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Code Issues Projects Releases Wiki Activity

Master deployment (#67)

Browse Source 
* BETTERZON-58: Basic Functionality with scrapy (#33)

* BETTERZON-73: Adding API endpoint that returns the lowest non-amazon prices for a given list of product ids (#32)

* BETTERZON-75: User registration API endpoint (#34)

* BETTERZON-75: Adding backend functions to enable user registration

* BETTERZON-75: Adding regex to check email and username

* BETTERZON-83: FE unit testing (#35)

* BETTERZON-83: Making pre-generated unit tests work

* BETTERZON-83: Writing unit tests for angular to improve code coverage

* BETTERZON-79: Adding API endpoint for logging in (#36)

* BETTERZON-84: Adding service method to check if a session is valid (#37)

* BETTERZON-77: Changing error behavior as the previous behavior cloud have opened up security vulnerabilities (#38)

* BETTERZON-76: Adding method descriptions for backend service methods (#40)

* Adding Codacy code quality badge to README

* BETTERZON-89: Refactoring / Reformatting and adding unit tests (#41)

* BETTERZON-90: Adding API endpoint for creating price alarms (#42)

* BETTERZON-91: Adding API endpoint to GET all price alarms for the currently logged in user (#43)

* BETTERZON-92: Adding API endpoint to edit (update) price alarms (#44)

* BETTERZON-99: Adding some basic cucumber tests (#45)

* BETTERZON-100: Switching to cookies for session management (#46)

* BETTERZON-100: Switching session handling to cookies

* BETTERZON-100: Some code reformatting

* BETTERZON-100: Some more code reformatting

* BETTERZON-93: Adding API endpoint to get managed shops (#47)

* BETTERZON-94: Adding API endpoint to deactivate price listings as a vendor manager (#48)

* BETTERZON-97: Adding API endpoint to get all products listed by a specific vendor (#50)

* BETTERZON-98: Adding API endpoint for adding price entries as a registered vendor manager (#51)

* BETTERZON-95: Adding API endpoint for getting, inserting and updating contact persons (#52)

* BETTERZON-58 (#53)

* BETTERZON-58: Basic Functionality with scrapy

* Added independent crawler function, yielding price

* moved logic to amazon.py

* .

* moved scrapy files to unused folder

* Added basic amazon crawler using beautifulsoup4

* Connected Api to Crawler

* Fixed string concatenation for sql statement in getProductLinksForProduct

* BETTERZON-58: Fixing SQL insert

* BETTERZON-58: Adding access key verification

* BETTERZON-58: Fixing API endpoint of the crawler
- The list of products in the API request was treated like a string and henceforth, only the first product has been crawled

* Added another selector for price on amazon (does not work for books)

Co-authored-by: root <root@DESKTOP-ARBPL82.localdomain>
Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Co-authored-by: Patrick <50352812+Mueller-Patrick@users.noreply.github.com>

* BETTERZON-96: Adding API endpoint for delisting a whole vendor (#54)

* BETTERZON-101: Adding service functions for pricealarms api (#55)

- Not properly tested though as login functionality is required to test but not yet implemented

* BETTERZON-110: Refactoring, reformatting and commenting api service (#56)

* BETTERZON-107: Refactoring code with Proxy as design pattern (#49)

* BETTERZON-78 (#39)

* BETTERZON-31, dependencies.

* BETTERZON-31: Fixing dependencies

* BETTERZON-31,
BETTERZON-50

info popover and footer had been changed.

* BETTERZON-74

simple top-bar has been created.

* WIP: creating footer using grid.

* BETTERZON-78 adding bottom bar and top bar

* Adding cookieconsent as dependency again since it was removed by a merge

* Adding cookieconsent as dependency again since it was removed by a merge

* Apply suggestions from code review

Switching from single to double quotes

* BETTERZON-78 - grid added, structured as in Adobe XD mockup

Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Co-authored-by: Patrick <50352812+Mueller-Patrick@users.noreply.github.com>

* BETTERZON-109 (#57)

* BETTERZON-31, dependencies.

* BETTERZON-31: Fixing dependencies

* BETTERZON-31,
BETTERZON-50

info popover and footer had been changed.

* BETTERZON-74

simple top-bar has been created.

* WIP: creating footer using grid.

* BETTERZON-78 adding bottom bar and top bar

* Adding cookieconsent as dependency again since it was removed by a merge

* Adding cookieconsent as dependency again since it was removed by a merge

* Apply suggestions from code review

Switching from single to double quotes

* BETTERZON-78 - grid added, structured as in Adobe XD mockup

* wip: component rewritten, simple grid applied.

* wip: new component created and added to the app.module.ts. Added a minimal grid layout.

* wip: all components were wrapped now. Grid structure has been applied to the main wrapper-class "container".

* wip: component created and added to the app.module.ts

Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Co-authored-by: Patrick <50352812+Mueller-Patrick@users.noreply.github.com>

* BETTERZON-108 (#58)

* BETTERZON-31, dependencies.

* BETTERZON-31: Fixing dependencies

* BETTERZON-31,
BETTERZON-50

info popover and footer had been changed.

* BETTERZON-74

simple top-bar has been created.

* WIP: creating footer using grid.

* BETTERZON-78 adding bottom bar and top bar

* Adding cookieconsent as dependency again since it was removed by a merge

* Adding cookieconsent as dependency again since it was removed by a merge

* Apply suggestions from code review

Switching from single to double quotes

* BETTERZON-78 - grid added, structured as in Adobe XD mockup

* wip: component rewritten, simple grid applied.

* wip: new component created and added to the app.module.ts. Added a minimal grid layout.

* wip: all components were wrapped now. Grid structure has been applied to the main wrapper-class "container".

Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Co-authored-by: Patrick <50352812+Mueller-Patrick@users.noreply.github.com>

* BETTERZON-106 (#59)

* BETTERZON-31, dependencies.

* BETTERZON-31: Fixing dependencies

* BETTERZON-31,
BETTERZON-50

info popover and footer had been changed.

* BETTERZON-74

simple top-bar has been created.

* WIP: creating footer using grid.

* BETTERZON-78 adding bottom bar and top bar

* Adding cookieconsent as dependency again since it was removed by a merge

* Adding cookieconsent as dependency again since it was removed by a merge

* Apply suggestions from code review

Switching from single to double quotes

* BETTERZON-78 - grid added, structured as in Adobe XD mockup

* wip: component rewritten, simple grid applied.

* wip: new component created and added to the app.module.ts. Added a minimal grid layout.

Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Co-authored-by: Patrick <50352812+Mueller-Patrick@users.noreply.github.com>

* BETTEZON-102 (#60)

* BETTERZON-31, dependencies.

* BETTERZON-31: Fixing dependencies

* BETTERZON-31,
BETTERZON-50

info popover and footer had been changed.

* BETTERZON-74

simple top-bar has been created.

* WIP: creating footer using grid.

* BETTERZON-78 adding bottom bar and top bar

* Adding cookieconsent as dependency again since it was removed by a merge

* Adding cookieconsent as dependency again since it was removed by a merge

* Apply suggestions from code review

Switching from single to double quotes

* BETTERZON-78 - grid added, structured as in Adobe XD mockup

* wip: component rewritten, simple grid applied.

Co-authored-by: Patrick Müller <patrick@mueller-patrick.tech>
Co-authored-by: Patrick <50352812+Mueller-Patrick@users.noreply.github.com>

* BETTERZON-113, BETTERZON-114, BETTERZON-115: Adding API endpoint for favorite shops (#61)

* BETTERZON-116: Adding API endpoint for searching a new product (#62)

* BETTERZON-117: Adding API endpoint for getting the latest crawling status (#63)

* BETTERZON-111: Adding service functions for login and registration (#64)

* BETTERZON-112: Adding service functions for managing vendor shops (#65)

* BETTERZON-118: Adding service functions for managing favorite shops (#66)

