Add `/catalog/v2/illustration` endpoint

src/server/internalServer.h

@@ -82,6 +82,7 @@ class InternalServer {
     std::unique_ptr<Response> handle_catalog_v2_complete_entry(const RequestContext& request, const std::string& entryId);
     std::unique_ptr<Response> handle_catalog_v2_categories(const RequestContext& request);
     std::unique_ptr<Response> handle_catalog_v2_languages(const RequestContext& request);
+    std::unique_ptr<Response> handle_catalog_v2_illustration(const RequestContext& request);
     std::unique_ptr<Response> handle_meta(const RequestContext& request);
     std::unique_ptr<Response> handle_search(const RequestContext& request);
     std::unique_ptr<Response> handle_suggest(const RequestContext& request);

src/server/internalServer_catalog_v2.cpp

@@ -66,6 +66,8 @@ std::unique_ptr<Response> InternalServer::handle_catalog_v2(const RequestContext
     return handle_catalog_v2_categories(request);
   } else if (url == "languages") {
     return handle_catalog_v2_languages(request);
+  } else if (url == "illustration") {
+    return handle_catalog_v2_illustration(request);
   } else {
     return Response::build_404(*this, request.get_full_url(), "", "");
   }
@@ -146,4 +148,18 @@ std::unique_ptr<Response> InternalServer::handle_catalog_v2_languages(const Requ
   );
 }
 
+std::unique_ptr<Response> InternalServer::handle_catalog_v2_illustration(const RequestContext& request)
+{
+  try {
+    const auto bookName  = request.get_url_part(3);
+    const auto bookId = mp_nameMapper->getIdForName(bookName);
+    auto book = mp_library->getBookByIdThreadSafe(bookId);
+    auto size = request.get_argument<unsigned int>("size");
+    auto illustration = book.getIllustration(size);
+    return ContentResponse::build(*this, illustration->getData(), illustration->mimeType);
+  } catch(...) {
+    return Response::build_404(*this, request.get_full_url(), "", "");
+  }
+}
+
 } // namespace kiwix

test/server.cpp

@@ -201,6 +201,7 @@ const ResourceCollection resources200Uncompressible{
   { WITH_ETAG, "/ROOT/meta?content=zimfile&name=publisher" },
   { WITH_ETAG, "/ROOT/meta?content=zimfile&name=favicon" },
   { WITH_ETAG, "/ROOT/meta?content=zimfile&name=Illustration_48x48@1" },
+  { NO_ETAG, "/ROOT/catalog/v2/illustration/zimfile?size=48" },
 
   { WITH_ETAG, "/ROOT/zimfile/I/m/Ray_Charles_classic_piano_pose.jpg" },
 
@@ -276,6 +277,7 @@ const char* urls404[] = {
   "/ROOT/catalog",
   "/ROOT/catalog/non-existent-item",
   "/ROOT/catalogBLABLABLA/root.xml",
+  "/ROOT/catalog/v2/illustration/zimfile?size=96",
   "/ROOT/meta",
   "/ROOT/meta?content=zimfile",
   "/ROOT/meta?content=zimfile&name=non-existent-item",