Hi,

Sorry for being a nuisance again :-[ ....

We need to do a command line program to run n Linux (PC, later ARM), that reads a mail via POP3 and then does some communication towards some HTTP server (reading some pages and setting a value with some cgi program running there.)

I do know that decent HTTP and POP3 components are available with Indy, but I am afraid of trying to use Indy on Lazarus/ARM/Linux.

As we already successfully did an FTP client program on Lazarus with lnet, I decided to try to use lnet, here again.

So I installed the latest lnet package and found that in fact a HTTP client component is available.

Up till now, I failed to find a decent documentation, so I was not able to read a page from a web server (in fact I would need a proxy for some environments, but - at least on Linux - I suppose there is a system wide proxy definition that might automatically apply.

In fact "connect" seems to work, but what now ?....

Seemingly lnet does not provide a POP3 client component out of the box. So what to do ?

Thanks for any pointers,
-Michael

Did you have look at synapse ? http://synapse.ararat.cz/doku.php Works fine under Linux and Windows, 32 and 64 bit, both with Lazarus and Delphi. Stephane

Le 03/12/2012 11:59, Michael Schnell a ?crit :

I currently use Indy 10 (10.5.8) successfully with Win32-Win64-WinCE(Arm)-Linux64 with Lazarus (1.1) and Delphi (5, 2007), all platforms talking to each other over TCP/IP. Pretty simple to use (a little more difficult to compile for Lazarus)
Blocking sockets with timeouts

Stephane Carre wrote

Did you have look at synapse ? http://synapse.ararat.cz/doku.php Works fine under Linux and Windows, 32 and 64 bit, both with Lazarus and Delphi.

Great.

I d/lded the sources (snapshot).

Up til now I failed to find in the docs if/how I can do a http client.

Thanks for any pointers.

-Michael

Michael Schnell wrote

Up til now I failed to find in the docs if/how I can do a http client.

It seems that "THTTPSend" is supplied for this purpose (no Idea why it is not called "THTTPClient".

In Fact "THTTPSend" even has published properties, so it seems that it can be installed as a visual component.

Is there a package file that allows for doing this ?

-Michael

Michael Schnell wrote

Is there a package file that allows for doing this ?

Found it. Silly me :-[ .

-Michael

More talk to myself...

It does install but when installing it the IDE says it has no "register", thus no visual components are created.

But it does have "published" properties.... ?!?!?!

-Michael

Search for synapse visual packages.

The synapse classes are not visual. There is a package that has visual counterparts.

That said, the advantage of having these classes visual is nearly non-existent.

Michael.

That said, the advantage of having these classes visual is nearly non-existent.

Yep. But it shows what the user is supposed to access (very useful when he did not (yet) find the appropriate docu or example)

In fact I rather easily did get it working.

(If someone involved in the project reads this thread: a small complaint: it does not seem to do a DNS resolving for the proxy: I needed to give the IP address instead of the name.)

-Michael

Code completion ?
There are lots of comments, so the IDE should give you hints.

In fact I rather easily did get it working.

QED :-)

Michael.

i've started with the testhttp.pas in the demos/fpc directory from the synapse release archive... then i have also pulled the vcs stuff to use... the demos are not included in the vcs...

FWIW: the testhttp works fine for the most part as simple as it is... one can also easily enable it for https connections with the openssl dlls by adding one unit to the uses clause... but synapse is apparently also only supported on winwhatever and linux... i'm aiming for the OS/2 target with help but there are still some problems and seemingly no support is forthcoming from the synapse folks on their list... at least, i've not seen any at all in regards to my and another's postings there :? one person did respond to my first post with a pointer to getting errorcodes... i thanked them there and will do so again here because they participate in both of these areas... so thanks, once again, ludo... it helped but we haven't gotten much further yet :?

there is a lpk file in the synapse vcs files, yes...

Thanks,

HTTP client works nicely right now (doing "GET").

Next on the to-try list is sending button-press, edit-field etc, but I suppose this is just a matter of setting up the appropriate URL string.

After this I will try to receive a Mail using the POP3 client.

Thanks for your comments,
-Michael

Michael Schnell wrote

Thanks, HTTP client works nicely right now (doing "GET").

yup and doing https is just as easy if the site supports https, that is...

Next on the to-try list is sending button-press, edit-field etc, but I suppose this is just a matter of setting up the appropriate URL string.

that and getting the method right... on some sites you can use GET with parameters in the URL but POST doesn't go that way... some sites will take either POST or GET for submitting data but others will only take POST...

After this I will try to receive a Mail using the POP3 client.

good luck! ;)

waldo kitty wrote

> After this I will try to receive a Mail using the POP3 client. good luck! ;)

Worked easily :-)

-Michael