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nodebb/src/image.js

56 lines
1.2 KiB
JavaScript

'use strict';
var fs = require('fs'),
lwip = require('lwip'),
plugins = require('./plugins');
var image = {};
image.resizeImage = function(path, extension, width, height, callback) {
if (plugins.hasListeners('filter:image.resize')) {
plugins.fireHook('filter:image.resize', {
path: path,
extension: extension,
width: width,
height: height
}, function(err, data) {
callback(err);
});
} else {
lwip.open(path, function(err, image) {
image.batch()
.cover(width, height)
.crop(width, height)
.writeFile(path, function(err) {
callback(err)
})
});
}
};
image.normalise = function(path, extension, callback) {
if (plugins.hasListeners('filter:image.normalise')) {
plugins.fireHook('filter:image.normalise', {
path: path,
extension: extension
}, function(err, data) {
callback(err);
});
} else {
lwip.open(path, function(err, image) {
if (err) {
return callback(err);
}
image.writeFile(path, 'png', callback)
});
}
};
image.convertImageToBase64 = function(path, callback) {
fs.readFile(path, function(err, data) {
callback(err, data ? data.toString('base64') : null);
});
};
module.exports = image;