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// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"fmt"
"github.com/ethereum/go-ethereum/log"
)
// ensureVirtualHost checks whether a reverse-proxy is running on the specified
// host machine, and if yes requests a virtual host from the user to host a
// specific web service on. If no proxy exists, the method will offer to deploy
// one.
//
// If the user elects not to use a reverse proxy, an empty hostname is returned!
func (w *wizard) ensureVirtualHost(client *sshClient, port int, def string) (string, error) {
proxy, _ := checkNginx(client, w.network)
if proxy != nil {
// Reverse proxy is running, if ports match, we need a virtual host
if proxy.port == port {
fmt.Println()
fmt.Printf("Shared port, which domain to assign? (default = %s)\n", def)
return w.readDefaultString(def), nil
}
}
// Reverse proxy is not running, offer to deploy a new one
fmt.Println()
fmt.Println("Allow sharing the port with other services (y/n)? (default = yes)")
if w.readDefaultString("y") == "y" {
nocache := false
if proxy != nil {
fmt.Println()
fmt.Printf("Should the reverse-proxy be rebuilt from scratch (y/n)? (default = no)\n")
nocache = w.readDefaultString("n") != "n"
}
if out, err := deployNginx(client, w.network, port, nocache); err != nil {
log.Error("Failed to deploy reverse-proxy", "err", err)
if len(out) > 0 {
fmt.Printf("%s\n", out)
}
return "", err
}
// Reverse proxy deployed, ask again for the virtual-host
fmt.Println()
fmt.Printf("Proxy deployed, which domain to assign? (default = %s)\n", def)
return w.readDefaultString(def), nil
}
// Reverse proxy not requested, deploy as a standalone service
return "", nil
}
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