--- /dev/null
+/* ====================================================================\r
+ Licensed to the Apache Software Foundation (ASF) under one or more\r
+ contributor license agreements. See the NOTICE file distributed with\r
+ this work for additional information regarding copyright ownership.\r
+ The ASF licenses this file to You under the Apache License, Version 2.0\r
+ (the "License"); you may not use this file except in compliance with\r
+ the License. You may obtain a copy of the License at\r
+\r
+ http://www.apache.org/licenses/LICENSE-2.0\r
+\r
+ Unless required by applicable law or agreed to in writing, software\r
+ distributed under the License is distributed on an "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ See the License for the specific language governing permissions and\r
+ limitations under the License.\r
+==================================================================== */\r
+\r
+package org.apache.poi.poifs.macros;\r
+\r
+import java.io.ByteArrayInputStream;\r
+import java.io.ByteArrayOutputStream;\r
+import java.io.File;\r
+import java.io.FileInputStream;\r
+import java.io.IOException;\r
+import java.io.InputStream;\r
+import java.io.PushbackInputStream;\r
+import java.nio.charset.Charset;\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+import java.util.zip.ZipEntry;\r
+import java.util.zip.ZipInputStream;\r
+\r
+import org.apache.poi.poifs.eventfilesystem.POIFSReader;\r
+import org.apache.poi.poifs.eventfilesystem.POIFSReaderEvent;\r
+import org.apache.poi.poifs.eventfilesystem.POIFSReaderListener;\r
+import org.apache.poi.poifs.filesystem.DocumentInputStream;\r
+import org.apache.poi.poifs.filesystem.NPOIFSFileSystem;\r
+import org.apache.poi.poifs.filesystem.OfficeXmlFileException;\r
+import org.apache.poi.util.IOUtils;\r
+import org.apache.poi.util.RLEDecompressingInputStream;\r
+\r
+/**\r
+ * Finds all VBA Macros in an office file (OLE2/POIFS and OOXML/OPC),\r
+ * and returns them\r
+ */\r
+public class VBAMacroReader {\r
+ protected static final String VBA_PROJECT = "xl/vbaProject.bin";\r
+ \r
+ private NPOIFSFileSystem fs;\r
+ \r
+ public VBAMacroReader(InputStream rstream) throws IOException {\r
+ PushbackInputStream stream = new PushbackInputStream(rstream, 8);\r
+ byte[] header8 = IOUtils.peekFirst8Bytes(stream);\r
+\r
+ if (NPOIFSFileSystem.hasPOIFSHeader(header8)) {\r
+ fs = new NPOIFSFileSystem(stream);\r
+ } else {\r
+ stream.unread(header8);\r
+ openOOXML(stream);\r
+ }\r
+ }\r
+ \r
+ public VBAMacroReader(File file) throws IOException {\r
+ try {\r
+ this.fs = new NPOIFSFileSystem(file);\r
+ } catch (OfficeXmlFileException e) {\r
+ openOOXML(new FileInputStream(file));\r
+ }\r
+ }\r
+ public VBAMacroReader(NPOIFSFileSystem fs) {\r
+ this.fs = fs;\r
+ }\r
+ \r
+ private void openOOXML(InputStream zipFile) throws IOException {\r
+ ZipInputStream zis = new ZipInputStream(zipFile);\r
+ ZipEntry zipEntry;\r
+ while ((zipEntry = zis.getNextEntry()) != null) {\r
+ if (VBA_PROJECT.equals(zipEntry.getName())) {\r
+ try {\r
+ this.fs = new NPOIFSFileSystem(zis);\r
+ } finally {\r
+ zis.closeEntry();\r
+ }\r
+ zis.close();\r
+ return;\r
+ }\r
+ }\r
+ zis.close();\r
+ throw new IllegalArgumentException("No VBA project found");\r
+ }\r
+\r
+ /**\r
+ * Reads all macros from all modules of the opened office file. \r
+ */\r
+ public Map<String, String> readMacros() throws IOException {\r
