/// <summary>
/// Writes a stream to the blob.
/// </summary>
/// <param name="blobName">Virtual blob name.</param>
/// <param name="blobStream">The <see cref="Stream"/> with data to be writen to the blob.</param>
public virtual void WriteStream(string blobName, Stream blobStream)
{
blobName = blobName ?? throw new ArgumentNullException(nameof(blobName), nameof(CloudinaryStorageService));
blobStream = blobStream ?? throw new ArgumentNullException(nameof(blobStream), nameof(CloudinaryStorageService));
var blobInfo = BlobInfo.FromName(blobName);
if (blobInfo == null)
{
throw new ArgumentException(nameof(CloudinaryStorageService), nameof(blobName));
}
var rawUploadParams = new RawUploadParams();
rawUploadParams.File = new FileDescription(blobName, blobStream);
rawUploadParams.PublicId = GetPublicId(blobName);
var result = _client.Upload(rawUploadParams);
}
public ActionResult Download(string blobName, string donloadFileLabel)
{
var blobInfo = BlobInfo.FromName(blobName);
var blobStream = _blobService.Download(blobInfo);
if (blobStream.IsNull())
{
return(ErrorResult(HttpStatusCode.NotFound));
}
var contentDisposition = new ContentDisposition
{
FileName = blobInfo.BuildDownloadFileName(donloadFileLabel),
Inline = false
};
Response.AppendHeader("Content-Disposition", contentDisposition.ToString());
return(File(blobStream, blobInfo.ContentType));
}
public Uri GetThumbEndpoint(string blobName, string label, int?width = null, int?height = null)
{
var blobInfo = BlobInfo.FromName(blobName);
if (blobInfo == null)
{
return(null);
}
width = width ?? 0;
height = height ?? 0;
var instructions = new Instructions();
if (width > 0 && height > 0)
{
instructions.Width = width;
instructions.Height = height;
}
else if (width > 0 || height > 0)
{
if (width > 0)
{
instructions.Width = width;
}
if (height > 0)
{
instructions.Height = height;
}
}
else
{
instructions.Cache = ServerCacheMode.Always;
}
instructions.Mode = FitMode.Crop;
return(GetThumbEndpoint(blobName, label, instructions));
}
public Uri GetThumbnailEndpoint(string blobName, string label, int?width = null, int?height = null)
{
var blobInfo = BlobInfo.FromName(blobName) ?? new BlobInfo("placeholder.png");
// ToDo: Cache verification.
if (!_storageService.Exists(blobInfo.Name))
{
label = (label?.First().ToString() ?? "?").ToUpper();
return(BuildUriBase64(blobInfo, label, width, height));
}
if (!blobInfo.ContentType.Contains("image"))
{
var background = _configs.DefaultThumbBackgroundHexColor;
var foreground = _configs.DefaultThumbForegroundHexColor;
switch (blobInfo.Extension)
{
case "pdf":
background = "#e81f01";
foreground = "#FFFFFF";
break;
case "zip":
background = "#FFE693";
foreground = "#afafaf";
break;
}
var docLabel = $".{blobInfo.Extension.Trim('.')}";
var thumbInfo = BlobInfo.FromName(blobInfo.GetThumbnailName());
return(BuildUriBase64(thumbInfo, docLabel, width, height, background, foreground));
}
return(_thumbService.GetThumbEndpoint(blobName, label, width, height));
}
/// <summary>
/// Get the endpoint to the blob within the storage service.
/// </summary>
/// <param name="blobName">Virtual blob name.</param>
/// <returns>The <see cref="Uri"/> pointing to the bob file.</returns>
public virtual Uri GetEndpoint(string blobName)
{
var blobInfo = BlobInfo.FromName(blobName);
if (blobInfo == null)
{
return(null);
}
var contentType = blobInfo.ContentType;
if (contentType.Contains("image"))
{
return(new Uri(_client.Api.UrlImgUp.CSubDomain(true).UseRootPath(true).BuildUrl(blobName), UriKind.Absolute));
}
if (contentType.Contains("video"))
{
return(new Uri(_client.Api.UrlVideoUp.CSubDomain(true).UseRootPath(true).BuildUrl(blobName), UriKind.Absolute));
}
return(new Uri(_client.Api.Url.CSubDomain(true).BuildUrl(blobName), UriKind.Absolute));
}
/// <summary>
/// Get a endpoint to access the thumbnail picture.
/// </summary>
/// <param name="blobName">Virtual blob name.</param>
/// <param name="label">A readable label to associate with the thumbnail.</param>
/// <param name="width">The expected width or null for the full size.</param>
/// <param name="height">The expected height or null for the full size.</param>
/// <returns>A <see cref="Uri"/> pointing to the thumbnail picture.</returns>
public Uri GetThumbEndpoint(string blobName, string label, int?width = null, int?height = null)
{
var blobInfo = BlobInfo.FromName(blobName);
if (blobInfo == null)
{
return(null);
}
width = width ?? 0;
height = height ?? 0;
var transformation = new Transformation();
if (width > 0 && height > 0)
{
transformation = transformation.Width(width);
transformation = transformation.Height(height);
}
else if (width > 0 || height > 0)
{
if (width > 0)
{
transformation = transformation.Width(width);
}
if (height > 0)
{
transformation = transformation.Height(height);
}
}
transformation = transformation.Crop("fill");
transformation = transformation.Gravity("faces:center");
return(GetThumbEndpoint(blobName, label, true, transformation));
}
