From 9f9fb637b87170fb4620d8151c758043d33707e9 Mon Sep 17 00:00:00 2001
From: Tom Marshall <tdm.code@gmail.com>
Date: Fri, 1 Jun 2012 15:20:26 -0700
Subject: [PATCH] Initial commit.

This is (mostly) functional.  Still needs some cleanup.
---
 .gitignore                                    |   3 +
 AndroidManifest.xml                           |  33 ++
 ant.properties                                |  17 +
 build.xml                                     |  83 +++++
 main.xml                                      |   7 +
 proguard-project.txt                          |  20 +
 proguard.cfg                                  |  36 ++
 project.properties                            |  14 +
 res/drawable-hdpi/ic_menu_compose.png         | Bin 0 -> 2324 bytes
 res/drawable-hdpi/ic_menu_delete.png          | Bin 0 -> 2029 bytes
 res/drawable-hdpi/ic_menu_discard.png         | Bin 0 -> 3698 bytes
 res/drawable-hdpi/ic_menu_edit.png            | Bin 0 -> 2399 bytes
 res/drawable-hdpi/ic_menu_fetch.png           | Bin 0 -> 534 bytes
 res/drawable-hdpi/ic_menu_install.png         | Bin 0 -> 534 bytes
 res/drawable-hdpi/ic_menu_refresh.png         | Bin 0 -> 922 bytes
 res/drawable-hdpi/ic_menu_revert.png          | Bin 0 -> 2093 bytes
 res/drawable-hdpi/ic_menu_save.png            | Bin 0 -> 2050 bytes
 res/drawable-hdpi/ic_menu_settings.png        | Bin 0 -> 2324 bytes
 res/drawable-hdpi/icon.png                    | Bin 0 -> 8435 bytes
 res/drawable-ldpi/icon.png                    | Bin 0 -> 2993 bytes
 res/drawable-mdpi/icon.png                    | Bin 0 -> 7687 bytes
 res/layout/list_item.xml                      |   7 +
 res/layout/romlist.xml                        |  10 +
 res/layout/romlist_entry.xml                  |  11 +
 res/menu/romdetail_options_menu.xml           |  11 +
 res/menu/romlist_options_menu.xml             |  11 +
 res/values/arrays.xml                         |  12 +
 res/values/strings.xml                        |  23 ++
 res/xml/preferences.xml                       |  25 ++
 src/tdm/romkeeper/BrowserFileDownloader.java  |  93 +++++
 src/tdm/romkeeper/BrowserFilePatcher.java     | 109 ++++++
 src/tdm/romkeeper/DbAdapter.java              | 193 ++++++++++
 .../FileDownloadProgressUpdater.java          |  72 ++++
 src/tdm/romkeeper/FileDownloadService.java    | 348 ++++++++++++++++++
 src/tdm/romkeeper/FileDownloader.java         |  92 +++++
 src/tdm/romkeeper/FilePatcher.java            | 122 ++++++
 src/tdm/romkeeper/FileVerifier.java           |  93 +++++
 src/tdm/romkeeper/HttpFileDownloader.java     |  57 +++
 src/tdm/romkeeper/HttpFilePatcher.java        |  68 ++++
 src/tdm/romkeeper/ManifestCheckerService.java | 190 ++++++++++
 src/tdm/romkeeper/ManifestFetcher.java        |  79 ++++
 src/tdm/romkeeper/ManifestReader.java         |  77 ++++
 src/tdm/romkeeper/Rom.java                    | 112 ++++++
 src/tdm/romkeeper/RomDataProvider.java.hide   | 210 +++++++++++
 src/tdm/romkeeper/RomKeeperActivity.java      | 316 ++++++++++++++++
 .../RomKeeperPreferenceActivity.java          |  14 +
 src/tdm/romkeeper/StartupReceiver.java        |  25 ++
 src/tdm/romkeeper/StreamListener.java         |   7 +
 48 files changed, 2600 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 AndroidManifest.xml
 create mode 100644 ant.properties
 create mode 100644 build.xml
 create mode 100644 main.xml
 create mode 100644 proguard-project.txt
 create mode 100644 proguard.cfg
 create mode 100644 project.properties
 create mode 100644 res/drawable-hdpi/ic_menu_compose.png
 create mode 100644 res/drawable-hdpi/ic_menu_delete.png
 create mode 100644 res/drawable-hdpi/ic_menu_discard.png
 create mode 100644 res/drawable-hdpi/ic_menu_edit.png
 create mode 100644 res/drawable-hdpi/ic_menu_fetch.png
 create mode 100644 res/drawable-hdpi/ic_menu_install.png
 create mode 100644 res/drawable-hdpi/ic_menu_refresh.png
 create mode 100644 res/drawable-hdpi/ic_menu_revert.png
 create mode 100644 res/drawable-hdpi/ic_menu_save.png
 create mode 100644 res/drawable-hdpi/ic_menu_settings.png
 create mode 100644 res/drawable-hdpi/icon.png
 create mode 100644 res/drawable-ldpi/icon.png
 create mode 100644 res/drawable-mdpi/icon.png
 create mode 100644 res/layout/list_item.xml
 create mode 100644 res/layout/romlist.xml
 create mode 100644 res/layout/romlist_entry.xml
 create mode 100644 res/menu/romdetail_options_menu.xml
 create mode 100644 res/menu/romlist_options_menu.xml
 create mode 100644 res/values/arrays.xml
 create mode 100644 res/values/strings.xml
 create mode 100644 res/xml/preferences.xml
 create mode 100644 src/tdm/romkeeper/BrowserFileDownloader.java
 create mode 100644 src/tdm/romkeeper/BrowserFilePatcher.java
 create mode 100644 src/tdm/romkeeper/DbAdapter.java
 create mode 100644 src/tdm/romkeeper/FileDownloadProgressUpdater.java
 create mode 100644 src/tdm/romkeeper/FileDownloadService.java
 create mode 100644 src/tdm/romkeeper/FileDownloader.java
 create mode 100644 src/tdm/romkeeper/FilePatcher.java
 create mode 100644 src/tdm/romkeeper/FileVerifier.java
 create mode 100644 src/tdm/romkeeper/HttpFileDownloader.java
 create mode 100644 src/tdm/romkeeper/HttpFilePatcher.java
 create mode 100644 src/tdm/romkeeper/ManifestCheckerService.java
 create mode 100644 src/tdm/romkeeper/ManifestFetcher.java
 create mode 100644 src/tdm/romkeeper/ManifestReader.java
 create mode 100644 src/tdm/romkeeper/Rom.java
 create mode 100644 src/tdm/romkeeper/RomDataProvider.java.hide
 create mode 100644 src/tdm/romkeeper/RomKeeperActivity.java
 create mode 100644 src/tdm/romkeeper/RomKeeperPreferenceActivity.java
 create mode 100644 src/tdm/romkeeper/StartupReceiver.java
 create mode 100644 src/tdm/romkeeper/StreamListener.java

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f31c53d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+local.properties
+bin/*
+gen/*
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
new file mode 100644
index 0000000..440b167
--- /dev/null
+++ b/AndroidManifest.xml
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+      package="tdm.romkeeper"
+      android:versionCode="1"
+      android:versionName="1.0">
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+    <!-- uses-permission android:name="android.permission.REBOOT" / -->
+    <application android:label="@string/app_name" android:icon="@drawable/icon">
+        <activity android:name="RomKeeperActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity android:name="RomKeeperPreferenceActivity"
+                  android:label="@string/app_name">
+        </activity>
+        <service android:name=".FileDownloadService"
+                 android:label="@string/file_download_service_name">
+        </service>
+        <service android:name=".ManifestCheckerService"
+                 android:label="@string/manifest_checker_service_name">
+        </service>
+        <receiver android:name=".StartupReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+    </application>
+</manifest> 
diff --git a/ant.properties b/ant.properties
new file mode 100644
index 0000000..b0971e8
--- /dev/null
+++ b/ant.properties
@@ -0,0 +1,17 @@
+# This file is used to override default values used by the Ant build system.
+#
+# This file must be checked into Version Control Systems, as it is
+# integral to the build system of your project.
+
+# This file is only used by the Ant script.
+
+# You can use this to override default values such as
+#  'source.dir' for the location of your java source folder and
+#  'out.dir' for the location of your output folder.
+
+# You can also use it define how the release builds are signed by declaring
+# the following properties:
+#  'key.store' for the location of your keystore and
+#  'key.alias' for the name of the key to use.
+# The password will be asked during the build when you use the 'release' target.
+
diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..eaecd6f
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project name="RomKeeper" default="help">
+
+    <!-- The local.properties file is created and updated by the 'android' tool.
+         It contains the path to the SDK. It should *NOT* be checked into
+         Version Control Systems. -->
+    <property file="local.properties" />
+
+    <!-- The ant.properties file can be created by you. It is only edited by the
+         'android' tool to add properties to it.
+         This is the place to change some Ant specific build properties.
+         Here are some properties you may want to change/update:
+
+         source.dir
+             The name of the source directory. Default is 'src'.
+         out.dir
+             The name of the output directory. Default is 'bin'.
+
+         For other overridable properties, look at the beginning of the rules
+         files in the SDK, at tools/ant/build.xml
+
+         Properties related to the SDK location or the project target should
+         be updated using the 'android' tool with the 'update' action.
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems.
+
+         -->
+    <property file="ant.properties" />
+
+    <!-- The project.properties file is created and updated by the 'android'
+         tool, as well as ADT.
+
+         This contains project specific properties such as project target, and library
+         dependencies. Lower level build properties are stored in ant.properties
+         (or in .classpath for Eclipse projects).
+
+         This file is an integral part of the build system for your
+         application and should be checked into Version Control Systems. -->
+    <loadproperties srcFile="project.properties" />
+
+    <!-- quick check on sdk.dir -->
+    <fail
+            message="sdk.dir is missing. Make sure to generate local.properties using 'android update project' or to inject it through an env var"
+            unless="sdk.dir"
+    />
+
+    <!--
+        Import per project custom build rules if present at the root of the project.
+        This is the place to put custom intermediary targets such as:
+            -pre-build
+            -pre-compile
+            -post-compile (This is typically used for code obfuscation.
+                           Compiled code location: ${out.classes.absolute.dir}
+                           If this is not done in place, override ${out.dex.input.absolute.dir})
+            -post-package
+            -post-build
+            -pre-clean
+    -->
+    <import file="custom_rules.xml" optional="true" />
+
+    <!-- Import the actual build file.
+
+         To customize existing targets, there are two options:
+         - Customize only one target:
+             - copy/paste the target into this file, *before* the
+               <import> task.
+             - customize it to your needs.
+         - Customize the whole content of build.xml
+             - copy/paste the content of the rules files (minus the top node)
+               into this file, replacing the <import> task.
+             - customize to your needs.
