Add ex10 (scripting languages)

ex10/client.py

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+import requests
+from bs4 import BeautifulSoup
+import sys
+import time
+
+MORSE_CODE_DICT = { 'A':'.-', 'B':'-...', 
+                    'C':'-.-.', 'D':'-..', 'E':'.', 
+                    'F':'..-.', 'G':'--.', 'H':'....', 
+                    'I':'..', 'J':'.---', 'K':'-.-', 
+                    'L':'.-..', 'M':'--', 'N':'-.', 
+                    'O':'---', 'P':'.--.', 'Q':'--.-', 
+                    'R':'.-.', 'S':'...', 'T':'-', 
+                    'U':'..-', 'V':'...-', 'W':'.--', 
+                    'X':'-..-', 'Y':'-.--', 'Z':'--..', 
+                    '1':'.----', '2':'..---', '3':'...--', 
+                    '4':'....-', '5':'.....', '6':'-....', 
+                    '7':'--...', '8':'---..', '9':'----.', 
+                    '0':'-----', ', ':'--..--', '.':'.-.-.-', 
+                    '?':'..--..', '/':'-..-.', '-':'-....-', 
+                    '(':'-.--.', ')':'-.--.-'} 
+
+def transform(unicode_message):
+    out = []
+    for i, x in enumerate(unicode_message):
+        if x == '–':
+            out.append('-')
+        elif x == '·':
+            out.append('.')
+        elif x == ' ' and unicode_message[i-1] == ' ':
+            out.append('/')
+        elif x == ' ':
+            out.append(' ')
+    return ''.join(out)
+
+def decrypt(message):
+    message += ' '
+    decipher = ''
+    citext = ''
+    for letter in message:
+        if letter == '/':
+            decipher += ' '
+            citext = ''
+        elif letter == ' ':
+            decipher += list(MORSE_CODE_DICT.keys())[list(MORSE_CODE_DICT.values()).index(citext)] 
+            citext = ''
+        else: 
+            citext += letter
+
+    return decipher 
+
+def get_unicode_message(content):
+    soup = BeautifulSoup(content, features='lxml')
+    return soup.body.code.text
+
+def get_decrypted_message(content):
+    # We extract the unicode message out of the HTML content of the page.
+    unicode_message = get_unicode_message(content)
+
+    # We transform the unicode message into readable morse code.
+    morsecode_message = transform(unicode_message)
+
+    # We decrypt the morse-code message.
+    decrypted_message = decrypt(morsecode_message)
+
+    return decrypted_message
+
+
+
+if __name__ == "__main__":
+
+    if len(sys.argv) < 2:
+        print("Please provide the URL of the game as a command-line argument.")
+        sys.exit()
+
+    url = sys.argv[1]
+
+    # We will use a Session object by the 'requests' library so that we have
+    # persistance across our requests.
+    session = requests.Session()
+
+    # First, we do a get-request to get the page of the game. In there, we 
+    # find the 1st Question.
+    req = session.get(url)
+
+    while True:
+        for i in range(12):
+
+            # We read and decrypt the message.
+            decrypted_message = get_decrypted_message(req.content)
+            print("Decrypted Message", i+1, "\n" + decrypted_message + "\n")
+
+            # We post the answer and "press" the submit button.
+            req = session.post(
+                url,
+                data = {'submit': 'Submit!', 'answer': decrypted_message}
+            )
+
+            # We search the text of the page to see if the submission was correct
+            # or not.
+            if 'class="right"' in req.text:
+                if i == 11:
+                    break                
+                req = session.post(url, data={'continue': 'continue'})
+            elif 'class="wrong"' in req.text:
+                print("Something's wrong!")
+                break
+
+            # Just so that we can see the answers get printed.
+            time.sleep(0.5)
+
+        # When we finish with the questions, we ask for another round.
+        print('Wanna play again? (type "yes" or "no")')
+        yes_or_no = input()
+
+        if yes_or_no == "yes":
+            print("Woohoo! Let's do this...")
+            req = session.post(
+                url,
+                data = {'reset': 'reset'}
+            )
+        elif yes_or_no == "no":
+            print("Ouch! That hurt...")
+            break
+        else:
+            print("You speak with riddles old man... I'm gone.")
+            break

ex10/requirements.txt

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+beautifulsoup4==4.9.3
+requests==2.22.0