Get AP info

//native

/**

 * Get AP info

 * Run `show version` on an Instant AP through the REST show-command API and return the raw CLI output.

 */

export async function main(

  auth: RT.ArubaInstant,

  iap_ip_addr: string | undefined

) {

  return await showCommand(auth, "show version", iap_ip_addr)

}

// Instant REST API: POST /rest/login returns a session id (sid) that every

// monitoring call passes as a query parameter; GET /rest/show-cmd runs a CLI show command.

async function showCommand(

  auth: RT.ArubaInstant,

  cmd: string,

  iap_ip_addr: string | undefined

) {

  const base = auth.base_url.replace(/\/+$/, "")

  const login = await fetch(`${base}/rest/login`, {

    method: "POST",

    headers: { "Content-Type": "application/json", Accept: "application/json" },

    body: JSON.stringify({ user: auth.username, passwd: auth.password }),

  })

  if (!login.ok) {

    throw new Error(`login: ${login.status} ${await login.text()}`)

  }

  const session = (await login.json()) as { Status?: string; sid?: string }

  if (session.Status !== "Success" || !session.sid) {

    throw new Error(`login: ${JSON.stringify(session)}`)

  }

  // iap_ip_addr must be the IPv4 address of the AP to query; default to the conductor

  // Built by hand so spaces in cmd are sent as %20, not "+"

  const ip = iap_ip_addr || new URL(base).hostname

  const url =

    `${base}/rest/show-cmd?iap_ip_addr=${encodeURIComponent(ip)}` +

    `&cmd=${encodeURIComponent(cmd)}&sid=${encodeURIComponent(session.sid)}`

  try {

    const response = await fetch(url, {

      headers: { Accept: "application/json" },

    })

    if (!response.ok) {

      throw new Error(`${response.status} ${await response.text()}`)

    }

    const result = (await response.json()) as { [key: string]: any }

    return { ...result, output: result["Command output"] }

  } finally {

    // Best-effort logout so sessions don't pile up until the inactivity timeout

    // (instantpy: POST /rest/logout with sid); failures are ignored

    await fetch(`${base}/rest/logout?sid=${encodeURIComponent(session.sid)}`, {

      method: "POST",

      headers: { "Content-Type": "application/json" },

      body: JSON.stringify({ sid: session.sid }),

    }).catch(() => {})

  }

}