#!/usr/bin/env bash

source .env.default
source .env

function log() {
    echo -e "\033[33m$@\033[0m"
}

function api_call {
    curl -s -H "X-Api-Key: $RAPID7_API_KEY" "https://us.api.insight.rapid7.com/opendata/studies/$1/"
}

function get_timestamp { # study, dataset
    study="$1"
    dataset="$2"
    if [ -z "$RAPID7_API_KEY" ]
    then
        line=$(curl -s "https://opendata.rapid7.com/$study/" | grep "href=\".\+-$dataset.json.gz\"" | head -1)
        echo "$line" | cut -d'"' -f2 | cut -d'/' -f3 | cut -d'-' -f4
    else
        filename=$(api_call "$study" | jq '.sonarfile_set[]' -r | grep "${dataset}.json.gz" | sort | tail -1)
        echo $filename | cut -d'-' -f4
    fi
}

function get_download_url { # study, dataset
    study="$1"
    dataset="$2"
    if [ -z "$RAPID7_API_KEY" ]
    then
        line=$(curl -s "https://opendata.rapid7.com/$study/" | grep "href=\".\+-$dataset.json.gz\"" | head -1)
        echo "https://opendata.rapid7.com$(echo "$line" | cut -d'"' -f2)"
    else
        filename=$(api_call "$study" | jq '.sonarfile_set[]' -r | grep "${dataset}.json.gz" | sort | tail -1)
        api_call "$study/$filename/download" | jq '.url' -r
    fi
}

function feed_rapid7 { # study, dataset, rule_file, ./feed_dns args
    # The dataset will be imported if:
    #   none of this dataset was ever imported
    #  or
    #   the last dataset imported is older than the one to be imported
    # or
    #  the rule_file is newer than when the last dataset was imported
    #
    # (note the difference between the age oft the dataset itself and
    # the date when it is imported)
    study="$1"
    dataset="$2"
    rule_file="$3"
    shift; shift; shift
    new_ts="$(get_timestamp $study $dataset)"
    old_ts_file="last_updates/rapid7_${study}_${dataset}.txt"
    if [ -f "$old_ts_file" ]
    then
        old_ts=$(cat "$old_ts_file")
    else
        old_ts="0"
    fi
    if [ $new_ts -gt $old_ts ] || [ $rule_file -nt $old_ts_file ]
    then
        link="$(get_download_url $study $dataset)"
        log "Reading $dataset dataset from $link ($old_ts -> $new_ts)…"
        [ $SINGLE_PROCESS -eq 1 ] && EXTRA_ARGS="--single-process"
        curl -L "$link" | gunzip | ./feed_dns.py rapid7 $@ $EXTRA_ARGS
        if [ $? -eq 0 ]
        then
            echo $new_ts > $old_ts_file
        fi
    else
        log "Skipping $dataset as there is no new version since $old_ts"
    fi
}

feed_rapid7 sonar.rdns_v2 rdns rules_asn/first-party.list
feed_rapid7 sonar.fdns_v2 fdns_a rules_asn/first-party.list --ip4-cache "$CACHE_SIZE"
# feed_rapid7 sonar.fdns_v2 fdns_aaaa rules_asn/first-party.list  --ip6-cache "$CACHE_SIZE"
feed_rapid7 sonar.fdns_v2 rules/first-party.list fdns_cname