mirror of https://github.com/xwiki-labs/cryptpad
Update package.json and sync file.js
This commit is contained in:
Caleb James DeLisle
parent
006d99e19a
commit
88f3e730b9
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@ -3,10 +3,12 @@
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"description": "realtime collaborative visual editor with zero knowlege server",
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"version": "1.25.0",
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"dependencies": {
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"chainpad-server": "^1.0.1",
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"chainpad-server": "^2.0.0",
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"express": "~4.10.1",
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"nthen": "~0.1.0",
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"pull-stream": "^3.6.1",
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"saferphore": "0.0.1",
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"stream-to-pull-stream": "^1.7.2",
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"tweetnacl": "~0.12.2",
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"ws": "^1.0.1"
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},
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171
storage/file.js
171
storage/file.js
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@ -1,6 +1,11 @@
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/*@flow*/
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/* jshint esversion: 6 */
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/* global Buffer */
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var Fs = require("fs");
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var Path = require("path");
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var nThen = require("nthen");
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const ToPull = require('stream-to-pull-stream');
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const Pull = require('pull-stream');
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var mkPath = function (env, channelId) {
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return Path.join(env.root, channelId.slice(0, 2), channelId) + '.ndjson';
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@ -8,7 +13,7 @@ var mkPath = function (env, channelId) {
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var getMetadataAtPath = function (Env, path, cb) {
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var remainder = '';
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var stream = Fs.createReadStream(path, 'utf8');
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var stream = Fs.createReadStream(path, { encoding: 'utf8' });
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var complete = function (err, data) {
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var _cb = cb;
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cb = undefined;
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@ -25,16 +30,16 @@ var getMetadataAtPath = function (Env, path, cb) {
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var parsed = null;
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try {
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parsed = JSON.parse(metadata);
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complete(void 0, parsed);
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complete(undefined, parsed);
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}
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catch (e) {
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console.log();
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console.log("getMetadataAtPath");
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console.error(e);
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complete('INVALID_METADATA');
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}
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});
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stream.on('end', function () {
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complete(null);
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complete();
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});
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stream.on('error', function (e) { complete(e); });
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};
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@ -59,7 +64,7 @@ var closeChannel = function (env, channelName, cb) {
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var clearChannel = function (env, channelId, cb) {
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var path = mkPath(env, channelId);
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getMetadataAtPath(env, path, function (e, metadata) {
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if (e) { return cb(e); }
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if (e) { return cb(new Error(e)); }
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if (!metadata) {
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return void Fs.truncate(path, 0, function (err) {
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if (err) {
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@ -87,7 +92,7 @@ var clearChannel = function (env, channelId, cb) {
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var readMessages = function (path, msgHandler, cb) {
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var remainder = '';
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var stream = Fs.createReadStream(path, 'utf8');
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var stream = Fs.createReadStream(path, { encoding: 'utf8' });
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var complete = function (err) {
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var _cb = cb;
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cb = undefined;
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@ -106,6 +111,60 @@ var readMessages = function (path, msgHandler, cb) {
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stream.on('error', function (e) { complete(e); });
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};
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const NEWLINE_CHR = ('\n').charCodeAt(0);
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const mkBufferSplit = () => {
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let remainder = null;
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return Pull((read) => {
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return (abort, cb) => {
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read(abort, function (end, data) {
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if (end) {
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cb(end, remainder ? [remainder, data] : [data]);
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remainder = null;
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return;
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}
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const queue = [];
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for (;;) {
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const offset = data.indexOf(NEWLINE_CHR);
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if (offset < 0) {
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remainder = remainder ? Buffer.concat([remainder, data]) : data;
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break;
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}
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let subArray = data.slice(0, offset);
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if (remainder) {
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subArray = Buffer.concat([remainder, subArray]);
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remainder = null;
