EventManager: disable commands by default

Signed-off-by: Nicola Murino <nicola.murino@gmail.com>

internal/common/protocol_test.go

@@ -3928,6 +3928,11 @@ func TestEventRule(t *testing.T) {
 	err = os.WriteFile(uploadScriptPath, getUploadScriptContent(movedPath, "", 0), 0755)
 	assert.NoError(t, err)
 
+	dataprovider.EnabledActionCommands = []string{uploadScriptPath}
+	defer func() {
+		dataprovider.EnabledActionCommands = nil
+	}()
+
 	action1.Type = dataprovider.ActionTypeCommand
 	action1.Options = dataprovider.BaseEventActionOptions{
 		CmdConfig: dataprovider.EventActionCommandConfig{
@@ -4265,6 +4270,10 @@ func TestEventRuleDisabledCommand(t *testing.T) {
 			},
 		},
 	}
+	_, _, err = httpdtest.AddEventAction(a1, http.StatusBadRequest)
+	assert.NoError(t, err)
+	// Enable the command to allow saving
+	dataprovider.EnabledActionCommands = []string{a1.Options.CmdConfig.Cmd}
 	action1, _, err := httpdtest.AddEventAction(a1, http.StatusCreated)
 	assert.NoError(t, err)
 	action2, _, err := httpdtest.AddEventAction(a2, http.StatusCreated)
@@ -4312,8 +4321,8 @@ func TestEventRuleDisabledCommand(t *testing.T) {
 	}
 	rule, _, err := httpdtest.AddEventRule(r, http.StatusCreated)
 	assert.NoError(t, err)
-	// restrit command execution
+	// restrict command execution
-	dataprovider.EnabledActionCommands = []string{"/bin/ls"}
+	dataprovider.EnabledActionCommands = nil
 
 	lastReceivedEmail.reset()
 	// create a folder to trigger the rule
@@ -4335,8 +4344,6 @@ func TestEventRuleDisabledCommand(t *testing.T) {
 	assert.Contains(t, email.Data, fmt.Sprintf("Object name: %s object type: folder", folder.Name))
 	lastReceivedEmail.reset()
 
-	dataprovider.EnabledActionCommands = nil
-
 	_, err = httpdtest.RemoveFolder(folder, http.StatusOK)
 	assert.NoError(t, err)
 
@@ -4368,6 +4375,11 @@ func TestEventRuleProviderEvents(t *testing.T) {
 	err = os.WriteFile(saveObjectScriptPath, getSaveProviderObjectScriptContent(outPath, 0), 0755)
 	assert.NoError(t, err)
 
+	dataprovider.EnabledActionCommands = []string{saveObjectScriptPath}
+	defer func() {
+		dataprovider.EnabledActionCommands = nil
+	}()
+
 	a1 := dataprovider.BaseEventAction{
 		Name: "a1",
 		Type: dataprovider.ActionTypeCommand,
@@ -5200,6 +5212,11 @@ func TestEventActionCommandEnvVars(t *testing.T) {
 	envName := "MY_ENV"
 	uploadScriptPath := filepath.Join(os.TempDir(), "upload.sh")
 
+	dataprovider.EnabledActionCommands = []string{uploadScriptPath}
+	defer func() {
+		dataprovider.EnabledActionCommands = nil
+	}()
+
 	err := os.WriteFile(uploadScriptPath, getUploadScriptEnvContent(envName), 0755)
 	assert.NoError(t, err)
 	a1 := dataprovider.BaseEventAction{

internal/dataprovider/eventrule.go

@@ -59,7 +59,7 @@ var (
 		ActionTypeDataRetentionCheck, ActionTypePasswordExpirationCheck, ActionTypeUserExpirationCheck,
 		ActionTypeUserInactivityCheck, ActionTypeIDPAccountCheck, ActionTypeRotateLogs}
 	// EnabledActionCommands defines the system commands that can be executed via EventManager,
-	// an empty list means that any command is allowed to be executed.
+	// an empty list means that no command is allowed to be executed.
 	EnabledActionCommands []string
 )
 
@@ -455,9 +455,6 @@ func (c *EventActionHTTPConfig) GetHTTPClient() *http.Client {
 
