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<?php // ${license.statement} require_once ('pluginbuilder.php'); $provider = $pluginBuilder->getCustomParamsProvider(); $digest = $provider->getParameter('formula', null); $mml = $provider->getParameter('mml', null); $render = $pluginBuilder->newRender(); $jsonformat = $provider->getParameter('jsonformat', null); $lang = $provider->getParameter('lang', 'en'); // Backwards compatibility. // showimage.php?formula.png --> showimage.php?formula. // because formula is md5 string, remove all extensions. if (!is_null($digest)) { $a = explode(".", $digest); $digest = array_shift($a); } // Adding - if necessary - CORS headers $origin = isset($_SERVER['HTTP_ORIGIN']) ? $_SERVER['HTTP_ORIGIN'] : ""; $res = new com_wiris_system_service_HttpResponse(); $pluginBuilder->addCorsHeaders($res, $origin); if ($pluginBuilder->getConfiguration()->getProperty("wirispluginperformance", "false") == "true") { // Cache headers header("Content-type: application/json"); header("Pragma:"); // HTTP 1.0 header("Cache-Control: public, max-age=3600"); // HTTP 1.1 // If digest == null formula is not in cache. if (is_null($digest)) { $render->showImage(null, $mml, $provider); $digest = $render->computeDigest($mml, $provider->getRenderParameters($pluginBuilder->getConfiguration())); } $r = $render->showImageJson($digest, $lang); // If a formula is not in server cache, this request shouldn't be cached. if (strpos($r, "warning" )) { header("Pragma: no-cache"); // HTTP 1.0 header("Cache-Control: no-cache, no-store, must-revalidate"); //HTTP 1.1 } } else { $contentType = $pluginBuilder->getImageFormatController()->getContentType(); header('Content-Type: ' . $contentType); $r = $render->showImage($digest, $mml, $provider); } echo $r;