500 lines
16 KiB
Python
500 lines
16 KiB
Python
import collections
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import threading
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import time
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import traceback
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from hydrus.core import HydrusData
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from hydrus.core import HydrusExceptions
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from hydrus.core import HydrusGlobals as HG
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JOB_STATUS_AWAITING_VALIDITY = 0
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JOB_STATUS_AWAITING_BANDWIDTH = 1
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JOB_STATUS_AWAITING_LOGIN = 2
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JOB_STATUS_AWAITING_SLOT = 3
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JOB_STATUS_RUNNING = 4
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job_status_str_lookup = {}
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job_status_str_lookup[ JOB_STATUS_AWAITING_VALIDITY ] = 'waiting for validation'
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job_status_str_lookup[ JOB_STATUS_AWAITING_BANDWIDTH ] = 'waiting for bandwidth'
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job_status_str_lookup[ JOB_STATUS_AWAITING_LOGIN ] = 'waiting for login'
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job_status_str_lookup[ JOB_STATUS_AWAITING_SLOT ] = 'waiting for free work slot'
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job_status_str_lookup[ JOB_STATUS_RUNNING ] = 'running'
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class NetworkEngine( object ):
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def __init__( self, controller, bandwidth_manager, session_manager, domain_manager, login_manager ):
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self.controller = controller
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self.bandwidth_manager = bandwidth_manager
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self.session_manager = session_manager
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self.domain_manager = domain_manager
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self.login_manager = login_manager
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self.bandwidth_manager.engine = self
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self.session_manager.engine = self
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self.domain_manager.engine = self
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self.login_manager.engine = self
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self._lock = threading.Lock()
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self.RefreshOptions()
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self._new_work_to_do = threading.Event()
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self._domains_to_login = []
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self._active_domains_counter = collections.Counter()
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self._jobs_awaiting_validity = []
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self._current_validation_process = None
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self._jobs_awaiting_bandwidth = []
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self._jobs_awaiting_login = []
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self._current_login_process = None
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self._jobs_awaiting_slot = []
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self._jobs_running = []
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self._pause_all_new_network_traffic = self.controller.new_options.GetBoolean( 'pause_all_new_network_traffic' )
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self._is_running = False
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self._is_shutdown = False
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self._local_shutdown = False
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self.controller.sub( self, 'RefreshOptions', 'notify_new_options' )
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def AddJob( self, job ):
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if HG.network_report_mode:
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HydrusData.ShowText( 'Network Job Added: ' + job._method + ' ' + job._url )
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with self._lock:
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job.engine = self
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self._jobs_awaiting_validity.append( job )
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self._new_work_to_do.set()
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def ForceLogins( self, domains_to_login ):
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with self._lock:
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self._domains_to_login.extend( domains_to_login )
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self._domains_to_login = HydrusData.DedupeList( self._domains_to_login )
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def GetJobsSnapshot( self ):
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with self._lock:
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jobs = []
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jobs.extend( ( ( JOB_STATUS_AWAITING_VALIDITY, j ) for j in self._jobs_awaiting_validity ) )
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jobs.extend( ( ( JOB_STATUS_AWAITING_BANDWIDTH, j ) for j in self._jobs_awaiting_bandwidth ) )
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jobs.extend( ( ( JOB_STATUS_AWAITING_LOGIN, j ) for j in self._jobs_awaiting_login ) )
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jobs.extend( ( ( JOB_STATUS_AWAITING_SLOT, j ) for j in self._jobs_awaiting_slot ) )
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jobs.extend( ( ( JOB_STATUS_RUNNING, j ) for j in self._jobs_running ) )
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return jobs
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def IsBusy( self ):
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with self._lock:
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return len( self._jobs_awaiting_validity ) + len( self._jobs_awaiting_bandwidth ) + len( self._jobs_awaiting_login ) + len( self._jobs_awaiting_slot ) + len( self._jobs_running ) > 50
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def IsRunning( self ):
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with self._lock:
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return self._is_running
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def IsShutdown( self ):
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with self._lock:
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return self._is_shutdown
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def MainLoop( self ):
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def ProcessValidationJob( job ):
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if job.IsDone():
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return False
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elif job.IsAsleep():
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return True
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elif not job.IsValid():
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if job.CanValidateInPopup():
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if self._current_validation_process is None:
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validation_process = job.GenerateValidationPopupProcess()
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self.controller.CallToThread( validation_process.Start )
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self._current_validation_process = validation_process
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job.SetStatus( 'validation presented to user\u2026' )
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else:
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job.SetStatus( 'waiting in user validation queue\u2026' )
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job.Sleep( 5 )
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return True
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else:
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error_text = 'network context not currently valid!'
