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main.go
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main.go
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package main
import (
"bytes"
"context"
"encoding/json"
"fmt"
"html/template"
"io/ioutil"
"net"
"net/http"
"os"
"strconv"
"strings"
"time"
"github.com/shomali11/util/xhashes"
"cloud.google.com/go/bigquery"
pb "github.com/gidoBOSSftw5731/Historical-ROA/proto"
"github.com/gidoBOSSftw5731/log"
"google.golang.org/api/iterator"
"google.golang.org/protobuf/encoding/protojson"
)
// inputROA is a Struct with all the data from the json
// we do NOT store this directly.
// https://mholt.github.io/json-to-go/
type inputROA struct {
Asn string `json:"asn"`
Prefix string `json:"prefix"`
MaxLength int `json:"maxLength"`
Ta string `json:"ta"`
ParseCIDR string
}
type inputROAArr struct {
Roas []inputROA `json:"roas"`
}
// storedROAs is what we store, we simply trim the subnet
// from the input ROA and store it seperately.
type storedROA struct {
Asn string `json:"asn"`
Prefix string `json:"prefix"`
MaxLength int `json:"maxLength"`
Ta string `json:"ta"`
Subnet int
}
type storedROAWithTime struct {
Asn string `json:"asn"`
Prefix string `json:"prefix"`
MaxLength int `json:"maxLength"`
Ta string `json:"ta"`
Subnet int
Times []time.Time
}
// google cloud credentials file
type Creds struct {
AuthProviderX509CertURL string `json:"auth_provider_x509_cert_url"`
AuthURI string `json:"auth_uri"`
ClientEmail string `json:"client_email"`
ClientID string `json:"client_id"`
ClientX509CertURL string `json:"client_x509_cert_url"`
PrivateKey string `json:"private_key"`
PrivateKeyID string `json:"private_key_id"`
ProjectID string `json:"project_id"`
TokenURI string `json:"token_uri"`
Type string `json:"type"`
}
var (
client *bigquery.Client
gcreds Creds
)
const (
roaURL = "https://hosted-routinator.rarc.net/json"
projectID = "historical-roas"
projectLocation = "us-east4"
)
func main() {
// enable logging
log.SetCallDepth(2)
// set http port
port := os.Getenv("PORT")
if port == "" {
port = "8081"
log.Tracef("using default port: %v", port)
}
gcredsPath := os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")
if gcredsPath == "" {
gcredsPath = "./Historical-ROAs-02210e643954.json"
}
gc, err := ioutil.ReadFile(gcredsPath)
if err != nil {
log.Fatalln(err)
}
err = json.Unmarshal(gc, &gcreds)
if err != nil {
log.Fatalln(err)
}
// open bigquery connection
client, err = bigquery.NewClient(context.Background(), gcreds.ProjectID)
if err != nil {
log.Fatalln(err)
}
client.Location = projectLocation
http.HandleFunc("/update", pullToDB)
http.HandleFunc("/", mainPage)
http.HandleFunc("/hsts", hsts)
//http.HandleFunc("/aaaaaaaaaaaaaaaa", movefromoldtonew.Main)
log.Fatal(http.ListenAndServe(fmt.Sprintf(":%s", port), nil))
}
func hsts(w http.ResponseWriter, r *http.Request) {
w.Header().Add("strict-transport-security", "max-age=2629800")
// If the X-Forwarded-Proto was set upstream as HTTP, then the request came in without TLS.
if r.Header.Get("X-Forwarded-Proto") == "http" || r.URL.Scheme != "https" {
r.URL.Scheme = "https"
http.Redirect(w, r, r.URL.String(), http.StatusMovedPermanently)
}
}
func mainPage(w http.ResponseWriter, r *http.Request) {
ctx := context.Background()
w.Header().Add("strict-transport-security", "max-age=2629800")
tmpl, err := template.ParseFiles("./index.html")
if err != nil {
log.Errorln(err)
return
}
if r.Method != http.MethodPost {
tmpl.Execute(w, nil)
return
}
input := inputROA{
Asn: r.FormValue("asn"),
Prefix: r.FormValue("prefix"),
ParseCIDR: r.FormValue("parsecidr"),
}
if input.ParseCIDR != "" {
_, n, err := net.ParseCIDR(input.Prefix)
if err != nil {
tmpl.Execute(w, nil)
return
}
input.Prefix = n.String()
}
inputStore := convInToStored(input)
var hasASN, hasPrefix bool
if inputStore.Asn != "" {
hasASN = true
}
if inputStore.Prefix != "" && inputStore.Subnet != 0 {
hasPrefix = true
}
log.Traceln(input)
var query *bigquery.Query
switch {
case hasASN && !hasPrefix:
query = client.Query(`SELECT asn, prefix, mask, maxlen, ta, inserttimes FROM historical-roas.historical.roas_arr
WHERE asn = @asn`)
case !hasASN && hasPrefix:
query = client.Query(`SELECT asn, prefix, mask, maxlen, ta, inserttimes FROM historical-roas.historical.roas_arr
WHERE prefix = @prefix AND mask = @mask`)
case hasASN && hasPrefix:
query = client.Query(`SELECT asn, prefix, mask, maxlen, ta, inserttimes FROM historical-roas.historical.roas_arr
WHERE asn = @asn AND prefix = @prefix AND mask = @mask`)
}
