Added check for parent integration_id when creating a webhook

refs https://github.com/TryGhost/Ghost/issues/12033
refs https://github.com/TryGhost/Ghost/issues/10567

- Creating a webhook without valid parent integration leads to orphaned webhook records, which shoult not ever happen
- This scenario is only possible for non-integration authentication,
because in case of integration being authenticated it's id is
automatically assigned to creatd webhook

core/server/api/canary/webhooks.js

@@ -14,20 +14,35 @@ module.exports = {
         options: [],
         data: [],
         permissions: true,
-        query(frame) {
+        async query(frame) {
-            return models.Webhook.getByEventAndTarget(
+            const isIntegrationRequest = frame.options.context && frame.options.context.integration && frame.options.context.integration.id;
+
+            // NOTE: this check can be removed once `webhooks.integration_id` gets foreigh ke constraint (Ghost 4.0)
+            if (!isIntegrationRequest && frame.data.webhooks[0].integration_id) {
+                const integration = await models.Integration.findOne({id: frame.data.webhooks[0].integration_id}, {context: {internal: true}});
+
+                if (!integration) {
+                    throw new errors.ValidationError({
+                        message: i18n.t('notices.data.validation.index.schemaValidationFailed', {
+                            key: 'integration_id'
+                        }),
+                        context: i18n.t('errors.api.webhooks.nonExistingIntegrationIdProvided.context'),
+                        help: i18n.t('errors.api.webhooks.nonExistingIntegrationIdProvided.help')
+                    });
+                }
+            }
+
+            const webhook = await models.Webhook.getByEventAndTarget(
                 frame.data.webhooks[0].event,
                 frame.data.webhooks[0].target_url,
                 frame.options
-            ).then((webhook) => {
-                if (webhook) {
-                    return Promise.reject(
-                        new errors.ValidationError({message: i18n.t('errors.api.webhooks.webhookAlreadyExists')})
             );
+
+            if (webhook) {
+                throw new errors.ValidationError({message: i18n.t('errors.api.webhooks.webhookAlreadyExists')});
             }
 
             return models.Webhook.add(frame.data.webhooks[0], frame.options);
-            });
         }
     },
 

core/server/translations/en.json

@@ -486,6 +486,10 @@
                 "noIntegrationIdProvided": {
                     "context": "You may only create webhooks with 'integration_id' when using session authentication."
                 },
+                "nonExistingIntegrationIdProvided": {
+                    "context": "'integration_id' value does not match any existing integration.",
+                    "help": "Provide 'integration_id' of existing integration."
+                },
                 "webhookAlreadyExists": "Target URL has already been used for this event."
             },
             "oembed": {
@@ -711,7 +715,7 @@
                     "valueIsNotInteger": "Value in [{tableName}.{columnKey}] is not an integer.",
                     "themeCannotBeActivated": "{themeName} cannot be activated because it is not currently installed.",
                     "validationFailed": "Validation ({validationName}) failed for {key}",
-                    "schemaValidationFailed": "Validation failed for '{key}'",
+                    "schemaValidationFailed": "Validation failed for '{key}'.",
                     "validationFailedTypes": {
                         "isLength": "Value in [{tableName}.{key}] exceeds maximum length of {max} characters."
                     }

test/api-acceptance/admin/webhooks_spec.js

@@ -17,18 +17,18 @@ describe('Webhooks API', function () {
                 request = supertest.agent(config.get('url'));
             })
             .then(function () {
-                return localUtils.doAuth(request);
+                return localUtils.doAuth(request, 'integrations');
             });
     });
 
-    it('Can creates a webhook', function () {
+    it('Can create a webhook', function () {
         let webhookData = {
             event: 'test.create',
             target_url: 'http://example.com/webhooks/test/extra/1',
             name: 'test',
             secret: 'thisissecret',
             api_version: 'v2',
-            integration_id: '12345'
+            integration_id: testUtils.DataGenerator.Content.integrations[0].id
         };
 
         return request.post(localUtils.API.getApiQuery('webhooks/'))
@@ -52,6 +52,14 @@ describe('Webhooks API', function () {
                 jsonResponse.webhooks[0].integration_id.should.equal(webhookData.integration_id);
 
                 should.not.exist(res.headers.location);
+            })
+            .then(() => {
+                return request.post(localUtils.API.getApiQuery('webhooks/'))
+                    .set('Origin', config.get('url'))
+                    .send({webhooks: [webhookData]})
+                    .expect('Content-Type', /json/)
+                    .expect('Cache-Control', testUtils.cacheRules.private)
+                    .expect(422);
             });
     });
 
@@ -114,7 +122,7 @@ describe('Webhooks API', function () {
             event: 'test.create',
             // a different target_url from above is needed to avoid an "already exists" error
             target_url: 'http://example.com/webhooks/test/2',
-            integration_id: '123423'
+            integration_id: testUtils.DataGenerator.Content.integrations[0].id
         };
 
         // create the webhook that is to be deleted