41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
'use strict';
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// HTTP status codes by name
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const codes = require('../routes/http-codes');
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// library to check image dimensions from file buffer
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var sizeOf = require('buffer-image-size');
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/**
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* check if id has valid UUID format
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*
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* @param {object} req
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* @param {function} res
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* @param {function} next
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* @return {boolean}
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*/
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const idValidator = (req, res, next) => {
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const reqId = req.params.id;
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if (!reqId.match(/^[0-9a-fA-F]{24}$/)) {
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const err = new Error('Invalid request id format');
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err.status = codes.notfound;
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return next(err);
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}
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next();
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};
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const imageDimensionValidator = (imageFileBuf, maxWidth, maxHeight) => {
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const dimensions = sizeOf(imageFileBuf);
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console.log(dimensions.width)
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console.log(dimensions.height)
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if (dimensions.width > maxWidth || dimensions.height > maxHeight) {
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let err = new Error(`Image exceeds maximum dimensions of ${maxWidth}px width and ${maxHeight}px height`);
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err.status = codes.wrongrequest;
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return err;
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}
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};
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exports.idValidator = idValidator;
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exports.imageDimensionValidator = imageDimensionValidator;
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