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Diffstat (limited to 'signaling-server/node_modules/redis')
| -rw-r--r-- | signaling-server/node_modules/redis/.npmignore | 8 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/README.md | 744 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/connection_breaker.js | 80 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/index.js | 1284 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/lib/commands.js | 163 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/lib/parser/hiredis.js | 46 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/lib/parser/javascript.js | 301 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/lib/queue.js | 59 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/lib/to_array.js | 12 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/lib/util.js | 11 | ||||
| -rw-r--r-- | signaling-server/node_modules/redis/package.json | 58 |
11 files changed, 2766 insertions, 0 deletions
diff --git a/signaling-server/node_modules/redis/.npmignore b/signaling-server/node_modules/redis/.npmignore new file mode 100644 index 0000000..61755a6 --- /dev/null +++ b/signaling-server/node_modules/redis/.npmignore @@ -0,0 +1,8 @@ +examples/ +benches/ +test.js +diff_multi_bench_output.js +generate_commands.js +multi_bench.js +test-unref.js +changelog.md diff --git a/signaling-server/node_modules/redis/README.md b/signaling-server/node_modules/redis/README.md new file mode 100644 index 0000000..830cb57 --- /dev/null +++ b/signaling-server/node_modules/redis/README.md @@ -0,0 +1,744 @@ +redis - a node.js redis client +=========================== + +This is a complete Redis client for node.js. It supports all Redis commands, including many recently added commands like EVAL from +experimental Redis server branches. + + +Install with: + + npm install redis + +Pieter Noordhuis has provided a binding to the official `hiredis` C library, which is non-blocking and fast. To use `hiredis`, do: + + npm install hiredis redis + +If `hiredis` is installed, `node_redis` will use it by default. Otherwise, a pure JavaScript parser will be used. + +If you use `hiredis`, be sure to rebuild it whenever you upgrade your version of node. There are mysterious failures that can +happen between node and native code modules after a node upgrade. + + +## Usage + +Simple example, included as `examples/simple.js`: + +```js + var redis = require("redis"), + client = redis.createClient(); + + // if you'd like to select database 3, instead of 0 (default), call + // client.select(3, function() { /* ... */ }); + + client.on("error", function (err) { + console.log("Error " + err); + }); + + client.set("string key", "string val", redis.print); + client.hset("hash key", "hashtest 1", "some value", redis.print); + client.hset(["hash key", "hashtest 2", "some other value"], redis.print); + client.hkeys("hash key", function (err, replies) { + console.log(replies.length + " replies:"); + replies.forEach(function (reply, i) { + console.log(" " + i + ": " + reply); + }); + client.quit(); + }); +``` + +This will display: + + mjr:~/work/node_redis (master)$ node example.js + Reply: OK + Reply: 0 + Reply: 0 + 2 replies: + 0: hashtest 1 + 1: hashtest 2 + mjr:~/work/node_redis (master)$ + + +## Performance + +Here are typical results of `multi_bench.js` which is similar to `redis-benchmark` from the Redis distribution. +It uses 50 concurrent connections with no pipelining. + +JavaScript parser: + + PING: 20000 ops 42283.30 ops/sec 0/5/1.182 + SET: 20000 ops 32948.93 ops/sec 1/7/1.515 + GET: 20000 ops 28694.40 ops/sec 0/9/1.740 + INCR: 20000 ops 39370.08 ops/sec 0/8/1.269 + LPUSH: 20000 ops 36429.87 ops/sec 0/8/1.370 + LRANGE (10 elements): 20000 ops 9891.20 ops/sec 1/9/5.048 + LRANGE (100 elements): 20000 ops 1384.56 ops/sec 10/91/36.072 + +hiredis parser: + + PING: 20000 ops 46189.38 ops/sec 1/4/1.082 + SET: 20000 ops 41237.11 ops/sec 0/6/1.210 + GET: 20000 ops 39682.54 ops/sec 1/7/1.257 + INCR: 20000 ops 40080.16 ops/sec 0/8/1.242 + LPUSH: 20000 ops 41152.26 ops/sec 0/3/1.212 + LRANGE (10 elements): 20000 ops 36563.07 ops/sec 1/8/1.363 + LRANGE (100 elements): 20000 ops 21834.06 ops/sec 0/9/2.287 + +The performance of `node_redis` improves dramatically with pipelining, which happens automatically in most normal programs. + + +### Sending Commands + +Each Redis command is exposed as a function on the `client` object. +All functions take either an `args` Array plus optional `callback` Function or +a variable number of individual arguments followed by an optional callback. +Here is an example of passing an array of arguments and a callback: + + client.mset(["test keys 1", "test val 1", "test keys 2", "test val 2"], function (err, res) {}); + +Here is that same call in the second style: + + client.mset("test keys 1", "test val 1", "test keys 2", "test val 2", function (err, res) {}); + +Note that in either form the `callback` is optional: + + client.set("some key", "some val"); + client.set(["some other key", "some val"]); + +If the key is missing, reply will be null (probably): + + client.get("missingkey", function(err, reply) { + // reply is null when the key is missing + console.log(reply); + }); + +For a list of Redis commands, see [Redis Command Reference](http://redis.io/commands) + +The commands can be specified in uppercase or lowercase for convenience. `client.get()` is the same as `client.GET()`. + +Minimal parsing is done on the replies. Commands that return a single line reply return JavaScript Strings, +integer replies return JavaScript Numbers, "bulk" replies return node Buffers, and "multi bulk" replies return a +JavaScript Array of node Buffers. `HGETALL` returns an Object with Buffers keyed by the hash keys. + +# API + +## Connection Events + +`client` will emit some events about the state of the connection to the Redis server. + +### "ready" + +`client` will emit `ready` a connection is established to the Redis server and the server reports +that it is ready to receive commands. Commands issued before the `ready` event are queued, +then replayed just before this event is emitted. + +### "connect" + +`client` will emit `connect` at the same time as it emits `ready` unless `client.options.no_ready_check` +is set. If this options is set, `connect` will be emitted when the stream is connected, and then +you are free to try to send commands. + +### "error" + +`client` will emit `error` when encountering an error connecting to the Redis server. + +Note that "error" is a special event type in node. If there are no listeners for an +"error" event, node will exit. This is usually what you want, but it can lead to some +cryptic error messages like this: + + mjr:~/work/node_redis (master)$ node example.js + + node.js:50 + throw e; + ^ + Error: ECONNREFUSED, Connection refused + at IOWatcher.callback (net:870:22) + at node.js:607:9 + +Not very useful in diagnosing the problem, but if your program isn't ready to handle this, +it is probably the right thing to just exit. + +`client` will also emit `error` if an exception is thrown inside of `node_redis` for whatever reason. +It would be nice to distinguish these two cases. + +### "end" + +`client` will emit `end` when an established Redis server connection has closed. + +### "drain" + +`client` will emit `drain` when the TCP connection to the Redis server has been buffering, but is now +writable. This event can be used to stream commands in to Redis and adapt to backpressure. Right now, +you need to check `client.command_queue.length` to decide when to reduce your send rate. Then you can +resume sending when you get `drain`. + +### "idle" + +`client` will emit `idle` when there are no outstanding commands that are awaiting a response. + +## redis.createClient() + +### overloading +* redis.createClient() = redis.createClient(6379, '127.0.0.1', {}) +* redis.createClient(options) = redis.createClient(6379, '127.0.0.1', options) +* redis.createClient(unix_socket, options) +* redis.createClient(port, host, options) + +If you have `redis-server` running on the same computer as node, then the defaults for +port and host are probably fine. `options` in an object with the following possible properties: + +* `parser`: which Redis protocol reply parser to use. Defaults to `hiredis` if that module is installed. +This may also be set to `javascript`. +* `return_buffers`: defaults to `false`. If set to `true`, then all replies will be sent to callbacks as node Buffer +objects instead of JavaScript Strings. +* `detect_buffers`: default to `false`. If set to `true`, then replies will be sent to callbacks as node Buffer objects +if any of the input arguments to the original command were Buffer objects. +This option lets you switch between Buffers and Strings on a per-command basis, whereas `return_buffers` applies to +every command on a client. +* `socket_nodelay`: defaults to `true`. Whether to call setNoDelay() on the TCP stream, which disables the +Nagle algorithm on the underlying socket. Setting this option to `false` can result in additional throughput at the +cost of more latency. Most applications will want this set to `true`. +* `socket_keepalive` defaults to `true`. Whether the keep-alive functionality is enabled on the underlying socket. +* `no_ready_check`: defaults to `false`. When a connection is established to the Redis server, the server might still +be loading the database from disk. While loading, the server not respond to any commands. To work around this, +`node_redis` has a "ready check" which sends the `INFO` command to the server. The response from the `INFO` command +indicates whether the server is ready for more commands. When ready, `node_redis` emits a `ready` event. +Setting `no_ready_check` to `true` will inhibit this check. +* `enable_offline_queue`: defaults to `true`. By default, if there is no active +connection to the redis server, commands are added to a queue and are executed +once the connection has been established. Setting `enable_offline_queue` to +`false` will disable this feature and the callback will be execute immediately +with an error, or an error will be thrown if no callback is specified. +* `retry_max_delay`: defaults to `null`. By default every time the client tries to connect and fails time before +reconnection (delay) almost doubles. This delay normally grows infinitely, but setting `retry_max_delay` limits delay +to maximum value, provided in milliseconds. +* `connect_timeout` defaults to `false`. By default client will try reconnecting until connected. Setting `connect_timeout` +limits total time for client to