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Website/__init__.py

@@ -3,7 +3,8 @@ from flask import Flask, render_template, render_template_string, request, make_
 from flask_socketio import SocketIO, join_room, leave_room 
 from flask_session import Session
 from markupsafe import escape
-from .db import get_db, change_db
+from Website.db import get_db
+import Website.db as db
 from datetime import datetime
 finished = None
 preis = 150 #Ein Getraenk
@@ -63,7 +64,7 @@ def create_app(test_config=None):
         c = db.cursor()
         c.execute("SELECT * FROM users")   
         users = c.fetchall()
-        return render_template("list.html", users=users, preis=preis/100)
+        return render_template("list.html", users=escape(users), preis=escape(preis/100))
 
     @app.route("/transactionlist")
     def transactionlist():
@@ -123,7 +124,7 @@ def create_app(test_config=None):
         if user != None :
             c.execute(f"SELECT * FROM tags WHERE userid={user[0]}")
             tags = c.fetchall()
-            return render_template("user.html",  user=user, tags=tags)
+            return render_template("user.html",  user=escape(user), tags=escape(tags))
             
         else:
             return render_template("error.html", error_code="043")
@@ -141,9 +142,9 @@ def create_app(test_config=None):
         user = c.fetchone()
         if user != None:
             user_name = user[1]
-            change_db("removeuser", user_id=user_id, before=user_name)
+            db.remove_user(user_id)
             socketio.emit("update", "update")
-            return render_template("removeuser.html", user_name=user_name)
+            return render_template("removeuser.html", user_name=escape(user_name))
         else:
             return render_template("error.html", error_code="043")
 
@@ -156,7 +157,7 @@ def create_app(test_config=None):
             return render_template("error.html", error_code="418")
         c.execute("SELECT * FROM users WHERE username=?", [username]) 
         if c.fetchall() == []:
-            change_db("adduser", after=username)
+            db.add_user(username)
             socketio.emit("update", "update")
             c.execute(f"SELECT * FROM users WHERE username=?", [username])
             user = c.fetchone()
@@ -178,7 +179,7 @@ def create_app(test_config=None):
         users = c.fetchall()
         if users != []:
             balance_old = users[0][2]
-            change_db("balance", change=change, user_id=user_id)
+            db.change_balance(user_id, change)
             socketio.emit("update", "update")
             return render_template("redirect.html")
         else:
@@ -193,7 +194,7 @@ def create_app(test_config=None):
         session_id = uuid.uuid4()
         session[id] = session_id
         user_queue.put([user_id, "add", session_id])
-        return render_template("addtag.html", user=user_id)
+        return render_template("addtag.html", user=escape(user_id))
     
     @socketio.on('addtag')
     def request_addtag(data):
@@ -234,16 +235,14 @@ def create_app(test_config=None):
             session_id = uuid.uuid4()
             session[id] = session_id
             user_queue.put([user_id, "remove", session_id])
-            return render_template("removetag.html", user=user_id)
+            return render_template("removetag.html", user=escape(user_id))
         else:
             db = get_db()
             c = db.cursor()
             c.execute(f"SELECT * FROM tags WHERE (tagid = ? AND userid = ?)", [tag_id, user_id])
             if c.fetchall != []:
-                c.execute(f"DELETE FROM tags WHERE (tagid = ? AND userid = ?)", [tag_id, user_id])
+                db.remove_tag(tag_id)
-                db.commit()
                 message = f"Removed {tag_id} from user {user_id}"
-                log(type="removetag", userid=user_id, before=tag_id)
                 return render_template("redirect.html")
             else:
                 return render_template("error.html", error_code="054")
@@ -289,7 +288,7 @@ def create_app(test_config=None):
                     change = int(request.args.get("change"))
                 except:
                     change = preis
-               	change_db("balance", user_id=userid, change=change)
+                db.change_balance(user_id, change)
                 socketio.emit("update", "update")
                 return make_response(json.dumps({"mode":"balance", "username":user[1], "balance":user_new[2]}))
             else:
@@ -337,7 +336,7 @@ def create_app(test_config=None):
                     finished = queue_item
                     return make_response(json.dumps({"mode":"error","error":"170"}))
                 else:
-                    change_db("addtag", after=tag_id, user_id=user_id)
+                    db.add_tag(user_id, tag_id)
                     message = f"Added {tag_id} to {username}"
                     finished = queue_item
                     return make_response(json.dumps({"mode":"message","username":"{}".format(username),"message":"A tag was added"}))
@@ -364,7 +363,7 @@ def create_app(test_config=None):
             if user_list != []:
                 balance_old = user_list[0][2]
                 if user_queue.qsize() == 0:
-                    change_db("balance", user_id=tag[1], change=preis)
+                    db.change_balance(tag[1], preis)
                     c.execute(f"SELECT * FROM users WHERE id={tag[1]}")
                     user = c.fetchone()
                     socketio.emit("update", "update")
@@ -382,7 +381,20 @@ def create_app(test_config=None):
         before = request.form["before"]
         after = request.form["after"]
         change = request.form["change"]
-        change_db(statement, user_id, before, after, change)
+        
+        if statement == "adduser":
+            db.add_user(after)
+        elif statement == "removeuser":
+            db.remove_user(user_id)
+        elif statement == "addtag":
+            db.add_tag(user_id, after)
+        elif statement == "removetag":
+            db.remove_tag(befor)
+        elif statement == "balance":
+            db.change_balance(user_id, change)
+        else:
+            return make_response(json.dumps({"mode":"error", "error":"418"})) #Error code
+
         socketio.emit("update", "update")
         return render_template("index.html")
 
