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post2web error (Read 7102 times)

Cedric

post2web error
Jun 8^th, 2010, 10:25pm

Hi, i am using seltars post2web library to upload images and hopefully other files ( txt in this case) http://libraries.seltar.org/postToWeb/
i made all the mentioned steps above but still get the following error.

java.lang.StringIndexOutOfBoundsException: String index out of range: 4
at java.lang.String.substring(String.java:1934)
at org.seltar.Bytes2Web.PostToWeb._post(PostToWeb.java:127)
at org.seltar.Bytes2Web.ImageToWeb.post(ImageToWeb.java:73)
at example_1.keyPressed(example_1.java:47)
at processing.core.PApplet.handleKeyEvent(PApplet.java:1752)
at processing.core.PApplet.dequeueKeyEvents(PApplet.java:1735)
at processing.core.PApplet.handleDraw(PApplet.java:1437)
at processing.core.PApplet.run(PApplet.java:1327)
at java.lang.Thread.run(Thread.java:619)

does anybody have an idea what that could be. i believe i did everything that was necessary. There is nothing to change in the Upload.php, right?

twitter.com/CedricKiefer

PhiLho

Re: post2web error
Reply #1 - Jun 9^th, 2010, 1:27am

With the full stack trace, I can answer...
The faulty line is:
if(responseLine.substring(0,4).equals(("http").substring(0,4))){
where responseLine is the string sent by the server after giving an HTTP 200 (OK) answer.
The problem is that the code takes a substring of this line without first checking the length of the string...
I don't know what is returned by your server (my Upload.php is supposed to return an HTML fragment) but it is too short (perhaps empty).

Note that Upload.php isn't part of postToWeb library, so there is no guarantee that they work correctly together.

Cedric YaBB Moderator Offline Posts: 1838	Re: post2web error Reply #2 - Jun 9^th, 2010, 1:42am i am using the Upload.php that seltar offers at the library page http://libraries.seltar.org/postToWeb/ http://libraries.seltar.org/postToWeb/Upload.phps so i thought they do work together...
	twitter.com/CedricKiefer

PhiLho

Re: post2web error
Reply #3 - Jun 9^th, 2010, 2:31am

Ah, OK, it is a slightly modified version of mine, which indeed returns an URL if everything went OK, and should return an error message otherwise.
Perhaps something goes wrong in the PHP run so nothing is returned although I wonder why a code 200 is returned, in this case...

Note you have to either change the PHP script (the $destDir, the 'portfolio' name) or to fit to the given folder scheme...

Cedric YaBB Moderator Offline Posts: 1838	Re: post2web error Reply #4 - Jun 9^th, 2010, 3:04am i actually thought i did that by creating a "saved" folder as mentioned. but i found the "porfolio" variable and was wondering what that might be as it is not mentioned anywhere. Could you tell me what that is and where it is used. maybe thats where the problem is.
	« Last Edit: Jun 9^th, 2010, 5:15am by Cedric » twitter.com/CedricKiefer

PhiLho

Re: post2web error
Reply #5 - Jun 9^th, 2010, 5:23am

If the Web server is http://www.example.com, the returned URL will be:
http://www.example.com/portfolio/saved/test/ImageName.png
where "test" is the first parameter of post() call and ImageName.png is whatever is created... (if I understood correctly the various parts).
Both the sketch files and the Upload.php file must be in the 'portfolio' folder.

Cedric

Re: post2web error
Reply #6 - Jun 9^th, 2010, 6:46am

hmm. i moved the Upload.php to http://domain.com/portfolio/
in there i created another folder called saved, and in the saved folder a test folder. Not sure if thats the way it is supposed to be.

and i dont know what you mean by sketch files in this case
Quote:

Both the sketch files and the Upload.php file must be in the 'portfolio' folder.

twitter.com/CedricKiefer

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: post2web error Reply #7 - Jun 9^th, 2010, 7:03am The sketch files are the exported files (HTML and jar). Of course, you can change the 'portfolio' part to any name, as long as you change it in the PHP file. Same for 'test' in your PDE file.

Cedric YaBB Moderator Offline Posts: 1838	Re: post2web error Reply #8 - Jun 9^th, 2010, 7:14am ah ok, i see. there was a misunderstanding and maybe the reason for the problem. i run this sketch locally. i dont want to use it online, i just need to upload the files.
	twitter.com/CedricKiefer

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: post2web error Reply #9 - Jun 9^th, 2010, 7:58am Use FTP! Just joking, of course, I understand it can be practical do to this in real time, automatically.

Cedric

Re: post2web error
Reply #10 - Jun 9^th, 2010, 8:27am

yes,i believe it is better to keep it local as i need to compute some files stored on my computer and the webcam as well...

i dont have any problems with your Upload sketch example though. i run it in the processing ide on my pc and the upload works great. So can you see where the problem might be in seltars example sketch or php File ?

twitter.com/CedricKiefer

PhiLho YaBB Moderator Offline Posts: 4190 Near Paris (France)	Re: post2web error Reply #11 - Jun 9^th, 2010, 9:25am So, what is your exact setting, now?

Cedric

Re: post to web error
Reply #12 - Jun 9^th, 2010, 9:54am

so for now, i am just trying to use seltars post to web library. Although it is based on your example and your example seems to work. i am not using any of your files for now.

right now i am using the example sketch, that comes with the library. you can see the source of this sketch here : http://libraries.seltar.org/postToWeb/

i did all the mentioned steps. especially these :

...
5. Upload this php file to your server: Upload.phps, and rename it to Upload.php
6. Create a folder called "saved" in the folder where you put Upload.php
7. Set write permissions on that folder (chmod 0777)

the file is now at http://www.example.com/Upload.php.
There is a folder at http://www.example.com/saved

in the PDE i changed the String to
String url = "http://www.example.com";

and i am running the sketch locally.
i didnt change anything in the PHP file as it wasnt mentioned on the Libraries page and i believe it is not necessary if i name the folder "saved" If i am wrong please correct me.

i also created a folder called "test" in the saved folder.
and i tested both.
http://www.example.com/saved/test
http://www.example.com/portfolio/saved/test

twitter.com/CedricKiefer

PhiLho

Re: post to web error
Reply #13 - Jun 9^th, 2010, 2:03pm

Cedric wrote on Jun 9^th, 2010, 9:54am:

5. Upload this php file to your server: Upload.phps, and rename it to Upload.php

I recall you had issues with this one. If you open the PHP file, you have PHP code, right Not HTML code (since the page was syntax highlighted...).

And if I am not mistaken, the PHP file must be one folder above 'saved', not inside it.

Cedric

Re: post2web error
Reply #14 - Jun 9^th, 2010, 2:31pm

thx PhiLo for figuring that out. that was definitely one of the issues. i downloaded the php file using "save as" without taking a look at it and uploaded it to the server, but you are right, it is actually html . But i copy and pasted the code into a new Upload.php and uploaded it now...

Quote:

And if I am not mistaken, the PHP file must be one folder above 'saved', not inside it.

yes, that's how i did it...
the "saved" folder and the php file are both in the same folder.
maybe my explanation was misleading.

so now as i uploaded the new php its still not working ( same error)
i am pretty sure there is just one little mistake of setting up the folders or a variable. but i cant figure out what that might be.

twitter.com/CedricKiefer

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