public function execute()
{
global $wgUser, $wgCodeReviewMaxDiffSize;
// Before doing anything at all, let's check permissions
if (!$wgUser->isAllowed('codereview-use')) {
$this->dieUsage('You don\'t have permission to view code diffs', 'permissiondenied');
}
$params = $this->extractRequestParams();
$repo = CodeRepository::newFromName($params['repo']);
if (!$repo) {
$this->dieUsage("Invalid repo ``{$params['repo']}''", 'invalidrepo');
}
$lastStoredRev = $repo->getLastStoredRev();
if ($params['rev'] > $lastStoredRev) {
$this->dieUsage("There is no revision with ID {$params['rev']}", 'nosuchrev');
}
$diff = $repo->getDiff($params['rev']);
if (!is_string($diff)) {
// FIXME: Are we sure we don't want to throw an error here?
$html = 'Failed to load diff. Error message: ' . CodeRepository::getDiffErrorMessage($diff);
} elseif (strlen($diff) > $wgCodeReviewMaxDiffSize) {
$html = 'Diff too large.';
} else {
$hilite = new CodeDiffHighlighter();
$html = $hilite->render($diff);
}
$data = array('repo' => $params['repo'], 'id' => $params['rev'], 'diff' => $html);
$this->getResult()->addValue('code', 'rev', $data);
}
/**
* @return string
*/
protected function formatDiff()
{
global $wgEnableAPI, $wgCodeReviewMaxDiffSize;
// Asynchronous diff loads will require the API
// And JS in the client, but tough shit eh? ;)
$deferDiffs = $wgEnableAPI;
if ($this->mSkipCache) {
// We're purging the cache on purpose, probably
// because the cached data was corrupt.
$cache = 'skipcache';
} elseif ($deferDiffs) {
// If data is already cached, we'll take it now;
// otherwise defer the load to an AJAX request.
// This lets the page be manipulable even if the
// SVN connection is slow or uncooperative.
$cache = 'cached';
} else {
$cache = '';
}
$diff = $this->mRepo->getDiff($this->mRev->getId(), $cache);
if (is_integer($diff) && $deferDiffs) {
// We'll try loading it by AJAX...
return $this->stubDiffLoader();
} elseif (strlen($diff) > $wgCodeReviewMaxDiffSize) {
return htmlspecialchars(wfMsg('code-rev-diff-too-large'));
} else {
$hilite = new CodeDiffHighlighter();
return $hilite->render($diff);
}
}
/**
* @dataProvider provideUnifiedDiffChunksDelimiters
*/
function testParseChunkDelimiters($expected, $delimiter)
{
$this->assertEquals($expected, CodeDiffHighlighter::parseChunkDelimiter($delimiter));
}
