mirror of https://github.com/perkeep/perkeep.git
131 lines
3.8 KiB
Go
131 lines
3.8 KiB
Go
/*
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Copyright 2014 The Camlistore Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"bufio"
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"encoding/json"
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"flag"
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"fmt"
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"strings"
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"camlistore.org/pkg/blobserver/google/drive"
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"camlistore.org/pkg/cmdmain"
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"camlistore.org/pkg/googlestorage"
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"camlistore.org/third_party/code.google.com/p/goauth2/oauth"
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)
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type googinitCmd struct {
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storageType string
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}
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func init() {
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cmdmain.RegisterCommand("googinit", func(flags *flag.FlagSet) cmdmain.CommandRunner {
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cmd := new(googinitCmd)
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flags.StringVar(&cmd.storageType, "type", "", "Storage type: drive or cloud")
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return cmd
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})
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}
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func (c *googinitCmd) Describe() string {
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return "Init Google Drive or Google Cloud Storage."
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}
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func (c *googinitCmd) Usage() {
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fmt.Fprintf(cmdmain.Stderr, "Usage: camtool [globalopts] googinit [commandopts] \n")
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}
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func (c *googinitCmd) RunCommand(args []string) error {
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var (
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err error
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clientId string
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clientSecret string
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transport *oauth.Transport
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)
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if c.storageType != "drive" && c.storageType != "cloud" {
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return cmdmain.UsageError("Invalid storage type: must be drive for Google Drive or cloud for Google Cloud Storage.")
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}
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if clientId, clientSecret, err = getClientInfo(); err != nil {
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return err
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}
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switch c.storageType {
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case "drive":
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transport = drive.MakeOauthTransport(clientId, clientSecret, "")
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case "cloud":
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transport = googlestorage.MakeOauthTransport(clientId, clientSecret, "")
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}
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var accessCode string
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if accessCode, err = getAccessCode(transport.Config); err != nil {
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return err
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}
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if _, err = transport.Exchange(accessCode); err != nil {
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return err
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}
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fmt.Fprintf(cmdmain.Stdout, "\nYour Google auth object:\n\n")
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enc := json.NewEncoder(cmdmain.Stdout)
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authObj := map[string]string{
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"client_id": transport.ClientId,
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"client_secret": transport.ClientSecret,
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"refresh_token": transport.RefreshToken,
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}
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enc.Encode(authObj)
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fmt.Fprint(cmdmain.Stdout, "\n")
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return nil
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}
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// Prompt the user for an input line. Return the given input.
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func prompt(promptText string) (string, error) {
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fmt.Fprint(cmdmain.Stdout, promptText)
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input := bufio.NewReader(cmdmain.Stdin)
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line, _, err := input.ReadLine()
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if err != nil {
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return "", fmt.Errorf("Failed to read line: %v", err)
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}
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return strings.TrimSpace(string(line)), nil
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}
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// Provide the authorization link, then prompt for the resulting access code
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func getAccessCode(config *oauth.Config) (string, error) {
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fmt.Fprintf(cmdmain.Stdout, "In order to obtain an access code, you will need to navigate to the following URL:\n\n")
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fmt.Fprintf(cmdmain.Stdout, "https://accounts.google.com/o/oauth2/auth?client_id=%s&redirect_uri=urn:ietf:wg:oauth:2.0:oob&scope=%s&response_type=code\n\n",
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config.ClientId, config.Scope)
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return prompt("Please enter the access code provided by that page:")
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}
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// Prompt for client id / secret
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func getClientInfo() (string, string, error) {
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fmt.Fprintf(cmdmain.Stdout, "Please provide the client id and client secret \n")
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fmt.Fprintf(cmdmain.Stdout, "(You can find these at http://code.google.com/apis/console > your project > API Access)\n")
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var (
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err error
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clientId string
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clientSecret string
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)
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if clientId, err = prompt("Client ID:"); err != nil {
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return "", "", err
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}
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if clientSecret, err = prompt("Client Secret:"); err != nil {
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return "", "", err
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}
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return clientId, clientSecret, nil
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}
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