// Delete file from the server
private void DeleteFile(HttpContext context)
{
var _getlen = 10;
var fileName = context.Request["f"];
var fileExt = fileName.Remove(0, fileName.LastIndexOf('.')).ToLower();
var hasThumb = Regex.Match(fileName.ToLower(), AmazonHelper.ImgExtensions()).Success;
var keyName = GetKeyName(context, HttpUtility.UrlDecode(context.Request["f"]));
var client = AmazonHelper.GetS3Client();
var extrequest = new GetObjectRequest()
.WithByteRange(0, _getlen)
.WithKey(keyName)
.WithBucketName(StorageRoot);
var extresponse = client.GetObject(extrequest);
var length = extresponse.ContentLength;
extresponse.Dispose();
if (length == _getlen + 1)
{
var delrequest = new DeleteObjectRequest()
.WithKey(keyName)
.WithBucketName(StorageRoot);
var delresponse = client.DeleteObject(delrequest);
delresponse.Dispose();
if (hasThumb)
{
try
{
keyName = keyName.Replace(fileName, "thumbs/" + fileName.Replace(fileExt, ".png"));
var thumbcheck = new GetObjectRequest()
.WithByteRange(0, _getlen)
.WithKey(keyName)
.WithBucketName(StorageRoot);
var thumbCheckResponse = client.GetObject(thumbcheck);
length = extresponse.ContentLength;
thumbCheckResponse.Dispose();
if (length == _getlen + 1)
{
var thumbdelrequest = new DeleteObjectRequest()
.WithKey(keyName)
.WithBucketName(StorageRoot);
var thumbdelresponse = client.DeleteObject(thumbdelrequest);
delresponse.Dispose();
}
}
catch (Exception ex)
{
var messg = ex.Message;
}
}
}
}
private void ListCurrentFiles(HttpContext context)
{
var bucket = ConfigurationManager.AppSettings["Assets_Amazon_Bucket"];
var prefix = GetPrefix(context);
var doctype = context.Request["doctype"];
var files = new List <AmazonFilesStatus>();
var client = AmazonHelper.GetS3Client();
var request = new ListObjectsRequest().WithBucketName(bucket).WithDelimiter("/").WithPrefix(prefix);
var l = client.ListObjects(request);
foreach (var fl in l.S3Objects)
{
if (fl.Size > 0)
{
if (String.IsNullOrWhiteSpace(doctype) || (doctype == getDocType(fl.Key)))
{
var fs = new AmazonFilesStatus(fl, bucket, prefix);
files.Add(fs);
}
}
}
var typeObj = new Dictionary <String, String>();
typeObj.Add("doc", AmazonHelper.DocExtensions());
typeObj.Add("image", AmazonHelper.ImgExtensions());
typeObj.Add("media", AmazonHelper.MediaExtensions());
var retObj = new FileReturn()
{
Files = files, AssetTypes = typeObj
};
string jsonObj = js.Serialize(retObj);
context.Response.AddHeader("Content-Disposition", "inline, filename=\"files.json\"");
context.Response.Write(jsonObj);
context.Response.ContentType = "application/json";
}
public AmazonFilesStatus(S3Object s3File, string bucket, string prefix)
{
var filename = s3File.Key.Replace(prefix, "");
var fileExt = filename.Remove(0, filename.LastIndexOf('.'));
type = getContentTypeByExtension(fileExt);
isimage = Regex.Match(filename.ToLower(), AmazonHelper.ImgExtensions()).Success;
var client = AmazonHelper.GetS3Client();
var metareq = new GetObjectMetadataRequest().WithBucketName(bucket).WithKey(s3File.Key);
var meta = client.GetObjectMetadata(metareq);
var height = 0;
var width = 0;
if (isimage)
{
height = String.IsNullOrWhiteSpace(meta.Headers["x-amz-meta-height"])? 0 : Int32.Parse(meta.Headers["x-amz-meta-height"]);
width = String.IsNullOrWhiteSpace(meta.Headers["x-amz-meta-width"])? 0 : Int32.Parse(meta.Headers["x-amz-meta-width"]);
}
var size = Convert.ToInt32(s3File.Size);
SetValues(filename, bucket, prefix, size, height, width);
}
// Upload entire file
private void UploadWholeFile(HttpContext context, List <AmazonFilesStatus> statuses)
{
for (int i = 0; i < context.Request.Files.Count; i++)
{
var file = context.Request.Files[i];
MemoryStream thumbStream = new MemoryStream();
var fileExt = file.FileName.Remove(0, file.FileName.LastIndexOf('.')).ToLower();
var needsThumb = Regex.Match(file.FileName.ToLower(), AmazonHelper.ImgExtensions()).Success;
var keyName = GetKeyName(context, file.FileName.ToLower());
var len = file.ContentLength;
var height = 0;
var width = 0;
if (needsThumb)
{
file.InputStream.CopyTo(thumbStream);
}
var client = AmazonHelper.GetS3Client();
var request = new PutObjectRequest()
.WithKey(keyName)
.WithBucketName(StorageRoot)
.WithContentType(file.ContentType)
.WithCannedACL(S3CannedACL.PublicRead)
.WithAutoCloseStream(true)
.WithStorageClass(S3StorageClass.ReducedRedundancy)
.WithInputStream(file.InputStream);
if (needsThumb)
{
Image img = Image.FromStream(thumbStream);
height = img.Height;
width = img.Width;
thumbStream.Position = 0;
request.AddHeader("x-amz-meta-width", width.ToString());
request.AddHeader("x-amz-meta-height", height.ToString());
var orientation = width > height ? "h" : "v";
request.AddHeader("x-amz-meta-orient", orientation);
}
var response = client.PutObject((PutObjectRequest)request);
response.Dispose();
if (needsThumb)
{
var thumbKeyName = VirtualPathUtility.RemoveTrailingSlash(keyName.Replace(file.FileName.ToLower(), "")) + "/thumbs/" + file.FileName.ToLower().Replace(fileExt, ".png");
var thumbImageStream = GetThumbnail(thumbStream);
var thumbrequest = new PutObjectRequest()
.WithKey(thumbKeyName)
.WithBucketName(StorageRoot)
.WithContentType("image/png")
.WithCannedACL(S3CannedACL.PublicRead)
.WithAutoCloseStream(true)
.WithStorageClass(S3StorageClass.ReducedRedundancy)
.WithInputStream(thumbImageStream);
var thumbresponse = client.PutObject((PutObjectRequest)thumbrequest);
thumbStream.Dispose();
}
var fileStatus = new AmazonFilesStatus(file.FileName.ToLower(), StorageRoot, GetPrefix(context), len, height, width);
//string fullName = Path.GetFileName(file.FileName);
statuses.Add(fileStatus);
}
}
private string getDocType(string key)
{
var fileExt = key.Remove(0, key.LastIndexOf('.')).ToLower();
return(Regex.Match(key.ToLower(), AmazonHelper.ImgExtensions()).Success ? "image" : "doc");
}
