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