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50
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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50
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11 #include <nginx.h>
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12
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13
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230
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14 static ngx_int_t ngx_http_header_filter_init(ngx_conf_t *cf);
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50
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15 static ngx_int_t ngx_http_header_filter(ngx_http_request_t *r);
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16
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17
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18 static ngx_http_module_t ngx_http_header_filter_module_ctx = {
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58
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19 NULL, /* preconfiguration */
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230
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20 ngx_http_header_filter_init, /* postconfiguration */
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50
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21
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22 NULL, /* create main configuration */
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23 NULL, /* init main configuration */
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24
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25 NULL, /* create server configuration */
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26 NULL, /* merge server configuration */
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27
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28 NULL, /* create location configuration */
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29 NULL, /* merge location configuration */
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30 };
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31
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32
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33 ngx_module_t ngx_http_header_filter_module = {
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58
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34 NGX_MODULE_V1,
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50
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35 &ngx_http_header_filter_module_ctx, /* module context */
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36 NULL, /* module directives */
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37 NGX_HTTP_MODULE, /* module type */
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90
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38 NULL, /* init master */
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230
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39 NULL, /* init module */
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90
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40 NULL, /* init process */
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41 NULL, /* init thread */
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42 NULL, /* exit thread */
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43 NULL, /* exit process */
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44 NULL, /* exit master */
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45 NGX_MODULE_V1_PADDING
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50
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46 };
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47
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48
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342
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49 static char ngx_http_server_string[] = "Server: nginx" CRLF;
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50 static char ngx_http_server_full_string[] = "Server: " NGINX_VER CRLF;
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50
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51
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52
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58
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53 static ngx_str_t ngx_http_status_lines[] = {
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50
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54
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55 ngx_string("200 OK"),
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182
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56 ngx_string("201 Created"),
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578
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57 ngx_string("202 Accepted"),
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50
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58 ngx_null_string, /* "203 Non-Authoritative Information" */
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60
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59 ngx_string("204 No Content"),
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50
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60 ngx_null_string, /* "205 Reset Content" */
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61 ngx_string("206 Partial Content"),
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62
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63 /* ngx_null_string, */ /* "207 Multi-Status" */
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64
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654
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65 #define NGX_HTTP_LAST_2XX 207
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66 #define NGX_HTTP_OFF_3XX (NGX_HTTP_LAST_2XX - 200)
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50
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67
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68 /* ngx_null_string, */ /* "300 Multiple Choices" */
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69
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70 ngx_string("301 Moved Permanently"),
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71 ngx_string("302 Moved Temporarily"),
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580
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72 ngx_string("303 See Other"),
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50
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73 ngx_string("304 Not Modified"),
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664
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74 ngx_null_string, /* "305 Use Proxy" */
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75 ngx_null_string, /* "306 unused" */
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76 ngx_string("307 Temporary Redirect"),
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77
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664
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78 #define NGX_HTTP_LAST_3XX 308
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654
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79 #define NGX_HTTP_OFF_4XX (NGX_HTTP_LAST_3XX - 301 + NGX_HTTP_OFF_3XX)
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80
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81 ngx_string("400 Bad Request"),
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82 ngx_string("401 Unauthorized"),
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83 ngx_string("402 Payment Required"),
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84 ngx_string("403 Forbidden"),
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85 ngx_string("404 Not Found"),
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86 ngx_string("405 Not Allowed"),
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87 ngx_string("406 Not Acceptable"),
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88 ngx_null_string, /* "407 Proxy Authentication Required" */
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89 ngx_string("408 Request Time-out"),
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212
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90 ngx_string("409 Conflict"),
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91 ngx_string("410 Gone"),
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92 ngx_string("411 Length Required"),
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276
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93 ngx_string("412 Precondition Failed"),
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50
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94 ngx_string("413 Request Entity Too Large"),
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95 ngx_null_string, /* "414 Request-URI Too Large", but we never send it
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96 * because we treat such requests as the HTTP/0.9
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97 * requests and send only a body without a header
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98 */
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186
