3 namespace Friendica\App;
9 use Friendica\Content\Nav;
10 use Friendica\Core\Config\Configuration;
11 use Friendica\Core\Config\PConfiguration;
12 use Friendica\Core\Hook;
13 use Friendica\Core\L10n\L10n;
14 use Friendica\Core\Renderer;
15 use Friendica\Core\Theme;
16 use Friendica\Module\Special\HTTPException as ModuleHTTPException;
17 use Friendica\Network\HTTPException;
18 use Friendica\Util\Strings;
21 * Contains the page specific environment variables for the current Page
22 * - Contains all stylesheets
23 * - Contains all footer-scripts
24 * - Contains all page specific content (header, footer, content, ...)
26 * The run() method is the single point where the page will get printed to the screen
28 class Page implements ArrayAccess
31 * @var array Contains all stylesheets, which should get loaded during page
33 private $stylesheets = [];
35 * @var array Contains all scripts, which are added to the footer at last
37 private $footerScripts = [];
39 * @var array The page content, which are showed directly
54 * @var string The basepath of the page
59 * @param string $basepath The Page basepath
61 public function __construct(string $basepath)
63 $this->basePath = $basepath;
67 * Whether a offset exists
69 * @link https://php.net/manual/en/arrayaccess.offsetexists.php
71 * @param mixed $offset <p>
72 * An offset to check for.
75 * @return boolean true on success or false on failure.
78 * The return value will be casted to boolean if non-boolean was returned.
81 public function offsetExists($offset)
83 return isset($this->page[$offset]);
89 * @link https://php.net/manual/en/arrayaccess.offsetget.php
91 * @param mixed $offset <p>
92 * The offset to retrieve.
95 * @return mixed Can return all value types.
98 public function offsetGet($offset)
100 return $this->page[$offset] ?? null;
106 * @link https://php.net/manual/en/arrayaccess.offsetset.php
108 * @param mixed $offset <p>
109 * The offset to assign the value to.
111 * @param mixed $value <p>
118 public function offsetSet($offset, $value)
120 $this->page[$offset] = $value;
126 * @link https://php.net/manual/en/arrayaccess.offsetunset.php
128 * @param mixed $offset <p>
129 * The offset to unset.
135 public function offsetUnset($offset)
137 if (isset($this->page[$offset])) {
138 unset($this->page[$offset]);
143 * Register a stylesheet file path to be included in the <head> tag of every page.
144 * Inclusion is done in App->initHead().
145 * The path can be absolute or relative to the Friendica installation base folder.
147 * @param string $path
149 * @see Page::initHead()
152 public function registerStylesheet($path)
154 if (mb_strpos($path, $this->basePath . DIRECTORY_SEPARATOR) === 0) {
155 $path = mb_substr($path, mb_strlen($this->basePath . DIRECTORY_SEPARATOR));
158 $this->stylesheets[] = trim($path, '/');
162 * Initializes Page->page['htmlhead'].
167 * - Registered stylesheets (through App->registerStylesheet())
168 * - Infinite scroll data
169 * - head.tpl template
171 * @param App $app The Friendica App instance
172 * @param Module $module The loaded Friendica module
173 * @param L10n $l10n The l10n language instance
174 * @param Configuration $config The Friendica configuration
175 * @param PConfiguration $pConfig The Friendica personal configuration (for user)
177 * @throws HTTPException\InternalServerErrorException
179 private function initHead(App $app, Module $module, L10n $l10n, Configuration $config, PConfiguration $pConfig)
181 $interval = ((local_user()) ? $pConfig->get(local_user(), 'system', 'update_interval') : 40000);
183 // If the update is 'deactivated' set it to the highest integer number (~24 days)
185 $interval = 2147483647;
188 if ($interval < 10000) {
192 // Default title: current module called
193 if (empty($this->page['title']) && $module->getName()) {
194 $this->page['title'] = ucfirst($module->getName());
197 // Prepend the sitename to the page title
