aria2ctl.sh

#!/bin/sh

ARIA2_URI=${ARIA2_URI:-127.0.0.1:6800}
[ -n "$ARIA2_SECRET" ] && SECRET='"secret":"$ARIA2_SECRET", '

die() {
    [ -n "$1" ] && echo $1
    cat << EOF
Usage: $(basename $0) OPTION (VALUE)
Available options:
    bt-max-open-files (number)
    download-result (download|full)
    log (filename)
    log-level (debug|info|notice|warn|error)
    max-concurrent-downloads (number)
    max-download-result (number)
    max-overall-download-limit (size)
    max-overall-upload-limit (size)
    save-cookies (filename)
    save-session (filename)
    server-stat-of (filename)
EOF
    exit 1
}

getOption() {
    local out="$(curl -s -H 'Content-Type: application/json' -H 'Accept: application/json' \
        --data-binary '{"jsonrpc":"2.0", "id":"asdf", "method":"aria2.getGlobalOption"}' \
        $ARIA2_URI/jsonrpc)"
    local err="$(echo "$out" | jq -r '.error.message')"
    [ "$err" != "null" ] && die "Error: $err"
    local res="$(echo "$out" | jq '.result["'$1'"]')"
    [ "$res" = "null" ] && die "Error: No such option $1"
    echo "$1: $res"
}

setOption() {
    local out="$(curl -s -H 'Content-Type: application/json' -H 'Accept: application/json' \
        --data-binary "{\"jsonrpc\":\"2.0\", \"id\":\"asdf\", \"method\":\"aria2.changeGlobalOption\", \"params\":[{\"$1\": \"$2\"}]}" \
        $ARIA2_URI/jsonrpc)"
    local err="$(echo "$out" | jq -r ".error.message")"
    [ "$err" != "null" ] && die "Error: $err"
    getOption "$1"
}

[ $# -eq 0 ] && die
[ $# -eq 1 ] && getOption "$1" || setOption "$1" "$2"