api/dns: init

1 files changed, 64 insertions, 0 deletions

diff --git a/api/dns.go b/api/dns.go
new file mode 100644
index 0000000..f8d345c
--- /dev/null
+++ b/api/dns.go
@@ -0,0 +1,64 @@
+package api
+
+import (
+	"encoding/json"
+	"log"
+	"net"
+
+	"sinanmohd.com/redq/dns"
+)
+
+type DnsResp map[string]string
+
+func handleDnsBlock(conn net.Conn, d *dns.Dns, domains []string) {
+	resp := make(DnsResp)
+
+	for _, domain := range domains {
+		err := d.Block(domain)
+		if err != nil {
+			resp[domain] = err.Error()
+		} else {
+			resp[domain] = "blocked"
+		}
+	}
+
+	buf, err := json.Marshal(resp)
+	if err != nil {
+		log.Printf("marshaling json: %s", err)
+		return
+	}
+
+	conn.Write(buf)
+}
+
+func handleDnsUnblock(conn net.Conn, d *dns.Dns, domains []string) {
+	resp := make(DnsResp)
+
+	for _, domain := range domains {
+		err := d.Unblock(domain)
+		if err != nil {
+			resp[domain] = err.Error()
+		} else {
+			resp[domain] = "unblocked"
+		}
+	}
+
+	buf, err := json.Marshal(resp)
+	if err != nil {
+		log.Printf("marshaling json: %s", err)
+		return
+	}
+
+	conn.Write(buf)
+}
+
+func handleDns(conn net.Conn, d *dns.Dns, domains []string, action string) {
+	switch action {
+	case "block":
+		handleDnsBlock(conn, d, domains)
+	case "unblock":
+		handleDnsUnblock(conn, d, domains)
+	default:
+		log.Printf("handling dns: invalid action '%s'", action)
+	}
+}