libmodulor
Version:
A TypeScript library to create platform-agnostic applications
71 lines (70 loc) • 2.86 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
return function (target, key) { decorator(target, key, paramIndex); }
};
import { extname } from 'node:path';
import { inject, injectable } from 'inversify';
const MAPPING = new Map([['jpeg', 'jpg']]);
let NodeFileBinFileMetadataManager = class NodeFileBinFileMetadataManager {
shellCommandExecutor;
// This is not ideal at all but it solves most of the requirements,
// without having to install an external package such as file-type.
// If need be, one can create their own implementation.
constructor(shellCommandExecutor) {
this.shellCommandExecutor = shellCommandExecutor;
}
async info(file) {
const input = Buffer.from(await file.bytes());
const extOut = await this.call('extension', input);
const mimeTypeOut = await this.call('mime-type', input);
let ext = extOut.trim();
if (ext.includes('/')) {
ext =
ext
.split('/')
.map((e) => e.trim())
.at(0) ?? '';
}
if (!ext || ext === '???') {
ext = extname(file.name).replaceAll('.', '');
}
const mapped = MAPPING.get(ext);
if (mapped) {
ext = mapped;
}
ext = ext.toLocaleLowerCase();
const mimeType = mimeTypeOut.trim();
return {
ext,
mimeType,
};
}
async call(field, input) {
const res = await this.shellCommandExecutor.exec({
bin: 'file',
opts: {
args: ['-b', `--${field}`, '-'],
stdin: input,
},
});
// It sends some errors to stdout...
if (res.includes('cannot')) {
throw new Error(res);
}
return res;
}
};
NodeFileBinFileMetadataManager = __decorate([
injectable(),
__param(0, inject('ShellCommandExecutor')),
__metadata("design:paramtypes", [Object])
], NodeFileBinFileMetadataManager);
export { NodeFileBinFileMetadataManager };