2 files changed, 247 insertions, 0 deletions

diff --git a/application/render/PageBuilder.php b/application/render/PageBuilder.php
new file mode 100644
index 00000000..1df95bfb
--- /dev/null
+++ b/application/render/PageBuilder.php
@@ -0,0 +1,213 @@
+<?php
+
+namespace Shaarli\Render;
+
+use ApplicationUtils;
+use Exception;
+use LinkDB;
+use RainTPL;
+use Shaarli\Config\ConfigManager;
+use Shaarli\Thumbnailer;
+
+/**
+ * This class is in charge of building the final page.
+ * (This is basically a wrapper around RainTPL which pre-fills some fields.)
+ * $p = new PageBuilder();
+ * $p->assign('myfield','myvalue');
+ * $p->renderPage('mytemplate');
+ */
+class PageBuilder
+{
+    /**
+     * @var RainTPL RainTPL instance.
+     */
+    private $tpl;
+
+    /**
+     * @var ConfigManager $conf Configuration Manager instance.
+     */
+    protected $conf;
+
+    /**
+     * @var array $_SESSION
+     */
+    protected $session;
+
+    /**
+     * @var LinkDB $linkDB instance.
+     */
+    protected $linkDB;
+
+    /**
+     * @var null|string XSRF token
+     */
+    protected $token;
+
+    /**
+     * @var bool $isLoggedIn Whether the user is logged in
+     */
+    protected $isLoggedIn = false;
+
+    /**
+     * PageBuilder constructor.
+     * $tpl is initialized at false for lazy loading.
+     *
+     * @param ConfigManager $conf       Configuration Manager instance (reference).
+     * @param array         $session    $_SESSION array
+     * @param LinkDB        $linkDB     instance.
+     * @param string        $token      Session token
+     * @param bool          $isLoggedIn
+     */
+    public function __construct(&$conf, $session, $linkDB = null, $token = null, $isLoggedIn = false)
+    {
+        $this->tpl = false;
+        $this->conf = $conf;
+        $this->session = $session;
+        $this->linkDB = $linkDB;
+        $this->token = $token;
+        $this->isLoggedIn = $isLoggedIn;
+    }
+
+    /**
+     * Initialize all default tpl tags.
+     */
+    private function initialize()
+    {
+        $this->tpl = new RainTPL();
+
+        try {
+            $version = ApplicationUtils::checkUpdate(
+                SHAARLI_VERSION,
+                $this->conf->get('resource.update_check'),
+                $this->conf->get('updates.check_updates_interval'),
+                $this->conf->get('updates.check_updates'),
+                $this->isLoggedIn,
+                $this->conf->get('updates.check_updates_branch')
+            );
+            $this->tpl->assign('newVersion', escape($version));
+            $this->tpl->assign('versionError', '');
+        } catch (Exception $exc) {
+            logm($this->conf->get('resource.log'), $_SERVER['REMOTE_ADDR'], $exc->getMessage());
+            $this->tpl->assign('newVersion', '');
+            $this->tpl->assign('versionError', escape($exc->getMessage()));
+        }
+
+        $this->tpl->assign('is_logged_in', $this->isLoggedIn);
+        $this->tpl->assign('feedurl', escape(index_url($_SERVER)));
+        $searchcrits = ''; // Search criteria
+        if (!empty($_GET['searchtags'])) {
+            $searchcrits .= '&searchtags=' . urlencode($_GET['searchtags']);
+        }
+        if (!empty($_GET['searchterm'])) {
+            $searchcrits .= '&searchterm=' . urlencode($_GET['searchterm']);
+        }
+        $this->tpl->assign('searchcrits', $searchcrits);
+        $this->tpl->assign('source', index_url($_SERVER));
+        $this->tpl->assign('version', SHAARLI_VERSION);
+        $this->tpl->assign(
+            'version_hash',
+            ApplicationUtils::getVersionHash(SHAARLI_VERSION, $this->conf->get('credentials.salt'))
+        );
+        $this->tpl->assign('index_url', index_url($_SERVER));
+        $visibility = !empty($_SESSION['visibility']) ? $_SESSION['visibility'] : '';
+        $this->tpl->assign('visibility', $visibility);
+        $this->tpl->assign('untaggedonly', !empty($_SESSION['untaggedonly']));
+        $this->tpl->assign('pagetitle', $this->conf->get('general.title', 'Shaarli'));
+        if ($this->conf->exists('general.header_link')) {
+            $this->tpl->assign('titleLink', $this->conf->get('general.header_link'));
