cmd/resolver: implement command to disable or enable hosts in block.d

The following command enable specific hosts in block.d by name:

  resolver block.d enable <name>

and the following command disable it

  resolver block.d disable <name>

5 files changed, 94 insertions, 4 deletions

diff --git a/_doc/resolver.adoc b/_doc/resolver.adoc
index d259983..d4eb5e9 100644
--- a/_doc/resolver.adoc
+++ b/_doc/resolver.adoc
@@ -94,6 +94,18 @@ List of valid types,
 The "class" parameter is optional, its either IN (default), CS, or HS.
 --
 
+block.d disable <name>::
++
+--
+Disable specific hosts on block.d.
+--
+
+block.d enable <name>::
++
+--
+Enable specific hosts on block.d.
+--
+
 block.d update <name>::
 +
 --
diff --git a/_sys/usr/share/man/man1/resolver.1.gz b/_sys/usr/share/man/man1/resolver.1.gz
index 78211df..635cd25 100644
--- a/_sys/usr/share/man/man1/resolver.1.gz
+++ b/_sys/usr/share/man/man1/resolver.1.gz
diff --git a/cmd/rescached/main.go b/cmd/rescached/main.go
index 069d126..52b9a44 100644
--- a/cmd/rescached/main.go
+++ b/cmd/rescached/main.go
@@ -108,7 +108,7 @@ func debugRuntime() {
 func watchWww(env *rescached.Environment, running chan bool) {
 	var (
 		logp      = "watchWww"
-		tick      = time.NewTicker(5 * time.Second)
+		tick      = time.NewTicker(3 * time.Second)
 		isRunning = true
 
 		dw       *memfs.DirWatcher
diff --git a/cmd/resolver/main.go b/cmd/resolver/main.go
index a3ecbe5..0678b21 100644
--- a/cmd/resolver/main.go
+++ b/cmd/resolver/main.go
@@ -20,9 +20,11 @@ const (
 	cmdEnv    = "env"
 	cmdQuery  = "query"
 
-	subCmdSearch = "search"
-	subCmdRemove = "remove"
-	subCmdUpdate = "update"
+	subCmdEnable  = "enable"
+	subCmdDisable = "disable"
+	subCmdRemove  = "remove"
+	subCmdSearch  = "search"
+	subCmdUpdate  = "update"
 )
 
 func main() {
@@ -68,6 +70,26 @@ func main() {
 		subCmd = strings.ToLower(args[0])
 
 		switch subCmd {
+		case subCmdDisable:
+			args = args[1:]
+			if len(args) == 0 {
+				log.Fatalf("resolver: %s %s: missing argument", rsol.cmd, subCmd)
+			}
+			err = rsol.blockdDisable(args[0])
+			if err != nil {
+				log.Fatalf("resolver: %s %s: %s", rsol.cmd, subCmd, err)
+			}
+
+		case subCmdEnable:
+			args = args[1:]
+			if len(args) == 0 {
+				log.Fatalf("resolver: %s %s: missing argument", rsol.cmd, subCmd)
+			}
+			err = rsol.blockdEnable(args[0])
+			if err != nil {
+				log.Fatalf("resolver: %s %s: %s", rsol.cmd, subCmd, err)
+			}
+
 		case subCmdUpdate:
 			args = args[1:]
 			if len(args) == 0 {
@@ -199,6 +221,14 @@ query <domain / ip-address> [type] [class]
 	Valid class are either IN, CS, HS.
 	Default value is IN.
 
+block.d disable <name>
+
+	Disable specific hosts on block.d.
+
+block.d enable <name>
+
+	Enable specific hosts on block.d.
+
 block.d update <name>
 
 	Fetch the latest hosts file from remote block.d URL defined by
diff --git a/cmd/resolver/resolver.go b/cmd/resolver/resolver.go
index 76c5a13..bdebe0d 100644
--- a/cmd/resolver/resolver.go
+++ b/cmd/resolver/resolver.go
@@ -45,6 +45,54 @@ type resolver struct {
 	insecure bool
 }
 
+// blockdDisable disable specific hosts on block.d.
+func (rsol *resolver) blockdDisable(name string) (err error) {
+	var (
+		resc = rsol.newRescachedClient()
+
+		hb     interface{}
+		hbjson []byte
+	)
+
+	hb, err = resc.BlockdDisable(name)
+	if err != nil {
+		return err
+	}
+
+	hbjson, err = json.MarshalIndent(hb, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(string(hbjson))
+
+	return nil
+}
+
+// blockdEnable enable specific hosts on block.d.
+func (rsol *resolver) blockdEnable(name string) (err error) {
+	var (
+		resc = rsol.newRescachedClient()
+
+		hb     interface{}
+		hbjson []byte
+	)
+
+	hb, err = resc.BlockdEnable(name)
+	if err != nil {
+		return err
+	}
+
+	hbjson, err = json.MarshalIndent(hb, "", "  ")
+	if err != nil {
+		return err
+	}
+
+	fmt.Println(string(hbjson))
+
+	return nil
+}
+
 // blockdUpdate fetch the latest hosts file from remote block.d URL defined by
 // its name.
 func (rsol *resolver) blockdUpdate(blockdName string) (err error) {