Class ShibbolethWAYF. More...

Collaboration diagram for ShibWAYF:

Public Member Functions
	__construct ()

	is_selection ()

	isSelection ()

	is_valid_selection ()

	isValidSelection ()

	generateSelection ()

	redirect ()
	Redirects user to the local Shibboleth session initatiotor with already set GET arguments for the right IdP and return location. More...

	setSAMLCookie ()
	Sets the standard SAML domain cookie that is also used to preselect the right entry on the local wayf More...

	showNotice ()

	getIdplist ()

	generateCookieArray ($value)

	generateCookieValue (array $arr_cookie)

	appendCookieValue ($value, array $arr_cookie)

Data Fields
	$is_selection = false

	$is_valid_selection = false

	$selected_idp = '-'

	$idp_list = false

Detailed Description

Class ShibbolethWAYF.

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

Author: Fabian Schmid fs@st.nosp@m.uder.nosp@m.-raim.nosp@m.ann..nosp@m.ch

Definition at line 34 of file class.ilShibbolethWAYF.php.

Constructor & Destructor Documentation

◆ __construct()

ShibWAYF::__construct ( )

Definition at line 54 of file class.ilShibbolethWAYF.php.

References $_POST, getIdplist(), is_selection(), and is_valid_selection().

                                       {
                 // Was the WAYF form submitted?
                 if (isset($_POST['home_organization_selection'])) {
                         $this->is_selection = true;
                 } else {
                         $this->is_selection = false;
                 }
                 // Was selected IdP a valid
                 $this->idp_list = $this->getIdplist();
                 if (isset($_POST['idp_selection']) AND
                         $_POST['idp_selection'] != '-' AND isset($this->idp_list[$_POST['idp_selection']])
                 ) {
                         $this->is_valid_selection = true;
                         $this->selected_idp = $_POST['idp_selection'];
                 } else {
                         $this->is_valid_selection = false;
                 }
         }

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Member Function Documentation

◆ appendCookieValue()

ShibWAYF::appendCookieValue	(		$value,
		array	$arr_cookie
	)

Parameters

$value
$arr_cookie	Append a value to the array of IDPs

Returns: array

Definition at line 252 of file class.ilShibbolethWAYF.php.

Referenced by setSAMLCookie().

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

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◆ generateCookieArray()

ShibWAYF::generateCookieArray ( $value )

Parameters

$value Generates an array of IDPs using the cookie value

Returns: array

Definition at line 221 of file class.ilShibbolethWAYF.php.

Referenced by generateSelection(), and setSAMLCookie().

                                                     {
                 $arr_cookie = explode(' ', $value);
                 $arr_cookie = array_map('base64_decode', $arr_cookie);
 
                 return $arr_cookie;
         }

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◆ generateCookieValue()

ShibWAYF::generateCookieValue ( array $arr_cookie )

Parameters

$arr_cookie Generate the value that is stored in the cookie using the list of IDPs

Returns: string

Definition at line 236 of file class.ilShibbolethWAYF.php.

Referenced by setSAMLCookie().

                                                                {
                 $arr_cookie = array_map('base64_encode', $arr_cookie);
                 $value = implode(' ', $arr_cookie);
 
                 return $value;
         }

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◆ generateSelection()

ShibWAYF::generateSelection ( )

Returns: string

Definition at line 109 of file class.ilShibbolethWAYF.php.

References $_COOKIE, $_GET, $idp_list, $lng, generateCookieArray(), and getIdplist().

                                             {
                 if (! $this->idp_list) {
                         $arr_idp_list = $this->getIdplist();
                 } else {
                         $arr_idp_list = $this->idp_list;
                 }
                 $idp_cookie = $this->generateCookieArray($_COOKIE['_saml_idp']);
                 $lng = new ilLanguage($_GET["lang"]);
                 if (count($idp_cookie) > 0 AND isset($arr_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">' . $lng->txt("shib_member_of") . '</option>';
                 }
                 foreach ($arr_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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◆ getIdplist()

ShibWAYF::getIdplist ( )

Returns: array Generate array of IdPs from ILIAS Shibboleth settings

Definition at line 197 of file class.ilShibbolethWAYF.php.

