mirror of
https://github.com/gravitational/teleport.git
synced 2026-10-31 20:39:37 +08:00
79 lines
2.2 KiB
Go
79 lines
2.2 KiB
Go
/*
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Copyright 2015 Gravitational, Inc.
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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 regular
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import (
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"context"
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"encoding/json"
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"github.com/gravitational/trace"
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"golang.org/x/crypto/ssh"
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"github.com/gravitational/teleport/api/types"
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"github.com/gravitational/teleport/lib/srv"
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)
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// proxySubsys is an SSH subsystem for easy proxyneling through proxy server
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// This subsystem creates a new TCP connection and connects ssh channel
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// with this connection
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type proxySitesSubsys struct {
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srv *Server
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}
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func parseProxySitesSubsys(name string, srv *Server) (*proxySitesSubsys, error) {
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return &proxySitesSubsys{
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srv: srv,
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}, nil
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}
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func (t *proxySitesSubsys) String() string {
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return "proxySites()"
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}
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func (t *proxySitesSubsys) Wait() error {
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return nil
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}
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// Start serves a request for "proxysites" custom SSH subsystem. It builds an array of
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// service.Site structures, and writes it serialized as JSON back to the SSH client
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func (t *proxySitesSubsys) Start(ctx context.Context, sconn *ssh.ServerConn, ch ssh.Channel, req *ssh.Request, serverContext *srv.ServerContext) error {
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log.Debugf("proxysites.start(%v)", serverContext)
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remoteSites, err := t.srv.tunnelWithAccessChecker(serverContext).GetSites()
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if err != nil {
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return trace.Wrap(err)
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}
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// build an arary of services.Site structures:
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retval := make([]types.Site, 0, len(remoteSites))
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for _, s := range remoteSites {
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retval = append(retval, types.Site{
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Name: s.GetName(),
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Status: s.GetStatus(),
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LastConnected: s.GetLastConnected(),
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})
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}
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// serialize them into JSON and write back:
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data, err := json.Marshal(retval)
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if err != nil {
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return trace.Wrap(err)
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}
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if _, err := ch.Write(data); err != nil {
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return trace.Wrap(err)
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}
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return nil
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}
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