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