eesyphp/src/functions.php

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<?php
namespace EesyPHP;
use League\MimeTypeDetection\ExtensionMimeTypeDetector;
/*
* Parser/formater values helpers
*/
function format_size($size, $digit=False) {
if (!$digit && $digit!==0) $digit=2;
if ($size>=1099511627776)
return number_format($size/1099511627776,$digit)."To";
elseif ($size>=1073741824)
return number_format($size/1073741824,$digit)."Go";
else if ($size>=1048576)
return number_format($size/1048576,$digit)."Mo";
else if ($size>=1024)
return number_format($size/1024,$digit)."Ko";
else
return $size."o";
}
/*
* Generic Data/value helpers
*/
function vardump($data) {
ob_start();
var_dump($data);
$data = ob_get_contents();
ob_end_clean();
return $data;
}
/**
* Format a callable object for logging
* @param string|array $callable The callable object
* @return string The callable object string representation
*/
function format_callable($callable) {
if (is_string($callable))
return $callable."()";
if (is_array($callable))
if (is_string($callable[0]))
return $callable[0]."::".$callable[1]."()";
elseif (is_object($callable[0]))
return get_class($callable[0])."->".$callable[1]."()";
else
return "Unkown->".$callable[1]."()";
// @phpstan-ignore-next-line
return vardump($callable);
}
/**
* Check if given value is empty
* @param mixed $value
* @return bool
*/
function check_is_empty($value) {
switch(gettype($value)) {
case "boolean":
case "integer":
case "double":
case "object":
case "resource":
return False;
case "array":
case "string":
if ($value == "0") return false;
return empty($value);
case "NULL":
return True;
}
return empty($value);
}
/**
* Ensure the given value is an array and return an array with this value if not
* @param mixed $value
* @return array
*/
function ensure_is_array($value) {
if (is_array($value))
return $value;
if (check_is_empty($value))
return array();
return array($value);
}
/**
* Get a specific configuration variable value
*
* @param mixed $value The value to cast
* @param string $type The type of expected value. The configuration variable
* value will be cast as this type. Could be : bool, int,
* float or string.
* @param bool $split If true, $type=='array' and $value is a string, split
* the value by comma (optional, default: false)
* @return mixed The cast value
**/
function cast($value, $type, $split=false) {
switch($type) {
case 'bool':
case 'boolean':
return boolval($value);
case 'int':
case 'integer':
return intval($value);
case 'float':
return floatval($value);
case 'str':
case 'string':
return strval($value);
case 'array':
if ($split && is_string($value))
$value = preg_split('/ *, */', $value);
return ensure_is_array($value);
}
return $value;
}
/*
* Generic file/directory helpers
*/
/**
* Dump file content to propose its download
* @param string $file_path The file path
* @param string|null $mime_type The file MIME type (optional, default: auto-detected)
* @param int|null $max_age Max age in second of this file in browser cache (optional,
* default: null=1h, set to False to disable Cache-Control header)
* @return void
*/
function dump_file($file_path, $mime_type=null, $max_age=null) {
if (is_file($file_path)) {
if (is_null($mime_type)) {
$detector = new ExtensionMimeTypeDetector();
$mime_type = $detector->detectMimeTypeFromFile($file_path);
Log::trace('MIME type detected for "%s" is "%s"', $file_path, $mime_type);
}
header("Content-Type: $mime_type");
$last_modified_time = filemtime($file_path);
$etag = md5_file($file_path);
$max_age = is_null($max_age)?3600:$max_age;
if ($max_age)
header("Cache-Control: max-age=$max_age, must-revalidate");
header("Last-Modified: ".gmdate("D, d M Y H:i:s", $last_modified_time)." GMT");
header("Etag: $etag");
if (
(
isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) &&
@strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) == $last_modified_time
) || (
isset($_SERVER['HTTP_IF_NONE_MATCH']) &&
trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag
)
) {
header("HTTP/1.1 304 Not Modified");
exit();
}
header('Pragma: public');
header('Content-Length: ' . filesize($file_path));
readfile($file_path);
exit();
}
Url :: trigger_error_404();
}
function delete_directory($dir, $recursive=true) {
$files = array_diff(scandir($dir), array('.','..'));
if ($recursive) {
foreach ($files as $file) {
if (is_dir("$dir/$file")) {
if (!delete_directory("$dir/$file", true)) {
Log :: error("delete_directory($dir) : Fail to delete sub-directory '$dir/$file'.");
return false;
}
}
else if (!unlink("$dir/$file")) {
Log :: error("delete_directory($dir) : Fail to delete '$dir/$file'.");
return false;
}
}
}
else if (!empty($files)) {
Log :: error("delete_directory($dir) : Directory is not empty.");
return false;
}
return rmdir($dir);
}
/*
* Run external command helper
*/
/**
* Run external command
*
* @param $command string|array The command. It's could be an array of the command with its
* arguments.
* @param $data_stdin string|null The command arguments (optional, default: null)
* @param $escape_command_args boolean If true, the command will be escaped
* (optional, default: true)
*
* @return false|array An array of return code, stdout and stderr result or False in case of fatal
* error
**/
function run_external_command($command, $data_stdin=null, $escape_command_args=true) {
if (is_array($command))
$command = implode(' ', $command);
if ($escape_command_args)
$command = escapeshellcmd($command);
Log :: debug("Run external command: '$command'");
$descriptorspec = array(
0 => array("pipe", "r"), // stdin
1 => array("pipe", "w"), // stdout
2 => array("pipe", "w"), // stderr
);
$process = proc_open($command, $descriptorspec, $pipes);
if (!is_resource($process)) {
Log :: error("Fail to run external command: '$command'");
return false;
}
if (!is_null($data_stdin)) {
fwrite($pipes[0], $data_stdin);
}
fclose($pipes[0]);
$stdout = stream_get_contents($pipes[1]);
fclose($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[2]);
$return_value = proc_close($process);
$error = (!empty($stderr) || $return_value != 0);
Log :: log(
($error?'ERROR':'DEBUG'),
"External command ".($error?"error":"result").":\n".
"\tCommand : $command\n".
"\tReturn code: $return_value\n".
"\tOutput:\n".
"\t\t- Stdout :\n$stdout\n\n".
"\t\t- Stderr :\n$stderr"
);
return array($return_value, $stdout, $stderr);
}
/**
* Check an AJAX request and trigger a fatal error on fail
*
* Check if session key is present and valid and set AJAX
* mode.
*
* @param string|null $session_key string The current session key (optional)
*
* @return void
**/
function check_ajax_request($session_key=null) {
Url :: api_mode(true);
if (Session :: check_key($session_key))
Tpl :: fatal_error('Invalid request');
if (Tpl :: debug_ajax())
Log :: debug("Ajax Request : ".vardump($_REQUEST));
}
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