Move from an ignore handler to hacking the IRC adapter

adapters/irc/irc.go

@@ -0,0 +1,106 @@
+// Copyright (c) 2016 Tristan Colgate-McFarlane
+//
+// This file is part of hugot.
+//
+// hugot is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// hugot 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with hugot.  If not, see <http://www.gnu.org/licenses/>.
+
+// Package irc implements a simple adapter for IRC using
+// github.com/thoj/go-ircevent
+package irc
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+
+	"golang.org/x/net/context"
+
+	"github.com/golang/glog"
+	"github.com/tcolgate/hugot"
+	irce "github.com/thoj/go-ircevent"
+)
+
+// New creates a new adapter that communicates with an IRC server using
+// github.com/thoj/go-ircevent
+//
+// You can specify a list of hosts (in the irc-event sense) to ignore.
+func New(i *irce.Connection, ignores ...string) (hugot.Adapter, error) {
+	a := &irc{
+		i,
+		make(chan *hugot.Message),
+		regexp.MustCompile(fmt.Sprintf("^%s[:, ]?(.*)", i.GetNick())),
+		make(map[string]struct{}, len(ignores)),
+	}
+
+	for _, ignore := range ignores {
+		a.ignores[ignore] = struct{}{}
+	}
+
+	i.AddCallback("PRIVMSG", a.gotEvent)
+	return a, nil
+}
+
+type irc struct {
+	*irce.Connection
+	c       chan *hugot.Message
+	dir     *regexp.Regexp
+	ignores map[string]struct{}
+}
+
+func (i *irc) gotEvent(e *irce.Event) {
+	if _, present := i.ignores[e.Host]; present {
+		return
+	}
+
+	go func() {
+		if glog.V(3) {
+			glog.Infof("Got %#v", *e)
+		}
+		i.c <- i.eventToHugot(e)
+	}()
+}
+
+func (irc *irc) Send(ctx context.Context, m *hugot.Message) {
+	for _, l := range strings.Split(m.Text, "\n") {
+		irc.Privmsg(m.Channel, l)
+	}
+}
+
+func (irc *irc) Receive() <-chan *hugot.Message {
+	return irc.c
+}
+
+func (irc *irc) eventToHugot(e *irce.Event) *hugot.Message {
+	txt := e.Message()
+	tobot := false
+
+	// Check if the message was sent @bot, if so, set it as to us
+	// and strip the leading politeness
+	dirMatch := irc.dir.FindStringSubmatch(txt)
+	if glog.V(3) {
+		glog.Infof("Match %#v", dirMatch)
+	}
+
+	if len(dirMatch) > 1 {
+		tobot = true
+		txt = strings.Trim(dirMatch[1], " ")
+	}
+
+	return &hugot.Message{
+		Channel: e.Arguments[0],
+		From:    e.Nick,
+		Text:    txt,
+		ToBot:   tobot,
+	}
+}

handlers/ignore/ignore.go

@@ -1,59 +0,0 @@
-// package ignore is a Hugot handler that will force any messages received from
-// a set of matching idents to be ignored
-package ignore
-
-import (
-	"github.com/tcolgate/hugot"
-	"golang.org/x/net/context"
-)
-
-type IgnoreHearsHandler struct {
-	hugot.HearsHandler
-
-	Ignores map[string]struct{}
-}
-
-type IgnoreCommandHandler struct {
-	hugot.CommandHandler
-
-	Ignores map[string]struct{}
-}
-
-func NewCommand(list []string, next hugot.CommandHandler) hugot.CommandHandler {
-	return &IgnoreCommandHandler{
-		CommandHandler: next,
-		Ignores:        buildIgnores(list),
-	}
-}
-
-func NewHears(list []string, next hugot.HearsHandler) hugot.HearsHandler {
-	return &IgnoreHearsHandler{
-		HearsHandler: next,
-		Ignores:      buildIgnores(list),
-	}
-}
-
-func buildIgnores(ignores []string) map[string]struct{} {
-	out := make(map[string]struct{}, len(ignores))
-	for _, nick := range ignores {
-		out[nick] = struct{}{}
-	}
-
-	return out
-}
-
-func (i *IgnoreHearsHandler) Heard(ctx context.Context, w hugot.ResponseWriter, m *hugot.Message, matches [][]string) {
-	if _, present := i.Ignores[m.From]; present {
-		return
-	}
-
-	i.HearsHandler.Heard(ctx, w, m, matches)
-}
-
-func (i *IgnoreCommandHandler) Command(ctx context.Context, w hugot.ResponseWriter, m *hugot.Message) error {
-	if _, present := i.Ignores[m.From]; present {
-		return nil
-	}
-
-	return i.CommandHandler.Command(ctx, w, m)
-}

