diff --git a/CHANGELOG.md b/CHANGELOG.md
index 206af61..8f459ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+# v1.4.3
+## 10/31/2016
+
+3. [](#bugfix)
+ * Fixed [#11](https://github.com/Sommerregen/grav-plugin-external-links/issues/11) (Not working with cache enabling) (see PR [#15](https://github.com/Sommerregen/grav-plugin-external-links/pull/15))
+ * Fixed [#13](https://github.com/Sommerregen/grav-plugin-external-links/issues/13) (Preferences Not Showing)
+
# v1.4.2
## 12/06/2015
diff --git a/LICENSE b/LICENSE
index 731ce27..e9bda35 100644
--- a/LICENSE
+++ b/LICENSE
@@ -27,7 +27,7 @@ using Grav External Links Plugin in any way.
MIT LICENSE
-----------
-Copyright (c) 2015 Benjamin Regler, https://github.com/sommerregen/grav-plugin-external-links
+Copyright (c) 2016 Benjamin Regler, https://github.com/sommerregen/grav-plugin-external-links
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index f5b9fd4..ccff283 100644
--- a/README.md
+++ b/README.md
@@ -179,7 +179,7 @@ Thanks!
## License
-Copyright (c) 2015 [Benjamin Regler][github]. See also the list of [contributors] who participated in this project.
+Copyright (c) 2016 [Benjamin Regler][github]. See also the list of [contributors] who participated in this project.
[Dual-licensed](LICENSE) for use under the terms of the [MIT][mit-license] or [GPLv3][gpl-license] licenses.
diff --git a/blueprints.yaml b/blueprints.yaml
index c9c1c37..c383828 100644
--- a/blueprints.yaml
+++ b/blueprints.yaml
@@ -1,5 +1,5 @@
name: External Links
-version: 1.4.2
+version: 1.4.3
description: "This plugin adds small icons to external and mailto links, informing users the link will take them to a new site or open their email client."
icon: external-link
author:
diff --git a/classes/ExternalLinks.php b/classes/ExternalLinks.php
index 312f324..6ff840d 100644
--- a/classes/ExternalLinks.php
+++ b/classes/ExternalLinks.php
@@ -11,7 +11,7 @@
namespace Grav\Plugin;
use Grav\Common\Utils;
-use Grav\Common\GravTrait;
+use Grav\Common\Grav;
/**
* External Links
@@ -21,465 +21,464 @@
*/
class ExternalLinks
{
- /**
- * @var ExternalLinks
- */
- use GravTrait;
-
- /** -------------
- * Public methods
- * --------------
- */
-
- /**
- * Process contents i.e. apply filer to the content.
- *
- * @param string $content The content to render.
- * @param array $options Options to be passed to the renderer.
- * @param null|Page $page Null or an instance of \Grav\Common\Page.
- *
- * @return string The rendered contents.
- */
- public function render($content, $options = [], $page = null)
- {
- // Get all tags and process them
- $content = preg_replace_callback('~]*>.*?~i',
- function($match) use ($options, $page) {
- // Load PHP built-in DOMDocument class
- if (($dom = $this->loadDOMDocument($match[0])) === null) {
- return $match[0];
- }
+ /**
+ * @var ExternalLinks
+ */
+
+ /** -------------
+ * Public methods
+ * --------------
+ */
+
+ /**
+ * Process contents i.e. apply filer to the content.
+ *
+ * @param string $content The content to render.
+ * @param array $options Options to be passed to the renderer.
+ * @param null|Page $page Null or an instance of \Grav\Common\Page.
+ *
+ * @return string The rendered contents.
