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Redo tracker scraping, index generation

Browse Source 
Seed/leech counts are fetched from all trackers for every torrent and
data from the tracker with most seeds for a given torrent is used.

I also got rid of SQLite which was previously used for generating
the index. It was replaced by a simple CSV file.  KISS

Some minor bugfixes and tweaks also included (sorry for not breaking
them up into more commits).
pull/5/head
Urban Guacamole 5 years ago
parent 70f4849111
commit 330f426b81
10 changed files with 142 additions and 1023 deletions
Show Stats Download Patch File Download Diff File

4
.gitignore vendored
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@ -1,9 +1,7 @@
generated/
node_modules/
db.sqlite3
dump.sql
dump.csv
ipfs.html
about.html
copyright.html
torrent_dump_full.csv.gz
index-generator/main.js

31
README.md
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@ -1,14 +1,13 @@
# About
## What is this?
This is a repository of all the tools I use to build and run torrent-paradise.ml. Some people asked for a source, so I'm just putting this out here. I did make *some* effort to clean it up. The 'code name' of the project is nextgen (next gen torrent search), so don't be surprised if it comes up somewhere.
If you don't know what Torrent Paradise is, see the [website](https://torrent-paradise.ml/about.html).
This is a repository of all the tools I use to build and run torrent-paradise.ml. The 'code name' of the project is nextgen (next gen torrent search), so don't be surprised if it comes up somewhere.
## Can you help me?
Maybe, open an issue. Be sure to demonstrate an effort that you tried to solve the problem yourself.
## This is a big mess. Fix it maybe?
WIP ❤️
# Setup
Here's what the setup looks like rn:
@ -24,30 +23,28 @@ Here's what the setup looks like rn:
- user with username nextgen on the server
- my laptop w/ Linux
- Go toolchain installed
- node v10.9.0 & npm
Schema for the database is sth like this (taken from index-generator/README, runs on sqlite, probably also on pg.)
```sql
CREATE TABLE peercount ( infohash char(40), tracker varchar, seeders int, leechers int, completed int, scraped timestamp);
CREATE TABLE torrent( infohash char(40), name varchar, length bigint, added timestamp);
```
- node v10.15 & npm
- Python 3 (required only for index-generator/fix-metajson.py)
The programs create their own tables in the DB that they need. Database name is "nextgen".
What I did first after getting the server up and running was importing the TPB dump. Download https://thepiratebay.org/static/dump/csv/torrent_dump_full.csv.gz to the import-tpb-dump directory and run `go run`.
I probably forgot sth. Open an issue!
# Usage
## Generate the index
This is a half-broken process that is partially described in update-index.sh. Read the script to understand what it does.
See `update-index.sh`. Before running it for the first time, you should create the materialized view *fresh*. For instructions, see the first paragraph of snippets.sql.
## Spider the DHT
Run `go build` in spider/ to compile and scp the binary it to the server. You can use the systemd service file in `spider/spider.service` to start the spider on boot.
Run `go build` in spider/ to compile and scp the binary it to the server. You can use the systemd service file in `spider/spider.service` to start the spider on server boot.
## Scraping trackers for seed/leech data
Run `go build` in tracker-scraper/ to compile and scp the binary it to the server. Run it every time you want to fetch new seed/leech data for all torrents.
`tracker-scraper` saves the results into the *trackerdata* table in database.
# Contributing

23
index-generator/README
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Takes a sqlite DB (export of postgres that is used by spider, tracker-scraper and import-tpb-dump) and generates the index, using the ipfsearch-index library.
Getting sqlite dump from the postgres:
nextgen@ipfsearch: ~$ pg_dump --data-only --inserts nextgen > dump.sql
# remove header from dump (manually)
sed -i -e 's/public.peercount/peercount/g' dump.sql
sed -i -e 's/public.torrent/torrent/g' dump.sql
tail -n +2 dump.sql > newdump.sql
mv newdump.sql dump.sql
gzip dump.sql
# copy dump.sql.gz to index-generator directory, unzip
user@localhost $ scp user@server:/home/nextgen/dump.sql.gz .
$ sqlite3 db.sqlite3
sqlite> CREATE TABLE peercount ( infohash char(40), tracker varchar, seeders int, leechers int, completed int, scraped timestamp);
sqlite> CREATE TABLE torrent( infohash char(40), name varchar, length bigint, added timestamp);
sqlite> BEGIN;
sqlite> .read dump.sql
sqlite> END;

4
index-generator/fix-metajson.py
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@ -19,7 +19,7 @@ def count_torrents_in_index(inxpath, blocksize):
meta = json.load(io.open(sys.argv[1]+".meta.json","r"))
meta["resultPage"] = "resultpage"
meta["entries"] = count_torrents_in_index(sys.argv[1],1000)
meta["inxUrlBase"] = "website/generated/inx"
meta["invUrlBase"] = "website/generated/inv"
meta["inxURLBase"] = "generated/inx"
meta["invURLBase"] = "generated/inv"
json.dump(meta,io.open(sys.argv[1]+".meta.json", "w"))

44
index-generator/main.ts
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const ipfsearch = require("ipfsearch-index")
const sqlite3 = require('sqlite3')
const db = new sqlite3.Database('db.sqlite3');
const parse = require("csv-parse")
const fs = require("fs")
let indexer = new ipfsearch.Indexer()
let i = 0
db.each("SELECT torrent.infohash, torrent.name, torrent.length, torrent.added, peercount.seeders, peercount.leechers, peercount.completed FROM torrent INNER JOIN peercount on torrent.infohash = peercount.infohash ORDER BY peercount.scraped DESC", function(err, row){
if(err) console.error(err)
if(row["seeders"] > 0){
indexer.addToIndex(new Torrent(row["infohash"], row["name"], row["length"], row["seeders"], row["leechers"], row["completed"]))
const parser = parse()
fs.createReadStream("dump.csv").pipe(parser)
parser.on('readable', function () {
let record
while (record = parser.read()) {
if (parseInt(record[3]) > 0) {
indexer.addToIndex(new Torrent(record[0], record[1], parseInt(record[2]), parseInt(record[3]), parseInt(record[4]), parseInt(record[5])))
i++
}
}
i++
},function(err,num){
console.log("Read all "+i+" records.")
console.log("Persisting "+num+" records.")
indexer.persist("generated/inv", "generated/inx", "", "Torrent Paradise torrent index","todo", 1000)
})
parser.on('error', function (err) {
console.error(err.message)
})
parser.on('end', function () {
console.log("Read all " + i + " records. Persisting.");
indexer.persist("../website/generated/inv", "../website/generated/inx", "Urban Guacamole", "Torrent Paradise index", "", 1000);
})
class Torrent extends ipfsearch.Document {
len: number
s : number
l : number
c : number
s: number
l: number
c: number
constructor(id : string, text : string, size : number, seeders : number, leechers : number, completed : number){
super(id,text)
constructor(id: string, text: string, size: number, seeders: number, leechers: number, completed: number) {
super(id, text)
this.len = size
this.s = seeders
this.l = leechers

935
index-generator/package-lock.json generated
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@ -5,933 +5,24 @@
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9
index-generator/package.json
Unescape Escape View File

@ -4,11 +4,10 @@
"description": "",
"main": "main.js",
"dependencies": {
"@types/node": "^10.12.18",
"ipfsearch-index": "^2.5.1",
"pg": "^7.8.0",
"sqlite3": "^4.0.6",
"typescript": "^3.2.2"
"@types/node": "^10.12.29",
"csv-parse": "^4.3.3",
"ipfsearch-index": "^2.5.5",
"typescript": "^3.3.3333"
},
"devDependencies": {},
"scripts": {

17
snippets.sql
Unescape Escape View File

@ -0,0 +1,17 @@
-- SELECT for the index-ready materialized view "fresh"
select distinct on (infohash) trackerdata.infohash, torrent.name, torrent.length, seeders, leechers, completed, tracker from trackerdata inner join torrent on (trackerdata.infohash = torrent.infohash) order by infohash, scraped asc, seeders desc;
-- to create this view, run: create materialized view AS (paste from above)
select sum(seeders),tracker from trackerdata group by tracker;
get highest seed/leech count found for every torrent, using data from tracker with most seeds
select distinct on (infohash) infohash, seeders, leechers, completed, tracker from trackerdata where completed != 0 order by infohash, scraped asc, seeders desc;
generate top 100 by seeders:
select * from (select distinct on (trackerdata.infohash) trackerdata.infohash, torrent.name, seeders, leechers from trackerdata inner join torrent on (trackerdata.infohash = torrent.infohash) where completed != 0 order by infohash, seeders desc) as subquery order by seeders desc limit 100;
SELECT added::date, count(infohash)
from torrent where added > '2019-01-15'::date
group by added::date order by count desc;

