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Code Issues Releases Wiki Activity

Move open_basedir and safe_mode checks into new setup

Browse source 
Summary: Newer and shinier!

Test Plan: Intentionally misconfigured myself into all three setup failures (safe_mode, open_basedir/fatal, open_basedir/nonfatal).

Reviewers: chad, btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2228

Differential Revision: https://secure.phabricator.com/D4589
This commit is contained in:
epriestley 2013-01-22 16:15:54 -08:00
parent 24845bec42
commit 27ec272057
3 changed files with 115 additions and 84 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/__phutil_library_map__.php
View file

@ -1221,6 +1221,7 @@ phutil_register_library_map(array(
'PhabricatorSetupCheckInvalidConfig' => 'applications/config/check/PhabricatorSetupCheckInvalidConfig.php',
'PhabricatorSetupCheckMail' => 'applications/config/check/PhabricatorSetupCheckMail.php',
'PhabricatorSetupCheckMySQL' => 'applications/config/check/PhabricatorSetupCheckMySQL.php',
'PhabricatorSetupCheckPHPConfig' => 'applications/config/check/PhabricatorSetupCheckPHPConfig.php',
'PhabricatorSetupCheckPath' => 'applications/config/check/PhabricatorSetupCheckPath.php',
'PhabricatorSetupCheckStorage' => 'applications/config/check/PhabricatorSetupCheckStorage.php',
'PhabricatorSetupCheckTimezone' => 'applications/config/check/PhabricatorSetupCheckTimezone.php',
@ -2586,6 +2587,7 @@ phutil_register_library_map(array(
'PhabricatorSetupCheckInvalidConfig' => 'PhabricatorSetupCheck',
'PhabricatorSetupCheckMail' => 'PhabricatorSetupCheck',
'PhabricatorSetupCheckMySQL' => 'PhabricatorSetupCheck',
'PhabricatorSetupCheckPHPConfig' => 'PhabricatorSetupCheck',
'PhabricatorSetupCheckPath' => 'PhabricatorSetupCheck',
'PhabricatorSetupCheckStorage' => 'PhabricatorSetupCheck',
'PhabricatorSetupCheckTimezone' => 'PhabricatorSetupCheck',

113
src/applications/config/check/PhabricatorSetupCheckPHPConfig.php Normal file
View file

@ -0,0 +1,113 @@
<?php
final class PhabricatorSetupCheckPHPConfig extends PhabricatorSetupCheck {
public function getExecutionOrder() {
return 0;
}
protected function executeChecks() {
$safe_mode = ini_get('safe_mode');
if ($safe_mode) {
$message = pht(
"You have 'safe_mode' enabled in your PHP configuration, but ".
"Phabricator will not run in safe mode. Safe mode has been deprecated ".
"in PHP 5.3 and removed in PHP 5.4.".
"\n\n".
"Disable safe mode to continue.");
$this->newIssue('php.safe_mode')
->setIsFatal(true)
->setName(pht('Disable PHP safe_mode'))
->setMessage($message)
->addPHPConfig('safe_mode');
return;
}
$open_basedir = ini_get('open_basedir');
if ($open_basedir) {
// 'open_basedir' restricts which files we're allowed to access with
// file operations. This might be okay -- we don't need to write to
// arbitrary places in the filesystem -- but we need to access certain
// resources. This setting is unlikely to be providing any real measure
// of security so warn even if things look OK.
$failures = array();
try {
$open_libphutil = class_exists('Future');
} catch (Exception $ex) {
$failures[] = $ex->getMessage();
}
try {
$open_arcanist = class_exists('ArcanistDiffParser');
} catch (Exception $ex) {
$failures[] = $ex->getMessage();
}
$open_urandom = false;
try {
Filesystem::readRandomBytes(1);
$open_urandom = true;
} catch (FilesystemException $ex) {
$failures[] = $ex->getMessage();
}
try {
$tmp = new TempFile();
file_put_contents($tmp, '.');
$open_tmp = @fopen((string)$tmp, 'r');
if (!$open_tmp) {
$failures[] = pht(
"Unable to read temporary file '%s'.",
(string)$tmp);
}
} catch (Exception $ex) {
$message = $ex->getMessage();
$dir = sys_get_temp_dir();
$failures[] = pht(
"Unable to open temp files from '%s': %s",
$dir,
$message);
}
$issue = $this->newIssue('php.open_basedir')
->setName(pht('Disable PHP open_basedir'))
->addPHPConfig('open_basedir');
if ($failures) {
$message = pht(
"Your server is configured with 'open_basedir', which prevents ".
"Phabricator from opening files it requires access to.".
"\n\n".
"Disable this setting to continue.".
"\n\n".
"Failures:\n\n%s",
implode("\n\n", $failures));
$issue
->setIsFatal(true)
->setMessage($message);
return;
} else {
$summary = pht(
"You have 'open_basedir' configured in your PHP settings, which ".
"may cause some features to fail.");
$message = pht(
"You have 'open_basedir' configured in your PHP settings. Although ".
"this setting appears permissive enough that Phabricator will ".
"work properly, you may still run into problems because of it.".
"\n\n".
"Consider disabling 'open_basedir'.");
$issue
->setSummary($summary)
->setMessage($message);
}
}
}
}

