118 lines
2.7 KiB
Go
118 lines
2.7 KiB
Go
/*
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Copyright 2019 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 authentication
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import (
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"fmt"
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"github.com/mholt/caddy"
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"github.com/mholt/caddy/caddyhttp/httpserver"
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"kubesphere.io/kubesphere/pkg/apigateway/caddy-plugin/internal"
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"kubesphere.io/kubesphere/pkg/utils/sliceutil"
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"kubesphere.io/kubesphere/pkg/informers"
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)
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// Setup is called by Caddy to parse the config block
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func Setup(c *caddy.Controller) error {
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rule, err := parse(c)
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if err != nil {
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return err
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}
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stopChan := make(chan struct{}, 0)
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c.OnStartup(func() error {
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informerFactory := informers.SharedInformerFactory()
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informerFactory.Rbac().V1().Roles().Lister()
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informerFactory.Rbac().V1().RoleBindings().Lister()
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informerFactory.Rbac().V1().ClusterRoles().Lister()
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informerFactory.Rbac().V1().ClusterRoleBindings().Lister()
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informerFactory.Start(stopChan)
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informerFactory.WaitForCacheSync(stopChan)
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fmt.Println("Authentication middleware is initiated")
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return nil
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})
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c.OnShutdown(func() error {
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close(stopChan)
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return nil
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})
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httpserver.GetConfig(c).AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
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return &Authentication{Next: next, Rule: rule}
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})
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return nil
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}
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func parse(c *caddy.Controller) (*Rule, error) {
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rule := &Rule{}
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rule.ExclusionRules = make([]internal.ExclusionRule, 0)
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if c.Next() {
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args := c.RemainingArgs()
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switch len(args) {
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case 0:
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for c.NextBlock() {
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switch c.Val() {
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case "path":
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if !c.NextArg() {
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return rule, c.ArgErr()
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}
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rule.Path = c.Val()
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if c.NextArg() {
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return rule, c.ArgErr()
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}
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break
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case "except":
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if !c.NextArg() {
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return nil, c.ArgErr()
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}
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method := c.Val()
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if !sliceutil.HasString(internal.HttpMethods, method) {
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return nil, c.ArgErr()
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}
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for c.NextArg() {
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path := c.Val()
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rule.ExclusionRules = append(rule.ExclusionRules, internal.ExclusionRule{Method: method, Path: path})
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}
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break
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}
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}
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case 1:
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rule.Path = args[0]
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if c.NextBlock() {
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return rule, c.ArgErr()
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}
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default:
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return rule, c.ArgErr()
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}
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}
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if c.Next() {
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return rule, c.ArgErr()
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}
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return rule, nil
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}
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