Rss-Bridge/lib/html.php

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<?php
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/**
* This file is part of RSS-Bridge, a PHP project capable of generating RSS and
* Atom feeds for websites that don't have one.
*
* For the full license information, please view the UNLICENSE file distributed
* with this source code.
*
* @package Core
* @license http://unlicense.org/ UNLICENSE
* @link https://github.com/rss-bridge/rss-bridge
*/
/**
* Removes unwanted tags from a given HTML text.
*
* @param string $html The HTML text to sanitize.
* @param array $tags_to_remove A list of tags to remove from the DOM.
* @param array $attributes_to_keep A list of attributes to keep on tags (other
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* attributes are removed).
* @param array $text_to_keep A list of tags where the innertext replaces the tag
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* (i.e. `<p>Hello World!</p>` becomes `Hello World!`).
* @return object A simplehtmldom object of the remaining contents.
*
* @todo Check if this implementation is still necessary, because simplehtmldom
* already removes some of the tags (search for `remove_noise` in simple_html_dom.php).
*/
function sanitize($html,
$tags_to_remove = array('script', 'iframe', 'input', 'form'),
$attributes_to_keep = array('title', 'href', 'src'),
$text_to_keep = array()){
$htmlContent = str_get_html($html);
/*
* Notice: simple_html_dom currently doesn't support "->find(*)", which is a
* known issue: https://sourceforge.net/p/simplehtmldom/bugs/157/
*
* A solution to this is to find all nodes WITHOUT a specific attribute. If
* the attribute is very unlikely to appear in the DOM, this is essentially
* returning all nodes.
*
* "*[!b38fd2b1fe7f4747d6b1c1254ccd055e]" is doing exactly that. The attrib
* "b38fd2b1fe7f4747d6b1c1254ccd055e" is very unlikely to appear in any DOM.
*/
foreach($htmlContent->find('*[!b38fd2b1fe7f4747d6b1c1254ccd055e]') as $element) {
if(in_array($element->tag, $text_to_keep)) {
$element->outertext = $element->plaintext;
} elseif(in_array($element->tag, $tags_to_remove)) {
$element->outertext = '';
} else {
foreach($element->getAllAttributes() as $attributeName => $attribute) {
if(!in_array($attributeName, $attributes_to_keep))
$element->removeAttribute($attributeName);
}
}
}
return $htmlContent;
}
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/**
* Replace background by image
*
* Replaces tags with styles of `backgroud-image` by `<img />` tags.
*
* For example:
*
* ```HTML
* <html>
* <body style="background-image: url('bgimage.jpg');">
* <h1>Hello world!</h1>
* </body>
* </html>
* ```
*
* results in this output:
*
* ```HTML
* <html>
* <img style="display:block;" src="bgimage.jpg" />
* </html>
* ```
*
* @param string $htmlContent The HTML content
* @return string The HTML content with all ocurrences replaced
*/
function backgroundToImg($htmlContent) {
$regex = '/background-image[ ]{0,}:[ ]{0,}url\([\'"]{0,}(.*?)[\'"]{0,}\)/';
$htmlContent = str_get_html($htmlContent);
/*
* Notice: simple_html_dom currently doesn't support "->find(*)", which is a
* known issue: https://sourceforge.net/p/simplehtmldom/bugs/157/
*
* A solution to this is to find all nodes WITHOUT a specific attribute. If
* the attribute is very unlikely to appear in the DOM, this is essentially
* returning all nodes.
*
* "*[!b38fd2b1fe7f4747d6b1c1254ccd055e]" is doing exactly that. The attrib
* "b38fd2b1fe7f4747d6b1c1254ccd055e" is very unlikely to appear in any DOM.
*/
foreach($htmlContent->find('*[!b38fd2b1fe7f4747d6b1c1254ccd055e]') as $element) {
if(preg_match($regex, $element->style, $matches) > 0) {
$element->outertext = '<img style="display:block;" src="' . $matches[1] . '" />';
}
}
return $htmlContent;
}
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
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/**
* Convert relative links in HTML into absolute links
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*
* This function is based on `php-urljoin`.
*
* @link https://github.com/plaidfluff/php-urljoin php-urljoin
*
* @param string|object $content The HTML content. Supports HTML objects or string objects
* @param string $server Fully qualified URL to the page containing relative links
* @return object Content with fixed URLs.
