Backport of format self-mentions, but don't offer them #7914

comments should compile mentions also if done by author

it is used by clients for formatting reasons, there is no reason not format
the author if her handle is included in the comment body.
It is unrelated to sending out notifications.

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

do not offer the handle of the current user for auto completion

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

add types to php doc

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

5 files changed, 74 insertions, 6 deletions

diff --git a/lib/private/Collaboration/Collaborators/Search.php b/lib/private/Collaboration/Collaborators/Search.php
index e9b15dd1201..bb1bd6d1711 100644
--- a/lib/private/Collaboration/Collaborators/Search.php
+++ b/lib/private/Collaboration/Collaborators/Search.php
@@ -40,6 +40,15 @@ class Search implements ISearch {
 		$this->c = $c;
 	}
 
+	/**
+	 * @param string $search
+	 * @param array $shareTypes
+	 * @param bool $lookup
+	 * @param int|null $limit
+	 * @param int|null $offset
+	 * @return array
+	 * @throws \OCP\AppFramework\QueryException
+	 */
 	public function search($search, array $shareTypes, $lookup, $limit, $offset) {
 		$hasMoreResults = false;
 
diff --git a/lib/private/Collaboration/Collaborators/UserPlugin.php b/lib/private/Collaboration/Collaborators/UserPlugin.php
index 86a55aa428f..ad677703547 100644
--- a/lib/private/Collaboration/Collaborators/UserPlugin.php
+++ b/lib/private/Collaboration/Collaborators/UserPlugin.php
@@ -83,6 +83,8 @@ class UserPlugin implements ISearchPlugin {
 			}
 		}
 
+		$this->takeOutCurrentUser($users);
+
 		if (!$this->shareeEnumeration || sizeof($users) < $limit) {
 			$hasMoreResults = true;
 		}
@@ -146,4 +148,13 @@ class UserPlugin implements ISearchPlugin {
 
 		return $hasMoreResults;
 	}
+
+	public function takeOutCurrentUser(array &$users) {
+		$currentUser = $this->userSession->getUser();
+		if(!is_null($currentUser)) {
+			if (isset($users[$currentUser->getUID()])) {
+				unset($users[$currentUser->getUID()]);
+			}
+		}
+	}
 }
diff --git a/lib/private/Comments/Comment.php b/lib/private/Comments/Comment.php
index acfebd32028..dd790c2e50a 100644
--- a/lib/private/Comments/Comment.php
+++ b/lib/private/Comments/Comment.php
@@ -232,10 +232,6 @@ class Comment implements IComment {
 		$uids = array_unique($mentions[0]);
 		$result = [];
 		foreach ($uids as $uid) {
-			// exclude author, no self-mentioning
-			if($uid === '@' . $this->getActorId()) {
-				continue;
-			}
 			$result[] = ['type' => 'user', 'id' => substr($uid, 1)];
 		}
 		return $result;
diff --git a/tests/lib/Collaboration/Collaborators/UserPluginTest.php b/tests/lib/Collaboration/Collaborators/UserPluginTest.php
index 7d6d9c645a0..cfb97de8676 100644
--- a/tests/lib/Collaboration/Collaborators/UserPluginTest.php
+++ b/tests/lib/Collaboration/Collaborators/UserPluginTest.php
@@ -442,4 +442,51 @@ class UserPluginTest extends TestCase {
 		$this->assertEquals($expected, $result['users']);
 		$this->assertSame($reachedEnd, $moreResults);
 	}
+
+	public function takeOutCurrentUserProvider() {
+		$inputUsers = [
+			'alice' => 'Alice',
+			'bob' => 'Bob',
+			'carol' => 'Carol'
+		];
+		return [
+			[
+				$inputUsers,
+				['alice', 'carol'],
+				'bob'
+			],
+			[
+				$inputUsers,
+				['alice', 'bob', 'carol'],
+				'dave'
+			],
+			[
+				$inputUsers,
+				['alice', 'bob', 'carol'],
+				null
+			]
+		];
+	}
+
+	/**
+	 * @dataProvider takeOutCurrentUserProvider
+	 * @param array $users
+	 * @param array $expectedUIDs
+	 * @param $currentUserId
+	 */
+	public function testTakeOutCurrentUser(array $users, array $expectedUIDs, $currentUserId) {
+		$this->instantiatePlugin();
+
+		$this->session->expects($this->once())
+			->method('getUser')
+			->willReturnCallback(function() use ($currentUserId) {
+				if($currentUserId !== null) {
+					return $this->getUserMock($currentUserId, $currentUserId);
+				}
+				return null;
+			});
+
+		$this->plugin->takeOutCurrentUser($users);
+		$this->assertSame($expectedUIDs, array_keys($users));
+	}
 }
diff --git a/tests/lib/Comments/CommentTest.php b/tests/lib/Comments/CommentTest.php
index 10ec4bae7d5..6f67356ccae 100644
--- a/tests/lib/Comments/CommentTest.php
+++ b/tests/lib/Comments/CommentTest.php
@@ -8,6 +8,9 @@ use Test\TestCase;
 
 class CommentTest extends TestCase {
 
+	/**
+	 * @throws \OCP\Comments\IllegalIDChangeException
+	 */
 	public function testSettersValidInput() {
 		$comment = new Comment();
 
@@ -58,6 +61,9 @@ class CommentTest extends TestCase {
 		$comment->setId('c17');
 	}
 
+	/**
+	 * @throws \OCP\Comments\IllegalIDChangeException
+	 */
 	public function testResetId() {
 		$comment = new Comment();
 		$comment->setId('c23');
@@ -133,7 +139,7 @@ class CommentTest extends TestCase {
 				'@alice @bob look look, a duplication @alice test @bob!', ['alice', 'bob']
 			],
 			[
-				'@alice is the author, but notify @bob!', ['bob'], 'alice'
+				'@alice is the author, notify @bob, nevertheless mention her!', ['alice', 'bob'], 'alice'
 			],
 			[
 				'@foobar and @barfoo you should know, @foo@bar.com is valid' .
@@ -159,7 +165,6 @@ class CommentTest extends TestCase {
 			$uid = array_shift($expectedUids);
 			$this->assertSame('user', $mention['type']);
 			$this->assertSame($uid, $mention['id']);
-			$this->assertNotSame($author, $mention['id']);
 		}
 		$this->assertEmpty($mentions);
 		$this->assertEmpty($expectedUids);