更名 node-ajax.js 到 ajax.js 且不再包含在浏览器版本中；剥离 ajax.js 对全局变量 AV 的依赖

Author: jysperm

lib/av.js

@@ -12,6 +12,7 @@ var AV = module.exports = {};
 AV._ = require('underscore');
 AV.VERSION = require('./version');
 AV.Promise = require('./promise');
+AV.XMLHttpRequest = require('./browserify-wrapper/xmlhttprequest').XMLHttpRequest;
 AV.localStorage = require('./localstorage');
 
 // 以下模块为了兼容原有代码，使用这种加载方式。
@@ -33,8 +34,10 @@ require('./status')(AV);
 require('./search')(AV);
 require('./insight')(AV);
 
-// Node.js platform specific
-require('./browserify-wrapper/node-ajax')(AV);
+// Node.js platform specific patches
+if (AV._isNode) {
+  AV._ajax = require('./browserify-wrapper/ajax');
+}
 
 // Backward compatibility
 AV.AV = AV;

lib/browserify-wrapper/ajax.js

@@ -0,0 +1,64 @@
+'use strict';
+
+var http = require('http');
+var https = require('https');
+var url = require('url');
+
+var Promise = require('../promise');
+var AV_VERSION = require('../version')
+
+// `keepAlive` option only work on Node.js 0.12+
+var httpAgent = new http.Agent({keepAlive: true});
+var httpsAgent = new https.Agent({keepAlive: true});
+
+module.exports = function _ajax(method, resourceUrl, data, success, error) {
+  var parsedUrl = url.parse(resourceUrl);
+  var promise = new Promise();
+
+  var transportModule = http;
+  var transportAgent = httpAgent;
+
+  if (parsedUrl.protocol === 'https:') {
+    transportModule = https;
+    transportAgent = httpsAgent;
+  }
+
+  var req = transportModule.request({
+    method: method,
+    protocol: parsedUrl.protocol,
+    hostname: parsedUrl.hostname,
+    port: parsedUrl.port,
+    path: parsedUrl.path,
+    agent: transportAgent,
+    headers: {
+      'Content-Type': 'text/plain',
+      'User-Agent': 'AV/' + AV_VERSION + ' (Node.js' + process.version + ')'
+    }
+  });
+
+  req.on('response', function(res) {
+    var responseText = '';
+
+    res.on('data', function(chunk) {
+      responseText += chunk.toString();
+    });
+
+    res.on('end', function() {
+      try {
+        promise.resolve(JSON.parse(responseText), res.statusCode, res);
+      } catch (err) {
+        promise.reject(err);
+      }
+    });
+  });
+
+  req.on('error', function(err) {
+    promise.reject(err);
+  });
+
+  req.end(data);
+  return promise._thenRunCallbacks({
+    success: success,
+    error: error
+  });
+}

lib/browserify-wrapper/node-ajax.js

@@ -40,6 +40,7 @@
   },
   "browser": {
     "react-native": false,
+    "./lib/browserify-wrapper/ajax.js": false,
     "./lib/browserify-wrapper/upload.js": "./lib/browserify-wrapper/upload-browser.js",
     "./lib/browserify-wrapper/xmlhttprequest.js": "./lib/browserify-wrapper/xmlhttprequest-browser.js",
     "./lib/browserify-wrapper/localStorage.js": "./lib/browserify-wrapper/localstorage-browser.js",