public PermissionInfo getPermissionInfo(String name, int flags) throws RemoteException {
    waitForReadyInner();
    try {
        enforcePluginFileExists();
        if (shouldNotBlockOtherInfo()) {
            for (PluginPackageParser pluginPackageParser : this.mPluginCache.values()) {
                for (PermissionInfo permissionInfo : pluginPackageParser.getPermissions()) {
                    if (TextUtils.equals(permissionInfo.name, name)) {
                        return permissionInfo;
                    }
                }
            }
        }
        List<String> pkgs = this.mActivityManagerService.getPackageNamesByPid(Binder.getCallingPid());
        for (PluginPackageParser pluginPackageParser2 : this.mPluginCache.values()) {
            for (PermissionInfo permissionInfo2 : pluginPackageParser2.getPermissions()) {
                if (TextUtils.equals(permissionInfo2.name, name) && pkgs.contains(permissionInfo2.packageName)) {
                    return permissionInfo2;
                }
            }
        }
    } catch (Exception e) {
        handleException(e);
    }
    return null;
}
 

@Override
@SuppressWarnings("unchecked")
public List<PermissionInfo> queryPermissionsByGroup(String group, int flags)
        throws NameNotFoundException {
    try {
        ParceledListSlice<PermissionInfo> parceledList =
                mPM.queryPermissionsByGroup(group, flags);
        if (parceledList != null) {
            List<PermissionInfo> pi = parceledList.getList();
            if (pi != null) {
                return pi;
            }
        }
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }

    throw new NameNotFoundException(group);
}
 

@Test
public void ensureRequiredPermissions_ifPermissionIsDangerousAndPermissionGrantStateIsAlreadySet_shouldReturnTrue() {
  addPermissionInfo(DANGEROUS_PERMISSION, PermissionInfo.PROTECTION_DANGEROUS);
  shadowOf(mDevicePolicyManager).setProfileOwner(TESTDPC_ADMIN);
  mDevicePolicyManager.setPermissionGrantState(
      TESTDPC_ADMIN,
      mContext.getPackageName(),
      DANGEROUS_PERMISSION,
      DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);

  boolean requiredPermissionsGranted = PermissionsHelper
      .ensureRequiredPermissions(new String[]{DANGEROUS_PERMISSION}, TESTDPC_ADMIN, mContext);

  assertTrue(requiredPermissionsGranted);
  assertThat(mDevicePolicyManager
      .getPermissionGrantState(TESTDPC_ADMIN, mContext.getPackageName(), DANGEROUS_PERMISSION))
      .isEqualTo(DevicePolicyManager.PERMISSION_GRANT_STATE_GRANTED);
}
 

@TargetApi(23)
private boolean isDisplayablePermission(PermissionInfo pInfo, int existingReqFlags) {
    final int base = pInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
    final boolean isNormal = base == PermissionInfo.PROTECTION_NORMAL;
    final boolean isDangerous = base == PermissionInfo.PROTECTION_DANGEROUS
            || ((pInfo.protectionLevel & PermissionInfo.PROTECTION_FLAG_PRE23) != 0);

    // Dangerous and normal permissions are always shown to the user
    // this is matches the permission list in AppDetailsActivity
    if (isNormal || isDangerous) {
        return true;
    }

    final boolean isDevelopment = (pInfo.protectionLevel & PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0;
    final boolean wasGranted = (existingReqFlags & PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0;

    // Development permissions are only shown to the user if they are already
    // granted to the app -- if we are installing an app and they are not
    // already granted, they will not be granted as part of the install.
    return isDevelopment && wasGranted;
}
 

private void doPermissionCheck(Context context, ResultCollector collector, final String permission) {
    PackageManager pm = context.getPackageManager();
    try {
        PermissionInfo info = pm.getPermissionInfo(permission, 0);
        PermissionGroupInfo groupInfo = info.group != null ? pm.getPermissionGroupInfo(info.group, 0) : null;
        CharSequence permLabel = info.loadLabel(pm);
        CharSequence groupLabel = groupInfo != null ? groupInfo.loadLabel(pm) : permLabel;
        collector.addResult(context.getString(R.string.self_check_name_permission, permLabel),
                context.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED ? Positive : Negative,
                context.getString(R.string.self_check_resolution_permission, groupLabel),
                new SelfCheckGroup.CheckResolver() {

