Cristian Balas
50 lines
2.0 KiB
JavaScript
50 lines
2.0 KiB
JavaScript
'use strict'
|
|
const zlib = require( 'zlib' )
|
|
const debug = require( 'debug' )
|
|
const appRoot = require( 'app-root-path' )
|
|
const cors = require( 'cors' )
|
|
|
|
const { matomoMiddleware } = require( `${appRoot}/logging/matomoHelper` )
|
|
const { contextMiddleware, validateScopes, authorizeResolver } = require( `${appRoot}/modules/shared` )
|
|
const { validatePermissionsReadStream } = require( './authUtils' )
|
|
const { SpeckleObjectsStream } = require( './speckleObjectsStream' )
|
|
const { getObjectsStream } = require( '../services/objects' )
|
|
|
|
const { pipeline, PassThrough } = require( 'stream' )
|
|
|
|
module.exports = ( app ) => {
|
|
app.options( '/api/getobjects/:streamId', cors() )
|
|
|
|
app.post( '/api/getobjects/:streamId', cors(), contextMiddleware, matomoMiddleware, async ( req, res ) => {
|
|
let hasStreamAccess = await validatePermissionsReadStream( req.params.streamId, req )
|
|
if ( !hasStreamAccess.result ) {
|
|
return res.status( hasStreamAccess.status ).end()
|
|
}
|
|
|
|
let childrenList = JSON.parse( req.body.objects )
|
|
|
|
let simpleText = req.headers.accept === 'text/plain'
|
|
|
|
res.writeHead( 200, { 'Content-Encoding': 'gzip', 'Content-Type': simpleText ? 'text/plain; charset=UTF-8' : 'application/json' } )
|
|
|
|
let dbStream = await getObjectsStream( { streamId: req.params.streamId, objectIds: childrenList } )
|
|
let speckleObjStream = new SpeckleObjectsStream( simpleText )
|
|
let gzipStream = zlib.createGzip( )
|
|
|
|
pipeline(
|
|
dbStream,
|
|
speckleObjStream,
|
|
gzipStream,
|
|
new PassThrough( { highWaterMark: 16384 * 31 } ),
|
|
res,
|
|
( err ) => {
|
|
if ( err ) {
|
|
debug( 'speckle:error' )( `[User ${req.context.userId || '-'}] Error streaming objects from stream ${req.params.streamId}: ${err}` )
|
|
} else {
|
|
debug( 'speckle:info' )( `[User ${req.context.userId || '-'}] Streamed ${childrenList.length} objects from stream ${req.params.streamId} (size: ${gzipStream.bytesWritten / 1000000} MB)` )
|
|
}
|
|
}
|
|
)
|
|
} )
|
|
}
|