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app.js
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app.js
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import pg from 'pg';
const { Client } = pg;
import express from "express";
import bodyParser from "body-parser";
import isBot from "isbot";
import querystring from "querystring";
import dotenv from "dotenv";
import bolt from "@slack/bolt";
const { App, LogLevel } = bolt;
import responseTime from "response-time";
import metrics from './metrics.js';
import { LRUCache } from 'lru-cache';
import { writeFile } from 'fs/promises';
import { createReadStream } from 'fs';
import path from 'path';
import { fileURLToPath } from 'url';
const __dirname = path.dirname(fileURLToPath(import.meta.url));
dotenv.config();
const cache_ttl_milliseconds = 60 * 1000 // 1 minute
const cache = new LRUCache({ max: parseInt(process.env.CACHE_SIZE), ttl:cache_ttl_milliseconds });
const SlackApp = new App({
token: process.env.SLACK_BOT_TOKEN,
appToken: process.env.SLACK_APP_TOKEN,
socketMode: true,
logLevel: LogLevel.DEBUG,
});
const connectionString = process.env.DATABASE_URL;
async function connectToDatabase() {
let attempt = 0;
const maxRetries = 5;
while (attempt < maxRetries) {
try {
const client = new Client({
connectionString,
ssl: {
rejectUnauthorized: false
}
});
await client.connect();
console.log("Connected to the database successfully");
return client;
} catch (error) {
console.error(`Database connection attempt ${attempt + 1} failed:`, error);
attempt++;
const delay = Math.pow(2, attempt) * 1000;
console.log(`Retrying in ${delay / 1000} seconds...`);
await new Promise(resolve => setTimeout(resolve, delay));
}
}
throw new Error("Failed to connect to the database after multiple attempts.");
}
let client;
(async () => {
try {
client = await connectToDatabase();
} catch (error) {
console.error("Could not establish a database connection:", error);
process.exit(1);
}
})();
const app = express();
app.use(forceHttps);
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
const port = process.env.PORT || 3000;
app.listen(port, () => {
console.log("Hack.club is up and running on port", port);
});
app.use(responseTime(function (req, res, time) {
const reqTrace = req.method + "-" + res.statusCode;
const timingStatKey = `http.response.${reqTrace}`;
const codeStatKey = `http.response.${reqTrace}`
metrics.timing(timingStatKey, time)
metrics.increment(codeStatKey, 1)
}))
SlackApp.command("/hack.af", async ({ command, ack, respond }) => {
await ack();
const args = command.text.split(' ');
const originalCommand = `${command.command} ${command.text}`;
const isStaff = await isStaffMember(command.user_id);
async function changeSlug(slug, newDestination) {
newDestination = newDestination.replace(/^[\*_`]+|[\*_`]+$/g, '');
let existingRes;
try {
existingRes = await client.query(
`SELECT * FROM "Links" WHERE slug = $1`,
[slug]
);
} catch (error) {
console.error("Database error during SELECT:", error);
throw new Error("Error checking for existing slug");
}
const isUpdate = existingRes && existingRes.rowCount > 0;
if (isUpdate) {
const lastDestination = decodeURIComponent(existingRes.rows[0].destination);
try {
await client.query(
`UPDATE "Links" SET destination = $1 WHERE slug = $2`,
[newDestination, slug]
);
// Invalidate the cache entry since we've updated the slug such that it reloads next request
cache.delete(slug);
await insertSlugHistory(slug, newDestination, 'Updated', '', command.user_id);
return {
text: `Updated! Now hack.club/${slug} is switched from ${decodeURIComponent(lastDestination)} to ${newDestination}.`,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: `Updated! Now hack.club/${slug} is switched from ${decodeURIComponent(lastDestination)} to ${newDestination}.`,
},
},
{
type: 'context',
elements: [
{
type: 'mrkdwn',
text: `Request made by <@${command.user_id}>`,
},
],
},
],
};
} catch (error) {
console.error("Database error during UPDATE:", error);
throw new Error("Error updating the slug");
}
} else {
try {
await client.query(
`INSERT INTO "Links" ("Record Id", slug, destination)
VALUES ($1, $2, $3)`,
[Math.random().toString(36).substring(2, 15), slug, newDestination]
);
await insertSlugHistory(slug, newDestination, 'Created', '', command.user_id);
return {
text: `Created! Now hack.club/${slug} goes to ${newDestination}.`,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: `Created! Now hack.club/${slug} goes to ${newDestination}.`,
},
},
{
type: 'context',
elements: [
{
type: 'mrkdwn',
