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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 | 1x 1x 1x 1x 7x 7x 3x 5x 2x 5x 3x 7x 5x 5x 5x 5x 12x 5x 5x 5x 5x | import * as crypto from 'crypto';
import * as querystring from 'querystring';
import * as rp from 'request-promise';
declare const Buffer;
interface RequestOpts {
json?: any;
method: string;
qs: any;
body?: any;
uri?: string;
}
interface Authentication {
access_key: string;
tonce: number;
signature: string;
}
interface Keys {
accessKey: string;
secret: string;
}
export class Common {
private uri: string;
private api: string;
private keys: Keys;
constructor(accessKey?: string, secret?: string) {
this.api = '/api/v2/';
this.uri = `https://acx.io${this.api}`;
if (accessKey && secret) {
this.keys = { accessKey, secret };
}
}
public async request(auth: boolean, method: string, path: string, qs?: any, body?: any): Promise<any> {
const opts: RequestOpts = {
uri: `${this.uri}${path}`,
method: method,
qs: qs,
body: body,
json: true,
};
if (auth) {
const secureQs = this.generateAuthentication(this.keys.accessKey, this.keys.secret, method, path, qs);
if (!opts.qs) {
opts.qs = {};
}
opts.qs = Object.assign(opts.qs, secureQs);
if (method === 'POST') { // Remove QS
Object.keys(body).forEach(key => opts.qs[key] && delete opts.qs[key]);
}
}
return rp(opts);
}
private generateAuthentication(accessKey: string, secret: string, method: string, path: string, qs: any): Authentication {
const d = Date.now();
const message = [
method,
`${this.api}${path}`,
];
const signatureParams = Object.assign({
access_key: accessKey,
tonce: d,
}, qs);
const orderedSignatureParams = {};
Object.keys(signatureParams).sort()
.forEach(key => {
if (signatureParams[key]) {
orderedSignatureParams[key] = signatureParams[key];
}
});
const stringQs = querystring.stringify(orderedSignatureParams);
const param = message.join('|') + '|' + stringQs;
const signature = crypto.createHmac('sha256', new Buffer(secret, 'utf8'))
.update(param)
.digest('hex');
return Object.assign(signatureParams, { signature: signature });
}
}
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