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99 ngx_string("415 Unsupported Media Type"),
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50
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100 ngx_string("416 Requested Range Not Satisfiable"),
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101
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102 /* ngx_null_string, */ /* "417 Expectation Failed" */
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103 /* ngx_null_string, */ /* "418 unused" */
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104 /* ngx_null_string, */ /* "419 unused" */
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105 /* ngx_null_string, */ /* "420 unused" */
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106 /* ngx_null_string, */ /* "421 unused" */
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107 /* ngx_null_string, */ /* "422 Unprocessable Entity" */
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108 /* ngx_null_string, */ /* "423 Locked" */
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109 /* ngx_null_string, */ /* "424 Failed Dependency" */
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110
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654
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111 #define NGX_HTTP_LAST_4XX 417
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112 #define NGX_HTTP_OFF_5XX (NGX_HTTP_LAST_4XX - 400 + NGX_HTTP_OFF_4XX)
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50
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113
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114 ngx_string("500 Internal Server Error"),
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115 ngx_string("501 Method Not Implemented"),
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116 ngx_string("502 Bad Gateway"),
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117 ngx_string("503 Service Temporarily Unavailable"),
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186
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118 ngx_string("504 Gateway Time-out"),
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50
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119
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186
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120 ngx_null_string, /* "505 HTTP Version Not Supported" */
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121 ngx_null_string, /* "506 Variant Also Negotiates" */
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122 ngx_string("507 Insufficient Storage"),
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123 /* ngx_null_string, */ /* "508 unused" */
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124 /* ngx_null_string, */ /* "509 unused" */
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125 /* ngx_null_string, */ /* "510 Not Extended" */
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478
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126
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654
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127 #define NGX_HTTP_LAST_5XX 508
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478
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128
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129 };
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130
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131
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118
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132 ngx_http_header_out_t ngx_http_headers_out[] = {
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133 { ngx_string("Server"), offsetof(ngx_http_headers_out_t, server) },
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134 { ngx_string("Date"), offsetof(ngx_http_headers_out_t, date) },
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135 { ngx_string("Content-Length"),
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136 offsetof(ngx_http_headers_out_t, content_length) },
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137 { ngx_string("Content-Encoding"),
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138 offsetof(ngx_http_headers_out_t, content_encoding) },
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139 { ngx_string("Location"), offsetof(ngx_http_headers_out_t, location) },
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140 { ngx_string("Last-Modified"),
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141 offsetof(ngx_http_headers_out_t, last_modified) },
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142 { ngx_string("Accept-Ranges"),
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143 offsetof(ngx_http_headers_out_t, accept_ranges) },
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144 { ngx_string("Expires"), offsetof(ngx_http_headers_out_t, expires) },
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145 { ngx_string("Cache-Control"),
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146 offsetof(ngx_http_headers_out_t, cache_control) },
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147 { ngx_string("ETag"), offsetof(ngx_http_headers_out_t, etag) },
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148
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149 { ngx_null_string, 0 }
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150 };
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151
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152
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153 static ngx_int_t
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154 ngx_http_header_filter(ngx_http_request_t *r)
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155 {
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156 u_char *p;
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157 size_t len;
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478
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158 ngx_str_t host, *status_line;
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230
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159 ngx_buf_t *b;
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454
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160 ngx_uint_t status, i, port;
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50
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161 ngx_chain_t out;
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162 ngx_list_part_t *part;
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163 ngx_table_elt_t *header;
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492
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164 ngx_connection_t *c;
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50
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165 ngx_http_core_loc_conf_t *clcf;
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362
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166 ngx_http_core_srv_conf_t *cscf;
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454
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167 struct sockaddr_in *sin;
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168 #if (NGX_HAVE_INET6)
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169 struct sockaddr_in6 *sin6;
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170 #endif
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448
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171 u_char addr[NGX_SOCKADDR_STRLEN];
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50
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172
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582
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173 if (r->header_sent) {
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174 return NGX_OK;
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175 }
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176
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216
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177 r->header_sent = 1;
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178
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146
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179 if (r != r->main) {
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180 return NGX_OK;
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181 }
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182
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183 if (r->http_version < NGX_HTTP_VERSION_10) {
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184 return NGX_OK;
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185 }
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186
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187 if (r->method == NGX_HTTP_HEAD) {
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188 r->header_only = 1;
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189 }
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190
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191 if (r->headers_out.last_modified_time != -1) {
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192 if (r->headers_out.status != NGX_HTTP_OK
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60
