diff options
Diffstat (limited to 'core/src/main/java/foundation/e/advancedprivacy/externalinterfaces/permissions/PermissionsPrivacyModuleBase.kt')
-rw-r--r-- | core/src/main/java/foundation/e/advancedprivacy/externalinterfaces/permissions/PermissionsPrivacyModuleBase.kt | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/core/src/main/java/foundation/e/advancedprivacy/externalinterfaces/permissions/PermissionsPrivacyModuleBase.kt b/core/src/main/java/foundation/e/advancedprivacy/externalinterfaces/permissions/PermissionsPrivacyModuleBase.kt new file mode 100644 index 0000000..27ba17f --- /dev/null +++ b/core/src/main/java/foundation/e/advancedprivacy/externalinterfaces/permissions/PermissionsPrivacyModuleBase.kt @@ -0,0 +1,160 @@ +/* + * Copyright (C) 2022 - 2023 MURENA SAS + * Copyright (C) 2021 E FOUNDATION + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +package foundation.e.advancedprivacy.externalinterfaces.permissions + +import android.app.AppOpsManager +import android.content.Context +import android.content.pm.ApplicationInfo +import android.content.pm.PackageManager +import android.content.pm.PermissionInfo +import android.content.pm.PermissionInfo.PROTECTION_DANGEROUS +import android.graphics.drawable.Drawable +import android.os.Build +import android.util.Log +import foundation.e.advancedprivacy.domain.entities.AppOpModes +import foundation.e.advancedprivacy.domain.entities.ApplicationDescription +import foundation.e.advancedprivacy.domain.entities.PermissionDescription +import foundation.e.advancedprivacy.domain.entities.ProfileType + +/** + * Implementation of the commons functionality between privileged and standard + * versions of the module. + * @param context an Android context, to retrieve packageManager for example. + */ +abstract class PermissionsPrivacyModuleBase(protected val context: Context) : IPermissionsPrivacyModule { + + companion object { + private const val TAG = "PermissionsModule" + } + + /** + * @see IPermissionsPrivacyModule.getInstalledApplications + */ + override fun getApplicationDescription(packageName: String, withIcon: Boolean): ApplicationDescription { + val appDesc = buildApplicationDescription(context.packageManager.getApplicationInfo(packageName, 0)) + if (withIcon) { + appDesc.icon = getApplicationIcon(appDesc.packageName) + } + return appDesc + } + + /** + * * @see IPermissionsPrivacyModule.getPermissions + */ + override fun getPermissions(packageName: String): List<String> { + val packageInfo = context.packageManager.getPackageInfo(packageName, PackageManager.GET_PERMISSIONS) + return packageInfo.requestedPermissions?.asList() ?: emptyList() + } + + override fun getPermissionDescription(permissionName: String): PermissionDescription { + val info = context.packageManager.getPermissionInfo(permissionName, 0) + return PermissionDescription( + name = permissionName, + isDangerous = isPermissionsDangerous(info), + group = null, + label = info.loadLabel(context.packageManager), + description = info.loadDescription(context.packageManager) + ) + } + + /** + * @see IPermissionsPrivacyModule.isDangerousPermissionGranted + */ + override fun isDangerousPermissionGranted(packageName: String, permissionName: String): Boolean { + return context.packageManager + .checkPermission(permissionName, packageName) == PackageManager.PERMISSION_GRANTED + } + + // on google version, work only for the current package. + @Suppress("DEPRECATION") + override fun getAppOpMode( + appDesc: ApplicationDescription, + appOpPermissionName: String + ): AppOpModes { + + val appOps = context.getSystemService(Context.APP_OPS_SERVICE) as AppOpsManager + + val mode = if (Build.VERSION.SDK_INT < Build.VERSION_CODES.Q) { + appOps.checkOpNoThrow( + appOpPermissionName, + + appDesc.uid, appDesc.packageName + ) + } else { + appOps.unsafeCheckOpNoThrow( + appOpPermissionName, + appDesc.uid, appDesc.packageName + ) + } + + return AppOpModes.getByModeValue(mode) + } + + override fun isPermissionsDangerous(permissionName: String): Boolean { + try { + val permissionInfo = context.packageManager.getPermissionInfo(permissionName, 0) + return isPermissionsDangerous(permissionInfo) + } catch (e: Exception) { + Log.w(TAG, "exception in isPermissionsDangerous(String)", e) + return false + } + } + + @Suppress("DEPRECATION") + private fun isPermissionsDangerous(permissionInfo: PermissionInfo): Boolean { + try { + return if (Build.VERSION.SDK_INT < Build.VERSION_CODES.P) { + permissionInfo.protectionLevel and PROTECTION_DANGEROUS == 1 + } else { + permissionInfo.protection == PROTECTION_DANGEROUS + } + } catch (e: Exception) { + Log.w(TAG, "exception in isPermissionsDangerous(PermissionInfo)", e) + return false + } + } + + override fun buildApplicationDescription( + appInfo: ApplicationInfo, + profileId: Int, + profileType: ProfileType + ): + ApplicationDescription { + return ApplicationDescription( + packageName = appInfo.packageName, + uid = appInfo.uid, + label = getAppLabel(appInfo), + icon = null, + profileId = profileId, + profileType = profileType, + ) + } + + private fun getAppLabel(appInfo: ApplicationInfo): CharSequence { + return context.packageManager.getApplicationLabel(appInfo) + } + + fun getApplicationIcon(appInfo: ApplicationInfo): Drawable? { + return context.packageManager.getApplicationIcon(appInfo) + } + + override fun getApplicationIcon(packageName: String): Drawable? { + return context.packageManager.getApplicationIcon(packageName) + } +} |