public void Get_Existing_External_Shareable_Uri(FileProviderLocation location)
{
// Save an external directory file
var root = Platform.AppContext.GetExternalFilesDir(null).AbsolutePath;
var file = CreateFile(root);
// Make sure it is where we expect it to be
Assert.True(FileProvider.IsFileInPublicLocation(file));
// Actually get a safe shareable file uri
var shareableUri = GetShareableUri(file, location);
// Make sure the uri is what we expected
Assert.NotNull(shareableUri);
Assert.Equal("content", shareableUri.Scheme);
Assert.Equal("com.microsoft.maui.essentials.devicetests.fileProvider", shareableUri.Authority);
if (OperatingSystem.IsAndroidVersionAtLeast(29))
{
#pragma warning disable CS0618 // Type or member is obsolete
var externalRoot = AndroidEnvironment.ExternalStorageDirectory.AbsolutePath;
#pragma warning restore CS0618 // Type or member is obsolete
// replace the real root with the providers "root"
var segements = Path.Combine(root.Replace(externalRoot, "external_files", StringComparison.Ordinal), Path.GetFileName(file));
Assert.Equal(segements.Split(Path.DirectorySeparatorChar), shareableUri.PathSegments);
}
}
public void Get_Existing_External_Shareable_Uri(FileProviderLocation location)
{
// Save an external directory file
#if !__ANDROID_29__
var externalRoot = AndroidEnvironment.ExternalStorageDirectory.AbsolutePath;
#endif
var root = Platform.AppContext.GetExternalFilesDir(null).AbsolutePath;
var file = CreateFile(root);
// Make sure it is where we expect it to be
Assert.True(FileProvider.IsFileInPublicLocation(file));
// Actually get a safe shareable file uri
var shareableUri = GetShareableUri(file, location);
// Make sure the uri is what we expected
Assert.NotNull(shareableUri);
Assert.Equal("content", shareableUri.Scheme);
Assert.Equal("com.xamarin.essentials.devicetests.fileProvider", shareableUri.Authority);
#if !__ANDROID_29__
// replace the real root with the providers "root"
var segements = Path.Combine(root.Replace(externalRoot, "external_files"), Path.GetFileName(file));
Assert.Equal(segements.Split(Path.DirectorySeparatorChar), shareableUri.PathSegments);
#endif
}
static Android.Net.Uri GetShareableUri(string file, FileProviderLocation location)
{
try
{
// use the specific location
FileProvider.TemporaryLocation = location;
// get the uri
return(FileSystemUtils.GetShareableFileUri(new ReadOnlyFile(file)));
}
finally
{
// reset the location
FileProvider.TemporaryLocation = FileProviderLocation.PreferExternal;
}
}
static Android.Net.Uri GetShareableUri(string file, FileProviderLocation location)
{
try
{
// use the specific location
FileProvider.TemporaryLocation = location;
// get the uri
return(Platform.GetShareableFileUri(file));
}
finally
{
// reset the location
FileProvider.TemporaryLocation = FileProviderLocation.PreferExternal;
}
}
public void Get_Existing_External_Cache_Shareable_Uri(FileProviderLocation location)
{
// Save an external cache directory file
var file = CreateFile(Platform.AppContext.ExternalCacheDir.AbsolutePath);
// Make sure it is where we expect it to be
Assert.True(FileProvider.IsFileInPublicLocation(file));
// Actually get a safe shareable file uri
var shareableUri = GetShareableUri(file, location);
// Make sure the uri is what we expected
Assert.NotNull(shareableUri);
Assert.Equal("content", shareableUri.Scheme);
Assert.Equal("com.microsoft.maui.essentials.devicetests.fileProvider", shareableUri.Authority);
Assert.Equal(new[] { "external_cache", Path.GetFileName(file) }, shareableUri.PathSegments);
}
public void Get_Shareable_Uri(bool failAccess, FileProviderLocation location)
{
// Always fail to simulate unmounted media
FileProvider.AlwaysFailExternalMediaAccess = failAccess;
try
{
// Save a local cache data directory file
var file = CreateFile(FileSystem.AppDataDirectory);
// Make sure it is where we expect it to be
Assert.False(FileProvider.IsFileInPublicLocation(file));
// Actually get a safe shareable file uri
var shareableUri = GetShareableUri(file, location);
// Determine where the file should be found
var isInternal = failAccess || location == FileProviderLocation.Internal;
var expectedCache = isInternal ? "internal_cache" : "external_cache";
var expectedCacheDir = isInternal
? Platform.AppContext.CacheDir.AbsolutePath
: Platform.AppContext.ExternalCacheDir.AbsolutePath;
// Make sure the uri is what we expected
Assert.NotNull(shareableUri);
Assert.Equal("content", shareableUri.Scheme);
Assert.Equal("com.microsoft.maui.essentials.devicetests.fileProvider", shareableUri.Authority);
Assert.Equal(4, shareableUri.PathSegments.Count);
Assert.Equal(expectedCache, shareableUri.PathSegments[0]);
Assert.Equal("2203693cc04e0be7f4f024d5f9499e13", shareableUri.PathSegments[1]);
Assert.True(Guid.TryParseExact(shareableUri.PathSegments[2], "N", out var guid));
Assert.Equal(Path.GetFileName(file), shareableUri.PathSegments[3]);
// Make sure the underlying file exists
var realPath = Path.Combine(shareableUri.PathSegments.ToArray())
.Replace(expectedCache, expectedCacheDir, StringComparison.Ordinal);
Assert.True(File.Exists(realPath));
}
finally
{
FileProvider.AlwaysFailExternalMediaAccess = false;
}
}
