The temporary paths (temp, lock, itemcache) are now detected automatically when used.

boot.php

@@ -2160,7 +2160,7 @@ function random_digits($digits) {
 }
 
 function get_cachefile($file, $writemode = true) {
-	$cache = get_config("system","itemcache");
+	$cache = get_itemcachepath();
 
 	if ((! $cache) || (! is_dir($cache)))
 		return("");
@@ -2181,7 +2181,7 @@ function get_cachefile($file, $writemode = true) {
 
 function clear_cache($basepath = "", $path = "") {
 	if ($path == "") {
-		$basepath = get_config('system','itemcache');
+		$basepath = get_itemcachepath();
 		$path = $basepath;
 	}
 
@@ -2209,6 +2209,63 @@ function clear_cache($basepath = "", $path = "") {
 	}
 }
 
+function get_itemcachepath() {
+	// Checking, if the cache is deactivated
+	$cachetime = (int)get_config('system','itemcache_duration');
+	if ($cachetime < 0)
+		return "";
+
+	$itemcache = get_config('system','itemcache');
+	if (($itemcache != "") AND is_dir($itemcache) AND is_writable($itemcache))
+		return($itemcache);
+
+	$temppath = get_temppath();
+
+	if ($temppath != "") {
+		$itemcache = $temppath."/itemcache";
+		mkdir($itemcache);
+
+		if (is_dir($itemcache) AND is_writable($itemcache)) {
+			set_config("system", "itemcache", $itemcache);
+			return($itemcache);
+		}
+	}
+	return "";
+}
+
+function get_lockpath() {
+	$lockpath = get_config('system','lockpath');
+	if (($lockpath != "") AND is_dir($lockpath) AND is_writable($lockpath))
+		return($lockpath);
+
+	$temppath = get_temppath();
+
+	if ($temppath != "") {
+		$lockpath = $temppath."/lock";
+		mkdir($lockpath);
+
+		if (is_dir($lockpath) AND is_writable($lockpath)) {
+			set_config("system", "lockpath", $lockpath);
+			return($lockpath);
+		}
+	}
+	return "";
+}
+
+function get_temppath() {
+	$temppath = get_config("system","temppath");
+	if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath))
+		return($temppath);
+
+	$temppath = sys_get_temp_dir();
+	if (($temppath != "") AND is_dir($temppath) AND is_writable($temppath)) {
+		set_config("system", "temppath", $temppath);
+		return($temppath);
+	}
+
+	return("");
+}
+
 function set_template_engine(&$a, $engine = 'internal') {
 // This function is no longer necessary, but keep it as a wrapper to the class method
 // to avoid breaking themes again unnecessarily

include/Photo.php

@@ -764,7 +764,7 @@ function get_photo_info($url) {
 	if (is_null($data)) {
 		$img_str = fetch_url($url, true, $redirects, 4);
 
-		$tempfile = tempnam(get_config("system","temppath"), "cache");
+		$tempfile = tempnam(get_temppath(), "cache");
 		file_put_contents($tempfile, $img_str);
 		$data = getimagesize($tempfile);
 		unlink($tempfile);

include/bbcode.php

@@ -424,7 +424,7 @@ function bb_ShareAttributes($match) {
 
 	$posted = "";
 
-	$itemcache = get_config("system","itemcache");
+	$itemcache = get_itemcachepath();
 
 	// relative dates only make sense when they aren't cached
 	if ($itemcache == "") {
@@ -661,7 +661,7 @@ function bb_ShareAttributes($share, $simplehtml) {
 
 	$posted = "";
 
-	$itemcache = get_config("system","itemcache");
+	$itemcache = get_itemcachepath();
 
 	// relative dates only make sense when they aren't cached
 	if ($itemcache == "") {
@@ -949,8 +949,8 @@ function bbcode($Text,$preserve_nl = false, $tryoembed = true, $simplehtml = fal
 
 	// removing multiplicated newlines
 	if (get_config("system", "remove_multiplicated_lines")) {
-		$search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n");
+		$search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ");
-		$replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]");
+		$replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ");
 		do {
 			$oldtext = $Text;
 			$Text = str_replace($search, $replace, $Text);

include/cronhooks.php

@@ -35,7 +35,7 @@ function cronhooks_run(&$argv, &$argc){
 		}
 	}
 
-	$lockpath = get_config('system','lockpath');
+	$lockpath = get_lockpath();
 	if ($lockpath != '') {
 		$pidfile = new pidfile($lockpath, 'cronhooks');
 		if($pidfile->is_already_running()) {

include/onepoll.php

@@ -58,7 +58,7 @@ function onepoll_run(&$argv, &$argc){
 	}
 
 	// Test
-	$lockpath = get_config('system','lockpath');
+	$lockpath = get_lockpath();
 	if ($lockpath != '') {
 		$pidfile = new pidfile($lockpath, 'onepoll'.$contact_id);
 		if($pidfile->is_already_running()) {

include/poller.php

@@ -41,7 +41,7 @@ function poller_run(&$argv, &$argc){
 		}
 	}
 
-	$lockpath = get_config('system','lockpath');
+	$lockpath = get_lockpath();
 	if ($lockpath != '') {
 		$pidfile = new pidfile($lockpath, 'poller');
 		if($pidfile->is_already_running()) {

include/queue.php

@@ -84,7 +84,7 @@ function queue_run(&$argv, &$argc){
 	load_config('config');
 	load_config('system');
 
-	$lockpath = get_config('system','lockpath');
+	$lockpath = get_lockpath();
 	if ($lockpath != '') {
 		$pidfile = new pidfile($lockpath, 'queue');
 		if($pidfile->is_already_running()) {

mod/admin.php

@@ -548,12 +548,17 @@ function admin_page_site(&$a) {
 
 	/* Banner */
 	$banner = get_config('system','banner');
-	if($banner == false) 
+	if($banner == false)
 		$banner = '<a href="http://friendica.com"><img id="logo-img" src="images/friendica-32.png" alt="logo" /></a><span id="logo-text"><a href="http://friendica.com">Friendica</a></span>';
 	$banner = htmlspecialchars($banner);
 	$info = get_config('config','info');
 	$info = htmlspecialchars($info);
 
+	// Automatically create temporary paths
+	get_temppath();
+	get_lockpath();
+	get_itemcachepath();
+
 	//echo "<pre>"; var_dump($lang_choices); die("</pre>");
 
 	/* Register policy */
@@ -631,7 +636,7 @@ function admin_page_site(&$a) {
 		'$use_fulltext_engine'	=> array('use_fulltext_engine', t("Use MySQL full text engine"), get_config('system','use_fulltext_engine'), t("Activates the full text engine. Speeds up search - but can only search for four and more characters.")),
 		'$suppress_language'	=> array('suppress_language', t("Suppress Language"), get_config('system','suppress_language'), t("Suppress language information in meta information about a posting.")),
 		'$itemcache'		=> array('itemcache', t("Path to item cache"), get_config('system','itemcache'), "The item caches buffers generated bbcode and external images."),
-		'$itemcache_duration' 	=> array('itemcache_duration', t("Cache duration in seconds"), get_config('system','itemcache_duration'), t("How long should the cache files be hold? Default value is 86400 seconds (One day).")),
+		'$itemcache_duration' 	=> array('itemcache_duration', t("Cache duration in seconds"), get_config('system','itemcache_duration'), t("How long should the cache files be hold? Default value is 86400 seconds (One day). To disable the item cache, set the value to -1.")),
 		'$max_comments' 	=> array('max_comments', t("Maximum numbers of comments per post"), get_config('system','max_comments'), t("How much comments should be shown for each post? Default value is 100.")),
 		'$lockpath'		=> array('lockpath', t("Path for lock file"), get_config('system','lockpath'), "The lock file is used to avoid multiple pollers at one time. Only define a folder here."),
 		'$temppath'		=> array('temppath', t("Temp path"), get_config('system','temppath'), "If you have a restricted system where the webserver can't access the system temp path, enter another path here."),