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package backend
import (
"log"
"os"
"0xacab.org/leap/bitmask-vpn/pkg/bitmask"
"0xacab.org/leap/bitmask-vpn/pkg/config"
"0xacab.org/leap/bitmask-vpn/pkg/config/version"
"0xacab.org/leap/bitmask-vpn/pkg/pid"
)
// initializeContext initializes an empty connStatus and assigns it to the
// global ctx holder. This is expected to be called only once, so the public
// api uses the sync.Once primitive to call this.
func initializeContext(opts *InitOpts) {
var st status = off
// TODO - now there's really no need to dance between opts and config anymore
// but this was the simplest transition. We should probably keep the multi-provider config in the backend too, and just
// switch the "active" here in the ctx, after the user has selected one in the combobox.
ctx = &connectionCtx{
AppName: opts.ProviderOptions.AppName,
Provider: opts.ProviderOptions.Provider,
TosURL: opts.ProviderOptions.TosURL,
HelpURL: opts.ProviderOptions.HelpURL,
DonateURL: opts.ProviderOptions.DonateURL,
AskForDonations: opts.ProviderOptions.AskForDonations,
DonateDialog: false,
Version: version.VERSION,
Status: st,
IsReady: false,
}
errCh := make(chan string)
go checkErrors(errCh)
// isReady is set after Bitmask initialization
initializeBitmask(errCh, opts)
go trigger(OnStatusChanged)
ctx.delayCheckForGateways()
}
func checkErrors(errCh chan string) {
for {
err := <-errCh
// TODO consider a queue instead
ctx.Errors = err
go trigger(OnStatusChanged)
}
}
func initializeBitmask(errCh chan string, opts *InitOpts) {
if ctx == nil {
log.Println("BUG: cannot initialize bitmask, ctx is nil!")
os.Exit(1)
}
bitmask.InitializeLogger()
ctx.cfg = config.ParseConfig()
setConfigOpts(opts, ctx.cfg)
err := pid.AcquirePID()
if err != nil {
log.Println("Error acquiring PID:", err)
log.Fatal(err.Error())
}
b, err := bitmask.InitializeBitmask(ctx.cfg)
if err != nil {
log.Println("ERROR: cannot initialize bitmask")
errCh <- err.Error()
return
}
ctx.autostart = initializeAutostart(ctx.cfg)
helpers, privilege, err := b.VPNCheck()
if err != nil {
log.Println("ERROR: vpn check")
errCh <- err.Error()
}
if helpers == false {
log.Println("ERROR: no helpers")
errCh <- "nohelpers"
}
if privilege == false {
log.Println("ERROR: no polkit")
errCh <- "nopolkit"
}
ctx.bm = b
ctx.IsReady = true
}
func setConfigOpts(opts *InitOpts, conf *config.Config) {
conf.SkipLaunch = opts.SkipLaunch
if opts.StartVPN != "" {
if opts.StartVPN != "on" && opts.StartVPN != "off" {
log.Println("-start-vpn should be 'on' or 'off'")
} else {
conf.StartVPN = opts.StartVPN == "on"
}
}
if opts.Obfs4 {
conf.Obfs4 = opts.Obfs4
}
if opts.DisableAutostart {
conf.DisableAustostart = opts.DisableAutostart
}
}
func initializeAutostart(conf *config.Config) bitmask.Autostart {
autostart := bitmask.NewAutostart(config.ApplicationName, "")
if conf.SkipLaunch || conf.DisableAustostart {
autostart.Disable()
autostart = &bitmask.DummyAutostart{}
}
err := autostart.Enable()
if err != nil {
log.Printf("Error enabling autostart: %v", err)
}
return autostart
}
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