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cern	[ DIR ]	dr-xr-xr-x
clientcredentials	[ DIR ]	dr-xr-xr-x
endpoints	[ DIR ]	dr-xr-xr-x
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heroku	[ DIR ]	dr-xr-xr-x
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internal	[ DIR ]	dr-xr-xr-x
jira	[ DIR ]	dr-xr-xr-x
jws	[ DIR ]	dr-xr-xr-x
jwt	[ DIR ]	dr-xr-xr-x
kakao	[ DIR ]	dr-xr-xr-x
linkedin	[ DIR ]	dr-xr-xr-x
mailchimp	[ DIR ]	dr-xr-xr-x
mailru	[ DIR ]	dr-xr-xr-x
mediamath	[ DIR ]	dr-xr-xr-x
microsoft	[ DIR ]	dr-xr-xr-x
nokiahealth	[ DIR ]	dr-xr-xr-x
odnoklassniki	[ DIR ]	dr-xr-xr-x
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stackoverflow	[ DIR ]	dr-xr-xr-x
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vk	[ DIR ]	dr-xr-xr-x
yahoo	[ DIR ]	dr-xr-xr-x
yandex	[ DIR ]	dr-xr-xr-x
.travis.yml	262 B	-r--r--r--
CONTRIBUTING.md	924 B	-r--r--r--
LICENSE	1.44 KB	-r--r--r--
README.md	1.55 KB	-r--r--r--
deviceauth.go	5.35 KB	-r--r--r--
deviceauth_test.go	2.17 KB	-r--r--r--
example_test.go	2.6 KB	-r--r--r--
go.mod	358 B	-r--r--r--
go.sum	2.3 KB	-r--r--r--
oauth2.go	13.59 KB	-r--r--r--
oauth2_test.go	19.55 KB	-r--r--r--
pkce.go	2.3 KB	-r--r--r--
token.go	5.8 KB	-r--r--r--
token_test.go	2.73 KB	-r--r--r--
transport.go	2.35 KB	-r--r--r--
transport_test.go	3.98 KB	-r--r--r--

Code Editor : token.go

// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package oauth2

import (
	"context"
	"fmt"
	"net/http"
	"net/url"
	"strconv"
	"strings"
	"time"

"golang.org/x/oauth2/internal"
)

// defaultExpiryDelta determines how earlier a token should be considered
// expired than its actual expiration time. It is used to avoid late
// expirations due to client-server time mismatches.
const defaultExpiryDelta = 10 * time.Second

// Token represents the credentials used to authorize
// the requests to access protected resources on the OAuth 2.0
// provider's backend.
//
// Most users of this package should not access fields of Token
// directly. They're exported mostly for use by related packages
// implementing derivative OAuth2 flows.
type Token struct {
	// AccessToken is the token that authorizes and authenticates
	// the requests.
	AccessToken string `json:"access_token"`

// TokenType is the type of token.
	// The Type method returns either this or "Bearer", the default.
	TokenType string `json:"token_type,omitempty"`

// RefreshToken is a token that's used by the application
	// (as opposed to the user) to refresh the access token
	// if it expires.
	RefreshToken string `json:"refresh_token,omitempty"`

// Expiry is the optional expiration time of the access token.
	//
	// If zero, TokenSource implementations will reuse the same
	// token forever and RefreshToken or equivalent
	// mechanisms for that TokenSource will not be used.
	Expiry time.Time `json:"expiry,omitempty"`

// raw optionally contains extra metadata from the server
	// when updating a token.
	raw interface{}

// expiryDelta is used to calculate when a token is considered
	// expired, by subtracting from Expiry. If zero, defaultExpiryDelta
	// is used.
	expiryDelta time.Duration
}

// Type returns t.TokenType if non-empty, else "Bearer".
func (t *Token) Type() string {
	if strings.EqualFold(t.TokenType, "bearer") {
		return "Bearer"
	}
	if strings.EqualFold(t.TokenType, "mac") {
		return "MAC"
	}
	if strings.EqualFold(t.TokenType, "basic") {
		return "Basic"
	}
	if t.TokenType != "" {
		return t.TokenType
	}
	return "Bearer"
}

// SetAuthHeader sets the Authorization header to r using the access
// token in t.
//
// This method is unnecessary when using Transport or an HTTP Client
// returned by this package.
func (t *Token) SetAuthHeader(r *http.Request) {
	r.Header.Set("Authorization", t.Type()+" "+t.AccessToken)
}

// WithExtra returns a new Token that's a clone of t, but using the
// provided raw extra map. This is only intended for use by packages
// implementing derivative OAuth2 flows.
func (t *Token) WithExtra(extra interface{}) *Token {
	t2 := new(Token)
	*t2 = *t
	t2.raw = extra
	return t2
}

// Extra returns an extra field.
// Extra fields are key-value pairs returned by the server as a
// part of the token retrieval response.
func (t *Token) Extra(key string) interface{} {
	if raw, ok := t.raw.(map[string]interface{}); ok {
		return raw[key]
	}

vals, ok := t.raw.(url.Values)
	if !ok {
		return nil
	}

v := vals.Get(key)
	switch s := strings.TrimSpace(v); strings.Count(s, ".") {
	case 0: // Contains no "."; try to parse as int
		if i, err := strconv.ParseInt(s, 10, 64); err == nil {
			return i
		}
	case 1: // Contains a single "."; try to parse as float
		if f, err := strconv.ParseFloat(s, 64); err == nil {
			return f
		}
	}

return v
}

// timeNow is time.Now but pulled out as a variable for tests.
var timeNow = time.Now

// expired reports whether the token is expired.
// t must be non-nil.
func (t *Token) expired() bool {
	if t.Expiry.IsZero() {
		return false
	}

expiryDelta := defaultExpiryDelta
	if t.expiryDelta != 0 {
		expiryDelta = t.expiryDelta
	}
	return t.Expiry.Round(0).Add(-expiryDelta).Before(timeNow())
}

// Valid reports whether t is non-nil, has an AccessToken, and is not expired.
func (t *Token) Valid() bool {
	return t != nil && t.AccessToken != "" && !t.expired()
}

// tokenFromInternal maps an *internal.Token struct into
// a *Token struct.
func tokenFromInternal(t *internal.Token) *Token {
	if t == nil {
		return nil
	}
	return &Token{
		AccessToken:  t.AccessToken,
		TokenType:    t.TokenType,
		RefreshToken: t.RefreshToken,
		Expiry:       t.Expiry,
		raw:          t.Raw,
	}
}

// retrieveToken takes a *Config and uses that to retrieve an *internal.Token.
// This token is then mapped from *internal.Token into an *oauth2.Token which is returned along
// with an error..
func retrieveToken(ctx context.Context, c *Config, v url.Values) (*Token, error) {
	tk, err := internal.RetrieveToken(ctx, c.ClientID, c.ClientSecret, c.Endpoint.TokenURL, v, internal.AuthStyle(c.Endpoint.AuthStyle), c.authStyleCache.Get())
	if err != nil {
		if rErr, ok := err.(*internal.RetrieveError); ok {
			return nil, (*RetrieveError)(rErr)
		}
		return nil, err
	}
	return tokenFromInternal(tk), nil
}

// RetrieveError is the error returned when the token endpoint returns a
// non-2XX HTTP status code or populates RFC 6749's 'error' parameter.
// https://datatracker.ietf.org/doc/html/rfc6749#section-5.2
type RetrieveError struct {
	Response *http.Response
	// Body is the body that was consumed by reading Response.Body.
	// It may be truncated.
	Body []byte
	// ErrorCode is RFC 6749's 'error' parameter.
	ErrorCode string
	// ErrorDescription is RFC 6749's 'error_description' parameter.
	ErrorDescription string
	// ErrorURI is RFC 6749's 'error_uri' parameter.
	ErrorURI string
}

func (r *RetrieveError) Error() string {
	if r.ErrorCode != "" {
		s := fmt.Sprintf("oauth2: %q", r.ErrorCode)
		if r.ErrorDescription != "" {
			s += fmt.Sprintf(" %q", r.ErrorDescription)
		}
		if r.ErrorURI != "" {
			s += fmt.Sprintf(" %q", r.ErrorURI)
		}
		return s
	}
	return fmt.Sprintf("oauth2: cannot fetch token: %v\nResponse: %s", r.Response.Status, r.Body)
}

${this.title}

Code Editor : token.go