xref: /expo/packages/expo-linking/build/createURL.js.map (revision cf6af4e9)

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Constants from 'expo-constants';\nimport qs from 'qs';\nimport URL from 'url-parse';\n\nimport { CreateURLOptions, ParsedURL } from './Linking.types';\nimport { hasCustomScheme, resolveScheme } from './Schemes';\nimport { validateURL } from './validateURL';\n\nfunction getHostUri(): string | null {\n  if (Constants.expoConfig?.hostUri) {\n    return Constants.expoConfig.hostUri;\n  } else if (!hasCustomScheme()) {\n    // we're probably not using up-to-date xdl, so just fake it for now\n    // we have to remove the /--/ on the end since this will be inserted again later\n    return removeScheme(Constants.linkingUri).replace(/\\/--($|\\/.*$)/, '');\n  } else {\n    return null;\n  }\n}\n\nfunction isExpoHosted(): boolean {\n  const hostUri = getHostUri();\n  return !!(\n    hostUri &&\n    (/^(.*\\.)?(expo\\.io|exp\\.host|exp\\.direct|expo\\.test|expo\\.dev)(:.*)?(\\/.*)?$/.test(hostUri) ||\n      Constants.expoGoConfig?.developer)\n  );\n}\n\nfunction removeScheme(url: string): string {\n  return url.replace(/^[a-zA-Z0-9+.-]+:\\/\\//, '');\n}\n\nfunction removePort(url: string): string {\n  return url.replace(/(?=([a-zA-Z0-9+.-]+:\\/\\/)?[^/]):\\d+/, '');\n}\n\nfunction removeLeadingSlash(url: string): string {\n  return url.replace(/^\\//, '');\n}\n\nfunction removeTrailingSlashAndQueryString(url: string): string {\n  return url.replace(/\\/?\\?.*$/, '');\n}\n\nfunction ensureLeadingSlash(input: string, shouldAppend: boolean): string {\n  const hasSlash = input.startsWith('/');\n  if (hasSlash && !shouldAppend) {\n    return input.substring(1);\n  } else if (!hasSlash && shouldAppend) {\n    return `/${input}`;\n  }\n  return input;\n}\n\n// @needsAudit\n/**\n * Helper method for constructing a deep link into your app, given an optional path and set of query\n * parameters. Creates a URI scheme with two slashes by default.\n *\n * The scheme in bare and standalone must be defined in the Expo config (`app.config.js` or `app.json`)\n * under `expo.scheme`.\n *\n * # Examples\n * - Bare: `<scheme>://path` - uses provided scheme or scheme from Expo config `scheme`.\n * - Standalone, Custom: `yourscheme://path`\n * - Web (dev): `https://localhost:19006/path`\n * - Web (prod): `https://myapp.com/path`\n * - Expo Client (dev): `exp://128.0.0.1:8081/--/path`\n * - Expo Client (prod): `exp://exp.host/@yourname/your-app/--/path`\n *\n * @param path Addition path components to append to the base URL.\n * @param namedParameters Additional options object.\n * @return A URL string which points to your app with the given deep link information.\n */\nexport function createURL(\n  path: string,\n  { scheme, queryParams = {}, isTripleSlashed = false }: CreateURLOptions = {}\n): string {\n  const resolvedScheme = resolveScheme({ scheme });\n\n  let hostUri = getHostUri() || '';\n\n  if (hasCustomScheme() && isExpoHosted()) {\n    hostUri = '';\n  }\n\n  if (path) {\n    if (isExpoHosted() && hostUri) {\n      path = `/--/${removeLeadingSlash(path)}`;\n    }\n    if (isTripleSlashed && !path.startsWith('/')) {\n      path = `/${path}`;\n    }\n  } else {\n    path = '';\n  }\n\n  // merge user-provided query params with any that were already in the hostUri\n  // e.g. release-channel\n  let queryString = '';\n  const queryStringMatchResult = hostUri.match(/(.*)\\?(.+)/);\n  if (queryStringMatchResult) {\n    hostUri = queryStringMatchResult[1];\n    queryString = queryStringMatchResult[2];\n    let paramsFromHostUri = {};\n    try {\n      const parsedParams = qs.parse(queryString);\n      if (typeof parsedParams === 'object') {\n        paramsFromHostUri = parsedParams;\n      }\n    } catch {}\n    queryParams = {\n      ...queryParams,\n      ...paramsFromHostUri,\n    };\n  }\n  queryString = qs.stringify(queryParams);\n  if (queryString) {\n    queryString = `?${queryString}`;\n  }\n\n  hostUri = ensureLeadingSlash(hostUri, !isTripleSlashed);\n\n  return encodeURI(\n    `${resolvedScheme}:${isTripleSlashed ? '/' : ''}/${hostUri}${path}${queryString}`\n  );\n}\n\n// @needsAudit\n/**\n * Helper method for parsing out deep link information from a URL.\n * @param url A URL that points to the currently running experience (e.g. an output of `Linking.createURL()`).\n * @return A `ParsedURL` object.\n */\nexport function parse(url: string): ParsedURL {\n  validateURL(url);\n\n  const parsed = URL(url, /* parseQueryString */ true);\n\n  for (const param in parsed.query) {\n    parsed.query[param] = decodeURIComponent(parsed.query[param]!);\n  }\n  const queryParams = parsed.query;\n\n  const hostUri = getHostUri() || '';\n  const hostUriStripped = removePort(removeTrailingSlashAndQueryString(hostUri));\n\n  let path = parsed.pathname || null;\n  let hostname = parsed.hostname || null;\n  let scheme = parsed.protocol || null;\n\n  if (scheme) {\n    // Remove colon at end\n    scheme = scheme.substring(0, scheme.length - 1);\n  }\n\n  if (path) {\n    path = removeLeadingSlash(path);\n\n    let expoPrefix: string | null = null;\n    if (hostUriStripped) {\n      const parts = hostUriStripped.split('/');\n      expoPrefix = parts.slice(1).concat(['--/']).join('/');\n    }\n\n    if (isExpoHosted() && !hasCustomScheme() && expoPrefix && path.startsWith(expoPrefix)) {\n      path = path.substring(expoPrefix.length);\n      hostname = null;\n    } else if (path.indexOf('+') > -1) {\n      path = path.substring(path.indexOf('+') + 1);\n    }\n  }\n\n  return {\n    hostname,\n    path,\n    queryParams,\n    scheme,\n  };\n}\n"]}