nodejs: addon

.gitignore

@@ -79,3 +79,6 @@ website/package-lock.json
 website/.cache
 website/test/stubs-layout-cache/_includes/*.js
 apps/android/app/release
+packages/simplex-chat-node/build
+packages/simplex-chat-node/.vscode
+packages/simplex-chat-node/libs

packages/simplex-chat-node/binding.gyp

@@ -0,0 +1,13 @@
+{
+  "targets": [
+    {
+      "target_name": "addon",
+      "sources": [ "cpp/simplex.cc" ],
+      "libraries": [
+        "-L<(module_root_dir)/libs",
+        "-lHSsimplex-chat-6.2.0.5-inplace-ghc9.6.3",
+        "-L<(module_root_dir)/build/Release/"
+      ]
+    }
+  ]
+}

packages/simplex-chat-node/cpp/simplex.cc

@@ -0,0 +1,188 @@
+#include <sstream>
+#include <string>
+
+#include <node.h>
+#include "simplex.h"
+
+namespace simplex
+{
+
+  using v8::Array;
+  using v8::ArrayBuffer;
+  using v8::Context;
+  using v8::FunctionCallbackInfo;
+  using v8::Isolate;
+  using v8::Local;
+  using v8::Maybe;
+  using v8::Number;
+  using v8::Object;
+  using v8::String;
+  using v8::Value;
+
+  void haskell_init()
+  {
+    int argc = 5;
+    char *argv[] = {
+        "simplex",
+        "+RTS",  // requires `hs_init_with_rtsopts`
+        "-A64m", // chunk size for new allocations
+        "-H64m", // initial heap size
+        "-xn",   // non-moving GC
+        0};
+    char **pargv = argv;
+    hs_init_with_rtsopts(&argc, &pargv);
+  }
+
+  void ChatMigrateInit(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    std::string path(*(v8::String::Utf8Value(isolate, args[0])));
+    std::string key(*(v8::String::Utf8Value(isolate, args[1])));
+    std::string confirm(*(v8::String::Utf8Value(isolate, args[2])));
+
+    long *ctrl(0);
+
+    std::string res = chat_migrate_init(path.c_str(), key.c_str(), confirm.c_str(), &ctrl);
+    std::stringstream ss;
+    ss << ctrl
+       << "\n"
+       << res;
+    // printf("ChatCtrl after init %d", cChatCtrl);
+    //   v8::Local<v8::String> ctrl = v8::String::NewFromUtf8(isolate, cppChatCtrl.c_str(), v8::String::kNormalString);
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, ss.str().c_str())
+            .ToLocalChecked());
+  }
+
+  void ChatCloseStore(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    long *ctrl = (long *)((long)args[0].As<Number>()->Value());
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_close_store(ctrl))
+            .ToLocalChecked());
+  }
+
+  void ChatSendCmd(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    long *ctrl = (long *)((long)args[0].As<Number>()->Value());
+    std::string cmd(*(v8::String::Utf8Value(isolate, args[1])));
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_send_cmd(ctrl, cmd.c_str()))
+            .ToLocalChecked());
+  }
+
+  void ChatRecvMsgWait(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    long *ctrl = (long *)((long)args[0].As<Number>()->Value());
+    long wait = ((long)args[1].As<Number>()->Value());
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_recv_msg_wait(ctrl, wait))
+            .ToLocalChecked());
+  }
+
+  void ChatWriteFile(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    long *ctrl = (long *)((long)args[0].As<Number>()->Value());
+    std::string path(*(v8::String::Utf8Value(isolate, args[1])));
+
+    Local<v8::ArrayBuffer> arr = args[2].As<ArrayBuffer>();
+    char *buffer = (char *)arr->Data();
+    int len(arr->ByteLength());
+    // std::array address(*arr);
+
+    // v8::Array a = *buffer;
+    // std::string data(*((isolate, args[1])));
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_write_file(ctrl, path.c_str(), buffer, len))
+            .ToLocalChecked());
+  }
+
+  void ChatReadFile(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    long *ctrl = (long *)((long)args[0].As<Number>()->Value());
+    std::string path(*(v8::String::Utf8Value(isolate, args[1])));
+
+    Local<v8::ArrayBuffer> arr = args[2].As<ArrayBuffer>();
+    char *buffer = (char *)arr->Data();
+    int len(arr->ByteLength());
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_write_file(ctrl, path.c_str(), buffer, len))
+            .ToLocalChecked());
+  }
+
+  void ChatEncryptFile(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    long *ctrl = (long *)((long)args[0].As<Number>()->Value());
+    std::string fromPath(*(v8::String::Utf8Value(isolate, args[1])));
+    std::string toPath(*(v8::String::Utf8Value(isolate, args[2])));
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_encrypt_file(ctrl, fromPath.c_str(), toPath.c_str()))
+            .ToLocalChecked());
+  }
+
+  void ChatDecryptFile(const FunctionCallbackInfo<Value> &args)
+  {
+    Isolate *isolate = args.GetIsolate();
+    Local<Context> context = isolate->GetCurrentContext();
+
+    std::string fromPath(*(v8::String::Utf8Value(isolate, args[0])));
+    std::string key(*(v8::String::Utf8Value(isolate, args[1])));
+    std::string nonce(*(v8::String::Utf8Value(isolate, args[2])));
+    std::string toPath(*(v8::String::Utf8Value(isolate, args[3])));
+
+    args.GetReturnValue().Set(
+        String::NewFromUtf8(
+            isolate, chat_decrypt_file(fromPath.c_str(), key.c_str(), nonce.c_str(), toPath.c_str()))
+            .ToLocalChecked());
+  }
+
+  void Initialize(Local<Object> exports)
+  {
+    haskell_init();
+    NODE_SET_METHOD(exports, "chat_migrate_init", ChatMigrateInit);
+    NODE_SET_METHOD(exports, "chat_close_store", ChatCloseStore);
+    NODE_SET_METHOD(exports, "chat_send_cmd", ChatSendCmd);
+    NODE_SET_METHOD(exports, "chat_recv_msg_wait", ChatRecvMsgWait);
+    NODE_SET_METHOD(exports, "chat_write_file", ChatWriteFile);
+    NODE_SET_METHOD(exports, "chat_read_file", ChatReadFile);
+    NODE_SET_METHOD(exports, "chat_encrypt_file", ChatEncryptFile);
+    NODE_SET_METHOD(exports, "chat_decrypt_file", ChatDecryptFile);
+  }
+
+  NODE_MODULE(NODE_GYP_MODULE_NAME, Initialize)
+
+} // namespace simplex

