Hi JB Stay away from OpenSSL :) The problem using it for SSL is that you have to keep the DLLs up to date as new security vulnerabilities are uncovered. With native API calls updates to the OS should patch any security issues.
The native HTTP Client controls work well. As they map to the underlying OS API, you could write this to run on Windows and then port it across to, a Mac Mini for example :) Sound familiar ? I can show you some code samples tomorrow at Oktoberfest. Cheers D On 12/10/16 22:20, Jeremy Coulter wrote: > JB, make sure you are using the latest Open SSL DLLs as the earlier ones > had security vulnerabilities. > > Jeremy > > > On Wed, Oct 12, 2016 at 9:30 PM, John Bird <johnkb...@paradise.net.nz > <mailto:johnkb...@paradise.net.nz>> wrote: > > 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. > > _______________________________________________ > NZ Borland Developers Group - Delphi mailing list > Post: delphi@listserver.123.net.nz <mailto:delphi@listserver.123.net.nz> > Admin: http://delphi.org.nz/mailman/listinfo/delphi > <http://delphi.org.nz/mailman/listinfo/delphi> > Unsubscribe: send an email to delphi-requ...@listserver.123.net.nz > <mailto:delphi-requ...@listserver.123.net.nz> with Subject: unsubscribe > > > > > _______________________________________________ > NZ Borland Developers Group - Delphi mailing list > Post: delphi@listserver.123.net.nz > Admin: http://delphi.org.nz/mailman/listinfo/delphi > Unsubscribe: send an email to delphi-requ...@listserver.123.net.nz with > Subject: unsubscribe > _______________________________________________ NZ Borland Developers Group - Delphi mailing list Post: delphi@listserver.123.net.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@listserver.123.net.nz with Subject: unsubscribe
