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tracker.go
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/*===----------- tracker.go - tracking utility written in go -------------===
*
*
* This file is licensed under the Apache 2 License. See LICENSE for details.
*
* Copyright (c) 2018-2024 Andrew Grosser. All Rights Reserved.
*
* `...
* yNMMh`
* dMMMh`
* dMMMh`
* dMMMh`
* dMMMd`
* dMMMm.
* dMMMm.
* dMMMm. /hdy.
* ohs+` yMMMd. yMMM-
* .mMMm. yMMMm. oMMM/
* :MMMd` sMMMN. oMMMo
* +MMMd` oMMMN. oMMMy
* sMMMd` /MMMN. oMMMh
* sMMMd` /MMMN- oMMMd
* oMMMd` :NMMM- oMMMd
* /MMMd` -NMMM- oMMMm
* :MMMd` .mMMM- oMMMm`
* -NMMm. `mMMM: oMMMm`
* .mMMm. dMMM/ +MMMm`
* `hMMm. hMMM/ /MMMm`
* yMMm. yMMM/ /MMMm`
* oMMm. oMMMo -MMMN.
* +MMm. +MMMo .MMMN-
* +MMm. /MMMo .NMMN-
* ` +MMm. -MMMs .mMMN: `.-.
* /hys:` +MMN- -NMMy `hMMN: .yNNy
* :NMMMy` sMMM/ .NMMy yMMM+-dMMMo
* +NMMMh-hMMMo .mMMy +MMMmNMMMh`
* /dMMMNNMMMs .dMMd -MMMMMNm+`
* .+mMMMMMN: .mMMd `NMNmh/`
* `/yhhy: `dMMd /+:`
* `hMMm`
* `hMMm.
* .mMMm:
* :MMMd-
* -NMMh.
* ./:.
*
*===----------------------------------------------------------------------===
*/
package main
import (
"crypto/tls"
"database/sql"
"encoding/csv"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"math/rand"
"net"
"net/http"
"net/http/httputil"
"net/url"
"os"
"regexp"
"strconv"
"strings"
"time"
"github.com/ClickHouse/clickhouse-go/v2"
"github.com/aws/aws-sdk-go/service/s3"
lz4 "github.com/bkaradzic/go-lz4"
"github.com/gocql/gocql"
"github.com/google/uuid"
"github.com/gorilla/mux"
"github.com/gorilla/websocket"
"github.com/nats-io/nats.go"
"golang.org/x/crypto/acme/autocert"
)
var upgrader = websocket.Upgrader{
// Allow all connections for simplicity
CheckOrigin: func(r *http.Request) bool {
return true
},
}
// //////////////////////////////////////
// Get the system setup from the config.json file:
// //////////////////////////////////////
type session interface {
connect() error
close() error
prune() error
write(w *WriteArgs) error
listen() error
serve(w *http.ResponseWriter, r *http.Request, s *ServiceArgs) error
auth(s *ServiceArgs) error
}
type KeyValue struct {
Key string
Value interface{}
}
type Field struct {
Type string
Id string
Default string
DestParamHash string
}
type Query struct {
Statement string
QueryType string
Fields []Field
}
type Filter struct {
Type string
Alias string
Id string
Queries []Query
}
type Prune struct {
Table string
TTL int64
PageSize int
CFlagsIgnore []int64
ClearAll bool
ClearParams bool
ClearNumericParams bool
Fields []Field
}
type WriteArgs struct {
WriteType int
Values *map[string]interface{}
IsServer bool
SaveCookie bool
IP string
Browser string
Language string
URI string
Host string
EventID uuid.UUID
CallingService *Service
}
type ServiceArgs struct {
ServiceType int
Values *map[string]string
IsServer bool
IP string
Browser string
Language string
URI string
EventID uuid.UUID
}
type TableType uint64
const (
// Primary Event Tables
TABLE_EVENTS TableType = 1 << iota // 1 << 0 = 1
