@ -1,11 +1,14 @@
import { getPageTitleSuffix , GristLoadConfig , HideableUiElements , IHideableUiElement } from 'app/common/gristUrls' ;
import { getTagManagerSnippet } from 'app/common/tagManager' ;
import { Document } from 'app/common/UserAPI' ;
import { isAnonymousUser , RequestWithLogin } from 'app/server/lib/Authorizer' ;
import { RequestWithOrg } from 'app/server/lib/extractOrg' ;
import { GristServer } from 'app/server/lib/GristServer' ;
import { getSupportedEngineChoices } from 'app/server/lib/serverUtils' ;
import * as express from 'express' ;
import * as fse from 'fs-extra' ;
import jsesc from 'jsesc' ;
import * as handlebars from 'handlebars' ;
import * as path from 'path' ;
export interface ISendAppPageOptions {
@ -65,8 +68,10 @@ export function makeGristConfig(homeUrl: string|null, extra: Partial<GristLoadCo
export function makeMessagePage ( staticDir : string ) {
return async ( req : express.Request , resp : express.Response , message : any ) = > {
const fileContent = await fse . readFile ( path . join ( staticDir , "message.html" ) , 'utf8' ) ;
const content = fileContent
. replace ( "<!-- INSERT MESSAGE -->" , ` <script>window.message = ${ JSON . stringify ( message ) } ;</script> ` ) ;
const content = fileContent . replace (
"<!-- INSERT MESSAGE -->" ,
` <script>window.message = ${ jsesc ( message , { isScriptContext : true , json : true } )};</script> `
) ;
resp . status ( 200 ) . type ( 'html' ) . send ( content ) ;
} ;
}
@ -98,10 +103,15 @@ export function makeSendAppPage(opts: {
const warning = testLogin ? "<div class=\"dev_warning\">Authentication is not enforced</div>" : "" ;
const content = fileContent
. replace ( "<!-- INSERT WARNING -->" , warning )
. replace ( "<!-- INSERT TITLE -->" , getPageTitle ( config ) )
. replace ( "<!-- INSERT META -->" , getPageMetadataHtmlSnippet ( config ) )
. replace ( "<!-- INSERT TITLE SUFFIX -->" , getPageTitleSuffix ( server ? . getGristConfig ( ) ) )
. replace ( "<!-- INSERT BASE -->" , ` <base href=" ${ staticBaseUrl } "> ` + tagManagerSnippet )
. replace ( "<!-- INSERT CUSTOM -->" , customHeadHtmlSnippet )
. replace ( "<!-- INSERT CONFIG -->" , ` <script>window.gristConfig = ${ JSON . stringify ( config ) } ;</script> ` ) ;
. replace (
"<!-- INSERT CONFIG -->" ,
` <script>window.gristConfig = ${ jsesc ( config , { isScriptContext : true , json : true } )};</script> `
) ;
resp . status ( options . status ) . type ( 'html' ) . send ( content ) ;
} ;
}
@ -123,3 +133,51 @@ function configuredPageTitleSuffix() {
const result = process . env . GRIST_PAGE_TITLE_SUFFIX ;
return result === "_blank" ? "" : result ;
}
/ * *
* Returns a page title suitable for inserting into an HTML title element .
*
* Currently returns the document name if the page being requested is for a document , or
* a placeholder , "Loading..." , that ' s updated in the client once the page has loaded .
*
* Note : The string returned is escaped and safe to insert into HTML .
* /
function getPageTitle ( config : GristLoadConfig ) : string {
const maybeDoc = getDocFromConfig ( config ) ;
if ( ! maybeDoc ) { return 'Loading...' ; }
return handlebars . Utils . escapeExpression ( maybeDoc . name ) ;
}
/ * *
* Returns a string representation of 0 or more HTML metadata elements .
*
* Currently includes the document description and thumbnail if the requested page is
* for a document and the document has one set .
*
* Note : The string returned is escaped and safe to insert into HTML .
* /
function getPageMetadataHtmlSnippet ( config : GristLoadConfig ) : string {
const metadataElements : string [ ] = [ ] ;
const maybeDoc = getDocFromConfig ( config ) ;
const description = maybeDoc ? . options ? . description ;
if ( description ) {
const content = handlebars . Utils . escapeExpression ( description ) ;
metadataElements . push ( ` <meta name="description" content=" ${ content } "> ` ) ;
}
const thumbnail = maybeDoc ? . options ? . icon ;
if ( thumbnail ) {
const content = handlebars . Utils . escapeExpression ( thumbnail ) ;
metadataElements . push ( ` <meta name="thumbnail" content=" ${ content } "> ` ) ;
}
return metadataElements . join ( '\n' ) ;
}
function getDocFromConfig ( config : GristLoadConfig ) : Document | null {
if ( ! config . getDoc || ! config . assignmentId ) { return null ; }
return config . getDoc [ config . assignmentId ] ? ? null ;
}
George Gevoian
2 years ago