From 31c8c38bd62af35c1578a8342b05580a9bd67466 Mon Sep 17 00:00:00 2001
From: Bjoern Schiessle <bjoern@schiessle.org>
Date: Wed, 26 Oct 2016 11:04:00 +0200
Subject: [PATCH] send mail for share-by-mail shares

Signed-off-by: Bjoern Schiessle <bjoern@schiessle.org>
---
 apps/sharebymail/lib/ShareByMailProvider.php | 83 ++++++++++++++++++--
 apps/sharebymail/templates/altmail.php       | 36 +++++++++
 apps/sharebymail/templates/mail.php          | 64 +++++++++++++++
 lib/private/Share20/ProviderFactory.php      |  4 +-
 4 files changed, 180 insertions(+), 7 deletions(-)
 create mode 100644 apps/sharebymail/templates/altmail.php
 create mode 100644 apps/sharebymail/templates/mail.php

diff --git a/apps/sharebymail/lib/ShareByMailProvider.php b/apps/sharebymail/lib/ShareByMailProvider.php
index e432ab139ed..c0c21bdb16c 100644
--- a/apps/sharebymail/lib/ShareByMailProvider.php
+++ b/apps/sharebymail/lib/ShareByMailProvider.php
@@ -21,12 +21,15 @@
 
 namespace OCA\ShareByMail;
 
+use OC\HintException;
 use OCP\Files\IRootFolder;
 use OCP\Files\Node;
 use OCP\IDBConnection;
 use OCP\IL10N;
 use OCP\ILogger;
+use OCP\IURLGenerator;
 use OCP\IUserManager;
+use OCP\Mail\IMailer;
 use OCP\Security\ISecureRandom;
 use OC\Share20\Share;
 use OCP\Share\IShare;
@@ -57,6 +60,12 @@ class ShareByMailProvider implements IShareProvider {
 	/** @var IL10N */
 	private $l;
 
+	/** @var IMailer */
+	private $mailer;
+
+	/** @var IURLGenerator */
+	private $urlGenerator;
+
 	/**
 	 * Return the identifier of this provider.
 	 *
@@ -75,6 +84,8 @@ class ShareByMailProvider implements IShareProvider {
 	 * @param IRootFolder $rootFolder
 	 * @param IL10N $l
 	 * @param ILogger $logger
+	 * @param IMailer $mailer
+	 * @param IURLGenerator $urlGenerator
 	 */
 	public function __construct(
 		IDBConnection $connection,
@@ -82,7 +93,9 @@ class ShareByMailProvider implements IShareProvider {
 		IUserManager $userManager,
 		IRootFolder $rootFolder,
 		IL10N $l,
-		ILogger $logger
+		ILogger $logger,
+		IMailer $mailer,
+		IURLGenerator $urlGenerator
 	) {
 		$this->dbConnection = $connection;
 		$this->secureRandom = $secureRandom;
@@ -90,6 +103,8 @@ class ShareByMailProvider implements IShareProvider {
 		$this->rootFolder = $rootFolder;
 		$this->l = $l;
 		$this->logger = $logger;
+		$this->mailer = $mailer;
+		$this->urlGenerator = $urlGenerator;
 	}
 
 	/**
@@ -127,7 +142,7 @@ class ShareByMailProvider implements IShareProvider {
 	 * @throws \Exception
 	 */
 	private function createMailShare(IShare $share) {
-		$token = $this->generateToken();
+		$share->setToken($this->generateToken());
 		$shareId = $this->addShareToDB(
 			$share->getNodeId(),
 			$share->getNodeType(),
@@ -135,21 +150,77 @@ class ShareByMailProvider implements IShareProvider {
 			$share->getSharedBy(),
 			$share->getShareOwner(),
 			$share->getPermissions(),
-			$token
+			$share->getToken()
 		);
 
 		try {
-			// TODO: Send email with public link
+			$link = $this->urlGenerator->linkToRouteAbsolute('files_sharing.sharecontroller.showShare',
+				['token' => $share->getToken()]);
+			$this->sendMailNotification($share->getNode()->getName(),
+				$link,
+				$share->getShareOwner(),
+				$share->getSharedBy(), $share->getSharedWith());
+		} catch (HintException $hintException) {
+			$this->logger->error('Failed to send share by mail: ' . $hintException->getMessage());
+			$this->removeShareFromTable($shareId);
+			throw $hintException;
 		} catch (\Exception $e) {
-			$this->logger->error('Failed to notify remote server of federated share, removing share (' . $e->getMessage() . ')');
+			$this->logger->error('Failed to send share by mail: ' . $e->getMessage());
 			$this->removeShareFromTable($shareId);
-			throw $e;
+			throw new HintException('Failed to send share by mail',
+				$this->l->t('Failed to send share by E-mail'));
 		}
 
 		return $shareId;
 
 	}
 
+	private function sendMailNotification($filename, $link, $owner, $initiator, $shareWith) {
+		if ($owner === $initiator) {
+			$subject = (string)$this->l->t('%s shared »%s« with you', array($owner, $filename));
+		} else {
+			$subject = (string)$this->l->t('%s shared »%s« with you on behalf of %s', array($owner, $filename, $initiator));
+		}
+
+		$message = $this->mailer->createMessage();
+		$htmlBody = $this->createMailBody('mail', $filename, $link, $owner, $initiator);
+		$textBody = $this->createMailBody('altmail', $filename, $link, $owner, $initiator);
+		$message->setTo([$shareWith]);
+		$message->setSubject($subject);
+		$message->setBody($textBody, 'text/plain');
+		$message->setHtmlBody($htmlBody);
+		$this->mailer->send($message);
+
+	}
+
+	/**
+	 * create mail body
+	 *
+	 * @param $filename
+	 * @param $link
+	 * @param $owner
+	 * @param $initiator
+	 * @return string plain text mail
+	 * @throws HintException
+	 */
+	protected function createMailBody($template, $filename, $link, $owner, $initiator) {
+
+		$mailBodyTemplate = new \OC_Template('sharebymail', $template, '');
+		$mailBodyTemplate->assign ('filename', $filename);
+		$mailBodyTemplate->assign ('link', $link);
+		$mailBodyTemplate->assign ('owner', $owner);
+		$mailBodyTemplate->assign ('initiator', $initiator);
+		$mailBodyTemplate->assign ('onBehalfOf', $initiator !== $owner);
+		$mailBody = $mailBodyTemplate->fetchPage();
+
+		if (is_string($mailBody)) {
+			return $mailBody;
+		}
+
+		throw new HintException('Failed to create the E-mail',
+			$this->l->t('Failed to create the E-mail'));
+	}
+
 	/**
 	 * generate share token
 	 *
diff --git a/apps/sharebymail/templates/altmail.php b/apps/sharebymail/templates/altmail.php
new file mode 100644
index 00000000000..02d262d7229
--- /dev/null
+++ b/apps/sharebymail/templates/altmail.php
@@ -0,0 +1,36 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Bjoern Schiessle <bjoern@schiessle.org>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/** @var OC_Theme $theme */
+/** @var array $_ */
+if ($_['onBehalfOf']) {
+	print_unescaped($l->t("Hey there,\n\n%s shared »%s« with you on behalf of %s.\n\n%s\n\n", [$_['owner'], $_['filename'], $_['initiator'], $_['link']]));
+} else {
+	print_unescaped($l->t("Hey there,\n\n%s shared »%s« with you.\n\n%s\n\n", [$_['owner'], $_['filename'], $_['link']]));
+}
+// TRANSLATORS term at the end of a mail
+p($l->t("Cheers!"));
+print_unescaped("\n");
+?>
+
+-- 
+<?php p($theme->getName() . ' - ' . $theme->getSlogan()); ?>
+<?php print_unescaped("\n".$theme->getBaseUrl());
diff --git a/apps/sharebymail/templates/mail.php b/apps/sharebymail/templates/mail.php
new file mode 100644
index 00000000000..48f7dcb063a
--- /dev/null
+++ b/apps/sharebymail/templates/mail.php
@@ -0,0 +1,64 @@
+<?php
+/**
+ * @copyright Copyright (c) 2016 Bjoern Schiessle <bjoern@schiessle.org>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/** @var OC_Theme $theme */
+/** @var array $_ */
+?>
+
+<table cellspacing="0" cellpadding="0" border="0" width="100%">
+	<tr><td>
+			<table cellspacing="0" cellpadding="0" border="0" width="600px">
+				<tr>
+					<td bgcolor="<?php p($theme->getMailHeaderColor());?>" width="20px">&nbsp;</td>
+					<td bgcolor="<?php p($theme->getMailHeaderColor());?>">
+						<img src="<?php p(\OC::$server->getURLGenerator()->getAbsoluteURL(image_path('', 'logo-mail.gif'))); ?>" alt="<?php p($theme->getName()); ?>"/>
+					</td>
+				</tr>
+				<tr><td colspan="2">&nbsp;</td></tr>
+				<tr>
+					<td width="20px">&nbsp;</td>
+					<td style="font-weight:normal; font-size:0.8em; line-height:1.2em; font-family:verdana,'arial',sans;">
+						<?php
+						if ($_['onBehalfOf']) {
+							print_unescaped($l->t('Hey there,<br><br>%s shared <a href="%s">%s</a> with you on behalf of %s.<br><br>', [$_['owner'], $_['link'], $_['filename'], $_['initiator']]));
+						} else {
+							print_unescaped($l->t('Hey there,<br><br>%s shared <a href="%s">%s</a> with you.<br><br>', [$_['owner'], $_['link'], $_['filename']]));
+						}
+						// TRANSLATORS term at the end of a mail
+						p($l->t('Cheers!'));
+						?>
+					</td>
+				</tr>
+				<tr><td colspan="2">&nbsp;</td></tr>
+				<tr>
+					<td width="20px">&nbsp;</td>
+					<td style="font-weight:normal; font-size:0.8em; line-height:1.2em; font-family:verdana,'arial',sans;">--<br>
+						<?php p($theme->getName()); ?> -
+						<?php p($theme->getSlogan()); ?>
+						<br><a href="<?php p($theme->getBaseUrl()); ?>"><?php p($theme->getBaseUrl());?></a>
+					</td>
+				</tr>
+				<tr>
+					<td colspan="2">&nbsp;</td>
+				</tr>
+			</table>
+		</td></tr>
+</table>
diff --git a/lib/private/Share20/ProviderFactory.php b/lib/private/Share20/ProviderFactory.php
index e1ed64d66ad..457cf117c69 100644
--- a/lib/private/Share20/ProviderFactory.php
+++ b/lib/private/Share20/ProviderFactory.php
@@ -151,7 +151,9 @@ class ProviderFactory implements IProviderFactory {
 				$this->serverContainer->getUserManager(),
 				$this->serverContainer->getLazyRootFolder(),
 				$l,
-				$this->serverContainer->getLogger()
+				$this->serverContainer->getLogger(),
+				$this->serverContainer->getMailer(),
+				$this->serverContainer->getURLGenerator()
 			);
 		}
 
-- 
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