<?php
-require_once("include/oembed.php");
-require_once("include/event.php");
-require_once("library/markdown.php");
-require_once("include/html2bbcode.php");
-require_once("include/bbcode.php");
-require_once("library/html-to-markdown/HTML_To_Markdown.php");
-
-
-// we don't want to support a bbcode specific markdown interpreter
-// and the markdown library we have is pretty good, but provides HTML output.
-// So we'll use that to convert to HTML, then convert the HTML back to bbcode,
-// and then clean up a few Diaspora specific constructs.
+use Friendica\App;
+use Friendica\Core\System;
+use Friendica\Network\Probe;
+
+use League\HTMLToMarkdown\HtmlConverter;
+
+require_once 'include/oembed.php';
+require_once 'include/event.php';
+require_once 'library/markdown.php';
+require_once 'include/html2bbcode.php';
+require_once 'include/bbcode.php';
+
+/**
+ * @brief Callback function to replace a Diaspora style mention in a mention for Friendica
+ *
+ * @param array $match Matching values for the callback
+ * @return string Replaced mention
+ */
+function diaspora_mention2bb($match) {
+ if ($match[2] == '') {
+ return;
+ }
+
+ $data = get_contact_details_by_addr($match[2]);
+
+ $name = $match[1];
+
+ if ($name == '') {
+ $name = $data['name'];
+ }
+
+ return '@[url=' . $data['url'] . ']' . $name . '[/url]';
+}
+/*
+ * we don't want to support a bbcode specific markdown interpreter
+ * and the markdown library we have is pretty good, but provides HTML output.
+ * So we'll use that to convert to HTML, then convert the HTML back to bbcode,
+ * and then clean up a few Diaspora specific constructs.
+ */
function diaspora2bb($s) {
- $s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
+ $s = html_entity_decode($s, ENT_COMPAT, 'UTF-8');
- // Remove CR to avoid problems with following code
- $s = str_replace("\r","",$s);
+ // Handles single newlines
+ $s = str_replace("\r\n", "\n", $s);
+ $s = str_replace("\n", " \n", $s);
+ $s = str_replace("\r", " \n", $s);
- $s = str_replace("\n"," \n",$s);
+ // Replace lonely stars in lines not starting with it with literal stars
+ $s = preg_replace('/^([^\*]+)\*([^\*]*)$/im', '$1\*$2', $s);
// The parser cannot handle paragraphs correctly
- $s = str_replace(array("</p>", "<p>", '<p dir="ltr">'),array("<br>", "<br>", "<br>"),$s);
+ $s = str_replace(array('</p>', '<p>', '<p dir="ltr">'), array('<br>', '<br>', '<br>'), $s);
// Escaping the hash tags
- $s = preg_replace('/\#([^\s\#])/','#$1',$s);
+ $s = preg_replace('/\#([^\s\#])/', '#$1', $s);
$s = Markdown($s);
- $s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
+ $regexp = "/@\{(?:([^\}]+?); )?([^\} ]+)\}/";
+ $s = preg_replace_callback($regexp, 'diaspora_mention2bb', $s);
- $s = str_replace('#','#',$s);
+ $s = str_replace('#', '#', $s);
$s = html2bbcode($s);
// protect the recycle symbol from turning into a tag, but without unescaping angles and naked ampersands
- $s = str_replace('♲',html_entity_decode('♲',ENT_QUOTES,'UTF-8'),$s);
+ $s = str_replace('♲', html_entity_decode('♲', ENT_QUOTES, 'UTF-8'), $s);
// Convert everything that looks like a link to a link
- $s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3]$2$3[/url]',$s);
+ $s = preg_replace('/([^\]=]|^)(https?\:\/\/)([a-zA-Z0-9:\/\-?&;.=_~#%$!+,@]+(?<!,))/ism', '$1[url=$2$3]$2$3[/url]', $s);
//$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3$4]$2$3$4[/url]',$s);
- $s = bb_tag_preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]','url',$s);
- $s = bb_tag_preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]','url',$s);
- $s = bb_tag_preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]','url',$s);
- $s = bb_tag_preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]','url',$s);
+ $s = bb_tag_preg_replace('/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism', '[youtube]$2[/youtube]', 'url', $s);
+ $s = bb_tag_preg_replace('/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism' , '[youtube]$1[/youtube]', 'url', $s);
+ $s = bb_tag_preg_replace('/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism' , '[vimeo]$2[/vimeo]' , 'url', $s);
+ $s = bb_tag_preg_replace('/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism' , '[vimeo]$1[/vimeo]' , 'url', $s);
+
// remove duplicate adjacent code tags
- $s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);
+ $s = preg_replace('/(\[code\])+(.*?)(\[\/code\])+/ism', '[code]$2[/code]', $s);
// Don't show link to full picture (until it is fixed)
$s = scale_external_images($s, false);
return $s;
}
-function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
+/**
+ * @brief Callback function to replace a Friendica style mention in a mention for Diaspora
+ *
+ * @param array $match Matching values for the callback
+ * @return string Replaced mention
+ */
+function diaspora_mentions($match) {
+
+ $contact = get_contact_details_by_url($match[3]);
+
+ if (!x($contact, 'addr')) {
+ $contact = Probe::uri($match[3]);
+ }
+
+ if (!x($contact, 'addr')) {
+ return $match[0];
+ }
+ $mention = '@{' . $match[2] . '; ' . $contact['addr'] . '}';
+ return $mention;
+}
+
+/**
+ * @brief Converts a BBCode text into Markdown
+ *
+ * This function converts a BBCode item body to be sent to Markdown-enabled
+ * systems like Diaspora and Libertree
+ *
+ * @param string $Text
+ * @param bool $preserve_nl Effects unclear, unused in Friendica
+ * @param bool $fordiaspora Diaspora requires more changes than Libertree
+ * @return string
+ */
+function bb2diaspora($Text, $preserve_nl = false, $fordiaspora = true) {
$a = get_app();
$OriginalText = $Text;
// Since Diaspora is creating a summary for links, this function removes them before posting
- if ($fordiaspora)
+ if ($fordiaspora) {
$Text = bb_remove_share_information($Text);
+ }
/**
* Transform #tags, strip off the [url] and replace spaces with underscore
*/
$URLSearchString = "^\[\]";
- $Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i", create_function('$match',
- 'return \'#\'. str_replace(\' \', \'_\', $match[2]);'
- ), $Text);
-
+ $Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
+ function ($matches) {
+ return '#' . str_replace(' ', '_', $matches[2]);
+ }
+ , $Text);
// Converting images with size parameters to simple images. Markdown doesn't know it.
