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Code Issues Packages Projects Releases Wiki Activity

big update including Filters and smarter algorithms

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This commit is contained in:
Christian Haschek
2015-10-29 20:37:20 +01:00
parent f6258fbc3e
commit 3430ec1e15
7 changed files with 279 additions and 44 deletions
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0
.htaccess Executable file → Normal file
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22
README.md Executable file → Normal file
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@@ -4,6 +4,10 @@ PictShare is an multi lingual, open source image hosting service with a simple r
![PictShare](https://www.pictshare.net/da6733407c.png)
The filter update is out!
========
[Check it out](#filters)
## Why would I want to host my own images?
If you own a server (even an home server) you can host your own PictShare instance so you have full control over your content and can delete images hasslefree.
@@ -30,6 +34,24 @@ Just by editing the URL and adding the size (in width**x**height) the image gets
You can limit the number of resizes per image in the ```index.php``` file
## Filters
PictShare also supports multiple filters (at once) that you can apply just by changing the URL.
Filters that need values are set like this: ```filtername_value```. Eg: ```pixelate_10```
Original URL: ```https://www.pictshare.net/b260e36b60.jpg```
| Filter | Paramter | Example URL | Result |
| ---------------------------------------------------------------------- |
| negative | -none- | https://pictshare.net/negative/b260e36b60.jpg | ![Negative](https://pictshare.net/negative/b260e36b60.jpg) |
| grayscale | -none- | https://pictshare.net/negative/b260e36b60.jpg | ![grayscale](https://pictshare.net/negative/b260e36b60.jpg) |
| brightness | -255 to 255 | https://pictshare.net/brightness_100/b260e36b60.jpg | ![brightness](https://pictshare.net/brightness_100/b260e36b60.jpg) |
| edgedetect | -none- | https://pictshare.net/edgedetect/b260e36b60.jpg | ![edgedetect](https://pictshare.net/edgedetect/b260e36b60.jpg) |
| smooth | -10 to 2048 | https://pictshare.net/smooth_3/b260e36b60.jpg | ![smooth](https://pictshare.net/smooth_3/b260e36b60.jpg) |
| contrast | -100 to 100 | https://pictshare.net/contrast_-90/b260e36b60.jpg | ![contrast](https://pictshare.net/contrast_90/b260e36b60.jpg) |
| pixelate | -100 to 100 | https://pictshare.net/pixelate_10/b260e36b60.jpg | ![pixelate](https://pictshare.net/pixelate_10/b260e36b60.jpg) |
## How does the external-upload-API work?
### From URL

10
classes/easyphpthumbnail.php
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@@ -734,6 +734,16 @@ class easyphpthumbnail {
}
public function getIm()
{
return $this->im;
}
public function getThumb()
{
return $this->thumb;
}
/**
* Class destructor
*

89
classes/image.php
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@@ -60,4 +60,93 @@ class Image
return '/'.$filename;
}
function rotate(&$im,$direction)
{
switch($direction)
{
case 'upside': $angle = 180;break;
case 'left': $angle = 90;break;
case 'right': $angle = -90;break;
default: $angle = 0;break;
}
$im = imagerotate($im,$angle,0);
}
/**
* From: https://stackoverflow.com/questions/4590441/php-thumbnail-image-resizing-with-proportions
*/
function resize(&$img,$size)
{
if(!is_numeric($size))
$size = explode('x',$size);
if(is_array($size))
{
$maxwidth = $size[0];
$maxheight = $size[1];
}
else if($size)
{
$maxwidth = $size;
$maxheight = $size;
}
$width = imagesx($img);
$height = imagesy($img);
if($maxwidth>$width)$maxwidth = $width;
if($maxheight>$height)$maxheight = $height;
if ($height > $width)
{
$ratio = $maxheight / $height;
$newheight = $maxheight;
$newwidth = $width * $ratio;
}
else
{
$ratio = $maxwidth / $width;
$newwidth = $maxwidth;
$newheight = $height * $ratio;
}
$newimg = imagecreatetruecolor($newwidth,$newheight);
$palsize = ImageColorsTotal($img);
for ($i = 0; $i < $palsize; $i++)
{
$colors = ImageColorsForIndex($img, $i);
ImageColorAllocate($newimg, $colors['red'], $colors['green'], $colors['blue']);
}
imagecopyresized($newimg, $img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
$img = $newimg;
}
function filter(&$im,$vars)
{
foreach($vars as $var)
{
if(strpos($var,'_'))
{
$a = explode('_',$var);
$var = $a[0];
$val = $a[1];
}
switch($var)
{
case 'negative': imagefilter($im,IMG_FILTER_NEGATE); break;
case 'grayscale': imagefilter($im,IMG_FILTER_GRAYSCALE); break;
case 'brightness': imagefilter($im,IMG_FILTER_BRIGHTNESS,$val); break;
case 'edgedetect': imagefilter($im,IMG_FILTER_EDGEDETECT); break;
case 'smooth': imagefilter($im,IMG_FILTER_SMOOTH,$val); break;
case 'contrast': imagefilter($im,IMG_FILTER_CONTRAST,$val); break;
case 'pixelate': imagefilter($im,IMG_FILTER_PIXELATE,$val); break;
}
}
}
}

