Your IP : 216.73.216.196
<?php
/**
* Handles API calls to BitBucket
*
* @since 2.5.4
*
* @package LearnDash
*/
if ( !class_exists( 'LearnDash_BitBucket_API' ) ) {
class LearnDash_BitBucket_API {
// Production
private $bb_OAuth = null;
private $bb_OAuth_sets = array(
'fUEfEERS8FdprEzNMX' => 'gnBPjny5yummKe6zGv5MMCa5w9tDGstT', // ld_updates
'32uKmTweF7WGUgXC2H' => 'qmUveCQvaZXD9LmAE8GFAd6a6H5SMk6U', // ld_updates2
'P2xXBphWPZP8Cbr8Rw' => 'qFvD9zrt9RVVpEJ6j2jEWjZJEgvhpzPZ', // ld_updates3
'8tvevj3YQQnyFJE5a2' => 'C5BuSGZBanNbmaEE7hjeQEnmPLwma3JE', // ld_updates4
'2LdbzTV4u5UhfTPS8t' => 'Y5eMpRVnFAWkvb3dmZuq64jTzNU9x93c', // ld_updates5
'jYyJyBctJ6wkxVVk7h' => 'NeKUN87Npyu8tGwN4eLCh5ZFjjazdu4e', // ld_updates6
'bn6Phmn3jVyQ2NfdPa' => 'Ct7MbLpuCyr56s8qvy6Eh7VteBEGshDp', // ld_updates7
'bTtudTumX8jQ56aJxc' => 'czwT3Cr75sBDTkDzGzwExwDhHcH6wVbL', // ld_updates8
'uAPE6cvgWjbHdEYpJg' => 'butXFuD3QNbX3uXrwf49J8vvDNMsPbpA', // ld_updates9
'P6xDsLKNTxGdSfUpnC' => 'XFk6PVJCu5bHmcJB7WN3v5afzEsyqAxL', // ld_updates10
);
private $request_method = 'GET';
private $repo_url_base = 'https://api.bitbucket.org/2.0/repositories/learndash';
private $download_url_base = 'https://bitbucket.org/learndash';
function __construct() {
}
function init_oauth_key_set() {
if ( empty( $this->bb_OAuth ) ) {
$set_key = array_rand( $this->bb_OAuth_sets, 1 );
if ( !empty( $set_key ) ) {
$this->bb_OAuth = array(
'consumer_key' => $set_key,
'consumer_secret' => $this->bb_OAuth_sets[$set_key],
);
}
}
}
function get_bb_nonce() {
$mt = microtime();
$rand = mt_rand();
return md5($mt . '_' . $rand);
}
function get_repo_base_url() {
return $this->repo_url_base;
}
function get_download_base_url() {
return $this->download_url_base;
}
function get_readme_base_url() {
return $this->readme_url_base;
}
function setup_url_params( $request_url = '' ) {
if ( !empty( $request_url ) ) {
$this->init_oauth_key_set();
$request_url_params = array(
'oauth_consumer_key' => $this->bb_OAuth['consumer_key'],
'oauth_nonce' => $this->get_bb_nonce(),
'oauth_signature_method' => 'HMAC-SHA1',
'oauth_timestamp' => time(),
'oauth_version' => '1.0',
'pagelen' => 100
);
ksort( $request_url_params );
//The most complicated part of the request - generating the signature.
//The string to sign contains the HTTP method, the URL path, and all of
//our query parameters. Everything is URL encoded. Then we concatenate
//them with ampersands into a single string to hash.
$encodedVerb = urlencode( $this->request_method );
$encodedUrl = urlencode( $request_url );
$encodedParams = urlencode( http_build_query( $request_url_params, '', '&' ) );
$stringToSign = $encodedVerb . '&' . $encodedUrl . '&' . $encodedParams;
//Since we only have one OAuth token (the consumer secret) we only have
//to use it as our HMAC key. However, we still have to append an & to it
//as if we were using it with additional tokens.
$secret = urlencode( $this->bb_OAuth['consumer_secret'] ) . '&';
//The signature is a hash of the consumer key and the base string. Note
//that we have to get the raw output from hash_hmac and base64 encode
//the binary data result.
$request_url_params['oauth_signature'] = base64_encode( hash_hmac('sha1', $stringToSign, $secret, true ) );
$request_url .= '?' . http_build_query( $request_url_params );
}
return $request_url;
}
function get_bitbucket_repositories() {
// Clear out the existiing plugins array.
$repository_data = array();
$request_url = $this->repo_url_base .'/learndash-add-ons/src/master/repositories.txt';
$request_url = $this->setup_url_params( $request_url );
if ( !empty( $request_url ) ) {
$options = array('timeout' => 10);
$response = wp_remote_get( $request_url, $options );
if ( is_wp_error( $response ) ) {
return $response;
}
$code = wp_remote_retrieve_response_code( $response );
$body = wp_remote_retrieve_body( $response );
if ( ( $code === 200 ) && ( !empty( $body ) ) ) {
$repository_data = $this->parse_repository_txt( $body );
}
}
return $repository_data;
}
function get_bitbucket_repositories_ORG() {
// Clear out the existiing plugins array.
$repository_data = array();
$request_url = $this->repo_url_base;
$request_url = $this->setup_url_params( $request_url );
if ( !empty( $request_url ) ) {
$options = array('timeout' => 10);
$response = wp_remote_get( $request_url, $options );
if ( is_wp_error( $response ) ) {
return $response;
}
$code = wp_remote_retrieve_response_code( $response );
$body = wp_remote_retrieve_body( $response );
if ( ( $code === 200 ) && ( !empty( $body ) ) ) {
$repositories = json_decode( $body );
if ( ( property_exists( $repositories, 'values' ) ) && ( is_array( $repositories->values ) ) && ( !empty( $repositories->values ) ) ) {
foreach( $repositories->values as $plugin ) {
if ( property_exists( $plugin, 'slug' ) ) {
//if ( in_array( $plugin->slug, array( 'plugin-test-1', 'plugin-test-2' ) ) ) {
$repository_data[$plugin->slug] = $plugin;
//}
}
}
}
}
}
return $repository_data;
}
// The following function is used to pull the readme.txt file from BitBucket.
