* Replaced the RDF support (rdf.php) with a newer version (backend.php).
The new version is a generic framework that has everything ready to add support RSS and XML backends in a 100% transparant way. It's a flexible framework. Other changes include: better coding, improved robustness and readability. * RSS and XML support will be integrated in near future. * Cache-invalidation is set to 30 minutes.3-00
Dries Buytaert
parent
6590fec2e0
commit
70d7a06c70
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@ -7,7 +7,6 @@ function navigation() {
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}
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function validateAccount($uname, $email) {
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### Verify username and e-mail address:
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if ((!$email) || ($email=="") || (strrpos($uname,' ') > 0) || (!eregi("^[_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,3}$", $email))) $rval = "the specified e-mail address is not valid.<BR>";
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if ((!$uname) || ($uname=="") || (ereg("[^a-zA-Z0-9_-]",$uname))) $rval = "the specified username '$uname' is not valid.<BR>";
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@ -319,7 +318,7 @@ function user_edit_home() {
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<P>
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<B>Theme:</B><BR>
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<SELECT NAME="theme">
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<SELECT NAME="thm">
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<?php
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include "themes/list.php";
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$themelist = explode(" ", $themelist);
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@ -351,7 +350,7 @@ function user_edit_home() {
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$theme->footer();
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}
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function user_save_home($uid, $uname, $storynum, $theme, $ublockon, $ublock) {
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function user_save_home($uid, $uname, $storynum, $thm, $ublockon, $ublock) {
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global $user, $userinfo;
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include "functions.inc";
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dbconnect();
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@ -362,7 +361,7 @@ function user_save_home($uid, $uname, $storynum, $theme, $ublockon, $ublock) {
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getusrinfo($user);
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mysql_query("UNLOCK TABLES");
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docookie($userinfo[uid],$userinfo[uname],$userinfo[pass],$userinfo[storynum],$userinfo[umode],$userinfo[uorder],$userinfo[thold],$userinfo[noscore],$userinfo[ublockon],$userinfo[theme]);
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Header("Location: account.php?theme=$theme");
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Header("Location: account.php?theme=$thm");
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}
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function user_edit_comm() {
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@ -472,7 +471,7 @@ switch($op) {
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user_edit_home();
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break;
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case "Save homepage settings":
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user_save_home($uid, $uname, $storynum, $theme, $ublockon, $ublock);
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user_save_home($uid, $uname, $storynum, $thm, $ublockon, $ublock);
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userinfo($uname);
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break;
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case "editcomm":
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@ -0,0 +1,256 @@
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<?
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include "functions.inc";
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class backend {
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// Channel properties:
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var $id;
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var $url;
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var $site;
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var $file;
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var $contact;
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var $timestamp;
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// Contains the raw rdf/rss/xml file:
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var $data;
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// Contains the parsed rdf/rss/xml file:
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var $headlines = array(); // latest headlines
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#####
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# Syntax.......: backend(...);
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# Description..: Constructor - initializes the internal variables.
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#
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function backend($id, $site, $url, $file, $contact, $timout = 1800) {
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### Connect to database:
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dbconnect();
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### Get channel info:
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$result = mysql_query("SELECT * FROM channel WHERE id = '$id' OR site = '$site'");
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if ($channel = mysql_fetch_object($result)) {
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### Initialize internal variables:
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$this->id = $channel->id;
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$this->site = $channel->site;
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$this->file = $channel->file;
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$this->url = $channel->url;
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$this->contact = $channel->contact;
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$this->timestamp = $channel->timestamp;
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### Check to see whether we have to update our headlines first:
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if (time() - $this->timestamp > $timout) $this->url2sql();
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### Read headlines:
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$result = mysql_query("SELECT * FROM headlines WHERE id = $this->id ORDER BY number");
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while ($headline = mysql_fetch_object($result)) {
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array_push($this->headlines, "<A HREF=\"$headline->link\">$headline->title</A>");
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}
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}
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else {
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$this->site = $site;
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$this->url = $url;
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$this->file = $file;
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$this->contact = $contact;
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}
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}
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#####
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# Syntax.......: rdf2sql(optional timout value in seconds);
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# Description..: Reads a RDF file from a server, parses it and inserts
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# the fresh data in a MySQL table.
