mirror of https://github.com/tailscale/tailscale/
cmd/tsconnect: expose runSSHSession in npm package
Move it to lib/ so that it can be used in both the app and the package. Updates #5415 Signed-off-by: Mihai Parparita <mihai@tailscale.com>pull/5450/head
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import { Terminal } from "xterm"
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import { FitAddon } from "xterm-addon-fit"
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export type SSHSessionDef = {
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username: string
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hostname: string
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}
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export function runSSHSession(
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termContainerNode: HTMLDivElement,
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def: SSHSessionDef,
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ipn: IPN,
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onDone: () => void
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) {
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const term = new Terminal({
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cursorBlink: true,
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})
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const fitAddon = new FitAddon()
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term.loadAddon(fitAddon)
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term.open(termContainerNode)
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fitAddon.fit()
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let onDataHook: ((data: string) => void) | undefined
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term.onData((e) => {
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onDataHook?.(e)
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})
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term.focus()
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const sshSession = ipn.ssh(def.hostname, def.username, {
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writeFn: (input) => term.write(input),
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setReadFn: (hook) => (onDataHook = hook),
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rows: term.rows,
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cols: term.cols,
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onDone: () => {
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resizeObserver.disconnect()
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term.dispose()
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window.removeEventListener("beforeunload", handleBeforeUnload)
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onDone()
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},
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})
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// Make terminal and SSH session track the size of the containing DOM node.
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const resizeObserver = new ResizeObserver(() => fitAddon.fit())
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resizeObserver.observe(termContainerNode)
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term.onResize(({ rows, cols }) => sshSession.resize(rows, cols))
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// Close the session if the user closes the window without an explicit
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// exit.
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const handleBeforeUnload = () => sshSession.close()
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window.addEventListener("beforeunload", handleBeforeUnload)
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}
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