Processing 1.0 - Processing Discourse - Behind proxy server: does processing work?

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Index › Programming Questions & Help › Syntax Questions › Behind proxy server: does processing work

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Behind proxy server: does processing work? (Read 1230 times)

rkshukla

Behind proxy server: does processing work?
Aug 20^th, 2008, 4:34pm

hello there
i am having a weird problem with the loadimage function..
when i try to load a flickr image, it gives unknownhost error
and tells that
The file "http://static.flickr.com/1311/942847774_753e61a3c2_m.jpg" is missing or inaccessible, make sure the URL is valid or that the file has been added to your sketch and is readable.
if one clicks the url it still doesnot open...

however on copy pasting the url, the image is displayed..
any clues why it is happening..

PImage i;
void setup()
{
size(1024,768,P3D);
PImage i = loadImage("http://static.flickr.com/1311/942847774_753e61a3c2_m.jpg","png");
}

void draw()
{
image(i,100,200);
}

DOES PROCESSING GIVE SOME TROUBLE BEHIND A PROXY SERVER?

« Last Edit: Aug 26^th, 2008, 7:55am by rkshukla »

Cedric YaBB Moderator Offline Posts: 1838	Re: load image function Reply #1 - Aug 20^th, 2008, 8:43pm it doenst open by clicking cause it interprets the " at the and as part of the imagelink... http://static.flickr.com/1311/942847774_753e61a3c2_m.jpg i know thats not what your actual problem was
	twitter.com/CedricKiefer

Cedric YaBB Moderator Offline Posts: 1838	Re: load image function Reply #2 - Aug 20^th, 2008, 8:47pm but here is your fixed code : you declared, i twice... and what was ,"png" for ? PImage i; void setup() { size(1024,768,P3D); i = loadImage("http://static.flickr.com/1311/942847774_753e61a3c2_m.jpg"); } void draw() { image(i,100,200); }
	twitter.com/CedricKiefer

rkshukla

Re: load image function
Reply #3 - Aug 22^nd, 2008, 4:04pm

Actually the problem survives:
when i typed cedric's code too
then also it gave the following error:

java.net.UnknownHostException: static.flickr.com

at java.net.PlainSocketImpl.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at sun.net.NetworkClient.doConnect(Unknown Source)

at sun.net.www.http.HttpClient.openServer(Unknown Source)

at sun.net.www.http.HttpClient.openServer(Unknown Source)

at sun.net.www.http.HttpClient.<init>(Unknown Source)

at sun.net.www.http.HttpClient.<init>(Unknown Source)

at sun.net.www.http.HttpClient.New(Unknown Source)

at sun.net.www.http.HttpClient.New(Unknown Source)

at sun.net.www.http.HttpClient.New(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

at java.net.URL.openStream(Unknown Source)

at processing.core.PApplet.openStreamRaw(PApplet.java:4411)

at processing.core.PApplet.openStream(PApplet.java:4380)

at processing.core.PApplet.loadBytes(PApplet.java:4545)

at processing.core.PApplet.loadImage(PApplet.java:3611)

at processing.core.PApplet.loadImage(PApplet.java:3563)

at Temporary_7784_4647.setup(Temporary_7784_4647.java:17)

at processing.core.PApplet.handleDisplay(PApplet.java:1390)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)

The file "http://static.flickr.com/1311/942847774_753e61a3c2_m.jpg" is missing or inaccessible, make sure the URL is valid or that the file has been added to your sketch and is readable.

java.lang.NullPointerException

at processing.core.PGraphics.image(PGraphics.java:2124)

at processing.core.PApplet.image(PApplet.java:7573)

at Temporary_7784_4647.draw(Temporary_7784_4647.java:22)

at processing.core.PApplet.handleDisplay(PApplet.java:1465)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)

java.lang.NullPointerException

at processing.core.PGraphics.image(PGraphics.java:2124)

at processing.core.PApplet.image(PApplet.java:7573)

at Temporary_7784_4647.draw(Temporary_7784_4647.java:22)

at processing.core.PApplet.handleDisplay(PApplet.java:1465)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)

Cedric

Re: load image function
Reply #4 - Aug 22^nd, 2008, 4:17pm

the little code snippet i postet earlier still works fine when i try to execute it. Does it still dont work if you just execute this little piece of code and dont include it in yours?

