gristlabs_grist-core/app/common/gristUrls.ts

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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 {StringUnion} from 'app/common/StringUnion';
import {Document} from 'app/common/UserAPI';
import clone = require('lodash/clone');
import pickBy = require('lodash/pickBy');
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<string, string>; // 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
* <org-base>/
* <org-base>/ws/<ws>/
* <org-base>/doc/<doc>[/p/<docPage>]
*
* where <org-base> depends on whether subdomains are in use, e.g.
* <org>.getgrist.com
* localhost:8080/o/<org>
*/
export function encodeUrl(gristConfig: Partial<GristLoadConfig>,
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<keyof HashLink>) {
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<GristLoadConfig>, location: Location | URL): IGristUrlState {
const parts = location.pathname.slice(1).split('/');
const map = new Map<string, string>();
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 "<urlId>/slug" instead of "doc/<urlId>". 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<string, string>();
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<keyof HashLink>) {
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 = clone(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=<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);
}