[stable10] Backport of Fixing email sent to recipient using recipient…

…s language code

The recipient, internal to owncloud instance should
recieve the email from the sender ( internal to owncloud )
in the language chosen by the recipient.

Signed-off-by: Sujith H <sharidasan@owncloud.com>

lib/private/Share/MailNotifications.php

@@ -164,8 +164,16 @@ public function sendInternalShareMail($recipientList, $itemSource, $itemType) {
 			$filename = $filter->getFile();
 			$link = $filter->getLink();
 
-			$subject = (string) $this->l->t('%s shared »%s« with you', [$this->senderDisplayName, $unescapedFilename]);
-			list($htmlBody, $textBody) = $this->createMailBody($filename, $link, $expiration, null, 'internal');
+			$recipientLanguageCode = $this->config->getUserValue($recipient->getUID(), 'core', 'lang', 'en');
+			$recipientL10N = \OC::$server->getL10N('core');
+			if ($this->l->getLanguageCode() !== $recipientLanguageCode) {
+				$recipientL10N = \OC::$server->getL10N('core', $recipientLanguageCode);
+				$subject = (string)$recipientL10N->t('%s shared »%s« with you', [$this->senderDisplayName, $unescapedFilename]);
+			} else {
+				$subject = (string)$this->l->t('%s shared »%s« with you', [$this->senderDisplayName, $unescapedFilename]);
+			}
+
+			list($htmlBody, $textBody) = $this->createMailBody($filename, $link, $expiration, null, 'internal', $recipientL10N);
 
 			// send it out now
 			try {

tests/lib/Share/MailNotificationsTest.php

@@ -29,6 +29,7 @@
 use OCP\IURLGenerator;
 use OCP\IUser;
 use OCP\Mail\IMailer;
+use OCP\Share\IShare;
 use OCP\Util;
 use Symfony\Component\EventDispatcher\EventDispatcher;
 use Symfony\Component\EventDispatcher\GenericEvent;
@@ -651,4 +652,71 @@ protected function setupMailerMock($subject, $to, $exceptionOnSend = true) {
 					->will($this->throwException(new \Exception('Some Exception Message')));
 		}
 	}
+
+	public function providesLanguages() {
+		return [
+			['es', 'en'],
+			['en', 'en']
+		];
+	}
+
+	/**
+	 * @dataProvider providesLanguages
+	 * @param string $recipientLanguage
+	 * @param string $senderLanguage
+	 */
+	public function testSendInternalShareWithRecipientLanguageCode($recipientLanguage, $senderLanguage) {
+		$this->setupMailerMock('TestUser shared »<welcome>.txt« with you', ['recipient@owncloud.com' => 'Recipient'], false);
+		$mailNotifications = $this->getMockBuilder('OC\Share\MailNotifications')
+			->setMethods(['getItemSharedWithUser'])
+			->setConstructorArgs([
+				$this->user,
+				$this->l10n,
+				$this->mailer,
+				$this->config,
+				$this->logger,
+				$this->defaults,
+				$this->urlGenerator,
+				$this->eventDispatcher
+			])
+			->getMock();
+
+		$mailNotifications->method('getItemSharedWithUser')
+			->withAnyParameters()
+			->willReturn([
+				['file_target' => '/<welcome>.txt', 'item_source' => 123, 'expiration' => '2017-01-01T15:03:01.012345Z'],
+			]);
+
+		$recipient = $this->createMock(IUser::class);
+		$recipient->expects($this->once())
+			->method('getEMailAddress')
+			->willReturn('recipient@owncloud.com');
+		$recipient->expects($this->once())
+			->method('getDisplayName')
+			->willReturn('Recipient');
+		$recipient->method('getUID')
+			->willReturn('Recipient');
+
+		$this->config->expects($this->once())
+			->method('getUserValue')
+			->with('Recipient', 'core', 'lang', 'en')
+			->willReturn($recipientLanguage);
+
+		$this->l10n->method('getLanguageCode')
+			->willReturn($senderLanguage);
+
+		$this->urlGenerator->expects($this->once())
+			->method('linkToRouteAbsolute')
+			->with(
+				$this->equalTo('files.viewcontroller.showFile'),
+				$this->equalTo([
+					'fileId' => 123,
+				])
+			);
+
+		$recipientList = [$recipient];
+
+		$result = $mailNotifications->sendInternalShareMail($recipientList, '3', 'file');
+		$this->assertSame([], $result);
+	}
 }