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#
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function rdf2sql($timout = 10) {
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if ($this->file) {
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### Decode URL:
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$url = parse_url($this->file);
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$host = $url[host];
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$port = $url[port] ? $url[port] : 80;
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$path = $url[path];
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// print "<PRE>$url - $host - $port - $path</PRE>";
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### Retrieve data from website:
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$fp = fsockopen($host, $port, &$errno, &$errstr, $timout);
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if ($fp) {
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### Get data from URL:
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fputs($fp, "GET $path HTTP/1.0\n");
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fputs($fp, "User-Agent: headline grabber\n");
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fputs($fp, "Host: ". $host ."\n");
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fputs($fp, "Accept: */*\n\n");
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while(!feof($fp)) $data .= fgets($fp, 128);
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// print "<PRE>$data</PRE><HR>";
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if (strstr($data, "200 OK")) {
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### Remove existing entries:
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$result = mysql_query("DELETE FROM headlines WHERE id = $this->id");
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### Strip all 'junk':
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$data = ereg_replace("<?xml.*/image>", "", $data);
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$data = ereg_replace("</rdf.*", "", $data);
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$data = chop($data);
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### Iterating through our data processing each entry/item:
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$items = explode("</item>", $data);
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$number = 0;
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for (reset($items); $item = current($items); next($items)) {
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### Extract data:
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$link = ereg_replace(".*<link>", "", $item);
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$link = ereg_replace("</link>.*", "", $link);
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$title = ereg_replace(".*<title>", "", $item);
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$title = ereg_replace("</title>.*", "", $title);
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### Clean headlines:
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$title = stripslashes(fixquotes($title));
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### Count the number of stories:
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$number += 1;
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### Insert item in database:
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$result = mysql_query("INSERT INTO headlines (id, title, link, number) VALUES('$this->id', '$title', '$link', '$number')");
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}
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### Mark channels as being updated:
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$result = mysql_query("UPDATE channel SET timestamp = '". time() ."' WHERE id = $this->id");
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$this->timestamp = time();
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}
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else print "<HR>RDF parser: 404 error?<BR><BR><PRE>$data</PRE><HR>";
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}
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}
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}
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#####
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# Syntax.......: rss2sql(optional timout value in seconds);
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# Description..: Reads a RSS file from a server, parses it and inserts
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# the fresh data in a MySQL table.
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#
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function rss2sql($timout = 10) {
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print "backend->rss2sql : TODO<BR>";
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}
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#####
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# Syntax.......: xml2sql(optional timout value in seconds);
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# Description..: Reads a XML file from a server, parses it and inserts
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# the fresh data in a MySQL table.
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#
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function xml2sql($timout = 10) {
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print "backend->xml2sql : TODO<BR>";
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}
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#####
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# Syntax.......: url2sql(optional timout value in seconds);
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# Description..: Generic function to fetch fresh headlines. It checks whether
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# we are dealing with a remote RDF, RSS or XML file and calls
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# the appropriate function to fetch the headline. The function
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# is an abstraction towards the programmer as he doesn't need
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# to know with what file extension we are dealing.
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#
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function url2sql($timout = 10) {
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if (strstr($this->file, ".rdf")) $this->rdf2sql($timout);
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if (strstr($this->file, ".rss")) $this->rss2sql($timout);
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if (strstr($this->file, ".xml")) $this->xml2sql($timout);
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}
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#####
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# Syntax.......:
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# Description..:
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#
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function displayHeadlines($timout = 1800) {
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global $theme;
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### Connect to database:
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dbconnect();
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### Get channel info:
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$result = mysql_query("SELECT * FROM channel WHERE site = '$this->site'");
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if ($this->id) {
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### Check to see whether we have to update our headlines first:
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if (time() - $this->timestamp > $timout) $this->url2sql();
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### Grab headlines from database:
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$result = mysql_query("SELECT * FROM headlines WHERE id = $this->id ORDER BY number");
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while ($headline = mysql_fetch_object($result)) {
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$content .= "<LI><A HREF=\"$headline->link\">$headline->title</A></LI>";
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}
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### Add timestamp:
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$update = round((time() - $this->timestamp) / 60);
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$content .= "<P ALIGN=\"right\">[ <A HREF=\"backend.php?op=reset&site=$this->site\"><FONT COLOR=\"$theme->hlcolor2\">reset</FONT></A> | updated $update min. ago ]</P>";
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### Display box:
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$theme->box("$this->site", $content);
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}
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else print "<P>Warning: something whiched happened: specified channel could not be found in database.</P>";
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}
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#####
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# Syntax.......: add()
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# Description..: Adds this backend to the database.