75
tracker-scraper/tracker-scraper.go
Unescape Escape View File

@ -4,28 +4,47 @@ import (
"database/sql"
"log"
"strconv"
"sync/atomic"
"time"
"github.com/etix/goscrape"
_ "github.com/lib/pq"
)
const retryLimit = 10
const retryLimit = 3
const waitTime = 500 // in ms
var trackers = [4]string{"udp://tracker.coppersurfer.tk:6969", "udp://tracker.internetwarriors.net:1337", "udp://tracker.opentrackr.org:1337", "udp://tracker.pirateparty.gr:6969/announce"}
var trackers = [3]string{"udp://tracker.coppersurfer.tk:6969", "udp://tracker.internetwarriors.net:1337", "udp://tracker.pirateparty.gr:6969"}
func main() {
db := initDb()
trackerResponses := make(chan trackerResponse, 100)
trackerRequests := make(chan []string, 1000)
trackerRequests := make(map[string]chan []string)
var counter uint64 //count of torrents scraped
quitCounter := make(chan bool)
go func() {
for {
select {
case <-quitCounter:
return
default:
log.Println("Torrents scraped so far: " + strconv.Itoa(int(atomic.LoadUint64(&counter))))
time.Sleep(2 * time.Second)
}
}
}()
for _, tracker := range trackers {
go runScraper(trackerRequests, trackerResponses, tracker, waitTime)
trackerRequests[tracker] = make(chan []string, 1000)
go runScraper(trackerRequests[tracker], trackerResponses, tracker, waitTime, &counter)
}
go runPersister(trackerResponses, db)
datestamp := time.Now().Local().Format("2006-01-02")
go runPersister(trackerResponses, db, datestamp)
rows, err := db.Query("SELECT infohash FROM torrent WHERE NOT EXISTS (SELECT FROM peercount WHERE infohash = torrent.infohash)")
rows, err := db.Query("SELECT infohash FROM torrent WHERE NOT EXISTS (SELECT FROM trackerdata WHERE infohash = torrent.infohash AND scraped = '" + datestamp + "')")
if err != nil {
log.Fatal(err)
}
@ -39,16 +58,32 @@ func main() {
if len(infohashes) < 74 {
infohashes = append(infohashes, infohash)
} else {
trackerRequests <- infohashes
for _, tracker := range trackers {
trackerRequests[tracker] <- infohashes
}
infohashes = []string{}
}
}
trackerRequests <- infohashes
for _, tracker := range trackers {
trackerRequests[tracker] <- infohashes
}
quitCounter <- true
for len(trackerRequests) > 0 {
time.Sleep(2 * time.Second)
log.Println("Tracker requests left to send: " + strconv.Itoa(len(trackerRequests)))
var left int
for i, tracker := range trackers {
left = len(trackerRequests[tracker])
if left != 0 {
log.Println("Tracker " + strconv.Itoa(i) + " requests left to send: " + strconv.Itoa(len(trackerRequests[tracker])))
}
}
}
for _, tracker := range trackers {
close(trackerRequests[tracker])
}
close(trackerRequests)
for len(trackerResponses) > 0 {
time.Sleep(2 * time.Second)
@ -60,7 +95,7 @@ func main() {
//Runs a tracker that scrapes the given tracker. Takes requests from trackerRequests and sends responses to trackerResponses
//waittime is in miliseconds
func runScraper(trackerRequests chan []string, trackerResponses chan trackerResponse, tracker string, waittime int) {
func runScraper(trackerRequests chan []string, trackerResponses chan trackerResponse, tracker string, waittime int, counter *uint64) {
s, err := goscrape.New(tracker)
s.SetTimeout(time.Duration(waitTime) * time.Millisecond)
s.SetRetryLimit(retryLimit)
@ -79,6 +114,7 @@ func runScraper(trackerRequests chan []string, trackerResponses chan trackerResp
if err != nil {
log.Println(err)
} else {
atomic.AddUint64(counter, uint64(len(infohashes)))
trackerResponses <- trackerResponse{tracker, res}
}
@ -86,10 +122,10 @@ func runScraper(trackerRequests chan []string, trackerResponses chan trackerResp
}
}
func runPersister(trackerResponses chan trackerResponse, db *sql.DB) {
func runPersister(trackerResponses chan trackerResponse, db *sql.DB, datestamp string) {
for res := range trackerResponses {
for _, scrapeResult := range res.scrapeResult {
_, err := db.Exec("INSERT INTO peercount (infohash, tracker, seeders, leechers, completed) VALUES ($1, $2, $3, $4, $5)", scrapeResult.Infohash, res.tracker, scrapeResult.Seeders, scrapeResult.Leechers, scrapeResult.Completed)
_, err := db.Exec("INSERT INTO trackerdata (infohash, tracker, seeders, leechers, completed, scraped) VALUES ($1, $2, $3, $4, $5, $6)", scrapeResult.Infohash, res.tracker, scrapeResult.Seeders, scrapeResult.Leechers, scrapeResult.Completed, datestamp)
if err != nil {
log.Fatal(err)
}
@ -104,14 +140,19 @@ func initDb() *sql.DB {
log.Fatal(err)
}
_, err = db.Exec(`CREATE TABLE IF NOT EXISTS peercount (
/*_, err = db.Exec(`CREATE TYPE tracker AS ENUM ('udp://tracker.coppersurfer.tk:6969', 'udp://tracker.internetwarriors.net:1337', 'udp://tracker.opentrackr.org:1337', 'udp://tracker.pirateparty.gr:6969')`)
if err != nil {
log.Fatal(err)
}*/
_, err = db.Exec(`CREATE TABLE IF NOT EXISTS trackerdata (
infohash char(40),
tracker varchar,
tracker tracker,
seeders int NOT NULL,
leechers int NOT NULL,
completed int NOT NULL,
scraped timestamp DEFAULT current_timestamp,
PRIMARY KEY (infohash, tracker, scraped)
scraped char(10),
PRIMARY KEY (infohash, scraped, tracker)
)`)
if err != nil {
log.Fatal(err)

