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PhabricatorApplicationTransactionCommentEditor.php
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Tue, Dec 24, 18:09

PhabricatorApplicationTransactionCommentEditor.php
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<?php
final class PhabricatorApplicationTransactionCommentEditor
extends PhabricatorEditor {
private $contentSource;
private $actingAsPHID;
public function setActingAsPHID($acting_as_phid) {
$this->actingAsPHID = $acting_as_phid;
return $this;
}
public function getActingAsPHID() {
if ($this->actingAsPHID) {
return $this->actingAsPHID;
}
return $this->getActor()->getPHID();
}
public function setContentSource(PhabricatorContentSource $content_source) {
$this->contentSource = $content_source;
return $this;
}
public function getContentSource() {
return $this->contentSource;
}
/**
* Edit a transaction's comment. This method effects the required create,
* update or delete to set the transaction's comment to the provided comment.
*/
public function applyEdit(
PhabricatorApplicationTransaction $xaction,
PhabricatorApplicationTransactionComment $comment) {
$this->validateEdit($xaction, $comment);
$actor = $this->requireActor();
$comment->setContentSource($this->getContentSource());
$comment->setAuthorPHID($this->getActingAsPHID());
// TODO: This needs to be more sophisticated once we have meta-policies.
$comment->setViewPolicy(PhabricatorPolicies::POLICY_PUBLIC);
$comment->setEditPolicy($this->getActingAsPHID());
$file_phids = PhabricatorMarkupEngine::extractFilePHIDsFromEmbeddedFiles(
$actor,
array(
$comment->getContent(),
));
$xaction->openTransaction();
$xaction->beginReadLocking();
if ($xaction->getID()) {
$xaction->reload();
}
$new_version = $xaction->getCommentVersion() + 1;
$comment->setCommentVersion($new_version);
$comment->setTransactionPHID($xaction->getPHID());
$comment->save();
$xaction->setCommentVersion($new_version);
$xaction->setCommentPHID($comment->getPHID());
$xaction->setViewPolicy($comment->getViewPolicy());
$xaction->setEditPolicy($comment->getEditPolicy());
$xaction->save();
$xaction->attachComment($comment);
// For comment edits, we need to make sure there are no automagical
// transactions like adding mentions or projects.
if ($new_version > 1) {
$object = id(new PhabricatorObjectQuery())
->withPHIDs(array($xaction->getObjectPHID()))
->setViewer($this->getActor())
->executeOne();
if ($object &&
$object instanceof PhabricatorApplicationTransactionInterface) {
$editor = $object->getApplicationTransactionEditor();
$editor->setActor($this->getActor());
$support_xactions = $editor->getExpandedSupportTransactions(
$object,
$xaction);
if ($support_xactions) {
$editor
->setContentSource($this->getContentSource())
->setContinueOnNoEffect(true)
->applyTransactions($object, $support_xactions);
}
}
}
$xaction->endReadLocking();
$xaction->saveTransaction();
// Add links to any files newly referenced by the edit.
if ($file_phids) {
$editor = new PhabricatorEdgeEditor();
foreach ($file_phids as $file_phid) {
$editor->addEdge(
$xaction->getObjectPHID(),
PhabricatorObjectHasFileEdgeType::EDGECONST ,
$file_phid);
}
$editor->save();
}
return $this;
}
/**
* Validate that the edit is permissible, and the actor has permission to
* perform it.
*/
private function validateEdit(
PhabricatorApplicationTransaction $xaction,
PhabricatorApplicationTransactionComment $comment) {
if (!$xaction->getPHID()) {
throw new Exception(
'Transaction must have a PHID before calling applyEdit()!');
}
$type_comment = PhabricatorTransactions::TYPE_COMMENT;
if ($xaction->getTransactionType() == $type_comment) {
if ($comment->getPHID()) {
throw new Exception(
'Transaction comment must not yet have a PHID!');
}
}
if (!$this->getContentSource()) {
throw new PhutilInvalidStateException('applyEdit');
}
$actor = $this->requireActor();
PhabricatorPolicyFilter::requireCapability(
$actor,
$xaction,
PhabricatorPolicyCapability::CAN_VIEW);
if ($comment->getIsRemoved() && $actor->getIsAdmin()) {
// NOTE: Administrators can remove comments by any user, and don't need
// to pass the edit check.
} else {
PhabricatorPolicyFilter::requireCapability(
$actor,
$xaction,
PhabricatorPolicyCapability::CAN_EDIT);
}
}
}

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