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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_http.h>
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322
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10 #include <nginx.h>
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48
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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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324
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15 static void ngx_http_variable_request_set(ngx_http_request_t *r,
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16 ngx_http_variable_value_t *v, uintptr_t data);
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540
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17 static ngx_int_t ngx_http_variable_request_get_size(ngx_http_request_t *r,
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18 ngx_http_variable_value_t *v, uintptr_t data);
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186
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19 static void ngx_http_variable_request_set_size(ngx_http_request_t *r,
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20 ngx_http_variable_value_t *v, uintptr_t data);
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122
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21 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
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22 ngx_http_variable_value_t *v, uintptr_t data);
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23 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r,
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24 ngx_http_variable_value_t *v, uintptr_t data);
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126
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25
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26 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
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122
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27 ngx_http_variable_value_t *v, uintptr_t data);
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126
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28 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
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29 ngx_http_variable_value_t *v, uintptr_t data);
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528
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30 static ngx_int_t ngx_http_variable_request_line(ngx_http_request_t *r,
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31 ngx_http_variable_value_t *v, uintptr_t data);
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424
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32 static ngx_int_t ngx_http_variable_cookie(ngx_http_request_t *r,
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33 ngx_http_variable_value_t *v, uintptr_t data);
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392
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34 static ngx_int_t ngx_http_variable_argument(ngx_http_request_t *r,
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35 ngx_http_variable_value_t *v, uintptr_t data);
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126
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36
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122
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37 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
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38 ngx_http_variable_value_t *v, uintptr_t data);
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272
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39 static ngx_int_t ngx_http_variable_binary_remote_addr(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_remote_addr(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_remote_port(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_server_addr(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_server_port(ngx_http_request_t *r,
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48 ngx_http_variable_value_t *v, uintptr_t data);
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238
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49 static ngx_int_t ngx_http_variable_scheme(ngx_http_request_t *r,
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50 ngx_http_variable_value_t *v, uintptr_t data);
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324
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51 static ngx_int_t ngx_http_variable_is_args(ngx_http_request_t *r,
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52 ngx_http_variable_value_t *v, uintptr_t data);
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122
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53 static ngx_int_t ngx_http_variable_document_root(ngx_http_request_t *r,
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54 ngx_http_variable_value_t *v, uintptr_t data);
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412
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55 static ngx_int_t ngx_http_variable_realpath_root(ngx_http_request_t *r,
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56 ngx_http_variable_value_t *v, uintptr_t data);
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122
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57 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r,
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58 ngx_http_variable_value_t *v, uintptr_t data);
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362
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59 static ngx_int_t ngx_http_variable_server_name(ngx_http_request_t *r,
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60 ngx_http_variable_value_t *v, uintptr_t data);
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122
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61 static ngx_int_t ngx_http_variable_request_method(ngx_http_request_t *r,
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62 ngx_http_variable_value_t *v, uintptr_t data);
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63 static ngx_int_t ngx_http_variable_remote_user(ngx_http_request_t *r,
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64 ngx_http_variable_value_t *v, uintptr_t data);
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160
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65 static ngx_int_t ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
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66 ngx_http_variable_value_t *v, uintptr_t data);
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178
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67 static ngx_int_t ngx_http_variable_request_completion(ngx_http_request_t *r,
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68 ngx_http_variable_value_t *v, uintptr_t data);
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492
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69 static ngx_int_t ngx_http_variable_request_body(ngx_http_request_t *r,
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70 ngx_http_variable_value_t *v, uintptr_t data);
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244
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71 static ngx_int_t ngx_http_variable_request_body_file(ngx_http_request_t *r,
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72 ngx_http_variable_value_t *v, uintptr_t data);
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48
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73
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190
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74 static ngx_int_t ngx_http_variable_sent_content_type(ngx_http_request_t *r,
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75 ngx_http_variable_value_t *v, uintptr_t data);
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76 static ngx_int_t ngx_http_variable_sent_content_length(ngx_http_request_t *r,
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77 ngx_http_variable_value_t *v, uintptr_t data);
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442
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78 static ngx_int_t ngx_http_variable_sent_location(ngx_http_request_t *r,
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79 ngx_http_variable_value_t *v, uintptr_t data);
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190
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80 static ngx_int_t ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
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81 ngx_http_variable_value_t *v, uintptr_t data);
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82 static ngx_int_t ngx_http_variable_sent_connection(ngx_http_request_t *r,
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83 ngx_http_variable_value_t *v, uintptr_t data);
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84 static ngx_int_t ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
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85 ngx_http_variable_value_t *v, uintptr_t data);
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86 static ngx_int_t ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
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87 ngx_http_variable_value_t *v, uintptr_t data);
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88
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322
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89 static ngx_int_t ngx_http_variable_nginx_version(ngx_http_request_t *r,
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90 ngx_http_variable_value_t *v, uintptr_t data);
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376
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91 static ngx_int_t ngx_http_variable_hostname(ngx_http_request_t *r,
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92 ngx_http_variable_value_t *v, uintptr_t data);
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410
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93 static ngx_int_t ngx_http_variable_pid(ngx_http_request_t *r,
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94 ngx_http_variable_value_t *v, uintptr_t data);
