Allow setting SID by command line argument

This lets us actually send messages to clients as they're ready during
setup.

.gometalinter.json

@@ -0,0 +1,8 @@
+{
+  "Disable": [
+    "goconst",
+    "gocyclo",
+    "vetshadow"
+  ],
+  "Vendor": true
+}

.goreleaser.yml

@@ -0,0 +1,14 @@
+builds:
+  -
+    goos:
+      - linux
+    goarch:
+      - amd64
+      - arm
+archive:
+  wrap_in_directory: true
+  files:
+    - CHANGELOG.md
+    - conf/*
+    - COPYING
+    - README.md

.travis.yml

@@ -1,3 +1,5 @@
 language: go
 go:
-  - 1.9.x
+  - "1.x"
+script:
+  - go test -v ./...

CHANGELOG.md

@@ -0,0 +1,37 @@
+# 1.12.0
+
+* Send messages during connect immediately rather than only after we've
+  performed our reverse DNS lookup.
+* Allow setting server name via command line argument.
+* Log server name when starting up.
+* Allow setting SID via command line argument.
+
+
+# 1.11.0 (2019-01-01)
+
+* No longer automatically rehash once a week. I changed my mind about this!
+
+
+# 1.10.0 (2018-08-18)
+
+* Rehashing now reloads the TLS certificate and key.
+* Rehashing now automatically happens once a week. This is so we load new
+  certificates.
+* Require valid TLS certificates on outbound TLS connections. This means
+  servers we connect to must have valid certificates that match the name we
+  connect to them as.
+
+
+# 1.9.0 (2018-07-28)
+
+* Started tracking changes in a changelog.
+* If a message is invalid, send a notice to opers about it rather than just
+  log. This is to catch bugs arising from this behaviour.
+* Send a notice to opers if there is an unprocessed buffer after a read
+  error. This is again to catch bugs from this behaviour.
+* Failing to set read deadlines now logs rather than triggers client quit.
+  This is to allow for the read to happen which can have data in the
+  buffer.
+* Delay before flagging the client as dead if there is a write error. This
+  is to give us a window to read anything further from the client that
+  might be available.

Gopkg.lock

@@ -13,9 +13,15 @@
   packages = ["."]
   revision = "f421bdb90dcc93b6e3724a50b1f2b360a6d72a44"
 
+[[projects]]
+  name = "github.com/pkg/errors"
+  packages = ["."]
+  revision = "645ef00459ed84a119197bfb8d8205042c6df63d"
+  version = "v0.8.0"
+
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "3bb124c1ad76d31bb309c200a3eea258673d458d10d51667a1dbd61e915e624c"
+  inputs-digest = "9cb9d754ea09adacef36be72eb569ca57e813554c871a875647e9d24bf96e360"
   solver-name = "gps-cdcl"
   solver-version = 1

Gopkg.toml

@@ -28,3 +28,7 @@
 [[constraint]]
   branch = "master"
   name = "github.com/horgh/irc"
+
+[[constraint]]
+  name = "github.com/pkg/errors"
+  version = "0.8.0"

README.md

@@ -5,84 +5,68 @@ Status](https://travis-ci.org/horgh/catbox.svg)](https://travis-ci.org/horgh/cat
 [![Go Report
 Card](https://goreportcard.com/badge/github.com/horgh/catbox)](https://goreportcard.com/report/github.com/horgh/catbox)
 
-This is a minimal IRC daemon. I run a small network using
-[ircd-ratbox](http://ratbox.org/) and had the idea to create an IRC server
-capable of linking to it and eventually replacing it. My goal is to have a
-minimal server that will meet this network's needs.
-
-
-# Status
-catbox is capable of linking to itself and to ircd-ratbox servers. It is in
-active use on my network.
-
-
-# Why the name?
-My domain name is summercat.com, cats love boxes, and a tribute to
-ircd-ratbox.
+catbox is an IRC server with a focus on being small and understandable. The
+goal is security.
 
 
 # Features
-* Server to server communication using the TS6 protocol. In addition to
-  being able to link to other catbox servers, it can link with other TS6
-  servers such as ircd-ratbox.
-* Most basic IRC commands and features are present.
-* Channel modes: +n, +s, +o.
-* User modes: +i, +o, +C.
-* Global IRC operators.
-* Network wide operator communication with WALLOPS.
-* Private (WHOIS shows no channels, LIST isn't supported).
-* Server connections are based on hosts rather than IPs. This means servers
-  can have dynamic IPs.
-* Network wide connection notices sent to operators.
-* Flood protection.
-* K: line style connection banning.
+* Server to server linking
+* IRC operators
+* Private (WHOIS shows no channels, LIST isn't supported)
+* Flood protection
+* K: line style connection banning
+* TLS
+
+catbox implements enough of [RFC 1459](https://tools.ietf.org/html/rfc1459)
+to be recognisable as IRC and be minimally functional. I likely won't add
+much more and don't intend it to be complete. If I don't think something is
+required it likely won't be here.
 
 
-# Setup
-1. Build the server. You need a working [Go
-   compiler](https://golang.org/dl/). An easy way to do this is to run `go
-   get -u github.com/horgh/catbox`.
-2. Configure it. This is done through configuration files. Examples are in
-   the `conf` directory. Copy and edit them. All settings are optional and
-   have defaults.
-3. Start the daemon: `catbox -conf catbox.conf`
+# Installation
+1. Download catbox from the Releases tab on GitHub, or build from source
+   (`go build`).
+2. Configure catbox through config files. There are example configs in the
+   `conf` directory. All settings are optional and have defaults.
+3. Run it, e.g. `./catbox -conf catbox.conf`. I typically run catbox
+   inside tmux using [this program](bin/tmux-run.sh).
 
 
 # Configuration
 
 ## catbox.conf
-This file holds global settings for the server.
-
-You'll probably want to change `listen-host`, `listen-port`, and
-`server-name` at minimum.
+Global server settings.
 
 
 ## opers.conf
-This file defines IRC operators. A user can become an operator by using the
-`OPER` command with a username and password combination listed in this file.
+IRC operators.
 
 
 ## servers.conf
-This file defines servers to link to and accept links from.
+The servers to link with.
 
 
 ## users.conf
-This file defines privileges and hostname spoofs for users. The only
-privilege right now is flood exemption.
+Privileges and hostname spoofs for users.
+
+The only privilege right now is flood exemption.
 
 
-# TLS
-If you want to listen on a TLS port, you must have a certificate and key
-available.
+## TLS
+A setup for a network might look like this:
 
-To generate a self-signed certificate for TLS:
+* Give each server a certificate with 2 SANs: Its own hostname, e.g.
+  server1.example.com, and the network hostname, e.g. irc.example.com.
+* Set up irc.example.com with DNS round-robin listing each server's IP.
+* List each server by its own hostname in servers.conf.
 
-    openssl req -newkey rsa:4096 -x509 -keyout key.pem -out certificate.pem -days 3650 -nodes
+Clients connect to the network hostname and verify against it. Servers
+connect to each other by server hostname and verify against it.
 
 
-# Tests
-In addition to the unit level tests here, there are some integration tests
-in [another repository](https://github.com/horgh/boxcat).
+# Why the name?
+My domain name is summercat.com, cats love boxes, and a tribute to
+ircd-ratbox, the IRC daemon I used in the past.
 
 
 # Logo

args.go

@@ -11,12 +11,27 @@ import (
 type Args struct {
 	ConfigFile string
 	ListenFD   int
+	ServerName string
+	SID        string
 }
 
 func getArgs() *Args {
 	configFile := flag.String("conf", "", "Configuration file.")
-	fd := flag.Int("listen-fd", -1,
-		"File descriptor with listening port to use (optional).")
+	fd := flag.Int(
+		"listen-fd",
+		-1,
+		"File descriptor with listening port to use (optional).",
+	)
+	serverName := flag.String(
+		"server-name",
+		"",
+		"Server name. Overrides server-name from config.",
+	)
+	sid := flag.String(
+		"sid",
+		"",
+		"SID. Overrides ts6-sid from config.",
+	)
 
 	flag.Parse()
 
@@ -35,11 +50,13 @@ func getArgs() *Args {
 	return &Args{
 		ConfigFile: configPath,
 		ListenFD:   *fd,
+		ServerName: *serverName,
+		SID:        *sid,
 	}
 }
 
 func printUsage(err error) {
-	fmt.Fprintf(os.Stderr, "%s\n", err)
-	fmt.Fprintf(os.Stderr, "Usage: %s <arguments>\n", os.Args[0])
+	_, _ = fmt.Fprintf(os.Stderr, "%s\n", err)                           // nolint: gas
+	_, _ = fmt.Fprintf(os.Stderr, "Usage: %s <arguments>\n", os.Args[0]) // nolint: gas
 	flag.PrintDefaults()
 }

config.go

@@ -78,7 +78,11 @@ type UserConfig struct {
 // We parse some values into alternate representations.
 //
 // This function populates both the server.Config and server.Opers fields.
-func checkAndParseConfig(file string) (*Config, error) {
+func checkAndParseConfig(
+	file,
+	serverName,
+	sid string,
+) (*Config, error) {
 	m, err := config.ReadStringMap(file)
 	if err != nil {
 		return nil, err
@@ -113,6 +117,9 @@ func checkAndParseConfig(file string) (*Config, error) {
 	if m["server-name"] != "" {
 		c.ServerName = m["server-name"]
 	}
+	if serverName != "" {
+		c.ServerName = serverName
+	}
 
 	c.ServerInfo = "IRC"
 	if m["server-info"] != "" {
@@ -216,6 +223,9 @@ func checkAndParseConfig(file string) (*Config, error) {
 		}
 		c.TS6SID = TS6SID(m["ts6-sid"])
 	}
+	if sid != "" {
+		c.TS6SID = TS6SID(sid)
+	}
 
 	c.AdminEmail = m["admin-email"]
 

doc/README.dev.md

@@ -0,0 +1,9 @@
+# Releasing
+* Bump values in `version.go`
+* Update `CHANGELOG.md`
+* `git commit -m vx.y.z`
+* `git push`
+* `git tag -a vx.y.z -m vx.y.z`
+* `export GITHUB_TOKEN=tokenhere`
+* `goreleaser`
+* Don't need to push tags. goreleaser does it.

doc/TODO.md

@@ -1,27 +1,35 @@
 # TODO
 
 ## Higher priority
+* Wake up less
+* Back off on connection failures
+* Convert tests to use stretchr/testify.
+* Show IPs to opers in WHOIS with 378 numeric.
 * Op desync issue - should be de-opped if we have an op and link to a
   server where the channel already exists. Can see not-op on one side and
   op on the catbox side. I think this is because of us clearing modes on
   SJOIN commands, but those cleared modes only get sent locally.
+* PASS command for users to authenticate.
+  * Authenticated user should show in WHOIS with 330 numeric.
+* Automatically spoof people's hosts.
+* WHOWAS.
 * Many log calls should probably go to opers. Right now they will probably
   always be missed.
+* Additional tests.
+* Loading config should error if there is an unknown option
+* Channel mode +i
 
 
 ## Uncategorized/unprioritized
 * Command to dump out entire state. Servers, channels, nicks, modes, etc.
   This could be used for monitoring that every server is in sync.
 * Switch config to TOML
-* Loading config should error if there is an unknown option
 * Make canonicalizeNick and canonicalizeChannel return error if the names
   are invalid? Right now it is a bit error prone because we can
   canonicalize invalid names.
 * Consider combining cleanup user logic in server's killCommand() with
   cleanupKilledUser()
 * Consolidate repeated topic setting logic (user TOPIC, server TOPIC, TB)
-* Additional automated testing. More unit tests here and more integration
-  tests in the boxcat repository.
 * Add command to dump out config (the current catbox config as seen from
   the config file). Partly this will be useful because not everything gets
   reloaded on rehash.
@@ -42,7 +50,7 @@
 
 
 ## RFC
-* Channel modes: +v/+b/+i/+k/etc
+* Channel modes: +v/+b/+k/etc
 * KICK
 
 
@@ -61,11 +69,8 @@
 
 
 ## Non-standard
-* Upgrade in place (is this possible with TLS connections without
-  disconnecting them?)
 * Server console.
-* Upgrade without losing connections
-* Inform clients when someone whois's them.
+* Inform clients when someone WHOIS's them.
 * Exchange K:Lines during server burst
 * Persistent K:Lines (currently they are in memory only)
 
@@ -80,3 +85,6 @@
 * Daemonize.
   * There is no support in Go for this right now.
   * Using init system seems sufficient
+* Upgrade in place without losing connections
+  * Not really feasible with current TLS library as connection state can't
+    be kept.

go.mod

@@ -0,0 +1,9 @@
+module github.com/horgh/catbox
+
+require (
+	github.com/horgh/config v0.0.0-20190101204049-770bc48a3bdf
+	github.com/horgh/irc v0.0.0-20190101204118-d089b0b5b5c5
+	github.com/pkg/errors v0.8.1
+	github.com/stretchr/objx v0.2.0 // indirect
+	github.com/stretchr/testify v1.3.0
+)

go.sum

@@ -0,0 +1,28 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/horgh/config v0.0.0-20180303191532-3d1f920eb228 h1:R302KZFIBabAYgFZ0hgqRTeCF43Lm5rir+UnJYW3idQ=
+github.com/horgh/config v0.0.0-20180303191532-3d1f920eb228/go.mod h1:DSwQKBmwAzGuDhYajjeJshx5PCPCJfSZJXtbV+8/nck=
+github.com/horgh/config v0.0.0-20190101202014-d9e8eabe6dbb h1:u6pj1d0h6XSjJ84iixIMvSZT1fbLC1g4qqkV54EMOfo=
+github.com/horgh/config v0.0.0-20190101202014-d9e8eabe6dbb/go.mod h1:DSwQKBmwAzGuDhYajjeJshx5PCPCJfSZJXtbV+8/nck=
+github.com/horgh/config v0.0.0-20190101204049-770bc48a3bdf h1:/jDikK0Oteboi7/Z6uzan5aQhiqwMwKTIA+5ZooDclk=
+github.com/horgh/config v0.0.0-20190101204049-770bc48a3bdf/go.mod h1:DSwQKBmwAzGuDhYajjeJshx5PCPCJfSZJXtbV+8/nck=
+github.com/horgh/irc v0.0.0-20180101050313-f421bdb90dcc h1:FXH8Jqdcz9BbR94qHrCVGA5FhbcWNC+HpIXYwVgOc2I=
+github.com/horgh/irc v0.0.0-20180101050313-f421bdb90dcc/go.mod h1:UqEB9NVUSZzN4ESuQX3yEvi80Mgg2O4kttl8oU9+nds=
+github.com/horgh/irc v0.0.0-20190101203129-f09ebee6408d h1:ANDjU4bIeLO80xssAxig8qftG6ohyg08IqsIPnKqafg=
+github.com/horgh/irc v0.0.0-20190101203129-f09ebee6408d/go.mod h1:JLhFcwXOnpvhMer1MERfJuFIoJnADayDWe0VkMN3LP4=
+github.com/horgh/irc v0.0.0-20190101204118-d089b0b5b5c5 h1:wndND79llNLTZZW/Xcg9oKMk/NuGMo+pAX+LKg1mZF8=
+github.com/horgh/irc v0.0.0-20190101204118-d089b0b5b5c5/go.mod h1:JLhFcwXOnpvhMer1MERfJuFIoJnADayDWe0VkMN3LP4=
+github.com/pkg/errors v0.8.0 h1:WdK/asTD0HN+q6hsWO3/vpuAkAr+tw6aNJNDFFf0+qw=
+github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

local_client.go

@@ -15,7 +15,7 @@ import (
 // LocalClient holds state about a local connection.
 // All connections are in this state until they register as either a user client
 // or as a server.
-type LocalClient struct {
+type LocalClient struct { // nolint: maligned
 	// Conn is the TCP connection to the client.
 	Conn Conn
 
