calibre-web/cps/gdriveutils.py

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try:
from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
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from apiclient import errors
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except ImportError:
pass
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import os
from ub import config
import cli
from sqlalchemy import *
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import *
import web
engine = create_engine('sqlite:///{0}'.format(cli.gdpath), echo=False)
Base = declarative_base()
# Open session for database connection
Session = sessionmaker()
Session.configure(bind=engine)
session = scoped_session(Session)
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class GdriveId(Base):
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__tablename__ = 'gdrive_ids'
id = Column(Integer, primary_key=True)
gdrive_id = Column(Integer, unique=True)
path = Column(String)
__table_args__ = (UniqueConstraint('gdrive_id', 'path', name='_gdrive_path_uc'),)
def __repr__(self):
return str(self.path)
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class PermissionAdded(Base):
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__tablename__ = 'permissions_added'
id = Column(Integer, primary_key=True)
gdrive_id = Column(Integer, unique=True)
def __repr__(self):
return str(self.gdrive_id)
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def migrate():
if not engine.dialect.has_table(engine.connect(), "permissions_added"):
PermissionAdded.__table__.create(bind = engine)
for sql in session.execute("select sql from sqlite_master where type='table'"):
if 'CREATE TABLE gdrive_ids' in sql[0]:
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currUniqueConstraint = 'UNIQUE (gdrive_id)'
if currUniqueConstraint in sql[0]:
sql=sql[0].replace(currUniqueConstraint, 'UNIQUE (gdrive_id, path)')
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sql=sql.replace(GdriveId.__tablename__, GdriveId.__tablename__ + '2')
session.execute(sql)
session.execute('INSERT INTO gdrive_ids2 (id, gdrive_id, path) SELECT id, gdrive_id, path FROM gdrive_ids;')
session.commit()
session.execute('DROP TABLE %s' % 'gdrive_ids')
session.execute('ALTER TABLE gdrive_ids2 RENAME to gdrive_ids')
break
if not os.path.exists(cli.gdpath):
try:
Base.metadata.create_all(engine)
except Exception:
raise
migrate()
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def getDrive(drive=None, gauth=None):
if not drive:
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if not gauth:
gauth = GoogleAuth(settings_file='settings.yaml')
# Try to load saved client credentials
gauth.LoadCredentialsFile("gdrive_credentials")
if gauth.access_token_expired:
# Refresh them if expired
gauth.Refresh()
else:
# Initialize the saved creds
gauth.Authorize()
# Save the current credentials to a file
return GoogleDrive(gauth)
if drive.auth.access_token_expired:
drive.auth.Refresh()
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return drive
def getEbooksFolder(drive=None):
drive = getDrive(drive)
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ebooksFolder = "title = '%s' and 'root' in parents and mimeType = 'application/vnd.google-apps.folder' and trashed = false" % config.config_google_drive_folder
fileList = drive.ListFile({'q': ebooksFolder}).GetList()
return fileList[0]
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def getEbooksFolderId(drive=None):
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storedPathName = session.query(GdriveId).filter(GdriveId.path == '/').first()
if storedPathName:
return storedPathName.gdrive_id
else:
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gDriveId = GdriveId()
gDriveId.gdrive_id = getEbooksFolder(drive)['id']
gDriveId.path = '/'
session.merge(gDriveId)
session.commit()
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return
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def getFolderInFolder(parentId, folderName, drive=None):
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drive = getDrive(drive)
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folder = "title = '%s' and '%s' in parents and mimeType = 'application/vnd.google-apps.folder' and trashed = false" % (folderName.replace("'", "\\'"), parentId)
fileList = drive.ListFile({'q': folder}).GetList()
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return fileList[0]
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def getFile(pathId, fileName, drive=None):
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drive = getDrive(drive)
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metaDataFile = "'%s' in parents and trashed = false and title = '%s'" % (pathId, fileName.replace("'", "\\'"))
fileList = drive.ListFile({'q': metaDataFile}).GetList()
return fileList[0]
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def getFolderId(path, drive=None):
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drive = getDrive(drive)
