cmd/syncthing: Add cli as a subcommand (fixes #6566, fixes #4719) (#7364)

* cmd/syncthing: Add cli as a subcommand (fixes #6566, fixes #4719) * Hijack help * Add comment * Revert go.mod/go.sum
2021-02-15 18:50:53 +01:00
parent b2c9e7b07b
commit fb078068b4
8 changed files with 107 additions and 88 deletions
@@ -0,0 +1,96 @@
+// Copyright (C) 2019 The Syncthing Authors.
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this file,
+// You can obtain one at https://mozilla.org/MPL/2.0/.
+
+package cli
+
+import (
+	"bytes"
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"net"
+	"net/http"
+	"strings"
+
+	"github.com/syncthing/syncthing/lib/config"
+)
+
+type APIClient struct {
+	http.Client
+	cfg    config.GUIConfiguration
+	apikey string
+}
+
+func getClient(cfg config.GUIConfiguration) *APIClient {
+	httpClient := http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: &tls.Config{
+				InsecureSkipVerify: true,
+			},
+			DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
+				return net.Dial(cfg.Network(), cfg.Address())
+			},
+		},
+	}
+	return &APIClient{
+		Client: httpClient,
+		cfg:    cfg,
+		apikey: cfg.APIKey,
+	}
+}
+
+func (c *APIClient) Endpoint() string {
+	if c.cfg.Network() == "unix" {
+		return "http://unix/"
+	}
+	url := c.cfg.URL()
+	if !strings.HasSuffix(url, "/") {
+		url += "/"
+	}
+	return url
+}
+
+func (c *APIClient) Do(req *http.Request) (*http.Response, error) {
+	req.Header.Set("X-API-Key", c.apikey)
+	resp, err := c.Client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	return resp, checkResponse(resp)
+}
+
+func (c *APIClient) Get(url string) (*http.Response, error) {
+	request, err := http.NewRequest("GET", c.Endpoint()+"rest/"+url, nil)
+	if err != nil {
+		return nil, err
+	}
+	return c.Do(request)
+}
+
+func (c *APIClient) Post(url, body string) (*http.Response, error) {
+	request, err := http.NewRequest("POST", c.Endpoint()+"rest/"+url, bytes.NewBufferString(body))
+	if err != nil {
+		return nil, err
+	}
+	return c.Do(request)
+}
+
+func checkResponse(response *http.Response) error {
+	if response.StatusCode == 404 {
+		return errors.New("invalid endpoint or API call")
+	} else if response.StatusCode == 403 {
+		return errors.New("invalid API key")
+	} else if response.StatusCode != 200 {
+		data, err := responseToBArray(response)
+		if err != nil {
+			return err
+		}
+		body := strings.TrimSpace(string(data))
+		return fmt.Errorf("unexpected HTTP status returned: %s\n%s", response.Status, body)
+	}
+	return nil
+}