generalise the site black|white allow lists, also add a channel black|white list for future use

3 files changed, 62 insertions, 25 deletions

diff --git a/include/externals.php b/include/externals.php
index 4ac9754e2..3a3a32420 100644
--- a/include/externals.php
+++ b/include/externals.php
@@ -40,19 +40,11 @@ function externals_run($argv, $argc){
 				$url = $r[0]['site_url'];
 		}
 
-		// Note: blacklisted sites must be stored in the config as an array. 
-		// No simple way to turn this into a personal config because we have no identity here.
-		// For that we probably need a variant of superblock.
-
 		$blacklisted = false;
-		$bl1 = get_config('system','blacklisted_sites');
-		if(is_array($bl1) && $bl1) {
-			foreach($bl1 as $bl) {
-				if($bl && strpos($url,$bl) !== false) {
-					$blacklisted = true;
-					break;
-				}
-			}
+
+		if(! check_siteallowed($url)) {
+			logger('blacklisted site: ' . $url);
+			$blacklisted = true;
 		}
 
 		$attempts ++;
diff --git a/include/network.php b/include/network.php
index 61948a1cf..e906fc7cb 100644
--- a/include/network.php
+++ b/include/network.php
@@ -1812,4 +1812,59 @@ function get_site_info() {
 		'hide_in_statistics' => $hide_in_statistics
 	);
 	return $data;
-}
\ No newline at end of file
+}
+
+
+
+function check_siteallowed($url) {
+
+	$retvalue = true;
+
+	$bl1 = get_config('system','whitelisted_sites');
+	if(is_array($bl1) && $bl1) {
+		foreach($bl1 as $bl) {
+			if($bl1 === '*')
+				$retvalue = true;
+			if($bl && strpos($url,$bl) !== false)
+				return true;
+		}
+	}
+	$bl1 = get_config('system','blacklisted_sites');
+	if(is_array($bl1) && $bl1) {
+		foreach($bl1 as $bl) {
+			if($bl1 === '*')
+				$retvalue = false;
+			if($bl && strpos($url,$bl) !== false) {
+				return false;
+			}
+		}
+	}
+	return $retvalue;
+}
+
+function check_channelallowed($hash) {
+
+	$retvalue = true;
+
+	$bl1 = get_config('system','whitelisted_channels');
+	if(is_array($bl1) && $bl1) {
+		foreach($bl1 as $bl) {
+			if($bl1 === '*')
+				$retvalue = true;
+			if($bl && strpos($hash,$bl) !== false)
+				return true;
+		}
+	}
+	$bl1 = get_config('system','blacklisted_channels');
+	if(is_array($bl1) && $bl1) {
+		foreach($bl1 as $bl) {
+			if($bl1 === '*')
+				$retvalue = false;
+			if($bl && strpos($hash,$bl) !== false) {
+				return false;
+			}
+		}
+	}
+	return $retvalue;
+}
+
diff --git a/include/zot.php b/include/zot.php
index e575f3d05..6764072aa 100644
--- a/include/zot.php
+++ b/include/zot.php
@@ -554,18 +554,8 @@ function zot_gethub($arr,$multiple = false) {
 
 	if($arr['guid'] && $arr['guid_sig'] && $arr['url'] && $arr['url_sig']) {
 
-		$blacklisted = false;
-		$bl1 = get_config('system','blacklisted_sites');
-		if(is_array($bl1) && $bl1) {
-			foreach($bl1 as $bl) {
-				if($bl && strpos($arr['url'],$bl) !== false) {
-					$blacklisted = true;
-					break;
-				}
-			}
-		}
-		if($blacklisted) {
-			logger('zot_gethub: blacklisted site: ' . $arr['url']);
+		if(! check_siteallowed($arr['url'])) {
+			logger('blacklisted site: ' . $arr['url']);
 			return null;
 		}