Add function to request SVG or regular fallback image

Fixes https://github.com/nextcloud/server/issues/4647

Signed-off-by: Lukas Reschke <lukas@statuscode.ch>

apps/theming/lib/ThemingDefaults.php

@@ -129,9 +129,10 @@ class ThemingDefaults extends \OC_Defaults {
 	/**
 	 * Themed logo url
 	 *
+	 * @param bool $useSvg Whether to point to the SVG image or a fallback
 	 * @return string
 	 */
-	public function getLogo() {
+	public function getLogo($useSvg = true) {
 		$logo = $this->config->getAppValue('theming', 'logoMime', false);
 
 		$logoExists = true;
@@ -144,7 +145,12 @@ class ThemingDefaults extends \OC_Defaults {
 		$cacheBusterCounter = $this->config->getAppValue('theming', 'cachebuster', '0');
 
 		if(!$logo || !$logoExists) {
-			return $this->urlGenerator->imagePath('core','logo.svg') . '?v=' . $cacheBusterCounter;
+			if($useSvg) {
+				$logo = $this->urlGenerator->imagePath('core', 'logo.svg');
+			} else {
+				$logo = $this->urlGenerator->imagePath('core', 'logo.png');
+			}
+			return $logo . '?v=' . $cacheBusterCounter;
 		}
 
 		return $this->urlGenerator->linkToRoute('theming.Theming.getLogo') . '?v=' . $cacheBusterCounter;

apps/theming/tests/ThemingDefaultsTest.php

@@ -431,7 +431,7 @@ class ThemingDefaultsTest extends TestCase {
 		$this->assertEquals('custom-background?v=0', $this->template->getBackground());
 	}
 
-	public function testGetLogoDefault() {
+	private function getLogoHelper($withName, $useSvg) {
 		$this->appData->expects($this->once())
 			->method('getFolder')
 			->willThrowException(new NotFoundException());
@@ -452,9 +452,17 @@ class ThemingDefaultsTest extends TestCase {
 			->willThrowException(new \Exception());
 		$this->urlGenerator->expects($this->once())
 			->method('imagePath')
-			->with('core', 'logo.svg')
+			->with('core', $withName)
 			->willReturn('core-logo');
-		$this->assertEquals('core-logo?v=0', $this->template->getLogo());
+		$this->assertEquals('core-logo?v=0', $this->template->getLogo($useSvg));
+	}
+
+	public function testGetLogoDefaultWithSvg() {
+		$this->getLogoHelper('logo.svg', true);
+	}
+
+	public function testGetLogoDefaultWithoutSvg() {
+		$this->getLogoHelper('logo.png', false);
 	}
 
 	public function testGetLogoCustom() {

lib/private/Mail/EMailTemplate.php

@@ -357,7 +357,7 @@ EOF;
 		}
 		$this->headerAdded = true;
 
-		$logoUrl = $this->urlGenerator->getAbsoluteURL($this->themingDefaults->getLogo());
+		$logoUrl = $this->urlGenerator->getAbsoluteURL($this->themingDefaults->getLogo(false));
 		$this->htmlBody .= vsprintf($this->header, [$this->themingDefaults->getColorPrimary(), $logoUrl, $this->themingDefaults->getName()]);
 	}
 

lib/private/legacy/defaults.php

@@ -47,9 +47,8 @@ class OC_Defaults {
 	private $defaultSlogan;
 	private $defaultLogoClaim;
 	private $defaultColorPrimary;
-	private $defaultLogoUrl;
 
-	function __construct() {
+	public function __construct() {
 		$this->l = \OC::$server->getL10N('lib');
 
 		$this->defaultEntity = 'Nextcloud'; /* e.g. company name, used for footers and copyright notices */
@@ -65,8 +64,6 @@ class OC_Defaults {
 		$this->defaultSlogan = $this->l->t('a safe home for all your data');
 		$this->defaultLogoClaim = '';
 		$this->defaultColorPrimary = '#0082c9';
-		$this->defaultLogoUrl = \OC::$server->getURLGenerator()->imagePath('core','logo.svg');
-		$this->defaultLogoUrl .=  '?v=' . hash('sha1', implode('.', \OCP\Util::getVersion()));
 
 		$themePath = OC::$SERVERROOT . '/themes/' . OC_Util::getTheme() . '/defaults.php';
 		if (file_exists($themePath)) {
@@ -307,13 +304,19 @@ class OC_Defaults {
 	/**
 	 * Themed logo url
 	 *
+	 * @param bool $useSvg Whether to point to the SVG image or a fallback
 	 * @return string
 	 */
-	public function getLogo() {
+	public function getLogo($useSvg = true) {
 		if ($this->themeExist('getLogo')) {
-			return $this->theme->getLogo();
+			return $this->theme->getLogo($useSvg);
 		}
 
-		return $this->defaultLogoUrl;
+		if($useSvg) {
+			$logo = \OC::$server->getURLGenerator()->imagePath('core', 'logo.svg');
+		} else {
+			$logo = \OC::$server->getURLGenerator()->imagePath('core', 'logo.png');
+		}
+	    return $logo . '?v=' . hash('sha1', implode('.', \OCP\Util::getVersion()));
 	}
 }

lib/public/Defaults.php

@@ -178,11 +178,12 @@ class Defaults {
 	/**
 	 * Themed logo url
 	 *
+	 * @param bool $useSvg Whether to point to the SVG image or a fallback
 	 * @return string
 	 * @since 12.0.0
 	 */
-	public function getLogo() {
-		return $this->defaults->getLogo();
+	public function getLogo($useSvg = true) {
+		return $this->defaults->getLogo($useSvg);
 	}
 
 	/**