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export function isAbsoluteUrl(url) {
return url.match(/^(?:[a-z]+:)?\/\//i) // Matches http://, HTTP://, https://, ftp://, //example.com,
}
export function addProtocol(url) {
if (!url.match(/^\/\//i)) return url // Checks if protocol is missing e.g. //example.com
return `${window.location.protocol}${url}`
}
export function buildBaseUrl(selectedServer, specUrl) {
if (!selectedServer) return specUrl
if (isAbsoluteUrl(selectedServer)) return addProtocol(selectedServer)
return new URL(selectedServer, specUrl).href
}
export function buildUrl(url, specUrl, { selectedServer="" } = {}) {
if (!url) return undefined
if (isAbsoluteUrl(url)) return url
const baseUrl = buildBaseUrl(selectedServer, specUrl)
if (!isAbsoluteUrl(baseUrl)) {
return new URL(url, window.location.href).href
}
return new URL(url, baseUrl).href
}
/**
* Safe version of buildUrl function. `selectedServer` can contain server variables
* which can fail the URL resolution.
*/
export function safeBuildUrl(url, specUrl, { selectedServer="" } = {}) {
try {
return buildUrl(url, specUrl, { selectedServer })
} catch {
return undefined
}
}
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