+ */
+ public function render($content, $options = [], $page = null)
+ {
+ // Get all tags and process them
+ $content = preg_replace_callback('~]*>.*?~i',
+ function($match) use ($options, $page) {
+ // Load PHP built-in DOMDocument class
+ if (($dom = $this->loadDOMDocument($match[0])) === null) {
+ return $match[0];
+ }
+
+ $a = $dom->getElementsByTagName('a')->item(0);
+
+ // Process links with non-empty href attribute
+ $href = $a->getAttribute('href');
+ if (strlen($href) == 0) {
+ return $match[0];
+ }
+
+ // Get the class of the element
+ $class = $a->hasAttribute('class') ? $a->getAttribute('class') : '';
+ $classes = array_filter(explode(' ', $class));
+
+ // Exclude links with specific class from processing
+ $exclude = $options->get('exclude.classes', null);
+ if ($exclude && !!array_intersect($exclude, $classes)) {
+ return $match[0];
+ }
+
+ // Get domains to be seen as internal
+ $domains = $options->get('exclude.domains', []);
+
+ // This is a mailto link.
+ if (strpos($href, 'mailto:') === 0) {
+ $classes[] = 'mailto';
+ }
+
+ // The link is external
+ elseif ($url = $this->isExternalUrl($href, $domains, $page)) {
+ // Add external class
+ $classes[] = 'external-link';
+ $a->setAttribute('href', $url);
+
+ // Add target="_blank"
+ $target = $options->get('target');
+ if ($target) {
+ $a->setAttribute('target', $target);
+ }
+
+ // Add no-follow.
+ $nofollow = $options->get('no_follow');
+ if ($nofollow) {
+ $rel = array_filter(explode(' ', $a->getAttribute('rel')));
+ if (!in_array('nofollow', $rel)) {
+ $rel[] = 'nofollow';
+ $a->setAttribute('rel', implode(' ', $rel));
+ }
+ }
+
+ // Add image class to if it has at least one ![]()
child element
+ $imgs = $a->getElementsByTagName('img');
+ if ($imgs->length > 1) {
+ // Add "images" class to element, if it has multiple child images
+ $classes[] = 'images';
+ } elseif ($imgs->length == 1) {
+ $imgNode = $imgs->item(0);
+
+ // Get image size
+ list($width, $height) = $this->getImageSize($imgNode);
+
+ // Determine maximum dimension of image size
+ $size = max($width, $height);
+
+ // Depending on size determine image type
+ $classes[] = ((0 < $size) && ($size <= 32)) ? 'icon' : 'image';
+ } else {
+ // Add "no-image" class to element, if it has no child images
+ $classes[] = 'no-image';
+ }
+
+ // Add title (aka alert text)
+ if ($options->get('title')) {
+ $language = Grav::instance()['language'];
+ $message = $language->translate(['PLUGINS.EXTERNAL_LINKS.TITLE_MESSAGE']);
+
+ // Set default title to link else, set title as data attribute
+ $key = $a->hasAttribute('title') ? 'data-title' : 'title';
+ $a->setAttribute($key, $message);
+ }
+ }
- $a = $dom->getElementsByTagName('a')->item(0);
+ // Set class attribute
+ if (count($classes) && ($options->get('mode') === 'active')) {
+ $a->setAttribute('class', implode(' ', $classes));
+ }
- // Process links with non-empty href attribute
- $href = $a->getAttribute('href');
- if (strlen($href) == 0) {
- return $match[0];
- }
+ // Save Dom document back to HTML representation
+ $html = $this->saveDOMDocument($dom);
+ return $html;
+ }, $content);
- // Get the class of the element
- $class = $a->hasAttribute('class') ? $a->getAttribute('class') : '';
- $classes = array_filter(explode(' ', $class));
+ // Write content back to page
+ return $content;
+ }
- // Exclude links with specific class from processing
- $exclude = $options->get('exclude.classes', null);
- if ($exclude && !!array_intersect($exclude, $classes)) {
- return $match[0];
+ /** -------------------------------
+ * Private/protected helper methods
+ * --------------------------------
+ */
+
+ /**
+ * Test if a URL is external
+ *
+ * @param string $url The URL to test.
+ * @param array $domains An array of domains to be seen as internal.
+ * @param null|Page $page Null or an instance of \Grav\Common\Page.
+ *
+ * @return mixed Returns the URL as a string, if it is external,
+ * false otherwise.
