001/* 002 * (C) Copyright 2018 Nuxeo (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Thomas Roger 018 */ 019 020package org.nuxeo.wopi; 021 022import java.util.Arrays; 023 024import org.apache.commons.codec.binary.Base64; 025import org.nuxeo.ecm.core.api.DocumentModel; 026 027/** 028 * Given a WOPI file id, this class extracts information about a blob: a repository name, a doc id and the blob xpath. 029 * <p> 030 * A WOPI file id is a base64 encoded string formatted as {@code repositoryName/docId/xpath}. 031 * 032 * @since 10.3 033 */ 034public class FileInfo { 035 036 public final String repositoryName; 037 038 public final String docId; 039 040 public final String xpath; 041 042 /** 043 * Returns a WOPI file id given a {@code repositoryName}, {@code docId} and a blob {@code xpath}. 044 */ 045 public static String computeFileId(String repositoryName, String docId, String xpath) { 046 return Base64.encodeBase64String(String.join("/", repositoryName, docId, xpath).getBytes()); 047 } 048 049 /** 050 * Returns a WOPI file id given a {@code doc}, and a blob {@code xpath}. 051 */ 052 public static String computeFileId(DocumentModel doc, String xpath) { 053 return computeFileId(doc.getRepositoryName(), doc.getId(), xpath); 054 } 055 056 public FileInfo(String fileId) { 057 String str = new String(Base64.decodeBase64(fileId)); 058 String[] parts = str.split("/"); 059 repositoryName = parts[0]; 060 docId = parts[1]; 061 xpath = String.join("/", Arrays.asList(parts).subList(2, parts.length)); 062 } 063}