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Predis to v2.2.2

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the-djmaze 2024-04-02 20:15:23 +02:00
parent f6b440adef
commit 84ffe1e552
259 changed files with 2407 additions and 9937 deletions
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93
plugins/cache-redis/Predis/Replication/ReplicationStrategy.php
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@ -3,7 +3,8 @@
/*
* This file is part of the Predis package.
*
* (c) Daniele Alessandri <suppakilla@gmail.com>
* (c) 2009-2020 Daniele Alessandri
* (c) 2021-2023 Till Krüss
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
@ -16,23 +17,19 @@ use Predis\NotSupportedException;
/**
* Defines a strategy for master/slave replication.
*
* @author Daniele Alessandri <suppakilla@gmail.com>
*/
class ReplicationStrategy
{
protected $disallowed;
protected $readonly;
protected $readonlySHA1;
protected $loadBalancing = true;
/**
*
*/
public function __construct()
{
$this->disallowed = $this->getDisallowedOperations();
$this->readonly = $this->getReadOnlyOperations();
$this->readonlySHA1 = array();
$this->readonlySHA1 = [];
}
/**
@ -41,12 +38,15 @@ class ReplicationStrategy
*
* @param CommandInterface $command Command instance.
*
* @throws NotSupportedException
*
* @return bool
* @throws NotSupportedException
*/
public function isReadOperation(CommandInterface $command)
{
if (!$this->loadBalancing) {
return false;
}
if (isset($this->disallowed[$id = $command->getId()])) {
throw new NotSupportedException(
"The command '$id' is not allowed in replication mode."
@ -62,7 +62,8 @@ class ReplicationStrategy
}
if (($eval = $id === 'EVAL') || $id === 'EVALSHA') {
$sha1 = $eval ? sha1($command->getArgument(0)) : $command->getArgument(0);
$argument = $command->getArgument(0);
$sha1 = $eval ? sha1(strval($argument)) : $argument;
if (isset($this->readonlySHA1[$sha1])) {
if (true === $readonly = $this->readonlySHA1[$sha1]) {
@ -90,18 +91,54 @@ class ReplicationStrategy
}
/**
* Checks if a SORT command is a readable operation by parsing the arguments
* array of the specified commad instance.
* Checks if BITFIELD performs a read-only operation by looking for certain
* SET and INCRYBY modifiers in the arguments array of the command.
*
* @param CommandInterface $command Command instance.
*
* @return bool
*/
protected function isSortReadOnly(CommandInterface $command)
protected function isBitfieldReadOnly(CommandInterface $command)
{
$arguments = $command->getArguments();
$argc = count($arguments);
return ($c = count($arguments)) === 1 ? true : $arguments[$c - 2] !== 'STORE';
if ($argc >= 2) {
for ($i = 1; $i < $argc; ++$i) {
$argument = strtoupper($arguments[$i]);
if ($argument === 'SET' || $argument === 'INCRBY') {
return false;
}
}
}
return true;
}
/**
* Checks if a GEORADIUS command is a readable operation by parsing the
* arguments array of the specified command instance.
*
* @param CommandInterface $command Command instance.
*
* @return bool
*/
protected function isGeoradiusReadOnly(CommandInterface $command)
{
$arguments = $command->getArguments();
$argc = count($arguments);
$startIndex = $command->getId() === 'GEORADIUS' ? 5 : 4;
if ($argc > $startIndex) {
for ($i = $startIndex; $i < $argc; ++$i) {
$argument = strtoupper($arguments[$i]);
if ($argument === 'STORE' || $argument === 'STOREDIST') {
return false;
}
}
}
return true;
}
/**
@ -153,7 +190,7 @@ class ReplicationStrategy
*/
protected function getDisallowedOperations()
{
return array(
return [
'SHUTDOWN' => true,
'INFO' => true,
'DBSIZE' => true,
@ -165,7 +202,7 @@ class ReplicationStrategy
'BGSAVE' => true,
'BGREWRITEAOF' => true,
'SLOWLOG' => true,
);
];
}
/**
@ -175,7 +212,7 @@ class ReplicationStrategy
*/
protected function getReadOnlyOperations()
{
return array(
return [
'EXISTS' => true,
'TYPE' => true,
'KEYS' => true,
@ -231,7 +268,25 @@ class ReplicationStrategy
'BITPOS' => true,
'TIME' => true,
'PFCOUNT' => true,
'SORT' => array($this, 'isSortReadOnly'),
);
'BITFIELD' => [$this, 'isBitfieldReadOnly'],
'GEOHASH' => true,
'GEOPOS' => true,
'GEODIST' => true,
'GEORADIUS' => [$this, 'isGeoradiusReadOnly'],
'GEORADIUSBYMEMBER' => [$this, 'isGeoradiusReadOnly'],
];
}
/**
* Disables reads to slaves when using
* a replication topology.
*
* @return self
*/
public function disableLoadBalancing(): self
{
$this->loadBalancing = false;
return $this;
}
}