mirror of
https://github.com/friendica/friendica
synced 2024-12-23 16:40:17 +00:00
342 lines
15 KiB
PHP
342 lines
15 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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function stripcode_br_cb($s) {
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return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
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}
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function tryoembed($match){
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$url = ((count($match)==2)?$match[1]:$match[2]);
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// logger("tryoembed: $url");
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$o = oembed_fetch_url($url);
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//echo "<pre>"; var_dump($match, $url, $o); killme();
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if ($o->type=="error") return $match[0];
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$html = oembed_format_object($o);
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return $html; //oembed_iframe($html,$o->width,$o->height);
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}
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// [noparse][i]italic[/i][/noparse] turns into
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// [noparse][ i ]italic[ /i ][/noparse],
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// to hide them from parser.
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function bb_spacefy($st) {
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$whole_match = $st[0];
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$captured = $st[1];
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$spacefied = preg_replace("/\[(.*?)\]/", "[ $1 ]", $captured);
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$new_str = str_replace($captured, $spacefied, $whole_match);
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return $new_str;
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}
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// The previously spacefied [noparse][ i ]italic[ /i ][/noparse],
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// now turns back and the [noparse] tags are trimed
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// returning [i]italic[/i]
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function bb_unspacefy_and_trim($st) {
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$whole_match = $st[0];
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$captured = $st[1];
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$unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
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return $unspacefied;
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}
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// BBcode 2 HTML was written by WAY2WEB.net
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// extended to work with Mistpark/Friendica - Mike Macgirvin
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function bbcode($Text,$preserve_nl = false, $tryoembed = true) {
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$a = get_app();
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// Hide all [noparse] contained bbtags spacefying them
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$Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_spacefy',$Text);
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$Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_spacefy',$Text);
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$Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_spacefy',$Text);
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// Extract a single private image which uses data url's since preg has issues with
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// large data sizes. Stash it away while we do bbcode conversion, and then put it back
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// in after we've done all the regex matching. We cannot use any preg functions to do this.
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$saved_image = '';
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$img_start = strpos($Text,'[img]data:');
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$img_end = strpos($Text,'[/img]');
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if($img_start !== false && $img_end !== false && $img_end > $img_start) {
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$start_fragment = substr($Text,0,$img_start);
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$img_start += strlen('[img]');
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$saved_image = substr($Text,$img_start,$img_end - $img_start);
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$end_fragment = substr($Text,$img_end + strlen('[/img]'));
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// logger('saved_image: ' . $saved_image,LOGGER_DEBUG);
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$Text = $start_fragment . '[$#saved_image#$]' . $end_fragment;
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}
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// If we find any event code, turn it into an event.
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// After we're finished processing the bbcode we'll
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// replace all of the event code with a reformatted version.
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$ev = bbtoevent($Text);
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// Replace any html brackets with HTML Entities to prevent executing HTML or script
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// Don't use strip_tags here because it breaks [url] search by replacing & with amp
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$Text = str_replace("<", "<", $Text);
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$Text = str_replace(">", ">", $Text);
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// Convert new line chars to html <br /> tags
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// nlbr seems to be hopelessly messed up
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// $Text = nl2br($Text);
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// We'll emulate it.
