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499
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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573
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13 static ngx_int_t ngx_http_variable_request(ngx_http_request_t *r,
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14 ngx_http_variable_value_t *v, uintptr_t data);
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15 static ngx_int_t ngx_http_variable_header(ngx_http_request_t *r,
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16 ngx_http_variable_value_t *v, uintptr_t data);
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17 static ngx_int_t ngx_http_variable_headers(ngx_http_request_t *r,
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18 ngx_http_variable_value_t *v, uintptr_t data);
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577
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19
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20 static ngx_int_t ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
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573
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21 ngx_http_variable_value_t *v, uintptr_t data);
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577
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22 static ngx_int_t ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
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23 ngx_http_variable_value_t *v, uintptr_t data);
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24 static ngx_int_t ngx_http_variable_unknown_header(ngx_http_variable_value_t *v,
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25 ngx_str_t *var, ngx_list_part_t *part, size_t prefix);
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26
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573
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27 static ngx_int_t ngx_http_variable_host(ngx_http_request_t *r,
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28 ngx_http_variable_value_t *v, uintptr_t data);
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29 static ngx_int_t ngx_http_variable_remote_addr(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_port(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_server_addr(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_port(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_document_root(ngx_http_request_t *r,
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38 ngx_http_variable_value_t *v, uintptr_t data);
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39 static ngx_int_t ngx_http_variable_request_filename(ngx_http_request_t *r,
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40 ngx_http_variable_value_t *v, uintptr_t data);
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41 static ngx_int_t ngx_http_variable_request_method(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_user(ngx_http_request_t *r,
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44 ngx_http_variable_value_t *v, uintptr_t data);
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499
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45
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46
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509
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47 /*
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48 * TODO:
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49 * Apache CGI: AUTH_TYPE, PATH_INFO (null), PATH_TRANSLATED
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50 * REMOTE_HOST (null), REMOTE_IDENT (null),
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51 * SERVER_SOFTWARE
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52 *
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571
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53 * Apache SSI: DOCUMENT_NAME, LAST_MODIFIED, USER_NAME (file owner)
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509
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54 */
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499
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55
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509
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56 static ngx_http_variable_t ngx_http_core_variables[] = {
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57
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58 { ngx_string("http_host"), ngx_http_variable_header,
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533
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59 offsetof(ngx_http_request_t, headers_in.host), 0, 0 },
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499
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60
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509
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61 { ngx_string("http_user_agent"), ngx_http_variable_header,
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533
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62 offsetof(ngx_http_request_t, headers_in.user_agent), 0, 0 },
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509
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63
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64 { ngx_string("http_referer"), ngx_http_variable_header,
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533
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65 offsetof(ngx_http_request_t, headers_in.referer), 0, 0 },
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499
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66
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67 #if (NGX_HTTP_GZIP)
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509
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68 { ngx_string("http_via"), ngx_http_variable_header,
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533
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69 offsetof(ngx_http_request_t, headers_in.via), 0, 0 },
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499
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70 #endif
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71
