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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 #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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202 /* check "/.", "//", and "%" in URI */
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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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227 case '/':
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228 r->complex_uri = 1;
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229 break;
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230 case '?':
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231 r->args_start = p;
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232 state = sw_uri;
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233 break;
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234 default:
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235 state = sw_check_uri;
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236 break;
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237 }
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238 break;
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239
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240 /* check "/" and "%" in URI */
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241 case sw_check_uri:
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242 switch (ch) {
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243 case CR:
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244 r->uri_end = p - 1;
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245 r->http_minor = 9;
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246 state = sw_almost_done;
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247 break;
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248 case LF:
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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_done;
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252 break;
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253 case ' ':
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254 r->uri_end = p - 1;
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255 state = sw_http_09;
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256 break;
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257 case '.':
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258 r->uri_ext = p;
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259 break;
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260 case '/':
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261 r->uri_ext = NULL;
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262 state = sw_after_slash_in_uri;
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263 break;
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264 case '%':
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2
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265 r->quoted_uri = 1;
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0
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266 state = sw_uri;
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267 break;
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268 case '?':
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269 r->args_start = p;
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270 state = sw_uri;
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271 break;
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272 }
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273 break;
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274
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275 /* URI */
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276 case sw_uri:
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277 switch (ch) {
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278 case CR:
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279 r->uri_end = p - 1;
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280 r->http_minor = 9;
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281 state = sw_almost_done;
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282 break;
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283 case LF:
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284 r->uri_end = p - 1;
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285 r->http_minor = 9;
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286 state = sw_done;
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287 break;
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288 case ' ':
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289 r->uri_end = p - 1;
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290 state = sw_http_09;
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291 break;
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292 }
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293 break;
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294
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295 /* space+ after URI */
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296 case sw_http_09:
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297 switch (ch) {
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298 case ' ':
