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