Merge branch 'staging' into soon
ansuz
5 years ago
commit
bd163e65f3
File diff suppressed because it is too large
Load Diff
@ -0,0 +1,48 @@
|
|||||||
|
/* jshint esversion: 6 */
|
||||||
|
const WebSocketServer = require('ws').Server;
|
||||||
|
const NetfluxSrv = require('chainpad-server');
|
||||||
|
|
||||||
|
module.exports.create = function (config) {
|
||||||
|
// asynchronously create a historyKeeper and RPC together
|
||||||
|
require('./historyKeeper.js').create(config, function (err, historyKeeper) {
|
||||||
|
if (err) { throw err; }
|
||||||
|
|
||||||
|
var log = config.log;
|
||||||
|
|
||||||
|
// spawn ws server and attach netflux event handlers
|
||||||
|
NetfluxSrv.create(new WebSocketServer({ server: config.httpServer}))
|
||||||
|
.on('channelClose', historyKeeper.channelClose)
|
||||||
|
.on('channelMessage', historyKeeper.channelMessage)
|
||||||
|
.on('channelOpen', historyKeeper.channelOpen)
|
||||||
|
.on('sessionClose', function (userId, reason) {
|
||||||
|
if (['BAD_MESSAGE', 'SOCKET_ERROR', 'SEND_MESSAGE_FAIL_2'].indexOf(reason) !== -1) {
|
||||||
|
if (reason && reason.code === 'ECONNRESET') { return; }
|
||||||
|
return void log.error('SESSION_CLOSE_WITH_ERROR', {
|
||||||
|
userId: userId,
|
||||||
|
reason: reason,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
if (reason && reason === 'SOCKET_CLOSED') { return; }
|
||||||
|
log.verbose('SESSION_CLOSE_ROUTINE', {
|
||||||
|
userId: userId,
|
||||||
|
reason: reason,
|
||||||
|
});
|
||||||
|
})
|
||||||
|
.on('error', function (error, label, info) {
|
||||||
|
if (!error) { return; }
|
||||||
|
/* labels:
|
||||||
|
SEND_MESSAGE_FAIL, SEND_MESSAGE_FAIL_2, FAIL_TO_DISCONNECT,
|
||||||
|
FAIL_TO_TERMINATE, HANDLE_CHANNEL_LEAVE, NETFLUX_BAD_MESSAGE,
|
||||||
|
NETFLUX_WEBSOCKET_ERROR
|
||||||
|
*/
|
||||||
|
log.error(label, {
|
||||||
|
code: error.code,
|
||||||
|
message: error.message,
|
||||||
|
stack: error.stack,
|
||||||
|
info: info,
|
||||||
|
});
|
||||||
|
})
|
||||||
|
.register(historyKeeper.id, historyKeeper.directMessage);
|
||||||
|
});
|
||||||
|
};
|
||||||
@ -0,0 +1,172 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
/* globals Buffer*/
|
||||||
|
var Block = module.exports;
|
||||||
|
|
||||||
|
const Fs = require("fs");
|
||||||
|
const Fse = require("fs-extra");
|
||||||
|
const Path = require("path");
|
||||||
|
const Nacl = require("tweetnacl/nacl-fast");
|
||||||
|
const nThen = require("nthen");
|
||||||
|
|
||||||
|
const Util = require("../common-util");
|
||||||
|
|
||||||
|
/*
|
||||||
|
We assume that the server is secured against MitM attacks
|
||||||
|
via HTTPS, and that malicious actors do not have code execution
|
||||||
|
capabilities. If they do, we have much more serious problems.
|
||||||
|
|
||||||
|
The capability to replay a block write or remove results in either
|
||||||
|
a denial of service for the user whose block was removed, or in the
|
||||||
|
case of a write, a rollback to an earlier password.
|
||||||
|
|
||||||
|
Since block modification is destructive, this can result in loss
|
||||||
|
of access to the user's drive.
|
||||||
|
|
||||||
|
So long as the detached signature is never observed by a malicious
|
||||||
|
party, and the server discards it after proof of knowledge, replays
|
||||||
|
are not possible. However, this precludes verification of the signature
|
||||||
|
at a later time.
|
||||||
|
|
||||||
|
Despite this, an integrity check is still possible by the original
|
||||||
|
author of the block, since we assume that the block will have been
|
||||||
|
encrypted with xsalsa20-poly1305 which is authenticated.
|
||||||
|
*/
|
||||||
|
var validateLoginBlock = function (Env, publicKey, signature, block, cb) { // FIXME BLOCKS
|
||||||
|
// convert the public key to a Uint8Array and validate it
|
||||||
|
if (typeof(publicKey) !== 'string') { return void cb('E_INVALID_KEY'); }
|
||||||
|
|
||||||
|
var u8_public_key;
|
||||||
|
try {
|
||||||
|
u8_public_key = Nacl.util.decodeBase64(publicKey);
|
||||||
|
} catch (e) {
|
||||||
|
return void cb('E_INVALID_KEY');
|
||||||
|
}
|
||||||
|
|
||||||
|
var u8_signature;
|
||||||
|
try {
|
||||||
|
u8_signature = Nacl.util.decodeBase64(signature);
|
||||||
|
} catch (e) {
|
||||||
|
Env.Log.error('INVALID_BLOCK_SIGNATURE', e);
|
||||||
|
return void cb('E_INVALID_SIGNATURE');
|
||||||
|
}
|
||||||
|
|
||||||
|
// convert the block to a Uint8Array
|
||||||
|
var u8_block;
|
||||||
|
try {
|
||||||
|
u8_block = Nacl.util.decodeBase64(block);
|
||||||
|
} catch (e) {
|
||||||
|
return void cb('E_INVALID_BLOCK');
|
||||||
|
}
|
||||||
|
|
||||||
|
// take its hash
|
||||||
|
var hash = Nacl.hash(u8_block);
|
||||||
|
|
||||||
|
// validate the signature against the hash of the content
|
||||||
|
var verified = Nacl.sign.detached.verify(hash, u8_signature, u8_public_key);
|
||||||
|
|
||||||
|
// existing authentication ensures that users cannot replay old blocks
|
||||||
|
|
||||||
|
// call back with (err) if unsuccessful
|
||||||
|
if (!verified) { return void cb("E_COULD_NOT_VERIFY"); }
|
||||||
|
|
||||||
|
return void cb(null, u8_block);
|
||||||
|
};
|
||||||
|
|
||||||
|
var createLoginBlockPath = function (Env, publicKey) { // FIXME BLOCKS
|
||||||
|
// prepare publicKey to be used as a file name
|
||||||
|
var safeKey = Util.escapeKeyCharacters(publicKey);
|
||||||
|
|
||||||
|
// validate safeKey
|
||||||
|
if (typeof(safeKey) !== 'string') {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// derive the full path
|
||||||
|
// /home/cryptpad/cryptpad/block/fg/fg32kefksjdgjkewrjksdfksjdfsdfskdjfsfd
|
||||||
|
return Path.join(Env.paths.block, safeKey.slice(0, 2), safeKey);
|
||||||
|
};
|
||||||
|
|
||||||
|
Block.writeLoginBlock = function (Env, safeKey, msg, cb) { // FIXME BLOCKS
|
||||||
|
//console.log(msg);
|
||||||
|
var publicKey = msg[0];
|
||||||
|
var signature = msg[1];
|
||||||
|
var block = msg[2];
|
||||||
|
|
||||||
|
validateLoginBlock(Env, publicKey, signature, block, function (e, validatedBlock) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
if (!(validatedBlock instanceof Uint8Array)) { return void cb('E_INVALID_BLOCK'); }
|
||||||
|
|
||||||
|
// derive the filepath
|
||||||
|
var path = createLoginBlockPath(Env, publicKey);
|
||||||
|
|
||||||
|
// make sure the path is valid
|
||||||
|
if (typeof(path) !== 'string') {
|
||||||
|
return void cb('E_INVALID_BLOCK_PATH');
|
||||||
|
}
|
||||||
|
|
||||||
|
var parsed = Path.parse(path);
|
||||||
|
if (!parsed || typeof(parsed.dir) !== 'string') {
|
||||||
|
return void cb("E_INVALID_BLOCK_PATH_2");
|
||||||
|
}
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
// make sure the path to the file exists
|
||||||
|
Fse.mkdirp(parsed.dir, w(function (e) {
|
||||||
|
if (e) {
|
||||||
|
w.abort();
|
||||||
|
cb(e);
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
// actually write the block
|
||||||
|
|
||||||
|
// flow is dumb and I need to guard against this which will never happen
|
||||||
|
/*:: if (typeof(validatedBlock) === 'undefined') { throw new Error('should never happen'); } */
|
||||||
|
/*:: if (typeof(path) === 'undefined') { throw new Error('should never happen'); } */
|
||||||
|
Fs.writeFile(path, Buffer.from(validatedBlock), { encoding: "binary", }, function (err) {
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
cb();
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
When users write a block, they upload the block, and provide
|
||||||
|
a signature proving that they deserve to be able to write to
|
||||||
|
the location determined by the public key.
|
||||||
|
|
||||||
|
When removing a block, there is nothing to upload, but we need
|
||||||
|
to sign something. Since the signature is considered sensitive
|
||||||
|
information, we can just sign some constant and use that as proof.
|
||||||
|
|
||||||
|
*/
|
||||||
|
Block.removeLoginBlock = function (Env, safeKey, msg, cb) { // FIXME BLOCKS
|
||||||
|
var publicKey = msg[0];
|
||||||
|
var signature = msg[1];
|
||||||
|
var block = Nacl.util.decodeUTF8('DELETE_BLOCK'); // clients and the server will have to agree on this constant
|
||||||
|
|
||||||
|
validateLoginBlock(Env, publicKey, signature, block, function (e /*::, validatedBlock */) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
// derive the filepath
|
||||||
|
var path = createLoginBlockPath(Env, publicKey);
|
||||||
|
|
||||||
|
// make sure the path is valid
|
||||||
|
if (typeof(path) !== 'string') {
|
||||||
|
return void cb('E_INVALID_BLOCK_PATH');
|
||||||
|
}
|
||||||
|
|
||||||
|
// FIXME COLDSTORAGE
|
||||||
|
Fs.unlink(path, function (err) {
|
||||||
|
Env.Log.info('DELETION_BLOCK_BY_OWNER_RPC', {
|
||||||
|
publicKey: publicKey,
|
||||||
|
path: path,
|
||||||
|
status: err? String(err): 'SUCCESS',
|
||||||
|
});
|
||||||
|
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
cb();
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
@ -0,0 +1,274 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
const Channel = module.exports;
|
||||||
|
|
||||||
|
const Util = require("../common-util");
|
||||||
|
const nThen = require("nthen");
|
||||||
|
const Core = require("./core");
|
||||||
|
const Metadata = require("./metadata");
|
||||||
|
|
||||||
|
Channel.clearOwnedChannel = function (Env, safeKey, channelId, cb, Server) {
|
||||||
|
if (typeof(channelId) !== 'string' || channelId.length !== 32) {
|
||||||
|
return cb('INVALID_ARGUMENTS');
|
||||||
|
}
|
||||||
|
var unsafeKey = Util.unescapeKeyCharacters(safeKey);
|
||||||
|
|
||||||
|
Metadata.getMetadata(Env, channelId, function (err, metadata) {
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
if (!Core.hasOwners(metadata)) { return void cb('E_NO_OWNERS'); }
|
||||||
|
// Confirm that the channel is owned by the user in question
|
||||||
|
if (!Core.isOwner(metadata, unsafeKey)) {
|
||||||
|
return void cb('INSUFFICIENT_PERMISSIONS');
|
||||||
|
}
|
||||||
|
return void Env.msgStore.clearChannel(channelId, function (e) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
cb();
|
||||||
|
|
||||||
|
const channel_cache = Env.historyKeeper.channel_cache;
|
||||||
|
|
||||||
|
const clear = function () {
|
||||||
|
// delete the channel cache because it will have been invalidated
|
||||||
|
delete channel_cache[channelId];
|
||||||
|
};
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
Server.getChannelUserList(channelId).forEach(function (userId) {
|
||||||
|
Server.send(userId, [
|
||||||
|
0,
|
||||||
|
Env.historyKeeper.id,
|
||||||
|
'MSG',
|
||||||
|
userId,
|
||||||
|
JSON.stringify({
|
||||||
|
error: 'ECLEARED',
|
||||||
|
channel: channelId
|
||||||
|
})
|
||||||
|
], w());
|
||||||
|
});
|
||||||
|
}).nThen(function () {
|
||||||
|
clear();
|
||||||
|
}).orTimeout(function () {
|
||||||
|
Env.Log.warn("ON_CHANNEL_CLEARED_TIMEOUT", channelId);
|
||||||
|
clear();
|
||||||
|
}, 30000);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Channel.removeOwnedChannel = function (Env, safeKey, channelId, cb, Server) {
|
||||||
|
if (typeof(channelId) !== 'string' || !Core.isValidId(channelId)) {
|
||||||
|
return cb('INVALID_ARGUMENTS');
|
||||||
|
}
|
||||||
|
var unsafeKey = Util.unescapeKeyCharacters(safeKey);
|
||||||
|
|
||||||
|
if (Env.blobStore.isFileId(channelId)) {
|
||||||
|
var blobId = channelId;
|
||||||
|
|
||||||
|
return void nThen(function (w) {
|
||||||
|
// check if you have permissions
|
||||||
|
Env.blobStore.isOwnedBy(safeKey, blobId, w(function (err, owned) {
|
||||||
|
if (err || !owned) {
|
||||||
|
w.abort();
|
||||||
|
return void cb("INSUFFICIENT_PERMISSIONS");
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
}).nThen(function (w) {
|
||||||
|
// remove the blob
|
||||||
|
return void Env.blobStore.archive.blob(blobId, w(function (err) {
|
||||||
|
Env.Log.info('ARCHIVAL_OWNED_FILE_BY_OWNER_RPC', {
|
||||||
|
safeKey: safeKey,
|
||||||
|
blobId: blobId,
|
||||||
|
status: err? String(err): 'SUCCESS',
|
||||||
|
});
|
||||||
|
if (err) {
|
||||||
|
w.abort();
|
||||||
|
return void cb(err);
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
// archive the proof
|
||||||
|
return void Env.blobStore.archive.proof(safeKey, blobId, function (err) {
|
||||||
|
Env.Log.info("ARCHIVAL_PROOF_REMOVAL_BY_OWNER_RPC", {
|
||||||
|
safeKey: safeKey,
|
||||||
|
blobId: blobId,
|
||||||
|
status: err? String(err): 'SUCCESS',
|
||||||
|
});
|
||||||
|
if (err) {
|
||||||
|
return void cb("E_PROOF_REMOVAL");
|
||||||
|
}
|
||||||
|
cb(void 0, 'OK');
|
||||||
|
});
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
Metadata.getMetadata(Env, channelId, function (err, metadata) {
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
if (!Core.hasOwners(metadata)) { return void cb('E_NO_OWNERS'); }
|
||||||
|
if (!Core.isOwner(metadata, unsafeKey)) {
|
||||||
|
return void cb('INSUFFICIENT_PERMISSIONS');
|
||||||
|
}
|
||||||
|
// temporarily archive the file
|
||||||
|
return void Env.msgStore.archiveChannel(channelId, function (e) {
|
||||||
|
Env.Log.info('ARCHIVAL_CHANNEL_BY_OWNER_RPC', {
|
||||||
|
unsafeKey: unsafeKey,
|
||||||
|
channelId: channelId,
|
||||||
|
status: e? String(e): 'SUCCESS',
|
||||||
|
});
|
||||||
|
if (e) {
|
||||||
|
return void cb(e);
|
||||||
|
}
|
||||||
|
cb(void 0, 'OK');
|
||||||
|
|
||||||
|
const channel_cache = Env.historyKeeper.channel_cache;
|
||||||
|
const metadata_cache = Env.historyKeeper.metadata_cache;
|
||||||
|
|
||||||
|
const clear = function () {
|
||||||
|
delete channel_cache[channelId];
|
||||||
|
Server.clearChannel(channelId);
|
||||||
|
delete metadata_cache[channelId];
|
||||||
|
};
|
||||||
|
|
||||||
|
// an owner of a channel deleted it
|
||||||
|
nThen(function (w) {
|
||||||
|
// close the channel in the store
|
||||||
|
Env.msgStore.closeChannel(channelId, w());
|
||||||
|
}).nThen(function (w) {
|
||||||
|
// Server.channelBroadcast would be better
|
||||||
|
// but we can't trust it to track even one callback,
|
||||||
|
// let alone many in parallel.
