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phorge/src/applications/auth/provider/PhabricatorAuthProviderOAuth.php
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PhabricatorAuthProviderOAuth.php
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<?php
abstract class PhabricatorAuthProviderOAuth extends PhabricatorAuthProvider {
protected $adapter;
abstract protected function newOAuthAdapter();
public function getDescriptionForCreate() {
return pht('Configure %s OAuth.', $this->getProviderName());
}
public function getAdapter() {
if (!$this->adapter) {
$adapter = $this->newOAuthAdapter();
$this->adapter = $adapter;
$this->configureAdapter($adapter);
}
return $this->adapter;
}
protected function configureAdapter(PhutilAuthAdapterOAuth $adapter) {
$config = $this->getProviderConfig();
$adapter->setClientID($config->getProperty(self::PROPERTY_APP_ID));
$adapter->setClientSecret(
new PhutilOpaqueEnvelope(
$config->getProperty(self::PROPERTY_APP_SECRET)));
$adapter->setRedirectURI($this->getLoginURI());
return $adapter;
}
public function isLoginFormAButton() {
return true;
}
protected function renderLoginForm(AphrontRequest $request, $mode) {
$adapter = $this->getAdapter();
$adapter->setState(PhabricatorHash::digest($request->getCookie('phcid')));
$attributes = array(
'method' => 'GET',
'uri' => $adapter->getAuthenticateURI(),
);
return $this->renderStandardLoginButton($request, $mode, $attributes);
}
public function processLoginRequest(
PhabricatorAuthLoginController $controller) {
$request = $controller->getRequest();
$adapter = $this->getAdapter();
$account = null;
$response = null;
$error = $request->getStr('error');
if ($error) {
$response = $controller->buildProviderErrorResponse(
$this,
pht(
'The OAuth provider returned an error: %s',
$error));
return array($account, $response);
}
$code = $request->getStr('code');
if (!strlen($code)) {
$response = $controller->buildProviderErrorResponse(
$this,
pht(
'The OAuth provider did not return a "code" parameter in its '.
'response.'));
return array($account, $response);
}
if ($adapter->supportsStateParameter()) {
$phcid = $request->getCookie('phcid');
if (!strlen($phcid)) {
$response = $controller->buildProviderErrorResponse(
$this,
pht(
'Your browser did not submit a "phcid" cookie with OAuth state '.
'information in the request. Check that cookies are enabled. '.
'If this problem persists, you may need to clear your cookies.'));
}
$state = $request->getStr('state');
$expect = PhabricatorHash::digest($phcid);
if ($state !== $expect) {
$response = $controller->buildProviderErrorResponse(
$this,
pht(
'The OAuth provider did not return the correct "state" parameter '.
'in its response. If this problem persists, you may need to clear '.
'your cookies.'));
}
}
$adapter->setCode($code);
// NOTE: As a side effect, this will cause the OAuth adapter to request
// an access token.
try {
$account_id = $adapter->getAccountID();
} catch (Exception $ex) {
// TODO: Handle this in a more user-friendly way.
throw $ex;
}
if (!strlen($account_id)) {
$response = $controller->buildProviderErrorResponse(
$this,
pht(
'The OAuth provider failed to retrieve an account ID.'));
return array($account, $response);
}
return array($this->loadOrCreateAccount($account_id), $response);
}
const PROPERTY_APP_ID = 'oauth:app:id';
const PROPERTY_APP_SECRET = 'oauth:app:secret';
public function readFormValuesFromProvider() {
$config = $this->getProviderConfig();
$id = $config->getProperty(self::PROPERTY_APP_ID);
$secret = $config->getProperty(self::PROPERTY_APP_SECRET);
return array(
self::PROPERTY_APP_ID => $id,
self::PROPERTY_APP_SECRET => $secret,
);
}
public function readFormValuesFromRequest(AphrontRequest $request) {
return array(
self::PROPERTY_APP_ID => $request->getStr(self::PROPERTY_APP_ID),
self::PROPERTY_APP_SECRET => $request->getStr(self::PROPERTY_APP_SECRET),
);
}
public function processEditForm(
AphrontRequest $request,
array $values) {
$errors = array();
$issues = array();
$key_id = self::PROPERTY_APP_ID;
$key_secret = self::PROPERTY_APP_SECRET;
if (!strlen($values[$key_id])) {
$errors[] = pht('Application ID is required.');
$issues[$key_id] = pht('Required');
}
if (!strlen($values[$key_secret])) {
$errors[] = pht('Application secret is required.');
$issues[$key_secret] = pht('Required');
}
// If the user has not changed the secret, don't update it (that is,
// don't cause a bunch of "****" to be written to the database).