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299 break;
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300 case CR:
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301 r->http_minor = 9;
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302 state = sw_almost_done;
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303 break;
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304 case LF:
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305 r->http_minor = 9;
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306 state = sw_done;
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307 break;
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308 case 'H':
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309 state = sw_http_H;
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310 break;
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311 default:
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312 return NGX_HTTP_PARSE_INVALID_REQUEST;
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313 }
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314 break;
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315
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316 case sw_http_H:
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317 switch (ch) {
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318 case 'T':
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319 state = sw_http_HT;
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320 break;
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321 default:
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322 return NGX_HTTP_PARSE_INVALID_REQUEST;
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323 }
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324 break;
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325
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326 case sw_http_HT:
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327 switch (ch) {
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328 case 'T':
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329 state = sw_http_HTT;
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330 break;
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331 default:
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332 return NGX_HTTP_PARSE_INVALID_REQUEST;
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333 }
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334 break;
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335
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336 case sw_http_HTT:
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337 switch (ch) {
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338 case 'P':
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339 state = sw_http_HTTP;
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340 break;
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341 default:
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342 return NGX_HTTP_PARSE_INVALID_REQUEST;
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343 }
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344 break;
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345
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346 case sw_http_HTTP:
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347 switch (ch) {
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348 case '/':
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349 state = sw_first_major_digit;
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350 break;
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351 default:
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352 return NGX_HTTP_PARSE_INVALID_REQUEST;
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353 }
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354 break;
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355
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356 /* first digit of major HTTP version */
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357 case sw_first_major_digit:
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358 if (ch < '1' || ch > '9') {
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359 return NGX_HTTP_PARSE_INVALID_REQUEST;
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360 }
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361
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362 r->http_major = ch - '0';
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363 state = sw_major_digit;
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364 break;
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365
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366 /* major HTTP version or dot */
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367 case sw_major_digit:
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368 if (ch == '.') {
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369 state = sw_first_minor_digit;
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370 break;
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371 }
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372
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373 if (ch < '0' || ch > '9') {
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374 return NGX_HTTP_PARSE_INVALID_REQUEST;