text: `Request made by <@${command.user_id}>`,
},
],
},
],
};
} catch (error) {
console.error("Database error during INSERT:", error);
throw new Error("Error creating the slug");
}
}
}
async function searchSlug(searchTerm) {
if (!searchTerm) {
return {
text: 'No slug provided. Please provide a slug to search for.',
response_type: 'ephemeral'
};
}
const isURL = searchTerm.startsWith('http://') || searchTerm.startsWith('https://');
let searchQuery = "";
let queryParams = [];
const similarityThreshold = 0.3;
if (isURL) {
searchQuery = `
SELECT * FROM "Links"
WHERE destination ILIKE $1
AND similarity(destination, $2) > $3
ORDER BY similarity(destination, $2) DESC
LIMIT 50;
`;
queryParams = [`%${encodeURIComponent(searchTerm)}%`, encodeURIComponent(searchTerm), similarityThreshold];
} else {
searchQuery = `
SELECT * FROM "Links"
WHERE (slug ILIKE $1 OR destination ILIKE $1)
AND (similarity(slug, $2) > $3 OR similarity(destination, $2) > $3)
ORDER BY GREATEST(similarity(slug, $2), similarity(destination, $2)) DESC
LIMIT 50;
`;
queryParams = [`%${searchTerm}%`, searchTerm, similarityThreshold];
}
try {
let res = await client.query(searchQuery, queryParams);
let records = res.rows;
if (records.length > 0) {
const blocks = records.map(record => {
return {
type: 'section',
fields: [
{
type: 'mrkdwn',
text: `*Slug:* ${record.slug}`
},
{
type: 'mrkdwn',
text: `*Destination:* <${decodeURIComponent(record.destination)}|${decodeURIComponent(record.destination)}>`
}
]
};
});
blocks.push({
type: 'context',
elements: [
{
type: 'mrkdwn',
text: `Request made by <@${command.user_id}>`
}
]
});
return {
blocks
};
} else {
if (isURL) searchTerm = decodeURIComponent(searchTerm);
return {
text: `No matches found for ${searchTerm}.`,
response_type: 'ephemeral'
};
}
} catch (error) {
console.error('SQL error:', error);
return {
text: 'No slug found or there was an error with the query.',
response_type: 'ephemeral'
};
}
}
async function shortenUrl(url) {
const originalUrl = encodeURIComponent(url);
let slug = Math.random().toString(36).substring(7);
const recordId = Math.random().toString(36).substring(2, 15);
const qrUrl = `https://api.qrserver.com/v1/create-qr-code/?data=https://hack.club/${slug}`;
await client.query(`
INSERT INTO "Links" ("Record Id", slug, destination, "Log", "Clicks", "QR URL", "Visitor IPs", "Notes")
VALUES ($1, $2, $3, $4, $5, $6, $7, $8)
`, [recordId, slug, originalUrl, [], 0, qrUrl, [], '']);
let msg = `Your short URL: https://hack.club/${slug} -> ${url}`;
let blockMsg = `Your short URL: *<https://hack.club/${slug}|hack.club/${slug}>* -> ${url}`;
if (isStaff) {
msg += '\nTo change the destination URL, use `/hack.af set [slug] [new destination URL]`.';
blockMsg += '\nTo change the destination URL, use `/hack.af set [slug] [new destination URL]`.';
}
// Invalidate the cache entry that has been updated
cache.delete(slug)
return {
text: msg,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: blockMsg,
}
},
{
type: 'image',
title: {
type: 'plain_text',
text: 'QR Code'
},
image_url: qrUrl,
alt_text: 'QR Code for your URL'
},
{
type: 'context',
elements: [
{
type: 'mrkdwn',
text: `Request made by <@${command.user_id}>`
}
]
}
]
};
}
async function deleteSlug(slug) {
cache.delete(slug)
await client.query(`
DELETE FROM "Links"
WHERE slug = $1
`, [slug]);
return {
text: `URL for slug ${slug} has been successfully deleted.`,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: `URL for slug ${slug} has been successfully deleted.`
}
},
{
type: 'context',
elements: [
{
type: 'mrkdwn',
text: `Request made by <@${command.user_id}>`
}
]
}
]
};
}
async function showHelp(commandName) {
return {
text: `Hack.af help`,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: commandName
? generateHelpText(commandName)
: Object.keys(commands).map((key) => generateHelpText(key)).join("\n\n")
}
},
{
type: 'context',
elements: [
{
type: 'mrkdwn',
text: `Request made by <@${command.user_id}>`
}
]
}
]
}
}
function generateHelpText(commandName) {
const { usage, helpEntry, parameters, staffRequired } = commands[commandName];
let helpText = `\`${usage}\``;
if (staffRequired) {
helpText += `: (*Admin only*)`;
}
helpText += ` ${helpEntry}`;
if (parameters) {
helpText += `\n*Parameters*: ${parameters}`;
}
return helpText;
}
const commands = {
set: {
run: changeSlug,
arguments: [2],
staffRequired: true,
helpEntry: "Shorten a URL to a custom slug.",
usage: "/hack.af set [slug-name] [destination-url]",
parameters: "[slug-name]: The custom slug you want to use.\n[destination-url]: The URL you want to shorten."
