Web Log Parser. Submit to elearn: Make sure to name files EXACTLY as specified - including capitalization. Do not submit extra files. Do not zip or otherwise compress files unless told to.

Question

Objective

Youwill be able to read data from a file and use string functions to process text.

Assignment Instructions

Should be able to compile and run your program with:

g++ -std=c++11 assign5.cpp -o program.exe

program.exe (./program.exe on a mac)

Your task is to write a program that parses the log of visits to a website to extract some information about the visitors. Your program should read from a file called WebLog.txt which will consist of an unknown number of lines. Each line consists of the following pieces of data separated by tabs:

IPAddress Username Date Time Minutes

Where Date is in the format d-Mon-yy (day, Month as three letters, then year as two digits) and time is listed in 24-hour time.

Read in the entire file and print out each record from April (do not print records from other months) in the format:

username m/d/yy hour:minuteAM/PM duration

Where mm/dd/yy is a date in the format month number, day number, year and the time is listed in 12-hour time (with AM/PM).

For example, the record:

82.85.127.184 dgounin4 19-Apr-18 13:26:16 13

Should be printed as something like:

dgounin4 04/19/18 1:26PM 13

Make sure that you read the right input file name. Capitalization counts!

Do not use a hard-coded path to a particular directory, like "C:\Stuff\WebLog.txt". Your code must open a file that is just called "WebLog.txt".

Do not submit the test file; I will use my own.

Here is a sample data file you can use during development. Note that this file has 100 lines, but when I test your program, I will not use this exact file. You cannot count on there always being exactly 100 records.

Hints

1. Start small! Making sure your program works correctly on 1 line, or three lines is a lot easier than 100.
2. Remember, my test file will have a different number of lines.
3. You can read in something like 13:26:16 all as a string, or as an int, a char (:), an int, a char (:), and another int.
4. If you need to turn a string into an int or a double, you can use this method:

string foo = "123";

int x = stoi(foo); //convert string to int

string bar = "123.5";

double y = stod(bar); //convert string to double

Answer 1

using namespace std;

#include <iostream>

#include <string>

#include <fstream>

#include <string.h>

#include <stdio.h>

#include <stdlib.h>

typedef struct _TDate

{

int month;

int day;

int year;

} * TDate;

typedef struct _TTime

{

int hour;

int min;

int sec;

} * TTime;

typedef struct _TWebDataRec

{

char ipAddress[15];

char userName[55];

struct _TDate logonDate;

struct _TTime logonTime;

struct _TTime duration;

} * TWebDataRec;

MonthStr2Num ( string monthNameStr)

{

int iMonthNumReturn = 0;

if (monthNameStr.compare("Jan")==0)

{

iMonthNumReturn=1;

}

else if (monthNameStr.compare("Feb")==0)

{

iMonthNumReturn=2;

}

else if (monthNameStr.compare("Mar")==0)

{

iMonthNumReturn=3;

}

else if (monthNameStr.compare("Apr")==0)

{

iMonthNumReturn=4;

}

else if (monthNameStr.compare("May")==0)

{

iMonthNumReturn=5;

}

else if (monthNameStr.compare("Jun")==0)

{

iMonthNumReturn=6;

}

else if (monthNameStr.compare("Jul")==0)

{

iMonthNumReturn=7;

}

else if (monthNameStr.compare("Aug")==0)

{

iMonthNumReturn=8;

}

else if (monthNameStr.compare("Sep")==0)

{

iMonthNumReturn=9;

}

else if (monthNameStr.compare("Oct")==0)

{

iMonthNumReturn=10;

}

else if (monthNameStr.compare("Nov")==0)

{

iMonthNumReturn=11;

}

else if (monthNameStr.compare("Dec")==0)

{

iMonthNumReturn=12;

}

else

{

//should not happen

}

return(iMonthNumReturn);

}

void WebDataRecDump (TWebDataRec webDataRec, char * strMsg)

{

if (strMsg!=NULL)

{

cout << "******************************************" << endl;

cout << strMsg << endl;

}

cout << "**********************************************" << endl;

cout << " ip addr >" << webDataRec->ipAddress << "<" << endl;

cout << " username " << webDataRec->userName << "<" << endl;

cout << " logon date/time " << webDataRec->logonDate.month<< " " << webDataRec->logonDate.day << " " << webDataRec->logonDate.year

