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egroupware/preferences/inc/class.preferences_settings.inc.php

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<?php
/**
* EGroupware: Preferences app UI for settings/preferences
*
* @link http://www.egroupware.org
* @author Ralf Becker <rb@stylite.de>
* @package preferences
* @copyright (c) 2013 by Ralf Becker <rb@stylite.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
require_once EGW_INCLUDE_ROOT.'/etemplate/inc/class.etemplate.inc.php';
/**
* UI for settings / preferences
*/
class preferences_settings
{
/**
* Methods callable via menuaction
* @var array
*/
public $public_functions = array(
'index' => true,
);
/**
* App we work on
* @var string
*/
public $appname = 'preferences';
/**
* Preferences read by call_hook
* @var array
*/
public $settings = array();
/**
* Edit preferences
*
* @param array $content=null
* @param string $msg=''
*/
function index(array $content=null, $msg='')
{
$tpl = new etemplate('preferences.settings');
if (!is_array($content))
{
$appname = isset($_GET['appname']) && $_GET['appname'] != 'preferences' ? $_GET['appname'] : 'common';
$type = 'user';
$account_id = $GLOBALS['egw_info']['user']['account_id'];
if ($GLOBALS['egw_info']['user']['apps']['admin'] &&
isset($_GET['account_id']) && (int)$_GET['account_id'] &&
$GLOBALS['egw']->accounts->exists((int)$_GET['account_id']))
{
$account_id = (int)$_GET['account_id'];
$type = $_GET['account_id'] < 0 ? 'group' : 'user';
}
}
else
{
//error_log(__METHOD__."(".array2string($content).")");
if ($content['button'])
{
list($button) = each($content['button']);
switch($button)
{
case 'save':
case 'apply':
// ToDo: save preferences
$appname = $content['old_appname'] ? $content['old_appname'] : 'common';
list($type,$account_id) = explode(':', $content['old_type']);
// merge prefs of all tabs together again
$prefs = array();
foreach($content as $name => $val)
{
if (is_array($val) && strpos($name, 'tab') === 0)
{
$prefs = array_merge($prefs, $val);
}
}
error_log(__METHOD__."() button=$button, content=".array2string($content).' --> prefs='.array2string($prefs));;;
if ($account_id && $account_id != $GLOBALS['egw']->preferences->account_id)
{
$GLOBALS['egw']->preferences->account_id = $account_id;
$GLOBALS['egw']->preferences->read_repository();
}
$attribute = $type == 'group' ? 'user' : $type;
if (!($msg=$this->process_array($GLOBALS['egw']->preferences->$attribute, $prefs, $content['types'], $appname, $attribute)))
{
$msg = lang('Preferences saved.'); //.array2string($prefs);
}
if ($button == 'apply') break;
// fall throught
case 'cancel':
egw::redirect_link('/preferences/index.php');
}
}
$appname = $content['appname'] ? $content['appname'] : 'common';
list($type,$account_id) = explode(':', $content['type']);
//_debug_array($prefs);
}
if ($account_id && $account_id != $GLOBALS['egw']->preferences->account_id)
{
$GLOBALS['egw']->preferences->account_id = $account_id;
$GLOBALS['egw']->preferences->read_repository();
}
$preserve = array(
'appname' => $content['appname'],
'type' => $content['type'],
'old_appname' => $content['appname'],
'old_type' => $content['type'],
'types' => array(),
);
if ($button == 'apply') $old_tab = $content['tabs'];
$content = $this->get_content($appname, $type, $sel_options, $readonlys, $preserve['types'], $tpl);
error_log(__METHOD__."() preserve=".array2string($preserve));
if ($button == 'apply') $content['tabs'] = $old_tab;
// if not just saved, call validation before, to be able to show failed validation of current prefs
if (!isset($button))
{
$attribute = $type == 'group' ? 'user' : $type;
$msg = $this->process_array($GLOBALS['egw']->preferences->$attribute,
$GLOBALS['egw']->preferences->{$attribute}[$appname], $preserve['types'], $appname, $attribute, true);
}
$content['msg'] = $msg;
$tpl->exec('preferences.preferences_settings.index', $content, $sel_options, $readonlys, $preserve);
}
/**
* Verify and save preferences
*
* @param array &$repository values get updated here
* @param array $values new values
* @param array $types setting-name => type
* @param string $appname appname or 'common'
* @param string $type 'user', 'default', 'forced'
* @param boolean $only_verify=false
* @return string with verification error or null on success
*/
function process_array(array &$repository, array $values, array $types=null, $appname, $type, $only_verify=false)
{
//_debug_array($repository);
$prefs = &$repository[$appname];
unset($prefs['']);
//_debug_array($values);exit;
foreach($values as $var => $value)
{
error_log(__METHOD__."() types[var='$var']='{$types[$var]}', value=".array2string($value));
// type specific validation
switch((string)$types[$var])
{
case 'password': // dont write empty password-fields
if (empty($value)) continue 2;
break;
case 'vfs_file':
case 'vfs_dir':
case 'vfs_dirs':
if ($value === '')
{
// empty is always allowed
// If forced, empty == not set
if($type == 'forced')
{
unset($prefs[$var]);
// need to call preferences::delete, to also set affective prefs!
