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0
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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 #ifndef _NGX_HTTP_REQUEST_H_INCLUDED_
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8 #define _NGX_HTTP_REQUEST_H_INCLUDED_
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9
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10
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200
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11 #define NGX_HTTP_MAX_URI_CHANGES 10
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206
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12 #define NGX_HTTP_MAX_SUBREQUESTS 50
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58
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13
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198
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14 /* must be 2^n */
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15 #define NGX_HTTP_LC_HEADER_LEN 32
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16
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58
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17
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0
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18 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096
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19 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096
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20
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21
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22 #define NGX_HTTP_VERSION_9 9
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23 #define NGX_HTTP_VERSION_10 1000
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24 #define NGX_HTTP_VERSION_11 1001
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25
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182
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26 #define NGX_HTTP_UNKNOWN 0x0001
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27 #define NGX_HTTP_GET 0x0002
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28 #define NGX_HTTP_HEAD 0x0004
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29 #define NGX_HTTP_POST 0x0008
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30 #define NGX_HTTP_PUT 0x0010
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31 #define NGX_HTTP_DELETE 0x0020
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186
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32 #define NGX_HTTP_MKCOL 0x0040
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0
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33
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34 #define NGX_HTTP_CONNECTION_CLOSE 1
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35 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
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36
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37
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38 #define NGX_NONE 1
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39
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40
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41 #define NGX_HTTP_PARSE_HEADER_DONE 1
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42
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43 #define NGX_HTTP_CLIENT_ERROR 10
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44 #define NGX_HTTP_PARSE_INVALID_METHOD 10
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45 #define NGX_HTTP_PARSE_INVALID_REQUEST 11
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54
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46 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12
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0
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47
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54
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48 #define NGX_HTTP_PARSE_INVALID_HEADER 13
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0
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49
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122
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50 #define NGX_HTTP_ZERO_IN_URI 1
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51
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0
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52
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53 #define NGX_HTTP_OK 200
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182
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54 #define NGX_HTTP_CREATED 201
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60
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55 #define NGX_HTTP_NO_CONTENT 204
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0
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56 #define NGX_HTTP_PARTIAL_CONTENT 206
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57
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58 #define NGX_HTTP_SPECIAL_RESPONSE 300
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59 #define NGX_HTTP_MOVED_PERMANENTLY 301
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60 #define NGX_HTTP_MOVED_TEMPORARILY 302
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61 #define NGX_HTTP_NOT_MODIFIED 304
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62
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63 #define NGX_HTTP_BAD_REQUEST 400
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52
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64 #define NGX_HTTP_UNAUTHORIZED 401
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0
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65 #define NGX_HTTP_FORBIDDEN 403
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66 #define NGX_HTTP_NOT_FOUND 404
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67 #define NGX_HTTP_NOT_ALLOWED 405
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68 #define NGX_HTTP_REQUEST_TIME_OUT 408
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186
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69 #define NGX_HTTP_CONFLICT 409
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130
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70 #define NGX_HTTP_LENGTH_REQUIRED 411
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0
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71 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
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72 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
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186
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73 #define NGX_HTTP_UNSUPPORTED_MEDIA_TYPE 415
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0
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74 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
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75
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76
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77 /* Our own HTTP codes */
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78
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136
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79 /* The special code to close connection without any response */
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80 #define NGX_HTTP_CLOSE 444
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81
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196
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82 #define NGX_HTTP_OWN_CODES 495
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83
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84 #define NGX_HTTPS_CERT_ERROR 495
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85 #define NGX_HTTPS_NO_CERT 496
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0
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86
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87 /*
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88 * We use the special code for the plain HTTP requests that are sent to
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126
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89 * HTTPS port to distinguish it from 4XX in an error page redirection
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0
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90 */
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91 #define NGX_HTTP_TO_HTTPS 497
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92
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162
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93 /* 498 is the canceled code for the requests with invalid host name */
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0
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94
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95 /*
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96 * HTTP does not define the code for the case when a client closed
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97 * the connection while we are processing its request so we introduce
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98 * own code to log such situation when a client has closed the connection
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99 * before we even try to send the HTTP header to it
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100 */
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101 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
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102
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103
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104 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
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105 #define NGX_HTTP_NOT_IMPLEMENTED 501
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106 #define NGX_HTTP_BAD_GATEWAY 502
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107 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
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108 #define NGX_HTTP_GATEWAY_TIME_OUT 504
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186
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109 #define NGX_HTTP_INSUFFICIENT_STORAGE 507
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0
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110
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111
