feat(GODT-2181): Implement GetDomains

manager_domains.go

@@ -0,0 +1,15 @@
+package proton
+
+import "context"
+
+func (m *Manager) GetDomains(ctx context.Context) ([]string, error) {
+	var res struct {
+		Domains []string
+	}
+
+	if _, err := m.r(ctx).SetResult(&res).Get("/core/v4/domains/available"); err != nil {
+		return nil, err
+	}
+
+	return res.Domains, nil
+}

server/domains.go

@@ -0,0 +1,15 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+func (s *Server) handleGetDomainsAvailable() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.JSON(http.StatusOK, gin.H{
+			"Domains": []string{s.domain},
+		})
+	}
+}

server/router.go

@@ -30,6 +30,11 @@ func initRouter(s *Server) {
 			auth.POST("/refresh", s.handlePostAuthRefresh())
 		}
 
+		// Domains routes don't need authentication.
+		if domains := core.Group("/domains"); domains != nil {
+			domains.GET("/available", s.handleGetDomainsAvailable())
+		}
+
 		// Reporting a bug is also possible without authentication.
 		if reports := core.Group("/reports"); reports != nil {
 			reports.POST("/bug", s.handlePostReportBug())

server/server_test.go

@@ -1662,6 +1662,14 @@ func TestServer_AddressOrder(t *testing.T) {
 	})
 }
 
+func TestServer_Domains(t *testing.T) {
+	withServer(t, func(ctx context.Context, s *Server, m *proton.Manager) {
+		domains, err := m.GetDomains(ctx)
+		require.NoError(t, err)
+		require.Equal(t, []string{s.GetDomain()}, domains)
+	})
+}
+
 func withServer(t *testing.T, fn func(ctx context.Context, s *Server, m *proton.Manager), opts ...Option) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()