def logSkippedPars(nzb):
""" Print a message describing the summary of all skipped par files """
# Tally the total mb skipped
skippedParMB = 0
actualSkippedParMB = 0
parFilenames = []
skippedParsDict = {}
skippedPars = nzb.skippedParFiles[:]
skippedPars.sort(lambda x, y: cmp(x.filename, y.filename))
for nzbFile in skippedPars:
parFilenames.append(nzbFile.filename)
skippedParsDict[nzbFile.filename] = nzbFile
skippedParMB += nzbFile.totalBytes
for nzbSegment in nzbFile.dequeuedSegments:
actualSkippedParMB += nzbSegment.bytes
# Identify the par groups
parGroups, parGroupOrder = findPar2Groups(parFilenames)
if actualSkippedParMB > 0:
info('Skipped pars: %i files, %s (actual skipped: %s)' % \
(len(nzb.skippedParFiles), prettySize(skippedParMB),
prettySize(actualSkippedParMB)))
# Further summarize the par group statistics
for key in parGroupOrder:
parFilenames = parGroups[key]
skippedGroupMB = 0
skippedGroupBlocks = 0
for parFilename in parFilenames:
skippedGroupBlocks += getParSize(parFilename)
nzbFile = skippedParsDict[parFilename]
skippedGroupMB += nzbFile.totalBytes
# Don't duplicate the extra stats when there's only one par group
groupStats = ''
if len(parGroups) > 1:
groupStats = '%i files, %s, ' % (len(parFilenames),
prettySize(skippedGroupMB))
if len(parFilenames) == 1:
label = parFilenames[0]
elif len(parFilenames) == 2:
label = '%s,\n %s' % (parFilenames[0], parFilenames[-1])
elif len(parFilenames) > 2:
label = '%s ->\n %s' % (parFilenames[0], parFilenames[-1])
info(' %s (%s%s %s)' % (label, groupStats, skippedGroupBlocks,
getParRecoveryName(nzbFile.parType)))
def logSkippedPars(nzb):
""" Print a message describing the summary of all skipped par files """
# Tally the total mb skipped
skippedParMB = 0
actualSkippedParMB = 0
parFilenames = []
skippedParsDict = {}
skippedPars = nzb.skippedParFiles[:]
skippedPars.sort(lambda x, y: cmp(x.filename, y.filename))
for nzbFile in skippedPars:
parFilenames.append(nzbFile.filename)
skippedParsDict[nzbFile.filename] = nzbFile
skippedParMB += nzbFile.totalBytes
for nzbSegment in nzbFile.dequeuedSegments:
actualSkippedParMB += nzbSegment.bytes
# Identify the par groups
parGroups, parGroupOrder = findPar2Groups(parFilenames)
if actualSkippedParMB > 0:
info('Skipped pars: %i files, %s (actual skipped: %s)' % \
(len(nzb.skippedParFiles), prettySize(skippedParMB),
prettySize(actualSkippedParMB)))
# Further summarize the par group statistics
for key in parGroupOrder:
parFilenames = parGroups[key]
skippedGroupMB = 0
skippedGroupBlocks = 0
for parFilename in parFilenames:
skippedGroupBlocks += getParSize(parFilename)
nzbFile = skippedParsDict[parFilename]
skippedGroupMB += nzbFile.totalBytes
# Don't duplicate the extra stats when there's only one par group
groupStats = ''
if len(parGroups) > 1:
groupStats = '%i files, %s, ' % (len(parFilenames),
prettySize(skippedGroupMB))
if len(parFilenames) == 1:
label = parFilenames[0]
elif len(parFilenames) == 2:
label = '%s,\n %s' % (parFilenames[0], parFilenames[-1])
elif len(parFilenames) > 2:
label = '%s ->\n %s' % (parFilenames[0], parFilenames[-1])
info(' %s (%s%s %s)' % (label, groupStats, skippedGroupBlocks,
getParRecoveryName(nzbFile.parType)))
def smartDequeue(segment, readOnlyQueue=False, verbose=False):
""" This function is called after downloading the first segment of every nzbFile
It determines whether or not the segment's parent nzbFile is part of a par archive. If
it is and is also an 'extra' par file ('extra' pars are pars other than the first
par. The first par nzbFile should contain only verification data and little or no
recovery data), this function will determine whether or not the rest of the nzbFile
segments need to be downloaded (dequeueing them from the NZBSegmentQueue when
necessary, unless the readOnlyQueue is True) """
if not segment.isFirstSegment():
raise FatalError("smartDequeue on number > 1")
if segment.nzbFile.filename is None:
# We can't do anything 'smart' without the filename
return
