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Store token per server Url and handle migration of the previous scala…
…r token
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105 changes: 105 additions & 0 deletions
105
vector/src/main/java/im/vector/widgets/tokens/TokensStore.kt
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| /* | ||
| * Copyright 2019 New Vector Ltd | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| package im.vector.widgets.tokens | ||
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| import android.content.Context | ||
| import android.support.v7.preference.PreferenceManager | ||
| import androidx.core.content.edit | ||
| import org.matrix.androidsdk.core.JsonUtils | ||
|
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| class TokensStore(context: Context) { | ||
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| private val prefs = PreferenceManager.getDefaultSharedPreferences(context) | ||
| private val gson = JsonUtils.getBasicGson() | ||
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| private data class TokensStore( | ||
| // Keys are user Id | ||
| @JvmField | ||
| val userToServerTokens: MutableMap<String, ServerTokens> = mutableMapOf() | ||
| ) | ||
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| private data class ServerTokens( | ||
| // Keys are server Url, values are token | ||
| @JvmField | ||
| val serverTokens: MutableMap<String, String> = mutableMapOf() | ||
| ) | ||
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| fun getToken(userId: String, serverUrl: String): String? { | ||
| handleMigration(userId) | ||
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| return readStore() | ||
| .userToServerTokens[userId] | ||
| ?.serverTokens | ||
| ?.get(serverUrl) | ||
| } | ||
|
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| private fun handleMigration(userId: String) { | ||
| val prefKey = SCALAR_TOKEN_LEGACY_PREFERENCE_KEY + userId | ||
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| val previousStoredToken = prefs.getString(prefKey, null) | ||
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| if (!previousStoredToken.isNullOrBlank()) { | ||
| // It was maybe a token for scalar.vector.im. If it is not the case, it will be invalid and will be replaced. | ||
| setToken(userId, "https://scalar.vector.im/api", previousStoredToken) | ||
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| prefs.edit { | ||
| remove(prefKey) | ||
| } | ||
| } | ||
| } | ||
|
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| fun setToken(userId: String, serverUrl: String, token: String) { | ||
| readStore() | ||
| .apply { | ||
| userToServerTokens.getOrPut(userId) { ServerTokens() } | ||
| .serverTokens[serverUrl] = token | ||
| } | ||
| .commit() | ||
| } | ||
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| private fun readStore(): TokensStore { | ||
| return prefs.getString(SCALAR_TOKENS_PREFERENCE_KEY, null) | ||
| ?.toModel() | ||
| ?: TokensStore() | ||
| } | ||
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| private fun TokensStore.commit() { | ||
| prefs.edit { | ||
| putString(SCALAR_TOKENS_PREFERENCE_KEY, this@commit.fromModel()) | ||
| } | ||
| } | ||
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| fun clear() { | ||
| prefs.edit { | ||
| remove(SCALAR_TOKENS_PREFERENCE_KEY) | ||
| } | ||
| } | ||
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| private fun String.toModel(): TokensStore? { | ||
| return gson.fromJson<TokensStore>(this, TokensStore::class.java) | ||
| } | ||
|
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| private fun TokensStore.fromModel(): String? { | ||
| return gson.toJson(this) | ||
| } | ||
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| companion object { | ||
| private const val SCALAR_TOKEN_LEGACY_PREFERENCE_KEY = "SCALAR_TOKEN_PREFERENCE_KEY" | ||
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| private const val SCALAR_TOKENS_PREFERENCE_KEY = "SCALAR_TOKENS_PREFERENCE_KEY" | ||
| } | ||
| } |