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 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 ngx_int_t ngx_http_parse_request_line(ngx_http_request_t *r, ngx_buf_t *b)
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13 {
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14 u_char ch, *p, *m;
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15 enum {
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16 sw_start = 0,
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17 sw_method,
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18 sw_space_after_method,
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19 sw_spaces_before_uri,
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20 sw_schema,
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21 sw_schema_slash,
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22 sw_schema_slash_slash,
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23 sw_host,
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24 sw_port,
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25 sw_after_slash_in_uri,
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26 sw_check_uri,
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27 sw_uri,
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28 sw_http_09,
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29 sw_http_H,
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30 sw_http_HT,
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31 sw_http_HTT,
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32 sw_http_HTTP,
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33 sw_first_major_digit,
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34 sw_major_digit,
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35 sw_first_minor_digit,
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36 sw_minor_digit,
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37 sw_almost_done,
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38 sw_done
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39 } state;
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40
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41 state = r->state;
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42 p = b->pos;
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43
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44 while (p < b->last && state < sw_done) {
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45 ch = *p++;
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46
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47 /* gcc 2.95.2 and msvc 6.0 compile this switch as an jump table */
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48
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49 switch (state) {
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50
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51 /* HTTP methods: GET, HEAD, POST */
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52 case sw_start:
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53 r->request_start = p - 1;
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54
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55 if (ch == CR || ch == LF) {
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56 break;
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57 }
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58
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59 if (ch < 'A' || ch > 'Z') {
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60 return NGX_HTTP_PARSE_INVALID_METHOD;
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61 }
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62
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63 state = sw_method;
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64 break;
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65
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66 case sw_method:
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67 if (ch == ' ') {
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68 r->method_end = p - 1;
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69 m = r->request_start;
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70
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71 if (r->method_end - m == 3) {
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72
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73 if (m[0] == 'G' && m[1] == 'E' && m[2] == 'T') {
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74 r->method = NGX_HTTP_GET;
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75 }
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76
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77 } else if (r->method_end - m == 4) {
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78
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79 if (m[0] == 'P' && m[1] == 'O'
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80 && m[2] == 'T' && m[3] == 'T')
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81 {
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82 r->method = NGX_HTTP_POST;
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83
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84 } else if (m[0] == 'H' && m[1] == 'E'
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85 && m[2] == 'A' && m[3] == 'D')
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86 {
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87 r->method = NGX_HTTP_HEAD;
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88 }
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89 }
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90
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91 state = sw_spaces_before_uri;
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92 break;
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93 }
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94
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95 if (ch < 'A' || ch > 'Z') {
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96 return NGX_HTTP_PARSE_INVALID_METHOD;
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97 }
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98
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99 break;
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100
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101 /* single space after method */
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102 case sw_space_after_method:
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103 switch (ch) {
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104 case ' ':
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105 state = sw_spaces_before_uri;
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106 break;
