class.ilKprimChoiceWizardInputGUI.php

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<?php
 
class ilKprimChoiceWizardInputGUI extends ilSingleChoiceWizardInputGUI
{
    public const CUSTOM_UPLOAD_ERR = 99;
 
    protected $tpl;
 
    protected $qstObject;
 
    private $files;
 
    private $ignoreMissingUploadsEnabled;
 
    public function __construct($a_title = "", $a_postvar = "")
    {
        parent::__construct($a_title, $a_postvar);
 
        global $DIC;
        $lng = $DIC['lng'];
        $tpl = $DIC['tpl'];
 
        $this->lng = $lng;
        $this->tpl = $tpl;
 
        $this->files = [];
 
        $this->ignoreMissingUploadsEnabled = false;
    }
 
    public function setFiles($files): void
    {
        $this->files = $files;
    }
 
    public function getFiles(): array
    {
        return $this->files;
    }
 
    public function setIgnoreMissingUploadsEnabled($ignoreMissingUploadsEnabled): void
    {
        $this->ignoreMissingUploadsEnabled = $ignoreMissingUploadsEnabled;
    }
 
    public function isIgnoreMissingUploadsEnabled(): bool
    {
        return $this->ignoreMissingUploadsEnabled;
    }
 
    public function setValue($a_value): void
    {
        $this->values = [];
 
        $answer_type = $this->str('answer_type');
        $a_value = $this->cleanupAnswerText($a_value, $answer_type === 'multiLine');
        $answers = $this->forms_helper->transformArray($a_value, 'answer', $this->refinery->kindlyTo()->string());
        $imagename = $this->forms_helper->transformArray($a_value, 'imagename', $this->refinery->kindlyTo()->string());
        $correctness = $this->forms_helper->transformArray($a_value, 'correctness', $this->refinery->kindlyTo()->bool());
 
        foreach ($answers as $index => $value) {
            $answer = new ilAssKprimChoiceAnswer();
 
            $answer->setPosition($index);
            $answer->setAnswertext($value);
            $answer->setThumbPrefix($this->qstObject->getThumbPrefix());
            $answer->setImageFsDir($this->qstObject->getImagePath());
            $answer->setImageWebDir($this->qstObject->getImagePathWeb());
 
            if ($this->forms_helper->inArray($imagename, $index)) {
                $answer->setImageFile($imagename[$index]);
            }
 
            if (isset($correctness[$index])) {
                $answer->setCorrectness($correctness[$index]);
            }
 
            $this->values[] = $answer;
        }
 
        #vd($this->values);
    }
 
    public function checkInput(): bool
    {
        $data = $this->raw($this->getPostVar());
 
        if (!is_array($data)) {
            $this->setAlert($this->lng->txt('msg_input_is_required'));
            return false;
        }
 
        // check answers
        $answers = $this->checkAnswersInput($data);
        if (!is_array($answers)) {
            $this->setAlert($this->lng->txt($answers));
            return false;
        }
 
        // check correctness
        $correctness = $this->forms_helper->transformArray($data, 'correctness', $this->refinery->kindlyTo()->bool());
        if (count($answers) !== count($correctness)) {
            $this->setAlert($this->lng->txt('msg_input_is_required'));
            return false;
        }
 
        if (!$this->checkUploads($data)) {
            return false;
        }
 
        return $this->checkSubItemsInput();
    }
 
    public function insert(ilTemplate $a_tpl): void
    {
        $tpl = new ilTemplate("tpl.prop_kprimchoicewizardinput.html", true, true, "components/ILIAS/TestQuestionPool");
 
        foreach ($this->values as $value) {
            if ($this->getSingleline()) {
                if (!$this->hideImages) {
                    if ($value->getImageFile() !== null
                        && $value->getImageFile() !== '') {
                        $imagename = $value->getImageWebPath();
 
                        if (($this->getSingleline()) && ($this->qstObject->getThumbSize())) {
                            if (@file_exists($value->getThumbFsPath())) {
                                $imagename = $value->getThumbWebPath();
                            }
                        }
 
