From 13f58abe05f72832a7910e43fd20c931d4cc7b0f Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <mrpetovan@gmail.com>
Date: Sat, 24 Mar 2018 20:03:28 -0400
Subject: [PATCH 1/2] Add parameter check in Image::getInfoFromURL

---
 src/Object/Image.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/Object/Image.php b/src/Object/Image.php
index 2f4d55dc0..9692b8471 100644
--- a/src/Object/Image.php
+++ b/src/Object/Image.php
@@ -771,6 +771,10 @@ class Image
 	{
 		$data = [];
 
+		if (empty($url)) {
+			return $data;
+		}
+
 		$data = Cache::get($url);
 
 		if (is_null($data) || !$data || !is_array($data)) {

From 09f04c19856d4e17a757927c9bb3a03566da54d4 Mon Sep 17 00:00:00 2001
From: Hypolite Petovan <mrpetovan@gmail.com>
Date: Sat, 24 Mar 2018 20:03:55 -0400
Subject: [PATCH 2/2] Add Image::getInfoFromURL return check

---
 src/Content/Text/BBCode.php | 12 +++++++-----
 src/Protocol/OStatus.php    | 26 +++++++++++++++-----------
 2 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/src/Content/Text/BBCode.php b/src/Content/Text/BBCode.php
index ebaef2b29..7d1c42976 100644
--- a/src/Content/Text/BBCode.php
+++ b/src/Content/Text/BBCode.php
@@ -76,10 +76,12 @@ class BBCode extends BaseObject
 
 					$picturedata = Image::getInfoFromURL($matches[1]);
 
-					if (($picturedata[0] >= 500) && ($picturedata[0] >= $picturedata[1])) {
-						$post["image"] = $matches[1];
-					} else {
-						$post["preview"] = $matches[1];
+					if ($picturedata) {
+						if (($picturedata[0] >= 500) && ($picturedata[0] >= $picturedata[1])) {
+							$post["image"] = $matches[1];
+						} else {
+							$post["preview"] = $matches[1];
+						}
 					}
 				}
 
@@ -266,7 +268,7 @@ class BBCode extends BaseObject
 						$post["text"] = str_replace($pictures[0][0], "", $body);
 					} else {
 						$imgdata = Image::getInfoFromURL($pictures[0][1]);
-						if (substr($imgdata["mime"], 0, 6) == "image/") {
+						if ($imgdata && substr($imgdata["mime"], 0, 6) == "image/") {
 							$post["type"] = "photo";
 							$post["image"] = $pictures[0][1];
 							$post["preview"] = $pictures[0][2];
diff --git a/src/Protocol/OStatus.php b/src/Protocol/OStatus.php
index 602d178bc..8b6939214 100644
--- a/src/Protocol/OStatus.php
+++ b/src/Protocol/OStatus.php
@@ -1313,7 +1313,7 @@ class OStatus
 	}
 
 	/**
-	 * @brief Adds attachement data to the XML document
+	 * @brief Adds attachment data to the XML document
 	 *
 	 * @param object $doc  XML document
 	 * @param object $root XML root element where the hub links are added
@@ -1328,11 +1328,13 @@ class OStatus
 		switch ($siteinfo["type"]) {
 			case 'photo':
 				$imgdata = Image::getInfoFromURL($siteinfo["image"]);
-				$attributes = ["rel" => "enclosure",
-						"href" => $siteinfo["image"],
-						"type" => $imgdata["mime"],
-						"length" => intval($imgdata["size"])];
-				XML::addElement($doc, $root, "link", "", $attributes);
+				if ($imgdata) {
+					$attributes = ["rel" => "enclosure",
+							"href" => $siteinfo["image"],
+							"type" => $imgdata["mime"],
+							"length" => intval($imgdata["size"])];
+					XML::addElement($doc, $root, "link", "", $attributes);
+				}
 				break;
 			case 'video':
 				$attributes = ["rel" => "enclosure",
@@ -1348,12 +1350,14 @@ class OStatus
 
 		if (!Config::get('system', 'ostatus_not_attach_preview') && ($siteinfo["type"] != "photo") && isset($siteinfo["image"])) {
 			$imgdata = Image::getInfoFromURL($siteinfo["image"]);
-			$attributes = ["rel" => "enclosure",
-					"href" => $siteinfo["image"],
-					"type" => $imgdata["mime"],
-					"length" => intval($imgdata["size"])];
+			if ($imgdata) {
+				$attributes = ["rel" => "enclosure",
+						"href" => $siteinfo["image"],
+						"type" => $imgdata["mime"],
+						"length" => intval($imgdata["size"])];
 
-			XML::addElement($doc, $root, "link", "", $attributes);
+				XML::addElement($doc, $root, "link", "", $attributes);
+			}
 		}
 
 		$arr = explode('[/attach],', $item['attach']);