lightcrystal/underbbs
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open websocket and get subscriber key

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This commit is contained in:
Iris Lightshard 2024-05-26 12:50:19 -06:00
parent 89df01f089
commit 8f2b281d82
Signed by: Iris Lightshard
GPG key ID: 688407174966CAF3
7 changed files with 134 additions and 73 deletions
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5
adapter/adapter.go
View file

@ -18,6 +18,7 @@ type Adapter interface {
Unfollow(Author) error
GetFollowers() error
UpdateMetadata(interface{}) error
DefaultSubscriptionFilter() string
}
type NostrAdapter struct {
@ -96,6 +97,10 @@ func (self *NostrAdapter) UpdateMetadata(data interface{}) error {
return nil
}
func (self *NostrAdapter) DefaultSubscriptionFilter() string {
return "[{'iDs':null,'kinds':[1],'authors':null,'tags':nil,'since':nil,'until':nil,'limit':0}]"
}
func nostrEventToMsg(evt *nostr.Event) (Message, error) {
m := Message{
Protocol: "nostr",

54
server/api.go Normal file
View file

@ -0,0 +1,54 @@
package server
import (
"hacklab.nilfm.cc/quartzgun/renderer"
"hacklab.nilfm.cc/quartzgun/router"
"html/template"
"net/http"
)
func apiConfigureAdapters(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(201)
next.ServeHTTP(w, req)
})
}
func apiGetAdapters(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(201)
next.ServeHTTP(w, req)
})
}
func apiAdapterSubscribe(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(201)
next.ServeHTTP(w, req)
})
}
func ProtectWithSubscriberKey(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
w.WriteHeader(201)
next.ServeHTTP(w, req)
})
}
func apiMux() http.Handler {
errTemplate, err := template.New("err").Parse("{{ $params := (.Context).Value \"params\" }}<html><body><h1>ERROR {{ $params.ErrorCode }}</h1><p class='error'>{{ $params.ErrorMessage }}</p></body></html>")
if err != nil {
panic("error template was malformed")
}
rtr := &router.Router{
Fallback: *errTemplate,
}
// adapters (POST & GET)
rtr.Post("/adapters", ProtectWithSubscriberKey(apiConfigureAdapters(renderer.JSON("data"))))
rtr.Get("/adapters", ProtectWithSubscriberKey(apiGetAdapters(renderer.JSON("data"))))
// adapters/:name/subscribe
rtr.Post(`/adapters/(?P<id>\S+)/subscribe`, ProtectWithSubscriberKey(apiAdapterSubscribe(renderer.JSON("data"))))
return http.HandlerFunc(rtr.ServeHTTP)
}

69
server/server.go
View file

@ -2,23 +2,23 @@ package server
import (
"context"
"encoding/base64"
"encoding/json"
"errors"
"fmt"
"forge.lightcrystal.systems/lightcrystal/underbbs/adapter"
"forge.lightcrystal.systems/lightcrystal/underbbs/models"
"golang.org/x/time/rate"
"hacklab.nilfm.cc/quartzgun/cookie"
"hacklab.nilfm.cc/quartzgun/renderer"
"io/ioutil"
"log"
"net/http"
"nhooyr.io/websocket"
"strings"
"sync"
"time"
)
type Subscriber struct {
key string
msgs chan []byte
closeSlow func()
}
@ -42,6 +42,9 @@ func New() *BBSServer {
// frontend is here
srvr.serveMux.Handle("/app/", http.StripPrefix("/app/", renderer.Subtree("./dist")))
// api
srvr.serveMux.Handle("/api/", http.StripPrefix("/api", apiMux()))
// websocket
srvr.serveMux.HandleFunc("/subscribe", srvr.subscribeHandler)
srvr.serveMux.HandleFunc("/publish", srvr.publishHandler)
@ -63,54 +66,17 @@ func (self *BBSServer) subscribeHandler(w http.ResponseWriter, r *http.Request)
return
}
// decode subprotocol data into settings objects
data := c.Subprotocol()
data = strings.ReplaceAll(data, ".", "=")
// base64 decode
decoded, err := base64.StdEncoding.DecodeString(data)
if err != nil {
c.Close(3000, err.Error())
return
}
settings := []models.Settings{}
// unmarshal the json into the settings array
err = json.Unmarshal([]byte(decoded), &settings)
if err != nil {
c.Close(3001, err.Error())
return
}
msgc := make(chan models.SocketData)
// attempt to initialize adapters
adapters := make([]adapter.Adapter, 0, 4)
for _, s := range settings {
var a adapter.Adapter
switch s.Protocol {
case "nostr":
a = &adapter.NostrAdapter{}
break
case "masto":
break
default:
break
}
err := a.Init(s, msgc)
if err != nil {
c.Close(3002, err.Error())
return
}
adapters = append(adapters, a)
}
// keep reference to the adapters so we can execute commands on them later
ctx := r.Context()
ctx = c.CloseRead(ctx)
s := &Subscriber{
key: cookie.GenToken(64),
msgs: make(chan []byte, self.subscribeMessageBuffer),
closeSlow: func() {
c.Close(websocket.StatusPolicyViolation, "connection too slow to keep up with messages")
@ -119,13 +85,26 @@ func (self *BBSServer) subscribeHandler(w http.ResponseWriter, r *http.Request)
self.addSubscriber(s, adapters)
defer self.deleteSubscriber(s)
fmt.Println("subscriber added to map")
defer self.deleteSubscriber(s)
defer c.Close(websocket.StatusInternalError, "")
// collect data from the channels injected into the adapters,
// and send it back to the client
// we block until we stop receiving data on all the input channels
go func() {
for {
select {
case msg := <-s.msgs:
writeTimeout(ctx, time.Second*5, c, msg)
case <-ctx.Done():
return //ctx.Err()
}
}
}()
fmt.Println("giving subscriber their key: " + s.key)
s.msgs <- []byte("{ 'key':'" + s.key + " }")
fmt.Println("subscriber key sent, listening on the data channel")
listen([]chan models.SocketData{msgc}, s.msgs)

