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feat: add videodb media index with Docker stack

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- Add videodb PHP/MySQL media collection manager (Blu-ray, DVD, CD)
- Dockerfile: PHP 8.1 + Apache with GD/mysqli/exif extensions
- docker-compose.yml: app on port 6761 + MySQL 8.0 with health checks
- docker-entrypoint.sh: auto-generates config.inc.php from env vars,
  waits for MySQL, initializes DB schema idempotently
- init-db.php: CLI schema installer using app's own prefix_query() logic
- Persistent volumes for DB, cache, and cover images

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Malin
2026-05-11 09:49:52 +02:00
commit f55c91276e
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videodb/core/functions.core.php Normal file
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<?php
/**
* General functions
*
* Contains globally available tool functions. It is included in every
* page and sets up some defaults like error reporting, environment
* setups and config loading
*
* @package Core
* @author Andreas Goetz <cpuidle@gmx.de>
* @author Andreas Gohr <a.gohr@web.de>
* @author Chinamann <chinamann@users.sourceforge.net>
* @version $Id: functions.core.php,v 1.1 2013/04/26 15:08:30 andig2 Exp $
*/
if (!function_exists('errorpage')) {
function errorpage($title = 'An error occured', $body = '', $stacktrace = false) {
}
}
/**
* Output debug info
*
* @author Andreas Goetz <cpuidle@gmx.de>
* @param mixed $var Variable to dump
* @param bool $ret Return result instead of outputting
* @param bool $plain Indicate that \n separator is used
*/
function dump($var, $ret = false, $plain = false)
{
global $argv;
if (isset($argv) && is_array($argv) && count($argv) > 0) $plain = true;
if (is_array($var) || is_object($var))
$var = print_r($var, 1);
else if (is_bool($var))
$var = ($var) ? 'TRUE' : 'FALSE';
$var .= (is_array($argv)&&count($argv) > 0 || $plain) ? "\n" : "<br/>\n";
if ($ret) return $var;
echo $var;
}
/**
* Write variable to file
*
* @author Chinamann <chinamann@users.sourceforge.net>
* @param string $filename Filename to dump to
* @param var $var Variable to dump
*/
function file_append($filename, $var, $append = true)
{
$log = fopen($filename, $append ? 'a' : 'w');
fwrite($log, dump($var, true, true));
fclose($log);
}
/**
* Write to debug log
*
* @author Andreas Goetz <cpuidle@gmx.de>
* @param mixed $var Variable to dump
*/
function dlog($var)
{
file_append(LOG_FILE, $var);
}
/**
* safe formoutputter
*
* @param string $name The input string
* @return string The cleaned string
*/
function formvar($name)
{
if (!is_null($name))
{
return htmlspecialchars($name);
}
return "";
}
/**
* Get high resolution time
*
* @return integer current time in microseconds
*/
function getmicrotime()
{
list($usec, $sec) = explode(' ', microtime());
return ((float)$usec + (float)$sec);
}
/**
* Return mysqli db connection object
*
* @return mysqli database handle
*/
function getConnection()
{
global $config, $dbh;
$dbh = mysqli_connect('p:'.$config['db_server'], $config['db_user'], $config['db_password'], $config['db_database']);
if (mysqli_connect_error())
errorpage('DB Connection Error',
"<p>Edit the database settings in <code>".CONFIG_FILE."</code>.</p>
<p>Alternatively, consider running the <a href='install.php'>installation script</a>.</p>");
if (DB_CHARSET)
{
if (mysqli_set_charset($dbh, DB_CHARSET) === false)
errorpage('DB Link Error', 'Couldn\'t set encoding to '.DB_CHARSET);
}
return($dbh);
}
/**
* Escape SQL string according to current DB charset settings
*
