Potential fix for pull request finding

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

Author: House-Men

base/hbase.c

@@ -4,6 +4,7 @@
 #include <mach-o/dyld.h> // for _NSGetExecutablePath
 #endif
 
+#include <ctype.h>  // for tolower
 #include "hatomic.h"
 
 #ifndef RAND_MAX
@@ -542,6 +543,7 @@ int hv_parse_url(hurl_t* stURL, const char* strURL) {
 }
 
 int hv_normalize_path(char *path) {
+    if (!path) return 0;
     if (*path != '/') return 0;
     int pos = 1;
 #ifdef OS_WIN
@@ -586,7 +588,7 @@ int hv_normalize_path(char *path) {
             default:
 #ifdef OS_WIN
                 // windows is not case sensitive
-                path[pos++] = (char)tolower(path[i]);
+                path[pos++] = (char)tolower((unsigned char)path[i]);
 #else
                 path[pos++] = path[i];
 #endif

http/server/HttpHandler.cpp

@@ -524,7 +524,9 @@ int HttpHandler::defaultRequestHandler() {
 int HttpHandler::defaultStaticHandler() {
     // file service
     std::string path = req->Path();
-    path.resize(hv_normalize_path(const_cast<char*>(path.c_str())));
+    if (!path.empty()) {
+        path.resize(hv_normalize_path(&path[0]));
+    }
     if (path.empty()) {
         hloge("[%s:%d] Illegal relative path: %s", ip, port, req->path.c_str());
         return HTTP_STATUS_BAD_REQUEST;