function canKillJobMiddleware(req: express.Request, res: express.Response, next: express.NextFunction) {
    let jobInfo = getJobInfo(req);
    let user = getUser(req);
    if (user.profile.canKillOtherUsersJob || user.userId === jobInfo.userId)
        next();
    else
        res.status(401).json(errors.not_authorized);
}

jobOperationRouter.get('/result', (req: express.Request, res: express.Response) => {
    let dispatcher = getDispatcher(req);
    let jobInfo = getJobInfo(req);
    dispatcher.getJobResult(jobInfo.jobId)
    .then((jobResult:IJobResult) => {
        res.json(jobResult);
    }).catch((err: any) => {
        res.status(400).json(err);
    });
});

function getTaskResultMiddleware(req: express.Request, res: express.Response, next: express.NextFunction) {
    let jobInfo = getJobInfo(req);
    let taskIndex:string = req.params['taskIndex'];
    let t: number = parseInt(taskIndex);
    if (isNaN(t) || t < 0 || t >= jobInfo.numTasks)
        res.status(400).json(errors.bad_task_index);
    else {
        let dispatcher = getDispatcher(req);
        dispatcher.getTaskResult({j: jobInfo.jobId, t})
        .then((taskResult: ITaskResult) => {
            req['taskResult'] = taskResult;
            next();
        }).catch((err: any) => {
            res.status(400).json(err);
        });
    }
}

jobOperationRouter.get('/info', (req: express.Request, res: express.Response) => {
    res.json(getJobInfo(req));
});