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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 #include <nginx.h>
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11
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12
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344
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13 static ngx_int_t ngx_http_send_error_page(ngx_http_request_t *r,
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14 ngx_http_err_page_t *err_page);
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15 static ngx_int_t ngx_http_send_special_response(ngx_http_request_t *r,
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16 ngx_http_core_loc_conf_t *clcf, ngx_uint_t err);
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17 static ngx_int_t ngx_http_send_refresh(ngx_http_request_t *r);
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18
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19
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20 static u_char ngx_http_error_full_tail[] =
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342
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21 "<hr><center>" NGINX_VER "</center>" CRLF
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22 "</body>" CRLF
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23 "</html>" CRLF
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24 ;
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25
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26
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344
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27 static u_char ngx_http_error_tail[] =
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342
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28 "<hr><center>nginx</center>" CRLF
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0
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29 "</body>" CRLF
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30 "</html>" CRLF
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31 ;
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32
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33
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546
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34 static u_char ngx_http_msie_padding[] =
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35 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF
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36 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF
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37 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF
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38 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF
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39 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF
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40 "<!-- a padding to disable MSIE and Chrome friendly error page -->" CRLF
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0
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41 ;
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42
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43
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228
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44 static u_char ngx_http_msie_refresh_head[] =
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45 "<html><head><meta http-equiv=\"Refresh\" content=\"0; URL=";
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46
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47
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48 static u_char ngx_http_msie_refresh_tail[] =
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49 "\"></head><body></body></html>" CRLF;
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50
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51
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344
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52 static char ngx_http_error_301_page[] =
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0
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53 "<html>" CRLF
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54 "<head><title>301 Moved Permanently</title></head>" CRLF
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55 "<body bgcolor=\"white\">" CRLF
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56 "<center><h1>301 Moved Permanently</h1></center>" CRLF
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57 ;
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58
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59
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344
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60 static char ngx_http_error_302_page[] =
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0
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61 "<html>" CRLF
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62 "<head><title>302 Found</title></head>" CRLF
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63 "<body bgcolor=\"white\">" CRLF
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64 "<center><h1>302 Found</h1></center>" CRLF
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65 ;
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66
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67
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580
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68 static char ngx_http_error_303_page[] =
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69 "<html>" CRLF
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70 "<head><title>303 See Other</title></head>" CRLF
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71 "<body bgcolor=\"white\">" CRLF
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72 "<center><h1>303 See Other</h1></center>" CRLF
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73 ;
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74
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75
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344
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76 static char ngx_http_error_400_page[] =
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0
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77 "<html>" CRLF
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78 "<head><title>400 Bad Request</title></head>" CRLF
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79 "<body bgcolor=\"white\">" CRLF
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80 "<center><h1>400 Bad Request</h1></center>" CRLF
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81 ;
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82
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83
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344
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84 static char ngx_http_error_401_page[] =
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48
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85 "<html>" CRLF
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52
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86 "<head><title>401 Authorization Required</title></head>" CRLF
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48
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87 "<body bgcolor=\"white\">" CRLF
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52
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88 "<center><h1>401 Authorization Required</h1></center>" CRLF
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48
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89 ;
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90
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91
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344
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92 static char ngx_http_error_402_page[] =
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48
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93 "<html>" CRLF
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94 "<head><title>402 Payment Required</title></head>" CRLF
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95 "<body bgcolor=\"white\">" CRLF
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96 "<center><h1>402 Payment Required</h1></center>" CRLF
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97 ;
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98
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99
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344
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100 static char ngx_http_error_403_page[] =
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101 "<html>" CRLF
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102 "<head><title>403 Forbidden</title></head>" CRLF
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103 "<body bgcolor=\"white\">" CRLF
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104 "<center><h1>403 Forbidden</h1></center>" CRLF
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105 ;
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106
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107
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344
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108 static char ngx_http_error_404_page[] =
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0
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109 "<html>" CRLF
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110 "<head><title>404 Not Found</title></head>" CRLF
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111 "<body bgcolor=\"white\">" CRLF
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112 "<center><h1>404 Not Found</h1></center>" CRLF
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113 ;
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114
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115
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344
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116 static char ngx_http_error_405_page[] =
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0
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117 "<html>" CRLF
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118 "<head><title>405 Not Allowed</title></head>" CRLF
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119 "<body bgcolor=\"white\">" CRLF
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120 "<center><h1>405 Not Allowed</h1></center>" CRLF
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121 ;
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122
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123
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344
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124 static char ngx_http_error_406_page[] =
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48
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125 "<html>" CRLF
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126 "<head><title>406 Not Acceptable</title></head>" CRLF
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127 "<body bgcolor=\"white\">" CRLF
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128 "<center><h1>406 Not Acceptable</h1></center>" CRLF
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129 ;
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130
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131
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344
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132 static char ngx_http_error_408_page[] =
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0
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133 "<html>" CRLF
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134 "<head><title>408 Request Time-out</title></head>" CRLF
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135 "<body bgcolor=\"white\">" CRLF
