84 lines
2.7 KiB
TypeScript
84 lines
2.7 KiB
TypeScript
import {
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ActionRowBuilder,
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ButtonBuilder,
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ButtonStyle,
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Colors,
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EmbedBuilder,
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type Message,
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ThreadChannel,
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} from "discord.js";
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function findFirstImage(message: Message): string | undefined {
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const result = message.attachments.find((attach) => {
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return attach.contentType?.startsWith("image/");
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});
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if (result == undefined) {
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return undefined;
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} else {
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return result.url;
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}
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}
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export async function expandDiscordLink(message: Message): Promise<void> {
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const re =
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/(https?:\/\/)?(?:canary\.|ptb\.)?discord(?:app)?\.com\/channels\/(?<server_id>\d+)\/(?<channel_id>\d+)\/(?<message_id>\d+)/g;
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let execResult = re.exec(message.content);
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while (!(execResult == null || execResult.groups == undefined)) {
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if (execResult.groups.server_id != message.guildId) {
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continue; // do not let the bot leak messages from one server to another
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}
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const channel = await message.guild?.channels.fetch(
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execResult.groups.channel_id
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);
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if (channel == undefined || channel == null || !channel.isTextBased()) {
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continue;
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}
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if (channel instanceof ThreadChannel) {
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if (
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!channel.parent?.members?.some((user) => user.id == message.author.id)
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) {
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continue; // do not reveal a message to a user who can't see it
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}
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} else {
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if (!channel.members?.some((user) => user.id == message.author.id)) {
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continue; // do not reveal a message to a user who can't see it
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}
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}
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try {
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const messageToShow = await channel.messages.fetch(
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execResult.groups.message_id
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);
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const builder = new EmbedBuilder()
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.setAuthor({
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name: `${messageToShow.author.username}#${messageToShow.author.discriminator}`,
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iconURL: messageToShow.author.displayAvatarURL(),
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})
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.setColor(Colors.Aqua);
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if (messageToShow.content) {
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builder.setDescription(messageToShow.content);
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}
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if (messageToShow.attachments.size > 0) {
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let attachmentsString = "";
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messageToShow.attachments.forEach((value) => {
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attachmentsString += `[${value.name}](${value.url}) `;
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});
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builder.addFields({ name: "Attachments", value: attachmentsString });
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const firstImage = findFirstImage(messageToShow);
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if (firstImage != undefined) {
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builder.setImage(firstImage);
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}
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}
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const row = new ActionRowBuilder().addComponents(
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new ButtonBuilder()
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.setLabel("Jump to original message")
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.setStyle(ButtonStyle.Link)
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.setURL(messageToShow.url)
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);
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message.channel.send({ embeds: [builder], components: [row] });
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} catch (e) {
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console.error(e);
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continue;
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}
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execResult = re.exec(message.content);
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}
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}
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