TABLE_EVENTS_RECENT // 1 << 1 = 2
// Session/Visitor Tables
TABLE_VISITORS // 1 << 2 = 4
TABLE_VISITORS_LATEST // 1 << 3 = 8
TABLE_SESSIONS // 1 << 4 = 16
// Tracking/Analytics Tables
TABLE_IPS // 1 << 5 = 32
TABLE_ROUTED // 1 << 6 = 64
TABLE_HITS // 1 << 7 = 128
TABLE_DAILIES // 1 << 8 = 256
TABLE_OUTCOMES // 1 << 9 = 512
TABLE_REFERRERS // 1 << 10 = 1024
TABLE_REFERRALS // 1 << 11 = 2048
TABLE_REFERRED // 1 << 12 = 4096
TABLE_HOSTS // 1 << 13 = 8192
TABLE_BROWSERS // 1 << 14 = 16384
TABLE_NODES // 1 << 15 = 32768
TABLE_LOCATIONS // 1 << 16 = 65536
TABLE_ALIASES // 1 << 17 = 131072
TABLE_USERS // 1 << 18 = 262144
TABLE_USERNAMES // 1 << 19 = 524288
TABLE_EMAILS // 1 << 20 = 1048576
TABLE_CELLS // 1 << 21 = 2097152
TABLE_REQS // 1 << 22 = 4194304
// LTV Related Tables
TABLE_LTV // 1 << 23 = 8388608
TABLE_LTVU // 1 << 24 = 16777216
TABLE_LTVV // 1 << 25 = 33554432
// Other Tables
TABLE_AGREEMENTS // 1 << 26 = 67108864
TABLE_AGREED // 1 << 27 = 134217728
TABLE_JURISDICTIONS // 1 << 28 = 268435456
TABLE_REDIRECTS // 1 << 29 = 536870912
TABLE_REDIRECT_HISTORY // 1 << 30 = 1073741824
TABLE_COUNTERS // 1 << 31 = 2147483648
TABLE_UPDATES // 1 << 32 = 4294967296
TABLE_LOGS // 1 << 33 = 8589934592
// Common Table Groups
TABLE_ALL_EVENTS = TABLE_EVENTS | TABLE_EVENTS_RECENT
TABLE_ALL_VISITORS = TABLE_VISITORS | TABLE_VISITORS_LATEST | TABLE_SESSIONS
TABLE_ALL_LTV = TABLE_LTV | TABLE_LTVU | TABLE_LTVV
TABLE_ALL_REDIRECTS = TABLE_REDIRECTS | TABLE_REDIRECT_HISTORY
TABLE_ALL = ^uint64(0)
TABLE_PROXY_DEFAULT = ^uint64(0) &^ uint64(TABLE_ALL_EVENTS|TABLE_UPDATES|TABLE_LOGS) //Default proxy tables, NO EVENTS, UPDATES, LOGS
)
// Helper methods for bitwise operations
func (t TableType) Has(table TableType) bool {
return t&table != 0
}
func (t TableType) Add(table TableType) TableType {
return t | table
}
func (t TableType) Remove(table TableType) TableType {
return t &^ table
}
// String returns the string representation of the table name
func (t TableType) String() string {
switch t {
// Primary Event Tables
case TABLE_EVENTS:
return "events"
case TABLE_EVENTS_RECENT:
return "events_recent"
// Session/Visitor Tables
case TABLE_VISITORS:
return "visitors"
case TABLE_VISITORS_LATEST:
return "visitors_latest"
case TABLE_SESSIONS:
return "sessions"
// Tracking/Analytics Tables
case TABLE_IPS:
return "ips"
case TABLE_ROUTED:
return "routed"
case TABLE_HITS:
return "hits"
case TABLE_DAILIES:
return "dailies"
case TABLE_OUTCOMES:
return "outcomes"
case TABLE_REFERRERS:
return "referrers"
case TABLE_REFERRALS:
return "referrals"
case TABLE_REFERRED:
return "referred"
case TABLE_HOSTS:
return "hosts"
case TABLE_BROWSERS:
return "browsers"
case TABLE_NODES:
return "nodes"
case TABLE_LOCATIONS:
return "locations"
case TABLE_ALIASES:
return "aliases"
case TABLE_USERS:
return "users"
case TABLE_USERNAMES:
return "usernames"
case TABLE_EMAILS:
return "emails"
case TABLE_CELLS:
return "cells"
case TABLE_REQS:
return "reqs"
// LTV Related Tables
case TABLE_LTV:
return "ltv"
case TABLE_LTVU:
return "ltvu"
case TABLE_LTVV:
return "ltvv"
// Other Tables
case TABLE_AGREEMENTS:
return "agreements"
case TABLE_AGREED:
return "agreed"
case TABLE_JURISDICTIONS:
return "jurisdictions"
case TABLE_REDIRECTS:
return "redirects"
case TABLE_REDIRECT_HISTORY:
return "redirect_history"
case TABLE_COUNTERS:
return "counters"
case TABLE_UPDATES:
return "updates"
case TABLE_LOGS:
return "logs"
default:
return "unknown"
}
}
type Service struct {
Service string
Hosts []string
CACert string
Cert string
Key string
Secure bool
Critical bool
Context string
Filter []Filter
Prune []Prune
Format string
MessageLimit int
ByteLimit int
Timeout time.Duration
Connections int
Retries int
AttemptAll bool
Consumer bool
Ephemeral bool
Note string
Session session
Skip bool
ProxyRealtimeStorageService *Service
ProxyRealtimeStorageServiceName string
ProxyRealtimeStorageServiceTables TableType
}
type ClickhouseService struct { //Implements 'session'
Configuration *Service
Session *clickhouse.Conn
AppConfig *Configuration
}
type DuckService struct { //Implements 'session'
Configuration *Service
Session *sql.DB
AppConfig *Configuration
HealthCheckTicker *time.Ticker
HealthCheckDone chan bool
S3Client *s3.S3
}
type CassandraService struct { //Implements 'session'
Configuration *Service
Session *gocql.Session
AppConfig *Configuration
}
type NatsService struct { //Implements 'session'
Configuration *Service
nc *nats.Conn
ec *nats.EncodedConn
AppConfig *Configuration
}
type FacebookService struct { //Implements 'session'
Configuration *Service
AppConfig *Configuration
}
type GeoIP struct {
IPStart string `json:"ips"`
IPEnd string `json:"ipe"`
CountryISO2 string `json:"iso2"`
Country string `json:"country"`
Region string `json:"region"`
City string `json:"city"`
Latitude float64 `json:"lat"`
Longitude float64 `json:"lon"`
Zip string `json:"zip"`
Timezone string `json:"tz"`
}
type Configuration struct {
ConfigFile string
Domains []string //Domains in Trust, LetsEncrypt domains
StaticDirectory string //Static FS Directory (./public/)
TempDirectory string
UseGeoIP bool
UseRegionDescriptions bool
UseRemoveIP bool
GeoIPVersion int
IPv4GeoIPZip string
IPv6GeoIPZip string
IPv4GeoIPCSVDest string
IPv6GeoIPCSVDest string
UseLocalTLS bool
IgnoreInsecureTLS bool
TLSCert string
TLSKey string
Notify []Service
Consume []Service
API Service
PrefixPrivateHash string
ProxyUrl string
ProxyUrlFilter string
IgnoreProxyOptions bool
ProxyForceJson bool
ProxyPort string
ProxyPortTLS string
ProxyExceptHTTP string
ProxyPortRedirect string
ProxyDailyLimit uint64
ProxyDailyLimitChecker string //Service, Ex. casssandra
ProxyDailyLimitCheck func(string) uint64
SchemaVersion int
ApiVersion int
CFlagsMarketing int64
CFlagsIgnore bool
Debug bool
UrlFilter string
UrlFilterMatchGroup int
AllowOrigin string
IsUrlFiltered bool
MaximumConnections int
ReadTimeoutSeconds int
ReadHeaderTimeoutSeconds int
WriteTimeoutSeconds int
IdleTimeoutSeconds int
MaxHeaderBytes int
DefaultRedirect string
IgnoreQueryParamsKey string
AccountHashMixer string
PruneLogsTTL int
PruneLogsOnly bool
PruneLogsSkip bool
PruneLogsPageSize int
PruneUpdateConfig bool
PruneLimit int
PruneSkipToTimestamp int64
S3Bucket string
S3Prefix string
S3Region string
S3AccessKeyID string
S3SecretAccessKey string
HealthCheckInterval int
NodeId string
InactivityTimeoutSeconds int
MaxShardSizeBytes int64
}
// ////////////////////////////////////// Constants
const (
PONG string = "pong"
API_LIMIT_REACHED string = "API Limit Reached"
SERVICE_TYPE_CLICKHOUSE string = "clickhouse"
SERVICE_TYPE_NATS string = "nats"
SERVICE_TYPE_FACEBOOK string = "facebook"
SERVICE_TYPE_DUCKDB string = "duckdb"
SERVICE_TYPE_CASSANDRA string = "cassandra"
FB_PIXEL string = "FB_PIXEL"
FB_TOKEN string = "FB_TOKEN"
NATS_QUEUE_GROUP = "tracker"
IDX_PREFIX_IPV4 = "gip4::"
IDX_PREFIX_IPV6 = "gip6::"
)
const (
WRITE_LOG = 1 << iota
WRITE_UPDATE = 1 << iota
WRITE_COUNT = 1 << iota
WRITE_EVENT = 1 << iota
WRITE_LTV = 1 << iota
WRITE_ALL = ^uint64(0)
WRITE_DESC_LOG = "log"
WRITE_DESC_UPDATE = "update"
WRITE_DESC_COUNT = "count"
WRITE_DESC_EVENT = "event"
)
const (
SVC_GET_REDIRECTS = 1 << iota
SVC_POST_REDIRECT = 1 << iota
SVC_GET_REDIRECT = 1 << iota
SVC_GET_AGREE = 1 << iota
SVC_POST_AGREE = 1 << iota
SVC_GET_JURISDICTIONS = 1 << iota
SVC_GET_GEOIP = 1 << iota
SVC_DESC_GET_REDIRECTS = "getRedirects"
SVC_DESC_POST_REDIRECT = "postRedirect"
SVC_DESC_GET_REDIRECT = "getRedirect"
SVC_DESC_GET_AGREE = "getAgreememts"
SVC_DESC_POST_AGREE = "postAgreements"
SVC_DESC_GET_JURISDICTIONS = "getJurisdictions"
)
var (
// Quote Ident replacer.
regexQiReplacer = strings.NewReplacer("\n", `\n`, `\`, `\\`, `"`, `\"`)
regexCount = regexp.MustCompile(`\.count\.(.*)`)
regexUpdate = regexp.MustCompile(`\.update\.(.*)`)
regexFilterUrl = regexp.MustCompile(`(.*)`)
regexInternalURI = regexp.MustCompile(`.*(/tr/|/img/|/pub/|/str/|/rdr/)v[0-9]+.*`) //TODO: MUST FILTER INTERNAL ROUTES, UPDATE IF ADDING A NEW ROUTE, PROXY OK!!!
regexUtmPrefix = regexp.MustCompile(`utm_`)
)
// ////////////////////////////////////// Transparent GIF
var TRACKING_GIF = []byte{0x47, 0x49, 0x46, 0x38, 0x39, 0x61, 0x1, 0x0, 0x1, 0x0, 0x80, 0x0, 0x0, 0xff, 0xff, 0xff, 0x0, 0x0, 0x0, 0x2c, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x2, 0x2, 0x44, 0x1, 0x0, 0x3b}
var kv = (*KV)(nil)
// //////////////////////////////////////
// Start here
// //////////////////////////////////////
func main() {
fmt.Println("\n\n//////////////////////////////////////////////////////////////")
fmt.Println("Tracker.")
fmt.Println("Software to track growth and visitor usage")
fmt.Println("https://github.com/sfproductlabs/tracker")
fmt.Println("(c) Copyright 2018-2021 SF Product Labs LLC.")
fmt.Println("Use of this software is subject to the LICENSE agreement.")
fmt.Println("//////////////////////////////////////////////////////////////\n\n")
//////////////////////////////////////// LOAD CONFIG
fmt.Println("Starting services...")
configFile := "config.json"
var fbPixelFlag = flag.String("fb-pixel", "", "provide facebook pixel")
var fbTokenFlag = flag.String("fb-token", "", "provide facebook token")
var prune = flag.Bool("prune", false, "prune items")
var logsOnly = flag.Bool("logs-only", false, "clear out log only")
flag.Parse()
if len(flag.Args()) > 0 {
configFile = flag.Args()[0]
}
fmt.Println("Configuration file: ", configFile)
file, _ := os.Open(configFile)
defer file.Close()
decoder := json.NewDecoder(file)
configuration := Configuration{}
err := decoder.Decode(&configuration)
if err != nil {
fmt.Println("error:", err)
}
configuration.ConfigFile = configFile
configuration.NodeId = uuid.New().String()
//////////////////////////////////////// OVERRIDE FACEBOOK VARIABLES
var fbPixel = os.Getenv(FB_PIXEL)
var fbToken = os.Getenv(FB_TOKEN)
if fbPixel == "" {
fbPixel = *fbPixelFlag
}
if fbToken == "" {
fbToken = *fbTokenFlag
}
if fbPixel != "" || fbToken != "" {
var fbNotify = &Service{}
var fbFound = false
for idx := range configuration.Notify {
s := &configuration.Notify[idx]
if s.Service == SERVICE_TYPE_FACEBOOK {
fbNotify = s
fbFound = true
}
}
if fbPixel != "" {
fbNotify.Context = fbPixel
}
if fbToken != "" {
fbNotify.Key = fbToken
}
fbNotify.Service = SERVICE_TYPE_FACEBOOK
if !fbFound {
fbNotify.AttemptAll = false
configuration.Notify = append(configuration.Notify, *fbNotify)
}
}
//////////////////////////////////////// SETUP CACHE
cache := cacheDir()
if cache == "" {
log.Fatal("Bad Cache.")
}
//////////////////////////////////////// Prime rand
//Setup rand
rand.Seed(time.Now().UTC().UnixNano())
////////////////////////////////////////SETUP FILTER
if configuration.UrlFilter != "" {
fmt.Println("Setting up URL prefix filter...")
configuration.IsUrlFiltered = true
regexFilterUrl, _ = regexp.Compile(configuration.UrlFilter)
}
////////////////////////////////////////SETUP ORIGIN
if configuration.AllowOrigin == "" {
configuration.AllowOrigin = "*"
}
if configuration.MaxShardSizeBytes == 0 {
configuration.MaxShardSizeBytes = 100 * 1024 * 1024 //100MB
}
//////////////////////////////////////// SETUP CONFIG VARIABLES
fmt.Println("Trusted domains: ", configuration.Domains)
apiVersion := "v" + strconv.Itoa(configuration.ApiVersion)
//LetsEncrypt needs 443 & 80, So only override if possible
proxyPort := ":http"
if configuration.UseLocalTLS && configuration.ProxyPort != "" {
proxyPort = configuration.ProxyPort
}
proxyPortTLS := ":https"
if configuration.UseLocalTLS && configuration.ProxyPort != "" {
proxyPortTLS = configuration.ProxyPortTLS
}
if !configuration.UseLocalTLS && (configuration.ProxyPort != "" || configuration.ProxyPortTLS != "") {
log.Fatalln("[CRITICAL] Can not use non-standard ports with LetsEncyrpt")
}
// allow redirect target port to be different than listening port (443 vs. 8443)
proxyPortRedirect := proxyPortTLS
if configuration.ProxyPortRedirect != "" {
proxyPortRedirect = configuration.ProxyPortRedirect
}
//////////////////////////////////////// LOAD NOTIFIERS
notification_services := make(map[string]*Service)
for idx := range configuration.Notify {
s := &configuration.Notify[idx]
notification_services[s.Service] = s
switch s.Service {
case SERVICE_TYPE_CLICKHOUSE:
fmt.Printf("Notify #%d: Connecting to ClickHouse: %s\n", idx, s.Hosts)
clickhouse := ClickhouseService{
Configuration: s,
AppConfig: &configuration,
}
err = clickhouse.connect()
if err != nil || s.Session == nil {
if s.Critical {
log.Fatalf("[CRITICAL] Notify #%d. Could not connect to ClickHouse. %s\n", idx, err)
} else {
fmt.Printf("[ERROR] Notify #%d. Could not connect to ClickHouse. %s\n", idx, err)
continue
}
}
//Now attach the one and only API service, replace if multiple
if !s.Skip {
configuration.API = *s
}
case SERVICE_TYPE_DUCKDB:
fmt.Printf("Notify #%d: Connecting to DuckDB: %s\n", idx, s.Hosts)
duck := DuckService{
Configuration: s,
AppConfig: &configuration,
}
err = duck.connect()
if err != nil || s.Session == nil {
if s.Critical {
log.Fatalf("[CRITICAL] Notify #%d. Could not connect to duck. %s\n", idx, err)
} else {
fmt.Printf("[ERROR] Notify #%d. Could not connect to duck. %s\n", idx, err)
continue
}
}
//Now attach the one and only API service, replace if multiple
if !s.Skip {
configuration.API = *s
}
case SERVICE_TYPE_CASSANDRA:
fmt.Printf("Notify #%d: Connecting to Cassandra Cluster: %s\n", idx, s.Hosts)
cassandra := CassandraService{
Configuration: s,
AppConfig: &configuration,
}
err = cassandra.connect()
if err != nil || s.Session == nil {
if s.Critical {
log.Fatalf("[CRITICAL] Notify #%d. Could not connect to Cassandra Cluster. %s\n", idx, err)
} else {
fmt.Printf("[ERROR] Notify #%d. Could not connect to Cassandra Cluster. %s\n", idx, err)
continue
}
}
var seq int
if err := cassandra.Session.Query(`SELECT seq FROM sequences where name='DB_VER' LIMIT 1`).Consistency(gocql.One).Scan(&seq); err != nil || seq != configuration.SchemaVersion {
log.Fatalln("[CRITICAL] Cassandra Bad DB_VER", err)
} else {
fmt.Printf("Notify #%d: Connected to Cassandra: DB_VER %d\n", idx, seq)
}
//Now attach the one and only API service, replace if multiple
if !s.Skip {
configuration.API = *s
}
case SERVICE_TYPE_NATS:
//TODO:
fmt.Printf("[ERROR] Notify #%d: NATS notifier not implemented\n", idx)
case SERVICE_TYPE_FACEBOOK:
facebook := FacebookService{
Configuration: s,
AppConfig: &configuration,
}
err = facebook.connect()
if s.Critical && (s.Context == "" || s.Key == "" || err != nil) {
log.Fatalf("[CRITICAL] Notify #%d. Could not setup connection to Facebook CAPI.\n", idx)
}
if !s.Skip {
configuration.API = *s
}
fmt.Printf("Notify #%d: Facebook CAPI configured for events\n", idx)
default:
fmt.Printf("[ERROR] %s #%d Notifier not implemented\n", s.Service, idx)
}
}
//////////////////////////////////////// SETUP NOTIFICATION PROXIES
for _, s := range notification_services {
if s.ProxyRealtimeStorageServiceName != "" {
s.ProxyRealtimeStorageService = notification_services[s.ProxyRealtimeStorageServiceName]
}
}
//////////////////////////////////////// LETS JUST PRUNE AND QUIT?
if *prune {
for idx := range configuration.Notify {
s := &configuration.Notify[idx]
if s.Session != nil {
switch s.Service {
case SERVICE_TYPE_CASSANDRA:
configuration.PruneLogsOnly = *logsOnly || configuration.PruneLogsOnly
err := s.Session.prune()
if err != nil {
fmt.Println("\nLast prune error...\n", err)
}
default:
fmt.Println("[ERROR]")
}
}
}
os.Exit(0)
return
} else {
//////////////////////////////////////// LOAD CONSUMERS
for idx := range configuration.Consume {
s := &configuration.Consume[idx]
switch s.Service {
case SERVICE_TYPE_CASSANDRA:
fmt.Printf("[ERROR] Consume #%d: Cassandra consumer not implemented\n", idx)
case SERVICE_TYPE_DUCKDB:
fmt.Printf("[ERROR] Consume #%d: DuckDB consumer not implemented\n", idx)
case SERVICE_TYPE_CLICKHOUSE:
fmt.Printf("[ERROR] Consume #%d: ClickHouse consumer not implemented\n", idx)
case SERVICE_TYPE_NATS:
fmt.Printf("Consume #%d: Connecting to NATS Cluster: %s\n", idx, s.Hosts)
gonats := NatsService{
Configuration: s,
AppConfig: &configuration,
}
err = gonats.connect()
if err != nil || s.Session == nil {
if s.Critical {
log.Fatalf("[CRITICAL] Notify #%d. Could not connect to NATS Cluster. %s\n", idx, err)
} else {
fmt.Printf("[ERROR] Notify #%d. Could not connect to NATS Cluster. %s\n", idx, err)
continue
}
} else {
fmt.Printf("Consume #%d: Connected to NATS.\n", idx)
}
s.Session.listen()
case SERVICE_TYPE_FACEBOOK:
fmt.Printf("[ERROR] Consume #%d: Facebook consumer not implemented\n", idx)
default:
fmt.Printf("[ERROR] %s #%d Consumer not implemented\n", s.Service, idx)
}
}
}
//////////////////////////////////////// SSL CERT MANAGER
certManager := autocert.Manager{
Prompt: autocert.AcceptTOS,
HostPolicy: autocert.HostWhitelist(configuration.Domains...),
Cache: autocert.DirCache(cache),
}
server := &http.Server{ // HTTP REDIR SSL RENEW
Addr: proxyPortTLS,
ReadTimeout: time.Duration(configuration.ReadTimeoutSeconds) * time.Second,
ReadHeaderTimeout: time.Duration(configuration.ReadHeaderTimeoutSeconds) * time.Second,
WriteTimeout: time.Duration(configuration.WriteTimeoutSeconds) * time.Second,
IdleTimeout: time.Duration(configuration.IdleTimeoutSeconds) * time.Second,
MaxHeaderBytes: configuration.MaxHeaderBytes, //1 << 20 // 1 MB
TLSConfig: &tls.Config{ // SEC PARAMS
GetCertificate: certManager.GetCertificate,
PreferServerCipherSuites: true,
InsecureSkipVerify: configuration.IgnoreInsecureTLS,
CipherSuites: []uint16{
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, // Required by Go (and HTTP/2 RFC), even if you only present ECDSA certs
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
},
//MinVersion: tls.VersionTLS12,
//CurvePreferences: []tls.CurveID{tls.CurveP521, tls.CurveP384, tls.CurveP256},
},
}
//////////////////////////////////////// MAX CHANNELS
connc := make(chan struct{}, configuration.MaximumConnections)
for i := 0; i < configuration.MaximumConnections; i++ {
connc <- struct{}{}
}
//////////////////////////////////////// WEBSOCKET
http.HandleFunc("/tr/"+apiVersion+"/ws", func(w http.ResponseWriter, r *http.Request) {
if r.Method == http.MethodOptions {
//Lets just allow requests to this endpoint
handlePreflight(&w, &configuration.AllowOrigin)
return
}
conn, err := upgrader.Upgrade(w, r, nil)
if err != nil {
fmt.Println("Error upgrading to WebSocket:", err)
return
}
defer conn.Close()
wargs := WriteArgs{
WriteType: WRITE_EVENT,
IP: getIP(r),
Browser: r.Header.Get("user-agent"),
Language: r.Header.Get("accept-language"),
URI: r.RequestURI,
Host: getHost(r),
IsServer: false,
}
for {
// Read message
messageType, msg, err := conn.ReadMessage()
if err != nil {
if websocket.IsUnexpectedCloseError(err, websocket.CloseGoingAway, websocket.CloseAbnormalClosure) {
fmt.Printf("WebSocket error: %v\n", err)
}
break
}
var data map[string]interface{}
// Handle different message types
switch messageType {
case websocket.TextMessage:
// Handle uncompressed JSON
if err := json.Unmarshal(msg, &data); err != nil {
fmt.Printf("Error parsing JSON: %v\n", err)
continue
}
case websocket.BinaryMessage:
// Decompress the message
decompressed, err := lz4.Decode(nil, msg)
if err != nil {
fmt.Printf("Error decompressing message: %v\n", err)
continue
}
// Parse JSON
if err := json.Unmarshal(decompressed, &data); err != nil {
fmt.Printf("Error parsing JSON: %v\n", err)
continue
}
}
wargs.EventID = uuid.Must(uuid.NewUUID())
wargs.Values = &data
trackWithArgs(&configuration, &w, r, &wargs)
}
})
//////////////////////////////////////// REDIRECT URL & SHORTENER
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
select {
case <-connc:
sargs := ServiceArgs{
ServiceType: SVC_GET_REDIRECT,
}
if err = serveWithArgs(&configuration, &w, r, &sargs); err != nil {
w.WriteHeader(http.StatusNotFound)
w.Write([]byte(err.Error()))
} else {
values := make(map[string]interface{})
values["etyp"] = "redirect"
values["ename"] = "short_rdr"
values["last"] = r.RequestURI
wargs := WriteArgs{
WriteType: WRITE_EVENT,
IP: getIP(r),
Browser: r.Header.Get("user-agent"),
Language: r.Header.Get("accept-language"),
EventID: uuid.Must(uuid.NewUUID()),
URI: r.RequestURI,
Host: getHost(r),
IsServer: false,
Values: &values,
}
trackWithArgs(&configuration, &w, r, &wargs)
}
connc <- struct{}{}
default:
w.Header().Set("Retry-After", "1")
http.Error(w, "Maximum clients reached on this node.", http.StatusServiceUnavailable)
}
})
//////////////////////////////////////// PROXY API ROUTES
if configuration.ProxyUrl != "" {
fmt.Println("Proxying to:", configuration.ProxyUrl)
origin, _ := url.Parse(configuration.ProxyUrl)
director := func(req *http.Request) {
req.Header.Add("X-Forwarded-Host", req.Host)
req.Header.Add("X-Origin-Host", origin.Host)
if configuration.ProxyForceJson {
req.Header.Set("content-type", "application/json")
}
req.URL.Scheme = "http"
req.URL.Host = origin.Host
}
proxy := &httputil.ReverseProxy{Director: director}
proxyFilter, _ := regexp.Compile(configuration.ProxyUrlFilter)
http.HandleFunc("/api/", func(w http.ResponseWriter, r *http.Request) {
if !configuration.IgnoreProxyOptions && r.Method == http.MethodOptions {
//Lets just allow requests to this endpoint
handlePreflight(&w, &configuration.AllowOrigin)
return
}
//TODO: Check certificate in cookie
select {
case <-connc:
//Check API Limit
if err := check(&configuration, r); err != nil {
w.WriteHeader(http.StatusTooManyRequests)
w.Write([]byte(API_LIMIT_REACHED))
return
}
//Proxy
w.Header().Set("Strict-Transport-Security", "max-age=15768000 ; includeSubDomains")
w.Header().Set("access-control-allow-origin", configuration.AllowOrigin)
proxy.ServeHTTP(w, r)
//Track
if configuration.ProxyUrlFilter != "" && !proxyFilter.MatchString(r.URL.Path) {
track(&configuration, &w, r)
}
connc <- struct{}{}
default:
w.Header().Set("Retry-After", "1")
http.Error(w, "Maximum clients reached on this node.", http.StatusServiceUnavailable)
}
})
}
//////////////////////////////////////// STATUS TEST ROUTE
http.HandleFunc("/status", func(w http.ResponseWriter, r *http.Request) {
json, _ := json.Marshal([2]KeyValue{KeyValue{Key: "client", Value: getIP(r)}, KeyValue{Key: "conns", Value: configuration.MaximumConnections - len(connc)}})
w.WriteHeader(http.StatusOK)
w.Header().Set("access-control-allow-origin", configuration.AllowOrigin)
w.Header().Set("Content-Type", "application/json")
w.Write(json)
})
//////////////////////////////////////// PING PONG TEST ROUTE
http.HandleFunc("/ping", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("access-control-allow-origin", configuration.AllowOrigin)
w.Write([]byte(PONG))
})
//////////////////////////////////////// CLEAR ROUTE
http.HandleFunc("/clear", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("access-control-allow-origin", configuration.AllowOrigin)
w.Header().Set("clear-site-data", "\"*\"")
w.Write([]byte("OK"))
})
//////////////////////////////////////// STATIC CONTENT ROUTE