Check if settings.json Values are valid

1 files changed, 50 insertions, 0 deletions

diff --git a/manage.py b/manage.py
index 612f78c..60d2f53 100644
--- a/manage.py
+++ b/manage.py
@@ -4,6 +4,9 @@
 
 import sys
 import os
+import re
+import pwd
+import grp
 import subprocess
 import json
 import jinja2
@@ -22,6 +25,53 @@ def read_settings():
         settings = settings.read()
 
     settings = json.loads(settings)
+
+    # check for valid project name
+    if not re.match(r"\A[a-z]+\Z", settings["project_name"]):
+        print("Please provide a project_name in settings.json containing only characters from a to z in lower case")
+        sys.exit(1)
+
+    # check for valid project description
+    if not re.match(r"\A[a-z|A-Z|0-9| ]+\Z", settings["project_description"]):
+        print("Please provide a project description in settings.json containing only characters from a to z and numbers")
+        sys.exit(1)
+
+    # check for valid webroot path
+    if not re.match(r"\A(/[a-z|A-Z|0-9|_|-]*)+\Z", settings["webroot"]):
+        print("Please select an absolute and valid path as webroot in settings.json")
+        sys.exit(1)
+
+    # check for valid framework selection
+    if not settings["framework"] in [None, "flask", "actix"]:
+        print("Unknown framework in settings.json")
+        sys.exit(1)
+
+    # check for valid framework port
+    if not int(settings["framework_port"]) >= 1:
+        print("Please select a valid framework_port in settings.json")
+        sys.exit(1)
+
+    # check for valid framework bind address
+    if not re.match(r"\A([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])(\.([01]?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])){3}\Z", settings["framework_bind"]):
+        print("Please provide a valid IP address as framework_bind in settings.json")
+        sys.exit(1)
+
+    # check for valid user
+    users = []
+    for user in pwd.getpwall():
+        users.append(user[0])  # append just the name
+    if not settings["user"] in users:
+        print("User '{}' does not exist on this system. Please select a valid user in settings.json".format(settings["user"]))
+        sys.exit(1)
+
+    # check for valid group
+    groups = []
+    for group in grp.getgrall():
+        groups.append(group[0])  # append just the name
+    if not settings["group"] in groups:
+        print("Group '{}' does not exist on this system. Please select a valid group in settings.json".format(settings["group"]))
+        sys.exit(1)
+
     return settings