new option: USE_CURL_FOR_ICONS (closes #101), add some CRs to error messages

config.php-dist

@@ -131,6 +131,9 @@
 	define('CHECK_FOR_NEW_VERSION', true);
 	// Check for new versions of tt-rss when entering preferences.
 
+	define('USE_CURL_FOR_ICONS', true);
+	// Fetch favicons using CURL, useful if your PHP has disabled remote fopen()
+
 	define('CONFIG_VERSION', 4);
 	// Expected config version. Please update this option in config.php
 	// if necessary (after migrating all new options from this file).

functions.php

@@ -213,32 +213,51 @@
 		$icon_file = ICONS_DIR . "/$feed.ico";
 
 		if (!file_exists($icon_file)) {
-				
-			error_reporting(0);
-			$r = fopen($icon_url, "r");
-			error_reporting (DEFAULT_ERROR_LEVEL);
 
-			if ($r) {
-				$tmpfname = tempnam(TMP_DIRECTORY, "ttrssicon");
-			
-				$t = fopen($tmpfname, "w");
-				
-				while (!feof($r)) {
-					$buf = fread($r, 16384);
-					fwrite($t, $buf);
-				}
-				
-				fclose($r);
-				fclose($t);
+			if (USE_CURL_FOR_ICONS) {
+				//error_reporting(0);
+				$ch = curl_init($icon_url);
+				$fp = fopen($icon_file, "w");
 
-				error_reporting(0);
-				if (!rename($tmpfname, $icon_file)) {
-					unlink($tmpfname);
+				if ($fp) {
+					curl_setopt($ch, CURLOPT_FILE, $fp);
+					curl_setopt($ch, CURLOPT_FILE, $fp);
+
+					curl_exec($ch);
+					curl_close($ch);
+					fclose($fp);					
 				}
 
-				chmod($icon_file, 0644);
-				
+				//error_reporting (DEFAULT_ERROR_LEVEL);
+
+			} else {
+
+				error_reporting(0);
+				$r = fopen($icon_url, "r");
 				error_reporting (DEFAULT_ERROR_LEVEL);
+	
+				if ($r) {
+					$tmpfname = tempnam(TMP_DIRECTORY, "ttrssicon");
+				
+					$t = fopen($tmpfname, "w");
+					
+					while (!feof($r)) {
+						$buf = fread($r, 16384);
+						fwrite($t, $buf);
+					}
+					
+					fclose($r);
+					fclose($t);
+	
+					error_reporting(0);
+					if (!rename($tmpfname, $icon_file)) {
+						unlink($tmpfname);
+					}
+	
+					chmod($icon_file, 0644);
+					
+					error_reporting (DEFAULT_ERROR_LEVEL);
+				}
 
 			}	
 		}

sanity_check.php

@@ -3,7 +3,7 @@
 
 	if (!file_exists("config.php")) {
 		print "<b>Fatal Error</b>: You forgot to copy 
-		<b>config.php-dist</b> to <b>config.php</b> and edit it.";
+		<b>config.php-dist</b> to <b>config.php</b> and edit it.\n";
 		exit;
 	}
 
@@ -12,14 +12,14 @@
 	if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) {
 			print "<b>Fatal Error</b>: Your configuration file has
 			wrong version. Please copy new options from <b>config.php-dist</b> and
-			update CONFIG_VERSION directive.";
+			update CONFIG_VERSION directive.\n";
 		exit;	
 	}
 
 	if (!defined('RSS_BACKEND_TYPE')) {
 		print "<b>Fatal error</b>: RSS backend type is not defined
 			(config variable <b>RSS_BACKEND_TYPE</b>) - please check your
-			configuration file.";
+			configuration file.\n";
 		exit;
 	}
 
@@ -27,7 +27,7 @@
 		print "<b>Fatal Error</b>: You forgot to place 
 		<a href=\"http://magpierss.sourceforge.net\">MagpieRSS</a>
 		distribution in <b>magpierss/</b>
-		subdirectory of TT-RSS tree.";
+		subdirectory of TT-RSS tree.\n";
 		exit;
 	}
 
@@ -35,35 +35,41 @@
 		print "<b>Fatal Error</b>: You forgot to place 
 		<a href=\"http://simplepie.org\">SimplePie</a>
 		distribution in <b>simplepie/</b>
-		subdirectory of TT-RSS tree.";
+		subdirectory of TT-RSS tree.\n";
 		exit;
 	}
 
 	if (RSS_BACKEND_TYPE != "simplepie" && RSS_BACKEND_TYPE != "magpie") {
-		print "<b>Fatal Error</b>: Invalid RSS_BACKEND_TYPE";
+		print "<b>Fatal Error</b>: Invalid RSS_BACKEND_TYPE\n";
 		exit;
 	}
 
 	if (CONFIG_VERSION != EXPECTED_CONFIG_VERSION) {
-		return "config: your config file version is incorrect. See config.php-dist.";
+		return "config: your config file version is incorrect. See config.php-dist.\n";
 	}
 
 	if (file_exists("xml-export.php") || file_exists("xml-import.php")) {
 		print "<b>Fatal Error</b>: XML Import/Export tools (<b>xml-export.php</b>
 		and <b>xml-import.php</b>) could be used maliciously. Please remove them 
-		from your TT-RSS instance.";
+		from your TT-RSS instance.\n";
 		exit;
 	}
 
 	if (RSS_BACKEND_TYPE != "magpie") {
 		print "<b>Fatal Error</b>: RSS backends other than magpie are not
-		supported now.";
+		supported now.\n";
 		exit;
 	}
 
 	if (SINGLE_USER_MODE && DAEMON_UPDATE_LOGIN_LIMIT > 0) {
 		print "<b>Fatal Error</b>: Please set DAEMON_UPDATE_LOGIN_LIMIT
-			to 0 in single user mode.";
+			to 0 in single user mode.\n";
 		exit;
 	}
+
+	if (USE_CURL_FOR_ICONS && ! function_exists("curl_init")) {
+		print "<b>Fatal Error</b>: You have enabled USE_CURL_FOR_ICONS, but your PHP 
+			doesn't seem to support CURL functions.";
+		exit;
+	} 
 ?>