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Updated logic to import servers, to not check the file type

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This commit is contained in:
Alejandro Celaya
2021-09-12 09:54:17 +02:00
parent c6cca9c91f
commit 91e003153b
2 changed files with 77 additions and 22 deletions
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32
src/servers/services/ServersImporter.ts
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@@ -1,29 +1,37 @@
import { CsvJson } from 'csvjson';
import { ServerData } from '../data';
interface CsvFile extends File {
type: 'text/csv' | 'text/comma-separated-values' | 'application/csv';
}
const validateServer = (server: any): server is ServerData =>
typeof server.url === 'string' && typeof server.apiKey === 'string' && typeof server.name === 'string';
const CSV_MIME_TYPES = [ 'text/csv', 'text/comma-separated-values', 'application/csv' ];
const isCsv = (file?: File | null): file is CsvFile => !!file && CSV_MIME_TYPES.includes(file.type);
const validateServers = (servers: any): servers is ServerData[] =>
Array.isArray(servers) && servers.every(validateServer);
export default class ServersImporter {
public constructor(private readonly csvjson: CsvJson, private readonly fileReaderFactory: () => FileReader) {}
public constructor(private readonly csvJson: CsvJson, private readonly fileReaderFactory: () => FileReader) {}
public readonly importServersFromFile = async (file?: File | null): Promise<ServerData[]> => {
if (!isCsv(file)) {
throw new Error('No file provided or file is not a CSV');
if (!file) {
throw new Error('No file provided');
}
const reader = this.fileReaderFactory();
return new Promise((resolve) => {
return new Promise((resolve, reject) => {
reader.addEventListener('loadend', (e: ProgressEvent<FileReader>) => {
const content = e.target?.result?.toString() ?? '';
const servers = this.csvjson.toObject<ServerData>(content);
try {
// TODO Read as stream, otherwise, if the file is too big, this will block the browser tab
const content = e.target?.result?.toString() ?? '';
const servers = this.csvJson.toObject(content);
resolve(servers);
if (!validateServers(servers)) {
throw new Error('Provided file does not have the right format.');
}
resolve(servers);
} catch (e) {
reject(e);
}
});
reader.readAsText(file);
});