Upload a file using Alist V3 and prints its download link for easy sharing.

alist-upload.sh

#!/bin/bash

# Set default UPLOAD_PATH value
UPLOAD_PATH="/path/to/upload/to"

# Use getopts to check for the -d switch and set the UPLOAD_PATH value accordingly
while getopts "d:" opt; do
  case $opt in
    d)
      UPLOAD_PATH=$OPTARG
      ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      echo "Usage: $0 [-d /path/to/upload/to] /path/to/local/file"
      exit 1
      ;;
  esac
done

# Shift the getopts arguments so $1 contains the file path argument
shift $((OPTIND-1))

if [ $# -ne 1 ]; then
  echo "Usage: $0 [-d /path/to/upload/to] /path/to/local/file"
  exit 1
fi

FILE_PATH="$1"

if [ ! -f "$FILE_PATH" ]; then
  echo "Error: file '$FILE_PATH' not found."
  exit 1
fi

# Define API endpoint
BASE_URL="https://example.com/api/fs"

# Define your access token
TOKEN="alist-XXXXXXX"

# Extract the filename from the local file path
FILE_NAME="$(basename "${FILE_PATH}")"

# Perform the file upload
curl -s -X PUT "${BASE_URL}/form" \
  -H "Authorization: ${TOKEN}" \
  -H "File-Path: ${UPLOAD_PATH}/${FILE_NAME}" \
  -F "file=@${FILE_PATH}" > /dev/null

# Refresh the file list
curl -s -X POST "${BASE_URL}/list" \
  -H "Authorization: ${TOKEN}" \
  -H "Content-Type: application/json" \
  -d "{\"path\":\"${UPLOAD_PATH}\", \"refresh\": true, \"password\":\"\"}" \
  -o /dev/null

# Keep retrying until a non-null download link is obtained
MAX_RETRIES=5
RETRY_COUNT=0
DOWNLOAD_LINK=$(curl -s -X POST "${BASE_URL}/get" \
  -H "Authorization: ${TOKEN}" \
  -H "Content-Type: application/json" \
  -d "{\"path\":\"${UPLOAD_PATH}/${FILE_NAME}\", \"password\":\"\"}" \
  | jq -r '.data.raw_url')

while [ "$DOWNLOAD_LINK" = "null" ] && [ "$RETRY_COUNT" -lt "$MAX_RETRIES" ]; do
  # Refresh the file list
  curl -s -X POST "${BASE_URL}/list" \
    -H "Authorization: ${TOKEN}" \
    -H "Content-Type: application/json" \
    -d "{\"path\":\"${UPLOAD_PATH}\", \"refresh\": true, \"password\":\"\"}" \
    -o /dev/null

  # Increment retry count
  RETRY_COUNT=$((RETRY_COUNT + 1))

  # Retrieve the download link for the file
  DOWNLOAD_LINK=$(curl -s -X POST "${BASE_URL}/get" \
    -H "Authorization: ${TOKEN}" \
    -H "Content-Type: application/json" \
    -d "{\"path\":\"${UPLOAD_PATH}/${FILE_NAME}\", \"password\":\"\"}" \
    | jq -r '.data.raw_url')
done

# Print the download link
if [ "$DOWNLOAD_LINK" = "null" ]; then
  echo "Failed to obtain download link after $MAX_RETRIES retries."
else
  echo "File uploaded successfully!"
  echo "Download link: ${DOWNLOAD_LINK}"
fi