Initial commit

checker/interactive.go

@@ -0,0 +1,53 @@
+//go:build standalone
+
+package checker
+
+import (
+	"errors"
+	"net/http"
+	"strconv"
+	"strings"
+
+	sdk "git.happydns.org/checker-sdk-go/checker"
+)
+
+// RenderForm exposes the run + admin options documented in Definition()
+// so the standalone form stays in sync with the host-side documentation.
+func (p *kerberosProvider) RenderForm() []sdk.CheckerOptionField {
+	docs := p.Definition().Options
+	fields := make([]sdk.CheckerOptionField, 0, len(docs.RunOpts)+len(docs.AdminOpts))
+	fields = append(fields, docs.RunOpts...)
+	fields = append(fields, docs.AdminOpts...)
+	return fields
+}
+
+// ParseForm turns the submitted form into a CheckerOptions, using the
+// documented field types to coerce values.
+func (p *kerberosProvider) ParseForm(r *http.Request) (sdk.CheckerOptions, error) {
+	opts := sdk.CheckerOptions{}
+	for _, f := range p.RenderForm() {
+		raw := r.FormValue(f.Id)
+		if f.Type != "bool" {
+			raw = strings.TrimSpace(raw)
+		}
+		if raw == "" {
+			if f.Required {
+				return nil, errors.New(f.Id + " is required")
+			}
+			continue
+		}
+		switch f.Type {
+		case "bool":
+			opts[f.Id] = raw == "true" || raw == "1" || raw == "on"
+		case "number":
+			if v, err := strconv.ParseFloat(raw, 64); err == nil {
+				opts[f.Id] = v
+			} else {
+				opts[f.Id] = raw
+			}
+		default:
+			opts[f.Id] = raw
+		}
+	}
+	return opts, nil
+}