                        $tpl->setCurrentBlock('image');
                        $tpl->setVariable('SRC_IMAGE', $imagename);
                        $tpl->setVariable('IMAGE_NAME', $value->getImageFile());
                        $tpl->setVariable(
                            'ALT_IMAGE',
                            ilLegacyFormElementsUtil::prepareFormOutput($value->getAnswertext())
                        );
                        $tpl->setVariable("TXT_DELETE_EXISTING", $this->lng->txt("delete_existing_file"));
                        $tpl->setVariable("IMAGE_ROW_NUMBER", $value->getPosition());
                        $tpl->setVariable("IMAGE_POST_VAR", $this->getPostVar());
                        $tpl->parseCurrentBlock();
                    }
                    $tpl->setCurrentBlock('addimage');
                    $tpl->setVariable("IMAGE_BROWSE", $this->lng->txt('select_file'));
                    $tpl->setVariable("IMAGE_ID", $this->getPostVar() . "[image][{$value->getPosition()}]");
                    $tpl->setVariable('MAX_SIZE_WARNING', $this->lng->txt('form_msg_file_size_exceeds'));
                    $tpl->setVariable('MAX_SIZE', $this->upload_limit->getPhpUploadLimitInBytes());
                    $tpl->setVariable("IMAGE_SUBMIT", $this->lng->txt("upload"));
                    $tpl->setVariable("IMAGE_ROW_NUMBER", $value->getPosition());
                    $tpl->setVariable("IMAGE_POST_VAR", $this->getPostVar());
                    $tpl->parseCurrentBlock();
                }
 
                $tpl->setCurrentBlock("prop_text_propval");
                $tpl->setVariable(
                    "PROPERTY_VALUE",
                    ilLegacyFormElementsUtil::prepareFormOutput(htmlspecialchars_decode((string) $value->getAnswertext()))
                );
                $tpl->parseCurrentBlock();
 
                $tpl->setCurrentBlock('singleline');
                $tpl->setVariable("SIZE", $this->getSize());
                $tpl->setVariable("SINGLELINE_ID", $this->getPostVar() . "[answer][{$value->getPosition()}]");
                $tpl->setVariable("SINGLELINE_ROW_NUMBER", $value->getPosition());
                $tpl->setVariable("SINGLELINE_POST_VAR", $this->getPostVar());
                $tpl->setVariable("MAXLENGTH", $this->getMaxLength());
                if ($this->getDisabled()) {
                    $tpl->setVariable("DISABLED_SINGLELINE", " disabled=\"disabled\"");
                }
                $tpl->parseCurrentBlock();
            } elseif (!$this->getSingleline()) {
                $tpl->setCurrentBlock('multiline');
                $tpl->setVariable(
                    "PROPERTY_VALUE",
                    ilLegacyFormElementsUtil::prepareFormOutput((string) $value->getAnswertext())
                );
                $tpl->setVariable("MULTILINE_ID", $this->getPostVar() . "[answer][{$value->getPosition()}]");
                $tpl->setVariable("MULTILINE_ROW_NUMBER", $value->getPosition());
                $tpl->setVariable("MULTILINE_POST_VAR", $this->getPostVar());
                $tpl->setVariable("MAXLENGTH", $this->getMaxLength());
                if ($this->getDisabled()) {
                    $tpl->setVariable("DISABLED_MULTILINE", " disabled=\"disabled\"");
                }
                $tpl->parseCurrentBlock();
            }
            if ($this->getAllowMove()) {
                $tpl->setCurrentBlock("move");
                $tpl->setVariable("UP_ID", "up_{$this->getPostVar()}[{$value->getPosition()}]");
                $tpl->setVariable("DOWN_ID", "down_{$this->getPostVar()}[{$value->getPosition()}]");
                $tpl->setVariable("UP_BUTTON", $this->renderer->render(
                    $this->glyph_factory->up()->withAction('#')
                ));
                $tpl->setVariable("DOWN_BUTTON", $this->renderer->render(
                    $this->glyph_factory->down()->withAction('#')
                ));
                $tpl->parseCurrentBlock();
            }
 
            $tpl->setCurrentBlock("row");
 
            $tpl->setVariable("POST_VAR", $this->getPostVar());
            $tpl->setVariable("ROW_NUMBER", $value->getPosition());
            $tpl->setVariable("ID", $this->getPostVar() . "[answer][{$value->getPosition()}]");
 
            $tpl->setVariable(
                "CORRECTNESS_TRUE_ID",
                $this->getPostVar() . "[correctness][{$value->getPosition()}][true]"
            );
            $tpl->setVariable(
                "CORRECTNESS_FALSE_ID",
                $this->getPostVar() . "[correctness][{$value->getPosition()}][false]"
            );
            $tpl->setVariable("CORRECTNESS_TRUE_VALUE", 1);
            $tpl->setVariable("CORRECTNESS_FALSE_VALUE", 0);
 
            if ($value->getCorrectness() !== null) {
                if ($value->getCorrectness()) {
                    $tpl->setVariable('CORRECTNESS_TRUE_SELECTED', ' checked="checked"');
                } else {
                    $tpl->setVariable('CORRECTNESS_FALSE_SELECTED', ' checked="checked"');
                }
            }
 
            if ($this->getDisabled()) {
                $tpl->setVariable("DISABLED_CORRECTNESS", " disabled=\"disabled\"");
            }
 
