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Add v2 functionality

shorten
benji7425 4 years ago
parent
commit
c792678452
  1. 88
      app/bot.js
  2. 4
      app/config.json
  3. 89
      app/models/feed-data.js
  4. 20
      app/models/guild-data.js

88
app/bot.js

@ -1,4 +1,12 @@
//external lib imports
const GetUrls = require("get-urls"); //for extracting urls from messages
//my imports
const DiscordUtil = require("discordjs-util");
//app component imports
const GuildData = require("./models/guild-data.js");
const FeedData = require("./models/feed-data.js");
module.exports = {
onReady(client, guildsData, config) {
@ -19,17 +27,83 @@ module.exports = {
}
},
onNonCommandMsg(message, guildData) {
return;
guildData.feeds.forEach(feedData => {
if (message.channel.name === feedData.channelName)
feedData.cachedLinks.push(...GetUrls(message.content)); //spread the urlSet returned by GetUrls into the cache array
});
}
};
function addFeed() {
//todo
function addFeed(client, guildsData, message, maxCacheSize) {
return new Promise((resolve, reject) => {
const feedUrl = [...GetUrls(message.content)][0];
const channel = message.mentions.channels.first();
if (!feedUrl || !channel)
reject("Please provide both a channel and an RSS feed URL. You can optionally @mention a role also.");
const role = message.mentions.roles.first();
const feedData = new FeedData({
url: feedUrl,
channelName: channel.name,
roleName: role ? role.name : null,
maxCacheSize: maxCacheSize
});
//ask the user if they're happy with the details they set up, save if yes, don't if no
DiscordUtil.ask(client, message.channel, message.member, "Are you happy with this?\n" + feedData.toString())
.then(responseMessage => {
//if they responded yes, save the feed and let them know, else tell them to start again
if (responseMessage.content.toLowerCase() === "yes") {
if (!guildsData[message.guild.id])
guildsData[message.guild.id] = new GuildData({ id: message.guild.id, feeds: [] });
guildsData[message.guild.id].feeds.push(feedData);
resolve("Your new feed has been saved!");
}
else
reject("Your feed has not been saved, please add it again with the correct details");
});
});
}
function removeFeed() {
//todo
function removeFeed(guildsData, message, botName) {
return new Promise((resolve, reject) => {
const parameters = message.content.split(" ");
if (parameters.length !== 3)
resolve(`Please use the command as such:\n\`\`\` ${botName} remove-feed feedid\`\`\``);
else {
const guildData = guildsData[message.guild.id];
const idx = guildData.feeds.findIndex(feed => feed.id === parameters[2]);
if (!Number.isInteger(idx))
reject("Can't find feed with id " + parameters[2]);
else {
guildData.feeds.splice(idx, 1);
reject("Feed removed!");
}
}
});
}
function viewFeeds(guildData) {
if (!guildData)
return Promise.reject("Guild not setup");
return Promise.resolve(guildData.feeds.map(f => f.toString()).join("\n"));
}
function viewFeeds() {
//todo
function checkFeedsInGuilds(guilds, guildsData) {
Object.keys(guildsData).forEach(key => guildsData[key].checkFeeds(guilds));
}
function parseLinksInGuilds(guilds, guildsData) {
const promises = [];
for (let guildId of guilds.keys()) {
const guildData = guildsData[guildId];
if (guildData)
promises.push(guildData.cachePastPostedLinks(guilds.get(guildId)));
}
return Promise.all(promises);
}

4
app/config.json

@ -4,7 +4,9 @@
"saveIntervalSec": 60,
"website": "https://benji7425.github.io",
"discordInvite": "https://discord.gg/SSkbwSJ",
"defaultDMResponse": "This bot does not have any handling for direct messages. To learn more or get help please visit %s, or join my Discord server here: %s" },
"defaultDMResponse": "This bot does not have any handling for direct messages. To learn more or get help please visit %s, or join my Discord server here: %s"
},
"feedCheckIntervalSec": 30,
"commands": {
"version": {
"command": "version",

