Adam Van Ymeren
7a04f298d2
- update to latest telegram layer - remove some references to fields in tg.Entities that don't exist in the schema - originally added here: https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e - referenced here - https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3 - https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e
60 lines
1.2 KiB
Go
60 lines
1.2 KiB
Go
package obfuscated2
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import (
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"io"
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"github.com/go-faster/errors"
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"go.mau.fi/mautrix-telegram/pkg/gotd/mtproxy"
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)
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// Obfuscated2 implements obfuscated2 obfuscation protocol.
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type Obfuscated2 struct {
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rand io.Reader
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conn io.ReadWriter
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keys
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}
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// NewObfuscated2 creates new Obfuscated2.
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func NewObfuscated2(r io.Reader, conn io.ReadWriter) *Obfuscated2 {
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return &Obfuscated2{
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rand: r,
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conn: conn,
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}
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}
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// Handshake sends obfuscated2 header.
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func (o *Obfuscated2) Handshake(protocol [4]byte, dc int, s mtproxy.Secret) error {
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k, err := generateKeys(o.rand, protocol, s.Secret, dc)
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if err != nil {
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return errors.Wrap(err, "generate keys")
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}
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o.keys = k
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if _, err := o.conn.Write(o.header); err != nil {
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return errors.Wrap(err, "write obfuscated header")
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}
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return nil
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}
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// Write implements io.Writer.
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func (o *Obfuscated2) Write(b []byte) (n int, err error) {
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cpyB := append([]byte(nil), b...)
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o.encrypt.XORKeyStream(cpyB, b)
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return o.conn.Write(cpyB)
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}
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// Read implements io.Reader.
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func (o *Obfuscated2) Read(b []byte) (int, error) {
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n, err := o.conn.Read(b)
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if err != nil {
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return n, err
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}
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if n > 0 {
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o.decrypt.XORKeyStream(b, b)
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}
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return n, err
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}
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