import { AvatarService } from './avatar.service';
import { Injectable, Inject } from 'ng-metadata/core';
@Injectable(AvatarService.name)
export class AvatarServiceImpl implements AvatarService {
private cache: {[cacheKey: string]: string} = {};
constructor(@Inject('Config') private Config: any,
@Inject('md5') private md5: any) {
}
public getAvatar(hash: string, size: number = 16, notFound: string = '404'): string {
var avatarURL: string;
switch (this.Config['AVATAR_KIND']) {
case 'local':
avatarURL = `/avatar/${hash}?size=${size}`;
break;
case 'gravatar':
avatarURL = `//www.gravatar.com/avatar/${hash}?d=${notFound}&size=${size}`;
return avatarURL;
public computeHash(email: string = '', name: string = ''): string {
const cacheKey: string = email + ':' + name;
if (this.cache[cacheKey]) {
return this.cache[cacheKey];
var hash: string = this.md5.createHash(email.toString().toLowerCase());
if (name) {
hash = name[0] + hash;
} else if (email) {
hash = email[0] + hash;
return this.cache[cacheKey] = hash;