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72 #if (NGX_HTTP_PROXY)
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509
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73 { ngx_string("http_x_forwarded_for"), ngx_http_variable_header,
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533
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74 offsetof(ngx_http_request_t, headers_in.x_forwarded_for), 0, 0 },
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499
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75 #endif
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76
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515
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77 { ngx_string("http_cookie"), ngx_http_variable_headers,
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533
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78 offsetof(ngx_http_request_t, headers_in.cookies), 0, 0 },
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515
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79
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509
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80 { ngx_string("content_length"), ngx_http_variable_header,
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533
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81 offsetof(ngx_http_request_t, headers_in.content_length), 0, 0 },
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509
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82
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83 { ngx_string("content_type"), ngx_http_variable_header,
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533
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84 offsetof(ngx_http_request_t, headers_in.content_type), 0, 0 },
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509
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85
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533
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86 { ngx_string("host"), ngx_http_variable_host, 0, 0, 0 },
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509
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87
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533
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88 { ngx_string("remote_addr"), ngx_http_variable_remote_addr, 0, 0, 0 },
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499
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89
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533
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90 { ngx_string("remote_port"), ngx_http_variable_remote_port, 0, 0, 0 },
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509
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91
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533
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92 { ngx_string("server_addr"), ngx_http_variable_server_addr, 0, 0, 0 },
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509
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93
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533
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94 { ngx_string("server_port"), ngx_http_variable_server_port, 0, 0, 0 },
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509
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95
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96 { ngx_string("server_protocol"), ngx_http_variable_request,
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533
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97 offsetof(ngx_http_request_t, http_protocol), 0, 0 },
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509
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98
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99 { ngx_string("request_uri"), ngx_http_variable_request,
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533
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100 offsetof(ngx_http_request_t, unparsed_uri), 0, 0 },
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499
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101
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573
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102 { ngx_string("uri"), ngx_http_variable_request,
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103 offsetof(ngx_http_request_t, uri),
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104 NGX_HTTP_VAR_NOCACHABLE, 0 },
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105
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509
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106 { ngx_string("document_uri"), ngx_http_variable_request,
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573
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107 offsetof(ngx_http_request_t, uri),
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108 NGX_HTTP_VAR_NOCACHABLE, 0 },
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509
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109
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569
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110 { ngx_string("request"), ngx_http_variable_request,
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111 offsetof(ngx_http_request_t, request_line), 0, 0 },
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112
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533
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113 { ngx_string("document_root"), ngx_http_variable_document_root, 0, 0, 0 },
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509
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114
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115 { ngx_string("query_string"), ngx_http_variable_request,
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116 offsetof(ngx_http_request_t, args),
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533
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117 NGX_HTTP_VAR_NOCACHABLE, 0 },
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499
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118
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589
