Make the limit of zim files per search configurable.

The default value is 0, which means no limit.

include/server.h

@@ -54,6 +54,7 @@ namespace kiwix
        void setAddress(const std::string& addr) { m_addr = addr; }
        void setPort(int port) { m_port = port; }
        void setNbThreads(int threads) { m_nbThreads = threads; }
+       void setMultiZimSearchLimit(unsigned int limit) { m_multizimSearchLimit = limit; }
        void setIpConnectionLimit(int limit) { m_ipConnectionLimit = limit; }
        void setVerbose(bool verbose) { m_verbose = verbose; }
        void setIndexTemplateString(const std::string& indexTemplateString) { m_indexTemplateString = indexTemplateString; }
@@ -72,6 +73,7 @@ namespace kiwix
        std::string m_indexTemplateString = "";
        int m_port = 80;
        int m_nbThreads = 1;
+       unsigned int m_multizimSearchLimit = 0;
        bool m_verbose = false;
        bool m_withTaskbar = true;
        bool m_withLibraryButton = true;

src/server.cpp

@@ -45,6 +45,7 @@ bool Server::start() {
     m_port,
     m_root,
     m_nbThreads,
+    m_multizimSearchLimit,
     m_verbose,
     m_withTaskbar,
     m_withLibraryButton,

src/server/internalServer.cpp

@@ -207,7 +207,7 @@ void checkBookNumber(const Library::BookIdSet& bookIds, size_t limit) {
   if (bookIds.empty()) {
     throw Error(nonParameterizedMessage("no-book-found"));
   }
-  if (bookIds.size() > limit) {
+  if (limit > 0 && bookIds.size() > limit) {
     throw Error(tooManyBooksMsg(bookIds.size(), limit));
   }
 }
@@ -269,7 +269,7 @@ Library::BookIdSet InternalServer::selectBooks(const RequestContext& request) co
 SearchInfo InternalServer::getSearchInfo(const RequestContext& request) const
 {
   auto bookIds = selectBooks(request);
-  checkBookNumber(bookIds, 5);
+  checkBookNumber(bookIds, m_multizimSearchLimit);
   auto pattern = request.get_optional_param<std::string>("pattern", "");
   GeoQuery geoQuery;
 
@@ -332,6 +332,7 @@ InternalServer::InternalServer(Library* library,
                                int port,
                                std::string root,
                                int nbThreads,
+                               unsigned int multizimSearchLimit,
                                bool verbose,
                                bool withTaskbar,
                                bool withLibraryButton,
@@ -342,6 +343,7 @@ InternalServer::InternalServer(Library* library,
   m_port(port),
   m_root(normalizeRootUrl(root)),
   m_nbThreads(nbThreads),
+  m_multizimSearchLimit(multizimSearchLimit),
   m_verbose(verbose),
   m_withTaskbar(withTaskbar),
   m_withLibraryButton(withLibraryButton),

src/server/internalServer.h

@@ -101,6 +101,7 @@ class InternalServer {
                    int port,
                    std::string root,
                    int nbThreads,
+                   unsigned int multizimSearchLimit,
                    bool verbose,
                    bool withTaskbar,
                    bool withLibraryButton,
@@ -156,6 +157,7 @@ class InternalServer {
     int m_port;
     std::string m_root;
     int m_nbThreads;
+    unsigned int m_multizimSearchLimit;
     std::atomic_bool m_verbose;
     bool m_withTaskbar;
     bool m_withLibraryButton;