mirror of
https://git.code.sf.net/p/seeddms/code
synced 2024-11-26 07:22:11 +00:00
342 lines
11 KiB
PHP
342 lines
11 KiB
PHP
<?php
|
|
// SeedDMS. Document Management System
|
|
// Copyright (C) 2013 Uwe Steinmann
|
|
//
|
|
// 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 2 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, write to the Free Software
|
|
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
class SeedDMS_Controller_Common {
|
|
/**
|
|
* @var array $params list of parameters
|
|
* @access protected
|
|
*/
|
|
protected $params;
|
|
|
|
/**
|
|
* @var integer $error error number of last run
|
|
* @access protected
|
|
*/
|
|
protected $error;
|
|
|
|
/**
|
|
* @var string $errormsg error message of last run
|
|
* @access protected
|
|
*/
|
|
protected $errormsg;
|
|
|
|
/**
|
|
* @var mixed $lasthookresult result of last hook
|
|
* @access protected
|
|
*/
|
|
protected $lasthookresult;
|
|
|
|
public function __construct($params) {
|
|
$this->params = $params;
|
|
$this->error = 0;
|
|
$this->errormsg = '';
|
|
}
|
|
|
|
/**
|
|
* Call method with name in $get['action']
|
|
*
|
|
* Until 5.1.26 (6.0.19) this method took the name of the
|
|
* controller method to run from the element 'action' passed
|
|
* in the array $get. Since 5.1.27 (6.0.20) a PSR7 Request
|
|
* object is available in the controller and used to get the
|
|
* action.
|
|
*
|
|
* @params array $get $_GET or $_POST variables (since 5.1.27 this is no longer used)
|
|
* @return mixed return value of called method
|
|
*/
|
|
public function __invoke($get=array()) {
|
|
$action = null;
|
|
if(!$action = $this->getParam('action')) {
|
|
$request = $this->getParam('request');
|
|
if($request) {
|
|
if($request->isMethod('get'))
|
|
$action = $request->query->get('action');
|
|
elseif($request->isMethod('post'))
|
|
$action = $request->request->get('action');
|
|
}
|
|
}
|
|
if(!$this->callHook('preRun', get_class($this), $action ? $action : 'run')) {
|
|
if($action) {
|
|
if(method_exists($this, $action)) {
|
|
$refl = new ReflectionMethod($this, $action);
|
|
if($refl->isPublic())
|
|
return $this->{$action}();
|
|
else {
|
|
echo "Action '".$action."' not public";
|
|
return false;
|
|
}
|
|
} else {
|
|
echo "Missing action '".$action."'";
|
|
return false;
|
|
}
|
|
} else
|
|
return $this->run();
|
|
} else {
|
|
return false;
|
|
}
|
|
$this->callHook('postRun', get_class($this), $action ? $action : 'run');
|
|
}
|
|
|
|
public function setParams($params) {
|
|
$this->params = $params;
|
|
}
|
|
|
|
public function setParam($name, $value) {
|
|
$this->params[$name] = $value;
|
|
}
|
|
|
|
/**
|
|
* Return value of a parameter with the given name
|
|
*
|
|
* This function may return null if the parameter does not exist or
|
|
* has a value of null. If in doubt call hasParam() to check if the
|
|
* parameter exists.
|
|
*
|
|
* @param string $name name of parameter
|
|
* @return mixed value of parameter or null if parameter does not exist
|
|
*/
|
|
public function getParam($name) {
|
|
return isset($this->params[$name]) ? $this->params[$name] : null;
|
|
}
|
|
|
|
/**
|
|
* Check if the controller has a parameter with the given name
|
|
*
|
|
* @param string $name name of parameter
|
|
* @return boolean true if parameter exists otherwise false
|
|
*/
|
|
public function hasParam($name) {
|
|
return isset($this->params[$name]) ? true : false;
|
|
}
|
|
|
|
/**
|
|
* Remove a parameter with the given name
|
|
*
|
|
* @param string $name name of parameter
|
|
*/
|
|
public function unsetParam($name) {
|
|
if(isset($this->params[$name]))
|
|
unset($this->params[$name]);
|
|
}
|
|
|
|
public function run() {
|
|
}
|
|
|
|
/**
|
|
* Get error number of last run
|
|
*
|
|
* @return integer error number
|
|
*/
|
|
public function getErrorNo() { /* {{{ */
|
|
return $this->error;
|
|
} /* }}} */
|
|
|
|
/**
|
|
* Get error message of last run
|
|
*
|
|
* @return string error message
|
|
*/
|
|
public function getErrorMsg() { /* {{{ */
|
|
return $this->errormsg;
|
|
} /* }}} */
|
|
|
|
/**
|
|
* Set error message
|
|
*
|
|
* @param string $msg error message
|
|
*/
|
|
public function setErrorMsg($msg) { /* {{{ */
|
|
$this->errormsg = $msg;
|
|
} /* }}} */
|
|
|
|
/**
|
|
* Return a list of hook classes for the current class
|
|
*
|
|
* Hooks are associated to a controller class. Calling a hook with
|
|
* SeedDMS_View_Common::callHook() will run through a list of
|
|
* controller classes searching for the hook. This method returns this
|
|
* list.
