def bad_fetch(nzo, url, msg='', content=False):
    """ Create History entry for failed URL Fetch
        msg : message to be logged
        retry : make retry link in history
        content : report in history that cause is a bad NZB file
    """
    if msg:
        msg = unicoder(msg)
    else:
        msg = ''

    nzo.status = Status.FAILED

    if url:
        nzo.filename = url
        nzo.final_name = url.strip()

    if content:
        # Bad content
        msg = T('Unusable NZB file')
    else:
        # Failed fetch
        msg = T('URL Fetching failed; %s') % msg

    nzo.fail_msg = msg

    growler.send_notification(T('URL Fetching failed; %s') % '', '%s\n%s' % (msg, url), 'other')
    if cfg.email_endjob() > 0:
        emailer.badfetch_mail(msg, url)

    NzbQueue.do.remove(nzo.nzo_id, add_to_history=True)

def parring(nzo, workdir):
    """ Perform par processing. Returns: (par_error, re_add)
    """
    filename = nzo.final_name
    growler.send_notification(T('Post-processing'), nzo.final_name, 'pp')
    logging.info('Par2 check starting on %s', filename)

    ## Collect the par files
    if nzo.partable:
        par_table = nzo.partable.copy()
    else:
        par_table = {}
    repair_sets = par_table.keys()

    re_add = False
    par_error = False

    if repair_sets:

        for set_ in repair_sets:
            logging.info("Running repair on set %s", set_)
            parfile_nzf = par_table[set_]
            need_re_add, res = par2_repair(parfile_nzf, nzo, workdir, set_)
            if need_re_add:
                re_add = True
            else:
                par_error = par_error or not res

        if re_add:
            logging.info('Readded %s to queue', filename)
            nzo.priority = REPAIR_PRIORITY
            sabnzbd.nzbqueue.add_nzo(nzo)
            sabnzbd.downloader.Downloader.do.resume_from_postproc()

        logging.info('Par2 check finished on %s', filename)

    if (par_error and not re_add) or not repair_sets:
        # See if alternative SFV check is possible
        if cfg.sfv_check():
            sfvs = globber(workdir, '*.sfv')
        else:
            sfvs = None
        if sfvs:
            par_error = False
            nzo.set_unpack_info('Repair', T('Trying SFV verification'))
            for sfv in sfvs:
                if not sfv_check(sfv):
                    nzo.set_unpack_info('Repair', T('Some files failed to verify against "%s"') % unicoder(os.path.basename(sfv)))
                    par_error = True
            if not par_error:
                nzo.set_unpack_info('Repair', T('Verified successfully using SFV files'))
        elif not repair_sets:
            logging.info("No par2 sets for %s", filename)
            nzo.set_unpack_info('Repair', T('[%s] No par2 sets') % unicoder(filename))

    if not par_error:
        verified_flag_file(workdir, create=True)
    return par_error, re_add

 def versionUpdate(self):
     try:
         if sabnzbd.NEW_VERSION and self.version_notify:
             #logging.info("[osx] New Version : %s" % (sabnzbd.NEW_VERSION))
             new_release, new_rel_url = sabnzbd.NEW_VERSION.split(';')
             growler.send_notification("SABnzbd","%s : %s" % (T('New release available'), new_release), 'other')
             self.version_notify = 0
     except :
         logging.info("[osx] versionUpdate Exception %s" % (sys.exc_info()[0]))

def parring(nzo, workdir):
    """ Perform par processing. Returns: (par_error, re_add)
    """
    assert isinstance(nzo, sabnzbd.nzbstuff.NzbObject)
    filename = nzo.final_name
    growler.send_notification(T('Post-processing'), nzo.final_name, 'pp')
    logging.info('Par2 check starting on %s', filename)

    ## Get verification status of sets
    verified = sabnzbd.load_data(VERIFIED_FILE, nzo.workpath, remove=False) or {}

    ## Collect the par files
    if nzo.partable:
        par_table = nzo.partable.copy()
    else:
        par_table = {}
    repair_sets = par_table.keys()

    re_add = False
    par_error = False
    single = len(repair_sets) == 1

    if repair_sets:
        for setname in repair_sets:
            if cfg.ignore_samples() > 0 and 'sample' in setname.lower():
                continue
            if not verified.get(setname, False):
                logging.info("Running repair on set %s", setname)
                parfile_nzf = par_table[setname]
                if os.path.exists(os.path.join(nzo.downpath, parfile_nzf.filename)) or parfile_nzf.extrapars:
                    need_re_add, res = par2_repair(parfile_nzf, nzo, workdir, setname, single=single)
                    re_add = re_add or need_re_add
                    if not res and not need_re_add and cfg.sfv_check():
                        res = try_sfv_check(nzo, workdir, setname)
                    verified[setname] = res
                else:
                    continue
                par_error = par_error or not res
    else:
        logging.info("No par2 sets for %s", filename)
        nzo.set_unpack_info('Repair', T('[%s] No par2 sets') % unicoder(filename))
        if cfg.sfv_check():
            par_error = not try_sfv_check(nzo, workdir, '')
            verified[''] = not par_error

