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Add support for version 2 hashes needed for password-protected pads

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This commit is contained in:
yflory
2018-04-24 17:22:33 +02:00
parent fd89811479
commit 811463b870
14 changed files with 254 additions and 100 deletions
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215
www/common/common-hash.js
View File

@@ -19,7 +19,50 @@ define([
.decodeUTF8(JSON.stringify(list))));
};
var getEditHashFromKeys = Hash.getEditHashFromKeys = function (chanKey, keys) {
var getEditHashFromKeys = Hash.getEditHashFromKeys = function (secret) {
var version = secret.version;
var data = secret.keys;
if (version === 0) {
return secret.channel + secret.key;
}
if (version === 1) {
if (!data.editKeyStr) { return; }
return '/1/edit/' + hexToBase64(secret.channel) +
'/' + Crypto.b64RemoveSlashes(data.editKeyStr) + '/';
}
if (version === 2) {
if (!data.editKeyStr) { return; }
var pass = secret.password ? 'p/' : '';
return '/2/' + secret.type + '/edit/' + Crypto.b64RemoveSlashes(data.editKeyStr) + '/' + pass;
}
};
var getViewHashFromKeys = Hash.getViewHashFromKeys = function (secret) {
var version = secret.version;
var data = secret.keys;
if (version === 0) { return; }
if (version === 1) {
if (!data.viewKeyStr) { return; }
return '/1/view/' + hexToBase64(secret.channel) +
'/'+Crypto.b64RemoveSlashes(data.viewKeyStr)+'/';
}
if (version === 2) {
if (!data.viewKeyStr) { return; }
var pass = secret.password ? 'p/' : '';
return '/2/' + secret.type + '/view/' + Crypto.b64RemoveSlashes(data.viewKeyStr) + '/' + pass;
}
};
var getFileHashFromKeys = Hash.getFileHashFromKeys = function (secret) {
var version = secret.version;
var data = secret.keys;
if (version === 0) { return; }
if (version === 1) {
return '/1/' + hexToBase64(secret.channel) + '/' +
Crypto.b64RemoveSlashes(data.fileKeyStr) + '/';
}
};
// V1
/*var getEditHashFromKeys = Hash.getEditHashFromKeys = function (chanKey, keys) {
if (typeof keys === 'string') {
return chanKey + keys;
}
@@ -34,7 +77,7 @@ define([
};
var getFileHashFromKeys = Hash.getFileHashFromKeys = function (fileKey, cryptKey) {
return '/1/' + hexToBase64(fileKey) + '/' + Crypto.b64RemoveSlashes(cryptKey) + '/';
};
};*/
Hash.getUserHrefFromKeys = function (origin, username, pubkey) {
return origin + '/user/#/1/' + username + '/' + pubkey.replace(/\//g, '-');
};
@@ -43,6 +86,24 @@ define([
return s.replace(/\/+/g, '/');
};
Hash.createChannelId = function () {
var id = uint8ArrayToHex(Crypto.Nacl.randomBytes(16));
if (id.length !== 32 || /[^a-f0-9]/.test(id)) {
throw new Error('channel ids must consist of 32 hex characters');
}
return id;
};
Hash.createRandomHash = function (type, password) {
var cryptor = Crypto.createEditCryptor2(void 0, void 0, password);
return getEditHashFromKeys({
password: Boolean(password),
version: 2,
type: type,
keys: { editKeyStr: cryptor.editKeyStr }
});
};
/*
Version 0
/pad/#67b8385b07352be53e40746d2be6ccd7XAYSuJYYqa9NfmInyHci7LNy
@@ -50,25 +111,49 @@ Version 1
/code/#/1/edit/3Ujt4F2Sjnjbis6CoYWpoQ/usn4+9CqVja8Q7RZOGTfRgqI
*/
var parseTypeHash = Hash.parseTypeHash = function (type, hash) {
var parseTypeHash = Hash.parseTypeHash = function (type, hash, password) {
if (!hash) { return; }
var parsed = {};
var hashArr = fixDuplicateSlashes(hash).split('/');
if (['media', 'file', 'user', 'invite'].indexOf(type) === -1) {
parsed.type = 'pad';
if (hash.slice(0,1) !== '/' && hash.length >= 56) {