},
search: {
run: searchSlug,
arguments: [1],
staffRequired: false,
helpEntry: "Search for a particular slug in the database.",
usage: "/hack.af search [slug-name]",
parameters: "[slug-name]: The slug you want to search for."
},
shorten: {
run: shortenUrl,
arguments: [1],
staffRequired: false,
helpEntry: "Shorten any URL to a random hack.club link.",
usage: "/hack.af shorten [url]",
parameters: "[url]: The URL you want to shorten."
},
'delete': {
run: deleteSlug,
arguments: [1],
staffRequired: true,
helpEntry: "Delete a slug from the database.",
usage: "/hack.af delete [slug-name]",
parameters: "[slug-name]: The slug you want to delete."
},
help: {
run: showHelp,
arguments: [0, 1],
staffRequired: false,
helpEntry: "Show help documentation.",
usage: "/hack.af help"
},
metrics: {
run: getMetrics,
arguments: [1],
staffRequired: true,
helpEntry: "Retrieve and display metrics for a specific slug.",
usage: "/hack.af metrics [slug-name]",
parameters: "[slug-name]: The slug you want to retrieve metrics for."
},
history: {
run: getHistory,
arguments: [1],
staffRequired: true,
helpEntry: "Retrieve history of slugs over time.",
usage: "/hack.af history [slug-name]",
parameters: "[slug-name]: The slug you want to retrieve history of."
},
note: {
run: updateNotes,
arguments: [-1],
staffRequired: true,
helpEntry: "Add or update notes to a slug.",
usage: "/hack.af note [slug-name] [note-content]",
parameters: "[slug-name]: The slug you want to add/update a note for.\n[note-content]: The content of the note."
},
audit: {
run: auditChanges,
arguments: [2],
staffRequired: true,
helpEntry: "List all changes to slugs within a given time period.",
usage: "/hack.af audit [YYYY-MM-DD] [YYYY-MM-DD]",
parameters: "[YYYY-MM-DD]: The start date for the audit search.\n[YYYY-MM-DD]: The end date for the audit search."
},
geolocation: {
run: getGeolocation,
arguments: [1],
staffRequired: true,
helpEntry: "Retrieve IP addresses for a specific slug.",
usage: "/hack.af geolocation [slug-name]",
parameters: "[slug-name]: The slug you want to retrieve IP addresses for."
}
}
const commandEntry = commands[args[0]] || commands.help
if (commandEntry.staffRequired && !isStaff)
return await respond({
text: `Sorry, only staff can use this command. \`${originalCommand}\``,
response_type: 'ephemeral'
});
const acceptsVariableArguments = commandEntry.arguments.includes(-1);
if (!acceptsVariableArguments && !commandEntry.arguments.includes(args.length - 1))
return await respond({
text: `The command accepts ${commandEntry.arguments.join(', ')} arguments, but you supplied ${args.length - 1}. Please check your formatting. \`${originalCommand}\``,
response_type: 'ephemeral'
});
try {
metrics.increment(`botcommands.${args[0]}.attempt`, 1);
let result;
console.log("Command entry:", commandEntry);
if (commandEntry.run === getGeolocation) {
result = await getGeolocation(command);
} else {
result = acceptsVariableArguments ?
