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cryptpad
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Add converter app

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pull/1/head
yflory 3 years ago
parent a4bd4e2784
commit 544e5bcbfe
7 changed files with 543 additions and 1 deletions
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2
www/common/application_config_internal.js
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@ -12,7 +12,7 @@ define(function() {
* You should never remove the drive from this list. * You should never remove the drive from this list.
*/ */
AppConfig.availablePadTypes = ['drive', 'teams', 'pad', 'sheet', 'code', 'slide', 'poll', 'kanban', 'whiteboard', AppConfig.availablePadTypes = ['drive', 'teams', 'pad', 'sheet', 'code', 'slide', 'poll', 'kanban', 'whiteboard',
/*'doc', 'presentation',*/ 'file', /*'todo',*/ 'contacts', 'form']; /*'doc', 'presentation',*/ 'file', /*'todo',*/ 'contacts', 'form', 'convert'];
/* The registered only types are apps restricted to registered users. /* The registered only types are apps restricted to registered users.
* You should never remove apps from this list unless you know what you're doing. The apps * You should never remove apps from this list unless you know what you're doing. The apps
* listed here by default can't work without a user account. * listed here by default can't work without a user account.

16
www/convert/app-convert.less
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@import (reference) '../../customize/src/less2/include/framework.less';
@import (reference) '../../customize/src/less2/include/sidebar-layout.less';
&.cp-app-convert {
.framework_min_main(
@bg-color: @colortheme_apps[default],
);
.sidebar-layout_main();
// body
display: flex;
flex-flow: column;
background-color: @cp_app-bg;
}

209
www/convert/file-crypto.js
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define([
'/bower_components/tweetnacl/nacl-fast.min.js',
], function () {
var Nacl = window.nacl;
//var PARANOIA = true;
var plainChunkLength = 128 * 1024;
var cypherChunkLength = 131088;
var computeEncryptedSize = function (bytes, meta) {
var metasize = Nacl.util.decodeUTF8(JSON.stringify(meta)).length;
var chunks = Math.ceil(bytes / plainChunkLength);
return metasize + 18 + (chunks * 16) + bytes;
};
var encodePrefix = function (p) {
return [
65280, // 255 << 8
255,
].map(function (n, i) {
return (p & n) >> ((1 - i) * 8);
});
};
var decodePrefix = function (A) {
return (A[0] << 8) | A[1];
};
var slice = function (A) {
return Array.prototype.slice.call(A);
};
var createNonce = function () {
return new Uint8Array(new Array(24).fill(0));
};
var increment = function (N) {
var l = N.length;
while (l-- > 1) {
/* our linter suspects this is unsafe because we lack types
but as long as this is only used on nonces, it should be safe */
if (N[l] !== 255) { return void N[l]++; } // jshint ignore:line
if (l === 0) { throw new Error('E_NONCE_TOO_LARGE'); }
N[l] = 0;
}
};
var joinChunks = function (chunks) {
return new Blob(chunks);
};
var decrypt = function (u8, key, done, progress) {
var MAX = u8.length;
var _progress = function (offset) {
if (typeof(progress) !== 'function') { return; }
progress(Math.min(1, offset / MAX));
};
var nonce = createNonce();
var i = 0;
var prefix = u8.subarray(0, 2);
var metadataLength = decodePrefix(prefix);
var res = {
metadata: undefined,
};
var cancelled = false;
var cancel = function () {
cancelled = true;
};
var metaBox = new Uint8Array(u8.subarray(2, 2 + metadataLength));
var metaChunk = Nacl.secretbox.open(metaBox, nonce, key);
increment(nonce);
try {
res.metadata = JSON.parse(Nacl.util.encodeUTF8(metaChunk));
} catch (e) {
return window.setTimeout(function () {
done('E_METADATA_DECRYPTION');
});
}
if (!res.metadata) {
return void setTimeout(function () {
done('NO_METADATA');
});
}
var takeChunk = function (cb) {
setTimeout(function () {
var start = i * cypherChunkLength + 2 + metadataLength;
var end = start + cypherChunkLength;
i++;
var box = new Uint8Array(u8.subarray(start, end));
// decrypt the chunk
var plaintext = Nacl.secretbox.open(box, nonce, key);
increment(nonce);
if (!plaintext) { return cb('DECRYPTION_ERROR'); }
_progress(end);
cb(void 0, plaintext);
});
};
var chunks = [];
var again = function () {
if (cancelled) { return; }
takeChunk(function (e, plaintext) {
if (e) {
return setTimeout(function () {
done(e);
});
}
if (plaintext) {
if ((2 + metadataLength + i * cypherChunkLength) < u8.length) { // not done
chunks.push(plaintext);
return setTimeout(again);
}
chunks.push(plaintext);
res.content = joinChunks(chunks);
return done(void 0, res);
}
done('UNEXPECTED_ENDING');
});
};
again();
return {
cancel: cancel
};
};
// metadata
/* { filename: 'raccoon.jpg', type: 'image/jpeg' } */
var encrypt = function (u8, metadata, key) {
var nonce = createNonce();
// encode metadata
var plaintext = Nacl.util.decodeUTF8(JSON.stringify(metadata));
// if metadata is too large, drop the thumbnail.
if (plaintext.length > 65535) {
var temp = JSON.parse(JSON.stringify(metadata));
delete metadata.thumbnail;
plaintext = Nacl.util.decodeUTF8(JSON.stringify(temp));
}
var i = 0;
var state = 0;
var next = function (cb) {
if (state === 2) { return void setTimeout(cb); }
var start;
var end;
var part;
var box;
if (state === 0) { // metadata...
part = new Uint8Array(plaintext);
box = Nacl.secretbox(part, nonce, key);
increment(nonce);
if (box.length > 65535) {
return void cb('METADATA_TOO_LARGE');
}
var prefixed = new Uint8Array(encodePrefix(box.length)
.concat(slice(box)));
state++;
return void setTimeout(function () {
cb(void 0, prefixed);
});
}
// encrypt the rest of the file...
start = i * plainChunkLength;
end = start + plainChunkLength;
part = u8.subarray(start, end);
box = Nacl.secretbox(part, nonce, key);
increment(nonce);
i++;
// regular data is done
if (i * plainChunkLength >= u8.length) { state = 2; }
setTimeout(function () {
cb(void 0, box);
});
};
return next;
};
return {
decrypt: decrypt,
encrypt: encrypt,
joinChunks: joinChunks,
computeEncryptedSize: computeEncryptedSize,
};
});

