initial commit

cmd/bind/build-bind.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"bytes"
+	"log"
+	"os"
+
+	"text/template"
+)
+
+func buildBindResponsePolicyFile() {
+	var (
+		output bytes.Buffer
+	)
+
+	outputTemplate := `{{- $domain := .Domain -}}
+$TTL {{ or .TTL "1h" }}
+@	IN	SOA	{{ $domain }}.	{{ or .Email "domain-admin" }}.	(
+			{{ or .Timestamp "0000000000" }}	; Serial
+			{{ or .Refresh "1h" }}		; Refresh
+			{{ or .Retry "30m" }}		; Retry
+			{{ or .Expire "1w" }}		; Expire
+			{{ or .Minimum "1h" }}		; Minimum
+)
+
+;
+;	Name Servers
+;
+{{- range .NameServers }}
+			IN	NS	{{ . }}.
+{{- end }}
+
+;
+;	Addresses
+;
+{{- range .BadDomains }}
+{{ . }}		IN	CNAME	blocked.{{ $domain }}.
+{{- end }}`
+
+	t, err := template.New("response-policy-zone").Parse(outputTemplate)
+	if err != nil {
+		log.Fatalf("[FATAL] Unable to parse template (%s): %v\n", "response-policy-zone", err)
+	}
+
+	if err := t.Execute(&output, config.NamedConfig); err != nil {
+		log.Fatalf("[FATAL] Unable to generate template output: %v\n", err)
+	}
+
+	fileWriter, err := os.Create(config.BindOutputFileName)
+	if err != nil {
+		log.Fatalf("[FATAL] Unable to open file (%s) for writing: %v", config.BindOutputFileName, err)
+	}
+	defer fileWriter.Close()
+
+	bytesWritten, err := fileWriter.Write(output.Bytes())
+	if err != nil {
+		log.Fatalf("[FATAL] Unable to write to file (%s): %v", config.BindOutputFileName, err)
+	}
+
+	log.Printf("[DEBUG] Wrote %d bytes to %s.\n", bytesWritten, config.BindOutputFileName)
+}