rss aggregator

From : jinhjok.blogspot.com/2007/06

• aggrss – an rss aggregator which uses the lastRSS library to aggregate RSS feeds. Unix
• AgileRss – desktop aggregator that is able to display any RSS, ATOM, and XML news feed. It also allows you to keep up-to-date with all your favourite sources of information that support the RSS protocol. Internet syndication and aggregation software, that runs on any java enabled operating system. Minimum hardware configuration is Intel Pentium II system with 128 MB of RAM and 100 MB free disk space. Sun Microsystems Java VM version 5.0 or later
• aKregator – a news aggregator and feed reader for Linux/UNIX and the KDE desktop environment. It is meant to be fast, powerful, and easy to use
• CaféRSS – a simple RSS aggregator that’s quite easy to integrate into your pages. It supports RSS 0.9, 0.91, 0.92, and 2.0 feeds
• Feed on Feeds – server side personal RSS aggregator. Requires a server running modern versions of PHP and MySQL
• FeedOnFeeds-Redux – a continuation of the popular, but stagnated FeedOnFeeds project. FoFRedux provides a simple, yet effective browser-based news aggregator
• Feed Reader Professional – Reads news feeds – Reads weather feeds – Reads blog feeds – Reads content feeds – Reads industry feeds – Reads affiliate program feeds – Reads XML and RSS feeds – Simple to install, simple to use – Does not require MYSQL – Software includes professional output – Requires PHP on Linux. $99 US
• FeedReactor – experimental feed aggregator in Python
• FIRST SAY – a syndicated content aggregator / portal that uses XML/RSS syndication feeds from Weblogs and mainstream content providers
• getrss – RSS news aggregator in Ruby
• Infinite Penguins RSS viewer – The code consists of a single PHP source file for the frontend, and the Magpie RSS Library (versions 0.1, 0.3, 0.5 have been tested) for the backend
• Jrssfeedreader – a light and fast Rss & Rdf news reader written in Java
• K.R.S.S. – a Linux-based application that downloads Rich Site Summary feeds and displays them on your desktop, in HTML
• Liferea – a simple FeedReader clone for Unix distributions with GNOME2. It is a news aggregator for RSS/RDF feeds which also supports CDF channels, Atom/Echo/PIE feeds and OCS or OPML directories
• lilina – a simple but powerful news aggregator written in PHP. No database is needed, RSS/ATOM parsing is done by the excellent MagpieRSS library (it is included, no additional installation needed). It features feed auto-discovery and an easy-to-use interface
• lylina – an RSS/Atom feed aggregator loosely based on it’s predecessor, lilina. Although it features a similar interface, making it an easy upgrade and quite familiar to lilina users, it improves upon the formula with the addition of a much faster MySQL backend and a much more streamlined cron-based update system. It also adds optional multi-user support, allowing for each user to login and see a customized feed page, filled with the content of choice
• Metaplanet – a feed agregrator that shows the news of multiple sources in a unified web page. The main objetive is to serve web pages as fast as posible with a minimum load on the server. Requiriments: PHP 4.3 with XSLT support enabled. PHP command-line interpreter
• My Newspaper – a personal RSS Aggregator and Reader written in Python with a bit of javascript and uses sqlite as permanent storage for the articles
• MyHeadlines – personalized syndicated content. As a user you may subscribe to many news/content sources from the MyHeadlines database. For each of your subscriptions this site will gather the latest headlines/stories/content from the source and present a consolidated view of all of your interests in one location. Requires MySQL v3.23.23 or better. PHP 4.0.4 or better
• NewsGoblin PHP RSS News Aggregator – This script will bring you a complete news site that is constantly updated via rss feeds. This script is completely customizable, has an adsense setting to allow you to make money showing news on your site. Hot news items based on high dollar Google Adwords. No database required
• PenguinTV – a Python-based RSS reader specifically designed for downloading and viewing podcasts and video blog entries
