Merge pull request #88 from aki-0421/incoming-properties

Support Incoming Properties

_examples/cron/main.go

@@ -2,20 +2,19 @@ package main
 
 import (
 	"context"
-	"errors"
 	"fmt"
 
-	"github.com/syumai/workers/cloudflare"
 	"github.com/syumai/workers/cloudflare/cron"
 )
 
-func task(ctx context.Context, event *cron.Event) error {
+func task(ctx context.Context) error {
-	fmt.Println(cloudflare.Getenv(ctx, "HELLO"))
+	e, err := cron.NewEvent(ctx)
-
+	if err != nil {
-	if event.ScheduledTime.Minute()%2 == 0 {
+		return err
-		return errors.New("even numbers cause errors")
 	}
 
+	fmt.Println(e.ScheduledTime.Unix())
+
 	return nil
 }
 

_examples/cron/wrangler.toml

@@ -3,9 +3,6 @@ main = "./build/worker.mjs"
 compatibility_date = "2023-02-24"
 workers_dev = false
 
-[vars]
-HELLO = "hello, world!"
-
 [triggers]
 crons = ["* * * * *"]
 

_examples/incoming/.gitignore

@@ -0,0 +1,3 @@
+build
+node_modules
+.wrangler

_examples/incoming/Makefile

@@ -0,0 +1,12 @@
+.PHONY: dev
+dev:
+	wrangler dev
+
+.PHONY: build
+build:
+	go run ../../cmd/workers-assets-gen
+	tinygo build -o ./build/app.wasm -target wasm -no-debug ./...
+
+.PHONY: deploy
+deploy:
+	wrangler deploy

_examples/incoming/go.mod

@@ -0,0 +1,7 @@
+module github.com/syumai/workers/_examples/incoming
+
+go 1.21.3
+
+require github.com/syumai/workers v0.0.0
+
+replace github.com/syumai/workers => ../../

_examples/incoming/go.sum

@@ -0,0 +1,2 @@
+github.com/syumai/workers v0.1.0 h1:z5QfQR2X+PCKzom7RodpI5J4D5YF7NT7Qwzb9AM9dgY=
+github.com/syumai/workers v0.1.0/go.mod h1:alXIDhTyeTwSzh0ZgQ3cb9HQPyyYfIejupE4Z3efr14=

_examples/incoming/main.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/syumai/workers"
+	"github.com/syumai/workers/cloudflare/fetch"
+)
+
+func main() {
+	handler := http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		p, err := fetch.NewIncomingProperties(req.Context())
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+
+		encoder := json.NewEncoder(w)
+		w.Header().Set("Content-Type", "application/json")
+		if err := encoder.Encode(p); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	})
+	workers.Serve(handler)
+}

_examples/incoming/wrangler.toml

@@ -0,0 +1,9 @@
+name = "incoming"
+main = "./build/worker.mjs"
+compatibility_date = "2022-05-13"
+compatibility_flags = [
+    "streams_enable_constructors"
+]
+
+[build]
+command = "make build"

cloudflare/cron/event.go

@@ -0,0 +1,28 @@
+package cron
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/syumai/workers/internal/runtimecontext"
+)
+
+// Event represents information about the Cron that invoked this worker.
+type Event struct {
+	Cron          string
+	ScheduledTime time.Time
+}
+
+func NewEvent(ctx context.Context) (*Event, error) {
+	obj := runtimecontext.MustExtractTriggerObj(ctx)
+	if obj.IsUndefined() {
+		return nil, errors.New("event is null")
+	}
+
+	scheduledTimeVal := obj.Get("scheduledTime").Float()
+	return &Event{
+		Cron:          obj.Get("cron").String(),
+		ScheduledTime: time.Unix(int64(scheduledTimeVal)/1000, 0).UTC(),
+	}, nil
+}

cloudflare/cron/scheduler.go

@@ -2,53 +2,20 @@ package cron
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"syscall/js"
-	"time"
 
 	"github.com/syumai/workers/internal/jsutil"
 	"github.com/syumai/workers/internal/runtimecontext"
 )
 
