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authentik/internal/outpost/proxyv2/application/mode_common.go

82 lines
2.8 KiB
Go

package application
import (
"encoding/base64"
"fmt"
"net/http"
"strings"
"goauthentik.io/api"
"goauthentik.io/internal/constants"
)
func (a *Application) addHeaders(headers http.Header, c *Claims) {
// https://goauthentik.io/docs/providers/proxy/proxy
// Legacy headers, remove after 2022.1
headers.Set("X-Auth-Username", c.PreferredUsername)
headers.Set("X-Auth-Groups", strings.Join(c.Groups, "|"))
headers.Set("X-Forwarded-Email", c.Email)
headers.Set("X-Forwarded-Preferred-Username", c.PreferredUsername)
headers.Set("X-Forwarded-User", c.Sub)
// New headers, unique prefix
headers.Set("X-authentik-username", c.PreferredUsername)
headers.Set("X-authentik-groups", strings.Join(c.Groups, "|"))
headers.Set("X-authentik-email", c.Email)
headers.Set("X-authentik-name", c.Name)
headers.Set("X-authentik-uid", c.Sub)
headers.Set("X-authentik-jwt", c.RawToken)
// System headers
headers.Set("X-authentik-meta-jwks", a.proxyConfig.OidcConfiguration.JwksUri)
headers.Set("X-authentik-meta-outpost", a.outpostName)
headers.Set("X-authentik-meta-provider", a.proxyConfig.Name)
headers.Set("X-authentik-meta-app", a.proxyConfig.AssignedApplicationSlug)
headers.Set("X-authentik-meta-version", constants.OutpostUserAgent())
userAttributes := c.Proxy.UserAttributes
// Attempt to set basic auth based on user's attributes
if *a.proxyConfig.BasicAuthEnabled {
var ok bool
var password string
if password, ok = userAttributes[*a.proxyConfig.BasicAuthPasswordAttribute].(string); !ok {
password = ""
}
// Check if we should use email or a custom attribute as username
var username string
if username, ok = userAttributes[*a.proxyConfig.BasicAuthUserAttribute].(string); !ok {
username = c.Email
}
authVal := base64.StdEncoding.EncodeToString([]byte(username + ":" + password))
a.log.WithField("username", username).Trace("setting http basic auth")
headers.Set("Authorization", fmt.Sprintf("Basic %s", authVal))
}
// Check if user has additional headers set that we should sent
if additionalHeaders, ok := userAttributes["additionalHeaders"].(map[string]interface{}); ok {
a.log.WithField("headers", additionalHeaders).Trace("setting additional headers")
if additionalHeaders == nil {
return
}
for key, value := range additionalHeaders {
headers.Set(key, toString(value))
}
}
}
func (a *Application) IsAllowlisted(r *http.Request) bool {
for _, u := range a.UnauthenticatedRegex {
var testString string
if a.Mode() == api.PROXYMODE_PROXY || a.Mode() == api.PROXYMODE_FORWARD_SINGLE {
testString = r.URL.Path
} else {
testString = r.URL.String()
}
a.log.WithField("regex", u.String()).WithField("url", testString).Trace("Matching URL against allow list")
if u.MatchString(testString) {
return true
}
}
return false
}