From 616306ecc633c5d9cb184f918f66c22ccfa60189 Mon Sep 17 00:00:00 2001
From: Benjamin Sonntag <benjamin@octopuce.fr>
Date: Wed, 11 Feb 2015 11:28:15 +0100
Subject: [PATCH] adding tail log view + order by DATE last files before in
 logs

---
 bureau/admin/logs_list.php               |  6 +-
 bureau/admin/logs_tail.php               | 98 ++++++++++++++++++++++++
 bureau/class/m_log.php                   | 25 +++++-
 etc/alternc/templates/apache2/vhost.conf |  5 ++
 4 files changed, 129 insertions(+), 5 deletions(-)
 create mode 100644 bureau/admin/logs_tail.php

diff --git a/bureau/admin/logs_list.php b/bureau/admin/logs_list.php
index 1a94ccd9..ab7ffa1b 100644
--- a/bureau/admin/logs_list.php
+++ b/bureau/admin/logs_list.php
@@ -62,7 +62,11 @@ while (list($key,$val)=each($list)){
   <td><?php echo $v['name']; ?></td>  
   <td><?php echo $v['creation_date']; ?></td>  
   <td><?php echo format_size($v['filesize']); ?></td>  
-  <td><?php echo "<a href=\"".$v['downlink']."\">"._("Download")."</a>";?></td>
+  <td><?php echo "<a href=\"logs_download.php?file=".$v['downlink']."\">"._("Download")."</a>";
+    if ((time()-14400)<$v['mtime']) {
+      echo " &nbsp; <a href=\"logs_tail.php?file=".$v['downlink']."\">"._("Follow")."</a>";
+    }
+?></td>
   </tr>
 <?php
   } //foreach
diff --git a/bureau/admin/logs_tail.php b/bureau/admin/logs_tail.php
new file mode 100644
index 00000000..05bbe5e4
--- /dev/null
+++ b/bureau/admin/logs_tail.php
@@ -0,0 +1,98 @@
+<?php
+/*
+ $Id: logs_download.php,v 1.2 2004/09/06 18:14:36 anonymous Exp $
+ ----------------------------------------------------------------------
+ AlternC - Web Hosting System
+ Copyright (C) 2002 by the AlternC Development Team.
+ http://alternc.org/
+ ----------------------------------------------------------------------
+ Based on:
+ Valentin Lacambre's web hosting softwares: http://altern.org/
+ ----------------------------------------------------------------------
+ LICENSE
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License (GPL)
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ To read the license please visit http://www.gnu.org/copyleft/gpl.html
+ ----------------------------------------------------------------------
+ Original Author of file: Sonntag Benjamin
+ Purpose of file: Return the current folder in a compressed file
+ ----------------------------------------------------------------------
+*/
+require_once("../class/config.php");
+
+$fields = array (
+        "file"     => array ("request", "string", ""),
+        "autoreload"     => array ("request", "integer", "1"),
+        "lines"     => array ("request", "integer", "20"),
+);
+getFields($fields);
+
+if (empty($file)) {
+$error="";
+}
+
+include_once("head.php");
+
+$string=$log->tail($file,$lines);
+if (!$string) {
+  $file=_("unknown");
+}
+?>
+<h3><?php __("Follow a recent log"); ?></h3>
+<p><?php printf(_("Please find below the last lines of file <b>%s</b>"),$file); ?></p>
+<form method="get" action="logs_tail.php" name="update" id="update">
+  <input type="hidden" name="file" value="<?php echo $file; ?>" />
+  <input type="hidden" name="autoreload" value="<?php echo $autoreload; ?>" />
+<?php if ($autoreload) {
+?>
+<input type="button" class="inb" name="autoreload" value="<?php __("Stop Auto Reload"); ?>" onclick="document.location='logs_tail.php?file=<?php echo $file; ?>&autoreload=0'"/>
+<?php
+} else {
+?>
+<input type="button" class="inb" name="autoreload" value="<?php __("Auto Reload"); ?>" onclick="document.location='logs_tail.php?file=<?php echo $file; ?>'"/>
+<?php
+} ?>
+<select id="lines" name="lines" onchange="document.forms['update'].submit()">
+  <?php
+  $alines=array(10=>10, 20=>20, 30=>30, 50=>50, 100=>100, 200=>200, 500=>500, 1000=>1000, 5000=>5000);
+eoption($alines,$lines);
+?>
+</select> <?php __("Last lines shown"); ?>  
+&nbsp;
+<?php echo "<a class=\"inb\" href=\"logs_download.php?file=".$file."\">"._("Download")."</a>"; ?>
+<a class="inb" href="logs_list.php" ><?php __("Back to the logs list"); ?></a> 
+<hr id="topbar"/>
+<br />
+<?php
+if (isset($error) && $error) {
+  echo "<p class=\"alert alert-danger\">$error</p>";
+}
+
+
+?>
+<pre style="    white-space: pre-wrap;       /* CSS 3 */
+    white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
+    white-space: -pre-wrap;      /* Opera 4-6 */
+    white-space: -o-pre-wrap;    /* Opera 7 */
+    word-wrap: break-word;       /* Internet Explorer 5.5+ */" >
+<?php echo $string; ?>
+</pre>
+<?php
+  if ($autoreload) {
+?>
+<script type="text/javascript">
+window.setTimeout("document.location=document.location",5000);
+</script>
+<?php
+  }
+require_once("foot.php");
+?>
diff --git a/bureau/class/m_log.php b/bureau/class/m_log.php
index a4b5dafa..6c2bedaa 100644
--- a/bureau/class/m_log.php
+++ b/bureau/class/m_log.php
@@ -38,12 +38,13 @@ class m_log {
     $c=array();
     foreach( glob("${dir}/*log*") as $absfile) {
         $c[]=array("name"=>basename($absfile), 
-                   "creation_date"=>date("F d Y H:i:s.", filectime($absfile)),
+                   "creation_date"=>date("F d Y H:i:s", filectime($absfile)),
+		   "mtime" => filemtime($absfile),
                    "filesize"=>filesize($absfile),
-                   "downlink"=>"logs_download.php?file=".urlencode(basename($absfile)),
+                   "downlink"=>urlencode(basename($absfile)),
                   );
     }
-    usort($c,"m_log::compare_logname");
+    usort($c,"m_log::compare_logtime");
     return $c;
 