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119 { ngx_string("args"), ngx_http_variable_request,
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120 offsetof(ngx_http_request_t, args),
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121 NGX_HTTP_VAR_NOCACHABLE, 0 },
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122
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509
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123 { ngx_string("request_filename"), ngx_http_variable_request_filename, 0,
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533
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124 NGX_HTTP_VAR_NOCACHABLE, 0 },
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509
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125
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126 { ngx_string("server_name"), ngx_http_variable_request,
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533
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127 offsetof(ngx_http_request_t, server_name), 0, 0 },
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509
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128
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561
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129 { ngx_string("request_method"), ngx_http_variable_request_method, 0, 0, 0 },
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509
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130
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539
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131 { ngx_string("remote_user"), ngx_http_variable_remote_user, 0, 0, 0 },
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509
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132
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533
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133 { ngx_null_string, NULL, 0, 0, 0 }
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499
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134 };
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135
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136
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577
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137 ngx_http_variable_value_t ngx_http_variable_null_value =
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138 ngx_http_variable("");
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139 ngx_http_variable_value_t ngx_http_variable_true_value =
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140 ngx_http_variable("1");
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141
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142
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499
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143 ngx_http_variable_t *
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509
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144 ngx_http_add_variable(ngx_conf_t *cf, ngx_str_t *name, ngx_uint_t flags)
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145 {
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146 ngx_uint_t i;
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147 ngx_http_variable_t *v;
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148 ngx_http_core_main_conf_t *cmcf;
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149
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150 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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151
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152 v = cmcf->all_variables.elts;
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153 for (i = 0; i < cmcf->all_variables.nelts; i++) {
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154 if (name->len != v[i].name.len
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155 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
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156 {
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157 continue;
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158 }
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159
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160 if (!(v[i].flags & NGX_HTTP_VAR_CHANGABLE)) {
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161 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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162 "the duplicate \"%V\" variable", name);
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163 return NULL;
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164 }
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165
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166 return &v[i];
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167 }
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168
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169 v = ngx_array_push(&cmcf->all_variables);
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170 if (v == NULL) {
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171 return NULL;
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172 }
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173
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174 v->name.len = name->len;
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175 v->name.data = ngx_palloc(cf->pool, name->len);
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176 if (v->name.data == NULL) {
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177 return NULL;
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178 }
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179
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180 for (i = 0; i < name->len; i++) {
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181 v->name.data[i] = ngx_tolower(name->data[i]);
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182 }
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183
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184 v->handler = NULL;
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185 v->data = 0;
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186 v->flags = flags;
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533