+ */
+ protected function isExternalUrl($url, $domains = [], $page = null)
+ {
+ static $allowed_protocols;
+ static $pattern;
+
+ /** @var Config $config */
+ $config = Grav::instance()['config'];
+
+ /** @var Page $page */
+ $page = $page ?: Grav::instance()['page'];
+
+ // Statically store allowed protocols
+ if (!isset($allowed_protocols)) {
+ $allowed_protocols = array_flip(
+ $config->get('plugins.external_links.links.schemes', ['http', 'https'])
+ );
}
- // Get domains to be seen as internal
- $domains = $options->get('exclude.domains', []);
+ // Statically store internal domains as a PCRE pattern.
+ if (!isset($pattern) || (count($domains) > 0)) {
+ $domains = array_merge($domains,
+ array(Grav::instance()['base_url_absolute']));
- // This is a mailto link.
- if (strpos($href, 'mailto:') === 0) {
- $classes[] = 'mailto';
- }
-
- // The link is external
- elseif ($url = $this->isExternalUrl($href, $domains, $page)) {
- // Add external class
- $classes[] = 'external-link';
- $a->setAttribute('href', $url);
-
- // Add target="_blank"
- $target = $options->get('target');
- if ($target) {
- $a->setAttribute('target', $target);
- }
-
- // Add no-follow.
- $nofollow = $options->get('no_follow');
- if ($nofollow) {
- $rel = array_filter(explode(' ', $a->getAttribute('rel')));
- if (!in_array('nofollow', $rel)) {
- $rel[] = 'nofollow';
- $a->setAttribute('rel', implode(' ', $rel));
+ foreach ($domains as $domain) {
+ $domains[] = preg_quote($domain, '#');
}
- }
-
- // Add image class to if it has at least one ![]()
child element
- $imgs = $a->getElementsByTagName('img');
- if ($imgs->length > 1) {
- // Add "images" class to element, if it has multiple child images
- $classes[] = 'images';
- } elseif ($imgs->length == 1) {
- $imgNode = $imgs->item(0);
-
- // Get image size
- list($width, $height) = $this->getImageSize($imgNode);
-
- // Determine maximum dimension of image size
- $size = max($width, $height);
-
- // Depending on size determine image type
- $classes[] = ((0 < $size) && ($size <= 32)) ? 'icon' : 'image';
- } else {
- // Add "no-image" class to element, if it has no child images
- $classes[] = 'no-image';
- }
-
- // Add title (aka alert text)
- if ($options->get('title')) {
- $language = self::getGrav()['language'];
- $message = $language->translate(['PLUGINS.EXTERNAL_LINKS.TITLE_MESSAGE']);
-
- // Set default title to link else, set title as data attribute
- $key = $a->hasAttribute('title') ? 'data-title' : 'title';
- $a->setAttribute($key, $message);
- }
+ $pattern = '#(' . str_replace(array('\*', '/*'), '.*?',
+ implode('|', $domains)) . ')#i';
}
- // Set class attribute
- if (count($classes) && ($options->get('mode') === 'active')) {
- $a->setAttribute('class', implode(' ', $classes));
+ $external = false;
+ // Check for URLs that don't match any excluded domain
+ if (!preg_match($pattern, $url)) {
+ // Check if URL is external by extracting colon position
+ $colonpos = strpos($url, ':');
+ if ($colonpos > 0) {
+ // We found a colon, possibly a protocol. Verify.
+ $protocol = strtolower(substr($url, 0, $colonpos));
+ if (isset($allowed_protocols[$protocol])) {
+ // The protocol turns out be an allowed protocol
+ $external = $url;
+ }
+ } elseif ($config->get('plugins.external_links.links.www')) {
+ // Remove possible path duplicate
+ $route = Grav::instance()['base_url'] . $page->route();
+ $href = Utils::startsWith($url, $route)
+ ? ltrim(mb_substr($url, mb_strlen($route)), '/')
+ : $url;
+
+ // We found an url without protocol, but with starting 'www' (sub-)domain
+ if (Utils::startsWith($url, 'www.')) {
+ $external = 'http://' . $url;
+ } elseif (Utils::startsWith($href, 'www.')) {
+ $external = 'http://' . $href;
+ }
+ }
}
- // Save Dom document back to HTML representation
- $html = $this->saveDOMDocument($dom);
- return $html;
- }, $content);
-
- // Write content back to page
- return $content;
- }
-
- /** -------------------------------
- * Private/protected helper methods
- * --------------------------------
- */
-
- /**
- * Test if a URL is external
- *
- * @param string $url The URL to test.
- * @param array $domains An array of domains to be seen as internal.
- * @param null|Page $page Null or an instance of \Grav\Common\Page.
- *
- * @return mixed Returns the URL as a string, if it is external,
- * false otherwise.
- */
- protected function isExternalUrl($url, $domains = [], $page = null)
- {
- static $allowed_protocols;
- static $pattern;
-
- /** @var Config $config */
- $config = self::getGrav()['config'];
-
- /** @var Page $page */
- $page = $page ?: self::getGrav()['page'];
-
- // Statically store allowed protocols
- if (!isset($allowed_protocols)) {
- $allowed_protocols = array_flip(
- $config->get('plugins.external_links.links.schemes', ['http', 'https'])
- );
+ // Only if a valid protocol or an URL starting with 'www.' was found return true
+ return $external;
}
- // Statically store internal domains as a PCRE pattern.
- if (!isset($pattern) || (count($domains) > 0)) {
- $domains = array_merge($domains,
- array(self::getGrav()['base_url_absolute']));
+ /**
+ * Determine the size of an image
+ *
+ * @param DOMNode $imgNode The image already parsed as a DOMNode
+ * @param integer $limit Load first $limit KB of remote image
+ *
+ * @return array Return the dimension of the image of the
+ * format array(width, height)
+ */
+ protected function getImageSize($imgNode, $limit = 32)
+ {
+ // Hold units (assume standard font with 16px base pixel size)
+ // Calculations based on pixels
+ $units = array(
+ 'px' => 1, /* base unit: pixel */
+ 'pt' => 16 / 12, /* 12 point = 16 pixel = 1/72 inch */
+ 'pc' => 16, /* 1 pica = 16 pixel = 12 points */
+
+ 'in' => 96, /* 1 inch = 96 pixel = 2.54 centimeters */
+ 'mm' => 96 / 25.4, /* 1 millimeter = 96 pixel / 1 inch [mm] */
+ 'cm' => 96 / 2.54, /* 1 centimeter = 96 pixel / 1 inch [cm] */
+ 'm' => 96 / 0.0254, /* 1 centimeter = 96 pixel / 1 inch [m] */
+
+ 'ex' => 7, /* 1 ex = 7 pixel */
+ 'em' => 16, /* 1 em = 16 pixel */
+ 'rem' => 16, /* 1 rem = 16 pixel */
+
+ '%' => 16 / 100, /* 100 percent = 16 pixel */
+ );
+
+ // Initialize dimensions
+ $width = 0;
+ $height = 0;
+
+ // Determine image dimensions based on "src" atrribute
+ if ($imgNode->hasAttribute('src')) {
+ $src = $imgNode->getAttribute('src');
+
+ // Simple check if the URL is internal i.e. check if path exists
+ $path = $_SERVER['DOCUMENT_ROOT'] . $src;
+ if (realpath($path) && is_file($path)) {
+ $size = @getimagesize($path);
+ } else {
+ // The URL is external; try to load it (default: 32 KB)
+ $size = $this->getRemoteImageSize($src, $limit * 1024);
+ }
+ }
- foreach ($domains as $domain) {
- $domains[] = preg_quote($domain, '#');
- }
- $pattern = '#(' . str_replace(array('\*', '/*'), '.*?',
- implode('|', $domains)) . ')#i';
- }
+ // Read out width and height from ![]()
attributes
+ $width = $imgNode->hasAttribute('width') ?