            $tpl->parseCurrentBlock();
        }
 
        if ($this->getSingleline()) {
            if (!$this->hideImages) {
                if (is_array($this->getSuffixes())) {
                    $suff_str = $delim = "";
                    foreach ($this->getSuffixes() as $suffix) {
                        $suff_str .= $delim . "." . $suffix;
                        $delim = ", ";
                    }
                    $tpl->setCurrentBlock('allowed_image_suffixes');
                    $tpl->setVariable("TXT_ALLOWED_SUFFIXES", $this->lng->txt("file_allowed_suffixes") . " " . $suff_str);
                    $tpl->parseCurrentBlock();
                }
 
                $tpl->setCurrentBlock("image_heading");
                $tpl->setVariable("ANSWER_IMAGE", $this->lng->txt('answer_image'));
                $tpl->setVariable("TXT_MAX_SIZE", ilFileUtils::getFileSizeInfo());
                $tpl->parseCurrentBlock();
            }
        }
 
        foreach ($this->qstObject->getValidOptionLabels() as $optionLabel) {
            if ($this->qstObject->isCustomOptionLabel($optionLabel)) {
                continue;
            }
 
            $tpl->setCurrentBlock('option_label_translations');
            $tpl->setVariable('OPTION_LABEL', $optionLabel);
            $tpl->setVariable('TRANSLATION_TRUE', $this->qstObject->getTrueOptionLabelTranslation($this->lng, $optionLabel));
            $tpl->setVariable('TRANSLATION_FALSE', $this->qstObject->getFalseOptionLabelTranslation($this->lng, $optionLabel));
            $tpl->parseCurrentBlock();
        }
 
        $tpl->setVariable("ELEMENT_ID", $this->getPostVar());
        $tpl->setVariable("DELETE_IMAGE_HEADER", $this->lng->txt('delete_image_header'));
        $tpl->setVariable("DELETE_IMAGE_QUESTION", $this->lng->txt('delete_image_question'));
        $tpl->setVariable("ANSWER_TEXT", $this->lng->txt('answer_text'));
 
        $tpl->setVariable("OPTIONS_TEXT", $this->lng->txt('options'));
 
        $a_tpl->setCurrentBlock("prop_generic");
        $a_tpl->setVariable("PROP_GENERIC", $tpl->get());
        $a_tpl->parseCurrentBlock();
 
        $this->tpl->addJavascript("assets/js/answerwizardinput.js");
        $this->tpl->addJavascript("assets/js/kprimchoicewizard.js");
        $this->tpl->addJavascript('assets/js/ilAssKprimChoice.js');
    }
 
    public function checkUploads($foundvalues): bool
    {
        if (is_array($_FILES) && count($_FILES) && $this->getSingleline()) {
            if (!$this->hideImages) {
                if (is_array($_FILES[$this->getPostVar()]['error']['image'])) {
                    foreach ($_FILES[$this->getPostVar()]['error']['image'] as $index => $error) {
                        // error handling
                        if ($error > 0) {
                            switch ($error) {
                                case UPLOAD_ERR_FORM_SIZE:
                                case UPLOAD_ERR_INI_SIZE:
                                    $this->setAlert($this->lng->txt("form_msg_file_size_exceeds"));
                                    return false;
                                    break;
 
                                case UPLOAD_ERR_PARTIAL:
                                    $this->setAlert($this->lng->txt("form_msg_file_partially_uploaded"));
                                    return false;
                                    break;
 
                                case UPLOAD_ERR_NO_FILE:
                                    if ($this->getRequired() && !$this->isIgnoreMissingUploadsEnabled()) {
                                        $has_image = isset($foundvalues['imagename'][$index]) ? true : false;
                                        if (!$has_image && (!strlen($foundvalues['answer'][$index]))) {
                                            $this->setAlert($this->lng->txt("form_msg_file_no_upload"));
                                            return false;
                                        }
                                    }
                                    break;
 
                                case UPLOAD_ERR_NO_TMP_DIR:
                                    $this->setAlert($this->lng->txt("form_msg_file_missing_tmp_dir"));
                                    return false;
                                    break;
 