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146
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112 #define NGX_HTTP_LOWLEVEL_BUFFERED 0x000000f0
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113 #define NGX_HTTP_WRITE_BUFFERED 0x00000010
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114 #define NGX_HTTP_GZIP_BUFFERED 0x00000020
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115 #define NGX_HTTP_SSI_BUFFERED 0x00000100
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116 #define NGX_HTTP_COPY_BUFFERED 0x00000200
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117
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118
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0
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119 typedef enum {
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120 NGX_HTTP_INITING_REQUEST_STATE = 0,
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121 NGX_HTTP_READING_REQUEST_STATE,
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122 NGX_HTTP_PROCESS_REQUEST_STATE,
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123
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124 NGX_HTTP_CONNECT_UPSTREAM_STATE,
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125 NGX_HTTP_WRITING_UPSTREAM_STATE,
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126 NGX_HTTP_READING_UPSTREAM_STATE,
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127
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128 NGX_HTTP_WRITING_REQUEST_STATE,
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129 NGX_HTTP_LINGERING_CLOSE_STATE,
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130 NGX_HTTP_KEEPALIVE_STATE
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131 } ngx_http_state_e;
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132
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133
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134 typedef struct {
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50
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135 ngx_str_t name;
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136 ngx_uint_t offset;
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58
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137 ngx_http_header_handler_pt handler;
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0
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138 } ngx_http_header_t;
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139
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140
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141 typedef struct {
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58
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142 ngx_str_t name;
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143 ngx_uint_t offset;
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118
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144 } ngx_http_header_out_t;
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58
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145
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146
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147 typedef struct {
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50
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148 ngx_list_t headers;
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0
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149
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50
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150 ngx_table_elt_t *host;
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151 ngx_table_elt_t *connection;
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152 ngx_table_elt_t *if_modified_since;
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153 ngx_table_elt_t *user_agent;
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154 ngx_table_elt_t *referer;
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155 ngx_table_elt_t *content_length;
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156 ngx_table_elt_t *content_type;
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0
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157
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50
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158 ngx_table_elt_t *range;
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0
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159
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130
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160 ngx_table_elt_t *transfer_encoding;
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161
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0
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162 #if (NGX_HTTP_GZIP)
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50
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163 ngx_table_elt_t *accept_encoding;
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164 ngx_table_elt_t *via;
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0
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165 #endif
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166
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50
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167 ngx_table_elt_t *authorization;
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0
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168
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50
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169 ngx_table_elt_t *keep_alive;
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0
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170
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122
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171 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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50
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172 ngx_table_elt_t *x_forwarded_for;
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0
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173 #endif
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174
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122
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175 #if (NGX_HTTP_REALIP)
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176 ngx_table_elt_t *x_real_ip;
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177 #endif
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178
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38
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179 #if (NGX_HTTP_HEADERS)
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50
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180 ngx_table_elt_t *accept;
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181 ngx_table_elt_t *accept_language;
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38
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182 #endif
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183
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186
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184 #if (NGX_HTTP_DAV)
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185 ngx_table_elt_t *depth;
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186 ngx_table_elt_t *destination;
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230
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187 ngx_table_elt_t *date;
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186
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188 #endif
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189
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52
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190 ngx_str_t user;
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191 ngx_str_t passwd;
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192
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50
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193 ngx_array_t cookies;
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194
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195 size_t host_name_len;
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212
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196 off_t content_length_n;
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50
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197 time_t keep_alive_n;
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0
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198
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50
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199 unsigned connection_type:2;
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200 unsigned msie:1;
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201 unsigned msie4:1;
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202 unsigned opera:1;
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203 unsigned gecko:1;
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204 unsigned konqueror:1;
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0
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205 } ngx_http_headers_in_t;
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206
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207
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208 typedef struct {
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50
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209 off_t start;
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210 off_t end;
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211 ngx_str_t content_range;
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0
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212 } ngx_http_range_t;
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213
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214
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215 typedef struct {
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50
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216 ngx_list_t headers;
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0
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217
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50
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218 ngx_uint_t status;
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219 ngx_str_t status_line;
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0
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220
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50
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221 ngx_table_elt_t *server;
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222 ngx_table_elt_t *date;
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223 ngx_table_elt_t *content_length;
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224 ngx_table_elt_t *content_encoding;
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225 ngx_table_elt_t *location;
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226 ngx_table_elt_t *last_modified;
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227 ngx_table_elt_t *content_range;
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228 ngx_table_elt_t *accept_ranges;
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52
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229 ngx_table_elt_t *www_authenticate;
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50
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230 ngx_table_elt_t *expires;
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231 ngx_table_elt_t *etag;
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0
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232
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206
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233 ngx_str_t *override_charset;
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234
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235 size_t content_type_len;
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58
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236 ngx_str_t content_type;
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50
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237 ngx_str_t charset;
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206
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238
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50
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239 ngx_array_t ranges;
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58
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240 ngx_array_t cache_control;
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241
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50
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242 off_t content_length_n;
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243 time_t date_time;
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244 time_t last_modified_time;
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0
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245 } ngx_http_headers_out_t;
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246
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247
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28
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248 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
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249
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0
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250 typedef struct {
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28
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251 ngx_temp_file_t *temp_file;
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252 ngx_chain_t *bufs;
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253 ngx_buf_t *buf;
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212
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254 off_t rest;
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182
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255 ngx_chain_t *to_write;
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28
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256 ngx_http_client_body_handler_pt post_handler;
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0
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257 } ngx_http_request_body_t;
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258
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259
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260 typedef struct {
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50
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261 ngx_http_request_t *request;
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0
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262
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50
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263 ngx_buf_t **busy;
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264 ngx_int_t nbusy;
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0
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265
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50
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266 ngx_buf_t **free;
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267 ngx_int_t nfree;
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0
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268
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50
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269 ngx_uint_t pipeline; /* unsigned pipeline:1; */
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0
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270 } ngx_http_connection_t;
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271
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272
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142
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273 typedef struct {
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274 ngx_hash_t hash;
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275 ngx_hash_wildcard_t *dns_wildcards;
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276 } ngx_http_virtual_names_t;
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277
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278
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118
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279 typedef void (*ngx_http_cleanup_pt)(void *data);
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280
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281 typedef struct ngx_http_cleanup_s ngx_http_cleanup_t;
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282
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283 struct ngx_http_cleanup_s {
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142
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284 ngx_http_cleanup_pt handler;
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285 void *data;
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286 ngx_http_cleanup_t *next;
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118
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287 };
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288
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289
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58
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290 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t;
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291
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292 struct ngx_http_postponed_request_s {
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84
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293 ngx_http_request_t *request;
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294 ngx_chain_t *out;
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295 ngx_http_postponed_request_t *next;
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58
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296 };
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297
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298
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0
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299 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
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58
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300 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r);
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301
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0
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302
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303 struct ngx_http_request_s {
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50
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304 uint32_t signature; /* "HTTP" */
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0
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305
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50
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306 ngx_connection_t *connection;
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0
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307
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50
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308 void **ctx;
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309 void **main_conf;
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310 void **srv_conf;
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311 void **loc_conf;
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0
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312
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58
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313 ngx_http_event_handler_pt read_event_handler;
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314 ngx_http_event_handler_pt write_event_handler;
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315
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50
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316 ngx_http_cache_t *cache;
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0
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317
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50
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318 ngx_http_upstream_t *upstream;
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28
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319
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50
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320 ngx_pool_t *pool;
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321 ngx_buf_t *header_in;
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0
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322
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50
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323 ngx_http_headers_in_t headers_in;
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324 ngx_http_headers_out_t headers_out;
