From 06dd638946d9f0471bb9e267804eb3d0ee30365e Mon Sep 17 00:00:00 2001
From: Urban Müller
Date: Thu, 4 Oct 2007 19:14:34 +0000
Subject: eliminate alert binary

---
 it.class | 99 ++++++++++++++++++++++++++++------------------------------------
 1 file changed, 43 insertions(+), 56 deletions(-)

(limited to 'it.class')

diff --git a/it.class b/it.class
index 281853a..77b4b89 100644
--- a/it.class
+++ b/it.class
@@ -127,77 +127,64 @@ function timerlog($label = '')
  */
 function error($p = array(), $body = "", $to = "")
 {
-	if (is_array($p))
-	{
-		$title = $p['title'];
-		$body = $p['body'];
-		$to = $p['to'];
-	}
-	else
-	{
-		$title = $p;
-		$p = array();
-	}
-	$p += array('timewindow' => 25*3600, 'graceperiod' => 60, 'backtraceskip' => 0);
+	if (!is_array($p))
+		$p = array('title' => $p, 'body' => $body, 'to' => $to);
+
+	if ($_SERVER['REMOTE_ADDR'])
+		$url = ($_SERVER['HTTPS'] ? "https://" : "http://") . $_SERVER['HTTP_HOST'] .$_SERVER['REQUEST_URI'];
 
-	if (!$to)
-		$to = strtr(trim(@file_get_contents($GLOBALS['ULTRAHOME'] . "/.diffnotice")), array("\n"=>',', ' '=>''));
+	$p += array(
+		'timewindow' => 25*3600,
+		'graceperiod' => 60, 
+		'backtraceskip' => 0,
+		'to' => strtr(trim(@file_get_contents($GLOBALS['ULTRAHOME'] . "/.diffnotice")), array("\n"=>', ')),
+		'title' => "Error in $url",
+	);
 
-	if ($p['id'])
+	$toscreen = !ereg('live', $GLOBALS['ULTRASERVERTYPE']);
+	if (!$toscreen) # this error can only be sent by mail: find out if we want to suppress it
 	{
-		$stampfn = $GLOBALS['ULTRAHOME'] . "/tmp/errstamp_" . urlencode($p['id']);
-		$stampage = time() - @filemtime($stampfn);
-		$lastsentfn = "/tmp/alertdata/" . $p['id'];
+		@mkdir("/tmp/alertdata");
+		@chmod("/tmp/alertdata", 0777);		
 
-		if ($stampage >= $p['graceperiod'] && $stampage <= $p['graceperiod'] + $p['timewindow']) 
-			$sendalert = true;
+		if ($p['id'])
+		{
+			$stampfn = "/tmp/alertdata/errstamp_" . urlencode($p['id']);
+			$stampage = time() - @filemtime($stampfn);
+			$sendmail = $stampage >= $p['graceperiod'] && $stampage <= $p['graceperiod'] + $p['timewindow'];
+		}
+		else
+		{
+			$stampfn = "/tmp/alertdata/lastsent_" . getmyuid() . "." . md5($p['to']);
+			$sendmail = time() - @filemtime($stampfn) > 3600;
+		}
 
-		if ($stampage >= $p['graceperiod']) # constantly occurring errors should not suppress mail
+		if ($sendmail || $stampage > $p['graceperiod']) # mark time of sending mail or of encountering initial $p['id'] error
+		{
+			@unlink($stampfn);
 			touch($stampfn);
+		}
 	}
-	else
-	{
-		$lastsentfn = "/tmp/alertdata/" . getmyuid() . "." . $to;
-		$sendalert = true;
-	}
-
-	$toscreen = !ereg('live', $GLOBALS['ULTRASERVERTYPE']);
 
-	if ($sendalert && ($toscreen || (time() - @filemtime($lastsentfn)) > 3600))
+	if ($toscreen || $sendmail)
 	{
-		@mkdir("/tmp/alertdata");
-		@chmod("/tmp/alertdata", 0777);
-		@unlink($lastsentfn);
-		touch($lastsentfn);
-		@chmod($lastsentfn, 0666);
-
-		if ($_SERVER['REMOTE_ADDR'])
-			$url = ($_SERVER['HTTPS'] ? "https://" : "http://") . $_SERVER['HTTP_HOST'] .$_SERVER['REQUEST_URI'];
-		if (!$title)
-			$title="Error in " . trim($url);
-
-		if (!function_exists('memory_get_usage') || (memory_get_usage() < 50000000))
-			$trace = it_debug::backtrace($p['backtraceskip']);
+		$trace = it_debug::backtrace($p['backtraceskip']); # in here for performance
 
-		$body .= ($url && !$toscreen? "Url: $url\n" : "") . ($trace ? "  Trace: $trace\n" : "");
+		$body = ($body ? trim($body)."\n\n" : "") . ($url && !$toscreen? "Url: $url\n\n" : "") . ($trace ? ($sendmail?"" :"  ")."Trace: $trace\n\n" : "");
 
-		if (!$toscreen)
+		if ($sendmail) # we're mailing: send maximum info
 		{
-			$cmd = "alert -l " . escapeshellarg($to) . " 4 " . escapeshellarg($title);
+			$body .= "Locals: " . print_r($p['locals'], true) . "\n\n\$_REQUEST: ".print_r($_REQUEST, true) . "\n\$_SERVER: " . print_r($_SERVER, true) . "\n\n";
+			if ($trace) # this is only set if no excessive memory usage
+				$body .= "Stack: " . print_r(debug_backtrace(), true) . "\n\n";
 
-			EDC('exec', $cmd);
-			if (($pipe = popen($cmd, "w")))
-			{
-				$body .= "\n\nLocals" . print_r($p['locals'], true) . "\n\n\$_REQUEST: ".print_r($_REQUEST, true) . "\n\$_SERVER: " . print_r($_SERVER, true) . "\n\nStack:\n" . print_r(debug_backtrace(), true);
-				fputs($pipe, "$body\n");
-				pclose($pipe);
-			}
+			mail($p['to'], $p['title'], $body);
 		}
-		else if ($_SERVER['REMOTE_ADDR'])
-			echo "<pre>$title\n$body</pre>";
+		else if ($_SERVER['REMOTE_ADDR']) # in shell mode we rely on error_log below
+			echo "<pre>{$p['title']}\n$body</pre>";
 	}
 
-	error_log("it::error: ".$title . ": " . $trace . (EDC('verbose') ? D($p['locals']) : ""));
+	error_log("it::error: " . $p['title'] . " in " . ($trace ? $trace : $p['line']) . (EDC('verbose') ? D($p['locals']) : ""));
 }
 
 
@@ -453,6 +440,7 @@ function imageconvert($p)
  * Option text must be indented; if long and short option present, value is stored in long option
  * Options without arguments store true or false under their key
  * Options -h and --help will be handled internally by printing usage and exiting
+ * When printing, the usage will be de-indented so the first line starts in the first column
  * Two or more blanks must be in front of option explanation
  * @param $helplines Usage parsed to determine options
  * @return Associative array of options
@@ -605,7 +593,6 @@ function date($format = "", $stamp = null)
 
 	return date($formatstring, $stamp);
 }
-
 }
 
 ?>
-- 
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