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
*/
function defaultLinkTo($content, $server){
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
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$string_convert = false;
if (is_string($content)) {
$string_convert = true;
$content = str_get_html($content);
}
foreach($content->find('img') as $image) {
$image->src = urljoin($server, $image->src);
}
foreach($content->find('a') as $anchor) {
$anchor->href = urljoin($server, $anchor->href);
}
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
if ($string_convert) {
$content = $content->outertext;
}
return $content;
}
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
/**
* Extract the first part of a string matching the specified start and end delimiters
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*
* @param string $string Input string, e.g. `<div>Post author: John Doe</div>`
* @param string $start Start delimiter, e.g. `author: `
* @param string $end End delimiter, e.g. `<`
* @return string|bool Extracted string, e.g. `John Doe`, or false if the
* delimiters were not found.
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
*/
function extractFromDelimiters($string, $start, $end) {
if (strpos($string, $start) !== false) {
$section_retrieved = substr($string, strpos($string, $start) + strlen($start));
$section_retrieved = substr($section_retrieved, 0, strpos($section_retrieved, $end));
return $section_retrieved;
} return false;
}
/**
* Remove one or more part(s) of a string using a start and end delmiters
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*
* @param string $string Input string, e.g. `foo<script>superscript()</script>bar`
* @param string $start Start delimiter, e.g. `<script`
* @param string $end End delimiter, e.g. `</script>`
* @return string Cleaned string, e.g. `foobar`
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
*/
function stripWithDelimiters($string, $start, $end) {
while(strpos($string, $start) !== false) {
$section_to_remove = substr($string, strpos($string, $start));
$section_to_remove = substr($section_to_remove, 0, strpos($section_to_remove, $end) + strlen($end));
$string = str_replace($section_to_remove, '', $string);
}
return $string;
}
/**
* Remove HTML sections containing one or more sections using the same HTML tag
2018-11-16 21:48:59 +01:00
*
* @param string $string Input string, e.g. `foo<div class="ads"><div>ads</div>ads</div>bar`
* @param string $tag_name Name of the HTML tag, e.g. `div`
* @param string $tag_start Start of the HTML tag to remove, e.g. `<div class="ads">`
* @return string Cleaned String, e.g. `foobar`
*
* @todo This function needs more documentation to make it maintainable.
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
*/
function stripRecursiveHTMLSection($string, $tag_name, $tag_start){
$open_tag = '<' . $tag_name;
$close_tag = '</' . $tag_name . '>';
$close_tag_length = strlen($close_tag);
if(strpos($tag_start, $open_tag) === 0) {
while(strpos($string, $tag_start) !== false) {
$max_recursion = 100;
$section_to_remove = null;
$section_start = strpos($string, $tag_start);
$search_offset = $section_start;
do {
$max_recursion--;
$section_end = strpos($string, $close_tag, $search_offset);
$search_offset = $section_end + $close_tag_length;
$section_to_remove = substr($string, $section_start, $section_end - $section_start + $close_tag_length);
$open_tag_count = substr_count($section_to_remove, $open_tag);
$close_tag_count = substr_count($section_to_remove, $close_tag);
} while ($open_tag_count > $close_tag_count && $max_recursion > 0);
$string = str_replace($section_to_remove, '', $string);
}
}
return $string;
}
/**
2018-11-16 21:48:59 +01:00
* Convert Markdown into HTML. Only a subset of the Markdown syntax is implemented.
*
* @link https://daringfireball.net/projects/markdown/ Markdown
* @link https://github.github.com/gfm/ GitHub Flavored Markdown Spec
*
* @param string $string Input string in Markdown format
* @return string output string in HTML format
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
*/
function markdownToHtml($string) {
//For more details about how these regex work:
// https://github.com/RSS-Bridge/rss-bridge/pull/802#discussion_r216138702
// Images: https://regex101.com/r/JW9Evr/1
// Links: https://regex101.com/r/eRGVe7/1
// Bold: https://regex101.com/r/2p40Y0/1
// Italic: https://regex101.com/r/xJkET9/1
// Separator: https://regex101.com/r/ZBEqFP/1
// Plain URL: https://regex101.com/r/2JHYwb/1
// Site name: https://regex101.com/r/qIuKYE/1
$string = preg_replace('/\!\[([^\]]+)\]\(([^\) ]+)(?: [^\)]+)?\)/', '<img src="$2" alt="$1" />', $string);
$string = preg_replace('/\[([^\]]+)\]\(([^\)]+)\)/', '<a href="$2">$1</a>', $string);
