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PhabricatorMentionRemarkupRule.php
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Fri, Aug 30, 04:23

PhabricatorMentionRemarkupRule.php
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<?php
final class PhabricatorMentionRemarkupRule extends PhutilRemarkupRule {
const KEY_RULE_MENTION = 'rule.mention';
const KEY_RULE_MENTION_ORIGINAL = 'rule.mention.original';
const KEY_MENTIONED = 'phabricator.mentioned-user-phids';
// NOTE: The negative lookbehind prevents matches like "mail@lists", while
// allowing constructs like "@tomo/@mroch". Since we now allow periods in
// usernames, we can't resonably distinguish that "@company.com" isn't a
// username, so we'll incorrectly pick it up, but there's little to be done
// about that. We forbid terminal periods so that we can correctly capture
// "@joe" instead of "@joe." in "Hey, @joe.".
//
// We disallow "@@joe" because it creates a false positive in the common
// construction "l@@k", made popular by eBay.
const REGEX = '/(?<!\w|@)@([a-zA-Z0-9._-]*[a-zA-Z0-9_-])/';
public function apply($text) {
return preg_replace_callback(
self::REGEX,
array($this, 'markupMention'),
$text);
}
protected function markupMention(array $matches) {
$engine = $this->getEngine();
if ($engine->isTextMode()) {
return $engine->storeText($matches[0]);
}
$token = $engine->storeText('');
// Store the original text exactly so we can preserve casing if it doesn't
// resolve into a username.
$original_key = self::KEY_RULE_MENTION_ORIGINAL;
$original = $engine->getTextMetadata($original_key, array());
$original[$token] = $matches[1];
$engine->setTextMetadata($original_key, $original);
$metadata_key = self::KEY_RULE_MENTION;
$metadata = $engine->getTextMetadata($metadata_key, array());
$username = strtolower($matches[1]);
if (empty($metadata[$username])) {
$metadata[$username] = array();
}
$metadata[$username][] = $token;
$engine->setTextMetadata($metadata_key, $metadata);
return $token;
}
public function didMarkupText() {
$engine = $this->getEngine();
$metadata_key = self::KEY_RULE_MENTION;
$metadata = $engine->getTextMetadata($metadata_key, array());
if (empty($metadata)) {
// No mentions, or we already processed them.
return;
}
$original_key = self::KEY_RULE_MENTION_ORIGINAL;
$original = $engine->getTextMetadata($original_key, array());
$usernames = array_keys($metadata);
$users = id(new PhabricatorPeopleQuery())
->setViewer($this->getEngine()->getConfig('viewer'))
->withUsernames($usernames)
->needAvailability(true)
->execute();
$actual_users = array();
$mentioned_key = self::KEY_MENTIONED;
$mentioned = $engine->getTextMetadata($mentioned_key, array());
foreach ($users as $row) {
$actual_users[strtolower($row->getUserName())] = $row;
$mentioned[$row->getPHID()] = $row->getPHID();
}
$engine->setTextMetadata($mentioned_key, $mentioned);
$context_object = $engine->getConfig('contextObject');
foreach ($metadata as $username => $tokens) {
$exists = isset($actual_users[$username]);
$user_has_no_permission = false;
if ($exists) {
$user = $actual_users[$username];
Javelin::initBehavior('phui-hovercards');
// Check if the user has view access to the object she was mentioned in
if ($context_object
&& $context_object instanceof PhabricatorPolicyInterface) {
if (!PhabricatorPolicyFilter::hasCapability(
$user,
$context_object,
PhabricatorPolicyCapability::CAN_VIEW)) {
// User mentioned has no permission to this object
$user_has_no_permission = true;
}
}
$user_href = '/p/'.$user->getUserName().'/';
if ($engine->isHTMLMailMode()) {
$user_href = PhabricatorEnv::getProductionURI($user_href);
if ($user_has_no_permission) {
$colors = '
border-color: #92969D;
color: #92969D;
background-color: #F7F7F7;';
} else {
$colors = '
border-color: #f1f7ff;
color: #19558d;
background-color: #f1f7ff;';
}
$tag = phutil_tag(
'a',
array(
'href' => $user_href,
'style' => $colors.'
border: 1px solid transparent;
border-radius: 3px;
font-weight: bold;
padding: 0 4px;',
),
'@'.$user->getUserName());
} else {
if ($engine->getConfig('uri.full')) {
$user_href = PhabricatorEnv::getURI($user_href);
}
$tag = id(new PHUITagView())
->setType(PHUITagView::TYPE_PERSON)
->setPHID($user->getPHID())
->setName('@'.$user->getUserName())
->setHref($user_href);
if ($user_has_no_permission) {
$tag->addClass('phabricator-remarkup-mention-nopermission');
}
if ($user->getIsDisabled()) {
$tag->setDotColor(PHUITagView::COLOR_GREY);
} else if (!$user->isResponsive()) {
$tag->setDotColor(PHUITagView::COLOR_VIOLET);
} else {
if ($user->getAwayUntil()) {
$away = PhabricatorCalendarEventInvitee::AVAILABILITY_AWAY;
if ($user->getDisplayAvailability() == $away) {
$tag->setDotColor(PHUITagView::COLOR_RED);
} else {
$tag->setDotColor(PHUITagView::COLOR_ORANGE);
}
}
}
}
foreach ($tokens as $token) {
$engine->overwriteStoredText($token, $tag);
}
} else {
// NOTE: The structure here is different from the 'exists' branch,
// because we want to preserve the original text capitalization and it
// may differ for each token.
foreach ($tokens as $token) {
$tag = phutil_tag(
'span',
array(
'class' => 'phabricator-remarkup-mention-unknown',
),
'@'.idx($original, $token, $username));
$engine->overwriteStoredText($token, $tag);
}
}
}
// Don't re-process these mentions.
$engine->setTextMetadata($metadata_key, array());
}
}

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