Co-authored-by: henningxtro <sextro.henning@student.dhbw-karlsruhe.de>
Co-authored-by: root <root@DESKTOP-ARBPL82.localdomain>
Co-authored-by: Reboooooorn <61185041+Reboooooorn@users.noreply.github.com>
This commit is contained in:
Patrick
2021-05-29 10:58:27 +02:00
committed by GitHub
parent 197c39a61d
commit 6e8c52857f
117 changed files with 6624 additions and 2492 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Backend/src/index.ts
+13
View File
@@ -13,6 +13,13 @@ import {pricesRouter} from './models/prices/prices.router';
import {vendorsRouter} from './models/vendors/vendors.router';
import {errorHandler} from './middleware/error.middleware';
import {notFoundHandler} from './middleware/notFound.middleware';
import {usersRouter} from './models/users/users.router';
import {pricealarmsRouter} from './models/pricealarms/pricealarms.router';
import {contactpersonsRouter} from './models/contact_persons/contact_persons.router';
import {favoriteshopsRouter} from './models/favorite_shops/favoriteshops.router';
import {crawlingstatusRouter} from './models/crawling_status/crawling_status.router';
const cookieParser = require('cookie-parser');
dotenv.config();
@@ -37,11 +44,17 @@ const app = express();
app.use(helmet());
app.use(cors());
app.use(express.json());
app.use(cookieParser());
app.use('/products', productsRouter);
app.use('/categories', categoriesRouter);
app.use('/manufacturers', manufacturersRouter);
app.use('/prices', pricesRouter);
app.use('/users', usersRouter);
app.use('/vendors', vendorsRouter);
app.use('/pricealarms', pricealarmsRouter);
app.use('/contactpersons', contactpersonsRouter);
app.use('/favoriteshops', favoriteshopsRouter);
app.use('/crawlingstatus', crawlingstatusRouter);
app.use(errorHandler);
app.use(notFoundHandler);
Backend/src/middleware/error.middleware.ts
+3 -3
View File
@@ -1,5 +1,5 @@
import HttpException from "../common/http-exception";
import { Request, Response, NextFunction } from "express";
import HttpException from '../common/http-exception';
import {Request, Response, NextFunction} from 'express';
export const errorHandler = (
error: HttpException,
@@ -9,7 +9,7 @@ export const errorHandler = (
) => {
const status = error.statusCode || 500;
const message =
error.message || "It's not you. It's us. We are having some problems.";
error.message || 'It\'s not you. It\'s us. We are having some problems.';
response.status(status).send(message);
};
Backend/src/middleware/notFound.middleware.ts
+2 -2
View File
@@ -1,4 +1,4 @@
import { Request, Response, NextFunction } from "express";
import {Request, Response, NextFunction} from 'express';
export const notFoundHandler = (
request: Request,
@@ -6,7 +6,7 @@ export const notFoundHandler = (
next: NextFunction
) => {
const message = "Resource not found";
const message = 'Resource not found';
response.status(404).send(message);
};
Backend/src/models/categories/categories.router.ts
+6 -48
View File
@@ -20,19 +20,18 @@ export const categoriesRouter = express.Router();
*/
// GET categories/
categoriesRouter.get('/', async (req: Request, res: Response) => {
try {
const categories: Categories = await CategoryService.findAll();
res.status(200).send(categories);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET categories/:id
categoriesRouter.get('/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
@@ -46,12 +45,12 @@ categoriesRouter.get('/:id', async (req: Request, res: Response) => {
res.status(200).send(category);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET categories/search/:term
categoriesRouter.get('/search/:term', async (req: Request, res: Response) => {
const term: string = req.params.term;
@@ -65,48 +64,7 @@ categoriesRouter.get('/search/:term', async (req: Request, res: Response) => {
res.status(200).send(categories);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST items/
// categoriesRouter.post('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.create(category);
//
// res.sendStatus(201);
// } catch (e) {
// res.status(404).send(e.message);
// }
// });
//
// // PUT items/
//
// categoriesRouter.put('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.update(category);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
//
// // DELETE items/:id
//
// categoriesRouter.delete('/:id', async (req: Request, res: Response) => {
// try {
// const id: number = parseInt(req.params.id, 10);
// await CategoryService.remove(id);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
Backend/src/models/categories/categories.service.ts
+11 -33
View File
@@ -23,6 +23,9 @@ import {Categories} from './categories.interface';
* Service Methods
*/
/**
* Fetches and returns all known categories
*/
export const findAll = async (): Promise<Categories> => {
let conn;
let categRows = [];
@@ -54,6 +57,10 @@ export const findAll = async (): Promise<Categories> => {
return categRows;
};
/**
* Fetches and returns the category with the specified id
* @param id The id of the category to fetch
*/
export const find = async (id: number): Promise<Category> => {
let conn;
let categ: any;
@@ -77,6 +84,10 @@ export const find = async (id: number): Promise<Category> => {
return categ;
};
/**
* Fetches and returns all categories that match the search term
* @param term the term to match
*/
export const findBySearchTerm = async (term: string): Promise<Categories> => {
let conn;
let categRows = [];
@@ -100,36 +111,3 @@ export const findBySearchTerm = async (term: string): Promise<Categories> => {
return categRows;
};
// export const create = async (newItem: Product): Promise<void> => {
// let conn;
// try {
// conn = await pool.getConnection();
// await conn.query("");
//
// } catch (err) {
// throw err;
// } finally {
// if (conn) conn.end();
// }
// };
//
// export const update = async (updatedItem: Product): Promise<void> => {
// if (models.products[updatedItem.product_id]) {
// models.products[updatedItem.product_id] = updatedItem;
// return;
// }
//
// throw new Error("No record found to update");
// };
//
// export const remove = async (id: number): Promise<void> => {
// const record: Product = models.products[id];
//
// if (record) {
// delete models.products[id];
// return;
// }
//
// throw new Error("No record found to delete");
// };
Backend/src/models/contact_persons/contact_person.interface.ts
+9
View File
@@ -0,0 +1,9 @@
export interface Contact_Person {
contact_person_id: number;
first_name: string;
last_name: string;
gender: string;
email: string;
phone: string;
vendor_id: number;
}
Backend/src/models/contact_persons/contact_persons.interface.ts
+5
View File
@@ -0,0 +1,5 @@
import {Contact_Person} from './contact_person.interface';
export interface Contact_Persons {
[key: number]: Contact_Person;
}
Backend/src/models/contact_persons/contact_persons.router.ts
+129
View File
@@ -0,0 +1,129 @@
/**
* Required External Modules and Interfaces
*/
import express, {Request, Response} from 'express';
import * as ContactPersonService from './contact_persons.service';
import {Contact_Person} from './contact_person.interface';
import {Contact_Persons} from './contact_persons.interface';
import * as UserService from '../users/users.service';
import * as PriceService from '../prices/prices.service';
/**
* Router Definition
*/
export const contactpersonsRouter = express.Router();
/**
* Controller Definitions
*/
// GET contactpersons/
contactpersonsRouter.get('/', async (req: Request, res: Response) => {
try {
const contacts: Contact_Persons = await ContactPersonService.findAll();
res.status(200).send(contacts);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET contactpersons/:id
contactpersonsRouter.get('/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
if (!id) {
res.status(400).send('Missing parameters.');
return;
}
try {
const contact: Contact_Person = await ContactPersonService.find(id);
res.status(200).send(contact);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET contactpersons/byvendor/:id
contactpersonsRouter.get('/byvendor/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
if (!id) {
res.status(400).send('Missing parameters.');
return;
}
try {
const contacts: Contact_Persons = await ContactPersonService.findByVendor(id);
res.status(200).send(contacts);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST contactpersons/
contactpersonsRouter.post('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get required parameters
const vendor_id = req.body.vendor_id;
const first_name = req.body.first_name;
const last_name = req.body.last_name;
const gender = req.body.gender;
const email = req.body.email;
const phone = req.body.phone;
const success = await ContactPersonService.createContactEntry(user.user_id, vendor_id, first_name, last_name, gender, email, phone);
if (success) {
res.sendStatus(200);
} else {
res.sendStatus(500);
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// PUT contactpersons/:id
contactpersonsRouter.put('/:id', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get required parameters
const contact_person_id = parseInt(req.params.id, 10);
const vendor_id = req.body.vendor_id;
const first_name = req.body.first_name;
const last_name = req.body.last_name;
const gender = req.body.gender;
const email = req.body.email;
const phone = req.body.phone;
const success = await ContactPersonService.updateContactEntry(user.user_id, contact_person_id, vendor_id, first_name, last_name, gender, email, phone);
if (success) {
res.sendStatus(200);
} else {
res.sendStatus(500);
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/contact_persons/contact_persons.service.ts
+175
View File
@@ -0,0 +1,175 @@
import * as dotenv from 'dotenv';
dotenv.config();
const mariadb = require('mariadb');
const pool = mariadb.createPool({
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
connectionLimit: 5
});
/**
* Data Model Interfaces
*/
import {Contact_Person} from './contact_person.interface';
import {Contact_Persons} from './contact_persons.interface';
/**
* Service Methods
*/
/**
* Fetches and returns all known contact persons
*/
export const findAll = async (): Promise<Contact_Persons> => {
let conn;
let contRows = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT contact_person_id, first_name, last_name, gender, email, phone, vendor_id FROM contact_persons');
for (let row in rows) {
if (row !== 'meta') {
contRows.push(rows[row]);
}
}
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return contRows;
};
/**
* Fetches and returns the contact person with the specified id
* @param id The id of the contact person to fetch
*/
