Check for allowed HTTP GET method before parsing anchors in HTML file contents.

doc/changelog.txt

@@ -12,6 +12,9 @@ Fixes:
   remove whitespace.
 - checking: Make sure the check for external domain is done after all
   HTTP redirections.
+- checking: Check for allowed content read before trying to
+  parse anchors in HTML file.
+  Closes: SF bug #3110569
 
 Changes:
 - cmdline: Don't log a warning if URL has been redirected.

linkcheck/checker/httpurl.py

@@ -598,15 +598,23 @@ class HttpUrl (internpaturl.InternPatternUrl, proxysupport.ProxySupport):
         return True
 
     def set_title_from_content (self):
+        """Check if it's allowed to read content before execution."""
         if self.method_get_allowed:
             super(HttpUrl, self).set_title_from_content()
 
+    def get_anchors (self):
+        """Check if it's allowed to read content before execution."""
+        if self.method_get_allowed:
+            super(HttpUrl, self).get_anchors()
+
     def content_allows_robots (self):
+        """Check if it's allowed to read content before execution."""
         if not self.method_get_allowed:
             return False
         return super(HttpUrl, self).content_allows_robots()
 
     def check_warningregex (self):
+        """Check if it's allowed to read content before execution."""
         if self.method_get_allowed:
             super(HttpUrl, self).check_warningregex()