reconnect. Value is provided in milliseconds and is counted once the disconnect occured. +* `max_attempts` defaults to `null`. By default client will try reconnecting until connected. Setting `max_attempts` +limits total amount of reconnects. +* `auth_pass` defaults to `null`. By default client will try connecting without auth. If set, client will run redis auth command on connect. +* `family` defaults to `IPv4`. The client connects in IPv4 if not specified or if the DNS resolution returns an IPv4 address. +You can force an IPv6 if you set the family to 'IPv6'. See nodejs net or dns modules how to use the family type. + +```js + var redis = require("redis"), + client = redis.createClient({detect_buffers: true}); + + client.set("foo_rand000000000000", "OK"); + + // This will return a JavaScript String + client.get("foo_rand000000000000", function (err, reply) { + console.log(reply.toString()); // Will print `OK` + }); + + // This will return a Buffer since original key is specified as a Buffer + client.get(new Buffer("foo_rand000000000000"), function (err, reply) { + console.log(reply.toString()); // Will print `<Buffer 4f 4b>` + }); + client.end(); +``` + +`createClient()` returns a `RedisClient` object that is named `client` in all of the examples here. + + +## client.auth(password, callback) + +When connecting to Redis servers that require authentication, the `AUTH` command must be sent as the +first command after connecting. This can be tricky to coordinate with reconnections, the ready check, +etc. To make this easier, `client.auth()` stashes `password` and will send it after each connection, +including reconnections. `callback` is invoked only once, after the response to the very first +`AUTH` command sent. +NOTE: Your call to `client.auth()` should not be inside the ready handler. If +you are doing this wrong, `client` will emit an error that looks +something like this `Error: Ready check failed: ERR operation not permitted`. + +## client.end() + +Forcibly close the connection to the Redis server. Note that this does not wait until all replies have been parsed. +If you want to exit cleanly, call `client.quit()` to send the `QUIT` command after you have handled all replies. + +This example closes the connection to the Redis server before the replies have been read. You probably don't +want to do this: + +```js + var redis = require("redis"), + client = redis.createClient(); + + client.set("foo_rand000000000000", "some fantastic value"); + client.get("foo_rand000000000000", function (err, reply) { + console.log(reply.toString()); + }); + client.end(); +``` + +`client.end()` is useful for timeout cases where something is stuck or taking too long and you want +to start over. + +## client.unref() + +Call `unref()` on the underlying socket connection to the Redis server, allowing the program to exit once no more commands are pending. + +This is an **experimental** feature, and only supports a subset of the Redis protocol. Any commands where client state is saved on the Redis server, e.g. `*SUBSCRIBE` or the blocking `BL*` commands will *NOT* work with `.unref()`. + +```js +var redis = require("redis") +var client = redis.createClient() + +/* + Calling unref() will allow this program to exit immediately after the get command finishes. Otherwise the client would hang as long as the client-server connection is alive. +*/ +client.unref() +client.get("foo", function (err, value){ + if (err) throw(err) + console.log(value) +}) +``` + +## Friendlier hash commands + +Most Redis commands take a single String or an Array of Strings as arguments, and replies are sent back as a single String or an Array of Strings. +When dealing with hash values, there are a couple of useful exceptions to this. + +### client.hgetall(hash) + +The reply from an HGETALL command will be converted into a JavaScript Object by `node_redis`. That way you can interact +with the responses using JavaScript syntax. + +Example: + + client.hmset("hosts", "mjr", "1", "another", "23", "home", "1234"); + client.hgetall("hosts", function (err, obj) { + console.dir(obj); + }); + +Output: + + { mjr: '1', another: '23', home: '1234' } + +### client.hmset(hash, obj, [callback]) + +Multiple values in a hash can be set by supplying an object: + + client.HMSET(key2, { + "0123456789": "abcdefghij", // NOTE: key and value will be coerced to strings + "some manner of key": "a type of value" + }); + +The properties and values of this Object will be set as keys and values in the Redis hash. + +### client.hmset(hash, key1, val1, ... keyn, valn, [callback]) + +Multiple values may also be set by supplying a list: + + client.HMSET(key1, "0123456789", "abcdefghij", "some manner of key", "a type of value"); + + +## Publish / Subscribe + +Here is a simple example of the API for publish / subscribe. This program opens two +client connections, subscribes to a channel on one of them, and publishes to that +channel on the other: + +```js + var redis = require("redis"), + client1 = redis.createClient(), client2 = redis.createClient(), + msg_count = 0; + + client1.on("subscribe", function (channel, count) { + client2.publish("a nice channel", "I am sending a message."); + client2.publish("a nice channel", "I am sending a second message."); + client2.publish("a nice channel", "I am sending my last message."); + }); + + client1.on("message", function (channel, message) { + console.log("client1 channel " + channel + ": " + message); + msg_count += 1; + if (msg_count === 3) { + client1.unsubscribe(); + client1.end(); + client2.end(); + } + }); + + client1.incr("did a thing"); + client1.subscribe("a nice channel"); +``` + +When a client issues a `SUBSCRIBE` or `PSUBSCRIBE`, that connection is put into a "subscriber" mode. +At that point, only commands that modify the subscription set are valid. When the subscription +set is empty, the connection is put back into regular mode. + +If you need to send regular commands to Redis while in subscriber mode, just open another connection. + +## Subscriber Events + +If a client has subscriptions active, it may emit these events: + +### "message" (channel, message) + +Client will emit `message` for every message received that matches an active subscription. +Listeners are passed the channel name as `channel` and the message Buffer as `message`. + +### "pmessage" (pattern, channel, message) + +Client will emit `pmessage` for every message received that matches an active subscription pattern. +Listeners are passed the original pattern used with `PSUBSCRIBE` as `pattern`, the sending channel +name as `channel`, and the message Buffer as `message`. + +### "subscribe" (channel, count) + +Client will emit `subscribe` in response to a `SUBSCRIBE` command. Listeners are passed the +channel name as `channel` and the new count of subscriptions for this client as `count`. + +### "psubscribe" (pattern, count) + +Client will emit `psubscribe` in response to a `PSUBSCRIBE` command. Listeners are passed the +original pattern as `pattern`, and the new count of subscriptions for this client as `count`. + +### "unsubscribe" (channel, count) + +Client will emit `unsubscribe` in response to a `UNSUBSCRIBE` command. Listeners are passed the +channel name as `channel` and the new count of subscriptions for this client as `count`. When +`count` is 0, this client has left subscriber mode and no more subscriber events will be emitted. + +### "punsubscribe" (pattern, count) + +Client will emit `punsubscribe` in response to a `PUNSUBSCRIBE` command. Listeners are passed the +channel name as `channel` and the new count of subscriptions for this client as `count`. When +`count` is 0, this client has left subscriber mode and no more subscriber events will be emitted. + +## client.multi([commands]) + +`MULTI` commands are queued up until an `EXEC` is issued, and then all commands are run atomically by +Redis. The interface in `node_redis` is to return an individual `Multi` object by calling `client.multi()`. + +```js + var redis = require("./index"), + client = redis.createClient(), set_size = 20; + + client.sadd("bigset", "a member"); + client.sadd("bigset", "another member"); + + while (set_size > 0) { + client.sadd("bigset", "member " + set_size); + set_size -= 1; + } + + // multi chain with an individual callback + client.multi() + .scard("bigset") + .smembers("bigset") + .keys("*", function (err, replies) { + // NOTE: code in this callback is NOT atomic + // this only happens after the the .exec call finishes. + client.mget(replies, redis.print); + }) + .dbsize() + .exec(function (err, replies) { + console.log("MULTI got " + replies.length + " replies"); + replies.forEach(function (reply, index) { + console.log("Reply " + index + ": " + reply.toString()); + }); + }); +``` + +### Multi.exec( callback ) + +`client.multi()` is a constructor that returns a `Multi` object. `Multi` objects share all of the +same command methods as `client` objects do. Commands are queued up inside the `Multi` object +until `Multi.exec()` is invoked. + +The `callback` of `.exec()` will get invoked with two arguments: + +* `err` **type:** `null | Array` err is either null or an array of Error Objects corresponding the the sequence the commands where chained. The last item of the array will always be an `EXECABORT` type of error originating from the `.exec()` itself. +* `results` **type:** `null | Array` results is an array of responses corresponding the the sequence the commands where chained. + +You can either chain together `MULTI` commands as in the above example, or you can queue individual +commands while still sending regular client command as in this example: + +```js + var redis = require("redis"), + client = redis.createClient(), multi; + + // start a separate multi command queue + multi = client.multi(); + multi.incr("incr thing", redis.print); + multi.incr("incr other thing", redis.print); + + // runs immediately + client.mset("incr thing", 100, "incr other thing", 1, redis.print); + + // drains multi queue and runs atomically + multi.exec(function (err, replies) { + console.log(replies); // 101, 2 + }); + + // you can re-run the same transaction if you like + multi.exec(function (err, replies) { + console.log(replies); // 102, 3 + client.quit(); + }); +``` + +In addition to adding commands to the `MULTI` queue individually, you can also pass an array +of commands and arguments to the constructor: + +```js + var redis = require("redis"), + client = redis.createClient(), multi; + + client.multi([ + ["mget", "multifoo", "multibar", redis.print], + ["incr", "multifoo"], + ["incr", "multibar"] + ]).exec(function (err, replies) { + console.log(replies); + }); +``` + + +## Monitor mode + +Redis supports the `MONITOR` command, which lets you see all commands received by the Redis server +across all client connections, including from other client libraries and other computers. + +After you send the `MONITOR` command, no other commands are valid on that connection. `node_redis` +will emit a `monitor` event for every new monitor message that comes across. The callback for the +`monitor` event takes a timestamp from the Redis server and an array of command arguments. + +Here is a simple example: + +```js + var client = require("redis").createClient(), + util = require("util"); + + client.monitor(function (err, res) { + console.log("Entering monitoring mode."); + }); + + client.on("monitor", function (time, args) { + console.log(time + ": " + util.inspect(args)); + }); +``` + +# Extras + +Some other things you might like to know about. + +## client.server_info + +After the ready probe completes, the results from the INFO command are saved in the `client.server_info` +object. + +The `versions` key contains an array of the elements of the version string for easy comparison. + + > client.server_info.redis_version + '2.3.0' + > client.server_info.versions + [ 2, 3, 0 ] + +## redis.print() + +A handy callback function for displaying return values when testing. Example: + +```js + var redis = require("redis"), + client = redis.createClient(); + + client.on("connect", function () { + client.set("foo_rand000000000000", "some fantastic value", redis.print); + client.get("foo_rand000000000000", redis.print); + }); +``` + +This will print: + + Reply: OK + Reply: some fantastic value + +Note that this program will not exit cleanly because the client is still connected. + +## redis.debug_mode + +Boolean to enable debug mode and protocol tracing. + +```js + var redis = require("redis"), + client = redis.createClient(); + + redis.debug_mode = true; + + client.on("connect", function () { + client.set("foo_rand000000000000", "some fantastic value"); + }); +``` + +This will display: + + mjr:~/work/node_redis (master)$ node ~/example.js + send command: *3 + $3 + SET + $20 + foo_rand000000000000 + $20 + some fantastic value + + on_data: +OK + +`send command` is data sent into Redis and `on_data` is data received from Redis. + +## Multi-word commands + +To execute redis multi-word commands like `SCRIPT LOAD` or `CLIENT LIST` pass +the second word as first parameter: + + client.script('load', 'return 1'); + client.multi().script('load', 'return 1').exec(...); + client.multi([['script', 'load', 'return 1']]).exec(...); + +## client.send_command(command_name, args, callback) + +Used internally to send commands to Redis. For convenience, nearly all commands that are published on the Redis +Wiki have been added to the `client` object. However, if I missed any, or if new commands are introduced before +this library is updated, you can use `send_command()` to send arbitrary commands to Redis. + +All commands are sent as multi-bulk commands. `args` can either be an Array of arguments, or omitted. + +## client.connected + +Boolean tracking the state of the connection to the Redis server. + +## client.command_queue.length + +The number of commands that have been sent to the Redis server but not yet replied to. You can use this to +enforce some kind of maximum queue depth for commands while connected. + +Don't mess with `client.command_queue` though unless you really know what you are doing. + +## client.offline_queue.length + +The number of commands that have been queued up for a future connection. You can use this to enforce +some kind of maximum queue depth for pre-connection commands. + +## client.retry_delay + +Current delay in milliseconds before a connection retry will be attempted. This starts at `250`. + +## client.retry_backoff + +Multiplier for future retry timeouts. This should be larger than 1 to add more time between retries. +Defaults to 1.7. The default initial connection retry is 250, so the second retry will be 425, followed by 723.5, etc. + +### Commands with Optional and Keyword arguments + +This applies to anything that uses an optional `[WITHSCORES]` or `[LIMIT offset count]` in the [redis.io/commands](http://redis.io/commands) documentation. + +Example: +```js +var args = [ 'myzset', 1, 'one', 2, 'two', 3, 'three', 99, 'ninety-nine' ]; +client.zadd(args, function (err, response) { + if (err) throw err; + console.log('added '+response+' items.'); + + // -Infinity and +Infinity also work + var args1 = [ 'myzset', '+inf', '-inf' ]; + client.zrevrangebyscore(args1, function (err, response) { + if (err) throw err; + console.log('example1', response); + // write your code here + }); + + var max = 3, min = 1, offset = 1, count = 2; + var args2 = [ 'myzset', max, min, 'WITHSCORES', 'LIMIT', offset, count ]; + client.zrevrangebyscore(args2, function (err, response) { + if (err) throw err; + console.log('example2', response); + // write your code here + }); +}); +``` + +## TODO + +Better tests for auth, disconnect/reconnect, and all combinations thereof. + +Stream large set/get values into and out of Redis. Otherwise the entire value must be in node's memory. + +Performance can be better for very large values. + +I think there are more performance improvements left in there for smaller values, especially for large lists of small values. + +## How to Contribute +- open a pull request and then wait for feedback (if + [DTrejo](http://github.com/dtrejo) does not get back to you within 2 days, + comment again with indignation!) + +## Contributors +Some people have have added features and fixed bugs in `node_redis` other than me. + +Ordered by date of first contribution. +[Auto-generated](http://github.com/dtrejo/node-authors) on Wed Jul 25 2012 19:14:59 GMT-0700 (PDT). + +- [Matt Ranney aka `mranney`](https://github.com/mranney) +- [Tim-Smart aka `tim-smart`](https://github.com/tim-smart) +- [Tj Holowaychuk aka `visionmedia`](https://github.com/visionmedia) +- [rick aka `technoweenie`](https://github.com/technoweenie) +- [Orion Henry aka `orionz`](https://github.com/orionz) +- [Aivo Paas aka `aivopaas`](https://github.com/aivopaas) +- [Hank Sims aka `hanksims`](https://github.com/hanksims) +- [Paul Carey aka `paulcarey`](https://github.com/paulcarey) +- [Pieter Noordhuis aka `pietern`](https://github.com/pietern) +- [nithesh aka `nithesh`](https://github.com/nithesh) +- [Andy Ray aka `andy2ray`](https://github.com/andy2ray) +- [unknown aka `unknowdna`](https://github.com/unknowdna) +- [Dave Hoover aka `redsquirrel`](https://github.com/redsquirrel) +- [Vladimir Dronnikov aka `dvv`](https://github.com/dvv) +- [Umair Siddique aka `umairsiddique`](https://github.com/umairsiddique) +- [Louis-Philippe Perron aka `lp`](https://github.com/lp) +- [Mark Dawson aka `markdaws`](https://github.com/markdaws) +- [Ian Babrou aka `bobrik`](https://github.com/bobrik) +- [Felix Geisendörfer aka `felixge`](https://github.com/felixge) +- [Jean-Hugues Pinson aka `undefined`](https://github.com/undefined) +- [Maksim Lin aka `maks`](https://github.com/maks) +- [Owen Smith aka `orls`](https://github.com/orls) +- [Zachary Scott aka `zzak`](https://github.com/zzak) +- [TEHEK Firefox aka `TEHEK`](https://github.com/TEHEK) +- [Isaac Z. Schlueter aka `isaacs`](https://github.com/isaacs) +- [David Trejo aka `DTrejo`](https://github.com/DTrejo) +- [Brian Noguchi aka `bnoguchi`](https://github.com/bnoguchi) +- [Philip Tellis aka `bluesmoon`](https://github.com/bluesmoon) +- [Marcus Westin aka `marcuswestin2`](https://github.com/marcuswestin2) +- [Jed Schmidt aka `jed`](https://github.com/jed) +- [Dave Peticolas aka `jdavisp3`](https://github.com/jdavisp3) +- [Trae Robrock aka `trobrock`](https://github.com/trobrock) +- [Shankar Karuppiah aka `shankar0306`](https://github.com/shankar0306) +- [Ignacio Burgueño aka `ignacio`](https://github.com/ignacio) + +Thanks. + +## LICENSE - "MIT License" + +Copyright (c) 2010 Matthew Ranney, http://ranney.com/ + +Permission is hereby granted, free of charge, to any person +obtaining a copy of this software and associated documentation +files (the "Software"), to deal in the Software without +restriction, including without limitation the rights to use, +copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following +conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES +OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT +HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + + diff --git a/signaling-server/node_modules/redis/connection_breaker.js b/signaling-server/node_modules/redis/connection_breaker.js new file mode 100644 index 0000000..489f5d5 --- /dev/null +++ b/signaling-server/node_modules/redis/connection_breaker.js @@ -0,0 +1,80 @@ +var net = require('net'); + +var proxyPort = 6379; +var counter = 0; + +function breaker(conn) { + conn.end(); + conn.destroy(); +} + +var server = net.createServer(function(conn) { + counter++; + var proxyConn = net.createConnection({ + port: proxyPort + }); + conn.pipe(proxyConn); + proxyConn.pipe(conn); + proxyConn.on('end', function() { + conn.end(); + }); + conn.on('end', function() { + proxyConn.end(); + }); + conn.on('close', function() { + proxyConn.end(); + }); + proxyConn.on('close', function() { + conn.end(); + }); + proxyConn.on('error', function() { + conn.end(); + }); + conn.on('error', function() { + proxyConn.end(); + }); + + setTimeout(breaker.bind(null, conn), Math.floor(Math.random() * 2000)); +}); +server.listen(6479); + +var redis = require('./'); + +var port = 6479; + +var client = redis.createClient(6479, 'localhost'); + +function iter() { + var k = "k" + Math.floor(Math.random() * 10); + var coinflip = Math.random() > 0.5; + if (coinflip) { + client.set(k, k, function(err, resp) { + if (!err && resp !== "OK") { + console.log("Unexpected set response " + resp); + } + }); + } else { + client.get(k, function(err, resp) { + if (!err) { + if (k !