working commit

app/handler/manifest.go

@@ -216,3 +216,26 @@ func (hand *Handler) GetTags(rctx *router.Context) {
 	}
 	rctx.SendJSON(code, res.TagDescr)
 }
+
+// GET /v2/_catalog?n=1000 200 404
+func (hand *Handler) ListManifests(rctx *router.Context) {
+	params := &operator.ListManifestsParams{}
+	// Rigth checking
+	operatorID, _ := rctx.GetString(userTag)
+	opEnable, err := hand.CheckRight(rctx.Ctx, operatorID, terms.RightReadImages, "_catalog")
+	if err != nil {
+		rctx.SetStatus(http.StatusInternalServerError)
+		return
+	}
+	if !opEnable {
+		rctx.SetStatus(http.StatusMethodNotAllowed)
+		return
+	}
+	// Execution of the operation
+	ctx := rctx.GetContext()
+	res, code, err := hand.oper.ListManifests(ctx, params)
+	if err != nil {
+		hand.logg.Errorf("ListManifests error: %v", err)
+	}
+	rctx.SendJSON(code, res)
+}

app/operator/manifest.go

@@ -16,6 +16,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"slices"
 	"strconv"
 
 	"mstore/pkg/auxoci"
@@ -470,3 +471,33 @@ func (oper *Operator) GetReferer(ctx context.Context, params *GetRefererParams)
 	res.Reference = manifests[0].Reference
 	return res, http.StatusOK, err
 }
+
+type ListManifestsParams struct {
+	N int64
+}
+type ListManifestsResult struct {
+	Catalog []string `json:"repositories"`
+}
+
+func (oper *Operator) ListManifests(ctx context.Context, params *ListManifestsParams) (*ListManifestsResult, int, error) {
+	var err error
+	res := &ListManifestsResult{
+		Catalog: make([]string, 0),
+	}
+	refMap := make(map[string]bool)
+	descrs, err := oper.mdb.ListAllManifests(ctx)
+	if err != nil {
+		return res, http.StatusInternalServerError, err
+	}
+	for _, descr := range descrs {
+		_, yet := refMap[descr.Reference]
+		if !yet {
+			refMap[descr.Reference] = true
+		}
+	}
+	for key, _ := range refMap {
+		res.Catalog = append(res.Catalog, key)
+	}
+	slices.Sort(res.Catalog)
+	return res, http.StatusOK, err
+}

app/router/context.go

@@ -124,7 +124,7 @@ func (rctx *Context) SetStatus(httpStatus int) {
 }
 
 func (rctx *Context) SendJSON(statusCode int, payload any) {
-
+	rctx.StatusCode = statusCode
 	buffer := bytes.NewBuffer(nil)
 	json.NewEncoder(buffer).Encode(payload)
 	rctx.Writer.Header().Set("Content-Type", "application/json")
@@ -135,6 +135,7 @@ func (rctx *Context) SendJSON(statusCode int, payload any) {
 }
 
 func (rctx *Context) SendText(statusCode int, payload string) {
+	rctx.StatusCode = statusCode
 	size := strconv.FormatInt(int64(len(payload)), 10)
 	rctx.Writer.Header().Set("Content-Type", "text/plain")
 	rctx.Writer.Header().Set("Content-Length", size)
@@ -143,6 +144,7 @@ func (rctx *Context) SendText(statusCode int, payload string) {
 }
 
 func (rctx *Context) SendBytes(statusCode int, ctype string, payload []byte) {
+	rctx.StatusCode = statusCode
 	size := strconv.FormatInt(int64(len(payload)), 10)
 	rctx.Writer.Header().Set("Content-Type", ctype)
 	rctx.Writer.Header().Set("Content-Length", size)

app/router/loggingmw.go

@@ -30,7 +30,8 @@ func newLoggingHandler(next Handler, print func(string, ...any)) *loggingHandler
 
 func (logging loggingHandler) ServeHTTP(rctx *Context) {
 	logging.next.ServeHTTP(rctx)
-	logging.printFunc("%s %s %s %s %d", rctx.Request.RemoteAddr,
+	cl := rctx.Writer.Header().Get("Content-Length")
+	logging.printFunc("%s %s %s %s %s %d", rctx.Request.RemoteAddr,
 		rctx.Request.Method, rctx.Request.URL.String(),
-		rctx.Request.Proto, rctx.StatusCode)
+		rctx.Request.Proto, cl, rctx.StatusCode)
 }

app/service/service.go

@@ -104,6 +104,7 @@ func (svc *Service) Build() error {
 
 	svc.rout.Get(`/v2/{name}/tags/list`, svc.hand.GetTags)
 	svc.rout.Get(`/v2/{name}/referrers/{digest}`, svc.hand.GetReferer)
+	svc.rout.Get(`/v2/_catalog`, svc.hand.ListManifests)
 
 	svc.rout.Post(`/v3/api/account/create`, svc.hand.CreateAccount)
 	svc.rout.Post(`/v3/api/account/get`, svc.hand.GetAccount)