Files
web/scripts/pi-hole/php/tailLog.php
2022-10-16 13:26:23 -03:00

69 lines
2.0 KiB
PHP

<?php
/* Pi-hole: A black hole for Internet advertisements
* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
* Network-wide ad blocking via your own hardware.
*
* This file is copyright under the latest version of the EUPL.
* Please see LICENSE file for your rights under this license.
*/
require 'password.php';
if (!$auth) {
exit('Not authorized');
}
function formatLine($line)
{
$txt = preg_replace('/ dnsmasq\\[[0-9]*\\]/', '', htmlspecialchars($line));
if (strpos($line, 'blacklisted') || strpos($line, 'gravity blocked')) {
$txt = '<b class="log-red">'.$txt.'</b>';
} elseif (strpos($line, 'query[A') || strpos($line, 'query[DHCP')) {
$txt = '<b>'.$txt.'</b>';
} else {
$txt = '<span class="text-muted">'.$txt.'</span>';
}
return $txt;
}
// Not using SplFileObject here, since direct
// usage of f-streams will be much faster for
// files as large as the pihole.log
if (isset($_GET['FTL'])) {
$file = fopen('/var/log/pihole/FTL.log', 'r');
} else {
$file = fopen('/var/log/pihole/pihole.log', 'r');
}
if (!$file) {
exit(json_encode(array('offset' => 0, 'lines' => array("Failed to open log file. Check permissions!\n"))));
}
if (isset($_GET['offset'])) {
$offset = intval($_GET['offset']);
if ($offset > 0) {
// If offset is grater then current file end it means the file was truncated (log rotation)
fseek($file, 0, SEEK_END);
if ($offset > ftell($file)) {
$offset = 0;
}
// Seeks on the file pointer where we want to continue reading is known
fseek($file, $offset);
$lines = array();
while (!feof($file)) {
array_push($lines, formatLine(fgets($file)));
}
exit(json_encode(array('offset' => ftell($file), 'lines' => $lines)));
}
}
// Locate the current position of the file read/write pointer
fseek($file, -1, SEEK_END);
// Add one to skip the very last "\n" in the log file
exit(json_encode(array('offset' => ftell($file) + 1)));