29 lines
998 B
TypeScript
29 lines
998 B
TypeScript
import { getLocationOrigin } from '../../utils'
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import { searchParamsToUrlQuery } from './querystring'
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/**
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* Parses path-relative urls (e.g. `/hello/world?foo=bar`). If url isn't path-relative
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* (e.g. `./hello`) then at least base must be.
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* Absolute urls are rejected with one exception, in the browser, absolute urls that are on
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* the current origin will be parsed as relative
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*/
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export function parseRelativeUrl(url: string, base?: string) {
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const globalBase = new URL(
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typeof window === 'undefined' ? 'http://n' : getLocationOrigin()
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)
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const resolvedBase = base ? new URL(base, globalBase) : globalBase
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const { pathname, searchParams, search, hash, href, origin } = new URL(
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url,
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resolvedBase
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)
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if (origin !== globalBase.origin) {
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throw new Error(`invariant: invalid relative URL, router received ${url}`)
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}
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return {
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pathname,
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query: searchParamsToUrlQuery(searchParams),
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search,
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hash,
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href: href.slice(globalBase.origin.length),
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}
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}
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