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107 default:
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108 return NGX_HTTP_PARSE_INVALID_METHOD;
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109 }
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110 break;
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111
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112 /* space* before URI */
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113 case sw_spaces_before_uri:
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114 switch (ch) {
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115 case '/':
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116 r->uri_start = p - 1;
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117 state = sw_after_slash_in_uri;
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118 break;
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119 case ' ':
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120 break;
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121 default:
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122 if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')) {
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123 r->schema_start = p - 1;
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124 state = sw_schema;
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125 break;
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126 }
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127 return NGX_HTTP_PARSE_INVALID_REQUEST;
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128 }
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129 break;
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130
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131 case sw_schema:
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132 switch (ch) {
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133 case ':':
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134 r->schema_end = p - 1;
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135 state = sw_schema_slash;
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136 break;
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137 default:
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138 if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')) {
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139 break;
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140 }
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141 return NGX_HTTP_PARSE_INVALID_REQUEST;
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142 }
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143 break;
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144
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145 case sw_schema_slash:
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146 switch (ch) {
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147 case '/':
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148 state = sw_schema_slash_slash;
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149 break;
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150 default:
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151 return NGX_HTTP_PARSE_INVALID_REQUEST;
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152 }
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153 break;
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154
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155 case sw_schema_slash_slash:
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156 switch (ch) {
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157 case '/':
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158 r->host_start = p - 1;
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159 state = sw_host;
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160 break;
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161 default:
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162 return NGX_HTTP_PARSE_INVALID_REQUEST;
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163 }
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164 break;
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165
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166 case sw_host:
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167 switch (ch) {
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168 case ':':
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169 r->host_end = p - 1;
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170 state = sw_port;
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171 break;
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172 case '/':
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173 r->host_end = p - 1;
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174 r->uri_start = p - 1;
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175 state = sw_after_slash_in_uri;
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176 break;
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177 default:
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178 if ((ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')
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179 || (ch >= '0' && ch <= '9') || ch == '.' || ch == '-')
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180 {
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181 break;
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182 }
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183 return NGX_HTTP_PARSE_INVALID_REQUEST;
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184 }
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185 break;
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186
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187 case sw_port:
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188 switch (ch) {
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189 case '/':
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190 r->port_end = p - 1;
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191 r->uri_start = p - 1;
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192 state = sw_after_slash_in_uri;
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193 break;
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194 default:
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195 if (ch < '0' && ch > '9') {
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196 return NGX_HTTP_PARSE_INVALID_REQUEST;
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197 }
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198 break;
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199 }
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200 break;
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201