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#
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function add() {
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### Connect to database:
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dbconnect();
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### Add channel:
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$result = mysql_query("INSERT INTO channel (site, file, url, contact, timestamp) VALUES ('$this->site', '$this->file', '$this->url', '$this->contact', 42)");
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}
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#####
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# Syntax.......: delete()
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# Description..: Deletes this backend
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#
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function delete() {
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### Connect to database:
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dbconnect();
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### Delete channel:
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$result = mysql_query("DELETE FROM channel WHERE id = $this->id");
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### Delete headlines:
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$result = mysql_query("DELETE FROM headlines WHERE id = $this->id");
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}
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#####
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# Syntax.......: refresh()
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# Description..: Deletes all headlines associated with this backend.
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#
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function refresh() {
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### Connect to database:
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dbconnect();
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### Delete headlines:
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$result = mysql_query("DELETE FROM headlines WHERE id = $this->id");
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### Mark channel as invalid to enforce an update:
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$result = mysql_query("UPDATE channel SET timestamp = 42 WHERE id = $this->id");
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}
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#####
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# Syntax.......: dump()
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# Description..: Dumps the content of this class to screen.
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#
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function dump() {
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print "<B>Dump backend:</B><BR>";
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print "Id: $this->id<BR>";
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print "Site: $this->site<BR>";
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print "URL: $this->url<BR>";
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print "File: $this->file<BR>";
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print "Contact: $this->contact<BR>";
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}
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}
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?>
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@ -0,0 +1,130 @@
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<?
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include "theme.inc";
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include "backend.class.php";
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function adminAddChannel() {
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?>
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<HR>
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<FORM ACTION="backend.php" METHOD="post">
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<P>
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<B>Site name:</B><BR>
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<INPUT TYPE="text" NAME="site" SIZE="50">
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</P>
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<P>
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<B>URL:</B><BR>
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<INPUT TYPE="text" NAME="url" SIZE="50">
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</P>
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<P>
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<B>Backend file:</B><BR>
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<INPUT TYPE="text" NAME="file" SIZE="50">
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</P>
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<P>
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<B>Contact information:</B><BR>
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<INPUT TYPE="text" NAME="contact" SIZE="50">
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</P>
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<INPUT TYPE="submit" NAME="op" VALUE="Add backend">
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</FORM>
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<?
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}
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function displayAll() {
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global $theme;
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### Connect to database:
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dbconnect();
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### Get channel info:
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$result = mysql_query("SELECT * FROM channel ORDER BY id");
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print "<HR>";
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print "<TABLE BORDER=\"0\">";
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while ($channel = mysql_fetch_object($result)) {
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if ($state % 3 == 0) print " <TR>";
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print " <TD ALIGN=\"center\" VALIGN=\"top\" WIDTH=\"33%\">";
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### Load backend from database:
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$backend = new backend($channel->id);
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### Read headlines from backend class:
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$content = "";
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for (reset($backend->headlines); $headline = current($backend->headlines); next($backend->headlines)) {
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$content .= "<LI>$headline</LI>";
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}
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### Print backend box to screen:
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$theme->box($backend->site, "$content<P ALIGN=\"right\">[ <A HREF=\"$backend->url\">more</A> ]");
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print " </TD>";
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if ($state % 3 == 2) print " </TR>";
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$state += 1;
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}
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print "</TABLE>";
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}
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function adminMain() {
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global $theme, $PHP_SELF;
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### Connect to database:
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dbconnect();
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### Get channel info:
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$result = mysql_query("SELECT * FROM channel ORDER BY id");
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print "<TABLE BORDER=\"0\" WIDTH=\"100%\" CELLSPACING=\"2\" CELLPADDING=\"4\">";
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print "
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<TR BGCOLOR=\"$theme->bgcolor1\"><TD ALIGN=\"center\"><B><FONT COLOR=\"$theme->fgcolor1\">Site</FONT></B></TD><TD ALIGN=\"center\"><B><FONT COLOR=\"$theme->fgcolor1\">Contact</FONT></B></TD><TD ALIGN=\"center\"><B><FONT COLOR=\"$theme->fgcolor1\">Last updated</FONT></B></TD><TD ALIGN=\"center\" COLSPAN=\"2\"><B><FONT COLOR=\"$theme->fgcolor1\">Operations</FONT></B></TD></TR>";
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while ($channel = mysql_fetch_object($result)) {
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### Load backend from database:
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$backend = new backend($channel->id);
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print "<TR BGCOLOR=\"$theme->bgcolor2\">";
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print " <TD><A HREF=\"$backend->url\">$backend->site</A></TD>";
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print " <TD><A HREF=\"mailto:$backend->contact\">$backend->contact</A></TD>";
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print " <TD ALIGN=\"center\">". round((time() - $backend->timestamp) / 60) ." min. ago</TD>";
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print " <TD ALIGN=\"center\"><A HREF=\"$PHP_SELF?op=refresh&id=$backend->id\">refresh</A></TD>";
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print " <TD ALIGN=\"center\"><A HREF=\"$PHP_SELF?op=delete&id=$backend->id\">delete</A></TD>";
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print "</TR>";
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}
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print "</TABLE>";
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print "<BR><BR>";
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}
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$theme->header();
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switch($op) {
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case "refresh":
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$backend = new backend($id);
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$backend->refresh();
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adminMain();
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displayAll();
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adminAddChannel();
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break;
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case "delete":
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print "ID = $id<BR>";
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$backend = new backend($id);
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$backend->dump();
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$backend->delete();
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adminMain();
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displayAll();
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adminAddChannel();
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break;
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case "Add backend":
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$backend = new backend($id, $site, $url, $file, $contact);
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$backend->add();
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// fall through:
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default:
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adminMain();
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displayAll();
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adminAddChannel();
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}
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$theme->footer();
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?>
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16
mysql.tables
16
mysql.tables
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@ -1,3 +1,14 @@
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DROP TABLE authors;
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DROP TABLE stories;
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DROP TABLE blocks;
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DROP TABLE channel;
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DROP TABLE comments;
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DROP TABLE headlines;
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DROP TABLE poll;
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DROP TABLE queue;
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DROP TABLE users;
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DROP TABLE webboard;
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# MySQL dump 7.1
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#
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# Host: zind.net Database: dries
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@ -48,12 +59,13 @@ INSERT INTO blocks VALUES (1,'','Development','<P>These links point to pages or