identifyPar(segment.nzbFile)
# NOTE: pars that aren't extra pars will need to use this block of code when we start
# looking for requeue cases (branches/smartpar-requeue). And don't allow them to fall
# through to the isSkippedPar block
# if not segment.nzbFile.isPar:
if not segment.nzbFile.isPar or not segment.nzbFile.isExtraPar:
return
nzb = segment.nzbFile.nzb
isQueuedRecoveryPar = False
if (
nzb.isParRecovery
and toUnicode(nzb.parPrefix) in toUnicode(segment.nzbFile.subject)
and nzb.neededBlocks - nzb.queuedBlocks > 0
):
isQueuedRecoveryPar = True
# readOnlyQueue can be True here.
nzb.queuedBlocks += getParSize(segment.nzbFile.filename)
if not isQueuedRecoveryPar and len(segment.nzbFile.nzbSegments) == 1:
# Nothing to actually dequeue (we just downloaded the only segment). If we're in
# parRecovery mode, fall through so we print the 'queued' message as if we
# magically intended this 'queueing' to happen
return
size = segment.nzbFile.totalBytes / 1024 / 1024
parTypeName = getParName(segment.nzbFile.parType)
if not isQueuedRecoveryPar:
# Extra par2 -- dequeue the rest of its segments
dequeueSegments = segment.nzbFile.todoNzbSegments.copy()
dequeueSegments.remove(segment)
dequeuedCount = 0
if not readOnlyQueue:
dequeued = Hellanzb.queue.dequeueSegments(dequeueSegments)
dequeuedCount = len(dequeued)
for dequeuedSegment in dequeued:
segment.nzbFile.nzb.totalSkippedBytes += dequeuedSegment.bytes
if dequeuedCount == 0:
details = "(nothing in the NZBSegmentQueue to dequeue)"
debug("smartDequeue: Would have skipped %s: %s" % (details, segment.nzbFile.filename))
else:
segment.nzbFile.nzb.totalSkippedBytes += segment.nzbFile.totalBytes
# FIXME: It would be nice to take an account of how many actual bytes we just
# skipped, for printing out at the end of the download
# Always print the skipped message if called from segmentsNeedDownload
# (readOnlyQueue). Don't bother printing it if we didn't actually dequeue anything
if readOnlyQueue or not dequeuedCount == 0:
if verbose:
info("Skipped %s: %s (%iMB)" % (parTypeName, segment.nzbFile.filename, size))
elif not len(segment.nzbFile.nzb.skippedParFiles):
info("Skipping pars.. (Skipped %s: %s (%iMB))" % (parTypeName, segment.nzbFile.filename, size))
# Only consider the nzbFile as skipped when there were actually segments
# dequeued, or if readOnlyQueue mode
segment.nzbFile.isSkippedPar = True
segment.nzbFile.nzb.skippedParFiles.append(segment.nzbFile)
else:
info(
"Queued %s: %s (%iMB, %i %s)"
% (
parTypeName,
segment.nzbFile.filename,
size,
getParSize(segment.nzbFile.filename),
getParRecoveryName(segment.nzbFile.parType),
)
)
def smartDequeue(segment, readOnlyQueue=False, verbose=False):
""" This function is called after downloading the first segment of every nzbFile
It determines whether or not the segment's parent nzbFile is part of a par archive. If
it is and is also an 'extra' par file ('extra' pars are pars other than the first
par. The first par nzbFile should contain only verification data and little or no
recovery data), this function will determine whether or not the rest of the nzbFile
segments need to be downloaded (dequeueing them from the NZBSegmentQueue when
necessary, unless the readOnlyQueue is True) """
if not segment.isFirstSegment():
raise FatalError('smartDequeue on number > 1')
if segment.nzbFile.filename is None:
# We can't do anything 'smart' without the filename
return
identifyPar(segment.nzbFile)
# NOTE: pars that aren't extra pars will need to use this block of code when we start
# looking for requeue cases (branches/smartpar-requeue). And don't allow them to fall
# through to the isSkippedPar block
#if not segment.nzbFile.isPar:
if not segment.nzbFile.isPar or not segment.nzbFile.isExtraPar:
return
nzb = segment.nzbFile.nzb
isQueuedRecoveryPar = False
if nzb.isParRecovery and \
toUnicode(nzb.parPrefix) in toUnicode(segment.nzbFile.subject) and \
nzb.neededBlocks - nzb.queuedBlocks > 0:
isQueuedRecoveryPar = True
# readOnlyQueue can be True here.
nzb.queuedBlocks += getParSize(segment.nzbFile.filename)
if not isQueuedRecoveryPar and len(segment.nzbFile.nzbSegments) == 1:
# Nothing to actually dequeue (we just downloaded the only segment). If we're in
# parRecovery mode, fall through so we print the 'queued' message as if we
# magically intended this 'queueing' to happen
return
size = segment.nzbFile.totalBytes / 1024 / 1024
parTypeName = getParName(segment.nzbFile.parType)
if not isQueuedRecoveryPar:
# Extra par2 -- dequeue the rest of its segments
dequeueSegments = segment.nzbFile.todoNzbSegments.copy()
dequeueSegments.remove(segment)
dequeuedCount = 0
if not readOnlyQueue:
dequeued = Hellanzb.queue.dequeueSegments(dequeueSegments)
dequeuedCount = len(dequeued)
for dequeuedSegment in dequeued:
segment.nzbFile.nzb.totalSkippedBytes += dequeuedSegment.bytes
if dequeuedCount == 0:
details = '(nothing in the NZBSegmentQueue to dequeue)'
debug('smartDequeue: Would have skipped %s: %s' % \
(details, segment.nzbFile.filename))
else:
segment.nzbFile.nzb.totalSkippedBytes += segment.nzbFile.totalBytes
# FIXME: It would be nice to take an account of how many actual bytes we just
# skipped, for printing out at the end of the download
# Always print the skipped message if called from segmentsNeedDownload
# (readOnlyQueue). Don't bother printing it if we didn't actually dequeue anything
if readOnlyQueue or not dequeuedCount == 0:
if verbose:
info('Skipped %s: %s (%iMB)' %
(parTypeName, segment.nzbFile.filename, size))
elif not len(segment.nzbFile.nzb.skippedParFiles):
info('Skipping pars.. (Skipped %s: %s (%iMB))' % \
(parTypeName, segment.nzbFile.filename, size))
# Only consider the nzbFile as skipped when there were actually segments
# dequeued, or if readOnlyQueue mode
segment.nzbFile.isSkippedPar = True
segment.nzbFile.nzb.skippedParFiles.append(segment.nzbFile)
else:
info('Queued %s: %s (%iMB, %i %s)' %
(parTypeName, segment.nzbFile.filename, size,
getParSize(segment.nzbFile.filename),
getParRecoveryName(segment.nzbFile.parType)))
class NZBSegmentQueue(PriorityQueue):
""" priority fifo queue of segments to download. lower numbered segments are downloaded
before higher ones """
NZB_CONTENT_P = 100000 # normal nzb downloads
# FIXME: EXTRA_PAR2_P isn't actually used
EXTRA_PAR2_P = 0 # par2 after-the-fact downloads are more important
def __init__(self, fileName=None, parent=None):
PriorityQueue.__init__(self)
if parent is not None:
self.parent = parent
else:
self.parent = self
# Segments curently on disk
self.onDiskSegments = {}
# Maintain a collection of the known nzbFiles belonging to the segments in this
# queue. Set is much faster for _put & __contains__
self.nzbFiles = set()
self.postponedNzbFiles = set()
self.nzbFilesLock = Lock()
self.nzbs = []
self.nzbsLock = Lock()
self.totalQueuedBytes = 0
self.fillServerPriority = 0
self.retryQueueEnabled = False
self.rQueue = RetryQueue()
if fileName is not None:
self.parseNZB(fileName)
def cancel(self):
self.postpone(cancel=True)
def clear(self):
