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‎system/expressionengine/third_party/easy_cloudinary/pi.easy_cloudinary.php

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<?php
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/*
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=====================================================
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Easy Cloudinary - by Aaron Gustafson
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-----------------------------------------------------
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https://www.aaron-gustafson.com/
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=====================================================
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This extension was created by Aaron Gustafson
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(aaron@easy-designs.net)
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This work is licensed under the MIT License.
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=====================================================
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File: pi.easy_cloudinary.php
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-----------------------------------------------------
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Purpose: Automates swapping of Cloudinary’s image
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paths for local ones.
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=====================================================
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*/
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$plugin_info = array(
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'pi_name' => 'Easy Cloudinary',
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'pi_version' => '1.0',
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'pi_author' => 'Aaron Gustafson',
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'pi_author_url' => 'https://www.aaron-gustafson.com/',
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'pi_description' => 'Automates swapping of Cloudinary’s image paths for local (server-based) ones.',
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'pi_usage' => Easy_cloudinary::usage()
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);
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class Easy_cloudinary {
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var $return_data;
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var $site_domain;
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var $cloudinary_config = '';
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/**
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* Easy_cloudinary constructor
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* stores the config & triggers the processing
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*/
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function __construct()
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{
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if ( isset( ee()->config['easy_cloudinary'] ) )
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{
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# grab the config
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$this->cloudinary_config = ee()->config['easy_cloudinary'];
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# get the host name
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$http_host = strToLower( ee()->input->server('HTTP_HOST') );
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$ssl = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on';
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$protocol = $ssl ? 'https://' : 'http://';
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$this->site_domain = "{$protocol}{$http_host}";
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$this->return_data = $this->convert( ee()->TMPL->tagdata );
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}
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else
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{
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$this->return_data = ee()->TMPL->tagdata;
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}
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} # end Easy_cloudinary constructor
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/**
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* Easy_cloudinary::convert()
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* processes the supplied content based on the configuration
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*
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* @param str $str - the content to be parsed
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*/
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function convert( $str='' )
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{
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$account = $this->cloudinary_config['account'];
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$template = $this->cloudinary_config['template'];
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# in case we have relative image paths
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$current_path = ee()->uri->uri_string();
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if ( substr( $current_path, -1, 1 ) != '/' )
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{
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$current_path = explode( '/', $current_path );
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$last = count( $current_path ) - 1;
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# if the path is a file…
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if ( strpos( $current_path[$last], '.' ) !== FALSE )
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{
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# remove the file name
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$current_path[$last] = '';
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}
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# otherwise it’s probably a folder
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else
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{
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$current_path[] = '';
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}
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$current_path = implode( '/', $current_path );
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}
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# trim
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$str = trim( $str );
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$img_lookup = '/(<img([^>]*)\/?>)/';
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if ( preg_match_all( $img_lookup, $str, $found, PREG_SET_ORDER ) )
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{
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# loop the matches
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foreach ( $found as $instance )
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{
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$original_img = $instance[1];
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$src = '';
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$srcset = [];
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$other_attributes = [];
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# remove the /
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if ( substr( $instance[2], -1, 1 ) == '/' )
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{
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$instance[2] = substr( $instance[2], 0, -1 );
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}
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# Get all attributes
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# Reference: http://stackoverflow.com/questions/138313/how-to-extract-img-src-title-and-alt-from-html-using-php#answer-2937682
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$doc = new DOMDocument();
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@$doc->loadHTML( $original_img );
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$tags = $doc->getElementsByTagName('img');
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foreach ( $tags as $tag )
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{
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foreach ( $tag->attributes as $attribute )
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{
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$name = $attribute->name;
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$value = $attribute->value;
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if ( $name == 'src' )
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{
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$src = $value;
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}
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if ( $name == 'srcset' )
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{
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// do nothing (Cloudinary dynamically handles or the template can)
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}
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else
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{
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$attributes[$name] = "{$name}=\"{$value}\"";
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}
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}
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}
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# enforce an alt attribute
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if ( ! isset( $attributes['alt'] ) )
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{
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$attributes['alt'] = '';
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}
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# Format the src to include this domain is we don’t have it already
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if ( strpos( $src, $this->site_domain ) === FALSE )
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{
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if ( substr ( $src, 0, 1 ) == '/' )
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{
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$src = "{$this->site_domain}{$src}";
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}
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else
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{
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$src = "{$this->site_domain}{$current_path}{$src}"
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}
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}
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# build the new image
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$swap = array(
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'account' => $this->account,
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'attributes' => implode( ' ', $attributes ),
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'image_url' => $src
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);
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$new_img = ee()->functions->var_swap( $this->template, $swap );
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$str = str_replace( $original_img, $new_img, $str );
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} # end foreach instance
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} # end if match
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$this->return_data = $str;
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return $this->return_data;
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} # end Easy_cloudinary::convert()
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/**
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* Easy_cloudinary::usage()
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* Describes how the plugin is used
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*/
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function usage()
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{
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ob_start(); ?>
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COMING SOON
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<?php
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$buffer = ob_get_contents();
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ob_end_clean();
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return $buffer;
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} # end Easy_cloudinary::usage()
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} # end Easy_cloudinary
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/* End of file pi.easy_cloudinary.php */
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/* Location: ./system/expressionengine/third_party/easy_cloudinary/pi.easy_cloudinary.php */

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