reimport the registry regsrc module

registry/regsrc/friendly_host.go

@@ -4,7 +4,7 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/hashicorp/terraform/svchost"
+	"golang.org/x/net/idna"
 )
 
 var (
@@ -95,26 +95,42 @@ func ParseFriendlyHost(source string) (host *FriendlyHost, rest string) {
 // name specifications. Not that IDN prefixes containing punycode are not valid
 // input which we expect to always be in user-input or normalised display form.
 func (h *FriendlyHost) Valid() bool {
-	return svchost.IsValid(h.Raw)
+	if h.Display() == InvalidHostString {
+		return false
+	}
+	if h.Normalized() == InvalidHostString {
+		return false
+	}
+	if containsPuny(h.Raw) {
+		return false
+	}
+	return true
 }
 
 // Display returns the host formatted for display to the user in CLI or web
 // output.
 func (h *FriendlyHost) Display() string {
-	hostname, err := svchost.ForComparison(h.Raw)
+	parts := strings.SplitN(h.Raw, ":", 2)
+	var err error
+	parts[0], err = idna.Display.ToUnicode(parts[0])
 	if err != nil {
 		return InvalidHostString
 	}
-	return hostname.ForDisplay()
+	return strings.Join(parts, ":")
 }
 
 // Normalized returns the host formatted for internal reference or comparison.
 func (h *FriendlyHost) Normalized() string {
-	hostname, err := svchost.ForComparison(h.Raw)
+	// For now IDNA does all the normalisation we need including case-folding
+	// pure ASCII to lower. But breaks if a custom port is included while we
+	// want to allow that and normalize comparison including it,
+	parts := strings.SplitN(h.Raw, ":", 2)
+	var err error
+	parts[0], err = idna.Lookup.ToASCII(parts[0])
 	if err != nil {
 		return InvalidHostString
 	}
-	return hostname.String()
+	return strings.Join(parts, ":")
 }
 
 // String returns the host formatted as the user originally typed it assuming it

registry/regsrc/friendly_host_test.go

@@ -95,36 +95,26 @@ func TestFriendlyHost(t *testing.T) {
 				if v := gotHost.String(); v != tt.wantHost {
 					t.Fatalf("String() = %v, want %v", v, tt.wantHost)
 				}
-				if v := gotHost.Valid(); v != tt.wantValid {
-					t.Fatalf("Valid() = %v, want %v", v, tt.wantValid)
-				}
-
-				// FIXME: should we allow punycode as input
-				if !tt.wantValid {
-					return
-				}
-
 				if v := gotHost.Display(); v != tt.wantDisplay {
 					t.Fatalf("Display() = %v, want %v", v, tt.wantDisplay)
 				}
 				if v := gotHost.Normalized(); v != tt.wantNorm {
 					t.Fatalf("Normalized() = %v, want %v", v, tt.wantNorm)
 				}
+				if v := gotHost.Valid(); v != tt.wantValid {
+					t.Fatalf("Valid() = %v, want %v", v, tt.wantValid)
+				}
 				if gotRest != strings.TrimLeft(sfx, "/") {
 					t.Fatalf("ParseFriendlyHost() rest = %v, want %v", gotRest, strings.TrimLeft(sfx, "/"))
 				}
 
 				// Also verify that host compares equal with all the variants.
 				if !gotHost.Equal(&FriendlyHost{Raw: tt.wantDisplay}) {
-					t.Fatalf("Equal() should be true for %s and %t", tt.wantHost, tt.wantValid)
+					t.Fatalf("Equal() should be true for %s and %s", tt.wantHost, tt.wantValid)
+				}
+				if !gotHost.Equal(&FriendlyHost{Raw: tt.wantNorm}) {
+					t.Fatalf("Equal() should be true for %s and %s", tt.wantHost, tt.wantNorm)
 				}
-
-				// FIXME: Do we need to accept normalized input?
-				//if !gotHost.Equal(&FriendlyHost{Raw: tt.wantNorm}) {
-				//    fmt.Println(gotHost.Normalized(), tt.wantNorm)
-				//    fmt.Println("     ", (&FriendlyHost{Raw: tt.wantNorm}).Normalized())
-				//    t.Fatalf("Equal() should be true for %s and %s", tt.wantHost, tt.wantNorm)
-				//}
 
 			})
 		}

registry/regsrc/module.go

@@ -33,12 +33,13 @@ var (
 		fmt.Sprintf("^(%s)\\/(%s)\\/(%s)(?:\\/\\/(.*))?$",
 			nameSubRe, nameSubRe, providerSubRe))
 
-	// disallowed is a set of hostnames that have special usage in modules and
-	// can't be registry hosts
-	disallowed = map[string]bool{
-		"github.com":    true,
-		"bitbucket.org": true,
-	}
+	// NameRe is a regular expression defining the format allowed for namespace
+	// or name fields in module registry implementations.
+	NameRe = regexp.MustCompile("^" + nameSubRe + "$")
+
+	// ProviderRe is a regular expression defining the format allowed for
+	// provider fields in module registry implementations.
+	ProviderRe = regexp.MustCompile("^" + providerSubRe + "$")
 )
 
 // Module describes a Terraform Registry Module source.
@@ -84,11 +85,9 @@ func NewModule(host, namespace, name, provider, submodule string) *Module {
 func ParseModuleSource(source string) (*Module, error) {
 	// See if there is a friendly host prefix.
 	host, rest := ParseFriendlyHost(source)
-	if host != nil {
-		if !host.Valid() || disallowed[host.Display()] {
+	if host != nil && !host.Valid() {
 		return nil, ErrInvalidModuleSource
 	}
-	}
 
 	matches := moduleSourceRe.FindStringSubmatch(rest)
 	if len(matches) < 4 {
@@ -132,12 +131,6 @@ func (m *Module) String() string {
 	return m.formatWithPrefix(hostPrefix, true)
 }
 
-// Module returns just the registry ID of the module, without a hostname or
-// suffix.
-func (m *Module) Module() string {
-	return fmt.Sprintf("%s/%s/%s", m.RawNamespace, m.RawName, m.RawProvider)
-}
-
 // Equal compares the module source against another instance taking
 // normalization into account.
 func (m *Module) Equal(other *Module) bool {

registry/regsrc/module_test.go

@@ -96,16 +96,6 @@ func TestModule(t *testing.T) {
 			source:  "foo.com/var/baz?otherthing",
 			wantErr: true,
 		},
-		{
-			name:    "disallow github",
-			source:  "github.com/HashiCorp/Consul/aws",
-			wantErr: true,
-		},
-		{
-			name:    "disallow bitbucket",
-			source:  "bitbucket.org/HashiCorp/Consul/aws",
-			wantErr: true,
-		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {