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