initial commit

cmd/bind/parsing-simple.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"bufio"
+	"bytes"
+	"regexp"
+	"strings"
+
+	"github.com/asaskevich/govalidator"
+)
+
+func parseSimple(data []byte) []string {
+	var domains []string
+
+	// convert data to reader for line-by-line reading
+	r := bytes.NewReader(data)
+
+	// process combined files line-by-line
+	scanner := bufio.NewScanner(r)
+	for scanner.Scan() {
+		line := scanner.Text()
+
+		// skip lines where the first non-whitespace character is '#' or '//'
+		if regexp.MustCompile(`^(\s+)?(#|\/\/)`).MatchString(line) {
+			continue
+		}
+
+		// split line by whitespace
+		lineItems := strings.Fields(line)
+
+		if len(lineItems) >= 1 {
+			// the second item is the domain, check if its valid and add it
+			if govalidator.IsDNSName(lineItems[0]) {
+				domains = append(domains, lineItems[0])
+			}
+		}
+	}
+
+	return domains
+}