@@ -167,6 +167,11 @@ func (c *LocalClient) readLoop() {
 		buf, err := c.Conn.Read()
 		if err != nil {
 			log.Printf("Client %s: Read problem: %s", c, err)
+			// Debug concerns with missing quit messages.
+			if buf != "" {
+				c.Catbox.noticeOpers(fmt.Sprintf("Read error but have [%s]",
+					strings.TrimSpace(buf)))
+			}
 			c.Catbox.newEvent(Event{Type: DeadClientEvent, Client: c, Error: err})
 			break
 		}
@@ -175,14 +180,14 @@ func (c *LocalClient) readLoop() {
 
 		message, err := irc.ParseMessage(buf)
 		if err != nil {
+			c.Catbox.noticeOpers(fmt.Sprintf("Invalid message from client %s: %s", c,
+				err))
+
 			if err != irc.ErrTruncated {
-				log.Printf("Client %s: Invalid message: %s: %s", c, buf, err)
 				// Should we reply to the client? This silently ignores malformed
 				// messages.
 				continue
 			}
-
-			log.Printf("Client %s: Warning: Message truncated: %s", c, buf)
 		}
 
 		c.Catbox.newEvent(Event{
@@ -229,17 +234,18 @@ Loop:
 
 			buf, err := message.Encode()
 			if err != nil {
+				c.Catbox.noticeOpers(fmt.Sprintf(
+					"Trying to send invalid message to client %s: %s", c, err))
 				if err != irc.ErrTruncated {
-					log.Printf("Client %s: Unable to encode message: %s: %s", c, message,
-						err)
 					continue
 				}
-
-				log.Printf("Client %s: Warning: Message truncated: %s", c, message)
 			}
 
 			if err := c.Conn.Write(buf); err != nil {
 				log.Printf("Client %s: Write problem: %s: %s", c, buf, err)
+				// Don't kill the client immediately. Give a chance for us to read
+				// anything from it.
+				time.Sleep(5 * time.Second)
 				c.Catbox.newEvent(Event{Type: DeadClientEvent, Client: c, Error: err})
 				break Loop
 			}

local_server.go

@@ -676,7 +676,7 @@ func (s *LocalServer) uidCommand(m irc.Message) {
 	sid := TS6SID(m.Prefix)
 
 	// Do we know the server the message originates on?
-	usersServer, exists := s.Catbox.Servers[TS6SID(sid)]
+	usersServer, exists := s.Catbox.Servers[sid]
 	if !exists {
 		s.quit(fmt.Sprintf("UID message from unknown server %s", sid))
 		return
@@ -763,7 +763,7 @@ func (s *LocalServer) uidCommand(m irc.Message) {
 	u := &User{
 		DisplayNick:   displayNick,
 		HopCount:      int(hopCount),
-		NickTS:        int64(nickTS),
+		NickTS:        nickTS,
 		Modes:         umodes,
 		Username:      username,
 		Hostname:      hostname,

local_user.go

@@ -181,7 +181,7 @@ func (u *LocalUser) join(channelName string) {
 	// First build the portion that is common to every NAMREPLY so we can get
 	// its length.
 	namMessage := irc.Message{
-		Prefix:  string(u.Catbox.Config.ServerName),
+		Prefix:  u.Catbox.Config.ServerName,
 		Command: "353",
 		// Last parameter is where nicks go. We'll have " :" since it's blank
 		// right now (when we encode to determine base size).
@@ -359,8 +359,7 @@ func (u *LocalUser) part(channelName, message string) {
 // Note: Only the server goroutine should call this (due to closing channel).
 func (u *LocalUser) quit(msg string, propagate bool) {
 	// May already be cleaning up.
-	_, exists := u.Catbox.LocalUsers[u.ID]
-	if !exists {
+	if _, exists := u.Catbox.LocalUsers[u.ID]; !exists {
 		return
 	}
 	log.Printf("Losing user %s", u)
@@ -382,8 +381,7 @@ func (u *LocalUser) quit(msg string, propagate bool) {
 				continue
 			}
 
-			_, exists := toldClients[member.UID]
-			if exists {
+			if _, exists := toldClients[member.UID]; exists {
 				continue
 			}
 			toldClients[member.UID] = struct{}{}
@@ -393,7 +391,6 @@ func (u *LocalUser) quit(msg string, propagate bool) {
 				Command: "QUIT",
 				Params:  []string{msg},
 			})
-
 		}
 
 		channel.removeUser(u.User)
@@ -403,8 +400,7 @@ func (u *LocalUser) quit(msg string, propagate bool) {
 	}
 
 	// Ensure we tell the client (e.g., if in no channels).
-	_, exists = toldClients[u.User.UID]
-	if !exists {
+	if _, exists := toldClients[u.User.UID]; !exists {
 		u.messageUser(u.User, "QUIT", []string{msg})
 	}
 

main.go

@@ -15,12 +15,15 @@ import (
 	"time"
 
 	"github.com/horgh/irc"
+	"github.com/pkg/errors"
 )
 
 // Catbox holds the state for this local server.
 // I put everything global to a server in an instance of struct rather than
 // have global variables.
 type Catbox struct {
+	Args *Args
+
 	// ConfigFile is the path to the config file.
 	ConfigFile string
 
@@ -85,7 +88,9 @@ type Catbox struct {
 	ConnectionCount int
 
 	// Our TLS configuration.
-	TLSConfig *tls.Config
+	TLSConfig        *tls.Config
+	Certificate      *tls.Certificate
+	CertificateMutex *sync.RWMutex
 
 	// TCP plaintext and TLS listeners.
 	Listener    net.Listener
@@ -149,9 +154,9 @@ type Event struct {
 // EventType is a type of event we can tell the server about.
 type EventType int
 
-const (
+const ( // nolint: deadcode
 	// NullEvent is a default event. This means the event was not populated.
-	NullEvent EventType = iota
+	NullEvent EventType = iota // nolint: megacheck
 
 	// NewClientEvent means a new client connected.
 	NewClientEvent
@@ -209,7 +214,7 @@ func main() {
 			os.Args[0], err)
 	}
 
-	cb, err := newCatbox(args.ConfigFile)
+	cb, err := newCatbox(args)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -221,7 +226,7 @@ func main() {
 	if cb.Restart {
 		log.Printf("Shutdown completed. Restarting...")
 
-		if err := syscall.Exec(
+		if err := syscall.Exec( // nolint: gas
 			binPath,
 			[]string{
 				binPath,
@@ -239,9 +244,10 @@ func main() {
 	log.Printf("Server shutdown cleanly.")
 }
 
-func newCatbox(configFile string) (*Catbox, error) {
+func newCatbox(args *Args) (*Catbox, error) {
 	cb := Catbox{
-		ConfigFile:   configFile,
+		Args:         args,
+		ConfigFile:   args.ConfigFile,
 		LocalClients: make(map[uint64]*LocalClient),
 		LocalUsers:   make(map[uint64]*LocalUser),
 		LocalServers: make(map[uint64]*LocalServer),
@@ -259,7 +265,11 @@ func newCatbox(configFile string) (*Catbox, error) {
 		ToServerChan: make(chan Event),
 	}
 
-	cfg, err := checkAndParseConfig(configFile)
+	cfg, err := checkAndParseConfig(
+		args.ConfigFile,
+		args.ServerName,
+		args.SID,
+	)
 	if err != nil {
 		return nil, fmt.Errorf("configuration problem: %s", err)
 	}
@@ -267,34 +277,59 @@ func newCatbox(configFile string) (*Catbox, error) {
 
 	if cb.Config.ListenPortTLS != "-1" || cb.Config.CertificateFile != "" ||
 		cb.Config.KeyFile != "" {
-		cert, err := tls.LoadX509KeyPair(cb.Config.CertificateFile,
-			cb.Config.KeyFile)
-		if err != nil {
-			return nil, fmt.Errorf("unable to load certificate/key: %s", err)
-		}
-
+		cb.CertificateMutex = &sync.RWMutex{}
 		tlsConfig := &tls.Config{
-			Certificates:             []tls.Certificate{cert},
+			GetCertificate:           cb.getCertificate,
 			PreferServerCipherSuites: true,
 			SessionTicketsDisabled:   true,
-			// Unfortunately it is usual to use self signed certificates with IRC. We
-			// need this to connect to such servers.
-			InsecureSkipVerify: true,
-
-			// It would be nice to be able to be more restrictive on TLS version and
-			// ciphers, but in practice many clients do not support the strictest.
+			// It would be nice to be able to be more restrictive on ciphers, but in
+			// practice many clients do not support the strictest.
 			//CipherSuites: []uint16{
 			//	tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
 			//	tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
 			//},
-			//MinVersion: tls.VersionTLS12,
 		}
 		cb.TLSConfig = tlsConfig
+		if err := cb.loadCertificate(); err != nil {
+			return nil, err
+		}
 	}
 
 	return &cb, nil
 }
 
+// Return the current certificate.
+//
+// We use tls.Config's GetCertificate so that we can swap out the certificate
+// while running without having to recreate the net.Listener.
+func (cb *Catbox) getCertificate(
+	hello *tls.ClientHelloInfo,
+) (*tls.Certificate, error) {
+	cb.CertificateMutex.RLock()
+	defer cb.CertificateMutex.RUnlock()
+	if cb.Certificate == nil {
+		return nil, errors.New("certificate not set")
+	}
+	return cb.Certificate, nil
+}
+
+// Load the certificate and key from files.
+func (cb *Catbox) loadCertificate() error {
+	if cb.Config.CertificateFile == "" || cb.Config.KeyFile == "" {
+		return nil
+	}
+
+	cert, err := tls.LoadX509KeyPair(cb.Config.CertificateFile, cb.Config.KeyFile)
+	if err != nil {
+		return errors.Wrap(err, "error loading certificate/key")
+	}
+
+	cb.CertificateMutex.Lock()
+	defer cb.CertificateMutex.Unlock()
+	cb.Certificate = &cert
+	return nil
+}
+
 // start starts up the server.
 //
 // We open the TCP port, start goroutines, and then receive messages on our
@@ -385,7 +420,7 @@ func (cb *Catbox) start(listenFD int) error {
 		}
 	}()
 
-	log.Printf("catbox started")
+	log.Printf("catbox started (%s)", cb.Config.ServerName)
 	cb.eventLoop()
 
 	// We don't need to drain any channels. None close that will have any
@@ -467,7 +502,6 @@ func (cb *Catbox) eventLoop() {
 			}
 
 			log.Fatalf("Unexpected event: %d", evt.Type)
-
 		case <-cb.ShutdownChan:
 			return
 		}
@@ -606,16 +640,19 @@ func (cb *Catbox) introduceClient(conn net.Conn) {
 
 		client := NewLocalClient(cb, id, conn)
 
-		msgs := []string{
-			fmt.Sprintf("*** Processing your connection to %s",
-				cb.Config.ServerName),
-		}
+		cb.WG.Add(1)
+		go client.writeLoop()
+
+		sendAuthNotice(
+			client,
+			"*** Processing your connection to "+cb.Config.ServerName,
+		)
 
 		if client.isTLS() {
 			tlsVersion, tlsCipherSuite, err := client.getTLSState()
 			if err != nil {
 				log.Printf("Client %s: %s", client, err)
-				_ = conn.Close()
+				close(client.WriteChan)
 				return
 			}
 
@@ -629,48 +666,44 @@ func (cb *Catbox) introduceClient(conn net.Conn) {
 						"Your SSL/TLS version is %s. This server requires at least TLS 1.2. Contact %s if this is a problem.",
 						tlsVersion, cb.Config.AdminEmail)})
 				close(client.WriteChan)
-				cb.WG.Add(1)
-				go client.writeLoop()
 				return
 			}
 
-			msgs = append(msgs, fmt.Sprintf("*** Connected with %s (%s)", tlsVersion,
-				tlsCipherSuite))
+			sendAuthNotice(
+				client,
+				fmt.Sprintf("*** Connected with %s (%s)", tlsVersion, tlsCipherSuite),
+			)
 		}
 
-		msgs = append(msgs, "*** Looking up your hostname...")
+		sendAuthNotice(client, "*** Looking up your hostname...")
 
 		hostname := lookupHostname(context.TODO(), client.Conn.IP)
 		if len(hostname) > 0 {
-			msgs = append(msgs, "*** Found your hostname")
+			sendAuthNotice(client, "*** Found your hostname")
 			client.Hostname = hostname
 		} else {
-			msgs = append(msgs, "*** Couldn't look up your hostname")
-		}
-
-		for _, msg := range msgs {
-			client.WriteChan <- irc.Message{
-				Command: "NOTICE",
-				Params:  []string{"AUTH", msg},
-			}
+			sendAuthNotice(client, "*** Couldn't look up your hostname")
 		}
 
 		// Inform the main server goroutine about the client.
+		//
 		// Do this after sending any messages to the client's channel as it is
 		// possible the channel will be closed by the server (such as during
 		// shutdown).
 		cb.newEvent(Event{Type: NewClientEvent, Client: client})
 
-		// Start read goroutine (endlessly read messages from the client) and write
-		// goroutine (endlessly write messages to the client).
 		cb.WG.Add(1)
 		go client.readLoop()
-
-		cb.WG.Add(1)
-		go client.writeLoop()
 	}()
 }
 
+func sendAuthNotice(c *LocalClient, m string) {
+	c.WriteChan <- irc.Message{
+		Command: "NOTICE",
+		Params:  []string{"AUTH", m},
+	}
+}
+
 // Return true if the server is shutting down.
 func (cb *Catbox) isShuttingDown() bool {
 	// No messages get sent to this channel, so if we receive a message on it,
@@ -999,7 +1032,7 @@ func (cb *Catbox) connectToServer(linkInfo *ServerDefinition) {
 			tlsVersion, tlsCipherSuite, err := client.getTLSState()
 			if err != nil {
 				log.Printf("Disconnecting from server %s: %s", linkInfo.Name, err)
-				_ = conn.Close()
+				_ = conn.Close() // nolint: gosec
 				return
 			}
 
@@ -1007,7 +1040,7 @@ func (cb *Catbox) connectToServer(linkInfo *ServerDefinition) {
 				cb.noticeOpers(fmt.Sprintf(
 					"Disconnecting from %s because of TLS version: %s", linkInfo.Name,
 					tlsVersion))
-				_ = conn.Close()
+				_ = conn.Close() // nolint: gosec
 				return
 			}
 
@@ -1030,7 +1063,7 @@ func (cb *Catbox) connectToServer(linkInfo *ServerDefinition) {
 	}()
 }
 
-// newEvent tells the server something happens.
+// newEvent tells the server something happened.
 //
 // Any goroutine can call this function.
 //
@@ -1347,7 +1380,7 @@ func (cb *Catbox) createWHOISResponse(user, replyUser *User,
 