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375 }
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376
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377 r->http_major = r->http_major * 10 + ch - '0';
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378 break;
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379
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380 /* first digit of minor HTTP version */
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381 case sw_first_minor_digit:
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382 if (ch < '0' || ch > '9') {
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383 return NGX_HTTP_PARSE_INVALID_REQUEST;
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384 }
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385
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386 r->http_minor = ch - '0';
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387 state = sw_minor_digit;
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388 break;
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389
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390 /* minor HTTP version or end of request line */
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391 case sw_minor_digit:
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392 if (ch == CR) {
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393 state = sw_almost_done;
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394 break;
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395 }
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396
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397 if (ch == LF) {
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398 state = sw_done;
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399 break;
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400 }
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401
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402 if (ch < '0' || ch > '9') {
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403 return NGX_HTTP_PARSE_INVALID_REQUEST;
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404 }
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405
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406 r->http_minor = r->http_minor * 10 + ch - '0';
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407 break;
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408
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409 /* end of request line */
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410 case sw_almost_done:
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411 r->request_end = p - 2;
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412 switch (ch) {
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413 case LF:
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414 state = sw_done;
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415 break;
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416 default:
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417 return NGX_HTTP_PARSE_INVALID_REQUEST;
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418 }
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419 break;
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420
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421 /* suppress warning */
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422 case sw_done:
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423 break;
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424 }
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425 }
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426
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427 b->pos = p;
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428
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429 if (state == sw_done) {
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430 if (r->request_end == NULL) {
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431 r->request_end = p - 1;
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432 }
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433
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434 r->http_version = r->http_major * 1000 + r->http_minor;
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435 r->state = sw_start;
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436
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437 if (r->http_version == 9 && r->method != NGX_HTTP_GET) {
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438 return NGX_HTTP_PARSE_INVALID_09_METHOD;
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439 }
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440
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441 return NGX_OK;
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442
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443 } else {
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444 r->state = state;
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445 return NGX_AGAIN;
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446 }
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447 }
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448
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449
