contributed Password breach checker

Author: deepaksaipendyala

passwordbreachchecker/passwordbreach-master/README.md

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+# password breach checker
+## Description:
+- This program checks whether your password leaked in any Data Breaches.
+- Your can even do it at (https://haveibeenpwned.com/Passwords) 
+- but Your password travels over internet right? so, its not safest method.
+- This works in most efficient way in your offline pc.
+- When You enter a password, it will be hashed with sha1 
+- first 5 letters of hash code will be sent to haveibeenpwned API and receives a Dict of password Data with those first 5 characters of hashed password then this program crosscheck with the received hash and
+- finds whether your password leaked, if so how many times . else, it shows good to go.
+## Instructions:
+1) Download passwordbreach.py
+2) Open Terminal/CMD/Powershell
+3) Go to Directory of passwordbreach.py (downloads folder in general)
+4) Execute the below cmd
+5) ###  ```python3 passwordbreach.py x y z``` ( x,y,z are your passwords. You can enter infinite)
+### Just ping me your doubts or to get collaborated on further projects!

passwordbreachchecker/passwordbreach-master/passwordbreach.py

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+import requests
+import hashlib
+import sys
+
+def request_api_data(qchar):
+  url = 'https://api.pwnedpasswords.com/range/' + qchar
+  res = requests.get(url)
+  if res.status_code != 200:
+    raise RuntimeError(f' Error fetching : {res.status_code},check the api and try again')
+  return res
+
+def get_password_leaks_count(hashes,h_to_check):
+  hashes= (line.split(':')for line in hashes.text.splitlines())
+  for h,count in hashes:
+    if h == h_to_check:
+      return count
+  return 0
+
+def hashing(password):
+  sha1password = hashlib.sha1(password.encode('utf=8')).hexdigest().upper()
+  f5char,l5char = sha1password[:5], sha1password[5:]
+  response= request_api_data(f5char)
+  return get_password_leaks_count(response,l5char)
+
+def main(args):
+  for password in args:
+    count=hashing(password)
+    if count:
+      print(f'{password} was found {count} times... its high on time to change the password {password} to better secured !')
+    else:
+       print(f'{password} was NOT found. It seems Good to Go!')
+  return 'done!'
+
+if __name__=='__main__':
+    sys.exit(main(sys.argv[1:]))
+
+