 	// 317 RPL_WHOISIDLE. Only if local.
 	if user.isLocal() {
-		idleDuration := time.Now().Sub(user.LocalUser.LastMessageTime)
+		idleDuration := time.Since(user.LocalUser.LastMessageTime)
 		idleSeconds := int(idleDuration.Seconds())
 
 		msgs = append(msgs, irc.Message{
@@ -1459,7 +1492,11 @@ func (cb *Catbox) quitRemoteUser(u *User, message string) {
 //
 // We could close listeners and open new ones. But nah.
 func (cb *Catbox) rehash(byUser *User) {
-	cfg, err := checkAndParseConfig(cb.ConfigFile)
+	cfg, err := checkAndParseConfig(
+		cb.ConfigFile,
+		cb.Args.ServerName,
+		cb.Args.SID,
+	)
 	if err != nil {
 		cb.noticeOpers(fmt.Sprintf("Rehash: Configuration problem: %s", err))
 		return
@@ -1469,8 +1506,13 @@ func (cb *Catbox) rehash(byUser *User) {
 	// ListenHost
 	// ListenPort
 	// ListenPortTLS
-	// CertificateFile
-	// KeyFile
+
+	cb.Config.CertificateFile = cfg.CertificateFile
+	cb.Config.KeyFile = cfg.KeyFile
+	if err := cb.loadCertificate(); err != nil {
+		cb.noticeOpers(fmt.Sprintf("Error loading certificate/key: %s", err))
+		log.Printf("%+v", err)
+	}
 
 	// Changing these may require relinking servers as they are part of the
 	// link handshake:

net.go

@@ -6,6 +6,8 @@ import (
 	"log"
 	"net"
 	"time"
+
+	"github.com/pkg/errors"
 )
 
 // Conn is a connection to a client/server
@@ -45,12 +47,15 @@ func (c Conn) RemoteAddr() net.Addr {
 // Read reads a line from the connection.
 func (c Conn) Read() (string, error) {
 	if err := c.conn.SetReadDeadline(time.Now().Add(c.ioWait)); err != nil {
-		return "", fmt.Errorf("unable to set deadline: %s", err)
+		// Do not treat this as fatal. There can be something available to read in
+		// the buffer which we want to see.
+		log.Printf("Error setting read deadline: %s", err)
 	}
 
 	line, err := c.rw.ReadString('\n')
 	if err != nil {
-		return "", err
+		// There may be something read even with error.
+		return line, errors.Wrap(err, "error reading")
 	}
 
 	return line, nil
@@ -59,7 +64,7 @@ func (c Conn) Read() (string, error) {
 // Write writes a string to the connection
 func (c Conn) Write(s string) error {
 	if err := c.conn.SetWriteDeadline(time.Now().Add(c.ioWait)); err != nil {
-		return fmt.Errorf("unable to set deadline: %s", err)
+		return fmt.Errorf("error setting write deadline: %s", err)
 	}
 
 	sz, err := c.rw.WriteString(s)

server.go

@@ -45,10 +45,6 @@ func (s *Server) isLocal() bool {
 	return s.LocalServer != nil
 }
 
-func (s *Server) isRemote() bool {
-	return !s.isLocal()
-}
-
 // Turn our capabilities into a single space separated string.
 func (s *Server) capabsString() string {
 	str := ""

tests/catbox_test.go

@@ -0,0 +1,309 @@
+package tests
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+	"sync"
+	"syscall"
+	"time"
+
+	"github.com/pkg/errors"
+)
+
+// Catbox holds information about a harnessed catbox.
+type Catbox struct {
+	Name      string
+	SID       string
+	Port      uint16
+	Stderr    io.ReadCloser
+	Stdout    io.ReadCloser
+	Command   *exec.Cmd
+	WaitGroup *sync.WaitGroup
+	ConfigDir string
+	LogChan   <-chan string
+}
+
+const catboxDir = ".."
+
+func harnessCatbox(
+	name,
+	sid string,
+) (*Catbox, error) {
+	if err := buildCatbox(); err != nil {
+		return nil, fmt.Errorf("error building catbox: %s", err)
+	}
+
+	catbox, err := startCatbox(name, sid)
+	if err != nil {
+		return nil, fmt.Errorf("error starting catbox: %s", err)
+	}
+
+	var wg sync.WaitGroup
+
+	logChan := make(chan string, 1024)
+
+	wg.Add(1)
+	go logReader(&wg, fmt.Sprintf("%s stderr", name), catbox.Stderr, logChan)
+
+	wg.Add(1)
+	go logReader(&wg, fmt.Sprintf("%s stdout", name), catbox.Stdout, logChan)
+
+	wg.Add(1)
+	go func() {
+		defer wg.Done()
+		if err := catbox.Command.Wait(); err != nil {
+			log.Printf("catbox exited: %s", err)
+		}
+	}()
+
+	catbox.WaitGroup = &wg
+	catbox.LogChan = logChan
+
+	// It is important to wait for catbox to fully start. If we don't, then
+	// certain things we do in tests will not work well. For example, trying to
+	// reload the conf by sending a SIGHUP will kill the process.
+	startedRE := regexp.MustCompile(
+		`^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2} catbox started$`)
+
+	if !waitForLog(logChan, startedRE) {
+		catbox.stop()
+		return nil, fmt.Errorf("error waiting for catbox to start")
+	}
+
+	return catbox, nil
+}
+
+var builtCatbox bool
+
+func buildCatbox() error {
+	if builtCatbox {
+		return nil
+	}
+
+	cmd := exec.Command("go", "build")
+	cmd.Dir = catboxDir
+
+	log.Printf("Running %s in [%s]...", cmd.Args, cmd.Dir)
+	output, err := cmd.CombinedOutput()
+	if err != nil {
+		return fmt.Errorf("error building catbox: %s: %s", err, output)
+	}
+
+	builtCatbox = true
+	return nil
+}
+
+func startCatbox(
+	name,
+	sid string,
+) (*Catbox, error) {
+	tmpDir, err := ioutil.TempDir("", "boxcat-")
+	if err != nil {
+		return nil, fmt.Errorf("error retrieving a temporary directory: %s", err)
+	}
+
+	catboxConf := filepath.Join(tmpDir, "catbox.conf")
+
+	listener, port, err := getRandomPort()
+	if err != nil {
+		_ = os.RemoveAll(tmpDir)
+		return nil, fmt.Errorf("error opening random port: %s", err)
+	}
+
+	catbox, err := runCatbox(catboxConf, listener, port, name, sid)
+	if err != nil {
+		_ = os.RemoveAll(tmpDir)
+		_ = listener.Close()
+		return nil, fmt.Errorf("error running catbox: %s", err)
+	}
+
+	catbox.ConfigDir = tmpDir
+	return catbox, nil
+}
+
+func getRandomPort() (net.Listener, uint16, error) {
+	ln, err := net.Listen("tcp4", "127.0.0.1:")
+	if err != nil {
+		return nil, 0, fmt.Errorf("error opening a random port: %s", err)
+	}
+
+	addr := ln.Addr().String()
+	colonIndex := strings.Index(addr, ":")
+	portString := addr[colonIndex+1:]
+	port, err := strconv.ParseUint(portString, 10, 16)
+	if err != nil {
+		_ = ln.Close()
+		return nil, 0, fmt.Errorf("error parsing port: %s", err)
+	}
+
+	return ln, uint16(port), nil
+}
+
+func runCatbox(
+	conf string,
+	ln net.Listener,
+	port uint16,
+	name,
+	sid string,
+) (*Catbox, error) {
+	var extra string
+	if err := writeConf(conf, name, sid, extra); err != nil {
+		return nil, err
+	}
+
+	cmd := exec.Command("./catbox",
+		"-conf", conf,
+		"-listen-fd", "3",
+	)
+
+	cmd.Dir = catboxDir
+
+	f, err := ln.(*net.TCPListener).File()
+	if err != nil {
+		return nil, fmt.Errorf("error retrieving listener file: %s", err)
+	}
+	cmd.ExtraFiles = []*os.File{f}
+
+	stderr, err := cmd.StderrPipe()
+	if err != nil {
+		return nil, fmt.Errorf("error retrieving stderr pipe: %s", err)
+	}
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		_ = stderr.Close()
+		return nil, fmt.Errorf("error retrieving stdout pipe: %s", err)
+	}
+
+	if err := cmd.Start(); err != nil {
+		_ = stderr.Close()
+		_ = stdout.Close()
+		return nil, fmt.Errorf("error starting: %s", err)
+	}
+
+	return &Catbox{
+		Name:    name,
+		Port:    port,
+		Command: cmd,
+		Stderr:  stderr,
+		Stdout:  stdout,
+	}, nil
+}
+
+func writeConf(
+	filename,
+	serverName,
+	sid,
+	extra string,
+) error {
+	// -1 because we pass in fd.
+	buf := fmt.Sprintf(`
+listen-port = %d
+server-name = %s
+ts6-sid = %s
+connect-attempt-time = 100ms
+%s
+`,
+		-1,
+		serverName,
+		sid,
+		extra,
+	)
+
+	if err := ioutil.WriteFile(filename, []byte(buf), 0644); err != nil {
+		return fmt.Errorf("error writing conf: %s: %s", serverName, err)
+	}
+
+	return nil
+}
+
+func logReader(
+	wg *sync.WaitGroup,
+	prefix string,
+	r io.Reader,
+	ch chan<- string,
+) {
+	defer wg.Done()
+
+	scanner := bufio.NewScanner(r)
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		line = strings.TrimSpace(line)
+		if line == "" {
+			continue
+		}
+
+		log.Printf("%s: %s", prefix, line)
+
+		select {
+		case ch <- line:
+		default:
+		}
+	}
+
+	// Don't fail on scanner.Err(). We expect the process to go away at any time
+	// so we can see errors like "file already closed".
+}
+
+func (c *Catbox) stop() {
+	if err := c.Command.Process.Kill(); err != nil {
+		log.Printf("error killing catbox: %s", err)
+	}
+	c.WaitGroup.Wait()
+
+	if err := os.RemoveAll(c.ConfigDir); err != nil {
+		log.Fatalf("error cleaning up temporary directory: %s", err)
+	}
+}
+
+func (c *Catbox) linkServer(other *Catbox) error {
+	conf := filepath.Join(c.ConfigDir, "catbox.conf")
+	serversConf := filepath.Join(c.ConfigDir, "servers.conf")
+	extra := fmt.Sprintf("servers-config = %s", serversConf)
+
+	if err := writeConf(conf, c.Name, c.SID, extra); err != nil {
+		return err
+	}
+
+	serversConfContent := fmt.Sprintf(`%s = %s,%d,%s,0`,
+		other.Name, "127.0.0.1", other.Port, "testing")
+
+	if err := ioutil.WriteFile(serversConf, []byte(serversConfContent),
+		0644); err != nil {
+		return fmt.Errorf("error writing server conf: %s: %s", serversConf, err)
+	}
+
+	return c.rehash()
+}
+
+func (c *Catbox) rehash() error {
+	return errors.Wrap(
+		c.Command.Process.Signal(syscall.SIGHUP),
+		"error sending SIGHUP",
+	)
+}
+
+func waitForLog(ch <-chan string, re *regexp.Regexp) bool {
+	timeoutChan := time.After(10 * time.Second)
+
+	for {
+		select {
+		case s := <-ch:
+			if re.MatchString(s) {
+				return true
+			}
+		case <-timeoutChan:
+			return false
+		}
+	}
+}

tests/client_test.go

@@ -0,0 +1,295 @@
+package tests
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/horgh/irc"
+)
+
+// Client represents a client connection.
+type Client struct {
+	nick       string
+	serverHost string
+	serverPort uint16
+
+	writeTimeout time.Duration
+	readTimeout  time.Duration
+
+	conn net.Conn
+	rw   *bufio.ReadWriter
+
+	recvChan chan irc.Message
+	sendChan chan irc.Message
+	errChan  chan error
+	doneChan chan struct{}
+	wg       *sync.WaitGroup
+
+	channels map[string]struct{}
+	mutex    *sync.Mutex
+}
+
+// NewClient creates a Client.
+func NewClient(nick, serverHost string, serverPort uint16) *Client {
+	return &Client{
+		nick:       nick,
+		serverHost: serverHost,
+		serverPort: serverPort,
+
+		writeTimeout: 30 * time.Second,
+		readTimeout:  100 * time.Millisecond,
+
+		channels: map[string]struct{}{},
+		mutex:    &sync.Mutex{},
+	}
+}
+
+// Start starts a client's connection and registers.
+//
+// The client responds to PING commands.
+//
+// All messages received from the server will be sent on the receive channel.
+//
+// Messages you send to the send channel will be sent to the server.
+//
+// If an error occurs, we send a message on the error channel. If you receive a
+// message on that channel, you must stop the client.
+//
+// The caller must call Stop() to clean up the client.
+func (c *Client) Start() (
+	<-chan irc.Message,
+	chan<- irc.Message,
+	<-chan error,
+	error,
+) {
+	if err := c.connect(); err != nil {
+		return nil, nil, nil, fmt.Errorf("error connecting: %s", err)
+	}
+
+	if err := c.writeMessage(irc.Message{
+		Command: "NICK",
+		Params:  []string{c.nick},
+	}); err != nil {
+		_ = c.conn.Close()
+		return nil, nil, nil, err
+	}
+
+	if err := c.writeMessage(irc.Message{
+		Command: "USER",
+		Params:  []string{c.nick, "0", "*", c.nick},
+	}); err != nil {
+		_ = c.conn.Close()
+		return nil, nil, nil, err
+	}
+
+	c.recvChan = make(chan irc.Message, 512)
+	c.sendChan = make(chan irc.Message, 512)
+	c.errChan = make(chan error, 512)
+	c.doneChan = make(chan struct{})
+
+	c.wg = &sync.WaitGroup{}
+
+	c.wg.Add(1)
+	go c.reader(c.recvChan)
+
+	c.wg.Add(1)
+	go c.writer(c.sendChan)
+
+	return c.recvChan, c.sendChan, c.errChan, nil
+}
+
+// connect opens a new connection to the server.
+func (c *Client) connect() error {
+	dialer := &net.Dialer{
+		Timeout:   30 * time.Second,
+		KeepAlive: 30 * time.Second,
+	}
+
+	conn, err := dialer.Dial("tcp", fmt.Sprintf("%s:%d", c.serverHost,
+		c.serverPort))
+	if err != nil {
+		return fmt.Errorf("error dialing: %s", err)
+	}
+
+	c.conn = conn
+	c.rw = bufio.NewReadWriter(bufio.NewReader(c.conn), bufio.NewWriter(c.conn))
+	return nil
+}
+
+func (c Client) reader(recvChan chan<- irc.Message) {
+	defer c.wg.Done()
+
+	for {
+		select {
+		case <-c.doneChan:
+			close(recvChan)
+			return
+		default:
+		}
+
+		m, err := c.readMessage()
+		if err != nil {
+			// If we time out waiting for a read to succeed, just ignore it and try
+			// again. We want a short timeout on that so we frequently check whether
+			// we should end.
+			//
+			// There's no accessible error variable to compare with
+			if strings.Contains(err.Error(), "i/o timeout") {
+				continue
+			}
+
+			c.errChan <- fmt.Errorf("error reading message: %s", err)
+			close(recvChan)
+			return
+		}
+
+		if m.Command == "PING" {
+			if err := c.writeMessage(irc.Message{
+				Command: "PONG",
+				Params:  []string{m.Params[0]},
+			}); err != nil {
+				c.errChan <- fmt.Errorf("error sending pong: %s", err)
+				close(recvChan)
+				return
+			}
+		}
+
+		if m.Command == "JOIN" {
+			if m.SourceNick() == c.nick {
+				c.mutex.Lock()
+				c.channels[m.Params[0]] = struct{}{}
+				c.mutex.Unlock()
+			}
+		}
+
+		recvChan <- m
+	}
+}
+
+func (c Client) writer(sendChan <-chan irc.Message) {
+	defer c.wg.Done()
+
+LOOP:
+	for {
+		select {
+		case <-c.doneChan:
+			break LOOP
+		case m, ok := <-sendChan:
+			if !ok {
+				break
+			}
+			if err := c.writeMessage(m); err != nil {
+				c.errChan <- fmt.Errorf("error writing message: %s", err)
+				break LOOP
+			}
+		}
+	}
+
+	for range sendChan {
+	}
+}
+
+// writeMessage writes an IRC message to the connection.
+func (c Client) writeMessage(m irc.Message) error {
+	buf, err := m.Encode()
+	if err != nil && err != irc.ErrTruncated {
+		return fmt.Errorf("unable to encode message: %s", err)
+	}
+
+	if err := c.conn.SetWriteDeadline(time.Now().Add(
+		c.writeTimeout)); err != nil {
+		return fmt.Errorf("unable to set deadline: %s", err)
+	}
+
+	sz, err := c.rw.WriteString(buf)
+	if err != nil {
+		return err
+	}
+
+	if sz != len(buf) {
+		return fmt.Errorf("short write")
+	}
+
+	if err := c.rw.Flush(); err != nil {
+		return fmt.Errorf("flush error: %s", err)
+	}
+
+	log.Printf("client %s: sent: %s", c.nick, strings.TrimRight(buf, "\r\n"))
+	return nil
+}
+
+// readMessage reads a line from the connection and parses it as an IRC message.
+func (c Client) readMessage() (irc.Message, error) {
+	if err := c.conn.SetReadDeadline(time.Now().Add(c.readTimeout)); err != nil {
+		return irc.Message{}, fmt.Errorf("unable to set deadline: %s", err)
+	}
+
+	line, err := c.rw.ReadString('\n')
+	if err != nil {
+		return irc.Message{}, err
+	}
+
+	log.Printf("client %s: read: %s", c.nick, strings.TrimRight(line, "\r\n"))
+
+	m, err := irc.ParseMessage(line)
+	if err != nil && err != irc.ErrTruncated {
+		return irc.Message{}, fmt.Errorf("unable to parse message: %s: %s", line,
+			err)
+	}
+
+	return m, nil
+}
+
+// Stop shuts down the client and cleans up.
+//
+// You must not send any messages on the send channel after calling this
+// function.
+func (c *Client) Stop() {
+	// Tell reader and writer to end.
+	close(c.doneChan)
+
+	// We won't be sending anything further to writer. Let it clean up.
+	close(c.sendChan)
+
+	// Wait for reader and writer to end.
+	c.wg.Wait()
+
+	// We know the reader and writer won't be sending on the error channel any
+	// more.
+	close(c.errChan)
+
+	_ = c.conn.Close()
+
+	for range c.recvChan {
+	}
+	for range c.errChan {
+	}
+}
+
+// GetNick retrieves the client's nick.
+func (c Client) GetNick() string { return c.nick }
+
+// GetReceiveChannel retrieves the receive channel.
+func (c Client) GetReceiveChannel() <-chan irc.Message { return c.recvChan }
+
+// GetSendChannel retrieves the send channel.
+func (c Client) GetSendChannel() chan<- irc.Message { return c.sendChan }
+
+// GetErrorChannel retrieves the error channel.
+func (c Client) GetErrorChannel() <-chan error { return c.errChan }
+
+// GetChannels retrieves the IRC channels the client is on.
+func (c Client) GetChannels() []string {
+	var channels []string
+	c.mutex.Lock()
+	for k := range c.channels {
+		channels = append(channels, k)
+	}
+	c.mutex.Unlock()
+	return channels
+}

