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Matthew HolmesMatthew Holmes
Matthew Holmes
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Matthew Holmes
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adding lab_5
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‎Code/matthew/html_css_flask/labs/lab_5/app.py‎

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from crypt import methods
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from email import message
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from flask import Flask, render_template, request
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app = Flask(__name__)
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def rot_cipher_encrypt(message: str, shift: int):
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encrypt_dict = {
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'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5, 'f': 6,
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'g': 7, 'h': 8, 'i': 9, 'j': 10, 'k': 11, 'l': 12,
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'm': 13, 'n': 14, 'o': 15, 'p': 16, 'q': 17, 'r': 18,
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's': 19, 't': 20, 'u': 21, 'v': 22, 'w': 23, 'x': 24,
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'y': 25, 'z': 26,
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}
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decrypt_dict = {
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0: 'z', 1: 'a', 2: 'b', 3: 'c', 4: 'd', 5: 'e', 6: 'f',
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7: 'g', 8: 'h', 9: 'i', 10: 'j', 11: 'k', 12: 'l', 13: 'm',
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14: 'n', 15: 'o', 16: 'p', 17: 'q', 18: 'r', 19: 's', 20: 't',
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21: 'u', 22: 'v', 23: 'w', 24: 'x', 25: 'y',
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}
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encrypted_text = ''
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for letter in message:
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if letter == ' ':
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encrypted_text += letter
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else:
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num = encrypt_dict[letter]
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num = ((num + shift) % 26)
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encrypted_text += decrypt_dict[num]
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return encrypted_text
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def rot_cipher_decrypt(message: str, shift: int):
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encrypt_dict = {
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'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5, 'f': 6,
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'g': 7, 'h': 8, 'i': 9, 'j': 10, 'k': 11, 'l': 12,
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'm': 13, 'n': 14, 'o': 15, 'p': 16, 'q': 17, 'r': 18,
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's': 19, 't': 20, 'u': 21, 'v': 22, 'w': 23, 'x': 24,
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'y': 25, 'z': 26,
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}
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decrypt_dict = {
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0: 'z', 1: 'a', 2: 'b', 3: 'c', 4: 'd', 5: 'e', 6: 'f',
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7: 'g', 8: 'h', 9: 'i', 10: 'j', 11: 'k', 12: 'l', 13: 'm',
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14: 'n', 15: 'o', 16: 'p', 17: 'q', 18: 'r', 19: 's', 20: 't',
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21: 'u', 22: 'v', 23: 'w', 24: 'x', 25: 'y',
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}
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decrypt_text = ''
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for letter in message:
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if letter == ' ':
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decrypt_text += letter
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else:
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num = encrypt_dict[letter]
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num = ((num - shift) % 26)
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decrypt_text += decrypt_dict[num]
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return decrypt_text
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# message = ''
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# encrypted_message = ''
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# shift = 13
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@app.route('/')
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def index():
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return render_template('index.html')
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@app.route('/encrypt', methods=['POST'])
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def encrypt():
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shift = int(request.form['shift'])
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message = request.form['user_string'].lower()
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encrypted_message = rot_cipher_encrypt(message, shift)
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# print(message)
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return render_template('encrypted.html', encrypted_message=encrypted_message, shift=shift)
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@app.route('/decrypt', methods=['POST'])
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def decrypt():
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shift = int(request.form['shift'])
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message = request.form['decrypt_message'].lower()
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decrypt_string = rot_cipher_decrypt(message, shift)
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return render_template('decrypt.html', decrypt_string=decrypt_string, shift=shift)

‎Code/matthew/html_css_flask/labs/lab_5/static/style.css‎

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body {
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text-align: center;
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}
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header {
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display: flex;
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flex-direction: column;
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}
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a {
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padding: 2px;
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text-decoration: none;
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color: black;
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border: 1px solid black;
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background-color: rgba(37, 36, 36, 0.295);
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}

‎Code/matthew/html_css_flask/labs/lab_5/templates/decrypt.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<!-- stylesheet -->
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<link
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rel="stylesheet"
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href="{{ url_for('static', filename='style.css') }}"
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/>
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<title>Decrypt</title>
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</head>
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<body>
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<h3>Your decrypted text is {{decrypt_string}}</h3>
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<br />
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<a href="/">Click here to encrypt another text</a>
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</body>
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</html>

‎Code/matthew/html_css_flask/labs/lab_5/templates/encrypted.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<!-- stylesheet -->
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<link
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rel="stylesheet"
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href="{{ url_for('static', filename='style.css') }}"
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/>
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<title>Encrypted</title>
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</head>
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<body>
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<h3>{{encrypted_message}}</h3>
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<header>
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<form action="/decrypt" method="post">
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<div>
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<input
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type="text"
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name="decrypt_message"
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value="{{encrypted_message}}"
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placeholder="Enter the text you would like to decrypt"
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/>
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</div>
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<br />
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<div>
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<input
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type="text"
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name="shift"
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value="{{shift}}"
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placeholder="Enter the shift key"
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required
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/>
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</div>
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<br />
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<button type="submit">Submit</button>
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</form>
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</header>
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</body>
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</html>

‎Code/matthew/html_css_flask/labs/lab_5/templates/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8" />
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<meta http-equiv="X-UA-Compatible" content="IE=edge" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<!-- stylesheet -->
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<link
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rel="stylesheet"
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href="{{ url_for('static', filename='style.css') }}"
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/>
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<title>Rot13</title>
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</head>
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<body>
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<h1>Rot13 Encryption</h1>
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<br />
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<header>
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<form action="/encrypt" method="post">
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<div>
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<input
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type="text"
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name="user_string"
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placeholder="Enter the text you would like to Encrypt"
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/>
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</div>
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<br />
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<div>
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<input
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type="text"
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name="shift"
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value="{{shift}}"
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placeholder="Enter the shift key"
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required
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/>
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</div>
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<br />
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<button type="submit">Submit</button>
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</form>
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</header>
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</body>
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</html>

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