use env vars for passwords, out path and port

.gitignore

@@ -4,3 +4,4 @@ password.txt
 /.vs
 /.vscode
 data.json
+.env

backend/main.py

@@ -4,13 +4,25 @@ from werkzeug.security import generate_password_hash, check_password_hash
 import json
 import sqlite3
 import os
+from dotenv import load_dotenv
+
 DB_PATH = os.path.join(os.path.dirname(__file__), 'links.db')
 
+load_dotenv()
+
 app = Flask(__name__)
 auth = HTTPBasicAuth('CustomBasic')
 
+password = os.environ.get("PASSWORD")
+if not password:
+    raise Exception("PASSWORD must be set")
+
+port = int(os.environ.get("PORT") or 3000)
+
+out_path = os.environ.get("OUT_PATH") or "/srv/www-csc-links/index.html"
+
 users = {
-    "admin": generate_password_hash("test"),
+    "admin": generate_password_hash(password),
 }
 
 def get_data_from_query(query):
@@ -29,7 +41,7 @@ def get_data_from_query(query):
 
 def regen_html():
     """Gets links from DB and outputs them in HTML"""
-    outfile = open('/users/n3parikh/www/links/index.html', 'w')
+    outfile = open(out_path, 'w')
     links_list = get_data_from_query('SELECT url, name FROM links WHERE active=1 ORDER BY position')
     html = render_template('template.html', links_list=links_list)
     print(html, file=outfile)
@@ -106,4 +118,4 @@ def update_clicks():
         return 'ok'
 
 if __name__ == "__main__":
-    app.run(port=5729, host="0.0.0.0")
+    app.run(port=port, host="0.0.0.0")

backend/requirements.txt

@@ -1,14 +1,18 @@
 astroid==2.5.1
 click==7.1.2
 Flask==1.1.2
+Flask-HTTPAuth==4.2.0
 isort==5.7.0
 itsdangerous==1.1.0
 Jinja2==2.11.3
 lazy-object-proxy==1.5.2
 MarkupSafe==1.1.1
 mccabe==0.6.1
+pkg-resources==0.0.0
 pylint==2.7.2
+python-dotenv==0.17.1
 toml==0.10.2
+typed-ast==1.4.3
 types-click==0.1.4
 types-Flask==0.1.1
 types-Jinja2==0.1.0
@@ -17,4 +21,3 @@ types-typing-extensions==3.7.2
 types-Werkzeug==0.1.1
 Werkzeug==1.0.1
 wrapt==1.12.1
-Flask-HTTPAuth==4.2.0