handlers/ignore/ignore_test.go

@@ -1,46 +0,0 @@
-package ignore_test
-
-import (
-	"regexp"
-	"testing"
-
-	"github.com/tcolgate/hugot"
-	"golang.org/x/net/context"
-	"ur.gs/lysenko/handlers/ignore"
-)
-
-type DummyHearsHandler struct {
-	Called bool
-}
-
-func (h *DummyHearsHandler) Describe() (string, string) {
-	return "", ""
-}
-
-func (h *DummyHearsHandler) Hears() *regexp.Regexp {
-	return regexp.MustCompile(``)
-}
-
-func (h *DummyHearsHandler) Heard(ctx context.Context, w hugot.ResponseWriter, m *hugot.Message, submatches [][]string) {
-	h.Called = true
-}
-
-func TestIgnoreHearsPassesOKNick(t *testing.T) {
-	msg := hugot.Message{}
-	dummy := &DummyHearsHandler{}
-	ignorer := ignore.NewHears([]string{"foo"}, dummy)
-	ignorer.Heard(context.TODO(), hugot.NewNullResponseWriter(msg), &msg, [][]string{})
-	if !dummy.Called {
-		t.Fatal("Dummy not called when it should have been")
-	}
-}
-
-func TestIgnoreHearsBlocksBadNick(t *testing.T) {
-	msg := hugot.Message{From: "foo"}
-	dummy := &DummyHearsHandler{}
-	ignorer := ignore.NewHears([]string{"foo"}, dummy)
-	ignorer.Heard(context.TODO(), hugot.NewNullResponseWriter(msg), &msg, [][]string{})
-	if dummy.Called {
-		t.Fatal("Dummy called when it shouldn't have been")
-	}
-}

lysenko.go

@@ -8,11 +8,11 @@ import (
 	"time"
 
 	"github.com/tcolgate/hugot"
-	"github.com/tcolgate/hugot/adapters/irc"
+
 	irce "github.com/thoj/go-ircevent"
 	"golang.org/x/net/context"
 
-	"ur.gs/lysenko/handlers/ignore"
+	"ur.gs/lysenko/adapters/irc"
 	"ur.gs/lysenko/handlers/quotedb"
 )
 
@@ -32,13 +32,6 @@ func init() {
 	rand.Seed(time.Now().Unix())
 }
 
-func buildAdder(mux *hugot.Mux, ignoreList []string) func(next hugot.HearsHandler) {
-	return func(next hugot.HearsHandler) {
-		mux.AddHearsHandler(ignore.NewHears(ignoreList, next))
-	}
-
-}
-
 func main() {
 	flag.Parse()
 	ignoreList := strings.Split(*ignores, ",")
@@ -55,30 +48,29 @@ func main() {
 	}
 	defer conn.Quit()
 
+	adapter, err := irc.New(conn, ignoreList...)
+	if err != nil {
+		log.Fatal(err)
+	}
+
 	for _, channel := range channelList {
 		conn.Join(channel)
 	}
 
 	ctx := context.Background()
-	adapter, err := irc.New(conn)
-	if err != nil {
-		log.Fatal(err)
-	}
-
 	db, err := quotedb.New(*quotes)
 	if err != nil {
 		log.Fatal(err)
 	}
 	defer db.DB.Close()
 
-	add := buildAdder(hugot.DefaultMux, ignoreList)
-	add(&quotedb.AddQuoteHandler{QuoteDB: db})
-	add(&quotedb.LastQuoteHandler{QuoteDB: db})
-	add(&quotedb.FindQuoteHandler{QuoteDB: db})
-	add(&quotedb.RandQuoteHandler{QuoteDB: db})
-	add(&quotedb.QuoteHandler{QuoteDB: db})
-
-	go hugot.ListenAndServe(ctx, adapter, hugot.DefaultMux)
+	mux := hugot.DefaultMux
+	mux.AddHearsHandler(&quotedb.AddQuoteHandler{QuoteDB: db})
+	mux.AddHearsHandler(&quotedb.LastQuoteHandler{QuoteDB: db})
+	mux.AddHearsHandler(&quotedb.FindQuoteHandler{QuoteDB: db})
+	mux.AddHearsHandler(&quotedb.RandQuoteHandler{QuoteDB: db})
+	mux.AddHearsHandler(&quotedb.QuoteHandler{QuoteDB: db})
 
+	go hugot.ListenAndServe(ctx, adapter, mux)
 	conn.Loop()
 }