of still not, try to change it to http://www.dec32.de/public/flickr.jpg and give it a try.

i uploaded it to see if maybe flickr is causing some problems...

twitter.com/CedricKiefer

rkshukla

Re: load image function
Reply #5 - Aug 22^nd, 2008, 4:27pm

java.net.UnknownHostException: www.dec32.de

at java.net.PlainSocketImpl.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at java.net.Socket.connect(Unknown Source)

at sun.net.NetworkClient.doConnect(Unknown Source)

at sun.net.www.http.HttpClient.openServer(Unknown Source)

at sun.net.www.http.HttpClient.openServer(Unknown Source)

at sun.net.www.http.HttpClient.<init>(Unknown Source)

at sun.net.www.http.HttpClient.<init>(Unknown Source)

at sun.net.www.http.HttpClient.New(Unknown Source)

at sun.net.www.http.HttpClient.New(Unknown Source)

at sun.net.www.http.HttpClient.New(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)

at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)

at java.net.URL.openStream(Unknown Source)

at processing.core.PApplet.openStreamRaw(PApplet.java:4411)

at processing.core.PApplet.openStream(PApplet.java:4380)

at processing.core.PApplet.loadBytes(PApplet.java:4545)

at processing.core.PApplet.loadImage(PApplet.java:3611)

at processing.core.PApplet.loadImage(PApplet.java:3563)

at Temporary_4774_7733.setup(Temporary_4774_7733.java:5)

at processing.core.PApplet.handleDisplay(PApplet.java:1390)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)

The file "http://www.dec32.de/public/flickr.jpg" is missing or inaccessible, make sure the URL is valid or that the file has been added to your sketch and is readable.

java.lang.NullPointerException

at processing.core.PGraphics.image(PGraphics.java:2124)

at processing.core.PApplet.image(PApplet.java:7573)

at Temporary_4774_7733.draw(Temporary_4774_7733.java:10)

at processing.core.PApplet.handleDisplay(PApplet.java:1465)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)

java.lang.NullPointerException

at processing.core.PGraphics.image(PGraphics.java:2124)

at processing.core.PApplet.image(PApplet.java:7573)

at Temporary_4774_7733.draw(Temporary_4774_7733.java:10)

at processing.core.PApplet.handleDisplay(PApplet.java:1465)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)

rkshukla YaBB Newbies Offline Posts: 39	Re: load image function Reply #6 - Aug 22^nd, 2008, 4:29pm no it still gives some error does it have something to do with my internet connection

Cedric YaBB Moderator Offline Posts: 1838	Re: load image function Reply #7 - Aug 22^nd, 2008, 4:32pm hmm dont know, you should be online i cant tell whats wrong, its working fine here... Maybe somebody else knows how to interpret this error messages
	twitter.com/CedricKiefer

Cedric

Re: load image function
Reply #8 - Aug 22^nd, 2008, 4:39pm

does it work if you just put the grafik in your data folder ?

i = loadImage("flickr.jpg");

maybe try this to see if the accessing the file online is the problem...

he seems to had a similar problem, just restarted...

i know there are some people like me who didnt restart for days or weeks, hehe...

http://processing.org/discourse/yabb_beta/YaBB.cgi?board=Syntax;action=display;num=1170105667

twitter.com/CedricKiefer

rkshukla YaBB Newbies Offline Posts: 39	Re: load image function Reply #9 - Aug 22^nd, 2008, 4:44pm oh no accessing files from data folder is fine... online is the problem

Cedric

Re: load image function
Reply #10 - Aug 22^nd, 2008, 4:52pm

hmm sorry, no more ideas. its hard to check as it is working here...

but your are not running it from a webserver , do you? Cause...

"
The filename parameter can also be a URL to a file found online. For security reasons, a Processing sketch found online can only download files from the same server from which it came. Getting around this restriction requires a signed applet. "

twitter.com/CedricKiefer

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: load image function Reply #11 - Aug 22^nd, 2008, 8:29pm Maybe you have a firewall blocking Processing? Try to temporarily deactivate any firewall (or proxy) and see if it works.

rkshukla YaBB Newbies Offline Posts: 39	Re: load image function Reply #12 - Aug 25^th, 2008, 3:48pm yes i am using a proxy net conncection(also veryyy slow at this moment) is this a posible reason for problem because even the loadImage example is not working here

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