/// <summary>
/// Resolve region of the bucket.
/// </summary>
/// <param name="bucketName"></param>
/// <returns></returns>
private async Task <string> GetRegion(string bucketName)
{
var rgn = "";
// Use user specified region in client constructor if present
if (Region != string.Empty)
{
return(Region);
}
// pick region from endpoint if present
if (!string.IsNullOrEmpty(Endpoint))
{
rgn = Regions.GetRegionFromEndpoint(Endpoint);
}
// Pick region from location HEAD request
if (rgn == string.Empty)
{
if (!BucketRegionCache.Instance.Exists(bucketName))
{
rgn = await BucketRegionCache.Instance.Update(this, bucketName).ConfigureAwait(false);
}
else
{
rgn = BucketRegionCache.Instance.Region(bucketName);
}
}
// Defaults to us-east-1 if region could not be found
return(rgn == string.Empty ? "us-east-1" : rgn);
}
public void TestGetRegion()
{
Dictionary <string, string> endpoint2Region = new Dictionary <string, string>
{
{ "s3.us-east-2.amazonaws.com", "us-east-2" },
{ "s3.amazonaws.com", "" },
{ "testbucket.s3-ca-central-1.amazonaws.com", "ca-central-1" },
{ "mybucket-s3-us-east-2.amazonaws.com", "us-east-2" },
{ "s3.us-west-1.amazonaws.com", "us-west-1" },
{ "mybucket-s3-us-west-1.amazonaws.com", "us-west-1" },
};
foreach (KeyValuePair <string, string> testCase in endpoint2Region)
{
Assert.AreEqual(Regions.GetRegionFromEndpoint(testCase.Key), testCase.Value);
}
}
public void TestGetRegion(string endpoint, string expectedRegion)
{
Assert.AreEqual(expectedRegion, Regions.GetRegionFromEndpoint(endpoint));
}