SyncBackend::execute() - Code Metrics - Inspection of "Some user backends no not allow listing of users -..." - owncloud/core - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( c821ba...1bc6e3 )

by Thomas

created 2017-05-12 09:04 UTC

SyncBackend::execute() C

↳ Parent: SyncBackend

Complexity

Conditions	9
Paths	10

Size

Total Lines	64
Code Lines	44

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	9
eloc	44
nc	10
nop	2
dl	0
loc	64
rs	6.5449
c	0
b	0
f	0

How to fix Long Method

<?php
/**
 * @author Thomas Müller <[email protected]>
 *
 * @copyright Copyright (c) 2017, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OC\Core\Command\User;


use OC\User\AccountMapper;
use OC\User\SyncService;
use OCP\IConfig;
use OCP\ILogger;
use OCP\IUser;
use OCP\IUserManager;
use OCP\UserInterface;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Helper\ProgressBar;
use Symfony\Component\Console\Question\ChoiceQuestion;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;

class SyncBackend extends Command {

	/** @var AccountMapper */
	protected $accountMapper;
	/** @var IConfig */
	private $config;
	/** @var IUserManager */
	private $userManager;
	/** @var ILogger */
	private $logger;

	/**
	 * @param AccountMapper $accountMapper
	 * @param IConfig $config
	 * @param IUserManager $userManager
	 * @param ILogger $logger
	 */
	public function __construct(AccountMapper $accountMapper,
								IConfig $config,
								IUserManager $userManager,
								ILogger $logger) {
		parent::__construct();
		$this->accountMapper = $accountMapper;
		$this->config = $config;
		$this->userManager = $userManager;
		$this->logger = $logger;
	}

	protected function configure() {
		$this
			->setName('user:sync')
			->setDescription('synchronize users from a given backend to the accounts table')
			->addArgument(
				'backend-class',
				InputArgument::OPTIONAL,
				'The php class name - e.g. "OCA\User_LDAP\User_LDAP". Please wrap the class name into double quotes. You can use the option --list to list all known backend classes'
			)
			->addOption('list', 'l', InputOption::VALUE_NONE, 'list all known backend classes')
			->addOption('missing-account-action', 'm', InputOption::VALUE_REQUIRED, 'action to do if the account isn\'t connected to a backend any longer. Options are "disable" and "remove". Use quotes. Note that removing the account will also remove the stored data and files for that account');
	}

	protected function execute(InputInterface $input, OutputInterface $output) {
		if ($input->getOption('list')) {
			$backends = $this->userManager->getBackends();
			foreach ($backends as $backend) {
				$output->writeln(get_class($backend));
			}
			return 0;
		}
		$backendClassName = $input->getArgument('backend-class');
		if (is_null($backendClassName)) {
			$output->writeln("<error>No backend class name given. Please run ./occ help user:sync to understand how this command works.</error>");
			return 1;
		}
		$backend = $this->getBackend($backendClassName);
		if (is_null($backend)) {
			$output->writeln("<error>The backend <$backendClassName> does not exist. Did you miss to enable the app?</error>");
			return 1;
		}
		if (!$backend->hasUserListings()) {
			$output->writeln("<error>The backend <$backendClassName> does not allow user listing. No sync is possible</error>");
			return 1;
		}

		$validActions = ['disable', 'remove'];

		if ($input->getOption('missing-account-action') !== null) {
			$missingAccountsAction = $input->getOption('missing-account-action');
			if (!in_array($missingAccountsAction, $validActions, true)) {
				$output->writeln("<error>Unknown action. Choose between \"disable\" or \"remove\"</error>");
				return 1;
			}
		} else {
			// ask (if possible) how to handle missing accounts. Disable the accounts by default.
			$helper = $this->getHelper('question');
			$question = new ChoiceQuestion(
					'If unknown users are found, what do you want to do with their accounts? (removing the account will also remove its data)',
					array_merge($validActions, ['ask later']),
					0
			);
			$missingAccountsAction = $helper->ask($input, $output, $question);
		}

		$syncService = new SyncService($this->accountMapper, $backend, $this->config, $this->logger);

		// insert/update known users
		$output->writeln("Insert new and update existing users ...");
		$p = new ProgressBar($output);
		$max = null;
		if ($backend->implementsActions(\OC_User_Backend::COUNT_USERS)) {
			$max = $backend->countUsers();
		}
		$p->start($max);
		$syncService->run(function () use ($p) {
			$p->advance();
		});
		$p->finish();
		$output->writeln('');
		$output->writeln('');

