Cteni vzdaleneho souboru... – C / C++ – Fórum – Programujte.com

hoj.. zajima me.. jde nejak pomoci stejny funkce jakou pouzivam tady (zobrazena niz) precist TXT soubor z HTTP?
chci aby to precetlo treba z http://global.avp2.org/banlist.txt ale nikde jsem na to zadnou funkci nenasel :(
(to hht je samozrejme na JINYM serveru nez je bezici server, proste po pusteni exe aplikace si to nacte tenhle soubor primo z toho compu kde to bezi + si to nacte soubor z webu..

	//load our blacklists

	fh = fopen("IPBANLIST.txt", "rt");

	if(fh)

	{

		while (fgets(szBuffer, 256, fh) != NULL)

		{

			if(szBuffer[0]!='*')

			{

				if(strlen(szBuffer)>5)

				{

					if(strstr(szBuffer,"-"))

						GlobalBL[BLCount].BanType=RANGEIP;

					else

						GlobalBL[BLCount].BanType=SINGLEIP;



					pszStart=szBuffer;

					for(int i=0;i<3;i++)

					{

						pszEnd=strstr(pszStart,".");

						*pszEnd='\0';

						GlobalBL[BLCount].BlockLower[i]=atoi(pszStart);

						pszStart=pszEnd+1;

					}



					if(GlobalBL[BLCount].BanType==SINGLEIP)

					{

						GlobalBL[BLCount].BlockLower[3]=atoi(pszStart);

					}

					else

					{

						pszEnd=strstr(pszStart,"-");

						*pszEnd='\0';

						GlobalBL[BLCount].BlockLower[3]=atoi(pszStart);

						pszStart=pszEnd+1;

						for(i=0;i<3;i++)

						{

							pszEnd=strstr(pszStart,".");

							*pszEnd='\0';

							GlobalBL[BLCount].BlockUpper[i]=atoi(pszStart);

							pszStart=pszEnd+1;

						}

						GlobalBL[BLCount].BlockUpper[3]=atoi(pszStart);

					}

					BLCount++;

				}

			}

		}

		fclose(fh);

	}

Zdravim,
co takhle použít funkce z rodiny Internet...?
Jinak jak se podařil hash exe a dll? Funguje to nebo jsou s tim pořád nějaké problémy?

To Ivo: nedávno jsem potřeboval zjistit, jestli existuje soubor na serveru. f-ce file_get_content vrací html souboru, takže by to mělo vrátit i txt. více v manuálu

To survik1:
Z jaké knihovny to je, pořp. jaký hlav. soubor musím includovat? Protože já našel akorát něco k PHP...

http://cz.php.net/manual/cs/function.file-get-contents.php

To survik1:

Njn, tak to mu bude nejspíše na prd. Tohle je sekce C/C++ ne PHP;)

To Jura: aha :) To jsem si nevšiml :)
Jak jsem videl odkaz http:// dal už jsem se nedíval :)

Jura:
no na tom hshi teprv delam, je to name dost slozity sem v tom lama, ale vic me ted zajima to cteni vzdalenyho souboru.. je to exe aplikace, kdyby treba slo udelat aby si to ten txt stahlo do slozky a z ni to pak cetlo?

vlastne se to cte pri inicializaci programu.. tak by se tam dalo nejaky sleep nez si ten program stahne ten soubor do svoji slozky a pak by to pokracovalo normalne dal..

jenze nevim jak ten soubor natahnout :'(

To IVO: poradim ti na to genialnu kniznicu. CURL lib.. je portovana aj na windows takze nieje problem a pouzitie je fakt easy.. Okrem toho mozes pouzit ako HTTP FTP tak aj cez Sec. Layer ala HTTPS FTPS.. ;)

Tu mas pekny priklad toho ako si napisat fopen fread atd.. aby to makalo z URLkou. http://curl.haxx.se/lxr/source/docs/examples/fopen.c

good luck ;)

To Ivo:
Tak pro co ses rozhodl(CURL, nebo InternetOpen, InternetOpenUrl, InternetReadFile) a jak jsi uspěl?

zatim nijak.. vubec tomuhle nerozumim, to uz je name moc moc pokrocile.. kamarad mi poslal funkci co to dokaze.. ale ona to je je na ty adrese jen vypise, musim to predelat aby to ulozila do txt.