    if re_add:
        logging.info('Readded %s to queue', filename)
        if nzo.priority != TOP_PRIORITY:
            nzo.priority = REPAIR_PRIORITY
        sabnzbd.nzbqueue.add_nzo(nzo)
        sabnzbd.downloader.Downloader.do.resume_from_postproc()

    sabnzbd.save_data(verified, VERIFIED_FILE, nzo.workpath)

    logging.info('Par2 check finished on %s', filename)
    return par_error, re_add

    def add(self, nzo, save=True, quiet=False):
        assert isinstance(nzo, NzbObject)
        if not nzo.nzo_id:
            nzo.nzo_id = sabnzbd.get_new_id('nzo', nzo.workpath, self.__nzo_table)

        # If no files are to be downloaded anymore, send to postproc
        if not nzo.files and not nzo.futuretype:
            self.end_job(nzo)
            return ''

        # Reset try_lists
        nzo.reset_try_list()
        self.reset_try_list()

        if nzo.nzo_id:
            nzo.deleted = False
            priority = nzo.priority
            if sabnzbd.scheduler.analyse(False, priority):
                nzo.status = Status.PAUSED

            self.__nzo_table[nzo.nzo_id] = nzo
            if priority > HIGH_PRIORITY:
                # Top and repair priority items are added to the top of the queue
                self.__nzo_list.insert(0, nzo)
            elif priority == LOW_PRIORITY:
                self.__nzo_list.append(nzo)
            else:
                # for high priority we need to add the item at the bottom
                # of any other high priority items above the normal priority
                # for normal priority we need to add the item at the bottom
                # of the normal priority items above the low priority
                if self.__nzo_list:
                    pos = 0
                    added = False
                    for position in self.__nzo_list:
                        if position.priority < priority:
                            self.__nzo_list.insert(pos, nzo)
                            added = True
                            break
                        pos += 1
                    if not added:
                        # if there are no other items classed as a lower priority
                        # then it will be added to the bottom of the queue
                        self.__nzo_list.append(nzo)
                else:
                    # if the queue is empty then simple append the item to the bottom
                    self.__nzo_list.append(nzo)
            if save:
                self.save(nzo)

            if not (quiet or nzo.status in ('Fetching',)):
                growler.send_notification(T('NZB added to queue'), nzo.filename, 'download')

        if cfg.auto_sort():
            self.sort_by_avg_age()
        return nzo.nzo_id

 def pause(self, save=True):
     """ Pause the downloader, optionally saving admin """
     if not self.paused:
         self.paused = True
         logging.info("Pausing")
         growler.send_notification("SABnzbd", T('Paused'), 'download')
         if self.is_paused():
             BPSMeter.do.reset()
         if cfg.autodisconnect():
             self.disconnect()
         if save:
             sabnzbd.save_state()

    def run(self):
        """ Process the queue (including waits and retries) """
        from sabnzbd.nzbqueue import NzbQueue
        self.shutdown = False
        while not self.shutdown:
            time.sleep(5)
            (msgid, nzo) = self.queue.get()
            if self.shutdown or not msgid:
                break
            if nzo.wait and nzo.wait > time.time():
                self.grab(msgid, nzo)
                continue
            logging.debug("Popping msgid %s", msgid)

            filename, data, newzbin_cat, nzo_info = _grabnzb(msgid)
            if filename and data:
                filename = name_fixer(filename)

                pp = nzo.pp
                script = nzo.script
                cat = nzo.cat
                if cat == '*' or not cat:
                    cat = cat_convert(newzbin_cat)

                priority = nzo.priority
                nzbname = nzo.custom_name

                cat, pp, script, priority = cat_to_opts(cat, pp, script, priority)

                try:
                    sabnzbd.nzbqueue.insert_future_nzo(nzo, filename, msgid, data, pp=pp, script=script, cat=cat, priority=priority, nzbname=nzbname, nzo_info=nzo_info)
                    nzo.url = format_source_url(str(msgid))
                except:
                    logging.error(Ta('Failed to update newzbin job %s'), msgid)
                    logging.info("Traceback: ", exc_info = True)