== resp) { + console.log("Key response mismatch: " + k + " " + resp); + } + } + }); + } +} + +function iters() { + for (var i = 0; i < 100; ++i) { + iter(); + } + setTimeout(iters, 10); +} + +client.on("connect", function () { + iters(); +}); + +client.on("error", function (err) { + console.log("Client error " + err); +}); diff --git a/signaling-server/node_modules/redis/index.js b/signaling-server/node_modules/redis/index.js new file mode 100644 index 0000000..7ec7477 --- /dev/null +++ b/signaling-server/node_modules/redis/index.js @@ -0,0 +1,1284 @@ +/*global Buffer require exports console setTimeout */ + +var net = require("net"), + util = require("./lib/util"), + Queue = require("./lib/queue"), + to_array = require("./lib/to_array"), + events = require("events"), + crypto = require("crypto"), + parsers = [], commands, + connection_id = 0, + default_port = 6379, + default_host = "127.0.0.1"; + +// can set this to true to enable for all connections +exports.debug_mode = false; + +var arraySlice = Array.prototype.slice +function trace() { + if (!exports.debug_mode) return; + console.log.apply(null, arraySlice.call(arguments)) +} + +// hiredis might not be installed +try { + require("./lib/parser/hiredis"); + parsers.push(require("./lib/parser/hiredis")); +} catch (err) { + if (exports.debug_mode) { + console.warn("hiredis parser not installed."); + } +} + +parsers.push(require("./lib/parser/javascript")); + +function RedisClient(stream, options) { + this.stream = stream; + this.options = options = options || {}; + + this.connection_id = ++connection_id; + this.connected = false; + this.ready = false; + this.connections = 0; + if (this.options.socket_nodelay === undefined) { + this.options.socket_nodelay = true; + } + if (this.options.socket_keepalive === undefined) { + this.options.socket_keepalive = true; + } + this.should_buffer = false; + this.command_queue_high_water = this.options.command_queue_high_water || 1000; + this.command_queue_low_water = this.options.command_queue_low_water || 0; + this.max_attempts = null; + if (options.max_attempts && !isNaN(options.max_attempts) && options.max_attempts > 0) { + this.max_attempts = +options.max_attempts; + } + this.command_queue = new Queue(); // holds sent commands to de-pipeline them + this.offline_queue = new Queue(); // holds commands issued but not able to be sent + this.commands_sent = 0; + this.connect_timeout = false; + if (options.connect_timeout && !isNaN(options.connect_timeout) && options.connect_timeout > 0) { + this.connect_timeout = +options.connect_timeout; + } + this.enable_offline_queue = true; + if (typeof this.options.enable_offline_queue === "boolean") { + this.enable_offline_queue = this.options.enable_offline_queue; + } + this.retry_max_delay = null; + if (options.retry_max_delay !== undefined && !isNaN(options.retry_max_delay) && options.retry_max_delay > 0) { + this.retry_max_delay = options.retry_max_delay; + } + + this.initialize_retry_vars(); + this.pub_sub_mode = false; + this.subscription_set = {}; + this.monitoring = false; + this.closing = false; + this.server_info = {}; + this.auth_pass = null; + if (options.auth_pass !== undefined) { + this.auth_pass = options.auth_pass; + } + this.parser_module = null; + this.selected_db = null; // save the selected db here, used when reconnecting + + this.old_state = null; + + this.install_stream_listeners(); + + events.EventEmitter.call(this); +} +util.inherits(RedisClient, events.EventEmitter); +exports.RedisClient = RedisClient; + +RedisClient.prototype.install_stream_listeners = function() { + var self = this; + + this.stream.on("connect", function () { + self.on_connect(); + }); + + this.stream.on("data", function (buffer_from_socket) { + self.on_data(buffer_from_socket); + }); + + this.stream.on("error", function (msg) { + self.on_error(msg.message); + }); + + this.stream.on("close", function () { + self.connection_gone("close"); + }); + + this.stream.on("end", function () { + self.connection_gone("end"); + }); + + this.stream.on("drain", function () { + self.should_buffer = false; + self.emit("drain"); + }); +}; + +RedisClient.prototype.initialize_retry_vars = function () { + this.retry_timer = null; + this.retry_totaltime = 0; + this.retry_delay = 150; + this.retry_backoff = 1.7; + this.attempts = 1; +}; + +RedisClient.prototype.unref = function () { + trace("User requesting to unref the connection"); + if (this.connected) { + trace("unref'ing the socket connection"); + this.stream.unref(); + } + else { + trace("Not connected yet, will unref later"); + this.once("connect", function () { + this.unref(); + }) + } +}; + +// flush offline_queue and command_queue, erroring any items with a callback first +RedisClient.prototype.flush_and_error = function (message) { + var command_obj, error; + + error = new Error(message); + + while (this.offline_queue.length > 0) { + command_obj = this.offline_queue.shift(); + if (typeof command_obj.callback === "function") { + try { + command_obj.callback(error); + } catch (callback_err) { + process.nextTick(function () { + throw callback_err; + }); + } + } + } + this.offline_queue = new Queue(); + + while (this.command_queue.length > 0) { + command_obj = this.command_queue.shift(); + if (typeof command_obj.callback === "function") { + try { + command_obj.callback(error); + } catch (callback_err) { + process.nextTick(function () { + throw callback_err; + }); + } + } + } + this.command_queue = new Queue(); +}; + +RedisClient.prototype.on_error = function (msg) { + var message = "Redis connection to " + this.address + " failed - " + msg; + + if (this.closing) { + return; + } + + if (exports.debug_mode) { + console.warn(message); + } + + this.flush_and_error(message); + + this.connected = false; + this.ready = false; + + this.emit("error", new Error(message)); + // "error" events get turned into exceptions if they aren't listened for. If the user handled this error + // then we should try to reconnect. + this.connection_gone("error"); +}; + +RedisClient.prototype.do_auth = function () { + var self = this; + + if (exports.debug_mode) { + console.log("Sending auth to " + self.address + " id " + self.connection_id); + } + self.send_anyway = true; + self.send_command("auth", [this.auth_pass], function (err, res) { + if (err) { + if (err.toString().match("LOADING")) { + // if redis is still loading the db, it will not authenticate and everything else will fail + console.log("Redis still loading, trying to authenticate later"); + setTimeout(function () { + self.do_auth(); + }, 2000); // TODO - magic number alert + return; + } else if (err.toString().match("no password is set")) { + console.log("Warning: Redis server does not require a password, but a password was supplied.") + err = null; + res = "OK"; + } else { + return self.emit("error", new Error("Auth error: " + err.message)); + } + } + if (res.toString() !== "OK") { + return self.emit("error", new Error("Auth failed: " + res.toString())); + } + if (exports.debug_mode) { + console.log("Auth succeeded " + self.address + " id " + self.connection_id); + } + if (self.auth_callback) { + self.auth_callback(err, res); + self.auth_callback = null; + } + + // now we are really connected + self.emit("connect"); + self.initialize_retry_vars(); + + if (self.options.no_ready_check) { + self.on_ready(); + } else { + self.ready_check(); + } + }); + self.send_anyway = false; +}; + +RedisClient.prototype.on_connect = function () { + if (exports.debug_mode) { + console.log("Stream connected " + this.address + " id " + this.connection_id); + } + + this.connected = true; + this.ready = false; + this.connections += 1; + this.command_queue = new Queue(); + this.emitted_end = false; + if (this.options.socket_nodelay) { + this.stream.setNoDelay(); + } + this.stream.setKeepAlive(this.options.socket_keepalive); + this.stream.setTimeout(0); + + this.init_parser(); + + if (this.auth_pass) { + this.do_auth(); + } else { + this.emit("connect"); + this.initialize_retry_vars(); + + if (this.options.no_ready_check) { + this.on_ready(); + } else { + this.ready_check(); + } + } +}; + +RedisClient.prototype.init_parser = function () { + var self = this; + + if (this.options.parser) { + if (! parsers.some(function (parser) { + if (parser.name === self.options.parser) { + self.parser_module = parser; + if (exports.debug_mode) { + console.log("Using parser module: " + self.parser_module.name); + } + return true; + } + })) { + throw new Error("Couldn't find named parser " + self.options.parser + " on this system"); + } + } else { + if (exports.debug_mode) { + console.log("Using default parser module: " + parsers[0].name); + } + this.parser_module = parsers[0]; + } + + this.parser_module.debug_mode = exports.debug_mode; + + // return_buffers sends back Buffers from parser to callback. detect_buffers sends back Buffers from parser, but + // converts to Strings if the input arguments are not Buffers. + this.reply_parser = new this.parser_module.Parser({ + return_buffers: self.options.return_buffers || self.options.detect_buffers || false + }); + + // "reply error" is an error sent back by Redis + this.reply_parser.on("reply error", function (reply) { + if (reply instanceof Error) { + self.return_error(reply); + } else { + self.return_error(new Error(reply)); + } + }); + this.reply_parser.on("reply", function (reply) { + self.return_reply(reply); + }); + // "error" is bad. Somehow the parser got confused. It'll try to reset and continue. + this.reply_parser.on("error", function (err) { + self.emit("error", new Error("Redis reply parser error: " + err.stack)); + }); +}; + +RedisClient.prototype.on_ready = function () { + var self = this; + + this.ready = true; + + if (this.old_state !== null) { + this.monitoring = this.old_state.monitoring; + this.pub_sub_mode = this.old_state.pub_sub_mode; + this.selected_db = this.old_state.selected_db; + this.old_state = null; + } + + // magically restore any modal commands from a previous connection + if (this.selected_db !