Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\App;
/**
* Determine all arguments of the current call, including
* - The whole querystring (except the pagename/q parameter)
* - The command
* - The arguments (C-Style based)
* - The count of arguments
*/
class Arguments
{
/**
* @var string The complete query string
*/
private $queryString;
/**
* @var string The current Friendica command
*/
private $command;
/**
* @var array The arguments of the current execution
*/
private $argv;
/**
* @var int The count of arguments
*/
private $argc;
public function __construct(string $queryString = '', string $command = '', array $argv = [], int $argc = 0)
{
$this->queryString = $queryString;
$this->command = $command;
$this->argv = $argv;
$this->argc = $argc;
}
/**
* @return string The whole query string of this call with url-encoded query parameters
*/
public function getQueryString()
{
return $this->queryString;
}
/**
* @return string The whole command of this call
*/
public function getCommand()
{
return $this->command;
}
/**
* @return array All arguments of this call
*/
public function getArgv()
{
return $this->argv;
}
/**
* @return int The count of arguments of this call
*/
public function getArgc()
{
return $this->argc;
}
/**
* Returns the value of a argv key
* @todo there are a lot of $a->argv usages in combination with ?? which can be replaced with this method
*
* @param int $position the position of the argument
* @param mixed $default the default value if not found
*
* @return mixed returns the value of the argument
*/
public function get(int $position, $default = '')
{
return $this->has($position) ? $this->argv[$position] : $default;
}
/**
* @param int $position
*
* @return bool if the argument position exists
*/
public function has(int $position)
{
return array_key_exists($position, $this->argv);
}
/**
* Determine the arguments of the current call
*
* @param array $server The $_SERVER variable
* @param array $get The $_GET variable
*
* @return Arguments The determined arguments
*/
public function determine(array $server, array $get)
{
// removing leading / - maybe a nginx problem
$server['QUERY_STRING'] = ltrim($server['QUERY_STRING'] ?? '', '/');
$queryParameters = [];
parse_str($server['QUERY_STRING'], $queryParameters);
if (!empty($get['pagename'])) {
$command = trim($get['pagename'], '/\\');
} elseif (!empty($queryParameters['pagename'])) {
$command = trim($queryParameters['pagename'], '/\\');
} elseif (!empty($get['q'])) {
// Legacy page name parameter, now conflicts with the search query parameter
$command = trim($get['q'], '/\\');
} else {
$command = '';
}
// Remove generated and one-time use parameters
unset($queryParameters['pagename']);
unset($queryParameters['zrl']);
unset($queryParameters['owt']);
/*
* Break the URL path into C style argc/argv style arguments for our
* modules. Given "http://example.com/module/arg1/arg2", $this->argc
* will be 3 (integer) and $this->argv will contain:
* [0] => 'module'
* [1] => 'arg1'
* [2] => 'arg2'
*/
if ($command) {
$argv = explode('/', $command);
} else {
$argv = [];
}
$argc = count($argv);
$queryString = $command . ($queryParameters ? '?' . http_build_query($queryParameters) : '');
return new Arguments($queryString, $command, $argv, $argc);
}
}