mirror of
https://github.com/th30d4y/OpenLearnX.git
synced 2026-05-26 11:25:49 +00:00
update
This commit is contained in:
5t4l1n
+878
-36
@@ -1,49 +1,891 @@
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from flask import Blueprint, request, jsonify, current_app
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from datetime import datetime
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import jwt
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import os
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import uuid
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import time
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import secrets
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import string
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import logging
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import hashlib
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import random
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import threading
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from bson import ObjectId
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from pymongo import MongoClient
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bp = Blueprint('certificate', __name__)
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# Set up logging
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logger = logging.getLogger(__name__)
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def get_user_from_token(token):
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"""Extract user from JWT token"""
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"""Extract user from JWT token with enhanced error handling"""
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try:
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payload = jwt.decode(
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token,
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current_app.config['SECRET_KEY'],
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algorithms=['HS256']
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)
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return payload['user_id'], payload['wallet_address']
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except:
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secret_key = current_app.config.get('JWT_SECRET_KEY') or current_app.config.get('SECRET_KEY')
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if not secret_key:
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logger.error("No JWT secret key found in configuration")
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return None, None
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payload = jwt.decode(token, secret_key, algorithms=['HS256'])
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user_id = payload.get('user_id') or payload.get('sub')
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wallet_address = payload.get('wallet_address')
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logger.info(f"✅ Token decoded successfully for user: {user_id}")
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return user_id, wallet_address
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except Exception as e:
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logger.error(f"Error decoding JWT token: {str(e)}")
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return None, None
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@bp.route('/user/<user_id>', methods=['GET'])
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async def get_user_certificates(user_id):
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"""Get all certificates for a user"""
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token = request.headers.get('Authorization', '').replace('Bearer ', '')
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token_user_id, _ = get_user_from_token(token)
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if not token_user_id or token_user_id != user_id:
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return jsonify({"error": "Unauthorized"}), 403
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mongo_service = current_app.config['MONGO_SERVICE']
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certificates = await mongo_service.get_user_certificates(user_id)
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return jsonify({"certificates": certificates or []})
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def get_db_connection():
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"""Get MongoDB database connection with enhanced error handling"""
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try:
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# Try to get from Flask config first
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mongo_service = current_app.config.get('MONGO_SERVICE')
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if mongo_service and hasattr(mongo_service, 'db'):
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print("📊 Using Flask config database connection")
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return mongo_service.db
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# Fallback to direct connection with explicit URI
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mongodb_uri = current_app.config.get('MONGODB_URI', 'mongodb://localhost:27017/')
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print(f"📊 Connecting directly to MongoDB: {mongodb_uri}")
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client = MongoClient(mongodb_uri)
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db = client.openlearnx
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# Test the connection by running a simple command
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db.command('ping')
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print("✅ Database connection successful!")
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return db
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except Exception as e:
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print(f"❌ Database connection failed: {e}")
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logger.error(f"Database connection failed: {e}")
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return None
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@bp.route('/mint', methods=['POST'])
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async def mint_certificate():
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"""Mint NFT certificate for completed test"""
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token = request.headers.get('Authorization', '').replace('Bearer ', '')
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user_id, wallet_address = get_user_from_token(token)
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def generate_truly_unique_certificate_id():
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"""Generate GUARANTEED unique certificate ID"""
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if not user_id:
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return jsonify({"error": "Authentication required"}), 401
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# Method 1: Nanosecond timestamp for uniqueness
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nano_timestamp = str(time.time_ns())
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# Mock certificate minting for now
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return jsonify({
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"success": True,
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"certificate": {
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"token_id": 1,
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"transaction_hash": "0x123...",
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"message": "Certificate minting functionality ready"
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# Method 2: High entropy random
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random_component = ''.join(secrets.choice(string.ascii_uppercase + string.digits) for _ in range(8))
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# Method 3: UUID component
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uuid_component = str(uuid.uuid4()).replace('-', '').upper()[:4]
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# Method 4: System-specific component
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system_component = f"{os.getpid()}{threading.get_ident()}"[-4:]
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# Combine and ensure 12 characters
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combined = nano_timestamp[-3:] + random_component[:4] + uuid_component[:3] + system_component[-2:]
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certificate_id = combined[:12].upper()
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# Force different from problematic ID
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if certificate_id == "DG1ITFZ7DT5B":
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certificate_id = "UNIQUE" + str(int(time.time()))[-6:]
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certificate_id = certificate_id[:12].upper()
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print(f"🆔 Generated unique ID: {certificate_id}")
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return certificate_id
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def generate_unique_share_code():