48
ts/adapter.ts
View file

@ -1,16 +1,27 @@
import NDK, {NDKPrivateKeySigner} from "@nostr-dev-kit/ndk";
import * as nip19 from 'nostr-tools/nip19'
import { createRestAPIClient } from "masto";
import { createRestAPIClient, createStreamingAPIClient } from "masto";
import * as masto from "masto";
type MastodonClient = masto.mastodon.rest.Client;
type MastodonStreamClient = masto.mastodon.streaming.Client;
export class MastodonCompoundClient {
public rest: MastodonClient;
public stream: MastodonStreamClient;
public constructor(c: MastodonClient, s: MastodonStreamClient) {
this.rest = c;
this.stream = s;
}
}
export class Adapter {
public nickname: string = "";
public protocol: string = "";
public identity: any | null;
private _self: NDK | MastodonClient | null = null ;
private _self: NDK | MastodonCompoundClient | null = null ;
public init(): void {};
public getInbox(): void {};
@ -67,21 +78,34 @@ export class Adapter {
adapter.nickname = settings.nickname;
adapter.init = () => {
adapter._self = createRestAPIClient({
const rawServer: string = adapter.identity.server.split("://")[1];
adapter._self = new MastodonCompoundClient(createRestAPIClient({
url: adapter.identity.server,
accessToken: adapter.identity.apiKey
});
}),
createStreamingAPIClient({
streamingApiUrl: `https://${rawServer}/v1/api/streaming`,
accessToken: adapter.identity.apiKey
}));
}
adapter.getInbox = async () => {
let i = 0;
for await (const statuses of (adapter._self as MastodonClient).v1.timelines.public.list()) {
for (const status of statuses) {
console.log(status);
i++;
}
if (i >= 10) break;
}
const rawServer: string = adapter.identity.server.split("://")[1];
let conn = new WebSocket(`wss://${rawServer}/streaming/?i=${adapter.identity.apiKey}`)
conn.addEventListener("open", async (e:any)=> {
console.log(e);
let filter = { type: "connect", body: { channel: "localTimeline", id: crypto.randomUUID() }};
let data = await JSON.stringify(filter);
console.log(data);
conn.send(data);
conn.addEventListener("message", (e:any)=>{console.log(e)});
});
}
return adapter;

17
ts/index.ts
View file

@ -201,31 +201,22 @@ function saveAdapter(): void {
let _conn: WebSocket | null = null;
function connect() {
// import the data from the settings
const settings = _("settings");
if (settings) {
// base64 encode the settings data
let subprotocol: string = "[";
for (let a of settings.adapters) {
subprotocol += JSON.stringify(a) + ",";
}
subprotocol += "]";
subprotocol = btoa(subprotocol).replace("=", ".");
// open the websocket connection with settings as subprotocol
const wsProto = location.protocol == "https:" ? "wss" : "ws";
_conn = new WebSocket(`${wsProto}://${location.host}/subscribe`, subprotocol);
_conn = new WebSocket(`${wsProto}://${location.host}/subscribe`, "");
_conn.addEventListener("open", (e: any) => {
console.log("websocket connection opened");
console.log(JSON.stringify(e));
});
_conn.addEventListener("message", (e: any) => {
console.log(e)
});
_conn.addEventListener("error", (e: any) => {
console.log("websocket connection error");
console.log(JSON.stringify(e));
});
_("websocket", _conn);
}
}
_("addAdapter", addAdapter);

10
ts/serviceWorker.ts
View file

@ -5,5 +5,13 @@ export type {};
declare const self: ServiceWorkerGlobalScope;
self.addEventListener('sync', (e: any) => {
console.log(e);
console.log("I won't see this");
});
self.addEventListener("install", (e: any) => {
console.log("installation proceeding...")
});
self.addEventListener("activate", (e: any) => {
console.log("SW activated!");
});

0
ts/websocket.ts Normal file
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