SignupHide Sidebar

Statistics

Top 10 Players

Last 20 Activities

Online within 1d

WeChall->Challenges->Challenge: Training: Programming 1

Problem with this chall ? Go to the Training: Programming 1 challenge

timeoutNew to this type of programming

1 2 3 4

hds

Global Rank: 58

Totalscore: 251041

Posts: 58

Thanks: 69

UpVotes: 59

Registered: 16y 272d

The User is Offline

Problem with this chall ?
Feb 21, 2010 - 06:25:43 (15y 8d) Google/translate1Thank You!1Good Post!0Bad Post! link

It's a common error set the header connection to keep-alive in this type of challenges. Look at the httpclient.php and then search for in both methods (GET and POST)

GeSHi`ed php code

 
//...
$header.="Connection: keep-alive";

And then, set it to close:

GeSHi`ed php code

 
//...
$header.="Connection: Close";

Maybe, if you change that, the server won't wait the keep-alive timeout, and the result will send in less seconds.

BjornR1989

Global Rank: 1896

Totalscore: 13892

Posts: 17

Thanks: 20

UpVotes: 16

Registered: 16y 124d

Last Seen: 1y 64d

The User is Offline

Send EMail to BjornR1989

Problem with this chall ?
Feb 21, 2010 - 07:12:58 (15y 8d) Google/translate1Thank You!1Good Post!0Bad Post! link

I looked at general HTTP traffic and almost every time a keep-alive header is sent.
It kept waiting even when i set the socket timeout to 1 second.
I've coded and recoded the script without success but this was the cause of all problems. Thank you HaDeS !

Quote from WeChall
<div class="message">Congratulations, you solved this challenge.</div>

hds

Global Rank: 58

Totalscore: 251041

Posts: 58

Thanks: 69

UpVotes: 59

Registered: 16y 272d

The User is Offline

Problem with this chall ?
Feb 21, 2010 - 22:08:12 (15y 8d) Google/translate1Thank You!1Good Post!0Bad Post! link

Quote from BjornR1989

...
It kept waiting even when i set the socket timeout to 1 second.
...

The timeout in fsockopen in PHP refers to the time that the script waits until there is a succesful connection, if the server takes too long to accept the conection, then we talk about timeout.
For that reason, there is a big difference between timeout on fsockopen and timeout specified in the request header.
I'm happy that you've made the challenge.

Kruptein

Global Rank: 1074

Totalscore: 24085

Posts: 1

Thanks: 1

UpVotes: 1

Registered: 16y 68d

Last Seen: 1y 196d

The User is Offline

RE: Problem with this chall ?
Jun 21, 2011 - 19:01:29 (13y 253d) Google/translate1Thank You!1Good Post!0Bad Post! link

I'm definately messing up somehow, I can't login properly Drool

I'm trying to do it with pycurl and I have this rule: c.setopt(pycurl.COOKIE, "WC4_SID=...") or am I forgetting something?

amypond

Global Rank: 5095

Totalscore: 3182

Posts: 7

Thanks: 10

UpVotes: 11

Registered: 13y 19d

Last Seen: 6y 98d

The User is Offline

RE: Problem with this chall ?
Feb 12, 2012 - 12:38:23 (13y 17d) Google/translate2Thank You!2Good Post!0Bad Post! link

I used a javascript/greasemonkey combo to solve it, but it keeps on getting times slightly than 1.337 (nice leet) ..
Any suggestions ?
Script is very very basic :

GeSHi`ed javascript code

 
var pgcode = document.getElementById("page").innerHTML;
var redirurl = "http://www.wechall.net/challenge/training/programming1/index.php?answer="+pgcode;
window.location = redirurl;

I'm very new to PHP.. haven't tried doing it by that method yet.. (also a bit clueless how I could do it that way Drool

