Handle connection errors in FTW gracefully

[Raoul Snyman]

We have had quite a lot of reports with the following traceback. We should handle bad connectivity better.

See http://support.openlp.org/scp/tickets.php?id=2566

*OpenLP Bug Report*
Version: {u'full': u'2.0.5', u'version': u'2.0.5', u'build': None}

--- Details of the Exception. ---

running first time wizard

--- Exception Traceback ---
Traceback (most recent call last):
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/openlp.core.ui.firsttimeform", line 271, in onCurrentIdChanged
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/openlp.core.ui.firsttimeform", line 396, in _preWizard
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/openlp.core.ui.firsttimeform", line 353, in _getFileSize
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 86, in urlopen
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 207, in open
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 450, in open_https
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 371, in http_error
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 634, in http_error_302
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 660, in redirect_internal
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 207, in open
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/urllib", line 437, in open_https
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/httplib", line 1102, in getreply
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/httplib", line 1030, in getresponse
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/httplib", line 407, in begin
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/httplib", line 365, in _read_status
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/socket", line 430, in readline
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/ssl", line 241, in recv
File "/Users/martin/Projects/openlp/OpenLP-2.0.5/build/pyi.darwin/OpenLP/out00-PYZ.pyz/ssl", line 160, in read
IOError: [Errno socket error] [Errno 54] Connection reset by peer

--- System information ---
Platform: Darwin-14.0.0-x86_64-i386-32bit

--- Library Versions ---
Python: 2.7.3
Qt4: 4.8.3
Phonon: 4.4.0
PyQt4: 4.9.4
QtWebkit: 534.34
SQLAlchemy: 0.7.9
SQLAlchemy Migrate: 0.7.2
BeautifulSoup: 3.2.1
lxml: 2.3.2
Chardet: 2.0.1
PyEnchant: -
PySQLite: -
Mako: 0.7.2
pyUNO bridge: -

[Raoul Snyman (raoul-snyman)]

http://support.openlp.org/scp/tickets.php?id=2565

*OpenLP Bug Report*Version: {'version': '2.1.1', 'full': '2.1.1', 'build':
None}--- Details of the Exception. ---Right after the Auto Detect, the next
dialog box, popped up and then an error. This is running off a flash drive
in the portable configuration. I see a reference to C:\Python33 which is
not installed on my machine. --- Exception Traceback ---Traceback (most
recent call last): File
D:\OpenLP_Development\OpenLP_Code\2.1\openlp\core\ui\firsttimeform.py, line
72, in run File c:\Python33\lib\urllib\request.py, line 181, in
urlretrieve File c:\Python33\lib\urllib\request.py, line 156, in urlopen
File c:\Python33\lib\urllib\request.py, line 475, in open File
c:\Python33\lib\urllib\request.py, line 587, in http_response File
c:\Python33\lib\urllib\request.py, line 507, in error File
c:\Python33\lib\urllib\request.py, line 447, in _call_chain File
c:\Python33\lib\urllib\request.py, line 692, in http_error_302 File
c:\Python33\lib\urllib\request.py, line 469, in open File
c:\Python33\lib\urllib\request.py, line 487, in _open File
c:\Python33\lib\urllib\request.py, line 447, in _call_chain File
c:\Python33\lib\urllib\request.py, line 1283, in https_open File
c:\Python33\lib\urllib\request.py, line 1253, in do_open File
c:\Python33\lib\http\client.py, line 1143, in getresponse File
c:\Python33\lib\http\client.py, line 354, in begin File
c:\Python33\lib\http\client.py, line 316, in _read_status File
c:\Python33\lib\socket.py, line 297, in readinto File
c:\Python33\lib\ssl.py, line 453, in recv_into File
c:\Python33\lib\ssl.py, line 327, in readConnectionResetError: [WinError
10054] An existing connection was forcibly closed by the remote host---
System information ---Platform: Windows-7-6.1.7601-SP1--- Library Versions
---Python: 3.3.2Qt4: 4.8.5Phonon: 4.4.0PyQt4: 4.10.3QtWebkit:
534.34SQLAlchemy: 0.9.4SQLAlchemy Migrate: -BeautifulSoup: 4.3.2lxml:
3.2.3Chardet: 2.2.1PyEnchant: 1.6.6Mako: 1.0.0pyICU: 1.5pyUNO bridge: -VLC:
2.1.5 Rincewind

[Raoul Snyman (raoul-snyman)]

http://support.openlp.org/scp/tickets.php?id=2564

[Raoul Snyman (raoul-snyman)]

http://support.openlp.org/scp/tickets.php?id=2563

[Raoul Snyman (raoul-snyman)]

http://support.openlp.org/scp/tickets.php?id=2560

[Raoul Snyman (raoul-snyman)]

http://support.openlp.org/scp/tickets.php?id=2559

[Raoul Snyman (raoul-snyman)]

http://support.openlp.org/scp/tickets.php?id=2553

[Phill (phill-ridout)]

See also: https://bugs.launchpad.net/openlp/+bug/1390829

[Phill (phill-ridout)]

https://bugs.launchpad.net/openlp/+bug/1314079
https://bugs.launchpad.net/openlp/+bug/1314064