12
www/convert/index.html
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<!DOCTYPE html>
<html>
<head>
<title>CryptPad</title>
<meta content="text/html; charset=utf-8" http-equiv="content-type"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="referrer" content="no-referrer" />
<script async data-bootload="main.js" data-main="/common/boot.js?ver=1.0" src="/bower_components/requirejs/require.js?ver=2.3.5"></script>
<link href="/customize/src/outer.css?ver=1.3.2" rel="stylesheet" type="text/css">
</head>
<body>
<iframe-placeholder>

18
www/convert/inner.html
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<!DOCTYPE html>
<html class="cp-app-noscroll">
<head>
<meta content="text/html; charset=utf-8" http-equiv="content-type"/>
<script async data-bootload="/convert/inner.js" data-main="/common/sframe-boot.js?ver=1.7" src="/bower_components/requirejs/require.js?ver=2.3.5"></script>
<style>
.loading-hidden { display: none; }
</style>
</head>
<body class="cp-app-convert">
<div id="cp-toolbar" class="cp-toolbar-container"></div>
<div id="cp-sidebarlayout-container"></div>
<noscript>
<p><strong>OOPS</strong> In order to do encryption in your browser, Javascript is really <strong>really</strong> required.</p>
<p><strong>OUPS</strong> Afin de pouvoir réaliser le chiffrement dans votre navigateur, Javascript est <strong>vraiment</strong> nécessaire.</p>
</noscript>
</body>