+
+         ***********************
+         ****** IMPORTANT ******
+         ***********************
+         In all cases you must update the value of version-tag below to read 'custom' instead of an integer,
+         in order to avoid having your file be overridden by tools such as "android update project"
+    -->
+    <!-- version-tag: 1 -->
+    <import file="${sdk.dir}/tools/ant/build.xml" />
+
+</project>
diff --git a/main.xml b/main.xml
new file mode 100644
index 0000000..f02c9fd
--- /dev/null
+++ b/main.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    >
+</AbsoluteLayout>
+
diff --git a/proguard-project.txt b/proguard-project.txt
new file mode 100644
index 0000000..f2fe155
--- /dev/null
+++ b/proguard-project.txt
@@ -0,0 +1,20 @@
+# To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/proguard.cfg b/proguard.cfg
new file mode 100644
index 0000000..12dd039
--- /dev/null
+++ b/proguard.cfg
@@ -0,0 +1,36 @@
+-optimizationpasses 5
+-dontusemixedcaseclassnames
+-dontskipnonpubliclibraryclasses
+-dontpreverify
+-verbose
+-optimizations !code/simplification/arithmetic,!field/*,!class/merging/*
+
+-keep public class * extends android.app.Activity
+-keep public class * extends android.app.Application
+-keep public class * extends android.app.Service
+-keep public class * extends android.content.BroadcastReceiver
+-keep public class * extends android.content.ContentProvider
+-keep public class * extends android.app.backup.BackupAgentHelper
+-keep public class * extends android.preference.Preference
+-keep public class com.android.vending.licensing.ILicensingService
+
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+-keepclasseswithmembernames class * {
+    public <init>(android.content.Context, android.util.AttributeSet);
+}
+
+-keepclasseswithmembernames class * {
+    public <init>(android.content.Context, android.util.AttributeSet, int);
+}
+
+-keepclassmembers enum * {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+-keep class * implements android.os.Parcelable {
+  public static final android.os.Parcelable$Creator *;
+}
diff --git a/project.properties b/project.properties
new file mode 100644
index 0000000..b7c2081
--- /dev/null
+++ b/project.properties
@@ -0,0 +1,14 @@
+# This file is automatically generated by Android Tools.
+# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
+#
+# This file must be checked in Version Control Systems.
+#
+# To customize properties used by the Ant build system edit
+# "ant.properties", and override values to adapt the script to your
+# project structure.
+#
+# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
+#proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
+
+# Project target.
+target=android-10
diff --git a/res/drawable-hdpi/ic_menu_compose.png b/res/drawable-hdpi/ic_menu_compose.png
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new file mode 100644
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B^Edzi

literal 0
HcmV?d00001

diff --git a/res/layout/list_item.xml b/res/layout/list_item.xml
new file mode 100644
index 0000000..fdf5a0b
--- /dev/null
+++ b/res/layout/list_item.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:padding="10dp"
+    android:textSize="16sp" >
+</TextView>
diff --git a/res/layout/romlist.xml b/res/layout/romlist.xml
new file mode 100644
index 0000000..b6c15b6
--- /dev/null
+++ b/res/layout/romlist.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" >
+    <ListView
+        android:id="@+id/romlist_view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+</LinearLayout>
diff --git a/res/layout/romlist_entry.xml b/res/layout/romlist_entry.xml
new file mode 100644
index 0000000..c6c0c81
--- /dev/null
+++ b/res/layout/romlist_entry.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical"
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content" >
+
+    <TextView android:id="@+id/name_entry"
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+</LinearLayout>
diff --git a/res/menu/romdetail_options_menu.xml b/res/menu/romdetail_options_menu.xml
new file mode 100644
index 0000000..512db77
--- /dev/null
+++ b/res/menu/romdetail_options_menu.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_fetch"
+          android:icon="@drawable/ic_menu_fetch"
+          android:alphabeticShortcut='f'
+          android:title="@string/menu_fetch" />
+    <item android:id="@+id/menu_install"
+          android:icon="@drawable/ic_menu_install"
+          android:alphabeticShortcut='i'
+          android:title="@string/menu_install" />
+</menu>
\ No newline at end of file
diff --git a/res/menu/romlist_options_menu.xml b/res/menu/romlist_options_menu.xml
new file mode 100644
index 0000000..a563acd
--- /dev/null
+++ b/res/menu/romlist_options_menu.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_refresh"
+          android:icon="@drawable/ic_menu_refresh"
+          android:alphabeticShortcut='r'
+          android:title="@string/menu_refresh" />
+    <item android:id="@+id/menu_settings"
+          android:icon="@drawable/ic_menu_settings"
+          android:alphabeticShortcut='s'
+          android:title="@string/menu_settings" />
+</menu>
diff --git a/res/values/arrays.xml b/res/values/arrays.xml
new file mode 100644
index 0000000..c560dda
--- /dev/null
+++ b/res/values/arrays.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<resources>
+    <string-array name="updateInterval">
+        <item name="hourly">Hourly</item>
+        <item name="daily">Daily</item>
+    </string-array>
+    <string-array name="updateIntervalValues">
+        <item name="hourly">3600</item>
+        <item name="daily">86400</item>
+    </string-array>
+</resources>
diff --git a/res/values/strings.xml b/res/values/strings.xml
new file mode 100644
index 0000000..00a9945
--- /dev/null
+++ b/res/values/strings.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">RomKeeper</string>
+
+    <string name="file_download_service_name">File Download Service</string>
+    <string name="manifest_checker_service_name">Manifest Checker Service</string>
+
+    <string name="menu_refresh">Refresh</string>
+    <string name="menu_settings">Settings</string>
+
+    <string name="menu_fetch">Fetch</string>
+    <string name="menu_install">Install</string>
+    <!-- <string name="menu_delete">Delete</string> -->
+
+    <string name="empty">Empty</string>
+
+    <string name="repeating_scheduled">Repeating Scheduled</string>
+    <string name="repeating_unscheduled">Repeating Unscheduled</string>
+
+    <string name="alarm_service_started">Alarm Service Started</string>
+    <string name="alarm_service_finished">Alarm Service Finished</string>
+    <string name="alarm_service_label">Alarm Service Label</string>
+</resources>
diff --git a/res/xml/preferences.xml b/res/xml/preferences.xml
new file mode 100644
index 0000000..117f5c2
--- /dev/null
+++ b/res/xml/preferences.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <PreferenceCategory
+        android:title="Updates"
+        android:key="updates">
+        <CheckBoxPreference
+            android:key="auto_updates"
+            android:summary="Control automatic updates"
+            android:title="Automatic updates"
+            android:defaultValue="false"
+        />
+    </PreferenceCategory>
+    <PreferenceCategory
+        android:title="Data Source"
+        android:key="data_source">
+        <EditTextPreference
+            android:key="manifest_url"
+            android:title="Manifest URL"
+            android:summary="Where to find the manifest"
+            android:dialogTitle="Manifest URL"
+            android:dialogMessage="Provide an URL"
+            android:defaultValue="http://vmroms.com/~vmstorage/romkeeper" />
+    </PreferenceCategory>
+</PreferenceScreen>
diff --git a/src/tdm/romkeeper/BrowserFileDownloader.java b/src/tdm/romkeeper/BrowserFileDownloader.java
new file mode 100644
index 0000000..243ee14
--- /dev/null
+++ b/src/tdm/romkeeper/BrowserFileDownloader.java
@@ -0,0 +1,93 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+import android.content.Intent;
+
+import android.net.Uri;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.Process;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.IOException;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+/* A base/helper class for implementing async HTTP file fetches. */
+class BrowserFileDownloader extends FileDownloader
+{
+    private Context             mContext;
+
+    BrowserFileDownloader(Context ctx, String url, String pathname, long size) {
+        super(url, pathname, size);
+        mContext = ctx;
+    }
+    BrowserFileDownloader(Context ctx, Handler handler, String url, String pathname, long size) {
+        super(handler, url, pathname, size);
+        mContext = ctx;
+    }
+
+    public void run() {
+        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+
+        onStart();
+
+        Log.i("BrowserFileDownloader", "downloading "+getUrl());
+
+        Intent i = new Intent(Intent.ACTION_VIEW);
+        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // XXX: is this what we want?
+        i.setData(Uri.parse(getUrl()));
+        mContext.startActivity(i);
+
+        String filename = getPathname();
+        int idx = filename.lastIndexOf('/');
+        if (idx > 0) {
+            filename = filename.substring(idx+1);
+        }
+        String dlpath = "/sdcard/download/" + filename;
+
+        long startTime = System.currentTimeMillis();
+        File f = new File(dlpath);
+        long lastTime = startTime;
+        long lastSize = 0;
+        while (lastSize < getSize()) {
+            try {
+                Thread.sleep(1000);
+            }
+            catch (InterruptedException e) {
+                // Ignore
+            }
+            long currentTime = System.currentTimeMillis();
+            long currentSize = 0;
+            if (f.exists()) {
+                currentSize = f.length();
+            }
+            if (currentSize > lastSize) {
+                updateBytesWritten((int)(currentSize - lastSize));
+            }
+            else {
+                if (currentTime - lastTime > 60*1000) {
+                    Log.e("FileDownloader", "Download failed or complete");
+                    onFinish(FAILURE);
+                    return;
+                }
+            }
+            lastTime = currentTime;
+            lastSize = currentSize;
+        }
+
+        File dest = new File("/sdcard/" + filename);
+        f.renameTo(dest);
+
+        Log.i("FileDownloader", "Download complete");
+        onFinish(SUCCESS);
+    }
+}
diff --git a/src/tdm/romkeeper/BrowserFilePatcher.java b/src/tdm/romkeeper/BrowserFilePatcher.java
new file mode 100644
index 0000000..d4a8a0f
--- /dev/null
+++ b/src/tdm/romkeeper/BrowserFilePatcher.java
@@ -0,0 +1,109 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+import android.content.Intent;
+
+import android.net.Uri;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.Process;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.IOException;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+class BrowserFilePatcher extends FileDownloader
+{
+    private Context             mContext;
+    private String              mDeltaPathname;
+    private long                mDeltaSize;
+    private String              mBasisPathname;
+
+    BrowserFilePatcher(Context ctx, Handler handler,
+            String deltaUrl, String deltaPathname, long deltaSize,
+            String outPathname, long outSize, String basisPathname) {
+        super(handler, deltaUrl, outPathname, outSize);
+        mContext = ctx;
+        mDeltaPathname = deltaPathname;
+        mDeltaSize = deltaSize;
+        mBasisPathname = basisPathname;
+    }
+
+    private String basename(String pathname) {
+        int idx = pathname.lastIndexOf('/');
+        if (idx > 0) {
+            return pathname.substring(idx+1);
+        }
+        return pathname;
+    }
+
+    public void run() {
+        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+
+        onStart();
+
+        Log.i("BrowserFilePatcher", "downloading "+getUrl());
+
+        Intent i = new Intent(Intent.ACTION_VIEW);
+        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // XXX: is this what we want?