* @param string $sql_string SQL string to escape
* @return string escaped string
*/
function escapeSQL($sql_string)
{
global $dbh;
if (!is_null($sql_string))
{
if (!is_resource($dbh)) $dbh = getConnection();
return(mysqli_real_escape_string($dbh, $sql_string));
}
return ("");
}
/**
* SQL wrapper for all Database accesses
*
* @param string $sql_string The SQL-Statement to execute
* @return mixed either the resultset as an array with hashes or the insertid
*/
function runSQL($sql_string, $verify = true)
{
global $config, $dbh, $SQLtrace;
if ($config['debug'])
{
dlog("\n".$_SERVER['REQUEST_URI']);
if (function_exists('xdebug_get_function_stack')) dlog(join(' -> ', array_column(xdebug_get_function_stack(), 'function')));
dlog($sql_string);
$timestamp = getmicrotime();
}
if (!is_resource($dbh)) $dbh = getConnection();
$res = mysqli_query($dbh, $sql_string);
// mysqli_db_query returns either positive result ressource or true/false for an insert/update statement
if ($res === false)
{
$result = false;
if ($verify)
{
// report DB Problem
errorpage('Database Problem', mysqli_error($dbh)."\n<br />\n".$sql_string, true);
}
}
elseif ($res === true)
{
// on insert, return id of created record
$result = mysqli_insert_id($dbh);
}
else
{
// return associative result array
$result = array();
for ($i=0; $i<mysqli_num_rows($res); $i++)
{
$result[] = mysqli_fetch_assoc($res);
}
mysqli_free_result($res);
}
if ($config['debug'])
{
$timestamp = getmicrotime() - $timestamp;
dlog('Time: '.$timestamp);
// collect all SQL info for debugging
$SQLtrace[] = array('sql' => $sql_string, 'time' => $timestamp);
}
# mysqli_close($dbh);
return $result;
}
/**
* Checks if the page is accessed from within the local net.
*
* @return bool true if localnet
*/
function localnet()
{
global $config;
return (preg_match('/'.$config['localnet'].'/', $_SERVER['REMOTE_ADDR']));
}
/**
* checks if the page is accessed from within the local net.
* If not, displays a simple error page and exits
*/
function localnet_or_die()
{
if (!localnet()) errorpage('Forbidden', 'You are not allowed to access this page');
}
/**
* Set connection encoding according to config file or language specification
*/
function db_set_encoding()
{
global $config, $lang;
// set connection character set and collation
if (DB_CHARSET)
{
$sql = "SET NAMES '".DB_CHARSET."'";
$collation = ($lang['collation']) ? DB_CHARSET.'_'.$lang['collation'] : DB_COLLATION;
if ($collation) $sql .= " COLLATE '".$collation."'";
runSQL($sql);
}
}
/**
* Redirect to new location
*
* @author Andreas Goetz <cpuidle@gmx.de>
* @param string $dest Redirect destination
* @todo Read somewhere that according to RFC redirects need to specify full URI
*/
function redirect($dest)
{
header('Location: '.$dest);
exit();
}
/**
* Convert an array of associative arrays (e.g. a database query result) to an associative key=>value array
*
* Sample: array_associate( 0=>(a=>1a, b=1b) 1=>(a=>2a, b=>2b), "a", "b" ) gives 1a=>1b, 2a=>2b
*
* If $value is false, the whole array is associated instead of a specific value
*
* Sample: array_associate( 0=>(a=>1a, b=1b) 1=>(a=>2a, b=>2b), "a", false ) gives 1a=>(b=>1b), 2a=>(b=>2b
*
* TODO Check if this can be replaced by PHP5.5 array_column() function
*
* @author Andreas Goetz <cpuidle@gmx.de>
* @param $ary SQL result array
* @param $key key index name
* @param $value value index name
* @return array resulting associative array
*/
function array_associate($ary, $columnKey, $value = false)
{
$res = array();
foreach ($ary as $row)
{
$res[$row[$columnKey]] = ($value) ? $row[$value] : $row;
}
return $res;
}
?>