89
app/models/feed-data.js

@ -0,0 +1,89 @@
//my imports
const DiscordUtil = require("discordjs-util");
//external lib imports
const Dns = require("dns"); //for host resolution checking
const Url = require("url"); //for url parsing
const FeedRead = require("feed-read"); //for extracing new links from RSS feeds
const GetUrls = require("get-urls"); //for extracting urls from messages
const ShortID = require("shortid"); //to provide ids for each feed, allowing guilds to remove them
module.exports = class FeedData {
constructor({ id, url, channelName, roleName, cachedLinks, maxCacheSize }) {
this.id = id || ShortID.generate();
this.url = url;
this.channelName = channelName;
this.roleName = roleName;
this.cachedLinks = cachedLinks || [];
this.maxCacheSize = maxCacheSize || 10;
this.cachedLinks.push = (...elements) => {
const unique = elements
.map(el => normaliseUrl(el)) //normalise all the urls
.filter(el => !this.cachedLinks.includes(el)); //filter out any already cached
Array.prototype.push.apply(this.cachedLinks, unique);
if (this.cachedLinks.length > this.maxCacheSize)
this.cachedLinks.splice(0, this.cachedLinks.length - this.maxCacheSize); //remove the # of elements above the max from the beginning
};
}
/**
* Returns a promise providing all the links posted in the last 100 messages
* @param {Discord.Guild} guild The guild this feed belongs to
* @returns {Promise<string[]>} Links posted in last 100 messages
*/
updatePastPostedLinks(guild) {
const channel = guild.channels.find(ch => ch.type === "text" && ch.name === this.channelName);
return new Promise((resolve, reject) => {
channel.fetchMessages({ limit: 100 })
.then(messages => {
new Map([...messages].reverse()).forEach(m => this.cachedLinks.push(...GetUrls(m.content))); //push all the links in each message into our links array
resolve(this);
})
.catch(reject);
});
}
check(guild) {
Dns.resolve(Url.parse(this.url).host || "", err => { //check we can resolve the host, so we can throw an appropriate error if it fails
if (err)
DiscordUtil.dateError("Connection Error: Can't resolve host", err); //log our error if we can't resolve the host
else
FeedRead(this.url, (err, articles) => { //check the feed
if (err)
DiscordUtil.dateError(err);
else {
let latest = articles[0].link; //extract the latest link
latest = normaliseUrl(latest); //standardise it a bit
//if we don't have it cached already, cache it and callback
if (!this.cachedLinks.includes(latest)) {
this.cachedLinks.push(latest);
const channel = guild.channels.find(ch => ch.type === "text" && ch.name.toLowerCase() === this.channelName.toLowerCase());
const role = this.roleName ? guild.roles.find(role => role.name.toLowerCase() === this.roleName.toLowerCase()) : null;
channel.send((role ? role + " " : "") + latest);
}
}
});
});
}
toString() {
const blacklist = ["cachedLinks", "maxCacheSize"];
return `\`\`\`JavaScript\n ${JSON.stringify(this, (k, v) => !blacklist.includes(k) ? v : undefined, "\t")} \`\`\``;
}
};
function normaliseUrl(url) {
url = url.replace("https://", "http://"); //cheaty way to get around http and https not matching
if (Url.parse(url).host.includes("youtu")) //detect youtu.be and youtube.com - yes I know it's hacky
url = url.split("&")[0]; //quick way to chop off stuff like &feature=youtube
url = url.replace(/(www.)?youtube.com\/watch\?v=/, "youtu.be/"); //turn full url into share url
return url;
}

20
app/models/guild-data.js

@ -1,7 +1,23 @@
const DiscordUtil = require("discordjs-util");
const FeedData = require("./feed-data.js");
const Util = require("discordjs-util");
module.exports = class GuildData {
constructor({ id }) {
constructor({ id, feeds }) {
this.id = id;
this.feeds = feeds.map(feed => new FeedData(feed));
}
cachePastPostedLinks(guild) {
const promises = [];
this.feeds.forEach(feed => {
promises.push(feed.updatePastPostedLinks(guild).catch(Util.dateError));
});
return Promise.all(promises);
}
checkFeeds(guilds) {
this.feeds.forEach(feed => feed.check(guilds.get(this.id)));
}
};
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