add an external API

Signed-off-by: Xe Iaso <me@xeiaso.net>

3 files changed, 85 insertions, 0 deletions

diff --git a/cmd/xesite/api.go b/cmd/xesite/api.go
new file mode 100644
index 0000000..35bb5ae
--- /dev/null
+++ b/cmd/xesite/api.go
@@ -0,0 +1,44 @@
+package main
+
+import (
+	"context"
+	"os"
+	"os/exec"
+	"runtime"
+
+	"github.com/twitchtv/twirp"
+	"google.golang.org/protobuf/types/known/emptypb"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	"xeiaso.net/v4/internal/lume"
+	"xeiaso.net/v4/pb"
+)
+
+type MetaServer struct {
+	fs *lume.FS
+}
+
+func (ms *MetaServer) Metadata(ctx context.Context, _ *emptypb.Empty) (*pb.BuildInfo, error) {
+	deno, err := exec.LookPath("deno")
+	if err != nil {
+		return nil, twirp.InternalErrorf("can't find deno in $PATH: %w", err)
+	}
+
+	commit, err := ms.fs.Commit()
+	if err != nil {
+		return nil, twirp.InternalErrorf("can't get commit hash: %w", err)
+	}
+
+	result := &pb.BuildInfo{
+		Commit:        commit,
+		GoVersion:     runtime.Version(),
+		DenoVersion:   deno,
+		XesiteVersion: os.Args[0],
+		BuildTime:     timestamppb.New(ms.fs.BuildTime()),
+	}
+
+	if *devel {
+		result.XesiteVersion = "devel"
+	}
+
+	return result, nil
+}
diff --git a/cmd/xesite/internalapi.go b/cmd/xesite/internalapi.go
index 7d1ebcb..99516fc 100644
--- a/cmd/xesite/internalapi.go
+++ b/cmd/xesite/internalapi.go
@@ -6,9 +6,17 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"os"
+	"os/exec"
 	"path/filepath"
+	"runtime"
 
+	"github.com/twitchtv/twirp"
+	"google.golang.org/protobuf/types/known/emptypb"
+	"google.golang.org/protobuf/types/known/timestamppb"
+	"xeiaso.net/v4/internal/adminpb"
 	"xeiaso.net/v4/internal/lume"
+	"xeiaso.net/v4/pb"
 )
 
 func internalAPI(fs *lume.FS) {
@@ -26,6 +34,8 @@ func internalAPI(fs *lume.FS) {
 		http.ServeFile(w, r, filepath.Join(*dataDir, "site.zip"))
 	})
 
+	mux.Handle(adminpb.AdminPathPrefix, adminpb.NewAdminServer(&AdminAPI{fs: fs}))
+
 	ln, err := net.Listen("tcp", ":80")
 	if err != nil {
 		log.Fatal(err)
@@ -33,3 +43,28 @@ func internalAPI(fs *lume.FS) {
 
 	http.Serve(ln, mux)
 }
+
+type AdminAPI struct {
+	fs *lume.FS
+}
+
+func (aa *AdminAPI) Rebuild(ctx context.Context, _ *emptypb.Empty) (*pb.BuildInfo, error) {
+	deno, err := exec.LookPath("deno")
+	if err != nil {
+		return nil, twirp.InternalErrorf("can't find deno in $PATH: %w", err)
+	}
+
+	result := &pb.BuildInfo{
+		GoVersion:     runtime.Version(),
+		DenoVersion:   deno,
+		XesiteVersion: os.Args[0],
+	}
+
+	if err := aa.fs.Update(ctx); err != nil {
+		return nil, twirp.InternalErrorWith(err)
+	}
+
+	result.BuildTime = timestamppb.Now()
+
+	return result, nil
+}
diff --git a/cmd/xesite/main.go b/cmd/xesite/main.go
index 4635a71..a70ddc7 100644
--- a/cmd/xesite/main.go
+++ b/cmd/xesite/main.go
@@ -13,8 +13,10 @@ import (
 	"github.com/donatj/hmacsig"
 	"github.com/facebookgo/flagenv"
 	_ "github.com/joho/godotenv/autoload"
+	"github.com/twitchtv/twirp"
 	"xeiaso.net/v4/internal"
 	"xeiaso.net/v4/internal/lume"
+	"xeiaso.net/v4/pb"
 )
 
 var (
@@ -77,6 +79,10 @@ func main() {
 
 	mux := http.NewServeMux()
 	mux.Handle("/", http.FileServer(http.FS(fs)))
+	mux.Handle("/api/defs/", http.StripPrefix("/api/defs/", http.FileServer(http.FS(pb.Proto))))
+
+	ms := pb.NewMetaServer(&MetaServer{fs}, twirp.WithServerPathPrefix("/api"))
+	mux.Handle(ms.PathPrefix(), ms)
 
 	mux.HandleFunc("/blog.atom", func(w http.ResponseWriter, r *http.Request) {
 		http.Redirect(w, r, "/blog.rss", http.StatusMovedPermanently)