Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_empty_gif_module.c @ 4009:3183165283cc
Fixing proxy_set_body and proxy_pass_request_body with SSL.
Flush flag wasn't set in constructed buffer and this prevented any data
from being actually sent to upstream due to SSL buffering. Make sure
we always set flush in the last buffer we are going to sent.
See here for report:
http://nginx.org/pipermail/nginx-ru/2011-June/041552.html
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Thu, 18 Aug 2011 16:34:24 +0000 |
| parents | c0113b6648de |
| children | 18f1cb12c6d7 |
| rev | line source |
|---|---|
| 577 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 #include <ngx_config.h> | |
| 7 #include <ngx_core.h> | |
| 8 #include <ngx_http.h> | |
| 9 | |
| 10 | |
| 11 static char *ngx_http_empty_gif(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 12 void *conf); | |
| 13 | |
| 14 static ngx_command_t ngx_http_empty_gif_commands[] = { | |
| 15 | |
| 16 { ngx_string("empty_gif"), | |
| 17 NGX_HTTP_LOC_CONF|NGX_CONF_NOARGS, | |
| 18 ngx_http_empty_gif, | |
| 19 0, | |
| 20 0, | |
| 21 NULL }, | |
| 22 | |
| 23 ngx_null_command | |
| 24 }; | |
| 25 | |
| 26 | |
| 27 /* the minimal single pixel transparent GIF, 43 bytes */ | |
| 28 | |
| 29 static u_char ngx_empty_gif[] = { | |
| 30 | |
| 581 | 31 'G', 'I', 'F', '8', '9', 'a', /* header */ |
| 577 | 32 |
| 581 | 33 /* logical screen descriptor */ |
| 34 0x01, 0x00, /* logical screen width */ | |
| 35 0x01, 0x00, /* logical screen height */ | |
| 36 0x80, /* global 1-bit color table */ | |
| 37 0x01, /* background color #1 */ | |
| 38 0x00, /* no aspect ratio */ | |
| 577 | 39 |
| 581 | 40 /* global color table */ |
| 41 0x00, 0x00, 0x00, /* #0: black */ | |
| 42 0xff, 0xff, 0xff, /* #1: white */ | |
| 577 | 43 |
| 581 | 44 /* graphic control extension */ |
| 45 0x21, /* extension introducer */ | |
| 46 0xf9, /* graphic control label */ | |
| 47 0x04, /* block size */ | |
| 48 0x01, /* transparent color is given, */ | |
| 49 /* no disposal specified, */ | |
| 50 /* user input is not expected */ | |
| 51 0x00, 0x00, /* delay time */ | |
| 52 0x01, /* transparent color #1 */ | |
| 53 0x00, /* block terminator */ | |
| 577 | 54 |
| 581 | 55 /* image descriptor */ |
| 56 0x2c, /* image separator */ | |
| 57 0x00, 0x00, /* image left position */ | |
| 58 0x00, 0x00, /* image top position */ | |
| 59 0x01, 0x00, /* image width */ | |
| 60 0x01, 0x00, /* image height */ | |
| 61 0x00, /* no local color table, no interlaced */ | |
| 577 | 62 |
| 581 | 63 /* table based image data */ |
| 64 0x02, /* LZW minimum code size, */ | |
| 65 /* must be at least 2-bit */ | |
| 66 0x02, /* block size */ | |
| 577 | 67 0x4c, 0x01, /* compressed bytes 01_001_100, 0000000_1 */ |
| 581 | 68 /* 100: clear code */ |
| 69 /* 001: 1 */ | |
| 70 /* 101: end of information code */ | |
| 71 0x00, /* block terminator */ | |
| 577 | 72 |
| 581 | 73 0x3B /* trailer */ |
| 577 | 74 }; |
| 75 | |
| 76 | |
| 667 | 77 static ngx_http_module_t ngx_http_empty_gif_module_ctx = { |
| 577 | 78 NULL, /* preconfiguration */ |
| 79 NULL, /* postconfiguration */ | |
| 80 | |
| 81 NULL, /* create main configuration */ | |
| 82 NULL, /* init main configuration */ | |
| 83 | |
| 84 NULL, /* create server configuration */ | |
| 85 NULL, /* merge server configuration */ | |
| 86 | |
| 87 NULL, /* create location configuration */ | |
| 88 NULL /* merge location configuration */ | |
| 89 }; | |
| 90 | |
| 91 | |
| 92 ngx_module_t ngx_http_empty_gif_module = { | |
| 93 NGX_MODULE_V1, | |
| 94 &ngx_http_empty_gif_module_ctx, /* module context */ | |
| 95 ngx_http_empty_gif_commands, /* module directives */ | |
| 96 NGX_HTTP_MODULE, /* module type */ | |
| 97 NULL, /* init master */ | |
| 98 NULL, /* init module */ | |
| 99 NULL, /* init process */ | |
| 100 NULL, /* init thread */ | |
| 101 NULL, /* exit thread */ | |
| 102 NULL, /* exit process */ | |
| 103 NULL, /* exit master */ | |
| 104 NGX_MODULE_V1_PADDING | |
| 105 }; | |
| 106 | |
| 107 | |
|
3635
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
108 static ngx_str_t ngx_http_gif_type = ngx_string("image/gif"); |
|
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
109 |
|
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
110 |
| 577 | 111 static ngx_int_t |
| 112 ngx_http_empty_gif_handler(ngx_http_request_t *r) | |
| 113 { | |
|
3635
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
114 ngx_int_t rc; |
|
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
115 ngx_http_complex_value_t cv; |
| 577 | 116 |
| 645 | 117 if (!(r->method & (NGX_HTTP_GET|NGX_HTTP_HEAD))) { |
| 577 | 118 return NGX_HTTP_NOT_ALLOWED; |
| 119 } | |
| 120 | |
|
1370
cc114c85be0f
rename ngx_http_discard_body() to ngx_http_discard_request_body()
Igor Sysoev <igor@sysoev.ru>
parents:
1038
diff
changeset
|
121 rc = ngx_http_discard_request_body(r); |
| 577 | 122 |
| 1374 | 123 if (rc != NGX_OK) { |
| 577 | 124 return rc; |
| 125 } | |
| 126 | |
|
3635
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
127 ngx_memzero(&cv, sizeof(ngx_http_complex_value_t)); |
| 577 | 128 |
|
3635
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
129 cv.value.len = sizeof(ngx_empty_gif); |
|
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
130 cv.value.data = ngx_empty_gif; |
| 577 | 131 r->headers_out.last_modified_time = 23349600; |
| 132 | |
|
3635
c0113b6648de
use ngx_http_send_response() in empty_gif
Igor Sysoev <igor@sysoev.ru>
parents:
3516
diff
changeset
|
133 return ngx_http_send_response(r, NGX_HTTP_OK, &ngx_http_gif_type, &cv); |
| 577 | 134 } |
| 135 | |
| 136 | |
| 137 static char * | |
| 138 ngx_http_empty_gif(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 139 { | |
| 140 ngx_http_core_loc_conf_t *clcf; | |
| 141 | |
| 142 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); | |
| 143 clcf->handler = ngx_http_empty_gif_handler; | |
| 144 | |
| 145 return NGX_CONF_OK; | |
| 146 } |