缩小base64包

package.json

@@ -30,7 +30,6 @@
   "dependencies": {
     "body-parser": "^1.18.3",
     "express": "^4.16.3",
-    "image-to-base64": "^2.0.1",
     "md5": "^2.2.1",
     "mongodb": "^3.1.10",
     "redis": "^2.8.0"

src/cxmooc-tools/chaoxing/chaoxing.js

@@ -5,7 +5,6 @@ const common = require('../common');
 const until = require('./until');
 const Video = require('./video');
 const Topic = require('./topic');
-const image2base64 = require('image-to-base64');
 
 module.exports = function () {
     let self = this;
@@ -174,20 +173,20 @@ module.exports = function () {
             }, (config.interval || 0.1) * 60000);
         }
         //监控验证码
-        self.monitorVcode();
+        config.auto && self.monitorVcode();
     }
 
     this.monitorVcode = function () {
         //验证码监控加载
         let hookGetVarCode = window.getVarCode;
         window.getVarCode = function () {
+            let vcodeimg = document.createElement('img');
             let img = document.getElementById('imgVerCode');
-            image2base64('/img/code?' + new Date().getTime()).then(
-                (response) => {
-                    img.src = 'data:image/jpg;base64,' + response
-                    //TODO:验证码识别
-                }
-            )
+            $(vcodeimg).on('load', function () {
+                img.src = 'data:' + common.getImageBase64(vcodeimg, 'jpg');
+                //TODO:验证码识别
+            });
+            vcodeimg.src = '/img/code?' + new Date().getTime();
         }
     }
 

src/cxmooc-tools/common.js

@@ -157,4 +157,15 @@ Date.prototype.format = function (fmt) {
 export function log(msg) {
     console.log("cxmooc-tools [" + (new Date()).format("yyyy-MM-dd hh:mm:ss") + "] " + msg)
     console.trace()
-}
+}
+
+export function getImageBase64(img, ext) {
+    var canvas = document.createElement("canvas");
+    canvas.width = img.width;
+    canvas.height = img.height;
+    var ctx = canvas.getContext("2d");
+    ctx.drawImage(img, 0, 0, img.width, img.height);
+    var dataURL = canvas.toDataURL("image/" + ext); 
+    canvas = null;
+    return dataURL;
+}

webpack.config.js

@@ -22,8 +22,5 @@ module.exports = {
             },
             chunks: ['popup']
         })
-    ],
-    node: {
-        fs: 'empty'
-    }
+    ]
 }