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0
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325
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50
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326 ngx_http_request_body_t *request_body;
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0
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327
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50
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328 time_t lingering_time;
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329 time_t start_time;
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0
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330
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50
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331 ngx_uint_t method;
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332 ngx_uint_t http_version;
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333 ngx_uint_t http_major;
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334 ngx_uint_t http_minor;
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126
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335
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50
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336 ngx_str_t request_line;
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337 ngx_str_t uri;
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338 ngx_str_t args;
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339 ngx_str_t exten;
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340 ngx_str_t unparsed_uri;
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0
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341
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50
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342 ngx_str_t method_name;
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343 ngx_str_t http_protocol;
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126
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344
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58
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345 ngx_chain_t *out;
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50
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346 ngx_http_request_t *main;
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58
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347 ngx_http_request_t *parent;
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348 ngx_http_postponed_request_t *postponed;
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0
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349
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50
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350 uint32_t in_addr;
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351 ngx_uint_t port;
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352 ngx_str_t *port_text; /* ":80" */
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353 ngx_str_t server_name;
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142
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354 ngx_http_virtual_names_t *virtual_names;
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0
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355
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50
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356 ngx_int_t phase_handler;
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357 ngx_http_handler_pt content_handler;
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92
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358 ngx_uint_t access_code;
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34
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359
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122
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360 ngx_http_variable_value_t *variables;
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50
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361
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144
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362 size_t root_length;
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363
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76
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364 size_t limit_rate;
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365
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0
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366 /* used to learn the Apache compatible response length without a header */
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50
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367 size_t header_size;
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0
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368
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212
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369 off_t request_length;
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24
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370
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50
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371 ngx_uint_t err_status;
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0
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372
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50
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373 ngx_http_connection_t *http_connection;
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0
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374
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58
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375 ngx_http_log_handler_pt log_handler;
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376
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118
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377 ngx_http_cleanup_t *cleanup;
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378
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50
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379 unsigned http_state:4;
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0
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380
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2
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381 /* URI with "/." and on Win32 with "//" */
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50
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382 unsigned complex_uri:1;
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34
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383
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2
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384 /* URI with "%" */
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50
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385 unsigned quoted_uri:1;
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34
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386
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387 /* URI with "+" */
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50
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388 unsigned plus_in_uri:1;
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34
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389
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38
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390 /* URI with "\0" or "%00" */
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50
|
391 unsigned zero_in_uri:1;
|
|
38
|
392
|
|
60
|
393 unsigned invalid_header:1;
|
|
|
394
|
|
58
|
395 unsigned valid_location:1;
|
|
54
|
396 unsigned valid_unparsed_uri:1;
|
|
50
|
397 unsigned uri_changed:1;
|
|
|
398 unsigned uri_changes:4;
|
|
34
|
399
|
|
182
|
400 unsigned request_body_in_single_buf:1;
|
|
|
401 unsigned request_body_in_file_only:1;
|
|
|
402 unsigned request_body_in_persistent_file:1;
|
|
|
403 unsigned request_body_delete_incomplete_file:1;
|
|
|
404 unsigned request_body_file_group_access:1;
|
|
186
|
405 unsigned request_body_file_log_level:3;
|
|
182
|
406
|
|
146
|
407 unsigned fast_subrequest:1;
|
|
|
408
|
|
50
|
409 unsigned header_timeout_set:1;
|
|
0
|
410
|
|
50
|
411 unsigned proxy:1;
|
|
|
412 unsigned bypass_cache:1;
|
|
|
413 unsigned no_cache:1;
|
|
0
|
414
|
|
122
|
415 #if (NGX_HTTP_REALIP)
|
|
|
416
|
|
|
417 /*
|
|
|
418 * instead of using the request context data in ngx_http_realip_module
|
|
|
419 * we use the single bit in the request structure
|
|
|
420 */
|
|
|
421 unsigned realip_set:1;
|
|
|
422
|
|
|
423 #endif
|
|
|
424
|
|
0
|
425 #if 0
|
|
50
|
426 unsigned cachable:1;
|
|
0
|
427 #endif
|
|
58
|
428
|
|
50
|
429 unsigned pipeline:1;
|
|
|
430 unsigned plain_http:1;
|
|
|
431 unsigned chunked:1;
|
|
|
432 unsigned header_only:1;
|
|
|
433 unsigned keepalive:1;
|
|
|
434 unsigned lingering_close:1;
|
|
86
|
435 unsigned discard_body:1;
|
|
58
|
436 unsigned internal:1;
|
|
228
|
437 unsigned error_page:1;
|
|
178
|
438 unsigned post_action:1;
|
|
|
439 unsigned request_complete:1;
|
|
216
|
440 unsigned request_output:1;
|
|
|
441 unsigned header_sent:1;
|
|
58
|
442 unsigned done:1;
|
|
72
|
443 unsigned utf8:1;
|
|
0
|
444
|
|
62
|
445 unsigned main_filter_need_in_memory:1;
|
|
50
|
446 unsigned filter_need_in_memory:1;
|
|
|
447 unsigned filter_need_temporary:1;
|
|
130
|
448 unsigned allow_ranges:1;
|
|
0
|
449
|
|
|
450 #if (NGX_STAT_STUB)
|
|
50
|
451 unsigned stat_reading:1;
|
|
|
452 unsigned stat_writing:1;
|
|
0
|
453 #endif
|
|
|
454
|
|
206
|
455 unsigned subrequests:8;
|
|
|
456
|
|
0
|
457 /* used to parse HTTP headers */
|
|
50
|
458 ngx_uint_t state;
|
|
|
459 u_char *uri_start;
|
|
|
460 u_char *uri_end;
|
|
|
461 u_char *uri_ext;
|
|
|
462 u_char *args_start;
|
|
|
463 u_char *request_start;
|
|
|
464 u_char *request_end;
|
|
|
465 u_char *method_end;
|
|
|
466 u_char *schema_start;
|
|
|
467 u_char *schema_end;
|
|
|
468 u_char *host_start;
|
|
|
469 u_char *host_end;
|
|
|
470 u_char *port_start;
|
|
|
471 u_char *port_end;
|
|
|
472 u_char *header_name_start;
|
|
|
473 u_char *header_name_end;
|
|
|
474 u_char *header_start;
|
|
|
475 u_char *header_end;
|
|
198
|
476
|
|
56
|
477 ngx_uint_t header_hash;
|
|
198
|
478 ngx_uint_t lowcase_index;
|
|
|
479 u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN];
|
|
0
|
480 };
|
|
|
481
|
|
|
482
|
|
118
|
483 extern ngx_http_header_t ngx_http_headers_in[];
|
|
|
484 extern ngx_http_header_out_t ngx_http_headers_out[];
|
|
0
|
485
|
|
|
486
|
|
|
487 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
|