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}
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queue.push(subArray);
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data = data.slice(offset + 1);
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}
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cb(end, queue);
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});
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};
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}, Pull.flatten());
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};
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const mkOffsetCounter = () => {
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let offset = 0;
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return Pull.map((buff) => {
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const out = { offset: offset, buff: buff };
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// +1 for the eaten newline
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offset += buff.length + 1;
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return out;
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});
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};
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const readMessagesBin = (env, id, start, msgHandler, cb) => {
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const stream = Fs.createReadStream(mkPath(env, id), { start: start });
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let keepReading = true;
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Pull(
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ToPull.read(stream),
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mkBufferSplit(),
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mkOffsetCounter(),
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Pull.asyncMap((data, moreCb) => { msgHandler(data, moreCb, ()=>{ keepReading = false; moreCb(); }); }),
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Pull.drain(()=>(keepReading), cb)
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);
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};
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var checkPath = function (path, callback) {
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// TODO check if we actually need to use stat at all
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Fs.stat(path, function (err) {
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@ -117,7 +176,8 @@ var checkPath = function (path, callback) {
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callback(err);
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return;
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}
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Fs.mkdir(Path.dirname(path), function (err) {
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// 511 -> octal 777
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Fs.mkdir(Path.dirname(path), 511, function (err) {
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if (err && err.code !== 'EEXIST') {
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callback(err);
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return;
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@ -154,7 +214,28 @@ var flushUnusedChannels = function (env, cb, frame) {
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cb();
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};
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var getChannel = function (env, id, callback) {
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var channelBytes = function (env, chanName, cb) {
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var path = mkPath(env, chanName);
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Fs.stat(path, function (err, stats) {
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if (err) { return void cb(err); }
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cb(undefined, stats.size);
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});
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};
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/*::
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export type ChainPadServer_ChannelInternal_t = {
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atime: number,
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writeStream: typeof(process.stdout),
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whenLoaded: ?Array<(err:?Error, chan:?ChainPadServer_ChannelInternal_t)=>void>,
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onError: Array<(?Error)=>void>,
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path: string
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};
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*/
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var getChannel = function (
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env,
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id,
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callback /*:(err:?Error, chan:?ChainPadServer_ChannelInternal_t)=>void*/
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) {
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if (env.channels[id]) {
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var chan = env.channels[id];
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chan.atime = +new Date();
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@ -178,9 +259,9 @@ var getChannel = function (env, id, callback) {
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});
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}
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var path = mkPath(env, id);
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var channel = env.channels[id] = {
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var channel /*:ChainPadServer_ChannelInternal_t*/ = env.channels[id] = {
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atime: +new Date(),
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writeStream: undefined,
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writeStream: (undefined /*:any*/),
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whenLoaded: [ callback ],
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onError: [ ],
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path: path
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@ -193,6 +274,9 @@ var getChannel = function (env, id, callback) {
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if (err) {
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delete env.channels[id];
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}
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if (!channel.writeStream) {
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throw new Error("getChannel() complete called without channel writeStream");
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}
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whenLoaded.forEach(function (wl) { wl(err, (err) ? undefined : channel); });
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};
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var fileExists;
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@ -211,7 +295,7 @@ var getChannel = function (env, id, callback) {
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var stream = channel.writeStream = Fs.createWriteStream(path, { flags: 'a' });
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env.openFiles++;
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stream.on('open', waitFor());
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stream.on('error', function (err) {
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stream.on('error', function (err /*:?Error*/) {
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env.openFiles--;
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// this might be called after this nThen block closes.
