Quick fix for broken attachments.

app/Console/Commands/ScanAttachments.php

@@ -0,0 +1,99 @@
+<?php
+/**
+ * ScanAttachments.php
+ * Copyright (C) 2016 thegrumpydictator@gmail.com
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license.  See the LICENSE file for details.
+ */
+
+declare(strict_types = 1);
+
+namespace FireflyIII\Console\Commands;
+
+use Crypt;
+use FireflyIII\Models\Attachment;
+use Illuminate\Console\Command;
+use Illuminate\Contracts\Encryption\DecryptException;
+use Illuminate\Contracts\Filesystem\FileNotFoundException;
+use Storage;
+
+/**
+ * Class ScanAttachments
+ *
+ * @package FireflyIII\Console\Commands
+ */
+class ScanAttachments extends Command
+{
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'Rescan all attachments and re-set the MD5 hash and mime.';
+
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'firefly:scan-attachments';
+
+    /**
+     * Create a new command instance.
+     *
+     */
+    public function __construct()
+    {
+        parent::__construct();
+    }
+
+    /**
+     * Execute the console command.
+     */
+    public function handle()
+    {
+        $attachments = Attachment::get();
+        $disk        = Storage::disk('upload');
+        /** @var Attachment $attachment */
+        foreach ($attachments as $attachment) {
+            $fileName = $attachment->fileName();
+
+            // try to grab file content:
+            try {
+                $content = $disk->get($fileName);
+            } catch (FileNotFoundException $e) {
+                $this->error(sprintf('Could not find data for attachment #%d', $attachment->id));
+                continue;
+            }
+            // try to decrypt content.
+            try {
+                $decrypted = Crypt::decrypt($content);
+            } catch (DecryptException $e) {
+                $this->error(sprintf('Could not decrypt data of attachment #%d', $attachment->id));
+                continue;
+            }
+
+            // make temp file:
+            $tmpfname = tempnam(sys_get_temp_dir(), 'FireflyIII');
+
+            // store content in temp file:
+            file_put_contents($tmpfname, $decrypted);
+
+            // get md5 and mime
+            $md5  = md5_file($tmpfname);
+            $mime = mime_content_type($tmpfname);
+
+            // update attachment:
+            $attachment->md5  = $md5;
+            $attachment->mime = $mime;
+            $attachment->save();
+
+
+            $this->line(sprintf('Fixed attachment #%d', $attachment->id));
+
+            // find file:
+
+        }
+    }
+}

app/Console/Kernel.php

@@ -13,6 +13,7 @@ namespace FireflyIII\Console;
 
 use FireflyIII\Console\Commands\EncryptFile;
 use FireflyIII\Console\Commands\Import;
+use FireflyIII\Console\Commands\ScanAttachments;
 use FireflyIII\Console\Commands\UpgradeFireflyInstructions;
 use FireflyIII\Console\Commands\VerifyDatabase;
 use Illuminate\Console\Scheduling\Schedule;
@@ -55,6 +56,7 @@ class Kernel extends ConsoleKernel
             VerifyDatabase::class,
             Import::class,
             EncryptFile::class,
+            ScanAttachments::class,
 
         ];