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PhrictionRemarkupRule.php
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Thu, May 15, 23:07

PhrictionRemarkupRule.php
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<?php
final class PhrictionRemarkupRule extends PhutilRemarkupRule {
const KEY_RULE_PHRICTION_LINK = 'phriction.link';
public function getPriority() {
return 175.0;
}
public function apply($text) {
return preg_replace_callback(
'@\B\\[\\[([^|\\]]+)(?:\\|([^\\]]+))?\\]\\]\B@U',
array($this, 'markupDocumentLink'),
$text);
}
public function markupDocumentLink(array $matches) {
$link = trim($matches[1]);
// Handle relative links.
if ((substr($link, 0, 2) === './') || (substr($link, 0, 3) === '../')) {
$base = null;
$context = $this->getEngine()->getConfig('contextObject');
if ($context !== null && $context instanceof PhrictionContent) {
// Handle content when it's being rendered in document view.
$base = $context->getSlug();
}
if ($context !== null && is_array($context) &&
idx($context, 'phriction.isPreview')) {
// Handle content when it's a preview for the Phriction editor.
$base = idx($context, 'phriction.slug');
}
if ($base !== null) {
$base_parts = explode('/', rtrim($base, '/'));
$rel_parts = explode('/', rtrim($link, '/'));
foreach ($rel_parts as $part) {
if ($part === '.') {
// Consume standalone dots in a relative path, and do
// nothing with them.
} else if ($part === '..') {
if (count($base_parts) > 0) {
array_pop($base_parts);
}
} else {
array_push($base_parts, $part);
}
}
$link = implode('/', $base_parts).'/';
}
}
$name = trim(idx($matches, 2, ''));
if (empty($matches[2])) {
$name = null;
}
// Link is now used for slug detection, so append a slash if one
// is needed.
$link = rtrim($link, '/').'/';
$engine = $this->getEngine();
$token = $engine->storeText('x');
$metadata = $engine->getTextMetadata(
self::KEY_RULE_PHRICTION_LINK,
array());
$metadata[] = array(
'token' => $token,
'link' => $link,
'explicitName' => $name,
);
$engine->setTextMetadata(self::KEY_RULE_PHRICTION_LINK, $metadata);
return $token;
}
public function didMarkupText() {
$engine = $this->getEngine();
$metadata = $engine->getTextMetadata(
self::KEY_RULE_PHRICTION_LINK,
array());
if (!$metadata) {
return;
}
$slugs = ipull($metadata, 'link');
// We have to make two queries here to distinguish between
// documents the user can't see, and documents that don't
// exist.
$visible_documents = id(new PhrictionDocumentQuery())
->setViewer($engine->getConfig('viewer'))
->withSlugs($slugs)
->needContent(true)
->execute();
$existant_documents = id(new PhrictionDocumentQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withSlugs($slugs)
->execute();
$visible_documents = mpull($visible_documents, null, 'getSlug');
$existant_documents = mpull($existant_documents, null, 'getSlug');
foreach ($metadata as $spec) {
$link = $spec['link'];
$name = $spec['explicitName'];
$class = 'phriction-link';
if (idx($existant_documents, $link) === null) {
// The target document doesn't exist.
if ($name === null) {
$name = explode('/', trim($link, '/'));
$name = end($name);
}
$class = 'phriction-link-missing';
} else if (idx($visible_documents, $link) === null) {
// The document exists, but the user can't see it.
if ($name === null) {
$name = explode('/', trim($link, '/'));
$name = end($name);
}
$class = 'phriction-link-lock';
} else {
if ($name === null) {
// Use the title of the document if no name is set.
$name = $visible_documents[$link]
->getContent()
->getTitle();
}
}
$uri = new PhutilURI($link);
$slug = $uri->getPath();
$fragment = $uri->getFragment();
$slug = PhabricatorSlug::normalize($slug);
$slug = PhrictionDocument::getSlugURI($slug);
$href = (string)id(new PhutilURI($slug))->setFragment($fragment);
$text_mode = $this->getEngine()->isTextMode();
$mail_mode = $this->getEngine()->isHTMLMailMode();
if ($this->getEngine()->getState('toc')) {
$text = $name;
} else if ($text_mode || $mail_mode) {
return PhabricatorEnv::getProductionURI($href);
} else {
if ($class === 'phriction-link-lock') {
$name = array(
$this->newTag(
'i',
array(
'class' => 'phui-icon-view phui-font-fa fa-lock',
),
''),
' ',
$name,
);
}
$text = $this->newTag(
'a',
array(
'href' => $href,
'class' => $class,
),
$name);
$this->getEngine()->overwriteStoredText($spec['token'], $text);
}
}
}
}

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