48fdb14418
The thread ID is not really useful and looks ugly. It also makes lines longer than needed, there is more useful information we can put in the log. So do away with it. Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
414 lines
16 KiB
Python
414 lines
16 KiB
Python
# UI base class
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# Copyright (C) 2002 John Goerzen
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# <jgoerzen@complete.org>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import re
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import time
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import sys
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import traceback
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import threading
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from Queue import Queue
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import offlineimap
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debugtypes = {'':'Other offlineimap related sync messages',
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'imap': 'IMAP protocol debugging',
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'maildir': 'Maildir repository debugging',
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'thread': 'Threading debugging'}
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globalui = None
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def setglobalui(newui):
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"""Set the global ui object to be used for logging"""
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global globalui
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globalui = newui
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def getglobalui():
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"""Return the current ui object"""
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global globalui
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return globalui
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class UIBase:
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def __init__(s, config, verbose = 0):
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s.verbose = verbose
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s.config = config
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s.debuglist = []
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s.debugmessages = {}
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s.debugmsglen = 50
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s.threadaccounts = {}
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s.logfile = None
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s.exc_queue = Queue()
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"""saves all occuring exceptions, so we can output them at the end"""
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################################################## UTILS
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def _msg(s, msg):
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"""Generic tool called when no other works."""
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s._log(msg)
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s._display(msg)
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def _log(s, msg):
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"""Log it to disk. Returns true if it wrote something; false
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otherwise."""
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if s.logfile:
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s.logfile.write("%s: %s\n" % (threading.currentThread().getName(),
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msg))
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return 1
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return 0
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def setlogfd(s, logfd):
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s.logfile = logfd
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logfd.write("This is %s %s\n" % \
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(offlineimap.__productname__,
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offlineimap.__version__))
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logfd.write("Python: %s\n" % sys.version)
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logfd.write("Platform: %s\n" % sys.platform)
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logfd.write("Args: %s\n" % sys.argv)
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def _display(s, msg):
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"""Display a message."""
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raise NotImplementedError
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def warn(s, msg, minor = 0):
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if minor:
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s._msg("warning: " + msg)
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else:
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s._msg("WARNING: " + msg)
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def error(self, exc, exc_traceback=None, msg=None):
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"""Log a message at severity level ERROR
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Log Exception 'exc' to error log, possibly prepended by a preceding
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error "msg", detailing at what point the error occurred.
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In debug mode, we also output the full traceback that occurred
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if one has been passed in via sys.info()[2].
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Also save the Exception to a stack that can be output at the end
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of the sync run when offlineiamp exits. It is recommended to
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always pass in exceptions if possible, so we can give the user
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the best debugging info.
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One example of such a call might be:
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ui.error(exc, sys.exc_info()[2], msg="While syncing Folder %s in "
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"repo %s")
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"""
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if msg:
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self._msg("ERROR: %s\n %s" % (msg, exc))
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else:
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self._msg("ERROR: %s" % (exc))
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if not self.debuglist:
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# only output tracebacks in debug mode
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exc_traceback = None
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# push exc on the queue for later output
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self.exc_queue.put((msg, exc, exc_traceback))
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if exc_traceback:
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self._msg(traceback.format_tb(exc_traceback))
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def registerthread(s, account):
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"""Provides a hint to UIs about which account this particular
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thread is processing."""
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if s.threadaccounts.has_key(threading.currentThread()):
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raise ValueError, "Thread %s already registered (old %s, new %s)" %\
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(threading.currentThread().getName(),
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s.getthreadaccount(s), account)
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s.threadaccounts[threading.currentThread()] = account
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s.debug('thread', "Register new thread '%s' (account '%s')" %\
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(threading.currentThread().getName(), account))
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def unregisterthread(s, thr):
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"""Recognizes a thread has exited."""
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if s.threadaccounts.has_key(thr):
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del s.threadaccounts[thr]
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s.debug('thread', "Unregister thread '%s'" % thr.getName())
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def getthreadaccount(s, thr = None):
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if not thr:
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thr = threading.currentThread()
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if s.threadaccounts.has_key(thr):
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return s.threadaccounts[thr]
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return '*Control'
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def debug(s, debugtype, msg):
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thisthread = threading.currentThread()
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if s.debugmessages.has_key(thisthread):
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s.debugmessages[thisthread].append("%s: %s" % (debugtype, msg))
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else:
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s.debugmessages[thisthread] = ["%s: %s" % (debugtype, msg)]
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while len(s.debugmessages[thisthread]) > s.debugmsglen:
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s.debugmessages[thisthread] = s.debugmessages[thisthread][1:]
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if debugtype in s.debuglist:
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if not s._log("DEBUG[%s]: %s" % (debugtype, msg)):
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s._display("DEBUG[%s]: %s" % (debugtype, msg))
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def add_debug(s, debugtype):
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global debugtypes
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if debugtype in debugtypes:
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if not debugtype in s.debuglist:
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s.debuglist.append(debugtype)
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s.debugging(debugtype)
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else:
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s.invaliddebug(debugtype)
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def debugging(s, debugtype):
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global debugtypes
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s._msg("Now debugging for %s: %s" % (debugtype, debugtypes[debugtype]))
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def invaliddebug(s, debugtype):
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s.warn("Invalid debug type: %s" % debugtype)
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def locked(s):
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raise Exception, "Another OfflineIMAP is running with the same metadatadir; exiting."
