Direct download a file from OneDrive from a share link using shell

download-onedrive-file.sh

#!/usr/bin/env bash
set -o errexit -o nounset

error() {
    echo "$1" >&2
    exit 1
}

read-json() {
    local -A "j=($(sed -E 's/[{}]//g; s/"([^"]+)":"([^"]+)"/\[\1\]="\2"/g; s/,/ /g; s/\$/$$/g'))"
    local keys="${@:?}" key source dest values=''
    for key in ${keys}; do
        IFS=: read source dest <<<"$key"
        [ -z "$dest" ] && dest=$source
        declare -g "$dest=${j[$source]}"
    done
}

ONE_DRIVE_API_ENDPOINT="https://my.microsoftpersonalcontent.com/_api/v2.0"

share_url="${1:?}"
share_url_encoded="$(<<<"$share_url" base64 -w0 | tr -d '=' | tr '/+' '_-')"
drive_url="$ONE_DRIVE_API_ENDPOINT/shares/u!$share_url_encoded/driveitem"

read-json token:badger_token < <(curl -s \
                                    -H "Content-Type: application/json" \
                                    -d '{"appId":"5cbed6ac-a083-4e14-b191-b4ba07653de2"}' \
                                    https://api-badgerp.svc.ms/v1.0/token)
[ -z "$badger_token" ] && error "Failed to get badger token"

read-json @content.downloadUrl:download_url name:file_name \
    < <(curl -s \
            -H "Accept: application/json" \
            -H "Prefer: autoredeem" \
            -H "Authorization: Badger $badger_token" \
            "$drive_url?select=@content.downloadUrl,name")
[ -z "$download_url" ] && error "Failed to get download URL"

echo "Downloading $file_name"
curl --progress-bar -o "$file_name" -- $download_url