necouchman commented on a change in pull request #111: GUACAMOLE-422: Document
support for timezone handshake and parameter.
URL: https://github.com/apache/guacamole-manual/pull/111#discussion_r310305281
##########
File path: src/chapters/protocol.xml
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@@ -57,29 +57,122 @@
<programlisting>6.select,3.vnc;</programlisting>
</informalexample>
<para>After receiving the "select" instruction, the server will load
the associated client
- support and respond with a list of accepted parameter names using
an "args"
- instruction:</para>
+ support and respond with its protocol version and a list of
accepted parameter names
+ using an "args" instruction:</para>
<informalexample>
-
<programlisting>4.args,8.hostname,4.port,8.password,13.swap-red-blue,9.read-only;</programlisting>
+
<programlisting>4.args,13.VERSION_1_1_0,8.hostname,4.port,8.password,13.swap-red-blue,9.read-only;</programlisting>
</informalexample>
+ <para>The protocol version is used to negotiate compatibility between
differing
+ versions of client and server, allowing the two sides to negotiate
the highest
+ supported version and enable or disable features associated with
that version.
+ Older versions of the Guacamole Client that do not support this
instruction
+ will silently ignore it as an empty connection parameter. Valid
protocol versions
+ are as follows:<informaltable frame="all">
+ <tgroup cols="3">
+ <colspec colname="c1" colnum="1" colwidth="1.25*"/>
+ <colspec colname="c2" colnum="2" colwidth="3.25*"/>
+ <colspec colname="c3" colnum="3" colwidth="9*"/>
+ <thead>
+ <row>
+ <entry>Version</entry>
+ <entry>Value</entry>
+ <entry>Description</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry>1.0.0</entry>
+ <entry><constant>VERSION_1_0_0</constant></entry>
+ <entry>This is the default version and applies to
any
+ versions prior to 1.1.0. Version 1.0.0 of the
protocol
+ does not support protocol negotiation, and
requires that
+ the handshake instructions are delivered in a
certain
+ order, and that they are present (even if
empty).</entry>
+ </row>
+ <row>
+ <entry>1.1.0</entry>
+ <entry><constant>VERSION_1_1_0</constant></entry>
+ <entry>Protocol version 1.1.0 introduces support
for
+ protocol version negotiation, arbitrary order of
the
+ handshake instructions, and support for passing the
+ timezone instruction during the handshake.</entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </informaltable>
+ </para>
<para>After receiving the list of arguments, the client is required to
respond with the list
of supported audio, video, and image mimetypes, the optimal
display size and resolution,
- and the values for all arguments available, even if blank. If any
of these requirements
- are left out, the connection will close:</para>
+ and the values for all arguments available, even if blank.</para>
<informalexample>
<programlisting>4.size,4.1024,3.768,2.96;
5.audio,9.audio/ogg;
5.video;
5.image,9.image/png,10.image/jpeg;
+8.timezone,16.America/New_York;
7.connect,9.localhost,4.5900,0.,0.,0.;</programlisting>
Review comment:
Nope, should contain the version in that string...
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