74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
/*
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Copyright 2020 The KubeSphere Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package user
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import (
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"context"
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"fmt"
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"net/http"
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"net/mail"
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"sigs.k8s.io/controller-runtime/pkg/client"
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"sigs.k8s.io/controller-runtime/pkg/webhook/admission"
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"kubesphere.io/api/iam/v1alpha2"
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)
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type EmailValidator struct {
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Client client.Client
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decoder *admission.Decoder
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}
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func (a *EmailValidator) Handle(ctx context.Context, req admission.Request) admission.Response {
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user := &v1alpha2.User{}
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err := a.decoder.Decode(req, user)
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if err != nil {
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return admission.Errored(http.StatusBadRequest, err)
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}
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allUsers := v1alpha2.UserList{}
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if err = a.Client.List(ctx, &allUsers, &client.ListOptions{}); err != nil {
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return admission.Errored(http.StatusInternalServerError, err)
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}
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if _, err := mail.ParseAddress(user.Spec.Email); user.Spec.Email != "" && err != nil {
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return admission.Errored(http.StatusBadRequest, fmt.Errorf("invalid email address:%s", user.Spec.Email))
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}
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alreadyExist := emailAlreadyExist(allUsers, user)
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if alreadyExist {
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return admission.Errored(http.StatusConflict, fmt.Errorf("user email: %s already exists", user.Spec.Email))
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}
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return admission.Allowed("")
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}
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func emailAlreadyExist(users v1alpha2.UserList, user *v1alpha2.User) bool {
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for _, exist := range users.Items {
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if exist.Spec.Email == user.Spec.Email && exist.Name != user.Name {
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return true
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}
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}
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return false
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}
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// InjectDecoder injects the decoder.
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func (a *EmailValidator) InjectDecoder(d *admission.Decoder) error {
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a.decoder = d
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return nil
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}
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