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Support sharing media attachment with paste
Any file with mimetype application/*, audio/*, model/*, video/* is supported. Note: We do not yet do any size checking. But we do report attach file size
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160
android/app/src/main/java/alt/nainapps/sharepaste/intents/ShareAttachActivity.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,160 @@ | ||
| package alt.nainapps.sharepaste.intents | ||
|
|
||
| import alt.nainapps.sharepaste.common.EncryptAndShareUI | ||
| import alt.nainapps.sharepaste.intents.ui.theme.SharePasteO2Theme | ||
| import android.content.Intent | ||
| import android.net.Uri | ||
| import android.os.Bundle | ||
| import android.os.Parcelable | ||
| import android.provider.OpenableColumns | ||
| import android.util.Log | ||
| import androidx.activity.ComponentActivity | ||
| import androidx.activity.compose.setContent | ||
| import androidx.compose.foundation.layout.Arrangement | ||
| import androidx.compose.foundation.layout.Column | ||
| import androidx.compose.foundation.layout.Spacer | ||
| import androidx.compose.foundation.layout.fillMaxSize | ||
| import androidx.compose.foundation.layout.height | ||
| import androidx.compose.material3.MaterialTheme | ||
| import androidx.compose.material3.Surface | ||
| import androidx.compose.material3.Text | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.ui.Alignment | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.text.style.TextAlign | ||
| import androidx.compose.ui.tooling.preview.Preview | ||
| import androidx.compose.ui.unit.dp | ||
| import androidx.preference.PreferenceManager | ||
| import java.io.FileNotFoundException | ||
| import java.io.IOException | ||
| import java.io.InputStream | ||
| import kotlin.io.encoding.Base64 | ||
| import kotlin.io.encoding.ExperimentalEncodingApi | ||
|
|
||
| const val TAG = "ShareAttachActivity" | ||
|
|
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| class ShareAttachActivity : ComponentActivity() { | ||
| override fun onCreate(savedInstanceState: Bundle?) { | ||
| super.onCreate(savedInstanceState) | ||
| assert(intent?.action == Intent.ACTION_SEND) { | ||
| "This activity is expected to be intent filtered to Intent.ACTION_SEND" | ||
| } | ||
| var attach: String? = null | ||
| var attachName: String? = null | ||
| var attachSize: String? = "unknown size" | ||
| val customPrivatebinHost = PreferenceManager.getDefaultSharedPreferences( | ||
| this | ||
| ).getString("privatebin_host_url", null) | ||
|
|
||
| // If there is some extra text, receive it. | ||
| val text = intent.getStringExtra(Intent.EXTRA_TEXT).orEmpty() | ||
|
|
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| // If there's a file attached, we should read it and covert it's contents to dataUri. | ||
| val contentUri: Uri? = intent.getParcelableExtra<Parcelable>( | ||
| Intent.EXTRA_STREAM | ||
| ) as? Uri | ||
|
|
||
| contentUri?.let { contentUri -> | ||
| try { | ||
| val mimeType = contentResolver.getType(contentUri).also { | ||
| Log.i(TAG, "Attach file type: $it") | ||
| } ?: "" | ||
|
|
||
| /* | ||
| * Get the file's content URI from the incoming Intent, | ||
| * then query the server app to get the file's display name | ||
| * and size. | ||
| */ | ||
| contentResolver.query(contentUri, null, null, null, null)?.use { cursor -> | ||
| /* | ||
| * Get the column indexes of the data in the Cursor, | ||
| * move to the first row in the Cursor, get the data, | ||
| * and display it. | ||
| */ | ||
| val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME) | ||
| val sizeIndex = cursor.getColumnIndex(OpenableColumns.SIZE) | ||
| cursor.moveToFirst() | ||
| attachName = cursor.getString(nameIndex) | ||
| attachSize = bytesToHumanReadableSize(cursor.getLong(sizeIndex)) | ||
| } | ||
|
|
||
| contentResolver.openInputStream(contentUri)?.use { inputStream -> | ||
| // inputStream is guaranteed to be non-null here | ||
| // Process the input stream | ||
| Log.i(TAG, "Processing input stream...") | ||
| // Convert InputStream to Base64 String | ||
| inputStreamToBase64String(inputStream).let { | ||
| // Construct the Data URI | ||
| attach = "data:$mimeType;base64,$it" | ||
| } | ||
| } | ||
| } catch (e: FileNotFoundException) { | ||
| // Handle the case where the file was not found | ||
| Log.e(TAG, "File not found: ${e.message}") | ||
| } catch (e: IOException) { | ||
| // Handle general IO errors, including permission issues | ||
| Log.e(TAG, "IO Error: ${e.message}") | ||
| } | ||
| } | ||
|
|
||
| setContent { | ||
| SharePasteO2Theme { | ||
| // A surface container using the 'background' color from the theme | ||
| Surface( | ||
| modifier = Modifier.fillMaxSize(), | ||
| color = MaterialTheme.colorScheme.background | ||
| ) { | ||
| Column( | ||
| horizontalAlignment = Alignment.CenterHorizontally, | ||
| verticalArrangement = Arrangement.Center | ||
| ) { | ||
| Spacer(modifier = Modifier.height(16.dp)) | ||
| Text( | ||
| textAlign = TextAlign.Center, | ||
| text = "Attachment: $attachName ($attachSize)" | ||
| ) | ||
| // Note: TODO(" We should maybe warn when too big file size above ") | ||
| EncryptAndShareUI( | ||
| text = text, | ||
| attach = attach, | ||
| attachName = attachName, | ||
| customPrivatebinHost = customPrivatebinHost | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // https://stackoverflow.com/a/68822715 | ||
| fun bytesToHumanReadableSize(bytes: Long) = when { | ||
| bytes >= 1 shl 30 -> "%.1f GB".format(bytes.toDouble() / (1 shl 30)) | ||
| bytes >= 1 shl 20 -> "%.1f MB".format(bytes.toDouble() / (1 shl 20)) | ||
| bytes >= 1 shl 10 -> "%.0f kB".format(bytes.toDouble() / (1 shl 10)) | ||
| else -> "$bytes bytes" | ||
| } | ||
|
|
||
| @OptIn(ExperimentalEncodingApi::class) | ||
| fun inputStreamToBase64String(inputStream: InputStream): String? = try { | ||
| Base64.encode(inputStream.readBytes()) | ||
| } catch (e: Exception) { | ||
| Log.e(TAG, "Encoding Base64 Error: ${e.message}") | ||
| null // Handle exception appropriately | ||
| } | ||
|
|
||
| @Composable | ||
| private fun Greeting(name: String, modifier: Modifier = Modifier) { | ||
| Text( | ||
| text = "Hello $name!", | ||
| modifier = modifier | ||
| ) | ||
| } | ||
|
|
||
| @Preview(showBackground = true) | ||
| @Composable | ||
| private fun GreetingPreview() { | ||
| SharePasteO2Theme { | ||
| Greeting("Android") | ||
| } | ||
| } |
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