This is a script that can get a url related to the uploaded image/text from an implementation of vim-cn pastebin

vimcnpaste.sh

#!/bin/bash
# author: @Bekcpear <i@bitbili.net>
# This is a script that can get a url related to the uploaded image/text from an implementation of vim-cn pastebin"
#

set -e

#vim-cn style pastebin urls
uptexturl='https://cfp.vim-cn.com/'
upimageurl='https://img.vim-cn.com/'

function sizeof(){
  if [ "x""$1" == "xfile" ]; then
    eval "length=\$(wc -m $2 | cut -d ' ' -f 1)"
  elif [ "x""$1" == "xclipb" ]; then
    if [ "$2"x == "textx" ]; then
      eval "length=\$(xclip -selection clipboard -t TEXT -o | wc -m)"
    else
      eval "length=\$(xclip -selection clipboard -t UTF8_STRING -o | wc -m)"
    fi
  else
    eval "length=\$(echo \"\$2\" | wc -m)"
  fi
  if [ $length -lt 23 ]; then
    echo "Text is too short. abort" > /dev/stderr
    exit 1
  elif [ $length -gt 65536 ]; then
    echo "Text is too long. abort" > /dev/stderr
    exit 1
  fi
}

if [ -t 0 ]; then
  function showHelp(){
    echo "  Usage: ${1##*/} [<filepath>]"
    echo "           OR"
    echo "         <text output> | ${1##*/}"
    echo "    1. contents will be uploaded from the clipboard if the argument is omitted"
    echo "    2. only text/image type contents supported, they are judged automatically"
    echo
    echo "  -t  force to text type"
    echo "  -h  show this help"
  }

  [ "$1"x == "-hx" ] && showHelp $0 && exit 0
  if [[ -n $2 ]]; then
    if [[ "$1" == "-t" ]]; then
      path="$2"
    elif [[ "$2" == "-t" ]]; then
      path="$1"
    else
      echo "Invalid argument(s) $2 (...)" > /dev/stderr && showHelp $0 && exit 1
    fi
    forcetext=1
  else
    path="$1"
  fi
  loadcon=0
  rawpath=""
  type="text"
  loadcmd=''

  if [ "$1"x == ""x ]; then
    if [[ "$(xclip -selection clipboard -t TARGETS -o | egrep 'text/(uri-list)|(x-moz-url)')" != "" ]]; then
      rawpath="$(xclip -selection clipboard -t text/plain -o)"
    fi
    if [[ "${rawpath}" =~ "file://".* ]]; then
      path="${rawpath#file://}"
    else
      loadcon=1
    fi
  fi

  if [ $loadcon -eq 0 ]; then
    function _isText(){
      if [[ -n $forcetext ]]; then
        return 0
      fi
      local t="$(file --mime-type "$1" | awk '$NF ~ /^text\/.*$/ {printf $NF}')"
      t+="$(file --mime-type "$1" | awk '$NF ~ /^application\/json$/ {printf $NF}')"
      [[ $t != '' ]]
    }
    function _isImage(){
      local t="$(file --mime-type "$1" | awk '$NF ~ /^image\/.*$/ {printf $NF}')"
      [[ $t != '' ]]
    }
    if _isText "${path}"; then
      loadcmd="cat ${path}"
      sizeof 'file' "${path}"
    elif _isImage "${path}"; then
      loadcmd="cat ${path}"
      type="image"
    else
      echo "Invalid argument or unknown file type: ${path}" > /dev/stderr
      showHelp $0
      exit 1
    fi
  elif [ $loadcon -eq 1 ]; then
    types=$(xclip -selection clipboard -t TARGETS -o)
    [ $? -ne 0 ] && echo "no content in the clipboard. abort" > /dev/stderr && exit 1
    isutf8=$(xclip -selection clipboard -t TARGETS -o | grep "UTF8_STRING") || \
    istext=$(xclip -selection clipboard -t TARGETS -o | grep "TEXT") || true
    if [[ "${istext}x" == "x" && "${isutf8}x" == "x" ]]; then
      type="image"
      case ${types} in
        *"image/png"* )
          loadcmd='xclip -selection clipboard -t image/png -o'
          break
          ;;
        *"image/jpg"* )
          loadcmd='xclip -selection clipboard -t image/jpg -o'
          break
          ;;
        *"image/jpeg"* )
          loadcmd='xclip -selection clipboard -t image/jpeg -o'
          break
          ;;
        *"image/webp"* )
          loadcmd='xclip -selection clipboard -t image/webp -o'
          break
          ;;
        *"image/bmp"* )
          loadcmd='xclip -selection clipboard -t image/bmp -o'
          break
          ;;
        *)
          ;;
      esac
    elif [[ "${isutf8}" != "" ]]; then
      loadcmd='xclip -selection clipboard -t UTF8_STRING -o'
      sizeof 'clipb' 'utf8'
    else
      loadcmd='xclip -selection clipboard -t TEXT -o'
      sizeof 'clipb' 'text'
    fi
  fi

  if [[ "$1" == "" ]]; then
    clipinfo="\e[36mClipboard contents:\e[0m\n"
    if [[ "${type}" == "text" ]]; then
      eval "examplec=\$($loadcmd)"
      etc=""
      if [[ ${#examplec} -gt 90 ]]; then
        etc=" \e[4m\e[36m… and remaining $((${#examplec} - 89)) characters\e[0m"
      fi
      clipinfo="${clipinfo}\e[38;5;254m${examplec:0:89}\e[0m${etc}\n"
    else
      if [[ "${path}" != "" ]]; then
        clipinfo="${clipinfo}file://${path}\n"
      else
        clipinfo="${clipinfo}[clipboard raw data] type: ${type}\n"
      fi
    fi
    printf "${clipinfo//%/%%}"
    echo -ne "\e[1m\e[33mUpload contents from clipboard?[y/N]\e[0m "
    while read -n 1 -re read_parm; do
      case ${read_parm} in
        [yY])
          break
          ;;
        *)
          if [[ "${read_parm}" == "" ]]; then
            echo
          fi
          echo "bye~" > /dev/stderr
          exit 1
          ;;
      esac
    done
  fi

  if [ $type == 'text' ];then
    echo "Run: $loadcmd | curl -sF 'vimcn=<-' '${uptexturl}'"
    eval "url=\$($loadcmd | curl -sF 'vimcn=<-' '${uptexturl}')"
  elif [ $type == 'image' ];then
    echo "Run: $loadcmd | curl -sF 'name=@-' '${upimageurl}'"
    eval "url=\$($loadcmd | curl -sF 'name=@-' '${upimageurl}')"
  fi
else
  pipelinein="$(</dev/stdin)"
  sizeof "pipelinein" "${pipelinein}"
  echo "Run: <text output> | curl -sF 'vimcn=<-' '${uptexturl}'"
  eval "url=\$(echo \"\${pipelinein}\" | curl -sF 'vimcn=<-' '${uptexturl}')"
fi

[ $? -ne 0 ] && echo 'Upload err' > /dev/stderr && exit 1
eval "url=\$(echo \"\${url}\" | sed 's#http://#https://#')"
echo -n "Re: $url" && [[ "$url" =~ ^http ]] && { echo -n "$url" | xclip -selection 'clipboard' && echo '  <url copied>' || echo '  <url not copied>'; }