public static AttachmentViewData Create(AttachmentInfo attachmentInfo, UserContext context, bool isOwner)
{
var r = AttachmentSecurityTools.ComputeRequestStr(context.DistrictId.Value, context.SchoolLocalId.Value, context.UserId, attachmentInfo.Attachment.Id);
var model = Create(attachmentInfo, isOwner);
model.PublicUrl = $"/Attachment/PublicAttachment?r={Uri.EscapeDataString(r)}";
return(model);
}
public ActionResult PublicAttachment(string r, bool?needsDownload, int?width, int?height)
{
if (string.IsNullOrWhiteSpace(r))
{
Response.StatusCode = 400;
Response.StatusDescription = HttpWorkerRequest.GetStatusDescription(Response.StatusCode);
return(null);
}
MasterLocator = ServiceLocatorFactory.CreateMasterSysAdmin();
Guid districtId;
int schoolId;
Guid userId;
int attachmentId;
if (!AttachmentSecurityTools.TryParseAndVerifyRequestStr(r, out districtId, out schoolId, out userId, out attachmentId))
{
Response.StatusCode = 400;
Response.StatusDescription = HttpWorkerRequest.GetStatusDescription(Response.StatusCode);
return(null);
}
var user = MasterLocator.UserService.GetById(userId);
SchoolLocator = ServiceLocatorFactory.CreateSchoolLocator(new SchoolUser
{
DistrictRef = districtId,
SchoolRef = schoolId,
UserRef = user.SchoolUsers.First(x => x.SchoolRef == schoolId).UserRef,
School = MasterLocator.SchoolService.GetById(districtId, schoolId),
User = new User
{
Login = string.Empty,
LoginInfo = new UserLoginInfo
{
SisToken = string.Empty,
SisTokenExpires = null
},
DistrictRef = districtId,
District = MasterLocator.DistrictService.GetByIdOrNull(districtId)
}
});
var attContentInfo = SchoolLocator.AttachementService.GetAttachmentContent(attachmentId);
if (attContentInfo == null)
{
Response.StatusCode = 404;
Response.StatusDescription = HttpWorkerRequest.GetStatusDescription(Response.StatusCode);
return(null);
}
var attName = attContentInfo.Attachment.Name;
var content = attContentInfo.Content;
var contentTypeName = MimeHelper.GetContentTypeByName(attName);
if (MimeHelper.GetTypeByName(attName) == MimeHelper.AttachmenType.Picture && width.HasValue && height.HasValue)
{
content = ImageUtils.Scale(content, width.Value, height.Value);
}
if (needsDownload.HasValue && !needsDownload.Value)
{
Response.AddHeader(CONTENT_DISPOSITION, string.Format(HEADER_FORMAT, attName));
return(File(content, contentTypeName));
}
return(File(content, contentTypeName, attName));
}
