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CA certificate settings fragment

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Change-Id: I8d4b595d6cc8d20be9bea655c7674c86a9183818
This commit is contained in:
Brian Carlstrom
2011-06-26 16:05:21 -07:00
parent 3a5079823a
commit f6f4e303ab
7 changed files with 573 additions and 0 deletions
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1
Android.mk
View File

@@ -1,6 +1,7 @@
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_JAVA_LIBRARIES := bouncycastle
LOCAL_STATIC_JAVA_LIBRARIES := guava
LOCAL_MODULE_TAGS := optional

41
res/layout/trusted_credential.xml Normal file
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@@ -0,0 +1,41 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2011 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:paddingRight="?android:attr/scrollbarSize"
android:background="?android:attr/selectableItemBackground"
android:padding="15dip"
>
<TextView
android:id="@+id/trusted_credential_subject"
android:layout_width="0px"
android:layout_height="wrap_content"
android:layout_weight="1"
/>
<!-- checkbox is invisible and not gone so that the height is consistent between tabs -->
<CheckBox
android:id="@+id/trusted_credential_status"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="invisible"
android:clickable="false"
android:focusable="false"
android:layout_weight="0"
/>
</LinearLayout>

34
res/layout/trusted_credential_details.xml Normal file
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@@ -0,0 +1,34 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2011 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<FrameLayout
android:id="@+id/cert_details"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<Button
android:id="@+id/cert_remove_button"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="right"
android:layout_margin="6dip"
/>
</LinearLayout>

80
res/layout/trusted_credentials.xml Normal file
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@@ -0,0 +1,80 @@
<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2011 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<TabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp"
>
<TabWidget
android:id="@android:id/tabs"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<FrameLayout
android:id="@android:id/tabcontent"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="5dp"
>
<FrameLayout
android:id="@+id/system_tab"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ProgressBar
android:id="@+id/system_progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>
<ListView
android:id="@+id/system_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="gone"
>
</ListView>
</FrameLayout>
<FrameLayout
android:id="@+id/user_tab"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ProgressBar
android:id="@+id/user_progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>
<ListView
android:id="@+id/user_list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:visibility="gone"
>
</ListView>
</FrameLayout>
</FrameLayout>
</LinearLayout>
</TabHost>

22
res/values/strings.xml
View File

@@ -3091,6 +3091,10 @@ found in the list of installed applications.</string>
<string name="credentials_reset">Clear credentials</string>
<!-- Summary of preference to reset credential storage [CHAR LIMIT=NONE] -->
<string name="credentials_reset_summary">Remove all certificates</string>
<!-- Title of preference to display trusted credentials (aka CA certificates) [CHAR LIMIT=30] -->
<string name="trusted_credentials">Trusted credentials</string>
<!-- Summary of preference to display trusted credentials (aka CA certificates) [CHAR LIMIT=NONE] -->
<string name="trusted_credentials_summary">Display trusted CA certificates</string>
<!-- Title of dialog to enable credential storage [CHAR LIMIT=30] -->
<string name="credentials_unlock">Enter password</string>
@@ -3533,4 +3537,22 @@ found in the list of installed applications.</string>
<string name="vpn_menu_edit">Edit network</string>
<!-- Menu item to delete a VPN network. [CHAR LIMIT=40] -->
<string name="vpn_menu_delete">Delete network</string>
<!-- Tab label for built-in system CA certificates. -->
<string name="trusted_credentials_system_tab">System</string>
<!-- Tab label for user added CA certificates. -->
<string name="trusted_credentials_user_tab">User</string>
<!-- Button label for disabling a system CA certificate. -->
<string name="trusted_credentials_disable_label">Disable</string>
<!-- Button label for enabling a system CA certificate. -->
<string name="trusted_credentials_enable_label">Enable</string>
<!-- Button label for removing a user CA certificate. -->
<string name="trusted_credentials_remove_label">Remove</string>
<!-- Alert dialog confirmation when enabling a system CA certificate. -->
<string name="trusted_credentials_enable_confirmation">Enable the system CA certificate?</string>
<!-- Alert dialog confirmation when disabling a system CA certificate. -->
<string name="trusted_credentials_disable_confirmation">Disable the system CA certificate?</string>
<!-- Alert dialog confirmation when removing a user CA certificate. -->
<string name="trusted_credentials_remove_confirmation">Permanently remove the user CA certificate?</string>
</resources>

5
res/xml/security_settings_misc.xml
View File

@@ -56,6 +56,11 @@
<PreferenceCategory android:title="@string/credentials_title"
android:persistent="false">
<Preference android:title="@string/trusted_credentials"
android:summary="@string/trusted_credentials_summary"
android:persistent="false"
android:fragment="com.android.settings.TrustedCredentials"/>
<Preference android:title="@string/credentials_install"
android:summary="@string/credentials_install_summary"
android:persistent="false">

