|
|
|
|
@ -1,8 +1,6 @@
|
|
|
|
|
(function(name, definition) {
|
|
|
|
|
if (typeof module !== 'undefined') { module.exports = definition(); }
|
|
|
|
|
else if (typeof define === 'function' && typeof define.amd === 'object') { define(definition); }
|
|
|
|
|
else { this[name] = definition(); }
|
|
|
|
|
}('MediaTag', function() {
|
|
|
|
|
(function (window) {
|
|
|
|
|
var factory = function () {
|
|
|
|
|
var Promise = window.Promise;
|
|
|
|
|
var cache;
|
|
|
|
|
var cypherChunkLength = 131088;
|
|
|
|
|
|
|
|
|
|
@ -63,7 +61,8 @@
|
|
|
|
|
],
|
|
|
|
|
pdf: {},
|
|
|
|
|
download: {
|
|
|
|
|
text: "Download"
|
|
|
|
|
text: "Save",
|
|
|
|
|
textDl: "Load attachment"
|
|
|
|
|
},
|
|
|
|
|
Plugins: {
|
|
|
|
|
/**
|
|
|
|
|
@ -114,8 +113,8 @@
|
|
|
|
|
},
|
|
|
|
|
download: function (metadata, url, content, cfg, cb) {
|
|
|
|
|
var btn = document.createElement('button');
|
|
|
|
|
btn.setAttribute('class', 'btn btn-success');
|
|
|
|
|
btn.innerHTML = cfg.download.text + '<br>' +
|
|
|
|
|
btn.setAttribute('class', 'btn btn-default');
|
|
|
|
|
btn.innerHTML = '<i class="fa fa-save"></i>' + cfg.download.text + '<br>' +
|
|
|
|
|
(metadata.name ? '<b>' + fixHTML(metadata.name) + '</b>' : '');
|
|
|
|
|
btn.addEventListener('click', function () {
|
|
|
|
|
saveFile(content, url, metadata.name);
|
|
|
|
|
@ -125,28 +124,185 @@
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var makeProgressBar = function (cfg, mediaObject) {
|
|
|
|
|
if (mediaObject.bar) { return; }
|
|
|
|
|
mediaObject.bar = true;
|
|
|
|
|
var style = (function(){/*
|
|
|
|
|
.mediatag-progress-container {
|
|
|
|
|
position: relative;
|
|
|
|
|
border: 1px solid #0087FF;
|
|
|
|
|
background: white;
|
|
|
|
|
height: 25px;
|
|
|
|
|
display: inline-flex;
|
|
|
|
|
width: 200px;
|
|
|
|
|
align-items: center;
|
|
|
|
|
justify-content: center;
|
|
|
|
|
box-sizing: border-box;
|
|
|
|
|
vertical-align: top;
|
|
|
|
|
}
|
|
|
|
|
.mediatag-progress-bar {
|
|
|
|
|
position: absolute;
|
|
|
|
|
left: 0;
|
|
|
|
|
top: 0;
|
|
|
|
|
bottom: 0;
|
|
|
|
|
background: #0087FF;
|
|
|
|
|
width: 0%;
|
|
|
|
|
}
|
|
|
|
|
.mediatag-progress-text {
|
|
|
|
|
height: 25px;
|
|
|
|
|
width: 50px;
|
|
|
|
|
margin-left: 5px;
|
|
|
|
|
line-height: 25px;
|
|
|
|
|
vertical-align: top;
|
|
|
|
|
display: inline-block;
|
|
|
|
|
color: #3F4141;
|
|
|
|
|
font-weight: bold;
|
|
|
|
|
}
|
|
|
|
|
*/}).toString().slice(14, -3);
|
|
|
|
|
var container = document.createElement('div');
|
|
|
|
|
container.classList.add('mediatag-progress-container');
|
|
|
|
|
var bar = document.createElement('div');
|
|
|
|
|
bar.classList.add('mediatag-progress-bar');
|
|
|
|
|
container.appendChild(bar);
|
|
|
|
|
|
|
|
|
|
var text = document.createElement('span');
|
|
|
|
|
text.classList.add('mediatag-progress-text');
|
|
|
|
|
text.innerText = '0%';
|
|
|
|
|
|
|
|
|
|
mediaObject.on('progress', function (obj) {
|
|
|
|
|
var percent = obj.progress;
|
|
|
|
|
text.innerText = (Math.round(percent*10))/10+'%';
|
|
|
|
|
bar.setAttribute('style', 'width:'+percent+'%;');
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
mediaObject.tag.innerHTML = '<style>'+style+'</style>';
|
|
|
|
|
mediaObject.tag.appendChild(container);
|
|
|
|
|
mediaObject.tag.appendChild(text);
|
|
|
|
|
};
|
|
|
|
|
var makeDownloadButton = function (cfg, mediaObject, size, cb) {
|
|
|
|
|
var metadata = cfg.metadata || {};
|
|
|
|
|
