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encrypt.py
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encrypt.py
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"""
Copyright (c) 2012, Jonas Pfannschmidt
Licensed under the MIT license http://www.opensource.org/licenses/mit-license.php
"""
import sublime, sublime_plugin
import base64
from encrypt_helper import AESHelper
PREFIX = "SublimeCrypt~01!"
PREFIX_LEN = len(PREFIX)
class BaseCryptFile(sublime_plugin.TextCommand):
def run(self, edit):
self._edit = edit
self.view.window().show_input_panel("Enter password:", "", self.on_entered_password, None, None)
def on_entered_password(self, password):
raise NotImplementedError
def is_encrypted(self):
prefix_region = sublime.Region(0, PREFIX_LEN)
text = self.view.substr(prefix_region)
return text == PREFIX
def get_all_text(self):
all_region = sublime.Region(0, self.view.size())
unicode_text = self.view.substr(all_region)
text = unicode_text.encode('utf8')
return text
def replace_all_text(self, text):
unicode_text = text.decode('utf8')
all_region = sublime.Region(0, self.view.size())
self.view.replace(self._edit, all_region, unicode_text)
class EncryptFile(BaseCryptFile):
def on_entered_password(self, password):
text = self.get_all_text()
# Encrypt
helper = AESHelper()
cipher = helper.encrypt_string(text, password)
# Convert to base64 to display the bytes in the editor.
# The prefix may be used to later decide whether the file was encrypted.
cipher = PREFIX + base64.b64encode(cipher)
self.replace_all_text(cipher)
sublime.status_message("Encrypted")
def is_visible(self):
return not self.is_encrypted()
class DecryptFile(BaseCryptFile):
def on_entered_password(self, password):
cipher = self.get_all_text()
# Prepare text
cipher = cipher[PREFIX_LEN:]
cipher = base64.b64decode(cipher)
# Decrypt
helper = AESHelper()
text = helper.decrypt_string(cipher, password)
if (text):
self.replace_all_text(text)
sublime.status_message("Decrypted")
else:
sublime.status_message("Wrong password")
def is_visible(self):
return self.is_encrypted()