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This commit is contained in:
syuilo 2021-05-14 11:46:39 +09:00
parent b53a6bfe0c
commit cb0e275db9
7 changed files with 520 additions and 1 deletions
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66
package-lock.json generated
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@ -7,6 +7,12 @@
"": {
"name": "misskey-js",
"version": "0.0.0",
"dependencies": {
"@vue/reactivity": "^3.0.11",
"autobind-decorator": "^2.4.0",
"eventemitter3": "^4.0.7",
"reconnecting-websocket": "^4.4.0"
},
"devDependencies": {
"@types/mocha": "8.2.x",
"@types/node": "14.14.x",
@ -199,6 +205,19 @@
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"dev": true
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@ -349,6 +368,15 @@
"node": ">=0.10.0"
}
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@ -2082,6 +2115,11 @@
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@ -3006,6 +3044,19 @@
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@ -3119,6 +3170,11 @@
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"dev": true
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@ -3525,6 +3581,11 @@
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@ -4424,6 +4485,11 @@
"picomatch": "^2.2.1"
}
},
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},
"redent": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/redent/-/redent-3.0.0.tgz",

8
package.json
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@ -24,5 +24,11 @@
},
"files": [
"built"
]
],
"dependencies": {
"@vue/reactivity": "^3.0.11",
"autobind-decorator": "^2.4.0",
"eventemitter3": "^4.0.7",
"reconnecting-websocket": "^4.4.0"
}
}

42
src/api.ts Normal file
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@ -0,0 +1,42 @@
import { Endpoints } from './endpoints';
export class MisskeyClient {
public i: { token: string; } | null = null;
private apiUrl: string;
constructor(opts: {
apiUrl: MisskeyClient['apiUrl'];
}) {
this.apiUrl = opts.apiUrl;
}
public api<E extends keyof Endpoints>(
endpoint: E, data: Endpoints[E]['req'] = {}, token?: string | null | undefined
): Promise<Endpoints[E]['res']> {
const promise = new Promise<Endpoints[E]['res']>((resolve, reject) => {
// Append a credential
if (this.i) (data as Record<string, any>).i = this.i.token;
if (token !== undefined) (data as Record<string, any>).i = token;
// Send request
fetch(endpoint.indexOf('://') > -1 ? endpoint : `${this.apiUrl}/${endpoint}`, {
method: 'POST',
body: JSON.stringify(data),
credentials: 'omit',
cache: 'no-cache'
}).then(async (res) => {
const body = res.status === 204 ? null : await res.json();
if (res.status === 200) {
resolve(body);
} else if (res.status === 204) {
resolve(null);
} else {
reject(body.error);
}
}).catch(reject);
});
return promise;
}
}

8
src/endpoints.ts Normal file
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@ -0,0 +1,8 @@
import { Instance, User } from './types';
type TODO = Record<string, any>;
export type Endpoints = {
'i': { req: TODO; res: User; };
'meta': { req: { detail?: boolean; }; res: Instance; };
};