 // IsActionCommandAllowed returns true if the specified command is allowed
 func IsActionCommandAllowed(cmd string) bool {
-	if len(EnabledActionCommands) == 0 {
-		return true
-	}
 	return slices.Contains(EnabledActionCommands, cmd)
 }
 

internal/httpd/httpd_test.go

@@ -1828,6 +1828,10 @@ func TestBasicActionRulesHandling(t *testing.T) {
 			},
 		},
 	}
+	dataprovider.EnabledActionCommands = []string{a.Options.CmdConfig.Cmd}
+	defer func() {
+		dataprovider.EnabledActionCommands = nil
+	}()
 	_, _, err = httpdtest.UpdateEventAction(a, http.StatusOK)
 	assert.NoError(t, err)
 	// invalid type
@@ -2362,13 +2366,24 @@ func TestEventActionValidation(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Contains(t, string(resp), "command is required")
 	action.Options.CmdConfig.Cmd = "relative"
+	dataprovider.EnabledActionCommands = []string{action.Options.CmdConfig.Cmd}
+	defer func() {
+		dataprovider.EnabledActionCommands = nil
+	}()
+
 	_, resp, err = httpdtest.AddEventAction(action, http.StatusBadRequest)
 	assert.NoError(t, err)
 	assert.Contains(t, string(resp), "invalid command, it must be an absolute path")
 	action.Options.CmdConfig.Cmd = filepath.Join(os.TempDir(), "cmd")
 	_, resp, err = httpdtest.AddEventAction(action, http.StatusBadRequest)
 	assert.NoError(t, err)
+	assert.Contains(t, string(resp), "is not allowed")
+
+	dataprovider.EnabledActionCommands = []string{action.Options.CmdConfig.Cmd}
+	_, resp, err = httpdtest.AddEventAction(action, http.StatusBadRequest)
+	assert.NoError(t, err)
 	assert.Contains(t, string(resp), "invalid command action timeout")
+
 	action.Options.CmdConfig.Timeout = 30
 	action.Options.CmdConfig.EnvVars = []dataprovider.KeyValue{
 		{
@@ -23318,6 +23333,10 @@ func TestWebEventAction(t *testing.T) {
 			},
 		},
 	}
+	dataprovider.EnabledActionCommands = []string{action.Options.CmdConfig.Cmd}
+	defer func() {
+		dataprovider.EnabledActionCommands = nil
+	}()
 	form.Set("type", fmt.Sprintf("%d", action.Type))
 	req, err = http.NewRequest(http.MethodPost, path.Join(webAdminEventActionPath, action.Name),
 		bytes.NewBuffer([]byte(form.Encode())))

templates/webadmin/eventaction.html

@@ -44,6 +44,11 @@ explicit grant from the SFTPGo Team (support@sftpgo.com).
                 <div class="col-md-9">
                     <select id="idType" name="type" class="form-select" data-control="i18n-select2" data-hide-search="true">
                         {{- range .ActionTypes}}
+                        {{- if eq .Value 2}}
+                            {{- if not $.EnabledCommands}}
+                                {{- continue}}
+                            {{- end}}
+                        {{- end}}
                         <option value="{{.Value}}" {{if eq $.Action.Type .Value }}selected{{end}} data-i18n="{{.Name}}"></option>
                         {{- end}}
                     </select>
@@ -400,21 +405,13 @@ explicit grant from the SFTPGo Team (support@sftpgo.com).
             <div class="form-group row action-type action-cmd mt-10">
                 <label for="idCmdPath" data-i18n="actions.types.command" class="col-md-3 col-form-label">Command</label>
                 <div class="col-md-9">
-                    <select id="idCmdPath" name="cmd_path" class="form-select" data-control="i18n-select2" data-hide-search="true">
+                    <select id="idCmdPath" name="cmd_path" class="form-select" data-control="i18n-select2" data-hide-search="false">
                         {{- range .EnabledCommands}}
                         <option value="{{.}}" {{if eq $.Action.Options.CmdConfig.Cmd . }}selected{{end}}>{{.}}</option>
                         {{- end}}
                     </select>
                 </div>
             </div>
-            {{- else}}
-            <div class="form-group row action-type action-cmd mt-10">
-                <label for="idCmdPath" data-i18n="actions.types.command" class="col-md-3 col-form-label">Command</label>
-                <div class="col-md-9">
-                    <input id="idCmdPath" type="text" class="form-control" name="cmd_path" value="{{.Action.Options.CmdConfig.Cmd}}" aria-describedby="idCmdPathHelp" />
-                    <div id="idCmdPathHelp" class="form-text" data-i18n="actions.command_help"></div>
-                </div>
-            </div>
             {{- end}}
 
             <div class="form-group row action-type action-cmd mt-10">