tests/message_test.go

@@ -0,0 +1,80 @@
+package tests
+
+import (
+	"fmt"
+	"log"
+	"testing"
+	"time"
+
+	"github.com/horgh/irc"
+)
+
+// Test one client sending a message to another client.
+func TestPRIVMSG(t *testing.T) {
+	catbox, err := harnessCatbox("irc.example.org", "000")
+	if err != nil {
+		t.Fatalf("error harnessing catbox: %s", err)
+	}
+	defer catbox.stop()
+
+	client1 := NewClient("client1", "127.0.0.1", catbox.Port)
+	recvChan1, sendChan1, _, err := client1.Start()
+	if err != nil {
+		t.Fatalf("error starting client: %s", err)
+	}
+	defer client1.Stop()
+
+	client2 := NewClient("client2", "127.0.0.1", catbox.Port)
+	recvChan2, _, _, err := client2.Start()
+	if err != nil {
+		t.Fatalf("error starting client: %s", err)
+	}
+	defer client2.Stop()
+
+	if waitForMessage(t, recvChan1, irc.Message{Command: irc.ReplyWelcome},
+		"welcome from %s", client1.GetNick()) == nil {
+		t.Fatalf("client1 did not get welcome")
+	}
+	if waitForMessage(t, recvChan2, irc.Message{Command: irc.ReplyWelcome},
+		"welcome from %s", client2.GetNick()) == nil {
+		t.Fatalf("client2 did not get welcome")
+	}
+
+	sendChan1 <- irc.Message{
+		Command: "PRIVMSG",
+		Params:  []string{client2.GetNick(), "hi there"},
+	}
+
+	if waitForMessage(
+		t,
+		recvChan2,
+		irc.Message{
+			Command: "PRIVMSG",
+			Params:  []string{client2.GetNick(), "hi there"},
+		},
+		"%s received PRIVMSG from %s", client1.GetNick(), client2.GetNick(),
+	) == nil {
+		t.Fatalf("client1 did not receive message from client2")
+	}
+}
+
+func waitForMessage(
+	t *testing.T,
+	ch <-chan irc.Message,
+	want irc.Message,
+	format string,
+	a ...interface{},
+) *irc.Message {
+	for {
+		select {
+		case <-time.After(10 * time.Second):
+			t.Logf("timeout waiting for message: %s", want)
+			return nil
+		case got := <-ch:
+			if got.Command == want.Command {
+				log.Printf("got command: %s", fmt.Sprintf(format, a...))
+				return &got
+			}
+		}
+	}
+}

tests/mode_test.go

@@ -0,0 +1,186 @@
+package tests
+
+import (
+	"regexp"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/horgh/irc"
+	"github.com/stretchr/testify/require"
+)
+
+// Test that clients get TS when running MODE on a channel they are on.
+//
+// Also test that the TS gets propagated between servers and a client on
+// another server gets the same TS
+func TestMODETS(t *testing.T) {
+	catbox1, err := harnessCatbox("irc1.example.org", "001")
+	require.NoError(t, err, "harness catbox")
+	defer catbox1.stop()
+
+	catbox2, err := harnessCatbox("irc2.example.org", "002")
+	require.NoError(t, err, "harness catbox")
+	defer catbox2.stop()
+
+	err = catbox1.linkServer(catbox2)
+	require.NoError(t, err, "link catbox1 to catbox2")
+	err = catbox2.linkServer(catbox1)
+	require.NoError(t, err, "link catbox2 to catbox1")
+
+	// Wait until we link.
+	//
+	// Retry rehashing as I observed a failing build where the second server did
+	// not receive the SIGHUP, yet didn't exit. I'm not sure how that can happen
+	// other than perhaps a race in signal.Notify() such that the signal handler
+	// is registered so the HUP gets received but not delivered to the channel.
+	linkRE := regexp.MustCompile(`Established link to irc2\.`)
+	var attempts int
+	for {
+		if waitForLog(catbox1.LogChan, linkRE) {
+			break
+		}
+		attempts++
+		if attempts >= 5 {
+			require.Fail(t, "failed to link")
+		}
+		require.NoError(t, err, catbox1.rehash(), "rehash catbox1")
+		require.NoError(t, err, catbox2.rehash(), "rehash catbox2")
+	}
+
+	client1 := NewClient("client1", "127.0.0.1", catbox1.Port)
+	recvChan1, sendChan1, _, err := client1.Start()
+	require.NoError(t, err, "start client")
+	defer client1.Stop()
+
+	require.NotNil(
+		t,
+		waitForMessage(
+			t,
+			recvChan1,
+			irc.Message{Command: irc.ReplyWelcome},
+			"welcome from %s",
+			client1.GetNick(),
+		),
+		"client gets welcome",
+	)
+
+	sendChan1 <- irc.Message{
+		Command: "JOIN",
+		Params:  []string{"#test"},
+	}
+	require.NotNil(
+		t,
+		waitForMessage(
+			t,
+			recvChan1,
+			irc.Message{
+				Command: "JOIN",
+				Params:  []string{"#test"},
+			},
+			"%s received JOIN #test", client1.GetNick(),
+		),
+		"client gets JOIN message",
+	)
+
+	sendChan1 <- irc.Message{
+		Command: "MODE",
+		Params:  []string{"#test"},
+	}
+	creationTimeMessage := waitForMessage(
+		t,
+		recvChan1,
+		irc.Message{
+			Command: "329",
+		},
+		"%s received 329 response after MODE command", client1.GetNick(),
+	)
+	require.NotNil(t, creationTimeMessage, "client receives 329 response")
+
+	creationTimeString := ""
+	creationTime := time.Time{}
+	if len(creationTimeMessage.Params) >= 3 {
+		ct, err := strconv.ParseInt(creationTimeMessage.Params[2], 10, 64)
+		require.NoError(t, err, "parse 329 response unixtime")
+		creationTimeString = creationTimeMessage.Params[2]
+		creationTime = time.Unix(ct, 0)
+	}
+
+	messageIsEqual(
+		t,
+		creationTimeMessage,
+		&irc.Message{
+			Prefix:  catbox1.Name,
+			Command: "329",
+			Params:  []string{client1.GetNick(), "#test", creationTimeString},
+		},
+	)
+
+	require.True(
+		t,
+		time.Since(creationTime) <= 30*time.Second,
+		"channel creation time is new enough",
+	)
+
+	// Try a client on the other server and ensure they get the same time.
+
+	client2 := NewClient("client2", "127.0.0.1", catbox2.Port)
+	recvChan2, sendChan2, _, err := client2.Start()
+	require.NoError(t, err, "start client 2")
+	defer client2.Stop()
+
+	require.NotNil(
+		t,
+		waitForMessage(
+			t,
+			recvChan2,
+			irc.Message{Command: irc.ReplyWelcome},
+			"welcome from %s",
+			client2.GetNick(),
+		),
+		"client 2 gets welcome",
+	)
+
+	sendChan2 <- irc.Message{
+		Command: "JOIN",
+		Params:  []string{"#test"},
+	}
+	require.NotNil(
+		t,
+		waitForMessage(
+			t,
+			recvChan2,
+			irc.Message{
+				Command: "JOIN",
+				Params:  []string{"#test"},
+			},
+			"%s received JOIN #test",
+			client2.GetNick(),
+		),
+		"client 2 gets JOIN message",
+	)
+
+	sendChan2 <- irc.Message{
+		Command: "MODE",
+		Params:  []string{"#test"},
+	}
+	creationTimeMessage2 := waitForMessage(
+		t,
+		recvChan2,
+		irc.Message{
+			Command: "329",
+		},
+		"%s received 329 response after MODE command", client2.GetNick(),
+	)
+	require.NotNil(t, creationTimeMessage, "client 2 receives 329 response")
+
+	messageIsEqual(
+		t,
+		creationTimeMessage2,
+		&irc.Message{
+			Prefix:  catbox2.Name,
+			Command: "329",
+			Params:  []string{client2.GetNick(), "#test", creationTimeString},
+		},
+	)
+}

tests/util_test.go

@@ -0,0 +1,32 @@
+package tests
+
+import (
+	"testing"
+
+	"github.com/horgh/irc"
+)
+
+func messageIsEqual(t *testing.T, got, wanted *irc.Message) {
+	if got == nil {
+		t.Fatalf("received nil message")
+	}
+
+	if got.Prefix != wanted.Prefix {
+		t.Fatalf("message prefix = %s, wanted %s", got.Prefix, wanted.Prefix)
+	}
+
+	if got.Command != wanted.Command {
+		t.Fatalf("message command = %s, wanted %s", got.Command, wanted.Command)
+	}
+
+	if len(got.Params) != len(wanted.Params) {
+		t.Fatalf("message number of params = %d, wanted %d", len(got.Params),
+			len(wanted.Params))
+	}
+
+	for i := range wanted.Params {
+		if got.Params[i] != wanted.Params[i] {
+			t.Fatalf("param %d = %s, wanted %s", i, got.Params[i], wanted.Params[i])
+		}
+	}
+}

user.go

@@ -67,10 +67,6 @@ func (u *User) nickUhost() string {
 	return fmt.Sprintf("%s!%s@%s", u.DisplayNick, u.Username, u.Hostname)
 }
 
-func (u *User) userHost() string {
-	return fmt.Sprintf("%s@%s", u.Username, u.Hostname)
-}
-
 func (u *User) isOperator() bool {
 	_, exists := u.Modes['o']
 	return exists

