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141 lines
6.9 KiB
141 lines
6.9 KiB
// Collage.java
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// -----------------------
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// part of YaCy
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// (C) by Detlef Reichl; detlef!reichl()gmx!org
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// Pforzheim, Germany, 2008
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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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import java.util.Random;
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import de.anomic.crawler.ResultImages;
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import de.anomic.http.httpHeader;
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import de.anomic.plasma.plasmaSwitchboard;
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import de.anomic.server.serverCore;
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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 Collage {
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private static int fifoMax = 20;
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private static int fifoPos = -1;
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private static int fifoSize = 0;
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private static long zIndex = 0;
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private static ResultImages.OriginEntry origins[] = new ResultImages.OriginEntry[fifoMax];
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private static Integer imgWidth[] = new Integer[fifoMax];
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private static Integer imgHeight[] = new Integer[fifoMax];
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private static Integer imgPosX[] = new Integer[fifoMax];
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private static Integer imgPosY[] = new Integer[fifoMax];
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private static long imgZIndex[] = new long[fifoMax];
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private static final Random rand = new Random();
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public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch<?> env) {
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final serverObjects prop = new serverObjects();
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final plasmaSwitchboard sb = (plasmaSwitchboard) env;
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final boolean authenticated = sb.verifyAuthentication(header, false);
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ResultImages.OriginEntry nextOrigin = ResultImages.next(!authenticated);
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int posXMax = 800;
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int posYMax = 500;
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boolean embed = false;
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if (post != null) {
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embed = post.containsKey("emb");
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posXMax = post.getInt("width", posXMax);
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posYMax = post.getInt("height", posYMax);
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if (post.containsKey("max")) fifoMax = post.getInt("max", fifoMax);
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}
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prop.put("emb", (embed) ? "0" : "1");
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if (nextOrigin != null) {
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System.out.println("NEXTORIGIN=" + nextOrigin.imageEntry.url().toNormalform(true, false));
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if (fifoSize == 0 || origins[fifoPos] != nextOrigin) {
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fifoPos = fifoPos + 1 >= fifoMax ? 0 : fifoPos + 1;
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fifoSize = fifoSize + 1 > fifoMax ? fifoMax : fifoSize + 1;
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origins[fifoPos] = nextOrigin;
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float scale = rand.nextFloat() * 1.5f + 1;
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imgWidth[fifoPos] = (int) ((nextOrigin.imageEntry.width()) / scale);
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imgHeight[fifoPos] = (int) ((nextOrigin.imageEntry.height()) / scale);
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imgPosX[fifoPos] = rand.nextInt((imgWidth[fifoPos] == 0) ? posXMax / 2 : Math.max(1, posXMax - imgWidth[fifoPos]));
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imgPosY[fifoPos] = rand.nextInt((imgHeight[fifoPos] == 0) ? posYMax / 2 : Math.max(1, posYMax - imgHeight[fifoPos]));
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imgZIndex[fifoPos] = zIndex;
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zIndex += 1;
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}
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}
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if (fifoSize > 0) {
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prop.put("imgurl", "1");
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int c = 0;
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int yOffset = embed ? 0 : 70;
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for (int i = 0; i < fifoSize; i++) {
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yacyURL baseURL = origins[i].baseURL;
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yacyURL imageURL = origins[i].imageEntry.url();
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// check if this loads a page from localhost, which must be prevented to protect the server
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// against attacks to the administration interface when localhost access is granted
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if ((serverCore.isLocalhost(baseURL.getHost()) || serverCore.isLocalhost(imageURL.getHost())) &&
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sb.getConfigBool("adminAccountForLocalhost", false)) continue;
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long z = imgZIndex[i];
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prop.put("imgurl_list_" + c + "_url",
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"<a href=\"" + baseURL.toNormalform(true, false) + "\">"
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+ "<img src=\"" + imageURL.toNormalform(true, false) + "\" "
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+ "style=\""
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+ ((imgWidth[i] == 0 || imgHeight[i] == 0) ? "" : "width:" + imgWidth[i] + "px;height:" + imgHeight[i] + "px;")
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+ "position:absolute;top:" + (imgPosY[i] + yOffset)
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+ "px;left:" + imgPosX[i]
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+ "px;z-index:" + z + "\" "
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+ "id=\"col" + z + "\" "
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+ "onmouseover=\"raise(" + z + ")\" onmouseout=\"lower(" + z + ")\" "
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+ "title=\"" + baseURL.toNormalform(true, false) + "\">"
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+ "</a><br>");
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c++;
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}
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prop.put("imgurl_list", c);
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} else {
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prop.put("imgurl", "0");
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}
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prop.putNum("refresh", Math.max(2, Math.min(5, 500 / (1 + ResultImages.queueSize(!authenticated)))));
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prop.put("emb_privateQueueSize", ResultImages.privateQueueHighSize() + "+" + ResultImages.privateQueueLowSize());
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prop.put("emb_publicQueueSize", ResultImages.publicQueueHighSize() + "+" + ResultImages.publicQueueLowSize());
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return prop;
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}
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}
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