Implement syncthing-cli

client.go

+package main
+
+import (
+	"bytes"
+	"github.com/AudriusButkevicius/cli"
+	"net/http"
+	"strings"
+)
+
+type APIClient struct {
+	httpClient http.Client
+	endpoint   string
+	apikey     string
+	username   string
+	password   string
+	csrf       string
+}
+
+var instance *APIClient
+
+func getClient(c *cli.Context) *APIClient {
+	if instance != nil {
+		return instance
+	}
+	endpoint := c.GlobalString("endpoint")
+	if !strings.HasPrefix(endpoint, "http") {
+		endpoint = "http://" + endpoint
+	}
+
+	client := APIClient{
+		httpClient: http.Client{},
+		endpoint:   endpoint,
+		apikey:     c.GlobalString("apikey"),
+		username:   c.GlobalString("username"),
+		password:   c.GlobalString("password"),
+	}
+
+	if client.apikey == "" {
+		request, err := http.NewRequest("GET", client.endpoint, nil)
+		die(err)
+		response := client.handleRequest(request)
+		for _, item := range response.Cookies() {
+			if item.Name == "CSRF-Token" {
+				client.csrf = item.Value
+				goto csrffound
+			}
+		}
+		die("Failed to get CSRF token")
+	csrffound:
+	}
+	instance = &client
+	return &client
+}
+
+func (client *APIClient) handleRequest(request *http.Request) *http.Response {
+	if client.apikey != "" {
+		request.Header.Set("X-API-Key", client.apikey)
+	}
+	if client.username != "" || client.password != "" {
+		request.SetBasicAuth(client.username, client.password)
+	}
+	if client.csrf != "" {
+		request.Header.Set("X-CSRF-Token", client.csrf)
+	}
+
+	response, err := client.httpClient.Do(request)
+	die(err)
+
+	if response.StatusCode == 404 {
+		die("Invalid endpoint or API call")
+	} else if response.StatusCode == 401 {
+		die("Invalid username or password")
+	} else if response.StatusCode == 403 {
+		if client.apikey == "" {
+			die("Invalid CSRF token")
+		}
+		die("Invalid API key")
+	} else if response.StatusCode != 200 {
+		body := strings.TrimSpace(string(responseToBArray(response)))
+		if body != "" {
+			die(body)
+		}
+		die("Unknown HTTP status returned: " + response.Status)
+	}
+	return response
+}
+
+func httpGet(c *cli.Context, url string) *http.Response {
+	client := getClient(c)
+	request, err := http.NewRequest("GET", client.endpoint+"/rest/"+url, nil)
+	die(err)
+	return client.handleRequest(request)
+}
+
+func httpPost(c *cli.Context, url string, body string) *http.Response {
+	client := getClient(c)
+	request, err := http.NewRequest("POST", client.endpoint+"/rest/"+url, bytes.NewBufferString(body))
+	die(err)
+	return client.handleRequest(request)
+}

cmd_errors.go

+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/AudriusButkevicius/cli"
+	"strings"
+)
+
+var errorCommand = cli.Command{
+	Name:     "errors",
+	HideHelp: true,
+	Usage:    "Error command group",
+	Subcommands: []cli.Command{
+		{
+			Name:     "show",
+			Usage:    "Show pending errors",
+			Requires: &cli.Requires{},
+			Action: func(c *cli.Context) {
+				response := httpGet(c, "errors")
+				var data []map[string]interface{}
+				json.Unmarshal(responseToBArray(response), &data)
+				writer := newTableWriter()
+				for _, item := range data {
+					time := item["Time"].(string)[:19]
+					time = strings.Replace(time, "T", " ", 1)
+					err := item["Error"].(string)
+					err = strings.TrimSpace(err)
+					fmt.Fprintln(writer, time+":\t"+err)
+				}
+				writer.Flush()
+			},
+		},
+		{
+			Name:     "push",
+			Usage:    "Push an error to active clients",
+			Requires: &cli.Requires{"error message..."},
+			Action: func(c *cli.Context) {
+				err := ""
+				for _, item := range c.Args() {
+					err += " " + item
+				}
+				response := httpPost(c, "error", strings.TrimSpace(err))
+				if response.StatusCode != 200 {
+					err = fmt.Sprint("Failed to push error\nStatus code: ", response.StatusCode)
+					body := string(responseToBArray(response))
+					if body != "" {
+						err += "\nBody: " + body
+					}
+					die(err)
+				}
+			},
+		},
+		{
+			Name:     "clear",
+			Usage:    "Clear pending errors",
+			Requires: &cli.Requires{},
+			Action:   wrappedHttpPost("error/clear"),
+		},
+	},
+}