+        i.setData(Uri.parse(getUrl()));
+        mContext.startActivity(i);
+
+        String dlpath = "/sdcard/download/" + basename(mDeltaPathname);
+
+        long lastTime = System.currentTimeMillis();
+        long lastSize = 0;
+        File f = new File(dlpath);
+        while (lastSize < mDeltaSize) {
+            long currentTime = System.currentTimeMillis();
+            long currentSize = 0;
+            if (f.exists()) {
+                currentSize = f.length();
+            }
+            if (currentSize <= lastSize) {
+                if (currentTime - lastTime > 60*1000) {
+                    Log.e("BrowserFilePatcher", "Download failed or stalled");
+                    onFinish(FAILURE);
+                    return;
+                }
+            }
+            lastTime = currentTime;
+            lastSize = currentSize;
+
+            // XXX: update progress...???
+
+            try {
+                Thread.sleep(1000);
+            }
+            catch (InterruptedException e) {
+                // Ignore
+            }
+        }
+
+        try {
+            InputStream is = new FileInputStream(f);
+            OutputStream os = new FileOutputStream(getPathname());
+            FilePatcher patcher = new FilePatcher(this, mBasisPathname, is, os);
+            patcher.patch();
+
+            f.delete();
+
+            Log.i("BrowserFilePatcher", "Download complete");
+            onFinish(SUCCESS);
+        }
+        catch (Exception e) {
+            Log.e("BrowserFilePatcher", "Download failed or incomplete");
+            onFinish(FAILURE);
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/DbAdapter.java b/src/tdm/romkeeper/DbAdapter.java
new file mode 100644
index 0000000..68ba271
--- /dev/null
+++ b/src/tdm/romkeeper/DbAdapter.java
@@ -0,0 +1,193 @@
+package tdm.romkeeper;
+
+import android.content.ContentValues;
+import android.content.Context;
+
+import android.database.Cursor;
+import android.database.SQLException;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteDatabase;
+
+import java.io.File;
+
+import java.util.ArrayList;
+
+interface DbObserver
+{
+    void onContentInsert(String name);
+    void onContentUpdate(String name);
+    void onContentDelete(String name);
+}
+
+class DbAdapter
+{
+    private static class DbHelper extends SQLiteOpenHelper
+    {
+        private static final String DB_NAME = "roms";
+        private static final int DB_VERSION = 1;
+
+        private static final String DB_CREATE =
+                "CREATE TABLE romlist (" +
+                    "_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                    "name VARCHAR(64) NOT NULL UNIQUE, " +
+                    "url VARCHAR(256) NOT NULL UNIQUE, " +
+                    "filename VARCHAR(64) NOT NULL UNIQUE, " +
+                    "size INTEGER, " +
+                    "digest CHAR(32), " +
+                    "basis VARCHAR(64), " +
+                    "deltaurl VARCHAR(256), " +
+                    "deltafilename VARCHAR(64), " +
+                    "deltasize INTEGER, " +
+                    "mtime INTEGER, " +
+                    "verified INTEGER" +
+                    ")";
+
+        DbHelper(Context ctx) {
+            super(ctx, DB_NAME, null, DB_VERSION);
+        }
+
+        @Override
+        public void onCreate(SQLiteDatabase db) {
+            db.execSQL(DB_CREATE);
+        }
+
+        @Override
+        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+            db.execSQL("DROP TABLE IF EXISTS romlist");
+            onCreate(db);
+        }
+    }
+
+    private final Context       mCtx;
+    private DbHelper            mHelper;
+    private SQLiteDatabase      mDb;
+
+    ArrayList<DbObserver>       mObservers;
+
+    void registerObserver(DbObserver o) {
+        mObservers.add(o);
+    }
+    void removeObserver(DbObserver o) {
+        mObservers.remove(o);
+    }
+
+    private static DbAdapter sInstance;
+    static DbAdapter getInstance(Context ctx) {
+        if (sInstance == null) {
+            sInstance = new DbAdapter(ctx);
+        }
+        return sInstance;
+    }
+
+    private DbAdapter(Context ctx) {
+        mCtx = ctx;
+        mHelper = new DbHelper(ctx);
+        mDb = mHelper.getWritableDatabase();
+        mObservers = new ArrayList<DbObserver>();
+    }
+
+    Cursor getRomCursor() {
+        Cursor c = mDb.query("romlist",
+                new String[] { "_id", "name" },
+                null, null, null, null, null);
+        return c;
+    }
+
+    void insert(Rom r) {
+        ContentValues values = new ContentValues();
+        values.put("name", r.getName());
+        values.put("url", r.getUrl());
+        values.put("filename", r.getFilename());
+        values.put("size", r.getSize());
+        values.put("digest", r.getDigest());
+        values.put("basis", r.getBasis());
+        values.put("deltaurl", r.getDeltaUrl());
+        values.put("deltafilename", r.getDeltaFilename());
+        values.put("deltasize", r.getDeltaSize());
+        values.put("mtime", r.getModTime());
+        values.put("verified", (r.getVerified() ? 1 : 0));
+        mDb.insert("romlist", null, values);
+
+        for (DbObserver o : mObservers) {
+            o.onContentInsert(r.getName());
+        }
+    }
+
+    void update(Rom r) {
+        ContentValues values = new ContentValues();
+        values.put("url", r.getUrl());
+        values.put("filename", r.getFilename());
+        values.put("size", r.getSize());
+        values.put("digest", r.getDigest());
+        values.put("basis", r.getBasis());
+        values.put("deltaurl", r.getDeltaUrl());
+        values.put("deltafilename", r.getDeltaFilename());
+        values.put("deltasize", r.getDeltaSize());
+
+        mDb.update("romlist",
+                values,
+                "name=?",
+                new String[] { r.getName() });
+
+        for (DbObserver o : mObservers) {
+            o.onContentUpdate(r.getName());
+        }
+    }
+
+    void delete(Rom r) {
+        mDb.delete("romlist",
+                "name=?",
+                new String[] { r.getName() });
+
+        for (DbObserver o : mObservers) {
+            o.onContentDelete(r.getName());
+        }
+    }
+
+    void deleteAll() {
+        mDb.delete("romlist", null, null);
+        //XXX: no observer callback...?
+    }
+
+    Rom get(String name) {
+        Rom r = null;
+        Cursor c = mDb.query("romlist",
+                new String[] { "url", "filename", "size", "digest", "basis",
+                               "deltaurl", "deltafilename", "deltasize",
+                               "mtime", "verified" },
+                "name=?",
+                new String[] { name },
+                null, null, null);
+        if (c != null) {
+            c.moveToFirst();
+            int idx = 0;
+            r = new Rom(name);
+            r.setUrl(c.getString(idx++));
+            r.setFilename(c.getString(idx++));
+            r.setSize(c.getInt(idx++));
+            r.setDigest(c.getString(idx++));
+            r.setBasis(c.getString(idx++));
+            r.setDeltaUrl(c.getString(idx++));
+            r.setDeltaFilename(c.getString(idx++));
+            r.setDeltaSize(c.getInt(idx++));
+            long mtime = c.getLong(idx++);
+            boolean verified = (c.getInt(idx++) != 0);
+            r.setVerified(verified, mtime);
+        }
+        return r;
+    }
+
+    void setVerified(String name, boolean val, long mtime) {
+        ContentValues values = new ContentValues();
+        values.put("mtime", mtime);
+        values.put("verified", (val ? 1 : 0));
+        mDb.update("romlist",
+                values,
+                "name=?",
+                new String[] { name });
+
+        for (DbObserver o : mObservers) {
+            o.onContentUpdate(name);
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/FileDownloadProgressUpdater.java b/src/tdm/romkeeper/FileDownloadProgressUpdater.java
new file mode 100644
index 0000000..148c743
--- /dev/null
+++ b/src/tdm/romkeeper/FileDownloadProgressUpdater.java
@@ -0,0 +1,72 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.Process;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.IOException;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+class FileDownloadProgressUpdater implements StreamListener
+{
+    static final int MSG_START          = 100;
+    static final int MSG_PROGRESS       = 101;
+    static final int MSG_FINISH         = 102;
+
+    static final int SUCCESS            = 0;
+    static final int FAILURE            = 1;
+
+    private Handler             mHandler;
+    private long                mSize;
+    private long                mTotalWritten;
+
+    FileDownloadProgressUpdater(Handler handler, long size) {
+        mHandler = handler;
+        mSize = size;
+    }
+
+    private void sendStatus(int what, int arg1, int arg2) {
+        mHandler.sendMessage(Message.obtain(mHandler, what, arg1, arg2));
+    }
+    private void sendStatus(int what, int arg1) { sendStatus(what, arg1, 0); }
+    private void sendStatus(int what) { sendStatus(what, 0, 0); }
+
+    private int calcPercent(long n, long d) {
+        int pct = (100*((int)(n>>8)))/((int)(d>>8));
+        return pct;
+    }
+
+    long getSize() { return mSize; }
+
+    public void updateBytesRead(int len) {}
+
+    public void updateBytesWritten(int len) {
+        if (mSize > 0) {
+            int oldPct = calcPercent(mTotalWritten, mSize);
+            int newPct = calcPercent(mTotalWritten+len, mSize);
+            if (newPct > oldPct) {
+                sendStatus(MSG_PROGRESS, newPct);
+            }
+        }
+        mTotalWritten += len;
+    }
+
+    void onStart() {
+        sendStatus(MSG_START);
+    }
+
+    void onFinish(int status) {
+        sendStatus(MSG_FINISH, status);
+    }
+}
diff --git a/src/tdm/romkeeper/FileDownloadService.java b/src/tdm/romkeeper/FileDownloadService.java
new file mode 100644
index 0000000..acf11ce
--- /dev/null
+++ b/src/tdm/romkeeper/FileDownloadService.java
@@ -0,0 +1,348 @@
+package tdm.romkeeper;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+
+import android.content.Context;
+import android.content.Intent;
+
+import android.database.sqlite.SQLiteDatabase;
+
+import android.util.Log;
+
+import android.os.Binder;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+import android.os.RemoteException;
+
+import android.widget.Toast;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/*
+ * XXX:
+ * Currently we update the database directly with the download/verify
+ * status.  This is not really good practice, and it is probably the
+ * only thing preventing this from being a general purpose class.
