<?php
/*
	FusionPBX
	Version: MPL 1.1

	The contents of this file are subject to the Mozilla Public License Version
	1.1 (the "License"); you may not use this file except in compliance with
	the License. You may obtain a copy of the License at
	http://www.mozilla.org/MPL/

	Software distributed under the License is distributed on an "AS IS" basis,
	WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
	for the specific language governing rights and limitations under the
	License.

	The Original Code is FusionPBX

	The Initial Developer of the Original Code is
	Mark J Crane <markjcrane@fusionpbx.com>
	Portions created by the Initial Developer are Copyright (C) 2008-2012
	the Initial Developer. All Rights Reserved.

	Contributor(s):
	Mark J Crane <markjcrane@fusionpbx.com>
	James Rose <james.o.rose@gmail.com>
*/
include "root.php";
require_once "resources/require.php";
require_once "resources/check_auth.php";
if (permission_exists('log_view')) {
	//access granted
}
else {
	echo "access denied";
	exit;
}

//add multi-lingual support
	require_once "app_languages.php";
	foreach($text as $key => $value) {
		$text[$key] = $value[$_SESSION['domain']['language']['code']];
	}

//define variables
	$c = 0;
	$row_style["0"] = "row_style0";
	$row_style["1"] = "row_style1";

//set a default line number value (off)
	if ($_POST['ln'] == '') { $_POST['ln'] = 0; }

//set a default ordinal (descending)
	if ($_POST['ord'] == '') { $_POST['ord'] = "asc"; }

//set a default file size
	if (strlen($_POST['fs']) == 0) { $_POST['fs'] = "32"; }

if (permission_exists('log_download')) {
	if ($_GET['a'] == "download") {
		if ($_GET['t'] == "logs") {
			$tmp = $_SESSION['switch']['log']['dir'].'/';
			$filename = 'freeswitch.log';
		}
		session_cache_limiter('public');
		$fd = fopen($tmp.$filename, "rb");
		header("Content-Type: binary/octet-stream");
		header("Content-Length: " . filesize($tmp.$filename));
		header('Content-Disposition: attachment; filename="'.$filename.'"');
		fpassthru($fd);
		exit;
	}
}

require_once "resources/header.php";

echo "<br />\n";
echo "<div align='center'>\n";

echo "<table width='100%' cellpadding='0' cellspacing='0' border='0'>\n";
echo "	<tr>\n";
echo "		<td align=\"left\" valign='middle' width='100%'>\n";
echo "			<b>".$text['label-log-viewer']."</b><br />\n";
echo "		</td>\n";
echo "		<form action=\"log_viewer.php\" method=\"POST\">\n";
echo "		<td align='right' valign='middle' nowrap>\n";
echo "			<label for='filter' style='margin-right: 30px;'>".$text['label-filter']." <input type=\"text\" class=\"formfld\" style=\"width: 150px; text-align: center;\" name=\"filter\" value=\"".$_POST['filter']."\" onclick=\"this.select();\"></label>";
echo "			<label for='ln' style='margin-right: 30px;'><input type='checkbox' name='ln' id='ln' value='1' ".(($_POST['ln'] == 1) ? 'checked' : null)."> ".$text['label-line-num']."</label>";
echo "			<label for='ord' style='margin-right: 30px;'><input type='checkbox' name='ord' id='ord' value='desc' ".(($_POST['ord'] == 'desc') ? 'checked' : null)."> ".$text['label-sort']."</label>";
echo "			Display <input type=\"text\" class=\"formfld\" style=\"width: 50px; text-align: center;\" name=\"fs\" value=\"".$_POST['fs']."\" onclick=\"this.select();\"> ".$text['label-kb']."";
echo "			<input type=\"submit\" class=\"btn\" style=\"margin-left: 30px;\" name=\"submit\" value=\"".$text['button-reload']."\">";
echo "		</td>\n";
echo "		</form>\n";
echo "		<td width='125' align='right' valign='middle' nowrap='nowrap'>\n";
if (permission_exists('log_download')) {
	echo "			<input type='button' class='btn' value='".$text['button-download']."' onclick=\"document.location.href='log_viewer.php?a=download&t=logs';\" />\n";
}
echo "		</td>\n";
echo "	</tr>\n";
echo "	<tr>\n";
echo "		<td colspan='3'>";

if (permission_exists('log_view')) {

	$MAXEL = 3; //pattern2, pattern3|color2, color3 etc...

	$user_filesize = '0';
	$default_color = 'white';
	$default_type = 'normal';
	$default_font = 'monospace';
	$background_color = 'black';
	$default_fsize = '512000';
	$log_file = $_SESSION['switch']['log']['dir']."/freeswitch.log";

	//put the color matches here...
	$arr_filter[0]['pattern'] = '[NOTICE]';
	$arr_filter[0]['color'] = 'cyan';
	$arr_filter[0]['type'] = 'normal';
	$arr_filter[0]['font'] = 'monospace';

	$arr_filter[1]['pattern'] = '[INFO]';
	$arr_filter[1]['color'] = 'chartreuse';
	$arr_filter[1]['type'] = 'normal';
	$arr_filter[1]['font'] = 'monospace';

	$arr_filter[2]['pattern'] = 'Dialplan:';
	$arr_filter[2]['color'] = 'burlywood';
	$arr_filter[2]['type'] = 'normal';
	$arr_filter[2]['font'] = 'monospace';
	$arr_filter[2]['pattern2'] = 'Regex (PASS)';
	$arr_filter[2]['color2'] = 'chartreuse';
	$arr_filter[2]['pattern3'] = 'Regex (FAIL)';
	$arr_filter[2]['color3'] = 'red';

