snapshot of https://github.com/cortezaproject/corteza.git (2024.9.x, 2026-09-18; blobs > 131072B omitted)

server/pkg/envoy/yaml/decoder.go

@@ -0,0 +1,85 @@
+package yaml
+
+import (
+	"context"
+	"io"
+	"regexp"
+	"strings"
+
+	"github.com/cortezaproject/corteza/server/pkg/y7s"
+	. "github.com/cortezaproject/corteza/server/pkg/y7s"
+
+	"github.com/cortezaproject/corteza/server/pkg/envoy"
+	"github.com/cortezaproject/corteza/server/pkg/envoy/resource"
+	"gopkg.in/yaml.v3"
+)
+
+type (
+	// decoder is a wrapper struct for yaml related methods
+	decoder struct{}
+
+	EnvoyMarshler interface {
+		MarshalEnvoy() ([]resource.Interface, error)
+	}
+)
+
+var (
+	validReference = regexp.MustCompile(`^[A-Za-z1-9][0-9A-Za-z_\-.]*[A-Za-z0-9]$`)
+)
+
+func Decoder() *decoder {
+	return &decoder{}
+}
+
+// CanDecodeFile checks if the file can be handled by this decoder
+//
+// @todo Add support for this; current library is unable to detect this.
+func (y *decoder) CanDecodeFile(f io.Reader) bool {
+	// relying on can-decode-ext for now
+	return true
+}
+
+func (y *decoder) CanDecodeExt(name string) bool {
+	var (
+		pt  = strings.Split(name, ".")
+		ext = strings.TrimSpace(pt[len(pt)-1])
+	)
+	return ext == "yaml" || ext == "yml"
+}
+
+func (y *decoder) Decode(ctx context.Context, r io.Reader, dctx *envoy.DecoderOpts) ([]resource.Interface, error) {
+	var (
+		doc = &Document{}
+	)
+
+	if err := yaml.NewDecoder(r).Decode(doc); err != nil {
+		return nil, err
+	}
+
+	aaa, err := doc.Decode(ctx)
+
+	return aaa, err
+
+}
+
+// Checks validity of ref node and sets the value to given arg ptr
+func decodeRef(n *yaml.Node, refType string, ref *string) error {
+	if n == nil {
+		return nil
+	}
+
+	if !IsKind(n, yaml.ScalarNode) {
+		return y7s.NodeErr(n, "%s reference must be scalar", refType)
+	}
+
+	if !IsValidRef(n.Value) {
+		return y7s.NodeErr(n, "%s reference must be a valid ID or Handle", refType)
+	}
+
+	*ref = n.Value
+	return nil
+}
+
+func IsValidRef(s string) bool {
+	return len(s) >= 2 && validReference.MatchString(s)
+}