if (hash.slice(0,1) !== '/' && hash.length >= 56) { // Version 0
// Old hash
parsed.channel = hash.slice(0, 32);
parsed.key = hash.slice(32, 56);
parsed.version = 0;
return parsed;
}
if (hashArr[1] && hashArr[1] === '1') {
var options;
if (hashArr[1] && hashArr[1] === '1') { // Version 1
parsed.version = 1;
parsed.mode = hashArr[2];
parsed.channel = hashArr[3];
parsed.key = hashArr[4].replace(/-/g, '/');
var options = hashArr.slice(5);
parsed.key = Crypto.b64AddSlashes(hashArr[4]);
options = hashArr.slice(5);
parsed.present = options.indexOf('present') !== -1;
parsed.embed = options.indexOf('embed') !== -1;
return parsed;
}
if (hashArr[1] && hashArr[1] === '2') { // Version 2
parsed.version = 2;
parsed.app = hashArr[2];
parsed.mode = hashArr[3];
parsed.key = hashArr[4];
var cryptor;
if (parsed.mode === "edit") {
cryptor = Crypto.createEditCryptor2(parsed.key, void 0, password);
} else if (parsed.mode === "view") {
cryptor = Crypto.createViewCryptor2(parsed.key, password);
}
parsed.channel = cryptor.chanId;
parsed.cryptKey = cryptor.cryptKey;
parsed.validateKey = cryptor.validateKey;
options = hashArr.slice(5);
parsed.password = options.indexOf('p') !== -1;
parsed.present = options.indexOf('present') !== -1;
parsed.embed = options.indexOf('embed') !== -1;
return parsed;
@@ -107,7 +192,7 @@ Version 1
}
return;
};
var parsePadUrl = Hash.parsePadUrl = function (href) {
var parsePadUrl = Hash.parsePadUrl = function (href, password) {
var patt = /^https*:\/\/([^\/]*)\/(.*?)\//i;
var ret = {};
@@ -125,17 +210,33 @@ Version 1
url += ret.type + '/';
if (!ret.hashData) { return url; }
if (ret.hashData.type !== 'pad') { return url + '#' + ret.hash; }
if (ret.hashData.version !== 1) { return url + '#' + ret.hash; }
url += '#/' + ret.hashData.version +
'/' + ret.hashData.mode +
'/' + ret.hashData.channel.replace(/\//g, '-') +
'/' + ret.hashData.key.replace(/\//g, '-') +'/';
if (options.embed) {
url += 'embed/';
}
if (options.present) {
url += 'present/';
if (ret.hashData.version === 0) { return url + '#' + ret.hash; }
var hash;
if (options.readOnly === true ||
(typeof (options.readOnly === "undefined") && ret.hashData.mode === "view")) {
hash = getViewHashFromKeys({
version: ret.hashData.version,
type: ret.hashData.app,
channel: base64ToHex(ret.hashData.channel || ''),
password: ret.hashData.password,
keys: {
viewKeyStr: ret.hashData.key
}
});
} else {
hash = getEditHashFromKeys({
version: ret.hashData.version,
type: ret.hashData.app,
channel: base64ToHex(ret.hashData.channel || ''),
password: ret.hashData.password,
keys: {
editKeyStr: ret.hashData.key
}
});
}
url += '#' + hash;
if (options.embed) { url += 'embed/'; }
if (options.present) { url += 'present/'; }
return url;
};
@@ -143,7 +244,7 @@ Version 1
idx = href.indexOf('/#');
ret.type = href.slice(1, idx);
ret.hash = href.slice(idx + 2);
ret.hashData = parseTypeHash(ret.type, ret.hash);
ret.hashData = parseTypeHash(ret.type, ret.hash, password);
return ret;
}
@@ -154,7 +255,7 @@ Version 1
});
idx = href.indexOf('/#');
ret.hash = href.slice(idx + 2);
ret.hashData = parseTypeHash(ret.type, ret.hash);
ret.hashData = parseTypeHash(ret.type, ret.hash, password);
return ret;
};
@@ -170,11 +271,13 @@ Version 1
* - no argument: use the URL hash or create one if it doesn't exist
* - secretHash provided: use secretHash to find the keys
*/
Hash.getSecrets = function (type, secretHash) {
Hash.getSecrets = function (type, secretHash, password) {
