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[] (0) Make the Web Socket Protocol handshake more unique. (Re: webso…
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…cket HTTP response parsing) (credit: pt, jr)

git-svn-id: http://svn.whatwg.org/webapps@1849 340c8d12-0b0e-0410-8428-c7bf67bfef74
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@Hixie
Hixie committed Jul 7, 2008
1 parent 6168f23 commit 41b1f18
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34 changes: 18 additions & 16 deletions index
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<h1 id=html-5>HTML 5</h1>

<h2 class="no-num no-toc" id=draft>Draft Recommendation &mdash; 6 July
<h2 class="no-num no-toc" id=draft>Draft Recommendation &mdash; 7 July
2008</h2>

<p>You can take part in this work. <a
Expand Down Expand Up @@ -41618,21 +41618,22 @@ Proxy-authorization: Basic ZWRuYW1vZGU6bm9jYXBlcyE=</pre>
<p class=note>Just a CRLF (a blank line).</p>

<li>
<p>Read the first 75 bytes from the server. If the connection closes
before 75 bytes are received, or if the first 75 bytes aren't exactly
<p>Read the first 85 bytes from the server. If the connection closes
before 85 bytes are received, or if the first 85 bytes aren't exactly
equal to the following bytes, then <a href="#fail-the">fail the Web
Socket connection</a> and abort these steps.</p>

<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 53 77 69
74 63 68 69 6e 67 20 50 72 6f 74 6f 63 6f 6c 73
0d 0a 55 70 67 72 61 64 65 3a 20 57 65 62 53 6f
63 6b 65 74 0d 0a 43 6f 6e 6e 65 63 74 69 6f 6e
3a 20 55 70 67 72 61 64 65 0d 0a</pre>
<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 57 65 62
20 53 6f 63 6b 65 74 20 50 72 6f 74 6f 63 6f 6c
20 48 61 6e 64 73 68 61 6b 65 0d 0a 55 70 67 72
61 64 65 3a 20 57 65 62 53 6f 63 6b 65 74 0d 0a
43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 55 70 67 72
61 64 65 0d 0a</pre>

<p class=note>The string
"HTTP/1.1&nbsp;101&nbsp;Switching&nbsp;Protocols", CRLF, the string
"Upgrade:&nbsp;WebSocket", CRLF, the string "Connection:&nbsp;Upgrade",
CRLF.</p>
"HTTP/1.1&nbsp;101&nbsp;Web&nbsp;Socket&nbsp;Protocol&nbsp;Handshake",
CRLF, the string "Upgrade:&nbsp;WebSocket", CRLF, the string
"Connection:&nbsp;Upgrade", CRLF.</p>

<p class=big-issue>What if the response is a 401 asking for credentials?</p>

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<p>Listen on a port for TCP/IP. Upon receiving a connection request, open a
connection and send the following bytes back to the client:

<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 53 77 69
74 63 68 69 6e 67 20 50 72 6f 74 6f 63 6f 6c 73
0d 0a 55 70 67 72 61 64 65 3a 20 57 65 62 53 6f
63 6b 65 74 0d 0a 43 6f 6e 6e 65 63 74 69 6f 6e
3a 20 55 70 67 72 61 64 65 0d 0a</pre>
<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 57 65 62
20 53 6f 63 6b 65 74 20 50 72 6f 74 6f 63 6f 6c
20 48 61 6e 64 73 68 61 6b 65 0d 0a 55 70 67 72
61 64 65 3a 20 57 65 62 53 6f 63 6b 65 74 0d 0a
43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 55 70 67 72
61 64 65 0d 0a</pre>

<p>Send the string "<code title="">WebSocket-Origin</code>" followed by a
U+003A COLON (":") followed by the <a href="#ascii" title="ASCII
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28 changes: 15 additions & 13 deletions source
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Expand Up @@ -39200,19 +39200,20 @@ Proxy-authorization: Basic ZWRuYW1vZGU6bm9jYXBlcyE=</pre>

<li>

<p>Read the first 75 bytes from the server. If the connection
closes before 75 bytes are received, or if the first 75 bytes
<p>Read the first 85 bytes from the server. If the connection
closes before 85 bytes are received, or if the first 85 bytes
aren't exactly equal to the following bytes, then <span>fail the
Web Socket connection</span> and abort these steps.</p>

<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 53 77 69
74 63 68 69 6e 67 20 50 72 6f 74 6f 63 6f 6c 73
0d 0a 55 70 67 72 61 64 65 3a 20 57 65 62 53 6f
63 6b 65 74 0d 0a 43 6f 6e 6e 65 63 74 69 6f 6e
3a 20 55 70 67 72 61 64 65 0d 0a</pre>
<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 57 65 62
20 53 6f 63 6b 65 74 20 50 72 6f 74 6f 63 6f 6c
20 48 61 6e 64 73 68 61 6b 65 0d 0a 55 70 67 72
61 64 65 3a 20 57 65 62 53 6f 63 6b 65 74 0d 0a
43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 55 70 67 72
61 64 65 0d 0a</pre>

<p class="note">The string
"HTTP/1.1&nbsp;101&nbsp;Switching&nbsp;Protocols", CRLF, the
"HTTP/1.1&nbsp;101&nbsp;Web&nbsp;Socket&nbsp;Protocol&nbsp;Handshake", CRLF, the
string "Upgrade:&nbsp;WebSocket", CRLF, the string
"Connection:&nbsp;Upgrade", CRLF.</p>

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open a connection and send the following bytes back to the
client:</p>

<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 53 77 69
74 63 68 69 6e 67 20 50 72 6f 74 6f 63 6f 6c 73
0d 0a 55 70 67 72 61 64 65 3a 20 57 65 62 53 6f
63 6b 65 74 0d 0a 43 6f 6e 6e 65 63 74 69 6f 6e
3a 20 55 70 67 72 61 64 65 0d 0a</pre>
<pre>48 54 54 50 2f 31 2e 31 20 31 30 31 20 57 65 62
20 53 6f 63 6b 65 74 20 50 72 6f 74 6f 63 6f 6c
20 48 61 6e 64 73 68 61 6b 65 0d 0a 55 70 67 72
61 64 65 3a 20 57 65 62 53 6f 63 6b 65 74 0d 0a
43 6f 6e 6e 65 63 74 69 6f 6e 3a 20 55 70 67 72
61 64 65 0d 0a</pre>

<p>Send the string "<code title="">WebSocket-Origin</code>" followed
by a U+003A COLON (":") followed by the <span title="ASCII
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