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app.py
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app.py
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import re
import base64
import hashlib
from cryptography.fernet import Fernet
import streamlit as st
from zipfile import ZipFile
from io import BytesIO
def contains_japanese(text):
# This regex includes the Unicode ranges for Hiragana, Katakana, and CJK (which includes Kanji)
japanese_regex = re.compile(r'[\u3040-\u30FF\u4E00-\u9FFF]')
return bool(japanese_regex.search(text))
# Function to generate a key from a passphrase
def generate_key(passphrase: str) -> bytes:
return base64.urlsafe_b64encode(hashlib.sha256(passphrase.encode()).digest())
def encrypt_comment(comment: str, key: bytes) -> str:
fernet = Fernet(key)
encrypted_comment = fernet.encrypt(comment.encode())
return encrypted_comment.decode()
def encrypt_comments_in_file(file_content: str):
# with open(file_path, 'r') as file:
# lines = file.readlines()
lines = file_content.split('\n')
encrypted_lines = []
for line in lines:
match = re.search('|'.join(['//', '#region ', '#endregion ']), line, re.IGNORECASE)
match2 = re.search('\$".*"', line)
matches1 = re.finditer("'(.*?)'", line) # The ? makes the * non-greedy for single-quoted string matches
matches2 = re.finditer('"(.*?)"', line) # The ? makes the * non-greedy for double-quoted string matches
if match:
space_or_code, comment = line.split(match.group(0), 1)
if contains_japanese(comment):
encrypted_comment = encrypt_comment(comment, key)
encrypted_lines.append(f'{space_or_code}{match.group(0)}{encrypted_comment}')
else:
encrypted_lines.append(line)
elif match2:
matches = re.finditer('|'.join(['^.*?{', '}.*?{', '}.*?$']), match2.group(0)[1:])
for match in matches:
literal = match.group(0)[1:-1]
if contains_japanese(literal):
encrypted_literal = encrypt_comment(literal, key)
line = line.replace(literal, encrypted_literal)
encrypted_lines.append(line)
else:
literals = [match.group(1) for match in matches1]
for literal in literals:
if contains_japanese(literal):
encrypted_literal = encrypt_comment(literal, key)
line = line.replace(literal, encrypted_literal)
literals = [match.group(1) for match in matches2]
for literal in literals:
if contains_japanese(literal):
encrypted_literal = encrypt_comment(literal, key)
line = line.replace(literal, encrypted_literal)
encrypted_lines.append(line)
# with open(file_path, 'w') as file:
# file.writelines(encrypted_lines)
return '\n'.join(encrypted_lines)
# # Usage
# file_path = 'your_source_code.cs'
# passphrase = 'your_secure_passphrase'
# encrypt_comments_in_file(file_path)
def decrypt_comment(encrypted_comment: str, key: bytes) -> str:
fernet = Fernet(key)
decrypted_comment = fernet.decrypt(encrypted_comment.encode())
return decrypted_comment.decode()
def decrypt_comments_in_file(file_content: str):
# with open(file_path, 'r') as file:
# lines = file.readlines()
lines = file_content.split('\n')
decrypted_lines = []
for line in lines:
match = re.search('|'.join(['//', '#region ', '#endregion ']), line, re.IGNORECASE)
match2 = re.search('\$".*"', line)
matches1 = re.finditer("'(.*?)'", line) # The ? makes the * non-greedy for single-quoted string matches
matches2 = re.finditer('"(.*?)"', line) # The ? makes the * non-greedy for double-quoted string matches
if match:
space_or_code, comment = line.split(match.group(0), 1)
try:
decrypted_comment = decrypt_comment(comment, key)
decrypted_lines.append(f'{space_or_code}{match.group(0)}{decrypted_comment}')
except:
decrypted_lines.append(line)
elif match2:
matches = re.finditer('|'.join(['^.*?{', '}.*?{', '}.*?$']), match2.group(0)[1:])
for match in matches:
literal = match.group(0)[1:-1]
try:
decrypted_literal = decrypt_comment(literal, key)
line = line.replace(literal, decrypted_literal)
except:
pass
decrypted_lines.append(line)
else:
literals = [match.group(1) for match in matches1]
for literal in literals:
try:
decrypted_literal = decrypt_comment(literal, key)
line = line.replace(literal, decrypted_literal)
except:
pass
literals = [match.group(1) for match in matches2]
for literal in literals:
try:
decrypted_literal = decrypt_comment(literal, key)
line = line.replace(literal, decrypted_literal)
except:
pass
decrypted_lines.append(line)
# with open(file_path, 'w') as file:
# file.writelines(decrypted_lines)
return '\n'.join(decrypted_lines)
# # Usage
# file_path = 'your_source_code.cs'
# passphrase = 'your_secure_passphrase'
# decrypt_comments_in_file(file_path)
st.title('C#中日韓註解字串加密/解密工具')
passphrase = st.text_input("金鑰（自訂）")
key = generate_key(passphrase)
process = {'加密': encrypt_comments_in_file, '解密': decrypt_comments_in_file}
mode = st.selectbox('模式', process.keys())
uploaded_file = st.file_uploader("上傳", type=['cs', 'zip'])
if uploaded_file is not None and passphrase:
file_name, ext = uploaded_file.name.split('.')
if ext.lower() == 'cs':
file_name = f'{file_name}.cs'
mime_type = 'text/plain'
file_content = uploaded_file.read().decode()
download = processed_content = process[mode](file_content)
if ext.lower() == 'zip':
file_name = f'{file_name}_{mode}.zip'
mime_type = 'application/zip'
target_zip_buffer = BytesIO()
with ZipFile(target_zip_buffer, 'w') as target_zip:
with ZipFile(uploaded_file, 'r') as source_zip:
for name in source_zip.namelist():
with source_zip.open(name) as file:
try:
file_content = file.read().decode()
if name.endswith('.cs'):
processed_content = process[mode](file_content)
target_zip.writestr(name, processed_content)
else:
target_zip.writestr(name, file_content)
except:
pass
target_zip_buffer.seek(0)
download = target_zip_buffer
# processed_content = process_script(file_content, passphrase, salt, mode)
# st.text_area("Processed Script", value=processed_content, height=400)
st.download_button(
label="下載",
data=download,
file_name=file_name,
mime=mime_type
)