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