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currentFolderId = getEbooksFolderId(drive)
sqlCheckPath = path if path[-1] == '/' else path + '/'
storedPathName = session.query(GdriveId).filter(GdriveId.path == sqlCheckPath).first()
if not storedPathName:
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dbChange = False
s = path.split('/')
for i, x in enumerate(s):
if len(x) > 0:
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currentPath = "/".join(s[:i+1])
if currentPath[-1] != '/':
currentPath = currentPath + '/'
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storedPathName = session.query(GdriveId).filter(GdriveId.path == currentPath).first()
if storedPathName:
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currentFolderId = storedPathName.gdrive_id
else:
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currentFolderId = getFolderInFolder(currentFolderId, x, drive)['id']
gDriveId = GdriveId()
gDriveId.gdrive_id = currentFolderId
gDriveId.path = currentPath
session.merge(gDriveId)
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dbChange = True
if dbChange:
session.commit()
else:
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currentFolderId = storedPathName.gdrive_id
return currentFolderId
def getFileFromEbooksFolder(drive, path, fileName):
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drive = getDrive(drive)
if path:
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# sqlCheckPath=path if path[-1] =='/' else path + '/'
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folderId = getFolderId(path, drive)
else:
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folderId = getEbooksFolderId(drive)
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return getFile(folderId, fileName, drive)
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def copyDriveFileRemote(drive, origin_file_id, copy_title):
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drive = getDrive(drive)
copied_file = {'title': copy_title}
try:
file_data = drive.auth.service.files().copy(
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fileId = origin_file_id, body=copied_file).execute()
return drive.CreateFile({'id': file_data['id']})
except errors.HttpError as error:
print ('An error occurred: %s' % error)
return None
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def downloadFile(drive, path, filename, output):
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drive = getDrive(drive)
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f = getFileFromEbooksFolder(drive, path, filename)
f.GetContentFile(output)
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def backupCalibreDbAndOptionalDownload(drive, f=None):
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drive = getDrive(drive)
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metaDataFile = "'%s' in parents and title = 'metadata.db' and trashed = false" % getEbooksFolderId()
fileList = drive.ListFile({'q': metaDataFile}).GetList()
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databaseFile = fileList[0]
if f:
databaseFile.GetContentFile(f)
def copyToDrive(drive, uploadFile, createRoot, replaceFiles,
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ignoreFiles=None,
parent=None, prevDir=''):
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ignoreFiles = ignoreFiles or []
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drive = getDrive(drive)
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isInitial = not bool(parent)
if not parent:
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parent = getEbooksFolder(drive)
if os.path.isdir(os.path.join(prevDir,uploadFile)):
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existingFolder = drive.ListFile({'q': "title = '%s' and '%s' in parents and trashed = false" % (os.path.basename(uploadFile), parent['id'])}).GetList()
if len(existingFolder) == 0 and (not isInitial or createRoot):
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parent = drive.CreateFile({'title': os.path.basename(uploadFile), 'parents': [{"kind": "drive#fileLink", 'id': parent['id']}],
"mimeType": "application/vnd.google-apps.folder"})
parent.Upload()
else:
if (not isInitial or createRoot) and len(existingFolder) > 0:
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parent = existingFolder[0]
for f in os.listdir(os.path.join(prevDir, uploadFile)):
if f not in ignoreFiles:
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copyToDrive(drive, f, True, replaceFiles, ignoreFiles, parent, os.path.join(prevDir, uploadFile))
else:
if os.path.basename(uploadFile) not in ignoreFiles:
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existingFiles = drive.ListFile({'q': "title = '%s' and '%s' in parents and trashed = false" % (os.path.basename(uploadFile), parent['id'])}).GetList()
if len(existingFiles) > 0:
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driveFile = existingFiles[0]
else:
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driveFile = drive.CreateFile({'title': os.path.basename(uploadFile), 'parents': [{"kind":"drive#fileLink", 'id': parent['id']}], })