-// Event represents information about the Cron that invoked this worker.
+type Task func(ctx context.Context) error
-type Event struct {
-	Cron          string
-	ScheduledTime time.Time
-}
-
-// toEvent converts JS Object to Go Event struct
-func toEvent(obj js.Value) (*Event, error) {
-	if obj.IsUndefined() {
-		return nil, errors.New("event is null")
-	}
-	cronVal := obj.Get("cron").String()
-	scheduledTimeVal := obj.Get("scheduledTime").Float()
-	return &Event{
-		Cron:          cronVal,
-		ScheduledTime: time.Unix(int64(scheduledTimeVal)/1000, 0).UTC(),
-	}, nil
-}
-
-type Task func(ctx context.Context, event *Event) error
 
 var scheduledTask Task
 
-// ScheduleTask sets the Task to be executed
-func ScheduleTask(task Task) {
-	scheduledTask = task
-	js.Global().Call("ready")
-	select {}
-}
-
 func runScheduler(eventObj js.Value, runtimeCtxObj js.Value) error {
-	ctx := runtimecontext.New(context.Background(), runtimeCtxObj)
+	ctx := runtimecontext.New(context.Background(), eventObj, runtimeCtxObj)
-	event, err := toEvent(eventObj)
+	if err := scheduledTask(ctx); err != nil {
-	if err != nil {
-		return err
-	}
-	err = scheduledTask(ctx, event)
-	if err != nil {
 		return err
 	}
 	return nil
@@ -56,18 +23,17 @@ func runScheduler(eventObj js.Value, runtimeCtxObj js.Value) error {
 
 func init() {
 	runSchedulerCallback := js.FuncOf(func(_ js.Value, args []js.Value) any {
-		if len(args) != 2 {
+		if len(args) != 1 {
 			panic(fmt.Errorf("invalid number of arguments given to runScheduler: %d", len(args)))
 		}
-		event := args[0]
+		eventObj := args[0]
-		runtimeCtx := args[1]
+		runtimeCtxObj := jsutil.RuntimeContext
-
 		var cb js.Func
 		cb = js.FuncOf(func(_ js.Value, pArgs []js.Value) any {
 			defer cb.Release()
 			resolve := pArgs[0]
 			go func() {
-				err := runScheduler(event, runtimeCtx)
+				err := runScheduler(eventObj, runtimeCtxObj)
 				if err != nil {
 					panic(err)
 				}
@@ -80,3 +46,13 @@ func init() {
 	})
 	jsutil.Binding.Set("runScheduler", runSchedulerCallback)
 }
+
+//go:wasmimport workers ready
+func ready()
+
+// ScheduleTask sets the Task to be executed
+func ScheduleTask(task Task) {
+	scheduledTask = task
+	ready()
+	select {}
+}

cloudflare/fetch/bind.go

@@ -15,7 +15,8 @@ func fetch(namespace js.Value, req *http.Request, init *RequestInit) (*http.Resp
 	if namespace.IsUndefined() {
 		return nil, errors.New("fetch function not found")
 	}
-	promise := namespace.Call("fetch",
+	fetchObj := namespace.Get("fetch")
+	promise := fetchObj.Invoke(
 		// The Request object to fetch.
 		// Docs: https://developers.cloudflare.com/workers/runtime-apis/request
 		jshttp.ToJSRequest(req),
@@ -23,9 +24,11 @@ func fetch(namespace js.Value, req *http.Request, init *RequestInit) (*http.Resp
 		// Docs: https://developers.cloudflare.com/workers/runtime-apis/request#requestinit
 		init.ToJS(),
 	)
+
 	jsRes, err := jsutil.AwaitPromise(promise)
 	if err != nil {
 		return nil, err
 	}
+
 	return jshttp.ToResponse(jsRes)
 }

cloudflare/fetch/property.go

@@ -1,9 +1,12 @@
 package fetch
 
 import (
+	"context"
+	"errors"
 	"syscall/js"
 
 	"github.com/syumai/workers/internal/jsutil"
+	"github.com/syumai/workers/internal/runtimecontext"
 )
 
