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main.com.wisetrack.sdk.PreinstallUtil.kt Maven / Gradle / Ivy
package com.wisetrack.sdk
import android.Manifest
import android.annotation.SuppressLint
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.net.Uri
import android.os.Build
import org.json.JSONObject
import java.io.File
import java.io.FileInputStream
import java.util.*
/**
@author hamed (@hamed-hsb)
* @since 10th October 2021
*/
class PreinstallUtil {
companion object {
private const val SYSTEM_PROPERTY_BITMASK: Long = 1 //00...000000001
private const val SYSTEM_PROPERTY_REFLECTION_BITMASK: Long = 2 //00...000000010
private const val SYSTEM_PROPERTY_PATH_BITMASK: Long = 4 //00...000000100
private const val SYSTEM_PROPERTY_PATH_REFLECTION_BITMASK: Long = 8 //00...000001000
private const val CONTENT_PROVIDER_BITMASK: Long = 16 //00...000010000
private const val CONTENT_PROVIDER_INTENT_ACTION_BITMASK: Long = 32 //00...000100000
private const val FILE_SYSTEM_BITMASK: Long = 64 //00...001000000
private const val CONTENT_PROVIDER_NO_PERMISSION_BITMASK: Long = 128 //00...010000000
// bitwise OR (|) of all above locations
private const val ALL_LOCATION_BITMASK = SYSTEM_PROPERTY_BITMASK or
SYSTEM_PROPERTY_REFLECTION_BITMASK or
SYSTEM_PROPERTY_PATH_BITMASK or
SYSTEM_PROPERTY_PATH_REFLECTION_BITMASK or
CONTENT_PROVIDER_BITMASK or
CONTENT_PROVIDER_INTENT_ACTION_BITMASK or
FILE_SYSTEM_BITMASK or
CONTENT_PROVIDER_NO_PERMISSION_BITMASK //00...011111111
fun hasAllLocationsBeenRead(status: Long): Boolean {
// Check if the given status has none of the valid location with bit `0`, indicating it has
// not been read
return status and ALL_LOCATION_BITMASK == ALL_LOCATION_BITMASK
}
fun hasNotBeenRead(location: String?, status: Long): Boolean {
// Check if the given status has bit '0` (not `1`) for the given location, indicating it has not been read
when (location) {
Constants.SYSTEM_PROPERTIES -> return status and SYSTEM_PROPERTY_BITMASK != SYSTEM_PROPERTY_BITMASK
Constants.SYSTEM_PROPERTIES_REFLECTION -> return status and SYSTEM_PROPERTY_REFLECTION_BITMASK != SYSTEM_PROPERTY_REFLECTION_BITMASK
Constants.SYSTEM_PROPERTIES_PATH -> return status and SYSTEM_PROPERTY_PATH_BITMASK != SYSTEM_PROPERTY_PATH_BITMASK
Constants.SYSTEM_PROPERTIES_PATH_REFLECTION -> return status and SYSTEM_PROPERTY_PATH_REFLECTION_BITMASK != SYSTEM_PROPERTY_PATH_REFLECTION_BITMASK
Constants.CONTENT_PROVIDER -> return status and CONTENT_PROVIDER_BITMASK != CONTENT_PROVIDER_BITMASK
Constants.CONTENT_PROVIDER_INTENT_ACTION -> return status and CONTENT_PROVIDER_INTENT_ACTION_BITMASK != CONTENT_PROVIDER_INTENT_ACTION_BITMASK
Constants.FILE_SYSTEM -> return status and FILE_SYSTEM_BITMASK != FILE_SYSTEM_BITMASK
Constants.CONTENT_PROVIDER_NO_PERMISSION -> return status and CONTENT_PROVIDER_NO_PERMISSION_BITMASK != CONTENT_PROVIDER_NO_PERMISSION_BITMASK
}
return false
}
fun markAsRead(location: String?, status: Long): Long {
// Set the bit to '1` for the given location, indicating it has been read
when (location) {
Constants.SYSTEM_PROPERTIES -> return status or SYSTEM_PROPERTY_BITMASK
Constants.SYSTEM_PROPERTIES_REFLECTION -> return status or SYSTEM_PROPERTY_REFLECTION_BITMASK
Constants.SYSTEM_PROPERTIES_PATH -> return status or SYSTEM_PROPERTY_PATH_BITMASK
Constants.SYSTEM_PROPERTIES_PATH_REFLECTION -> return status or SYSTEM_PROPERTY_PATH_REFLECTION_BITMASK
Constants.CONTENT_PROVIDER -> return status or CONTENT_PROVIDER_BITMASK
Constants.CONTENT_PROVIDER_INTENT_ACTION -> return status or CONTENT_PROVIDER_INTENT_ACTION_BITMASK
Constants.FILE_SYSTEM -> return status or FILE_SYSTEM_BITMASK
Constants.CONTENT_PROVIDER_NO_PERMISSION -> return status or CONTENT_PROVIDER_NO_PERMISSION_BITMASK
}
return status
}
fun getPayloadFromSystemProperty(
packageName: String,
logger: ILogger
): String? {