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450 ngx_int_t ngx_http_parse_header_line(ngx_http_request_t *r, ngx_buf_t *b)
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451 {
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452 u_char c, ch, *p;
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453 enum {
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454 sw_start = 0,
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455 sw_name,
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456 sw_space_before_value,
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457 sw_value,
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458 sw_space_after_value,
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459 sw_almost_done,
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460 sw_header_almost_done,
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461 sw_ignore_line,
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462 sw_done,
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463 sw_header_done
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464 } state;
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465
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466 state = r->state;
|
|
|
467 p = b->pos;
|
|
|
468
|
|
|
469 while (p < b->last && state < sw_done) {
|
|
|
470 ch = *p++;
|
|
|
471
|
|
|
472 switch (state) {
|
|
|
473
|
|
|
474 /* first char */
|
|
|
475 case sw_start:
|
|
|
476 switch (ch) {
|
|
|
477 case CR:
|
|
|
478 r->header_end = p - 1;
|
|
|
479 state = sw_header_almost_done;
|
|
|
480 break;
|
|
|
481 case LF:
|
|
|
482 r->header_end = p - 1;
|
|
|
483 state = sw_header_done;
|
|
|
484 break;
|
|
|
485 default:
|
|
|
486 state = sw_name;
|
|
|
487 r->header_name_start = p - 1;
|
|
|
488
|
|
|
489 c = (u_char) (ch | 0x20);
|
|
|
490 if (c >= 'a' && c <= 'z') {
|
|
|
491 break;
|
|
|
492 }
|
|
|
493
|
|
|
494 if (ch == '-' || ch == '_' || ch == '~' || ch == '.') {
|
|
|
495 break;
|
|
|
496 }
|
|
|
497
|
|
|
498 if (ch >= '0' && ch <= '9') {
|
|
|
499 break;
|
|
|
500 }
|
|
|
501
|
|
|
502 return NGX_HTTP_PARSE_INVALID_HEADER;
|
|
|
503
|
|
|
504 }
|
|
|
505 break;
|
|
|
506
|
|
|
507 /* header name */
|
|
|
508 case sw_name:
|
|
|
509 c = (u_char) (ch | 0x20);
|
|
|
510 if (c >= 'a' && c <= 'z') {
|
|
|
511 break;
|
|
|
512 }
|
|
|
513
|
|
|
514 if (ch == ':') {
|
|
|
515 r->header_name_end = p - 1;
|
|
|
516 state = sw_space_before_value;
|
|
|
517 break;
|
|
|
518 }
|
|
|
519
|
|
|
520 if (ch == '-' || ch == '_' || ch == '~' || ch == '.') {
|
|
|
521 break;
|
|
|
522 }
|
|
|
523
|
|
|
524 if (ch >= '0' && ch <= '9') {
|
|
|
525 break;
|
|
|
526 }
|
|
|
527
|
|
2
|
528 /* IIS may send the duplicate "HTTP/1.1 ..." lines */
|
|
0
|
529 if (ch == '/'
|
|
|
530 && r->proxy
|
|
|
531 && p - r->header_start == 5
|
|
|
532 && ngx_strncmp(r->header_start, "HTTP", 4) == 0)
|
|
|
533 {
|
|
|
534 state = sw_ignore_line;
|
|
|
535 break;
|
|
|
536 }
|
|
|
537
|
|
|
538 return NGX_HTTP_PARSE_INVALID_HEADER;
|
|
|
539
|
|
|
540 /* space* before header value */
|
|
|
541 case sw_space_before_value:
|
|
|
542 switch (ch) {
|
|
|
543 case ' ':
|
|
|
544 break;
|
|
|
545 case CR:
|
|
|
546 r->header_start = r->header_end = p - 1;
|
|
|
547 state = sw_almost_done;
|
|
|
548 break;
|
|
|
549 case LF:
|
|
|
550 r->header_start = r->header_end = p - 1;
|
|
|
551 state = sw_done;
|
|
|
552 break;
|
|
|
553 default:
|
|
|
554 r->header_start = p - 1;
|
|
|
555 state = sw_value;
|
|
|
556 break;
|
|
|
557 }
|
|
|
558 break;
|
|
|
559
|
|
|
560 /* header value */
|
|
|
561 case sw_value:
|
|
|
562 switch (ch) {
|
|
|
563 case ' ':
|
|
|
564 r->header_end = p - 1;
|
|
|
565 state = sw_space_after_value;
|
|
|
566 break;
|
|
|
567 case CR:
|
|
|
568 r->header_end = p - 1;
|
|
|
569 state = sw_almost_done;
|
|
|
570 break;
|
|
|
571 case LF:
|
|
|
572 r->header_end = p - 1;
|
|
|
573 state = sw_done;
|
|
|
574 break;
|
|
|
575 }
|
|
|
576 break;
|
|
|
577
|
|
|
578 /* space* before end of header line */
|
|
|
579 case sw_space_after_value:
|
|
|
580 switch (ch) {
|
|
|
581 case ' ':
|
|
|
582 break;
|
|
|
583 case CR:
|
|
|
584 state = sw_almost_done;
|
|
|
585 break;
|
|
|
586 case LF:
|
|
|
587 state = sw_done;
|
|
|
588 break;
|
|
|
589 default:
|
|
|
590 state = sw_value;
|
|
|
591 break;
|
|
|
592 }
|
|
|
593 break;
|
|
|
594
|
|
|
595 /* ignore header line */
|
|
|
596 case sw_ignore_line:
|
|
|
597 switch (ch) {
|
|
|
598 case LF:
|
|
|
599 state = sw_start;
|
|
|
600 break;
|
|
|
601 default:
|
|
|
602 break;
|
|
|
603 }
|
|
|
604 break;
|
|
|
605
|
|
|
606 /* end of header line */
|
|
|
607 case sw_almost_done:
|
|
|
608 switch (ch) {
|
|
|
609 case LF:
|
|
|
610 state = sw_done;
|
|
|
611 break;
|
|
|
612 default:
|
|
|
613 return NGX_HTTP_PARSE_INVALID_HEADER;
|
|
|
614 }
|
|
|
615 break;
|
|
|
616
|
|
|
617 /* end of header */
|
|
|
618 case sw_header_almost_done:
|
|
|
619 switch (ch) {
|
|
|
620 case LF:
|
|
|
621 state = sw_header_done;
|
|
|
622 break;
|
|
|
623 default:
|
|
|
624 return NGX_HTTP_PARSE_INVALID_HEADER;
|
|
|
625 }
|
|
|
626 break;
|
|
|
627
|
|
|
628 /* suppress warning */
|
|
|
629 case sw_done:
|
|
|
630 case sw_header_done:
|
|
|
631 break;
|
|
|
632 }
|
|
|
633 }
|
|
|
634
|
|
|
635 b->pos = p;
|
|
|
636
|
|
|
637 if (state == sw_done) {
|
|
|
638 r->state = sw_start;
|
|
|
639 return NGX_OK;
|
|
|
640
|
|
|
641 } else if (state == sw_header_done) {
|
|
|
642 r->state = sw_start;
|
|
|
