mirror of
https://github.com/noDRM/DeDRM_tools.git
synced 2025-10-23 23:07:47 -04:00
287 lines
11 KiB
Python
287 lines
11 KiB
Python
#!/usr/bin/env python
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# vim:ts=4:sw=4:softtabstop=4:smarttab:expandtab
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import sys
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sys.path.append('lib')
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import os, os.path, urllib
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import subprocess
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from subprocess import Popen, PIPE, STDOUT
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import subasyncio
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from subasyncio import Process
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import Tkinter
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import Tkconstants
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import tkFileDialog
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import tkMessageBox
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from scrolltextwidget import ScrolledText
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import binascii
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import hashlib
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#
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# Returns the SHA1 digest of "message"
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#
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def SHA1(message):
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ctx = hashlib.sha1()
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ctx.update(message)
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return ctx.hexdigest()
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class MainDialog(Tkinter.Frame):
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def __init__(self, root):
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Tkinter.Frame.__init__(self, root, border=5)
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self.root = root
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self.interval = 2000
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self.p2 = None
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self.status = Tkinter.Label(self, text='Remove Encryption from Kindle for Mac Mobi eBook')
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self.status.pack(fill=Tkconstants.X, expand=1)
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body = Tkinter.Frame(self)
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body.pack(fill=Tkconstants.X, expand=1)
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sticky = Tkconstants.E + Tkconstants.W
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body.grid_columnconfigure(1, weight=2)
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Tkinter.Label(body, text='Locate your Kindle Applications').grid(row=0, sticky=Tkconstants.E)
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self.k4mpath = Tkinter.Entry(body, width=50)
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self.k4mpath.grid(row=0, column=1, sticky=sticky)
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self.appname = '/Applications/Kindle for Mac.app'
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if not os.path.exists(self.appname):
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self.appname = '/Applications/Kindle.app'
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cwd = self.appname
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cwd = cwd.encode('utf-8')
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self.k4mpath.insert(0, cwd)
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button = Tkinter.Button(body, text="...", command=self.get_k4mpath)
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button.grid(row=0, column=2)
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Tkinter.Label(body, text='Directory for Unencrypted Output File').grid(row=1, sticky=Tkconstants.E)
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self.outpath = Tkinter.Entry(body, width=50)
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self.outpath.grid(row=1, column=1, sticky=sticky)
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desktoppath = os.getenv('HOME') + '/Desktop/'
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desktoppath = desktoppath.encode('utf-8')
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self.outpath.insert(0, desktoppath)
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button = Tkinter.Button(body, text="...", command=self.get_outpath)
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button.grid(row=1, column=2)
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msg1 = 'Conversion Log \n\n'
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self.stext = ScrolledText(body, bd=5, relief=Tkconstants.RIDGE, height=15, width=60, wrap=Tkconstants.WORD)
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self.stext.grid(row=3, column=0, columnspan=2,sticky=sticky)
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self.stext.insert(Tkconstants.END,msg1)
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buttons = Tkinter.Frame(self)
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buttons.pack()
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self.sbotton = Tkinter.Button(
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buttons, text="Start", width=10, command=self.convertit)
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self.sbotton.pack(side=Tkconstants.LEFT)
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Tkinter.Frame(buttons, width=10).pack(side=Tkconstants.LEFT)
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self.qbutton = Tkinter.Button(
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buttons, text="Quit", width=10, command=self.quitting)
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self.qbutton.pack(side=Tkconstants.RIGHT)
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# read from subprocess pipe without blocking
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# invoked every interval via the widget "after"
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# option being used, so need to reset it for the next time
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def processPipe(self):
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poll = self.p2.wait('nowait')
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if poll != None:
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text = self.p2.readerr()
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text += self.p2.read()
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msg = text + '\n\n' + 'Encryption successfully removed\n'
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if poll != 0:
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msg = text + '\n\n' + 'Error: Encryption Removal Failed\n'
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self.showCmdOutput(msg)
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self.p2 = None
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self.sbotton.configure(state='normal')
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return
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text = self.p2.readerr()
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text += self.p2.read()
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self.showCmdOutput(text)
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# make sure we get invoked again by event loop after interval
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self.stext.after(self.interval,self.processPipe)
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return
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# post output from subprocess in scrolled text widget
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def showCmdOutput(self, msg):
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if msg and msg !='':
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msg = msg.encode('utf-8')
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self.stext.insert(Tkconstants.END,msg)
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self.stext.yview_pickplace(Tkconstants.END)
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return
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# run as a subprocess via pipes and collect stdout
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def mobirdr(self, infile, outfile, pidnum):
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cmdline = 'python ./lib/mobidedrm.py "' + infile + '" "' + outfile + '" "' + pidnum + '"'
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cmdline = cmdline.encode(sys.getfilesystemencoding())
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p2 = Process(cmdline, shell=True, bufsize=1, stdin=None, stdout=PIPE, stderr=PIPE, close_fds=False)
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return p2
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def get_k4mpath(self):
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k4mpath = tkFileDialog.askopenfilename(
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parent=None, title='Select Your Kindle Application',
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defaultextension='.app', filetypes=[('Kindle for Mac Application', '.app')])
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if k4mpath:
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k4mpath = os.path.normpath(k4mpath)
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self.k4mpath.delete(0, Tkconstants.END)
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self.k4mpath.insert(0, k4mpath)
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return
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def get_outpath(self):
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cwd = os.getcwdu()
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cwd = cwd.encode('utf-8')
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outpath = tkFileDialog.askdirectory(
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parent=None, title='Directory to Put Non-DRM eBook into',
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initialdir=cwd, initialfile=None)
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if outpath:
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outpath = os.path.normpath(outpath)
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self.outpath.delete(0, Tkconstants.END)
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self.outpath.insert(0, outpath)
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return
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def quitting(self):
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# kill any still running subprocess
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if self.p2 != None:
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if (self.p2.wait('nowait') == None):
