2015-08-18 09:55:09 +02:00
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package oauthutil
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import (
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2018-04-06 20:13:27 +02:00
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"context"
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2015-09-03 00:37:42 +02:00
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"crypto/rand"
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2015-08-18 09:55:09 +02:00
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"encoding/json"
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"fmt"
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2018-06-03 23:49:11 +02:00
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"html/template"
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2015-09-03 00:37:42 +02:00
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"log"
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"net"
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2015-08-18 09:55:09 +02:00
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"net/http"
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2016-01-04 16:13:36 +01:00
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"strings"
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2016-05-23 19:03:22 +02:00
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"sync"
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2015-08-18 09:55:09 +02:00
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"time"
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"github.com/ncw/rclone/fs"
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2018-01-12 17:30:54 +01:00
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"github.com/ncw/rclone/fs/config"
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2018-05-14 19:06:57 +02:00
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"github.com/ncw/rclone/fs/config/configmap"
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2018-01-12 17:30:54 +01:00
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"github.com/ncw/rclone/fs/fshttp"
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2016-06-12 16:06:02 +02:00
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"github.com/pkg/errors"
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2015-09-03 00:37:42 +02:00
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"github.com/skratchdot/open-golang/open"
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2015-08-18 09:55:09 +02:00
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"golang.org/x/oauth2"
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)
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2015-09-12 15:17:39 +02:00
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const (
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// TitleBarRedirectURL is the OAuth2 redirect URL to use when the authorization
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// code should be returned in the title bar of the browser, with the page text
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// prompting the user to copy the code and paste it in the application.
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TitleBarRedirectURL = "urn:ietf:wg:oauth:2.0:oob"
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2015-10-04 23:06:53 +02:00
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// bindPort is the port that we bind the local webserver to
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bindPort = "53682"
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// bindAddress is binding for local webserver when active
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bindAddress = "127.0.0.1:" + bindPort
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2015-09-12 15:17:39 +02:00
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// RedirectURL is redirect to local webserver when active
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RedirectURL = "http://" + bindAddress + "/"
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2015-10-04 23:06:53 +02:00
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// RedirectPublicURL is redirect to local webserver when active with public name
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RedirectPublicURL = "http://localhost.rclone.org:" + bindPort + "/"
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2015-11-08 16:29:19 +01:00
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// RedirectLocalhostURL is redirect to local webserver when active with localhost
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RedirectLocalhostURL = "http://localhost:" + bindPort + "/"
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2018-06-03 23:49:11 +02:00
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// AuthResponse is a template to handle the redirect URL for oauth requests
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AuthResponse = `<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>{{ if .OK }}Success!{{ else }}Failure!{{ end }}</title>
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</head>
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<body>
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<h1>{{ if .OK }}Success!{{ else }}Failure!{{ end }}</h1>
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<hr>
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<pre style="width: 750px; white-space: pre-wrap;">
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{{ if eq .OK false }}
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Error: {{ .AuthError.Name }}<br>
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{{ if .AuthError.Description }}Description: {{ .AuthError.Description }}<br>{{ end }}
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{{ if .AuthError.Code }}Code: {{ .AuthError.Code }}<br>{{ end }}
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{{ if .AuthError.HelpURL }}Look here for help: <a href="{{ .AuthError.HelpURL }}">{{ .AuthError.HelpURL }}</a><br>{{ end }}
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{{ else }}
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{{ if .Code }}
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Please copy this code into rclone:
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{{ .Code }}
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{{ else }}
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All done. Please go back to rclone.
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{{ end }}
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{{ end }}
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</pre>
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</body>
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</html>
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`
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2015-09-12 15:17:39 +02:00
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)
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2015-08-18 09:55:09 +02:00
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// oldToken contains an end-user's tokens.
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// This is the data you must store to persist authentication.
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//
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// From the original code.google.com/p/goauth2/oauth package - used
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// for backwards compatibility in the rclone config file
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type oldToken struct {
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AccessToken string
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RefreshToken string
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Expiry time.Time
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}
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2017-09-06 09:24:20 +02:00
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// GetToken returns the token saved in the config file under
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2015-08-18 09:55:09 +02:00
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// section name.
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2018-05-14 19:06:57 +02:00
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func GetToken(name string, m configmap.Mapper) (*oauth2.Token, error) {
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tokenString, ok := m.Get(config.ConfigToken)
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if !ok || tokenString == "" {
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2016-06-12 16:06:02 +02:00
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return nil, errors.New("empty token found - please run rclone config again")
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2015-08-18 09:55:09 +02:00
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}
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token := new(oauth2.Token)
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2016-12-20 19:03:09 +01:00
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err := json.Unmarshal([]byte(tokenString), token)
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2015-08-18 09:55:09 +02:00
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if err != nil {
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return nil, err
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}
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// if has data then return it
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2017-05-21 18:00:01 +02:00
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if token.AccessToken != "" {
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2015-08-18 09:55:09 +02:00
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return token, nil
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}
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// otherwise try parsing as oldToken
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oldtoken := new(oldToken)
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err = json.Unmarshal([]byte(tokenString), oldtoken)
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if err != nil {
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return nil, err
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}
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// Fill in result into new token
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token.AccessToken = oldtoken.AccessToken
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token.RefreshToken = oldtoken.RefreshToken
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token.Expiry = oldtoken.Expiry
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// Save new format in config file
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2018-05-14 19:06:57 +02:00
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err = PutToken(name, m, token, false)
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2015-08-18 09:55:09 +02:00
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if err != nil {
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return nil, err
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}
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return token, nil
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}
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2017-09-06 09:24:20 +02:00
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// PutToken stores the token in the config file
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2015-08-18 09:55:09 +02:00
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//
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// This saves the config file if it changes
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2018-05-14 19:06:57 +02:00
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func PutToken(name string, m configmap.Mapper, token *oauth2.Token, newSection bool) error {
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2015-08-18 09:55:09 +02:00
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tokenBytes, err := json.Marshal(token)
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if err != nil {
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return err
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}
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tokenString := string(tokenBytes)
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2018-05-14 19:06:57 +02:00
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old, ok := m.Get(config.ConfigToken)
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if !ok || tokenString != old {
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2018-01-12 17:30:54 +01:00
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err = config.SetValueAndSave(name, config.ConfigToken, tokenString)
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2017-08-05 12:04:42 +02:00
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if newSection && err != nil {
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fs.Debugf(name, "Added new token to config, still needs to be saved")
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} else if err != nil {
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2017-02-09 12:01:20 +01:00
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fs.Errorf(nil, "Failed to save new token in config file: %v", err)
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2016-12-19 16:04:07 +01:00
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} else {
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2017-02-09 12:01:20 +01:00
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fs.Debugf(name, "Saved new token in config file")
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2016-12-19 16:04:07 +01:00
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}
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2015-08-18 09:55:09 +02:00
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}
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return nil
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}
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2016-05-23 19:03:22 +02:00
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// TokenSource stores updated tokens in the config file
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type TokenSource struct {
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mu sync.Mutex
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name string
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2018-05-14 19:06:57 +02:00
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m configmap.Mapper
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2016-05-23 19:03:22 +02:00
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tokenSource oauth2.TokenSource
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token *oauth2.Token
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config *oauth2.Config
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ctx context.Context
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2016-08-08 20:02:27 +02:00
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expiryTimer *time.Timer // signals whenever the token expires
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2015-08-18 09:55:09 +02:00
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}
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// Token returns a token or an error.
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// Token must be safe for concurrent use by multiple goroutines.
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// The returned Token must not be modified.
