1 files changed, 35 insertions, 0 deletions
diff --git a/internal/links/find.go b/internal/links/find.go
new file mode 100644
index 0000000..33b24d5
--- /dev/null
+++ b/internal/links/find.go
@@ -0,0 +1,35 @@
+package links
+
+import (
+	"io"
+
+	"golang.org/x/net/html"
+	"golang.org/x/net/html/atom"
+)
+
+func find(htmlInput io.Reader) ([]string, error) {
+	doc, err := html.Parse(htmlInput)
+	if err != nil {
+		return nil, err
+	}
+
+	hrefs := findHrefs(doc)
+
+	return hrefs, nil
+}
+
+// findHrefs returns all link addresses inside doc.
+func findHrefs(doc *html.Node) []string {
+	var hrefs []string
+	for node := range doc.Descendants() {
+		if node.Type == html.ElementNode && node.DataAtom == atom.A {
+			for _, attr := range node.Attr {
+				if attr.Key == "href" {
+					hrefs = append(hrefs, attr.Val)
+				}
+			}
+		}
+	}
+
+	return hrefs
+}