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48
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95
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58
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96 /*
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97 * TODO:
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98 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
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99 * REMOTE_HOST (null), REMOTE_IDENT (null),
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100 * SERVER_SOFTWARE
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101 *
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120
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102 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
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58
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103 */
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48
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104
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190
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105 /*
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106 * the $http_host, $http_user_agent, $http_referer, $http_via,
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107 * and $http_x_forwarded_for variables may be handled by generic
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108 * ngx_http_variable_unknown_header_in(), but for perfomance reasons
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109 * they are handled using dedicated entries
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110 */
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111
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58
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112 static ngx_http_variable_t ngx_http_core_variables[] = {
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113
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186
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114 { ngx_string("http_host"), NULL, ngx_http_variable_header,
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82
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115 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
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48
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116
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186
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117 { ngx_string("http_user_agent"), NULL, ngx_http_variable_header,
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82
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118 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
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58
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119
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186
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120 { ngx_string("http_referer"), NULL, ngx_http_variable_header,
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82
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121 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
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48
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122
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123 #if (NGX_HTTP_GZIP)
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186
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124 { ngx_string("http_via"), NULL, ngx_http_variable_header,
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82
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125 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
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48
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126 #endif
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127
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286
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128 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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186
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129 { ngx_string("http_x_forwarded_for"), NULL, ngx_http_variable_header,
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82
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130 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
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48
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131 #endif
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132
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186
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133 { ngx_string("http_cookie"), NULL, ngx_http_variable_headers,
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82
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134 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
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64
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135
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186
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136 { ngx_string("content_length"), NULL, ngx_http_variable_header,
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82
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137 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
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58
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138
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186
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139 { ngx_string("content_type"), NULL, ngx_http_variable_header,
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82
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140 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
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58
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141
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186
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142 { ngx_string("host"), NULL, ngx_http_variable_host, 0, 0, 0 },
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58
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143
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272
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144 { ngx_string("binary_remote_addr"), NULL,
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145 ngx_http_variable_binary_remote_addr, 0, 0, 0 },
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146
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186
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147 { ngx_string("remote_addr"), NULL, ngx_http_variable_remote_addr, 0, 0, 0 },
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48
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148
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186
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149 { ngx_string("remote_port"), NULL, ngx_http_variable_remote_port, 0, 0, 0 },
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58
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150
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186
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151 { ngx_string("server_addr"), NULL, ngx_http_variable_server_addr, 0, 0, 0 },
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58
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152
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186
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153 { ngx_string("server_port"), NULL, ngx_http_variable_server_port, 0, 0, 0 },
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58
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154
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186
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155 { ngx_string("server_protocol"), NULL, ngx_http_variable_request,
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82
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156 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
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58
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157
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238
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158 { ngx_string("scheme"), NULL, ngx_http_variable_scheme, 0, 0, 0 },
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159
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186
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160 { ngx_string("request_uri"), NULL, ngx_http_variable_request,
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82
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161 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
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48
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162
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186
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163 { ngx_string("uri"), NULL, ngx_http_variable_request,
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164 offsetof(ngx_http_request_t, uri),
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340
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165 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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186
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166
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167 { ngx_string("document_uri"), NULL, ngx_http_variable_request,
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122
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168 offsetof(ngx_http_request_t, uri),
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340
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169 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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122
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170
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528
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171 { ngx_string("request"), NULL, ngx_http_variable_request_line, 0, 0, 0 },
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118
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172
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186
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173 { ngx_string("document_root"), NULL,
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340
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174 ngx_http_variable_document_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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175
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412
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176 { ngx_string("realpath_root"), NULL,
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177 ngx_http_variable_realpath_root, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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178
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186
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179 { ngx_string("query_string"), NULL, ngx_http_variable_request,
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58
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180 offsetof(ngx_http_request_t, args),
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340
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181 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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48
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182
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324
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183 { ngx_string("args"),
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184 ngx_http_variable_request_set,
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185 ngx_http_variable_request,
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138
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186 offsetof(ngx_http_request_t, args),
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340
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187 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
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324
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188
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189 { ngx_string("is_args"), NULL, ngx_http_variable_is_args,
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340
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190 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
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138
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191
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186
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192 { ngx_string("request_filename"), NULL,
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193 ngx_http_variable_request_filename, 0,
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340
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194 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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195
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362
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196 { ngx_string("server_name"), NULL, ngx_http_variable_server_name, 0, 0, 0 },
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58
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197
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186
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198 { ngx_string("request_method"), NULL,
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564
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199 ngx_http_variable_request_method, 0,
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200 NGX_HTTP_VAR_NOCACHEABLE, 0 },
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58
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201
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186
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202 { ngx_string("remote_user"), NULL, ngx_http_variable_remote_user, 0, 0, 0 },
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58
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203
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186
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204 { ngx_string("body_bytes_sent"), NULL, ngx_http_variable_body_bytes_sent,
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160
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205 0, 0, 0 },
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206
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186
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207 { ngx_string("request_completion"), NULL,
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208 ngx_http_variable_request_completion,
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178
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209 0, 0, 0 },
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210
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492
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211 { ngx_string("request_body"), NULL,
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212 ngx_http_variable_request_body,
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213 0, 0, 0 },
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214
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244
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215 { ngx_string("request_body_file"), NULL,
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216 ngx_http_variable_request_body_file,
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217 0, 0, 0 },
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218
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190
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219 { ngx_string("sent_http_content_type"), NULL,
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220 ngx_http_variable_sent_content_type, 0, 0, 0 },
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221
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222 { ngx_string("sent_http_content_length"), NULL,
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223 ngx_http_variable_sent_content_length, 0, 0, 0 },
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224
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442
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225 { ngx_string("sent_http_location"), NULL,
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226 ngx_http_variable_sent_location, 0, 0, 0 },
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227
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190
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228 { ngx_string("sent_http_last_modified"), NULL,
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229 ngx_http_variable_sent_last_modified, 0, 0, 0 },
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230
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231 { ngx_string("sent_http_connection"), NULL,
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232 ngx_http_variable_sent_connection, 0, 0, 0 },
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233
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234 { ngx_string("sent_http_keep_alive"), NULL,
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235 ngx_http_variable_sent_keep_alive, 0, 0, 0 },
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236
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237 { ngx_string("sent_http_transfer_encoding"), NULL,
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238 ngx_http_variable_sent_transfer_encoding, 0, 0, 0 },
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239
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240 { ngx_string("sent_http_cache_control"), NULL, ngx_http_variable_headers,
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241 offsetof(ngx_http_request_t, headers_out.cache_control), 0, 0 },
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242
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186
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243 { ngx_string("limit_rate"), ngx_http_variable_request_set_size,
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540
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244 ngx_http_variable_request_get_size,
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186
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245 offsetof(ngx_http_request_t, limit_rate),
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340
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246 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_NOCACHEABLE, 0 },
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186
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247
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322
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248 { ngx_string("nginx_version"), NULL, ngx_http_variable_nginx_version,
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249 0, 0, 0 },
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250
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376
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251 { ngx_string("hostname"), NULL, ngx_http_variable_hostname,
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252 0, 0, 0 },
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253
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410
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254 { ngx_string("pid"), NULL, ngx_http_variable_pid,
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255 0, 0, 0 },
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256
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186
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257 { ngx_null_string, NULL, NULL, 0, 0, 0 }
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48
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258 };
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259
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260
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126
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261 ngx_http_variable_value_t ngx_http_variable_null_value =
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262 ngx_http_variable("");