643 return NGX_HTTP_PARSE_HEADER_DONE;
|
|
|
644
|
|
|
645 } else {
|
|
|
646 r->state = state;
|
|
|
647 return NGX_AGAIN;
|
|
|
648 }
|
|
|
649 }
|
|
|
650
|
|
|
651
|
|
|
652 ngx_int_t ngx_http_parse_complex_uri(ngx_http_request_t *r)
|
|
|
653 {
|
|
|
654 u_char c, ch, decoded, *p, *u;
|
|
|
655 enum {
|
|
|
656 sw_usual = 0,
|
|
|
657 sw_slash,
|
|
|
658 sw_dot,
|
|
|
659 sw_dot_dot,
|
|
|
660 #if (WIN32)
|
|
|
661 sw_dot_dot_dot,
|
|
|
662 #endif
|
|
|
663 sw_quoted,
|
|
|
664 sw_quoted_second
|
|
|
665 } state, quoted_state;
|
|
|
666
|
|
|
667 decoded = '\0';
|
|
|
668 quoted_state = sw_usual;
|
|
|
669
|
|
|
670 state = sw_usual;
|
|
|
671 p = r->uri_start;
|
|
|
672 u = r->uri.data;
|
|
|
673 r->uri_ext = NULL;
|
|
|
674
|
|
|
675 ch = *p++;
|
|
|
676
|
|
|
677 while (p < r->uri_start + r->uri.len + 1) {
|
|
|
678
|
|
|
679 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
680 "s:%d in:'%x:%c', out:'%c'", state, ch, ch, *u);
|
|
|
681
|
|
|
682 switch (state) {
|
|
|
683 case sw_usual:
|
|
|
684 switch(ch) {
|
|
|
685 case '/':
|
|
|
686 r->uri_ext = NULL;
|
|
|
687 state = sw_slash;
|
|
|
688 *u++ = ch;
|
|
|
689 break;
|
|
|
690 case '%':
|
|
|
691 quoted_state = state;
|
|
|
692 state = sw_quoted;
|
|
|
693 break;
|
|
|
694 case '.':
|
|
|
695 r->uri_ext = u + 1;
|
|
|
696 default:
|
|
|
697 *u++ = ch;
|
|
|
698 break;
|
|
|
699 }
|
|
|
700 ch = *p++;
|
|
|
701 break;
|
|
|
702
|
|
|
703 case sw_slash:
|
|
|
704 switch(ch) {
|
|
|
705 case '/':
|
|
|
706 break;
|
|
|
707 case '.':
|
|
|
708 state = sw_dot;
|
|
|
709 *u++ = ch;
|
|
|
710 break;
|
|
|
711 case '%':
|
|
|
712 quoted_state = state;
|
|
|
713 state = sw_quoted;
|
|
|
714 break;
|
|
|
715 default:
|
|
|
716 state = sw_usual;
|
|
|
717 *u++ = ch;
|
|
|
718 break;
|
|
|
719 }
|
|
|
720 ch = *p++;
|
|
|
721 break;
|
|
|
722
|
|
|
723 case sw_dot:
|
|
|
724 switch(ch) {
|
|
|
725 case '/':
|
|
|
726 state = sw_slash;
|
|
|
727 u--;
|
|
|
728 break;
|
|
|
729 case '.':
|
|
|
730 state = sw_dot_dot;
|
|
|
731 *u++ = ch;
|
|
|
732 break;
|
|
|
733 case '%':
|
|
|
734 quoted_state = state;
|
|
|
735 state = sw_quoted;
|
|
|
736 break;
|
|
|
737 default:
|
|
|
738 state = sw_usual;
|
|
|
739 *u++ = ch;
|
|
|
740 break;
|
|
|
741 }
|
|
|
742 ch = *p++;
|
|
|
743 break;
|
|
|
744
|
|
|
745 case sw_dot_dot:
|
|
|
746 switch(ch) {
|
|
|
747 case '/':
|
|
|
748 state = sw_slash;
|
|
|
749 u -= 4;
|
|
|
750 if (u < r->uri.data) {
|
|
|
751 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
|
752 }
|
|
|
753 while (*(u - 1) != '/') {
|
|
|
754 u--;
|
|
|
755 }
|
|
|
756 break;
|
|
|
757 case '%':
|
|
|
758 quoted_state = state;
|
|
|
759 state = sw_quoted;
|
|
|
760 break;
|
|
|
761 #if (WIN32)
|
|
|
762 case '.':
|
|
|
763 state = sw_dot_dot_dot;
|
|
|
764 *u++ = ch;
|
|
|
765 break;
|
|
|
766 #endif
|
|
|
767 default:
|
|
|
768 state = sw_usual;
|
|
|
769 *u++ = ch;
|
|
|
770 break;
|
|
|
771 }
|
|
|
772 ch = *p++;
|
|
|
773 break;
|
|
|
774
|
|
|
775 #if (WIN32)
|
|
|
776 case sw_dot_dot_dot:
|
|
|
777 switch(ch) {
|
|
|
778 case '/':
|
|
|
779 state = sw_slash;
|
|
|
780 u -= 5;
|
|
|
781 if (u < r->uri.data) {
|
|
|
782 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
|
783 }
|
|
|
784 while (*u != '/') {
|
|
|
785 u--;
|
|
|
786 }
|
|
|
787 if (u < r->uri.data) {
|
|
|
788 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
|
789 }
|
|
|
790 while (*(u - 1) != '/') {
|
|
|
791 u--;
|
|
|
792 }
|
|
|
793 break;
|
|
|
794 case '%':
|
|
|
795 quoted_state = state;
|
|
|
796 state = sw_quoted;
|
|
|
797 break;
|
|
|
798 default:
|
|
|
799 state = sw_usual;
|
|
|
800 *u++ = ch;
|
|
|
801 break;
|
|
|
802 }
|
|
|
803 ch = *p++;
|
|
|
804 break;
|
|
|
805 #endif
|
|
|
806
|
|
|
807 case sw_quoted:
|
|
|
808 if (ch >= '0' && ch <= '9') {
|
|
|
809 decoded = (u_char) (ch - '0');
|
|
|
810 state = sw_quoted_second;
|
|
|
811 ch = *p++;
|
|
|
812 break;
|
|
|
813 }
|
|
|
814
|
|
|
815 c = (u_char) (ch | 0x20);
|
|
|
816 if (c >= 'a' && c <= 'f') {
|
|
|
817 decoded = (u_char) (c - 'a' + 10);
|
|
|
818 state = sw_quoted_second;
|
|
|
819 ch = *p++;
|
|
|
820 break;
|
|
|
821 }
|
|
|
822
|
|
|
823 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
|
824
|
|
|
825 case sw_quoted_second:
|
|
|
826 if (ch >= '0' && ch <= '9') {
|
|
|
827 ch = (u_char) ((decoded << 4) + ch - '0');
|
|
|
828 if (ch == '%') {
|
|
|
829 state = sw_usual;
|
|
|
830 *u++ = ch;
|
|
|
831 ch = *p++;
|
|
|
832 break;
|
|
|
833 }
|
|
|
834 state = quoted_state;
|
|
|
835 break;
|
|
|
836 }
|
|
|
837
|
|
|
838 c = (u_char) (ch | 0x20);
|
|
|
839 if (c >= 'a' && c <= 'f') {
|
|
|
840 ch = (u_char) ((decoded << 4) + c - 'a' + 10);
|
|
|
841 if (ch == '%') {
|
|
|
842 state = sw_usual;
|
|
|
843 *u++ = ch;
|
|
|
844 ch = *p++;
|
|
|
845 break;
|
|
|
846 }
|
|
|
847 state = quoted_state;
|
|
|
848 break;
|
|
|
849 }
|
|
|
850
|
|
|
851 return NGX_HTTP_PARSE_INVALID_REQUEST;
|
|
|
852 }
|
|
|
853 }
|
|
|
854
|
|
|
855 r->uri.len = u - r->uri.data;
|
|
|
856 r->uri.data[r->uri.len] = '\0';
|
|
|
857
|
|
|
858 if (r->uri_ext) {
|
|
|
859 r->exten.len = u - r->uri_ext;
|
|
|
860
|
|
|
861 if (!(r->exten.data = ngx_palloc(r->pool, r->exten.len + 1))) {
|
|
|
862 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
863 }
|
|
|
864
|
|
|
865 ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1);
|
|
|
866 }
|
|
|
867
|
|
|
868 r->uri_ext = NULL;
|
|
|
869
|
|
|
870 return NGX_OK;
|
|
|
871 }
|
