/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */ /**
 * Parse multipart form data sent via POST requests.
 */ export default function parsePostForm ( requestBody ) { type ParsedFields = Record < string , string [ ] | string > ; if ( requestBody . constructor . name !== 'ArrayBuffer' ) { return requestBody as unknown as ParsedFields ; } const lines = new TextDecoder ( 'utf-8' ) . decode ( requestBody ) . split ( '\n' ) ; const fields = { } ; let key = '' ; let value = [ ] ; function addField ( key , value ) { if ( key in fields ) { if ( Array . isArray ( fields [ key ] ) ) { ( fields [ key ] as string [ ] ) . push ( value ) ; } else { fields [ key ] = [ fields [ key ] as string , value ] ; } } else { fields [ key ] = value ; } } lines . forEach ( line => { const nameMatch = line . match ( /Content-Disposition: form-data; name="(.*)"/ ) ; if ( nameMatch ) { if ( key ) { addField ( key , value . join ( '\n' ) ) ; } key = nameMatch [ 1 ] ; value = [ ] ; } else if ( ! /----.*FormBoundary/ . test ( line ) ) { value . push ( line ) ; } } ) ; if ( key && value ) { addField ( key , value . join ( '\n' ) ) ; } return fields ; }