feat(webconnectivity): long-term-evolution prototype (#882)

See https://github.com/ooni/probe/issues/2237

internal/registry/factory.go

@@ -215,7 +215,8 @@ func CanonicalizeExperimentName(name string) string {
 
 // NewFactory creates a new Factory instance.
 func NewFactory(name string) (*Factory, error) {
-	factory := allexperiments[CanonicalizeExperimentName(name)]
+	name = CanonicalizeExperimentName(name)
+	factory := allexperiments[name]
 	if factory == nil {
 		return nil, fmt.Errorf("no such experiment: %s", name)
 	}

internal/registry/webconnectivityv05.go

@@ -0,0 +1,27 @@
+package registry
+
+//
+// Registers the `web_connectivity@v0.5' experiment.
+//
+// See https://github.com/ooni/probe/issues/2237
+//
+
+import (
+	"github.com/ooni/probe-cli/v3/internal/experiment/webconnectivity"
+	"github.com/ooni/probe-cli/v3/internal/model"
+)
+
+func init() {
+	// Note: the name inserted into the table is the canonicalized experiment
+	// name though we advertise using `web_connectivity@v0.5`.
+	allexperiments["web_connectivity@v_0_5"] = &Factory{
+		build: func(config any) model.ExperimentMeasurer {
+			return webconnectivity.NewExperimentMeasurer(
+				config.(*webconnectivity.Config),
+			)
+		},
+		config:        &webconnectivity.Config{},
+		interruptible: false,
+		inputPolicy:   model.InputOrQueryBackend,
+	}
+}