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PhabricatorMacroNameTransaction.php
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Created
Fri, Apr 25, 12:59

PhabricatorMacroNameTransaction.php
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<?php
final class PhabricatorMacroNameTransaction
extends PhabricatorMacroTransactionType {
const TRANSACTIONTYPE = 'macro:name';
public function generateOldValue($object) {
return $object->getName();
}
public function applyInternalEffects($object, $value) {
$object->setName($value);
}
public function getTitle() {
return pht(
'%s renamed this macro from %s to %s.',
$this->renderAuthor(),
$this->renderOldValue(),
$this->renderNewValue());
}
public function getTitleForFeed() {
return pht(
'%s renamed %s from %s to %s.',
$this->renderAuthor(),
$this->renderObject(),
$this->renderOldValue(),
$this->renderNewValue());
}
public function validateTransactions($object, array $xactions) {
$errors = array();
$viewer = $this->getActor();
if ($this->isEmptyTextTransaction($object->getName(), $xactions)) {
$errors[] = $this->newRequiredError(
pht('Macros must have a name.'));
return $errors;
}
$max_length = $object->getColumnMaximumByteLength('name');
foreach ($xactions as $xaction) {
$old_value = $this->generateOldValue($object);
$new_value = $xaction->getNewValue();
$new_length = strlen($new_value);
if ($new_length > $max_length) {
$errors[] = $this->newInvalidError(
pht('The name can be no longer than %s characters.',
new PhutilNumber($max_length)));
}
if (!self::isValidMacroName($new_value)) {
// This says "emoji", but the actual rule we implement is "all other
// unicode characters are also fine".
$errors[] = $this->newInvalidError(
pht(
'Macro name "%s" be: at least three characters long; and contain '.
'only lowercase letters, digits, hyphens, colons, underscores, '.
'and emoji; and not be composed entirely of latin symbols.',
$new_value),
$xaction);
}
// Check name is unique when updating / creating
if ($old_value != $new_value) {
$macro = id(new PhabricatorMacroQuery())
->setViewer($viewer)
->withNames(array($new_value))
->executeOne();
if ($macro) {
$errors[] = $this->newInvalidError(
pht('Macro "%s" already exists.', $new_value));
}
}
}
return $errors;
}
public static function isValidMacroName($name) {
if (preg_match('/^[:_-]+\z/', $name)) {
return false;
}
// Accept trivial macro names.
if (preg_match('/^[a-z0-9:_-]{3,}\z/', $name)) {
return true;
}
// Reject names with fewer than 3 glyphs.
$length = phutil_utf8v_combined($name);
if (count($length) < 3) {
return false;
}
// Check character-by-character for any symbols that we don't want.
$characters = phutil_utf8v($name);
foreach ($characters as $character) {
if (ord($character[0]) > 0x7F) {
continue;
}
if (preg_match('/^[^a-z0-9:_-]/', $character)) {
return false;
}
}
return true;
}
}

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