diff options
Diffstat (limited to 'binaryajax.js')
| -rw-r--r-- | binaryajax.js | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/binaryajax.js b/binaryajax.js deleted file mode 100644 index f674d9c..0000000 --- a/binaryajax.js +++ /dev/null @@ -1,235 +0,0 @@ - -/* - * Binary Ajax 0.1.5 - * Copyright (c) 2008 Jacob Seidelin, cupboy@gmail.com, http://blog.nihilogic.dk/ - * MIT License [http://www.opensource.org/licenses/mit-license.php] - */ - - -var BinaryFile = function(strData, iDataOffset, iDataLength) { - var data = strData; - var dataOffset = iDataOffset || 0; - var dataLength = 0; - - this.getRawData = function() { - return data; - } - - if (typeof strData == "string") { - dataLength = iDataLength || data.length; - - this.getByteAt = function(iOffset) { - return data.charCodeAt(iOffset + dataOffset) & 0xFF; - } - } else if (typeof strData == "unknown") { - dataLength = iDataLength || IEBinary_getLength(data); - - this.getByteAt = function(iOffset) { - return IEBinary_getByteAt(data, iOffset + dataOffset); - } - } - - this.getLength = function() { - return dataLength; - } - - this.getSByteAt = function(iOffset) { - var iByte = this.getByteAt(iOffset); - if (iByte > 127) - return iByte - 256; - else - return iByte; - } - - this.getShortAt = function(iOffset, bBigEndian) { - var iShort = bBigEndian ? - (this.getByteAt(iOffset) << 8) + this.getByteAt(iOffset + 1) - : (this.getByteAt(iOffset + 1) << 8) + this.getByteAt(iOffset) - if (iShort < 0) iShort += 65536; - return iShort; - } - this.getSShortAt = function(iOffset, bBigEndian) { - var iUShort = this.getShortAt(iOffset, bBigEndian); - if (iUShort > 32767) - return iUShort - 65536; - else - return iUShort; - } - this.getLongAt = function(iOffset, bBigEndian) { - var iByte1 = this.getByteAt(iOffset), - iByte2 = this.getByteAt(iOffset + 1), - iByte3 = this.getByteAt(iOffset + 2), - iByte4 = this.getByteAt(iOffset + 3); - - var iLong = bBigEndian ? - (((((iByte1 << 8) + iByte2) << 8) + iByte3) << 8) + iByte4 - : (((((iByte4 << 8) + iByte3) << 8) + iByte2) << 8) + iByte1; - if (iLong < 0) iLong += 4294967296; - return iLong; - } - this.getSLongAt = function(iOffset, bBigEndian) { - var iULong = this.getLongAt(iOffset, bBigEndian); - if (iULong > 2147483647) - return iULong - 4294967296; - else - return iULong; - } - this.getStringAt = function(iOffset, iLength) { - var aStr = []; - for (var i=iOffset,j=0;i<iOffset+iLength;i++,j++) { - aStr[j] = String.fromCharCode(this.getByteAt(i)); - } - return aStr.join(""); - } - - this.getCharAt = function(iOffset) { - return String.fromCharCode(this.getByteAt(iOffset)); - } - this.toBase64 = function() { - return window.btoa(data); - } - this.fromBase64 = function(strBase64) { - data = window.atob(strBase64); - } -} - - -var BinaryAjax = (function() { - - function createRequest() { - var oHTTP = null; - if (window.XMLHttpRequest) { - oHTTP = new XMLHttpRequest(); - } else if (window.ActiveXObject) { - oHTTP = new ActiveXObject("Microsoft.XMLHTTP"); - } - return oHTTP; - } - - function getHead(strURL, fncCallback, fncError) { - var oHTTP = createRequest(); - if (oHTTP) { - if (fncCallback) { - if (typeof(oHTTP.onload) != "undefined") { - oHTTP.onload = function() { - if (oHTTP.status == "200") { - fncCallback(this); - } else { - if (fncError) fncError(); - } - oHTTP = null; - }; - } else { - oHTTP.onreadystatechange = function() { - if (oHTTP.readyState == 4) { - if (oHTTP.status == "200") { - fncCallback(this); - } else { - if (fncError) fncError(); - } - oHTTP = null; - } - }; - } - } - oHTTP.open("HEAD", strURL, true); - oHTTP.send(null); - } else { - if (fncError) fncError(); - } - } - - function sendRequest(strURL, fncCallback, fncError, aRange, bAcceptRanges, iFileSize) { - var oHTTP = createRequest(); - if (oHTTP) { - - var iDataOffset = 0; - if (aRange && !bAcceptRanges) { - iDataOffset = aRange[0]; - } - var iDataLen = 0; - if (aRange) { - iDataLen = aRange[1]-aRange[0]+1; - } - - if (fncCallback) { - if (typeof(oHTTP.onload) != "undefined") { - oHTTP.onload = function() { - - if (oHTTP.status == "200" || oHTTP.status == "206") { - this.binaryResponse = new BinaryFile(this.responseText, iDataOffset, iDataLen); - this.fileSize = iFileSize || this.getResponseHeader("Content-Length"); - fncCallback(this); - } else { - if (fncError) fncError(); - } - oHTTP = null; - }; - } else { - oHTTP.onreadystatechange = function() { - if (oHTTP.readyState == 4) { - if (oHTTP.status == "200" || oHTTP.status == "206") { - this.binaryResponse = new BinaryFile(oHTTP.responseBody, iDataOffset, iDataLen); - this.fileSize = iFileSize || this.getResponseHeader("Content-Length"); - fncCallback(this); - } else { - if (fncError) fncError(); - } - oHTTP = null; - } - }; - } - } - oHTTP.open("GET", strURL, true); - - if (oHTTP.overrideMimeType) oHTTP.overrideMimeType('text/plain; charset=x-user-defined'); - - if (aRange && bAcceptRanges) { - oHTTP.setRequestHeader("Range", "bytes=" + aRange[0] + "-" + aRange[1]); - } - - oHTTP.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 1970 00:00:00 GMT"); - - oHTTP.send(null); - } else { - if (fncError) fncError(); - } - } - - return function(strURL, fncCallback, fncError, aRange) { - - if (aRange) { - getHead( - strURL, - function(oHTTP) { - var iLength = parseInt(oHTTP.getResponseHeader("Content-Length"),10); - var strAcceptRanges = oHTTP.getResponseHeader("Accept-Ranges"); - - var iStart, iEnd; - iStart = aRange[0]; - if (aRange[0] < 0) - iStart += iLength; - iEnd = iStart + aRange[1] - 1; - - sendRequest(strURL, fncCallback, fncError, [iStart, iEnd], (strAcceptRanges == "bytes"), iLength); - } - ); - - } else { - sendRequest(strURL, fncCallback, fncError); - } - } - -}()); - - -document.write( - "<script type='text/vbscript'>\r\n" - + "Function IEBinary_getByteAt(strBinary, iOffset)\r\n" - + " IEBinary_getByteAt = AscB(MidB(strBinary,iOffset+1,1))\r\n" - + "End Function\r\n" - + "Function IEBinary_getLength(strBinary)\r\n" - + " IEBinary_getLength = LenB(strBinary)\r\n" - + "End Function\r\n" - + "</script>\r\n" -); |