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yacy_search_server/htroot/Wiki.java

394 lines
16 KiB

// Wiki.java
// -----------------------
// part of the AnomicHTTPD caching proxy
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2004
// last major change: 01.07.2003
//
// 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
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
// Contains contributions from Alexandier Schier [AS]
// you must compile this file with
// javac -classpath .:../classes Wiki.java
// if the shell's current path is HTROOT
import java.util.*;
import java.text.*;
import java.io.*;
import de.anomic.tools.*;
import de.anomic.server.*;
//import de.anomic.yacy.*;
import de.anomic.data.*;
import de.anomic.plasma.*;
import de.anomic.http.*;
public class Wiki {
private static String ListLevel = "";
private static String numListLevel = "";
private static SimpleDateFormat SimpleFormatter = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
public static String dateString(Date date) {
return SimpleFormatter.format(date);
}
public static serverObjects respond(httpHeader header, serverObjects post, serverSwitch env) {
plasmaSwitchboard switchboard = (plasmaSwitchboard) env;
serverObjects prop = new serverObjects();
if (post == null) {
post = new serverObjects();
post.put("page", "start");
}
String pagename = post.get("page", "start");
String ip = post.get("CLIENTIP", "127.0.0.1");
String author = post.get("author", "anonymous");
if (author.equals("anonymous")) {
author = switchboard.wikiDB.guessAuthor(ip);
if (author == null) {
if (de.anomic.yacy.yacyCore.seedDB.mySeed == null)
author = "anonymous";
else
author = de.anomic.yacy.yacyCore.seedDB.mySeed.get("Name", "anonymous");
}
}
if (post.containsKey("submit")) {
// store a new page
switchboard.wikiDB.write(switchboard.wikiDB.newEntry(pagename, author, ip,
post.get("reason", "edit"),
((String) post.get("content", "")).getBytes()));
}
wikiBoard.entry page = switchboard.wikiDB.read(pagename);
if (post.containsKey("edit")) {
// edit the page
try {
prop.put("pagecontent", "");
prop.put("pageedit",
"<form action=\"Wiki.html\" method=\"post\" enctype=\"multipart/form-data\">" +
//"<form action=\"Wiki.html\" method=\"post\" enctype=\"application/x-www-form-urlencoded\">" +
"<p>Author:<br><input name=\"author\" type=\"text\" size=\"80\" maxlength=\"80\" value=\"" + author + "\"></p>" +
"<p>Text:<br><textarea name=\"content\" cols=\"80\" rows=\"24\">" + new String(page.page(), "ISO-8859-1") + "</textarea></p>" +
"<input type=\"hidden\" name=\"page\" value=\"" + pagename + "\">" +
"<input type=\"hidden\" name=\"reason\" value=\"edit\">" +
"<input type=\"submit\" name=\"submit\" value=\"Submit\">" +
"<input type=\"submit\" name=\"view\" value=\"Discard\">" +
"</form>");
} catch (UnsupportedEncodingException e) {}
} else if (post.containsKey("index")) {
// view an index
String index = "<table border=\"0\" cellpadding=\"2\" cellspacing=\"0\">" +
"<tr class=\"TableHeader\"><td>Subject</td><td>Change Date</td><td>Author</td></tr>";
String subject;
try {
Iterator i = switchboard.wikiDB.keys(true);
wikiBoard.entry entry;
while (i.hasNext()) {
subject = (String) i.next();
entry = switchboard.wikiDB.read(subject);
index += "<tr class=\"TableCellLight\">";
index += "<td><a href=\"Wiki.html?page=" + wikiBoard.webalize(subject) + "\">" + subject + "</a></td>";
index += "<td>" + dateString(entry.date()) + "</td>";
index += "<td>" + entry.author() + "</td>";
index += "</tr>";
}
} catch (IOException e) {
index += "IO Error reading wiki database: " + e.getMessage();
}
index += "</table>";
prop.put("pagecontent", index);
prop.put("pageedit",
"<form action=\"Wiki.html\" method=\"post\" enctype=\"multipart/form-data\">" +
"<input type=\"hidden\" name=\"page\" value=\"" + pagename + "\">" +