return readSystemProperty(
Constants.WISETRACK_PREINSTALL_SYSTEM_PROPERTY_PREFIX + packageName,
logger
)
}
fun getPayloadFromSystemPropertyReflection(
packageName: String,
logger: ILogger
): String? {
return readSystemPropertyReflection(
Constants.WISETRACK_PREINSTALL_SYSTEM_PROPERTY_PREFIX + packageName,
logger
)
}
fun getPayloadFromSystemPropertyFilePath(
packageName: String,
logger: ILogger
): String? {
val filePath: String? =
readSystemProperty(Constants.WISETRACK_PREINSTALL_SYSTEM_PROPERTY_PATH, logger)
if (filePath == null || filePath.isEmpty()) {
return null
}
val content: String? = readFileContent(filePath, logger)
return if (content == null || content.isEmpty()) {
null
} else readPayloadFromJsonString(content, packageName, logger)
}
fun getPayloadFromSystemPropertyFilePathReflection(
packageName: String,
logger: ILogger
): String? {
val filePath: String? = readSystemPropertyReflection(
Constants.WISETRACK_PREINSTALL_SYSTEM_PROPERTY_PATH,
logger
)
if (filePath == null || filePath.isEmpty()) {
return null
}
val content: String? = readFileContent(filePath, logger)
return if (content == null || content.isEmpty()) {
null
} else readPayloadFromJsonString(content, packageName, logger)
}
fun getPayloadFromContentProviderDefault(
context: Context,
packageName: String,
logger: ILogger
): String? {
if (!Util.resolveContentProvider(
context,
Constants.WISETRACK_PREINSTALL_CONTENT_URI_AUTHORITY
)
) {
return null
}
val defaultContentUri: String = String.format(
"content://%s/%s",
Constants.WISETRACK_PREINSTALL_CONTENT_URI_AUTHORITY,
Constants.WISETRACK_PREINSTALL_CONTENT_URI_PATH
)
return readContentProvider(context, defaultContentUri, packageName, logger)
}
fun getPayloadsFromContentProviderIntentAction(
context: Context,
packageName: String,
logger: ILogger
): List? {
return readContentProviderIntentAction(
context,
packageName,
Manifest.permission.INSTALL_PACKAGES,
logger
)
}
fun getPayloadsFromContentProviderNoPermission(
context: Context,
packageName: String,
logger: ILogger
): List? {
return readContentProviderIntentAction(
context,
packageName,
null, // no permission
logger
)
}
fun getPayloadFromFileSystem(
packageName: String,
filePath: String?,
logger: ILogger
): String? {
var content = readFileContent(Constants.WISETRACK_PREINSTALL_FILE_SYSTEM_PATH, logger)
if (content == null || content.isEmpty()) {
if (filePath != null && filePath.isNotEmpty()) {
content = readFileContent(filePath, logger)
}
if (content == null || content.isEmpty()) {
return null
}
}
return readPayloadFromJsonString(content, packageName, logger)
}
private fun readSystemProperty(
propertyKey: String,
logger: ILogger
): String? {
try {
return System.getProperty(propertyKey)
} catch (e: Exception) {
logger.error("Exception read system property key [$propertyKey] error [${e.message!!}]")
logger.report("Exception read system property key [$propertyKey] error [${e.message!!}]")
}
return null
}
@SuppressLint("PrivateApi")
private fun readSystemPropertyReflection(
propertyKey: String,
logger: ILogger
): String? {
try {
val classObject = Class.forName("android.os.SystemProperties")
val methodObject = classObject.getDeclaredMethod("get", String::class.java)
return methodObject.invoke(classObject, propertyKey) as String
} catch (e: Exception) {
logger.error("Exception read system property using reflection key [$propertyKey] error [${e.message}]")
logger.report("Exception read system property using reflection key [$propertyKey] error [${e.message}]")
}
return null
}
private fun readContentProvider(
context: Context,
contentUri: String,
packageName: String,
logger: ILogger
): String? {
return try {
val contentResolver = context.contentResolver
val uri = Uri.parse(contentUri)
val encryptedDataColumn = "encrypted_data"
val projection = arrayOf(encryptedDataColumn)
val selection = "package_name=?"
