(core) Tweak navbar, breadcrumbs, and sign-in buttons

Summary:
The changes are intended to smooth over some sharp edges when a signed-out user
is using Grist (particularly while on the templates site).

Test Plan: Browser tests.

Reviewers: paulfitz

Reviewed By: paulfitz

Differential Revision: https://phab.getgrist.com/D3957

app/server/lib/ActiveDoc.ts

@@ -79,7 +79,6 @@ import {Document as APIDocument, DocReplacementOptions, DocState, DocStateCompar
 import {convertFromColumn} from 'app/common/ValueConverter';
 import {guessColInfo} from 'app/common/ValueGuesser';
 import {parseUserAction} from 'app/common/ValueParser';
-import {TEMPLATES_ORG_DOMAIN} from 'app/gen-server/ApiServer';
 import {Document} from 'app/gen-server/entity/Document';
 import {ParseFileResult, ParseOptions} from 'app/plugin/FileParserAPI';
 import {AccessTokenOptions, AccessTokenResult, GristDocAPI} from 'app/plugin/GristAPI';
@@ -98,6 +97,7 @@ import log from 'app/server/lib/log';
 import {LogMethods} from "app/server/lib/LogMethods";
 import {NullSandbox, UnavailableSandboxMethodError} from 'app/server/lib/NullSandbox';
 import {DocRequests} from 'app/server/lib/Requests';
+import {getTemplateOrg} from 'app/server/lib/sendAppPage';
 import {shortDesc} from 'app/server/lib/shortDesc';
 import {TableMetadataLoader} from 'app/server/lib/TableMetadataLoader';
 import {DocTriggers} from "app/server/lib/Triggers";
@@ -1402,8 +1402,9 @@ export class ActiveDoc extends EventEmitter {
 
       await dbManager.forkDoc(userId, doc, forkIds.forkId);
 
-      // TODO: Need a more precise way to identify a template. (This org now also has tutorials.)
-      const isTemplate = TEMPLATES_ORG_DOMAIN === doc.workspace.org.domain && doc.type !== 'tutorial';
+      // TODO: Remove the right side once all template docs have their type set to "template".
+      const isTemplate = doc.type === 'template' ||
+        (doc.workspace.org.domain === getTemplateOrg() && doc.type !== 'tutorial');
       this.logTelemetryEvent(docSession, 'documentForked', {
         limited: {
           forkIdDigest: forkIds.forkId,

app/server/lib/AppEndpoint.ts

@@ -12,7 +12,6 @@ import {removeTrailingSlash} from 'app/common/gutil';
 import {LocalPlugin} from "app/common/plugin";
 import {TELEMETRY_TEMPLATE_SIGNUP_COOKIE_NAME} from 'app/common/Telemetry';
 import {Document as APIDocument} from 'app/common/UserAPI';
-import {TEMPLATES_ORG_DOMAIN} from 'app/gen-server/ApiServer';
 import {Document} from "app/gen-server/entity/Document";
 import {HomeDBManager} from 'app/gen-server/lib/HomeDBManager';
 import {assertAccess, getTransitiveHeaders, getUserId, isAnonymousUser,
@@ -24,7 +23,7 @@ import {getCookieDomain} from 'app/server/lib/gristSessions';
 import {getAssignmentId} from 'app/server/lib/idUtils';
 import log from 'app/server/lib/log';
 import {adaptServerUrl, addOrgToPathIfNeeded, pruneAPIResult, trustOrigin} from 'app/server/lib/requestUtils';
-import {ISendAppPageOptions} from 'app/server/lib/sendAppPage';
+import {getTemplateOrg, ISendAppPageOptions} from 'app/server/lib/sendAppPage';
 
 export interface AttachOptions {
   app: express.Application;                // Express app to which to add endpoints
@@ -304,8 +303,9 @@ export function attachAppEndpoint(options: AttachOptions): void {
 
     const isPublic = ((doc as unknown) as APIDocument).public ?? false;
     const isSnapshot = Boolean(parseUrlId(urlId).snapshotId);
-    // TODO: Need a more precise way to identify a template. (This org now also has tutorials.)
-    const isTemplate = TEMPLATES_ORG_DOMAIN === doc.workspace.org.domain && doc.type !== 'tutorial';
+    // TODO: Remove the right side once all template docs have their type set to "template".
+    const isTemplate = doc.type === 'template' ||
+      (doc.workspace.org.domain === getTemplateOrg() && doc.type !== 'tutorial');
     if (isPublic || isTemplate) {
       gristServer.getTelemetry().logEvent('documentOpened', {
         limited: {

app/server/lib/sendAppPage.ts

@@ -3,6 +3,7 @@ import {isAffirmative} from 'app/common/gutil';
 import {getTagManagerSnippet} from 'app/common/tagManager';
 import {Document} from 'app/common/UserAPI';
 import {SUPPORT_EMAIL} from 'app/gen-server/lib/HomeDBManager';
+import {appSettings} from 'app/server/lib/AppSettings';
 import {isAnonymousUser, isSingleUserMode, RequestWithLogin} from 'app/server/lib/Authorizer';
 import {RequestWithOrg} from 'app/server/lib/extractOrg';
 import {GristServer} from 'app/server/lib/GristServer';
@@ -78,6 +79,7 @@ export function makeGristConfig(options: MakeGristConfigOptons): GristLoadConfig
     userLocale: (req as RequestWithLogin | undefined)?.user?.options?.locale,
     telemetry: server?.getTelemetry().getTelemetryConfig(),
     deploymentType: server?.getDeploymentType(),
+    templateOrg: getTemplateOrg(),
     ...extra,
   };
 }
@@ -152,6 +154,18 @@ export function makeSendAppPage(opts: {
   };
 }
 
+export function getTemplateOrg() {
+  let org = appSettings.section('templates').flag('org').readString({
+    envVar: 'GRIST_TEMPLATE_ORG',
+  });
+  if (!org) { return null; }
+
+  if (process.env.GRIST_ID_PREFIX) {
+    org += `-${process.env.GRIST_ID_PREFIX}`;
+  }
+  return org;
+}
+
 function shouldSupportAnon() {
   // Enable UI for anonymous access if a flag is explicitly set in the environment
   return process.env.GRIST_SUPPORT_ANON === "true";