var i = '<i class="fa fa-paperclip"></i>';
|
|
|
|
|
var name = metadata.name ? '<span class="mediatag-download-name">'+ i +'<b>'+
|
|
|
|
|
fixHTML(metadata.name)+'</b></span>' : '';
|
|
|
|
|
var btn = document.createElement('button');
|
|
|
|
|
btn.setAttribute('class', 'btn btn-default mediatag-download-btn');
|
|
|
|
|
btn.innerHTML = name + '<span>' + (name ? '' : i) +
|
|
|
|
|
cfg.download.textDl + ' <b>(' + size + 'MB)</b></span>';
|
|
|
|
|
btn.addEventListener('click', function () {
|
|
|
|
|
makeProgressBar(cfg, mediaObject);
|
|
|
|
|
var a = (cfg.body || document).querySelectorAll('media-tag[src="'+mediaObject.tag.getAttribute('src')+'"] button.mediatag-download-btn');
|
|
|
|
|
for(var i = 0; i < a.length; i++) {
|
|
|
|
|
if (a[i] !== btn) { a[i].click(); }
|
|
|
|
|
}
|
|
|
|
|
cb();
|
|
|
|
|
});
|
|
|
|
|
mediaObject.tag.innerHTML = '';
|
|
|
|
|
mediaObject.tag.appendChild(btn);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var getCacheKey = function (src) {
|
|
|
|
|
var _src = src.replace(/(\/)*$/, ''); // Remove trailing slashes
|
|
|
|
|
var idx = _src.lastIndexOf('/');
|
|
|
|
|
var cacheKey = _src.slice(idx+1);
|
|
|
|
|
if (!/^[a-f0-9]{48}$/.test(cacheKey)) { cacheKey = undefined; }
|
|
|
|
|
return cacheKey;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var getBlobCache = function (id, cb) {
|
|
|
|
|
if (!config.Cache || typeof(config.Cache.getBlobCache) !== "function") {
|
|
|
|
|
return void cb('EINVAL');
|
|
|
|
|
}
|
|
|
|
|
config.Cache.getBlobCache(id, cb);
|
|
|
|
|
};
|
|
|
|
|
var setBlobCache = function (id, u8, cb) {
|
|
|
|
|
if (!config.Cache || typeof(config.Cache.setBlobCache) !== "function") {
|
|
|
|
|
return void cb('EINVAL');
|
|
|
|
|
}
|
|
|
|
|
config.Cache.setBlobCache(id, u8, cb);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var getFileSize = function (src, _cb) {
|
|
|
|
|
var cb = function (e, res) {
|
|
|
|
|
_cb(e, res);
|
|
|
|
|
cb = function () {};
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var cacheKey = getCacheKey(src);
|
|
|
|
|
|
|
|
|
|
var check = function () {
|
|
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
|
xhr.open("HEAD", src);
|
|
|
|
|
xhr.onerror = function () { return void cb("XHR_ERROR"); };
|
|
|
|
|
xhr.onreadystatechange = function() {
|
|
|
|
|
if (this.readyState === this.DONE) {
|
|
|
|
|
cb(null, Number(xhr.getResponseHeader("Content-Length")));
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
xhr.onload = function () {
|
|
|
|
|
if (/^4/.test('' + this.status)) { return void cb("XHR_ERROR " + this.status); }
|
|
|
|
|
};
|
|
|
|
|
xhr.send();
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if (!cacheKey) { return void check(); }
|
|
|
|
|
|
|
|
|
|
getBlobCache(cacheKey, function (err, u8) {
|
|
|
|
|
if (err || !u8) { return void check(); }
|
|
|
|
|
cb(null, 0);
|
|
|
|
|
});
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// Download a blob from href
|
|
|
|
|
var download = function (src, _cb) {
|
|
|
|
|
var download = function (src, _cb, progressCb) {
|
|
|
|
|
var cb = function (e, res) {
|
|
|
|
|
_cb(e, res);
|
|
|
|
|
cb = function () {};
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
|
xhr.open('GET', src, true);
|
|
|
|
|
xhr.responseType = 'arraybuffer';
|
|
|
|
|
var cacheKey = getCacheKey(src);
|
|
|
|
|
|
|
|
|
|
xhr.onerror = function () { return void cb("XHR_ERROR"); };
|
|
|
|
|
xhr.onload = function () {
|
|
|
|
|
// Error?
