BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  News Client          BorlandTalk.com Forum Index -> Delphi Internet Winsock View previous topic :: View next topic   Author Message Anton Izrailtyanko Guest Posted: Wed Nov 12, 2003 8:13 am    Post subject: News Client Hello, All! Please help. I'm new to Indy, what components should I use of it to create a news (and maybe later post) client. Best of all - links on docs and examples. Thanks. With best regards, Anton Izrailtyanko. E-mail: [email]stalker780 (AT) yandex (DOT) ru[/email] Back to top Remy Lebeau (TeamB) Guest Posted: Wed Nov 12, 2003 8:38 am    Post subject: Re: News Client "Anton Izrailtyanko" <stalker780 (AT) yandex (DOT) ru> wrote Quote: I'm new to Indy, what components should I use of it to create a news (and maybe later post) client. NNTP is the news protocol, so TIdNTTP is the news client component. It supports both downloading and posting messages. Gambit Back to top Anton Izrailtyanko Guest Posted: Wed Nov 12, 2003 12:59 pm    Post subject: Re: News Client Hello, Remy! You wrote on Wed, 12 Nov 2003 00:38:14 -0800: RLT> NNTP is the news protocol, so TIdNTTP is the news client component. RLT> It supports both downloading and posting messages. 1. I set Host property to newsgroups.borland.com 2. Username and Password are left empty, Port is 119. 3. Connection is successful. 4. Where I must set the newsgroup name to borland.public.delphi.internet.winsock? 5. And how can I check if there are any messages in newsgroup? Count them? Receive their IDs? and finaly receive their headers and bodies? I didn't find|understand anything in help. With best regards, Anton Izrailtyanko. E-mail: [email]stalker780 (AT) yandex (DOT) ru[/email] Back to top Anton Izrailtyanko Guest Posted: Wed Nov 12, 2003 2:10 pm    Post subject: Re: News Client Hello, Remy! You wrote on Wed, 12 Nov 2003 00:38:14 -0800: RLT> NNTP is the news protocol, so TIdNTTP is the news client component. RLT> It supports both downloading and posting messages. 1. I set Host property to newsgroups.borland.com 2. Username and Password are left empty, Port is 119. 3. Connection is successful. 4. I call GetNewNewsList('borland.public.delphi.internet.winsock', (Now - 3), True, ''); 5. OnNewNewsList contains only ShowMessage(AMsgID); I want to get news for last 3 days. But OnNewNewsList doesn't occur. Why? With best regards, Anton Izrailtyanko. E-mail: [email]stalker780 (AT) yandex (DOT) ru[/email] Back to top Remy Lebeau (TeamB) Guest Posted: Wed Nov 12, 2003 7:08 pm    Post subject: Re: News Client "Anton Izrailtyanko" <stalker780 (AT) yandex (DOT) ru> wrote Quote: 4. I call GetNewNewsList('borland.public.delphi.internet.winsock', (Now - 3), True, ''); It is *strongly* advised that you do not use GetNewNewsList(). Internally, it uses the NEWNEWS command which is very outdated and very slow to execute on servers. The better approach is to keep track of the last MsgId that you download each time, and then when you reconnect later, use the MsgHigh and MsgLow properties (which are set when you call SelectGroup()) to help you determine the necessary range string to pass to the XOVER() method. Then use ParseXOver() to extract the message details for the downloaded list. This is much faster than using GetNewNewsList(), and much more supported on modern servers. Quote: But OnNewNewsList doesn't occur. Why? The only way that can occur is if the NEWNEWS command returned an empty list. Gambit Back to top Captain Jake Guest Posted: Wed Nov 12, 2003 10:19 pm    Post subject: Re: News Client "Remy Lebeau (TeamB)" <gambit47.no.spam (AT) no (DOT) spam.yahoo.com> wrote Quote: The better approach is to keep track of the last MsgId that you download each time, and then when you reconnect later, use the MsgHigh and MsgLow properties (which are set when you call SelectGroup()) to help you determine the necessary range string to pass to the XOVER() method. Then use ParseXOver() to extract the message details for the downloaded list. This is much faster than using GetNewNewsList(), and much more supported on modern servers. Indeed. That is exactly how I do it in my newsreader and it seems to work fine. Back to top Remy Lebeau (TeamB) Guest Posted: Wed Nov 12, 2003 10:48 pm    Post subject: Re: News Client "Captain Jake" <johnjac76[nospam]@comcast.net> wrote Quote: Indeed. That is exactly how I do it in my newsreader and it seems to work fine. That's how a lot of the current newsreaders do it nowadays. Gambit Back to top Simon Devlin Guest Posted: Sat Nov 15, 2003 10:05 pm    Post subject: Re: News Client Probably the best example around is Colin Wilson's Xananews (http://www.wilsonc.demon.co.uk) You'll have to get a bunch of other stuff (all freely available) to compile it, but it has a bunch of nice features and is great learning tool. You can get some basic NNTP demo from http://www.indyproject.org/indy/demodownloads/I9D6_Demos_24Nov02.zip Regards "Anton Izrailtyanko" <stalker780 (AT) yandex (DOT) ru> wrote Quote: Hello, All! Please help. I'm new to Indy, what components should I use of it to create a news (and maybe later post) client. Best of all - links on docs and examples. Thanks. With best regards, Anton Izrailtyanko. E-mail: [email]stalker780 (AT) yandex (DOT) ru[/email] Back to top Anton Izrailtyanko Guest Posted: Mon Nov 17, 2003 8:56 am    Post subject: Re: News Client Hello, Simon! You wrote on Sat, 15 Nov 2003 22:05:43 -0000: Quote: Probably the best example around is Colin Wilson's Xananews (http://www.wilsonc.demon.co.uk) Thanks a lot! That's what I needed, working examples. Quote: You'll have to get a bunch of other stuff (all freely available) to compile it, but it has a bunch of nice features and is great learning tool. You can get some basic NNTP demo from http://www.indyproject.org/indy/demodownloads/I9D6_Demos_24Nov02.zip I already have them, I didn't find useful demos of NNTP there. With best regards, Anton Izrailtyanko. 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