source: trunk/common/job.php @ 1061

<?php

require_once(IA_ROOT_DIR.'common/db/job.php');
require_once(IA_ROOT_DIR.'common/db/task.php');
require_once(IA_ROOT_DIR.'common/db/round.php');

// Safe function to validate and submit a job.
// $args contains:
//      task_id: Task to submit for.
//      round_id: Round to submit for. Optional, if missing the job is sent
//              to all parent rounds.
//      compiler_id: c, cpp, fpc, or py.
//      solution: A string with the file to submit.
//
// Returns an array of errors, or array() on success.
function safe_job_submit($args, $user) {
    $errors = array();

    // Validate task id.
    $task = null;
    if (!array_key_exists('task_id', $args)) {
        $errors['task_id'] = "Lipseste id-ul task-ului.";
    } else if (!is_task_id($args['task_id'])) {
        $errors['task_id'] = "Id de task invalid.";
    } else if (is_null($task = task_get($args['task_id']))) {
        $errors['task_id'] = "Task-ul {$args['task_id']} nu exista.";
    }

    // Validate round id.
    $round = null;
    if (!array_key_exists('round_id', $args)) {
        $errors['round_id'] = "Nu ai specificat un concurs.";
    } else if (!is_round_id($args['round_id'])) {
        $errors['round_id'] = "Nu ai specificat un concurs corect.";
    } else if (is_null($round = round_get($args['round_id']))) {
        $errors['round_id'] = "Runda '{$args['round_id']}' nu exista.";
    }
    // Check if task is new and hasn't been added to any rounds
    if (getattr($args, "round_id") == "" &&
        !task_get_submit_rounds($task["id"], $user) &&
        security_query($user, 'task-submit', $task)) {
        unset($errors["round_id"]);
    }

    // Validate compiler id
    $valid_compilers = array('c', 'cpp', 'fpc', 'py');
    if (!array_key_exists('compiler_id', $args)) {
        $errors['compiler_id'] = "Lipseste compilatorul.";
    } else if (array_search($args['compiler_id'], $valid_compilers) === false) {
        $errors['compiler_id'] = "Compilator invalid.";
    }
    // HACK: For the moment, only admin`s are allowed to submit Python jobs.
    // TODO: Remove this once Python support is stable.
    if ('py' == $args['compiler_id'] && !user_is_admin($user)) {
        $errors['compiler_id'] = 'Deocamdata, numai administratorii pot '
                .'trimite surse Python.';
    }

    // Validate solution
    if (!array_key_exists('solution', $args)) {
        $errors['solution'] = "Lipseste fisierul solutie.";
    } else if (!is_string($args['solution'])) {
        $errors['solution'] = "Solution trebuie sa fie string.";
    } else if (IA_SUBMISSION_MAXSIZE <= strlen($args['solution'])) {
        $errors['solution'] = "Solutia depaseste dimensiunea maxima admisa:".
                ((int)IA_SUBMISSION_MAXSIZE / 1024).'KB.';
    }

    // Check task submit security
    if ($task && !security_query($user, 'task-submit', $task)) {
        $errors[] = "Nu ai voie sa trimiti la acest task.";
    }
    if ($round && !security_query($user, 'round-submit', $round)) {
        $errors[] = "Nu poti sa trimiti la aceasta runda.";
    }

    // Only now create the job.
    if (count($errors) === 0) {
        job_create($args['task_id'], $args['round_id'], $user['id'],
                $args['compiler_id'], $args['solution'],
                getattr($args, 'remote_ip_info'));
    }

    return $errors;
}