• Plagger – A pluggable RSS/Atom feed aggregator written in Perl. Everything is implemented as a small plugin so you can mash them up to build a new application to handle RSS/Atom feeds
• Raggle – a console RSS aggregator, written in Ruby. Features include customizable keybindings, basic HTML rendering, HTTP proxy support, OPML import/export, themes, support for various versions of RSS, Screen support, browser auto-detection, and more. Raggle has been tested under Linux and OpenBSD, and should work properly under other Unix variants as well
• renko – a simple enclosure-aware RSS aggregator/downloader
• Rippy the Aggregator – Written in PHP (version requirement unknown, probably needs PHP4). Doesn’t require any compiled-in optional libraries that don’t ship with PHP. Stores its cached data in flat files, no database needed. Freely licensed and customizable under the GNU GPL version
• Rnews – a server-side rss aggregator written in php with mysql
• Rol – a simple application for reading RSS or RDF feeds such as those produced by many news sites or weblogs. It is not intended to do anything more than display the headlines and allow you to choose which to read in your web browser. Rol is written on Debian GNU/Linux, but it should work on any POSIX system
• RSS-Planet – a custom marker file generator for xplanet which uses RSS feeds from news websites to plot the current headlines on a world map. By default, Yahoo! News and CNN.com are supported, but other feeds that point to articles with easily-discoverable place names (such as the Washington Post) should work as well. Python 2.3 or above, xplanet 1.0 or above required
• RSS2Exchange – allows you to publish your very own industry specific news pages directly into MS Exchange Public Folders. For Windows and Linux
• RSSFeedMagic – an rss/rdf web reader
• RSStatic – takes information from the feeds you choose and generates static html pages for each item in the feed. This quickly turns a 10 page website into a much larger, more robust site complete with relevant content that continually grows. Requires PHP 4.3.10, and Apache 1.3.33
• Snownews -a text mode RSS/RDF newsreader. It supports RSS 1.0 feeds that comply with the W3C RDF specification and also supports Radio Userland’s RSS 0.91 and 2.0 versions. The program depends on ncurses for the user interface and uses libxml2 for XML parsing. ncurses must be at least version 5.0. It should work with any version of libxml2. Runs on Linux, *BSD, OS X (Darwin), Solaris and probably many more Unices
• sux0r – a Bayesian filtering RSS aggregator. Users classify news under different categories, and after gathering enough data, the computer will be able to automatically pick out interesting news
• Syndigator – is an RSS reader/aggregator for Linux
• TALAggregator – is a free multi-user, web-based RSS Aggregator. It is written in Python, uses MySQL for storage, ModPython for dynamic web pages, and SimpleTAL for HTML templates
• Temboz – an RSS aggregator. It is inspired by FeedOnFeeds (web-based personal aggregator), Google News (two column layout) and TiVo (thumbs up and down). Temboz is written in Python, and leverages Mark Pilgrim’s Ultra-liberal feed parser, SQLite 2.x, Cheetah
• TheYoke -an ultra-simple, polite RSS aggregrator designed for use on the UNIX command line
• Tiny Tiny RSS – Server-side RSS feed aggregator written in PHP and heavily based on XmlHttpRequest and related technologies for user interface and operation
• TV RSS – Gtk2-Perl Torrent RSS feed reader for linux
• ZebraFeeds – a web-based news (RSS/ATOM) aggregator, based on zFeeder 1.6. Uses only flat-text-files, and works without SQL database. Requires PHP >= 4.2.0
• zFeeder – a PHP script used to display RSS content on your webpages. It can be used to display other’s content on your site. (also known as aggregator). It parses RSS (or RDF or backend) files (xml files) and shows content formatted. It supports all versions of RSS (0.9, 0.9x, 1.0 and 2.0) and is template driven
• Zort – a web-based RSS aggregator, based on MagpieRSS. Requires: A webserver (currently only tested on Apache 1), PHP (currently only tested on PHP 4.3.10), a web browser (currently only tested against Mozilla)

