209 lines
9.6 KiB
Python
209 lines
9.6 KiB
Python
import socket
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import logging
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import time
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import pyinotify
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from pyinotify import ProcessEvent
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# For RabbitMQ
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from kombu.connection import BrokerConnection
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from kombu.messaging import Exchange, Queue, Consumer, Producer
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from airtimemetadata import AirtimeMetadata
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from airtimefilemonitor.mediaconfig import AirtimeMediaConfig
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class AirtimeProcessEvent(ProcessEvent):
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#TODO
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def my_init(self, queue, airtime_config=None, wm=None, mmc=None):
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"""
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Method automatically called from ProcessEvent.__init__(). Additional
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keyworded arguments passed to ProcessEvent.__init__() are then
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delegated to my_init().
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"""
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self.logger = logging.getLogger()
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self.config = airtime_config
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#put the file path into this dict if we want to ignore certain
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#events. For example, when deleting a file from the web ui, we
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#are going to delete it from the db on the server side, so media-monitor
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#doesn't need to contact the server and tell it to delete again.
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self.ignore_event = set()
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self.temp_files = {}
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self.cookies_IN_MOVED_FROM = {}
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self.file_events = []
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self.multi_queue = queue
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self.wm = wm
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self.md_manager = AirtimeMetadata()
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self.mmc = mmc
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def add_filepath_to_ignore(self, filepath):
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self.ignore_event.add(filepath)
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#event.dir: True if the event was raised against a directory.
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#event.name: filename
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#event.pathname: pathname (str): Concatenation of 'path' and 'name'.
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def process_IN_CREATE(self, event):
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self.handle_created_file(event.dir, event.pathname, event.name)
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def handle_created_file(self, dir, pathname, name):
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if not dir:
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self.logger.debug("PROCESS_IN_CREATE: %s, name: %s, pathname: %s ", dir, name, pathname)
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#event is because of a created file
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if self.mmc.is_temp_file(name) :
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#file created is a tmp file which will be modified and then moved back to the original filename.
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#Easy Tag creates this when changing metadata of ogg files.
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self.temp_files[pathname] = None
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#file is being overwritten/replaced in GUI.
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elif "goutputstream" in pathname:
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self.temp_files[pathname] = None
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elif self.mmc.is_audio_file(pathname):
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if self.mmc.is_parent_directory(pathname, self.config.organize_directory):
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#file was created in /srv/airtime/stor/organize. Need to process and move
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#to /srv/airtime/stor/imported
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new_filepath = self.mmc.organize_new_file(pathname)
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return new_filepath
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else:
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self.mmc.set_needed_file_permissions(pathname, dir)
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if self.mmc.is_parent_directory(pathname, self.config.recorded_directory):
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is_recorded = True
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else :
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is_recorded = False
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self.file_events.append({'mode': self.config.MODE_CREATE, 'filepath': pathname, 'is_recorded_show': is_recorded})
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else:
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#event is because of a created directory
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if self.mmc.is_parent_directory(pathname, self.config.storage_directory):
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self.mmc.set_needed_file_permissions(pathname, dir)
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def process_IN_MODIFY(self, event):
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self.logger.info("process_IN_MODIFY: %s", event)
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self.handle_modified_file(event.dir, event.pathname, event.name)
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def handle_modified_file(self, dir, pathname, name):
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if not dir and not self.mmc.is_parent_directory(pathname, self.config.organize_directory):
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self.logger.info("Modified: %s", pathname)
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if self.mmc.is_audio_file(name):
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self.file_events.append({'filepath': pathname, 'mode': self.config.MODE_MODIFY})
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#if a file is moved somewhere, this callback is run. With details about
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#where the file is being moved from. The corresponding process_IN_MOVED_TO
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#callback is only called if the destination of the file is also in a watched
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#directory.
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def process_IN_MOVED_FROM(self, event):
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self.logger.info("process_IN_MOVED_FROM: %s", event)
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if not event.dir:
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if event.pathname in self.temp_files:
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self.temp_files[event.cookie] = event.pathname
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elif not self.mmc.is_parent_directory(event.pathname, self.config.organize_directory):
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#we don't care about moved_from events from the organize dir.
