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Update code #133

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664943d
code revision
Sup3820 Mar 5, 2023
d605b4b
updated code
Sup3820 Mar 5, 2023
1d5ab41
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Sup3820 Mar 6, 2023
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152 changes: 53 additions & 99 deletions server/index.js
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Original file line number Diff line number Diff line change
@@ -1,108 +1,62 @@
import { toConsole } from "../src/utils/log.js";

toConsole("setup", "Setting up server...");

// Support require
import { createRequire } from "module";
const require = createRequire(import.meta.url);

// Attempt to read .env file
// If it doesn't exist, create an .env file with example.env information
toConsole("setup", "Looking for .env file...");
const fs = require("fs");
var firstRun = true;
function readEnvironmentFile(firstRun) {
let environmentFile = "";
try {
environmentFile = fs.readFileSync("config/.env", { encoding: "utf8", flag: "r" });
if (environmentFile == "") throw new Error(".env file empty!");
if (firstRun) toConsole("info", ".env file found! Attempting to read...");
} catch {
if (firstRun) toConsole("info", ".env file not found! Creating a new one...");
environmentFile = fs.readFileSync("config/example.env", { encoding: "utf8", flag: "r" });
fs.writeFileSync("config/.env", environmentFile);
}
return environmentFile;
}
readEnvironmentFile(firstRun);
firstRun = false;

// Import stuff
toConsole("setup", "Importing important stuff...");
const { parse, stringify } = require("envfile");
var open = require("open");
var express = require("express");
var path = require("path");
var cors = require("cors");
var app = express();
import { readFileSync, writeFileSync } from "fs";
import express from "express";
import { parse, stringify } from "envfile";
import { resolve } from "path";
import open from "open";

// Setup express with CORS on port 3250
toConsole("setup", "Starting server...");
app.use(cors());
app.options("*", cors());
app.listen(3250, "0.0.0.0", listening);

function listening() {
toConsole("setup", "Server started!");
const require = createRequire(import.meta.url);
const app = express();
const port = 3250;
const envFile = "config/.env";
const exampleEnvFile = "config/example.env";
const configFile = "config/config.json";

// Attempt to read .env file, if it doesn't exist, create an .env file with example.env information
let environmentFile = "";
try {
environmentFile = readFileSync(envFile, { encoding: "utf8", flag: "r" });
if (environmentFile === "") throw new Error(".env file empty!");
toConsole("info", ".env file found! Attempting to read...");
} catch {
toConsole("info", ".env file not found! Creating a new one...");
environmentFile = readFileSync(exampleEnvFile, { encoding: "utf8", flag: "r" });
writeFileSync(envFile, environmentFile);
}

app.use(express.static("public"));
app.use(express.urlencoded({ extended: false }));
app.use(express.json());

/*
Setup routes
*/
toConsole("setup", "Setting up routes...");

// index.html: https://localhost:3250/
app.get("/", getPage);
function getPage(request, response) {
response.sendFile(path.join(path.resolve() + "/server/index.html"));
}

// GET .env: https://localhost:3250/env
app.get("/env", getEnvironment);
function getEnvironment(request, response) {
let environmentFile = readEnvironmentFile(firstRun);
response.send(parse(environmentFile));
}

// POST .env: https://localhost:3250/env
app.post("/env", postEnvironment);
function postEnvironment(request, response) {
toConsole("info", "Settings received! Saving to .env...");
let environmentSettings = stringify(request.body);

fs.writeFile("config/.env", environmentSettings, "utf8", function (error) {
if (error) {
response.status(400).send({ error: "Error writing .env" });
} else {
response.send({ message: "Successfully saved .env" });
}
});
}

// GET config.json: https://localhost:3250/config
app.get("/config", getSettings);
function getSettings(request, response) {
response.sendFile(path.join(path.resolve() + "/config/config.json"));
}