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193 && r->headers_out.status != NGX_HTTP_PARTIAL_CONTENT
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194 && r->headers_out.status != NGX_HTTP_NOT_MODIFIED)
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195 {
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196 r->headers_out.last_modified_time = -1;
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197 r->headers_out.last_modified = NULL;
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198 }
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199 }
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200
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201 len = sizeof("HTTP/1.x ") - 1 + sizeof(CRLF) - 1
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202 /* the end of the header */
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203 + sizeof(CRLF) - 1;
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204
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205 /* status line */
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206
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207 if (r->headers_out.status_line.len) {
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208 len += r->headers_out.status_line.len;
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478
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209 status_line = &r->headers_out.status_line;
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50
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210 #if (NGX_SUPPRESS_WARN)
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478
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211 status = 0;
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50
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212 #endif
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213
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214 } else {
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215
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478
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216 status = r->headers_out.status;
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217
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218 if (status >= NGX_HTTP_OK
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654
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219 && status < NGX_HTTP_LAST_2XX)
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478
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220 {
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50
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221 /* 2XX */
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222
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478
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223 if (status == NGX_HTTP_NO_CONTENT) {
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60
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224 r->header_only = 1;
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570
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225 ngx_str_null(&r->headers_out.content_type);
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60
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226 r->headers_out.last_modified_time = -1;
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227 r->headers_out.last_modified = NULL;
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228 r->headers_out.content_length = NULL;
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229 r->headers_out.content_length_n = -1;
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230 }
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231
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478
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232 status -= NGX_HTTP_OK;
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233 status_line = &ngx_http_status_lines[status];
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234 len += ngx_http_status_lines[status].len;
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235
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236 } else if (status >= NGX_HTTP_MOVED_PERMANENTLY
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654
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237 && status < NGX_HTTP_LAST_3XX)
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478
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238 {
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50
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239 /* 3XX */
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240
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478
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241 if (status == NGX_HTTP_NOT_MODIFIED) {
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242 r->header_only = 1;
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243 }
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244
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654
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245 status = status - NGX_HTTP_MOVED_PERMANENTLY + NGX_HTTP_OFF_3XX;
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478
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246 status_line = &ngx_http_status_lines[status];
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247 len += ngx_http_status_lines[status].len;
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248
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249 } else if (status >= NGX_HTTP_BAD_REQUEST
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654
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250 && status < NGX_HTTP_LAST_4XX)
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478
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251 {
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252 /* 4XX */
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478
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253 status = status - NGX_HTTP_BAD_REQUEST
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654
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254 + NGX_HTTP_OFF_4XX;
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478
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255
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256 status_line = &ngx_http_status_lines[status];
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257 len += ngx_http_status_lines[status].len;
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258
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259 } else if (status >= NGX_HTTP_INTERNAL_SERVER_ERROR
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654
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260 && status < NGX_HTTP_LAST_5XX)
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478
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261 {
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262 /* 5XX */
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263 status = status - NGX_HTTP_INTERNAL_SERVER_ERROR
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654
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264 + NGX_HTTP_OFF_5XX;
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478
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265
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266 status_line = &ngx_http_status_lines[status];
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267 len += ngx_http_status_lines[status].len;
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50
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268
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269 } else {
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478
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270 len += NGX_INT_T_LEN;
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271 status_line = NULL;
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50
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272 }
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273 }
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274
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342
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275 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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276
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58
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277 if (r->headers_out.server == NULL) {
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342
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278 len += clcf->server_tokens ? sizeof(ngx_http_server_full_string) - 1:
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279 sizeof(ngx_http_server_string) - 1;
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50
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280 }
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281
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58
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282 if (r->headers_out.date == NULL) {
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283 len += sizeof("Date: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1;
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284 }
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285
