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import request = require('request-promise');
import { GoogleApiServerUtils } from './GoogleApiServerUtils';
import * as fs from 'fs';
import { Utils } from '../../../Utils';
import * as path from 'path';
import { Opt } from '../../../new_fields/Doc';
import * as sharp from 'sharp';
const uploadDirectory = path.join(__dirname, "../../public/files/");
export namespace GooglePhotosUploadUtils {
export interface Paths {
uploadDirectory: string;
credentialsPath: string;
tokenPath: string;
}
export interface MediaInput {
url: string;
description: string;
}
const prepend = (extension: string) => `https://photoslibrary.googleapis.com/v1/${extension}`;
const headers = (type: string) => ({
'Content-Type': `application/${type}`,
'Authorization': Bearer,
});
let Bearer: string;
let Paths: Paths;
export const initialize = async (paths: Paths) => {
Paths = paths;
const { tokenPath, credentialsPath } = paths;
const token = await GoogleApiServerUtils.RetrieveAccessToken({ tokenPath, credentialsPath });
Bearer = `Bearer ${token}`;
};
export const DispatchGooglePhotosUpload = async (url: string) => {
const body = await request(url, { encoding: null });
const parameters = {
method: 'POST',
headers: {
...headers('octet-stream'),
'X-Goog-Upload-File-Name': path.basename(url),
'X-Goog-Upload-Protocol': 'raw'
},
uri: prepend('uploads'),
body
};
return new Promise<any>(resolve => request(parameters, (error, _response, body) => resolve(error ? undefined : body)));
};
export const CreateMediaItems = (newMediaItems: any[], album?: { id: string }) => {
return new Promise<any>((resolve, reject) => {
const parameters = {
method: 'POST',
headers: headers('json'),
uri: prepend('mediaItems:batchCreate'),
body: { newMediaItems } as any,
json: true
};
album && (parameters.body.albumId = album.id);
request(parameters, (error, _response, body) => {
if (error) {
reject(error);
} else {
resolve(body);
}
});
});
};
}
export namespace DownloadUtils {
export interface Size {
width: number;
suffix: string;
}
export const Sizes: { [size: string]: Size } = {
SMALL: { width: 100, suffix: "_s" },
MEDIUM: { width: 400, suffix: "_m" },
LARGE: { width: 900, suffix: "_l" },
};
const png = ".png";
const pngs = [".png", ".PNG"];
const jpgs = [".jpg", ".JPG", ".jpeg", ".JPEG"];
const formats = [".jpg", ".png", ".gif"];
const size = "content-length";
const type = "content-type";
export interface UploadInformation {
mediaPaths: string[];
fileNames: { [key: string]: string };
contentSize?: number;
contentType?: string;
}
const generate = (prefix: string, url: string) => `${prefix}upload_${Utils.GenerateGuid()}${path.extname(url).toLowerCase()}`;
const sanitize = (filename: string) => filename.replace(/\s+/g, "_");
export const UploadImage = async (url: string, filename?: string, prefix = ""): Promise<Opt<UploadInformation>> => {
const resolved = filename ? sanitize(filename) : generate(prefix, url);
const extension = path.extname(url) || path.extname(resolved) || png;
let information: UploadInformation = {
mediaPaths: [],
fileNames: { clean: resolved }
};
const { isLocal, stream, normalized } = classify(url);
url = normalized;
if (!isLocal) {
const metadata = (await new Promise<any>((resolve, reject) => {
request.head(url, async (error, res) => {
if (error) {
return reject(error);
}
resolve(res);
});
})).headers;
information.contentSize = parseInt(metadata[size]);
information.contentType = metadata[type];
}
return new Promise<UploadInformation>(async (resolve, reject) => {
const resizers = [
{ resizer: sharp().rotate(), suffix: "_o" },
...Object.values(Sizes).map(size => ({
resizer: sharp().resize(size.width, undefined, { withoutEnlargement: true }).rotate(),
suffix: size.suffix
}))
];
if (pngs.includes(extension)) {
resizers.forEach(element => element.resizer = element.resizer.png());
} else if (jpgs.includes(extension)) {
resizers.forEach(element => element.resizer = element.resizer.jpeg());
} else if (!formats.includes(extension.toLowerCase())) {
return reject();
}
for (let resizer of resizers) {
const suffix = resizer.suffix;
let mediaPath: string;
await new Promise<void>(resolve => {
const filename = resolved.substring(0, resolved.length - extension.length) + suffix + extension;
information.mediaPaths.push(mediaPath = uploadDirectory + filename);
information.fileNames[suffix] = filename;
stream(url).pipe(resizer.resizer).pipe(fs.createWriteStream(mediaPath))
.on('close', resolve)
.on('error', reject);
});
}
resolve(information);
});
};
const classify = (url: string) => {
const isLocal = /Dash-Web(\\|\/)src(\\|\/)server(\\|\/)public(\\|\/)files/g.test(url);
return {
isLocal,
stream: isLocal ? fs.createReadStream : request,
normalized: isLocal ? path.normalize(url) : url
};
};
export const createIfNotExists = async (path: string) => {
if (await new Promise<boolean>(resolve => fs.exists(path, resolve))) {
return true;
}
return new Promise<boolean>(resolve => fs.mkdir(path, error => resolve(error === null)));
};
export const Destroy = (mediaPath: string) => new Promise<boolean>(resolve => fs.unlink(mediaPath, error => resolve(error === null)));
}
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