BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Using TIdSMTP with SOCKS          BorlandTalk.com Forum Index -> Delphi Internet Winsock View previous topic :: View next topic   Author Message Joao Lira Guest Posted: Tue Apr 27, 2004 12:26 am    Post subject: Using TIdSMTP with SOCKS Hello, I couldn´t find any (practical) information on how to use the TIdSMTP component, for example, with SOCKS. Suppose I drop a TIdSMTP, a TIdIOHandlerSocket and a TIdSocksInfo components in a form. After the right assigns to the 'IOHandler' and 'SocksInfo' properties, respectively, how make the things work? I´m confused about what method should be used in a case like this. 'TIdSocksInfo.MakeSocksConnection', 'TIdSMTP.Connect', nothing seems to work after setting the properties (I have a SOCKS server locally to play with). In short: in a scenary like this what are the steps to be followed? Thanks for any help. Back to top Remy Lebeau (TeamB) Guest Posted: Tue Apr 27, 2004 12:31 am    Post subject: Re: Using TIdSMTP with SOCKS "Joao Lira" <joaolira (AT) mandic (DOT) com.br> wrote Quote: I´m confused about what method should be used in a case like this. You use TIdSMTP exactly as you normally would if you weren't enabling SOCKS at all. All of the SOCKS handling is done internally for you. Quote: TIdSocksInfo.MakeSocksConnection You never call that method yourself. It is called automatically during Connect(). Quote: TIdSMTP.Connect That is all you call yourself. Quote: nothing seems to work after setting the properties Did you set up the proerties correctly to begin with? Did you set the TIdSocksInfo's Host, Port, Version, Authentication, Username and Password properties? Gambit Back to top Joao Lira Guest Posted: Tue Apr 27, 2004 3:33 pm    Post subject: Re: Using TIdSMTP with SOCKS Hello Gambit, ">You use TIdSMTP exactly as you normally would if you weren't enabling SOCKS Quote: at all. All of the SOCKS handling is done internally for you. That´s amazing! Never thought it could be that simple! Quote: TIdSocksInfo.MakeSocksConnection You never call that method yourself. It is called automatically during Connect(). Thanks for this info. It was a not so clear point to me. Quote: Did you set up the proerties correctly to begin with? Did you set the TIdSocksInfo's Host, Port, Version, Authentication, Username and Password properties? Ok, I guess problems were happening because I was making the "MakeSocksConnection" call. Thank you for your support! Joao Lira. Back to top Joao Lira Guest Posted: Tue Apr 27, 2004 10:01 pm    Post subject: Re: Using TIdSMTP with SOCKS Hello, I´m still having trouble to get SOCKS working here. I´m using a TIdPOP3 to test that now. I set the 'TSocksInfo' properties (saNoAuthentication, localhost, 1080 and svSocks4). There is no username/password in my local SOCKS 4 server. I realized a strange behavior: looking at the SOCKS log I saw the SOCKS4 server is connecting using 127.0.0.1:110, but I´m connecting to a external POP3 server. I think the component is using the wrong address to call because I set my browser´s SOCKS field to point to the same local SOCKS server, and when it makes a connection the log entries for the HTTP are like 205.131.40.130:80, i.e., the external address to be accessed is passed to the SOCKS4 server instead the local (127.0.0.1) address, as it is been happening until now with my example, altough I´m setting the POP3 host correctly. Any idea about what could be happening here? Thanks for any help. Joao Lira. Back to top Remy Lebeau (TeamB) Guest Posted: Tue Apr 27, 2004 10:12 pm    Post subject: Re: Using TIdSMTP with SOCKS "Joao Lira" <joaolira (AT) mandic (DOT) com.br> wrote Quote: I´m still having trouble to get SOCKS working here. I´m using a TIdPOP3 to test that now. I set the 'TSocksInfo' properties (saNoAuthentication, localhost, 1080 and svSocks4). What are ALL of your property settings for the TIdPOP3, TIdIOHanlderSocket, and TIdSocksInfo? Quote: I think the component is using the wrong address to call TIdSocksInfo will pass to the SOCKS server whatever Host/Port you set in the TIdPOP3 itself. It does not change the values in any way. Quote: because I set my browser´s SOCKS field to point to the same local SOCKS server, and when it makes a connection the log entries for the HTTP are like 205.131.40.130:80, i.e., the external address to be accessed is passed to the SOCKS4 server instead the local (127.0.0.1) address, as it is been happening until now with my example, altough I´m setting the POP3 host correctly. Then I suggest you first double-check that all of your properties are actually correct. If they are, then get yourself a packet sniffer and see how the traffic between the browser and TIdPOP3 differs when connected to the SOCKS server. If that sill doesn't work, then please make a new project from scratch with minimal code that reproduces the same problem and then post the project to the borland.public.attachments group for someone to look at. Gambit Back to top Joao Lira Guest Posted: Wed Apr 28, 2004 11:47 am    Post subject: Re: Using TIdSMTP with SOCKS Hello, First, thank you for your assistance. Quote: What are ALL of your property settings for the TIdPOP3, TIdIOHanlderSocket, and TIdSocksInfo? TIdPOP3: APOP --> false ASCIIFilter --> false BoundIP --> <empty> BoundPort --> 0 (default) Host --> <POP3 host to get the messages> Intercept --> <empty> IOHandler --> <TIdIOHandlerSocket> (the only one) MaxLineAction--> maException MaxLineLength--> 16384 Password --> <the required password> Port --> 110 ReadTimeOut --> 0 RecvBufferSize-> 32768 SendBufferSize-> 32768 UserName --> <the required username> TIdIOHandlerSocket: SocksInfo --> <TIdSocksInfo> (the only one) UseNagle --> true TIdSocksInfo: Authentication-> saNoAuthentication Host --> localhost (Wingate at localhost) Password --> <empty> Port --> 1080 UserName --> <empty> Version --> svSocks4 If I clear the 'IOHandler' property of TIdPOP3, when I do TIdPOP3.Connect, everything work as expected. If I set that property to the TIdIOHandlerSocket component as above set, when I do 'TIdPOP3.Connect' I get an 'EIdClosedSocket' exception. Nothing was changed in the original code, except the 'IOHandler' assigning. I´m using Delphi 7 and Windows 2000 with administrative privilegies. Thanks for any more idea! Joao Lira. Back to top Joao Lira Guest Posted: Wed Apr 28, 2004 11:16 pm    Post subject: Re: Using TIdSMTP with SOCKS Hello, .... Quote: I get an 'EIdClosedSocket' exception. Nothing was changed in > the original code, except the 'IOHandler' assigning. If the 'TIdIOHandlerSocket' along with 'TIdSocksInfo' are able to make the SOCKS transactions transparent to the user when using a 'TIdTCPClient' component descendant, like 'TIdPOP3' what should still be 'open' to avoid the above exception? After many tries I can´t figure this out yet. Thanks for any light. Joao Lira. 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