val selectionArgs = arrayOf(packageName)
val cursor = contentResolver.query(
uri, projection,
selection, selectionArgs, null
)
if (cursor == null) {
logger.debug("Read content provider cursor null content uri [$contentUri]")
return null
}
if (!cursor.moveToFirst()) {
logger.debug("Read content provider cursor empty content uri [$contentUri]")
cursor.close()
return null
}
val payload = cursor.getString(0)
cursor.close()
payload
} catch (e: Exception) {
logger.error("Exception read content provider uri [$contentUri] error [${e.message!!}]")
logger.report("Exception read content provider uri [$contentUri] error [${e.message!!}]")
null
}
}
private fun readContentProviderIntentAction(
context: Context,
packageName: String,
permission: String?,
logger: ILogger
): List? {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
val providers = context.packageManager
.queryIntentContentProviders(
Intent(Constants.WISETRACK_PREINSTALL_CONTENT_PROVIDER_INTENT_ACTION), 0
)
val payloads: MutableList = ArrayList()
for (provider in providers) {
var permissionGranted = true
if (permission != null) {
val result = context.packageManager.checkPermission(
permission, provider.providerInfo.packageName
)
if (result != PackageManager.PERMISSION_GRANTED) {
permissionGranted = false
}
}
if (permissionGranted) {
val authority = provider.providerInfo.authority
if (authority != null && authority.isNotEmpty()) {
val contentUri: String = String.format(
"content://%s/%s",
authority, Constants.WISETRACK_PREINSTALL_CONTENT_URI_PATH
)
val payload =
readContentProvider(context, contentUri, packageName, logger)
if (payload != null && payload.isNotEmpty()) {
payloads.add(payload)
}
}
}
}
if (payloads.isNotEmpty()) {
return payloads
}
}
return null
}
private fun readFileContent(filePath: String, logger: ILogger): String? {
val file = File(filePath)
if (file.exists() && file.isFile && file.canRead()) {
try {
val length = file.length().toInt()
if (length <= 0) {
logger.debug("Read file content empty file")
return null
}
val bytes = ByteArray(length)
val fileInputStream = FileInputStream(file)
try {
fileInputStream.read(bytes)
} catch (e: Exception) {
logger.error("Exception read file input stream error [${e.message!!}]")
logger.report("Exception read file content error [${e.message!!}]")
return null
} finally {
fileInputStream.close()
}
return String(bytes)
} catch (e: Exception) {
logger.error("Exception read file content error [${e.message!!}]")
logger.report("Exception read file content error [${e.message!!}]")
}
}
return null
}
private fun readPayloadFromJsonString(
jsonString: String,
packageName: String,
logger: ILogger
): String? {
try {
val jsonObject = JSONObject(jsonString.trim { it <= ' ' })
return jsonObject.optString(packageName)
} catch (e: Exception) {
logger.error("Exception read payload from json string error [${e.message!!}]")
logger.report("Exception read payload from json string error [${e.message!!}]")
}
return null
}
}
}