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136 "<center><h1>408 Request Time-out</h1></center>" CRLF
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137 ;
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138
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139
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344
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140 static char ngx_http_error_409_page[] =
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186
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141 "<html>" CRLF
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142 "<head><title>409 Conflict</title></head>" CRLF
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143 "<body bgcolor=\"white\">" CRLF
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144 "<center><h1>409 Conflict</h1></center>" CRLF
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145 ;
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146
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147
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344
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148 static char ngx_http_error_410_page[] =
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48
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149 "<html>" CRLF
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150 "<head><title>410 Gone</title></head>" CRLF
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151 "<body bgcolor=\"white\">" CRLF
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152 "<center><h1>410 Gone</h1></center>" CRLF
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153 ;
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154
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155
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344
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156 static char ngx_http_error_411_page[] =
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130
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157 "<html>" CRLF
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158 "<head><title>411 Length Required</title></head>" CRLF
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159 "<body bgcolor=\"white\">" CRLF
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160 "<center><h1>411 Length Required</h1></center>" CRLF
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161 ;
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162
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163
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344
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164 static char ngx_http_error_412_page[] =
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276
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165 "<html>" CRLF
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166 "<head><title>412 Precondition Failed</title></head>" CRLF
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167 "<body bgcolor=\"white\">" CRLF
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168 "<center><h1>412 Precondition Failed</h1></center>" CRLF
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169 ;
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170
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171
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344
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172 static char ngx_http_error_413_page[] =
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0
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173 "<html>" CRLF
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174 "<head><title>413 Request Entity Too Large</title></head>" CRLF
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175 "<body bgcolor=\"white\">" CRLF
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176 "<center><h1>413 Request Entity Too Large</h1></center>" CRLF
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177 ;
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178
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179
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344
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180 static char ngx_http_error_414_page[] =
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0
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181 "<html>" CRLF
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182 "<head><title>414 Request-URI Too Large</title></head>" CRLF
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183 "<body bgcolor=\"white\">" CRLF
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184 "<center><h1>414 Request-URI Too Large</h1></center>" CRLF
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185 ;
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186
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187
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344
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188 static char ngx_http_error_415_page[] =
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186
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189 "<html>" CRLF
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190 "<head><title>415 Unsupported Media Type</title></head>" CRLF
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191 "<body bgcolor=\"white\">" CRLF
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192 "<center><h1>415 Unsupported Media Type</h1></center>" CRLF
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193 ;
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194
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195
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344
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196 static char ngx_http_error_416_page[] =
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0
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197 "<html>" CRLF
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198 "<head><title>416 Requested Range Not Satisfiable</title></head>" CRLF
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199 "<body bgcolor=\"white\">" CRLF
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200 "<center><h1>416 Requested Range Not Satisfiable</h1></center>" CRLF
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201 ;
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202
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203
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612
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204 static char ngx_http_error_494_page[] =
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205 "<html>" CRLF
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206 "<head><title>400 Request Header Or Cookie Too Large</title></head>"
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207 CRLF
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208 "<body bgcolor=\"white\">" CRLF
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209 "<center><h1>400 Bad Request</h1></center>" CRLF
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210 "<center>Request Header Or Cookie Too Large</center>" CRLF
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211 ;
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212
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213
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344
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214 static char ngx_http_error_495_page[] =
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196
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215 "<html>" CRLF
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216 "<head><title>400 The SSL certificate error</title></head>"
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217 CRLF
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218 "<body bgcolor=\"white\">" CRLF
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219 "<center><h1>400 Bad Request</h1></center>" CRLF
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220 "<center>The SSL certificate error</center>" CRLF
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221 ;
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222
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223
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344
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224 static char ngx_http_error_496_page[] =
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196
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225 "<html>" CRLF
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226 "<head><title>400 No required SSL certificate was sent</title></head>"
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227 CRLF
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228 "<body bgcolor=\"white\">" CRLF
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229 "<center><h1>400 Bad Request</h1></center>" CRLF
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230 "<center>No required SSL certificate was sent</center>" CRLF
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231 ;
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232
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233
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344
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234 static char ngx_http_error_497_page[] =
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0
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235 "<html>" CRLF
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236 "<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>"
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237 CRLF
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238 "<body bgcolor=\"white\">" CRLF
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239 "<center><h1>400 Bad Request</h1></center>" CRLF
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240 "<center>The plain HTTP request was sent to HTTPS port</center>" CRLF
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241 ;
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242
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243
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344
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244 static char ngx_http_error_500_page[] =
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0
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245 "<html>" CRLF
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246 "<head><title>500 Internal Server Error</title></head>" CRLF
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247 "<body bgcolor=\"white\">" CRLF
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248 "<center><h1>500 Internal Server Error</h1></center>" CRLF
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249 ;
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250
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251
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344
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252 static char ngx_http_error_501_page[] =
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0
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253 "<html>" CRLF
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254 "<head><title>501 Method Not Implemented</title></head>" CRLF
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255 "<body bgcolor=\"white\">" CRLF
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84
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256 "<center><h1>501 Method Not Implemented</h1></center>" CRLF
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0
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257 ;
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258
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259
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344
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260 static char ngx_http_error_502_page[] =
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0
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261 "<html>" CRLF
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262 "<head><title>502 Bad Gateway</title></head>" CRLF
