Access Variables from URL

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Hello,
Right now, i use variables load from a file as parameter for several EA to comunicate. So far it works. Now i use the EA's on VPS.. i want to know if there's any method for EA's to access variables through website..

for example reading variable on http://www.testing.com/testVar.txt

it would be more easier for me to create and access the parameter...! hope it's possible...
 

404 Error:
Missing Document
The server could not locate the document you requested.

 
you may use wininet.dll to download files from website to local file and then read i from EA
 
do you have any reference using wininet.dll ?
 

this code is from forexfactory calendar indicator:

// Main Webscraping function
// ~~~~~~~~~~~~~~~~~~~~~~~~~
// bool GrabWeb(string strUrl, string& strWebPage)
// returns the text of any webpage. Returns false on timeout or other error
// 
// Parsing functions
// ~~~~~~~~~~~~~~~~~
// string GetData(string strWebPage, int nStart, string strLeftTag, string strRightTag, int& nPos)
// obtains the text between two tags found after nStart, and sets nPos to the end of the second tag
//
// void Goto(string strWebPage, int nStart, string strTag, int& nPos)
// Sets nPos to the end of the first tag found after nStart 
 
bool bWinInetDebug = false;
 
int hSession_IEType;
int hSession_Direct;
int Internet_Open_Type_Preconfig = 0;
int Internet_Open_Type_Direct = 1;
int Internet_Open_Type_Proxy = 3;
int Buffer_LEN = 13;
 
#import "wininet.dll"
 
#define INTERNET_FLAG_PRAGMA_NOCACHE    0x00000100 // Forces the request to be resolved by the origin server, even if a cached copy exists on the proxy.
#define INTERNET_FLAG_NO_CACHE_WRITE    0x04000000 // Does not add the returned entity to the cache. 
#define INTERNET_FLAG_RELOAD            0x80000000 // Forces a download of the requested file, object, or directory listing from the origin server, not from the cache.
 
int InternetOpenA(
    string     sAgent,
    int        lAccessType,
    string     sProxyName="",
    string     sProxyBypass="",
    int     lFlags=0
);
 
int InternetOpenUrlA(
    int     hInternetSession,
    string     sUrl, 
    string     sHeaders="",
    int     lHeadersLength=0,
    int     lFlags=0,
    int     lContext=0 
);
 
int InternetReadFile(
    int     hFile,
    string     sBuffer,
    int     lNumBytesToRead,
    int&     lNumberOfBytesRead[]
);
 
int InternetCloseHandle(
    int     hInet
);
#import
 
 
int hSession(bool Direct)
{
    string InternetAgent;
    if (hSession_IEType == 0)
    {
        InternetAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; Q312461)";
        hSession_IEType = InternetOpenA(InternetAgent, Internet_Open_Type_Preconfig, "0", "0", 0);
        hSession_Direct = InternetOpenA(InternetAgent, Internet_Open_Type_Direct, "0", "0", 0);
    }
    if (Direct) 
    { 
        return(hSession_Direct); 
    }
    else 
    {
        return(hSession_IEType); 
    }
}
 
 
bool GrabWeb(string strUrl, string& strWebPage)
{
    int     hInternet;
    int        iResult;
    int     lReturn[]={1};
    string     sBuffer="x";
    int     bytes;
    
    hInternet = InternetOpenUrlA(hSession(FALSE), strUrl, "0", 0, 
                                INTERNET_FLAG_NO_CACHE_WRITE | 
                                INTERNET_FLAG_PRAGMA_NOCACHE | 
                                INTERNET_FLAG_RELOAD, 0);
                                
    if (bWinInetDebug) 
        Log("hInternet: " + hInternet);   
    if (hInternet == 0) 
        return(false);
        
    iResult = InternetReadFile(hInternet, sBuffer, Buffer_LEN, lReturn);
    
    if (bWinInetDebug) 
        Log("iResult: " + iResult);
    if (bWinInetDebug) 
        Log("lReturn: " + lReturn[0]);
    if (bWinInetDebug) 
        Log("iResult: " + iResult);
    if (bWinInetDebug) 
        Log("sBuffer: " +  sBuffer);
    if (iResult == 0) 
        return(false);
    bytes = lReturn[0];
 
    strWebPage = StringSubstr(sBuffer, 0, lReturn[0]);
    
    // If there's more data then keep reading it into the buffer
    while (lReturn[0] != 0)
    {
        iResult = InternetReadFile(hInternet, sBuffer, Buffer_LEN, lReturn);
        if (lReturn[0]==0) 
            break;
        bytes = bytes + lReturn[0];
        strWebPage = strWebPage + StringSubstr(sBuffer, 0, lReturn[0]);
    }
 
    iResult = InternetCloseHandle(hInternet);
    if (iResult == 0) 
        return(false);
    if (bWinInetDebug) 
    {     
        Log("iResult: " + iResult);
        int handle = FileOpen("Grabweb.htm",FILE_BIN|FILE_READ|FILE_WRITE);
        FileWriteString(handle,strWebPage,StringLen(strWebPage));
        FileClose(handle);
    }
    return(true);
}
 
nickbilak:

this code is from forexfactory calendar indicator:

hello, any idea how to set timeout period for InternetOpenUrlA. It seams to hang when website is down? Thanks, kar

 
krana:

hello, any idea how to set timeout period for InternetOpenUrlA. It seams to hang when website is down? Thanks, kar

'Log' - function is not defined D:\mql4\MQLKODLARI\ekonclaenderokuma.mq4 (93, 9)

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