mirror of
https://github.com/janeczku/calibre-web
synced 2024-11-16 14:54:55 +00:00
635 lines
27 KiB
Python
635 lines
27 KiB
Python
# -*- coding: utf-8 -*-
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# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
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# Copyright (C) 2018-2019 OzzieIsaacs
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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 3 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, see <http://www.gnu.org/licenses/>.
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import sys
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import os
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import datetime
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import json
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import shutil
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import threading
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import time
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import zipfile
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from io import BytesIO
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from tempfile import gettempdir
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import requests
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from flask_babel import format_datetime
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from flask_babel import gettext as _
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from . import constants, logger # config, web_server
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log = logger.create()
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_REPOSITORY_API_URL = 'https://api.github.com/repos/janeczku/calibre-web'
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def is_sha1(sha1):
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if len(sha1) != 40:
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return False
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try:
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int(sha1, 16)
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except ValueError:
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return False
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return True
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class Updater(threading.Thread):
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def __init__(self):
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threading.Thread.__init__(self)
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self.paused = False
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self.can_run = threading.Event()
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self.pause()
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self.status = -1
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self.updateIndex = None
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def init_updater(self, config, web_server):
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self.config = config
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self.web_server = web_server
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def get_current_version_info(self):
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if self.config.config_updatechannel == constants.UPDATE_STABLE:
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return self._stable_version_info()
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return self._nightly_version_info()
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def get_available_updates(self, request_method):
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if self.config.config_updatechannel == constants.UPDATE_STABLE:
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return self._stable_available_updates(request_method)
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return self._nightly_available_updates(request_method)
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def do_work(self):
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try:
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self.status = 1
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log.debug(u'Download update file')
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headers = {'Accept': 'application/vnd.github.v3+json'}
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r = requests.get(self._get_request_path(), stream=True, headers=headers, timeout=(10, 600))
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r.raise_for_status()
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self.status = 2
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log.debug(u'Opening zipfile')
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z = zipfile.ZipFile(BytesIO(r.content))
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self.status = 3
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log.debug(u'Extracting zipfile')
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tmp_dir = gettempdir()
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z.extractall(tmp_dir)
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folder_name = os.path.join(tmp_dir, z.namelist()[0])[:-1]
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if not os.path.isdir(folder_name):
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self.status = 11
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log.info(u'Extracted contents of zipfile not found in temp folder')
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self.pause()
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return False
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self.status = 4
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log.debug(u'Replacing files')
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if self.update_source(folder_name, constants.BASE_DIR):
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self.status = 6
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log.debug(u'Preparing restart of server')
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time.sleep(2)
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self.web_server.stop(True)
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self.status = 7
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time.sleep(2)
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return True
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else:
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self.status = 13
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except requests.exceptions.HTTPError as ex:
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log.error(u'HTTP Error %s', ex)
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self.status = 8
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except requests.exceptions.ConnectionError:
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log.error(u'Connection error')
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self.status = 9
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except requests.exceptions.Timeout:
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log.error(u'Timeout while establishing connection')
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self.status = 10
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except (requests.exceptions.RequestException, zipfile.BadZipFile):
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self.status = 11
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log.error(u'General error')
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except (IOError, OSError) as ex:
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self.status = 12
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log.error(u'Possible Reason for error: update file could not be saved in temp dir')
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log.error_or_exception(ex)
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self.pause()
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return False
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def run(self):
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while True:
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self.can_run.wait()
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if self.status > -1:
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if self.do_work():
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break # stop loop and end thread for restart
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else:
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break
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def pause(self):
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self.can_run.clear()
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# should just resume the thread
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def resume(self):
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self.can_run.set()
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def stop(self):
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self.status = -2
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self.can_run.set()
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def get_update_status(self):
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return self.status
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@classmethod
