mirror of
https://github.com/janeczku/calibre-web
synced 2024-12-25 17:40:31 +00:00
d0fd1a4601
Fix for new users created Fix for options to the calibre-converter Only the first 300 chars are logged for the emailbody (spamming of logfile is prevented) Added class to "Random" header
511 lines
21 KiB
Python
511 lines
21 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from __future__ import print_function
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import smtplib
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import threading
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from datetime import datetime
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import logging
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import time
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import socket
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import sys
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import os
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from email.generator import Generator
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import web
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from flask_babel import gettext as _
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import re
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import gdriveutils as gd
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import subprocess
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try:
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from StringIO import StringIO
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from email.MIMEBase import MIMEBase
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from email.MIMEMultipart import MIMEMultipart
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from email.MIMEText import MIMEText
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except ImportError:
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from io import StringIO
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from email.mime.base import MIMEBase
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from email.mime.multipart import MIMEMultipart
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from email.mime.text import MIMEText
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from email import encoders
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from email.utils import formatdate
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from email.utils import make_msgid
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chunksize = 8192
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# task 'status' consts
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STAT_WAITING = 0
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STAT_FAIL = 1
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STAT_STARTED = 2
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STAT_FINISH_SUCCESS = 3
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#taskType consts
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TASK_EMAIL = 1
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TASK_CONVERT = 2
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TASK_UPLOAD = 3
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TASK_CONVERT_ANY = 4
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RET_FAIL = 0
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RET_SUCCESS = 1
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# For gdrive download book from gdrive to calibredir (temp dir for books), read contents in both cases and append
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# it in MIME Base64 encoded to
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def get_attachment(bookpath, filename):
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"""Get file as MIMEBase message"""
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calibrepath = web.config.config_calibre_dir
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if web.ub.config.config_use_google_drive:
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df = gd.getFileFromEbooksFolder(bookpath, filename)
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if df:
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datafile = os.path.join(calibrepath, bookpath, filename)
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if not os.path.exists(os.path.join(calibrepath, bookpath)):
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os.makedirs(os.path.join(calibrepath, bookpath))
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df.GetContentFile(datafile)
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else:
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return None
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file_ = open(datafile, 'rb')
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data = file_.read()
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file_.close()
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os.remove(datafile)
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else:
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try:
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file_ = open(os.path.join(calibrepath, bookpath, filename), 'rb')
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data = file_.read()
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file_.close()
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except IOError as e:
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web.app.logger.exception(e) # traceback.print_exc()
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web.app.logger.error(u'The requested file could not be read. Maybe wrong permissions?')
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return None
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attachment = MIMEBase('application', 'octet-stream')
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attachment.set_payload(data)
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encoders.encode_base64(attachment)
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attachment.add_header('Content-Disposition', 'attachment',
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filename=filename)
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return attachment
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# Class for sending email with ability to get current progress
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class emailbase():
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transferSize = 0
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progress = 0
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def data(self, msg):
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self.transferSize = len(msg)
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(code, resp) = smtplib.SMTP.data(self, msg)
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self.progress = 0
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return (code, resp)
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def send(self, strg):
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"""Send `strg' to the server."""
