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<?php |
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/****************************************************************************** |
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* Wikipedia Account Creation Assistance tool * |
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* * |
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* All code in this file is released into the public domain by the ACC * |
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* Development Team. Please see team.json for a list of contributors. * |
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******************************************************************************/ |
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namespace Waca\Fragments; |
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use Waca\DataObjects\Request; |
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use Waca\DataObjects\User; |
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use Waca\Exceptions\ApplicationLogicException; |
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use Waca\Helpers\SearchHelpers\RequestSearchHelper; |
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use Waca\Pages\RequestAction\PageBreakReservation; |
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use Waca\PdoDatabase; |
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use Waca\Providers\Interfaces\ILocationProvider; |
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use Waca\Providers\Interfaces\IRDnsProvider; |
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use Waca\Providers\Interfaces\IXffTrustProvider; |
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use Waca\Security\SecurityManager; |
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use Waca\SiteConfiguration; |
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use Waca\WebRequest; |
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trait RequestData |
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{ |
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/** |
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* @var array Array of IP address classed as 'private' by RFC1918. |
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*/ |
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protected static $rfc1918ips = array( |
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"10.0.0.0" => "10.255.255.255", |
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"172.16.0.0" => "172.31.255.255", |
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"192.168.0.0" => "192.168.255.255", |
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"169.254.0.0" => "169.254.255.255", |
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"127.0.0.0" => "127.255.255.255", |
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); |
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/** |
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* Gets a request object |
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* |
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* @param PdoDatabase $database The database connection |
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* @param int $requestId The ID of the request to retrieve |
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* |
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* @return Request |
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* @throws ApplicationLogicException |
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*/ |
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protected function getRequest(PdoDatabase $database, $requestId) |
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{ |
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if ($requestId === null) { |
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throw new ApplicationLogicException("No request specified"); |
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} |
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$request = Request::getById($requestId, $database); |
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if ($request === false || !is_a($request, Request::class)) { |
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throw new ApplicationLogicException('Could not load the requested request!'); |
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} |
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return $request; |
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} |
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/** |
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* Returns a value stating whether the user is allowed to see private data or not |
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* |
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* @param Request $request |
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* @param User $currentUser |
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* |
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* @return bool |
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* @category Security-Critical |
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*/ |
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protected function isAllowedPrivateData(Request $request, User $currentUser) |
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{ |
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// Test the main security barrier for private data access using SecurityManager |
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if ($this->barrierTest('alwaysSeePrivateData', $currentUser, 'RequestData')) { |
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// Tool admins/check-users can always see private data |
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return true; |
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} |
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// reserving user is allowed to see the data |
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if ($currentUser->getId() === $request->getReserved() |
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&& $request->getReserved() !== null |
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&& $this->barrierTest('seePrivateDataWhenReserved', $currentUser, 'RequestData') |
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) { |
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return true; |
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} |
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// user has the reveal hash |
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if (WebRequest::getString('hash') === $request->getRevealHash() |
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&& $this->barrierTest('seePrivateDataWithHash', $currentUser, 'RequestData') |
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) { |
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return true; |
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} |
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// nope. Not allowed. |
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return false; |
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} |
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/** |
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* Tests the security barrier for a specified action. |
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* |
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* Don't use within templates |
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* |
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* @param string $action |
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* |
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* @param User $user |
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* @param null|string $pageName |
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* |
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* @return bool |
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* @category Security-Critical |
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*/ |
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abstract protected function barrierTest($action, User $user, $pageName = null); |
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/** |
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* Gets the name of the route that has been passed from the request router. |
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* @return string |
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*/ |
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abstract protected function getRouteName(); |
