1 files changed, 370 insertions, 0 deletions
diff --git a/src/kube2msb/vendor/k8s.io/kubernetes/pkg/api/validation/schema.go b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/api/validation/schema.go
new file mode 100644
index 0000000..f6a4d07
--- /dev/null
+++ b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/api/validation/schema.go
@@ -0,0 +1,370 @@
+/*
+Copyright 2014 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package validation
+
+import (
+	"encoding/json"
+	"fmt"
+	"reflect"
+	"regexp"
+	"strings"
+
+	"github.com/emicklei/go-restful/swagger"
+	"github.com/golang/glog"
+	apiutil "k8s.io/kubernetes/pkg/api/util"
+	"k8s.io/kubernetes/pkg/runtime"
+	utilerrors "k8s.io/kubernetes/pkg/util/errors"
+	"k8s.io/kubernetes/pkg/util/yaml"
+)
+
+type InvalidTypeError struct {
+	ExpectedKind reflect.Kind
+	ObservedKind reflect.Kind
+	FieldName    string
+}
+
+func (i *InvalidTypeError) Error() string {
+	return fmt.Sprintf("expected type %s, for field %s, got %s", i.ExpectedKind.String(), i.FieldName, i.ObservedKind.String())
+}
+
+func NewInvalidTypeError(expected reflect.Kind, observed reflect.Kind, fieldName string) error {
+	return &InvalidTypeError{expected, observed, fieldName}
+}
+
+// TypeNotFoundError is returned when specified type
+// can not found in schema
+type TypeNotFoundError string
+
+func (tnfe TypeNotFoundError) Error() string {
+	return fmt.Sprintf("couldn't find type: %s", string(tnfe))
+}
+
+// Schema is an interface that knows how to validate an API object serialized to a byte array.
+type Schema interface {
+	ValidateBytes(data []byte) error
+}
+
+type NullSchema struct{}
+
+func (NullSchema) ValidateBytes(data []byte) error { return nil }
+
+type SwaggerSchema struct {
+	api      swagger.ApiDeclaration
+	delegate Schema // For delegating to other api groups
+}
+
+func NewSwaggerSchemaFromBytes(data []byte, factory Schema) (Schema, error) {
+	schema := &SwaggerSchema{}
+	err := json.Unmarshal(data, &schema.api)
+	if err != nil {
+		return nil, err
+	}
+	schema.delegate = factory
+	return schema, nil
+}
+
+// validateList unpacks a list and validate every item in the list.
+// It return nil if every item is ok.
+// Otherwise it return an error list contain errors of every item.
+func (s *SwaggerSchema) validateList(obj map[string]interface{}) []error {
+	items, exists := obj["items"]
+	if !exists {
+		return []error{fmt.Errorf("no items field in %#v", obj)}
+	}
+	return s.validateItems(items)
+}
+
+func (s *SwaggerSchema) validateItems(items interface{}) []error {
+	allErrs := []error{}
+	itemList, ok := items.([]interface{})
+	if !ok {
+		return append(allErrs, fmt.Errorf("items isn't a slice"))
+	}
+	for i, item := range itemList {
+		fields, ok := item.(map[string]interface{})
+		if !ok {
+			allErrs = append(allErrs, fmt.Errorf("items[%d] isn't a map[string]interface{}", i))
+			continue
+		}
+		groupVersion := fields["apiVersion"]
+		if groupVersion == nil {
+			allErrs = append(allErrs, fmt.Errorf("items[%d].apiVersion not set", i))
+			continue
+		}
+		itemVersion, ok := groupVersion.(string)
+		if !ok {
+			allErrs = append(allErrs, fmt.Errorf("items[%d].apiVersion isn't string type", i))
+			continue
+		}
+		if len(itemVersion) == 0 {
+			allErrs = append(allErrs, fmt.Errorf("items[%d].apiVersion is empty", i))
+		}
+		kind := fields["kind"]
+		if kind == nil {
+			allErrs = append(allErrs, fmt.Errorf("items[%d].kind not set", i))
+			continue
+		}
+		itemKind, ok := kind.(string)
+		if !ok {
+			allErrs = append(allErrs, fmt.Errorf("items[%d].kind isn't string type", i))
+			continue
+		}
+		if len(itemKind) == 0 {
+			allErrs = append(allErrs, fmt.Errorf("items[%d].kind is empty", i))
+		}
+		version := apiutil.GetVersion(itemVersion)
+		errs := s.ValidateObject(item, "", version+"."+itemKind)
+		if len(errs) >= 1 {
+			allErrs = append(allErrs, errs...)
