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fix(editor): Return early in ws message handler if no 'command' keyword is found (#7946)

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## Summary
Avoid processing websocket messages not n8n sent (filter on 'command'
keyword)
This commit is contained in:
Csaba Tuncsik 2023-12-08 13:42:50 +01:00 committed by GitHub
parent dcf12867b3
commit 5b2defc867
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 81 additions and 65 deletions
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29
packages/editor-ui/src/components/WorkflowPreview.vue
View file

@ -136,21 +136,22 @@ const onMouseLeave = () => {
};
const receiveMessage = ({ data }: MessageEvent) => {
if (data?.includes('"command"')) {
try {
const json = JSON.parse(data);
if (json.command === 'n8nReady') {
ready.value = true;
} else if (json.command === 'openNDV') {
nodeViewDetailsOpened.value = true;
} else if (json.command === 'closeNDV') {
nodeViewDetailsOpened.value = false;
} else if (json.command === 'error') {
emit('close');
}
} catch (e) {
console.error(e);
if (!data?.includes?.('"command"')) {
return;
}
try {
const json = JSON.parse(data);
if (json.command === 'n8nReady') {
ready.value = true;
} else if (json.command === 'openNDV') {
nodeViewDetailsOpened.value = true;
} else if (json.command === 'closeNDV') {
nodeViewDetailsOpened.value = false;
} else if (json.command === 'error') {
emit('close');
}
} catch (e) {
console.error(e);
}
};
const onDocumentScroll = () => {

14
packages/editor-ui/src/components/__tests__/WorkflowPreview.test.ts
View file

@ -247,4 +247,18 @@ describe('WorkflowPreview', () => {
expect(emitted()).toEqual({});
});
});
it('should not do anything if no "command" is sent in the message and the `includes` method cannot be applied to the data', async () => {
const { emitted } = renderComponent({
pinia,
props: {},
});
window.postMessage(null, '*');
await waitFor(() => {
expect(console.error).not.toHaveBeenCalled();
expect(emitted()).toEqual({});
});
});
});

103
packages/editor-ui/src/views/NodeView.vue
View file

@ -4312,58 +4312,59 @@ export default defineComponent({
}
},
async onPostMessageReceived(message: MessageEvent) {
if (message?.data?.includes('"command"')) {
try {
const json = JSON.parse(message.data);
if (json && json.command === 'openWorkflow') {
try {
await this.importWorkflowExact(json);
this.isExecutionPreview = false;
} catch (e) {
if (window.top) {
window.top.postMessage(
JSON.stringify({
command: 'error',
message: this.$locale.baseText('openWorkflow.workflowImportError'),
}),
'*',
);
}
this.showMessage({
title: this.$locale.baseText('openWorkflow.workflowImportError'),
message: (e as Error).message,
type: 'error',
});
}
} else if (json && json.command === 'openExecution') {
try {
// If this NodeView is used in preview mode (in iframe) it will not have access to the main app store
// so everything it needs has to be sent using post messages and passed down to child components
this.isProductionExecutionPreview = json.executionMode !== 'manual';
await this.openExecution(json.executionId);
this.isExecutionPreview = true;
} catch (e) {
if (window.top) {
window.top.postMessage(
JSON.stringify({
command: 'error',
message: this.$locale.baseText('nodeView.showError.openExecution.title'),
}),
'*',
);
}
this.showMessage({
title: this.$locale.baseText('nodeView.showError.openExecution.title'),
message: (e as Error).message,
type: 'error',
});
}
} else if (json?.command === 'setActiveExecution') {
this.workflowsStore.activeWorkflowExecution = json.execution;
}
} catch (e) {}
if (!message?.data?.includes?.('"command"')) {
return;
}
try {
const json = JSON.parse(message.data);
if (json && json.command === 'openWorkflow') {
try {
await this.importWorkflowExact(json);
this.isExecutionPreview = false;
} catch (e) {
if (window.top) {
window.top.postMessage(
JSON.stringify({
command: 'error',
message: this.$locale.baseText('openWorkflow.workflowImportError'),
}),
'*',
);
}
this.showMessage({
title: this.$locale.baseText('openWorkflow.workflowImportError'),
message: (e as Error).message,
type: 'error',
});
}
} else if (json && json.command === 'openExecution') {
try {
// If this NodeView is used in preview mode (in iframe) it will not have access to the main app store
// so everything it needs has to be sent using post messages and passed down to child components
this.isProductionExecutionPreview = json.executionMode !== 'manual';
await this.openExecution(json.executionId);
this.isExecutionPreview = true;
} catch (e) {
if (window.top) {
window.top.postMessage(
JSON.stringify({
command: 'error',
message: this.$locale.baseText('nodeView.showError.openExecution.title'),
}),
'*',
);
}
this.showMessage({
title: this.$locale.baseText('nodeView.showError.openExecution.title'),
message: (e as Error).message,
type: 'error',
});
}
} else if (json?.command === 'setActiveExecution') {
this.workflowsStore.activeWorkflowExecution = json.execution;
}
} catch (e) {}
},
async onImportWorkflowDataEvent(data: IDataObject) {
await this.importWorkflowData(data.data as IWorkflowDataUpdate, 'file');