@@ -391,4 +403,5 @@ def create_app(test_config=None):
     def documentation():
         return render_template("documentation.html")
 
+
     return {"app":app,"socketio":socketio}

Website/db.py

@@ -10,24 +10,47 @@ def log(statement, user_id, before, after, change):
     c.execute("INSERT INTO transaction_log (timestamp, type, user_id, before, after, change) VALUES (?, ?, ?, ?, ?, ?)", [datetime.now(), statement, user_id, before, after, change])
     db.commit()
 
-def change_db(statement, user_id=None, before=None, after=None, change=None):
+def add_user(after):
     db = get_db()
     c = db.cursor()
-    if statement == "adduser" and after != None:
+    c.execute("INSERT or IGNORE INTO users (username, balance) VALUES (?, 0)", [after])
-        c.execute("INSERT or IGNORE INTO users (username, balance) VALUES (?, 0)", [after])
+    user_id = c.lastrowid
-        user_id = c.lastrowid
+    log("add_user", user_id=user_id, after=after)
-    elif statement == "removeuser" and user_id != None and before != None:
+    db.commit()
-        c.execute("DELETE FROM tags WHERE userid=?", [user_id])
+
-        c.execute("DELETE FROM users WHERE id=?", [user_id])
+def remove_user(user_id):
-    elif statement == "addtag" and after != None and user_id != None:
+    db = get_db()
-        c.execute("INSERT OR IGNORE INTO tags (tagid, userid) VALUES ?, ?)", [after, user_id])
+    c = db.cursor()
-    elif statement == "removetag" and before != None and user_id != None:
+    c.execute("SELECT * FROM users WHERE id = ?", [user_id])
-        c.execute("DELETE FROM tags WHERE (tagid = ? AND userid = ?)", [before, user_id])
+    user_name = c.fetchone()[1]
-    elif statement == "balance" and change != None and user_id != None:
+    c.execute("SELECT * FROM tags WHERE userid = ?", [user_id])
-        c.execute("UPDATE users SET balance = balance + ? WHERE id=?", [change, user_id])
+    for tag in c.fetchall():
-    else:
+        remove_tag(tag[0])
-        raise Exception("wrong or missing argument for change_db")
+    c.execute("DELETE FROM users WHERE id = ?", [user_id])
-    log(statement, user_id, before, after, change)
+    log("remove_user", user_id=user_id, before=user_name)
+    db.commit()
+
+def add_tag(user_id, tag_id):
+    db = get_db()
+    c = db.cursor()
+    c.execute("INSERT OR IGNORE INTO tags (tagid, userid) VALUES ?, ?)", [tag_id, user_id])
+    db.commit()
+    log("addtag", after=tag_id, user_id=user_id)
+
+def remove_tag(tag_id):
+    db = get_db()
+    c = db.cursor()
+    c.execute("SELECT * FROM tags WHERE tagid = ?", [tag_id])
+    user_id = c.fetchone()[1]
+    c.execute("DELETE FROM tags WHERE tagid = ?", [tag_id])
+    log("removetag", before=tag_id, user_id=user_id)
+    db.commit()
+
+def change_balance(user_id, change):
+    db = get_db()
+    c = db.cursor()
+    c.execute("UPDATE users SET balance = balance + ? WHERE id=?", [change, user_id])
+    log("balance", user_id=user_id, change=change)
     db.commit()
 
 def get_db():

tests/test_website.py

@@ -23,14 +23,14 @@ def test_index(client):
 
 #/adduser
 def test_adduser(client):
-    response = client.get('/adduser/user')
+    response = client.post('/adduser/user', data={})
     assert "418" in  response.data.decode('utf-8')
 
 def test_adduser_new(app, client):
     with app.app_context():
         db = get_db()
         assert db is get_db()
-    response = client.get('/adduser/user?username=test')
+    response = client.post('/adduser/user', data={user_name:"test"})
     c = db.cursor()
     c.execute("SELECT * FROM users WHERE username = ?", ["test"])
     data = c.fetchone()
@@ -40,7 +40,7 @@ def test_adduser_new(app, client):
     assert data[2] == 0
 
 def test_adduser_allreadyexists(client):
-    response = client.get('/adduser/user?username=test')
+    response = client.post('/adduser/user', data={username:"test"})
     assert "Error: 757" in response.data.decode('utf-8')
 
 #/addtag
@@ -49,7 +49,7 @@ def test_addtag(client):
     assert response.data.decode('utf-8') == "Error: 095"
 
 def test_addtag_userid_nan(client):
-    response = client.get('/addtag?id=test')
+    response = client.post('/addtag', data={id:1})
     assert response.data.decode('utf-8') == "Error: 095"
 
 def test_add_tag_direktli(app):