// But this was too costly from a connection standpoint. Plus made editing difficult
// since a typo or quick change could not be applied to a new update.
function get_bitbucket_repository_readme( $plugin_key = '' ) {
if ( !empty( $plugin_key ) ) {
$request_url = $this->repo_url_base .'/'. $plugin_key ."/src/master/readme.txt";
$request_url = $this->setup_url_params( $request_url );
if ( !empty( $request_url ) ) {
//$request_url = 'http://local.learndash.com/_readme.txt';
$options = array('timeout' => 10);
$response = wp_remote_get( $request_url, $options );
if ( is_wp_error( $response ) ) {
return $response;
}
$code = wp_remote_retrieve_response_code( $response );
$body = wp_remote_retrieve_body( $response );
if ( ( $code === 200 ) && ( !empty( $body ) ) ) {
$readme_parser = new LearnDashWPReadmeParser();
$body_parsed = $readme_parser->parse_readme_contents( $body );
return $body_parsed;
}
}
}
}
// Retreive the readme.txt file from Amazon S3.
// Filenamess should be in the form format <repo slug>_readme.txt
// as in learndash-gravity-forms_readme.txt or learndash-edd_readme.txt
function get_bitbucket_repository_readme_S3( $plugin_key = '' ) {
if ( !empty( $plugin_key ) ) {
$request_url = $this->readme_url_base .'/'. $plugin_key ."_readme.txt";
$options = array('timeout' => 10);
$response = wp_remote_get( $request_url, $options );
if ( is_wp_error( $response ) ) {
return $response;
}
$code = wp_remote_retrieve_response_code( $response );
$body = wp_remote_retrieve_body( $response );
if ( ( $code === 200 ) && ( !empty( $body ) ) ) {
$readme_parser = new LearnDashWPReadmeParser();
$body_parsed = $readme_parser->parse_readme_contents( $body );
return $body_parsed;
}
}
}
function get_bitbucket_repository_download_url( $plugin_key = '', $tag_or_version = 'stable' ) {
if ( !empty( $plugin_key ) ) {
$request_url = $this->download_url_base ."/". $plugin_key ."/get/". $tag_or_version .".zip";
return $request_url;
}
}
/* The calling function get_bitbucket_repositories() connects to bitbucket and retreives
* a file respoitories.txt. Each line of the file represents a repository and contains
* three fields separated by '|'.
* 1. repository slug
* 2. current version
* 3. last update YYYY-MM-DD hh:mm:ss
*
* @ since 2.5.7
*/
function parse_repository_txt( $file_contents = '' ) {
$repositories_array = array();
$file_contents = str_replace(array("\r\n", "\r"), "\n", $file_contents);
$file_contents = trim($file_contents);
$file_contents_array = preg_split("/(\r\n|\n|\r)/", $file_contents );
if ( !empty( $file_contents_array ) ) {
foreach( $file_contents_array as $repo_item_string ) {
if ( !empty( $repo_item_string ) ) {
list( $tmp_array['slug'], $tmp_array['version'], $tmp_array['updated_on'] ) = explode( '|', $repo_item_string );
$tmp_array = array_map( 'trim', $tmp_array );
if ( ( isset( $tmp_array['slug'] ) ) && ( !empty( $tmp_array['slug'] ) ) ) {
$repositories_array[$tmp_array['slug']] = (object)$tmp_array;
}
}
}
}
return $repositories_array;
}
}
}
if ( !class_exists( 'LearnDashWPReadmeParser' ) ) {
class LearnDashWPReadmeParser {
function __construct() {
// This space intentially blank
}
function parse_readme( $file ) {
$file_contents = @implode('', @file($file));
return $this->parse_readme_contents( $file_contents );
}
function parse_readme_contents( $file_contents ) {
global $wpdb;
$readme_sections = array();
if ( ! empty( $file_contents ) ) {
$file_contents = $wpdb->strip_invalid_text_for_column( $wpdb->options, 'option_value', $file_contents );
}
if ( ! empty( $file_contents ) ) {
$file_contents = str_replace(array("\r\n", "\r"), "\n", $file_contents);
$file_contents = trim($file_contents);
if ( 0 === strpos( $file_contents, "\xEF\xBB\xBF" ) )
$file_contents = substr( $file_contents, 3 );
// Markdown transformations
$file_contents = preg_replace( "|^###([^#]+)#*?\s*?\n|im", '=$1='."\n", $file_contents );
$file_contents = preg_replace( "|^##([^#]+)#*?\s*?\n|im", '==$1=='."\n", $file_contents );
$file_contents = preg_replace( "|^#([^#]+)#*?\s*?\n|im", '===$1==='."\n", $file_contents );
$file_contents_array = preg_split("/(\r\n|\n|\r)/", $file_contents );
if ( !empty( $file_contents_array ) ) {
$section_current = '';
$_is_short_description = false;
foreach( $file_contents_array as $line ) {
if ( substr( $line, 0, 3 ) == '===' ) {
$section_current = 'header';
if ( preg_match('|^===(.*)===|', $line, $_name) ) {
$readme_sections['name'] = $this->sanitize_text( trim( $_name[1] ) );
}
continue;
} else if ( substr( $line, 0, 2 ) == '==' ) {
$section_current = '';
if ( preg_match('|^==(.*)==|', $line, $_name) ) {
$title = $this->sanitize_text( trim( $_name[1] ) );
$section_current = str_replace(' ', '_', strtolower( $title ) );