|
||||||
|
// so we simulate it on this side to avoid race conditions
|
||||||
|
Server.getChannelUserList(channelId).forEach(function (userId) {
|
||||||
|
Server.send(userId, [
|
||||||
|
0,
|
||||||
|
Env.historyKeeper.id,
|
||||||
|
"MSG",
|
||||||
|
userId,
|
||||||
|
JSON.stringify({
|
||||||
|
error: 'EDELETED',
|
||||||
|
channel: channelId,
|
||||||
|
})
|
||||||
|
], w());
|
||||||
|
});
|
||||||
|
}).nThen(function () {
|
||||||
|
// clear the channel's data from memory
|
||||||
|
// once you've sent everyone a notice that the channel has been deleted
|
||||||
|
clear();
|
||||||
|
}).orTimeout(function () {
|
||||||
|
Env.Log.warn('ON_CHANNEL_DELETED_TIMEOUT', channelId);
|
||||||
|
clear();
|
||||||
|
}, 30000);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Channel.trimHistory = function (Env, safeKey, data, cb) {
|
||||||
|
if (!(data && typeof(data.channel) === 'string' && typeof(data.hash) === 'string' && data.hash.length === 64)) {
|
||||||
|
return void cb('INVALID_ARGS');
|
||||||
|
}
|
||||||
|
|
||||||
|
var channelId = data.channel;
|
||||||
|
var unsafeKey = Util.unescapeKeyCharacters(safeKey);
|
||||||
|
var hash = data.hash;
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
Metadata.getMetadata(Env, channelId, w(function (err, metadata) {
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
if (!Core.hasOwners(metadata)) {
|
||||||
|
w.abort();
|
||||||
|
return void cb('E_NO_OWNERS');
|
||||||
|
}
|
||||||
|
if (!Core.isOwner(metadata, unsafeKey)) {
|
||||||
|
w.abort();
|
||||||
|
return void cb("INSUFFICIENT_PERMISSIONS");
|
||||||
|
}
|
||||||
|
// else fall through to the next block
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
Env.msgStore.trimChannel(channelId, hash, function (err) {
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
// clear historyKeeper's cache for this channel
|
||||||
|
Env.historyKeeper.channelClose(channelId);
|
||||||
|
cb(void 0, 'OK');
|
||||||
|
delete Env.historyKeeper.channel_cache[channelId];
|
||||||
|
delete Env.historyKeeper.metadata_cache[channelId];
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var ARRAY_LINE = /^\[/;
|
||||||
|
|
||||||
|
/* Files can contain metadata but not content
|
||||||
|
call back with true if the channel log has no content other than metadata
|
||||||
|
otherwise false
|
||||||
|
*/
|
||||||
|
Channel.isNewChannel = function (Env, channel, cb) {
|
||||||
|
if (!Core.isValidId(channel)) { return void cb('INVALID_CHAN'); }
|
||||||
|
if (channel.length !== 32) { return void cb('INVALID_CHAN'); }
|
||||||
|
|
||||||
|
var done = false;
|
||||||
|
Env.msgStore.getMessages(channel, function (msg) {
|
||||||
|
if (done) { return; }
|
||||||
|
try {
|
||||||
|
if (typeof(msg) === 'string' && ARRAY_LINE.test(msg)) {
|
||||||
|
done = true;
|
||||||
|
return void cb(void 0, false);
|
||||||
|
}
|
||||||
|
} catch (e) {
|
||||||
|
Env.WARN('invalid message read from store', e);
|
||||||
|
}
|
||||||
|
}, function () {
|
||||||
|
if (done) { return; }
|
||||||
|
// no more messages...
|
||||||
|
cb(void 0, true);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* writePrivateMessage
|
||||||
|
allows users to anonymously send a message to the channel
|
||||||
|
prevents their netflux-id from being stored in history
|
||||||
|
and from being broadcast to anyone that might currently be in the channel
|
||||||
|
|
||||||
|
Otherwise behaves the same as sending to a channel
|
||||||
|
*/
|
||||||
|
Channel.writePrivateMessage = function (Env, args, cb, Server) {
|
||||||
|
var channelId = args[0];
|
||||||
|
var msg = args[1];
|
||||||
|
|
||||||
|
// don't bother handling empty messages
|
||||||
|
if (!msg) { return void cb("INVALID_MESSAGE"); }
|
||||||
|
|
||||||
|
// don't support anything except regular channels
|
||||||
|
if (!Core.isValidId(channelId) || channelId.length !== 32) {
|
||||||
|
return void cb("INVALID_CHAN");
|
||||||
|
}
|
||||||
|
|
||||||
|
// We expect a modern netflux-websocket-server instance
|
||||||
|
// if this API isn't here everything will fall apart anyway
|
||||||
|
if (!(Server && typeof(Server.send) === 'function')) {
|
||||||
|
return void cb("NOT_IMPLEMENTED");
|
||||||
|
}
|
||||||
|
|
||||||
|
// historyKeeper expects something with an 'id' attribute
|
||||||
|
// it will fail unless you provide it, but it doesn't need anything else
|
||||||
|
var channelStruct = {
|
||||||
|
id: channelId,
|
||||||
|
};
|
||||||
|
|
||||||
|
// construct a message to store and broadcast
|
||||||
|
var fullMessage = [
|
||||||
|
0, // idk
|
||||||
|
null, // normally the netflux id, null isn't rejected, and it distinguishes messages written in this way
|
||||||
|
"MSG", // indicate that this is a MSG
|
||||||
|
channelId, // channel id
|
||||||
|
msg // the actual message content. Generally a string
|
||||||
|
];
|
||||||
|
|
||||||
|
// historyKeeper already knows how to handle metadata and message validation, so we just pass it off here
|
||||||
|
// if the message isn't valid it won't be stored.
|
||||||
|
Env.historyKeeper.channelMessage(Server, channelStruct, fullMessage);
|
||||||
|
|
||||||
|
Server.getChannelUserList(channelId).forEach(function (userId) {
|
||||||
|
Server.send(userId, fullMessage);
|
||||||
|
});
|
||||||
|
|
||||||
|
cb();
|
||||||
|
};
|
||||||
|
|
||||||
@ -0,0 +1,190 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
/* globals process */
|
||||||
|
const Core = module.exports;
|
||||||
|
const Util = require("../common-util");
|
||||||
|
const escapeKeyCharacters = Util.escapeKeyCharacters;
|
||||||
|
|
||||||
|
/* Use Nacl for checking signatures of messages */
|
||||||
|
const Nacl = require("tweetnacl/nacl-fast");
|
||||||
|
|
||||||
|
|
||||||
|
Core.DEFAULT_LIMIT = 50 * 1024 * 1024;
|
||||||
|
Core.SESSION_EXPIRATION_TIME = 60 * 1000;
|
||||||
|
|
||||||
|
Core.isValidId = function (chan) {
|
||||||
|
return chan && chan.length && /^[a-zA-Z0-9=+-]*$/.test(chan) &&
|
||||||
|
[32, 48].indexOf(chan.length) > -1;
|
||||||
|
};
|
||||||
|
|
||||||
|
var makeToken = Core.makeToken = function () {
|
||||||
|
return Number(Math.floor(Math.random() * Number.MAX_SAFE_INTEGER))
|
||||||
|
.toString(16);
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.makeCookie = function (token) {
|
||||||
|
var time = (+new Date());
|
||||||
|
time -= time % 5000;
|
||||||
|
|
||||||
|
return [
|
||||||
|
time,
|
||||||
|
process.pid,
|
||||||
|
token
|
||||||
|
];
|
||||||
|
};
|
||||||
|
|
||||||
|
var parseCookie = function (cookie) {
|
||||||
|
if (!(cookie && cookie.split)) { return null; }
|
||||||
|
|
||||||
|
var parts = cookie.split('|');
|
||||||
|
if (parts.length !== 3) { return null; }
|
||||||
|
|
||||||
|
var c = {};
|
||||||
|
c.time = new Date(parts[0]);
|
||||||
|
c.pid = Number(parts[1]);
|
||||||
|
c.seq = parts[2];
|
||||||
|
return c;
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.getSession = function (Sessions, key) {
|
||||||
|
var safeKey = escapeKeyCharacters(key);
|
||||||
|
if (Sessions[safeKey]) {
|
||||||
|
Sessions[safeKey].atime = +new Date();
|
||||||
|
return Sessions[safeKey];
|
||||||
|
}
|
||||||
|
var user = Sessions[safeKey] = {};
|
||||||
|
user.atime = +new Date();
|
||||||
|
user.tokens = [
|
||||||
|
makeToken()
|
||||||
|
];
|
||||||
|
return user;
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.expireSession = function (Sessions, safeKey) {
|
||||||
|
var session = Sessions[safeKey];
|
||||||
|
if (!session) { return; }
|
||||||
|
if (session.blobstage) {
|
||||||
|
session.blobstage.close();
|
||||||
|
}
|
||||||
|
delete Sessions[safeKey];
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.expireSessionAsync = function (Env, safeKey, cb) {
|
||||||
|
setTimeout(function () {
|
||||||
|
Core.expireSession(Env.Sessions, safeKey);
|
||||||
|
cb(void 0, 'OK');
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var isTooOld = function (time, now) {
|
||||||
|
return (now - time) > 300000;
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.expireSessions = function (Sessions) {
|
||||||
|
var now = +new Date();
|
||||||
|
Object.keys(Sessions).forEach(function (safeKey) {
|
||||||
|
var session = Sessions[safeKey];
|
||||||
|
if (session && isTooOld(session.atime, now)) {
|
||||||
|
Core.expireSession(Sessions, safeKey);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var addTokenForKey = function (Sessions, publicKey, token) {
|
||||||
|
if (!Sessions[publicKey]) { throw new Error('undefined user'); }
|
||||||
|
|
||||||
|
var user = Core.getSession(Sessions, publicKey);
|
||||||
|
user.tokens.push(token);
|
||||||
|
user.atime = +new Date();
|
||||||
|
if (user.tokens.length > 2) { user.tokens.shift(); }
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.isValidCookie = function (Sessions, publicKey, cookie) {
|
||||||
|
var parsed = parseCookie(cookie);
|
||||||
|
if (!parsed) { return false; }
|
||||||
|
|
||||||
|
var now = +new Date();
|
||||||
|
|
||||||
|
if (!parsed.time) { return false; }
|
||||||
|
if (isTooOld(parsed.time, now)) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// different process. try harder
|
||||||
|
if (process.pid !== parsed.pid) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
var user = Core.getSession(Sessions, publicKey);
|
||||||
|
if (!user) { return false; }
|
||||||
|
|
||||||
|
var idx = user.tokens.indexOf(parsed.seq);
|
||||||
|
if (idx === -1) { return false; }
|
||||||
|
|
||||||
|
if (idx > 0) {
|
||||||
|
// make a new token
|
||||||
|
addTokenForKey(Sessions, publicKey, Core.makeToken());
|
||||||
|
}
|
||||||
|
|
||||||
|
return true;
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.checkSignature = function (Env, signedMsg, signature, publicKey) {
|
||||||
|
if (!(signedMsg && publicKey)) { return false; }
|
||||||
|
|
||||||
|
var signedBuffer;
|
||||||
|
var pubBuffer;
|
||||||
|
var signatureBuffer;
|
||||||
|
|
||||||
|
try {
|
||||||
|
signedBuffer = Nacl.util.decodeUTF8(signedMsg);
|
||||||
|
} catch (e) {
|
||||||
|
Env.Log.error('INVALID_SIGNED_BUFFER', signedMsg);
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
pubBuffer = Nacl.util.decodeBase64(publicKey);
|
||||||
|
} catch (e) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
try {
|
||||||
|
signatureBuffer = Nacl.util.decodeBase64(signature);
|
||||||
|
} catch (e) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (pubBuffer.length !== 32) {
|
||||||
|
Env.Log.error('PUBLIC_KEY_LENGTH', publicKey);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (signatureBuffer.length !== 64) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
return Nacl.sign.detached.verify(signedBuffer, signatureBuffer, pubBuffer);
|
||||||
|
};
|
||||||
|
|
||||||
|
// E_NO_OWNERS
|
||||||
|
Core.hasOwners = function (metadata) {
|
||||||
|
return Boolean(metadata && Array.isArray(metadata.owners));
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.hasPendingOwners = function (metadata) {
|
||||||
|
return Boolean(metadata && Array.isArray(metadata.pending_owners));
|
||||||
|
};
|
||||||
|
|
||||||
|
// INSUFFICIENT_PERMISSIONS
|
||||||
|
Core.isOwner = function (metadata, unsafeKey) {
|
||||||
|
return metadata.owners.indexOf(unsafeKey) !== -1;
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.isPendingOwner = function (metadata, unsafeKey) {
|
||||||
|
return metadata.pending_owners.indexOf(unsafeKey) !== -1;
|
||||||
|
};
|
||||||
|
|
||||||
|
Core.haveACookie = function (Env, safeKey, cb) {
|
||||||
|
cb();
|
||||||
|
};
|
||||||
|
|
||||||
@ -0,0 +1,128 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
const Data = module.exports;
|
||||||
|
|
||||||
|
const Meta = require("../metadata");
|
||||||
|
const BatchRead = require("../batch-read");
|
||||||
|
const WriteQueue = require("../write-queue");
|
||||||
|
const Core = require("./core");
|
||||||
|
const Util = require("../common-util");
|
||||||
|
|
||||||
|
const batchMetadata = BatchRead("GET_METADATA");
|
||||||
|
Data.getMetadata = function (Env, channel, cb/* , Server */) {
|
||||||
|
if (!Core.isValidId(channel)) { return void cb('INVALID_CHAN'); }
|
||||||
|
if (channel.length !== 32) { return cb("INVALID_CHAN_LENGTH"); }
|
||||||
|
|
||||||
|
// FIXME get metadata from the server cache if it is available
|
||||||
|
batchMetadata(channel, cb, function (done) {
|
||||||
|
var ref = {};
|
||||||
|
var lineHandler = Meta.createLineHandler(ref, Env.Log.error);
|
||||||
|
|
||||||
|
return void Env.msgStore.readChannelMetadata(channel, lineHandler, function (err) {
|
||||||
|
if (err) {
|
||||||
|
// stream errors?
|
||||||
|
return void done(err);
|
||||||
|
}
|
||||||
|
done(void 0, ref.meta);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* setMetadata
|
||||||
|
- write a new line to the metadata log if a valid command is provided
|
||||||
|
- data is an object: {
|
||||||
|
channel: channelId,
|
||||||
|
command: metadataCommand (string),
|
||||||
|
value: value
|
||||||
|
}
|
||||||
|
*/
|
||||||
|
var queueMetadata = WriteQueue();
|
||||||
|
Data.setMetadata = function (Env, safeKey, data, cb, Server) {
|
||||||
|
var unsafeKey = Util.unescapeKeyCharacters(safeKey);
|
||||||
|
|
||||||
|
var channel = data.channel;
|
||||||
|
var command = data.command;
|
||||||
|
if (!channel || !Core.isValidId(channel)) { return void cb ('INVALID_CHAN'); }
|
||||||
|
if (!command || typeof (command) !== 'string') { return void cb ('INVALID_COMMAND'); }
|
||||||
|
if (Meta.commands.indexOf(command) === -1) { return void('UNSUPPORTED_COMMAND'); }
|
||||||
|
|
||||||
|
queueMetadata(channel, function (next) {
|
||||||
|
Data.getMetadata(Env, channel, function (err, metadata) {
|
||||||
|
if (err) {
|
||||||
|
cb(err);
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
if (!Core.hasOwners(metadata)) {
|
||||||
|
cb('E_NO_OWNERS');
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
|
||||||
|
// if you are a pending owner and not an owner
|
||||||
|
// you can either ADD_OWNERS, or RM_PENDING_OWNERS
|
||||||
|
// and you should only be able to add yourself as an owner
|
||||||
|
// everything else should be rejected
|
||||||
|
// else if you are not an owner
|
||||||
|
// you should be rejected
|
||||||
|
// else write the command
|
||||||
|
|
||||||
|
// Confirm that the channel is owned by the user in question
|
||||||
|
// or the user is accepting a pending ownership offer
|
||||||
|
if (Core.hasPendingOwners(metadata) &&
|
||||||
|
Core.isPendingOwner(metadata, unsafeKey) &&
|
||||||
|
!Core.isOwner(metadata, unsafeKey)) {
|
||||||
|
|
||||||
|
// If you are a pending owner, make sure you can only add yourelf as an owner
|
||||||
|
if ((command !== 'ADD_OWNERS' && command !== 'RM_PENDING_OWNERS')
|
||||||
|
|| !Array.isArray(data.value)
|
||||||
|
|| data.value.length !== 1
|
||||||
|
|| data.value[0] !== unsafeKey) {
|
||||||
|
cb('INSUFFICIENT_PERMISSIONS');
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
// FIXME wacky fallthrough is hard to read
|
||||||
|
// we could pass this off to a writeMetadataCommand function
|
||||||
|
// and make the flow easier to follow
|
||||||
|
} else if (!Core.isOwner(metadata, unsafeKey)) {
|
||||||
|
cb('INSUFFICIENT_PERMISSIONS');
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
|
||||||
|
// Add the new metadata line
|
||||||
|
var line = [command, data.value, +new Date()];
|
||||||
|
var changed = false;
|
||||||
|
try {
|
||||||
|
changed = Meta.handleCommand(metadata, line);
|
||||||
|
} catch (e) {
|
||||||
|
cb(e);
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
|
||||||
|
// if your command is valid but it didn't result in any change to the metadata,
|
||||||
|
// call back now and don't write any "useless" line to the log
|
||||||
|
if (!changed) {
|
||||||
|
cb(void 0, metadata);
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
Env.msgStore.writeMetadata(channel, JSON.stringify(line), function (e) {
|
||||||
|
if (e) {
|
||||||
|
cb(e);
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
|
||||||
|
cb(void 0, metadata);
|
||||||
|
next();
|
||||||
|
|
||||||
|
const metadata_cache = Env.historyKeeper.metadata_cache;
|
||||||
|
const channel_cache = Env.historyKeeper.channel_cache;
|
||||||
|
|
||||||
|
metadata_cache[channel] = metadata;
|
||||||
|
|
||||||
|
var index = Util.find(channel_cache, [channel, 'index']);
|
||||||
|
if (index && typeof(index) === 'object') { index.metadata = metadata; }
|
||||||
|
|
||||||
|
Server.channelBroadcast(channel, JSON.stringify(metadata), Env.historyKeeper.id);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,464 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
const Core = require("./core");
|
||||||
|
|
||||||
|
const BatchRead = require("../batch-read");
|
||||||
|
const Pins = require("../pins");
|
||||||
|
|
||||||
|
const Pinning = module.exports;
|
||||||
|
const Nacl = require("tweetnacl/nacl-fast");
|
||||||
|
const Util = require("../common-util");
|
||||||
|
const nThen = require("nthen");
|
||||||
|
const Saferphore = require("saferphore");
|
||||||
|
const Pinned = require('../../scripts/pinned');
|
||||||
|
|
||||||
|
//const escapeKeyCharacters = Util.escapeKeyCharacters;
|
||||||
|
const unescapeKeyCharacters = Util.unescapeKeyCharacters;
|
||||||
|
|
||||||
|
var sumChannelSizes = function (sizes) {
|
||||||
|
return Object.keys(sizes).map(function (id) { return sizes[id]; })
|
||||||
|
.filter(function (x) {
|
||||||
|
// only allow positive numbers
|
||||||
|
return !(typeof(x) !== 'number' || x <= 0);
|
||||||
|
})
|
||||||
|
.reduce(function (a, b) { return a + b; }, 0);
|
||||||
|
};
|
||||||
|
|
||||||
|
// FIXME it's possible for this to respond before the server has had a chance
|
||||||
|
// to fetch the limits. Maybe we should respond with an error...
