t *v, uintptr_t data);
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362
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55 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r,
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56 ngx_http_variable_value_t *v, uintptr_t data);
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122
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57 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r,
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58 ngx_http_variable_value_t *v, uintptr_t data);
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59 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r,
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60 ngx_http_variable_value_t *v, uintptr_t data);
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160
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61 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
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62 ngx_http_variable_value_t *v, uintptr_t data);
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178
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63 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r,
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64 ngx_http_variable_value_t *v, uintptr_t data);
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244
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65 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r,
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66 ngx_http_variable_value_t *v, uintptr_t data);
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48
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67
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190
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68 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r,
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69 ngx_http_variable_value_t *v, uintptr_t data);
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70 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r,
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71 ngx_http_variable_value_t *v, uintptr_t data);
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72 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
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73 ngx_http_variable_value_t *v, uintptr_t data);
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74 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r,
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75 ngx_http_variable_value_t *v, uintptr_t data);
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76 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
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77 ngx_http_variable_value_t *v, uintptr_t data);
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78 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
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79 ngx_http_variable_value_t *v, uintptr_t data);
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80
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322
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81 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r,
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82 ngx_http_variable_value_t *v, uintptr_t data);
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376
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83 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r,
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84 ngx_http_variable_value_t *v, uintptr_t data);
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410
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85 static ngx_int_t ngx_http_variable_pid(ngx_http_request_t *r,
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86 ngx_http_variable_value_t *v, uintptr_t data);
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48
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87
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58
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88 /*
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89 * TODO:
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90 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
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91 * REMOTE_HOST (null), REMOTE_IDENT (null),
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92 * SERVER_SOFTWARE
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93 *
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120
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94 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
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58
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95 */
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48
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96
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190
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97 /*
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98 * the $http_host, $http_user_agent, $http_referer, $http_via,
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99 * and $http_x_forwarded_for variables may be handled by generic
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100 * ngx_http_variable_unknown_header_in(), but for perfomance reasons
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101 * they are handled using dedicated entries
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102 */
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103
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58
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104 static ngx_http_variable_t ngx_http_core_variables[] = {
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105
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186
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106 { ngx_string("http_host"), NULL, ngx_http_variable_header,
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82
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107 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
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48
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108
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186
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109 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header,
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82
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110 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
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58
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111
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186
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112 { ngx_string("http_referer"), NULL, ngx_http_variable_header,
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82
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113 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
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48
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114
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115 #if (NGX_HTTP_GZIP)
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186
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116 { ngx_string("http_via"), NULL, ngx_http_variable_header,
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82
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117 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
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48
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118 #endif
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119
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286
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120 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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186
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121 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header,
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82
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122 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
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48
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123 #endif
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124
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186
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125 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers,
