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Jeremy
2014-12-12 11:43:29 +01:00
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.editorconfig
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; top-most EditorConfig file
root = true
; Unix-style newlines
[*]
end_of_line = LF
[*.php]
indent_style = space
indent_size = 4
trim_trailing_whitespace = true
insert_final_newline = true
.gitignore
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vendor/
.travis.yml
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language: php
php:
- 5.2
- 5.3
- 5.4
- 5.5
- 5.6
before_script:
- composer self-update
- echo 'date.timezone = "Europe/Paris"' >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
- composer install --prefer-dist --no-interaction
script:
- phpunit --coverage-text
LICENSE.md
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README.md
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# Readability
[![Build Status](https://travis-ci.org/j0k3r/php-readability.svg?branch=master)](https://travis-ci.org/j0k3r/php-readability)
This is an extract of the Readability class from the [full-text-rss](https://github.com/Dither/full-text-rss) fork. It kind be defined as a better version of the original [php-readability](http://code.fivefilters.org/php-readability).
## Differences
The default php-readability lib is really old and needs to be improved. I found a great fork of [full-text-rss](http://fivefilters.org/content-only/) from @Dither which improve the Readability class.
- I've extracted the class from its fork to be able to use it out of the box
- I've added some simple tests
- and changed the CS, run `php-cs-fixer` and added a namespace
**But** the code is still really hard to understand / read ...
## Usage
```php
use Readability\Readability;
$url = 'http://www.medialens.org/index.php/alerts/alert-archive/alerts-2013/729-thatcher.html';
// you can use whatever you want to retrieve the html content (Guzzle, Buzz, cURL ...)
$html = file_get_contents($url);
$readability = new Readability($html, $url);
$result = $readability->init();
if ($result) {
// display the title of the page
echo $readability->getTitle()->textContent;
// display the *readability* content
echo $readability->getContent()->textContent;
} else {
echo 'Looks like we couldn\'t find the content. :(';
}
```
composer.json
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{
"name": "j0k3r/php-readability",
"type": "library",
"description": "Automatic article extraction from HTML",
"keywords": ["article extraction","content extraction","extraction","article","content","html"],
"license": "Apache-2.0",
"authors": [{
"name": "Jeremy Benoist",
"email": "jeremy.benoist@gmail.com",
"homepage": "http://www.j0k3r.net",
"role": "Developer"
},{
"name": "DitherSky",
"homepage": "https://github.com/Dither",
"role": "Developer (https://github.com/Dither/full-text-rss)"
},{
"name": "Keyvan Minoukadeh",
"email": "keyvan@keyvan.net",
"homepage": "http://keyvan.net",
"role": "Developer (ported original JS code to PHP)"
},{
"name": "Arc90",
"homepage": "http://arc90.com",
"role": "Developer (original JS version)"
}],
"require": {
"php": ">=5.2",
"ext-tidy": ">=1.2"
},
"autoload": {
"psr-4": { "Readability\\": "src/" }
}
}
phpunit.xml.dist
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<?xml version="1.0" encoding="UTF-8"?>
<phpunit backupGlobals="false"
backupStaticAttributes="false"
colors="true"
convertErrorsToExceptions="true"
convertNoticesToExceptions="true"
convertWarningsToExceptions="true"
processIsolation="false"
stopOnFailure="false"
syntaxCheck="false"
bootstrap="vendor/autoload.php"
>
<testsuites>
<testsuite name="Readability Test Suite">
<directory>./tests/</directory>
</testsuite>
</testsuites>
<filter>
<whitelist>
<directory>./src/TubeLink/</directory>
<exclude>
<directory>./tests</directory>
</exclude>
</whitelist>
</filter>
</phpunit>
src/JSLikeHTMLElement.php
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<?php
namespace Readability;
/**
* JavaScript-like HTML DOM Element
*
* This class extends PHP's DOMElement to allow
* users to get and set the innerHTML property of
* HTML elements in the same way it's done in
* JavaScript.