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//
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// This saves the token in the config file if it has changed
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2016-05-23 19:03:22 +02:00
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func (ts *TokenSource) Token() (*oauth2.Token, error) {
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ts.mu.Lock()
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defer ts.mu.Unlock()
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// Make a new token source if required
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if ts.tokenSource == nil {
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ts.tokenSource = ts.config.TokenSource(ts.ctx, ts.token)
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}
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token, err := ts.tokenSource.Token()
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2015-08-18 09:55:09 +02:00
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if err != nil {
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return nil, err
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}
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2016-05-23 19:03:22 +02:00
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changed := *token != *ts.token
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ts.token = token
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if changed {
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2016-08-08 20:02:27 +02:00
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// Bump on the expiry timer if it is set
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if ts.expiryTimer != nil {
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ts.expiryTimer.Reset(ts.timeToExpiry())
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}
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2018-05-14 19:06:57 +02:00
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err = PutToken(ts.name, ts.m, token, false)
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2015-09-22 08:31:12 +02:00
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if err != nil {
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return nil, err
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}
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2015-08-18 09:55:09 +02:00
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}
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return token, nil
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}
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2016-05-23 19:03:22 +02:00
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// Invalidate invalidates the token
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func (ts *TokenSource) Invalidate() {
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ts.mu.Lock()
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ts.token.AccessToken = ""
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ts.mu.Unlock()
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}
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2016-08-08 20:02:27 +02:00
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// timeToExpiry returns how long until the token expires
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//
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// Call with the lock held
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func (ts *TokenSource) timeToExpiry() time.Duration {
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t := ts.token
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if t == nil {
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return 0
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}
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if t.Expiry.IsZero() {
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return 3E9 * time.Second // ~95 years
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}
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return t.Expiry.Sub(time.Now())
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}
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// OnExpiry returns a channel which has the time written to it when
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// the token expires. Note that there is only one channel so if
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// attaching multiple go routines it will only signal to one of them.
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func (ts *TokenSource) OnExpiry() <-chan time.Time {
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ts.mu.Lock()
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defer ts.mu.Unlock()
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if ts.expiryTimer == nil {
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ts.expiryTimer = time.NewTimer(ts.timeToExpiry())
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}
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return ts.expiryTimer.C
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}
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2015-08-18 09:55:09 +02:00
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// Check interface satisfied
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2016-05-23 19:03:22 +02:00
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var _ oauth2.TokenSource = (*TokenSource)(nil)
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2015-08-18 09:55:09 +02:00
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// Context returns a context with our HTTP Client baked in for oauth2
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2017-11-24 10:07:03 +01:00
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func Context(client *http.Client) context.Context {
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return context.WithValue(context.Background(), oauth2.HTTPClient, client)
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2015-08-18 09:55:09 +02:00
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}
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2015-09-16 21:08:40 +02:00
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// overrideCredentials sets the ClientID and ClientSecret from the
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2016-01-04 16:13:36 +01:00
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// config file if they are not blank.
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// If any value is overridden, true is returned.
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2017-01-16 16:10:08 +01:00
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// the origConfig is copied
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2018-05-14 19:06:57 +02:00
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func overrideCredentials(name string, m configmap.Mapper, origConfig *oauth2.Config) (newConfig *oauth2.Config, changed bool) {
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2018-01-12 17:30:54 +01:00
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newConfig = new(oauth2.Config)
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*newConfig = *origConfig
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2017-01-16 16:10:08 +01:00
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changed = false
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2018-05-14 19:06:57 +02:00
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ClientID, ok := m.Get(config.ConfigClientID)
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if ok && ClientID != "" {
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2018-01-12 17:30:54 +01:00
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newConfig.ClientID = ClientID
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2016-01-04 16:13:36 +01:00
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changed = true
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2015-09-16 21:08:40 +02:00
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}
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2018-05-14 19:06:57 +02:00
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ClientSecret, ok := m.Get(config.ConfigClientSecret)
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if ok && ClientSecret != "" {
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2018-01-12 17:30:54 +01:00
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newConfig.ClientSecret = ClientSecret
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2016-01-04 16:13:36 +01:00
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changed = true
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2015-09-16 21:08:40 +02:00
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}
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2018-05-14 19:06:57 +02:00
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AuthURL, ok := m.Get(config.ConfigAuthURL)
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if ok && AuthURL != "" {
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2018-01-12 17:30:54 +01:00
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newConfig.Endpoint.AuthURL = AuthURL
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2017-06-08 21:35:32 +02:00
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changed = true
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}
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2018-05-14 19:06:57 +02:00
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TokenURL, ok := m.Get(config.ConfigTokenURL)
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if ok && TokenURL != "" {
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2018-01-12 17:30:54 +01:00
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newConfig.Endpoint.TokenURL = TokenURL
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2017-06-08 21:35:32 +02:00
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changed = true
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}
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2018-01-12 17:30:54 +01:00
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return newConfig, changed
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2015-09-16 21:08:40 +02:00
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}
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2017-11-24 10:07:03 +01:00
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// NewClientWithBaseClient gets a token from the config file and
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// configures a Client with it. It returns the client and a
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// TokenSource which Invalidate may need to be called on. It uses the
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// httpClient passed in as the base client.