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if (channel.whenLoaded) {
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@ -228,20 +312,22 @@ var getChannel = function (env, id, callback) {
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});
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};
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var message = function (env, chanName, msg, cb) {
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const messageBin = (env, chanName, msgBin, cb) => {
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getChannel(env, chanName, function (err, chan) {
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if (err) {
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if (!chan) {
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cb(err);
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return;
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}
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let called = false;
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var complete = function (err) {
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var _cb = cb;
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cb = undefined;
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if (_cb) { _cb(err); }
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if (called) { return; }
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called = true;
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cb(err);
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};
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chan.onError.push(complete);
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chan.writeStream.write(msg + '\n', function () {
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chan.onError.splice(chan.onError.indexOf(complete) - 1, 1);
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chan.writeStream.write(msgBin, function () {
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/*::if (!chan) { throw new Error("Flow unreachable"); }*/
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chan.onError.splice(chan.onError.indexOf(complete), 1);
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if (!cb) { return; }
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//chan.messages.push(msg);
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chan.atime = +new Date();
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@ -250,9 +336,13 @@ var message = function (env, chanName, msg, cb) {
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});
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};
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var message = function (env, chanName, msg, cb) {
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messageBin(env, chanName, new Buffer(msg + '\n', 'utf8'), cb);
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};
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var getMessages = function (env, chanName, handler, cb) {
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getChannel(env, chanName, function (err, chan) {
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if (err) {
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if (!chan) {
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cb(err);
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return;
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}
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@ -271,21 +361,39 @@ var getMessages = function (env, chanName, handler, cb) {
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errorState = true;
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return void cb(err);
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}
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if (!chan) { throw new Error("impossible, flow checking"); }
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chan.atime = +new Date();
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cb();
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});
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});
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};
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var channelBytes = function (env, chanName, cb) {
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var path = mkPath(env, chanName);
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Fs.stat(path, function (err, stats) {
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if (err) { return void cb(err); }
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cb(void 0, stats.size);
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});
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/*::
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export type ChainPadServer_MessageObj_t = { buff: Buffer, offset: number };
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export type ChainPadServer_Storage_t = {
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readMessagesBin: (
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channelName:string,
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start:number,
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asyncMsgHandler:(msg:ChainPadServer_MessageObj_t, moreCb:()=>void, abortCb:()=>void)=>void,
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cb:(err:?Error)=>void
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)=>void,
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message: (channelName:string, content:string, cb:(err:?Error)=>void)=>void,
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messageBin: (channelName:string, content:Buffer, cb:(err:?Error)=>void)=>void,
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getMessages: (channelName:string, msgHandler:(msg:string)=>void, cb:(err:?Error)=>void)=>void,
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removeChannel: (channelName:string, cb:(err:?Error)=>void)=>void,
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closeChannel: (channelName:string, cb:(err:?Error)=>void)=>void,
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flushUnusedChannels: (cb:()=>void)=>void,
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getChannelSize: (channelName:string, cb:(err:?Error, size:?number)=>void)=>void,
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getChannelMetadata: (channelName:string, cb:(err:?Error|string, data:?any)=>void)=>void,
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clearChannel: (channelName:string, (err:?Error)=>void)=>void
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};
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module.exports.create = function (conf, cb) {
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const flow_Config = require('../config.example.js');
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type Config_t = typeof(flow_Config);
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*/
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module.exports.create = function (
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conf /*:Config_t*/,
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cb /*:(store:ChainPadServer_Storage_t)=>void*/
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) {
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var env = {
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root: conf.filePath || './datastore',
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channels: { },
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@ -294,15 +402,22 @@ module.exports.create = function (conf, cb) {
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openFiles: 0,
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openFileLimit: conf.openFileLimit || 2048,
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};
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Fs.mkdir(env.root, function (err) {
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// 0x1ff -> 777
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Fs.mkdir(env.root, 0x1ff, function (err) {
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if (err && err.code !== 'EEXIST') {
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// TODO: somehow return a nice error
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throw err;
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}
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cb({
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readMessagesBin: (channelName, start, asyncMsgHandler, cb) => {
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readMessagesBin(env, channelName, start, asyncMsgHandler, cb);
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},
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message: function (channelName, content, cb) {
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message(env, channelName, content, cb);
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},
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messageBin: (channelName, content, cb) => {
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messageBin(env, channelName, content, cb);
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},
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getMessages: function (channelName, msgHandler, cb) {
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getMessages(env, channelName, msgHandler, cb);
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},
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