public async Task <SlideShowPictureDto> UpdateAsync(string fileName, SlideShowPictureDto dto)
{
if (string.IsNullOrWhiteSpace(fileName) ||
!ImageManipulator.IsImageStream(dto.Base64Picture))
{
throw new ArgumentException();
}
var b64Part = (dto.Base64Picture == null)? null : GetBase64Part(dto.Base64Picture);
var file = await BlobContainer.GetAllBytesOrNullAsync(fileName) ?? throw new FileNotFoundException();
var xmlDoc = new XmlDocument();
var settings = GetReaderSettings();
using var ms = new MemoryStream(file);
using var reader = XmlReader.Create(ms, settings);
xmlDoc.Load(reader);
var slideShowElm = xmlDoc.DocumentElement;
var imgElm = slideShowElm.FirstChild;
var b64txtNode = imgElm.FirstChild as XmlText;
b64txtNode.InnerText = b64Part ?? b64txtNode.InnerText;
slideShowElm.SetAttribute("uri", (dto.Uri == null) ? slideShowElm.GetAttribute("uri") : dto.Uri.ToString());
slideShowElm.SetAttribute("name", dto.Name ?? slideShowElm.GetAttribute("name"));
var bytes = Encoding.UTF8.GetBytes(xmlDoc.InnerXml);
await BlobContainer.SaveAsync(fileName, bytes, true);
return(await GetAsync(fileName));
}
public async Task <SlideShowPictureDto> GetAsync(string name)
{
if (string.IsNullOrEmpty(name) || string.IsNullOrWhiteSpace(name))
{
throw new ArgumentException();
}
var buffer = await BlobContainer.GetAllBytesOrNullAsync(name) ?? throw new FileNotFoundException();
var xmlStr = Encoding.UTF8.GetString(buffer);
var xmlDoc = CreateXmlDoc();
xmlDoc.LoadXml(xmlStr);
var slideShowElm = xmlDoc.DocumentElement;
var imgElm = slideShowElm.FirstChild;
var b64txtNode = imgElm.FirstChild as XmlText;
var imgTypeAttr = imgElm.Attributes.Item(0);
if (imgTypeAttr.LocalName != "imgType")
{
throw new Exception();
}
var dto = new SlideShowPictureDto {
Name = slideShowElm.GetAttribute("name"),
Uri = slideShowElm.GetAttribute("uri"),
Base64Picture = SetB64ImgContentType(b64txtNode.InnerText, imgTypeAttr.InnerText),
FileName = name
};
return(dto);
}
public async Task <SlideShowPictureDto> SaveXmlAsync(SlideShowPictureDto dto)
{
if (string.IsNullOrWhiteSpace(dto.Base64Picture) || !ImageManipulator.IsImageStream(dto.Base64Picture))
{
throw new ArgumentException();
}
var base64Part = GetBase64Part(dto.Base64Picture);
var buffer = ImageManipulator.ResizeImage(base64Part, Options.Width, Options.Height, Options.ImageFormat);
try
{
var xmlDoc = CreateXmlDoc();
var slideShowElm = xmlDoc.DocumentElement;
var imgElm = slideShowElm.FirstChild;
var imgTypeAttr = xmlDoc.CreateAttribute("imgType");
imgTypeAttr.Value = Options.ImageFormat.ToString();
slideShowElm.SetAttribute("name", dto.Name);
slideShowElm.SetAttribute("uri", (dto.Uri == null)? "" : dto.Uri.ToString());
imgElm.Attributes.Append(imgTypeAttr);
imgElm.AppendChild(xmlDoc.CreateTextNode(buffer));
var name = await SaveAsync(xmlDoc.OuterXml);
return(await GetAsync(name));
}
//catch(XmlException ex)
//{
//}
//catch(XmlSchemaValidationException ex)
//{
//}
catch (Exception ex)
{
throw ex;
}
}
public async Task <SlideShowPictureDto> Update([FromRoute] string fileName, [FromBody] SlideShowPictureDto dto)
{
return(await SlideShowAppService.UpdateAsync(fileName, dto));
}
public async Task <SlideShowPictureDto> Create([FromBody] SlideShowPictureDto dto)
{
return(await SlideShowAppService.SaveAsync(dto));
}
public async Task <SlideShowPictureDto> UpdateAsync(string fileName, SlideShowPictureDto dto)
{
return(await SlideShowPictureManager.UpdateAsync(fileName, dto));
}
public async Task <SlideShowPictureDto> SaveAsync(SlideShowPictureDto dto)
{
return(await SlideShowPictureManager.SaveXmlAsync(dto));
}