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2018-05-14 19:06:57 +02:00
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func NewClientWithBaseClient(name string, m configmap.Mapper, config *oauth2.Config, baseClient *http.Client) (*http.Client, *TokenSource, error) {
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config, _ = overrideCredentials(name, m, config)
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token, err := GetToken(name, m)
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2015-08-18 09:55:09 +02:00
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if err != nil {
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2016-05-23 19:03:22 +02:00
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return nil, nil, err
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2015-08-18 09:55:09 +02:00
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}
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// Set our own http client in the context
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2017-11-24 10:07:03 +01:00
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ctx := Context(baseClient)
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2015-08-18 09:55:09 +02:00
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// Wrap the TokenSource in our TokenSource which saves changed
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// tokens in the config file
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2016-05-23 19:03:22 +02:00
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ts := &TokenSource{
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name: name,
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2018-05-14 19:06:57 +02:00
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m: m,
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2016-05-23 19:03:22 +02:00
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token: token,
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config: config,
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ctx: ctx,
|
2015-08-18 09:55:09 +02:00
|
|
|
}
|
2016-05-23 19:03:22 +02:00
|
|
|
return oauth2.NewClient(ctx, ts), ts, nil
|
2015-08-18 09:55:09 +02:00
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
2017-11-24 10:07:03 +01:00
|
|
|
// NewClient gets a token from the config file and configures a Client
|
|
|
|
|
// with it. It returns the client and a TokenSource which Invalidate may need to be called on
|
2018-05-14 19:06:57 +02:00
|
|
|
func NewClient(name string, m configmap.Mapper, oauthConfig *oauth2.Config) (*http.Client, *TokenSource, error) {
|
|
|
|
|
return NewClientWithBaseClient(name, m, oauthConfig, fshttp.NewClient(fs.Config))
|
2017-11-24 10:07:03 +01:00
|
|
|
}
|
|
|
|
|
|
2015-08-18 09:55:09 +02:00
|
|
|
// Config does the initial creation of the token
|
2015-09-03 00:37:42 +02:00
|
|
|
//
|
2015-09-12 15:17:39 +02:00
|
|
|
// It may run an internal webserver to receive the results
|
2018-05-14 19:06:57 +02:00
|
|
|
func Config(id, name string, m configmap.Mapper, config *oauth2.Config, opts ...oauth2.AuthCodeOption) error {
|
|
|
|
|
return doConfig(id, name, m, nil, config, true, opts)
|
2017-06-14 17:46:46 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// ConfigNoOffline does the same as Config but does not pass the
|
|
|
|
|
// "access_type=offline" parameter.