if (!$only_verify) $GLOBALS['egw']->preferences->delete($appname, $var, $type);
continue 2;
}
}
elseif ($types[$var] == 'vfs_file')
{
if ($value[0] != '/' || !egw_vfs::stat($value) || egw_vfs::is_dir($value))
{
$error = lang('%1 is no existing vfs file!',htmlspecialchars($value));
}
}
else
{
// split multiple comma or whitespace separated directories
// to still allow space or comma in dirnames, we also use the trailing slash of all pathes to split
foreach($types[$var] == 'vfs_dir' ? array($value) : preg_split('/[,\s]+\//', $value) as $n => $dir)
{
if ($n) $dir = '/'.$dir; // re-adding trailing slash removed by split
if ($dir[0] != '/' || !egw_vfs::stat($dir) || !egw_vfs::is_dir($dir))
{
$error .= ($error ? ' ' : '').lang('%1 is no existing vfs directory!',$dir);
}
}
}
break;
case 'Array': // notifies
$value = $GLOBALS['egw']->preferences->lang_notify($value, $types[$var], True);
break;
}
if (isset($value) && $value !== '' && $value !== '**NULL**')
{
if (is_array($value)) $value = implode(',',$value); // multiselect
$prefs[$var] = $value;
// need to call preferences::add, to also set affective prefs!
if (!$only_verify) $GLOBALS['egw']->preferences->add($appname, $var, $prefs[$var], $type);
}
else
{
unset($prefs[$var]);
// need to call preferences::delete, to also set affective prefs!
if (!$only_verify) $GLOBALS['egw']->preferences->delete($appname, $var, $type);
}
}
//echo "prefix='$prefix', prefs=<pre>"; print_r($repository[$appname]); echo "</pre>\n";
// the following hook can be used to verify the prefs
// if you return something else than False, it is treated as an error-msg and
// displayed to the user (the prefs are not saved)
//
if(($error .= $GLOBALS['egw']->hooks->single(array(
'location' => 'verify_settings',
'prefs' => $repository[$appname],
'prefix' => $prefix,
'type' => $type
),
$appname
)))
{
return $error;
}
if (!$only_verify) $GLOBALS['egw']->preferences->save_repository(True,$type);
// certain common prefs (language, template, ...) require the session to be re-created
if ($appname == 'common' && !$only_verify)
{
egw::invalidate_session_cache();
}
return null;
}
/**
* Get content, sel_options and readonlys for given appname and type
*
* @param string $appname appname or 'common'
* @param string $type
* @param array &$sel_options
* @param array &$readonlys
* @param array &$types on return setting-name => setting-type
* @param etemplate $tpl
* @throws egw_exception_wrong_parameter
* @return array content
*/
function get_content($appname, $type, &$sel_options, &$readonlys, &$types, $tpl)
{
if (!$this->call_hook($appname, $type))
{
throw new egw_exception_wrong_parameter("Could not find settings for application: ".$appname);
}
$attribute = $type == 'group' ? 'user' : $type;
//error_log(__METHOD__."('$appname', '$type' ) attribute='$attribute', preferences->account_id=".$GLOBALS['egw']->preferences->account_id);
//_debug_array($this->settings); exit;
$sel_options = $readonlys = $content = $tabs = array();
// disable all but first tab and name current tab "tab1", for apps not using sections
$tab = 'tab1';
foreach($this->settings as $setting)
{
if (!is_array($setting)) continue;
if ($type != 'forced' && !empty($GLOBALS['egw']->preferences->forced[$appname][$setting['name']]))
{
continue; // forced preferences are not displayed, unless we edit them
}
$types[$setting['name']] = $old_type = $setting['type'];
switch($old_type)
{
case 'section':
$tab = 'tab'.(1+count($tabs));
$tabs[] = array(
'id' => $tab,
'template' => 'preferences.settings.tab1',
'label' => $setting['title'],
);
// fall through
case 'subsection': // is in old code, but never seen it used
continue 2;
case 'notify':
// ToDo: implementation ...
