blob: b17a233d43864fafa99743b5623664dd5add8ced (
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'use strict'
const LRU = require('lru-cache')
const WARNING_REGEXP = /^\s*(\d{3})\s+(\S+)\s+"(.*)"\s+"([^"]+)"/
const BAD_HOSTS = new LRU({ max: 50 })
module.exports = checkWarnings
function checkWarnings (res, registry, opts) {
if (res.headers.has('warning') && !BAD_HOSTS.has(registry)) {
const warnings = {}
res.headers.raw()['warning'].forEach(w => {
const match = w.match(WARNING_REGEXP)
if (match) {
warnings[match[1]] = {
code: match[1],
host: match[2],
message: match[3],
date: new Date(match[4])
}
}
})
BAD_HOSTS.set(registry, true)
if (warnings['199']) {
if (warnings['199'].message.match(/ENOTFOUND/)) {
opts.log.warn('registry', `Using stale data from ${registry} because the host is inaccessible -- are you offline?`)
} else {
opts.log.warn('registry', `Unexpected warning for ${registry}: ${warnings['199'].message}`)
}
}
if (warnings['111']) {
// 111 Revalidation failed -- we're using stale data
opts.log.warn(
'registry',
`Using stale package data from ${registry} due to a request error during revalidation.`
)
}
}
}
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