|
2018-05-14 19:06:57 +02:00
|
|
|
func ConfigNoOffline(id, name string, m configmap.Mapper, config *oauth2.Config, opts ...oauth2.AuthCodeOption) error {
|
|
|
|
|
return doConfig(id, name, m, nil, config, false, opts)
|
2017-06-14 17:46:46 +02:00
|
|
|
}
|
|
|
|
|
|
2018-06-01 12:34:35 +02:00
|
|
|
// ConfigErrorCheck does the same as Config, but allows the backend to pass a error handling function
|
|
|
|
|
// This function gets called with the request made to rclone as a parameter if no code was found
|
2018-05-14 19:06:57 +02:00
|
|
|
func ConfigErrorCheck(id, name string, m configmap.Mapper, errorHandler func(*http.Request) AuthError, config *oauth2.Config, opts ...oauth2.AuthCodeOption) error {
|
|
|
|
|
return doConfig(id, name, m, errorHandler, config, true, opts)
|
2018-06-01 12:34:35 +02:00
|
|
|
}
|
|
|
|
|
|
2018-05-14 19:06:57 +02:00
|
|
|
func doConfig(id, name string, m configmap.Mapper, errorHandler func(*http.Request) AuthError, oauthConfig *oauth2.Config, offline bool, opts []oauth2.AuthCodeOption) error {
|
|
|
|
|
oauthConfig, changed := overrideCredentials(name, m, oauthConfig)
|
|
|
|
|
auto, ok := m.Get(config.ConfigAutomatic)
|
|
|
|
|
automatic := ok && auto != ""
|
2016-01-04 16:13:36 +01:00
|
|
|
|
2015-08-18 09:55:09 +02:00
|
|
|
// See if already have a token
|
2018-05-14 19:06:57 +02:00
|
|
|
tokenString, ok := m.Get("token")
|
|
|
|
|
if ok && tokenString != "" {
|
2015-08-18 09:55:09 +02:00
|
|
|
fmt.Printf("Already have a token - refresh?\n")
|
2018-01-12 17:30:54 +01:00
|
|
|
if !config.Confirm() {
|
2015-08-18 09:55:09 +02:00
|
|
|
return nil
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2015-09-12 15:17:39 +02:00
|
|
|
// Detect whether we should use internal web server
|
|
|
|
|
useWebServer := false
|
2018-01-18 12:18:35 +01:00
|
|
|
switch oauthConfig.RedirectURL {
|
2015-11-08 16:29:19 +01:00
|
|
|
case RedirectURL, RedirectPublicURL, RedirectLocalhostURL:
|
2018-05-13 18:28:09 +02:00
|
|
|
if changed {
|
|
|
|
|
fmt.Printf("Make sure your Redirect URL is set to %q in your custom config.\n", oauthConfig.RedirectURL)
|
|
|
|
|
}
|
2015-09-12 15:17:39 +02:00
|
|
|
useWebServer = true
|
2016-01-04 16:13:36 +01:00
|
|
|
if automatic {
|
|
|
|
|
break
|
|
|
|
|
}
|
2015-09-12 15:17:39 +02:00
|
|
|
fmt.Printf("Use auto config?\n")
|
|
|
|
|
fmt.Printf(" * Say Y if not sure\n")
|
2016-01-04 16:13:36 +01:00
|
|
|
fmt.Printf(" * Say N if you are working on a remote or headless machine\n")
|
2018-01-12 17:30:54 +01:00
|
|
|
auto := config.Confirm()
|
2016-01-04 16:13:36 +01:00
|
|
|
if !auto {
|
|
|
|
|
fmt.Printf("For this to work, you will need rclone available on a machine that has a web browser available.\n")
|
|
|
|
|
fmt.Printf("Execute the following on your machine:\n")
|
|
|
|
|
if changed {
|
2018-01-12 17:30:54 +01:00
|
|
|
fmt.Printf("\trclone authorize %q %q %q\n", id, oauthConfig.ClientID, oauthConfig.ClientSecret)
|
2016-01-04 16:13:36 +01:00
|
|
|
} else {
|
|
|
|
|
fmt.Printf("\trclone authorize %q\n", id)
|
|
|
|
|
}
|
|
|
|
|
fmt.Println("Then paste the result below:")
|
|
|
|
|
code := ""
|
|
|
|
|
for code == "" {
|
|
|
|
|
fmt.Printf("result> ")
|
2018-01-12 17:30:54 +01:00
|
|
|
code = strings.TrimSpace(config.ReadLine())
|
2016-01-04 16:13:36 +01:00
|
|
|
}
|
|
|
|
|
token := &oauth2.Token{}
|
|
|
|
|
err := json.Unmarshal([]byte(code), token)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
2018-05-14 19:06:57 +02:00
|
|
|
return PutToken(name, m, token, false)
|
2016-01-04 16:13:36 +01:00
|
|
|
}
|
|
|
|
|
case TitleBarRedirectURL:
|
|
|
|
|
useWebServer = automatic
|
|
|
|
|
if !automatic {
|
|
|
|
|
fmt.Printf("Use auto config?\n")
|
|
|
|
|
fmt.Printf(" * Say Y if not sure\n")
|
|
|
|
|
fmt.Printf(" * Say N if you are working on a remote or headless machine or Y didn't work\n")
|
2018-01-12 17:30:54 +01:00
|
|
|
useWebServer = config.Confirm()
|
2016-01-04 16:13:36 +01:00
|
|
|
}
|
2015-10-02 22:06:11 +02:00
|
|
|
if useWebServer {
|
|
|
|
|
// copy the config and set to use the internal webserver
|
2018-01-12 17:30:54 +01:00
|
|
|
configCopy := *oauthConfig
|
|
|
|
|
oauthConfig = &configCopy
|
|
|
|
|
oauthConfig.RedirectURL = RedirectURL
|
2015-10-02 22:06:11 +02:00
|
|
|
}
|
2015-09-12 15:17:39 +02:00
|
|
|
}
|
|
|
|
|
|
2015-09-03 00:37:42 +02:00
|
|
|
// Make random state
|
|
|
|
|
stateBytes := make([]byte, 16)
|
|
|
|
|
_, err := rand.Read(stateBytes)
|
|
|
|
|
if err != nil {
|
|
|
|
|
return err
|
|
|
|
|
}
|
|
|
|
|
state := fmt.Sprintf("%x", stateBytes)
|
2017-06-14 17:46:46 +02:00
|
|
|
if offline {
|
|
|
|
|
opts = append(opts, oauth2.AccessTypeOffline)
|
|
|
|
|
}
|
2018-01-12 17:30:54 +01:00
|
|
|
authURL := oauthConfig.AuthCodeURL(state, opts...)
|
2015-09-03 00:37:42 +02:00
|
|
|
|
|
|
|
|
// Prepare webserver
|
|
|
|
|
server := authServer{
|
2018-06-01 12:34:35 +02:00
|
|
|
state: state,
|
|
|
|
|
bindAddress: bindAddress,
|
|
|
|
|
authURL: authURL,
|
|
|
|
|
errorHandler: errorHandler,
|
2015-09-03 00:37:42 +02:00
|
|
|
}
|
2015-09-12 15:17:39 +02:00
|
|
|
if useWebServer {
|
2015-09-11 14:26:51 +02:00
|
|
|
server.code = make(chan string, 1)
|
2018-06-01 12:34:35 +02:00
|
|
|
server.err = make(chan error, 1)
|
2015-09-03 00:37:42 +02:00
|
|
|
go server.Start()
|
|
|
|
|
defer server.Stop()
|
2015-09-22 19:47:16 +02:00
|
|
|
authURL = "http://" + bindAddress + "/auth"
|
2015-09-03 00:37:42 +02:00
|
|
|
}
|
|
|
|
|
|
2015-08-18 09:55:09 +02:00
|
|
|
// Generate a URL for the user to visit for authorization.
|
2015-09-22 19:47:16 +02:00
|
|
|
_ = open.Start(authURL)
|
|
|
|
|
fmt.Printf("If your browser doesn't open automatically go to the following link: %s\n", authURL)
|
2015-09-11 14:26:51 +02:00
|
|
|
fmt.Printf("Log in and authorize rclone for access\n")
|
2015-08-18 09:55:09 +02:00
|
|
|
|
2015-09-11 14:26:51 +02:00
|
|
|
var authCode string
|
2015-09-12 15:17:39 +02:00
|
|
|
if useWebServer {
|
2015-09-11 14:26:51 +02:00
|
|
|
// Read the code, and exchange it for a token.
|
|
|
|
|
fmt.Printf("Waiting for code...\n")
|
|
|
|
|
authCode = <-server.code
|
2018-06-01 12:34:35 +02:00
|
|
|
authError := <-server.err
|
2015-09-11 14:26:51 +02:00
|
|
|
if authCode != "" {
|
|
|
|
|
fmt.Printf("Got code\n")
|
|
|
|
|
} else {
|
2018-06-01 12:34:35 +02:00
|
|
|
if authError != nil {
|
|
|
|
|
return authError
|
|
|
|
|
}
|
2016-06-12 16:06:02 +02:00
|
|
|
return errors.New("failed to get code")
|
2015-09-11 14:26:51 +02:00
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
// Read the code, and exchange it for a token.
