X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=index.php;h=442173eeb84e1c5d5ee973668056e84bfb9bc302;hb=2b8c4df544f59d611ad1e8fc0dbc5fcd38bee8f7;hp=f86fbe13843802bc3d08abf125070f819be51c1e;hpb=dda51954185ef5a1801ef2b9a2b99cb796399a91;p=friendica.git

diff --git a/index.php b/index.php
index f86fbe1384..442173eeb8 100644
--- a/index.php
+++ b/index.php
@@ -1,57 +1,277 @@
 <?php
 
-require_once("boot.php");
+/**
+ *
+ * Friendica
+ *
+ */
 
-$a = new App;
+/**
+ *
+ * bootstrap the application
+ *
+ */
+
+require_once('boot.php');
 
-$debug_text = ''; // Debugging functions should never be used on production systems.
+$a = new App;
 
-// Setup the database.
+/**
+ *
+ * Load the configuration file which contains our DB credentials.
+ * Ignore errors. If the file doesn't exist or is empty, we are running in installation mode.
+ *
+ */
 
-$install = ((file_exists('.htconfig.php')) ? false : true);
+$install = ((file_exists('.htconfig.php') && filesize('.htconfig.php')) ? false : true);
 
 @include(".htconfig.php");
+
+$lang = get_language();
+	
+load_translation_table($lang);
+
+/**
+ *
+ * Try to open the database;
+ *
+ */
+
 require_once("dba.php");
-$db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
-	unset($db_host, $db_user, $db_pass, $db_data);
 
-if(! $install)
+if(! $install) {
+	$db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
+    	    unset($db_host, $db_user, $db_pass, $db_data);
+
+	/**
+	 * Load configs from db. Overwrite configs from .htconfig.php
+	 */
+
+	load_config('config');
+	load_config('system');
+
 	require_once("session.php");
+	load_hooks();
+	call_hooks('init_1');
+}
+
+
+/**
+ *
+ * Important stuff we always need to do.
+ * Initialise authentication and  date and time. 
+ * Create the HTML head for the page, even if we may not use it (xml, etc.)
+ * The order of these may be important so use caution if you think they're all
+ * intertwingled with no logical order and decide to sort it out. Some of the
+ * dependencies have changed, but at least at one time in the recent past - the 
+ * order was critical to everything working properly
+ *
+ */
 
 require_once("datetime.php");
 
-date_default_timezone_set(($default_timezone) ? $default_timezone : 'UTC');
+$a->timezone = (($default_timezone) ? $default_timezone : 'UTC');
 
-$a->init_pagehead();
+date_default_timezone_set($a->timezone);
 
 session_start();
 
+/**
+ * Language was set earlier, but we can over-ride it in the session.
+ * We have to do it here because the session was just now opened.
+ */
 
-if((x($_SESSION,'authenticated')) || (x($_POST['auth-params'])))
+if(array_key_exists('system_language',$_POST)) {
+	if(strlen($_POST['system_language']))
+		$_SESSION['language'] = $_POST['system_language'];
+	else
+		unset($_SESSION['language']);
+}
+if((x($_SESSION,'language')) && ($_SESSION['language'] !== $lang)) {
+	$lang = $_SESSION['language'];
+	load_translation_table($lang);
+}
+
+if(x($_GET,'zrl')) {
+	$_SESSION['my_url'] = $_GET['zrl'];
+	$a->query_string = preg_replace('/[\?&]zrl=(.*?)([\?&]|$)/is','',$a->query_string);
+	if(! $install) {
+		$arr = array('zrl' => $_SESSION['my_url'], 'url' => $a->cmd);
+		call_hooks('zrl_init',$arr);
+	}
+}
+
+/**
+ *
+ * For Mozilla auth manager - still needs sorting, and this might conflict with LRDD header.
+ * Apache/PHP lumps the Link: headers into one - and other services might not be able to parse it
+ * this way. There's a PHP flag to link the headers because by default this will over-write any other 
+ * link header. 
+ *
+ * What we really need to do is output the raw headers ourselves so we can keep them separate.
+ *
+ */
+ 
+// header('Link: <' . $a->get_baseurl() . '/amcd>; rel="acct-mgmt";');
+
+if((x($_SESSION,'authenticated')) || (x($_POST,'auth-params')) || ($a->module === 'login'))
 	require("auth.php");
 