vendor/github.com/horgh/config/COPYING

@@ -1,661 +0,0 @@
-                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU Affero General Public License is a free, copyleft license for
-software and other kinds of works, specifically designed to ensure
-cooperation with the community in the case of network server software.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-our General Public Licenses are intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  Developers that use our General Public Licenses protect your rights
-with two steps: (1) assert copyright on the software, and (2) offer
-you this License which gives you legal permission to copy, distribute
-and/or modify the software.
-
-  A secondary benefit of defending all users' freedom is that
-improvements made in alternate versions of the program, if they
-receive widespread use, become available for other developers to
-incorporate.  Many developers of free software are heartened and
-encouraged by the resulting cooperation.  However, in the case of
-software used on network servers, this result may fail to come about.
-The GNU General Public License permits making a modified version and
-letting the public access it on a server without ever releasing its
-source code to the public.
-
-  The GNU Affero General Public License is designed specifically to
-ensure that, in such cases, the modified source code becomes available
-to the community.  It requires the operator of a network server to
-provide the source code of the modified version running there to the
-users of that server.  Therefore, public use of a modified version, on
-a publicly accessible server, gives the public access to the source
-code of the modified version.
-
-  An older license, called the Affero General Public License and
-published by Affero, was designed to accomplish similar goals.  This is
-a different license, not a version of the Affero GPL, but Affero has
-released a new version of the Affero GPL which permits relicensing under
-this license.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                       TERMS AND CONDITIONS
-
-  0. Definitions.
-
-  "This License" refers to version 3 of the GNU Affero General Public License.
-
-  "Copyright" also means copyright-like laws that apply to other kinds of
-works, such as semiconductor masks.
-
-  "The Program" refers to any copyrightable work licensed under this
-License.  Each licensee is addressed as "you".  "Licensees" and
-"recipients" may be individuals or organizations.
-
-  To "modify" a work means to copy from or adapt all or part of the work
-in a fashion requiring copyright permission, other than the making of an
-exact copy.  The resulting work is called a "modified version" of the
-earlier work or a work "based on" the earlier work.
-
-  A "covered work" means either the unmodified Program or a work based
-on the Program.
-
-  To "propagate" a work means to do anything with it that, without
-permission, would make you directly or secondarily liable for
-infringement under applicable copyright law, except executing it on a
-computer or modifying a private copy.  Propagation includes copying,
-distribution (with or without modification), making available to the
-public, and in some countries other activities as well.
-
-  To "convey" a work means any kind of propagation that enables other
-parties to make or receive copies.  Mere interaction with a user through
-a computer network, with no transfer of a copy, is not conveying.
-
-  An interactive user interface displays "Appropriate Legal Notices"
-to the extent that it includes a convenient and prominently visible
-feature that (1) displays an appropriate copyright notice, and (2)
-tells the user that there is no warranty for the work (except to the
-extent that warranties are provided), that licensees may convey the
-work under this License, and how to view a copy of this License.  If
-the interface presents a list of user commands or options, such as a
-menu, a prominent item in the list meets this criterion.
-
-  1. Source Code.
-
-  The "source code" for a work means the preferred form of the work
-for making modifications to it.  "Object code" means any non-source
-form of a work.
-
-  A "Standard Interface" means an interface that either is an official
-standard defined by a recognized standards body, or, in the case of
-interfaces specified for a particular programming language, one that
-is widely used among developers working in that language.
-
-  The "System Libraries" of an executable work include anything, other
-than the work as a whole, that (a) is included in the normal form of
-packaging a Major Component, but which is not part of that Major
-Component, and (b) serves only to enable use of the work with that
-Major Component, or to implement a Standard Interface for which an
-implementation is available to the public in source code form.  A
-"Major Component", in this context, means a major essential component
-(kernel, window system, and so on) of the specific operating system
-(if any) on which the executable work runs, or a compiler used to
-produce the work, or an object code interpreter used to run it.
-
-  The "Corresponding Source" for a work in object code form means all
-the source code needed to generate, install, and (for an executable
-work) run the object code and to modify the work, including scripts to
-control those activities.  However, it does not include the work's
-System Libraries, or general-purpose tools or generally available free
-programs which are used unmodified in performing those activities but
-which are not part of the work.  For example, Corresponding Source
-includes interface definition files associated with source files for
-the work, and the source code for shared libraries and dynamically
-linked subprograms that the work is specifically designed to require,
-such as by intimate data communication or control flow between those
-subprograms and other parts of the work.
-
-  The Corresponding Source need not include anything that users
-can regenerate automatically from other parts of the Corresponding
-Source.
-
-  The Corresponding Source for a work in source code form is that
-same work.
-
-  2. Basic Permissions.
-
-  All rights granted under this License are granted for the term of
-copyright on the Program, and are irrevocable provided the stated
-conditions are met.  This License explicitly affirms your unlimited
-permission to run the unmodified Program.  The output from running a
-covered work is covered by this License only if the output, given its
-content, constitutes a covered work.  This License acknowledges your
-rights of fair use or other equivalent, as provided by copyright law.
-
-  You may make, run and propagate covered works that you do not
-convey, without conditions so long as your license otherwise remains
-in force.  You may convey covered works to others for the sole purpose
-of having them make modifications exclusively for you, or provide you
-with facilities for running those works, provided that you comply with
-the terms of this License in conveying all material for which you do
-not control copyright.  Those thus making or running the covered works
-for you must do so exclusively on your behalf, under your direction
-and control, on terms that prohibit them from making any copies of
-your copyrighted material outside their relationship with you.
-
-  Conveying under any other circumstances is permitted solely under
-the conditions stated below.  Sublicensing is not allowed; section 10
-makes it unnecessary.
-
-  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
-
-  No covered work shall be deemed part of an effective technological
-measure under any applicable law fulfilling obligations under article
-11 of the WIPO copyright treaty adopted on 20 December 1996, or
-similar laws prohibiting or restricting circumvention of such
-measures.
-
-  When you convey a covered work, you waive any legal power to forbid
-circumvention of technological measures to the extent such circumvention
-is effected by exercising rights under this License with respect to
-the covered work, and you disclaim any intention to limit operation or
-modification of the work as a means of enforcing, against the work's
-users, your or third parties' legal rights to forbid circumvention of
-technological measures.
-
-  4. Conveying Verbatim Copies.
-
-  You may convey verbatim copies of the Program's source code as you
-receive it, in any medium, provided that you conspicuously and
-appropriately publish on each copy an appropriate copyright notice;
-keep intact all notices stating that this License and any
-non-permissive terms added in accord with section 7 apply to the code;
-keep intact all notices of the absence of any warranty; and give all
-recipients a copy of this License along with the Program.
-
-  You may charge any price or no price for each copy that you convey,
-and you may offer support or warranty protection for a fee.
-
-  5. Conveying Modified Source Versions.
-
-  You may convey a work based on the Program, or the modifications to
-produce it from the Program, in the form of source code under the
-terms of section 4, provided that you also meet all of these conditions:
-
-    a) The work must carry prominent notices stating that you modified
-    it, and giving a relevant date.
-
-    b) The work must carry prominent notices stating that it is
-    released under this License and any conditions added under section
-    7.  This requirement modifies the requirement in section 4 to
-    "keep intact all notices".
-
-    c) You must license the entire work, as a whole, under this
-    License to anyone who comes into possession of a copy.  This
-    License will therefore apply, along with any applicable section 7
-    additional terms, to the whole of the work, and all its parts,
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-
-    d) If the work has interactive user interfaces, each must display
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-works, which are not by their nature extensions of the covered work,
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-in or on a volume of a storage or distribution medium, is called an
-"aggregate" if the compilation and its resulting copyright are not
-used to limit the access or legal rights of the compilation's users
-beyond what the individual works permit.  Inclusion of a covered work
-in an aggregate does not cause this License to apply to the other
-parts of the aggregate.
-
-  6. Conveying Non-Source Forms.
-
-  You may convey a covered work in object code form under the terms
-of sections 4 and 5, provided that you also convey the
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-in one of these ways:
-
-    a) Convey the object code in, or embodied in, a physical product
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-    customarily used for software interchange.
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-    b) Convey the object code in, or embodied in, a physical product
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-    long as you offer spare parts or customer support for that product
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-    copy of the Corresponding Source for all the software in the
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-    c) Convey individual copies of the object code with a copy of the
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-    d) Convey the object code by offering access from a designated
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-    e) Convey the object code using peer-to-peer transmission, provided
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-    Source of the work are being offered to the general public at no
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-into a dwelling.  In determining whether a product is a consumer product,
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-product received by a particular user, "normally used" refers to a
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-source code form), and must require no special password or key for
-unpacking, reading or copying.
-
-  7. Additional Terms.
-
-  "Additional permissions" are terms that supplement the terms of this
-License by making exceptions from one or more of its conditions.
-Additional permissions that are applicable to the entire Program shall
-be treated as though they were included in this License, to the extent
-that they are valid under applicable law.  If additional permissions
-apply only to part of the Program, that part may be used separately
-under those permissions, but the entire Program remains governed by
-this License without regard to the additional permissions.
-
-  When you convey a copy of a covered work, you may at your option
-remove any additional permissions from that copy, or from any part of
-it.  (Additional permissions may be written to require their own
-removal in certain cases when you modify the work.)  You may place
-additional permissions on material, added by you to a covered work,
-for which you have or can give appropriate copyright permission.
-
-  Notwithstanding any other provision of this License, for material you
-add to a covered work, you may (if authorized by the copyright holders of
-that material) supplement the terms of this License with terms:
-
-    a) Disclaiming warranty or limiting liability differently from the
-    terms of sections 15 and 16 of this License; or
-
-    b) Requiring preservation of specified reasonable legal notices or
-    author attributions in that material or in the Appropriate Legal
-    Notices displayed by works containing it; or
-
-    c) Prohibiting misrepresentation of the origin of that material, or
-    requiring that modified versions of such material be marked in
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-
-    d) Limiting the use for publicity purposes of names of licensors or
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-
-    e) Declining to grant rights under trademark law for use of some
-    trade names, trademarks, or service marks; or
-
-    f) Requiring indemnification of licensors and authors of that
-    material by anyone who conveys the material (or modified versions of
-    it) with contractual assumptions of liability to the recipient, for
-    any liability that these contractual assumptions directly impose on
-    those licensors and authors.
-
-  All other non-permissive additional terms are considered "further
-restrictions" within the meaning of section 10.  If the Program as you
-received it, or any part of it, contains a notice stating that it is
-governed by this License along with a term that is a further
-restriction, you may remove that term.  If a license document contains
-a further restriction but permits relicensing or conveying under this
-License, you may add to a covered work material governed by the terms
-of that license document, provided that the further restriction does
-not survive such relicensing or conveying.
-
-  If you add terms to a covered work in accord with this section, you
-must place, in the relevant source files, a statement of the
-additional terms that apply to those files, or a notice indicating
-where to find the applicable terms.
-
-  Additional terms, permissive or non-permissive, may be stated in the
-form of a separately written license, or stated as exceptions;
-the above requirements apply either way.
-
-  8. Termination.
-
-  You may not propagate or modify a covered work except as expressly
-provided under this License.  Any attempt otherwise to propagate or
-modify it is void, and will automatically terminate your rights under
-this License (including any patent licenses granted under the third
-paragraph of section 11).
-
-  However, if you cease all violation of this License, then your
-license from a particular copyright holder is reinstated (a)
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-finally terminates your license, and (b) permanently, if the copyright
-holder fails to notify you of the violation by some reasonable means
-prior to 60 days after the cessation.
-
-  Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
-copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-
-  Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
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-material under section 10.
-
-  9. Acceptance Not Required for Having Copies.
-
-  You are not required to accept this License in order to receive or
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-occurring solely as a consequence of using peer-to-peer transmission
-to receive a copy likewise does not require acceptance.  However,
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-not accept this License.  Therefore, by modifying or propagating a
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-
-  10. Automatic Licensing of Downstream Recipients.
-
-  Each time you convey a covered work, the recipient automatically
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-propagate that work, subject to this License.  You are not responsible
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-
-  An "entity transaction" is a transaction transferring control of an
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-rights granted or affirmed under this License.  For example, you may
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-rights granted under this License, and you may not initiate litigation
-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-  11. Patents.
-
-  A "contributor" is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's "contributor version".
-
-  A contributor's "essential patent claims" are all patent claims
-owned or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, "control" includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-  Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-  In the following three paragraphs, a "patent license" is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To "grant" such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-  If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  "Knowingly relying" means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-  If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
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-parties who would receive the covered work from you, a discriminatory
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-conveyed by you (or copies made from those copies), or (b) primarily
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-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Remote Network Interaction; Use with the GNU General Public License.
-
-  Notwithstanding any other provision of this License, if you modify the
-Program, your modified version must prominently offer all users
-interacting with it remotely through a computer network (if your version
-supports such interaction) an opportunity to receive the Corresponding
-Source of your version by providing access to the Corresponding Source
-from a network server at no charge, through some standard or customary
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-shall include the Corresponding Source for any work covered by version 3
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-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the work with which it is combined will remain governed by version
-3 of the GNU General Public License.
-
-  14. Revised Versions of this License.
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-  The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
-will be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU Affero General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU Affero General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU Affero General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
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-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
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-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<http://www.gnu.org/licenses/>.

vendor/github.com/horgh/config/README.md

@@ -1 +0,0 @@
-This is a Go package which helps with reading configuration files.

vendor/github.com/horgh/config/config.go

@@ -1,196 +0,0 @@
-// Package config is a config file parser.
-//
-// A note on usage: Due to the fact that we use the reflect package, you must
-// pass in the struct for which you want to parse config keys using all
-// exported fields, or this config package cannot set those fields.
-//
-// Key names are case insensitive.
-//
-// For an example of using this package, see the test(s).
-//
-// For the types that we support parsing out of the struct, refer to the
-// populateConfig() function.
-package config
-
-import (
-	"bufio"
-	"fmt"
-	"log"
-	"os"
-	"reflect"
-	"strconv"
-	"strings"
-)
-
-// ReadStringMap a config file and returns the keys and values in a map where
-// keys and values are strings.
-//
-// The config file syntax is:
-// key = value
-//
-// Lines may be commented if they begin with a '#' with only whitespace or no
-// whitespace in front of the '#' character. Lines currently MAY NOT have
-// trailing '#' to be treated as comments.
-func ReadStringMap(path string) (map[string]string, error) {
-	if len(path) == 0 {
-		return nil, fmt.Errorf("invalid path. Path may not be blank")
-	}
-
-	fi, err := os.Open(path)
-	if err != nil {
-		return nil, err
-	}
-	defer func() {
-		if err := fi.Close(); err != nil {
-			log.Printf("error closing %s: %s", path, err)
-		}
-	}()
-
-	config := make(map[string]string)
-
-	scanner := bufio.NewScanner(fi)
-
-	for scanner.Scan() {
-		line := strings.TrimSpace(scanner.Text())
-		if strings.HasPrefix(line, "#") {
-			continue
-		}
-
-		parts := strings.SplitN(line, "=", 2)
-		if len(parts) != 2 {
-			continue
-		}
-
-		key := strings.ToLower(strings.TrimSpace(parts[0]))
-		value := strings.TrimSpace(parts[1])
-
-		if len(key) == 0 {
-			return nil, fmt.Errorf("key length is 0")
-		}
-
-		_, exists := config[key]
-		if exists {
-			return nil, fmt.Errorf("config key defined twice: %s", key)
-		}
-
-		// Permit value to be blank.
-
-		config[key] = value
-	}
-
-	err = scanner.Err()
-	if err != nil {
-		return nil, fmt.Errorf("error reading from file: %s", err)
-	}
-
-	return config, nil
-}
-
-// PopulateStruct takes values read from a config as a string map, and uses them
-// to populate a struct. The values will be converted to the struct's types as
-// necessary.
-//
-// To understand the use of reflect in this function, refer to the article Laws
-// of Reflection, or the documentation of the reflect package.
-func PopulateStruct(config interface{}, rawValues map[string]string) error {
-	// Make a reflect.Value from the interface.
-	v := reflect.ValueOf(config)
-
-	// Access the value that the interface contains.
-	elem := v.Elem()
-
-	// Make a reflect.Type. This describes the Go type. We can use it to get
-	// struct field names.
-	elemType := elem.Type()
-
-	// Iterate over every field of the struct.
-	for i := 0; i < elem.NumField(); i++ {
-		// Access the field.
-		f := elem.Field(i)
-
-		// Determine the field name.
-		fieldName := elemType.Field(i).Name
-
-		// We require this field was in the config file.
-		rawValue, ok := rawValues[strings.ToLower(fieldName)]
-		if !ok {
-			return fmt.Errorf("field %s not found in config file", fieldName)
-		}
-
-		// Convert each value string, if necessary, to the necessary Go type.
-		// We support a subset of types ('kinds' in reflect) currently.
-
-		if f.Kind() == reflect.Int32 {
-			converted, err := strconv.ParseInt(rawValue, 10, 32)
-			if err != nil {
-				return fmt.Errorf("unable to convert field %s value %s to int32: %s",
-					fieldName, rawValue, err)
-			}
-
-			f.SetInt(converted)
-			continue
-		}
-
-		if f.Kind() == reflect.Int64 {
-			converted, err := strconv.ParseInt(rawValue, 10, 64)
-			if err != nil {
-				return fmt.Errorf("unable to convert field %s value %s to int64: %s",
-					fieldName, rawValue, err)
-			}
-
-			f.SetInt(converted)
-			continue
-		}
-
-		if f.Kind() == reflect.Uint64 {
-			converted, err := strconv.ParseUint(rawValue, 10, 64)
-			if err != nil {
-				return fmt.Errorf("unable to convert field %s value %s to uint64: %s",
-					fieldName, rawValue, err)
-			}
-
-			f.SetUint(converted)
-			continue
-		}
-
-		if f.Kind() == reflect.String {
-			f.SetString(rawValue)
-			continue
-		}
-
-		return fmt.Errorf("field %s: Value: %s: Field kind not yet supported: %s",
-			fieldName, rawValue, f.Kind().String())
-	}
-
-	return nil
-}
-
-// GetConfig reads a config file and populates a struct with what is read.
-//
-// We use the reflect package to populate the struct from the config.
-//
-// Currently every member of the struct must have had a value set in the
-// config. That is, every config option is required.
-func GetConfig(path string, config interface{}) error {
-	// We don't need to parameter check path or keys. Why? Because path will get
-	// checked when we read the config.
-
-	// We do not need to check anything with the config as it is up to the caller
-	// to ensure that they gave us a struct with members they want parsed out of
-	// a config.
-
-	// First read in the config. Every key will be associated with a value which
-	// is a string.
-	rawValues, err := ReadStringMap(path)
-	if err != nil {
-		return fmt.Errorf("unable to read config: %s: %s", err, path)
-	}
-
-	// Fill the struct with the values read from the config.
-	err = PopulateStruct(config, rawValues)
-	if err != nil {
-		return fmt.Errorf("unable to populate config: %s", err)
-	}
-
-	return nil
-}

