[Fetaure] skip DataHandler hooks by site config setting

Currently the 2 hooks of EXT:solr into DataHandler are fired for all sites, 
their pages and records. This is time consuming. 
Especially the RecordMonitor is taking up to 10s to do its thing.
Both GarbageCollector and RecordMonitor should skip their 
processDatamap_afterDatabaseOperations method, to avoid 
unneccessery processing for sites.

Fixes: #4108

Classes/GarbageCollector.php

@@ -189,6 +189,10 @@ public function processDatamap_afterDatabaseOperations($status, $table, $uid, ar
             return;
         }
 
+        if (Util::skipHooksForRecord($table, $uid, $fields['pid'] ?? null)) {
+            return;
+        }
+
         $updatedRecord = $this->getGarbageHandler()->getRecordWithFieldRelevantForGarbageCollection($table, $uid);
         if (empty($updatedRecord)) {
             return;

Classes/IndexQueue/RecordMonitor.php

@@ -148,6 +148,10 @@ public function processDatamap_afterDatabaseOperations(
             return;
         }
 
+        if (Util::skipHooksForRecord($table, (int)$recordUid, $recordPid)) {
+            return;
+        }
+
         if ($status === 'new' && !MathUtility::canBeInterpretedAsInteger($recordUid)) {
             if (isset($tceMain->substNEWwithIDs[$recordUid])) {
                 $recordUid = $tceMain->substNEWwithIDs[$recordUid];

Classes/Util.php

@@ -25,8 +25,11 @@
 use TYPO3\CMS\Backend\Utility\BackendUtility;
 use TYPO3\CMS\Core\Context\Context;
 use TYPO3\CMS\Core\Context\Exception\AspectNotFoundException;
+use TYPO3\CMS\Core\Exception\SiteNotFoundException;
+use TYPO3\CMS\Core\Site\SiteFinder;
 use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
 use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\Utility\MathUtility;
 
 /**
  * Utility class for tx_solr
@@ -134,6 +137,34 @@ public static function isDraftRecord(
         return $isWorkspaceRecord;
     }
 
+    public static function skipHooksForRecord(
+        string $table,
+        int $uid,
+        ?int $pid
+    ): bool {
+        if (is_null($pid) && MathUtility::canBeInterpretedAsInteger($uid)) {
+            $recordInfo = BackendUtility::getRecord($table, $uid, 'pid');
+            if (!is_null($recordInfo)) {
+                $pid = $recordInfo['pid'] ?? null;
+            }
+        }
+
+        if (!is_null($pid)) {
+            /** @var SiteFinder $siteFinder */
+            $siteFinder = GeneralUtility::makeInstance(SiteFinder::class);
+            try {
+                $site = $siteFinder->getSiteByPageId($pid);
+            } catch (SiteNotFoundException) {
+                return false;
+            }
+            if ((bool)($site->getConfiguration()['solr_skip_hooks'] ?? false)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
     /**
      * This function can be used to check if one of the strings in needles is
      * contained in the haystack.

Configuration/SiteConfiguration/Overrides/sites.php

@@ -87,6 +87,23 @@
     'displayCond' => 'FIELD:solr_enabled_read:=:1',
 ];
 
+$GLOBALS['SiteConfiguration']['site']['columns']['solr_skip_hooks'] = [
+    'label' => 'Disable TYPO3 hooks for this site',
+    'config' => [
+        'type' => 'check',
+        'renderType' => 'checkboxToggle',
+        'default' => 0,
+        'items' => [
+            [
+                'label' => '',
+                'labelChecked' => '',
+                'labelUnchecked' => '',
+            ],
+        ],
+    ],
+    'displayCond' => 'FIELD:solr_enabled_read:=:1',
+];
+
 // write TCA
 $GLOBALS['SiteConfiguration']['site']['columns']['solr_scheme_write'] = $GLOBALS['SiteConfiguration']['site']['columns']['solr_scheme_read'];
 $GLOBALS['SiteConfiguration']['site']['columns']['solr_scheme_write']['displayCond'] = 'FIELD:solr_use_write_connection:=:1';
@@ -106,7 +123,7 @@
 $GLOBALS['SiteConfiguration']['site']['palettes']['solr_read']['showitem'] = 'solr_scheme_read, solr_port_read, --linebreak--, solr_host_read, solr_path_read';
 $GLOBALS['SiteConfiguration']['site']['palettes']['solr_write']['showitem'] = 'solr_scheme_write, solr_port_write, --linebreak--, solr_host_write, solr_path_write';
 
-$GLOBALS['SiteConfiguration']['site']['types']['0']['showitem'] .= ',--div--;Solr,solr_enabled_read,--palette--;;solr_read, solr_use_write_connection,--palette--;;solr_write';
+$GLOBALS['SiteConfiguration']['site']['types']['0']['showitem'] .= ',--div--;Solr,solr_enabled_read,--palette--;;solr_read, solr_use_write_connection,--palette--;;solr_write,solr_skip_hooks';
 
 /**
  * Language specific core configuration