RSS(XML) reading process

$this->parser = xml_parser_create();
if(is_resource($this->parser)){
xml_set_object($this->parser, &$this);
xml_set_element_handler($this->parser, ‘feed_start_element’, ‘feed_end_element’);
xml_set_character_data_handler( $this->parser, ‘feed_cdata’ );
return true;
}
return false;

xml_parser_create
(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_parser_create — Create an XML parser

Description

resource xml_parser_create ( [string encoding])

xml_parser_create()
creates a new XML parser and returns a resource handle referencing it to be used by the other XML functions.

xml_parser_create()는 파서를 생성하고,
관련된 xml 관련 함수의 리소스 핸들러를 사용.
이 옵션은 XML 입력시 파서의 문자 엔코딩을 알아내기 위한 옵션.
ISO-8859-1 기반인 UTF-8, US-ASCII 등을 사용할 수 있다.

The optional encoding specifies the character encoding of the XML input to be parsed.
Supported encodings are “ISO-8859-1″, which is also the default if no encoding is specified,
“UTF-8″ and “US-ASCII”.

is_resource
(PHP 4, PHP 5)
is_resource — Finds whether a variable is a resource

Description

bool is_resource ( mixed $var )
Finds whether the given variable is a resource.

is_resource()은
var 인자에 주어진 변수가 resource면 TRUE를,
아니라면 FALSE를 반환.

Parameters
var
The variable being evaluated.

Return Values
Returns TRUE if var is a resource, FALSE otherwise.

xml_set_object
(PHP 4 , PHP 5)
xml_set_object — Use XML Parser within an object

Description

void xml_set_object ( resource parser, object object)

This function allows to use parser inside object.
All callback functions could be set with xml_set_element_handler() etc and assumed to be methods of object.

xml_set_element_handler
(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_set_element_handler — Set up start and end element handlers

Description

bool xml_set_element_handler
( resource parser, callback start_element_handler, callback end_element_handler)

Sets the element handler functions for the XML parser parser.
start_element_handler and end_element_handler are strings containing the names of functions that must exist when xml_parse() is called for parser.

The function named by start_element_handler must accept three parameters:
start_element_handler ( resource parser, string name, array attribs)

parser
The first parameter, parser, is a reference to the XML parser calling the handler.

name
The second parameter, name, contains the name of the element for which this handler is called.
If case-folding is in effect for this parser, the element name will be in uppercase letters.

attribs
The third parameter, attribs, contains an associative array with the element’s attributes (if any).
The keys of this array are the attribute names, the values are the attribute values.
Attribute names are case-folded on the same criteria as element names.
Attribute values are not case-folded.

The original order of the attributes can be retrieved by walking through attribs the normal way,
using each().
The first key in the array was the first attribute, and so on.

The function named by end_element_handler must accept two parameters:
end_element_handler ( resource parser, string name)

parser
The first parameter, parser, is a reference to the XML parser calling the handler.

name
The second parameter, name, contains the name of the element for which this handler is called.
If case-folding is in effect for this parser, the element name will be in uppercase letters.

If a handler function is set to an empty string, or FALSE, the handler in question is disabled.
TRUE is returned if the handlers are set up, FALSE if parser is not a parser.

xml_set_character_data_handler
(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_set_character_data_handler — Set up character data handler

Description

bool xml_set_character_data_handler
( resource parser, callback handler)

Sets the character data handler function for the XML parser parser.
handler is a string containing the name of a function that must exist when xml_parse() is called for parser.

The function named by handler must accept two parameters:
handler ( resource parser, string data)

parser
The first parameter, parser, is a reference to the XML parser calling the handler.

data
The second parameter, data, contains the character data as a string.

If a handler function is set to an empty string, or FALSE, the handler in question is disabled.

When send a TrackBack Ping

The possible parameters in the request content are the following:

• title : The title of the entry. Optional.
• excerpt : An excerpt of the entry. Optional.
• url : The permalink for the entry.  Like any permalink, this should point as closely as possible to the actual entry on the HTML page, as it will be used when linking to the entry in question. Required. If a client neglects to send a url, the server MUST respond with an error message.
• blog_name : The name of the weblog to which the entry was posted. Optional.

All parameters is POST format.

To send a ping, the client sends an HTTP POST request to the TrackBack Ping URL.

The client MUST send a Content-Type HTTP header, with the content type set to application/x-www-form-urlencoded.

The client should include the character encoding of the content being sent (title, excerpt, and weblog name) in the charset attribute of the Content-Type header.

Source links

• Official specification
• Trackback Working Group wiki
• What is Trackback? by Tom Coates
• Trackback Validator Plugin for WordPress: Trackback spam blocker
• TrackBackr JS Trackback system with integrated spam blocker
• http://en.wikipedia.org/wiki/Trackback
• http://ko.wikipedia.org/wiki/%ED%8A%B8%EB%9E%99%EB%B0%B1