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