implemented deleting from server. multiple uploads by uploader handled and displayed on DOM

This commit is contained in:
Abhinav Adduri 2017-05-31 14:08:13 -07:00
parent c25c97fbaa
commit 895c4d364f
5 changed files with 118 additions and 27 deletions

View file

@ -31,12 +31,40 @@ function onChange(event) {
var xhr = new XMLHttpRequest();
var hex = ivToStr(random_iv);
xhr.open("post", "/upload/" + hex, true);
xhr.addEventListener("progress", updateProgress);
xhr.upload.addEventListener("progress", updateProgress);
var li = document.createElement("li");
var name = document.createElement("p");
name.innerHTML = file.name;
li.appendChild(name);
var link = document.createElement("a");
li.appendChild(link);
var progress = document.createElement("p");
li.appendChild(progress);
document.getElementById("uploaded_files").appendChild(li);
xhr.upload.addEventListener("progress", returnBindedLI(progress, name, link, li));
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE) {
window.crypto.subtle.exportKey("jwk", key).then(function(keydata) {
var curr_name = localStorage.getItem(file.name);
localStorage.setItem(hex, xhr.responseText);
link.innerHTML = "http://localhost:3000/download/" + hex + "/#" + keydata.k;
link.setAttribute("href", "http://localhost:3000/download/" + hex + "/#" + keydata.k);
// if (curr_name) {
// localStorage.setItem(file.name, curr_name + "," + hex);
// } else {
// localStorage.setItem(file.name, hex)
// }
console.log("Share this link with a friend: http://localhost:3000/download/" + hex + "/#" + keydata.k);
alert("Share this link with a friend: http://localhost:3000/download/" + hex + "/#" + keydata.k);
})
@ -80,9 +108,42 @@ function strToIv(str) {
return iv;
}
function updateProgress(e) {
if (e.lengthComputable) {
var percentComplete = Math.floor((e.loaded / e.total) * 100);
document.getElementById("downloadProgress").innerHTML = "Progress: " + percentComplete + "%";
}
}
function returnBindedLI(a_element, name, link, li) {
return function updateProgress(e) {
if (e.lengthComputable) {
var percentComplete = Math.floor((e.loaded / e.total) * 100);
a_element.innerHTML = "Progress: " + percentComplete + "%";
if (percentComplete === 100) {
var btn = document.createElement("button");
btn.innerHTML = "Delete from server";
btn.addEventListener("click", function() {
var segments = link.innerHTML.split("/");
var key = segments[segments.length - 2];
var xhr = new XMLHttpRequest();
xhr.open("post", "/delete/" + key, true);
xhr.setRequestHeader("Content-Type", "application/json");
if (!localStorage.getItem(key)) return;
xhr.send(JSON.stringify({delete_token: localStorage.getItem(key)}));
xhr.onreadystatechange = function() {
if (xhr.readyState === XMLHttpRequest.DONE) {
document.getElementById("uploaded_files").removeChild(li);
}
if (xhr.status === 200) {
console.log("The file was successfully deleted.");
} else {
console.log("The file has expired, or has already been deleted.");
}
}
});
li.appendChild(btn);
}
}
}
}