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263 "<body bgcolor=\"white\">" CRLF
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264 "<center><h1>502 Bad Gateway</h1></center>" CRLF
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265 ;
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266
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267
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344
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268 static char ngx_http_error_503_page[] =
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0
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269 "<html>" CRLF
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270 "<head><title>503 Service Temporarily Unavailable</title></head>" CRLF
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271 "<body bgcolor=\"white\">" CRLF
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272 "<center><h1>503 Service Temporarily Unavailable</h1></center>" CRLF
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273 ;
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274
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275
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344
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276 static char ngx_http_error_504_page[] =
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0
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277 "<html>" CRLF
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278 "<head><title>504 Gateway Time-out</title></head>" CRLF
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279 "<body bgcolor=\"white\">" CRLF
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280 "<center><h1>504 Gateway Time-out</h1></center>" CRLF
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281 ;
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282
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283
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344
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284 static char ngx_http_error_507_page[] =
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186
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285 "<html>" CRLF
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286 "<head><title>507 Insufficient Storage</title></head>" CRLF
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287 "<body bgcolor=\"white\">" CRLF
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288 "<center><h1>507 Insufficient Storage</h1></center>" CRLF
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289 ;
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290
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291
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344
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292 static ngx_str_t ngx_http_error_pages[] = {
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48
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293
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344
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294 ngx_null_string, /* 201, 204 */
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60
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295
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478
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296 #define NGX_HTTP_LAST_LEVEL_200 202
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297 #define NGX_HTTP_LEVEL_200 (NGX_HTTP_LAST_LEVEL_200 - 201)
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60
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298
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344
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299 /* ngx_null_string, */ /* 300 */
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300 ngx_string(ngx_http_error_301_page),
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301 ngx_string(ngx_http_error_302_page),
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580
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302 ngx_string(ngx_http_error_303_page),
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0
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303
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478
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304 #define NGX_HTTP_LAST_LEVEL_300 304
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305 #define NGX_HTTP_LEVEL_300 (NGX_HTTP_LAST_LEVEL_300 - 301)
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48
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306
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344
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307 ngx_string(ngx_http_error_400_page),
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308 ngx_string(ngx_http_error_401_page),
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309 ngx_string(ngx_http_error_402_page),
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310 ngx_string(ngx_http_error_403_page),
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311 ngx_string(ngx_http_error_404_page),
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312 ngx_string(ngx_http_error_405_page),
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313 ngx_string(ngx_http_error_406_page),
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314 ngx_null_string, /* 407 */
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315 ngx_string(ngx_http_error_408_page),
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316 ngx_string(ngx_http_error_409_page),
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317 ngx_string(ngx_http_error_410_page),
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318 ngx_string(ngx_http_error_411_page),
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319 ngx_string(ngx_http_error_412_page),
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320 ngx_string(ngx_http_error_413_page),
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321 ngx_string(ngx_http_error_414_page),