<< webDataRec->logonTime.hour << " " << webDataRec->logonTime.min << " " << webDataRec->logonTime.sec << endl;

cout << "duration time " << webDataRec->duration.hour << " " << webDataRec->duration.min << " " << webDataRec->duration.sec << endl;

}

void Parse(string strInbuff, TWebDataRec webDataRec)

{

char dateTimeStamp[55];

char durationTime[55];

char inbuff[255];

char logonDateBuff[55];

char logonTimeBuff[55];

char durationTimeBuff[55];

char numBuff[25];

strcpy(inbuff,strInbuff.c_str());

//cout << ">" << inbuff << "<" << endl;

//ip address

strcpy(webDataRec->ipAddress,strtok(inbuff," "));

//cout << " ip adrress >" << webDataRec->ipAddress << "<" << endl;

//username

strcpy(webDataRec->userName,strtok(NULL," "));

// cout << " username >" << webDataRec->userName << "<" << endl;

//logon date

strcpy(logonDateBuff,strtok(NULL," "));

//cout << " logon date >" << logonDateBuff << "<" << endl;

//logon time

strcpy(logonTimeBuff,strtok(NULL," "));

//cout << " logon time >" << logonTimeBuff << "<" << endl;

//duration

strcpy(durationTimeBuff,strtok(NULL," "));

//cout << " duration time >" << durationTimeBuff << "<" << endl;

//parses logon date

strcpy(numBuff,strtok(logonDateBuff,"-"));

webDataRec->logonDate.day= atoi(numBuff);

//cout << "logon day " << webDataRec->logonDate.day << endl;

strcpy(numBuff,strtok(NULL,"-"));

string name(numBuff);

webDataRec->logonDate.month = MonthStr2Num(numBuff);

//cout << "logon month " << webDataRec->logonDate.month << endl;

strcpy(numBuff,strtok(NULL,"-"));

webDataRec->logonDate.year = atoi(numBuff);

//cout << "logon year " << webDataRec->logonDate.year << endl;

//parses logon time

strcpy(numBuff,strtok(logonTimeBuff,":"));

webDataRec->logonTime.hour = atoi(numBuff);

strcpy(numBuff,strtok(NULL,":"));

webDataRec->logonTime.min = atoi(numBuff);

strcpy(numBuff,strtok(NULL,":"));

webDataRec->logonTime.sec = atoi(numBuff);

//cout << " logon time componenets hour:min:sec >" << webDataRec->logonTime.hour << " : " << webDataRec->logonTime.min << " : " << webDataRec->logonTime.sec << endl;

//duration time

if (strlen(durationTimeBuff)>5)

{

strcpy(numBuff,strtok(durationTimeBuff,":"));

webDataRec->duration.hour = atoi(numBuff);

strcpy(numBuff,strtok(NULL,":"));

webDataRec->duration.min = atoi(numBuff);

strcpy(numBuff,strtok(NULL,":"));

webDataRec->duration.sec = atoi(numBuff);

}

else

{

webDataRec->duration.hour=0;

strcpy(numBuff,strtok(durationTimeBuff,":"));

webDataRec->duration.min = atoi(numBuff);

strcpy(numBuff,strtok(NULL,":"));

webDataRec->duration.sec = atoi(numBuff);

}

//cout << " logon time componenets hour:min:sec >" << webDataRec->duration.hour << " : " << webDataRec->duration.min << " : " << webDataRec->duration.sec << endl;

}

Go()

{

ifstream infile((char*)"E:\\weblog.txt", ifstream::in);

char inbuff[255];

struct _TWebDataRec webDataRec;

char outbuff[255];

while (!infile.eof())

{

infile.getline(inbuff,255,'\n');

Parse(inbuff,&webDataRec);

if (webDataRec.logonDate.month!=4) { continue; }

memset(outbuff,0,255);

char AmPmStr[3];

int iHour;

if (webDataRec.logonTime.hour>12)

{

iHour = webDataRec.logonTime.hour-12;

strcpy(AmPmStr,"PM");

}

else

{

iHour = webDataRec.logonTime.hour;

strcpy(AmPmStr,"AM");

}

sprintf(outbuff,"%s %d/%d/%d %d:%d%s %d:%d:%d \n",webDataRec.userName,

webDataRec.logonDate.month,

webDataRec.logonDate.day,

webDataRec.logonDate.year,

iHour,

webDataRec.logonTime.min,

AmPmStr,

webDataRec.duration.hour,

webDataRec.duration.min,

webDataRec.duration.sec

);

cout << outbuff ;

}

infile.close();

}

main()

{

Go();

}