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328 lines
15 KiB
328 lines
15 KiB
// CacheAdmin_p.java
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// -----------------------
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// part of the AnomicHTTPD caching proxy
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// (C) by Michael Peter Christen; mc@anomic.de
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// first published on http://www.anomic.de
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// Frankfurt, Germany, 2004
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//
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// $LastChangedDate$
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// $LastChangedRevision$
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// $LastChangedBy$
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// Using this software in any meaning (reading, learning, copying, compiling,
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// running) means that you agree that the Author(s) is (are) not responsible
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// for cost, loss of data or any harm that may be caused directly or indirectly
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// by usage of this softare or this documentation. The usage of this software
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// is on your own risk. The installation and usage (starting/running) of this
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// software may allow other people or application to access your computer and
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// any attached devices and is highly dependent on the configuration of the
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// software which must be done by the user of the software; the author(s) is
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// (are) also not responsible for proper configuration and usage of the
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// software, even if provoked by documentation provided together with
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// the software.
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//
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// Any changes to this file according to the GPL as documented in the file
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// gpl.txt aside this file in the shipment you received can be done to the
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// lines that follows this copyright notice here, but changes must not be
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// done inside the copyright notive above. A re-distribution must contain
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// the intact and unchanged copyright notice.
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// Contributions and changes to the program code must be marked as such.
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// You must compile this file with
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// javac -classpath .:../classes CacheAdmin_p.java
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// if the shell's current path is HTROOT
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/* changes by [FB], 19.12.2006:
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* - removed HTML code from .java file in favour of the corresponding .html
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*/
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import java.io.File;
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import java.io.FilenameFilter;
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import java.io.IOException;
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import java.io.Writer;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.TreeSet;
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import de.anomic.htmlFilter.htmlFilterContentScraper;
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import de.anomic.htmlFilter.htmlFilterImageEntry;
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import de.anomic.htmlFilter.htmlFilterWriter;
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import de.anomic.http.httpHeader;
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import de.anomic.plasma.plasmaHTCache;
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import de.anomic.plasma.plasmaParserDocument;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.plasma.cache.IResourceInfo;
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import de.anomic.plasma.cache.UnsupportedProtocolException;
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import de.anomic.server.serverFileUtils;
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import de.anomic.server.serverObjects;
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import de.anomic.server.serverSwitch;
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import de.anomic.yacy.yacyURL;
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public class CacheAdmin_p {
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public static final String thisHtmlFile = "CacheAdmin_p.html";
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private static final int TypeDIR = 1;
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private static final int TypeFILE = 0;
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private static final int HtmlFile = 0;
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private static final int NotCached = 1;
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private static final int Image = 2;
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private static final int ProtocolError = 3;
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private static final int SecurityError = 4;
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public static final class Filter implements FilenameFilter {
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private static final String EXCLUDE_NAME = plasmaHTCache.DB_NAME;
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private final File EXCLUDE_DIR;
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public Filter(File path) { this.EXCLUDE_DIR = path; }
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public boolean accept(File dir, String name) {
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return !dir.equals(EXCLUDE_DIR) && !name.equals(EXCLUDE_NAME);
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}
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}
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
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final plasmaSwitchboard switchboard = (plasmaSwitchboard) env;
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final serverObjects prop = new serverObjects();
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final String action = ((post == null) ? "info" : post.get("action", "info"));
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String pathString = ((post == null) ? "" : post.get("path", "/"));
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// String pathString = ((post == null) ? "" : post.get("path", "/").replaceAll("//", "/")); // where is the BUG ?
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// don't leave the htCachePath
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File file = new File(switchboard.htCachePath, pathString);
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try {
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if (!file.getCanonicalPath().startsWith(switchboard.htCachePath.getCanonicalPath())) {
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pathString = "/";
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file = new File(switchboard.htCachePath, pathString);
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}
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} catch (IOException e) {
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pathString = "/";
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file = new File(switchboard.htCachePath, pathString);
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}
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final StringBuffer path = new StringBuffer(256);
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final StringBuffer tree = new StringBuffer();
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final StringBuffer info = new StringBuffer();
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final yacyURL url = plasmaHTCache.getURL(file);
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String urlstr = "";
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if (action.equals("info") && !file.isDirectory() && url != null) { // normal file
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prop.put("info", TypeFILE);
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// path.append((pathString.length() == 0) ? linkPathString("/", true) : linkPathString(pathString, false));
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linkPathString(prop, ((pathString.length() == 0) ? ("/") : (pathString)), true);
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urlstr = url.toNormalform(true, true);
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prop.put("info_url", urlstr);
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info.ensureCapacity(10000);
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try {
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final IResourceInfo resInfo = plasmaHTCache.loadResourceInfo(url);
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if (resInfo == null) {
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prop.put("info_type", NotCached);
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} else {
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formatHeader(prop, resInfo.getMap());
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final String ff = file.toString();
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final int dotpos = ff.lastIndexOf('.');
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final String ext = (dotpos >= 0) ? ff.substring(dotpos + 1).toLowerCase() : "";
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if (ext.equals("gif") || ext.equals("jpg") ||
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ext.equals("png") || ext.equals("jpeg") ||
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ext.equals("ico") || ext.equals("bmp")) {
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prop.put("info_type", Image);
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prop.put("info_type_src", pathString);
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} else {
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prop.put("info_type", HtmlFile);
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// fill the htmlFilerContentScraper object with the contents of the cached file
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// to retrieve all needed information
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final htmlFilterContentScraper scraper = new htmlFilterContentScraper(url);
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//final OutputStream os = new htmlFilterOutputStream(null, scraper, null, false);
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Writer writer = new htmlFilterWriter(null,null,scraper,null,false);
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String sourceCharset = resInfo.getCharacterEncoding();
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if (sourceCharset == null) sourceCharset = "UTF-8";
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String mimeType = resInfo.getMimeType();
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serverFileUtils.copy(file, sourceCharset, writer);
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writer.close();
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final plasmaParserDocument document = switchboard.parser.transformScraper(url, mimeType, sourceCharset, scraper);
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prop.putHTML("info_type_title", scraper.getTitle());
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int i;
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String[] t = document.getSectionTitles();
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prop.put("info_type_headlines", t.length);
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for (i = 0; i < t.length; i++)
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prop.putHTML("info_type_headlines_" + i + "_headline",
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t[i].replaceAll("\n", "").trim());
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formatAnchor(prop, document.getHyperlinks(), "links");
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formatImageAnchor(prop, document.getImages());
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formatAnchor(prop, document.getAudiolinks(), "audio");
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formatAnchor(prop, document.getVideolinks(), "video");
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formatAnchor(prop, document.getApplinks(), "apps");
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formatAnchor(prop, document.getEmaillinks(), "email");
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prop.putHTML("info_type_text", new String(scraper.getText()));
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i = 0;
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final Iterator sentences = document.getSentences(false);
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if (sentences != null)
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while (sentences.hasNext()) {
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prop.putHTML("info_type_lines_" + i + "_line",
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new String((StringBuffer) sentences.next()).replaceAll("\n", "").trim());
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i++;
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}
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prop.put("info_type_lines", i);
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if (document != null) document.close();
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}
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}
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} catch (IOException e) {
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prop.put("info_type", NotCached);
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} catch (UnsupportedProtocolException e) {
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prop.put("info_type", ProtocolError);
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} catch (IllegalAccessException e) {
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prop.put("info_type", SecurityError);
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}
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} else {
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prop.put("info", TypeDIR);
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File dir;
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if (file.isDirectory()) {
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dir = file;
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} else {
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dir = file.getParentFile();
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pathString = (new File(pathString)).getParent().replace('\\','/');
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}
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// generate sorted dir/file listing
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final String[] list = dir.list(new Filter(switchboard.getConfigPath(plasmaSwitchboard.HTCACHE_PATH, plasmaSwitchboard.HTCACHE_PATH_DEFAULT)));
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tree.ensureCapacity((list == null) ? 70 : (list.length + 1) * 256);
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linkPathString(prop, ((pathString.length() == 0) ? ("/") : (pathString)), true);
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if (list == null) {
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prop.put("info_empty", "1");
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} else {
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prop.put("info_empty", "0");
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final TreeSet dList = new TreeSet();
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final TreeSet fList = new TreeSet();
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int size = list.length - 1, i = size;
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for (; i >= 0 ; i--) { // Rueckwaerts ist schneller
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if (new File(dir, list[i]).isDirectory())
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dList.add(list[i]);
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else
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fList.add(list[i]);
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}
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Iterator iter = dList.iterator();
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i = 0;
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prop.put("info_treeFolders", dList.size());
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while (iter.hasNext()) {
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prop.put("info_treeFolders_" + i + "_path", pathString);
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prop.put("info_treeFolders_" + i + "_name", iter.next().toString());
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i++;
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}
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i = 0;
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iter = fList.iterator();
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prop.put("info_treeFiles", fList.size());
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while (iter.hasNext()) {
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prop.put("info_treeFiles_" + i + "_path", pathString);
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prop.put("info_treeFiles_" + i + "_name", iter.next().toString());
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i++;
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}
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}
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}
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prop.putNum("cachesize", plasmaHTCache.curCacheSize/1024);
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prop.putNum("cachemax", plasmaHTCache.maxCacheSize/1024);
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prop.put("path", path.toString());
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prop.putHTML("info_info", info.toString());
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/* prop.put("info_tree", tree.toString()); */
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// return rewrite properties
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return prop;
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}
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private static void formatHeader(serverObjects prop, Map header) {
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if (header == null) {
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prop.put("info_header", "0");
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} else {
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prop.put("info_header", "1");
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int i = 0;
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final Iterator iter = header.entrySet().iterator();
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Map.Entry entry;
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while (iter.hasNext()) {
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entry = (Map.Entry) iter.next();
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prop.put("info_header_line_" + i + "_property", entry.getKey());
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prop.put("info_header_line_" + i + "_value", entry.getValue());
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i++;
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}
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prop.put("info_header_line", i);
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}
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}
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private static void formatAnchor(serverObjects prop, Map anchor, String extension) {
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final Iterator iter = anchor.entrySet().iterator();
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String descr;
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Map.Entry entry;
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prop.put("info_type_use." + extension + "_" + extension, anchor.size());
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int i = 0;
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while (iter.hasNext()) {
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entry = (Map.Entry) iter.next();
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descr = ((String) entry.getValue()).trim();
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if (descr.length() == 0) { descr = "-"; }
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prop.put("info_type_use." + extension + "_" + extension + "_" + i + "_name",
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de.anomic.data.htmlTools.encodeUnicode2html(descr.replaceAll("\n", "").trim(), true));
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prop.put("info_type_use." + extension + "_" + extension + "_" + i + "_link",
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de.anomic.data.htmlTools.encodeUnicode2html(entry.getKey().toString(), true));
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i++;
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}
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prop.put("info_type_use." + extension, (i == 0) ? 0 : 1);
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}
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private static void formatImageAnchor(serverObjects prop, TreeSet anchor) {
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final Iterator iter = anchor.iterator();
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htmlFilterImageEntry ie;
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prop.put("info_type_use.images_images", anchor.size());
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int i = 0;
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while (iter.hasNext()) {
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ie = (htmlFilterImageEntry) iter.next();
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prop.putHTML("info_type_use.images_images_" + i + "_name", ie.alt().replaceAll("\n", "").trim());
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prop.putHTML("info_type_use.images_images_" + i + "_link",
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de.anomic.data.htmlTools.encodeUnicode2html(ie.url().toNormalform(false, true), false));
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i++;
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}
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prop.put("info_type_use.images", (i == 0) ? "0" : "1");
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}
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private static void linkPathString(serverObjects prop, String path, boolean dir) {
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final String[] elements = path.split("/");
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String dirs = "";
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int i, e, count = 0;
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if (dir) { e = elements.length; } else { e = elements.length - 1; }
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for(i = 0; i < e; i++) {
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if (elements[i].length() == 0) continue;
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prop.putHTML("paths_" + count + "_path", dirs);
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prop.putHTML("paths_" + count + "_name", elements[i]);
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dirs += "/" + elements[i];
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count++;
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}
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prop.put("paths", count);
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return;
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}
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}
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