Question

我正在执行一个meme命令，该命令从meme subreddit发送一个随机的meme，发现所有内容（嵌入中的实际图像除外）后，我将图像记录到控制台，并返回了403错误。如果有人能够提供帮助，将不胜感激。

代码：

const https = require('https');
const Discord = require('discord.js');
const url = 'https://www.reddit.com/r/meme/hot/.json?limit=100'

module.exports = {
    name: 'meme',
    description: 'sends meme',
    execute(message, args) {

        https.get(url, (result) => {
            var body = ''
            result.on('data', (chunk) => {
                body += chunk
            })

            result.on('end', () => {
                var response = JSON.parse(body)
                var index = response.data.children[Math.floor(Math.random() * 99) + 1].data

                if (index.post_hint !== 'image') {

                    var text = index.selftext
                    const textembed = new Discord.MessageEmbed()
                        .setTitle(subRedditName)
                        .setColor(9384170)
                        .setDescription(`[${title}](${link})\n\n${text}`)
                        .setURL(`https://reddit.com/${subRedditName}`)

                    message.channel.send(textembed)
                }

                var image = index.preview.images[0].source.url
                var title = index.title
                var link = 'https://reddit.com' + index.permalink
                var subRedditName = index.subreddit_name_prefixed

                if (index.post_hint !== 'image') {
                    const textembed = new Discord.RichEmbed()
                        .setTitle(subRedditName)
                        .setColor(9384170)
                        .setDescription(`[${title}](${link})\n\n${text}`)
                        .setURL(`https://reddit.com/${subRedditName}`)

                    message.channel.send(textembed)
                }
                console.log(image);
                const imageembed = new Discord.MessageEmbed()
                    .setTitle(subRedditName)
                    .setImage(image)
                    .setColor(9384170)
                    .setDescription(`[${title}](${link})`)
                    .setURL(`https://reddit.com/${subRedditName}`)
                message.channel.send(imageembed)
            }).on('error', function (e) {
                console.log('Got an error: ', e)
            })
        })
    },


}

Answer 1

我尝试了您的代码，发现图像URL中的&编码为Redd。&（例如：https://preview.redd.it/z8jsjzvkhq051.jpg?auto=webp&s=bb492d4861f48b62da806584f26bcc15f4d6663a），它无法理解并返回403错误。

只需将图像网址中的&替换为&，它对我有用。

const https = require('https');
const Discord = require('discord.js');
const url = 'https://www.reddit.com/r/meme/hot/.json?limit=100'

module.exports = {
    name: 'meme',
    description: 'sends meme',
    execute(message, args) {

        https.get(url, (result) => {
            var body = ''
            result.on('data', (chunk) => {
                body += chunk
            })

            result.on('end', () => {
                var response = JSON.parse(body)
                var index = response.data.children[Math.floor(Math.random() * 99) + 1].data

                if (index.post_hint !== 'image') {

                    var text = index.selftext
                    const textembed = new Discord.MessageEmbed()
                        .setTitle(subRedditName)
                        .setColor(9384170)
                        .setDescription(`[${title}](${link})\n\n${text}`)
                        .setURL(`https://reddit.com/${subRedditName}`)

                    message.channel.send(textembed)
                }

                var image = index.preview.images[0].source.url.replace('&amp;', '&')
                var title = index.title
                var link = 'https://reddit.com' + index.permalink
                var subRedditName = index.subreddit_name_prefixed

                if (index.post_hint !== 'image') {
                    const textembed = new Discord.RichEmbed()
                        .setTitle(subRedditName)
                        .setColor(9384170)
                        .setDescription(`[${title}](${link})\n\n${text}`)
                        .setURL(`https://reddit.com/${subRedditName}`)

                    message.channel.send(textembed)
                }
                console.log(image);
                const imageembed = new Discord.MessageEmbed()
                    .setTitle(subRedditName)
                    .setImage(image)
                    .setColor(9384170)
                    .setDescription(`[${title}](${link})`)
                    .setURL(`https://reddit.com/${subRedditName}`)
                message.channel.send(imageembed)
            }).on('error', function (e) {
                console.log('Got an error: ', e)
            })
        })
    },
}

Answer 2

这有点难以读，因为您重复了两次代码块（两个文本嵌入和img嵌入）

第一个[Math.floor(Math.random() * 99) + 1] => [Math.floor(Math.random() * 100)] 第二个使得它可以选择任何值，第一个永远不能为0。

