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const dns = require('dns')
const conditionalHeaders = [
'if-modified-since',
'if-none-match',
'if-unmodified-since',
'if-match',
'if-range',
]
const configureOptions = (opts) => {
const { strictSSL, ...options } = { ...opts }
options.method = options.method ? options.method.toUpperCase() : 'GET'
options.rejectUnauthorized = strictSSL !== false
if (!options.retry) {
options.retry = { retries: 0 }
} else if (typeof options.retry === 'string') {
const retries = parseInt(options.retry, 10)
if (isFinite(retries)) {
options.retry = { retries }
} else {
options.retry = { retries: 0 }
}
} else if (typeof options.retry === 'number') {
options.retry = { retries: options.retry }
} else {
options.retry = { retries: 0, ...options.retry }
}
options.dns = { ttl: 5 * 60 * 1000, lookup: dns.lookup, ...options.dns }
options.cache = options.cache || 'default'
if (options.cache === 'default') {
const hasConditionalHeader = Object.keys(options.headers || {}).some((name) => {
return conditionalHeaders.includes(name.toLowerCase())
})
if (hasConditionalHeader) {
options.cache = 'no-store'
}
}
options.cacheAdditionalHeaders = options.cacheAdditionalHeaders || []
// cacheManager is deprecated, but if it's set and
// cachePath is not we should copy it to the new field
if (options.cacheManager && !options.cachePath) {
options.cachePath = options.cacheManager
}
return options
}
module.exports = configureOptions
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