""" Clear the queue of all its contents"""
if self.retryQueueEnabled is not None:
self.rQueue.clear()
PriorityQueue.clear(self)
self.nzbs = []
self.parent.onDiskSegments.clear()
def postpone(self, cancel=False):
""" Postpone the current download """
self.clear()
self.nzbsLock.acquire()
self.nzbFilesLock.acquire()
if not cancel:
self.postponedNzbFiles.update(self.nzbFiles)
self.nzbFiles.clear()
self.nzbFilesLock.release()
self.nzbsLock.release()
self.totalQueuedBytes = 0
def unpostpone(self, nzb):
""" Recall a postponed NZB """
self.nzbFilesLock.acquire()
arName = archiveName(nzb.nzbFileName)
found = []
for nzbFile in self.postponedNzbFiles:
# FIXME:
# Why is this not nzbFile.nzb == nzb?
if nzbFile.nzb.archiveName == arName:
found.append(nzbFile)
for nzbFile in found:
self.postponedNzbFiles.remove(nzbFile)
self.nzbFilesLock.release()
def _put(self, item):
""" Add a segment to the queue """
priority, item = item
# Support adding NZBFiles to the queue. Just adds all the NZBFile's NZBSegments
if isinstance(item, NZBFile):
offset = 0
for nzbSegment in item.nzbSegments:
PriorityQueue._put(self, (priority + offset, nzbSegment))
offset += 1
else:
# Assume segment, add to list
if item.nzbFile not in self.nzbFiles:
self.nzbFiles.add(item.nzbFile)
PriorityQueue._put(self, (priority, item))
def calculateTotalQueuedBytes(self):
""" Calculate how many bytes are queued to be downloaded in this queue """
# NOTE: we don't maintain this calculation all the time, too much CPU work for
# _put
self.totalQueuedBytes = 0
self.nzbFilesLock.acquire()
files = self.nzbFiles.copy()
self.nzbFilesLock.release()
# Total all the nzbFiles, then subtract their segments that don't need to be
# downloaded
for nzbFile in files:
self.totalQueuedBytes += nzbFile.totalBytes
if len(nzbFile.todoNzbSegments) != len(nzbFile.nzbSegments):
for nzbSegment in nzbFile.nzbSegments:
if nzbSegment not in nzbFile.todoNzbSegments:
self.totalQueuedBytes -= nzbSegment.bytes
def dequeueSegments(self, nzbSegments):
""" Explicitly dequeue the specified nzb segments """
# ATOMIC:
dequeued = self.dequeueItems([(nzbSegment.priority, nzbSegment) for nzbSegment in \
nzbSegments])
dequeuedSegments = [segment for priority, segment in dequeued]
if self.retryQueueEnabled:
dequeuedSegments.extend(self.rQueue.dequeueSegments(nzbSegments))
for nzbSegment in dequeuedSegments:
self.segmentDone(nzbSegment, dequeue=True)
return dequeuedSegments
def addQueuedBytes(self, bytes):
""" Add to the totalQueuedBytes count """
self.totalQueuedBytes += bytes
def currentNZBs(self):
""" Return a copy of the list of nzbs currently being downloaded """
self.nzbsLock.acquire()
nzbs = self.nzbs[:]
self.nzbsLock.release()
return nzbs
def nzbAdd(self, nzb):
""" Denote this nzb as currently being downloaded """
self.nzbsLock.acquire()
self.nzbs.append(nzb)
self.nzbsLock.release()
def nzbDone(self, nzb):
""" NZB finished """
self.nzbsLock.acquire()
try:
self.nzbs.remove(nzb)
except ValueError:
# NZB might have been canceled
pass
self.nzbsLock.release()
def isNZBDone(self, nzb, postponed=None):