export const find = async (id: number): Promise<Contact_Person> => {
let conn;
let cont: any;
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT contact_person_id, first_name, last_name, gender, email, phone, vendor_id FROM contact_persons WHERE contact_person_id = ?', id);
for (let row in rows) {
if (row !== 'meta') {
cont = rows[row];
}
}
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return cont;
};
/**
* Fetches and returns the contact persons for the specified vendor
* @param id The id of the vendor to fetch contact persons for
*/
export const findByVendor = async (id: number): Promise<Contact_Persons> => {
let conn;
let contRows = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT contact_person_id, first_name, last_name, gender, email, phone, vendor_id FROM contact_persons WHERE vendor_id = ?', id);
for (let row in rows) {
if (row !== 'meta') {
contRows.push(rows[row]);
}
}
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return contRows;
};
/**
* Creates a contact entry record
* @param user_id The user id of the issuing user
* @param vendor_id The vendor id of the vendor to create the record for
* @param first_name The first name of the contact person
* @param last_name The last name of the contact person
* @param gender The gender of the contact person
* @param email The email of the contact person
* @param phone The phone number of the contact person
*/
export const createContactEntry = async (user_id: number, vendor_id: number, first_name: string, last_name: string, gender: string, email: string, phone: string): Promise<Boolean> => {
let conn;
try {
conn = await pool.getConnection();
// Check if the user is authorized to manage the requested vendor
const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
if (user_vendor_rows.length !== 1) {
return false;
}
// Create contact person entry
const res = await conn.query('INSERT INTO contact_persons (first_name, last_name, gender, email, phone, vendor_id) VALUES (?, ?, ?, ?, ?, ?)', [first_name, last_name, gender, email, phone, vendor_id]);
// If there are more / less than 1 affected rows, return false
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
/**
* Updates a contact entry record
* @param user_id The user id of the issuing user
* @param contact_person_id The id of the record to update
* @param vendor_id The vendor id of the vendor to create the record for
* @param first_name The first name of the contact person
* @param last_name The last name of the contact person
* @param gender The gender of the contact person
* @param email The email of the contact person
* @param phone The phone number of the contact person
*/
export const updateContactEntry = async (user_id: number, contact_person_id: number, vendor_id: number, first_name: string, last_name: string, gender: string, email: string, phone: string): Promise<Boolean> => {
let conn;
try {
conn = await pool.getConnection();
// Check if the user is authorized to manage the requested vendor
const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
if (user_vendor_rows.length !== 1) {
return false;
}
// Create contact person entry
const res = await conn.query('UPDATE contact_persons SET first_name = ?, last_name = ?, gender = ?, email = ?, phone = ? WHERE contact_person_id = ? AND vendor_id = ?', [first_name, last_name, gender, email, phone, contact_person_id, vendor_id]);
// If there are more / less than 1 affected rows, return false
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
Backend/src/models/crawling_status/crawling_status.interface.ts
+7
View File
@@ -0,0 +1,7 @@
export interface Crawling_Status {
process_id: number;
started_timestamp: Date;
combinations_to_crawl: number;
successful_crawls: number;
failed_crawls: number;
}
Backend/src/models/crawling_status/crawling_status.router.ts
+42
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@@ -0,0 +1,42 @@
/**
* Required External Modules and Interfaces
*/
import express, {Request, Response} from 'express';
import * as CrawlingStatusService from './crawling_status.service';
import {Crawling_Status} from './crawling_status.interface';
import {Crawling_Statuses} from './crawling_statuses.interface';
import * as UserService from '../users/users.service';
/**
* Router Definition
*/
export const crawlingstatusRouter = express.Router();
/**
* Controller Definitions
*/
// GET crawlingstatus/
crawlingstatusRouter.get('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
if (!user.is_admin) {
res.sendStatus(403);
return;
}
const status: Crawling_Status = await CrawlingStatusService.getCurrent();
res.status(200).send(status);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/crawling_status/crawling_status.service.ts
+75
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@@ -0,0 +1,75 @@
import * as dotenv from 'dotenv';
dotenv.config();
const mariadb = require('mariadb');
const pool = mariadb.createPool({
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
connectionLimit: 5
});
/**
* Data Model Interfaces
*/
import {Crawling_Status} from './crawling_status.interface';
import {Crawling_Statuses} from './crawling_statuses.interface';
/**
* Service Methods
*/
/**
* Fetches and returns the current crawling status if the issuing user is an admin
*/
export const getCurrent = async (): Promise<Crawling_Status> => {
let conn;
try {
conn = await pool.getConnection();
// Get the current crawling process
let process_info = {
process_id: -1,
started_timestamp: new Date(),
combinations_to_crawl: -1
};
const process = await conn.query('SELECT process_id, started_timestamp, combinations_to_crawl FROM crawling_processes ORDER BY started_timestamp DESC LIMIT 1');
for (let row in process) {
if (row !== 'meta') {
process_info = process[row];
}
}
// Get the current status
let total_crawls = 0;
let successful_crawls = 0;
const rows = await conn.query('SELECT COUNT(status_id) as total, SUM(success) as successful FROM crawling_status WHERE process_id = ?', process_info.process_id);
for (let row in rows) {
if (row !== 'meta') {
total_crawls = rows[row].total;
successful_crawls = rows[row].successful;
}
}
const failed_crawls = total_crawls - successful_crawls;
return {
process_id: process_info.process_id,
started_timestamp: process_info.started_timestamp,
combinations_to_crawl: process_info.combinations_to_crawl,
successful_crawls: successful_crawls,
failed_crawls: failed_crawls,
}
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
Backend/src/models/crawling_status/crawling_statuses.interface.ts
+5
View File
@@ -0,0 +1,5 @@
import {Crawling_Status} from './crawling_status.interface';
export interface Crawling_Statuses {
[key: number]: Crawling_Status;
}
Backend/src/models/favorite_shops/favoriteshop.interface.ts
+5
View File
@@ -0,0 +1,5 @@
export interface FavoriteShop {
favorite_id: number;
vendor_id: number;
user_id: number;
}
Backend/src/models/favorite_shops/favoriteshops.interface.ts
+5
View File
@@ -0,0 +1,5 @@
import {FavoriteShop} from './favoriteshop.interface';
export interface FavoriteShops {
[key: number]: FavoriteShop;
}
Backend/src/models/favorite_shops/favoriteshops.router.ts
+100
View File
@@ -0,0 +1,100 @@
/**
* Required External Modules and Interfaces
*/
import express, {Request, Response} from 'express';
import * as FavoriteShopsService from './favoriteshops.service';
import {FavoriteShop} from './favoriteshop.interface';
import {FavoriteShops} from './favoriteshops.interface';
import * as UserService from '../users/users.service';
/**
* Router Definition
*/
export const favoriteshopsRouter = express.Router();
/**
* Controller Definitions
*/
//GET favoriteshops/
favoriteshopsRouter.get('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
const priceAlarms = await FavoriteShopsService.getFavoriteShops(user.user_id);
res.status(200).send(priceAlarms);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST favoriteshops/
favoriteshopsRouter.post('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get info for price alarm creation
const vendor_id = req.body.vendor_id;
if (!vendor_id) {
// Missing
res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
return;
}
// Create price alarm
const success = await FavoriteShopsService.createFavoriteShop(user.user_id, vendor_id);
if (success) {
res.status(201).send(JSON.stringify({success: true}));
return;
} else {
res.status(500).send(JSON.stringify({success: false}));
return;
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// DELETE favoriteshops/
favoriteshopsRouter.delete('/:id', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get info for price alarm creation
const favorite_id = parseInt(req.params.id, 10);
if (!favorite_id) {
// Missing
res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
return;
}
// Create price alarm
const success = await FavoriteShopsService.deleteFavoriteShop(user.user_id, favorite_id);
if (success) {
res.status(201).send(JSON.stringify({success: true}));
return;
} else {
res.status(500).send(JSON.stringify({success: false}));
return;
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/favorite_shops/favoriteshops.service.ts
+92
View File
@@ -0,0 +1,92 @@
import * as dotenv from 'dotenv';
dotenv.config();
const mariadb = require('mariadb');
const pool = mariadb.createPool({
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
connectionLimit: 5
});
/**
* Data Model Interfaces
*/
import {FavoriteShop} from './favoriteshop.interface';
import {FavoriteShops} from './favoriteshops.interface';
/**
* Service Methods
*/
/**
* Creates a favorite shop entry for the given user for the given shop
* @param user_id The id of the user to create the favorite shop entry for
* @param vendor_id The id of the vendor to set as favorite
*/
export const createFavoriteShop = async (user_id: number, vendor_id: number): Promise<boolean> => {
let conn;
try {
conn = await pool.getConnection();
const res = await conn.query('INSERT INTO favorite_shops (vendor_id, user_id) VALUES (?, ?)', [vendor_id, user_id]);
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
/**
* Fetches and returns all favorite shops for the given user
* @param user_id
*/
export const getFavoriteShops = async (user_id: number): Promise<FavoriteShops> => {
let conn;
let shops = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT favorite_id, vendor_id, user_id FROM favorite_shops WHERE user_id = ?', user_id);
for (let row in rows) {
if (row !== 'meta') {
shops.push(rows[row]);
}
}
return shops;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
/**
* Deletes the given favorite shop entry
* @param user_id The id of the user that wants to delete the favorite shop entry