                                case UPLOAD_ERR_CANT_WRITE:
                                    $this->setAlert($this->lng->txt("form_msg_file_cannot_write_to_disk"));
                                    return false;
                                    break;
 
                                case UPLOAD_ERR_EXTENSION:
                                    $this->setAlert($this->lng->txt("form_msg_file_upload_stopped_ext"));
                                    return false;
                                    break;
                            }
                        }
                    }
                } else {
                    if ($this->getRequired()) {
                        $this->setAlert($this->lng->txt("form_msg_file_no_upload"));
                        return false;
                    }
                }
 
                if (is_array($_FILES[$this->getPostVar()]['tmp_name']['image'])) {
                    foreach ($_FILES[$this->getPostVar()]['tmp_name']['image'] as $index => $tmpname) {
                        $filename = $_FILES[$this->getPostVar()]['name']['image'][$index];
                        $filename_arr = pathinfo($filename);
                        if (isset($filename_arr["extension"])) {
                            $suffix = $filename_arr["extension"];
                            $mimetype = $_FILES[$this->getPostVar()]['type']['image'][$index];
                            $size_bytes = $_FILES[$this->getPostVar()]['size']['image'][$index];
                            // check suffixes
                            if (strlen($tmpname) && is_array($this->getSuffixes())) {
                                if (!in_array(strtolower($suffix), $this->getSuffixes())) {
                                    $this->setAlert($this->lng->txt("form_msg_file_wrong_file_type"));
                                    return false;
                                }
                            }
                        }
                    }
                }
 
                if (is_array($_FILES[$this->getPostVar()]['tmp_name']['image'])) {
                    foreach ($_FILES[$this->getPostVar()]['tmp_name']['image'] as $index => $tmpname) {
                        if ($_FILES[$this->getPostVar()]['error']['image'][$index] > 0) {
                            continue;
                        }
 
                        $mimetype = ilObjMediaObject::getMimeType($tmpname);
 
                        if (!preg_match("/^image/", $mimetype)) {
                            $_FILES[$this->getPostVar()]['error']['image'][$index] = self::CUSTOM_UPLOAD_ERR;
                            $this->setAlert($this->lng->txt("form_msg_file_wrong_mime_type"));
                            return false;
                        }
                    }
                }
 
 
                if (is_array($_FILES[$this->getPostVar()]['tmp_name']['image'])) {
                    foreach ($_FILES[$this->getPostVar()]['tmp_name']['image'] as $index => $tmpname) {
                        $filename = $_FILES[$this->getPostVar()]['name']['image'][$index];
                        $filename_arr = pathinfo($filename);
                        if (isset($filename_arr["extension"])) {
                            $suffix = $filename_arr["extension"];
                            $mimetype = $_FILES[$this->getPostVar()]['type']['image'][$index];
                            $size_bytes = $_FILES[$this->getPostVar()]['size']['image'][$index];
                            // virus handling
                            if (strlen($tmpname)) {
                                $vir = ilVirusScanner::virusHandling($tmpname, $filename);
                                if ($vir[0] == false) {
                                    $_FILES[$this->getPostVar()]['error']['image'][$index] = self::CUSTOM_UPLOAD_ERR;
                                    $this->setAlert($this->lng->txt("form_msg_file_virus_found") . "<br />" . $vir[1]);
                                    return false;
                                }
                            }
                        }
                    }
                }
            }
        }
 
        return true;
    }
 
    public function collectValidFiles(): void
    {
        foreach ($_FILES[$this->getPostVar()]['error']['image'] as $index => $err) {
            if ($err > 0) {
                continue;
            }
 
            $this->files[$index] = [
                'position' => $index,
                'tmp_name' => $_FILES[$this->getPostVar()]['tmp_name']['image'][$index],
                'name' => $_FILES[$this->getPostVar()]['name']['image'][$index],
                'type' => $_FILES[$this->getPostVar()]['type']['image'][$index],
                'size' => $_FILES[$this->getPostVar()]['size']['image'][$index]
            ];
        }
    }
 
    private function cleanupAnswerText(array $answer_text, bool $is_rte): array
    {
        if (!is_array($answer_text)) {
            return [];
        }
 
        if ($is_rte) {
            return ilArrayUtil::stripSlashesRecursive(
                $answer_text,
                false,
                ilRTESettings::_getUsedHTMLTagsAsString("assessment")
            );
        }
 
        return ilArrayUtil::stripSlashesRecursive(
            $answer_text,
            true,
            assQuestionGUI::ALLOWED_PLAIN_TEXT_TAGS
        );
    }
}