var secret = {};
var generate = function () {
secret.keys = Crypto.createEditCryptor();
secret.key = Crypto.createEditCryptor().editKeyStr;
secret.keys = Crypto.createEditCryptor2(void 0, void 0, password);
secret.channel = base64ToHex(secret.keys.chanId);
secret.version = 2;
secret.type = type;
};
if (!secretHash && !window.location.hash) { //!/#/.test(window.location.href)) {
generate();
@@ -203,9 +306,10 @@ Version 1
// Old hash
secret.channel = parsed.channel;
secret.key = parsed.key;
}
else if (parsed.version === 1) {
secret.version = 0;
} else if (parsed.version === 1) {
// New hash
secret.version = 1;
if (parsed.type === "pad") {
secret.channel = base64ToHex(parsed.channel);
if (parsed.mode === 'edit') {
@@ -229,45 +333,60 @@ Version 1
// version 2 hashes are to be used for encrypted blobs
throw new Error("User hashes can't be opened (yet)");
}
} else if (parsed.version === 2) {
// New hash
secret.version = 2;
secret.type = type;
secret.password = Boolean(password);
if (parsed.type === "pad") {
if (parsed.mode === 'edit') {
secret.keys = Crypto.createEditCryptor2(parsed.key);
secret.channel = base64ToHex(secret.keys.chanId);
secret.key = secret.keys.editKeyStr;
if (secret.channel.length !== 32 || secret.key.length !== 24) {
throw new Error("The channel key and/or the encryption key is invalid");
}
}
else if (parsed.mode === 'view') {
secret.keys = Crypto.createViewCryptor2(parsed.key);
secret.channel = base64ToHex(secret.keys.chanId);
if (secret.channel.length !== 32) {
throw new Error("The channel key is invalid");
}
}
} else if (parsed.type === "file") {
throw new Error("File hashes should be version 1");
} else if (parsed.type === "user") {
throw new Error("User hashes can't be opened (yet)");
}
}
}
return secret;
};
Hash.getHashes = function (channel, secret) {
Hash.getHashes = function (secret) {
var hashes = {};
if (!secret.keys) {
secret = JSON.parse(JSON.stringify(secret));
if (!secret.keys && !secret.key) {
console.error('e');
return hashes;
} else if (!secret.keys) {
secret.keys = {};
}
if (secret.keys.editKeyStr) {
hashes.editHash = getEditHashFromKeys(channel, secret.keys);
if (secret.keys.editKeyStr || (secret.version === 0 && secret.key)) {
hashes.editHash = getEditHashFromKeys(secret);
}
if (secret.keys.viewKeyStr) {
hashes.viewHash = getViewHashFromKeys(channel, secret.keys);
hashes.viewHash = getViewHashFromKeys(secret);
}
if (secret.keys.fileKeyStr) {
hashes.fileHash = getFileHashFromKeys(channel, secret.keys.fileKeyStr);
hashes.fileHash = getFileHashFromKeys(secret);
}
return hashes;
};
var createChannelId = Hash.createChannelId = function () {
var id = uint8ArrayToHex(Crypto.Nacl.randomBytes(16));
if (id.length !== 32 || /[^a-f0-9]/.test(id)) {
throw new Error('channel ids must consist of 32 hex characters');
}
return id;
};
Hash.createRandomHash = function () {
// 16 byte channel Id
var channelId = Util.hexToBase64(createChannelId());
// 18 byte encryption key
var key = Crypto.b64RemoveSlashes(Crypto.rand64(18));
return '/1/edit/' + [channelId, key].join('/') + '/';
};
// STORAGE
Hash.findWeaker = function (href, recents) {
var rHref = href || getRelativeHref(window.location.href);
@@ -336,7 +455,7 @@ Version 1
parsed = parsed.hashData;
if (parsed.version === 0) {
return parsed.channel;
} else if (parsed.version !== 1 && parsed.version !== 2) {
} else if (!parsed.version) {
console.error("parsed href had no version");
console.error(parsed);
return;

