main/admin/settings.lib.php ➔ handle_stylesheets()

Complexity

Conditions	44
Paths	> 20000

Size

Total Lines	261
Code Lines	169

Duplication

Lines	0
Ratio	0 %

<?php
function handle_stylesheets()
{
    global $_configuration;

    // Current style.
    $currentstyle = api_get_setting('stylesheets');

    $is_style_changeable = false;

    if ($_configuration['access_url'] != 1) {
        $style_info = api_get_settings('stylesheets', '', 1, 0);
        $url_info = api_get_access_url($_configuration['access_url']);
        if ($style_info[0]['access_url_changeable'] == 1 && $url_info['active'] == 1) {
            $is_style_changeable = true;
        }
    } else {
        $is_style_changeable = true;
    }

    $form = new FormValidator(
        'stylesheet_upload',
        'post',
        'settings.php?category=Stylesheets#tabs-3'
    );
    $form->addElement('text', 'name_stylesheet', get_lang('NameStylesheet'), array('size' => '40', 'maxlength' => '40'));
    $form->addRule('name_stylesheet', get_lang('ThisFieldIsRequired'), 'required');
    $form->addElement('file', 'new_stylesheet', get_lang('UploadNewStylesheet'));
    $allowed_file_types = array('css', 'zip', 'jpeg', 'jpg', 'png', 'gif', 'ico', 'psd', 'xcf', 'svg', 'webp', 'woff', 'woff2');

    $form->addRule('new_stylesheet', get_lang('InvalidExtension').' ('.implode(',', $allowed_file_types).')', 'filetype', $allowed_file_types);
    $form->addRule('new_stylesheet', get_lang('ThisFieldIsRequired'), 'required');
    $form->addButtonUpload(get_lang('Upload'), 'stylesheet_upload');

    $show_upload_form = false;

    if (!is_writable(CSS_UPLOAD_PATH)) {
        Display::display_error_message(CSS_UPLOAD_PATH.get_lang('IsNotWritable'));
    } else {
        // Uploading a new stylesheet.
        if ($_configuration['access_url'] == 1) {
            $show_upload_form = true;
        } else {
            if ($is_style_changeable) {
                $show_upload_form = true;
            }
        }
    }

    // Stylesheet upload.

    if (isset($_POST['stylesheet_upload'])) {
        if ($form->validate()) {
            $values = $form->exportValues();
            $picture_element = $form->getElement('new_stylesheet');
            $picture = $picture_element->getValue();
            $result = upload_stylesheet($values, $picture);

            // Add event to the system log.
            $user_id = api_get_user_id();
            $category = $_GET['category'];
            Event::addEvent(
                LOG_CONFIGURATION_SETTINGS_CHANGE,
                LOG_CONFIGURATION_SETTINGS_CATEGORY,
                $category,
                api_get_utc_datetime(),
                $user_id
            );

            if ($result) {
                Display::display_confirmation_message(get_lang('StylesheetAdded'));
            }
        }
    }

    $form_change = new FormValidator(
        'stylesheet_upload',
        'post',
        api_get_self().'?category=Stylesheets',
        null,
        array('id' => 'stylesheets_id')
    );

    $list_of_names  = array();
    $selected = '';
    $dirpath = '';
    $safe_style_dir = '';

    if ($handle = @opendir(CSS_UPLOAD_PATH)) {
        $counter = 1;
        while (false !== ($style_dir = readdir($handle))) {
            if (substr($style_dir, 0, 1) == '.') {
                // Skip directories starting with a '.'
                continue;
            }
            $dirpath = CSS_UPLOAD_PATH.$style_dir;

            if (is_dir($dirpath)) {
                if ($style_dir != '.' && $style_dir != '..') {
                    if (isset($_POST['style']) &&
                        (isset($_POST['preview']) || isset($_POST['download'])) &&
                        $_POST['style'] == $style_dir
                    ) {
                        $safe_style_dir = $style_dir;
                    } else {
                        if ($currentstyle == $style_dir || ($style_dir == 'chamilo' && !$currentstyle)) {
                            if (isset($_POST['style'])) {
                                $selected = Database::escape_string($_POST['style']);
                            } else {
                                $selected = $style_dir;
                            }
                        }
                    }
                    $show_name = ucwords(str_replace('_', ' ', $style_dir));

                    if ($is_style_changeable) {
                        $list_of_names[$style_dir]  = $show_name;
                    }
                    $counter++;
                }
            }
        }
        closedir($handle);
    }

    // Sort styles in alphabetical order.
    asort($list_of_names);
    $select_list = array();
    foreach ($list_of_names as $style_dir => $item) {
        $select_list[$style_dir] = $item;
    }

