158 lines
5.5 KiB
PHP
158 lines
5.5 KiB
PHP
<?php
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require_once("include/oembed.php");
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require_once("include/event.php");
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require_once("library/markdown.php");
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require_once("include/html2bbcode.php");
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require_once("include/bbcode.php");
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require_once("library/html-to-markdown/HTML_To_Markdown.php");
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// we don't want to support a bbcode specific markdown interpreter
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// and the markdown library we have is pretty good, but provides HTML output.
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// So we'll use that to convert to HTML, then convert the HTML back to bbcode,
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// and then clean up a few Diaspora specific constructs.
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function diaspora2bb($s) {
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$s = html_entity_decode($s,ENT_COMPAT,'UTF-8');
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// Remove CR to avoid problems with following code
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//$s = str_replace("\r","",$s);
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// The parser cannot handle paragraphs correctly
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$s = str_replace(array("</p>", "<p>", '<p dir="ltr">'),array("<br>", "<br>", "<br>"),$s);
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// Escaping the hash tags
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$s = preg_replace('/\#([^\s\#])/','#$1',$s);
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$s = Markdown($s);
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$s = preg_replace('/\@\{(.+?)\; (.+?)\@(.+?)\}/','@[url=https://$3/u/$2]$1[/url]',$s);
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$s = str_replace('#','#',$s);
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$s = html2bbcode($s);
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// protect the recycle symbol from turning into a tag, but without unescaping angles and naked ampersands
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$s = str_replace('♲',html_entity_decode('♲',ENT_QUOTES,'UTF-8'),$s);
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// Convert everything that looks like a link to a link
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$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3]$2$3[/url]',$s);
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//$s = preg_replace("/([^\]\=]|^)(https?\:\/\/)(vimeo|youtu|www\.youtube|soundcloud)([a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url=$2$3$4]$2$3$4[/url]',$s);
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$s = bb_tag_preg_replace("/\[url\=?(.*?)\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/url\]/ism",'[youtube]$2[/youtube]','url',$s);
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$s = bb_tag_preg_replace("/\[url\=https?:\/\/www.youtube.com\/watch\?v\=(.*?)\].*?\[\/url\]/ism",'[youtube]$1[/youtube]','url',$s);
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$s = bb_tag_preg_replace("/\[url\=?(.*?)\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/url\]/ism",'[vimeo]$2[/vimeo]','url',$s);
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$s = bb_tag_preg_replace("/\[url\=https?:\/\/vimeo.com\/([0-9]+)\](.*?)\[\/url\]/ism",'[vimeo]$1[/vimeo]','url',$s);
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// remove duplicate adjacent code tags
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$s = preg_replace("/(\[code\])+(.*?)(\[\/code\])+/ism","[code]$2[/code]", $s);
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// Don't show link to full picture (until it is fixed)
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$s = scale_external_images($s, false);
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return $s;
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}
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function bb2diaspora($Text,$preserve_nl = false, $fordiaspora = true) {
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$a = get_app();
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$OriginalText = $Text;
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// Since Diaspora is creating a summary for links, this function removes them before posting
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if ($fordiaspora)
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$Text = bb_remove_share_information($Text);
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/**
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* Transform #tags, strip off the [url] and replace spaces with underscore
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*/
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$URLSearchString = "^\[\]";
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$Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i", create_function('$match',
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'return \'#\'. str_replace(\' \', \'_\', $match[2]);'
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), $Text);
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// Converting images with size parameters to simple images. Markdown doesn't know it.
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$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $Text);
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// Convert it to HTML - don't try oembed
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if ($fordiaspora) {
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$Text = bbcode($Text, $preserve_nl, false, 3);
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// Add all tags that maybe were removed
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if (preg_match_all("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",$OriginalText, $tags)) {
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$tagline = "";
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foreach($tags[2] as $tag)
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if (!strpos($Text, "#".$tag))
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$tagline .= "#".$tag." ";
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$Text = $Text."<br />".$tagline;
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}
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} else
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$Text = bbcode($Text, $preserve_nl, false, 4);
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// If a link is followed by a quote then there should be a newline before it
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// Maybe we should make this newline at every time before a quote.
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$Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
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$stamp1 = microtime(true);
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// Now convert HTML to Markdown
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$Text = new HTML_To_Markdown($Text);
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$a->save_timestamp($stamp1, "parser");
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// Libertree has a problem with escaped hashtags.
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$Text = str_replace(array('\#'), array('#'), $Text);
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// Remove any leading or trailing whitespace, as this will mess up
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// the Diaspora signature verification and cause the item to disappear
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$Text = trim($Text);
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call_hooks('bb2diaspora',$Text);
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return $Text;
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}
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function unescape_underscores_in_links($m) {
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$y = str_replace('\\_','_', $m[2]);
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return('[' . $m[1] . '](' . $y . ')');
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}
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function format_event_diaspora($ev) {
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$a = get_app();
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if(! ((is_array($ev)) && count($ev)))
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return '';
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$bd_format = t('l F d, Y \@ g:i A') ; // Friday January 18, 2011 @ 8 AM
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$o = 'Friendica event notification:' . "\n";
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$o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
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$o .= t('Starts:') . ' ' . '['
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. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
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$ev['start'] , $bd_format ))
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: day_translate(datetime_convert('UTC', 'UTC',
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$ev['start'] , $bd_format)))
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. '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
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if(! $ev['nofinish'])
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$o .= t('Finishes:') . ' ' . '['
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. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
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$ev['finish'] , $bd_format ))
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: day_translate(datetime_convert('UTC', 'UTC',
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$ev['finish'] , $bd_format )))
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. '](' . $a->get_baseurl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
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if(strlen($ev['location']))
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$o .= t('Location:') . bb2diaspora($ev['location'])
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. "\n";
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$o .= "\n";
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return $o;
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}
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