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Truncate message length based on utf8-byte size.

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This commit is contained in:
Greyson Parrelli
2025-07-18 16:27:41 -04:00
committed by GitHub
parent 84c6719d03
commit 1cef53d82e
14 changed files with 500 additions and 9 deletions
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11
app/src/main/java/org/thoughtcrime/securesms/util/MessageUtil.kt
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@@ -1,6 +1,7 @@
package org.thoughtcrime.securesms.util
import android.content.Context
import org.signal.core.util.kibiBytes
import org.signal.core.util.splitByByteLength
import org.thoughtcrime.securesms.mms.TextSlide
import org.thoughtcrime.securesms.providers.BlobProvider
@@ -10,7 +11,13 @@ import java.util.Locale
import java.util.Optional
object MessageUtil {
const val MAX_MESSAGE_SIZE_BYTES: Int = 2000 // Technically 2048, but we'll play it a little safe
/** The maximum size of an inlined text body we'll allow in a proto. Anything larger than this will need to be a long-text attachment. */
@JvmField
val MAX_INLINE_BODY_SIZE_BYTES: Int = 2.kibiBytes.bytes.toInt()
/** The maximum total message size we'll allow ourselves to send, even as a long text attachment. */
@JvmField
val MAX_TOTAL_BODY_SIZE_BYTES = 64.kibiBytes.bytes.toInt()
/**
* @return If the message is longer than the allowed text size, this will return trimmed text with
@@ -18,7 +25,7 @@ object MessageUtil {
*/
@JvmStatic
fun getSplitMessage(context: Context, rawText: String): SplitResult {
val (trimmed, remainder) = rawText.splitByByteLength(MAX_MESSAGE_SIZE_BYTES)
val (trimmed, remainder) = rawText.splitByByteLength(MAX_INLINE_BODY_SIZE_BYTES)
return if (remainder != null) {
val textData = rawText.toByteArray()