mirror of
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synced 2026-09-20 16:13:56 +08:00
80 lines
2.4 KiB
Go
80 lines
2.4 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 handler
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import (
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"context"
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"net/http"
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"net/url"
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"strings"
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"yunion.io/x/log"
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"yunion.io/x/onecloud/pkg/appctx"
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"yunion.io/x/onecloud/pkg/appsrv"
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"yunion.io/x/onecloud/pkg/httperrors"
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"yunion.io/x/onecloud/pkg/mcclient/auth"
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"yunion.io/x/onecloud/pkg/proxy"
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)
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type SBackendServiceProxyHandler struct {
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prefix string
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}
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func NewBackendServiceProxyHandler(prefix string) *SBackendServiceProxyHandler {
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return &SBackendServiceProxyHandler{
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prefix: prefix,
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}
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}
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func (h *SBackendServiceProxyHandler) requestManipulator(ctx context.Context, r *http.Request) (*http.Request, error) {
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// remove leading prefixes /api/s/<service>
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path := r.URL.Path[len("/api/s/"):]
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slashPos := strings.Index(path, "/")
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if slashPos <= 0 {
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return r, httperrors.NewBadRequestError("invalid request URL %s", r.URL.Path)
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}
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path = path[slashPos:]
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log.Debugf("Path: %s => %s", r.URL.Path, path)
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r.URL = &url.URL{
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Path: path,
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RawQuery: r.URL.RawQuery,
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Fragment: r.URL.Fragment,
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}
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return r, nil
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}
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func (h *SBackendServiceProxyHandler) Bind(app *appsrv.Application) {
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app.AddReverseProxyHandler(h.prefix, h.fetchReverseEndpoint(), h.requestManipulator)
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}
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func (h *SBackendServiceProxyHandler) fetchReverseEndpoint() *proxy.SEndpointFactory {
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f := func(ctx context.Context, r *http.Request) (string, error) {
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params := appctx.AppContextParams(ctx)
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serviceName := params["<service>"]
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if len(serviceName) == 0 {
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return "", httperrors.NewBadRequestError("no service")
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}
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endpointType := "internalURL"
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session := auth.GetAdminSession(ctx, FetchRegion(r))
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ep, err := session.GetServiceURL(serviceName, endpointType, "")
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if err != nil {
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return "", httperrors.NewBadRequestError("invalid service %s: %s", serviceName, err)
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}
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return getEndpointSchemeHost(ep)
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}
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return proxy.NewEndpointFactory(f, "backendService")
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}
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