* @param favorite_id The favorite shop to delete
*/
export const deleteFavoriteShop = async (user_id: number, favorite_id: number): Promise<boolean> => {
let conn;
try {
conn = await pool.getConnection();
const res = await conn.query('DELETE FROM favorite_shops WHERE favorite_id = ? AND user_id = ?', [favorite_id, user_id]);
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
Backend/src/models/manufacturers/manufacturers.router.ts
+9 -51
View File
@@ -19,20 +19,19 @@ export const manufacturersRouter = express.Router();
* Controller Definitions
*/
// GET items/
// GET manufacturers/
manufacturersRouter.get('/', async (req: Request, res: Response) => {
try {
const manufacturers: Manufacturers = await ManufacturerService.findAll();
res.status(200).send(manufacturers);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET items/:id
// GET manufacturers/:id
manufacturersRouter.get('/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
@@ -46,12 +45,12 @@ manufacturersRouter.get('/:id', async (req: Request, res: Response) => {
res.status(200).send(manufacturer);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET items/:name
// GET manufacturers/:term
manufacturersRouter.get('/search/:term', async (req: Request, res: Response) => {
const term: string = req.params.term;
@@ -65,48 +64,7 @@ manufacturersRouter.get('/search/:term', async (req: Request, res: Response) =>
res.status(200).send(manufacturer);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST items/
// manufacturersRouter.post('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.create(category);
//
// res.sendStatus(201);
// } catch (e) {
// res.status(404).send(e.message);
// }
// });
//
// // PUT items/
//
// manufacturersRouter.put('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.update(category);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
//
// // DELETE items/:id
//
// manufacturersRouter.delete('/:id', async (req: Request, res: Response) => {
// try {
// const id: number = parseInt(req.params.id, 10);
// await CategoryService.remove(id);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
Backend/src/models/manufacturers/manufacturers.service.ts
+11 -33
View File
@@ -23,6 +23,9 @@ import {Manufacturers} from './manufacturers.interface';
* Service Methods
*/
/**
* Fetches and returns all known manufacturers
*/
export const findAll = async (): Promise<Manufacturers> => {
let conn;
let manRows = [];
@@ -54,6 +57,10 @@ export const findAll = async (): Promise<Manufacturers> => {
return manRows;
};
/**
* Fetches and returns the manufacturer with the specified id
* @param id The id of the manufacturer to fetch
*/
export const find = async (id: number): Promise<Manufacturer> => {
let conn;
let man: any;
@@ -77,6 +84,10 @@ export const find = async (id: number): Promise<Manufacturer> => {
return man;
};
/**
* Fetches and returns all manufacturers that match the search term
* @param term the term to match
*/
export const findBySearchTerm = async (term: string): Promise<Manufacturers> => {
let conn;
let manRows = [];
@@ -100,36 +111,3 @@ export const findBySearchTerm = async (term: string): Promise<Manufacturers> =>
return manRows;
};
// export const create = async (newItem: Product): Promise<void> => {
// let conn;
// try {
// conn = await pool.getConnection();
// await conn.query("");
//
// } catch (err) {
// throw err;
// } finally {
// if (conn) conn.end();
// }
// };
//
// export const update = async (updatedItem: Product): Promise<void> => {
// if (models.products[updatedItem.product_id]) {
// models.products[updatedItem.product_id] = updatedItem;
// return;
// }
//
// throw new Error("No record found to update");
// };
//
// export const remove = async (id: number): Promise<void> => {
// const record: Product = models.products[id];
//
// if (record) {
// delete models.products[id];
// return;
// }
//
// throw new Error("No record found to delete");
// };
Backend/src/models/pricealarms/pricealarm.interface.ts
+6
View File
@@ -0,0 +1,6 @@
export interface PriceAlarm {
alarm_id: number;
user_id: number;
product_id: number;
defined_price: number;
}
Backend/src/models/pricealarms/pricealarms.interface.ts
+5
View File
@@ -0,0 +1,5 @@
import {PriceAlarm} from './pricealarm.interface';
export interface PriceAlarms {
[key: number]: PriceAlarm;
}
Backend/src/models/pricealarms/pricealarms.router.ts
+102
View File
@@ -0,0 +1,102 @@
/**
* Required External Modules and Interfaces
*/
import express, {Request, Response} from 'express';
import * as PriceAlarmsService from './pricealarms.service';
import {PriceAlarm} from './pricealarm.interface';
import {PriceAlarms} from './pricealarms.interface';
import * as UserService from '../users/users.service';
/**
* Router Definition
*/
export const pricealarmsRouter = express.Router();
/**
* Controller Definitions
*/
//GET pricealarms/
pricealarmsRouter.get('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
const priceAlarms = await PriceAlarmsService.getPriceAlarms(user.user_id);
res.status(200).send(priceAlarms);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST pricealarms/
pricealarmsRouter.post('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get info for price alarm creation
const product_id = req.body.product_id;
const defined_price = req.body.defined_price;
if (!product_id || !defined_price) {
// Missing
res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
return;
}
// Create price alarm
const success = await PriceAlarmsService.createPriceAlarm(user.user_id, product_id, defined_price);
if (success) {
res.status(201).send(JSON.stringify({success: true}));
return;
} else {
res.status(500).send(JSON.stringify({success: false}));
return;
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// PUT pricealarms/
pricealarmsRouter.put('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get info for price alarm creation
const alarm_id = req.body.alarm_id;
const defined_price = req.body.defined_price;
if (!alarm_id || !defined_price) {
// Missing
res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
return;
}
// Create price alarm
const success = await PriceAlarmsService.updatePriceAlarm(alarm_id, user.user_id, defined_price);
if (success) {
res.status(201).send(JSON.stringify({success: true}));
return;
} else {
res.status(500).send(JSON.stringify({success: false}));
return;
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/pricealarms/pricealarms.service.ts
+94
View File
@@ -0,0 +1,94 @@
import * as dotenv from 'dotenv';
dotenv.config();
const mariadb = require('mariadb');
const pool = mariadb.createPool({
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
connectionLimit: 5
});
/**
* Data Model Interfaces
*/
import {PriceAlarm} from './pricealarm.interface';
import {PriceAlarms} from './pricealarms.interface';
/**
* Service Methods
*/
/**
* Creates a price alarm for the given user for the product with the defined price
* @param user_id The id of the user to create the price alarm for
* @param product_id The id of the product to create the price alarm for
* @param defined_price The defined price for the price alarm
*/
export const createPriceAlarm = async (user_id: number, product_id: number, defined_price: number): Promise<boolean> => {
let conn;
try {
conn = await pool.getConnection();
const res = await conn.query('INSERT INTO price_alarms (user_id, product_id, defined_price) VALUES (?, ?, ?)', [user_id, product_id, defined_price]);
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
/**
* Fetches and returns all price alarms for the given user
* @param user_id
*/
export const getPriceAlarms = async (user_id: number): Promise<PriceAlarms> => {
let conn;
let priceAlarms = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT alarm_id, user_id, product_id, defined_price FROM price_alarms WHERE user_id = ?', user_id);
for (let row in rows) {
if (row !== 'meta') {
priceAlarms.push(rows[row]);
}
}
return priceAlarms;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
/**
* Updates the given price alarm with the given fields
* @param alarm_id The id of the price alarm to update
* @param user_id The id of the user that wants to update the price alarm
* @param defined_price The defined price for the price alarm
*/
export const updatePriceAlarm = async (alarm_id: number, user_id: number, defined_price: number): Promise<boolean> => {
let conn;
try {
conn = await pool.getConnection();
const res = await conn.query('UPDATE price_alarms SET defined_price = ? WHERE alarm_id = ? AND user_id = ?', [defined_price, alarm_id, user_id]);
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
Backend/src/models/prices/price.interface.ts
+20 -3
View File
@@ -4,7 +4,24 @@ export interface Price {
vendor_id: number;
price_in_cents: number;
timestamp: Date;
// Only for deals
amazonDifference?: number;
amazonDifferencePercent?: number;
}
export class Deal implements Price {
price_id: number;
product_id: number;
vendor_id: number;
price_in_cents: number;
timestamp: Date;
amazonDifference: number;
amazonDifferencePercent: number;
constructor(price_id: number, product_id: number, vendor_id: number, price_in_cents: number, timestamp: Date, amazonDifference: number, amazonDifferencePercent: number) {
this.price_id = price_id;
this.product_id = product_id;
this.vendor_id = vendor_id;
this.price_in_cents = price_in_cents;
this.timestamp = timestamp;
this.amazonDifference = amazonDifference;
this.amazonDifferencePercent = amazonDifferencePercent;
}
}
Backend/src/models/prices/prices.router.ts
+49 -45
View File
@@ -6,6 +6,7 @@ import express, {Request, Response} from 'express';
import * as PriceService from './prices.service';
import {Price} from './price.interface';
import {Prices} from './prices.interface';
import * as UserService from '../users/users.service';
/**
@@ -20,7 +21,6 @@ export const pricesRouter = express.Router();
*/
// GET prices/
pricesRouter.get('/', async (req: Request, res: Response) => {
try {
let prices: Prices = [];
@@ -40,12 +40,12 @@ pricesRouter.get('/', async (req: Request, res: Response) => {
res.status(200).send(prices);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET prices/:id
pricesRouter.get('/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
@@ -59,12 +59,12 @@ pricesRouter.get('/:id', async (req: Request, res: Response) => {
res.status(200).send(price);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET prices/bestDeals
pricesRouter.get('/bestDeals/:amount', async (req: Request, res: Response) => {
const amount: number = parseInt(req.params.amount, 10);