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/** @return SecurityManager */ |
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abstract protected function getSecurityManager(); |
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/** |
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* Sets the name of the template this page should display. |
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* |
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* @param string $name |
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*/ |
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abstract protected function setTemplate($name); |
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/** @return IXffTrustProvider */ |
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abstract protected function getXffTrustProvider(); |
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/** @return ILocationProvider */ |
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abstract protected function getLocationProvider(); |
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/** @return IRDnsProvider */ |
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abstract protected function getRdnsProvider(); |
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/** |
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* Assigns a Smarty variable |
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* |
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* @param array|string $name the template variable name(s) |
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* @param mixed $value the value to assign |
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*/ |
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abstract protected function assign($name, $value); |
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/** |
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* @param int $requestReservationId |
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* @param PdoDatabase $database |
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* @param User $currentUser |
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*/ |
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protected function setupReservationDetails($requestReservationId, PdoDatabase $database, User $currentUser) |
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{ |
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$requestIsReserved = $requestReservationId !== null; |
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$this->assign('requestIsReserved', $requestIsReserved); |
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$this->assign('requestIsReservedByMe', false); |
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if ($requestIsReserved) { |
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$this->assign('requestReservedByName', User::getById($requestReservationId, $database)->getUsername()); |
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$this->assign('requestReservedById', $requestReservationId); |
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if ($requestReservationId === $currentUser->getId()) { |
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$this->assign('requestIsReservedByMe', true); |
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} |
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} |
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$this->assign('canBreakReservation', $this->barrierTest('force', $currentUser, PageBreakReservation::class)); |
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} |
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/** |
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* Adds private request data to Smarty. DO NOT USE WITHOUT FIRST CHECKING THAT THE USER IS AUTHORISED! |
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* |
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* @param Request $request |
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* @param User $currentUser |
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* @param SiteConfiguration $configuration |
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* |
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* @param PdoDatabase $database |
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*/ |
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protected function setupPrivateData( |
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$request, |
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User $currentUser, |
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SiteConfiguration $configuration, |
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PdoDatabase $database |
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) { |
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$xffProvider = $this->getXffTrustProvider(); |
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$relatedEmailRequests = RequestSearchHelper::get($database) |
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->byEmailAddress($request->getEmail()) |
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->withConfirmedEmail() |
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->excludingPurgedData($configuration) |
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->excludingRequest($request->getId()) |
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->fetch(); |
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$this->assign('requestEmail', $request->getEmail()); |
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$emailDomain = explode("@", $request->getEmail())[1]; |
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$this->assign("emailurl", $emailDomain); |
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$this->assign('requestRelatedEmailRequestsCount', count($relatedEmailRequests)); |
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$this->assign('requestRelatedEmailRequests', $relatedEmailRequests); |
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$trustedIp = $xffProvider->getTrustedClientIp($request->getIp(), $request->getForwardedIp()); |
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$this->assign('requestTrustedIp', $trustedIp); |
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$this->assign('requestRealIp', $request->getIp()); |
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$this->assign('requestForwardedIp', $request->getForwardedIp()); |
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$trustedIpLocation = $this->getLocationProvider()->getIpLocation($trustedIp); |
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$this->assign('requestTrustedIpLocation', $trustedIpLocation); |
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$this->assign('requestHasForwardedIp', $request->getForwardedIp() !== null); |
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$relatedIpRequests = RequestSearchHelper::get($database) |
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->byIp($trustedIp) |
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->withConfirmedEmail() |
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->excludingPurgedData($configuration) |
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->excludingRequest($request->getId()) |
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->fetch(); |
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$this->assign('requestRelatedIpRequestsCount', count($relatedIpRequests)); |
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$this->assign('requestRelatedIpRequests', $relatedIpRequests); |
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$this->assign('showRevealLink', false); |
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if ($request->getReserved() === $currentUser->getId() || |
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$this->barrierTest('alwaysSeeHash', $currentUser, 'RequestData') |
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) { |
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$this->assign('showRevealLink', true); |
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$this->assign('revealHash', $request->getRevealHash()); |
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} |
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$this->setupForwardedIpData($request); |
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} |
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/** |
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* Adds checkuser request data to Smarty. DO NOT USE WITHOUT FIRST CHECKING THAT THE USER IS AUTHORISED! |
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* |
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* @param Request $request |
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*/ |
