BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  POP3Proxy using Indy TIdMappedPOP3          BorlandTalk.com Forum Index -> Delphi Internet Winsock View previous topic :: View next topic   Author Message marshmathers Guest Posted: Sun Nov 28, 2004 3:51 pm    Post subject: POP3Proxy using Indy TIdMappedPOP3  HI, I am trying to create a POP3 Proxy server using Indy 9 TIdMappedPOP3. First I want to get the mail server from pop3 client. Secondly I want to capture the data from server; only Messages (header, body etc.); not those server replies(+OK etc.). I used to get "Host is empty" error. I fixed it by specifying VHost := servername in the Outbound Connect event. But I want to get that servername from the client itself. At present I am specifying it manually. So how can I accomplish these two tasks of servername and messages in TIdMessage format from OnboundData event. Please help me......... Thanx in advance. --- posted by geoForum on http://delphi.newswhat.com Back to top Thomas Wegner Guest Posted: Sun Nov 28, 2004 5:43 pm    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 Look in the TIdHTTPProxyServer from Indy10. --------------------------------------------- Thomas Wegner Cabrio Meter - The Weather Plugin for Trillian http://www.wegner24.de "marshmathers" <mmathers (AT) 37 (DOT) com> schrieb im Newsbeitrag news:41aa01b1 (AT) newsgroups (DOT) borland.com... Quote: HI, I am trying to create a POP3 Proxy server using Indy 9 TIdMappedPOP3. First I want to get the mail server from pop3 client. Secondly I want to capture the data from server; only Messages (header, body etc.); not those server replies(+OK etc.). I used to get "Host is empty" error. I fixed it by specifying VHost := servername in the Outbound Connect event. But I want to get that servername from the client itself. At present I am specifying it manually. So how can I accomplish these two tasks of servername and messages in TIdMessage format from OnboundData event. Please help me......... Thanx in advance. --- posted by geoForum on http://delphi.newswhat.com Back to top Remy Lebeau (TeamB) Guest Posted: Sun Nov 28, 2004 11:48 pm    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 "marshmathers" <mmathers (AT) 37 (DOT) com> wrote Quote: First I want to get the mail server from pop3 client. TIdMappedPOP3 already handles that automatically for you. You need to configure your POP3 client to connect through a proxy. You cannot configure your client to treat the TIdMappedPOP3 as the server because the client needs to send extra data that tells the TIdMappedPOP3 where the actual server is located. If your client does not directly support proxies, then you can try specifying the server hostname in your POP3 username, ie: myusername#theserverhostname Quote: Secondly I want to capture the data from server; only Messages (header, body etc.); not those server replies(+OK etc.). The replies are required. Quote: I used to get "Host is empty" error. Your POP3 client is not configured to connect via a proxy. Quote: I fixed it by specifying VHost := servername in the Outbound Connect event. I assume you actually mean the OnCheckHostPort event, not the OnOutboundConnect event. Quote: But I want to get that servername from the client itself. Then you need to configure the client properly to begin with. Quote: So how can I accomplish these two tasks of servername and messages in TIdMessage format from OnboundData event. You cannot get the data in TIdMessage format with TIdMappedPOP3 automatically. It is not designed for that. It is just a straight client <-> server proxy, passing raw data between them. Nothing else. No message parsing at all. If you need TIdMessage support than you have to provide your own support for it by using the OnOutboundData to parse the received POP3 data manually before it is sent to the client. Since the data is received in its raw format, it will probably take several OnOutboundData event triggerings for you to process the data properly. Gambit Back to top Remy Lebeau (TeamB) Guest Posted: Sun Nov 28, 2004 11:49 pm    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 "Thomas Wegner" <tomaten (AT) t-online (DOT) de> wrote Quote: Look in the TIdHTTPProxyServer from Indy10. He is using Indy 9, not Indy 10. Besides, what does that demo have to with POP3 proxying? Gambit Back to top marshmathers Guest Posted: Mon Nov 29, 2004 3:36 am    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 ThanX Remy. Thanx a lot. My real intenstion was to create something like what Norton Antivirus do. It scans every email to and from the computer for virus. But it does not require any client configs (like username#servername), a knd of hand free approach. Can we accomplish similar tasks with Indy 9? Secondly can you offer me some help with regard to parsing raw data to TIdMessage format? My real intention is to create somthing like Norton Email scanning using ClamAV database. --- posted by geoForum on http://delphi.newswhat.com Back to top Remy Lebeau (TeamB) Guest Posted: Mon Nov 29, 2004 7:07 am    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 "marshmathers" <mmathers (AT) 37 (DOT) com> wrote Quote: My real intenstion was to create something like what Norton Antivirus do. It scans every email to and from the computer for virus. But it does not require any client configs (like username#servername), a knd of hand free approach. Then you cannot use TIdMappedPOP3 for that at all. TIdMappedPOP3 requires that the client be specifically configured to connect to it instead of the actual SMTP server. What you are asking for now is to allow the client to connect to the actual server directly and you intercept all data that is transmitted on that connection. That kind of handling is beyond Indy's capabilities. You have to write an NDIS driver that hooks the WinSock stack directly instead. Indy has no provisions for that, nor is it designed for that type of programming. Quote: Secondly can you offer me some help with regard to parsing raw data to TIdMessage format? Why do you need to use TIdMessage at all? Why not just scan the raw data as-is? If you must parse it, then you will have to buffer everything that is transmitted, and then parse the POP3 commands as per the RFCs. When you receive a DATA command, you can save that raw data to a stream, such as a TMemoryStream, and then use TIdMessage's LoadFromStream() method. Quote: My real intention is to create somthing like Norton Email scanning using ClamAV database. I do not know what either of those are like. Gambit Back to top marshmathers Guest Posted: Mon Nov 29, 2004 8:09 am    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 Thanx for your clues on NDIS driver and idea to parse raw data after DATA command. I'll try....... --- posted by geoForum on http://delphi.newswhat.com Back to top Remy Lebeau (TeamB) Guest Posted: Mon Nov 29, 2004 9:17 pm    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 "Remy Lebeau (TeamB)" <no.spam (AT) no (DOT) spam.com> wrote Quote: You have to write an NDIS driver that hooks the WinSock stack directly instead. Indy has no provisions for that, nor is it designed for that type of programming. Have a look at WinPCap(http://winpcap.polito.it) if you do not want to write a new driver from scratch. Gambit Back to top marshmathers Guest Posted: Tue Nov 30, 2004 4:56 pm    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 Remy, I already have a copy of it. Btut can we sniff packets using a WAN adapter in WinPcap. I also heard about some kind of firewall issues. Any way now iam thinking of working in Indy way. :-) Quote: Have a look at WinPCap(http://winpcap.polito.it) if you do not want to write a new driver from scratch. --- posted by geoForum on http://delphi.newswhat.com Back to top Gavin Watkinson Guest Posted: Wed Dec 01, 2004 11:12 am    Post subject: Re: POP3Proxy using Indy TIdMappedPOP3 WinPCap is a protocal driver only, you will be able to see all the packets but you wont be able to change them, WinPcap takes a copy of the packet transmitted and gives it to you to look at. Good for packet sniffing but no good if you want to change any data Gavin Quote: Remy, I already have a copy of it. Btut can we sniff packets using a WAN adapter in WinPcap. I also heard about some kind of firewall issues. Any way now iam thinking of working in Indy way. :-) Have a look at WinPCap(http://winpcap.polito.it) if you do not want to write a new driver from scratch. --- posted by geoForum on http://delphi.newswhat.com Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Internet Winsock All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.