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58
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286 if (r->headers_out.content_type.len) {
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287 len += sizeof("Content-Type: ") - 1
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58
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288 + r->headers_out.content_type.len + 2;
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50
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289
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206
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290 if (r->headers_out.content_type_len == r->headers_out.content_type.len
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291 && r->headers_out.charset.len)
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292 {
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50
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293 len += sizeof("; charset=") - 1 + r->headers_out.charset.len;
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294 }
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295 }
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296
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58
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297 if (r->headers_out.content_length == NULL
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298 && r->headers_out.content_length_n >= 0)
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299 {
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300 len += sizeof("Content-Length: ") - 1 + NGX_OFF_T_LEN + 2;
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301 }
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302
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303 if (r->headers_out.last_modified == NULL
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304 && r->headers_out.last_modified_time != -1)
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305 {
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306 len += sizeof("Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT" CRLF) - 1;
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307 }
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308
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492
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309 c = r->connection;
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310
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50
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311 if (r->headers_out.location
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312 && r->headers_out.location->value.len
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313 && r->headers_out.location->value.data[0] == '/')
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314 {
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58
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315 r->headers_out.location->hash = 0;
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316
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362
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317 if (clcf->server_name_in_redirect) {
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318 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
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319 host = cscf->server_name;
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320
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376
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321 } else if (r->headers_in.server.len) {
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322 host = r->headers_in.server;
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362
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323
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324 } else {
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448
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325 host.len = NGX_SOCKADDR_STRLEN;
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362
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326 host.data = addr;
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327
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492
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328 if (ngx_connection_local_sockaddr(c, &host, 0) != NGX_OK) {
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362
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329 return NGX_ERROR;
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330 }
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331 }
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332
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492
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333 switch (c->local_sockaddr->sa_family) {
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66
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334
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454
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335 #if (NGX_HAVE_INET6)
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336 case AF_INET6:
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492
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337 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
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454
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338 port = ntohs(sin6->sin6_port);
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339 break;
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340 #endif
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566
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341 #if (NGX_HAVE_UNIX_DOMAIN)
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342 case AF_UNIX:
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343 port = 0;
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344 break;
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345 #endif
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454
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346 default: /* AF_INET */
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492
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347 sin = (struct sockaddr_in *) c->local_sockaddr;
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454
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348 port = ntohs(sin->sin_port);
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349 break;
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350 }
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50
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351
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454
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352 len += sizeof("Location: https://") - 1
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353 + host.len
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354 + r->headers_out.location->value.len + 2;
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355
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356 if (clcf->port_in_redirect) {
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357
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358 #if (NGX_HTTP_SSL)
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492
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359 if (c->ssl)
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456
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360 port = (port == 443) ? 0 : port;
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361 else
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66
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362 #endif
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456
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363 port = (port == 80) ? 0 : port;
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484
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364
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365 } else {
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366 port = 0;
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456
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367 }
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66
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368
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454
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369 if (port) {
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370 len += sizeof(":65535") - 1;
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50
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371 }
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362
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372
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373 } else {
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570
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374 ngx_str_null(&host);
|
|
454
|
375 port = 0;
|
|
50
|
376 }
|
|
|
377
|
|
|
378 if (r->chunked) {
|
|
|
379 len += sizeof("Transfer-Encoding: chunked" CRLF) - 1;
|
|
|
380 }
|
|
|
381
|
|
|
382 if (r->keepalive) {
|
|
|
383 len += sizeof("Connection: keep-alive" CRLF) - 1;
|
|
|
384
|
|
|
385 /*
|
|
|
386 * MSIE and Opera ignore the "Keep-Alive: timeout=<N>" header.
