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