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job.SetError( HydrusExceptions.ValidationException( error_text ), error_text )
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return False
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else:
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self._jobs_awaiting_bandwidth.append( job )
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return False
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def ProcessCurrentValidationJob():
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if self._current_validation_process is not None:
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if self._current_validation_process.IsDone():
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self._current_validation_process = None
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def ProcessBandwidthJob( job ):
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if job.IsDone():
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return False
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elif job.IsAsleep():
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return True
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elif self._pause_all_new_network_traffic:
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job.SetStatus( 'all new network traffic is paused\u2026' )
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job.Sleep( 2 )
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return True
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elif not job.TryToStartBandwidth():
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return True
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else:
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self._jobs_awaiting_login.append( job )
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return False
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def ProcessForceLogins():
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if len( self._domains_to_login ) > 0 and self._current_login_process is None:
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try:
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login_domain = self._domains_to_login.pop( 0 )
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login_process = self.login_manager.GenerateLoginProcessForDomain( login_domain )
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except Exception as e:
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HydrusData.ShowException( e )
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return
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self.controller.CallToThread( login_process.Start )
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self._current_login_process = login_process
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def ProcessLoginJob( job ):
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if job.IsDone():
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return False
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elif job.IsAsleep():
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return True
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elif job.NeedsLogin():
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try:
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job.CheckCanLogin()
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except Exception as e:
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if job.WillingToWaitOnInvalidLogin():
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job.SetStatus( str( e ) )
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job.Sleep( 60 )
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return True
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else:
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if job.IsHydrusJob():
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message = 'This hydrus service (' + job.GetLoginNetworkContext().ToString() + ') could not do work because: {}'.format( str( e ) )
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else:
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message = 'This job\'s network context (' + job.GetLoginNetworkContext().ToString() + ') seems to have an invalid login. The error was: {}'.format( str( e ) )
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job.Cancel( message )
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return False
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if self._current_login_process is None:
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try:
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login_process = job.GenerateLoginProcess()
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except Exception as e:
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HydrusData.ShowException( e )
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job.SetStatus( str( e ) )
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job.Sleep( 60 )
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return True
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self.controller.CallToThread( login_process.Start )
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self._current_login_process = login_process
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job.SetStatus( 'logging in\u2026' )
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else:
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job.SetStatus( 'waiting in login queue\u2026' )
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return True
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else:
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self._jobs_awaiting_slot.append( job )
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return False
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def ProcessCurrentLoginJob():
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if self._current_login_process is not None:
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if self._current_login_process.IsDone():
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self._current_login_process = None
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def ProcessReadyJob( job ):
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if job.IsDone():
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return False
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elif job.IsAsleep():
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return True
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elif len( self._jobs_running ) < self.MAX_JOBS:
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if self._pause_all_new_network_traffic:
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job.SetStatus( 'all new network traffic is paused\u2026' )
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job.Sleep( 2 )
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return True
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elif self.controller.JustWokeFromSleep():
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job.SetStatus( 'looks like computer just woke up, waiting a bit' )
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job.Sleep( 5 )
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return True
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elif self._active_domains_counter[ job.GetSecondLevelDomain() ] >= self.MAX_JOBS_PER_DOMAIN:
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job.SetStatus( 'waiting for other jobs on this domain to finish' )
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job.Sleep( 2 )
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return True
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elif not job.TokensOK():
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return True
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elif not job.DomainOK():
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return True
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else:
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if HG.network_report_mode:
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HydrusData.ShowText( 'Network Job Starting: ' + job._method + ' ' + job._url )
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self._active_domains_counter[ job.GetSecondLevelDomain() ] += 1
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self.controller.CallToThread( job.Start )
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self._jobs_running.append( job )
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return False
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else:
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job.SetStatus( 'waiting for other jobs to finish\u2026' )
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return True
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def ProcessRunningJob( job ):
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if job.IsDone():
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if HG.network_report_mode:
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HydrusData.ShowText( 'Network Job Done: ' + job._method + ' ' + job._url )
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second_level_domain = job.GetSecondLevelDomain()
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self._active_domains_counter[ second_level_domain ] -= 1
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if self._active_domains_counter[ second_level_domain ] == 0:
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del self._active_domains_counter[ second_level_domain ]
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return False
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else:
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return True
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self._is_running = True
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while not ( self._local_shutdown or HG.model_shutdown ):
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with self._lock:
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self._jobs_awaiting_validity = list( filter( ProcessValidationJob, self._jobs_awaiting_validity ) )
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ProcessCurrentValidationJob()
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self._jobs_awaiting_bandwidth = list( filter( ProcessBandwidthJob, self._jobs_awaiting_bandwidth ) )
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ProcessForceLogins()
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self._jobs_awaiting_login = list( filter( ProcessLoginJob, self._jobs_awaiting_login ) )
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ProcessCurrentLoginJob()
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self._jobs_awaiting_slot = list( filter( ProcessReadyJob, self._jobs_awaiting_slot ) )
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self._jobs_running = list( filter( ProcessRunningJob, self._jobs_running ) )
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# we want to catch the rollover of the second for bandwidth jobs
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now_with_subsecond = time.time()
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subsecond_part = now_with_subsecond % 1
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time_until_next_second = 1.0 - subsecond_part
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self._new_work_to_do.wait( time_until_next_second )
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self._new_work_to_do.clear()
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self._is_running = False
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self._is_shutdown = True
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def PausePlayNewJobs( self ):
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self._pause_all_new_network_traffic = not self._pause_all_new_network_traffic
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self.controller.new_options.SetBoolean( 'pause_all_new_network_traffic', self._pause_all_new_network_traffic )
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def RefreshOptions( self ):
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with self._lock:
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self.MAX_JOBS = self.controller.new_options.GetInteger( 'max_network_jobs' )
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self.MAX_JOBS_PER_DOMAIN = self.controller.new_options.GetInteger( 'max_network_jobs_per_domain' )
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def Shutdown( self ):
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self._local_shutdown = True
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self._new_work_to_do.set()
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