fixup! Add raw endpoint.

Fix rebase conflict.

src/server/internalServer.cpp

@@ -894,11 +894,12 @@ std::unique_ptr<Response> InternalServer::handle_raw(const RequestContext& reque
      bookName = request.get_url_part(1);
      kind = request.get_url_part(2);
   } catch (const std::out_of_range& e) {
-     return Response::build_404(*this, request, bookName, "", "");
+     return Response::build_404(*this, request.get_full_url(), bookName, "", "");
   }
 
   if (kind != "meta" && kind!= "content") {
-    return Response::build_404(*this, request, bookName, "", "");
+    const std::string error_details = kind + " is not a valid request for raw content.";
+    return Response::build_404(*this, request.get_full_url(), bookName, "", "");
   }
 
   std::shared_ptr<zim::Archive> archive;
@@ -908,7 +909,8 @@ std::unique_ptr<Response> InternalServer::handle_raw(const RequestContext& reque
   } catch (const std::out_of_range& e) {}
 
   if (archive == nullptr) {
-    return Response::build_404(*this, request, bookName, "", "");
+    const std::string error_details = "No such book: " + bookName;
+    return Response::build_404(*this, request.get_full_url(), bookName, "", error_details);
   }
 
   auto itemPath = request.get_url().substr(bookName.size()+kind.size()+6);
@@ -931,7 +933,8 @@ std::unique_ptr<Response> InternalServer::handle_raw(const RequestContext& reque
     if (m_verbose.load()) {
       printf("Failed to find %s\n", itemPath.c_str());
     }
-    return Response::build_404(*this, request, bookName, getArchiveTitle(*archive), "");
+    const std::string error_details = "Cannot find " + kind + " entry " + itemPath;
+    return Response::build_404(*this, request.get_full_url(), bookName, getArchiveTitle(*archive), error_details);
   }
 }