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"""Generate unique 8-character share code"""
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timestamp = str(int(time.time() * 1000000))[-4:]
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random_part = ''.join(secrets.choice(string.ascii_lowercase + string.digits) for _ in range(4))
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share_code = timestamp + random_part
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print(f"🔗 Generated share code: {share_code}")
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return share_code
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@bp.route('/mint', methods=['POST', 'OPTIONS'])
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def mint_certificate():
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"""FIXED: Create certificate with guaranteed database saving"""
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if request.method == "OPTIONS":
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return jsonify({'status': 'ok'})
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try:
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print("\n" + "="*50)
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print("🎓 STARTING CERTIFICATE MINTING PROCESS")
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print("="*50)
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# Get request data
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data = request.json
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if not data:
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print("❌ No request data provided")
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return jsonify({"error": "Request data required"}), 400
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print(f"📥 Received data: {data}")
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# Validate required fields
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required_fields = ['user_name', 'course_id']
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for field in required_fields:
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if not data.get(field):
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print(f"❌ Missing required field: {field}")
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return jsonify({"error": f"Missing required field: {field}"}), 400
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# Get student's entered name
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student_entered_name = data.get('user_name', '').strip()
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if not student_entered_name:
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print("❌ Student name is empty")
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return jsonify({"error": "Student name is required"}), 400
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print(f"🎓 STUDENT NAME: '{student_entered_name}'")
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print(f"📚 COURSE ID: '{data['course_id']}'")
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# Get user ID (from token or default)
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auth_header = request.headers.get('Authorization', '')
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user_id = 'anonymous'
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wallet_address = None
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if auth_header.startswith('Bearer '):
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token = auth_header.replace('Bearer ', '')
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token_user_id, wallet_address = get_user_from_token(token)
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if token_user_id:
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user_id = token_user_id
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print(f"👤 USER ID: '{user_id}'")
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# ✅ CRITICAL: Get database connection and verify it works
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print("\n📊 ESTABLISHING DATABASE CONNECTION...")
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db = get_db_connection()
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if db is None:
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print("❌ CRITICAL: Database connection failed!")
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return jsonify({"error": "Database connection failed - check MongoDB server"}), 500
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print("✅ Database connection established successfully!")
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# Test database write capability
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try:
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test_doc = {"test": "connection", "timestamp": datetime.now()}
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test_result = db.test_collection.insert_one(test_doc)
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db.test_collection.delete_one({"_id": test_result.inserted_id})
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print("✅ Database write test successful!")
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except Exception as e:
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print(f"❌ Database write test failed: {e}")
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return jsonify({"error": "Database is not writable"}), 500
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# ✅ Check if certificate already exists
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print(f"\n🔍 Checking for existing certificate...")
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try:
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existing_certificate = db.certificates.find_one({
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"user_id": user_id,
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"course_id": data['course_id']
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})
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if existing_certificate:
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print(f"📜 Certificate already exists: {existing_certificate['certificate_id']}")
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return jsonify({
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"success": True,
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"certificate": {
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"certificate_id": existing_certificate['certificate_id'],
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"user_name": student_entered_name, # Always return entered name
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"course_title": existing_certificate.get('course_title', 'Course'),
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"mentor_name": existing_certificate.get('instructor_name', existing_certificate.get('mentor_name', 'OpenLearnX Instructor')),
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"completion_date": existing_certificate['completion_date'],
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"share_code": existing_certificate.get('share_code'),
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"public_url": existing_certificate.get('public_url'),
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"unique_url": f"/certificate/{existing_certificate.get('share_code')}",
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"message": "Certificate already exists!"
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}
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}), 200
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except Exception as e:
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print(f"⚠️ Error checking existing certificates: {e}")
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# Get course information
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print(f"\n📚 Getting course information...")
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try:
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course = db.courses.find_one({"id": data['course_id']})
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if not course:
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print(f"⚠️ Course not found, creating default")
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course = {
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"id": data['course_id'],
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"title": data.get('course_title', f"Course {data['course_id']}"),
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"mentor": "OpenLearnX Instructor"
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}
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else:
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print(f"✅ Course found: {course['title']}")
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except Exception as e:
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print(f"❌ Error finding course: {e}")
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course = {
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"id": data['course_id'],
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"title": data.get('course_title', f"Course {data['course_id']}"),
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"mentor": "OpenLearnX Instructor"
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}
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# ✅ GENERATE UNIQUE IDs
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print(f"\n🆔 Generating unique IDs...")
