Simple shell script to part out requests/responses from a burp history file (with base64 output selected).

parse_burp_history.sh

#!/bin/bash

print_help() {
        echo "Usage: $(basename $0) <burp history file>"
}

INPUT=$1

if [ -z "$INPUT" ]; then
        echo "Error: Provide me with a burp history file."
        print_help
        exit 1
elif [ ! -f "$INPUT" ]; then
        echo "Error: Burp history file doesn't exist"
        print_help
        exit 2
fi

FIRST_TIME="1"

while read -r LINE; do

    if [[ $FIRST_TIME -eq 1 ]]; then
        FIRST_TIME=0;

        if [[ $(echo "$LINE" | grep -c request) -le 0 ]]; then
            echo "Error: First line is not a request"
            exit 1
        fi
    fi


    if [[ $(echo "$LINE" | grep -c request) -ge 1 ]]; then
        FILE_NAME=$(echo "$LINE" | md5sum | awk '{print $1}')

        echo "$LINE" | sed -e 's/.*CDATA\[//' -e 's/\]\].*//g' | base64 -d > ${FILE_NAME}_request.txt
    elif [[ $(echo "$LINE" | grep -c response) -ge 1 ]]; then
        echo "$LINE" | sed -e 's/.*CDATA\[//' -e 's/\]\].*//g' | base64 -d > ${FILE_NAME}_response.txt
    else
        echo "Error: Neither request nor response present for ${FILE_NAME}"
    fi
done < <(grep -e '<request base64' -e '<response base64' "$INPUT")