pull/584/head
Michael Peter Christen
1 year ago
parent
5afcba162b
commit
92dad3ed49
Binary file not shown.
@ -1,279 +0,0 @@
|
||||
// sevenzipParser.java
|
||||
// -------------------------------------
|
||||
// part of YACY
|
||||
// (C) by Michael Peter Christen; mc@yacy.net
|
||||
// first published on http://www.anomic.de
|
||||
// Frankfurt, Germany, 2004
|
||||
//
|
||||
// This file ist contributed by Franz Brausze
|
||||
//
|
||||
// $LastChangedDate$
|
||||
// $LastChangedRevision$
|
||||
// $LastChangedBy$
|
||||
//
|
||||
// This program is free software; you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation; either version 2 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program; if not, write to the Free Software
|
||||
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
|
||||
package net.yacy.document.parser;
|
||||
|
||||
import java.io.ByteArrayInputStream;
|
||||
import java.io.ByteArrayOutputStream;
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.io.OutputStream;
|
||||
import java.util.Date;
|
||||
import java.util.Set;
|
||||
|
||||
import net.yacy.cora.document.id.AnchorURL;
|
||||
import net.yacy.cora.document.id.DigestURL;
|
||||
import net.yacy.cora.document.id.MultiProtocolURL;
|
||||
import net.yacy.cora.util.ConcurrentLog;
|
||||
import net.yacy.document.AbstractParser;
|
||||
import net.yacy.document.Document;
|
||||
import net.yacy.document.Parser;
|
||||
import net.yacy.document.TextParser;
|
||||
import net.yacy.document.VocabularyScraper;
|
||||
import net.yacy.document.parser.html.TagValency;
|
||||
import net.yacy.kelondro.util.FileUtils;
|
||||
import SevenZip.ArchiveExtractCallback;
|
||||
import SevenZip.IInStream;
|
||||
import SevenZip.Archive.IInArchive;
|
||||
import SevenZip.Archive.SevenZipEntry;
|
||||
import SevenZip.Archive.SevenZip.Handler;
|
||||
|
||||
public class sevenzipParser extends AbstractParser implements Parser {
|
||||
|
||||
public sevenzipParser() {
|
||||
super("7zip Archive Parser");
|
||||
this.SUPPORTED_EXTENSIONS.add("7z");
|
||||
this.SUPPORTED_MIME_TYPES.add("application/x-7z-compressed");
|
||||
}
|
||||
|
||||
public Document parse(
|
||||
final DigestURL location,
|
||||
final String mimeType,
|
||||
final String charset,
|
||||
final TagValency defaultValency,
|
||||
final Set<String> valencySwitchTagNames,
|
||||
final int timezoneOffset,
|
||||
final IInStream source) throws Parser.Failure, InterruptedException {
|
||||
|
||||
final String filename = location.getFileName();
|
||||
final Document doc = new Document(
|
||||
location,
|
||||
mimeType,
|
||||
charset,
|
||||
this,
|
||||
null,
|
||||
null,
|
||||
AbstractParser.singleList(filename.isEmpty() ? location.toTokens() : MultiProtocolURL.unescape(filename)), // title,
|
||||
null,
|
||||
null,
|
||||
null,
|
||||
null,
|
||||
0.0d, 0.0d,
|
||||
(Object)null,
|
||||
null,
|
||||
null,
|
||||
null,
|
||||
false,
|
||||
new Date());
|
||||
Handler archive;
|
||||
AbstractParser.log.fine("opening 7zip archive...");
|
||||
try {
|
||||
archive = new Handler(source);
|
||||
} catch (final IOException e) {
|
||||
throw new Parser.Failure("error opening 7zip archive: " + e.getMessage(), location);
|
||||
}
|
||||
final SZParserExtractCallback aec = new SZParserExtractCallback(AbstractParser.log, archive, doc, location.getFile(), defaultValency, valencySwitchTagNames, timezoneOffset);
|
||||
AbstractParser.log.fine("processing archive contents...");
|
||||
try {
|
||||
archive.Extract(null, -1, 0, aec);
|
||||
return doc;
|
||||
} catch (final IOException e) {
|
||||
if (e.getCause() instanceof InterruptedException)
|
||||
throw (InterruptedException)e.getCause();
|
||||
if (e.getCause() instanceof Parser.Failure)
|
||||
throw (Parser.Failure)e.getCause();
|
||||
throw new Parser.Failure(
|
||||
"error processing 7zip archive at internal file " + aec.getCurrentFilePath() + ": " + e.getMessage(),
|
||||
location);
|
||||
} finally {
|
||||
try { archive.close(); } catch (final IOException e) { }
|
||||
}
|
||||
}
|
||||
|
||||
public Document parse(
|
||||
final DigestURL location,
|
||||
final String mimeType,
|
||||
final String charset,
|
||||
final TagValency defaultValency,
|
||||
final Set<String> valencySwitchTagNames,
|
||||
final int timezoneOffset,
|
||||
final byte[] source) throws Parser.Failure, InterruptedException {
|
||||
return parse(location, mimeType, charset, defaultValency, valencySwitchTagNames, timezoneOffset, new ByteArrayIInStream(source));
|
||||
}
|
||||
|
||||
@Override
|
||||
public Document[] parse(
|
||||
final DigestURL location,
|
||||
final String mimeType,
|
||||
final String charset,
|
||||
final TagValency defaultValency,
|
||||
final Set<String> valencySwitchTagNames,
|
||||
final VocabularyScraper scraper,
|
||||
final int timezoneOffset,
|
||||
final InputStream source) throws Parser.Failure, InterruptedException {
|
||||
try {
|
||||
final ByteArrayOutputStream cfos = new ByteArrayOutputStream();
|
||||
FileUtils.copy(source, cfos);
|
||||
return new Document[]{parse(location, mimeType, charset, defaultValency, valencySwitchTagNames, timezoneOffset, cfos.toByteArray())};
|
||||
} catch (final IOException e) {
|
||||
throw new Parser.Failure("error processing 7zip archive: " + e.getMessage(), location);
|
||||
}
|
||||
}
|
||||
|
||||
// wrapper class to redirect output of standard ArchiveExtractCallback to serverLog
|
||||
// and parse the extracted content
|
||||
private static class SZParserExtractCallback extends ArchiveExtractCallback {
|
||||
|
||||
private final ConcurrentLog log;
|
||||
private ByteArrayOutputStream cfos = null;
|
||||
private final Document doc;
|
||||
private final String prefix;
|
||||
private final TagValency defaultValency;
|
||||
private Set<String> valencySwitchTagNames;
|
||||
private final int timezoneOffset;
|
||||
|
||||
public SZParserExtractCallback(
|
||||
final ConcurrentLog logger,
|
||||
final IInArchive handler,
|
||||
final Document doc,
|
||||
final String prefix,
|
||||
final TagValency defaultValency,
|
||||
final Set<String> valencySwitchTagNames,
|
||||
final int timezoneOffset) {
|
||||
super.Init(handler);
|
||||
this.log = logger;
|
||||
this.doc = doc;
|
||||
this.prefix = prefix;
|
||||
this.defaultValency = defaultValency;
|
||||
this.valencySwitchTagNames = valencySwitchTagNames;
|
||||
this.timezoneOffset = timezoneOffset;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void PrepareOperation(final int arg0) {
|
||||
this.extractMode = (arg0 == IInArchive.NExtract_NAskMode_kExtract);
|
||||
switch (arg0) {
|
||||
case IInArchive.NExtract_NAskMode_kExtract:
|
||||
this.log.fine("Extracting " + this.filePath);
|
||||
break;
|
||||
case IInArchive.NExtract_NAskMode_kTest:
|
||||
this.log.fine("Testing " + this.filePath);
|
||||
break;
|
||||
case IInArchive.NExtract_NAskMode_kSkip:
|
||||
this.log.fine("Skipping " + this.filePath);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void SetOperationResult(final int arg0) throws IOException {
|
||||
if (arg0 != IInArchive.NExtract_NOperationResult_kOK) {
|
||||
this.NumErrors++;
|
||||
switch(arg0) {
|
||||
case IInArchive.NExtract_NOperationResult_kUnSupportedMethod:
|
||||
throw new IOException("Unsupported Method");
|
||||
case IInArchive.NExtract_NOperationResult_kCRCError:
|
||||
throw new IOException("CRC Failed");
|
||||
case IInArchive.NExtract_NOperationResult_kDataError:
|
||||
throw new IOException("Data Error");
|
||||
default:
|
||||
// throw new IOException("Unknown Error");
|
||||
}
|
||||
} else try {
|
||||
|
||||
if (this.cfos != null) {
|
||||
// parse the file
|
||||
Document[] theDocs;
|
||||
// workaround for relative links in file, normally '#' shall be used behind the location, see
|
||||
// below for reversion of the effects
|
||||
final AnchorURL url = AnchorURL.newAnchor(this.doc.dc_source(), this.prefix + "/" + super.filePath);
|
||||
final String mime = TextParser.mimeOf(super.filePath.substring(super.filePath.lastIndexOf('.') + 1));
|
||||
theDocs = TextParser.parseSource(url, mime, null,this.defaultValency, this.valencySwitchTagNames, new VocabularyScraper(), timezoneOffset, this.doc.getDepth() + 1, this.cfos.toByteArray());
|
||||
|
||||
this.doc.addSubDocuments(theDocs);
|
||||
}
|
||||
} catch (final Exception e) {
|
||||
final IOException ex = new IOException("error parsing extracted content of " + super.filePath + ": " + e.getMessage());
|
||||
ex.initCause(e);
|
||||
throw ex;
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public OutputStream GetStream(final int index, final int askExtractMode) throws IOException {
|
||||
final SevenZipEntry item = super.archiveHandler.getEntry(index);
|
||||
super.filePath = item.getName();
|
||||
this.cfos = (item.isDirectory()) ? null : new ByteArrayOutputStream();
|
||||
return this.cfos;
|
||||
}
|
||||
|
||||
public String getCurrentFilePath() {
|
||||
return super.filePath;
|
||||
}
|
||||
}
|
||||
|
||||
private static class SeekableByteArrayInputStream extends ByteArrayInputStream {
|
||||
public SeekableByteArrayInputStream(final byte[] buf) { super(buf); }
|
||||
public SeekableByteArrayInputStream(final byte[] buf, final int off, final int len) { super(buf, off, len); }
|
||||
|
||||
public int getPosition() { return super.pos; }
|
||||
public void seekRelative(final int offset) { seekAbsolute(super.pos + offset); }
|
||||
public void seekAbsolute(final int offset) {
|
||||
if (offset > super.count)
|
||||
throw new IndexOutOfBoundsException(Integer.toString(offset));
|
||||
super.pos = offset;
|
||||
}
|
||||
}
|
||||
|
||||
private static class ByteArrayIInStream extends IInStream {
|
||||
|
||||
private final SeekableByteArrayInputStream sbais;
|
||||
|
||||
public ByteArrayIInStream(final byte[] buffer) {
|
||||
this.sbais = new SeekableByteArrayInputStream(buffer);
|
||||
}
|
||||
|
||||
@Override
|
||||
public long Seek(final long offset, final int origin) {
|
||||
switch (origin) {
|
||||
case STREAM_SEEK_SET: this.sbais.seekAbsolute((int)offset); break;
|
||||
case STREAM_SEEK_CUR: this.sbais.seekRelative((int)offset); break;
|
||||
}
|
||||
return this.sbais.getPosition();
|
||||
}
|
||||
|
||||
@Override
|
||||
public int read() throws IOException {
|
||||
return this.sbais.read();
|
||||
}
|
||||
|
||||
@Override
|
||||
public int read(final byte[] b, final int off, final int len) throws IOException {
|
||||
return this.sbais.read(b, off, len);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue