initial commit with docker

main.py

@@ -0,0 +1,60 @@
+import os
+import hashlib
+from flask import Flask, render_template, request, redirect, flash, url_for
+from werkzeug.middleware.proxy_fix import ProxyFix
+
+app = Flask(__name__)
+app.secret_key = os.getenv("SECRET_KEY")
+BASE_URL = os.getenv("BASE_URL")  # Adjust as appropriate for your deployment
+
+app.wsgi_app = ProxyFix(
+    app.wsgi_app, x_for=1, x_proto=1, x_host=1, x_prefix=1
+)
+
+UPLOAD_FOLDER = os.getenv("UPLOAD_FOLDER")
+os.makedirs(UPLOAD_FOLDER, exist_ok=True)
+
+ALLOWED_EXTENSIONS = {'txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'}
+
+def allowed_file(filename):
+    return '.' in filename and filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
+
+def get_file_hash(file_storage):
+    file_storage.seek(0)
+    sha = hashlib.sha256()
+    while True:
+        chunk = file_storage.read(4096)
+        if not chunk:
+            break
+        sha.update(chunk)
+    hash8 = sha.hexdigest()[:8]
+    file_storage.seek(0)
+    return hash8
+
+@app.route('/', methods=['GET', 'POST'])
+def upload_file():
+    uploaded_url = None
+    if request.method == 'POST':
+        if 'file' not in request.files:
+            flash('No file part', 'error')
+            return redirect(request.url)
+        file = request.files['file']
+        if file.filename == '':
+            flash('No selected file', 'error')
+            return redirect(request.url)
+        if file and allowed_file(file.filename):
+            hash8 = get_file_hash(file)
+            ext = file.filename.rsplit('.', 1)[1].lower()
+            filename = f"{hash8}.{ext}"
+            filepath = os.path.join(UPLOAD_FOLDER, filename)
+            file.save(filepath)
+            # Compose the URL (assuming files will eventually be hosted at /uploads/<filename>)
+            uploaded_url = f"{BASE_URL}/{filename}"
+            return render_template("index.html", uploaded_url=uploaded_url)
+        else:
+            flash('Invalid file extension', 'error')
+            return redirect(request.url)
+    return render_template("index.html", uploaded_url=uploaded_url)
+
+if __name__ == '__main__':
+    app.run(debug=True)