From def35f55e319e3760591877776c43ef978009f3b Mon Sep 17 00:00:00 2001 From: cyBerta Date: Wed, 3 Jan 2018 14:58:14 +0100 Subject: 8773 add provider details for preseeded providers --- app/src/main/assets/urls/bitmask demo.url | 3 --- 1 file changed, 3 deletions(-) delete mode 100644 app/src/main/assets/urls/bitmask demo.url (limited to 'app/src/main') diff --git a/app/src/main/assets/urls/bitmask demo.url b/app/src/main/assets/urls/bitmask demo.url deleted file mode 100644 index 1a412055..00000000 --- a/app/src/main/assets/urls/bitmask demo.url +++ /dev/null @@ -1,3 +0,0 @@ -{ - "main_url" : "https://demo.bitmask.net/" -} -- cgit v1.2.3 From 319589d126dd5e5fa20ee146f52268c99559f04c Mon Sep 17 00:00:00 2001 From: cyBerta Date: Wed, 3 Jan 2018 15:59:30 +0100 Subject: 8773 preseeded providers implementation for production flavor --- .../bitmaskclient/BaseConfigurationWizard.java | 26 +- .../java/se/leap/bitmaskclient/ConfigHelper.java | 49 +++- .../main/java/se/leap/bitmaskclient/Dashboard.java | 37 ++- .../java/se/leap/bitmaskclient/DefaultedURL.java | 1 + .../leap/bitmaskclient/DownloadFailedDialog.java | 86 +++++- .../main/java/se/leap/bitmaskclient/Provider.java | 136 ++++++--- .../se/leap/bitmaskclient/ProviderApiBase.java | 303 +++++++++++++++++---- .../se/leap/bitmaskclient/ProviderManager.java | 53 ++-- app/src/main/res/values/strings.xml | 5 + 9 files changed, 558 insertions(+), 138 deletions(-) (limited to 'app/src/main') diff --git a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java index 21520dc4..1d675499 100644 --- a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java +++ b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java @@ -56,6 +56,7 @@ import se.leap.bitmaskclient.userstatus.SessionDialog; import static android.view.View.GONE; import static android.view.View.INVISIBLE; import static android.view.View.VISIBLE; +import static se.leap.bitmaskclient.ProviderApiBase.ERRORS; /** * abstract base Activity that builds and shows the list of known available providers. @@ -184,10 +185,10 @@ public abstract class BaseConfigurationWizard extends Activity // by the height of mProgressbar (and the height of the first list item) mProgressBar.setVisibility(INVISIBLE); progressbar_description.setVisibility(INVISIBLE); - + mProgressBar.setProgress(0); } - private void showProgressBar() { + protected void showProgressBar() { mProgressBar.setVisibility(VISIBLE); progressbar_description.setVisibility(VISIBLE); } @@ -231,12 +232,11 @@ public abstract class BaseConfigurationWizard extends Activity } } else if (resultCode == ProviderAPI.PROVIDER_NOK) { mConfigState.setAction(PROVIDER_NOT_SET); - hideProgressBar(); preferences.edit().remove(Provider.KEY).apply(); setResult(RESULT_CANCELED, mConfigState); - String reason_to_fail = resultData.getString(ProviderAPI.ERRORS); + String reason_to_fail = resultData.getString(ERRORS); showDownloadFailedDialog(reason_to_fail); } else if (resultCode == ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE) { mProgressBar.incrementProgressBy(1); @@ -293,7 +293,9 @@ public abstract class BaseConfigurationWizard extends Activity cancelSettingUpProvider(); } + @Override public void cancelSettingUpProvider() { + hideProgressBar(); mConfigState.setAction(PROVIDER_NOT_SET); adapter.showAllProviders(); preferences.edit().remove(Provider.KEY).remove(Constants.PROVIDER_ALLOW_ANONYMOUS).remove(Constants.PROVIDER_KEY).apply(); @@ -369,18 +371,24 @@ public abstract class BaseConfigurationWizard extends Activity /** * Shows an error dialog, if configuring of a provider failed. * - * @param reason_to_fail + * @param reasonToFail */ - public void showDownloadFailedDialog(String reason_to_fail) { + public void showDownloadFailedDialog(String reasonToFail) { try { FragmentTransaction fragment_transaction = fragment_manager.removePreviousFragment(DownloadFailedDialog.TAG); - - DialogFragment newFragment = DownloadFailedDialog.newInstance(reason_to_fail); + DialogFragment newFragment; + try { + JSONObject errorJson = new JSONObject(reasonToFail); + newFragment = DownloadFailedDialog.newInstance(errorJson); + } catch (JSONException e) { + e.printStackTrace(); + newFragment = DownloadFailedDialog.newInstance(reasonToFail); + } newFragment.show(fragment_transaction, DownloadFailedDialog.TAG); } catch (IllegalStateException e) { e.printStackTrace(); mConfigState.setAction(PENDING_SHOW_FAILED_DIALOG); - mConfigState.putExtra(REASON_TO_FAIL, reason_to_fail); + mConfigState.putExtra(REASON_TO_FAIL, reasonToFail); } } diff --git a/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java b/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java index fd1e2080..ed527a54 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java +++ b/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java @@ -27,6 +27,8 @@ import java.security.cert.*; import java.security.interfaces.*; import java.security.spec.*; +import static android.R.attr.name; + /** * Stores constants, and implements auxiliary methods used across all LEAP Android classes. * @@ -34,6 +36,7 @@ import java.security.spec.*; * @author MeanderingCode */ public class ConfigHelper { + private static final String TAG = ConfigHelper.class.getName(); private static KeyStore keystore_trusted; final public static String NG_1024 = @@ -42,7 +45,7 @@ public class ConfigHelper { public static boolean checkErroneousDownload(String downloaded_string) { try { - if (new JSONObject(downloaded_string).has(ProviderAPI.ERRORS) || downloaded_string.isEmpty()) { + if (downloaded_string == null || downloaded_string.isEmpty() || new JSONObject(downloaded_string).has(ProviderAPI.ERRORS)) { return true; } else { return false; @@ -99,6 +102,38 @@ public class ConfigHelper { return (X509Certificate) certificate; } + + public static String loadInputStreamAsString(InputStream inputStream) { + BufferedReader in = null; + try { + StringBuilder buf = new StringBuilder(); + in = new BufferedReader(new InputStreamReader(inputStream)); + + String str; + boolean isFirst = true; + while ( (str = in.readLine()) != null ) { + if (isFirst) + isFirst = false; + else + buf.append('\n'); + buf.append(str); + } + return buf.toString(); + } catch (IOException e) { + Log.e(TAG, "Error opening asset " + name); + } finally { + if (in != null) { + try { + in.close(); + } catch (IOException e) { + Log.e(TAG, "Error closing asset " + name); + } + } + } + + return null; + } + protected static RSAPrivateKey parseRsaKeyFromString(String rsaKeyString) { RSAPrivateKey key = null; try { @@ -126,6 +161,18 @@ public class ConfigHelper { return key; } + public static String base64toHex(String base64_input) { + byte[] byteArray = Base64.decode(base64_input, Base64.DEFAULT); + int readBytes = byteArray.length; + StringBuffer hexData = new StringBuffer(); + int onebyte; + for (int i = 0; i < readBytes; i++) { + onebyte = ((0x000000ff & byteArray[i]) | 0xffffff00); + hexData.append(Integer.toHexString(onebyte).substring(6)); + } + return hexData.toString(); + } + /** * Adds a new X509 certificate given its input stream and its provider name * diff --git a/app/src/main/java/se/leap/bitmaskclient/Dashboard.java b/app/src/main/java/se/leap/bitmaskclient/Dashboard.java index f1e7b3bd..861ce801 100644 --- a/app/src/main/java/se/leap/bitmaskclient/Dashboard.java +++ b/app/src/main/java/se/leap/bitmaskclient/Dashboard.java @@ -38,9 +38,13 @@ import org.json.JSONObject; import java.net.MalformedURLException; import java.net.URL; +import java.util.ArrayList; +import java.util.List; +import java.util.Map; import butterknife.ButterKnife; import butterknife.InjectView; +import de.blinkt.openvpn.core.VpnStatus; import se.leap.bitmaskclient.userstatus.SessionDialog; import se.leap.bitmaskclient.userstatus.User; import se.leap.bitmaskclient.userstatus.UserStatusFragment; @@ -104,6 +108,11 @@ public class Dashboard extends Activity implements ProviderAPIResultReceiver.Rec handleVersion(); } + // initialize app necessities + ProviderAPICommand.initialize(this); + VpnStatus.initLogCache(getApplicationContext().getCacheDir()); + User.init(getString(R.string.default_username)); + prepareEIP(savedInstanceState); } @@ -147,6 +156,7 @@ public class Dashboard extends Activity implements ProviderAPIResultReceiver.Rec try { provider.setUrl(new URL(preferences.getString(Provider.MAIN_URL, ""))); provider.define(new JSONObject(preferences.getString(Provider.KEY, ""))); + provider.setCACert(preferences.getString(Provider.CA_CERT, "")); } catch (MalformedURLException | JSONException e) { e.printStackTrace(); } @@ -246,10 +256,9 @@ public class Dashboard extends Activity implements ProviderAPIResultReceiver.Rec } @SuppressLint("CommitPrefEdits") private void providerToPreferences(Provider provider) { - //FIXME: figure out why .commit() is used and try refactor that cause, currently runs on UI thread - preferences.edit().putBoolean(Constants.PROVIDER_CONFIGURED, true).commit(); - preferences.edit().putString(Provider.MAIN_URL, provider.mainUrl().toString()).apply(); - preferences.edit().putString(Provider.KEY, provider.definition().toString()).apply(); + preferences.edit().putBoolean(Constants.PROVIDER_CONFIGURED, true). + putString(Provider.MAIN_URL, provider.getMainUrl().toString()). + putString(Provider.KEY, provider.getDefinition().toString()).apply(); } private void configErrorDialog() { @@ -399,7 +408,25 @@ public class Dashboard extends Activity implements ProviderAPIResultReceiver.Rec private void switchProvider() { if (provider.hasEIP()) eip_fragment.stopEipIfPossible(); - preferences.edit().clear().apply(); + Map allEntries = preferences.getAll(); + List lastProvidersKeys = new ArrayList<>(); + for (Map.Entry entry : allEntries.entrySet()) { + //sort out all preferences that don't belong to the last provider + if (entry.getKey().startsWith(Provider.KEY + ".") || + entry.getKey().startsWith(Provider.CA_CERT + ".") || + entry.getKey().startsWith(Provider.CA_CERT_FINGERPRINT + ".") + ) { + continue; + } + lastProvidersKeys.add(entry.getKey()); + } + + SharedPreferences.Editor preferenceEditor = preferences.edit(); + for (String key : lastProvidersKeys) { + preferenceEditor.remove(key); + } + preferenceEditor.apply(); + switching_provider = false; startActivityForResult(new Intent(this, ConfigurationWizard.class), SWITCH_PROVIDER); } diff --git a/app/src/main/java/se/leap/bitmaskclient/DefaultedURL.java b/app/src/main/java/se/leap/bitmaskclient/DefaultedURL.java index 8daa7d8c..52c797a4 100644 --- a/app/src/main/java/se/leap/bitmaskclient/DefaultedURL.java +++ b/app/src/main/java/se/leap/bitmaskclient/DefaultedURL.java @@ -31,6 +31,7 @@ public class DefaultedURL { return url; } + @Override public String toString() { return url.toString(); } diff --git a/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java b/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java index da32dbd4..6f6a14de 100644 --- a/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java +++ b/app/src/main/java/se/leap/bitmaskclient/DownloadFailedDialog.java @@ -20,6 +20,16 @@ import android.app.*; import android.content.*; import android.os.*; +import org.json.JSONException; +import org.json.JSONObject; + +import se.leap.bitmaskclient.userstatus.SessionDialog; + +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.DEFAULT; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.valueOf; +import static se.leap.bitmaskclient.ProviderApiBase.ERRORID; +import static se.leap.bitmaskclient.ProviderApiBase.ERRORS; + /** * Implements a dialog to show why a download failed. * @@ -29,6 +39,13 @@ public class DownloadFailedDialog extends DialogFragment { public static String TAG = "downloaded_failed_dialog"; private String reason_to_fail; + private DOWNLOAD_ERRORS downloadError = DEFAULT; + public enum DOWNLOAD_ERRORS { + DEFAULT, + ERROR_CORRUPTED_PROVIDER_JSON, + ERROR_INVALID_CERTIFICATE, + ERROR_CERTIFICATE_PINNING + } /** * @return a new instance of this DialogFragment. @@ -39,32 +56,79 @@ public class DownloadFailedDialog extends DialogFragment { return dialog_fragment; } + /** + * @return a new instance of this DialogFragment. + */ + public static DialogFragment newInstance(JSONObject errorJson) { + DownloadFailedDialog dialog_fragment = new DownloadFailedDialog(); + try { + if (errorJson.has(ERRORS)) { + dialog_fragment.reason_to_fail = errorJson.getString(ERRORS); + } else { + //default error msg + dialog_fragment.reason_to_fail = dialog_fragment.getString(R.string.error_io_exception_user_message); + } + + if (errorJson.has(ERRORID)) { + dialog_fragment.downloadError = valueOf(errorJson.getString(ERRORID)); + } + } catch (Exception e) { + e.printStackTrace(); + dialog_fragment.reason_to_fail = dialog_fragment.getString(R.string.error_io_exception_user_message); + } + return dialog_fragment; + } + @Override public Dialog onCreateDialog(Bundle savedInstanceState) { AlertDialog.Builder builder = new AlertDialog.Builder(getActivity()); - builder.setMessage(reason_to_fail) - .setPositiveButton(R.string.retry, new DialogInterface.OnClickListener() { - public void onClick(DialogInterface dialog, int id) { + .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int id) { + interface_with_ConfigurationWizard.cancelSettingUpProvider(); + dialog.dismiss(); + } + }); + switch (downloadError) { + case ERROR_CORRUPTED_PROVIDER_JSON: + builder.setPositiveButton(R.string.update_provider_details, new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { dismiss(); - interface_with_ConfigurationWizard.retrySetUpProvider(); + interface_with_ConfigurationWizard.updateProviderDetails(); } - }) - .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { - public void onClick(DialogInterface dialog, int id) { - interface_with_ConfigurationWizard.cancelSettingUpProvider(); - dialog.dismiss(); + }); + break; + case ERROR_CERTIFICATE_PINNING: + case ERROR_INVALID_CERTIFICATE: + builder.setPositiveButton(R.string.update_certificate, new DialogInterface.OnClickListener() { + @Override + public void onClick(DialogInterface dialog, int which) { + dismiss(); + interface_with_ConfigurationWizard.updateProviderDetails(); } }); + break; + default: + builder.setPositiveButton(R.string.retry, new DialogInterface.OnClickListener() { + public void onClick(DialogInterface dialog, int id) { + dismiss(); + interface_with_ConfigurationWizard.retrySetUpProvider(); + } + }); + break; + } // Create the AlertDialog object and return it return builder.create(); } public interface DownloadFailedDialogInterface { - public void retrySetUpProvider(); + void retrySetUpProvider(); + + void cancelSettingUpProvider(); - public void cancelSettingUpProvider(); + void updateProviderDetails(); } DownloadFailedDialogInterface interface_with_ConfigurationWizard; diff --git a/app/src/main/java/se/leap/bitmaskclient/Provider.java b/app/src/main/java/se/leap/bitmaskclient/Provider.java index 559b47d1..71a0e149 100644 --- a/app/src/main/java/se/leap/bitmaskclient/Provider.java +++ b/app/src/main/java/se/leap/bitmaskclient/Provider.java @@ -18,9 +18,11 @@ package se.leap.bitmaskclient; import android.os.*; +import com.google.gson.Gson; + import org.json.*; -import java.io.*; +import java.io.Serializable; import java.net.*; import java.util.*; @@ -31,8 +33,11 @@ import java.util.*; public final class Provider implements Parcelable { private JSONObject definition = new JSONObject(); // Represents our Provider's provider.json - private DefaultedURL main_url = new DefaultedURL(); - private String certificate_pin = ""; + private DefaultedURL mainUrl = new DefaultedURL(); + private DefaultedURL apiUrl = new DefaultedURL(); + private String certificatePin = ""; + private String certificatePinEncoding = ""; + private String caCert = ""; final public static String API_URL = "api_uri", @@ -61,13 +66,20 @@ public final class Provider implements Parcelable { public Provider() { } - public Provider(URL main_url) { - this.main_url.setUrl(main_url); + public Provider(URL mainUrl) { + this.mainUrl.setUrl(mainUrl); } - public Provider(URL main_url, String certificate_pin) { - this.main_url.setUrl(main_url); - this.certificate_pin = certificate_pin; + public Provider(URL mainUrl, String caCert, /*String certificatePin,*/ String definition) { + this.mainUrl.setUrl(mainUrl); + this.caCert = caCert; + try { + this.definition = new JSONObject(definition); + parseDefinition(this.definition); + } catch (JSONException e) { + e.printStackTrace(); + } + } public static final Parcelable.Creator CREATOR @@ -81,42 +93,57 @@ public final class Provider implements Parcelable { } }; - private Provider(Parcel in) { - try { - main_url.setUrl(new URL(in.readString())); - String definition_string = in.readString(); - if (!definition_string.isEmpty()) - definition = new JSONObject((definition_string)); - } catch (MalformedURLException | JSONException e) { - e.printStackTrace(); - } - } - public boolean isConfigured() { - return !main_url.isDefault() && definition.length() > 0; + return !mainUrl.isDefault() && + definition.length() > 0 && + !apiUrl.isDefault() && + caCert != null && + !caCert.isEmpty(); } protected void setUrl(URL url) { - main_url.setUrl(url); + mainUrl.setUrl(url); } protected void define(JSONObject provider_json) { definition = provider_json; + parseDefinition(definition); } - protected JSONObject definition() { + protected JSONObject getDefinition() { return definition; } protected String getDomain() { - return main_url.getDomain(); + return mainUrl.getDomain(); + } + + protected DefaultedURL getMainUrl() { + return mainUrl; + } + + protected DefaultedURL getApiUrl() { + return apiUrl; + } + + protected String certificatePin() { return certificatePin; } + + protected boolean hasCertificatePin() { + return certificatePin != null && !certificatePin.isEmpty(); + } + + boolean hasCaCert() { + return caCert != null && !caCert.isEmpty(); } - protected DefaultedURL mainUrl() { - return main_url; + public boolean hasDefinition() { + return definition != null && definition.length() > 0; } - protected String certificatePin() { return certificate_pin; } + + public String getCaCert() { + return caCert; + } public String getName() { // Should we pass the locale in, or query the system here? @@ -127,8 +154,8 @@ public final class Provider implements Parcelable { name = definition.getJSONObject(API_TERM_NAME).getString(lang); else throw new JSONException("Provider not defined"); } catch (JSONException e) { - if (main_url != null) { - String host = main_url.getDomain(); + if (mainUrl != null) { + String host = mainUrl.getDomain(); name = host.substring(0, host.indexOf(".")); } } @@ -191,24 +218,29 @@ public final class Provider implements Parcelable { @Override public void writeToParcel(Parcel parcel, int i) { - if(main_url != null) - parcel.writeString(main_url.toString()); + if(mainUrl != null) + parcel.writeString(mainUrl.toString()); if (definition != null) parcel.writeString(definition.toString()); + if (caCert != null) + parcel.writeString(caCert); } @Override public boolean equals(Object o) { if (o instanceof Provider) { Provider p = (Provider) o; - return p.mainUrl().getDomain().equals(mainUrl().getDomain()); + return p.getMainUrl().getDomain().equals(getMainUrl().getDomain()); } else return false; } public JSONObject toJson() { JSONObject json = new JSONObject(); try { - json.put(Provider.MAIN_URL, main_url); + json.put(Provider.MAIN_URL, mainUrl); + //TODO: add other fields here? + //this is used to save custom providers as json. I guess this doesn't work correctly + //TODO 2: verify that } catch (JSONException