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CREATE TABLE channel (
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id int(11) DEFAULT '0' NOT NULL auto_increment,
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site varchar(255) DEFAULT '' NOT NULL,
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file varchar(255) DEFAULT '' NOT NULL,
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url varchar(255) DEFAULT '' NOT NULL,
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rdf varchar(255) DEFAULT '' NOT NULL,
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contact varchar(255) DEFAULT '',
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timestamp int(11),
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UNIQUE site (site),
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UNIQUE file (file),
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UNIQUE url (url),
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UNIQUE rdf (rdf),
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PRIMARY KEY (id)
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);
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250
rdf.php
250
rdf.php
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@ -1,250 +0,0 @@
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<?
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include "functions.inc";
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include "theme.inc";
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class rdf {
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// Contains the raw rdf file:
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var $data;
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// Contains the parsed rdf file:
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var $title; // website name
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var $items; // latest headlines
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||||
|
||||
function url2sql($site, $timout = 10) {
|
||||
### Connect to database:
|
||||
dbconnect();
|
||||
|
||||
### Get channel info:
|
||||
$result = mysql_query("SELECT * FROM channel WHERE site = '$site'");
|
||||
|
||||
if ($channel = mysql_fetch_object($result)) {
|
||||
### Decode URL:
|
||||
$url = parse_url($channel->rdf);
|
||||
$host = $url[host];
|
||||
$port = $url[port] ? $url[port] : 80;
|
||||
$path = $url[path];
|
||||
|
||||
// print "<PRE>$url - $host - $port - $path</PRE>";
|
||||
|
||||
### Retrieve data from website:
|
||||
$fp = fsockopen($host, $port, &$errno, &$errstr, $timout);
|
||||
|
||||
if ($fp) {
|
||||
### Get data from URL:
|
||||
fputs($fp, "GET $path HTTP/1.0\n");
|
||||
fputs($fp, "User-Agent: headline grabber\n");
|
||||
fputs($fp, "Host: ". $host ."\n");
|
||||
fputs($fp, "Accept: */*\n\n");
|
||||
|
||||
while(!feof($fp)) $data .= fgets($fp, 128);
|
||||
|
||||
// print "<PRE>$data</PRE><HR>";
|
||||
|
||||
if (strstr($data, "200 OK")) {
|
||||
|
||||
### Remove existing entries:
|
||||
$result = mysql_query("DELETE FROM headlines WHERE id = $channel->id");
|
||||
|
||||
### Strip all 'junk':
|
||||
$data = ereg_replace("<?xml.*/image>", "", $data);
|
||||
$data = ereg_replace("</rdf.*", "", $data);
|
||||
$data = chop($data);
|
||||
|
||||
### Iterating through our data processing each entry/item:
|
||||
$items = explode("</item>", $data);
|
||||
$number = 0;
|
||||
|
||||
for (reset($items); $item = current($items); next($items)) {
|
||||
### Extract data:
|
||||
$link = ereg_replace(".*<link>", "", $item);
|
||||
$link = ereg_replace("</link>.*", "", $link);
|
||||
$title = ereg_replace(".*<title>", "", $item);
|
||||
$title = ereg_replace("</title>.*", "", $title);
|
||||
|
||||
### Clean headlines:
|
||||
$title = stripslashes(fixquotes($title));
|
||||
|
||||
### Count the number of stories:
|
||||
$number += 1;
|
||||
|
||||
### Insert item in database:
|
||||
$result = mysql_query("INSERT INTO headlines (id, title, link, number) VALUES('$channel->id', '$title', '$link', '$number')");
|
||||
}
|
||||
|
||||
### Mark channels as being updated:
|
||||
$result = mysql_query("UPDATE channel SET timestamp = '". time() ."' WHERE id = $channel->id");
|
||||
}
|
||||
else print "<HR>RDF parser: 404 error?<BR><BR><PRE>$data</PRE><HR>";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
function displayHeadlines($site, $timout = 1800) {
|
||||
global $theme;
|
||||
|
||||
### Connect to database:
|
||||
dbconnect();
|
||||
|
||||
### Get channel info:
|
||||
$result = mysql_query("SELECT * FROM channel WHERE site = '$site'");
|
||||
|
||||
if ($channel = mysql_fetch_object($result)) {
|
||||
|
||||
### Check to see whether we have to update our headlines first:
|
||||
if (time() - $channel->timestamp > $timout) $this->url2sql($site);
|
||||
|
||||
### Grab headlines from database:
|
||||
$result = mysql_query("SELECT * FROM headlines WHERE id = $channel->id ORDER BY number");
|
||||
while ($headline = mysql_fetch_object($result)) {
|
||||
$content .= "<LI><A HREF=\"$headline->link\">$headline->title</A></LI>";
|
||||
}
|
||||
### Add timestamp:
|
||||
$update = round((time() - $channel->timestamp) / 60);
|
||||
$content .= "<P ALIGN=\"right\">[ <A HREF=\"rdf.php?op=reset&id=$channel->id\"><FONT COLOR=\"$theme->hlcolor2\">reset</FONT></A> | updated $update min. ago ]</P>";
|
||||
|
||||
### Display box:
|
||||
$theme->box("$channel->site", $content);
|
||||
}
|
||||
else print "<P>Warning: something whiched happened: specified channel could not be found in database.</P>";
|
||||
}
|
||||
|
||||
function addChannel($site, $url, $rdf) {
|
||||
### Connect to database:
|
||||
dbconnect();
|
||||
|
||||
### Add channel:
|
||||
$query = mysql_query("INSERT INTO channel (site, url, rdf, timestamp) VALUES ('$site', '$url', '$rdf', now())");
|
||||
}
|
||||
|
||||
function resetChannel($id) {
|
||||
### Connect to database:
|
||||
dbconnect();
|
||||
|
||||
### Delete headlines:
|
||||
$result = mysql_query("DELETE FROM headlines WHERE id = $id");
|
||||
|
||||
### Mark channel as invalid to enforce an update:
|
||||
$result = mysql_query("UPDATE channel SET timestamp = 42 WHERE id = $id");
|
||||
}
|
||||
}
|
||||
|
||||
function adminAddChannel() {
|
||||
?>
|
||||
<HR>
|
||||
<FORM ACTION="rdf.php" METHOD="post">
|
||||
<P>
|
||||
<B>Site name:</B><BR>
|
||||
<INPUT TYPE="text" NAME="site" SIZE="50">
|
||||
</P>
|
||||
|
||||
<P>
|
||||
<B>URL:</B><BR>
|
||||
<INPUT TYPE="text" NAME="url" SIZE="50">
|
||||
</P>
|
||||
|
||||
<P>
|
||||
<B>RDF file:</B><BR>
|
||||
<INPUT TYPE="text" NAME="rdf" SIZE="50">
|
||||
</P>
|
||||
<INPUT TYPE="submit" NAME="op" VALUE="Add RDF channel">
|
||||
</FORM>
|
||||
<?