+		}
+	}
+
+	return allErrs
+}
+
+func (s *SwaggerSchema) ValidateBytes(data []byte) error {
+	var obj interface{}
+	out, err := yaml.ToJSON(data)
+	if err != nil {
+		return err
+	}
+	data = out
+	if err := json.Unmarshal(data, &obj); err != nil {
+		return err
+	}
+	fields, ok := obj.(map[string]interface{})
+	if !ok {
+		return fmt.Errorf("error in unmarshaling data %s", string(data))
+	}
+	groupVersion := fields["apiVersion"]
+	if groupVersion == nil {
+		return fmt.Errorf("apiVersion not set")
+	}
+	if _, ok := groupVersion.(string); !ok {
+		return fmt.Errorf("apiVersion isn't string type")
+	}
+	kind := fields["kind"]
+	if kind == nil {
+		return fmt.Errorf("kind not set")
+	}
+	if _, ok := kind.(string); !ok {
+		return fmt.Errorf("kind isn't string type")
+	}
+	if strings.HasSuffix(kind.(string), "List") {
+		return utilerrors.NewAggregate(s.validateList(fields))
+	}
+	version := apiutil.GetVersion(groupVersion.(string))
+	allErrs := s.ValidateObject(obj, "", version+"."+kind.(string))
+	if len(allErrs) == 1 {
+		return allErrs[0]
+	}
+	return utilerrors.NewAggregate(allErrs)
+}
+
+func (s *SwaggerSchema) ValidateObject(obj interface{}, fieldName, typeName string) []error {
+	allErrs := []error{}
+	models := s.api.Models
+	model, ok := models.At(typeName)
+
+	// Verify the api version matches.  This is required for nested types with differing api versions because
+	// s.api only has schema for 1 api version (the parent object type's version).
+	// e.g. an extensions/v1beta1 Template embedding a /v1 Service requires the schema for the extensions/v1beta1
+	// api to delegate to the schema for the /v1 api.
+	// Only do this for !ok objects so that cross ApiVersion vendored types take precedence.
+	if !ok && s.delegate != nil {
+		fields, mapOk := obj.(map[string]interface{})
+		if !mapOk {
+			return append(allErrs, fmt.Errorf("field %s: expected object of type map[string]interface{}, but the actual type is %T", fieldName, obj))
+		}
+		if delegated, err := s.delegateIfDifferentApiVersion(runtime.Unstructured{Object: fields}); delegated {
+			if err != nil {
+				allErrs = append(allErrs, err)
+			}
+			return allErrs
+		}
+	}
+
+	if !ok {
+		return append(allErrs, TypeNotFoundError(typeName))
+	}
+	properties := model.Properties
+	if len(properties.List) == 0 {
+		// The object does not have any sub-fields.
+		return nil
+	}
+	fields, ok := obj.(map[string]interface{})
+	if !ok {
+		return append(allErrs, fmt.Errorf("field %s: expected object of type map[string]interface{}, but the actual type is %T", fieldName, obj))
+	}
+	if len(fieldName) > 0 {
+		fieldName = fieldName + "."
+	}
+	// handle required fields
+	for _, requiredKey := range model.Required {
+		if _, ok := fields[requiredKey]; !ok {
+			allErrs = append(allErrs, fmt.Errorf("field %s: is required", requiredKey))
+		}
+	}
+	for key, value := range fields {
+		details, ok := properties.At(key)
+
+		// Special case for runtime.RawExtension and runtime.Objects because they always fail to validate
+		// This is because the actual values will be of some sub-type (e.g. Deployment) not the expected
+		// super-type (RawExtension)
+		if s.isGenericArray(details) {
+			errs := s.validateItems(value)
+			if len(errs) > 0 {
+				allErrs = append(allErrs, errs...)
+			}
+			continue
+		}
+		if !ok {
+			allErrs = append(allErrs, fmt.Errorf("found invalid field %s for %s", key, typeName))
+			continue
+		}
+		if details.Type == nil && details.Ref == nil {
+			allErrs = append(allErrs, fmt.Errorf("could not find the type of %s from object: %v", key, details))
+		}
+		var fieldType string
+		if details.Type != nil {
+			fieldType = *details.Type
+		} else {
+			fieldType = *details.Ref
+		}
+		if value == nil {
+			glog.V(2).Infof("Skipping nil field: %s", key)
+			continue
+		}
+		errs := s.validateField(value, fieldName+key, fieldType, &details)
+		if len(errs) > 0 {
+			allErrs = append(allErrs, errs...)
+		}
+	}
+	return allErrs
+}
+
+// delegateIfDifferentApiVersion delegates the validation of an object if its ApiGroup does not match the
+// current SwaggerSchema.
+// First return value is true if the validation was delegated (by a different ApiGroup SwaggerSchema)
+// Second return value is the result of the delegated validation if performed.
+func (s *SwaggerSchema) delegateIfDifferentApiVersion(obj runtime.Unstructured) (bool, error) {
+	// Never delegate objects in the same ApiVersion or we will get infinite recursion
+	if !s.isDifferentApiVersion(obj) {
+		return false, nil
+	}
+
+	// Convert the object back into bytes so that we can pass it to the ValidateBytes function
+	m, err := json.Marshal(obj.Object)
+	if err != nil {
+		return true, err
+	}
+
+	// Delegate validation of this object to the correct SwaggerSchema for its ApiGroup
+	return true, s.delegate.ValidateBytes(m)
+}
+
+// isDifferentApiVersion Returns true if obj lives in a different ApiVersion than the SwaggerSchema does.
+// The SwaggerSchema will not be able to process objects in different ApiVersions unless they are vendored.
+func (s *SwaggerSchema) isDifferentApiVersion(obj runtime.Unstructured) bool {
+	groupVersion := obj.GetAPIVersion()
+	return len(groupVersion) > 0 && s.api.ApiVersion != groupVersion
+}
+
+// isGenericArray Returns true if p is an array of generic Objects - either RawExtension or Object.
+func (s *SwaggerSchema) isGenericArray(p swagger.ModelProperty) bool {
+	return p.DataTypeFields.Type != nil &&
+		*p.DataTypeFields.Type == "array" &&
+		p.Items != nil &&
+		p.Items.Ref != nil &&
+		(*p.Items.Ref == "runtime.RawExtension" || *p.Items.Ref == "runtime.Object")
+}
+
+// This matches type name in the swagger spec, such as "v1.Binding".
+var versionRegexp = regexp.MustCompile(`^(v.+|unversioned)\..*`)
+
+func (s *SwaggerSchema) validateField(value interface{}, fieldName, fieldType string, fieldDetails *swagger.ModelProperty) []error {
+	allErrs := []error{}
+	if reflect.TypeOf(value) == nil {
+		return append(allErrs, fmt.Errorf("unexpected nil value for field %v", fieldName))
+	}
+	// TODO: caesarxuchao: because we have multiple group/versions and objects
+	// may reference objects in other group, the commented out way of checking
+	// if a filedType is a type defined by us is outdated. We use a hacky way
+	// for now.
+	// TODO: the type name in the swagger spec is something like "v1.Binding",
+	// and the "v1" is generated from the package name, not the groupVersion of
+	// the type. We need to fix go-restful to embed the group name in the type
+	// name, otherwise we couldn't handle identically named types in different
+	// groups correctly.
+	if versionRegexp.MatchString(fieldType) {
+		// if strings.HasPrefix(fieldType, apiVersion) {
+		return s.ValidateObject(value, fieldName, fieldType)
+	}
+	switch fieldType {
+	case "string":
+		// Be loose about what we accept for 'string' since we use IntOrString in a couple of places
+		_, isString := value.(string)
+		_, isNumber := value.(float64)
+		_, isInteger := value.(int)
+		if !isString && !isNumber && !isInteger {
+			return append(allErrs, NewInvalidTypeError(reflect.String, reflect.TypeOf(value).Kind(), fieldName))
+		}
+	case "array":
+		arr, ok := value.([]interface{})
+		if !ok {
+			return append(allErrs, NewInvalidTypeError(reflect.Array, reflect.TypeOf(value).Kind(), fieldName))
+		}
+		var arrType string
+		if fieldDetails.Items.Ref == nil && fieldDetails.Items.Type == nil {
+			return append(allErrs, NewInvalidTypeError(reflect.Array, reflect.TypeOf(value).Kind(), fieldName))
+		}
+		if fieldDetails.Items.Ref != nil {
+			arrType = *fieldDetails.Items.Ref
+		} else {
+			arrType = *fieldDetails.Items.Type
+		}
+		for ix := range arr {
+			errs := s.validateField(arr[ix], fmt.Sprintf("%s[%d]", fieldName, ix), arrType, nil)
+			if len(errs) > 0 {
+				allErrs = append(allErrs, errs...)
+			}
+		}
+	case "uint64":
+	case "int64":
+	case "integer":
+		_, isNumber := value.(float64)
+		_, isInteger := value.(int)
+		if !isNumber && !isInteger {
+			return append(allErrs, NewInvalidTypeError(reflect.Int, reflect.TypeOf(value).Kind(), fieldName))
+		}
+	case "float64":
+		if _, ok := value.(float64); !ok {
+			return append(allErrs, NewInvalidTypeError(reflect.Float64, reflect.TypeOf(value).Kind(), fieldName))
+		}
+	case "boolean":
+		if _, ok := value.(bool); !ok {
+			return append(allErrs, NewInvalidTypeError(reflect.Bool, reflect.TypeOf(value).Kind(), fieldName))
+		}
+	// API servers before release 1.3 produce swagger spec with `type: "any"` as the fallback type, while newer servers produce spec with `type: "object"`.
+	// We have both here so that kubectl can work with both old and new api servers.
+	case "object":
+	case "any":
+	default:
+		return append(allErrs, fmt.Errorf("unexpected type: %v", fieldType))
+	}
+	return allErrs
+}