[snap] Cannot use PyUno connector

[Tim Edwards]

It's not possible to use pyoo, which uses the Uno connector to Libreoffice, on a machine where the Libreoffice Snap is installed. The pyoo/Uno connector works fine with the libreoffice Apt packages.

To reproduce run this script:
#!/usr/bin/env python3
import pyoo
import subprocess
import time
import shlex

# PyOO needs a running Libreoffice process to do its work
lo_proc = subprocess.Popen(shlex.split("soffice --accept=\"socket,host=localhost,port=2002;urp;\" --norestore --nologo --nodefault"))
time.sleep(3) # give Libreoffice time to actually start before trying to connect to it
lo_instance = pyoo.Desktop('localhost', 2002)
lo_instance.create_spreadsheet()

Expected results (seen with the Libreoffice DEB-packages from Ubuntu): A new Calc window opens up showing a spreadsheet

Actual results:
$ ./test.py
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/pyoo.py", line 1833, in _get_remote_context
    return resolver.resolve(url)
uno.NoConnectException: Connector : couldn't connect to socket (Success)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./test.py", line 10, in <module>
    lo_instance = pyoo.Desktop('localhost', 2002)
  File "/usr/local/lib/python3.6/dist-packages/pyoo.py", line 1853, in __init__
    self.remote_context = _get_remote_context(resolver, url)
  File "/usr/local/lib/python3.6/dist-packages/pyoo.py", line 1835, in _get_remote_context
    raise IOError(resolver, url)
OSError: [Errno pyuno object (com.sun.star.uno.XInterface)0x1ff9450{implementationName=com.sun.star.comp.bridge.UnoUrlResolver, supportedServices={com.sun.star.bridge.UnoUrlResolver}, supportedInterfaces={com.sun.star.lang.XServiceInfo,com.sun.star.bridge.XUnoUrlResolver,com.sun.star.lang.XTypeProvider,com.sun.star.uno.XWeak}}] uno:socket,host=localhost,port=2002;urp;StarOffice.ComponentContext

Actual results if you specify the path to the soffice binary:
lo_proc = subprocess.Popen(shlex.split("soffice --accept=\"socket,host=localhost,port=2002;urp;\" --norestore --nologo --nodefault"))

$ ./test.py
/snap/libreoffice/90/lib/libreoffice/program/soffice.bin: error while loading shared libraries: libicuuc.so.55: cannot open shared object file: No such file or directory
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/dist-packages/pyoo.py", line 1833, in _get_remote_context
    return resolver.resolve(url)
uno.NoConnectException: Connector : couldn't connect to socket (Success)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "./test.py", line 10, in <module>
    lo_instance = pyoo.Desktop('localhost', 2002)
  File "/usr/local/lib/python3.6/dist-packages/pyoo.py", line 1853, in __init__
    self.remote_context = _get_remote_context(resolver, url)
  File "/usr/local/lib/python3.6/dist-packages/pyoo.py", line 1835, in _get_remote_context
    raise IOError(resolver, url)
OSError: [Errno pyuno object (com.sun.star.uno.XInterface)0x1b11450{implementationName=com.sun.star.comp.bridge.UnoUrlResolver, supportedServices={com.sun.star.bridge.UnoUrlResolver}, supportedInterfaces={com.sun.star.lang.XServiceInfo,com.sun.star.bridge.XUnoUrlResolver,com.sun.star.lang.XTypeProvider,com.sun.star.uno.XWeak}}] uno:socket,host=localhost,port=2002;urp;StarOffice.ComponentContext

[Tim Edwards (tkedwards)]

The second error message is when specifying the exact path in the script like this:
lo_proc = subprocess.Popen(shlex.split("/snap/libreoffice/current/lib/libreoffice/program/soffice --accept=\"socket,host=localhost,port=2002;urp;\" --norestore --nologo --nodefault"))