检查hapijs的图像分辨率

Question

我使用的是hapi v17.1，.I不是一个专业的程序员。为了进行服务器端图像验证，我需要在hapi js中获得图像的分辨率。我试过image-size插件

var sizeOf = require('image-size');
var { promisify } = require('util');
var url = require('url');
var https = require('http');


................
// my code 
................


const host = 'http://' + request.info.host + '/';
imageName = host + path;

try {
    var options = url.parse(imageName);

    https.get(options, function (response) {
        var chunks = [];
        response.on('data', function (chunk) {
            chunks.push(chunk);
        }).on('end', function () {
            var buffer = Buffer.concat(chunks);

            console.log("image height and width = ",sizeOf(buffer));

        });
    });

} catch (err) {
    console.log('error occured = ', err);
}

图像大小插件

对于http，它工作得很好，但是我不能对https这样做。

当我尝试https url并显示错误时

error occured =  TypeError: https.get is not a function
    at handler (/home/jeslin/projects/hapi/gg-admin/app/controllers/web/advertisement.js:178:31)
    at <anonymous>

如何在https image url中实现这一点？

Answer 1

对于https请求，您应该需要https模块require('https')、示例片段来处理http & https请求以供参考。

var sizeOf = require('image-size');
var https = require('https');
var http = require('http');
var url = require('url');

const host = 'http://picsum.photos/200/300';

const request = (host.indexOf('https') > -1) ? https : http;

try {
    request.get(host, function (response) {
        var chunks = [];
        response.on('data', function (chunk) {
            chunks.push(chunk);
        }).on('end', function () {
            var buffer = Buffer.concat(chunks);

            console.log("image height and width = ",sizeOf(buffer));

        });
    });
} catch (err) {
    console.log('error occured = ', err);
};