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Commit122ab8a

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Merge pull requestlarymak#334 from MBSA-INFINITY/url_shortening_app_flask
URL Shortening Application in Flask #hacktoberfest
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*.pyc
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/__pycache__
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.env
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client_secret.json
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do_not_commit
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<!--Please do not remove this part-->
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![Star Badge](https://img.shields.io/static/v1?label=%F0%9F%8C%9F&message=If%20Useful&style=style=flat&color=BC4E99)
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![Open Source Love](https://badges.frapsoft.com/os/v1/open-source.svg?v=103)
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#URL Shortening Application in Flask
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##🛠️ Description
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This project is about developing a url shortening application in**Flask** and**MongoDB**. User will paste their long URLs in this application and will get a shortened url, which will redirect to the same long url once used in a browser.
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##⚙️ Languages or Frameworks Used
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- Flask, MongoDB
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- HTML, CSS, Bootstrap
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##🌟 How to run
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-###Install all the requirements
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Run`pip install -r requirements.txt` to install all the requirements.
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-###MongoDB Setup for Project
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- Download monogdb from the[official website](https://www.mongodb.com/try/download/community) and setup in your local system for testing.
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- Once it is setup locally, try creating documents and collections in mongodb to familiarize yourself with it.
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- You can also download the`MongoDB Compass`, which is the GUI version of Mongo Shell.
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- Once all the local testing is done, you can create a free cloud version of MongoDB in[MongoDB Atlas](https://www.mongodb.com/cloud/atlas/register) and get the following credentials from the dashboard of atlas:
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```bash
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export MONGO_URI=YOUR_MONGO_URI
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export MONGO_USERNAME=YOUR_MONGO_USERNAME
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export MONGO_PASSWORD=YOUR_MONGO_PASSWORD
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```
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-###Setup Environment for the project
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- Now create a`.env` file in your project dreictory and include the following parameters as it is :-
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```bash
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export ENVIRONMENT=local| production (choose on the basis oflocal or production environment)
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export APP_SECRET=YOUR_APP_SECRET
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export APP_URL=YOUR_APP_URL (the short url)
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export MONGO_URI=YOUR_MONGO_URI
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export MONGO_USERNAME=YOUR_MONGO_USERNAME
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export MONGO_PASSWORD=YOUR_MONGO_PASSWORD
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export DB_NAME=YOUR_DATABASE_NAME
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```
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-###Now Just, Run the project
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- To the run the project, go to the`bash` terminal of VSCode or any other code editor and run`./start_server.sh`.
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- You don't have to care about setting`.env` then yourself then.
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##📺 Demo
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- Main screen of the application.
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![image](https://github.com/MBSA-INFINITY/Python-project-Scripts/assets/85332648/94825306-1803-4e48-95d1-4f65bd94fcc1)
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- Paste you long URL in the input.