                    NzbQueue.do.remove(nzo.nzo_id, False)
                msgid = None
            else:
                if filename:
                    self.grab(msgid, nzo, float(filename))
                else:
                    # Fatal error, give up on this one
                    bad_fetch(nzo, msgid, msg=nzo_info, retry=True)
                msgid = None

            if msgid:
                growler.send_notification(T('NZB added to queue'), filename, 'download')

        logging.debug('Stopping MSGIDGrabber')

 def applicationShouldTerminate_(self, sender):
     logging.info('[osx] application terminating')
     self.setMenuTitle("\n\n%s\n"% (T('Stopping...')))
     self.status_item.setHighlightMode_(NO)
     self.osx_icon = False
     logging.info('[osx] application stopping daemon')
     sabnzbd.halt()
     cherrypy.engine.exit()
     sabnzbd.SABSTOP = True
     try:
         growler.send_notification('SABnzbd', T('SABnzbd shutdown finished'), growler.NOTIFICATION['other'])
     except AttributeError:
         # Fails for the OSX binary
         pass
     logging.info('Leaving SABnzbd')
     sys.stderr.flush()
     sys.stdout.flush()
     return NSTerminateNow

#.........这里部分代码省略.........
                else:
                    nzo.set_unpack_info('Script', T('Ran %s') % unicoder(script), unique=True)
            else:
                script = ""
                script_line = ""
                script_ret = 0

        ## Email the results
        if (not nzb_list) and cfg.email_endjob():
            if (cfg.email_endjob() == 1) or (cfg.email_endjob() == 2 and (unpack_error or par_error)):
                emailer.endjob(dirname, msgid, cat, all_ok, workdir_complete, nzo.bytes_downloaded,
                               nzo.fail_msg, nzo.unpack_info, script, TRANS(script_log), script_ret)

        if script_output:
            # Can do this only now, otherwise it would show up in the email
            if script_ret:
                script_ret = 'Exit(%s) ' % script_ret
            else:
                script_ret = ''
            if script_line:
                nzo.set_unpack_info('Script',
                                    u'%s%s <a href="./scriptlog?name=%s">(%s)</a>' % (script_ret, unicoder(script_line), urllib.quote(script_output),
                                     T('More')), unique=True)
            else:
                nzo.set_unpack_info('Script',
                                    u'%s<a href="./scriptlog?name=%s">%s</a>' % (script_ret, urllib.quote(script_output),
                                    T('View script output')), unique=True)

        ## Cleanup again, including NZB files
        if all_ok:
            cleanup_list(workdir_complete, False)

        ## Remove newzbin bookmark, if any
        if msgid and all_ok:
            Bookmarks.do.del_bookmark(msgid)
        elif all_ok and isinstance(nzo.url, str):
            sabnzbd.proxy_rm_bookmark(nzo.url)

        ## Force error for empty result
        all_ok = all_ok and not empty

        ## Show final status in history
        if all_ok:
            growler.send_notification(T('Download Completed'), filename, 'complete')
            nzo.status = Status.COMPLETED
        else:
            growler.send_notification(T('Download Failed'), filename, 'complete')
            nzo.status = Status.FAILED

    except:
        logging.error(Ta('Post Processing Failed for %s (%s)'), filename, crash_msg)
        if not crash_msg:
            logging.info("Traceback: ", exc_info = True)
            crash_msg = T('see logfile')
        nzo.fail_msg = T('PostProcessing was aborted (%s)') % unicoder(crash_msg)
        growler.send_notification(T('Download Failed'), filename, 'complete')
        nzo.status = Status.FAILED
        par_error = True
        all_ok = False
        if cfg.email_endjob():
            emailer.endjob(dirname, msgid, cat, all_ok, workdir_complete, nzo.bytes_downloaded,
                           nzo.fail_msg, nzo.unpack_info, '', '', 0)


    if all_ok:
        # If the folder only contains one file OR folder, have that as the path
        # Be aware that series/generic/date sorting may move a single file into a folder containing other files
        workdir_complete = one_file_or_folder(workdir_complete)
        workdir_complete = os.path.normpath(workdir_complete)

    # Log the overall time taken for postprocessing
    postproc_time = int(time.time() - start)

    # Create the history DB instance
    history_db = database.get_history_handle()
    # Add the nzo to the database. Only the path, script and time taken is passed
    # Other information is obtained from the nzo
    history_db.add_history_db(nzo, workdir_complete, nzo.downpath, postproc_time, script_log, script_line)
    # The connection is only used once, so close it here
    history_db.close()

    ## Clean up the NZO
    try:
        logging.info('Cleaning up %s (keep_basic=%s)', filename, str(not all_ok))
        sabnzbd.nzbqueue.NzbQueue.do.cleanup_nzo(nzo, keep_basic=not all_ok)
    except:
        logging.error(Ta('Cleanup of %s failed.'), nzo.final_name)
        logging.info("Traceback: ", exc_info = True)