+ class Module {\r
+ Integer offset;\r
+ byte[] buf;\r
+ }\r
+ class ModuleMap extends HashMap<String, Module> {\r
+\r
+ Charset charset = Charset.forName("Cp1252"); // default charset\r
+ }\r
+ try {\r
+ final ModuleMap modules = new ModuleMap();\r
+ POIFSReader dirReader = new POIFSReader();\r
+ dirReader.registerListener(new POIFSReaderListener() {\r
+\r
+ public void processPOIFSReaderEvent(POIFSReaderEvent event) {\r
+ try {\r
+ String name = event.getName();\r
+ if (event.getPath().toString().endsWith("\\VBA")) {\r
+ if ("dir".equals(name)) {\r
+ // process DIR\r
+ RLEDecompressingInputStream in = new RLEDecompressingInputStream(event.getStream());\r
+ String streamName = null;\r
+ while (true) {\r
+ int id = in.readShort();\r
+ if (id == -1 || id == 0x0010) {\r
+ break; // EOF or TERMINATOR\r
+ }\r
+ int len = in.readInt();\r
+ switch (id) {\r
+ case 0x0009: // PROJECTVERSION\r
+ in.skip(6);\r
+ break;\r
+ case 0x0003: // PROJECTCODEPAGE\r
+ int codepage = in.readShort();\r
+ modules.charset = Charset.forName("Cp" + codepage);\r
+ break;\r
+ case 0x001A: // STREAMNAME\r
+ byte[] streamNameBuf = new byte[len];\r
+ int count = in.read(streamNameBuf);\r
+ streamName = new String(streamNameBuf, 0, count, modules.charset);\r
+ break;\r
+ case 0x0031: // MODULEOFFSET\r
+ int moduleOffset = in.readInt();\r
+ Module module = modules.get(streamName);\r
+ if (module != null) {\r
+ ByteArrayOutputStream out = new ByteArrayOutputStream();\r
+ RLEDecompressingInputStream stream = new RLEDecompressingInputStream(new ByteArrayInputStream(\r
+ module.buf, moduleOffset, module.buf.length - moduleOffset));\r
+ IOUtils.copy(stream, out);\r
+ stream.close();\r
+ out.close();\r
+ module.buf = out.toByteArray();\r
+ } else {\r
+ module = new Module();\r
+ module.offset = moduleOffset;\r
+ modules.put(streamName, module);\r
+ }\r
+ break;\r
+ default:\r
+ in.skip(len);\r
+ break;\r
+ }\r
+ }\r
+ } else if (!name.startsWith("__SRP") && !name.startsWith("_VBA_PROJECT")) {\r
+ // process module, skip __SRP and _VBA_PROJECT since these do not contain macros\r
+ Module module = modules.get(name);\r
+ final DocumentInputStream stream = event.getStream();\r
+ final InputStream in;\r
+ if (module == null) {\r
+ // no DIR stream with offsets yet, so store the compressed bytes for later\r
+ module = new Module();\r
+ modules.put(name, module);\r
+ in = stream;\r
+ } else {\r
+ // we know the offset already, so decompress immediately on-the-fly\r
+ stream.skip(module.offset);\r
+ in = new RLEDecompressingInputStream(stream);\r
+ }\r
+ final ByteArrayOutputStream out = new ByteArrayOutputStream();\r
+ IOUtils.copy(in, out);\r
+ in.close();\r
+ out.close();\r
+ module.buf = out.toByteArray();\r
+ }\r
+ }\r
+ } catch (IOException e) {\r
+ throw new RuntimeException(e);\r
+ }\r
+ }\r
+ });\r
+ dirReader.read(null); // TODO\r
+ Map<String, String> moduleSources = new HashMap<String, String>();\r
+ for (Map.Entry<String, Module> entry : modules.entrySet()) {\r
+ Module module = entry.getValue();\r
+ if (module.buf != null && module.buf.length > 0) { // Skip empty modules\r
+ moduleSources.put(entry.getKey(), new String(module.buf, modules.charset));\r
+ }\r
+ }\r
+ return moduleSources;\r
+ } catch (IOException e) {\r
+ e.printStackTrace();\r
+ throw e;\r
+ }\r
+ }\r
+}\r
projects / poi.git / commitdiff