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mirror of https://github.com/moparisthebest/k-9 synced 2024-11-17 15:05:03 -05:00
k-9/src/com/fsck/k9/preferences/Storage.java
2011-02-26 18:39:06 -06:00

407 lines
14 KiB
Java

package com.fsck.k9.preferences;
import android.content.ContentValues;
import android.content.Context;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteStatement;
import android.util.Log;
import com.fsck.k9.K9;
import com.fsck.k9.helper.Utility;
import java.net.URI;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;
public class Storage implements SharedPreferences {
private static ConcurrentHashMap<Context, Storage> storages =
new ConcurrentHashMap<Context, Storage>();
private volatile ConcurrentHashMap<String, String> storage = new ConcurrentHashMap<String, String>();
private CopyOnWriteArrayList<OnSharedPreferenceChangeListener> listeners =
new CopyOnWriteArrayList<OnSharedPreferenceChangeListener>();
private int DB_VERSION = 2;
private String DB_NAME = "preferences_storage";
private ThreadLocal<ConcurrentHashMap<String, String>> workingStorage
= new ThreadLocal<ConcurrentHashMap<String, String>>();
private ThreadLocal<SQLiteDatabase> workingDB =
new ThreadLocal<SQLiteDatabase>();
private ThreadLocal<ArrayList<String>> workingChangedKeys = new ThreadLocal<ArrayList<String>>();
private Context context = null;
private SQLiteDatabase openDB() {
SQLiteDatabase mDb = context.openOrCreateDatabase(DB_NAME, Context.MODE_PRIVATE, null);
if (mDb.getVersion() == 1) {
Log.i(K9.LOG_TAG, "Updating preferences to urlencoded username/password");
String accountUuids = readValue(mDb, "accountUuids");
if (accountUuids != null && accountUuids.length() != 0) {
String[] uuids = accountUuids.split(",");
for (String uuid : uuids) {
try {
String storeUriStr = Utility.base64Decode(readValue(mDb, uuid + ".storeUri"));
String transportUriStr = Utility.base64Decode(readValue(mDb, uuid + ".transportUri"));
URI uri = new URI(transportUriStr);
String newUserInfo = null;
if (transportUriStr != null) {
String[] userInfoParts = uri.getUserInfo().split(":");
String usernameEnc = URLEncoder.encode(userInfoParts[0], "UTF-8");
String passwordEnc = "";
String authType = "";
if (userInfoParts.length > 1) {
passwordEnc = ":" + URLEncoder.encode(userInfoParts[1], "UTF-8");
}
if (userInfoParts.length > 2) {
authType = ":" + userInfoParts[2];
}
newUserInfo = usernameEnc + passwordEnc + authType;
}
if (newUserInfo != null) {
URI newUri = new URI(uri.getScheme(), newUserInfo, uri.getHost(), uri.getPort(), uri.getPath(), uri.getQuery(), uri.getFragment());
String newTransportUriStr = Utility.base64Encode(newUri.toString());
writeValue(mDb, uuid + ".transportUri", newTransportUriStr);
}
uri = new URI(storeUriStr);
newUserInfo = null;
if (storeUriStr.startsWith("imap")) {
String[] userInfoParts = uri.getUserInfo().split(":");
if (userInfoParts.length == 2) {
String usernameEnc = URLEncoder.encode(userInfoParts[0], "UTF-8");
String passwordEnc = URLEncoder.encode(userInfoParts[1], "UTF-8");
newUserInfo = usernameEnc + ":" + passwordEnc;
} else {
String authType = userInfoParts[0];
String usernameEnc = URLEncoder.encode(userInfoParts[1], "UTF-8");
String passwordEnc = URLEncoder.encode(userInfoParts[2], "UTF-8");
newUserInfo = authType + ":" + usernameEnc + ":" + passwordEnc;
}
} else if (storeUriStr.startsWith("pop3")) {
String[] userInfoParts = uri.getUserInfo().split(":", 2);
String usernameEnc = URLEncoder.encode(userInfoParts[0], "UTF-8");