+ */
+
+public class FileDownloadService extends Service
+{
+    private static final int DS_NONE = 0;
+    private static final int DS_VERIFY_EXISTING = 1;
+    private static final int DS_DOWNLOAD = 2;
+    private static final int DS_VERIFY_DOWNLOAD = 3;
+    private static final int DS_COMPLETE = 4;
+
+    static final String EXTRA_NAME          = "EXTRA_NAME";
+    static final String EXTRA_FILENAME      = "EXTRA_FILENAME";
+    static final String EXTRA_SIZE          = "EXTRA_SIZE";
+    static final String EXTRA_DIGEST        = "EXTRA_DIGEST";
+    static final String EXTRA_BASIS         = "EXTRA_BASIS";
+    static final String EXTRA_DELTAURL      = "EXTRA_DELTAURL";
+    static final String EXTRA_DELTAFILENAME = "EXTRA_DELTAFILENAME";
+    static final String EXTRA_DELTASIZE     = "EXTRA_DELTASIZE";
+
+    static final int NOTIFICATION_ID    = 1; /* XXX: need one id per file download */
+
+    class DownloadEntry
+    {
+        int                     mState;
+        int                     mProgress; /* Download: 0..79, Verify: 80..99 */
+        String                  mUrl;
+        String                  mName;
+        String                  mPathname;
+        long                    mSize;
+        String                  mDigest;
+        String                  mBasis;
+        String                  mDeltaUrl;
+        String                  mDeltaPathname;
+        long                    mDeltaSize;
+    }
+
+    class DownloadStatusHandler extends Handler
+    {
+        private FileDownloadService     mOwner;
+        private DownloadEntry           mEntry;
+
+        DownloadStatusHandler(FileDownloadService owner, DownloadEntry e) {
+            mOwner = owner;
+            mEntry = e;
+        }
+
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+            case FileDownloader.MSG_START:
+                break;
+            case FileDownloader.MSG_PROGRESS:
+                mOwner.onDownloadProgress(mEntry, msg.arg1);
+                break;
+            case FileDownloader.MSG_FINISH:
+                mOwner.onDownloadFinish(mEntry, msg.arg1);
+                break;
+            default:
+                Log.e("FileDownloadService", "Unknown msg.what=" + msg.what);
+            }
+        }
+    }
+    class VerifyStatusHandler extends Handler
+    {
+        private FileDownloadService     mOwner;
+        private DownloadEntry           mEntry;
+
+        VerifyStatusHandler(FileDownloadService owner, DownloadEntry e) {
+            mOwner = owner;
+            mEntry = e;
+        }
+
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+            case FileVerifier.MSG_START:
+                break;
+            case FileVerifier.MSG_PROGRESS:
+                mOwner.onVerifyProgress(mEntry, msg.arg1);
+                break;
+            case FileVerifier.MSG_FINISH:
+                mOwner.onVerifyFinish(mEntry, msg.arg1);
+                break;
+            default:
+                Log.e("FileDownloadService", "Unknown msg.what=" + msg.what);
+            }
+        }
+    }
+
+    private DbAdapter                   mDbAdapter;
+    private NotificationManager         mNM;
+    private Notification                mNotification;
+    private PendingIntent               mPendingIntent;
+    private List<DownloadEntry>         mDownloads;
+
+    private void updateProgress() {
+        String status;
+        int count = mDownloads.size();
+        if (count == 0) {
+            status = "Complete";
+        }
+        else if (count == 1) {
+            DownloadEntry entry = mDownloads.get(0);
+            if (entry.mState == DS_VERIFY_EXISTING || entry.mState == DS_VERIFY_DOWNLOAD) {
+                status = "Verifying: " + entry.mProgress + "% complete";
+            }
+            else {
+                status = "Downloading: " + entry.mProgress + "% complete";
+            }
+        }
+        else {
+            int total = 0;
+            for (DownloadEntry entry : mDownloads) {
+                total += entry.mProgress;
+            }
+            int pct = total/count;
+            status = "Downloading " + count + " files: " + pct + "% complete";
+        }
+        mNotification.setLatestEventInfo(this, "Download", status, mPendingIntent);
+        mNM.notify(NOTIFICATION_ID, mNotification);
+    }
+
+    private boolean browserDownloadRequired(String location) {
+        try {
+            URL url = new URL(location);
+            String host = url.getHost().toLowerCase();
+            if (host.indexOf("mediafire.com") != -1) {
+                return true;
+            }
+        }
+        catch (Exception e) {
+            // Ignore
+        }
+        return false;
+    }
+
+    private void startFetch(DownloadEntry e) {
+        File f = new File(e.mPathname);
+        e.mState = DS_NONE;
+        e.mProgress = 0;
+        updateProgress();
+        if (f.exists()) {
+            Log.i("FileDownloadService", "verify existing");
+            e.mState = DS_VERIFY_EXISTING;
+            VerifyStatusHandler h = new VerifyStatusHandler(this, e);
+            FileVerifier fv = new FileVerifier(h, e.mPathname, e.mSize, e.mDigest);
+            fv.start();
+        }
+        else {
+            e.mState = DS_DOWNLOAD;
+            DownloadStatusHandler h = new DownloadStatusHandler(this, e);
+
+            /*
+             * TODO: figure out if mediafire is in the url.
+             *   If so, launch a BrowserDownloader or BrowserPatcher.
+             *   If not, launch a FileFetcher or FilePatcher.
+             *
+             * This should all be hidden behind the scenes, especially the
+             * patching.  Or at least the FilePatcher could extend a new
+             * class StreamPatcher, or something.
+             */
+            FileDownloader downloader;
+            if (e.mBasis != null && e.mDeltaUrl != null) {
+                Log.i("FileDownloadService", "patch");
+                if (browserDownloadRequired(e.mDeltaUrl)) {
+                    downloader = new BrowserFilePatcher(this, h,
+                            e.mDeltaUrl, e.mDeltaPathname, e.mDeltaSize,
+                            e.mPathname, e.mSize, e.mBasis);
+                }
+                else {
+                    downloader = new HttpFilePatcher(h,
+                            e.mDeltaUrl, e.mDeltaPathname, e.mDeltaSize,
+                            e.mPathname, e.mSize, e.mBasis);
+                }
+            }
+            else {
+                Log.i("FileDownloadService", "download");
+                if (browserDownloadRequired(e.mUrl)) {
+                    downloader = new BrowserFileDownloader(this, h,
+                            e.mUrl, e.mPathname, e.mSize);
+                }
+                else {
+                    downloader = new HttpFileDownloader(h,
+                            e.mUrl, e.mPathname, e.mSize);
+                }
+            }
+            downloader.start();
+        }
+    }
+
+    private void onDownloadProgress(DownloadEntry e, int pct) {
+        e.mProgress = (pct*80)/100;
+        updateProgress();
+    }
+
+    private void onDownloadFinish(DownloadEntry e, int status) {
+        Log.i("FileDownloadService", "onDownloadFinish: status="+status);
+        if (status == FileDownloader.SUCCESS) {
+            e.mState = DS_VERIFY_DOWNLOAD;
+            e.mProgress = 80;
+            updateProgress();
+            VerifyStatusHandler h = new VerifyStatusHandler(this, e);
+            FileVerifier fv = new FileVerifier(h, e.mPathname, e.mSize, e.mDigest);
+            fv.start();
+            return;
+        }
+        mDownloads.remove(e);
+        updateProgress();
+
+        mDbAdapter.setVerified(e.mName, false, 0);
+
+        if (mDownloads.isEmpty()) {
+            stopSelf();
+        }
+    }
+
+    private void onVerifyProgress(DownloadEntry e, int pct) {
+        e.mProgress = 80 + (pct*20)/100;
+        updateProgress();
+    }
+
+    private void onVerifyFinish(DownloadEntry e, int status) {
+        Log.i("FileDownloadService", "onVerifyFinish: status="+status);
+        if (e.mState == DS_VERIFY_EXISTING && status != FileVerifier.SUCCESS) {
+            Log.i("FileDownloadService", "Verify failed, downloading...");
+            File f = new File(e.mPathname);
+            f.delete();
+            startFetch(e);
+            return;
+        }
+
+        mDownloads.remove(e);
+
+        long mtime = 0;
+        File f = new File(e.mPathname);
+        if (f.exists()) {
+            mtime = f.lastModified();
+        }
+
+        mDbAdapter.setVerified(e.mName, (status == 0), mtime);
+
+        if (mDownloads.isEmpty()) {
+            stopSelf();
+        }
+    }
+
+    @Override
+    public void onCreate() {
+        Log.i("FileDownloadService", "onCreate");
+        mDbAdapter = DbAdapter.getInstance(this);
+        mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+        mNotification = new Notification(R.drawable.icon, "Download", System.currentTimeMillis());
+        mNotification.flags |= Notification.FLAG_AUTO_CANCEL;
+        mPendingIntent = PendingIntent.getActivity(this, 0,
+                        new Intent(this, RomKeeperActivity.class), 0);
+        mDownloads = new ArrayList<DownloadEntry>();
+        super.onCreate();
+    }
+
+    @Override
+    public void onDestroy() {
+        Log.i("FileDownloadService", "onDestroy");
+    }
+
+    @Override
+    public IBinder onBind(Intent i) {
+        return null;
+    }
+
+    @Override
+    public int onStartCommand(Intent i, int flags, int startId) {
+        Bundle extras = i.getExtras();
+        if (extras == null) {
+            Log.e("FileDownloadService", "no extras in intent");
+            return START_NOT_STICKY;
+        }
+
+        DownloadEntry e = new DownloadEntry();
+        e.mState = DS_NONE;
+        e.mProgress = 0;
+        e.mUrl = i.getData().toString();
+        e.mName = extras.getString("EXTRA_NAME");
+        e.mPathname = "/sdcard/" + extras.getString(EXTRA_FILENAME);
+        e.mSize = extras.getLong(EXTRA_SIZE);
+        e.mDigest = extras.getString(EXTRA_DIGEST);
+
+        Log.i("FileDownloadService", "onStartCommand: url="+e.mUrl+", pathname="+e.mPathname);
+
+        String val;
+        val = extras.getString(EXTRA_BASIS);
+        if (val != null && val.length() > 0) {
+            e.mBasis = "/sdcard/" + val;
+            Log.i("FileDownloadService", "onStartCommand: basis=" + e.mBasis);
+        }
+        val = extras.getString(EXTRA_DELTAURL);
+        if (val != null && val.length() > 0) {
+            e.mDeltaUrl = val;
+            Log.i("FileDownloadService", "onStartCommand: deltaurl=" + e.mDeltaUrl);
+            e.mDeltaPathname = "/sdcard/" + extras.getString(EXTRA_DELTAFILENAME);
+            e.mDeltaSize = extras.getLong(EXTRA_DELTASIZE);
+        }
+
+        mDownloads.add(e);
+
+        startFetch(e);
+
+        return START_STICKY;
+    }
+}
diff --git a/src/tdm/romkeeper/FileDownloader.java b/src/tdm/romkeeper/FileDownloader.java
new file mode 100644
index 0000000..37fd7b8
--- /dev/null
+++ b/src/tdm/romkeeper/FileDownloader.java
@@ -0,0 +1,92 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.Process;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.IOException;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+/*
+ * Base class for all file download operations.  File downloads may be
+ * initiated in a variety of ways: directly (eg. by URLConnection),
+ * indirectly (eg. by opening a browser), or whatever.
