Class ShibbolethWAYF. More...

Collaboration diagram for ShibWAYF:

Public Member Functions
	ShibWAYF ()
	isSelection ()
	isValidSelection ()
	generateSelection ()
	redirect ()
	setSAMLCookie ()
	showNotice ()
	getIDPList ()
	generateCookieArray ($value)
	generateCookieValue ($CookieArray)
	appendCookieValue ($value, $CookieArray)

Data Fields
	$isSelection = false
	$isValidSelection = false
	$selectedIDP = '-'
	$IDPList = false

Detailed Description

Class ShibbolethWAYF.

This class handles the Home Organization selection (also called Where Are You From service) process for Shibboleth users.

Definition at line 32 of file class.ilShibbolethWAYF.php.

Member Function Documentation

ShibWAYF::appendCookieValue	(	$value,
		$CookieArray
	)

Definition at line 244 of file class.ilShibbolethWAYF.php.

Referenced by setSAMLCookie().

        {
                
                array_push($CookieArray, $value);
                $CookieArray = array_reverse($CookieArray);
                $CookieArray = array_unique($CookieArray);
                $CookieArray = array_reverse($CookieArray);
                
                return $CookieArray;
        }

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ShibWAYF::generateCookieArray ( $value )

Definition at line 223 of file class.ilShibbolethWAYF.php.

Referenced by generateSelection(), and setSAMLCookie().

        {
                
                // Decodes and splits cookie value
                $CookieArray = split(' ', $value);
                $CookieArray = array_map('base64_decode', $CookieArray);
                
                return $CookieArray;
        }

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ShibWAYF::generateCookieValue ( $CookieArray )

Definition at line 234 of file class.ilShibbolethWAYF.php.

Referenced by setSAMLCookie().

        {
        
                // Merges cookie content and encodes it
                $CookieArray = array_map('base64_encode', $CookieArray);
                $value = implode(' ', $CookieArray);
                return $value;
        }

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ShibWAYF::generateSelection ( )

Definition at line 85 of file class.ilShibbolethWAYF.php.

References $_COOKIE, $_GET, $IDPList, $ilSetting, $lng, $selectedIDP, generateCookieArray(), and getIDPList().

        {
                global $ilSetting;
                
                // Calculate select element
                
                $selectElement = '';
                
                if (!$this->IDPList)
                {
                        $idp_list = $this->getIDPList();
                }
                else
                {
                        $idp_list = $this->IDPList;
                }
                
                $idp_cookie = $this->generateCookieArray($_COOKIE['_saml_idp']);
                
                $lng = new ilLanguage($_GET["lang"]);
                
                if (count($idp_cookie) > 0 && isset($idp_list[end($idp_cookie)]))
                {
                        $selectedIDP = end($idp_cookie);
                        $selectElement = '
                <select name="idp_selection">
                        <option value="-">'.$lng->txt("shib_member_of").'</option>';
                }
                else
                {
                        $selectElement = '
                <select name="idp_selection">
                        <option value="-" selected="selected">'.$lng->txt("shib_member_of").'</option>';
                }
                
                foreach ($idp_list as $idp_id => $idp_data){
                        
                        if ($idp_id == $selectedIDP)
                        {
                                $selectElement .= '<option value="'.$idp_id.'" selected="selected">'.$idp_data[0].'</option>';
                        }
                        else
                        {
                                $selectElement .= '<option value="'.$idp_id.'">'.$idp_data[0].'</option>';
                        }
                }
                
                $selectElement .= '
                </select>';
                
                return $selectElement;
        }

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ShibWAYF::getIDPList ( )

Definition at line 198 of file class.ilShibbolethWAYF.php.

References $ilSetting, and exit.

Referenced by generateSelection(), redirect(), and ShibWAYF().

        {
                global $ilSetting;
                
                $idp_list = array();
                
                $idp_raw_list = split("\n", $ilSetting->get("shib_idp_list"));
                
                foreach ($idp_raw_list as $idp_line){
                        $idp_data = split(',', $idp_line);
                        if (isset($idp_data[2]))
                        {
                                $idp_list[trim($idp_data[0])] = array(trim($idp_data[1]),trim($idp_data[2])); 
                        }
                        elseif(isset($idp_data[1]))
                        {
                                $idp_list[trim($idp_data[0])] = array(trim($idp_data[1]));
                        }
                }
                
                return $idp_list;
                print_r($idp_list);exit;
        }

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ShibWAYF::isSelection ( )

Definition at line 70 of file class.ilShibbolethWAYF.php.

References $isSelection.

Referenced by ShibWAYF(), and showNotice().

        {
                
                return $this->isSelection;
        }

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ShibWAYF::isValidSelection ( )

Definition at line 77 of file class.ilShibbolethWAYF.php.

References $isValidSelection.

Referenced by ShibWAYF(), and showNotice().

        {
                
                return $this->isValidSelection;
                
        }

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ShibWAYF::redirect ( )

Definition at line 140 of file class.ilShibbolethWAYF.php.

References $IDPList, $selectedIDP, and getIDPList().

        {
                if (!$this->IDPList)
                {
                        $idp_list = $this->getIDPList();
                }
                else
                {
                        $idp_list = $this->IDPList;
                }
                
                // Where to return after the authentication process
                $target = trim(ILIAS_HTTP_PATH, '/').'/shib_login.php?target='.$_POST["il_target"];
                
                $idp_data = $idp_list[$this->selectedIDP];
                if (isset($idp_data[1]))
                {
                        ilUtil::redirect($idp_data[1].'?providerId='.urlencode($this->selectedIDP).'&target='.urlencode($target));
                }
                else
                {
                        ilUtil::redirect('/Shibboleth.sso?providerId='.urlencode($this->selectedIDP).'&target='.urlencode($target));
                }
                
        }

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ShibWAYF::setSAMLCookie ( )

Definition at line 168 of file class.ilShibbolethWAYF.php.

References $_COOKIE, appendCookieValue(), generateCookieArray(), and generateCookieValue().

        {
                if (isset($_COOKIE['_saml_idp']))
                {
                        $IDPArray = $this->generateCookieArray($_COOKIE['_saml_idp']);
                }
                else
                {
                        $IDPArray = array();
                }
                $IDPArray = $this->appendCookieValue($this->selectedIDP, $IDPArray);
                setcookie ('_saml_idp', $this->generateCookieValue($IDPArray), time() + (100*24*3600), '/');
        }

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ShibWAYF::ShibWAYF ( )

Definition at line 40 of file class.ilShibbolethWAYF.php.

References getIDPList(), isSelection(), and isValidSelection().

        {
                // Was the WAYF form submitted?
                if (isset($_POST['home_organization_selection']))
                {
                        $this->isSelection = true;
                }
                else
                {
                        $this->isSelection = false;
                }
                
                // Was selected IdP a valid
                $this->IDPList = $this->getIDPList();
                if (
                        isset($_POST['idp_selection'])
                        && $_POST['idp_selection'] != '-'
                        && isset($this->IDPList[$_POST['idp_selection']])
                        )
                {
                        $this->isValidSelection = true;
                        $this->selectedIDP = $_POST['idp_selection'];
                }
                else
                {
                        $this->isValidSelection = false;
                }
        }

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ShibWAYF::showNotice ( )

Definition at line 183 of file class.ilShibbolethWAYF.php.

References $_GET, $lng, isSelection(), and isValidSelection().

        {
                $lng = new ilLanguage($_GET["lang"]);
                
                if (!$this->isSelection() or $this->isValidSelection())
                {
                        return '';
                }
                else
                {
                        return $lng->txt("shib_invalid_home_organization");
                }
        }