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$Text = str_replace("\r\n","\n", $Text);
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$Text = str_replace(array("\r","\n"), array('<br />','<br />'), $Text);
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if($preserve_nl)
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$Text = str_replace(array("\n","\r"), array('',''),$Text);
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// Set up the parameters for a URL search string
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$URLSearchString = "^\[\]";
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// Set up the parameters for a MAIL search string
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$MAILSearchString = $URLSearchString;
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// Perform URL Search
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$Text = preg_replace("/([^\]\=]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="external-link">$2</a>', $Text);
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if ($tryoembed)
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$Text = preg_replace_callback("/\[bookmark\=([^\]]*)\].*?\[\/bookmark\]/ism",'tryoembed',$Text);
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$Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism",'[url=$1]$2[/url]',$Text);
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if ($tryoembed)
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$Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism",'tryoembed',$Text);
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$Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="external-link">$1</a>', $Text);
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$Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="external-link">$2</a>', $Text);
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//$Text = preg_replace("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
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// we may need to restrict this further if it picks up too many strays
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// link acct:user@host to a webfinger profile redirector
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$Text = preg_replace('/acct:(.*?)@(.*?)([ ,])/', '<a href="' . $a->get_baseurl() . '/acctlink?addr=' . "$1@$2"
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. '" target="extlink" >acct:' . "$1@$2$3" . '</a>',$Text);
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// Perform MAIL Search
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$Text = preg_replace("/\[mail\]([$MAILSearchString]*)\[\/mail\]/", '<a href="mailto:$1">$1</a>', $Text);
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$Text = preg_replace("/\[mail\=([$MAILSearchString]*)\](.*?)\[\/mail\]/", '<a href="mailto:$1">$2</a>', $Text);
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// Check for bold text
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$Text = preg_replace("(\[b\](.*?)\[\/b\])ism",'<strong>$1</strong>',$Text);
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// Check for Italics text
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$Text = preg_replace("(\[i\](.*?)\[\/i\])ism",'<em>$1</em>',$Text);
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// Check for Underline text
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$Text = preg_replace("(\[u\](.*?)\[\/u\])ism",'<u>$1</u>',$Text);
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// Check for strike-through text
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$Text = preg_replace("(\[s\](.*?)\[\/s\])ism",'<strike>$1</strike>',$Text);
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// Check for over-line text
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$Text = preg_replace("(\[o\](.*?)\[\/o\])ism",'<span class="overline">$1</span>',$Text);
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// Check for colored text
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$Text = preg_replace("(\[color=(.*?)\](.*?)\[\/color\])ism","<span style=\"color: $1;\">$2</span>",$Text);
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// Check for sized text
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// [size=50] --> font-size: 50px (with the unit).
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$Text = preg_replace("(\[size=(\d*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1px;\">$2</span>",$Text);
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$Text = preg_replace("(\[size=(.*?)\](.*?)\[\/size\])ism","<span style=\"font-size: $1;\">$2</span>",$Text);
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// Check for centered text
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$Text = preg_replace("(\[center\](.*?)\[\/center\])ism","<div style=\"text-align:center;\">$1</div>",$Text);
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// Check for list text
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$Text = str_replace("[*]", "<li>", $Text);
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$Text = preg_replace("/\[li\](.*?)\[\/li\]/ism", '<li>$1</li>' ,$Text);
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// handle nested lists
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$endlessloop = 0;
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while ((((strpos($Text, "[/list]") !== false) && (strpos($Text, "[list") !== false)) ||
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((strpos($Text, "[/ol]") !== false) && (strpos($Text, "[ol]") !== false)) ||
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((strpos($Text, "[/ul]") !== false) && (strpos($Text, "[ul]") !== false))) && (++$endlessloop < 20)) {
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$Text = preg_replace("/\[list\](.*?)\[\/list\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
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$Text = preg_replace("/\[list=\](.*?)\[\/list\]/ism", '<ul class="listnone" style="list-style-type: none;">$1</ul>' ,$Text);
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$Text = preg_replace("/\[list=1\](.*?)\[\/list\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
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$Text = preg_replace("/\[list=((?-i)i)\](.*?)\[\/list\]/ism",'<ul class="listlowerroman" style="list-style-type: lower-roman;">$2</ul>' ,$Text);
