115 lines
2.5 KiB
Go
115 lines
2.5 KiB
Go
package main
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import (
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"bytes"
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"context"
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"flag"
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"log"
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"mime/multipart"
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"net/http"
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"time"
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"github.com/google/subcommands"
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"github.com/manifoldco/promptui"
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)
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type loginCmd struct {
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username string
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}
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func (loginCmd) Name() string { return "login" }
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func (loginCmd) Synopsis() string { return "logs into wasmcloud" }
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func (loginCmd) Usage() string {
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return `wasmc login [options]
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$ wasmc login -username Cadey
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Logs into the wasmcloud API server and saves credentials to the global
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configuration file. The password is always prompted by standard input.
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Flags:
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`
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}
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func (l *loginCmd) SetFlags(fs *flag.FlagSet) {
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fs.StringVar(&l.username, "username", "", "wasmcloud username")
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}
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func init() {
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http.DefaultClient.CheckRedirect = func(req *http.Request, via []*http.Request) error {
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return http.ErrUseLastResponse
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}
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}
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func (l *loginCmd) Execute(ctx context.Context, fs *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
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cfg, err := loadConfig()
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if err != nil {
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log.Printf("error loading config: %v", err)
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return subcommands.ExitFailure
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}
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if l.username == "" {
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prompt := promptui.Prompt{
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Label: "Username",
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}
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result, err := prompt.Run()
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if err != nil {
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log.Printf("error reading username: %v", err)
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return subcommands.ExitFailure
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}
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l.username = result
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}
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prompt := promptui.Prompt{
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Label: "Password",
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Mask: '*',
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}
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password, err := prompt.Run()
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body := &bytes.Buffer{}
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writer := multipart.NewWriter(body)
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writer.WriteField("username", l.username)
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writer.WriteField("password", password)
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writer.Close()
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, *apiServer+"/login", body)
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if err != nil {
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panic(err)
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}
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req.Header.Set("Content-Type", writer.FormDataContentType())
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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log.Printf("can't log into server %s: %v", *apiServer, err)
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return subcommands.ExitFailure
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}
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if resp.StatusCode != http.StatusSeeOther {
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log.Printf("wanted %d but got %d, see above", http.StatusSeeOther, resp.StatusCode)
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return subcommands.ExitFailure
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}
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var cookie *http.Cookie
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for _, ck := range resp.Cookies() {
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if ck.Name == "wasmcloud-token" {
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cookie = ck
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break
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}
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}
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if cookie == nil {
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log.Printf("impossible state? server didn't send us a token")
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return subcommands.ExitFailure
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}
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cfg.Token = cookie.Value
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log.Printf("success! Logged in as %s, token expires at %s", l.username, cookie.Expires.Format(time.RFC3339))
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saveConfig(cfg)
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return subcommands.ExitSuccess
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}
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