Exception: HTTP request failed: Internal Server Error

[krabina]

Activating SMT leads to the following error (on some pages).

MediaWiki 1.43.9 (0d0ddd4)
PHP 8.3.8 (fpm-fcgi)
ICU 73.2
MySQL 8.0.28
Semantic MediaWiki 6.0.1 (448a112)
Semantic Result Formats 5.2.0 (a2682d7
Semantic Meta Tags 4.1.1 (2b8af16)

MediaWiki internal error.

Original exception: [47b884962bb1e4fa2dd04676] /FOO EasyRdf\Http\Exception: HTTP request for https://BAR/index.php?title=Spezial:RDF_exportieren&page=FOO&recursive=1&backlinks=0 failed: Internal Server Error
Backtrace:
from vendor/sweetrdf/easyrdf/lib/Graph.php(376)
#0 extensions/SemanticMetaTags/src/JsonLDSerializer.php(59): EasyRdf\Graph->load()
#1 extensions/SemanticMetaTags/src/JsonLDSerializer.php(22): SMT\JsonLDSerializer::setJsonLD()
#2 extensions/SemanticMetaTags/src/HookRegistry.php(66): SMT\JsonLDSerializer->__construct()
#3 includes/HookContainer/HookContainer.php(159): SMT\HookRegistry::SMT\{closure}()
#4 includes/HookContainer/HookRunner.php(983): MediaWiki\HookContainer\HookContainer->run()
#5 includes/Output/OutputPage.php(3186): MediaWiki\HookContainer\HookRunner->onBeforePageDisplay()
#6 includes/actions/ActionEntryPoint.php(164): MediaWiki\Output\OutputPage->output()
#7 includes/MediaWikiEntryPoint.php(200): MediaWiki\Actions\ActionEntryPoint->execute()
#8 index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#9 {main}

Exception caught inside exception handler: [47b884962bb1e4fa2dd04676] /FOO EasyRdf\Http\Exception: HTTP request for https://BAR/index.php?title=Spezial:RDF_exportieren&page=Reinhard+Lindner&recursive=1&backlinks=0 failed: Internal Server Error
Backtrace:
from vendor/sweetrdf/easyrdf/lib/Graph.php(376)
#0 extensions/SemanticMetaTags/src/JsonLDSerializer.php(59): EasyRdf\Graph->load()
#1 extensions/SemanticMetaTags/src/JsonLDSerializer.php(22): SMT\JsonLDSerializer::setJsonLD()
#2 extensions/SemanticMetaTags/src/HookRegistry.php(66): SMT\JsonLDSerializer->__construct()
#3 includes/HookContainer/HookContainer.php(159): SMT\HookRegistry::SMT\{closure}()
#4 includes/HookContainer/HookRunner.php(983): MediaWiki\HookContainer\HookContainer->run()
#5 includes/Output/OutputPage.php(3186): MediaWiki\HookContainer\HookRunner->onBeforePageDisplay()
#6 includes/exception/MWExceptionRenderer.php(190): MediaWiki\Output\OutputPage->output()
#7 includes/exception/MWExceptionRenderer.php(109): MWExceptionRenderer::reportHTML()
#8 includes/exception/MWExceptionHandler.php(135): MWExceptionRenderer::output()
#9 includes/exception/MWExceptionHandler.php(239): MWExceptionHandler::report()
#10 includes/MediaWikiEntryPoint.php(222): MWExceptionHandler::handleException()
#11 includes/actions/ActionEntryPoint.php(83): MediaWiki\MediaWikiEntryPoint->handleTopLevelError()
#12 includes/MediaWikiEntryPoint.php(206): MediaWiki\Actions\ActionEntryPoint->handleTopLevelError()
#13 index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#14 {main}

[krabina]

see also #95

[krabina]

I cannot reproduce this error in other installations. Seems to be very specific. Maybe related to a WAF.

[krabina]

See #117

[thomas-topway-it]

@krabina it seems related to SMW's RDF exporter rather than to SMT's JsonLDSerializer.

I have decoupled the logic, so the error logs should be more clear now. (see #120)