X-Cart forums - Syndicate X-Cart news as RSS 2.0 Channel

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- - Syndicate X-Cart news as RSS 2.0 Channel (https://forum.x-cart.com/showthread.php?t=19661)

Syndicate X-Cart news as RSS 2.0 Channel

If you'd like to offer a RSS feed with the latest news from your x-cart 4.1.x, feel free to use the following code.

1. Create news_feed.php in the root of your x-cart with the following content:

PHP Code:


		
			
<?php

/*

 * news_feed.php.

 * 2008-07-17. Zhuravlev Alexander (zaa@qualiteam.biz).

 * License: MIT (http://www.opensource.org/licenses/mit-license.php)

 * 

 * Syndicate X-Cart news as RSS 2.0 Channel

 * Script supports HTTP conditional GET

 * http://fishbowl.pastiche.org/2002/10/21/http_conditional_get_for_rss_hackers

 * 

 * Note: News should be added at News Management page of x-cart

 * administration area. Corresponding news list and messages in it should have option "Show as news" being enabled.

 * 

 */



@include_once "./top.inc.php";

if (!defined('DIR_CUSTOMER')) die("ERROR: Can not initiate application! Please check configuration.");



define('XCART_SESSION_START', 1); # We do not need any sessions

if (@file_exists($xcart_dir."/init.php")) {

    require $xcart_dir."/init.php";

} else {

    require $xcart_dir."/config.php";

}



# *Required* RSS channel properties. [[[

$rss_channel = array();



# The name of the channel. It's how people refer to your service.

$rss_channel['title'] = $config['Company']['company_name'] . " News Headlines";



# The URL to the HTML website corresponding to the channel.

$rss_channel['link'] = $http_location;



# Phrase or sentence describing the channel

$rss_channel['description'] = "The latest news from " . $config['Company']['company_name'];

    

# The language the channel is written in. 

# http://www.w3.org/TR/REC-html40/struct/dirlang.html#langcodes

$rss_channel['language'] = "en";

    

# By default we assume that text is provided in UTF-8 enconding.

# You may change this according to your needs. 

$rss_channel['encoding'] = 'UTF-8';

# ]]]



define('RSS20_DATE_FORMAT',  "D, d M Y H:i:s O");

   

# Fetch messages info 

if ($active_modules['News_Management']) {

    $messages_info = func_query_first("SELECT COUNT(*) as msg_count, MAX(date) AS last_date FROM $sql_tbl[newslists] AS nl LEFT JOIN $sql_tbl[newsletter] AS n ON n.listid = nl.listid WHERE nl.avail='Y' AND nl.show_as_news='Y' AND n.show_as_news = 'Y' ORDER BY n.date DESC");

}



if (!empty($messages_info) && $messages_info['last_date']) {

    $last_mod_time = date(RSS20_DATE_FORMAT, $messages_info['last_date']);

    $news_page_url = $http_location.DIR_CUSTOMER."/news.php";

    $messages = func_query("SELECT n.newsid, n.subject, n.body, n.date FROM $sql_tbl[newslists] AS nl LEFT JOIN $sql_tbl[newsletter] AS n ON n.listid = nl.listid WHERE nl.avail='Y' AND nl.show_as_news='Y' and n.show_as_news = 'Y' ORDER BY n.date DESC");

    $items_code = "";

    foreach ($messages as $m) {

            $pubDate = date(RSS20_DATE_FORMAT, $m['date']);

            $m['title'] = htmlspecialchars($m['subject']);

            $items_code .= <<<EX

        <item> 

            <title>{$m['subject']}</title>

            <description><![CDATA[{$m['body']}]]></description>

            <link>$news_page_url</link>

            <guid isPermaLink="false">{$m['newsid']}@$news_page_url</guid>

            <pubDate>$pubDate</pubDate>

        </item>



EX;

    }

} else {

    $last_mod_time = date(RSS20_DATE_FORMAT, time());

}



# Channel header

$rss_channel['title'] = htmlspecialchars($rss_channel['title']);

$rss_channel['description'] = htmlspecialchars($rss_channel['description']);

$channel = <<<EX

<?xml version="1.0" encoding="{$rss_channel['encoding']}"?>

<rss version="2.0">

    <channel>

        <title>{$rss_channel['title']}</title>

        <link>{$rss_channel['link']}</link>

        <description>{$rss_channel['description']}</description>

        <language>{$rss_channel['language']}</language>

        <generator>X-Cart</generator>

        <pubDate>$last_mod_time</pubDate>

        <lastBuildDate>$last_mod_time</lastBuildDate>



EX;



if (!empty($items_code)) {

        $channel .= $items_code;

        unset($items_code);

}



$channel .= <<<EX

    </channel>

</rss>



EX;



$channel_etag = '"'.md5($channel).'"';



# Conditional GET logic [[[

# Check if the channel contents should be passed to client.

# We analyze HTTP response headers: If-Modified-Since, If-None-Match



$IMS_FLAG = 0;

if (!empty($HTTP_SERVER_VARS['HTTP_IF_MODIFIED_SINCE'])) {

        if (strtotime($HTTP_SERVER_VARS['HTTP_IF_MODIFIED_SINCE'])  == strtotime($last_mod_time)) {

              $IMS_FLAG = 1;

        }

}



$INM_FLAG = 0;

if (!empty($HTTP_SERVER_VARS['HTTP_IF_NONE_MATCH'])) {

        if ($HTTP_SERVER_VARS['HTTP_IF_NONE_MATCH']  == $channel_etag) {

              $INM_FLAG = 1;

        }

}



$pass_channel_to_client = !($IMS_FLAG || $INM_FLAG);

# ]]]



if (!$pass_channel_to_client) {

    header("HTTP/1.0 304 Not Modified");

    header('ETag: ' . $channel_etag);

} else {

    # Output headers [[[

    header("Content-Type: application/xml; charset=".$rss_channel['encoding']);

    header("Content-length: " . strlen($channel));

    header("Last-Modified: " . $last_mod_time);

    header('ETag: ' . $channel_etag);

    # ]]]



    echo $channel;

}



# vim600: set et sw=4 sts=4 ts=4 fdm=marker fmr=[[[,]]]:

?>

2. open skin1/customer/home.tpl and replace in the file:

{ include file="meta.tpl" }

with

Code:

{ include file="meta.tpl" }

<link rel="alternate" type="application/rss+xml" title="RSS" href="{$current_location}/news_feed.php" />

After that users of Mozilla and Opera will automatically see RSS icon in location bar and will be able to subscribe to the RSS feed.

Has anyone tried anything like this with earlier versions such as 3.4 or 3.5 branches?

I would like to use aspects of this in another mod, but it would be for 3.4 or 3.5 versions.

didn't work for me

I tried this mod yet it's not working for me tell me what i'm doing worong.
www.certifiedcomp.com/store/home.php

Re: didn't work for me

Quote:

Originally Posted by Abdul

I tried this mod yet it's not working for me tell me what i'm doing worong.
www.certifiedcomp.com/store/home.php

Your PHP file is being processed as a text file.

http://www.certifiedcomp.com/store/news_feed.php

Check to make sure that the vey first thing in that file is <?php

Hello

Please help. I receive following error when acces news_feed.php:

Parse error: parse error, unexpected T_SL in /home/mallroma/public_html/news_feed.php on line 60

Thanks