class.ilPDNewsBlockGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("Services/News/classes/class.ilNewsForContextBlockGUI.php");

class ilPDNewsBlockGUI extends ilNewsForContextBlockGUI
{
        static $block_type = "pdnews";
        static $st_data;
        protected $acc_results = false;
        
        function __construct()
        {
                global $ilCtrl, $lng, $ilUser, $ilBench, $ilAccess, $ilCtrl;

                $ilBench->start("News", "ilPDNewsBlockGUI_Constructor");
                $news_set = new ilSetting("news");
                
                // NOT ilNewsForContextBlockGUI::__construct() !
                ilBlockGUI::__construct();
                
                $lng->loadLanguageModule("news");
                include_once("./Services/News/classes/class.ilNewsItem.php");

                $this->setLimit(5);
                $this->setAvailableDetailLevels(3);

                $this->dynamic = false;

                // store current access check results
//              $this->acc_results = $ilAccess->getResults();
                
                // read access cache
//              $this->acc_cache_hit = $ilAccess->readCache(
//                      ((int) $news_set->get("acc_cache_mins")) * 60);

                include_once("./Services/News/classes/class.ilNewsCache.php");
                $this->acache = new ilNewsCache();
                $cres = unserialize($this->acache->getEntry($ilUser->getId().":0"));
                $this->cache_hit = false;
                if ($this->acache->getLastAccessStatus() == "hit" && is_array($cres))
                {
                        self::$st_data = ilNewsItem::prepareNewsDataFromCache($cres);;
                        $this->cache_hit = true;
                }

                if ($this->getDynamic() && !$this->cache_hit)
                {
                        $this->dynamic = true;
                        $data = array();
                }
                else if ($this->getCurrentDetailLevel() > 0)
                {
                        // do not ask two times for the data (e.g. if user displays a 
                        // single item on the personal desktop and the news block is 
                        // displayed at the same time)
                        if (empty(self::$st_data))
                        {
                                self::$st_data = $this->getNewsData();
                                $data = self::$st_data;
                        }
                        else
                        {
                                $data = self::$st_data;
                        }
                }
                else
                {
                        $data = array();
                }
                
                $this->setTitle($lng->txt("news_internal_news"));
                $this->setRowTemplate("tpl.block_row_news_for_context.html", "Services/News");
                
                $this->setData($data);
                
                $this->handleView();
                
                // reset access check results
                $ilAccess->setResults($this->acc_results);
                
                $ilBench->stop("News", "ilPDNewsBlockGUI_Constructor");
        }
        
        function getNewsData()
        {
                global $ilUser, $ilAccess;

                include_once("./Services/News/classes/class.ilNewsCache.php");
                $this->acache = new ilNewsCache();
                
                $per = ilNewsItem::_lookupUserPDPeriod($ilUser->getId());
                $data = ilNewsItem::_getNewsItemsOfUser($ilUser->getId(), false,
                        false, $per);
//              if (!$this->acc_cache_hit)
//              {
//                      $ilAccess->storeCache();
//              }

                $this->acache->storeEntry($ilUser->getId().":0",
                        serialize($data));

                return $data;
        }
        
        static function getBlockType()
        {
                return self::$block_type;
        }
        
        static function isRepositoryObject()
        {
                return false;
        }

        static function getScreenMode()
        {
                global $ilCtrl;
                
                $cmd = $_GET["cmd"];
                if($cmd == "post" && is_array($_POST["cmd"]))
                {
                        $cmd = array_pop(array_keys($_POST["cmd"]));                    
                }
                
                switch($cmd)
                {
                        case "showNews":
                        case "showFeedUrl":
                        case "editSettings":
                        case "changeFeedSettings":
                                return IL_SCREEN_CENTER;
                        
                        default:
                                return IL_SCREEN_SIDE;
                }
        }

        function executeCommand()
        {
                global $ilCtrl;

                $next_class = $ilCtrl->getNextClass();
                $cmd = $ilCtrl->getCmd("getHTML");

                switch ($next_class)
                {
                        default:
                                return $this->$cmd();
                }
        }

        function fillDataSection()
        {
                global $ilBench;
                
                if ($this->dynamic)
                {
                        $this->setDataSection($this->getDynamicReload());
                }
                else if ($this->getCurrentDetailLevel() > 1 && count($this->getData()) > 0)
                {
                        $ilBench->start("News", "ilPDNewsBlockGUI_fillDataSection");
                        parent::fillDataSection();
                        $ilBench->stop("News", "ilPDNewsBlockGUI_fillDataSection");
                }
                else
                {
                        $this->setEnableNumInfo(false);
                        if (count($this->getData()) == 0)
                        {
                                $this->setEnableDetailRow(false);
                        }
                        $this->setDataSection($this->getOverview());
                }
        }

        function getHTML()
        {
                global $ilCtrl, $lng, $ilUser;
                