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263 ngx_http_variable_value_t ngx_http_variable_true_value =
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264 ngx_http_variable("1");
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265
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266
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48
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267 ngx_http_variable_t *
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58
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268 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
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269 {
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160
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270 ngx_int_t rc;
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58
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271 ngx_uint_t i;
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160
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272 ngx_hash_key_t *key;
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58
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273 ngx_http_variable_t *v;
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274 ngx_http_core_main_conf_t *cmcf;
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275
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276 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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277
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160
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278 key = cmcf->variables_keys->keys.elts;
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279 for (i = 0; i < cmcf->variables_keys->keys.nelts; i++) {
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280 if (name->len != key[i].key.len
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281 || ngx_strncasecmp(name->data, key[i].key.data, name->len) != 0)
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58
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282 {
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283 continue;
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284 }
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285
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160
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286 v = key[i].value;
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287
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340
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288 if (!(v->flags & NGX_HTTP_VAR_CHANGEABLE)) {
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58
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289 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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290 "the duplicate \"%V\" variable", name);
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291 return NULL;
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292 }
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293
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160
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294 return v;
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58
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295 }
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296
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160
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297 v = ngx_palloc(cf->pool, sizeof(ngx_http_variable_t));
|
|
58
|
298 if (v == NULL) {
|
|
|
299 return NULL;
|
|
|
300 }
|
|
|
301
|
|
|
302 v->name.len = name->len;
|
|
382
|
303 v->name.data = ngx_pnalloc(cf->pool, name->len);
|
|
58
|
304 if (v->name.data == NULL) {
|
|
|
305 return NULL;
|
|
|
306 }
|
|
|
307
|
|
392
|
308 ngx_strlow(v->name.data, name->data, name->len);
|
|
58
|
309
|
|
186
|
310 v->set_handler = NULL;
|
|
|
311 v->get_handler = NULL;
|
|
58
|
312 v->data = 0;
|
|
|
313 v->flags = flags;
|
|
82
|
314 v->index = 0;
|
|
58
|
315
|
|
160
|
316 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v, 0);
|
|
|
317
|
|
|
318 if (rc == NGX_ERROR) {
|
|
|
319 return NULL;
|
|
|
320 }
|
|
|
321
|
|
|
322 if (rc == NGX_BUSY) {
|
|
|
323 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
324 "conflicting variable name \"%V\"", name);
|
|
|
325 return NULL;
|
|
|
326 }
|
|
|
327
|
|
58
|
328 return v;
|
|
|
329 }
|
|
|
330
|
|
|
331
|
|
|
332 ngx_int_t
|
|
|
333 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
|
|
48
|
334 {
|
|
50
|
335 ngx_uint_t i;
|
|
|
336 ngx_http_variable_t *v;
|
|
48
|
337 ngx_http_core_main_conf_t *cmcf;
|
|
|
338
|
|
|
339 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
340
|
|
50
|
341 v = cmcf->variables.elts;
|
|
|
342
|
|
|
343 if (v == NULL) {
|
|
48
|
344 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
|
|
454
|
345 sizeof(ngx_http_variable_t))
|
|
|
346 != NGX_OK)
|
|
48
|
347 {
|
|
58
|
348 return NGX_ERROR;
|
|
48
|
349 }
|
|
50
|
350
|
|
|
351 } else {
|
|
|
352 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
353 if (name->len != v[i].name.len
|
|
|
354 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
|
|
|
355 {
|
|
|
356 continue;
|
|
|
357 }
|
|
|
358
|
|
58
|
359 return i;
|
|
50
|
360 }
|
|
48
|
361 }
|
|
|
362
|
|
50
|
363 v = ngx_array_push(&cmcf->variables);
|
|
|
364 if (v == NULL) {
|
|
58
|
365 return NGX_ERROR;
|
|
48
|
366 }
|
|
|
367
|
|
50
|
368 v->name.len = name->len;
|
|
382
|
369 v->name.data = ngx_pnalloc(cf->pool, name->len);
|
|
50
|
370 if (v->name.data == NULL) {
|
|
58
|
371 return NGX_ERROR;
|
|
50
|
372 }
|
|
48
|
373
|
|
392
|
374 ngx_strlow(v->name.data, name->data, name->len);
|
|
50
|
375
|
|
186
|
376 v->set_handler = NULL;
|
|
|
377 v->get_handler = NULL;
|
|
50
|
378 v->data = 0;
|
|
58
|
379 v->flags = 0;
|
|
82
|
380 v->index = cmcf->variables.nelts - 1;
|
|
50
|
381
|
|
58
|
382 return cmcf->variables.nelts - 1;
|
|
48
|
383 }
|
|
|
384
|
|
|
385
|
|
|
386 ngx_http_variable_value_t *
|
|
|
387 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
|
388 {
|
|
50
|
389 ngx_http_variable_t *v;
|
|
48
|
390 ngx_http_core_main_conf_t *cmcf;
|
|
|
391
|
|
|
392 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
393
|
|
102
|
394 if (cmcf->variables.nelts <= index) {
|
|
48
|
395 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
396 "unknown variable index: %d", index);
|
|
|
397 return NULL;
|
|
|
398 }
|
|
|
399
|
|
122
|
400 if (r->variables[index].not_found || r->variables[index].valid) {
|
|
|
401 return &r->variables[index];
|
|
50
|
402 }
|
|
48
|
403
|
|
50
|
404 v = cmcf->variables.elts;
|
|
48
|
405
|
|
186
|
406 if (v[index].get_handler(r, &r->variables[index], v[index].data)
|
|
|
407 == NGX_OK)
|
|
|
408 {
|
|
340
|
409 if (v[index].flags & NGX_HTTP_VAR_NOCACHEABLE) {
|
|
|
410 r->variables[index].no_cacheable = 1;
|
|
48
|
411 }
|
|
122
|
412
|
|
|
413 return &r->variables[index];
|
|
48
|
414 }
|
|
|
415
|
|
206
|
416 r->variables[index].valid = 0;
|
|
|
417 r->variables[index].not_found = 1;
|
|
|
418
|
|
122
|
419 return NULL;
|
|
|
420 }
|
|
|
421
|
|
|
422
|
|
|
423 ngx_http_variable_value_t *
|
|
|
424 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
|
|
|
425 {
|
|
294
|
426 ngx_http_variable_value_t *v;
|
|
122
|
427
|
|
|
428 v = &r->variables[index];
|
|
|
429
|
|
|
430 if (v->valid) {
|
|
340
|
431 if (!v->no_cacheable) {
|
|
122
|
432 return v;
|
|
|
433 }
|
|
|
434
|
|
|
435 v->valid = 0;
|
|
|
436 v->not_found = 0;
|
|
58
|
437 }
|
|
50
|
438
|
|
122
|
439 return ngx_http_get_indexed_variable(r, index);
|
|
48
|
440 }
|
|
|
441
|
|
|
442
|
|
|
443 ngx_http_variable_value_t *
|
|
568
|
444 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name, ngx_uint_t key)
|
|
48
|
445 {
|
|
50
|
446 ngx_http_variable_t *v;
|
|
122
|
447 ngx_http_variable_value_t *vv;
|
|
48
|
448 ngx_http_core_main_conf_t *cmcf;
|
|
|
449
|
|
|
450 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
451
|
|
160
|
452 v = ngx_hash_find(&cmcf->variables_hash, key, name->data, name->len);
|
|
48
|
453
|
|
160
|
454 if (v) {
|
|
|
455 if (v->flags & NGX_HTTP_VAR_INDEXED) {
|
|
568
|
456 return ngx_http_get_flushed_variable(r, v->index);
|
|
68
|
457
|
|
|
458 } else {
|
|
48
|
459
|
|
122
|
460 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
50
|
461
|
|
186
|
462 if (vv && v->get_handler(r, vv, v->data) == NGX_OK) {
|
|
122
|
463 return vv;
|
|
|
464 }
|
|
58
|
465
|
|
122
|
466 return NULL;
|
|
|
467 }
|
|
58
|
468 }
|
|
|
469
|
|
|
470 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
|
|
|
471 if (vv == NULL) {
|
|
|
472 return NULL;
|
|
|
473 }
|
|
|
474
|
|
122
|
475 if (ngx_strncmp(name->data, "http_", 5) == 0) {
|
|
48
|
476
|
|
126
|
477 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name)
|
|
|
478 == NGX_OK)
|
|
|
479 {
|
|
|
480 return vv;
|
|
|
481 }
|
|
|
482
|
|
|
483 return NULL;
|
|
|
484 }
|
|
|
485
|
|
|
486 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) {
|
|
|
487
|
|
|
488 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name)
|
|
|
489 == NGX_OK)
|
|
122
|
490 {
|
|
|
491 return vv;
|
|
|
492 }
|
|
48
|
493
|
|
|
494 return NULL;
|
|
|
495 }
|
|
|
496
|
|
564
|
497 if (ngx_strncmp(name->data, "upstream_http_", 14) == 0) {
|
|
296
|
498
|
|
|
499 if (ngx_http_upstream_header_variable(r, vv, (uintptr_t) name)
|
|
|
500 == NGX_OK)
|
|
|
501 {
|
|
|
502 return vv;
|
|
|
503 }
|
|
|
504
|
|
|
505 return NULL;
|
|
|
506 }
|
|
|
507
|
|
420
|
508 if (ngx_strncmp(name->data, "cookie_", 7) == 0) {
|
|
|
509
|
|
424
|
510 if (ngx_http_variable_cookie(r, vv, (uintptr_t) name) == NGX_OK) {
|
|
420
|
511 return vv;
|
|
|
512 }
|
|
|
513
|
|
|
514 return NULL;
|
|
|
515 }
|
|
|
516
|
|
392
|
517 if (ngx_strncmp(name->data, "arg_", 4) == 0) {
|
|
|
518
|
|
|
519 if (ngx_http_variable_argument(r, vv, (uintptr_t) name) == NGX_OK) {
|
|
|
520 return vv;
|
|
|
521 }
|
|
|
522
|
|
|
523 return NULL;
|
|
|
524 }
|
|
|
525
|
|
184
|
526 vv->not_found = 1;
|
|
122
|
527
|
|
50
|
528 return vv;
|
|
48
|
529 }
|
|
|
530
|
|
|
531
|
|
122
|
532 static ngx_int_t
|
|
|
533 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
534 uintptr_t data)
|
|
|
535 {
|
|
|
536 ngx_str_t *s;
|
|
|
537
|
|
|
538 s = (ngx_str_t *) ((char *) r + data);
|
|
|
539
|
|
|
540 if (s->data) {
|
|
|
541 v->len = s->len;
|
|
|
542 v->valid = 1;
|
|
340
|
