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FairEmail
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Code Issues Projects Releases Wiki Activity

Bring back external attachment storage

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pull/214/head
M66B 1 year ago
parent ee754dcace
commit 406486cc05
10 changed files with 146 additions and 16 deletions
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15
FAQ.md
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@ -3347,15 +3347,16 @@ Messages, attachments, etc stored on external storage media, like an sdcard, can
See [here](https://developer.android.com/training/data-storage) for the details.
Instead, consider to use [adoptable storage](https://source.android.com/devices/storage/adoptable).
~~Since version 1.1829 is it possible to store attachments to external storage space private to the app (except for file managers) via an option in the debug panel.~~
~~You can enable the debug panel by enabling debug mode in the miscellaneous settings (last option).~~
~~To prevent ongoing operations from storing attachments at the old location~~
~~you should disable receiving messages in the receive settings and wait until all operations have been completed before changing this option.~~
~~Please be aware that removing the storage space will inevitably result in problems, which is one of the reasons why this option is hidden.~~
Since version 1.1829 is it possible to store attachments to external storage space private to the app (except for file managers) via an option in the debug panel.
You can enable the debug panel by enabling debug mode in the miscellaneous settings (last option).
To prevent ongoing operations from storing attachments at the old location
you should disable receiving messages in the receive settings and wait until all operations have been completed before changing this option.
Please be aware that removing the storage space will inevitably result in problems, which is one of the reasons why this option is hidden.
~~Moving messages to an sdcard is not an option because this would significantly reduce the response times of the app.~~
Please note that more often than not the external storage space is emulated on recent Android versions and recent devices.
and that there is no longer a viable way to get permission to write to other locations.
The option to move attachments to external storage space was removed in version 1.2137 because Play Store policies considers it unsafe.
Moving messages to an sdcard is not an option because this would significantly reduce the response times of the app.
When needed you can save (raw) messages via the three-dots menu just above the message text
and save attachments by tapping on the floppy icon.

10
app/src/main/java/eu/faircode/email/DB.java
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@ -2877,11 +2877,11 @@ public abstract class DB extends RoomDatabase {
@Override
public void migrate(@NonNull SupportSQLiteDatabase db) {
logMigration(startVersion, endVersion);
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean external_storage = prefs.getBoolean("external_storage", false);
if (external_storage || BuildConfig.DEBUG)
db.execSQL("UPDATE `attachment` SET available = 0");
prefs.edit().remove("external_storage").apply();
//SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
//boolean external_storage = prefs.getBoolean("external_storage", false);
//if (external_storage || BuildConfig.DEBUG)
// db.execSQL("UPDATE `attachment` SET available = 0");
//prefs.edit().remove("external_storage").apply();
}
}).addMigrations(new Migration(286, 287) {
@Override

5
app/src/main/java/eu/faircode/email/DebugHelper.java
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@ -57,6 +57,7 @@ import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Debug;
import android.os.Environment;
import android.os.IBinder;
import android.os.LocaleList;
import android.os.PowerManager;
@ -1647,6 +1648,10 @@ public class DebugHelper {
ai.sourceDir, ai.publicSourceDir));
size += write(os, String.format("Files: %s\r\n", context.getFilesDir()));
File external = Helper.getExternalFilesDir(context);
boolean emulated = (external != null && Environment.isExternalStorageEmulated(external));
size += write(os, String.format("External: %s emulated: %b\r\n", external, emulated));
size += write(os, String.format("Cache: %s\r\n external: %s\n",
context.getCacheDir(), context.getExternalCacheDir()));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)

17
app/src/main/java/eu/faircode/email/EntityAttachment.java
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@ -22,10 +22,12 @@ package eu.faircode.email;
import static androidx.room.ForeignKey.CASCADE;
import android.content.Context;
import android.content.SharedPreferences;
import android.net.Uri;
import android.text.TextUtils;
import androidx.annotation.NonNull;
import androidx.preference.PreferenceManager;
import androidx.room.Entity;
import androidx.room.ForeignKey;
import androidx.room.Ignore;
@ -170,7 +172,7 @@ public class EntityAttachment {
}
static File getFile(Context context, long id, String name) {
File dir = Helper.ensureExists(context, "attachments");
File dir = getRoot(context);
String filename = Long.toString(id);
if (!TextUtils.isEmpty(name))
filename += "." + Helper.sanitizeFilename(name);
@ -179,6 +181,19 @@ public class EntityAttachment {
return new File(dir, filename);
}
static File getRoot(Context context) {
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
boolean external_storage = prefs.getBoolean("external_storage", false);
if (external_storage) {
File dir = Helper.getExternalFilesDir(context);
dir.mkdirs();
return dir;
}
return Helper.ensureExists(context, "attachments");
}
static void copy(Context context, long oldid, long newid) {
DB db = DB.getInstance(context);

3
app/src/main/java/eu/faircode/email/FragmentOptionsBackup.java
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@ -1186,6 +1186,9 @@ public class FragmentOptionsBackup extends FragmentBase implements SharedPrefere
continue;
}
if ("external_storage".equals(key))
continue;
if ("reformatted_hint".equals(key))
continue;

69
app/src/main/java/eu/faircode/email/FragmentOptionsMisc.java
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@ -43,6 +43,7 @@ import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Debug;
import android.os.Environment;
import android.provider.Settings;
import android.text.Editable;
import android.text.SpannableStringBuilder;
@ -82,6 +83,7 @@ import androidx.work.WorkManager;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
@ -165,6 +167,8 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
private SwitchCompat swAutostart;
private SwitchCompat swEmergency;
private SwitchCompat swWorkManager;
private SwitchCompat swExternalStorage;
private TextView tvExternalStorageFolder;
private SwitchCompat swIntegrity;
private SwitchCompat swWal;
private SwitchCompat swCheckpoints;
@ -267,7 +271,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
"crash_reports", "cleanup_attachments",
"watchdog", "experiments", "main_log", "main_log_memory", "protocol", "log_level", "debug", "leak_canary",
"test1", "test2", "test3", "test4", "test5",
"emergency_file", "work_manager",
"emergency_file", "work_manager", // "external_storage",
"sqlite_integrity_check", "wal", "sqlite_checkpoints", "sqlite_analyze", "sqlite_auto_vacuum", "sqlite_sync_extra", "sqlite_cache",
"chunk_size", "thread_range",
"autoscroll_editor", "undo_manager",
@ -400,6 +404,8 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
swAutostart = view.findViewById(R.id.swAutostart);
swEmergency = view.findViewById(R.id.swEmergency);
swWorkManager = view.findViewById(R.id.swWorkManager);
swExternalStorage = view.findViewById(R.id.swExternalStorage);
tvExternalStorageFolder = view.findViewById(R.id.tvExternalStorageFolder);
swIntegrity = view.findViewById(R.id.swIntegrity);
swWal = view.findViewById(R.id.swWal);
swCheckpoints = view.findViewById(R.id.swCheckpoints);
@ -1080,6 +1086,61 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
}
});
swExternalStorage.setEnabled(Helper.getExternalFilesDir(getContext()) != null);
swExternalStorage.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
SharedPreferences.Editor editor = prefs.edit();
editor.putBoolean("external_storage", isChecked);
editor.apply();
Bundle args = new Bundle();
args.putBoolean("external_storage", isChecked);
new SimpleTask<Integer>() {
@Override
protected Integer onExecute(Context context, Bundle args) throws IOException {
boolean external_storage = args.getBoolean("external_storage");
File sourceRoot = (!external_storage
? Helper.getExternalFilesDir(context)
: context.getFilesDir());
File targetRoot = (external_storage
? Helper.getExternalFilesDir(context)
: context.getFilesDir());
File source = new File(sourceRoot, "attachments");
File target = new File(targetRoot, "attachments");
source.mkdirs();
target.mkdirs();
File[] attachments = source.listFiles();
if (attachments != null)
for (File attachment : attachments) {
File dest = new File(target, attachment.getName());
Log.w("Move " + attachment + " to " + dest);
Helper.copy(attachment, dest);
Helper.secureDelete(attachment);
}
return (attachments == null ? -1 : attachments.length);
}
@Override
protected void onExecuted(Bundle args, Integer count) {
String msg = String.format("Moved %d attachments", count);
ToastEx.makeText(getContext(), msg, Toast.LENGTH_LONG).show();
}
@Override
protected void onException(Bundle args, Throwable ex) {
Log.unexpectedError(getParentFragmentManager(), ex);
}
}.execute(FragmentOptionsMisc.this, args, "external");
}
});
swIntegrity.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton v, boolean checked) {
@ -1919,6 +1980,11 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
else
tvLastDaily.setText(("-"));
File external = Helper.getExternalFilesDir(getContext());
boolean emulated = (external != null && Environment.isExternalStorageEmulated(external));
tvExternalStorageFolder.setText(
(external == null ? null : external.getAbsolutePath()) + (emulated ? " emulated" : ""));
swExactAlarms.setEnabled(AlarmManagerCompatEx.canScheduleExactAlarms(getContext()));
swTestIab.setVisibility(BuildConfig.DEBUG && BuildConfig.TEST_RELEASE ? View.VISIBLE : View.GONE);
@ -2206,6 +2272,7 @@ public class FragmentOptionsMisc extends FragmentBase implements SharedPreferenc
swAutostart.setChecked(Helper.isComponentEnabled(getContext(), ReceiverAutoStart.class));
swEmergency.setChecked(prefs.getBoolean("emergency_file", true));
swWorkManager.setChecked(prefs.getBoolean("work_manager", true));
swExternalStorage.setChecked(prefs.getBoolean("external_storage", false));
swIntegrity.setChecked(prefs.getBoolean("sqlite_integrity_check", true));
swWal.setChecked(prefs.getBoolean("wal", true));