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if self.mmc.is_audio_file(event.name):
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self.cookies_IN_MOVED_FROM[event.cookie] = (event, time.time())
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#Some weird thing to note about this event: it seems that if a file is moved to a newly
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#created directory, then the IN_MOVED_FROM event will be called, but instead of a corresponding
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#IN_MOVED_TO event, a IN_CREATED event will happen instead. However if the directory existed before
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#then the IN_MOVED_TO event will be called.
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def process_IN_MOVED_TO(self, event):
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self.logger.info("process_IN_MOVED_TO: %s", event)
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#if stuff dropped in stor via a UI move must change file permissions.
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self.mmc.set_needed_file_permissions(event.pathname, event.dir)
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if not event.dir:
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if self.mmc.is_audio_file(event.name):
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if event.cookie in self.temp_files:
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self.file_events.append({'filepath': event.pathname, 'mode': self.config.MODE_MODIFY})
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del self.temp_files[event.cookie]
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elif event.cookie in self.cookies_IN_MOVED_FROM:
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#files original location was also in a watched directory
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del self.cookies_IN_MOVED_FROM[event.cookie]
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if self.mmc.is_parent_directory(event.pathname, self.config.organize_directory):
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filepath = self.mmc.organize_new_file(event.pathname)
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else:
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filepath = event.pathname
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if (filepath is not None):
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self.file_events.append({'filepath': filepath, 'mode': self.config.MODE_MOVED})
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else:
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if self.mmc.is_parent_directory(event.pathname, self.config.organize_directory):
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self.mmc.organize_new_file(event.pathname)
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else:
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#show dragged from unwatched folder into a watched folder. Do not "organize".:q!
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if self.mmc.is_parent_directory(event.pathname, self.config.recorded_directory):
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is_recorded = True
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else :
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is_recorded = False
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self.file_events.append({'mode': self.config.MODE_CREATE, 'filepath': event.pathname, 'is_recorded_show': is_recorded})
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else:
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#When we move a directory into a watched_dir, we only get a notification that the dir was created,
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#and no additional information about files that came along with that directory.
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#need to scan the entire directory for files.
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files = self.mmc.scan_dir_for_new_files(event.pathname)
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if self.mmc.is_parent_directory(event.pathname, self.config.organize_directory):
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for file in files:
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self.mmc.organize_new_file(file)
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else:
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for file in files:
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if self.mmc.is_parent_directory(pathname, self.config.recorded_directory):
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is_recorded = True
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else :
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is_recorded = False
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self.file_events.append({'mode': self.config.MODE_CREATE, 'filepath': file, 'is_recorded_show': is_recorded})
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def process_IN_DELETE(self, event):
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self.logger.info("process_IN_DELETE: %s", event)
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self.handle_removed_file(event.dir, event.pathname)
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def handle_removed_file(self, dir, pathname):
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self.logger.info("Deleting %s", pathname)
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if not dir:
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if self.mmc.is_audio_file(pathname):
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if pathname in self.ignore_event:
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self.ignore_event.remove(pathname)
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elif not self.mmc.is_parent_directory(pathname, self.config.organize_directory):
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#we don't care if a file was deleted from the organize directory.
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self.file_events.append({'filepath': pathname, 'mode': self.config.MODE_DELETE})
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def process_default(self, event):
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pass
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def notifier_loop_callback(self, notifier):
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if len(self.file_events) > 0:
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for event in self.file_events:
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self.multi_queue.put(event)
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self.mmc.touch_index_file()
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self.file_events = []
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#use items() because we are going to be modifying this
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#dictionary while iterating over it.
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for k, pair in self.cookies_IN_MOVED_FROM.items():
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event = pair[0]
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timestamp = pair[1]
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timestamp_now = time.time()
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if timestamp_now - timestamp > 5:
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#in_moved_from event didn't have a corresponding
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#in_moved_to event in the last 5 seconds.
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#This means the file was moved to outside of the
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#watched directories. Let's handle this by deleting
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#it from the Airtime directory.
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del self.cookies_IN_MOVED_FROM[k]
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self.handle_removed_file(False, event.pathname)
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#check for any events recieved from Airtime.
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try:
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notifier.connection.drain_events(timeout=0.1)
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#avoid logging a bunch of timeout messages.
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except socket.timeout:
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pass
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except Exception, e:
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self.logger.info("%s", e)
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