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ffe7a2fcd7
This adds a config to enable debug functions on the API server, which is
by default disabled. When enabled, the /rest/debug things become
available and become available without requiring a CSRF token (although
authentication is required if configured).
We also add a new endpoint /rest/debug/cpuprof?duration=15s (with the
duration being configurable, defaulting to 30s). This runs a CPU profile
for the duration and returns it as a file. It sets headers so that a
browser will save the file with an informative name.
The same is done for heap profiles, /rest/debug/heapprof, which does not
take any parameters.
The purpose of this is that any user can enable debugging under
advanced, then point their browser to the endpoint above and get a file
that contains a CPU or heap profile we can use, with the filename
telling us what version and architecture the profile is from.
On the command line, this becomes
curl -O -J http://localhost:8082/rest/debug/cpuprof?duration=5s
curl: Saved to filename
'syncthing-cpu-darwin-amd64-v0.14.3+4-g935bcc0-110307.pprof'
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3467
94 lines
2.6 KiB
Go
94 lines
2.6 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package config
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import (
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"net/url"
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"os"
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"strings"
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)
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type GUIConfiguration struct {
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Enabled bool `xml:"enabled,attr" json:"enabled" default:"true"`
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RawAddress string `xml:"address" json:"address" default:"127.0.0.1:8384"`
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User string `xml:"user,omitempty" json:"user"`
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Password string `xml:"password,omitempty" json:"password"`
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RawUseTLS bool `xml:"tls,attr" json:"useTLS"`
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APIKey string `xml:"apikey,omitempty" json:"apiKey"`
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InsecureAdminAccess bool `xml:"insecureAdminAccess,omitempty" json:"insecureAdminAccess"`
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Theme string `xml:"theme" json:"theme" default:"default"`
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Debugging bool `xml:"debugging,attr" json:"debugging"`
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}
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func (c GUIConfiguration) Address() string {
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if override := os.Getenv("STGUIADDRESS"); override != "" {
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// This value may be of the form "scheme://address:port" or just
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// "address:port". We need to chop off the scheme. We try to parse it as
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// an URL if it contains a slash. If that fails, return it as is and let
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// some other error handling handle it.
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if strings.Contains(override, "/") {
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url, err := url.Parse(override)
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if err != nil {
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return override
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}
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return url.Host
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}
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return override
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}
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return c.RawAddress
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}
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func (c GUIConfiguration) UseTLS() bool {
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if override := os.Getenv("STGUIADDRESS"); override != "" && strings.HasPrefix(override, "http") {
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return strings.HasPrefix(override, "https:")
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}
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return c.RawUseTLS
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}
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func (c GUIConfiguration) URL() string {
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u := url.URL{
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Scheme: "http",
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Host: c.Address(),
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Path: "/",
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}
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if c.UseTLS() {
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u.Scheme = "https"
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}
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if strings.HasPrefix(u.Host, ":") {
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// Empty host, i.e. ":port", use IPv4 localhost
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u.Host = "127.0.0.1" + u.Host
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} else if strings.HasPrefix(u.Host, "0.0.0.0:") {
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// IPv4 all zeroes host, convert to IPv4 localhost
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u.Host = "127.0.0.1" + u.Host[7:]
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} else if strings.HasPrefix(u.Host, "[::]:") {
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// IPv6 all zeroes host, convert to IPv6 localhost
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u.Host = "[::1]" + u.Host[4:]
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}
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return u.String()
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}
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// IsValidAPIKey returns true when the given API key is valid, including both
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// the value in config and any overrides
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func (c GUIConfiguration) IsValidAPIKey(apiKey string) bool {
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switch apiKey {
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case "":
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return false
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case c.APIKey, os.Getenv("STGUIAPIKEY"):
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return true
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default:
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return false
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}
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}
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