PhameLiveController.php
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	<?php

	abstract class PhameLiveController extends PhameController {

	private $isExternal;
	private $isLive;
	private $blog;
	private $post;

	public function shouldAllowPublic() {
	return true;
	}

	protected function getIsExternal() {
	return $this->isExternal;
	}

	protected function getIsLive() {
	return $this->isLive;
	}

	protected function getBlog() {
	return $this->blog;
	}

	protected function getPost() {
	return $this->post;
	}

	protected function setupLiveEnvironment() {
	$request = $this->getRequest();
	$viewer = $this->getViewer();

	$site = $request->getSite();
	$blog_id = $request->getURIData('blogID');
	$post_id = $request->getURIData('id');

	if ($site instanceof PhameBlogSite) {
	// This is a live page on a custom domain. We already looked up the blog
	// in the Site handler by examining the domain, so we don't need to do
	// more lookups.

	$blog = $site->getBlog();
	$is_external = true;
	$is_live = true;
	} else if ($blog_id) {
	// This is a blog detail view, an internal blog live view, or an
	// internal post live view The internal post detail view is handled
	// below.

	$is_external = false;
	if ($request->getURIData('live')) {
	$is_live = true;
	} else {
	$is_live = false;
	}

	$blog_query = id(new PhameBlogQuery())
	->setViewer($viewer)
	->needProfileImage(true)
	->needHeaderImage(true)
	->withIDs(array($blog_id));

	// If this is a live view, only show active blogs.
	if ($is_live) {
	$blog_query->withStatuses(
	array(
	PhameBlog::STATUS_ACTIVE,
	));
	}

	$blog = $blog_query->executeOne();
	if (!$blog) {
	$this->isExternal = $is_external;
	$this->isLive = $is_live;
	return new Aphront404Response();
	}

	} else {
	// This is a post detail page, so we'll figure out the blog by loading
	// the post first.
	$is_external = false;
	$is_live = false;
	$blog = null;
	}

	$this->isExternal = $is_external;
	$this->isLive = $is_live;

	if (phutil_nonempty_string($post_id)) {
	$post_query = id(new PhamePostQuery())
	->setViewer($viewer)
	->needHeaderImage(true)
	->withIDs(array($post_id));

	// Only show published posts on external domains.
	if ($is_external) {
	$post_query->withVisibility(
	array(PhameConstants::VISIBILITY_PUBLISHED));
	}

	$post = $post_query->executeOne();
	if (!$post) {
	// Not a valid Post
	$this->blog = $blog;
	return new Aphront404Response();
	}

	// If this is a post detail page, the URI didn't come with a blog ID,
	// so fill that in.
	if (!$blog) {
	$blog = $post->getBlog();
	}
	} else {
	$post = null;
	}

	$this->blog = $blog;
	$this->post = $post;

	// If we have a post, canonicalize the URI to the post's current slug and
	// redirect the user if it isn't correct. Likewise, canonicalize the URI
	// if the blog ID is wrong. See T13353.
	if ($post) {
	$slug = $request->getURIData('slug');

	$wrong_slug = ($post->getSlug() !== $slug);
	$wrong_blog = ($post->getBlog()->getID() !== $blog->getID());

	if ($wrong_slug \|\| $wrong_blog) {
	if ($is_live) {
	if ($is_external) {
	$uri = $post->getExternalLiveURI();
	} else {
	$uri = $post->getInternalLiveURI();
	}
	} else {
	$uri = $post->getViewURI();
	}

	$response = id(new AphrontRedirectResponse())
	->setURI($uri);

	if ($is_external) {
	$response->setIsExternal(true);
	}

	return $response;
	}
	}

	return null;
	}

	protected function buildApplicationCrumbs() {
	$blog = $this->getBlog();
	$post = $this->getPost();

	$is_live = $this->getIsLive();
	$is_external = $this->getIsExternal();

	// If this is an external view, don't put the "Phame" crumb or the
	// "Blogs" crumb into the crumbs list.
	if ($is_external) {
	$crumbs = new PHUICrumbsView();
	// Link back to parent site
	if ($blog->getParentSite() && $blog->getParentDomain()) {
	$crumbs->addTextCrumb(
	$blog->getParentSite(),
	$blog->getExternalParentURI());
	}
	} else {
	$crumbs = parent::buildApplicationCrumbs();
	$crumbs->addTextCrumb(
	pht('Blogs'),
	$this->getApplicationURI('blog/'));
	}

	$crumbs->setBorder(true);

	if ($blog) {
	if ($post) {
	if ($is_live) {
	if ($is_external) {
	$blog_uri = $blog->getExternalLiveURI();
	} else {
	$blog_uri = $blog->getInternalLiveURI();
	}
	} else {
	$blog_uri = $blog->getViewURI();
	}
	} else {
	$blog_uri = null;
	}

	$crumbs->addTextCrumb($blog->getName(), $blog_uri);
	}

	if ($post) {
	if (!$is_external) {
	$crumbs->addTextCrumb('J'.$post->getID());
	}
	}

	return $crumbs;
	}

	public function willSendResponse(AphrontResponse $response) {
	if ($this->getIsExternal()) {
	if ($response instanceof Aphront404Response) {
	$page = $this->newPage()
	->setCrumbs($this->buildApplicationCrumbs());

	$response = id(new Phame404Response())
	->setPage($page);
	}
	}

	return parent::willSendResponse($response);
	}

	public function newPage() {
	$page = parent::newPage();

	if ($this->getIsLive()) {
	$page
	->addClass('phame-live-view')
	->setShowChrome(false)
	->setShowFooter(false);
	}

	return $page;
	}

	}

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