fbpost: using the same text formatting functionality like other addons

fbpost/fbpost.php

@@ -184,7 +184,7 @@ function fbpost_content(&$a) {
 	}
 
 	$o = '';
-	
+
 	$fb_installed = false;
 	if (get_pconfig(local_user(),'facebook','post')) {
 		$access_token = get_pconfig(local_user(),'facebook','access_token');
@@ -196,7 +196,7 @@ function fbpost_content(&$a) {
 			}
 		}
 	}
-	
+
 	$appid = get_config('facebook','appid');
 
 	if(! $appid) {
@@ -306,21 +306,21 @@ function fbpost_plugin_admin(&$a, &$o){
 
 
 	$o = '<input type="hidden" name="form_security_token" value="' . get_form_security_token("fbsave") . '">';
-	
+
 	$o .= '<h4>' . t('Facebook API Key') . '</h4>';
-	
+
 	$appid  = get_config('facebook', 'appid'  );
 	$appsecret = get_config('facebook', 'appsecret' );
-	
+
 	$ret1 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appid' LIMIT 1");
 	$ret2 = q("SELECT `v` FROM `config` WHERE `cat` = 'facebook' AND `k` = 'appsecret' LIMIT 1");
 	if ((count($ret1) > 0 && $ret1[0]['v'] != $appid) || (count($ret2) > 0 && $ret2[0]['v'] != $appsecret)) $o .= t('Error: it appears that you have specified the App-ID and -Secret in your .htconfig.php file. As long as they are specified there, they cannot be set using this form.<br><br>');
-	
+
 	$o .= '<label for="fb_appid">' . t('App-ID / API-Key') . '</label><input id="fb_appid" name="appid" type="text" value="' . escape_tags($appid ? $appid : "") . '"><br style="clear: both;">';
 	$o .= '<label for="fb_appsecret">' . t('Application secret') . '</label><input id="fb_appsecret" name="appsecret" type="text" value="' . escape_tags($appsecret ? $appsecret : "") . '"><br style="clear: both;">';
 
 	$o .= '<input type="submit" name="fb_save_keys" value="' . t('Save') . '">';
-	
+
 }
 
 /**
@@ -329,7 +329,7 @@ function fbpost_plugin_admin(&$a, &$o){
 
 function fbpost_plugin_admin_post(&$a){
 	check_form_security_token_redirectOnErr('/admin/plugins/fbpost', 'fbsave');
-	
+
 	if (x($_REQUEST,'fb_save_keys')) {
 		set_config('facebook', 'appid', $_REQUEST['appid']);
 		set_config('facebook', 'appsecret', $_REQUEST['appsecret']);
@@ -357,6 +357,131 @@ function fbpost_jot_nets(&$a,&$b) {
 	}
 }
 
