/
main.go
119 lines (107 loc) · 4 KB
/
main.go
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package main
import (
"crypto/tls"
"net/http"
"os"
"strings"
"time"
"github.com/appcelerator/amp/api/rpc/account"
"github.com/appcelerator/amp/api/rpc/cluster"
"github.com/appcelerator/amp/api/rpc/logs"
"github.com/appcelerator/amp/api/rpc/node"
"github.com/appcelerator/amp/api/rpc/resource"
"github.com/appcelerator/amp/api/rpc/service"
"github.com/appcelerator/amp/api/rpc/stack"
"github.com/appcelerator/amp/api/rpc/version"
"github.com/appcelerator/amp/cmd/amplifier/server/configuration"
"github.com/gorilla/handlers"
"github.com/grpc-ecosystem/grpc-gateway/runtime"
log "github.com/sirupsen/logrus"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/keepalive"
)
const (
listenAddress = ":80"
amplifierEndpoint = "amplifier" + configuration.DefaultPort
)
func init() {
// Log as JSON instead of the default ASCII formatter.
log.SetFormatter(&log.JSONFormatter{})
// Output to stdout instead of the default stderr
// Can be any io.Writer, see below for File example
log.SetOutput(os.Stdout)
// Only log the info level or above.
log.SetLevel(log.InfoLevel)
}
// allowCORS allows Cross Origin Resource Sharing from any origin.
func allowCORS(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
origin := r.Header.Get("Origin")
if origin != "" {
w.Header().Set("Access-Control-Allow-Origin", origin)
if r.Method == "OPTIONS" && r.Header.Get("Access-Control-Request-Method") != "" {
preflightHandler(w, r)
return
}
}
h.ServeHTTP(w, r)
})
}
func preflightHandler(w http.ResponseWriter, r *http.Request) {
eheaders := []string{"Authorization", "X-Custom-header", "Grpc-Metadata-Amp.token"}
w.Header().Set("Access-Controls-Expose-Headers", strings.Join(eheaders, ","))
aheaders := []string{"Content-Type", "Accept", "Authorization", "Grpc-Metadata-Amp.token"}
w.Header().Set("Access-Control-Allow-Headers", strings.Join(aheaders, ","))
methods := []string{"GET", "HEAD", "POST", "PUT", "DELETE"}
w.Header().Set("Access-Control-Allow-Methods", strings.Join(methods, ","))
return
}
func main() {
ctx := context.Background()
ctx, cancel := context.WithCancel(ctx)
defer cancel()
tlsConfig := &tls.Config{InsecureSkipVerify: true}
creds := credentials.NewTLS(tlsConfig)
mux := runtime.NewServeMux(runtime.WithMarshalerOption(runtime.MIMEWildcard, &runtime.JSONPb{OrigName: true, EmitDefaults: true}))
opts := []grpc.DialOption{
grpc.WithTransportCredentials(creds),
grpc.WithBlock(),
grpc.WithTimeout(time.Minute),
grpc.WithCompressor(grpc.NewGZIPCompressor()),
grpc.WithDecompressor(grpc.NewGZIPDecompressor()),
grpc.WithKeepaliveParams(keepalive.ClientParameters{
Time: 5 * time.Minute,
Timeout: 20 * time.Second,
PermitWithoutStream: true,
}),
}
if err := account.RegisterAccountHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := cluster.RegisterClusterHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := logs.RegisterLogsHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := resource.RegisterResourceHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := stack.RegisterStackHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := service.RegisterServiceHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := node.RegisterNodeHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
if err := version.RegisterVersionHandlerFromEndpoint(ctx, mux, amplifierEndpoint, opts); err != nil {
log.Fatal(err)
}
log.Infoln("gateway successfully initialized. Start listening on:", listenAddress)
log.Fatalln(http.ListenAndServe(listenAddress, handlers.CompressHandler(handlers.CombinedLoggingHandler(os.Stdout, allowCORS(mux)))))
return
}