<?php
// phpODP.inc - v 1.0UF2 (unfinished release 2) - PHP Class phpODP for use with ODP (dmoz.org) data retrieval
// Copyright (c) 2000, Ryan Heggem.
// URL: http://www.gren.addr.com/
// EMAIL: gren@addr.com
//
// A readme for this class can be found at:
// http://www.gren.addr.com/scripts/PHP/phpODP/README.html
//
// A demo of what this class can do can be found at:
// http://www.gren.addr.com/scripts/PHP/phpODP/demo/
//
// Released under the GNU GPL.
// http://www.gnu.org/copyleft/gpl.html
//
// 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.
class phpODP {
function _init() {
global $SERVER_NAME, $SCRIPT_NAME, $PATH_INFO, $PHP_SELF;
if(empty($PATH_INFO)){
header('Location: http://' . $SERVER_NAME . '' . $SCRIPT_NAME . '/');
}
// misc stuff...
$this->dirs = explode('/', preg_replace('|^/(.*)/$|', '\1', $PATH_INFO));
// spit out each section of a dmoz.org catagory into an array
// TODO #1:
$this->contents = explode('<hr>', implode('', file('http://dmoz.org' . $PATH_INFO) ) );
// get page title
eregi('<title>(.*)</title>', $this->contents[0], $tmp_page_title);
$this->page_title = $tmp_page_title[1];
// check for description and faq files, then set up links to them
$this->desc_file = (preg_match('|desc.html|i', $this->contents[0])) ? ' <a href="http://dmoz.org' . $PATH_INFO . 'desc.html">Description</a> ' : '';
$this->faq_file = (preg_match('|faq.html|i', $this->contents[0])) ? ' <a href="http://dmoz.org' . $PATH_INFO . 'faq.html">FAQ</a> ' : '';
// check for an A-Z catagory listing, then set up links to each one
$a2zA = explode(',', strtoupper('a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z'));
if(preg_match('|/[A-Z]/|i', $this->contents[0])){
for($z=0;$z<=25;$z++){
$sfx = ($z != 25) ? ' / ' : '';
$this->a2z .= '<a href="' . $PHP_SELF . $a2zA[$z] . '/">' . $a2zA[$z] . '</a>' . $sfx;
}
} else{ $this->a2z = ''; }
// this chunk of code...
// goes through each array element of $contents to see what's what
// replaces all the dmoz.org relative links with a local version
// sets a <font> tag in <td> tags to make the text in them look nice
// sets <img> tags to point to dmoz.org
if(preg_match('|href="/|i', $this->contents[1])){
$this->catagories = preg_replace('|href="/(.*)"|im', 'href="' . $SCRIPT_NAME . '/\1"', preg_replace('|(<td valign=top>)|im', '\1<font face="Arial, Helvetica" size="2">', preg_replace('|(</td>)|im', '</font>\1', $this->contents[1])));
if(preg_match('|href="/|i', $this->contents[2])){
$this->other_catagories = preg_replace('|href="/(.*)"|im', 'href="' . $SCRIPT_NAME . '/\1"', preg_replace('|(<td valign=top>)|im', '\1<font face="Arial, Helvetica" size="2">', preg_replace('|(</td>)|im', '</font>\1', $this->contents[2])));
if(preg_match('|<li><a href="http://|i', $this->contents[3])){
$this->links = preg_replace('|src="/(.*)"|im', 'src="http://dmoz.org/\1"', $this->contents[3]);
} else{ $this->links = ''; }
} elseif(preg_match('|<li><a href="http://|i', $this->contents[2])){
$this->links = preg_replace('|src="/(.*)"|im', 'src="http://dmoz.org/\1"', $this->contents[2]);
} else{ $this->other_catagories = ''; $this->links = ''; }
} elseif(preg_match('|<li><a href="http://|i', $this->contents[1])){
$this->links = preg_replace('|src="/(.*)"|im', 'src="http://dmoz.org/\1"', $this->contents[1]);
} else{ $this->catagories = ''; $this->other_catagories = ''; $this->links = ''; }
}
function odp2rss() {
global $SERVER_NAME, $SCRIPT_NAME, $PATH_INFO;
$links_arr = explode('<li>',$this->links);
$this->rss = "<?xml version="1.0" encoding="US-ASCII"?>n";
$this->rss .= "<!DOCTYPE rss PUBLIC "-//Netscape Communications//DTD RSS 0.91//EN"n";
$this->rss .= "t"http://my.netscape.com/publish/formats/rss-0.91.dtd">nn";
$this->rss .= "<rss version="0.91">nn";
$this->rss .= "<channel>n";
$this->rss .= "t<title>$this->page_title</title>n";
$this->rss .= "t<link>$SERVER_NAME$SCRIPT_NAME$PATH_INFO</link>n";
$this->rss .= "t<description>$this->page_title</description>n";
$this->rss .= "t<language>en-us</language>nn";
for($i=1;$i<=(count($links_arr)-1);$i++){
if(!preg_match('/<img/i',$links_arr[$i])){
preg_replace('/(<ul>|</ul>|<p>|<img.*">|n|r| )/i','',$links_arr[$i]);
preg_match('/^.*href="(.*)">(.*)</a>s+-s+(.*)$/im',$links_arr[$i],$items);
$this->rss .= "t<item>n";
$this->rss .= "tt<title>$items[2]</title>n";
$this->rss .= "tt<link>$items[1]</link>n";
$this->rss .= "tt<description>$items[3]</description>n";
$this->rss .= "t</item>nn";
}
}
$this->rss .= "</channel>nn";
$this->rss .= "</rss>n";
}
}
?>
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