+if(! x($_SESSION,'authenticated'))
+	header('X-Account-Management-Status: none');
+
+
+/*
+ * Create the page head after setting the language
+ * and getting any auth credentials
+ */
+
+$a->init_pagehead();
+
+
+
+if(! x($_SESSION,'sysmsg'))
+	$_SESSION['sysmsg'] = array();
+
+if(! x($_SESSION,'sysmsg_info'))
+	$_SESSION['sysmsg_info'] = array();
+
+/*
+ * check_config() is responsible for running update scripts. These automatically 
+ * update the DB schema whenever we push a new one out. It also checks to see if
+ * any plugins have been added or removed and reacts accordingly. 
+ */
+
+
 if($install)
 	$a->module = 'install';
 else
 	check_config($a);
 
+nav_set_selected('nothing');
+
+$arr = array('app_menu' => $a->apps);
+
+call_hooks('app_menu', $arr);
+
+$a->apps = $arr['app_menu'];
+
+/**
+ *
+ * We have already parsed the server path into $a->argc and $a->argv
+ *
+ * $a->argv[0] is our module name. We will load the file mod/{$a->argv[0]}.php
+ * and use it for handling our URL request.
+ * The module file contains a few functions that we call in various circumstances
+ * and in the following order:
+ * 
+ * "module"_init
+ * "module"_post (only called if there are $_POST variables)
+ * "module"_afterpost
+ * "module"_content - the string return of this function contains our page body
+ *
+ * Modules which emit other serialisations besides HTML (XML,JSON, etc.) should do 
+ * so within the module init and/or post functions and then invoke killme() to terminate
+ * further processing.
+ */
+
 if(strlen($a->module)) {
-	if(file_exists("mod/{$a->module}.php")) {
-		include("mod/{$a->module}.php");
+
+	/**
+	 *
+	 * We will always have a module name.
+	 * First see if we have a plugin which is masquerading as a module.
+	 *
+	 */
+
+	if(is_array($a->plugins) && in_array($a->module,$a->plugins) && file_exists("addon/{$a->module}/{$a->module}.php")) {
+		include_once("addon/{$a->module}/{$a->module}.php");
+		if(function_exists($a->module . '_module'))
+			$a->module_loaded = true;
+	}
+
+	/**
+	 * If not, next look for a 'standard' program module in the 'mod' directory
+	 */
+
+	if((! $a->module_loaded) && (file_exists("mod/{$a->module}.php"))) {
+		include_once("mod/{$a->module}.php");
 		$a->module_loaded = true;
 	}
-	else {
+
+	/**
+	 *
+	 * The URL provided does not resolve to a valid module.
+	 *
+	 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'. 
+	 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic - 
+	 * we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page
+	 * this will often succeed and eventually do the right thing.
+	 *
+	 * Otherwise we are going to emit a 404 not found.
+	 *
+	 */
+
+	if(! $a->module_loaded) {
+
+		// Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
+		if((x($_SERVER,'QUERY_STRING')) && preg_match('/{[0-9]}/',$_SERVER['QUERY_STRING']) !== 0) {
+			killme();
+		}
+
+		if((x($_SERVER,'QUERY_STRING')) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
+			logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
+			goaway($a->get_baseurl() . $_SERVER['REQUEST_URI']);
+		}
+
+		logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
 		header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . t('Not Found'));
-		notice( t('Page not found.' ) . EOL);
+		$tpl = get_markup_template("404.tpl");
+		$a->page['content'] = replace_macros($tpl, array(
+			'$message' =>  t('Page not found.' )
+		));
 	}
 }
 
+/**
+ * load current theme info
+ */
+$theme_info_file = "view/theme/".current_theme()."/theme.php";
+if (file_exists($theme_info_file)){
+	require_once($theme_info_file);
+}
+
+
+/* initialise content region */
+
+if(! x($a->page,'content'))
+	$a->page['content'] = '';
+
+if(! $install)
+	call_hooks('page_content_top',$a->page['content']);
+
+/**
+ * Call module functions
+ */
+
 if($a->module_loaded) {
 	$a->page['page_title'] = $a->module;
 	if(function_exists($a->module . '_init')) {
 		$func = $a->module . '_init';
 		$func($a);
-    	}
+	}
+
+	if(function_exists(str_replace('-','_',current_theme()) . '_init')) {
+		$func = str_replace('-','_',current_theme()) . '_init';
+		$func($a);
+	}
+//	elseif (x($a->theme_info,"extends") && file_exists("view/theme/".$a->theme_info["extends"]."/theme.php")) {
+//		require_once("view/theme/".$a->theme_info["extends"]."/theme.php");
+//		if(function_exists(str_replace('-','_',$a->theme_info["extends"]) . '_init')) {
+//			$func = str_replace('-','_',$a->theme_info["extends"]) . '_init';
+//			$func($a);
+//		}
+//	}
 