|
|
|
|
|
fmt.Printf("Enter verification code> ")
|
2018-01-12 17:30:54 +01:00
|
|
|
authCode = config.ReadLine()
|
2015-09-11 14:26:51 +02:00
|
|
|
}
|
2018-01-12 17:30:54 +01:00
|
|
|
token, err := oauthConfig.Exchange(oauth2.NoContext, authCode)
|
2015-08-18 09:55:09 +02:00
|
|
|
if err != nil {
|
2016-06-12 16:06:02 +02:00
|
|
|
return errors.Wrap(err, "failed to get token")
|
2015-08-18 09:55:09 +02:00
|
|
|
}
|
2016-01-04 16:13:36 +01:00
|
|
|
|
|
|
|
|
// Print code if we do automatic retrieval
|
|
|
|
|
if automatic {
|
|
|
|
|
result, err := json.Marshal(token)
|
|
|
|
|
if err != nil {
|
2016-06-12 16:06:02 +02:00
|
|
|
return errors.Wrap(err, "failed to marshal token")
|
2016-01-04 16:13:36 +01:00
|
|
|
}
|
|
|
|
|
fmt.Printf("Paste the following into your remote machine --->\n%s\n<---End paste", result)
|
|
|
|
|
}
|
2018-05-14 19:06:57 +02:00
|
|
|
return PutToken(name, m, token, true)
|
2015-08-18 09:55:09 +02:00
|
|
|
}
|
2015-09-03 00:37:42 +02:00
|
|
|
|
|
|
|
|
// Local web server for collecting auth
|
|
|
|
|
type authServer struct {
|
2018-06-01 12:34:35 +02:00
|
|
|
state string
|
|
|
|
|
listener net.Listener
|
|
|
|
|
bindAddress string
|
|
|
|
|
code chan string
|
|
|
|
|
err chan error
|
|
|
|
|
authURL string
|
|
|
|
|
server *http.Server
|
|
|
|
|
errorHandler func(*http.Request) AuthError
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// AuthError gets returned by the backend's errorHandler function
|
|
|
|
|
type AuthError struct {
|
|
|
|
|
Name string
|
|
|
|
|
Description string
|
|
|
|
|
Code string
|
|
|
|
|
HelpURL string
|
2015-09-03 00:37:42 +02:00
|
|
|
}
|
|
|
|
|
|
2018-06-03 23:49:11 +02:00
|
|
|
// AuthResponseData can fill the AuthResponse template
|
|
|
|
|
type AuthResponseData struct {
|
|
|
|
|
OK bool // Failure or Success?
|
|
|
|
|
Code string // code to paste into rclone config
|
|
|
|
|
AuthError
|
|
|
|
|
}
|
|
|
|
|
|
2015-09-03 00:37:42 +02:00
|
|
|
// startWebServer runs an internal web server to receive config details
|
|
|
|
|
func (s *authServer) Start() {
|
2017-02-09 12:01:20 +01:00
|
|
|
fs.Debugf(nil, "Starting auth server on %s", s.bindAddress)
|
2015-09-03 00:37:42 +02:00
|
|
|
mux := http.NewServeMux()
|
2017-08-03 20:08:31 +02:00
|
|
|
s.server = &http.Server{
|
2015-09-03 00:37:42 +02:00
|
|
|
Addr: s.bindAddress,
|
|
|
|
|
Handler: mux,
|
|
|
|
|
}
|
2017-08-03 20:08:31 +02:00
|
|
|
s.server.SetKeepAlivesEnabled(false)
|
2015-09-03 00:37:42 +02:00
|
|
|
mux.HandleFunc("/favicon.ico", func(w http.ResponseWriter, req *http.Request) {
|
|
|
|
|
http.Error(w, "", 404)
|
|
|
|
|
return
|
|
|
|
|
})
|
2015-09-11 14:26:51 +02:00
|
|
|
mux.HandleFunc("/auth", func(w http.ResponseWriter, req *http.Request) {
|
2016-03-23 14:00:43 +01:00
|
|
|
http.Redirect(w, req, s.authURL, http.StatusTemporaryRedirect)
