touch-packages team mailing list archive

[David Clayton <629646@xxxxxxxxxxxxxxxxxx>]

The bug is back in Ubuntu 15.10 in libgweather 3.16.1-1ubuntu1

I just installed this release in preparation for the next Ubuntu LTS in
2016 and have seen that the earlier fixes of the Australian BOM
forecasts have not propagated through to this version.

I would add Wily to the list of affected versions but I cannot seem to
do it!

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libgweather in Ubuntu.
https://bugs.launchpad.net/bugs/629646

Title:
  Locations using bom.gov.au for forecast data no longer can no longer
  retrieve forecast data

Status in libgweather:
  Fix Released
Status in libgweather package in Ubuntu:
  Fix Released
Status in libgweather source package in Lucid:
  Fix Released
Status in libgweather source package in Maverick:
  Fix Released
Status in libgweather source package in Natty:
  Fix Released
Status in libgweather source package in Oneiric:
  Fix Released

Bug description:
  [Impact]
  libgweather is unable to parse the HTML data previously returned from the Australian Bureau of Meteorology

  [Development Fix]
  Fix committed upstream as a80552f51c641754ef8410eebea6debc23a25561, 73829e640d2ebd7f926563145ca81702c17d0abb. Picked up in 3.2.1-1ubuntu1

  [Stable Fix]
  Debdiffs attached for Lucid (https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/629646/+attachment/2610674/+files/libgweather_2.30.0-0ubuntu1.1.debdiff), Maverick (https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/629646/+attachment/2610675/+files/libgweather_2.30.3-0ubuntu1.1.debdiff), Natty (https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/629646/+attachment/2610676/+files/libgweather_2.30.3-1ubuntu1.1.debdiff), and Oneiric (https://bugs.launchpad.net/ubuntu/+source/libgweather/+bug/629646/+attachment/2610677/+files/libgweather_3.2.0-0ubuntu1.1.debdiff)

  [Test Case]
  1. Login using a session with the gnome-panel (Ubuntu for Lucid, Maverick; Ubuntu Classic for Natty; GNOME Classic on Oneiric)
  2. Right-click on the panel (Alt-right click for Oneiric) and select Add to Panel...
  3. Choose the Weather Report applet and add it to the panel
  4. Right click on the weather applet and choose preferences
  5. Go to the Location tab 
  6. Search for and select "Sydney Airport", then close the preferences window
  7. Left-click on the weather applet
  8. Click "Update" from the details tab
  9. Switch to the "Forecast" tab, and observe that the forecast is not available (or is, with the patch)

  [Regression Potential]
  Minimal. The patch is isolated, only changes parsing for the affected region (AU), and cherry-picked from upstream

  ===================
  Original bug description:
  -----------------------------------
  Issue Description
  -----------------------------------

  In relation to "weather-applet" and "libgweather" - over the past
  several months, the Australian Bureau of Meteorology (BOM) has updated
  its website to deliver a HTML forecast page for a number of locations
  around Australia.

  Currently - the <zone> tag from "Locations.xml" is used within the
  "weather-bom.c" to retrieve information from the appropriate
  bom.gov.au URL which if successful is then parsed in the "bom_parse"
  function.

  With the new HTML forecast pages for various locations however, the
  data can not be successfully parsed and instead the message "Forecast
  not currently available for this location." shows up on the Forecast
  tab of weather-applet.

  -----------------------------------
  Area of Interest
  -----------------------------------

  Within "weather-bom.c" - the following line of code points to URLs
  (depending on location) that now have HTML forecast data rather than
  plain text...

      url = g_strdup_printf ("http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?%s.txt";,
        loc->zone + 1);

  -----------------------------------
  Suggested Fix
  -----------------------------------

  I suggest/propose that the URL above be changed to point to plain text
  documents on the BOM FTP server (ftp://ftp2.bom.gov.au/anon/gen/fwo/)
  with the appropriate weather station zone.

  e.g. for Sydney (Zone IDN10064) - currently the code would point to:

  http://www.bom.gov.au/cgi-bin/wrap_fwo.pl?IDN10064.txt

  However this is now a HTML forecast, which causes the issue noted
  above... by pointing the code to:

  ftp://ftp2.bom.gov.au/anon/gen/fwo/IDN10064.txt

  The plain text forecast can be used without any modification to the
  other functions/aspects of the code.

  -----------------------------------
  Patches - Untested!
  -----------------------------------

  Please see the attached "weather-bom.c" which includes the suggested
  fix (i.e. patched version). Note it will need to be/should be tested
  by someone who knows how to recompile the libgweather source.

  ---------------------------------------------------------------------------------------------------------
  System information
  ---------------------------------------------------------------------------------------------------------
  Description:	Ubuntu 10.04.1 LTS
  Release:	10.04

  libgweather-common:
    Installed: 2.30.0-0ubuntu1
    Candidate: 2.30.0-0ubuntu1
    Version table:
   *** 2.30.0-0ubuntu1 0
          500 http://ftp.iinet.net.au/linux/ubuntu/ lucid/main Packages
          100 /var/lib/dpkg/status
  ---------------------------------------------------------------------------------------------------------

To manage notifications about this bug go to:
https://bugs.launchpad.net/libgweather/+bug/629646/+subscriptions