*
* Example usage:
* require_once 'JSLikeHTMLElement.php';
* header('Content-Type: text/plain');
* $doc = new DOMDocument();
* $doc->registerNodeClass('DOMElement', 'JSLikeHTMLElement');
* $doc->loadHTML('<div><p>Para 1</p><p>Para 2</p></div>');
* $elem = $doc->getElementsByTagName('div')->item(0);
*
* // print innerHTML
* echo $elem->innerHTML; // prints '<p>Para 1</p><p>Para 2</p>'
* echo "\n\n";
*
* // set innerHTML
* $elem->innerHTML = '<a href="http://fivefilters.org">FiveFilters.org</a>';
* echo $elem->innerHTML; // prints '<a href="http://fivefilters.org">FiveFilters.org</a>'
* echo "\n\n";
*
* // print document (with our changes)
* echo $doc->saveXML();
*
* @author Keyvan Minoukadeh - http://www.keyvan.net - keyvan@keyvan.net
* @see http://fivefilters.org (the project this was written for)
*/
class JSLikeHTMLElement extends \DOMElement
{
/**
* Used for setting innerHTML like it's done in JavaScript:
* @code
* $div->innerHTML = '<h2>Chapter 2</h2><p>The story begins...</p>';
* @endcode
*/
public function __set($name, $value)
{
if ($name == 'innerHTML') {
// first, empty the element
for ($x=$this->childNodes->length-1; $x>=0; $x--) {
$this->removeChild($this->childNodes->item($x));
}
// $value holds our new inner HTML
if ($value != '') {
$f = $this->ownerDocument->createDocumentFragment();
// appendXML() expects well-formed markup (XHTML)
$result = @$f->appendXML($value); // @ to suppress PHP warnings
if ($result) {
if ($f->hasChildNodes()) {
$this->appendChild($f);
}
} else {
// $value is probably ill-formed
$f = new \DOMDocument();
$value = mb_convert_encoding($value, 'HTML-ENTITIES', 'UTF-8');
// Using <htmlfragment> will generate a warning, but so will bad HTML
// (and by this point, bad HTML is what we've got).
// We use it (and suppress the warning) because an HTML fragment will
// be wrapped around <html><body> tags which we don't really want to keep.
// Note: despite the warning, if loadHTML succeeds it will return true.
$result = @$f->loadHTML('<htmlfragment>'.$value.'</htmlfragment>');
if ($result) {
$import = $f->getElementsByTagName('htmlfragment')->item(0);
foreach ($import->childNodes as $child) {
$importedNode = $this->ownerDocument->importNode($child, true);
$this->appendChild($importedNode);
}
} else {
// oh well, we tried, we really did. :(
// this element is now empty
}
}
}
} else {
$trace = debug_backtrace();
trigger_error('Undefined property via __set(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
}
}
/**
* Used for getting innerHTML like it's done in JavaScript:
* @code
* $string = $div->innerHTML;
* @endcode
*/
public function __get($name)
{
if ($name == 'innerHTML') {
$inner = '';
foreach ($this->childNodes as $child) {
$inner .= $this->ownerDocument->saveXML($child);
}
return $inner;
}
$trace = debug_backtrace();
trigger_error('Undefined property via __get(): '.$name.' in '.$trace[0]['file'].' on line '.$trace[0]['line'], E_USER_NOTICE);
return null;
}
public function __toString()
{
return '['.$this->tagName.']';
}
}
src/Readability.php
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tests/ReadabilityTest.php
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<?php
namespace Tests\Readability;
use Readability\Readability;
use Readability\JSLikeHTMLElement;
class ReadabilityTested extends Readability
{
public function getDebugText()
{
return $this->debugText;
}
public function getDomainRegexp()
{
return $this->domainRegExp;
}
}
class ReadabilityTest extends \PHPUnit_Framework_TestCase
{
protected function setUp()
{
}
protected function tearDown()
{
}
public function testConstructDefault()
{
$readability = new ReadabilityTested('');
$this->assertNull($readability->url);
$this->assertContains('Parsing URL', $readability->getDebugText());
$this->assertContains('Tidying document', $readability->getDebugText());
$this->assertNull($readability->getDomainRegexp());
$this->assertInstanceOf('DomDocument', $readability->dom);
}
public function testConstructSimple()
{
$readability = new ReadabilityTested('<html/>', 'http://0.0.0.0');
$this->assertEquals('http://0.0.0.0', $readability->url);
$this->assertContains('Parsing URL', $readability->getDebugText());
$this->assertContains('Tidying document', $readability->getDebugText());
$this->assertEquals('/0\.0\.0\.0/', $readability->getDomainRegexp());
$this->assertInstanceOf('DomDocument', $readability->dom);
}
public function testInitNoContent()
{
$readability = new ReadabilityTested('<html/>', 'http://0.0.0.0');
$res = $readability->init();
$this->assertFalse($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('Sorry, Readability was unable to parse this page for content.', $readability->getContent()->innerHTML);
}
public function testInitP()
{
$readability = new ReadabilityTested(str_repeat('<p>This is the awesome content :)</p>', 7), 'http://0.0.0.0');
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('<div readability=', $readability->getContent()->innerHTML);
$this->assertContains('This is the awesome content :)', $readability->getContent()->innerHTML);
}
public function testInitDivP()
{
$readability = new ReadabilityTested('<div>'.str_repeat('<p>This is the awesome content :)</p>', 7).'</div>', 'http://0.0.0.0');
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('<div readability=', $readability->getContent()->innerHTML);
$this->assertContains('This is the awesome content :)', $readability->getContent()->innerHTML);
