calibre-web/cps/gdriveutils.py

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from pydrive.auth import GoogleAuth
from pydrive.drive import GoogleDrive
import os, time
from ub import config
from sqlalchemy import *
from sqlalchemy import exc
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import *
from apiclient import errors
import web
dbpath = os.path.join(os.path.normpath(os.path.dirname(os.path.realpath(__file__)) + os.sep + ".." + os.sep), "gdrive.db")
engine = create_engine('sqlite:///{0}'.format(dbpath), echo=False)
Base = declarative_base()
# Open session for database connection
Session = sessionmaker()
Session.configure(bind=engine)
session = Session()
class GdriveId(Base):
__tablename__='gdrive_ids'
id = Column(Integer, primary_key=True)
gdrive_id = Column(Integer, unique=True)
path = Column(String)
def __repr__(self):
return str(self.path)
if not os.path.exists(dbpath):
try:
Base.metadata.create_all(engine)
except Exception:
raise
def getDrive(gauth=None):
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)
def getEbooksFolder(drive=None):
if not drive:
drive = getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
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]
def getEbooksFolderId(drive=None):
storedPathName=session.query(GdriveId).filter(GdriveId.path == '/').first()
if storedPathName:
return storedPathName.gdrive_id
else:
gDriveId=GdriveId()
gDriveId.gdrive_id=getEbooksFolder(drive)['id']
gDriveId.path='/'
session.merge(gDriveId)
session.commit()
return
def getFolderInFolder(parentId, folderName, drive=None):
if not drive:
drive = getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
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()
return fileList[0]
def getFile(pathId, fileName, drive=None):
if not drive:
drive = getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
metaDataFile="'%s' in parents and trashed = false and title = '%s'" % (pathId, fileName.replace("'", "\\'"))
fileList = drive.ListFile({'q': metaDataFile}).GetList()
return fileList[0]
def getFolderId(path, drive=None):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
currentFolderId=getEbooksFolderId(drive)
sqlCheckPath=path if path[-1] =='/' else path + '/'
storedPathName=session.query(GdriveId).filter(GdriveId.path == sqlCheckPath).first()
if not storedPathName:
dbChange=False
s=path.split('/')
for i, x in enumerate(s):
if len(x) > 0:
currentPath="/".join(s[:i+1])
if currentPath[-1] != '/':
currentPath = currentPath + '/'
storedPathName=session.query(GdriveId).filter(GdriveId.path == currentPath).first()
if storedPathName:
currentFolderId=storedPathName.gdrive_id
else:
currentFolderId=getFolderInFolder(currentFolderId, x, drive)['id']
gDriveId=GdriveId()
gDriveId.gdrive_id=currentFolderId
gDriveId.path=currentPath
session.merge(gDriveId)
dbChange=True
if dbChange:
session.commit()
else:
currentFolderId=storedPathName.gdrive_id
return currentFolderId
def getFileFromEbooksFolder(drive, path, fileName):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
if path:
sqlCheckPath=path if path[-1] =='/' else path + '/'
folderId=getFolderId(path, drive)
else:
folderId=getEbooksFolderId(drive)
return getFile(folderId, fileName, drive)
def copyDriveFileRemote(drive, origin_file_id, copy_title):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
copied_file = {'title': copy_title}
try:
file_data = drive.auth.service.files().copy(
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
def downloadFile(drive, path, filename, output):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
f=getFileFromEbooksFolder(drive, path, filename)
f.GetContentFile(output)
def backupCalibreDbAndOptionalDownload(drive, f=None):
pass
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
metaDataFile="'%s' in parents and title = 'metadata.db' and trashed = false" % getEbooksFolderId()
fileList = drive.ListFile({'q': metaDataFile}).GetList()
databaseFile=fileList[0]
if f:
databaseFile.GetContentFile(f)
def copyToDrive(drive, uploadFile, createRoot, replaceFiles,
ignoreFiles=[],
parent=None, prevDir=''):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
isInitial=not bool(parent)
if not parent:
parent=getEbooksFolder(drive)
if os.path.isdir(os.path.join(prevDir,uploadFile)):
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):
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:
parent=existingFolder[0]
for f in os.listdir(os.path.join(prevDir,uploadFile)):
if f not in ignoreFiles:
copyToDrive(drive, f, True, replaceFiles, ignoreFiles, parent, os.path.join(prevDir,uploadFile))
else:
if os.path.basename(uploadFile) not in ignoreFiles:
existingFiles=drive.ListFile({'q' : "title = '%s' and '%s' in parents and trashed = false" % (os.path.basename(uploadFile), parent['id'])}).GetList()
if len(existingFiles) > 0:
driveFile = drive.CreateFile({'title': os.path.basename(uploadFile), 'parents' : [{"kind": "drive#fileLink", 'id' : parent['id']}], })
else:
driveFile=existingFiles[0]
driveFile.SetContentFile(os.path.join(prevDir,uploadFile))
driveFile.Upload()
def watchChange(drive, channel_id, channel_type, channel_address,
channel_token=None, expiration=None):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
"""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 = {
'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.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.
"""
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
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()
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.
"""
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
service=drive.auth.service
body = {
'id': channel_id,
'resourceId': resource_id
}
return drive.auth.service.channels().stop(body=body).execute()
def getChangeById (drive, change_id):
if not drive:
drive=getDrive()
if drive.auth.access_token_expired:
drive.auth.Refresh()
"""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
except errors.HttpError, error:
web.app.logger.exception(error)
return None