diff --git a/.vscode/launch.json b/.vscode/launch.json
index 5dd21d40e..5ab4b119c 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -6,6 +6,18 @@
     "configurations": [
         {
             "name": "MaaHttp - Debug",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/bin/Debug/MaaHttp",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "lldb"
+        },
+        {
+            "name": "MaaHttp - Debug Win",
             "type": "cppvsdbg",
             "request": "launch",
             "program": "${workspaceFolder}/build/bin/Debug/MaaHttp.exe",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 667c48607..c0db8efc7 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -47,5 +47,6 @@
     ],
     "python.analysis.extraPaths": [
         "./source/binding/Python"
-    ]
+    ],
+    "editor.formatOnSave": true
 }
\ No newline at end of file
diff --git a/source/MaaHttp/LHG b/source/MaaHttp/LHG
index c38ee1fa9..6a18c8731 160000
--- a/source/MaaHttp/LHG
+++ b/source/MaaHttp/LHG
@@ -1 +1 @@
-Subproject commit c38ee1fa96fb5a466fc1a7e0425024392f07e020
+Subproject commit 6a18c8731d27265219a309cf34ce9b7b9a22564a
diff --git a/source/MaaHttp/base64.hpp b/source/MaaHttp/base64.hpp
deleted file mode 100644
index 161fcffb6..000000000
--- a/source/MaaHttp/base64.hpp
+++ /dev/null
@@ -1,109 +0,0 @@
-#ifndef BASE_64_HPP
-#define BASE_64_HPP
-
-#include <algorithm>
-#include <stdexcept>
-#include <string>
-#include <string_view>
-
-namespace base64
-{
-
-inline constexpr std::string_view base64_chars {
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-    "abcdefghijklmnopqrstuvwxyz"
-    "0123456789+/"
-};
-
-template <class OutputBuffer, class InputIterator>
-inline OutputBuffer encode_into(InputIterator begin, InputIterator end)
-{
-    static_assert(
-        std::is_same_v<std::decay_t<decltype(*begin)>, char>
-        || std::is_same_v<std::decay_t<decltype(*begin)>, unsigned char>
-        || std::is_same_v<std::decay_t<decltype(*begin)>, std::byte>);
-
-    size_t counter = 0;
-    uint32_t bit_stream = 0;
-    size_t offset = 0;
-    OutputBuffer encoded;
-    encoded.reserve(static_cast<size_t>(1.5 * static_cast<double>(std::distance(begin, end))));
-    while (begin != end) {
-        const auto num_val = static_cast<unsigned char>(*begin);
-        offset = 16 - counter % 3 * 8;
-        bit_stream += num_val << offset;
-        if (offset == 16) {
-            encoded.push_back(base64_chars[bit_stream >> 18 & 0x3f]);
-        }
-        if (offset == 8) {
-            encoded.push_back(base64_chars[bit_stream >> 12 & 0x3f]);
-        }
-        if (offset == 0 && counter != 3) {
-            encoded.push_back(base64_chars[bit_stream >> 6 & 0x3f]);
-            encoded.push_back(base64_chars[bit_stream & 0x3f]);
-            bit_stream = 0;
-        }
-        ++counter;
-        ++begin;
-    }
-    if (offset == 16) {
-        encoded.push_back(base64_chars[bit_stream >> 12 & 0x3f]);
-        encoded.push_back('=');
-        encoded.push_back('=');
-    }
-    if (offset == 8) {
-        encoded.push_back(base64_chars[bit_stream >> 6 & 0x3f]);
-        encoded.push_back('=');
-    }
-    return encoded;
-}
-
-inline std::string to_base64(std::string_view data)
-{
-    return encode_into<std::string>(std::begin(data), std::end(data));
-}
-
-template <class OutputBuffer>
-inline OutputBuffer decode_into(std::string_view data)
-{
-    using value_type = typename OutputBuffer::value_type;
-    static_assert(
-        std::is_same_v<value_type, char> || std::is_same_v<value_type, unsigned char>
-        || std::is_same_v<value_type, std::byte>);
-
-    size_t counter = 0;
-    uint32_t bit_stream = 0;
-    OutputBuffer decoded;
-    decoded.reserve(std::size(data));
-    for (unsigned char c : data) {
-        const auto num_val = base64_chars.find(c);
-        if (num_val != std::string::npos) {
-            const auto offset = 18 - counter % 4 * 6;
-            bit_stream += static_cast<uint32_t>(num_val) << offset;
-            if (offset == 12) {
-                decoded.push_back(static_cast<value_type>(bit_stream >> 16 & 0xff));
-            }
-            if (offset == 6) {
-                decoded.push_back(static_cast<value_type>(bit_stream >> 8 & 0xff));
-            }
-            if (offset == 0 && counter != 4) {
-                decoded.push_back(static_cast<value_type>(bit_stream & 0xff));
-                bit_stream = 0;
-            }
-        }
-        else if (c != '=') {
-            throw std::runtime_error { "Invalid base64 encoded data" };
-        }
-        counter++;
-    }
-    return decoded;
-}
-
-inline std::string from_base64(std::string_view data)
-{
-    return decode_into<std::string>(data);
-}
-
-} // namespace base64
-
-#endif // BASE_64_HPP
diff --git a/source/MaaHttp/main.cpp b/source/MaaHttp/main.cpp
index b0c2f0d2c..f61652c64 100644
--- a/source/MaaHttp/main.cpp
+++ b/source/MaaHttp/main.cpp
@@ -1,5 +1,6 @@
 #include <iostream>
 
+#include "utils/base64.hpp"
 #include "utils/phony.hpp"
 
 #include "spec/spec.hpp"
diff --git a/source/MaaHttp/spec/call.hpp b/source/MaaHttp/spec/call.hpp
index df8c18b42..9995baaa2 100644
--- a/source/MaaHttp/spec/call.hpp
+++ b/source/MaaHttp/spec/call.hpp
@@ -3,7 +3,7 @@
 #include "./type.hpp"
 #include "./utils.hpp"
 
-#include "../base64.hpp"
+#include "utils/base64.hpp"
 #include "utils/phony.hpp"
 
 #include "../info.hpp"
@@ -47,7 +47,7 @@ auto size =
 std::string_view data(
     reinterpret_cast<char*>(std::get<maa::func_type_MaaGetImageEncoded::ret::index>(arg)),
     size);
-value = base64::to_base64(data);
+value = lhg::to_base64(data);
 res[name] = value;
 __CALL_DECLARE_ARG_TO_JSON_END()
 
@@ -59,7 +59,11 @@ __CALL_DECLARE_INPUT(maa::func_type_MaaSetImageEncoded::_2_size, true)
 
 __CALL_DECLARE_JSON_TO_ARG_BEGIN(maa::func_type_MaaSetImageEncoded, _1_data)
 std::string& data = std::get<maa::func_type_MaaSetImageEncoded::_1_data::index>(state);
-data = base64::from_base64(value.as_string());
+auto opt = lhg::from_base64(value.as_string());
+if (!opt.has_value()) {
+    return false;
+}
+data = opt.value();
 std::get<maa::func_type_MaaSetImageEncoded::_1_data::index>(arg) =
     reinterpret_cast<unsigned char*>(const_cast<char*>(data.c_str()));
 std::get<maa::func_type_MaaSetImageEncoded::_2_size::index>(arg) = data.size();