packages/simplex-chat-node/cpp/simplex.h

@@ -0,0 +1,46 @@
+//
+//  simplex.h
+//  SimpleX
+//
+//  Created by Evgeny on 30/05/2022.
+//  Copyright © 2022 SimpleX Chat. All rights reserved.
+//
+
+#ifndef SimpleX_h
+#define SimpleX_h
+
+extern "C" void hs_init(int argc, char **argv[]);
+extern "C" void hs_init_with_rtsopts(int * argc, char **argv[]);
+
+typedef long* chat_ctrl;
+
+// the last parameter is used to return the pointer to chat controller
+extern "C" char *chat_migrate_init(const char *path, const char *key, const char *confirm, chat_ctrl *ctrl);
+extern "C" char *chat_close_store(chat_ctrl ctrl);
+extern "C" char *chat_reopen_store(chat_ctrl ctrl);
+extern "C" char *chat_send_cmd(chat_ctrl ctrl, const char *cmd);
+extern "C" char *chat_recv_msg_wait(chat_ctrl ctrl, const int wait);
+extern "C" char *chat_parse_markdown(const char *str);
+extern "C" char *chat_parse_server(const char *str);
+extern "C" char *chat_password_hash(const char *pwd, const char *salt);
+extern "C" char *chat_valid_name(const char *name);
+extern "C" int chat_json_length(const char *str);
+extern "C" char *chat_encrypt_media(chat_ctrl ctrl, const char *key, const char *frame, const int len);
+extern "C" char *chat_decrypt_media(const char *key, const char *frame, const int len);
+
+// chat_write_file returns null-terminated string with JSON of WriteFileResult
+extern "C" char *chat_write_file(chat_ctrl ctrl, const char *path, const char *data, const int len);
+
+// chat_read_file returns a buffer with:
+// result status (1 byte), then if
+//   status == 0 (success): buffer length (uint32, 4 bytes), buffer of specified length.
+//   status == 1 (error): null-terminated error message string.
+extern "C" char *chat_read_file(const char *path, const char *key, const char *nonce);
+
+// chat_encrypt_file returns null-terminated string with JSON of WriteFileResult
+extern "C" char *chat_encrypt_file(chat_ctrl ctrl, const char *fromPath, const char *toPath);
+
+// chat_decrypt_file returns null-terminated string with the error message
+extern "C" char *chat_decrypt_file(const char *fromPath, const char *key, const char *nonce, const char *toPath);
+
+#endif /* simplex_h */

packages/simplex-chat-node/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "simplexjs",
+  "version": "1.0.0",
+  "main": "src/index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/simplex-chat/simplexjs.git"
+  },
+  "author": "SimpleX team",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/simplex-chat/simplexjs/issues"
+  },
+  "homepage": "https://github.com/simplex-chat/simplexjs#readme",
+  "description": ""
+}

packages/simplex-chat-node/src/index.js

@@ -0,0 +1,22 @@
+const addon = require('../build/Release/addon');
+const fs = require('fs');
+
+const ctrlAndRes = addon.chat_migrate_init("db", "a", "yesUp")
+const ctrl = Number(ctrlAndRes.split("\n")[0])
+const res = ctrlAndRes.split("\n")[1]
+console.log("Migrate ctrl:", ctrl, "res:", res)
+console.log(addon.chat_send_cmd(ctrl, "/v"))
+// const wait = 15_000_000
+// console.log(ctrl, addon.chat_recv_msg_wait(ctrl, wait))
+
+const path = "/tmp/write_file.txt"
+const data = [0, 1, 2]
+console.log(addon.chat_write_file(ctrl, path, new ArrayBuffer(data)))
+
+
+fs.writeFileSync("/tmp/file_unencrypted.txt", "unencrypted")
+const encRes = JSON.parse(addon.chat_encrypt_file(ctrl, "/tmp/file_unencrypted.txt", "/tmp/file_encrypted.txt"))
+const key = encRes.cryptoArgs.fileKey
+const nonce = encRes.cryptoArgs.fileNonce
+console.log(encRes)
+console.log(addon.chat_decrypt_file("/tmp/file_encrypted.txt", key, nonce, "/tmp/file_decrypted.txt"))