尝试一下（在索引变量后插入代码）

const isImage = index.post_hint === "image";
const subRedditName = index.subreddit_name_prefixed;
const title = index.title;
const link = 'https://reddit.com' + index.permalink;
const text = !isImage && index.selfText;
const desc = `[${title}](${link})`;

const embed = new Discord.MessageEmbed()
    .setTitle(subRedditName)
    .setColor(9384170)
    .setDescription(desc + (text ? `\n\n${text}` : ""))
    .setURL(`https://reddit.com/${subRedditName}`);

if (isImage) {
    const img = index.preview.images[0].source.url;
    embed.setImage(img);
}

messsage.channel.send(embed);

Answer 3

我调整了代码以使其适用于任何 subreddit。所以你只会做（前缀）模因有趣，它会搜索前 100 个或更少的帖子以查找 subreddit“有趣”。我还添加了 nsfw 检查。如果您不在 discord 上的 nsfw 频道中，那么它将浏览前 100 个帖子中的每一个，并检查它是否是 nsfw。如果是，那么它将从我将每个帖子推入的数组中删除它。如果它找不到非 nsfw 帖子，那么它会在聊天中告诉您。但是，如果您在 nsfw 聊天中，它只会从它找到的前 100 个帖子中随机选择一个帖子。

旁注：我找不到检查 subreddit 是否存在的方法，所以我只是检查结果是否超过 1000 个字符。任何存在的 subreddit 应该超过 1000 个字符。任何不存在的字符都应少于 1000 个。

const prefix = '.'
const args = message.content.substring(1).split(" ")
if (message.content.startsWith(prefix){
    if (args[0] == 'meme'){
        if (args[1] != null){
            var url = `https://www.reddit.com/r/${args[1]}/hot/.json?limit=100`
        } else {
            var url = `https://www.reddit.com/r/meme/hot/.json?limit=100`
        }
            https.get(url, (result) => {
                var body = ''
                var chunked = false
                result.on('data', (chunk) => {
                    body += chunk
                    if (chunked == false){
                        chunked = true
                    }
                })
                result.on('end', () => {
                    if (body.length > 1000){
                        var response = JSON.parse(body)
                        var postChildren = []
                        if (message.channel.nsfw == false){
                            var postsNumber = 0
                            for (var number = 0; number < response.data.children.length; number++){
                                postChildren.push(number)
                            }
                            for (var found = false; found == false; postsNumber ++){
                                if (postChildren.length > 0){
                                    var index1 = Math.floor(Math.random() * (postChildren.length))
                                    var index2 = postChildren[index1]
                                    if (response.data.children[index2].data.over_18 == true){
                                        postChildren.splice(index1, 1)
                                    } else {
                                        var index = response.data.children[index2].data
                                        var found = true
                                    }
                                } else {
                                    var found = true
                                }
                            }
                        } else {
                            var index = response.data.children[Math.floor(Math.random() * (response.data.children.length-1)) + 1].data
                        }
                        if (postChildren.length > 0 || message.channel.nsfw){
                            var title = index.title
                            var link = 'https://reddit.com' + index.permalink
                            var subRedditName = index.subreddit_name_prefixed
                            if (index.post_hint !== 'image') {
                                var text = index.selftext
                                if (title.length > 256) {
                                    title = (title.substring(0, 253) + "...")
                                } 
                                if (text.length > 2048) {
                                    text = (text.substring(0, 2045) + "...")
                                } 
                                const textembed = new Discord.MessageEmbed()
                                .setTitle(title)
                                .setColor('#ff0000')
                                .setDescription(text)
                                .setURL(`https://reddit.com/${subRedditName}`)
                                message.channel.send(textembed)
                            }
                            if (index.post_hint == 'image'){
                                var image = index.preview.images[0].source.url.replace('&amp;', '&')
                                if (title.length > 256) {
                                    title = (title.substring(0, 253) + "...")
                                } 
                                const imageembed = new Discord.MessageEmbed()
                                .setTitle(title)
                                .setImage(image)
                                .setColor('#ff0000')
                                .setURL(link)
                                message.channel.send(imageembed)  
                            }
                        } else {
                            message.channel.send('Could not find a meme that was not nsfw')
                        }
                    } else {
                        message.channel.send('Could not find subreddit!')
                    }
                }).on('error', function (e) {
                    console.log('Got an error: ', e)
                })
            })
    }
}

带有meme subreddit的Discord.js meme命令将图像返回403禁止

3 个答案: