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/* jsaccess - download and decrypt files in the browser
* 2013, Laurent Ghigonis <laurent@gouloum.fr> */
/* Reference code */
//console.log(JSON.stringify(xhr));
/* Called on "body" load */
function jsainit() {
/* XXX get content of jsa/files/ directory to present
a list to the user */
}
/* Called on "Download" click */
function jsadl() {
document.getElementById('status').innerHTML = "";
var pass = document.getElementById('password').value;
var file = $('input[name=files]:checked').val();
obj = _dl(file, pass);
}
function _dl(file, pass) {
window.URL = window.URL || window.webkitURL;
_status("Downloading \""+file+"\" ...");
dlreq = $.ajax({
url: 'files/' + file,
beforeSend: function ( xhr ) {
xhr.overrideMimeType("application/base64");
}
}).done(function ( data ) {
_status("Download complete, decrypting ...");
_decrypt(data, pass, file);
});
}
function _decrypt(obj, pass, name) {
try {
var decrypted = GibberishAES.dec(obj, pass);
} catch(err) {
_status(err.toString());
}
out = $.base64.decode(decrypted.toString());
_status("Decrypted successfuly, saving ...");
_save(out, name);
}
function _save(obj, name) {
var ab = new ArrayBuffer(obj.length);
var ia = new Uint8Array(ab);
for (var i = 0; i < obj.length; i++) {
ia[i] = obj.charCodeAt(i);
}
var blob = new Blob([ia], {type:"application/octet-binary"});
saveAs(blob, name);
_status("File \""+name+"\" saved.");
_status("Have a good day.");
}
function _status(txt) {
var div = document.getElementById('status');
div.innerHTML = div.innerHTML + '<br/>' + txt;
}
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