|
|
|
|
|
if (/^4/.test('' + this.status)) { return void cb("XHR_ERROR " + this.status); }
|
|
|
|
|
var fetch = function () {
|
|
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
|
xhr.open('GET', src, true);
|
|
|
|
|
xhr.responseType = 'arraybuffer';
|
|
|
|
|
|
|
|
|
|
var progress = function (offset) {
|
|
|
|
|
progressCb(offset * 100);
|
|
|
|
|
};
|
|
|
|
|
xhr.addEventListener("progress", function (evt) {
|
|
|
|
|
if (evt.lengthComputable) {
|
|
|
|
|
var percentComplete = evt.loaded / evt.total;
|
|
|
|
|
progress(percentComplete);
|
|
|
|
|
}
|
|
|
|
|
}, false);
|
|
|
|
|
|
|
|
|
|
xhr.onerror = function () { return void cb("XHR_ERROR"); };
|
|
|
|
|
xhr.onload = function () {
|
|
|
|
|
// Error?
|
|
|
|
|
if (/^4/.test('' + this.status)) { return void cb("XHR_ERROR " + this.status); }
|
|
|
|
|
|
|
|
|
|
var arrayBuffer = xhr.response;
|
|
|
|
|
if (arrayBuffer) {
|
|
|
|
|
var u8 = new Uint8Array(arrayBuffer);
|
|
|
|
|
if (cacheKey) {
|
|
|
|
|
return void setBlobCache(cacheKey, u8, function () {
|
|
|
|
|
cb(null, u8);
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
cb(null, u8);
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var arrayBuffer = xhr.response;
|
|
|
|
|
if (arrayBuffer) { cb(null, new Uint8Array(arrayBuffer)); }
|
|
|
|
|
xhr.send(null);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
xhr.send(null);
|
|
|
|
|
if (!cacheKey) { return void fetch(); }
|
|
|
|
|
|
|
|
|
|
getBlobCache(cacheKey, function (err, u8) {
|
|
|
|
|
if (err || !u8) { return void fetch(); }
|
|
|
|
|
cb(null, u8);
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// Decryption tools
|
|
|
|
|
@ -192,6 +348,95 @@
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// The metadata size can go up to 65535 (16 bits - 2 bytes)
|
|
|
|
|
// The first 8 bits are stored in A[0]
|
|
|
|
|
// The last 8 bits are stored in A[0]
|
|
|
|
|
var uint8ArrayJoin = function (AA) {
|
|
|
|
|
var l = 0;
|
|
|
|
|
var i = 0;
|
|
|
|
|
for (; i < AA.length; i++) { l += AA[i].length; }
|
|
|
|
|
var C = new Uint8Array(l);
|
|
|
|
|
|
|
|
|
|
i = 0;
|
|
|
|
|
for (var offset = 0; i < AA.length; i++) {
|
|
|
|
|
C.set(AA[i], offset);
|
|
|
|
|
offset += AA[i].length;
|
|
|
|
|
}
|
|
|
|
|
return C;
|
|
|
|
|
};
|
|
|
|
|
var fetchMetadata = function (src, _cb) {
|
|
|
|
|
var cb = function (e, res) {
|
|
|
|
|
_cb(e, res);
|
|
|
|
|
cb = function () {};
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var cacheKey = getCacheKey(src);
|
|
|
|
|
|
|
|
|
|
var fetch = function () {
|
|
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
|
xhr.open('GET', src, true);
|
|
|
|
|
xhr.setRequestHeader('Range', 'bytes=0-1');
|
|
|
|
|
xhr.responseType = 'arraybuffer';
|
|
|
|
|
|
|
|
|
|
xhr.onerror = function () { return void cb("XHR_ERROR"); };
|
|
|
|
|
xhr.onload = function () {
|
|
|
|
|
// Error?
