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authorSean Leonard <meanderingcode@aetherislands.net>2013-11-13 17:19:46 -0800
committerSean Leonard <meanderingcode@aetherislands.net>2013-11-13 17:19:46 -0800
commit3c5f545eee991c545724911664297bb3fe9f3680 (patch)
tree18239a3067ebb1f6f1bec4fe891c7059167a55d5 /src
parent5e2588f199edef2c54d6357c53e4bcbcb148d5a9 (diff)
parentcc794fbbb09b2ff9fdcaaf199dbaa4816a92df87 (diff)
Merge branch 'bug/overly-complex-certificate-verification-method' into develop
Diffstat (limited to 'src')
-rw-r--r--src/se/leap/bitmaskclient/ConfigHelper.java12
-rw-r--r--src/se/leap/bitmaskclient/ConfigurationWizard.java28
-rw-r--r--src/se/leap/bitmaskclient/DownloadFailedDialog.java59
-rw-r--r--src/se/leap/bitmaskclient/ProviderAPI.java188
4 files changed, 208 insertions, 79 deletions
diff --git a/src/se/leap/bitmaskclient/ConfigHelper.java b/src/se/leap/bitmaskclient/ConfigHelper.java
index b916a9ac..d2253dfe 100644
--- a/src/se/leap/bitmaskclient/ConfigHelper.java
+++ b/src/se/leap/bitmaskclient/ConfigHelper.java
@@ -178,6 +178,18 @@ public class ConfigHelper {
shared_preferences_editor.remove(shared_preferences_key);
return shared_preferences_editor.commit();
}
+
+ public static boolean checkErroneousDownload(String downloaded_string) {
+ try {
+ if(new JSONObject(downloaded_string).has(ProviderAPI.ERRORS) || downloaded_string.isEmpty()) {
+ return true;
+ } else {
+ return false;
+ }
+ } catch(JSONException e) {
+ return false;
+ }
+ }
/**
* Treat the input as the MSB representation of a number,
diff --git a/src/se/leap/bitmaskclient/ConfigurationWizard.java b/src/se/leap/bitmaskclient/ConfigurationWizard.java
index a0ac1bc2..c03d7c9e 100644
--- a/src/se/leap/bitmaskclient/ConfigurationWizard.java
+++ b/src/se/leap/bitmaskclient/ConfigurationWizard.java
@@ -124,8 +124,10 @@ implements ProviderListFragment.Callbacks, NewProviderDialog.NewProviderDialogIn
//Toast.makeText(this, getResources().getString(R.string.config_error_parsing), Toast.LENGTH_LONG);
setResult(RESULT_CANCELED, mConfigState);
}
- }
+ }
else if(resultCode == ProviderAPI.INCORRECTLY_UPDATED_PROVIDER_DOT_JSON) {
+ String reason_to_fail = resultData.getString(ProviderAPI.ERRORS);
+ showDownloadFailedDialog(getCurrentFocus(), reason_to_fail);
mProgressDialog.dismiss();
setResult(RESULT_CANCELED, mConfigState);
}
@@ -142,8 +144,9 @@ implements ProviderListFragment.Callbacks, NewProviderDialog.NewProviderDialogIn
}
}
else if(resultCode == ProviderAPI.INCORRECTLY_DOWNLOADED_JSON_FILES) {
- //Toast.makeText(getApplicationContext(), R.string.incorrectly_downloaded_json_files_message, Toast.LENGTH_LONG).show();
- mProgressDialog.dismiss();
+ //Toast.makeText(getApplicationContext(), R.string.incorrectly_downloaded_json_files_message, Toast.LENGTH_LONG).show();
+ String reason_to_fail = resultData.getString(ProviderAPI.ERRORS);
+ showDownloadFailedDialog(getCurrentFocus(), reason_to_fail);
setResult(RESULT_CANCELED, mConfigState);
}
else if(resultCode == ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE) {
@@ -319,6 +322,25 @@ implements ProviderListFragment.Callbacks, NewProviderDialog.NewProviderDialogIn
* use it anonymously (if possible)
* or cancel his/her election pressing the back button.
* @param view
+ * @param reason_to_fail
+ */
+ public void showDownloadFailedDialog(View view, String reason_to_fail) {
+ FragmentTransaction fragment_transaction = getFragmentManager().beginTransaction();
+ Fragment previous_provider_details_dialog = getFragmentManager().findFragmentByTag(DownloadFailedDialog.TAG);
+ if (previous_provider_details_dialog != null) {
+ fragment_transaction.remove(previous_provider_details_dialog);
+ }
+ fragment_transaction.addToBackStack(null);
+
+ DialogFragment newFragment = DownloadFailedDialog.newInstance(reason_to_fail);
+ newFragment.show(fragment_transaction, DownloadFailedDialog.TAG);
+ }
+
+ /**
+ * Once selected a provider, this fragment offers the user to log in,
+ * use it anonymously (if possible)
+ * or cancel his/her election pressing the back button.
+ * @param view
*/
public void showProviderDetails(View view) {
FragmentTransaction fragment_transaction = getFragmentManager().beginTransaction();
diff --git a/src/se/leap/bitmaskclient/DownloadFailedDialog.java b/src/se/leap/bitmaskclient/DownloadFailedDialog.java
new file mode 100644
index 00000000..3ce101a6
--- /dev/null
+++ b/src/se/leap/bitmaskclient/DownloadFailedDialog.java
@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2013 LEAP Encryption Access Project and contributers
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+ package se.leap.bitmaskclient;
+
+import se.leap.bitmaskclient.R;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.DialogFragment;
+import android.content.DialogInterface;
+import android.os.Bundle;
+
+/**
+ * Implements a dialog to show why a download failed.
+ *
+ * @author parmegv
+ *
+ */
+public class DownloadFailedDialog extends DialogFragment {
+
+ public static String TAG = "downloaded_failed_dialog";
+ private String reason_to_fail;
+ /**
+ * @return a new instance of this DialogFragment.
+ */
+ public static DialogFragment newInstance(String reason_to_fail) {
+ DownloadFailedDialog dialog_fragment = new DownloadFailedDialog();
+ dialog_fragment.reason_to_fail = reason_to_fail;
+ return dialog_fragment;
+ }
+
+ @Override
+ public Dialog onCreateDialog(Bundle savedInstanceState) {
+ AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
+
+ builder.setMessage(reason_to_fail)
+ .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
+ public void onClick(DialogInterface dialog, int id) {
+ dialog.dismiss();
+ }
+ });
+
+ // Create the AlertDialog object and return it
+ return builder.create();
+ }
+}
diff --git a/src/se/leap/bitmaskclient/ProviderAPI.java b/src/se/leap/bitmaskclient/ProviderAPI.java
index 39b44e24..1408efc8 100644
--- a/src/se/leap/bitmaskclient/ProviderAPI.java
+++ b/src/se/leap/bitmaskclient/ProviderAPI.java
@@ -57,6 +57,7 @@ import org.apache.http.client.ClientProtocolException;
import org.jboss.security.srp.SRPParameters;
import org.json.JSONException;
import org.json.JSONObject;
+import org.json.JSONStringer;
import se.leap.bitmaskclient.R;
import se.leap.bitmaskclient.ProviderListContent.ProviderItem;
@@ -128,14 +129,8 @@ public class ProviderAPI extends IntentService {
CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ORIGINAL_SERVER) );
}
- private void displayToast(final int toast_string_id) {
- mHandler.post(new Runnable() {
-
- @Override
- public void run() {
- Toast.makeText(ProviderAPI.this, toast_string_id, Toast.LENGTH_LONG).show();
- }
- });
+ private String formatErrorMessage(final int toast_string_id) {
+ return "{ \"" + ERRORS + "\" : \""+getResources().getString(toast_string_id)+"\" }";
}
@Override
@@ -145,10 +140,11 @@ public class ProviderAPI extends IntentService {
Bundle parameters = command.getBundleExtra(PARAMETERS);
if(action.equalsIgnoreCase(DOWNLOAD_JSON_FILES_BUNDLE_EXTRA)) {
- if(!downloadJsonFiles(parameters)) {
- receiver.send(INCORRECTLY_DOWNLOADED_JSON_FILES, Bundle.EMPTY);
- } else {
+ Bundle result = downloadJsonFiles(parameters);
+ if(result.getBoolean(RESULT_KEY)) {
receiver.send(CORRECTLY_DOWNLOADED_JSON_FILES, Bundle.EMPTY);
+ } else {
+ receiver.send(INCORRECTLY_DOWNLOADED_JSON_FILES, result);
}
} else if(action.equalsIgnoreCase(UPDATE_PROVIDER_DOTJSON)) {
Bundle result = updateProviderDotJSON(parameters);
@@ -162,7 +158,7 @@ public class ProviderAPI extends IntentService {
if(result.getBoolean(RESULT_KEY)) {
receiver.send(CORRECTLY_UPDATED_PROVIDER_DOT_JSON, result);
} else {
- receiver.send(INCORRECTLY_DOWNLOADED_JSON_FILES, Bundle.EMPTY);
+ receiver.send(INCORRECTLY_DOWNLOADED_JSON_FILES, result);
}
} else if (action.equalsIgnoreCase(SRP_AUTH)) {
Bundle session_id_bundle = authenticateBySRP(parameters);
@@ -191,28 +187,53 @@ public class ProviderAPI extends IntentService {
* @param task
* @return true if eip-service.json was parsed as a JSON object correctly.