|
||||||
|
// or wait until we actually know the limits before responding
|
||||||
|
var getLimit = Pinning.getLimit = function (Env, publicKey, cb) {
|
||||||
|
var unescapedKey = unescapeKeyCharacters(publicKey);
|
||||||
|
var limit = Env.limits[unescapedKey];
|
||||||
|
var defaultLimit = typeof(Env.defaultStorageLimit) === 'number'?
|
||||||
|
Env.defaultStorageLimit: Core.DEFAULT_LIMIT;
|
||||||
|
|
||||||
|
var toSend = limit && typeof(limit.limit) === "number"?
|
||||||
|
[limit.limit, limit.plan, limit.note] : [defaultLimit, '', ''];
|
||||||
|
|
||||||
|
cb(void 0, toSend);
|
||||||
|
};
|
||||||
|
|
||||||
|
var addPinned = function (
|
||||||
|
Env,
|
||||||
|
publicKey /*:string*/,
|
||||||
|
channelList /*Array<string>*/,
|
||||||
|
cb /*:()=>void*/)
|
||||||
|
{
|
||||||
|
Env.evPinnedPadsReady.reg(() => {
|
||||||
|
channelList.forEach((c) => {
|
||||||
|
const x = Env.pinnedPads[c] = Env.pinnedPads[c] || {};
|
||||||
|
x[publicKey] = 1;
|
||||||
|
});
|
||||||
|
cb();
|
||||||
|
});
|
||||||
|
};
|
||||||
|
var removePinned = function (
|
||||||
|
Env,
|
||||||
|
publicKey /*:string*/,
|
||||||
|
channelList /*Array<string>*/,
|
||||||
|
cb /*:()=>void*/)
|
||||||
|
{
|
||||||
|
Env.evPinnedPadsReady.reg(() => {
|
||||||
|
channelList.forEach((c) => {
|
||||||
|
const x = Env.pinnedPads[c];
|
||||||
|
if (!x) { return; }
|
||||||
|
delete x[publicKey];
|
||||||
|
});
|
||||||
|
cb();
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var getMultipleFileSize = function (Env, channels, cb) {
|
||||||
|
if (!Array.isArray(channels)) { return cb('INVALID_PIN_LIST'); }
|
||||||
|
if (typeof(Env.msgStore.getChannelSize) !== 'function') {
|
||||||
|
return cb('GET_CHANNEL_SIZE_UNSUPPORTED');
|
||||||
|
}
|
||||||
|
|
||||||
|
var i = channels.length;
|
||||||
|
var counts = {};
|
||||||
|
|
||||||
|
var done = function () {
|
||||||
|
i--;
|
||||||
|
if (i === 0) { return cb(void 0, counts); }
|
||||||
|
};
|
||||||
|
|
||||||
|
channels.forEach(function (channel) {
|
||||||
|
Pinning.getFileSize(Env, channel, function (e, size) {
|
||||||
|
if (e) {
|
||||||
|
// most likely error here is that a file no longer exists
|
||||||
|
// but a user still has it in their drive, and wants to know
|
||||||
|
// its size. We should find a way to inform them of this in
|
||||||
|
// the future. For now we can just tell them it has no size.
|
||||||
|
|
||||||
|
//WARN('getFileSize', e);
|
||||||
|
counts[channel] = 0;
|
||||||
|
return done();
|
||||||
|
}
|
||||||
|
counts[channel] = size;
|
||||||
|
done();
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
const batchUserPins = BatchRead("LOAD_USER_PINS");
|
||||||
|
var loadUserPins = function (Env, publicKey, cb) {
|
||||||
|
var session = Core.getSession(Env.Sessions, publicKey);
|
||||||
|
|
||||||
|
if (session.channels) {
|
||||||
|
return cb(session.channels);
|
||||||
|
}
|
||||||
|
|
||||||
|
batchUserPins(publicKey, cb, function (done) {
|
||||||
|
var ref = {};
|
||||||
|
var lineHandler = Pins.createLineHandler(ref, function (label, data) {
|
||||||
|
Env.Log.error(label, {
|
||||||
|
log: publicKey,
|
||||||
|
data: data,
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
// if channels aren't in memory. load them from disk
|
||||||
|
Env.pinStore.getMessages(publicKey, lineHandler, function () {
|
||||||
|
// no more messages
|
||||||
|
|
||||||
|
// only put this into the cache if it completes
|
||||||
|
session.channels = ref.pins;
|
||||||
|
done(ref.pins); // FIXME no error handling?
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var truthyKeys = function (O) {
|
||||||
|
return Object.keys(O).filter(function (k) {
|
||||||
|
return O[k];
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var getChannelList = Pinning.getChannelList = function (Env, publicKey, _cb) {
|
||||||
|
var cb = Util.once(Util.mkAsync(_cb));
|
||||||
|
loadUserPins(Env, publicKey, function (pins) {
|
||||||
|
cb(truthyKeys(pins));
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
const batchTotalSize = BatchRead("GET_TOTAL_SIZE");
|
||||||
|
Pinning.getTotalSize = function (Env, publicKey, cb) {
|
||||||
|
var unescapedKey = unescapeKeyCharacters(publicKey);
|
||||||
|
var limit = Env.limits[unescapedKey];
|
||||||
|
|
||||||
|
// Get a common key if multiple users share the same quota, otherwise take the public key
|
||||||
|
var batchKey = (limit && Array.isArray(limit.users)) ? limit.users.join('') : publicKey;
|
||||||
|
|
||||||
|
batchTotalSize(batchKey, cb, function (done) {
|
||||||
|
var channels = [];
|
||||||
|
var bytes = 0;
|
||||||
|
nThen(function (waitFor) {
|
||||||
|
// Get the channels list for our user account
|
||||||
|
Pinning.getChannelList(Env, publicKey, waitFor(function (_channels) {
|
||||||
|
if (!_channels) {
|
||||||
|
waitFor.abort();
|
||||||
|
return done('INVALID_PIN_LIST');
|
||||||
|
}
|
||||||
|
Array.prototype.push.apply(channels, _channels);
|
||||||
|
}));
|
||||||
|
// Get the channels list for users sharing our quota
|
||||||
|
if (limit && Array.isArray(limit.users) && limit.users.length > 1) {
|
||||||
|
limit.users.forEach(function (key) {
|
||||||
|
if (key === unescapedKey) { return; } // Don't count ourselves twice
|
||||||
|
getChannelList(Env, key, waitFor(function (_channels) {
|
||||||
|
if (!_channels) { return; } // Broken user, don't count their quota
|
||||||
|
Array.prototype.push.apply(channels, _channels);
|
||||||
|
}));
|
||||||
|
});
|
||||||
|
}
|
||||||
|
}).nThen(function (waitFor) {
|
||||||
|
// Get size of the channels
|
||||||
|
var list = []; // Contains the channels already counted in the quota to avoid duplicates
|
||||||
|
channels.forEach(function (channel) { // TODO semaphore?
|
||||||
|
if (list.indexOf(channel) !== -1) { return; }
|
||||||
|
list.push(channel);
|
||||||
|
Pinning.getFileSize(Env, channel, waitFor(function (e, size) {
|
||||||
|
if (!e) { bytes += size; }
|
||||||
|
}));
|
||||||
|
});
|
||||||
|
}).nThen(function () {
|
||||||
|
done(void 0, bytes);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Users should be able to clear their own pin log with an authenticated RPC
|
||||||
|
*/
|
||||||
|
Pinning.removePins = function (Env, safeKey, cb) {
|
||||||
|
if (typeof(Env.pinStore.removeChannel) !== 'function') {
|
||||||
|
return void cb("E_NOT_IMPLEMENTED");
|
||||||
|
}
|
||||||
|
Env.pinStore.removeChannel(safeKey, function (err) {
|
||||||
|
Env.Log.info('DELETION_PIN_BY_OWNER_RPC', {
|
||||||
|
safeKey: safeKey,
|
||||||
|
status: err? String(err): 'SUCCESS',
|
||||||
|
});
|
||||||
|
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
cb(void 0, 'OK');
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Pinning.trimPins = function (Env, safeKey, cb) {
|
||||||
|
cb("NOT_IMPLEMENTED");
|
||||||
|
};
|
||||||
|
|
||||||
|
var getFreeSpace = Pinning.getFreeSpace = function (Env, publicKey, cb) {
|
||||||
|
getLimit(Env, publicKey, function (e, limit) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
Pinning.getTotalSize(Env, publicKey, function (e, size) {
|
||||||
|
if (typeof(size) === 'undefined') { return void cb(e); }
|
||||||
|
|
||||||
|
var rem = limit[0] - size;
|
||||||
|
if (typeof(rem) !== 'number') {
|
||||||
|
return void cb('invalid_response');
|
||||||
|
}
|
||||||
|
cb(void 0, rem);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var hashChannelList = function (A) {
|
||||||
|
var uniques = [];
|
||||||
|
|
||||||
|
A.forEach(function (a) {
|
||||||
|
if (uniques.indexOf(a) === -1) { uniques.push(a); }
|
||||||
|
});
|
||||||
|
uniques.sort();
|
||||||
|
|
||||||
|
var hash = Nacl.util.encodeBase64(Nacl.hash(Nacl
|
||||||
|
.util.decodeUTF8(JSON.stringify(uniques))));
|
||||||
|
|
||||||
|
return hash;
|
||||||
|
};
|
||||||
|
|
||||||
|
var getHash = Pinning.getHash = function (Env, publicKey, cb) {
|
||||||
|
getChannelList(Env, publicKey, function (channels) {
|
||||||
|
cb(void 0, hashChannelList(channels));
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Pinning.pinChannel = function (Env, publicKey, channels, cb) {
|
||||||
|
if (!channels && channels.filter) {
|
||||||
|
return void cb('INVALID_PIN_LIST');
|
||||||
|
}
|
||||||
|
|
||||||
|
// get channel list ensures your session has a cached channel list
|
||||||
|
getChannelList(Env, publicKey, function (pinned) {
|
||||||
|
var session = Core.getSession(Env.Sessions, publicKey);
|
||||||
|
|
||||||
|
// only pin channels which are not already pinned
|
||||||
|
var toStore = channels.filter(function (channel) {
|
||||||
|
return pinned.indexOf(channel) === -1;
|
||||||
|
});
|
||||||
|
|
||||||
|
if (toStore.length === 0) {
|
||||||
|
return void getHash(Env, publicKey, cb);
|
||||||
|
}
|
||||||
|
|
||||||
|
getMultipleFileSize(Env, toStore, function (e, sizes) {
|
||||||
|
if (typeof(sizes) === 'undefined') { return void cb(e); }
|
||||||
|
var pinSize = sumChannelSizes(sizes);
|
||||||
|
|
||||||
|
getFreeSpace(Env, publicKey, function (e, free) {
|
||||||
|
if (typeof(free) === 'undefined') {
|
||||||
|
Env.WARN('getFreeSpace', e);
|
||||||
|
return void cb(e);
|
||||||
|
}
|
||||||
|
if (pinSize > free) { return void cb('E_OVER_LIMIT'); }
|
||||||
|
|
||||||
|
Env.pinStore.message(publicKey, JSON.stringify(['PIN', toStore, +new Date()]),
|
||||||
|
function (e) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
toStore.forEach(function (channel) {
|
||||||
|
session.channels[channel] = true;
|
||||||
|
});
|
||||||
|
addPinned(Env, publicKey, toStore, () => {});
|
||||||
|
getHash(Env, publicKey, cb);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Pinning.unpinChannel = function (Env, publicKey, channels, cb) {
|
||||||
|
if (!channels && channels.filter) {
|
||||||
|
// expected array
|
||||||
|
return void cb('INVALID_PIN_LIST');
|
||||||
|
}
|
||||||
|
|
||||||
|
getChannelList(Env, publicKey, function (pinned) {
|
||||||
|
var session = Core.getSession(Env.Sessions, publicKey);
|
||||||
|
|
||||||
|
// only unpin channels which are pinned
|
||||||
|
var toStore = channels.filter(function (channel) {
|
||||||
|
return pinned.indexOf(channel) !== -1;
|
||||||
|
});
|
||||||
|
|
||||||
|
if (toStore.length === 0) {
|
||||||
|
return void getHash(Env, publicKey, cb);
|
||||||
|
}
|
||||||
|
|
||||||
|
Env.pinStore.message(publicKey, JSON.stringify(['UNPIN', toStore, +new Date()]),
|
||||||
|
function (e) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
toStore.forEach(function (channel) {
|
||||||
|
delete session.channels[channel];
|
||||||
|
});
|
||||||
|
removePinned(Env, publicKey, toStore, () => {});
|
||||||
|
getHash(Env, publicKey, cb);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Pinning.resetUserPins = function (Env, publicKey, channelList, cb) {
|
||||||
|
if (!Array.isArray(channelList)) { return void cb('INVALID_PIN_LIST'); }
|
||||||
|
var session = Core.getSession(Env.Sessions, publicKey);
|
||||||
|
|
||||||
|
if (!channelList.length) {
|
||||||
|
return void getHash(Env, publicKey, function (e, hash) {
|
||||||
|
if (e) { return cb(e); }
|
||||||
|
cb(void 0, hash);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
var pins = {};
|
||||||
|
getMultipleFileSize(Env, channelList, function (e, sizes) {
|
||||||
|
if (typeof(sizes) === 'undefined') { return void cb(e); }
|
||||||
|
var pinSize = sumChannelSizes(sizes);
|
||||||
|
|
||||||
|
|
||||||
|
getLimit(Env, publicKey, function (e, limit) {
|
||||||
|
if (e) {
|
||||||
|
Env.WARN('[RESET_ERR]', e);
|
||||||
|
return void cb(e);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* we want to let people pin, even if they are over their limit,
|
||||||
|
but they should only be able to do this once.
|
||||||
|
|
||||||
|
This prevents data loss in the case that someone registers, but
|
||||||
|
does not have enough free space to pin their migrated data.
|
||||||
|
|
||||||
|
They will not be able to pin additional pads until they upgrade
|
||||||
|
or delete enough files to go back under their limit. */
|
||||||
|
if (pinSize > limit[0] && session.hasPinned) { return void(cb('E_OVER_LIMIT')); }
|
||||||
|
Env.pinStore.message(publicKey, JSON.stringify(['RESET', channelList, +new Date()]),
|
||||||
|
function (e) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
channelList.forEach(function (channel) {
|
||||||
|
pins[channel] = true;
|
||||||
|
});
|
||||||
|
|
||||||
|
var oldChannels;
|
||||||
|
if (session.channels && typeof(session.channels) === 'object') {
|
||||||
|
oldChannels = Object.keys(session.channels);
|
||||||
|
} else {
|
||||||
|
oldChannels = [];
|
||||||
|
}
|
||||||
|
removePinned(Env, publicKey, oldChannels, () => {
|
||||||
|
addPinned(Env, publicKey, channelList, ()=>{});
|
||||||
|
});
|
||||||
|
|
||||||
|
// update in-memory cache IFF the reset was allowed.
|
||||||
|
session.channels = pins;
|
||||||
|
getHash(Env, publicKey, function (e, hash) {
|
||||||
|
cb(e, hash);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Pinning.getFileSize = function (Env, channel, _cb) {
|
||||||
|
var cb = Util.once(Util.mkAsync(_cb));
|
||||||
|
if (!Core.isValidId(channel)) { return void cb('INVALID_CHAN'); }
|
||||||
|
if (channel.length === 32) {
|
||||||
|
if (typeof(Env.msgStore.getChannelSize) !== 'function') {
|
||||||
|
return cb('GET_CHANNEL_SIZE_UNSUPPORTED');
|
||||||
|
}
|
||||||
|
|
||||||
|
return void Env.msgStore.getChannelSize(channel, function (e, size /*:number*/) {
|
||||||
|
if (e) {
|
||||||
|
if (e.code === 'ENOENT') { return void cb(void 0, 0); }
|
||||||
|
return void cb(e.code);
|
||||||
|
}
|
||||||
|
cb(void 0, size);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
// 'channel' refers to a file, so you need another API
|
||||||
|
Env.blobStore.size(channel, function (e, size) {
|
||||||
|
if (typeof(size) === 'undefined') { return void cb(e); }
|
||||||
|
cb(void 0, size);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* accepts a list, and returns a sublist of channel or file ids which seem
|
||||||
|
to have been deleted from the server (file size 0)
|
||||||
|
|
||||||
|
we might consider that we should only say a file is gone if fs.stat returns
|
||||||
|
ENOENT, but for now it's simplest to just rely on getFileSize...