$readme_sections[$section_current] = array('title' => $title, 'content_raw' => '', 'content' => '');
continue;
}
}
if ( !empty( $section_current ) ) {
if ( $section_current == 'header' ) {
if ( !empty( $line ) ) {
if ( $_is_short_description == true ) {
$short_desc_filtered = $this->sanitize_text( $line );
$short_desc_length = strlen($short_desc_filtered);
$short_description = substr($short_desc_filtered, 0, 150);
$readme_sections['short_description'] = $short_description;
if ( $short_desc_length > strlen($short_description) )
$truncated = true;
else
$truncated = false;
$readme_sections['is_truncated'] = $truncated;
} else {
$line_parts = explode(':', $line, 2 );
if ( count( $line_parts ) > 1 ) {
$title = $this->sanitize_text( trim( $line_parts[0] ) );
$title = str_replace(' ', '_', strtolower($title));
$readme_sections[$title] = trim( $line_parts[1] );
}
}
} else {
$_is_short_description = true;
}
} else if ( isset( $readme_sections[$section_current]['content_raw'] ) ) {
if ( ( empty( $line ) ) && ( empty( $readme_sections[$section_current]['content_raw'] ) ) )
continue;
else
$readme_sections[$section_current]['content_raw'] .= $line ."\r\n";
}
}
}
}
if ( ( isset( $readme_sections['tags'] ) ) && ( !empty( $readme_sections['tags'] ) ) ) {
$tags_str = $readme_sections['tags'];
$readme_sections['tags'] = array();
$tags_array = preg_split('|,[\s]*?|', trim( $tags_str ) );
if ( count( $tags_array ) > 1 ) {
//foreach ( array_keys( $tags_array ) as $t ) {
// $readme_sections['tags'][$t] = $this->sanitize_text( $tags_array[$t] );
//}
$readme_sections['tags'] = array_map( array( $this, 'sanitize_text'), $tags_array );
}
} else {
$readme_sections['tags'] = array();
}
/*
if ( ( isset( $readme_sections['contributors'] ) ) && ( !empty( $readme_sections['contributors'] ) ) ) {
$contributors_str = $readme_sections['contributors'];
$readme_sections['contributors'] = array();
$contributors_array = preg_split('|,[\s]*?|', trim( $contributors_str ) );
if ( count( $contributors_array ) > 1 ) {
//foreach ( array_keys( $contributors_array ) as $t ) {
// $readme_sections['contributors'][$t] = $this->user_sanitize( $contributors_array[$t] );
//}
$readme_sections['contributors'] = array_map( array( $this, 'user_sanitize'), $contributors_array );
}
} else {
*/
$readme_sections['contributors'] = array();
//}
foreach( array( 'changelog', 'upgrade_notice') as $section_key ) {
if ( ( isset( $readme_sections[$section_key]['content_raw'] ) ) && ( !empty( $readme_sections[$section_key]['content_raw'] ) ) ) {
$split = preg_split( '#=(.*?)=#', $readme_sections[$section_key]['content_raw'], -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY );
$readme_sections[$section_key]['content'] = array();
for ( $i = 0; $i < count( $split ); $i += 2 )
$readme_sections[$section_key]['content'][$this->sanitize_text( $split[$i] )] = substr( $this->sanitize_text( $split[$i + 1] ), 0, 300 );
}
}
foreach( array( 'icons', 'banners' ) as $section_key ) {
if ( ( isset( $readme_sections[$section_key]['content_raw'] ) ) && ( !empty( $readme_sections[$section_key]['content_raw'] ) ) ) {
$items = explode( PHP_EOL, $readme_sections[$section_key]['content_raw'] );
if ( !empty( $items ) ) {
$readme_sections[$section_key] = array();
foreach( $items as $item ) {
$item = trim( $item );
if ( !empty( $item ) ) {
$item_split = explode( ':', $item, 2 );
$readme_sections[$section_key][$item_split[0]] = $item_split[1];
}
}
}
}
}
$readme_sections['sections'] = array();
foreach( array( 'description', 'installation', 'frequently_asked_questions', 'changelog', 'arbitrary_section' ) as $section_key ) {
if ( ( isset( $readme_sections[$section_key]['content_raw'] ) ) && ( !empty( $readme_sections[$section_key]['content_raw'] ) ) ) {
$readme_sections[$section_key]['content'] = preg_replace('/^[\s]*=[\s]+(.+?)[\s]+=/m', '<h4>$1</h4>', $readme_sections[$section_key]['content_raw'] );
$readme_sections[$section_key]['content'] = $this->filter_text( $readme_sections[$section_key]['content'], true );
$readme_sections['sections'][$section_key] = $readme_sections[$section_key]['content'];
}
}
}
return $readme_sections;
}
function sanitize_text( $text ) { // not fancy
$text = strip_tags($text);
$text = esc_html($text);
$text = trim($text);
return $text;
}
function filter_text( $text, $markdown = false ) { // fancy, Markdown
$text = trim($text);
$text = call_user_func( array( __CLASS__, 'code_trick' ), $text, $markdown ); // A better parser than Markdown's for: backticks -> CODE
//if ( $markdown ) { // Parse markdown.
// if ( !function_exists('Markdown') )
// require( WORDPRESS_README_MARKDOWN );
// $text = Markdown($text);
//}
if ( $markdown ) { // Parse markdown.