String passwordEnc = "";
if (userInfoParts.length > 1) {
passwordEnc = ":" + URLEncoder.encode(userInfoParts[1], "UTF-8");
}
newUserInfo = usernameEnc + passwordEnc;
} else if (storeUriStr.startsWith("webdav")) {
String[] userInfoParts = uri.getUserInfo().split(":", 2);
String usernameEnc = URLEncoder.encode(userInfoParts[0], "UTF-8");
String passwordEnc = "";
if (userInfoParts.length > 1) {
passwordEnc = ":" + URLEncoder.encode(userInfoParts[1], "UTF-8");
}
newUserInfo = usernameEnc + passwordEnc;
}
if (newUserInfo != null) {
URI newUri = new URI(uri.getScheme(), newUserInfo, uri.getHost(), uri.getPort(), uri.getPath(), uri.getQuery(), uri.getFragment());
String newStoreUriStr = Utility.base64Encode(newUri.toString());
writeValue(mDb, uuid + ".storeUri", newStoreUriStr);
}
} catch (Exception e) {
Log.e(K9.LOG_TAG, "ooops", e);
}
}
}
mDb.setVersion(DB_VERSION);
}
if (mDb.getVersion() != DB_VERSION) {
Log.i(K9.LOG_TAG, "Creating Storage database");
mDb.execSQL("DROP TABLE IF EXISTS preferences_storage");
mDb.execSQL("CREATE TABLE preferences_storage " +
"(primkey TEXT PRIMARY KEY ON CONFLICT REPLACE, value TEXT)");
mDb.setVersion(DB_VERSION);
}
return mDb;
}
public static Storage getStorage(Context context) {
Storage tmpStorage = storages.get(context);
if (tmpStorage != null) {
if (K9.DEBUG) {
Log.d(K9.LOG_TAG, "Returning already existing Storage");
}
return tmpStorage;
} else {
if (K9.DEBUG) {
Log.d(K9.LOG_TAG, "Creating provisional storage");
}
tmpStorage = new Storage(context);
Storage oldStorage = storages.putIfAbsent(context, tmpStorage);
if (oldStorage != null) {
if (K9.DEBUG) {
Log.d(K9.LOG_TAG, "Another thread beat us to creating the Storage, returning that one");
}
return oldStorage;
} else {
if (K9.DEBUG) {
Log.d(K9.LOG_TAG, "Returning the Storage we created");
}
return tmpStorage;
}
}
}
private void loadValues() {
long startTime = System.currentTimeMillis();
Log.i(K9.LOG_TAG, "Loading preferences from DB into Storage");
Cursor cursor = null;
SQLiteDatabase mDb = null;
try {
mDb = openDB();
cursor = mDb.rawQuery("SELECT primkey, value FROM preferences_storage", null);
while (cursor.moveToNext()) {
String key = cursor.getString(0);
String value = cursor.getString(1);
if (K9.DEBUG) {
Log.d(K9.LOG_TAG, "Loading key '" + key + "', value = '" + value + "'");
}
storage.put(key, value);
}
} finally {
if (cursor != null) {
cursor.close();
}
if (mDb != null) {
mDb.close();
}
long endTime = System.currentTimeMillis();
Log.i(K9.LOG_TAG, "Preferences load took " + (endTime - startTime) + "ms");
}
}
private Storage(Context context) {
this.context = context;
loadValues();
}
private void keyChange(String key) {
ArrayList<String> changedKeys = workingChangedKeys.get();
if (!changedKeys.contains(key)) {
changedKeys.add(key);
}
}
protected void put(String key, String value) {
ContentValues cv = generateCV(key, value);
workingDB.get().insert("preferences_storage", "primkey", cv);
liveUpdate(key, value);
}
protected void put(Map<String, String> insertables) {
String sql = "insert into preferences_storage (primkey, value) VALUES (?, ?)";
SQLiteStatement stmt = workingDB.get().compileStatement(sql);
for (Map.Entry<String, String> entry : insertables.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
stmt.bindString(1, key);
stmt.bindString(2, value);
stmt.execute();
stmt.clearBindings();
liveUpdate(key, value);
}
stmt.close();
}
private ContentValues generateCV(String key, String value) {