+function fbpost_createmsg($b) {
+	require_once("include/bbcode.php");
+	require_once("include/html2plain.php");
+
+	// Looking for the first image
+	$image = '';
+	if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
+		$image = $matches[3];
+
+	if ($image == '')
+		if(preg_match("/\[img\](.*?)\[\/img\]/is",$b['body'],$matches))
+			$image = $matches[1];
+
+	$multipleimages = (strpos($b['body'], "[img") != strrpos($b['body'], "[img"));
+
+	// When saved into the database the content is sent through htmlspecialchars
+	// That means that we have to decode all image-urls
+	$image = htmlspecialchars_decode($image);
+
+	$body = $b["body"];
+	if ($b["title"] != "")
+		$body = $b["title"]."\n\n".$body;
+
+	if (strpos($body, "[bookmark") !== false) {
+		// splitting the text in two parts:
+		// before and after the bookmark
+		$pos = strpos($body, "[bookmark");
+		$body1 = substr($body, 0, $pos);
+		$body2 = substr($body, $pos);
+
+		// Removing all quotes after the bookmark
+		// they are mostly only the content after the bookmark.
+		$body2 = preg_replace("/\[quote\=([^\]]*)\](.*?)\[\/quote\]/ism",'',$body2);
+		$body2 = preg_replace("/\[quote\](.*?)\[\/quote\]/ism",'',$body2);
+
+		$pos2 = strpos($body2, "[/bookmark]");
+		if ($pos2)
+			$body2 = substr($body2, $pos2 + 11);
+
+		$body = $body1.$body2;
+	}
+
+	// Add some newlines so that the message could be cut better
+	$body = str_replace(array("[quote", "[bookmark", "[/bookmark]", "[/quote]"),
+				array("\n[quote", "\n[bookmark", "[/bookmark]\n", "[/quote]\n"), $body);
+
+	// remove the recycle signs and the names since they aren't helpful on twitter
+	// $recycle = html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
+	// $body = preg_replace( '/'.$recycle.'\[url\=(\w+.*?)\](\w+.*?)\[\/url\]/i', "\n", $body);
+
+	// At first convert the text to html
+	$html = bbcode($body, false, false, 2);
+
+	// Then convert it to plain text
+	//$msg = trim($b['title']." \n\n".html2plain($html, 0, true));
+	$msg = trim(html2plain($html, 0, true));
+	$msg = html_entity_decode($msg,ENT_QUOTES,'UTF-8');
+
+	// Removing multiple newlines
+	while (strpos($msg, "\n\n\n") !== false)
+		$msg = str_replace("\n\n\n", "\n\n", $msg);
+
+	// Removing multiple spaces
+	while (strpos($msg, "  ") !== false)
+		$msg = str_replace("  ", " ", $msg);
+
+	// Removing URLs
+	$msg = preg_replace('/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/i', "", $msg);
+
+	$msg = trim($msg);
+
+	$link = '';
+	$linkname = '';
+	// look for bookmark-bbcode and handle it with priority
+	if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$b['body'],$matches)) {
+		$link = $matches[1];
+		$linkname = $matches[2];
+	}
+
+	$multiplelinks = (strpos($b['body'], "[bookmark") != strrpos($b['body'], "[bookmark"));
+
+	if ($multiplelinks)
+		$linkname = '';
+
+	// If there is no bookmark element then take the first link
+	if ($link == '') {
+		$links = collecturls($html);
+		if (sizeof($links) > 0) {
+			reset($links);
+			$link = current($links);
+		}
+		$multiplelinks = (sizeof($links) > 1);
+	}
+
+	$msglink = "";
+	if ($multiplelinks)
+		$msglink = $b["plink"];
+	else if ($link != "")
+		$msglink = $link;
+	else if ($multipleimages)
+		$msglink = $b["plink"];
+	else if ($image != "")
+		$msglink = $image;
+
+	// Removing multiple spaces - again
+	while (strpos($msg, "  ") !== false)
+		$msg = str_replace("  ", " ", $msg);
+
+	if ($msglink != "") {
+		// Looking if the link points to an image
+		$img_str = fetch_url($msglink);
+
+		$tempfile = tempnam(get_config("system","temppath"), "cache");
+		file_put_contents($tempfile, $img_str);
+		$mime = image_type_to_mime_type(exif_imagetype($tempfile));
+		unlink($tempfile);
+	} else
+		$mime = "";
+
+	if (($image == $msglink) OR (substr($mime, 0, 6) == "image/"))
+		return(array("msg"=>trim($msg), "link"=>"", "linkname"=>$linkname, "image"=>$msglink));
+	else
+		return(array("msg"=>trim($msg), "link"=>$msglink, "linkname"=>$linkname,"image"=>$image));
+}
+
 /**
  * @param App $a
  * @param object $b
@@ -502,7 +627,7 @@ function fbpost_post_hook(&$a,&$b) {
 
 				// if($b['verb'] == ACTIVITY_DISLIKE)
 				//	$msg = trim(strip_tags(bbcode($msg)));
-
+/*
 				// Looking for the first image
 				$image = '';
 				if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$b['body'],$matches))
@@ -592,6 +717,12 @@ function fbpost_post_hook(&$a,&$b) {
 				// Remove trailing and leading spaces
 				$msg = trim($msg);
 
+*/
+				$msgarr = fbpost_createmsg($b);
+				$msg = $msgarr["msg"];
+				$link = $msgarr["link"];
+				$image = $msgarr["image"];
+				$linkname = $msgarr["linkname"];
 
 				// Fallback - if message is empty
 				if(!strlen($msg))
@@ -615,11 +746,11 @@ function fbpost_post_hook(&$a,&$b) {
 					$postvars = array('access_token' => $fb_token);
 				} else {
 					// message, picture, link, name, caption, description, source, place, tags
-					if(trim($link) != "")
+					//if(trim($link) != "")
-						if (@exif_imagetype($link) != 0) {
+					//	if (@exif_imagetype($link) != 0) {
-							$image = $link;
+					//		$image = $link;
-							$link = "";
+					//		$link = "";
-						}
+					//	}
 
 					$postvars = array(
 						'access_token' => $fb_token,