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82
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126 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
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64
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127
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186
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128 { ngx_string("content_length"), NULL, ngx_http_variable_header,
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82
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129 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
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58
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130
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186
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131 { ngx_string("content_type"), NULL, ngx_http_variable_header,
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82
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132 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
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58
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133
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186
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134 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 },
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58
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135
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272
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136 { ngx_string("binary_remote_addr"), NULL,
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137 ngx_http_variable_binary_remote_addr, 0, 0, 0 },
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138
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186
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139 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 },
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48
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140
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186
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141 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 },
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58
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142
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186
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143 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 },
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58
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144
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186
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145 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 },
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58
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146
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186
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147 { ngx_string("server_protocol"), NULL, ngx_http_variable_request,
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82
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148 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
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58
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149
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238
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150 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 },
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151
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186
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152 { ngx_string("request_uri"), NULL, ngx_http_variable_request,
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82
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153 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
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48
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154
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186
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155 { ngx_string("uri"), NULL, ngx_http_variable_request,
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156 offsetof(ngx_http_request_t, uri),
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340
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157 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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186
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158
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159 { ngx_string("document_uri"), NULL, ngx_http_variable_request,
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122
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160 offsetof(ngx_http_request_t, uri),
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340
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161 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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122
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162
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186
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163 { ngx_string("request"), NULL, ngx_http_variable_request,
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118
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164 offsetof(ngx_http_request_t, request_line), 0, 0 },
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165
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186
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166 { ngx_string("document_root"), NULL,
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340
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167 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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168
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412
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169 { ngx_string("realpath_root"), NULL,
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170 ngx_http_variable_realpath_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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171
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186
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172 { ngx_string("query_string"), NULL, ngx_http_variable_request,
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58
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173 offsetof(ngx_http_request_t, args),
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340
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174 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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48
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175
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324
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176 { ngx_string("args"),
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177 ngx_http_variable_request_set,
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178 ngx_http_variable_request,
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138
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179 offsetof(ngx_http_request_t, args),
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340
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180 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
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324
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181
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182 { ngx_string("is_args"), NULL, ngx_http_variable_is_args,
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340
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183 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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138
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184
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186
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185 { ngx_string("request_filename"), NULL,
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186 ngx_http_variable_request_filename, 0,
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340
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187 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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188
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362
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189 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 },