84
src/infrastructure/PhabricatorSetup.php
View file

@ -15,90 +15,6 @@ final class PhabricatorSetup {
self::writeHeader("CORE CONFIGURATION");
// NOTE: Test this first since other tests depend on the ability to
// execute system commands and will fail if safe_mode is enabled.
$safe_mode = ini_get('safe_mode');
if ($safe_mode) {
self::writeFailure();
self::write(
"Setup failure! You have 'safe_mode' enabled. Phabricator will not ".
"run in safe mode, and it has been deprecated in PHP 5.3 and removed ".
"in PHP 5.4.\n");
return;
} else {
self::write(" okay PHP's deprecated 'safe_mode' is disabled.\n");
}
// NOTE: Also test this early since we can't include files from other
// libraries if this is set strictly.
$open_basedir = ini_get('open_basedir');
if ($open_basedir) {
// 'open_basedir' restricts which files we're allowed to access with
// file operations. This might be okay -- we don't need to write to
// arbitrary places in the filesystem -- but we need to access certain
// resources. This setting is unlikely to be providing any real measure
// of security so warn even if things look OK.
try {
$open_libphutil = class_exists('Future');
} catch (Exception $ex) {
$message = $ex->getMessage();
self::write("Unable to load modules from libphutil: {$message}\n");
$open_libphutil = false;
}
try {
$open_arcanist = class_exists('ArcanistDiffParser');
} catch (Exception $ex) {
$message = $ex->getMessage();
self::write("Unable to load modules from Arcanist: {$message}\n");
$open_arcanist = false;
}
$open_urandom = false;
try {
Filesystem::readRandomBytes(1);
$open_urandom = true;
} catch (FilesystemException $ex) {
self::write($ex->getMessage()."\n");
}
try {
$tmp = new TempFile();
file_put_contents($tmp, '.');
$open_tmp = @fopen((string)$tmp, 'r');
} catch (Exception $ex) {
$message = $ex->getMessage();
$dir = sys_get_temp_dir();
self::write("Unable to open temp files from '{$dir}': {$message}\n");
$open_tmp = false;
}
if (!$open_urandom || !$open_tmp || !$open_libphutil || !$open_arcanist) {
self::writeFailure();
self::write(
"Setup failure! Your server is configured with 'open_basedir' in ".
"php.ini which prevents Phabricator from opening files it needs to ".
"access. Either make the setting more permissive or remove it. It ".
"is unlikely you derive significant security benefits from having ".
"this configured; files outside this directory can still be ".
"accessed through system command execution.");
return;
} else {
self::write(
"[WARN] You have an 'open_basedir' configured in your php.ini. ".
"Although the setting seems permissive enough that Phabricator ".
"will run properly, you may run into problems because of it. It is ".
"unlikely you gain much real security benefit from having it ".
"configured, because the application can still access files outside ".
"the 'open_basedir' by running system commands.\n");
}
} else {
self::write(" okay 'open_basedir' is not set.\n");
}
if (!PhabricatorEnv::getEnvConfig('security.alternate-file-domain')) {
self::write(
"[WARN] You have not configured 'security.alternate-file-domain'. ".