e) { e.printStackTrace(); } @@ -217,6 +249,44 @@ public final class Provider implements Parcelable { @Override public int hashCode() { - return mainUrl().getDomain().hashCode(); + return getMainUrl().getDomain().hashCode(); + } + + @Override + public String toString() { + return new Gson().toJson(this); + } + + private Provider(Parcel in) { + try { + mainUrl.setUrl(new URL(in.readString())); + String definitionString = in.readString(); + if (!definitionString.isEmpty()) { + definition = new JSONObject((definitionString)); + parseDefinition(definition); + } + String caCert = in.readString(); + if (!caCert.isEmpty()) { + this.caCert = caCert; + } + } catch (MalformedURLException | JSONException e) { + e.printStackTrace(); + } } + + private void parseDefinition(JSONObject definition) { + try { + String pin = definition.getString(CA_CERT_FINGERPRINT); + this.certificatePin = pin.split(":")[1].trim(); + this.certificatePinEncoding = pin.split(":")[0].trim(); + this.apiUrl.setUrl(new URL(definition.getString(API_URL))); + } catch (JSONException | ArrayIndexOutOfBoundsException | MalformedURLException e) { + e.printStackTrace(); + } + } + + public void setCACert(String cert) { + this.caCert = cert; + } + } diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java index 6e3b8b08..dfc48bee 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java @@ -45,6 +45,8 @@ import java.security.NoSuchAlgorithmException; import java.security.NoSuchProviderException; import java.security.cert.CertificateEncodingException; import java.security.cert.CertificateException; +import java.security.cert.CertificateExpiredException; +import java.security.cert.CertificateNotYetValidException; import java.security.cert.X509Certificate; import java.security.interfaces.RSAPrivateKey; import java.util.ArrayList; @@ -71,6 +73,12 @@ import se.leap.bitmaskclient.userstatus.SessionDialog; import se.leap.bitmaskclient.userstatus.User; import se.leap.bitmaskclient.userstatus.UserStatus; +import static android.text.TextUtils.isEmpty; +import static se.leap.bitmaskclient.ConfigHelper.base64toHex; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CERTIFICATE_PINNING; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CORRUPTED_PROVIDER_JSON; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_INVALID_CERTIFICATE; +import static se.leap.bitmaskclient.Provider.MAIN_URL; import static se.leap.bitmaskclient.R.string.certificate_error; import static se.leap.bitmaskclient.R.string.error_io_exception_user_message; import static se.leap.bitmaskclient.R.string.error_json_exception_user_message; @@ -96,6 +104,7 @@ public abstract class ProviderApiBase extends IntentService { final public static String TAG = ProviderAPI.class.getSimpleName(), SET_UP_PROVIDER = "setUpProvider", + UPDATE_PROVIDER_DETAILS = "updateProviderDetails", DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON", SIGN_UP = "srpRegister", LOG_IN = "srpAuth", @@ -105,6 +114,7 @@ public abstract class ProviderApiBase extends IntentService { RESULT_KEY = "result", RECEIVER_KEY = "receiver", ERRORS = "errors", + ERRORID = "errorId", UPDATE_PROGRESSBAR = "update_progressbar", CURRENT_PROGRESS = "current_progress", DOWNLOAD_EIP_SERVICE = TAG + ".DOWNLOAD_EIP_SERVICE"; @@ -123,16 +133,18 @@ public abstract class ProviderApiBase extends IntentService { CORRECTLY_DOWNLOADED_EIP_SERVICE = 13, INCORRECTLY_DOWNLOADED_EIP_SERVICE = 14; - public static boolean + protected static boolean CA_CERT_DOWNLOADED = false, PROVIDER_JSON_DOWNLOADED = false, EIP_SERVICE_JSON_DOWNLOADED = false; - protected static String last_provider_main_url; + protected static String lastProviderMainUrl; protected static boolean go_ahead = true; protected static SharedPreferences preferences; - protected static String provider_api_url; - protected static String provider_ca_cert_fingerprint; + protected static String providerApiUrl; + protected static String providerCaCertFingerprint; + protected static String providerCaCert; + protected static JSONObject providerDefinition; protected Resources resources; public static void stop() { @@ -155,7 +167,7 @@ public abstract class ProviderApiBase extends IntentService { } public static String lastProviderMainUrl() { - return last_provider_main_url; + return lastProviderMainUrl; } @Override @@ -164,17 +176,26 @@ public abstract class ProviderApiBase extends IntentService { String action = command.getAction(); Bundle parameters = command.getBundleExtra(PARAMETERS); - if (provider_api_url == null && preferences.contains(Provider.KEY)) { + if (providerApiUrl == null && preferences.contains(Provider.KEY)) { try { JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); - provider_api_url = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION); + providerApiUrl = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION); go_ahead = true; } catch (JSONException e) { go_ahead = false; } } - - if (action.equalsIgnoreCase(SET_UP_PROVIDER)) { + if (action.equals(UPDATE_PROVIDER_DETAILS)) { + resetProviderDetails(); + Bundle task = new Bundle(); + task.putString(MAIN_URL, lastProviderMainUrl); + Bundle result = setUpProvider(task); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(PROVIDER_OK, result); + } else { + receiver.send(PROVIDER_NOK, result); + } + } else if (action.equalsIgnoreCase(SET_UP_PROVIDER)) { Bundle result = setUpProvider(parameters); if (go_ahead) { if (result.getBoolean(RESULT_KEY)) { @@ -226,6 +247,13 @@ public abstract class ProviderApiBase extends IntentService { } } + protected void resetProviderDetails() { + CA_CERT_DOWNLOADED = PROVIDER_JSON_DOWNLOADED = false; + deleteProviderDetailsFromPreferences(providerDefinition); + providerCaCert = ""; + providerDefinition = new JSONObject(); + } + protected String formatErrorMessage(final int toastStringId) { return formatErrorMessage(getResources().getString(toastStringId)); } @@ -243,22 +271,31 @@ public abstract class ProviderApiBase extends IntentService { } } - private JSONObject getErrorMessageAsJson(String message) { + protected void addErrorMessageToJson(JSONObject jsonObject, String errorMessage) { try { - return new JSONObject(formatErrorMessage(message)); + jsonObject.put(ERRORS, errorMessage); } catch (JSONException e) { e.printStackTrace(); - return new JSONObject(); } } - private OkHttpClient initHttpClient(JSONObject initError, boolean isSelfSigned) { + + protected void addErrorMessageToJson(JSONObject jsonObject, String errorMessage, String errorId) { + try { + jsonObject.put(ERRORS, errorMessage); + jsonObject.put(ERRORID, errorId); + } catch (JSONException e) { + e.printStackTrace(); + } + } + + private OkHttpClient initHttpClient(JSONObject initError, String certificate) { try { TLSCompatSocketFactory sslCompatFactory; ConnectionSpec spec = getConnectionSpec(); OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder(); - if (isSelfSigned) { - sslCompatFactory = new TLSCompatSocketFactory(preferences.getString(Provider.CA_CERT, "")); + if (!isEmpty(certificate)) { + sslCompatFactory = new TLSCompatSocketFactory(certificate); } else { sslCompatFactory = new TLSCompatSocketFactory(); } @@ -266,40 +303,39 @@ public abstract class ProviderApiBase extends IntentService { clientBuilder.cookieJar(getCookieJar()) .connectionSpecs(Collections.singletonList(spec)); return clientBuilder.build(); - } catch (IllegalStateException e) { - e.printStackTrace(); - initError = getErrorMessageAsJson(String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage())); - } catch (KeyStoreException e) { + } catch (IllegalArgumentException e) { e.printStackTrace(); - initError = getErrorMessageAsJson(String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage())); - } catch (KeyManagementException e) { + addErrorMessageToJson(initError, resources.getString(R.string.certificate_error)); + } catch (IllegalStateException | KeyManagementException | KeyStoreException e) { e.printStackTrace(); - initError = getErrorMessageAsJson(String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage())); - } catch (NoSuchAlgorithmException e) { + addErrorMessageToJson(initError, String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage())); + } catch (NoSuchAlgorithmException | NoSuchProviderException e) { e.printStackTrace(); - initError = getErrorMessageAsJson(resources.getString(error_no_such_algorithm_exception_user_message)); + addErrorMessageToJson(initError, resources.getString(error_no_such_algorithm_exception_user_message)); } catch (CertificateException e) { e.printStackTrace(); - initError = getErrorMessageAsJson(resources.getString(certificate_error)); + addErrorMessageToJson(initError, resources.getString(certificate_error)); } catch (UnknownHostException e) { e.printStackTrace(); - initError = getErrorMessageAsJson(resources.getString(server_unreachable_message)); + addErrorMessageToJson(initError, resources.getString(server_unreachable_message)); } catch (IOException e) { e.printStackTrace(); - initError = getErrorMessageAsJson(resources.getString(error_io_exception_user_message)); - } catch (NoSuchProviderException e) { - e.printStackTrace(); - initError = getErrorMessageAsJson(resources.getString(error_no_such_algorithm_exception_user_message)); + addErrorMessageToJson(initError, resources.getString(error_io_exception_user_message)); } return null; } protected OkHttpClient initCommercialCAHttpClient(JSONObject initError) { - return initHttpClient(initError, false); + return initHttpClient(initError, null); } protected OkHttpClient initSelfSignedCAHttpClient(JSONObject initError) { - return initHttpClient(initError, true); + String certificate = preferences.getString(Provider.CA_CERT, ""); + return initHttpClient(initError, certificate); + } + + protected OkHttpClient initSelfSignedCAHttpClient(JSONObject initError, String certificate) { + return initHttpClient(initError, certificate); } @NonNull @@ -376,7 +412,7 @@ public abstract class ProviderApiBase extends IntentService { BigInteger password_verifier = client.calculateV(username, password, salt); - JSONObject api_result = sendNewUserDataToSRPServer(provider_api_url, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16), okHttpClient); + JSONObject api_result = sendNewUserDataToSRPServer(providerApiUrl, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16), okHttpClient); Bundle result = new Bundle(); if (api_result.has(ERRORS)) @@ -431,13 +467,13 @@ public abstract class ProviderApiBase extends IntentService { LeapSRPSession client = new LeapSRPSession(username, password); byte[] A = client.exponential(); - JSONObject step_result = sendAToSRPServer(provider_api_url, username, new BigInteger(1, A).toString(16), okHttpClient); + JSONObject step_result = sendAToSRPServer(providerApiUrl, username, new BigInteger(1, A).toString(16), okHttpClient); try { String salt = step_result.getString(LeapSRPSession.SALT); byte[] Bbytes = new BigInteger(step_result.getString("B"), 16).toByteArray(); byte[] M1 = client.response(new BigInteger(salt, 16).toByteArray(), Bbytes); if (M1 != null) { - step_result = sendM1ToSRPServer(provider_api_url, username, M1, okHttpClient); + step_result = sendM1ToSRPServer(providerApiUrl, username, M1, okHttpClient); setTokenIfAvailable(step_result); byte[] M2 = new BigInteger(step_result.getString(LeapSRPSession.M2), 16).toByteArray(); if (client.verify(M2)) { @@ -629,6 +665,9 @@ public abstract class ProviderApiBase extends IntentService { try { response = okHttpClient.newCall(request).execute(); + if (!response.isSuccessful()){ + return formatErrorMessage(error_json_exception_user_message); + } InputStream inputStream = response.body().byteStream(); Scanner scanner = new Scanner(inputStream).useDelimiter("\\A"); @@ -638,12 +677,10 @@ public abstract class ProviderApiBase extends IntentService { } catch (NullPointerException npe) { plainResponseBody = formatErrorMessage(error_json_exception_user_message); - } catch (UnknownHostException e) { + } catch (UnknownHostException | SocketTimeoutException e) { plainResponseBody = formatErrorMessage(server_unreachable_message); } catch (MalformedURLException e) { plainResponseBody = formatErrorMessage(malformed_url); - } catch (SocketTimeoutException e) { - plainResponseBody = formatErrorMessage(server_unreachable_message); } catch (SSLHandshakeException e) { plainResponseBody = formatErrorMessage(certificate_error); } catch (ConnectException e) { @@ -693,6 +730,7 @@ public abstract class ProviderApiBase extends IntentService { } catch(JSONException e) { return false; } catch(NullPointerException e) { + e.printStackTrace(); return false; } } @@ -714,11 +752,7 @@ public abstract class ProviderApiBase extends IntentService { result = real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim()); } else result = false; - } catch (JSONException e) { - result = false; - } catch (NoSuchAlgorithmException e) { - result = false; - } catch (CertificateEncodingException e) { + } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException e) { result = false; } } @@ -726,16 +760,179 @@ public abstract class ProviderApiBase extends IntentService { return result; } - private String base64toHex(String base64_input) { - byte[] byteArray = Base64.decode(base64_input, Base64.DEFAULT); - int readBytes = byteArray.length; - StringBuffer hexData = new StringBuffer(); - int onebyte; - for (int i = 0; i < readBytes; i++) { - onebyte = ((0x000000ff & byteArray[i]) | 0xffffff00); - hexData.append(Integer.toHexString(onebyte).substring(6)); + protected Bundle validateCertificateForProvider(String cert_string, JSONObject providerDefinition, String mainUrl) { + Bundle result = new Bundle(); + result.putBoolean(RESULT_KEY, false); + + if (ConfigHelper.checkErroneousDownload(cert_string)) { + return result; + } + + X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); + if (certificate == null) { + return setErrorResult(result, getString(R.string.warning_corrupted_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); + } + try { + certificate.checkValidity(); + String fingerprint = getCaCertFingerprint(providerDefinition); + String encoding = fingerprint.split(":")[0]; + String expected_fingerprint = fingerprint.split(":")[1]; + String real_fingerprint = base64toHex(Base64.encodeToString( + MessageDigest.getInstance(encoding).digest(certificate.getEncoded()), + Base64.DEFAULT)); + if (!real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim())) { + return setErrorResult(result, getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString()); + } + + if (!hasApiUrlExpectedDomain(providerDefinition, mainUrl)){ + return setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + } + + if (!canConnect(cert_string, providerDefinition, result)) { + return result; + } + } catch (NoSuchAlgorithmException e ) { + return setErrorResult(result, resources.getString(error_no_such_algorithm_exception_user_message), null); + } catch (ArrayIndexOutOfBoundsException e) { + return setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + } catch (CertificateEncodingException | CertificateNotYetValidException | CertificateExpiredException e) { + return setErrorResult(result, getString(R.string.warning_expired_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); + } + + result.putBoolean(RESULT_KEY, true); + return result; + } + + protected Bundle setErrorResult(Bundle result, String errorMessage, String errorId) { + JSONObject errorJson = new JSONObject(); + if (errorId != null) { + addErrorMessageToJson(errorJson, errorMessage, errorId); + } else { + addErrorMessageToJson(errorJson, errorMessage); + } + result.putString(ERRORS, errorJson.toString()); + return result; + } + + /** + * This method aims to prevent attacks where the provider.json file got manipulated by a third party. + * The main url is visible to the provider when setting up a new provider. + * The user is responsible to check that this is the provider main url he intends to connect to. + * + * @param providerDefinition + * @param mainUrlString + * @return + */ + private boolean hasApiUrlExpectedDomain(JSONObject providerDefinition, String mainUrlString) { + // fix against "api_uri": "https://calyx.net.malicious.url.net:4430", + String apiUrlString = getApiUrl(providerDefinition); + String providerDomain = getProviderDomain(providerDefinition); + if (mainUrlString.contains(providerDomain) && apiUrlString.contains(providerDomain + ":")) { + return true; + } + return false; + } + + private boolean canConnect(String caCert, JSONObject providerDefinition, Bundle result) { + JSONObject errorJson = new JSONObject(); + String baseUrl = getApiUrl(providerDefinition); + + OkHttpClient okHttpClient = initSelfSignedCAHttpClient(errorJson, caCert); + if (okHttpClient == null) { + result.putString(ERRORS, errorJson.toString()); + return false; } - return hexData.toString(); + + List> headerArgs = getAuthorizationHeader(); + String plain_response = requestStringFromServer(baseUrl, "GET", null, headerArgs, okHttpClient); + + try { + if (new JSONObject(plain_response).has(ERRORS)) { + result.putString(ERRORS, plain_response); + return false; + } + } catch (JSONException e) { + //eat me + } + + return true; + } + + protected String getCaCertFingerprint(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.CA_CERT_FINGERPRINT); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected String getApiUrl(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.API_URL); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected String getApiUrlWithVersion(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.API_URL) + "/" + providerDefinition.getString(Provider.API_VERSION); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected void deleteProviderDetailsFromPreferences(JSONObject providerDefinition) { + String providerDomain = getProviderDomain(providerDefinition); + + if (preferences.contains(Provider.KEY + "." + providerDomain)) { + preferences.edit().remove(Provider.KEY + "." + providerDomain).apply(); + } + if (preferences.contains(Provider.CA_CERT + "." + providerDomain)) { + preferences.edit().remove(Provider.CA_CERT + "." + providerDomain).apply(); + } + if (preferences.contains(Provider.CA_CERT_FINGERPRINT + "." + providerDomain)) { + preferences.edit().remove(Provider.CA_CERT_FINGERPRINT + "." + providerDomain).apply(); + } + } + + protected String getPersistedCaCertFingerprint(String providerDomain) { + try { + return getPersistedProviderDefinition(providerDomain).getString(Provider.CA_CERT_FINGERPRINT); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected JSONObject getPersistedProviderDefinition(String providerDomain) { + try { + return new JSONObject(preferences.getString(Provider.KEY + "." + providerDomain, "")); + } catch (JSONException e) { + e.printStackTrace(); + return new JSONObject(); + } + } + + protected String getPersistedProviderCA(String providerDomain) { + return preferences.getString(Provider.CA_CERT + "." + providerDomain, ""); + } + + protected String getProviderDomain(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.DOMAIN); + } catch (JSONException e) { + e.printStackTrace(); + } + + return ""; + } + + protected boolean hasUpdatedProviderDetails(String providerDomain) { + return preferences.contains(Provider.KEY + "." + providerDomain) && preferences.contains(Provider.CA_CERT + "." + providerDomain); } /** @@ -774,7 +971,7 @@ public abstract class ProviderApiBase extends IntentService { return false; } - String deleteUrl = provider_api_url + "/logout"; + String deleteUrl = providerApiUrl + "/logout"; int progress = 0; Request.Builder requestBuilder = new Request.Builder() diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java b/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java index abbdeb66..cf703631 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java @@ -1,20 +1,31 @@ package se.leap.bitmaskclient; -import android.content.res.