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58
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190
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186
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191 { ngx_string("request_method"), NULL,
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192 ngx_http_variable_request_method, 0, 0, 0 },
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58
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193
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186
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194 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 },
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58
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195
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186
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196 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent,
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160
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197 0, 0, 0 },
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198
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186
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199 { ngx_string("request_completion"), NULL,
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200 ngx_http_variable_request_completion,
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178
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201 0, 0, 0 },
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202
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244
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203 { ngx_string("request_body_file"), NULL,
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204 ngx_http_variable_request_body_file,
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205 0, 0, 0 },
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206
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190
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207 { ngx_string("sent_http_content_type"), NULL,
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208 ngx_http_variable_sent_content_type, 0, 0, 0 },
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209
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210 { ngx_string("sent_http_content_length"), NULL,
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211 ngx_http_variable_sent_content_length, 0, 0, 0 },
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212
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213 { ngx_string("sent_http_last_modified"), NULL,
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214 ngx_http_variable_sent_last_modified, 0, 0, 0 },
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215
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216 { ngx_string("sent_http_connection"), NULL,
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217 ngx_http_variable_sent_connection, 0, 0, 0 },
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218
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219 { ngx_string("sent_http_keep_alive"), NULL,
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220 ngx_http_variable_sent_keep_alive, 0, 0, 0 },
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221
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222 { ngx_string("sent_http_transfer_encoding"), NULL,
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223 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 },
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224
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225 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers,
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226 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 },
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227
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186
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228 { ngx_string("limit_rate"), ngx_http_variable_request_set_size,
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229 ngx_http_variable_request,
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230 offsetof(ngx_http_request_t, limit_rate),
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340
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231 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
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186
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232
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322
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233 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version,
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234 0, 0, 0 },
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235
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376
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236 { ngx_string("hostname"), NULL, ngx_http_variable_hostname,
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237 0, 0, 0 },
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238
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410
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239 { ngx_string("pid"), NULL, ngx_http_variable_pid,
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240 0, 0, 0 },
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241
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186
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242 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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48
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243 };
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244
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245
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126
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246 ngx_http_variable_value_t ngx_http_variable_null_value =
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247 ngx_http_variable("");
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248 ngx_http_variable_value_t ngx_http_variable_true_value =
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249 ngx_http_variable("1");
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250
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251
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48
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252 ngx_http_variable_t *
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58
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253 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
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254 {
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160
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255 ngx_int_t rc;
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58
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256 ngx_uint_t i;
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160
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257 ngx_hash_key_t *key;
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58
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258 ngx_http_variable_t *v;
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259 ngx_http_core_main_conf_t *cmcf;
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260
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261 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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262
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160
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263 key = cmcf->variables_keys->keys.elts;
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264 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) {
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265 if (name->len != key[i].key.len
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266 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0)
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58
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267 {
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268 continue;
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269 }
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270
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160
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271 v = key[i].value;
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272
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340
