2021-06-23 22:21:05 +03:00

341 lines
11 KiB
TypeScript

import {MongoClient} from 'mongodb'
import crypto from "crypto"
import config from '../../config/config'
const url = config.mongodb_url;
const options = {
useNewUrlParser: true,
useUnifiedTopology: true
};
const db_main = 'Scenery';
const client = new MongoClient(url, options);
client.connect(function(err) {
if (err) {
console.log(err)
} else {
console.log("Connected successfully to db server")
}
});
//////////////////////////////////////////////////////////////////////////////////////////////////
interface Image{
id:number,
description:string
source_url:string,
file_ext:string,
width:number,
height:number,
author:string,
size:number,
tags:Array<string>,
sha256:string,
}
//////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////COLLECTIONS
const IMAGES_COLLECTION=client.db(db_main).collection("images")
const USERS_COLLECTION=client.db(db_main).collection("users")
const NOT_ACTIVATED_USERS_COLLECTION=client.db(db_main).collection("not_activated_users")
const PASSWORD_RECOVERY_COLLECTION=client.db(db_main).collection("password_recovery")
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////CREATE INDEXES
client.db(db_main).collection("images").createIndex({"id": 1}, {unique: true})
client.db(db_main).collection("images").createIndex({"sha256": 1}, {unique: true})
client.db(db_main).collection("images").createIndex({"tags": 1})
client.db(db_main).collection("not_activated_users").createIndex({"createdAt": 1}, {expireAfterSeconds: 86400})
client.db(db_main).collection("password_recovery").createIndex({"createdAt": 1}, {expireAfterSeconds: 86400})
////////////////////////////////////////////////////////////////////////////////////////////////////////////////
async function generate_id() {
const id:Promise<string> = new Promise((resolve, reject) => {
crypto.randomBytes(32, async function(ex, buffer) {
if (ex) {
reject("error");
}
const id = buffer.toString("base64").replace(/\/|=|[+]/g, '')
const user = await find_user_by_id(id) //check if id exists
if (user) {
resolve(id)
} else {
const id_1 = await generate_id()
resolve(id_1)
}
});
});
return id;
}
/////////////////////////////////////////////////////////////////////////////////////IMAGES OPS
async function get_number_of_images_returned_by_search_query(query:Record<string,unknown>){
return IMAGES_COLLECTION.countDocuments(query)
}
async function batch_find_images(query:Record<string,unknown>,skip:number,limit:number){
const data = IMAGES_COLLECTION.find(query).sort({"$natural":-1}).skip(skip).limit(limit).project({_id:0}).toArray()
return data
}
async function check_if_image_exists_by_id(id:number){
return Boolean(IMAGES_COLLECTION.countDocuments({id:id},{limit:1}))
}
async function set_tags_to_image_by_id(id:number,tags:string[]){
await IMAGES_COLLECTION.updateOne({id:id}, { $set: {tags:tags}})
}
async function add_tags_to_image_by_id(id:number,tags:string[]){
await IMAGES_COLLECTION.updateOne({id:id}, { $addToSet: {tags:{ $each:tags}}})
}
async function update_image_data_by_id(id:number,update:Record<string,unknown>){
return IMAGES_COLLECTION.updateOne({id: id}, { $set: update })
}
async function get_all_images(){
const imgs = IMAGES_COLLECTION.find({}).project({_id:0}).toArray()
return imgs
}
async function get_image_file_extension_by_id(id:number){
const img = IMAGES_COLLECTION.find({id: id}).project({file_ext:1,_id:0}).next()
return img
}
async function find_images_by_tags(query:Record<string,unknown>){
const imgs = IMAGES_COLLECTION.find(query).project({_id:0}).toArray()
return imgs
}
async function find_image_by_sha256(hash:string){
const img = IMAGES_COLLECTION.find({sha256: hash}).project({_id:0}).next()
return img
}
async function find_image_by_id(id:number){
const img = IMAGES_COLLECTION.find({id: id}).project({_id:0}).next()
return img
}
async function get_max_image_id(){
const result:Image = await IMAGES_COLLECTION.find({}).sort({id:-1}).limit(1).next()
return result?.id||0
}
async function delete_image_by_id(id:number){
return IMAGES_COLLECTION.deleteOne({id:id})
}
async function add_image(img:Image){
const image={
id:img.id,
file_ext:img.file_ext,
created_at: new Date(),
width:img.width,
height:img.height,
author: img.author,
description:img.description,
size:img.size,
sha256:img.sha256,
tags:img.tags,
source_url:img.source_url
}
IMAGES_COLLECTION.insertOne(image)
}
async function add_image_by_object(image:any){
return IMAGES_COLLECTION.insertOne(image)
}
async function get_number_of_unique_tags(){
return (await IMAGES_COLLECTION.distinct("tags")).length
}
async function get_number_of_unique_authors(){
return (await IMAGES_COLLECTION.distinct("author")).length
}
async function get_tags_stats() {