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322 ngx_string(ngx_http_error_415_page),
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323 ngx_string(ngx_http_error_416_page),
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0
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324
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478
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325 #define NGX_HTTP_LAST_LEVEL_400 417
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326 #define NGX_HTTP_LEVEL_400 (NGX_HTTP_LAST_LEVEL_400 - 400)
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48
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327
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612
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328 ngx_string(ngx_http_error_494_page), /* 494, request header too large */
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344
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329 ngx_string(ngx_http_error_495_page), /* 495, https certificate error */
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330 ngx_string(ngx_http_error_496_page), /* 496, https no certificate */
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331 ngx_string(ngx_http_error_497_page), /* 497, http to https */
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354
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332 ngx_string(ngx_http_error_404_page), /* 498, canceled */
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344
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333 ngx_null_string, /* 499, client has closed connection */
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0
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334
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344
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335 ngx_string(ngx_http_error_500_page),
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336 ngx_string(ngx_http_error_501_page),
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337 ngx_string(ngx_http_error_502_page),
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338 ngx_string(ngx_http_error_503_page),
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339 ngx_string(ngx_http_error_504_page),
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340 ngx_null_string, /* 505 */
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341 ngx_null_string, /* 506 */
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342 ngx_string(ngx_http_error_507_page)
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478
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343
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344 #define NGX_HTTP_LAST_LEVEL_500 508
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345
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0
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346 };
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347
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348
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236
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349 static ngx_str_t ngx_http_get_name = { 3, (u_char *) "GET " };
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350
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351
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36
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352 ngx_int_t
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353 ngx_http_special_response_handler(ngx_http_request_t *r, ngx_int_t error)
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0
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354 {
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344
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355 ngx_uint_t i, err;
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0
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356 ngx_http_err_page_t *err_page;
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357 ngx_http_core_loc_conf_t *clcf;
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358
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380
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359 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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360 "http special response: %d, \"%V?%V\"",
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361 error, &r->uri, &r->args);
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76
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362
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226
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363 r->err_status = error;
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0
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364
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378
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365 if (r->keepalive) {
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0
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366 switch (error) {
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367 case NGX_HTTP_BAD_REQUEST:
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368 case NGX_HTTP_REQUEST_ENTITY_TOO_LARGE:
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369 case NGX_HTTP_REQUEST_URI_TOO_LARGE:
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370 case NGX_HTTP_TO_HTTPS:
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196
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371 case NGX_HTTPS_CERT_ERROR:
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372 case NGX_HTTPS_NO_CERT:
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0
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373 case NGX_HTTP_INTERNAL_SERVER_ERROR:
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374 r->keepalive = 0;
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375 }
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|
376 }
|
|
|
377
|
|
|
378 if (r->lingering_close == 1) {