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273 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) {
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58
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274 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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275 "the duplicate \"%V\" variable", name);
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276 return NULL;
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277 }
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278
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160
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279 return v;
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58
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280 }
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281
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160
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282 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t));
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58
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283 if (v == NULL) {
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284 return NULL;
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285 }
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286
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287 v->name.len = name->len;
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382
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288 v->name.data = ngx_pnalloc(cf->pool, name->len);
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58
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289 if (v->name.data == NULL) {
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290 return NULL;
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291 }
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292
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392
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293 ngx_strlow(v->name.data, name->data, name->len);
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58
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294
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186
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295 v->set_handler = NULL;
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296 v->get_handler = NULL;
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58
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297 v->data = 0;
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298 v->flags = flags;
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82
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299 v->index = 0;
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58
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300
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160
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301 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
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302
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303 if (rc == NGX_ERROR) {
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304 return NULL;
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|
305 }
|
|
|
306
|
|
|
307 if (rc == NGX_BUSY) {
|
|
|
308 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
309 "conflicting variable name \"%V\"", name);
|
|
|
310 return NULL;
|
|
|
311 }
|
|
|
312
|
|
58
|
313 return v;
|
|
|
314 }
|
|
|
315
|
|
|
316
|
|
|
317 ngx_int_t
|
|
|
318 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
|
|
48
|
319 {
|
|
50
|
320 ngx_uint_t i;
|
|
|
321 ngx_http_variable_t *v;
|
|
48
|
322 ngx_http_core_main_conf_t *cmcf;
|
|
|
323
|
|
|
324 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
325
|
|
50
|
326 v = cmcf->variables.elts;
|
|
|
327
|
|
|
328 if (v == NULL) {
|
|
48
|
329 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
|
|
|
330 sizeof(ngx_http_variable_t)) == NGX_ERROR)
|
|
|
331 {
|
|
58
|
332 return NGX_ERROR;
|
|
48
|
333 }
|
|
50
|
334
|
|
|
335 } else {
|
|
|
336 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
337 if (name->len != v[i].name.len
|
|
|
338 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
|
|
|
339 {
|
|
|
340 continue;
|
|
|
341 }
|
|
|
342
|
|
58
|
343 return i;
|
|
50
|
344 }
|
|
48
|
345 }
|
|
|
346
|
|
50
|
347 v = ngx_array_push(&cmcf->variables);
|
|
|
348 if (v == NULL) {
|
|
58
|
349 return NGX_ERROR;
|
|
48
|
350 }
|
|
|
351
|
|
50
|
352 v->name.len = name->len;
|
|
382
|
353 v->name.data = ngx_pnalloc(cf->pool, name->len);
|
|
50
|
354 if (v->name.data == NULL) {
|
|
58
|
355 return NGX_ERROR;
|
|
50
|
356 }
|
|
48
|
357
|
|
392
|
358 ngx_strlow(v->name.data, name->data, name->len);
|
|
50
|
359
|
|
186
|
360 v->set_handler = NULL;
|
|
|
361 v->get_handler = NULL;
|
|
50
|
362 v->data = 0;
|
|
58
|
363 v->flags = 0;
|
|
82
|
364 v->index = cmcf->variables.nelts - 1;
|
|
50
|
365
|
|
58
|
366 return cmcf->variables.nelts - 1;
|
|
48
|
367 }
|
|
|
368
|
|
|
369
|
|
|
370 ngx_http_variable_value_t *
|
|
|
371 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
|
372 {
|
|
50
|
373 ngx_http_variable_t *v;
|
|
48
|
374 ngx_http_core_main_conf_t *cmcf;
|
|
|
375
|
|
|
376 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
377
|
|
102
|
378 if (cmcf->variables.nelts <= index) {
|
|
48
|
379 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
380 "unknown variable index: %d", index);
|
|
|
381 return NULL;
|
|
|
382 }
|
|
|
383
|
|
122
|
384 if (r->variables[index].not_found || r->variables[index].valid) {
|
|
|
385 return &r->variables[index];
|
|
50
|
386 }
|
|
48
|
387
|
|
50
|
388 v = cmcf->variables.elts;
|
|
48
|
389
|
|
186
|
390 if (v[index].get_handler(r, &r->variables[index], v[index].data)
|
|
|
391 == NGX_OK)
|
|
|
392 {
|
|
340
|
393 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) {
|
|
|
394 r->variables[index].no_cacheable = 1;
|
|
48
|
395 }
|
|
122
|
396
|
|
|
397 return &r->variables[index];
|
|
48
|
398 }
|
|
|
399
|
|
206
|
400 r->variables[index].valid = 0;
|
|
|
401 r->variables[index].not_found = 1;
|
|
|
402
|
|
122
|
403 return NULL;
|
|
|
404 }
|
|
|
405
|
|
|
406
|
|
|
407 ngx_http_variable_value_t *
|
|
|
408 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
|
409 {
|
|
294
|
410 ngx_http_variable_value_t *v;
|
|
122
|
411
|
|
|
412 v = &r->variables[index];
|
|
|
413
|
|
|
414 if (v->valid) {
|
|
340
|
415 if (!v->no_cacheable) {
|
|
122
|
416 return v;
|
|
|
417 }
|
|
|
418
|
|
|
419 v->valid = 0;
|
|
|
420 v->not_found = 0;
|
|
58
|
421 }
|
|
50
|
422
|
|
122
|
423 return ngx_http_get_indexed_variable(r, index);
|
|
48
|
424 }
|
|
|
425
|
|
|
426
|
|
|
427 ngx_http_variable_value_t *
|
|
184
|
428 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key,
|
|
|
429 ngx_uint_t nowarn)
|
|
48
|
430 {
|
|
50
|
431 ngx_http_variable_t *v;
|
|
122
|
432 ngx_http_variable_value_t *vv;
|
|
48
|
433 ngx_http_core_main_conf_t *cmcf;
|
|
|
434
|
|
|
435 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
436
|
|
160
|
437 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len);
|
|
48
|
438
|
|
160
|
439 if (v) {
|
|
|
440 if (v->flags & NGX_HTTP_VAR_INDEXED) {
|
|
|
441 return ngx_http_get_indexed_variable(r, v->index);
|
|
68
|
442
|
|
|
443 } else {
|
|
48
|
444
|
|
122
|
445 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
50
|
446
|
|
186
|
447 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) {
|
|
122
|
448 return vv;
|
|
|
449 }
|
|
58
|
450
|
|
122
|
451 return NULL;
|
|
|
452 }
|
|
58
|
453 }
|
|
|
454
|
|
|
455 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
456 if (vv == NULL) {
|
|
|
457 return NULL;
|
|
|
458 }
|
|
|
459
|
|
122
|
460 if (ngx_strncmp(name->data, "http_", 5) == 0) {
|
|
48
|
461
|
|
126
|
462 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name)
|
|
|
463 == NGX_OK)
|
|
|
464 {
|
|
|
465 return vv;
|
|
|
466 }
|
|
|
467
|
|
|
468 return NULL;
|
|
|
469 }
|
|
|
470
|
|
|
471 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) {
|
|
|
472
|
|
|
473 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name)
|
|
|
474 == NGX_OK)
|
|
122
|
475 {
|
|
|
476 return vv;
|
|
|
477 }
|
|
48
|
478
|
|
|
479 return NULL;
|
|
|
480 }
|
|
|
481
|
|
296
|
482 if (ngx_strncmp(name->data, "upstream_http_", 10) == 0) {
|
|
|
483
|
|
|
484 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name)
|
|
|
485 == NGX_OK)
|
|
|
486 {
|
|
|
487 return vv;
|
|
|
488 }
|
|
|
489
|
|
|
490 return NULL;
|
|
|
491 }
|
|
|
492
|
|
420
|
493 if (ngx_strncmp(name->data, "cookie_", 7) == 0) {
|
|
|
494
|
|
424
|
