This commit addresses the issue where HTTP-based cameras (JPEG/MJPEG) were not being
discovered due to incomplete authentication variant generation.
Changes:
- Builder now generates 4 authentication variants for each HTTP/HTTPS URL:
1. No authentication (for open cameras)
2. Basic Auth only (embedded credentials in URL)
3. Query parameters only (user=X&pwd=Y)
4. Basic Auth + Query parameters (combined approach)
- Scanner updated to use BuildURLsFromEntry instead of BuildURL for popular patterns,
ensuring all authentication variants are tested
- Preserved existing query parameter values (e.g., channel=1 remains unchanged)
This fix enables discovery of cameras that require different authentication methods,
including those that only accept Basic Auth headers, query parameters, or combinations.
Tested with ZOSI ZG23213M camera - increased discovery from 0 to 9 working streams.
eduard256
18aaf07eca