1 files changed, 63 insertions, 0 deletions
diff --git a/mobile/android/base/java/org/mozilla/gecko/dlc/VerifyAction.java b/mobile/android/base/java/org/mozilla/gecko/dlc/VerifyAction.java
new file mode 100644
index 000000000..e96a62eae
--- /dev/null
+++ b/mobile/android/base/java/org/mozilla/gecko/dlc/VerifyAction.java
@@ -0,0 +1,63 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.dlc;
+
+import android.content.Context;
+import android.util.Log;
+
+import org.mozilla.gecko.dlc.catalog.DownloadContent;
+import org.mozilla.gecko.dlc.catalog.DownloadContentCatalog;
+
+import java.io.File;
+
+/**
+ * Verify: Validate downloaded content. Does it still exist and does it have the correct checksum?
+ */
+public class VerifyAction extends BaseAction {
+    private static final String LOGTAG = "DLCVerifyAction";
+
+    @Override
+    public void perform(Context context, DownloadContentCatalog catalog) {
+        Log.d(LOGTAG, "Verifying catalog..");
+
+        for (DownloadContent content : catalog.getDownloadedContent()) {
+            try {
+                File destinationFile = getDestinationFile(context, content);
+
+                if (!destinationFile.exists()) {
+                    Log.d(LOGTAG, "Downloaded content does not exist anymore: " + content);
+
+                    // This file does not exist even though it is marked as downloaded in the catalog. Scheduling a
+                    // download to fetch it again.
+                    catalog.scheduleDownload(content);
+                    continue;
+                }
+
+                if (!verify(destinationFile, content.getChecksum())) {
+                    catalog.scheduleDownload(content);
+                    Log.d(LOGTAG, "Wrong checksum. Scheduling download: " + content);
+                    continue;
+                }
+
+                Log.v(LOGTAG, "Content okay: " + content);
+            } catch (UnrecoverableDownloadContentException e) {
+                Log.w(LOGTAG, "Unrecoverable exception while verifying downloaded file", e);
+            } catch (RecoverableDownloadContentException e) {
+                // That's okay, we are just verifying already existing content. No log.
+            }
+        }
+
+        if (catalog.hasScheduledDownloads()) {
+            startDownloads(context);
+        }
+
+        Log.v(LOGTAG, "Done");
+    }
+
+    protected void startDownloads(Context context) {
+        DownloadContentService.startDownloads(context);
+    }
+}