|
||||||
|
*/
|
||||||
|
Pinning.getDeletedPads = function (Env, channels, cb) {
|
||||||
|
if (!Array.isArray(channels)) { return cb('INVALID_LIST'); }
|
||||||
|
var L = channels.length;
|
||||||
|
|
||||||
|
var sem = Saferphore.create(10);
|
||||||
|
var absentees = [];
|
||||||
|
|
||||||
|
var job = function (channel, wait) {
|
||||||
|
return function (give) {
|
||||||
|
Pinning.getFileSize(Env, channel, wait(give(function (e, size) {
|
||||||
|
if (e) { return; }
|
||||||
|
if (size === 0) { absentees.push(channel); }
|
||||||
|
})));
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
for (var i = 0; i < L; i++) {
|
||||||
|
sem.take(job(channels[i], w));
|
||||||
|
}
|
||||||
|
}).nThen(function () {
|
||||||
|
cb(void 0, absentees);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
// inform that the
|
||||||
|
Pinning.loadChannelPins = function (Env) {
|
||||||
|
Pinned.load(function (err, data) {
|
||||||
|
if (err) {
|
||||||
|
Env.Log.error("LOAD_CHANNEL_PINS", err);
|
||||||
|
|
||||||
|
// FIXME not sure what should be done here instead
|
||||||
|
Env.pinnedPads = {};
|
||||||
|
Env.evPinnedPadsReady.fire();
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
Env.pinnedPads = data;
|
||||||
|
Env.evPinnedPadsReady.fire();
|
||||||
|
}, {
|
||||||
|
pinPath: Env.paths.pin,
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Pinning.isChannelPinned = function (Env, channel, cb) {
|
||||||
|
Env.evPinnedPadsReady.reg(() => {
|
||||||
|
if (Env.pinnedPads[channel] && Object.keys(Env.pinnedPads[channel]).length) { // FIXME 'Object.keys' here is overkill. We only need to know that it isn't empty
|
||||||
|
cb(void 0, true);
|
||||||
|
} else {
|
||||||
|
delete Env.pinnedPads[channel];
|
||||||
|
cb(void 0, false);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,107 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
/* globals Buffer*/
|
||||||
|
const Quota = module.exports;
|
||||||
|
|
||||||
|
const Util = require("../common-util");
|
||||||
|
const Package = require('../../package.json');
|
||||||
|
const Https = require("https");
|
||||||
|
|
||||||
|
Quota.applyCustomLimits = function (Env) {
|
||||||
|
var isLimit = function (o) {
|
||||||
|
var valid = o && typeof(o) === 'object' &&
|
||||||
|
typeof(o.limit) === 'number' &&
|
||||||
|
typeof(o.plan) === 'string' &&
|
||||||
|
typeof(o.note) === 'string';
|
||||||
|
return valid;
|
||||||
|
};
|
||||||
|
|
||||||
|
// read custom limits from the Environment (taken from config)
|
||||||
|
var customLimits = (function (custom) {
|
||||||
|
var limits = {};
|
||||||
|
Object.keys(custom).forEach(function (k) {
|
||||||
|
k.replace(/\/([^\/]+)$/, function (all, safeKey) {
|
||||||
|
var id = Util.unescapeKeyCharacters(safeKey || '');
|
||||||
|
limits[id] = custom[k];
|
||||||
|
return '';
|
||||||
|
});
|
||||||
|
});
|
||||||
|
return limits;
|
||||||
|
}(Env.customLimits || {}));
|
||||||
|
|
||||||
|
Object.keys(customLimits).forEach(function (k) {
|
||||||
|
if (!isLimit(customLimits[k])) { return; }
|
||||||
|
Env.limits[k] = customLimits[k];
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Quota.updateCachedLimits = function (Env, cb) {
|
||||||
|
if (Env.adminEmail === false) {
|
||||||
|
Quota.applyCustomLimits(Env);
|
||||||
|
if (Env.allowSubscriptions === false) { return; }
|
||||||
|
throw new Error("allowSubscriptions must be false if adminEmail is false");
|
||||||
|
}
|
||||||
|
|
||||||
|
var body = JSON.stringify({
|
||||||
|
domain: Env.myDomain,
|
||||||
|
subdomain: Env.mySubdomain || null,
|
||||||
|
adminEmail: Env.adminEmail,
|
||||||
|
version: Package.version
|
||||||
|
});
|
||||||
|
var options = {
|
||||||
|
host: 'accounts.cryptpad.fr',
|
||||||
|
path: '/api/getauthorized',
|
||||||
|
method: 'POST',
|
||||||
|
headers: {
|
||||||
|
"Content-Type": "application/json",
|
||||||
|
"Content-Length": Buffer.byteLength(body)
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
var req = Https.request(options, function (response) {
|
||||||
|
if (!('' + response.statusCode).match(/^2\d\d$/)) {
|
||||||
|
return void cb('SERVER ERROR ' + response.statusCode);
|
||||||
|
}
|
||||||
|
var str = '';
|
||||||
|
|
||||||
|
response.on('data', function (chunk) {
|
||||||
|
str += chunk;
|
||||||
|
});
|
||||||
|
|
||||||
|
response.on('end', function () {
|
||||||
|
try {
|
||||||
|
var json = JSON.parse(str);
|
||||||
|
Env.limits = json;
|
||||||
|
Quota.applyCustomLimits(Env);
|
||||||
|
cb(void 0);
|
||||||
|
} catch (e) {
|
||||||
|
cb(e);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
req.on('error', function (e) {
|
||||||
|
Quota.applyCustomLimits(Env);
|
||||||
|
// FIXME this is always falsey. Maybe we just suppress errors?
|
||||||
|
if (!Env.domain) { return cb(); }
|
||||||
|
cb(e);
|
||||||
|
});
|
||||||
|
|
||||||
|
req.end(body);
|
||||||
|
};
|
||||||
|
|
||||||
|
// The limits object contains storage limits for all the publicKey that have paid
|
||||||
|
// To each key is associated an object containing the 'limit' value and a 'note' explaining that limit
|
||||||
|
Quota.getUpdatedLimit = function (Env, safeKey, cb) { // FIXME BATCH?S
|
||||||
|
Quota.updateCachedLimits(Env, function (err) {
|
||||||
|
if (err) { return void cb(err); }
|
||||||
|
|
||||||
|
var limit = Env.limits[safeKey];
|
||||||
|
|
||||||
|
if (limit && typeof(limit.limit) === 'number') {
|
||||||
|
return void cb(void 0, [limit.limit, limit.plan, limit.note]);
|
||||||
|
}
|
||||||
|
|
||||||
|
return void cb(void 0, [Env.defaultStorageLimit, '', '']);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
@ -0,0 +1,57 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
const Upload = module.exports;
|
||||||
|
const Util = require("../common-util");
|
||||||
|
const Pinning = require("./pin-rpc");
|
||||||
|
const nThen = require("nthen");
|
||||||
|
const Core = require("./core");
|
||||||
|
|
||||||
|
Upload.status = function (Env, safeKey, filesize, _cb) { // FIXME FILES
|
||||||
|
var cb = Util.once(Util.mkAsync(_cb));
|
||||||
|
|
||||||
|
// validate that the provided size is actually a positive number
|
||||||
|
if (typeof(filesize) !== 'number' &&
|
||||||
|
filesize >= 0) { return void cb('E_INVALID_SIZE'); }
|
||||||
|
|
||||||
|
if (filesize >= Env.maxUploadSize) { return cb('TOO_LARGE'); }
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
var abortAndCB = Util.both(w.abort, cb);
|
||||||
|
Env.blobStore.status(safeKey, w(function (err, inProgress) {
|
||||||
|
// if there's an error something is weird
|
||||||
|
if (err) { return void abortAndCB(err); }
|
||||||
|
|
||||||
|
// we cannot upload two things at once
|
||||||
|
if (inProgress) { return void abortAndCB(void 0, true); }
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
// if yuo're here then there are no pending uploads
|
||||||
|
// check if you have space in your quota to upload something of this size
|
||||||
|
Pinning.getFreeSpace(Env, safeKey, function (e, free) {
|
||||||
|
if (e) { return void cb(e); }
|
||||||
|
if (filesize >= free) { return cb('NOT_ENOUGH_SPACE'); }
|
||||||
|
|
||||||
|
var user = Core.getSession(Env.Sessions, safeKey);
|
||||||
|
user.pendingUploadSize = filesize;
|
||||||
|
user.currentUploadSize = 0;
|
||||||
|
|
||||||
|
cb(void 0, false);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
Upload.upload = function (Env, safeKey, chunk, cb) {
|
||||||
|
Env.blobStore.upload(safeKey, chunk, cb);
|
||||||
|
};
|
||||||
|
|
||||||
|
Upload.complete = function (Env, safeKey, arg, cb) {
|
||||||
|
Env.blobStore.complete(safeKey, arg, cb);
|
||||||
|
};
|
||||||
|
|
||||||
|
Upload.cancel = function (Env, safeKey, arg, cb) {
|
||||||
|
Env.blobStore.cancel(safeKey, arg, cb);
|
||||||
|
};
|
||||||
|
|
||||||
|
Upload.complete_owned = function (Env, safeKey, arg, cb) {
|
||||||
|
Env.blobStore.completeOwned(safeKey, arg, cb);
|
||||||
|
};
|
||||||
|
|
||||||
@ -0,0 +1,97 @@
|
|||||||
|
/* jshint esversion: 6 */
|
||||||
|
|
||||||
|
const nThen = require('nthen');
|
||||||
|
const Crypto = require('crypto');
|
||||||
|
const WriteQueue = require("./write-queue");
|
||||||
|
const BatchRead = require("./batch-read");
|
||||||
|
const RPC = require("./rpc");
|
||||||
|
const HK = require("./hk-util.js");
|
||||||
|
|
||||||
|
module.exports.create = function (config, cb) {
|
||||||
|
const Log = config.log;
|
||||||
|
|
||||||
|
Log.silly('HK_LOADING', 'LOADING HISTORY_KEEPER MODULE');
|
||||||
|
|
||||||
|
// TODO populate Env with everything that you use from config
|
||||||
|
// so that you can stop passing around your raw config
|
||||||
|
// and more easily share state between historyKeeper and rpc
|
||||||
|
const Env = {
|
||||||
|
Log: Log,
|
||||||
|
// tasks
|
||||||
|
// store
|
||||||
|
id: Crypto.randomBytes(8).toString('hex'),
|
||||||
|
|
||||||
|
metadata_cache: {},
|
||||||
|
channel_cache: {},
|
||||||
|
queueStorage: WriteQueue(),
|
||||||
|
batchIndexReads: BatchRead("HK_GET_INDEX"),
|
||||||
|
};
|
||||||
|
|
||||||
|
config.historyKeeper = {
|
||||||
|
metadata_cache: Env.metadata_cache,
|
||||||
|
channel_cache: Env.channel_cache,
|
||||||
|
|
||||||
|
id: Env.id,
|
||||||
|
|
||||||
|
channelMessage: function (Server, channel, msgStruct) {
|
||||||
|
// netflux-server emits 'channelMessage' events whenever someone broadcasts to a channel
|
||||||
|
// historyKeeper stores these messages if the channel id indicates that they are
|
||||||
|
// a channel type with permanent history
|
||||||
|
HK.onChannelMessage(Env, Server, channel, msgStruct);
|
||||||
|
},
|
||||||
|
channelClose: function (channelName) {
|
||||||
|
// netflux-server emits 'channelClose' events whenever everyone leaves a channel
|
||||||
|
// we drop cached metadata and indexes at the same time
|
||||||
|
HK.dropChannel(Env, channelName);
|
||||||
|
},
|
||||||
|
channelOpen: function (Server, channelName, userId) {
|
||||||
|
Env.channel_cache[channelName] = {};
|
||||||
|
Server.send(userId, [
|
||||||
|
0,
|
||||||
|
Env.id,
|
||||||
|
'JOIN',
|
||||||
|
channelName
|
||||||
|
]);
|
||||||
|
},
|
||||||
|
directMessage: function (Server, seq, userId, json) {
|
||||||
|
// netflux-server allows you to register an id with a handler
|
||||||
|
// this handler is invoked every time someone sends a message to that id
|
||||||
|
HK.onDirectMessage(Env, Server, seq, userId, json);
|
||||||
|
},
|
||||||
|
};
|
||||||
|
|
||||||
|
Log.verbose('HK_ID', 'History keeper ID: ' + Env.id);
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
require('../storage/file').create(config, w(function (_store) {
|
||||||
|
config.store = _store;
|
||||||
|
Env.store = _store;
|
||||||
|
}));
|
||||||
|
}).nThen(function (w) {
|
||||||
|
require("../storage/tasks").create(config, w(function (e, tasks) {
|
||||||
|
if (e) {
|
||||||
|
throw e;
|
||||||
|
}
|
||||||
|
Env.tasks = tasks;
|
||||||
|
config.tasks = tasks;
|
||||||
|
if (config.disableIntegratedTasks) { return; }
|
||||||
|
|
||||||
|
config.intervals = config.intervals || {};
|
||||||
|
config.intervals.taskExpiration = setInterval(function () {
|
||||||
|
tasks.runAll(function (err) {
|
||||||
|
if (err) {
|
||||||
|
// either TASK_CONCURRENCY or an error with tasks.list
|
||||||
|
// in either case it is already logged.
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}, 1000 * 60 * 5); // run every five minutes
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
RPC.create(config, function (err, _rpc) {
|
||||||
|
if (err) { throw err; }
|
||||||
|
|
||||||
|
Env.rpc = _rpc;
|
||||||
|
cb(void 0, config.historyKeeper);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
@ -0,0 +1,929 @@
|
|||||||
|
/* jshint esversion: 6 */
|
||||||
|
/* global Buffer */
|
||||||
|
var HK = module.exports;
|
||||||
|
|
||||||
|
const nThen = require('nthen');
|
||||||
|
const Once = require("./once");
|
||||||
|
const Meta = require("./metadata");
|
||||||
|
const Nacl = require('tweetnacl/nacl-fast');
|
||||||
|
|
||||||
|
const now = function () { return (new Date()).getTime(); };
|
||||||
|
const ONE_DAY = 1000 * 60 * 60 * 24; // one day in milliseconds
|
||||||
|
|
||||||
|
/* getHash
|
||||||
|
* this function slices off the leading portion of a message which is
|
||||||
|
most likely unique
|
||||||
|
* these "hashes" are used to identify particular messages in a channel's history
|
||||||
|
* clients store "hashes" either in memory or in their drive to query for new messages:
|
||||||
|
* when reconnecting to a pad
|
||||||
|
* when connecting to chat or a mailbox
|
||||||
|
* thus, we can't change this function without invalidating client data which:
|
||||||
|
* is encrypted clientside
|
||||||
|
* can't be easily migrated
|
||||||
|
* don't break it!
|
||||||
|
*/
|
||||||
|
const getHash = HK.getHash = function (msg, Log) {
|
||||||
|
if (typeof(msg) !== 'string') {
|
||||||
|
if (Log) {
|
||||||
|
Log.warn('HK_GET_HASH', 'getHash() called on ' + typeof(msg) + ': ' + msg);
|
||||||
|
}
|
||||||
|
return '';
|
||||||
|
}
|
||||||
|
return msg.slice(0,64);
|
||||||
|
};
|
||||||
|
|
||||||
|
// historyKeeper should explicitly store any channel
|
||||||
|
// with a 32 character id
|
||||||
|
const STANDARD_CHANNEL_LENGTH = HK.STANDARD_CHANNEL_LENGTH = 32;
|
||||||
|
|
||||||
|
// historyKeeper should not store messages sent to any channel
|
||||||
|
// with a 34 character id
|
||||||
|
const EPHEMERAL_CHANNEL_LENGTH = HK.EPHEMERAL_CHANNEL_LENGTH = 34;
|
||||||
|
|
||||||
|
const tryParse = function (Env, str) {
|
||||||
|
try {
|
||||||
|
return JSON.parse(str);
|
||||||
|
} catch (err) {
|
||||||
|
Env.Log.error('HK_PARSE_ERROR', err);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
/* sliceCpIndex
|
||||||
|
returns a list of all checkpoints which might be relevant for a client connecting to a session
|
||||||
|
|
||||||
|
* if there are two or fewer checkpoints, return everything you have
|
||||||
|
* if there are more than two
|
||||||
|
* return at least two
|
||||||
|
* plus any more which were received within the last 100 messages
|
||||||
|
|
||||||
|
This is important because the additional history is what prevents
|
||||||
|
clients from forking on checkpoints and dropping forked history.