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10
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202 /* check "/.", "//", "%", and "\" (Win32) in URI */
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0
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203 case sw_after_slash_in_uri:
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204 switch (ch) {
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205 case CR:
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206 r->uri_end = p - 1;
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207 r->http_minor = 9;
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208 state = sw_almost_done;
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209 break;
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210 case LF:
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211 r->uri_end = p - 1;
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212 r->http_minor = 9;
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213 state = sw_done;
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214 break;
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215 case ' ':
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216 r->uri_end = p - 1;
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217 state = sw_http_09;
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218 break;
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219 case '.':
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2
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220 r->complex_uri = 1;
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221 state = sw_uri;
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222 break;
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0
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223 case '%':
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2
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224 r->quoted_uri = 1;
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0
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225 state = sw_uri;
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226 break;
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10
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227 #if (NGX_WIN32)
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228 case '\\':
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229 r->complex_uri = 1;
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230 break;
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231 #endif
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0
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232 case '/':
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233 r->complex_uri = 1;
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234 break;
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235 case '?':
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236 r->args_start = p;
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237 state = sw_uri;
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238 break;
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239 default:
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240 state = sw_check_uri;
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241 break;
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242 }
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243 break;
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244
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10
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245 /* check "/", "%" and "\" (Win32) in URI */
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0
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246 case sw_check_uri:
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247 switch (ch) {
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248 case CR:
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249 r->uri_end = p - 1;
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250 r->http_minor = 9;
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251 state = sw_almost_done;
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252 break;
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253 case LF:
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254 r->uri_end = p - 1;
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255 r->http_minor = 9;
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256 state = sw_done;
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257 break;
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258 case ' ':
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259 r->uri_end = p - 1;
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260 state = sw_http_09;
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261 break;
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262 case '.':
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263 r->uri_ext = p;
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264 break;
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10
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265 #if (NGX_WIN32)
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266 case '\\':
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267 r->complex_uri = 1;
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268 state = sw_after_slash_in_uri;
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269 break;
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270 #endif
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0
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271 case '/':
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272 r->uri_ext = NULL;
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273 state = sw_after_slash_in_uri;
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274 break;
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275 case '%':
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2
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276 r->quoted_uri = 1;
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0
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277 state = sw_uri;
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278 break;
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279 case '?':
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280 r->args_start = p;
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281 state = sw_uri;
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282 break;
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283 }
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284 break;
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285
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286 /* URI */