+ */
+abstract class FileDownloader extends Thread
+                              implements StreamListener
+{
+    static final int MSG_START          = 100;
+    static final int MSG_PROGRESS       = 101;
+    static final int MSG_FINISH         = 102;
+
+    static final int SUCCESS            = 0;
+    static final int FAILURE            = 1;
+
+    private Handler             mHandler;
+    private String              mUrl;
+    private String              mPathname;
+    private long                mSize;
+    private long                mTotalWritten;
+
+    FileDownloader(String url, String pathname, long size) {
+        mHandler = null;
+        mUrl = url;
+        mPathname = pathname;
+        mSize = size;
+    }
+    FileDownloader(Handler handler, String url, String pathname, long size) {
+        mHandler = handler;
+        mUrl = url;
+        mPathname = pathname;
+        mSize = size;
+    }
+
+    private void sendStatus(int what, int arg1, int arg2) {
+        if (mHandler != null) {
+            mHandler.sendMessage(Message.obtain(mHandler, what, arg1, arg2));
+        }
+    }
+    private void sendStatus(int what, int arg1) { sendStatus(what, arg1, 0); }
+    private void sendStatus(int what) { sendStatus(what, 0, 0); }
+
+    private int calcPercent(long n, long d) {
+        int pct = (100*((int)(n>>8)))/((int)(d>>8));
+        return pct;
+    }
+
+    String getUrl() { return mUrl; }
+    String getPathname() { return mPathname; }
+    long getSize() { return mSize; }
+
+    public void updateBytesRead(int len) {}
+
+    public void updateBytesWritten(int len) {
+        if (mSize > 0) {
+            int oldPct = calcPercent(mTotalWritten, mSize);
+            int newPct = calcPercent(mTotalWritten+len, mSize);
+            if (newPct > oldPct) {
+                sendStatus(MSG_PROGRESS, newPct);
+            }
+        }
+        mTotalWritten += len;
+    }
+
+    void onStart() {
+        sendStatus(MSG_START);
+    }
+
+    void onFinish(int status) {
+        sendStatus(MSG_FINISH, status);
+    }
+}
diff --git a/src/tdm/romkeeper/FilePatcher.java b/src/tdm/romkeeper/FilePatcher.java
new file mode 100644
index 0000000..7627a5f
--- /dev/null
+++ b/src/tdm/romkeeper/FilePatcher.java
@@ -0,0 +1,122 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.io.EOFException;
+import java.io.IOException;
+
+class FilePatcher
+{
+    private static final int MAX_BUFLEN = 64*1024;
+
+    private static final int  DELTA_MAGIC   = 0x72730236;
+
+    private static final byte OP_END        = 0x00;
+
+    private static final byte OP_LITERAL_N1 = 0x41;
+    private static final byte OP_LITERAL_N2 = 0x42;
+    private static final byte OP_LITERAL_N4 = 0x43;
+
+    private static final byte OP_COPY_N2_N4 = 0x4b;
+    private static final byte OP_COPY_N4_N2 = 0x4e;
+    private static final byte OP_COPY_N4_N4 = 0x4f;
+
+    private StreamListener      mListener;
+    private String              mBasisPathname;
+    private InputStream         mDeltaStream;
+    private OutputStream        mOutputStream;
+    private RandomAccessFile    mBasis;
+
+    FilePatcher(StreamListener listener, String basisPathname, InputStream deltas, OutputStream out) {
+        mListener = listener;
+        mBasisPathname = basisPathname;
+        mDeltaStream = deltas;
+        mOutputStream = out;
+    }
+
+    private int readInt(int len) throws IOException {
+        int val = 0;
+        int b;
+        while (len-- != 0) {
+            b = mDeltaStream.read();
+            if (b == -1) {
+                throw new EOFException();
+            }
+            val = (val << 8) | b;
+        }
+        return val;
+    }
+
+    private void readHeader() throws Exception {
+        if (readInt(4) != DELTA_MAGIC) {
+            throw new IOException("Bad delta header");
+        }
+    }
+
+    private void applyLiteral(int n) throws Exception {
+        byte[] buf = new byte[MAX_BUFLEN];
+        int bufsz;
+        int total = readInt(n);
+        int len;
+        while (total > 0) {
+            len = mDeltaStream.read(buf, 0, Math.min(MAX_BUFLEN, total));
+            if (len == -1) {
+                throw new IOException("Failed to read from deltas");
+            }
+            mOutputStream.write(buf, 0, len);
+            mListener.updateBytesWritten(len);
+            total -= len;
+        }
+    }
+    private void applyCopy(int n1, int n2) throws Exception {
+        byte[] buf = new byte[MAX_BUFLEN];
+        int bufsz;
+        int oldoff = readInt(n1);
+        int total = readInt(n2);
+        int len;
+        mBasis.seek(oldoff);
+        while (total > 0) {
+            len = mBasis.read(buf, 0, Math.min(MAX_BUFLEN, total));
+            if (len == -1) {
+                throw new IOException("Failed to read from basis");
+            }
+            mOutputStream.write(buf, 0, len);
+            mListener.updateBytesWritten(len);
+            total -= len;
+        }
+    }
+
+    void patch() throws Exception {
+        mBasis = new RandomAccessFile(mBasisPathname, "rw");
+        readHeader();
+        boolean end = false;
+        while (!end) {
+            int cmd = mDeltaStream.read();
+            switch (cmd) {
+            case OP_END:        end = true;      break;
+            case OP_LITERAL_N1: applyLiteral(1); break;
+            case OP_LITERAL_N2: applyLiteral(2); break;
+            case OP_LITERAL_N4: applyLiteral(4); break;
+            case OP_COPY_N2_N4: applyCopy(2, 4); break;
+            case OP_COPY_N4_N2: applyCopy(4, 2); break;
+            case OP_COPY_N4_N4: applyCopy(4, 4); break;
+            default:
+                throw new IOException("Bad delta command");
+            }
+        }
+        mBasis.close();
+    }
+}
diff --git a/src/tdm/romkeeper/FileVerifier.java b/src/tdm/romkeeper/FileVerifier.java
new file mode 100644
index 0000000..215f022
--- /dev/null
+++ b/src/tdm/romkeeper/FileVerifier.java
@@ -0,0 +1,93 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.Process;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+
+import java.security.MessageDigest;
+
+class FileVerifier extends Thread
+{
+    static final int MSG_START          = 100;
+    static final int MSG_PROGRESS       = 101;
+    static final int MSG_FINISH         = 102;
+
+    static final int SUCCESS            = 0;
+    static final int FAILURE            = 1;
+
+    private Handler             mHandler;
+    private String              mPathname;
+    private long                mSize;
+    private String              mDigest;
+
+    private void sendStatus(int what, int arg1, int arg2) {
+            mHandler.sendMessage(Message.obtain(mHandler, what, arg1, arg2));
+    }
+    private void sendStatus(int what, int arg1) { sendStatus(what, arg1, 0); }
+    private void sendStatus(int what) { sendStatus(what, 0, 0); }
+
+    FileVerifier(Handler handler, String pathname, long size, String digest) {
+        mHandler = handler;
+        mPathname = pathname;
+        mSize = size;
+        mDigest = digest;
+    }
+
+    public void run() {
+        try {
+            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+
+            sendStatus(MSG_START);
+            File f = new File(mPathname);
+            if (f.length() != mSize) {
+                throw new Exception("Incorrect length");
+            }
+
+            Log.i("FileVerifier", "verify " + mPathname);
+            FileInputStream is = new FileInputStream(f);
+            MessageDigest digester = MessageDigest.getInstance("MD5");
+            byte[] buf = new byte[4096];
+            int progress = 0;
+            long total = 0;
+            int len;
+            while ((len = is.read(buf)) > 0) {
+                digester.update(buf, 0, len);
+                total += len;
+                int p = (100*((int)(total>>8)))/((int)(mSize>>8));
+                if (p > progress) {
+                    progress = p;
+                    sendStatus(MSG_PROGRESS, progress);
+                }
+            }
+            is.close();
+
+            byte[] calculatedDigest = digester.digest();
+            StringBuffer sb = new StringBuffer();
+            for (int i = 0; i < calculatedDigest.length; ++i) {
+                sb.append(String.format("%02x", calculatedDigest[i]));
+            }
+            Log.i("FileVerifier", "Expected digest=" + mDigest);
+            Log.i("FileVerifier", "Calculated digest=" + sb.toString());
+            if (!sb.toString().equalsIgnoreCase(mDigest)) {
+                throw new Exception("Incorrect digest");
+            }
+            sendStatus(MSG_FINISH, SUCCESS);
+        }
+        catch (Exception e) {
+            Log.e("FileVerifier", "exception: " + e.getMessage());
+            e.printStackTrace();
+            sendStatus(MSG_FINISH, FAILURE);
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/HttpFileDownloader.java b/src/tdm/romkeeper/HttpFileDownloader.java
new file mode 100644
index 0000000..507145a
--- /dev/null
+++ b/src/tdm/romkeeper/HttpFileDownloader.java
@@ -0,0 +1,57 @@
+package tdm.romkeeper;
+
+import android.os.Handler;
+import android.os.Process;
+
+import android.util.Log;
+
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+class HttpFileDownloader extends FileDownloader
+{
+    private static final int MAX_BUFLEN = 64*1024;
+
+    HttpFileDownloader(Handler handler, String url, String pathname, long size) {
+        super(handler, url, pathname, size);
+    }
+
+    public void run() {
+        Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+        try {
+            onStart();
+
+            URL url = new URL(getUrl());
+            URLConnection conn = url.openConnection();
+            InputStream is = conn.getInputStream();
+            int len;
+            len = conn.getContentLength();
+            if (len > 0 && len != getSize()) {
+                throw new Exception("Bad content length");
+            }
+            Log.i("FileDownloader", "length "+len+" bytes");
+            OutputStream os = new FileOutputStream(getPathname());
+
+            byte[] buf = new byte[MAX_BUFLEN];
+            while ((len = is.read(buf)) > 0) {
+                os.write(buf, 0, len);
+                updateBytesWritten(len);
+            }
+
+            os.close();
+            is.close();
+
+            onFinish(SUCCESS);
+        }
+        catch (Exception e) {
+            Log.e("FileDownloader", "exception: " + e.getMessage());
+            e.printStackTrace();
+            onFinish(FAILURE);
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/HttpFilePatcher.java b/src/tdm/romkeeper/HttpFilePatcher.java
new file mode 100644
index 0000000..9e09735
--- /dev/null
+++ b/src/tdm/romkeeper/HttpFilePatcher.java
@@ -0,0 +1,68 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+
+import android.util.Log;
+
+import android.os.Handler;
+import android.os.Message;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.RandomAccessFile;
+import java.io.EOFException;
+import java.io.IOException;
+
+import java.net.URL;
+import java.net.URLConnection;
+
+class HttpFilePatcher extends FileDownloader
+{
+    private String              mDeltaPathname;
+    private long                mDeltaSize;
+    private String              mBasisPathname;
+    private RandomAccessFile    mBasis;
+
+    HttpFilePatcher(Handler handler,
+            String deltaUrl, String deltaPathname, long deltaSize,
+            String outPathname, long outSize, String basisPathname) {
+        super(handler, deltaUrl, outPathname, outSize);
+        mDeltaPathname = deltaPathname;
+        mDeltaSize = deltaSize;
+        mBasisPathname = basisPathname;
+    }
+
+    public void run() {
+        try {
+            onStart();
+
+            URL url = new URL(getUrl());
+            URLConnection conn = url.openConnection();
+            InputStream is = conn.getInputStream();
+            int len = conn.getContentLength();
+            if (len > 0 && len != mDeltaSize) {
+                throw new Exception("Bad content length");
+            }
+            Log.i("FileDownloader", "length "+len+" bytes");
+            OutputStream os = new FileOutputStream(getPathname());
+
+            FilePatcher patcher = new FilePatcher(this, mBasisPathname, is, os);
+            patcher.patch();
+
+            os.close();
+            os.close();
+
+            onFinish(SUCCESS);