    $styles = &$form_change->addElement('select', 'style', get_lang('NameStylesheet'), $select_list);
    $styles->setSelected($selected);

    if ($form_change->validate()) {
        // Submit stylesheets.
        if (isset($_POST['save'])) {
            store_stylesheets();
            Display::display_normal_message(get_lang('Saved'));
        }
        if (isset($_POST['download'])) {
            $arch = api_get_path(SYS_ARCHIVE_PATH).$safe_style_dir.'.zip';
            $dir = api_get_path(SYS_CSS_PATH).'themes/'.$safe_style_dir;
            if (is_dir($dir)) {
                $zip = new PclZip($arch);
                // Remove path prefix except the style name and put file on disk
                $zip->create($dir, PCLZIP_OPT_REMOVE_PATH, substr($dir,0,-strlen($safe_style_dir)));
                //@TODO: use more generic script to download.
                $str = '<a class="btn btn-primary btn-large" href="' . api_get_path(WEB_CODE_PATH) . 'course_info/download.php?archive=' . str_replace(api_get_path(SYS_ARCHIVE_PATH), '', $arch) . '">'.get_lang('ClickHereToDownloadTheFile').'</a>';
                Display::display_normal_message($str, false);
            } else {
                Display::addFlash(Display::return_message(get_lang('FileNotFound'), 'warning'));
            }
        }
    }
    
    $logoForm = new FormValidator(
        'logo_upload',
        'post',
        'settings.php?category=Stylesheets#tabs-2'
    );
    
    $logoForm->addHtml(Display::return_message(sprintf(get_lang('TheLogoMustBeSizeXAndFormatY'), '250 x 70', 'PNG'), 'info'));
    
    $dir = api_get_path(SYS_PUBLIC_PATH).'css/themes/' . $selected . '/images/';
    $url = api_get_path(WEB_CSS_PATH).'themes/' . $selected . '/images/';
    $logoFileName = 'header-logo.png';
    $newLogoFileName = 'header-logo-custom.png';
    
    if (is_file($dir.$newLogoFileName)) {
        $logoForm->addLabel(get_lang('CurrentLogo'), '<img id="header-logo-custom" src="'. $url . $newLogoFileName .'?'. time() . '">'); 
    } else {
        $logoForm->addLabel(get_lang('CurrentLogo'), '<img id="header-logo-custom" src="'. $url . $logoFileName .'?'. time() . '">');
    }
    
    $logoForm->addFile('new_logo', get_lang('UpdateLogo'));
    $allowedFileTypes = ['png'];
    
    if (isset($_POST['logo_reset'])) {
        if (is_file($dir.$newLogoFileName)) {
            unlink($dir.$newLogoFileName);
            Display::display_normal_message(get_lang('ResetToTheOriginalLogo'));
            echo '<script>'
                . '$("#header-logo").attr("src","'.$url.$logoFileName.'");'
            . '</script>';
        }
    } elseif (isset($_POST['logo_upload'])) {
        
        $logoForm->addRule('new_logo', get_lang('InvalidExtension').' ('.implode(',', $allowedFileTypes).')', 'filetype', $allowedFileTypes);
        $logoForm->addRule('new_logo', get_lang('ThisFieldIsRequired'), 'required');
        
        if ($logoForm->validate()) {
            
            $imageInfo = getimagesize($_FILES['new_logo']['tmp_name']);
            $width = $imageInfo[0];
            $height = $imageInfo[1];
            if ($width <= 250 && $height <= 70 ) {
                if (is_file($dir.$newLogoFileName)) {
                    unlink($dir.$newLogoFileName);
                }
                
                $status = move_uploaded_file($_FILES['new_logo']['tmp_name'], $dir.$newLogoFileName);

                if ($status) {
                    Display::display_normal_message(get_lang('NewLogoUpdated'));
                    echo '<script>'
                            . '$("#header-logo").attr("src","'.$url.$newLogoFileName.'");'
                        . '</script>';
                } else {
                    Display::display_error_message('Error - '.get_lang('UplNoFileUploaded'));
                }
            } else {
                Display::display_error_message('Error - '.get_lang('InvalidImageDimensions'));
            }
        }
    }

    if ($is_style_changeable) {
        $group = [
            $form_change->addButtonSave(get_lang('SaveSettings'), 'save', true),
            $form_change->addButtonPreview(get_lang('Preview'), 'preview', true),
            $form_change->addButtonDownload(get_lang('Download'), 'download', true)
        ];

        $form_change->addGroup($group);
        
        $logoGroup = [
            $logoForm->addButtonUpload(get_lang('Upload'), 'logo_upload', true),
            $logoForm->addButtonCancel(get_lang('Reset'), 'logo_reset', true)
        ];
        
        $logoForm->addGroup($logoGroup);

        if ($show_upload_form) {
            echo '<script>
            $(function() {
                $( "#tabs" ).tabs();
            });
            </script>';
            echo Display::tabs(
                array(get_lang('Update'),get_lang('UpdateLogo'), get_lang('UploadNewStylesheet')),
                array($form_change->return_form(), $logoForm->return_form(), $form->return_form())

The method FormValidator::return_form() has been deprecated with message: use returnForm()

            );
        } else {
            $form_change->display();
        }
        
        //Little hack to update the logo image in update form when submiting
        if (isset($_POST['logo_reset'])) {
            echo '<script>'
                    . '$("#header-logo-custom").attr("src","'.$url.$logoFileName.'");'
                . '</script>';
        } elseif (isset($_POST['logo_upload']) && is_file($dir.$newLogoFileName)) {
            echo '<script>'
                    . '$("#header-logo-custom").attr("src","'.$url.$newLogoFileName.'");'
                . '</script>';
        }
    } else {
        $form_change->freeze();
    }
}