--- /dev/null
+//
+// ========================================================================
+// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+// ------------------------------------------------------------------------
+// All rights reserved. This program and the accompanying materials
+// are made available under the terms of the Eclipse Public License v1.0
+// and Apache License v2.0 which accompanies this distribution.
+//
+// The Eclipse Public License is available at
+// http://www.eclipse.org/legal/epl-v10.html
+//
+// The Apache License v2.0 is available at
+// http://www.opensource.org/licenses/apache2.0.php
+//
+// You may elect to redistribute this code under either of these licenses.
+// ========================================================================
+//
+
+package org.eclipse.jetty.util;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FilterInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Locale;
+
+import javax.servlet.MultipartConfigElement;
+import javax.servlet.ServletException;
+import javax.servlet.http.Part;
+
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.util.log.Logger;
+
+
+
+/**
+ * MultiPartInputStream
+ *
+ * Handle a MultiPart Mime input stream, breaking it up on the boundary into files and strings.
+ */
+public class MultiPartInputStreamParser
+{
+ private static final Logger LOG = Log.getLogger(MultiPartInputStreamParser.class);
+ public static final MultipartConfigElement __DEFAULT_MULTIPART_CONFIG = new MultipartConfigElement(System.getProperty("java.io.tmpdir"));
+ protected InputStream _in;
+ protected MultipartConfigElement _config;
+ protected String _contentType;
+ protected MultiMap _parts;
+ protected File _tmpDir;
+ protected File _contextTmpDir;
+ protected boolean _deleteOnExit;
+
+
+
+ public class MultiPart implements Part
+ {
+ protected String _name;
+ protected String _filename;
+ protected File _file;
+ protected OutputStream _out;
+ protected ByteArrayOutputStream2 _bout;
+ protected String _contentType;
+ protected MultiMap _headers;
+ protected long _size = 0;
+ protected boolean _temporary = true;
+
+ public MultiPart (String name, String filename)
+ throws IOException
+ {
+ _name = name;
+ _filename = filename;
+ }
+
+ protected void setContentType (String contentType)
+ {
+ _contentType = contentType;
+ }
+
+
+ protected void open()
+ throws IOException
+ {
+ //We will either be writing to a file, if it has a filename on the content-disposition
+ //and otherwise a byte-array-input-stream, OR if we exceed the getFileSizeThreshold, we
+ //will need to change to write to a file.
+ if (_filename != null && _filename.trim().length() > 0)
+ {
+ createFile();
+ }
+ else
+ {
+ //Write to a buffer in memory until we discover we've exceed the
+ //MultipartConfig fileSizeThreshold
+ _out = _bout= new ByteArrayOutputStream2();
+ }
+ }
+
+ protected void close()
+ throws IOException
+ {
+ _out.close();
+ }
+
+
+ protected void write (int b)
+ throws IOException
+ {
+ if (MultiPartInputStreamParser.this._config.getMaxFileSize() > 0 && _size + 1 > MultiPartInputStreamParser.this._config.getMaxFileSize())
+ throw new IllegalStateException ("Multipart Mime part "+_name+" exceeds max filesize");
+
+ if (MultiPartInputStreamParser.this._config.getFileSizeThreshold() > 0 && _size + 1 > MultiPartInputStreamParser.this._config.getFileSizeThreshold() && _file==null)
+ createFile();
+ _out.write(b);
+ _size ++;
+ }
+
+ protected void write (byte[] bytes, int offset, int length)
+ throws IOException
+ {
+ if (MultiPartInputStreamParser.this._config.getMaxFileSize() > 0 && _size + length > MultiPartInputStreamParser.this._config.getMaxFileSize())
+ throw new IllegalStateException ("Multipart Mime part "+_name+" exceeds max filesize");
+
+ if (MultiPartInputStreamParser.this._config.getFileSizeThreshold() > 0 && _size + length > MultiPartInputStreamParser.this._config.getFileSizeThreshold() && _file==null)
+ createFile();
+
+ _out.write(bytes, offset, length);
+ _size += length;
+ }
+
+ protected void createFile ()
+ throws IOException
+ {
+ _file = File.createTempFile("MultiPart", "", MultiPartInputStreamParser.this._tmpDir);