$string = preg_replace('/\*\*(.*)\*\*/U', '<b>$1</b>', $string);
$string = preg_replace('/\*(.*)\*/U', '<i>$1</i>', $string);
$string = preg_replace('/__(.*)__/U', '<b>$1</b>', $string);
$string = preg_replace('/_(.*)_/U', '<i>$1</i>', $string);
$string = preg_replace('/[-]{6,99}/', '<hr />', $string);
$string = str_replace('&#10;', '<br />', $string);
2018-11-05 12:55:58 +01:00
$string = preg_replace('/([^"])(https?:\/\/[^ "<]+)([^"])/', '$1<a href="$2">$2</a>$3', $string . ' ');
$string = preg_replace('/([^"\/])(www\.[^ "<]+)([^"])/', '$1<a href="http://$2">$2</a>$3', $string . ' ');
Catching up | [Main] Debug mode, parse utils, MIME | [Bridges] Add/Improve 20 bridges (#802) * Debug mode improvements - Improve debug warning message - Restore error reporting in debug mode - Fix 'notice' messages for unset fields * Add parsing utility functions html.php - extractFromDelimiters - stripWithDelimiters - stripRecursiveHTMLSection - markdownToHtml (partial) bridges - remove now-duplicate functions - call functions from html.php instead * [Anidex] New bridge Anime torrent tracker * [Anime-Ultime] Restore thumbnail * [CNET] Recreate bridge Full rewrite as the previous one was broken * [Dilbert] Minor URI fix Use new self::URI property * [EstCeQuonMetEnProd] Fix content extraction Bridge was broken * [Facebook] Fix "SpSonsSoriSsés" label ... which was taking space in item title * [Futura-Sciences] Use HTTPS, More cleanup Use HTTPS as FS now offer HTTPS Clean additional useless HTML elements * [GBATemp] Multiple fixes - Fix categories: missing "break" statements - Restore thumbnail as enclosure - Fix date extraction - Fix user blog post extraction - Use getSimpleHTMLDOMCached * [JapanExpo] Fix bridge, HTTPS, thumbnails - Fix getSimpleHTMLDOMCached call - Upgrade to HTTPS as JE now offers HTTPS - Restore thumbnails as enclosures * [LeMondeInformatique] Fix bridge, HTTPS - Upgrade to HTTPS as LMI now offers HTTPS - Restore thumbnails using small images - Fix content extraction - Fix text encoding issue * [Nextgov] Fix content extraction - Restore thumbnail and use small image - Field extraction fixes * [NextInpact] Add categories and filtering by type - Offer all RSS feeds - Allow filtering by article type - Implement extraction for brief articles - Remove article limit, many brief articles are publied all at once * [NyaaTorrents] New bridge Anime torrent tracker * [Releases3DS] Cache content, restore thumbnail - Use getSimpleHTMLDOMCached - Restore thumbnail as enclosure * [TheHackerNews] Fix bridge - Fix content extraction including article body - Restore thumbnail as enclosure * [WeLiveSecurity] HTTPS, Fix content extraction - Upgrade to HTTPS as WLS now offers HTTPS - Fix content extraction including article body * [WordPress] Reduce timeout, more content selectors - Reduce timeout to use default one (1h) - Add new content selector (articleBody) - Find thumbnail and set as enclosure - Fix <script> cleanup * [YGGTorrent] Increase limit, use cache - Increase item limit as uploads are very frequent - Use getSimpleHTMLDOMCached * [ZDNet] Rewrite with FeedExpander - Upgrade to HTTPS as ZD now offers HTTPS - Use FeedExpander for secondary fields - Fix content extraction for article body * [Main] Handle MIME type for enclosures Many feed readers will ignore enclosures (e.g. thumbnails) with no MIME type. This commit adds automatic MIME type detection based on file extension (which may be inaccurate but is the only way without fetching the content). One can force enclosure type using #.ext anchor (hacky, needs improving) * [FeedExpander] Improve field extraction - Add support for passing enclosures - Improve author and uri extraction - Fix 'notice' PHP error messages * [Pull] Coding style fixes for #802 * [Pull] Implementing changes for #802 - Fix coding style issues with str append - Remove useless CACHE_TIMEOUT - Use count() instead of $limit - Use defaultLinkTo() + handle strings - Use http_build_query() - Fix missing </em> - Remove error_reporting(0) - warning CSS (@LogMANOriginal) - Fix typo in FeedExpander comment * [Main] More documentation for markdownToHtml See #802 for more details
2018-09-09 21:20:13 +02:00
//As the regex are not perfect, we need to fix <i> and </i> that are introduced in URLs
// Fixup regex <i>: https://regex101.com/r/NTRPf6/1
// Fixup regex </i>: https://regex101.com/r/aNklRp/1
$count = 1;
while($count > 0) {
$string = preg_replace('/ (src|href)="([^"]+)<i>([^"]+)"/U', ' $1="$2_$3"', $string, -1, $count);
}
$count = 1;
while($count > 0) {
$string = preg_replace('/ (src|href)="([^"]+)<\/i>([^"]+)"/U', ' $1="$2_$3"', $string, -1, $count);
}
return '<div>' . trim($string) . '</div>';
}