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def file_to_list(cls, filelist):
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return [x.strip() for x in open(filelist, 'r') if not x.startswith('#EXT')]
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@classmethod
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def one_minus_two(cls, one, two):
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return [x for x in one if x not in set(two)]
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@classmethod
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def reduce_dirs(cls, delete_files, new_list):
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new_delete = []
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for filename in delete_files:
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parts = filename.split(os.sep)
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sub = ''
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for part in parts:
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sub = os.path.join(sub, part)
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if sub == '':
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sub = os.sep
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count = 0
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for song in new_list:
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if song.startswith(sub):
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count += 1
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break
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if count == 0:
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if sub != '\\':
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new_delete.append(sub)
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break
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return list(set(new_delete))
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@classmethod
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def reduce_files(cls, remove_items, exclude_items):
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rf = []
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for item in remove_items:
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if not item.startswith(exclude_items):
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rf.append(item)
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return rf
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@classmethod
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def check_permissions(cls, root_src_dir, root_dst_dir, log_function):
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access = True
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remove_path = len(root_src_dir) + 1
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for src_dir, __, files in os.walk(root_src_dir):
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root_dir = os.path.join(root_dst_dir, src_dir[remove_path:])
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# Skip non-existing folders on check
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if not os.path.isdir(root_dir):
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continue
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if not os.access(root_dir, os.R_OK | os.W_OK):
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log_function("Missing permissions for {}".format(root_dir))
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access = False
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for file_ in files:
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curr_file = os.path.join(root_dir, file_)
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# Skip non-existing files on check
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if not os.path.isfile(curr_file): # or curr_file.startswith('.'):
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continue
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if not os.access(curr_file, os.R_OK | os.W_OK):
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log_function("Missing permissions for {}".format(curr_file))
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access = False
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return access
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@classmethod
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def move_all_files(cls, root_src_dir, root_dst_dir):
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permission = None
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new_permissions = os.stat(root_dst_dir)
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log.debug('Performing Update on OS-System: %s', sys.platform)
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change_permissions = not (sys.platform == "win32" or sys.platform == "darwin")
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for src_dir, __, files in os.walk(root_src_dir):
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dst_dir = src_dir.replace(root_src_dir, root_dst_dir, 1)
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if not os.path.exists(dst_dir):
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try:
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os.makedirs(dst_dir)
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log.debug('Create directory: {}'.format(dst_dir))
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except OSError as e:
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log.error('Failed creating folder: {} with error {}'.format(dst_dir, e))
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if change_permissions:
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try:
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os.chown(dst_dir, new_permissions.st_uid, new_permissions.st_gid)
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except OSError as e:
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old_permissions = os.stat(dst_dir)
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log.error('Failed changing permissions of %s. Before: %s:%s After %s:%s error: %s',
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dst_dir, old_permissions.st_uid, old_permissions.st_gid,
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new_permissions.st_uid, new_permissions.st_gid, e)
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for file_ in files:
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src_file = os.path.join(src_dir, file_)
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dst_file = os.path.join(dst_dir, file_)
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if os.path.exists(dst_file):
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if change_permissions:
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permission = os.stat(dst_file)
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try:
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os.remove(dst_file)
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log.debug('Remove file before copy: {}'.format(dst_file))
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except OSError as e:
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log.error('Failed removing file: {} with error {}'.format(dst_file, e))
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else:
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if change_permissions:
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permission = new_permissions
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try:
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shutil.move(src_file, dst_dir)
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log.debug('Move File %s to %s', src_file, dst_dir)
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except OSError as ex:
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log.error('Failed moving file from {} to {} with error {}'.format(src_file, dst_dir, ex))
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if change_permissions:
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try:
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os.chown(dst_file, permission.st_uid, permission.st_gid)
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except OSError as e:
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old_permissions = os.stat(dst_file)
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log.error('Failed changing permissions of %s. Before: %s:%s After %s:%s error: %s',
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dst_file, old_permissions.st_uid, old_permissions.st_gid,
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permission.st_uid, permission.st_gid, e)
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return
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def update_source(self, source, destination):
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# destination files
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old_list = list()
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exclude = self._add_excluded_files(log.info)
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additional_path = self.is_venv()
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if additional_path:
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exclude.append(additional_path)
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exclude = tuple(exclude)
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# check if we are in a package, rename cps.py to __init__.py and __main__.py