    ## Remove download folder
    if all_ok:
        try:
            if os.path.exists(workdir):
                logging.debug('Removing workdir %s', workdir)
                remove_all(workdir, recursive=True)
        except:
            logging.error(Ta('Error removing workdir (%s)'), workdir)
            logging.info("Traceback: ", exc_info = True)

    return True

def bad_fetch(nzo, url, msg='', retry=False, content=False):
    """ Create History entry for failed URL Fetch
        msg : message to be logged
        retry : make retry link in histort
        content : report in history that cause is a bad NZB file
    """
    if msg:
        msg = unicoder(msg)
    else:
        msg = ''

    pp = nzo.pp
    if pp is None:
        pp = ''
    else:
        pp = '&pp=%s' % str(pp)
    cat = nzo.cat
    if cat:
        cat = '&cat=%s' % urllib.quote(cat)
    else:
        cat = ''
    script = nzo.script
    if script:
        script = '&script=%s' % urllib.quote(script)
    else:
        script = ''

    nzo.status = Status.FAILED


    if url:
        nzo.filename = url
        nzo.final_name = url.strip()

    if content:
        # Bad content
        msg = T('Unusable NZB file')
    else:
        # Failed fetch
        msg = ' (' + msg + ')'

    if retry:
        nzbname = nzo.custom_name
        if nzbname:
            nzbname = '&nzbname=%s' % urllib.quote(nzbname)
        else:
            nzbname = ''
        text = T('URL Fetching failed; %s') + ', <a href="./retry?session=%s&url=%s&job=%s%s%s%s%s">' + T('Try again') + '</a>'
        parms = (msg, cfg.api_key(), urllib.quote(url), nzo.nzo_id, pp, cat, script, nzbname)
        nzo.fail_msg = text % parms
    else:
        nzo.fail_msg = msg

    if isinstance(url, int) or url.isdigit():
        url = 'Newzbin #%s' % url
    growler.send_notification(T('URL Fetching failed; %s') % '', '%s\n%s' % (msg, url), 'other')
    if cfg.email_endjob() > 0:
        #import sabnzbd.emailer
        sabnzbd.emailer.badfetch_mail(msg, url)

    from sabnzbd.nzbqueue import NzbQueue
    assert isinstance(NzbQueue.do, NzbQueue)
    NzbQueue.do.remove(nzo.nzo_id, add_to_history=True)

 def stop(self):
     self.shutdown = True
     growler.send_notification("SABnzbd",T('Shutting down'), 'startup')

#.........这里部分代码省略.........
                    "Script",
                    u'%s%s <a href="./scriptlog?name=%s">(%s)</a>'
                    % (script_ret, unicoder(script_line), urllib.quote(script_output), T("More")),
                    unique=True,
                )
            else:
                nzo.set_unpack_info(
                    "Script",
                    u'%s<a href="./scriptlog?name=%s">%s</a>'
                    % (script_ret, urllib.quote(script_output), T("View script output")),
                    unique=True,
                )

        # Cleanup again, including NZB files
        if all_ok:
            cleanup_list(workdir_complete, False)

        # Force error for empty result
        all_ok = all_ok and not empty

        # Update indexer with results
        if cfg.rating_enable():
            if nzo.encrypted > 0:
                Rating.do.update_auto_flag(nzo.nzo_id, Rating.FLAG_ENCRYPTED)
            if empty:
                hosts = map(lambda s: s.host, sabnzbd.downloader.Downloader.do.nzo_servers(nzo))
                if not hosts:
                    hosts = [None]
                for host in hosts:
                    Rating.do.update_auto_flag(nzo.nzo_id, Rating.FLAG_EXPIRED, host)

        # Show final status in history
        if all_ok:
            growler.send_notification(T("Download Completed"), filename, "complete")
            nzo.status = Status.COMPLETED
        else:
            growler.send_notification(T("Download Failed"), filename, "failed")
            nzo.status = Status.FAILED

    except:
        logging.error(T("Post Processing Failed for %s (%s)"), filename, crash_msg)
        if not crash_msg:
            logging.info("Traceback: ", exc_info=True)
            crash_msg = T("see logfile")
        nzo.fail_msg = T("PostProcessing was aborted (%s)") % unicoder(crash_msg)
        growler.send_notification(T("Download Failed"), filename, "failed")
        nzo.status = Status.FAILED
        par_error = True
        all_ok = False
        if cfg.email_endjob():
            emailer.endjob(
                dirname,
                cat,
                all_ok,
                clip_path(workdir_complete),
                nzo.bytes_downloaded,
                nzo.fail_msg,
                nzo.unpack_info,
                "",
                "",
                0,
            )

    if all_ok:
        # If the folder only contains one file OR folder, have that as the path
        # Be aware that series/generic/date sorting may move a single file into a folder containing other files

 def resume(self):
     logging.info("Resuming")
     if self.paused:
         growler.send_notification("SABnzbd", T('Resuming'), 'download')
     self.paused = False

 def stop(self):
     self.shutdown = True
     growler.send_notification("SABnzbd", T("Shutting down"), "startup")