plumier/lib/validator.js

Delightful Node.js Rest Framework

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const core_1 = require("@plumier/core");
const bytes_1 = tslib_1.__importDefault(require("bytes"));
function validateSize(opt, val, msg) {
    const expected = (typeof opt === "string") ? (0, bytes_1.default)(opt) : opt;
    if (val > expected)
        return msg !== null && msg !== void 0 ? msg : "File size exceed the limit allowed";
}
function validateMime(opt, val, msg) {
    const regex = new RegExp(opt);
    if (!regex.test(val))
        return msg !== null && msg !== void 0 ? msg : "Invalid file type";
}
function validateFile(opt, val) {
    const list = [];
    if (typeof opt === "object") {
        if (opt.maxSize)
            list.push(validateSize(opt.maxSize, val.size, opt.invalidSizeMessage));
        if (opt.mime)
            list.push(validateMime(opt.mime, val.type, opt.invalidMimeMessage));
    }
    else
        list.push(validateSize(opt, val.size));
    const result = list.filter((x) => !!x);
    if (result.length > 0)
        return result.join(", ");
}
core_1.val.file = (opt) => {
    return core_1.val.custom((val) => {
        if (Array.isArray(val)) {
            const result = [];
            for (const [i, value] of val.entries()) {
                const message = validateFile(opt, value);
                if (message)
                    result.push({ path: i.toString(), messages: [message] });
            }
            return result;
        }
        else
            return validateFile(opt, val);
    });
};
core_1.val.image = (opt) => {
    var _a;
    const invalidMimeMessage = "Invalid image file";
    if (typeof opt === "object")
        return core_1.val.file(Object.assign(Object.assign({}, opt), { mime: /^image\//i, invalidMimeMessage: (_a = opt.invalidImageMessage) !== null && _a !== void 0 ? _a : invalidMimeMessage, invalidSizeMessage: opt.invalidSizeMessage }));
    else if (typeof opt === "string")
        return core_1.val.file({ maxSize: opt, mime: /^image\//i, invalidMimeMessage });
    else
        return core_1.val.file({ mime: /^image\//i, invalidMimeMessage });
};