Book Feedback (#190)

* Remove automatic retry for scanLibraries as if something fails, it wont pass magically. Catch exceptions when opening books for parsing and swallow to ignore the file.

* Delete extra attempts

* Switched to using FirstOrDefault for finding existing series. This will help avoid pointless crashes.

* Updated message when duplicate series are found (not sure how this happens)

* Fixed a negation for deleting volumes where files still exist.

* Implemented the ability to automatically scale the manga reader based on screen size.

* Default to automatic scaling

* Fix an issue where malformed epubs wouldn't be readable due to incorrect keys in the OPF. We now check if key is valid and if not, try to correct it. This makes a page load about a second on malformed books.

* Fixed #176. Refactored the recently added query to be restricted to user's access to libraries.

* Fixed a one off bug with In Progress series

* Implemented the ability to refresh metadata of just a single series directly

* Fixed a parser case where Series c000 (v01) would fail to parse the series

* Fixed #189. In Progress now returns data properly for library access and in multiple libraries.

* Fixed #188 by adding an extra message for bad login and updating UI

* Generate a fallback for table of contents by parsing the toc file (if we can find one)

API/Controllers/AccountController.cs

@@ -132,7 +132,7 @@ namespace API.Controllers
             var result = await _signInManager
                 .CheckPasswordSignInAsync(user, loginDto.Password, false);
 
-            if (!result.Succeeded) return Unauthorized();
+            if (!result.Succeeded) return Unauthorized("Your credentials are not correct.");
             
             // Update LastActive on account
             user.LastActive = DateTime.Now;

API/Controllers/BookController.cs

@@ -64,7 +64,7 @@ namespace API.Controllers
             
             var navItems = await book.GetNavigationAsync();
             var chaptersList = new List<BookChapterItem>();
-            
+
             foreach (var navigationItem in navItems)
             {
                 if (navigationItem.NestedItems.Count > 0)
@@ -116,6 +116,53 @@ namespace API.Controllers
                     }
                 }
             }
+
+            if (chaptersList.Count == 0)
+            {
+                // Generate from TOC
+                var tocPage = book.Content.Html.Keys.FirstOrDefault(k => k.ToUpper().Contains("TOC"));
+                if (tocPage == null) return Ok(chaptersList);
+                
+                // Find all anchor tags, for each anchor we get inner text, to lower then titlecase on UI. Get href and generate page content
+                var doc = new HtmlDocument();
+                var content = await book.Content.Html[tocPage].ReadContentAsync();
+                doc.LoadHtml(content);
+                var anchors = doc.DocumentNode.SelectNodes("//a");
+                if (anchors == null) return Ok(chaptersList);
+                
+                foreach (var anchor in anchors)
+                {
+                    if (anchor.Attributes.Contains("href"))
+                    {
+                        var key = BookService.CleanContentKeys(anchor.Attributes["href"].Value).Split("#")[0];
+                        if (!mappings.ContainsKey(key))
+                        {
+                            // Fallback to searching for key (bad epub metadata)
+                            var correctedKey = book.Content.Html.Keys.SingleOrDefault(s => s.EndsWith(key));
+                            if (!string.IsNullOrEmpty(correctedKey))
+                            {
+                                key = correctedKey;
+                            }
+                        }
+                        if (!string.IsNullOrEmpty(key) && mappings.ContainsKey(key))
+                        {
+                            var part = string.Empty;
+                            if (anchor.Attributes["href"].Value.Contains("#"))
+                            {
+                                part = anchor.Attributes["href"].Value.Split("#")[1];
+                            }
+                            chaptersList.Add(new BookChapterItem()
+                            {
+                                Title = anchor.InnerText,
+                                Page = mappings[key],
+                                Part = part,
+                                Children = new List<BookChapterItem>()
+                            });
+                        }
+                    }
+                }
+                
+            }
             return Ok(chaptersList);
         }