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187 v->index = 0;
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509
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188
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189 return v;
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190 }
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191
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192
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193 ngx_int_t
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194 ngx_http_get_variable_index(ngx_conf_t *cf, ngx_str_t *name)
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499
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195 {
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501
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196 ngx_uint_t i;
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197 ngx_http_variable_t *v;
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499
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198 ngx_http_core_main_conf_t *cmcf;
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199
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200 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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201
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501
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202 v = cmcf->variables.elts;
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203
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204 if (v == NULL) {
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499
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205 if (ngx_array_init(&cmcf->variables, cf->pool, 4,
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206 sizeof(ngx_http_variable_t)) == NGX_ERROR)
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207 {
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509
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208 return NGX_ERROR;
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499
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209 }
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501
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210
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211 } else {
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212 for (i = 0; i < cmcf->variables.nelts; i++) {
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213 if (name->len != v[i].name.len
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214 || ngx_strncasecmp(name->data, v[i].name.data, name->len) != 0)
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215 {
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216 continue;
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217 }
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218
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509
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219 return i;
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501
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220 }
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499
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221 }
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222
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501
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223 v = ngx_array_push(&cmcf->variables);
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224 if (v == NULL) {
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509
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225 return NGX_ERROR;
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499
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226 }
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227
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501
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228 v->name.len = name->len;
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229 v->name.data = ngx_palloc(cf->pool, name->len);
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230 if (v->name.data == NULL) {
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509
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231 return NGX_ERROR;
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501
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232 }
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499
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233
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501
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234 for (i = 0; i < name->len; i++) {
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509
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235 v->name.data[i] = ngx_tolower(name->data[i]);
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501
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236 }
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237
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238 v->handler = NULL;
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239 v->data = 0;
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509
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240 v->flags = 0;
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533
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241 v->index = cmcf->variables.nelts - 1;
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501
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242
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509
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243 return cmcf->variables.nelts - 1;
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499
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244 }
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245
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246
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247 ngx_http_variable_value_t *
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248 ngx_http_get_indexed_variable(ngx_http_request_t *r, ngx_uint_t index)
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249 {
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501
