public async Task <IActionResult> OnGet(int?docAnnId, string book)
{
if (docAnnId == null)
{
return(NotFound());
}
// load the document requested, checking that the current user created it.
DocAnn = _context.DocumentAnnotations.Include(da => da.User).Include(da => da.Text).SingleOrDefault(
da =>
da.DocumentId == docAnnId);
if (DocAnn is null)
{
return(NotFound());
}
// what to do with different visibilities: private documents can only be read by the author, limited by the author and specified other
// people, and public by anyone with the url
switch (DocAnn.Visibility)
{
case DocumentVisibility.Public:
// do nothing, as anyone is allowed
Log.Information(
"Allowed anonymous access to document {docAnnId} as public access has been permitted",
docAnnId);
break;
case DocumentVisibility.Limited:
AppUser user = await _userManager.GetUserAsync(User);
if (!DocAnn.AllowedUsers.Contains(user.Email))
{
return(NotFound());
}
Log.Information(
"Allowed user {currentUser} access to document {docAnnId} as they have been allowed so",
user.Email, docAnnId);
break;
case DocumentVisibility.Private:
default:
if (DocAnn.UserId != GetCurrentUser())
{
return(NotFound());
}
break;
}
TextData = DocAnn.Text;
if (TextData == null)
{
Log.Warning("A user attempted to load a document, {docId} that did not have a valid text, {textId}.",
DocAnn.DocumentId, DocAnn.TextId);
return(NotFound());
}
Text = _loader.LoadText(TextData.Identifier);
if (book is null)
{
// make an assumption, open the last-viewed section of this document
BookNum = DocAnn.LastLocation.BookNumber;
}
else // but book is not
{
// load the first section of the chosen book
BookNum = Text.GetBookIndexFromName(book);
}
// load appropriate annotations
var sectionsWithAnnotations = Book.Sections.Select((s, sectionIndex) => (s, _context.Annotations
.Include(a => a.Highlights).ThenInclude(h => h.Location)
.Where(a =>
a.DocumentId == docAnnId &&
a.Highlights.Any(h => h.Location.BookNumber == BookNum &&
h.Location.SectionNumber == sectionIndex
))
.ToList()));
Annotators = sectionsWithAnnotations.Select(swa => new Annotator.Annotator(swa.Item2, swa.s.Groups))
.ToList();
return(Page());
}