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bungie.js
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bungie.js
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import {API_KEY, CLIENT_ID} from './apikey.js';
export class Bungie {
constructor() {
this.auth = {expires: 0, refresh_expires: 0};
let bungienet = new BungieNet(this);
this.net = bungienet.build('');
this.defs = {};
}
store(key, data) {
if (data === null)
localStorage.removeItem(key);
else
localStorage.setItem(key, JSON.stringify(data));
}
get(key) {
let data = localStorage.getItem(key);
if (data)
return JSON.parse(data);
}
async fetch(path, params, method='GET') {
let headers = {
'X-API-Key': API_KEY,
};
if (this.auth.expires > Date.now())
headers['Authorization'] = 'Bearer ' + this.auth.access_token;
let init = {method, headers};
if (params) {
let paramobj = new URLSearchParams();
for (let [k, v] of Object.entries(params))
paramobj.append(k, v);
if (method == 'GET')
path = `${path}?${paramobj.toString()}`;
else {
headers['Content-Type'] = 'application/x-www-form-urlencoded';
init['body'] = paramobj.toString();
}
}
// See https://github.com/Bungie-net/api/issues/853.
if (path.search(/^platform[/]destiny2[/]stats[/]postgamecarnagereport[/]/i) == 0)
path = 'https://stats.bungie.net/' + path;
else
path = 'https://www.bungie.net/' + path;
console.log('fetch(%o, %o)', path, init);
let req = await fetch(path, init);
return req.json();
}
async login() {
let search = new URLSearchParams(location.search);
if (search.get('code') && this.get('auth_nonce') &&
(search.get('state') == this.get('auth_nonce'))) {
this.store('auth_nonce', null);
history.replaceState(null, null, '.');
return this.handleCredentials(await this.net.platform.app.OAuth.token.POST(
{client_id: CLIENT_ID, grant_type: 'authorization_code', code: search.get('code')}));
}
let auth = this.get('auth');
if (auth)
this.auth = auth;
let now = Date.now();
if (this.auth.expires > now)
return;
if (this.auth.refresh_expires > now)
return this.handleCredentials(await this.net.platform.app.OAuth.token.POST(
{client_id: CLIENT_ID, grant_type: 'refresh_token', refresh_token: this.auth.refresh_token}));
let nonce = String(Math.random()).substr(2, 20);
this.store('auth_nonce', nonce);
location.replace(`https://www.bungie.net/en/OAuth/Authorize?client_id=${CLIENT_ID}&response_type=code&state=${nonce}`);
return Promise.reject();
}
handleCredentials(data) {
let now = Date.now();
data.expires = now + data.expires_in * 1000 - 1000;
data.refresh_expires = now + data.refresh_expires_in * 1000 - 1000;
this.auth = data;
this.store('auth', this.auth);
}
async getDef(defType, hash) {
if (!this.defs[defType]) {
if (!this.manifest)
this.manifest = await this.net.platform.destiny2.manifest();
let path = this.manifest.Response.jsonWorldComponentContentPaths.en[`Destiny${defType}Definition`];
this.defs[defType] = await fetch(`https://www.bungie.net${path}`, {credentials: 'omit'}).then(data => data.json());
}
return this.defs[defType][hash];
}
async getCurrentUser() {
let usermod = await import('./user.js');
let userdata = await this.net.platform.user.GetMembershipsForCurrentUser();
return new usermod.User(this, userdata.Response);
}
iconUrl(url) {
return 'https://www.bungie.net' + (url || '/img/misc/missing_icon_d2.png');
}
}
class BungieNet {
constructor(bungie) {
this.bungie = bungie;
}
build(path) {
let cache = function() {};
cache.path = path;
cache.cache = {};
return new Proxy(cache, this);
}
get(target, name) {
if (!target.cache[name]) {
if (/^[A-Z]+$/.test(name))
target.cache[name] = params => this.bungie.fetch(target.path, params, name);
else
target.cache[name] = this.build(`${target.path}${name}/`);
}
return target.cache[name];
}
apply(target, thisArg, args) {
return this.get(target, 'GET').apply(thisArg, args);
}
}