Support for data_base64 when event data is Binary

Signed-off-by: Fabio José <fabiojose@gmail.com>

lib/specs/spec_1.js

@@ -9,7 +9,8 @@ const {
   isInteger,
   isString,
   isDate,
-  isBinary
+  isBinary,
+  clone
 } = require("../utils/fun.js");
 
 const isValidType = (v) =>
@@ -77,6 +78,32 @@ function Spec1(_caller) {
   this.caller.prototype.getSubject = function(){
    return this.spec.getSubject();
   };
+
+  // format() method override
+  this.caller.prototype.format = function(){
+    // Check the constraints
+    this.spec.check();
+
+    // Check before getData() call
+    let isbin = isBinary(this.spec.payload[RESERVED_ATTRIBUTES.data]);
+
+    // May be used, if isbin==true
+    let payload = clone(this.spec.payload);
+
+    // To run asData()
+    this.getData();
+
+    // Handle when is binary, creating the data_base64
+    if(isbin) {
+      payload[RESERVED_ATTRIBUTES.data_base64] = this.spec.payload[RESERVED_ATTRIBUTES.data];
+      delete payload[RESERVED_ATTRIBUTES.data];
+
+      return this.formatter.format(payload);
+    }
+
+    // Then, format
+    return this.formatter.format(this.spec.payload);
+  };
 }
 
 /*

test/http_binding_1.js

@@ -2,6 +2,7 @@ const expect = require("chai").expect;
 const nock = require("nock");
 const http = require("http");
 const request = require("request");
+const {asBase64} = require("../lib/utils/fun.js");
 
 const BinaryHTTPEmitter =
   require("../lib/bindings/http/emitter_binary_1.js");
@@ -38,6 +39,8 @@ const cloudevent =
     .addExtension(ext1Name, ext1Value)
     .addExtension(ext2Name, ext2Value);
 
+const dataString = ")(*~^my data for ce#@#$%"
+
 const webhook = "https://cloudevents.io/webhook/v1";
 const httpcfg = {
   method : "POST",
@@ -45,6 +48,7 @@ const httpcfg = {
 };
 
 const binary = new BinaryHTTPEmitter(httpcfg);
+const structured = new v1.StructuredHTTPEmitter(httpcfg);
 
 describe("HTTP Transport Binding - Version 1.0", () => {
   beforeEach(() => {
@@ -54,6 +58,65 @@ describe("HTTP Transport Binding - Version 1.0", () => {
       .reply(201, {status: "accepted"});
   });
 
+  describe("Structured", () => {
+    describe("JSON Format", () => {
+      it("requires '" + contentType + "' Content-Type in the header", () => {
+        return structured.emit(cloudevent)
+          .then((response) => {
+            expect(response.config.headers["Content-Type"])
+              .to.equal(contentType);
+          });
+      });
+
+      it("the request payload should be correct", () => {
+        return structured.emit(cloudevent)
+          .then((response) => {
+            expect(JSON.parse(response.config.data))
+              .to.deep.equal(cloudevent.format());
+          });
+      });
+
+      describe("Binary event data", () => {
+        it("the request payload should be correct when data is binary", () => {
+          let bindata = Uint32Array.from(dataString, (c) => c.codePointAt(0));
+          let expected = asBase64(bindata);
+          let binevent =
+            new Cloudevent(v1.Spec)
+              .type(type)
+              .source(source)
+              .dataContentType("text/plain")
+              .data(bindata)
+              .addExtension(ext1Name, ext1Value)
+              .addExtension(ext2Name, ext2Value);
+
+          return structured.emit(binevent)
+            .then((response) => {
+              expect(JSON.parse(response.config.data).data_base64)
+                .to.equal(expected);
+            });
+        });
+
+        it("the payload must have 'data_base64' when data is binary", () => {
+          let binevent =
+            new Cloudevent(v1.Spec)
+              .type(type)
+              .source(source)
+              .dataContentType("text/plain")
+              .data(Uint32Array.from(dataString, (c) => c.codePointAt(0)))
+              .addExtension(ext1Name, ext1Value)
+              .addExtension(ext2Name, ext2Value);
+
+          return structured.emit(binevent)
+            .then((response) => {
+              console.log(response.config.data);
+              expect(JSON.parse(response.config.data))
+                .to.have.property("data_base64");
+            });
+        });
+      });
+    });
+  });
+
   describe("Binary", () => {
     describe("JSON Format", () => {
       it("requires '" + cloudevent.getDataContentType() + "' Content-Type in the header", () => {

test/spec_1_tests.js

@@ -2,6 +2,7 @@ const expect = require("chai").expect;
 const Spec1 = require("../lib/specs/spec_1.js");
 const Cloudevent = require("../index.js");
 const uuid  = require("uuid/v4");
+const {asBase64} = require("../lib/utils/fun.js");
 
 const id = uuid();
 const type   = "com.github.pull.create";
@@ -227,12 +228,13 @@ describe("CloudEvents Spec v1.0", () => {
     it("should be ok when type is 'Uint32Array' for 'Binary'", () => {
       let dataString = ")(*~^my data for ce#@#$%"
 
-      let expected = Uint32Array.from(dataString, (c) => c.codePointAt(0));;
+      let dataBinary = Uint32Array.from(dataString, (c) => c.codePointAt(0));
+      let expected = asBase64(dataBinary);
       let olddct  = cloudevent.getDataContentType();
 
       cloudevent
         .dataContentType("text/plain")
-        .data(expected);
+        .data(dataBinary);
       expect(cloudevent.getData()).to.deep.equal(expected);
 
       cloudevent.dataContentType(olddct);