Fixed log file issues on a freshly installed Friendica.

* Check to see if log file exists.
* After trying to open it, check to see if it went ok.
* So, check to see if the file size != 0 (fread error with size = 0)

1 files changed, 27 insertions, 14 deletions

diff --git a/mod/admin.php b/mod/admin.php
index c79af8d5b..028ed8624 100755
--- a/mod/admin.php
+++ b/mod/admin.php
@@ -635,23 +635,36 @@ function admin_page_logs(&$a){
 	$t = get_markup_template("admin_logs.tpl");
 
 	$f = get_config('system','logfile');
-	$size = filesize($f);
-	if($size > 5000000 || $size < 0)
-		$size = 5000000;
 
 	$data = '';
-	$fp = fopen($f,'r');
-	if($fp) {
-		$seek = fseek($fp,0-$size,SEEK_END);
-		if($seek === 0) {
-			fgets($fp); // throw away the first partial line
-			$data = escape_tags(fread($fp,$size));
-			while(! feof($fp))
-				$data .= escape_tags(fread($fp,4096));
-		}
-		fclose($fp);
-	}
 
+	if(!file_exists($f)) {
+		$data = t("Error trying to open <strong>$f</strong> log file.\r\n<br/>Check to see if file $f exist and is 
+readable.");
+	}
+	else {
+		$fp = fopen($f, 'r');
+		if(!$fp) {
+			$data = t("Couldn't open <strong>$f</strong> log file.\r\n<br/>Check to see if file $f is readable.");
+		}
+		else {
+			$fstat = fstat($fp);
+			$size = $fstat['size'];
+			if($size != 0)
+			{
+				if($size > 5000000 || $size < 0)
+					$size = 5000000;
+				$seek = fseek($fp,0-$size,SEEK_END);
+				if($seek === 0) {
+					fgets($fp); // throw away the first partial line
+					$data = escape_tags(fread($fp,$size));
+					while(! feof($fp))
+						$data .= escape_tags(fread($fp,4096));
+				}
+			}
+			fclose($fp);
+		}
+	}			
 
 	return replace_macros($t, array(
 		'$title' => t('Administration'),