if (preg_match('/^[*]+$/', $values[$key_secret])) {
unset($values[$key_secret]);
}
return array($errors, $issues, $values);
}
public function extendEditForm(
AphrontRequest $request,
AphrontFormView $form,
array $values,
array $issues) {
$key_id = self::PROPERTY_APP_ID;
$key_secret = self::PROPERTY_APP_SECRET;
$v_id = $values[$key_id];
$v_secret = $values[$key_secret];
if ($v_secret) {
$v_secret = str_repeat('*', strlen($v_secret));
}
$e_id = idx($issues, $key_id, $request->isFormPost() ? null : true);
$e_secret = idx($issues, $key_secret, $request->isFormPost() ? null : true);
$form
->appendChild(
id(new AphrontFormTextControl())
->setLabel(pht('OAuth App ID'))
->setName($key_id)
->setValue($v_id)
->setError($e_id))
->appendChild(
id(new AphrontFormPasswordControl())
->setLabel(pht('OAuth App Secret'))
->setName($key_secret)
->setValue($v_secret)
->setError($e_secret));
}
public function renderConfigPropertyTransactionTitle(
PhabricatorAuthProviderConfigTransaction $xaction) {
$author_phid = $xaction->getAuthorPHID();
$old = $xaction->getOldValue();
$new = $xaction->getNewValue();
$key = $xaction->getMetadataValue(
PhabricatorAuthProviderConfigTransaction::PROPERTY_KEY);
switch ($key) {
case self::PROPERTY_APP_ID:
if (strlen($old)) {
return pht(
'%s updated the OAuth application ID for this provider from '.
'"%s" to "%s".',
$xaction->renderHandleLink($author_phid),
$old,
$new);
} else {
return pht(
'%s set the OAuth application ID for this provider to '.
'"%s".',
$xaction->renderHandleLink($author_phid),
$new);
}
case self::PROPERTY_APP_SECRET:
if (strlen($old)) {
return pht(
'%s updated the OAuth application secret for this provider.',
$xaction->renderHandleLink($author_phid));
} else {
return pht(
'%s set the OAuth application seceret for this provider.',
$xaction->renderHandleLink($author_phid));
}
}
return parent::renderConfigPropertyTransactionTitle($xaction);
}
protected function willSaveAccount(PhabricatorExternalAccount $account) {
parent::willSaveAccount($account);
$this->synchronizeOAuthAccount($account);
}
protected function synchronizeOAuthAccount(
PhabricatorExternalAccount $account) {
$adapter = $this->getAdapter();
$oauth_token = $adapter->getAccessToken();
$account->setProperty('oauth.token.access', $oauth_token);
if ($adapter->supportsTokenRefresh()) {
$refresh_token = $adapter->getRefreshToken();
$account->setProperty('oauth.token.refresh', $refresh_token);
} else {
$account->setProperty('oauth.token.refresh', null);
}
$expires = $adapter->getAccessTokenExpires();
$account->setProperty('oauth.token.access.expires', $expires);
}
public function getOAuthAccessToken(
PhabricatorExternalAccount $account,
$force_refresh = false) {
if ($account->getProviderKey() !== $this->getProviderKey()) {
throw new Exception("Account does not match provider!");
}
if (!$force_refresh) {
$access_expires = $account->getProperty('oauth.token.access.expires');
$access_token = $account->getProperty('oauth.token.access');
// Don't return a token with fewer than this many seconds remaining until
// it expires.
$shortest_token = 60;
if ($access_token) {
if ($access_expires > (time() + $shortest_token)) {
return $access_token;
}
}
}
$refresh_token = $account->getProperty('oauth.token.refresh');
if ($refresh_token) {
$adapter = $this->getAdapter();
if ($adapter->supportsTokenRefresh()) {
$adapter->refreshAccessToken($refresh_token);
$this->synchronizeOAuthAccount($account);
$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
$account->save();
unset($unguarded);
return $account->getProperty('oauth.token.access');
}
}
return null;
}
public function willRenderLinkedAccount(
PhabricatorUser $viewer,
PHUIObjectItemView $item,
PhabricatorExternalAccount $account) {
// Get a valid token, possibly refreshing it.
$oauth_token = $this->getOAuthAccessToken($account);
$item->addAttribute(pht('OAuth2 Account'));
if ($oauth_token) {
$oauth_expires = $account->getProperty('oauth.token.access.expires');
if ($oauth_expires) {
$item->addAttribute(
pht(
'Active OAuth Token (Expires: %s)',
phabricator_datetime($oauth_expires, $viewer)));
} else {
$item->addAttribute(
pht(
'Active OAuth Token'));
}
} else {
$item->addAttribute(pht('No OAuth Access Token'));
}
parent::willRenderLinkedAccount($viewer, $item, $account);
}
}

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