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| 1 | +// This file is a part of EverythingSuckz/TG-FileStreamBot |
| 2 | +// And is licenced under the Affero General Public License. |
| 3 | +// Any distributions of this code MUST be accompanied by a copy of the AGPL |
| 4 | +// with proper attribution to the original author(s). |
| 5 | + |
| 6 | +package qrlogin |
| 7 | + |
| 8 | +import ( |
| 9 | + "bufio" |
| 10 | + "context" |
| 11 | + "encoding/json" |
| 12 | + "errors" |
| 13 | + "fmt" |
| 14 | + "os" |
| 15 | + "runtime" |
| 16 | + "strings" |
| 17 | + "time" |
| 18 | + |
| 19 | + "github.com/gotd/td/session" |
| 20 | + "github.com/gotd/td/telegram" |
| 21 | + "github.com/gotd/td/telegram/auth/qrlogin" |
| 22 | + "github.com/gotd/td/tg" |
| 23 | + "github.com/gotd/td/tgerr" |
| 24 | + "github.com/mdp/qrterminal" |
| 25 | +) |
| 26 | + |
| 27 | +type CustomWriter struct { |
| 28 | + LineLength int |
| 29 | +} |
| 30 | + |
| 31 | +func (w *CustomWriter) Write(p []byte) (n int, err error) { |
| 32 | + for _, c := range p { |
| 33 | + if c == '\n' { |
| 34 | + w.LineLength++ |
| 35 | + } |
| 36 | + } |
| 37 | + return os.Stdout.Write(p) |
| 38 | +} |
| 39 | + |
| 40 | +func printQrCode(data string, writer *CustomWriter) { |
| 41 | + qrterminal.GenerateHalfBlock(data, qrterminal.L, writer) |
| 42 | +} |
| 43 | + |
| 44 | +func clearQrCode(writer *CustomWriter) { |
| 45 | + for i := 0; i < writer.LineLength; i++ { |
| 46 | + fmt.Printf("\033[F\033[K") |
| 47 | + } |
| 48 | + writer.LineLength = 0 |
| 49 | +} |
| 50 | + |
| 51 | +func GenerateQRSession(apiId int, apiHash string) error { |
| 52 | + ctx, cancel := context.WithCancel(context.Background()) |
| 53 | + defer cancel() |
| 54 | + fmt.Println("Generating QR session...") |
| 55 | + reader := bufio.NewReader(os.Stdin) |
| 56 | + dispatcher := tg.NewUpdateDispatcher() |
| 57 | + loggedIn := qrlogin.OnLoginToken(dispatcher) |
| 58 | + sessionStorage := &session.StorageMemory{} |
| 59 | + client := telegram.NewClient(apiId, apiHash, telegram.Options{ |
| 60 | + UpdateHandler: dispatcher, |
| 61 | + SessionStorage: sessionStorage, |
| 62 | + Device: telegram.DeviceConfig{ |
| 63 | + DeviceModel: "Pyrogram", |
| 64 | + SystemVersion: runtime.GOOS, |
| 65 | + AppVersion: "2.0", |
| 66 | + }, |
| 67 | + }) |
| 68 | + var stringSession string |
| 69 | + qrWriter := &CustomWriter{} |
| 70 | + tickerCtx, cancelTicker := context.WithCancel(context.Background()) |
| 71 | + err := client.Run(ctx, func(ctx context.Context) error { |
| 72 | + authorization, err := client.QR().Auth(ctx, loggedIn, func(ctx context.Context, token qrlogin.Token) error { |
| 73 | + if qrWriter.LineLength == 0 { |
| 74 | + fmt.Printf("\033[F\033[K") |
| 75 | + } |
| 76 | + clearQrCode(qrWriter) |
| 77 | + printQrCode(token.URL(), qrWriter) |
| 78 | + qrWriter.Write([]byte("\nTo log in, Open your Telegram app and go to Settings > Devices > Scan QR and scan the QR code.\n")) |
| 79 | + go func(ctx context.Context) { |
| 80 | + ticker := time.NewTicker(1 * time.Second) |
| 81 | + defer ticker.Stop() |
| 82 | + for { |
| 83 | + select { |
| 84 | + case <-ctx.Done(): |
| 85 | + return |
| 86 | + case <-ticker.C: |
| 87 | + expiresIn := time.Until(token.Expires()) |
| 88 | + if expiresIn <= 0 { |
| 89 | + return |
| 90 | + } |
| 91 | + fmt.Printf("\rThis code expires in %s", expiresIn.Truncate(time.Second)) |
| 92 | + } |
| 93 | + } |
| 94 | + }(tickerCtx) |
| 95 | + return nil |
| 96 | + }) |
| 97 | + if err != nil { |
| 98 | + if tgerr.Is(err, "SESSION_PASSWORD_NEEDED") { |
| 99 | + cancelTicker() |
| 100 | + fmt.Println("\n2FA password is required, enter it below: ") |
| 101 | + passkey, _ := reader.ReadString('\n') |
| 102 | + strippedPasskey := strings.TrimSpace(passkey) |
| 103 | + authorization, err = client.Auth().Password(ctx, strippedPasskey) |
| 104 | + if err != nil { |
| 105 | + if err.Error() == "invalid password" { |
| 106 | + fmt.Println("Invalid password, please try again.") |
| 107 | + } |
| 108 | + fmt.Println("Error while logging in: ", err) |
| 109 | + return nil |
| 110 | + } |
| 111 | + } |
| 112 | + } |
| 113 | + if authorization == nil { |
| 114 | + cancel() |
| 115 | + return errors.New("authorization is nil") |
| 116 | + } |
| 117 | + user, err := client.Self(ctx) |
| 118 | + if err != nil { |
| 119 | + return err |
| 120 | + } |
| 121 | + if user.Username == "" { |
| 122 | + fmt.Println("Logged in as ", user.FirstName, user.LastName) |
| 123 | + } else { |
| 124 | + fmt.Println("Logged in as @", user.Username) |
| 125 | + } |
| 126 | + res, _ := sessionStorage.LoadSession(ctx) |
| 127 | + type jsonDataStruct struct { |
| 128 | + Version int |
| 129 | + Data session.Data |
| 130 | + } |
| 131 | + var jsonData jsonDataStruct |
| 132 | + json.Unmarshal(res, &jsonData) |
| 133 | + stringSession, err = EncodeToPyrogramSession(&jsonData.Data, int32(apiId)) |
| 134 | + if err != nil { |
| 135 | + return err |
| 136 | + } |
| 137 | + fmt.Println("Your pyrogram session string:", stringSession) |
| 138 | + client.API().MessagesSendMessage( |
| 139 | + ctx, |
| 140 | + &tg.MessagesSendMessageRequest{ |
| 141 | + NoWebpage: true, |
| 142 | + Peer: &tg.InputPeerSelf{}, |
| 143 | + Message: "Your pyrogram session string: " + stringSession, |
| 144 | + }, |
| 145 | + ) |
| 146 | + return nil |
| 147 | + }) |
| 148 | + if err != nil { |
| 149 | + return err |
| 150 | + } |
| 151 | + return nil |
| 152 | +} |
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