Difference: HeadlinesPlugin (1 vs. 2)

Revision 22009-08-29 - TWikiContributor

Line: 1 to 1
Added:
>
>

Headlines Plugin

 
<--
   Contributions to this plugin are appreciated. Please update the plugin page
   at http://twiki.org/cgi-bin/view/Plugins/HeadlinesPlugin or provide feedback
   at http://twiki.org/cgi-bin/view/Plugins/HeadlinesPluginDev.
   If you are a TWiki contributor please update the plugin in the SVN repository.
-->
Deleted:
<
<

Headlines Plugin

 

Description

This plugin displays RSS and ATOM feeds from news sites. Use it to build news portals that show headline news.

Changed:
<
<
Note: Syndic8.com ( http://www.syndic8.com/ ) is a good site listing many RSS feeds.
>
>
Note: Syndic8.com ( http://www.syndic8.com/ ) lists many RSS feeds.
 

Syntax Rules

Line: 25 to 25
 
href="..." (Alternative to above) N/A
refresh="60" Refresh rate in minutes for caching feed; "0" for no caching Global REFRESH setting
limit="12" Maximum number of items shown Global LIMIT setting
Added:
>
>
touch="..." Touch (edit/save) topics if the feed has updates. Specify a comma-space delimited list of TopicNames or Web.TopicNames, such as "%TOPIC%, NewsLetter". Useful to send out newsletter using MailerContrib, showing new feeds since last newsletter. To update feeds, visit topics with feeds in regular intervals (using cron with wget or the like). N/A
 | header | Header. Can include these variables: - $channeltitle, $title: title of channel (channel.title)
- $channellink, $link: link of channel (channel.link)
Line: 44 to 45
  - $category: the article category (item.category) | Global FORMAT setting |
Changed:
<
<
The header and format parameters might also use variables rendering the dc, image and content namespace information. Note, that only bits of interest have been implemented so far and those namespaces might not be implemented fully yet.
>
>
The header and format parameters might also use variables rendering the dc, image and content namespace information. Note, that only bits of interest have been implemented so far and those namespaces might not be implemented fully yet.
 

Rendering the dc namespace

Changed:
<
<
The following variables are extracting the dc namespace info, that could be used in header and format. Nnote, that some of the variables are already used above. This is done by purpose to use different feeds with the same formating parameters. If there's a conflict the non-dc tags have higher precedence, i.e. a <title> content </title> is prefered over <dc:title> content </dc:title> .
>
>
The following variables are extracting the dc namespace info, that could be used in header and format. Nnote, that some of the variables are already used above. This is done by purpose to use different feeds with the same formating parameters. If there's a conflict the non-dc tags have higher precedence, i.e. a <title> content </title> is prefered over <dc:title> content </dc:title> .
 
  • $title: channel/article title (dc:title)
  • $creator: channel creator (dc:creator)
  • $subject: subject text; this will also add an image according to the subject hash
Line: 94 to 88
 %HEADLINES{"http://slashdot.org/slashdot.rdf" header="*$title:* $description" format="$t* $title"
Added:
>
>
limit="4"
 }% to get the latest Slashdot news as a bullet list format:
Changed:
<
<
HeadlinesPlugin ERROR: 500 Can't connect to slashdot.org:443
>
>
HeadlinesPlugin ERROR: 500 Can't connect to slashdot.org:443
 

Business Opportunities Weblog

Write

Changed:
<
<
HeadlinesPlugin ERROR: 500 Can't connect to www.business-opportunities.biz:443
>
>
HeadlinesPlugin ERROR: 500 Can't connect to www.business-opportunities.biz:443
 

to get the latest postings on the "Business Opportunities" weblog:

Changed:
<
<
HeadlinesPlugin ERROR: 500 Can't connect to www.business-opportunities.biz:443
>
>
HeadlinesPlugin ERROR: 500 Can't connect to www.business-opportunities.biz:443
 

Plugin Settings

Line: 150 to 145
 
    • $TWiki::cfg{PROXY}{PORT} - proxy port, such as "8080";
    • $TWiki::cfg{PROXY}{SkipProxyForDomains} - domains excluded from proxy, such as "intra.example.com, bugs.example.com";
Added:
>
>

Style Sheets

 
Changed:
<
<

Style sheets

The default HEADER and FORMAT settings use the following styles. See the style.css file defining the default CSS properties (indentation illustrates enclosure).
>
>
The default HEADER and FORMAT settings use the following styles. See the style.css file defining the default CSS properties (indentation illustrates enclosure).
 
