public static AttachmentStream GetAttachmentStream(MailAttachment attachment)
{
if (attachment != null)
{
var storage = MailDataStore.GetDataStore(attachment.tenant);
var attachmentPath = MailStoragePathCombiner.GerStoredFilePath(attachment);
var result = new AttachmentStream
{
FileStream = storage.GetReadStream("", attachmentPath),
FileName = attachment.fileName
};
return(result);
}
throw new InvalidOperationException("Attachment not found");
}
public static string GetPreSignedUri(int fileId, int tenant, string user, string stream, int fileNumber,
string fileName, IDataStore dataStore)
{
var attachmentPath = GetFileKey(user, stream, fileNumber, fileName);
if (dataStore == null)
{
dataStore = MailDataStore.GetDataStore(tenant);
}
string url;
if (dataStore is S3Storage)
{
var contentDispositionFileName = ContentDispositionUtil.GetHeaderValue(fileName, withoutBase: true);
var headersForUrl = new [] { "Content-Disposition:" + contentDispositionFileName };
url = dataStore.GetPreSignedUri("", attachmentPath, TimeSpan.FromMinutes(10), headersForUrl).ToString();
}
else
{
//TODO: Move url to config;
attachmentPath = "/addons/mail/httphandlers/download.ashx";
var uriBuilder = new UriBuilder(CommonLinkUtility.GetFullAbsolutePath(attachmentPath));
if (uriBuilder.Uri.IsLoopback)
{
uriBuilder.Host = Dns.GetHostName();
}
var query = uriBuilder.Query;
query += "attachid=" + fileId + "&";
query += "stream=" + stream + "&";
query += FilesLinkUtility.AuthKey + "=" + EmailValidationKeyProvider.GetEmailKey(fileId + stream);
url = uriBuilder.Uri + "?" + query;
}
return(url);
}