|
||||||
|
|
||||||
|
*/
|
||||||
|
const sliceCpIndex = function (cpIndex, line) {
|
||||||
|
// Remove "old" checkpoints (cp sent before 100 messages ago)
|
||||||
|
const minLine = Math.max(0, (line - 100));
|
||||||
|
let start = cpIndex.slice(0, -2);
|
||||||
|
const end = cpIndex.slice(-2);
|
||||||
|
start = start.filter(function (obj) {
|
||||||
|
return obj.line > minLine;
|
||||||
|
});
|
||||||
|
return start.concat(end);
|
||||||
|
};
|
||||||
|
|
||||||
|
const isMetadataMessage = function (parsed) {
|
||||||
|
return Boolean(parsed && parsed.channel);
|
||||||
|
};
|
||||||
|
|
||||||
|
// validateKeyStrings supplied by clients must decode to 32-byte Uint8Arrays
|
||||||
|
const isValidValidateKeyString = function (key) {
|
||||||
|
try {
|
||||||
|
return typeof(key) === 'string' &&
|
||||||
|
Nacl.util.decodeBase64(key).length === Nacl.sign.publicKeyLength;
|
||||||
|
} catch (e) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
var CHECKPOINT_PATTERN = /^cp\|(([A-Za-z0-9+\/=]+)\|)?/;
|
||||||
|
|
||||||
|
/* expireChannel is here to clean up channels that should have been removed
|
||||||
|
but for some reason are still present
|
||||||
|
*/
|
||||||
|
const expireChannel = function (Env, channel) {
|
||||||
|
return void Env.store.archiveChannel(channel, function (err) {
|
||||||
|
Env.Log.info("ARCHIVAL_CHANNEL_BY_HISTORY_KEEPER_EXPIRATION", {
|
||||||
|
channelId: channel,
|
||||||
|
status: err? String(err): "SUCCESS",
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* dropChannel
|
||||||
|
* cleans up memory structures which are managed entirely by the historyKeeper
|
||||||
|
*/
|
||||||
|
const dropChannel = HK.dropChannel = function (Env, chanName) {
|
||||||
|
delete Env.metadata_cache[chanName];
|
||||||
|
delete Env.channel_cache[chanName];
|
||||||
|
};
|
||||||
|
|
||||||
|
/* checkExpired
|
||||||
|
* synchronously returns true or undefined to indicate whether the channel is expired
|
||||||
|
* according to its metadata
|
||||||
|
* has some side effects:
|
||||||
|
* closes the channel via the store.closeChannel API
|
||||||
|
* and then broadcasts to all channel members that the channel has expired
|
||||||
|
* removes the channel from the netflux-server's in-memory cache
|
||||||
|
* removes the channel metadata from history keeper's in-memory cache
|
||||||
|
|
||||||
|
FIXME the boolean nature of this API should be separated from its side effects
|
||||||
|
*/
|
||||||
|
const checkExpired = function (Env, Server, channel) {
|
||||||
|
const store = Env.store;
|
||||||
|
const metadata_cache = Env.metadata_cache;
|
||||||
|
|
||||||
|
if (!(channel && channel.length === STANDARD_CHANNEL_LENGTH)) { return false; }
|
||||||
|
let metadata = metadata_cache[channel];
|
||||||
|
if (!(metadata && typeof(metadata.expire) === 'number')) { return false; }
|
||||||
|
|
||||||
|
// the number of milliseconds ago the channel should have expired
|
||||||
|
let pastDue = (+new Date()) - metadata.expire;
|
||||||
|
|
||||||
|
// less than zero means that it hasn't expired yet
|
||||||
|
if (pastDue < 0) { return false; }
|
||||||
|
|
||||||
|
// if it should have expired more than a day ago...
|
||||||
|
// there may have been a problem with scheduling tasks
|
||||||
|
// or the scheduled tasks may not be running
|
||||||
|
// so trigger a removal from here
|
||||||
|
if (pastDue >= ONE_DAY) { expireChannel(Env, channel); }
|
||||||
|
|
||||||
|
// close the channel
|
||||||
|
store.closeChannel(channel, function () {
|
||||||
|
Server.channelBroadcast(channel, {
|
||||||
|
error: 'EEXPIRED',
|
||||||
|
channel: channel
|
||||||
|
}, Env.id);
|
||||||
|
dropChannel(channel);
|
||||||
|
});
|
||||||
|
|
||||||
|
// return true to indicate that it has expired
|
||||||
|
return true;
|
||||||
|
};
|
||||||
|
|
||||||
|
/* computeIndex
|
||||||
|
can call back with an error or a computed index which includes:
|
||||||
|
* cpIndex:
|
||||||
|
* array including any checkpoints pushed within the last 100 messages
|
||||||
|
* processed by 'sliceCpIndex(cpIndex, line)'
|
||||||
|
* offsetByHash:
|
||||||
|
* a map containing message offsets by their hash
|
||||||
|
* this is for every message in history, so it could be very large...
|
||||||
|
* except we remove offsets from the map if they occur before the oldest relevant checkpoint
|
||||||
|
* size: in bytes
|
||||||
|
* metadata:
|
||||||
|
* validationKey
|
||||||
|
* expiration time
|
||||||
|
* owners
|
||||||
|
* ??? (anything else we might add in the future)
|
||||||
|
* line
|
||||||
|
* the number of messages in history
|
||||||
|
* including the initial metadata line, if it exists
|
||||||
|
|
||||||
|
*/
|
||||||
|
const computeIndex = function (Env, channelName, cb) {
|
||||||
|
const store = Env.store;
|
||||||
|
const Log = Env.Log;
|
||||||
|
|
||||||
|
const cpIndex = [];
|
||||||
|
let messageBuf = [];
|
||||||
|
let metadata;
|
||||||
|
let i = 0;
|
||||||
|
|
||||||
|
const ref = {};
|
||||||
|
|
||||||
|
const CB = Once(cb);
|
||||||
|
|
||||||
|
const offsetByHash = {};
|
||||||
|
let size = 0;
|
||||||
|
nThen(function (w) {
|
||||||
|
// iterate over all messages in the channel log
|
||||||
|
// old channels can contain metadata as the first message of the log
|
||||||
|
// remember metadata the first time you encounter it
|
||||||
|
// otherwise index important messages in the log
|
||||||
|
store.readMessagesBin(channelName, 0, (msgObj, readMore) => {
|
||||||
|
let msg;
|
||||||
|
// keep an eye out for the metadata line if you haven't already seen it
|
||||||
|
// but only check for metadata on the first line
|
||||||
|
if (!i && !metadata && msgObj.buff.indexOf('{') === 0) {
|
||||||
|
i++; // always increment the message counter
|
||||||
|
msg = tryParse(Env, msgObj.buff.toString('utf8'));
|
||||||
|
if (typeof msg === "undefined") { return readMore(); }
|
||||||
|
|
||||||
|
// validate that the current line really is metadata before storing it as such
|
||||||
|
if (isMetadataMessage(msg)) {
|
||||||
|
metadata = msg;
|
||||||
|
return readMore();
|
||||||
|
}
|
||||||
|
}
|
||||||
|
i++;
|
||||||
|
if (msgObj.buff.indexOf('cp|') > -1) {
|
||||||
|
msg = msg || tryParse(Env, msgObj.buff.toString('utf8'));
|
||||||
|
if (typeof msg === "undefined") { return readMore(); }
|
||||||
|
// cache the offsets of checkpoints if they can be parsed
|
||||||
|
if (msg[2] === 'MSG' && msg[4].indexOf('cp|') === 0) {
|
||||||
|
cpIndex.push({
|
||||||
|
offset: msgObj.offset,
|
||||||
|
line: i
|
||||||
|
});
|
||||||
|
// we only want to store messages since the latest checkpoint
|
||||||
|
// so clear the buffer every time you see a new one
|
||||||
|
messageBuf = [];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
// if it's not metadata or a checkpoint then it should be a regular message
|
||||||
|
// store it in the buffer
|
||||||
|
messageBuf.push(msgObj);
|
||||||
|
return readMore();
|
||||||
|
}, w((err) => {
|
||||||
|
if (err && err.code !== 'ENOENT') {
|
||||||
|
w.abort();
|
||||||
|
return void CB(err);
|
||||||
|
}
|
||||||
|
|
||||||
|
// once indexing is complete you should have a buffer of messages since the latest checkpoint
|
||||||
|
// map the 'hash' of each message to its byte offset in the log, to be used for reconnecting clients
|
||||||
|
messageBuf.forEach((msgObj) => {
|
||||||
|
const msg = tryParse(Env, msgObj.buff.toString('utf8'));
|
||||||
|
if (typeof msg === "undefined") { return; }
|
||||||
|
if (msg[0] === 0 && msg[2] === 'MSG' && typeof(msg[4]) === 'string') {
|
||||||
|
// msgObj.offset is API guaranteed by our storage module
|
||||||
|
// it should always be a valid positive integer
|
||||||
|
offsetByHash[getHash(msg[4], Log)] = msgObj.offset;
|
||||||
|
}
|
||||||
|
// There is a trailing \n at the end of the file
|
||||||
|
size = msgObj.offset + msgObj.buff.length + 1;
|
||||||
|
});
|
||||||
|
}));
|
||||||
|
}).nThen(function (w) {
|
||||||
|
// create a function which will iterate over amendments to the metadata
|
||||||
|
const handler = Meta.createLineHandler(ref, Log.error);
|
||||||
|
|
||||||
|
// initialize the accumulator in case there was a foundational metadata line in the log content
|
||||||
|
if (metadata) { handler(void 0, metadata); }
|
||||||
|
|
||||||
|
// iterate over the dedicated metadata log (if it exists)
|
||||||
|
// proceed even in the event of a stream error on the metadata log
|
||||||
|
store.readDedicatedMetadata(channelName, handler, w(function (err) {
|
||||||
|
if (err) {
|
||||||
|
return void Log.error("DEDICATED_METADATA_ERROR", err);
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
// when all is done, cache the metadata in memory
|
||||||
|
if (ref.index) { // but don't bother if no metadata was found...
|
||||||
|
metadata = Env.metadata_cache[channelName] = ref.meta;
|
||||||
|
}
|
||||||
|
// and return the computed index
|
||||||
|
CB(null, {
|
||||||
|
// Only keep the checkpoints included in the last 100 messages
|
||||||
|
cpIndex: sliceCpIndex(cpIndex, i),
|
||||||
|
offsetByHash: offsetByHash,
|
||||||
|
size: size,
|
||||||
|
metadata: metadata,
|
||||||
|
line: i
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* getIndex
|
||||||
|
calls back with an error if anything goes wrong
|
||||||
|
or with a cached index for a channel if it exists
|
||||||
|
(along with metadata)
|
||||||
|
otherwise it calls back with the index computed by 'computeIndex'
|
||||||
|
|
||||||
|
as an added bonus:
|
||||||
|
if the channel exists but its index does not then it caches the index
|
||||||
|
*/
|
||||||
|
const getIndex = (Env, channelName, cb) => {
|
||||||
|
const channel_cache = Env.channel_cache;
|
||||||
|
|
||||||
|
const chan = channel_cache[channelName];
|
||||||
|
|
||||||
|
// if there is a channel in memory and it has an index cached, return it
|
||||||
|
if (chan && chan.index) {
|
||||||
|
// enforce async behaviour
|
||||||
|
return void setTimeout(function () {
|
||||||
|
cb(undefined, chan.index);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
Env.batchIndexReads(channelName, cb, function (done) {
|
||||||
|
computeIndex(Env, channelName, (err, ret) => {
|
||||||
|
// this is most likely an unrecoverable filesystem error
|
||||||
|
if (err) { return void done(err); }
|
||||||
|
// cache the computed result if possible
|
||||||
|
if (chan) { chan.index = ret; }
|
||||||
|
// return
|
||||||
|
done(void 0, ret);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* storeMessage
|
||||||
|
* channel id
|
||||||
|
* the message to store
|
||||||
|
* whether the message is a checkpoint
|
||||||
|
* optionally the hash of the message
|
||||||
|
* it's not always used, but we guard against it
|
||||||
|
|
||||||
|
|
||||||
|
* async but doesn't have a callback
|
||||||
|
* source of a race condition whereby:
|
||||||
|
* two messaages can be inserted
|
||||||
|
* two offsets can be computed using the total size of all the messages
|
||||||
|
* but the offsets don't correspond to the actual location of the newlines
|
||||||
|
* because the two actions were performed like ABba...
|
||||||
|
* the fix is to use callbacks and implement queueing for writes
|
||||||
|
* to guarantee that offset computation is always atomic with writes
|
||||||
|
*/
|
||||||
|
const storeMessage = function (Env, channel, msg, isCp, optionalMessageHash) {
|
||||||
|
const id = channel.id;
|
||||||
|
const Log = Env.Log;
|
||||||
|
|
||||||
|
Env.queueStorage(id, function (next) {
|
||||||
|
const msgBin = Buffer.from(msg + '\n', 'utf8');
|
||||||
|
// Store the message first, and update the index only once it's stored.
|
||||||
|
// store.messageBin can be async so updating the index first may
|
||||||
|
// result in a wrong cpIndex
|
||||||
|
nThen((waitFor) => {
|
||||||
|
Env.store.messageBin(id, msgBin, waitFor(function (err) {
|
||||||
|
if (err) {
|
||||||
|
waitFor.abort();
|
||||||
|
Log.error("HK_STORE_MESSAGE_ERROR", err.message);
|
||||||
|
|
||||||
|
// this error is critical, but there's not much we can do at the moment
|
||||||
|
// proceed with more messages, but they'll probably fail too
|
||||||
|
// at least you won't have a memory leak
|
||||||
|
|
||||||
|
// TODO make it possible to respond to clients with errors so they know
|
||||||
|
// their message wasn't stored
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
}).nThen((waitFor) => {
|
||||||
|
getIndex(Env, id, waitFor((err, index) => {
|
||||||
|
if (err) {
|
||||||
|
Log.warn("HK_STORE_MESSAGE_INDEX", err.stack);
|
||||||
|
// non-critical, we'll be able to get the channel index later
|
||||||
|
return void next();
|
||||||
|
}
|
||||||
|
if (typeof (index.line) === "number") { index.line++; }
|
||||||
|
if (isCp) {
|
||||||
|
index.cpIndex = sliceCpIndex(index.cpIndex, index.line || 0);
|
||||||
|
for (let k in index.offsetByHash) {
|
||||||
|
if (index.offsetByHash[k] < index.cpIndex[0]) {
|
||||||
|
delete index.offsetByHash[k];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
index.cpIndex.push({
|
||||||
|
offset: index.size,
|
||||||
|
line: ((index.line || 0) + 1)
|
||||||
|
});
|
||||||
|
}
|
||||||
|
if (optionalMessageHash) { index.offsetByHash[optionalMessageHash] = index.size; }
|
||||||
|
index.size += msgBin.length;
|
||||||
|
|
||||||
|
// handle the next element in the queue
|
||||||
|
next();
|
||||||
|
}));
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
/* getHistoryOffset
|
||||||
|
returns a number representing the byte offset from the start of the log
|
||||||
|
for whatever history you're seeking.
|
||||||
|
|
||||||
|
query by providing a 'lastKnownHash',
|
||||||
|
which is really just a string of the first 64 characters of an encrypted message.
|
||||||
|
OR by -1 which indicates that we want the full history (byte offset 0)
|
||||||
|
OR nothing, which indicates that you want whatever messages the historyKeeper deems relevant
|
||||||
|
(typically the last few checkpoints)
|
||||||
|
|
||||||
|
this function embeds a lot of the history keeper's logic:
|
||||||
|
|
||||||
|
0. if you passed -1 as the lastKnownHash it means you want the complete history
|
||||||
|
* I'm not sure why you'd need to call this function if you know it will return 0 in this case...
|
||||||
|
* it has a side-effect of filling the index cache if it's empty
|
||||||
|
1. if you provided a lastKnownHash and that message does not exist in the history:
|
||||||
|
* either the client has made a mistake or the history they knew about no longer exists
|
||||||
|
* call back with EINVAL
|
||||||
|
2. if you did not provide a lastKnownHash
|
||||||
|
* and there are fewer than two checkpoints:
|
||||||
|
* return 0 (read from the start of the file)
|
||||||
|
* and there are two or more checkpoints:
|
||||||
|
* return the offset of the earliest checkpoint which 'sliceCpIndex' considers relevant
|
||||||
|
3. if you did provide a lastKnownHash
|
||||||
|
* read through the log until you find the hash that you're looking for
|
||||||
|
* call back with either the byte offset of the message that you found OR
|
||||||
|
* -1 if you didn't find it
|
||||||
|
|
||||||
|
*/
|
||||||
|
const getHistoryOffset = (Env, channelName, lastKnownHash, cb) => {
|
||||||
|
const store = Env.store;
|
||||||
|
const Log = Env.Log;
|
||||||
|
|
||||||
|
// lastKnownhash === -1 means we want the complete history
|
||||||
|
if (lastKnownHash === -1) { return void cb(null, 0); }
|
||||||
|
let offset = -1;
|
||||||
|
nThen((waitFor) => {
|
||||||
|
getIndex(Env, channelName, waitFor((err, index) => {
|
||||||
|
if (err) { waitFor.abort(); return void cb(err); }
|
||||||
|
|
||||||
|
// check if the "hash" the client is requesting exists in the index
|
||||||
|
const lkh = index.offsetByHash[lastKnownHash];
|
||||||
|
// we evict old hashes from the index as new checkpoints are discovered.
|
||||||
|
// if someone connects and asks for a hash that is no longer relevant,
|
||||||
|
// we tell them it's an invalid request. This is because of the semantics of "GET_HISTORY"
|
||||||
|
// which is only ever used when connecting or reconnecting in typical uses of history...
|
||||||
|
// this assumption should hold for uses by chainpad, but perhaps not for other uses cases.
|
||||||
|
// EXCEPT: other cases don't use checkpoints!
|
||||||
|
// clients that are told that their request is invalid should just make another request
|
||||||
|
// without specifying the hash, and just trust the server to give them the relevant data.
|
||||||
|
// QUESTION: does this mean mailboxes are causing the server to store too much stuff in memory?
|
||||||
|
if (lastKnownHash && typeof(lkh) !== "number") {
|
||||||
|
waitFor.abort();
|
||||||
|
return void cb(new Error('EINVAL'));
|
||||||
|
}
|
||||||
|
|
||||||
|
// Since last 2 checkpoints
|
||||||
|
if (!lastKnownHash) {
|
||||||
|
waitFor.abort();
|
||||||
|
// Less than 2 checkpoints in the history: return everything
|
||||||
|
if (index.cpIndex.length < 2) { return void cb(null, 0); }
|
||||||
|
// Otherwise return the second last checkpoint's index
|
||||||
|
return void cb(null, index.cpIndex[0].offset);
|
||||||
|
/* LATER...
|
||||||
|
in practice, two checkpoints can be very close together
|
||||||
|
we have measures to avoid duplicate checkpoints, but editors
|
||||||
|
can produce nearby checkpoints which are slightly different,
|
||||||
|
and slip past these protections. To be really careful, we can
|
||||||
|
seek past nearby checkpoints by some number of patches so as
|
||||||
|
to ensure that all editors have sufficient knowledge of history
|
||||||
|
to reconcile their differences. */
|
||||||
|
}
|
||||||
|
|
||||||
|
offset = lkh;
|
||||||
|
}));
|
||||||
|
}).nThen((waitFor) => {
|
||||||
|
// if offset is less than zero then presumably the channel has no messages
|
||||||
|
// returning falls through to the next block and therefore returns -1
|
||||||
|
if (offset !== -1) { return; }
|
||||||
|
|
||||||
|
// do a lookup from the index
|
||||||
|
// FIXME maybe we don't need this anymore?
