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package se.leap.leapclient;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.math.BigInteger;
import java.io.InputStream;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import org.json.JSONException;
import org.json.JSONObject;
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Environment;
/**
* Stores constants, and implements auxiliary methods used across all LEAP Android classes.
*
* @author parmegv
* @author MeanderingCode
*
*/
public class ConfigHelper {
public static SharedPreferences shared_preferences;
private static KeyStore keystore_trusted;
final public static String
DOWNLOAD_JSON_FILES_BUNDLE_EXTRA = "downloadJSONFiles",
UPDATE_PROVIDER_DOTJSON = "updateProviderDotJSON",
DOWNLOAD_NEW_PROVIDER_DOTJSON = "downloadNewProviderDotJSON",
LOG_IN_DIALOG = "logInDialog",
NEW_PROVIDER_DIALOG = "logInDialog",
SRP_REGISTER = "srpRegister",
SRP_AUTH = "srpAuth",
LOG_IN = "logIn",
LOG_OUT = "logOut",
DOWNLOAD_CERTIFICATE = "downloadUserAuthedCertificate",
API_VERSION_KEY = "api_version",
RESULT_KEY = "result",
PROVIDER_KEY = "provider",
SERVICE_KEY = "service",
ALLOWED_ANON = "allow_anonymous",
MAIN_CERT_KEY = "main_cert",
CERT_KEY = "cert",
EIP_SERVICE_KEY = "eip",
TYPE_OF_CERTIFICATE = "type_of_certificate",
ANON_CERTIFICATE = "anon_certificate",
AUTHED_CERTIFICATE = "authed_certificate",
SALT_KEY = "salt",
SESSION_ID_COOKIE_KEY = "session_id_cookie_key",
SESSION_ID_KEY = "session_id",
PREFERENCES_KEY = "LEAPPreferences",
USER_DIRECTORY = "leap_android",
PROVIDER_NAME = "provider_name",
PROVIDER_MAIN_URL = "provider_main_url",
PROVIDER_JSON_URL = "provider_json_url",
CUSTOM = "custom",
DANGER_ON = "danger_on",
API_URL_KEY = "api_uri",
USERNAME_KEY = "username",
PASSWORD_KEY = "password",
ALLOW_REGISTRATION_KEY = "allow_registration",
EIP_SERVICE_API_PATH = "config/eip-service.json"
;
final public static String NG_1024 =
"eeaf0ab9adb38dd69c33f80afa8fc5e86072618775ff3c0b9ea2314c9c256576d674df7496ea81d3383b4813d692c6e0e0d5d8e250b98be48e495c1d6089dad15dc7d7b46154d6b6ce8ef4ad69b15d4982559b297bcf1885c529f566660e57ec68edbc3c05726cc02fd4cbf4976eaa9afd5138fe8376435b9fc61d2fc0eb06e3";
final public static BigInteger G = new BigInteger("2");
final public static int
CUSTOM_PROVIDER_ADDED = 0,
CORRECTLY_DOWNLOADED_JSON_FILES = 1,
INCORRECTLY_DOWNLOADED_JSON_FILES = 2,
SRP_AUTHENTICATION_SUCCESSFUL = 3,
SRP_AUTHENTICATION_FAILED = 4,
SRP_REGISTRATION_SUCCESSFUL = 5,
SRP_REGISTRATION_FAILED = 6,
LOGOUT_SUCCESSFUL = 7,
LOGOUT_FAILED = 8,
CORRECTLY_DOWNLOADED_CERTIFICATE = 9,
INCORRECTLY_DOWNLOADED_CERTIFICATE = 10,
CORRECTLY_UPDATED_PROVIDER_DOT_JSON = 11,
INCORRECTLY_UPDATED_PROVIDER_DOT_JSON = 12,
CORRECTLY_DOWNLOADED_ANON_CERTIFICATE = 13,
INCORRECTLY_DOWNLOADED_ANON_CERTIFICATE = 14
;
private static boolean checkSharedPrefs() {
try {
shared_preferences = Dashboard.getAppContext().getSharedPreferences(PREFERENCES_KEY,Context.MODE_PRIVATE);
} catch (Exception e) {
return false;
}
return true;
}
/**
* Saves a JSON object into class scope Shared Preferences
* @param shared_preferences_key
* @param content
*/
public static void saveSharedPref(String shared_preferences_key, JSONObject content) {
SharedPreferences.Editor shared_preferences_editor = shared_preferences
.edit();
shared_preferences_editor.putString(shared_preferences_key,
content.toString());
shared_preferences_editor.commit();
}
/**
* Saves a String object into class scope Shared Preferences
* @param shared_preferences_key
* @param content
*/
public static void saveSharedPref(String shared_preferences_key, String content) {
SharedPreferences.Editor shared_preferences_editor = shared_preferences
.edit();
shared_preferences_editor.putString(shared_preferences_key,
content);
shared_preferences_editor.commit();
}
/**
* Saves a boolean object into class scope Shared Preferences
