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import { Injectable } from '@angular/core';
import { Http, Headers, RequestOptionsArgs, Response } from '@angular/http';
import { Location } from '@angular/common';
import { Observable } from 'rxjs/Observable';
import { Subject } from 'rxjs/Subject';
import { BehaviorSubject } from 'rxjs/BehaviorSubject';
import * as io from 'socket.io-client';
import { AlertService } from './alert.service';
// Import RxJs required methods
import 'rxjs/add/operator/map';
import 'rxjs/add/operator/catch';
import 'rxjs/add/observable/throw';
import 'rxjs/add/operator/mergeMap';
export interface IXDSConfigProject {
id: string;
path: string;
hostSyncThingID: string;
label?: string;
}
interface IXDSBuilderConfig {
ip: string;
port: string;
syncThingID: string;
}
interface IXDSFolderConfig {
id: string;
label: string;
path: string;
type: number;
syncThingID: string;
builderSThgID?: string;
status?: string;
}
interface IXDSConfig {
version: number;
builder: IXDSBuilderConfig;
folders: IXDSFolderConfig[];
}
export interface ISdkMessage {
wsID: string;
msgType: string;
data: any;
}
export interface ICmdOutput {
cmdID: string;
timestamp: string;
stdout: string;
stderr: string;
}
export interface ICmdExit {
cmdID: string;
timestamp: string;
code: number;
error: string;
}
export interface IServerStatus {
WS_connected: boolean;
}
const FOLDER_TYPE_CLOUDSYNC = 2;
@Injectable()
export class XDSServerService {
public CmdOutput$ = <Subject<ICmdOutput>>new Subject();
public CmdExit$ = <Subject<ICmdExit>>new Subject();
public Status$: Observable<IServerStatus>;
private baseUrl: string;
private wsUrl: string;
private _status = { WS_connected: false };
private statusSubject = <BehaviorSubject<IServerStatus>>new BehaviorSubject(this._status);
private socket: SocketIOClient.Socket;
constructor(private http: Http, private _window: Window, private alert: AlertService) {
this.Status$ = this.statusSubject.asObservable();
this.baseUrl = this._window.location.origin + '/api/v1';
let re = this._window.location.origin.match(/http[s]?:\/\/([^\/]*)[\/]?/);
if (re === null || re.length < 2) {
console.error('ERROR: cannot determine Websocket url');
} else {
this.wsUrl = 'ws://' + re[1];
this._handleIoSocket();
}
}
private _WSState(sts: boolean) {
this._status.WS_connected = sts;
this.statusSubject.next(Object.assign({}, this._status));
}
private _handleIoSocket() {
this.socket = io(this.wsUrl, { transports: ['websocket'] });
this.socket.on('connect_error', (res) => {
this._WSState(false);
console.error('WS Connect_error ', res);
});
this.socket.on('connect', (res) => {
this._WSState(true);
});
this.socket.on('disconnection', (res) => {
this._WSState(false);
this.alert.error('WS disconnection: ' + res);
});
this.socket.on('error', (err) => {
console.error('WS error:', err);
});
this.socket.on('make:output', data => {
this.CmdOutput$.next(Object.assign({}, <ICmdOutput>data));
});
this.socket.on('make:exit', data => {
this.CmdExit$.next(Object.assign({}, <ICmdExit>data));
});
}
getProjects(): Observable<IXDSFolderConfig[]> {
return this._get('/folders');
}
addProject(cfg: IXDSConfigProject): Observable<IXDSFolderConfig> {
let folder: IXDSFolderConfig = {
id: cfg.id || null,
label: cfg.label || "",
path: cfg.path,
type: FOLDER_TYPE_CLOUDSYNC,
syncThingID: cfg.hostSyncThingID
};
return this._post('/folder', folder);
}
deleteProject(id: string): Observable<IXDSFolderConfig> {
return this._delete('/folder/' + id);
}
exec(cmd: string, args?: string[], options?: any): Observable<any> {
return this._post('/exec',
{
cmd: cmd,
args: args || []
});
}
make(prjID: string, dir: string, args: string): Observable<any> {
return this._post('/make', { id: prjID, rpath: dir, args: args });
}
private _attachAuthHeaders(options?: any) {
options = options || {};
let headers = options.headers || new Headers();
// headers.append('Authorization', 'Basic ' + btoa('username:password'));
headers.append('Accept', 'application/json');
headers.append('Content-Type', 'application/json');
// headers.append('Access-Control-Allow-Origin', '*');
options.headers = headers;
return options;
}
private _get(url: string): Observable<any> {
return this.http.get(this.baseUrl + url, this._attachAuthHeaders())
.map((res: Response) => res.json())
.catch(this._decodeError);
}
private _post(url: string, body: any): Observable<any> {
return this.http.post(this.baseUrl + url, JSON.stringify(body), this._attachAuthHeaders())
.map((res: Response) => res.json())
.catch((error) => {
return this._decodeError(error);
});
}
private _delete(url: string): Observable<any> {
return this.http.delete(this.baseUrl + url, this._attachAuthHeaders())
.map((res: Response) => res.json())
.catch(this._decodeError);
}
private _decodeError(err: any) {
let e: string;
if (typeof err === "object") {
if (err.statusText) {
e = err.statusText;
} else if (err.error) {
e = String(err.error);
} else {
e = JSON.stringify(err);
}
} else {
e = err.json().error || 'Server error';
}
return Observable.throw(e);
}
}
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