495 if (ngx_http_variable_cookie(r, vv, (uintptr_t) name) == NGX_OK) {
|
|
420
|
496 return vv;
|
|
|
497 }
|
|
|
498
|
|
|
499 return NULL;
|
|
|
500 }
|
|
|
501
|
|
392
|
502 if (ngx_strncmp(name->data, "arg_", 4) == 0) {
|
|
|
503
|
|
|
504 if (ngx_http_variable_argument(r, vv, (uintptr_t) name) == NGX_OK) {
|
|
|
505 return vv;
|
|
|
506 }
|
|
|
507
|
|
|
508 return NULL;
|
|
|
509 }
|
|
|
510
|
|
184
|
511 vv->not_found = 1;
|
|
122
|
512
|
|
184
|
513 if (nowarn == 0) {
|
|
|
514 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
515 "unknown \"%V\" variable", name);
|
|
|
516 }
|
|
48
|
517
|
|
50
|
518 return vv;
|
|
48
|
519 }
|
|
|
520
|
|
|
521
|
|
122
|
522 static ngx_int_t
|
|
|
523 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
524 uintptr_t data)
|
|
|
525 {
|
|
|
526 ngx_str_t *s;
|
|
|
527
|
|
|
528 s = (ngx_str_t *) ((char *) r + data);
|
|
|
529
|
|
|
530 if (s->data) {
|
|
|
531 v->len = s->len;
|
|
|
532 v->valid = 1;
|
|
340
|
533 v->no_cacheable = 0;
|
|
122
|
534 v->not_found = 0;
|
|
|
535 v->data = s->data;
|
|
|
536
|
|
|
537 } else {
|
|
|
538 v->not_found = 1;
|
|
|
539 }
|
|
|
540
|
|
|
541 return NGX_OK;
|
|
|
542 }
|
|
|
543
|
|
|
544
|
|
186
|
545 static void
|
|
324
|
546 ngx_http_variable_request_set(ngx_http_request_t *r,
|
|
|
547 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
548 {
|
|
|
549 ngx_str_t *s;
|
|
|
550
|
|
|
551 s = (ngx_str_t *) ((char *) r + data);
|
|
|
552
|
|
|
553 s->len = v->len;
|
|
|
554 s->data = v->data;
|
|
|
555 }
|
|
|
556
|
|
|
557
|
|
|
558 static void
|
|
186
|
559 ngx_http_variable_request_set_size(ngx_http_request_t *r,
|
|
|
560 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
561 {
|
|
|
562 ssize_t s, *sp;
|
|
|
563 ngx_str_t val;
|
|
|
564
|
|
320
|
565 val.len = v->len;
|
|
186
|
566 val.data = v->data;
|
|
|
567
|
|
|
568 s = ngx_parse_size(&val);
|
|
|
569
|
|
|
570 if (s == NGX_ERROR) {
|
|
|
571 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
572 "invalid size \"%V\"", &val);
|
|
|
573 return;
|
|
|
574 }
|
|
|
575
|
|
|
576 sp = (ssize_t *) ((char *) r + data);
|
|
|
577
|
|
|
578 *sp = s;
|
|
|
579
|
|
|
580 return;
|
|
|
581 }
|
|
|
582
|
|
|
583
|
|
122
|
584 static ngx_int_t
|
|
|
585 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
586 uintptr_t data)
|
|
64
|
587 {
|
|
122
|
588 ngx_table_elt_t *h;
|
|
|
589
|
|
|
590 h = *(ngx_table_elt_t **) ((char *) r + data);
|
|
|
591
|
|
|
592 if (h) {
|
|
|
593 v->len = h->value.len;
|
|
|
594 v->valid = 1;
|
|
340
|
595 v->no_cacheable = 0;
|
|
122
|
596 v->not_found = 0;
|
|
|
597 v->data = h->value.data;
|
|
|
598
|
|
|
599 } else {
|
|
|
600 v->not_found = 1;
|
|
|
601 }
|
|
|
602
|
|
|
603 return NGX_OK;
|
|
|
604 }
|
|
|
605
|
|
|
606
|
|
|
607 static ngx_int_t
|
|
|
608 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
609 uintptr_t data)
|
|
|
610 {
|
|
216
|
611 ssize_t len;
|
|
122
|
612 u_char *p;
|
|
216
|
613 ngx_uint_t i, n;
|
|
122
|
614 ngx_array_t *a;
|
|
|
615 ngx_table_elt_t **h;
|
|
64
|
616
|
|
|
617 a = (ngx_array_t *) ((char *) r + data);
|
|
|
618
|
|
216
|
619 n = a->nelts;
|
|
|
620
|
|
|
621 if (n == 0) {
|
|
122
|
622 v->not_found = 1;
|
|
|
623 return NGX_OK;
|
|
64
|
624 }
|
|
|
625
|
|
122
|
626 v->valid = 1;
|
|
340
|
627 v->no_cacheable = 0;
|
|
122
|
628 v->not_found = 0;
|
|
64
|
629
|
|
|
630 h = a->elts;
|
|
|
631
|
|
216
|
632 if (n == 1) {
|
|
122
|
633 v->len = (*h)->value.len;
|
|
|
634 v->data = (*h)->value.data;
|
|
64
|
635
|
|
122
|
636 return NGX_OK;
|
|
64
|
637 }
|
|
|
638
|
|
216
|
639 len = - (ssize_t) (sizeof("; ") - 1);
|
|
122
|
640
|
|
216
|
641 for (i = 0; i < n; i++) {
|
|
122
|
642 len += h[i]->value.len + sizeof("; ") - 1;
|
|
64
|
643 }
|
|
|
644
|
|
382
|
645 p = ngx_pnalloc(r->pool, len);
|
|
122
|
646 if (p == NULL) {
|
|
|
647 return NGX_ERROR;
|
|
|
648 }
|
|
|
649
|
|
|
650 v->len = len;
|
|
|
651 v->data = p;
|
|
64
|
652
|
|
|
653 for (i = 0; /* void */ ; i++) {
|
|
122
|
654 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
|
64
|
655
|
|
216
|
656 if (i == n - 1) {
|
|
64
|
657 break;
|
|
|
658 }
|
|
|
659
|
|
|
660 *p++ = ';'; *p++ = ' ';
|
|
|
661 }
|
|
|
662
|
|
122
|
663 return NGX_OK;
|
|
64
|
664 }
|
|
|
665
|
|
|
666
|
|
122
|
667 static ngx_int_t
|
|
126
|
668 ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
|
669 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
670 {
|
|
|
671 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
672 &r->headers_in.headers.part,
|
|
|
673 sizeof("http_") - 1);
|
|
|
674 }
|
|
|
675
|
|
|
676
|
|
|
677 static ngx_int_t
|
|
|
678 ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
|
122
|
679 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
680 {
|
|
126
|
681 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
682 &r->headers_out.headers.part,
|
|
|
683 sizeof("sent_http_") - 1);
|
|
|
684 }
|
|
50
|
685
|
|
126
|
686
|
|
296
|
687 ngx_int_t
|
|
126
|
688 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var,
|
|
|
689 ngx_list_part_t *part, size_t prefix)
|
|
|
690 {
|
|
122
|
691 u_char ch;
|
|
|
692 ngx_uint_t i, n;
|
|
|
693 ngx_table_elt_t *header;
|
|
48
|
694
|
|
|
695 header = part->elts;
|
|
|
696
|
|
|
697 for (i = 0; /* void */ ; i++) {
|
|
|
698
|
|
|
699 if (i >= part->nelts) {
|
|
|
700 if (part->next == NULL) {
|
|
|
701 break;
|
|
|
702 }
|
|
|
703
|
|
|
704 part = part->next;
|
|
|
705 header = part->elts;
|
|
|
706 i = 0;
|
|
|
707 }
|
|
|
708
|
|
126
|
709 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) {
|
|
48
|
710 ch = header[i].key.data[n];
|
|
|
711
|
|
58
|
712 if (ch >= 'A' && ch <= 'Z') {
|
|
|
713 ch |= 0x20;
|
|
48
|
714
|
|
|
715 } else if (ch == '-') {
|
|
|
716 ch = '_';
|
|
|
717 }
|
|
|
718
|
|
126
|
719 if (var->data[n + prefix] != ch) {
|
|
48
|
720 break;
|
|
|
721 }
|
|
|
722 }
|
|
|
723
|
|
242
|
724 if (n + prefix == var->len && n == header[i].key.len) {
|
|
122
|
725 v->len = header[i].value.len;
|
|
|
726 v->valid = 1;
|
|
340
|
727 v->no_cacheable = 0;
|
|
122
|
728 v->not_found = 0;
|
|
|
729 v->data = header[i].value.data;
|
|
48
|
730
|
|
122
|
731 return NGX_OK;
|
|
48
|
732 }
|
|
|
733 }
|
|
|
734
|
|
122
|
735 v->not_found = 1;
|
|
|
736
|
|
|
737 return NGX_OK;
|
|
58
|
738 }
|
|
|
739
|
|
|
740
|
|
122
|
741 static ngx_int_t
|
|
420
|
742 ngx_http_variable_cookie(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
743 uintptr_t data)
|
|
|
744 {
|
|
|
745 ngx_str_t *name = (ngx_str_t *) data;
|
|
|
746
|
|
|
747 ngx_str_t cookie, s;
|
|
|
748
|
|
|
749 s.len = name->len - (sizeof("cookie_") - 1);
|
|
|
750 s.data = name->data + sizeof("cookie_") - 1;
|
|
|
751
|
|
|
752 if (ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &s, &cookie)
|
|
|
753 == NGX_DECLINED)
|
|
|
754 {
|
|
|
755 v->not_found = 1;
|
|
|
756 return NGX_OK;
|
|
|
757 }
|
|
|
758
|
|
|
759 v->len = cookie.len;
|
|
|
760 v->valid = 1;
|
|
|
761 v->no_cacheable = 0;
|
|
|
762 v->not_found = 0;
|
|
|
763 v->data = cookie.data;
|
|
|
764
|
|
|
765 return NGX_OK;
|
|
|
766 }
|
|
|
767
|
|
|
768
|
|
|
769 static ngx_int_t
|
|
392
|
770 ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
771 uintptr_t data)
|
|
|
772 {
|
|
|
773 ngx_str_t *name = (ngx_str_t *) data;
|
|
|
774
|
|
|
775 u_char *p, *arg;
|
|
|
776 size_t len;
|
|
|
777
|
|
|
778 if (r->args.len == 0) {
|
|
|
779 v->not_found = 1;
|
|
|
780 return NGX_OK;
|
|
|
781 }
|
|
|
782
|
|
|
783 len = name->len - 1 - (sizeof("arg_") - 1);
|
|
|
784 arg = name->data + sizeof("arg_") - 1;
|
|
|
785
|
|
|
786 for (p = r->args.data; *p && *p != ' '; p++) {
|
|
|
787
|
|
|
788 /*
|
|
|
789 * although r->args.data is not null-terminated by itself,
|
|
|
790 * however, there is null in the end of request line
|
|
|
791 */
|
|
|
792
|
|
|
793 p = ngx_strcasestrn(p, (char *) arg, len);
|
|
|
794
|
|
|
795 if (p == NULL) {
|
|
|
796 v->not_found = 1;
|
|
|
797 return NGX_OK;
|
|
|
798 }
|
|
|
799
|
|
|
800 if ((p == r->args.data || *(p - 1) == '&') && *(p + len + 1) == '=') {
|
|
|
801
|
|
|
802 v->data = p + len + 2;
|
|
|
803
|
|
|
804 p = (u_char *) ngx_strchr(p, '&');
|
|
|
805
|
|
|
806 if (p == NULL) {
|
|
|
807 p = r->args.data + r->args.len;
|
|
|
808 }
|
|
|
809
|
|
|
810 v->len = p - v->data;
|
|
|
811 v->valid = 1;
|
|
|
812 v->no_cacheable = 0;
|
|
|
813 v->not_found = 0;
|
|
|
814
|
|
|
815 return NGX_OK;
|
|
|
816 }
|
|
|
817 }
|
|
|
818
|
|
|
819 v->not_found = 1;
|
|
|
820
|
|
|
821 return NGX_OK;
|
|
|
822 }
|
|
|
823
|
|
|
824
|
|
|
825 static ngx_int_t
|
|
122
|
826 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
827 uintptr_t data)
|
|
58
|
828 {
|
|
362
|
829 ngx_http_core_srv_conf_t *cscf;
|
|
|
830
|
|
376
|
