2012-07-19 18:03:10 +02:00
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<?php
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2012-10-15 23:50:04 +02:00
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final class PhameBlogViewController extends PhameController {
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2012-07-19 18:03:10 +02:00
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2012-10-15 23:50:12 +02:00
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private $id;
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2012-07-19 18:03:10 +02:00
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public function willProcessRequest(array $data) {
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2012-10-15 23:50:12 +02:00
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$this->id = $data['id'];
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2012-07-19 18:03:10 +02:00
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}
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public function processRequest() {
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2012-10-15 23:50:04 +02:00
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$request = $this->getRequest();
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$user = $request->getUser();
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2012-07-19 18:03:10 +02:00
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2012-10-15 23:49:52 +02:00
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$blog = id(new PhameBlogQuery())
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->setViewer($user)
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2012-10-15 23:50:12 +02:00
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->withIDs(array($this->id))
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2012-10-15 23:49:52 +02:00
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->executeOne();
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2012-07-19 18:03:10 +02:00
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if (!$blog) {
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return new Aphront404Response();
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}
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2012-10-15 23:50:12 +02:00
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$pager = id(new AphrontCursorPagerView())
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->readFromRequest($request);
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2012-10-15 23:50:04 +02:00
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$posts = id(new PhamePostQuery())
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->setViewer($user)
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->withBlogPHIDs(array($blog->getPHID()))
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2012-10-15 23:50:12 +02:00
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->executeWithCursorPager($pager);
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$nav = $this->renderSideNavFilterView(null);
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2013-09-17 18:12:37 +02:00
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$header = id(new PHUIHeaderView())
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2013-09-19 01:27:24 +02:00
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->setHeader($blog->getName())
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2013-09-19 20:56:58 +02:00
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->setUser($user)
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->setPolicyObject($blog);
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2012-10-15 23:50:12 +02:00
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$actions = $this->renderActions($blog, $user);
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2013-10-11 16:53:56 +02:00
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$properties = $this->renderProperties($blog, $user, $actions);
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2012-10-15 23:50:12 +02:00
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$post_list = $this->renderPostList(
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$posts,
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$user,
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pht('This blog has no visible posts.'));
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2013-05-22 00:32:17 +02:00
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require_celerity_resource('phame-css');
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$post_list = id(new PHUIBoxView())
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->addPadding(PHUI::PADDING_LARGE)
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->addClass('phame-post-list')
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->appendChild($post_list);
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2013-04-14 17:02:29 +02:00
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$crumbs = $this->buildApplicationCrumbs();
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2013-12-19 02:47:34 +01:00
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$crumbs->addTextCrumb($blog->getName(), $this->getApplicationURI());
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2013-04-14 17:02:29 +02:00
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2013-09-29 00:55:38 +02:00
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$object_box = id(new PHUIObjectBoxView())
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->setHeader($header)
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2013-10-11 16:53:56 +02:00
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->addPropertyList($properties);
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2013-09-29 00:55:38 +02:00
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2012-10-15 23:50:12 +02:00
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$nav->appendChild(
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2012-07-19 18:03:10 +02:00
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array(
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2013-04-14 17:02:29 +02:00
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$crumbs,
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2013-09-29 00:55:38 +02:00
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$object_box,
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2012-10-15 23:50:12 +02:00
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$post_list,
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));
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return $this->buildApplicationPage(
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$nav,
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2012-07-19 18:03:10 +02:00
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array(
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2013-04-14 17:02:29 +02:00
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'title' => $blog->getName(),
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2012-07-19 18:03:10 +02:00
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));
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}
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2012-10-15 23:50:12 +02:00
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2013-10-11 16:53:56 +02:00
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private function renderProperties(
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PhameBlog $blog,
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PhabricatorUser $user,
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PhabricatorActionListView $actions) {
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2013-04-12 01:10:09 +02:00
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require_celerity_resource('aphront-tooltip-css');
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Javelin::initBehavior('phabricator-tooltips');
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2013-10-11 16:53:56 +02:00
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$properties = new PHUIPropertyListView();
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$properties->setActionList($actions);
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2012-10-15 23:50:12 +02:00
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$properties->addProperty(
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pht('Skin'),
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2013-01-29 20:01:47 +01:00
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$blog->getSkin());
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2012-10-15 23:50:12 +02:00
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$properties->addProperty(
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pht('Domain'),
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2013-01-29 20:01:47 +01:00
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$blog->getDomain());
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2012-10-15 23:50:12 +02:00
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2013-04-12 01:10:09 +02:00
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$feed_uri = PhabricatorEnv::getProductionURI(
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$this->getApplicationURI('blog/feed/'.$blog->getID().'/'));
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$properties->addProperty(
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pht('Atom URI'),
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javelin_tag('a',
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array(
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'href' => $feed_uri,