vendor/github.com/horgh/config/config_test.go

@@ -1,36 +0,0 @@
-package config
-
-import (
-	"testing"
-)
-
-// TestPopulateConfig is to test the conversion of types.
-func TestPopulateConfig(t *testing.T) {
-	type MyType struct {
-		Str string
-		Abc int64
-	}
-
-	var rawValues = map[string]string{
-		"str": "Hi there",
-		"abc": "123",
-	}
-
-	var myT MyType
-	err := PopulateStruct(&myT, rawValues)
-
-	if err != nil {
-		t.Errorf("Failed to populate: %s", err.Error())
-		return
-	}
-
-	if myT.Str != "Hi there" {
-		t.Errorf("Failed to parse string")
-		return
-	}
-
-	if myT.Abc != 123 {
-		t.Errorf("Failed to parse int")
-		return
-	}
-}

vendor/github.com/horgh/irc/.gitmodules

@@ -1,3 +0,0 @@
-[submodule "irc-parser-tests"]
-	path = irc-parser-tests
-	url = https://github.com/DanielOaks/irc-parser-tests

vendor/github.com/horgh/irc/.travis.yml

@@ -1,3 +0,0 @@
-language: go
-go:
-  - 1.9.x

vendor/github.com/horgh/irc/COPYING

@@ -1,661 +0,0 @@
-                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
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-
-  The licenses for most software and other practical works are designed
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-our General Public Licenses are intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.
-
-  When we speak of free software, we are referring to freedom, not
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-free programs, and that you know you can do these things.
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-The GNU General Public License permits making a modified version and
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-source code to the public.
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-
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-
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-
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-Source of your version by providing access to the Corresponding Source
-from a network server at no charge, through some standard or customary
-means of facilitating copying of software.  This Corresponding Source
-shall include the Corresponding Source for any work covered by version 3
-of the GNU General Public License that is incorporated pursuant to the
-following paragraph.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the work with which it is combined will remain governed by version
-3 of the GNU General Public License.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
-will be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU Affero General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU Affero General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU Affero General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<http://www.gnu.org/licenses/>.

vendor/github.com/horgh/irc/Gopkg.lock

@@ -1,33 +0,0 @@
-# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
-
-
-[[projects]]
-  branch = "master"
-  name = "github.com/DanielOaks/girc-go"
-  packages = ["ircmatch","ircmsg","ircutils"]
-  revision = "3a2b80af9bb858b7512f896a5b00804d574e80e0"
-
-[[projects]]
-  name = "github.com/docopt/docopt-go"
-  packages = ["."]
-  revision = "784ddc588536785e7299f7272f39101f7faccc3f"
-  version = "0.6.2"
-
-[[projects]]
-  branch = "master"
-  name = "github.com/goshuirc/e-nfa"
-  packages = ["."]
-  revision = "7071788e394065e6456458a5e9cb503cad545154"
-
-[[projects]]
-  branch = "v2"
-  name = "gopkg.in/yaml.v2"
-  packages = ["."]
-  revision = "eb3733d160e74a9c7e442f435eb3bea458e1d19f"
-
-[solve-meta]
-  analyzer-name = "dep"
-  analyzer-version = 1
-  inputs-digest = "fd7fb29d85c0a78d4b7c3d5bb2c08cde5827d51922b9c4fba19936532a7ea5fa"
-  solver-name = "gps-cdcl"
-  solver-version = 1

vendor/github.com/horgh/irc/Gopkg.toml

@@ -1,26 +0,0 @@
-
-# Gopkg.toml example
-#
-# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
-# for detailed Gopkg.toml documentation.
-#
-# required = ["github.com/user/thing/cmd/thing"]
-# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
-#
-# [[constraint]]
-#   name = "github.com/user/project"
-#   version = "1.0.0"
-#
-# [[constraint]]
-#   name = "github.com/user/project2"
-#   branch = "dev"
-#   source = "github.com/myfork/project2"
-#
-# [[override]]
-#  name = "github.com/x/y"
-#  version = "2.4.0"
-
-
-[[constraint]]
-  branch = "master"
-  name = "github.com/DanielOaks/irc-parser-tests"

vendor/github.com/horgh/irc/README.md

@@ -1,27 +0,0 @@
-# IRC
-
-[![Build
-Status](https://travis-ci.org/horgh/irc.svg)](https://travis-ci.org/horgh/irc)
-[![GoDoc](https://godoc.org/github.com/horgh/irc?status.svg)](https://godoc.org/github.com/horgh/irc)
-[![Go Report
-Card](https://goreportcard.com/badge/github.com/horgh/irc)](https://goreportcard.com/report/github.com/horgh/irc)
-
-This package provides functionality for working with the IRC protocol.
-Specifically, it provides decoding and encoding of IRC messages.
-
-It is useful for writing IRC servers and bots.
-[catbox](https://github.com/horgh/catbox) uses it, as does
-[godrop](https://github.com/horgh/godrop).
-
-In general it follows [RFC 1459](https://tools.ietf.org/html/rfc1459). RFC
-1459 is mostly compatible with at the message format level with [RFC
-2812](https://tools.ietf.org/html/rfc2812). Where there is a difference,
-this package favours RFC 1459.
-
-Due to the vagaries of IRC servers and clients in the wild, this package is
-lenient and will decode messages even if they are not fully RFC compliant.
-For example:
-
-  * It silently ignores trailing spaces in messages in certain cases (in
-    locations where they should be considered invalid).
-  * It allows messages to end with bare LF rather than the required CRLF.

vendor/github.com/horgh/irc/decode.go

@@ -1,350 +0,0 @@
-// Package irc provides encoding and decoding of IRC protocol messages. It is
-// useful for implementing clients and servers.
-package irc
-
-import (
-	"fmt"
-	"strings"
-)
-
-// ParseMessage parses a protocol message from the client/server. The message
-// should include the trailing CRLF.
-//
-// See RFC 1459/2812 section 2.3.1.
-func ParseMessage(line string) (Message, error) {
-	line, err := fixLineEnding(line)
-	if err != nil {
-		return Message{}, fmt.Errorf("line does not have a valid ending: %s", line)
-	}
-
-	truncated := false
-
-	if len(line) > MaxLineLength {
-		truncated = true
-
-		line = line[0:MaxLineLength-2] + "\r\n"
-	}
-
-	message := Message{}
-	index := 0
-
-	// It is optional to have a prefix.
-	if line[0] == ':' {
-		prefix, prefixIndex, err := parsePrefix(line)
-		if err != nil {
-			return Message{}, fmt.Errorf("problem parsing prefix: %s", err)
-		}
-		index = prefixIndex
-
-		message.Prefix = prefix
-
-		if index >= len(line) {
-			return Message{}, fmt.Errorf("malformed message. Prefix only")
-		}
-	}
-
-	// We've either parsed a prefix out or have no prefix.
-	command, index, err := parseCommand(line, index)
-	if err != nil {
-		return Message{}, fmt.Errorf("problem parsing command: %s", err)
-	}
-
-	message.Command = command
-
-	// May have params.
-	params, index, err := parseParams(line, index)
-	if err != nil {
-		return Message{}, fmt.Errorf("problem parsing params: %s", err)
-	}
-
-	if len(params) > 15 {
-		return Message{}, fmt.Errorf("too many parameters")
-	}
-
-	message.Params = params
-
-	// We should now have CRLF.
-	//
-	// index should be pointing at the CR after parsing params.
-	if index != len(line)-2 || line[index] != '\r' || line[index+1] != '\n' {
-		return Message{}, fmt.Errorf("malformed message. No CRLF found. Looking for end at position %d", index)
-	}
-
-	if truncated {
-		return message, ErrTruncated
-	}
-
-	return message, nil
-}
-
-// fixLineEnding tries to ensure the line ends with CRLF.
-//
-// If it ends with only LF, add a CR.
-func fixLineEnding(line string) (string, error) {
-	if len(line) == 0 {
-		return "", fmt.Errorf("line is blank")
-	}
-
-	if len(line) == 1 {
-		if line[0] == '\n' {
-			return "\r\n", nil
-		}
-
-		return "", fmt.Errorf("line does not end with LF")
-	}
-
-	lastIndex := len(line) - 1
-	secondLastIndex := lastIndex - 1
-
-	if line[secondLastIndex] == '\r' && line[lastIndex] == '\n' {
-		return line, nil
-	}
-
-	if line[lastIndex] == '\n' {
-		return line[:lastIndex] + "\r\n", nil
-	}
-
-	return "", fmt.Errorf("line has no ending CRLF or LF")
-}
-
-// parsePrefix parses out the prefix portion of a string.
-//
-// line begins with : and ends with \n.
-//
-// If there is no error we return the prefix and the position after
-// the SPACE.
-// This means the index points to the first character of the command (in a well
-// formed message). We do not confirm there actually is a character.
-//
-// We are parsing this:
-// message    =  [ ":" prefix SPACE ] command [ params ] crlf
-// prefix     =  servername / ( nickname [ [ "!" user ] "@" host ] )
-//
-// TODO: Enforce length limits
-// TODO: Enforce character / format more strictly.
-//   Right now I don't do much other than ensure there is no space.
-func parsePrefix(line string) (string, int, error) {
-	pos := 0
-
-	if line[pos] != ':' {
-		return "", -1, fmt.Errorf("line does not start with ':'")
-	}
-
-	for pos < len(line) {
-		// Prefix ends with a space.
-		if line[pos] == ' ' {
-			break
-		}
-
-		// Basic character check.
-		// I'm being very lenient here right now. Servername and hosts should only
-		// allow [a-zA-Z0-9]. Nickname can have any except NUL, CR, LF, " ". I
-		// choose to accept anything nicks can.
-		if line[pos] == '\x00' || line[pos] == '\n' || line[pos] == '\r' {
-			return "", -1, fmt.Errorf("invalid character found: %q", line[pos])
-		}
-
-		pos++
-	}
-
-	// We didn't find a space.
-	if pos == len(line) {
-		return "", -1, fmt.Errorf("no space found")
-	}
-
-	// Ensure we have at least one character in the prefix.
-	if pos == 1 {
-		return "", -1, fmt.Errorf("prefix is zero length")
-	}
-
-	// Return the prefix without the space.
-	// New index is after the space.
-	return line[1:pos], pos + 1, nil
-}
-
-// parseCommand parses the command portion of a message from the server.
-//
-// We start parsing at the given index in the string.
-//
-// We return the command portion and the index just after the command.
-//
-// ABNF:
-// message    =  [ ":" prefix SPACE ] command [ params ] crlf
-// command    =  1*letter / 3digit
-// params     =  *14( SPACE middle ) [ SPACE ":" trailing ]
-//            =/ 14( SPACE middle ) [ SPACE [ ":" ] trailing ]
-func parseCommand(line string, index int) (string, int, error) {
-	newIndex := index
-
-	// Parse until we hit a non-letter or non-digit.
-	for newIndex < len(line) {
-		// Digit
-		if line[newIndex] >= 48 && line[newIndex] <= 57 {
-			newIndex++
-			continue
-		}
-
-		// Letter
-		if line[newIndex] >= 65 && line[newIndex] <= 122 {
-			newIndex++
-			continue
-		}
-
-		// Must be a space or CR.
-		if line[newIndex] != ' ' &&
-			line[newIndex] != '\r' {
-			return "", -1, fmt.Errorf("unexpected character after command: %q",
-				line[newIndex])
-		}
-		break
-	}
-
-	// 0 length command is not valid.
-	if newIndex == index {
-		return "", -1, fmt.Errorf("0 length command found")
-	}
-
-	// TODO: Enforce that we either have 3 digits or all letters.
-
-	// Return command string without space or CR.
-	// New index is at the CR or space.
-	return strings.ToUpper(line[index:newIndex]), newIndex, nil
-}
-
-// parseParams parses the params part of a message.
-//
-// The given index points to the first character in the params.
-//
-// It is valid for there to be no params.
-//
-// We return each param (stripped of : in the case of 'trailing') and the index
-// after the params end.
-//
-// Note there may be a blank parameter since trailing may be empty.
-//
-// See <params> in grammar.
-func parseParams(line string, index int) ([]string, int, error) {
-	newIndex := index
-	var params []string
-
-	for newIndex < len(line) {
-		if line[newIndex] != ' ' {
-			return params, newIndex, nil
-		}
-
-		// In theory we could treat the 15th parameter differently to account for
-		// ":" being optional in RFC 2812. This is a difference from 1459 and I
-		// suspect not seen in the wild, so I don't.
-
-		param, paramIndex, err := parseParam(line, newIndex)
-		if err != nil {
-			// We should always have at least one character. However it is common in
-			// the wild (ratbox, quassel) for there to be trailing space characters
-			// before the CRLF. Permit this despite it arguably being invalid.
-			//
-			// We return the index pointing after the problem spaces as though we
-			// consumed them. We will be pointing at the CR.
-			if err == errEmptyParam {
-				crIndex := isTrailingSpace(line, newIndex)
-				if crIndex != -1 {
-					return params, crIndex, nil
-				}
-			}
-
-			return nil, -1, fmt.Errorf("problem parsing parameter: %s", err)
-		}
-
-		newIndex = paramIndex
-		params = append(params, param)
-	}
-
-	return nil, -1, fmt.Errorf("malformed params. Not terminated properly")
-}
-
-// parseParam parses out a single parameter term.
-//
-// index points to a space.
-//
-// We return the parameter (stripped of : in the case of trailing) and the
-// index after the parameter ends.
-func parseParam(line string, index int) (string, int, error) {
-	newIndex := index
-
-	if line[newIndex] != ' ' {
-		return "", -1, fmt.Errorf("malformed param. No leading space")
-	}
-
-	newIndex++
-
-	if len(line) == newIndex {
-		return "", -1, fmt.Errorf("malformed parameter. End of string after space")
-	}
-
-	// SPACE ":" trailing
-	if line[newIndex] == ':' {
-		newIndex++
-
-		if len(line) == newIndex {
-			return "", -1, fmt.Errorf("malformed parameter. End of string after ':'")
-		}
-
-		// It is valid for there to be no characters. Because: trailing   =  *( ":"
-		// / " " / nospcrlfcl )
-
-		paramIndexStart := newIndex
-
-		for newIndex < len(line) {
-			if line[newIndex] == '\x00' || line[newIndex] == '\r' ||
-				line[newIndex] == '\n' {
-				break
-			}
-			newIndex++
-		}
-
-		return line[paramIndexStart:newIndex], newIndex, nil
-	}
-
-	// We know we are parsing a <middle> and that we've dealt with :. This means
-	// we accept any character except NUL, CR, or LF. A space means we're at the
-	// end of the param.
-
-	// paramIndexStart points at the character after the space.
-	paramIndexStart := newIndex
-
-	for newIndex < len(line) {
-		if line[newIndex] == '\x00' || line[newIndex] == '\r' ||
-			line[newIndex] == '\n' || line[newIndex] == ' ' {
-			break
-		}
-		newIndex++
-	}
-
-	// Must have at least one character in this case. See grammar for 'middle'.
-	if paramIndexStart == newIndex {
-		return "", -1, errEmptyParam
-	}
-
-	return line[paramIndexStart:newIndex], newIndex, nil
-}
-
-// If the string from the given position to the end contains nothing but spaces
-// until we reach CRLF, return the position of CR.
-//
-// This is so we can recognize stray trailing spaces and discard them. They are
-// arguably invalid, but we want to be liberal in what we accept.
-func isTrailingSpace(line string, index int) int {
-	for i := index; i < len(line); i++ {
-		if line[i] == ' ' {
-			continue
-		}
-
-		if line[i] == '\r' {
-			return i
-		}
-
-		return -1
-	}
-
-	// We didn't hit \r. Line was all spaces.
-	return -1
-}

