How code for https url requests in Qt?

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pcvarma

Beginner

Posts: 3

Friday, January 4th 2008, 11:30am

How code for https url requests in Qt?

I am new to Qt. Trying to write an Application accessing a https web site and get some xml data for processing.

I have tried with the example given in the Qt\4.3.3\examples\network\http, but its not working. I don't know how to make it work.

Any Help? Thanks in advance.

Nicolas SOUCHON

Professional

Posts: 1,106

Friday, January 4th 2008, 1:47pm

RE: How code for https url requests in Qt?

perhaps look at
int QHttp::setSocket( QTcpSocket * socket );
and
QSslSocket class

Nicolas

pccrusher

Beginner

Posts: 11

Sunday, February 10th 2008, 11:40pm

RE: How code for https url requests in Qt?

I have the same problem.
The shit is - trolltech's example network/http doesn'work!

Nicolas SOUCHON

Professional

Posts: 1,106

Monday, February 11th 2008, 12:18am

RE: How code for https url requests in Qt?

I try just now, it works with http

could you give a https site to try?

Nicolas

This post has been edited 1 times, last edit by "Nicolas SOUCHON" (Feb 11th 2008, 12:23am)

krsmichael

Beginner

Posts: 50

Location: California

Occupation: Software Engineer

Tuesday, February 12th 2008, 4:39am

RE: How code for https url requests in Qt?

You have to acquire and build OpenSSL separately. QHTTP fails quietly if you don't have SSL installed. It works, I've done it.

Nicolas SOUCHON

Professional

Posts: 1,106

Tuesday, February 12th 2008, 8:12am

RE: How code for https url requests in Qt?

after openSsl installed, you probably need to reconfigure and rebuild Qt

Nicolas

pccrusher

Beginner

Posts: 11

Tuesday, February 12th 2008, 11:17am

RE: How code for https url requests in Qt?

I have Qt 4.3.3(OpenSource) and OpenSSL 0.9.8 installed on WindowsXP.
Qt's configure.exe tells me
OpenSSL support.............no.
Why?
And, as i have written before, Trolltech's QHttp example still doesn't work via https.

pccrusher

Beginner

Posts: 11

Tuesday, February 12th 2008, 11:26am

RE: How code for https url requests in Qt?

A https site to try is https://sourceforge.net/

Nicolas SOUCHON

Professional

Posts: 1,106

Tuesday, February 12th 2008, 12:32pm

RE: How code for https url requests in Qt?

Quoted

Originally posted by pccrusher
I have Qt 4.3.3(OpenSource) and OpenSSL 0.9.8 installed on WindowsXP.
Qt's configure.exe tells me
OpenSSL support.............no.
Why?
And, as i have written before, Trolltech's QHttp example still doesn't work via https.

if configure says OpenSSL support.............no.
sure ssl sockets will not work

perhaps add some -I / -L option to configure

try configure -openssl -I /path/to/openssl/includes -L /path/to/openssl/library

Nicolas

This post has been edited 1 times, last edit by "Nicolas SOUCHON" (Feb 12th 2008, 12:33pm)

pccrusher

Beginner

Posts: 11

Wednesday, February 13th 2008, 12:02pm

RE: How code for https url requests in Qt?

Quoted

Originally posted by Nicolas SOUCHON
if configure says OpenSSL support.............no.
sure ssl sockets will not work

perhaps add some -I / -L option to configure

try configure -openssl -I /path/to/openssl/includes -L /path/to/openssl/library

Thanks! I reconfigured Qt like this
configure -debug-and-release -openssl
migw32-make

Should I add some -l options to http.pro to make it work with ssl?

pccrusher

Beginner

Posts: 11

Wednesday, February 13th 2008, 4:48pm

RE: How code for https url requests in Qt?

Quoted

Originally posted by Nicolas SOUCHON
if configure says OpenSSL support.............no.
sure ssl sockets will not work

perhaps add some -I / -L option to configure

try configure -openssl -I /path/to/openssl/includes -L /path/to/openssl/library

Installation guide for OpenSSL adviced me to copy opessl libs to C:/MinGW/lib and includes to C:/MinGW/includes.
I did it.
After that, I tried: configure -release -openssl -I C:/MinGW/include -L C:/MinGW/lib
mingw32-make
After that i launched C:\Qt\4.3.3\examples\network\http\release,
entered url https://sourceforge.net/.
The result was the message "Download failed: Found"
Please, any help!

codeslicer

Beginner

Posts: 10

Thursday, February 14th 2008, 1:11am

Try it using https://sourceforge.net/index.php

pccrusher

Beginner

Posts: 11

Thursday, February 14th 2008, 6:07pm

Quoted

Originally posted by codeslicer
Try it using https://sourceforge.net/index.php

Wrong!

pccrusher

Beginner

Posts: 11

Friday, February 15th 2008, 1:15pm

Anyone, please, send me sources of working with https on win32 example network/http!

Nicolas SOUCHON

Professional

Posts: 1,106

Friday, February 15th 2008, 1:34pm

I'm on Linux
It's the same for me
I've add a slot to show ssl errors, I obtain

Quoted

QSocketNotifier: Invalid socket specified
QSocketNotifier: Internal error
QSocketNotifier: Invalid socket specified
QSocketNotifier: Internal error

I've allready used QSslSocket but not with QHttp, only QTcpServer

Nicolas

Messenger

Intermediate

Posts: 426

Location: Lt

Friday, February 15th 2008, 1:36pm

Test with (or google for https sites) -
https://implicit.harvard.edu/
https://j3d-webstart.dev.java.net/test/
The Qt example works for me with addresses. The sourceforge address returns error to me too.
Linux, Qt 4.3.3.

Fighting fire with fire.

pccrusher

Beginner

Posts: 11

Friday, February 15th 2008, 1:45pm

Quoted

Originally posted by Messenger
Test with (or google for https sites) -
https://implicit.harvard.edu/
https://j3d-webstart.dev.java.net/test/
The Qt example works for me with addresses. The sourceforge address returns error to me too.
Linux, Qt 4.3.3.

This urls do work!
And my doesn't
https://isasoft.ru/bg/cash
What to do?

Messenger

Intermediate

Posts: 426

Location: Lt

Friday, February 15th 2008, 1:47pm

Program server side correctly.
I got message "Download failed: Server closed connection unexpectedly ".

Fighting fire with fire.

Nicolas SOUCHON

Professional

Posts: 1,106

Friday, February 15th 2008, 2:09pm

for me

ok with https://implicit.harvard.edu/

not ok with https://j3d-webstart.dev.java.net/test/
Server closed connection unexpectedly.

Nicolas

pccrusher

Beginner

Posts: 11

Saturday, February 16th 2008, 1:48pm

Quoted

Originally posted by Messenger
Program server side correctly.
I got message "Download failed: Server closed connection unexpectedly ".

I got this message too.
But my browser works fine with this url.
Are you sure the problem is wrong server side?