*; - -import com.pedrogomez.renderers.*; - -import org.json.*; - -import java.io.*; -import java.net.*; -import java.util.*; +import android.content.res.AssetManager; + +import com.pedrogomez.renderers.AdapteeCollection; + +import org.json.JSONException; +import org.json.JSONObject; + +import java.io.File; +import java.io.FileInputStream; +import java.io.FileNotFoundException; +import java.io.FileWriter; +import java.io.IOException; +import java.io.InputStream; +import java.net.MalformedURLException; +import java.net.URL; +import java.util.Collection; +import java.util.HashSet; +import java.util.Iterator; +import java.util.Set; /** * Created by parmegv on 4/12/14. */ public class ProviderManager implements AdapteeCollection { + private static final String TAG = ProviderManager.class.getName(); private AssetManager assets_manager; private File external_files_dir; private Set default_providers; @@ -49,13 +60,13 @@ public class ProviderManager implements AdapteeCollection { Set providers = new HashSet(); try { for (String file : relative_file_paths) { + + String provider = file.substring(0, file.length() - ".url".length()); InputStream provider_file = assets_manager.open(directory + "/" + file); - String main_url = extractMainUrlFromInputStream(provider_file); - String certificate_pin = extractCertificatePinFromInputStream(provider_file); - if(certificate_pin.isEmpty()) - providers.add(new Provider(new URL(main_url))); - else - providers.add(new Provider(new URL(main_url), certificate_pin)); + String mainUrl = extractMainUrlFromInputStream(provider_file); + String certificate = ConfigHelper.loadInputStreamAsString(assets_manager.open(provider + ".pem")); + String providerDefinition = ConfigHelper.loadInputStreamAsString(assets_manager.open(provider + ".json")); + providers.add(new Provider(new URL(mainUrl), certificate, providerDefinition)); } } catch (IOException e) { e.printStackTrace(); @@ -89,21 +100,11 @@ public class ProviderManager implements AdapteeCollection { String main_url = ""; JSONObject file_contents = inputStreamToJson(input_stream); - if(file_contents != null) + if (file_contents != null) main_url = file_contents.optString(Provider.MAIN_URL); return main_url; } - private String extractCertificatePinFromInputStream(InputStream input_stream) { - String certificate_pin = ""; - - JSONObject file_contents = inputStreamToJson(input_stream); - if(file_contents != null) - certificate_pin = file_contents.optString(Provider.CA_CERT_FINGERPRINT); - - return certificate_pin; - } - private JSONObject inputStreamToJson(InputStream input_stream) { JSONObject json = null; try { diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml index 70f6f4ab..680f92e1 100644 --- a/app/src/main/res/values/strings.xml +++ b/app/src/main/res/values/strings.xml @@ -82,4 +82,9 @@ Failed to establish blocking VPN. Stopped blocking all outgoing internet traffic. Blocking traffic + Update provider details + Update certificate + Stored provider details are corrupted. You can either update Bitmask (recommended) or update the provider details using a commercial CA certificate. + Stored provider certificate is corrupted. You can either update Bitmask (recommended) or update the provider certificate using a commercial CA certificate. + Stored provider certificate is expired. You can either update Bitmask (recommended) or update the provider certificate using a commercial CA certificate. -- cgit v1.2.3 From 67c375afcd7d2e62cdf761f4934860938ae29235 Mon Sep 17 00:00:00 2001 From: cyBerta Date: Wed, 3 Jan 2018 16:00:10 +0100 Subject: fix minor bugs --- app/src/main/java/se/leap/bitmaskclient/StartActivity.java | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'app/src/main') diff --git a/app/src/main/java/se/leap/bitmaskclient/StartActivity.java b/app/src/main/java/se/leap/bitmaskclient/StartActivity.java index dd2be212..2bfe650a 100644 --- a/app/src/main/java/se/leap/bitmaskclient/StartActivity.java +++ b/app/src/main/java/se/leap/bitmaskclient/StartActivity.java @@ -62,7 +62,7 @@ public class StartActivity extends Activity { } // initialize app necessities - ProviderAPICommand.initialize(this); + ProviderAPICommand.initialize(getApplicationContext()); VpnStatus.initLogCache(getApplicationContext().getCacheDir()); User.init(getString(R.string.default_username)); -- cgit v1.2.3 From 81a732702f7b3125ac543f92d8a5ec33cce972fe Mon Sep 17 00:00:00 2001 From: cyBerta Date: Thu, 4 Jan 2018 13:23:58 +0100 Subject: 8773 preseeded providers implementation for insecure flavor --- .../bitmaskclient/BaseConfigurationWizard.java | 16 +++++++++ .../main/java/se/leap/bitmaskclient/Provider.java | 18 ++++++---- .../se/leap/bitmaskclient/ProviderApiBase.java | 39 ++++++++++++++++++++-- .../se/leap/bitmaskclient/ProviderManager.java | 30 +++++++++++------ 4 files changed, 82 insertions(+), 21 deletions(-) (limited to 'app/src/main') diff --git a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java index 1d675499..2c169e3d 100644 --- a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java +++ b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java @@ -216,6 +216,8 @@ public abstract class BaseConfigurationWizard extends Activity String provider_json_string = preferences.getString(Provider.KEY, ""); if (!provider_json_string.isEmpty()) selected_provider.define(new JSONObject(provider_json_string)); + String caCert = preferences.getString(Provider.CA_CERT, ""); + selected_provider.setCACert(caCert); } catch (JSONException e) { e.printStackTrace(); } @@ -301,6 +303,20 @@ public abstract class BaseConfigurationWizard extends Activity preferences.edit().remove(Provider.KEY).remove(Constants.PROVIDER_ALLOW_ANONYMOUS).remove(Constants.PROVIDER_KEY).apply(); } + @Override + public void updateProviderDetails() { + mConfigState.setAction(SETTING_UP_PROVIDER); + Intent provider_API_command = new Intent(this, ProviderAPI.class); + + provider_API_command.setAction(ProviderAPI.UPDATE_PROVIDER_DETAILS); + provider_API_command.putExtra(ProviderAPI.RECEIVER_KEY, providerAPI_result_receiver); + Bundle parameters = new Bundle(); + parameters.putString(Provider.MAIN_URL, selected_provider.getMainUrl().toString()); + provider_API_command.putExtra(ProviderAPI.PARAMETERS, parameters); + + startService(provider_API_command); + } + private void askDashboardToQuitApp() { Intent ask_quit = new Intent(); ask_quit.putExtra(Dashboard.ACTION_QUIT, Dashboard.ACTION_QUIT); diff --git a/app/src/main/java/se/leap/bitmaskclient/Provider.java b/app/src/main/java/se/leap/bitmaskclient/Provider.java index 71a0e149..ae07bc25 100644 --- a/app/src/main/java/se/leap/bitmaskclient/Provider.java +++ b/app/src/main/java/se/leap/bitmaskclient/Provider.java @@ -70,14 +70,18 @@ public final class Provider implements Parcelable { this.mainUrl.setUrl(mainUrl); } - public Provider(URL mainUrl, String caCert, /*String certificatePin,*/ String definition) { + public Provider(URL mainUrl, String caCert, String definition) { this.mainUrl.setUrl(mainUrl); - this.caCert = caCert; - try { - this.definition = new JSONObject(definition); - parseDefinition(this.definition); - } catch (JSONException e) { - e.printStackTrace(); + if (caCert != null) { + this.caCert = caCert; + } + if (definition != null) { + try { + this.definition = new JSONObject(definition); + parseDefinition(this.definition); + } catch (JSONException | NullPointerException e) { + e.printStackTrace(); + } } } diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java index dfc48bee..0013d2c2 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java @@ -665,9 +665,6 @@ public abstract class ProviderApiBase extends IntentService { try { response = okHttpClient.newCall(request).execute(); - if (!response.isSuccessful()){ - return formatErrorMessage(error_json_exception_user_message); - } InputStream inputStream = response.body().byteStream(); Scanner scanner = new Scanner(inputStream).useDelimiter("\\A"); @@ -760,6 +757,42 @@ public abstract class ProviderApiBase extends IntentService { return result; } + protected void checkPersistedProviderUpdates() { + String providerDomain = getProviderDomain(providerDefinition); + if (hasUpdatedProviderDetails(providerDomain)) { + providerCaCert = getPersistedProviderCA(providerDomain); + providerDefinition = getPersistedProviderDefinition(providerDomain); + providerCaCertFingerprint = getPersistedCaCertFingerprint(providerDomain); + providerApiUrl = getApiUrlWithVersion(providerDefinition); + } + } + + protected Bundle validateProviderDetails() { + Bundle result = validateCertificateForProvider(providerCaCert, providerDefinition, lastProviderMainUrl); + + //invalid certificate or no certificate + if (result.containsKey(ERRORS) || (result.containsKey(RESULT_KEY) && !result.getBoolean(RESULT_KEY)) ) { + return result; + } + + //valid certificate: skip download, save loaded provider CA cert and provider definition directly + try { + preferences.edit().putString(Provider.KEY, providerDefinition.toString()). + putBoolean(Constants.PROVIDER_ALLOW_ANONYMOUS, providerDefinition.getJSONObject(Provider.SERVICE).getBoolean(Constants.PROVIDER_ALLOW_ANONYMOUS)). + putBoolean(Constants.PROVIDER_ALLOWED_REGISTERED, providerDefinition.getJSONObject(Provider.SERVICE).getBoolean(Constants.PROVIDER_ALLOWED_REGISTERED)). + putString(Provider.CA_CERT, providerCaCert).commit(); + CA_CERT_DOWNLOADED = true; + PROVIDER_JSON_DOWNLOADED = true; + result.putBoolean(RESULT_KEY, true); + } catch (JSONException e) { + e.printStackTrace(); + result.putBoolean(RESULT_KEY, false); + result = setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + } + + return result; + } + protected Bundle validateCertificateForProvider(String cert_string, JSONObject providerDefinition, String mainUrl) { Bundle result = new Bundle(); result.putBoolean(RESULT_KEY, false); diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java b/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java index cf703631..92d5da9f 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderManager.java @@ -58,19 +58,27 @@ public class ProviderManager implements AdapteeCollection { private Set providersFromAssets(String directory, String[] relative_file_paths) { Set providers = new HashSet(); - try { - for (String file : relative_file_paths) { - String provider = file.substring(0, file.length() - ".url".length()); - InputStream provider_file = assets_manager.open(directory + "/" + file); - String mainUrl = extractMainUrlFromInputStream(provider_file); - String certificate = ConfigHelper.loadInputStreamAsString(assets_manager.open(provider + ".pem")); - String providerDefinition = ConfigHelper.loadInputStreamAsString(assets_manager.open(provider + ".json")); - providers.add(new Provider(new URL(mainUrl), certificate, providerDefinition)); + for (String file : relative_file_paths) { + String mainUrl = null; + String certificate = null; + String providerDefinition = null; + try { + String provider = file.substring(0, file.length() - ".url".length()); + InputStream provider_file = assets_manager.open(directory + "/" + file); + mainUrl = extractMainUrlFromInputStream(provider_file); + certificate = ConfigHelper.loadInputStreamAsString(assets_manager.open(provider + ".pem")); + providerDefinition = ConfigHelper.loadInputStreamAsString(assets_manager.open(provider + ".json")); + } catch (IOException e) { + e.printStackTrace(); + } + try { + providers.add(new Provider(new URL(mainUrl), certificate, providerDefinition)); + } catch (MalformedURLException e) { + e.printStackTrace(); + } } - } catch (IOException e) { - e.printStackTrace(); - } + return providers; } -- cgit v1.2.3 From 0b647ea5e7ff67747080b2ffcebc948da0fbecb5 Mon Sep 17 00:00:00 2001 From: cyBerta Date: Tue, 9 Jan 2018 20:55:10 +0100 Subject: 8773 refactoring ProviderAPI for testability, setting up basic unit test framework --- app/src/main/AndroidManifest.xml | 2 +- .../bitmaskclient/BaseConfigurationWizard.java | 4 +- .../java/se/leap/bitmaskclient/ConfigHelper.java | 60 +- .../leap/bitmaskclient/DownloadFailedDialog.java | 16 +- .../leap/bitmaskclient/OkHttpClientGenerator.java | 166 +++ .../java/se/leap/bitmaskclient/ProviderAPI.java | 124 +++ .../bitmaskclient/ProviderAPIResultReceiver.java | 4 +- .../se/leap/bitmaskclient/ProviderApiBase.java | 1061 -------------------- .../leap/bitmaskclient/ProviderApiConnector.java | 102 ++ .../leap/bitmaskclient/ProviderApiManagerBase.java | 984 ++++++++++++++++++ .../bitmaskclient/userstatus/SessionDialog.java | 2 - 11 files changed, 1430 insertions(+), 1095 deletions(-) create mode 100644 app/src/main/java/se/leap/bitmaskclient/OkHttpClientGenerator.java create mode 100644 app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java delete mode 100644 app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java create mode 100644 app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java create mode 100644 app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java (limited to 'app/src/main') diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml index 4dd11143..c0e2d90c 100644 --- a/app/src/main/AndroidManifest.xml +++ b/app/src/main/AndroidManifest.xml @@ -54,7 +54,7 @@ - + . + */ + +package se.leap.bitmaskclient; + +import android.content.SharedPreferences; +import android.content.res.Resources; +import android.os.Build; +import android.support.annotation.NonNull; + +import org.json.JSONException; +import org.json.JSONObject; + +import java.io.IOException; +import java.net.UnknownHostException; +import java.security.KeyManagementException; +import java.security.KeyStoreException; +import java.security.NoSuchAlgorithmException; +import java.security.NoSuchProviderException; +import java.security.cert.CertificateException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; + +import okhttp3.CipherSuite; +import okhttp3.ConnectionSpec; +import okhttp3.Cookie; +import okhttp3.CookieJar; +import okhttp3.HttpUrl; +import okhttp3.OkHttpClient; +import okhttp3.TlsVersion; + +import static android.text.TextUtils.isEmpty; +import static se.leap.bitmaskclient.ProviderAPI.ERRORS; +import static se.leap.bitmaskclient.R.string.certificate_error; +import static se.leap.bitmaskclient.R.string.error_io_exception_user_message; +import static se.leap.bitmaskclient.R.string.error_no_such_algorithm_exception_user_message; +import static se.leap.bitmaskclient.R.string.keyChainAccessError; +import static se.leap.bitmaskclient.R.string.server_unreachable_message; + +/** + * Created by cyberta on 08.01.18. + */ + +public class OkHttpClientGenerator { + + SharedPreferences preferences; + Resources resources; + + public OkHttpClientGenerator(SharedPreferences preferences, Resources resources) { + this.preferences = preferences; + this.resources = resources; + } + + public OkHttpClient initCommercialCAHttpClient(JSONObject initError) { + return initHttpClient(initError, null); + } + + public OkHttpClient initSelfSignedCAHttpClient(JSONObject initError) { + String certificate = preferences.getString(Provider.CA_CERT, ""); + return initHttpClient(initError, certificate); + } + + public OkHttpClient initSelfSignedCAHttpClient(JSONObject initError, String certificate) { + return initHttpClient(initError, certificate); + } + + + private OkHttpClient initHttpClient(JSONObject initError, String certificate) { + try { + TLSCompatSocketFactory sslCompatFactory; + ConnectionSpec spec = getConnectionSpec(); + OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder(); + + if (!isEmpty(certificate)) { + sslCompatFactory = new TLSCompatSocketFactory(certificate); + } else { + sslCompatFactory = new TLSCompatSocketFactory(); + } + sslCompatFactory.initSSLSocketFactory(clientBuilder); + clientBuilder.cookieJar(getCookieJar()) + .connectionSpecs(Collections.singletonList(spec)); + return clientBuilder.build(); + } catch (IllegalArgumentException e) { + e.printStackTrace(); + addErrorMessageToJson(initError, resources.getString(R.string.certificate_error)); + } catch (IllegalStateException | KeyManagementException | KeyStoreException e) { + e.printStackTrace(); + addErrorMessageToJson(initError, String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage())); + } catch (NoSuchAlgorithmException | NoSuchProviderException e) { + e.printStackTrace(); + addErrorMessageToJson(initError, resources.getString(error_no_such_algorithm_exception_user_message)); + } catch (CertificateException e) { + e.printStackTrace(); + addErrorMessageToJson(initError, resources.getString(certificate_error)); + } catch (UnknownHostException e) { + e.printStackTrace(); + addErrorMessageToJson(initError, resources.getString(server_unreachable_message)); + } catch (IOException e) { + e.printStackTrace(); + addErrorMessageToJson(initError, resources.getString(error_io_exception_user_message)); + } + return null; + } + + + + @NonNull + private ConnectionSpec getConnectionSpec() { + ConnectionSpec.Builder connectionSpecbuilder = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS) + .tlsVersions(TlsVersion.TLS_1_2, TlsVersion.TLS_1_3); + //FIXME: restrict connection further to the following recommended cipher suites for ALL supported API levels + //figure out how to use bcjsse for that purpose + if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) + connectionSpecbuilder.cipherSuites( + CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, + CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, + CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, + CipherSuite.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, + CipherSuite.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, + CipherSuite.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 + ); + return connectionSpecbuilder.build(); + } + + @NonNull + private CookieJar getCookieJar() { + return new CookieJar() { + private final HashMap> cookieStore = new HashMap<>(); + + @Override + public void saveFromResponse(HttpUrl url, List cookies) { + cookieStore.put(url.host(), cookies); + } + + @Override + public List loadForRequest(HttpUrl url) { + List cookies = cookieStore.get(url.host()); + return cookies != null ? cookies : new ArrayList(); + } + }; + } + + private void addErrorMessageToJson(JSONObject jsonObject, String errorMessage) { + try { + jsonObject.put(ERRORS, errorMessage); + } catch (JSONException e) { + e.printStackTrace(); + } + } +} diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java b/app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java new file mode 100644 index 00000000..5a6aabc0 --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderAPI.java @@ -0,0 +1,124 @@ +/** + * Copyright (c) 2017 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 . + */ +package se.leap.bitmaskclient; + +import android.annotation.SuppressLint; +import android.app.IntentService; +import android.content.Intent; +import android.content.SharedPreferences; + +import de.blinkt.openvpn.core.Preferences; + +/** + * Implements HTTP api methods (encapsulated in {{@link ProviderApiManager}}) + * used to manage communications with the provider server. + *

