/
hackathon.py
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/
hackathon.py
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from flask import Flask, jsonify, send_file, request
from models import Company, Furniture, FileModel, Category
from hashlib import md5
from flask_cors import CORS, cross_origin
import jwt
import datetime
TOKEN_EXPIRED = 0
TOKEN_INVALID = 1
app = Flask(__name__)
cors = CORS(app, resources={r"/api/*": {"origins": "*"}}, expose_headers=['Content-Disposition'])
def encode_token(username):
payload = {
'username': username,
'exp': datetime.datetime.utcnow() + datetime.timedelta(hours=6),
'iat': datetime.datetime.utcnow()
}
return jwt.encode(
payload,
'aaa',
algorithm='HS256'
)
def to_md5(password):
return md5(password.encode('utf-8')).hexdigest()
def decode_token(token):
try:
payload = jwt.decode(token, app.config.get('SECRET_KEY'), algorithms='HS256')
except jwt.ExpiredSignatureError:
return TOKEN_EXPIRED
except jwt.InvalidTokenError:
return TOKEN_INVALID
return payload['username']
@app.route('/api/companies', methods=['GET'])
def get_companies():
response = {
'companies': [{
'name': c.company_name,
'label': "/api/company/%s/label" % c.company_name
} for c in Company.objects]
}
return jsonify(response)
@app.route('/api/company/<string:name>', methods=['GET'])
def get_company(name):
c = Company.objects(name=name).first()
response = {
'company': {
'name': c.company_name,
'label': "/api/company/%s/label" % c.company_name
}}
return jsonify(response)
@app.route('/api/auth/register', methods=['POST'])
@cross_origin()
def new_company():
json = request.json
name = json['name']
company_name = json['company_name']
password = json['password']
cities = json['cities']
company_label = json['company_label']
company = Company(name=name,
company_name=company_name,
password=to_md5(password),
cities=cities,
label=company_label).save()
return encode_token(company.name)
@app.route('/api/auth/login', methods=['POST'])
@cross_origin()
def login():
json = request.json
name = json['name']
password = json['password']
company = Company.objects(name=name, password=to_md5(password)).first()
if company:
return encode_token(name)
else:
return '', 400
@app.route('/api/furniture', methods=['GET'])
def all_furniture():
response = {'furniture': [
{
'name': f.name,
'price': f.price,
'preview_url': "/api/furniture/%s/preview" % str(f.id),
'model_url': "/api/furniture/%s/model" % str(f.id),
'id': str(f.id)
} for f in Furniture.objects
]
}
return jsonify(response)
@app.route('/api/furniture/<string:_id>', methods=['GET'])
@cross_origin()
def furniture(_id):
f = Furniture.objects(id=_id).first()
response = {'furniture': {
'name': f.name,
'price': f.price,
'preview_url': "/api/furniture/%s/preview" % str(f.id),
'model_url': "/api/furniture/%s/model" % str(f.id),
'id': str(f.id)
}}
return jsonify(response)
@app.route('/api/furniture', methods=['POST'])
@cross_origin()
def new_furniture():
json = request.json
preview_id = json['preview']
graphic_model_id = json['model']
preview_file = FileModel(id=preview_id).objects.first()
graphic_file = FileModel(id=graphic_model_id).objects.first()
token = json['token']
category = json['category']
cat = Category.objects(name=category).first()
if not cat:
cat = Category(name=category).save()
name = decode_token(token)
if name is TOKEN_EXPIRED and name is TOKEN_INVALID:
return '', 400
company = Company.objects(name=name).first()
company.categories.append(cat) # FIXME all mongoengine queries
company.save()
if not company:
return '', 400
furn = Furniture(seller=company,
name=json['name'],
category=cat,
price=json['price'],
graphic_model=graphic_file,
preview_file=preview_file,
).save()
company.furniture.append(furn)
company.save()
cat.companies.append(company)
cat.furniture.append(furn)
cat.save()
return jsonify({'id': str(furn.id)}), 201
@app.route('/api/files', methods=['POST'])
@cross_origin()
def files():
if not request.files['file']:
return '', 400
file = FileModel()
file.file.put(request.files['file'],
content_type=request.files['file'].content_type,
filename=request.files['file'].filename)
file.save()
return jsonify({'id': str(file.id)})
@app.route('/api/furniture/<string:_id>', methods=['DELETE'])
@cross_origin()
def delete_furniture(_id):
json = request.get_json()
name = decode_token(json['token'])
if name is TOKEN_INVALID or name is TOKEN_EXPIRED:
return '', 403
company = Company.objects(name=name).first()
furn = Furniture.objects(id=id).first()
if furn.seller is company:
furn.delete()
return ''
else:
return '', 403
@app.route('/api/furniture/<string:_id>/preview', methods=['GET'])
@cross_origin()
def furniture_preview(_id):
furn = Furniture.objects(id=_id).first()
if not furn:
return '', 404
preview = furn.preview.file
return send_file(preview, mimetype=preview.content_type,
attachment_filename=preview.filename,
as_attachment=True)
@app.route('/api/furniture/<string:_id>/model', methods=['GET'])
@cross_origin()
def furniture_model(_id):
furn = Furniture.objects(id=_id).first()
if not furn:
return '', 404
model = furn.graphic_model.file
return send_file(model, mimetype=model.content_type,
attachment_filename=model.filename,
as_attachment=True)
@app.route('/api/company/<string:companyname>/label', methods=['GET'])
def company_label(companyname):
company = Company.objects(company_name=companyname).first()
if not company:
return '', 404
label = company.label.file
return send_file(label, mimetype=label.content_type,
attachment_filename=label.filename,
as_attachment=True)
@app.route('/api/categories', methods=['GET'])
@cross_origin()
def get_categories():
name = request.args.get('name')
company = Company.objects(name=name).first()
response = {'categories': []}
for cat in company.categories:
furn = cat.furniture.first()
if furn:
response['categories'].append({
'category': cat.name,
'preview_url': "/api/furniture/%s/preview" % str(furn.id)
})
return jsonify(response)
if __name__ == '__main__':
app.run(host='127.0.0.1', port=5001, debug=True)