                    @Override
                    public void tryResolve(Fragment fragment) {
                        fragment.requestPermissions(new String[]{permission}, 0);
                    }
                });
    } catch (PackageManager.NameNotFoundException e) {
        Log.w(TAG, e);
    }
}
 

static void hasDefinePermission(Context context) {
    try {
        String packName = context.getPackageName();
        String perm = packName.concat(".permission.ONE_KEY_PERM");
        PackageManager pm = context.getPackageManager();

        PackageInfo pi = pm.getPackageInfo(context.getPackageName(), PackageManager.GET_PERMISSIONS);

        if (pi.permissions == null) {
            log(packName);
            return;
        }
        for (PermissionInfo permission : pi.permissions) {
            if (perm.equals(permission.name)
                    && permission.protectionLevel == PROTECTION_SIGNATURE
                    && ContextCompat.checkSelfPermission(context, perm) == PackageManager.PERMISSION_GRANTED) {
                return;
            }
        }
        log(packName);
    } catch (Exception e) {
        e.printStackTrace();
    }


}
 

public void updateDynamicPermission(Collection<BasePermission> permissionTrees) {
    if (PackageManagerService.DEBUG_SETTINGS) Log.v(TAG, "Dynamic permission: name="
            + getName() + " pkg=" + getSourcePackageName()
            + " info=" + pendingPermissionInfo);
    if (sourcePackageSetting == null && pendingPermissionInfo != null) {
        final BasePermission tree = findPermissionTree(permissionTrees, name);
        if (tree != null && tree.perm != null) {
            sourcePackageSetting = tree.sourcePackageSetting;
            perm = new PackageParser.Permission(tree.perm.owner,
                    new PermissionInfo(pendingPermissionInfo));
            perm.info.packageName = tree.perm.info.packageName;
            perm.info.name = name;
            uid = tree.uid;
        }
    }
}
 

private PermissionInfo getPermissionInfo(String permName, String packageName, int flags,
        int callingUid) {
    if (mPackageManagerInt.getInstantAppPackageName(callingUid) != null) {
        return null;
    }
    // reader
    synchronized (mLock) {
        final BasePermission bp = mSettings.getPermissionLocked(permName);
        if (bp == null) {
            return null;
        }
        final int adjustedProtectionLevel = adjustPermissionProtectionFlagsLocked(
                bp.getProtectionLevel(), packageName, callingUid);
        return bp.generatePermissionInfo(adjustedProtectionLevel, flags);
    }
}
 

/**
 * Return true if all given permissions are signature-only perms.
 */
final boolean isSignaturePerm(String[] perms) {
    if (perms == null) {
        return false;
    }
    IPackageManager pm = AppGlobals.getPackageManager();
    for (int i = perms.length-1; i >= 0; i--) {
        try {
            PermissionInfo pi = pm.getPermissionInfo(perms[i], "android", 0);
            if ((pi.protectionLevel & (PermissionInfo.PROTECTION_MASK_BASE
                    | PermissionInfo.PROTECTION_FLAG_PRIVILEGED))
                    != PermissionInfo.PROTECTION_SIGNATURE) {
                // If this a signature permission and NOT allowed for privileged apps, it
                // is okay...  otherwise, nope!
                return false;
            }
        } catch (RemoteException e) {
            return false;
        }
    }
    return true;
}
 

@Override
public PermissionInfo getPermissionInfo(String name, int flags)
        throws NameNotFoundException {
    try {
        PermissionInfo pi = mPM.getPermissionInfo(name, flags);
        if (pi != null) {
            return pi;
        }
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }

    throw new NameNotFoundException(name);
}
 

private void askForPermission() {
    if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
        // Should we show an explanation?
        if (shouldShowRequestPermissionRationale(Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
            String name;
            try {
                PackageManager pm = getPackageManager();
                PermissionInfo permissionInfo = pm.getPermissionInfo(Manifest.permission.WRITE_EXTERNAL_STORAGE, PackageManager.GET_META_DATA);
                name = (String) permissionInfo.loadLabel(pm);
            } catch (PackageManager.NameNotFoundException e) {
                logger.error("Failed to obtain name for permission", e);
                name = "read external storage";
            }
            new AlertDialog.Builder(this)
                    .setMessage(getString(R.string.msgWriteExternalStorageRationale, name))
                    .setPositiveButton(R.string.ok, (dialog, which) -> requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE))
                    .setNegativeButton(R.string.cancel, (dialog, which) -> finish())
                    .create()
                    .show();
        } else {
            requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSIONS_REQUEST_WRITE_EXTERNAL_STORAGE);
        }

