public string GetSecuredUrl(Uri uri)
{
CheckUri(uri);
try
{
using (var client = CreateAmazonS3Client())
{
var absolutePath = HttpUtility.UrlDecode(uri.AbsolutePath);
var key = absolutePath.TrimStart('/');
var request = new GetPreSignedUrlRequest();
request.WithBucketName(bucketName)
.WithKey(key)
.WithExpires(DateTime.UtcNow.Add(tokenExpiryTime));
var url = client.GetPreSignedURL(request);
return(url);
}
}
catch (Exception e)
{
throw new StorageException(string.Format("Failed to get signed URL for file. Uri: {0}.", uri), e);
}
}
public Uri FetchFileUrl(string sObjectKey)
{
AmazonS3 client = AWSClientFactory.CreateAmazonS3Client(S3ACCESSKEY, S3SECRETKEY);
string S3_KEY = ConfigurationManager.AppSettings["AWSS3KEY"];
string BUCKET_NAME = ConfigurationManager.AppSettings["AWSBUCKET"];
GetPreSignedUrlRequest request = new GetPreSignedUrlRequest();
request.WithBucketName(BUCKET_NAME);
request.WithKey(sObjectKey);
request.WithProtocol(Protocol.HTTP);
request.WithExpires(DateTime.Now.AddMinutes(3));
return(new Uri(client.GetPreSignedURL(request), UriKind.Absolute));
}
public string GenerateURL(string objectName)
{
AmazonS3 s3Client = Amazon.AWSClientFactory.CreateAmazonS3Client(AWSKey, AWSSecretKey);
string url = "";
try
{
using (s3Client)
{
GetPreSignedUrlRequest request = new GetPreSignedUrlRequest();
request.WithBucketName(bucketName);
request.WithKey(prefix + objectName);
if (expires == 0)
{
request.WithExpires(DateTime.Now.AddYears(20));
}
else
{
request.WithExpires(DateTime.Now.AddDays(expires));
}
url = s3Client.GetPreSignedURL(request);
}
}
catch (AmazonS3Exception)
{
}
if (!isPrivate)
{
url = url.Substring(0, url.IndexOf("?")); //remove QS
}
if (!https)
{
url = url.Replace(@"https://", @"http://");
}
if (shorten)
{
//create is.gd url
string resp = "";
try
{
string isgd = @"http://is.gd/create.php?format=simple&url=" + System.Uri.EscapeDataString(url);
resp = new System.Net.WebClient().DownloadString(isgd);
}
catch (Exception) { }
if (resp != "")
{
url = resp;
if (appendExt)
{
if (System.IO.Path.GetExtension(objectName).ToLower() == "png")
{
url += "?" + System.IO.Path.GetExtension(objectName).ToLower();
}
else
{
url += "?" + System.IO.Path.GetFileName(objectName).ToLower();
}
}
}
}
return(url);
}
