cryptpad/www/common/outer/sharedfolder.js

351 lines
13 KiB
JavaScript

This file contains invisible Unicode characters!

This file contains invisible Unicode characters that may be processed differently from what appears below. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to reveal hidden characters.

define([
'/common/common-hash.js',
'/common/common-util.js',
'/common/userObject.js',
'/bower_components/nthen/index.js',
'/bower_components/chainpad-crypto/crypto.js',
'/bower_components/chainpad-listmap/chainpad-listmap.js',
'/bower_components/chainpad/chainpad.dist.js',
], function (Hash, Util, UserObject,
nThen, Crypto, Listmap, ChainPad) {
var SF = {};
/* load
create and load a proxy using listmap for a given shared folder
- config: network and "manager" (either the user one or a team manager)
- id: shared folder id
*/
var allSharedFolders = {};
// No version: visible edit
// Version 2: encrypted edit links
SF.checkMigration = function (secondaryKey, proxy, uo, _cb) {
var cb = Util.once(Util.mkAsync(_cb));
var drive = proxy.drive || proxy;
// View access: can't migrate
if (!secondaryKey) { return void cb(); }
// Already migrated: nothing to do
if (drive.version >= 2) { return void cb(); }
// Not yet migrating: migrate
if (!drive.migrateRo) { return void uo.migrateReadOnly(cb); }
// Already migrating: wait for the end...
var done = false;
var to;
var it = setInterval(function () {
if (drive.version >= 2) {
done = true;
clearTimeout(to);
clearInterval(it);
return void cb();
}
}, 100);
to = setTimeout(function () {
clearInterval(it);
uo.migrateReadOnly(function () {
done = true;
cb();
});
}, 20000);
var path = proxy.drive ? ['drive', 'version'] : ['version'];
proxy.on('change', path, function () {
if (done) { return; }
if (drive.version >= 2) {
done = true;
clearTimeout(to);
clearInterval(it);
cb();
}
});
};
// SFMIGRATION: only needed if we want a manual migration from the share modal...
SF.migrate = function (channel) {
var sf = allSharedFolders[channel];
if (!sf) { return; }
var clients = sf.teams;
if (!Array.isArray(clients) || !clients.length) { return; }
var c = clients[0];
// No secondaryKey? ==> already migrated ==> abort
if (!c.secondaryKey) { return; }
var f = Util.find(c, ['store', 'manager', 'folders', c.id]);
// Can't find the folder: abort
if (!f) { return; }
// Already migrated: abort
if (!f.proxy || f.proxy.version) { return; }
f.userObject.migrateReadOnly(function () {
clients.forEach(function (obj) {
var uo = Util.find(obj, ['store', 'manager', 'folders', obj.id, 'userObject']);
uo.setReadOnly(false, obj.secondarykey);
});
});
};
SF.load = function (config, id, data, _cb) {
var cb = Util.once(Util.mkAsync(_cb));
var network = config.network;
var store = config.store;
var isNew = config.isNew;
var isNewChannel = config.isNewChannel;
var teamId = store.id;
var handler = store.handleSharedFolder;
var href = store.manager.user.userObject.getHref(data);
var parsed = Hash.parsePadUrl(href);
var secret = Hash.getSecrets('drive', parsed.hash, data.password);
// If we don't have valid keys, abort and remove the proxy to make sure
// we don't block the drive permanently
if (!secret.keys) {
store.manager.deprecateProxy(id);
return void cb(null);
}
var secondaryKey = secret.keys.secondaryKey;
// If we try to load an existing shared folder (isNew === false) but this folder
// doesn't exist in the database, abort and cb
nThen(function (waitFor) {
isNewChannel(null, { channel: secret.channel }, waitFor(function (obj) {
if (obj.isNew && !isNew) {
store.manager.deprecateProxy(id, secret.channel);
waitFor.abort();
return void cb(null);
}
}));
}).nThen(function () {
var sf = allSharedFolders[secret.channel];
if (sf && sf.readOnly && secondaryKey) {
// We were in readOnly mode and now we know the edit keys!
SF.upgrade(secret.channel, secret);
}
if (sf && sf.ready && sf.rt) {
// The shared folder is already loaded, return its data
setTimeout(function () {
var leave = function () { SF.leave(secret.channel, teamId); };
/*
var uo = store.manager.addProxy(id, sf.rt, leave, secondaryKey);
// NOTE: Shared folder migration, disable for now
SF.checkMigration(secondaryKey, sf.rt.proxy, uo, function () {
cb(sf.rt, sf.metadata);
});
*/
store.manager.addProxy(id, sf.rt, leave, secondaryKey);
cb(sf.rt, sf.metadata);
});
sf.teams.push({
cb: cb,
store: store,
id: id
});
if (handler) { handler(id, sf.rt); }
return;
}
if (sf && !sf.ready && sf.rt) {
// The shared folder is loading, add our callbacks to the queue
sf.teams.push({
cb: cb,
store: store,
secondaryKey: secondaryKey,
id: id
});
if (handler) { handler(id, sf.rt); }
return;
}
sf = allSharedFolders[secret.channel] = {
teams: [{
cb: cb,
store: store,
secondaryKey: secondaryKey,
id: id
}],
readOnly: !Boolean(secondaryKey)
};
var owners = data.owners;
