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package authflow
import (
"bufio"
"fmt"
"io"
"net/http"
"net/url"
"regexp"
"strings"
"github.com/cli/cli/v2/api"
"github.com/cli/cli/v2/internal/browser"
"github.com/cli/cli/v2/internal/ghinstance"
"github.com/cli/cli/v2/pkg/iostreams"
"github.com/cli/cli/v2/utils"
"github.com/cli/oauth"
"github.com/henvic/httpretty"
)
var (
// The "GitHub CLI" OAuth app
oauthClientID = "178c6fc778ccc68e1d6a"
// This value is safe to be embedded in version control
oauthClientSecret = "34ddeff2b558a23d38fba8a6de74f086ede1cc0b"
jsonTypeRE = regexp.MustCompile(`[/+]json($|;)`)
)
func AuthFlow(oauthHost string, IO *iostreams.IOStreams, notice string, additionalScopes []string, isInteractive bool, b browser.Browser) (string, string, error) {
w := IO.ErrOut
cs := IO.ColorScheme()
httpClient := &http.Client{}
debugEnabled, debugValue := utils.IsDebugEnabled()
if debugEnabled {
logTraffic := strings.Contains(debugValue, "api")
httpClient.Transport = verboseLog(IO.ErrOut, logTraffic, IO.ColorEnabled())(httpClient.Transport)
}
minimumScopes := []string{"repo", "read:org", "gist"}
scopes := append(minimumScopes, additionalScopes...)
callbackURI := "http://127.0.0.1/callback"
if ghinstance.IsEnterprise(oauthHost) {
// the OAuth app on Enterprise hosts is still registered with a legacy callback URL
// see https://github.com/cli/cli/pull/222, https://github.com/cli/cli/pull/650
callbackURI = "http://localhost/"
}
flow := &oauth.Flow{
Host: oauth.GitHubHost(ghinstance.HostPrefix(oauthHost)),
ClientID: oauthClientID,
ClientSecret: oauthClientSecret,
CallbackURI: callbackURI,
Scopes: scopes,
DisplayCode: func(code, verificationURL string) error {
fmt.Fprintf(w, "%s First copy your one-time code: %s\n", cs.Yellow("!"), cs.Bold(code))
return nil
},
BrowseURL: func(authURL string) error {
if u, err := url.Parse(authURL); err == nil {
if u.Scheme != "http" && u.Scheme != "https" {
return fmt.Errorf("invalid URL: %s", authURL)
}
} else {
return err
}
if !isInteractive {
fmt.Fprintf(w, "%s to continue in your web browser: %s\n", cs.Bold("Open this URL"), authURL)
return nil
}
fmt.Fprintf(w, "%s to open %s in your browser... ", cs.Bold("Press Enter"), oauthHost)
_ = waitForEnter(IO.In)
if err := b.Browse(authURL); err != nil {
fmt.Fprintf(w, "%s Failed opening a web browser at %s\n", cs.Red("!"), authURL)
fmt.Fprintf(w, " %s\n", err)
fmt.Fprint(w, " Please try entering the URL in your browser manually\n")
}
return nil
},
WriteSuccessHTML: func(w io.Writer) {
fmt.Fprint(w, oauthSuccessPage)
},
HTTPClient: httpClient,
Stdin: IO.In,
Stdout: w,
}
fmt.Fprintln(w, notice)
token, err := flow.DetectFlow()
if err != nil {
return "", "", err
}
userLogin, err := getViewer(oauthHost, token.Token, IO.ErrOut)
if err != nil {
return "", "", err
}
return token.Token, userLogin, nil
}
type cfg struct {
token string
}
func (c cfg) ActiveToken(hostname string) (string, string) {
return c.token, "oauth_token"
}
func getViewer(hostname, token string, logWriter io.Writer) (string, error) {
opts := api.HTTPClientOptions{
Config: cfg{token: token},
Log: logWriter,
}
client, err := api.NewHTTPClient(opts)
if err != nil {
return "", err
}
return api.CurrentLoginName(api.NewClientFromHTTP(client), hostname)
}
func waitForEnter(r io.Reader) error {
scanner := bufio.NewScanner(r)
scanner.Scan()
return scanner.Err()
}
func verboseLog(out io.Writer, logTraffic bool, colorize bool) func(http.RoundTripper) http.RoundTripper {
logger := &httpretty.Logger{
Time: true,
TLS: false,
Colors: colorize,
RequestHeader: logTraffic,
RequestBody: logTraffic,
ResponseHeader: logTraffic,
ResponseBody: logTraffic,
Formatters: []httpretty.Formatter{&httpretty.JSONFormatter{}},
MaxResponseBody: 10000,
}
logger.SetOutput(out)
logger.SetBodyFilter(func(h http.Header) (skip bool, err error) {
return !inspectableMIMEType(h.Get("Content-Type")), nil
})
return logger.RoundTripper
}
func inspectableMIMEType(t string) bool {
return strings.HasPrefix(t, "text/") ||
strings.HasPrefix(t, "application/x-www-form-urlencoded") ||
jsonTypeRE.MatchString(t)
}
|
