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feat: LINE QR Login as Primary login #259
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| package connector | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "time" | ||
|
|
||
| "maunium.net/go/mautrix/bridgev2" | ||
|
|
||
| "github.com/highesttt/matrix-line-messenger/pkg/line" | ||
| ) | ||
|
|
||
| type LineQRLogin struct { | ||
| login *LineEmailLogin | ||
| client *line.Client | ||
| session string | ||
| qr *line.QRCodeResponse | ||
| poll chan error | ||
| pin bool | ||
| } | ||
|
|
||
| var _ bridgev2.LoginProcessDisplayAndWait = (*LineQRLogin)(nil) | ||
| var _ bridgev2.LoginProcessWithOverride = (*LineQRLogin)(nil) | ||
|
|
||
| func (lq *LineQRLogin) StartWithOverride(ctx context.Context, override *bridgev2.UserLogin) (*bridgev2.LoginStep, error) { | ||
| meta, ok := override.Metadata.(*UserLoginMetadata) | ||
| if !ok { | ||
| return nil, fmt.Errorf("existing LINE login metadata has unexpected type %T", override.Metadata) | ||
| } | ||
| lq.login.ExistingLogin, lq.login.ExistingMetadata = override, meta | ||
| lq.login.Certificate = meta.Certificate | ||
| if meta.ForceFullE2EELogin || len(meta.ExportedKeyMap) == 0 { | ||
| lq.login.Certificate = "" | ||
| } | ||
| return lq.Start(ctx) | ||
| } | ||
|
|
||
| func (lq *LineQRLogin) Start(ctx context.Context) (*bridgev2.LoginStep, error) { | ||
| ll := lq.login | ||
| ll.mu.Lock() | ||
| if ll.canceled || ll.attemptCtx != nil { | ||
| ll.mu.Unlock() | ||
| return nil, fmt.Errorf("QR login is already started or canceled") | ||
| } | ||
| ll.attemptCtx, ll.attemptCancel = context.WithTimeout(context.WithoutCancel(ctx), 10*time.Minute) | ||
| processCtx := ll.attemptCtx | ||
| ll.mu.Unlock() | ||
| stop := context.AfterFunc(ctx, ll.attemptCancel) | ||
| defer stop() | ||
| client := newLineAPIClient("") | ||
| session, qr, err := client.StartQRLogin(processCtx) | ||
| ll.mu.Lock() | ||
| ll.attempt = client.LoginAttempt | ||
| canceled := ll.canceled || ctx.Err() != nil || processCtx.Err() != nil | ||
| ll.mu.Unlock() | ||
| if err != nil || canceled { | ||
| lq.Cancel() | ||
| if canceled { | ||
| return nil, context.Canceled | ||
| } | ||
| return nil, err | ||
| } | ||
| lq.client, lq.session, lq.qr = client, session, qr | ||
| timeout := time.Duration(qr.LongPollingIntervalSeconds) * time.Second | ||
| if timeout <= 0 { | ||
| timeout = 150 * time.Second | ||
| } | ||
| lq.startPoll(func(ctx context.Context, session string) error { | ||
| return client.CheckQRCodeVerifiedContext(ctx, session, timeout) | ||
| }, true) | ||
| return &bridgev2.LoginStep{ | ||
| Type: bridgev2.LoginStepTypeDisplayAndWait, StepID: "dev.highest.matrix.line.qr", | ||
| Instructions: "Scan this QR code with the LINE mobile app.", | ||
| DisplayAndWaitParams: &bridgev2.LoginDisplayAndWaitParams{Type: bridgev2.LoginDisplayTypeQR, Data: qr.CallbackURL}, | ||
| }, nil | ||
| } | ||
|
|
||
| func (lq *LineQRLogin) startPoll(check func(context.Context, string) error, retryExpired bool) { | ||
| result := make(chan error, 1) | ||
| lq.poll = result | ||
| ctx, session, qr := lq.login.attemptCtx, lq.session, lq.qr | ||
| go func() { | ||
| count := max(1, min(qr.LongPollingMaxCount, 10)) | ||
| for attempt := 0; ; attempt++ { | ||
| err := check(ctx, session) | ||
| if err == nil || ctx.Err() != nil || attempt+1 >= count || !retryExpired || !line.IsQRLoginPollExpired(err) { | ||
| result <- err | ||
| return | ||
| } | ||
| timer := time.NewTimer(min(time.Second<<attempt, 30*time.Second)) | ||
| select { | ||
| case <-ctx.Done(): | ||
| timer.Stop() | ||
| result <- ctx.Err() | ||
| return | ||
| case <-timer.C: | ||
| } | ||
| } | ||
| }() | ||
| } | ||
|
|
||
| func (lq *LineQRLogin) Wait(ctx context.Context) (*bridgev2.LoginStep, error) { | ||
| if lq.poll == nil { | ||
| return nil, fmt.Errorf("QR login has not started") | ||
| } | ||
| select { | ||
| case err := <-lq.poll: | ||
| if err != nil { | ||
| lq.Cancel() | ||
| return nil, err | ||
| } | ||
| case <-lq.login.attemptCtx.Done(): | ||
| lq.Cancel() | ||
| return nil, lq.login.attemptCtx.Err() | ||
| case <-ctx.Done(): | ||
| lq.Cancel() | ||
| return nil, ctx.Err() | ||
| } | ||
| if !lq.pin { | ||
| verified, err := lq.client.VerifyQRCertificate(ctx, lq.session, lq.login.Certificate) | ||
| if err != nil { | ||
| lq.Cancel() | ||
| return nil, err | ||
| } | ||
| if verified { | ||
| return lq.finish(ctx) | ||
| } | ||
| pin, err := lq.client.CreatePinCode(ctx, lq.session) | ||
| if err != nil { | ||
| lq.Cancel() | ||
| return nil, err | ||
| } | ||
| lq.pin = true | ||
| lq.startPoll(lq.client.CheckPinCodeVerifiedContext, false) | ||
| return &bridgev2.LoginStep{ | ||
| Type: bridgev2.LoginStepTypeDisplayAndWait, StepID: "dev.highest.matrix.line.qr_pin", | ||
| Instructions: "Enter the displayed PIN in the LINE mobile app.", | ||
| DisplayAndWaitParams: &bridgev2.LoginDisplayAndWaitParams{Type: bridgev2.LoginDisplayTypeCode, Data: pin}, | ||
| }, nil | ||
| } | ||
| return lq.finish(ctx) | ||
| } | ||
|
|
||
| func (lq *LineQRLogin) finish(ctx context.Context) (*bridgev2.LoginStep, error) { | ||
| defer lq.Cancel() | ||
| res, err := lq.client.QRCodeLoginV2(ctx, lq.session) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return lq.login.finishLogin(ctx, res) | ||
| } | ||
|
|
||
| func (lq *LineQRLogin) Cancel() { | ||
| lq.login.Cancel() | ||
| } | ||
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