543 v->no_cacheable = 0;
|
|
122
|
544 v->not_found = 0;
|
|
|
545 v->data = s->data;
|
|
|
546
|
|
|
547 } else {
|
|
|
548 v->not_found = 1;
|
|
|
549 }
|
|
|
550
|
|
|
551 return NGX_OK;
|
|
|
552 }
|
|
|
553
|
|
|
554
|
|
186
|
555 static void
|
|
324
|
556 ngx_http_variable_request_set(ngx_http_request_t *r,
|
|
|
557 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
558 {
|
|
|
559 ngx_str_t *s;
|
|
|
560
|
|
|
561 s = (ngx_str_t *) ((char *) r + data);
|
|
|
562
|
|
|
563 s->len = v->len;
|
|
|
564 s->data = v->data;
|
|
|
565 }
|
|
|
566
|
|
|
567
|
|
540
|
568 static ngx_int_t
|
|
|
569 ngx_http_variable_request_get_size(ngx_http_request_t *r,
|
|
|
570 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
571 {
|
|
|
572 size_t *sp;
|
|
|
573
|
|
|
574 sp = (size_t *) ((char *) r + data);
|
|
|
575
|
|
|
576 v->data = ngx_pnalloc(r->pool, NGX_SIZE_T_LEN);
|
|
|
577 if (v->data == NULL) {
|
|
|
578 return NGX_ERROR;
|
|
|
579 }
|
|
|
580
|
|
|
581 v->len = ngx_sprintf(v->data, "%uz", *sp) - v->data;
|
|
|
582 v->valid = 1;
|
|
|
583 v->no_cacheable = 0;
|
|
|
584 v->not_found = 0;
|
|
|
585
|
|
|
586 return NGX_OK;
|
|
|
587 }
|
|
|
588
|
|
|
589
|
|
324
|
590 static void
|
|
186
|
591 ngx_http_variable_request_set_size(ngx_http_request_t *r,
|
|
|
592 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
593 {
|
|
|
594 ssize_t s, *sp;
|
|
|
595 ngx_str_t val;
|
|
|
596
|
|
320
|
597 val.len = v->len;
|
|
186
|
598 val.data = v->data;
|
|
|
599
|
|
|
600 s = ngx_parse_size(&val);
|
|
|
601
|
|
|
602 if (s == NGX_ERROR) {
|
|
|
603 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
604 "invalid size \"%V\"", &val);
|
|
|
605 return;
|
|
|
606 }
|
|
|
607
|
|
|
608 sp = (ssize_t *) ((char *) r + data);
|
|
|
609
|
|
|
610 *sp = s;
|
|
|
611
|
|
|
612 return;
|
|
|
613 }
|
|
|
614
|
|
|
615
|
|
122
|
616 static ngx_int_t
|
|
|
617 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
618 uintptr_t data)
|
|
64
|
619 {
|
|
122
|
620 ngx_table_elt_t *h;
|
|
|
621
|
|
|
622 h = *(ngx_table_elt_t **) ((char *) r + data);
|
|
|
623
|
|
|
624 if (h) {
|
|
|
625 v->len = h->value.len;
|
|
|
626 v->valid = 1;
|
|
340
|
627 v->no_cacheable = 0;
|
|
122
|
628 v->not_found = 0;
|
|
|
629 v->data = h->value.data;
|
|
|
630
|
|
|
631 } else {
|
|
|
632 v->not_found = 1;
|
|
|
633 }
|
|
|
634
|
|
|
635 return NGX_OK;
|
|
|
636 }
|
|
|
637
|
|
|
638
|
|
|
639 static ngx_int_t
|
|
|
640 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
641 uintptr_t data)
|
|
|
642 {
|
|
216
|
643 ssize_t len;
|
|
122
|
644 u_char *p;
|
|
216
|
645 ngx_uint_t i, n;
|
|
122
|
646 ngx_array_t *a;
|
|
|
647 ngx_table_elt_t **h;
|
|
64
|
648
|
|
|
649 a = (ngx_array_t *) ((char *) r + data);
|
|
|
650
|
|
216
|
651 n = a->nelts;
|
|
|
652
|
|
|
653 if (n == 0) {
|
|
122
|
654 v->not_found = 1;
|
|
|
655 return NGX_OK;
|
|
64
|
656 }
|
|
|
657
|
|
122
|
658 v->valid = 1;
|
|
340
|
659 v->no_cacheable = 0;
|
|
122
|
660 v->not_found = 0;
|
|
64
|
661
|
|
|
662 h = a->elts;
|
|
|
663
|
|
216
|
664 if (n == 1) {
|
|
122
|
665 v->len = (*h)->value.len;
|
|
|
666 v->data = (*h)->value.data;
|
|
64
|
667
|
|
122
|
668 return NGX_OK;
|
|
64
|
669 }
|
|
|
670
|
|
216
|
671 len = - (ssize_t) (sizeof("; ") - 1);
|
|
122
|
672
|
|
216
|
673 for (i = 0; i < n; i++) {
|
|
122
|
674 len += h[i]->value.len + sizeof("; ") - 1;
|
|
64
|
675 }
|
|
|
676
|
|
382
|
677 p = ngx_pnalloc(r->pool, len);
|
|
122
|
678 if (p == NULL) {
|
|
|
679 return NGX_ERROR;
|
|
|
680 }
|
|
|
681
|
|
|
682 v->len = len;
|
|
|
683 v->data = p;
|
|
64
|
684
|
|
|
685 for (i = 0; /* void */ ; i++) {
|
|
122
|
686 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
|
64
|
687
|
|
216
|
688 if (i == n - 1) {
|
|
64
|
689 break;
|
|
|
690 }
|
|
|
691
|
|
|
692 *p++ = ';'; *p++ = ' ';
|
|
|
693 }
|
|
|
694
|
|
122
|
695 return NGX_OK;
|
|
64
|
696 }
|
|
|
697
|
|
|
698
|
|
122
|
699 static ngx_int_t
|
|
126
|
700 ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
|
701 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
702 {
|
|
|
703 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
704 &r->headers_in.headers.part,
|
|
|
705 sizeof("http_") - 1);
|
|
|
706 }
|
|
|
707
|
|
|
708
|
|
|
709 static ngx_int_t
|
|
|
710 ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
|
122
|
711 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
712 {
|
|
126
|
713 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
714 &r->headers_out.headers.part,
|
|
|
715 sizeof("sent_http_") - 1);
|
|
|
716 }
|
|
50
|
717
|
|
126
|
718
|
|
296
|
719 ngx_int_t
|
|
126
|
720 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var,
|
|
|
721 ngx_list_part_t *part, size_t prefix)
|
|
|
722 {
|
|
122
|
723 u_char ch;
|
|
|
724 ngx_uint_t i, n;
|
|
|
725 ngx_table_elt_t *header;
|
|
48
|
726
|
|
|
727 header = part->elts;
|
|
|
728
|
|
|
729 for (i = 0; /* void */ ; i++) {
|
|
|
730
|
|
|
731 if (i >= part->nelts) {
|
|
|
732 if (part->next == NULL) {
|
|
|
733 break;
|
|
|
734 }
|
|
|
735
|
|
|
736 part = part->next;
|
|
|
737 header = part->elts;
|
|
|
738 i = 0;
|
|
|
739 }
|
|
|
740
|
|
126
|
741 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) {
|
|
48
|
742 ch = header[i].key.data[n];
|
|
|
743
|
|
58
|
744 if (ch >= 'A' && ch <= 'Z') {
|
|
|
745 ch |= 0x20;
|
|
48
|
746
|
|
|
747 } else if (ch == '-') {
|
|
|
748 ch = '_';
|
|
|
749 }
|
|
|
750
|
|
126
|
751 if (var->data[n + prefix] != ch) {
|
|
48
|
752 break;
|
|
|
753 }
|
|
|
754 }
|
|
|
755
|
|
242
|
756 if (n + prefix == var->len && n == header[i].key.len) {
|
|
122
|
757 v->len = header[i].value.len;
|
|
|
758 v->valid = 1;
|
|
340
|
759 v->no_cacheable = 0;
|
|
122
|
760 v->not_found = 0;
|
|
|
761 v->data = header[i].value.data;
|
|
48
|
762
|
|
122
|
763 return NGX_OK;
|
|
48
|
764 }
|
|
|
765 }
|
|
|
766
|
|
122
|
767 v->not_found = 1;
|
|
|
768
|
|
|
769 return NGX_OK;
|
|
58
|
770 }
|
|
|
771
|
|
|
772
|
|
122
|
773 static ngx_int_t
|
|
528
|
774 ngx_http_variable_request_line(ngx_http_request_t *r,
|
|
|
775 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
776 {
|
|
|
777 u_char *p, *s;
|
|
|
778
|
|
|
779 s = r->request_line.data;
|
|
|
780
|
|
|
781 if (s == NULL) {
|
|
|
782 s = r->request_start;
|
|
|
783
|
|
|
784 if (s == NULL) {
|
|
|
785 v->not_found = 1;
|
|
|
786 return NGX_OK;
|
|
|
787 }
|
|
|
788
|
|
|
789 for (p = s; p < r->header_in->last; p++) {
|
|
|
790 if (*p == CR || *p == LF) {
|
|
|
791 break;
|
|
|
792 }
|
|
|
793 }
|
|
|
794
|
|
|
795 r->request_line.len = p - s;
|
|
|
796 r->request_line.data = s;
|
|
|
797 }
|
|
|
798
|
|
|
799 v->len = r->request_line.len;
|
|
|
800 v->valid = 1;
|
|
|
801 v->no_cacheable = 0;
|
|
|
802 v->not_found = 0;
|
|
|
803 v->data = s;
|
|
|
804
|
|
|
805 return NGX_OK;
|
|
|
806 }
|
|
|
807
|
|
|
808
|
|
|
809 static ngx_int_t
|
|
420
|
810 ngx_http_variable_cookie(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
811 uintptr_t data)
|
|
|
812 {
|
|
|
813 ngx_str_t *name = (ngx_str_t *) data;
|
|
|
814
|
|
|
815 ngx_str_t cookie, s;
|
|
|
816
|
|
|
817 s.len = name->len - (sizeof("cookie_") - 1);
|
|
|
818 s.data = name->data + sizeof("cookie_") - 1;
|
|
|
819
|
|
|
820 if (ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &s, &cookie)
|
|
|
821 == NGX_DECLINED)
|
|
|
822 {
|
|
|
823 v->not_found = 1;
|
|
|
824 return NGX_OK;
|
|
|
825 }
|
|
|
826
|
|
|
827 v->len = cookie.len;
|
|
|
828 v->valid = 1;
|
|
|
829 v->no_cacheable = 0;
|
|
|
830 v->not_found = 0;
|
|
|
831 v->data = cookie.data;
|
|
|
832
|
|
|
833 return NGX_OK;
|
|
|
834 }
|
|
|
835
|
|
|
836
|
|
|
837 static ngx_int_t
|
|
392
|
838 ngx_http_variable_argument(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
839 uintptr_t data)
|
|
|
840 {
|
|
|
841 ngx_str_t *name = (ngx_str_t *) data;
|
|
|
842
|
|
432
|
843 u_char *arg;
|
|
|
844 size_t len;
|
|
|
845 ngx_str_t value;
|
|
392
|
846
|
|
432
|
847 len = name->len - (sizeof("arg_") - 1);
|
|
|
848 arg = name->data + sizeof("arg_") - 1;
|
|
|
849
|
|
|
850 if (ngx_http_arg(r, arg, len, &value) != NGX_OK) {
|
|
392
|
851 v->not_found = 1;
|
|
|
852 return NGX_OK;
|
|
|
853 }
|
|
|
854
|
|
432
|
855 v->data = value.data;
|
|
|
856 v->len = value.len;
|
|
|
857 v->valid = 1;
|
|
|
858 v->no_cacheable = 0;
|
|
|
859 v->not_found = 0;
|
|
392
|
860
|
|
|
861 return NGX_OK;
|
|
|
862 }
|
|
|
863
|
|
|
864
|
|
|
865 static ngx_int_t
|
|
122
|
866 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
867 uintptr_t data)
|
|
58
|
868 {
|
|
362
|
869 ngx_http_core_srv_conf_t *cscf;
|
|
|
870
|
|
376
|
871 if (r->headers_in.server.len) {
|
|
|
872 v->len = r->headers_in.server.len;
|
|
|
873 v->data = r->headers_in.server.data;
|
|
270
|
874
|
|
|
875 } else {
|
|
376
|
876 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
877
|
|
|
878 v->len = cscf->server_name.len;
|
|
|
879 v->data = cscf->server_name.data;
|
|
58
|
880 }
|
|
|
881
|
|
122
|
882 v->valid = 1;
|
|
340
|
883 v->no_cacheable = 0;
|
|
122
|
884 v->not_found = 0;
|
|
58
|
885
|
|
122
|
886 return NGX_OK;
|
|
48
|
887 }
|
|
|
888
|
|
|
889
|
|
122
|
890 static ngx_int_t
|
|
272
|
891 ngx_http_variable_binary_remote_addr(ngx_http_request_t *r,
|
|
|
892 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
893 {
|
|
448
|
894 struct sockaddr_in *sin;
|
|
|
895 #if (NGX_HAVE_INET6)
|
|
|
896 struct sockaddr_in6 *sin6;
|
|
|
897 #endif
|
|
272
|
898
|
|
448
|
899 switch (r->connection->sockaddr->sa_family) {
|
|
272
|
900
|
|
448
|
901 #if (NGX_HAVE_INET6)
|
|
|
902 case AF_INET6:
|
|
|
903 sin6 = (struct sockaddr_in6 *) r->connection->sockaddr;
|
|
272
|
904
|
|
448
|
905 v->len = sizeof(struct in6_addr);
|
|
|
906 v->valid = 1;
|
|
|
907 v->no_cacheable = 0;
|
|
|
908 v->not_found = 0;
|
|
540
|
909 v->data = sin6->sin6_addr.s6_addr;
|
|
448
|
910
|
|
|
911 break;
|
|
|
912 #endif
|
|
|
913
|
|
|
914 default: /* AF_INET */
|
|
|
915 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
|
916
|
|
|
917 v->len = sizeof(in_addr_t);
|
|
|
918 v->valid = 1;
|
|
|
919 v->no_cacheable = 0;
|
|
|
920 v->not_found = 0;
|
|
|
921 v->data = (u_char *) &sin->sin_addr;
|
|
|
922
|
|
|
923 break;
|
|
|
924 }
|
|
272
|
925
|
|
|
926 return NGX_OK;
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
|
930 static ngx_int_t
|
|
122
|
931 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
|
932 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