""" Determine whether or not all of the specified NZB as been thoroughly downloaded """
if postponed is None:
if nzb not in Hellanzb.queue.currentNZBs():
postponed = True
else:
postponed = False
self.nzbFilesLock.acquire()
if not postponed:
queueFilesCopy = self.nzbFiles.copy()
else:
queueFilesCopy = self.postponedNzbFiles.copy()
self.nzbFilesLock.release()
for nzbFile in queueFilesCopy:
if nzbFile not in nzb.nzbFiles:
continue
debug('isNZBDone: NOT DONE: ' + nzbFile.getDestination())
return False
return True
def serverAdd(self, serverFactory):
""" Add the specified server pool, for use by the RetryQueue """
self.rQueue.addServerPool(serverFactory.serverPoolName)
def initRetryQueue(self):
""" Initialize and enable use of the RetryQueue """
self.retryQueueEnabled = self.rQueue.needRetryQueue()
if self.retryQueueEnabled:
self.rQueue.createQueues()
def serverRemove(self, serverFactory):
""" Remove the specified server pool """
self.rQueue.removeServerPool(serverFactory.serverPoolName)
def getSmart(self, serverFactory):
""" Get the next available segment in the queue. The 'smart'ness first checks for segments
in the RetryQueue, otherwise it falls back to the main queue """
# Don't bother w/ retryQueue nonsense unless it's enabled (meaning there are
# multiple serverPools)
if self.retryQueueEnabled:
try:
priority, segment = self.rQueue.get(
serverFactory.serverPoolName)
segment.fromQueue = self
return priority, segment
except Empty:
# All retry queues for this serverPool are empty. fall through
pass
if not len(self) and len(self.rQueue):
# Catch the special case where both the main NZBSegmentQueue is empty, all
# the retry queues for the serverPool are empty, but there is still more
# left to download in the retry queue (scheduled for retry by other
# serverPools)
raise EmptyForThisPool()
priority, segment = PriorityQueue.get_nowait(self)
segment.fromQueue = self
return priority, segment
def requeue(self, serverFactory, segment):
""" Requeue the segment for download. This differs from requeueMissing as it's for
downloads that failed for reasons other than the file or group missing from the
server (such as a connection timeout) """
# This segment only needs to go back into the retry queue if the retry queue is
# enabled AND the segment was previously requeueMissing()'d
if self.retryQueueEnabled and len(segment.failedServerPools):
self.rQueue.requeue(serverFactory.serverPoolName, segment)
else:
self.put((segment.priority, segment))
# There's a funny case where other NZBLeechers in the calling NZBLeecher's factory
# received Empty from the queue, then afterwards the connection is lost (say the
# connection timed out), causing the requeue. Find and reactivate them because
# they now have work to do
self.nudgeIdleNZBLeechers(segment)
def requeueMissing(self, serverFactory, segment):
""" Requeue a missing segment. This segment will be added to the RetryQueue (if enabled),
where other serverPools will find it and reattempt the download """
# This serverPool has just failed the download
assert (serverFactory.serverPoolName not in segment.failedServerPools)
