fix: 微信登录补充保存username和role

node_modules/qrcode-reader/README.md

@@ -0,0 +1,162 @@
+JavaScript QRCode reader for HTML5 enabled browser.
+===================================================
+
+This was started as a port of Lazarsoft’s qrcode reader.
+
+It is a maintained fork, so feel free to open issues or PR !
+
+[![Build Status](https://travis-ci.org/edi9999/jsqrcode.svg?branch=master&style=flat)](https://travis-ci.org/edi9999/jsqrcode)
+
+Installation
+============
+
+```
+npm install qrcode-reader
+```
+
+Usage
+=====
+
+```
+var QrCode = require('qrcode-reader');
+```
+
+Create a new instance of QrCode:
+
+```
+var qr = new QrCode();
+```
+
+Set its callback to a custom function:
+
+```
+qr.callback = function(error, result) {
+  if(error) {
+    console.log(error)
+    return;
+  }
+  console.log(result)
+}
+```
+
+Passing image data in node
+==========================
+
+You have to use an external imageparser
+
+1.	You can use `npm install --save jimp` which doesn't have any dependency (runs in pure node).
+
+	```javascript
+	var Jimp = require("jimp");
+	var buffer = fs.readFileSync(__dirname + '/image.png');
+	Jimp.read(buffer, function(err, image) {
+	    if (err) {
+	        console.error(err);
+	        // TODO handle error
+	    }
+	    var qr = new QrCode();
+	    qr.callback = function(err, value) {
+	        if (err) {
+	            console.error(err);
+	            // TODO handle error
+	        }
+	        console.log(value.result);
+	        console.log(value);
+	    };
+	    qr.decode(image.bitmap);
+	});
+	```
+
+2.	You can use `npm install --save image-parser`, which depends on lwip or graphicsmagick
+
+	```javascript
+	var ImageParser = require("image-parser");
+	var buffer = fs.readFileSync(__dirname + '/image.png');
+	var img = new ImageParser(img);
+	img.parse(function(err) {
+	    if (err) {
+	        console.error(err);
+	        // TODO handle error
+	    }
+	    var qr = new QrCode();
+	    qr.callback = function(err, value) {
+	        if (err) {
+	            console.error(err);
+	            // TODO handle error
+	            return done(err);
+	        }
+	        console.log(value.result);
+	        console.log(value);
+	    };
+	    qr.decode({width: img.width(), height: img.height()}, img._imgBuffer);
+	});
+	```
+
+Passing image data in the browser
+=================================
+
+Since the browser contains the Image global, we can use it to open images with URL, Data URI, ...
+
+Decode an image by its URL or Data URI:
+
+```
+
+qr.decode(url or DataURL);
+
+```
+
+Decode an image by context.getImageData: Works with [web workers](https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers).
+
+```
+
+var context = canvas.getContext("2d"); var data = context.getImageData(0, 0, width, height);
+
+qr.decode(data);
+
+```
+
+====================
+
+If you want, you can build the script yourself.
+
+First clone the repository, then from the directory of this repository, do:
+
+```
+
+npm install
+
+```
+
+To run the build process and generate a JavaScript file called `dist/index.js` you can run from node:
+
+```
+
+npm run build
+
+```
+
+To run the tests:
+
+```
+
+npm test
+
+```
+
+Make it work in the browser
+===========================
+
+The generated file `dist/index.js` works in the browser.
+
+You will have access to the global variable `QrCode` if you do the following in your HTML:
+
+\`\`\`
+
+<script src="dist/index.js"></script> \`\`\`
+
+See [examples/browser-upload/index.html](examples/browser-upload/index.html) for a very basic example using a file upload.
+
+Changelog
+=========
+
+See [`CHANGELOG.md`](CHANGELOG.md)\.