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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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58
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11 #define NGX_HTTP_MAX_REWRITE_CYCLES 10
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12
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13
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0
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14 #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096
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15 #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096
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16
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17
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18 #define NGX_HTTP_VERSION_9 9
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19 #define NGX_HTTP_VERSION_10 1000
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20 #define NGX_HTTP_VERSION_11 1001
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21
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22 #define NGX_HTTP_GET 1
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23 #define NGX_HTTP_HEAD 2
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24 #define NGX_HTTP_POST 3
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25
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26 #define NGX_HTTP_CONNECTION_CLOSE 1
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27 #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2
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28
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29
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30 #define NGX_NONE 1
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31
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32
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33 #define NGX_HTTP_PARSE_HEADER_DONE 1
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34
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35 #define NGX_HTTP_CLIENT_ERROR 10
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36 #define NGX_HTTP_PARSE_INVALID_METHOD 10
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37 #define NGX_HTTP_PARSE_INVALID_REQUEST 11
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54
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38 #define NGX_HTTP_PARSE_INVALID_09_METHOD 12
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0
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39
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54
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40 #define NGX_HTTP_PARSE_HEADER_ERROR 13
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41 #define NGX_HTTP_PARSE_INVALID_HEADER 13
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0
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42
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43
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44 #define NGX_HTTP_OK 200
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60
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45 #define NGX_HTTP_NO_CONTENT 204
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0
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46 #define NGX_HTTP_PARTIAL_CONTENT 206
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47
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48 #define NGX_HTTP_SPECIAL_RESPONSE 300
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49 #define NGX_HTTP_MOVED_PERMANENTLY 301
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50 #define NGX_HTTP_MOVED_TEMPORARILY 302
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51 #define NGX_HTTP_NOT_MODIFIED 304
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52
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53 #define NGX_HTTP_BAD_REQUEST 400
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52
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54 #define NGX_HTTP_UNAUTHORIZED 401
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0
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55 #define NGX_HTTP_FORBIDDEN 403
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56 #define NGX_HTTP_NOT_FOUND 404
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57 #define NGX_HTTP_NOT_ALLOWED 405
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58 #define NGX_HTTP_REQUEST_TIME_OUT 408
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59 #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413
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60 #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414
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61 #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416
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62
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63
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64 /* Our own HTTP codes */
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65
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66 #define NGX_HTTP_NGX_CODES NGX_HTTP_TO_HTTPS
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67
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68 /*
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69 * We use the special code for the plain HTTP requests that are sent to
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70 * HTTPS port to distinguish it from 4XX in an error page redirection
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71 */
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72 #define NGX_HTTP_TO_HTTPS 497
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73
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74 /*
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75 * We use the special code for the requests with invalid host name
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76 * to distinguish it from 4XX in an error page redirection
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77 */
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78 #define NGX_HTTP_INVALID_HOST 498
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79
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80 /*
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81 * HTTP does not define the code for the case when a client closed
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82 * the connection while we are processing its request so we introduce
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83 * own code to log such situation when a client has closed the connection
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84 * before we even try to send the HTTP header to it
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85 */
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86 #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499
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87
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88
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89 #define NGX_HTTP_INTERNAL_SERVER_ERROR 500
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90 #define NGX_HTTP_NOT_IMPLEMENTED 501
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91 #define NGX_HTTP_BAD_GATEWAY 502
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92 #define NGX_HTTP_SERVICE_UNAVAILABLE 503
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93 #define NGX_HTTP_GATEWAY_TIME_OUT 504
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94
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95
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96 typedef enum {
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97 NGX_HTTP_RESTRICT_HOST_OFF = 0,
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98 NGX_HTTP_RESTRICT_HOST_ON,
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99 NGX_HTTP_RESTRICT_HOST_CLOSE
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100 } ngx_http_restrict_host_e;
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101
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102
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103 typedef enum {
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104 NGX_HTTP_INITING_REQUEST_STATE = 0,
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105 NGX_HTTP_READING_REQUEST_STATE,
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106 NGX_HTTP_PROCESS_REQUEST_STATE,
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107
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108 NGX_HTTP_CONNECT_UPSTREAM_STATE,
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109 NGX_HTTP_WRITING_UPSTREAM_STATE,
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110 NGX_HTTP_READING_UPSTREAM_STATE,
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111
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112 NGX_HTTP_WRITING_REQUEST_STATE,
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113 NGX_HTTP_LINGERING_CLOSE_STATE,
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114 NGX_HTTP_KEEPALIVE_STATE
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115 } ngx_http_state_e;
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116
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117
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118 typedef struct {
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50
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119 ngx_str_t name;
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120 ngx_uint_t offset;
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58
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121 ngx_http_header_handler_pt handler;
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0
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122 } ngx_http_header_t;
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123
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124
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125 typedef struct {
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58
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126 ngx_str_t name;
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127 ngx_uint_t offset;
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128 } ngx_http_header0_t;
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129
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130
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131 typedef struct {
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50
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132 ngx_list_t headers;
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0
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133
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50
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134 ngx_table_elt_t *host;
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135 ngx_table_elt_t *connection;
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136 ngx_table_elt_t *if_modified_since;
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137 ngx_table_elt_t *user_agent;
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138 ngx_table_elt_t *referer;
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139 ngx_table_elt_t *content_length;
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140 ngx_table_elt_t *content_type;
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0
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141
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50
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142 ngx_table_elt_t *range;
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0
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143
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144 #if (NGX_HTTP_GZIP)
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50
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145 ngx_table_elt_t *accept_encoding;
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146 ngx_table_elt_t *via;
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0
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147 #endif
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148
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50
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149 ngx_table_elt_t *authorization;
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0
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150
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50
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151 ngx_table_elt_t *keep_alive;
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0
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152