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$Text = preg_replace("/\[list=((?-i)I)\](.*?)\[\/list\]/ism", '<ul class="listupperroman" style="list-style-type: upper-roman;">$2</ul>' ,$Text);
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$Text = preg_replace("/\[list=((?-i)a)\](.*?)\[\/list\]/ism", '<ul class="listloweralpha" style="list-style-type: lower-alpha;">$2</ul>' ,$Text);
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$Text = preg_replace("/\[list=((?-i)A)\](.*?)\[\/list\]/ism", '<ul class="listupperalpha" style="list-style-type: upper-alpha;">$2</ul>' ,$Text);
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$Text = preg_replace("/\[ul\](.*?)\[\/ul\]/ism", '<ul class="listbullet" style="list-style-type: circle;">$1</ul>' ,$Text);
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$Text = preg_replace("/\[ol\](.*?)\[\/ol\]/ism", '<ul class="listdecimal" style="list-style-type: decimal;">$1</ul>' ,$Text);
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}
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$Text = preg_replace("/\[th\](.*?)\[\/th\]/sm", '<th>$1</th>' ,$Text);
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$Text = preg_replace("/\[td\](.*?)\[\/td\]/sm", '<td>$1</td>' ,$Text);
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$Text = preg_replace("/\[tr\](.*?)\[\/tr\]/sm", '<tr>$1</tr>' ,$Text);
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$Text = preg_replace("/\[table\](.*?)\[\/table\]/sm", '<table>$1</table>' ,$Text);
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$Text = preg_replace("/\[table border=1\](.*?)\[\/table\]/sm", '<table border="1" >$1</table>' ,$Text);
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$Text = preg_replace("/\[table border=0\](.*?)\[\/table\]/sm", '<table border="0" >$1</table>' ,$Text);
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$Text = str_replace('[hr]','<hr />', $Text);
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// This is actually executed in prepare_body()
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$Text = str_replace('[nosmile]','',$Text);
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// Check for font change text
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$Text = preg_replace("/\[font=(.*?)\](.*?)\[\/font\]/sm","<span style=\"font-family: $1;\">$2</span>",$Text);
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// Declare the format for [code] layout
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// $Text = preg_replace_callback("/\[code\](.*?)\[\/code\]/ism",'stripcode_br_cb',$Text);
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$CodeLayout = '<code>$1</code>';
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// Check for [code] text
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$Text = preg_replace("/\[code\](.*?)\[\/code\]/ism","$CodeLayout", $Text);
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// Declare the format for [spoiler] layout
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$SpoilerLayout = '<blockquote class="spoiler">$1</blockquote>';
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// Check for [spoiler] text
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// handle nested quotes
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$endlessloop = 0;
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while ((strpos($Text, "[/spoiler]") !== false) and (strpos($Text, "[spoiler]") !== false) and (++$endlessloop < 20))
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$Text = preg_replace("/\[spoiler\](.*?)\[\/spoiler\]/ism","$SpoilerLayout", $Text);
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// Check for [spoiler=Author] text
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$t_wrote = t('$1 wrote:');
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// handle nested quotes
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$endlessloop = 0;
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while ((strpos($Text, "[/spoiler]")!== false) and (strpos($Text, "[spoiler=") !== false) and (++$endlessloop < 20))
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$Text = preg_replace("/\[spoiler=[\"\']*(.*?)[\"\']*\](.*?)\[\/spoiler\]/ism",
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"<br /><strong class=".'"spoiler"'.">" . $t_wrote . "</strong><blockquote class=".'"spoiler"'.">$2</blockquote>",
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$Text);
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// Declare the format for [quote] layout
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$QuoteLayout = '<blockquote>$1</blockquote>';
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// Check for [quote] text
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// handle nested quotes
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$endlessloop = 0;
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while ((strpos($Text, "[/quote]") !== false) and (strpos($Text, "[quote]") !== false) and (++$endlessloop < 20))
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$Text = preg_replace("/\[quote\](.*?)\[\/quote\]/ism","$QuoteLayout", $Text);
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// Check for [quote=Author] text
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$t_wrote = t('$1 wrote:');
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// handle nested quotes
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$endlessloop = 0;
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while ((strpos($Text, "[/quote]")!== false) and (strpos($Text, "[quote=") !== false) and (++$endlessloop < 20))
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$Text = preg_replace("/\[quote=[\"\']*(.*?)[\"\']*\](.*?)\[\/quote\]/ism",
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"<br /><strong class=".'"author"'.">" . $t_wrote . "</strong><blockquote>$2</blockquote>",
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$Text);
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// [img=widthxheight]image source[/img]
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//$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="height: $2px; width: $1px;" >', $Text);
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$Text = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '<img src="$3" style="width: $1px;" >', $Text);
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// Images
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// [img]pathtoimage[/img]
