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restic/vendor/github.com/Azure/go-autorest/autorest/azure/cli/token.go
2017-09-21 17:48:45 +02:00

90 lines
2.7 KiB
Go

package cli
import (
"encoding/json"
"fmt"
"os"
"strconv"
"time"
"github.com/Azure/go-autorest/autorest/adal"
"github.com/Azure/go-autorest/autorest/date"
"github.com/mitchellh/go-homedir"
)
// Token represents an AccessToken from the Azure CLI
type Token struct {
AccessToken string `json:"accessToken"`
Authority string `json:"_authority"`
ClientID string `json:"_clientId"`
ExpiresOn string `json:"expiresOn"`
IdentityProvider string `json:"identityProvider"`
IsMRRT bool `json:"isMRRT"`
RefreshToken string `json:"refreshToken"`
Resource string `json:"resource"`
TokenType string `json:"tokenType"`
UserID string `json:"userId"`
}
// ToADALToken converts an Azure CLI `Token`` to an `adal.Token``
func (t Token) ToADALToken() (converted adal.Token, err error) {
tokenExpirationDate, err := ParseExpirationDate(t.ExpiresOn)
if err != nil {
err = fmt.Errorf("Error parsing Token Expiration Date %q: %+v", t.ExpiresOn, err)
return
}
difference := tokenExpirationDate.Sub(date.UnixEpoch())
converted = adal.Token{
AccessToken: t.AccessToken,
Type: t.TokenType,
ExpiresIn: "3600",
ExpiresOn: strconv.Itoa(int(difference.Seconds())),
RefreshToken: t.RefreshToken,
Resource: t.Resource,
}
return
}
// AccessTokensPath returns the path where access tokens are stored from the Azure CLI
func AccessTokensPath() (string, error) {
return homedir.Expand("~/.azure/accessTokens.json")
}
// ParseExpirationDate parses either a Azure CLI or CloudShell date into a time object
func ParseExpirationDate(input string) (*time.Time, error) {
// CloudShell (and potentially the Azure CLI in future)
expirationDate, cloudShellErr := time.Parse(time.RFC3339, input)
if cloudShellErr != nil {
// Azure CLI (Python) e.g. 2017-08-31 19:48:57.998857 (plus the local timezone)
const cliFormat = "2006-01-02 15:04:05.999999"
expirationDate, cliErr := time.ParseInLocation(cliFormat, input, time.Local)
if cliErr == nil {
return &expirationDate, nil
}
return nil, fmt.Errorf("Error parsing expiration date %q.\n\nCloudShell Error: \n%+v\n\nCLI Error:\n%+v", input, cloudShellErr, cliErr)
}
return &expirationDate, nil
}
// LoadTokens restores a set of Token objects from a file located at 'path'.
func LoadTokens(path string) ([]Token, error) {
file, err := os.Open(path)
if err != nil {
return nil, fmt.Errorf("failed to open file (%s) while loading token: %v", path, err)
}
defer file.Close()
var tokens []Token
dec := json.NewDecoder(file)
if err = dec.Decode(&tokens); err != nil {
return nil, fmt.Errorf("failed to decode contents of file (%s) into a `cli.Token` representation: %v", path, err)
}
return tokens, nil
}