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NEW Add getImageFromHtmlContent() method

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This commit is contained in:
Laurent Destailleur
2024-09-14 01:36:31 +02:00
parent 3ff6015b40
commit 3025f7ba25
3 changed files with 71 additions and 7 deletions
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57
htdocs/core/lib/website.lib.php
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@@ -985,7 +985,7 @@ function getSocialNetworkSharingLinks($socialnetworks = '')
/**
* Return HTML content to add structured data for an article, news or Blog Post.
* Return nb of images known into inde files for an object;
*
* @param Object $object Object
* @return int HTML img content or '' if no image found
@@ -1020,13 +1020,14 @@ function getNbOfImagePublicURLOfObject($object)
}
/**
* Return HTML content to add structured data for an article, news or Blog Post.
* Return the public image URL of an object.
* For example, you can get the public image URL of a product (image that is shared).
*
* @param Object $object Object
* @param int $no Numero of image (if there is several images. 1st one by default)
* @param string $extName Extension to differentiate thumb file name ('', '_small', '_mini')
* @return string HTML img content or '' if no image found
* @see getNbOfImagePublicURLOfObject()
* @see getNbOfImagePublicURLOfObject(), getPublicFilesOfObject()
*/
function getImagePublicURLOfObject($object, $no = 1, $extName = '')
{
@@ -1096,10 +1097,11 @@ function getImagePublicURLOfObject($object, $no = 1, $extName = '')
}
/**
* Return list of public files of a given object.
* Return array with list of all public files of a given object.
*
* @param Object $object Object
* @return array List of public files of object
* @see getImagePublicURLOfObject()
*/
function getPublicFilesOfObject($object)
{
@@ -1319,12 +1321,55 @@ function getPagesFromSearchCriterias($type, $algo, $searchstring, $max = 25, $so
}
/**
* Download all images found into page content $tmp.
* Return the URL of an image found into a HTML content.
* To get image from an external URL to download first, see getAllImages()
*
* @param string $htmlContent HTML content
* @param string $imageNumber The position of image. 1 by default = first image found
* @return string URL of image or '' if not foud
*/
function getImageFromHtmlContent($htmlContent, $imageNumber = 1)
{
$dom = new DOMDocument();
libxml_use_internal_errors(false); // Avoid to fill memory with xml errors
if (LIBXML_VERSION < 20900) {
// Avoid load of external entities (security problem).
// Required only if LIBXML_VERSION < 20900
// @phan-suppress-next-line PhanDeprecatedFunctionInternal
libxml_disable_entity_loader(true);
}
// Load HTML content into object
$dom->loadHTML($htmlContent);
// Re-enable HTML load errors
libxml_clear_errors();
// Load all img tags
$images = $dom->getElementsByTagName('img');
// Check if nb of image is valid
if ($imageNumber > 0 && $imageNumber <= $images->length) {
// Récupère l'image correspondante (index - 1 car $imageNumber est 1-based)
$img = $images->item($imageNumber - 1);
if ($img) {
return $img->getAttribute('src');
}
}
return '';
}
/**
* Download all images found into an external URL.
* It using a text regex parsing solution, not a DOM analysis.
* If $modifylinks is set, links to images will be replace with a link to viewimage wrapper.
* To extract an URL from a HTML text content, see instead getImageFromHtmlContent().
*
* @param Website $object Object website
* @param WebsitePage $objectpage Object website page
* @param string $urltograb URL to grab (example: http://www.nltechno.com/ or http://www.nltechno.com/dir1/ or http://www.nltechno.com/dir1/mapage1)
* @param string $urltograb URL to grab (example: https://www.nltechno.com/ or s://www.nltechno.com/dir1/ or https://www.nltechno.com/dir1/mapage1)
* @param string $tmp Content to parse
* @param string $action Var $action
* @param int $modifylinks 0=Do not modify content, 1=Replace links with a link to viewimage