From: Michael Tremer <michael.tremer@ipfire.org>
Date: Mon, 2 Mar 2026 17:17:49 +0000 (+0000)
Subject: sources: Fail if we are trying to import some HTML
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=680412224feb9dcd3581dd456664835f08b977f2;p=dbl.git

sources: Fail if we are trying to import some HTML

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/dbl/sources.py b/src/dbl/sources.py
index 8f9bfb4..1094886 100644
--- a/src/dbl/sources.py
+++ b/src/dbl/sources.py
@@ -247,7 +247,14 @@ class Source(sqlmodel.SQLModel, database.BackendMixin, table=True):
 
 							# Detect the format if still unknown
 							if format is None:
-								format = self._detect_format(line)
+								try:
+									format = self._detect_format(line)
+
+								# Log a warning if we have detected some invalid format
+								except Exception as e:
+									log.warning("Format detection failed for %s: %s" % (self.url, e))
+
+									return False
 
 							# Process the line according to its format
 							match format:
@@ -454,6 +461,10 @@ class Source(sqlmodel.SQLModel, database.BackendMixin, table=True):
 		elif util.is_fqdn(line):
 			return Format.PLAIN
 
+		# Fail if we have received a HTML document
+		if line.startswith("<"):
+			raise ValueError("Source seems to be in HTML format")
+
 		# The format is (still?) unknown
 		return None