From c3e442d4974f96264264cca2738570535637936c Mon Sep 17 00:00:00 2001
From: postmannen <postmannen@gmail.com>
Date: Sat, 21 May 2022 07:09:35 +0200
Subject: [PATCH] Added initial REQ AclExport

---
 processes.go    |  8 ++++++
 requests.go     |  5 ++++
 requests_acl.go | 73 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 86 insertions(+)

diff --git a/processes.go b/processes.go
index fb00d20..05860c7 100644
--- a/processes.go
+++ b/processes.go
@@ -182,6 +182,7 @@ func (p *processes) Start(proc process) {
 		proc.startup.subREQAclGroupCommandsAddCommand(proc)
 		proc.startup.subREQAclGroupCommandsDeleteCommand(proc)
 		proc.startup.subREQAclGroupCommandsDeleteGroup(proc)
+		proc.startup.subREQAclExport(proc)
 	}
 
 	if proc.configuration.StartSubREQPublicKeysToNode {
@@ -447,6 +448,13 @@ func (s startup) subREQAclGroupCommandsDeleteGroup(p process) {
 	go proc.spawnWorker()
 }
 
+func (s startup) subREQAclExport(p process) {
+	log.Printf("Starting Acl export subscriber: %#v\n", p.node)
+	sub := newSubject(REQAclExport, string(p.node))
+	proc := newProcess(p.ctx, s.server, sub, processKindSubscriber, nil)
+	go proc.spawnWorker()
+}
+
 func (s startup) subREQToConsole(p process) {
 	log.Printf("Starting Text To Console subscriber: %#v\n", p.node)
 	sub := newSubject(REQToConsole, string(p.node))
diff --git a/requests.go b/requests.go
index e4baf0b..7fcf395 100644
--- a/requests.go
+++ b/requests.go
@@ -144,6 +144,8 @@ const (
 	REQAclGroupCommandsDeleteCommand = "REQAclGroupCommandsDeleteCommand"
 	// REQAclGroupCommandsDeleteGroup
 	REQAclGroupCommandsDeleteGroup = "REQAclGroupCommandsDeleteGroup"
+	// REQAclExport
+	REQAclExport = "REQAclExport"
 )
 
 // The mapping of all the method constants specified, what type
@@ -266,6 +268,9 @@ func (m Method) GetMethodsAvailable() MethodsAvailable {
 			REQAclGroupCommandsDeleteGroup: methodREQAclGroupCommandsDeleteGroup{
 				event: EventACK,
 			},
+			REQAclExport: methodREQAclExport{
+				event: EventACK,
+			},
 		},
 	}
 
diff --git a/requests_acl.go b/requests_acl.go
index cfd696f..aab2eac 100644
--- a/requests_acl.go
+++ b/requests_acl.go
@@ -633,3 +633,76 @@ func (m methodREQAclGroupCommandsDeleteGroup) handler(proc process, message Mess
 	ackMsg := []byte("confirmed from: " + node + ": " + fmt.Sprint(message.ID))
 	return ackMsg, nil
 }
+
+// ---
+
+type methodREQAclExport struct {
+	event Event
+}
+
+func (m methodREQAclExport) getKind() Event {
+	return m.event
+}
+
+func (m methodREQAclExport) handler(proc process, message Message, node string) ([]byte, error) {
+	inf := fmt.Errorf("<--- methodREQAclExport received from: %v, containing: %v", message.FromNode, message.MethodArgs)
+	proc.errorKernel.logConsoleOnlyIfDebug(inf, proc.configuration)
+
+	proc.processes.wg.Add(1)
+	go func() {
+		defer proc.processes.wg.Done()
+
+		// switch {
+		// case len(message.MethodArgs) < 1:
+		// 	er := fmt.Errorf("error: methodREQAclImport: got <1 number methodArgs, want 1")
+		// 	proc.errorKernel.errSend(proc, message, er)
+		//
+		// 	return
+		// }
+
+		// Get a context with the timeout specified in message.MethodTimeout.
+		ctx, cancel := getContextForMethodTimeout(proc.ctx, message)
+
+		outCh := make(chan []byte)
+		errCh := make(chan error)
+
+		proc.processes.wg.Add(1)
+		go func() {
+			defer proc.processes.wg.Done()
+
+			out, err := proc.centralAuth.accessLists.exportACLs()
+			if err != nil {
+				errCh <- fmt.Errorf("error: methodREQAclExport failed: %v", err)
+				return
+			}
+
+			// outString := fmt.Sprintf("Exported acls sent from: %v\n", message.FromNode)
+			// out := []byte(outString)
+
+			select {
+			case outCh <- out:
+			case <-ctx.Done():
+				return
+			}
+		}()
+
+		select {
+		case err := <-errCh:
+			proc.errorKernel.errSend(proc, message, err)
+
+		case <-ctx.Done():
+			cancel()
+			er := fmt.Errorf("error: methodREQAclExport: method timed out: %v", message.MethodArgs)
+			proc.errorKernel.errSend(proc, message, er)
+
+		case out := <-outCh:
+			// Prepare and queue for sending a new message with the output
+			// of the action executed.
+			newReplyMessage(proc, message, out)
+		}
+
+	}()
+
+	ackMsg := []byte("confirmed from: " + node + ": " + fmt.Sprint(message.ID))
+	return ackMsg, nil
+}