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Commit 5abacddf authored by Jin Seok Park's avatar Jin Seok Park
Browse files

Rename temp file to use a valid image file extension 

MediaProvider added a restriction in R for apps targeting SDK 30 to
not allow .tmp files in image file directories such as "Pictures" and
"DCIM". This CL renames the temp file to avoid this restriction.

Also added test to check for writing to FileDescriptor instances.

Bug: 160874777
Test: atest CtsMediaTestCases:android.media.cts.ExifInterfaceTest
    Also tested with an image file inside /Pictures
Change-Id: Iedb548651c0048b0aecc4b34e9c94f778cf5d1e0
parent b19564f7

media/java/android/media/ExifInterface.java

+5 −1
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ import java.util.Locale; 
import java.util.Map;

import java.util.Set;

import java.util.TimeZone;

import java.util.UUID;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

import java.util.zip.CRC32;
@@ -2081,7 +2082,10 @@ public class ExifInterface { 
        try {

            // Move the original file to temporary file.

            if (mFilename != null) {

                tempFile = new File(mFilename + ".tmp");

                String parent = originalFile.getParent();

                String name = originalFile.getName();

                String tempPrefix = UUID.randomUUID().toString() + "_";

                tempFile = new File(parent, tempPrefix + name);

                if (!originalFile.renameTo(tempFile)) {

                    throw new IOException("Couldn't rename to " + tempFile.getAbsolutePath());

                }