+ if (_deleteOnExit)
+ _file.deleteOnExit();
+ FileOutputStream fos = new FileOutputStream(_file);
+ BufferedOutputStream bos = new BufferedOutputStream(fos);
+
+ if (_size > 0 && _out != null)
+ {
+ //already written some bytes, so need to copy them into the file
+ _out.flush();
+ _bout.writeTo(bos);
+ _out.close();
+ _bout = null;
+ }
+ _out = bos;
+ }
+
+
+
+ protected void setHeaders(MultiMap headers)
+ {
+ _headers = headers;
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getContentType()
+ */
+ public String getContentType()
+ {
+ return _contentType;
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getHeader(java.lang.String)
+ */
+ public String getHeader(String name)
+ {
+ if (name == null)
+ return null;
+ return (String)_headers.getValue(name.toLowerCase(Locale.ENGLISH), 0);
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getHeaderNames()
+ */
+ public Collection<String> getHeaderNames()
+ {
+ return _headers.keySet();
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getHeaders(java.lang.String)
+ */
+ public Collection<String> getHeaders(String name)
+ {
+ return _headers.getValues(name);
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getInputStream()
+ */
+ public InputStream getInputStream() throws IOException
+ {
+ if (_file != null)
+ {
+ //written to a file, whether temporary or not
+ return new BufferedInputStream (new FileInputStream(_file));
+ }
+ else
+ {
+ //part content is in memory
+ return new ByteArrayInputStream(_bout.getBuf(),0,_bout.size());
+ }
+ }
+
+
+ /**
+ * @see javax.servlet.http.Part#getSubmittedFileName()
+ */
+ @Override
+ public String getSubmittedFileName()
+ {
+ return getContentDispositionFilename();
+ }
+
+ public byte[] getBytes()
+ {
+ if (_bout!=null)
+ return _bout.toByteArray();
+ return null;
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getName()
+ */
+ public String getName()
+ {
+ return _name;
+ }
+
+ /**
+ * @see javax.servlet.http.Part#getSize()
+ */
+ public long getSize()
+ {
+ return _size;
+ }
+
+ /**
+ * @see javax.servlet.http.Part#write(java.lang.String)
+ */
+ public void write(String fileName) throws IOException
+ {
+ if (_file == null)
+ {
+ _temporary = false;
+
+ //part data is only in the ByteArrayOutputStream and never been written to disk
+ _file = new File (_tmpDir, fileName);
+
+ BufferedOutputStream bos = null;
+ try
+ {
+ bos = new BufferedOutputStream(new FileOutputStream(_file));
+ _bout.writeTo(bos);
+ bos.flush();
+ }
+ finally
+ {
+ if (bos != null)
+ bos.close();
+ _bout = null;
+ }
+ }
+ else
+ {
+ //the part data is already written to a temporary file, just rename it
+ _temporary = false;
+
+ File f = new File(_tmpDir, fileName);
+ if (_file.renameTo(f))
+ _file = f;
+ }
+ }
+
+ /**
+ * Remove the file, whether or not Part.write() was called on it
+ * (ie no longer temporary)
+ * @see javax.servlet.http.Part#delete()
+ */
+ public void delete() throws IOException
+ {
+ if (_file != null && _file.exists())
+ _file.delete();
+ }
+
+ /**
+ * Only remove tmp files.
+ *
+ * @throws IOException
+ */
+ public void cleanUp() throws IOException
+ {
+ if (_temporary && _file != null && _file.exists())
+ _file.delete();
+ }
+
+
+ /**
+ * Get the file, if any, the data has been written to.
+ */
+ public File getFile ()
+ {
+ return _file;
+ }
+
+
+ /**
+ * Get the filename from the content-disposition.
+ * @return null or the filename
+ */
+ public String getContentDispositionFilename ()
+ {
+ return _filename;
+ }
+ }
+
+
+
+
+ /**
+ * @param in Request input stream
+ * @param contentType Content-Type header
+ * @param config MultipartConfigElement
+ * @param contextTmpDir javax.servlet.context.tempdir
+ */
+ public MultiPartInputStreamParser (InputStream in, String contentType, MultipartConfigElement config, File contextTmpDir)
+ {
+ _in = new ReadLineInputStream(in);
+ _contentType = contentType;
+ _config = config;
+ _contextTmpDir = contextTmpDir;
+ if (_contextTmpDir == null)
+ _contextTmpDir = new File (System.getProperty("java.io.tmpdir"));
+
+ if (_config == null)
+ _config = new MultipartConfigElement(_contextTmpDir.getAbsolutePath());
+ }
+
+ /**
+ * Get the already parsed parts.
