Unmark values before showing in JSON

This prevents "sensitive" values from unintentionally
showing as nil when running terraform show -json

command/jsonstate/state.go

@@ -9,7 +9,6 @@ import (
 	ctyjson "github.com/zclconf/go-cty/cty/json"
 
 	"github.com/hashicorp/terraform/addrs"
-	"github.com/hashicorp/terraform/configs/configschema"
 	"github.com/hashicorp/terraform/states"
 	"github.com/hashicorp/terraform/states/statefile"
 	"github.com/hashicorp/terraform/terraform"
@@ -100,7 +99,10 @@ type resource struct {
 // resource, whose structure depends on the resource type schema.
 type attributeValues map[string]interface{}
 
-func marshalAttributeValues(value cty.Value, schema *configschema.Block) attributeValues {
+func marshalAttributeValues(value cty.Value) attributeValues {
+	// unmark our value to show all values
+	value, _ = value.UnmarkDeep()
+
 	if value == cty.NilVal || value.IsNull() {
 		return nil
 	}
@@ -295,7 +297,7 @@ func marshalResources(resources map[string]*states.Resource, module addrs.Module
 					return nil, err
 				}
 
-				current.AttributeValues = marshalAttributeValues(riObj.Value, schema)
+				current.AttributeValues = marshalAttributeValues(riObj.Value)
 
 				if len(riObj.Dependencies) > 0 {
 					dependencies := make([]string, len(riObj.Dependencies))
@@ -327,7 +329,7 @@ func marshalResources(resources map[string]*states.Resource, module addrs.Module
 					return nil, err
 				}
 
-				deposed.AttributeValues = marshalAttributeValues(riObj.Value, schema)
+				deposed.AttributeValues = marshalAttributeValues(riObj.Value)
 
 				if len(riObj.Dependencies) > 0 {
 					dependencies := make([]string, len(riObj.Dependencies))

command/jsonstate/state_test.go

@@ -75,60 +75,27 @@ func TestMarshalOutputs(t *testing.T) {
 
 func TestMarshalAttributeValues(t *testing.T) {
 	tests := []struct {
-		Attr   cty.Value
-		Schema *configschema.Block
-		Want   attributeValues
+		Attr cty.Value
+		Want attributeValues
 	}{
 		{
 			cty.NilVal,
-			&configschema.Block{
-				Attributes: map[string]*configschema.Attribute{
-					"foo": {
-						Type:     cty.String,
-						Optional: true,
-					},
-				},
-			},
 			nil,
 		},
 		{
 			cty.NullVal(cty.String),
-			&configschema.Block{
-				Attributes: map[string]*configschema.Attribute{
-					"foo": {
-						Type:     cty.String,
-						Optional: true,
-					},
-				},
-			},
 			nil,
 		},
 		{
 			cty.ObjectVal(map[string]cty.Value{
 				"foo": cty.StringVal("bar"),
 			}),
-			&configschema.Block{
-				Attributes: map[string]*configschema.Attribute{
-					"foo": {
-						Type:     cty.String,
-						Optional: true,
-					},
-				},
-			},
 			attributeValues{"foo": json.RawMessage(`"bar"`)},
 		},
 		{
 			cty.ObjectVal(map[string]cty.Value{
 				"foo": cty.NullVal(cty.String),
 			}),
-			&configschema.Block{
-				Attributes: map[string]*configschema.Attribute{
-					"foo": {
-						Type:     cty.String,
-						Optional: true,
-					},
-				},
-			},
 			attributeValues{"foo": json.RawMessage(`null`)},
 		},
 		{
@@ -141,18 +108,22 @@ func TestMarshalAttributeValues(t *testing.T) {
 					cty.StringVal("moon"),
 				}),
 			}),
-			&configschema.Block{
-				Attributes: map[string]*configschema.Attribute{
-					"bar": {
-						Type:     cty.Map(cty.String),
-						Required: true,
-					},
-					"baz": {
-						Type:     cty.List(cty.String),
-						Optional: true,
-					},
-				},
+			attributeValues{
+				"bar": json.RawMessage(`{"hello":"world"}`),
+				"baz": json.RawMessage(`["goodnight","moon"]`),
 			},
+		},
+		// Marked values
+		{
+			cty.ObjectVal(map[string]cty.Value{
+				"bar": cty.MapVal(map[string]cty.Value{
+					"hello": cty.StringVal("world"),
+				}),
+				"baz": cty.ListVal([]cty.Value{
+					cty.StringVal("goodnight"),
+					cty.StringVal("moon").Mark("sensitive"),
+				}),
+			}),
 			attributeValues{
 				"bar": json.RawMessage(`{"hello":"world"}`),
 				"baz": json.RawMessage(`["goodnight","moon"]`),
@@ -161,7 +132,7 @@ func TestMarshalAttributeValues(t *testing.T) {
 	}
 
 	for _, test := range tests {
-		got := marshalAttributeValues(test.Attr, test.Schema)
+		got := marshalAttributeValues(test.Attr)
 		eq := reflect.DeepEqual(got, test.Want)
 		if !eq {
 			t.Fatalf("wrong result:\nGot: %#v\nWant: %#v\n", got, test.Want)

command/testdata/show-json-state/sensitive-variables/output.json

@@ -0,0 +1,22 @@
+{
+    "format_version": "0.1",
+    "terraform_version": "0.14.0",
+    "values": {
+        "root_module": {
+            "resources": [
+                {
+                    "address": "test_instance.test",
+                    "mode": "managed",
+                    "type": "test_instance",
+                    "name": "test",
+                    "provider_name": "registry.terraform.io/hashicorp/test",
+                    "schema_version": 0,
+                    "values": {
+                        "id": "621124146446964903",
+                        "ami": "abc"
+                    }
+                }
+            ]
+        }
+    }
+}

command/testdata/show-json-state/sensitive-variables/terraform.tfstate

@@ -0,0 +1,33 @@
+{
+  "version": 4,
+  "terraform_version": "0.14.0",
+  "serial": 1,
+  "lineage": "d7a6880b-6875-288f-13a9-696a65c73036",
+  "outputs": {},
+  "resources": [
+    {
+      "mode": "managed",
+      "type": "test_instance",
+      "name": "test",
+      "provider": "provider[\"registry.terraform.io/hashicorp/test\"]",
+      "instances": [
+        {
+          "schema_version": 0,
+          "attributes": {
+            "id": "621124146446964903",
+            "ami": "abc"
+          },
+          "sensitive_attributes": [
+            [
+              {
+                "type": "get_attr",
+                "value": "ami"
+              }
+            ]
+          ],
+          "private": "bnVsbA=="
+        }
+      ]
+    }
+  ]
+}