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certificate_id = generate_truly_unique_certificate_id()
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share_code = generate_unique_share_code()
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token_id = str(uuid.uuid4())
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print(f"🆔 Certificate ID: {certificate_id}")
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print(f"🔗 Share Code: {share_code}")
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print(f"🎫 Token ID: {token_id}")
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# Check for ID collisions in database
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print(f"\n🔍 Checking for ID collisions...")
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max_attempts = 10
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for attempt in range(max_attempts):
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existing_cert = db.certificates.find_one({"certificate_id": certificate_id})
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existing_share = db.certificates.find_one({"share_code": share_code})
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if not existing_cert and not existing_share:
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print(f"✅ IDs are unique (checked attempt {attempt + 1})")
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break
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else:
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print(f"⚠️ ID collision detected on attempt {attempt + 1}, regenerating...")
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certificate_id = generate_truly_unique_certificate_id()
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share_code = generate_unique_share_code()
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# Get instructor name (separate from student)
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instructor_name = course.get('mentor', 'OpenLearnX Instructor')
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if isinstance(instructor_name, dict):
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instructor_name = instructor_name.get('name', 'OpenLearnX Instructor')
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# Prevent student name from being used as instructor
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if instructor_name == student_entered_name:
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instructor_name = 'OpenLearnX Instructor'
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print(f"\n👥 Names configured:")
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print(f" 🎓 Student: '{student_entered_name}'")
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print(f" 👨🏫 Instructor: '{instructor_name}'")
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# Get wallet information
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wallet_id = wallet_address or data.get('wallet_id', f'test-wallet-{int(time.time())}')
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# ✅ CREATE COMPLETE CERTIFICATE DOCUMENT
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print(f"\n📄 Creating certificate document...")
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certificate_document = {
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# ✅ UNIQUE IDENTIFIERS
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"certificate_id": certificate_id,
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"token_id": token_id,
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"share_code": share_code,
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# ✅ STUDENT INFORMATION (EXPLICIT)
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"student_name": student_entered_name, # Explicit student field
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"user_name": student_entered_name, # Main name field
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# ✅ USER & COURSE INFO
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"user_id": user_id,
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"course_id": data['course_id'],
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"course_title": course['title'],
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# ✅ INSTRUCTOR INFORMATION (SEPARATE)
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"mentor_name": instructor_name, # Instructor name
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"instructor_name": instructor_name, # Explicit instructor field
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"course_mentor": instructor_name, # Backward compatibility
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# ✅ WALLET & BLOCKCHAIN
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"wallet_address": wallet_id,
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"encrypted_wallet_id": {
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"iv": "test_iv_" + secrets.token_hex(8),
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"encrypted": "test_encrypted_" + secrets.token_hex(8),
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"algorithm": "AES-256-CBC"
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},
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# ✅ TIMESTAMPS
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"completion_date": datetime.now().isoformat(),
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"created_at": datetime.now().isoformat(),
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"updated_at": datetime.now().isoformat(),
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"minted_at": datetime.now().isoformat(),
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# ✅ CERTIFICATE METADATA
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"status": "active",
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"issued_by": "OpenLearnX",
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"verification_url": f"/certificates/{certificate_id}",
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"share_url": f"/certificate/{share_code}",
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"public_url": f"http://localhost:3000/certificate/{share_code}",
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"blockchain_hash": f"0x{secrets.token_hex(32)}",
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# ✅ ANALYTICS
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"is_revoked": False,
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"view_count": 0,
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"shared_count": 0
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}
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})
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# ✅ LOG COMPLETE DOCUMENT BEFORE SAVING
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print(f"\n📋 CERTIFICATE DOCUMENT TO SAVE:")
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print(f" 🆔 Certificate ID: {certificate_document['certificate_id']}")
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print(f" 🎓 Student Name: '{certificate_document['student_name']}'")
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print(f" 🎓 User Name: '{certificate_document['user_name']}'")
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print(f" 👨🏫 Instructor: '{certificate_document['instructor_name']}'")
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print(f" 📚 Course: '{certificate_document['course_title']}'")
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print(f" 🔗 Share Code: {certificate_document['share_code']}")
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# ✅ CRITICAL: SAVE TO DATABASE WITH VERIFICATION
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print(f"\n💾 SAVING TO DATABASE...")
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try:
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# Create indexes to ensure uniqueness
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try:
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db.certificates.create_index([("certificate_id", 1)], unique=True, background=True)
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db.certificates.create_index([("share_code", 1)], unique=True, background=True)
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print("✅ Database indexes created")
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except Exception as e:
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print(f"⚠️ Index creation warning: {e}")
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# Insert the document
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insert_result = db.certificates.insert_one(certificate_document)
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print(f"✅ DOCUMENT INSERTED SUCCESSFULLY!")
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print(f" 📊 MongoDB ID: {insert_result.inserted_id}")
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print(f" 🆔 Certificate ID: {certificate_id}")
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# ✅ VERIFY THE DOCUMENT WAS ACTUALLY SAVED
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print(f"\n🔍 VERIFYING DOCUMENT WAS SAVED...")
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saved_document = db.certificates.find_one({"certificate_id": certificate_id})
|
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if saved_document:
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print(f"✅ VERIFICATION SUCCESSFUL!")
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print(f" 🆔 Saved Certificate ID: {saved_document['certificate_id']}")
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print(f" 🎓 Saved Student Name: '{saved_document['student_name']}'")
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print(f" 📊 MongoDB ID: {saved_document['_id']}")
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else:
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print(f"❌ VERIFICATION FAILED - Document not found!")
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return jsonify({"error": "Failed to verify certificate was saved"}), 500
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||||
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||||
except Exception as e:
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print(f"❌ DATABASE SAVE ERROR: {e}")
|
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logger.error(f"Database save error: {e}")
|
||||
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||||
# Try alternative save method
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if "E11000" in str(e):
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print("⚠️ Duplicate key error, generating new ID...")
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certificate_id = generate_truly_unique_certificate_id()
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certificate_document["certificate_id"] = certificate_id
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certificate_document["verification_url"] = f"/certificates/{certificate_id}"
|
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||||
try:
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insert_result = db.certificates.insert_one(certificate_document)
|
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print(f"✅ Saved with new ID: {certificate_id}")
|
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except Exception as retry_error:
|
||||
print(f"❌ Retry failed: {retry_error}")
|
||||
return jsonify({"error": "Failed to save certificate after retry"}), 500
|
||||
else:
|
||||
return jsonify({"error": f"Database save failed: {str(e)}"}), 500
|
||||
|
||||
# ✅ PREPARE RESPONSE
|
||||
print(f"\n📤 PREPARING RESPONSE...")
|
||||
certificate_response = {
|
||||
"certificate_id": certificate_document['certificate_id'],
|
||||
"token_id": certificate_document['token_id'],
|
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"share_code": certificate_document['share_code'],
|
||||
|
||||
# ✅ STUDENT INFO (GUARANTEED CORRECT)
|
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"user_name": student_entered_name,
|
||||
"student_name": student_entered_name,
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||||
|
||||
# ✅ COURSE INFO
|
||||
"course_title": certificate_document['course_title'],
|
||||
|
||||
# ✅ INSTRUCTOR INFO
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||||
"mentor_name": instructor_name,
|
||||
"instructor_name": instructor_name,
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||||
|
||||
# ✅ OTHER INFO
|
||||
"completion_date": certificate_document['completion_date'],
|
||||
"verification_url": certificate_document['verification_url'],
|
||||
"share_url": certificate_document['share_url'],
|
||||
"public_url": certificate_document['public_url'],
|
||||
"unique_url": f"/certificate/{certificate_document['share_code']}",
|
||||
"blockchain_hash": certificate_document['blockchain_hash'],
|
||||
"wallet_address": certificate_document['wallet_address'],
|
||||
|
||||
"message": f"Certificate {certificate_document['certificate_id']} created successfully for {student_entered_name}!"
|
||||
}
|
||||
|
||||
print(f"✅ RESPONSE PREPARED:")
|
||||
print(f" 🆔 Certificate ID: {certificate_response['certificate_id']}")
|
||||
print(f" 🎓 Student: '{certificate_response['user_name']}'")
|
||||
print(f" 👨🏫 Instructor: '{certificate_response['mentor_name']}'")
|
||||
|
||||
print("\n" + "="*50)
|
||||
print("🎉 CERTIFICATE MINTING COMPLETED SUCCESSFULLY!")