error_log(__METHOD__."('$appname', '$type') NOT implemented settings type '$old_type'!");
// handle as textarea for now
case 'textarea':
$setting['type'] = is_a($tpl, 'etemplate_old') ? 'textarea' : 'textbox';
$tpl->setElementAttribute($tab.'['.$setting['name'].']', 'multiline', 'true');
// ignoring rows and cols in favor of hardcoded: width: 100%, height: 5em
break;
case 'password':
case 'vfs_file':
case 'vfs_dir':
case 'vfs_dirs':
case 'input':
$setting['type'] = 'textbox';
break;
case 'check':
$setting['type'] = 'select';
$setting['values'] = array('1' => lang('yes'), '0' => lang('no'));
break;
case 'multiselect':
$setting['type'] = 'select';
$tpl->setElementAttribute($tab.'['.$setting['name'].']', 'multiple', 5);
if (!isset($setting['size'])) $setting['size'] = '5'; // old eT
break;
case 'color':
$setting['type'] = 'colorpicker';
break;
}
// move values/options to sel_options array
if (isset($setting['values']) && is_array($setting['values']))
{
if ($old_type != 'multiselect')
{
switch($type)
{
case 'user':
$setting['values'] = array('' => lang('Use default'))+$setting['values'];
break;
case 'default':
case 'group':
$setting['values'] = array('' => lang('No default'))+$setting['values'];
break;
case 'forced';
$setting['values'] = array('**NULL**' => lang('Users choice'))+$setting['values'];
break;
}
}
// need to call fix_encoded_options manually, as id is not matching because of autorepeat
etemplate_widget_menupopup::fix_encoded_options($setting['values']);
$sel_options[$setting['name']] = $setting['values'];
}
if ($type == 'user')
{
$default = $GLOBALS['egw']->preferences->default[$appname][$setting['name']];
if (isset($setting['values']) && (string)$setting['values'][$default] !== '')
{
$default = $setting['values'][$default];
}
elseif (strpos($default, ',') !== false)
{
$values = array();
foreach(explode(',', $default) as $value)
{
if (isset($setting['values'][$value])) $values[] = $setting['values'][$value];
}
if ($values) $default = implode(', ', $values);
}
}
$content[$tab][] = array(
'name' => $setting['name'],
'type' => $setting['type'],
'label' => preg_replace('|<br[ /]*>|i', "\n", $setting['label']),
'help' => $setting['help'], // is html
'size' => $setting['size'], // old eT
'default' => !empty($default) ? lang('Default').': '.$default : null,
'onchange' => $setting['onchange'],
);
$content[$tab][$setting['name']] = $GLOBALS['egw']->preferences->{$attribute}[$appname][$setting['name']];
//if ($old_type == 'multiselect') $content[$tab][$setting['name']] = explode(',', $content[$tab][$setting['name']]);
}
// defining used tabs on run-time
if ($tabs) $tpl->setElementAttribute('tabs', 'tabs', $tabs);
$content['appname'] = $appname;
$sel_options['appname'] = array();
foreach($GLOBALS['egw']->hooks->hook_implemented('settings') as $app)
{
if ($app != 'preferences' && $GLOBALS['egw_info']['apps'][$app])
{
$sel_options['appname'][$app] = $GLOBALS['egw_info']['apps'][$app]['title'];
}
}
natcasesort($sel_options['appname']);
$sel_options['type'] = array(
'user' => 'Your preferences',
'default' => 'Default preferences',
'forced' => 'Forced preferences',
);
if ($GLOBALS['egw_info']['apps']['admin'])
{
$content['type'] = $type;
if ($GLOBALS['egw']->preferences->account_id != $GLOBALS['egw_info']['user']['account_id'])
{
$content['type'] .= ':'.$GLOBALS['egw']->preferences->account_id;
$sel_options['type'][$content['type']] = common::grab_owner_name($GLOBALS['egw']->preferences->account_id);
}
