diff --git a/CMakeLists.txt b/CMakeLists.txt
index 11c1d3d..f760331 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,8 @@ set(CMAKE_CXX_STANDARD 23)
 
 add_subdirectory(netlib)
 
-add_executable(web_serv main.cpp)
+add_executable(web_serv main.cpp
+)
 
 target_link_libraries(web_serv PRIVATE netlib)
 
diff --git a/main.cpp b/main.cpp
index b004e84..5f8382f 100644
--- a/main.cpp
+++ b/main.cpp
@@ -4,6 +4,7 @@
 #endif
 #include <print>
 #include <fstream>
+#include <map>
 
 int atoi_newline(const char *data)
 {
@@ -34,6 +35,97 @@ std::string get_filename(std::string_view data)
     return ret;
 }
 
+static std::vector<std::string> split_until_newline(const std::string &data, const char c)
+{
+    std::vector<std::string> ret;
+    size_t index = 0;
+    size_t previous_start = 0;
+
+    while (data[index] != '\n' && data[index] != '\0')
+    {
+        if (data[index] == c || data[index] == '\r')
+        {
+            ret.push_back(data.substr(previous_start, index - previous_start));
+            previous_start = index + 1;
+        }
+        index++;
+    }
+    ret.push_back(data.substr(previous_start, index - previous_start));
+    return ret;
+}
+
+static std::vector<std::string> split(const std::string &data, const std::string d)
+{
+    std::vector<std::string> ret;
+    size_t index = 0;
+    size_t index2 = 0;
+    size_t previous_start = 0;
+
+    while (index < data.size())
+    {
+        if (data[index] == d[index2])
+        {
+            index2++;
+            if (index2 >= d.size())
+            {
+                ret.push_back(data.substr(previous_start, (index - previous_start)));
+                previous_start = index + 1;
+                index2 = 0;
+            }
+        }
+        else
+            index2 = 0;
+        index++;
+    }
+    ret.push_back(data.substr(previous_start, index - previous_start));
+    return ret;
+}
+
+template <typename T>
+void print_container(T &container)
+{
+    for (auto x: container)
+    {
+        std::println("{}", x);
+    }
+}
+
+template <typename T>
+void print_map(T container)
+{
+    for (auto [key, value]: container)
+    {
+        value.erase(std::remove(value.begin(), value.end(), '\n'), value.end());
+        value.erase(std::remove(value.begin(), value.end(), '\r'), value.end());
+        std::println("key {} value {}", key, value);
+    }
+}
+
+std::map<std::string, std::string> parse_header(const std::string &x)
+{
+    std::map<std::string, std::string> ret;
+    if (x.contains(": "))
+    {
+        std::vector<std::string> s = split(x, ": ");
+        ret.insert({s[0], s[1]});
+    }
+    return ret;
+}
+
+std::map<std::string, std::string> parse_headers(const std::vector<std::string> &data)
+{
+    std::map<std::string, std::string> ret;
+    for (auto &x: data)
+    {
+        if (x.contains(": "))
+        {
+            std::vector<std::string> s = split(x, ": ");
+            ret.insert({s[0], s[1]});
+        }
+    }
+    return ret;
+}
+
 int main()
 {
     netlib::server_raw server(false, 0);
@@ -42,26 +134,18 @@ int main()
     while (true)
     {
         std::vector<int> readable = server.wait_readable();
-        //std::this_thread::sleep_for(std::chrono::milliseconds(50));
+        std::this_thread::sleep_for(std::chrono::milliseconds(50));
         for (auto user: readable)
         {
-            char *data = server.receive_data_ensured(user, 3000);
+            char * data = server.get_line(user);
             if (data)
             {
-                std::string_view dat(data);
-                if (dat.starts_with("GET") && dat.size() > 4)
+                std::string dat = std::string(data);
+                std::vector<std::string> head = split(dat, " ");
+                print_container(head);
+                if (head[0] == "GET")
                 {
-                    dat.remove_prefix(4);
-                    int ins_size = 0;
-                    for (auto c: dat)
-                    {
-                        if (c == ' ')
-                            break;
-                        ins_size++;
-                    }
-                    dat.remove_suffix(dat.size() - ins_size);
-                    std::println("{}", dat);
-                    if (dat == "/")
+                    if (head[1] == "/")
                     {
                         netlib::send_packet(std::make_tuple(std::string("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n")), user);
                         std::ifstream file("../test.html",std::ios::binary);
@@ -77,49 +161,26 @@ int main()
                         sendfile(filefd, user, 0, (long long*)&size, nullptr, 0);
                         #endif
                     }
-                    server.disconnect_user(user);
                 }
-                if (dat.starts_with("POST"))
+                else if (head[0] == "POST")
                 {
-                    size_t pos = dat.find("Content-Length");
-                    dat.remove_prefix(pos);
-                    dat.remove_prefix(strlen("Content-Length: "));
-                    int lenght = atoi_newline(dat.data());
-                    std::println("{} {}", dat, lenght);
-
-                    pos = dat.find("filename=");
-                    if (pos == dat.npos)
-
-                    dat.remove_prefix(pos);
-                    dat.remove_prefix(strlen("filename="));
-                    std::string_view file_data(data);
-                    std::string filename = get_filename(dat);
-                    std::println("Filename {}", filename);
-                    dat.remove_prefix(dat.find("\r\n\r\n"));
-                    dat.remove_prefix(dat.find("\r\n\r\n"));
-                    dat.remove_prefix(4);
-                    std::println("{}", dat);
-                    if (lenght > 1000)
+                    while (true)
                     {
-                        std::println("set a target");
-                        server.set_target(user , lenght - (dat.data() - data));
-                        server.wait_readable();
-                        auto data_res = server.receive_everything(user);
-                        char *buffer = data_res.first;
-                        data = (char *)realloc(data, lenght + 1000);
-                        if (!data)
-                            throw std::runtime_error("Memory allocation failed");
-                        memcpy(data, buffer, lenght + 1000);
-                        dat = std::string_view(data);
+                        char *line = server.get_line(user);
+                        if (line)
+                        {
+                            std::string str = std::string(line);
+                            auto head = parse_header(str);
+                            print_map(head);
+                        }
+                        else
+                            break;
+                        free(line);
                     }
-                    std::ofstream a(filename, std::ios::binary);
-                    a.write(dat.data(), lenght);
-                    netlib::send_packet(std::make_tuple(std::string("HTTP/1.1 200 OK")), user);
-                    server.disconnect_user(user);
                 }
+                server.disconnect_user(user);
                 free(data);
             }
-            
         }
     }
 }
diff --git a/netlib b/netlib
index 99838bb..a91be41 160000
--- a/netlib
+++ b/netlib
@@ -1 +1 @@
-Subproject commit 99838bb7ecf8cbc698d9aaa45707b1fec23710a1
+Subproject commit a91be412a9a5b05911e0029241ce0ff6fd5c2d6b