LocalChannelManager::unsubscribeFromChannel() - Code Metrics - Inspection of "[2.x] Major refactoring" - beyondcode/laravel-websockets - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#447)

by Alexandru

created 2020-09-18 19:20 UTC

LocalChannelManager::unsubscribeFromChannel() A

↳ Parent: LocalChannelManager

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	6
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	3

<?php

namespace BeyondCode\LaravelWebSockets\ChannelManagers;

use BeyondCode\LaravelWebSockets\Channels\Channel;
use BeyondCode\LaravelWebSockets\Channels\PresenceChannel;
use BeyondCode\LaravelWebSockets\Channels\PrivateChannel;
use BeyondCode\LaravelWebSockets\Contracts\ChannelManager;
use Illuminate\Support\Str;
use Ratchet\ConnectionInterface;
use React\EventLoop\LoopInterface;
use React\Promise\FulfilledPromise;
use React\Promise\PromiseInterface;
use stdClass;

class LocalChannelManager implements ChannelManager
{
    /**
     * The list of stored channels.
     *
     * @var array
     */
    protected $channels = [];

    /**
     * The list of users that joined the presence channel.
     *
     * @var array
     */
    protected $users = [];

    /**
     * The list of users by socket and their attached id.
     *
     * @var array
     */
    protected $userSockets = [];

    /**
     * Wether the current instance accepts new connections.
     *
     * @var bool
     */
    protected $acceptsNewConnections = true;

    /**
     * Create a new channel manager instance.
     *
     * @param  LoopInterface  $loop
     * @param  string|null  $factoryClass
     * @return void

     */
    public function __construct(LoopInterface $loop, $factoryClass = null)
    {
        //
    }

    /**
     * Find the channel by app & name.
     *
     * @param  string|int  $appId
     * @param  string  $channel
     * @return null|BeyondCode\LaravelWebSockets\Channels\Channel
     */
    public function find($appId, string $channel)
    {
        return $this->channels[$appId][$channel] ?? null;
    }

    /**
     * Find a channel by app & name or create one.
     *
     * @param  string|int  $appId
     * @param  string  $channel
     * @return BeyondCode\LaravelWebSockets\Channels\Channel
     */
    public function findOrCreate($appId, string $channel)
    {
        if (! $channelInstance = $this->find($appId, $channel)) {
            $class = $this->getChannelClassName($channel);

            $this->channels[$appId][$channel] = new $class($channel);
        }

        return $this->channels[$appId][$channel];
    }

    /**
     * Get the local connections, regardless of the channel
     * they are connected to.
     *
     * @return \React\Promise\PromiseInterface
     */
    public function getLocalConnections(): PromiseInterface
    {
        $connections = collect($this->channels)
            ->map(function ($channelsWithConnections, $appId) {

                return collect($channelsWithConnections)->values();
            })
            ->values()->collapse()
            ->map(function ($channel) {
                return collect($channel->getConnections());
            })
            ->values()->collapse()
            ->toArray();

        return new FulfilledPromise($connections);

    }

    /**
     * Get all channels for a specific app
     * for the current instance.
     *
     * @param  string|int  $appId
     * @return \React\Promise\PromiseInterface[array]

     */
    public function getLocalChannels($appId): PromiseInterface
    {
        return new FulfilledPromise(

            $this->channels[$appId] ?? []
        );
    }

    /**
     * Get all channels for a specific app
     * across multiple servers.
     *
     * @param  string|int  $appId
     * @return \React\Promise\PromiseInterface[array]

     */
    public function getGlobalChannels($appId): PromiseInterface
    {
        return $this->getLocalChannels($appId);
    }

    /**
     * Remove connection from all channels.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @return void
     */
    public function unsubscribeFromAllChannels(ConnectionInterface $connection)
    {
        if (! isset($connection->app)) {
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
            return;
        }

        $this->getLocalChannels($connection->app->id)
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
            ->then(function ($channels) use ($connection) {
                collect($channels)->each->unsubscribe($connection);

                collect($channels)
                    ->reject->hasConnections()
                    ->each(function (Channel $channel, string $channelName) use ($connection) {
                        unset($this->channels[$connection->app->id][$channelName]);
                    });
            });

        $this->getLocalChannels($connection->app->id)
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
            ->then(function ($channels) use ($connection) {
                if (count($channels) === 0) {
                    unset($this->channels[$connection->app->id]);
                }
            });
    }