@@ -78,47 +78,51 @@ pricesRouter.get('/bestDeals/:amount', async (req: Request, res: Response) => {
res.status(200).send(prices);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST items/
// GET prices/byProduct/list/[]
pricesRouter.get('/byProduct/list/:ids', async (req: Request, res: Response) => {
const productIds: [number] = JSON.parse(req.params.ids);
// pricesRouter.post('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.create(category);
//
// res.sendStatus(201);
// } catch (e) {
// res.status(404).send(e.message);
// }
// });
//
// // PUT items/
//
// pricesRouter.put('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.update(category);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
//
// // DELETE items/:id
//
// pricesRouter.delete('/:id', async (req: Request, res: Response) => {
// try {
// const id: number = parseInt(req.params.id, 10);
// await CategoryService.remove(id);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
if (!productIds) {
res.status(400).send('Missing parameters.');
return;
}
try {
const prices: Prices = await PriceService.findListByProducts(productIds);
res.status(200).send(prices);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST prices/
pricesRouter.post('/', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get required parameters
const vendor_id = req.body.vendor_id;
const product_id = req.body.product_id;
const price_in_cents = req.body.price_in_cents;
const success = await PriceService.createPriceEntry(user.user_id, vendor_id, product_id, price_in_cents);
if (success) {
res.sendStatus(200);
} else {
res.sendStatus(500);
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/prices/prices.service.ts
+144 -56
View File
@@ -15,7 +15,7 @@ const pool = mariadb.createPool({
* Data Model Interfaces
*/
import {Price} from './price.interface';
import {Deal, Price} from './price.interface';
import {Prices} from './prices.interface';
@@ -23,12 +23,15 @@ import {Prices} from './prices.interface';
* Service Methods
*/
/**
* Fetches and returns all known prices
*/
export const findAll = async (): Promise<Prices> => {
let conn;
let priceRows = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices');
const rows = await conn.query('SELECT price_id, product_id, v.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE active_listing = true AND v.isActive = true');
for (let row in rows) {
if (row !== 'meta') {
let price: Price = {
@@ -60,12 +63,16 @@ export const findAll = async (): Promise<Prices> => {
return priceRows;
};
/**
* Fetches and returns the price with the specified id
* @param id The id of the price to fetch
*/
export const find = async (id: number): Promise<Price> => {
let conn;
let price: any;
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE price_id = ?', id);
const rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE price_id = ? AND active_listing = true AND v.isActive = true', id);
for (let row in rows) {
if (row !== 'meta') {
price = rows[row];
@@ -83,12 +90,16 @@ export const find = async (id: number): Promise<Price> => {
return price;
};
/**
* Fetches and returns all prices that belong to the specified product
* @param product the product to fetch the prices for
*/
export const findByProduct = async (product: number): Promise<Prices> => {
let conn;
let priceRows = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE product_id = ?', product);
const rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND active_listing = true AND v.isActive = true', product);
for (let row in rows) {
if (row !== 'meta') {
priceRows.push(rows[row]);
@@ -106,6 +117,14 @@ export const findByProduct = async (product: number): Promise<Prices> => {
return priceRows;
};
/**
* Fetches and returns prices that belong to the specified product.
* If type is newest, only the newest prices for each vendor will be returned.
* If type is lowest, the lowest daily price for the product is returned.
* Otherwise, all prices for this product are returned.
* @param product The product to fetch the prices for
* @param type The type of prices, e.g. newest / lowest
*/
export const findByType = async (product: string, type: string): Promise<Prices> => {
let conn;
let priceRows = [];
@@ -123,16 +142,17 @@ export const findByType = async (product: string, type: string): Promise<Prices>
'PARTITION BY p.vendor_id ' +
'ORDER BY p.timestamp DESC) AS rk ' +
'FROM prices p ' +
'WHERE product_id = ? AND vendor_id != 1) ' +
'LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id ' +
'WHERE product_id = ? AND p.vendor_id != 1 AND active_listing = true AND v.isActive = true) ' +
'SELECT s.* ' +
'FROM summary s ' +
'WHERE s.rk = 1 '), product);
} else if (type === 'lowest') {
// Used to get the lowest prices for this product over a period of time
rows = await conn.query('SELECT price_id, product_id, vendor_id, MIN(price_in_cents) as price_in_cents, timestamp FROM prices WHERE product_id = ? AND vendor_id != 1 GROUP BY DAY(timestamp) ORDER BY timestamp', product);
rows = await conn.query('SELECT price_id, product_id, p.vendor_id, MIN(price_in_cents) as price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND v.vendor_id != 1 AND active_listing = true AND v.isActive = true GROUP BY DAY(timestamp) ORDER BY timestamp', product);
} else {
// If no type is given, return all prices for this product
rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE product_id = ? AND vendor_id != 1', product);
rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND p.vendor_id != 1 AND active_listing = true AND v.isActive = true', product);
}
for (let row in rows) {
@@ -152,6 +172,15 @@ export const findByType = async (product: string, type: string): Promise<Prices>
return priceRows;
};
/**
* Fetches and returns prices that belong to the specified product and vendor.
* If type is newest, only the newest known price for the product at the vendor is returned.
* If type is lowest, only the lowest ever known price for the product at the vendor is returned.
* Otherwise, all prices for this product are returned.
* @param product The product to fetch the prices for
* @param vendor The vendor to fetch the prices for
* @param type The type of prices, e.g. newest / lowest
*/
export const findByVendor = async (product: string, vendor: string, type: string): Promise<Prices> => {
let conn;
let priceRows = [];
@@ -160,13 +189,13 @@ export const findByVendor = async (product: string, vendor: string, type: string
let rows = [];
if (type === 'newest') {
// Used to get the newest price for this product and vendor
rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE product_id = ? AND vendor_id = ? ORDER BY timestamp DESC LIMIT 1', [product, vendor]);
rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND p.vendor_id = ? AND active_listing = true AND v.isActive = true ORDER BY timestamp DESC LIMIT 1', [product, vendor]);
} else if (type === 'lowest') {
// Used to get the lowest prices for this product and vendor in all time
rows = await conn.query('SELECT price_id, product_id, vendor_id, MIN(price_in_cents) as price_in_cents, timestamp FROM prices WHERE product_id = ? AND vendor_id = ? LIMIT 1', [product, vendor]);
rows = await conn.query('SELECT price_id, product_id, p.vendor_id, MIN(price_in_cents) as price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND p.vendor_id = ? AND active_listing = true AND v.isActive = true LIMIT 1', [product, vendor]);
} else {
// If no type is given, return all prices for this product and vendor
rows = await conn.query('SELECT price_id, product_id, vendor_id, price_in_cents, timestamp FROM prices WHERE product_id = ? AND vendor_id = ?', [product, vendor]);
rows = await conn.query('SELECT price_id, product_id, p.vendor_id, price_in_cents, timestamp FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE product_id = ? AND p.vendor_id = ? AND active_listing = true AND v.isActive = true', [product, vendor]);
}
for (let row in rows) {
@@ -186,6 +215,11 @@ export const findByVendor = async (product: string, vendor: string, type: string
return priceRows;
};
/**
* Fetches and returns the best current deals, i.e. the non-amazon prices that have the biggest difference to amazon prices.
* Only the latest known prices for every vendor are taken into consideration so we only get up-to-date-deals.
* @param amount The amount of deals to return
*/
export const getBestDeals = async (amount: number): Promise<Prices> => {
let conn;
let priceRows = [];
@@ -195,7 +229,6 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
let allPrices: Record<number, Price[]> = {};
// Get newest prices for every product at every vendor
const rows = await conn.query(
'WITH summary AS (\n' +
' SELECT p.product_id,\n' +
@@ -205,7 +238,7 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
' ROW_NUMBER() OVER(\n' +
' PARTITION BY p.product_id, p.vendor_id\n' +
' ORDER BY p.timestamp DESC) AS rk\n' +
' FROM prices p)\n' +
' FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id WHERE active_listing = true AND v.isActive = true)\n' +
'SELECT s.*\n' +
'FROM summary s\n' +
'WHERE s.rk = 1');
@@ -222,10 +255,11 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
}
// Iterate over all prices to find the products with the biggest difference between amazon and other vendor
let deals = [];
for (let productId in Object.keys(allPrices)) {
if (allPrices[productId]) {
let pricesForProd = allPrices[productId];
let deals: Deal[] = [];
Object.keys(allPrices).forEach(productId => {
if (allPrices[parseInt(productId)]) {
let pricesForProd = allPrices[parseInt(productId)];
// Get amazon price and lowest price from other vendor
let amazonPrice = {} as Price;
@@ -234,6 +268,7 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
if (price.vendor_id === 1) {
amazonPrice = price;
} else {
// If there is no lowest price yet or the price of the current iteration is lower, set / replace it
if (!lowestPrice.price_in_cents || lowestPrice.price_in_cents > price.price_in_cents) {
lowestPrice = price;
}
@@ -245,29 +280,27 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
'product_id': lowestPrice.product_id,
'vendor_id': lowestPrice.vendor_id,
'price_in_cents': lowestPrice.price_in_cents,
'timestamp' :lowestPrice.timestamp,
'timestamp': lowestPrice.timestamp,
'amazonDifference': (amazonPrice.price_in_cents - lowestPrice.price_in_cents),
'amazonDifferencePercent': ((1 - (lowestPrice.price_in_cents / amazonPrice.price_in_cents)) * 100),
};
// Push only deals were the amazon price is actually higher
if(deal.amazonDifferencePercent > 0) {
deals.push(deal);
if (deal.amazonDifferencePercent > 0) {