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if self.debuglevel > 0:
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print('send:', repr(strg[:300]), file=sys.stderr)
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if hasattr(self, 'sock') and self.sock:
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try:
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if self.transferSize:
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lock=threading.Lock()
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lock.acquire()
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self.transferSize = len(strg)
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lock.release()
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for i in range(0, self.transferSize, chunksize):
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if type(strg) == bytes:
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self.sock.send((strg[i:i+chunksize]))
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else:
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self.sock.send((strg[i:i + chunksize]).encode('utf-8'))
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lock.acquire()
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self.progress = i
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lock.release()
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else:
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self.sock.sendall(strg.encode('utf-8'))
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except socket.error:
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self.close()
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raise smtplib.SMTPServerDisconnected('Server not connected')
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else:
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raise smtplib.SMTPServerDisconnected('please run connect() first')
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def getTransferStatus(self):
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if self.transferSize:
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lock2 = threading.Lock()
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lock2.acquire()
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value = int((float(self.progress) / float(self.transferSize))*100)
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lock2.release()
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return str(value) + ' %'
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else:
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return "100 %"
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# Class for sending email with ability to get current progress, derived from emailbase class
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class email(emailbase, smtplib.SMTP):
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def __init__(self, *args, **kwargs):
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smtplib.SMTP.__init__(self, *args, **kwargs)
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# Class for sending ssl encrypted email with ability to get current progress, , derived from emailbase class
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class email_SSL(emailbase, smtplib.SMTP_SSL):
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def __init__(self, *args, **kwargs):
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smtplib.SMTP_SSL.__init__(self, *args, **kwargs)
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#Class for all worker tasks in the background
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class WorkerThread(threading.Thread):
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def __init__(self):
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self._stopevent = threading.Event()
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threading.Thread.__init__(self)
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self.status = 0
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self.current = 0
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self.last = 0
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self.queue = list()
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self.UIqueue = list()
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self.asyncSMTP=None
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self.id = 0
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# Main thread loop starting the different tasks
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def run(self):
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while not self._stopevent.isSet():
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doLock = threading.Lock()
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doLock.acquire()
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if self.current != self.last:
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doLock.release()
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if self.queue[self.current]['taskType'] == TASK_EMAIL:
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self._send_raw_email()
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if self.queue[self.current]['taskType'] == TASK_CONVERT:
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self._convert_any_format()
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if self.queue[self.current]['taskType'] == TASK_CONVERT_ANY:
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self._convert_any_format()
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# TASK_UPLOAD is handled implicitly
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self.current += 1
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else:
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doLock.release()
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time.sleep(1)
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def stop(self):
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self._stopevent.set()
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def get_send_status(self):
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if self.asyncSMTP:
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return self.asyncSMTP.getTransferStatus()
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else:
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return "0 %"
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def _delete_completed_tasks(self):
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for index, task in reversed(list(enumerate(self.UIqueue))):
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if task['progress'] == "100 %":
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# delete tasks
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self.queue.pop(index)
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self.UIqueue.pop(index)
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# if we are deleting entries before the current index, adjust the index
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self.current -= 1
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self.last = len(self.queue)
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def get_taskstatus(self):
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if self.current < len(self.queue):
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if self.UIqueue[self.current]['stat'] == STAT_STARTED:
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if self.queue[self.current]['taskType'] == TASK_EMAIL:
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self.UIqueue[self.current]['progress'] = self.get_send_status()
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self.UIqueue[self.current]['runtime'] = self._formatRuntime(
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datetime.now() - self.queue[self.current]['starttime'])
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return self.UIqueue
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def _convert_any_format(self):
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# convert book, and upload in case of google drive
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self.UIqueue[self.current]['stat'] = STAT_STARTED
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self.queue[self.current]['starttime'] = datetime.now()
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self.UIqueue[self.current]['formStarttime'] = self.queue[self.current]['starttime']
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curr_task = self.queue[self.current]['taskType']
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filename = self._convert_ebook_format()
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if filename:
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if web.ub.config.config_use_google_drive:
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gd.updateGdriveCalibreFromLocal()
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if curr_task == TASK_CONVERT:
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self.add_email(self.queue[self.current]['settings']['subject'], self.queue[self.current]['path'],
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filename, self.queue[self.current]['settings'], self.queue[self.current]['kindle'],
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self.UIqueue[self.current]['user'], self.queue[self.current]['title'],
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self.queue[self.current]['settings']['body'])
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def _convert_ebook_format(self):
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error_message = None
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file_path = self.queue[self.current]['file_path']
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bookid = self.queue[self.current]['bookid']
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format_old_ext = u'.' + self.queue[self.current]['settings']['old_book_format'].lower()
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format_new_ext = u'.' + self.queue[self.current]['settings']['new_book_format'].lower()
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# check to see if destination format already exists -
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# if it does - mark the conversion task as complete and return a success
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# this will allow send to kindle workflow to continue to work
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if os.path.isfile(file_path + format_new_ext):
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web.app.logger.info("Book id %d already converted to %s", bookid, format_new_ext)
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cur_book = web.db.session.query(web.db.Books).filter(web.db.Books.id == bookid).first()
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self.queue[self.current]['path'] = file_path
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self.queue[self.current]['title'] = cur_book.title
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self._handleSuccess()
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return file_path + format_new_ext
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else:
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web.app.logger.info("Book id %d - target format of %s does not exist. Moving forward with convert.", bookid, format_new_ext)
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# check if converter-executable is existing
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if not os.path.exists(web.ub.config.config_converterpath):
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# ToDo Text is not translated
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self._handleError(u"Convertertool %s not found" % web.ub.config.config_converterpath)
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return
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try:
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# check which converter to use kindlegen is "1"
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if format_old_ext == '.epub' and format_new_ext == '.mobi':
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if web.ub.config.config_ebookconverter == 1:
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if os.name == 'nt':
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command = web.ub.config.config_converterpath + u' "' + file_path + u'.epub"'
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if sys.version_info < (3, 0):
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command = command.encode(sys.getfilesystemencoding())
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else:
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command = [web.ub.config.config_converterpath, file_path + u'.epub']
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if sys.version_info < (3, 0):
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command = [x.encode(sys.getfilesystemencoding()) for x in command]
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if web.ub.config.config_ebookconverter == 2:
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# Linux py2.7 encode as list without quotes no empty element for parameters
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# linux py3.x no encode and as list without quotes no empty element for parameters
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# windows py2.7 encode as string with quotes empty element for parameters is okay
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# windows py 3.x no encode and as string with quotes empty element for parameters is okay
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# separate handling for windows and linux
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if os.name == 'nt':
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command = web.ub.config.config_converterpath + u' "' + file_path + format_old_ext + u'" "' + \
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file_path + format_new_ext + u'" ' + web.ub.config.config_calibre
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if sys.version_info < (3, 0):
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command = command.encode(sys.getfilesystemencoding())
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else:
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command = [web.ub.config.config_converterpath, (file_path + format_old_ext),
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(file_path + format_new_ext)]
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if web.ub.config.config_calibre:
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parameters = web.ub.config.config_calibre.split(" ")
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for param in parameters:
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command.append(param)
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if sys.version_info < (3, 0):
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command = [x.encode(sys.getfilesystemencoding()) for x in command]
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p = subprocess.Popen(command, stdout=subprocess.PIPE, universal_newlines=True)
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except OSError as e:
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self._handleError(_(u"Ebook-converter failed: %(error)s", error=e))
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return
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if web.ub.config.config_ebookconverter == 1:
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nextline = p.communicate()[0]
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# Format of error message (kindlegen translates its output texts):
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# Error(prcgen):E23006: Language not recognized in metadata.The dc:Language field is mandatory.Aborting.
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conv_error = re.search(".*\(.*\):(E\d+):\s(.*)", nextline, re.MULTILINE)
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# If error occoures, store error message for logfile
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if conv_error:
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error_message = _(u"Kindlegen failed with Error %(error)s. Message: %(message)s",
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error=conv_error.group(1), message=conv_error.group(2).strip())
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web.app.logger.debug("convert_kindlegen: " + nextline)
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else:
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while p.poll() is None:
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nextline = p.stdout.readline()
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if os.name == 'nt' and sys.version_info < (3, 0):
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nextline = nextline.decode('windows-1252')
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web.app.logger.debug(nextline.strip('\r\n'))
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# parse progress string from calibre-converter
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progress = re.search("(\d+)%\s.*", nextline)
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if progress:
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self.UIqueue[self.current]['progress'] = progress.group(1) + ' %'
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# process returncode
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check = p.returncode
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# kindlegen returncodes
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# 0 = Info(prcgen):I1036: Mobi file built successfully
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# 1 = Info(prcgen):I1037: Mobi file built with WARNINGS!
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# 2 = Info(prcgen):I1038: MOBI file could not be generated because of errors!
