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Fix settings provider being called with wrong identity

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Fixes #1503
This commit is contained in:
Marvin W 2021-07-01 10:39:54 +02:00
parent 2d9419a785
commit a431fea9bb
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GPG Key ID: 072E9235DB996F2A
1 changed files with 16 additions and 6 deletions
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22
play-services-basement/src/main/kotlin/org/microg/gms/settings/SettingsContract.kt
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@ -4,6 +4,7 @@ import android.content.ContentValues
import android.content.Context
import android.database.Cursor
import android.net.Uri
import android.os.Binder
object SettingsContract {
const val AUTHORITY = "org.microg.gms.settings"
@ -103,15 +104,24 @@ object SettingsContract {
const val CONTENT_TYPE = "vnd.android.cursor.item/vnd.$AUTHORITY.$id"
}
fun <T> getSettings(context: Context, uri: Uri, projection: Array<out String>?, f: (Cursor) -> T): T {
context.contentResolver.query(uri, projection, null, null, null).use { c ->
require(c != null) { "Cursor for query $uri ${projection?.toList()} was null" }
if (!c.moveToFirst()) error("Cursor for query $uri ${projection?.toList()} was empty")
return f.invoke(c)
private fun <T> withoutCallingIdentity(f: () -> T): T {
val identity = Binder.clearCallingIdentity()
try {
return f.invoke()
} finally {
Binder.restoreCallingIdentity(identity)
}
}
fun setSettings(context: Context, uri: Uri, v: ContentValues.() -> Unit) {
fun <T> getSettings(context: Context, uri: Uri, projection: Array<out String>?, f: (Cursor) -> T): T = withoutCallingIdentity {
context.contentResolver.query(uri, projection, null, null, null).use { c ->
require(c != null) { "Cursor for query $uri ${projection?.toList()} was null" }
if (!c.moveToFirst()) error("Cursor for query $uri ${projection?.toList()} was empty")
f.invoke(c)
}
}
fun setSettings(context: Context, uri: Uri, v: ContentValues.() -> Unit) = withoutCallingIdentity {
val values = ContentValues().apply { v.invoke(this) }
val affected = context.contentResolver.update(uri, values, null, null)
require(affected == 1) { "Update for $uri with $values affected 0 rows"}