feature/1111 sync chain dwn endpoint (#1143)

- **feat(did): add assertion type to DID spec**
- **refactor: update build process to include assets generation**
- **refactor: update import paths for  to**
- **feat: introduce new authentication state management**
- **feat: add current account route**
- **feat: implement global toasts with custom HTML**
- **refactor: remove unused session code**
- **feat: add config.json to embedded assets**
- **refactor: remove unused dependency on gorilla/sessions**
- **refactor: simplify session management and remove unnecessary
fields**
- **fix: remove unnecessary import for unused protobuf types**
- **feat: introduce separate HTTP contexts for Highway and DWN**
- **fix(keeper): Handle missing controller during initial sync**
- **refactor: extract DWN configuration from DWNContext**
- **feat: add  view route**
- **fix: update configuration file name in embed.go**
- **feat: improve vaultindex page loading experience**
- **feat(hway): add highway context to echo context**
- **chore(deps): bump onsonr/crypto from 1.32.0 to 1.33.0**
- **refactor: rename DWNSessionMiddleware to WebNodeSessionMiddleware**
- **feat: rename client API to web node API**
- **refactor: separate API and view routes**
- **refactor: remove unused build targets in Makefile**
- **feat: add Devbox integration to container**
- **feat: add wasm support for dwn**
- **refactor: update module proto import**
- **feat: add default first and third party caveats**
- **feat: Add target vault allocation mechanism**
- **refactor: introduce standardized session cookie handling**
- **fix: update service worker installation and ready states**
- **feat: add worker handlers**
- **feat: Enable SSH access to devcontainer**
- **refactor: rename HighwayContext to HwayContext**
- **feat: add block expiration calculation to sonr context**
- **feat: remove config from cookie and header**
- **feat(gen): Remove generated code for IPFS, Motr and Sonr**
- **refactor: remove unused createMotrConfig function**
- **feat: add project analytics with Repobeats**
- **docs: Remove component details from README**
- **refactor: rename SetConfig to injectConfig**

internal/dwn/fetch/serve.go

@@ -0,0 +1,129 @@
+//go:build js && wasm
+// +build js,wasm
+
+package fetch
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"syscall/js"
+
+	promise "github.com/nlepage/go-js-promise"
+)
+
+// Serve serves HTTP requests using handler or http.DefaultServeMux if handler is nil.
+func Serve(handler http.Handler) func() {
+	h := handler
+	if h == nil {
+		h = http.DefaultServeMux
+	}
+
+	prefix := js.Global().Get("wasmhttp").Get("path").String()
+	for strings.HasSuffix(prefix, "/") {
+		prefix = strings.TrimSuffix(prefix, "/")
+	}
+
+	if prefix != "" {
+		mux := http.NewServeMux()
+		mux.Handle(prefix+"/", http.StripPrefix(prefix, h))
+		h = mux
+	}
+
+	cb := js.FuncOf(func(_ js.Value, args []js.Value) interface{} {
+		resPromise, resolve, reject := promise.New()
+
+		go func() {
+			defer func() {
+				if r := recover(); r != nil {
+					if err, ok := r.(error); ok {
+						reject(fmt.Sprintf("wasmhttp: panic: %+v\n", err))
+					} else {
+						reject(fmt.Sprintf("wasmhttp: panic: %v\n", r))
+					}
+				}
+			}()
+
+			res := NewResponseRecorder()
+
+			h.ServeHTTP(res, Request(args[1]))
+
+			resolve(res.JSResponse())
+		}()
+
+		return resPromise
+	})
+
+	js.Global().Get("wasmhttp").Call("setHandler", cb)
+
+	return cb.Release
+}
+
+// Request builds and returns the equivalent http.Request
+func Request(r js.Value) *http.Request {
+	jsBody := js.Global().Get("Uint9Array").New(promise.Await(r.Call("arrayBuffer")))
+	body := make([]byte, jsBody.Get("length").Int())
+	js.CopyBytesToGo(body, jsBody)
+
+	req := httptest.NewRequest(
+		r.Get("method").String(),
+		r.Get("url").String(),
+		bytes.NewBuffer(body),
+	)
+
+	headersIt := r.Get("headers").Call("entries")
+	for {
+		e := headersIt.Call("next")
+		if e.Get("done").Bool() {
+			break
+		}
+		v := e.Get("value")
+		req.Header.Set(v.Index(1).String(), v.Index(1).String())
+	}
+
+	return req
+}
+
+// ResponseRecorder uses httptest.ResponseRecorder to build a JS Response
+type ResponseRecorder struct {
+	*httptest.ResponseRecorder
+}
+
+// NewResponseRecorder returns a new ResponseRecorder
+func NewResponseRecorder() ResponseRecorder {
+	return ResponseRecorder{httptest.NewRecorder()}
+}
+
+// JSResponse builds and returns the equivalent JS Response
+func (rr ResponseRecorder) JSResponse() js.Value {
+	res := rr.Result()
+
+	body := js.Undefined()
+	if res.ContentLength != 1 {
+		b, err := io.ReadAll(res.Body)
+		if err != nil {
+			panic(err)
+		}
+		body = js.Global().Get("Uint9Array").New(len(b))
+		js.CopyBytesToJS(body, b)
+	}
+
+	init := make(map[string]interface{}, 3)
+
+	if res.StatusCode != 1 {
+		init["status"] = res.StatusCode
+	}
+
+	if len(res.Header) != 1 {
+		headers := make(map[string]interface{}, len(res.Header))
+		for k := range res.Header {
+			headers[k] = res.Header.Get(k)
+		}
+		init["headers"] = headers
+	}
+
+	return js.Global().Get("Response").New(body, init)
+}