390
src/com/android/settings/TrustedCredentials.java Normal file
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@@ -0,0 +1,390 @@
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.Fragment;
import android.content.DialogInterface;
import android.net.http.SslCertificate;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.RemoteException;
import android.security.IKeyChainService;
import android.security.KeyChain;
import android.security.KeyChain.KeyChainConnection;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.FrameLayout;
import android.widget.ListView;
import android.widget.TabHost;
import android.widget.TextView;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import org.apache.harmony.xnet.provider.jsse.TrustedCertificateStore;
public class TrustedCredentials extends Fragment {
private static final String TAG = "TrustedCredentials";
private enum Tab {
SYSTEM("system",
R.string.trusted_credentials_system_tab,
R.id.system_tab,
R.id.system_progress,
R.id.system_list,
true),
USER("user",
R.string.trusted_credentials_user_tab,
R.id.user_tab,
R.id.user_progress,
R.id.user_list,
false);
private final String mTag;
private final int mLabel;
private final int mView;
private final int mProgress;
private final int mList;
private final boolean mCheckbox;
private Tab(String tag, int label, int view, int progress, int list, boolean checkbox) {
mTag = tag;
mLabel = label;
mView = view;
mProgress = progress;
mList = list;
mCheckbox = checkbox;
}
private Set<String> getAliases(TrustedCertificateStore store) {
switch (this) {
case SYSTEM:
return store.allSystemAliases();
case USER:
return store.userAliases();
}
throw new AssertionError();
}
private boolean deleted(TrustedCertificateStore store, String alias) {
switch (this) {
case SYSTEM:
return !store.containsAlias(alias);
case USER:
return false;
}
throw new AssertionError();
}
private int getButtonLabel(CertHolder certHolder) {
switch (this) {
case SYSTEM:
if (certHolder.mDeleted) {
return R.string.trusted_credentials_enable_label;
}
return R.string.trusted_credentials_disable_label;
case USER:
return R.string.trusted_credentials_remove_label;
}
throw new AssertionError();
}
private int getButtonConfirmation(CertHolder certHolder) {
switch (this) {
case SYSTEM:
if (certHolder.mDeleted) {
return R.string.trusted_credentials_enable_confirmation;
}
return R.string.trusted_credentials_disable_confirmation;
case USER:
return R.string.trusted_credentials_remove_confirmation;
}
throw new AssertionError();
}
private void postOperationUpdate(boolean ok, CertHolder certHolder) {
if (ok) {
if (certHolder.mTab.mCheckbox) {
certHolder.mDeleted = !certHolder.mDeleted;
} else {
certHolder.mAdapter.mCertHolders.remove(certHolder);
}
certHolder.mAdapter.notifyDataSetChanged();
} else {
// bail, reload to reset to known state
certHolder.mAdapter.load();
}
}
}
// be careful not to use this on the UI thread since it is does file operations
private final TrustedCertificateStore mStore = new TrustedCertificateStore();
private TabHost mTabHost;
@Override public View onCreateView(
LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
mTabHost = (TabHost) inflater.inflate(R.layout.trusted_credentials, parent, false);
mTabHost.setup();
addTab(Tab.SYSTEM);
// TODO add Install button on Tab.USER to go to CertInstaller like KeyChainActivity
addTab(Tab.USER);
return mTabHost;
}
private void addTab(Tab tab) {
TabHost.TabSpec systemSpec = mTabHost.newTabSpec(tab.mTag)
.setIndicator(getActivity().getString(tab.mLabel))
.setContent(tab.mView);
mTabHost.addTab(systemSpec);
ListView lv = (ListView) mTabHost.findViewById(tab.mList);
final TrustedCertificateAdapter adapter = new TrustedCertificateAdapter(tab);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
showCertDialog(adapter.getItem(pos));
}
});
}
private class TrustedCertificateAdapter extends BaseAdapter {
private final List<CertHolder> mCertHolders = new ArrayList<CertHolder>();
private final Tab mTab;
private TrustedCertificateAdapter(Tab tab) {
mTab = tab;
load();
}
private void load() {
new AliasLoader().execute();
}
@Override public int getCount() {
return mCertHolders.size();
}
@Override public CertHolder getItem(int position) {
return mCertHolders.get(position);
}
@Override public long getItemId(int position) {
return position;
}
@Override public View getView(int position, View view, ViewGroup parent) {
ViewHolder holder;
if (view == null) {
LayoutInflater inflater = LayoutInflater.from(getActivity());
view = inflater.inflate(R.layout.trusted_credential, parent, false);
holder = new ViewHolder();
holder.mSubjectView = (TextView)view.findViewById(R.id.trusted_credential_subject);
holder.mCheckBox = (CheckBox) view.findViewById(R.id.trusted_credential_status);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
CertHolder certHolder = mCertHolders.get(position);
holder.mSubjectView.setText(certHolder.mSubject);
if (mTab.mCheckbox) {
holder.mCheckBox.setChecked(!certHolder.mDeleted);
holder.mCheckBox.setVisibility(View.VISIBLE);
}
return view;
};
private class AliasLoader extends AsyncTask<Void, Void, List<CertHolder>> {
@Override protected void onPreExecute() {
View content = mTabHost.getTabContentView();
content.findViewById(mTab.mProgress).setVisibility(View.VISIBLE);
content.findViewById(mTab.mList).setVisibility(View.GONE);
}
@Override protected List<CertHolder> doInBackground(Void... params) {
Set<String> aliases = mTab.getAliases(mStore);
List<CertHolder> certHolders = new ArrayList<CertHolder>(aliases.size());
for (String alias : aliases) {
X509Certificate cert = (X509Certificate) mStore.getCertificate(alias, true);
certHolders.add(new CertHolder(mStore,
TrustedCertificateAdapter.this,
mTab,
alias,
cert));
}
Collections.sort(certHolders);
return certHolders;
}
@Override protected void onPostExecute(List<CertHolder> certHolders) {
mCertHolders.clear();
mCertHolders.addAll(certHolders);
notifyDataSetChanged();
View content = mTabHost.getTabContentView();
content.findViewById(mTab.mProgress).setVisibility(View.GONE);
content.findViewById(mTab.mList).setVisibility(View.VISIBLE);
}
}
}
private static class CertHolder implements Comparable<CertHolder> {
private final TrustedCertificateStore mStore;
private final TrustedCertificateAdapter mAdapter;
private final Tab mTab;
private final String mAlias;
private final X509Certificate mX509Cert;
private final SslCertificate mSslCert;
private final String mSubject;
private boolean mDeleted;
private CertHolder(TrustedCertificateStore store,
TrustedCertificateAdapter adapter,
Tab tab,
String alias,
X509Certificate x509Cert) {
mStore = store;
mAdapter = adapter;
mTab = tab;
mAlias = alias;
mX509Cert = x509Cert;
mSslCert = new SslCertificate(x509Cert);
String cn = mSslCert.getIssuedTo().getCName();
String o = mSslCert.getIssuedTo().getOName();
String ou = mSslCert.getIssuedTo().getUName();
StringBuilder sb = new StringBuilder();
if (!cn.isEmpty()) {
sb.append("CN=" + cn);
}
if (!o.isEmpty()) {
if (sb.length() != 0) {
sb.append(", ");
}
sb.append("O=" + o);
}
if (!ou.isEmpty()) {
if (sb.length() != 0) {
sb.append(", ");
}
sb.append("OU=" + ou);
}
if (sb.length() != 0) {
mSubject = sb.toString();
} else {
mSubject = mSslCert.getIssuedTo().getDName();
}
mDeleted = mTab.deleted(mStore, mAlias);
}
@Override public int compareTo(CertHolder o) {
return this.mSubject.compareTo(o.mSubject);
}
@Override public boolean equals(Object o) {
if (!(o instanceof CertHolder)) {
return false;
}
CertHolder other = (CertHolder) o;
return mAlias.equals(other.mAlias);
}
@Override public int hashCode() {
return mAlias.hashCode();
}
}
private static class ViewHolder {
private TextView mSubjectView;
private CheckBox mCheckBox;
}
private void showCertDialog(final CertHolder certHolder) {
View view = View.inflate(getActivity(), R.layout.trusted_credential_details, null);
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setTitle(com.android.internal.R.string.ssl_certificate);
builder.setView(view);
builder.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int id) {
dialog.dismiss();
}
});
final Dialog certDialog = builder.create();
FrameLayout details = (FrameLayout) view.findViewById(R.id.cert_details);
details.addView(certHolder.mSslCert.inflateCertificateView(getActivity()));
Button removeButton = (Button) view.findViewById(R.id.cert_remove_button);
removeButton.setText(certHolder.mTab.getButtonLabel(certHolder));
removeButton.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
builder.setMessage(certHolder.mTab.getButtonConfirmation(certHolder));
builder.setPositiveButton(
android.R.string.yes, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int id) {
new AliasOperation(certHolder).execute();
dialog.dismiss();
certDialog.dismiss();
}
});
builder.setNegativeButton(
android.R.string.no, new DialogInterface.OnClickListener() {
@Override public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
});
certDialog.show();
}
private class AliasOperation extends AsyncTask<Void, Void, Boolean> {
private final CertHolder mCertHolder;
private AliasOperation(CertHolder certHolder) {
mCertHolder = certHolder;
}
@Override protected Boolean doInBackground(Void... params) {
try {
KeyChainConnection keyChainConnection = KeyChain.bind(getActivity());
IKeyChainService service = keyChainConnection.getService();
try {
if (mCertHolder.mDeleted) {
byte[] bytes = mCertHolder.mX509Cert.getEncoded();
service.installCaCertificate(bytes);
return true;
} else {
return service.deleteCaCertificate(mCertHolder.mAlias);
}
} finally {
keyChainConnection.close();
}
} catch (CertificateEncodingException e) {
return false;
} catch (IllegalStateException e) {
// used by installCaCertificate to report errors
return false;
} catch (RemoteException e) {
return false;
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
return false;
}
}
@Override protected void onPostExecute(Boolean ok) {
mCertHolder.mTab.postOperationUpdate(ok, mCertHolder);
}
}
}