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self.p2.terminate()
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self.root.destroy()
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# run as a gdb subprocess via pipes and collect stdout
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def gdbrdr(self, k4mappfile, gdbcmds):
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cmdline = 'gdb -q -silent -readnow -batch -x ' + gdbcmds + ' "' + k4mappfile + '"'
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cmdline = cmdline.encode(sys.getfilesystemencoding())
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p3 = Process(cmdline, shell=True, bufsize=1, stdin=None, stdout=PIPE, stderr=PIPE, close_fds=False)
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poll = p3.wait('wait')
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results = p3.read()
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pidnum = 'NOTAPID+'
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topazbook = 0
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bookpath = 'book not found'
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# parse the gdb results to get the last pid and the last azw/prc file name in the gdb listing
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reslst = results.split('\n')
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cnt = len(reslst)
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for j in xrange(cnt):
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resline = reslst[j]
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pp = resline.find('PID is ')
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if pp == 0:
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pidnum = resline[7:]
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topazbook = 0
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if pp > 0:
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pidnum = resline[13:]
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topazbook = 1
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fp = resline.find('File is ')
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if fp >= 0:
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tp1 = resline.find('.azw')
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tp2 = resline.find('.prc')
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if tp1 >= 0 or tp2 >= 0:
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bookpath = resline[8:]
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# put code here to get pid and file name
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return pidnum, bookpath, topazbook
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# convert from 8 digit PID to proper 10 digit PID
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def checksumPid(self, s):
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letters = "ABCDEFGHIJKLMNPQRSTUVWXYZ123456789"
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crc = (~binascii.crc32(s,-1))&0xFFFFFFFF
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crc = crc ^ (crc >> 16)
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res = s
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l = len(letters)
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for i in (0,1):
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b = crc & 0xff
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pos = (b // l) ^ (b % l)
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res += letters[pos%l]
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crc >>= 8
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return res
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# start the process
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def convertit(self):
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# dictionary of all known Kindle for Mac Binaries
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sha1_app_digests = {
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'e197ed2171ceb44a35c24bd30263b7253331694f' : 'gdb_kindle_cmds_r1.txt',
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'4f702436171f84acc13bdf9f94fae91525aecef5' : 'gdb_kindle_cmds_r2.txt',
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'no_sha1_digest_key_here_________________' : 'no_gdb_kindle_cmds.txt',
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}
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# now disable the button to prevent multiple launches
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self.sbotton.configure(state='disabled')
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k4mpath = self.k4mpath.get()
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outpath = self.outpath.get()
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# basic error checking
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if not k4mpath or not os.path.exists(k4mpath):
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self.status['text'] = 'Error: Specified Kindle for Mac Application does not exist'
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self.sbotton.configure(state='normal')
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return
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if not outpath:
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self.status['text'] = 'Error: No output directory specified'
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self.sbotton.configure(state='normal')
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return
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if not os.path.isdir(outpath):
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self.status['text'] = 'Error specified outputdirectory does not exist'
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self.sbotton.configure(state='normal')
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return
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if not os.path.isfile('/usr/bin/gdb'):
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self.status['text'] = 'Error: gdb does not exist, install the XCode Develoepr Tools'
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self.sbotton.configure(state='normal')
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return
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# now check if the K4M app bianry is known and if so which gdbcmds to use
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binary_app_file = k4mpath + '/Contents/MacOS/Kindle for Mac'
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if not os.path.exists(binary_app_file):
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binary_app_file = k4mpath + '/Contents/MacOS/Kindle'
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digest = SHA1(file(binary_app_file, 'rb').read())
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# print digest
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gdbcmds = None
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if digest in sha1_app_digests:
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gdbcmds = sha1_app_digests[digest]
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else :
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self.status['text'] = 'Error: Kindle Application does not match any known version, sha1sum is ' + digest
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self.sbotton.configure(state='normal')
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return
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# run Kindle for Mac in gdb to get what we need
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(pidnum, bookpath, topazbook) = self.gdbrdr(k4mpath, gdbcmds)
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if topazbook == 1:
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log = 'Warning: ' + bookpath + ' is a Topaz book\n'
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log += '\n\n'
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log += 'To convert this book please use the Topaz Tools\n'
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log += 'With the 8 digit PID: "' + pidnum + '"\n'
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log += '\n\n'
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log = log.encode('utf-8')
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self.stext.insert(Tkconstants.END,log)
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return
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pidnum = self.checksumPid(pidnum)
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# default output file name to be input file name + '_nodrm.mobi'
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initname = os.path.splitext(os.path.basename(bookpath))[0]
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initname += '_nodrm.mobi'
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outpath += '/' + initname
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log = 'Command = "python mobidedrm.py"\n'
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log += 'Mobi Path = "'+ bookpath + '"\n'
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log += 'Output file = "' + outpath + '"\n'
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log += 'PID = "' + pidnum + '"\n'
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log += '\n\n'
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log += 'Please Wait ...\n\n'
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log = log.encode('utf-8')
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self.stext.insert(Tkconstants.END,log)
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self.p2 = self.mobirdr(bookpath, outpath, pidnum)
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# python does not seem to allow you to create
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# your own eventloop which every other gui does - strange
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# so need to use the widget "after" command to force
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# event loop to run non-gui events every interval
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self.stext.after(self.interval,self.processPipe)
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return
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def main(argv=None):
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root = Tkinter.Tk()
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root.title('Kindle for Mac eBook Encryption Removal')
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root.resizable(True, False)
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root.minsize(300, 0)
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MainDialog(root).pack(fill=Tkconstants.X, expand=1)
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root.mainloop()
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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