await commandEntry.run(...args.slice(1)) :
await commandEntry.run(...args.slice(1, commandEntry.arguments[0] + 1));
result.blocks.push({
type: 'context',
elements: [{
type: 'mrkdwn',
text: `\`${originalCommand}\``
}]
});
}
await respondEphemeral(respond, result);
metrics.increment(`botcommands.${args[0]}.success`, 1);
} catch (error) {
metrics.increment(`botcommands.${args[0]}.error`, 1);
await respond({
text: `There was an error processing your request: ${error.message}. \`${originalCommand}\``,
response_type: 'ephemeral'
});
console.error(error);
}
})
app.get("/ping", (_req, res) => {
res.send("pong");
});
app.get("/vip/:id", (req, res) => {
lookup("vip").then(
(result) => {
res.redirect(302, result + req.params.id);
},
(error) => {
res.status(error);
}
);
});
app.get("/glitch", (req, res) => {
res.set('Content-Type', 'text/html');
res.send(Buffer.from(`<meta http-equiv="refresh" content="0; url='https://glitch.com/edit/#!/remix/intro-workshop-starter/84e5e504-d255-4505-b104-fa2955ef8311'" />`));
});
app.get("/gib/:org", (req, res) => {
res.redirect(302, "https://hcb.hackclub.com/donations/start/" + req.params.org);
});
app.get("/gh/:repo", (req, res) => {
res.redirect(302, "https://github.com/hackclub/" + req.params.repo);
});
app.get("/*", (req, res) => {
let slug = decodeURIComponent(req.path.substring(1));
const query = req.query;
if (slug.endsWith("/")) {
slug = slug.substring(0, slug.length - 1);
}
if (slug === "") slug = "/";
logAccess(
getClientIp(req),
req.headers["user-agent"],
slug,
req.protocol + "://" + req.get("host") + req.originalUrl
);
lookup(decodeURI(slug)).then(
(destination) => {
var fullUrl = decodeURIComponent(destination.destination);
if (!/^https?:\/\//i.test(fullUrl)) {
fullUrl = 'http://' + fullUrl;
}
var resultQuery = combineQueries(
querystring.parse(new URL(fullUrl).search),
query
);
const parsedDestination = new URL(fullUrl);
const finalURL = parsedDestination.origin + parsedDestination.pathname + resultQuery + parsedDestination.hash;
// console.log("Destination: ", destination);
// console.log("Full URL: ", fullUrl);
// console.log("Parsed Destination: ", parsedDestination.href);
// console.log("Result Query: ", resultQuery);
// console.log("Final URL: ", finalURL);
res.redirect(307, finalURL);
},
(_err) => {
res.redirect(302, "https://hackclub.com/404");
}
).catch((_err) => {
res.redirect(302, "https://goo.gl/" + slug);
});
});
function combineQueries(q1, q2) {
for (let key in q1) {
if (key[0] === "?") {
q1[key.substring(1)] = q1[key];
delete q1[key];
}
}
for (let key in q2) {
if (key[0] === "?") {
q2[key.substring(1)] = q2[key];
delete q2[key];
}
}
const combinedQuery = { ...q1, ...q2 };
let combinedQueryString = querystring.stringify(combinedQuery);
if (combinedQueryString) {
combinedQueryString = "?" + combinedQueryString;
}
return combinedQueryString;
}
const lookup = async (slug) => {
try {
if (cache.has(slug)) {
metrics.increment("lookup.cache.hit", 1);
//console.log(cache.get(slug));
return cache.get(slug);
} else {
metrics.increment("lookup.cache.miss", 1);
console.log("Cache miss");
const res = await client.query('SELECT * FROM "Links" WHERE slug=$1', [slug]);
if (res.rows.length > 0) {
const record = res.rows[0];
cache.set(slug, record);
return cache.get(slug);
} else {
console.log(`No match found for slug: ${slug}`);
throw new Error('Slug not found');
}
}
} catch (error) {
console.error(error);
throw error;
}
};
async function logAccess(ip, ua, slug, url) {
if (process.env.LOGGING === "off") return;
const botUA = ["apex/ping/v1.0"];
if (process.env.BOT_LOGGING === "off" && (isBot(ua) || botUA.includes(ua))) return;
let linkData;
try {
linkData = await lookup(slug);
if (linkData === null) {
console.log("Slug not found, skipping logging");
