mirror of https://github.com/MISP/misp-bump
472 lines
16 KiB
Java
472 lines
16 KiB
Java
package lu.circl.mispbump.auxiliary;
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import android.content.Context;
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import android.content.SharedPreferences;
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import com.google.gson.Gson;
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import com.google.gson.reflect.TypeToken;
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import java.lang.reflect.Type;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.UUID;
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import javax.crypto.BadPaddingException;
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import javax.crypto.IllegalBlockSizeException;
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import javax.crypto.NoSuchPaddingException;
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import lu.circl.mispbump.models.UploadInformation;
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import lu.circl.mispbump.models.restModels.Organisation;
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import lu.circl.mispbump.models.restModels.Role;
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import lu.circl.mispbump.models.restModels.User;
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import lu.circl.mispbump.security.KeyStoreWrapper;
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public class PreferenceManager {
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private static final String PREFERENCES_FILE = "user_settings";
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private static final String SERVER_URL = "server_url";
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private static final String AUTOMATION_KEY = "user_automation";
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private static final String USER_INFOS = "user_infos";
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private static final String USER_ORG_INFOS = "user_org_infos";
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private static final String UPLOAD_INFO = "upload_info";
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private static final String MISP_ROLES = "misp_roles";
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private SharedPreferences preferences;
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private static PreferenceManager instance;
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private PreferenceManager(Context context) {
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preferences = context.getSharedPreferences(PREFERENCES_FILE, Context.MODE_PRIVATE);
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}
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/**
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* Helper class to save and retrieve (sensitive) information to and from SharedPreferences.
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*
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* @param context for accessing the SharedPreferences file.
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* @return singleton instance
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*/
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public static PreferenceManager getInstance(Context context) {
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if (instance == null) {
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instance = new PreferenceManager(context);
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}
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return instance;
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}
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/**
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* Save downloaded MISP roles on device.
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* @param roles {@link Role}
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*/
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public void setRoles(Role[] roles) {
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SharedPreferences.Editor editor = preferences.edit();
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editor.putString(MISP_ROLES, new Gson().toJson(roles));
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editor.apply();
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}
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/**
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* Gets downloaded and saved MISP roles if available.
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* <p/>
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* Roles are downloaded on login and updated with each profile update.
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*
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* @return {@link Role}[] or null
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*/
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public Role[] getRoles() {
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Type type = new TypeToken<Role[]>() {}.getType();
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String rolesString = preferences.getString(MISP_ROLES, "");
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assert rolesString != null;
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if (rolesString.isEmpty()) {
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return null;
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} else {
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return new Gson().fromJson(rolesString, type);
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}
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}
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/**
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* Saves user infos from "users/view/me" (encrypted)
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*
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* @param user {@link User}
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*/
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public void setUserInfo(User user) {
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try {
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String userStr = new Gson().toJson(user);
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.USER_INFO_ALIAS);
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String encryptedUserInfo = keyStoreWrapper.encrypt(userStr);
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SharedPreferences.Editor editor = preferences.edit();
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editor.putString(USER_INFOS, encryptedUserInfo);
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editor.apply();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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}
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/**
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* Returns the user information if already stored and decrypts it.
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*
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* @return decrypted user info if any, else null
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*/
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public User getUserInfo() {
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if (!preferences.contains(USER_INFOS)) {
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return null;
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}
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try {
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.USER_INFO_ALIAS);
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String decrypted = keyStoreWrapper.decrypt(preferences.getString(USER_INFOS, ""));
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return new Gson().fromJson(decrypted, User.class);
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidAlgorithmParameterException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* Save user org infos from "organisations/view/{orgId}" (encrypted)
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*
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* @param organisation Object representation of json organisation information
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*/
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public void setUserOrgInfo(Organisation organisation) {
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try {
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String orgStr = new Gson().toJson(organisation);
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.USER_ORGANISATION_INFO_ALIAS);
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String encrypted = keyStoreWrapper.encrypt(orgStr);
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SharedPreferences.Editor editor = preferences.edit();
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editor.putString(USER_ORG_INFOS, encrypted);
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editor.apply();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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}
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/**
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* Returns the user organisation information if already stored and decrypts it.
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*
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* @return decrypted user org info if any, else null
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*/
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public Organisation getUserOrganisation() {
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if (!preferences.contains(USER_ORG_INFOS)) {
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return null;
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}
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try {
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.USER_ORGANISATION_INFO_ALIAS);
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String decrypted = keyStoreWrapper.decrypt(preferences.getString(USER_ORG_INFOS, ""));
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return new Gson().fromJson(decrypted, Organisation.class);
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidAlgorithmParameterException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* Encrypts the automation key and stores it in preferences.
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*
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* @param automationKey key entered in {@link lu.circl.mispbump.activities.LoginActivity}
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*/
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public void setAutomationKey(String automationKey) {
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try {
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.AUTOMATION_ALIAS);
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SharedPreferences.Editor editor = preferences.edit();
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editor.putString(AUTOMATION_KEY, keyStoreWrapper.encrypt(automationKey));
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editor.apply();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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}
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/**
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* Decrypts the stored automation key and returns it.
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*
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* @return decrypted automation key associated with the current user. If no user exists an empty
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* String is returned.
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*/
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public String getAuthKey() {
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if (!preferences.contains(AUTOMATION_KEY)) {
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return "";
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}
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try {
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.AUTOMATION_ALIAS);
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return keyStoreWrapper.decrypt(preferences.getString(AUTOMATION_KEY, ""));
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (InvalidAlgorithmParameterException e) {
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e.printStackTrace();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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return "";
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}
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/**
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* Delete the key to decrypt this entry and the entry itself.