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287 case sw_uri:
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288 switch (ch) {
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289 case CR:
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290 r->uri_end = p - 1;
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291 r->http_minor = 9;
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292 state = sw_almost_done;
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293 break;
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294 case LF:
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295 r->uri_end = p - 1;
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296 r->http_minor = 9;
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297 state = sw_done;
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298 break;
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299 case ' ':
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300 r->uri_end = p - 1;
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301 state = sw_http_09;
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302 break;
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303 }
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304 break;
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305
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306 /* space+ after URI */
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307 case sw_http_09:
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308 switch (ch) {
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309 case ' ':
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310 break;
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311 case CR:
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312 r->http_minor = 9;
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313 state = sw_almost_done;
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314 break;
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315 case LF:
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316 r->http_minor = 9;
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317 state = sw_done;
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318 break;
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319 case 'H':
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320 state = sw_http_H;
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321 break;
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322 default:
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323 return NGX_HTTP_PARSE_INVALID_REQUEST;
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324 }
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325 break;
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326
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327 case sw_http_H:
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328 switch (ch) {
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329 case 'T':
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330 state = sw_http_HT;
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331 break;
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332 default:
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333 return NGX_HTTP_PARSE_INVALID_REQUEST;
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334 }
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335 break;
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336
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337 case sw_http_HT:
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338 switch (ch) {
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339 case 'T':
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340 state = sw_http_HTT;
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341 break;
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342 default:
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343 return NGX_HTTP_PARSE_INVALID_REQUEST;
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344 }
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345 break;
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346
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347 case sw_http_HTT:
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348 switch (ch) {
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349 case 'P':
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350 state = sw_http_HTTP;
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351 break;
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352 default:
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353 return NGX_HTTP_PARSE_INVALID_REQUEST;
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354 }
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355 break;
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356
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357 case sw_http_HTTP:
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358 switch (ch) {
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359 case '/':
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360 state = sw_first_major_digit;
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361 break;
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362 default:
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363 return NGX_HTTP_PARSE_INVALID_REQUEST;
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364 }
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365 break;
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366
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367 /* first digit of major HTTP version */
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368 case sw_first_major_digit:
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369 if (ch < '1' || ch > '9') {
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370 return NGX_HTTP_PARSE_INVALID_REQUEST;
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371 }
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372
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373 r->http_major = ch - '0';
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374 state = sw_major_digit;
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375 break;
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376
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377 /* major HTTP version or dot */
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378 case sw_major_digit:
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379 if (ch == '.') {
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380 state = sw_first_minor_digit;
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381 break;
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382 }
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383
