import sys,string,hashlib,random

#buat generate random string dgn output salt|hash
def salt_hashh(x):
    s=string.ascii_letters+string.digits+string.punctuation  #string yg maw di generate
    salt="".join([random.choice(s) for i in xrange(random.randint(10,20))])#utk melakukan generate pada string di atas yg menghasilkan random salt
    h=hashlib.sha512(salt+x).hexdigest() # utk pemprosesan hashing yg di gabungkan dgn salt
    return salt+"|"+h

#utk pengecekan password yg udah di salt
def salt_check(a,b):
    salth=[]
    ha=''
    for i in range(len([salth.append(x[1].split("|")) for x in b])):
        ha=hashlib.sha512(salth[i][0]+a).hexdigest()
        if ha in salth[i][1]:
            ha=salth[i][0]+"|"+ha
            print ha
            break
    return ha



print'''
             TESTING CODE

    please choose what u want to do

    1)create new account
    2)login
    3)user list
    4)exit

'''
userlist=[] # tempat menampung user list(database user)
while True: # perulangan buat pemilihan
 choose=raw_input("you choose : ").strip()#utk penginputan pemilihan bila...strip() utk menghilangkan spasi di akhir kalimat(kata)
 if choose=="1":
  print "Create New Account"
  name=raw_input('Username:').rstrip()
  pswd=raw_input('Password:').rstrip()
  userlist.append((name,salt_hashh(pswd)))# fungsinya utk memasukkan user dan passwrd baru ke dalam userlist
  print "succes to create account"

 elif choose=="2":
  print "Login"
  ln=raw_input("Username:").rstrip()
  lp=raw_input("Password:").rstrip()
  if (ln,salt_check(lp,userlist)) in userlist: #utk pengecekan username dan passwrd ....bila sama login sukses
         print "log in sucess"

  else: # jika berbeda maka perintah di bwhnya yg akan dieksekusi
         print "error we don't know u"

 elif choose=="3":
  for i in userlist: # utk membaca yg  user list
     print i
 elif choose=="4":
     print "BYEEEE"
     sys.exit(0)
 else:
    print "we don't have that command"