deals.push(deal as Deal);
}
}
}
});
// Sort to have the best deals on the top
deals.sort((a, b) => a.amazonDifferencePercent < b.amazonDifferencePercent ? 1 : -1);
deals.sort((a, b) => a.amazonDifferencePercent! < b.amazonDifferencePercent! ? 1 : -1);
// Return only as many records as requested or the maximum amount of found deals, whatever is less
let maxAmt = Math.min(amount, deals.length);
for (let dealIndex = 0; dealIndex < maxAmt; dealIndex++){
//console.log(deals[dealIndex]);
for (let dealIndex = 0; dealIndex < maxAmt; dealIndex++) {
priceRows.push(deals[dealIndex] as Price);
}
} catch (err) {
console.log(err);
throw err;
@@ -280,35 +313,90 @@ export const getBestDeals = async (amount: number): Promise<Prices> => {
return priceRows;
};
// export const create = async (newItem: Product): Promise<void> => {
// let conn;
// try {
// conn = await pool.getConnection();
// await conn.query("");
//
// } catch (err) {
// throw err;
// } finally {
// if (conn) conn.end();
// }
// };
//
// export const update = async (updatedItem: Product): Promise<void> => {
// if (models.products[updatedItem.product_id]) {
// models.products[updatedItem.product_id] = updatedItem;
// return;
// }
//
// throw new Error("No record found to update");
// };
//
// export const remove = async (id: number): Promise<void> => {
// const record: Product = models.products[id];
//
// if (record) {
// delete models.products[id];
// return;
// }
//
// throw new Error("No record found to delete");
// };
/**
* Fetches and returns the lowest, latest, non-amazon price for each given product
* @param productIds the ids of the products
*/
export const findListByProducts = async (productIds: [number]): Promise<Prices> => {
let conn;
let priceRows: Price[] = [];
try {
conn = await pool.getConnection();
let allPrices: Record<number, Price[]> = {};
// Get newest prices for every given product at every vendor
const rows = await conn.query(
'WITH summary AS (\n' +
' SELECT p.product_id,\n' +
' p.vendor_id,\n' +
' p.price_in_cents,\n' +
' p.timestamp,\n' +
' ROW_NUMBER() OVER(\n' +
' PARTITION BY p.product_id, p.vendor_id\n' +
' ORDER BY p.timestamp DESC) AS rk\n' +
' FROM prices p LEFT OUTER JOIN vendors v ON v.vendor_id = p.vendor_id ' +
' WHERE p.product_id IN (?) AND v.isActive = true' +
' AND p.vendor_id != 1 AND active_listing = true)\n' +
'SELECT s.*\n' +
'FROM summary s\n' +
'WHERE s.rk = 1', [productIds]);
// Write returned values to allPrices map with product id as key and a list of prices as value
for (let row in rows) {
if (row !== 'meta') {
if (!allPrices[parseInt(rows[row].product_id)]) {
allPrices[parseInt(rows[row].product_id)] = [];
}
allPrices[parseInt(rows[row].product_id)].push(rows[row]);
}
}
// Iterate over all products to find lowest price
Object.keys(allPrices).forEach(productId => {
if (allPrices[parseInt(productId)]) {
let pricesForProd = allPrices[parseInt(productId)];
// Sort ascending by price so index 0 has the lowest price
pricesForProd.sort((a, b) => a.price_in_cents > b.price_in_cents ? 1 : -1);
// Push the lowest price to the return list
priceRows.push(pricesForProd[0]);
}
});
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return priceRows;
};
export const createPriceEntry = async (user_id: number, vendor_id: number, product_id: number, price_in_cents: number): Promise<Boolean> => {
let conn;
try {
conn = await pool.getConnection();
// Check if the user is authorized to manage the requested vendor
const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
if (user_vendor_rows.length !== 1) {
return false;
}
// Create price entry
const res = await conn.query('INSERT INTO prices (product_id, vendor_id, price_in_cents) VALUES (?,?,?)', [product_id, vendor_id, price_in_cents]);
// If there are more / less than 1 affected rows, return false
return res.affectedRows === 1;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
Backend/src/models/products/products.router.ts
+46 -48
View File
@@ -20,19 +20,18 @@ export const productsRouter = express.Router();
*/
// GET products/
productsRouter.get('/', async (req: Request, res: Response) => {
try {
const products: Products = await ProductService.findAll();
res.status(200).send(products);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET products/:id
productsRouter.get('/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
@@ -46,12 +45,12 @@ productsRouter.get('/:id', async (req: Request, res: Response) => {
res.status(200).send(product);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET products/search/:term
productsRouter.get('/search/:term', async (req: Request, res: Response) => {
const term: string = req.params.term;
@@ -65,12 +64,12 @@ productsRouter.get('/search/:term', async (req: Request, res: Response) => {
res.status(200).send(products);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET products/list/[1,2,3]
productsRouter.get('/list/:ids', async (req: Request, res: Response) => {
const ids: [number] = JSON.parse(req.params.ids);
@@ -84,50 +83,49 @@ productsRouter.get('/list/:ids', async (req: Request, res: Response) => {
res.status(200).send(products);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET products/bestDeals
// GET products/vendor/:id
productsRouter.get('/vendor/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
if (!id) {
res.status(400).send('Missing parameters.');
return;
}
// POST items/
try {
const products: Products = await ProductService.findByVendor(id);
// productsRouter.post('/', async (req: Request, res: Response) => {
// try {
// const product: Product = req.body.product;
//
// await ProductService.create(product);
//
// res.sendStatus(201);
// } catch (e) {
// res.status(404).send(e.message);
// }
// });
//
// // PUT items/
//
// productsRouter.put('/', async (req: Request, res: Response) => {
// try {
// const product: Product = req.body.product;
//
// await ProductService.update(product);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
//
// // DELETE items/:id
//
// productsRouter.delete('/:id', async (req: Request, res: Response) => {
// try {
// const id: number = parseInt(req.params.id, 10);
// await ProductService.remove(id);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
res.status(200).send(products);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST products/
productsRouter.post('/', async (req: Request, res: Response) => {
const asin: string = req.body.asin;
if (!asin) {
res.status(400).send('Missing parameters.');
return;
}
try {
const result: boolean = await ProductService.addNewProduct(asin);
if (result) {
res.sendStatus(201);
} else {
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/products/products.service.ts
+82 -32
View File
@@ -17,12 +17,16 @@ const pool = mariadb.createPool({
import {Product} from './product.interface';
import {Products} from './products.interface';
import * as http from 'http';
/**
* Service Methods
*/
/**
* Fetches and returns all known products
*/
export const findAll = async (): Promise<Products> => {
let conn;
let prodRows = [];
@@ -74,6 +78,10 @@ export const findAll = async (): Promise<Products> => {
return prodRows;
};
/**
* Fetches and returns the product with the specified id
* @param id The id of the product to fetch
*/
export const find = async (id: number): Promise<Product> => {
let conn;
let prod: any;
@@ -97,6 +105,10 @@ export const find = async (id: number): Promise<Product> => {
return prod;
};
/**
* Fetches and returns all products that match the search term
* @param term the term to match
*/
export const findBySearchTerm = async (term: string): Promise<Products> => {
let conn;
let prodRows = [];
@@ -122,6 +134,10 @@ export const findBySearchTerm = async (term: string): Promise<Products> => {
return prodRows;
};
/**
* Fetches and returns the product details for the given list of product ids
* @param ids The list of product ids to fetch the details for
*/
export const findList = async (ids: [number]): Promise<Products> => {
let conn;
let prodRows = [];
@@ -145,35 +161,69 @@ export const findList = async (ids: [number]): Promise<Products> => {
return prodRows;
};
// export const create = async (newItem: Product): Promise<void> => {
// let conn;
// try {
// conn = await pool.getConnection();
// await conn.query("");
//
// } catch (err) {
// throw err;
// } finally {
// if (conn) conn.end();
// }
// };
//
// export const update = async (updatedItem: Product): Promise<void> => {
// if (models.products[updatedItem.product_id]) {
// models.products[updatedItem.product_id] = updatedItem;
// return;
// }
//
// throw new Error("No record found to update");
// };
//
// export const remove = async (id: number): Promise<void> => {
// const record: Product = models.products[id];
//
// if (record) {
// delete models.products[id];
// return;
// }
//
// throw new Error("No record found to delete");
// };
/**
* Fetches and returns the products that the given vendor has price entries for
* @param id The id of the vendor to fetch the products for
*/
export const findByVendor = async (id: number): Promise<Products> => {
let conn;
let prodRows = [];
try {
conn = await pool.getConnection();
// Get the relevant product ids
let relevant_prod_ids = [];
const relevantProds = await conn.query('SELECT product_id FROM prices WHERE vendor_id = ? GROUP BY product_id', id);
for (let row in relevantProds) {
if (row !== 'meta') {
relevant_prod_ids.push(relevantProds[row].product_id);
}
}
// Fetch products
const rows = await conn.query('SELECT product_id, name, asin, is_active, short_description, long_description, image_guid, date_added, last_modified, manufacturer_id, selling_rank, category_id FROM products WHERE product_id IN (?)', [relevant_prod_ids]);
for (let row in rows) {
if (row !== 'meta') {
prodRows.push(rows[row]);
}
}
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return prodRows;
};
/**
* Makes a callout to a crawler instance to search for the requested product
* @param asin The amazon asin of the product to look for
*/
export const addNewProduct = async (asin: string): Promise<boolean> => {
try {
let options = {
host: 'crawl.p4ddy.com',
path: '/searchNew',
port: '443',
method: 'POST'
};
let req = http.request(options, res => {
return res.statusCode === 202;
});
req.write(JSON.stringify({
asin: asin,
key: process.env.CRAWLER_ACCESS_KEY
}));
req.end();
} catch (err) {
console.log(err);
throw(err);
}
return false;
};
Backend/src/models/users/session.interface.ts
+10
View File
@@ -0,0 +1,10 @@
export interface Session {
session_id: number;
session_key: string;
session_key_hash: string;