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250 ngx_http_variable_t *v;
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499
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251 ngx_http_core_main_conf_t *cmcf;
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252
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253 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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254
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553
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255 if (cmcf->variables.nelts <= index) {
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499
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256 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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257 "unknown variable index: %d", index);
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258 return NULL;
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259 }
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260
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573
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261 if (r->variables[index].not_found || r->variables[index].valid) {
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262 return &r->variables[index];
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501
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263 }
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499
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264
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501
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265 v = cmcf->variables.elts;
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499
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266
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573
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267 if (v[index].handler(r, &r->variables[index], v[index].data) == NGX_OK) {
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499
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268
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573
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269 if (v[index].flags & NGX_HTTP_VAR_NOCACHABLE) {
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270 r->variables[index].no_cachable = 1;
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499
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271 }
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573
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272
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273 return &r->variables[index];
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499
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274 }
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275
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573
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276 return NULL;
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277 }
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278
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279
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280 ngx_http_variable_value_t *
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281 ngx_http_get_flushed_variable(ngx_http_request_t *r, ngx_uint_t index)
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282 {
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283 ngx_http_variable_value_t *v;
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284
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285 v = &r->variables[index];
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286
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287 if (v->valid) {
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288 if (!v->no_cachable) {
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289 return v;
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290 }
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291
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292 v->valid = 0;
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293 v->not_found = 0;
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509
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294 }
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501
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295
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573
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296 return ngx_http_get_indexed_variable(r, index);
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499
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297 }
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298
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299
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300 ngx_http_variable_value_t *
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301 ngx_http_get_variable(ngx_http_request_t *r, ngx_str_t *name)
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302 {
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303 ngx_uint_t i, key;
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501
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304 ngx_http_variable_t *v;
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573
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305 ngx_http_variable_value_t *vv;
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499
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306 ngx_http_core_main_conf_t *cmcf;
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307
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308 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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309
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509
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310 key = 0;
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311 for (i = 0; i < name->len; i++) {
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312 key += name->data[i];
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499
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313 }
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314