//if ( !class_exists('LeanDashParsedown', false) ) {
// /** @noinspection PhpIncludeInspection */
// require_once(dirname(__FILE__) . '/Parsedown' . (version_compare(PHP_VERSION, '5.3.0', '>=') ? '' : 'Legacy') . '.php');
//}
$instance = LeanDashParsedown::instance();
$text = $instance->text($text);
}
$allowed = array(
'a' => array(
'href' => array(),
'title' => array(),
'rel' => array()),
'blockquote' => array('cite' => array()),
'br' => array(),
'p' => array(),
'code' => array(),
'pre' => array(),
'em' => array(),
'strong' => array(),
'ul' => array(),
'ol' => array(),
'li' => array(),
'h3' => array(),
'h4' => array()
);
$text = balanceTags($text);
$text = wp_kses( $text, $allowed );
$text = trim($text);
return $text;
}
function code_trick( $text, $markdown ) { // Don't use bbPress native function - it's incompatible with Markdown
// If doing markdown, first take any user formatted code blocks and turn them into backticks so that
// markdown will preserve things like underscores in code blocks
if ( $markdown )
$text = preg_replace_callback("!(<pre><code>|<code>)(.*?)(</code></pre>|</code>)!s", array( __CLASS__,'decodeit'), $text);
$text = str_replace(array("\r\n", "\r"), "\n", $text);
if ( !$markdown ) {
// This gets the "inline" code blocks, but can't be used with Markdown.
$text = preg_replace_callback("|(`)(.*?)`|", array( __CLASS__, 'encodeit'), $text);
// This gets the "block level" code blocks and converts them to PRE CODE
$text = preg_replace_callback("!(^|\n)`(.*?)`!s", array( __CLASS__, 'encodeit'), $text);
} else {
// Markdown can do inline code, we convert bbPress style block level code to Markdown style
$text = preg_replace_callback("!(^|\n)([ \t]*?)`(.*?)`!s", array( __CLASS__, 'indent'), $text);
}
return $text;
}
function indent( $matches ) {
$text = $matches[3];
$text = preg_replace('|^|m', $matches[2] . ' ', $text);
return $matches[1] . $text;
}
function encodeit( $matches ) {
if ( function_exists('encodeit') ) // bbPress native
return encodeit( $matches );
$text = trim($matches[2]);
$text = htmlspecialchars($text, ENT_QUOTES);
$text = str_replace(array("\r\n", "\r"), "\n", $text);
$text = preg_replace("|\n\n\n+|", "\n\n", $text);
$text = str_replace('&lt;', '<', $text);
$text = str_replace('&gt;', '>', $text);
$text = "<code>$text</code>";
if ( "`" != $matches[1] )
$text = "<pre>$text</pre>";
return $text;
}
function decodeit( $matches ) {
if ( function_exists('decodeit') ) // bbPress native
return decodeit( $matches );
$text = $matches[2];
$trans_table = array_flip(get_html_translation_table(HTML_ENTITIES));
$text = strtr($text, $trans_table);
$text = str_replace('<br />', '', $text);
$text = str_replace('&', '&', $text);
$text = str_replace(''', "'", $text);
if ( '<pre><code>' == $matches[1] )
$text = "\n$text\n";
return "`$text`";
}
}
#
#
# LeanDashParsedown
# http://parsedown.org
#
# (c) Emanuil Rusev
# http://erusev.com
#
# For the full license information, view the LICENSE file that was distributed
# with this source code.
#
#
class LeanDashParsedown
{
# ~
const version = '1.6.0';
# ~
function text($text)
{
# make sure no definitions are set
$this->DefinitionData = array();
# standardize line breaks
$text = str_replace(array("\r\n", "\r"), "\n", $text);
# remove surrounding line breaks
$text = trim($text, "\n");
# split text into lines
$lines = explode("\n", $text);
# iterate through lines to identify blocks
$markup = $this->lines($lines);
# trim line breaks
$markup = trim($markup, "\n");
return $markup;
}
#
# Setters
#
function setBreaksEnabled($breaksEnabled)
{
$this->breaksEnabled = $breaksEnabled;
return $this;
}
protected $breaksEnabled;
function setMarkupEscaped($markupEscaped)
{
$this->markupEscaped = $markupEscaped;
return $this;
}
protected $markupEscaped;
function setUrlsLinked($urlsLinked)
{
$this->urlsLinked = $urlsLinked;
return $this;
}
protected $urlsLinked = true;
#
# Lines
#
protected $BlockTypes = array(
'#' => array('Header'),
'*' => array('Rule', 'List'),
'+' => array('List'),
'-' => array('SetextHeader', 'Table', 'Rule', 'List'),
'0' => array('List'),
'1' => array('List'),
'2' => array('List'),
'3' => array('List'),
'4' => array('List'),
'5' => array('List'),
'6' => array('List'),
'7' => array('List'),
'8' => array('List'),
'9' => array('List'),
':' => array('Table'),
'<' => array('Comment', 'Markup'),
'=' => array('SetextHeader'),
'>' => array('Quote'),
'[' => array('Reference'),
'_' => array('Rule'),
'`' => array('FencedCode'),
'|' => array('Table'),
'~' => array('FencedCode'),
);
# ~
protected $unmarkedBlockTypes = array(
'Code',
);
#
# Blocks
#
protected function lines(array $lines)
{
$CurrentBlock = null;
foreach ($lines as $line)
{
if (chop($line) === '')
{
if (isset($CurrentBlock))
{
$CurrentBlock['interrupted'] = true;
}
continue;
}
if (strpos($line, "\t") !== false)
{
$parts = explode("\t", $line);
$line = $parts[0];
unset($parts[0]);
foreach ($parts as $part)
{
$shortage = 4 - mb_strlen($line, 'utf-8') % 4;
$line .= str_repeat(' ', $shortage);
$line .= $part;
}
}
$indent = 0;
while (isset($line[$indent]) and $line[$indent] === ' ')
{
$indent ++;
}
$text = $indent > 0 ? substr($line, $indent) : $line;
# ~
$Line = array('body' => $line, 'indent' => $indent, 'text' => $text);
# ~
if (isset($CurrentBlock['continuable']))
{
$Block = $this->{'block'.$CurrentBlock['type'].'Continue'}($Line, $CurrentBlock);
