Re: [Linphone-users] Linphone Web plugin for Firefox is built for specific shared library version libpolarssl.so.0

[joe]

G'day JG,
        thanks for sticking with me.

I have three instances of Ubuntu on my PS, 1204 Unity, 1204 LTS and
1504 Lubuntu,, Firefox 38  Videeo Download Helper and Ubuntu Firefox
Modifications 3. addons.
I feel like a dill for not checking the Firefox addons on all three
platforms but am pleased to say the LinphoneWeb does in fact install
but is not recognised and so  ever decreasing circles till you know
what.

I checked the repos and found it is present but not installed in
12.04 LTS while libpolarssl5 and 7 are,  so this arvo I will install it
and see what happens.

The next thing is a guide on how actually use it, will I get an icon in
the Firefox Toolbar, does the other person need to register or have
a Linphone account, and have Linphone dropped the ball and given up
on it.

What are your thoughts on installing libpolarssl0 from the repos?
regards Joe.   

On Sun, 31 May 2015 18:23:41 +0200
J G Miller <address@hidden> wrote:

> Good - this is exactly what you need to report.
> 
> What you have not stated though is, which Linux Distribution you are
> using, which version of Firefox, and the rather awkward one -- which
> Firefox addons/plugins you have installed.  Sometimes some Firefox
> addons/plugins have a bad affect on each other and stops them from
> working.  Also, doing in "in place" upgrade of Firefox with various
> plugins installed can also cause some loss of basic functionality as
> I recently discovered and had to start with a fresh profile and then
> add everything back again.
> 
> So when you are in any doubt as to whether or not a plugin or addon
> works, you should use a fresh profile or even better to avoid any
> possibility of losing your profile with all your plugins due to
> deleting the wrong one after testing, is to have a test user account
> eg joe2 with a clean ~joe2/.mozilla directory on startu
> 
>  > Have you installed Linphone Web on a 32 bit PC, if so how did you
>  > do it?  
> 
> Well when I was doing my first attempt at replying to your message, I
> had not, and then tried to install as a different user, but my
> display and keyboard locked up due to a recurring Radeon Xserver bug
> (usually accompanied by lots of EQ overflowing messages in the
> Xorg.log).
> 
> Today I have tried again and have a number of issues to mention.
> 
> First of all, when you download Firefox addons/plugins in general,
> the file gets downloaded to a temporary directory, usually /tmp or
> one pointed to if the TMPDIR variable is set to point to somewhere
> else.  I have it set to /var/tmp/${USER} because /tmp is a small
> tmpfs and of course it is essential that the size of the file system
> is large enough to hold the downloaded file.  So make sure your /tmp
> or ${TMPDIR} is large enough to hold the download.
> 
> Now when doing the test installation, instead of starting firefox
> from the menu, fire up  a terminal and launch firefox from the
> command line prompt.
> 
> This way you will be able to see error/warning messages which
> otherwise just get sent to /dev/null and thus have some diagnostics
> of what may be going wrong.
> 
> By doing this, I have found that the reason I am unable to get the
> LinphoneWeb addon working (goes into the endless cycle of "plugin not
> installed, download, allow installation, restart that you have
> experienced) is all because when the plugin, which is in fact
> downloaded and installed, gets called, it cannot run.
> 
> Thus the web page therefore wrongly concludes that it is not
> installed.
> 
> And the reason for this sad state of affairs is all because as the
> error message in the terminal reveals
> 
>   LoadPlugin: failed to initialize shared library
>   /home/users/testuser/.mozilla/firefox/1hy1uwwx.default/extensions/
>    {A7F0040E-4481-4C03-952F-D8491E5036A7}/plugins/nplinphone-web-1.0.14.so
>   [libpolarssl.so.0: cannot open shared object file: No such file or
> directory]
> 
> namely  libpolarssl.so.0  is NOT found on the system
> 
> (Now you see why you need to run Firefox from the command line in
> order to be able to see these all important diagnostic error
> messages.)
> 
> What is installed (Linux Mint 17.1 32 bit) however
> is /usr/lib/libpolarssl.so.5
> 
>    ii  libpolarssl5  1.3.4-1  i386  lightweight crypto and SSL/TLS
> library
> 
> So why the plugin is built to look specifically for the version
> libpolarssl.so.0 and not the "generic" libpolarssl.so which will
> point to installed version libpolarssl.so.5 or whichever version of
> the shared library is installed, I do not know and only the Linphone
> developers can answer that and address the issue.
> 
> One could do something which is extremely bad, dirty, and nasty hack
> and may not work at all, and should only be done as an intermediate
> measure with the understanding that it may kill all of the kittens in
> your neighborhood, and promise to remove it as soon as possible, is
> as root do
> 
>          cd /usr/lib
> 
>          ln -s libpolarssl.so  libpolarssl.so.0
> 
> Then test in Firefox to see if the plugin works (restart Firefox and
> reload the Linphone web page) but it probably will not and may do
> something bad ...
> 
> Actually it does appear to work to get the plugin recognized as
> installed and the Linphone login page then appears but I have not
> tried any further than that.
> 
> BUT this is not a "fix".
> 
> This is an abominable "emergency" hack which must be removed as soon
> as possible, similar to using horse dung to spread on an infected
> wound as a last resort to try and kill the infection because there
> are no anitbiotics available until the plane arrives in a weeks time
> with fresh supplies from the pharmacy.
> 
> So a response from the Linphone Developers Team is needed to put
> things in order ...
> 
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