cmd_general.go

+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/AudriusButkevicius/cli"
+)
+
+var generalCommands = []cli.Command{
+	{
+		Name:     "id",
+		Usage:    "Get ID of the Syncthing client",
+		Requires: &cli.Requires{},
+		Action: func(c *cli.Context) {
+			fmt.Println(getMyID(c))
+		},
+	},
+	{
+		Name:     "status",
+		Usage:    "Configuration status, whether or not a restart is required for changes to take effect",
+		Requires: &cli.Requires{},
+		Action: func(c *cli.Context) {
+			response := httpGet(c, "config/sync")
+			status := make(map[string]interface{})
+			json.Unmarshal(responseToBArray(response), &status)
+			if status["configInSync"] != true {
+				die("Config out of sync")
+			}
+			fmt.Println("Config in sync")
+		},
+	},
+	{
+		Name:     "restart",
+		Usage:    "Restart syncthing",
+		Requires: &cli.Requires{},
+		Action:   wrappedHttpPost("restart"),
+	},
+	{
+		Name:     "shutdown",
+		Usage:    "Shutdown syncthing",
+		Requires: &cli.Requires{},
+		Action:   wrappedHttpPost("shutdown"),
+	},
+	{
+		Name:     "reset",
+		Usage:    "Reset syncthing deleting all repositories and nodes",
+		Requires: &cli.Requires{},
+		Action:   wrappedHttpPost("reset"),
+	},
+	{
+		Name:     "upgrade",
+		Usage:    "Upgrade syncthing (if a newer version is available)",
+		Requires: &cli.Requires{},
+		Action:   wrappedHttpPost("upgrade"),
+	},
+	{
+		Name:     "version",
+		Usage:    "Syncthing client version",
+		Requires: &cli.Requires{},
+		Action: func(c *cli.Context) {
+			response := httpGet(c, "version")
+			output := string(responseToBArray(response))
+			fmt.Println(output)
+		},
+	},
+}

cmd_gui.go

+package main
+
+import (
+	"fmt"
+	"github.com/AudriusButkevicius/cli"
+	"strings"
+)
+
+var guiCommand = cli.Command{
+	Name:     "gui",
+	HideHelp: true,
+	Usage:    "GUI command group",
+	Subcommands: []cli.Command{
+		{
+			Name:     "dump",
+			Usage:    "Show all GUI configuration settings",
+			Requires: &cli.Requires{},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c).GUI
+				writer := newTableWriter()
+				fmt.Fprintf(writer, "Enabled:\t%t\t(enabled)\n", cfg.Enabled)
+				fmt.Fprintf(writer, "Use HTTPS:\t%t\t(tls)\n", cfg.UseTLS)
+				fmt.Fprintf(writer, "Listen Addresses:\t%s\t(address)\n", cfg.Address)
+				if cfg.User != "" {
+					fmt.Fprintf(writer, "Authentication User:\t%s\t(username)\n", cfg.User)
+					fmt.Fprintf(writer, "Authentication Password:\t%s\t(password)\n", cfg.Password)
+				}
+				if cfg.APIKey != "" {
+					fmt.Fprintf(writer, "API Key:\t%s\t(apikey)\n", cfg.APIKey)
+				}
+				writer.Flush()
+			},
+		},
+		{
+			Name:     "get",
+			Usage:    "Get a GUI configuration setting",
+			Requires: &cli.Requires{"setting"},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c).GUI
+				arg := c.Args()[0]
+				switch strings.ToLower(arg) {
+				case "enabled":
+					fmt.Println(cfg.Enabled)
+				case "tls":
+					fmt.Println(cfg.UseTLS)
+				case "address":
+					fmt.Println(cfg.Address)
+				case "user":
+					if cfg.User != "" {
+						fmt.Println(cfg.User)
+					}
+				case "password":
+					if cfg.User != "" {
+						fmt.Println(cfg.Password)
+					}
+				case "apikey":
+					if cfg.APIKey != "" {
+						fmt.Println(cfg.APIKey)
+					}
+				default:
+					die("Invalid setting: " + arg + "\nAvailable settings: enabled, tls, address, user, password, apikey")
+				}
+			},
+		},
+		{
+			Name:     "set",
+			Usage:    "Set a GUI configuration setting",
+			Requires: &cli.Requires{"setting", "value"},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c)
+				arg := c.Args()[0]
+				val := c.Args()[1]
+				switch strings.ToLower(arg) {
+				case "enabled":
+					cfg.GUI.Enabled = parseBool(val)
+				case "tls":
+					cfg.GUI.UseTLS = parseBool(val)
+				case "address":
+					validAddress(val)
+					cfg.GUI.Address = val
+				case "user":
+					cfg.GUI.User = val
+				case "password":
+					cfg.GUI.Password = val
+				case "apikey":
+					cfg.GUI.APIKey = val
+				default:
+					die("Invalid setting: " + arg + "\nAvailable settings: enabled, tls, address, user, password, apikey")
+				}
+				setConfig(c, cfg)
+			},
+		},
+		{
+			Name:     "unset",
+			Usage:    "Unset a GUI configuration setting",
+			Requires: &cli.Requires{"setting"},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c)
+				arg := c.Args()[0]
+				switch strings.ToLower(arg) {
+				case "user":
+					cfg.GUI.User = ""
+				case "password":
+					cfg.GUI.Password = ""
+				case "apikey":
+					cfg.GUI.APIKey = ""
+				default:
+					die("Invalid setting: " + arg + "\nAvailable settings: user, password, apikey")
+				}
+				setConfig(c, cfg)
+			},
+		},
+	},
+}

