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-rw-r--r--includes/backend.inc240
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diff --git a/includes/backend.inc b/includes/backend.inc
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--- a/includes/backend.inc
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@@ -1,240 +0,0 @@
-<?
-
-
-class backend {
-
- // Channel properties:
- var $id;
- var $url;
- var $site;
- var $file;
- var $contact;
- var $timestamp;
-
- // Contains the raw rdf/rss/xml file:
- var $data;
-
- // Contains the parsed rdf/rss/xml file:
- var $headlines = array(); // latest headlines
-
-
- #####
- # Syntax.......: backend(...);
- # Description..: Constructor - initializes the internal variables.
- #
- function backend($id, $site, $url, $file, $contact, $timout = 1800) {
- ### Get channel info:
- $result = db_query("SELECT * FROM channel WHERE id = '$id' OR site = '$site'");
-
- if ($channel = db_fetch_object($result)) {
- ### Initialize internal variables:
- $this->id = $channel->id;
- $this->site = $channel->site;
- $this->file = $channel->file;
- $this->url = $channel->url;
- $this->contact = $channel->contact;
- $this->timestamp = $channel->timestamp;
-
- ### Check to see whether we have to update our headlines first:
- if (time() - $this->timestamp > $timout) $this->url2sql();
-
- ### Read headlines:
- $result = db_query("SELECT * FROM headlines WHERE id = $this->id ORDER BY number");
- while ($headline = db_fetch_object($result)) {
- array_push($this->headlines, "<A HREF=\"$headline->link\">$headline->title</A>");
- }
-
- }
- else {
- $this->site = $site;
- $this->url = $url;
- $this->file = $file;
- $this->contact = $contact;
- }
- }
-
- #####
- # Syntax.......: rdf2sql(optional timout value in seconds);
- # Description..: Reads a RDF file from a server, parses it and inserts
- # the fresh data in a MySQL table.
- #
- function rdf2sql($timout = 10) {
- if ($this->file) {
- ### Decode URL:
- $url = parse_url($this->file);
- $host = $url[host];
- $port = $url[port] ? $url[port] : 80;
- $path = $url[path];
-
- // print "<PRE><B>Debug:</B> $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 = db_query("DELETE FROM headlines WHERE id = $this->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:
- $title = stripslashes($title);
-
- ### Count the number of stories:
- $number += 1;
-
- ### Insert item in database:
- $result = db_query("INSERT INTO headlines (id, title, link, number) VALUES('". check_input($this->id) ."', '". check_input($title) ."', '". check_input($link) ."', '". check_input($number) ."')");
- }
-
- ### Mark channels as being updated:
- $result = db_query("UPDATE channel SET timestamp = '". time() ."' WHERE id = $this->id");
- $this->timestamp = time();
- }
- else print "<HR>RDF parser: 404 error?<BR><BR><PRE>$data</PRE><HR>";
- }
- }
- }
-
-
- #####
- # Syntax.......: rss2sql(optional timout value in seconds);
- # Description..: Reads a RSS file from a server, parses it and inserts
- # the fresh data in a MySQL table.
- #
- function rss2sql($timout = 10) {
- print "backend->rss2sql : TODO<BR>";
- }
-
-
- #####
- # Syntax.......: xml2sql(optional timout value in seconds);
- # Description..: Reads a XML file from a server, parses it and inserts
- # the fresh data in a MySQL table.
- #
- function xml2sql($timout = 10) {
- print "backend->xml2sql : TODO<BR>";
- }
-
-
- #####
- # Syntax.......: url2sql(optional timout value in seconds);
- # Description..: Generic function to fetch fresh headlines. It checks whether
- # we are dealing with a remote RDF, RSS or XML file and calls
- # the appropriate function to fetch the headline. The function
- # is an abstraction towards the programmer as he doesn't need
- # to know with what file extension we are dealing.
- #
- function url2sql($timout = 10) {
- if (strstr($this->file, ".rdf")) $this->rdf2sql($timout);
- if (strstr($this->file, ".rss")) $this->rss2sql($timout);
- if (strstr($this->file, ".xml")) $this->xml2sql($timout);
- }
-
-
- #####
- # Syntax.......:
- # Description..:
- #
- function displayHeadlines($timout = 1800) {
- global $theme;
-
- ### Get channel info:
- $result = db_query("SELECT * FROM channel WHERE site = '$this->site'");
-
- if ($this->id) {
-
- ### Check to see whether we have to update our headlines first:
- if (time() - $this->timestamp > $timout) $this->url2sql();
-
- ### Grab headlines from database:
- $result = db_query("SELECT * FROM headlines WHERE id = $this->id ORDER BY number");
- while ($headline = db_fetch_object($result)) {
- $content .= "<LI><A HREF=\"$headline->link\">$headline->title</A></LI>";
- }
- ### Add timestamp:
- $update = round((time() - $this->timestamp) / 60);
- $content .= "<P ALIGN=\"right\">[ <A HREF=\"backend.php?op=reset&site=$this->site\"><FONT COLOR=\"$theme->hlcolor2\">reset</FONT></A> | updated $update min. ago ]</P>";
-
- ### Display box:
- $theme->box("$this->site", $content);
- }
- else print "<P>Warning: something whiched happened: specified channel could not be found in database.</P>";
- }
-
-
- #####
- # Syntax.......: add()
- # Description..: Adds this backend to the database.
- #
- function add() {
- ### Add channel:
- $result = db_query("INSERT INTO channel (site, file, url, contact, timestamp) VALUES ('". check_input($this->site) ."', '". check_input($this->file) ."', '". check_input($this->url) ."', '". check_input($this->contact) ."', 42)");
- }
-
-
- #####
- # Syntax.......: delete()
- # Description..: Deletes this backend
- #
- function delete() {
- ### Delete channel:
- $result = db_query("DELETE FROM channel WHERE id = $this->id");
-
- ### Delete headlines:
- $result = db_query("DELETE FROM headlines WHERE id = $this->id");
- }
-
- #####
- # Syntax.......: refresh()
- # Description..: Deletes all headlines associated with this backend.
- #
- function refresh() {
- ### Delete headlines:
- $result = db_query("DELETE FROM headlines WHERE id = $this->id");
-
- ### Mark channel as invalid to enforce an update:
- $result = db_query("UPDATE channel SET timestamp = 42 WHERE id = $this->id");
- }
-
- #####
- # Syntax.......: dump()
- # Description..: Dumps the content of this class to screen.
- #
- function dump() {
- print "<B>Dump backend:</B><BR>";
- print "Id: $this->id<BR>";
- print "Site: $this->site<BR>";
- print "URL: $this->url<BR>";
- print "File: $this->file<BR>";
- print "Contact: $this->contact<BR>";
- }
-}
-
-?>
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-07 12:24:53 +0000