vendor/github.com/horgh/irc/encode.go

@@ -1,95 +0,0 @@
-package irc
-
-import (
-	"fmt"
-	"strings"
-)
-
-// Encode encodes the Message into a raw protocol message string.
-//
-// The resulting string will have a trailing CRLF.
-//
-// If encoding the message would exceed the allowed maximum length (more than
-// MaxLineLength bytes), we truncate and return as much as we can and return
-// ErrTruncated. This truncated message may still be usable.
-//
-// It does not enforce command specific semantics.
-func (m Message) Encode() (string, error) {
-	s := ""
-
-	if len(m.Prefix) > 0 {
-		s += ":" + m.Prefix + " "
-	}
-
-	s += m.Command
-
-	if len(s)+2 > MaxLineLength {
-		return "", fmt.Errorf("message with only prefix/command is too long")
-	}
-
-	truncated := false
-
-	// Both RFC 1459 and RFC 2812 limit us to 15 parameters.
-	if len(m.Params) > 15 {
-		return "", fmt.Errorf("too many parameters")
-	}
-
-	for i, param := range m.Params {
-		// We need to prefix the parameter with a colon in a few cases:
-		//
-		// 1) When there is a space in the parameter
-		//
-		// 2) When the first character is a colon
-		//
-		// 3) When this is the last parameter and it is empty. We do this to ensure
-		// it is visible. This is important e.g. in a TOPIC unset command (TS6
-		// server protocol). Also, RFC 1459/2812's grammar permits this.
-		//
-		// RFC 2812 differs from RFC 1459 by saying that ":" is optional for the
-		// 15th parameter, but we ignore that.
-		if idx := strings.IndexAny(param, " "); idx != -1 ||
-			(param != "" && param[0] == ':') ||
-			param == "" {
-			param = ":" + param
-
-			// This must be the last parameter. There can only be one <trailing>.
-			if i+1 != len(m.Params) {
-				return "", fmt.Errorf(
-					"parameter problem: ':' or ' ' outside last parameter")
-			}
-		}
-
-		// If we add the parameter as is, do we exceed the maximum length?
-		if len(s)+1+len(param)+2 > MaxLineLength {
-			// Either we can truncate the parameter and include a portion of it, or
-			// the parameter is too short to include at all. If it is too short to
-			// include, then don't add the space separator either.
-
-			// Claim the space separator (1) and CRLF (2) as used. Then we can tell
-			// how many bytes are available for the parameter as it is.
-			lengthUsed := len(s) + 1 + 2
-			lengthAvailable := MaxLineLength - lengthUsed
-
-			// If we prefixed the parameter with : then it's possible we include
-			// only the : here (if length available is 1). This is perhaps a little
-			// odd but I don't think problematic.
-
-			if lengthAvailable > 0 {
-				s += " " + param[0:lengthAvailable]
-			}
-
-			truncated = true
-			break
-		}
-
-		s += " " + param
-	}
-
-	s += "\r\n"
-
-	if truncated {
-		return s, ErrTruncated
-	}
-
-	return s, nil
-}

vendor/github.com/horgh/irc/irc.go

@@ -1,54 +0,0 @@
-package irc
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-)
-
-const (
-	// MaxLineLength is the maximum protocol message line length. It includes
-	// CRLF.
-	MaxLineLength = 512
-
-	// ReplyWelcome is the RPL_WELCOME response numeric.
-	ReplyWelcome = "001"
-
-	// ReplyYoureOper is the RPL_YOUREOPER response numeric.
-	ReplyYoureOper = "381"
-)
-
-// ErrTruncated is the error returned by Encode if the message gets truncated
-// due to encoding to more than MaxLineLength bytes.
-var ErrTruncated = errors.New("message truncated")
-
-// It is not always valid for there to be a parameter with zero characters. If
-// there is one, it should have a ':' prefix.
-var errEmptyParam = errors.New("parameter with zero characters")
-
-// Message holds a protocol message. See section 2.3.1 in RFC 1459/2812.
-type Message struct {
-	// Prefix may be blank. It's optional.
-	Prefix string
-
-	// Command is the IRC command. For example, PRIVMSG. It may be a numeric.
-	Command string
-
-	// There are at most 15 parameters.
-	Params []string
-}
-
-func (m Message) String() string {
-	return fmt.Sprintf("Prefix [%s] Command [%s] Params%q", m.Prefix, m.Command,
-		m.Params)
-}
-
-// SourceNick retrieves the nickname portion of the prefix. It is valid for
-// this to be blank as not all messages have prefixes.
-func (m Message) SourceNick() string {
-	idx := strings.Index(m.Prefix, "!")
-	if idx == -1 {
-		return ""
-	}
-	return m.Prefix[:idx]
-}