+        }
+        catch (Exception e) {
+            Log.e("FileDownloader", "exception: " + e.getMessage());
+            e.printStackTrace();
+            onFinish(FAILURE);
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/ManifestCheckerService.java b/src/tdm/romkeeper/ManifestCheckerService.java
new file mode 100644
index 0000000..c84ba24
--- /dev/null
+++ b/src/tdm/romkeeper/ManifestCheckerService.java
@@ -0,0 +1,190 @@
+package tdm.romkeeper;
+
+import android.app.AlarmManager;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+
+import android.content.Context;
+import android.content.Intent;
+
+import android.os.Binder;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+
+import android.util.Log;
+
+import android.widget.Toast;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+
+import java.security.MessageDigest;
+
+import java.util.Arrays;
+
+interface ManifestCheckerCallback
+{
+    void onManifestCheckComplete(boolean isUpdated);
+}
+
+interface IManifestChecker
+{
+    void doCheck(ManifestCheckerCallback cb);
+}
+
+public class ManifestCheckerService extends Service
+{
+    private File                        mCacheFile;
+    private ManifestCheckerCallback     mCallback;
+    private ManifestFetcher             mFetcher;
+
+    public class ManifestCheckerBinder extends Binder
+                                       implements IManifestChecker
+    {
+        private ManifestCheckerService  mService;
+
+        ManifestCheckerBinder(ManifestCheckerService svc) {
+            mService = svc;
+        }
+        ManifestCheckerService getService() {
+            return ManifestCheckerService.this;
+        }
+        public void doCheck(ManifestCheckerCallback cb) {
+            mService.doCheck(cb);
+        }
+    }
+    private final ManifestCheckerBinder mBinder = new ManifestCheckerBinder(this);
+
+    class ManifestFetcherHandler extends Handler
+    {
+        private ManifestCheckerService mService;
+
+        ManifestFetcherHandler(ManifestCheckerService service) {
+            mService = service;
+        }
+
+        public void handleMessage(Message msg) {
+            mService.onManifestCheckDone();
+        }
+    }
+
+
+    @Override
+    public void onCreate() {
+        Log.i("ManifestCheckerService", "onCreate");
+        String pathname = getCacheDir() + "/manifest.xml";
+        mCacheFile = new File(pathname);
+
+        Intent alarmIntent = new Intent(this, ManifestCheckerService.class);
+        PendingIntent alarmPending = PendingIntent.getService(this, 0, alarmIntent, 0);
+
+        AlarmManager am = (AlarmManager)getSystemService(ALARM_SERVICE);
+        am.setInexactRepeating(AlarmManager.RTC,
+                        System.currentTimeMillis(),
+                        AlarmManager.INTERVAL_HOUR,
+                        alarmPending);
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Log.i("ManifestCheckerService", "onStartCommand");
+
+        startCheck();
+
+        // If we get killed, after returning from here, restart
+        return START_STICKY;
+    }
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return mBinder;
+    }
+
+    @Override
+    public void onDestroy() {
+        Log.i("ManifestCheckerService", "onDestroy");
+    }
+
+    private void startCheck() {
+        if (mFetcher == null) {
+            Handler handler = new ManifestFetcherHandler(this);
+            mFetcher = new ManifestFetcher(this, handler);
+            mFetcher.start();
+        }
+    }
+
+    void doCheck(ManifestCheckerCallback cb) {
+        mCallback = cb;
+        startCheck();
+    }
+
+    boolean isManifestUpdated() {
+        if (!mCacheFile.exists()) {
+            Log.i("ManifestCheckerService", "updated: cache file does not exist");
+            return true;
+        }
+
+        try {
+            MessageDigest dataDigester = MessageDigest.getInstance("MD5");
+            dataDigester.update(mFetcher.getData(), 0, mFetcher.getDataLen());
+            byte[] dataDigest = dataDigester.digest();
+
+            MessageDigest fileDigester = MessageDigest.getInstance("MD5");
+            FileInputStream is = new FileInputStream(mCacheFile);
+            byte[] buf = new byte[4096];
+            int len;
+            while ((len = is.read(buf)) > 0) {
+                fileDigester.update(buf, 0, len);
+            }
+            is.close();
+            byte[] fileDigest = fileDigester.digest();
+
+            if (Arrays.equals(dataDigest, fileDigest)) {
+                return false;
+            }
+            Log.i("ManifestCheckerService", "updated: digests differ");
+        }
+        catch (Exception e) {
+            Log.e("ManifestFetcher", "caught exception: " + e.getMessage());
+            e.printStackTrace();
+        }
+
+        return true;
+    }
+
+    void writeManifest() {
+        try {
+            FileOutputStream os = new FileOutputStream(mCacheFile);
+            os.write(mFetcher.getData(), 0, mFetcher.getDataLen());
+            os.close();
+        }
+        catch (Exception e) {
+            Log.e("ManifestFetcher", "caught exception: " + e.getMessage());
+            e.printStackTrace();
+        }
+    }
+
+    void onManifestCheckDone() {
+        boolean isUpdated = isManifestUpdated();
+        if (isUpdated) {
+            writeManifest();
+
+            NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+            Notification n = new Notification(R.drawable.icon, "Rom List Updated", System.currentTimeMillis());
+            n.flags |= Notification.FLAG_AUTO_CANCEL;
+            PendingIntent i = PendingIntent.getActivity(this, 0,
+                    new Intent(this, RomKeeperActivity.class), 0);
+            n.setLatestEventInfo(this, "RomKeeper", "Rom List Updated", i);
+            nm.notify(1, n);
+        }
+        if (mCallback != null) {
+            mCallback.onManifestCheckComplete(isUpdated);
+            mCallback = null;
+        }
+        mFetcher = null;
+    }
+}
diff --git a/src/tdm/romkeeper/ManifestFetcher.java b/src/tdm/romkeeper/ManifestFetcher.java
new file mode 100644
index 0000000..fb1c6a2
--- /dev/null
+++ b/src/tdm/romkeeper/ManifestFetcher.java
@@ -0,0 +1,79 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+import android.os.Handler;
+import android.os.Message;
+import android.os.Process;
+
+import android.util.Log;
+
+import java.io.File;
+import java.io.InputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import org.apache.http.HttpResponse;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.impl.client.DefaultHttpClient;
+
+class ManifestFetcher extends Thread
+{
+    static final String mDefaultManifestBaseUrl = "http://vmroms.com/~vmstorage/romkeeper";
+
+    String              mManifestBaseUrl;
+
+    Context             mContext;
+    Handler 		mHandler;
+    byte[]              mData;
+    int                 mDataLen;
+
+    ManifestFetcher(Context ctx, Handler handler) {
+        mContext = ctx;
+        mHandler = handler;
+
+        SharedPreferences sp = ctx.getSharedPreferences("prefs", Context.MODE_PRIVATE);
+        mManifestBaseUrl = sp.getString("manifesturl", mDefaultManifestBaseUrl);
+    }
+
+    byte[] getData() { return mData; }
+    int getDataLen() { return mDataLen; }
+
+    public void run() {
+        try {
+            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
+
+            String manifestUrl = mManifestBaseUrl;
+            manifestUrl += "/" + android.os.Build.MODEL;
+            manifestUrl += "/manifest.xml";
+            Log.i("ManifestFetcher", "manifestUrl=" + manifestUrl);
+            HttpClient client = new DefaultHttpClient();
+            HttpGet request = new HttpGet(manifestUrl);
+            HttpResponse response = client.execute(request);
+            InputStream is = response.getEntity().getContent();
+            mData = new byte[64*1024];
+            mDataLen = 0;
+            int len = 0;
+            do {
+                len = is.read(mData, mDataLen, mData.length - mDataLen);
+                if (len > 0) {
+                    mDataLen += len;
+                    if (mDataLen == mData.length) {
+                        throw new Exception("Manifest too large");
+                    }
+                }
+            }
+            while (len > 0);
+            is.close();
+            Log.i("ManifestFetcher", "success");
+        }
+        catch (Exception e) {
+            Log.e("ManifestFetcher", "caught exception: " + e.getMessage());
+            e.printStackTrace();
+        }
+        Message msg = Message.obtain(mHandler, 0, this);
+        mHandler.sendMessage(msg);
+    }
+}
diff --git a/src/tdm/romkeeper/ManifestReader.java b/src/tdm/romkeeper/ManifestReader.java
new file mode 100644
index 0000000..dc08a5f
--- /dev/null
+++ b/src/tdm/romkeeper/ManifestReader.java
@@ -0,0 +1,77 @@
+package tdm.romkeeper;
+
+import java.io.File;
+import java.io.InputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.util.Log;
+
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NamedNodeMap;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+import org.xml.sax.SAXException;
+
+// For testing
+import org.xml.sax.InputSource;
+import java.io.StringReader;
+
+class ManifestReader
+{
+    ManifestReader() {}
+
+    public ArrayList<Rom> readManifest(File cacheDir) {
+        File cacheFile = new File(cacheDir, "manifest.xml");
+        ArrayList<Rom> roms = new ArrayList<Rom>();
+        try {
+            DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+            DocumentBuilder db = dbf.newDocumentBuilder();
+            Document dom = null;
+
+            dom = db.parse(cacheFile);
+            Log.i("ManifestReader", "preparing to traverse");
+            Element root = dom.getDocumentElement();
+            Log.i("ManifestReader", "root: " + root.getTagName());
+            if (!root.getTagName().equals("romlist")) {
+                throw new Exception("Document not a romlist");
+            }
+            NodeList nodes = root.getChildNodes();
+            for (int i = 0; i < nodes.getLength(); ++i) {
+                Node node = nodes.item(i);
+                if (node instanceof Element) {
+                    Element e = (Element)node;
+                    if (e.getTagName().equals("rom")) {
+                        Log.i("ManifestReader", "Found rom");
+                        String name = e.getAttribute("name");
+                        Rom r = new Rom(name);
+                        r.setUrl(e.getAttribute("url"));
+                        r.setFilename(e.getAttribute("filename"));
+                        r.setSize(e.getAttribute("size"));
+                        r.setDigest(e.getAttribute("digest"));
+                        r.setBasis(e.getAttribute("basis"));
+                        r.setDeltaUrl(e.getAttribute("delta-url"));
+                        r.setDeltaFilename(e.getAttribute("delta-filename"));
+                        r.setDeltaSize(e.getAttribute("delta-size"));
+                        roms.add(r);
+                    }
+                }
+            }
+            Log.i("ManifestReader", "success: " + roms.size() + " roms");
+        }
+        catch (Exception e) {
+            Log.e("ManifestReader", "readManifest caught exception: " + e.getMessage());
+            e.printStackTrace();
+        }
+
+        return roms;
+    }
+}
diff --git a/src/tdm/romkeeper/Rom.java b/src/tdm/romkeeper/Rom.java
new file mode 100644
index 0000000..47b7f9f
--- /dev/null
+++ b/src/tdm/romkeeper/Rom.java
@@ -0,0 +1,112 @@
+package tdm.romkeeper;
+
+import android.content.Context;
+
+import android.os.PowerManager;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import android.util.Log;
+
+class Rom
+{
+    private String              mName;
+    private String              mUrl;
+    private String              mFilename;
+    private long                mSize;
+    private String              mDigest;
+    private String              mBasis;
+    private String              mDeltaUrl;
+    private String              mDeltaFilename;
+    private long                mDeltaSize;
+    private boolean             mVerified;
+    private long                mModTime;
+
+    private int toInt(String s) {
+        int i = 0;
+        try {
+            i = Integer.parseInt(s);
+        }
+        catch (Exception e) {
+            // Ignore it
+        }