+        }
+        $this->tpl->assign('shaarlititle', $this->conf->get('general.title', 'Shaarli'));
+        $this->tpl->assign('openshaarli', $this->conf->get('security.open_shaarli', false));
+        $this->tpl->assign('showatom', $this->conf->get('feed.show_atom', true));
+        $this->tpl->assign('feed_type', $this->conf->get('feed.show_atom', true) !== false ? 'atom' : 'rss');
+        $this->tpl->assign('hide_timestamps', $this->conf->get('privacy.hide_timestamps', false));
+        $this->tpl->assign('token', $this->token);
+
+        if ($this->linkDB !== null) {
+            $this->tpl->assign('tags', $this->linkDB->linksCountPerTag());
+        }
+
+        $this->tpl->assign(
+            'thumbnails_enabled',
+            $this->conf->get('thumbnails.mode', Thumbnailer::MODE_NONE) !== Thumbnailer::MODE_NONE
+        );
+        $this->tpl->assign('thumbnails_width', $this->conf->get('thumbnails.width'));
+        $this->tpl->assign('thumbnails_height', $this->conf->get('thumbnails.height'));
+
+        if (!empty($_SESSION['warnings'])) {
+            $this->tpl->assign('global_warnings', $_SESSION['warnings']);
+            unset($_SESSION['warnings']);
+        }
+
+        // To be removed with a proper theme configuration.
+        $this->tpl->assign('conf', $this->conf);
+    }
+
+    /**
+     * The following assign() method is basically the same as RainTPL (except lazy loading)
+     *
+     * @param string $placeholder Template placeholder.
+     * @param mixed  $value       Value to assign.
+     */
+    public function assign($placeholder, $value)
+    {
+        if ($this->tpl === false) {
+            $this->initialize();
+        }
+        $this->tpl->assign($placeholder, $value);
+    }
+
+    /**
+     * Assign an array of data to the template builder.
+     *
+     * @param array $data Data to assign.
+     *
+     * @return false if invalid data.
+     */
+    public function assignAll($data)
+    {
+        if ($this->tpl === false) {
+            $this->initialize();
+        }
+
+        if (empty($data) || !is_array($data)) {
+            return false;
+        }
+
+        foreach ($data as $key => $value) {
+            $this->assign($key, $value);
+        }
+        return true;
+    }
+
+    /**
+     * Render a specific page (using a template file).
+     * e.g. $pb->renderPage('picwall');
+     *
+     * @param string $page Template filename (without extension).
+     */
+    public function renderPage($page)
+    {
+        if ($this->tpl === false) {
+            $this->initialize();
+        }
+
+        $this->tpl->draw($page);
+    }
+
+    /**
+     * Render a 404 page (uses the template : tpl/404.tpl)
+     * usage: $PAGE->render404('The link was deleted')
+     *
+     * @param string $message A message to display what is not found
+     */
+    public function render404($message = '')
+    {
+        if (empty($message)) {
+            $message = t('The page you are trying to reach does not exist or has been deleted.');
+        }
+        header($_SERVER['SERVER_PROTOCOL'] . ' ' . t('404 Not Found'));
+        $this->tpl->assign('error_message', $message);
+        $this->renderPage('404');
+    }
+}
diff --git a/application/render/ThemeUtils.php b/application/render/ThemeUtils.php
new file mode 100644
index 00000000..86096c64
--- /dev/null
+++ b/application/render/ThemeUtils.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Shaarli\Render;
+
+/**
+ * Class ThemeUtils
+ *
+ * Utility functions related to theme management.
+ *
+ * @package Shaarli
+ */
+class ThemeUtils
+{
+    /**
+     * Get a list of available themes.
+     *
+     * It will return the name of any directory present in the template folder.
+     *
+     * @param string $tplDir Templates main directory.
+     *
+     * @return array List of theme names.
+     */
+    public static function getThemes($tplDir)
+    {
+        $tplDir = rtrim($tplDir, '/');
+        $allTheme = glob($tplDir.'/*', GLOB_ONLYDIR);
+        $themes = [];
+        foreach ($allTheme as $value) {
+            $themes[] = str_replace($tplDir.'/', '', $value);
+        }
+
+        return $themes;
+    }
+}