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if (check < 2 and web.ub.config.config_ebookconverter == 1) or \
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(check == 0 and web.ub.config.config_ebookconverter == 2):
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cur_book = web.db.session.query(web.db.Books).filter(web.db.Books.id == bookid).first()
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if os.path.isfile(file_path + format_new_ext):
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new_format = web.db.Data(name=cur_book.data[0].name,
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book_format=self.queue[self.current]['settings']['new_book_format'].upper(),
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book=bookid, uncompressed_size=os.path.getsize(file_path + format_new_ext))
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cur_book.data.append(new_format)
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web.db.session.commit()
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self.queue[self.current]['path'] = cur_book.path
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self.queue[self.current]['title'] = cur_book.title
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if web.ub.config.config_use_google_drive:
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os.remove(file_path + format_old_ext)
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self._handleSuccess()
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return file_path + format_new_ext
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else:
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error_message = format_new_ext.upper() + ' format not found on disk'
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web.app.logger.info("ebook converter failed with error while converting book")
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if not error_message:
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error_message = 'Ebook converter failed with unknown error'
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self._handleError(error_message)
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return
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def add_convert(self, file_path, bookid, user_name, taskMessage, settings, kindle_mail=None):
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addLock = threading.Lock()
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addLock.acquire()
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if self.last >= 20:
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self._delete_completed_tasks()
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# progress, runtime, and status = 0
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self.id += 1
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task = TASK_CONVERT_ANY
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if kindle_mail:
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task = TASK_CONVERT
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self.queue.append({'file_path':file_path, 'bookid':bookid, 'starttime': 0, 'kindle': kindle_mail,
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'taskType': task, 'settings':settings})
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self.UIqueue.append({'user': user_name, 'formStarttime': '', 'progress': " 0 %", 'taskMess': taskMessage,
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'runtime': '0 s', 'stat': STAT_WAITING,'id': self.id, 'taskType': task } )
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self.last=len(self.queue)
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addLock.release()
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def add_email(self, subject, filepath, attachment, settings, recipient, user_name, taskMessage,
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text):
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# if more than 20 entries in the list, clean the list
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addLock = threading.Lock()
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addLock.acquire()
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if self.last >= 20:
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self._delete_completed_tasks()
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# progress, runtime, and status = 0
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self.id += 1
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self.queue.append({'subject':subject, 'attachment':attachment, 'filepath':filepath,
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'settings':settings, 'recipent':recipient, 'starttime': 0,
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'taskType': TASK_EMAIL, 'text':text})
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self.UIqueue.append({'user': user_name, 'formStarttime': '', 'progress': " 0 %", 'taskMess': taskMessage,
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'runtime': '0 s', 'stat': STAT_WAITING,'id': self.id, 'taskType': TASK_EMAIL })
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self.last=len(self.queue)
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addLock.release()
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def add_upload(self, user_name, taskMessage):
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# if more than 20 entries in the list, clean the list
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addLock = threading.Lock()
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addLock.acquire()
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if self.last >= 20:
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self._delete_completed_tasks()
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# progress=100%, runtime=0, and status finished
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self.id += 1
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self.queue.append({'starttime': datetime.now(), 'taskType': TASK_UPLOAD})
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self.UIqueue.append({'user': user_name, 'formStarttime': '', 'progress': "100 %", 'taskMess': taskMessage,
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'runtime': '0 s', 'stat': STAT_FINISH_SUCCESS,'id': self.id, 'taskType': TASK_UPLOAD})
