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import argparse
import base64
URL_MAPPING = {}
def shorten_url(url):
# Convert the URL to base64
encoded_url = base64.b64encode(url.encode()).decode()
# Take the first 8 characters of the encoded URL as our shortened URL
short_url = encoded_url[:8]
# Map the shortened URL back to the original
URL_MAPPING[short_url] = url
return short_url
def retrieve_url(short_url):
return URL_MAPPING.get(short_url, "URL not found")
def main():
parser = argparse.ArgumentParser(description="URL Shortener")
parser.add_argument("-s", "--shorten", type=str, help="URL to be shortened")
parser.add_argument("-r", "--retrieve", type=str, help="Short URL to be retrieved")
args = parser.parse_args()
if args.shorten:
shortened_url = shorten_url(args.shorten)
print(shortened_url)
# Directly retrieve after shortening, using the newly shortened URL
print(retrieve_url(shortened_url))
elif args.retrieve:
print(retrieve_url(args.retrieve))
else:
print("No valid arguments provided.")
if __name__ == "__main__":
main()
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