Ivo píše:#
# zatim nijak.. vubec tomuhle nerozumim, to uz je name moc moc pokrocile.. kamarad mi poslal funkci co to dokaze.. ale ona to je je na ty adrese jen vypise, musim to predelat aby to ulozila do txt.

To Jura:
No tak prome to bohuzel problem je :) pascal vubec neznam, takze prakticky nejsem schopnej si funkci napsanou pro pascal "prepsat" pro VS6

Netestoval jsem to. Snad tam není moc chyb.

BOOL DownloadFile(LPCTSTR lpUrl, LPCTSTR lpDestFileName, LPCTSTR lpAppName = TEXT("My App"))

{  HINTERNET hInet = INVALID_HANDLE_VALUE;

    HINTERNET hFile   =  INVALID_HANDLE_VALUE;  

    HANDLE  hLocalFile = INVALID_HANDLE_VALUE; 

    int nError = ERROR_SUCCESS;

    if( nError  == ERROR_SUCCESS )

    {  hInet = InternetOpen(lpAppName,INTERNET_OPEN_TYPE_PRECONFIG,0,0,0);

       if( hInet == INVALID_HANDLE_VALUE ) nError = GetLastError();

    }

    

    if( nError == ERROR_SUCCESS )

    { hFile = InternetOpenURL(hInet,lpUrl,0,0,0,0);

       if(hFile == INVALID_HANDLE_VALUE) nError = GetLastError();

    }  

    

    if( nError == ERROR_SUCCESS )

    {  hLocalFile = CreateFile(lpFileName, GENERIC_WRITE, 0,

                                 0, CREATE_ALWAYS, 0, 0);

        if( hLocalFile== INVALID_HANDLE_VALUE )

            nError = GetLastError();

    }

   

    if( nError == ERORR_SUCCESS )

    {   DWORD dwBytesRead = 0;

         BYTE buffer[1024];

         while( dwBytesRead = InternetReadFile(hFile,buffer, sizeof(buffer), &dwBytesRead) )

            WriteFile(hLocalFile, buffer, dwBytesRead, &dwBytesRead, 0);

    }

     

     

    if( hLocalFile )

       CloseHandle(hLocalFile);

    if( hFile != INVALID_HANDLE_VALUE )

       InternetCloseHandle(hFile);

    if( hInet != INVALID_HANDLE_VALUE )

       InternetCloseHandle(hInet);

   return (BOOL) nError == ERROR_SUCCESS;

}

LOL:


ompiling...
ServerApp.cpp
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2065: 'HINTERNET' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2146: syntax error : missing ';' before identifier 'hInet'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2065: 'hInet' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2440: '=' : cannot convert from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(22) : error C2146: syntax error : missing ';' before identifier 'hFile'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(22) : error C2065: 'hFile' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(22) : error C2440: '=' : cannot convert from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(26) : error C2065: 'InternetOpen' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(26) : error C2065: 'INTERNET_OPEN_TYPE_PRECONFIG' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(27) : error C2446: '==' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(27) : error C2040: '==' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(31) : error C2065: 'InternetOpenURL' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(32) : error C2446: '==' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(32) : error C2040: '==' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(36) : error C2065: 'lpFileName' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(42) : error C2065: 'ERORR_SUCCESS' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(45) : error C2065: 'InternetReadFile' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(52) : error C2446: '!=' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(52) : error C2040: '!=' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(53) : error C2065: 'InternetCloseHandle' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(54) : error C2446: '!=' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(54) : error C2040: '!=' : 'int' differs in levels of indirection from 'void *'
ServerDlg.cpp
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2065: 'HINTERNET' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2146: syntax error : missing ';' before identifier 'hInet'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2065: 'hInet' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(21) : error C2440: '=' : cannot convert from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(22) : error C2146: syntax error : missing ';' before identifier 'hFile'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(22) : error C2065: 'hFile' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(22) : error C2440: '=' : cannot convert from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(26) : error C2065: 'InternetOpen' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(26) : error C2065: 'INTERNET_OPEN_TYPE_PRECONFIG' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(27) : error C2446: '==' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(27) : error C2040: '==' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(31) : error C2065: 'InternetOpenURL' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(32) : error C2446: '==' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(32) : error C2040: '==' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(36) : error C2065: 'lpFileName' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(42) : error C2065: 'ERORR_SUCCESS' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(45) : error C2065: 'InternetReadFile' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(52) : error C2446: '!=' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(52) : error C2040: '!=' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.h(53) : error C2065: 'InternetCloseHandle' : undeclared identifier
C:\proj\AVP2\AVP2Serv\ServerDlg.h(54) : error C2446: '!=' : no conversion from 'void *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\proj\AVP2\AVP2Serv\ServerDlg.h(54) : error C2040: '!=' : 'int' differs in levels of indirection from 'void *'
C:\proj\AVP2\AVP2Serv\ServerDlg.cpp(162) : error C2275: 'LPCTSTR' : illegal use of this type as an expression
C:\Program Files\Microsoft Visual Studio\VC98\INCLUDE\winnt.h(196) : see declaration of 'LPCTSTR'
C:\proj\AVP2\AVP2Serv\ServerDlg.cpp(162) : error C2146: syntax error : missing ')' before identifier 'global'
C:\proj\AVP2\AVP2Serv\ServerDlg.cpp(162) : error C2059: syntax error : ')'
Generating Code...
Error executing cl.exe.

RommieAvP2Serv.exe - 47 error(s), 0 warning(s)




jenom malinko :D

To ivo:
Nutíš mě spouštět IDE.

#include <windows.h>

#include <wininet.h>

#include <tchar.h>



#ifdef _MSC_VER

 #pragma comment(lib, "wininet.lib")

#endif



BOOL DownloadFile(LPCTSTR lpUrl, LPCTSTR lpFileName, LPCTSTR lpAppName = TEXT("My App"))

{  HINTERNET hInet = INVALID_HANDLE_VALUE;

    HINTERNET hFile   =  INVALID_HANDLE_VALUE;

    HANDLE  hLocalFile = INVALID_HANDLE_VALUE;

    int nError = ERROR_SUCCESS;

    if( nError  == ERROR_SUCCESS )

    {  hInet = InternetOpen(lpAppName,INTERNET_OPEN_TYPE_PRECONFIG,0,0,0);

       if( hInet == INVALID_HANDLE_VALUE ) nError = GetLastError();

    }



    if( nError == ERROR_SUCCESS )

    { hFile = InternetOpenUrl(hInet,lpUrl,0,0,0,0);

       if(hFile == INVALID_HANDLE_VALUE) nError = GetLastError();

    }



    if( nError == ERROR_SUCCESS )

    {  hLocalFile = CreateFile(lpFileName, GENERIC_WRITE, 0,

                                 0, CREATE_ALWAYS, 0, 0);

        if( hLocalFile== INVALID_HANDLE_VALUE )

            nError = GetLastError();

    }



    if( nError == ERROR_SUCCESS )

    {   DWORD dwBytesRead = 0;

         BYTE buffer[1024];

         while( dwBytesRead = InternetReadFile(hFile,buffer, sizeof(buffer), &dwBytesRead) )

            WriteFile(hLocalFile, buffer, dwBytesRead, &dwBytesRead, 0);

    }



    if( hLocalFile )

       CloseHandle(hLocalFile);

    if( hFile != INVALID_HANDLE_VALUE )

       InternetCloseHandle(hFile);

    if( hInet != INVALID_HANDLE_VALUE )

       InternetCloseHandle(hInet);

   return (BOOL) nError == ERROR_SUCCESS;

}

kompilace : OK
pusteni porgramu: OK

ALE nic se nestahlo a soubor se nevytvoril.

