Jon Staab
40 lines
1.2 KiB
TypeScript
40 lines
1.2 KiB
TypeScript
import {normalizeUrl, stripProtocol} from '@welshman/lib'
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export const isShareableRelayUrl = (url: string) =>
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Boolean(
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typeof url === 'string' &&
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// Is it actually a websocket url and has a dot
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url.match(/^wss:\/\/.+\..+/) &&
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// Sometimes bugs cause multiple relays to get concatenated
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url.match(/:\/\//g)?.length === 1 &&
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// It shouldn't have any whitespace, url-encoded or otherwise
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!url.match(/\s|%/) &&
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// Don't match stuff with a port number
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!url.slice(6).match(/:\d+/) &&
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// Don't match raw ip addresses
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!url.slice(6).match(/\d+\.\d+\.\d+\.\d+/) &&
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// Skip nostr.wine's virtual relays
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!url.slice(6).match(/\/npub/)
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)
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type NormalizeRelayUrlOpts = {
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allowInsecure?: boolean
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}
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export const normalizeRelayUrl = (url: string, {allowInsecure = false}: NormalizeRelayUrlOpts = {}) => {
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const prefix = allowInsecure ? url.match(/^wss?:\/\//)?.[0] || "wss://" : "wss://"
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// Use our library to normalize
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url = normalizeUrl(url, {stripHash: true, stripAuthentication: false})
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// Strip the protocol since only wss works, lowercase
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url = stripProtocol(url).toLowerCase()
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// Urls without pathnames are supposed to have a trailing slash
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if (!url.includes("/")) {
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url += "/"
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}
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return prefix + url
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}
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