index.php

<?php

require_once __DIR__ . '/../../lib/base.php';
require_once('apps/chooser/appinfo/apache_note_user.php');


if(empty($_GET['site']) && empty($_GET['user'])){
	header("HTTP/1.1 404 Not Found");
	exit;
}

\OCP\Util::writeLog('files_picocms', 'Firing up '.$_SERVER['QUERY_STRING'], \OCP\Util::WARN);

// If redirected by mod_rewrite with site_name set, serve the site	
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Parser.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Dumper.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Unescaper.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Escaper.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Inline.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Yaml.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Exception/ExceptionInterface.php');
require_once('apps/files_picocms/3rdparty/symfony/component/yaml/Exception/RuntimeException.php');
foreach(glob(__DIR__ . "/3rdparty/symfony/component/yaml/Exception/*.php") as $filename){
	require_once($filename);
}

require_once('apps/files_picocms/3rdparty/Parsedown.php');
require_once('apps/files_picocms/3rdparty/ParsedownExtra.php');

foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/*Interface.php") as $filename){
	require_once($filename);
}

require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Autoloader.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Loader/Filesystem.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Environment.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Cache/Null.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Extension.php');
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/Extension/*.php") as $filename){
	require_once($filename);
}
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/SimpleFilter.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Lexer.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParserBroker.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/SimpleFunction.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/SimpleTest.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Node.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/BaseNodeVisitor.php');

require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/For.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/If.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Extends.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Include.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Block.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Use.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Filter.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Macro.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Import.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/From.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Set.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Spaceless.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Flush.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/TokenParser/Do.php');
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/TokenParser/*.php") as $filename){
	require_once($filename);
}
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Node/Include.php');
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/Node/*.php") as $filename){
	require_once($filename);
}
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Node/Expression/Name.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Node/Expression/Binary.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Node/Expression/Call.php');
require_once('apps/files_picocms/3rdparty/Twig/lib/Twig/Node/Expression/Filter.php');
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/Node/*/*.php") as $filename){
	require_once($filename);
}
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/Node/*/*/*.php") as $filename){
	require_once($filename);
}

foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/NodeVisitor/*.php") as $filename){
	require_once($filename);
}
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/*.php") as $filename){
	require_once($filename);
}
foreach(glob(__DIR__ . "/3rdparty/Twig/lib/Twig/Error/*.php") as $filename){
	require_once($filename);
}

require_once('apps/files_picocms/3rdparty/Pico/lib/Pico.php');
require_once('apps/files_picocms/3rdparty/Pico/lib/PicoPluginInterface.php');
require_once('apps/files_picocms/3rdparty/Pico/lib/AbstractPicoPlugin.php');
require_once('apps/files_picocms/3rdparty/Pico/lib/PicoTwigExtension.php');

require_once('apps/files_picocms/lib/OC_Pico.php');

\OCP\Util::writeLog('files_picocms', 'QUERY_STRING: '.$_SERVER['QUERY_STRING'].' --> '.$_GET['path'], \OC_Log::WARN);

if(!empty($_GET['path'])){
	$_SERVER['QUERY_STRING'] = $_GET['path'];
}

$config = array();

if(!empty($_GET['user'])){
	// user is actually the email address. Look up the actual uid
	$user = OCA\FilesPicoCMS\Lib::dbGetUseridFromEmail($_GET['user']);
	if(!OCA\FilesPicoCMS\Lib::getServePublicUrl($user)){
		\OCP\Util::writeLog('files_picocms', 'ERROR: not serving public for '.$user, \OC_Log::WARN);
		header("HTTP/1.1 404 Not Found");
		exit;
	}
	$siteInfo = array('uid'=>$user, 'path'=>'/public', 'site'=>'Public page of '.\OC_User::getDisplayName($user));
	$config['base_url'] = "https://".$_SERVER['HTTP_HOST'].\OC::$WEBROOT."/users/".$user;
	$config['base_uri'] = \OC::$WEBROOT."/users/".$user;
}
elseif(!empty($_GET['site'])){
	$siteInfo = OCA\FilesPicoCMS\Lib::lookupSiteInfo($_GET['site']);
	$config['base_url'] = "https://".$_SERVER['HTTP_HOST'].\OC::$WEBROOT."/sites/".$siteInfo['site'];
	$config['base_uri'] = \OC::$WEBROOT."/sites/".$siteInfo['site'];
}

