update 2024-06-28

src/settings/dns/dns.hpp

@@ -6,5 +6,6 @@
 void get_dns(const httplib::Request &request, httplib::Response &response);
 void set_dns(const httplib::Request &request, httplib::Response &response);
 void get_dns_servers(const httplib::Request &request, httplib::Response &response);
+void set_dns_servers(const httplib::Request &request, httplib::Response &response);
 
 #endif // DNS_HPP

src/settings/dns/dns_servers.cpp

@@ -46,3 +46,42 @@ void get_dns_servers(const httplib::Request &request, httplib::Response &respons
         response.set_content(responsedata.str(), JSON_TYPE);
     }
 }
+
+void set_dns_servers(const httplib::Request &request, httplib::Response &response) {
+    std::cout << GREEN << request.path << RESET << "  " << request.method << std::endl;
+    response.set_header("Access-Control-Allow-Origin", "*");
+    if (request.body.empty()) {
+        response.set_content(ACCESS_REQUIRED_STRING, JSON_TYPE);
+        return;
+    }
+
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+    if (json_body["token"] == nullptr) {
+        response.set_content(ACCESS_REQUIRED_STRING, JSON_TYPE);
+        return;
+    }
+
+    httplib::Client cli(AUTH_SERVICE);
+
+    std::stringstream body;
+    body <<  R"({"token":)" << json_body["token"] << R"(})";
+
+    httplib::Result res = cli.Post("/api/access", body.str().c_str(), JSON_TYPE);
+    if (res->status == httplib::OK_200) {
+        nlohmann::json resjson = nlohmann::json::parse(res->body);
+        if (resjson["access"] == "reject") {
+            response.set_content(resjson.dump().c_str(), JSON_TYPE);
+            return;
+        }
+        std::ofstream dnsserversfile("/etc/dnsmasq.conf.d/resolv.conf");
+        nlohmann::json servers = json_body["servers"];
+        for (nlohmann::json_abi_v3_11_3::json server : servers) {
+            std::string srv = server;
+            dnsserversfile << "nameserver " << srv << "\n";
+        }
+        dnsserversfile.close();
+        system("/etc/init.d/dnsmasq restart");
+        std::string responsedata = R"({"success":"true"})";
+        response.set_content(responsedata, JSON_TYPE);
+    }
+}