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protected function setupCheckUserData(Request $request) |
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{ |
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$this->assign('requestUserAgent', $request->getUserAgent()); |
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} |
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/** |
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* Sets up the basic data for this request, and adds it to Smarty |
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* |
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* @param Request $request |
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* @param SiteConfiguration $config |
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*/ |
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protected function setupBasicData(Request $request, SiteConfiguration $config) |
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{ |
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$this->assign('requestId', $request->getId()); |
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$this->assign('updateVersion', $request->getUpdateVersion()); |
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$this->assign('requestName', $request->getName()); |
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$this->assign('requestDate', $request->getDate()); |
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$this->assign('requestStatus', $request->getStatus()); |
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$this->assign('requestIsClosed', !array_key_exists($request->getStatus(), $config->getRequestStates())); |
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} |
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/** |
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* Sets up the forwarded IP data for this request and adds it to Smarty |
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* |
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* @param Request $request |
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*/ |
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protected function setupForwardedIpData(Request $request) |
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{ |
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if ($request->getForwardedIp() !== null) { |
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$requestProxyData = array(); // Initialize array to store data to be output in Smarty template. |
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$proxyIndex = 0; |
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// Assuming [client] <=> [proxy1] <=> [proxy2] <=> [proxy3] <=> [us], we will see an XFF header of [client], |
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// [proxy1], [proxy2], and our actual IP will be [proxy3] |
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$proxies = explode(",", $request->getForwardedIp()); |
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$proxies[] = $request->getIp(); |
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// Origin is the supposed "client" IP. |
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$origin = $proxies[0]; |
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$this->assign("forwardedOrigin", $origin); |
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// We step through the servers in reverse order, from closest to furthest |
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$proxies = array_reverse($proxies); |
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// By default, we have trust, because the first in the chain is now REMOTE_ADDR, which is hardest to spoof. |
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$trust = true; |
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/** |
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* @var int $index The zero-based index of the proxy. |
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* @var string $proxyData The proxy IP address (although possibly not!) |
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*/ |
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foreach ($proxies as $index => $proxyData) { |
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$proxyAddress = trim($proxyData); |
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$requestProxyData[$proxyIndex]['ip'] = $proxyAddress; |
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// get data on this IP. |
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$thisProxyIsTrusted = $this->getXffTrustProvider()->isTrusted($proxyAddress); |
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$proxyIsInPrivateRange = $this->getXffTrustProvider() |
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->ipInRange(self::$rfc1918ips, $proxyAddress); |
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if (!$proxyIsInPrivateRange) { |
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$proxyReverseDns = $this->getRdnsProvider()->getReverseDNS($proxyAddress); |
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$proxyLocation = $this->getLocationProvider()->getIpLocation($proxyAddress); |
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} |
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else { |
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// this is going to fail, so why bother trying? |
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$proxyReverseDns = false; |
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$proxyLocation = false; |
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} |
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// current trust chain status BEFORE this link |
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$preLinkTrust = $trust; |
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// is *this* link trusted? Note, this will be true even if there is an untrusted link before this! |
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$requestProxyData[$proxyIndex]['trustedlink'] = $thisProxyIsTrusted; |
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// set the trust status of the chain to this point |
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$trust = $trust & $thisProxyIsTrusted; |
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// If this is the origin address, and the chain was trusted before this point, then we can trust |
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// the origin. |
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if ($preLinkTrust && $proxyAddress == $origin) { |
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// if this is the origin, then we are at the last point in the chain. |
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// @todo: this is probably the cause of some bugs when an IP appears twice - we're missing a check |
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// to see if this is *really* the last in the chain, rather than just the same IP as it. |
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$trust = true; |
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} |
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$requestProxyData[$proxyIndex]['trust'] = $trust; |
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$requestProxyData[$proxyIndex]['rdnsfailed'] = $proxyReverseDns === false; |
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$requestProxyData[$proxyIndex]['rdns'] = $proxyReverseDns; |
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$requestProxyData[$proxyIndex]['routable'] = !$proxyIsInPrivateRange; |
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$requestProxyData[$proxyIndex]['location'] = $proxyLocation; |
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if ($proxyReverseDns === $proxyAddress && $proxyIsInPrivateRange === false) { |
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$requestProxyData[$proxyIndex]['rdns'] = null; |
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} |
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$showLinks = (!$trust || $proxyAddress == $origin) && !$proxyIsInPrivateRange; |
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$requestProxyData[$proxyIndex]['showlinks'] = $showLinks; |
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$proxyIndex++; |
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} |
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$this->assign("requestProxyData", $requestProxyData); |
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} |
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} |
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} |
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