generate user themed icons

apps/theming/lib/Controller/IconController.php

@@ -86,16 +86,17 @@ public function __construct(
 	 * @throws \Exception
 	 */
 	public function getThemedIcon(string $app, string $image): Response {
+		$color = $this->themingDefaults->getColorPrimary();
 		try {
-			$iconFile = $this->imageManager->getCachedImage('icon-' . $app . '-' . str_replace('/', '_',$image));
+			$iconFileName = $this->imageManager->getCachedImage('icon-' . $app . '-' . $color . str_replace('/', '_', $image));
 		} catch (NotFoundException $exception) {
 			$icon = $this->iconBuilder->colorSvg($app, $image);
 			if ($icon === false || $icon === '') {
 				return new NotFoundResponse();
 			}
-			$iconFile = $this->imageManager->setCachedImage('icon-' . $app . '-' . str_replace('/', '_',$image), $icon);
+			$iconFileName = $this->imageManager->setCachedImage('icon-' . $app . '-' . $color . str_replace('/', '_', $image),  $icon);
 		}
-		$response = new FileDisplayResponse($iconFile, Http::STATUS_OK, ['Content-Type' => 'image/svg+xml']);
+		$response = new FileDisplayResponse($iconFileName, Http::STATUS_OK, ['Content-Type' => 'image/svg+xml']);
 		$response->cacheFor(86400, false, true);
 		return $response;
 	}

apps/theming/lib/Service/JSDataService.php

@@ -59,7 +59,7 @@ public function jsonSerialize(): array {
 			'imprintUrl' => $this->themingDefaults->getImprintUrl(),
 			'privacyUrl' => $this->themingDefaults->getPrivacyUrl(),
 			'inverted' => $this->util->invertTextColor($this->themingDefaults->getColorPrimary()),
-			'cacheBuster' => $this->appConfig->getAppValue(Application::APP_ID, 'cachebuster', '0'),
+			'cacheBuster' => $this->util->getCacheBuster(),
 			'enabledThemes' => $this->themesService->getEnabledThemes(),
 		];
 	}

apps/theming/lib/Service/ThemeInjectionService.php

@@ -24,27 +24,30 @@
 
 use OCA\Theming\AppInfo\Application;
 use OCA\Theming\Themes\DefaultTheme;
+use OCA\Theming\Util;
 use OCP\IConfig;
 use OCP\IURLGenerator;
 use OCP\IUserSession;
-use OCP\Util;
 
 class ThemeInjectionService {
 
 	private IURLGenerator $urlGenerator;
 	private ThemesService $themesService;
 	private DefaultTheme $defaultTheme;
+	private Util $util;
 	private IConfig $config;
 	private ?string $userId;
 
 	public function __construct(IURLGenerator $urlGenerator,
 								ThemesService $themesService,
 								DefaultTheme $defaultTheme,
+								Util $util,
 								IConfig $config,
 								IUserSession $userSession) {
 		$this->urlGenerator = $urlGenerator;
 		$this->themesService = $themesService;
 		$this->defaultTheme = $defaultTheme;
+		$this->util = $util;
 		$this->config = $config;
 		if ($userSession->getUser() !== null) {
 			$this->userId = $userSession->getUser()->getUID();
@@ -87,20 +90,12 @@ public function injectHeaders() {
 	 * @param string $media media query to use in the <link> element
 	 */
 	private function addThemeHeader(string $themeId, bool $plain = true, string $media = null) {
-		$cacheBuster = $this->config->getAppValue('theming', 'cachebuster', '0');
-		if ($this->userId !== null) {
-			// need to bust the cache for the CSS file when the user background changed as its
-			// URL is served in those files
-			$userCacheBuster = $this->config->getUserValue($this->userId, Application::APP_ID, 'userCacheBuster', '0');
-			$cacheBuster .= $this->userId . '_' . $userCacheBuster;
-		}
-
 		$linkToCSS = $this->urlGenerator->linkToRoute('theming.Theming.getThemeStylesheet', [
 			'themeId' => $themeId,
 			'plain' => $plain,
-			'v' => substr(sha1($cacheBuster), 0, 8),
+			'v' => $this->util->getCacheBuster(),
 		]);
-		Util::addHeader('link', [
+		\OCP\Util::addHeader('link', [
 			'rel' => 'stylesheet',
 			'media' => $media,
 			'href' => $linkToCSS,

apps/theming/lib/ThemingDefaults.php

@@ -420,7 +420,7 @@ public function replaceImagePath($app, $image) {
 		}
 
 		if ($route) {
-			return $route . '?v=' . $cacheBusterValue;
+			return $route . '?v=' . $this->util->getCacheBuster();
 		}
 
 		return false;

apps/theming/lib/Util.php

@@ -34,6 +34,7 @@
 use OCP\Files\NotFoundException;
 use OCP\Files\SimpleFS\ISimpleFile;
 use OCP\IConfig;
+use OCP\IUserSession;
 use Mexitek\PHPColors\Color;
 
 class Util {
@@ -266,4 +267,20 @@ public function isLogoThemed() {
 		return $this->imageManager->hasImage('logo')
 			|| $this->imageManager->hasImage('logoheader');
 	}
+
+	public function getCacheBuster(): string {
+		$userSession = \OC::$server->get(IUserSession::class);
+		$userId = '';
+		$user = $userSession->getUser();
+		if (!is_null($user)) {
+			$userId = $user->getUID();
+		}
+		$userCacheBuster = '';
+		if ($userId) {
+			$userCacheBusterValue = (int)$this->config->getUserValue($userId, 'theming', 'userCacheBuster', '0');
+			$userCacheBuster = $userId . '_' . $userCacheBusterValue;
+		}
+		$systemCacheBuster = $this->config->getAppValue('theming', 'cachebuster', '0');
+		return substr(sha1($userCacheBuster . $systemCacheBuster), 0, 8);
+	}
 }

apps/theming/tests/ThemingDefaultsTest.php

@@ -868,7 +868,7 @@ public function dataReplaceImagePath() {
 	}
 
 	/** @dataProvider dataReplaceImagePath */
-	public function testReplaceImagePath($app, $image, $result = 'themingRoute?v=0') {
+	public function testReplaceImagePath($app, $image, $result = 'themingRoute?v=1234abcd') {
 		$this->cache->expects($this->any())
 			->method('get')
 			->with('shouldReplaceIcons')
@@ -882,6 +882,12 @@ public function testReplaceImagePath($app, $image, $result = 'themingRoute?v=0')
 			->expects($this->any())
 			->method('linkToRoute')
 			->willReturn('themingRoute');
+		if ($result) {
+			$this->util
+				->expects($this->once())
+				->method('getCacheBuster')
+				->willReturn('1234abcd');
+		}
 		$this->assertEquals($result, $this->template->replaceImagePath($app, $image));
 	}
 }