Static helper class for accessing the Telegram account status. @author cinit
| 11 | * @author cinit |
| 12 | */ |
| 13 | public class AccountController { |
| 14 | private AccountController() { |
| 15 | throw new AssertionError("no instance for you"); |
| 16 | } |
| 17 | |
| 18 | /** |
| 19 | * Get the user id for the current active account slot. |
| 20 | * |
| 21 | * @param slot the account slot, non-negative |
| 22 | * @return the user id, or 0 if the slot is not logged in, or exception occurs |
| 23 | * @throws IllegalArgumentException if the slot is invalid |
| 24 | */ |
| 25 | public static long getUserIdForSlot(int slot) { |
| 26 | if (slot < 0 || slot > 32767) { |
| 27 | throw new IllegalArgumentException("invalid slot: " + slot); |
| 28 | } |
| 29 | Class<?> kUserConfig = ClassLocator.getUserConfigClass(); |
| 30 | if (kUserConfig == null) { |
| 31 | Utils.loge("getUserIdForSlot but UserConfig.class is null"); |
| 32 | return 0; |
| 33 | } |
| 34 | try { |
| 35 | Object userConfig = kUserConfig.getMethod("getInstance", int.class).invoke(null, slot); |
| 36 | return kUserConfig.getField("clientUserId").getLong(userConfig); |
| 37 | } catch (IllegalAccessException e) { |
| 38 | // should not happen |
| 39 | throw new LinkageError("unable to access UserConfig.getInstance(I).clientUserId", e); |
| 40 | } catch (NoSuchMethodException | NoSuchFieldException | InvocationTargetException e) { |
| 41 | Utils.loge(e); |
| 42 | } |
| 43 | return 0; |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * Get the current active account slot. |
| 48 | * Notice that Telegram DOES support multiple accounts and the ongoing transaction may NOT always be the active one. |
| 49 | * AVOID USE THIS METHOD OR USE WITH CAUTION. |
| 50 | * |
| 51 | * @return the current active account slot, or -1 if exception occurs |
| 52 | * @see #getUserIdForSlot(int) |
| 53 | */ |
| 54 | public static int getCurrentActiveSlot() { |
| 55 | Class<?> kUserConfig = ClassLocator.getUserConfigClass(); |
| 56 | if (kUserConfig == null) { |
| 57 | Utils.loge("getCurrentActiveSlot but UserConfig.class is null"); |
| 58 | return -1; |
| 59 | } |
| 60 | try { |
| 61 | return kUserConfig.getDeclaredField("selectedAccount").getInt(null); |
| 62 | } catch (IllegalAccessException e) { |
| 63 | // should not happen |
| 64 | throw new LinkageError("unable to access UserConfig.selectedAccount", e); |
| 65 | } catch (NoSuchFieldException e) { |
| 66 | Utils.loge(e); |
| 67 | } |
| 68 | return -1; |
| 69 | } |
| 70 |
nothing calls this directly
no outgoing calls
no test coverage detected