Initial QSfera import

Server/vendor/github.com/libregraph/lico/identifier/cookie.go

@@ -0,0 +1,202 @@
+/*
+ * Copyright 2017-2019 Kopano and its licensors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package identifier
+
+import (
+	"encoding/base64"
+	"net/http"
+
+	"golang.org/x/crypto/blake2b"
+)
+
+const (
+	consentCookieNamePrefix = "__Secure-KKTC" // Kopano Konnect Temorary Consent
+	stateCookieNamePrefix   = "__Secure-KKTS" // Kopano Konnect Temporary State
+)
+
+func (i *Identifier) setLogonCookie(rw http.ResponseWriter, value string) error {
+	cookie := http.Cookie{
+		Name:  i.logonCookieName,
+		Value: value,
+
+		Path:     i.pathPrefix + "/identifier/_/",
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: i.logonCookieSameSite,
+	}
+	http.SetCookie(rw, &cookie)
+
+	return nil
+}
+
+func (i *Identifier) getLogonCookie(req *http.Request) (*http.Cookie, error) {
+	return req.Cookie(i.logonCookieName)
+}
+
+func (i *Identifier) removeLogonCookie(rw http.ResponseWriter) error {
+	cookie := http.Cookie{
+		Name: i.logonCookieName,
+
+		Path:     i.pathPrefix + "/identifier/_/",
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: i.logonCookieSameSite,
+
+		Expires: farPastExpiryTime,
+	}
+	http.SetCookie(rw, &cookie)
+
+	return nil
+}
+
+func (i *Identifier) setConsentCookie(rw http.ResponseWriter, cr *ConsentRequest, value string) error {
+	name, err := i.getConsentCookieName(cr)
+	if err != nil {
+		return err
+	}
+
+	cookie := http.Cookie{
+		Name:   name,
+		Value:  value,
+		MaxAge: 60,
+
+		Path:     i.pathPrefix + "/identifier/_/",
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: i.consentCookieSameSite,
+	}
+	http.SetCookie(rw, &cookie)
+
+	return nil
+}
+
+func (i *Identifier) getConsentCookie(req *http.Request, cr *ConsentRequest) (*http.Cookie, error) {
+	name, err := i.getConsentCookieName(cr)
+	if err != nil {
+		return nil, err
+	}
+
+	return req.Cookie(name)
+}
+
+func (i *Identifier) removeConsentCookie(rw http.ResponseWriter, req *http.Request, cr *ConsentRequest) error {
+	name, err := i.getConsentCookieName(cr)
+	if err != nil {
+		return nil
+	}
+
+	cookie := http.Cookie{
+		Name: name,
+
+		Path:     i.pathPrefix + "/identifier/_/",
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: i.consentCookieSameSite,
+
+		Expires: farPastExpiryTime,
+	}
+	http.SetCookie(rw, &cookie)
+
+	return nil
+}
+
+func (i *Identifier) getConsentCookieName(cr *ConsentRequest) (string, error) {
+	// Consent cookie names are based on parameters in the request.
+	hasher, err := blake2b.New256(nil)
+	if err != nil {
+		return "", err
+	}
+
+	hasher.Write([]byte(cr.State))
+	hasher.Write([]byte("h"))
+	hasher.Write([]byte(cr.ClientID))
+	hasher.Write([]byte("e"))
+	hasher.Write([]byte(cr.RawRedirectURI))
+	hasher.Write([]byte("l"))
+	hasher.Write([]byte(cr.Ref))
+	hasher.Write([]byte("o"))
+	hasher.Write([]byte(cr.Nonce))
+
+	name := base64.RawURLEncoding.EncodeToString(hasher.Sum(nil))
+	return consentCookieNamePrefix + "-" + name, nil
+}
+
+func (i *Identifier) setStateCookie(rw http.ResponseWriter, scope string, state string, value string) error {
+	name, err := i.getStateCookieName(state)
+	if err != nil {
+		return err
+	}
+
+	cookie := http.Cookie{
+		Name:   name,
+		Value:  value,
+		MaxAge: 600,
+
+		Path:     i.pathPrefix + "/identifier/" + scope,
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: i.stateCookieSameSite,
+	}
+	http.SetCookie(rw, &cookie)
+
+	return nil
+}
+
+func (i *Identifier) getStateCookie(req *http.Request, state string) (*http.Cookie, error) {
+	name, err := i.getStateCookieName(state)
+	if err != nil {
+		return nil, err
+	}
+
+	return req.Cookie(name)
+}
+
+func (i *Identifier) removeStateCookie(rw http.ResponseWriter, req *http.Request, scope string, state string) error {
+	name, err := i.getStateCookieName(state)
+	if err != nil {
+		return nil
+	}
+
+	cookie := http.Cookie{
+		Name: name,
+
+		Path:     i.pathPrefix + "/identifier/" + scope,
+		Secure:   true,
+		HttpOnly: true,
+		SameSite: i.stateCookieSameSite,
+
+		Expires: farPastExpiryTime,
+	}
+	http.SetCookie(rw, &cookie)
+
+	return nil
+}
+
+func (i *Identifier) getStateCookieName(state string) (string, error) {
+	// State cookie names are based on the state value.
+	hasher, err := blake2b.New256(nil)
+	if err != nil {
+		return "", err
+	}
+
+	hasher.Write([]byte(state))
+
+	name := base64.RawURLEncoding.EncodeToString(hasher.Sum(nil))
+
+	return stateCookieNamePrefix + "-" + name, nil
+}