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Code Issues Releases Wiki Activity

updated util

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This commit is contained in:
Tankred Hase 2013-08-30 19:01:48 +02:00
parent 628cb0ddd9
commit 95d51b9bec
1 changed files with 4 additions and 33 deletions
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37
src/js/crypto/util.js
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@ -87,42 +87,13 @@
var b = new ArrayBuffer(str.length);
var buf = new Uint8Array(b);
for (var i = 0; i < b.byteLength; i++) {
for (var i = 0, len = b.byteLength; i < len; i++) {
buf[i] = str.charCodeAt(i);
}
return b;
};
/**
* Creates a Blob from an ArrayBuffer using the BlobBuilder Api
* @param str [String] a binary string with integer values (0..255) per character
* @return [ArrayBuffer] either a data url or a filesystem url
*/
Util.prototype.arrBuf2Blob = function(buf, mimeType) {
var b = new Uint8Array(buf);
var blob = new Blob([b], {
type: mimeType
});
return blob;
};
/**
* Creates a binary String from a Blob using the FileReader Api
* @param blob [Blob/File] a blob containing the the binary data
* @return [String] a binary string with integer values (0..255) per character
*/
Util.prototype.blob2BinStr = function(blob, callback) {
var reader = new FileReader();
reader.onload = function(event) {
callback(event.target.result);
};
reader.readAsBinaryString(blob);
};
/**
* Converts an ArrayBuffer to a binary String. This is a slower alternative to
* conversion with arrBuf2Blob -> blob2BinStr, since these use native apis,
@ -134,7 +105,7 @@
var b = new Uint8Array(buf);
var str = '';
for (var i = 0; i < b.length; i++) {
for (var i = 0, len = b.length; i < len; i++) {
str += String.fromCharCode(b[i]);
}
@ -149,7 +120,7 @@
Util.prototype.uint8Arr2BinStr = function(buf) {
var str = '';
for (var i = 0; i < buf.length; i++) {
for (var i = 0, len = buf.length; i < len; i++) {
str += String.fromCharCode(buf[i]);
}
@ -164,7 +135,7 @@
Util.prototype.binStr2Uint8Arr = function(str) {
var c, buf = new Uint8Array(str.length);
for (var i = 0; i < buf.length; i++) {
for (var i = 0, len = buf.length; i < len; i++) {
c = str.charCodeAt(i);
buf[i] = (c & 0xff);
}