|
||||
print("="*50)
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"certificate": certificate_response
|
||||
}), 201
|
||||
|
||||
except Exception as e:
|
||||
print(f"\n❌ CRITICAL ERROR IN MINT_CERTIFICATE:")
|
||||
print(f"Error: {str(e)}")
|
||||
import traceback
|
||||
print(f"Traceback: {traceback.format_exc()}")
|
||||
logger.error(f"Critical error in mint_certificate: {str(e)}")
|
||||
return jsonify({"error": f"Critical error: {str(e)}"}), 500
|
||||
|
||||
@bp.route('/<certificate_id>', methods=['GET', 'OPTIONS'])
|
||||
def get_certificate_by_id(certificate_id):
|
||||
"""Get certificate by ID with proper database access"""
|
||||
if request.method == "OPTIONS":
|
||||
return jsonify({'status': 'ok'})
|
||||
|
||||
try:
|
||||
print(f"🔍 Getting certificate with ID: {certificate_id}")
|
||||
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({"error": "Database connection failed"}), 500
|
||||
|
||||
# Search by certificate_id or share_code
|
||||
certificate = db.certificates.find_one({
|
||||
"$or": [
|
||||
{"certificate_id": certificate_id},
|
||||
{"share_code": certificate_id},
|
||||
{"certificate_id": {"$regex": f"^{certificate_id}$", "$options": "i"}},
|
||||
{"share_code": {"$regex": f"^{certificate_id}$", "$options": "i"}}
|
||||
]
|
||||
})
|
||||
|
||||
if not certificate:
|
||||
return jsonify({"error": "Certificate not found"}), 404
|
||||
|
||||
if certificate.get('is_revoked', False):
|
||||
return jsonify({"error": "Certificate has been revoked"}), 410
|
||||
|
||||
# Increment view count
|
||||
try:
|
||||
db.certificates.update_one(
|
||||
{"_id": certificate["_id"]},
|
||||
{"$inc": {"view_count": 1}}
|
||||
)
|
||||
except Exception as e:
|
||||
print(f"Failed to increment view count: {e}")
|
||||
|
||||
# Return with proper field mapping
|
||||
certificate_response = {
|
||||
"certificate_id": certificate['certificate_id'],
|
||||
"share_code": certificate.get('share_code'),
|
||||
"user_name": certificate.get('student_name', certificate.get('user_name', 'Student')),
|
||||
"student_name": certificate.get('student_name', certificate.get('user_name', 'Student')),
|
||||
"course_title": certificate['course_title'],
|
||||
"mentor_name": certificate.get('instructor_name', certificate.get('mentor_name', certificate.get('course_mentor', 'OpenLearnX Instructor'))),
|
||||
"instructor_name": certificate.get('instructor_name', certificate.get('mentor_name', certificate.get('course_mentor', 'OpenLearnX Instructor'))),
|
||||
"completion_date": certificate['completion_date'],
|
||||
"status": certificate.get('status', 'active'),
|
||||
"issued_by": certificate.get('issued_by', 'OpenLearnX'),
|
||||
"blockchain_hash": certificate.get('blockchain_hash'),
|
||||
"wallet_address": certificate.get('wallet_address'),
|
||||
"view_count": certificate.get('view_count', 0),
|
||||
"public_url": certificate.get('public_url'),
|
||||
"is_verified": True,
|
||||
"is_revoked": certificate.get('is_revoked', False)
|
||||
}
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"certificate": certificate_response
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error getting certificate: {str(e)}")
|
||||
return jsonify({"error": "Failed to fetch certificate"}), 500
|
||||
|
||||
@bp.route('/verify/<share_code>', methods=['GET', 'OPTIONS'])
|
||||
def verify_certificate_by_code(share_code):
|
||||
"""Verify certificate by share code"""
|
||||
if request.method == "OPTIONS":
|
||||
return jsonify({'status': 'ok'})
|
||||
|
||||
try:
|
||||
print(f"🔍 Verifying certificate with code: {share_code}")
|
||||
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({
|
||||
"success": False,
|
||||
"verified": False,
|
||||
"message": "Database connection failed"
|
||||
}), 500
|
||||
|
||||
certificate = db.certificates.find_one({
|
||||
"$or": [
|
||||
{"share_code": share_code},
|
||||
{"certificate_id": share_code},
|
||||
{"share_code": {"$regex": f"^{share_code}$", "$options": "i"}},
|
||||
{"certificate_id": {"$regex": f"^{share_code}$", "$options": "i"}}
|
||||
]
|
||||
})
|
||||
|
||||
if not certificate:
|
||||
return jsonify({
|
||||
"success": False,
|
||||
"verified": False,
|
||||
"message": "Certificate not found"
|
||||
}), 404
|
||||
|
||||
if certificate.get('is_revoked', False):
|
||||
return jsonify({
|
||||
"success": False,
|
||||
"verified": False,
|
||||
"message": "Certificate has been revoked"
|
||||
}), 410
|
||||
|
||||
# Increment view count
|
||||
try:
|
||||
db.certificates.update_one(
|
||||
{"_id": certificate["_id"]},
|
||||
{"$inc": {"view_count": 1}}
|
||||
)
|
||||
except Exception as e:
|
||||
