Files
proton-bridge/internal/frontend/cli/frontend.go
2020-08-24 10:11:51 +02:00

263 lines
8.7 KiB
Go

// Copyright (c) 2020 Proton Technologies AG
//
// This file is part of ProtonMail Bridge.
//
// ProtonMail Bridge 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.
//
// ProtonMail Bridge 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 ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>.
// Package cli provides CLI interface of the Bridge.
package cli
import (
"github.com/ProtonMail/proton-bridge/internal/events"
"github.com/ProtonMail/proton-bridge/internal/frontend/types"
"github.com/ProtonMail/proton-bridge/pkg/config"
"github.com/ProtonMail/proton-bridge/pkg/listener"
"github.com/abiosoft/ishell"
"github.com/sirupsen/logrus"
)
var (
log = logrus.WithField("pkg", "frontend/cli") //nolint[gochecknoglobals]
)
type frontendCLI struct {
*ishell.Shell
config *config.Config
preferences *config.Preferences
eventListener listener.Listener
updates types.Updater
bridge types.Bridger
appRestart bool
}
// New returns a new CLI frontend configured with the given options.
func New( //nolint[funlen]
panicHandler types.PanicHandler,
config *config.Config,
preferences *config.Preferences,
eventListener listener.Listener,
updates types.Updater,
bridge types.Bridger,
) *frontendCLI { //nolint[golint]
fe := &frontendCLI{
Shell: ishell.New(),
config: config,
preferences: preferences,
eventListener: eventListener,
updates: updates,
bridge: bridge,
appRestart: false,
}
// Clear commands.
clearCmd := &ishell.Cmd{Name: "clear",
Help: "remove stored accounts and preferences. (alias: cl)",
Aliases: []string{"cl"},
}
clearCmd.AddCmd(&ishell.Cmd{Name: "cache",
Help: "remove stored preferences for accounts (aliases: c, prefs, preferences)",
Aliases: []string{"c", "prefs", "preferences"},
Func: fe.deleteCache,
})
clearCmd.AddCmd(&ishell.Cmd{Name: "accounts",
Help: "remove all accounts from keychain. (aliases: a, k, keychain)",
Aliases: []string{"a", "k", "keychain"},
Func: fe.deleteAccounts,
})
fe.AddCmd(clearCmd)
// Change commands.
changeCmd := &ishell.Cmd{Name: "change",
Help: "change server or account settings (aliases: ch, switch)",
Aliases: []string{"ch", "switch"},
}
changeCmd.AddCmd(&ishell.Cmd{Name: "mode",
Help: "switch between combined addresses and split addresses mode for account. Use index or account name as parameter. (alias: m)",
Aliases: []string{"m"},
Func: fe.changeMode,
Completer: fe.completeUsernames,
})
changeCmd.AddCmd(&ishell.Cmd{Name: "port",
Help: "change port numbers of IMAP and SMTP servers. (alias: p)",
Aliases: []string{"p"},
Func: fe.changePort,
})
changeCmd.AddCmd(&ishell.Cmd{Name: "proxy",
Help: "allow or disallow bridge to securely connect to proton via a third party when it is being blocked",
Func: fe.toggleAllowProxy,
})
changeCmd.AddCmd(&ishell.Cmd{Name: "smtp-security",
Help: "change port numbers of IMAP and SMTP servers.(alias: ssl, starttls)",
Aliases: []string{"ssl", "starttls"},
Func: fe.changeSMTPSecurity,
})
fe.AddCmd(changeCmd)
// Check commands.
checkCmd := &ishell.Cmd{Name: "check", Help: "check internet connection or new version."}
checkCmd.AddCmd(&ishell.Cmd{Name: "updates",
Help: "check for Bridge updates. (aliases: u, v, version)",
Aliases: []string{"u", "version", "v"},
Func: fe.checkUpdates,
})
checkCmd.AddCmd(&ishell.Cmd{Name: "internet",
Help: "check internet connection. (aliases: i, conn, connection)",
Aliases: []string{"i", "con", "connection"},
Func: fe.checkInternetConnection,
})
fe.AddCmd(checkCmd)
// Print info commands.
fe.AddCmd(&ishell.Cmd{Name: "log-dir",
Help: "print path to directory with logs. (aliases: log, logs)",
Aliases: []string{"log", "logs"},
Func: fe.printLogDir,
})
fe.AddCmd(&ishell.Cmd{Name: "manual",
Help: "print URL with instructions. (alias: man)",
Aliases: []string{"man"},
Func: fe.printManual,
})
fe.AddCmd(&ishell.Cmd{Name: "release-notes",
Help: "print release notes. (aliases: notes, fixed-bugs, bugs, ver, version)",
Aliases: []string{"notes", "fixed-bugs", "bugs", "ver", "version"},
Func: fe.printLocalReleaseNotes,
})
fe.AddCmd(&ishell.Cmd{Name: "credits",
Help: "print used resources.",
Func: fe.printCredits,
})
// Account commands.