"<input type=\"button\" name=\"demo\" value=\"Start Page\" onClick=\"self.location.href='Wiki.html'\">" +
"</form>");
} else {
// show page
prop.put("pagecontent",
"<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\">" +
"<tr class=\"TableHeader\" width=\"100%\" ><td height=\"10\" class=\"TableHeader\" class=\"black\"><font size=\"1\">&nbsp;<b>" +
"yacyWiki page: " + pagename + ",&nbsp;&nbsp;&nbsp;last edited by " + page.author() + ",&nbsp;&nbsp;&nbsp;change date " + dateString(page.date()) +
"</b></font></td></tr>" +
"<tr class=\"WikiBackground\"><td>" +
"<table width=\"100%\" border=\"0\" cellpadding=\"5\" cellspacing=\"0\"><tr><td>" +
transform(page.page(), switchboard) +
"</td></tr></table>" +
"</td></tr></table>");
prop.put("pageedit",
"<form action=\"Wiki.html\" method=\"get\">" +
"<input type=\"hidden\" name=\"page\" value=\"" + pagename + "\">" +
"<input type=\"button\" name=\"demo\" value=\"Start Page\" onClick=\"self.location.href='Wiki.html'\">" +
"<input type=\"submit\" name=\"index\" value=\"Index\">" +
"<input type=\"submit\" name=\"edit\" value=\"Edit\">" +
"</form>");
}
// return rewrite properties
return prop;
}
public static String transform(byte[] content, plasmaSwitchboard switchboard) {
ByteArrayInputStream bais = new ByteArrayInputStream(content);
BufferedReader br = new BufferedReader(new InputStreamReader(bais));
String line;
String out = "";
try {
while ((line = br.readLine()) != null) {
out += transformLine(new String(line), switchboard) + serverCore.crlfString;
}
return out;
} catch (IOException e) {
return "internal error: " + e.getMessage();
}
}
public static String transformLine(String result, plasmaSwitchboard switchboard) {
// transform page
int p0, p1;
// avoide html inside
//p0 = 0; while ((p0 = result.indexOf("&", p0+1)) >= 0) result = result.substring(0, p0) + "&amp;" + result.substring(p0 + 1);
p0 = 0; while ((p0 = result.indexOf('"', p0+1)) >= 0) result = result.substring(0, p0) + "&quot;" + result.substring(p0 + 1);
p0 = 0; while ((p0 = result.indexOf("<", p0+1)) >= 0) result = result.substring(0, p0) + "&lt;" + result.substring(p0 + 1);
p0 = 0; while ((p0 = result.indexOf(">", p0+1)) >= 0) result = result.substring(0, p0) + "&gt;" + result.substring(p0 + 1);
//p0 = 0; while ((p0 = result.indexOf("*", p0+1)) >= 0) result = result.substring(0, p0) + "&#149;" + result.substring(p0 + 1);
p0 = 0; while ((p0 = result.indexOf("(C)", p0+1)) >= 0) result = result.substring(0, p0) + "&copy;" + result.substring(p0 + 3);
// format lines
if (result.startsWith(" ")) result = "<tt>" + result + "</tt>";
if (result.startsWith("----")) result = "<hr>";
// format headers
if ((p0 = result.indexOf("====")) >= 0) {
p1 = result.indexOf("====", p0 + 4);
if (p1 >= 0) result = result.substring(0, p0) + "<h4>" +
result.substring(p0 + 4, p1) + "</h4>" +
result.substring(p1 + 4);
}
if ((p0 = result.indexOf("===")) >= 0) {
p1 = result.indexOf("===", p0 + 3);
if (p1 >= 0) result = result.substring(0, p0) + "<h3>" +
result.substring(p0 + 3, p1) + "</h3>" +
result.substring(p1 + 3);
}
if ((p0 = result.indexOf("==")) >= 0) {
p1 = result.indexOf("==", p0 + 2);
if (p1 >= 0) result = result.substring(0, p0) + "<h2>" +
result.substring(p0 + 2, p1) + "</h2>" +
result.substring(p1 + 2);
}
if ((p0 = result.indexOf("''''")) >= 0) {
p1 = result.indexOf("''''", p0 + 4);
if (p1 >= 0) result = result.substring(0, p0) + "<b><i>" +
result.substring(p0 + 4, p1) + "</i></b>" +
result.substring(p1 + 4);
}
if ((p0 = result.indexOf("'''")) >= 0) {
p1 = result.indexOf("'''", p0 + 3);
if (p1 >= 0) result = result.substring(0, p0) + "<b>" +
result.substring(p0 + 3, p1) + "</b>" +
result.substring(p1 + 3);
}
if ((p0 = result.indexOf("''")) >= 0) {
p1 = result.indexOf("''", p0 + 2);
if (p1 >= 0) result = result.substring(0, p0) + "<i>" +
result.substring(p0 + 2, p1) + "</i>" +