return;
}
} catch (e) {
console.log(e);
}
const recordId = Math.random().toString(36).substring(2, 15);
const timestamp = new Date().toISOString();
const descriptiveTimestamp = new Date();
const data = {
record_id: recordId,
timestamp: timestamp,
descriptive_timestamp: descriptiveTimestamp,
client_ip: ip,
slug: slug,
url: url,
user_agent: ua,
bot: isBot(ua) || botUA.includes(ua),
counter: 1
};
client.query(
`INSERT INTO "Log" ("Record Id", "Timestamp", "Descriptive Timestamp", "Client IP", "Slug", "URL", "User Agent", "Counter") VALUES ($1, $2, $3, $4, $5, $6, $7, $8)`,
[data.record_id, data.timestamp, data.descriptive_timestamp, data.client_ip, data.slug, data.url, data.user_agent, data.counter],
(err, _res) => {
if (err) {
console.error('Error inserting log:', err);
} else {
client.query(
`UPDATE "Links" SET "Clicks" = "Clicks" + 1, "Log" = array_append("Log", $1), "Visitor IPs" = array_append("Visitor IPs", $2) WHERE "slug" = $3`,
[data.record_id, data.client_ip, data.slug],
(updateErr, updateRes) => {
if (updateErr) {
console.error('Error updating Links:', updateErr);
}
}
);
}
}
);
}
async function getMetrics(slug) {
try {
console.log(`Getting metrics for slug: ${slug}`);
const logRes = await client.query('SELECT * FROM "Log" WHERE "Slug"=$1', [slug]);
console.log('Log Query result:', logRes);
const linkRes = await client.query('SELECT "Clicks" FROM "Links" WHERE "slug"=$1', [slug]);
console.log('Link Query result:', linkRes);
if (logRes.rows.length > 0 || (linkRes.rows.length > 0 && linkRes.rows[0].Clicks > 0)) {
const logData = logRes.rows.length > 0 ? logRes.rows[0] : null;
const clicks = linkRes.rows.length > 0 ? linkRes.rows[0].Clicks : 0;
console.log('Raw log data:', logData);
console.log('Clicks:', clicks);
const formattedLogData = formatLogData(logData, clicks);
return {
text: `Metrics for slug ${slug}:`,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: formattedLogData
}
}
]
};
} else {
return {
text: `No metrics found for slug ${slug}.`,
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: `No metrics found for slug ${slug}.`
}
}
]
};
}
} catch (error) {
console.error('Error in getMetrics:', error);
return {
text: 'There was an error retrieving metrics.',
blocks: [
{
type: 'section',
text: {
type: 'mrkdwn',
text: 'There was an error retrieving metrics.'
}
}
]
};
}
}
async function getHistory(slug) {
const history = await getSlugHistory(slug);
const note = await getNotes(slug)
return formatHistory(history, note);
}
async function updateNotes(...args) {
console.log(args);
const slug = args[0];
const Note = args.slice(1).join(' ');
try {
const res = await client.query(`
UPDATE "Links" SET "Notes" = $1 WHERE "slug" = $2 RETURNING *
`, [Note, slug]);
if (res.rowCount > 0) {
console.log("Note updated successfully");
return {
text: `Note updated successfully \n New Note for ${slug} is ${Note}`,
response_type: 'ephemeral'
}
} else {
console.log("Slug not found");
return {
text: `Slug not found`,
response_type: 'ephemeral'
}
}
} catch (error) {
console.error("Database error:", error);
return {
text: `An error occurred while updating the note`,
response_type: 'ephemeral'
}
}
}
async function getNotes(slug) {
try {
const res = await client.query(`
SELECT "Notes" FROM "Links" WHERE slug = $1 LIMIT 1
`, [slug]);
if (res.rows.length > 0) {
return res.rows[0]["Notes"];
} else {
console.log(`No notes found for slug=${slug}`);
return '';
}
} catch (error) {
console.error("Database error in getNotes:", error);
throw error;
}
}
async function respondEphemeral(response, message) {
return await response({
...message,
response_type: 'ephemeral'
});
}
async function insertSlugHistory(slug, newDestination, actionType, note, changedBy) {
console.log("Inside insertSlugHistory with values:", slug, newDestination, actionType, note, changedBy);
