Filesystem

Change config file

Change log

codes/change-log.php:

// sed - stream editor
<pre>
<?php
$substitution = "sed -i -r -e 's/icmp_seq=/icmp_sequence=/g' ping.log";

shell_exec($substitution);

echo file_get_contents('ping.log');
?>
</pre>

http://localhost:8080/filesystem/codes/change-log.php:

$ curl -i http://localhost:8080/filesystem/codes/change-log.php
HTTP/1.1 200 OK
Server: Apache/2.4.38 (Debian)
X-Powered-By: PHP/7.3.12
Vary: Accept-Encoding
Content-Length: 1144
Content-Type: text/html; charset=UTF-8


>>>Tue, 03 Dec 2019 11:46:09 +0000
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_sequence=1 ttl=37 time=65.8 ms

--- 8.8.8.8 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 65.838/65.838/65.838/0.000 ms

>>>Tue, 03 Dec 2019 13:23:26 +0000
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_sequence=1 ttl=37 time=66.7 ms

--- 8.8.8.8 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 66.715/66.715/66.715/0.000 ms

Creating log

codes/ping-log.php:

<pre>
<?php
  // get host
  $host = $_GET['host'] ?? null;

  // shell_exec -> string
  $command = "ping -c1 {$host}";
  $ping = shell_exec($command);

  $log = file_get_contents('ping.log');

  // store json
  $time = date('r');
  file_put_contents('ping.log', "${log}\n>>>${time}\n${ping}");

  echo file_get_contents('ping.log');
?>
</pre>

http://localhost:8080/filesystem/codes/ping-log.php?host=8.8.8.8

$ curl -i http://localhost:8080/filesystem/codes/ping-log.php?host=8.8.8.8
HTTP/1.1 200 OK
Server: Apache/2.4.38 (Debian)
X-Powered-By: PHP/7.3.12
Vary: Accept-Encoding
Content-Length: 1136
Content-Type: text/html; charset=UTF-8

<pre>

>>>Tue, 03 Dec 2019 11:46:09 +0000
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=37 time=65.8 ms

--- 8.8.8.8 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 65.838/65.838/65.838/0.000 ms

>>>Tue, 03 Dec 2019 13:23:26 +0000
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
64 bytes from 8.8.8.8: icmp_seq=1 ttl=37 time=66.7 ms

--- 8.8.8.8 ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 66.715/66.715/66.715/0.000 ms
</pre>

Reference