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src/CaptiveRequestHandler.cpp

@@ -0,0 +1,33 @@
+#include "CaptiveRequestHandler.h"
+
+CaptiveRequestHandler::CaptiveRequestHandler(const char *host) {
+    strlcpy(_local_name, host, sizeof(_local_name));
+    strcat(_local_name, ".local");
+}
+
+CaptiveRequestHandler::~CaptiveRequestHandler() {
+}
+
+bool CaptiveRequestHandler::isLocalIp(String address) {
+    IPAddress ip;
+    return !ip.fromString(address) || (ip != _local_ip);
+}
+
+bool CaptiveRequestHandler::isLocalName(String host_name) {
+    return host_name.equalsIgnoreCase(_local_name);
+}
+
+bool CaptiveRequestHandler::canHandle(AsyncWebServerRequest *request) {
+    _local_ip = request->client()->localIP();
+
+    return !isLocalIp(request->getHeader("HOST")->value()) && !isLocalName(request->getHeader("HOST")->value());
+}
+
+void CaptiveRequestHandler::CaptiveRequestHandler::handleRequest(AsyncWebServerRequest *request) {
+    char buf[64];
+    sprintf(buf, "http://%s%s", _local_name, request->url().c_str());
+       auto response = request->beginResponse(302, "text/html");
+    response->addHeader("Location", buf);
+    response->addHeader("Connection", "close");
+    request->send(response);
+};