+ * It's an IntentService because it downloads data from the Internet, so it operates in the background. + * + * @author parmegv + * @author MeanderingCode + * @author cyberta + */ + +public class ProviderAPI extends IntentService implements ProviderApiManagerBase.ProviderApiServiceCallback { + + final public static String + TAG = ProviderAPI.class.getSimpleName(), + SET_UP_PROVIDER = "setUpProvider", + UPDATE_PROVIDER_DETAILS = "updateProviderDetails", + DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON", + SIGN_UP = "srpRegister", + LOG_IN = "srpAuth", + LOG_OUT = "logOut", + DOWNLOAD_CERTIFICATE = "downloadUserAuthedCertificate", + PARAMETERS = "parameters", + RESULT_KEY = "result", + RECEIVER_KEY = "receiver", + ERRORS = "errors", + ERRORID = "errorId", + UPDATE_PROGRESSBAR = "update_progressbar", + CURRENT_PROGRESS = "current_progress", + DOWNLOAD_EIP_SERVICE = TAG + ".DOWNLOAD_EIP_SERVICE"; + + final public static int + SUCCESSFUL_LOGIN = 3, + FAILED_LOGIN = 4, + SUCCESSFUL_SIGNUP = 5, + FAILED_SIGNUP = 6, + SUCCESSFUL_LOGOUT = 7, + LOGOUT_FAILED = 8, + CORRECTLY_DOWNLOADED_CERTIFICATE = 9, + INCORRECTLY_DOWNLOADED_CERTIFICATE = 10, + PROVIDER_OK = 11, + PROVIDER_NOK = 12, + CORRECTLY_DOWNLOADED_EIP_SERVICE = 13, + INCORRECTLY_DOWNLOADED_EIP_SERVICE = 14; + + ProviderApiManager providerApiManager; + + + + public ProviderAPI() { + super(TAG); + } + + //TODO: refactor me, please! + public static void stop() { + ProviderApiManager.stop(); + } + + //TODO: refactor me, please! + public static boolean caCertDownloaded() { + return ProviderApiManager.caCertDownloaded(); + } + + //TODO: refactor me, please! + public static String lastProviderMainUrl() { + return ProviderApiManager.lastProviderMainUrl(); + } + + //TODO: refactor me, please! + //used in insecure flavor only + @SuppressLint("unused") + public static boolean lastDangerOn() { + return ProviderApiManager.lastDangerOn(); + } + + + @Override + public void onCreate() { + super.onCreate(); + providerApiManager = initApiManager(); + } + + @Override + public void broadcastProgress(Intent intent) { + sendBroadcast(intent); + } + + @Override + protected void onHandleIntent(Intent command) { + providerApiManager.handleIntent(command); + } + + + private ProviderApiManager initApiManager() { + SharedPreferences preferences = getSharedPreferences(Constants.SHARED_PREFERENCES, MODE_PRIVATE); + OkHttpClientGenerator clientGenerator = new OkHttpClientGenerator(preferences, getResources()); + return new ProviderApiManager(preferences, getResources(), clientGenerator, this); + } +} diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java b/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java index 9b880f89..9b777e5a 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderAPIResultReceiver.java @@ -16,7 +16,9 @@ */ package se.leap.bitmaskclient; -import android.os.*; +import android.os.Bundle; +import android.os.Handler; +import android.os.ResultReceiver; /** * Implements the ResultReceiver needed by Activities using ProviderAPI to receive the results of its operations. diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java deleted file mode 100644 index 0013d2c2..00000000 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiBase.java +++ /dev/null @@ -1,1061 +0,0 @@ -/** - * Copyright (c) 2017 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 . - */ -package se.leap.bitmaskclient; - -import android.app.IntentService; -import android.content.Intent; -import android.content.SharedPreferences; -import android.content.res.Resources; -import android.os.Build; -import android.os.Bundle; -import android.os.ResultReceiver; -import android.support.annotation.NonNull; -import android.util.Base64; -import android.util.Pair; - -import org.json.JSONException; -import org.json.JSONObject; - -import java.io.IOException; -import java.io.InputStream; -import java.math.BigInteger; -import java.net.ConnectException; -import java.net.MalformedURLException; -import java.net.SocketTimeoutException; -import java.net.UnknownHostException; -import java.net.UnknownServiceException; -import java.security.KeyManagementException; -import java.security.KeyStoreException; -import java.security.MessageDigest; -import java.security.NoSuchAlgorithmException; -import java.security.NoSuchProviderException; -import java.security.cert.CertificateEncodingException; -import java.security.cert.CertificateException; -import java.security.cert.CertificateExpiredException; -import java.security.cert.CertificateNotYetValidException; -import java.security.cert.X509Certificate; -import java.security.interfaces.RSAPrivateKey; -import java.util.ArrayList; -import java.util.Collections; -import java.util.HashMap; -import java.util.List; -import java.util.Locale; -import java.util.Scanner; - -import javax.net.ssl.SSLHandshakeException; - -import okhttp3.CipherSuite; -import okhttp3.ConnectionSpec; -import okhttp3.Cookie; -import okhttp3.CookieJar; -import okhttp3.HttpUrl; -import okhttp3.MediaType; -import okhttp3.OkHttpClient; -import okhttp3.Request; -import okhttp3.RequestBody; -import okhttp3.Response; -import okhttp3.TlsVersion; -import se.leap.bitmaskclient.userstatus.SessionDialog; -import se.leap.bitmaskclient.userstatus.User; -import se.leap.bitmaskclient.userstatus.UserStatus; - -import static android.text.TextUtils.isEmpty; -import static se.leap.bitmaskclient.ConfigHelper.base64toHex; -import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CERTIFICATE_PINNING; -import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CORRUPTED_PROVIDER_JSON; -import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_INVALID_CERTIFICATE; -import static se.leap.bitmaskclient.Provider.MAIN_URL; -import static se.leap.bitmaskclient.R.string.certificate_error; -import static se.leap.bitmaskclient.R.string.error_io_exception_user_message; -import static se.leap.bitmaskclient.R.string.error_json_exception_user_message; -import static se.leap.bitmaskclient.R.string.error_no_such_algorithm_exception_user_message; -import static se.leap.bitmaskclient.R.string.keyChainAccessError; -import static se.leap.bitmaskclient.R.string.malformed_url; -import static se.leap.bitmaskclient.R.string.server_unreachable_message; -import static se.leap.bitmaskclient.R.string.service_is_down_error; - -/** - * Implements HTTP api methods used to manage communications with the provider server. - * The implemented methods are commonly used by insecure's and production's flavor of ProviderAPI. - *

- * It's an IntentService because it downloads data from the Internet, so it operates in the background. - * - * @author parmegv - * @author MeanderingCode - * @author cyberta - */ - -public abstract class ProviderApiBase extends IntentService { - - final public static String - TAG = ProviderAPI.class.getSimpleName(), - SET_UP_PROVIDER = "setUpProvider", - UPDATE_PROVIDER_DETAILS = "updateProviderDetails", - DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON", - SIGN_UP = "srpRegister", - LOG_IN = "srpAuth", - LOG_OUT = "logOut", - DOWNLOAD_CERTIFICATE = "downloadUserAuthedCertificate", - PARAMETERS = "parameters", - RESULT_KEY = "result", - RECEIVER_KEY = "receiver", - ERRORS = "errors", - ERRORID = "errorId", - UPDATE_PROGRESSBAR = "update_progressbar", - CURRENT_PROGRESS = "current_progress", - DOWNLOAD_EIP_SERVICE = TAG + ".DOWNLOAD_EIP_SERVICE"; - - final public static int - SUCCESSFUL_LOGIN = 3, - FAILED_LOGIN = 4, - SUCCESSFUL_SIGNUP = 5, - FAILED_SIGNUP = 6, - SUCCESSFUL_LOGOUT = 7, - LOGOUT_FAILED = 8, - CORRECTLY_DOWNLOADED_CERTIFICATE = 9, - INCORRECTLY_DOWNLOADED_CERTIFICATE = 10, - PROVIDER_OK = 11, - PROVIDER_NOK = 12, - CORRECTLY_DOWNLOADED_EIP_SERVICE = 13, - INCORRECTLY_DOWNLOADED_EIP_SERVICE = 14; - - protected static boolean - CA_CERT_DOWNLOADED = false, - PROVIDER_JSON_DOWNLOADED = false, - EIP_SERVICE_JSON_DOWNLOADED = false; - - protected static String lastProviderMainUrl; - protected static boolean go_ahead = true; - protected static SharedPreferences preferences; - protected static String providerApiUrl; - protected static String providerCaCertFingerprint; - protected static String providerCaCert; - protected static JSONObject providerDefinition; - protected Resources resources; - - public static void stop() { - go_ahead = false; - } - - private final MediaType JSON - = MediaType.parse("application/json; charset=utf-8"); - - public ProviderApiBase() { - super(TAG); - } - - @Override - public void onCreate() { - super.onCreate(); - - preferences = getSharedPreferences(Constants.SHARED_PREFERENCES, MODE_PRIVATE); - resources = getResources(); - } - - public static String lastProviderMainUrl() { - return lastProviderMainUrl; - } - - @Override - protected void onHandleIntent(Intent command) { - final ResultReceiver receiver = command.getParcelableExtra(RECEIVER_KEY); - String action = command.getAction(); - Bundle parameters = command.getBundleExtra(PARAMETERS); - - if (providerApiUrl == null && preferences.contains(Provider.KEY)) { - try { - JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); - providerApiUrl = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION); - go_ahead = true; - } catch (JSONException e) { - go_ahead = false; - } - } - if (action.equals(UPDATE_PROVIDER_DETAILS)) { - resetProviderDetails(); - Bundle task = new Bundle(); - task.putString(MAIN_URL, lastProviderMainUrl); - Bundle result = setUpProvider(task); - if (result.getBoolean(RESULT_KEY)) { - receiver.send(PROVIDER_OK, result); - } else { - receiver.send(PROVIDER_NOK, result); - } - } else if (action.equalsIgnoreCase(SET_UP_PROVIDER)) { - Bundle result = setUpProvider(parameters); - if (go_ahead) { - if (result.getBoolean(RESULT_KEY)) { - receiver.send(PROVIDER_OK, result); - } else { - receiver.send(PROVIDER_NOK, result); - } - } - } else if (action.equalsIgnoreCase(SIGN_UP)) { - UserStatus.updateStatus(UserStatus.SessionStatus.SIGNING_UP, resources); - Bundle result = tryToRegister(parameters); - if (result.getBoolean(RESULT_KEY)) { - receiver.send(SUCCESSFUL_SIGNUP, result); - } else { - receiver.send(FAILED_SIGNUP, result); - } - } else if (action.equalsIgnoreCase(LOG_IN)) { - UserStatus.updateStatus(UserStatus.SessionStatus.LOGGING_IN, resources); - Bundle result = tryToAuthenticate(parameters); - if (result.getBoolean(RESULT_KEY)) { - receiver.send(SUCCESSFUL_LOGIN, result); - UserStatus.updateStatus(UserStatus.SessionStatus.LOGGED_IN, resources); - } else { - receiver.send(FAILED_LOGIN, result); - UserStatus.updateStatus(UserStatus.SessionStatus.NOT_LOGGED_IN, resources); - } - } else if (action.equalsIgnoreCase(LOG_OUT)) { - UserStatus.updateStatus(UserStatus.SessionStatus.LOGGING_OUT, resources); - if (logOut()) { - receiver.send(SUCCESSFUL_LOGOUT, Bundle.EMPTY); - UserStatus.updateStatus(UserStatus.SessionStatus.LOGGED_OUT, resources); - } else { - receiver.send(LOGOUT_FAILED, Bundle.EMPTY); - UserStatus.updateStatus(UserStatus.SessionStatus.DIDNT_LOG_OUT, resources); - } - } else if (action.equalsIgnoreCase(DOWNLOAD_CERTIFICATE)) { - if (updateVpnCertificate()) { - receiver.send(CORRECTLY_DOWNLOADED_CERTIFICATE, Bundle.EMPTY); - } else { - receiver.send(INCORRECTLY_DOWNLOADED_CERTIFICATE, Bundle.EMPTY); - } - } else if (action.equalsIgnoreCase(DOWNLOAD_EIP_SERVICE)) { - Bundle result = getAndSetEipServiceJson(); - if (result.getBoolean(RESULT_KEY)) { - receiver.send(CORRECTLY_DOWNLOADED_EIP_SERVICE, result); - } else { - receiver.send(INCORRECTLY_DOWNLOADED_EIP_SERVICE, result); - } - } - } - - protected void resetProviderDetails() { - CA_CERT_DOWNLOADED = PROVIDER_JSON_DOWNLOADED = false; - deleteProviderDetailsFromPreferences(providerDefinition); - providerCaCert = ""; - providerDefinition = new JSONObject(); - } - - protected String formatErrorMessage(final int toastStringId) { - return formatErrorMessage(getResources().getString(toastStringId)); - } - - private String formatErrorMessage(String errorMessage) { - return "{ \"" + ERRORS + "\" : \"" + errorMessage + "\" }"; - } - - private JSONObject getErrorMessageAsJson(final int toastStringId) { - try { - return new JSONObject(formatErrorMessage(toastStringId)); - } catch (JSONException e) { - e.printStackTrace(); - return new JSONObject(); - } - } - - protected void addErrorMessageToJson(JSONObject jsonObject, String errorMessage) { - try { - jsonObject.put(ERRORS, errorMessage); - } catch (JSONException e) { - e.printStackTrace(); - } - } - - protected void addErrorMessageToJson(JSONObject jsonObject, String errorMessage, String errorId) { - try { - jsonObject.put(ERRORS, errorMessage); - jsonObject.put(ERRORID, errorId); - } catch (JSONException e) { - e.printStackTrace(); - } - } - - private OkHttpClient initHttpClient(JSONObject initError, String certificate) { - try { - TLSCompatSocketFactory sslCompatFactory; - ConnectionSpec spec = getConnectionSpec(); - OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder(); - - if (!isEmpty(certificate)) { - sslCompatFactory = new TLSCompatSocketFactory(certificate); - } else { - sslCompatFactory = new TLSCompatSocketFactory(); - } - sslCompatFactory.initSSLSocketFactory(clientBuilder); - clientBuilder.cookieJar(getCookieJar()) - .connectionSpecs(Collections.singletonList(spec)); - return clientBuilder.build(); - } catch (IllegalArgumentException e) { - e.printStackTrace(); - addErrorMessageToJson(initError, resources.getString(R.string.certificate_error)); - } catch (IllegalStateException | KeyManagementException | KeyStoreException e) { - e.printStackTrace(); - addErrorMessageToJson(initError, String.format(resources.getString(keyChainAccessError), e.getLocalizedMessage())); - } catch (NoSuchAlgorithmException | NoSuchProviderException e) { - e.printStackTrace(); - addErrorMessageToJson(initError, resources.getString(error_no_such_algorithm_exception_user_message)); - } catch (CertificateException e) { - e.printStackTrace(); - addErrorMessageToJson(initError, resources.getString(certificate_error)); - } catch (UnknownHostException e) { - e.printStackTrace(); - addErrorMessageToJson(initError, resources.getString(server_unreachable_message)); - } catch (IOException e) { - e.printStackTrace(); - addErrorMessageToJson(initError, resources.getString(error_io_exception_user_message)); - } - return null; - } - - protected OkHttpClient initCommercialCAHttpClient(JSONObject initError) { - return initHttpClient(initError, null); - } - - protected OkHttpClient initSelfSignedCAHttpClient(JSONObject initError) { - String certificate = preferences.getString(Provider.CA_CERT, ""); - return initHttpClient(initError, certificate); - } - - protected OkHttpClient initSelfSignedCAHttpClient(JSONObject initError, String certificate) { - return initHttpClient(initError, certificate); - } - - @NonNull - private ConnectionSpec getConnectionSpec() { - ConnectionSpec.Builder connectionSpecbuilder = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS) - .tlsVersions(TlsVersion.TLS_1_2, TlsVersion.TLS_1_3); - //FIXME: restrict connection further to the following recommended cipher suites for ALL supported API levels - //figure out how to use bcjsse for that purpose - if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1) - connectionSpecbuilder.cipherSuites( - CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, - CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, - CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, - CipherSuite.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, - CipherSuite.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, - CipherSuite.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 - ); - return connectionSpecbuilder.build(); - } - - @NonNull - private CookieJar getCookieJar() { - return new CookieJar() { - private final HashMap> cookieStore = new HashMap<>(); - - @Override - public void saveFromResponse(HttpUrl url, List cookies) { - cookieStore.put(url.host(), cookies); - } - - @Override - public List loadForRequest(HttpUrl url) { - List cookies = cookieStore.get(url.host()); - return cookies != null ? cookies : new ArrayList(); - } - }; - } - - - private Bundle tryToRegister(Bundle task) { - Bundle result = new Bundle(); - int progress = 0; - - String username = User.userName(); - String password = task.getString(SessionDialog.PASSWORD); - - if (validUserLoginData(username, password)) { - result = register(username, password); - broadcastProgress(progress++); - } else { - if (!wellFormedPassword(password)) { - result.putBoolean(RESULT_KEY, false); - result.putString(SessionDialog.USERNAME, username); - result.putBoolean(SessionDialog.ERRORS.PASSWORD_INVALID_LENGTH.toString(), true); - } - if (!validUsername(username)) { - result.putBoolean(RESULT_KEY, false); - result.putBoolean(SessionDialog.ERRORS.USERNAME_MISSING.toString(), true); - } - } - - return result; - } - - private Bundle register(String username, String password) { - JSONObject stepResult = null; - OkHttpClient okHttpClient = initSelfSignedCAHttpClient(stepResult); - if (okHttpClient == null) { - return authFailedNotification(stepResult, username); - } - - LeapSRPSession client = new LeapSRPSession(username, password); - byte[] salt = client.calculateNewSalt(); - - BigInteger password_verifier = client.calculateV(username, password, salt); - - JSONObject api_result = sendNewUserDataToSRPServer(providerApiUrl, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16), okHttpClient); - - Bundle result = new Bundle(); - if (api_result.has(ERRORS)) - result = authFailedNotification(api_result, username); - else { - result.putString(SessionDialog.USERNAME, username); - result.putString(SessionDialog.PASSWORD, password); - result.putBoolean(RESULT_KEY, true); - } - - return result; - } - - /** - * Starts the authentication process using SRP protocol. - * - * @param task containing: username, password and api url. - * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if authentication was successful. - */ - private Bundle tryToAuthenticate(Bundle task) { - Bundle result = new Bundle(); - int progress = 0; - - String username = User.userName(); - String password = task.getString(SessionDialog.PASSWORD); - if (validUserLoginData(username, password)) { - result = authenticate(username, password); - broadcastProgress(progress++); - } else { - if (!wellFormedPassword(password)) { - result.putBoolean(RESULT_KEY, false); - result.putString(SessionDialog.USERNAME, username); - result.putBoolean(SessionDialog.ERRORS.PASSWORD_INVALID_LENGTH.toString(), true); - } - if (!validUsername(username)) { - result.putBoolean(RESULT_KEY, false); - result.putBoolean(SessionDialog.ERRORS.USERNAME_MISSING.toString(), true); - } - } - - return result; - } - - private Bundle authenticate(String username, String password) { - Bundle result = new Bundle(); - JSONObject stepResult = new JSONObject(); - OkHttpClient okHttpClient = initSelfSignedCAHttpClient(stepResult); - if (okHttpClient == null) { - return authFailedNotification(stepResult, username); - } - - LeapSRPSession client = new LeapSRPSession(username, password); - byte[] A = client.exponential(); - - JSONObject step_result = sendAToSRPServer(providerApiUrl, username, new BigInteger(1, A).toString(16), okHttpClient); - try { - String salt = step_result.getString(LeapSRPSession.SALT); - byte[] Bbytes = new BigInteger(step_result.getString("B"), 16).toByteArray(); - byte[] M1 = client.response(new BigInteger(salt, 16).toByteArray(), Bbytes); - if (M1 != null) { - step_result = sendM1ToSRPServer(providerApiUrl, username, M1, okHttpClient); - setTokenIfAvailable(step_result); - byte[] M2 = new BigInteger(step_result.getString(LeapSRPSession.M2), 16).toByteArray(); - if (client.verify(M2)) { - result.putBoolean(RESULT_KEY, true); - } else { - authFailedNotification(step_result, username); - } - } else { - result.putBoolean(RESULT_KEY, false); - result.putString(SessionDialog.USERNAME, username); - result.putString(resources.getString(R.string.user_message), resources.getString(R.string.error_srp_math_error_user_message)); - } - } catch (JSONException e) { - result = authFailedNotification(step_result, username); - e.printStackTrace(); - } - - return result; - } - - private boolean setTokenIfAvailable(JSONObject authentication_step_result) { - try { - LeapSRPSession.setToken(authentication_step_result.getString(LeapSRPSession.TOKEN)); - } catch (JSONException e) { // - return false; - } - return true; - } - - private Bundle authFailedNotification(JSONObject result, String username) { - Bundle userNotificationBundle = new Bundle(); - Object baseErrorMessage = result.opt(ERRORS); - if (baseErrorMessage != null) { - if (baseErrorMessage instanceof JSONObject) { - try { - JSONObject errorMessage = result.getJSONObject(ERRORS); - String errorType = errorMessage.keys().next().toString(); - String message = errorMessage.get(errorType).toString(); - userNotificationBundle.putString(resources.getString(R.string.user_message), message); - } catch (JSONException e) { - e.printStackTrace(); - } - } else if (baseErrorMessage instanceof String) { - try { - String errorMessage = result.getString(ERRORS); - userNotificationBundle.putString(resources.getString(R.string.user_message), errorMessage); - } catch (JSONException e) { - e.printStackTrace(); - } - } - } - - if (!username.isEmpty()) - userNotificationBundle.putString(SessionDialog.USERNAME, username); - userNotificationBundle.putBoolean(RESULT_KEY, false); - - return userNotificationBundle; - } - - /** - * Sets up an intent with the progress value passed as a parameter - * and sends it as a broadcast. - * - * @param progress - */ - protected void broadcastProgress(int progress) { - Intent intentUpdate = new Intent(); - intentUpdate.setAction(UPDATE_PROGRESSBAR); - intentUpdate.addCategory(Intent.CATEGORY_DEFAULT); - intentUpdate.putExtra(CURRENT_PROGRESS, progress); - sendBroadcast(intentUpdate); - } - - /** - * Validates parameters entered by the user to log in - * - * @param username - * @param password - * @return true if both parameters are present and the entered password length is greater or equal to eight (8). - */ - private boolean validUserLoginData(String username, String password) { - return validUsername(username) && wellFormedPassword(password); - } - - private boolean validUsername(String username) { - return username != null && !username.isEmpty(); - } - - /** - * Validates a password - * - * @param password - * @return true if the entered password length is greater or equal to eight (8). - */ - private boolean wellFormedPassword(String password) { - return password != null && password.length() >= 8; - } - - /** - * Sends an HTTP POST request to the authentication server with the SRP Parameter A. - * - * @param server_url - * @param username - * @param clientA First SRP parameter sent - * @param okHttpClient - * @return response from authentication server - */ - private JSONObject sendAToSRPServer(String server_url, String username, String clientA, OkHttpClient okHttpClient) { - SrpCredentials srpCredentials = new SrpCredentials(username, clientA); - return sendToServer(server_url + "/sessions.json", "POST", srpCredentials.toString(), okHttpClient); - } - - /** - * Sends an HTTP PUT request to the authentication server with the SRP Parameter M1 (or simply M). - * - * @param server_url - * @param username - * @param m1 Second SRP parameter sent - * @param okHttpClient - * @return response from authentication server - */ - private JSONObject sendM1ToSRPServer(String server_url, String username, byte[] m1, OkHttpClient okHttpClient) { - String m1json = "{\"client_auth\":\"" + new BigInteger(1, ConfigHelper.trim(m1)).toString(16)+ "\"}"; - return sendToServer(server_url + "/sessions/" + username + ".json", "PUT", m1json, okHttpClient); - } - - /** - * Sends an HTTP POST request to the api server to register a new user. - * - * @param server_url - * @param username - * @param salt - * @param password_verifier - * @param okHttpClient - * @return response from authentication server - */ - private JSONObject sendNewUserDataToSRPServer(String server_url, String username, String salt, String password_verifier, OkHttpClient okHttpClient) { - return sendToServer(server_url + "/users.json", "POST", new SrpRegistrationData(username, salt, password_verifier).toString(), okHttpClient); - } - - /** - * Executes an HTTP request expecting a JSON response. - * - * @param url - * @param request_method - * @return response from authentication server - */ - private JSONObject sendToServer(String url, String request_method, String jsonString, OkHttpClient okHttpClient) { - return requestJsonFromServer(url, request_method, jsonString, null, okHttpClient); - } - - protected String sendGetStringToServer(String url, List> headerArgs, OkHttpClient okHttpClient) { - return requestStringFromServer(url, "GET", null, headerArgs, okHttpClient); - } - - - - private JSONObject requestJsonFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { - JSONObject responseJson; - String plain_response = requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); - - try { - responseJson = new JSONObject(plain_response); - } catch (JSONException e) { - e.printStackTrace(); - responseJson = getErrorMessageAsJson(error_json_exception_user_message); - } - return responseJson; - - } - - private String requestStringFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { - Response response; - String plainResponseBody = null; - - RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null; - Request.Builder requestBuilder = new Request.Builder() - .url(url) - .method(request_method, jsonBody); - if (headerArgs != null) { - for (Pair keyValPair : headerArgs) { - requestBuilder.addHeader(keyValPair.first, keyValPair.second); - } - } - //TODO: move to getHeaderArgs()? - String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry(); - requestBuilder.addHeader("Accept-Language", locale); - Request request = requestBuilder.build(); - - try { - response = okHttpClient.newCall(request).execute(); - - InputStream inputStream = response.body().byteStream(); - Scanner scanner = new Scanner(inputStream).useDelimiter("\\A"); - if (scanner.hasNext()) { - plainResponseBody = scanner.next(); - } - - } catch (NullPointerException npe) { - plainResponseBody = formatErrorMessage(error_json_exception_user_message); - } catch (UnknownHostException | SocketTimeoutException e) { - plainResponseBody = formatErrorMessage(server_unreachable_message); - } catch (MalformedURLException e) { - plainResponseBody = formatErrorMessage(malformed_url); - } catch (SSLHandshakeException e) { - plainResponseBody = formatErrorMessage(certificate_error); - } catch (ConnectException e) { - plainResponseBody = formatErrorMessage(service_is_down_error); - } catch (IllegalArgumentException e) { - plainResponseBody = formatErrorMessage(error_no_such_algorithm_exception_user_message); - } catch (UnknownServiceException e) { - //unable to find acceptable protocols - tlsv1.2 not enabled? - plainResponseBody = formatErrorMessage(error_no_such_algorithm_exception_user_message); - } catch (IOException e) { - plainResponseBody = formatErrorMessage(error_io_exception_user_message); - } - - return plainResponseBody; - } - - /** - * Downloads a provider.json from a given URL, adding a new provider using the given name. - * - * @param task containing a boolean meaning if the provider is custom or not, another boolean meaning if the user completely trusts this provider, the provider name and its provider.json url. - * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if the update was successful. - */ - protected abstract Bundle setUpProvider(Bundle task); - - /** - * Downloads the eip-service.json from a given URL, and saves eip service capabilities including the offered gateways - * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if the download was successful. - */ - protected abstract Bundle getAndSetEipServiceJson(); - - /** - * Downloads a new OpenVPN certificate, attaching authenticated cookie for authenticated certificate. - * - * @return true if certificate was downloaded correctly, false if provider.json is not present in SharedPreferences, or if the certificate url could not be parsed as a URI, or if there was an SSL error. - */ - protected abstract boolean updateVpnCertificate(); - - - protected static boolean caCertDownloaded() { - return CA_CERT_DOWNLOADED; - } - - protected boolean isValidJson(String jsonString) { - try { - new JSONObject(jsonString); - return true; - } catch(JSONException e) { - return false; - } catch(NullPointerException e) { - e.printStackTrace(); - return false; - } - } - - protected boolean validCertificate(String cert_string) { - boolean result = false; - if (!ConfigHelper.checkErroneousDownload(cert_string)) { - X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); - try { - if (certificate != null) { - JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); - String fingerprint = provider_json.getString(Provider.CA_CERT_FINGERPRINT); - String encoding = fingerprint.split(":")[0]; - String expected_fingerprint = fingerprint.split(":")[1]; - String real_fingerprint = base64toHex(Base64.encodeToString( - MessageDigest.getInstance(encoding).digest(certificate.getEncoded()), - Base64.DEFAULT)); - - result = real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim()); - } else - result = false; - } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException e) { - result = false; - } - } - - return result; - } - - protected void checkPersistedProviderUpdates() { - String providerDomain = getProviderDomain(providerDefinition); - if (hasUpdatedProviderDetails(providerDomain)) { - providerCaCert = getPersistedProviderCA(providerDomain); - providerDefinition = getPersistedProviderDefinition(providerDomain); - providerCaCertFingerprint = getPersistedCaCertFingerprint(providerDomain); - providerApiUrl = getApiUrlWithVersion(providerDefinition); - } - } - - protected Bundle validateProviderDetails() { - Bundle result = validateCertificateForProvider(providerCaCert, providerDefinition, lastProviderMainUrl); - - //invalid certificate or no certificate - if (result.containsKey(ERRORS) || (result.containsKey(RESULT_KEY) && !result.getBoolean(RESULT_KEY)) ) { - return result; - } - - //valid certificate: skip download, save loaded provider CA cert and provider definition directly - try { - preferences.edit().putString(Provider.KEY, providerDefinition.toString()). - putBoolean(Constants.PROVIDER_ALLOW_ANONYMOUS, providerDefinition.getJSONObject(Provider.SERVICE).getBoolean(Constants.PROVIDER_ALLOW_ANONYMOUS)). - putBoolean(Constants.PROVIDER_ALLOWED_REGISTERED, providerDefinition.getJSONObject(Provider.SERVICE).getBoolean(Constants.PROVIDER_ALLOWED_REGISTERED)). - putString(Provider.CA_CERT, providerCaCert).commit(); - CA_CERT_DOWNLOADED = true; - PROVIDER_JSON_DOWNLOADED = true; - result.putBoolean(RESULT_KEY, true); - } catch (JSONException e) { - e.printStackTrace(); - result.putBoolean(RESULT_KEY, false); - result = setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); - } - - return result; - } - - protected Bundle validateCertificateForProvider(String cert_string, JSONObject providerDefinition, String mainUrl) { - Bundle result = new Bundle(); - result.putBoolean(RESULT_KEY, false); - - if (ConfigHelper.checkErroneousDownload(cert_string)) { - return result; - } - - X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); - if (certificate == null) { - return setErrorResult(result, getString(R.string.warning_corrupted_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); - } - try { - certificate.checkValidity(); - String fingerprint = getCaCertFingerprint(providerDefinition); - String encoding = fingerprint.split(":")[0]; - String expected_fingerprint = fingerprint.split(":")[1]; - String real_fingerprint = base64toHex(Base64.encodeToString( - MessageDigest.getInstance(encoding).digest(certificate.getEncoded()), - Base64.DEFAULT)); - if (!real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim())) { - return setErrorResult(result, getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString()); - } - - if (!hasApiUrlExpectedDomain(providerDefinition, mainUrl)){ - return setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); - } - - if (!canConnect(cert_string, providerDefinition, result)) { - return result; - } - } catch (NoSuchAlgorithmException e ) { - return setErrorResult(result, resources.getString(error_no_such_algorithm_exception_user_message), null); - } catch (ArrayIndexOutOfBoundsException e) { - return setErrorResult(result, getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); - } catch (CertificateEncodingException | CertificateNotYetValidException | CertificateExpiredException e) { - return setErrorResult(result, getString(R.string.warning_expired_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); - } - - result.putBoolean(RESULT_KEY, true); - return result; - } - - protected Bundle setErrorResult(Bundle result, String errorMessage, String errorId) { - JSONObject errorJson = new JSONObject(); - if (errorId != null) { - addErrorMessageToJson(errorJson, errorMessage, errorId); - } else { - addErrorMessageToJson(errorJson, errorMessage); - } - result.putString(ERRORS, errorJson.toString()); - return result; - } - - /** - * This method aims to prevent attacks where the provider.json file got manipulated by a third party. - * The main url is visible to the provider when setting up a new provider. - * The user is responsible to check that this is the provider main url he intends to connect to. - * - * @param providerDefinition - * @param mainUrlString - * @return - */ - private boolean hasApiUrlExpectedDomain(JSONObject providerDefinition, String mainUrlString) { - // fix against "api_uri": "https://calyx.net.malicious.url.net:4430", - String apiUrlString = getApiUrl(providerDefinition); - String providerDomain = getProviderDomain(providerDefinition); - if (mainUrlString.contains(providerDomain) && apiUrlString.contains(providerDomain + ":")) { - return true; - } - return false; - } - - private boolean canConnect(String caCert, JSONObject providerDefinition, Bundle result) { - JSONObject errorJson = new JSONObject(); - String baseUrl = getApiUrl(providerDefinition); - - OkHttpClient okHttpClient = initSelfSignedCAHttpClient(errorJson, caCert); - if (okHttpClient == null) { - result.putString(ERRORS, errorJson.toString()); - return false; - } - - List> headerArgs = getAuthorizationHeader(); - String plain_response = requestStringFromServer(baseUrl, "GET", null, headerArgs, okHttpClient); - - try { - if (new JSONObject(plain_response).has(ERRORS)) { - result.putString(ERRORS, plain_response); - return false; - } - } catch (JSONException e) { - //eat me - } - - return true; - } - - protected String getCaCertFingerprint(JSONObject providerDefinition) { - try { - return providerDefinition.getString(Provider.CA_CERT_FINGERPRINT); - } catch (JSONException e) { - e.printStackTrace(); - } - return ""; - } - - protected String getApiUrl(JSONObject providerDefinition) { - try { - return providerDefinition.getString(Provider.API_URL); - } catch (JSONException e) { - e.printStackTrace(); - } - return ""; - } - - protected String getApiUrlWithVersion(JSONObject providerDefinition) { - try { - return providerDefinition.getString(Provider.API_URL) + "/" + providerDefinition.getString(Provider.API_VERSION); - } catch (JSONException e) { - e.printStackTrace(); - } - return ""; - } - - protected void deleteProviderDetailsFromPreferences(JSONObject providerDefinition) { - String providerDomain = getProviderDomain(providerDefinition); - - if (preferences.contains(Provider.KEY + "." + providerDomain)) { - preferences.edit().remove(Provider.KEY + "." + providerDomain).apply(); - } - if (preferences.contains(Provider.CA_CERT + "." + providerDomain)) { - preferences.edit().remove(Provider.CA_CERT + "." + providerDomain).apply(); - } - if (preferences.contains(Provider.CA_CERT_FINGERPRINT + "." + providerDomain)) { - preferences.edit().remove(Provider.CA_CERT_FINGERPRINT + "." + providerDomain).apply(); - } - } - - protected String getPersistedCaCertFingerprint(String providerDomain) { - try { - return getPersistedProviderDefinition(providerDomain).getString(Provider.CA_CERT_FINGERPRINT); - } catch (JSONException e) { - e.printStackTrace(); - } - return ""; - } - - protected JSONObject getPersistedProviderDefinition(String providerDomain) { - try { - return new JSONObject(preferences.getString(Provider.KEY + "." + providerDomain, "")); - } catch (JSONException e) { - e.printStackTrace(); - return new JSONObject(); - } - } - - protected String getPersistedProviderCA(String providerDomain) { - return preferences.getString(Provider.CA_CERT + "." + providerDomain, ""); - } - - protected String getProviderDomain(JSONObject providerDefinition) { - try { - return providerDefinition.getString(Provider.DOMAIN); - } catch (JSONException e) { - e.printStackTrace(); - } - - return ""; - } - - protected boolean hasUpdatedProviderDetails(String providerDomain) { - return preferences.contains(Provider.KEY + "." + providerDomain) && preferences.contains(Provider.CA_CERT + "." + providerDomain); - } - - /** - * Interprets the error message as a JSON object and extract the "errors" keyword pair. - * If the error message is not a JSON object, then it is returned untouched. - * - * @param string_json_error_message - * @return final error message - */ - protected String pickErrorMessage(String string_json_error_message) { - String error_message = ""; - try { - JSONObject json_error_message = new JSONObject(string_json_error_message); - error_message = json_error_message.getString(ERRORS); - } catch (JSONException e) { - // TODO Auto-generated catch block - error_message = string_json_error_message; - } - - return error_message; - } - - @NonNull - protected List> getAuthorizationHeader() { - List> headerArgs = new ArrayList<>(); - if (!LeapSRPSession.getToken().isEmpty()) { - Pair authorizationHeaderPair = new Pair<>(LeapSRPSession.AUTHORIZATION_HEADER, "Token token=" + LeapSRPSession.getToken()); - headerArgs.add(authorizationHeaderPair); - } - return headerArgs; - } - - private boolean logOut() { - OkHttpClient okHttpClient = initSelfSignedCAHttpClient(new JSONObject()); - if (okHttpClient == null) { - return false; - } - - String deleteUrl = providerApiUrl + "/logout"; - int progress = 0; - - Request.Builder requestBuilder = new Request.Builder() - .url(deleteUrl) - .delete(); - Request request = requestBuilder.build(); - - try { - Response response = okHttpClient.newCall(request).execute(); - // v---- was already not authorized - if (response.isSuccessful() || response.code() == 401) { - broadcastProgress(progress++); - LeapSRPSession.setToken(""); - } - - } catch (IOException e) { - return false; - } - return true; - } - - //FIXME: don't save private keys in shared preferences! use the keystore - protected boolean loadCertificate(String cert_string) { - if (cert_string == null) { - return false; - } - - try { - // 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]; - } - } - - RSAPrivateKey key = ConfigHelper.parseRsaKeyFromString(keyString); - keyString = Base64.encodeToString(key.getEncoded(), Base64.DEFAULT); - preferences.edit().putString(Constants.PROVIDER_PRIVATE_KEY, "-----BEGIN