try {
const result = await client.query(`
SELECT MAX(version) as latest_version FROM "slughistory" WHERE slug = $1;
`, [slug]);
const latestVersion = result.rows[0].latest_version || 0;
const nextVersion = latestVersion + 1;
await client.query(`
INSERT INTO "slughistory" (slug, new_url, action_type, note, version, changed_by, changed_at)
VALUES ($1, $2, $3, $4, $5, $6, CURRENT_TIMESTAMP);
`, [slug, newDestination, actionType, note, nextVersion, changedBy]);
} catch (error) {
console.error("Database error in insertSlugHistory:", error);
}
}
async function getSlugHistory(slug) {
console.log("Fetching slug history for slug:", slug);
try {
let res = await client.query(`
SELECT * FROM "slughistory" WHERE slug = $1 ORDER BY version DESC;
`, [slug]);
console.log("Query result rows:", res.rows);
if (res.rows.length === 0) {
console.log("No records found for slug in 'slughistory':", slug, ". Fetching from 'Log'...");
let logResult = await client.query(`
SELECT * FROM "Log" WHERE "Slug" = $1 LIMIT 1;
`, [slug]);
if (logResult.rows.length === 0) {
logResult = await client.query(`
SELECT * FROM "Log" WHERE "Slug" = $1 LIMIT 1;
`, [`{${slug}}`]);
}
if (logResult.rows.length > 0) {
const logData = logResult.rows[0];
const cleanSlug = logData["Slug"].replace(/[{}]/g, '');
const newDestination = logData["URL"];
const date = logData["Descriptive Timestamp"]
console.log(`Found slug=${slug} in "Log". Inserting into "slughistory"...`);
await client.query(`
INSERT INTO "slughistory" (slug, new_url, action_type, note, version, changed_by, changed_at)
VALUES ($1, $2, $3, $4, $5, $6, $7);
`, [cleanSlug, newDestination, 'Created', '', 1, '', date]);
res = await client.query(`
SELECT * FROM "slughistory" WHERE slug = $1 ORDER BY version DESC;
`, [slug]);
} else {
console.log("No records found for slug in 'Log':", slug);
return {
text: `No records found for slug in 'Log': ${slug}`,
response_type: 'ephemeral'
}
}
}
return res.rows;
} catch (error) {
console.error("SQL Error: ", error);
return {
text: 'No slug found or Error fetching slug history.',
response_type: 'ephemeral'
}
}
}
function formatHistory(history, note) {
console.log("history: " + history);
const blocks = history.map(record => {
return {
type: 'section',
fields: [
{
type: 'mrkdwn',
text: `*Version:* ${record.version}`
},
{
type: 'mrkdwn',
text: `*New URL:* ${decodeURIComponent(record.new_url)}`
},
{
type: 'mrkdwn',
text: `*Changed By:* ${record.changed_by}`
},
{
type: 'mrkdwn',
text: `*Changed At:* ${new Date(record.changed_at).toLocaleString()}`
},
{
type: 'mrkdwn',
text: `*Action Type:* ${record.action_type}`
},
{
type: 'mrkdwn',
text: `*Note:* ${note}`
}
]
};
});
return {
blocks
};
}
function formatLogData(logData, clicks) {
return `
*Timestamp:* ${logData?.["Timestamp"] || 'N/A'}
*Slug:* ${logData?.["Slug"] || 'N/A'}
*URL:* ${logData?.["URL"] || 'N/A'}
*Clicks:* ${clicks || 'N/A'}
`;
}
async function auditChanges(date1, date2, limit = 50) {
if (!date1 || !date2) {
console.error(`recordChanges: One or both dates are undefined - date1: ${date1}, date2: ${date2}`);
return {
text: 'There was an error with the dates. Please use the format YYYY-MM-DD for both dates.',
response_type: 'ephemeral'
};
}
const startDate = new Date(date1).toISOString();
const endDate = new Date(date2);
endDate.setUTCHours(23, 59, 59, 999);
const endDateString = endDate.toISOString();
try {
const res = await client.query(`
SELECT * FROM "slughistory"
WHERE changed_at >= $1 AND changed_at <= $2
ORDER BY changed_at DESC
LIMIT $3;
`, [startDate, endDateString, limit]);
if (res.rows.length > 0) {
const blocks = res.rows.map(record => {
const slugText = /^https?:\/\//.test(record.slug)
? record.slug
: `hack.club/${record.slug}`;