|
2015-09-11 14:26:51 +02:00
|
|
|
return
|
|
|
|
|
})
|
2015-09-03 00:37:42 +02:00
|
|
|
mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
|
2016-03-23 14:00:43 +01:00
|
|
|
w.Header().Set("Content-Type", "text/html")
|
2017-02-09 12:01:20 +01:00
|
|
|
fs.Debugf(nil, "Received request on auth server")
|
2015-09-03 00:37:42 +02:00
|
|
|
code := req.FormValue("code")
|
2018-06-01 12:34:35 +02:00
|
|
|
var err error
|
2018-06-03 23:49:11 +02:00
|
|
|
var t = template.Must(template.New("authResponse").Parse(AuthResponse))
|
|
|
|
|
resp := AuthResponseData{AuthError: AuthError{}}
|
2015-09-03 00:37:42 +02:00
|
|
|
if code != "" {
|
|
|
|
|
state := req.FormValue("state")
|
|
|
|
|
if state != s.state {
|
2017-02-09 12:01:20 +01:00
|
|
|
fs.Debugf(nil, "State did not match: want %q got %q", s.state, state)
|
2018-06-03 23:49:11 +02:00
|
|
|
resp.OK = false
|
|
|
|
|
resp.AuthError = AuthError{
|
|
|
|
|
Name: "Auth State doesn't match",
|
|
|
|
|
}
|
2015-09-03 00:37:42 +02:00
|
|
|
} else {
|
2017-02-09 12:01:20 +01:00
|
|
|
fs.Debugf(nil, "Successfully got code")
|
2018-06-03 23:49:11 +02:00
|
|
|
resp.OK = true
|
|
|
|
|
if s.code == nil {
|
|
|
|
|
resp.Code = code
|
2015-09-11 14:26:51 +02:00
|
|
|
}
|
2015-09-03 00:37:42 +02:00
|
|
|
}
|
2017-11-09 22:34:44 +01:00
|
|
|
} else {
|
|
|
|
|
fs.Debugf(nil, "No code found on request")
|
2018-06-03 23:49:11 +02:00
|
|
|
var authError AuthError
|
|
|
|
|
if s.errorHandler == nil {
|
|
|
|
|
authError = AuthError{
|
|
|
|
|
Name: "Auth Error",
|
|
|
|
|
Description: "No code found returned by remote server.",
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
authError = s.errorHandler(req)
|
2018-06-01 12:34:35 +02:00
|
|
|
}
|
2018-06-03 23:49:11 +02:00
|
|
|
err = fmt.Errorf("Error: %s\nCode: %s\nDescription: %s\nHelp: %s",
|
|
|
|
|
authError.Name, authError.Code, authError.Description, authError.HelpURL)
|
|
|
|
|
resp.OK = false
|
|
|
|
|
resp.AuthError = authError
|
2017-11-09 22:34:44 +01:00
|
|
|
w.WriteHeader(500)
|
2018-06-03 23:49:11 +02:00
|
|
|
}
|
|
|
|
|
if err := t.Execute(w, resp); err != nil {
|
|
|
|
|
fs.Debugf(nil, "Could not execute template for web response.")
|
2017-11-09 22:34:44 +01:00
|
|
|
}
|
|
|
|
|
if s.code != nil {
|
|
|
|
|
s.code <- code
|
2018-06-01 12:34:35 +02:00
|
|
|
s.err <- err
|
2015-09-03 00:37:42 +02:00
|
|
|
}
|
|
|
|
|
})
|
|
|
|
|
|
|
|
|
|
var err error
|
|
|
|
|
s.listener, err = net.Listen("tcp", s.bindAddress)
|
|
|
|
|
if err != nil {
|
|
|
|
|
log.Fatalf("Failed to start auth webserver: %v", err)
|
|
|
|
|
}
|
2017-08-03 20:08:31 +02:00
|
|
|
err = s.server.Serve(s.listener)
|
2017-02-09 12:01:20 +01:00
|
|
|
fs.Debugf(nil, "Closed auth server with error: %v", err)
|
2015-09-03 00:37:42 +02:00
|
|
|
}
|