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153 #if (NGX_HTTP_PROXY)
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50
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154 ngx_table_elt_t *x_forwarded_for;
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155 ngx_table_elt_t *x_real_ip;
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156 ngx_table_elt_t *x_url;
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0
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157 #endif
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158
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38
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159 #if (NGX_HTTP_HEADERS)
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50
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160 ngx_table_elt_t *accept;
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161 ngx_table_elt_t *accept_language;
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38
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162 #endif
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163
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52
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164 ngx_str_t user;
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165 ngx_str_t passwd;
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166
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50
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167 ngx_array_t cookies;
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168
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169 size_t host_name_len;
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170 ssize_t content_length_n;
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171 time_t keep_alive_n;
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0
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172
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50
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173 unsigned connection_type:2;
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174 unsigned msie:1;
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175 unsigned msie4:1;
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176 unsigned opera:1;
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177 unsigned gecko:1;
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178 unsigned konqueror:1;
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0
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179 } ngx_http_headers_in_t;
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180
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181
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182 typedef struct {
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50
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183 off_t start;
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184 off_t end;
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185 ngx_str_t content_range;
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0
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186 } ngx_http_range_t;
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187
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188
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189 typedef struct {
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50
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190 ngx_list_t headers;
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0
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191
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50
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192 ngx_uint_t status;
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193 ngx_str_t status_line;
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0
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194
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50
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195 ngx_table_elt_t *server;
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196 ngx_table_elt_t *date;
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197 ngx_table_elt_t *content_length;
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198 ngx_table_elt_t *content_encoding;
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199 ngx_table_elt_t *location;
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200 ngx_table_elt_t *last_modified;
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201 ngx_table_elt_t *content_range;
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202 ngx_table_elt_t *accept_ranges;
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52
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203 ngx_table_elt_t *www_authenticate;
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50
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204 ngx_table_elt_t *expires;
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205 ngx_table_elt_t *etag;
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0
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206
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58
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207 ngx_str_t content_type;
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50
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208 ngx_str_t charset;
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209 ngx_array_t ranges;
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0
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210
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58
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211 ngx_array_t cache_control;
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212
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50
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213 off_t content_length_n;
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214 time_t date_time;
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215 time_t last_modified_time;
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0
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216 } ngx_http_headers_out_t;
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217
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218
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28
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219 typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r);
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220
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0
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221 typedef struct {
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28
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222 ngx_temp_file_t *temp_file;
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223 ngx_chain_t *bufs;
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224 ngx_buf_t *buf;
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225 size_t rest;
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226 ngx_http_client_body_handler_pt post_handler;
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0
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227 } ngx_http_request_body_t;
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228
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229
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230 typedef struct {
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50
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231 ngx_http_request_t *request;
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0
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232
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233 ngx_buf_t **busy;
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234 ngx_int_t nbusy;
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0
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235
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50
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236 ngx_buf_t **free;
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237 ngx_int_t nfree;
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0
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238
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50
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239 ngx_uint_t pipeline; /* unsigned pipeline:1; */
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0
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240 } ngx_http_connection_t;
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241
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242
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58
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243 typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t;
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244
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245 struct ngx_http_postponed_request_s {
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246 ngx_http_request_t *request;
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247 ngx_chain_t *out;
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248 ngx_http_postponed_request_t *next;
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249 };
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250
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251
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0
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252 typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r);
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58
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253 typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r);
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254
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0
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255
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256 struct ngx_http_request_s {
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50
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257 uint32_t signature; /* "HTTP" */
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0
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258
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50
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259 ngx_connection_t *connection;
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0
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260
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50
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261 void **ctx;
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262 void **main_conf;
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263 void **srv_conf;
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264 void **loc_conf;
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0
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265
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58
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266 ngx_http_event_handler_pt read_event_handler;
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267 ngx_http_event_handler_pt write_event_handler;
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268
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50
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269 ngx_http_cache_t *cache;
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0
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270
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50
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271 ngx_http_upstream_t *upstream;
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28
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272
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50
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273 ngx_pool_t *pool;
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274 ngx_buf_t *header_in;
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0
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275
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50
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276 ngx_http_headers_in_t headers_in;
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277 ngx_http_headers_out_t headers_out;
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0
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278
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50
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279 ngx_http_request_body_t *request_body;
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0
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280
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50
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281 time_t lingering_time;
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282 time_t start_time;
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0
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283
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50
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284 ngx_uint_t method;
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285 ngx_uint_t http_version;
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286 ngx_uint_t http_major;
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287 ngx_uint_t http_minor;
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288
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289 ngx_str_t request_line;
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290 ngx_str_t uri;
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291 ngx_str_t args;
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292 ngx_str_t exten;
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293 ngx_str_t unparsed_uri;
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0
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294
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50
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295 ngx_str_t method_name;
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296 ngx_str_t http_protocol;
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297
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58
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298 ngx_chain_t *out;
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50
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299 ngx_http_request_t *main;
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58
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300 ngx_http_request_t *parent;
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301 ngx_http_postponed_request_t *postponed;
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0
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302
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50
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303 uint32_t in_addr;
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304 ngx_uint_t port;
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305 ngx_str_t *port_text; /* ":80" */
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306 ngx_str_t server_name;
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307 ngx_http_in_addr_t *virtual_names;
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0
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308
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50
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309 ngx_uint_t phase;
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310 ngx_int_t phase_handler;
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311 ngx_http_handler_pt content_handler;
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34
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312
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50
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313 ngx_http_variable_value_t **variables;
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314
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0
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315 /* used to learn the Apache compatible response length without a header */
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50
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316 size_t header_size;
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0
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317
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50
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318 size_t request_length;
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24
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319
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50
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320 void **err_ctx;
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321 ngx_uint_t err_status;
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0
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322
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50
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323 ngx_http_connection_t *http_connection;
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0
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324
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58
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325 ngx_http_log_handler_pt log_handler;
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326
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50
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327 unsigned http_state:4;
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0
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328
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2
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329 /* URI with "/." and on Win32 with "//" */
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50
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330 unsigned complex_uri:1;
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34
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331
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2
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332 /* URI with "%" */
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50
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333 unsigned quoted_uri:1;
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34
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334
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335 /* URI with "+" */
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50
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336 unsigned plus_in_uri:1;
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34
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337
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38
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338 /* URI with "\0" or "%00" */
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50
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339 unsigned zero_in_uri:1;
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38
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340
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60
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341 unsigned invalid_header:1;
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342
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58
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343 unsigned valid_location:1;
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54
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344 unsigned valid_unparsed_uri:1;
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50
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345 unsigned uri_changed:1;
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346 unsigned uri_changes:4;
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34
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347
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50
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348 unsigned low_case_exten:1;
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349 unsigned header_timeout_set:1;
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0
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350
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50
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351 unsigned proxy:1;
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352 unsigned bypass_cache:1;
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353 unsigned no_cache:1;
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0
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354
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355 #if 0
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50
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356 unsigned cachable:1;
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0
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357 #endif
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58
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358
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50
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359 unsigned pipeline:1;
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360 unsigned plain_http:1;
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361 unsigned chunked:1;
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362 unsigned header_only:1;
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363 unsigned keepalive:1;
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364 unsigned lingering_close:1;
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58
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365 unsigned internal:1;
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50
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366 unsigned closed:1;
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58
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367 unsigned done:1;
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0
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368
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50
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369 unsigned filter_need_in_memory:1;
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370 unsigned filter_ssi_need_in_memory:1;
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371 unsigned filter_need_temporary:1;
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372 unsigned filter_allow_ranges:1;
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0
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373
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374 #if (NGX_STAT_STUB)
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50
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375 unsigned stat_reading:1;
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376 unsigned stat_writing:1;
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0
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377 #endif
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378
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379 /* used to parse HTTP headers */
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50
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380 ngx_uint_t state;
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381 u_char *uri_start;
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382 u_char *uri_end;
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383 u_char *uri_ext;
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384 u_char *args_start;
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385 u_char *request_start;
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386 u_char *request_end;
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387 u_char *method_end;
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388 u_char *schema_start;
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389 u_char *schema_end;
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390 u_char *host_start;
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391 u_char *host_end;
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392 u_char *port_start;
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393 u_char *port_end;
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394 u_char *header_name_start;
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395 u_char *header_name_end;
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396 u_char *header_start;
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397 u_char *header_end;
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56
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398 ngx_uint_t header_hash;
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0
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399 };
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400
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401
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|
56
|
402 extern ngx_http_header_t ngx_http_headers_in[];
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|
58
|
403 extern ngx_http_header0_t ngx_http_headers_out[];
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|
0
|
404
|
|
|
405
|
|
|
406 #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */
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