def decryptpdf(infile, outdir, rscpath):
errlog = ''
rv = 1
# determine a good name for the output file
name, ext = os.path.splitext(os.path.basename(infile))
outfile = os.path.join(outdir, name + '_nodrm.pdf')
# try with any keyfiles (*.der) in the rscpath
files = os.listdir(rscpath)
filefilter = re.compile("\.der$", re.IGNORECASE)
files = filter(filefilter.search, files)
if files:
for filename in files:
keypath = os.path.join(rscpath, filename)
userkey = open(keypath, 'rb').read()
try:
rv = ineptpdf.decryptBook(userkey, infile, outfile)
if rv == 0:
break
except Exception as e:
errlog += traceback.format_exc()
errlog += str(e)
rv = 1
if rv != 0:
print(errlog)
return rv
def PDFDecrypt(self, path_to_ebook):
import calibre_plugins.dedrm.prefs as prefs
import calibre_plugins.dedrm.ineptpdf
dedrmprefs = prefs.DeDRM_Prefs()
# Attempt to decrypt epub with each encryption key (generated or provided).
print("{0} v{1}: {2} is a PDF ebook".format(
PLUGIN_NAME, PLUGIN_VERSION, os.path.basename(path_to_ebook)))
for keyname, userkeyhex in dedrmprefs['adeptkeys'].items():
userkey = codecs.decode(userkeyhex, 'hex')
print("{0} v{1}: Trying Encryption key {2:s}".format(
PLUGIN_NAME, PLUGIN_VERSION, keyname))
of = self.temporary_file(".pdf")
# Give the user key, ebook and TemporaryPersistent file to the decryption function.
try:
result = ineptpdf.decryptBook(userkey, path_to_ebook, of.name)
except:
print(
"{0} v{1}: Exception when decrypting after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
traceback.print_exc()
result = 1
of.close()
if result == 0:
# Decryption was successful.
# Return the modified PersistentTemporary file to calibre.
return of.name
print(
"{0} v{1}: Failed to decrypt with key {2:s} after {3:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION, keyname,
time.time() - self.starttime))
# perhaps we need to get a new default ADE key
print(
"{0} v{1}: Looking for new default Adobe Digital Editions Keys after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
# get the default Adobe keys
defaultkeys = []
try:
if iswindows or isosx:
from calibre_plugins.dedrm.adobekey import adeptkeys
defaultkeys = adeptkeys()
else: # linux
from .wineutils import WineGetKeys
scriptpath = os.path.join(self.alfdir, "adobekey.py")
defaultkeys = WineGetKeys(scriptpath, ".der",
dedrmprefs['adobewineprefix'])
self.default_key = defaultkeys[0]
except:
print(
"{0} v{1}: Exception when getting default Adobe Key after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
traceback.print_exc()
self.default_key = ""
newkeys = []
for keyvalue in defaultkeys:
if codecs.encode(keyvalue,
'hex') not in dedrmprefs['adeptkeys'].values():
newkeys.append(keyvalue)
if len(newkeys) > 0:
try:
for i, userkey in enumerate(newkeys):
print("{0} v{1}: Trying a new default key".format(
PLUGIN_NAME, PLUGIN_VERSION))
of = self.temporary_file(".pdf")
# Give the user key, ebook and TemporaryPersistent file to the decryption function.
try:
result = ineptpdf.decryptBook(userkey, path_to_ebook,
of.name)
except:
print(
"{0} v{1}: Exception when decrypting after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
traceback.print_exc()
result = 1
of.close()
if result == 0:
# Decryption was a success
# Store the new successful key in the defaults
print("{0} v{1}: Saving a new default key".format(
PLUGIN_NAME, PLUGIN_VERSION))
try:
dedrmprefs.addnamedvaluetoprefs(
'adeptkeys', 'default_key',
codecs.encode(keyvalue, 'hex'))
dedrmprefs.writeprefs()
print(
"{0} v{1}: Saved a new default key after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
except:
print(
"{0} v{1}: Exception when saving a new default key after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
traceback.print_exc()
# Return the modified PersistentTemporary file to calibre.
return of.name
print(
"{0} v{1}: Failed to decrypt with new default key after {2:.1f} seconds"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
except Exception as e:
pass
# Something went wrong with decryption.
print(
"{0} v{1}: Ultimately failed to decrypt after {2:.1f} seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
raise DeDRMError(
"{0} v{1}: Ultimately failed to decrypt after {2:.1f} seconds. Read the FAQs at Harper's repository: https://github.com/apprenticeharper/DeDRM_tools/blob/master/FAQs.md"
.format(PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime))
def PDFDecrypt(self, path_to_ebook):
import calibre_plugins.dedrm.prefs as prefs
import calibre_plugins.dedrm.ineptpdf
dedrmprefs = prefs.DeDRM_Prefs()
# Attempt to decrypt epub with each encryption key (generated or provided).
print u"{0} v{1}: {2} is a PDF ebook".format(
PLUGIN_NAME, PLUGIN_VERSION, os.path.basename(path_to_ebook))
for keyname, userkeyhex in dedrmprefs['adeptkeys'].items():
userkey = userkeyhex.decode('hex')
print u"{0} v{1}: Trying Encryption key {2:s}".format(
PLUGIN_NAME, PLUGIN_VERSION, keyname)
of = self.temporary_file(u".pdf")
# Give the user key, ebook and TemporaryPersistent file to the decryption function.
try:
result = ineptpdf.decryptBook(userkey, path_to_ebook, of.name)
except:
result = 1
of.close()
if result == 0:
# Decryption was successful.
# Return the modified PersistentTemporary file to calibre.
return of.name
# perhaps we need to get a new default ADE key
print u"{0} v{1}: Looking for new default Adobe Digital Editions Keys after {2:.1f} seconds".format(
PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime)
# get the default Adobe keys
defaultkeys = []
if iswindows or isosx:
import calibre_plugins.dedrm.adobekey as adobe
try:
defaultkeys = adobe.adeptkeys()
except:
pass
else:
# linux
try:
from wineutils import WineGetKeys
scriptpath = os.join(self.alfdir, u"adobekey.py")
defaultkeys = self.WineGetKeys(
scriptpath, u".der", dedrmprefs['adobewineprefix'])
except:
pass
newkeys = []
for keyvalue in defaultkeys:
if keyvalue.encode(
'hex') not in dedrmprefs['adeptkeys'].values():
newkeys.append(keyvalue)
if len(newkeys) > 0:
try:
for i, userkey in enumerate(newkeys):
print u"{0} v{1}: Trying a new default key".format(
PLUGIN_NAME, PLUGIN_VERSION)
of = self.temporary_file(u".pdf")
# Give the user key, ebook and TemporaryPersistent file to the decryption function.
try:
result = ineptepdf.decryptBook(
userkey, inf.name, of.name)
except:
result = 1
of.close()
if result == 0:
# Decryption was a success
# Store the new successful key in the defaults
print u"{0} v{1}: Saving a new default key".format(
PLUGIN_NAME, PLUGIN_VERSION)
try:
dedrmprefs.addnamedvaluetoprefs(
'adeptkeys', 'default_key',
keyvalue.encode('hex'))
dedrmprefs.writeprefs()
except:
traceback.print_exc()
# Return the modified PersistentTemporary file to calibre.
return of.name
print u"{0} v{1}: Failed to decrypt with new default key after {2:.1f} seconds".format(
PLUGIN_NAME, PLUGIN_VERSION,
time.time() - self.starttime)
except Exception, e:
pass
def PDFDecrypt(self, path_to_ebook):
import calibre_plugins.dedrm.prefs as prefs
import calibre_plugins.dedrm.ineptpdf
dedrmprefs = prefs.DeDRM_Prefs()
# Attempt to decrypt epub with each encryption key (generated or provided).
print u"{0} v{1}: {2} is a PDF ebook".format(PLUGIN_NAME, PLUGIN_VERSION, os.path.basename(path_to_ebook))
for keyname, userkeyhex in dedrmprefs["adeptkeys"].items():
userkey = userkeyhex.decode("hex")
print u"{0} v{1}: Trying Encryption key {2:s}".format(PLUGIN_NAME, PLUGIN_VERSION, keyname)
of = self.temporary_file(u".pdf")
# Give the user key, ebook and TemporaryPersistent file to the decryption function.
try:
result = ineptpdf.decryptBook(userkey, path_to_ebook, of.name)
except:
result = 1
of.close()
if result == 0:
# Decryption was successful.
# Return the modified PersistentTemporary file to calibre.
return of.name
# perhaps we need to get a new default ADE key
print u"{0} v{1}: Looking for new default Adobe Digital Editions Keys after {2:.1f} seconds".format(
PLUGIN_NAME, PLUGIN_VERSION, time.time() - self.starttime
)
# get the default Adobe keys
defaultkeys = []
if iswindows or isosx:
import calibre_plugins.dedrm.adobekey as adobe
try:
defaultkeys = adobe.adeptkeys()
except:
pass
else:
# linux
try:
from wineutils import WineGetKeys
scriptpath = os.path.join(self.alfdir, u"adobekey.py")
defaultkeys = WineGetKeys(scriptpath, u".der", dedrmprefs["adobewineprefix"])
except:
pass
newkeys = []
for keyvalue in defaultkeys:
if keyvalue.encode("hex") not in dedrmprefs["adeptkeys"].values():
newkeys.append(keyvalue)
if len(newkeys) > 0:
try:
for i, userkey in enumerate(newkeys):
print u"{0} v{1}: Trying a new default key".format(PLUGIN_NAME, PLUGIN_VERSION)
of = self.temporary_file(u".pdf")
# Give the user key, ebook and TemporaryPersistent file to the decryption function.
try:
result = ineptepdf.decryptBook(userkey, inf.name, of.name)
except:
result = 1
of.close()
if result == 0:
# Decryption was a success
# Store the new successful key in the defaults
print u"{0} v{1}: Saving a new default key".format(PLUGIN_NAME, PLUGIN_VERSION)
try:
dedrmprefs.addnamedvaluetoprefs("adeptkeys", "default_key", keyvalue.encode("hex"))
dedrmprefs.writeprefs()
except:
traceback.print_exc()
# Return the modified PersistentTemporary file to calibre.
return of.name
print u"{0} v{1}: Failed to decrypt with new default key after {2:.1f} seconds".format(
PLUGIN_NAME, PLUGIN_VERSION, time.time() - self.starttime
)
except Exception, e:
pass