                // set footer info
                $this->setFooterInfo($lng->txt("news_block_information"), true);
                
                $news_set = new ilSetting("news");
                $enable_internal_rss = $news_set->get("enable_rss_for_internal");
                $allow_shorter_periods = $news_set->get("allow_shorter_periods");
                $allow_longer_periods = $news_set->get("allow_longer_periods");
                $enable_private_feed = $news_set->get("enable_private_feed");

                // subscribe/unsibscribe link
                include_once("./Services/News/classes/class.ilNewsSubscription.php");
                
                // show feed url
                if ($enable_internal_rss)
                {
                        include_once("./Services/News/classes/class.ilRSSButtonGUI.php");
                        $this->addBlockCommand(
                                $ilCtrl->getLinkTarget($this, "showFeedUrl"),
                                $lng->txt("news_get_feed_url"), "", "", true, false, ilRSSButtonGUI::get(ilRSSButtonGUI::ICON_RSS));
                }

                if ($allow_shorter_periods || $allow_longer_periods || $enable_private_feed)
                {
                        $this->addBlockCommand(
                                $ilCtrl->getLinkTarget($this, "editSettings"),
                                $lng->txt("settings"));
                }
                        
                $per = ilNewsItem::_lookupUserPDPeriod($ilUser->getId());

                if ($per > 0)
                {
                        switch ($per)
                        {
                                case 2:
                                case 3:
                                case 5: $per_str = sprintf($lng->txt("news_period_x_days"), $per); break;
                                case 7: $per_str = $lng->txt("news_period_1_week"); break;
                                case 14: $per_str = sprintf($lng->txt("news_period_x_weeks"), 2); break;
                                case 30: $per_str = $lng->txt("news_period_1_month"); break;
                                case 60: $per_str = sprintf($lng->txt("news_period_x_months"), 2); break;
                                case 120: $per_str = sprintf($lng->txt("news_period_x_months"), 4); break;
                                case 180: $per_str = sprintf($lng->txt("news_period_x_months"), 6); break;
                                case 366: $per_str = $lng->txt("news_period_1_year"); break;
                        }
                        if ($per_str != "")
                        {
                                $this->setTitle($this->getTitle().' <span style="font-weight:normal;">- '.$per_str."</span>");
                        }
                }

                if ($this->getCurrentDetailLevel() == 0)
                {
                        return "";
                }

                $en = "";
                if ($ilUser->getPref("il_feed_js") == "n")
                {
                        $en = $this->getJSEnabler();
                }

                return ilBlockGUI::getHTML().$en;
        }
        

        function showFeedUrl()
        {
                global $lng, $ilCtrl, $ilUser, $ilSetting;

                $news_set = new ilSetting("news");
                
                
                include_once("./Services/News/classes/class.ilNewsItem.php");

                if ($news_set->get("enable_private_feed")) 
                {
                        $tpl = new ilTemplate("tpl.show_priv_feed_url.html", true, true, "Services/News");                              

                        $tpl->setVariable("TXT_PRIV_TITLE", $lng->txt("news_get_priv_feed_title"));
                        