RSA PRIVATE KEY-----\n" + keyString + "-----END RSA PRIVATE KEY-----").commit(); - - X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(certificateString); - certificateString = Base64.encodeToString(certificate.getEncoded(), Base64.DEFAULT); - preferences.edit().putString(Constants.PROVIDER_VPN_CERTIFICATE, "-----BEGIN CERTIFICATE-----\n" + certificateString + "-----END CERTIFICATE-----").commit(); - return true; - } catch (CertificateException e) { - // TODO Auto-generated catch block - e.printStackTrace(); - return false; - } - } -} diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java new file mode 100644 index 00000000..9aad14d5 --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java @@ -0,0 +1,102 @@ +/** + * Copyright (c) 2018 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 . + */ + +package se.leap.bitmaskclient; + +import android.support.annotation.NonNull; +import android.util.Pair; + +import java.io.IOException; +import java.io.InputStream; +import java.util.List; +import java.util.Locale; +import java.util.Scanner; + +import okhttp3.MediaType; +import okhttp3.OkHttpClient; +import okhttp3.Request; +import okhttp3.RequestBody; +import okhttp3.Response; + +/** + * Created by cyberta on 08.01.18. + */ + +public class ProviderApiConnector { + + private static final MediaType JSON + = MediaType.parse("application/json; charset=utf-8"); + + + public static boolean delete(OkHttpClient okHttpClient, String deleteUrl) { + try { + Request.Builder requestBuilder = new Request.Builder() + .url(deleteUrl) + .delete(); + Request request = requestBuilder.build(); + + Response response = okHttpClient.newCall(request).execute(); + if (response.isSuccessful() || response.code() == 401) { + return true; + } + } catch (IOException | RuntimeException e) { + return false; + } + + return false; + } + + public static boolean canConnect(@NonNull OkHttpClient okHttpClient, String url) { + try { + Request.Builder requestBuilder = new Request.Builder() + .url(url) + .method("GET", null); + Request request = requestBuilder.build(); + + Response response = okHttpClient.newCall(request).execute(); + return response.isSuccessful(); + } catch (RuntimeException | IOException e) { + return false; + } + + } + + public static String requestStringFromServer(@NonNull String url, @NonNull String request_method, String jsonString, @NonNull List> headerArgs, @NonNull OkHttpClient okHttpClient) throws RuntimeException, IOException { + + RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null; + Request.Builder requestBuilder = new Request.Builder() + .url(url) + .method(request_method, jsonBody); + if (headerArgs != null) { + for (Pair keyValPair : headerArgs) { + requestBuilder.addHeader(keyValPair.first, keyValPair.second); + } + } + //TODO: move to getHeaderArgs()? + String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry(); + requestBuilder.addHeader("Accept-Language", locale); + Request request = requestBuilder.build(); + + Response response = okHttpClient.newCall(request).execute(); + InputStream inputStream = response.body().byteStream(); + Scanner scanner = new Scanner(inputStream).useDelimiter("\\A"); + if (scanner.hasNext()) { + return scanner.next(); + } + return null; + } +} diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java new file mode 100644 index 00000000..396d642b --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java @@ -0,0 +1,984 @@ +/** + * Copyright (c) 2018 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 . + */ + +package se.leap.bitmaskclient; + +import android.content.Intent; +import android.content.SharedPreferences; +import android.content.res.Resources; +import android.os.Bundle; +import android.os.ResultReceiver; +import android.support.annotation.NonNull; +import android.util.Base64; +import android.util.Pair; + +import org.json.JSONException; +import org.json.JSONObject; + +import java.io.IOException; +import java.io.InputStream; +import java.math.BigInteger; +import java.net.ConnectException; +import java.net.MalformedURLException; +import java.net.SocketTimeoutException; +import java.net.UnknownHostException; +import java.net.UnknownServiceException; +import java.security.NoSuchAlgorithmException; +import java.security.cert.CertificateEncodingException; +import java.security.cert.CertificateException; +import java.security.cert.CertificateExpiredException; +import java.security.cert.CertificateNotYetValidException; +import java.security.cert.X509Certificate; +import java.security.interfaces.RSAPrivateKey; +import java.util.ArrayList; +import java.util.List; +import java.util.Locale; +import java.util.Scanner; + +import javax.net.ssl.SSLHandshakeException; + +import okhttp3.MediaType; +import okhttp3.OkHttpClient; +import okhttp3.Request; +import okhttp3.RequestBody; +import okhttp3.Response; +import se.leap.bitmaskclient.userstatus.SessionDialog; +import se.leap.bitmaskclient.userstatus.User; +import se.leap.bitmaskclient.userstatus.UserStatus; + +import static se.leap.bitmaskclient.ConfigHelper.getFingerprintFromCertificate; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CERTIFICATE_PINNING; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_CORRUPTED_PROVIDER_JSON; +import static se.leap.bitmaskclient.DownloadFailedDialog.DOWNLOAD_ERRORS.ERROR_INVALID_CERTIFICATE; +import static se.leap.bitmaskclient.Provider.MAIN_URL; +import static se.leap.bitmaskclient.ProviderAPI.CORRECTLY_DOWNLOADED_CERTIFICATE; +import static se.leap.bitmaskclient.ProviderAPI.CORRECTLY_DOWNLOADED_EIP_SERVICE; +import static se.leap.bitmaskclient.ProviderAPI.CURRENT_PROGRESS; +import static se.leap.bitmaskclient.ProviderAPI.DOWNLOAD_CERTIFICATE; +import static se.leap.bitmaskclient.ProviderAPI.DOWNLOAD_EIP_SERVICE; +import static se.leap.bitmaskclient.ProviderAPI.ERRORID; +import static se.leap.bitmaskclient.ProviderAPI.ERRORS; +import static se.leap.bitmaskclient.ProviderAPI.FAILED_LOGIN; +import static se.leap.bitmaskclient.ProviderAPI.FAILED_SIGNUP; +import static se.leap.bitmaskclient.ProviderAPI.INCORRECTLY_DOWNLOADED_CERTIFICATE; +import static se.leap.bitmaskclient.ProviderAPI.INCORRECTLY_DOWNLOADED_EIP_SERVICE; +import static se.leap.bitmaskclient.ProviderAPI.LOGOUT_FAILED; +import static se.leap.bitmaskclient.ProviderAPI.LOG_IN; +import static se.leap.bitmaskclient.ProviderAPI.LOG_OUT; +import static se.leap.bitmaskclient.ProviderAPI.PARAMETERS; +import static se.leap.bitmaskclient.ProviderAPI.PROVIDER_NOK; +import static se.leap.bitmaskclient.ProviderAPI.PROVIDER_OK; +import static se.leap.bitmaskclient.ProviderAPI.RECEIVER_KEY; +import static se.leap.bitmaskclient.ProviderAPI.RESULT_KEY; +import static se.leap.bitmaskclient.ProviderAPI.SET_UP_PROVIDER; +import static se.leap.bitmaskclient.ProviderAPI.SIGN_UP; +import static se.leap.bitmaskclient.ProviderAPI.SUCCESSFUL_LOGIN; +import static se.leap.bitmaskclient.ProviderAPI.SUCCESSFUL_LOGOUT; +import static se.leap.bitmaskclient.ProviderAPI.SUCCESSFUL_SIGNUP; +import static se.leap.bitmaskclient.ProviderAPI.UPDATE_PROGRESSBAR; +import static se.leap.bitmaskclient.ProviderAPI.UPDATE_PROVIDER_DETAILS; +import static se.leap.bitmaskclient.R.string.certificate_error; +import static se.leap.bitmaskclient.R.string.error_io_exception_user_message; +import static se.leap.bitmaskclient.R.string.error_json_exception_user_message; +import static se.leap.bitmaskclient.R.string.error_no_such_algorithm_exception_user_message; +import static se.leap.bitmaskclient.R.string.malformed_url; +import static se.leap.bitmaskclient.R.string.retry; +import static se.leap.bitmaskclient.R.string.server_unreachable_message; +import static se.leap.bitmaskclient.R.string.service_is_down_error; + +/** + * Implements the logic of the http api calls. The methods of this class needs to be called from + * a background thread. + */ + +public abstract class ProviderApiManagerBase { + + public interface ProviderApiServiceCallback { + void broadcastProgress(Intent intent); + } + + private ProviderApiServiceCallback serviceCallback; + + protected static volatile boolean + CA_CERT_DOWNLOADED = false, + PROVIDER_JSON_DOWNLOADED = false, + EIP_SERVICE_JSON_DOWNLOADED = false; + + protected static String lastProviderMainUrl; + protected static boolean go_ahead = true; + protected static SharedPreferences preferences; + protected static String providerApiUrl; + protected static String providerCaCertFingerprint; + protected static String providerCaCert; + protected static JSONObject providerDefinition; + protected Resources resources; + protected OkHttpClientGenerator clientGenerator; + + public static void stop() { + go_ahead = false; + } + + public static String lastProviderMainUrl() { + return lastProviderMainUrl; + } + + + private final MediaType JSON + = MediaType.parse("application/json; charset=utf-8"); + + public ProviderApiManagerBase(SharedPreferences preferences, Resources resources, OkHttpClientGenerator clientGenerator, ProviderApiServiceCallback callback) { + this.preferences = preferences; + this.resources = resources; + this.serviceCallback = callback; + this.clientGenerator = clientGenerator; + } + + public void handleIntent(Intent command) { + final ResultReceiver receiver = command.getParcelableExtra(RECEIVER_KEY); + String action = command.getAction(); + Bundle parameters = command.getBundleExtra(PARAMETERS); + + if (providerApiUrl == null && preferences.contains(Provider.KEY)) { + try { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); + providerApiUrl = provider_json.getString(Provider.API_URL) + "/" + provider_json.getString(Provider.API_VERSION); + go_ahead = true; + } catch (JSONException e) { + go_ahead = false; + } + } + + if (action.equals(UPDATE_PROVIDER_DETAILS)) { + resetProviderDetails(); + Bundle task = new Bundle(); + task.putString(MAIN_URL, lastProviderMainUrl); + Bundle result = setUpProvider(task); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(PROVIDER_OK, result); + } else { + receiver.send(PROVIDER_NOK, result); + } + } else if (action.equalsIgnoreCase(SET_UP_PROVIDER)) { + Bundle result = setUpProvider(parameters); + if (go_ahead) { + if (result.getBoolean(RESULT_KEY)) { + receiver.send(PROVIDER_OK, result); + } else { + receiver.send(PROVIDER_NOK, result); + } + } + } else if (action.equalsIgnoreCase(SIGN_UP)) { + UserStatus.updateStatus(UserStatus.SessionStatus.SIGNING_UP, resources); + Bundle result = tryToRegister(parameters); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(SUCCESSFUL_SIGNUP, result); + } else { + receiver.send(FAILED_SIGNUP, result); + } + } else if (action.equalsIgnoreCase(LOG_IN)) { + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGING_IN, resources); + Bundle result = tryToAuthenticate(parameters); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(SUCCESSFUL_LOGIN, result); + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGED_IN, resources); + } else { + receiver.send(FAILED_LOGIN, result); + UserStatus.updateStatus(UserStatus.SessionStatus.NOT_LOGGED_IN, resources); + } + } else if (action.equalsIgnoreCase(LOG_OUT)) { + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGING_OUT, resources); + if (logOut()) { + receiver.send(SUCCESSFUL_LOGOUT, Bundle.EMPTY); + UserStatus.updateStatus(UserStatus.SessionStatus.LOGGED_OUT, resources); + } else { + receiver.send(LOGOUT_FAILED, Bundle.EMPTY); + UserStatus.updateStatus(UserStatus.SessionStatus.DIDNT_LOG_OUT, resources); + } + } else if (action.equalsIgnoreCase(DOWNLOAD_CERTIFICATE)) { + if (updateVpnCertificate()) { + receiver.send(CORRECTLY_DOWNLOADED_CERTIFICATE, Bundle.EMPTY); + } else { + receiver.send(INCORRECTLY_DOWNLOADED_CERTIFICATE, Bundle.EMPTY); + } + } else if (action.equalsIgnoreCase(DOWNLOAD_EIP_SERVICE)) { + Bundle result = getAndSetEipServiceJson(); + if (result.getBoolean(RESULT_KEY)) { + receiver.send(CORRECTLY_DOWNLOADED_EIP_SERVICE, result); + } else { + receiver.send(INCORRECTLY_DOWNLOADED_EIP_SERVICE, result); + } + } + } + + protected void resetProviderDetails() { + CA_CERT_DOWNLOADED = PROVIDER_JSON_DOWNLOADED = false; + deleteProviderDetailsFromPreferences(providerDefinition); + providerCaCert = ""; + providerDefinition = new JSONObject(); + } + + protected String formatErrorMessage(final int toastStringId) { + return formatErrorMessage(resources.getString(toastStringId)); + } + + private String formatErrorMessage(String errorMessage) { + return "{ \"" + ERRORS + "\" : \"" + errorMessage + "\" }"; + } + + private JSONObject getErrorMessageAsJson(final int toastStringId) { + try { + return new JSONObject(formatErrorMessage(toastStringId)); + } catch (JSONException e) { + e.printStackTrace(); + return new JSONObject(); + } + } + + protected void addErrorMessageToJson(JSONObject jsonObject, String errorMessage) { + try { + jsonObject.put(ERRORS, errorMessage); + } catch (JSONException e) { + e.printStackTrace(); + } + } + + protected void addErrorMessageToJson(JSONObject jsonObject, String errorMessage, String errorId) { + try { + jsonObject.put(ERRORS, errorMessage); + jsonObject.put(ERRORID, errorId); + } catch (JSONException e) { + e.printStackTrace(); + } + } + + + + + private Bundle tryToRegister(Bundle task) { + Bundle result = new Bundle(); + int progress = 0; + + String username = User.userName(); + String password = task.getString(SessionDialog.PASSWORD); + + if (validUserLoginData(username, password)) { + result = register(username, password); + broadcastProgress(progress++); + } else { + if (!wellFormedPassword(password)) { + result.putBoolean(RESULT_KEY, false); + result.putString(SessionDialog.USERNAME, username); + result.putBoolean(SessionDialog.ERRORS.PASSWORD_INVALID_LENGTH.toString(), true); + } + if (!validUsername(username)) { + result.putBoolean(RESULT_KEY, false); + result.putBoolean(SessionDialog.ERRORS.USERNAME_MISSING.toString(), true); + } + } + + return result; + } + + private Bundle register(String username, String password) { + JSONObject stepResult = null; + OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(stepResult); + if (okHttpClient == null) { + return authFailedNotification(stepResult, username); + } + + LeapSRPSession client = new LeapSRPSession(username, password); + byte[] salt = client.calculateNewSalt(); + + BigInteger password_verifier = client.calculateV(username, password, salt); + + JSONObject api_result = sendNewUserDataToSRPServer(providerApiUrl, username, new BigInteger(1, salt).toString(16), password_verifier.toString(16), okHttpClient); + + Bundle result = new Bundle(); + if (api_result.has(ERRORS)) + result = authFailedNotification(api_result, username); + else { + result.putString(SessionDialog.USERNAME, username); + result.putString(SessionDialog.PASSWORD, password); + result.putBoolean(RESULT_KEY, true); + } + + return result; + } + + /** + * Starts the authentication process using SRP protocol. + * + * @param task containing: username, password and api url. + * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if authentication was successful. + */ + private Bundle tryToAuthenticate(Bundle task) { + Bundle result = new Bundle(); + int progress = 0; + + String username = User.userName(); + String password = task.getString(SessionDialog.PASSWORD); + if (validUserLoginData(username, password)) { + result = authenticate(username, password); + broadcastProgress(progress++); + } else { + if (!wellFormedPassword(password)) { + result.putBoolean(RESULT_KEY, false); + result.putString(SessionDialog.USERNAME, username); + result.putBoolean(SessionDialog.ERRORS.PASSWORD_INVALID_LENGTH.toString(), true); + } + if (!validUsername(username)) { + result.putBoolean(RESULT_KEY, false); + result.putBoolean(SessionDialog.ERRORS.USERNAME_MISSING.toString(), true); + } + } + + return result; + } + + private Bundle authenticate(String username, String password) { + Bundle result = new Bundle(); + JSONObject stepResult = new JSONObject(); + OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(stepResult); + if (okHttpClient == null) { + return authFailedNotification(stepResult, username); + } + + LeapSRPSession client = new LeapSRPSession(username, password); + byte[] A = client.exponential(); + + JSONObject step_result = sendAToSRPServer(providerApiUrl, username, new BigInteger(1, A).toString(16), okHttpClient); + try { + String salt = step_result.getString(LeapSRPSession.SALT); + byte[] Bbytes = new BigInteger(step_result.getString("B"), 16).toByteArray(); + byte[] M1 = client.response(new BigInteger(salt, 16).toByteArray(), Bbytes); + if (M1 != null) { + step_result = sendM1ToSRPServer(providerApiUrl, username, M1, okHttpClient); + setTokenIfAvailable(step_result); + byte[] M2 = new BigInteger(step_result.getString(LeapSRPSession.M2), 16).toByteArray(); + if (client.verify(M2)) { + result.putBoolean(RESULT_KEY, true); + } else { + authFailedNotification(step_result, username); + } + } else { + result.putBoolean(RESULT_KEY, false); + result.putString(SessionDialog.USERNAME, username); + result.putString(resources.getString(R.string.user_message), resources.getString(R.string.error_srp_math_error_user_message)); + } + } catch (JSONException e) { + result = authFailedNotification(step_result, username); + e.printStackTrace(); + } + + return result; + } + + private boolean setTokenIfAvailable(JSONObject authentication_step_result) { + try { + LeapSRPSession.setToken(authentication_step_result.getString(LeapSRPSession.TOKEN)); + } catch (JSONException e) { // + return false; + } + return true; + } + + private Bundle authFailedNotification(JSONObject result, String username) { + Bundle userNotificationBundle = new Bundle(); + Object baseErrorMessage = result.opt(ERRORS); + if (baseErrorMessage != null) { + if (baseErrorMessage instanceof JSONObject) { + try { + JSONObject errorMessage = result.getJSONObject(ERRORS); + String errorType = errorMessage.keys().next().toString(); + String message = errorMessage.get(errorType).toString(); + userNotificationBundle.putString(resources.getString(R.string.user_message), message); + } catch (JSONException e) { + e.printStackTrace(); + } + } else if (baseErrorMessage instanceof String) { + try { + String errorMessage = result.getString(ERRORS); + userNotificationBundle.putString(resources.getString(R.string.user_message), errorMessage); + } catch (JSONException e) { + e.printStackTrace(); + } + } + } + + if (!username.isEmpty()) + userNotificationBundle.putString(SessionDialog.USERNAME, username); + userNotificationBundle.putBoolean(RESULT_KEY, false); + + return userNotificationBundle; + } + + /** + * Sets up an intent with the progress value passed as a parameter + * and sends it as a broadcast. + * + * @param progress + */ + protected void broadcastProgress(int progress) { + Intent intentUpdate = new Intent(); + intentUpdate.setAction(UPDATE_PROGRESSBAR); + intentUpdate.addCategory(Intent.CATEGORY_DEFAULT); + intentUpdate.putExtra(CURRENT_PROGRESS, progress); + serviceCallback.broadcastProgress(intentUpdate); + //sendBroadcast(intentUpdate); + } + + /** + * Validates parameters entered by the user to log in + * + * @param username + * @param password + * @return true if both parameters are present and the entered password length is greater or equal to eight (8). + */ + private boolean validUserLoginData(String username, String password) { + return validUsername(username) && wellFormedPassword(password); + } + + private boolean validUsername(String username) { + return username != null && !username.isEmpty(); + } + + /** + * Validates a password + * + * @param password + * @return true