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def getnicename(s, object):
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"""Return the type of a repository or Folder as string
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(IMAP, Gmail, Maildir, etc...)"""
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prelimname = object.__class__.__name__.split('.')[-1]
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# Strip off extra stuff.
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return re.sub('(Folder|Repository)', '', prelimname)
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def isusable(s):
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"""Returns true if this UI object is usable in the current
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environment. For instance, an X GUI would return true if it's
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being run in X with a valid DISPLAY setting, and false otherwise."""
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return 1
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################################################## INPUT
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def getpass(s, accountname, config, errmsg = None):
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raise NotImplementedError
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def folderlist(s, list):
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return ', '.join(["%s[%s]" % (s.getnicename(x), x.getname()) for x in list])
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################################################## WARNINGS
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def msgtoreadonly(s, destfolder, uid, content, flags):
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if not (s.config.has_option('general', 'ignore-readonly') and s.config.getboolean("general", "ignore-readonly")):
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s.warn("Attempted to synchronize message %d to folder %s[%s], but that folder is read-only. The message will not be copied to that folder." % \
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(uid, s.getnicename(destfolder), destfolder.getname()))
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def flagstoreadonly(s, destfolder, uidlist, flags):
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if not (s.config.has_option('general', 'ignore-readonly') and s.config.getboolean("general", "ignore-readonly")):
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s.warn("Attempted to modify flags for messages %s in folder %s[%s], but that folder is read-only. No flags have been modified for that message." % \
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(str(uidlist), s.getnicename(destfolder), destfolder.getname()))
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def deletereadonly(s, destfolder, uidlist):
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if not (s.config.has_option('general', 'ignore-readonly') and s.config.getboolean("general", "ignore-readonly")):
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s.warn("Attempted to delete messages %s in folder %s[%s], but that folder is read-only. No messages have been deleted in that folder." % \
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(str(uidlist), s.getnicename(destfolder), destfolder.getname()))
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################################################## MESSAGES
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def init_banner(s):
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"""Called when the UI starts. Must be called before any other UI
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call except isusable(). Displays the copyright banner. This is
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where the UI should do its setup -- TK, for instance, would
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create the application window here."""
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if s.verbose >= 0:
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s._msg(offlineimap.banner)
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def connecting(s, hostname, port):
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if s.verbose < 0:
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return
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if hostname == None:
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hostname = ''
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if port != None:
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port = ":%s" % str(port)
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displaystr = ' to %s%s.' % (hostname, port)
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if hostname == '' and port == None:
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displaystr = '.'
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s._msg("Establishing connection" + displaystr)
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def acct(s, accountname):
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if s.verbose >= 0:
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s._msg("***** Processing account %s" % accountname)
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def acctdone(s, accountname):
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if s.verbose >= 0:
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s._msg("***** Finished processing account " + accountname)
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def syncfolders(s, srcrepos, destrepos):
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if s.verbose >= 0:
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s._msg("Copying folder structure from %s to %s" % \
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(s.getnicename(srcrepos), s.getnicename(destrepos)))
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############################## Folder syncing
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def syncingfolder(s, srcrepos, srcfolder, destrepos, destfolder):
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"""Called when a folder sync operation is started."""
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if s.verbose >= 0:
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s._msg("Syncing %s: %s -> %s" % (srcfolder.getname(),
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s.getnicename(srcrepos),
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s.getnicename(destrepos)))
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def skippingfolder(s, folder):
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"""Called when a folder sync operation is started."""