foreach($GLOBALS['egw']->accounts->search(array('type' => 'groups', 'sort' => 'account_lid')) as $account_id => $group)
{
$sel_options['type']['group:'.$account_id] = lang('Preferences').' '.common::display_fullname($group['account_lid'], '', '', $account_id);
}
}
else
{
$content['type'] = 'user';
$readonlys['type'] = true;
}
//_debug_array($content); exit;
//_debug_array($sel_options); //exit;
return $content;
}
/**
* Get preferences by calling various hooks to supply them
*
* Sets $this->appname and $this->settings
*
* @param string $appname appname or 'common'
* @param string $type='user' 'default' or 'forced'
* @return boolean
*/
protected function call_hook($appname, $type='user')
{
$this->appname = $appname == 'common' ? 'preferences' : $appname;
translation::add_app($this->appname);
if($this->appname != 'preferences')
{
translation::add_app('preferences'); // we need the prefs translations too
}
// make type available, to hooks from applications can use it, eg. activesync
$GLOBALS['type'] = $type;
// calling app specific settings hook
$settings = $GLOBALS['egw']->hooks->single('settings',$this->appname);
// it either returns the settings or save it in $GLOBALS['settings'] (deprecated!)
if (isset($settings) && is_array($settings) && $settings)
{
$this->settings = array_merge($this->settings, $settings);
}
elseif(isset($GLOBALS['settings']) && is_array($GLOBALS['settings']) && $GLOBALS['settings'])
{
$this->settings = array_merge($this->settings, $GLOBALS['settings']);
}
else
{
return False; // no settings returned
}
// calling settings hook all apps can answer (for a specific app)
foreach($GLOBALS['egw']->hooks->process('settings_'.$this->appname,$this->appname,true) as $app => $settings)
{
if (isset($settings) && is_array($settings) && $settings)
{
$this->settings = array_merge($this->settings,$settings);
}
}
/* Remove ui-only settings */
if($this->xmlrpc)
{
foreach($this->settings as $key => $valarray)
{
if(!$valarray['xmlrpc'])
{
unset($this->settings[$key]);
}
}
}
else
{
/* Here we include the settings hook file for the current template, if it exists.
This is not handled by the hooks class and is only valid if not using xml-rpc.
*/
$tmpl_settings = EGW_SERVER_ROOT.$GLOBALS['egw']->framework->template_dir.'/hook_settings.inc.php';
if($this->appname == 'preferences' && file_exists($tmpl_settings))
{
include($tmpl_settings);
$this->settings = array_merge($this->settings,$GLOBALS['settings']);
}
}
// check if we have a default/forced value from the settings hook,
// which is NOT stored as default currently
// --> store it as default, to allow to propagate defaults to existing installations
foreach ($this->settings as $name => $data)
{
// only set not yet set default prefs, so user is able to unset it again with ""
// (only works with type vfs_*, other types delete empty values!)
if (!isset($GLOBALS['egw']->preferences->default[$appname][$name]) &&
((string)$data['default'] !== '' || (string)$data['forced'] !== ''))
{
$default = (string)$data['forced'] !== '' ? $data['forced'] : $data['default'];
//echo "<p>".__METHOD__."($appname) $this->appname/$appname/$name=$default NOT yet set!</p>\n";
$GLOBALS['egw']->preferences->default[$appname][$name] = $default;
$need_update = true;
}
}
if ($need_update)
{
$GLOBALS['egw']->preferences->save_repository(false,'default',true);
}
if($this->debug)
{
_debug_array($this->settings);
}
return True;
}
}
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