if (isset($Block))
{
$CurrentBlock = $Block;
continue;
}
else
{
if ($this->isBlockCompletable($CurrentBlock['type']))
{
$CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
}
}
}
# ~
$marker = $text[0];
# ~
$blockTypes = $this->unmarkedBlockTypes;
if (isset($this->BlockTypes[$marker]))
{
foreach ($this->BlockTypes[$marker] as $blockType)
{
$blockTypes []= $blockType;
}
}
#
# ~
foreach ($blockTypes as $blockType)
{
$Block = $this->{'block'.$blockType}($Line, $CurrentBlock);
if (isset($Block))
{
$Block['type'] = $blockType;
if ( ! isset($Block['identified']))
{
$Blocks []= $CurrentBlock;
$Block['identified'] = true;
}
if ($this->isBlockContinuable($blockType))
{
$Block['continuable'] = true;
}
$CurrentBlock = $Block;
continue 2;
}
}
# ~
if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted']))
{
$CurrentBlock['element']['text'] .= "\n".$text;
}
else
{
$Blocks []= $CurrentBlock;
$CurrentBlock = $this->paragraph($Line);
$CurrentBlock['identified'] = true;
}
}
# ~
if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type']))
{
$CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock);
}
# ~
$Blocks []= $CurrentBlock;
unset($Blocks[0]);
# ~
$markup = '';
foreach ($Blocks as $Block)
{
if (isset($Block['hidden']))
{
continue;
}
$markup .= "\n";
$markup .= isset($Block['markup']) ? $Block['markup'] : $this->element($Block['element']);
}
$markup .= "\n";
# ~
return $markup;
}
protected function isBlockContinuable($Type)
{
return method_exists($this, 'block'.$Type.'Continue');
}
protected function isBlockCompletable($Type)
{
return method_exists($this, 'block'.$Type.'Complete');
}
#
# Code
protected function blockCode($Line, $Block = null)
{
if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted']))
{
return;
}
if ($Line['indent'] >= 4)
{
$text = substr($Line['body'], 4);
$Block = array(
'element' => array(
'name' => 'pre',
'handler' => 'element',
'text' => array(
'name' => 'code',
'text' => $text,
),
),
);
return $Block;
}
}
protected function blockCodeContinue($Line, $Block)
{
if ($Line['indent'] >= 4)
{
if (isset($Block['interrupted']))
{
$Block['element']['text']['text'] .= "\n";
unset($Block['interrupted']);
}
$Block['element']['text']['text'] .= "\n";
$text = substr($Line['body'], 4);
$Block['element']['text']['text'] .= $text;
return $Block;
}
}
protected function blockCodeComplete($Block)
{
$text = $Block['element']['text']['text'];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
$Block['element']['text']['text'] = $text;
return $Block;
}
#
# Comment
protected function blockComment($Line)
{
if ($this->markupEscaped)
{
return;
}
if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!')
{
$Block = array(
'markup' => $Line['body'],
);
if (preg_match('/-->$/', $Line['text']))
{
$Block['closed'] = true;
}
return $Block;
}
}
protected function blockCommentContinue($Line, array $Block)
{
if (isset($Block['closed']))
{
return;
}
$Block['markup'] .= "\n" . $Line['body'];
if (preg_match('/-->$/', $Line['text']))
{
$Block['closed'] = true;
}
return $Block;
}
#
# Fenced Code
protected function blockFencedCode($Line)
{
if (preg_match('/^['.$Line['text'][0].']{3,}[ ]*([\w-]+)?[ ]*$/', $Line['text'], $matches))
{
$Element = array(
'name' => 'code',
'text' => '',
);
if (isset($matches[1]))
{
$class = 'language-'.$matches[1];
$Element['attributes'] = array(
'class' => $class,
);
}
$Block = array(
'char' => $Line['text'][0],
'element' => array(
'name' => 'pre',
'handler' => 'element',
'text' => $Element,
),
);
return $Block;
}
}
protected function blockFencedCodeContinue($Line, $Block)
{
if (isset($Block['complete']))
{
return;
}
if (isset($Block['interrupted']))
{
$Block['element']['text']['text'] .= "\n";
unset($Block['interrupted']);
}
if (preg_match('/^'.$Block['char'].'{3,}[ ]*$/', $Line['text']))
{
$Block['element']['text']['text'] = substr($Block['element']['text']['text'], 1);
$Block['complete'] = true;
return $Block;
}
$Block['element']['text']['text'] .= "\n".$Line['body'];;
return $Block;
}
protected function blockFencedCodeComplete($Block)
{
$text = $Block['element']['text']['text'];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
$Block['element']['text']['text'] = $text;
return $Block;
}
#
# Header
protected function blockHeader($Line)
{
if (isset($Line['text'][1]))
{
$level = 1;
while (isset($Line['text'][$level]) and $Line['text'][$level] === '#')
{
$level ++;
}
if ($level > 6)
{
return;
}
$text = trim($Line['text'], '# ');
$Block = array(
'element' => array(
'name' => 'h' . min(6, $level),
'text' => $text,
'handler' => 'line',
),
);
return $Block;
}
}
#
# List
protected function blockList($Line)
{
list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]+[.]');
if (preg_match('/^('.$pattern.'[ ]+)(.*)/', $Line['text'], $matches))
{
$Block = array(
'indent' => $Line['indent'],
'pattern' => $pattern,
'element' => array(
'name' => $name,
'handler' => 'elements',
),
);
$Block['li'] = array(
'name' => 'li',
'handler' => 'li',
'text' => array(
$matches[2],
),
);
$Block['element']['text'] []= & $Block['li'];
return $Block;
}
}
protected function blockListContinue($Line, array $Block)
{
if ($Block['indent'] === $Line['indent'] and preg_match('/^'.$Block['pattern'].'(?:[ ]+(.*)|$)/', $Line['text'], $matches))
{
if (isset($Block['interrupted']))
{
$Block['li']['text'] []= '';