segment.failedServerPools.append(serverFactory.serverPoolName)
if self.retryQueueEnabled:
self.rQueue.requeue(serverFactory.serverPoolName, segment)
# We might have just requeued a segment onto an idle server pool. Reactivate
# any idle connections pertaining to this segment
self.nudgeIdleNZBLeechers(segment)
else:
raise PoolsExhausted()
def nudgeIdleNZBLeechers(self, requeuedSegment):
""" Activate any idle NZBLeechers that might need to download the specified requeued
segment """
reactor.callLater(0, self._nudgeIdleNZBLeechers, requeuedSegment)
def _nudgeIdleNZBLeechers(self, requeuedSegment):
""" Activate any idle NZBLeechers that might need to download the specified requeued
segment """
if not Hellanzb.downloadPaused and not requeuedSegment.nzbFile.nzb.canceled:
for nsf in Hellanzb.nsfs:
if nsf.fillServerPriority != self.fillServerPriority:
continue
if nsf.serverPoolName not in requeuedSegment.failedServerPools:
nsf.activated = True
nsf.fetchNextNZBSegment()
def fileDone(self, nzbFile):
""" Notify the queue a file is done. This is called after assembling a file into its
final contents. Segments are really stored independantly of individual Files in
the queue, hence this function """
self.nzbFilesLock.acquire()
if nzbFile in self.nzbFiles:
self.nzbFiles.remove(nzbFile)
else:
self.nzbFilesLock.release()
return
self.nzbFilesLock.release()
if nzbFile.isAllSegmentsDecoded():
for nzbSegment in nzbFile.nzbSegments:
if self.parent.onDiskSegments.has_key(
nzbSegment.getDestination()):
self.parent.onDiskSegments.pop(nzbSegment.getDestination())
if nzbFile.isExtraPar and nzbFile.nzb.queuedBlocks > 0:
fileBlocks = getParSize(nzbFile.filename)
nzbFile.nzb.queuedBlocks -= fileBlocks
nzbFile.nzb.neededBlocks -= fileBlocks
if nzbFile.isSkippedPar:
# If a skipped par file was actually assembled, it wasn't actually skipped
nzbFile.isSkippedPar = False
if nzbFile in nzbFile.nzb.skippedParFiles:
nzbFile.nzb.skippedParFiles.remove(nzbFile)
if nzbFile.nzb.isSkippedParSubject(nzbFile.subject):
nzbFile.nzb.skippedParSubjects.remove(nzbFile.subject)
def segmentDone(self, nzbSegment, dequeue=False):
""" Simply decrement the queued byte count and register this nzbSegment as finished
downloading, unless the segment is part of a postponed download """
# NOTE: old code locked here: but this block should only contend with itself (only
# called from the ArticleDecoder) ArticleDecoder thread (only segmentDone() and
# isAllSegmentsDecoded() touches todoNzbSegments, dequeuedSegments,
# totalQueuedBytes?
self.nzbsLock.acquire()
if nzbSegment in nzbSegment.nzbFile.todoNzbSegments:
nzbSegment.nzbFile.todoNzbSegments.remove(nzbSegment)
if dequeue:
nzbSegment.nzbFile.dequeuedSegments.add(nzbSegment)
debug('segmentDone: dequeued: %s %i' %
(nzbSegment.nzbFile.subject, nzbSegment.number))
elif nzbSegment in nzbSegment.nzbFile.dequeuedSegments:
# NOTE: this should really never occur
# need this elif?
debug(
'*** segmentDone called on dequeued nzbSegment -- removing from '
'nzbFile.dequeuedSegments!')