                        // #14365
                        if($ilUser->_getFeedPass($GLOBALS['DIC']['ilUser']->getId()))
                        {
                                $tpl->setVariable("TXT_PRIV_INFO", $lng->txt("news_get_priv_feed_info"));
                                $tpl->setVariable("TXT_PRIV_FEED_URL", $lng->txt("news_feed_url"));                     
                                $tpl->setVariable("VAL_PRIV_FEED_URL",
                                        str_replace("://", "://" . $ilUser->getLogin() . ":-password-@", ILIAS_HTTP_PATH)."/privfeed.php?client_id=".rawurlencode(CLIENT_ID)."&user_id=".$ilUser->getId().
                                                "&hash=".ilObjUser::_lookupFeedHash($ilUser->getId(), true));
                                $tpl->setVariable("VAL_PRIV_FEED_URL_TXT",
                                        str_replace("://", "://" . $ilUser->getLogin() . ":-password-@", ILIAS_HTTP_PATH)."/privfeed.php?client_id=".rawurlencode(CLIENT_ID)."&<br />user_id=".$ilUser->getId().
                                                "&hash=".ilObjUser::_lookupFeedHash($ilUser->getId(), true));
                        }
                        else
                        {
                                $tpl->setVariable("TXT_PRIV_INFO", $lng->txt("news_inactive_private_feed_info"));
                                $tpl->setVariable("EDIT_SETTINGS_URL", $ilCtrl->getLinkTarget($this, "editSettings"));
                                $tpl->setVariable("EDIT_SETTINGS_TXT", $lng->txt("news_edit_news_settings"));
                        }
                }
                else
                {
                        $tpl = new ilTemplate("tpl.show_feed_url.html", true, true, "Services/News");
                }
                $tpl->setVariable("TXT_TITLE", $lng->txt("news_get_feed_title"));
                $tpl->setVariable("TXT_INFO", $lng->txt("news_get_feed_info"));
                $tpl->setVariable("TXT_FEED_URL", $lng->txt("news_feed_url"));
                $tpl->setVariable("VAL_FEED_URL",
                        ILIAS_HTTP_PATH."/feed.php?client_id=".rawurlencode(CLIENT_ID)."&user_id=".$ilUser->getId().
                                "&hash=".ilObjUser::_lookupFeedHash($ilUser->getId(), true));
                $tpl->setVariable("VAL_FEED_URL_TXT",
                        ILIAS_HTTP_PATH."/feed.php?client_id=".rawurlencode(CLIENT_ID)."&<br />user_id=".$ilUser->getId().
                                "&hash=".ilObjUser::_lookupFeedHash($ilUser->getId(), true));
                
                include_once("./Services/PersonalDesktop/classes/class.ilPDContentBlockGUI.php");
                $content_block = new ilPDContentBlockGUI();
                $content_block->setContent($tpl->get());
                $content_block->setTitle($lng->txt("news_internal_news"));
                $content_block->addHeaderCommand($ilCtrl->getParentReturn($this),
                        $lng->txt("selected_items_back"));

                return $content_block->getHTML();
        }

        function addCloseCommand($a_content_block)
        {
                global $lng, $ilCtrl;
                
                $a_content_block->addHeaderCommand($ilCtrl->getParentReturn($this),
                        $lng->txt("selected_items_back"));
        }

        
        function showNews()
        {
                // workaround for dynamic mode (if cache is disabled, showNews has no data)
//              if (empty(self::$st_data))
//              {
//                      $this->setData($this->getNewsData());
//              }

                return parent::showNews();
        }

        function editSettings(ilPropertyFormGUI $a_private_form = null)
        {
                global $ilUser, $lng, $ilCtrl, $ilSetting;
                
                $news_set = new ilSetting("news");
                $enable_internal_rss = $news_set->get("enable_rss_for_internal");
                $allow_shorter_periods = $news_set->get("allow_shorter_periods");
                $allow_longer_periods = $news_set->get("allow_longer_periods");
                $enable_private_feed = $news_set->get("enable_private_feed");
        
                if (!$a_private_form && ($allow_shorter_periods || $allow_longer_periods))
                {
                        include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                        $form = new ilPropertyFormGUI();        
                        $form->setFormAction($ilCtrl->getFormaction($this));                    
                        $form->setTitle($lng->txt("news_settings"));

                        include_once("./Services/News/classes/class.ilNewsItem.php");
                        $default_per = ilNewsItem::_lookupDefaultPDPeriod();
                        $per = ilNewsItem::_lookupUserPDPeriod($ilUser->getId());

                        $form->setTableWidth("100%");

                        $per_opts = array(
                                2 => "2 ".$lng->txt("days"),
                                3 => "3 ".$lng->txt("days"),
                                5 => "5 ".$lng->txt("days"),
                                7 => "1 ".$lng->txt("week"),
                                14 => "2 ".$lng->txt("weeks"),
                                30 => "1 ".$lng->txt("month"),
                                60 => "2 ".$lng->txt("months"),
                                120 => "4 ".$lng->txt("months"),
                                180 => "6 ".$lng->txt("months"),
                                366 =>  "1 ".$lng->txt("year"));

                        $unset = array();
                        foreach($per_opts as $k => $opt)
                        {
                                if (!$allow_shorter_periods && ($k < $default_per)) $unset[$k] = $k;
                                if (!$allow_longer_periods && ($k > $default_per)) $unset[$k] = $k;
                        }
                        foreach($unset as $k)
                        {
                                unset($per_opts[$k]);
                        }