322
src/streaming.ts Normal file
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@ -0,0 +1,322 @@
import autobind from 'autobind-decorator';
import { EventEmitter } from 'eventemitter3';
import ReconnectingWebsocket from 'reconnecting-websocket';
import { stringify } from 'querystring';
import { markRaw } from '@vue/reactivity';
function urlQuery(obj: {}): string {
return stringify(Object.entries(obj)
.filter(([, v]) => Array.isArray(v) ? v.length : v !== undefined)
.reduce((a, [k, v]) => (a[k] = v, a), {} as Record<string, any>));
}
/**
* Misskey stream connection
*/
export default class Stream extends EventEmitter {
private stream: ReconnectingWebsocket;
public state: 'initializing' | 'reconnecting' | 'connected' = 'initializing';
private sharedConnectionPools: Pool[] = [];
private sharedConnections: SharedConnection[] = [];
private nonSharedConnections: NonSharedConnection[] = [];
constructor(wsUrl: string, user: { token: string; } | null, options?: {
}) {
super();
const query = urlQuery({
i: user?.token,
_t: Date.now(),
});
this.stream = new ReconnectingWebsocket(`${wsUrl}?${query}`, '', { minReconnectionDelay: 1 }); // https://github.com/pladaria/reconnecting-websocket/issues/91
this.stream.addEventListener('open', this.onOpen);
this.stream.addEventListener('close', this.onClose);
this.stream.addEventListener('message', this.onMessage);
}
@autobind
public useSharedConnection(channel: string, name?: string): SharedConnection {
let pool = this.sharedConnectionPools.find(p => p.channel === channel);
if (pool == null) {
pool = new Pool(this, channel);
this.sharedConnectionPools.push(pool);
}
const connection = markRaw(new SharedConnection(this, channel, pool, name));
this.sharedConnections.push(connection);
return connection;
}
@autobind
public removeSharedConnection(connection: SharedConnection) {
this.sharedConnections = this.sharedConnections.filter(c => c !== connection);
}
@autobind
public removeSharedConnectionPool(pool: Pool) {
this.sharedConnectionPools = this.sharedConnectionPools.filter(p => p !== pool);
}
@autobind
public connectToChannel(channel: string, params?: any): NonSharedConnection {
const connection = markRaw(new NonSharedConnection(this, channel, params));
this.nonSharedConnections.push(connection);
return connection;
}
@autobind
public disconnectToChannel(connection: NonSharedConnection) {
this.nonSharedConnections = this.nonSharedConnections.filter(c => c !== connection);
}
/**
* Callback of when open connection
*/
@autobind
private onOpen() {
const isReconnect = this.state === 'reconnecting';
this.state = 'connected';
this.emit('_connected_');
// チャンネル再接続
if (isReconnect) {
for (const p of this.sharedConnectionPools)
p.connect();
for (const c of this.nonSharedConnections)
c.connect();
}
}
/**
* Callback of when close connection
*/
@autobind
private onClose() {
if (this.state === 'connected') {
this.state = 'reconnecting';
this.emit('_disconnected_');
}
}
/**
* Callback of when received a message from connection
*/
@autobind
private onMessage(message: { data: string; }) {
const { type, body } = JSON.parse(message.data);
if (type === 'channel') {
const id = body.id;
let connections: Connection[];
connections = this.sharedConnections.filter(c => c.id === id);
if (connections.length === 0) {
const found = this.nonSharedConnections.find(c => c.id === id);
if (found) {
connections = [found];
}
}
for (const c of connections.filter(c => c != null)) {
c.emit(body.type, Object.freeze(body.body));
c.inCount++;
}
} else {
this.emit(type, Object.freeze(body));
}
}
/**
* Send a message to connection
*/
@autobind
public send(typeOrPayload: any, payload?: any) {
const data = payload === undefined ? typeOrPayload : {
type: typeOrPayload,
body: payload
};
this.stream.send(JSON.stringify(data));
}
/**
* Close this connection
*/
@autobind
public close() {
this.stream.removeEventListener('open', this.onOpen);
this.stream.removeEventListener('message', this.onMessage);
}
}
let idCounter = 0;
class Pool {
public channel: string;
public id: string;
protected stream: Stream;
public users = 0;
private disposeTimerId: any;
private isConnected = false;
constructor(stream: Stream, channel: string) {
this.channel = channel;
this.stream = stream;
this.id = (++idCounter).toString();
this.stream.on('_disconnected_', this.onStreamDisconnected);
}
@autobind
private onStreamDisconnected() {
this.isConnected = false;
}
@autobind
public inc() {
if (this.users === 0 && !this.isConnected) {
this.connect();
}
this.users++;
// タイマー解除
if (this.disposeTimerId) {
clearTimeout(this.disposeTimerId);
this.disposeTimerId = null;
}
}
@autobind
public dec() {
this.users--;
// そのコネクションの利用者が誰もいなくなったら
if (this.users === 0) {
// また直ぐに再利用される可能性があるので、一定時間待ち、
// 新たな利用者が現れなければコネクションを切断する
this.disposeTimerId = setTimeout(() => {
this.disconnect();
}, 3000);
}
}
@autobind
public connect() {
if (this.isConnected) return;
this.isConnected = true;
this.stream.send('connect', {
channel: this.channel,
id: this.id
});
}
@autobind
private disconnect() {
this.stream.off('_disconnected_', this.onStreamDisconnected);
this.stream.send('disconnect', { id: this.id });
this.stream.removeSharedConnectionPool(this);
}
}
abstract class Connection extends EventEmitter {
public channel: string;
protected stream: Stream;
public abstract id: string;
public name?: string; // for debug
public inCount: number = 0; // for debug
public outCount: number = 0; // for debug
constructor(stream: Stream, channel: string, name?: string) {
super();
this.stream = stream;
this.channel = channel;
this.name = name;
}
@autobind
public send(id: string, typeOrPayload: any, payload?: any) {
const type = payload === undefined ? typeOrPayload.type : typeOrPayload;
const body = payload === undefined ? typeOrPayload.body : payload;
this.stream.send('ch', {
id: id,
type: type,
body: body
});
this.outCount++;
}
public abstract dispose(): void;
}
class SharedConnection extends Connection {
private pool: Pool;
public get id(): string {
return this.pool.id;
}
constructor(stream: Stream, channel: string, pool: Pool, name?: string) {
super(stream, channel, name);
this.pool = pool;
this.pool.inc();
}
@autobind
public send(typeOrPayload: any, payload?: any) {
super.send(this.pool.id, typeOrPayload, payload);
}
@autobind
public dispose() {
this.pool.dec();
this.removeAllListeners();
this.stream.removeSharedConnection(this);
}
}
class NonSharedConnection extends Connection {
public id: string;
protected params: any;
constructor(stream: Stream, channel: string, params?: any) {
super(stream, channel);
this.params = params;
this.id = (++idCounter).toString();
this.connect();
}
@autobind
public connect() {
this.stream.send('connect', {
channel: this.channel,
id: this.id,
params: this.params
});
}
@autobind
public send(typeOrPayload: any, payload?: any) {
super.send(this.id, typeOrPayload, payload);
}
@autobind
public dispose() {
this.removeAllListeners();
this.stream.send('disconnect', { id: this.id });
this.stream.disconnectToChannel(this);
}
}

