69 lines
2.0 KiB
Go
69 lines
2.0 KiB
Go
package access
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import (
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"net/http"
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"net/url"
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"strings"
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"github.com/cloudflare/cloudflared/carrier"
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"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
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"github.com/cloudflare/cloudflared/validation"
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"github.com/pkg/errors"
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cli "gopkg.in/urfave/cli.v2"
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)
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// ssh will start a WS proxy server for server mode
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// or copy from stdin/stdout for client mode
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// useful for proxying other protocols (like ssh) over websockets
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// (which you can put Access in front of)
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func ssh(c *cli.Context) error {
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// get the hostname from the cmdline and error out if its not provided
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rawHostName := c.String(sshHostnameFlag)
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hostname, err := validation.ValidateHostname(rawHostName)
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if err != nil || rawHostName == "" {
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return cli.ShowCommandHelp(c, "ssh")
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}
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originURL := "https://" + hostname
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// get the headers from the cmdline and add them
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headers := buildRequestHeaders(c.StringSlice(sshHeaderFlag))
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if c.IsSet(sshTokenIDFlag) {
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headers.Add("CF-Access-Client-Id", c.String(sshTokenIDFlag))
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}
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if c.IsSet(sshTokenSecretFlag) {
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headers.Add("CF-Access-Client-Secret", c.String(sshTokenSecretFlag))
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}
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options := &carrier.StartOptions{
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OriginURL: originURL,
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Headers: headers,
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}
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if c.NArg() > 0 || c.IsSet(sshURLFlag) {
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localForwarder, err := config.ValidateUrl(c)
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if err != nil {
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logger.WithError(err).Error("Error validating origin URL")
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return errors.Wrap(err, "error validating origin URL")
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}
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forwarder, err := url.Parse(localForwarder)
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if err != nil {
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logger.WithError(err).Error("Error validating origin URL")
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return errors.Wrap(err, "error validating origin URL")
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}
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return carrier.StartServer(logger, forwarder.Host, shutdownC, options)
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}
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return carrier.StartClient(logger, &carrier.StdinoutStream{}, options)
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}
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func buildRequestHeaders(values []string) http.Header {
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headers := make(http.Header)
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for _, valuePair := range values {
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split := strings.Split(valuePair, ":")
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if len(split) > 1 {
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headers.Add(strings.TrimSpace(split[0]), strings.TrimSpace(split[1]))
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}
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}
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return headers
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}
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