|
||||
}
|
||||
|
||||
function adminDisplayAll() {
|
||||
### Connect to database:
|
||||
dbconnect();
|
||||
|
||||
### Get channel info:
|
||||
$result = mysql_query("SELECT * FROM channel ORDER BY id");
|
||||
|
||||
print "<TABLE BORDER=\"0\">";
|
||||
while ($channel = mysql_fetch_object($result)) {
|
||||
if ($state % 3 == 0) print " <TR>";
|
||||
|
||||
print " <TD ALIGN=\"center\" VALIGN=\"top\" WIDTH=\"33%\">";
|
||||
$rdf = new rdf();
|
||||
$rdf->displayHeadlines($channel->site);
|
||||
print " </TD>";
|
||||
|
||||
if ($state % 3 == 2) print " </TR>";
|
||||
|
||||
$state += 1;
|
||||
}
|
||||
print "</TABLE>";
|
||||
}
|
||||
|
||||
function adminDisplayInfo() {
|
||||
?>
|
||||
<H1>Headlines</H1>
|
||||
Dries was here.
|
||||
<H3>Concept</H3>
|
||||
<P>
|
||||
RDF support can change a portal in a significant way: third party websites
|
||||
can become <I>channels</I> in our portal without having to make 'real' deals
|
||||
and with a minimum of extra work. All they need to do is to publish an RDF,
|
||||
so we can include their latest updates in our portal. Yet another easy way
|
||||
to add content.
|
||||
</P>
|
||||
<P>
|
||||
That in and of itself is interesting, but it's not half so interesting as
|
||||
the fact that other sites can include our headlines as well. Anyone can
|
||||
grab our RDF, anyone can parse it, and anyone can put a list of our
|
||||
headlines. Yet another way to generate more traffic.
|
||||
</P>
|
||||
|
||||
<H3>Features</H3>
|
||||
<P>
|
||||
One of the most important features (if not the most important) is
|
||||
chaching support. To avoid bogging down other portals with a continous
|
||||
stream of headline grabbing, all headlines are cached and refreshed once
|
||||
in a while. The 'while' can be costumized but is set to 30 minutes by
|
||||
default.
|
||||
</P>
|
||||
<P>
|
||||
You can reset a channel, that is force to update a channels headlines
|
||||
and you can add new channels. If you don't know what channel to add,
|
||||
check <A HREF="http://www.xmltree.com/">http://www.xmltree.com/</A>.
|
||||
Make sure you don't add anything except valid RDF files!
|
||||
</P>
|
||||
|
||||
<H3>Status</H3>
|
||||
<P>
|
||||
The RDF parser is still in beta and needs proper integration in the engine.
|
||||
Until then this test page generates nothing more then an overview off all
|
||||
subscribed channels along with their headlines: handy for news squatting. ;)
|
||||
</P>
|
||||
<P>
|
||||
RDF files are non-proprietary and publically available. Unfortunatly,
|
||||
RDF is not the only standard: another commonly used format is RSS which
|
||||
would be nice to support as well.
|
||||
</P>
|
||||
<HR>
|
||||
<?
|
||||
}
|
||||
|
||||
$theme->header();
|
||||
|
||||
switch($op) {
|
||||
case "reset":
|
||||
$channel = new rdf();
|
||||
$channel->resetChannel($id);
|
||||
print "<H2>channel has been reset</H2>";
|
||||
print "<A HREF=\"rdf.php\">back</A>";
|
||||
break;
|
||||
case "Add RDF channel":
|
||||
$channel = new rdf();
|
||||
$channel->addChannel($site, $url, $rdf);
|
||||
// fall through:
|
||||
default:
|
||||
adminDisplayInfo();
|
||||
adminDisplayAll();
|
||||
adminAddChannel();
|
||||
}
|
||||
|
||||
$theme->footer();
|
||||
|
||||
?>
|
||||
Loading…
Reference in New Issue