|
|
*
|
|
* If a controller is implemented in SeedDMS_View_Example which inherits
|
|
* from SeedDMS_Theme_Style which again inherits from SeedDMS_View_Common,
|
|
* then this method will return an array with the elments:
|
|
* 'Example', 'Style', 'Common'. If SeedDMS_View_Example also sets
|
|
* the class property 'controllerAliasName', then this value will be added
|
|
* to the beginning of the list.
|
|
*
|
|
* When a hook is called, it will run through this list and checks
|
|
* if $GLOBALS['SEEDDMS_HOOKS']['controller'][<element>] exists and contains
|
|
* an instanciated class. This class must implement the hook.
|
|
*
|
|
* @return array list of controller class names.
|
|
*/
|
|
protected function getHookClassNames() { /* {{{ */
|
|
$tmps = array();
|
|
/* the controllerAliasName can be set in the controller to specify a different name
|
|
* than extracted from the class name.
|
|
*/
|
|
if(property_exists($this, 'controllerAliasName') && !empty($this->controllerAliasName)) {
|
|
$tmps[] = $this->controllerAliasName;
|
|
}
|
|
$tmp = explode('_', get_class($this));
|
|
$tmps[] = $tmp[2];
|
|
foreach(class_parents($this) as $pc) {
|
|
$tmp = explode('_', $pc);
|
|
$tmps[] = $tmp[2];
|
|
}
|
|
/* Run array_unique() in case the parent class has the same suffix */
|
|
$tmps = array_unique($tmps);
|
|
return $tmps;
|
|
} /* }}} */
|
|
|
|
/**
|
|
* Call all hooks registered for a controller
|
|
*
|
|
* Executes all hooks registered for the current controller.
|
|
* A hook is just a php function which is passed the current controller and
|
|
* additional paramaters passed to this method.
|
|
*
|
|
* If a hook returns false, then no other hook will be called, because this
|
|
* method returns right away. If hook returns null, then this is treated like
|
|
* it was never called and the next hook is called. Any other value
|
|
* returned by a hook will be temporarily saved (possibly overwriting a value
|
|
* from a previously called hook) and the next hook is called.
|
|
* The temporarily saved return value is eventually returned by this method
|
|
* when all hooks are called and no following hook failed.
|
|
* The temporarily saved return value is also saved in a protected class
|
|
* variable $lasthookresult which is initialized to null. This could be used
|
|
* by following hooks to check if preceding hook did already succeed.
|
|
*
|
|
* Consider that a failing hook (returns false) will imediately quit this
|
|
* function an return false, even if a formerly called hook has succeeded.
|
|
* Also consider, that a second succeeding hook will overwrite the return value
|
|
* of a previously called hook.
|
|
* Third, keep in mind that there is no predefined order of hooks.
|
|
*
|
|
* Example 1: Assuming the hook 'loginRestrictions' in the 'Login' controller
|
|
* is implemented by two extensions.
|
|
* One extension restricts login to a certain time of the day and a second one
|
|
* checks the strength of the password. If the password strength is to low, it
|
|
* will prevent login. If the hook in the first extension allows login (returns true)
|
|
* and the second doesn't (returns false), then this method will return false.
|
|
* If the hook in the second extension doesn't care and therefore returns null, then
|
|
* this method will return true.
|
|
*
|
|
* Example 2: Assuming the hook 'authenticate' in the 'Login' controller
|
|
* is implemented by two extensions. This hook must return false if authentication
|
|
* fails, null if the hook does not care, or a
|
|
* valid user in case of a successful authentication.
