feat(oas31): display file upload input when contentMediaType or contentEncoding is present

src/core/plugins/oas31/oas3-extensions/fn.js

@@ -1,12 +1,45 @@
 /**
  * @prettier
  */
+import { Map } from "immutable"
+import isPlainObject from "lodash/isPlainObject"
 
 export const makeIsFileUploadIntended = (getSystem) => {
   const isFileUploadIntended = (schema, mediaType = null) => {
     const { fn } = getSystem()
 
-    return fn.isFileUploadIntendedOAS30(schema, mediaType)
+    /**
+     *  Return `true` early if the media type indicates a file upload
+     *  or if a combination of type: `string` and format: `binary/byte` is detected.
+     *  This ensures support for empty Media Type Objects,
+     *  as the schema check is performed later.
+     */
+    const isFileUploadIntendedOAS30 = fn.isFileUploadIntendedOAS30(
+      schema,
+      mediaType
+    )
+
+    if (isFileUploadIntendedOAS30) {
+      return true
+    }
+
+    const isSchemaImmutable = Map.isMap(schema)
+
+    if (!isSchemaImmutable && !isPlainObject(schema)) {
+      return false
+    }
+
+    const contentMediaType = isSchemaImmutable
+      ? schema.get("contentMediaType")
+      : schema.contentMediaType
+    const contentEncoding = isSchemaImmutable
+      ? schema.get("contentEncoding")
+      : schema.contentEncoding
+
+    return (
+      (typeof contentMediaType === "string" && contentMediaType !== "") ||
+      (typeof contentEncoding === "string" && contentEncoding !== "")
+    )
   }
 
   return isFileUploadIntended

test/e2e-cypress/e2e/features/plugins/oas31/oas31-request-body-upload-file.cy.js

@@ -199,6 +199,50 @@ describe("OpenAPI 3.1 Request Body upload file button", () => {
     })
   })
 
+  describe("schema contentMediaType is a non-empty string", () => {
+    beforeEach(() => {
+      cy.get("#operations-default-uploadSchemaContentMediaType").click()
+    })
+
+    it("should display description with the correct content type", () => {
+      cy.get(
+        ".opblock-section-request-body .opblock-description-wrapper i"
+      ).should(
+        "have.text",
+        "Example values are not available for application/x-custom media types."
+      )
+    })
+
+    it("should display a file upload button", () => {
+      cy.get(".try-out__btn").click()
+      cy.get(
+        ".opblock-section-request-body .opblock-description-wrapper input"
+      ).should("have.prop", "type", "file")
+    })
+  })
+
+  describe("schema contentEncoding is a non-empty string", () => {
+    beforeEach(() => {
+      cy.get("#operations-default-uploadSchemaContentEncoding").click()
+    })
+
+    it("should display description with the correct content type", () => {
+      cy.get(
+        ".opblock-section-request-body .opblock-description-wrapper i"
+      ).should(
+        "have.text",
+        "Example values are not available for application/x-custom media types."
+      )
+    })
+
+    it("should display a file upload button", () => {
+      cy.get(".try-out__btn").click()
+      cy.get(
+        ".opblock-section-request-body .opblock-description-wrapper input"
+      ).should("have.prop", "type", "file")
+    })
+  })
+
   describe("multipart/form-data object property with schema type string and format binary", () => {
     beforeEach(() => {
       cy.get("#operations-default-uploadPropertySchemaFormatBinary").click()
@@ -254,4 +298,30 @@ describe("OpenAPI 3.1 Request Body upload file button", () => {
       ).should("have.prop", "type", "file")
     })
   })
+
+  describe("multipart/form-data object property schema has contentMediaType with non-empty string", () => {
+    beforeEach(() => {
+      cy.get("#operations-default-uploadPropertySchemaContentMediaType").click()
+    })
+
+    it("should display a file upload button", () => {
+      cy.get(".try-out__btn").click()
+      cy.get(
+        ".opblock-section-request-body .opblock-description-wrapper input"
+      ).should("have.prop", "type", "file")
+    })
+  })
+
+  describe("multipart/form-data object property schema has contentEncoding with non-empty string", () => {
+    beforeEach(() => {
+      cy.get("#operations-default-uploadPropertySchemaContentEncoding").click()
+    })
+
+    it("should display a file upload button", () => {
+      cy.get(".try-out__btn").click()
+      cy.get(
+        ".opblock-section-request-body .opblock-description-wrapper input"
+      ).should("have.prop", "type", "file")
+    })
+  })
 })

test/e2e-cypress/static/documents/features/oas31-request-body-upload-file.yaml

@@ -12,10 +12,14 @@ info:
     * schema type is `string` and format is `binary` (no matter what content type)
     * schema union type includes `string` and format is `byte` (no matter what content type)
     * schema union type includes `string` and format is `binary` (no matter what content type)
+    * schema `contentMediaType` is present and is a non-empty `string`
+    * schema `contentEncoding` is present and is a non-empty `string`
     * multipart/form-data object property schema type is `string` and format is `byte`
     * multipart/form-data object property schema type is `string` and format is `binary`
     * multipart/form-data object property schema union type includes `string` and format is `byte`
     * multipart/form-data object property schema union type includes `string` and format is `binary`
+    * multipart/form-data object property schema `contentMediaType` is present and is a non-empty `string` 
+    * multipart/form-data object property schema `contentEncoding` is present and is a non-empty `string`
   version: "1.0.0"
 paths:
   /upload-application-octet-stream:
@@ -96,6 +100,22 @@ paths:
                 - object
                 - string
               format: byte
+  /upload-schema-contentMediaType:
+    post:
+      operationId: uploadSchemaContentMediaType
+      requestBody:
+        content:
+          application/x-custom:
+            schema:
+              contentMediaType: application/x-custom
+  /upload-schema-contentEncoding:
+    post:
+      operationId: uploadSchemaContentEncoding
+      requestBody:
+        content:
+          application/x-custom:
+            schema:
+              contentEncoding: base64
   /upload-property-schema-format-binary:
     post:
       operationId: uploadPropertySchemaFormatBinary
@@ -148,3 +168,25 @@ paths:
                     - object 
                     - string
                   format: byte
+  /upload-property-schema-contentMediaType:
+    post:
+      operationId: uploadPropertySchemaContentMediaType
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              type: object
+              properties:
+                file:
+                  contentMediaType: application/x-custom
+  /upload-property-schema-contentEncoding:
+    post:
+      operationId: uploadPropertySchemaContentEncoding
+      requestBody:
+        content:
+          multipart/form-data:
+            schema:
+              type: object
+              properties:
+                file:
+                  contentEncoding: base64