Add installation.py for generating config.

installation.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python3
+
+import bcrypt
+import json
+
+
+def get_number(prompt):
+    while True:
+        try:
+            num = int(input(prompt))
+            return num
+        except ValueError:
+            print("Not a number!\n")
+
+
+def get_boolean(prompt, default):
+    string = input(prompt).lower()
+    if string in ["y", "yes", "true", "t", "1"]:
+        return True
+    elif string in ["n", "no", "false", "f", "0"]:
+        return False
+    return default
+
+
+config = {}
+
+# Master password
+print("""
+Enter master password. Master password is the password you provide to your bus
+factor. When the master password is entered, The Long Night will send messages
+to you via all the configured mediums. If you do not respond within 2 days
+(configurable), The Long Night will add the supplied key as an authorized key
+for the user it is running as.
+""")
+password = input("> ").encode()
+config["password"] = bcrypt.hashpw(password, bcrypt.gensalt()).decode()
+
+print("\nEnter number of days to wait before adding the ssh key\n")
+config["days"] = get_number("> ")
+
+
+# SSH key
+print("\nEnter ssh key to add\n")
+config["ssh_key"] = input("> ")
+
+print("\nConfiguring mediums for contact when the master password is entered.")
+
+# Telegram
+print("\nDo you want to enable Telegram messages?\n")
+config["telegram"] = {}
+tg_enable = get_boolean("Y/n ", True)
+config["telegram"]["enabled"] = tg_enable
+
+if tg_enable:
+    print("\nEnter bot token\n")
+    config["telegram"]["bot_token"] = input("> ")
+    print("\nEnter userid\n")
+    config["telegram"]["user_id"] = get_number("> ")
+
+print("\nStoring config.")
+with open('config.json', 'w') as f:
+    json.dump(config, f)
+print("Stored config.")