mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-05-08 14:37:55 +08:00
83 lines
2.2 KiB
Go
83 lines
2.2 KiB
Go
// Copyright 2019 Yunion
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package proxy
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import (
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"context"
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"crypto/tls"
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"net/http"
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"net/http/httputil"
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"net/url"
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"yunion.io/x/log"
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"yunion.io/x/pkg/appctx"
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"yunion.io/x/onecloud/pkg/httperrors"
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)
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type EndpointGenerator func(context.Context, *http.Request) (string, error)
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type RequestManipulator func(ctx context.Context, r *http.Request) (*http.Request, error)
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type SEndpointFactory struct {
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generator EndpointGenerator
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serviceName string
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}
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func NewEndpointFactory(f EndpointGenerator, serviceName string) *SEndpointFactory {
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return &SEndpointFactory{
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generator: f,
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serviceName: serviceName,
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}
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}
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type SReverseProxy struct {
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*SEndpointFactory
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manipulator RequestManipulator
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}
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func NewHTTPReverseProxy(ef *SEndpointFactory, m RequestManipulator) *SReverseProxy {
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return &SReverseProxy{
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SEndpointFactory: ef,
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manipulator: m,
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}
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}
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func (p *SReverseProxy) ServeHTTP(ctx context.Context, w http.ResponseWriter, r *http.Request) {
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ctx = appctx.WithRequestLang(ctx, r)
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endpoint, err := p.generator(ctx, r)
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if err != nil {
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httperrors.InternalServerError(ctx, w, "%v", err)
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return
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}
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remoteUrl, err := url.Parse(endpoint)
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if err != nil {
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httperrors.InternalServerError(ctx, w, "failed parsing url %q: %v", endpoint, err)
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return
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}
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log.Debugf("Forwarding to servie: %q, url: %q", p.serviceName, remoteUrl.String())
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proxy := httputil.NewSingleHostReverseProxy(remoteUrl)
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proxy.Transport = &http.Transport{
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Proxy: http.ProxyFromEnvironment,
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TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
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DisableKeepAlives: true,
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}
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r, err = p.manipulator(ctx, r)
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if err != nil {
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httperrors.InternalServerError(ctx, w, "%v", err)
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return
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}
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proxy.ServeHTTP(w, r)
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}
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