23
update-index.sh
Unescape Escape View File

@ -1,25 +1,14 @@
# This script updates the index. Testing and uploading to server/IPFS is done manually.
echo "Scraping trackers for seed/leech data"
mosh nextgen@server "~/tracker-scraper"
echo "Generating SQL dump"
ssh nextgen@server pg_dump --data-only --inserts nextgen > index-generator/dump.sql
mosh nextgen@server "~/tracker-scraper" # you can use ssh instead of mosh aswell
sed -i -e 's/public.peercount/peercount/g' index-generator/dump.sql
sed -i -e 's/public.torrent/torrent/g' index-generator/dump.sql
tail -n +21 index-generator/dump.sql > index-generator/newdump.sql # remove headers
mv index-generator/newdump.sql index-generator/dump.sql
rm index-generator/db.sqlite3
echo "Preparing sqlite DB"
sqlite3 index-generator/db.sqlite3 "CREATE TABLE peercount ( infohash char(40), tracker varchar, seeders int, leechers int, completed int, scraped timestamp, ws boolean);"
sqlite3 index-generator/db.sqlite3 "CREATE TABLE torrent( infohash char(40), name varchar, length bigint, added timestamp);"
echo """Do the following:
ssh nextgen@server "psql -c 'REFRESH MATERIALIZED VIEW fresh'"
echo "Generating index dump"
rm index-generator/dump.csv
ssh nextgen@server "psql -c '\copy (select * from fresh) to stdout with format csv'" > index-generator/dump.csv
sqlite> BEGIN;
sqlite> .read index-generator/dump.sql
sqlite> END;"""
sqlite3 index-generator/db.sqlite3
echo "Generating index now..."
(cd index-generator; node --max-old-space-size=10000 main.js)
python3 index-generator/fix-metajson.py website/generated/inx

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