    /**
     * Subscribe the connection to a specific channel.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @param  string  $channelName
     * @param  stdClass  $payload
     * @return void
     */
    public function subscribeToChannel(ConnectionInterface $connection, string $channelName, stdClass $payload)
    {
        $channel = $this->findOrCreate($connection->app->id, $channelName);
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}

        $channel->subscribe($connection, $payload);
    }

    /**
     * Unsubscribe the connection from the channel.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @param  string  $channelName
     * @param  stdClass  $payload
     * @return void
     */
    public function unsubscribeFromChannel(ConnectionInterface $connection, string $channelName, stdClass $payload)
    {
        $channel = $this->findOrCreate($connection->app->id, $channelName);
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}

        $channel->unsubscribe($connection, $payload);
    }

    /**
     * Subscribe the connection to a specific channel.
     *
     * @param  string|int  $appId
     * @return void
     */
    public function subscribeToApp($appId)
    {
        //
    }

    /**
     * Unsubscribe the connection from the channel.
     *
     * @param  string|int  $appId
     * @return void
     */
    public function unsubscribeFromApp($appId)
    {
        //
    }

    /**
     * Get the connections count on the app
     * for the current server instance.
     *
     * @param  string|int  $appId
     * @param  string|null  $channelName
     * @return \React\Promise\PromiseInterface
     */
    public function getLocalConnectionsCount($appId, string $channelName = null): PromiseInterface
    {
        return $this->getLocalChannels($appId)
            ->then(function ($channels) use ($channelName) {
                return collect($channels)
                    ->when(! is_null($channelName), function ($collection) use ($channelName) {
                        return $collection->filter(function (Channel $channel) use ($channelName) {
                            return $channel->getName() === $channelName;
                        });
                    })
                    ->flatMap(function (Channel $channel) {
                        return collect($channel->getConnections())->pluck('socketId');
                    })
                    ->unique()
                    ->count();
            });
    }

    /**
     * Get the connections count
     * across multiple servers.
     *
     * @param  string|int  $appId
     * @param  string|null  $channelName
     * @return \React\Promise\PromiseInterface
     */
    public function getGlobalConnectionsCount($appId, string $channelName = null): PromiseInterface
    {
        return $this->getLocalConnectionsCount($appId, $channelName);
    }

    /**
     * Broadcast the message across multiple servers.
     *
     * @param  string|int  $appId
     * @param  string|null  $socketId
     * @param  string  $channel
     * @param  stdClass  $payload
     * @param  string|null  $serverId
     * @return bool
     */
    public function broadcastAcrossServers($appId, ?string $socketId, string $channel, stdClass $payload, string $serverId = null)
    {
        return true;
    }

    /**
     * Handle the user when it joined a presence channel.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @param  stdClass  $user
     * @param  string  $channel
     * @param  stdClass  $payload
     * @return void
     */
    public function userJoinedPresenceChannel(ConnectionInterface $connection, stdClass $user, string $channel, stdClass $payload)
    {
        $this->users["{$connection->app->id}:{$channel}"][$connection->socketId] = json_encode($user);
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
        $this->userSockets["{$connection->app->id}:{$channel}:{$user->user_id}"][] = $connection->socketId;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
    }

    /**
     * Handle the user when it left a presence channel.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @param  stdClass  $user
     * @param  string  $channel
     * @param  stdClass  $payload
/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}
     * @return void
     */
    public function userLeftPresenceChannel(ConnectionInterface $connection, stdClass $user, string $channel)
    {
        unset($this->users["{$connection->app->id}:{$channel}"][$connection->socketId]);

        $deletableSocketKey = array_search(
            $connection->socketId,
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
            $this->userSockets["{$connection->app->id}:{$channel}:{$user->user_id}"]
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
        );

        if ($deletableSocketKey !== false) {
            unset($this->userSockets["{$connection->app->id}:{$channel}:{$user->user_id}"][$deletableSocketKey]);

            if (count($this->userSockets["{$connection->app->id}:{$channel}:{$user->user_id}"]) === 0) {
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}
                unset($this->userSockets["{$connection->app->id}:{$channel}:{$user->user_id}"]);
            }
        }
    }

    /**
     * Get the presence channel members.
     *
     * @param  string|int  $appId
     * @param  string  $channel
     * @return \React\Promise\PromiseInterface
     */
    public function getChannelMembers($appId, string $channel): PromiseInterface
    {
        $members = $this->users["{$appId}:{$channel}"] ?? [];

        $members = collect($members)->map(function ($user) {
            return json_decode($user);
        })->unique('user_id')->toArray();

        return new FulfilledPromise($members);

    }

    /**
     * Get a member from a presence channel based on connection.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @param  string  $channel
     * @return \React\Promise\PromiseInterface
     */
    public function getChannelMember(ConnectionInterface $connection, string $channel): PromiseInterface
    {
        $member = $this->users["{$connection->app->id}:{$channel}"][$connection->socketId] ?? null;
interface SomeInterface { }
class SomeClass implements SomeInterface {
    public $a;
}

function someFunction(SomeInterface $object) {
    if ($object instanceof SomeClass) {
        $a = $object->a;
    }
}

        return new FulfilledPromise($member);

    }

    /**
     * Get the presence channels total members count.
     *
     * @param  string|int  $appId
     * @param  array  $channelNames
     * @return \React\Promise\PromiseInterface
     */
    public function getChannelsMembersCount($appId, array $channelNames): PromiseInterface
    {
        $results = collect($channelNames)
            ->reduce(function ($results, $channel) use ($appId) {
                $results[$channel] = isset($this->users["{$appId}:{$channel}"])
                    ? count($this->users["{$appId}:{$channel}"])
                    : 0;

                return $results;
            }, []);

        return new FulfilledPromise($results);

    }

    /**
     * Get the socket IDs for a presence channel member.
     *
     * @param  string|int  $userId
     * @param  string|int  $appId
     * @param  string  $channelName
     * @return \React\Promise\PromiseInterface
     */
    public function getMemberSockets($userId, $appId, $channelName): PromiseInterface
    {
        return new FulfilledPromise(

            $this->userSockets["{$appId}:{$channelName}:{$userId}"] ?? []
        );
    }

    /**
     * Keep tracking the connections availability when they pong.
     *
     * @param  \Ratchet\ConnectionInterface  $connection
     * @return bool
     */
    public function connectionPonged(ConnectionInterface $connection): bool
    {
        return true;
    }

    /**
     * Remove the obsolete connections that didn't ponged in a while.
     *
     * @return bool
     */
    public function removeObsoleteConnections(): bool
    {
        return true;
    }

    /**
     * Mark the current instance as unable to accept new connections.
     *
     * @return $this
     */
    public function declineNewConnections()
    {
        $this->acceptsNewConnections = false;

        return $this;
    }

    /**
     * Check if the current server instance
     * accepts new connections.
     *
     * @return bool
     */
    public function acceptsNewConnections(): bool
    {
        return $this->acceptsNewConnections;
    }

    /**
     * Get the channel class by the channel name.
     *
     * @param  string  $channelName
     * @return string
     */
    protected function getChannelClassName(string $channelName): string
    {
        if (Str::startsWith($channelName, 'private-')) {
            return PrivateChannel::class;
        }

        if (Str::startsWith($channelName, 'presence-')) {
            return PresenceChannel::class;
        }

        return Channel::class;
    }
}


Pull Request — master (#447)

LocalChannelManager::unsubscribeFromChannel() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

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Available Fixes

1			<?php
2
3			namespace BeyondCode\LaravelWebSockets\ChannelManagers;
4
5			use BeyondCode\LaravelWebSockets\Channels\Channel;
6			use BeyondCode\LaravelWebSockets\Channels\PresenceChannel;
7			use BeyondCode\LaravelWebSockets\Channels\PrivateChannel;
8			use BeyondCode\LaravelWebSockets\Contracts\ChannelManager;
9			use Illuminate\Support\Str;
10			use Ratchet\ConnectionInterface;
11			use React\EventLoop\LoopInterface;
12			use React\Promise\FulfilledPromise;
13			use React\Promise\PromiseInterface;
14			use stdClass;
15
16			class LocalChannelManager implements ChannelManager
17			{
18			/**
19			* The list of stored channels.
20			*
21			* @var array
22			*/
23			protected $channels = [];
24
25			/**
26			* The list of users that joined the presence channel.
27			*
28			* @var array
29			*/
30			protected $users = [];
31
32			/**
33			* The list of users by socket and their attached id.
34			*
35			* @var array
36			*/
37			protected $userSockets = [];
38
39			/**
40			* Wether the current instance accepts new connections.

beyondcode / laravel-websockets

Pull Request — master (#447)

LocalChannelManager::unsubscribeFromChannel() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

Available Fixes

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