createdDate?: Date;
lastLogin?: Date;
validUntil?: Date;
validDays?: number;
last_IP: string;
}
Backend/src/models/users/user.interface.ts
+9
View File
@@ -0,0 +1,9 @@
export interface User {
user_id: number;
username: string;
email: string;
password_hash: string;
registration_date: Date;
last_login_date: Date;
is_admin: boolean;
}
Backend/src/models/users/users.interface.ts
+5
View File
@@ -0,0 +1,5 @@
import {User} from './user.interface';
export interface Users {
[key: number]: User;
}
Backend/src/models/users/users.router.ts
+113
View File
@@ -0,0 +1,113 @@
/**
* Required External Modules and Interfaces
*/
import express, {Request, Response} from 'express';
import * as UserService from './users.service';
import {User} from './user.interface';
import {Users} from './users.interface';
import {Session} from './session.interface';
/**
* Router Definition
*/
export const usersRouter = express.Router();
/**
* Controller Definitions
*/
// POST users/register
usersRouter.post('/register', async (req: Request, res: Response) => {
try {
const username: string = req.body.username;
const password: string = req.body.password;
const email: string = req.body.email;
const ip: string = req.connection.remoteAddress ?? '';
if (!username || !password || !email) {
// Missing
res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
return;
}
// Check if username and / or email are already used
const status = await UserService.checkUsernameAndEmail(username, email);
if (status.hasProblems) {
// Username and/or email are duplicates, return error
res.status(400).send(JSON.stringify({messages: status.messages, codes: status.codes}));
return;
}
// Create the user and a session
const session: Session = await UserService.createUser(username, password, email, ip);
// Send the session details back to the user
res.cookie('betterauth', JSON.stringify({
id: session.session_id,
key: session.session_key
}), {expires: new Date(Date.now() + 1000 * 60 * 60 * 24 * 30)}).sendStatus(201);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST users/login
usersRouter.post('/login', async (req: Request, res: Response) => {
try {
const username: string = req.body.username;
const password: string = req.body.password;
const ip: string = req.connection.remoteAddress ?? '';
if (!username || !password) {
// Missing
res.status(400).send(JSON.stringify({message: 'Missing parameters'}));
return;
}
// Update the user entry and create a session
const session: Session = await UserService.login(username, password, ip);
if (!session.session_id) {
// Error logging in, probably wrong username / password
res.status(401).send(JSON.stringify({messages: ['Wrong username and / or password'], codes: [1, 4]}));
return;
}
// Send the session details back to the user
res.cookie('betterauth', JSON.stringify({
id: session.session_id,
key: session.session_key
}), {expires: new Date(Date.now() + 1000 * 60 * 60 * 24 * 30)}).sendStatus(200);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// POST users/checkSessionValid
usersRouter.post('/checkSessionValid', async (req: Request, res: Response) => {
try {
const ip: string = req.connection.remoteAddress ?? '';
// Update the user entry and create a session
const user: User = await UserService.checkSessionWithCookie(req.cookies.betterauth, ip);
if (!user.user_id) {
// Error logging in, probably wrong username / password
res.status(401).send(JSON.stringify({messages: ['Invalid session'], codes: [5]}));
return;
}
// Send the session details back to the user
res.status(201).send(user);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/users/users.service.ts
+316
View File
@@ -0,0 +1,316 @@
import * as dotenv from 'dotenv';
import * as bcrypt from 'bcrypt';
import {Guid} from 'guid-typescript';
dotenv.config();
const mariadb = require('mariadb');
const pool = mariadb.createPool({
host: process.env.DB_HOST,
user: process.env.DB_USER,
password: process.env.DB_PASSWORD,
database: process.env.DB_DATABASE,
connectionLimit: 5
});
/**
* Data Model Interfaces
*/
import {User} from './user.interface';
import {Users} from './users.interface';
import {Session} from './session.interface';
/**
* Service Methods
*/
/**
* Creates a user record in the database, also creates a session. Returns the session if successful.
*/
export const createUser = async (username: string, password: string, email: string, ip: string): Promise<Session> => {
let conn;
try {
// Hash password and generate + hash session key
const pwHash = bcrypt.hashSync(password, 10);
const sessionKey = Guid.create().toString();
const sessionKeyHash = bcrypt.hashSync(sessionKey, 10);
// Create user entry in SQL
conn = await pool.getConnection();
const userQuery = 'INSERT INTO users (username, email, bcrypt_password_hash) VALUES (?, ?, ?) RETURNING user_id';
const userIdRes = await conn.query(userQuery, [username, email, pwHash]);
await conn.commit();
// Get user id of the created user
let userId: number = -1;
for (const row in userIdRes) {
if (row !== 'meta' && userIdRes[row].user_id != null) {
userId = userIdRes[row].user_id;
}
}
// Create session
const sessionQuery = 'INSERT INTO sessions (user_id, session_key_hash, createdDate, lastLogin, validUntil, validDays, last_IP) VALUES (?,?,NOW(),NOW(),DATE_ADD(NOW(), INTERVAL 30 DAY),30,?) RETURNING session_id';
const sessionIdRes = await conn.query(sessionQuery, [userId, sessionKeyHash, ip]);
await conn.commit();
// Get session id of the created session
let sessionId: number = -1;
for (const row in sessionIdRes) {
if (row !== 'meta' && sessionIdRes[row].session_id != null) {
sessionId = sessionIdRes[row].session_id;
}
}
return {
session_id: sessionId,
session_key: sessionKey,
session_key_hash: 'HIDDEN',
last_IP: ip
};
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return {} as Session;
};
/**
* Checks if the given credentials are valid and creates a new session if they are.
* Returns the session information in case of a successful login
*/
export const login = async (username: string, password: string, ip: string): Promise<Session> => {
let conn;
try {
// Get saved password hash
conn = await pool.getConnection();
const query = 'SELECT user_id, bcrypt_password_hash FROM users WHERE username = ?';
const userRows = await conn.query(query, username);
let savedHash = '';
let userId = -1;
for (const row in userRows) {
if (row !== 'meta' && userRows[row].user_id != null) {
savedHash = userRows[row].bcrypt_password_hash;
userId = userRows[row].user_id;
}
}
// Check for correct password
if (!bcrypt.compareSync(password, savedHash)) {
// Wrong password, return invalid
return {} as Session;
}
// Password is valid, continue
// Generate + hash session key
const sessionKey = Guid.create().toString();
const sessionKeyHash = bcrypt.hashSync(sessionKey, 10);
// Update user entry in SQL
const userQuery = 'UPDATE users SET last_login_date = NOW()';
const userIdRes = await conn.query(userQuery);
await conn.commit();
// Create session
const sessionQuery = 'INSERT INTO sessions (user_id, session_key_hash, createdDate, lastLogin, validUntil, validDays, last_IP) VALUES (?,?,NOW(),NOW(),DATE_ADD(NOW(), INTERVAL 30 DAY),30,?) RETURNING session_id';
const sessionIdRes = await conn.query(sessionQuery, [userId, sessionKeyHash, ip]);
await conn.commit();
// Get session id of the created session
let sessionId: number = -1;
for (const row in sessionIdRes) {
if (row !== 'meta' && sessionIdRes[row].session_id != null) {
sessionId = sessionIdRes[row].session_id;
}
}
return {
session_id: sessionId,
session_key: sessionKey,
session_key_hash: 'HIDDEN',
last_IP: ip
};
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return {} as Session;
};
/**
* Checks if the given session information are valid and returns the user information if they are
*/
export const checkSession = async (sessionId: string, sessionKey: string, ip: string): Promise<User> => {
let conn;
try {
// Get saved session key hash
conn = await pool.getConnection();
const query = 'SELECT user_id, session_key_hash, validUntil FROM sessions WHERE session_id = ?';
const sessionRows = await conn.query(query, sessionId);
let savedHash = '';
let userId = -1;
let validUntil = new Date();
for (const row in sessionRows) {
if (row !== 'meta' && sessionRows[row].user_id != null) {
savedHash = sessionRows[row].session_key_hash;
userId = sessionRows[row].user_id;
validUntil = sessionRows[row].validUntil;
}
}
// Check for correct key
if (!bcrypt.compareSync(sessionKey, savedHash)) {
// Wrong key, return invalid
return {} as User;
}
// Key is valid, continue
// Check if the session is still valid
if (validUntil <= new Date()) {
// Session expired, return invalid
return {} as User;
}
// Session still valid, continue
// Update session entry in SQL
const updateSessionsQuery = 'UPDATE sessions SET lastLogin = NOW(), last_IP = ? WHERE session_id = ?';
const updateUsersQuery = 'UPDATE users SET last_login_date = NOW() WHERE user_id = ?';
const userIdRes = await conn.query(updateSessionsQuery, [ip, sessionId]);
await conn.query(updateUsersQuery, userId);
await conn.commit();
// Get the other required user information and update the user
const userQuery = 'SELECT user_id, username, email, registration_date, last_login_date, is_admin FROM users WHERE user_id = ?';
const userRows = await conn.query(userQuery, userId);
let username = '';
let email = '';
let registrationDate = new Date();
let lastLoginDate = new Date();
let is_admin = false;
for (const row in userRows) {
if (row !== 'meta' && userRows[row].user_id != null) {
username = userRows[row].username;
email = userRows[row].email;
registrationDate = userRows[row].registration_date;
lastLoginDate = userRows[row].last_login_date;
is_admin = userRows[row].is_admin;
}
}
// Everything is fine, return user information
return {
user_id: userId,
username: username,
email: email,
password_hash: 'HIDDEN',
registration_date: registrationDate,
last_login_date: lastLoginDate,
is_admin: is_admin
};
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
/**
* Calls the checkSession method after extracting the required information from the authentication cookie
* @param cookie The betterauth cookie
* @param ip The users IP address
*/
export const checkSessionWithCookie = async (cookie: any, ip: string): Promise<User> => {
const parsedCookie = JSON.parse(cookie);
const session_id = parsedCookie.id;
const session_key = parsedCookie.key;
return checkSession(session_id, session_key, '');
};
/**
* Used in the checkUsernameAndEmail method as return value
*/
export interface Status {
hasProblems: boolean;
messages: string[];