|
|
|
|
|
if (/^4/.test('' + this.status)) { return void cb("XHR_ERROR " + this.status); }
|
|
|
|
|
var res = new Uint8Array(xhr.response);
|
|
|
|
|
var size = Decrypt.decodePrefix(res);
|
|
|
|
|
var xhr2 = new XMLHttpRequest();
|
|
|
|
|
|
|
|
|
|
xhr2.open("GET", src, true);
|
|
|
|
|
xhr2.setRequestHeader('Range', 'bytes=2-' + (size + 2));
|
|
|
|
|
xhr2.responseType = 'arraybuffer';
|
|
|
|
|
xhr2.onload = function () {
|
|
|
|
|
if (/^4/.test('' + this.status)) { return void cb("XHR_ERROR " + this.status); }
|
|
|
|
|
var res2 = new Uint8Array(xhr2.response);
|
|
|
|
|
var all = uint8ArrayJoin([res, res2]);
|
|
|
|
|
cb(void 0, all);
|
|
|
|
|
};
|
|
|
|
|
xhr2.send(null);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
xhr.send(null);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if (!cacheKey) { return void fetch(); }
|
|
|
|
|
|
|
|
|
|
getBlobCache(cacheKey, function (err, u8) {
|
|
|
|
|
if (err || !u8) { return void fetch(); }
|
|
|
|
|
|
|
|
|
|
var size = Decrypt.decodePrefix(u8.subarray(0,2));
|
|
|
|
|
console.error(size);
|
|
|
|
|
|
|
|
|
|
cb(null, u8.subarray(0, size+2));
|
|
|
|
|
});
|
|
|
|
|
};
|
|
|
|
|
var decryptMetadata = function (u8, key) {
|
|
|
|
|
var prefix = u8.subarray(0, 2);
|
|
|
|
|
var metadataLength = Decrypt.decodePrefix(prefix);
|
|
|
|
|
|
|
|
|
|
var metaBox = new Uint8Array(u8.subarray(2, 2 + metadataLength));
|
|
|
|
|
var metaChunk = window.nacl.secretbox.open(metaBox, Decrypt.createNonce(), key);
|
|
|
|
|
|
|
|
|
|
try {
|
|
|
|
|
return JSON.parse(window.nacl.util.encodeUTF8(metaChunk));
|
|
|
|
|
}
|
|
|
|
|
catch (e) { return null; }
|
|
|
|
|
};
|
|
|
|
|
var fetchDecryptedMetadata = function (src, strKey, cb) {
|
|
|
|
|
if (typeof(src) !== 'string') {
|
|
|
|
|
return window.setTimeout(function () {
|
|
|
|
|
cb('NO_SOURCE');
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
fetchMetadata(src, function (e, buffer) {
|
|
|
|
|
if (e) { return cb(e); }
|
|
|
|
|
var key = Decrypt.getKeyFromStr(strKey);
|
|
|
|
|
cb(void 0, decryptMetadata(buffer, key));
|
|
|
|
|
});
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// Decrypts a Uint8Array with the given key.
|
|
|
|
|
var decrypt = function (u8, strKey, done, progressCb) {
|
|
|
|
|
var Nacl = window.nacl;
|
|
|
|
|
@ -372,6 +617,7 @@
|
|
|
|
|
var handlers = cfg.handlers || {
|
|
|
|
|
'progress': [],
|
|
|
|
|
'complete': [],
|
|
|
|
|
'metadata': [],
|
|
|
|
|
'error': []
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
@ -422,6 +668,7 @@
|
|
|
|
|
|
|
|
|
|
// End media-tag rendering: display the tag and emit the event
|
|
|
|
|
var end = function (decrypted) {
|
|
|
|
|
mediaObject.complete = true;
|
|
|
|
|
process(mediaObject, decrypted, cfg, function (err) {
|
|
|
|
|
if (err) { return void emit('error', err); }
|
|
|
|
|
mediaObject._blob = decrypted;
|
|
|
|
|
@ -429,32 +676,78 @@
|
|
|
|
|
});
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// If we have the blob in our cache, don't download & decrypt it again, just display
|
|
|
|
|
if (cache[uid]) {
|
|
|
|
|
end(cache[uid]);
|
|
|
|
|
return mediaObject;
|
|
|
|
|
}
|
|
|
|
|
var error = function (err) {
|
|
|
|
|
mediaObject.tag.innerHTML = '<img style="width: 100px; height: 100px;" src="/images/broken.png">';
|
|
|
|
|
emit('error', err);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
// Download the encrypted blob
|
|
|
|
|
download(src, function (err, u8Encrypted) {
|
|
|
|
|
if (err) {
|
|
|
|
|
if (err === "XHR_ERROR 404") {
|
|
|
|
|
mediaObject.tag.innerHTML = '<img style="width: 100px; height: 100px;" src="/images/broken.png">';
|
|
|
|
|
}
|
|
|
|
|
return void emit('error', err);
|
|
|
|
|
var getCache = function () {
