{"version":3,"file":"UrlString.js","sources":["../../src/url/UrlString.ts"],"sourcesContent":["/*\n * Copyright (c) Microsoft Corporation. All rights reserved.\n * Licensed under the MIT License.\n */\n\nimport { ServerAuthorizationCodeResponse } from \"../response/ServerAuthorizationCodeResponse\";\nimport { ClientConfigurationError } from \"../error/ClientConfigurationError\";\nimport { ClientAuthError } from \"../error/ClientAuthError\";\nimport { StringUtils } from \"../utils/StringUtils\";\nimport { IUri } from \"./IUri\";\nimport { AADAuthorityConstants, Constants } from \"../utils/Constants\";\n\n/**\n * Url object class which can perform various transformations on url strings.\n */\nexport class UrlString {\n\n // internal url string field\n private _urlString: string;\n public get urlString(): string {\n return this._urlString;\n }\n\n constructor(url: string) {\n this._urlString = url;\n if (StringUtils.isEmpty(this._urlString)) {\n // Throws error if url is empty\n throw ClientConfigurationError.createUrlEmptyError();\n }\n\n if (StringUtils.isEmpty(this.getHash())) {\n this._urlString = UrlString.canonicalizeUri(url);\n }\n }\n\n /**\n * Ensure urls are lower case and end with a / character.\n * @param url\n */\n static canonicalizeUri(url: string): string {\n if (url) {\n let lowerCaseUrl = url.toLowerCase();\n\n if (StringUtils.endsWith(lowerCaseUrl, \"?\")) {\n lowerCaseUrl = lowerCaseUrl.slice(0, -1);\n } else if (StringUtils.endsWith(lowerCaseUrl, \"?/\")) {\n lowerCaseUrl = lowerCaseUrl.slice(0, -2);\n }\n\n if (!StringUtils.endsWith(lowerCaseUrl, \"/\")) {\n lowerCaseUrl += \"/\";\n }\n\n return lowerCaseUrl;\n }\n\n return url;\n }\n\n /**\n * Throws if urlString passed is not a valid authority URI string.\n */\n validateAsUri(): void {\n // Attempts to parse url for uri components\n let components;\n try {\n components = this.getUrlComponents();\n } catch (e) {\n throw ClientConfigurationError.createUrlParseError(e);\n }\n\n // Throw error if URI or path segments are not parseable.\n if (!components.HostNameAndPort || !components.PathSegments) {\n throw ClientConfigurationError.createUrlParseError(`Given url string: ${this.urlString}`);\n }\n\n // Throw error if uri is insecure.\n if(!components.Protocol || components.Protocol.toLowerCase() !== \"https:\") {\n throw ClientConfigurationError.createInsecureAuthorityUriError(this.urlString);\n }\n }\n\n /**\n * Given a url and a query string return the url with provided query string appended\n * @param url\n * @param queryString\n */\n static appendQueryString(url: string, queryString: string): string {\n if (StringUtils.isEmpty(queryString)) {\n return url;\n }\n\n return url.indexOf(\"?\") < 0 ? `${url}?${queryString}` : `${url}&${queryString}`;\n }\n\n /**\n * Returns a url with the hash removed\n * @param url\n */\n static removeHashFromUrl(url: string): string {\n return UrlString.canonicalizeUri(url.split(\"#\")[0]);\n }\n\n /**\n * Given a url like https://a:b/common/d?e=f#g, and a tenantId, returns https://a:b/tenantId/d\n * @param href The url\n * @param tenantId The tenant id to replace\n */\n replaceTenantPath(tenantId: string): UrlString {\n const urlObject = this.getUrlComponents();\n const pathArray = urlObject.PathSegments;\n if (tenantId && (pathArray.length !== 0 && (pathArray[0] === AADAuthorityConstants.COMMON || pathArray[0] === AADAuthorityConstants.ORGANIZATIONS))) {\n pathArray[0] = tenantId;\n }\n return UrlString.constructAuthorityUriFromObject(urlObject);\n }\n\n /**\n * Returns the anchor part(#) of the URL\n */\n getHash(): string {\n return UrlString.parseHash(this.urlString);\n }\n\n /**\n * Parses out the components from a url string.\n * @returns An object with the various components. 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Returns empty string if no hash symbol is found.\n * @param hashString\n */\n static parseHash(hashString: string): string {\n const hashIndex1 = hashString.indexOf(\"#\");\n const hashIndex2 = hashString.indexOf(\"#/\");\n if (hashIndex2 > -1) {\n return hashString.substring(hashIndex2 + 2);\n } else if (hashIndex1 > -1) {\n return hashString.substring(hashIndex1 + 1);\n }\n return Constants.EMPTY_STRING;\n }\n\n /**\n * Parses query string from given string. Returns empty string if no query symbol is found.\n * @param queryString\n */\n static parseQueryString(queryString: string): string {\n const queryIndex1 = queryString.indexOf(\"?\");\n const queryIndex2 = queryString.indexOf(\"/?\");\n if (queryIndex2 > -1) {\n return queryString.substring(queryIndex2 + 2);\n } else if (queryIndex1 > -1) {\n return queryString.substring(queryIndex1 + 1);\n }\n return Constants.EMPTY_STRING;\n }\n\n static constructAuthorityUriFromObject(urlObject: IUri): UrlString {\n return new UrlString(urlObject.Protocol + \"//\" + urlObject.HostNameAndPort + \"/\" + urlObject.PathSegments.join(\"/\"));\n }\n\n /**\n * Returns URL hash as server auth code response object.\n */\n static getDeserializedHash(hash: string): ServerAuthorizationCodeResponse {\n // Check if given hash is empty\n if (StringUtils.isEmpty(hash)) {\n return {};\n }\n // Strip the # symbol if present\n const parsedHash = UrlString.parseHash(hash);\n // If # symbol was not present, above will return empty string, so give original hash value\n const deserializedHash: ServerAuthorizationCodeResponse = StringUtils.queryStringToObject(StringUtils.isEmpty(parsedHash) ? hash : parsedHash);\n // Check if deserialization didn't work\n if (!deserializedHash) {\n throw ClientAuthError.createHashNotDeserializedError(JSON.stringify(deserializedHash));\n }\n return deserializedHash;\n }\n\n /**\n * Returns URL query string as server auth code response object.\n */\n static getDeserializedQueryString(query: string): ServerAuthorizationCodeResponse {\n // Check if given query is empty\n if (StringUtils.isEmpty(query)) {\n return {};\n }\n // Strip the ? symbol if present\n const parsedQueryString = UrlString.parseQueryString(query);\n // If ? symbol was not present, above will return empty string, so give original query value\n const deserializedQueryString: ServerAuthorizationCodeResponse = StringUtils.queryStringToObject(StringUtils.isEmpty(parsedQueryString) ? query : parsedQueryString);\n // Check if deserialization didn't work\n if (!deserializedQueryString) {\n throw ClientAuthError.createHashNotDeserializedError(JSON.stringify(deserializedQueryString));\n }\n return deserializedQueryString;\n }\n\n /**\n * Check if the hash of the URL string contains known properties\n */\n static hashContainsKnownProperties(hash: string): boolean {\n if (StringUtils.isEmpty(hash) || hash.indexOf(\"=\") < 0) {\n // Hash doesn't contain key/value pairs\n return false;\n }\n\n const parameters: ServerAuthorizationCodeResponse = UrlString.getDeserializedHash(hash);\n return !!(\n parameters.code ||\n parameters.error_description ||\n parameters.error ||\n parameters.state\n );\n 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