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![image](https://github.com/MBSA-INFINITY/Python-project-Scripts/assets/85332648/a5dd5bf5-b311-4d72-b84f-ebf197e30009)
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- Click on Shorten and copy the`short url` to clipboard
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![image](https://github.com/MBSA-INFINITY/Python-project-Scripts/assets/85332648/4eeb3d39-ddfe-48b0-9c2c-23ffe01036cd)
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##🤖 Author
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Github -[MBSA-INFINITY](https://github.com/MBSA-INFINITY)
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LinkedIn -[MBSAIADITYA](https://www.linkedin.com/in/mbsaiaditya/)
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Portfolio -[MBSA](https://mbsaiaditya.in/)
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fromflaskimportFlask,request,render_template,redirect,flash
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fromhelpersimportrandom_string_generator,random_string_generator_only_alpha,is_valid_url
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fromdbimporturl_data_collection
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importos
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fromdatetimeimportdatetime
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app=Flask(__name__)
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app.secret_key=os.environ['APP_SECRET']
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url_=os.environ['APP_URL']
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reserved_keywords= ['login','logout','shorten-url']
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@app.route("/",methods= ['GET'])
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defstart():
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returnrender_template("index.html")
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@app.route("/shorten-url",methods=['POST'])
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defshorten_url():
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data=request.form
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url_input=data.get("url_input")
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data_id=random_string_generator_only_alpha(10)
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ifnotis_valid_url(str(url_input)):
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flash({'type':'error','data':"Inavlid URL"})
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returnredirect("/")
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random_slug=random_string_generator(7)
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shortened_url=f"{url_}/{random_slug}"
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shortened_url_=shortened_url[len(url_)+1:]
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ifshortened_url==url_input:
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flash({'type':'error','data':"Infinite Redirect Error!"})
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returnredirect("/")
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first_keyword=shortened_url_.split("/")[0]
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iffirst_keywordinreserved_keywords:
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flash({'type':'error','data':f"{first_keyword} is a reserved keyword! Please use any other word!"})
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returnredirect("/")
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incoming_data= {
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"no_of_/":shortened_url_.count("/"),
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"order":shortened_url_.split("/"),
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"redirect_url":url_input,
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"shortened_url":shortened_url,
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"data_id":data_id,
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"created_at":datetime.now()
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}
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ifurl_details:=url_data_collection.find_one({"no_of_/":incoming_data['no_of_/'],"order":incoming_data['order']}):
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flash({'type':'error','data':"This Domain is Already Taken!"})
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returnredirect("/")
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url_data_collection.insert_one(incoming_data)
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flash({'type':'data','data':shortened_url})
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returnredirect("/")
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@app.before_request
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defbefore_request_func():
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host_url=request.host_url
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url=request.url
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url=url[len(host_url):]
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incoming_data= {
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"no_of_/":url.count("/"),
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"order":url.split("/")
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}
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ifurl_details:=url_data_collection.find_one({"no_of_/":incoming_data['no_of_/'],"order":incoming_data['order']}):
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redirect_url=url_details.get("redirect_url")
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returnredirect(redirect_url)
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importos
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importpymongo
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ENVIRONMENT=os.environ["ENVIRONMENT"]
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ifENVIRONMENT=="local":
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connection_string="mongodb://localhost:27017"
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DB_NAME="url_shortener"
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else:
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MONGO_CLUSTER=os.environ["MONGO_URI"]
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MONGO_USERNAME=os.environ["MONGO_USERNAME"]
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MONGO_PASSWORD=os.environ["MONGO_PASSWORD"]
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DB_NAME=os.environ["DB_NAME"]
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connection_string=f"mongodb+srv://{MONGO_USERNAME}:{MONGO_PASSWORD}@{MONGO_CLUSTER}/?retryWrites=true&ssl=true&ssl_cert_reqs=CERT_NONE&w=majority"
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db_client=pymongo.MongoClient(connection_string)
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db_client=db_client.get_database(DB_NAME)
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url_data_collection=db_client['url_data']
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importstring
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importrandom
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importre
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defrandom_string_generator(N):
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res=''.join(random.choices(string.ascii_lowercase+
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string.digits,k=N))
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returnstr(res)
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defrandom_string_generator_only_alpha(N):
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res=''.join(random.choices(string.ascii_lowercase+
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string.ascii_uppercase,k=N))
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returnstr(res)
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defis_valid_url(url):
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# Define a regular expression pattern to match URLs
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url_pattern=re.compile(
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r'^(https?|ftp)://'# Match the scheme (http, https, or ftp)
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r'(?:(?:[A-Z0-9](?:[A-Z0-9-]{0,61}[A-Z0-9])?\.)+[A-Z]{2,6}\.?|'# Match domain
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r'localhost|'# Match "localhost"
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r'\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})'# Match IP address
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r'(?::\d+)?'# Match optional port number
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r'(?:/?|[/?]\S+)$',re.IGNORECASE)
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returnbool(url_pattern.match(url))
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Flask==2.0.1
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pymongo[srv]==4.3.3
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fromappimportapp
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if__name__=='__main__':
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app.run(debug=True)
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source .env
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python run.py

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