*/
- private boolean downloadJsonFiles(Bundle task) {
+ private Bundle downloadJsonFiles(Bundle task) {
+ Bundle result = new Bundle();
String cert_url = task.getString(Provider.CA_CERT);
String eip_service_json_url = task.getString(EIP.KEY);
boolean danger_on = task.getBoolean(ProviderItem.DANGER_ON);
try {
String cert_string = downloadWithCommercialCA(cert_url, danger_on);
- if(cert_string.isEmpty()) return false;
- X509Certificate certCert = ConfigHelper.parseX509CertificateFromString(cert_string);
- cert_string = Base64.encodeToString( certCert.getEncoded(), Base64.DEFAULT);
- ConfigHelper.saveSharedPref(Provider.CA_CERT, "-----BEGIN CERTIFICATE-----\n"+cert_string+"-----END CERTIFICATE-----");
-
- String eip_service_string = downloadWithCommercialCA(eip_service_json_url, danger_on);
- ConfigHelper.saveSharedPref(EIP.KEY, new JSONObject(eip_service_string));
-
- return true;
+
+ if(ConfigHelper.checkErroneousDownload(cert_string)) {
+ JSONObject possible_errors = new JSONObject(cert_string);
+ String reason_to_fail = "";
+ if(cert_string.isEmpty())
+ reason_to_fail = "Empty certificate downloaded";
+ else
+ reason_to_fail = possible_errors.getString(ERRORS);
+ result.putString(ERRORS, reason_to_fail);
+ result.putBoolean(RESULT_KEY, false);
+ } else {
+ X509Certificate certCert = ConfigHelper.parseX509CertificateFromString(cert_string);
+ cert_string = Base64.encodeToString( certCert.getEncoded(), Base64.DEFAULT);
+ ConfigHelper.saveSharedPref(Provider.CA_CERT, "-----BEGIN CERTIFICATE-----\n"+cert_string+"-----END CERTIFICATE-----");
+ }
} catch (JSONException e) {
- return false;
+ e.printStackTrace();
+ result.putBoolean(RESULT_KEY, false);
} catch (CertificateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
- return false;
+ result.putBoolean(RESULT_KEY, false);
+ }
+
+ try {
+ String eip_service_string = downloadWithCommercialCA(eip_service_json_url, danger_on);
+ JSONObject eip_service_json = new JSONObject(eip_service_string);
+ if(eip_service_json.has(ERRORS)) {
+ String reason_to_fail = eip_service_json.getString(ERRORS);
+ result.putString(ERRORS, reason_to_fail);
+ result.putBoolean(RESULT_KEY, false);
+ }
+ else ConfigHelper.saveSharedPref(EIP.KEY, eip_service_json);
+
+ result.putBoolean(RESULT_KEY, true);
+ } catch (JSONException e) {
+ result.putBoolean(RESULT_KEY, false);
}
+
+ return result;
}
/**
@@ -452,12 +473,18 @@ public class ProviderAPI extends IntentService {
result.putBoolean(RESULT_KEY, false);
} else {
JSONObject provider_json = new JSONObject(provider_dot_json_string);
- ConfigHelper.saveSharedPref(EIP.ALLOWED_ANON, provider_json.getJSONObject(Provider.SERVICE).getBoolean(EIP.ALLOWED_ANON));
+ if(provider_json.has(ERRORS)) {
+ String reason_to_fail = provider_json.getString(ERRORS);
+ result.putString(ERRORS, reason_to_fail);
+ result.putBoolean(RESULT_KEY, false);
+ } else {
+ ConfigHelper.saveSharedPref(EIP.ALLOWED_ANON, provider_json.getJSONObject(Provider.SERVICE).getBoolean(EIP.ALLOWED_ANON));
- //ProviderListContent.addItem(new ProviderItem(provider_name, provider_json_url, provider_json, custom, danger_on));
- result.putBoolean(RESULT_KEY, true);
- result.putString(Provider.KEY, provider_json.toString());
- result.putBoolean(ProviderItem.DANGER_ON, danger_on);
+ //ProviderListContent.addItem(new ProviderItem(provider_name, provider_json_url, provider_json, custom, danger_on));