|
||||||
|
// otherwise we have a non-negative offset and we can start to read from there
|
||||||
|
store.readMessagesBin(channelName, 0, (msgObj, readMore, abort) => {
|
||||||
|
// tryParse return a parsed message or undefined
|
||||||
|
const msg = tryParse(Env, msgObj.buff.toString('utf8'));
|
||||||
|
// if it was undefined then go onto the next message
|
||||||
|
if (typeof msg === "undefined") { return readMore(); }
|
||||||
|
if (typeof(msg[4]) !== 'string' || lastKnownHash !== getHash(msg[4], Log)) {
|
||||||
|
return void readMore();
|
||||||
|
}
|
||||||
|
offset = msgObj.offset;
|
||||||
|
abort();
|
||||||
|
}, waitFor(function (err) {
|
||||||
|
if (err) { waitFor.abort(); return void cb(err); }
|
||||||
|
}));
|
||||||
|
}).nThen(() => {
|
||||||
|
cb(null, offset);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* getHistoryAsync
|
||||||
|
* finds the appropriate byte offset from which to begin reading using 'getHistoryOffset'
|
||||||
|
* streams through the rest of the messages, safely parsing them and returning the parsed content to the handler
|
||||||
|
* calls back when it has reached the end of the log
|
||||||
|
|
||||||
|
Used by:
|
||||||
|
* GET_HISTORY
|
||||||
|
|
||||||
|
*/
|
||||||
|
const getHistoryAsync = (Env, channelName, lastKnownHash, beforeHash, handler, cb) => {
|
||||||
|
const store = Env.store;
|
||||||
|
|
||||||
|
let offset = -1;
|
||||||
|
nThen((waitFor) => {
|
||||||
|
getHistoryOffset(Env, channelName, lastKnownHash, waitFor((err, os) => {
|
||||||
|
if (err) {
|
||||||
|
waitFor.abort();
|
||||||
|
return void cb(err);
|
||||||
|
}
|
||||||
|
offset = os;
|
||||||
|
}));
|
||||||
|
}).nThen((waitFor) => {
|
||||||
|
if (offset === -1) { return void cb(new Error("could not find offset")); }
|
||||||
|
const start = (beforeHash) ? 0 : offset;
|
||||||
|
store.readMessagesBin(channelName, start, (msgObj, readMore, abort) => {
|
||||||
|
if (beforeHash && msgObj.offset >= offset) { return void abort(); }
|
||||||
|
var parsed = tryParse(Env, msgObj.buff.toString('utf8'));
|
||||||
|
if (!parsed) { return void readMore(); }
|
||||||
|
handler(parsed, readMore);
|
||||||
|
}, waitFor(function (err) {
|
||||||
|
return void cb(err);
|
||||||
|
}));
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
/* getOlderHistory
|
||||||
|
* allows clients to query for all messages until a known hash is read
|
||||||
|
* stores all messages in history as they are read
|
||||||
|
* can therefore be very expensive for memory
|
||||||
|
* should probably be converted to a streaming interface
|
||||||
|
|
||||||
|
Used by:
|
||||||
|
* GET_HISTORY_RANGE
|
||||||
|
*/
|
||||||
|
const getOlderHistory = function (Env, channelName, oldestKnownHash, cb) {
|
||||||
|
const store = Env.store;
|
||||||
|
const Log = Env.Log;
|
||||||
|
var messageBuffer = [];
|
||||||
|
var found = false;
|
||||||
|
store.getMessages(channelName, function (msgStr) {
|
||||||
|
if (found) { return; }
|
||||||
|
|
||||||
|
let parsed = tryParse(Env, msgStr);
|
||||||
|
if (typeof parsed === "undefined") { return; }
|
||||||
|
|
||||||
|
// identify classic metadata messages by their inclusion of a channel.
|
||||||
|
// and don't send metadata, since:
|
||||||
|
// 1. the user won't be interested in it
|
||||||
|
// 2. this metadata is potentially incomplete/incorrect
|
||||||
|
if (isMetadataMessage(parsed)) { return; }
|
||||||
|
|
||||||
|
var content = parsed[4];
|
||||||
|
if (typeof(content) !== 'string') { return; }
|
||||||
|
|
||||||
|
var hash = getHash(content, Log);
|
||||||
|
if (hash === oldestKnownHash) {
|
||||||
|
found = true;
|
||||||
|
}
|
||||||
|
messageBuffer.push(parsed);
|
||||||
|
}, function (err) {
|
||||||
|
if (err) {
|
||||||
|
Log.error("HK_GET_OLDER_HISTORY", err);
|
||||||
|
}
|
||||||
|
cb(messageBuffer);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
const handleRPC = function (Env, Server, seq, userId, parsed) {
|
||||||
|
const HISTORY_KEEPER_ID = Env.id;
|
||||||
|
|
||||||
|
/* RPC Calls... */
|
||||||
|
var rpc_call = parsed.slice(1);
|
||||||
|
|
||||||
|
Server.send(userId, [seq, 'ACK']);
|
||||||
|
try {
|
||||||
|
// slice off the sequence number and pass in the rest of the message
|
||||||
|
Env.rpc(Server, rpc_call, function (err, output) {
|
||||||
|
if (err) {
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify([parsed[0], 'ERROR', err])]);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify([parsed[0]].concat(output))]);
|
||||||
|
});
|
||||||
|
} catch (e) {
|
||||||
|
// if anything throws in the middle, send an error
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify([parsed[0], 'ERROR', 'SERVER_ERROR'])]);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
const handleGetHistory = function (Env, Server, seq, userId, parsed) {
|
||||||
|
const store = Env.store;
|
||||||
|
const tasks = Env.tasks;
|
||||||
|
const metadata_cache = Env.metadata_cache;
|
||||||
|
const channel_cache = Env.channel_cache;
|
||||||
|
const HISTORY_KEEPER_ID = Env.id;
|
||||||
|
const Log = Env.Log;
|
||||||
|
|
||||||
|
// parsed[1] is the channel id
|
||||||
|
// parsed[2] is a validation key or an object containing metadata (optionnal)
|
||||||
|
// parsed[3] is the last known hash (optionnal)
|
||||||
|
|
||||||
|
Server.send(userId, [seq, 'ACK']);
|
||||||
|
var channelName = parsed[1];
|
||||||
|
var config = parsed[2];
|
||||||
|
var metadata = {};
|
||||||
|
var lastKnownHash;
|
||||||
|
|
||||||
|
// clients can optionally pass a map of attributes
|
||||||
|
// if the channel already exists this map will be ignored
|
||||||
|
// otherwise it will be stored as the initial metadata state for the channel
|
||||||
|
if (config && typeof config === "object" && !Array.isArray(parsed[2])) {
|
||||||
|
lastKnownHash = config.lastKnownHash;
|
||||||
|
metadata = config.metadata || {};
|
||||||
|
if (metadata.expire) {
|
||||||
|
metadata.expire = +metadata.expire * 1000 + (+new Date());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
metadata.channel = channelName;
|
||||||
|
metadata.created = +new Date();
|
||||||
|
|
||||||
|
// if the user sends us an invalid key, we won't be able to validate their messages
|
||||||
|
// so they'll never get written to the log anyway. Let's just drop their message
|
||||||
|
// on the floor instead of doing a bunch of extra work
|
||||||
|
// TODO send them an error message so they know something is wrong
|
||||||
|
if (metadata.validateKey && !isValidValidateKeyString(metadata.validateKey)) {
|
||||||
|
return void Log.error('HK_INVALID_KEY', metadata.validateKey);
|
||||||
|
}
|
||||||
|
|
||||||
|
nThen(function (waitFor) {
|
||||||
|
var w = waitFor();
|
||||||
|
|
||||||
|
/* unless this is a young channel, we will serve all messages from an offset
|
||||||
|
this will not include the channel metadata, so we need to explicitly fetch that.
|
||||||
|
unfortunately, we can't just serve it blindly, since then young channels will
|
||||||
|
send the metadata twice, so let's do a quick check of what we're going to serve...
|
||||||
|
*/
|
||||||
|
getIndex(Env, channelName, waitFor((err, index) => {
|
||||||
|
/* if there's an error here, it should be encountered
|
||||||
|
and handled by the next nThen block.
|
||||||
|
so, let's just fall through...
|
||||||
|
*/
|
||||||
|
if (err) { return w(); }
|
||||||
|
|
||||||
|
|
||||||
|
// it's possible that the channel doesn't have metadata
|
||||||
|
// but in that case there's no point in checking if the channel expired
|
||||||
|
// or in trying to send metadata, so just skip this block
|
||||||
|
if (!index || !index.metadata) { return void w(); }
|
||||||
|
// And then check if the channel is expired. If it is, send the error and abort
|
||||||
|
// FIXME this is hard to read because 'checkExpired' has side effects
|
||||||
|
if (checkExpired(Env, Server, channelName)) { return void waitFor.abort(); }
|
||||||
|
// always send metadata with GET_HISTORY requests
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(index.metadata)], w);
|
||||||
|
}));
|
||||||
|
}).nThen(() => {
|
||||||
|
let msgCount = 0;
|
||||||
|
|
||||||
|
// TODO compute lastKnownHash in a manner such that it will always skip past the metadata line?
|
||||||
|
getHistoryAsync(Env, channelName, lastKnownHash, false, (msg, readMore) => {
|
||||||
|
msgCount++;
|
||||||
|
// avoid sending the metadata message a second time
|
||||||
|
if (isMetadataMessage(msg) && metadata_cache[channelName]) { return readMore(); }
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(msg)], readMore);
|
||||||
|
}, (err) => {
|
||||||
|
if (err && err.code !== 'ENOENT') {
|
||||||
|
if (err.message !== 'EINVAL') { Log.error("HK_GET_HISTORY", err); }
|
||||||
|
const parsedMsg = {error:err.message, channel: channelName};
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(parsedMsg)]);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
const chan = channel_cache[channelName];
|
||||||
|
|
||||||
|
if (msgCount === 0 && !metadata_cache[channelName] && Server.channelContainsUser(channelName, userId)) {
|
||||||
|
metadata_cache[channelName] = metadata;
|
||||||
|
|
||||||
|
// the index will have already been constructed and cached at this point
|
||||||
|
// but it will not have detected any metadata because it hasn't been written yet
|
||||||
|
// this means that the cache starts off as invalid, so we have to correct it
|
||||||
|
if (chan && chan.index) { chan.index.metadata = metadata; }
|
||||||
|
|
||||||
|
// new channels will always have their metadata written to a dedicated metadata log
|
||||||
|
// but any lines after the first which are not amendments in a particular format will be ignored.
|
||||||
|
// Thus we should be safe from race conditions here if just write metadata to the log as below...
|
||||||
|
// TODO validate this logic
|
||||||
|
// otherwise maybe we need to check that the metadata log is empty as well
|
||||||
|
store.writeMetadata(channelName, JSON.stringify(metadata), function (err) {
|
||||||
|
if (err) {
|
||||||
|
// FIXME tell the user that there was a channel error?
|
||||||
|
return void Log.error('HK_WRITE_METADATA', {
|
||||||
|
channel: channelName,
|
||||||
|
error: err,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
});
|
||||||
|
|
||||||
|
// write tasks
|
||||||
|
if(metadata.expire && typeof(metadata.expire) === 'number') {
|
||||||
|
// the fun part...
|
||||||
|
// the user has said they want this pad to expire at some point
|
||||||
|
tasks.write(metadata.expire, "EXPIRE", [ channelName ], function (err) {
|
||||||
|
if (err) {
|
||||||
|
// if there is an error, we don't want to crash the whole server...
|
||||||
|
// just log it, and if there's a problem you'll be able to fix it
|
||||||
|
// at a later date with the provided information
|
||||||
|
Log.error('HK_CREATE_EXPIRE_TASK', err);
|
||||||
|
Log.info('HK_INVALID_EXPIRE_TASK', JSON.stringify([metadata.expire, 'EXPIRE', channelName]));
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(metadata)]);
|
||||||
|
}
|
||||||
|
|
||||||
|
// End of history message:
|
||||||
|
let parsedMsg = {state: 1, channel: channelName};
|
||||||
|
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(parsedMsg)]);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
const handleGetHistoryRange = function (Env, Server, seq, userId, parsed) {
|
||||||
|
var channelName = parsed[1];
|
||||||
|
var map = parsed[2];
|
||||||
|
const HISTORY_KEEPER_ID = Env.id;
|
||||||
|
|
||||||
|
if (!(map && typeof(map) === 'object')) {
|
||||||
|
return void Server.send(userId, [seq, 'ERROR', 'INVALID_ARGS', HISTORY_KEEPER_ID]);
|
||||||
|
}
|
||||||
|
|
||||||
|
var oldestKnownHash = map.from;
|
||||||
|
var desiredMessages = map.count;
|
||||||
|
var desiredCheckpoint = map.cpCount;
|
||||||
|
var txid = map.txid;
|
||||||
|
if (typeof(desiredMessages) !== 'number' && typeof(desiredCheckpoint) !== 'number') {
|
||||||
|
return void Server.send(userId, [seq, 'ERROR', 'UNSPECIFIED_COUNT', HISTORY_KEEPER_ID]);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!txid) {
|
||||||
|
return void Server.send(userId, [seq, 'ERROR', 'NO_TXID', HISTORY_KEEPER_ID]);
|
||||||
|
}
|
||||||
|
|
||||||
|
Server.send(userId, [seq, 'ACK']);
|
||||||
|
return void getOlderHistory(Env, channelName, oldestKnownHash, function (messages) {
|
||||||
|
var toSend = [];
|
||||||
|
if (typeof (desiredMessages) === "number") {
|
||||||
|
toSend = messages.slice(-desiredMessages);
|
||||||
|
} else {
|
||||||
|
let cpCount = 0;
|
||||||
|
for (var i = messages.length - 1; i >= 0; i--) {
|
||||||
|
if (/^cp\|/.test(messages[i][4]) && i !== (messages.length - 1)) {
|
||||||
|
cpCount++;
|
||||||
|
}
|
||||||
|
toSend.unshift(messages[i]);
|
||||||
|
if (cpCount >= desiredCheckpoint) { break; }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
toSend.forEach(function (msg) {
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId,
|
||||||
|
JSON.stringify(['HISTORY_RANGE', txid, msg])]);
|
||||||
|
});
|
||||||
|
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId,
|
||||||
|
JSON.stringify(['HISTORY_RANGE_END', txid, channelName])
|
||||||
|
]);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
const handleGetFullHistory = function (Env, Server, seq, userId, parsed) {
|
||||||
|
const HISTORY_KEEPER_ID = Env.id;
|
||||||
|
const Log = Env.Log;
|
||||||
|
|
||||||
|
// parsed[1] is the channel id
|
||||||
|
// parsed[2] is a validation key (optionnal)
|
||||||
|
// parsed[3] is the last known hash (optionnal)
|
||||||
|
|
||||||
|
Server.send(userId, [seq, 'ACK']);
|
||||||
|
|
||||||
|
// FIXME should we send metadata here too?
|
||||||
|
// none of the clientside code which uses this API needs metadata, but it won't hurt to send it (2019-08-22)
|
||||||
|
return void getHistoryAsync(Env, parsed[1], -1, false, (msg, readMore) => {
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(['FULL_HISTORY', msg])], readMore);
|
||||||
|
}, (err) => {
|
||||||
|
let parsedMsg = ['FULL_HISTORY_END', parsed[1]];
|
||||||
|
if (err) {
|
||||||
|
Log.error('HK_GET_FULL_HISTORY', err.stack);
|
||||||
|
parsedMsg = ['ERROR', parsed[1], err.message];
|
||||||
|
}
|
||||||
|
Server.send(userId, [0, HISTORY_KEEPER_ID, 'MSG', userId, JSON.stringify(parsedMsg)]);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
const directMessageCommands = {
|
||||||
|
GET_HISTORY: handleGetHistory,
|
||||||
|
GET_HISTORY_RANGE: handleGetHistoryRange,
|
||||||
|
GET_FULL_HISTORY: handleGetFullHistory,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* onDirectMessage
|
||||||
|
* exported for use by the netflux-server
|
||||||
|
* parses and handles all direct messages directed to the history keeper
|
||||||
|
* check if it's expired and execute all the associated side-effects
|
||||||
|
* routes queries to the appropriate handlers
|
||||||
|
*/
|
||||||
|
HK.onDirectMessage = function (Env, Server, seq, userId, json) {
|
||||||
|
const Log = Env.Log;
|
||||||
|
Log.silly('HK_MESSAGE', json);
|
||||||
|
|
||||||
|
let parsed;
|
||||||
|
try {
|
||||||
|
parsed = JSON.parse(json[2]);
|
||||||
|
} catch (err) {
|
||||||
|
Log.error("HK_PARSE_CLIENT_MESSAGE", json);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
// If the requested history is for an expired channel, abort
|
||||||
|
// Note the if we don't have the keys for that channel in metadata_cache, we'll
|
||||||
|
// have to abort later (once we know the expiration time)
|
||||||
|
if (checkExpired(Env, Server, parsed[1])) { return; }
|
||||||
|
|
||||||
|
// look up the appropriate command in the map of commands or fall back to RPC
|
||||||
|
var command = directMessageCommands[parsed[0]] || handleRPC;
|
||||||
|
|
||||||
|
// run the command with the standard function signature
|
||||||
|
command(Env, Server, seq, userId, parsed);
|
||||||
|
};
|
||||||
|
|
||||||
|
/* onChannelMessage
|
||||||
|
Determine what we should store when a message a broadcasted to a channel"
|
||||||
|
|
||||||
|
* ignores ephemeral channels
|
||||||
|
* ignores messages sent to expired channels
|
||||||
|
* rejects duplicated checkpoints
|
||||||
|
* validates messages to channels that have validation keys
|
||||||
|
* caches the id of the last saved checkpoint
|
||||||
|
* adds timestamps to incoming messages
|
||||||
|
* writes messages to the store
|
||||||
|
*/
|
||||||
|
HK.onChannelMessage = function (Env, Server, channel, msgStruct) {
|
||||||
|
const Log = Env.Log;
|
||||||
|
|
||||||
|
// TODO our usage of 'channel' here looks prone to errors
|
||||||
|
// we only use it for its 'id', but it can contain other stuff
|
||||||
|
// also, we're using this RPC from both the RPC and Netflux-server
|
||||||
|
// we should probably just change this to expect a channel id directly
|
||||||
|
|
||||||
|
// don't store messages if the channel id indicates that it's an ephemeral message
|
||||||
|
if (!channel.id || channel.id.length === EPHEMERAL_CHANNEL_LENGTH) { return; }
|
||||||
|
|
||||||
|
const isCp = /^cp\|/.test(msgStruct[4]);
|
||||||
|
let id;
|
||||||
|
if (isCp) {
|
||||||
|
// id becomes either null or an array or results...
