pastebin

#!/usr/bin/env bash

set -o errexit  # exit on fail
set -o pipefail # catch errors in pipelines
set -o nounset  # exit on undeclared variable
# set -o xtrace    # trace execution


__pastebin=$(basename "$0")


declare -A __messages
__messages[help]="
Save document to first available pastebin-like service.

Usage: ${__pastebin} [OPTIONS] [FILE]

Options:
    -h, --help           Print this message
    -x, --xclip          Insert link to clipboard
    -e, --encrypt        Encrypt with GPG

Examples:
    \$ ${__pastebin} ~/.profile
    \$ ${__pastebin} < ~/.profile
"
__messages[no_args]="
No arguments provided.
Use pastebin --help to see available options.
"
__messages[no_xclip]="
No xclip found in \$PATH. Check if it is installed.
Link was NOT copied to the clipboard.
"

for key in "${!__messages[@]}"; do
    __messages[${key}]=${__messages[${key}]:1:-1}
done


declare -A __services=(
    ['https://brpaste.xyz']='data=<-'
    ['https://0x0.st']='file=@-'
    ['https://clbin.com']='clbin=<-'
    ['https://clbin.com']='clbin=<-'
    ['https://ttm.sh']='file=@-'
    ['http://sprunge.us']='sprunge=<-'
    ['http://ix.io']='f:1=<-'
)


declare -A __args=(
    [file]='/dev/stdin'
    [xclip]=''
    [gpg]=''
)


__tmp_file=$(mktemp /tmp/XXXXXXXX)
trap 'rm ${__tmp_file}' EXIT


# If no arguments provided - just quit
if [[ $# == 0 ]]; then
    echo "${__messages[no_args]}"
    exit
fi


# Parsing arguments
while [[ "$#" != 0 ]]; do
    # Parse current argument
    case "$1" in
    -h | --help)
        echo "${__messages[help]}"
        exit
        ;;
    -x | --xclip)
        __args[xclip]=true
        shift
        ;;
    -e | --encrypt)
        __args[gpg]=true
        shift
        ;;
    -- )
        [[ "$#" != 1 ]] && __args[file]=$2
        break
        ;;
    -*)
        echo "Unrecognized option."
        exit 1
        ;;
    *)
        __args[file]=$1
        shift
        ;;
    esac
done


if [[ ${__args[file]} != /dev/stdin ]] && ! tty --silent; then
    echo "Provide either stdin stream OR file argument."
    exit 1
fi


# Copy input file to a temporary file
cp -- "${__args[file]}" "${__tmp_file}"


# Encrypt file and replace with encrypted version
if [[ ${__args[gpg]} ]]; then
    gpg --symmetric --armor -- "${__tmp_file}"
    mv -- "${__tmp_file}.asc" "${__tmp_file}"
fi


# Upload file and print download link
for url in "${!__services[@]}"; do
    form=${__services[${url}]}
    data=$(curl --write-out '\n%{http_code}' --silent --form "${form}" "${url}" <"${__tmp_file}" || true)
    code=${data##*$'\n'}
    if ((200 <= code && code < 300)); then
        read -r lnk < <(echo "${data}")
        [[ ${url} == *brpaste.xyz* ]] && lnk=https://brpaste.xyz/${lnk}
        echo "Download link: $(tput bold)${lnk}$(tput sgr0)"
        break
    fi
done


# Print gpg usage help, so that user could decrypt document easily
if [[ ${__args[gpg]} ]]; then
    echo "Get file with: $(tput bold)curl ${lnk} | gpg --decrypt -$(tput sgr0)"
fi
# Copy link to the clipboard if possible
if [[ ${__args[xclip]} ]]; then
    if ! type xclip &>/dev/null; then
        echo "${__messages[no_xclip]}"
    fi
    printf "%s" "${lnk}" | xclip -selection clipboard
fi