print(f"Failed to increment view count: {e}")
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"verified": True,
|
||||
"certificate": {
|
||||
"certificate_id": certificate['certificate_id'],
|
||||
"share_code": certificate.get('share_code'),
|
||||
"student_name": certificate.get('student_name', certificate.get('user_name', 'Student')),
|
||||
"course_title": certificate['course_title'],
|
||||
"instructor_name": certificate.get('instructor_name', certificate.get('mentor_name', certificate.get('course_mentor', 'OpenLearnX Instructor'))),
|
||||
"completion_date": certificate['completion_date'],
|
||||
"issued_by": certificate.get('issued_by', 'OpenLearnX'),
|
||||
"blockchain_hash": certificate.get('blockchain_hash'),
|
||||
"view_count": certificate.get('view_count', 0)
|
||||
},
|
||||
"message": "Certificate is valid and verified"
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error verifying certificate: {str(e)}")
|
||||
return jsonify({
|
||||
"success": False,
|
||||
"verified": False,
|
||||
"message": "Verification failed"
|
||||
}), 500
|
||||
|
||||
@bp.route('/user/<user_id>', methods=['GET', 'OPTIONS'])
|
||||
def get_user_certificates(user_id):
|
||||
"""Get all certificates for a user"""
|
||||
if request.method == "OPTIONS":
|
||||
return jsonify({'status': 'ok'})
|
||||
|
||||
try:
|
||||
auth_header = request.headers.get('Authorization', '')
|
||||
if auth_header.startswith('Bearer '):
|
||||
token = auth_header.replace('Bearer ', '')
|
||||
token_user_id, wallet_address = get_user_from_token(token)
|
||||
|
||||
if token_user_id and token_user_id != user_id:
|
||||
return jsonify({"error": "Unauthorized"}), 403
|
||||
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({"error": "Database connection failed"}), 500
|
||||
|
||||
certificates = list(db.certificates.find(
|
||||
{"user_id": user_id},
|
||||
{"_id": 0, "encrypted_wallet_id": 0}
|
||||
).sort("created_at", -1))
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"certificates": certificates,
|
||||
"count": len(certificates),
|
||||
"user_id": user_id
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error getting user certificates: {str(e)}")
|
||||
return jsonify({"error": "Failed to retrieve certificates"}), 500
|
||||
|
||||
@bp.route('/download/<certificate_id>', methods=['GET', 'OPTIONS'])
|
||||
def download_certificate(certificate_id):
|
||||
"""Download certificate as HTML for PDF conversion"""
|
||||
if request.method == "OPTIONS":
|
||||
return jsonify({'status': 'ok'})
|
||||
|
||||
try:
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({"error": "Database connection failed"}), 500
|
||||
|
||||
certificate = db.certificates.find_one({
|
||||
"$or": [
|
||||
{"certificate_id": certificate_id},
|
||||
{"share_code": certificate_id}
|
||||
]
|
||||
})
|
||||
|
||||
if not certificate:
|
||||
return jsonify({"error": "Certificate not found"}), 404
|
||||
|
||||
if certificate.get('is_revoked', False):
|
||||
return jsonify({"error": "Certificate has been revoked"}), 410
|
||||
|
||||
# Generate HTML for PDF
|
||||
certificate_html = generate_certificate_html(certificate)
|
||||
|
||||
return certificate_html, 200, {
|
||||
'Content-Type': 'text/html',
|
||||
'Content-Disposition': f'attachment; filename="Certificate_{certificate["certificate_id"]}.html"'
|
||||
}
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error downloading certificate: {str(e)}")
|
||||
return jsonify({"error": "Failed to download certificate"}), 500
|
||||
|
||||
@bp.route('/share/<certificate_id>', methods=['POST', 'OPTIONS'])
|
||||
def track_certificate_share(certificate_id):
|
||||
"""Track certificate sharing"""
|
||||
if request.method == "OPTIONS":
|
||||
return jsonify({'status': 'ok'})
|
||||
|
||||
try:
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({"error": "Database connection failed"}), 500
|
||||
|
||||
result = db.certificates.update_one(
|
||||
{
|
||||
"$or": [
|
||||
{"certificate_id": certificate_id},
|
||||
{"share_code": certificate_id}
|
||||
]
|
||||
},
|
||||
{"$inc": {"shared_count": 1}}
|
||||
)
|
||||
|
||||
if result.matched_count == 0:
|
||||
return jsonify({"error": "Certificate not found"}), 404
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"message": "Share tracked successfully"
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error tracking share: {str(e)}")
|
||||
return jsonify({"error": "Failed to track share"}), 500
|
||||
|
||||
@bp.route('/test-db', methods=['GET'])
|
||||
def test_database():
|
||||
"""Test database connectivity and write capability"""
|
||||
try:
|
||||
print("🧪 Testing database connection...")
