import {BillingPage, BillingSubPage, BillingTask} from 'app/common/BillingAPI'; import {OpenDocMode} from 'app/common/DocListAPI'; import {encodeQueryParams, isAffirmative} from 'app/common/gutil'; import {localhostRegex} from 'app/common/LoginState'; import {Document} from 'app/common/UserAPI'; import pickBy = require('lodash/pickBy'); import {StringUnion} from './StringUnion'; export type IDocPage = number | 'new' | 'code' | 'acl'; // What page to show in the user's home area. Defaults to 'workspace' if a workspace is set, and // to 'all' otherwise. export const HomePage = StringUnion('all', 'workspace', 'trash'); export type IHomePage = typeof HomePage.type; export const WelcomePage = StringUnion('user', 'info', 'teams'); export type WelcomePage = typeof WelcomePage.type; // Overall UI style. "full" is normal, "light" is a single page focused, panels hidden experience. export const InterfaceStyle = StringUnion('light', 'full'); export type InterfaceStyle = typeof InterfaceStyle.type; // Default subdomain for home api service if not otherwise specified. export const DEFAULT_HOME_SUBDOMAIN = 'api'; // This is the minimum length a urlId may have if it is chosen // as a prefix of the docId. export const MIN_URLID_PREFIX_LENGTH = 12; /** * Special ways to open a document, based on what the user intends to do. * - view: Open document in read-only mode (even if user has edit rights) * - fork: Open document in fork-ready mode. This means that while edits are * permitted, those edits should go to a copy of the document rather than * the original. */ export const commonUrls = { help: "https://support.getgrist.com", plans: "https://www.getgrist.com/pricing", efcrConnect: 'https://efc-r.com/connect', efcrHelp: 'https://www.nioxus.info/eFCR-Help', }; /** * Values representable in a URL. The current state is available as urlState().state observable * in client. Updates to this state are expected by functions such as makeUrl() and setLinkUrl(). */ export interface IGristUrlState { org?: string; homePage?: IHomePage; ws?: number; doc?: string; slug?: string; // if present, this is based on the document title, and is not a stable id mode?: OpenDocMode; fork?: UrlIdParts; docPage?: IDocPage; newui?: boolean; billing?: BillingPage; welcome?: WelcomePage; params?: { billingPlan?: string; billingTask?: BillingTask; embed?: boolean; style?: InterfaceStyle; compare?: string; linkParameters?: Record; // Parameters to pass as 'user.Link' in granular ACLs. // Encoded in URL as query params with extra '_' suffix. }; hash?: HashLink; // if present, this specifies an individual row within a section of a page. } // Subset of GristLoadConfig used by getOrgUrlInfo(), which affects the interpretation of the // current URL. export interface OrgUrlOptions { // The org associated with the current URL. org?: string; // Base domain for constructing new URLs, should start with "." and not include port, e.g. // ".getgrist.com". It should be unset for localhost operation and in single-org mode. baseDomain?: string; // In single-org mode, this is the single well-known org. singleOrg?: string; // Base URL used for accessing plugin material. pluginUrl?: string; } // Result of getOrgUrlInfo(). export interface OrgUrlInfo { hostname?: string; // If hostname should be changed to access the requested org. orgInPath?: string; // If /o/{orgInPath} should be used to access the requested org. } /** * Given host name, baseDomain, and pluginUrl, determine whether to interpret host * as a custom domain, a native domain, or a plugin domain. */ export function getHostType(hostname: string, options: { baseDomain?: string, pluginUrl?: string }): 'native' | 'custom' | 'plugin' { if (options.pluginUrl && hostname.toLowerCase() === new URL(options.pluginUrl).hostname.toLowerCase()) { return 'plugin'; } if (!options.baseDomain) { return 'native'; } if (hostname !== 'localhost' && !hostname.endsWith(options.baseDomain)) { return 'custom'; } return 'native'; } export function getOrgUrlInfo(newOrg: string, currentHostname: string, options: OrgUrlOptions): OrgUrlInfo { if (newOrg === options.singleOrg) { return {}; } if (!options.baseDomain || currentHostname === 'localhost') { return {orgInPath: newOrg}; } if (newOrg === options.org && getHostType(currentHostname, options) !== 'native') { return {}; } return {hostname: newOrg + options.baseDomain}; } /** * The actual serialization of a url state into a URL. The URL has the form * / * /ws// * /doc/[/p/] * * where depends on whether subdomains are in use, e.g. * .getgrist.com * localhost:8080/o/ */ export function encodeUrl(gristConfig: Partial, state: IGristUrlState, baseLocation: Location | URL): string { const url = new URL(baseLocation.href); const parts = ['/']; if (state.org) { // We figure out where to stick the org using the gristConfig and the current host. const {hostname, orgInPath} = getOrgUrlInfo(state.org, baseLocation.hostname, gristConfig); if (hostname) { url.hostname = hostname; } if (orgInPath) { parts.push(`o/${orgInPath}/`); } } if (state.ws) { parts.push(`ws/${state.ws}/`); } if (state.doc) { if (state.slug) { parts.push(`${encodeURIComponent(state.doc)}/${encodeURIComponent(state.slug)}`); } else { parts.push(`doc/${encodeURIComponent(state.doc)}`); } if (state.mode && OpenDocMode.guard(state.mode)) { parts.push(`/m/${state.mode}`); } if (state.docPage) { parts.push(`/p/${state.docPage}`); } } else { if (state.homePage === 'trash') { parts.push('p/trash'); } } if (state.billing) { parts.push(state.billing === 'billing' ? 'billing' : `billing/${state.billing}`); } if (state.welcome) { parts.push(`welcome/${state.welcome}`); } const queryParams = pickBy(state.params, (v, k) => k !== 'linkParameters') as {[key: string]: string}; if (state.newui !== undefined) { queryParams.newui = state.newui ? '1' : '0'; } for (const [k, v] of Object.entries(state.params?.linkParameters || {})) { queryParams[`${k}_`] = v; } const hashParts: string[] = []; if (state.hash && state.hash.rowId) { const hash = state.hash; hashParts.push(`a1`); for (const key of ['sectionId', 'rowId', 'colRef'] as Array) { if (hash[key]) { hashParts.push(`${key[0]}${hash[key]}`); } } } const queryStr = encodeQueryParams(queryParams); url.pathname = parts.join(''); url.search = queryStr; if (state.hash) { // Project tests use hashes, so only set hash if there is an anchor. url.hash = hashParts.join('.'); } return url.href; } /** * Parse a URL location into an IGristUrlState object. See encodeUrl() documentation. */ export function decodeUrl(gristConfig: Partial, location: Location | URL): IGristUrlState { const parts = location.pathname.slice(1).split('/'); const map = new Map(); for (let i = 0; i < parts.length; i += 2) { map.set(parts[i], decodeURIComponent(parts[i + 1])); } // When the urlId is a prefix of the docId, documents are identified // as "/slug" instead of "doc/". We can detect that because // the minimum length of a urlId prefix is longer than the maximum length // of any of the valid keys in the url. for (const key of map.keys()) { if (key.length >= MIN_URLID_PREFIX_LENGTH) { map.set('doc', key); map.set('slug', map.get(key)!); map.delete(key); break; } } const state: IGristUrlState = {}; const subdomain = parseSubdomain(location.host); if (gristConfig.org || gristConfig.singleOrg) { state.org = gristConfig.org || gristConfig.singleOrg; } else if (!gristConfig.pathOnly && subdomain.org) { state.org = subdomain.org; } const sp = new URLSearchParams(location.search); if (location.search) { state.params = {}; } if (map.has('o')) { state.org = map.get('o'); } if (map.has('ws')) { state.ws = parseInt(map.get('ws')!, 10); } if (map.has('doc')) { state.doc = map.get('doc'); const fork = parseUrlId(map.get('doc')!); if (fork.forkId) { state.fork = fork; } if (map.has('slug')) { state.slug = map.get('slug'); } if (map.has('p')) { state.docPage = parseDocPage(map.get('p')!); } } else { if (map.has('p')) { const p = map.get('p')!; state.homePage = HomePage.parse(p); } } if (map.has('m')) { state.mode = OpenDocMode.parse(map.get('m')); } if (sp.has('newui')) { state.newui = useNewUI(sp.get('newui') ? sp.get('newui') === '1' : undefined); } if (map.has('billing')) { state.billing = BillingSubPage.parse(map.get('billing')) || 'billing'; } if (map.has('welcome')) { state.welcome = WelcomePage.parse(map.get('welcome')) || 'user'; } if (sp.has('billingPlan')) { state.params!.billingPlan = sp.get('billingPlan')!; } if (sp.has('billingTask')) { state.params!.billingTask = BillingTask.parse(sp.get('billingTask')); } if (sp.has('style')) { state.params!.style = InterfaceStyle.parse(sp.get('style')); } if (sp.has('embed')) { const embed = state.params!.embed = isAffirmative(sp.get('embed')); // Turn view mode on if no mode has been specified, and not a fork. if (embed && !state.mode && !state.fork) { state.mode = 'view'; } // Turn on light style if no style has been specified. if (embed && !state.params!.style) { state.params!.style = 'light'; } } if (sp.has('compare')) { state.params!.compare = sp.get('compare')!; } for (const [k, v] of sp.entries()) { if (k.endsWith('_')) { if (!state.params!.linkParameters) { state.params!.linkParameters = {}; } state.params!.linkParameters[k.slice(0, k.length - 1)] = v; } } if (location.hash) { const hash = location.hash; const hashParts = hash.split('.'); const hashMap = new Map(); for (const part of hashParts) { hashMap.set(part.slice(0, 1), part.slice(1)); } if (hashMap.has('#') && hashMap.get('#') === 'a1') { const link: HashLink = {}; for (const key of ['sectionId', 'rowId', 'colRef'] as Array) { const ch = key.substr(0, 1); if (hashMap.has(ch)) { link[key] = parseInt(hashMap.get(ch)!, 10); } } state.hash = link; } } return state; } export function useNewUI(newui: boolean|undefined) { return newui !== false; } // Returns a function suitable for user with makeUrl/setHref/etc, which updates aclAsUser* // linkParameters in the current state, unsetting them if email is null. Optional extraState // allows setting other properties (e.g. 'docPage') at the same time. export function userOverrideParams(email: string|null, extraState?: IGristUrlState) { return function(prevState: IGristUrlState): IGristUrlState { const combined = {...prevState, ...extraState}; const linkParameters = combined.params?.linkParameters || {}; if (email) { linkParameters.aclAsUser = email; } else { delete linkParameters.aclAsUser; } delete linkParameters.aclAsUserId; return {...combined, params: {...combined.params, linkParameters}}; }; } /** * parseDocPage is a noop if p is 'new' or 'code', otherwise parse to integer */ function parseDocPage(p: string) { if (['new', 'code', 'acl'].includes(p)) { return p as 'new'|'code'|'acl'; } return parseInt(p, 10); } /** * Parses the URL like "foo.bar.baz" into the pair {org: "foo", base: ".bar.baz"}. * Port is allowed and included into base. * * The "base" part is required to have at least two periods. The "org" part must pass * the subdomainRegex test. * * If there's no way to parse the URL into such a pair, then an empty object is returned. */ export function parseSubdomain(host: string|undefined): {org?: string, base?: string} { if (!host) { return {}; } const match = /^([^.]+)(\..+\..+)$/.exec(host.toLowerCase()); if (match) { const org = match[1]; const base = match[2]; if (subdomainRegex.exec(org)) { return {org, base}; } } // Host has nowhere to put a subdomain. return {}; } /** * Like parseSubdomain, but throws an error if neither of these cases apply: * - host can be parsed into a valid subdomain and a valid base domain. * - host is localhost:NNNN * An empty object is only returned when host is localhost:NNNN. */ export function parseSubdomainStrictly(host: string|undefined): {org?: string, base?: string} { if (!host) { throw new Error('host not known'); } const result = parseSubdomain(host); if (result.org) { return result; } if (!host.match(localhostRegex)) { throw new Error(`host not understood: ${host}`); } // Host is localhost[:NNNN], no org available. return {}; } /** * These settings get sent to the client along with the loaded page. At the minimum, the browser * needs to know the URL of the home API server (e.g. api.getgrist.com). */ export interface GristLoadConfig { // URL of the Home API server for the browser client to use. homeUrl: string|null; // When loading /doc/{docId}, we include the id used to assign the document (this is the docId). assignmentId?: string; // Org or "subdomain". When present, this overrides org information from the hostname. We rely // on this for custom domains, but set it generally for all pages. org?: string; // Base domain for constructing new URLs, should start with "." and not include port, e.g. // ".getgrist.com". It should be unset for localhost operation and in single-org mode. baseDomain?: string; // In single-org mode, this is the single well-known org. Suppress any org selection UI. singleOrg?: string; // When set, this directs the client to encode org information in path, not in domain. pathOnly?: boolean; // Type of error page to show. This is used for pages such as "signed-out" and "not-found", // which don't include the full app. errPage?: string; // When errPage is a generic "other-error", this is the message to show. errMessage?: string; // URL for client to use for untrusted content. pluginUrl?: string; // Stripe API key for use on the client. stripeAPIKey?: string; // BeaconID for the support widget from HelpScout. helpScoutBeaconId?: string; // If set, enable anonymous sharing UI elements. supportAnon?: boolean; // Max upload allowed for imports (except .grist files), in bytes; 0 or omitted for unlimited. maxUploadSizeImport?: number; // Max upload allowed for attachments, in bytes; 0 or omitted for unlimited. maxUploadSizeAttachment?: number; // Pre-fetched call to getDoc for the doc being loaded. getDoc?: {[id: string]: Document}; // Pre-fetched call to getWorker for the doc being loaded. getWorker?: {[id: string]: string}; // The timestamp when this gristConfig was generated. timestampMs: number; } // Acceptable org subdomains are alphanumeric (hyphen also allowed) and of // non-zero length. const subdomainRegex = /^[-a-z0-9]+$/i; export interface OrgParts { subdomain: string|null; orgFromHost: string|null; orgFromPath: string|null; pathRemainder: string; mismatch: boolean; } /** * Returns true if code is running in client, false if running in server. */ export function isClient() { return (typeof window !== 'undefined') && window && window.location && window.location.hostname; } /** * Returns a known org "subdomain" if Grist is configured in single-org mode * (GRIST_SINGLE_ORG= on the server) or if the page includes an org in gristConfig. */ export function getKnownOrg(): string|null { if (isClient()) { const gristConfig: GristLoadConfig = (window as any).gristConfig; return (gristConfig && gristConfig.org) || null; } else { return process.env.GRIST_SINGLE_ORG || null; } } /** * Returns true if org must be encoded in path, not in domain. Determined from * gristConfig on the client. On on the server returns true if the host is * supplied and is 'localhost', or if GRIST_ORG_IN_PATH is set to 'true'. */ export function isOrgInPathOnly(host?: string): boolean { if (isClient()) { const gristConfig: GristLoadConfig = (window as any).gristConfig; return (gristConfig && gristConfig.pathOnly) || false; } else { if (host && host.match(/^localhost(:[0-9]+)?$/)) { return true; } return (process.env.GRIST_ORG_IN_PATH === 'true'); } } // Extract an organization name from the host. Returns null if an organization name // could not be recovered. Organization name may be overridden by server configuration. export function getOrgFromHost(reqHost: string): string|null { const singleOrg = getKnownOrg(); if (singleOrg) { return singleOrg; } if (isOrgInPathOnly()) { return null; } return parseSubdomain(reqHost).org || null; } /** * Get any information about an organization that is embedded in the host name or the * path. * For example, on nasa.getgrist.com, orgFromHost and subdomain will be set to "nasa". * On localhost:8000/o/nasa, orgFromPath and subdomain will be set to "nasa". * On nasa.getgrist.com/o/nasa, orgFromHost, orgFromPath, and subdomain will all be "nasa". * On spam.getgrist.com/o/nasa, orgFromHost will be "spam", orgFromPath will be "nasa", * subdomain will be null, and mismatch will be true. */ export function extractOrgParts(reqHost: string|undefined, reqPath: string): OrgParts { let orgFromHost: string|null = getKnownOrg(); if (!orgFromHost && reqHost) { orgFromHost = getOrgFromHost(reqHost); if (orgFromHost) { // Some subdomains are shared, and do not reflect the name of an organization. // See https://phab.getgrist.com/w/hosting/v1/urls/ for a list. if (/^(api|v1-.*|doc-worker-.