189
inc/core.php
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@@ -41,6 +41,11 @@ function aasort (&$array, $key)
$array=$ret;
}
function sanatizeString($string)
{
return preg_replace("/[^a-zA-Z0-9._]+/", "", $string);
}
function callHook()
{
@@ -48,34 +53,98 @@ function callHook()
global $default;
$urlArray = explode("/",$url);
whatToDo($urlArray);
}
function whatToDo($url)
{
$pm = new PictshareModel();
$u1 = preg_replace("/[^a-zA-Z0-9._]+/", "", $urlArray[0]);
$u2 = preg_replace("/[^a-zA-Z0-9._]+/", "", $urlArray[1]);
foreach($url as $el)
{
$el = sanatizeString($el);
$el = strtolower($el);
if(!$el) continue;
if(isImage($u1)) // render the image
renderImage($u1);
else if($u1=='store' || $u1=='originals') //render also with legacy urls
renderImage($u2);
else if(isResizedImage($u1,$u2)) // resize and render
renderResizedImage($u1,$u2);
else if($u1=='thumbs')
renderLegacyResized($u2);
else if(!$u1)
if(isImage($el))
$data['hash']=$el;
else if(isSize($el))
$data['size'] = $el;
else if(isRotation($el))
$data['rotate'] = $el;
else if(isFilter($el))
$data['filter'][] = $el;
else if($legacy = isLegacyThumbnail($el)) //so old uploads will still work
{
$data['hash'] = $legacy['hash'];
$data['size'] = $legacy['size'];
}
}
if(!is_array($data) || !$data['hash'])
{
if($_POST['submit']==$pm->translate(3))
$o=$pm->ProcessUploads();
else
$o.= $pm->renderUploadForm();
$vars['content'] = $o;
$vars['slogan'] = $pm->translate(2);
render($vars);
}
else
header("HTTP/1.0 404 Not Found");
renderImage($data);
}
function isLegacyThumbnail($val)
{
if(strpos($val,'_'))
{
$a = explode('_',$val);
$size = $a[0];
$hash = $a[1];
if(!isSize($size) || !isImage($hash)) return false;
$vars['content'] = $o;
$vars['slogan'] = $pm->translate(2);
return array('hash'=>$hash,'size'=>$size);
}
else return false;
}
render($vars);
function isFilter($var)
{
if(strpos($var,'_'))
{
$a = explode('_',$var);
$var = $a[0];
$val = $a[1];
if(!is_numeric($val)) return false;
}
switch($var)
{
case 'negative':
case 'grayscale':
case 'brightness':
case 'edgedetect':
case 'smooth':
case 'contrast':
case 'pixelate': return true;
default: return false;
}
}
function isRotation($var)
{
switch($var)
{
case 'upside':
case 'left':
case 'right': return true;
default: return false;
}
}
function renderLegacyResized($path)
@@ -95,15 +164,24 @@ function renderLegacyResized($path)
renderResizedImage($size,$hash);
}
function renderImage($hash,$file=false)
function renderImage($data)
{
$hash = $data['hash'];
$pm = new PictshareModel();
if(!$file) $file = DS.$hash;
$path = ROOT.DS.'upload'.DS.$hash.$file;
$base_path = ROOT.DS.'upload'.DS.$hash.DS;
$path = $base_path.$hash;
$type = $pm->isTypeAllowed($pm->getTypeOfFile($path));
$cached = false;
if($pm->countResizedImages($hash)>MAX_RESIZED_IMAGES) //if the number of max resized images is reached, just show the real one
$cachename = getCacheName($data);
$cachepath = $base_path.$cachename;
if(file_exists($cachepath))
{
$path = $cachepath;
$cached = true;
}
if($pm->countResizedImages($hash)>=MAX_RESIZED_IMAGES) //if the number of max resized images is reached, just show the real one
$path = ROOT.DS.'upload'.DS.$hash.DS.$hash;
switch($type)
@@ -111,16 +189,31 @@ function renderImage($hash,$file=false)
case 'jpg':
header ("Content-type: image/jpeg");
$im = imagecreatefromjpeg($path);
if(!$cached)
{
changeImage($im,$data);
imagejpeg($im,$cachepath,95);
}
imagejpeg($im);
break;
case 'png':
header ("Content-type: image/png");
$im = imagecreatefrompng($path);
if(!$cached)
{
changeImage($im,$data);
imagepng($im,$cachepath,1);
}
imagepng($im);
break;
case 'gif':
header ("Content-type: image/gif");
$im = imagecreatefromgif($path);
if(!$cached)
{
changeImage($im,$data);
imagegif($im,$cachepath);
}
imagegif($im);
break;
}
@@ -128,17 +221,48 @@ function renderImage($hash,$file=false)
exit();
}
function renderResizedImage($size,$hash)
function changeImage(&$im,$data)
{
$pm = new PictshareModel();
$im = new Image();
$image = new Image();
foreach($data as $action=>$val)
{
if(is_numeric($size))
$path = $im->getImage($hash,$size);
else
$path = $im->getImage($hash,explode('x',$size));
switch($action)
{
case 'rotate': $image->rotate($im,$val);break;
case 'size': $image->resize($im,$val);break;
case 'filter': $image->filter($im,$val);break;
}
}
}
renderImage($hash,$path);
function getCacheName($data)
{
ksort($data);
$name = array();
foreach($data as $key=>$val)
{
if($key!='hash')
{
if(!is_array($val))
$name[] = $key.'_'.$val;
else
foreach($val as $valdata)
$name[] = $valdata;
}
}
return implode('.',$name).'.'.$data['hash'];
}
function isSize($var)
{
if(is_numeric($var)) return true;
$a = explode('x',$var);
if(count($a)!=2 || !is_numeric($a[0]) || !is_numeric($a[1])) return false;
return true;
}
function isImage($hash)
@@ -148,15 +272,6 @@ function isImage($hash)
return $pm->hashExists($hash);
}
function isResizedImage($resize,$hash)
{
if(!isImage($hash) || !$resize || !$hash) return false;
$a = explode('x',$resize);
if(!is_numeric($resize) && count($a)!=2) return false;
return true;
}
function render($variables=null)
{
if(is_array($variables))