}
public function testInitDiv()
{
$readability = new ReadabilityTested('<div>'.str_repeat('This is the awesome content :)', 7).'</div>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('<div readability=', $readability->getContent()->innerHTML);
$this->assertContains('This is the awesome content :)', $readability->getContent()->innerHTML);
}
public function testWithFootnotes()
{
$readability = new ReadabilityTested('<div>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'</div>', 'http://0.0.0.0');
$readability->debug = true;
$readability->convertLinksToFootnotes = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('<div readability=', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertContains('readabilityFootnoteLink', $readability->getContent()->innerHTML);
$this->assertContains('readabilityLink-3', $readability->getContent()->innerHTML);
}
public function testStandardClean()
{
$readability = new ReadabilityTested('<div><h2>Title</h2>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<a href="#nofollow" rel="nofollow">will be removed</a></div>', 'http://0.0.0.0');
$readability->debug = true;
$readability->lightClean = false;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('<div readability=', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertNotContains('will be removed', $readability->getContent()->innerHTML);
$this->assertNotContains('<h2>', $readability->getContent()->innerHTML);
}
public function testWithIframe()
{
$readability = new ReadabilityTested('<div><h2>Title</h2>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe><iframe>http://soundcloud.com/test</iframe></p></div>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('<div readability=', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertContains('nofollow', $readability->getContent()->innerHTML);
}
public function testWithArticle()
{
$readability = new ReadabilityTested('<article><p>'.str_repeat('This is an awesome text with some links, here there are: the awesome', 20).'</p><p>This is an awesome text with some links, here there are <iframe src="http://youtube.com/test" href="#nofollow" rel="nofollow"></iframe></p></article>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('alt="article"', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertContains('nofollow', $readability->getContent()->innerHTML);
}
public function testWithAside()
{
$readability = new ReadabilityTested('<article>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<footer><aside>'.str_repeat('<p>This is an awesome text with some links, here there are</p>', 8).'</aside></footer></article>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('alt="article"', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertNotContains('<aside>', $readability->getContent()->innerHTML);
$this->assertContains('<footer/>', $readability->getContent()->innerHTML);
}
public function testWithClasses()
{
$readability = new ReadabilityTested('<article>'.str_repeat('<p>This is an awesome text with some links, here there are: <a href="http://0.0.0.0/test.html">the awesome</a></p>', 7).'<div style="display:none">'.str_repeat('<p class="clock">This text should be removed</p>', 10).'</div></article>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('alt="article"', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertNotContains('This text should be removed', $readability->getContent()->innerHTML);
}
public function testWithTd()
{
$readability = new ReadabilityTested('<table><tr>'.str_repeat('<td><p>This is an awesome text with some links, here there are the awesome</td>', 7).'</tr></table>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('alt="tr"', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
}
public function testWithSameClasses()
{
$readability = new ReadabilityTested('<article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<div class="awesomecontent">This text is also an awesome text and you should know that !</div></article>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('alt="article"', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
}
public function testWithScript()
{
$readability = new ReadabilityTested('<article class="awesomecontent">'.str_repeat('<p>This is an awesome text with some links, here there are the awesome</p>', 7).'<p><script>This text is also an awesome text and you should know that !</script></p></article>', 'http://0.0.0.0');
$readability->debug = true;
$res = $readability->init();
$this->assertTrue($res);
$this->assertInstanceOf('Readability\JSLikeHTMLElement', $readability->getContent());
$this->assertContains('alt="article"', $readability->getContent()->innerHTML);
$this->assertContains('This is an awesome text with some links, here there are', $readability->getContent()->innerHTML);
$this->assertNotContains('This text is also an awesome text and you should know that', $readability->getContent()->innerHTML);
}
// public function testConstructParser()
// {
// $readability = new ReadabilityTested('<html/>', 'http://0.0.0.0', 'html5lib');
// $this->assertEquals('http://0.0.0.0', $readability->url);
// $this->assertContains('Parsing URL', $readability->getDebugText());
// $this->assertContains('Tidying document', $readability->getDebugText());
// $this->assertEquals('/0\.0\.0\.0/', $readability->getDomainRegexp());
// $this->assertInstanceOf('DomDocument', $readability->dom);
// }
}