<?php
/**
* @file format_disk.php
* @brief Disk formatting back end for Elphel393 series camera
* @copyright Copyright (C) 2017 Elphel Inc.
* @author Mikhail Karpenko <mikhail@elphel.com>
*
* @par <b>License</b>:
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
$parted_script = "format_disk.py";
function get_disks_list()
{
global $parted_script;
exec($parted_script . " --list", $output, $ret_val);
return array("ret_val" => $ret_val, "disks" => $output);
}
function table_row($index, $disk_path, $disk_size, $sys_size, $status = "")
{
echo "<tr id='disk_row_" . $index . "'>" .
"<td id='path_cell_" . $index . "'>" . $disk_path . "</td>" .
"<td>" . $disk_size . "</td>" .
"<td>" . $sys_size . "</td>" .
"<td id='status_cell_". $index . "'>" . $status . "</td>" .
"</tr>";
}
function table_row_err($msg)
{
echo "<tr>" . "<td colspan='4'>" . $msg . "</td>" . "</tr>";
}
function table_body($disks)
{
global $parted_script;
$ret_val = $disks["ret_val"];
$num = count($disks["disks"]);
if ($ret_val == 0 && $num > 0) {
for ($i = 0; $i < $num; $i++) {
$data = explode(":", $disks["disks"][$i]);
table_row($i, $data[0], $data[1], $data[2]);
}
} else if ($ret_val == 0 && $num == 0) {
exec($parted_script . " --partitions", $output, $ret);
if ($ret == 0) {
$msg = "Disk is already partitioned: <ul>";
foreach ($output as $line) {
$plist = explode(':', $line);
foreach ($plist as $p) {
$msg = $msg . "<li>" . $p . "</li>";
}
}
$msg = $msg . "</ul>";
$partition = substr($plist[0], 0, strpos($plist[0], '(') - 1);
$disk = substr($partition, 0, -1);
table_row(0, $disk, "", "", $msg);
} else {
$msg = "No disks suitable for partitioning";
table_row_err($msg);
}
} else {
table_row_err($disks["disks"][0]);
}
}
function btn_class($inactive)
{
$class = "btn btn-danger";
if ($inactive)
echo $class . " disabled";
else
echo $class;
}
/* process commands */
if (isset($_GET["cmd"]))
$cmd = $_GET["cmd"];
else
$cmd = "no_command";
if ($cmd == "format") {
if (isset($_GET["disk_path"])) {
if (isset($_GET["force"]))
$force = ' -f ';
else
$force = ' ';
$disk_path = $_GET["disk_path"];
exec($parted_script . $force . $disk_path, $output, $ret_val);
if ($ret_val == 0) {
print("OK");
} else {
foreach ($output as $key => $val)
if ($val == '')
unset($output[$key]);
print(implode(', ', $output));
}
exit();
}
} else {
// just create the page
$disks_list = get_disks_list();
if ($disks_list["ret_val"] != 0 || count($disks_list["disks"]) == 0)
$no_disk = true;
else
$no_disk = false;
}
?>
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="author" content="Elphel"/>
<link rel="stylesheet" href="js/bootstrap/css/bootstrap.css">
<script src="js/jquery-2.2.3.js"></script>
<script src="js/jquery-ui/jquery-ui.js"></script>
<script src="js/bootstrap/js/bootstrap.js"></script>
<script src="format_disk.js"></script>
</head>
<body onload="init_actions()" style="padding-top:0px;">
<h2 id="title" style="padding-left:10px;">Format disk</h2>
<div style="padding-left:10px;">
<table class="table">
<thead>
<tr><th>Disk</th><th>Total size</th><th>System partition</th><th>Status</th></tr>
</thead>
<tbody id="disks_list">
<?php table_body($disks_list); ?>
</tbody>
</table>
</div>
<div style="padding-left:10px;">
<span class="checkbox"><label><input id="chk_force" type="checkbox">Forse 'mkfs' to create a file system</label></span>
<button id="btn_format" type="button" class="<?php btn_class($no_disk); ?>"><b>Format</b></button>
</div>
</body>
</html>