    } else {
        mDataMoveFragment.startDataMove();
    }
}
 

@Override
public boolean addPermission(PermissionInfo info) {
    try {
        return mPM.addPermission(info);
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
}
 

@Override
public boolean addPermissionAsync(PermissionInfo info) {
    try {
        return mPM.addPermissionAsync(info);
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
}
 

@Override
public boolean addPermission(PermissionInfo info) {
    try {
        return mPM.addPermission(info);
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
}
 

@Override
public boolean addPermissionAsync(PermissionInfo info) {
    try {
        return mPM.addPermissionAsync(info);
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
}
 

@Override
public PermissionInfo getPermissionInfo(String name, int flags)
        throws NameNotFoundException {
    try {
        PermissionInfo pi = mPM.getPermissionInfo(name, flags);
        if (pi != null) {
            return pi;
        }
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }

    throw new NameNotFoundException(name);
}
 

@Override
public List<PermissionInfo> queryPermissionsByGroup(String group, int flags)
        throws NameNotFoundException {
    try {
        List<PermissionInfo> pi = mPM.queryPermissionsByGroup(group, flags);
        if (pi != null) {
            return pi;
        }
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }

    throw new NameNotFoundException(group);
}
 

@Override
public boolean addPermission(PermissionInfo info) {
    try {
        return mPM.addPermission(info);
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }
}
 

private static OpEntryInfo opEntry2Info(OpEntry op, Context context, PackageManager pm) {
  OpEntryInfo opEntryInfo = new OpEntryInfo(op);
  if (OtherOp.isOtherOp(op.getOp())) {
    opEntryInfo.opName = OtherOp.getOpName(op.getOp());
    opEntryInfo.opPermsName = OtherOp.getOpPermName(op.getOp());
  }
  if (opEntryInfo.opName != null) {
    try {
      if (!OtherOp.isOtherOp(op.getOp())) {
        PermissionInfo permissionInfo = pm.getPermissionInfo(opEntryInfo.opPermsName, 0);
        opEntryInfo.opPermsLab = String.valueOf(permissionInfo.loadLabel(pm));
        opEntryInfo.opPermsDesc = String.valueOf(permissionInfo.loadDescription(pm));
      }
    } catch (PackageManager.NameNotFoundException e) {
      //ignore
    }

    if (opEntryInfo.opPermsLab == null) {
      Integer resId = sPermI18N.get(opEntryInfo.opName);
      if (resId != null) {
        opEntryInfo.opPermsLab = context.getString(resId);
        opEntryInfo.opPermsDesc = opEntryInfo.opName;
      }
    }

    return opEntryInfo;
  }
  return null;
}
 

@Override
public PermissionInfo generatePermissionInfo(
        Object permission, int flags) throws Exception {
    /*public static final PermissionInfo generatePermissionInfo(
        Permission p, int flags)*/
    Method method = MethodUtils.getAccessibleMethod(sPackageParserClass, "generatePermissionInfo", sPermissionClass, int.class);
    return (PermissionInfo) method.invoke(null, permission, flags);
}
 

private boolean isDisplayablePermission(PermissionInfo pInfo, int newReqFlags,
        int existingReqFlags) {
    final int base = pInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE;
    final boolean isNormal = (base == PermissionInfo.PROTECTION_NORMAL);

    // We do not show normal permissions in the UI.
    if (isNormal) {
        return false;
    }

    final boolean isDangerous = (base == PermissionInfo.PROTECTION_DANGEROUS)
            || ((pInfo.protectionLevel&PermissionInfo.PROTECTION_FLAG_PRE23) != 0);
    final boolean isRequired =
            ((newReqFlags&PackageInfo.REQUESTED_PERMISSION_REQUIRED) != 0);
    final boolean isDevelopment =
            ((pInfo.protectionLevel&PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0);
    final boolean wasGranted =
            ((existingReqFlags&PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0);
    final boolean isGranted =
            ((newReqFlags&PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0);