== null) { + // this trick works if and only if the following send_command + // never goes into the offline queue + var pub_sub_mode = this.pub_sub_mode; + this.pub_sub_mode = false; + this.send_command('select', [this.selected_db]); + this.pub_sub_mode = pub_sub_mode; + } + if (this.pub_sub_mode === true) { + // only emit "ready" when all subscriptions were made again + var callback_count = 0; + var callback = function () { + callback_count--; + if (callback_count === 0) { + self.emit("ready"); + } + }; + Object.keys(this.subscription_set).forEach(function (key) { + var parts = key.split(" "); + if (exports.debug_mode) { + console.warn("sending pub/sub on_ready " + parts[0] + ", " + parts[1]); + } + callback_count++; + self.send_command(parts[0] + "scribe", [parts[1]], callback); + }); + return; + } else if (this.monitoring) { + this.send_command("monitor"); + } else { + this.send_offline_queue(); + } + this.emit("ready"); +}; + +RedisClient.prototype.on_info_cmd = function (err, res) { + var self = this, obj = {}, lines, retry_time; + + if (err) { + return self.emit("error", new Error("Ready check failed: " + err.message)); + } + + lines = res.toString().split("\r\n"); + + lines.forEach(function (line) { + var parts = line.split(':'); + if (parts[1]) { + obj[parts[0]] = parts[1]; + } + }); + + obj.versions = []; + if( obj.redis_version ){ + obj.redis_version.split('.').forEach(function (num) { + obj.versions.push(+num); + }); + } + + // expose info key/vals to users + this.server_info = obj; + + if (!obj.loading || (obj.loading && obj.loading === "0")) { + if (exports.debug_mode) { + console.log("Redis server ready."); + } + this.on_ready(); + } else { + retry_time = obj.loading_eta_seconds * 1000; + if (retry_time > 1000) { + retry_time = 1000; + } + if (exports.debug_mode) { + console.log("Redis server still loading, trying again in " + retry_time); + } + setTimeout(function () { + self.ready_check(); + }, retry_time); + } +}; + +RedisClient.prototype.ready_check = function () { + var self = this; + + if (exports.debug_mode) { + console.log("checking server ready state..."); + } + + this.send_anyway = true; // secret flag to send_command to send something even if not "ready" + this.info(function (err, res) { + self.on_info_cmd(err, res); + }); + this.send_anyway = false; +}; + +RedisClient.prototype.send_offline_queue = function () { + var command_obj, buffered_writes = 0; + + while (this.offline_queue.length > 0) { + command_obj = this.offline_queue.shift(); + if (exports.debug_mode) { + console.log("Sending offline command: " + command_obj.command); + } + buffered_writes += !this.send_command(command_obj.command, command_obj.args, command_obj.callback); + } + this.offline_queue = new Queue(); + // Even though items were shifted off, Queue backing store still uses memory until next add, so just get a new Queue + + if (!buffered_writes) { + this.should_buffer = false; + this.emit("drain"); + } +}; + +RedisClient.prototype.connection_gone = function (why) { + var self = this; + + // If a retry is already in progress, just let that happen + if (this.retry_timer) { + return; + } + + if (exports.debug_mode) { + console.warn("Redis connection is gone from " + why + " event."); + } + this.connected = false; + this.ready = false; + + if (this.old_state === null) { + var state = { + monitoring: this.monitoring, + pub_sub_mode: this.pub_sub_mode, + selected_db: this.selected_db + }; + this.old_state = state; + this.monitoring = false; + this.pub_sub_mode = false; + this.selected_db = null; + } + + // since we are collapsing end and close, users don't expect to be called twice + if (! this.emitted_end) { + this.emit("end"); + this.emitted_end = true; + } + + this.flush_and_error("Redis connection gone from " + why + " event."); + + // If this is a requested shutdown, then don't retry + if (this.closing) { + this.retry_timer = null; + if (exports.debug_mode) { + console.warn("connection ended from quit command, not retrying."); + } + return; + } + + var nextDelay = Math.floor(this.retry_delay * this.retry_backoff); + if (this.retry_max_delay !== null && nextDelay > this.retry_max_delay) { + this.retry_delay = this.retry_max_delay; + } else { + this.retry_delay = nextDelay; + } + + if (exports.debug_mode) { + console.log("Retry connection in " + this.retry_delay + " ms"); + } + + if (this.max_attempts && this.attempts >= this.max_attempts) { + this.retry_timer = null; + // TODO - some people need a "Redis is Broken mode" for future commands that errors immediately, and others + // want the program to exit. Right now, we just log, which doesn't really help in either case. + console.error("node_redis: Couldn't get Redis connection after " + this.max_attempts + " attempts."); + return; + } + + this.attempts += 1; + this.emit("reconnecting", { + delay: self.retry_delay, + attempt: self.attempts + }); + this.retry_timer = setTimeout(function () { + if (exports.debug_mode) { + console.log("Retrying connection..."); + } + + self.retry_totaltime += self.retry_delay; + + if (self.connect_timeout && self.retry_totaltime >= self.connect_timeout) { + self.retry_timer = null; + // TODO - engage Redis is Broken mode for future commands, or whatever + console.error("node_redis: Couldn't get Redis connection after " + self.retry_totaltime + "ms."); + return; + } + + self.stream = net.createConnection(self.connectionOption); + self.install_stream_listeners(); + self.retry_timer = null; + }, this.retry_delay); +}; + +RedisClient.prototype.on_data = function (data) { + if (exports.debug_mode) { + console.log("net read " + this.address + " id " + this.connection_id + ": " + data.toString()); + } + + try { + this.reply_parser.execute(data); + } catch (err) { + // This is an unexpected parser problem, an exception that came from the parser code itself. + // Parser should emit "error" events if it notices things are out of whack. + // Callbacks that throw exceptions will land in return_reply(), below. + // TODO - it might be nice to have a different "error" event for different types of errors + this.emit("error", err); + } +}; + +RedisClient.prototype.return_error = function (err) { + var command_obj = this.command_queue.shift(), queue_len = this.command_queue.getLength(); + + if (this.pub_sub_mode === false && queue_len === 0) { + this.command_queue = new Queue(); + this.emit("idle"); + } + if (this.should_buffer && queue_len <= this.command_queue_low_water) { + this.emit("drain"); + this.should_buffer = false; + } + + if (command_obj && typeof command_obj.callback === "function") { + try { + command_obj.callback(err); + } catch (callback_err) { + // if a callback throws an exception, re-throw it on a new stack so the parser can keep going + process.nextTick(function () { + throw callback_err; + }); + } + } else { + console.log("node_redis: no callback to send error: " + err.message); + // this will probably not make it anywhere useful, but we might as well throw + process.nextTick(function () { + throw err; + }); + } +}; + +// if a callback throws an exception, re-throw it on a new stack so the parser can keep going. +// if a domain is active, emit the error on the domain, which will serve the same function. +// put this try/catch in its own function because V8 doesn't optimize this well yet. +function try_callback(callback, reply) { + try { + callback(null, reply); + } catch (err) { + if (process.domain) { + var currDomain = process.domain; + currDomain.emit('error', err); + if (process.domain === currDomain) { + currDomain.exit(); + } + } else { + process.nextTick(function () { + throw err; + }); + } + } +} + +// hgetall converts its replies to an Object. If the reply is empty, null is returned. +function reply_to_object(reply) { + var obj = {}, j, jl, key, val; + + if (reply.length === 0) { + return null; + } + + for (j = 0, jl = reply.length; j < jl; j += 2) { + key = reply[j].toString('binary'); + val = reply[j + 1]; + obj[key] = val; + } + + return obj; +} + +function reply_to_strings(reply) { + var i; + + if (Buffer.isBuffer(reply)) { + return reply.toString(); + } + + if (Array.isArray(reply)) { + for (i = 0; i < reply.length; i++) { + if (reply[i] !== null && reply[i] !== undefined) { + reply[i] = reply[i].toString(); + } + } + return reply; + } + + return reply; +} + +RedisClient.prototype.return_reply = function (reply) { + var command_obj, len, type, timestamp, argindex, args, queue_len; + + // If the "reply" here is actually a message received asynchronously due to a + // pubsub subscription, don't pop the command queue as we'll only be consuming + // the head command prematurely. + if (Array.isArray(reply) && reply.length > 0 && reply[0]) { + type = reply[0].toString(); + } + + if (this.pub_sub_mode && (type == 'message' || type == 'pmessage')) { + trace("received pubsub message"); + } + else { + command_obj = this.command_queue.shift(); + } + + queue_len = this.command_queue.getLength(); + + if (this.pub_sub_mode === false && queue_len === 0) { + this.command_queue = new Queue(); // explicitly reclaim storage from old Queue + this.emit("idle"); + } + if (this.should_buffer && queue_len <= this.command_queue_low_water) { + this.emit("drain"); + this.should_buffer = false; + } + + if (command_obj && !command_obj.sub_command) { + if (typeof command_obj.callback === "function") { + if (this.options.detect_buffers && command_obj.buffer_args === false) { + // If detect_buffers option was specified, then the reply from the parser will be Buffers. + // If this command did not use Buffer arguments, then convert the reply to Strings here. + reply = reply_to_strings(reply); + } + + // TODO - confusing and error-prone that hgetall is special cased in two places + if (reply && 'hgetall' === command_obj.command.toLowerCase()) { + reply = reply_to_object(reply); + } + + try_callback(command_obj.callback, reply); + } else if (exports.debug_mode) { + console.log("no callback for reply: " + (reply && reply.toString && reply.toString())); + } + } else if (this.pub_sub_mode || (command_obj && command_obj.sub_command)) { + if (Array.isArray(reply)) { + type = reply[0].toString(); + + if (type === "message") { + this.emit("message", reply[1].toString(), reply[2]); // channel, message + } else if (type === "pmessage") { + this.emit("pmessage", reply[1].toString(), reply[2].toString(), reply[3]); // pattern, channel, message + } else if (type === "subscribe" || type === "unsubscribe" || type === "psubscribe" || type === "punsubscribe") { + if (reply[2] === 0) { + this.pub_sub_mode = false; + if (this.debug_mode) { + console.log("All subscriptions removed, exiting pub/sub mode"); + } + } else { + this.pub_sub_mode = true; + } + // subscribe commands take an optional callback and also emit an event, but only the first response is included in the callback + // TODO - document this or fix it so it works in a more obvious way + // reply[1] can be null + var reply1String = (reply[1] === null) ? null : reply[1].toString(); + if (command_obj && typeof command_obj.callback === "function") { + try_callback(command_obj.callback, reply1String); + } + this.emit(type, reply1String, reply[2]); // channel, count + } else { + throw new Error("subscriptions are active but got unknown reply type " + type); + } + } else if (! this.closing) { + throw new Error("subscriptions are active but got an invalid reply: " + reply); + } + } else if (this.monitoring) { + len = reply.indexOf(" "); + timestamp = reply.slice(0, len); + argindex = reply.indexOf('"'); + args = reply.slice(argindex + 1, -1).split('" "').map(function (elem) { + return elem.replace(/\\"/g, '"'); + }); + this.emit("monitor", timestamp, args); + } else { + throw new Error("node_redis command queue state error. If you can reproduce this, please report it."); + } +}; + +// This Command constructor is ever so slightly faster than using an object literal, but more importantly, using +// a named constructor helps it show up meaningfully in the V8 CPU profiler and in heap snapshots. +function Command(command, args, sub_command, buffer_args, callback) { + this.command = command; + this.args = args; + this.sub_command = sub_command; + this.buffer_args = buffer_args; + this.callback = callback; +} + +RedisClient.prototype.send_command = function (command, args, callback) { + var arg, command_obj, i, il, elem_count, buffer_args, stream = this.stream, command_str = "", buffered_writes = 0, last_arg_type, lcaseCommand; + + if (typeof command !