4
models/pictsharemodel.php
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@@ -102,7 +102,7 @@ class PictshareModel extends Model
return array('status'=>'ERR','reason'=>'wrong filetype');
if($dup_id)
return array('status'=>'OK','type'=>$type,'hash'=>$hash,'url'=>DOMAINPATH.$hash);
return array('status'=>'OK','type'=>$type,'hash'=>$hash,'url'=>DOMAINPATH.$hash,'domain'=>DOMAINPATH);
mkdir(ROOT.DS.'upload'.DS.$hash);
$file = ROOT.DS.'upload'.DS.$hash.DS.$hash;
@@ -122,7 +122,7 @@ class PictshareModel extends Model
fclose($fh);
}
return array('status'=>'OK','type'=>$type,'hash'=>$hash,'url'=>DOMAINPATH.$hash);
return array('status'=>'OK','type'=>$type,'hash'=>$hash,'url'=>DOMAINPATH.$hash,'domain'=>DOMAINPATH);
}
function ProcessUploads()

7
template.php
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@@ -13,12 +13,11 @@
<link rel="stylesheet" href="/css/normalize.css">
<link rel="stylesheet" href="/css/pictshare.css">
<script src="/js/vendor/modernizr-2.6.2.min.js"></script>
<!--<script src="/js/highslide-full.js"></script>-->
<script type="text/javascript" src="/js/jquery-2.1.0.min.js"></script>
<TITLE>PictShare - Free picture hosting</TITLE>
<TITLE>PictShare - Free image hosting</TITLE>
<meta name="description" content="Free picture sharing, linking and tracking">
<meta name="keywords" content="picture, share, hosting, free">
<meta name="description" content="Free image sharing, linking and tracking">
<meta name="keywords" content="image, share, hosting, free">
<meta name="robots" content="index, follow">
<meta name="copyright" content="Haschek Solutions">
<meta name="language" content="EN,DE">