                        $per_sel = new ilSelectInputGUI($lng->txt("news_pd_period"),
                                "news_pd_period");
                        //$per_sel->setInfo($lng->txt("news_pd_period_info"));
                        $per_sel->setOptions($per_opts);
                        $per_sel->setValue((int) $per);
                        $form->addItem($per_sel);
                
                        //$form->addCheckboxProperty($lng->txt("news_public_feed"), "notifications_public_feed",
                        //      "1", $public_feed, $lng->txt("news_public_feed_info"));
                        //if ($this->getProperty("public_notifications_option"))
                        //{
                        //      $form->addCheckboxProperty($lng->txt("news_notifications_public"), "notifications_public",
                        //              "1", $public, $lng->txt("news_notifications_public_info"));
                        //}
                        $form->addCommandButton("saveSettings", $lng->txt("save"));
                        $form->addCommandButton("cancelSettings", $lng->txt("cancel"));                 
                        
                        $returnForm = $form->getHTML();
                }

                if ($enable_private_feed) 
                {
                        if(!$a_private_form)
                        {
                                $a_private_form = $this->initPrivateSettingsForm();
                        }
                        $returnForm .= ($returnForm=="") 
                                ? $a_private_form->getHTML()
                                : "<br>".$a_private_form->getHTML();
                }
                
                return $returnForm;
        }
        
        protected function initPrivateSettingsForm()
        {
                global $ilCtrl, $lng, $ilUser;
                
                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $feed_form = new ilPropertyFormGUI();
                $feed_form->setFormAction($ilCtrl->getFormaction($this));
                $feed_form->setTitle($lng->txt("priv_feed_settings"));

                $feed_form->setTableWidth("100%");

                $enable_private_feed = new ilCheckboxInputGUI($lng->txt("news_enable_private_feed"), "enable_private_feed");
                $enable_private_feed->setChecked($ilUser->_getFeedPass($ilUser->getId()));
                $feed_form->addItem($enable_private_feed);              

                $passwd = new ilPasswordInputGUI($lng->txt("password"), "desired_password");
                $passwd->setRequired(true);
                $passwd->setInfo(ilUtil::getPasswordRequirementsInfo());
                $enable_private_feed->addSubItem($passwd);

                $feed_form->addCommandButton("changeFeedSettings", $lng->txt("save"));
                $feed_form->addCommandButton("cancelSettings", $lng->txt("cancel"));
                
                return $feed_form;
        }

        function cancelSettings()
        {
                global $ilCtrl;
                
                $ilCtrl->returnToParent($this);
        }
        
        function saveSettings()
        {
                global $ilCtrl, $ilUser;
                
                $news_set = new ilSetting("news");
                $enable_internal_rss = $news_set->get("enable_rss_for_internal");
                
                ilBlockSetting::_write($this->getBlockType(), "news_pd_period",
                        $_POST["news_pd_period"],
                        $ilUser->getId(), $this->block_id);
                
                include_once("./Services/News/classes/class.ilNewsCache.php");
                $cache = new ilNewsCache();
                $cache->deleteEntry($ilUser->getId().":0");
                        
                $ilCtrl->returnToParent($this);
        }

        function changeFeedSettings()
        {
                global $ilCtrl, $lng, $ilUser;
                
                $form = $this->initPrivateSettingsForm();
                if($form->checkInput())
                {                       
                        // Deactivate private Feed - just delete the password
                        if (!$form->getInput("enable_private_feed")) 
                        {                               
                                $ilUser->_setFeedPass($ilUser->getId(), "");            
                                ilUtil::sendSuccess($lng->txt("priv_feed_disabled"),true);                              
                                // $ilCtrl->returnToParent($this);
                                $ilCtrl->redirect($this, "showFeedUrl");
                        }
                        else
                        {
                                $passwd = $form->getInput("desired_password");
                                require_once 'Services/User/classes/class.ilUserPasswordManager.php';
                                if(ilUserPasswordManager::getInstance()->verifyPassword($ilUser, $passwd))
                                {
                                        $form->getItemByPostVar("desired_password")->setAlert($lng->txt("passwd_equals_ilpasswd"));
                                        ilUtil::sendFailure($lng->txt("form_input_not_valid"));
                                }
                                else
                                {
                                        $ilUser->_setFeedPass($ilUser->getId(), $passwd);               
                                        ilUtil::sendSuccess($lng->txt("saved_successfully"),true);                                      
                                        // $ilCtrl->returnToParent($this);                                      
                                        $ilCtrl->redirect($this, "showFeedUrl");
                                }
                        }                       
                }
                
                $form->setValuesByPost();
                return $this->editSettings($form);
        }

}

?>