ig.sh

#!/usr/bin/env bash

# this script downloads instagram posts and ig profile pictures

trap kill_it TERM  # 15 - Termination signal
trap kill_it PIPE  # 13 - Broken pipe: write to pipe with no
trap kill_it SEGV  # 11 - Invalid memory reference
trap kill_it KILL  # 9  - Kill signal
trap kill_it FPE   # 8  - Floating point exception
trap kill_it ABRT  # 6  - Abort signal from abort(3)
trap kill_it ILL   # 4  - Illegal Instruction
trap kill_it QUIT  # 3  - Quit from keyboard
trap kill_it INT   # 2  - Interrupt from keyboard
trap kill_it HUP   # 1  - Hangup detected on controlling terminal or death of controlling process

function kill_it() {
    echo "Killed $@";
    exit 1;
}

if [ "$0" == "-bash" ] || [ "$0" == "bash" ]; then
  BASEDIR="$(realpath "$(dirname "${BASH_SOURCE[0]}")")";
else
  BASEDIR="$(realpath "$(dirname "${0}")")";
fi

cd "${BASEDIR}";
IFS=$(echo -en "\n\b");

function get_picture_hash() {
  picture_path="${1}";
  md5hash="$(md5sum "${picture_path}")";
  [ "$(echo "${md5hash}" | awk '{print $1}')" == 'MD5' ] && md5hash="$(echo "${md5hash}" | awk '{print $NF}')"; # hash on mac
  md5hash="$(echo "${md5hash}" | awk '{print $1}')";
  echo "${md5hash}";
}

function grab_pp(){  # ahaha
  ig_user="$1"
  pp_url=$(wget -q https://instagram.com/$ig_user/ -O - | grep "og:image" | sed 's|.*<meta property="og:image" content="||' | sed 's|".*||')
  if [ "$pp_url" != "" ]; then
    [ ! -d ./instagram/users/$ig_user ] && mkdir -p ./instagram/users/$ig_user;
    pic_jpg="./instagram/users/$ig_user/profile.jpg"
    wget -q "$pp_url" -O "${pic_jpg}"
    if [ -f "${pic_jpg}" ] && [[ "$(file "${pic_jpg}")" != *"empty"* ]]; then
        md5hash="$(get_picture_hash "${pic_jpg}")";
        backup_pic_jpg="./instagram/users/$ig_user/profile-${md5hash}.jpg";
        if [ ! -f "${backup_pic_jpg}" ]; then
          cp "${pic_jpg}" "${backup_pic_jpg}";
        fi
    fi
  fi
}

function grab_ig() { 
  ACTION="$1";
  PARAM1="$2";
  OPTIONS=${@:3};
  if [ -d ./instagram ]; then
    if [ "$ACTION" == "user" ]; then
      [ ! -d ./instagram/users ] && mkdir -p ./instagram/users;
      [ ! -f ./instagram/users.txt ] && touch ./instagram/users.txt;
      [ "$(grep -- "$PARAM1" ./instagram/users.txt)" == "" ] && echo $PARAM1 >> ./instagram/users.txt;
      instalooter user -v $PARAM1 ./instagram/users/$PARAM1 ${OPTIONS};
    fi;
    if [ "$ACTION" == "post" ]; then
      [ ! -d ./instagram/posts ] && mkdir -p ./instagram/posts;
      [ ! -f ./instagram/posts.txt ] && touch ./instagram/posts.txt;
      [ "$(grep -- "$PARAM1" ./instagram/posts.txt)" == "" ] && echo $PARAM1 >> ./instagram/posts.txt;
      instalooter post -v $PARAM1 ./instagram/posts/$PARAM1 ${OPTIONS};
    fi;
    if [ "$ACTION" == "hashtag" ]; then
      [ ! -d ./instagram/hashtags ] && mkdir -p ./instagram/hashtags;
      [ ! -f ./instagram/hashtags.txt ] && touch ./instagram/hashtags.txt;
      [ "$(grep -- "$PARAM1" ./instagram/hashtags.txt)" == "" ] && echo $PARAM1 >> ./instagram/hashtags.txt;
      instalooter hashtag -v $PARAM1 ./instagram/hashtags/$PARAM1 ${OPTIONS};
    fi;
  fi
}

if [ "$1" == "u" ] || [ "$1" == "user" ]; then
  grab_pp $2
  grab_ig user $2 ${@:3}
elif [ "$1" == "p" ] || [ "$1" == "post" ]; then
  grab_ig post $2
elif [ "$1" == "h" ] || [ "$1" == "hashtag" ]; then
  grab_ig hashtag $2
else
  for u in $(ls -1 ./instagram/users/); do
    grab_pp $u
    grab_ig user $u ${@:3}
  done
  for h in $(ls -1 ./instagram/hashtags/); do
    grab_ig hashtag $h
  done
fi