Bug 18202 - [dbus-glib limitation] GetAvatarRequirements returns u instead of q
Summary: [dbus-glib limitation] GetAvatarRequirements returns u instead of q
Status: RESOLVED MOVED
Alias: None
Product: Telepathy
Classification: Unclassified
Component: gabble (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Telepathy bugs list
QA Contact: Telepathy bugs list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-10-24 04:32 UTC by Stefan Eilers
Modified: 2019-12-03 19:18 UTC (History)
0 users

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Description Stefan Eilers 2008-10-24 04:32:07 UTC
Checked Gabble version 0.7.12

The spec defines the following:
    <method name="GetAvatarRequirements"
      tp:name-for-bindings="Get_Avatar_Requirements">
      <arg direction="out" type="as">
        <tp:docstring>
          An array of supported MIME types (eg image/jpeg)
        </tp:docstring>
      </arg>
      <arg direction="out" type="q">
        <tp:docstring>
          The minimum image width in pixels
        </tp:docstring>
      </arg>
      <arg direction="out" type="q">
        <tp:docstring>
          The minimum image height in pixels
        </tp:docstring>
      </arg>
      <arg direction="out" type="q">
        <tp:docstring>
          The maximum image width in pixels, or 0 if there is no limit
        </tp:docstring>
      </arg>
      <arg direction="out" type="q">
        <tp:docstring>
          The maximum image height in pixels, or 0 if there is no limit
        </tp:docstring>
      </arg>
      <arg direction="out" type="u">
        <tp:docstring>
          The maximum image size in bytes, or 0 if there is no limit
        </tp:docstring>
      </arg>

But I receive on the DBUS:
method call sender=:1.261 -> dest=org.freedesktop.Telepathy.Connection.gabble.jabber.basyskom_40localhost_2fTelepathy path=/org/freedesktop/Telepathy/Connection/gabble/jabber/basyskom_40localhost_2fTelepathy; interface=org.freedesktop.Telepathy.Connection.Interface.Avatars; member=GetAvatarRequirements
method return sender=:1.262 -> dest=:1.261 reply_serial=39
   array [
      string "image/png"
      string "image/jpeg"
      string "image/gif"
   ]
   uint32 32
   uint32 32
   uint32 96
   uint32 96
   uint32 8192
Comment 1 Simon McVittie 2008-10-24 04:48:46 UTC
Damn. We might not even be able to solve this... it's almost certainly dbus-glib's fault.

(dbus-glib doesn't differentiate between 16- and 32-bit integers - it maps them both to G_TYPE_[U]INT - so it doesn't notice the difference. Python is also very permissive about types, so we've never encountered this problem in GLib and Python bindings...)

As a temporary workaround, don't bother calling GetAvatarRequirements, and just assume something reasonable (64x64 JPEGs or PNGs should work on most protocols for instance).

We could work around this service-side by adding an AvatarRequirements property that avoids the problematic 16-bit types.
Comment 2 GitLab Migration User 2019-12-03 19:18:13 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/telepathy/telepathy-gabble/issues/16.


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