|
|
|
|
|
var c = cache[uid];
|
|
|
|
|
if (!c || !c.promise || !c.mt) { return; }
|
|
|
|
|
return c;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
var dl = function () {
|
|
|
|
|
// Download the encrypted blob
|
|
|
|
|
cache[uid] = getCache() || {
|
|
|
|
|
promise: new Promise(function (resolve, reject) {
|
|
|
|
|
download(src, function (err, u8Encrypted) {
|
|
|
|
|
if (err) {
|
|
|
|
|
return void reject(err);
|
|
|
|
|
}
|
|
|
|
|
// Decrypt the blob
|
|
|
|
|
decrypt(u8Encrypted, strKey, function (errDecryption, u8Decrypted) {
|
|
|
|
|
if (errDecryption) {
|
|
|
|
|
return void reject(errDecryption);
|
|
|
|
|
}
|
|
|
|
|
emit('metadata', u8Decrypted.metadata);
|
|
|
|
|
resolve(u8Decrypted);
|
|
|
|
|
}, function (progress) {
|
|
|
|
|
emit('progress', {
|
|
|
|
|
progress: 50+0.5*progress
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
}, function (progress) {
|
|
|
|
|
emit('progress', {
|
|
|
|
|
progress: 0.5*progress
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
}),
|
|
|
|
|
mt: mediaObject
|
|
|
|
|
};
|
|
|
|
|
if (cache[uid].mt !== mediaObject) {
|
|
|
|
|
// Add progress for other instances of this tag
|
|
|
|
|
cache[uid].mt.on('progress', function (obj) {
|
|
|
|
|
if (!mediaObject.bar && !cfg.force) { makeProgressBar(cfg, mediaObject); }
|
|
|
|
|
emit('progress', {
|
|
|
|
|
progress: obj.progress
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
// Decrypt the blob
|
|
|
|
|
decrypt(u8Encrypted, strKey, function (errDecryption, u8Decrypted) {
|
|
|
|
|
if (errDecryption) {
|
|
|
|
|
return void emit('error', errDecryption);
|
|
|
|
|
cache[uid].promise.then(function (u8) {
|
|
|
|
|
end(u8);
|
|
|
|
|
}, function (err) {
|
|
|
|
|
error(err);
|
|
|
|
|
});
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if (cfg.force) { dl(); return mediaObject; }
|
|
|
|
|
|
|
|
|
|
var maxSize = typeof(config.maxDownloadSize) === "number" ? config.maxDownloadSize
|
|
|
|
|
: (5 * 1024 * 1024);
|
|
|
|
|
fetchDecryptedMetadata(src, strKey, function (err, md) {
|
|
|
|
|
if (err) { return void error(err); }
|
|
|
|
|
cfg.metadata = md;
|
|
|
|
|
emit('metadata', md);
|
|
|
|
|
getFileSize(src, function (err, size) {
|
|
|
|
|
// If the size is smaller than the autodownload limit, load the blob.
|
|
|
|
|
// If the blob is already loaded or being loaded, don't show the button.
|
|
|
|
|
if (!size || size < maxSize || getCache()) {
|
|
|
|
|
makeProgressBar(cfg, mediaObject);
|
|
|
|
|
return void dl();
|
|
|
|
|
}
|
|
|
|
|
// Cache and display the decrypted blob
|
|
|
|
|
cache[uid] = u8Decrypted;
|
|
|
|
|
end(u8Decrypted);
|
|
|
|
|
}, function (progress) {
|
|
|
|
|
emit('progress', {
|
|
|
|
|
progress: progress
|
|
|
|
|
});
|
|
|
|
|
var sizeMb = Math.round(10 * size / 1024 / 1024) / 10;
|
|
|
|
|
makeDownloadButton(cfg, mediaObject, sizeMb, dl);
|
|
|
|
|
});
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
@ -468,5 +761,20 @@
|
|
|
|
|
config[key] = value;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
init.fetchDecryptedMetadata = fetchDecryptedMetadata;
|
|
|
|
|
|
|
|
|
|
return init;
|
|
|
|
|
}));
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
if (typeof(module) !== 'undefined' && module.exports) {
|
|
|
|
|
module.exports = factory();
|
|
|
|
|
} else if ((typeof(define) !== 'undefined' && define !== null) && (define.amd !== null)) {
|
|
|
|
|
define([
|
|
|
|
|
'/bower_components/es6-promise/es6-promise.min.js'
|
|
|
|
|
], function () {
|
|
|
|
|
return factory();
|
|
|
|
|
});
|
|
|
|
|
} else {
|
|
|
|
|
// unsupported initialization
|
|
|
|
|
}
|
|
|
|
|
}(typeof(window) !== 'undefined'? window : {}));
|
|
|
|
|
|
yflory
4 years ago