73
src/types.ts Normal file
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@ -0,0 +1,73 @@
type ID = string;
export type User = {
id: ID;
username: string;
host: string | null;
name: string;
onlineStatus: 'online' | 'active' | 'offline' | 'unknown';
avatarUrl: string;
avatarBlurhash: string;
emojis: {
name: string;
url: string;
}[];
};
export type DriveFile = {
id: ID;
createdAt: string;
isSensitive: boolean;
name: string;
thumbnailUrl: string;
url: string;
type: string;
size: number;
md5: string;
blurhash: string;
properties: Record<string, any>;
};
export type Note = {
id: ID;
createdAt: string;
text: string | null;
cw: string | null;
user: User;
userId: User['id'];
reply?: Note;
replyId: Note['id'];
renote?: Note;
renoteId: Note['id'];
files: DriveFile[];
fileIds: DriveFile['id'][];
visibility: 'public' | 'home' | 'followers' | 'specified';
myReaction?: string;
reactions: Record<string, number>;
poll?: {
expiresAt: string | null;
multiple: boolean;
choices: {
isVoted: boolean;
text: string;
votes: number;
}[];
};
emojis: {
name: string;
url: string;
}[];
};
export type Instance = {
emojis: {
category: string;
}[];
ads: {
id: ID;
ratio: number;
place: string;
url: string;
imageUrl: string;
}[];
};

2
tsconfig.json
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@ -8,6 +8,8 @@
"removeComments": true,
"strict": true,
"strictFunctionTypes": true,
"strictNullChecks": true,
"experimentalDecorators": true,
"noImplicitReturns": true,
"esModuleInterop": true,
},