+ $imgNode->getAttribute('width') : $size[0];
+ $height = $imgNode->hasAttribute('height') ?
+ $imgNode->getAttribute('height') : $size[1];
+
+ // Get width and height from style attribute
+ if ( $imgNode->hasAttribute('style') ) {
+ $style = $imgNode->getAttribute('style');
+
+ // Width
+ if (preg_match('~width:\s*(\d+)([a-z]+)~i', $style, $matches)) {
+ $width = $matches[1];
+ // Convert unit to pixel
+ if ( isset($units[$matches[2]]) ) {
+ $width *= $units[$matches[2]];
+ }
+ }
- $external = false;
- // Check for URLs that don't match any excluded domain
- if (!preg_match($pattern, $url)) {
- // Check if URL is external by extracting colon position
- $colonpos = strpos($url, ':');
- if ($colonpos > 0) {
- // We found a colon, possibly a protocol. Verify.
- $protocol = strtolower(substr($url, 0, $colonpos));
- if (isset($allowed_protocols[$protocol])) {
- // The protocol turns out be an allowed protocol
- $external = $url;
- }
- } elseif ($config->get('plugins.external_links.links.www')) {
- // Remove possible path duplicate
- $route = self::getGrav()['base_url'] . $page->route();
- $href = Utils::startsWith($url, $route)
- ? ltrim(mb_substr($url, mb_strlen($route)), '/')
- : $url;
-
- // We found an url without protocol, but with starting 'www' (sub-)domain
- if (Utils::startsWith($url, 'www.')) {
- $external = 'http://' . $url;
- } elseif (Utils::startsWith($href, 'www.')) {
- $external = 'http://' . $href;
+ // Height
+ if (preg_match('~height:\s*(\d+)([a-z]+)~i', $style, $matches)) {
+ $height = $matches[1];
+ // Convert unit to pixel
+ if (isset($units[$matches[2]])) {
+ $height *= $units[$matches[2]];
+ }
+ }
}
- }
- }
- // Only if a valid protocol or an URL starting with 'www.' was found return true
- return $external;
- }
-
- /**
- * Determine the size of an image
- *
- * @param DOMNode $imgNode The image already parsed as a DOMNode
- * @param integer $limit Load first $limit KB of remote image
- *
- * @return array Return the dimension of the image of the
- * format array(width, height)
- */
- protected function getImageSize($imgNode, $limit = 32)
- {
- // Hold units (assume standard font with 16px base pixel size)
- // Calculations based on pixels
- $units = array(
- 'px' => 1, /* base unit: pixel */
- 'pt' => 16 / 12, /* 12 point = 16 pixel = 1/72 inch */
- 'pc' => 16, /* 1 pica = 16 pixel = 12 points */
-
- 'in' => 96, /* 1 inch = 96 pixel = 2.54 centimeters */
- 'mm' => 96 / 25.4, /* 1 millimeter = 96 pixel / 1 inch [mm] */
- 'cm' => 96 / 2.54, /* 1 centimeter = 96 pixel / 1 inch [cm] */
- 'm' => 96 / 0.0254, /* 1 centimeter = 96 pixel / 1 inch [m] */
-
- 'ex' => 7, /* 1 ex = 7 pixel */
- 'em' => 16, /* 1 em = 16 pixel */
- 'rem' => 16, /* 1 rem = 16 pixel */
-
- '%' => 16 / 100, /* 100 percent = 16 pixel */
- );
-
- // Initialize dimensions
- $width = 0;
- $height = 0;
-
- // Determine image dimensions based on "src" atrribute
- if ($imgNode->hasAttribute('src')) {
- $src = $imgNode->getAttribute('src');
-
- // Simple check if the URL is internal i.e. check if path exists
- $path = $_SERVER['DOCUMENT_ROOT'] . $src;
- if (realpath($path) && is_file($path)) {
- $size = @getimagesize($path);
- } else {
- // The URL is external; try to load it (default: 32 KB)
- $size = $this->getRemoteImageSize($src, $limit * 1024);
- }
+ // Update width and height
+ $size[0] = $width;
+ $size[1] = $height;
+
+ // Return image dimensions
+ return $size;
}
- // Read out width and height from ![]()
attributes
- $width = $imgNode->hasAttribute('width') ?
- $imgNode->getAttribute('width') : $size[0];
- $height = $imgNode->hasAttribute('height') ?
- $imgNode->getAttribute('height') : $size[1];
-
- // Get width and height from style attribute
- if ( $imgNode->hasAttribute('style') ) {
- $style = $imgNode->getAttribute('style');
-
- // Width
- if (preg_match('~width:\s*(\d+)([a-z]+)~i', $style, $matches)) {
- $width = $matches[1];
- // Convert unit to pixel
- if ( isset($units[$matches[2]]) ) {
- $width *= $units[$matches[2]];
+ /**
+ * Get the size of a remote image
+ *
+ * @param string $uri The URI of the remote image
+ * @param integer $limit Load first $limit bytes of remote image
+ *
+ * @return mixed Returns an array with up to 7 elements
+ */
+ protected function getRemoteImageSize($uri, $limit = -1)
+ {
+ // Create temporary file to store data from $uri
+ $tmp_name = tempnam(sys_get_temp_dir(), uniqid('ris'));
+ if ($tmp_name === false) {
+ return false;
}
- }
-
- // Height
- if (preg_match('~height:\s*(\d+)([a-z]+)~i', $style, $matches)) {
- $height = $matches[1];
- // Convert unit to pixel
- if (isset($units[$matches[2]])) {
- $height *= $units[$matches[2]];
+
+ // Open temporary file
+ $tmp = fopen($tmp_name, 'rb');
+
+ // Check which method we should use to get remote image sizes
+ $allow_url_fopen = ini_get('allow_url_fopen') ? true : false;
+ $use_curl = function_exists('curl_version');
+
+ // Use stream copy
+ if ($allow_url_fopen) {
+ $options = [];
+ if ( $limit > 0 ) {
+ // Loading number of $limit bytes
+ $options['http']['header'] = array('Range: bytes=0-' . $limit);
+ }
+
+ // Create stream context
+ $context = stream_context_create($options);
+ @copy($uri, $tmp_name, $context);
+
+ // Use Curl
+ } elseif ($use_curl) {
+ // Initialize Curl
+ $options = array(
+ CURLOPT_HEADER => false, // Don't return headers
+ CURLOPT_FOLLOWLOCATION => true, // Follow redirects
+ CURLOPT_AUT||EFERER => true, // Set referrer on redirect
+ CURLOPT_CONNECTTIMEOUT => 120, // Timeout on connect
+ CURLOPT_TIMEOUT => 120, // Timeout on response
+ CURLOPT_MAXREDIRS => 10, // Stop after 10 redirects
+ CURLOPT_ENCODING => '', // Handle all encodings
+ CURLOPT_BINARYTRANSFER => true, // Transfer as binary file
+ CURLOPT_FILE => $tmp, // Curl file
+ CURLOPT_URL => $uri, // URI
+ );
+
+ $curl = curl_init();
+ curl_setopt_array($curl, $options);
+
+ if ( $limit > 0 ) {
+ // Loading number of $limit
+ $headers = array('Range: bytes=0-' . $limit);
+ curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
+ curl_setopt($curl, CURLOPT_RANGE, '0-' . $limit);
+
+ // Abort request when more data is received
+ curl_setopt($curl, CURLOPT_BUFFERSIZE, 512); // More progress info
+ curl_setopt($curl, CURLOPT_NOPROGRESS, false); // Monitor progress
+ curl_setopt($curl, CURLOPT_PROGRESSFUNCTION,
+ function($download_size, $downloaded, $upload_size, $uploaded) use ($limit) {
+ // If $downloaded exceeds $limit, returning non-zero breaks
+ // the connection!