		// analyse unknown users
		$this->handleUnknownUsers($input, $output, $syncService, $missingAccountsAction, $validActions);

		return 0;
	}

	/**
	 * @param $backend
	 * @return null|UserInterface
	 */
	private function getBackend($backend) {
		$backends = $this->userManager->getBackends();
		$match = array_filter($backends, function ($b) use ($backend) {
			return get_class($b) === $backend;
		});
		if (empty($match)) {
			return null;
		}
		return array_pop($match);
	}

	/**
	 * @param array $uids a list of uids to the the action
	 * @param callable $callbackExists the callback used if the account for the uid exists. The
	 * uid and the specific account will be passed as parameter to the callback in that order
	 * @param callable $callbackMissing the callback used if the account doesn't exists. The uid (not
	 * the account) will be passed as parameter to the callback
	 */
	private function doActionForAccountUids(array $uids, callable $callbackExists, callable $callbackMissing = null) {
		foreach ($uids as $u) {
			$userAccount = $this->userManager->get($u);
			if ($userAccount === null) {
				$callbackMissing($u);
			} else {
				$callbackExists($u, $userAccount);
			}
		}
	}

	/**
	 * @param InputInterface $input
	 * @param OutputInterface $output
	 * @param $syncService
	 * @param $missingAccountsAction
	 * @param $validActions
	 */
	private function handleUnknownUsers(InputInterface $input, OutputInterface $output, $syncService, $missingAccountsAction, $validActions) {
		$output->writeln("Analyse unknown users ...");
		$p = new ProgressBar($output);
		$toBeDeleted = $syncService->getNoLongerExistingUsers(function () use ($p) {
			$p->advance();
		});
		$p->finish();
		$output->writeln('');
		$output->writeln('');

		if (empty($toBeDeleted)) {
			$output->writeln("No unknown users have been detected.");
		} else {
			$output->writeln("Following users are no longer known with the connected backend.");
			switch ($missingAccountsAction) {
				case 'disable':

					$output->writeln("Proceeding to disable the accounts");
					$this->doActionForAccountUids($toBeDeleted,
						function ($uid, IUser $ac) use ($output) {
							$ac->setEnabled(false);
							$output->writeln($uid);
						},
						function ($uid) use ($output) {
							$output->writeln($uid . " (unknown account for the user)");
						});
					break;
				case 'remove':

					$output->writeln("Proceeding to remove the accounts");
					$this->doActionForAccountUids($toBeDeleted,
						function ($uid, IUser $ac) use ($output) {
							$ac->delete();
							$output->writeln($uid);
						},
						function ($uid) use ($output) {
							$output->writeln($uid . " (unknown account for the user)");
						});
					break;
				case 'ask later':
					$output->writeln("listing the unknown accounts");
					$this->doActionForAccountUids($toBeDeleted,
						function ($uid) use ($output) {
							$output->writeln($uid);
						},
						function ($uid) use ($output) {
							$output->writeln($uid . " (unknown account for the user)");
						});
					// overwriting variables!
					$helper = $this->getHelper('question');
					$question = new ChoiceQuestion(
						'What do you want to do with their accounts? (removing the account will also remove its data)',
						$validActions,
						0
					);
					$missingAccountsAction2 = $helper->ask($input, $output, $question);
					switch ($missingAccountsAction2) {
						// if "nothing" is selected, just ignore and finish
						case 'disable':

							$output->writeln("Proceeding to disable the accounts");
							$this->doActionForAccountUids($toBeDeleted,
								function ($uid, IUser $ac) {
									$ac->setEnabled(false);
								},
								function ($uid) use ($output) {
									$output->writeln($uid . " (unknown account for the user)");
								});
							break;
						case 'remove':

							$output->writeln("Proceeding to remove the accounts");
							$this->doActionForAccountUids($toBeDeleted,
								function ($uid, IUser $ac) {
									$ac->delete();
								},
								function ($uid) use ($output) {
									$output->writeln($uid . " (unknown account for the user)");
								});
							break;
					}
					break;
			}
		}
	}
}