)

gizmore

Global Rank: 228

Totalscore: 94570

Posts: 1695

Thanks: 1365

UpVotes: 929

Registered: 17y 11d

Last Seen: 3d 6h

The User is Offline

Send EMail to gizmore

RE: Problem with this chall ?
Feb 12, 2012 - 12:42:20 (13y 17d) Google/translate1Thank You!1Good Post!0Bad Post! link

The new server is quite slow, and 1.337 seconds might be quite hard for locations far away from the server...
You might want to try "&ajax=1" added to your request to skip generation of some headers and sidebar.
Maybe it helps Smile

Good luck
gizmore

The geeks shall inherit the properties and methods of object earth.

amypond

Global Rank: 5095

Totalscore: 3182

Posts: 7

Thanks: 10

UpVotes: 11

Registered: 13y 19d

Last Seen: 6y 98d

The User is Offline

RE: Problem with this chall ?
Feb 12, 2012 - 13:41:20 (13y 17d) Google/translate2Thank You!2Good Post!0Bad Post! link

The "&ajax=1" didn't drastically reduce the time, although I'm now averaging at around 1.9 secs.
Anyways, will try something else. I'm inside a proxy network, so that's not helping either.
Thanks for the quick reply Smile

space

Global Rank: 550

Totalscore: 46179

Posts: 224

Thanks: 212

UpVotes: 222

Registered: 14y 73d

The User is Offline

RE: Problem with this chall ?
Feb 12, 2012 - 19:07:37 (13y 17d) Google/translate2Thank You!2Good Post!0Bad Post! link

maybe temporerly add $time -= $new_server_time_difference...

Contact only via c3BhY2VAd2VjaGFsbC5uZXQ= or PM...
Windows can be secure... but only if you don't use it Happy

stormsurfer

Global Rank: 543

Totalscore: 47145

Posts: 37

Thanks: 21

UpVotes: 24

Registered: 12y 143d

Last Seen: 7y 254d

The User is Offline

RE: Problem with this chall ?
Oct 11, 2012 - 09:17:19 (12y 140d) Google/translate0Thank You!0Good Post!0Bad Post! link

I'm stuck. I've read the thread and it seems my way should have been working. I'm using curl in php
I've set:

GeSHi`ed Plaintext code

 
$setcookie = 'WC=<cookie value from my browser>; domain=.wechall.net; path=/';
curl_setopt($curl, CURLOPT_COOKIE, $setcookie);

and it's still telling me "Please login by sending your cookies in the HTTP Header"

I've added

GeSHi`ed Plaintext code

 
curl_setopt($curl, CURLOPT_VERBOSE, 1);
curl_setopt($curl, CURLOPT_STDERR, $f);

and I can see in the file created:
Host: www.wechall.net
Accept: */*
Cookie: WC=<my cookie value>; domain=.wechall.net; path=/

but still no joy.

in this thread there was mentioning of PHPSESSID, however it's not set in my browser cookie, is it needed or was changed to WC?
am I missing something? Is the challenge working?

stormsurfer

Global Rank: 543

Totalscore: 47145

Posts: 37

Thanks: 21

UpVotes: 24

Registered: 12y 143d

Last Seen: 7y 254d

The User is Offline

RE: Problem with this chall ?
Oct 11, 2012 - 20:00:17 (12y 140d) Google/translate0Thank You!0Good Post!0Bad Post! link

solved. Problem was I logged in with restrict to ip.

1 2 3 4

quangntenemy, BjornR1989, Redknee, bballMalory, tunelko, silenttrack, n0tHappy, nonfungiblesecurity, vs4vijay, Kruptein, stormsurfer, TheHiveMind, Z, balicocat, Ge0, samuraiblanco, arraez, jcquinterov, hophuocthinh, alfamen2, burhanudinn123, Ben_Dover, stephanduran89, braddie0, SwolloW, dangarbri, csuquvq have subscribed to this thread and receive emails on new posts.
1 people are watching the thread at the moment.
This thread has been viewed 58388 times.