== "string") { + throw new Error("First argument to send_command must be the command name string, not " + typeof command); + } + + if (Array.isArray(args)) { + if (typeof callback === "function") { + // probably the fastest way: + // client.command([arg1, arg2], cb); (straight passthrough) + // send_command(command, [arg1, arg2], cb); + } else if (! callback) { + // most people find this variable argument length form more convenient, but it uses arguments, which is slower + // client.command(arg1, arg2, cb); (wraps up arguments into an array) + // send_command(command, [arg1, arg2, cb]); + // client.command(arg1, arg2); (callback is optional) + // send_command(command, [arg1, arg2]); + // client.command(arg1, arg2, undefined); (callback is undefined) + // send_command(command, [arg1, arg2, undefined]); + last_arg_type = typeof args[args.length - 1]; + if (last_arg_type === "function" || last_arg_type === "undefined") { + callback = args.pop(); + } + } else { + throw new Error("send_command: last argument must be a callback or undefined"); + } + } else { + throw new Error("send_command: second argument must be an array"); + } + + if (callback && process.domain) callback = process.domain.bind(callback); + + // if the last argument is an array and command is sadd or srem, expand it out: + // client.sadd(arg1, [arg2, arg3, arg4], cb); + // converts to: + // client.sadd(arg1, arg2, arg3, arg4, cb); + lcaseCommand = command.toLowerCase(); + if ((lcaseCommand === 'sadd' || lcaseCommand === 'srem') && args.length > 0 && Array.isArray(args[args.length - 1])) { + args = args.slice(0, -1).concat(args[args.length - 1]); + } + + // if the value is undefined or null and command is set or setx, need not to send message to redis + if (command === 'set' || command === 'setex') { + if(args[args.length - 1] === undefined || args[args.length - 1] === null) { + var err = new Error('send_command: ' + command + ' value must not be undefined or null'); + return callback && callback(err); + } + } + + buffer_args = false; + for (i = 0, il = args.length, arg; i < il; i += 1) { + if (Buffer.isBuffer(args[i])) { + buffer_args = true; + } + } + + command_obj = new Command(command, args, false, buffer_args, callback); + + if ((!this.ready && !this.send_anyway) || !stream.writable) { + if (exports.debug_mode) { + if (!stream.writable) { + console.log("send command: stream is not writeable."); + } + } + + if (this.enable_offline_queue) { + if (exports.debug_mode) { + console.log("Queueing " + command + " for next server connection."); + } + this.offline_queue.push(command_obj); + this.should_buffer = true; + } else { + var not_writeable_error = new Error('send_command: stream not writeable. enable_offline_queue is false'); + if (command_obj.callback) { + command_obj.callback(not_writeable_error); + } else { + throw not_writeable_error; + } + } + + return false; + } + + if (command === "subscribe" || command === "psubscribe" || command === "unsubscribe" || command === "punsubscribe") { + this.pub_sub_command(command_obj); + } else if (command === "monitor") { + this.monitoring = true; + } else if (command === "quit") { + this.closing = true; + } else if (this.pub_sub_mode === true) { + throw new Error("Connection in subscriber mode, only subscriber commands may be used"); + } + this.command_queue.push(command_obj); + this.commands_sent += 1; + + elem_count = args.length + 1; + + // Always use "Multi bulk commands", but if passed any Buffer args, then do multiple writes, one for each arg. + // This means that using Buffers in commands is going to be slower, so use Strings if you don't already have a Buffer. + + command_str = "*" + elem_count + "\r\n$" + command.length + "\r\n" + command + "\r\n"; + + if (! buffer_args) { // Build up a string and send entire command in one write + for (i = 0, il = args.length, arg; i < il; i += 1) { + arg = args[i]; + if (typeof arg !== "string") { + arg = String(arg); + } + command_str += "$" + Buffer.byteLength(arg) + "\r\n" + arg + "\r\n"; + } + if (exports.debug_mode) { + console.log("send " + this.address + " id " + this.connection_id + ": " + command_str); + } + buffered_writes += !stream.write(command_str); + } else { + if (exports.debug_mode) { + console.log("send command (" + command_str + ") has Buffer arguments"); + } + buffered_writes += !stream.write(command_str); + + for (i = 0, il = args.length, arg; i < il; i += 1) { + arg = args[i]; + if (!(Buffer.isBuffer(arg) || arg instanceof String)) { + arg = String(arg); + } + + if (Buffer.isBuffer(arg)) { + if (arg.length === 0) { + if (exports.debug_mode) { + console.log("send_command: using empty string for 0 length buffer"); + } + buffered_writes += !stream.write("$0\r\n\r\n"); + } else { + buffered_writes += !stream.write("$" + arg.length + "\r\n"); + buffered_writes += !stream.write(arg); + buffered_writes += !stream.write("\r\n"); + if (exports.debug_mode) { + console.log("send_command: buffer send " + arg.length + " bytes"); + } + } + } else { + if (exports.debug_mode) { + console.log("send_command: string send " + Buffer.byteLength(arg) + " bytes: " + arg); + } + buffered_writes += !stream.write("$" + Buffer.byteLength(arg) + "\r\n" + arg + "\r\n"); + } + } + } + if (exports.debug_mode) { + console.log("send_command buffered_writes: " + buffered_writes, " should_buffer: " + this.should_buffer); + } + if (buffered_writes || this.command_queue.getLength() >= this.command_queue_high_water) { + this.should_buffer = true; + } + return !this.should_buffer; +}; + +RedisClient.prototype.pub_sub_command = function (command_obj) { + var i, key, command, args; + + if (this.pub_sub_mode === false && exports.debug_mode) { + console.log("Entering pub/sub mode from " + command_obj.command); + } + this.pub_sub_mode = true; + command_obj.sub_command = true; + + command = command_obj.command; + args = command_obj.args; + if (command === "subscribe" || command === "psubscribe") { + if (command === "subscribe") { + key = "sub"; + } else { + key = "psub"; + } + for (i = 0; i < args.length; i++) { + this.subscription_set[key + " " + args[i]] = true; + } + } else { + if (command === "unsubscribe") { + key = "sub"; + } else { + key = "psub"; + } + for (i = 0; i < args.length; i++) { + delete this.subscription_set[key + " " + args[i]]; + } + } +}; + +RedisClient.prototype.end = function () { + this.stream._events = {}; + + //clear retry_timer + if(this.retry_timer){ + clearTimeout(this.retry_timer); + this.retry_timer=null; + } + this.stream.on("error", function(){}); + + this.connected = false; + this.ready = false; + this.closing = true; + return this.stream.destroySoon(); +}; + +function Multi(client, args) { + this._client = client; + this.queue = [["MULTI"]]; + if (Array.isArray(args)) { + this.queue = this.queue.concat(args); + } +} + +exports.Multi = Multi; + +// take 2 arrays and return the union of their elements +function set_union(seta, setb) { + var obj = {}; + + seta.forEach(function (val) { + obj[val] = true; + }); + setb.forEach(function (val) { + obj[val] = true; + }); + return Object.keys(obj); +} + +// This static list of commands is updated from time to time. ./lib/commands.js can be updated with generate_commands.js +commands = set_union(["get", "set", "setnx", "setex", "append", "strlen", "del", "exists", "setbit", "getbit", "setrange", "getrange", "substr", + "incr", "decr", "mget", "rpush", "lpush", "rpushx", "lpushx", "linsert", "rpop", "lpop", "brpop", "brpoplpush", "blpop", "llen", "lindex", + "lset", "lrange", "ltrim", "lrem", "rpoplpush", "sadd", "srem", "smove", "sismember", "scard", "spop", "srandmember", "sinter", "sinterstore", + "sunion", "sunionstore", "sdiff", "sdiffstore", "smembers", "zadd", "zincrby", "zrem", "zremrangebyscore", "zremrangebyrank", "zunionstore", + "zinterstore", "zrange", "zrangebyscore", "zrevrangebyscore", "zcount", "zrevrange", "zcard", "zscore", "zrank", "zrevrank", "hset", "hsetnx", + "hget", "hmset", "hmget", "hincrby", "hdel", "hlen", "hkeys", "hvals", "hgetall", "hexists", "incrby", "decrby", "getset", "mset", "msetnx", + "randomkey", "select", "move", "rename", "renamenx", "expire", "expireat", "keys", "dbsize", "auth", "ping", "echo", "save", "bgsave", + "bgrewriteaof", "shutdown", "lastsave", "type", "multi", "exec", "discard", "sync", "flushdb", "flushall", "sort", "info", "monitor", "ttl", + "persist", "slaveof", "debug", "config", "subscribe", "unsubscribe", "psubscribe", "punsubscribe", "publish", "watch", "unwatch", "cluster", + "restore", "migrate", "dump", "object", "client", "eval", "evalsha"], require("./lib/commands")); + +commands.forEach(function (fullCommand) { + var command = fullCommand.split(' ')[0]; + + RedisClient.prototype[command] = function (args, callback) { + if (Array.isArray(args) && typeof callback === "function") { + return this.send_command(command, args, callback); + } else { + return this.send_command(command, to_array(arguments)); + } + }; + RedisClient.prototype[command.toUpperCase()] = RedisClient.prototype[command]; + + Multi.prototype[command] = function () { + this.queue.push([command].concat(to_array(arguments))); + return this; + }; + Multi.prototype[command.toUpperCase()] = Multi.prototype[command]; +}); + +// store db in this.select_db to restore it on reconnect +RedisClient.prototype.select = function (db, callback) { + var self = this; + + this.send_command('select', [db], function (err, res) { + if (err === null) { + self.selected_db = db; + } + if (typeof(callback) === 'function') { + callback(err, res); + } else if (err) { + self.emit('error', err); + } + }); +}; +RedisClient.prototype.SELECT = RedisClient.prototype.select; + +// Stash auth for connect and reconnect. Send immediately if already connected. +RedisClient.prototype.auth = function () { + var args = to_array(arguments); + this.auth_pass = args[0]; + this.auth_callback = args[1]; + if (exports.debug_mode) { + console.log("Saving auth as " + this.auth_pass); + } + + if (this.connected) { + this.send_command("auth", args); + } +}; +RedisClient.prototype.AUTH = RedisClient.prototype.auth; + +RedisClient.prototype.hmget = function (arg1, arg2, arg3) { + if (Array.isArray(arg2) && typeof arg3 === "function") { + return this.send_command("hmget", [arg1].concat(arg2), arg3); + } else if (Array.isArray(arg1) && typeof arg2 === "function") { + return this.send_command("hmget", arg1, arg2); + } else { + return this.send_command("hmget", to_array(arguments)); + } +}; +RedisClient.prototype.HMGET = RedisClient.prototype.hmget; + +RedisClient.prototype.hmset = function (args, callback) { + var tmp_args, tmp_keys, i, il, key; + + if (Array.isArray(args) && typeof callback === "function") { + return this.send_command("hmset", args, callback); + } + + args = to_array(arguments); + if (typeof args[args.length - 1] === "function") { + callback = args[args.length - 1]; + args.length -= 1; + } else { + callback = null; + } + + if (args.length === 2 && (typeof args[0] === "string" || typeof args[0] === "number") && typeof args[1] === "object") { + // User does: client.hmset(key, {key1: val1, key2: val2}) + // assuming key is a string, i.e. email address + + // if key is a number, i.e. timestamp, convert to string + if (typeof args[0] === "number") { + args[0] = args[0].toString(); + } + + tmp_args = [ args[0] ]; + tmp_keys = Object.keys(args[1]); + for (i = 0, il = tmp_keys.length; i < il ; i++) { + key = tmp_keys[i]; + tmp_args.push(key); + tmp_args.push(args[1][key]); + } + args = tmp_args; + } + + return this.send_command("hmset", args, callback); +}; +RedisClient.prototype.HMSET = RedisClient.prototype.hmset; + +Multi.prototype.hmset = function () { + var args = to_array(arguments), tmp_args; + if (args.length >= 2 && typeof args[0] === "string" && typeof args[1] === "object") { + tmp_args = [ "hmset", args[0] ]; + Object.keys(args[1]).map(function (key) { + tmp_args.push(key); + tmp_args.push(args[1][key]); + }); + if (args[2]) { + tmp_args.push(args[2]); + } + args = tmp_args; + } else { + args.unshift("hmset"); + } + + this.queue.push(args); + return this; +}; +Multi.prototype.HMSET = Multi.prototype.hmset; + +Multi.prototype.exec = function (callback) { + var self = this; + var errors = []; + // drain queue, callback will catch "QUEUED" or error + // TODO - get rid of all of these anonymous functions which are elegant but slow + this.queue.forEach(function (args, index) { + var command = args[0], obj; + if (typeof args[args.length - 1] === "function") { + args = args.slice(1, -1); + } else { + args = args.slice(1); + } + if (args.length === 1 && Array.isArray(args[0])) { + args = args[0]; + } + if (command.toLowerCase() === 'hmset' && typeof args[1] === 'object') { + obj = args.pop(); + Object.keys(obj).forEach(function (key) { + args.push(key); + args.push(obj[key]); + }); + } + this._client.send_command(command, args, function (err, reply) { + if (err) { + var cur = self.queue[index]; + if (typeof cur[cur.length - 1] === "function") { + cur[cur.length - 1](err); + } else { + errors.push(new Error(err)); + } + } + }); + }, this); + + // TODO - make this callback part of Multi.prototype instead of creating it each time + return this._client.send_command("EXEC", [], function (err, replies) { + if (err) { + if (callback) { + errors.push(new Error(err)); + callback(errors); + return; + } else { + throw new Error(err); + } + } + + var i, il, reply, args; + + if (replies) { + for (i = 1, il = self.queue.length; i < il; i += 1) { + reply = replies[i - 1]; + args = self.queue[i]; + + // TODO - confusing and error-prone that hgetall is special cased in two places + if (reply && args[0].toLowerCase() === "hgetall") { + replies[i - 1] = reply = reply_to_object(reply); + } + + if (typeof args[args.length - 1] === "function") { + args[args.length - 1](null, reply); + } + } + } + + if (callback) { + callback(null, replies); + } + }); +}; +Multi.prototype.EXEC = Multi.prototype.exec; + +RedisClient.prototype.multi = function (args) { + return new Multi(this, args); +}; +RedisClient.prototype.MULTI = function (args) { + return new Multi(this, args); +}; + + +// stash original eval method +var eval_orig = RedisClient.prototype.eval; +// hook eval with an attempt to evalsha for cached scripts +RedisClient.prototype.eval = RedisClient.prototype.EVAL = function () { + var self = this, + args = to_array(arguments), + callback; + + if (typeof args[args.length - 1] === "function") { + callback = args.pop(); + } + + if (Array.isArray(args[0])) { + args = args[0]; + } + + // replace script source with sha value + var source = args[0]; + args[0] = crypto.createHash("sha1").update(source).digest("hex"); + + self.evalsha(args, function (err, reply) { + if (err && /NOSCRIPT/.test(err.message)) { + args[0] = source; + eval_orig.call(self, args, callback); + + } else if (callback) { + callback(err, reply); + } + }); +}; + + +exports.createClient = function(arg0, arg1, arg2){ + if( arguments.length === 0 ){ + + // createClient() + return createClient_tcp(default_port, default_host, {}); + + } else if( typeof arg0 === 'number' || + typeof arg0 === 'string' && arg0.match(/^\d+$/) ){ + + // createClient( 3000, host, options) + // createClient('3000', host, options) + return createClient_tcp(arg0, arg1, arg2); + + } else if( typeof arg0 === 'string' ){ + + // createClient( '/tmp/redis.sock', options) + return createClient_unix(arg0,arg1); + + } else if( arg0 !== null && typeof arg0 === 'object' ){ + + // createClient(options) + return createClient_tcp(default_port, default_host, arg0 ); + + } else if( arg0 === null && arg1 === null ){ + + // for backward compatibility + // createClient(null,null,options) + return createClient_tcp(default_port, default_host, arg2); + + } else { + throw new Error('unknown type of connection in createClient()'); + } +} + +var createClient_unix = function(path, options){ + var cnxOptions = { + path: path + }; + var net_client = net.createConnection(cnxOptions); + var redis_client = new RedisClient(net_client, options || {}); + + redis_client.connectionOption = cnxOptions; + redis_client.address = path; + + return redis_client; +} + +var createClient_tcp = function (port_arg, host_arg, options) { + var cnxOptions = { + 'port' : port_arg || default_port, + 'host' : host_arg || default_host, + 'family' : (options && options.family === 'IPv6') ? 6 : 4 + }; + var net_client = net.createConnection(cnxOptions); + var redis_client = new RedisClient(net_client, options || {}); + + redis_client.connectionOption = cnxOptions; + redis_client.address = cnxOptions.host + ':' + cnxOptions.port; + + return redis_client; +}; + +exports.print = function (err, reply) { + if (err) { + console.log("Error: " + err); + } else { + console.log("Reply: " + reply); + } +}; diff --git a/signaling-server/node_modules/redis/lib/commands.js b/signaling-server/node_modules/redis/lib/commands.js new file mode 100644 index 0000000..b036535 --- /dev/null +++ b/signaling-server/node_modules/redis/lib/commands.js @@ -0,0 +1,163 @@ +// This file was generated by ./generate_commands.js on Wed Apr 23 2014 14:51:21 GMT-0700 (PDT) +module.exports = [ + "append", + "auth", + "bgrewriteaof", + "bgsave", + "bitcount", + "bitop", + "bitpos", + "blpop", + "brpop", + "brpoplpush", + "client kill", + "client list", + "client getname", + "client pause", + "client setname", + "config get", + "config rewrite", + "config set", + "config resetstat", + "dbsize", + "debug object", + "debug segfault", + "decr", + "decrby", + "del", + "discard", + "dump", + "echo", + "eval", + "evalsha", + "exec", + "exists", + "expire", + "expireat", + "flushall", + "flushdb", + "get", + "getbit", + "getrange", + "getset", + "hdel", + "hexists", + "hget", + "hgetall", + "hincrby", + "hincrbyfloat", + "hkeys", + "hlen", + "hmget", + "hmset", + "hset", + "hsetnx", + "hvals", + "incr", + "incrby", + "incrbyfloat", + "info", + "keys", + "lastsave", + "lindex", + "linsert", + "llen", + "lpop", + "lpush", + "lpushx", + "lrange", + "lrem", + "lset", + "ltrim", + "mget", + "migrate", + "monitor", + "move", + "mset", + "msetnx", + "multi", + "object", + "persist", + "pexpire", + "pexpireat", + "pfadd", + "pfcount", + "pfmerge", + "ping", + "psetex", + "psubscribe", + "pubsub", + "pttl", + "publish", + "punsubscribe", + "quit", + "randomkey", + "rename", + "renamenx", + "restore", + "rpop", + "rpoplpush", + "rpush", + "rpushx", + "sadd", + "save", + "scard", + "script exists", + "script flush", + "script kill", + "script load", + "sdiff", + "sdiffstore", + "select", + "set", + "setbit", + "setex", + "setnx", + "setrange", + "shutdown", + "sinter", + "sinterstore", + "sismember", + "slaveof", + "slowlog", + "smembers", + "smove", + "sort", + "spop", + "srandmember", + "srem", + "strlen", + "subscribe", + "sunion", + "sunionstore", + "sync", + "time", + "ttl", + "type", + "unsubscribe", + "unwatch", + "watch", + "zadd", + "zcard", + "zcount", + "zincrby", + "zinterstore", + "zlexcount", + "zrange", + "zrangebylex", + "zrangebyscore", + "zrank", + "zrem", + "zremrangebylex", + "zremrangebyrank", + "zremrangebyscore", + "zrevrange", + "zrevrangebyscore", + "zrevrank", + "zscore", + "zunionstore", + "scan", + "sscan", + "hscan", + "zscan" +]; diff --git a/signaling-server/node_modules/redis/lib/parser/hiredis.js b/signaling-server/node_modules/redis/lib/parser/hiredis.js new file mode 100644 index 0000000..940bfee --- /dev/null +++ b/signaling-server/node_modules/redis/lib/parser/hiredis.js @@ -0,0 +1,46 @@ +var events = require("events"), + util = require("../util"), + hiredis = require("hiredis"); + +exports.debug_mode = false; +exports.name = "hiredis"; + +function HiredisReplyParser(options) { + this.name = exports.name; + this.options = options || {}; + this.reset(); + events.EventEmitter.call(this); +} + +util.inherits(HiredisReplyParser, events.EventEmitter); + +exports.Parser = HiredisReplyParser; + +HiredisReplyParser.prototype.reset = function () { + this.reader = new hiredis.Reader({ + return_buffers: this.options.return_buffers || false + }); +}; + +HiredisReplyParser.prototype.execute = function (data) { + var reply; + this.reader.feed(data); + while (true) { + try { + reply = this.reader.get(); + } catch (err) { + this.emit("error", err); + break; + } + + if (reply === undefined) { + break; + } + + if (reply && reply.constructor === Error) { + this.emit("reply error", reply); + } else { + this.emit("reply", reply); + } + } +}; diff --git a/signaling-server/node_modules/redis/lib/parser/javascript.js b/signaling-server/node_modules/redis/lib/parser/javascript.js new file mode 100644 index 0000000..0990cc0 --- /dev/null +++ b/signaling-server/node_modules/redis/lib/parser/javascript.js @@ -0,0 +1,301 @@ +var events = require("events"), + util = require("../util"); + +function Packet(type, size) { + this.type = type; + this.size = +size; +} + +exports.name = "javascript"; +exports.debug_mode = false; + +function ReplyParser(options) { + this.name = exports.name; + this.options = options || { }; + + this._buffer = null; + this._offset = 0; + this._encoding = "utf-8"; + this._debug_mode = options.debug_mode; + this._reply_type = null; +} + +util.inherits(ReplyParser, events.EventEmitter); + +exports.Parser = ReplyParser; + +function IncompleteReadBuffer(message) { + this.name = "IncompleteReadBuffer"; + this.message = message; +} +util.inherits(IncompleteReadBuffer, Error); + +// Buffer.toString() is quite slow for small strings +function small_toString(buf, start, end) { + var tmp = "", i; + + for (i = start; i < end; i++) { + tmp += String.fromCharCode(buf[i]); + } + + return tmp; +} + +ReplyParser.prototype._parseResult = function (type) { + var start, end, offset, packetHeader; + + if (type === 43 || type === 45) { // + or - + // up to the delimiter + end = this._packetEndOffset() - 1; + start = this._offset; + + // include the delimiter + this._offset = end + 2; + + if (end > this._buffer.length) { + this._offset = start; + throw new IncompleteReadBuffer("Wait for more data."); + } + + if (this.options.return_buffers) { + return this._buffer.slice(start, end); + } else { + if (end - start < 65536) { // completely arbitrary + return small_toString(this._buffer, start, end); + } else { + return this._buffer.toString(this._encoding, start, end); + } + } + } else if (type === 58) { // : + // up to the delimiter + end = this._packetEndOffset() - 1; + start = this._offset; + + // include the delimiter + this._offset = end + 2; + + if (end > this._buffer.length) { + this._offset = start; + throw new IncompleteReadBuffer("Wait for more data."); + } + + if (this.options.return_buffers) { + return this._buffer.slice(start, end); + } + + // return the coerced numeric value + return +small_toString(this._buffer, start, end); + } else if (type === 36) { // $ + // set a rewind point, as the packet could be larger than the + // buffer in memory + offset = this._offset - 1; + + packetHeader = new Packet(type, this.parseHeader()); + + // packets with a size of -1 are considered null + if (packetHeader.size === -1) { + return undefined; + } + + end = this._offset + packetHeader.size; + start = this._offset; + + // set the offset to after the delimiter + this._offset = end + 2; + + if (end > this._buffer.length) { + this._offset = offset; + throw new IncompleteReadBuffer("Wait for more data."); + } + + if (this.options.return_buffers) { + return this._buffer.slice(start, end); + } else { + return this._buffer.toString(this._encoding, start, end); + } + } else if (type === 42) { // * + offset = this._offset; + packetHeader = new Packet(type, this.parseHeader()); + + if (packetHeader.size < 0) { + return null; + } + + if (packetHeader.size > this._bytesRemaining()) { + this._offset = offset - 1; + throw new IncompleteReadBuffer("Wait for more data."); + } + + var reply = [ ]; + var ntype, i, res; + + offset = this._offset - 1; + + for (i = 0; i < packetHeader.size; i++) { + ntype = this._buffer[this._offset++]; + + if (this._offset > this._buffer.length) { + throw new IncompleteReadBuffer("Wait for more data."); + } + res = this._parseResult(ntype); + if (res === undefined) { + res = null; + } + reply.push(res); + } + + return reply; + } +}; + +ReplyParser.prototype.execute = function (buffer) { + this.append(buffer); + + var type, ret, offset; + + while (true) { + offset = this._offset; + try { + // at least 4 bytes: :1\r\n + if (this._bytesRemaining() < 4) { + break; + } + + type = this._buffer[this._offset++]; + + if (type === 43) { // + + ret = this._parseResult(type); + + if (ret === null) { + break; + } + + this.send_reply(ret); + } else if (type === 45) { // - + ret = this._parseResult(type); + + if (ret === null) { + break; + } + + this.send_error(ret); + } else if (type === 58) { // : + ret = this._parseResult(type); + + if (ret === null) { + break; + } + + this.send_reply(ret); + } else if (type === 36) { // $ + ret = this._parseResult(type); + + if (ret === null) { + break; + } + + // check the state for what is the result of + // a -1, set it back up for a null reply + if (ret === undefined) { + ret = null; + } + + this.send_reply(ret); + } else if (type === 42) { // * + // set a rewind point. if a failure occurs, + // wait for the next execute()/append() and try again + offset = this._offset - 1; + + ret = this._parseResult(type); + + this.send_reply(ret); + } + } catch (err) { + // catch the error (not enough data), rewind, and wait + // for the next packet to appear + if (! (err instanceof IncompleteReadBuffer)) { + throw err; + } + this._offset = offset; + break; + } + } +}; + +ReplyParser.prototype.append = function (newBuffer) { + if (!newBuffer) { + return; + } + + // first run + if (this._buffer === null) { + this._buffer = newBuffer; + + return; + } + + // out of data + if (this._offset >= this._buffer.length) { + this._buffer = newBuffer; + this._offset = 0; + + return; + } + + // very large packet + // check for concat, if we have it, use it + if (Buffer.concat !== undefined) { + this._buffer = Buffer.concat([this._buffer.slice(this._offset), newBuffer]); + } else { + var remaining = this._bytesRemaining(), + newLength = remaining + newBuffer.length, + tmpBuffer = new Buffer(newLength); + + this._buffer.copy(tmpBuffer, 0, this._offset); + newBuffer.copy(tmpBuffer, remaining, 0); + + this._buffer = tmpBuffer; + } + + this._offset = 0; +}; + +ReplyParser.prototype.parseHeader = function () { + var end = this._packetEndOffset(), + value = small_toString(this._buffer, this._offset, end - 1); + + this._offset = end + 1; + + return value; +}; + +ReplyParser.prototype._packetEndOffset = function () { + var offset = this._offset; + + while (this._buffer[offset] !== 0x0d && this._buffer[offset + 1] !== 0x0a) { + offset++; + + if (offset >= this._buffer.length) { + throw new IncompleteReadBuffer("didn't see LF after NL reading multi bulk count (" + offset + " => " + this._buffer.length + ", " + this._offset + ")"); + } + } + + offset++; + return offset; +}; + +ReplyParser.prototype._bytesRemaining = function () { + return (this._buffer.length - this._offset) < 0 ? 0 : (this._buffer.length - this._offset); +}; + +ReplyParser.prototype.parser_error = function (message) { + this.emit("error", message); +}; + +ReplyParser.prototype.send_error = function (reply) { + this.emit("reply error", reply); +}; + +ReplyParser.prototype.send_reply = function (reply) { + this.emit("reply", reply); +}; diff --git a/signaling-server/node_modules/redis/lib/queue.js b/signaling-server/node_modules/redis/lib/queue.js new file mode 100644 index 0000000..3fc87ab --- /dev/null +++ b/signaling-server/node_modules/redis/lib/queue.js @@ -0,0 +1,59 @@ +// Queue class adapted from Tim Caswell's pattern library +// http://github.com/creationix/pattern/blob/master/lib/pattern/queue.js + +function Queue() { + this.tail = []; + this.head = []; + this.offset = 0; +} + +Queue.prototype.shift = function () { + if (this.offset === this.head.length) { + var tmp = this.head; + tmp.length = 0; + this.head = this.tail; + this.tail = tmp; + this.offset = 0; + if (this.head.length === 0) { + return; + } + } + return this.head[this.offset++]; // sorry, JSLint +}; + +Queue.prototype.push = function (item) { + return this.tail.push(item); +}; + +Queue.prototype.forEach = function (fn, thisv) { + var array = this.head.slice(this.offset), i, il; + + array.push.apply(array, this.tail); + + if (thisv) { + for (i = 0, il = array.length; i < il; i += 1) { + fn.call(thisv, array[i], i, array); + } + } else { + for (i = 0, il = array.length; i < il; i += 1) { + fn(array[i], i, array); + } + } + + return array; +}; + +Queue.prototype.getLength = function () { + return this.head.length - this.offset + this.tail.length; +}; + +Object.defineProperty(Queue.prototype, "length", { + get: function () { + return this.getLength(); + } +}); + + +if (typeof module !== "undefined" && module.exports) { + module.exports = Queue; +} diff --git a/signaling-server/node_modules/redis/lib/to_array.js b/signaling-server/node_modules/redis/lib/to_array.js new file mode 100644 index 0000000..88a57e1 --- /dev/null +++ b/signaling-server/node_modules/redis/lib/to_array.js @@ -0,0 +1,12 @@ +function to_array(args) { + var len = args.length, + arr = new Array(len), i; + + for (i = 0; i < len; i += 1) { + arr[i] = args[i]; + } + + return arr; +} + +module.exports = to_array; diff --git a/signaling-server/node_modules/redis/lib/util.js b/signaling-server/node_modules/redis/lib/util.js new file mode 100644 index 0000000..fc255ae --- /dev/null +++ b/signaling-server/node_modules/redis/lib/util.js @@ -0,0 +1,11 @@ +// Support for very old versions of node where the module was called "sys". At some point, we should abandon this. + +var util; + +try { + util = require("util"); +} catch (err) { + util = require("sys"); +} + +module.exports = util; diff --git a/signaling-server/node_modules/redis/package.json b/signaling-server/node_modules/redis/package.json new file mode 100644 index 0000000..ee47771 --- /dev/null +++ b/signaling-server/node_modules/redis/package.json @@ -0,0 +1,58 @@ +{ + "name": "redis", + "version": "0.12.1", + "description": "Redis client library", + "keywords": [ + "redis", + "database" + ], + "author": { + "name": "Matt Ranney", + "email": "mjr@ranney.com" + }, + "main": "./index.js", + "scripts": { + "test": "node ./test.js" + }, + "devDependencies": { + "metrics": ">=0.1.5", + "colors": "~0.6.0-1", + "underscore": "~1.4.4" + }, + "repository": { + "type": "git", + "url": "git://github.com/mranney/node_redis.git" + }, + "bugs": { + "url": "https://github.com/mranney/node_redis/issues" + }, + "homepage": "https://github.com/mranney/node_redis", + "_id": "redis@0.12.1", + "_shasum": "64df76ad0fc8acebaebd2a0645e8a48fac49185e", + "_from": "redis@", + "_npmVersion": "1.4.9", + "_npmUser": { + "name": "bryce", + "email": "bryce@ravenwall.com" + }, + "maintainers": [ + { + "name": "mjr", + "email": "mjr@ranney.com" + }, + { + "name": "bryce", + "email": "bryce@ravenwall.com" + }, + { + "name": "dtrejo", + "email": "david.daniel.trejo@gmail.com" + } + ], + "dist": { + "shasum": "64df76ad0fc8acebaebd2a0645e8a48fac49185e", + "tarball": "http://registry.npmjs.org/redis/-/redis-0.12.1.tgz" + }, + "directories": {}, + "_resolved": "https://registry.npmjs.org/redis/-/redis-0.12.1.tgz" +} |