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