|
|
|
379 switch (error) {
|
|
|
380 case NGX_HTTP_BAD_REQUEST:
|
|
|
381 case NGX_HTTP_TO_HTTPS:
|
|
196
|
382 case NGX_HTTPS_CERT_ERROR:
|
|
|
383 case NGX_HTTPS_NO_CERT:
|
|
0
|
384 r->lingering_close = 0;
|
|
|
385 }
|
|
|
386 }
|
|
|
387
|
|
224
|
388 r->headers_out.content_type.len = 0;
|
|
|
389
|
|
0
|
390 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
391
|
|
396
|
392 if (!r->error_page && clcf->error_pages && r->uri_changes != 0) {
|
|
228
|
393
|
|
|
394 if (clcf->recursive_error_pages == 0) {
|
|
|
395 r->error_page = 1;
|
|
|
396 }
|
|
26
|
397
|
|
0
|
398 err_page = clcf->error_pages->elts;
|
|
26
|
399
|
|
0
|
400 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
|
|
401 if (err_page[i].status == error) {
|
|
344
|
402 return ngx_http_send_error_page(r, &err_page[i]);
|
|
0
|
403 }
|
|
|
404 }
|
|
|
405 }
|
|
|
406
|
|
438
|
407 r->expect_tested = 1;
|
|
|
408
|
|
400
|
409 if (ngx_http_discard_request_body(r) != NGX_OK) {
|
|
|
410 error = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
411 }
|
|
|
412
|
|
344
|
413 if (clcf->msie_refresh
|
|
|
414 && r->headers_in.msie
|
|
|
415 && (error == NGX_HTTP_MOVED_PERMANENTLY
|
|
|
416 || error == NGX_HTTP_MOVED_TEMPORARILY))
|
|
|
417 {
|
|
|
418 return ngx_http_send_refresh(r);
|
|
|
419 }
|
|
|
420
|
|
182
|
421 if (error == NGX_HTTP_CREATED) {
|
|
|
422 /* 201 */
|
|
|
423 err = 0;
|
|
|
424
|
|
|
425 } else if (error == NGX_HTTP_NO_CONTENT) {
|
|
60
|
426 /* 204 */
|
|
|
427 err = 0;
|
|
|
428
|
|
478
|
429 } else if (error >= NGX_HTTP_MOVED_PERMANENTLY
|
|
|
430 && error < NGX_HTTP_LAST_LEVEL_300)
|
|
|
431 {
|
|
0
|
432 /* 3XX */
|
|
62
|
433 err = error - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_LEVEL_200;
|
|
0
|
434
|
|
478
|
435 } else if (error >= NGX_HTTP_BAD_REQUEST
|
|
|
436 && error < NGX_HTTP_LAST_LEVEL_400)
|
|
|
437 {
|
|
0
|
438 /* 4XX */
|
|
60
|
439 err = error - NGX_HTTP_BAD_REQUEST + NGX_HTTP_LEVEL_200
|
|
|
440 + NGX_HTTP_LEVEL_300;
|
|
0
|
441
|
|
612
|
442 } else if (error >= NGX_HTTP_NGINX_CODES
|
|
478
|
443 && error < NGX_HTTP_LAST_LEVEL_500)
|
|
|
444 {
|
|
0
|
445 /* 49X, 5XX */
|
|
612
|
446 err = error - NGX_HTTP_NGINX_CODES + NGX_HTTP_LEVEL_200
|
|
|
447 + NGX_HTTP_LEVEL_300
|
|
|
448 + NGX_HTTP_LEVEL_400;
|
|
0
|
449 switch (error) {
|
|
|
450 case NGX_HTTP_TO_HTTPS:
|
|
196
|
451 case NGX_HTTPS_CERT_ERROR:
|
|
|
452 case NGX_HTTPS_NO_CERT:
|
|
612
|
453 case NGX_HTTP_REQUEST_HEADER_TOO_LARGE:
|
|
228
|
454 r->err_status = NGX_HTTP_BAD_REQUEST;
|
|
0
|
455 break;
|
|
|
456 }
|
|
478
|
457
|
|
|
458 } else {
|
|
|
459 /* unknown code, zero body */
|
|
|
460 err = 0;
|
|
0
|
461 }
|
|
|
462
|
|
344
|
463 return ngx_http_send_special_response(r, clcf, err);
|
|
|
464 }
|
|
|
465
|
|
|
466
|
|
484
|
467 ngx_int_t
|
|
488
|
468 ngx_http_filter_finalize_request(ngx_http_request_t *r, ngx_module_t *m,
|
|
|
469 ngx_int_t error)
|
|
484
|
470 {
|
|
488
|
471 void *ctx;
|
|
|
472 ngx_int_t rc;
|
|
484
|
473
|
|
|
474 ngx_http_clean_header(r);
|
|
|
475
|
|
488
|
476 ctx = NULL;
|
|
|
477
|
|
|
478 if (m) {
|
|
|
479 ctx = r->ctx[m->ctx_index];
|
|
|
480 }
|
|
|
481
|
|
484
|
482 /* clear the modules contexts */
|
|
|
483 ngx_memzero(r->ctx, sizeof(void *) * ngx_http_max_module);
|
|
|
484
|
|
488
|
485 if (m) {
|
|
|
486 r->ctx[m->ctx_index] = ctx;
|
|
|
487 }
|
|
|
488
|
|
|
489 r->filter_finalize = 1;
|
|
|
490
|
|
484
|
491 rc = ngx_http_special_response_handler(r, error);
|
|
|
492
|
|
|
493 /* NGX_ERROR resets any pending data */
|
|
|
494
|
|
488
|
495 switch (rc) {
|
|
|
496
|
|
|
497 case NGX_OK:
|
|
|
498 case NGX_DONE:
|
|
|
499 return NGX_ERROR;
|
|
|
500
|
|
|
501 default:
|
|
|
502 return rc;
|
|
|
503 }
|
|
484
|
504 }
|
|
|
505
|
|
|
506
|
|
|
507 void
|
|
|
508 ngx_http_clean_header(ngx_http_request_t *r)
|
|
|
509 {
|
|
|
510 ngx_memzero(&r->headers_out.status,
|
|
|
511 sizeof(ngx_http_headers_out_t)
|
|
|
512 - offsetof(ngx_http_headers_out_t, status));
|
|
|
513
|
|
|
514 r->headers_out.headers.part.nelts = 0;
|
|
|
515 r->headers_out.headers.part.next = NULL;
|
|
|
516 r->headers_out.headers.last = &r->headers_out.headers.part;
|
|
|
517
|
|
|
518 r->headers_out.content_length_n = -1;
|
|
|
519 r->headers_out.last_modified_time = -1;
|
|
|
520 }
|
|
|
521
|
|
|
522
|
|
344
|
523 static ngx_int_t
|
|
|
524 ngx_http_send_error_page(ngx_http_request_t *r, ngx_http_err_page_t *err_page)
|
|
|
525 {
|
|
438
|
526 ngx_int_t overwrite;
|
|
464
|
527 ngx_str_t uri, args;
|
|
344
|
528 ngx_table_elt_t *location;
|
|
|
529 ngx_http_core_loc_conf_t *clcf;
|
|
|
530
|
|
438
|
531 overwrite = err_page->overwrite;
|
|
|
532
|
|
|
533 if (overwrite && overwrite != NGX_HTTP_OK) {
|
|
|
534 r->expect_tested = 1;
|
|
|
535 }
|
|
|
536
|
|
602
|
537 if (overwrite >= 0) {
|
|
|
538 r->err_status = overwrite;
|
|
|
539 }
|
|
344
|
540
|
|
464
|
541 if (ngx_http_complex_value(r, &err_page->value, &uri) != NGX_OK) {
|
|
|
542 return NGX_ERROR;
|
|
|
543 }
|
|
344
|
544
|
|
478
|
545 if (uri.data[0] == '/') {
|
|
344
|
546
|
|
478
|
547 if (err_page->value.lengths) {
|
|
|
548 ngx_http_split_args(r, &uri, &args);
|
|
344
|
549
|
|
478
|
550 } else {
|
|
|
551 args = err_page->args;
|
|
|
552 }
|
|
366
|
553
|
|
400
|
554 if (r->method != NGX_HTTP_HEAD) {
|
|
|
555 r->method = NGX_HTTP_GET;
|
|
|
556 r->method_name = ngx_http_get_name;
|
|
|
557 }
|
|
366
|
558
|
|
464
|
559 return ngx_http_internal_redirect(r, &uri, &args);
|
|
344
|
560 }
|
|
|
561
|
|
464
|
562 if (uri.data[0] == '@') {
|
|
|
563 return ngx_http_named_location(r, &uri);
|
|
344
|
564 }
|
|
|
565
|
|
|
566 location = ngx_list_push(&r->headers_out.headers);
|
|
|
567
|
|
|
568 if (location == NULL) {
|
|
|
569 return NGX_ERROR;
|
|
|
570 }
|
|
|
571
|
|
614
|
572 if (overwrite >= NGX_HTTP_MOVED_PERMANENTLY
|
|
|
573 && overwrite <= NGX_HTTP_SEE_OTHER)
|
|
|
574 {
|
|
|
575 r->err_status = overwrite;
|
|
|
576
|
|
|
577 } else {
|
|
|
578 r->err_status = NGX_HTTP_MOVED_TEMPORARILY;
|
|
|
579 }
|
|
344
|
580
|
|
|
581 location->hash = 1;
|
|
570
|
582 ngx_str_set(&location->key, "Location");