nzbSegment.nzbFile.dequeuedSegments.remove(nzbSegment)
if nzbSegment.nzbFile.nzb in Hellanzb.queue.nzbs:
self.totalQueuedBytes -= nzbSegment.bytes
self.nzbsLock.release()
if not dequeue:
# NOTE: currently don't have to lock -- only the ArticleDecoder thread (via
# ->handleDupeNZBSegment->isBeingDownloaded) reads onDiskSegments
self.parent.onDiskSegments[
nzbSegment.getDestination()] = nzbSegment
if nzbSegment.isFirstSegment():
nzbSegment.nzbFile.nzb.firstSegmentsDownloaded += 1
def isBeingDownloadedFile(self, segmentFilename):
""" Whether or not the file on disk is currently in the middle of being
downloaded/assembled. Return the NZBSegment representing the segment specified by
the filename """
# see segmentDone
segmentFilename = segmentFilename
if self.parent.onDiskSegments.has_key(segmentFilename):
return self.parent.onDiskSegments[segmentFilename]
def parseNZB(self, nzb, verbose=True):
""" Initialize the queue from the specified nzb file """
# Create a parser
parser = make_parser()
# No XML namespaces here
parser.setFeature(feature_namespaces, 0)
parser.setFeature(feature_external_ges, 0)
# Create the handler
fileName = nzb.nzbFileName
self.nzbAdd(nzb)
needWorkFiles = []
needWorkSegments = []
nzbp = NZBParser(nzb, needWorkFiles, needWorkSegments)
# Tell the parser to use it
parser.setContentHandler(nzbp)
nzb.calculatingBytes = True
# Parse the input
try:
parser.parse(fileName)
except SAXParseException, saxpe:
nzb.calculatingBytes = False
self.nzbDone(nzb)
msg = 'Unable to parse invalid NZB file: %s: %s' % \
(os.path.basename(fileName), saxpe.getException())
raise FatalError(msg)
nzb.calculatingBytes = False
# We trust the NZB XML's <segment number="111"> attribute, but if the sequence of
# segments does not begin at "1", the parser wouldn't have found the
# nzbFile.firstSegment
for needWorkFile in nzbp.needWorkFiles:
if needWorkFile.firstSegment is None and len(
needWorkFile.nzbSegments):
# Set the firstSegment to the smallest segment number
sortedSegments = [(nzbSegment.number, nzbSegment) for nzbSegment in \
needWorkFile.nzbSegments]
sortedSegments.sort()
needWorkFile.firstSegment = sortedSegments[0][1]
needWorkFile.firstSegment.priority = NZBSegmentQueue.NZB_CONTENT_P
s = time.time()
# The parser will add all the segments of all the NZBFiles that have not already
# been downloaded. After the parsing, we'll check if each of those segments have
# already been downloaded. it's faster to check all segments at one time
needDlFiles, needDlSegments, onDiskSegments = segmentsNeedDownload(needWorkSegments,
overwriteZeroByteSegments = \
nzb.overwriteZeroByteFiles)
e = time.time() - s
# firstSegmentsDownloaded needs to be tweaked if isSkippedPar and no segments were
# found on disk by segmentsNeedDownload. i.e. first segments have ALWAYS already
# been downloaded in isParRecovery mode
fauxFirstSegmentsDownloaded = 0
if Hellanzb.SMART_PAR and nzb.isParRecovery:
for nzbFile in nzb.nzbFiles:
if nzbFile.isSkippedPar and nzbFile.firstSegment not in onDiskSegments:
nzb.firstSegmentsDownloaded += 1
fauxFirstSegmentsDownloaded += 1
# Calculate and print parsed/skipped/queued statistics
skippedPars = 0
queuedParBlocks = 0
for nzbFile in needDlFiles:
if nzbFile.isSkippedPar:
skippedPars += 1
elif nzb.isParRecovery and nzbFile.isExtraPar and \
not nzbFile.isSkippedPar and len(nzbFile.todoNzbSegments) and \
nzbFile.filename is not None and not isHellaTemp(nzbFile.filename):
queuedParBlocks += getParSize(nzbFile.filename)
onDiskBytes = 0
for nzbSegment in onDiskSegments:
onDiskBytes += nzbSegment.bytes
for nzbFile in nzb.nzbFiles:
if nzbFile not in needDlFiles:
onDiskBytes += nzbFile.totalBytes
onDiskFilesCount = nzbp.fileCount - len(needWorkFiles)
onDiskSegmentsCount = len(onDiskSegments)
info('Parsed: %i files (%i posts), %s' %