 // RedirectMode represents the redirect mode of a fetch() request.
@@ -45,3 +48,158 @@ func (init *RequestInit) ToJS() js.Value {
 type RequestInitCF struct {
 	/* TODO: implement */
 }
+
+type IncomingBotManagementJsDetection struct {
+	Passed bool
+}
+
+func NewIncomingBotManagementJsDetection(cf js.Value) *IncomingBotManagementJsDetection {
+	if cf.IsUndefined() {
+		return nil
+	}
+	return &IncomingBotManagementJsDetection{
+		Passed: cf.Get("passed").Bool(),
+	}
+}
+
+type IncomingBotManagement struct {
+	CorporateProxy bool
+	VerifiedBot    bool
+	JsDetection    *IncomingBotManagementJsDetection
+	StaticResource bool
+	Score          int
+}
+
+func NewIncomingBotManagement(cf js.Value) *IncomingBotManagement {
+	if cf.IsUndefined() {
+		return nil
+	}
+	return &IncomingBotManagement{
+		CorporateProxy: cf.Get("corporateProxy").Bool(),
+		VerifiedBot:    cf.Get("verifiedBot").Bool(),
+		JsDetection:    NewIncomingBotManagementJsDetection(cf.Get("jsDetection")),
+		StaticResource: cf.Get("staticResource").Bool(),
+		Score:          cf.Get("score").Int(),
+	}
+}
+
+type IncomingTLSClientAuth struct {
+	CertIssuerDNLegacy    string
+	CertIssuerSKI         string
+	CertSubjectDNRFC2253  string
+	CertSubjectDNLegacy   string
+	CertFingerprintSHA256 string
+	CertNotBefore         string
+	CertSKI               string
+	CertSerial            string
+	CertIssuerDN          string
+	CertVerified          string
+	CertNotAfter          string
+	CertSubjectDN         string
+	CertPresented         string
+	CertRevoked           string
+	CertIssuerSerial      string
+	CertIssuerDNRFC2253   string
+	CertFingerprintSHA1   string
+}
+
+func NewIncomingTLSClientAuth(cf js.Value) *IncomingTLSClientAuth {
+	if cf.IsUndefined() {
+		return nil
+	}
+	return &IncomingTLSClientAuth{
+		CertIssuerDNLegacy:    jsutil.MaybeString(cf.Get("certIssuerDNLegacy")),
+		CertIssuerSKI:         jsutil.MaybeString(cf.Get("certIssuerSKI")),
+		CertSubjectDNRFC2253:  jsutil.MaybeString(cf.Get("certSubjectDNRFC2253")),
+		CertSubjectDNLegacy:   jsutil.MaybeString(cf.Get("certSubjectDNLegacy")),
+		CertFingerprintSHA256: jsutil.MaybeString(cf.Get("certFingerprintSHA256")),
+		CertNotBefore:         jsutil.MaybeString(cf.Get("certNotBefore")),
+		CertSKI:               jsutil.MaybeString(cf.Get("certSKI")),
+		CertSerial:            jsutil.MaybeString(cf.Get("certSerial")),
+		CertIssuerDN:          jsutil.MaybeString(cf.Get("certIssuerDN")),
+		CertVerified:          jsutil.MaybeString(cf.Get("certVerified")),
+		CertNotAfter:          jsutil.MaybeString(cf.Get("certNotAfter")),
+		CertSubjectDN:         jsutil.MaybeString(cf.Get("certSubjectDN")),
+		CertPresented:         jsutil.MaybeString(cf.Get("certPresented")),
+		CertRevoked:           jsutil.MaybeString(cf.Get("certRevoked")),
+		CertIssuerSerial:      jsutil.MaybeString(cf.Get("certIssuerSerial")),
+		CertIssuerDNRFC2253:   jsutil.MaybeString(cf.Get("certIssuerDNRFC2253")),
+		CertFingerprintSHA1:   jsutil.MaybeString(cf.Get("certFingerprintSHA1")),
+	}
+}
+
+type IncomingTLSExportedAuthenticator struct {
+	ClientFinished  string
+	ClientHandshake string
+	ServerHandshake string
+	ServerFinished  string
+}
+
+func NewIncomingTLSExportedAuthenticator(cf js.Value) *IncomingTLSExportedAuthenticator {
+	if cf.IsUndefined() {
+		return nil
+	}
+	return &IncomingTLSExportedAuthenticator{
+		ClientFinished:  jsutil.MaybeString(cf.Get("clientFinished")),
+		ClientHandshake: jsutil.MaybeString(cf.Get("clientHandshake")),
+		ServerHandshake: jsutil.MaybeString(cf.Get("serverHandshake")),
+		ServerFinished:  jsutil.MaybeString(cf.Get("serverFinished")),
+	}
+}
+
+type IncomingProperties struct {
+	Longitude                string
+	Latitude                 string
+	TLSCipher                string
+	Continent                string
+	Asn                      int
+	ClientAcceptEncoding     string
+	Country                  string
+	TLSClientAuth            *IncomingTLSClientAuth
+	TLSExportedAuthenticator *IncomingTLSExportedAuthenticator
+	TLSVersion               string
+	Colo                     string
+	Timezone                 string
+	City                     string
+	VerifiedBotCategory      string
+	// EdgeRequestKeepAliveStatus int
+	RequestPriority string
+	HttpProtocol    string
+	Region          string
+	RegionCode      string
+	AsOrganization  string
+	PostalCode      string
+	BotManagement   *IncomingBotManagement
+}
+
+func NewIncomingProperties(ctx context.Context) (*IncomingProperties, error) {
+	obj := runtimecontext.MustExtractTriggerObj(ctx)
+	cf := obj.Get("cf")
+	if cf.IsUndefined() {
+		return nil, errors.New("runtime is not cloudflare")
+	}
+
+	return &IncomingProperties{
+		Longitude:                jsutil.MaybeString(cf.Get("longitude")),
+		Latitude:                 jsutil.MaybeString(cf.Get("latitude")),
+		TLSCipher:                jsutil.MaybeString(cf.Get("tlsCipher")),
+		Continent:                jsutil.MaybeString(cf.Get("continent")),
+		Asn:                      cf.Get("asn").Int(),
+		ClientAcceptEncoding:     jsutil.MaybeString(cf.Get("clientAcceptEncoding")),
+		Country:                  jsutil.MaybeString(cf.Get("country")),
+		TLSClientAuth:            NewIncomingTLSClientAuth(cf.Get("tlsClientAuth")),
+		TLSExportedAuthenticator: NewIncomingTLSExportedAuthenticator(cf.Get("tlsExportedAuthenticator")),
+		TLSVersion:               cf.Get("tlsVersion").String(),
+		Colo:                     cf.Get("colo").String(),
+		Timezone:                 cf.Get("timezone").String(),
+		City:                     jsutil.MaybeString(cf.Get("city")),
+		VerifiedBotCategory:      jsutil.MaybeString(cf.Get("verifiedBotCategory")),
+		RequestPriority:          jsutil.MaybeString(cf.Get("requestPriority")),
+		HttpProtocol:             cf.Get("httpProtocol").String(),
+		Region:                   jsutil.MaybeString(cf.Get("region")),
+		RegionCode:               jsutil.MaybeString(cf.Get("regionCode")),
+		AsOrganization:           cf.Get("asOrganization").String(),
+		PostalCode:               jsutil.MaybeString(cf.Get("postalCode")),
+		BotManagement:            NewIncomingBotManagement(cf.Get("botManagement")),
+	}, nil
+}

