Downloads Google Drive attachments from a EML file.

download_files_from_email_eml_file.sh

#!/bin/bash

# Check if an argument has been provided
if [ $# -eq 0 ]; then
    echo "No argument provided. Please enter the .eml file path:"
    read file_path
else
    file_path=$1
fi

# Check if the provided .eml file exists
if [ ! -f $file_path ]; then
    echo "File $file_path not found!"
    exit 1
fi

# Create a 'files' directory if it doesn't already exist
mkdir -p files

# Read the .eml file and extract all the Google Drive links
echo "Extracting Google Drive links from $file_path..."
links=$(cat $file_path | grep -o 'https://drive.google.com/file/d/[^/]*/')

# Loop over the links, extract the file ID from each link, and use wget to download each file into the 'files' directory
for link in $links; do
    file_id=$(echo $link | awk -F'/' '{ print $(NF-1) }')
    file_path="files/$file_id"
    if [ -f $file_path ] && [ -s $file_path ]; then
        echo "File $file_path already exists and is not empty, skipping download."
    else
        echo "Downloading file $file_id..."
        success=0
        while [ $success -eq 0 ]; do
            wget --no-check-certificate "https://drive.google.com/uc?export=download&id=$file_id" -O $file_path
            if [ $? -eq 0 ]; then
                success=1
                echo "Downloaded file $file_id successfully."
            else
                echo "Download failed. Retrying in 10 seconds..."
                sleep 10
            fi
        done
    fi
done