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										115
									
								
								server_files/solutions.php
									
									
									
									
									
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										115
									
								
								server_files/solutions.php
									
									
									
									
									
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<?php
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include 'config.php';
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if (isset($_POST["send_solution"])) {
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    $error_message = saveSolution();
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}
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$solutions_req = $DB->prepare("SELECT `file_id`, `problem`, COUNT(`problem`) AS `version` FROM `solutions` WHERE `team` = ? GROUP BY `problem` ORDER BY `problem` ASC, `uploaded_at` DESC;");
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$solutions_req->execute([$_SESSION["team_id"]]);
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function saveSolution() {
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    global $LOCAL_PATH, $DB;
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    try {
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        $problem = $_POST["problem"];
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        if ($problem < 1 || $problem > 9)
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            return "Le numéro de problème est invalide.";
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    }
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    catch (Throwable $t) {
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        return "Le numéro de problème n'est pas valide. Merci de ne pas créer vos propres requêtes.";
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    }
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    $file = $_FILES["solution"];
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    if ($file["size"] > 5000000 || $file["error"])
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        return "Une erreur est survenue. Merci de vérifier que le fichier pèse moins que 5 Mo.";
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    if (finfo_file(finfo_open(FILEINFO_MIME_TYPE), $file["tmp_name"]) != 'application/pdf')
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        return "Le fichier doit être au format PDF.";
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    if (!is_dir("$LOCAL_PATH/files") && !mkdir("$LOCAL_PATH/files"))
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        return "Les droits sont insuffisants. Veuillez contacter l'administrateur du serveur.";
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    $alphabet = "abcdefghijklmnopqrstuvwxyz0123456789";
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    do {
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        $id = "";
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        for ($i = 0; $i < 64; ++$i) {
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            $id .= $alphabet[rand(0, strlen($alphabet) - 1)];
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        }
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    }
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    while (file_exists("$LOCAL_PATH/files/$id"));
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    if (!rename($file["tmp_name"], "$LOCAL_PATH/files/$id"))
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        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`)
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                VALUES (?, ?, ?, ?);");
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    $req->execute([$id, $_SESSION["team_id"], $_SESSION["tournament_id"], $problem]);
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    return false;
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}
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?>
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<?php include 'header.php' ?>
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<?php if (isset($error_message)) {
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    if ($error_message !== false) {
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        echo "<h2>Erreur : " . $error_message . "</h2>";
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    } else {
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        echo "<h2>Le fichier a été correctement envoyé !</h2>";
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    }
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}?>
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<form method="post" enctype="multipart/form-data">
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    <input type="hidden" name="MAX_FILE_SIZE" value="5000000" />
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    <table>
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        <tbody>
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        <tr>
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            <td>
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                <label for="problem">Problème :</label>
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            </td>
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            <td>
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                <select id="problem" name="problem">
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                    <?php
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                    for ($i = 1; $i <= 9; ++$i) {
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                        echo "<option value=\"$i\">$i</option>\n";
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                    }
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                    ?>
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                </select>
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            </td>
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        </tr>
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        <tr>
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            <td>
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                <label for="file">Fichier :</label>
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            </td>
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            <td>
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                <input type="file" id="file" name="solution" />
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            </td>
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        </tr>
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        <tr>
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            <td colspan="2">
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                <input style="width: 100%;" type="submit" name="send_solution" value="Envoyer" />
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            </td>
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        </tr>
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        </tbody>
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    </table>
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</form>
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<div style="padding: 20px"></div>
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<h2>Solutions soumises :</h2>
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<?php
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while (($data = $solutions_req->fetch()) !== false) {
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    $file_id = $data["file_id"];
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    $problem = $data["problem"];
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    $version = $data["version"];
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    echo "Problème $problem (Version $version) : <a href=\"$URL_BASE/file/$file_id\">Télécharger</a><br />";
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}
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?>
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<?php include 'footer.php' ?>
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