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if constants.HOME_CONFIG:
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shutil.copy(os.path.join(source, 'cps.py'), os.path.join(source, '__main__.py'))
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shutil.move(os.path.join(source, 'cps.py'), os.path.join(source, '__init__.py'))
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for root, dirs, files in os.walk(destination, topdown=True):
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for name in files:
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old_list.append(os.path.join(root, name).replace(destination, ''))
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for name in dirs:
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old_list.append(os.path.join(root, name).replace(destination, ''))
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# source files
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new_list = list()
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for root, dirs, files in os.walk(source, topdown=True):
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for name in files:
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new_list.append(os.path.join(root, name).replace(source, ''))
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for name in dirs:
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new_list.append(os.path.join(root, name).replace(source, ''))
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delete_files = self.one_minus_two(old_list, new_list)
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rf = self.reduce_files(delete_files, exclude)
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remove_items = self.reduce_dirs(rf, new_list)
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if self.check_permissions(source, destination, log.debug):
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self.move_all_files(source, destination)
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for item in remove_items:
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item_path = os.path.join(destination, item[1:])
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if os.path.isdir(item_path):
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log.debug("Delete dir %s", item_path)
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shutil.rmtree(item_path, ignore_errors=True)
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else:
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try:
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os.remove(item_path)
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log.debug("Delete file %s", item_path)
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except OSError:
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log.debug("Could not remove: %s", item_path)
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shutil.rmtree(source, ignore_errors=True)
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return True
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else:
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log.debug("Permissions missing for update")
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return False
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@staticmethod
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def is_venv():
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if (hasattr(sys, 'real_prefix')) or (hasattr(sys, 'base_prefix') and sys.base_prefix != sys.prefix):
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return os.sep + os.path.relpath(sys.prefix, constants.BASE_DIR)
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else:
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return False
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@classmethod
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def _nightly_version_info(cls):
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if is_sha1(constants.NIGHTLY_VERSION[0]) and len(constants.NIGHTLY_VERSION[1]) > 0:
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log.debug("Nightly version: {}, {}".format(constants.NIGHTLY_VERSION[0], constants.NIGHTLY_VERSION[1]))
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return {'version': constants.NIGHTLY_VERSION[0], 'datetime': constants.NIGHTLY_VERSION[1]}
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return False
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@classmethod
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def _stable_version_info(cls):
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log.debug("Stable version: {}".format(constants.STABLE_VERSION))
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return constants.STABLE_VERSION # Current version
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@classmethod
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def dry_run(cls):
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cls._add_excluded_files(print)
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cls.check_permissions(constants.BASE_DIR, constants.BASE_DIR, print)
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print("\n*** Finished ***")
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@staticmethod
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def _populate_parent_commits(update_data, status, tz, parents):
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try:
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parent_commit = update_data['parents'][0]
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# limit the maximum search depth
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remaining_parents_cnt = 10
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except (IndexError, KeyError):
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remaining_parents_cnt = None
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parent_commit = None
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if remaining_parents_cnt is not None:
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while True:
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if remaining_parents_cnt == 0:
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break
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# check if we are more than one update behind if so, go up the tree
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if parent_commit['sha'] != status['current_commit_hash']:
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try:
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headers = {'Accept': 'application/vnd.github.v3+json'}
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r = requests.get(parent_commit['url'], headers=headers, timeout=10)
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r.raise_for_status()
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parent_data = r.json()
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parent_commit_date = datetime.datetime.strptime(
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parent_data['committer']['date'], '%Y-%m-%dT%H:%M:%SZ') - tz
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parent_commit_date = format_datetime(
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parent_commit_date, format='short')
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parents.append([parent_commit_date,
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parent_data['message'].replace('\r\n', '<p>').replace('\n', '<p>')])
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parent_commit = parent_data['parents'][0]
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remaining_parents_cnt -= 1
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except Exception:
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# it isn't crucial if we can't get information about the parent
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break
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else:
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# parent is our current version
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break
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return parents
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@staticmethod
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def _load_nightly_data(repository_url, commit, status):
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update_data = dict()
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try:
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headers = {'Accept': 'application/vnd.github.v3+json'}
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r = requests.get(repository_url + '/git/commits/' + commit['object']['sha'],
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headers=headers,
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timeout=10)
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r.raise_for_status()
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update_data = r.json()
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except requests.exceptions.HTTPError as e:
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status['message'] = _(u'HTTP Error') + ' ' + str(e)
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except requests.exceptions.ConnectionError:
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status['message'] = _(u'Connection error')
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except requests.exceptions.Timeout:
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status['message'] = _(u'Timeout while establishing connection')
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except (requests.exceptions.RequestException, ValueError):
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status['message'] = _(u'General error')
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return status, update_data
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@staticmethod
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def _add_excluded_files(log_function):
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excluded_files = [
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os.sep + 'app.db', os.sep + 'calibre-web.log1', os.sep + 'calibre-web.log2', os.sep + 'gdrive.db',
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os.sep + 'vendor', os.sep + 'calibre-web.log', os.sep + '.git', os.sep + 'client_secrets.json',
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os.sep + 'gdrive_credentials', os.sep + 'settings.yaml', os.sep + 'venv', os.sep + 'virtualenv',
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os.sep + 'access.log', os.sep + 'access.log1', os.sep + 'access.log2',
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os.sep + '.calibre-web.log.swp', os.sep + '_sqlite3.so', os.sep + 'cps' + os.sep + '.HOMEDIR',
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os.sep + 'gmail.json', os.sep + 'exclude.txt', os.sep + 'cps' + os.sep + 'cache'
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]
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try:
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with open(os.path.join(constants.BASE_DIR, "exclude.txt"), "r") as f:
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lines = f.readlines()
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for line in lines:
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processed_line = line.strip("\n\r ").strip("\"'").lstrip("\\/ ").\
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replace("\\", os.sep).replace("/", os.sep)
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if os.path.exists(os.path.join(constants.BASE_DIR, processed_line)):
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excluded_files.append(os.sep + processed_line)
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else:
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log_function("File list for updater: {} not found".format(line))
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except (PermissionError, FileNotFoundError):
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log_function("Excluded file list for updater not found, or not accessible")
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return excluded_files
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def _nightly_available_updates(self, request_method):
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tz = datetime.timedelta(seconds=time.timezone if (time.localtime().tm_isdst == 0) else time.altzone)
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if request_method == "GET":
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repository_url = _REPOSITORY_API_URL
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status, commit = self._load_remote_data(repository_url + '/git/refs/heads/master')
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parents = []
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if status['message'] != '':
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return json.dumps(status)
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if 'object' not in commit or 'url' not in commit['object']:
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status['message'] = _(u'Unexpected data while reading update information')
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return json.dumps(status)
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try:
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if commit['object']['sha'] == status['current_commit_hash']:
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status.update({
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'update': False,
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'success': True,
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'message': _(u'No update available. You already have the latest version installed')
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})
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return json.dumps(status)
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except (TypeError, KeyError):
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status['message'] = _(u'Unexpected data while reading update information')
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return json.dumps(status)
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# a new update is available
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status['update'] = True
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status, update_data = self._load_nightly_data(repository_url, commit, status)
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if status['message'] != '':
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return json.dumps(status)
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# if 'committer' in update_data and 'message' in update_data:
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try:
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log.debug("A new update is available.")
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status['success'] = True
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status['message'] = _(
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u'A new update is available. Click on the button below to update to the latest version.')
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new_commit_date = datetime.datetime.strptime(
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update_data['committer']['date'], '%Y-%m-%dT%H:%M:%SZ') - tz
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parents.append(
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[
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format_datetime(new_commit_date, format='short'),
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update_data['message'],
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update_data['sha']
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]
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)
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# it only makes sense to analyze the parents if we know the current commit hash
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if status['current_commit_hash'] != '':
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parents = self._populate_parent_commits(update_data, status, tz, parents)
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status['history'] = parents[::-1]
|
|
except (IndexError, KeyError):
|
|
status['success'] = False
|
|
status['message'] = _(u'Could not fetch update information')
|
|
log.error("Could not fetch update information")
|
|
return json.dumps(status)
|
|
return ''
|
|
|
|
def _stable_updater_set_status(self, i, newer, status, parents, commit):
|
|
if i == -1 and newer is False:
|
|
status.update({
|
|
'update': True,
|
|
'success': True,
|
|
'message': _(
|
|
u'Click on the button below to update to the latest stable version.'),
|
|
'history': parents
|
|
})
|
|
self.updateFile = commit[0]['zipball_url']
|
|
elif i == -1 and newer is True:
|
|
status.update({
|
|
'update': True,
|
|
'success': True,
|
|
'message': _(u'A new update is available. Click on the button below to '
|
|
u'update to version: %(version)s', version=commit[0]['tag_name']),
|
|
'history': parents
|
|
})
|
|
self.updateFile = commit[0]['zipball_url']
|
|
return status
|
|
|
|
def _stable_updater_parse_major_version(self, commit, i, parents, current_version, status):
|
|
if int(commit[i + 1]['tag_name'].split('.')[1]) == current_version[1]:
|
|
parents.append([commit[i]['tag_name'],
|
|
commit[i]['body'].replace('\r\n', '<p>').replace('\n', '<p>')])
|
|
status.update({
|
|
'update': True,
|
|
'success': True,
|
|
'message': _(u'A new update is available. Click on the button below to '
|
|
u'update to version: %(version)s', version=commit[i]['tag_name']),
|
|
'history': parents
|
|
})
|
|
self.updateFile = commit[i]['zipball_url']
|
|
else:
|
|
parents.append([commit[i + 1]['tag_name'],
|
|
commit[i + 1]['body'].replace('\r\n', '<p>').replace('\n', '<p>')])
|
|
status.update({
|
|
'update': True,
|
|
'success': True,
|
|
'message': _(u'A new update is available. Click on the button below to '
|
|
u'update to version: %(version)s', version=commit[i + 1]['tag_name']),
|
|
'history': parents
|
|
})
|
|
self.updateFile = commit[i + 1]['zipball_url']
|
|
return status, parents
|
|
|
|
def _stable_available_updates(self, request_method):
|
|
status = None
|
|
if request_method == "GET":
|
|
parents = []
|
|
# repository_url = 'https://api.github.com/repos/flatpak/flatpak/releases' # test URL
|
|
repository_url = _REPOSITORY_API_URL + '/releases?per_page=100'
|
|
status, commit = self._load_remote_data(repository_url)
|
|
if status['message'] != '':
|
|
return json.dumps(status)
|
|
if not commit:
|
|
status['success'] = True
|
|
status['message'] = _(u'No release information available')
|
|
return json.dumps(status)
|
|
version = status['current_commit_hash']
|
|
current_version = status['current_commit_hash'].split('.')
|
|
|
|
# we are already on newest version, no update available
|
|
if 'tag_name' not in commit[0]:
|
|
status['message'] = _(u'Unexpected data while reading update information')
|
|
log.error("Unexpected data while reading update information")
|
|
return json.dumps(status)
|
|
if commit[0]['tag_name'] == version:
|
|
status.update({
|
|
'update': False,
|
|
'success': True,
|
|
'message': _(u'No update available. You already have the latest version installed')
|
|
})
|
|
return json.dumps(status)
|
|
|
|
i = len(commit) - 1
|
|
newer = False
|
|
while i >= 0:
|
|
if 'tag_name' not in commit[i] or 'body' not in commit[i] or 'zipball_url' not in commit[i]:
|
|
status['message'] = _(u'Unexpected data while reading update information')
|
|
return json.dumps(status)
|
|
major_version_update = int(commit[i]['tag_name'].split('.')[0])
|
|
minor_version_update = int(commit[i]['tag_name'].split('.')[1])
|
|
patch_version_update = int(commit[i]['tag_name'].split('.')[2])
|
|
|
|
current_version[0] = int(current_version[0])
|
|
current_version[1] = int(current_version[1])
|
|
try:
|
|
current_version[2] = int(current_version[2])
|
|
except ValueError:
|
|
current_version[2] = int(current_version[2].split(' ')[0])-1
|
|
|
|
# Check if major versions are identical search for newest non-equal commit and update to this one
|
|
if major_version_update == current_version[0]:
|
|
if (minor_version_update == current_version[1] and
|
|
patch_version_update > current_version[2]) or \
|
|
minor_version_update > current_version[1]:
|
|
parents.append([commit[i]['tag_name'], commit[i]['body'].replace('\r\n', '<p>')])
|
|
newer = True
|
|
i -= 1
|
|
continue
|
|
if major_version_update < current_version[0]:
|
|
i -= 1
|
|
continue
|
|
if major_version_update > current_version[0]:
|
|
# found update to last version before major update, unless current version is on last version
|
|
# before major update
|
|
if i == (len(commit) - 1):
|
|
i -= 1
|
|
status, parents = self._stable_updater_parse_major_version(commit,
|
|
i,
|
|
parents,
|
|
current_version,
|
|
status)
|
|
break
|
|
|
|
status = self._stable_updater_set_status(i, newer, status, parents, commit)
|
|
return json.dumps(status)
|
|
|
|
def _get_request_path(self):
|
|
if self.config.config_updatechannel == constants.UPDATE_STABLE:
|
|
return self.updateFile
|
|
return _REPOSITORY_API_URL + '/zipball/master'
|
|
|
|
def _load_remote_data(self, repository_url):
|
|
status = {
|
|
'update': False,
|
|
'success': False,
|
|
'message': '',
|
|
'current_commit_hash': ''
|
|
}
|
|
commit = None
|
|
version = self.get_current_version_info()
|
|
if version is False:
|
|
status['current_commit_hash'] = _(u'Unknown')
|
|
else:
|
|
status['current_commit_hash'] = version['version']
|
|
try:
|
|
headers = {'Accept': 'application/vnd.github.v3+json'}
|
|
r = requests.get(repository_url, headers=headers, timeout=10)
|
|
commit = r.json()
|
|
r.raise_for_status()
|
|
except requests.exceptions.HTTPError as e:
|
|
if commit:
|
|
if 'message' in commit:
|
|
status['message'] = _(u'HTTP Error') + ': ' + commit['message']
|
|
else:
|
|
status['message'] = _(u'HTTP Error') + ': ' + str(e)
|
|
except requests.exceptions.ConnectionError as e:
|
|
status['message'] = _(u'Connection error')
|
|
except requests.exceptions.Timeout:
|
|
status['message'] = _(u'Timeout while establishing connection')
|
|
except (requests.exceptions.RequestException, ValueError):
|
|
status['message'] = _(u'General error')
|
|
log.debug('Updater status: {}'.format(status['message'] or "OK"))
|
|
return status, commit
|