  • headlinesRss: output of the HeadlinesPlugin (div)
    • headlinesChannel: channel header (div)
Line: 171 to 165
 

Plugin Installation Instructions

Changed:
<
<
>
>
 
  • Unzip it in your twiki installation directory. Content:
    File: Description:
    data/TWiki/HeadlinesPlugin.txt plugin topic
Line: 179 to 173
 
lib/TWiki/HeadlinesPlugin.pm plugin perl module
lib/TWiki/HeadlinesPlugin/Core.pm plugin core
Check if above examples show a news feed instead of variable.
Changed:
<
<
  • Optionally, run HeadlinesPlugin_installer.pl to automatically check and install other TWiki modules that this module depends on. You can also do this step manually.
  • Alternatively, manually make sure the dependencies listed in the table below are resolved.
>
>
  • Optionally, run HeadlinesPlugin_installer.pl to automatically check and install other TWiki modules that this module depends on. You can also do this step manually.
  • Alternatively, manually make sure the dependencies listed in the table below are resolved.
 
NameVersionDescription
Digest::MD5>=2.33Required. Download from CPAN:Digest::MD5
LWP::UserAgent>=5.803Optional. Download from CPAN:LWP::UserAgent
Deleted:
<
<
 

Plugin Info

Plugin Author: TWiki:Main.PeterThoeny, TWiki:Main.MichaelDaum
Line: 192 to 182
 
Plugin Author: TWiki:Main.PeterThoeny, TWiki:Main.MichaelDaum
Copyright: © 2002-2009, Peter Thoeny, TWIKI.NET; 2005-2007, Michael Daum http://wikiring.de
License: GPL (GNU General Public License)
Changed:
<
<
Plugin Version: v2.21 - 12 Feb 2009
>
>
Plugin Version: v2.3 - 29 Aug 2009
 
Change History:
<-- specify latest version first -->
 
Added:
>
>
29 Aug 2009: added touch parameter -- Peter Thoeny
 
12 Feb 2009: {PROXY}{HOST} supports domain with and without protocol -- Peter Thoeny
06 Feb 2009: added {PROXY}{SkipProxyForDomains} configure setting, added USERAGENTNAME plugin setting -- Peter Thoeny
11 Dec 2008: added {PROXY}{HOST} and {PROXY}{PORT} configure settings -- Peter Thoeny
13 Sep 2007: fixed parsing of content:encoded
23 Jul 2006: improved atom parser; if a posting has no title default to 'Untitled'
26 Apr 2006: added lazy compilation
Changed:
<
<
10 Feb 2006: packaged using the TWiki:Plugins/BuildContrib; minor fixes
03 Feb 2006: off-by-one: limit="n" returned n+1 articles; make FORMAT and HEADER format strings more robust
>
>
10 Feb 2006: packaged using the TWiki:Plugins/BuildContrib; minor fixes
03 Feb 2006: off-by-one: limit="n" returned n+1 articles; make FORMAT and HEADER format strings more robust
 
23 Jan 2006: released v2.00
05 Dec 2005: internal feed urls must be absolute
02 Dec 2005: added web.topic shorthand for internal feeds
29 Nov 2005: fixed CDATA handling
Changed:
<
<
21 Nov 2005: added ATOM support; extended RSS support; added dublin core support; added content support; optionally using LWP to fetch feeds to follow redirections; corrected CPAN dependencies ; recoding special chars from html integer to entity encoding to increase browser compatibility; added css support; use getWorkArea() if available
>
>
21 Nov 2005: added ATOM support; extended RSS support; added dublin core support; added content support; optionally using LWP to fetch feeds to follow redirections; corrected CPAN dependencies ; recoding special chars from html integer to entity encoding to increase browser compatibility; added css support; use getWorkArea() if available
 
