<?php
/**
* Consent script
*
* This script displays a page to the user, which requests that the user
* authorizes the release of attributes.
*
* @package simpleSAMLphp
*/
/**
* Explicit instruct consent page to send no-cache header to browsers to make
* sure the users attribute information are not store on client disk.
*
* In an vanilla apache-php installation is the php variables set to:
*
* session.cache_limiter = nocache
*
* so this is just to make sure.
*/
session_cache_limiter('nocache');
$globalConfig = SimpleSAML_Configuration::getInstance();
SimpleSAML_Logger::info('Consent - getconsent: Accessing consent interface');
if (!array_key_exists('StateId', $_REQUEST)) {
throw new SimpleSAML_Error_BadRequest(
'Missing required StateId query parameter.'
);
}
$id = $_REQUEST['StateId'];
// sanitize the input
$sid = SimpleSAML_Utilities::parseStateID($id);
if (!is_null($sid['url'])) {
SimpleSAML_Utilities::checkURLAllowed($sid['url']);
}
$state = SimpleSAML_Auth_State::loadState($id, 'consent:request');
if (array_key_exists('core:SP', $state)) {
$spentityid = $state['core:SP'];
} else if (array_key_exists('saml:sp:State', $state)) {
$spentityid = $state['saml:sp:State']['core:SP'];
} else {
$spentityid = 'UNKNOWN';
}
// The user has pressed the yes-button
if (array_key_exists('yes', $_REQUEST)) {
if (array_key_exists('saveconsent', $_REQUEST)) {
SimpleSAML_Logger::stats('consentResponse remember');
} else {
SimpleSAML_Logger::stats('consentResponse rememberNot');
}
$statsInfo = array(
'remember' => array_key_exists('saveconsent', $_REQUEST),
);
if (isset($state['Destination']['entityid'])) {
$statsInfo['spEntityID'] = $state['Destination']['entityid'];
}
SimpleSAML_Stats::log('consent:accept', $statsInfo);
if ( array_key_exists('consent:store', $state)
&& array_key_exists('saveconsent', $_REQUEST)
&& $_REQUEST['saveconsent'] === '1'
) {
/* Save consent. */
$store = $state['consent:store'];
$userId = $state['consent:store.userId'];
$targetedId = $state['consent:store.destination'];
$attributeSet = $state['consent:store.attributeSet'];
SimpleSAML_Logger::debug(
'Consent - saveConsent() : [' . $userId . '|' .
$targetedId . '|' . $attributeSet . ']'
);
try {
$store->saveConsent($userId, $targetedId, $attributeSet);
} catch (Exception $e) {
SimpleSAML_Logger::error('Consent: Error writing to storage: ' . $e->getMessage());
}
}
SimpleSAML_Auth_ProcessingChain::resumeProcessing($state);
}
// Prepare attributes for presentation
$attributes = $state['Attributes'];
$noconsentattributes = $state['consent:noconsentattributes'];
// Remove attributes that do not require consent
foreach ($attributes AS $attrkey => $attrval) {
if (in_array($attrkey, $noconsentattributes)) {
unset($attributes[$attrkey]);
}
}
$para = array(
'attributes' => &$attributes
);
// Reorder attributes according to attributepresentation hooks
SimpleSAML_Module::callHooks('attributepresentation', $para);
// Make, populate and layout consent form
$t = new SimpleSAML_XHTML_Template($globalConfig, 'consent:consentform.php');
$t->data['srcMetadata'] = $state['Source'];
$t->data['dstMetadata'] = $state['Destination'];
$t->data['yesTarget'] = SimpleSAML_Module::getModuleURL('consent/getconsent.php');
$t->data['yesData'] = array('StateId' => $id);
$t->data['noTarget'] = SimpleSAML_Module::getModuleURL('consent/noconsent.php');
$t->data['noData'] = array('StateId' => $id);
$t->data['attributes'] = $attributes;
$t->data['checked'] = $state['consent:checked'];
// Fetch privacypolicy
if (array_key_exists('privacypolicy', $state['Destination'])) {
$privacypolicy = $state['Destination']['privacypolicy'];
} elseif (array_key_exists('privacypolicy', $state['Source'])) {
$privacypolicy = $state['Source']['privacypolicy'];
} else {
$privacypolicy = false;
}
if ($privacypolicy !== false) {
$privacypolicy = str_replace(
'%SPENTITYID%',
urlencode($spentityid),
$privacypolicy
);
}
$t->data['sppp'] = $privacypolicy;
// Set focus element
switch ($state['consent:focus']) {
case 'yes':
$t->data['autofocus'] = 'yesbutton';
break;
case 'no':
$t->data['autofocus'] = 'nobutton';
break;
case null:
default:
break;
}
if (array_key_exists('consent:store', $state)) {
$t->data['usestorage'] = true;
} else {
$t->data['usestorage'] = false;
}
if (array_key_exists('consent:hiddenAttributes', $state)) {
$t->data['hiddenAttributes'] = $state['consent:hiddenAttributes'];
} else {
$t->data['hiddenAttributes'] = array();
}
$t->show();
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