259
www/convert/inner.js
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define([
'jquery',
'/api/config',
'/bower_components/chainpad-crypto/crypto.js',
'/common/toolbar.js',
'/bower_components/nthen/index.js',
'/common/sframe-common.js',
'/common/hyperscript.js',
'/customize/messages.js',
'/common/common-interface.js',
'/common/common-util.js',
'/bower_components/file-saver/FileSaver.min.js',
'css!/bower_components/bootstrap/dist/css/bootstrap.min.css',
'css!/bower_components/components-font-awesome/css/font-awesome.min.css',
'less!/convert/app-convert.less',
], function (
$,
ApiConfig,
Crypto,
Toolbar,
nThen,
SFCommon,
h,
Messages,
UI,
Util
)
{
var APP = {};
var common;
var sFrameChan;
var debug = console.debug;
var x2tReady = Util.mkEvent(true);
var x2tInitialized = false;
var x2tInit = function(x2t) {
debug("x2t mount");
// x2t.FS.mount(x2t.MEMFS, {} , '/');
x2t.FS.mkdir('/working');
x2t.FS.mkdir('/working/media');
x2t.FS.mkdir('/working/fonts');
x2tInitialized = true;
x2tReady.fire();
//fetchFonts(x2t);
debug("x2t mount done");
};
var getX2t = function (cb) {
// XXX require http headers on firefox...
require(['/common/onlyoffice/x2t/x2t.js'], function() { // FIXME why does this fail without an access-control-allow-origin header?
var x2t = window.Module;
x2t.run();
if (x2tInitialized) {
debug("x2t runtime already initialized");
return void x2tReady.reg(function () {
cb(x2t);
});
}
x2t.onRuntimeInitialized = function() {
debug("x2t in runtime initialized");
// Init x2t js module
x2tInit(x2t);
x2tReady.reg(function () {
cb(x2t);
});
};
});
};
/*
Converting Data
This function converts a data in a specific format to the outputformat
The filename extension needs to represent the input format
Example: fileName=cryptpad.bin outputFormat=xlsx
*/
var getFormatId = function (ext) {
// Sheets
if (ext === 'xlsx') { return 257; }
if (ext === 'xls') { return 258; }
if (ext === 'ods') { return 259; }
if (ext === 'csv') { return 260; }
if (ext === 'pdf') { return 513; }
// Docs
if (ext === 'docx') { return 65; }
if (ext === 'doc') { return 66; }
if (ext === 'odt') { return 67; }
if (ext === 'txt') { return 69; }
if (ext === 'html') { return 70; }
// Slides
if (ext === 'pptx') { return 129; }
if (ext === 'ppt') { return 130; }
if (ext === 'odp') { return 131; }
return;
};
var getFromId = function (ext) {
var id = getFormatId(ext);
if (!id) { return ''; }
return '<m_nFormatFrom>'+id+'</m_nFormatFrom>';
};
var getToId = function (ext) {
var id = getFormatId(ext);
if (!id) { return ''; }
return '<m_nFormatTo>'+id+'</m_nFormatTo>';
};
var x2tConvertDataInternal = function(x2t, data, fileName, outputFormat) {
debug("Converting Data for " + fileName + " to " + outputFormat);
var inputFormat = fileName.split('.').pop();
x2t.FS.writeFile('/working/' + fileName, data);
var params = "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<TaskQueueDataConvert xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\">"
+ "<m_sFileFrom>/working/" + fileName + "</m_sFileFrom>"
+ "<m_sFileTo>/working/" + fileName + "." + outputFormat + "</m_sFileTo>"
+ getFromId(inputFormat)
+ getToId(outputFormat)
+ "<m_bIsNoBase64>false</m_bIsNoBase64>"
+ "</TaskQueueDataConvert>";
// writing params file to mounted working disk (in memory)
x2t.FS.writeFile('/working/params.xml', params);
// running conversion
x2t.ccall("runX2T", ["number"], ["string"], ["/working/params.xml"]);
// reading output file from working disk (in memory)
var result;
try {
result = x2t.FS.readFile('/working/' + fileName + "." + outputFormat);
} catch (e) {
console.error(e, x2t.FS);
debug("Failed reading converted file");
UI.warn(Messages.error);
return "";
}
return result;
};
var x2tConverter = function (typeSrc, typeTarget) {
return function (data, name, cb) {
getX2t(function (x2t) {
if (typeSrc === 'ods') {