cloudflare/internal/cfruntimecontext/cfruntimecontext.go

@@ -49,8 +49,8 @@ var ErrValueNotFound = errors.New("execution context value for specified key not
 // GetRuntimeContextValue gets value for specified key from RuntimeContext.
 // - if the value is undefined, return error.
 func GetRuntimeContextValue(ctx context.Context, key string) (js.Value, error) {
-	runtimeCtxValue := runtimecontext.MustExtract(ctx)
+	runtimeObj := runtimecontext.MustExtractRuntimeObj(ctx)
-	v := runtimeCtxValue.Get(key)
+	v := runtimeObj.Get(key)
 	if v.IsUndefined() {
 		return js.Value{}, ErrValueNotFound
 	}

handler.go

@@ -49,7 +49,7 @@ func handleRequest(reqObj js.Value, runtimeCtxObj js.Value) (js.Value, error) {
 	if err != nil {
 		panic(err)
 	}
-	ctx := runtimecontext.New(context.Background(), runtimeCtxObj)
+	ctx := runtimecontext.New(context.Background(), reqObj, runtimeCtxObj)
 	req = req.WithContext(ctx)
 	reader, writer := io.Pipe()
 	w := &jshttp.ResponseWriter{

internal/runtimecontext/context.go

@@ -2,24 +2,36 @@ package runtimecontext
 
 import (
 	"context"
-	"errors"
 	"syscall/js"
 )
 
-type runtimeCtxKey struct{}
+type (
+	contextKeyTriggerObj struct{}
+	contextKeyRuntimeObj struct{}
+)
 
-func New(ctx context.Context, runtimeCtxObj js.Value) context.Context {
+func New(ctx context.Context, triggerObj, runtimeObj js.Value) context.Context {
-	return context.WithValue(ctx, runtimeCtxKey{}, runtimeCtxObj)
+	ctx = context.WithValue(ctx, contextKeyTriggerObj{}, triggerObj)
+	ctx = context.WithValue(ctx, contextKeyRuntimeObj{}, runtimeObj)
+	return ctx
 }
 
-var ErrRuntimeContextNotFound = errors.New("runtime context was not found")
+// MustExtractTriggerObj extracts trigger object from context.
-
+// This function panics when trigger object was not found.
-// MustExtract extracts runtime context object from context.
+func MustExtractTriggerObj(ctx context.Context) js.Value {
-// This function panics when runtime context object was not found.
+	v, ok := ctx.Value(contextKeyTriggerObj{}).(js.Value)
-func MustExtract(ctx context.Context) js.Value {
-	v, ok := ctx.Value(runtimeCtxKey{}).(js.Value)
 	if !ok {
-		panic(ErrRuntimeContextNotFound)
+		panic("trigger object was not found")
+	}
+	return v
+}
+
+// MustExtractRuntimeObj extracts runtime object from context.
+// This function panics when runtime object was not found.
+func MustExtractRuntimeObj(ctx context.Context) js.Value {
+	v, ok := ctx.Value(contextKeyRuntimeObj{}).(js.Value)
+	if !ok {
+		panic("runtime object was not found")
 	}
 	return v
 }