1 files changed, 134 insertions, 0 deletions
diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/mozglue/SafeIntent.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/mozglue/SafeIntent.java
new file mode 100644
index 000000000..6942962fe
--- /dev/null
+++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/mozglue/SafeIntent.java
@@ -0,0 +1,134 @@
+/*
+ * 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/.
+ */
+
+// This should be in util/, but is here because of build dependency issues.
+package org.mozilla.gecko.mozglue;
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+
+import java.util.ArrayList;
+
+/**
+ * External applications can pass values into Intents that can cause us to crash: in defense,
+ * we wrap {@link Intent} and catch the exceptions they may force us to throw. See bug 1090385
+ * for more.
+ */
+public class SafeIntent {
+    private static final String LOGTAG = "Gecko" + SafeIntent.class.getSimpleName();
+
+    private final Intent intent;
+
+    public SafeIntent(final Intent intent) {
+        this.intent = intent;
+    }
+
+    public boolean hasExtra(String name) {
+        try {
+            return intent.hasExtra(name);
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't determine if intent had an extra: OOM. Malformed?");
+            return false;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't determine if intent had an extra.", e);
+            return false;
+        }
+    }
+
+    public boolean getBooleanExtra(final String name, final boolean defaultValue) {
+        try {
+            return intent.getBooleanExtra(name, defaultValue);
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent extras: OOM. Malformed?");
+            return defaultValue;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent extras.", e);
+            return defaultValue;
+        }
+    }
+
+    public int getIntExtra(final String name, final int defaultValue) {
+        try {
+            return intent.getIntExtra(name, defaultValue);
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent extras: OOM. Malformed?");
+            return defaultValue;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent extras.", e);
+            return defaultValue;
+        }
+    }
+
+    public String getStringExtra(final String name) {
+        try {
+            return intent.getStringExtra(name);
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent extras: OOM. Malformed?");
+            return null;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent extras.", e);
+            return null;
+        }
+    }
+
+    public Bundle getBundleExtra(final String name) {
+        try {
+            return intent.getBundleExtra(name);
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent extras: OOM. Malformed?");
+            return null;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent extras.", e);
+            return null;
+        }
+    }
+
+    public String getAction() {
+        return intent.getAction();
+    }
+
+    public String getDataString() {
+        try {
+            return intent.getDataString();
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent data string: OOM. Malformed?");
+            return null;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent data string.", e);
+            return null;
+        }
+    }
+
+    public ArrayList<String> getStringArrayListExtra(final String name) {
+        try {
+            return intent.getStringArrayListExtra(name);
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent data string: OOM. Malformed?");
+            return null;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent data string.", e);
+            return null;
+        }
+    }
+
+    public Uri getData() {
+        try {
+            return intent.getData();
+        } catch (OutOfMemoryError e) {
+            Log.w(LOGTAG, "Couldn't get intent data: OOM. Malformed?");
+            return null;
+        } catch (RuntimeException e) {
+            Log.w(LOGTAG, "Couldn't get intent data.", e);
+            return null;
+        }
+    }
+
+    public Intent getUnsafe() {
+        return intent;
+    }
+}