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509
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315 key %= cmcf->variables_hash.hash_size;
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316 v = (ngx_http_variable_t *) cmcf->variables_hash.buckets;
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499
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317
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509
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318 if (v[key].name.len == name->len
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319 && ngx_strncmp(v[key].name.data, name->data, name->len) == 0)
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320 {
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519
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321 if (v[key].flags & NGX_HTTP_VAR_INDEXED) {
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533
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322 return ngx_http_get_indexed_variable(r, v[key].index);
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519
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323
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324 } else {
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499
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325
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573
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326 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
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501
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327
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573
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328 if (vv && v[key].handler(r, vv, v[key].data) == NGX_OK) {
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329 return vv;
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330 }
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509
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331
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573
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332 return NULL;
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333 }
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509
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334 }
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335
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336 vv = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t));
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337 if (vv == NULL) {
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338 return NULL;
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339 }
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340
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573
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341 if (ngx_strncmp(name->data, "http_", 5) == 0) {
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499
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342
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577
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343 if (ngx_http_variable_unknown_header_in(r, vv, (uintptr_t) name)
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344 == NGX_OK)
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345 {
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346 return vv;
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347 }
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348
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349 return NULL;
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350 }
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351
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352 if (ngx_strncmp(name->data, "sent_http_", 10) == 0) {
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353
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|
|
354 if (ngx_http_variable_unknown_header_out(r, vv, (uintptr_t) name)
|
|
|
355 == NGX_OK)
|
|
573
|
356 {
|
|
|
357 return vv;
|
|
|
358 }
|
|
499
|
359
|
|
|
360 return NULL;
|
|
|
361 }
|
|
|
362
|
|
573
|
363 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
364 "unknown \"%V\" variable", name);
|
|
|
365
|
|
|
366 vv->not_found = 1;
|
|
499
|
367
|
|
501
|
368 return vv;
|
|
499
|
369 }
|
|
|
370
|
|
|
371
|
|
573
|
372 static ngx_int_t
|
|
|
373 ngx_http_variable_request(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
374 uintptr_t data)
|
|
|
375 {
|
|
|
376 ngx_str_t *s;
|
|
|
377
|
|
|
378 s = (ngx_str_t *) ((char *) r + data);
|
|
|
379
|
|
|
380 if (s->data) {
|
|
|
381 v->len = s->len;
|
|
|
382 v->valid = 1;
|
|
|
383 v->no_cachable = 0;
|
|
|
384 v->not_found = 0;
|
|
|
385 v->data = s->data;
|
|
|
386
|
|
|
387 } else {
|
|
|
388 v->not_found = 1;
|
|
|
389 }
|
|
|
390
|
|
|
391 return NGX_OK;
|
|
|
392 }
|
|
|
393
|
|
|
394
|
|
|
395 static ngx_int_t
|
|
|
396 ngx_http_variable_header(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
397 uintptr_t data)
|
|
515
|
398 {
|
|
573
|
399 ngx_table_elt_t *h;
|
|
|
400
|
|
|
401 h = *(ngx_table_elt_t **) ((char *) r + data);
|
|
|
402
|
|
|
403 if (h) {
|
|
|
404 v->len = h->value.len;
|
|
|
405 v->valid = 1;
|
|
|
406 v->no_cachable = 0;
|
|
|
407 v->not_found = 0;
|
|
|
408 v->data = h->value.data;
|
|
|
409
|
|
|
410 } else {
|
|
|
411 v->not_found = 1;
|
|
|
412 }
|
|
|
413
|
|
|
414 return NGX_OK;
|
|
|
415 }
|
|
|
416
|
|
|
417
|
|
|
418 static ngx_int_t
|
|
|
419 ngx_http_variable_headers(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
420 uintptr_t data)
|
|
|
421 {
|
|
|
422 size_t len;
|
|
|
423 u_char *p;
|
|
|
424 ngx_uint_t i;
|
|
|
425 ngx_array_t *a;
|
|
|
426 ngx_table_elt_t **h;
|
|
515
|
427
|
|
|
428 a = (ngx_array_t *) ((char *) r + data);
|
|
|
429
|
|
|
430 if (a->nelts == 0) {
|
|
573
|
431 v->not_found = 1;
|
|
|
432 return NGX_OK;
|
|
515
|
433 }
|
|
|
434
|
|
573
|
435 v->valid = 1;
|
|
|
436 v->no_cachable = 0;
|
|
|
437 v->not_found = 0;
|
|
515
|
438
|
|
|
439 h = a->elts;
|
|
|
440
|
|
|
441 if (a->nelts == 1) {
|
|
573
|
442 v->len = (*h)->value.len;
|
|
|
443 v->data = (*h)->value.data;
|
|
515
|
444
|
|
573
|
445 return NGX_OK;
|
|
515
|
446 }
|
|
|
447
|
|
573
|
448 len = (size_t) - (ssize_t) (sizeof("; ") - 1);
