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Check for hashtags when storing them and eventually adding hashtag links

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This commit is contained in:
Michael Vogel 2015-03-01 17:33:55 +01:00
parent 20208acb23
commit ac3a4824df
2 changed files with 64 additions and 0 deletions
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61
include/items.php
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@ -1239,6 +1239,9 @@ function item_store($arr,$force_parent = false, $notify = false, $dontcache = fa
logger("item_store: Set network to ".$arr["network"]." for ".$arr["uri"], LOGGER_DEBUG);
}
// Check for hashtags in the body and repair or add hashtag links
item_body_set_hashtags($arr);
$arr['thr-parent'] = $arr['parent-uri'];
if($arr['parent-uri'] === $arr['uri']) {
$parent_id = 0;
@ -1556,6 +1559,64 @@ function item_store($arr,$force_parent = false, $notify = false, $dontcache = fa
return $current_post;
}
function item_body_set_hashtags(&$item) {
$tags = get_tags($item["body"]);
// No hashtags?
if(!count($tags))
return(false);
// This sorting is important when there are hashtags that are part of other hashtags
// Otherwise there could be problems with hashtags like #test and #test2
rsort($tags);
$a = get_app();
$URLSearchString = "^\[\]";
// All hashtags should point to the home server
$item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=".$a->get_baseurl()."/search?tag=$2]$2[/url]", $item["body"]);
$item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=".$a->get_baseurl()."/search?tag=$2]$2[/url]", $item["tag"]);
// mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
$item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
function ($match){
return("[url=".$match[1]."]".str_replace("#", "#", $match[2])."[/url]");
},$item["body"]);
$item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
function ($match){
return("[bookmark=".$match[1]."]".str_replace("#", "#", $match[2])."[/bookmark]");
},$item["body"]);
$item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
function ($match){
return("[attachment ".str_replace("#", "#", $match[1])."]".$match[2]."[/attachment]");
},$item["body"]);
// Repair recursive urls
$item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#$2", $item["body"]);
foreach($tags as $tag) {
if(strpos($tag,'#') !== 0)
continue;
if(strpos($tag,'[url='))
continue;
$basetag = str_replace('_',' ',substr($tag,1));
$item["body"] = str_replace($tag,'#[url='.$a->get_baseurl().'/search?tag='.rawurlencode($basetag).']'.$basetag.'[/url]', $item["body"]);
}
// Convert back the masked hashtags
$item["body"] = str_replace("#", "#", $item["body"]);
}
function get_item_guid($id) {
$r = q("SELECT `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($id));
if (count($r))

3
include/text.php
View file

@ -752,6 +752,9 @@ if(! function_exists('get_tags')) {
function get_tags($s) {
$ret = array();
// Convert hashtag links to hashtags
$s = preg_replace("/#\[url\=([^\[\]]*)\](.*?)\[\/url\]/ism", "#$2", $s);
// ignore anything in a code block
$s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);