add get command to fetch resources

get.go

@@ -0,0 +1,109 @@
+package main
+
+import (
+	"encoding/json"
+	"errors"
+	"flag"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/micromdm/dep"
+)
+
+func getResource(args []string) error {
+	if len(args) < 1 {
+		return errors.New("get requires at least one resource name")
+	}
+
+	var run func([]string) error
+	switch strings.ToLower(args[0]) {
+	case "dep":
+		run = getDep
+	default:
+		usage()
+		os.Exit(1)
+	}
+
+	if err := run(args[1:]); err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+
+	return nil
+}
+
+func getDep(args []string) error {
+	if len(args) < 1 {
+		return errors.New("get dep requires at least one resource name")
+	}
+	sm := &config{}
+	sm.setupBolt()
+	client, err := sm.depClient()
+	if err != nil {
+		return err
+	}
+	var run func(dep.Client, []string) error
+	switch strings.ToLower(args[0]) {
+	case "account-info":
+		acc, err := client.Account()
+		if err != nil {
+			return err
+		}
+		enc := json.NewEncoder(os.Stdout)
+		enc.SetIndent("", "  ")
+		err = enc.Encode(acc)
+		return err
+	case "device":
+		run = getDepDevice
+	case "profile":
+		run = getDepProfile
+	}
+
+	if err := run(client, args[1:]); err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		os.Exit(1)
+	}
+	return nil
+}
+
+func getDepProfile(client dep.Client, args []string) error {
+	flagset := flag.NewFlagSet("profile", flag.ExitOnError)
+	var (
+		flUUID = flagset.String("uuid", "", "profile uuid")
+	)
+	if err := flagset.Parse(args); err != nil {
+		return err
+	}
+
+	profile, err := client.FetchProfile(*flUUID)
+	if err != nil {
+		return err
+	}
+	enc := json.NewEncoder(os.Stdout)
+	enc.SetIndent("", "  ")
+	err = enc.Encode(profile)
+	return err
+}
+
+func getDepDevice(client dep.Client, args []string) error {
+	flagset := flag.NewFlagSet("device", flag.ExitOnError)
+	var (
+		flSerial = flagset.String("serial", "", "device serial number")
+	)
+	if err := flagset.Parse(args); err != nil {
+		return err
+	}
+
+	resp, err := client.DeviceDetails([]string{*flSerial})
+	if err != nil {
+		return err
+	}
+	if dev, ok := resp.Devices[*flSerial]; ok && dev.SerialNumber != "" {
+		enc := json.NewEncoder(os.Stdout)
+		enc.SetIndent("", "  ")
+		err = enc.Encode(dev)
+		return err
+	}
+	return nil
+}

main.go

@@ -25,6 +25,8 @@ func main() {
 		run = serve
 	case "deptoken":
 		run = depToken
+	case "get":
+		run = getResource
 	default:
 		usage()
 		os.Exit(1)
@@ -41,6 +43,7 @@ func usage() error {
 
 Available Commands:
 	serve
+	get
 	deptoken
 	version
 

serve.go

@@ -432,11 +432,10 @@ func topicFromCert(cert *x509.Certificate) (string, error) {
 // the CA.
 const scepCACertName = "/var/db/micromdm/SCEPCACert.pem"
 
-func (c *config) setupDEPSync() {
+func (c *config) depClient() (dep.Client, error) {
 	if c.err != nil {
-		return
+		return nil, c.err
 	}
-
 	// depsim config
 	depsim := true
 	conf := &dep.Config{
@@ -472,8 +471,7 @@ func (c *config) setupDEPSync() {
 		return nil
 	})
 	if err != nil {
-		c.err = err
-		return
+		return nil, err
 	}
 
 	depServerURL := "https://mdmenrollment.apple.com"
@@ -481,6 +479,19 @@ func (c *config) setupDEPSync() {
 		depServerURL = "http://dep.micromdm.io:9000"
 	}
 	client, err := dep.NewClient(conf, dep.ServerURL(depServerURL))
+	if err != nil {
+		return nil, err
+	}
+
+	return client, nil
+}
+
+func (c *config) setupDEPSync() {
+	if c.err != nil {
+		return
+	}
+
+	client, err := c.depClient()
 	if err != nil {
 		c.err = err
 		return