831 if (r->headers_in.server.len) {
|
|
|
832 v->len = r->headers_in.server.len;
|
|
|
833 v->data = r->headers_in.server.data;
|
|
270
|
834
|
|
|
835 } else {
|
|
376
|
836 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
837
|
|
|
838 v->len = cscf->server_name.len;
|
|
|
839 v->data = cscf->server_name.data;
|
|
58
|
840 }
|
|
|
841
|
|
122
|
842 v->valid = 1;
|
|
340
|
843 v->no_cacheable = 0;
|
|
122
|
844 v->not_found = 0;
|
|
58
|
845
|
|
122
|
846 return NGX_OK;
|
|
48
|
847 }
|
|
|
848
|
|
|
849
|
|
122
|
850 static ngx_int_t
|
|
272
|
851 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
|
|
|
852 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
853 {
|
|
|
854 struct sockaddr_in *sin;
|
|
|
855
|
|
|
856 /* AF_INET only */
|
|
|
857
|
|
|
858 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
|
859
|
|
|
860 v->len = sizeof(in_addr_t);
|
|
|
861 v->valid = 1;
|
|
340
|
862 v->no_cacheable = 0;
|
|
272
|
863 v->not_found = 0;
|
|
|
864 v->data = (u_char *) &sin->sin_addr.s_addr;
|
|
|
865
|
|
|
866 return NGX_OK;
|
|
|
867 }
|
|
|
868
|
|
|
869
|
|
|
870 static ngx_int_t
|
|
122
|
871 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
|
872 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
873 {
|
|
122
|
874 v->len = r->connection->addr_text.len;
|
|
|
875 v->valid = 1;
|
|
340
|
876 v->no_cacheable = 0;
|
|
122
|
877 v->not_found = 0;
|
|
|
878 v->data = r->connection->addr_text.data;
|
|
48
|
879
|
|
122
|
880 return NGX_OK;
|
|
48
|
881 }
|
|
|
882
|
|
|
883
|
|
122
|
884 static ngx_int_t
|
|
|
885 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
|
886 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
887 {
|
|
122
|
888 ngx_uint_t port;
|
|
|
889 struct sockaddr_in *sin;
|
|
58
|
890
|
|
122
|
891 v->len = 0;
|
|
|
892 v->valid = 1;
|
|
340
|
893 v->no_cacheable = 0;
|
|
122
|
894 v->not_found = 0;
|
|
58
|
895
|
|
382
|
896 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1);
|
|
122
|
897 if (v->data == NULL) {
|
|
|
898 return NGX_ERROR;
|
|
58
|
899 }
|
|
|
900
|
|
|
901 /* AF_INET only */
|
|
126
|
902
|
|
58
|
903 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
|
904 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
126
|
905
|
|
58
|
906 port = ntohs(sin->sin_port);
|
|
126
|
907
|
|
58
|
908 if (port > 0 && port < 65536) {
|
|
122
|
909 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
|
58
|
910 }
|
|
|
911 }
|
|
|
912
|
|
122
|
913 return NGX_OK;
|
|
58
|
914 }
|
|
|
915
|
|
|
916
|
|
122
|
917 static ngx_int_t
|
|
|
918 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
|
919 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
920 {
|
|
362
|
921 ngx_str_t s;
|
|
48
|
922
|
|
400
|
923 s.data = ngx_pnalloc(r->pool, NGX_INET_ADDRSTRLEN);
|
|
362
|
924 if (s.data == NULL) {
|
|
122
|
925 return NGX_ERROR;
|
|
58
|
926 }
|
|
|
927
|
|
362
|
928 if (ngx_http_server_addr(r, &s) != NGX_OK) {
|
|
|
929 return NGX_ERROR;
|
|
58
|
930 }
|
|
|
931
|
|
362
|
932 v->len = s.len;
|
|
122
|
933 v->valid = 1;
|
|
340
|
934 v->no_cacheable = 0;
|
|
122
|
935 v->not_found = 0;
|
|
362
|
936 v->data = s.data;
|
|
48
|
937
|
|
122
|
938 return NGX_OK;
|
|
48
|
939 }
|
|
|
940
|
|
|
941
|
|
122
|
942 static ngx_int_t
|
|
|
943 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
|
944 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
945 {
|
|
122
|
946 v->len = r->port_text->len - 1;
|
|
|
947 v->valid = 1;
|
|
340
|
948 v->no_cacheable = 0;
|
|
122
|
949 v->not_found = 0;
|
|
|
950 v->data = r->port_text->data + 1;
|
|
58
|
951
|
|
122
|
952 return NGX_OK;
|
|
58
|
953 }
|
|
|
954
|
|
|
955
|
|
122
|
956 static ngx_int_t
|
|
238
|
957 ngx_http_variable_scheme(ngx_http_request_t *r,
|
|
|
958 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
959 {
|
|
|
960 #if (NGX_HTTP_SSL)
|
|
|
961
|
|
|
962 if (r->connection->ssl) {
|
|
|
963 v->len = sizeof("https") - 1;
|
|
|
964 v->valid = 1;
|
|
340
|
965 v->no_cacheable = 0;
|
|
238
|
966 v->not_found = 0;
|
|
|
967 v->data = (u_char *) "https";
|
|
|
968
|
|
|
969 return NGX_OK;
|
|
|
970 }
|
|
|
971
|
|
|
972 #endif
|
|
|
973
|
|
|
974 v->len = sizeof("http") - 1;
|
|
|
975 v->valid = 1;
|
|
340
|
976 v->no_cacheable = 0;
|
|
238
|
977 v->not_found = 0;
|
|
|
978 v->data = (u_char *) "http";
|
|
|
979
|
|
|
980 return NGX_OK;
|
|
|
981 }
|
|
|
982
|
|
|
983
|
|
|
984 static ngx_int_t
|
|
324
|
985 ngx_http_variable_is_args(ngx_http_request_t *r,
|
|
|
986 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
987 {
|
|
|
988 v->valid = 1;
|
|
340
|
989 v->no_cacheable = 0;
|
|
324
|
990 v->not_found = 0;
|
|
|
991
|
|
|
992 if (r->args.len == 0) {
|
|
|
993 v->len = 0;
|
|
|
994 v->data = NULL;
|
|
|
995 return NGX_OK;
|
|
|
996 }
|
|
|
997
|
|
|
998 v->len = 1;
|
|
|
999 v->data = (u_char *) "?";
|
|
|
1000
|
|
|
1001 return NGX_OK;
|
|
|
1002 }
|
|
|
1003
|
|
|
1004
|
|
|
1005 static ngx_int_t
|
|
122
|
1006 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
|
1007 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
1008 {
|
|
220
|
1009 ngx_str_t path;
|
|
122
|
1010 ngx_http_core_loc_conf_t *clcf;
|
|
58
|
1011
|
|
|
1012 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1013
|
|
220
|
1014 if (clcf->root_lengths == NULL) {
|
|
|
1015 v->len = clcf->root.len;
|
|
|
1016 v->valid = 1;
|
|
340
|
1017 v->no_cacheable = 0;
|
|
220
|
1018 v->not_found = 0;
|
|
|
1019 v->data = clcf->root.data;
|
|
|
1020
|
|
|
1021 } else {
|
|
|
1022 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0,
|
|
|
1023 clcf->root_values->elts)
|
|
|
1024 == NULL)
|
|
|
1025 {
|
|
|
1026 return NGX_ERROR;
|
|
|
1027 }
|
|
|
1028
|
|
324
|
1029 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
|
|
|
1030 == NGX_ERROR)
|
|
|
1031 {
|
|
220
|
1032 return NGX_ERROR;
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 v->len = path.len;
|
|
|
1036 v->valid = 1;
|
|
340
|
1037 v->no_cacheable = 0;
|
|
220
|
1038 v->not_found = 0;
|
|
|
1039 v->data = path.data;
|
|
|
1040 }
|
|
58
|
1041
|
|
122
|
1042 return NGX_OK;
|
|
58
|
1043 }
|
|
|
1044
|
|
|
1045
|
|
122
|
1046 static ngx_int_t
|
|
412
|
1047 ngx_http_variable_realpath_root(ngx_http_request_t *r,
|
|
|
1048 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1049 {
|
|
|
1050 size_t len;
|
|
|
1051 ngx_str_t path;
|
|
|
1052 ngx_http_core_loc_conf_t *clcf;
|
|
|
1053 u_char real[NGX_MAX_PATH];
|
|
|
1054
|
|
|
1055 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1056
|
|
|
1057 if (clcf->root_lengths == NULL) {
|
|
|
1058 path = clcf->root;
|
|
|
1059
|
|
|
1060 } else {
|
|
|
1061 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 1,
|
|
|
1062 clcf->root_values->elts)
|
|
|
1063 == NULL)
|
|
|
1064 {
|
|
|
1065 return NGX_ERROR;
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 path.data[path.len - 1] = '\0';
|
|
|
1069
|
|
|
1070 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0)
|
|
|
1071 == NGX_ERROR)
|
|
|
1072 {
|
|
|
1073 return NGX_ERROR;
|
|
|
1074 }
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 if (ngx_realpath(path.data, real) == NULL) {
|
|
|
1078 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
1079 ngx_realpath_n " \"%s\" failed", path.data);
|
|
|
1080 return NGX_ERROR;
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 len = ngx_strlen(real);
|
|
|
1084
|
|
|
1085 v->data = ngx_pnalloc(r->pool, len);
|
|
|
1086 if (v->data == NULL) {
|
|
|
1087 return NGX_ERROR;
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 v->len = len;
|
|
|
1091 v->valid = 1;
|
|
|
1092 v->no_cacheable = 0;
|
|
|
1093 v->not_found = 0;
|
|
|
1094
|
|
|
1095 ngx_memcpy(v->data, real, len);
|
|
|
1096
|
|
|
1097 return NGX_OK;
|
|
|
1098 }
|
|
|
1099
|
|
|
1100
|
|
|
1101 static ngx_int_t
|
|
122
|
1102 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
|
1103 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1104 {
|
|
248
|
1105 size_t root;
|
|
122
|
1106 ngx_str_t path;
|
|
48
|
1107
|
|
248
|
1108 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
|
|
122
|
1109 return NGX_ERROR;
|
|
106
|
1110 }
|
|
58
|
1111
|
|
106
|
1112 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
|
58
|
1113
|
|
122
|
1114 v->len = path.len - 1;
|
|
|
1115 v->valid = 1;
|
|
340
|
1116 v->no_cacheable = 0;
|
|
122
|
1117 v->not_found = 0;
|
|
|
1118 v->data = path.data;
|
|
48
|
1119
|
|
122
|
1120 return NGX_OK;
|
|
48
|
1121 }
|
|
|
1122
|
|
|
1123
|
|
122
|
1124 static ngx_int_t
|
|
362
|
1125 ngx_http_variable_server_name(ngx_http_request_t *r,
|
|
|
1126 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1127 {
|
|
|
1128 ngx_http_core_srv_conf_t *cscf;
|
|
|
1129
|
|
|
1130 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1131
