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Share media from within Media Preview and share QR code image.
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62 changes: 62 additions & 0 deletions
62
app/src/main/java/org/thoughtcrime/securesms/providers/BaseContentProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| package org.thoughtcrime.securesms.providers; | ||
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| import android.content.ContentProvider; | ||
| import android.content.Context; | ||
| import android.content.pm.ProviderInfo; | ||
| import android.database.Cursor; | ||
| import android.database.MatrixCursor; | ||
| import android.provider.OpenableColumns; | ||
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| import androidx.annotation.NonNull; | ||
| import androidx.annotation.Nullable; | ||
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| import java.util.ArrayList; | ||
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| abstract class BaseContentProvider extends ContentProvider { | ||
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| private static final String[] COLUMNS = {OpenableColumns.DISPLAY_NAME, OpenableColumns.SIZE}; | ||
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| /** | ||
| * Sanity checks the security like FileProvider does. | ||
| */ | ||
| @Override | ||
| public void attachInfo(@NonNull Context context, @NonNull ProviderInfo info) { | ||
| super.attachInfo(context, info); | ||
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| if (info.exported) { | ||
| throw new SecurityException("Provider must not be exported"); | ||
| } | ||
| if (!info.grantUriPermissions) { | ||
| throw new SecurityException("Provider must grant uri permissions"); | ||
| } | ||
| } | ||
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| protected static Cursor createCursor(@Nullable String[] projection, @NonNull String fileName, long fileSize) { | ||
| if (projection == null || projection.length == 0) { | ||
| projection = COLUMNS; | ||
| } | ||
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| ArrayList<String> cols = new ArrayList<>(projection.length); | ||
| ArrayList<Object> values = new ArrayList<>(projection.length); | ||
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| for (String col : projection) { | ||
| if (OpenableColumns.DISPLAY_NAME.equals(col)) { | ||
| cols.add(OpenableColumns.DISPLAY_NAME); | ||
| values.add(fileName); | ||
| } else if (OpenableColumns.SIZE.equals(col)) { | ||
| cols.add(OpenableColumns.SIZE); | ||
| values.add(fileSize); | ||
| } | ||
| } | ||
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| MatrixCursor cursor = new MatrixCursor(cols.toArray(new String[0]), 1); | ||
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| cursor.addRow(values.toArray(new Object[0])); | ||
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| return cursor; | ||
| } | ||
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| protected static String createFileNameForMimeType(String mimeType) { | ||
| return mimeType.replace('/', '.'); | ||
| } | ||
| } |
110 changes: 110 additions & 0 deletions
110
app/src/main/java/org/thoughtcrime/securesms/providers/BlobContentProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package org.thoughtcrime.securesms.providers; | ||
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| import android.content.ContentValues; | ||
| import android.database.Cursor; | ||
| import android.net.Uri; | ||
| import android.os.MemoryFile; | ||
| import android.os.ParcelFileDescriptor; | ||
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| import androidx.annotation.NonNull; | ||
| import androidx.annotation.Nullable; | ||
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| import org.thoughtcrime.securesms.dependencies.ApplicationDependencies; | ||
| import org.thoughtcrime.securesms.logging.Log; | ||
| import org.thoughtcrime.securesms.util.MemoryFileUtil; | ||
| import org.thoughtcrime.securesms.util.Util; | ||
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| import java.io.FileNotFoundException; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.io.OutputStream; | ||
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| public final class BlobContentProvider extends BaseContentProvider { | ||
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| private static final String TAG = Log.tag(BlobContentProvider.class); | ||
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| @Override | ||
| public boolean onCreate() { | ||
| Log.i(TAG, "onCreate()"); | ||
| return true; | ||
| } | ||
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| @Override | ||
| public ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode) throws FileNotFoundException { | ||
| Log.i(TAG, "openFile() called: " + uri); | ||
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| try { | ||
| try (InputStream stream = BlobProvider.getInstance().getStream(ApplicationDependencies.getApplication(), uri)) { | ||
| Long fileSize = BlobProvider.getFileSize(uri); | ||
| if (fileSize == null) { | ||
| Log.w(TAG, "No file size available"); | ||
| throw new FileNotFoundException(); | ||
| } | ||
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| return getParcelStreamForStream(stream, Util.toIntExact(fileSize)); | ||
| } | ||
| } catch (IOException e) { | ||
| throw new FileNotFoundException(); | ||
| } | ||
| } | ||
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| private static @NonNull ParcelFileDescriptor getParcelStreamForStream(@NonNull InputStream in, int fileSize) throws IOException { | ||
| MemoryFile memoryFile = new MemoryFile(null, fileSize); | ||
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| try (OutputStream out = memoryFile.getOutputStream()) { | ||
| Util.copy(in, out); | ||
| } | ||
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| return MemoryFileUtil.getParcelFileDescriptor(memoryFile); | ||
| } | ||
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| @Nullable | ||
| @Override | ||
| public Cursor query(@NonNull Uri uri, @Nullable String[] projection, @Nullable String selection, @Nullable String[] selectionArgs, @Nullable String sortOrder) { | ||
| Log.i(TAG, "query() called: " + uri); | ||
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| if (projection == null || projection.length <= 0) return null; | ||
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| String mimeType = BlobProvider.getMimeType(uri); | ||
| String fileName = BlobProvider.getFileName(uri); | ||
| Long fileSize = BlobProvider.getFileSize(uri); | ||
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| if (fileSize == null) { | ||
| Log.w(TAG, "No file size"); | ||
| return null; | ||
| } | ||
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| if (mimeType == null) { | ||
| Log.w(TAG, "No mime type"); | ||
| return null; | ||
| } | ||
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| if (fileName == null) { | ||
| fileName = createFileNameForMimeType(mimeType); | ||
| } | ||
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| return createCursor(projection, fileName, fileSize); | ||
| } | ||
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| @Nullable | ||
| @Override | ||
| public String getType(@NonNull Uri uri) { | ||
| return BlobProvider.getMimeType(uri); | ||
| } | ||
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| @Nullable | ||
| @Override | ||
| public Uri insert(@NonNull Uri uri, @Nullable ContentValues values) { | ||
| return null; | ||
| } | ||
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| @Override | ||
| public int delete(@NonNull Uri uri, @Nullable String selection, @Nullable String[] selectionArgs) { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public int update(@NonNull Uri uri, @Nullable ContentValues values, @Nullable String selection, @Nullable String[] selectionArgs) { | ||
| return 0; | ||
| } | ||
| } |
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