|
|
|
387 * MSIE keeps the connection alive for about 60-65 seconds.
|
|
|
388 * Opera keeps the connection alive very long.
|
|
|
389 * Mozilla keeps the connection alive for N plus about 1-10 seconds.
|
|
|
390 * Konqueror keeps the connection alive for about N seconds.
|
|
|
391 */
|
|
|
392
|
|
|
393 if (clcf->keepalive_header) {
|
|
|
394 len += sizeof("Keep-Alive: timeout=") - 1 + NGX_TIME_T_LEN + 2;
|
|
|
395 }
|
|
|
396
|
|
|
397 } else {
|
|
|
398 len += sizeof("Connection: closed" CRLF) - 1;
|
|
|
399 }
|
|
|
400
|
|
386
|
401 #if (NGX_HTTP_GZIP)
|
|
546
|
402 if (r->gzip_vary) {
|
|
|
403 if (clcf->gzip_vary) {
|
|
|
404 len += sizeof("Vary: Accept-Encoding" CRLF) - 1;
|
|
|
405
|
|
|
406 } else {
|
|
|
407 r->gzip_vary = 0;
|
|
|
408 }
|
|
382
|
409 }
|
|
386
|
410 #endif
|
|
382
|
411
|
|
50
|
412 part = &r->headers_out.headers.part;
|
|
|
413 header = part->elts;
|
|
|
414
|
|
|
415 for (i = 0; /* void */; i++) {
|
|
|
416
|
|
|
417 if (i >= part->nelts) {
|
|
|
418 if (part->next == NULL) {
|
|
|
419 break;
|
|
|
420 }
|
|
|
421
|
|
|
422 part = part->next;
|
|
|
423 header = part->elts;
|
|
|
424 i = 0;
|
|
|
425 }
|
|
|
426
|
|
58
|
427 if (header[i].hash == 0) {
|
|
50
|
428 continue;
|
|
|
429 }
|
|
|
430
|
|
|
431 len += header[i].key.len + sizeof(": ") - 1 + header[i].value.len
|
|
|
432 + sizeof(CRLF) - 1;
|
|
|
433 }
|
|
|
434
|
|
|
435 b = ngx_create_temp_buf(r->pool, len);
|
|
|
436 if (b == NULL) {
|
|
|
437 return NGX_ERROR;
|
|
|
438 }
|
|
|
439
|
|
|
440 /* "HTTP/1.x " */
|
|
|
441 b->last = ngx_cpymem(b->last, "HTTP/1.1 ", sizeof("HTTP/1.x ") - 1);
|
|
|
442
|
|
|
443 /* status line */
|
|
478
|
444 if (status_line) {
|
|
|
445 b->last = ngx_copy(b->last, status_line->data, status_line->len);
|
|
50
|
446
|
|
|
447 } else {
|
|
478
|
448 b->last = ngx_sprintf(b->last, "%ui", status);
|
|
50
|
449 }
|
|
|
450 *b->last++ = CR; *b->last++ = LF;
|
|
|
451
|
|
58
|
452 if (r->headers_out.server == NULL) {
|
|
342
|
453 if (clcf->server_tokens) {
|
|
|
454 p = (u_char *) ngx_http_server_full_string;
|
|
|
455 len = sizeof(ngx_http_server_full_string) - 1;
|
|
|
456
|
|
|
457 } else {
|
|
|
458 p = (u_char *) ngx_http_server_string;
|
|
|
459 len = sizeof(ngx_http_server_string) - 1;
|
|
|
460 }
|
|
|
461
|
|
|
462 b->last = ngx_cpymem(b->last, p, len);
|
|
50
|
463 }
|
|
|
464
|
|
58
|
465 if (r->headers_out.date == NULL) {
|
|
50
|
466 b->last = ngx_cpymem(b->last, "Date: ", sizeof("Date: ") - 1);
|
|
|
467 b->last = ngx_cpymem(b->last, ngx_cached_http_time.data,
|
|
|