|
|
|
1132 v->len = cscf->server_name.len;
|
|
|
1133 v->valid = 1;
|
|
|
1134 v->no_cacheable = 0;
|
|
|
1135 v->not_found = 0;
|
|
|
1136 v->data = cscf->server_name.data;
|
|
|
1137
|
|
|
1138 return NGX_OK;
|
|
|
1139 }
|
|
|
1140
|
|
|
1141
|
|
|
1142 static ngx_int_t
|
|
122
|
1143 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
|
1144 ngx_http_variable_value_t *v, uintptr_t data)
|
|
110
|
1145 {
|
|
196
|
1146 if (r->main->method_name.data) {
|
|
|
1147 v->len = r->main->method_name.len;
|
|
122
|
1148 v->valid = 1;
|
|
340
|
1149 v->no_cacheable = 0;
|
|
122
|
1150 v->not_found = 0;
|
|
196
|
1151 v->data = r->main->method_name.data;
|
|
122
|
1152
|
|
|
1153 } else {
|
|
|
1154 v->not_found = 1;
|
|
110
|
1155 }
|
|
|
1156
|
|
122
|
1157 return NGX_OK;
|
|
110
|
1158 }
|
|
|
1159
|
|
|
1160
|
|
122
|
1161 static ngx_int_t
|
|
|
1162 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
|
1163 ngx_http_variable_value_t *v, uintptr_t data)
|
|
88
|
1164 {
|
|
122
|
1165 ngx_int_t rc;
|
|
88
|
1166
|
|
|
1167 rc = ngx_http_auth_basic_user(r);
|
|
|
1168
|
|
|
1169 if (rc == NGX_DECLINED) {
|
|
122
|
1170 v->not_found = 1;
|
|
|
1171 return NGX_OK;
|
|
88
|
1172 }
|
|
|
1173
|
|
|
1174 if (rc == NGX_ERROR) {
|
|
122
|
1175 return NGX_ERROR;
|
|
88
|
1176 }
|
|
|
1177
|
|
122
|
1178 v->len = r->headers_in.user.len;
|
|
|
1179 v->valid = 1;
|
|
340
|
1180 v->no_cacheable = 0;
|
|
122
|
1181 v->not_found = 0;
|
|
|
1182 v->data = r->headers_in.user.data;
|
|
120
|
1183
|
|
122
|
1184 return NGX_OK;
|
|
120
|
1185 }
|
|
|
1186
|
|
|
1187
|
|
160
|
1188 static ngx_int_t
|
|
|
1189 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
|
|
|
1190 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1191 {
|
|
|
1192 off_t sent;
|
|
|
1193 u_char *p;
|
|
|
1194
|
|
|
1195 sent = r->connection->sent - r->header_size;
|
|
|
1196
|
|
|
1197 if (sent < 0) {
|
|
|
1198 sent = 0;
|
|
|
1199 }
|
|
|
1200
|
|
382
|
1201 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
|
160
|
1202 if (p == NULL) {
|
|
|
1203 return NGX_ERROR;
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 v->len = ngx_sprintf(p, "%O", sent) - p;
|
|
|
1207 v->valid = 1;
|
|
340
|
1208 v->no_cacheable = 0;
|
|
160
|
1209 v->not_found = 0;
|
|
|
1210 v->data = p;
|
|
|
1211
|
|
|
1212 return NGX_OK;
|
|
|
1213 }
|
|
|
1214
|
|
|
1215
|
|
178
|
1216 static ngx_int_t
|
|
190
|
1217 ngx_http_variable_sent_content_type(ngx_http_request_t *r,
|
|
|
1218 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1219 {
|
|
|
1220 if (r->headers_out.content_type.len) {
|
|
|
1221 v->len = r->headers_out.content_type.len;
|
|
|
1222 v->valid = 1;
|
|
340
|
1223 v->no_cacheable = 0;
|
|
190
|
1224 v->not_found = 0;
|
|
|
1225 v->data = r->headers_out.content_type.data;
|
|
|
1226
|
|
|
1227 } else {
|
|
|
1228 v->not_found = 1;
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 return NGX_OK;
|
|
|
1232 }
|
|
|
1233
|
|
|
1234
|
|
|
1235 static ngx_int_t
|
|
|
1236 ngx_http_variable_sent_content_length(ngx_http_request_t *r,
|
|
|
1237 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1238 {
|
|
|
1239 u_char *p;
|
|
|
1240
|
|
|
1241 if (r->headers_out.content_length) {
|
|
|
1242 v->len = r->headers_out.content_length->value.len;
|
|
|
1243 v->valid = 1;
|
|
340
|
1244 v->no_cacheable = 0;
|
|
190
|
1245 v->not_found = 0;
|
|
|
1246 v->data = r->headers_out.content_length->value.data;
|
|
|
1247
|
|
|
1248 return NGX_OK;
|
|
|
1249 }
|
|
|
1250
|
|
|
1251 if (r->headers_out.content_length_n >= 0) {
|
|
382
|
1252 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
|
190
|
1253 if (p == NULL) {
|
|
|
1254 return NGX_ERROR;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p;
|
|
|
1258 v->valid = 1;
|
|
340
|
1259 v->no_cacheable = 0;
|
|
190
|
1260 v->not_found = 0;
|
|
|
1261 v->data = p;
|
|
|
1262
|
|
|
1263 return NGX_OK;
|
|
|
1264 }
|
|
|
1265
|
|
|
1266 v->not_found = 1;
|
|
|
1267
|
|
|
1268 return NGX_OK;
|
|
|
1269 }
|
|
|
1270
|
|
|
1271
|
|
|
1272 static ngx_int_t
|
|
|
1273 ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
|
|
|
1274 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1275 {
|
|
|
1276 u_char *p;
|
|
|
1277
|
|
|
1278 if (r->headers_out.last_modified) {
|
|
|
1279 v->len = r->headers_out.last_modified->value.len;
|
|
|
1280 v->valid = 1;
|
|
340
|
1281 v->no_cacheable = 0;
|
|
190
|
1282 v->not_found = 0;
|
|
|
1283 v->data = r->headers_out.last_modified->value.data;
|
|
|
1284
|
|
|
1285 return NGX_OK;
|
|
|
1286 }
|
|
|
1287
|
|
|
1288 if (r->headers_out.last_modified_time >= 0) {
|
|
382
|
1289 p = ngx_pnalloc(r->pool,
|
|
190
|
1290 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1);
|
|
|
1291 if (p == NULL) {
|
|
|
1292 return NGX_ERROR;
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p;
|
|
|
1296 v->valid = 1;
|
|
340
|
1297 v->no_cacheable = 0;
|
|
190
|
1298 v->not_found = 0;
|
|
|
1299 v->data = p;
|
|
|
1300
|
|
|
1301 return NGX_OK;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 v->not_found = 1;
|
|
|
1305
|
|
|
1306 return NGX_OK;
|
|
|
1307 }
|
|
|
1308
|
|
|
1309
|
|
|
1310 static ngx_int_t
|
|
|
1311 ngx_http_variable_sent_connection(ngx_http_request_t *r,
|
|
|
1312 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1313 {
|
|
|
1314 size_t len;
|
|
|
1315 char *p;
|
|
|
1316
|
|
|
1317 if (r->keepalive) {
|
|
|
1318 len = sizeof("keep-alive") - 1;
|
|
|
1319 p = "keep-alive";
|
|
|
1320
|
|
|
1321 } else {
|
|
|
1322 len = sizeof("close") - 1;
|
|
|
1323 p = "close";
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 v->len = len;
|
|
|
1327 v->valid = 1;
|
|
340
|
1328 v->no_cacheable = 0;
|
|
190
|
1329 v->not_found = 0;
|
|
|
1330 v->data = (u_char *) p;
|
|
|
1331
|
|
|
1332 return NGX_OK;
|
|
|
1333 }
|
|
|
1334
|
|
|
1335
|
|
|
1336 static ngx_int_t
|
|
|
1337 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
|
|
|
1338 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1339 {
|
|
|
1340 u_char *p;
|
|
|
1341 ngx_http_core_loc_conf_t *clcf;
|
|
|
1342
|
|
|
1343 if (r->keepalive) {
|
|
|
1344 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1345
|
|
|
1346 if (clcf->keepalive_header) {
|
|
|
1347
|
|
382
|
1348 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN);
|
|
190
|
1349 if (p == NULL) {
|
|
|
1350 return NGX_ERROR;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p;
|
|
|
1354 v->valid = 1;
|
|
340
|
1355 v->no_cacheable = 0;
|
|
190
|
1356 v->not_found = 0;
|
|
|
1357 v->data = p;
|
|
|
1358
|
|
|
1359 return NGX_OK;
|
|
|
1360 }
|
|
|
1361 }
|
|
|
1362
|
|
|
1363 v->not_found = 1;
|
|
|
1364
|
|
|
1365 return NGX_OK;
|
|
|
1366 }
|
|
|
1367
|
|
|
1368
|
|
|
1369 static ngx_int_t
|
|
|
1370 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
|
|
|
1371 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1372 {
|
|
|
1373 if (r->chunked) {
|
|
|
1374 v->len = sizeof("chunked") - 1;
|
|
|
1375 v->valid = 1;
|
|
340
|
1376 v->no_cacheable = 0;
|
|
190
|
1377 v->not_found = 0;
|
|
|
1378 v->data = (u_char *) "chunked";
|
|
|
1379
|
|
|
1380 } else {
|
|
|
1381 v->not_found = 1;
|
|
|
1382 }
|
|
|
1383
|
|
|
1384 return NGX_OK;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387
|
|
|
1388 static ngx_int_t
|
|
178
|
1389 ngx_http_variable_request_completion(ngx_http_request_t *r,
|
|
|
1390 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1391 {
|
|
|
1392 if (r->request_complete) {
|
|
|
1393 v->len = 2;
|
|
|
1394 v->valid = 1;
|
|
340
|
1395 v->no_cacheable = 0;
|
|
178
|
1396 v->not_found = 0;
|
|
|
1397 v->data = (u_char *) "OK";
|
|
|
1398
|
|
|
1399 return NGX_OK;
|
|
|
1400 }
|
|
|
1401
|
|
|
1402 v->len = 0;
|
|
|
1403 v->valid = 1;
|
|
340
|
1404 v->no_cacheable = 0;
|
|
178
|
1405 v->not_found = 0;
|
|
|
1406 v->data = (u_char *) "";
|
|
|
1407
|
|
|
1408 return NGX_OK;
|
|
|
1409 }
|
|
|
1410
|
|
|
1411
|
|
244
|
1412 static ngx_int_t
|
|
|
1413 ngx_http_variable_request_body_file(ngx_http_request_t *r,
|
|
|
1414 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1415 {
|
|
|
1416 if (r->request_body == NULL || r->request_body->temp_file == NULL) {
|
|
246
|
1417 v->not_found = 1;
|
|
244
|
1418
|
|
|
1419 return NGX_OK;
|
|
|
1420 }
|
|
|
1421
|
|
|
1422 v->len = r->request_body->temp_file->file.name.len;
|
|
|
1423 v->valid = 1;
|
|
340
|
1424 v->no_cacheable = 0;
|
|
244
|
1425 v->not_found = 0;
|
|
|
1426 v->data = r->request_body->temp_file->file.name.data;
|
|
|
1427
|
|
|
1428 return NGX_OK;
|
|
|
1429 }
|
|
|
1430
|
|
|
1431
|
|
322
|
1432 static ngx_int_t
|
|
|
1433 ngx_http_variable_nginx_version(ngx_http_request_t *r,
|
|
|
1434 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1435 {