var listmapConfig = {
data: {},
channel: secret.channel,
readOnly: !Boolean(secondaryKey),
crypto: Crypto.createEncryptor(secret.keys),
userName: 'sharedFolder',
logLevel: 1,
ChainPad: ChainPad,
classic: true,
network: network,
metadata: {
validateKey: secret.keys.validateKey || undefined,
owners: owners
}
};
var rt = sf.rt = Listmap.create(listmapConfig);
rt.proxy.on('ready', function (info) {
if (isNew && !Object.keys(rt.proxy).length) {
// New Shared folder: no migration required
rt.proxy.version = 2;
}
if (!sf.teams) {
return;
}
sf.teams.forEach(function (obj) {
var leave = function () { SF.leave(secret.channel, obj.store.id); };
/*
var uo = obj.store.manager.addProxy(obj.id, rt, leave, obj.secondaryKey);
// NOTE: Shared folder migration, disable for now
SF.checkMigration(secondaryKey, rt.proxy, uo, function () {
obj.cb(sf.rt, info.metadata);
});
*/
obj.store.manager.addProxy(obj.id, rt, leave, obj.secondaryKey);
obj.cb(sf.rt, info.metadata);
});
sf.metadata = info.metadata;
sf.ready = true;
});
rt.proxy.on('error', function (info) {
if (info && info.error) {
if (info.error === "EDELETED" ) {
try {
// Deprecate the shared folder from each team
// We can only hide it
sf.teams.forEach(function (obj) {
obj.store.manager.deprecateProxy(obj.id, secret.channel);
if (obj.store.handleSharedFolder) {
obj.store.handleSharedFolder(obj.id, null);
}
});
} catch (e) {}
delete allSharedFolders[secret.channel];
// This shouldn't be called on init because we're calling "isNewChannel" first,
// but we can still call "cb" just in case. This wait we make sure we won't block
// the initial "waitFor"
return void cb();
}
if (info.error === "ERESTRICTED" ) {
// This shouldn't happen: allow list are disabled for shared folders
// but call "cb" to make sure we won't block the initial "waitFor"
sf.teams.forEach(function (obj) {
obj.store.manager.restrictedProxy(obj.id, secret.channel);
});
delete allSharedFolders[secret.channel];
return void cb();
}
}
});
if (handler) { handler(id, rt); }
});
};
SF.upgrade = function (channel, secret) {
var sf = allSharedFolders[channel];
if (!sf || !sf.readOnly) { return; }
if (!sf.rt.setReadOnly) { return; }
if (!secret.keys || !secret.keys.editKeyStr) { return; }
var crypto = Crypto.createEncryptor(secret.keys);
sf.readOnly = false;
sf.rt.setReadOnly(false, crypto);
};
SF.leave = function (channel, teamId) {
var sf = allSharedFolders[channel];
if (!sf) { return; }
var clients = sf.teams;
if (!Array.isArray(clients)) { return; }
// Remove the shared folder from the client's store and
// remove the client/team from our list
var idx;
clients.some(function (obj, i) {
if (obj.store.id === teamId) {
if (obj.store.handleSharedFolder) {
obj.store.handleSharedFolder(obj.id, null);
}
idx = i;
return true;
}
});
if (typeof (idx) === "undefined") { return; }
// Remove the selected team
clients.splice(idx, 1);
//If all the teams have closed this shared folder, stop it
if (clients.length) { return; }
if (sf.rt && sf.rt.stop) {
sf.rt.stop();
}
};
// Update the password locally
SF.updatePassword = function (Store, data, network, cb) {
var oldChannel = data.oldChannel;
var href = data.href;
var password = data.password;
var parsed = Hash.parsePadUrl(href);
var secret = Hash.getSecrets(parsed.type, parsed.hash, password);
var sf = allSharedFolders[oldChannel];
if (!sf) { return void cb({ error: 'ENOTFOUND' }); }
if (sf.rt && sf.rt.stop) {
try { sf.rt.stop(); } catch (e) {}
}
var nt = nThen;
sf.teams.forEach(function (obj) {
nt = nt(function (waitFor) {
var s = obj.store;
var sfId = obj.id;
var shared = Util.find(s.proxy, ['drive', UserObject.SHARED_FOLDERS]) || {};
if (!sfId || !shared[sfId]) { return; }
var sf = JSON.parse(JSON.stringify(shared[sfId]));
sf.password = password;
SF.load({
network: network,
store: s,
isNewChannel: Store.isNewChannel
}, sfId, sf, waitFor());
if (!s.rpc) { return; }
s.rpc.unpin([oldChannel], waitFor());
s.rpc.pin([secret.channel], waitFor());
}).nThen;
});
nt(function () {
cb();
});
};
/* loadSharedFolders
load all shared folder stored in a given drive
- store: user or team main store
- userObject: userObject associated to the main drive
- handler: a function (sfid, rt) called for each shared folder loaded
*/
SF.loadSharedFolders = function (Store, network, store, userObject, waitFor, progress) {
var shared = Util.find(store.proxy, ['drive', UserObject.SHARED_FOLDERS]) || {};
var steps = Object.keys(shared).length;
var i = 1;
var w = waitFor();
progress = progress || function () {};
nThen(function (waitFor) {
Object.keys(shared).forEach(function (id) {
var sf = shared[id];
SF.load({
network: network,
store: store,
isNewChannel: Store.isNewChannel
}, id, sf, waitFor(function () {
progress({
progress: i,
max: steps
});
i++;
}));
});
}).nThen(function () {
setTimeout(w);
});
};
return SF;
});