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<?php
if (isset($db))
return;
class MyDB extends SQLite3 {
function __construct() {
parent::__construct('/srv/http/vhosts/eckner.net/colocation.eckner.net/backend/sqlite.db');
}
function exec($query) {
$result = parent::exec($query);
if (!$result)
die();
return $result;
}
function query($query) {
$result = parent::query($query);
if (!$result)
die();
return $result;
}
function prepare($query) {
$result = parent::prepare($query);
if (!$result)
die();
return $result;
}
function add_key() {
$stm = prepare('INSERT INTO keys (key) VALUES (:key)');
$stm -> bindValue('key', bin2hex(random_bytes(64)));
$stm -> execute();
$key_id = $db -> lastInsertRowID();
$stm -> close();
return $key_id;
}
function get_value_id_of($machine, $state) {
if (is_int($machine) && is_int($state)) {
$stm = $db -> prepare(
'SELECT "values".id as value_id FROM "values"' .
' WHERE "values".state_id = :state_id' .
' AND "values".machine_id = :machine_id'
);
$stm -> bindValue('state_id', $state);
$stm -> bindValue('machine_id', $machine);
} else {
$stm = $db -> prepare(
'SELECT "values".id as value_id FROM "values"' .
' JOIN states ON states.id = "values".state_id' .
' JOIN machines ON machines.id = "values".machine_id' .
' WHERE states.name = :state' .
' AND machines.name = :machine'
);
$stm -> bindValue('state', $state);
$stm -> bindValue('machine', $machine);
}
$result = $stm -> execute();
if (!$result)
die();
$result = $result -> fetchArray();
if (!$result)
die();
$stm -> close();
return $result['value_id'];
}
function add_key_for($machine, $state) {
$key_id = add_key();
$value_id = get_value_id_of($machine, $state);
$stm = $db -> prepare(
'INSERT INTO permissions (key_id, value_id) VALUES (:key,:value)');
$stm -> bindValue('value', $value_id);
$stm -> bindValue('key', $key_id);
$stm -> execute();
$stm -> close();
}
}
$db = new MyDB();
if(!$db) {
echo $db->lastErrorMsg();
die();
}
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