app.py 文件源码

def jsonp(view):
    def wrapped(*posargs, **kwargs):
        args = {}
        # if we access the args via get(),
        # we can get encoding errors...
        for k in request.forms:
            args[k] = getattr(request.forms, k)
        for k in request.query:
            args[k] = getattr(request.query, k)
        callback = args.get('callback')
        status_code = 200
        try:
            result = view(args, *posargs, **kwargs)
        except (KeyError) as e:#ValueError, AttributeError, KeyError) as e:
            import traceback, sys
            traceback.print_exc(file=sys.stdout)
            result = {'status':'error',
                    'message':'invalid query',
                    'details': str(e)}
            status_code = 403
        if callback:
            result = '%s(%s);' % (callback, json.dumps(result))

        if status_code == 200:
            return result
        else:
            abort(status_code, result)

    return wrapped