public static string GetFileStreamUrl(File file)
{
const int uriLengthLimit = 1024;
string fileUri = null;
if (!DocumentServiceHelper.HaveExternalIP())
{
fileUri = DocumentServiceHelper.GetExternalUri(file);
}
if (!string.IsNullOrEmpty(fileUri))
{
return(fileUri);
}
using (var fileDao = Global.DaoFactory.GetFileDao())
{
if (fileDao.IsSupportedPreSignedUri(file))
{
int validateTimespan;
int.TryParse(WebConfigurationManager.AppSettings["files.stream-url-minute"], out validateTimespan);
if (validateTimespan <= 0)
{
validateTimespan = 10;
}
var uri = fileDao.GetPreSignedUri(file, TimeSpan.FromMinutes(validateTimespan)).ToString();
if (uri.Length < uriLengthLimit)
{
return(uri);
}
Global.Logger.Debug("Very long link: " + uri.Length);
}
}
//NOTE: Always build path to handler!
var uriBuilder = new UriBuilder(CommonLinkUtility.GetFullAbsolutePath(FilesLinkUtility.FileHandlerPath));
if (uriBuilder.Uri.IsLoopback)
{
uriBuilder.Host = Dns.GetHostName();
}
var query = uriBuilder.Query;
query += FilesLinkUtility.Action + "=stream&";
query += FilesLinkUtility.FileId + "=" + HttpUtility.UrlEncode(file.ID.ToString()) + "&";
query += FilesLinkUtility.Version + "=" + file.Version + "&";
query += FilesLinkUtility.AuthKey + "=" + EmailValidationKeyProvider.GetEmailKey(file.ID + file.Version.ToString(CultureInfo.InvariantCulture));
return(uriBuilder.Uri + "?" + query);
}
public static string GetFileStreamUrl(File file)
{
if (file == null)
{
throw new ArgumentNullException("file", FilesCommonResource.ErrorMassage_FileNotFound);
}
const int uriLengthLimit = 1024;
string fileUri = null;
if (!DocumentServiceHelper.HaveExternalIP())
{
fileUri = DocumentServiceHelper.GetExternalUri(file);
}
if (!string.IsNullOrEmpty(fileUri))
{
return(fileUri);
}
using (var fileDao = Global.DaoFactory.GetFileDao())
{
if (fileDao.IsSupportedPreSignedUri(file))
{
var uri = fileDao.GetPreSignedUri(file, Global.StreamUrlExpire).ToString();
if (uri.Length < uriLengthLimit)
{
return(uri);
}
Global.Logger.Debug("Very long link: " + uri.Length);
}
}
//NOTE: Always build path to handler!
var uriBuilder = new UriBuilder(CommonLinkUtility.GetFullAbsolutePath(FilesLinkUtility.FileHandlerPath));
Global.Logger.Debug("FileStreamUrl: " + uriBuilder.Uri);
var query = uriBuilder.Query;
query += FilesLinkUtility.Action + "=stream&";
query += FilesLinkUtility.FileId + "=" + HttpUtility.UrlEncode(file.ID.ToString()) + "&";
query += FilesLinkUtility.Version + "=" + file.Version + "&";
query += FilesLinkUtility.AuthKey + "=" + EmailValidationKeyProvider.GetEmailKey(file.ID + file.Version.ToString(CultureInfo.InvariantCulture));
return(uriBuilder.Uri + "?" + query);
}
