Thanks for that, looks like what I was doing, the issues must be with the
correct versions of DLLs
From: Ross Levis
Sent: Thursday, October 13, 2016 12:57 AM
To: 'NZ Borland Developers Group - Delphi List'
Subject: Re: [DUG] Testing internet web site connections
Regarding code, here is some.
var
Ret: string;
aHTTP: TIdHTTP;
SSLHandler: TIdSSLIOHandlerSocketOpenSSL;
begin
aHTTP := TIdHTTP.Create;
if SameText('https:',copy(URL,1,6)) then
begin
SSLHandler := TIdSSLIOHandlerSocketOpenSSL.Create(aHTTP);
SSLHandler.SSLOptions.Method := sslvSSLv23;
aHTTP.IOHandler := SSLHandler;
end;
try
Ret := aHTTP.Get(URL);
Success := True
except
Success := False
end;
For a specific code I think you may access aHTTP.LastCmdResult.Code.
Ross.
From: Ross Levis [mailto:[email protected]]
Sent: Thursday, 13 October 2016 12:48 a.m.
To: 'NZ Borland Developers Group - Delphi List'
Subject: RE: [DUG] Testing internet web site connections
With a 32-bit compiler you need the 32-bit editions of OpenSSL DLLs installed.
They usually go to Windows\System32. I instruct my users to download the Light
edition on this website.
http://slproweb.com/products/Win32OpenSSL.html
Ross.
From: [email protected]
[mailto:[email protected]] On Behalf Of John Bird
Sent: Wednesday, 12 October 2016 9:30 p.m.
To: NZ Borland Developers Group - Delphi List
Subject: [DUG] Testing internet web site connections
I have been considering writing something to monitor connectivity to a few web
sites- note not detecting whether there is an internet connection, but whether
a number of sites are responding. Some http and some https.
(Have got tired of opening a CMD prompt and pinging sites)
I have experimented with this in Indy for Delphi 2007 and testing a http site
seems simple. https is a little more involved – has to have the right OpenSSL
DLLs in the program’s folder, libeay32.dll and ssleay32.dll and I am not sure
which is the right versions for D2007 to get from https://indy.fulgan.com/SSL/
- for instance D2007 is 32 bit but windows is 64bit, and which version for
which Delphi – there are new versions from V0.9.8r to v1.0.2j. So far just
getting “could not load SSL library” and “error creating SSL context”
Indy seems quite ideal, being asynchronous, doesn’t matter if it takes a while.
I could instead do Indy in Delphi Berlin, or use the non-Indy native internet
connectivity in Berlin but haven’t found useful sample code as a guide for
that.
Any recommendations out there of best tools to use/point me to simple sample
code. Happy just to get as far as a 200 returned or 404 etc.
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