|
||||||
|
id = CHECKPOINT_PATTERN.exec(msgStruct[4]);
|
||||||
|
if (Array.isArray(id) && id[2] && id[2] === channel.lastSavedCp) {
|
||||||
|
// Reject duplicate checkpoints
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
let metadata;
|
||||||
|
nThen(function (w) {
|
||||||
|
// getIndex (and therefore the latest metadata)
|
||||||
|
getIndex(Env, channel.id, w(function (err, index) {
|
||||||
|
if (err) {
|
||||||
|
w.abort();
|
||||||
|
return void Log.error('CHANNEL_MESSAGE_ERROR', err);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!index.metadata) {
|
||||||
|
// if there's no channel metadata then it can't be an expiring channel
|
||||||
|
// nor can we possibly validate it
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
metadata = index.metadata;
|
||||||
|
|
||||||
|
// don't write messages to expired channels
|
||||||
|
if (checkExpired(Env, Server, channel)) { return void w.abort(); }
|
||||||
|
|
||||||
|
// if there's no validateKey present skip to the next block
|
||||||
|
if (!metadata.validateKey) { return; }
|
||||||
|
|
||||||
|
// trim the checkpoint indicator off the message if it's present
|
||||||
|
let signedMsg = (isCp) ? msgStruct[4].replace(CHECKPOINT_PATTERN, '') : msgStruct[4];
|
||||||
|
// convert the message from a base64 string into a Uint8Array
|
||||||
|
|
||||||
|
// FIXME this can fail and the client won't notice
|
||||||
|
signedMsg = Nacl.util.decodeBase64(signedMsg);
|
||||||
|
|
||||||
|
// FIXME this can blow up
|
||||||
|
// TODO check that that won't cause any problems other than not being able to append...
|
||||||
|
const validateKey = Nacl.util.decodeBase64(metadata.validateKey);
|
||||||
|
// validate the message
|
||||||
|
const validated = Nacl.sign.open(signedMsg, validateKey);
|
||||||
|
if (!validated) {
|
||||||
|
// don't go any further if the message fails validation
|
||||||
|
w.abort();
|
||||||
|
Log.info("HK_SIGNED_MESSAGE_REJECTED", 'Channel '+channel.id);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
// do checkpoint stuff...
|
||||||
|
|
||||||
|
// 1. get the checkpoint id
|
||||||
|
// 2. reject duplicate checkpoints
|
||||||
|
|
||||||
|
if (isCp) {
|
||||||
|
// if the message is a checkpoint we will have already validated
|
||||||
|
// that it isn't a duplicate. remember its id so that we can
|
||||||
|
// repeat this process for the next incoming checkpoint
|
||||||
|
|
||||||
|
// WARNING: the fact that we only check the most recent checkpoints
|
||||||
|
// is a potential source of bugs if one editor has high latency and
|
||||||
|
// pushes a duplicate of an earlier checkpoint than the latest which
|
||||||
|
// has been pushed by editors with low latency
|
||||||
|
// FIXME
|
||||||
|
if (Array.isArray(id) && id[2]) {
|
||||||
|
// Store new checkpoint hash
|
||||||
|
channel.lastSavedCp = id[2];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// add the time to the message
|
||||||
|
msgStruct.push(now());
|
||||||
|
|
||||||
|
// storeMessage
|
||||||
|
storeMessage(Env, channel, JSON.stringify(msgStruct), isCp, getHash(msgStruct[4], Log));
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
@ -0,0 +1,306 @@
|
|||||||
|
/*jshint esversion: 6 */
|
||||||
|
const nThen = require("nthen");
|
||||||
|
|
||||||
|
const Util = require("./common-util");
|
||||||
|
const mkEvent = Util.mkEvent;
|
||||||
|
|
||||||
|
const Core = require("./commands/core");
|
||||||
|
const Admin = require("./commands/admin-rpc");
|
||||||
|
const Pinning = require("./commands/pin-rpc");
|
||||||
|
const Quota = require("./commands/quota");
|
||||||
|
const Block = require("./commands/block");
|
||||||
|
const Metadata = require("./commands/metadata");
|
||||||
|
const Channel = require("./commands/channel");
|
||||||
|
const Upload = require("./commands/upload");
|
||||||
|
|
||||||
|
var RPC = module.exports;
|
||||||
|
|
||||||
|
const Store = require("../storage/file");
|
||||||
|
const BlobStore = require("../storage/blob");
|
||||||
|
|
||||||
|
const UNAUTHENTICATED_CALLS = {
|
||||||
|
GET_FILE_SIZE: Pinning.getFileSize,
|
||||||
|
GET_MULTIPLE_FILE_SIZE: Pinning.getMultipleFileSize,
|
||||||
|
GET_DELETED_PADS: Pinning.getDeletedPads,
|
||||||
|
IS_CHANNEL_PINNED: Pinning.isChannelPinned,
|
||||||
|
IS_NEW_CHANNEL: Channel.isNewChannel,
|
||||||
|
WRITE_PRIVATE_MESSAGE: Channel.writePrivateMessage,
|
||||||
|
GET_METADATA: Metadata.getMetadata,
|
||||||
|
};
|
||||||
|
|
||||||
|
var isUnauthenticateMessage = function (msg) {
|
||||||
|
return msg && msg.length === 2 && typeof(UNAUTHENTICATED_CALLS[msg[0]]) === 'function';
|
||||||
|
};
|
||||||
|
|
||||||
|
var handleUnauthenticatedMessage = function (Env, msg, respond, Server) {
|
||||||
|
Env.Log.silly('LOG_RPC', msg[0]);
|
||||||
|
|
||||||
|
var method = UNAUTHENTICATED_CALLS[msg[0]];
|
||||||
|
method(Env, msg[1], function (err, value) {
|
||||||
|
if (err) {
|
||||||
|
Env.WARN(err, msg[1]);
|
||||||
|
return void respond(err);
|
||||||
|
}
|
||||||
|
respond(err, [null, value, null]);
|
||||||
|
}, Server);
|
||||||
|
};
|
||||||
|
|
||||||
|
const AUTHENTICATED_USER_TARGETED = {
|
||||||
|
RESET: Pinning.resetUserPins,
|
||||||
|
PIN: Pinning.pinChannel,
|
||||||
|
UNPIN: Pinning.unpinChannel,
|
||||||
|
CLEAR_OWNED_CHANNEL: Channel.clearOwnedChannel,
|
||||||
|
REMOVE_OWNED_CHANNEL: Channel.removeOwnedChannel,
|
||||||
|
TRIM_HISTORY: Channel.trimHistory,
|
||||||
|
UPLOAD_STATUS: Upload.status,
|
||||||
|
UPLOAD: Upload.upload,
|
||||||
|
UPLOAD_COMPLETE: Upload.complete,
|
||||||
|
UPLOAD_CANCEL: Upload.cancel,
|
||||||
|
OWNED_UPLOAD_COMPLETE: Upload.complete_owned,
|
||||||
|
WRITE_LOGIN_BLOCK: Block.writeLoginBlock,
|
||||||
|
REMOVE_LOGIN_BLOCK: Block.removeLoginBlock,
|
||||||
|
ADMIN: Admin.command,
|
||||||
|
SET_METADATA: Metadata.setMetadata,
|
||||||
|
};
|
||||||
|
|
||||||
|
const AUTHENTICATED_USER_SCOPED = {
|
||||||
|
GET_HASH: Pinning.getHash,
|
||||||
|
GET_TOTAL_SIZE: Pinning.getTotalSize,
|
||||||
|
UPDATE_LIMITS: Quota.getUpdatedLimit,
|
||||||
|
GET_LIMIT: Pinning.getLimit,
|
||||||
|
EXPIRE_SESSION: Core.expireSessionAsync,
|
||||||
|
REMOVE_PINS: Pinning.removePins,
|
||||||
|
TRIM_PINS: Pinning.trimPins,
|
||||||
|
COOKIE: Core.haveACookie,
|
||||||
|
};
|
||||||
|
|
||||||
|
var isAuthenticatedCall = function (call) {
|
||||||
|
if (call === 'UPLOAD') { return false; }
|
||||||
|
return typeof(AUTHENTICATED_USER_TARGETED[call] || AUTHENTICATED_USER_SCOPED[call]) === 'function';
|
||||||
|
};
|
||||||
|
|
||||||
|
var handleAuthenticatedMessage = function (Env, unsafeKey, msg, respond, Server) {
|
||||||
|
/* If you have gotten this far, you have signed the message with the
|
||||||
|
public key which you provided.
|
||||||
|
*/
|
||||||
|
|
||||||
|
var safeKey = Util.escapeKeyCharacters(unsafeKey);
|
||||||
|
|
||||||
|
var Respond = function (e, value) {
|
||||||
|
var session = Env.Sessions[safeKey];
|
||||||
|
var token = session? session.tokens.slice(-1)[0]: '';
|
||||||
|
var cookie = Core.makeCookie(token).join('|');
|
||||||
|
respond(e ? String(e): e, [cookie].concat(typeof(value) !== 'undefined' ?value: []));
|
||||||
|
};
|
||||||
|
|
||||||
|
msg.shift();
|
||||||
|
// discard validated cookie from message
|
||||||
|
if (!msg.length) {
|
||||||
|
return void Respond('INVALID_MSG');
|
||||||
|
}
|
||||||
|
|
||||||
|
var TYPE = msg[0];
|
||||||
|
|
||||||
|
Env.Log.silly('LOG_RPC', TYPE);
|
||||||
|
|
||||||
|
if (typeof(AUTHENTICATED_USER_TARGETED[TYPE]) === 'function') {
|
||||||
|
return void AUTHENTICATED_USER_TARGETED[TYPE](Env, safeKey, msg[1], function (e, value) {
|
||||||
|
Env.WARN(e, value);
|
||||||
|
return void Respond(e, value);
|
||||||
|
}, Server);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (typeof(AUTHENTICATED_USER_SCOPED[TYPE]) === 'function') {
|
||||||
|
return void AUTHENTICATED_USER_SCOPED[TYPE](Env, safeKey, function (e, value) {
|
||||||
|
if (e) {
|
||||||
|
Env.WARN(e, safeKey);
|
||||||
|
return void Respond(e);
|
||||||
|
}
|
||||||
|
Respond(e, value);
|
||||||
|
});
|
||||||
|
}
|
||||||
|
|
||||||
|
return void Respond('UNSUPPORTED_RPC_CALL', msg);
|
||||||
|
};
|
||||||
|
|
||||||
|
var rpc = function (Env, Server, data, respond) {
|
||||||
|
if (!Array.isArray(data)) {
|
||||||
|
Env.Log.debug('INVALID_ARG_FORMET', data);
|
||||||
|
return void respond('INVALID_ARG_FORMAT');
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!data.length) {
|
||||||
|
return void respond("INSUFFICIENT_ARGS");
|
||||||
|
} else if (data.length !== 1) {
|
||||||
|
Env.Log.debug('UNEXPECTED_ARGUMENTS_LENGTH', data);
|
||||||
|
}
|
||||||
|
|
||||||
|
var msg = data[0].slice(0);
|
||||||
|
|
||||||
|
if (!Array.isArray(msg)) {
|
||||||
|
return void respond('INVALID_ARG_FORMAT');
|
||||||
|
}
|
||||||
|
|
||||||
|
if (isUnauthenticateMessage(msg)) {
|
||||||
|
return handleUnauthenticatedMessage(Env, msg, respond, Server);
|
||||||
|
}
|
||||||
|
|
||||||
|
var signature = msg.shift();
|
||||||
|
var publicKey = msg.shift();
|
||||||
|
|
||||||
|
// make sure a user object is initialized in the cookie jar
|
||||||
|
if (publicKey) {
|
||||||
|
Core.getSession(Env.Sessions, publicKey);
|
||||||
|
} else {
|
||||||
|
Env.Log.debug("NO_PUBLIC_KEY_PROVIDED", publicKey);
|
||||||
|
}
|
||||||
|
|
||||||
|
var cookie = msg[0];
|
||||||
|
if (!Core.isValidCookie(Env.Sessions, publicKey, cookie)) {
|
||||||
|
// no cookie is fine if the RPC is to get a cookie
|
||||||
|
if (msg[1] !== 'COOKIE') {
|
||||||
|
return void respond('NO_COOKIE');
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
var serialized = JSON.stringify(msg);
|
||||||
|
|
||||||
|
if (!(serialized && typeof(publicKey) === 'string')) {
|
||||||
|
return void respond('INVALID_MESSAGE_OR_PUBLIC_KEY');
|
||||||
|
}
|
||||||
|
|
||||||
|
var command = msg[1];
|
||||||
|
|
||||||
|
if (command === 'UPLOAD') {
|
||||||
|
// UPLOAD is a special case that skips signature validation
|
||||||
|
// intentional fallthrough behaviour
|
||||||
|
return void handleAuthenticatedMessage(Env, publicKey, msg, respond, Server);
|
||||||
|
}
|
||||||
|
if (isAuthenticatedCall(command)) {
|
||||||
|
// check the signature on the message
|
||||||
|
// refuse the command if it doesn't validate
|
||||||
|
if (Core.checkSignature(Env, serialized, signature, publicKey) === true) {
|
||||||
|
return void handleAuthenticatedMessage(Env, publicKey, msg, respond, Server);
|
||||||
|
}
|
||||||
|
return void respond("INVALID_SIGNATURE_OR_PUBLIC_KEY");
|
||||||
|
}
|
||||||
|
Env.Log.warn('INVALID_RPC_CALL', command);
|
||||||
|
return void respond("INVALID_RPC_CALL");
|
||||||
|
};
|
||||||
|
|
||||||
|
RPC.create = function (config, cb) {
|
||||||
|
var Log = config.log;
|
||||||
|
|
||||||
|
// load pin-store...
|
||||||
|
Log.silly('LOADING RPC MODULE');
|
||||||
|
|
||||||
|
var keyOrDefaultString = function (key, def) {
|
||||||
|
return typeof(config[key]) === 'string'? config[key]: def;
|
||||||
|
};
|
||||||
|
|
||||||
|
var WARN = function (e, output) {
|
||||||
|
if (e && output) {
|
||||||
|
Log.warn(e, {
|
||||||
|
output: output,
|
||||||
|
message: String(e),
|
||||||
|
stack: new Error(e).stack,
|
||||||
|
});
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
if (typeof(config.domain) !== 'undefined') {
|
||||||
|
throw new Error('fuck');
|
||||||
|
}
|
||||||
|
|
||||||
|
var Env = {
|
||||||
|
historyKeeper: config.historyKeeper,
|
||||||
|
intervals: config.intervals || {},
|
||||||
|
maxUploadSize: config.maxUploadSize || (20 * 1024 * 1024),
|
||||||
|
Sessions: {},
|
||||||
|
paths: {},
|
||||||
|
msgStore: config.store,
|
||||||
|
pinStore: undefined,
|
||||||
|
pinnedPads: {},
|
||||||
|
evPinnedPadsReady: mkEvent(true),
|
||||||
|
limits: {},
|
||||||
|
admins: [],
|
||||||
|
Log: Log,
|
||||||
|
WARN: WARN,
|
||||||
|
flushCache: config.flushCache,
|
||||||
|
adminEmail: config.adminEmail,
|
||||||
|
allowSubscriptions: config.allowSubscriptions,
|
||||||
|
myDomain: config.myDomain,
|
||||||
|
mySubdomain: config.mySubdomain,
|
||||||
|
customLimits: config.customLimits,
|
||||||
|
// FIXME this attribute isn't in the default conf
|
||||||
|
// but it is referenced in Quota
|
||||||
|
domain: config.domain
|
||||||
|
};
|
||||||
|
|
||||||
|
Env.defaultStorageLimit = typeof(config.defaultStorageLimit) === 'number' && config.defaultStorageLimit > 0?