unset($Block['interrupted']);
}
unset($Block['li']);
$text = isset($matches[1]) ? $matches[1] : '';
$Block['li'] = array(
'name' => 'li',
'handler' => 'li',
'text' => array(
$text,
),
);
$Block['element']['text'] []= & $Block['li'];
return $Block;
}
if ($Line['text'][0] === '[' and $this->blockReference($Line))
{
return $Block;
}
if ( ! isset($Block['interrupted']))
{
$text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
$Block['li']['text'] []= $text;
return $Block;
}
if ($Line['indent'] > 0)
{
$Block['li']['text'] []= '';
$text = preg_replace('/^[ ]{0,4}/', '', $Line['body']);
$Block['li']['text'] []= $text;
unset($Block['interrupted']);
return $Block;
}
}
#
# Quote
protected function blockQuote($Line)
{
if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
{
$Block = array(
'element' => array(
'name' => 'blockquote',
'handler' => 'lines',
'text' => (array) $matches[1],
),
);
return $Block;
}
}
protected function blockQuoteContinue($Line, array $Block)
{
if ($Line['text'][0] === '>' and preg_match('/^>[ ]?(.*)/', $Line['text'], $matches))
{
if (isset($Block['interrupted']))
{
$Block['element']['text'] []= '';
unset($Block['interrupted']);
}
$Block['element']['text'] []= $matches[1];
return $Block;
}
if ( ! isset($Block['interrupted']))
{
$Block['element']['text'] []= $Line['text'];
return $Block;
}
}
#
# Rule
protected function blockRule($Line)
{
if (preg_match('/^(['.$Line['text'][0].'])([ ]*\1){2,}[ ]*$/', $Line['text']))
{
$Block = array(
'element' => array(
'name' => 'hr'
),
);
return $Block;
}
}
#
# Setext
protected function blockSetextHeader($Line, array $Block = null)
{
if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
{
return;
}
if (chop($Line['text'], $Line['text'][0]) === '')
{
$Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2';
return $Block;
}
}
#
# Markup
protected function blockMarkup($Line)
{
if ($this->markupEscaped)
{
return;
}
if (preg_match('/^<(\w*)(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*(\/)?>/', $Line['text'], $matches))
{
$element = strtolower($matches[1]);
if (in_array($element, $this->textLevelElements))
{
return;
}
$Block = array(
'name' => $matches[1],
'depth' => 0,
'markup' => $Line['text'],
);
$length = strlen($matches[0]);
$remainder = substr($Line['text'], $length);
if (trim($remainder) === '')
{
if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
{
$Block['closed'] = true;
$Block['void'] = true;
}
}
else
{
if (isset($matches[2]) or in_array($matches[1], $this->voidElements))
{
return;
}
if (preg_match('/<\/'.$matches[1].'>[ ]*$/i', $remainder))
{
$Block['closed'] = true;
}
}
return $Block;
}
}
protected function blockMarkupContinue($Line, array $Block)
{
if (isset($Block['closed']))
{
return;
}
if (preg_match('/^<'.$Block['name'].'(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*>/i', $Line['text'])) # open
{
$Block['depth'] ++;
}
if (preg_match('/(.*?)<\/'.$Block['name'].'>[ ]*$/i', $Line['text'], $matches)) # close
{
if ($Block['depth'] > 0)
{
$Block['depth'] --;
}
else
{
$Block['closed'] = true;
}
}
if (isset($Block['interrupted']))
{
$Block['markup'] .= "\n";
unset($Block['interrupted']);
}
$Block['markup'] .= "\n".$Line['body'];
return $Block;
}
#
# Reference
protected function blockReference($Line)
{
if (preg_match('/^\[(.+?)\]:[ ]*<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches))
{
$id = strtolower($matches[1]);
$Data = array(
'url' => $matches[2],
'title' => null,
);
if (isset($matches[3]))
{
$Data['title'] = $matches[3];
}
$this->DefinitionData['Reference'][$id] = $Data;
$Block = array(
'hidden' => true,
);
return $Block;
}
}
#
# Table
protected function blockTable($Line, array $Block = null)
{
if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted']))
{
return;
}
if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '')
{
$alignments = array();
$divider = $Line['text'];
$divider = trim($divider);
$divider = trim($divider, '|');
$dividerCells = explode('|', $divider);
foreach ($dividerCells as $dividerCell)
{
$dividerCell = trim($dividerCell);
if ($dividerCell === '')
{
continue;
}
$alignment = null;
if ($dividerCell[0] === ':')
{
$alignment = 'left';
}
if (substr($dividerCell, - 1) === ':')
{
$alignment = $alignment === 'left' ? 'center' : 'right';
}
$alignments []= $alignment;
}
# ~
$HeaderElements = array();
$header = $Block['element']['text'];
$header = trim($header);
$header = trim($header, '|');
$headerCells = explode('|', $header);
foreach ($headerCells as $index => $headerCell)
{
$headerCell = trim($headerCell);
$HeaderElement = array(
'name' => 'th',
'text' => $headerCell,
'handler' => 'line',
);
if (isset($alignments[$index]))
{
$alignment = $alignments[$index];
$HeaderElement['attributes'] = array(
'style' => 'text-align: '.$alignment.';',
);
}
$HeaderElements []= $HeaderElement;
}
# ~
$Block = array(
'alignments' => $alignments,
'identified' => true,
'element' => array(
'name' => 'table',
'handler' => 'elements',
),
);
$Block['element']['text'] []= array(
'name' => 'thead',
'handler' => 'elements',
);
$Block['element']['text'] []= array(
'name' => 'tbody',
'handler' => 'elements',
'text' => array(),
);
$Block['element']['text'][0]['text'] []= array(
'name' => 'tr',
'handler' => 'elements',
'text' => $HeaderElements,
);
return $Block;
}
}
protected function blockTableContinue($Line, array $Block)
{
if (isset($Block['interrupted']))
{
return;
}
if ($Line['text'][0] === '|' or strpos($Line['text'], '|'))
{
$Elements = array();
$row = $Line['text'];
$row = trim($row);
$row = trim($row, '|');
preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches);
foreach ($matches[0] as $index => $cell)
{
$cell = trim($cell);
$Element = array(
'name' => 'td',
'handler' => 'line',
'text' => $cell,
);
if (isset($Block['alignments'][$index]))
{
$Element['attributes'] = array(
'style' => 'text-align: '.$Block['alignments'][$index].';',
);
}
$Elements []= $Element;
}
$Element = array(
'name' => 'tr',
'handler' => 'elements',
'text' => $Elements,
);
$Block['element']['text'][1]['text'] []= $Element;
return $Block;
}
}
#
# ~
#
protected function paragraph($Line)
{
$Block = array(
'element' => array(
'name' => 'p',
'text' => $Line['text'],
'handler' => 'line',
),
);
return $Block;
}
#
# Inline Elements
#
protected $InlineTypes = array(
'"' => array('SpecialCharacter'),
'!' => array('Image'),
'&' => array('SpecialCharacter'),
'*' => array('Emphasis'),
':' => array('Url'),
'<' => array('UrlTag', 'EmailTag', 'Markup', 'SpecialCharacter'),
'>' => array('SpecialCharacter'),
'[' => array('Link'),
'_' => array('Emphasis'),
'`' => array('Code'),
'~' => array('Strikethrough'),
'\\' => array('EscapeSequence'),
);
# ~
protected $inlineMarkerList = '!"*_&[:<>`~\\';
#
# ~
#
public function line($text)
{
$markup = '';
# $excerpt is based on the first occurrence of a marker
while ($excerpt = strpbrk($text, $this->inlineMarkerList))
{
$marker = $excerpt[0];
$markerPosition = strpos($text, $marker);
$Excerpt = array('text' => $excerpt, 'context' => $text);
foreach ($this->InlineTypes[$marker] as $inlineType)
{
$Inline = $this->{'inline'.$inlineType}($Excerpt);
if ( ! isset($Inline))
{
continue;
}
# makes sure that the inline belongs to "our" marker
if (isset($Inline['position']) and $Inline['position'] > $markerPosition)
{
continue;
}
# sets a default inline position
if ( ! isset($Inline['position']))
{
$Inline['position'] = $markerPosition;
}
# the text that comes before the inline
$unmarkedText = substr($text, 0, $Inline['position']);
# compile the unmarked text
$markup .= $this->unmarkedText($unmarkedText);
# compile the inline
$markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']);
# remove the examined text
$text = substr($text, $Inline['position'] + $Inline['extent']);
continue 2;
}
# the marker does not belong to an inline
$unmarkedText = substr($text, 0, $markerPosition + 1);
$markup .= $this->unmarkedText($unmarkedText);
$text = substr($text, $markerPosition + 1);
}
$markup .= $this->unmarkedText($text);
return $markup;
}
#
# ~
#
protected function inlineCode($Excerpt)
{
$marker = $Excerpt['text'][0];
if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches))
{
$text = $matches[2];
$text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8');
$text = preg_replace("/[ ]*\n/", ' ', $text);
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'code',
'text' => $text,
),
);
}
}
protected function inlineEmailTag($Excerpt)
{
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches))
{
$url = $matches[1];
if ( ! isset($matches[2]))
{
$url = 'mailto:' . $url;
}
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'a',
'text' => $matches[1],
'attributes' => array(
'href' => $url,
),
),
);
}
}
protected function inlineEmphasis($Excerpt)
{
if ( ! isset($Excerpt['text'][1]))
{
return;
}
$marker = $Excerpt['text'][0];
if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches))
{
$emphasis = 'strong';
}
elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches))
{
$emphasis = 'em';
}
else
{
return;
}
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => $emphasis,
'handler' => 'line',
'text' => $matches[1],
),
);
}
protected function inlineEscapeSequence($Excerpt)
{
if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters))
{
return array(
'markup' => $Excerpt['text'][1],
'extent' => 2,
);
}
}
protected function inlineImage($Excerpt)
{
if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[')
{
return;
}
$Excerpt['text']= substr($Excerpt['text'], 1);
$Link = $this->inlineLink($Excerpt);
if ($Link === null)
{
return;
}
$Inline = array(
'extent' => $Link['extent'] + 1,
'element' => array(
'name' => 'img',
'attributes' => array(
'src' => $Link['element']['attributes']['href'],
'alt' => $Link['element']['text'],
),
),
);
$Inline['element']['attributes'] += $Link['element']['attributes'];
unset($Inline['element']['attributes']['href']);
return $Inline;
}
protected function inlineLink($Excerpt)
{
$Element = array(
'name' => 'a',
'handler' => 'line',
'text' => null,
'attributes' => array(
'href' => null,
'title' => null,
),
);
$extent = 0;
$remainder = $Excerpt['text'];
if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches))
{
$Element['text'] = $matches[1];
$extent += strlen($matches[0]);
$remainder = substr($remainder, $extent);
}
else
{
return;
}
if (preg_match('/^[(]((?:[^ ()]|[(][^ )]+[)])+)(?:[ ]+("[^"]*"|\'[^\']*\'))?[)]/', $remainder, $matches))
{
$Element['attributes']['href'] = $matches[1];
if (isset($matches[2]))
{
$Element['attributes']['title'] = substr($matches[2], 1, - 1);
}
$extent += strlen($matches[0]);
}
else
{
if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches))
{
$definition = strlen($matches[1]) ? $matches[1] : $Element['text'];
