upload-file

#!/bin/bash

readonly program="$(basename "${0}")"
readonly hosts=('transfer.sh' 'alpha.transfer.sh' 'bayfiles.com' 'anonfile.com' 'megaupload.is' 'forumfiles.com')
readonly default_host="${hosts[0]}"

function ascii_basename {
  basename "${1}" | sed -e 's/[^a-zA-Z0-9._-]/-/g'
}

function string_in_array {
  local string="${1}"

  for value in "${@:2}"; do
    [[ "${string}" == "${value}" ]] && return 0
  done
  return 1
}

function syntax_error {
  echo -e "${program}: ${1}\nTry \`${program} --help\` for more information." >&2
  exit 1
}

function usage {
  echo "
    Upload files and directories to a file hosting service.
    If multiple files or a directory are given, they will be zipped beforehand.
    To set a host as the default, export UPLOAD_FILE_TO in your shell.

    Valid hosts:
      $(printf '\n      %s' "${hosts[@]}")

    Usage:
      ${program} [options] <path...>

    Options:
      -u, --upload-host <host>   File host to upload to. Defaults to ${default_host}.
      -h, --help                 Show this help.
  " | sed -E 's/^ {4}//'
}

args=()
while [[ "${1}" ]]; do
  case "${1}" in
    -h | --help)
      usage
      exit 0
      ;;
    -u | --upload-host)
      UPLOAD_FILE_TO="${2}"
      shift
      ;;
    --)
      shift
      args+=("${@}")
      break
      ;;
    -*)
      syntax_error "unrecognized option: ${1}"
      ;;
    *)
      args+=("${1}")
      ;;
  esac
  shift
done
set -- "${args[@]}"

if [[ "${#}" -lt 1 ]]; then
  usage
  exit 1
fi

# Abort if any of the paths is invalid
for path in "${@}"; do
  if [[ ! -e "${path}" ]]; then
    echo "${path} does not exist." >&2
    exit 1
  fi
done

# If acting on multiple files, first copy them to a directory
if [[ "${#}" -gt 1 ]]; then
  readonly tmp_zip_dir="$(mktemp -d)/archive"
  mkdir "${tmp_zip_dir}"
  cp -R "${@}" "${tmp_zip_dir}"
  readonly given_file="${tmp_zip_dir}"
else
  readonly given_file="${1}"
fi

# Make zip if acting on a directory
if [[ -d "${given_file}" ]]; then
  readonly tmp_dir="$(mktemp -d)"
  readonly dir_name="$(ascii_basename "${given_file}")"
  readonly zip_file="${tmp_dir}/${dir_name}.zip"
  DITTONORSRC=1 ditto -ck "${given_file}" "${zip_file}"
  readonly file_path="${zip_file}"
else
  readonly file_path="${given_file}"
fi

# Upload
readonly file_name=$(ascii_basename "${file_path}")

if [[ -n "${UPLOAD_FILE_TO}" ]] && string_in_array "${UPLOAD_FILE_TO}" "${hosts[@]}"; then
  upload_host="${UPLOAD_FILE_TO}"
else
  upload_host="${default_host}"
fi

if [[ "${upload_host}" =~ ^(alpha\.)?transfer\.sh$ ]]; then
  url="$(curl --globoff --progress-bar --upload-file "${file_path}" "https://${upload_host}/${file_name}")"
else
  url="$(curl --globoff --progress-bar --form "file=@${file_path}" "https://api.${upload_host}/upload" | ruby -e 'require "json"; data = JSON.parse(gets); abort "There was an error uploading" if data["status"] == false; puts data["data"]["file"]["url"]["full"]')"
fi

echo -n "${url}" | pbcopy
echo "Copied to clipboard: ${url}"