8
www/common/common-ui-elements.js
View File

@@ -60,6 +60,10 @@ define([
var getPropertiesData = function (common, cb) {
var data = {};
NThen(function (waitFor) {
common.getPadAttribute('password', waitFor(function (err, val) {
data.password = val;
}));
}).nThen(function (waitFor) {
common.getPadAttribute('href', waitFor(function (err, val) {
var base = common.getMetadataMgr().getPrivateData().origin;
@@ -75,9 +79,9 @@ define([
if (parsed.hashData.type !== "pad") { return; }
var i = data.href.indexOf('#') + 1;
var hBase = data.href.slice(0, i);
var hrefsecret = Hash.getSecrets(parsed.type, parsed.hash);
var hrefsecret = Hash.getSecrets(parsed.type, parsed.hash, data.password);
if (!hrefsecret.keys) { return; }
var viewHash = Hash.getViewHashFromKeys(hrefsecret.channel, hrefsecret.keys);
var viewHash = Hash.getViewHashFromKeys(hrefsecret);
data.roHref = hBase + viewHash;
}));
common.getPadAttribute('atime', waitFor(function (err, val) {

14
www/common/cryptget.js
View File

@@ -20,9 +20,9 @@ define([
}
};
var makeConfig = function (hash) {
var makeConfig = function (hash, password) {
// We can't use cryptget with a file or a user so we can use 'pad' as hash type
var secret = Hash.getSecrets('pad', hash);
var secret = Hash.getSecrets('pad', hash, password);
if (!secret.keys) { secret.keys = secret.key; } // support old hashses
var config = {
websocketURL: NetConfig.getWebsocketURL(),
@@ -43,12 +43,15 @@ define([
Object.keys(b).forEach(function (k) { a[k] = b[k]; });
};
// XXX make sure we pass the password here in opt
var get = function (hash, cb, opt) {
if (typeof(cb) !== 'function') {
throw new Error('Cryptget expects a callback');
}
opt = opt || {};
var config = makeConfig(hash, opt.password);
var Session = { cb: cb, };
var config = makeConfig(hash);
config.onReady = function (info) {
var rt = Session.session = info.realtime;
@@ -60,13 +63,16 @@ define([
Session.realtime = CPNetflux.start(config);
};
// XXX make sure we pass the password here in opt
var put = function (hash, doc, cb, opt) {
if (typeof(cb) !== 'function') {
throw new Error('Cryptput expects a callback');
}
opt = opt || {};
var config = makeConfig(hash);
var config = makeConfig(hash, opt.password);
var Session = { cb: cb, };
config.onReady = function (info) {
var realtime = Session.session = info.realtime;
Session.network = info.network;

10
www/common/cryptpad-common.js
View File

@@ -260,8 +260,8 @@ define([
});
};
common.isNewChannel = function (href, cb) {
postMessage('IS_NEW_CHANNEL', {href: href}, function (obj) {
common.isNewChannel = function (href, password, cb) {
postMessage('IS_NEW_CHANNEL', {href: href, password: password}, function (obj) {
if (obj.error) { return void cb(obj.error); }
if (!obj) { return void cb('INVALID_RESPONSE'); }
cb(undefined, obj.isNew);
@@ -395,7 +395,7 @@ define([
common.saveAsTemplate = function (Cryptput, data, cb) {
var p = Hash.parsePadUrl(window.location.href);
if (!p.type) { return; }
var hash = Hash.createRandomHash();
var hash = Hash.createRandomHash(p.type);
var href = '/' + p.type + '/#' + hash;
Cryptput(hash, data.toSave, function (e) {
if (e) { throw new Error(e); }
@@ -556,13 +556,13 @@ define([
common.getShareHashes = function (secret, cb) {
var hashes;
if (!window.location.hash) {
hashes = Hash.getHashes(secret.channel, secret);
hashes = Hash.getHashes(secret);
return void cb(null, hashes);
}
var parsed = Hash.parsePadUrl(window.location.href);
if (!parsed.type || !parsed.hashData) { return void cb('E_INVALID_HREF'); }
if (parsed.type === 'file') { secret.channel = Util.base64ToHex(secret.channel); }
hashes = Hash.getHashes(secret.channel, secret);
hashes = Hash.getHashes(secret);
if (!hashes.editHash && !hashes.viewHash && parsed.hashData && !parsed.hashData.mode) {
// It means we're using an old hash

10
www/common/outer/async-store.js
View File

@@ -316,7 +316,7 @@ define([
Store.isNewChannel = function (data, cb) {
if (!store.anon_rpc) { return void cb({error: 'ANON_RPC_NOT_READY'}); }
var channelId = Hash.hrefToHexChannelId(data.href);
var channelId = Hash.hrefToHexChannelId(data.href, data.password);
store.anon_rpc.send("IS_NEW_CHANNEL", channelId, function (e, response) {
if (e) { return void cb({error: e}); }
if (response && response.length && typeof(response[0]) === 'boolean') {
@@ -524,7 +524,7 @@ define([
*/
Store.createReadme = function (data, cb) {
require(['/common/cryptget.js'], function (Crypt) {
var hash = Hash.createRandomHash();
var hash = Hash.createRandomHash('pad');
Crypt.put(hash, data.driveReadme, function (e) {
if (e) {
return void cb({ error: "Error while creating the default pad:"+ e});
@@ -717,7 +717,7 @@ define([
// If the hash is different but represents the same channel, check if weaker or stronger
if (!shouldUpdate &&
h.version === 1 && h2.version === 1 &&
h.version === h2.version &&
h.channel === h2.channel) {
// We had view & now we have edit, update
if (h2.mode === 'view' && h.mode === 'edit') { shouldUpdate = true; }
@@ -1123,7 +1123,7 @@ define([
};
var connect = function (data, cb) {
var hash = data.userHash || data.anonHash || Hash.createRandomHash();
var hash = data.userHash || data.anonHash || Hash.createRandomHash('drive');
storeHash = hash;
if (!hash) {
throw new Error('[Store.init] Unable to find or create a drive hash. Aborting...');
@@ -1150,7 +1150,7 @@ define([
store.realtime = info.realtime;
store.network = info.network;
if (!data.userHash) {
returned.anonHash = Hash.getEditHashFromKeys(info.channel, secret.keys);
returned.anonHash = Hash.getEditHashFromKeys(secret);
}
}).on('ready', function () {
if (store.userObject) { return; } // the store is already ready, it is a reconnection