+ */
+ public Collection<Part> getParsedParts()
+ {
+ if (_parts == null)
+ return Collections.emptyList();
+
+ Collection<Object> values = _parts.values();
+ List<Part> parts = new ArrayList<Part>();
+ for (Object o: values)
+ {
+ List<Part> asList = LazyList.getList(o, false);
+ parts.addAll(asList);
+ }
+ return parts;
+ }
+
+ /**
+ * Delete any tmp storage for parts, and clear out the parts list.
+ *
+ * @throws MultiException
+ */
+ public void deleteParts ()
+ throws MultiException
+ {
+ Collection<Part> parts = getParsedParts();
+ MultiException err = new MultiException();
+ for (Part p:parts)
+ {
+ try
+ {
+ ((MultiPartInputStreamParser.MultiPart)p).cleanUp();
+ }
+ catch(Exception e)
+ {
+ err.add(e);
+ }
+ }
+ _parts.clear();
+
+ err.ifExceptionThrowMulti();
+ }
+
+
+ /**
+ * Parse, if necessary, the multipart data and return the list of Parts.
+ *
+ * @throws IOException
+ * @throws ServletException
+ */
+ public Collection<Part> getParts()
+ throws IOException, ServletException
+ {
+ parse();
+ Collection<Object> values = _parts.values();
+ List<Part> parts = new ArrayList<Part>();
+ for (Object o: values)
+ {
+ List<Part> asList = LazyList.getList(o, false);
+ parts.addAll(asList);
+ }
+ return parts;
+ }
+
+
+ /**
+ * Get the named Part.
+ *
+ * @param name
+ * @throws IOException
+ * @throws ServletException
+ */
+ public Part getPart(String name)
+ throws IOException, ServletException
+ {
+ parse();
+ return (Part)_parts.getValue(name, 0);
+ }
+
+
+ /**
+ * Parse, if necessary, the multipart stream.
+ *
+ * @throws IOException
+ * @throws ServletException
+ */
+ protected void parse ()
+ throws IOException, ServletException
+ {
+ //have we already parsed the input?
+ if (_parts != null)
+ return;
+
+ //initialize
+ long total = 0; //keep running total of size of bytes read from input and throw an exception if exceeds MultipartConfigElement._maxRequestSize
+ _parts = new MultiMap();
+
+ //if its not a multipart request, don't parse it
+ if (_contentType == null || !_contentType.startsWith("multipart/form-data"))
+ return;
+
+ //sort out the location to which to write the files
+
+ if (_config.getLocation() == null)
+ _tmpDir = _contextTmpDir;
+ else if ("".equals(_config.getLocation()))
+ _tmpDir = _contextTmpDir;
+ else
+ {
+ File f = new File (_config.getLocation());
+ if (f.isAbsolute())
+ _tmpDir = f;
+ else
+ _tmpDir = new File (_contextTmpDir, _config.getLocation());
+ }
+
+ if (!_tmpDir.exists())
+ _tmpDir.mkdirs();
+
+ String contentTypeBoundary = "";
+ int bstart = _contentType.indexOf("boundary=");
+ if (bstart >= 0)
+ {
+ int bend = _contentType.indexOf(";", bstart);
+ bend = (bend < 0? _contentType.length(): bend);
+ contentTypeBoundary = QuotedStringTokenizer.unquote(value(_contentType.substring(bstart,bend)).trim());
+ }
+
+ String boundary="--"+contentTypeBoundary;
+ byte[] byteBoundary=(boundary+"--").getBytes(StandardCharsets.ISO_8859_1);
+
+ // Get first boundary
+ String line = null;
+ try
+ {
+ line=((ReadLineInputStream)_in).readLine();
+ }
+ catch (IOException e)
+ {
+ LOG.warn("Badly formatted multipart request");
+ throw e;
+ }
+
+ if (line == null)
+ throw new IOException("Missing content for multipart request");
+
+ boolean badFormatLogged = false;
+ line=line.trim();
+ while (line != null && !line.equals(boundary))
+ {
+ if (!badFormatLogged)
+ {
+ LOG.warn("Badly formatted multipart request");
+ badFormatLogged = true;
+ }
+ line=((ReadLineInputStream)_in).readLine();
+ line=(line==null?line:line.trim());
+ }
+
+ if (line == null)
+ throw new IOException("Missing initial multi part boundary");
+
+ // Read each part
+ boolean lastPart=false;
+
+ outer:while(!lastPart)
