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Fix: Resolve SSH X11 Forwarding Repeated Handshake and Key Confirmation Issue #9544

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18 changes: 15 additions & 3 deletions tabby-ssh/src/session/ssh.ts
Original file line number Diff line number Diff line change
Expand Up @@ -205,10 +205,22 @@ export class SSHSession {
}

const hostVerifiedPromise: Promise<void> = new Promise((resolve, reject) => {
let hostkeyOld = ''
let isKeyVerified = false
ssh.on('handshake', async handshake => {
if (!await this.verifyHostKey(handshake)) {
this.ssh.end()
reject(new Error('Host key verification failed'))
if (isKeyVerified) {
resolve()
return
}
if (hostkeyOld !== handshake.serverHostKey) {
hostkeyOld = handshake.serverHostKey
if (!await this.verifyHostKey(handshake)) {
this.ssh.end()
reject(new Error('Host key verification failed'))
isKeyVerified = false
}else {
isKeyVerified = true
}
}
this.logger.info('Handshake complete:', handshake)
resolve()
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