198 $this->page['title'] = $config->get('config', 'sitename', '') . (!empty($this->page['title']) ? ' | ' . $this->page['title'] : '');
200 if (!empty(Renderer::$theme['stylesheet'])) {
201 $stylesheet = Renderer::$theme['stylesheet'];
203 $stylesheet = $app->getCurrentThemeStylesheetPath();
206 $this->registerStylesheet($stylesheet);
208 $shortcut_icon = $config->get('system', 'shortcut_icon');
209 if ($shortcut_icon == '') {
210 $shortcut_icon = 'images/friendica-32.png';
213 $touch_icon = $config->get('system', 'touch_icon');
214 if ($touch_icon == '') {
215 $touch_icon = 'images/friendica-128.png';
218 Hook::callAll('head', $this->page['htmlhead']);
220 $tpl = Renderer::getMarkupTemplate('head.tpl');
221 /* put the head template at the beginning of page['htmlhead']
222 * since the code added by the modules frequently depends on it
225 $this->page['htmlhead'] = Renderer::replaceMacros($tpl, [
226 '$local_user' => local_user(),
227 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
228 '$delitem' => $l10n->t('Delete this item?'),
229 '$update_interval' => $interval,
230 '$shortcut_icon' => $shortcut_icon,
231 '$touch_icon' => $touch_icon,
232 '$block_public' => intval($config->get('system', 'block_public')),
233 '$stylesheets' => array_unique($this->stylesheets),
234 ]) . $this->page['htmlhead'];
238 * Initializes Page->page['footer'].
241 * - Javascript homebase
242 * - Mobile toggle link
243 * - Registered footer scripts (through App->registerFooterScript())
244 * - footer.tpl template
246 * @param App $app The Friendica App instance
247 * @param Mode $mode The Friendica runtime mode
248 * @param L10n $l10n The l10n instance
250 * @throws HTTPException\InternalServerErrorException
252 private function initFooter(App $app, Mode $mode, L10n $l10n)
254 // If you're just visiting, let javascript take you home
255 if (!empty($_SESSION['visitor_home'])) {
256 $homebase = $_SESSION['visitor_home'];
257 } elseif (local_user()) {
258 $homebase = 'profile/' . $app->user['nickname'];
261 if (isset($homebase)) {
262 $this->page['footer'] .= '<script>var homebase="' . $homebase . '";</script>' . "\n";
266 * Add a "toggle mobile" link if we're using a mobile device
268 if ($mode->isMobile() || $mode->isTablet()) {
269 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
270 $link = 'toggle_mobile?address=' . urlencode(curPageURL());
272 $link = 'toggle_mobile?off=1&address=' . urlencode(curPageURL());
274 $this->page['footer'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate("toggle_mobile_footer.tpl"), [
275 '$toggle_link' => $link,
276 '$toggle_text' => $l10n->t('toggle mobile')
280 Hook::callAll('footer', $this->page['footer']);
282 $tpl = Renderer::getMarkupTemplate('footer.tpl');
283 $this->page['footer'] = Renderer::replaceMacros($tpl, [
284 '$footerScripts' => array_unique($this->footerScripts),
285 ]) . $this->page['footer'];
289 * Initializes Page->page['content'].
293 * - hooks for content
295 * @param Module $module The module
296 * @param Mode $mode The Friendica execution mode
298 * @throws HTTPException\InternalServerErrorException
300 private function initContent(Module $module, Mode $mode)
305 $moduleClass = $module->getClassName();
307 $arr = ['content' => $content];
308 Hook::callAll($moduleClass . '_mod_content', $arr);
309 $content = $arr['content'];
310 $arr = ['content' => call_user_func([$moduleClass, 'content'], $module->getParameters())];
311 Hook::callAll($moduleClass . '_mod_aftercontent', $arr);
312 $content .= $arr['content'];
313 } catch (HTTPException $e) {
314 $content = ModuleHTTPException::content($e);
317 // initialise content region
318 if ($mode->isNormal()) {
319 Hook::callAll('page_content_top', $this->page['content']);
322 $this->page['content'] .= $content;
326 * Register a javascript file path to be included in the <footer> tag of every page.
327 * Inclusion is done in App->initFooter().
328 * The path can be absolute or relative to the Friendica installation base folder.