$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $Text);
+ // Extracting multi-line code blocks before the whitespace processing/code highlighter in bbcode()
+ $codeblocks = [];
+ $Text = preg_replace_callback('#\[code(?:=([^\]]*))?\](?=\n)(.*?)\[\/code\]#is',
+ function ($matches) use (&$codeblocks) {
+ $return = '#codeblock-' . count($codeblocks) . '#';
+
+ $prefix = '````' . $matches[1] . PHP_EOL;
+ $codeblocks[] = $prefix . trim($matches[2]) . PHP_EOL . '````';
+ return $return;
+ }
+ , $Text);
+
// Convert it to HTML - don't try oembed
if ($fordiaspora) {
$Text = bbcode($Text, $preserve_nl, false, 3);
// Add all tags that maybe were removed
- if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",$OriginalText, $tags)) {
+ if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", $OriginalText, $tags)) {
$tagline = "";
- foreach($tags[2] as $tag)
- if (!strpos($Text, "#".$tag))
- $tagline .= "#".$tag." ";
-
- $Text = $Text."<br />".$tagline;
+ foreach ($tags[2] as $tag) {
+ $tag = html_entity_decode($tag, ENT_QUOTES, 'UTF-8');
+ if (!strpos(html_entity_decode($Text, ENT_QUOTES, 'UTF-8'), '#' . $tag)) {
+ $tagline .= '#' . $tag . ' ';
+ }
+ }
+ $Text = $Text." ".$tagline;
}
-
- } else
+ } else {
$Text = bbcode($Text, $preserve_nl, false, 4);
+ }
+
+ // mask some special HTML chars from conversation to markdown
+ $Text = str_replace(array('<', '>', '&'), array('&_lt_;', '&_gt_;', '&_amp_;'), $Text);
// If a link is followed by a quote then there should be a newline before it
// Maybe we should make this newline at every time before a quote.
$stamp1 = microtime(true);
// Now convert HTML to Markdown
- $Text = new HTML_To_Markdown($Text);
+ $converter = new HtmlConverter();
+ $Text = $converter->convert($Text);
+
+ // unmask the special chars back to HTML
+ $Text = str_replace(array('&\_lt\_;', '&\_gt\_;', '&\_amp\_;'), array('<', '>', '&'), $Text);
$a->save_timestamp($stamp1, "parser");
// the Diaspora signature verification and cause the item to disappear
$Text = trim($Text);
+ if ($fordiaspora) {
+ $URLSearchString = "^\[\]";
+ $Text = preg_replace_callback("/([@]\[(.*?)\])\(([$URLSearchString]*?)\)/ism", 'diaspora_mentions', $Text);
+ }
+
+ // Restore code blocks
+ $Text = preg_replace_callback('/#codeblock-([0-9]+)#/iU',
+ function ($matches) use ($codeblocks) {
+ $return = '';
+ if (isset($codeblocks[intval($matches[1])])) {
+ $return = $codeblocks[$matches[1]];
+ }
+ return $return;
+ }
+ , $Text);
+
call_hooks('bb2diaspora',$Text);
return $Text;
}
function unescape_underscores_in_links($m) {
- $y = str_replace('\\_','_', $m[2]);
+ $y = str_replace('\\_', '_', $m[2]);
return('[' . $m[1] . '](' . $y . ')');
}
function format_event_diaspora($ev) {
-
- $a = get_app();
-
- if(! ((is_array($ev)) && count($ev)))
+ if (! ((is_array($ev)) && count($ev))) {
return '';
+ }
$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
$o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
$o .= t('Starts:') . ' ' . '['
- . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
+ . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
$ev['start'] , $bd_format ))
- : day_translate(datetime_convert('UTC', 'UTC',
+ : day_translate(datetime_convert('UTC', 'UTC',
$ev['start'] , $bd_format)))
- . '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
+ . '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
- if(! $ev['nofinish'])
- $o .= t('Finishes:') . ' ' . '['
- . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
+ if (! $ev['nofinish']) {
+ $o .= t('Finishes:') . ' ' . '['
+ . (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
$ev['finish'] , $bd_format ))
- : day_translate(datetime_convert('UTC', 'UTC',
+ : day_translate(datetime_convert('UTC', 'UTC',
$ev['finish'] , $bd_format )))
- . '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
+ . '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
+ }
- if(strlen($ev['location']))
- $o .= t('Location:') . bb2diaspora($ev['location'])
+ if (strlen($ev['location'])) {
+ $o .= t('Location:') . bb2diaspora($ev['location'])
. "\n";
+ }
$o .= "\n";
return $o;