+ result.putBoolean(RESULT_KEY, true);
+ result.putString(Provider.KEY, provider_json.toString());
+ result.putBoolean(ProviderItem.DANGER_ON, danger_on);
+ }
}
} catch (JSONException e) {
result.putBoolean(RESULT_KEY, false);
@@ -487,19 +514,26 @@ public class ProviderAPI extends IntentService {
} else {
JSONObject provider_json = new JSONObject(provider_json_string);
- ConfigHelper.saveSharedPref(Provider.KEY, provider_json);
- ConfigHelper.saveSharedPref(ProviderItem.DANGER_ON, danger_on);
- ConfigHelper.saveSharedPref(EIP.ALLOWED_ANON, provider_json.getJSONObject(Provider.SERVICE).getBoolean(EIP.ALLOWED_ANON));
- ProviderItem added_provider = new ProviderItem(provider_name, provider_json_url, provider_json, custom, danger_on);
- ProviderListContent.addItem(added_provider);
-
- result.putString(Provider.NAME, added_provider.getName());
- result.putBoolean(RESULT_KEY, true);
- result.putString(Provider.KEY, provider_json.toString());
- result.putBoolean(ProviderItem.DANGER_ON, danger_on);
+ if(provider_json.has(ERRORS)) {
+ String reason_to_fail = provider_json.getString(ERRORS);
+ result.putString(ERRORS, reason_to_fail);
+ result.putBoolean(RESULT_KEY, false);
+ } else {
+ ConfigHelper.saveSharedPref(Provider.KEY, provider_json);
+ ConfigHelper.saveSharedPref(ProviderItem.DANGER_ON, danger_on);
+ ConfigHelper.saveSharedPref(EIP.ALLOWED_ANON, provider_json.getJSONObject(Provider.SERVICE).getBoolean(EIP.ALLOWED_ANON));
+ ProviderItem added_provider = new ProviderItem(provider_name, provider_json_url, provider_json, custom, danger_on);
+ ProviderListContent.addItem(added_provider);
+
+ result.putString(Provider.NAME, added_provider.getName());
+ result.putBoolean(RESULT_KEY, true);
+ result.putString(Provider.KEY, provider_json.toString());
+ result.putBoolean(ProviderItem.DANGER_ON, danger_on);
+ }
}
} catch (JSONException e) {
result.putBoolean(RESULT_KEY, false);
+ result.putString(ERRORS, "Corrupt download");
}
return result;
@@ -525,17 +559,14 @@ public class ProviderAPI extends IntentService {
url_connection.setConnectTimeout(seconds_of_timeout*1000);
json_file_content = new Scanner(url_connection.getInputStream()).useDelimiter("\\A").next();
} catch (MalformedURLException e) {
- displayToast(R.string.malformed_url);
+ json_file_content = formatErrorMessage(R.string.malformed_url);
} catch(SocketTimeoutException e) {
- displayToast(R.string.server_is_down_message);
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- displayToast(R.string.server_is_down_message);
+ json_file_content = formatErrorMessage(R.string.server_is_down_message);
} catch (IOException e) {
if(provider_url != null) {
json_file_content = downloadWithProviderCA(provider_url, danger_on);
} else {
- displayToast(R.string.certificate_error);
+ json_file_content = formatErrorMessage(R.string.certificate_error);
}
} catch (Exception e) {
if(provider_url != null && danger_on) {
@@ -547,7 +578,7 @@ public class ProviderAPI extends IntentService {
}
/**
- * Tries to download the contents of the provided url using not commercially validated CA certificate from chosen provider.
+ * Tries to download the contents of the provided url using not commercially validated CA certificate from chosen provider.
* @param url
* @param danger_on true to download CA certificate in case it has not been downloaded.
* @return an empty string if it fails, the url content if not.