 	if(($_SERVER['REQUEST_METHOD'] === 'POST') && (! $a->error)
 		&& (function_exists($a->module . '_post'))
@@ -67,51 +287,89 @@ if($a->module_loaded) {
 
 	if((! $a->error) && (function_exists($a->module . '_content'))) {
 		$func = $a->module . '_content';
-      		$a->page['content'] .= $func($a);
+		$a->page['content'] .= $func($a);
 	}
 
 }
 
-if(stristr($_SESSION['sysmsg'], t('Permission denied'))) {
+// If you're just visiting, let javascript take you home
+
+if(x($_SESSION,'visitor_home'))
+	$homebase = $_SESSION['visitor_home'];
+elseif(local_user())
+	$homebase = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
+
+if(isset($homebase))
+	$a->page['content'] .= '<script>var homebase="' . $homebase . '" ; </script>';
+
+// now that we've been through the module content, see if the page reported
+// a permission problem and if so, a 403 response would seem to be in order.
+
+if(stristr( implode("",$_SESSION['sysmsg']), t('Permission denied'))) {
 	header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . t('Permission denied.'));
 }
 
-// report anything important happening
+/**
+ *
+ * Report anything which needs to be communicated in the notification area (before the main body)
+ *
+ */
 	
-if(x($_SESSION,'sysmsg')) {
+/*if(x($_SESSION,'sysmsg')) {
 	$a->page['content'] = "<div id=\"sysmsg\" class=\"error-message\">{$_SESSION['sysmsg']}</div>\r\n"
-		. $a->page['content'];
+		. ((x($a->page,'content')) ? $a->page['content'] : '');
+	$_SESSION['sysmsg']="";
 	unset($_SESSION['sysmsg']);
 }
+if(x($_SESSION,'sysmsg_info')) {
+	$a->page['content'] = "<div id=\"sysmsg_info\" class=\"info-message\">{$_SESSION['sysmsg_info']}</div>\r\n"
+		. ((x($a->page,'content')) ? $a->page['content'] : '');
+	$_SESSION['sysmsg_info']="";
+	unset($_SESSION['sysmsg_info']);
+}*/
+
 
-// Feel free to comment out this line on production sites.
-$a->page['content'] .= $debug_text;
+
+call_hooks('page_end', $a->page['content']);
+
+
+/**
+ *
+ * Add a place for the pause/resume Ajax indicator
+ *
+ */
 
 $a->page['content'] .=  '<div id="pause"></div>';
-// build page
 
 
-// Navigation (menu) template
-if($a->module != 'install')
-	require_once("nav.php");
+/**
+ *
+ * Add the navigation (menu) template
+ *
+ */
 
-$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array(
-	'$stylesheet' => $a->get_baseurl() . '/view/theme/'
-		. ((x($_SESSION,'theme')) ? $_SESSION['theme'] : 'default')
-		. '/style.css'
-	));
+if($a->module != 'install') {
+	nav($a);
+}
+
+/**
+ * Build the page - now that we have all the components
+ */
+
+$a->page['htmlhead'] = replace_macros($a->page['htmlhead'], array('$stylesheet' => current_theme_url()));
 
 $page    = $a->page;
 $profile = $a->profile;
-$lang    = get_config('system','language');
 
 header("Content-type: text/html; charset=utf-8");
 
-$template = "view/" . (($lang) ? $lang . "/" : "") 
-	. ((x($a->page,'template')) ? $a->page['template'] : 'default' ) 
-	. ".php";
+$template = 'view/theme/' . current_theme() . '/' 
+	. ((x($a->page,'template')) ? $a->page['template'] : 'default' ) . '.php';
 
-require_once($template);
+if(file_exists($template))
+	require_once($template);
+else
+	require_once(str_replace('theme/' . current_theme() . '/', '', $template));
 
 session_write_close();
 exit;