const x = IMAGES_COLLECTION.aggregate([
{ $unwind: "$tags" },
{
$group: {
_id: { $toLower: '$tags' },
count: { $sum: 1 }
}
},
{
$sort: { _id: 1 }
}
]);
return x.toArray()
}
async function get_image_tags_by_id(image_id:number){
const data = IMAGES_COLLECTION.find({id:image_id}).project({_id:0,tags:1}).next()
return data
}
async function get_images_with_similar_tags(image_id:number,limit:number){
const target_tags= (await get_image_tags_by_id(image_id)).tags
const x = IMAGES_COLLECTION.aggregate([
{ $unwind: "$tags" },
{ $match: { tags: { $in: target_tags } } },
{ $group: { _id: {id:"$id",height:"$height",width:"$width"}, count: { $sum: 1 }} },
{ $sort: { count: -1 } },
{$limit:limit}
]);
return x.toArray()
}
/////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////PASSWORD RECOVERY
async function update_user_password_by_id(id:string,password:string):Promise<void> {
USERS_COLLECTION.updateOne({id: id}, { $set: {password:password} })
}
async function delete_password_recovery_token(token:string):Promise<void> {
PASSWORD_RECOVERY_COLLECTION.deleteOne({token: token})
}
async function save_password_recovery_token(token:string, user_id:string):Promise<void> {
PASSWORD_RECOVERY_COLLECTION.insertOne({
"createdAt": new Date(),
token: token,
user_id: user_id,
})
}
async function find_user_id_by_password_recovery_token(token:string) {
const user = PASSWORD_RECOVERY_COLLECTION.find({token: token}).limit(1).project({_id:0}).next()
return user
}
////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////ACTIVATED USER
async function check_if_user_exists_by_id(id:number){
return Boolean(USERS_COLLECTION.countDocuments({id:id},{limit:1}))
}
async function check_if_user_exists_by_email(email:string){
return Boolean(USERS_COLLECTION.countDocuments({email:email},{limit:1}))
}
async function find_user_by_email(email:string) {
const user = USERS_COLLECTION.find({email: email}).limit(1).project({_id:0}).next()
return user
}
async function find_user_by_oauth_id(oauth_id:string) {
const user = USERS_COLLECTION.find({oauth_id: oauth_id}).limit(1).project({_id:0}).next()
return user
}
async function find_user_by_id(id:string) {
const user = USERS_COLLECTION.find({id: id}).limit(1).project({_id:0}).next()
return user
}
async function create_new_user_activated(email:string, pass:string) {
const id=await generate_id()
const user={
email: email,
id: id,
password: pass,
username:"",
links:0,
activated: true
}
IMAGES_COLLECTION.insertOne(user)
}
async function create_new_user_activated_github(oauth_id:string) {
const id=await generate_id()
USERS_COLLECTION.insertOne({
oauth_id: oauth_id,
id: id,
username:"",
links:0,
activated: true
})
return id
}
async function create_new_user_activated_google(oauth_id:string,email:string) {
const id=await generate_id()
USERS_COLLECTION.insertOne({
oauth_id: oauth_id,
email_google:email,
id: id,
username:"",
links:0,
activated: true
})
return id
}
//////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////NOT ACTIVATED USER
async function find_not_activated_user_by_token(token:string) {
const user = NOT_ACTIVATED_USERS_COLLECTION.find({token: token}).limit(1).project({_id:0}).next()
return user
}
async function delete_not_activated_user_by_token(token:string) {
NOT_ACTIVATED_USERS_COLLECTION.deleteOne({token:token})
}
async function create_new_user_not_activated(email:string, pass:string, token:string) {
NOT_ACTIVATED_USERS_COLLECTION.insertOne({
"createdAt": new Date(),
email: email,
token: token,
password: pass,
activated: false
})
}
////////////////////////////////////////////////////////////////////////////////
// async function test(){
// const x =await find_image_by_id(3)
// console.log(x)
// }
// test()
export default {
image_ops: {
get_tags_stats,
set_tags_to_image_by_id,
get_images_with_similar_tags,
get_number_of_unique_tags,
get_number_of_unique_authors,
get_number_of_images_returned_by_search_query,
batch_find_images,
add_image,
add_image_by_object,
get_all_images,
find_image_by_id,
get_max_image_id,
delete_image_by_id,
find_images_by_tags,
get_image_file_extension_by_id,
find_image_by_sha256,
check_if_image_exists_by_id,
update_image_data_by_id,
add_tags_to_image_by_id,
},
password_recovery:{
update_user_password_by_id,
delete_password_recovery_token,
save_password_recovery_token,
find_user_id_by_password_recovery_token
},
activated_user:{
check_if_user_exists_by_id,
check_if_user_exists_by_email,
find_user_by_email,
find_user_by_oauth_id,
find_user_by_id,
create_new_user_activated,
create_new_user_activated_github,
create_new_user_activated_google,
},
not_activated_user:{
find_not_activated_user_by_token,
delete_not_activated_user_by_token,
create_new_user_not_activated
}
}