*)$/.test(orgFromHost)) { orgFromHost = null; } } } const part = parseFirstUrlPart('o', reqPath); if (part.value) { const orgFromPath = part.value.toLowerCase(); const mismatch = Boolean(orgFromHost && orgFromPath && (orgFromHost !== orgFromPath)); const subdomain = mismatch ? null : orgFromPath; return {orgFromHost, orgFromPath, pathRemainder: part.path, mismatch, subdomain}; } return {orgFromHost, orgFromPath: null, pathRemainder: reqPath, mismatch: false, subdomain: orgFromHost}; } /** * When a prefix is extracted from the path, the remainder of the path may be empty. * This method makes sure there is at least a "/". */ export function sanitizePathTail(path: string|undefined) { path = path || '/'; return (path.startsWith('/') ? '' : '/') + path; } /* * If path starts with /{tag}/{value}{/rest}, returns value and the remaining path (/rest). * Otherwise, returns value of undefined and the path unchanged. * E.g. parseFirstUrlPart('o', '/o/foo/bar') returns {value: 'foo', path: '/bar'}. */ export function parseFirstUrlPart(tag: string, path: string): {value?: string, path: string} { const match = path.match(/^\/([^/?#]+)\/([^/?#]+)(.*)$/); if (match && match[1] === tag) { return {value: match[2], path: sanitizePathTail(match[3])}; } else { return {path}; } } /** * The internal structure of a UrlId. There is no internal structure. unless the id is * for a fork, in which case the fork has a separate id, and a user id may also be * embedded to track ownership. */ export interface UrlIdParts { trunkId: string; forkId?: string; forkUserId?: number; snapshotId?: string; } // Parse a string of the form trunkId or trunkId~forkId or trunkId~forkId~forkUserId // or trunkId[....]~v=snapshotId export function parseUrlId(urlId: string): UrlIdParts { let snapshotId: string|undefined; const parts = urlId.split('~'); const bareParts = parts.filter(part => !part.includes('=')); for (const part of parts) { if (part.startsWith('v=')) { snapshotId = decodeURIComponent(part.substr(2).replace(/_/g, '%')); } } return { trunkId: bareParts[0], forkId: bareParts[1], forkUserId: (bareParts[2] !== undefined) ? parseInt(bareParts[2], 10) : undefined, snapshotId, }; } // Construct a string of the form trunkId or trunkId~forkId or trunkId~forkId~forkUserId // or trunkId[....]~v=snapshotId export function buildUrlId(parts: UrlIdParts): string { let token = [parts.trunkId, parts.forkId, parts.forkUserId].filter(x => x !== undefined).join('~'); if (parts.snapshotId) { // This could be an S3 VersionId, about which AWS makes few promises. // encodeURIComponent leaves untouched the following: // alphabetic; decimal; any of: - _ . ! ~ * ' ( ) // We further encode _.!~*'() to fit within existing limits on what characters // may be in a docId (leaving just the hyphen, which is permitted). The limits // could be loosened, but without much benefit. const codedSnapshotId = encodeURIComponent(parts.snapshotId) .replace(/[_.!~*'()]/g, ch => `_${ch.charCodeAt(0).toString(16).toUpperCase()}`) .replace(/%/g, '_'); token = `${token}~v=${codedSnapshotId}`; } return token; } /** * Values that may be encoded in a hash in a document url. */ export interface HashLink { sectionId?: number; rowId?: number; colRef?: number; } // Check whether a urlId is a prefix of the docId, and adequately long to be // a candidate for use in prettier urls. function shouldIncludeSlug(doc: {id: string, urlId: string|null}): boolean { if (!doc.urlId || doc.urlId.length < MIN_URLID_PREFIX_LENGTH) { return false; } return doc.id.startsWith(doc.urlId); } // Convert the name of a document into a slug. Only alphanumerics are retained, // and spaces are replaced with hyphens. // TODO: investigate whether there's a better option with unicode than just // deleting it, seems unfair to languages using anything other than unaccented // Latin characters. function nameToSlug(name: string): string { return name.trim().replace(/ /g, '-').replace(/[^-a-zA-Z0-9]/g, '').replace(/---*/g, '-'); } // Returns a slug for the given docId/urlId/name, or undefined if a slug should // not be used. export function getSlugIfNeeded(doc: {id: string, urlId: string|null, name: string}): string|undefined { if (!shouldIncludeSlug(doc)) { return; } return nameToSlug(doc.name); }