(nzbp.fileCount, nzbp.segmentCount, prettySize(nzb.totalBytes)))
if onDiskFilesCount or onDiskSegmentsCount:
filesMsg = segmentsMsg = separator = ''
if onDiskFilesCount:
filesMsg = '%i files' % onDiskFilesCount
if onDiskSegmentsCount:
segmentsMsg = '%i segments' % onDiskSegmentsCount
if onDiskFilesCount and onDiskSegmentsCount:
separator = ' and '
info('Skipped (on disk): %s%s%s, %s' %
(filesMsg, separator, segmentsMsg, prettySize(onDiskBytes)))
# Tally what was skipped for correct percentages in the UI
for nzbSegment in onDiskSegments:
nzbSegment.nzbFile.totalSkippedBytes += nzbSegment.bytes
nzbSegment.nzbFile.nzb.totalSkippedBytes += nzbSegment.bytes
# The needWorkFiles will tell us what nzbFiles are missing from the
# FS. segmentsNeedDownload will further tell us what files need to be
# downloaded. files missing from the FS (needWorkFiles) but not needing to be
# downloaded (in needDlFiles) simply need to be assembled
for nzbFile in needWorkFiles:
if nzbFile not in needDlFiles:
# Don't automatically 'finish' the NZB, we'll take care of that in this
# function if necessary
if verbose:
info(nzbFile.getFilename() +
': Assembling -- all segments were on disk')
# NOTE: this function is destructive to the passed in nzbFile! And is only
# called on occasion (might bite you in the ass one day)
try:
assembleNZBFile(nzbFile, autoFinish=False)
except OutOfDiskSpace:
self.nzbDone(nzb)
# FIXME: Shouldn't exit here
error('Cannot assemble ' + nzbFile.getFilename() +
': No space left on device! Exiting..')
Hellanzb.Core.shutdown(True)
for nzbSegment in needDlSegments:
# smartDequeue called from segmentsNeedDownload would have set
# isSkippedParFile for us
if not nzbSegment.nzbFile.isSkippedPar:
self.put((nzbSegment.priority, nzbSegment))
else:
# This would need to be downloaded if we didn't skip the segment, they are
# officially dequeued, and can be requeued later
nzbSegment.nzbFile.dequeuedSegments.add(nzbSegment)
# Requeue files in certain situations
if nzb.firstSegmentsDownloaded == len(nzb.nzbFiles):
# NOTE: This block of code does not commonly happen with newzbin.com NZBs: due
# to how the DupeHandler handles .NFO files. newzbin.com seems to always
# duplicate the .NFO file in their NZBs
smartRequeue(nzb)
logSkippedPars(nzb)
if nzb.isParRecovery and nzb.skippedParSubjects and len(nzb.skippedParSubjects) and \
not len(self):
# FIXME: This recovering ALL pars should be a mode (with a flag on the NZB
# object). No par skipping would occur in this mode -- for the incredibly rare
# case that first segments are lost prior to this mode taking place. What will
# happen doesn't make sense: hellanzb will say 'recovering ALL pars', then
# SmartPar will later skip pars
msg = 'Par recovery download: No pars with prefix: %s -- recovering ALL pars' % \
nzb.parPrefix
if skippedPars:
msg = '%s (%i par files)' % (msg, skippedPars)
if verbose:
warn(msg)
for nzbSegment in needDlSegments:
if nzbSegment.nzbFile.isSkippedPar:
self.put((nzbSegment.priority, nzbSegment))
nzbSegment.nzbFile.todoNzbSegments.add(nzbSegment)
# Only reset the isSkippedPar flag after queueing
for nzbSegment in needDlSegments:
if nzbSegment.nzbFile.isSkippedPar:
nzbSegment.nzbFile.isSkippedPar = False
# We might have faked the value of this: reset it
nzb.firstSegmentsDownloaded -= fauxFirstSegmentsDownloaded
if not len(self):
self.nzbDone(nzb)
if verbose:
info(nzb.archiveName + ': Assembled archive!')
reactor.callLater(0, Hellanzb.Daemon.handleNZBDone, nzb)
# True == the archive is complete
return True
# Finally tally the size of the queue
self.calculateTotalQueuedBytes()
dlMsg = 'Queued: %s' % prettySize(self.totalQueuedBytes)
if nzb.isParRecovery and queuedParBlocks:
dlMsg += ' (recovering %i %s)' % (queuedParBlocks,
getParRecoveryName(nzb.parType))
info(dlMsg)
# Archive not complete
return False