\OCP\Util::writeLog('files_picocms', 'Site INFO: '.\OCA\FilesSharding\Lib::getServerForUser($siteInfo['uid']).
		'-->'.serialize($siteInfo), \OC_Log::WARN);

if(\OCP\App::isEnabled('files_sharding') && !empty($siteInfo['uid']) &&
		!\OCA\FilesSharding\Lib::onServerForUser($siteInfo['uid'])){
	$userServerUrl = \OCA\FilesSharding\Lib::getServerForUser($siteInfo['uid']);
	$master = \OCA\FilesSharding\Lib::getMasterHostName();
	if(!empty($userServerUrl) && substr($_SERVER['HTTP_HOST'], -strlen($master))==$master){
		// Only redirect urls of the form https://siloX.masterdomain/sites/mysite
		// i.e. don't redirect custom sites with external dns
		$redirect_full = $userServerUrl.$_SERVER['REQUEST_URI'];
		header("HTTP/1.1 307 Temporary Redirect");
		header('Location: ' . $redirect_full);
		exit();
	}
}

$sitePath = $siteInfo['uid'].
	(empty($siteInfo['gid'])?'/files':'/user_group_admin/'.$siteInfo['gid']).
		$siteInfo['path'];
$dataDir = \OC_Config::getValue("datadirectory", \OC::$SERVERROOT . "/data");

if(empty($dataDir)){
	exit;
}

$config['group'] = empty($siteInfo['gid'])?'':$siteInfo['gid'];
$config['user'] = $siteInfo['uid'];
$config['rewrite_url'] = true;

$config['site_title'] = $siteInfo['site'];
/*$config['master_url'] = $_SERVER['HTTP_HOST'];

if(\OCP\App::isEnabled('files_sharding') ){
	$config['master_url'] = \OCA\FilesSharding\Lib::getMasterURL();
}*/

if(empty($_GET['path']) &&
		!file_exists($dataDir.'/'.$sitePath.'/content/index.md') &&
		!file_exists($dataDir.'/'.$sitePath.'/index.md') &&
		(file_exists($dataDir.'/'.$sitePath.'/content/index.html') ||
		file_exists($dataDir.'/'.$sitePath.'/index.html'))){
			$_GET['path'] = 'index.html';
}

$extension = empty($_GET['path'])?'':pathinfo($_GET['path'], PATHINFO_EXTENSION);
$filePath = $dataDir.'/'.$sitePath.'/'.$_GET['path'];
$serveRaw = false;
if(!empty($extension) && ($extension=='png'||$extension=='jpg'||$extension=='jpeg'||$extension=='gif')){
	header("Content-type: image/".$extension);
}
elseif(!empty($extension) && ($extension=='svg')){
	header("Content-type: image/svg+xml");
}
elseif($extension!=='md' && basename($_GET['path'])=="feed"){
	header("Content-type: application/rss+xml");
}
elseif(!empty($extension) && $extension=='nb'){
	header("Content-type: application/vnd.wolfram.mathematica");
}
elseif($extension!=='md' && (basename($_GET['path'])=="feed" || basename($_GET['path'])=="rss")){
	header("Content-type: application/rss+xml");
}
elseif(!empty($extension) && ($extension!='md') && basename(dirname($_GET['path']))!="search" ||
		!empty($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'letsencrypt')!==false){
	if(!file_exists($filePath)){
		$filePath = $dataDir.'/'.$sitePath.'/content/'.$_GET['path'];
	}
	if($extension=='pdf'){
		header("Content-type: application/".$extension);
	}
	elseif($extension=='html'){
		header("Content-type: text/html");
	}
	elseif(!empty($filePath) && file_exists($filePath)){
		//$mimetype = \OC_Helper::getFileNameMimeType($filePath);
		if($extension=='js'){
			$mimetype = 'text/javascript';
		}
		elseif($extension=='css'){
			$mimetype = 'text/css';
		}
		$mimetype = empty($mimetype)?mime_content_type($filePath):$mimetype;
		if($mimetype!='directory'){
			header("Content-type: $mimetype");
		}
	}
	if((empty($mimetype) || $mimetype!='directory') && file_exists($filePath)){
		$serveRaw = true;
	}
}

if(is_dir($dataDir.'/'.$sitePath.'/themes')){
	$themesDir = $dataDir.'/'.$sitePath.'/themes/';
	//$config['themes_url'] = "https://".$_SERVER['HTTP_HOST'].\OC::$WEBROOT .
	//	"/sites/".$_GET['site']."/themes";
	if(isset($_GET['path']) && strpos($_GET['path'], 'themes/')===0){
		\OCP\Util::writeLog('files_picocms', 'Serving '.$dataDir.'/'.$sitePath.'/'.$_GET['path'], \OC_Log::WARN);
		if(!empty($extension)){
			if($extension=='js'){
				header("Content-type: application/javascript");
			}
			else{
				header("Content-type: text/".$extension);
			}
		}
		echo file_get_contents($dataDir.'/'.$sitePath.'/'.$_GET['path']);
		exit;
	}
}
elseif(is_dir($dataDir.'/'.$sitePath)){
	$themesDir = __DIR__ . '/lib/samplesite/themes/';
	$config['themes_url'] = "https://".$_SERVER['HTTP_HOST'].\OC::$WEBROOT .
	"/apps/files_picocms/lib/samplesite/themes";
}
else{
	\OCP\Util::writeLog('files_picocms', "Site does not exist. ".$dataDir.'::'.$sitePath, \OC_Log::ERROR);
	exit;
}

\OCP\Util::writeLog('files_picocms', 'Themes dir: '.$themesDir, \OC_Log::WARN);

if(empty($sitePath) ||
		!file_exists($dataDir.'/'.$sitePath) ){
	$config['content_dir'] = __DIR__ . '/lib/samplesite/content';
}
elseif(file_exists($dataDir.'/'.$sitePath.'/content') && is_dir($dataDir.'/'.$sitePath.'/content')){
	$config['content_dir'] = $dataDir.'/'.$sitePath.'/content';
}
else{
	$config['content_dir'] = $dataDir.'/'.$sitePath;
}

// requesttoken is needed to get avatars
$config['requesttoken'] = \OC::$session->get('requesttoken');
$user_id = \OCP\User::getUser();
if(empty($config['requesttoken']) && \OCP\App::isEnabled('files_sharding') && (empty($user_id) ||
		!\OCA\FilesSharding\Lib::onServerForUser($user_id)) &&
		!\OCA\FilesSharding\Lib::isMaster()){
	$instanceId = \OC_Config::getValue('instanceid', null);
	if(!empty($_COOKIE[$instanceId])){
		\OCP\Util::writeLog('files_picocms', 'Getting session from master '.$_COOKIE[$instanceId], \OC_Log::WARN);
		$session = \OCA\FilesSharding\Lib::getUserSession($_COOKIE[$instanceId], false);
		\OC_Log::write('files_sharding', 'got session '.serialize($session), \OC_Log::WARN);
		$config['requesttoken'] = $session['requesttoken'];
	}
}

// This is for the deic-blog theme
$config['pages_order_by'] = 'date';
//$config['pages_order'] = 'asc';
$config['pagination'] = -1;
$config['pagination_limit'] = 10;
$config['toc_top_txt'] = '';

\OCP\Util::writeLog('files_picocms', 'Content dir: '.$config['content_dir'].'. Raw: '.$serveRaw, \OC_Log::WARN);

// instantiate Pico
$pico = new Pico(
		__DIR__ . '/3rdparty/Pico',  // root dir
		'config/',  // config dir
		'plugins/',  // plugins dir
		$themesDir,  // themes dir
		$siteInfo['uid'] // site owner
);

if($serveRaw){
	// If we're serving a plain html site and there's an index.html present at the root, just go ahead
	if(($extension=="html" || $extension=="css") && file_exists($config['content_dir'].'/index.html')){
		echo file_get_contents($filePath);
	}
	else{
		// Check permissions - minimalistic pico instantiation - from 3rdparty/Pico/lib/Pico.php
		// If we're serving a raw file, check if there's an index.md in the same directory, which we can access.
		// If not, just fail.
		//$pico->requestFile = $filePath;
		$pico->requestFile = dirname($filePath).'/index.md';
		$pico->rawContent = $pico->loadFileContent($pico->requestFile);
		\OCP\Util::writeLog('files_picocms', 'Serving raw: '.$pico->requestFile." : ".$pico->rawContent, \OC_Log::WARN);
		$headers = $pico->getMetaHeaders();
		$pico->meta = $pico->parseFileMeta($pico->rawContent, $headers);
		if(empty($pico->meta['access'])){
			$pico->meta['access'] = 'private';
		}
		if(strpos($filePath, $themesDir)!==0 && // Theme files we don't check
				!$pico->checkReadPermission($pico->requestFile, $pico->meta['access'],
				$config['user'], $config['group'])){
					\OCP\Util::writeLog('files_picocms', 'Not allowed '.$pico->requestFile.':'.$pico->meta['access'].':'.$pico->rawContent, \OC_Log::WARN);
					header("HTTP/1.1 403 Forbidden");
					exit;
		}

		\OCP\Util::writeLog('files_picocms', 'Serving '.$mimetype.' : '.$_SERVER['HTTP_USER_AGENT'].'-->'.$filePath, \OC_Log::WARN);

		if($mimetype=="video/quicktime" /*&&
		(stripos($_SERVER['HTTP_USER_AGENT'],"AppleWebKit") || stripos($_SERVER['HTTP_USER_AGENT'],"iPhone"))*/){
		\OCA\FilesSharding\Lib::rangeServe($filePath, $mimetype);
		}
		else{
			echo file_get_contents($filePath);
		}
	}
	exit;
}

// override configuration?
$pico->setConfig($config);
$pico->ocOwner = $siteInfo['uid'];

// run application
echo $pico->run();