Bash 如何使用netcat/socat/telnet手动连接到websocket?
我正在尝试“手动”连接,以了解协议的工作原理(我正在为此使用socat)。但是,服务器总是在不提供应答的情况下关闭连接。知道为什么吗 以下是我的工作:Bash 如何使用netcat/socat/telnet手动连接到websocket?,bash,terminal,websocket,socat,Bash,Terminal,Websocket,Socat,我正在尝试“手动”连接,以了解协议的工作原理(我正在为此使用socat)。但是,服务器总是在不提供应答的情况下关闭连接。知道为什么吗 以下是我的工作: socat - TCP:echo.websocket.org:80 然后,我在终端中粘贴以下文本: GET /?encoding=text HTTP/1.1 Origin: http://www.websocket.org Connection: Upgrade Host: echo.websocket.org Sec-WebSocket-Ke
socat - TCP:echo.websocket.org:80
然后,我在终端中粘贴以下文本:
GET /?encoding=text HTTP/1.1
Origin: http://www.websocket.org
Connection: Upgrade
Host: echo.websocket.org
Sec-WebSocket-Key: P7Kp2hTLNRPFMGLxPV47eQ==
Upgrade: websocket
Sec-WebSocket-Version: 13
我在同一台机器上嗅探了firefox中与开发者工具的连接参数,在这台机器上工作得完美无缺:因此,我认为它们是正确的。但是,在此之后,服务器会立即关闭连接,而不提供答案。为什么?如何“手动”实现协议
我希望在我的终端中进行类型测试,并让服务器用我键入的内容进行回复(它在web浏览器中工作)。我想您希望修改套接字流以将\n(换行)转换为CRLF(回车和换行)。执行
info socat
生成包含此修饰符的详细信息:
crnl Converts the default line termination character NL ('\n', 0x0a)
to/from CRNL ("\r\n", 0x0d0a) when writing/reading on this chan-
nel (example). Note: socat simply strips all CR characters.
所以我认为你应该能够做到这一点:
socat - TCP:echo.websocket.org:80,crnl
我想补充一点,我的WebSocket工具可以帮助调试WebSocket协议,尤其是与socat结合使用时:
$ websocat - ws-c:sh-c:"socat -v -x - tcp:echo.websocket.org:80" --ws-c-uri ws://echo.websocket.org
> 2018/07/03 16:30:06.021658 length=157 from=0 to=156
47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 0d 0a GET / HTTP/1.1..
48 6f 73 74 3a 20 65 63 68 6f 2e 77 65 62 73 6f Host: echo.webso
63 6b 65 74 2e 6f 72 67 0d 0a cket.org..
43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 55 70 67 72 Connection: Upgr
61 64 65 0d 0a ade..
55 70 67 72 61 64 65 3a 20 77 65 62 73 6f 63 6b Upgrade: websock
65 74 0d 0a et..
53 65 63 2d 57 65 62 53 6f 63 6b 65 74 2d 56 65 Sec-WebSocket-Ve
72 73 69 6f 6e 3a 20 31 33 0d 0a rsion: 13..
53 65 63 2d 57 65 62 53 6f 63 6b 65 74 2d 4b 65 Sec-WebSocket-Ke
79 3a 20 59 76 36 32 44 31 57 6d 7a 79 79 31 65 y: Yv62D1Wmzyy1e
69 6d 62 47 6d 68 69 61 67 3d 3d 0d 0a imbGmhiag==..
0d 0a ..
--
< 2018/07/03 16:30:06.164057 length=201 from=0 to=200
48 54 54 50 2f 31 2e 31 20 31 30 31 20 57 65 62 HTTP/1.1 101 Web
20 53 6f 63 6b 65 74 20 50 72 6f 74 6f 63 6f 6c Socket Protocol
20 48 61 6e 64 73 68 61 6b 65 0d 0a Handshake..
43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 55 70 67 72 Connection: Upgr
61 64 65 0d 0a ade..
44 61 74 65 3a 20 54 75 65 2c 20 30 33 20 4a 75 Date: Tue, 03 Ju
6c 20 32 30 31 38 20 31 33 3a 31 35 3a 30 30 20 l 2018 13:15:00
47 4d 54 0d 0a GMT..
53 65 63 2d 57 65 62 53 6f 63 6b 65 74 2d 41 63 Sec-WebSocket-Ac
63 65 70 74 3a 20 55 56 6a 32 74 35 50 43 7a 62 cept: UVj2t5PCzb
58 49 32 52 4e 51 75 70 2f 71 48 31 63 5a 44 6e XI2RNQup/qH1cZDn
38 3d 0d 0a 8=..
53 65 72 76 65 72 3a 20 4b 61 61 7a 69 6e 67 20 Server: Kaazing
47 61 74 65 77 61 79 0d 0a Gateway..
55 70 67 72 61 64 65 3a 20 77 65 62 73 6f 63 6b Upgrade: websock
65 74 0d 0a et..
0d 0a ..
--
ABCDEF
> 2018/07/03 16:30:12.707919 length=13 from=157 to=169
82 87 40 57 f5 88 01 15 b6 cc 05 11 ff ..@W.........
--
< 2018/07/03 16:30:12.848398 length=9 from=201 to=209
82 07 41 42 43 44 45 46 0a ..ABCDEF.
--
ABCDEF
> 2018/07/03 16:30:14.528333 length=6 from=170 to=175
88 80 18 ec 05 a8 ......
--
< 2018/07/03 16:30:14.671629 length=2 from=210 to=211
88 00 ..
--
或者,这里有一种从命令行使用corephp从
wss
安全websocket流中连接和读取流的方法
php -r '$sock=stream_socket_client("tls://echo.websocket.org:443",$e,$n,30,STREAM_CLIENT_CONNECT,stream_context_create(null));if(!$sock){echo"[$n]$e".PHP_EOL;}else{fwrite($sock,"GET / HTTP/1.1\r\nHost: echo.websocket.org\r\nAccept: */*\r\nConnection: Upgrade\r\nUpgrade: websocket\r\nSec-WebSocket-Version: 13\r\nSec-WebSocket-Key: ".rand(0,999)."\r\n\r\n");while(!feof($sock)){var_dump(fgets($sock,2048));}}'
其他类似的示例,从另一个wss服务器拉取:(不获取rekt)
php -r '$sock=stream_socket_client("tls://echo.websocket.org:443",$e,$n,30,STREAM_CLIENT_CONNECT,stream_context_create(null));if(!$sock){echo"[$n]$e".PHP_EOL;}else{fwrite($sock,"GET / HTTP/1.1\r\nHost: echo.websocket.org\r\nAccept: */*\r\nConnection: Upgrade\r\nUpgrade: websocket\r\nSec-WebSocket-Version: 13\r\nSec-WebSocket-Key: ".rand(0,999)."\r\n\r\n");while(!feof($sock)){var_dump(fgets($sock,2048));}}'
php -r '$sock=stream_socket_client("tls://stream.binance.com:9443",$e,$n,30,STREAM_CLIENT_CONNECT,stream_context_create(null));if(!$sock){echo"[$n]$e".PHP_EOL;}else{fwrite($sock,"GET /stream?streams=btcusdt@kline_1m HTTP/1.1\r\nHost: stream.binance.com:9443\r\nAccept: */*\r\nConnection: Upgrade\r\nUpgrade: websocket\r\nSec-WebSocket-Version: 13\r\nSec-WebSocket-Key: ".rand(0,999)."\r\n\r\n");while(!feof($sock)){var_dump(explode(",",fgets($sock,512)));}}'