Add login upgrade script (only run this once!!)

DreamTown/upgrade_login.py

@@ -0,0 +1,43 @@
+# A script to update login hash to new format (more secure)
+
+import sqlite3
+import binascii
+import hashlib
+
+SQLLITE_DB_PATH = "DreamTown.db"
+
+db = sqlite3.connect(SQLLITE_DB_PATH)	
+c = db.cursor()
+cur = c.execute("SELECT PassHash FROM users")
+rows = cur.fetchall()
+
+for row in rows:
+	ogPassHash = row[0]
+	
+	passHashBin = binascii.unhexlify(ogPassHash)
+	
+	m = hashlib.sha512()
+	m.update(passHashBin)
+	PassHash = binascii.hexlify(m.digest()).decode("utf-8")
+	
+	print("P: "+str(ogPassHash) + " : " + str(PassHash))
+	c.execute('UPDATE users SET PassHash=? WHERE PassHash=?',(PassHash,ogPassHash))
+
+cur = c.execute("SELECT AnswerHash FROM securityQuestion")
+rows = cur.fetchall()
+
+for row in rows:
+	ogAnswerHash = row[0]
+	
+	answerHashBin = binascii.unhexlify(ogAnswerHash)
+	
+	m = hashlib.sha512()
+	m.update(answerHashBin)
+	AnswerHash = binascii.hexlify(m.digest()).decode("utf-8")
+	
+	print("A: "+str(ogAnswerHash) + " : " + str(AnswerHash))
+	c.execute('UPDATE securityQuestion SET AnswerHash=? WHERE AnswerHash=?',(AnswerHash,ogAnswerHash))
+
+
+db.commit()
+db.close()