Oprava nbeco se stalo :D na C:\ mi to udelalo soubor GLOBALBANLIST.txt o 40MB plnej jenom


************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************
************************************************************************************************************

Tak to neporadím, sry.Zkus ten CURL, co psal sn3d. Je tam příklad tak, snad bude fungovat.

Nacte to z toho vzdalenyho asouboru jenom prvni symbol.. a ten to nacina do nekonecna.. kdyz jsem tam dal textak vekterym bylo treba



Ahoj




tak mi to udelalo 50 mb soubor se samim

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
... :(

Aha, no tak bude spatne ten cyklus, to je zase ta pascalovska logika. Kdyztak se to pokus opravit. Popis k funkci InternetReadFile najdeš na msdn. ale melo by to vypadat,a si nejak takto:
do{
InternetReadFile(..)
WriteFile(...)
}while(dwBytesRead);
Ale je pozde, tak za nic nerucim..

Nakonec pomohl pritel na DC++:

//GLOBALBAN//

#include <windows.h>

#include <wininet.h>

#include <tchar.h>



#ifdef _MSC_VER

 #pragma comment(lib, "wininet.lib")

#endif



BOOL DownloadFile(LPCTSTR lpUrl, LPCTSTR lpFileName, LPCTSTR lpAppName = TEXT("My App"))

{  HINTERNET hInet = INVALID_HANDLE_VALUE;

    HINTERNET hFile   =  INVALID_HANDLE_VALUE;

    HANDLE  hLocalFile = INVALID_HANDLE_VALUE;

    int nError = ERROR_SUCCESS;

    if( nError  == ERROR_SUCCESS )

    {  hInet = InternetOpen(lpAppName,INTERNET_OPEN_TYPE_PRECONFIG,0,0,0);

       if( hInet == INVALID_HANDLE_VALUE ) nError = GetLastError();

    }



    if( nError == ERROR_SUCCESS )

    { hFile = InternetOpenUrl(hInet,lpUrl,0,0,0,0);

       if(hFile == INVALID_HANDLE_VALUE) nError = GetLastError();

    }



    if( nError == ERROR_SUCCESS )

    {  hLocalFile = CreateFile(lpFileName, GENERIC_WRITE, 0,

                                 0, CREATE_ALWAYS, 0, 0);

        if( hLocalFile== INVALID_HANDLE_VALUE )

            nError = GetLastError();

    }



    if( nError == ERROR_SUCCESS )

    {   DWORD dwBytesRead = 0;

         BYTE buffer[1024];

         while( InternetReadFile(hFile,buffer, sizeof(buffer), &dwBytesRead)==true && dwBytesRead != 0 )

            WriteFile(hLocalFile, buffer, dwBytesRead, &dwBytesRead, 0);

    }





    if( hLocalFile )

       CloseHandle(hLocalFile);

    if( hFile != INVALID_HANDLE_VALUE )

       InternetCloseHandle(hFile);

    if( hInet != INVALID_HANDLE_VALUE )

       InternetCloseHandle(hInet);

   return (BOOL) nError == ERROR_SUCCESS;

}

//GLOBALBAN//

To Ivo:
Njn, asi z nás jako jediný umí číst msdn:D :
...To ensure all data is retrieved, an application must continue to call the InternetReadFile function until the function returns TRUE and the lpdwNumberOfBytesRead parameter equals zero...

:D :D vypada to tak :D :D

takze ted se s chuti , no spis s nechuti, muzzu venovat pokusum do modu pridat tcp/ip abych mohl zjistopvat IP klientu.

:)