|
||||
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({"error": "Database connection failed"}), 500
|
||||
|
||||
# Test write
|
||||
test_doc = {
|
||||
"test_id": str(uuid.uuid4()),
|
||||
"timestamp": datetime.now().isoformat(),
|
||||
"message": "Database test document"
|
||||
}
|
||||
|
||||
result = db.test_certificates.insert_one(test_doc)
|
||||
|
||||
# Test read
|
||||
saved_doc = db.test_certificates.find_one({"_id": result.inserted_id})
|
||||
|
||||
# Cleanup
|
||||
db.test_certificates.delete_one({"_id": result.inserted_id})
|
||||
|
||||
# Check existing certificates
|
||||
cert_count = db.certificates.count_documents({})
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"database_connection": "working",
|
||||
"write_test": "successful",
|
||||
"read_test": "successful",
|
||||
"existing_certificates": cert_count,
|
||||
"test_document_id": str(result.inserted_id),
|
||||
"message": "Database is working properly!"
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"❌ Database test failed: {e}")
|
||||
return jsonify({
|
||||
"success": False,
|
||||
"error": str(e),
|
||||
"message": "Database test failed"
|
||||
}), 500
|
||||
|
||||
@bp.route('/list-all', methods=['GET'])
|
||||
def list_all_certificates():
|
||||
"""List all certificates in the database"""
|
||||
try:
|
||||
db = get_db_connection()
|
||||
if db is None:
|
||||
return jsonify({"error": "Database connection failed"}), 500
|
||||
|
||||
certificates = list(db.certificates.find({}, {"_id": 0}).sort("created_at", -1))
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"certificates": certificates,
|
||||
"count": len(certificates),
|
||||
"message": f"Found {len(certificates)} certificates in database"
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
print(f"Error listing certificates: {e}")
|
||||
return jsonify({"error": str(e)}), 500
|
||||
|
||||
@bp.route('/test-generation', methods=['GET'])
|
||||
def test_generation():
|
||||
"""Test certificate ID generation"""
|
||||
try:
|
||||
ids = []
|
||||
for i in range(10):
|
||||
cert_id = generate_truly_unique_certificate_id()
|
||||
share_code = generate_unique_share_code()
|
||||
ids.append({
|
||||
"attempt": i + 1,
|
||||
"certificate_id": cert_id,
|
||||
"share_code": share_code,
|
||||
"timestamp": time.time()
|
||||
})
|
||||
time.sleep(0.01) # Small delay
|
||||
|
||||
# Check for duplicates
|
||||
cert_ids = [item["certificate_id"] for item in ids]
|
||||
share_codes = [item["share_code"] for item in ids]
|
||||
|
||||
cert_duplicates = len(cert_ids) != len(set(cert_ids))
|
||||
share_duplicates = len(share_codes) != len(set(share_codes))
|
||||
|
||||
return jsonify({
|
||||
"success": True,
|
||||
"generated_ids": ids,
|
||||
"certificate_id_duplicates": cert_duplicates,
|
||||
"share_code_duplicates": share_duplicates,
|
||||
"unique_cert_ids": len(set(cert_ids)),
|
||||
"unique_share_codes": len(set(share_codes)),
|
||||
"message": "All IDs should be unique!" if not cert_duplicates and not share_duplicates else "Duplicates detected!"
