Prevent Apache 500 internal server error, truncates logs that are too…

ChromePhp.php

@@ -26,13 +26,19 @@ class ChromePhp
     /**
      * @var string
      */
-    const VERSION = '4.1.0';
+    const VERSION = '4.1.1';
 
     /**
      * @var string
      */
     const HEADER_NAME = 'X-ChromeLogger-Data';
 
+    /**
+     * @var int
+	 * This should match Apache LimitRequestFieldSize Directive
+     */
+    const HEADER_LIMIT = 8000;
+
     /**
      * @var string
      */
@@ -391,9 +397,67 @@ protected function _addRow(array $logs, $backtrace, $type)
 
     protected function _writeHeader($data)
     {
-        header(self::HEADER_NAME . ': ' . $this->_encode($data));
+        $encdata = $this->_shrinkLog($data);
+        header(self::HEADER_NAME . ': ' . $encdata);
     }
 
+	/**
+	* checks if headers will be too large. If so, it
+	* will remove notices first, then other types until
+	* the header will be small enough.
+	* @author Frank Forte <[email protected]>
+	* @var array
+	* @return string
+	*/
+	protected function _shrinkLog($data)
+    {
+		$encdata = $this->_encode($data);
+
+		if(mb_strlen($encdata) > self::HEADER_LIMIT)
+		{
+			array_unshift($data['rows'],[['!! WARNING !!! Headers too large, log truncated to prevent Apache 500 Server Error.', 'ChromePHP : '.__LINE__, self::ERROR]]);
+		}
+
+		while(mb_strlen($encdata) > self::HEADER_LIMIT)
+		{
+			$shrinking = false;
+			// first remove regular status messages from tables from start to finish
+			// try to leave behind warnings, errors
+			foreach($data['rows'] as $j => $row)
+			{
+				if(isset($row[2]) && $row[2] === 'table')
+				{
+					foreach($row[0] as $k => $ro)
+					{
+						if($data['rows'][$j][0][$k][sizeof($data['rows'][$j][0][$k]) -1][1] == 'status')
+						{
+							array_pop($data['rows'][$j][0][$k]);
+								$shrinking = true;
+								break;
+						}
+					}
+				}
+			}
+			// no status messages to remove from the table log?
+			if(!$shrinking)
+			{
+				// remove regular logs
+				if(isset($row[0][2]) && $row[0][2] !== 'error')
+				{
+					unset($data['rows']);
+					$shrinking = true;
+				}
+				// ok, if nothing else, remove debug messages from start to finish
+				else
+				{
+					array_pop($data['rows']);
+				}
+			}
+			$encdata = $this->_encode($data);
+		}
+		return $encdata;
+	}
+
     /**
      * encodes the data to be sent along with the request
      *
@@ -443,4 +507,4 @@ public function getSetting($key)
         }
         return $this->_settings[$key];
     }
-}
+}

composer.json

@@ -1,16 +1,22 @@
 {
-    "name": "ccampbell/chromephp",
+    "name": "frankforte/chromephp",
     "type": "library",
     "description": "Log variables to the Chrome console (via Chrome Logger Google Chrome extension).",
     "keywords": ["log","logging"],
-    "homepage": "http://github.com/ccampbell/chromephp",
+    "homepage": "http://github.com/frankforte/chromephp",
     "license": "Apache-2.0",
     "authors": [
         {
             "name": "Craig Campbell",
             "email": "[email protected]",
             "homepage": "http://craig.is",
             "role": "Developer"
+        },
+		{
+            "name": "Frank Forte",
+            "email": "[email protected]",
+            "homepage": "http://www.frankforte.ca",
+            "role": "Developer"
         }
     ],
     "require": {