plateforme-tfjm2/server_files/controllers/solutions.php

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<?php
if (!isset($_SESSION["team"]))
require_once "server_files/403.php";
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if (isset($_POST["send_solution"])) {
$error_message = saveSolution();
}
/** @var Team $team */
$team = $_SESSION["team"];
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$solutions_req = $DB->prepare("SELECT `file_id`, `problem`, COUNT(`problem`) AS `version` FROM `solutions` WHERE `team` = ? AND `tournament` = ? GROUP BY `problem`, `uploaded_at` ORDER BY `problem`, `uploaded_at` DESC;");
$solutions_req->execute([$team->getId(), $_SESSION[$team->isSelectedForFinal() ? $_SESSION["final"]->getId() : $team->getTournamentId()]]);
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$tournament = Tournament::fromId($team->isSelectedForFinal() ? $_SESSION["final"]->getId() : $team->getTournamentId());
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function saveSolution() {
global $LOCAL_PATH, $DB;
try {
$problem = $_POST["problem"];
if ($problem < 1 || $problem > 9)
return "Le numéro de problème est invalide.";
}
catch (Throwable $t) {
return "Le numéro de problème n'est pas valide. Merci de ne pas créer vos propres requêtes.";
}
$file = $_FILES["solution"];
if ($file["size"] > 5000000 || $file["error"])
return "Une erreur est survenue. Merci de vérifier que le fichier pèse moins que 5 Mo.";
if (finfo_file(finfo_open(FILEINFO_MIME_TYPE), $file["tmp_name"]) != 'application/pdf')
return "Le fichier doit être au format PDF.";
if (!is_dir("$LOCAL_PATH/files") && !mkdir("$LOCAL_PATH/files"))
return "Les droits sont insuffisants. Veuillez contacter l'administrateur du serveur.";
$alphabet = "abcdefghijklmnopqrstuvwxyz0123456789";
do {
$id = "";
for ($i = 0; $i < 64; ++$i) {
$id .= $alphabet[rand(0, strlen($alphabet) - 1)];
}
}
while (file_exists("$LOCAL_PATH/files/$id"));
if (!rename($file["tmp_name"], "$LOCAL_PATH/files/$id"))
return "Une erreur est survenue lors de l'envoi du fichier.";
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$req = $DB->prepare("INSERT INTO `solutions`(`file_id`, `team`, `tournament`, `problem`) VALUES (?, ?, ?, ?);");
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$req->execute([$id, $_SESSION["team_id"], $_SESSION["tournament_id"], $problem]);
return false;
}
require_once "server_files/views/solutions.php";