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