|
||||||
|
config.defaultStorageLimit:
|
||||||
|
Core.DEFAULT_LIMIT;
|
||||||
|
|
||||||
|
try {
|
||||||
|
Env.admins = (config.adminKeys || []).map(function (k) {
|
||||||
|
k = k.replace(/\/+$/, '');
|
||||||
|
var s = k.split('/');
|
||||||
|
return s[s.length-1];
|
||||||
|
});
|
||||||
|
} catch (e) {
|
||||||
|
console.error("Can't parse admin keys. Please update or fix your config.js file!");
|
||||||
|
}
|
||||||
|
|
||||||
|
var Sessions = Env.Sessions;
|
||||||
|
var paths = Env.paths;
|
||||||
|
var pinPath = paths.pin = keyOrDefaultString('pinPath', './pins');
|
||||||
|
paths.block = keyOrDefaultString('blockPath', './block');
|
||||||
|
paths.data = keyOrDefaultString('filePath', './datastore');
|
||||||
|
paths.staging = keyOrDefaultString('blobStagingPath', './blobstage');
|
||||||
|
paths.blob = keyOrDefaultString('blobPath', './blob');
|
||||||
|
|
||||||
|
var updateLimitDaily = function () {
|
||||||
|
Quota.updateCachedLimits(Env, function (e) {
|
||||||
|
if (e) {
|
||||||
|
WARN('limitUpdate', e);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
};
|
||||||
|
Quota.applyCustomLimits(Env);
|
||||||
|
updateLimitDaily();
|
||||||
|
Env.intervals.dailyLimitUpdate = setInterval(updateLimitDaily, 24*3600*1000);
|
||||||
|
|
||||||
|
Pinning.loadChannelPins(Env);
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
Store.create({
|
||||||
|
filePath: pinPath,
|
||||||
|
}, w(function (s) {
|
||||||
|
Env.pinStore = s;
|
||||||
|
}));
|
||||||
|
BlobStore.create({
|
||||||
|
blobPath: config.blobPath,
|
||||||
|
blobStagingPath: config.blobStagingPath,
|
||||||
|
archivePath: config.archivePath,
|
||||||
|
getSession: function (safeKey) {
|
||||||
|
return Core.getSession(Sessions, safeKey);
|
||||||
|
},
|
||||||
|
}, w(function (err, blob) {
|
||||||
|
if (err) { throw new Error(err); }
|
||||||
|
Env.blobStore = blob;
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
cb(void 0, function (Server, data, respond) {
|
||||||
|
try {
|
||||||
|
return rpc(Env, Server, data, respond);
|
||||||
|
} catch (e) {
|
||||||
|
console.log("Error from RPC with data " + JSON.stringify(data));
|
||||||
|
console.log(e.stack);
|
||||||
|
}
|
||||||
|
});
|
||||||
|
// expire old sessions once per minute
|
||||||
|
Env.intervals.sessionExpirationInterval = setInterval(function () {
|
||||||
|
Core.expireSessions(Sessions);
|
||||||
|
}, Core.SESSION_EXPIRATION_TIME);
|
||||||
|
});
|
||||||
|
};
|
||||||
@ -0,0 +1,172 @@
|
|||||||
|
var WriteQueue = require("./write-queue");
|
||||||
|
var Util = require("./common-util");
|
||||||
|
|
||||||
|
/* This module provides implements a FIFO scheduler
|
||||||
|
which assumes the existence of three types of async tasks:
|
||||||
|
|
||||||
|
1. ordered tasks which must be executed sequentially
|
||||||
|
2. unordered tasks which can be executed in parallel
|
||||||
|
3. blocking tasks which must block the execution of all other tasks
|
||||||
|
|
||||||
|
The scheduler assumes there will be many resources identified by strings,
|
||||||
|
and that the constraints described above will only apply in the context
|
||||||
|
of identical string ids.
|
||||||
|
|
||||||
|
Many blocking tasks may be executed in parallel so long as they
|
||||||
|
concern resources identified by different ids.
|
||||||
|
|
||||||
|
USAGE:
|
||||||
|
|
||||||
|
const schedule = require("./schedule")();
|
||||||
|
|
||||||
|
// schedule two sequential tasks using the resource 'pewpew'
|
||||||
|
schedule.ordered('pewpew', function (next) {
|
||||||
|
appendToFile('beep\n', next);
|
||||||
|
});
|
||||||
|
schedule.ordered('pewpew', function (next) {
|
||||||
|
appendToFile('boop\n', next);
|
||||||
|
});
|
||||||
|
|
||||||
|
// schedule a task that can happen whenever
|
||||||
|
schedule.unordered('pewpew', function (next) {
|
||||||
|
displayFileSize(next);
|
||||||
|
});
|
||||||
|
|
||||||
|
// schedule a blocking task which will wait
|
||||||
|
// until the all unordered tasks have completed before commencing
|
||||||
|
schedule.blocking('pewpew', function (next) {
|
||||||
|
deleteFile(next);
|
||||||
|
});
|
||||||
|
|
||||||
|
// this will be queued for after the blocking task
|
||||||
|
schedule.ordered('pewpew', function (next) {
|
||||||
|
appendFile('boom', next);
|
||||||
|
});
|
||||||
|
|
||||||
|
*/
|
||||||
|
|
||||||
|
// return a uid which is not already in a map
|
||||||
|
var unusedUid = function (set) {
|
||||||
|
var uid = Util.uid();
|
||||||
|
if (set[uid]) { return unusedUid(); }
|
||||||
|
return uid;
|
||||||
|
};
|
||||||
|
|
||||||
|
// return an existing session, creating one if it does not already exist
|
||||||
|
var lookup = function (map, id) {
|
||||||
|
return (map[id] = map[id] || {
|
||||||
|
//blocking: [],
|
||||||
|
active: {},
|
||||||
|
blocked: {},
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var isEmpty = function (map) {
|
||||||
|
for (var key in map) {
|
||||||
|
if (map.hasOwnProperty(key)) { return false; }
|
||||||
|
}
|
||||||
|
return true;
|
||||||
|
};
|
||||||
|
|
||||||
|
module.exports = function () {
|
||||||
|
// every scheduler instance has its own queue
|
||||||
|
var queue = WriteQueue();
|
||||||
|
|
||||||
|
// ordered tasks don't require any extra logic
|
||||||
|
var Ordered = function (id, task) {
|
||||||
|
queue(id, task);
|
||||||
|
};
|
||||||
|
|
||||||
|
// unordered and blocking tasks need a little extra state
|
||||||
|
var map = {};
|
||||||
|
|
||||||
|
// regular garbage collection keeps memory consumption low
|
||||||
|
var collectGarbage = function (id) {
|
||||||
|
// avoid using 'lookup' since it creates a session implicitly
|
||||||
|
var local = map[id];
|
||||||
|
// bail out if no session
|
||||||
|
if (!local) { return; }
|
||||||
|
// bail out if there are blocking or active tasks
|
||||||
|
if (local.lock) { return; }
|
||||||
|
if (!isEmpty(local.active)) { return; }
|
||||||
|
// if there are no pending actions then delete the session
|
||||||
|
delete map[id];
|
||||||
|
};
|
||||||
|
|
||||||
|
// unordered tasks run immediately if there are no blocking tasks scheduled
|
||||||
|
// or immediately after blocking tasks finish
|
||||||
|
var runImmediately = function (local, task) {
|
||||||
|
// set a flag in the map of active unordered tasks
|
||||||
|
// to prevent blocking tasks from running until you finish
|
||||||
|
var uid = unusedUid(local.active);
|
||||||
|
local.active[uid] = true;
|
||||||
|
|
||||||
|
task(function () {
|
||||||
|
// remove the flag you set to indicate that your task completed
|
||||||
|
delete local.active[uid];
|
||||||
|
// don't do anything if other unordered tasks are still running
|
||||||
|
if (!isEmpty(local.active)) { return; }
|
||||||
|
// bail out if there are no blocking tasks scheduled or ready
|
||||||
|
if (typeof(local.waiting) !== 'function') {
|
||||||
|
return void collectGarbage();
|
||||||
|
}
|
||||||
|
setTimeout(local.waiting);
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
var runOnceUnblocked = function (local, task) {
|
||||||
|
var uid = unusedUid(local.blocked);
|
||||||
|
local.blocked[uid] = function () {
|
||||||
|
runImmediately(local, task);
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
// 'unordered' tasks are scheduled to run in after the most recently received blocking task
|
||||||
|
// or immediately and in parallel if there are no blocking tasks scheduled.
|
||||||
|
var Unordered = function (id, task) {
|
||||||
|
var local = lookup(map, id);
|
||||||
|
if (local.lock) { return runOnceUnblocked(local, task); }
|
||||||
|
runImmediately(local, task);
|
||||||
|
};
|
||||||
|
|
||||||
|
var runBlocked = function (local) {
|
||||||
|
for (var task in local.blocked) {
|
||||||
|
runImmediately(local, local.blocked[task]);
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
// 'blocking' tasks must be run alone.
|
||||||
|
// They are queued alongside ordered tasks,
|
||||||
|
// and wait until any running 'unordered' tasks complete before commencing.
|
||||||
|
var Blocking = function (id, task) {
|
||||||
|
var local = lookup(map, id);
|
||||||
|
|
||||||
|
queue(id, function (next) {
|
||||||
|
// start right away if there are no running unordered tasks
|
||||||
|
if (isEmpty(local.active)) {
|
||||||
|
local.lock = true;
|
||||||
|
return void task(function () {
|
||||||
|
delete local.lock;
|
||||||
|
runBlocked(local);
|
||||||
|
next();
|
||||||
|
});
|
||||||
|
}
|
||||||
|
// otherwise wait until the running tasks have completed
|
||||||
|
local.waiting = function () {
|
||||||
|
local.lock = true;
|
||||||
|
task(function () {
|
||||||
|
delete local.lock;
|
||||||
|
delete local.waiting;
|
||||||
|
runBlocked(local);
|
||||||
|
next();
|
||||||
|
});
|
||||||
|
};
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
return {
|
||||||
|
ordered: Ordered,
|
||||||
|
unordered: Unordered,
|
||||||
|
blocking: Blocking,
|
||||||
|
};
|
||||||
|
};
|
||||||
@ -0,0 +1,220 @@
|
|||||||
|
/* three types of actions:
|
||||||
|
* read
|
||||||
|
* write
|
||||||
|
* append
|
||||||
|
each of which take a random amount of time
|
||||||
|
|
||||||
|
*/
|
||||||
|
var Util = require("../../lib/common-util");
|
||||||
|
var schedule = require("../../lib/schedule")();
|
||||||
|
var nThen = require("nthen");
|
||||||
|
|
||||||
|
var rand = function (n) {
|
||||||
|
return Math.floor(Math.random() * n);
|
||||||
|
};
|
||||||
|
|
||||||
|
var rand_time = function () {
|
||||||
|
// between 51 and 151
|
||||||
|
return rand(300) + 25;
|
||||||
|
};
|
||||||
|
|
||||||
|
var makeAction = function (type) {
|
||||||
|
var i = 0;
|
||||||
|
return function (time) {
|
||||||
|
var j = i++;
|
||||||
|
return function (next) {
|
||||||
|
console.log(" Beginning action: %s#%s", type, j);
|
||||||
|
setTimeout(function () {
|
||||||
|
console.log(" Completed action: %s#%s", type, j);
|
||||||
|
next();
|
||||||
|
}, time);
|
||||||
|
return j;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
};
|
||||||
|
|
||||||
|
var TYPES = ['WRITE', 'READ', 'APPEND'];
|
||||||
|
var chooseAction = function () {
|
||||||
|
var n = rand(100);
|
||||||
|
|
||||||
|
if (n < 50) { return 'APPEND'; }
|
||||||
|
if (n < 90) { return 'READ'; }
|
||||||
|
return 'WRITE';
|
||||||
|
|
||||||
|
//return TYPES[rand(3)];
|
||||||
|
};
|
||||||
|
|
||||||
|
var test = function (script, cb) {
|
||||||
|
var uid = Util.uid();
|
||||||
|
|
||||||
|
var TO_RUN = script.length;
|
||||||
|
var total_run = 0;
|
||||||
|
|
||||||
|
var parallel = 0;
|
||||||
|
var last_run_ordered = -1;
|
||||||
|
//var i = 0;
|
||||||
|
|
||||||
|
var ACTIONS = {};
|
||||||
|
TYPES.forEach(function (type) {
|
||||||
|
ACTIONS[type] = makeAction(type);
|
||||||
|
});
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
setTimeout(w(), 3000);
|
||||||
|
// run scripted actions with assertions
|
||||||
|
script.forEach(function (scene) {
|
||||||
|
var type = scene[0];
|
||||||
|
var time = typeof(scene[1]) === 'number'? scene[1]: rand_time();
|
||||||
|
|
||||||
|
var action = ACTIONS[type](time);
|
||||||
|
console.log("Queuing action of type: %s(%s)", type, time);
|
||||||
|
|
||||||
|
var proceed = w();
|
||||||
|
|
||||||
|
switch (type) {
|
||||||
|
case 'APPEND':
|
||||||
|
return schedule.ordered(uid, w(function (next) {
|
||||||
|
parallel++;
|
||||||
|
var temp = action(function () {
|
||||||
|
parallel--;
|
||||||
|
total_run++;
|
||||||
|
proceed();
|
||||||
|
next();
|
||||||
|
});
|
||||||
|
if (temp !== (last_run_ordered + 1)) {
|
||||||
|
throw new Error("out of order");
|
||||||
|
}
|
||||||
|
last_run_ordered = temp;
|
||||||
|
}));
|
||||||
|
case 'WRITE':
|
||||||
|
return schedule.blocking(uid, w(function (next) {
|
||||||
|
parallel++;
|
||||||
|
action(function () {
|
||||||
|
parallel--;
|
||||||
|
total_run++;
|
||||||
|
proceed();
|
||||||
|
next();
|
||||||
|
});
|
||||||
|
if (parallel > 1) {
|
||||||
|
console.log("parallelism === %s", parallel);
|
||||||
|
throw new Error("too much parallel");
|
||||||
|
}
|
||||||
|
}));
|
||||||
|
case 'READ':
|
||||||
|
return schedule.unordered(uid, w(function (next) {
|
||||||
|
parallel++;
|
||||||
|
action(function () {
|
||||||
|
parallel--;
|
||||||
|
total_run++;
|
||||||
|
proceed();
|
||||||
|
next();
|
||||||
|
});
|
||||||
|
}));
|
||||||
|
default:
|
||||||
|
throw new Error("wut");
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}).nThen(function () {
|
||||||
|
// make assertions about the whole script
|
||||||
|
if (total_run !== TO_RUN) {
|
||||||
|
console.log("Ran %s / %s", total_run, TO_RUN);
|
||||||
|
throw new Error("skipped tasks");
|
||||||
|
}
|
||||||
|
console.log("total_run === %s", total_run);
|
||||||
|
|
||||||
|
cb();
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
|
||||||
|
var randomScript = function () {
|
||||||
|
var len = rand(15) + 10;
|
||||||
|
var script = [];
|
||||||
|
while (len--) {
|
||||||
|
script.push([
|
||||||
|
chooseAction(),
|
||||||
|
rand_time(),
|
||||||
|
]);
|
||||||
|
}
|
||||||
|
return script;
|
||||||
|
};
|
||||||
|
|
||||||
|
var WRITE = function (t) {
|
||||||
|
return ['WRITE', t];
|
||||||
|
};
|
||||||
|
var READ = function (t) {
|
||||||
|
return ['READ', t];
|
||||||
|
};
|
||||||
|
|
||||||
|
var APPEND = function (t) {
|
||||||
|
return ['APPEND', t];
|
||||||
|
};
|
||||||
|
|
||||||
|
nThen(function (w) {
|
||||||
|
test([
|
||||||
|
['READ', 150],
|
||||||
|
['APPEND', 200],
|
||||||
|
['APPEND', 100],
|
||||||
|
['READ', 350],
|
||||||
|
['WRITE', 400],
|
||||||
|
['APPEND', 275],
|
||||||
|
['APPEND', 187],
|
||||||
|
['WRITE', 330],
|
||||||
|
['WRITE', 264],
|
||||||
|
['WRITE', 256],
|
||||||
|
], w(function () {
|
||||||
|
console.log("finished pre-scripted test\n");
|
||||||
|
}));
|
||||||
|
}).nThen(function (w) {
|
||||||
|
test([
|
||||||
|
WRITE(289),
|
||||||
|
APPEND(281),
|
||||||
|
READ(207),
|
||||||
|
WRITE(225),
|
||||||
|
READ(279),
|
||||||
|
WRITE(300),
|
||||||
|
READ(331),
|
||||||
|
APPEND(341),
|
||||||
|
APPEND(385),
|
||||||
|
READ(313),
|
||||||
|
WRITE(285),
|
||||||
|
READ(304),
|
||||||
|
APPEND(273),
|
||||||
|
APPEND(150),
|
||||||
|
WRITE(246),
|
||||||
|
READ(244),
|
||||||
|
WRITE(172),
|
||||||
|
APPEND(253),
|
||||||
|
READ(215),
|
||||||
|
READ(296),
|
||||||
|
APPEND(281),
|
||||||
|
APPEND(296),
|
||||||
|
WRITE(168),
|
||||||
|
], w(function () {
|
||||||
|
console.log("finished 2nd pre-scripted test\n");
|
||||||
|
}));
|
||||||
|
}).nThen(function () {
|
||||||
|
var totalTests = 50;
|
||||||
|
var randomTests = 1;
|
||||||
|
|
||||||
|
var last = nThen(function () {
|
||||||
|
console.log("beginning randomized tests");
|
||||||
|
});
|
||||||
|
|
||||||
|
var queueRandomTest = function (i) {
|
||||||
|
last = last.nThen(function (w) {
|
||||||
|
console.log("running random test script #%s\n", i);
|
||||||
|
test(randomScript(), w(function () {
|
||||||
|
console.log("finished random test #%s\n", i);
|
||||||
|
}));
|
||||||
|
});
|
||||||
|
};
|
||||||
|
|
||||||
|
while (randomTests <=totalTests) { queueRandomTest(randomTests++); }
|
||||||
|
|
||||||
|
last.nThen(function () {
|
||||||
|
console.log("finished %s random tests", totalTests);
|
||||||
|
});
|
||||||
|
});
|
||||||
|
|
||||||
|
|
||||||
Loading…
Reference in New Issue