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