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*/
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public void clearAutomationKey() {
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// remove the key from KeyStore
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.AUTOMATION_ALIAS);
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keyStoreWrapper.deleteStoredKey();
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SharedPreferences.Editor editor = preferences.edit();
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editor.remove(AUTOMATION_KEY);
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editor.apply();
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}
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/**
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* Encrypts the server url and stores it in preferences.
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*
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* @param serverUrl url of the corresponding misp instance
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*/
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public void setServerUrl(String serverUrl) {
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try {
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.SERVER_URL_ALIAS);
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SharedPreferences.Editor editor = preferences.edit();
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editor.putString(SERVER_URL, keyStoreWrapper.encrypt(serverUrl));
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editor.apply();
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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}
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/**
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* Decrypts the stored server url and returns it
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*
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* @return decrypted misp instance url
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*/
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public String getServerUrl() {
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if (!preferences.contains(SERVER_URL)) {
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return null;
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}
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try {
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.SERVER_URL_ALIAS);
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return keyStoreWrapper.decrypt(preferences.getString(SERVER_URL, null));
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} catch (NoSuchPaddingException e) {
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e.printStackTrace();
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (InvalidAlgorithmParameterException e) {
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e.printStackTrace();
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} catch (InvalidKeyException e) {
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e.printStackTrace();
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} catch (BadPaddingException e) {
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e.printStackTrace();
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} catch (IllegalBlockSizeException e) {
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e.printStackTrace();
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}
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return null;
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}
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/**
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* Delete the key to decrypt this entry and the entry itself.
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*/
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public void clearServerUrl() {
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// remove the key from KeyStore
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.SERVER_URL_ALIAS);
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keyStoreWrapper.deleteStoredKey();
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SharedPreferences.Editor editor = preferences.edit();
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editor.remove(SERVER_URL);
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editor.apply();
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}
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private List<UploadInformation> cachedUploadInformationList;
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private void loadUploadInformationList() {
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KeyStoreWrapper ksw = new KeyStoreWrapper(KeyStoreWrapper.UPLOAD_INFORMATION_ALIAS);
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String storedUploadInfoString = preferences.getString(UPLOAD_INFO, null);
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Type type = new TypeToken<List<UploadInformation>>() {}.getType();
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if (storedUploadInfoString == null || storedUploadInfoString.isEmpty()) {
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cachedUploadInformationList = new ArrayList<>();
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} else {
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try {
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storedUploadInfoString = ksw.decrypt(storedUploadInfoString);
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cachedUploadInformationList = new Gson().fromJson(storedUploadInfoString, type);
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} catch (IllegalBlockSizeException | BadPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | NoSuchPaddingException | NoSuchAlgorithmException e) {
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e.printStackTrace();
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}
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}
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}
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private void saveUploadInformationList() {
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try {
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KeyStoreWrapper ksw = new KeyStoreWrapper(KeyStoreWrapper.UPLOAD_INFORMATION_ALIAS);
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String cipherText = ksw.encrypt(new Gson().toJson(cachedUploadInformationList));
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SharedPreferences.Editor editor = preferences.edit();
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editor.putString(UPLOAD_INFO, cipherText);
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editor.apply();
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} catch (IllegalBlockSizeException | BadPaddingException | InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException e) {
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e.printStackTrace();
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}
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}
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public List<UploadInformation> getUploadInformationList() {
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if (cachedUploadInformationList == null) {
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loadUploadInformationList();
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}
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return cachedUploadInformationList;
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}
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public void setUploadInformationList(List<UploadInformation> uploadInformationList) {
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cachedUploadInformationList = uploadInformationList;
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saveUploadInformationList();
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}
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public UploadInformation getUploadInformation(UUID uuid) {
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if (cachedUploadInformationList == null) {
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loadUploadInformationList();
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}
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for (UploadInformation ui : cachedUploadInformationList) {
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if (ui.getUuid().compareTo(uuid) == 0) {
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return ui;
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}
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}
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return null;
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}
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public void addUploadInformation(UploadInformation uploadInformation) {
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if (cachedUploadInformationList == null) {
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loadUploadInformationList();
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}
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// update if exists
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for (int i = 0; i < cachedUploadInformationList.size(); i++) {
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if (cachedUploadInformationList.get(i).getUuid().compareTo(uploadInformation.getUuid()) == 0) {
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cachedUploadInformationList.set(i, uploadInformation);
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saveUploadInformationList();
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return;
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}
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}
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// else: add
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cachedUploadInformationList.add(uploadInformation);
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saveUploadInformationList();
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}
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public void removeUploadInformation(UUID uuid) {
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if (cachedUploadInformationList == null) {
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loadUploadInformationList();
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}
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for (UploadInformation ui : cachedUploadInformationList) {
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if (ui.getUuid().compareTo(uuid) == 0) {
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// if is last element, then clear everything including IV and key in KeyStore
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if (cachedUploadInformationList.size() == 1) {
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clearUploadInformation();
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} else {
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cachedUploadInformationList.remove(ui);
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saveUploadInformationList();
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}
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}
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}
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}
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public void clearUploadInformation() {
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cachedUploadInformationList.clear();
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KeyStoreWrapper keyStoreWrapper = new KeyStoreWrapper(KeyStoreWrapper.UPLOAD_INFORMATION_ALIAS);
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keyStoreWrapper.deleteStoredKey();
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SharedPreferences.Editor editor = preferences.edit();
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editor.remove(UPLOAD_INFO);
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editor.apply();
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}
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public void clearAllData() {
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SharedPreferences.Editor editor = preferences.edit();
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clearServerUrl();
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clearAutomationKey();
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clearUploadInformation();
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editor.clear();
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editor.apply();
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}
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} |