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384 if (ch < '0' || ch > '9') {
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385 return NGX_HTTP_PARSE_INVALID_REQUEST;
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386 }
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387
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388 r->http_major = r->http_major * 10 + ch - '0';
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389 break;
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390
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391 /* first digit of minor HTTP version */
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392 case sw_first_minor_digit:
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393 if (ch < '0' || ch > '9') {
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394 return NGX_HTTP_PARSE_INVALID_REQUEST;
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395 }
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396
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397 r->http_minor = ch - '0';
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398 state = sw_minor_digit;
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399 break;
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400
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401 /* minor HTTP version or end of request line */
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402 case sw_minor_digit:
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403 if (ch == CR) {
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404 state = sw_almost_done;
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405 break;
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406 }
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407
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408 if (ch == LF) {
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409 state = sw_done;
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410 break;
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411 }
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412
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413 if (ch < '0' || ch > '9') {
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414 return NGX_HTTP_PARSE_INVALID_REQUEST;
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415 }
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416
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417 r->http_minor = r->http_minor * 10 + ch - '0';
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418 break;
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419
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420 /* end of request line */
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421 case sw_almost_done:
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422 r->request_end = p - 2;
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423 switch (ch) {
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424 case LF:
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425 state = sw_done;
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426 break;
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427 default:
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428 return NGX_HTTP_PARSE_INVALID_REQUEST;
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429 }
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430 break;
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431
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432 /* suppress warning */
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433 case sw_done:
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434 break;
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435 }
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436 }
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437
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438 b->pos = p;
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439
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440 if (state == sw_done) {
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441 if (r->request_end == NULL) {
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442 r->request_end = p - 1;
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443 }
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444
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445 r->http_version = r->http_major * 1000 + r->http_minor;
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446 r->state = sw_start;
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447
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448 if (r->http_version == 9 && r->method != NGX_HTTP_GET) {
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449 return NGX_HTTP_PARSE_INVALID_09_METHOD;
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450 }
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451
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452 return NGX_OK;
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453
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454 } else {
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455 r->state = state;
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456 return NGX_AGAIN;
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457 }
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458 }
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459
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460
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461 ngx_int_t ngx_http_parse_header_line(ngx_http_request_t *r, ngx_buf_t *b)
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462 {
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463 u_char c, ch, *p;
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464 enum {
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465 sw_start = 0,
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466 sw_name,
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467 sw_space_before_value,
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468 sw_value,
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469 sw_space_after_value,
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470 sw_almost_done,
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471 sw_header_almost_done,
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472 sw_ignore_line,
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473 sw_done,
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474 sw_header_done
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475 } state;
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476
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477 state = r->state;
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478 p = b->pos;