// POST config.json: https://localhost:3250/config
app.post("/config", postSettings);
function postSettings(request, response) {
toConsole("info", "Settings received! Saving to config.json...");
let settings = JSON.stringify(request.body, undefined, 4);

fs.writeFile("config/config.json", settings, "utf8", function (error) {
if (error) {
response.status(400).send({ error: "Error writing config.json" });
} else {
response.send({ message: "Successfully saved config.json" });
}
});
}

toConsole("info", "Opening settings page on http://localhost:3250/...");
open("http://localhost:3250/");
// Setup routes
app.get("/", (req, res) => {
res.sendFile(resolve() + "/server/index.html");
});

app.get("/env", (req, res) => {
res.send(parse(environmentFile));
});

app.post("/env", (req, res) => {
const environmentSettings = stringify(req.body);
writeFileSync(envFile, environmentSettings, "utf8");
res.send({ message: "Successfully saved .env" });
});

app.get("/config", (req, res) => {
res.sendFile(resolve() + "/config/config.json");
});

app.post("/config", (req, res) => {
const settings = JSON.stringify(req.body, undefined, 4);
writeFileSync(configFile, settings, "utf8");
res.send({ message: "Successfully saved config.json" });
});

// Start server
app.listen(port, "0.0.0.0", () => {
toConsole("setup", `Server started on port ${port}`);
toConsole("info", `Opening settings page on http://localhost:${port}/...`);
open(`http://localhost:${port}/`);
});
85 changes: 42 additions & 43 deletions src/item.js
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Original file line number Diff line number Diff line change
Expand Up @@ -6,62 +6,61 @@ export default class Item {
this.url = url;
this.notificationSent = false;
this.shouldSendNotification = true;
this.html = undefined;
this.html = null;
this.info = {
title: undefined,
inventory: undefined,
image: undefined,
title: null,
inventory: null,
image: null,
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Please tell me whether this makes any difference or the reason this was changed.

};
}

/*
Fetches the item page and assigns the html to this.html
Returns a promise of true if successful, false otherwise
*/
async getPage(store, use_proxies, badProxies) {
const response = await fetchPage(this.url, store, use_proxies, badProxies);
switch (response.status) {
case "ok":
this.html = response.html;
return {
status: "ok",
};
/**
* Fetches the item page and assigns the html to this.html
* Returns a promise of an object with status and badProxies keys
*/
async getPage(store, useProxies, badProxies) {
const { status, html, error, badProxies: responseBadProxies } = await fetchPage(
this.url,
store,
useProxies,
badProxies
);

case "retry":
this.html = response.html;
return {
status: "retry",
bad_proxies: response.badProxies,
};

case "error":
this.html = response.html;
toFile(store, response.error, this);
return {
status: "error",
};
this.html = html;
if (status === "error") {
toFile(store, error, this);
}

return { status, badProxies: responseBadProxies };
}

/*
Extract item information based on the passed callback function and assigns it to this.info
Returns true if successful, false otherwise
*/
/**
* Extract item information based on the passed callback function and assigns it to this.info
* Returns a boolean indicating success or failure
*/
async extractInformation(store, storeFunction) {
const info = await storeFunction(this.html);
if (info.title && info.image && typeof info.inventory == "boolean") {
// Change notification status to false once item goes out of stock
if (this.notificationSent && !info.inventory) this.notificationSent = false;

this.shouldSendNotification = !this.info.inventory && info.inventory; // Check change in item stock
this.info = info;
return true;
} else if (info.error) {
toFile(store, info.error, this);
return false;
} else {
if (!info.title || !info.image || typeof info.inventory !== "boolean") {
toFile(store, "Unable to get information", Object.assign(this, info));
return false;
}

const { title, image, inventory } = info;
const { inventory: currentInventory } = this.info;

if (this.notificationSent && !inventory) {
this.notificationSent = false;
}

this.shouldSendNotification = !currentInventory && inventory;
this.info = { title, image, inventory };

if (info.error) {
toFile(store, info.error, this);
return false;
}

return true;
}
}