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context.go
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context.go
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package girder
import (
"errors"
"fmt"
"net/url"
"strconv"
"strings"
"github.com/sirupsen/logrus"
)
// Context stores the entire context needed to run a sync command
type Context struct {
Auth string
URL string
Logger *logrus.Logger
Destination string
ResourceMap ResourceMap
}
func GetValidURL(maybeInvalidURL string) (string, error) {
tempCtx := new(Context)
tempCtx.URL = maybeInvalidURL
tempCtx.Logger = logrus.New()
u, err := url.Parse(maybeInvalidURL)
if err != nil {
return "", err
}
// for URLs without schemes, just force https
if u.Scheme == "" {
u.Scheme = "https"
tempCtx.URL = u.String()
u, _ = url.Parse(tempCtx.URL)
}
release := new(GirderRelease)
httpErr := new(GirderError)
resp, err := Get(tempCtx, "describe", release, httpErr)
if err != nil || resp.StatusCode != 200 {
// try tacking /api/v1 on the end of the url
u.Path = strings.TrimPrefix(u.Path, "/")
u.Path = strings.TrimSuffix(u.Path, "/")
u.Path += "/api/v1"
tempCtx.URL = u.String()
_, err := Get(tempCtx, "describe", release, httpErr)
if err != nil {
return "", fmt.Errorf("failed to connect to %s", maybeInvalidURL)
}
}
return tempCtx.URL, nil
}
func (c *Context) CheckMinimumVersion() error {
release := new(GirderRelease)
httpErr := new(GirderError)
resp, err := Get(c, "system/version", release, httpErr)
if err != nil {
return err
} else if resp.StatusCode != 200 {
return httpErr
}
version := ""
if release.Release != "" {
version = release.Release
} else if release.APIVersion != "" {
version = release.APIVersion
} else {
return errors.New("unable to determine version of remote girder version")
}
parts := strings.SplitN(version, ".", 3)
x, y := parts[0], parts[1]
major, _ := strconv.Atoi(x)
minor, _ := strconv.Atoi(y)
if int(major) < 2 || (int(major) == 2 && minor < int(3)) {
return fmt.Errorf("girder located at %s is version %s but rivet requires >= 2.3.0", c.URL, version)
}
return nil
}
func (c *Context) ValidateAuth() error {
if strings.Index(c.Auth, ":") != -1 {
// try username/password
token := new(GirderTokenResponse)
httpErr := new(GirderError)
resp, err := GetBasicAuth(c, c.Auth, "user/authentication", token, httpErr)
if err != nil {
return err
} else if resp.StatusCode != 200 {
return httpErr
}
c.Auth = token.AuthToken.Token
c.Logger.Debugf("authenticated with username/password (user %s)", token.User.Email)
return nil
} else if len(c.Auth) == 40 {
// try api key
token := new(GirderTokenResponse)
httpErr := new(GirderError)
resp, err := Post(c, fmt.Sprintf("api_key/token?key=%s", c.Auth), nil, token, httpErr)
if err != nil {
return err
} else if resp.StatusCode != 200 {
return httpErr
}
c.Auth = token.AuthToken.Token
c.Logger.Debugf("authenticated with api key (user %s)", token.User.ID)
return nil
} else if len(c.Auth) == 64 {
// try token
user := new(GirderUser)
httpErr := new(GirderError)
resp, err := Get(c, "user/me", user, httpErr)
if err != nil {
return err
} else if resp.StatusCode != 200 {
return httpErr
} else if user.Email == "" {
// account for the "null user"
return errors.New("failed to authenticate")
}
c.Logger.Debugf("authenticated as %s", user.Email)
return nil
} else {
return errors.New("Unable to validate credentials, have they expired?")
}
}