* @param shared_preferences_key
* @param content
*/
public static void saveSharedPref(String shared_preferences_key, boolean content) {
SharedPreferences.Editor shared_preferences_editor = shared_preferences
.edit();
shared_preferences_editor.putBoolean(shared_preferences_key, content);
shared_preferences_editor.commit();
}
/**
* Gets String object from class scope Shared Preferences
* @param shared_preferences_key
* @return the string correspondent to the key parameter
*/
public static String getStringFromSharedPref(String shared_preferences_key) {
String content = null;
if ( checkSharedPrefs() ) {
content = shared_preferences.getString(shared_preferences_key, "");
}
return content;
}
/**
* Gets JSON object from class scope Shared Preferences
* @param shared_preferences_key
* @return the JSON object correspondent to the key parameter
*/
public static JSONObject getJsonFromSharedPref(String shared_preferences_key) throws JSONException {
JSONObject content = null;
if ( checkSharedPrefs() ) {
content = new JSONObject( shared_preferences.getString(shared_preferences_key, "") );
}
return content;
}
/*
* This method defaults to false.
* If you use this method, be sure to fail-closed on false!
* TODO This is obviously less than ideal...solve it!
*/
public static boolean getBoolFromSharedPref(String shared_preferences_key) {
boolean value = false;
if ( checkSharedPrefs() ) {
value = shared_preferences.getBoolean(shared_preferences_key, false);
}
return value;
}
/**
* Opens a FileInputStream from the user directory of the external storage directory.
* @param filename
* @return a file input stream
*/
public static FileInputStream openFileInputStream(String filename) {
FileInputStream input_stream = null;
File root = Environment.getExternalStorageDirectory();
File leap_dir = new File(root.getAbsolutePath() + File.separator + USER_DIRECTORY);
try {
input_stream = new FileInputStream(leap_dir + File.separator + filename);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return input_stream;
}
/**
* Sets class scope Shared Preferences
* @param shared_preferences
*/
public static void setSharedPreferences(
SharedPreferences shared_preferences) {
ConfigHelper.shared_preferences = shared_preferences;
}
/**
* Adds a new X509 certificate given its input stream and its provider name
* @param provider used to store the certificate in the keystore
* @param inputStream from which X509 certificate must be generated.
*/
public static void addTrustedCertificate(String provider, InputStream inputStream) {
CertificateFactory cf;
try {
cf = CertificateFactory.getInstance("X.509");
X509Certificate cert =
(X509Certificate)cf.generateCertificate(inputStream);
keystore_trusted.setCertificateEntry(provider, cert);
} catch (CertificateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (KeyStoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Adds a new X509 certificate given in its string from and using its provider name
* @param provider used to store the certificate in the keystore
* @param certificate
*/
public static void addTrustedCertificate(String provider, String certificate) {
String filename_to_save = provider + "_certificate.cer";
CertificateFactory cf;
try {
cf = CertificateFactory.getInstance("X.509");
X509Certificate cert =
(X509Certificate)cf.generateCertificate(openFileInputStream(filename_to_save));
if(keystore_trusted == null) {
keystore_trusted = KeyStore.getInstance("BKS");
keystore_trusted.load(null);
}
keystore_trusted.setCertificateEntry(provider, cert);
} catch (CertificateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (KeyStoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (NoSuchAlgorithmException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* @return class wide keystore
*/
public static KeyStore getKeystore() {
return keystore_trusted;
}
}
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