+ {
+ String contentDisposition=null;
+ String contentType=null;
+ String contentTransferEncoding=null;
+
+ MultiMap headers = new MultiMap();
+ while(true)
+ {
+ line=((ReadLineInputStream)_in).readLine();
+
+ //No more input
+ if(line==null)
+ break outer;
+
+ //end of headers:
+ if("".equals(line))
+ break;
+
+ total += line.length();
+ if (_config.getMaxRequestSize() > 0 && total > _config.getMaxRequestSize())
+ throw new IllegalStateException ("Request exceeds maxRequestSize ("+_config.getMaxRequestSize()+")");
+
+ //get content-disposition and content-type
+ int c=line.indexOf(':',0);
+ if(c>0)
+ {
+ String key=line.substring(0,c).trim().toLowerCase(Locale.ENGLISH);
+ String value=line.substring(c+1,line.length()).trim();
+ headers.put(key, value);
+ if (key.equalsIgnoreCase("content-disposition"))
+ contentDisposition=value;
+ if (key.equalsIgnoreCase("content-type"))
+ contentType = value;
+ if(key.equals("content-transfer-encoding"))
+ contentTransferEncoding=value;
+ }
+ }
+
+ // Extract content-disposition
+ boolean form_data=false;
+ if(contentDisposition==null)
+ {
+ throw new IOException("Missing content-disposition");
+ }
+
+ QuotedStringTokenizer tok=new QuotedStringTokenizer(contentDisposition,";", false, true);
+ String name=null;
+ String filename=null;
+ while(tok.hasMoreTokens())
+ {
+ String t=tok.nextToken().trim();
+ String tl=t.toLowerCase(Locale.ENGLISH);
+ if(t.startsWith("form-data"))
+ form_data=true;
+ else if(tl.startsWith("name="))
+ name=value(t);
+ else if(tl.startsWith("filename="))
+ filename=filenameValue(t);
+ }
+
+ // Check disposition
+ if(!form_data)
+ {
+ continue;
+ }
+ //It is valid for reset and submit buttons to have an empty name.
+ //If no name is supplied, the browser skips sending the info for that field.
+ //However, if you supply the empty string as the name, the browser sends the
+ //field, with name as the empty string. So, only continue this loop if we
+ //have not yet seen a name field.
+ if(name==null)
+ {
+ continue;
+ }
+
+ //Have a new Part
+ MultiPart part = new MultiPart(name, filename);
+ part.setHeaders(headers);
+ part.setContentType(contentType);
+ _parts.add(name, part);
+ part.open();
+
+ InputStream partInput = null;
+ if ("base64".equalsIgnoreCase(contentTransferEncoding))
+ {
+ partInput = new Base64InputStream((ReadLineInputStream)_in);
+ }
+ else if ("quoted-printable".equalsIgnoreCase(contentTransferEncoding))
+ {
+ partInput = new FilterInputStream(_in)
+ {
+ @Override
+ public int read() throws IOException
+ {
+ int c = in.read();
+ if (c >= 0 && c == '=')
+ {
+ int hi = in.read();
+ int lo = in.read();
+ if (hi < 0 || lo < 0)
+ {
+ throw new IOException("Unexpected end to quoted-printable byte");
+ }
+ char[] chars = new char[] { (char)hi, (char)lo };
+ c = Integer.parseInt(new String(chars),16);
+ }
+ return c;
+ }
+ };
+ }
+ else
+ partInput = _in;
+
+
+ try
+ {
+ int state=-2;
+ int c;
+ boolean cr=false;
+ boolean lf=false;
+
+ // loop for all lines
+ while(true)
+ {
+ int b=0;
+ while((c=(state!=-2)?state:partInput.read())!=-1)
+ {
+ total ++;
+ if (_config.getMaxRequestSize() > 0 && total > _config.getMaxRequestSize())
+ throw new IllegalStateException("Request exceeds maxRequestSize ("+_config.getMaxRequestSize()+")");
+
+ state=-2;
+
+ // look for CR and/or LF
+ if(c==13||c==10)
+ {
+ if(c==13)
+ {
+ partInput.mark(1);
+ int tmp=partInput.read();
+ if (tmp!=10)
+ partInput.reset();
+ else
+ state=tmp;
+ }
+ break;
+ }
+
+ // Look for boundary
+ if(b>=0&&b<byteBoundary.length&&c==byteBoundary[b])
+ {
+ b++;
+ }
+ else
+ {
+ // Got a character not part of the boundary, so we don't have the boundary marker.