codes: number[]; // 0 = all good, 1 = wrong username, 2 = wrong email, 3 = server error, 4 = wrong password, 5 = wrong session
}
/**
* Checks if the given username and email are not used yet by another user
* @param username The username to check
* @param email The email to check
*/
export const checkUsernameAndEmail = async (username: string, email: string): Promise<Status> => {
let conn;
try {
// Create user entry in SQL
conn = await pool.getConnection();
const usernameQuery = 'SELECT username FROM users WHERE username = ?';
const emailQuery = 'SELECT email FROM users WHERE email = ?';
const usernameRes = await conn.query(usernameQuery, username);
const emailRes = await conn.query(emailQuery, email);
let res: Status = {
hasProblems: false,
messages: [],
codes: []
};
const usernameRegex = RegExp('^[a-zA-Z0-9\\-\\_]{4,20}$'); // Can contain a-z, A-Z, 0-9, -, _ and has to be 4-20 chars long
if (!usernameRegex.test(username)) {
// Username doesn't match requirements
res.hasProblems = true;
res.messages.push('Invalid username');
res.codes.push(1);
}
const emailRegex = RegExp('^[a-zA-Z0-9\\-\\_.]{1,30}\\@[a-zA-Z0-9\\-.]{1,20}\\.[a-z]{1,20}$'); // Normal email regex, user@betterzon.xyz
if (!emailRegex.test(email)) {
// Username doesn't match requirements
res.hasProblems = true;
res.messages.push('Invalid email');
res.codes.push(2);
}
if (usernameRes.length > 0) {
// Username is a duplicate
res.hasProblems = true;
res.messages.push('Duplicate username');
res.codes.push(1);
}
if (emailRes.length > 0) {
// Email is a duplicate
res.hasProblems = true;
res.messages.push('Duplicate email');
res.codes.push(2);
}
return res;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
};
Backend/src/models/vendors/vendors.router.ts
Vendored
+92 -47
View File
@@ -6,6 +6,7 @@ import express, {Request, Response} from 'express';
import * as VendorService from './vendors.service';
import {Vendor} from './vendor.interface';
import {Vendors} from './vendors.interface';
import * as UserService from '../users/users.service';
/**
@@ -19,20 +20,35 @@ export const vendorsRouter = express.Router();
* Controller Definitions
*/
// GET items/
// GET vendors/
vendorsRouter.get('/', async (req: Request, res: Response) => {
try {
const vendors: Vendors = await VendorService.findAll();
res.status(200).send(vendors);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET items/:id
// GET vendors/managed
vendorsRouter.get('/managed', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
const vendors = await VendorService.getManagedShops(user.user_id);
res.status(200).send(vendors);
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET vendors/:id
vendorsRouter.get('/:id', async (req: Request, res: Response) => {
const id: number = parseInt(req.params.id, 10);
@@ -46,12 +62,12 @@ vendorsRouter.get('/:id', async (req: Request, res: Response) => {
res.status(200).send(vendor);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// GET items/:name
// GET vendors/search/:term
vendorsRouter.get('/search/:term', async (req: Request, res: Response) => {
const term: string = req.params.term;
@@ -65,48 +81,77 @@ vendorsRouter.get('/search/:term', async (req: Request, res: Response) => {
res.status(200).send(vendors);
} catch (e) {
res.status(404).send(e.message);
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// PUT vendors/manage/deactivatelisting
vendorsRouter.put('/manage/deactivatelisting', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// POST items/
// Get required parameters
const vendor_id = req.body.vendor_id;
const product_id = req.body.product_id;
// vendorsRouter.post('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.create(category);
//
// res.sendStatus(201);
// } catch (e) {
// res.status(404).send(e.message);
// }
// });
//
// // PUT items/
//
// vendorsRouter.put('/', async (req: Request, res: Response) => {
// try {
// const category: Category = req.body.category;
//
// await CategoryService.update(category);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
//
// // DELETE items/:id
//
// vendorsRouter.delete('/:id', async (req: Request, res: Response) => {
// try {
// const id: number = parseInt(req.params.id, 10);
// await CategoryService.remove(id);
//
// res.sendStatus(200);
// } catch (e) {
// res.status(500).send(e.message);
// }
// });
const success = await VendorService.deactivateListing(user.user_id, vendor_id, product_id);
if (success) {
res.sendStatus(200);
} else {
res.sendStatus(500);
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// PUT vendors/manage/shop/deactivate/:id
vendorsRouter.put('/manage/shop/deactivate/:id', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get required parameters
const vendor_id = parseInt(req.params.id, 10);
const success = await VendorService.setShopStatus(user.user_id, vendor_id, false);
if (success) {
res.sendStatus(200);
} else {
res.sendStatus(500);
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
// PUT vendors/manage/shop/activate/:id
vendorsRouter.put('/manage/shop/activate/:id', async (req: Request, res: Response) => {
try {
// Authenticate user
const user_ip = req.connection.remoteAddress ?? '';
const user = await UserService.checkSessionWithCookie(req.cookies.betterauth, user_ip);
// Get required parameters
const vendor_id = parseInt(req.params.id, 10);
const success = await VendorService.setShopStatus(user.user_id, vendor_id, true);
if (success) {
res.sendStatus(200);
} else {
res.sendStatus(500);
}
} catch (e) {
console.log('Error handling a request: ' + e.message);
res.status(500).send(JSON.stringify({'message': 'Internal Server Error. Try again later.'}));
}
});
Backend/src/models/vendors/vendors.service.ts
Vendored
+104 -35
View File
@@ -17,18 +17,22 @@ const pool = mariadb.createPool({
import {Vendor} from './vendor.interface';
import {Vendors} from './vendors.interface';
import {User} from '../users/user.interface';
/**
* Service Methods
*/
/**
* Fetches and returns all known vendors
*/
export const findAll = async (): Promise<Vendors> => {
let conn;
let vendorRows = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors');
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE isActive = true');
for (let row in rows) {
if (row !== 'meta') {
let vendor: Vendor = {
@@ -66,12 +70,16 @@ export const findAll = async (): Promise<Vendors> => {
return vendorRows;
};
/**
* Fetches and returns the vendor with the specified id
* @param id The id of the vendor to fetch
*/
export const find = async (id: number): Promise<Vendor> => {
let conn;
let vendor: any;
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE vendor_id = ?', id);
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE vendor_id = ? AND isActive = true', id);
for (let row in rows) {
if (row !== 'meta') {
vendor = rows[row];
@@ -89,13 +97,17 @@ export const find = async (id: number): Promise<Vendor> => {
return vendor;
};
/**
* Fetches and returns all vendors that match the search term
* @param term the term to match
*/
export const findBySearchTerm = async (term: string): Promise<Vendors> => {
let conn;
let vendorRows = [];
try {
conn = await pool.getConnection();
term = '%' + term + '%';
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE name LIKE ?', term);
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE name LIKE ? AND isActive = true', term);
for (let row in rows) {
if (row !== 'meta') {
vendorRows.push(rows[row]);
@@ -113,35 +125,92 @@ export const findBySearchTerm = async (term: string): Promise<Vendors> => {
return vendorRows;
};
// export const create = async (newItem: Product): Promise<void> => {
// let conn;
// try {
// conn = await pool.getConnection();
// await conn.query("");
//
// } catch (err) {
// throw err;
// } finally {
// if (conn) conn.end();
// }
// };
//
// export const update = async (updatedItem: Product): Promise<void> => {
// if (models.products[updatedItem.product_id]) {
// models.products[updatedItem.product_id] = updatedItem;
// return;
// }
//
// throw new Error("No record found to update");
// };
//
// export const remove = async (id: number): Promise<void> => {
// const record: Product = models.products[id];
//
// if (record) {
// delete models.products[id];
// return;
// }
//
// throw new Error("No record found to delete");
// };
/**
* Get all vendors that have the given user as admin
* @param user The user to return the managed shops for
*/
export const getManagedShops = async (user_id: number): Promise<Vendors> => {
let conn;
let vendorRows = [];
try {
conn = await pool.getConnection();
const rows = await conn.query('SELECT vendor_id, name, streetname, zip_code, city, country_code, phone, website FROM vendors WHERE admin_id LIKE ?', user_id);
for (let row in rows) {
if (row !== 'meta') {
vendorRows.push(rows[row]);
}
}
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return vendorRows;
};
/**
* Deactivates a product listing for a specific vendor
* @param user_id The user id of the issuing user
* @param vendor_id The vendor id of the vendor to deactivate the listing for
* @param product_id The product id of the product to deactivate the listing for
*/
export const deactivateListing = async (user_id: number, vendor_id: number, product_id: number): Promise<Boolean> => {
let conn;
try {
conn = await pool.getConnection();
// Check if the user is authorized to manage the requested vendor
const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
if (user_vendor_rows.length !== 1) {
return false;
}
const status = await conn.query('UPDATE prices SET active_listing = false WHERE vendor_id = ? and product_id = ?', [vendor_id, product_id]);
return status.affectedRows > 0;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return false;
};
/**
* Set the specified shop to either active or not active
* @param user_id The user id of the issuing user
* @param vendor_id The vendor id of the shop to update
* @param isActive The new active state
*/
export const setShopStatus = async (user_id: number, vendor_id: number, isActive: boolean): Promise<Boolean> => {
let conn;
try {
conn = await pool.getConnection();
// Check if the user is authorized to manage the requested vendor
const user_vendor_rows = await conn.query('SELECT vendor_id FROM vendors WHERE vendor_id = ? AND admin_id = ?', [vendor_id, user_id]);
if (user_vendor_rows.length !== 1) {
return false;
}
// Update the vendor state
const status = await conn.query('UPDATE vendors SET isActive = ? WHERE vendor_id = ?', [isActive, vendor_id]);
return status.affectedRows > 0;
} catch (err) {
throw err;
} finally {
if (conn) {
conn.end();
}
}
return false;
};