init commit

2026-04-30 10:16:43 +08:00
commit 2c8eb4f587
44 changed files with 17574 additions and 0 deletions
--- a/src/utils/base64.js
+++ b/src/utils/base64.js
@@ -0,0 +1,86 @@
+let _keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
+
+function __utf8_encode(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;
+}
+
+function __utf8_decode(utftext) {
+    var string = "", i = 0, c = 0, c1 = 0, c2 = 0, c3 = 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;
+}
+
+export function encodeBase64(input) {
+    var output = "", chr1, chr2, chr3, enc1, enc2, enc3, enc4, 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;
+}
+
+export function decodeBase64(input) {
+    var output = "", chr1, chr2, chr3, enc1, enc2, enc3, enc4, 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;
+}