76 lines
2.4 KiB
Python
76 lines
2.4 KiB
Python
from functools import wraps
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from flask import request
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from api.models.trainer import Trainer
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from .errors import AuthenticationFailure
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from api.app import app
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import requests
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import json
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import jwt
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class HTTPError(Exception):
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def __init__(self, message):
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self.message = message
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class NotFound(Exception):
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def __init__(self, message):
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self.message = message
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def get_or_not_found(callback):
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try:
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resource = callback()
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if resource is None:
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raise NotFound("Resource not found")
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return resource
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except:
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raise NotFound("Resource not found")
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def get_trainer_fail(id):
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return get_or_not_found(lambda : Trainer.query.get(id))
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def get_trainer_by_nick_fail(nickname):
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return get_or_not_found(lambda : Trainer.query.filter_by(nickname=nickname).one())
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def get_pokemon_fail(trainer, id):
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return get_or_not_found(lambda : trainer.pokemons_list.filter_by(id=id).one())
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# authenticação do trainer (decorator)
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def token_required(f):
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@wraps(f)
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def decorated(*args, **kwargs):
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try:
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token = request.headers["authorization"]
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data = jwt.decode(token, app.config["SECRET_KEY"], algorithms=["HS256"])
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trainer = get_trainer_by_nick_fail(data["username"])
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except (TypeError, KeyError):
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return AuthenticationFailure("JWT token required")
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except NotFound:
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return AuthenticationFailure("Trainer not found")
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except:
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return AuthenticationFailure("JWT token is invalid or expired")
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return f(trainer, *args, **kwargs)
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return decorated
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# helpers internos
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def cant_fetch_error(pokemon):
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raise NotFound("Could not fetch data for pokemon with id {}".format(pokemon.pokemon_id))
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# seguintes funções puxam informações da pokeapi
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def set_pokemon_data(pokemon):
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try:
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response = requests.get("https://pokeapi.co/api/v2/pokemon/{}".format(pokemon.pokemon_id))
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if response.status_code != 200:
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cant_fetch_error(pokemon)
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pokemon.pokemon_data = json.loads(response.text)
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except:
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cant_fetch_error(pokemon)
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async def async_set_pokemon_data(session, pokemon):
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try:
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response = await session.get("https://pokeapi.co/api/v2/pokemon/{}".format(pokemon.pokemon_id))
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if response.status != 200:
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cant_fetch_error(pokemon)
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pokemon.pokemon_data = json.loads(await response.text())
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except:
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cant_fetch_error(pokemon)
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