Skip to content

Preserve thread text when offline saves are partial #36

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
CHOS1N11111 merged 2 commits into from
Aug 27, 2026
Merged

Preserve thread text when offline saves are partial #36

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
e59e6a1
Preserve thread text on partial offline saves
CHOS1N11111 Aug 27, 2026
06deabc
Support offline save fallback on API 23
CHOS1N11111 Aug 27, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
98 changes: 68 additions & 30 deletions app/src/main/kotlin/dev/infinityf4p/tiebapure/AppSavedThreadMedia.kt
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ import java.io.File
import java.io.FileOutputStream
import java.security.MessageDigest
import java.util.UUID
import kotlinx.coroutines.CancellationException
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext

Expand All @@ -24,6 +25,15 @@ internal data class PreparedSavedThreadMedia(
val transaction: SavedThreadMediaTransaction,
)

internal suspend fun attemptSavedThreadMedia(action: suspend () -> Unit): Boolean = try {
action()
true
} catch (error: CancellationException) {
throw error
} catch (_: Exception) {
false
}

internal class SavedThreadMediaTransaction(
private val staging: File,
private val destination: File,
Expand Down Expand Up @@ -103,7 +113,9 @@ class AppSavedThreadMediaStore(context: Context) {
withContext(Dispatchers.IO) {
val staging = createStaging(snapshot.thread.id)
val assets = linkedMapOf<String, SavedThreadMediaAsset>()
val attempted = mutableSetOf<String>()
var totalBytes = 0L
var mediaComplete = true

fun commitFile(sourceKey: String, kind: SavedThreadMediaKind, source: File, extension: String) {
if (assets.containsKey(sourceKey)) return
Expand All @@ -113,48 +125,70 @@ class AppSavedThreadMediaStore(context: Context) {
totalBytes += size
val fileName = "${kind.name.lowercase()}-${sha256(sourceKey)}.$extension"
val destination = File(staging, fileName)
source.inputStream().use { input ->
FileOutputStream(destination).use { output ->
input.copyTo(output)
output.fd.sync()
try {
source.inputStream().use { input ->
FileOutputStream(destination).use { output ->
input.copyTo(output)
output.fd.sync()
}
}
restrictToOwner(destination)
assets[sourceKey] = SavedThreadMediaAsset(
sourceKey = sourceKey,
kind = kind,
fileName = fileName,
byteCount = size,
sha256 = sha256(destination),
)
} catch (error: Throwable) {
destination.delete()
totalBytes -= size
throw error
}
restrictToOwner(destination)
assets[sourceKey] = SavedThreadMediaAsset(
sourceKey = sourceKey,
kind = kind,
fileName = fileName,
byteCount = size,
sha256 = sha256(destination),
)
}

suspend fun saveImage(rawUrl: String?) {
val url = rawUrl?.takeIf(MediaUrlPolicy::isAllowed) ?: return
if (assets.containsKey(url)) return
commitFile(url, SavedThreadMediaKind.Image, imageLoader.load(url), "img")
val value = rawUrl?.trim()?.takeIf(String::isNotEmpty) ?: return
if (!attempted.add(value)) return
val url = value.takeIf(MediaUrlPolicy::isAllowed)
if (url == null) {
mediaComplete = false
return
}
if (!attemptSavedThreadMedia {
commitFile(url, SavedThreadMediaKind.Image, imageLoader.load(url), "img")
}) mediaComplete = false
}

suspend fun saveVideo(rawUrl: String?) {
val url = rawUrl?.takeIf(MediaUrlPolicy::isAllowedDownloadableVideo) ?: return
if (assets.containsKey(url)) return
val lease = videoDownloader.download(url)
try {
commitFile(url, SavedThreadMediaKind.Video, lease.file, "mp4")
} finally {
lease.release()
val value = rawUrl?.trim()?.takeIf(String::isNotEmpty) ?: return
if (!attempted.add(value)) return
val url = value.takeIf(MediaUrlPolicy::isAllowedDownloadableVideo)
if (url == null) {
mediaComplete = false
return
}
if (!attemptSavedThreadMedia {
val lease = videoDownloader.download(url)
try {
commitFile(url, SavedThreadMediaKind.Video, lease.file, "mp4")
} finally {
lease.release()
}
}) mediaComplete = false
}

suspend fun saveVoice(md5: String) {
val key = voiceKey(md5)
if (assets.containsKey(key)) return
val lease = voiceDownloader.download(md5)
try {
commitFile(key, SavedThreadMediaKind.Voice, lease.file, "audio")
} finally {
lease.release()
}
if (!attempted.add(key)) return
if (!attemptSavedThreadMedia {
val lease = voiceDownloader.download(md5)
try {
commitFile(key, SavedThreadMediaKind.Voice, lease.file, "audio")
} finally {
lease.release()
}
}) mediaComplete = false
}

try {
Expand Down Expand Up @@ -188,7 +222,11 @@ class AppSavedThreadMediaStore(context: Context) {
}
}
}
val updated = snapshot.copy(mediaMode = mode, mediaAssets = assets.values.toList()).validated()
val updated = snapshot.copy(
mediaMode = mode,
mediaAssets = assets.values.toList(),
mediaCaptureComplete = mode == SavedThreadMediaMode.TextOnly || mediaComplete,
).validated()
PreparedSavedThreadMedia(updated, transaction(staging, threadDirectory(snapshot.thread.id)))
} catch (error: Throwable) {
staging.deleteRecursively()
Expand Down
Loading