+ // Write out as many chars as we matched, then the char we're looking at.
+ if(cr)
+ part.write(13);
+
+ if(lf)
+ part.write(10);
+
+ cr=lf=false;
+ if(b>0)
+ part.write(byteBoundary,0,b);
+
+ b=-1;
+ part.write(c);
+ }
+ }
+
+ // Check for incomplete boundary match, writing out the chars we matched along the way
+ if((b>0&&b<byteBoundary.length-2)||(b==byteBoundary.length-1))
+ {
+ if(cr)
+ part.write(13);
+
+ if(lf)
+ part.write(10);
+
+ cr=lf=false;
+ part.write(byteBoundary,0,b);
+ b=-1;
+ }
+
+ // Boundary match. If we've run out of input or we matched the entire final boundary marker, then this is the last part.
+ if(b>0||c==-1)
+ {
+
+ if(b==byteBoundary.length)
+ lastPart=true;
+ if(state==10)
+ state=-2;
+ break;
+ }
+
+ // handle CR LF
+ if(cr)
+ part.write(13);
+
+ if(lf)
+ part.write(10);
+
+ cr=(c==13);
+ lf=(c==10||state==10);
+ if(state==10)
+ state=-2;
+ }
+ }
+ finally
+ {
+
+ part.close();
+ }
+ }
+ if (!lastPart)
+ throw new IOException("Incomplete parts");
+ }
+
+ public void setDeleteOnExit(boolean deleteOnExit)
+ {
+ _deleteOnExit = deleteOnExit;
+ }
+
+
+ public boolean isDeleteOnExit()
+ {
+ return _deleteOnExit;
+ }
+
+
+ /* ------------------------------------------------------------ */
+ private String value(String nameEqualsValue)
+ {
+ int idx = nameEqualsValue.indexOf('=');
+ String value = nameEqualsValue.substring(idx+1).trim();
+ return QuotedStringTokenizer.unquoteOnly(value);
+ }
+
+
+ /* ------------------------------------------------------------ */
+ private String filenameValue(String nameEqualsValue)
+ {
+ int idx = nameEqualsValue.indexOf('=');
+ String value = nameEqualsValue.substring(idx+1).trim();
+
+ if (value.matches(".??[a-z,A-Z]\\:\\\\[^\\\\].*"))
+ {
+ //incorrectly escaped IE filenames that have the whole path
+ //we just strip any leading & trailing quotes and leave it as is
+ char first=value.charAt(0);
+ if (first=='"' || first=='\'')
+ value=value.substring(1);
+ char last=value.charAt(value.length()-1);
+ if (last=='"' || last=='\'')
+ value = value.substring(0,value.length()-1);
+
+ return value;
+ }
+ else
+ //unquote the string, but allow any backslashes that don't
+ //form a valid escape sequence to remain as many browsers
+ //even on *nix systems will not escape a filename containing
+ //backslashes
+ return QuotedStringTokenizer.unquoteOnly(value, true);
+ }
+
+
+
+ private static class Base64InputStream extends InputStream
+ {
+ ReadLineInputStream _in;
+ String _line;
+ byte[] _buffer;
+ int _pos;
+
+
+ public Base64InputStream(ReadLineInputStream rlis)
+ {
+ _in = rlis;
+ }
+
+ @Override
+ public int read() throws IOException
+ {
+ if (_buffer==null || _pos>= _buffer.length)
+ {
+ //Any CR and LF will be consumed by the readLine() call.
+ //We need to put them back into the bytes returned from this
+ //method because the parsing of the multipart content uses them
+ //as markers to determine when we've reached the end of a part.
+ _line = _in.readLine();
+ if (_line==null)
+ return -1; //nothing left
+ if (_line.startsWith("--"))
+ _buffer=(_line+"\r\n").getBytes(); //boundary marking end of part
+ else if (_line.length()==0)
+ _buffer="\r\n".getBytes(); //blank line
+ else
+ {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream((4*_line.length()/3)+2);
+ B64Code.decode(_line, baos);
+ baos.write(13);
+ baos.write(10);
+ _buffer = baos.toByteArray();
+ }
+
+ _pos=0;
+ }
+
+ return _buffer[_pos++];
+ }
+ }
+}
projects / gigi.git / blobdiff