|
|
|
1436 v->len = sizeof(NGINX_VERSION) - 1;
|
|
|
1437 v->valid = 1;
|
|
340
|
1438 v->no_cacheable = 0;
|
|
322
|
1439 v->not_found = 0;
|
|
|
1440 v->data = (u_char *) NGINX_VERSION;
|
|
|
1441
|
|
|
1442 return NGX_OK;
|
|
|
1443 }
|
|
|
1444
|
|
|
1445
|
|
376
|
1446 static ngx_int_t
|
|
|
1447 ngx_http_variable_hostname(ngx_http_request_t *r,
|
|
|
1448 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1449 {
|
|
|
1450 v->len = ngx_cycle->hostname.len;
|
|
|
1451 v->valid = 1;
|
|
|
1452 v->no_cacheable = 0;
|
|
|
1453 v->not_found = 0;
|
|
|
1454 v->data = ngx_cycle->hostname.data;
|
|
|
1455
|
|
|
1456 return NGX_OK;
|
|
|
1457 }
|
|
|
1458
|
|
|
1459
|
|
410
|
1460 static ngx_int_t
|
|
|
1461 ngx_http_variable_pid(ngx_http_request_t *r,
|
|
|
1462 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1463 {
|
|
|
1464 u_char *p;
|
|
|
1465
|
|
|
1466 p = ngx_pnalloc(r->pool, NGX_INT64_LEN);
|
|
|
1467 if (p == NULL) {
|
|
|
1468 return NGX_ERROR;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 v->len = ngx_sprintf(p, "%P", ngx_pid) - p;
|
|
|
1472 v->valid = 1;
|
|
|
1473 v->no_cacheable = 0;
|
|
|
1474 v->not_found = 0;
|
|
|
1475 v->data = p;
|
|
|
1476
|
|
|
1477 return NGX_OK;
|
|
|
1478 }
|
|
|
1479
|
|
|
1480
|
|
48
|
1481 ngx_int_t
|
|
58
|
1482 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
|
48
|
1483 {
|
|
160
|
1484 ngx_int_t rc;
|
|
|
1485 ngx_http_variable_t *v;
|
|
50
|
1486 ngx_http_core_main_conf_t *cmcf;
|
|
48
|
1487
|
|
58
|
1488 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1489
|
|
160
|
1490 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool,
|
|
|
1491 sizeof(ngx_hash_keys_arrays_t));
|
|
|
1492 if (cmcf->variables_keys == NULL) {
|
|
|
1493 return NGX_ERROR;
|
|
|
1494 }
|
|
|
1495
|
|
|
1496 cmcf->variables_keys->pool = cf->pool;
|
|
|
1497 cmcf->variables_keys->temp_pool = cf->pool;
|
|
|
1498
|
|
|
1499 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL)
|
|
|
1500 != NGX_OK)
|
|
58
|
1501 {
|
|
48
|
1502 return NGX_ERROR;
|
|
|
1503 }
|
|
|
1504
|
|
160
|
1505 for (v = ngx_http_core_variables; v->name.len; v++) {
|
|
|
1506 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v,
|
|
|
1507 NGX_HASH_READONLY_KEY);
|
|
|
1508
|
|
|
1509 if (rc == NGX_OK) {
|
|
|
1510 continue;
|
|
48
|
1511 }
|
|
|
1512
|
|
160
|
1513 if (rc == NGX_BUSY) {
|
|
|
1514 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1515 "conflicting variable name \"%V\"", &v->name);
|
|
|
1516 }
|
|
|
1517
|
|
|
1518 return NGX_ERROR;
|
|
48
|
1519 }
|
|
|
1520
|
|
|
1521 return NGX_OK;
|
|
|
1522 }
|
|
58
|
1523
|
|
|
1524
|
|
|
1525 ngx_int_t
|
|
|
1526 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
|
1527 {
|
|
|
1528 ngx_uint_t i, n;
|
|
160
|
1529 ngx_hash_key_t *key;
|
|
|
1530 ngx_hash_init_t hash;
|
|
58
|
1531 ngx_http_variable_t *v, *av;
|
|
|
1532 ngx_http_core_main_conf_t *cmcf;
|
|
|
1533
|
|
|
1534 /* set the handlers for the indexed http variables */
|
|
|
1535
|
|
|
1536 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1537
|
|
|
1538 v = cmcf->variables.elts;
|
|
160
|
1539 key = cmcf->variables_keys->keys.elts;
|
|
58
|
1540
|
|
|
1541 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
1542
|
|
160
|
1543 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
58
|
1544
|
|
300
|
1545 av = key[n].value;
|
|
|
1546
|
|
|
1547 if (av->get_handler
|
|
|
1548 && v[i].name.len == key[n].key.len
|
|
160
|
1549 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len)
|
|
58
|
1550 == 0)
|
|
|
1551 {
|
|
186
|
1552 v[i].get_handler = av->get_handler;
|
|
160
|
1553 v[i].data = av->data;
|
|
76
|
1554
|
|
160
|
1555 av->flags |= NGX_HTTP_VAR_INDEXED;
|
|
|
1556 v[i].flags = av->flags;
|
|
58
|
1557
|
|
160
|
1558 av->index = i;
|
|
82
|
1559
|
|
58
|
1560 goto next;
|
|
|
1561 }
|
|
|
1562 }
|
|
|
1563
|
|
|
1564 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
|
186
|
1565 v[i].get_handler = ngx_http_variable_unknown_header_in;
|
|
126
|
1566 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1567
|
|
|
1568 continue;
|
|
|
1569 }
|
|
|
1570
|
|
|
1571 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) {
|
|
186
|
1572 v[i].get_handler = ngx_http_variable_unknown_header_out;
|
|
58
|
1573 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1574
|
|
|
1575 continue;
|
|
|
1576 }
|
|
|
1577
|
|
296
|
1578 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) {
|
|
|
1579 v[i].get_handler = ngx_http_upstream_header_variable;
|
|
|
1580 v[i].data = (uintptr_t) &v[i].name;
|
|
340
|
1581 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE;
|
|
296
|
1582
|
|
|
1583 continue;
|
|
|
1584 }
|
|
|
1585
|
|
420
|
1586 if (ngx_strncmp(v[i].name.data, "cookie_", 7) == 0) {
|
|
|
1587 v[i].get_handler = ngx_http_variable_cookie;
|
|
|
1588 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1589
|
|
|
1590 continue;
|
|
|
1591 }
|
|
|
1592
|
|
392
|
1593 if (ngx_strncmp(v[i].name.data, "arg_", 4) == 0) {
|
|
|
1594 v[i].get_handler = ngx_http_variable_argument;
|
|
|
1595 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1596
|
|
|
1597 continue;
|
|
|
1598 }
|
|
|
1599
|
|
58
|
1600 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
|
1601 "unknown \"%V\" variable", &v[i].name);
|
|
|
1602
|
|
|
1603 return NGX_ERROR;
|
|
|
1604
|
|
|
1605 next:
|
|
|
1606 continue;
|
|
|
1607 }
|
|
|
1608
|
|
|
1609
|
|
160
|
1610 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
|
1611 av = key[n].value;
|
|
|
1612
|
|
|
1613 if (av->flags & NGX_HTTP_VAR_NOHASH) {
|
|
|
1614 key[n].key.data = NULL;
|
|
132
|
1615 }
|
|
|
1616 }
|
|
|
1617
|
|
|
1618
|
|
160
|
1619 hash.hash = &cmcf->variables_hash;
|
|
|
1620 hash.key = ngx_hash_key;
|
|
|
1621 hash.max_size = cmcf->variables_hash_max_size;
|
|
|
1622 hash.bucket_size = cmcf->variables_hash_bucket_size;
|
|
|
1623 hash.name = "variables_hash";
|
|
|
1624 hash.pool = cf->pool;
|
|
|
1625 hash.temp_pool = NULL;
|
|
58
|
1626
|
|
160
|
1627 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts,
|
|
|
1628 cmcf->variables_keys->keys.nelts)
|
|
130
|
1629 != NGX_OK)
|
|
58
|
1630 {
|
|
|
1631 return NGX_ERROR;
|
|
|
1632 }
|
|
|
1633
|
|
160
|
1634 cmcf->variables_keys = NULL;
|
|
58
|
1635
|
|
|
1636 return NGX_OK;
|
|
|
1637 }
|
|
422
|
1638
|
|
|
1639
|
|
|
1640 void
|
|
|
1641 ngx_http_variable_value_rbtree_insert(ngx_rbtree_node_t *temp,
|
|
|
1642 ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel)
|
|
|
1643 {
|
|
|
1644 ngx_rbtree_node_t **p;
|
|
|
1645 ngx_http_variable_value_node_t *vvn, *vvt;
|
|
|
1646
|
|
|
1647 for ( ;; ) {
|
|
|
1648
|
|
|
1649 vvn = (ngx_http_variable_value_node_t *) node;
|
|
|
1650 vvt = (ngx_http_variable_value_node_t *) temp;
|
|
|
1651
|
|
|
1652 if (node->key != temp->key) {
|
|
|
1653
|
|
|
1654 p = (node->key < temp->key) ? &temp->left : &temp->right;
|
|
|
1655
|
|
|
1656 } else if (vvn->len != vvt->len) {
|
|
|
1657
|
|
|
1658 p = (vvn->len < vvt->len) ? &temp->left : &temp->right;
|
|
|
1659
|
|
|
1660 } else {
|
|
|
1661 p = (ngx_memcmp(vvn->value->data, vvt->value->data, vvn->len) < 0)
|
|
|
1662 ? &temp->left : &temp->right;
|
|
|
1663 }
|
|
|
1664
|
|
|
1665 if (*p == sentinel) {
|
|
|
1666 break;
|
|
|
1667 }
|
|
|
1668
|
|
|
1669 temp = *p;
|
|
|
1670 }
|
|
|
1671
|
|
|
1672 *p = node;
|
|
|
1673 node->parent = temp;
|
|
|
1674 node->left = sentinel;
|
|
|
1675 node->right = sentinel;
|
|
|
1676 ngx_rbt_red(node);
|
|
|
1677 }
|
|
|
1678
|
|
|
1679
|
|
|
1680 ngx_http_variable_value_t *
|
|
|
1681 ngx_http_variable_value_lookup(ngx_rbtree_t *rbtree, ngx_str_t *val,
|
|
|
1682 uint32_t hash)
|
|
|
1683 {
|
|
|
1684 ngx_int_t rc;
|
|
|
1685 ngx_rbtree_node_t *node, *sentinel;
|
|
|
1686 ngx_http_variable_value_node_t *vvn;
|
|
|
1687
|
|
|
1688 node = rbtree->root;
|
|
|
1689 sentinel = rbtree->sentinel;
|
|
|
1690
|
|
|
1691 while (node != sentinel) {
|
|
|
1692
|
|
|
1693 vvn = (ngx_http_variable_value_node_t *) node;
|
|
|
1694
|
|
|
1695 if (hash != node->key) {
|
|
|
1696 node = (hash < node->key) ? node->left : node->right;
|
|
|
1697 continue;
|
|
|
1698 }
|
|
|
1699
|
|
|
1700 if (val->len != vvn->len) {
|
|
|
1701 node = (val->len < vvn->len) ? node->left : node->right;
|
|
|
1702 continue;
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 rc = ngx_memcmp(val->data, vvn->value->data, val->len);
|
|
|
1706
|
|
|
1707 if (rc < 0) {
|
|
|
1708 node = node->left;
|
|
|
1709 continue;
|
|
|
1710 }
|
|
|
1711
|
|
|
1712 if (rc > 0) {
|
|
|
1713 node = node->right;
|
|
|
1714 continue;
|
|
|
1715 }
|
|
|
1716
|
|
|
1717 return vvn->value;
|
|
|
1718 }
|
|
|
1719
|
|
|
1720 return NULL;
|
|
|
1721 }
|