References $idp_list, and $ilSetting.

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

                                      {
                 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;
         }

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◆ is_selection()

ShibWAYF::is_selection ( )

Returns: bool

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

References isSelection().

Referenced by __construct(), and showNotice().

                                        {
                 return $this->isSelection();
         }

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◆ is_valid_selection()

ShibWAYF::is_valid_selection ( )

Returns: bool

Definition at line 93 of file class.ilShibbolethWAYF.php.

References isValidSelection().

Referenced by __construct(), and showNotice().

                                              {
                 return $this->isValidSelection();
         }

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◆ isSelection()

ShibWAYF::isSelection ( )

Returns: bool

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

References $is_selection.

Referenced by is_selection().

                                       {
                 return $this->is_selection;
         }

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◆ isValidSelection()

ShibWAYF::isValidSelection ( )

Returns: bool

Definition at line 101 of file class.ilShibbolethWAYF.php.

References $is_valid_selection.

Referenced by is_valid_selection().

                                            {
                 return $this->is_valid_selection;
         }

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◆ redirect()

ShibWAYF::redirect ( )

Redirects user to the local Shibboleth session initatiotor with already set GET arguments for the right IdP and return location.

Definition at line 144 of file class.ilShibbolethWAYF.php.

References $_POST, $idp_list, $selected_idp, getIdplist(), and ilUtil\redirect().

                                    {
                 if (! $this->idp_list) {
                         $arr_idp_list = $this->getIdplist();
                 } else {
                         $arr_idp_list = $this->idp_list;
                 }
                 // Where to return after the authentication process
                 $target = trim(ILIAS_HTTP_PATH, '/') . '/shib_login.php?target=' . $_POST["il_target"];
                 $idp_data = $arr_idp_list[$this->selected_idp];
                 if (isset($idp_data[1])) {
                         ilUtil::redirect($idp_data[1] . '?providerId=' . urlencode($this->selected_idp) . '&target='
                                 . urlencode($target));
                 } else {
                         // TODO: This has to be changed to /Shibboleth.sso/DS?entityId= for 
                         // Shibbolet 2.x sometime...
                         ilUtil::redirect('/Shibboleth.sso?providerId=' . urlencode($this->selected_idp) . '&target='
                                 . urlencode($target));
                 }
         }

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◆ setSAMLCookie()

ShibWAYF::setSAMLCookie ( )

Sets the standard SAML domain cookie that is also used to preselect the right entry on the local wayf

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

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

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

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◆ showNotice()

ShibWAYF::showNotice ( )

Returns: string Show notice in case no IdP was selected

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

References $_GET, $lng, is_selection(), and is_valid_selection().

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

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Field Documentation

◆ $idp_list

ShibWAYF::$idp_list = false

Definition at line 51 of file class.ilShibbolethWAYF.php.

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

◆ $is_selection

ShibWAYF::$is_selection = false

Definition at line 39 of file class.ilShibbolethWAYF.php.

Referenced by isSelection().

◆ $is_valid_selection

ShibWAYF::$is_valid_selection = false

Definition at line 43 of file class.ilShibbolethWAYF.php.

Referenced by isValidSelection().

◆ $selected_idp

ShibWAYF::$selected_idp = '-'

Definition at line 47 of file class.ilShibbolethWAYF.php.

Referenced by redirect().

The documentation for this class was generated from the following file:

Services/AuthShibboleth/classes/class.ilShibbolethWAYF.php

Public Member Functions

Data Fields

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ appendCookieValue()

◆ generateCookieArray()

◆ generateCookieValue()

◆ generateSelection()

◆ getIdplist()

◆ is_selection()

◆ is_valid_selection()

◆ isSelection()

◆ isValidSelection()

◆ redirect()

◆ setSAMLCookie()

◆ showNotice()

Field Documentation

◆ $idp_list

◆ $is_selection

◆ $is_valid_selection

◆ $selected_idp