12
app/src/main/java/eu/faircode/email/Helper.java
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@ -2659,6 +2659,18 @@ public class Helper {
return dir;
}
static File getExternalFilesDir(Context context) {
return getExternalFilesDir(context, null);
}
static File getExternalFilesDir(Context context, String type) {
File[] dirs = ContextCompat.getExternalFilesDirs(context, type);
if (dirs == null || dirs.length == 0)
return context.getExternalFilesDir(type);
else
return dirs[0];
}
static String sanitizeFilename(String name) {
if (name == null)
return null;

2
app/src/main/java/eu/faircode/email/WorkerCleanup.java
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@ -258,7 +258,7 @@ public class WorkerCleanup extends Worker {
// Cleanup attachment files
{
Log.breadcrumb("worker", "cleanup", "attachment files");
File[] attachments = new File(context.getFilesDir(), "attachments").listFiles();
File[] attachments = new File(EntityAttachment.getRoot(context), "attachments").listFiles();
if (attachments != null)
for (File file : attachments)
if (manual || file.lastModified() + KEEP_FILES_DURATION < now)

28
app/src/main/res/layout/fragment_options_misc.xml
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@ -997,6 +997,32 @@
app:layout_constraintTop_toBottomOf="@id/swEmergency"
app:switchPadding="12dp" />
<androidx.appcompat.widget.SwitchCompat
android:id="@+id/swExternalStorage"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginTop="12dp"
android:drawableStart="@drawable/twotone_warning_24"
android:drawablePadding="6dp"
android:text="@string/title_advanced_external_storage"
app:drawableTint="?attr/colorWarning"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/swWorkManager"
app:switchPadding="12dp" />
<TextView
android:id="@+id/tvExternalStorageFolder"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:text="/data/data/..."
android:textAppearance="@style/TextAppearance.AppCompat.Small"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/swExternalStorage" />
<androidx.appcompat.widget.SwitchCompat
android:id="@+id/swIntegrity"
android:layout_width="0dp"
@ -1006,7 +1032,7 @@
android:text="@string/title_advanced_integrity"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@id/swWorkManager"
app:layout_constraintTop_toBottomOf="@id/tvExternalStorageFolder"
app:switchPadding="12dp" />
<androidx.appcompat.widget.SwitchCompat

1
app/src/main/res/values/strings.xml
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@ -884,6 +884,7 @@
<string name="title_advanced_autostart" translatable="false">Autostart app</string>
<string name="title_advanced_emergency" translatable="false">Write emergency file</string>
<string name="title_advanced_work_manager" translatable="false">Initialize work manager</string>
<string name="title_advanced_external_storage" translatable="false">Use external storage</string>
<string name="title_advanced_integrity" translatable="false">sqlite integrity check</string>
<string name="title_advanced_wal" translatable="false">sqlite WAL</string>
<string name="title_advanced_checkpoints" translatable="false">sqlite checkpoints</string>

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