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$Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
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$Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="425" height="350"><a href="$1">$1</a></video>', $Text);
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$Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
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// Try to Oembed
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if ($tryoembed) {
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$Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
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$Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
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}
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// html5 video and audio
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$Text = preg_replace("/\[iframe\](.*?)\[\/iframe\]/ism", '<iframe src="$1" width="425" height="350"><a href="$1">$1</a></iframe>', $Text);
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// Youtube extensions
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if ($tryoembed) {
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$Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
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$Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
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$Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism",'tryoembed',$Text);
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}
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$Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
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$Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/embed\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
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$Text = preg_replace("/\[youtube\]https?:\/\/youtu.be\/(.*?)\[\/youtube\]/ism",'[youtube]$1[/youtube]',$Text);
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$Text = preg_replace("/\[youtube\]([A-Za-z0-9\-_=]+)(.*?)\[\/youtube\]/ism", '<iframe width="425" height="350" src="http://www.youtube.com/embed/$1" frameborder="0" ></iframe>', $Text);
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if ($tryoembed) {
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$Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
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$Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism",'tryoembed',$Text);
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}
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$Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
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$Text = preg_replace("/\[vimeo\]https?:\/\/vimeo.com\/([0-9]+)(.*?)\[\/vimeo\]/ism",'[vimeo]$1[/vimeo]',$Text);
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$Text = preg_replace("/\[vimeo\]([0-9]+)(.*?)\[\/vimeo\]/ism", '<iframe width="425" height="350" src="http://player.vimeo.com/video/$1" frameborder="0" ></iframe>', $Text);
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// $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
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// oembed tag
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$Text = oembed_bbcode2html($Text);
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// If we found an event earlier, strip out all the event code and replace with a reformatted version.
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// Replace the event-start section with the entire formatted event. The other bbcode is stripped.
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// Summary (e.g. title) is required, earlier revisions only required description (in addition to
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// start which is always required). Allow desc with a missing summary for compatibility.
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if((x($ev,'desc') || x($ev,'summary')) && x($ev,'start')) {
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$sub = format_event_html($ev);
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$Text = preg_replace("/\[event\-summary\](.*?)\[\/event\-summary\]/ism",'',$Text);
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$Text = preg_replace("/\[event\-description\](.*?)\[\/event\-description\]/ism",'',$Text);
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$Text = preg_replace("/\[event\-start\](.*?)\[\/event\-start\]/ism",$sub,$Text);
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$Text = preg_replace("/\[event\-finish\](.*?)\[\/event\-finish\]/ism",'',$Text);
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$Text = preg_replace("/\[event\-location\](.*?)\[\/event\-location\]/ism",'',$Text);
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$Text = preg_replace("/\[event\-adjust\](.*?)\[\/event\-adjust\]/ism",'',$Text);
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}
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// Unhide all [noparse] contained bbtags unspacefying them
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// and triming the [noparse] tag.
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$Text = preg_replace_callback("/\[noparse\](.*?)\[\/noparse\]/ism", 'bb_unspacefy_and_trim',$Text);
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$Text = preg_replace_callback("/\[nobb\](.*?)\[\/nobb\]/ism", 'bb_unspacefy_and_trim',$Text);
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$Text = preg_replace_callback("/\[pre\](.*?)\[\/pre\]/ism", 'bb_unspacefy_and_trim',$Text);
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$Text = preg_replace('/\[\&\;([#a-z0-9]+)\;\]/','&$1;',$Text);
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// fix any escaped ampersands that may have been converted into links
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$Text = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$Text);
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if(strlen($saved_image))
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$Text = str_replace('[$#saved_image#$]','<img src="' . $saved_image .'" alt="' . t('Image/photo') . '" />',$Text);
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call_hooks('bbcode',$Text);
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return $Text;
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}
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