|
|
* If the first extension is able to authenticate the user, the hook in the second
|
|
* extension will still be called and could fail. So the return value of this
|
|
* method is false. The second hook could actually succeed as well and return a
|
|
* different user than the first hook which will eventually be returned by this
|
|
* method. The last hook will always win. If you need to know if a previously
|
|
* called hook succeeded, you can check the class variable $lasthookresult in the
|
|
* hook.
|
|
*
|
|
* @param $hook string name of hook
|
|
* @return mixed false if one of the hooks fails,
|
|
* true/value if all hooks succedded,
|
|
* null if no hook was called
|
|
*/
|
|
function callHook($hook) { /* {{{ */
|
|
$tmps = $this->getHookClassNames();
|
|
$ret = null;
|
|
foreach($tmps as $tmp)
|
|
if(isset($GLOBALS['SEEDDMS_HOOKS']['controller'][lcfirst($tmp)])) {
|
|
$this->lasthookresult = null;
|
|
foreach($GLOBALS['SEEDDMS_HOOKS']['controller'][lcfirst($tmp)] as $hookObj) {
|
|
if (method_exists($hookObj, $hook)) {
|
|
switch(func_num_args()) {
|
|
case 4:
|
|
$tmpret = $hookObj->$hook($this, func_get_arg(1), func_get_arg(2), func_get_arg(3));
|
|
break;
|
|
case 3:
|
|
$tmpret = $hookObj->$hook($this, func_get_arg(1), func_get_arg(2));
|
|
break;
|
|
case 2:
|
|
$tmpret = $hookObj->$hook($this, func_get_arg(1));
|
|
break;
|
|
case 1:
|
|
default:
|
|
$tmpret = $hookObj->$hook($this);
|
|
}
|
|
if($tmpret === false) {
|
|
return $tmpret;
|
|
}
|
|
if($tmpret !== null) {
|
|
$this->lasthookresult = $tmpret;
|
|
if(is_string($tmpret)) {
|
|
$ret = ($ret === null) ? $tmpret : (is_string($ret) ? $ret.$tmpret : array_merge($ret, array($tmpret)));
|
|
} elseif(is_array($tmpret)) { // || is_object($tmpret)) {
|
|
$ret = ($ret === null) ? $tmpret : (is_string($ret) ? array_merge(array($ret), $tmpret) : array_merge($ret, $tmpret));
|
|
} else
|
|
$ret = $tmpret;
|
|
}
|
|
}
|
|
}
|
|
// return $this->lasthookresult;
|
|
}
|
|
return $ret;
|
|
} /* }}} */
|
|
|
|
/**
|
|
* Check if a hook is registered
|
|
*
|
|
* @param $hook string name of hook
|
|
* @return mixed false if one of the hooks fails,
|
|
* true if all hooks succedded,
|
|
* null if no hook was called
|
|
*/
|
|
function hasHook($hook) { /* {{{ */
|
|
$tmps = $this->getHookClassNames();
|
|
foreach($tmps as $tmp) {
|
|
if(isset($GLOBALS['SEEDDMS_HOOKS']['controller'][lcfirst($tmp)])) {
|
|
foreach($GLOBALS['SEEDDMS_HOOKS']['controller'][lcfirst($tmp)] as $hookObj) {
|
|
if (method_exists($hookObj, $hook)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
} /* }}} */
|
|
|
|
/**
|
|
* Check if the access on the contoller with given name or the current
|
|
* controller itself may be accessed.
|
|
*
|
|
* The function requires the parameter 'accessobject' to be available in the
|
|
* controller, because it calls SeedDMS_AccessOperation::check_controller_access()
|
|
* to check access rights. If the the optional $name is not set the
|
|
* current controller is used.
|
|
*
|
|
* @param string|array $name name of controller or list of controller names
|
|
* @return boolean true if access is allowed otherwise false
|
|
*/
|
|
protected function check_access($name='') { /* {{{ */
|
|
if(!$name)
|
|
$name = $this;
|
|
if(!isset($this->params['accessobject']))
|
|
return false;
|
|
$access = $this->params['accessobject']->check_controller_access($name);
|
|
return $access;
|
|
} /* }}} */
|
|
|
|
}
|