933 {
|
|
122
|
934 v->len = r->connection->addr_text.len;
|
|
|
935 v->valid = 1;
|
|
340
|
936 v->no_cacheable = 0;
|
|
122
|
937 v->not_found = 0;
|
|
|
938 v->data = r->connection->addr_text.data;
|
|
48
|
939
|
|
122
|
940 return NGX_OK;
|
|
48
|
941 }
|
|
|
942
|
|
|
943
|
|
122
|
944 static ngx_int_t
|
|
|
945 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
|
946 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
947 {
|
|
448
|
948 ngx_uint_t port;
|
|
|
949 struct sockaddr_in *sin;
|
|
|
950 #if (NGX_HAVE_INET6)
|
|
|
951 struct sockaddr_in6 *sin6;
|
|
|
952 #endif
|
|
58
|
953
|
|
122
|
954 v->len = 0;
|
|
|
955 v->valid = 1;
|
|
340
|
956 v->no_cacheable = 0;
|
|
122
|
957 v->not_found = 0;
|
|
58
|
958
|
|
382
|
959 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1);
|
|
122
|
960 if (v->data == NULL) {
|
|
|
961 return NGX_ERROR;
|
|
58
|
962 }
|
|
|
963
|
|
448
|
964 switch (r->connection->sockaddr->sa_family) {
|
|
126
|
965
|
|
448
|
966 #if (NGX_HAVE_INET6)
|
|
|
967 case AF_INET6:
|
|
|
968 sin6 = (struct sockaddr_in6 *) r->connection->sockaddr;
|
|
|
969 port = ntohs(sin6->sin6_port);
|
|
|
970 break;
|
|
|
971 #endif
|
|
126
|
972
|
|
448
|
973 default: /* AF_INET */
|
|
|
974 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
58
|
975 port = ntohs(sin->sin_port);
|
|
448
|
976 break;
|
|
|
977 }
|
|
126
|
978
|
|
448
|
979 if (port > 0 && port < 65536) {
|
|
|
980 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
|
58
|
981 }
|
|
|
982
|
|
122
|
983 return NGX_OK;
|
|
58
|
984 }
|
|
|
985
|
|
|
986
|
|
122
|
987 static ngx_int_t
|
|
|
988 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
|
989 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
990 {
|
|
362
|
991 ngx_str_t s;
|
|
448
|
992 u_char addr[NGX_SOCKADDR_STRLEN];
|
|
48
|
993
|
|
448
|
994 s.len = NGX_SOCKADDR_STRLEN;
|
|
|
995 s.data = addr;
|
|
|
996
|
|
492
|
997 if (ngx_connection_local_sockaddr(r->connection, &s, 0) != NGX_OK) {
|
|
448
|
998 return NGX_ERROR;
|
|
|
999 }
|
|
|
1000
|
|
|
1001 s.data = ngx_pnalloc(r->pool, s.len);
|
|
362
|
1002 if (s.data == NULL) {
|
|
122
|
1003 return NGX_ERROR;
|
|
58
|
1004 }
|
|
|
1005
|
|
448
|
1006 ngx_memcpy(s.data, addr, s.len);
|
|
58
|
1007
|
|
362
|
1008 v->len = s.len;
|
|
122
|
1009 v->valid = 1;
|
|
340
|
1010 v->no_cacheable = 0;
|
|
122
|
1011 v->not_found = 0;
|
|
362
|
1012 v->data = s.data;
|
|
48
|
1013
|
|
122
|
1014 return NGX_OK;
|
|
48
|
1015 }
|
|
|
1016
|
|
|
1017
|
|
122
|
1018 static ngx_int_t
|
|
|
1019 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
|
1020 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1021 {
|
|
454
|
1022 ngx_uint_t port;
|
|
|
1023 struct sockaddr_in *sin;
|
|
|
1024 #if (NGX_HAVE_INET6)
|
|
|
1025 struct sockaddr_in6 *sin6;
|
|
|
1026 #endif
|
|
|
1027
|
|
|
1028 v->len = 0;
|
|
122
|
1029 v->valid = 1;
|
|
340
|
1030 v->no_cacheable = 0;
|
|
122
|
1031 v->not_found = 0;
|
|
454
|
1032
|
|
492
|
1033 if (ngx_connection_local_sockaddr(r->connection, NULL, 0) != NGX_OK) {
|
|
454
|
1034 return NGX_ERROR;
|
|
|
1035 }
|
|
|
1036
|
|
|
1037 v->data = ngx_pnalloc(r->pool, sizeof("65535") - 1);
|
|
|
1038 if (v->data == NULL) {
|
|
|
1039 return NGX_ERROR;
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 switch (r->connection->local_sockaddr->sa_family) {
|
|
|
1043
|
|
|
1044 #if (NGX_HAVE_INET6)
|
|
|
1045 case AF_INET6:
|
|
|
1046 sin6 = (struct sockaddr_in6 *) r->connection->local_sockaddr;
|
|
|
1047 port = ntohs(sin6->sin6_port);
|
|
|
1048 break;
|
|
|
1049 #endif
|
|
|
1050
|
|
|
1051 default: /* AF_INET */
|
|
|
1052 sin = (struct sockaddr_in *) r->connection->local_sockaddr;
|
|
|
1053 port = ntohs(sin->sin_port);
|
|
|
1054 break;
|
|
|
1055 }
|
|
|
1056
|
|
|
1057 if (port > 0 && port < 65536) {
|
|
|
1058 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
|
|
1059 }
|
|
58
|
1060
|
|
122
|
1061 return NGX_OK;
|
|
58
|
1062 }
|
|
|
1063
|
|
|
1064
|
|
122
|
1065 static ngx_int_t
|
|
238
|
1066 ngx_http_variable_scheme(ngx_http_request_t *r,
|
|
|
1067 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1068 {
|
|
|
1069 #if (NGX_HTTP_SSL)
|
|
|
1070
|
|
|
1071 if (r->connection->ssl) {
|
|
|
1072 v->len = sizeof("https") - 1;
|
|
|
1073 v->valid = 1;
|
|
340
|
1074 v->no_cacheable = 0;
|
|
238
|
1075 v->not_found = 0;
|
|
|
1076 v->data = (u_char *) "https";
|
|
|
1077
|
|
|
1078 return NGX_OK;
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 #endif
|
|
|
1082
|
|
|
1083 v->len = sizeof("http") - 1;
|
|
|
1084 v->valid = 1;
|
|
340
|
1085 v->no_cacheable = 0;
|
|
238
|
1086 v->not_found = 0;
|
|
|
1087 v->data = (u_char *) "http";
|
|
|
1088
|
|
|
1089 return NGX_OK;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092
|
|
|
1093 static ngx_int_t
|
|
324
|
1094 ngx_http_variable_is_args(ngx_http_request_t *r,
|
|
|
1095 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1096 {
|
|
|
1097 v->valid = 1;
|
|
340
|
1098 v->no_cacheable = 0;
|
|
324
|
1099 v->not_found = 0;
|
|
|
1100
|
|
|
1101 if (r->args.len == 0) {
|
|
|
1102 v->len = 0;
|
|
|
1103 v->data = NULL;
|
|
|
1104 return NGX_OK;
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 v->len = 1;
|
|
|
1108 v->data = (u_char *) "?";
|
|
|
1109
|
|
|
1110 return NGX_OK;
|
|
|
1111 }
|
|
|
1112
|
|
|
1113
|
|
|
1114 static ngx_int_t
|
|
122
|
1115 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
|
1116 ngx_http_variable_value_t *v, uintptr_t data)
|
|
48
|
1117 {
|
|
220
|
1118 ngx_str_t path;
|
|
122
|
1119 ngx_http_core_loc_conf_t *clcf;
|
|
58
|
1120
|
|
|
1121 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1122
|
|
220
|
1123 if (clcf->root_lengths == NULL) {
|
|
|
1124 v->len = clcf->root.len;
|
|
|
1125 v->valid = 1;
|
|
340
|
1126 v->no_cacheable = 0;
|
|
220
|
1127 v->not_found = 0;
|
|
|
1128 v->data = clcf->root.data;
|
|
|
1129
|
|
|
1130 } else {
|
|
|
1131 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 0,
|
|
|
1132 clcf->root_values->elts)
|
|
|
1133 == NULL)
|
|
|
1134 {
|
|
|
1135 return NGX_ERROR;
|
|
|
1136 }
|
|
|
1137
|
|
454
|
1138 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) != NGX_OK) {
|
|
220
|
1139 return NGX_ERROR;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 v->len = path.len;
|
|
|
1143 v->valid = 1;
|
|
340
|
1144 v->no_cacheable = 0;
|
|
220
|
1145 v->not_found = 0;
|
|
|
1146 v->data = path.data;
|
|
|
1147 }
|
|
58
|
1148
|
|
122
|
1149 return NGX_OK;
|
|
58
|
1150 }
|
|
|
1151
|
|
|
1152
|
|
122
|
1153 static ngx_int_t
|
|
412
|
1154 ngx_http_variable_realpath_root(ngx_http_request_t *r,
|
|
|
1155 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1156 {
|
|
|
1157 size_t len;
|
|
|
1158 ngx_str_t path;
|
|
|
1159 ngx_http_core_loc_conf_t *clcf;
|
|
|
1160 u_char real[NGX_MAX_PATH];
|
|
|
1161
|
|
|
1162 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1163
|
|
|
1164 if (clcf->root_lengths == NULL) {
|
|
|
1165 path = clcf->root;
|
|
|
1166
|
|
|
1167 } else {
|
|
|
1168 if (ngx_http_script_run(r, &path, clcf->root_lengths->elts, 1,
|
|
|
1169 clcf->root_values->elts)
|
|
|
1170 == NULL)
|
|
|
1171 {
|
|
|
1172 return NGX_ERROR;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 path.data[path.len - 1] = '\0';
|
|
|
1176
|
|
454
|
1177 if (ngx_conf_full_name((ngx_cycle_t *) ngx_cycle, &path, 0) != NGX_OK) {
|
|
412
|
1178 return NGX_ERROR;
|
|
|
1179 }
|
|
|
1180 }
|
|
|
1181
|
|
|
1182 if (ngx_realpath(path.data, real) == NULL) {
|
|
|
1183 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
1184 ngx_realpath_n " \"%s\" failed", path.data);
|
|
|
1185 return NGX_ERROR;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 len = ngx_strlen(real);
|
|
|
1189
|
|
|
1190 v->data = ngx_pnalloc(r->pool, len);
|
|
|
1191 if (v->data == NULL) {
|
|
|
1192 return NGX_ERROR;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 v->len = len;
|
|
|
1196 v->valid = 1;
|
|
|
1197 v->no_cacheable = 0;
|
|
|
1198 v->not_found = 0;
|
|
|
1199
|
|
|
1200 ngx_memcpy(v->data, real, len);
|
|
|
1201
|
|
|
1202 return NGX_OK;
|
|
|
1203 }
|
|
|
1204
|
|
|
1205
|
|
|
1206 static ngx_int_t
|
|
122
|
1207 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
|
1208 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1209 {
|
|
248
|
1210 size_t root;
|
|
122
|
1211 ngx_str_t path;
|
|
48
|
1212
|
|
248
|
1213 if (ngx_http_map_uri_to_path(r, &path, &root, 0) == NULL) {
|
|
122
|
1214 return NGX_ERROR;
|
|
106
|
1215 }
|
|
58
|
1216
|
|
106
|
1217 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
|
58
|
1218
|
|
122
|
1219 v->len = path.len - 1;
|
|
|
1220 v->valid = 1;
|
|
340
|
1221 v->no_cacheable = 0;
|
|
122
|
1222 v->not_found = 0;
|
|
|
1223 v->data = path.data;
|
|
48
|
1224
|
|
122
|
1225 return NGX_OK;
|
|
48
|
1226 }
|
|
|
1227
|
|
|
1228
|
|
122
|
1229 static ngx_int_t
|
|
362
|
1230 ngx_http_variable_server_name(ngx_http_request_t *r,
|
|
|
1231 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1232 {
|
|
|
1233 ngx_http_core_srv_conf_t *cscf;
|
|
|
1234
|
|
|
1235 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1236
|
|
|
1237 v->len = cscf->server_name.len;
|
|
|
1238 v->valid = 1;
|
|
|
1239 v->no_cacheable = 0;
|
|
|
1240 v->not_found = 0;
|
|
|
1241 v->data = cscf->server_name.data;
|
|
|
1242
|
|
|
1243 return NGX_OK;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246
|
|
|
1247 static ngx_int_t
|
|
122
|
1248 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
|
1249 ngx_http_variable_value_t *v, uintptr_t data)
|
|
110
|
1250 {
|
|
196
|
1251 if (r->main->method_name.data) {
|
|
|
1252 v->len = r->main->method_name.len;
|
|
122
|
1253 v->valid = 1;
|
|
340
|
1254 v->no_cacheable = 0;
|
|
122
|
1255 v->not_found = 0;
|
|
196
|
1256 v->data = r->main->method_name.data;
|
|
122
|
1257
|
|
|
1258 } else {
|
|
|
1259 v->not_found = 1;
|
|
110
|
1260 }
|
|
|
1261
|
|
122
|
1262 return NGX_OK;
|
|
110
|
1263 }
|
|
|
1264
|
|
|
1265
|
|
122
|
1266 static ngx_int_t
|
|
|
1267 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
|
1268 ngx_http_variable_value_t *v, uintptr_t data)
|
|
88
|
1269 {
|
|
122
|
1270 ngx_int_t rc;
|
|
88
|
1271
|
|
|
1272 rc = ngx_http_auth_basic_user(r);
|
|
|
1273
|
|
|
1274 if (rc == NGX_DECLINED) {
|
|
122
|
1275 v->not_found = 1;
|
|
|
1276 return NGX_OK;
|
|
88
|
1277 }
|
|
|
1278
|
|
|
1279 if (rc == NGX_ERROR) {
|
|
122
|
1280 return NGX_ERROR;
