public TourRepository(ETourDbContext dbContext, IRemoteFileStorageHandler remoteFileStorageHandler)
{
_dbContext = dbContext;
_remoteFileStorageHandler = remoteFileStorageHandler;
}
public PostRepository(ETourDbContext dbContext, IRemoteFileStorageHandler remoteFileStorageHandler, HtmlDocument doc)
{
_dbContext = dbContext;
_remoteFileStorageHandler = remoteFileStorageHandler;
_doc = doc;
}
// Parse images that use Base64 string for src attribute, upload to remote storage and replace src with hosted image url
public static async Task <IEnumerable <string> > ProcessBase64Images(this HtmlDocument doc, IRemoteFileStorageHandler remoteFileStorageHandler)
{
List <string> uploadedImgUrls = new();
var imgTags = doc.DocumentNode.SelectNodes("//img");
if (imgTags != null)
{
foreach (var img in imgTags)
{
var src = img.Attributes["src"].Value;
// Upload image and set src to the image url
if (src.StartsWith("data:image"))
{
var stream = new MemoryStream(Convert.FromBase64String(src.Split(";base64,")[1]));
src = await remoteFileStorageHandler.UploadAsync(stream, "jpg");
img.Attributes["src"].Value = src;
}
uploadedImgUrls.Add(src);
}
}
return(uploadedImgUrls);
}