|
|
|
449
|
|
|
450 for (i = 0; i < a->nelts; i++) {
|
|
|
451 len += h[i]->value.len + sizeof("; ") - 1;
|
|
515
|
452 }
|
|
|
453
|
|
573
|
454 p = ngx_palloc(r->pool, len);
|
|
|
455 if (p == NULL) {
|
|
|
456 return NGX_ERROR;
|
|
|
457 }
|
|
|
458
|
|
|
459 v->len = len;
|
|
|
460 v->data = p;
|
|
515
|
461
|
|
|
462 for (i = 0; /* void */ ; i++) {
|
|
573
|
463 p = ngx_copy(p, h[i]->value.data, h[i]->value.len);
|
|
515
|
464
|
|
|
465 if (i == a->nelts - 1) {
|
|
|
466 break;
|
|
|
467 }
|
|
|
468
|
|
|
469 *p++ = ';'; *p++ = ' ';
|
|
|
470 }
|
|
|
471
|
|
573
|
472 return NGX_OK;
|
|
515
|
473 }
|
|
|
474
|
|
|
475
|
|
573
|
476 static ngx_int_t
|
|
577
|
477 ngx_http_variable_unknown_header_in(ngx_http_request_t *r,
|
|
|
478 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
479 {
|
|
|
480 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
481 &r->headers_in.headers.part,
|
|
|
482 sizeof("http_") - 1);
|
|
|
483 }
|
|
|
484
|
|
|
485
|
|
|
486 static ngx_int_t
|
|
|
487 ngx_http_variable_unknown_header_out(ngx_http_request_t *r,
|
|
573
|
488 ngx_http_variable_value_t *v, uintptr_t data)
|
|
499
|
489 {
|
|
577
|
490 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
491 &r->headers_out.headers.part,
|
|
|
492 sizeof("sent_http_") - 1);
|
|
|
493 }
|
|
501
|
494
|
|
577
|
495
|
|
|
496 static ngx_int_t
|
|
|
497 ngx_http_variable_unknown_header(ngx_http_variable_value_t *v, ngx_str_t *var,
|
|
|
498 ngx_list_part_t *part, size_t prefix)
|
|
|
499 {
|
|
573
|
500 u_char ch;
|
|
|
501 ngx_uint_t i, n;
|
|
|
502 ngx_table_elt_t *header;
|
|
499
|
503
|
|
|
504 header = part->elts;
|
|
|
505
|
|
|
506 for (i = 0; /* void */ ; i++) {
|
|
|
507
|
|
|
508 if (i >= part->nelts) {
|
|
|
509 if (part->next == NULL) {
|
|
|
510 break;
|
|
|
511 }
|
|
|
512
|
|
|
513 part = part->next;
|
|
|
514 header = part->elts;
|
|
|
515 i = 0;
|
|
|
516 }
|
|
|
517
|
|
577
|
518 for (n = 0; n + prefix < var->len && n < header[i].key.len; n++) {
|
|
499
|
519 ch = header[i].key.data[n];
|
|
|
520
|
|
509
|
521 if (ch >= 'A' && ch <= 'Z') {
|
|
|
522 ch |= 0x20;
|
|
499
|
523
|
|
|
524 } else if (ch == '-') {
|
|
|
525 ch = '_';
|
|
|
526 }
|
|
|
527
|
|
577
|
528 if (var->data[n + prefix] != ch) {
|
|
499
|
529 break;
|
|
|
530 }
|
|
|
531 }
|
|
|
532
|
|
577
|
533 if (n + prefix == var->len) {
|
|
573
|
534 v->len = header[i].value.len;
|
|
|
535 v->valid = 1;
|
|
|
536 v->no_cachable = 0;
|
|
|
537 v->not_found = 0;
|
|
|
538 v->data = header[i].value.data;
|
|
499
|
539
|
|
573
|
540 return NGX_OK;
|
|
499
|
541 }
|
|
|
542 }
|
|
|
543
|
|
573
|
544 v->not_found = 1;
|
|
|
545
|
|
|
546 return NGX_OK;
|
|
509
|
547 }
|
|
|
548
|
|
|
549
|
|
573
|
550 static ngx_int_t
|
|
|
551 ngx_http_variable_host(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
|
552 uintptr_t data)
|
|
509
|
553 {
|
|
573
|
554 if (r->headers_in.host) {
|
|
|
555 v->len = r->headers_in.host_name_len;
|
|
|
556 v->data = r->headers_in.host->value.data;
|
|
509
|
557
|
|
573
|
558 } else {
|
|
|
559 v->len = r->server_name.len;
|
|
|
560 v->data = r->server_name.data;
|
|
509
|
561 }
|
|
|
562
|
|
573
|
563 v->valid = 1;
|
|
|
564 v->no_cachable = 0;
|
|
|
565 v->not_found = 0;
|
|
509
|
566
|
|
573
|
567 return NGX_OK;
|
|
499
|
568 }
|
|
|
569
|
|
|
570
|
|
573
|
571 static ngx_int_t
|
|
|
572 ngx_http_variable_remote_addr(ngx_http_request_t *r,
|
|
|
573 ngx_http_variable_value_t *v, uintptr_t data)
|
|
499
|
574 {
|
|
573
|
575 v->len = r->connection->addr_text.len;
|
|
|
576 v->valid = 1;
|
|
|
577 v->no_cachable = 0;
|
|
|
578 v->not_found = 0;
|
|
|
579 v->data = r->connection->addr_text.data;
|
|
499
|
580
|
|
573
|
581 return NGX_OK;
|
|
499
|
582 }
|
|
|
583
|
|
|
584
|
|
573
|
585 static ngx_int_t
|
|
|
586 ngx_http_variable_remote_port(ngx_http_request_t *r,
|
|
|
587 ngx_http_variable_value_t *v, uintptr_t data)
|
|
499
|
588 {
|
|
573
|
589 ngx_uint_t port;
|
|
|
590 struct sockaddr_in *sin;
|
|
509
|
591
|
|
573
|
592 v->len = 0;
|
|
|
593 v->valid = 1;
|
|
|
594 v->no_cachable = 0;
|
|
|
595 v->not_found = 0;
|
|
509
|
596
|
|
573
|
597 v->data = ngx_palloc(r->pool, sizeof("65535") - 1);
|
|
|
598 if (v->data == NULL) {
|
|
|
599 return NGX_ERROR;
|
|
509
|
600 }
|
|
|
601
|
|
|
602 /* AF_INET only */
|
|
577
|
603
|
|
509
|
604 if (r->connection->sockaddr->sa_family == AF_INET) {
|
|
|
605 sin = (struct sockaddr_in *) r->connection->sockaddr;
|
|
577
|
606
|
|
509
|
607 port = ntohs(sin->sin_port);
|
|
577
|
608
|
|
509
|
609 if (port > 0 && port < 65536) {
|
|
573
|
610 v->len = ngx_sprintf(v->data, "%ui", port) - v->data;
|
|
509
|
611 }
|
|
|
612 }
|
|
|
613
|
|
573
|
614 return NGX_OK;
|
|
509
|
615 }
|
|
|
616
|
|
|
617
|
|
573
|
618 static ngx_int_t
|
|
|
619 ngx_http_variable_server_addr(ngx_http_request_t *r,
|
|
|
620 ngx_http_variable_value_t *v, uintptr_t data)
|
|
509
|
621 {
|
|
573
|
622 socklen_t len;
|
|
|
623 ngx_connection_t *c;
|
|
|
624 struct sockaddr_in sin;
|
|
499
|
625
|
|
573
|
626 v->data = ngx_palloc(r->pool, INET_ADDRSTRLEN);
|
|
|
627 if (v->data == NULL) {
|
|
|
628 return NGX_ERROR;
|
|
509
|
629 }
|
|
|
630
|
|
|
631 c = r->connection;
|
|
|
632
|
|
|
633 if (r->in_addr == 0) {
|
|
|
634 len = sizeof(struct sockaddr_in);
|
|
|
635 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
|
|
|
636 ngx_log_error(NGX_LOG_CRIT, c->log,
|
|
|
637 ngx_socket_errno, "getsockname() failed");
|
|
573
|
638 return NGX_ERROR;
|
|
509
|
639 }
|
|
|
640
|
|
|
641 r->in_addr = sin.sin_addr.s_addr;
|
|
|
642 }
|
|
|
643
|
|
573
|
644 v->len = ngx_inet_ntop(c->listening->family, &r->in_addr,
|
|
|
645 v->data, INET_ADDRSTRLEN);
|
|
|
646 v->valid = 1;
|
|
|
647 v->no_cachable = 0;
|
|
|
648 v->not_found = 0;
|
|
499
|
649
|
|
573
|
650 return NGX_OK;
|
|
499
|
651 }
|
|
|
652
|
|
|
653
|
|
573
|
654 static ngx_int_t
|
|
|
655 ngx_http_variable_server_port(ngx_http_request_t *r,
|
|
|
656 ngx_http_variable_value_t *v, uintptr_t data)
|
|
509
|
657 {
|
|
573
|
658 v->len = r->port_text->len - 1;
|
|
|
659 v->valid = 1;
|
|
|
660 v->no_cachable = 0;
|
|
|
661 v->not_found = 0;
|
|
|
662 v->data = r->port_text->data + 1;
|
|
509
|
663
|
|
573
|
664 return NGX_OK;
|
|
509
|
665 }
|
|
|
666
|
|
|
667
|
|
573
|
668 static ngx_int_t