fe.AddCmd(&ishell.Cmd{Name: "list",
Help: "print the list of accounts. (aliases: l, ls)",
Func: fe.noAccountWrapper(fe.listAccounts),
Aliases: []string{"l", "ls"},
})
fe.AddCmd(&ishell.Cmd{Name: "info",
Help: "print the configuration for account. Use index or account name as parameter. (alias: i)",
Func: fe.noAccountWrapper(fe.showAccountInfo),
Completer: fe.completeUsernames,
Aliases: []string{"i"},
})
fe.AddCmd(&ishell.Cmd{Name: "login",
Help: "login procedure to add or connect account. Optionally use index or account as parameter. (aliases: a, add, con, connect)",
Func: fe.loginAccount,
Aliases: []string{"add", "a", "con", "connect"},
Completer: fe.completeUsernames,
})
fe.AddCmd(&ishell.Cmd{Name: "logout",
Help: "disconnect the account. Use index or account name as parameter. (aliases: d, disconnect)",
Func: fe.noAccountWrapper(fe.logoutAccount),
Aliases: []string{"d", "disconnect"},
Completer: fe.completeUsernames,
})
fe.AddCmd(&ishell.Cmd{Name: "delete",
Help: "remove the account from keychain. Use index or account name as parameter. (aliases: del, rm, remove)",
Func: fe.noAccountWrapper(fe.deleteAccount),
Aliases: []string{"del", "rm", "remove"},
Completer: fe.completeUsernames,
})
// System commands.
fe.AddCmd(&ishell.Cmd{Name: "restart",
Help: "restart the bridge.",
Func: fe.restart,
})
go func() {
defer panicHandler.HandlePanic()
fe.watchEvents()
}()
fe.eventListener.RetryEmit(events.TLSCertIssue)
fe.eventListener.RetryEmit(events.ErrorEvent)
return fe
}
func (f *frontendCLI) watchEvents() {
errorCh := f.getEventChannel(events.ErrorEvent)
internetOffCh := f.getEventChannel(events.InternetOffEvent)
internetOnCh := f.getEventChannel(events.InternetOnEvent)
addressChangedCh := f.getEventChannel(events.AddressChangedEvent)
addressChangedLogoutCh := f.getEventChannel(events.AddressChangedLogoutEvent)
logoutCh := f.getEventChannel(events.LogoutEvent)
certIssue := f.getEventChannel(events.TLSCertIssue)
for {
select {
case errorDetails := <-errorCh:
f.Println("Bridge failed:", errorDetails)
case <-internetOffCh:
f.notifyInternetOff()
case <-internetOnCh:
f.notifyInternetOn()
case address := <-addressChangedCh:
f.Printf("Address changed for %s. You may need to reconfigure your email client.", address)
case address := <-addressChangedLogoutCh:
f.notifyLogout(address)
case userID := <-logoutCh:
user, err := f.bridge.GetUser(userID)
if err != nil {
return
}
f.notifyLogout(user.Username())
case <-certIssue:
f.notifyCertIssue()
}
}
}
func (f *frontendCLI) getEventChannel(event string) <-chan string {
ch := make(chan string)
f.eventListener.Add(event, ch)
return ch
}
// IsAppRestarting returns whether the app is currently set to restart.
func (f *frontendCLI) IsAppRestarting() bool {
return f.appRestart
}
// Loop starts the frontend loop with an interactive shell.
func (f *frontendCLI) Loop(credentialsError error) error {
if credentialsError != nil {
f.notifyCredentialsError()
return credentialsError
}
f.Print(`
Welcome to ProtonMail Bridge interactive shell
___....___
^^ __..-:'':__:..:__:'':-..__
_.-:__:.-:'': : : :'':-.:__:-._
.':.-: : : : : : : : : :._:'.
_ :.': : : : : : : : : : : :'.: _
[ ]: : : : : : : : : : : : : :[ ]
[ ]: : : : : : : : : : : : : :[ ]
:::::::::[ ]:__:__:__:__:__:__:__:__:__:__:__:__:__:[ ]:::::::::::
!!!!!!!!![ ]!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![ ]!!!!!!!!!!!
^^^^^^^^^[ ]^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^[ ]^^^^^^^^^^^
[ ] [ ]
[ ] [ ]
jgs [ ] [ ]
~~^_~^~/ \~^-~^~ _~^-~_^~-^~_^~~-^~_~^~-~_~-^~_^/ \~^ ~~_ ^
`)
f.Run()
return nil
}