|
|
88
|
1281 }
|
|
|
1282
|
|
122
|
1283 v->len = r->headers_in.user.len;
|
|
|
1284 v->valid = 1;
|
|
340
|
1285 v->no_cacheable = 0;
|
|
122
|
1286 v->not_found = 0;
|
|
|
1287 v->data = r->headers_in.user.data;
|
|
120
|
1288
|
|
122
|
1289 return NGX_OK;
|
|
120
|
1290 }
|
|
|
1291
|
|
|
1292
|
|
160
|
1293 static ngx_int_t
|
|
|
1294 ngx_http_variable_body_bytes_sent(ngx_http_request_t *r,
|
|
|
1295 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1296 {
|
|
|
1297 off_t sent;
|
|
|
1298 u_char *p;
|
|
|
1299
|
|
|
1300 sent = r->connection->sent - r->header_size;
|
|
|
1301
|
|
|
1302 if (sent < 0) {
|
|
|
1303 sent = 0;
|
|
|
1304 }
|
|
|
1305
|
|
382
|
1306 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
|
160
|
1307 if (p == NULL) {
|
|
|
1308 return NGX_ERROR;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 v->len = ngx_sprintf(p, "%O", sent) - p;
|
|
|
1312 v->valid = 1;
|
|
340
|
1313 v->no_cacheable = 0;
|
|
160
|
1314 v->not_found = 0;
|
|
|
1315 v->data = p;
|
|
|
1316
|
|
|
1317 return NGX_OK;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320
|
|
178
|
1321 static ngx_int_t
|
|
190
|
1322 ngx_http_variable_sent_content_type(ngx_http_request_t *r,
|
|
|
1323 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1324 {
|
|
|
1325 if (r->headers_out.content_type.len) {
|
|
|
1326 v->len = r->headers_out.content_type.len;
|
|
|
1327 v->valid = 1;
|
|
340
|
1328 v->no_cacheable = 0;
|
|
190
|
1329 v->not_found = 0;
|
|
|
1330 v->data = r->headers_out.content_type.data;
|
|
|
1331
|
|
|
1332 } else {
|
|
|
1333 v->not_found = 1;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 return NGX_OK;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339
|
|
|
1340 static ngx_int_t
|
|
|
1341 ngx_http_variable_sent_content_length(ngx_http_request_t *r,
|
|
|
1342 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1343 {
|
|
|
1344 u_char *p;
|
|
|
1345
|
|
|
1346 if (r->headers_out.content_length) {
|
|
|
1347 v->len = r->headers_out.content_length->value.len;
|
|
|
1348 v->valid = 1;
|
|
340
|
1349 v->no_cacheable = 0;
|
|
190
|
1350 v->not_found = 0;
|
|
|
1351 v->data = r->headers_out.content_length->value.data;
|
|
|
1352
|
|
|
1353 return NGX_OK;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356 if (r->headers_out.content_length_n >= 0) {
|
|
382
|
1357 p = ngx_pnalloc(r->pool, NGX_OFF_T_LEN);
|
|
190
|
1358 if (p == NULL) {
|
|
|
1359 return NGX_ERROR;
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 v->len = ngx_sprintf(p, "%O", r->headers_out.content_length_n) - p;
|
|
|
1363 v->valid = 1;
|
|
340
|
1364 v->no_cacheable = 0;
|
|
190
|
1365 v->not_found = 0;
|
|
|
1366 v->data = p;
|
|
|
1367
|
|
|
1368 return NGX_OK;
|
|
|
1369 }
|
|
|
1370
|
|
|
1371 v->not_found = 1;
|
|
|
1372
|
|
|
1373 return NGX_OK;
|
|
|
1374 }
|
|
|
1375
|
|
|
1376
|
|
|
1377 static ngx_int_t
|
|
442
|
1378 ngx_http_variable_sent_location(ngx_http_request_t *r,
|
|
|
1379 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1380 {
|
|
454
|
1381 ngx_str_t name;
|
|
|
1382
|
|
442
|
1383 if (r->headers_out.location) {
|
|
|
1384 v->len = r->headers_out.location->value.len;
|
|
|
1385 v->valid = 1;
|
|
|
1386 v->no_cacheable = 0;
|
|
|
1387 v->not_found = 0;
|
|
|
1388 v->data = r->headers_out.location->value.data;
|
|
|
1389
|
|
|
1390 return NGX_OK;
|
|
|
1391 }
|
|
|
1392
|
|
570
|
1393 ngx_str_set(&name, "sent_http_location");
|
|
454
|
1394
|
|
|
1395 return ngx_http_variable_unknown_header(v, &name,
|
|
442
|
1396 &r->headers_out.headers.part,
|
|
|
1397 sizeof("sent_http_") - 1);
|
|
|
1398 }
|
|
|
1399
|
|
|
1400
|
|
|
1401 static ngx_int_t
|
|
190
|
1402 ngx_http_variable_sent_last_modified(ngx_http_request_t *r,
|
|
|
1403 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1404 {
|
|
|
1405 u_char *p;
|
|
|
1406
|
|
|
1407 if (r->headers_out.last_modified) {
|
|
|
1408 v->len = r->headers_out.last_modified->value.len;
|
|
|
1409 v->valid = 1;
|
|
340
|
1410 v->no_cacheable = 0;
|
|
190
|
1411 v->not_found = 0;
|
|
|
1412 v->data = r->headers_out.last_modified->value.data;
|
|
|
1413
|
|
|
1414 return NGX_OK;
|
|
|
1415 }
|
|
|
1416
|
|
|
1417 if (r->headers_out.last_modified_time >= 0) {
|
|
382
|
1418 p = ngx_pnalloc(r->pool,
|
|
190
|
1419 sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT") - 1);
|
|
|
1420 if (p == NULL) {
|
|
|
1421 return NGX_ERROR;
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 v->len = ngx_http_time(p, r->headers_out.last_modified_time) - p;
|
|
|
1425 v->valid = 1;
|
|
340
|
1426 v->no_cacheable = 0;
|
|
190
|
1427 v->not_found = 0;
|
|
|
1428 v->data = p;
|
|
|
1429
|
|
|
1430 return NGX_OK;
|
|
|
1431 }
|
|
|
1432
|
|
|
1433 v->not_found = 1;
|
|
|
1434
|
|
|
1435 return NGX_OK;
|
|
|
1436 }
|
|
|
1437
|
|
|
1438
|
|
|
1439 static ngx_int_t
|
|
|
1440 ngx_http_variable_sent_connection(ngx_http_request_t *r,
|
|
|
1441 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1442 {
|
|
|
1443 size_t len;
|
|
|
1444 char *p;
|
|
|
1445
|
|
|
1446 if (r->keepalive) {
|
|
|
1447 len = sizeof("keep-alive") - 1;
|
|
|
1448 p = "keep-alive";
|
|
|
1449
|
|
|
1450 } else {
|
|
|
1451 len = sizeof("close") - 1;
|
|
|
1452 p = "close";
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 v->len = len;
|
|
|
1456 v->valid = 1;
|
|
340
|
1457 v->no_cacheable = 0;
|
|
190
|
1458 v->not_found = 0;
|
|
|
1459 v->data = (u_char *) p;
|
|
|
1460
|
|
|
1461 return NGX_OK;
|
|
|
1462 }
|
|
|
1463
|
|
|
1464
|
|
|
1465 static ngx_int_t
|
|
|
1466 ngx_http_variable_sent_keep_alive(ngx_http_request_t *r,
|
|
|
1467 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1468 {
|
|
|
1469 u_char *p;
|
|
|
1470 ngx_http_core_loc_conf_t *clcf;
|
|
|
1471
|
|
|
1472 if (r->keepalive) {
|
|
|
1473 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1474
|
|
|
1475 if (clcf->keepalive_header) {
|
|
|
1476
|
|
382
|
1477 p = ngx_pnalloc(r->pool, sizeof("timeout=") - 1 + NGX_TIME_T_LEN);
|
|
190
|
1478 if (p == NULL) {
|
|
|
1479 return NGX_ERROR;
|
|
|
1480 }
|
|
|
1481
|
|
|
1482 v->len = ngx_sprintf(p, "timeout=%T", clcf->keepalive_header) - p;
|
|
|
1483 v->valid = 1;
|
|
340
|
1484 v->no_cacheable = 0;
|
|
190
|
1485 v->not_found = 0;
|
|
|
1486 v->data = p;
|
|
|
1487
|
|
|
1488 return NGX_OK;
|
|
|
1489 }
|
|
|
1490 }
|
|
|
1491
|
|
|
1492 v->not_found = 1;
|
|
|
1493
|
|
|
1494 return NGX_OK;
|
|
|
1495 }
|
|
|
1496
|
|
|
1497
|
|
|
1498 static ngx_int_t
|
|
|
1499 ngx_http_variable_sent_transfer_encoding(ngx_http_request_t *r,
|
|
|
1500 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1501 {
|
|
|
1502 if (r->chunked) {
|
|
|
1503 v->len = sizeof("chunked") - 1;
|
|
|
1504 v->valid = 1;
|
|
340
|
1505 v->no_cacheable = 0;
|
|
190
|
1506 v->not_found = 0;
|
|
|
1507 v->data = (u_char *) "chunked";
|
|
|
1508
|
|
|
1509 } else {
|
|
|
1510 v->not_found = 1;
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 return NGX_OK;
|
|
|
1514 }
|
|
|
1515
|
|
|
1516
|
|
|
1517 static ngx_int_t
|
|
178
|
1518 ngx_http_variable_request_completion(ngx_http_request_t *r,
|
|
|
1519 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1520 {
|
|
|
1521 if (r->request_complete) {
|
|
|
1522 v->len = 2;
|
|
|
1523 v->valid = 1;
|
|
340
|
1524 v->no_cacheable = 0;
|
|
178
|
1525 v->not_found = 0;
|
|
|
1526 v->data = (u_char *) "OK";
|
|
|
1527
|
|
|
1528 return NGX_OK;
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 v->len = 0;
|
|
|
1532 v->valid = 1;
|
|
340
|
1533 v->no_cacheable = 0;
|
|
178
|
1534 v->not_found = 0;
|
|
|
1535 v->data = (u_char *) "";
|
|
|
1536
|
|
|
1537 return NGX_OK;
|
|
|
1538 }
|
|
|
1539
|
|
|
1540
|
|
244
|
1541 static ngx_int_t
|
|
492
|
1542 ngx_http_variable_request_body(ngx_http_request_t *r,
|
|
|
1543 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1544 {
|
|
|
1545 u_char *p;
|
|
|
1546 size_t len;
|
|
|
1547 ngx_buf_t *buf, *next;
|
|
|
1548 ngx_chain_t *cl;
|
|
|
1549
|
|
494
|
1550 if (r->request_body == NULL
|
|
|
1551 || r->request_body->bufs == NULL
|
|
|
1552 || r->request_body->temp_file)
|
|
|
1553 {
|
|
492
|
1554 v->not_found = 1;
|
|
|
1555
|
|
|
1556 return NGX_OK;
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 cl = r->request_body->bufs;
|
|
|
1560 buf = cl->buf;
|
|
|
1561
|
|
|
1562 if (cl->next == NULL) {
|
|
|
1563 v->len = buf->last - buf->pos;
|
|
|
1564 v->valid = 1;
|
|
|
1565 v->no_cacheable = 0;
|
|
|
1566 v->not_found = 0;
|
|
|
1567 v->data = buf->pos;
|
|
|
1568
|
|
|
1569 return NGX_OK;
|
|
|
1570 }
|
|
|
1571
|
|
|
1572 next = cl->next->buf;
|
|
|
1573 len = (buf->last - buf->pos) + (next->last - next->pos);
|
|
|
1574
|
|
|
1575 p = ngx_pnalloc(r->pool, len);
|
|
|
1576 if (p == NULL) {
|
|
|
1577 return NGX_ERROR;
|
|
|
1578 }
|
|
|
1579
|
|
|
1580 v->data = p;
|
|
|
1581
|
|
|
1582 p = ngx_cpymem(p, buf->pos, buf->last - buf->pos);
|
|
|
1583 ngx_memcpy(p, next->pos, next->last - next->pos);
|
|
|
1584
|
|
|
1585 v->len = len;
|
|
|
1586 v->valid = 1;
|
|
|
1587 v->no_cacheable = 0;
|
|
|
1588 v->not_found = 0;
|
|
|
1589
|
|
|
1590 return NGX_OK;
|
|
|
1591 }
|
|
|
1592
|
|
|
1593
|
|
|
1594 static ngx_int_t
|
|
244
|
1595 ngx_http_variable_request_body_file(ngx_http_request_t *r,
|
|
|
1596 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1597 {
|
|
|
1598 if (r->request_body == NULL || r->request_body->temp_file == NULL) {
|
|
246
|
1599 v->not_found = 1;
|
|
244
|
1600
|
|
|
1601 return NGX_OK;
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 v->len = r->request_body->temp_file->file.name.len;
|
|
|
1605 v->valid = 1;
|
|
340
|
1606 v->no_cacheable = 0;
|
|
244
|
1607 v->not_found = 0;
|
|
|
1608 v->data = r->request_body->temp_file->file.name.data;
|
|
|
1609
|
|
|
1610 return NGX_OK;
|
|
|
1611 }
|
|
|
1612
|
|
|
1613
|
|
322
|
1614 static ngx_int_t
|
|
|
1615 ngx_http_variable_nginx_version(ngx_http_request_t *r,
|
|
|
1616 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1617 {
|
|
|
1618 v->len = sizeof(NGINX_VERSION) - 1;
|
|
|
1619 v->valid = 1;
|
|
340
|
1620 v->no_cacheable = 0;
|
|
322
|
1621 v->not_found = 0;
|
|
|
1622 v->data = (u_char *) NGINX_VERSION;
|
|
|
1623
|
|
|
1624 return NGX_OK;
|
|
|
1625 }
|
|
|
1626
|
|
|
1627
|
|
376
|
1628 static ngx_int_t
|
|
|
1629 ngx_http_variable_hostname(ngx_http_request_t *r,
|
|
|
1630 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1631 {
|
|
|
1632 v->len = ngx_cycle->hostname.len;
|
|
|
1633 v->valid = 1;
|
|
|
1634 v->no_cacheable = 0;
|
|
|
1635 v->not_found = 0;
|
|
|
1636 v->data = ngx_cycle->hostname.data;
|
|
|
1637
|
|
|
1638 return NGX_OK;
|
|
|
1639 }
|
|
|
1640
|
|
|
1641
|
|
410
|
1642 static ngx_int_t
|
|
|
1643 ngx_http_variable_pid(ngx_http_request_t *r,
|
|
|
1644 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1645 {
|
|
|
1646 u_char *p;
|
|
|
1647
|
|
|
1648 p = ngx_pnalloc(r->pool, NGX_INT64_LEN);
|
|
|
1649 if (p == NULL) {
|
|
|
1650 return NGX_ERROR;
|
|
|
1651 }
|
|
|
1652
|
|
|
1653 v->len = ngx_sprintf(p, "%P", ngx_pid) - p;
|
|
|
1654 v->valid = 1;
|
|
|
1655 v->no_cacheable = 0;
|
|
|
1656 v->not_found = 0;
|
|
|
1657 v->data = p;
|
|
|
1658
|
|
|
1659 return NGX_OK;
|
|
|
1660 }
|
|
|
1661
|
|
|
1662
|
|
552
|
1663 #if (NGX_PCRE)
|
|
|
1664
|
|
546
|
1665 static ngx_int_t
|
|
|
1666 ngx_http_variable_not_found(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
1667 uintptr_t data)
|
|
|
1668 {
|
|
|
1669 v->not_found = 1;
|
|
|
1670 return NGX_OK;
|
|
|
1671 }
|
|
|
1672
|
|
|
1673
|
|
|
1674 ngx_http_regex_t *
|
|
|
1675 ngx_http_regex_compile(ngx_conf_t *cf, ngx_regex_compile_t *rc)
|
|
|
1676 {
|
|
|
1677 u_char *p;
|
|
|
1678 size_t size;
|
|
|
1679 ngx_str_t name;
|
|
|
1680 ngx_uint_t i, n;
|
|
|
1681 ngx_http_variable_t *v;
|
|
|
1682 ngx_http_regex_t *re;
|
|
|
1683 ngx_http_regex_variable_t *rv;
|
|
|
1684 ngx_http_core_main_conf_t *cmcf;
|
|
|
1685
|
|
|
1686 rc->pool = cf->pool;
|
|
|
1687
|
|
|
1688 if (ngx_regex_compile(rc) != NGX_OK) {
|
|
|
1689 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%V", &rc->err);
|
|
|
1690 return NULL;
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 re = ngx_pcalloc(cf->pool, sizeof(ngx_http_regex_t));
|
|
|
1694 if (re == NULL) {
|
|
|
1695 return NULL;
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 re->regex = rc->regex;
|
|
|
1699 re->ncaptures = rc->captures;
|
|
|
1700
|
|
|
1701 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1702 cmcf->ncaptures = ngx_max(cmcf->ncaptures, re->ncaptures);
|
|
|
1703
|
|
|
1704 n = (ngx_uint_t) rc->named_captures;
|
|
|
1705
|
|
|
1706 if (n == 0) {
|
|
|
1707 return re;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 rv = ngx_palloc(rc->pool, n * sizeof(ngx_http_regex_variable_t));
|
|
|
1711 if (rv == NULL) {
|
|
|
1712 return NULL;
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 re->variables = rv;
|
|
|
1716 re->nvariables = n;
|
|
|
1717 re->name = rc->pattern;
|
|
|
1718
|
|
|
1719 size = rc->name_size;
|
|
|
1720 p = rc->names;
|
|
|
1721
|
|
|
1722 for (i = 0; i < n; i++) {
|
|
|
1723 rv[i].capture = 2 * ((p[0] << 8) + p[1]);
|
|
|
1724
|
|
|
1725 name.data = &p[2];
|
|
|
1726 name.len = ngx_strlen(name.data);
|
|
|
1727
|
|
|
1728 v = ngx_http_add_variable(cf, &name, NGX_HTTP_VAR_CHANGEABLE);
|
|
|
1729 if (v == NULL) {
|
|
|
1730 return NULL;
|
|
|
1731 }
|
|
|
1732
|
|
|
1733 rv[i].index = ngx_http_get_variable_index(cf, &name);
|
|
|
1734 if (rv[i].index == NGX_ERROR) {
|
|
|
1735 return NULL;
|
|
|
1736 }
|
|
|
1737
|
|
|
1738 v->get_handler = ngx_http_variable_not_found;
|
|
|
1739
|
|
560
|
1740 p += size;
|
|
546
|
1741 }
|
|
|
1742
|
|
|
1743 return re;
|
|
|
1744 }
|
|
|
1745
|
|
|
1746
|
|
|
1747 ngx_int_t
|
|
|
1748 ngx_http_regex_exec(ngx_http_request_t *r, ngx_http_regex_t *re, ngx_str_t *s)
|
|
|
1749 {
|
|
|
1750 ngx_int_t rc, index;
|
|
|
1751 ngx_uint_t i, n, len;
|
|
|
1752 ngx_http_variable_value_t *vv;
|
|
|
1753 ngx_http_core_main_conf_t *cmcf;
|
|
|
1754
|
|
|
1755 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1756
|
|
|
1757 if (re->ncaptures) {
|
|
548
|
1758 len = cmcf->ncaptures;
|
|
546
|
1759
|
|
|
1760 if (r->captures == NULL) {
|
|
|
1761 r->captures = ngx_palloc(r->pool, len * sizeof(int));
|
|
|
1762 if (r->captures == NULL) {
|
|
|
1763 return NGX_ERROR;
|
|
|
1764 }
|
|
|
1765 }
|
|
|
1766
|
|
|
1767 } else {
|
|
|
1768 len = 0;
|
|
|
1769 }
|
|
|
1770
|
|
|
1771 rc = ngx_regex_exec(re->regex, s, r->captures, len);
|
|
|
1772
|
|
|
1773 if (rc == NGX_REGEX_NO_MATCHED) {
|
|
|
1774 return NGX_DECLINED;
|
|
|
1775 }
|
|
|
1776
|
|
|
1777 if (rc < 0) {
|
|
|
1778 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1779 ngx_regex_exec_n " failed: %i on \"%V\" using \"%V\"",
|
|
|
1780 rc, s, &re->name);
|
|
|
1781 return NGX_ERROR;
|
|
|
1782 }
|
|
|
1783
|
|
|
1784 for (i = 0; i < re->nvariables; i++) {
|
|
|
1785
|
|
|
1786 n = re->variables[i].capture;
|
|
|
1787 index = re->variables[i].index;
|
|
|
1788 vv = &r->variables[index];
|
|
|
1789
|
|
|
1790 vv->len = r->captures[n + 1] - r->captures[n];
|
|
|
1791 vv->valid = 1;
|
|
|
1792 vv->no_cacheable = 0;
|
|
|
1793 vv->not_found = 0;
|
|
|
1794 vv->data = &s->data[r->captures[n]];
|
|
|
1795
|
|
|
1796 #if (NGX_DEBUG)
|
|
|
1797 {
|
|
|
1798 ngx_http_variable_t *v;
|
|
|
1799
|
|
|
1800 v = cmcf->variables.elts;
|
|
|
1801
|
|
|
1802 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1803 "http regex set $%V to \"%*s\"",
|
|
|
1804 &v[index].name, vv->len, vv->data);
|
|
|
1805 }
|
|
|
1806 #endif
|
|
|
1807 }
|
|
|
1808
|
|
548
|
1809 r->ncaptures = rc * 2;
|
|
546
|
1810 r->captures_data = s->data;
|
|
|
1811
|
|
|
1812 return NGX_OK;
|
|
|
1813 }
|
|
|
1814
|
|
552
|
1815 #endif
|
|
|
1816
|
|
546
|
1817
|
|
48
|
1818 ngx_int_t
|
|
58
|
1819 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
|
48
|
1820 {
|
|
160
|
1821 ngx_int_t rc;
|
|
|
1822 ngx_http_variable_t *v;
|
|
50
|
1823 ngx_http_core_main_conf_t *cmcf;
|
|
48
|
1824
|
|
58
|
1825 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1826
|
|
160
|
1827 cmcf->variables_keys = ngx_pcalloc(cf->temp_pool,
|
|
|
1828 sizeof(ngx_hash_keys_arrays_t));
|
|
|
1829 if (cmcf->variables_keys == NULL) {
|
|
|
1830 return NGX_ERROR;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 cmcf->variables_keys->pool = cf->pool;
|
|
|
1834 cmcf->variables_keys->temp_pool = cf->pool;
|
|
|
1835
|
|
|
1836 if (ngx_hash_keys_array_init(cmcf->variables_keys, NGX_HASH_SMALL)
|
|
|
1837 != NGX_OK)
|
|
58
|
1838 {
|
|
48
|
1839 return NGX_ERROR;
|
|
|
1840 }
|
|
|
1841
|
|
160
|
1842 for (v = ngx_http_core_variables; v->name.len; v++) {
|
|
|
1843 rc = ngx_hash_add_key(cmcf->variables_keys, &v->name, v,
|
|
|
1844 NGX_HASH_READONLY_KEY);
|
|
|
1845
|
|
|
1846 if (rc == NGX_OK) {
|
|
|
1847 continue;
|
|
48
|
1848 }
|
|
|
1849
|
|
160
|
1850 if (rc == NGX_BUSY) {
|
|
|
1851 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1852 "conflicting variable name \"%V\"", &v->name);
|
|
|
1853 }
|
|
|
1854
|
|
|
1855 return NGX_ERROR;
|
|
48
|
1856 }
|
|
|
1857
|
|
|
1858 return NGX_OK;
|
|
|
1859 }
|
|
58
|
1860
|
|
|
1861
|
|
|
1862 ngx_int_t
|
|
|
1863 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
|
1864 {
|
|
|
1865 ngx_uint_t i, n;
|
|
160
|
1866 ngx_hash_key_t *key;
|
|
|
1867 ngx_hash_init_t hash;
|
|
58
|
1868 ngx_http_variable_t *v, *av;
|
|
|
1869 ngx_http_core_main_conf_t *cmcf;
|
|
|
1870
|
|
|
1871 /* set the handlers for the indexed http variables */
|
|
|
1872
|
|
|
1873 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
1874
|
|
|
1875 v = cmcf->variables.elts;
|
|
160
|
1876 key = cmcf->variables_keys->keys.elts;
|
|
58
|
1877
|
|
|
1878 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
1879
|
|
160
|
1880 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
58
|
1881
|
|
300
|
1882 av = key[n].value;
|
|
|
1883
|
|
|
1884 if (av->get_handler
|
|
|
1885 && v[i].name.len == key[n].key.len
|
|
160
|
1886 && ngx_strncmp(v[i].name.data, key[n].key.data, v[i].name.len)
|
|
58
|
1887 == 0)
|
|
|
1888 {
|
|
186
|
1889 v[i].get_handler = av->get_handler;
|
|
160
|
1890 v[i].data = av->data;
|
|
76
|
1891
|
|
160
|
1892 av->flags |= NGX_HTTP_VAR_INDEXED;
|
|
|
1893 v[i].flags = av->flags;
|
|
58
|
1894
|
|
160
|
1895 av->index = i;
|
|
82
|
1896
|
|
58
|
1897 goto next;
|
|
|
1898 }
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
|
186
|
1902 v[i].get_handler = ngx_http_variable_unknown_header_in;
|
|
126
|
1903 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1904
|
|
|
1905 continue;
|
|
|
1906 }
|
|
|
1907
|
|
|
1908 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) {
|
|
186
|
1909 v[i].get_handler = ngx_http_variable_unknown_header_out;
|
|
58
|
1910 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1911
|
|
|
1912 continue;
|
|
|
1913 }
|
|
|
1914
|
|
296
|
1915 if (ngx_strncmp(v[i].name.data, "upstream_http_", 14) == 0) {
|
|
|
1916 v[i].get_handler = ngx_http_upstream_header_variable;
|
|
|
1917 v[i].data = (uintptr_t) &v[i].name;
|
|
340
|
1918 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE;
|
|
296
|
1919
|
|
|
1920 continue;
|
|
|
1921 }
|
|
|
1922
|
|
420
|
1923 if (ngx_strncmp(v[i].name.data, "cookie_", 7) == 0) {
|
|
|
1924 v[i].get_handler = ngx_http_variable_cookie;
|
|
|
1925 v[i].data = (uintptr_t) &v[i].name;
|
|
|
1926
|
|
|
1927 continue;
|
|
|
1928 }
|
|
|
1929
|
|
392
|
1930 if (ngx_strncmp(v[i].name.data, "arg_", 4) == 0) {
|
|
|
1931 v[i].get_handler = ngx_http_variable_argument;
|
|
|
1932 v[i].data = (uintptr_t) &v[i].name;
|
|
568
|
1933 v[i].flags = NGX_HTTP_VAR_NOCACHEABLE;
|
|
392
|
1934
|
|
|
1935 continue;
|
|
|
1936 }
|
|
|
1937
|
|
58
|
1938 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
|
1939 "unknown \"%V\" variable", &v[i].name);
|
|
|
1940
|
|
|
1941 return NGX_ERROR;
|
|
|
1942
|
|
|
1943 next:
|
|
|
1944 continue;
|
|
|
1945 }
|
|
|
1946
|
|
|
1947
|
|
160
|
1948 for (n = 0; n < cmcf->variables_keys->keys.nelts; n++) {
|
|
|
1949 av = key[n].value;
|
|
|
1950
|
|
|
1951 if (av->flags & NGX_HTTP_VAR_NOHASH) {
|
|
|
1952 key[n].key.data = NULL;
|
|
132
|
1953 }
|
|
|
1954 }
|
|
|
1955
|
|
|
1956
|
|
160
|
1957 hash.hash = &cmcf->variables_hash;
|
|
|
1958 hash.key = ngx_hash_key;
|
|
|
1959 hash.max_size = cmcf->variables_hash_max_size;
|
|
|
1960 hash.bucket_size = cmcf->variables_hash_bucket_size;
|
|
|
1961 hash.name = "variables_hash";
|
|
|
1962 hash.pool = cf->pool;
|
|
|
1963 hash.temp_pool = NULL;
|
|
58
|
1964
|
|
160
|
1965 if (ngx_hash_init(&hash, cmcf->variables_keys->keys.elts,
|
|
|
1966 cmcf->variables_keys->keys.nelts)
|
|
130
|
1967 != NGX_OK)
|
|
58
|
1968 {
|
|
|
1969 return NGX_ERROR;
|
|
|
1970 }
|
|
|
1971
|
|
160
|
1972 cmcf->variables_keys = NULL;
|
|
58
|
1973
|
|
|
1974 return NGX_OK;
|
|
|
1975 }
|