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'sigil' => 'has-tooltip',
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'meta' => array(
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'tip' => pht('Atom URI does not support custom domains.'),
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'size' => 320,
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2014-10-07 15:01:04 +02:00
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),
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2013-04-12 01:10:09 +02:00
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),
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$feed_uri));
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2012-10-15 23:50:12 +02:00
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$descriptions = PhabricatorPolicyQuery::renderPolicyDescriptions(
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$user,
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$blog);
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$properties->addProperty(
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pht('Editable By'),
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$descriptions[PhabricatorPolicyCapability::CAN_EDIT]);
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$properties->addProperty(
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pht('Joinable By'),
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$descriptions[PhabricatorPolicyCapability::CAN_JOIN]);
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2012-10-15 23:51:04 +02:00
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$engine = id(new PhabricatorMarkupEngine())
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->setViewer($user)
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->addObject($blog, PhameBlog::MARKUP_FIELD_DESCRIPTION)
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->process();
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$properties->addTextContent(
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2013-01-29 20:01:47 +01:00
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phutil_tag(
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'div',
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array(
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'class' => 'phabricator-remarkup',
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),
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$engine->getOutput($blog, PhameBlog::MARKUP_FIELD_DESCRIPTION)));
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2012-10-15 23:51:04 +02:00
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2012-10-15 23:50:12 +02:00
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return $properties;
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}
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private function renderActions(PhameBlog $blog, PhabricatorUser $user) {
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$actions = id(new PhabricatorActionListView())
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->setObject($blog)
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2013-07-12 20:39:47 +02:00
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->setObjectURI($this->getRequest()->getRequestURI())
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2012-10-15 23:50:12 +02:00
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->setUser($user);
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$can_edit = PhabricatorPolicyFilter::hasCapability(
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$user,
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$blog,
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PhabricatorPolicyCapability::CAN_EDIT);
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$can_join = PhabricatorPolicyFilter::hasCapability(
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$user,
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$blog,
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PhabricatorPolicyCapability::CAN_JOIN);
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$actions->addAction(
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id(new PhabricatorActionView())
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2014-05-12 19:08:32 +02:00
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->setIcon('fa-plus')
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2012-10-16 18:44:43 +02:00
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->setHref($this->getApplicationURI('post/edit/?blog='.$blog->getID()))
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2012-10-15 23:50:12 +02:00
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->setName(pht('Write Post'))
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->setDisabled(!$can_join)
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->setWorkflow(!$can_join));
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$actions->addAction(
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id(new PhabricatorActionView())
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2013-02-20 01:04:54 +01:00
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->setUser($user)
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2014-05-12 19:08:32 +02:00
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->setIcon('fa-globe')
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Don't 302 to an external URI, even after CSRF POST
Summary:
Via HackerOne. This defuses an attack which allows users to steal OAuth tokens through a clever sequence of steps:
- The attacker begins the OAuth workflow and copies the Facebook URL.
- The attacker mutates the URL to use the JS/anchor workflow, and to redirect to `/phame/live/X/` instead of `/login/facebook:facebook.com/`, where `X` is the ID of some blog they control. Facebook isn't strict about paths, so this is allowed.
- The blog has an external domain set (`blog.evil.com`), and the attacker controls that domain.
- The user gets stopped on the "live" controller with credentials in the page anchor (`#access_token=...`) and a message ("This blog has moved...") in a dialog. They click "Continue", which POSTs a CSRF token.
- When a user POSTs a `<form />` with no `action` attribute, the browser retains the page anchor. So visiting `/phame/live/8/#anchor` and clicking the "Continue" button POSTs you to a page with `#anchor` intact.
- Some browsers (including Firefox and Chrome) retain the anchor after a 302 redirect.
- The OAuth credentials are thus preserved when the user reaches `blog.evil.com`, and the attacker's site can read them.
This 302'ing after CSRF post is unusual in Phabricator and unique to Phame. It's not necessary -- instead, just use normal links, which drop anchors.
I'm going to pursue further steps to mitigate this class of attack more thoroughly:
- Ideally, we should render forms with an explicit `action` attribute, but this might be a lot of work. I might render them with `#` if no action is provided. We never expect anchors to survive POST, and it's surprising to me that they do.
- I'm going to blacklist OAuth parameters (like `access_token`) from appearing in GET on all pages except whitelisted pages (login pages). Although it's not important here, I think these could be captured from referrers in some cases. See also T4342.
Test Plan: Browsed all the affected Phame interfaces.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, arice
Differential Revision: https://secure.phabricator.com/D8481
2014-03-11 00:21:07 +01:00
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->setHref($blog->getLiveURI())
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2012-10-15 23:51:30 +02:00
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->setName(pht('View Live')));
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2012-10-15 23:50:12 +02:00
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$actions->addAction(
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id(new PhabricatorActionView())
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2014-05-12 19:08:32 +02:00
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->setIcon('fa-pencil')
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2012-10-15 23:50:12 +02:00
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->setHref($this->getApplicationURI('blog/edit/'.$blog->getID().'/'))
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->setName('Edit Blog')
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->setDisabled(!$can_edit)
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->setWorkflow(!$can_edit));
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$actions->addAction(
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id(new PhabricatorActionView())
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2014-05-12 19:08:32 +02:00
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->setIcon('fa-times')
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2012-10-15 23:50:12 +02:00
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->setHref($this->getApplicationURI('blog/delete/'.$blog->getID().'/'))
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->setName('Delete Blog')
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->setDisabled(!$can_edit)
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->setWorkflow(true));
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return $actions;
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}
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2012-07-19 18:03:10 +02:00
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}
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