driveFile.SetContentFile(os.path.join(prevDir, uploadFile))
driveFile.Upload()
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def uploadFileToEbooksFolder(drive, destFile, f):
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drive = getDrive(drive)
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parent = getEbooksFolder(drive)
splitDir = destFile.split('/')
for i, x in enumerate(splitDir):
if i == len(splitDir)-1:
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existingFiles = drive.ListFile({'q': "title = '%s' and '%s' in parents and trashed = false" % (x, parent['id'])}).GetList()
if len(existingFiles) > 0:
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driveFile = existingFiles[0]
else:
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driveFile = drive.CreateFile({'title': x, 'parents': [{"kind": "drive#fileLink", 'id': parent['id']}],})
driveFile.SetContentFile(f)
driveFile.Upload()
else:
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existingFolder = drive.ListFile({'q': "title = '%s' and '%s' in parents and trashed = false" % (x, parent['id'])}).GetList()
if len(existingFolder) == 0:
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parent = drive.CreateFile({'title': x, 'parents': [{"kind": "drive#fileLink", 'id': parent['id']}],
"mimeType": "application/vnd.google-apps.folder"})
parent.Upload()
else:
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parent = existingFolder[0]
def watchChange(drive, channel_id, channel_type, channel_address,
channel_token=None, expiration=None):
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drive = getDrive(drive)
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# Watch for all changes to a user's Drive.
# Args:
# service: Drive API service instance.
# channel_id: Unique string that identifies this channel.
# channel_type: Type of delivery mechanism used for this channel.
# channel_address: Address where notifications are delivered.
# channel_token: An arbitrary string delivered to the target address with
# each notification delivered over this channel. Optional.
# channel_address: Address where notifications are delivered. Optional.
# Returns:
# The created channel if successful
# Raises:
# apiclient.errors.HttpError: if http request to create channel fails.
body = {
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'id': channel_id,
'type': channel_type,
'address': channel_address
}
if channel_token:
body['token'] = channel_token
if expiration:
body['expiration'] = expiration
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return drive.auth.service.changes().watch(body=body).execute()
def watchFile(drive, file_id, channel_id, channel_type, channel_address,
channel_token=None, expiration=None):
"""Watch for any changes to a specific file.
Args:
service: Drive API service instance.
file_id: ID of the file to watch.
channel_id: Unique string that identifies this channel.
channel_type: Type of delivery mechanism used for this channel.
channel_address: Address where notifications are delivered.
channel_token: An arbitrary string delivered to the target address with
each notification delivered over this channel. Optional.
channel_address: Address where notifications are delivered. Optional.
Returns:
The created channel if successful
Raises:
apiclient.errors.HttpError: if http request to create channel fails.
"""
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drive = getDrive(drive)
body = {
'id': channel_id,
'type': channel_type,
'address': channel_address
}
if channel_token:
body['token'] = channel_token
if expiration:
body['expiration'] = expiration
return drive.auth.service.files().watch(fileId=file_id, body=body).execute()
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def stopChannel(drive, channel_id, resource_id):
"""Stop watching to a specific channel.
Args:
service: Drive API service instance.
channel_id: ID of the channel to stop.
resource_id: Resource ID of the channel to stop.
Raises:
apiclient.errors.HttpError: if http request to create channel fails.
"""
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drive = getDrive(drive)
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# service=drive.auth.service
body = {
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'id': channel_id,
'resourceId': resource_id
}
return drive.auth.service.channels().stop(body=body).execute()
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def getChangeById (drive, change_id):
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drive = getDrive(drive)
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# Print a single Change resource information.
#
# Args:
# service: Drive API service instance.
# change_id: ID of the Change resource to retrieve.
try:
change = drive.auth.service.changes().get(changeId=change_id).execute()
return change
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except (errors.HttpError, error):
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web.app.logger.exception(error)
return None