1		<?php
2		/**
3		* @author Thomas Müller <[email protected]>
4		*
5		* @copyright Copyright (c) 2017, ownCloud GmbH
6		* @license AGPL-3.0
7		*
8		* This code is free software: you can redistribute it and/or modify
9		* it under the terms of the GNU Affero General Public License, version 3,
10		* as published by the Free Software Foundation.
11		*
12		* This program is distributed in the hope that it will be useful,
13		* but WITHOUT ANY WARRANTY; without even the implied warranty of
14		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15		* GNU Affero General Public License for more details.
16		*
17		* You should have received a copy of the GNU Affero General Public License, version 3,
18		* along with this program. If not, see <http://www.gnu.org/licenses/>
19		*
20		*/
21
22		namespace OC\Core\Command\User;
23
24
25		use OC\User\AccountMapper;
26		use OC\User\SyncService;
27		use OCP\IConfig;
28		use OCP\ILogger;
29		use OCP\IUser;
30		use OCP\IUserManager;
31		use OCP\UserInterface;
32		use Symfony\Component\Console\Command\Command;
33		use Symfony\Component\Console\Helper\ProgressBar;
34		use Symfony\Component\Console\Question\ChoiceQuestion;
35		use Symfony\Component\Console\Input\InputInterface;
36		use Symfony\Component\Console\Input\InputOption;
37		use Symfony\Component\Console\Output\OutputInterface;
38		use Symfony\Component\Console\Input\InputArgument;
39
40		class SyncBackend extends Command {
41
42		/** @var AccountMapper */
43		protected $accountMapper;
44		/** @var IConfig */
45		private $config;
46		/** @var IUserManager */
47		private $userManager;
48		/** @var ILogger */
49		private $logger;
50
51		/**
52		* @param AccountMapper $accountMapper
53		* @param IConfig $config
54		* @param IUserManager $userManager
55		* @param ILogger $logger
56		*/
57		public function __construct(AccountMapper $accountMapper,
58		IConfig $config,
59		IUserManager $userManager,
60		ILogger $logger) {
61		parent::__construct();
62		$this->accountMapper = $accountMapper;
63		$this->config = $config;
64		$this->userManager = $userManager;
65		$this->logger = $logger;
66		}
67
68		protected function configure() {
69		$this
70		->setName('user:sync')
71		->setDescription('synchronize users from a given backend to the accounts table')
72		->addArgument(
73		'backend-class',
74		InputArgument::OPTIONAL,
75		'The php class name - e.g. "OCA\User_LDAP\User_LDAP". Please wrap the class name into double quotes. You can use the option --list to list all known backend classes'
76		)
77		->addOption('list', 'l', InputOption::VALUE_NONE, 'list all known backend classes')
78		->addOption('missing-account-action', 'm', InputOption::VALUE_REQUIRED, 'action to do if the account isn\'t connected to a backend any longer. Options are "disable" and "remove". Use quotes. Note that removing the account will also remove the stored data and files for that account');
79		}
80
81		protected function execute(InputInterface $input, OutputInterface $output) {
82		if ($input->getOption('list')) {
83		$backends = $this->userManager->getBackends();
84		foreach ($backends as $backend) {
85		$output->writeln(get_class($backend));
86		}
87		return 0;
88		}
89		$backendClassName = $input->getArgument('backend-class');
90		if (is_null($backendClassName)) {
91		$output->writeln("<error>No backend class name given. Please run ./occ help user:sync to understand how this command works.</error>");
92		return 1;
93		}
94		$backend = $this->getBackend($backendClassName);
95		if (is_null($backend)) {
96		$output->writeln("<error>The backend <$backendClassName> does not exist. Did you miss to enable the app?</error>");
97		return 1;
98		}
99		if (!$backend->hasUserListings()) {
100		$output->writeln("<error>The backend <$backendClassName> does not allow user listing. No sync is possible</error>");
101		return 1;
102		}
103
104		$validActions = ['disable', 'remove'];
105
106		if ($input->getOption('missing-account-action') !== null) {
107		$missingAccountsAction = $input->getOption('missing-account-action');
108		if (!in_array($missingAccountsAction, $validActions, true)) {
109		$output->writeln("<error>Unknown action. Choose between \"disable\" or \"remove\"</error>");
110		return 1;
111		}
112		} else {
113		// ask (if possible) how to handle missing accounts. Disable the accounts by default.
114		$helper = $this->getHelper('question');
115		$question = new ChoiceQuestion(
116		'If unknown users are found, what do you want to do with their accounts? (removing the account will also remove its data)',
117		array_merge($validActions, ['ask later']),
118		0
119		);
120		$missingAccountsAction = $helper->ask($input, $output, $question);
121		}
122
123		$syncService = new SyncService($this->accountMapper, $backend, $this->config, $this->logger);
124
125		// insert/update known users
126		$output->writeln("Insert new and update existing users ...");
127		$p = new ProgressBar($output);
128		$max = null;
129		if ($backend->implementsActions(\OC_User_Backend::COUNT_USERS)) {
130		$max = $backend->countUsers();
131		}
132		$p->start($max);
133		$syncService->run(function () use ($p) {
134		$p->advance();
135		});
136		$p->finish();
