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index.php
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Mon, May 6, 05:47

index.php
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<?php
phabricator_startup();
$fatal_exception = null;
try {
PhabricatorStartup::beginStartupPhase('libraries');
PhabricatorStartup::loadCoreLibraries();
PhabricatorStartup::beginStartupPhase('purge');
PhabricatorCaches::destroyRequestCache();
PhabricatorStartup::beginStartupPhase('sink');
$sink = new AphrontPHPHTTPSink();
// PHP introduced a "Throwable" interface in PHP 7 and began making more
// runtime errors throw as "Throwable" errors. This is generally good, but
// makes top-level exception handling that is compatible with both PHP 5
// and PHP 7 a bit tricky.
// In PHP 5, "Throwable" does not exist, so "catch (Throwable $ex)" catches
// nothing.
// In PHP 7, various runtime conditions raise an Error which is a Throwable
// but NOT an Exception, so "catch (Exception $ex)" will not catch them.
// To cover both cases, we "catch (Exception $ex)" to catch everything in
// PHP 5, and most things in PHP 7. Then, we "catch (Throwable $ex)" to catch
// everything else in PHP 7. For the most part, we only need to do this at
// the top level.
$main_exception = null;
try {
PhabricatorStartup::beginStartupPhase('run');
AphrontApplicationConfiguration::runHTTPRequest($sink);
} catch (Exception $ex) {
$main_exception = $ex;
} catch (Throwable $ex) {
$main_exception = $ex;
}
if ($main_exception) {
$response_exception = null;
try {
$response = new AphrontUnhandledExceptionResponse();
$response->setException($main_exception);
$response->setShowStackTraces($sink->getShowStackTraces());
PhabricatorStartup::endOutputCapture();
$sink->writeResponse($response);
} catch (Exception $ex) {
$response_exception = $ex;
} catch (Throwable $ex) {
$response_exception = $ex;
}
// If we hit a rendering exception, ignore it and throw the original
// exception. It is generally more interesting and more likely to be
// the root cause.
if ($response_exception) {
throw $main_exception;
}
}
} catch (Exception $ex) {
$fatal_exception = $ex;
} catch (Throwable $ex) {
$fatal_exception = $ex;
}
if ($fatal_exception) {
PhabricatorStartup::didEncounterFatalException(
'Core Exception',
$fatal_exception,
false);
}
function phabricator_startup() {
// Load the PhabricatorStartup class itself.
$t_startup = microtime(true);
$root = dirname(dirname(__FILE__));
require_once $root.'/support/startup/PhabricatorStartup.php';
// Load client limit classes so the preamble can configure limits.
require_once $root.'/support/startup/PhabricatorClientLimit.php';
require_once $root.'/support/startup/PhabricatorClientRateLimit.php';
require_once $root.'/support/startup/PhabricatorClientConnectionLimit.php';
// If the preamble script exists, load it.
$t_preamble = microtime(true);
$preamble_path = $root.'/support/preamble.php';
if (file_exists($preamble_path)) {
require_once $preamble_path;
}
$t_hook = microtime(true);
PhabricatorStartup::didStartup($t_startup);
PhabricatorStartup::recordStartupPhase('startup.init', $t_startup);
PhabricatorStartup::recordStartupPhase('preamble', $t_preamble);
PhabricatorStartup::recordStartupPhase('hook', $t_hook);
}

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