2
www/common/outer/local-store.js
View File

@@ -108,7 +108,7 @@ define([
// Make sure we have an FS_hash in localStorage before reloading all the tabs
// so that we don't end up with tabs using different anon hashes
if (!LocalStore.getFSHash()) {
LocalStore.setFSHash(Hash.createRandomHash());
LocalStore.setFSHash(Hash.createRandomHash('drive'));
}
eraseTempSessionValues();

9
www/common/outer/upload.js
View File

@@ -51,7 +51,14 @@ define([
var b64Key = Nacl.util.encodeBase64(key);
var hash = Hash.getFileHashFromKeys(id, b64Key);
var secret = {
version: 1,
channel: id,
keys: {
fileKeyStr: b64Key
}
};
var hash = Hash.getFileHashFromKeys(secret);
var href = '/file/#' + hash;
var title = metadata.name;

30
www/common/sframe-common-outer.js
View File

@@ -121,11 +121,17 @@ define([
});
}));
} else {
secret = Utils.Hash.getSecrets();
if (!secret.channel) {
var parsedType = Utils.Hash.parsePadUrl(window.location.href).type;
// XXX prompt the password here if we have a hash containing /p/
// OR get it from the pad attributes
secret = Utils.Hash.getSecrets(parsedType);
// TODO: New hashes V2 already contain a channel ID so we can probably remove the following lines
//if (!secret.channel) {
// New pad: create a new random channel id
secret.channel = Utils.Hash.createChannelId();
}
//secret.channel = Utils.Hash.createChannelId();
//}
Cryptpad.getShareHashes(secret, waitFor(function (err, h) { hashes = h; }));
}
}).nThen(function (waitFor) {
@@ -133,7 +139,9 @@ define([
if (!window.location.hash) { isNewFile = true; return; }
if (realtime) {
Cryptpad.isNewChannel(window.location.href, waitFor(function (e, isNew) {
// XXX get password
var password;
Cryptpad.isNewChannel(window.location.href, password, waitFor(function (e, isNew) {
if (e) { return console.error(e); }
isNewFile = Boolean(isNew);
}));
@@ -635,7 +643,7 @@ define([
isNewHash: isNewHash,
readOnly: readOnly,
crypto: Crypto.createEncryptor(secret.keys),
onConnect: function (wc) {
onConnect: function () {
if (window.location.hash && window.location.hash !== '#') {
window.location = parsed.getUrl({
present: parsed.hashData.present,
@@ -644,7 +652,7 @@ define([
return;
}
if (readOnly || cfg.noHash) { return; }
replaceHash(Utils.Hash.getEditHashFromKeys(wc, secret.keys));
replaceHash(Utils.Hash.getEditHashFromKeys(secret));
}
};
@@ -671,8 +679,10 @@ define([
sframeChan.on('Q_CREATE_PAD', function (data, cb) {
if (!isNewFile || rtStarted) { return; }
// Create a new hash
var newHash = Utils.Hash.createRandomHash();
secret = Utils.Hash.getSecrets(parsed.type, newHash);
// XXX add password here
var password = data.password;
var newHash = Utils.Hash.createRandomHash(parsed.type, password);
secret = Utils.Hash.getSecrets(parsed.type, newHash, password);
// Update the hash in the address bar
var ohc = window.onhashchange;
@@ -684,7 +694,7 @@ define([
// Update metadata values and send new metadata inside
parsed = Utils.Hash.parsePadUrl(window.location.href);
defaultTitle = Utils.Hash.getDefaultName(parsed);
hashes = Utils.Hash.getHashes(secret.channel, secret);
hashes = Utils.Hash.getHashes(secret);
readOnly = false;
updateMeta();

1
www/common/sframe-common.js
View File

@@ -114,6 +114,7 @@ define([
};
funcs.getMediatagFromHref = function (href) {
var parsed = Hash.parsePadUrl(href);
// FILE_HASHES2
var secret = Hash.getSecrets('file', parsed.hash);
var data = ctx.metadataMgr.getPrivateData();
if (secret.keys && secret.channel) {