   }//list_logs
@@ -53,6 +54,11 @@ class m_log {
     return strcmp($a['name'],$b['name']);
   }
 
+  // Used by list_logs_directory to sort
+  private function compare_logtime($a, $b) {
+    return $b['mtime']-$a['mtime'];
+  }
+
 
   function hook_menu() {
     $obj = array(
@@ -91,7 +97,7 @@ class m_log {
   function download_link($file){
     global $err,$mem;
     $err->log("log","download_link");
-    header("Content-Disposition: attachment; filename=".$file); 
+    header("Content-Disposition: attachment; filename=".$file.""); 
     header("Content-Type: application/force-download");
     header("Content-Transfer-Encoding: binary");
     $f=$this->get_logs_directory();
@@ -100,6 +106,17 @@ class m_log {
     readfile($ff);
   }
 
+  function tail($file,$lines=20) {
+    global $err,$mem;
+    $err->log("log","tail");
+    $lines=intval($lines); if ($lines<=0) $lines=20;
+    $f=$this->get_logs_directory();
+    $ff=$f['dir']."/".basename($file);
+    unset($out);
+    exec("tail -".$lines." ".escapeshellarg($ff),$out);
+    return implode("\n",$out);
+  }
+
 
 } // end class
 
diff --git a/etc/alternc/templates/apache2/vhost.conf b/etc/alternc/templates/apache2/vhost.conf
index 9c78d037..77f5e038 100644
--- a/etc/alternc/templates/apache2/vhost.conf
+++ b/etc/alternc/templates/apache2/vhost.conf
@@ -13,5 +13,10 @@
     AllowOverride AuthConfig FileInfo Limit Options Indexes
   </Directory>
 
+# If you want to log the errors also in /var/log/alternc/sites/ 
+# WARNING: this WILL FORK a vlogger for EACH VHOST havingg this !!! the load on the machine may be high 
+# on hosting with many vhosts. as a consequence, this is disabled by default
+#  ErrorLog "|| /usr/sbin/vlogger -e -u alterncpanel -g alterncpanel -s error.log -t \"error-%Y%m%d.log\" /var/log/alternc/sites/%%UID%%-%%LOGIN%%/"
+
 </VirtualHost>