11 May 2005: TWiki:Main.WillNorris: added DevelopBranch compatability
31 Oct 2004: Fixed taint issue by TWiki:Main.AdrianWeiler; small performance improvement
29 Oct 2004: Fixed issue of external caching if mod_perl or SpeedyCGI is used
Line: 229 to 209
 
Feedback: TWiki:Plugins/HeadlinesPluginDev
Appraisal: TWiki:Plugins/HeadlinesPluginAppraisal
Changed:
<
<
-- TWiki:Main.PeterThoeny - 12 Jan 2009
-- TWiki:Main.MichaelDaum - 13 Sep 2007
>
>
-- TWiki:Main.PeterThoeny - 29 Aug 2009

Revision 12009-02-13 - TWikiContributor

Line: 1 to 1
Added:
>
>
<--
   Contributions to this plugin are appreciated. Please update the plugin page
   at http://twiki.org/cgi-bin/view/Plugins/HeadlinesPlugin or provide feedback
   at http://twiki.org/cgi-bin/view/Plugins/HeadlinesPluginDev.
   If you are a TWiki contributor please update the plugin in the SVN repository.
-->

Headlines Plugin

Description

This plugin displays RSS and ATOM feeds from news sites. Use it to build news portals that show headline news.

Note: Syndic8.com ( http://www.syndic8.com/ ) is a good site listing many RSS feeds.

Syntax Rules

%HEADLINES{"..."}%

Parameter
<-- -->
Sorted ascending
Explanation Default
"..." source of RSS feed; this can be an url (starting with http) or a web.topic location for internal feeds None; is required
format Format of one item. Can include these variables:
- $title: news item title (item.title)
- $link: news item link (item.link)
- $description: news item description (item.description)
- $date: the publication date (item.pubDate, item.date)
- $category: the article category (item.category)
Global FORMAT setting
header Header. Can include these variables: - $channeltitle, $title: title of channel (channel.title)
- $channellink, $link: link of channel (channel.link)
- $channeldescription, $description: description (channel.description)
- $channeldate, $date: publication date of the channel (channel.pubDate)
- $rights: copyrights of the channel (channel.copyright)
- $imagetitle: title text for site (image.title)
- $imagelink: link for site (image.link)
- $imageurl: URL of image (image.url)
- $imagedescription: description of image (image.description)
Global HEADER setting
href="..." (Alternative to above) N/A
limit="12" Maximum number of items shown Global LIMIT setting
refresh="60" Refresh rate in minutes for caching feed; "0" for no caching Global REFRESH setting

The header and format parameters might also use variables rendering the dc, image and content namespace information. Note, that only bits of interest have been implemented so far and those namespaces might not be implemented fully yet.

Rendering the dc namespace

The following variables are extracting the dc namespace info, that could be used in header and format. Nnote, that some of the variables are already used above. This is done by purpose to use different feeds with the same formating parameters. If there's a conflict the non-dc tags have higher precedence, i.e. a <title> content </title> is prefered over <dc:title> content </dc:title> .

  • $title: channel/article title (dc:title)
  • $creator: channel creator (dc:creator)
  • $subject: subject text; this will also add an image according to the subject hash list, see above (dc:subject)
  • $description: ... (dc:description)
  • $publisher: the channel/article publisher (dc:publisher)
  • $contributor: ... (dc:contributor)
  • $date: ... (dc:date)
  • $type: ... (dc:type)
  • $format: ... (dc:format)
  • $identifier: ... (dc:identifier)
  • $source: ... (dc:source)
  • $language: ... (dc:language)
  • $relation: ... (dc:relation)
  • $coverage: ... (dc: coverage)
  • $rights: ... (dc: rights)

Rendering the image namespace

An image:item is converted into an <img> tag using the following mappings:

  • src: image url (rdf:about attribute of the image.item tag)
  • alt: image title (title)
  • width: image width (image:width)
  • height: image height image:height)

Rendering the content namespace

The variable $content is refering to the <content:encoding> content </content:encoding>.

Examples

Slashdot News

Write

%HEADLINES{"http://slashdot.org/slashdot.rdf" 
  header="*[[$link][$title]]:* $description" 
  format="$t* [[$link][$title]]"
}%
to get the latest Slashdot news as a bullet list format:

HeadlinesPlugin ERROR: 500 Can't connect to slashdot.org:443

Business Opportunities Weblog

Write

%HEADLINES{"http://www.business-opportunities.biz/feed" limit="3"}%

to get the latest postings on the "Business Opportunities" weblog:

HeadlinesPlugin ERROR: 500 Can't connect to www.business-opportunities.biz:443

Plugin Settings

Plugin settings are stored as preferences variables. To reference a plugin setting write %<plugin>_<setting>%, for example, %HEADLINESPLUGIN_SHORTDESCRIPTION%. Note: Don't modify the settings here; copy and customize the settings in Main.TWikiPreferences. For example, to customize the USERAGENTNAME setting, create a HEADLINESPLUGIN_USERAGENTNAME setting in Main.TWikiPreferences.

  • One line description, shown in the TextFormattingRules topic:
    • Set SHORTDESCRIPTION = Show headline news in TWiki pages based on RSS and ATOM news feeds from external sites

  • Refresh rate in minutes for cached feeds. Disable caching: 0, default: 60
    • Set REFRESH = 60

  • Maximum number of items shown. Default: 100
    • Set LIMIT = 100

  • Use LWP::UserAgent, or fallback to TWiki's internal getUrl() method. Default: yes
    • Set USELWPUSERAGENT = yes

  • Timeout fetching a feed using the LWP::UserAgent. Default: 20
    • Set USERAGENTTIMEOUT = 20

  • Name of user agent. Default: TWikiHeadlinesPlugin/2.21
      * Set USERAGENTNAME = TWikiHeadlinesPlugin/2.21

  • Default header: (variables are explained in the syntax rules)
      * Set HEADER = <div class="headlinesChannel"><div class="headlinesLogo"><img src="$imageurl" alt="$imagetitle" border="0" />%BR%</div><div class="headlinesTitle">$n---+!! <a href="$link">$title</a></div><div class="headlinesDate">$date</div><div class="headlinesDescription">$description</div><div class="headlinesRight">$rights</div></div>

  • Default format of one item: (variables are explained in the syntax rules)
      * Set FORMAT = <div class="headlinesArticle"><div class="headlinesTitle"><a href="$link">$title</a></div>$n<span class="headlinesDate">$date</span> <span class="headlinesCreator"> $creator</span> <span class="headlinesSubject"> $subject </span>$n<div class="headlinesText"> $description</div></div>

  • Values taken from configure: (only supported if CPAN:LWP is installed)
    • $TWiki::cfg{PROXY}{HOST} - proxy host, such as "proxy.example.com";
    • $TWiki::cfg{PROXY}{PORT} - proxy port, such as "8080";
    • $TWiki::cfg{PROXY}{SkipProxyForDomains} - domains excluded from proxy, such as "intra.example.com, bugs.example.com";

Style sheets

The default HEADER and FORMAT settings use the following styles. See the style.css file defining the default CSS properties (indentation illustrates enclosure).