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self.UIqueue[self.current]['formStarttime'] = self.queue[self.current]['starttime']
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self.last=len(self.queue)
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addLock.release()
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def _send_raw_email(self):
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self.queue[self.current]['starttime'] = datetime.now()
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self.UIqueue[self.current]['formStarttime'] = self.queue[self.current]['starttime']
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# self.queue[self.current]['status'] = STAT_STARTED
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self.UIqueue[self.current]['stat'] = STAT_STARTED
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obj=self.queue[self.current]
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# create MIME message
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msg = MIMEMultipart()
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msg['Subject'] = self.queue[self.current]['subject']
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msg['Message-Id'] = make_msgid('calibre-web')
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msg['Date'] = formatdate(localtime=True)
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text = self.queue[self.current]['text']
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msg.attach(MIMEText(text.encode('UTF-8'), 'plain', 'UTF-8'))
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if obj['attachment']:
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result = get_attachment(obj['filepath'], obj['attachment'])
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if result:
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msg.attach(result)
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else:
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self._handleError(u"Attachment not found")
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return
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msg['From'] = obj['settings']["mail_from"]
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msg['To'] = obj['recipent']
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use_ssl = int(obj['settings'].get('mail_use_ssl', 0))
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try:
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# convert MIME message to string
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fp = StringIO()
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gen = Generator(fp, mangle_from_=False)
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gen.flatten(msg)
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msg = fp.getvalue()
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# send email
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timeout = 600 # set timeout to 5mins
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org_stderr = sys.stderr
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sys.stderr = StderrLogger()
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if use_ssl == 2:
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self.asyncSMTP = email_SSL(obj['settings']["mail_server"], obj['settings']["mail_port"], timeout)
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else:
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self.asyncSMTP = email(obj['settings']["mail_server"], obj['settings']["mail_port"], timeout)
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# link to logginglevel
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if web.ub.config.config_log_level != logging.DEBUG:
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self.asyncSMTP.set_debuglevel(0)
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else:
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self.asyncSMTP.set_debuglevel(1)
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if use_ssl == 1:
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self.asyncSMTP.starttls()
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if obj['settings']["mail_password"]:
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self.asyncSMTP.login(str(obj['settings']["mail_login"]), str(obj['settings']["mail_password"]))
|
|
self.asyncSMTP.sendmail(obj['settings']["mail_from"], obj['recipent'], msg)
|
|
self.asyncSMTP.quit()
|
|
self._handleSuccess()
|
|
sys.stderr = org_stderr
|
|
|
|
except (MemoryError) as e:
|
|
self._handleError(u'Error sending email: ' + e.message)
|
|
return None
|
|
except (smtplib.SMTPException) as e:
|
|
if hasattr(e, "smtp_error"):
|
|
text = e.smtp_error.replace("\n",'. ')
|
|
else:
|
|
text = ''
|
|
self._handleError(u'Error sending email: ' + text)
|
|
return None
|
|
except (socket.error) as e:
|
|
self._handleError(u'Error sending email: ' + e.strerror)
|
|
return None
|
|
|
|
def _formatRuntime(self, runtime):
|
|
self.UIqueue[self.current]['rt'] = runtime.total_seconds()
|
|
val = re.split('\:|\.', str(runtime))[0:3]
|
|
erg = list()
|
|
for v in val:
|
|
if int(v) > 0:
|
|
erg.append(v)
|
|
retVal = (':'.join(erg)).lstrip('0') + ' s'
|
|
if retVal == ' s':
|
|
retVal = '0 s'
|
|
return retVal
|
|
|
|
def _handleError(self, error_message):
|
|
web.app.logger.error(error_message)
|
|
# self.queue[self.current]['status'] = STAT_FAIL
|
|
self.UIqueue[self.current]['stat'] = STAT_FAIL
|
|
self.UIqueue[self.current]['progress'] = "100 %"
|
|
self.UIqueue[self.current]['runtime'] = self._formatRuntime(
|
|
datetime.now() - self.queue[self.current]['starttime'])
|
|
self.UIqueue[self.current]['message'] = error_message
|
|
|
|
def _handleSuccess(self):
|
|
# self.queue[self.current]['status'] = STAT_FINISH_SUCCESS
|
|
self.UIqueue[self.current]['stat'] = STAT_FINISH_SUCCESS
|
|
self.UIqueue[self.current]['progress'] = "100 %"
|
|
self.UIqueue[self.current]['runtime'] = self._formatRuntime(
|
|
datetime.now() - self.queue[self.current]['starttime'])
|
|
|
|
|
|
# Enable logging of smtp lib debug output
|
|
class StderrLogger(object):
|
|
|
|
buffer = ''
|
|
|
|
def __init__(self):
|
|
self.logger = web.app.logger
|
|
|
|
def write(self, message):
|
|
if message == '\n':
|
|
self.logger.debug(self.buffer)
|
|
print(self.buffer)
|
|
self.buffer = ''
|
|
else:
|
|
self.buffer += message
|
|
|