Use new function to check for a local avatar cache file

src/Content/Conversation.php

@@ -662,11 +662,22 @@ class Conversation
 					if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 						$owner_avatar  = $author_avatar  = $item['contact-id'];
 						$owner_updated = $author_updated = '';
+						$owner_thumb   = $author_thumb   = $item['contact-avatar'];
 					} else {
 						$owner_avatar   = $item['owner-id'];
 						$owner_updated  = $item['owner-updated'];
+						$owner_thumb    = $item['owner-avatar'];
 						$author_avatar  = $item['author-id'];
 						$author_updated = $item['author-updated'];
+						$author_thumb   = $item['author-avatar'];
+					}
+
+					if (!Contact::isAvatarFile($owner_thumb)) {
+						$owner_thumb = Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated);
+					}
+
+					if (!Contact::isAvatarFile($author_thumb)) {
+						$author_thumb = Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated);
 					}
 
 					$tmp_item = [
@@ -686,7 +697,7 @@ class Conversation
 						'name'                 => $profile_name,
 						'sparkle'              => $sparkle,
 						'lock'                 => false,
-						'thumb'                => $this->baseURL->remove(Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated)),
+						'thumb'                => $this->baseURL->remove($author_thumb),
 						'title'                => $title,
 						'body_html'            => $body_html,
 						'tags'                 => $tags['tags'],
@@ -707,7 +718,7 @@ class Conversation
 						'indent'               => '',
 						'owner_name'           => '',
 						'owner_url'            => '',
-						'owner_photo'          => $this->baseURL->remove(Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated)),
+						'owner_photo'          => $this->baseURL->remove($owner_thumb),
 						'plink'                => ItemModel::getPlink($item),
 						'edpost'               => false,
 						'pinned'               => $pinned,

src/Model/Contact.php

@@ -1587,7 +1587,7 @@ class Contact
 				self::updateAvatar($cid, $contact['avatar'], true);
 				return;
 			}
-		} elseif (!self::getAvatarFile($contact['photo']) || !self::getAvatarFile($contact['thumb']) || !self::getAvatarFile($contact['micro'])) {
+		} elseif (!self::isAvatarFile($contact['photo']) || !self::isAvatarFile($contact['thumb']) || !self::isAvatarFile($contact['micro'])) {
 			Logger::info('Removing/replacing avatar cache', ['id' => $cid, 'contact' => $contact]);
 			self::updateAvatar($cid, $contact['avatar'], true);
 			return;
@@ -1611,17 +1611,17 @@ class Contact
 		if (DI::config()->get('system', 'avatar_cache')) {
 			switch ($size) {
 				case Proxy::SIZE_MICRO:
-					if (self::getAvatarFile($contact['micro'])) {
+					if (self::isAvatarFile($contact['micro'])) {
 						return $contact['micro'];
 					}
 					break;
 				case Proxy::SIZE_THUMB:
-					if (self::getAvatarFile($contact['thumb'])) {
+					if (self::isAvatarFile($contact['thumb'])) {
 						return $contact['thumb'];
 					}
 					break;
 				case Proxy::SIZE_SMALL:
-					if (self::getAvatarFile($contact['photo'])) {
+					if (self::isAvatarFile($contact['photo'])) {
 						return $contact['photo'];
 					}
 					break;
@@ -2091,7 +2091,7 @@ class Contact
 			self::deleteAvatarCache($contact['thumb']);
 			self::deleteAvatarCache($contact['micro']);
 			Logger::debug('Avatar file name changed', ['new' => $avatar, 'old' => $contact['avatar']]);
-		} elseif (self::getAvatarFile($contact['photo']) && self::getAvatarFile($contact['thumb']) && self::getAvatarFile($contact['micro'])) {
+		} elseif (self::isAvatarFile($contact['photo']) && self::isAvatarFile($contact['thumb']) && self::isAvatarFile($contact['micro'])) {
 			$fields['photo'] = $contact['photo'];
 			$fields['thumb'] = $contact['thumb'];
 			$fields['micro'] = $contact['micro'];
@@ -2181,6 +2181,17 @@ class Contact
 		return $filename;
 	}
 
+	/**
+	 * Check if the avatar cache file is locally stored
+	 *
+	 * @param string $avatar
+	 * @return boolean
+	 */
+	public static function isAvatarFile(string $avatar): bool
+	{
+		return !empty(self::getAvatarFile($avatar));
+	}
+
 	/**
 	 * Delete a locally cached avatar picture
 	 *

src/Object/Post.php

@@ -123,8 +123,8 @@ class Post
 	/**
 	 * Fetch the privacy of the post
 	 *
-	 * @param array $item 
+	 * @param array $item
-	 * @return string 
+	 * @return string
 	 */
 	private function fetchPrivacy(array $item):string
 	{
@@ -453,11 +453,22 @@ class Post
 		if (in_array($item['network'], [Protocol::FEED, Protocol::MAIL])) {
 			$owner_avatar  = $author_avatar  = $item['contact-id'];
 			$owner_updated = $author_updated = '';
+			$owner_thumb   = $author_thumb   = $item['contact-avatar'];
 		} else {
 			$owner_avatar   = $item['owner-id'];
 			$owner_updated  = $item['owner-updated'];
+			$owner_thumb    = $item['owner-avatar'];
 			$author_avatar  = $item['author-id'];
 			$author_updated = $item['author-updated'];
+			$author_thumb   = $item['author-avatar'];
+		}
+
+		if (!Contact::isAvatarFile($owner_thumb)) {
+			$owner_thumb = Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated);
+		}
+
+		if (!Contact::isAvatarFile($author_thumb)) {
+			$author_thumb = Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated);
 		}
 
 		$tmp_item = [
@@ -491,7 +502,7 @@ class Post
 			'profile_url'     => $profile_link,
 			'name'            => $profile_name,
 			'item_photo_menu_html' => DI::contentItem()->photoMenu($item, $formSecurityToken),
-			'thumb'           => DI::baseUrl()->remove(Contact::getAvatarUrlForId($author_avatar, Proxy::SIZE_THUMB, $author_updated)),
+			'thumb'           => DI::baseUrl()->remove($author_thumb),
 			'osparkle'        => $osparkle,
 			'sparkle'         => $sparkle,
 			'title'           => $title,
@@ -508,7 +519,7 @@ class Post
 			'shiny'           => $shiny,
 			'owner_self'      => $item['author-link'] == Session::get('my_url'),
 			'owner_url'       => $this->getOwnerUrl(),
-			'owner_photo'     => DI::baseUrl()->remove(Contact::getAvatarUrlForId($owner_avatar, Proxy::SIZE_THUMB, $owner_updated)),
+			'owner_photo'     => DI::baseUrl()->remove($owner_thumb),
 			'owner_name'      => $this->getOwnerName(),
 			'plink'           => Item::getPlink($item),
 			'browsershare'    => $browsershare,