468 ngx_cached_http_time.len);
|
|
|
469
|
|
|
470 *b->last++ = CR; *b->last++ = LF;
|
|
|
471 }
|
|
|
472
|
|
58
|
473 if (r->headers_out.content_type.len) {
|
|
50
|
474 b->last = ngx_cpymem(b->last, "Content-Type: ",
|
|
|
475 sizeof("Content-Type: ") - 1);
|
|
|
476 p = b->last;
|
|
122
|
477 b->last = ngx_copy(b->last, r->headers_out.content_type.data,
|
|
|
478 r->headers_out.content_type.len);
|
|
50
|
479
|
|
206
|
480 if (r->headers_out.content_type_len == r->headers_out.content_type.len
|
|
|
481 && r->headers_out.charset.len)
|
|
|
482 {
|
|
50
|
483 b->last = ngx_cpymem(b->last, "; charset=",
|
|
|
484 sizeof("; charset=") - 1);
|
|
122
|
485 b->last = ngx_copy(b->last, r->headers_out.charset.data,
|
|
|
486 r->headers_out.charset.len);
|
|
50
|
487
|
|
58
|
488 /* update r->headers_out.content_type for possible logging */
|
|
|
489
|
|
|
490 r->headers_out.content_type.len = b->last - p;
|
|
|
491 r->headers_out.content_type.data = p;
|
|
50
|
492 }
|
|
|
493
|
|
|
494 *b->last++ = CR; *b->last++ = LF;
|
|
|
495 }
|
|
|
496
|
|
58
|
497 if (r->headers_out.content_length == NULL
|
|
|
498 && r->headers_out.content_length_n >= 0)
|
|
|
499 {
|
|
|
500 b->last = ngx_sprintf(b->last, "Content-Length: %O" CRLF,
|
|
|
501 r->headers_out.content_length_n);
|
|
|
502 }
|
|
|
503
|
|
|
504 if (r->headers_out.last_modified == NULL
|
|
|
505 && r->headers_out.last_modified_time != -1)
|
|
|
506 {
|
|
|
507 b->last = ngx_cpymem(b->last, "Last-Modified: ",
|
|
|
508 sizeof("Last-Modified: ") - 1);
|
|
|
509 b->last = ngx_http_time(b->last, r->headers_out.last_modified_time);
|
|
|
510
|
|
|
511 *b->last++ = CR; *b->last++ = LF;
|
|
|
512 }
|
|
|
513
|
|
362
|
514 if (host.data) {
|
|
|
515
|
|
50
|
516 p = b->last + sizeof("Location: ") - 1;
|
|
66
|
517
|
|
|
518 b->last = ngx_cpymem(b->last, "Location: http",
|
|
|
519 sizeof("Location: http") - 1);
|
|
|
520
|
|
|
521 #if (NGX_HTTP_SSL)
|
|
492
|
522 if (c->ssl) {
|
|
66
|
523 *b->last++ ='s';
|
|
|
524 }
|
|
|
525 #endif
|
|
|
526
|
|
|
527 *b->last++ = ':'; *b->last++ = '/'; *b->last++ = '/';
|
|
362
|
528 b->last = ngx_copy(b->last, host.data, host.len);
|
|
66
|
529
|
|
454
|
530 if (port) {
|
|
|
531 b->last = ngx_sprintf(b->last, ":%ui", port);
|
|
50
|
532 }
|
|
|
533
|
|
122
|
534 b->last = ngx_copy(b->last, r->headers_out.location->value.data,
|
|
|
535 r->headers_out.location->value.len);
|
|
50
|
536
|
|
58
|
537 /* update r->headers_out.location->value for possible logging */
|
|
|
538
|
|
50
|
539 r->headers_out.location->value.len = b->last - p;
|
|