result.substring(p1 + 2);
}
//* unorderd Lists contributed by [AS]
//** Sublist
if(result.startsWith(ListLevel + "*")){ //more stars
p0 = result.indexOf(ListLevel);
p1 = result.length();
result = "<ul>" + serverCore.crlfString +
"<li>" +
result.substring(ListLevel.length() + 1, p1) +
"</li>";
ListLevel += "*";
}else if(ListLevel.length() > 0 && result.startsWith(ListLevel)){ //equal number of stars
p0 = result.indexOf(ListLevel);
p1 = result.length();
result = "<li>" +
result.substring(ListLevel.length(), p1) +
"</li>";
}else if(ListLevel.length() > 0){ //less stars
int i = ListLevel.length();
String tmp = "";
while(! result.startsWith(ListLevel.substring(0,i)) ){
tmp += "</ul>";
i--;
}
ListLevel = ListLevel.substring(0,i);
p0 = ListLevel.length();
p1 = result.length();
if(ListLevel.length() > 0){
result = tmp +
"<li>" +
result.substring(p0, p1) +
"</li>";
}else{
result = tmp + result.substring(p0, p1);
}
}
//# sorted Lists contributed by [AS]
//## Sublist
if(result.startsWith(numListLevel + "#")){ //more #
p0 = result.indexOf(numListLevel);
p1 = result.length();
result = "<ol>" + serverCore.crlfString +
"<li>" +
result.substring(numListLevel.length() + 1, p1) +
"</li>";
numListLevel += "#";
}else if(numListLevel.length() > 0 && result.startsWith(numListLevel)){ //equal number of #
p0 = result.indexOf(numListLevel);
p1 = result.length();
result = "<li>" +
result.substring(numListLevel.length(), p1) +
"</li>";
}else if(numListLevel.length() > 0){ //less #
int i = numListLevel.length();
String tmp = "";
while(! result.startsWith(numListLevel.substring(0,i)) ){
tmp += "</ol>";
i--;
}
numListLevel = numListLevel.substring(0,i);
p0 = numListLevel.length();
p1 = result.length();
if(numListLevel.length() > 0){
result = tmp +
"<li>" +
result.substring(p0, p1) +
"</li>";
}else{
result = tmp + result.substring(p0, p1);
}
}
// end contrib [AS]
// create links
String kl, kv;
int p;
// internal links
while ((p0 = result.indexOf("[[")) >= 0) {
p1 = result.indexOf("]]", p0 + 2);
if (p1 <= p0) break; else; {
kl = result.substring(p0 + 2, p1);
if ((p = kl.indexOf("|")) > 0) {
kv = kl.substring(p + 1);
kl = kl.substring(0, p);
} else {
kv = kl;
}
if (switchboard.wikiDB.read(kl) != null)
result = result.substring(0, p0) +
"<a class=\"known\" href=\"Wiki.html?page=" + kl + "\">" + kv + "</a>" +
result.substring(p1 + 2);
else
result = result.substring(0, p0) +
"<a class=\"unknown\" href=\"Wiki.html?page=" + kl + "&edit=Edit\">" + kv + "</a>" +
result.substring(p1 + 2);
}
}
// external links
while ((p0 = result.indexOf("[")) >= 0) {
p1 = result.indexOf("]", p0 + 1);
if (p1 <= p0) break; else {
kl = result.substring(p0 + 1, p1);
if ((p = kl.indexOf(" ")) > 0) {
kv = kl.substring(p + 1);
kl = kl.substring(0, p);
} else {
kv = kl;
}
if (!(kl.startsWith("http://"))) kl = "http://" + kl;
result = result.substring(0, p0) +
"<a class=\"extern\" href=\"" + kl + "\">" + kv + "</a>" +
result.substring(p1 + 1);
}
}
if (result.endsWith("</li>")) return result; else return result + "<br>";
}
/*
what we need:
== New section ==
=== Subsection ===
==== Sub-subsection ====
link colours: existent=green, non-existent=red
----
[[wikipedia FAQ|answers]] (first element is wiki page name, second is link print name)
[http://www.nupedia.com Nupedia] (external link)
[http://www.nupedia.com] (un-named external link)
''Emphasize'', '''strongly''', '''''very strongly''''' (italics, bold, bold-italics)
* Lists are easy to do:
** start every line with a star
*** more stars means deeper levels
# Numbered lists are also good
## very organized
## easy to follow
; Definition list : list of definitions
; item : the item's definition
: A colon indents a line or paragraph.
A manual newline starts a new paragraph.
A picture: [[Image:Wiki.png]]
[[Image:Wiki.png|right|jigsaw globe]] (floating right-side with caption)
*/
}