$definition = strtolower($definition);
$extent += strlen($matches[0]);
}
else
{
$definition = strtolower($Element['text']);
}
if ( ! isset($this->DefinitionData['Reference'][$definition]))
{
return;
}
$Definition = $this->DefinitionData['Reference'][$definition];
$Element['attributes']['href'] = $Definition['url'];
$Element['attributes']['title'] = $Definition['title'];
}
$Element['attributes']['href'] = str_replace(array('&', '<'), array('&', '<'), $Element['attributes']['href']);
return array(
'extent' => $extent,
'element' => $Element,
);
}
protected function inlineMarkup($Excerpt)
{
if ($this->markupEscaped or strpos($Excerpt['text'], '>') === false)
{
return;
}
if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w*[ ]*>/s', $Excerpt['text'], $matches))
{
return array(
'markup' => $matches[0],
'extent' => strlen($matches[0]),
);
}
if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?[^-])*-->/s', $Excerpt['text'], $matches))
{
return array(
'markup' => $matches[0],
'extent' => strlen($matches[0]),
);
}
if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w*(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*\/?>/s', $Excerpt['text'], $matches))
{
return array(
'markup' => $matches[0],
'extent' => strlen($matches[0]),
);
}
}
protected function inlineSpecialCharacter($Excerpt)
{
if ($Excerpt['text'][0] === '&' and ! preg_match('/^&#?\w+;/', $Excerpt['text']))
{
return array(
'markup' => '&',
'extent' => 1,
);
}
$SpecialCharacter = array('>' => 'gt', '<' => 'lt', '"' => 'quot');
if (isset($SpecialCharacter[$Excerpt['text'][0]]))
{
return array(
'markup' => '&'.$SpecialCharacter[$Excerpt['text'][0]].';',
'extent' => 1,
);
}
}
protected function inlineStrikethrough($Excerpt)
{
if ( ! isset($Excerpt['text'][1]))
{
return;
}
if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches))
{
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'del',
'text' => $matches[1],
'handler' => 'line',
),
);
}
}
protected function inlineUrl($Excerpt)
{
if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/')
{
return;
}
if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE))
{
$Inline = array(
'extent' => strlen($matches[0][0]),
'position' => $matches[0][1],
'element' => array(
'name' => 'a',
'text' => $matches[0][0],
'attributes' => array(
'href' => $matches[0][0],
),
),
);
return $Inline;
}
}
protected function inlineUrlTag($Excerpt)
{
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w+:\/{2}[^ >]+)>/i', $Excerpt['text'], $matches))
{
$url = str_replace(array('&', '<'), array('&', '<'), $matches[1]);
return array(
'extent' => strlen($matches[0]),
'element' => array(
'name' => 'a',
'text' => $url,
'attributes' => array(
'href' => $url,
),
),
);
}
}
# ~
protected function unmarkedText($text)
{
if ($this->breaksEnabled)
{
$text = preg_replace('/[ ]*\n/', "<br />\n", $text);
}
else
{
$text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "<br />\n", $text);
$text = str_replace(" \n", "\n", $text);
}
return $text;
}
#
# Handlers
#
protected function element(array $Element)
{
$markup = '<'.$Element['name'];
if (isset($Element['attributes']))
{
foreach ($Element['attributes'] as $name => $value)
{
if ($value === null)
{
continue;
}
$markup .= ' '.$name.'="'.$value.'"';
}
}
if (isset($Element['text']))
{
$markup .= '>';
if (isset($Element['handler']))
{
$markup .= $this->{$Element['handler']}($Element['text']);
}
else
{
$markup .= $Element['text'];
}
$markup .= '</'.$Element['name'].'>';
}
else
{
$markup .= ' />';
}
return $markup;
}
protected function elements(array $Elements)
{
$markup = '';
foreach ($Elements as $Element)
{
$markup .= "\n" . $this->element($Element);
}
$markup .= "\n";
return $markup;
}
# ~
protected function li($lines)
{
$markup = $this->lines($lines);
$trimmedMarkup = trim($markup);
if ( ! in_array('', $lines) and substr($trimmedMarkup, 0, 3) === '<p>')
{
$markup = $trimmedMarkup;
$markup = substr($markup, 3);
$position = strpos($markup, "</p>");
$markup = substr_replace($markup, '', $position, 4);
}
return $markup;
}
#
# Deprecated Methods
#
function parse($text)
{
$markup = $this->text($text);
return $markup;
}
#
# Static Methods
#
static function instance($name = 'default')
{
if (isset(self::$instances[$name]))
{
return self::$instances[$name];
}
$instance = new static();
self::$instances[$name] = $instance;
return $instance;
}
private static $instances = array();
#
# Fields
#
protected $DefinitionData;
#
# Read-Only
protected $specialCharacters = array(
'\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|',
);
protected $StrongRegex = array(
'*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s',
'_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us',
);
protected $EmRegex = array(
'*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s',
'_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us',
);
protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?';
protected $voidElements = array(
'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source',
);
protected $textLevelElements = array(
'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont',
'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing',
'i', 'rp', 'del', 'code', 'strike', 'marquee',
'q', 'rt', 'ins', 'font', 'strong',
's', 'tt', 'sub', 'mark',
'u', 'xm', 'sup', 'nobr',
'var', 'ruby',
'wbr', 'span',
'time',
);
}
}