Generate Secret Key Python Flask
Generate Secret Key Python Flask 3,9/5 4802 reviews
Generate Secret Key Python Flask
generate_keys.py
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#!/usr/bin/env python
# encoding: utf-8
''
generate_keys.py
Generate CSRF and Session keys, output to secret_keys.py file
Usage:
generate_keys.py [-f]
Outputs secret_keys.py file in current folder
By default, an existing secret_keys file will not be replaced.
Use the '-f' flag to force the new keys to be written to the file
''
importstring
importos.path
fromoptparseimportOptionParser
fromrandomimportchoice
fromstringimportTemplate
# File settings
file_name='secret_keys.py'
file_path=os.path.join(
os.path.dirname(os.path.realpath(__file__)), file_name)
file_template=Template(''# CSRF- and Session keys
CSRF_SECRET_KEY = '$csrf_key'
SESSION_KEY = '$session_key'
'')
# Get options from command line
parser=OptionParser()
parser.add_option(
'-d',
'--dir',
dest='dir',
help='specify dir to output to')
parser.add_option(
'-f',
'--force',
dest='force',
help='force overwrite of existing secret_keys file',
action='store_true')
parser.add_option(
'-r',
'--randomness',
dest='randomness',
help='length (randomness) of generated key; default = 24',
default=24)
(options, args) =parser.parse_args()
defgenerate_randomkey(length):
''Generate random key, given a number of characters''
chars=string.letters+string.digits
return'.join([choice(chars) foriinrange(length)])
defwrite_file(contents):
ifoptions.dirisnotNone:
file_path=os.path.join(os.path.dirname(
os.path.realpath(__file__)),
options.dir,
file_name)
withopen(file_path, 'wb') asf:
f.write(contents)
defgenerate_keyfile(csrf_key, session_key):
''Generate random keys for CSRF- and session key''
output=file_template.safe_substitute(dict(
csrf_key=csrf_key, session_key=session_key
))
ifos.path.exists(file_path):
ifoptions.forceisNone:
print('Warning: secret_keys.py file exists. ')
print('Use 'generate_keys.py --force' to force overwrite.')
else:
write_file(output)
else:
write_file(output)
defmain():
r=options.randomness
csrf_key=generate_randomkey(r)
session_key=generate_randomkey(r)
generate_keyfile(csrf_key, session_key)
if__name__'__main__':
main()
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