vendor/github.com/horgh/irc/irc_test.go

@@ -1,700 +0,0 @@
-package irc
-
-import "testing"
-
-func TestSourceNick(t *testing.T) {
-	tests := []struct {
-		input  Message
-		output string
-	}{
-		{Message{}, ""},
-		{Message{Prefix: "blah"}, ""},
-		{Message{Prefix: "!"}, ""},
-		{Message{Prefix: "hi!"}, "hi"},
-		{Message{Prefix: "hi!~hello@hey"}, "hi"},
-	}
-
-	for _, test := range tests {
-		got := test.input.SourceNick()
-		if got != test.output {
-			t.Errorf("%+v.SourceNick() = %s, wanted %s", test.input, got, test.output)
-		}
-	}
-}
-
-func TestParseMessage(t *testing.T) {
-	tests := []struct {
-		input   string
-		prefix  string
-		command string
-		params  []string
-		success bool
-	}{
-		{":irc PRIVMSG\r\n", "irc", "PRIVMSG", []string{}, true},
-
-		// No CRLF
-		{":irc PRIVMSG", "", "", []string{}, false},
-
-		// No CRLF
-		{":irc PRIVMSG one", "", "", []string{}, false},
-
-		// No command.
-		{":irc \r\n", "", "", []string{}, false},
-
-		{"PRIVMSG\r\n", "", "PRIVMSG", []string{}, true},
-
-		{"PRIVMSG :hi there\r\n", "", "PRIVMSG", []string{"hi there"}, true},
-
-		// Empty prefix.
-		{": PRIVMSG \r\n", "", "", []string{}, false},
-
-		// Stray \r.
-		{"ir\rc\r\n", "", "", []string{}, false},
-
-		{":irc PRIVMSG blah\r\n", "irc", "PRIVMSG", []string{"blah"}, true},
-		{":irc 001 :Welcome\r\n", "irc", "001", []string{"Welcome"}, true},
-		{":irc 001\r\n", "irc", "001", []string{}, true},
-
-		// This is technically invalid per grammar as there is a trailing space.
-		// However I permit it as we see trailing space in the wild frequently.
-		{":irc PRIVMSG \r\n", "irc", "PRIVMSG", []string{}, true},
-
-		// Invalid command.
-		{":irc @01\r\n", "", "", []string{}, false},
-
-		// No command.
-		{":irc \r\n", "", "", []string{}, false},
-
-		// Space before command.
-		{":irc  PRIVMSG\r\n", "", "", []string{}, false},
-
-		{":irc 000 hi\r\n", "irc", "000", []string{"hi"}, true},
-
-		// It is valid to have no parameters.
-		{":irc 000\r\n", "irc", "000", []string{}, true},
-
-		// Test last param having no :
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5\r\n", "irc", "000", []string{"1",
-			"2", "3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4", "5"},
-			true},
-
-		// Test last param having no : nor characters. If we went by RFC 2812 then
-		// this would give us an empty 15th parametr. But we go by RFC 1459 and so
-		// treat it as invalid trailing space and ignore it.
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 \r\n", "irc", "000",
-			[]string{"1", "2",
-				"3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4"}, true},
-
-		// Test last param having : but no characters
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 :\r\n", "irc", "000",
-			[]string{"1", "2",
-				"3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4", ""}, true},
-
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 :hi there\r\n", "irc", "000",
-			[]string{"1", "2",
-				"3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4", "hi there"},
-			true},
-
-		// If we went by RFC 2812 then we get "hi there" as the 15th parameter
-		// since : is optional by that RFC. But we favour RFC 1459 and so see too
-		// many parameters.
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 hi there\r\n", "", "",
-			[]string{}, false},
-
-		// Malformed because \r should not appear there.
-		{":irc 000 \r\r\n", "", "", []string{}, false},
-
-		// Param must not be blank unless last param.
-		// While this violates the grammar, I permit it now anyway.
-		{":irc 000 \r\n", "irc", "000", []string{}, true},
-
-		{":irc 000 0a 1b\r\n", "irc", "000", []string{"0a", "1b"}, true},
-
-		// If we have a space then there must be a parameter (unless it's the
-		// 15th).
-		// While this violates the grammar, I permit it now anyway.
-		{":irc 000 0 1 \r\n", "irc", "000", []string{"0", "1"}, true},
-
-		// NUL byte is invalid.
-		{":irc 000 a\x00 1 \r\n", "", "", []string{}, false},
-
-		// : inside a middle. Valid.
-		{":irc 000 a:bc\r\n", "irc", "000", []string{"a:bc"}, true},
-
-		{":irc 000 hi :there yes\r\n", "irc", "000", []string{"hi", "there yes"},
-			true},
-
-		// : inside a middle parameter. This is valid.
-		{":irc 000 hi:hi :no no\r\n", "irc", "000", []string{"hi:hi", "no no"},
-			true},
-
-		{":irc 000 hi:hi :no no :yes yes\r\n", "irc", "000", []string{"hi:hi", "no no :yes yes"},
-			true},
-
-		{":irc 000 hi:hi :no no :yes yes\n", "irc", "000", []string{"hi:hi", "no no :yes yes"},
-			true},
-
-		// Trailing whitespace is not valid here. Ratbox currently does send
-		// messages like this however.
-		{":irc MODE #test +o user  \r\n", "irc", "MODE",
-			[]string{"#test", "+o", "user"}, true},
-
-		// Blank topic parameter is used to unset the topic.
-		{":nick!user@host TOPIC #test :\r\n", "nick!user@host", "TOPIC", []string{"#test", ""},
-			true},
-
-		{":nick!user@host MODE #test +o :blah\r\n", "nick!user@host", "MODE",
-			[]string{"#test", "+o", "blah"}, true},
-
-		{":nick!user@host MODE #test +o blah1 :blah\r\n", "nick!user@host", "MODE",
-			[]string{"#test", "+o", "blah1", "blah"}, true},
-
-		{":nick!user@host MODE #test +o :blah1 blah\r\n", "nick!user@host", "MODE",
-			[]string{"#test", "+o", "blah1 blah"}, true},
-
-		{":nick!user@host PRIVMSG #test \r\n", "nick!user@host", "PRIVMSG",
-			[]string{"#test"}, true},
-
-		{":nick!user@host PRIVMSG #test :\r\n", "nick!user@host", "PRIVMSG",
-			[]string{"#test", ""}, true},
-
-		// Message is too long. Truncate it.
-		{
-			":nick PRIVMSG0 #test aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\r\n",
-			"nick",
-			"PRIVMSG0",
-			[]string{"#test", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"},
-			false,
-		},
-
-		// Message is too long. Truncate. This time we truncate in such a way that
-		// we risk leaving a trailing space that separated parameters.
-		{
-			// bb is where \r\n should be. Entire string is 514 bytes.
-			":nick PRIVMSG1 #test aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa bb\r\n",
-			"nick",
-			"PRIVMSG1",
-			[]string{"#test", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"},
-			false,
-		},
-
-		// Message is too long. Truncate. This time we truncate in such a way that
-		// we leave only : that was prefixing a parameter.
-		{
-			// b is where \r should be. Entire string is 513 bytes.
-			":nick PRIVMSG2 #test aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa :b\r\n",
-			"nick",
-			"PRIVMSG2",
-			[]string{"#test", "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", ""},
-			false,
-		},
-
-		// Trailing whitespace is not valid. However we accept it as we see it in
-		// the wild. This tests having lots of it.
-		{":irc MODE #test +o user          \r\n", "irc", "MODE",
-			[]string{"#test", "+o", "user"}, true},
-
-		// Test that inline : isn't a problem.
-		{":irc MODE #test +o u:ser\r\n", "irc", "MODE",
-			[]string{"#test", "+o", "u:ser"}, true},
-	}
-
-	for _, test := range tests {
-		msg, err := ParseMessage(test.input)
-		if err != nil {
-			if test.success {
-				t.Errorf("ParseMessage(%q) = %s", test.input, err)
-				continue
-			}
-
-			if err == ErrTruncated {
-				if msg.Prefix != test.prefix {
-					t.Errorf("truncated. ParseMessage(%q) got prefix %v, wanted %v",
-						test.input, msg.Prefix, test.prefix)
-					continue
-				}
-
-				if msg.Command != test.command {
-					t.Errorf("truncated. ParseMessage(%q) got command %v, wanted %v",
-						test.input, msg.Command, test.command)
-					continue
-				}
-
-				if !paramsEqual(msg.Params, test.params) {
-					t.Errorf("truncated. ParseMessage(%q) got params %q, wanted %q",
-						test.input, msg.Params, test.params)
-					continue
-				}
-			}
-
-			continue
-		}
-
-		if !test.success {
-			t.Errorf("ParseMessage(%q) should have failed, but did not.", test.input)
-			continue
-		}
-
-		if msg.Prefix != test.prefix {
-			t.Errorf("ParseMessage(%q) got prefix %v, wanted %v", test.input,
-				msg.Prefix, test.prefix)
-			continue
-		}
-
-		if msg.Command != test.command {
-			t.Errorf("ParseMessage(%q) got command %v, wanted %v", test.input,
-				msg.Command, test.command)
-			continue
-		}
-
-		if !paramsEqual(msg.Params, test.params) {
-			t.Errorf("ParseMessage(%q) got params %q, wanted %q", test.input,
-				msg.Params, test.params)
-			continue
-		}
-	}
-}
-
-func TestFixLineEnding(t *testing.T) {
-	tests := []struct {
-		input   string
-		output  string
-		success bool
-	}{
-		{"hi", "", false},
-		{"hi\n", "hi\r\n", true},
-		{"hi\r\n", "hi\r\n", true},
-		{"\n", "\r\n", true},
-		{"\r\n", "\r\n", true},
-	}
-
-	for _, test := range tests {
-		out, err := fixLineEnding(test.input)
-		if err != nil {
-			if !test.success {
-				continue
-			}
-
-			t.Errorf("fixLineEnding(%s) failed %s, wanted %s", test.input, err,
-				test.output)
-			continue
-		}
-
-		if !test.success {
-			t.Errorf("fixLineEnding(%s) succeeded, wanted failure", test.input)
-			continue
-		}
-
-		if out != test.output {
-			t.Errorf("fixLineEnding(%s) = %s, wanted %s", test.input, out,
-				test.output)
-		}
-	}
-}
-
-func TestParsePrefix(t *testing.T) {
-	var tests = []struct {
-		input  string
-		prefix string
-		index  int
-	}{
-		{":irc.example.com PRIVMSG", "irc.example.com", 17},
-		{":irc.example.com ", "irc.example.com", 17},
-		{":irc PRIVMSG ", "irc", 5},
-		{"irc.example.com", "", -1},
-		{": PRIVMSG ", "", -1},
-		{"irc\rexample.com", "", -1},
-	}
-
-	for _, test := range tests {
-		prefix, index, err := parsePrefix(test.input)
-
-		if err != nil {
-			if test.index != -1 {
-				t.Errorf("parsePrefix(%q) = error %s", test.input, err.Error())
-			}
-			continue
-		}
-
-		if test.index == -1 {
-			t.Errorf("parsePrefix(%q) should have failed, but did not", test.input)
-			continue
-		}
-
-		if prefix != test.prefix {
-			t.Errorf("parsePrefix(%q) = %v, want %v", test.input, prefix,
-				test.prefix)
-			continue
-		}
-
-		if index != test.index {
-			t.Errorf("parsePrefix(%q) = %v, want %v", test.input, index,
-				test.index)
-			continue
-		}
-	}
-}
-
-func TestParseCommand(t *testing.T) {
-	var tests = []struct {
-		input      string
-		command    string
-		startIndex int
-		newIndex   int
-	}{
-		{":irc PRIVMSG blah\r\n", "PRIVMSG", 5, 12},
-		{":irc 001 :Welcome\r\n", "001", 5, 8},
-		{":irc 001\r\n", "001", 5, 8},
-		{":irc PRIVMSG ", "PRIVMSG", 5, 12},
-		{":irc @01\r\n", "", 5, -1},
-		{":irc \r\n", "", 5, -1},
-		{":irc  PRIVMSG\r\n", "", 5, -1},
-	}
-
-	for _, test := range tests {
-		command, newIndex, err := parseCommand(test.input, test.startIndex)
-
-		if err != nil {
-			if test.newIndex != -1 {
-				t.Errorf("parseCommand(%q) = error %s", test.input, err.Error())
-			}
-			continue
-		}
-
-		if test.newIndex == -1 {
-			t.Errorf("parseCommand(%q) should have failed, but did not", test.input)
-			continue
-		}
-
-		if command != test.command {
-			t.Errorf("parseCommand(%q) = %v, want %v", test.input, command,
-				test.command)
-			continue
-		}
-
-		if newIndex != test.newIndex {
-			t.Errorf("parseCommand(%q) = %v, want %v", test.input, newIndex,
-				test.newIndex)
-			continue
-		}
-	}
-}
-
-func TestParseParams(t *testing.T) {
-	tests := []struct {
-		input    string
-		index    int
-		params   []string
-		newIndex int
-	}{
-		{":irc 000 hi\r\n", 8, []string{"hi"}, 11},
-
-		// It is valid to have no parameters.
-		{":irc 000\r\n", 8, nil, 8},
-
-		// Test last param having no :
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5\r\n", 8, []string{"1", "2",
-			"3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4", "5"}, 38},
-
-		// Test last param having no : nor characters. Going by RFC 2812 this would
-		// give us an empty parameter as the : is optional there. But we favour RFC
-		// 1459 and due to our ignoring trailing whitespace, though invalid, we get
-		// only 14 parameters.
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 \r\n", 8, []string{"1", "2",
-			"3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4"}, 37},
-
-		// Test last param having : but no characters
-		{":irc 000 1 2 3 4 5 6 7 8 9 0 1 2 3 4 :\r\n", 8, []string{"1", "2",
-			"3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4", ""}, 38},
-
-		// Malformed because \r should not appear there. However, parameter parsing
-		// accepts this message (as having no parameters), and stops at the first
-		// \r. Full message parsing will catch this as invalid.
-		{":irc 000 \r\r\n", 8, []string{}, 9},
-
-		// Must not be blank unless last param.
-		// While this violates the grammar, I permit it because we see it in the
-		// wild.
-		{":irc 000 \r\n", 8, []string{}, 9},
-
-		{":irc 000 0a 1b\r\n", 8, []string{"0a", "1b"}, 14},
-
-		// If we have a space then there must be a parameter (unless it's the
-		// 15th). While this violates the grammar, I permit it as we see it
-		// frequently in the wild.
-		{":irc 000 0 1 \r\n", 8, []string{"0", "1"}, 13},
-
-		// This is a malformed message (NUL byte) but the parameter parsing won't
-		// catch it because we stop at the NUL byte. Full message parsing catches
-		// it.
-		{":irc 000 a\x00 1 \r\n", 8, []string{"a"}, 10},
-
-		// This parameter is valid as : is not the first character.
-		{":irc 000 a:bc\r\n", 8, []string{"a:bc"}, 13},
-	}
-
-	for _, test := range tests {
-		params, newIndex, err := parseParams(test.input, test.index)
-		if err != nil {
-			if test.newIndex != -1 {
-				t.Errorf("parseParams(%q) = %v, want %v", test.input, err, test.params)
-			}
-			continue
-		}
-
-		if test.newIndex == -1 {
-			t.Errorf("parseParams(%q) should have failed, but did not", test.input)
-			continue
-		}
-
-		if !paramsEqual(params, test.params) {
-			t.Errorf("parseParams(%q) = %v, wanted %v", test.input, params,
-				test.params)
-			continue
-		}
-
-		if newIndex != test.newIndex {
-			t.Errorf("parseParams(%q) index = %v, wanted %v", test.input, newIndex,
-				test.newIndex)
-			continue
-		}
-	}
-}
-
-func paramsEqual(params1, params2 []string) bool {
-	if len(params1) != len(params2) {
-		return false
-	}
-
-	for i, v := range params1 {
-		if params2[i] != v {
-			return false
-		}
-	}
-
-	return true
-}
-
-func TestEncodeMessage(t *testing.T) {
-	tests := []struct {
-		input   Message
-		output  string
-		success bool
-	}{
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "nick",
-				Params:  []string{"nick2", "hi there"},
-			},
-			":nick PRIVMSG nick2 :hi there\r\n",
-			true,
-		},
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "nick",
-				Params:  []string{"nick2", " hi there"},
-			},
-			":nick PRIVMSG nick2 : hi there\r\n",
-			true,
-		},
-		{
-			Message{
-				Command: "TOPIC",
-				Prefix:  "nick",
-				Params:  []string{"#test", "hi there"},
-			},
-			":nick TOPIC #test :hi there\r\n",
-			true,
-		},
-
-		// We can have zero length TOPIC in TS6 protocol - for when the topic is
-		// to be unset.
-		{
-			Message{
-				Command: "TOPIC",
-				Prefix:  "nick",
-				Params:  []string{"#test", ""},
-			},
-			":nick TOPIC #test :\r\n",
-			true,
-		},
-
-		{
-			Message{
-				Command: "TOPIC",
-				Prefix:  "nick",
-				Params:  []string{"#test", ":"},
-			},
-			":nick TOPIC #test ::\r\n",
-			true,
-		},
-
-		// A message that encodes to longer than MaxLineLength (512) bytes
-		// The encoded length of this message would be
-		// 1+7+1 + 4+1 + 5+1 + 530 + 2 (crlf) = 552 bytes
-		// Truncates to 512.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "nick",
-				// Second parameter is 530 bytes
-				Params: []string{"#test", "abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz"},
-			},
-			":nick PRIVMSG #test abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuv\r\n",
-			false,
-		},
-
-		// Another message that is too long to encode as is. Truncates.
-		//
-		// This time the final parameter is 2 bytes long and has no prefix, and
-		// there is no space to include either of them. This is to test what
-		// happens when we truncate in the situation where we drop the entire last
-		// parameter.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "nick",
-				Params:  []string{"#test", "abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstz", "wx"},
-			},
-			// Length becomes 511 bytes. Not 512 because we do not include the space
-			// that would separate the parameter which we cannot include at all.
-			":nick PRIVMSG #test abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstz\r\n",
-			false,
-		},
-
-		// Message is too long to encode.
-		//
-		// In this case the last parameter is 1 byte, and it has a prefix. Again
-		// there is no space to include any of it. This is again to test behaviour
-		// when we drop the whole last parameter.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "nick",
-				Params:  []string{"#test", "abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstz", ":"},
-			},
-			// Length becomes 511 bytes. Not 512 because we do not include the space
-			// that would separate the parameter which we cannot include at all.
-			":nick PRIVMSG #test abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstz\r\n",
-			false,
-		},
-
-		// Message is too long to encode.
-		//
-		// In this case the last parameter is 1 byte, and it has a prefix. The
-		// difference in this case is we can include just the prefix.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "nick",
-				Params:  []string{"#test", "abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrst", ":"},
-			},
-			":nick PRIVMSG #test abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrst :\r\n",
-			false,
-		},
-
-		// A message that is too long to encode where only the prefix and the
-		// command are alone enough to exceed the length. In this case it does
-		// not make sense to truncate. Error out.
-		{
-			Message{
-				Command: "PRIVMSG",
-				// Prefix is 530 bytes
-				Prefix: "abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz0123456789abcdefghijklmnopqrstuvwxyz",
-				Params: []string{},
-			},
-			"",
-			false,
-		},
-
-		// Too many parameters.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "hi",
-				Params: []string{"1", "2", "3", "4", "5", "6", "7", "8", "9", "10",
-					"11", "12", "13", "14", "15", "16"},
-			},
-			"",
-			false,
-		},
-
-		// 15 parameters is ok.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "hi",
-				Params: []string{"1", "2", "3", "4", "5", "6", "7", "8", "9", "10",
-					"11", "12", "13", "14", "15"},
-			},
-			":hi PRIVMSG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15\r\n",
-			true,
-		},
-
-		// Inline : does not get escaped.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "hi",
-				Params:  []string{"one:two", "hi there"},
-			},
-			":hi PRIVMSG one:two :hi there\r\n",
-			true,
-		},
-
-		// Param starting with : does get escaped.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "hi",
-				Params:  []string{":one:two"},
-			},
-			":hi PRIVMSG ::one:two\r\n",
-			true,
-		},
-
-		// Need to escape first parameter, but it's not the last.
-		{
-			Message{
-				Command: "PRIVMSG",
-				Prefix:  "hi",
-				Params:  []string{":one:two", "hi"},
-			},
-			"",
-			false,
-		},
-	}
-
-	for _, test := range tests {
-		buf, err := test.input.Encode()
-		if err != nil {
-			if test.success {
-				t.Errorf("Encode(%s) failed but should succeed: %s", test.input, err)
-				continue
-			}
-
-			// When we truncate, check we received what we expected.
-			if err == ErrTruncated {
-				if buf != test.output {
-					t.Errorf("Encode(%s) truncated to %s, wanted %s", test.input, buf,
-						test.output)
-					continue
-				}
-			}
-
-			continue
-		}
-
-		if !test.success {
-			t.Errorf("Encode(%s) succeeded but should fail", test.input)
-			continue
-		}
-
-		if buf != test.output {
-			t.Errorf("Encode(%s) = %s, wanted %s", test.input, buf, test.output)
-			continue
-		}
-	}
-}

vendor/github.com/horgh/irc/vendor_test.go

@@ -1,142 +0,0 @@
-package irc
-
-import (
-	"io/ioutil"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	yaml "gopkg.in/yaml.v2"
-)
-
-// msg-split tests from irc-parser-tests
-func TestIRCParserTestsMsgSplit(t *testing.T) {
-	testFile := filepath.Join("irc-parser-tests", "tests", "msg-split.yaml")
-	data, err := ioutil.ReadFile(testFile)
-	if err != nil {
-		t.Fatalf("error opening file: %s: %s", testFile, err)
-	}
-
-	type MsgSplitTests struct {
-		Tests []struct {
-			Input string
-			Atoms struct {
-				Source *string
-				Verb   string
-				Params []string
-				Tags   map[string]interface{}
-			}
-		}
-	}
-
-	var tests *MsgSplitTests
-	if err := yaml.Unmarshal(data, &tests); err != nil {
-		t.Fatalf("error unmarshaling %s: %s", testFile, err)
-	}
-
-	for _, test := range tests.Tests {
-		if test.Atoms.Tags != nil {
-			// We don't support tags right now.
-			continue
-		}
-
-		if test.Input ==
-			":gravel.mozilla.org 432  #momo :Erroneous Nickname: Illegal characters" {
-			// This is an invalid message. I'm not inclined to support it.
-			continue
-		}
-		input := test.Input + "\r\n"
-		msg, err := ParseMessage(input)
-		if err != nil {
-			t.Fatalf("error parsing message: %s: %s", test.Input, err)
-		}
-
-		wantCommand := strings.ToUpper(test.Atoms.Verb)
-		if msg.Command != wantCommand {
-			t.Errorf("%s: got command %s, wanted %s", test.Input, msg.Command,
-				wantCommand)
-			continue
-		}
-
-		if len(msg.Params) != len(test.Atoms.Params) {
-			t.Errorf("%s: got %d params, wanted %d", test.Input, len(msg.Params),
-				len(test.Atoms.Params))
-			continue
-		}
-
-		for i, data := range test.Atoms.Params {
-			if msg.Params[i] != data {
-				t.Errorf("%s: param %d is %s, wanted %s", test.Input, i,
-					msg.Params[i], data)
-				continue
-			}
-		}
-
-		prefix := ""
-		if test.Atoms.Source != nil {
-			prefix = *test.Atoms.Source
-		}
-
-		if msg.Prefix != prefix {
-			t.Errorf("%s: prefix is %s, wanted %s", test.Input, msg.Prefix, prefix)
-			continue
-		}
-	}
-}
-
-// msg-join tests from irc-parser-tests
-func TestIRCParserTestsMsgJoin(t *testing.T) {
-	testFile := filepath.Join("irc-parser-tests", "tests", "msg-join.yaml")
-	data, err := ioutil.ReadFile(testFile)
-	if err != nil {
-		t.Fatalf("error opening file: %s: %s", testFile, err)
-	}
-
-	type MsgJoinTests struct {
-		Tests []struct {
-			Desc  string
-			Atoms struct {
-				Source string
-				Verb   string
-				Params []string
-				Tags   map[string]interface{}
-			}
-			Matches []string
-		}
-	}
-
-	var tests *MsgJoinTests
-	if err := yaml.Unmarshal(data, &tests); err != nil {
-		t.Fatalf("error unmarshaling: %s: %s", testFile, err)
-	}
-
-	for _, test := range tests.Tests {
-		if test.Atoms.Tags != nil {
-			// We don't support tags currently.
-			continue
-		}
-
-		msg := Message{
-			Prefix:  test.Atoms.Source,
-			Command: test.Atoms.Verb,
-			Params:  test.Atoms.Params,
-		}
-
-		buf, err := msg.Encode()
-		if err != nil {
-			t.Fatalf("failed to encode message for test %s: %s", test.Desc, err)
-		}
-
-		matched := false
-		for _, match := range test.Matches {
-			if buf == match+"\r\n" {
-				matched = true
-			}
-		}
-
-		if !matched {
-			t.Errorf("no match: %s: got %s, wanted %v", test.Desc, buf,
-				test.Matches)
-		}
-	}
-}

version.go

@@ -2,7 +2,7 @@ package main
 
 // CreatedDate is the date we're built. This would be nice to generate
 // dynamically, but I don't want to complicate the build.
-const CreatedDate = "2018-06-23"
+const CreatedDate = "2019-01-01"
 
 // Version is our version.
-const Version = "catbox-1.8.1"
+const Version = "catbox-1.11.0"