@@ -565,16 +596,13 @@ public class ProviderAPI extends IntentService {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (UnknownHostException e) {
- displayToast(R.string.server_is_down_message);
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- displayToast(R.string.server_is_down_message);
+ json_file_content = formatErrorMessage(R.string.server_is_down_message);
} catch (IOException e) {
// The downloaded certificate doesn't validate our https connection.
if(danger_on) {
json_file_content = downloadWithoutCA(url);
} else {
- displayToast(R.string.certificate_error);
+ json_file_content = formatErrorMessage(R.string.certificate_error);
}
} catch (KeyStoreException e) {
// TODO Auto-generated catch block
@@ -650,11 +678,11 @@ public class ProviderAPI extends IntentService {
System.out.println("String ignoring certificate = " + string);
} catch (FileNotFoundException e) {
e.printStackTrace();
- displayToast(R.string.server_is_down_message);
+ string = formatErrorMessage(R.string.server_is_down_message);
} catch (IOException e) {
// The downloaded certificate doesn't validate our https connection.
e.printStackTrace();
- displayToast(R.string.certificate_error);
+ string = formatErrorMessage(R.string.certificate_error);
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
@@ -734,32 +762,40 @@ public class ProviderAPI extends IntentService {
boolean danger_on = ConfigHelper.getBoolFromSharedPref(ProviderItem.DANGER_ON);
String cert_string = downloadWithCommercialCA(new_cert_string_url, danger_on);
if(!cert_string.isEmpty()) {
- // API returns concatenated cert & key. Split them for OpenVPN options
- String certificateString = null, keyString = null;
- String[] certAndKey = cert_string.split("(?<=-\n)");
- for (int i=0; i < certAndKey.length-1; i++){
- if ( certAndKey[i].contains("KEY") ) {
- keyString = certAndKey[i++] + certAndKey[i];
+ if(ConfigHelper.checkErroneousDownload(cert_string)) {
+ String reason_to_fail = provider_json.getString(ERRORS);
+ //result.putString(ConfigHelper.ERRORS_KEY, reason_to_fail);
+ //result.putBoolean(ConfigHelper.RESULT_KEY, false);
+ return false;
+ } else {
+
+ // API returns concatenated cert & key. Split them for OpenVPN options
+ String certificateString = null, keyString = null;
+ String[] certAndKey = cert_string.split("(?<=-\n)");
+ for (int i=0; i < certAndKey.length-1; i++){
+ if ( certAndKey[i].contains("KEY") ) {
+ keyString = certAndKey[i++] + certAndKey[i];
+ }
+ else if ( certAndKey[i].contains("CERTIFICATE") ) {
+ certificateString = certAndKey[i++] + certAndKey[i];
+ }
}
- else if ( certAndKey[i].contains("CERTIFICATE") ) {
- certificateString = certAndKey[i++] + certAndKey[i];
+ try {
+ RSAPrivateKey keyCert = ConfigHelper.parseRsaKeyFromString(keyString);
+ keyString = Base64.encodeToString( keyCert.getEncoded(), Base64.DEFAULT );
+ ConfigHelper.saveSharedPref(EIP.PRIVATE_KEY, "-----BEGIN RSA PRIVATE KEY-----\n"+keyString+"-----END RSA PRIVATE KEY-----");
+
+ X509Certificate certCert = ConfigHelper.parseX509CertificateFromString(certificateString);
+ certificateString = Base64.encodeToString( certCert.getEncoded(), Base64.DEFAULT);
+ ConfigHelper.saveSharedPref(EIP.CERTIFICATE, "-----BEGIN CERTIFICATE-----\n"+certificateString+"-----END CERTIFICATE-----");
+
+ return true;
+ } catch (CertificateException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ return false;
}
}
- try {
- RSAPrivateKey keyCert = ConfigHelper.parseRsaKeyFromString(keyString);
- keyString = Base64.encodeToString( keyCert.getEncoded(), Base64.DEFAULT );
- ConfigHelper.saveSharedPref(EIP.PRIVATE_KEY, "-----BEGIN RSA PRIVATE KEY-----\n"+keyString+"-----END RSA PRIVATE KEY-----");
-
- X509Certificate certCert = ConfigHelper.parseX509CertificateFromString(certificateString);
- certificateString = Base64.encodeToString( certCert.getEncoded(), Base64.DEFAULT);
- ConfigHelper.saveSharedPref(EIP.CERTIFICATE, "-----BEGIN CERTIFICATE-----\n"+certificateString+"-----END CERTIFICATE-----");
-
- return true;
- } catch (CertificateException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- return false;
- }
} else {
return false;
}