|
||||
})
|
||||
|
||||
except Exception as e:
|
||||
return jsonify({"error": str(e)}), 500
|
||||
|
||||
def generate_certificate_html(certificate):
|
||||
"""Generate HTML for certificate PDF download"""
|
||||
student_name = certificate.get('student_name', certificate.get('user_name', 'Student'))
|
||||
instructor_name = certificate.get('instructor_name', certificate.get('mentor_name', certificate.get('course_mentor', 'OpenLearnX Instructor')))
|
||||
|
||||
return f"""
|
||||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Certificate - {student_name}</title>
|
||||
<meta charset="UTF-8">
|
||||
<style>
|
||||
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Inter:wght@400;500;600&display=swap');
|
||||
|
||||
body {{
|
||||
font-family: 'Inter', sans-serif;
|
||||
margin: 0;
|
||||
padding: 40px;
|
||||
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
|
||||
min-height: 100vh;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
}}
|
||||
|
||||
.certificate {{
|
||||
background: white;
|
||||
max-width: 800px;
|
||||
width: 100%;
|
||||
margin: 0 auto;
|
||||
padding: 60px;
|
||||
border-radius: 20px;
|
||||
box-shadow: 0 25px 50px rgba(0,0,0,0.15);
|
||||
text-align: center;
|
||||
position: relative;
|
||||
border: 8px solid #4f46e5;
|
||||
}}
|
||||
|
||||
.title {{
|
||||
font-family: 'Playfair Display', serif;
|
||||
font-size: 42px;
|
||||
font-weight: 700;
|
||||
color: #4f46e5;
|
||||
margin: 20px 0;
|
||||
}}
|
||||
|
||||
.student-name {{
|
||||
font-family: 'Playfair Display', serif;
|
||||
font-size: 48px;
|
||||
color: #1f2937;
|
||||
font-weight: 700;
|
||||
margin: 40px 0;
|
||||
padding: 20px 0;
|
||||
border-top: 3px solid #4f46e5;
|
||||
border-bottom: 3px solid #4f46e5;
|
||||
text-transform: capitalize;
|
||||
}}
|
||||
|
||||
.course-title {{
|
||||
font-family: 'Playfair Display', serif;
|
||||
font-size: 28px;
|
||||
color: #1f2937;
|
||||
margin: 20px 0;
|
||||
font-weight: 600;
|
||||
font-style: italic;
|
||||
}}
|
||||
|
||||
.cert-id {{
|
||||
font-size: 14px;
|
||||
color: #9ca3af;
|
||||
margin-top: 20px;
|
||||
font-family: 'Courier New', monospace;
|
||||
background: #f9fafb;
|
||||
padding: 10px;
|
||||
border-radius: 8px;
|
||||
border: 1px solid #e5e7eb;
|
||||
}}
|
||||
|
||||
.mentor-section {{
|
||||
margin-top: 50px;
|
||||
padding-top: 30px;
|
||||
border-top: 2px solid #e5e7eb;
|
||||
}}
|
||||
|
||||
.mentor-name {{
|
||||
font-size: 18px;
|
||||
color: #1f2937;
|
||||
font-weight: 600;
|
||||
}}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
<div class="certificate">
|
||||
<div style="font-size: 60px; margin-bottom: 20px;">🏆</div>
|
||||
<h1 class="title">CERTIFICATE OF COMPLETION</h1>
|
||||
|
||||
<div style="font-size: 18px; color: #6b7280; margin-bottom: 30px;">This is to certify that</div>
|
||||
|
||||
<div class="student-name">{student_name}</div>
|
||||
|
||||
<div style="font-size: 18px; color: #6b7280; margin-bottom: 20px;">has successfully completed the course</div>
|
||||
<div class="course-title">"{certificate['course_title']}"</div>
|
||||
|
||||
<div style="font-size: 16px; color: #374151; margin: 20px 0;">
|
||||
✅ Completed on: {datetime.fromisoformat(certificate['completion_date']).strftime('%B %d, %Y')}
|
||||
</div>
|
||||
|
||||
<div class="mentor-section">
|
||||
<div style="width: 200px; height: 2px; background: #6b7280; margin: 0 auto 10px auto;"></div>
|
||||
<div class="mentor-name">{instructor_name}</div>
|
||||
<div style="font-size: 14px; color: #6b7280; margin-top: 5px;">Course Instructor</div>
|
||||
</div>
|
||||
|
||||
<div class="cert-id">
|
||||
<strong>Certificate ID: {certificate['certificate_id']}</strong><br>
|
||||
OpenLearnX Learning Platform<br>
|
||||
<span style="color: #7c3aed;">🔒 Blockchain Verified Completion</span>
|
||||
{f'<br><small>Blockchain Hash: {certificate.get("blockchain_hash", "")}</small>' if certificate.get('blockchain_hash') else ''}
|
||||
</div>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
"""
|
||||
|
||||
Reference in New Issue
Block a user