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config-proxy-url.go
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/
config-proxy-url.go
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/*
* Copyright (c) 2018. Abstrium SAS <team (at) pydio.com>
* This file is part of Pydio Cells.
*
* Pydio Cells is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Pydio Cells 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Pydio Cells. If not, see <http://www.gnu.org/licenses/>.
*
* The latest code can be found at <https://pydio.com>.
*/
package cmd
import (
"fmt"
"log"
"net/url"
"strings"
p "github.com/manifoldco/promptui"
"github.com/spf13/cobra"
"github.com/pydio/cells/common/proto/install"
"github.com/pydio/cells/common/utils/net"
)
var urlCmd = &cobra.Command{
Use: "url",
Short: "Manage main URLs of the application",
Long: `
`,
Run: func(cmd *cobra.Command, args []string) {
proxyConfig := loadProxyConf()
// Get SSL info from end user
e := promptURLs(proxyConfig, false)
if e != nil {
log.Fatal(e)
}
applyProxyConfig(proxyConfig)
cmd.Println("*************************************************************")
cmd.Println(" Config has been updated, please restart now!")
cmd.Println("**************************************************************")
},
}
func promptURLs(proxyConfig *install.ProxyConfig, includeTLS bool) (e error) {
// Get URL info from end user
e = promptBindURL(proxyConfig)
if e != nil {
return
}
if !includeTLS {
// TLS not included by default, still ask the user if he wants to change it
promptTls := p.Prompt{Label: "Do you want to change your TLS config as well? [y/N] ", Default: ""}
if val, e1 := promptTls.Run(); e1 == nil && (val == "Y" || val == "y" || val == "") {
includeTLS = true
}
}
if includeTLS {
_, e = promptTLSMode(proxyConfig)
if e != nil {
return
}
}
e = promptExtURL(proxyConfig)
if e != nil {
return
}
return
}
func promptBindURL(proxyConfig *install.ProxyConfig) (e error) {
defaultPort := "8080"
var bindHost string
defaultIps, e := net.GetAvailableIPs()
if e != nil {
return
}
var items []string
testExt, eExt := net.GetOutboundIP()
if eExt == nil {
items = append(items, fmt.Sprintf("%s:%s", testExt.String(), defaultPort))
}
for _, ip := range defaultIps {
if testExt != nil && testExt.String() == ip.String() {
continue
}
items = append(items, fmt.Sprintf("%s:%s", ip.String(), defaultPort))
}
items = append(items, "localhost:"+defaultPort, "0.0.0.0:"+defaultPort)
prompt := p.SelectWithAdd{
Label: "Internal Url (address that the web server will listen to, use ip:port or yourdomain.tld, without http/https)",
Items: items,
AddLabel: "Other",
Validate: validHostPort,
}
_, bindHost, e = prompt.Run()
if e != nil {
return
}
// Sanity checks
tmpBindStr, e1 := guessParsableURL(bindHost, true)
if e1 != nil {
return fmt.Errorf("could not parse provided host URL %s, please use an [IP|DOMAIN]:[PORT] string", bindHost)
}
bindURL, e1 := url.Parse(tmpBindStr)
if e1 != nil {
return fmt.Errorf("could not parse provided host URL %s, please use an [IP|DOMAIN]:[PORT] string", bindHost)
}
// Insure we have a port
// TODO let end user try again
parts := strings.Split(bindURL.Host, ":")
if len(parts) != 2 {
return fmt.Errorf("Please use an [IP|DOMAIN]:[PORT] string")
}
proxyConfig.BindURL = bindURL.String()
return nil
}
func promptExtURL(proxyConfig *install.ProxyConfig) error {
// Gather predefined info to enhance suggestions
bind, e := url.Parse(proxyConfig.GetBindURL())
if e != nil {
return e
}
parts := strings.Split(bind.Host, ":")
if len(parts) != 2 {
return fmt.Errorf("Bind URL %s is not valid. Please correct to use an [IP|DOMAIN]:[PORT] string", bind.Host)
}
extUrl := &url.URL{
Scheme: "http",
Host: bind.Host,
}
if parts[1] == "80" || parts[1] == "443" {
extUrl.Host = parts[0] // Strip port
}
if parts[1] == "443" || proxyConfig.GetTLSConfig() != nil {
extUrl.Scheme = "https"
}
external := extUrl.String()
fmt.Println("Your instance will be accessible at " + external + ". If you are behind a reverse proxy or inside a private network, you may need to manually set an alternative External URL. Do not change this is you are not sure!")
changeExternal := p.Select{
Label: "Setup a different URL for external access",
Items: []string{"Use " + external, "Set another URL"},
}
if choice, _, _ := changeExternal.Run(); choice == 1 {
extPrompt := p.Prompt{
Label: "External Url used to access application from outside world",
Validate: validScheme,
Default: extUrl.String(),
}
var err error
external, err = extPrompt.Run()
if err != nil {
return err
}
external = strings.TrimSuffix(external, "/")
}
_, err := url.Parse(external)
if err != nil {
return err
}
proxyConfig.ExternalURL = external
return nil
}
// helper to add a not-so-stupid scheme to URL strings to be then able to rely on the net/url package to manipulate URL.
func guessSchemeAndParseBaseURL(rawURL string, tlsEnabled bool) (*url.URL, error) {
wScheme, err := guessParsableURL(rawURL, tlsEnabled)
if err != nil {
return nil, fmt.Errorf("could not guess scheme for %s: %s", niBindUrl, err.Error())
}
return url.Parse(wScheme)
}
func guessParsableURL(rawURL string, tlsEnabled bool) (string, error) {
if strings.HasPrefix(rawURL, "http") {
return rawURL, nil
}
parts := strings.Split(rawURL, ":")
scheme := "https" // default to TLS
if len(parts) > 2 {
return rawURL, fmt.Errorf("could not process URL %s. We expect a host of form [IP|DOMAIN](:[PORT]) string", rawURL)
} else if len(parts) == 2 && parts[1] == "80" {
scheme = "http"
} else if !tlsEnabled {
scheme = "http"
}
return fmt.Sprintf("%s://%s", scheme, rawURL), nil
}
func init() {
proxyCmd.AddCommand(urlCmd)
}