cmd_nodes.go

+package main
+
+import (
+	"fmt"
+	"github.com/AudriusButkevicius/cli"
+	"github.com/calmh/syncthing/config"
+	"strings"
+)
+
+var nodeCommand = cli.Command{
+	Name:     "nodes",
+	HideHelp: true,
+	Usage:    "Node command group",
+	Subcommands: []cli.Command{
+		{
+			Name:     "list",
+			Usage:    "List registered nodes",
+			Requires: &cli.Requires{},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c)
+				first := true
+				writer := newTableWriter()
+				for _, node := range cfg.Nodes {
+					if !first {
+						fmt.Fprintln(writer)
+					}
+					fmt.Fprintln(writer, "ID:\t", node.NodeID, "\t")
+					fmt.Fprintln(writer, "Name:\t", node.Name, "\t(name)")
+					fmt.Fprintf(writer, "Address:\t")
+					for _, item := range node.Addresses {
+						fmt.Fprintf(writer, " %s", item)
+					}
+					fmt.Fprintln(writer, "\t(address)")
+					first = false
+				}
+				writer.Flush()
+			},
+		},
+		{
+			Name:     "add",
+			Usage:    "Add a new node",
+			Requires: &cli.Requires{"node id", "node name?"},
+			Action: func(c *cli.Context) {
+				nid := c.Args()[0]
+				id := parseNodeID(nid)
+
+				newNode := config.NodeConfiguration{
+					NodeID:    id,
+					Name:      nid,
+					Addresses: []string{"dynamic"},
+				}
+
+				if len(c.Args()) > 1 {
+					newNode.Name = c.Args()[1]
+				}
+
+				if len(c.Args()) > 2 {
+					addresses := c.Args()[2:]
+					for _, item := range addresses {
+						if item == "dynamic" {
+							continue
+						}
+						validAddress(item)
+					}
+					newNode.Addresses = addresses
+				}
+
+				cfg := getConfig(c)
+				for _, node := range cfg.Nodes {
+					if node.NodeID == id {
+						die("Node " + nid + " already exists")
+					}
+				}
+				cfg.Nodes = append(cfg.Nodes, newNode)
+				setConfig(c, cfg)
+			},
+		},
+		{
+			Name:     "remove",
+			Usage:    "Remove an existing node",
+			Requires: &cli.Requires{"node id"},
+			Action: func(c *cli.Context) {
+				nid := c.Args()[0]
+				id := parseNodeID(nid)
+				if nid == getMyID(c) {
+					die("Cannot remove yourself")
+				}
+				cfg := getConfig(c)
+				for i, node := range cfg.Nodes {
+					if node.NodeID == id {
+						last := len(cfg.Nodes) - 1
+						cfg.Nodes[i] = cfg.Nodes[last]
+						cfg.Nodes = cfg.Nodes[:last]
+						setConfig(c, cfg)
+						return
+					}
+				}
+				die("Node " + nid + " not found")
+			},
+		},
+		{
+			Name:     "get",
+			Usage:    "Get a property of a node",
+			Requires: &cli.Requires{"node id", "property"},
+			Action: func(c *cli.Context) {
+				nid := c.Args()[0]
+				id := parseNodeID(nid)
+				arg := c.Args()[1]
+				cfg := getConfig(c)
+				for _, node := range cfg.Nodes {
+					if node.NodeID != id {
+						continue
+					}
+					switch strings.ToLower(arg) {
+					case "name":
+						fmt.Println(node.Name)
+					case "address":
+						for _, address := range node.Addresses {
+							fmt.Println(address)
+						}
+					default:
+						die("Invalid property: " + arg + "\nAvailable properties: name, address")
+					}
+					return
+				}
+				die("Node " + nid + " not found")
+			},
+		},
+		{
+			Name:     "set",
+			Usage:    "Set a property of a node",
+			Requires: &cli.Requires{"node id", "property", "value..."},
+			Action: func(c *cli.Context) {
+				nid := c.Args()[0]
+				id := parseNodeID(nid)
+				arg := c.Args()[1]
+				config := getConfig(c)
+				for i, node := range config.Nodes {
+					if node.NodeID != id {
+						continue
+					}
+					switch strings.ToLower(arg) {
+					case "name":
+						config.Nodes[i].Name = strings.Join(c.Args()[2:], " ")
+					case "address":
+						for _, item := range c.Args()[2:] {
+							if item == "dynamic" {
+								continue
+							}
+							validAddress(item)
+						}
+						config.Nodes[i].Addresses = c.Args()[2:]
+					default:
+						die("Invalid property: " + arg + "\nAvailable properties: name, address")
+					}
+					setConfig(c, config)
+					return
+				}
+				die("Node " + nid + " not found")
+			},
+		},
+	},
+}