137		$output->writeln('');
138		$output->writeln('');
139
140		// analyse unknown users
141		$this->handleUnknownUsers($input, $output, $syncService, $missingAccountsAction, $validActions);
142
143		return 0;
144		}
145
146		/**
147		* @param $backend
148		* @return null\|UserInterface
149		*/
150		private function getBackend($backend) {
151		$backends = $this->userManager->getBackends();
152		$match = array_filter($backends, function ($b) use ($backend) {
153		return get_class($b) === $backend;
154		});
155		if (empty($match)) {
156		return null;
157		}
158		return array_pop($match);
159		}
160
161		/**
162		* @param array $uids a list of uids to the the action
163		* @param callable $callbackExists the callback used if the account for the uid exists. The
164		* uid and the specific account will be passed as parameter to the callback in that order
165		* @param callable $callbackMissing the callback used if the account doesn't exists. The uid (not
166		* the account) will be passed as parameter to the callback
167		*/
168		private function doActionForAccountUids(array $uids, callable $callbackExists, callable $callbackMissing = null) {
169		foreach ($uids as $u) {
170		$userAccount = $this->userManager->get($u);
171		if ($userAccount === null) {
172		$callbackMissing($u);
173		} else {
174		$callbackExists($u, $userAccount);
175		}
176		}
177		}
178
179		/**
180		* @param InputInterface $input
181		* @param OutputInterface $output
182		* @param $syncService
183		* @param $missingAccountsAction
184		* @param $validActions
185		*/
186		private function handleUnknownUsers(InputInterface $input, OutputInterface $output, $syncService, $missingAccountsAction, $validActions) {
187		$output->writeln("Analyse unknown users ...");
188		$p = new ProgressBar($output);
189		$toBeDeleted = $syncService->getNoLongerExistingUsers(function () use ($p) {
190		$p->advance();
191		});
192		$p->finish();
193		$output->writeln('');
194		$output->writeln('');
195
196		if (empty($toBeDeleted)) {
197		$output->writeln("No unknown users have been detected.");
198		} else {
199		$output->writeln("Following users are no longer known with the connected backend.");
200		switch ($missingAccountsAction) {
201	View Code Duplication	case 'disable':
		0 ignored issues – show Duplication introduced 2017-05-03 11:39 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
202		$output->writeln("Proceeding to disable the accounts");
203		$this->doActionForAccountUids($toBeDeleted,
204		function ($uid, IUser $ac) use ($output) {
205		$ac->setEnabled(false);
206		$output->writeln($uid);
207		},
208		function ($uid) use ($output) {
209		$output->writeln($uid . " (unknown account for the user)");
210		});
211		break;
212	View Code Duplication	case 'remove':
		0 ignored issues – show Duplication introduced 2017-05-04 14:44 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
213		$output->writeln("Proceeding to remove the accounts");
214		$this->doActionForAccountUids($toBeDeleted,
215		function ($uid, IUser $ac) use ($output) {
216		$ac->delete();
217		$output->writeln($uid);
218		},
219		function ($uid) use ($output) {
220		$output->writeln($uid . " (unknown account for the user)");
221		});
222		break;
223		case 'ask later':
224		$output->writeln("listing the unknown accounts");
225		$this->doActionForAccountUids($toBeDeleted,
226		function ($uid) use ($output) {
227		$output->writeln($uid);
228		},
229		function ($uid) use ($output) {
230		$output->writeln($uid . " (unknown account for the user)");
231		});
232		// overwriting variables!
233		$helper = $this->getHelper('question');
234		$question = new ChoiceQuestion(
235		'What do you want to do with their accounts? (removing the account will also remove its data)',
236		$validActions,
237		0
238		);
239		$missingAccountsAction2 = $helper->ask($input, $output, $question);
240		switch ($missingAccountsAction2) {
241		// if "nothing" is selected, just ignore and finish
242	View Code Duplication	case 'disable':
		0 ignored issues – show Duplication introduced 2017-05-03 11:39 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
243		$output->writeln("Proceeding to disable the accounts");
244		$this->doActionForAccountUids($toBeDeleted,
245		function ($uid, IUser $ac) {
246		$ac->setEnabled(false);
247		},
248		function ($uid) use ($output) {
249		$output->writeln($uid . " (unknown account for the user)");
250		});
251		break;
252	View Code Duplication	case 'remove':
		0 ignored issues – show Duplication introduced 2017-05-04 14:44 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
253		$output->writeln("Proceeding to remove the accounts");
254		$this->doActionForAccountUids($toBeDeleted,
255		function ($uid, IUser $ac) {
256		$ac->delete();
257		},
258		function ($uid) use ($output) {
259		$output->writeln($uid . " (unknown account for the user)");
260		});
261		break;
262		}
263		break;
264		}
265		}
266		}
267		}
268

owncloud / core

Push — master ( c821ba...1bc6e3 )

SyncBackend::execute() C

Complexity

Size

Duplication

Importance

How to fix Long Method

Long Method

Duplication Side-by-Side

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