feat: fix SAML metadata URL and XML generation issue when enablePostBinding is enabled (#3354)

authz/authz.go

@@ -98,6 +98,7 @@ p, *, *, GET, /api/get-organization-names, *, *
 p, *, *, GET, /api/get-all-objects, *, *
 p, *, *, GET, /api/get-all-actions, *, *
 p, *, *, GET, /api/get-all-roles, *, *
+p, *, *, GET, /api/run-casbin-command, *, *
 p, *, *, GET, /api/get-invitation-info, *, *
 p, *, *, GET, /api/faceid-signin-begin, *, *
 `

controllers/casbin_cli_api.go

@@ -0,0 +1,114 @@
+// Copyright 2024 The Casdoor Authors. All Rights Reserved.
+//
+// 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 controllers
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+)
+
+func processArgsToTempFiles(args []string) ([]string, []string, error) {
+	tempFiles := []string{}
+	newArgs := []string{}
+	for i := 0; i < len(args); i++ {
+		if (args[i] == "-m" || args[i] == "-p") && i+1 < len(args) {
+			pattern := fmt.Sprintf("casbin_temp_%s_*.conf", args[i])
+			tempFile, err := os.CreateTemp("", pattern)
+			if err != nil {
+				return nil, nil, fmt.Errorf("failed to create temp file: %v", err)
+			}
+
+			_, err = tempFile.WriteString(args[i+1])
+			if err != nil {
+				tempFile.Close()
+				return nil, nil, fmt.Errorf("failed to write to temp file: %v", err)
+			}
+
+			tempFile.Close()
+			tempFiles = append(tempFiles, tempFile.Name())
+			newArgs = append(newArgs, args[i], tempFile.Name())
+			i++
+		} else {
+			newArgs = append(newArgs, args[i])
+		}
+	}
+	return tempFiles, newArgs, nil
+}
+
+// RunCasbinCommand
+// @Title RunCasbinCommand
+// @Tag Enforcer API
+// @Description Call Casbin CLI commands
+// @Success 200 {object} controllers.Response The Response object
+// @router /run-casbin-command [get]
+func (c *ApiController) RunCasbinCommand() {
+	language := c.Input().Get("language")
+	argString := c.Input().Get("args")
+
+	if language == "" {
+		language = "go"
+	}
+	// use "casbin-go-cli" by default, can be also "casbin-java-cli", "casbin-node-cli", etc.
+	// the pre-built binary of "casbin-go-cli" can be found at: https://github.com/casbin/casbin-go-cli/releases
+	binaryName := fmt.Sprintf("casbin-%s-cli", language)
+
+	_, err := exec.LookPath(binaryName)
+	if err != nil {
+		c.ResponseError(fmt.Sprintf("executable file: %s not found in PATH", binaryName))
+		return
+	}
+
+	// RBAC model & policy example:
+	// https://door.casdoor.com/api/run-casbin-command?language=go&args=["enforce", "-m", "[request_definition]\nr = sub, obj, act\n\n[policy_definition]\np = sub, obj, act\n\n[role_definition]\ng = _, _\n\n[policy_effect]\ne = some(where (p.eft == allow))\n\n[matchers]\nm = g(r.sub, p.sub) %26%26 r.obj == p.obj %26%26 r.act == p.act", "-p", "p, alice, data1, read\np, bob, data2, write\np, data2_admin, data2, read\np, data2_admin, data2, write\ng, alice, data2_admin", "alice", "data1", "read"]
+	// Casbin CLI usage:
+	// https://github.com/jcasbin/casbin-java-cli?tab=readme-ov-file#get-started
+	var args []string
+	err = json.Unmarshal([]byte(argString), &args)
+	if err != nil {
+		c.ResponseError(err.Error())
+		return
+	}
+
+	tempFiles, processedArgs, err := processArgsToTempFiles(args)
+	defer func() {
+		for _, file := range tempFiles {
+			os.Remove(file)
+		}
+	}()
+	if err != nil {
+		c.ResponseError(err.Error())
+		return
+	}
+
+	command := exec.Command(binaryName, processedArgs...)
+	outputBytes, err := command.CombinedOutput()
+	if err != nil {
+		errorString := err.Error()
+		if outputBytes != nil {
+			output := string(outputBytes)
+			errorString = fmt.Sprintf("%s, error: %s", output, err.Error())
+		}
+
+		c.ResponseError(errorString)
+		return
+	}
+
+	output := string(outputBytes)
+	output = strings.TrimSuffix(output, "\n")
+	c.ResponseOk(output)
+}

object/saml_idp.go

@@ -222,10 +222,13 @@ func GetSamlMeta(application *Application, host string, enablePostBinding bool)
 	originFrontend, originBackend := getOriginFromHost(host)
 
 	idpLocation := ""
+	idpBinding := ""
 	if enablePostBinding {
 		idpLocation = fmt.Sprintf("%s/api/saml/redirect/%s/%s", originBackend, application.Owner, application.Name)
+		idpBinding = "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
 	} else {
 		idpLocation = fmt.Sprintf("%s/login/saml/authorize/%s/%s", originFrontend, application.Owner, application.Name)
+		idpBinding = "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect"
 	}
 
 	d := IdpEntityDescriptor{
@@ -258,7 +261,7 @@ func GetSamlMeta(application *Application, host string, enablePostBinding bool)
 				{Xmlns: "urn:oasis:names:tc:SAML:2.0:assertion", Name: "Name", NameFormat: "urn:oasis:names:tc:SAML:2.0:attrname-format:basic", FriendlyName: "Name"},
 			},
 			SingleSignOnService: SingleSignOnService{
-				Binding:  "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect",
+				Binding:  idpBinding,
 				Location: idpLocation,
 			},
 			ProtocolSupportEnumeration: "urn:oasis:names:tc:SAML:2.0:protocol",

routers/router.go

@@ -174,6 +174,8 @@ func initAPI() {
 	beego.Router("/api/get-all-actions", &controllers.ApiController{}, "GET:GetAllActions")
 	beego.Router("/api/get-all-roles", &controllers.ApiController{}, "GET:GetAllRoles")
 
+	beego.Router("/api/run-casbin-command", &controllers.ApiController{}, "GET:RunCasbinCommand")
+
 	beego.Router("/api/get-sessions", &controllers.ApiController{}, "GET:GetSessions")
 	beego.Router("/api/get-session", &controllers.ApiController{}, "GET:GetSingleSession")
 	beego.Router("/api/update-session", &controllers.ApiController{}, "POST:UpdateSession")

web/src/ApplicationEditPage.js

@@ -765,7 +765,7 @@ class ApplicationEditPage extends React.Component {
             />
             <br />
             <Button style={{marginBottom: "10px"}} type="primary" shape="round" icon={<CopyOutlined />} onClick={() => {
-              copy(`${window.location.origin}/api/saml/metadata?application=admin/${encodeURIComponent(this.state.applicationName)}&post=${this.state.application.enableSamlPostBinding}`);
+              copy(`${window.location.origin}/api/saml/metadata?application=admin/${encodeURIComponent(this.state.applicationName)}&enablePostBinding=${this.state.application.enableSamlPostBinding}`);
               Setting.showMessage("success", i18next.t("general:Copied to clipboard successfully"));
             }}
             >