Added endpoints for getting all matches (per-player), calculating new elo. improved authentication flow for mobile app

This commit is contained in:
Mercurio 2024-12-19 23:26:42 +01:00
parent 4a4cc244e0
commit da53dbe060
2 changed files with 195 additions and 7 deletions

166
calls.py
View file

@ -1,5 +1,8 @@
import bcrypt
from db import get_db_connection
import base64
import secrets
import time
def register_user(email, display_name, password):
hashed_password = bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode()
@ -27,8 +30,35 @@ def authenticate_user(email, password):
cursor.execute("SELECT uid, password_hash FROM users WHERE email = %s;", (email,))
user = cursor.fetchone()
if user and bcrypt.checkpw(password.encode(), user["password_hash"].encode()):
return user["uid"]
epoch_timestamp = int(time.time())
random_int = secrets.randbelow(1000000)
token_data = f"{email}:{password}:{epoch_timestamp}:{random_int}"
encoded_token = base64.b64encode(token_data.encode()).decode()
hashed_token = bcrypt.hashpw(encoded_token.encode(), bcrypt.gensalt())
cursor.execute("UPDATE users SET session_token = %s WHERE email = %s;", (hashed_token, email))
conn.commit()
return hashed_token.decode()
return None
finally:
cursor.close()
conn.close()
def reauth_user(token):
conn = get_db_connection()
cursor = conn.cursor()
try:
cursor.execute("SELECT email, display_name, current_elo, session_token FROM users WHERE session_token IS = %s;", (token,))
user = cursor.fetchone()
if user:
user_data = {
"email": user["email"],
"display_name": user["display_name"],
"elo": user["current_elo"]
}
return json.dumps(user_data)
return None
finally:
cursor.close()
conn.close()
@ -88,3 +118,137 @@ def accept_match_invite(match_id, player2_uid):
finally:
cursor.close()
conn.close()
def get_all_matches():
conn = get_db_connection()
cursor = conn.cursor()
try:
query = """
SELECT
m.match_id,
u1.display_name AS player1_name,
u2.display_name AS player2_name,
m.player1_score,
m.player2_score,
CASE
WHEN m.player1_score IS NULL AND m.player2_score IS NULL THEN 'upcoming'
WHEN m.player1_score IS NOT NULL AND m.player2_score IS NOT NULL THEN 'completed'
ELSE 'ongoing'
END AS status,
m.match_date
FROM matches m
LEFT JOIN users u1 ON m.player1_uid = u1.uid
LEFT JOIN users u2 ON m.player2_uid = u2.uid
ORDER BY
CASE
WHEN m.player1_score IS NULL AND m.player2_score IS NULL THEN 2 -- Upcoming
WHEN m.player1_score IS NOT NULL AND m.player2_score IS NOT NULL THEN 3 -- Completed
ELSE 1 -- Ongoing
END,
m.match_date;
"""
cursor.execute(query)
matches = cursor.fetchall()
return matches
finally:
cursor.close()
conn.close()
def get_elo(auth_header):
if not auth_header.startswith('Basic '):
raise ValueError("Invalid Authorization header")
encoded_credentials = auth_header.split(' ', 1)[1]
decoded_credentials = base64.b64decode(encoded_credentials).decode()
try:
email, password = decoded_credentials.split(':', 1)
except ValueError:
raise ValueError("Invalid credentials format")
conn = get_db_connection()
cursor = conn.cursor()
try:
cursor.execute("SELECT email, display_name, password_hash, elo FROM users WHERE email = %s;", (email,))
user = cursor.fetchone()
if not user:
raise ValueError("User not found")
if not bcrypt.checkpw(password.encode(), user["password_hash"].encode()):
raise ValueError("Invalid password")
return {
"email": user["email"],
"elo": user["elo"],
"display_name": user["display_name"]
}
except Exception as e:
raise e
finally:
cursor.close()
conn.close()
def update_elo(player1_display_name, player2_display_name, player1_score, player2_score, winner):
conn = get_db_connection()
cursor = conn.cursor()
K = 32
try:
cursor.execute("""
SELECT display_name, current_elo
FROM users
WHERE display_name IN (%s, %s);
""", (player1_display_name, player2_display_name))
players = cursor.fetchall()
if len(players) != 2:
return {"error": "Both players must exist in the database."}
player1_elo = players[0]["current_elo"]
player2_elo = players[1]["current_elo"]
expected_player1 = 1 / (1 + 10 ** ((player2_elo - player1_elo) / 400))
expected_player2 = 1 / (1 + 10 ** ((player1_elo - player2_elo) / 400))
if winner == player1_display_name:
actual_player1 = 1
actual_player2 = 0
elif winner == player2_display_name:
actual_player1 = 0
actual_player2 = 1
else:
actual_player1 = 0.5
actual_player2 = 0.5
new_player1_elo = player1_elo + K * (actual_player1 - expected_player1)
new_player2_elo = player2_elo + K * (actual_player2 - expected_player2)
cursor.execute("""
UPDATE users
SET current_elo = %s
WHERE display_name = %s;
""", (new_player1_elo, player1_display_name))
cursor.execute("""
UPDATE users
SET current_elo = %s
WHERE display_name = %s;
""", (new_player2_elo, player2_display_name))
conn.commit()
return {
"player1_display_name": player1_display_name,
"new_player1_elo": new_player1_elo,
"player2_display_name": player2_display_name,
"new_player2_elo": new_player2_elo
}
finally:
cursor.close()
conn.close()

36
main.py
View file

@ -1,9 +1,16 @@
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from calls import register_user, authenticate_user, add_friend, send_match_invite, accept_match_invite
from fastapi.middleware.cors import CORSMiddleware
from calls import register_user, authenticate_user, reauth_user, add_friend, send_match_invite, accept_match_invite, get_all_matches, get_elo, update_elo
app = FastAPI()
app.add_middleware(
CORSMiddleware,
allow_origins=["*"], # Replace "*" with your allowed origins
allow_credentials=True,
allow_methods=["*"], # Allow all HTTP methods
allow_headers=["*"], # Allow all HTTP headers
)
class RegisterRequest(BaseModel):
email: str
display_name: str
@ -35,9 +42,9 @@ def register(request: RegisterRequest):
@app.post("/login")
def login(request: LoginRequest):
uid = authenticate_user(request.email, request.password)
if uid:
return {"message": "Login successful", "uid": uid}
sessiontoken = authenticate_user(request.email, request.password)
if sessiontoken:
return {"message": "Login successful", "uid": sessiontoken}
else:
raise HTTPException(status_code=401, detail="Invalid credentials")
@ -63,4 +70,21 @@ def accept_invite(request: AcceptInviteRequest):
success = accept_match_invite(request.match_id, request.player2_uid)
return {"message": "Match invite accepted"} if success else HTTPException(400, "Failed to accept invite")
except Exception as e:
raise HTTPException(status_code=400, detail=str(e))
raise HTTPException(status_code=400, detail=str(e))
@app.get("/matches")
def get_matches():
try:
matches = get_all_matches()
return {"matches": matches}
except Exception as e:
raise HTTPException(status_code=400, detail=str(e))
@app.post("/elo")
def get_elo_endpoint(authorization: str):
print(f"Received Authorization header: {authorization}")
try:
result = get_elo(authorization)
return result
except Exception as e:
raise HTTPException(status_code=400, detail=str(e))