  • headlinesRss: output of the HeadlinesPlugin (div)
    • headlinesChannel: channel header (div)
      • headlinesLogo: channel logo (div)
      • headlinesTitle: channel title (div)
      • headlinesDate: channel date (div)
      • headlinesDescription: channel description (div)
      • headlinesRight: channel copyright (div)
    • headlinesArticle: one news item (div)
      • headlinesTitle: article title (div)
      • headlinesDate: article date (span)
      • headlinesCreator: author of article (span)
      • headlinesSubject: subect category of the article (span)
      • headlinesText: article text (div)

Plugin Installation Instructions

  • Download the ZIP file
  • Unzip it in your twiki installation directory. Content:
    File: Description:
    data/TWiki/HeadlinesPlugin.txt plugin topic
    pub/TWiki/HeadlinesPlugin/style.css default css
    lib/TWiki/HeadlinesPlugin.pm plugin perl module
    lib/TWiki/HeadlinesPlugin/Core.pm plugin core
    Check if above examples show a news feed instead of variable.
  • Optionally, run HeadlinesPlugin_installer.pl to automatically check and install other TWiki modules that this module depends on. You can also do this step manually.
  • Alternatively, manually make sure the dependencies listed in the table below are resolved.
    NameVersionDescription
    Digest::MD5>=2.33Required. Download from CPAN:Digest::MD5
    LWP::UserAgent>=5.803Optional. Download from CPAN:LWP::UserAgent

Plugin Info

Plugin Author: TWiki:Main.PeterThoeny, TWiki:Main.MichaelDaum
Copyright: © 2002-2009, Peter Thoeny, TWIKI.NET; 2005-2007, Michael Daum http://wikiring.de
License: GPL (GNU General Public License)
Plugin Version: v2.21 - 12 Feb 2009
Change History:
<-- specify latest version first -->
 
12 Feb 2009: {PROXY}{HOST} supports domain with and without protocol -- Peter Thoeny
06 Feb 2009: added {PROXY}{SkipProxyForDomains} configure setting, added USERAGENTNAME plugin setting -- Peter Thoeny
11 Dec 2008: added {PROXY}{HOST} and {PROXY}{PORT} configure settings -- Peter Thoeny
13 Sep 2007: fixed parsing of content:encoded
23 Jul 2006: improved atom parser; if a posting has no title default to 'Untitled'
26 Apr 2006: added lazy compilation
10 Feb 2006: packaged using the TWiki:Plugins/BuildContrib; minor fixes
03 Feb 2006: off-by-one: limit="n" returned n+1 articles; make FORMAT and HEADER format strings more robust
23 Jan 2006: released v2.00
05 Dec 2005: internal feed urls must be absolute
02 Dec 2005: added web.topic shorthand for internal feeds
29 Nov 2005: fixed CDATA handling
21 Nov 2005: added ATOM support; extended RSS support; added dublin core support; added content support; optionally using LWP to fetch feeds to follow redirections; corrected CPAN dependencies ; recoding special chars from html integer to entity encoding to increase browser compatibility; added css support; use getWorkArea() if available
11 May 2005: TWiki:Main.WillNorris: added DevelopBranch compatability
31 Oct 2004: Fixed taint issue by TWiki:Main.AdrianWeiler; small performance improvement
29 Oct 2004: Fixed issue of external caching if mod_perl or SpeedyCGI is used
02 Aug 2002: Implemented caching of feeds, thanks to TWiki:Main/RobDuarte
11 Jun 2002: Initial version (V1.000)
Perl Version: 5.8
TWiki:Plugins/Benchmark: GoodStyle 100%, FormattedSearch 99.5%, HeadlinesPlugin 94%
Plugin Home: TWiki:Plugins/HeadlinesPlugin
Feedback: TWiki:Plugins/HeadlinesPluginDev
Appraisal: TWiki:Plugins/HeadlinesPluginAppraisal

-- TWiki:Main.PeterThoeny - 12 Jan 2009
-- TWiki:Main.MichaelDaum - 13 Sep 2007

 
This site is powered by the TWiki collaboration platform Powered by PerlCopyright © 1999-2024 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.
Ideas, requests, problems regarding TWiki? Send feedback
Note: Please contribute updates to this topic on TWiki.org at TWiki:TWiki.HeadlinesPlugin.