	$arr_filter[3]['pattern'] = '[WARNING]';
	$arr_filter[3]['color'] = 'fuchsia';
	$arr_filter[3]['type'] = 'normal';
	$arr_filter[3]['font'] = 'monospace';

	$arr_filter[4]['pattern'] = '[ERR]';
	$arr_filter[4]['color'] = 'red';
	$arr_filter[4]['type'] = 'bold';
	$arr_filter[4]['font'] = 'monospace';

	$arr_filter[5]['pattern'] = '[DEBUG]';
	$arr_filter[5]['color'] = 'gold';
	$arr_filter[5]['type'] = 'bold';
	$arr_filter[5]['font'] = 'monospace';

	$file_size = filesize($log_file);

	/*
	// removed: duplicate of above
	if (isset($_POST['submit'])) {
		if (strlen($_POST['fs']) == 0) { $_POST['fs'] = "32"; }
	}
	*/

	echo "<table style=\"width: 100%\;\" width=\"100%\" border=\"0\" cellpadding=\"6\" cellspacing=\"0\">";
	echo "<tbody><tr><th colspan=\"2\" style=\"text-alight: left\;\">".$text['label-syntax']."</th></tr>";
	echo "<tr><td style=\"text-align: left;background-color: #000000;\">";

	$user_filesize = '32768';
	if (isset($_POST['submit'])) {
		if (!is_numeric($_POST['fs'])){
			//should generate log warning here...
			$user_filesize=1024 * 32;
		}
		else {
			$user_filesize = $_POST['fs'] * 1024;
		}
		if (strlen($_REQUEST['filter']) > 0){
			$uuid_filter = $_REQUEST['filter'];
			echo "<div style=\"text-align: right;color: #FFFFFF;\">".$text['description-filter']." " . $uuid_filter . "</div>";
		}
	}

	//echo "Log File Size: " . $file_size . " bytes. <br />";
	echo "<div style=\"text-align: right;color: #FFFFFF;\">".$text['label-displaying']." " . number_format($user_filesize,0,'.',',') . " of " . number_format($file_size,0,'.',',') . " ".$text['label-bytes'].". </div><br><hr>";

	$file = fopen($log_file, "r") or exit($text['error-open-file']);

	//set pointer in file
	if ($user_filesize >= '0') {
		if ($user_filesize == '0'){
			$user_filesize = $default_fsize;
		}
		if ( $file_size >= $user_filesize ){
			//set an offset on fopen
			$bytecount=$file_size-$user_filesize;
			fseek($file, $bytecount);
			//echo "opening at " . $bytecount . " bytes<br>";
		}
		else {
			if ( $file_size >= $default_fsize ){
				//set an offset on fopen
				$bytecount=$file_size-$default_fsize;
				fseek($file, $bytecount);
				echo $text['label-open-at']." " . $bytecount . " ".$text['label-bytes']."<br>";
		}
			else {
				//open the file
				$bytecount='0';
				fseek($file, 0);
				echo "<br>".$text['label-open-file']."<br>";
			}
		}
	}
	else {
		if ( $file_size >= $default_fsize ){
			//set an offset on fopen
			$bytecount=$file_size-$default_fsize;
			fseek($file, $bytecount);
			echo $text['label-open-at']." " . $bytecount . " ".$text['label-bytes']."<br>";
		}
		else {
			//open the file
			$bytecount='0';
			fseek($file, 0);
			echo "<br>".$text['label-open-file']."<br>";
		}
	}

	//start processing
	while(!feof($file))
	{
		$log_line = fgets($file);
		$byte_count++;
		$noprint = false;

		$skip_line = false;
		if (!empty($uuid_filter) ) {
			$uuid_match = strpos($log_line, $uuid_filter);
			if ($uuid_match === false) {
				$skip_line = true;
			}
			else {
				$skip_line = false;
			}
		}

		if ($skip_line === false) {
			foreach ($arr_filter as $v1) {
				$pos = strpos($log_line, $v1['pattern']);
				//echo "</br> POS is: '$pos'</br>";
				if ($pos !== false){
					//color adjustments on words in log line
					for ($i=2; $i<=$MAXEL; $i++){
						if (isset ($v1["pattern".$i])){
							$log_line = str_replace($v1["pattern".$i], "<font color=\"{$v1["color".$i]}\">{$v1["pattern".$i]}</font>", $log_line);
						}
					}
					$ary_output[] = "<font color=\"{$v1[color]}\" face=\"{$v1[font]}\">".$log_line."</font><br>";
					$noprint = true;
				}
			}

			if ($noprint !== true){
				//more firefox workaround...
				//echo "<p style=\"background-color:$background_color;color:$default_color;font-wieght:$default_type;font-family:$default_font\">";
				$ary_output[] = "<font color=\"$default_color\" face=\"$default_font\">".htmlentities($log_line)."</font><br>";
			}
		}
	}

	// output according to ordinal selected
	if ($_POST['ord'] == 'desc') {
		$ary_output = array_reverse($ary_output);
		$adj_index = 0;
	}
	else {
		$adj_index = 1;
	}
	foreach ($ary_output as $index => $line) {
		if ($line != '<font color="white" face="monospace"></font><br>') {
			if ($_POST['ln']) {
				$line_num = "<span style='font-family: courier; color: #aaa; font-size: 10px;'>".($index + $adj_index)."&nbsp;&nbsp;&nbsp;</span>";
			}
			echo $line_num." ".$line;
		}
	}

	fclose($file);
	echo "</tr></td>";
}

echo "</table>\n";
echo "</div>\n";

require_once "resources/footer.php";

?>
