/*-----------------------------+
| |
| Shared by www.Aptrafx.com |
| |
+------------------------------*/
//+------------------------------------------------------------------+
//| grabweb.mq4 |
//| Copyright © 2006, Abhi |
//| http://www.megadelfi.com/experts/ |
//| E-mail: grabwebexpert{Q)megadelfi.com |
//| fix my e-mail address before mailing me ;) |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2006, Abhi"
#property link "http://www.megadelfi.com/experts/"
#property show_inputs
extern string sUrl = "http://www.forexfactory.com/index.php?s=&page=calendar&timezoneoffset=g0"; // GMT output for the week
extern string Outputfile = "NewsItems.csv";
extern bool IncludeHigh = true;
extern bool IncludeMedium = true;
extern bool IncludeLow = false;
extern bool IncludeSpeaks = false; // news items with "Speaks" in them have very different characteristics
extern string ConvertUSDto = "USD"; // can change this to a full currency pair such as "GBPUSD"
extern double Parameter2 = 0;
extern double Parameter3 = 0;
extern double Parameter4 = 0;
extern double Parameter5 = 0;
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"
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
);
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); }
}
int start()
{
// Print("fake start");
}
int init()
{
int hInternet;
string iResult;
int lReturn[]={1};
string sBuffer="x";
string sData, csvoutput;
int handle;
int bytes;
int beginning, finalend,end,i;
string aju, text, newsdate, newstime, country, news, level, actual, forecast, previous;
hInternet = InternetOpenUrlA(hSession(FALSE), sUrl, "0", 0, 67108864, 0);
Print("hInternet: " + hInternet);
iResult = InternetReadFile(hInternet, sBuffer, Buffer_LEN, lReturn);
Print("iResult: " + iResult);
Print("lReturn: " + lReturn[0]);
//iResult = InternetCloseHandle(hInternet);
Print("iResult: " + iResult);
Print("sBuffer: " + sBuffer);
Comment("sBuffer: " + sBuffer);
bytes = lReturn[0];
sData = 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];
sData = sData + StringSubstr(sBuffer, 0, lReturn[0]);
}
Print("sData: " + sData);
iResult = InternetCloseHandle(hInternet);
Print("iResult: " + iResult);
handle=FileOpen(Day()+ "-"+ Month() +"-"+ Year() +"-"+ "grabweb.htm",FILE_BIN|FILE_READ|FILE_WRITE);
if(handle<1)
{
Print("Can\'t open htm file, the last error is ", GetLastError());
return(false);
}
FileWriteString(handle,sData,StringLen(sData));
FileClose(handle);
Print("bytes: "+bytes);
// htm file is written, let's parse it now and write to csv file
handle=FileOpen(Outputfile,FILE_CSV|FILE_WRITE,",");
if(handle<1)
{
Print("Can\'t open csv file, the last error is ", GetLastError());
return(false);
}
FileWrite(handle,"Description","Currency","DateTime","TimeZone","Level","Parameter2","Parameter3","Parameter4","Parameter5");
beginning = 1;
beginning = StringFind(sData,"<span class=\"smallfont\">Info.</span>",beginning)+36;
finalend = StringFind(sData,"</table>",beginning)-1235;
while (beginning < finalend)
{
for (i=0; i < 8; i++)
{
beginning = StringFind(sData,"<span class=\"smallfont\"",beginning)+23;
beginning = StringFind(sData,">",beginning)+1;
end = StringFind(sData,"</span>",beginning)-0;
if (end != beginning)
{
text = StringSubstr(sData, beginning, end-beginning);
}
else
{
text = "";
}
if (i == 0)
{
if (text != "")
{
newsdate = text;
}
else
{
text = newsdate;
}
}
// date and time conversion here if needed
if (i == 1)
{
text = StringTrimLeft(text);
newstime = StringTrimRight(text);
}
if (i == 2)
{
country = text;
}
if (i == 3)
{
news = text;
beginning = StringFind(sData,"src=\"http://www.forexfactory.com/forexforum/images/misc/",beginning)+59;
end = StringFind(sData,".gif",beginning);
text = StringSubstr(sData,beginning,end-beginning);
level = text;
}
if (i == 4)
{
actual = text;
}
if (i == 5)
{
forecast = text;
}
if (i == 6)
{
previous = text;
}
}
// csvoutput = newsdate + ", " + newstime + ", " + country + ", " + news + ", " +level + ", " + actual + ", " + forecast + ", " + previous;
if (!IncludeHigh && level == "high") continue;
if (!IncludeMedium && level == "med") continue;
if (!IncludeLow && level == "low") continue;
if (!IncludeSpeaks && (StringFind(news,"speaks") != -1 || StringFind(news,"Speaks") != -1) ) continue;
if (country == "USD") country = ConvertUSDto;
int nLevel = 0;
if (level == "high") nLevel = 3;
if (level == "med") nLevel = 2;
if (level == "low") nLevel = 1;
csvoutput = StringConcatenate(news,",",country,",",MakeDateTime(newsdate,newstime),",GMT,",nLevel,",",Parameter2,",",Parameter3,",",Parameter4,",",Parameter5);
Print("newslist: "+ csvoutput);
FileWrite(handle,news,country,MakeDateTime(newsdate,newstime),"GMT",nLevel,Parameter2,Parameter3,Parameter4,Parameter5);
}
FileClose(handle);
return(0);
}
//+------------------------------------------------------------------+
string MakeDateTime(string strDate, string strTime)
{
// converts forexfactory time & date into yyyy.mm.dd hh:mm
int nDateSpacePos = StringFind(strDate," ");
int nDateSlashPos = StringFind(strDate,"/");
string strMonth = StringSubstr(strDate,nDateSpacePos+1,nDateSlashPos-nDateSpacePos-1);
string strDay = StringSubstr(strDate,nDateSlashPos+1);
int nTimeColonPos = StringFind(strTime,":");
string strHour = StringSubstr(strTime,0,nTimeColonPos-1);
string strMinute = StringSubstr(strTime,nTimeColonPos+1,2);
string strAM_PM = StringSubstr(strTime,StringLen(strTime)-2);
int nHour24 = StrToInteger(strHour);
if (strAM_PM == "pm" || strAM_PM == "PM")
{
nHour24 += 12;
}
string strHourPad = "";
if (nHour24 < 10) strHourPad = "0";
return(StringConcatenate(Year(),".",strMonth,".",strDay," ",strHourPad,nHour24,":",strMinute));
}
Sample
Analysis
Market Information Used:
Indicator Curves created:
Indicators Used:
Custom Indicators Used:
wininet
Order Management characteristics:
Other Features:
Uses files from the file system
It writes information to file