Knah-Tsaeb/MyShaarli
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[add] cache for external thumbshot

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Knah Tsaeb 2014-07-15 15:28:35 +02:00
parent f457180534
commit 9c1201a048
1 changed files with 29 additions and 3 deletions
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28
index.php
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@ -32,6 +32,11 @@
$GLOBALS['config']['externalThumbshot'] = ''; // Url for external thumbnailer
// exemple : http://images.thumbshots.com/image.aspx?cid=dgdfgdfg&v=1&w=120&url=
// the last param must be a url
$GLOBALS['config']['extensionThumbshot'] = 'png'; // Extension return by externalThumbshot
// exemple : png, jpeg, gif
$GLOBALS['config']['ignoreThumbshot'] = array(); // Array of ignore sha1(image_content)
// exemple : cat default_return_image.png | sha1sum
// return 980ea8690eeb1349e3f2a11f79775b6c6dd7ec55
// -----------------------------------------------------------------------------------------------
// You should not touch below (or at your own risks !)
// Optionnal config file.
@ -1985,7 +1990,28 @@ function computeThumbnail($url,$href=false)
if(strlen($url) <= 7){
$url = serverUrl().'/'.$url;
}
if ($GLOBALS['config']['ENABLE_LOCALCACHE'] === true){
$thumbname=hash('sha1',$url).'.'.$GLOBALS['config']['extensionThumbshot'];
$subDir = substr($thumbname, 0, 2);
if (is_file($GLOBALS['config']['CACHEDIR'].'/'.$subDir.'/'.$thumbname)){ // We have the thumbnail, just serve it:
$thumburl = 'data:image/'.$GLOBALS['config']['extensionThumbshot'].';base64,'.base64_encode(file_get_contents($GLOBALS['config']['CACHEDIR'].'/'.$subDir.'/'.$thumbname));
} else {
list($httpstatus,$headers,$data) = getHTTP($GLOBALS['config']['externalThumbshot'].urlencode($url),10);
if (strpos($httpstatus,'200 OK')!==false){
if(!in_array(sha1($data),$GLOBALS['config']['ignoreThumbshot'])){
if(!is_dir($GLOBALS['config']['CACHEDIR'].'/'.$subDir.'/')){
mkdir($GLOBALS['config']['CACHEDIR'].'/'.$subDir.'/',0755);
}
file_put_contents($GLOBALS['config']['CACHEDIR'].'/'.$subDir.'/'.$thumbname,$data); // Save image to cache and serve it
$thumburl = 'data:image/'.$GLOBALS['config']['extensionThumbshot'].';base64,'.base64_encode($data);
} else {
$thumburl = $GLOBALS['config']['externalThumbshot'].urlencode($url);
}
}
}
} else {
$thumburl = $GLOBALS['config']['externalThumbshot'].urlencode($url);
}
return array('src'=>$thumburl,'href'=>$href,'width'=>'120','style'=>'height:auto;','alt'=>'Custom Thumbshot');
}
@ -2537,7 +2563,7 @@ function invalidateCaches()
unset($_SESSION['tags']); // Purge cache attached to session.
pageCache::purgeCache(); // Purge page cache shared by sessions.
}
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=servethumbnail')) { serveThumbnail(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=genthumbnail')) { genThumbnail(); exit; } // Thumbnail generation/cache does not need the link database.
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=rss')) { showRSS(); exit; }
if (isset($_SERVER["QUERY_STRING"]) && startswith($_SERVER["QUERY_STRING"],'do=atom')) { showATOM(); exit; }