    // Dangerous and normal permissions are always shown to the user if the permission
    // is required, or it was previously granted
    if (isDangerous && (isRequired || wasGranted || isGranted)) {
        return true;
    }

    // Development permissions are only shown to the user if they are already
    // granted to the app -- if we are installing an app and they are not
    // already granted, they will not be granted as part of the install.
    if (isDevelopment && wasGranted) {
        if (localLOGV) Log.i(TAG, "Special perm " + pInfo.name
                + ": protlevel=0x" + Integer.toHexString(pInfo.protectionLevel));
        return true;
    }
    return false;
}
 

@Override
public PermissionInfo generatePermissionInfo(
        Object permission, int flags) throws Exception {
    /*  public static final PermissionInfo generatePermissionInfo(
        Permission p, int flags) */
    return super.generatePermissionInfo(permission, flags);
}
 

@Override
public List<PermissionInfo> queryPermissionsByGroup(String group, int flags)
        throws NameNotFoundException {
    try {
        List<PermissionInfo> pi = mPM.queryPermissionsByGroup(group, flags);
        if (pi != null) {
            return pi;
        }
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }

    throw new NameNotFoundException(group);
}
 

@Override
public boolean addPermissionAsync(PermissionInfo info) {
    try {
        return mPM.addPermissionAsync(info);
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }
}
 

private static boolean isPermissionDangerous(String permission, Context context) {
  PermissionInfo permissionInfo;
  try {
    permissionInfo = context.getPackageManager().getPermissionInfo(permission, 0);
  } catch (NameNotFoundException e) {
    Log.e(TAG, "Failed to look up permission.", e);
    return false;
  }
  return permissionInfo != null
      && (permissionInfo.protectionLevel & PermissionInfo.PROTECTION_MASK_BASE)
      == PermissionInfo.PROTECTION_DANGEROUS;
}
 

@Override
public boolean addPermission(PermissionInfo info) {
    try {
        return mPM.addPermission(info);
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }
}
 

@Override
public boolean addPermissionAsync(PermissionInfo info) {
    try {
        return mPM.addPermissionAsync(info);
    } catch (RemoteException e) {
        throw new RuntimeException("Package manager has died", e);
    }
}
 

@Test
public void ensureRequiredPermissions_ifAtLeastOnePermissionNotGranted_shouldReturnFalse() {
  addPermissionInfo(NORMAL_PERMISSION, PermissionInfo.PROTECTION_NORMAL);
  addPermissionInfo(DANGEROUS_PERMISSION, PermissionInfo.PROTECTION_DANGEROUS);
  shadowOf(mDevicePolicyManager).setProfileOwner(NON_TESTDPC_ADMIN);

  boolean requiredPermissionsGranted = PermissionsHelper
      .ensureRequiredPermissions(new String[]{NORMAL_PERMISSION, DANGEROUS_PERMISSION},
          NON_TESTDPC_ADMIN, mContext);

  assertFalse(requiredPermissionsGranted);
}
 

@Override
public boolean addPermission(PermissionInfo info) {
    try {
        return mPM.addPermission(info);
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
}
 

/**
 * Check if the installed Gmail app supports querying for label information.
 *
 * @param c an application Context
 * @return true if it's safe to make label API queries
 */
public static boolean canReadLabels(Context c) {
    boolean supported = false;

    try {
        final PackageInfo info = c.getPackageManager().getPackageInfo(PACKAGE,
                PackageManager.GET_PROVIDERS | PackageManager.GET_PERMISSIONS);
        boolean allowRead = false;
        if (info.permissions != null) {
            for (int i = 0, len = info.permissions.length; i < len; i++) {
                final PermissionInfo perm = info.permissions[i];
                if (PERMISSION.equals(perm.name)
                        && perm.protectionLevel < PermissionInfo.PROTECTION_SIGNATURE) {
                    allowRead = true;
                    break;
                }
            }
        }
        if (allowRead && info.providers != null) {
            for (int i = 0, len = info.providers.length; i < len; i++) {
                final ProviderInfo provider = info.providers[i];
                if (AUTHORITY.equals(provider.authority) &&
                        TextUtils.equals(PERMISSION, provider.readPermission)) {
                    supported = true;
                }
            }
        }
    } catch (NameNotFoundException e) {
        // Gmail app not found
    }
    return supported;
}