+        return i;
+    }
+
+    Rom(String name) {
+        mName = name;
+        mSize = 0;
+        mVerified = false;
+        mModTime = 0;
+    }
+
+    void setUrl(String val) { mUrl = val; }
+    void setFilename(String val) { mFilename = val; }
+    void setSize(long val) { mSize = val; }
+    void setDigest(String val) { mDigest = val; }
+    void setBasis(String val) { mBasis = val; }
+    void setDeltaUrl(String val) { mDeltaUrl = val; }
+    void setDeltaFilename(String val) { mDeltaFilename = val; }
+    void setDeltaSize(long val) { mDeltaSize = val; }
+    void setVerified(boolean val, long mtime) { mVerified = val; mModTime = mtime; }
+
+    void setSize(String val) { setSize(toInt(val)); }
+    void setDeltaSize(String val) { setDeltaSize(toInt(val)); }
+
+    String getName() { return mName; }
+    String getUrl() { return mUrl; }
+    String getFilename() { return mFilename; }
+    long getSize() { return mSize; }
+    String getDigest() { return mDigest; }
+    String getBasis() { return mBasis; }
+    String getDeltaUrl() { return mDeltaUrl; }
+    String getDeltaFilename() { return mDeltaFilename; }
+    long getDeltaSize() { return mDeltaSize; }
+    boolean getVerified() { return mVerified; }
+    long getModTime() { return mModTime; }
+
+    boolean exists() {
+        File f = new File("/sdcard/" + mFilename);
+        return f.exists();
+    }
+
+    public String toString() {
+        return mName;
+    }
+
+    void install(Context ctx) {
+        if (!mVerified) {
+            Log.e("RomKeeper", "not verified");
+            return;
+        }
+
+        String cmd = "mkdir -p /cache/recovery " +
+                     "&& echo '--update_package=" +
+                     "/sdcard/" + mFilename + "' > /cache/recovery/command " +
+                     "&& reboot recovery";
+        String[] argv = { "su", "-c", cmd };
+        String res;
+        BufferedReader br = null;
+        try {
+            Process proc = Runtime.getRuntime().exec(argv);
+            br = new BufferedReader(new InputStreamReader(proc.getInputStream()));
+            res = br.readLine();
+
+            PowerManager pm = (PowerManager)ctx.getSystemService(Context.POWER_SERVICE);
+            pm.reboot("recovery");
+        }
+        catch (Exception e) {
+            Log.e("Rom", "install failed: " + e.getMessage());
+            e.printStackTrace();
+        }
+        finally {
+            try { br.close(); } catch (Exception e) {}
+            br = null;
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/RomDataProvider.java.hide b/src/tdm/romkeeper/RomDataProvider.java.hide
new file mode 100644
index 0000000..43ca87f
--- /dev/null
+++ b/src/tdm/romkeeper/RomDataProvider.java.hide
@@ -0,0 +1,210 @@
+package tdm.romkeeper;
+
+import android.content.ContentValues;
+import android.content.Context;
+
+import android.database.Cursor;
+import android.database.SQLException;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.database.sqlite.SQLiteDatabase;
+
+import java.io.File;
+
+public class RomDataProvider
+{
+    private static final string DB_NAME = "roms.db";
+    private static final int DB_VERSION = 1;
+
+    private DbHelper            mHelper;
+    private SQLiteDatabase      mDb;
+
+    private static class DbHelper extends SQLiteOpenHelper
+    {
+        DbHelper(Context ctx) {
+            super(ctx, DB_NAME, null, DB_VERSION);
+        }
+
+        @Override
+        public void onCreate(SQLiteDatabase db) {
+            db.execSQL(
+                "CREATE TABLE romlist (" +
+                    "_id INTEGER PRIMARY KEY AUTOINCREMENT, " +
+                    "name VARCHAR(64) NOT NULL UNIQUE, " +
+                    "url VARCHAR(256) NOT NULL UNIQUE, " +
+                    "filename VARCHAR(64) NOT NULL UNIQUE, " +
+                    "size INTEGER, " +
+                    "digest CHAR(32), " +
+                    "basis VARCHAR(64), " +
+                    "delta VARCHAR(256), " +
+                    "mtime INTEGER, " +
+                    "verified INTEGER" +
+                    ")");
+        }
+
+        @Override
+        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+            db.execSQL("DROP TABLE IF EXISTS romlist");
+            onCreate(db);
+        }
+    }
+
+    DbAdapter(Context ctx) {
+        mHelper = new DbHelper(ctx);
+    }
+
+    @Override
+    public boolean onCreate() {
+        mDb = mHelper.openDatabase(getContext(), DB_NAME, null, DB_VERSION);
+        return (mDb != null);
+    }
+
+    public Cursor query(Uri uri, String[] projection,
+            String selection, String[] selectionArgs, String sort) {
+        SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
+        qb.setTables("romlist");
+        switch (URL_MATCHER.match(url)) {
+        case NAME:
+            qb.setProjectionMap(NAMES_LIST_PROJECTION_MAP);
+            break;
+        case NAME_ID:
+            qb.appendWhere("_id=" + uri.getPathSegments().get(1));
+            break;
+        default:
+            throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+
+        String orderBy;
+        if (TextUtils.isEmpty(sort)) {
+            orderBy = "_id DESC";
+        }
+        else {
+            orderBy = sort;
+        }
+
+        Cursor c = qb.query(mDb, projection, selection, selectionArgs, null, null, orderBy);
+        c.setNotificationUri(getContext().getContentResolver(), uri);
+        return c;
+    }
+
+    @Override
+    public String getType(Uri uri) {
+        switch (URL_MATCHER.match(uri)) {
+        case NAME:
+            return "vnd.android.cursor.dir/tdm.romkeeper.string";
+        case NAME_ID:
+            return "vnd.android.cursor.item/tdm.romkeeper.string";
+        default:
+            throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+    }
+
+    @Override
+    public Uri insert(Uri uri, ContentValues initialValues) {
+        long rowid;
+        ContentValues values;
+        if (initialValues != null) {
+            values = new ContentValues(initialValues);
+        }
+        else {
+            values = new ContentValues();
+        }
+
+        if (URI_MATCHER.match(uri) != NAMES) {
+            throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+
+        Resources r = Resources.getSystem();
+
+        if (!values.containsKey(roms)) {
+            values.put("roms", "");
+        }
+        values.put(SimpleString.Strings._SYNC_VERSION,
+                   Long.toString(System.currentTimeMillis()));
+
+        rowid = mDb.insert("roms", "romlist", values);
+        if (rowid > 0) {
+            Uri uri = Uri.withAppendedPath(SimpleString.Strings.CONTENT_URI,
+                    Long.toString(rowid));
+            getContext().getContentResolver().notifyChange(uri, null);
+        }
+    }
+
+    @Override
+    public int delete(Uri uri, String where, String[] whereArgs) {
+        int count;
+        int rowid = 0;
+        switch (URI_MATCHER.match(uri)) {
+        case NAMES:
+            count = mDb.delete("roms", where, whereArgs);
+            break;
+        case NAME_ID:
+            String segment = uri.getPathSegments().get(1);
+            rowid = Long.parseLong(segment);
+            count = mDb.delete("roms", "_id=" +
+                                      segment +
+                                      (!TextUtils.isEmpty(where) ? " AND (" + where
+                                              + ')' : ""), whereArgs);
+            break;
+        default:
+            throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+    }
+
+    @Override
+    public int update(Uri uri, ContentValues values, String where, String[] whereArgs) {
+        int count;
+        values.put(SimpleString.Strings._SYNC_VERSION,
+                   Long.toString(System.currentTimeMillis()));
+        switch (URL_MATCHER.match(uri)) {
+        case NAMES:
+            count = mDb.update("roms", values, where, whereArgs);
+            break;
+        case NAME_ID:
+            String segment = uri.getPathSegments().get(1);
+            count = mDb.update("roms", values, "_id="
+                    + segment
+                    + (!TextUtils.isEmpty(where) ? " AND (" + where
+                            + ')' : ""), whereArgs);
+            break;
+        default:
+            throw new IllegalArgumentException("Unknown URI " + uri);
+        }
+        getContext().getContentResolver().notifyChange(url, null);
+        return count;
+    }
+
+    /* Rom extensions */
+
+    Rom get(String name) {
+        Rom r = null;
+        Cursor c = mDb.query("romlist",
+                new String[] { "url", "filename", "size", "digest", "basis", "delta" },
+                "name="+name, null, null, null, null);
+        if (c != null) {
+            c.moveToFirst();
+            int idx = 0;
+            r = new Rom(name);
+            r.setUrl(c.getString(idx++));
+            r.setFilename(c.getString(idx++));
+            r.setSize(c.getInt(idx++));
+            r.setDigest(c.getString(idx++));
+            r.setBasis(c.getString(idx++));
+            r.setDelta(c.getString(idx++));
+        }
+        return r;
+    }
+
+    void setVerified(String name, boolean val) {
+        File f = new File(name);
+        ContentValues values = new ContentValues();
+        if (val) {
+            values.put("mtime", f.lastModified());
+            values.put("verified", 1);
+        }
+        else {
+            values.put("mtime", 0);
+            values.put("verified", 0);
+        }
+        mDb.update("romlist", values, "name="+name, null);
+    }
+}
diff --git a/src/tdm/romkeeper/RomKeeperActivity.java b/src/tdm/romkeeper/RomKeeperActivity.java
new file mode 100644
index 0000000..54936d1
--- /dev/null
+++ b/src/tdm/romkeeper/RomKeeperActivity.java
@@ -0,0 +1,316 @@
+package tdm.romkeeper;
+
+import android.app.Activity;
+import android.app.AlarmManager;
+import android.app.ListActivity;
+import android.app.PendingIntent;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+
+import android.database.sqlite.SQLiteDatabase;
+import android.database.Cursor;
+
+import android.net.Uri;
+
+import android.os.Bundle;
+import android.os.Environment;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Message;
+import android.os.Messenger;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import android.util.Log;
+
+import android.view.KeyEvent;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.MenuInflater;
+import android.view.View;
+
+import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
+import android.widget.ArrayAdapter;
+import android.widget.ListAdapter;
+import android.widget.ListView;
+import android.widget.SimpleCursorAdapter;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import android.widget.RelativeLayout;
+
+import java.util.ArrayList;
+
+import android.content.BroadcastReceiver;
+
+public class RomKeeperActivity extends Activity
+                               implements AdapterView.OnItemClickListener,
+                                          ManifestCheckerCallback,
+                                          DbObserver
+{
+    static final String         TAG = "RomKeeper";
+
+    Rom                                 mCurrentRom;
+    private boolean                     mShowingDetail;
+
+    private ManifestCheckerService      mManifestCheckerService;
+    private ServiceConnection mManifestCheckerConnection = new ServiceConnection() {
+        public void onServiceConnected(ComponentName className, IBinder service) {
+            mManifestCheckerService = ((ManifestCheckerService.ManifestCheckerBinder)service).getService();
+        }
+        public void onServiceDisconnected(ComponentName className) {
+            mManifestCheckerService = null;
+        }
+    };
+
+    private ListView                    mRomListView;
+    private ArrayAdapter<Rom>           mRomListAdapter;
+
+    private ListView                    mRomDetailView;
+    private ArrayAdapter<String>        mRomDetailAdapter;
+
+    private DbAdapter                   mDb;
+
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle state) {
+        super.onCreate(state);
+
+        bindService(new Intent(RomKeeperActivity.this, ManifestCheckerService.class),
+                mManifestCheckerConnection, Context.BIND_AUTO_CREATE);
+
+        /*
+         * This does not work, returns NULL.  WTF?!?
+         * mRomListView = (ListView)findViewById(R.id.romlist_view);
+         */
+        mRomListView = new ListView(this);
+        mRomListAdapter = new ArrayAdapter<Rom>(this,
+                R.layout.list_item, new ArrayList<Rom>());
+        mRomListView.setAdapter(mRomListAdapter);
+        mRomListView.setOnItemClickListener(this);
+
+        mRomDetailView = new ListView(this);
+        mRomDetailAdapter = new ArrayAdapter<String>(this,
+                R.layout.list_item, new ArrayList<String>());
+        mRomDetailView.setAdapter(mRomDetailAdapter);
+
+        /* XXX: should not do this in the UI thread */
+        mDb = DbAdapter.getInstance(this);
+
+        Cursor c = mDb.getRomCursor();
+        if (c.moveToFirst()) {
+            while (!c.isAfterLast()) {
+                String name = c.getString(1);
+                Log.i("RomKeeperActivity", "onCreate: found rom " + name);
+                Rom r = mDb.get(name);
+                mRomListAdapter.add(r);
+                c.moveToNext();
+            }
+        }
+        c.close();
+
+        mDb.registerObserver(this);
+
+        showRomList();
+    }
+
+    protected void onResume() {
+        Log.e(TAG, "onResume");
+        super.onResume();
+    }
+
+    protected void onSaveInstanceState(Bundle state) {
+        Log.i(TAG, "onSaveInstanceState");
+    }
+
+    protected void onPause() {
+        Log.e(TAG, "onPause");
+        super.onPause();
+        // ...?
+    }
+
+    protected void onStop() {
+        Log.e(TAG, "onStop");
+        super.onStop();
+    }
+
+    protected void onDestroy() {
+        unbindService(mManifestCheckerConnection);
+
+        super.onDestroy();
+    }
+
+    void showRomList() {
+        mShowingDetail = false;
+        mCurrentRom = null;
+
+        setContentView(mRomListView);
+    }
+
+    void showRomDetail(Rom r) {
+        mShowingDetail = true;
+        mCurrentRom = r;
+
+        refreshRomDetail();
+        setContentView(mRomDetailView);
+    }
+
+    public boolean onCreateOptionsMenu(Menu menu) {
+        Log.i(TAG, "onCreateOptionsMenu");
+        return super.onCreateOptionsMenu(menu);
+    }
+
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        Log.i(TAG, "onPrepareOptionsMenu");
+        menu.clear();
+        MenuInflater inflater = getMenuInflater();
+        if (mShowingDetail) {
+            inflater.inflate(R.menu.romdetail_options_menu, menu);
+        }
+        else {
+            inflater.inflate(R.menu.romlist_options_menu, menu);
+        }
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    private void doCheckManifest() {
+        mManifestCheckerService.doCheck(this);
+    }
+
+    public void onManifestCheckComplete(boolean isUpdated) {
+        Log.i("RomKeeperActivity", "onManifestCheckComplete");
+        if (isUpdated) {
+            ManifestReader reader = new ManifestReader();
+            ArrayList<Rom> newList = reader.readManifest(getCacheDir());
+
+            /* XXX: should not do this in the UI thread */
+            mDb.deleteAll();
+            mRomListAdapter.clear();
+            mRomListAdapter.notifyDataSetChanged();
+            for (Rom r : newList) {
+                mDb.insert(r);
+            }
+        }
+    }
+
+    private void refreshRomDetail() {
+        mRomDetailAdapter.clear();
+        Rom r = mCurrentRom;
+
+        String status = "not present";
+        if (r.exists()) {
+            status = "present";
+        }
+        if (r.getVerified()) {
+            status = "verified";
+        }
+
+        mRomDetailAdapter.add("name: " + r.getName());
+        mRomDetailAdapter.add("filename: " + r.getFilename());
+        mRomDetailAdapter.add("size: " + r.getSize());
+        mRomDetailAdapter.add("digest: " + r.getDigest());
+        mRomDetailAdapter.add("status: " + status);
+        mRomDetailAdapter.notifyDataSetChanged();
+    }
+
+    private void fetchRom() {
+        if (mCurrentRom == null) {
+            Log.e(TAG, "fetchRom: no current rom");
+            return;
+        }
+
+        Intent i = new Intent(this, FileDownloadService.class);
+        i.setData(Uri.parse(mCurrentRom.getUrl()));
+        i.putExtra(FileDownloadService.EXTRA_NAME, mCurrentRom.getName());
+        i.putExtra(FileDownloadService.EXTRA_FILENAME, mCurrentRom.getFilename());
+        i.putExtra(FileDownloadService.EXTRA_SIZE, mCurrentRom.getSize());
+        i.putExtra(FileDownloadService.EXTRA_DIGEST, mCurrentRom.getDigest());
+        i.putExtra(FileDownloadService.EXTRA_BASIS, mCurrentRom.getBasis());
+        i.putExtra(FileDownloadService.EXTRA_DELTAURL, mCurrentRom.getDeltaUrl());
+        i.putExtra(FileDownloadService.EXTRA_DELTAFILENAME, mCurrentRom.getDeltaFilename());
+        i.putExtra(FileDownloadService.EXTRA_DELTASIZE, mCurrentRom.getDeltaSize());
+        startService(i);
+    }
+
+    void onFetchRomUpdate() {
+        refreshRomDetail(); //XXX: inefficient
+    }
+
+    void onFetchRomDone() {
+        Toast.makeText(this, "Fetch complete", Toast.LENGTH_SHORT).show();
+    }
+
+    private void installRom() {
+        if (mCurrentRom == null) {
+            Log.e(TAG, "installRom: no current rom");
+            return;
+        }
+        mCurrentRom.install(this);
+    }
+
+    private void showSettings() {
+        startActivity(new Intent(this, RomKeeperPreferenceActivity.class));
+    }
+
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+        case R.id.menu_refresh:
+            doCheckManifest();
+            break;
+        case R.id.menu_fetch:
+            fetchRom();
+            break;
+        case R.id.menu_install:
+            installRom();
+            break;
+        case R.id.menu_settings:
+            showSettings();
+            break;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+        Log.i(TAG, "onItemClick: pos=" + position + ", id=" + id);
+        if (mShowingDetail) {
+            // XXX: do anything useful here?
+            return;
+        }
+        Rom r = mRomListAdapter.getItem(position);
+        showRomDetail(r);
+    }
+
+    public void onBackPressed() {
+        Log.i("RomKeeperActivity", "onBackPressed");
+        if (mShowingDetail) {
+            Log.i("RomKeeperActivity", ".. showing rom list");
+            showRomList();
+            return;
+        }
+        Log.i("RomKeeperActivity", ".. calling super");
+        super.onBackPressed();
+    }
+
+    public void onContentInsert(String name) {
+        Rom r = mDb.get(name);
+        mRomListAdapter.add(r);
+        mRomListAdapter.notifyDataSetChanged();
+    }
+    public void onContentUpdate(String name) {
+        if (mShowingDetail && mCurrentRom != null && mCurrentRom.getName().equals(name)) {
+            mCurrentRom = mDb.get(name);
+            refreshRomDetail();
+        }
+    }
+    public void onContentDelete(String name) {
+        Rom r = mDb.get(name);
+        mRomListAdapter.remove(r);
+        if (mShowingDetail && mCurrentRom != null && mCurrentRom.getName().equals(name)) {
+            showRomList();
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/RomKeeperPreferenceActivity.java b/src/tdm/romkeeper/RomKeeperPreferenceActivity.java
new file mode 100644
index 0000000..58e4ff7
--- /dev/null
+++ b/src/tdm/romkeeper/RomKeeperPreferenceActivity.java
@@ -0,0 +1,14 @@
+package tdm.romkeeper;
+
+import android.preference.PreferenceActivity;
+
+import android.os.Bundle;
+
+public class RomKeeperPreferenceActivity extends PreferenceActivity
+{
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        addPreferencesFromResource(R.xml.preferences);
+    }
+}
diff --git a/src/tdm/romkeeper/StartupReceiver.java b/src/tdm/romkeeper/StartupReceiver.java
new file mode 100644
index 0000000..b904e60
--- /dev/null
+++ b/src/tdm/romkeeper/StartupReceiver.java
@@ -0,0 +1,25 @@
+package tdm.romkeeper;
+
+import android.app.AlarmManager;
+import android.app.PendingIntent;
+
+import android.util.Log;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+
+public class StartupReceiver extends BroadcastReceiver
+{
+    @Override
+    public void onReceive(Context ctx, Intent intent) {
+        Log.i("StartupReceiver", "onReceive called");
+        SharedPreferences sp = ctx.getSharedPreferences("prefs", Context.MODE_PRIVATE);
+        boolean autocheck = sp.getBoolean("autocheck", false);
+        if (autocheck) {
+            Intent i = new Intent(ctx, ManifestCheckerService.class);
+            ctx.startService(i);
+        }
+    }
+}
diff --git a/src/tdm/romkeeper/StreamListener.java b/src/tdm/romkeeper/StreamListener.java
new file mode 100644
index 0000000..6d006db
--- /dev/null
+++ b/src/tdm/romkeeper/StreamListener.java
@@ -0,0 +1,7 @@
+package tdm.romkeeper;
+
+interface StreamListener
+{
+    void updateBytesRead(int len);
+    void updateBytesWritten(int len);
+}