|
|
|
669 ngx_http_variable_document_root(ngx_http_request_t *r,
|
|
|
670 ngx_http_variable_value_t *v, uintptr_t data)
|
|
499
|
671 {
|
|
573
|
672 ngx_http_core_loc_conf_t *clcf;
|
|
509
|
673
|
|
|
674 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
675
|
|
573
|
676 v->len = clcf->root.len;
|
|
|
677 v->valid = 1;
|
|
|
678 v->no_cachable = 0;
|
|
|
679 v->not_found = 0;
|
|
|
680 v->data = clcf->root.data;
|
|
509
|
681
|
|
573
|
682 return NGX_OK;
|
|
509
|
683 }
|
|
|
684
|
|
|
685
|
|
573
|
686 static ngx_int_t
|
|
|
687 ngx_http_variable_request_filename(ngx_http_request_t *r,
|
|
|
688 ngx_http_variable_value_t *v, uintptr_t data)
|
|
509
|
689 {
|
|
573
|
690 ngx_str_t path;
|
|
499
|
691
|
|
573
|
692 if (ngx_http_map_uri_to_path(r, &path, 0) == NULL) {
|
|
|
693 return NGX_ERROR;
|
|
557
|
694 }
|
|
509
|
695
|
|
557
|
696 /* ngx_http_map_uri_to_path() allocates memory for terminating '\0' */
|
|
509
|
697
|
|
573
|
698 v->len = path.len - 1;
|
|
|
699 v->valid = 1;
|
|
|
700 v->no_cachable = 0;
|
|
|
701 v->not_found = 0;
|
|
|
702 v->data = path.data;
|
|
499
|
703
|
|
573
|
704 return NGX_OK;
|
|
499
|
705 }
|
|
|
706
|
|
|
707
|
|
573
|
708 static ngx_int_t
|
|
|
709 ngx_http_variable_request_method(ngx_http_request_t *r,
|
|
|
710 ngx_http_variable_value_t *v, uintptr_t data)
|
|
561
|
711 {
|
|
573
|
712 if (r->method_name.data) {
|
|
|
713 if (r->upstream && r->upstream->method.len) {
|
|
|
714 v->len = r->upstream->method.len;
|
|
|
715 v->data = r->upstream->method.data;
|
|
561
|
716
|
|
573
|
717 } else {
|
|
|
718 v->len = r->method_name.len;
|
|
|
719 v->data = r->method_name.data;
|
|
|
720 }
|
|
|
721
|
|
|
722 v->valid = 1;
|
|
|
723 v->no_cachable = 0;
|
|
|
724 v->not_found = 0;
|
|
|
725
|
|
|
726 } else {
|
|
|
727 v->not_found = 1;
|
|
561
|
728 }
|
|
|
729
|
|
573
|
730 return NGX_OK;
|
|
561
|
731 }
|
|
|
732
|
|
|
733
|
|
573
|
734 static ngx_int_t
|
|
|
735 ngx_http_variable_remote_user(ngx_http_request_t *r,
|
|
|
736 ngx_http_variable_value_t *v, uintptr_t data)
|
|
539
|
737 {
|
|
573
|
738 ngx_int_t rc;
|
|
539
|
739
|
|
|
740 rc = ngx_http_auth_basic_user(r);
|
|
|
741
|
|
|
742 if (rc == NGX_DECLINED) {
|
|
573
|
743 v->not_found = 1;
|
|
|
744 return NGX_OK;
|
|
539
|
745 }
|
|
|
746
|
|
|
747 if (rc == NGX_ERROR) {
|
|
573
|
748 return NGX_ERROR;
|
|
539
|
749 }
|
|
|
750
|
|
573
|
751 v->len = r->headers_in.user.len;
|
|
|
752 v->valid = 1;
|
|
|
753 v->no_cachable = 0;
|
|
|
754 v->not_found = 0;
|
|
|
755 v->data = r->headers_in.user.data;
|
|
571
|
756
|
|
573
|
757 return NGX_OK;
|
|
571
|
758 }
|
|
|
759
|
|
|
760
|
|
499
|
761 ngx_int_t
|
|
509
|
762 ngx_http_variables_add_core_vars(ngx_conf_t *cf)
|
|
499
|
763 {
|
|
509
|
764 ngx_http_variable_t *v, *cv;
|
|
501
|
765 ngx_http_core_main_conf_t *cmcf;
|
|
499
|
766
|
|
509
|
767 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
768
|
|
|
769 if (ngx_array_init(&cmcf->all_variables, cf->pool, 32,
|
|
569
|
770 sizeof(ngx_http_variable_t))
|
|
|
771 == NGX_ERROR)
|
|
509
|
772 {
|
|
499
|
773 return NGX_ERROR;
|
|
|
774 }
|
|
|
775
|
|
501
|
776 for (cv = ngx_http_core_variables; cv->name.len; cv++) {
|
|
509
|
777 v = ngx_array_push(&cmcf->all_variables);
|
|
|
778 if (v == NULL) {
|
|
499
|
779 return NGX_ERROR;
|
|
|
780 }
|
|
|
781
|
|
509
|
782 *v = *cv;
|
|
499
|
783 }
|
|
|
784
|
|
|
785 return NGX_OK;
|
|
|
786 }
|
|
509
|
787
|
|
|
788
|
|
|
789 ngx_int_t
|
|
|
790 ngx_http_variables_init_vars(ngx_conf_t *cf)
|
|
|
791 {
|
|
|
792 ngx_uint_t i, n;
|
|
|
793 ngx_http_variable_t *v, *av;
|
|
|
794 ngx_http_core_main_conf_t *cmcf;
|
|
|
795
|
|
|
796 /* set the handlers for the indexed http variables */
|
|
|
797
|
|
|
798 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
|
|
|
799
|
|
|
800 v = cmcf->variables.elts;
|
|
|
801 av = cmcf->all_variables.elts;
|
|
|
802
|
|
|
803 for (i = 0; i < cmcf->variables.nelts; i++) {
|
|
|
804
|
|
|
805 for (n = 0; n < cmcf->all_variables.nelts; n++) {
|
|
|
806
|
|
|
807 if (v[i].name.len == av[n].name.len
|
|
|
808 && ngx_strncmp(v[i].name.data, av[n].name.data, v[i].name.len)
|
|
|
809 == 0)
|
|
|
810 {
|
|
|
811 v[i].handler = av[n].handler;
|
|
|
812 v[i].data = av[n].data;
|
|
527
|
813
|
|
|
814 av[n].flags |= NGX_HTTP_VAR_INDEXED;
|
|
|
815 v[i].flags = av[n].flags;
|
|
509
|
816
|
|
533
|
817 av[n].index = i;
|
|
|
818
|
|
509
|
819 goto next;
|
|
|
820 }
|
|
|
821 }
|
|
|
822
|
|
|
823 if (ngx_strncmp(v[i].name.data, "http_", 5) == 0) {
|
|
577
|
824 v[i].handler = ngx_http_variable_unknown_header_in;
|
|
|
825 v[i].data = (uintptr_t) &v[i].name;
|
|
|
826
|
|
|
827 continue;
|
|
|
828 }
|
|
|
829
|
|
|
830 if (ngx_strncmp(v[i].name.data, "sent_http_", 10) == 0) {
|
|
|
831 v[i].handler = ngx_http_variable_unknown_header_out;
|
|
509
|
832 v[i].data = (uintptr_t) &v[i].name;
|
|
|
833
|
|
|
834 continue;
|
|
|
835 }
|
|
|
836
|
|
|
837 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
|
838 "unknown \"%V\" variable", &v[i].name);
|
|
|
839
|
|
|
840 return NGX_ERROR;
|
|
|
841
|
|
|
842 next:
|
|
|
843 continue;
|
|
|
844 }
|
|
|
845
|
|
|
846 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
847 "http variables: %ui", cmcf->variables.nelts);
|
|
|
848
|
|
|
849
|
|
583
|
850 for (n = 0; n < cmcf->all_variables.nelts; n++) {
|
|
|
851 if (av[n].flags & NGX_HTTP_VAR_NOHASH) {
|
|
|
852 av[n].name.data = NULL;
|
|
|
853 }
|
|
|
854 }
|
|
|
855
|
|
|
856
|
|
509
|
857 /* init the all http variables hash */
|
|
|
858
|
|
|
859 cmcf->variables_hash.max_size = 500;
|
|
|
860 cmcf->variables_hash.bucket_limit = 1;
|
|
|
861 cmcf->variables_hash.bucket_size = sizeof(ngx_http_variable_t);
|
|
|
862 cmcf->variables_hash.name = "http variables";
|
|
|
863
|
|
589
|
864 if (ngx_hash0_init(&cmcf->variables_hash, cf->pool,
|
|
581
|
865 cmcf->all_variables.elts, cmcf->all_variables.nelts)
|
|
|
866 != NGX_OK)
|
|
509
|
867 {
|
|
|
868 return NGX_ERROR;
|
|
|
869 }
|
|
|
870
|
|
|
871 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
872 "http variables hash size: %ui for %ui values, "
|
|
|
873 "max buckets per entry: %ui",
|
|
|
874 cmcf->variables_hash.hash_size, cmcf->all_variables.nelts,
|
|
|
875 cmcf->variables_hash.min_buckets);
|
|
|
876
|
|
|
877 return NGX_OK;
|
|
|
878 }
|
