From 0014df024882f34a976f4d5ebb85a9261956ee95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=A8=E6=A0=91=E6=9E=97?= <904079904@qq.com>
Date: Fri, 5 Jul 2019 18:26:08 +0800
Subject: [PATCH] =?UTF-8?q?=E8=B0=83=E6=95=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../courses/shixunHomework/Listofworks.js     |  10 +-
 .../modules/courses/shixunHomework/base64.js  | 103 ++++++++++++++++++
 2 files changed, 110 insertions(+), 3 deletions(-)
 create mode 100644 public/react/src/modules/courses/shixunHomework/base64.js

diff --git a/public/react/src/modules/courses/shixunHomework/Listofworks.js b/public/react/src/modules/courses/shixunHomework/Listofworks.js
index b5e5b5e35..2df71929c 100644
--- a/public/react/src/modules/courses/shixunHomework/Listofworks.js
+++ b/public/react/src/modules/courses/shixunHomework/Listofworks.js
@@ -32,7 +32,7 @@ import moment from 'moment';
 import 'moment/locale/zh-cn';
 import {getImageUrl, toPath} from 'educoder';
 import ShixunWorkModal from './Shixunworkdetails/ShixunWorkModal';
-
+import Base64 from './base64'
 const Search = Input.Search;
 const RadioGroup = Radio.Group;
 const CheckboxGroup = Checkbox.Group;
@@ -1336,8 +1336,11 @@ class Listofworks extends Component {
 		});
 
 	}
-	myBase64(){
-
+	myBase64(strinb){
+		var base = 	new Base64();
+		var result2 = base.decode(strinb);
+		console.log("解密后的值")//解密后的值
+		console.log(result2)//解密后的值
 	}
   // 导出实习报告批量
 	internshipreport = (url)=>{
@@ -1409,6 +1412,7 @@ class Listofworks extends Component {
 				console.log(decodeURIComponent(response.headers['content-disposition'].split('=')[1]));
 				downloadElement.href = href
 				// downloadElement.download = name
+				this.myBase64(response.headers['content-disposition'].split('=')[1]);
 				document.body.appendChild(downloadElement)
 				downloadElement.click()
 				document.body.removeChild(downloadElement) // 下载完成移除元素
diff --git a/public/react/src/modules/courses/shixunHomework/base64.js b/public/react/src/modules/courses/shixunHomework/base64.js
new file mode 100644
index 000000000..4494a50e3
--- /dev/null
+++ b/public/react/src/modules/courses/shixunHomework/base64.js
@@ -0,0 +1,103 @@
+function Base64() {
+
+	// private property
+	_keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+	// public method for encoding
+	this.encode = function (input) {
+		var output = "";
+		var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
+		var i = 0;
+		input = _utf8_encode(input);
+		while (i < input.length) {
+			chr1 = input.charCodeAt(i++);
+			chr2 = input.charCodeAt(i++);
+			chr3 = input.charCodeAt(i++);
+			enc1 = chr1 >> 2;
+			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
+			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
+			enc4 = chr3 & 63;
+			if (isNaN(chr2)) {
+				enc3 = enc4 = 64;
+			} else if (isNaN(chr3)) {
+				enc4 = 64;
+			}
+			output = output +
+				_keyStr.charAt(enc1) + _keyStr.charAt(enc2) +
+				_keyStr.charAt(enc3) + _keyStr.charAt(enc4);
+		}
+		return output;
+	}
+
+	// public method for decoding
+	this.decode = function (input) {
+		var output = "";
+		var chr1, chr2, chr3;
+		var enc1, enc2, enc3, enc4;
+		var i = 0;
+		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
+		while (i < input.length) {
+			enc1 = _keyStr.indexOf(input.charAt(i++));
+			enc2 = _keyStr.indexOf(input.charAt(i++));
+			enc3 = _keyStr.indexOf(input.charAt(i++));
+			enc4 = _keyStr.indexOf(input.charAt(i++));
+			chr1 = (enc1 << 2) | (enc2 >> 4);
+			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
+			chr3 = ((enc3 & 3) << 6) | enc4;
+			output = output + String.fromCharCode(chr1);
+			if (enc3 != 64) {
+				output = output + String.fromCharCode(chr2);
+			}
+			if (enc4 != 64) {
+				output = output + String.fromCharCode(chr3);
+			}
+		}
+		output = _utf8_decode(output);
+		return output;
+	}
+
+	// private method for UTF-8 encoding
+	_utf8_encode = function (string) {
+		string = string.replace(/\r\n/g,"\n");
+		var utftext = "";
+		for (var n = 0; n < string.length; n++) {
+			var c = string.charCodeAt(n);
+			if (c < 128) {
+				utftext += String.fromCharCode(c);
+			} else if((c > 127) && (c < 2048)) {
+				utftext += String.fromCharCode((c >> 6) | 192);
+				utftext += String.fromCharCode((c & 63) | 128);
+			} else {
+				utftext += String.fromCharCode((c >> 12) | 224);
+				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
+				utftext += String.fromCharCode((c & 63) | 128);
+			}
+
+		}
+		return utftext;
+	}
+
+	// private method for UTF-8 decoding
+	_utf8_decode = function (utftext) {
+		var string = "";
+		var i = 0;
+		var c = c1 = c2 = 0;
+		while ( i < utftext.length ) {
+			c = utftext.charCodeAt(i);
+			if (c < 128) {
+				string += String.fromCharCode(c);
+				i++;
+			} else if((c > 191) && (c < 224)) {
+				c2 = utftext.charCodeAt(i+1);
+				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
+				i += 2;
+			} else {
+				c2 = utftext.charCodeAt(i+1);
+				c3 = utftext.charCodeAt(i+2);
+				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
+				i += 3;
+			}
+		}
+		return string;
+	}
+}
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