if the entered password length is greater or equal to eight (8). + */ + private boolean wellFormedPassword(String password) { + return password != null && password.length() >= 8; + } + + /** + * Sends an HTTP POST request to the authentication server with the SRP Parameter A. + * + * @param server_url + * @param username + * @param clientA First SRP parameter sent + * @param okHttpClient + * @return response from authentication server + */ + private JSONObject sendAToSRPServer(String server_url, String username, String clientA, OkHttpClient okHttpClient) { + SrpCredentials srpCredentials = new SrpCredentials(username, clientA); + return sendToServer(server_url + "/sessions.json", "POST", srpCredentials.toString(), okHttpClient); + } + + /** + * Sends an HTTP PUT request to the authentication server with the SRP Parameter M1 (or simply M). + * + * @param server_url + * @param username + * @param m1 Second SRP parameter sent + * @param okHttpClient + * @return response from authentication server + */ + private JSONObject sendM1ToSRPServer(String server_url, String username, byte[] m1, OkHttpClient okHttpClient) { + String m1json = "{\"client_auth\":\"" + new BigInteger(1, ConfigHelper.trim(m1)).toString(16)+ "\"}"; + return sendToServer(server_url + "/sessions/" + username + ".json", "PUT", m1json, okHttpClient); + } + + /** + * Sends an HTTP POST request to the api server to register a new user. + * + * @param server_url + * @param username + * @param salt + * @param password_verifier + * @param okHttpClient + * @return response from authentication server + */ + private JSONObject sendNewUserDataToSRPServer(String server_url, String username, String salt, String password_verifier, OkHttpClient okHttpClient) { + return sendToServer(server_url + "/users.json", "POST", new SrpRegistrationData(username, salt, password_verifier).toString(), okHttpClient); + } + + /** + * Executes an HTTP request expecting a JSON response. + * + * @param url + * @param request_method + * @return response from authentication server + */ + private JSONObject sendToServer(String url, String request_method, String jsonString, OkHttpClient okHttpClient) { + return requestJsonFromServer(url, request_method, jsonString, null, okHttpClient); + } + + protected String sendGetStringToServer(String url, List> headerArgs, OkHttpClient okHttpClient) { + return requestStringFromServer(url, "GET", null, headerArgs, okHttpClient); + } + + + + private JSONObject requestJsonFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { + JSONObject responseJson; + String plain_response = requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); + + try { + responseJson = new JSONObject(plain_response); + } catch (JSONException e) { + e.printStackTrace(); + responseJson = getErrorMessageAsJson(error_json_exception_user_message); + } + return responseJson; + + } + + private String requestStringFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { + //Response response; + String plainResponseBody = null; + + /*RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null; + Request.Builder requestBuilder = new Request.Builder() + .url(url) + .method(request_method, jsonBody); + if (headerArgs != null) { + for (Pair keyValPair : headerArgs) { + requestBuilder.addHeader(keyValPair.first, keyValPair.second); + } + } + //TODO: move to getHeaderArgs()? + String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry(); + requestBuilder.addHeader("Accept-Language", locale); + Request request = requestBuilder.build(); +*/ + try { + //response = okHttpClient.newCall(request).execute(); + //response = ProviderApiConnector.requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); + //InputStream inputStream = response.body().byteStream(); + //Scanner scanner = new Scanner(inputStream).useDelimiter("\\A"); + //if (scanner.hasNext()) { + // plainResponseBody = scanner.next(); + //} + + plainResponseBody = ProviderApiConnector.requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); + } catch (NullPointerException npe) { + plainResponseBody = formatErrorMessage(error_json_exception_user_message); + } catch (UnknownHostException | SocketTimeoutException e) { + plainResponseBody = formatErrorMessage(server_unreachable_message); + } catch (MalformedURLException e) { + plainResponseBody = formatErrorMessage(malformed_url); + } catch (SSLHandshakeException e) { + plainResponseBody = formatErrorMessage(certificate_error); + } catch (ConnectException e) { + plainResponseBody = formatErrorMessage(service_is_down_error); + } catch (IllegalArgumentException e) { + plainResponseBody = formatErrorMessage(error_no_such_algorithm_exception_user_message); + } catch (UnknownServiceException e) { + //unable to find acceptable protocols - tlsv1.2 not enabled? + plainResponseBody = formatErrorMessage(error_no_such_algorithm_exception_user_message); + } catch (IOException e) { + plainResponseBody = formatErrorMessage(error_io_exception_user_message); + } + + return plainResponseBody; + } + + /** + * Downloads a provider.json from a given URL, adding a new provider using the given name. + * + * @param task containing a boolean meaning if the provider is custom or not, another boolean meaning if the user completely trusts this provider, the provider name and its provider.json url. + * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if the update was successful. + */ + protected abstract Bundle setUpProvider(Bundle task); + + /** + * Downloads the eip-service.json from a given URL, and saves eip service capabilities including the offered gateways + * @return a bundle with a boolean value mapped to a key named RESULT_KEY, and which is true if the download was successful. + */ + protected abstract Bundle getAndSetEipServiceJson(); + + /** + * Downloads a new OpenVPN certificate, attaching authenticated cookie for authenticated certificate. + * + * @return true if certificate was downloaded correctly, false if provider.json is not present in SharedPreferences, or if the certificate url could not be parsed as a URI, or if there was an SSL error. + */ + protected abstract boolean updateVpnCertificate(); + + + protected static boolean caCertDownloaded() { + return CA_CERT_DOWNLOADED; + } + + protected boolean isValidJson(String jsonString) { + try { + new JSONObject(jsonString); + return true; + } catch(JSONException e) { + return false; + } catch(NullPointerException e) { + e.printStackTrace(); + return false; + } + } + + protected boolean validCertificate(String cert_string) { + boolean result = false; + if (!ConfigHelper.checkErroneousDownload(cert_string)) { + X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); + try { + if (certificate != null) { + JSONObject provider_json = new JSONObject(preferences.getString(Provider.KEY, "")); + String fingerprint = provider_json.getString(Provider.CA_CERT_FINGERPRINT); + String encoding = fingerprint.split(":")[0]; + String expected_fingerprint = fingerprint.split(":")[1]; + String real_fingerprint = getFingerprintFromCertificate(certificate, encoding); + + result = real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim()); + } else + result = false; + } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException /*| UnsupportedEncodingException*/ e) { + result = false; + } + } + + return result; + } + + + + protected void checkPersistedProviderUpdates() { + //String providerDomain = getProviderDomain(providerDefinition); + String providerDomain = getDomainFromMainURL(lastProviderMainUrl); + if (hasUpdatedProviderDetails(providerDomain)) { + providerCaCert = getPersistedProviderCA(providerDomain); + providerDefinition = getPersistedProviderDefinition(providerDomain); + providerCaCertFingerprint = getPersistedCaCertFingerprint(providerDomain); + providerApiUrl = getApiUrlWithVersion(providerDefinition); + } + } + + protected Bundle validateProviderDetails() { + Bundle result = validateCertificateForProvider(providerCaCert, providerDefinition, lastProviderMainUrl); + + //invalid certificate or no certificate + if (result.containsKey(ERRORS) || (result.containsKey(RESULT_KEY) && !result.getBoolean(RESULT_KEY)) ) { + return result; + } + + //valid certificate: skip download, save loaded provider CA cert and provider definition directly + try { + preferences.edit().putString(Provider.KEY, providerDefinition.toString()). + putBoolean(Constants.PROVIDER_ALLOW_ANONYMOUS, providerDefinition.getJSONObject(Provider.SERVICE).getBoolean(Constants.PROVIDER_ALLOW_ANONYMOUS)). + putBoolean(Constants.PROVIDER_ALLOWED_REGISTERED, providerDefinition.getJSONObject(Provider.SERVICE).getBoolean(Constants.PROVIDER_ALLOWED_REGISTERED)). + putString(Provider.CA_CERT, providerCaCert).commit(); + CA_CERT_DOWNLOADED = true; + PROVIDER_JSON_DOWNLOADED = true; + result.putBoolean(RESULT_KEY, true); + } catch (JSONException e) { + e.printStackTrace(); + result.putBoolean(RESULT_KEY, false); + result = setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + } + + return result; + } + + protected Bundle validateCertificateForProvider(String cert_string, JSONObject providerDefinition, String mainUrl) { + Bundle result = new Bundle(); + result.putBoolean(RESULT_KEY, false); + + if (ConfigHelper.checkErroneousDownload(cert_string)) { + return result; + } + + X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); + if (certificate == null) { + return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); + } + try { + certificate.checkValidity(); + String fingerprint = getCaCertFingerprint(providerDefinition); + String encoding = fingerprint.split(":")[0]; + String expected_fingerprint = fingerprint.split(":")[1]; + String real_fingerprint = getFingerprintFromCertificate(certificate, encoding); + if (!real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim())) { + return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString()); + } + + + if (!hasApiUrlExpectedDomain(providerDefinition, mainUrl)){ + return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + } + + if (!canConnect(cert_string, providerDefinition, result)) { + return result; + } + } catch (NoSuchAlgorithmException e ) { + return setErrorResult(result, resources.getString(error_no_such_algorithm_exception_user_message), null); + } catch (ArrayIndexOutOfBoundsException e) { + return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + } catch (CertificateEncodingException | CertificateNotYetValidException | CertificateExpiredException e) { + return setErrorResult(result, resources.getString(R.string.warning_expired_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); + } /*catch (UnsupportedEncodingException e) { + return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString()); + }*/ + + result.putBoolean(RESULT_KEY, true); + return result; + } + + protected Bundle setErrorResult(Bundle result, String errorMessage, String errorId) { + JSONObject errorJson = new JSONObject(); + if (errorId != null) { + addErrorMessageToJson(errorJson, errorMessage, errorId); + } else { + addErrorMessageToJson(errorJson, errorMessage); + } + result.putString(ERRORS, errorJson.toString()); + return result; + } + + /** + * This method aims to prevent attacks where the provider.json file got manipulated by a third party. + * The main url is visible to the provider when setting up a new provider. + * The user is responsible to check that this is the provider main url he intends to connect to. + * + * @param providerDefinition + * @param mainUrlString + * @return + */ + private boolean hasApiUrlExpectedDomain(JSONObject providerDefinition, String mainUrlString) { + // fix against "api_uri": "https://calyx.net.malicious.url.net:4430", + String apiUrlString = getApiUrl(providerDefinition); + String providerDomain = getProviderDomain(providerDefinition); + if (mainUrlString.contains(providerDomain) && apiUrlString.contains(providerDomain + ":")) { + return true; + } + return false; + } + + private boolean canConnect(String caCert, JSONObject providerDefinition, Bundle result) { + JSONObject errorJson = new JSONObject(); + String baseUrl = getApiUrl(providerDefinition); + + OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(errorJson, caCert); + if (okHttpClient == null) { + result.putString(ERRORS, errorJson.toString()); + return false; + } + + //try { + + return ProviderApiConnector.canConnect(okHttpClient, baseUrl); + /*} catch (RuntimeException | IOException e) { + e.printStackTrace(); + }*/ + + //return false; + + + /*List> headerArgs = getAuthorizationHeader(); + String plain_response = requestStringFromServer(baseUrl, "GET", null, headerArgs, okHttpClient); + + try { + if (new JSONObject(plain_response).has(ERRORS)) { + result.putString(ERRORS, plain_response); + return false; + } + } catch (JSONException e) { + //eat me + } + + return true;*/ + } + + protected String getCaCertFingerprint(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.CA_CERT_FINGERPRINT); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected String getApiUrl(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.API_URL); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected String getApiUrlWithVersion(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.API_URL) + "/" + providerDefinition.getString(Provider.API_VERSION); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected void deleteProviderDetailsFromPreferences(JSONObject providerDefinition) { + String providerDomain = getProviderDomain(providerDefinition); + + if (preferences.contains(Provider.KEY + "." + providerDomain)) { + preferences.edit().remove(Provider.KEY + "." + providerDomain).apply(); + } + if (preferences.contains(Provider.CA_CERT + "." + providerDomain)) { + preferences.edit().remove(Provider.CA_CERT + "." + providerDomain).apply(); + } + if (preferences.contains(Provider.CA_CERT_FINGERPRINT + "." + providerDomain)) { + preferences.edit().remove(Provider.CA_CERT_FINGERPRINT + "." + providerDomain).apply(); + } + } + + protected String getPersistedCaCertFingerprint(String providerDomain) { + try { + return getPersistedProviderDefinition(providerDomain).getString(Provider.CA_CERT_FINGERPRINT); + } catch (JSONException e) { + e.printStackTrace(); + } + return ""; + } + + protected JSONObject getPersistedProviderDefinition(String providerDomain) { + try { + return new JSONObject(preferences.getString(Provider.KEY + "." + providerDomain, "")); + } catch (JSONException e) { + e.printStackTrace(); + return new JSONObject(); + } + } + + protected String getPersistedProviderCA(String providerDomain) { + return preferences.getString(Provider.CA_CERT + "." + providerDomain, ""); + } + + protected String getProviderDomain(JSONObject providerDefinition) { + try { + return providerDefinition.getString(Provider.DOMAIN); + } catch (JSONException e) { + e.printStackTrace(); + } + + return ""; + } + + protected boolean hasUpdatedProviderDetails(String domain) { + return preferences.contains(Provider.KEY + "." + domain) && preferences.contains(Provider.CA_CERT + "." + domain); + } + + protected String getDomainFromMainURL(String mainUrl) { + return mainUrl.replaceFirst("http[s]?://", "").replaceFirst("/.*", ""); + + } + + /** + * Interprets the error message as a JSON object and extract the "errors" keyword pair. + * If the error message is not a JSON object, then it is returned untouched. + * + * @param string_json_error_message + * @return final error message + */ + protected String pickErrorMessage(String string_json_error_message) { + String error_message = ""; + try { + JSONObject json_error_message = new JSONObject(string_json_error_message); + error_message = json_error_message.getString(ERRORS); + } catch (JSONException e) { + // TODO Auto-generated catch block + error_message = string_json_error_message; + } catch (NullPointerException e) { + //do nothing + } + + return error_message; + } + + @NonNull + protected List> getAuthorizationHeader() { + List> headerArgs = new ArrayList<>(); + if (!LeapSRPSession.getToken().isEmpty()) { + Pair authorizationHeaderPair = new Pair<>(LeapSRPSession.AUTHORIZATION_HEADER, "Token token=" + LeapSRPSession.getToken()); + headerArgs.add(authorizationHeaderPair); + } + return headerArgs; + } + + private boolean logOut() { + OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(new JSONObject()); + if (okHttpClient == null) { + return false; + } + + String deleteUrl = providerApiUrl + "/logout"; + int progress = 0; + + /* Request.Builder requestBuilder = new Request.Builder() + .url(deleteUrl) + .delete(); + Request request = requestBuilder.build();*/ + + //try { + + //Response response = okHttpClient.newCall(request).execute(); +// Response response = ProviderApiConnector.delete(okHttpClient, deleteUrl); +// // v---- was already not authorized +// if (response.isSuccessful() || response.code() == 401) { +// broadcastProgress(progress++); +// LeapSRPSession.setToken(""); +// } +// +// } catch (IOException | RuntimeException e) { +// return false; +// } +// return true; + + if (ProviderApiConnector.delete(okHttpClient, deleteUrl)) { + broadcastProgress(progress++); + LeapSRPSession.setToken(""); + return true; + } + return false; + } + + //FIXME: don't save private keys in shared preferences! use the keystore + protected boolean loadCertificate(String cert_string) { + if (cert_string == null) { + return false; + } + + try { + // 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]; + } + } + + RSAPrivateKey key = ConfigHelper.parseRsaKeyFromString(keyString); + keyString = Base64.encodeToString(key.getEncoded(), Base64.DEFAULT); + preferences.edit().putString(Constants.PROVIDER_PRIVATE_KEY, "-----BEGIN RSA PRIVATE KEY-----\n" + keyString + "-----END RSA PRIVATE KEY-----").commit(); + + X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(certificateString); + certificateString = Base64.encodeToString(certificate.getEncoded(), Base64.DEFAULT); + preferences.edit().putString(Constants.PROVIDER_VPN_CERTIFICATE, "-----BEGIN CERTIFICATE-----\n" + certificateString + "-----END CERTIFICATE-----").commit(); + return true; + } catch (CertificateException e) { + // TODO Auto-generated catch block + e.printStackTrace(); + return false; + } + } +} diff --git a/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java b/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java index 61349490..bd9324bb 100644 --- a/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java +++ b/app/src/main/java/se/leap/bitmaskclient/userstatus/SessionDialog.java @@ -23,8 +23,6 @@ import android.view.*; import android.widget.*; import butterknife.