ContentValues cv = new ContentValues();
cv.put("primkey", key);
cv.put("value", value);
return cv;
}
private void liveUpdate(String key, String value) {
workingStorage.get().put(key, value);
keyChange(key);
}
protected void remove(String key) {
workingDB.get().delete("preferences_storage", "primkey = ?", new String[] { key });
workingStorage.get().remove(key);
keyChange(key);
}
protected void removeAll() {
for (String key : workingStorage.get().keySet()) {
keyChange(key);
}
workingDB.get().execSQL("DELETE FROM preferences_storage");
workingStorage.get().clear();
}
protected void doInTransaction(Runnable dbWork) {
ConcurrentHashMap<String, String> newStorage = new ConcurrentHashMap<String, String>();
newStorage.putAll(storage);
workingStorage.set(newStorage);
SQLiteDatabase mDb = openDB();
workingDB.set(mDb);
ArrayList<String> changedKeys = new ArrayList<String>();
workingChangedKeys.set(changedKeys);
mDb.beginTransaction();
try {
dbWork.run();
mDb.setTransactionSuccessful();
storage = newStorage;
for (String changedKey : changedKeys) {
for (OnSharedPreferenceChangeListener listener : listeners) {
listener.onSharedPreferenceChanged(this, changedKey);
}
}
} finally {
workingDB.remove();
workingStorage.remove();
workingChangedKeys.remove();
mDb.endTransaction();
mDb.close();
}
}
public long size() {
return storage.size();
}
//@Override
public boolean contains(String key) {
return storage.contains(key);
}
//@Override
public com.fsck.k9.preferences.Editor edit() {
return new com.fsck.k9.preferences.Editor(this);
}
//@Override
public Map<String, String> getAll() {
return storage;
}
//@Override
public boolean getBoolean(String key, boolean defValue) {
String val = storage.get(key);
if (val == null) {
return defValue;
}
return Boolean.parseBoolean(val);
}
//@Override
public float getFloat(String key, float defValue) {
String val = storage.get(key);
if (val == null) {
return defValue;
}
return Float.parseFloat(val);
}
//@Override
public int getInt(String key, int defValue) {
String val = storage.get(key);
if (val == null) {
return defValue;
}
return Integer.parseInt(val);
}
//@Override
public long getLong(String key, long defValue) {
String val = storage.get(key);
if (val == null) {
return defValue;
}
return Long.parseLong(val);
}
//@Override
public String getString(String key, String defValue) {
String val = storage.get(key);
if (val == null) {
return defValue;
}
return val;
}
//@Override
public void registerOnSharedPreferenceChangeListener(
OnSharedPreferenceChangeListener listener) {
listeners.addIfAbsent(listener);
}
//@Override
public void unregisterOnSharedPreferenceChangeListener(
OnSharedPreferenceChangeListener listener) {
listeners.remove(listener);
}
private String readValue(SQLiteDatabase mDb, String key) {
Cursor cursor = null;
String value = null;
try {
cursor = mDb.query(
"preferences_storage",
new String[] {"value"},
"primkey = ?",
new String[] {key},
null,
null,
null);
if (cursor.moveToNext()) {
value = cursor.getString(0);
if (K9.DEBUG) {
Log.d(K9.LOG_TAG, "Loading key '" + key + "', value = '" + value + "'");
}
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return value;
}
private void writeValue(SQLiteDatabase mDb, String key, String value) {
ContentValues cv = new ContentValues();
cv.put("primkey", key);
cv.put("value", value);
long result = mDb.insert("preferences_storage", "primkey", cv);
if (result == -1) {
Log.e(K9.LOG_TAG, "Error writing key '" + key + "', value = '" + value + "'");
}
}
}