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479
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480 while (p < b->last && state < sw_done) {
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481 ch = *p++;
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482
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483 switch (state) {
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484
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485 /* first char */
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486 case sw_start:
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487 switch (ch) {
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488 case CR:
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489 r->header_end = p - 1;
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490 state = sw_header_almost_done;
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491 break;
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492 case LF:
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493 r->header_end = p - 1;
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494 state = sw_header_done;
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495 break;
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496 default:
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497 state = sw_name;
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498 r->header_name_start = p - 1;
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499
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500 c = (u_char) (ch | 0x20);
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501 if (c >= 'a' && c <= 'z') {
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502 break;
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503 }
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504
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505 if (ch == '-' || ch == '_' || ch == '~' || ch == '.') {
|
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506 break;
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507 }
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508
|
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509 if (ch >= '0' && ch <= '9') {
|
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510 break;
|
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511 }
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512
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513 return NGX_HTTP_PARSE_INVALID_HEADER;
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514
|
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515 }
|
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516 break;
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517
|
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518 /* header name */
|
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519 case sw_name:
|
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520 c = (u_char) (ch | 0x20);
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521 if (c >= 'a' && c <= 'z') {
|
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522 break;
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523 }
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524
|
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525 if (ch == ':') {
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526 r->header_name_end = p - 1;
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527 state = sw_space_before_value;
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528 break;
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529 }
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530
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531 if (ch == '-' || ch == '_' || ch == '~' || ch == '.') {
|
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532 break;
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533 }
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534
|
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535 if (ch >= '0' && ch <= '9') {
|
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536 break;
|
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537 }
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538
|
2
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539 /* IIS may send the duplicate "HTTP/1.1 ..." lines */
|
0
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540 if (ch == '/'
|
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541 && r->proxy
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542 && p - r->header_start == 5
|
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543 && ngx_strncmp(r->header_start, "HTTP", 4) == 0)
|
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544 {
|
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545 state = sw_ignore_line;
|
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546 break;
|
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547 }
|
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548
|
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549 return NGX_HTTP_PARSE_INVALID_HEADER;
|
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550
|
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551 /* space* before header value */
|
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552 case sw_space_before_value:
|
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553 switch (ch) {
|
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554 case ' ':
|
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555 break;
|
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556 case CR:
|
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557 r->header_start = r->header_end = p - 1;
|
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558 state = sw_almost_done;
|
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559 break;
|
|
560 case LF:
|
|
561 r->header_start = r->header_end = p - 1;
|
|
562 state = sw_done;
|
|
563 break;
|
|
564 default:
|
|
565 r->header_start = p - 1;
|
|
566 state = sw_value;
|
|
567 break;
|
|
568 }
|
|
569 break;
|
|
570
|
|
571 /* header value */
|
|
572 case sw_value:
|
|
573 switch (ch) {
|
|
574 case ' ':
|
|
575 r->header_end = p - 1;
|
|
576 state = sw_space_after_value;
|
|
577 break;
|
|
578 case CR:
|
|
579 r->header_end = p - 1;
|
|
580 state = sw_almost_done;
|
|
581 break;
|
|
582 case LF:
|
|
583 r->header_end = p - 1;
|
|
584 state = sw_done;
|
|
585 break;
|
|
586 }
|
|
587 break;
|
|
588
|
|
589 /* space* before end of header line */
|
|
590 case sw_space_after_value:
|
|
591 switch (ch) {
|
|
592 case ' ':
|
|
593 break;
|
|
594 case CR:
|
|
595 state = sw_almost_done;
|
|
596 break;
|
|
597 case LF:
|
|
598 state = sw_done;
|
|
599 break;
|
|
600 default:
|
|
601 state = sw_value;
|
|
602 break;
|
|
603 }
|
|
604 break;