|
|
464
|
583 location->value = uri;
|
|
344
|
584
|
|
|
585 r->headers_out.location = location;
|
|
|
586
|
|
|
587 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
588
|
|
|
589 if (clcf->msie_refresh && r->headers_in.msie) {
|
|
|
590 return ngx_http_send_refresh(r);
|
|
|
591 }
|
|
|
592
|
|
602
|
593 return ngx_http_send_special_response(r, clcf, r->err_status
|
|
344
|
594 - NGX_HTTP_MOVED_PERMANENTLY
|
|
|
595 + NGX_HTTP_LEVEL_200);
|
|
|
596 }
|
|
|
597
|
|
|
598
|
|
|
599 static ngx_int_t
|
|
|
600 ngx_http_send_special_response(ngx_http_request_t *r,
|
|
|
601 ngx_http_core_loc_conf_t *clcf, ngx_uint_t err)
|
|
|
602 {
|
|
|
603 u_char *tail;
|
|
|
604 size_t len;
|
|
|
605 ngx_int_t rc;
|
|
|
606 ngx_buf_t *b;
|
|
|
607 ngx_uint_t msie_padding;
|
|
|
608 ngx_chain_t out[3];
|
|
|
609
|
|
|
610 if (clcf->server_tokens) {
|
|
|
611 len = sizeof(ngx_http_error_full_tail) - 1;
|
|
|
612 tail = ngx_http_error_full_tail;
|
|
|
613
|
|
|
614 } else {
|
|
|
615 len = sizeof(ngx_http_error_tail) - 1;
|
|
|
616 tail = ngx_http_error_tail;
|
|
|
617 }
|
|
|
618
|
|
0
|
619 msie_padding = 0;
|
|
|
620
|
|
582
|
621 if (ngx_http_error_pages[err].len) {
|
|
|
622 r->headers_out.content_length_n = ngx_http_error_pages[err].len + len;
|
|
|
623 if (clcf->msie_padding
|
|
|
624 && (r->headers_in.msie || r->headers_in.chrome)
|
|
|
625 && r->http_version >= NGX_HTTP_VERSION_10
|
|
|
626 && err >= NGX_HTTP_LEVEL_300)
|
|
|
627 {
|
|
|
628 r->headers_out.content_length_n +=
|
|
|
629 sizeof(ngx_http_msie_padding) - 1;
|
|
|
630 msie_padding = 1;
|
|
0
|
631 }
|
|
|
632
|
|
582
|
633 r->headers_out.content_type_len = sizeof("text/html") - 1;
|
|
|
634 ngx_str_set(&r->headers_out.content_type, "text/html");
|
|
|
635 r->headers_out.content_type_lowcase = NULL;
|
|
|
636
|
|
0
|
637 } else {
|
|
642
|
638 r->headers_out.content_length_n = 0;
|
|
0
|
639 }
|
|
|
640
|
|
|
641 if (r->headers_out.content_length) {
|
|
58
|
642 r->headers_out.content_length->hash = 0;
|
|
0
|
643 r->headers_out.content_length = NULL;
|
|
|
644 }
|
|
|
645
|
|
344
|
646 ngx_http_clear_accept_ranges(r);
|
|
|
647 ngx_http_clear_last_modified(r);
|
|
|
648
|
|
|
649 rc = ngx_http_send_header(r);
|
|
|
650
|
|
|
651 if (rc == NGX_ERROR || r->header_only) {
|
|
|
652 return rc;
|
|
|
653 }
|
|
|
654
|
|
|
655 if (ngx_http_error_pages[err].len == 0) {
|
|
642
|
656 return ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
344
|
657 }
|
|
|
658
|
|
|
659 b = ngx_calloc_buf(r->pool);
|
|
|
660 if (b == NULL) {
|
|
|
661 return NGX_ERROR;
|
|
|
662 }
|
|
|
663
|
|
|
664 b->memory = 1;
|
|
|
665 b->pos = ngx_http_error_pages[err].data;
|
|
|
666 b->last = ngx_http_error_pages[err].data + ngx_http_error_pages[err].len;
|
|
320
|
667
|
|
344
|
668 out[0].buf = b;
|
|
|
669 out[0].next = &out[1];
|
|
|
670
|
|
|
671 b = ngx_calloc_buf(r->pool);
|
|
|
672 if (b == NULL) {
|
|
|
673 return NGX_ERROR;
|
|
|
674 }
|
|
|
675
|
|
|
676 b->memory = 1;
|
|
|
677
|
|
|
678 b->pos = tail;
|
|
|
679 b->last = tail + len;
|
|
320
|
680
|
|
344
|
681 out[1].buf = b;
|
|
378
|
682 out[1].next = NULL;
|
|
344
|
683
|
|
|
684 if (msie_padding) {
|
|
|
685 b = ngx_calloc_buf(r->pool);
|
|
|
686 if (b == NULL) {
|
|
|
687 return NGX_ERROR;
|
|
|
688 }
|
|
|
689
|
|
|
690 b->memory = 1;
|
|
546
|
691 b->pos = ngx_http_msie_padding;
|
|
|
692 b->last = ngx_http_msie_padding + sizeof(ngx_http_msie_padding) - 1;
|
|
320
|
693
|
|
344
|
694 out[1].next = &out[2];
|
|
|
695 out[2].buf = b;
|
|
378
|
696 out[2].next = NULL;
|
|
344
|
697 }
|
|
|
698
|
|
|
699 if (r == r->main) {
|
|
|
700 b->last_buf = 1;
|
|
|
701 }
|
|
|
702
|
|
|
703 b->last_in_chain = 1;
|
|
|
704
|
|
|
705 return ngx_http_output_filter(r, &out[0]);
|
|
|
706 }
|
|
|
707
|
|
228
|
708
|
|
344
|
709 static ngx_int_t
|
|
|
710 ngx_http_send_refresh(ngx_http_request_t *r)
|
|
|
711 {
|
|
|
712 u_char *p, *location;
|
|
|
713 size_t len, size;
|
|
|
714 uintptr_t escape;
|
|
|
715 ngx_int_t rc;
|
|
|
716 ngx_buf_t *b;
|
|
|
717 ngx_chain_t out;
|
|
|
718
|
|
|
719 len = r->headers_out.location->value.len;
|
|
|
720 location = r->headers_out.location->value.data;
|
|
|
721
|
|
|
722 escape = 2 * ngx_escape_uri(NULL, location, len, NGX_ESCAPE_REFRESH);
|
|
320
|
723
|
|
344
|
724 size = sizeof(ngx_http_msie_refresh_head) - 1
|
|
|
725 + escape + len
|
|
|
726 + sizeof(ngx_http_msie_refresh_tail) - 1;
|
|
|
727
|
|
|
728 r->err_status = NGX_HTTP_OK;
|
|
|
729
|
|
|
730 r->headers_out.content_type_len = sizeof("text/html") - 1;
|
|
570
|
731 ngx_str_set(&r->headers_out.content_type, "text/html");
|
|
494
|
732 r->headers_out.content_type_lowcase = NULL;
|
|
344
|
733
|
|
|
734 r->headers_out.location->hash = 0;
|
|
|
735 r->headers_out.location = NULL;
|
|
|
736
|
|
|
737 r->headers_out.content_length_n = size;
|
|
|
738
|
|
|
739 if (r->headers_out.content_length) {
|
|
|
740 r->headers_out.content_length->hash = 0;
|
|
|
741 r->headers_out.content_length = NULL;
|
|
228
|
742 }
|
|
|
743
|
|
126
|
744 ngx_http_clear_accept_ranges(r);
|
|
|
745 ngx_http_clear_last_modified(r);
|
|
|
746
|
|
0
|
747 rc = ngx_http_send_header(r);
|
|
|
748
|
|
|
749 if (rc == NGX_ERROR || r->header_only) {
|
|
|
750 return rc;
|
|
|
751 }
|
|
|
752
|
|
344
|
753 b = ngx_create_temp_buf(r->pool, size);
|
|
|
754 if (b == NULL) {
|
|
|
755 return NGX_ERROR;
|
|
|
756 }
|
|
342
|
757
|
|
344
|
758 p = ngx_cpymem(b->pos, ngx_http_msie_refresh_head,
|
|
|
759 sizeof(ngx_http_msie_refresh_head) - 1);
|
|
228
|
760
|
|
344
|
761 if (escape == 0) {
|
|
|
762 p = ngx_cpymem(p, location, len);
|
|
228
|
763
|
|
|
764 } else {
|
|
344
|
765 p = (u_char *) ngx_escape_uri(p, location, len, NGX_ESCAPE_REFRESH);
|
|
0
|
766 }
|
|
|
767
|
|
344
|
768 b->last = ngx_cpymem(p, ngx_http_msie_refresh_tail,
|
|
|
769 sizeof(ngx_http_msie_refresh_tail) - 1);
|
|
58
|
770
|
|
344
|
771 b->last_buf = 1;
|
|
58
|
772 b->last_in_chain = 1;
|
|
0
|
773
|
|
344
|
774 out.buf = b;
|
|
|
775 out.next = NULL;
|
|
50
|
776
|
|
344
|
777 return ngx_http_output_filter(r, &out);
|
|
0
|
778 }
|