*; -import se.leap.bitmaskclient.ProviderAPI; -import se.leap.bitmaskclient.VpnFragment; import se.leap.bitmaskclient.Provider; import se.leap.bitmaskclient.R; -- cgit v1.2.3 From ae8341cf1f563fbcf2bdd6a4eff9525f42e9e995 Mon Sep 17 00:00:00 2001 From: cyBerta Date: Wed, 10 Jan 2018 17:14:45 +0100 Subject: 8773 more test cases and clean-up --- .../bitmaskclient/BaseConfigurationWizard.java | 3 - .../java/se/leap/bitmaskclient/ConfigHelper.java | 25 ++-- .../leap/bitmaskclient/ProviderApiConnector.java | 18 +-- .../leap/bitmaskclient/ProviderApiManagerBase.java | 159 +++++++-------------- app/src/main/res/values/strings.xml | 2 +- 5 files changed, 74 insertions(+), 133 deletions(-) (limited to 'app/src/main') diff --git a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java index c26184bb..63453ac3 100644 --- a/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java +++ b/app/src/main/java/se/leap/bitmaskclient/BaseConfigurationWizard.java @@ -409,8 +409,6 @@ public abstract class BaseConfigurationWizard extends Activity } - - /** * Once selected a provider, this fragment offers the user to log in, * use it anonymously (if possible) @@ -430,7 +428,6 @@ public abstract class BaseConfigurationWizard extends Activity } } - @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.configuration_wizard_activity, menu); diff --git a/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java b/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java index 54bcc1f4..0e861059 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java +++ b/app/src/main/java/se/leap/bitmaskclient/ConfigHelper.java @@ -47,7 +47,7 @@ import java.security.spec.PKCS8EncodedKeySpec; import static android.R.attr.name; /** - * Stores constants, and implements auxiliary methods used across all LEAP Android classes. + * Stores constants, and implements auxiliary methods used across all Bitmask Android classes. * * @author parmegv * @author MeanderingCode @@ -172,25 +172,30 @@ public class ConfigHelper { return key; } - public static String base64toHex(String base64_input) { - byte[] byteArray = Base64.decode(base64_input); - int readBytes = byteArray.length; + private static String byteArrayToHex(byte[] input) { + int readBytes = input.length; StringBuffer hexData = new StringBuffer(); int onebyte; for (int i = 0; i < readBytes; i++) { - onebyte = ((0x000000ff & byteArray[i]) | 0xffffff00); + onebyte = ((0x000000ff & input[i]) | 0xffffff00); hexData.append(Integer.toHexString(onebyte).substring(6)); } return hexData.toString(); } + /** + * Calculates the hexadecimal representation of a sha256/sha1 fingerprint of a certificate + * + * @param certificate + * @param encoding + * @return + * @throws NoSuchAlgorithmException + * @throws CertificateEncodingException + */ @NonNull public static String getFingerprintFromCertificate(X509Certificate certificate, String encoding) throws NoSuchAlgorithmException, CertificateEncodingException /*, UnsupportedEncodingException*/ { - return base64toHex( - //new String(Base64.encode(MessageDigest.getInstance(encoding).digest(certificate.getEncoded())), "US-ASCII")); - android.util.Base64.encodeToString( - MessageDigest.getInstance(encoding).digest(certificate.getEncoded()), - android.util.Base64.DEFAULT)); + byte[] byteArray = MessageDigest.getInstance(encoding).digest(certificate.getEncoded()); + return byteArrayToHex(byteArray); } /** diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java index 9aad14d5..439fb5e2 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java @@ -60,18 +60,14 @@ public class ProviderApiConnector { return false; } - public static boolean canConnect(@NonNull OkHttpClient okHttpClient, String url) { - try { - Request.Builder requestBuilder = new Request.Builder() - .url(url) - .method("GET", null); - Request request = requestBuilder.build(); + public static boolean canConnect(@NonNull OkHttpClient okHttpClient, String url) throws RuntimeException, IOException { + Request.Builder requestBuilder = new Request.Builder() + .url(url) + .method("GET", null); + Request request = requestBuilder.build(); - Response response = okHttpClient.newCall(request).execute(); - return response.isSuccessful(); - } catch (RuntimeException | IOException e) { - return false; - } + Response response = okHttpClient.newCall(request).execute(); + return response.isSuccessful(); } diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java index 396d642b..cc005fcd 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java @@ -30,7 +30,6 @@ import org.json.JSONException; import org.json.JSONObject; import java.io.IOException; -import java.io.InputStream; import java.math.BigInteger; import java.net.ConnectException; import java.net.MalformedURLException; @@ -46,16 +45,10 @@ import java.security.cert.X509Certificate; import java.security.interfaces.RSAPrivateKey; import java.util.ArrayList; import java.util.List; -import java.util.Locale; -import java.util.Scanner; import javax.net.ssl.SSLHandshakeException; -import okhttp3.MediaType; import okhttp3.OkHttpClient; -import okhttp3.Request; -import okhttp3.RequestBody; -import okhttp3.Response; import se.leap.bitmaskclient.userstatus.SessionDialog; import se.leap.bitmaskclient.userstatus.User; import se.leap.bitmaskclient.userstatus.UserStatus; @@ -96,9 +89,11 @@ import static se.leap.bitmaskclient.R.string.error_io_exception_user_message; import static se.leap.bitmaskclient.R.string.error_json_exception_user_message; import static se.leap.bitmaskclient.R.string.error_no_such_algorithm_exception_user_message; import static se.leap.bitmaskclient.R.string.malformed_url; -import static se.leap.bitmaskclient.R.string.retry; import static se.leap.bitmaskclient.R.string.server_unreachable_message; import static se.leap.bitmaskclient.R.string.service_is_down_error; +import static se.leap.bitmaskclient.R.string.warning_corrupted_provider_cert; +import static se.leap.bitmaskclient.R.string.warning_corrupted_provider_details; +import static se.leap.bitmaskclient.R.string.warning_expired_provider_cert; /** * Implements the logic of the http api calls. The methods of this class needs to be called from @@ -136,10 +131,6 @@ public abstract class ProviderApiManagerBase { return lastProviderMainUrl; } - - private final MediaType JSON - = MediaType.parse("application/json; charset=utf-8"); - public ProviderApiManagerBase(SharedPreferences preferences, Resources resources, OkHttpClientGenerator clientGenerator, ProviderApiServiceCallback callback) { this.preferences = preferences; this.resources = resources; @@ -390,7 +381,7 @@ public abstract class ProviderApiManagerBase { private boolean setTokenIfAvailable(JSONObject authentication_step_result) { try { LeapSRPSession.setToken(authentication_step_result.getString(LeapSRPSession.TOKEN)); - } catch (JSONException e) { // + } catch (JSONException e) { return false; } return true; @@ -540,33 +531,12 @@ public abstract class ProviderApiManagerBase { } private String requestStringFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { - //Response response; String plainResponseBody = null; - /*RequestBody jsonBody = jsonString != null ? RequestBody.create(JSON, jsonString) : null; - Request.Builder requestBuilder = new Request.Builder() - .url(url) - .method(request_method, jsonBody); - if (headerArgs != null) { - for (Pair keyValPair : headerArgs) { - requestBuilder.addHeader(keyValPair.first, keyValPair.second); - } - } - //TODO: move to getHeaderArgs()? - String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry(); - requestBuilder.addHeader("Accept-Language", locale); - Request request = requestBuilder.build(); -*/ try { - //response = okHttpClient.newCall(request).execute(); - //response = ProviderApiConnector.requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); - //InputStream inputStream = response.body().byteStream(); - //Scanner scanner = new Scanner(inputStream).useDelimiter("\\A"); - //if (scanner.hasNext()) { - // plainResponseBody = scanner.next(); - //} plainResponseBody = ProviderApiConnector.requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); + } catch (NullPointerException npe) { plainResponseBody = formatErrorMessage(error_json_exception_user_message); } catch (UnknownHostException | SocketTimeoutException e) { @@ -589,6 +559,39 @@ public abstract class ProviderApiManagerBase { return plainResponseBody; } + private boolean canConnect(String caCert, JSONObject providerDefinition, Bundle result) { + JSONObject errorJson = new JSONObject(); + String baseUrl = getApiUrl(providerDefinition); + + OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(errorJson, caCert); + if (okHttpClient == null) { + result.putString(ERRORS, errorJson.toString()); + return false; + } + + try { + + return ProviderApiConnector.canConnect(okHttpClient, baseUrl); + + } catch (UnknownHostException | SocketTimeoutException e) { + setErrorResult(result, server_unreachable_message, null); + } catch (MalformedURLException e) { + setErrorResult(result, malformed_url, null); + } catch (SSLHandshakeException e) { + setErrorResult(result, warning_corrupted_provider_cert, ERROR_INVALID_CERTIFICATE.toString()); + } catch (ConnectException e) { + setErrorResult(result, service_is_down_error, null); + } catch (IllegalArgumentException e) { + setErrorResult(result, error_no_such_algorithm_exception_user_message, null); + } catch (UnknownServiceException e) { + //unable to find acceptable protocols - tlsv1.2 not enabled? + setErrorResult(result, error_no_such_algorithm_exception_user_message, null); + } catch (IOException e) { + setErrorResult(result, error_io_exception_user_message, null); + } + return false; + } + /** * Downloads a provider.json from a given URL, adding a new provider using the given name. * @@ -642,7 +645,7 @@ public abstract class ProviderApiManagerBase { result = real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim()); } else result = false; - } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException /*| UnsupportedEncodingException*/ e) { + } catch (JSONException | NoSuchAlgorithmException | CertificateEncodingException e) { result = false; } } @@ -650,10 +653,7 @@ public abstract class ProviderApiManagerBase { return result; } - - protected void checkPersistedProviderUpdates() { - //String providerDomain = getProviderDomain(providerDefinition); String providerDomain = getDomainFromMainURL(lastProviderMainUrl); if (hasUpdatedProviderDetails(providerDomain)) { providerCaCert = getPersistedProviderCA(providerDomain); @@ -682,8 +682,7 @@ public abstract class ProviderApiManagerBase { result.putBoolean(RESULT_KEY, true); } catch (JSONException e) { e.printStackTrace(); - result.putBoolean(RESULT_KEY, false); - result = setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + setErrorResult(result, warning_corrupted_provider_details, ERROR_CORRUPTED_PROVIDER_JSON.toString()); } return result; @@ -699,7 +698,7 @@ public abstract class ProviderApiManagerBase { X509Certificate certificate = ConfigHelper.parseX509CertificateFromString(cert_string); if (certificate == null) { - return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); + return setErrorResult(result, warning_corrupted_provider_cert, ERROR_INVALID_CERTIFICATE.toString()); } try { certificate.checkValidity(); @@ -708,39 +707,38 @@ public abstract class ProviderApiManagerBase { String expected_fingerprint = fingerprint.split(":")[1]; String real_fingerprint = getFingerprintFromCertificate(certificate, encoding); if (!real_fingerprint.trim().equalsIgnoreCase(expected_fingerprint.trim())) { - return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString()); + return setErrorResult(result, warning_corrupted_provider_cert, ERROR_CERTIFICATE_PINNING.toString()); } if (!hasApiUrlExpectedDomain(providerDefinition, mainUrl)){ - return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + return setErrorResult(result, warning_corrupted_provider_details, ERROR_CORRUPTED_PROVIDER_JSON.toString()); } if (!canConnect(cert_string, providerDefinition, result)) { return result; } } catch (NoSuchAlgorithmException e ) { - return setErrorResult(result, resources.getString(error_no_such_algorithm_exception_user_message), null); + return setErrorResult(result, error_no_such_algorithm_exception_user_message, null); } catch (ArrayIndexOutOfBoundsException e) { - return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_details), ERROR_CORRUPTED_PROVIDER_JSON.toString()); + return setErrorResult(result, warning_corrupted_provider_details, ERROR_CORRUPTED_PROVIDER_JSON.toString()); } catch (CertificateEncodingException | CertificateNotYetValidException | CertificateExpiredException e) { - return setErrorResult(result, resources.getString(R.string.warning_expired_provider_cert), ERROR_INVALID_CERTIFICATE.toString()); - } /*catch (UnsupportedEncodingException e) { - return setErrorResult(result, resources.getString(R.string.warning_corrupted_provider_cert), ERROR_CERTIFICATE_PINNING.toString()); - }*/ + return setErrorResult(result, warning_expired_provider_cert, ERROR_INVALID_CERTIFICATE.toString()); + } result.putBoolean(RESULT_KEY, true); return result; } - protected Bundle setErrorResult(Bundle result, String errorMessage, String errorId) { + protected Bundle setErrorResult(Bundle result, int errorMessageId, String errorId) { JSONObject errorJson = new JSONObject(); if (errorId != null) { - addErrorMessageToJson(errorJson, errorMessage, errorId); + addErrorMessageToJson(errorJson, resources.getString(errorMessageId), errorId); } else { - addErrorMessageToJson(errorJson, errorMessage); + addErrorMessageToJson(errorJson, resources.getString(errorMessageId)); } result.putString(ERRORS, errorJson.toString()); + result.putBoolean(RESULT_KEY, false); return result; } @@ -763,41 +761,6 @@ public abstract class ProviderApiManagerBase { return false; } - private boolean canConnect(String caCert, JSONObject providerDefinition, Bundle result) { - JSONObject errorJson = new JSONObject(); - String baseUrl = getApiUrl(providerDefinition); - - OkHttpClient okHttpClient = clientGenerator.initSelfSignedCAHttpClient(errorJson, caCert); - if (okHttpClient == null) { - result.putString(ERRORS, errorJson.toString()); - return false; - } - - //try { - - return ProviderApiConnector.canConnect(okHttpClient, baseUrl); - /*} catch (RuntimeException | IOException e) { - e.printStackTrace(); - }*/ - - //return false; - - - /*List> headerArgs = getAuthorizationHeader(); - String plain_response = requestStringFromServer(baseUrl, "GET", null, headerArgs, okHttpClient); - - try { - if (new JSONObject(plain_response).has(ERRORS)) { - result.putString(ERRORS, plain_response); - return false; - } - } catch (JSONException e) { - //eat me - } - - return true;*/ - } - protected String getCaCertFingerprint(JSONObject providerDefinition) { try { return providerDefinition.getString(Provider.CA_CERT_FINGERPRINT); @@ -921,26 +884,6 @@ public abstract class ProviderApiManagerBase { String deleteUrl = providerApiUrl + "/logout"; int progress = 0; - /* Request.Builder requestBuilder = new Request.Builder() - .url(deleteUrl) - .delete(); - Request request = requestBuilder.build();*/ - - //try { - - //Response response = okHttpClient.newCall(request).execute(); -// Response response = ProviderApiConnector.delete(okHttpClient, deleteUrl); -// // v---- was already not authorized -// if (response.isSuccessful() || response.code() == 401) { -// broadcastProgress(progress++); -// LeapSRPSession.setToken(""); -// } -// -// } catch (IOException | RuntimeException e) { -// return false; -// } -// return true; - if (ProviderApiConnector.delete(okHttpClient, deleteUrl)) { broadcastProgress(progress++); LeapSRPSession.setToken(""); diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml index 680f92e1..f59acd3d 100644 --- a/app/src/main/res/values/strings.xml +++ b/app/src/main/res/values/strings.xml @@ -85,6 +85,6 @@ Update provider details Update certificate Stored provider details are corrupted. You can either update Bitmask (recommended) or update the provider details using a commercial CA certificate. - Stored provider certificate is corrupted. You can either update Bitmask (recommended) or update the provider certificate using a commercial CA certificate. + Stored provider certificate is invalid. You can either update Bitmask (recommended) or update the provider certificate using a commercial CA certificate. Stored provider certificate is expired. You can either update Bitmask (recommended) or update the provider certificate using a commercial CA certificate. -- cgit v1.2.3 From 1e94e6e1403d97e47119318bd43b173ef20658b1 Mon Sep 17 00:00:00 2001 From: cyBerta Date: Thu, 11 Jan 2018 14:59:56 +0100 Subject: #8773 code review fixes --- app/src/main/java/se/leap/bitmaskclient/Provider.java | 5 +++-- app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java | 8 ++++---- .../main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java | 6 +++--- 3 files changed, 10 insertions(+), 9 deletions(-) (limited to 'app/src/main') diff --git a/app/src/main/java/se/leap/bitmaskclient/Provider.java b/app/src/main/java/se/leap/bitmaskclient/Provider.java index ae07bc25..60b1b93c 100644 --- a/app/src/main/java/se/leap/bitmaskclient/Provider.java +++ b/app/src/main/java/se/leap/bitmaskclient/Provider.java @@ -234,7 +234,7 @@ public final class Provider implements Parcelable { public boolean equals(Object o) { if (o instanceof Provider) { Provider p = (Provider) o; - return p.getMainUrl().getDomain().equals(getMainUrl().getDomain()); + return p.getDomain().equals(getDomain()); } else return false; } @@ -253,7 +253,7 @@ public final class Provider implements Parcelable { @Override public int hashCode() { - return getMainUrl().getDomain().hashCode(); + return getDomain().hashCode(); } @Override @@ -261,6 +261,7 @@ public final class Provider implements Parcelable { return new Gson().toJson(this); } + //TODO: write a test for marshalling! private Provider(Parcel in) { try { mainUrl.setUrl(new URL(in.readString())); diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java index 439fb5e2..af79a95e 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiConnector.java @@ -50,6 +50,7 @@ public class ProviderApiConnector { Request request = requestBuilder.build(); Response response = okHttpClient.newCall(request).execute(); + //response code 401: already logged out if (response.isSuccessful() || response.code() == 401) { return true; } @@ -77,11 +78,10 @@ public class ProviderApiConnector { Request.Builder requestBuilder = new Request.Builder() .url(url) .method(request_method, jsonBody); - if (headerArgs != null) { - for (Pair keyValPair : headerArgs) { - requestBuilder.addHeader(keyValPair.first, keyValPair.second); - } + for (Pair keyValPair : headerArgs) { + requestBuilder.addHeader(keyValPair.first, keyValPair.second); } + //TODO: move to getHeaderArgs()? String locale = Locale.getDefault().getLanguage() + Locale.getDefault().getCountry(); requestBuilder.addHeader("Accept-Language", locale); diff --git a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java index cc005fcd..9f5fdc2d 100644 --- a/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java +++ b/app/src/main/java/se/leap/bitmaskclient/ProviderApiManagerBase.java @@ -510,13 +510,13 @@ public abstract class ProviderApiManagerBase { return requestJsonFromServer(url, request_method, jsonString, null, okHttpClient); } - protected String sendGetStringToServer(String url, List> headerArgs, OkHttpClient okHttpClient) { + protected String sendGetStringToServer(@NonNull String url, @NonNull List> headerArgs, @NonNull OkHttpClient okHttpClient) { return requestStringFromServer(url, "GET", null, headerArgs, okHttpClient); } - private JSONObject requestJsonFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { + private JSONObject requestJsonFromServer(@NonNull String url, @NonNull String request_method, String jsonString, @NonNull List> headerArgs, @NonNull OkHttpClient okHttpClient) { JSONObject responseJson; String plain_response = requestStringFromServer(url, request_method, jsonString, headerArgs, okHttpClient); @@ -530,7 +530,7 @@ public abstract class ProviderApiManagerBase { } - private String requestStringFromServer(String url, String request_method, String jsonString, List> headerArgs, @NonNull OkHttpClient okHttpClient) { + private String requestStringFromServer(@NonNull String url, @NonNull String request_method, String jsonString, @NonNull List> headerArgs, @NonNull OkHttpClient okHttpClient) { String plainResponseBody = null; try { -- cgit v1.2.3