+ return ( $downloaded > $limit ) ? 1 : 0;
+ });
+ }
+
+ // Execute Curl
+ curl_exec($curl);
+ curl_close($curl);
}
- }
- }
- // Update width and height
- $size[0] = $width;
- $size[1] = $height;
-
- // Return image dimensions
- return $size;
- }
-
- /**
- * Get the size of a remote image
- *
- * @param string $uri The URI of the remote image
- * @param integer $limit Load first $limit bytes of remote image
- *
- * @return mixed Returns an array with up to 7 elements
- */
- protected function getRemoteImageSize($uri, $limit = -1)
- {
- // Create temporary file to store data from $uri
- $tmp_name = tempnam(sys_get_temp_dir(), uniqid('ris'));
- if ($tmp_name === false) {
- return false;
- }
+ // Close temporary file
+ fclose($tmp);
- // Open temporary file
- $tmp = fopen($tmp_name, 'rb');
-
- // Check which method we should use to get remote image sizes
- $allow_url_fopen = ini_get('allow_url_fopen') ? true : false;
- $use_curl = function_exists('curl_version');
-
- // Use stream copy
- if ($allow_url_fopen) {
- $options = [];
- if ( $limit > 0 ) {
- // Loading number of $limit bytes
- $options['http']['header'] = array('Range: bytes=0-' . $limit);
- }
-
- // Create stream context
- $context = stream_context_create($options);
- @copy($uri, $tmp_name, $context);
-
- // Use Curl
- } elseif ($use_curl) {
- // Initialize Curl
- $options = array(
- CURLOPT_HEADER => false, // Don't return headers
- CURLOPT_FOLLOWLOCATION => true, // Follow redirects
- CURLOPT_AUT||EFERER => true, // Set referrer on redirect
- CURLOPT_CONNECTTIMEOUT => 120, // Timeout on connect
- CURLOPT_TIMEOUT => 120, // Timeout on response
- CURLOPT_MAXREDIRS => 10, // Stop after 10 redirects
- CURLOPT_ENCODING => '', // Handle all encodings
- CURLOPT_BINARYTRANSFER => true, // Transfer as binary file
- CURLOPT_FILE => $tmp, // Curl file
- CURLOPT_URL => $uri, // URI
- );
-
- $curl = curl_init();
- curl_setopt_array($curl, $options);
-
- if ( $limit > 0 ) {
- // Loading number of $limit
- $headers = array('Range: bytes=0-' . $limit);
- curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
- curl_setopt($curl, CURLOPT_RANGE, '0-' . $limit);
-
- // Abort request when more data is received
- curl_setopt($curl, CURLOPT_BUFFERSIZE, 512); // More progress info
- curl_setopt($curl, CURLOPT_NOPROGRESS, false); // Monitor progress
- curl_setopt($curl, CURLOPT_PROGRESSFUNCTION,
- function($download_size, $downloaded, $upload_size, $uploaded) use ($limit) {
- // If $downloaded exceeds $limit, returning non-zero breaks
- // the connection!
- return ( $downloaded > $limit ) ? 1 : 0;
- });
- }
-
- // Execute Curl
- curl_exec($curl);
- curl_close($curl);
- }
+ // Retrieve image information
+ $info = array(0, 0, 'width="0" height="0"');
+ if (filesize($tmp_name) > 0) {
+ $info = @getimagesize($tmp_name);
+ }
- // Close temporary file
- fclose($tmp);
+ // Delete temporary file
+ unlink($tmp_name);
- // Retrieve image information
- $info = array(0, 0, 'width="0" height="0"');
- if (filesize($tmp_name) > 0) {
- $info = @getimagesize($tmp_name);
+ return $info;
}
- // Delete temporary file
- unlink($tmp_name);
-
- return $info;
- }
-
- /**
- * Load contents into PHP built-in DOMDocument object
- *
- * Two Really good resources to handle DOMDocument with HTML(5)
- * correctly.
- *
- * @see http://stackoverflow.com/questions/3577641/how-do-you-parse-and-process-html-xml-in-php
- * @see http://stackoverflow.com/questions/7997936/how-do-you-format-dom-structures-in-php
- *
- * @param string $content The content to be loaded into the
- * DOMDocument object
- *
- * @return DOMDocument DOMDocument object of content
- */
- protected function loadDOMDocument($content)
- {
- // Clear previous errors
- if (libxml_use_internal_errors(true) === true) {
- libxml_clear_errors();
- }
+ /**
+ * Load contents into PHP built-in DOMDocument object
+ *
+ * Two Really good resources to handle DOMDocument with HTML(5)
+ * correctly.
+ *
+ * @see http://stackoverflow.com/questions/3577641/how-do-you-parse-and-process-html-xml-in-php
+ * @see http://stackoverflow.com/questions/7997936/how-do-you-format-dom-structures-in-php
+ *
+ * @param string $content The content to be loaded into the
+ * DOMDocument object
+ *
+ * @return DOMDocument DOMDocument object of content
+ */
+ protected function loadDOMDocument($content)
+ {
+ // Clear previous errors
+ if (libxml_use_internal_errors(true) === true) {
+ libxml_clear_errors();
+ }
- // Parse content using PHP built-in DOMDocument class
- $document = new \DOMDocument('1.0', 'UTF-8');
+ // Parse content using PHP built-in DOMDocument class
+ $document = new \DOMDocument('1.0', 'UTF-8');
- // Encode contents as UTF-8, strip whitespaces & normalize newlines
- $content = mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8');
+ // Encode contents as UTF-8, strip whitespaces & normalize newlines
+ $content = mb_convert_encoding($content, 'HTML-ENTITIES', 'UTF-8');
- // $whitespaces = array(
- // '~\R~u' => "\n", // Normalize new line
- // '~\>[^\S ]+~s' => '>', // Strip whitespaces after tags, except space
- // '~[^\S ]+\<~s' => '<', // Strip whitespaces before tags, except space
- // '~(\s)+~s' => '\\1' // Shorten multiple whitespace sequences
- // );
- // $content = preg_replace(array_keys($whitespaces), $whitespaces, $content);
+ // $whitespaces = array(
+ // '~\R~u' => "\n", // Normalize new line
+ // '~\>[^\S ]+~s' => '>', // Strip whitespaces after tags, except space
+ // '~[^\S ]+\<~s' => '<', // Strip whitespaces before tags, except space
+ // '~(\s)+~s' => '\\1' // Shorten multiple whitespace sequences
+ // );
+ // $content = preg_replace(array_keys($whitespaces), $whitespaces, $content);
- // Parse the HTML using UTF-8
- // The @ before the method call suppresses any warnings that
- // loadHTML might throw because of invalid HTML in the page.
- @$document->loadHTML($content);
+ // Parse the HTML using UTF-8
+ // The @ before the method call suppresses any warnings that
+ // loadHTML might throw because of invalid HTML in the page.
+ @$document->loadHTML($content);
- // Do nothing, if DOM is empty
- if (is_null($document->documentElement)) {
- return null;
- }
+ // Do nothing, if DOM is empty
+ if (is_null($document->documentElement)) {
+ return null;
+ }
- return $document;
- }
-
- /**
- * Save contents of PHP built-in DOMDocument object as HTML5
- *
- * @param DOMDocument $document DOMDocument object with nodes
- *
- * @return string The outputted DOM document as HTML(5)
- * compliant string
- */
- protected function saveDOMDocument($document)
- {
- // Pretty print output
- $document->preserveWhiteSpace = false;
- $document->formatOutput = true;
-
- // Transform DOM document to valid HTML(5)
- $content = '';
- $body = $document->getElementsByTagName('body')->item(0);
- foreach ($body->childNodes as $node) {
- // Expand empty tags (e.g.
to
)
- if (($html = $document->saveXML($node, LIBXML_NOEMPTYTAG)) !== false) {
- $content .= $html;
- }
+ return $document;
}
- // Fix formatting for self-closing tags in HTML5 and removing
- // encapsulated (uncommented) CDATA blocks in