330 * @param string $path
332 * @see Page::initFooter()
335 public function registerFooterScript($path)
337 $url = str_replace($this->basePath . DIRECTORY_SEPARATOR, '', $path);
339 $this->footerScripts[] = trim($url, '/');
343 * Executes the creation of the current page and prints it to the screen
345 * @param App $app The Friendica App
346 * @param BaseURL $baseURL The Friendica Base URL
347 * @param Mode $mode The current node mode
348 * @param Module $module The loaded Friendica module
349 * @param L10n $l10n The l10n language class
350 * @param Configuration $config The Configuration of this node
351 * @param PConfiguration $pconfig The personal/user configuration
353 * @throws HTTPException\InternalServerErrorException
355 public function run(App $app, BaseURL $baseURL, Mode $mode, Module $module, L10n $l10n, Configuration $config, PConfiguration $pconfig)
357 $moduleName = $module->getName();
359 /* Create the page content.
360 * Calls all hooks which are including content operations
362 * Sets the $Page->page['content'] variable
364 $this->initContent($module, $mode);
366 // Load current theme info after module has been initialized as theme could have been set in module
367 $currentTheme = $app->getCurrentTheme();
368 $theme_info_file = 'view/theme/' . $currentTheme . '/theme.php';
369 if (file_exists($theme_info_file)) {
370 require_once $theme_info_file;
373 if (function_exists(str_replace('-', '_', $currentTheme) . '_init')) {
374 $func = str_replace('-', '_', $currentTheme) . '_init';
378 /* Create the page head after setting the language
379 * and getting any auth credentials.
381 * Moved initHead() and initFooter() to after
382 * all the module functions have executed so that all
383 * theme choices made by the modules can take effect.
385 $this->initHead($app, $module, $l10n, $config, $pconfig);
387 /* Build the page ending -- this is stuff that goes right before
388 * the closing </body> tag
390 $this->initFooter($app, $mode, $l10n);
392 if (!$mode->isAjax()) {
393 Hook::callAll('page_end', $this->page['content']);
396 // Add the navigation (menu) template
397 if ($moduleName != 'install' && $moduleName != 'maintenance') {
398 $this->page['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('nav_head.tpl'), []);
399 $this->page['nav'] = Nav::build($app);
402 // Build the page - now that we have all the components
403 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
404 $doc = new DOMDocument();
406 $target = new DOMDocument();
407 $target->loadXML("<root></root>");
409 $content = mb_convert_encoding($this->page["content"], 'HTML-ENTITIES', "UTF-8");
411 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
412 @$doc->loadHTML($content);
414 $xpath = new DOMXPath($doc);
416 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
418 foreach ($list as $item) {
419 $item = $target->importNode($item, true);
421 // And then append it to the target
422 $target->documentElement->appendChild($item);
425 if ($_GET["mode"] == "raw") {
426 header("Content-type: text/html; charset=utf-8");
428 echo substr($target->saveHTML(), 6, -8);
435 $profile = $app->profile;
437 header("X-Friendica-Version: " . FRIENDICA_VERSION);
438 header("Content-type: text/html; charset=utf-8");
440 if ($config->get('system', 'hsts') && ($baseURL->getSSLPolicy() == BaseURL::SSL_POLICY_FULL)) {
441 header("Strict-Transport-Security: max-age=31536000");
444 // Some security stuff
445 header('X-Content-Type-Options: nosniff');
446 header('X-XSS-Protection: 1; mode=block');
447 header('X-Permitted-Cross-Domain-Policies: none');
448 header('X-Frame-Options: sameorigin');
450 // Things like embedded OSM maps don't work, when this is enabled
451 // header("Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; connect-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self'; img-src 'self' https: data:; media-src 'self' https:; child-src 'self' https:; object-src 'none'");
453 /* We use $_GET["mode"] for special page templates. So we will check if we have
454 * to load another page template than the default one.
455 * The page templates are located in /view/php/ or in the theme directory.
457 if (isset($_GET['mode'])) {
458 $template = Theme::getPathForFile('php/' . Strings::sanitizeFilePathItem($_GET['mode']) . '.php');
461 // If there is no page template use the default page template
462 if (empty($template)) {
463 $template = Theme::getPathForFile('php/default.php');
466 // Theme templates expect $a as an App instance
469 // Used as is in view/php/default.php
470 $lang = $l10n->getCurrentLang();
472 require_once $template;