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if s.verbose >= 0:
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s._msg("Skipping %s (not changed)" % folder.getname())
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def validityproblem(s, folder):
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s.warn("UID validity problem for folder %s (repo %s) (saved %d; got %d); skipping it" % \
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(folder.getname(), folder.getrepository().getname(),
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folder.getsaveduidvalidity(), folder.getuidvalidity()))
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def loadmessagelist(s, repos, folder):
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if s.verbose > 0:
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s._msg("Loading message list for %s[%s]" % (s.getnicename(repos),
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folder.getname()))
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def messagelistloaded(s, repos, folder, count):
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if s.verbose > 0:
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s._msg("Message list for %s[%s] loaded: %d messages" % \
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(s.getnicename(repos), folder.getname(), count))
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############################## Message syncing
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def syncingmessages(s, sr, sf, dr, df):
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if s.verbose > 0:
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s._msg("Syncing messages %s[%s] -> %s[%s]" % (s.getnicename(sr),
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sf.getname(),
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s.getnicename(dr),
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df.getname()))
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def copyingmessage(self, uid, src, destfolder):
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"""Output a log line stating which message we copy"""
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if self.verbose >= 0:
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self._msg("Copy message %d %s[%s] -> %s[%s]" % \
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(uid, self.getnicename(src), src,
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self.getnicename(destfolder), destfolder))
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def deletingmessage(s, uid, destlist):
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if s.verbose >= 0:
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ds = s.folderlist(destlist)
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s._msg("Deleting message %d in %s" % (uid, ds))
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def deletingmessages(s, uidlist, destlist):
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if s.verbose >= 0:
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ds = s.folderlist(destlist)
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s._msg("Deleting %d messages (%s) in %s" % \
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(len(uidlist),
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offlineimap.imaputil.uid_sequence(uidlist),
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ds))
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def addingflags(s, uidlist, flags, dest):
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if s.verbose >= 0:
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s._msg("Adding flag %s to %d messages on %s" % \
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(", ".join(flags), len(uidlist), dest))
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def deletingflags(s, uidlist, flags, dest):
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if s.verbose >= 0:
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s._msg("Deleting flag %s from %d messages on %s" % \
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(", ".join(flags), len(uidlist), dest))
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################################################## Threads
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def getThreadDebugLog(s, thread):
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if s.debugmessages.has_key(thread):
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message = "\nLast %d debug messages logged for %s prior to exception:\n"\
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% (len(s.debugmessages[thread]), thread.getName())
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message += "\n".join(s.debugmessages[thread])
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else:
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message = "\nNo debug messages were logged for %s." % \
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thread.getName()
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return message
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def delThreadDebugLog(s, thread):
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if s.debugmessages.has_key(thread):
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del s.debugmessages[thread]
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def getThreadExceptionString(s, thread):
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message = "Thread '%s' terminated with exception:\n%s" % \
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(thread.getName(), thread.getExitStackTrace())
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message += "\n" + s.getThreadDebugLog(thread)
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return message
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def threadException(s, thread):
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"""Called when a thread has terminated with an exception.
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The argument is the ExitNotifyThread that has so terminated."""
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s._msg(s.getThreadExceptionString(thread))
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s.delThreadDebugLog(thread)
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s.terminate(100)
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def terminate(self, exitstatus = 0, errortitle = None, errormsg = None):
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"""Called to terminate the application."""
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#print any exceptions that have occurred over the run
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if not self.exc_queue.empty():
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self._msg("\nERROR: Exceptions occurred during the run!")
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while not self.exc_queue.empty():
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msg, exc, exc_traceback = self.exc_queue.get()
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if msg:
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self._msg("ERROR: %s\n %s" % (msg, exc))
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else:
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self._msg("ERROR: %s" % (exc))
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if exc_traceback:
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self._msg("\nTraceback:\n%s" %"".join(
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traceback.format_tb(exc_traceback)))
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if errormsg and errortitle:
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sys.stderr.write('ERROR: %s\n\n%s\n'%(errortitle, errormsg))
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elif errormsg:
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sys.stderr.write('%s\n' % errormsg)
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sys.exit(exitstatus)
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def threadExited(s, thread):
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"""Called when a thread has exited normally. Many UIs will
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just ignore this."""
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s.delThreadDebugLog(thread)
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s.unregisterthread(thread)
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################################################## Hooks
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def callhook(s, msg):
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if s.verbose >= 0:
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s._msg(msg)
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################################################## Other
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def sleep(s, sleepsecs, account):
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"""This function does not actually output anything, but handles
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the overall sleep, dealing with updates as necessary. It will,
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however, call sleeping() which DOES output something.
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:returns: 0/False if timeout expired, 1/2/True if there is a
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request to cancel the timer.
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"""
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abortsleep = False
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while sleepsecs > 0 and not abortsleep:
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if account.get_abort_event():
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abortsleep = True
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else:
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abortsleep = s.sleeping(10, sleepsecs)
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sleepsecs -= 10
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s.sleeping(0, 0) # Done sleeping.
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return abortsleep
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def sleeping(s, sleepsecs, remainingsecs):
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"""Sleep for sleepsecs, display remainingsecs to go.
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Does nothing if sleepsecs <= 0.
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Display a message on the screen every 10 seconds.
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This implementation in UIBase does not support this, but some
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implementations return 0 for successful sleep and 1 for an
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'abort', ie a request to sync immediately.
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"""
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if sleepsecs > 0:
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if remainingsecs % 10 == 0:
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s._msg("Next refresh in %d seconds" % remainingsecs)
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time.sleep(sleepsecs)
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return 0
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