@ -184,4 +184,149 @@ public class ViewImage {
return scaled ;
}
/ *
public static BufferedImage respond ( final RequestHeader header , final serverObjects post , final serverSwitch env ) {
final Switchboard sb = ( Switchboard ) env ;
// the url to the image can be either submitted with an url in clear text, or using a license key
// if the url is given as clear text, the user must be authorized as admin
// the license can be used also from non-authorized users
String urlString = post . get ( "url" , "" ) ;
final String urlLicense = post . get ( "code" , "" ) ;
final boolean auth = ( header . get ( HeaderFramework . CONNECTION_PROP_CLIENTIP , "" ) ) . equals ( "localhost" ) | | sb . verifyAuthentication ( header , true ) ; // handle access rights
DigestURI url = null ;
if ( ( urlString . length ( ) > 0 ) & & ( auth ) ) try {
url = new DigestURI ( urlString ) ;
} catch ( final MalformedURLException e1 ) {
url = null ;
}
if ( ( url = = null ) & & ( urlLicense . length ( ) > 0 ) ) {
url = sb . licensedURLs . releaseLicense ( urlLicense ) ;
urlString = ( url = = null ) ? null : url . toNormalform ( true , true ) ;
}
if ( urlString = = null ) return null ;
int width = post . getInt ( "width" , 0 ) ;
int height = post . getInt ( "height" , 0 ) ;
int maxwidth = post . getInt ( "maxwidth" , 0 ) ;
int maxheight = post . getInt ( "maxheight" , 0 ) ;
// get the image as stream
if ( MemoryControl . shortStatus ( ) ) iconcache . clear ( ) ;
BufferedImage image = iconcache . get ( urlString ) ;
if ( image = = null ) {
byte [ ] resourceb = null ;
if ( url ! = null ) try {
resourceb = sb . loader . loadContent ( sb . loader . request ( url , false , true ) , CrawlProfile . CacheStrategy . IFEXIST ) ;
} catch ( IOException e ) {
Log . logFine ( "ViewImage" , "cannot load: " + e . getMessage ( ) ) ;
}
byte [ ] imgb = null ;
if ( resourceb = = null ) {
if ( urlString . endsWith ( ".ico" ) ) {
// load default favicon dfltfvcn.ico
if ( defaulticonb = = null ) try {
imgb = FileUtils . read ( new File ( sb . getAppPath ( ) , defaulticon ) ) ;
} catch ( final IOException e ) {
return null ;
} else {
imgb = defaulticonb ;
}
} else {
return null ;
}
} else {
final InputStream imgStream = new ByteArrayInputStream ( resourceb ) ;
// read image data
try {
imgb = FileUtils . read ( imgStream ) ;
} catch ( final IOException e ) {
return null ;
} finally {
try {
imgStream . close ( ) ;
} catch ( final Exception e ) { }
}
}
// read image
image = ImageParser . parse ( urlString , imgb ) ;
if ( image = = null | | ( auth & & ( width = = 0 | | height = = 0 ) & & maxwidth = = 0 & & maxheight = = 0 ) ) return image ;
// find original size
final int h = image . getHeight ( ) ;
final int w = image . getWidth ( ) ;
// in case of not-authorized access shrink the image to prevent
// copyright problems, so that images are not larger than thumbnails
if ( auth ) {
maxwidth = ( maxwidth = = 0 ) ? w : maxwidth ;
maxheight = ( maxheight = = 0 ) ? h : maxheight ;
} else if ( ( w > 16 ) | | ( h > 16 ) ) {
maxwidth = Math . min ( 96 , w ) ;
maxheight = Math . min ( 96 , h ) ;
} else {
maxwidth = 16 ;
maxheight = 16 ;
}
// calculate width & height from maxwidth & maxheight
if ( maxwidth < w | | maxheight < h ) {
// scale image
final double hs = ( w < = maxwidth ) ? 1.0 : ( ( double ) maxwidth ) / ( ( double ) w ) ;
final double vs = ( h < = maxheight ) ? 1.0 : ( ( double ) maxheight ) / ( ( double ) h ) ;
double scale = Math . min ( hs , vs ) ;
//if (!auth) scale = Math.min(scale, 0.6); // this is for copyright purpose
if ( scale < 1.0 ) {
width = Math . max ( 1 , ( int ) ( w * scale ) ) ;
height = Math . max ( 1 , ( int ) ( h * scale ) ) ;
} else {
width = Math . max ( 1 , w ) ;
height = Math . max ( 1 , h ) ;
}
if ( w ! = width & & h ! = height ) {
// compute scaled image
Image scaled = image . getScaledInstance ( width , height , Image . SCALE_AREA_AVERAGING ) ;
final MediaTracker mediaTracker = new MediaTracker ( new Container ( ) ) ;
mediaTracker . addImage ( scaled , 0 ) ;
try { mediaTracker . waitForID ( 0 ) ; } catch ( final InterruptedException e ) { }
// make a BufferedImage out of that
BufferedImage i = new BufferedImage ( width , height , BufferedImage . TYPE_INT_RGB ) ;
try {
i . createGraphics ( ) . drawImage ( scaled , 0 , 0 , width , height , null ) ;
image = i ;
// check outcome
//Raster raster = i.getData();
//int[] pixel = new int[3];
//pixel = raster.getPixel(0, 0, pixel);
//if (pixel[0] != 0 || pixel[1] != 0 || pixel[2] != 0) image = i;
} catch ( Exception e ) {
//java.lang.ClassCastException: [I cannot be cast to [B
}
}
} else {
// do not scale
width = w ;
height = h ;
}
if ( ( height = = 16 ) & & ( width = = 16 ) & & ( resourceb ! = null ) ) {
// this might be a favicon, store image to cache for faster re-load later on
iconcache . put ( urlString , image ) ;
}
}
return image ;
}
* /
}
orbiter
14 years ago