|
540 r->headers_out.location->value.data = p;
|
|
570
|
541 ngx_str_set(&r->headers_out.location->key, "Location");
|
|
50
|
542
|
|
|
543 *b->last++ = CR; *b->last++ = LF;
|
|
|
544 }
|
|
|
545
|
|
|
546 if (r->chunked) {
|
|
|
547 b->last = ngx_cpymem(b->last, "Transfer-Encoding: chunked" CRLF,
|
|
|
548 sizeof("Transfer-Encoding: chunked" CRLF) - 1);
|
|
|
549 }
|
|
|
550
|
|
|
551 if (r->keepalive) {
|
|
|
552 b->last = ngx_cpymem(b->last, "Connection: keep-alive" CRLF,
|
|
|
553 sizeof("Connection: keep-alive" CRLF) - 1);
|
|
|
554
|
|
|
555 if (clcf->keepalive_header) {
|
|
|
556 b->last = ngx_sprintf(b->last, "Keep-Alive: timeout=%T" CRLF,
|
|
|
557 clcf->keepalive_header);
|
|
|
558 }
|
|
|
559
|
|
|
560 } else {
|
|
|
561 b->last = ngx_cpymem(b->last, "Connection: close" CRLF,
|
|
|
562 sizeof("Connection: close" CRLF) - 1);
|
|
|
563 }
|
|
|
564
|
|
386
|
565 #if (NGX_HTTP_GZIP)
|
|
546
|
566 if (r->gzip_vary) {
|
|
382
|
567 b->last = ngx_cpymem(b->last, "Vary: Accept-Encoding" CRLF,
|
|
|
568 sizeof("Vary: Accept-Encoding" CRLF) - 1);
|
|
|
569 }
|
|
386
|
570 #endif
|
|
382
|
571
|
|
50
|
572 part = &r->headers_out.headers.part;
|
|
|
573 header = part->elts;
|
|
|
574
|
|
|
575 for (i = 0; /* void */; i++) {
|
|
|
576
|
|
|
577 if (i >= part->nelts) {
|
|
|
578 if (part->next == NULL) {
|
|
|
579 break;
|
|
|
580 }
|
|
|
581
|
|
|
582 part = part->next;
|
|
|
583 header = part->elts;
|
|
|
584 i = 0;
|
|
|
585 }
|
|
|
586
|
|
58
|
587 if (header[i].hash == 0) {
|
|
50
|
588 continue;
|
|
|
589 }
|
|
|
590
|
|
122
|
591 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
|
|
378
|
592 *b->last++ = ':'; *b->last++ = ' ';
|
|
50
|
593
|
|
122
|
594 b->last = ngx_copy(b->last, header[i].value.data, header[i].value.len);
|
|
50
|
595 *b->last++ = CR; *b->last++ = LF;
|
|
|
596 }
|
|
|
597
|
|
492
|
598 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
480
|
599 "%*s", (size_t) (b->last - b->pos), b->pos);
|
|
50
|
600
|
|
|
601 /* the end of HTTP header */
|
|
|
602 *b->last++ = CR; *b->last++ = LF;
|
|
|
603
|
|
|
604 r->header_size = b->last - b->pos;
|
|
|
605
|
|
|
606 if (r->header_only) {
|
|
|
607 b->last_buf = 1;
|
|
|
608 }
|
|
|
609
|
|
|
610 out.buf = b;
|
|
|
611 out.next = NULL;
|
|
|
612
|
|
|
613 return ngx_http_write_filter(r, &out);
|
|
|
614 }
|
|
|
615
|
|
|
616
|
|
|
617 static ngx_int_t
|
|
230
|
618 ngx_http_header_filter_init(ngx_conf_t *cf)
|
|
50
|
619 {
|
|
|
620 ngx_http_top_header_filter = ngx_http_header_filter;
|
|
|
621
|
|
|
622 return NGX_OK;
|
|
|
623 }
|
