private void DownloadFile(int attachment_id, HttpContext context)
{
var mail_box_manager = new MailBoxManager(0);
var auth = context.Request[FilesLinkUtility.AuthKey];
var open_temp_stream = false;
if (!string.IsNullOrEmpty(auth))
{
var stream = context.Request.QueryString["stream"];
if (!string.IsNullOrEmpty(stream))
{
int validate_timespan;
int.TryParse(WebConfigurationManager.AppSettings["files.stream-url-minute"], out validate_timespan);
if (validate_timespan <= 0) validate_timespan = 5;
var validate_result = EmailValidationKeyProvider.ValidateEmailKey(attachment_id + stream, auth, TimeSpan.FromMinutes(validate_timespan));
if (validate_result != EmailValidationKeyProvider.ValidationResult.Ok)
{
var exc = new HttpException((int)HttpStatusCode.Forbidden, "You don't have enough permission to perform the operation");
//Global.Logger.Error(string.Format("{0} {1}: {2}", CommonLinkUtility.AuthKey, validateResult, context.Request.Url), exc);
throw exc;
}
open_temp_stream = true;
}
}
using (var file = open_temp_stream
? mail_box_manager.GetAttachmentStream(attachment_id, TenantId)
: mail_box_manager.GetAttachmentStream(attachment_id, TenantId, Username))
{
context.Response.AddHeader("Content-Disposition", ContentDispositionUtil.GetHeaderValue(file.FileName));
file.FileStream.StreamCopyTo(context.Response.OutputStream);
}
}
private void DownloadAllZipped(int message_id, HttpContext context)
{
var mail_box_manager = new MailBoxManager(ConfigurationManager.ConnectionStrings["mail"], 0);
var attachments = mail_box_manager.GetMessageAttachments(TenantId, Username, message_id);
if (attachments.Any())
{
using (var zip = new ZipFile())
{
zip.CompressionLevel = CompressionLevel.Level3;
zip.AlternateEncodingUsage = ZipOption.AsNecessary;
zip.AlternateEncoding = Encoding.GetEncoding(Thread.CurrentThread.CurrentCulture.TextInfo.OEMCodePage);
foreach (var attachment in attachments)
{
using (var file = mail_box_manager.GetAttachmentStream(attachment))
{
var filename = file.FileName;
if (zip.ContainsEntry(filename))
{
var counter = 1;
var temp_name = filename;
while (zip.ContainsEntry(temp_name))
{
temp_name = filename;
var suffix = " (" + counter + ")";
temp_name = 0 < temp_name.IndexOf('.')
? temp_name.Insert(temp_name.LastIndexOf('.'), suffix)
: temp_name + suffix;
counter++;
}
filename = temp_name;
}
zip.AddEntry(filename, file.FileStream.GetCorrectBuffer());
}
}
context.Response.AddHeader("Content-Disposition", ContentDispositionUtil.GetHeaderValue(ARCHIVE_NAME));
zip.Save(context.Response.OutputStream);
}
}
}
