From c08d50448693f0e258ad679161509f2839c78ca4 Mon Sep 17 00:00:00 2001
From: Dominique Fournier <dominique@fournier38.fr>
Date: Thu, 13 Aug 2015 12:43:56 +0000
Subject: [PATCH] logger : add the support to catch all the trigger_error
 messages logger : add the backtraceDisplay conditionnal

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@2231 bf3deb0d-5f1a-0410-827f-c0cc1f45334c
---
 logger.php | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 46 insertions(+), 6 deletions(-)

diff --git a/logger.php b/logger.php
index 4a53181..1216a1d 100644
--- a/logger.php
+++ b/logger.php
@@ -17,9 +17,9 @@ class logger
      $d->logwrite ("Super log NOTICE", $d::NOTICE); */
   // TODO : Add SQL support
   /** The method to log.
-      Can be display, file, syslog
+      Can be display, file, syslog, stderr
       Can be merged with a pipe : "display|syslog|file" or put in array */
-  public $logtype = "display";
+  public $logtype = "stderr";
   /** For logtype=file, the filename to use */
   public $logfile = FALSE;
   /** Timezone use to save the logs */
@@ -34,6 +34,8 @@ class logger
   /** Remove X entries of backtrace to see the right file generating the error
     */
   public $backTraceSkip = 0;
+  /** Display the backtrace in all the messages */
+  public $backtraceDisplay = false;
 
   /** The priorities which can be used in the priorities
   LOG_EMERG   system is unusable
@@ -53,6 +55,41 @@ class logger
                                LOG_INFO    => "INFO",
                                LOG_DEBUG   => "DEBUG");
 
+  /** Catch all the messages raised by the PHP, in trigger_error
+      Use the properties of the logger to save the logs */
+  public function catchAll ()
+  {
+    set_error_handler (array (&$this, "errorHandler"));
+  }
+
+  public function errorHandler ($errno, $errstr, $errfile, $errline)
+  {
+    if (!(error_reporting() & $errno))
+    {
+        // This error code is not included in error_reporting
+        return;
+    }
+    switch($errno)
+    {
+      case E_ERROR:             $priority = LOG_ERR; break;
+      case E_WARNING:           $priority = LOG_WARNING; break;
+      case E_PARSE:             $priority = LOG_PARSE; break;
+      case E_NOTICE:            $priority = LOG_NOTICE; break;
+      case E_CORE_ERROR:        $priority = LOG_ERR; break;
+      case E_CORE_WARNING:      $priority = LOG_WARNING; break;
+      case E_COMPILE_ERROR:     $priority = LOG_ERR; break;
+      case E_COMPILE_WARNING:   $priority = LOG_WARNING; break;
+      case E_USER_ERROR:        $priority = LOG_ERR; break;
+      case E_USER_WARNING:      $priority = LOG_WARNING; break;
+      case E_USER_NOTICE:       $priority = LOG_NOTICE; break;
+      case E_STRICT:            $priority = LOG_WARNING; break;
+      case E_RECOVERABLE_ERROR: $priority = LOG_ERR; break;
+      case E_DEPRECATED:        $priority = LOG_WARNING; break;
+      case E_USER_DEPRECATED:   $priority = LOG_WARNING; break;
+    }
+    $this->log ($priority, $errstr);
+  }
+
   /** Store a new message log in the log manager defined by $logtype
       The message can be multiple types. An array will be stored in textual form
       but it will accept only one depth.
@@ -135,6 +172,13 @@ class logger
     // Add the filename which generate the error
     $msg .= " [".basename ($back["file"]).":".$back["line"]."]";
 
+    // Display the backtrace if it is needed 
+    if ($this->backtraceDisplay)
+    {
+      $e = new Exception();
+      $msg .= "\n".($e->getTraceAsString());
+    }
+
     if (is_string ($this->logtype))
       $logsType = explode ("|", $this->logtype);
     elseif (is_array ($this->logtype))
@@ -204,14 +248,10 @@ class logger
       @param integer|null $priority Priority to use */
   private function logstderr ($message, $priority)
   {
-    if (php_sapi_name () !== "cli")
-      file_put_contents("php://stderr", "<tt>");
     ini_set ("date.timezone", $this->timezone);
     $message = date ("Y/m/d H:i:s")." [".$this->priorities[$priority]."] ".
                $message;
     file_put_contents("php://stderr", "$message");
-    if (php_sapi_name () !== "cli")
-      file_put_contents("php://stderr", "</tt><br/>");
     file_put_contents("php://stderr", "\n");
   }