|
|
605
|
|
606 /* ignore header line */
|
|
607 case sw_ignore_line:
|
|
608 switch (ch) {
|
|
609 case LF:
|
|
610 state = sw_start;
|
|
611 break;
|
|
612 default:
|
|
613 break;
|
|
614 }
|
|
615 break;
|
|
616
|
|
617 /* end of header line */
|
|
618 case sw_almost_done:
|
|
619 switch (ch) {
|
|
620 case LF:
|
|
621 state = sw_done;
|
|
622 break;
|
|
623 default:
|
|
624 return NGX_HTTP_PARSE_INVALID_HEADER;
|
|
625 }
|
|
626 break;
|
|
627
|
|
628 /* end of header */
|
|
629 case sw_header_almost_done:
|
|
630 switch (ch) {
|
|
631 case LF:
|
|
632 state = sw_header_done;
|
|
633 break;
|
|
634 default:
|
|
635 return NGX_HTTP_PARSE_INVALID_HEADER;
|
|
636 }
|
|
637 break;
|
|
638
|
|
639 /* suppress warning */
|
|
640 case sw_done:
|
|
641 case sw_header_done:
|
|
642 break;
|
|
643 }
|
|
644 }
|
|
645
|
|
646 b->pos = p;
|
|
647
|
|
648 if (state == sw_done) {
|
|
649 r->state = sw_start;
|
|
650 return NGX_OK;
|
|
651
|
|
652 } else if (state == sw_header_done) {
|
|
653 r->state = sw_start;
|
|
654 return NGX_HTTP_PARSE_HEADER_DONE;
|
|
655
|
|
656 } else {
|
|
657 r->state = state;
|
|
658 return NGX_AGAIN;
|
|
659 }
|
|
660 }
|
|
661
|
|
662
|
|
663 ngx_int_t ngx_http_parse_complex_uri(ngx_http_request_t *r)
|
|
664 {
|
|
665 u_char c, ch, decoded, *p, *u;
|
|
666 enum {
|
|
667 sw_usual = 0,
|
|
668 sw_slash,
|
|
669 sw_dot,
|
|
670 sw_dot_dot,
|
10
|
671 #if (NGX_WIN32)
|
0
|
672 sw_dot_dot_dot,
|
|
673 #endif
|
|
674 sw_quoted,
|
|
675 sw_quoted_second
|
|
676 } state, quoted_state;
|
|
677
|
|
678 decoded = '\0';
|
|
679 quoted_state = sw_usual;
|
|
680
|
|
681 state = sw_usual;
|
|
682 p = r->uri_start;
|
|
683 u = r->uri.data;
|
|
684 r->uri_ext = NULL;
|
10
|
685 r->args_start = NULL;
|
0
|
686
|
|
687 ch = *p++;
|
|
688
|
18
|
689 while (p < r->uri_end && r->args_start == NULL) {
|
10
|
690
|
|
691 /*
|
|
692 * we use "ch = *p++" inside the cycle but this operation is safe
|
|
693 * because after the URI there is always at least one charcter:
|
|
694 * the line feed
|
|
695 */
|
0
|
696
|
|
697 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
698 "s:%d in:'%Xd:%c', out:'%c'", state, ch, ch, *u);
|
0
|
699
|
|
700 switch (state) {
|
|
701 case sw_usual:
|
|
702 switch(ch) {
|
10
|
703 #if (NGX_WIN32)
|
|
704 case '\\':
|
|
705 r->uri_ext = NULL;
|
|
706
|
|
707 if (p == r->uri_start + r->uri.len) {
|
|
708
|
|
709 /*
|
|
710 * we omit the last "\" to cause redirect because
|
|
711 * the browsers do not treat "\" as "/" in relative URL path
|
|
712 */
|
|
713
|
|
714 break;
|
|
715 }
|
|
716
|
|
717 state = sw_slash;
|
|
718 *u++ = '/';
|
|
719 break;
|
|
720 #endif
|
0
|
721 case '/':
|
|
722 r->uri_ext = NULL;
|
|
723 state = sw_slash;
|
|
724 *u++ = ch;
|
|
725 break;
|
|
726 case '%':
|
|
727 quoted_state = state;
|
|
728 state = sw_quoted;
|
|
729 break;
|
10
|
730 case '?':
|
|
731 r->args_start = p;
|
|
732 break;
|
0
|
733 case '.':
|
|
734 r->uri_ext = u + 1;
|
|
735 default:
|
|
736 *u++ = ch;
|
|
737 break;
|
|
738 }
|
|
739 ch = *p++;
|
|
740 break;
|
|
741
|
|
742 case sw_slash:
|
|
743 switch(ch) {
|
10
|
744 #if (NGX_WIN32)
|
|
745 case '\\':
|
|
746 break;
|
|
747 #endif
|
0
|
748 case '/':
|
|
749 break;
|
|
750 case '.':
|
|
751 state = sw_dot;
|
|
752 *u++ = ch;
|
|
753 break;
|
|
754 case '%':
|
|
755 quoted_state = state;
|
|
756 state = sw_quoted;
|
|
757 break;
|
|
758 default:
|
|
759 state = sw_usual;
|
|
760 *u++ = ch;
|
|
761 break;
|
|
762 }
|
|
763 ch = *p++;
|
|
764 break;
|
|
765
|
|
766 case sw_dot:
|
|
767 switch(ch) {
|
10
|
768 #if (NGX_WIN32)
|
|
769 case '\\':
|
|
770 /* fall through */
|
|
771 #endif
|
0
|
772 case '/':
|
|
773 state = sw_slash;
|
|
774 u--;
|
|
775 break;
|
|
776 case '.':
|
|
777 state = sw_dot_dot;
|
|
778 *u++ = ch;
|
|
779 break;
|
|
780 case '%':
|
|
781 quoted_state = state;
|
|
782 state = sw_quoted;
|
|
783 break;
|
|
784 default:
|
|
785 state = sw_usual;
|
|
786 *u++ = ch;
|
|
787 break;
|
|
788 }
|
|
789 ch = *p++;
|
|
790 break;
|
|
791
|
|
792 case sw_dot_dot:
|
|
793 switch(ch) {
|
10
|
794 #if (NGX_WIN32)
|
|
795 case '\\':
|
|
796 /* fall through */
|
|
797 #endif
|
0
|
798 case '/':
|
|
799 state = sw_slash;
|
|
800 u -= 4;
|
|
801 if (u < r->uri.data) {
|
|
802 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
803 }
|
|
804 while (*(u - 1) != '/') {
|
|
805 u--;
|
|
806 }
|
|
807 break;
|
|
808 case '%':
|
|
809 quoted_state = state;
|
|
810 state = sw_quoted;
|
|
811 break;
|
10
|
812 #if (NGX_WIN32)
|
0
|
813 case '.':
|
|
814 state = sw_dot_dot_dot;
|
|
815 *u++ = ch;
|
|
816 break;
|
|
817 #endif
|
|
818 default:
|
|
819 state = sw_usual;
|
|
820 *u++ = ch;
|
|
821 break;
|
|
822 }
|
|
823 ch = *p++;
|
|
824 break;
|
|
825
|
10
|
826 #if (NGX_WIN32)
|
0
|
827 case sw_dot_dot_dot:
|
|
828 switch(ch) {
|
10
|
829 case '\\':
|
0
|
830 case '/':
|
|
831 state = sw_slash;
|
|
832 u -= 5;
|
|
833 if (u < r->uri.data) {
|
|
834 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
835 }
|
|
836 while (*u != '/') {
|
|
837 u--;
|
|
838 }
|
|
839 if (u < r->uri.data) {
|
|
840 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
841 }
|
|
842 while (*(u - 1) != '/') {
|
|
843 u--;
|
|
844 }
|
|
845 break;
|
|
846 case '%':
|
|
847 quoted_state = state;
|
|
848 state = sw_quoted;
|
|
849 break;
|
|
850 default:
|
|
851 state = sw_usual;
|
|
852 *u++ = ch;
|
|
853 break;
|
|
854 }
|
|
855 ch = *p++;
|
|
856 break;
|
|
857 #endif
|
|
858
|
|
859 case sw_quoted:
|
|
860 if (ch >= '0' && ch <= '9') {
|
|
861 decoded = (u_char) (ch - '0');
|
|
862 state = sw_quoted_second;
|
|
863 ch = *p++;
|
|
864 break;
|
|
865 }
|
|
866
|
|
867 c = (u_char) (ch | 0x20);
|
|
868 if (c >= 'a' && c <= 'f') {
|
|
869 decoded = (u_char) (c - 'a' + 10);
|
|
870 state = sw_quoted_second;
|
|
871 ch = *p++;
|
|
872 break;
|
|
873 }
|
|
874
|
|
875 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
876
|
|
877 case sw_quoted_second:
|
|
878 if (ch >= '0' && ch <= '9') {
|
|
879 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
880 if (ch == '%') {
|
|
881 state = sw_usual;
|
|
882 *u++ = ch;
|
|
883 ch = *p++;
|
|
884 break;
|
|
885 }
|
|
886 state = quoted_state;
|
|
887 break;
|
|
888 }
|
|
889
|
|
890 c = (u_char) (ch | 0x20);
|
|
891 if (c >= 'a' && c <= 'f') {
|
|
892 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
893 if (ch == '%') {
|
|
894 state = sw_usual;
|
|
895 *u++ = ch;
|
|
896 ch = *p++;
|
|
897 break;
|
|
898 }
|
|
899 state = quoted_state;
|
|
900 break;
|
|
901 }
|
|
902
|
|
903 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
904 }
|
|
905 }
|
|
906
|
|
907 r->uri.len = u - r->uri.data;
|
|
908 r->uri.data[r->uri.len] = '\0';
|
|
909
|
|
910 if (r->uri_ext) {
|
|
911 r->exten.len = u - r->uri_ext;
|
10
|
912 r->exten.data = r->uri_ext;
|
0
|
913 }
|
|
914
|
|
915 r->uri_ext = NULL;
|
|
916
|
|
917 return NGX_OK;
|
|
918 }
|