BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  file transfur via http and wininet          BorlandTalk.com Forum Index -> C++ Builder (Native API) View previous topic :: View next topic   Author Message Mike Collins Guest Posted: Sun Jul 23, 2006 6:00 pm    Post subject: file transfur via http and wininet Hi all, major hair pulling. Trying to implement a live update facility and have major problems at every turn. Firstly I need to dynamic wininet.dll - which i've posted about previously. Secondly i need to file transfer via http rather than ftp. The update server is http not and ftp server. If i open an Internet connection, via InternetConnect with the flag INTERNET_SERVICE_HTTP, is it possible to use the ftp related wininet functions i.e. FtpSetCurrentDirectory etc or do i have to use the http related ones? If so, any pointers on this. I could really, really do with some helpful pointers on this. Many, many thanks in advance, Mike C Back to top Bob Gonder Guest Posted: Sun Jul 23, 2006 8:55 pm    Post subject: Re: file transfur via http and wininet Mike Collins wrote: Quote: Trying to implement a live update facility and have major problems at every turn. Secondly i need to file transfer via http rather than ftp. The update server is http not and ftp server. If i open an Internet connection, via InternetConnect with the flag INTERNET_SERVICE_HTTP, is it possible to use the ftp related wininet functions i.e. FtpSetCurrentDirectory etc or do i have to use the http related ones? If so, any pointers on this. Gambit is going to suggest using Indy 9 instead of rolling your own HTTP handler. See recent discussion in b.p.c.internet.socket group "IdFTP problem". There is an example in that thread of using relative pathing with Indy's HTTP. I would suppose hR = HttpOpenRequest( hConnect, "GET", "relative/path/update.exe", NULL,NULL, types,flags,0) Followed by a loop of do{ InternetReadFile( hR. Buffer, sizeof(Buffer), &dwNumberOfBytesRead ); WriteFile( hOut, Buffer, dwNumberOfBytesRead, &dwNumberOfBytesWritten, NULL ); }while( dwNumberOfBytesRead ); As a suggestion, you might also look into InternetOpenUrl() which claims to be directly useable by InternetReadFile and InternetFindNextFile() without needing the InternetConnect(). http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/internetopenurl.asp The http server is on your ISP? You can usually FTP to the server. That's how the stuff gets there in the first place. Just use the ftp address you use to upload the web pages/files. Such as in your case, likely static char ftp[]= "ftp.softwareassociates.com"; But, you would need to supply the name and password for access. The name and password gets you to your default directory. From there, I just download the relative path: FtpGetFile( hFTPSession, "changes.html", "changes.html", ...) char *from = "updates/update.exe"; char *to = "update.exe.dnld"; ff = FtpFindFirstFile( hFTPSession, from, &FindFrom, INTERNET_FLAG_RELOAD, NULL ); Then check the file date, and if newer: FtpGetFile( hFTPSession, from, to, ...) Back to top Mike Collins Guest Posted: Sun Jul 23, 2006 9:18 pm    Post subject: Re: file transfur via http and wininet Again Bob, thanks for the reply. It's sunday here so i posted before settling back for BBQ. However, on further reading (couldn't resist) i ended up at the same point as you suggested i.e. HttpOpenRequest with the GET command. Not going to test it till tomorrow but i think that will do the job. Also, InternetOpenUrl() looks promising. It was basically a lack in my understanding on how the wininet apis worked and how http operates. Now i look at it, it seems very foolish to think that the ftp functions would work with an http connection :) As for Indy, I'm trying to stay clear of any extra VCL's - it's a security product that I'm finalising and I'm getting super paranoid - i want to try and stay as close to the api's as possible - previous posts will give you a better idea. I've had issues with indy before and the group seems a little less active than the nativeapi so i thought i'd just stick to the wininet. It's a GINA product and i'm getting some wired result with certain things that should normally work but don't. The server is our own in telehouse - we use it for web hosting as well so the administrator is a bit anal. We've got an sftp service running but he didn't want to go down the route of setting an plain ftp server running - don't ask me why - these guys are always like that. Will keep "Bob Gonder" <notbg (AT) notmindspring (DOT) invalid> wrote in message news:he07c2hikkr27pbml0ioamg8s0lojmfo7e (AT) 4ax (DOT) com... Quote: Mike Collins wrote: Trying to implement a live update facility and have major problems at every turn. Secondly i need to file transfer via http rather than ftp. The update server is http not and ftp server. If i open an Internet connection, via InternetConnect with the flag INTERNET_SERVICE_HTTP, is it possible to use the ftp related wininet functions i.e. FtpSetCurrentDirectory etc or do i have to use the http related ones? If so, any pointers on this. Gambit is going to suggest using Indy 9 instead of rolling your own HTTP handler. See recent discussion in b.p.c.internet.socket group "IdFTP problem". There is an example in that thread of using relative pathing with Indy's HTTP. I would suppose hR = HttpOpenRequest( hConnect, "GET", "relative/path/update.exe", NULL,NULL, types,flags,0) Followed by a loop of do{ InternetReadFile( hR. Buffer, sizeof(Buffer), &dwNumberOfBytesRead ); WriteFile( hOut, Buffer, dwNumberOfBytesRead, &dwNumberOfBytesWritten, NULL ); }while( dwNumberOfBytesRead ); As a suggestion, you might also look into InternetOpenUrl() which claims to be directly useable by InternetReadFile and InternetFindNextFile() without needing the InternetConnect(). http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wininet/wininet/internetopenurl.asp The http server is on your ISP? You can usually FTP to the server. That's how the stuff gets there in the first place. Just use the ftp address you use to upload the web pages/files. Such as in your case, likely static char ftp[]= "ftp.softwareassociates.com"; But, you would need to supply the name and password for access. The name and password gets you to your default directory. From there, I just download the relative path: FtpGetFile( hFTPSession, "changes.html", "changes.html", ...) char *from = "updates/update.exe"; char *to = "update.exe.dnld"; ff = FtpFindFirstFile( hFTPSession, from, &FindFrom, INTERNET_FLAG_RELOAD, NULL ); Then check the file date, and if newer: FtpGetFile( hFTPSession, from, to, ...) Back to top Remy Lebeau (TeamB) Guest Posted: Mon Jul 24, 2006 12:09 am    Post subject: Re: file transfur via http and wininet "Mike Collins" <its (AT) TheBottomOfThePost (DOT) com> wrote in message news:44c3730e$1 (AT) newsgroups (DOT) borland.com... Quote: If i open an Internet connection, via InternetConnect with the flag INTERNET_SERVICE_HTTP, is it possible to use the ftp related wininet functions No. You must use the HTTP functions with that handle. Quote: or do i have to use the http related ones? Yes. Gambit Back to top Remy Lebeau (TeamB) Guest Posted: Mon Jul 24, 2006 12:11 am    Post subject: Re: file transfur via http and wininet "Bob Gonder" <notbg (AT) notmindspring (DOT) invalid> wrote in message news:he07c2hikkr27pbml0ioamg8s0lojmfo7e (AT) 4ax (DOT) com... Quote: Gambit is going to suggest using Indy 9 instead of rolling your own HTTP handler. Not necessarily. I have nothing against WinInet. Since he's already writing code for WinInet, there is no reason to abandon it. Gambit Back to top Mike Collins Guest Posted: Mon Jul 24, 2006 3:04 am    Post subject: Re: file transfur via http and wininet :-) "Remy Lebeau (TeamB)" <no.spam (AT) no (DOT) spam.com> wrote in message news:44c3ca4b$1 (AT) newsgroups (DOT) borland.com... > Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> C++ Builder (Native API) 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.