mirror of
https://github.com/friendica/friendica
synced 2024-11-11 11:42:53 +00:00
263 lines
8.4 KiB
PHP
263 lines
8.4 KiB
PHP
<?php
|
|
|
|
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');
|
|
|
|
// Handles single newlines
|
|
$s = str_replace("\r\n", "\n", $s);
|
|
$s = str_replace("\n", " \n", $s);
|
|
$s = str_replace("\r", " \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);
|
|
|
|
// Escaping the hash tags
|
|
$s = preg_replace('/\#([^\s\#])/', '#$1', $s);
|
|
|
|
$s = Markdown($s);
|
|
|
|
$regexp = "/@\{(?:([^\}]+?); )?([^\} ]+)\}/";
|
|
$s = preg_replace_callback($regexp, 'diaspora_mention2bb', $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);
|
|
|
|
// 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?\:\/\/)(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);
|
|
|
|
// remove duplicate adjacent code tags
|
|
$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;
|
|
}
|
|
|
|
/**
|
|
* @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) {
|
|
$Text = bb_remove_share_information($Text);
|
|
}
|
|
|
|
/**
|
|
* Transform #tags, strip off the [url] and replace spaces with underscore
|
|
*/
|
|
$URLSearchString = "^\[\]";
|
|
$Text = preg_replace_callback("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
|
|
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)) {
|
|
$tagline = "";
|
|
foreach ($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 {
|
|
$Text = bbcode($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.
|
|
$Text = str_replace(array("</a><blockquote>"), array("</a><br><blockquote>"), $Text);
|
|
|
|
$stamp1 = microtime(true);
|
|
|
|
// Now convert HTML to Markdown
|
|
$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");
|
|
|
|
// Libertree has a problem with escaped hashtags.
|
|
$Text = str_replace(array('\#'), array('#'), $Text);
|
|
|
|
// Remove any leading or trailing whitespace, as this will mess up
|
|
// 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]);
|
|
return('[' . $m[1] . '](' . $y . ')');
|
|
}
|
|
|
|
function format_event_diaspora($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 = 'Friendica event notification:' . "\n";
|
|
|
|
$o .= '**' . (($ev['summary']) ? bb2diaspora($ev['summary']) : bb2diaspora($ev['desc'])) . '**' . "\n";
|
|
|
|
$o .= t('Starts:') . ' ' . '['
|
|
. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
|
|
$ev['start'] , $bd_format ))
|
|
: day_translate(datetime_convert('UTC', 'UTC',
|
|
$ev['start'] , $bd_format)))
|
|
. '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['start'])) . ")\n";
|
|
|
|
if (! $ev['nofinish']) {
|
|
$o .= t('Finishes:') . ' ' . '['
|
|
. (($ev['adjust']) ? day_translate(datetime_convert('UTC', 'UTC',
|
|
$ev['finish'] , $bd_format ))
|
|
: day_translate(datetime_convert('UTC', 'UTC',
|
|
$ev['finish'] , $bd_format )))
|
|
. '](' . System::baseUrl() . '/localtime/?f=&time=' . urlencode(datetime_convert('UTC','UTC',$ev['finish'])) . ")\n";
|
|
}
|
|
|
|
if (strlen($ev['location'])) {
|
|
$o .= t('Location:') . bb2diaspora($ev['location'])
|
|
. "\n";
|
|
}
|
|
|
|
$o .= "\n";
|
|
return $o;
|
|
}
|