data = x2tConvertDataInternal(x2t, data, name, 'xlsx');
name += '.xlsx';
}
if (typeSrc === 'odt') {
data = x2tConvertDataInternal(x2t, data, name, 'docx');
name += '.docx';
}
if (typeSrc === 'odp') {
data = x2tConvertDataInternal(x2t, data, name, 'pptx');
name += '.pptx';
}
cb(x2tConvertDataInternal(x2t, data, name, typeTarget));
});
};
};
var CONVERTERS = {
xlsx: {
//pdf: x2tConverter('xlsx', 'pdf'),
ods: x2tConverter('xlsx', 'ods'),
bin: x2tConverter('xlsx', 'bin'),
},
ods: {
//pdf: x2tConverter('ods', 'pdf'),
xlsx: x2tConverter('ods', 'xlsx'),
bin: x2tConverter('ods', 'bin'),
},
odt: {
docx: x2tConverter('odt', 'docx'),
txt: x2tConverter('odt', 'txt'),
bin: x2tConverter('odt', 'bin'),
},
docx: {
odt: x2tConverter('docx', 'odt'),
txt: x2tConverter('docx', 'txt'),
bin: x2tConverter('docx', 'bin'),
},
txt: {
odt: x2tConverter('txt', 'odt'),
docx: x2tConverter('txt', 'docx'),
bin: x2tConverter('txt', 'bin'),
},
odp: {
pptx: x2tConverter('odp', 'pptx'),
bin: x2tConverter('odp', 'bin'),
},
pptx: {
odp: x2tConverter('pptx', 'odp'),
bin: x2tConverter('pptx', 'bin'),
},
};
Messages.convertPage = "Convert"; // XXX
Messages.convert_hint = "Pick the file you want to convert. The list of output format will be visible afterward.";
var createToolbar = function () {
var displayed = ['useradmin', 'newpad', 'limit', 'pageTitle', 'notifications'];
var configTb = {
displayed: displayed,
sfCommon: common,
$container: APP.$toolbar,
pageTitle: Messages.convertPage,
metadataMgr: common.getMetadataMgr(),
};
APP.toolbar = Toolbar.create(configTb);
APP.toolbar.$rightside.hide();
};
nThen(function (waitFor) {
$(waitFor(UI.addLoadingScreen));
SFCommon.create(waitFor(function (c) { APP.common = common = c; }));
}).nThen(function (waitFor) {
APP.$container = $('#cp-sidebarlayout-container');
APP.$toolbar = $('#cp-toolbar');
APP.$leftside = $('<div>', {id: 'cp-sidebarlayout-leftside'}).appendTo(APP.$container);
APP.$rightside = $('<div>', {id: 'cp-sidebarlayout-rightside'}).appendTo(APP.$container);
sFrameChan = common.getSframeChannel();
sFrameChan.onReady(waitFor());
}).nThen(function (/*waitFor*/) {
createToolbar();
var hint = h('p.cp-convert-hint', Messages.convert_hint);
var picker = h('input', {
type: 'file'
});
APP.$rightside.append([hint, picker]);
$(picker).on('change', function () {
var file = picker.files[0];
var name = file && file.name;
var reader = new FileReader();
var parsed = file && file.name && /.+\.([^.]+)$/.exec(file.name);
var ext = parsed && parsed[1];
reader.onload = function (e) {
if (CONVERTERS[ext]) {
Object.keys(CONVERTERS[ext]).forEach(function (to) {
var button = h('button.btn', to);
$(button).click(function () {
CONVERTERS[ext][to](new Uint8Array(e.target.result), name, function (a) {
var n = name.slice(0, -ext.length) + to;
var blob = new Blob([a], {type: "application/bin;charset=utf-8"});
window.saveAs(blob, n);
});
}).appendTo(APP.$rightside);
});
}
};
reader.readAsArrayBuffer(file, 'application/octet-stream');
});
UI.removeLoadingScreen();
});
});

28
www/convert/main.js
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// Load #1, load as little as possible because we are in a race to get the loading screen up.
define([
'/bower_components/nthen/index.js',
'/api/config',
'/common/dom-ready.js',
'/common/sframe-common-outer.js'
], function (nThen, ApiConfig, DomReady, SFCommonO) {
// Loaded in load #2
nThen(function (waitFor) {
DomReady.onReady(waitFor());
}).nThen(function (waitFor) {
SFCommonO.initIframe(waitFor, true);
}).nThen(function (/*waitFor*/) {
var category;
if (window.location.hash) {
category = window.location.hash.slice(1);
window.location.hash = '';
}
var addData = function (obj) {
if (category) { obj.category = category; }
};
SFCommonO.start({
noRealtime: true,
addData: addData
});
});
});
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