docs: add dnst-scanner resolver fetcher issue draft

crazydi4mond · crazydi4mond · commit 4f413613d1ae · 2026-01-26T21:31:51.000+01:00
diff --git a/issues/dnst-scanner-02-resolver-fetcher.md b/issues/dnst-scanner-02-resolver-fetcher.md
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+# Resolver List Fetcher
+
+**Depends on:** #1 (Project Scaffolding)
+
+## Summary
+
+Fetch raw resolver IP list from ir-resolvers repository or accept custom input file.
+
+**Motivation:** Scanner needs a source of resolver IPs to test. Default source is ir-resolvers repo, but custom lists should be supported for flexibility.
+
+## Design
+
+- Fetch from GitHub: `https://raw.githubusercontent.com/net2share/ir-resolvers/main/resolvers.txt`
+- Support custom input file via `--input` flag
+- Env var override for default source URL: `DNST_SCANNER_RESOLVERS_URL`
+- Env var override for local file path: `DNST_SCANNER_RESOLVERS_PATH` (skips download)
+- Parse IP list (one IP per line, skip comments/empty lines)
+- Validate IP format before passing to scanner
