X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/06490f624c3923e945bf86a2930ff85c062a0bad..refs/pull/5725/head:/app/Uploads/UserAvatars.php

diff --git a/app/Uploads/UserAvatars.php b/app/Uploads/UserAvatars.php
index 9692b3f38..0cc640f22 100644
--- a/app/Uploads/UserAvatars.php
+++ b/app/Uploads/UserAvatars.php
@@ -5,6 +5,7 @@ namespace BookStack\Uploads;
 use BookStack\Exceptions\HttpFetchException;
 use BookStack\Http\HttpRequestService;
 use BookStack\Users\Models\User;
+use BookStack\Util\WebSafeMimeSniffer;
 use Exception;
 use GuzzleHttp\Psr7\Request;
 use Illuminate\Support\Facades\Log;
@@ -53,10 +54,37 @@ class UserAvatars
         }
     }
 
+    /**
+     * Assign a new avatar image to the given user by fetching from a remote URL.
+     */
+    public function assignToUserFromUrl(User $user, string $avatarUrl): void
+    {
+        try {
+            $this->destroyAllForUser($user);
+            $imageData = $this->getAvatarImageData($avatarUrl);
+
+            $mime = (new WebSafeMimeSniffer())->sniff($imageData);
+            [$format, $type] = explode('/', $mime, 2);
+            if ($format !== 'image' || !ImageService::isExtensionSupported($type)) {
+                return;
+            }
+
+            $avatar = $this->createAvatarImageFromData($user, $imageData, $type);
+            $user->avatar()->associate($avatar);
+            $user->save();
+        } catch (Exception $e) {
+            Log::error('Failed to save user avatar image from URL', [
+                'exception' => $e->getMessage(),
+                'url'       => $avatarUrl,
+                'user_id'   => $user->id,
+            ]);
+        }
+    }
+
     /**
      * Destroy all user avatars uploaded to the given user.
      */
-    public function destroyAllForUser(User $user)
+    public function destroyAllForUser(User $user): void
     {
         $profileImages = Image::query()->where('type', '=', 'user')
             ->where('uploaded_to', '=', $user->id)
@@ -70,7 +98,7 @@ class UserAvatars
     /**
      * Save an avatar image from an external service.
      *
-     * @throws Exception
+     * @throws HttpFetchException
      */
     protected function saveAvatarImage(User $user, int $size = 500): Image
     {
@@ -105,7 +133,7 @@ class UserAvatars
     }
 
     /**
-     * Gets an image from url and returns it as a string of image data.
+     * Get an image from a URL and return it as a string of image data.
      *
      * @throws HttpFetchException
      */
@@ -113,19 +141,33 @@ class UserAvatars
     {
         try {
             $client = $this->http->buildClient(5);
-            $response = $client->sendRequest(new Request('GET', $url));
-            $imageData = (string) $response->getBody();
+            $responseCount = 0;
+
+            do {
+                $response = $client->sendRequest(new Request('GET', $url));
+                $responseCount++;
+                $isRedirect = ($response->getStatusCode() === 301 || $response->getStatusCode() === 302);
+                $url = $response->getHeader('Location')[0] ?? '';
+            } while ($responseCount < 3 && $isRedirect && is_string($url) && str_starts_with($url, 'http'));
+
+            if ($responseCount === 3) {
+                throw new HttpFetchException("Failed to fetch image, max redirect limit of 3 tries reached. Last fetched URL: {$url}");
+            }
+
+            if ($response->getStatusCode() !== 200) {
+                throw new HttpFetchException(trans('errors.cannot_get_image_from_url', ['url' => $url]));
+            }
+
+            return (string) $response->getBody();
         } catch (ClientExceptionInterface $exception) {
             throw new HttpFetchException(trans('errors.cannot_get_image_from_url', ['url' => $url]), $exception->getCode(), $exception);
         }
-
-        return $imageData;
     }
 
     /**
      * Check if fetching external avatars is enabled.
      */
-    protected function avatarFetchEnabled(): bool
+    public function avatarFetchEnabled(): bool
     {
         $fetchUrl = $this->getAvatarUrl();
 
@@ -135,7 +177,7 @@ class UserAvatars
     /**
      * Get the URL to fetch avatars from.
      */
-    protected function getAvatarUrl(): string
+    public function getAvatarUrl(): string
     {
         $configOption = config('services.avatar_url');
         if ($configOption === false) {