cmd_options.go

+package main
+
+import (
+	"fmt"
+	"github.com/AudriusButkevicius/cli"
+	"strings"
+)
+
+var optionsCommand = cli.Command{
+	Name:     "options",
+	HideHelp: true,
+	Usage:    "Options command group",
+	Subcommands: []cli.Command{
+		{
+			Name:     "dump",
+			Usage:    "Show all Syncthing option settings",
+			Requires: &cli.Requires{},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c).Options
+				writer := newTableWriter()
+
+				fmt.Fprint(writer, "Sync protocol listen addresses:\t")
+				for _, address := range cfg.ListenAddress {
+					fmt.Fprintf(writer, "%s ", address)
+				}
+				fmt.Fprintf(writer, "\t(address)\n")
+
+				fmt.Fprintf(writer, "Global discovery enabled:\t%t\t(globalannenabled)\n", cfg.GlobalAnnEnabled)
+				fmt.Fprintf(writer, "Global discovery server:\t%s\t(globalannserver)\n", cfg.GlobalAnnServer)
+
+				fmt.Fprintf(writer, "Local discovery enabled:\t%t\t(localannenabled)\n", cfg.LocalAnnEnabled)
+				fmt.Fprintf(writer, "Local discovery port:\t%d\t(localannport)\n", cfg.LocalAnnPort)
+
+				fmt.Fprintf(writer, "Maximum outstanding requests:\t%d\t(requests)\n", cfg.ParallelRequests)
+				fmt.Fprintf(writer, "Maximum file change rate in KiB/s:\t%d\t(maxchange)\n", cfg.MaxChangeKbps)
+				fmt.Fprintf(writer, "Outgoing rate limit in KiB/s:\t%d\t(maxsend)\n", cfg.MaxSendKbps)
+				fmt.Fprintf(writer, "Rescan interval in seconds:\t%d\t(rescan)\n", cfg.RescanIntervalS)
+				fmt.Fprintf(writer, "Reconnect interval in seconds:\t%d\t(reconnect)\n", cfg.ReconnectIntervalS)
+				fmt.Fprintf(writer, "Start browser:\t%t\t(browser)\n", cfg.StartBrowser)
+				fmt.Fprintf(writer, "Enable UPnP:\t%t\t(upnp)\n", cfg.UPnPEnabled)
+				fmt.Fprint(writer, "Anonymous usage reporting:\t")
+				switch cfg.URAccepted {
+				case -1:
+					fmt.Fprint(writer, "false")
+				case 0:
+					fmt.Fprint(writer, "undecided/false")
+				case 1:
+					fmt.Fprint(writer, "true")
+				default:
+					fmt.Fprint(writer, "unrecognized value")
+				}
+				fmt.Fprint(writer, "\t(reporting)\n")
+				writer.Flush()
+			},
+		},
+		{
+			Name:     "get",
+			Usage:    "Get a Syncthing option setting",
+			Requires: &cli.Requires{"setting"},
+			Action: func(c *cli.Context) {
+				cfg := getConfig(c).Options
+				arg := c.Args()[0]
+				switch strings.ToLower(arg) {
+				case "address":
+					for _, item := range cfg.ListenAddress {
+						fmt.Println(item)
+					}
+				case "globalannenabled":
+					fmt.Println(cfg.GlobalAnnEnabled)
+				case "globalannserver":
+					fmt.Println(cfg.GlobalAnnServer)
+				case "localannenabled":
+					fmt.Println(cfg.LocalAnnEnabled)
+				case "localannport":
+					fmt.Println(cfg.LocalAnnPort)
+				case "requests":
+					fmt.Println(cfg.ParallelRequests)
+				case "maxsend":
+					fmt.Println(cfg.MaxSendKbps)
+				case "maxchange":
+					fmt.Println(cfg.MaxChangeKbps)
+				case "rescan":
+					fmt.Println(cfg.RescanIntervalS)
+				case "reconnect":
+					fmt.Println(cfg.ReconnectIntervalS)
+				case "browser":
+					fmt.Println(cfg.StartBrowser)
+				case "upnp":
+					fmt.Println(cfg.UPnPEnabled)
+				case "reporting":
+					switch cfg.URAccepted {
+					case -1:
+						fmt.Println("false")
+					case 0:
+						fmt.Println("undecided/false")
+					case 1:
+						fmt.Println("true")
+					default:
+						fmt.Println("unknown")
+					}
+				default:
+					die("Invalid setting: " + arg + "\nAvailable settings: address, globalannenabled, globalannserver, localannenabled, localannport, requests, maxsend, maxchange, rescan, reconnect, browser, upnp, reporting")
+				}
+			},
+		},
+		{
+			Name:     "set",
+			Usage:    "Set a Syncthing option setting",
+			Requires: &cli.Requires{"setting", "value..."},
+			Action: func(c *cli.Context) {