query.Parameters = []bigquery.QueryParameter{
{
Name: "asn",
Value: inputStore.Asn,
},
{
Name: "prefix",
Value: inputStore.Prefix,
},
{
Name: "mask",
Value: inputStore.Subnet,
},
}
job, err := query.Run(ctx)
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
status, _ := job.Wait(ctx)
if err := status.Err(); err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
it, err := job.Read(ctx)
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
var resultsarr pb.ResultArr
for {
var row []bigquery.Value
err := it.Next(&row)
if err == iterator.Done {
break
}
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
continue
}
var intime []time.Time
var buf = row[5].([]bigquery.Value)
for _, t := range buf {
intime = append(intime, t.(time.Time))
}
var results = pb.ResultsFromDB{
ASN: row[0].(string), // this
Prefix: row[1].(string), // is
Mask: int32(row[2].(int64)), // stupid
Maxlen: int32(row[3].(int64)), // I hate you,
Ta: row[4].(string), // Google
}
for _, i := range intime {
results.Unixtimearr = append(results.Unixtimearr, (i.Unix()))
results.RFC3339Timearr = append(results.RFC3339Timearr, i.Format(time.RFC3339))
}
results.Fullprefix = fmt.Sprintf("%v/%v", results.Prefix, results.Mask)
switch {
case results.Maxlen != results.Mask:
results.Fullprefixrange = fmt.Sprintf("%v/%v => %v",
results.Prefix, results.Mask, results.Maxlen)
case results.Maxlen == results.Mask:
results.Fullprefixrange = fmt.Sprintf("%v/%v", results.Prefix, results.Mask)
}
resultsarr.Results = append(resultsarr.Results, &results)
}
fmt.Fprintln(w, protojson.Format(&resultsarr))
}
// convert input data into stored data
func convInToStored(i inputROA) storedROA {
// shut up I know its not correct terminology
ipandmask := strings.Split(i.Prefix, "/")
var mask int
// probably doesnt need error checking
if len(ipandmask) == 2 {
mask, _ = strconv.Atoi(ipandmask[1])
}
return storedROA{
Asn: i.Asn,
Prefix: ipandmask[0],
MaxLength: i.MaxLength,
Ta: i.Ta,
Subnet: mask,
}
}
func pullToDB(w http.ResponseWriter, r *http.Request) {
// see if there has been an update within 55 mins
query := client.Query("SELECT LAST_MODIFIED_TIME FROM INFORMATION_SCHEMA.SCHEMATA")
row, _ := query.Read(context.Background())
var time_row []bigquery.Value
err := row.Next(&time_row)
switch err {
case nil:
lastIn := time_row[0].(time.Time)
if lastIn.Add(50 * time.Minute).After(time.Now()) {
log.Traceln("Record added in last 50 mins")
ErrorHandler(w, r, 401, "already done", nil)
return
}
default:
//ErrorHandler(w, r, 500, "Cant get last edit time", err)
log.Errorln("Cant get last edit time")
}
w.WriteHeader(200)
fmt.Fprintln(w, "ok")
http.Error(w, "can't hijack rw", 200)
hj, _ := w.(http.Hijacker)
conn, _, _ := hj.Hijack()
conn.Close()
log.Debugln("starting update")
origIn, err := downloadRARC()
if err != nil {
ErrorHandler(w, r, 500, "Error parsing JSON", err)
return
}
ctx := context.Background()
//inserter := client.Dataset("historical").Table("roas_arr").Inserter()
schema, err := bigquery.InferSchema(storedROAWithTime{})
if err != nil {
ErrorHandler(w, r, 500, "failed to infer schema", err)
return
}
schema = schema.Relax()
//query and dump to map
var stored = make(map[string]struct{})
currentQuery := client.Query(`SELECT asn, ta, prefix, mask, maxlen FROM historical-roas.historical.roas_arr`)
job, err := currentQuery.Run(ctx)
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
status, _ := job.Wait(ctx)
if err := status.Err(); err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
it, err := job.Read(ctx)
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
for {
var row []bigquery.Value
err := it.Next(&row)
if err == iterator.Done {
break
}
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
continue
}
stored[xhashes.MD5(fmt.Sprint(pb.ResultsFromDB{
ASN: row[0].(string),
Ta: row[1].(string),
Prefix: row[2].(string),
Mask: int32(row[3].(int64)), // google, you are
Maxlen: int32(row[4].(int64)), // disgusting
}))] = struct{}{}
}
now := []time.Time{time.Now()}
var id int
var in []*storedROAWithTime
for _, i := range origIn.Roas {
id++
// shut up I know its not correct terminology
ipandmask := strings.Split(i.Prefix, "/")
// probably doesnt need error checking
mask, _ := strconv.Atoi(ipandmask[1])
/*in = append(in, storedROA{
Asn: i.Asn,
Prefix: ipandmask[0],
MaxLength: i.MaxLength,
Ta: i.Ta,
Subnet: mask,
})*/
in = append(in, &storedROAWithTime{i.Asn, ipandmask[0], i.MaxLength, i.Ta, mask, now})
//go log.Traceln(debug)
//debug++
}
log.Traceln("making buf table")
// make buf table
err = client.Dataset("historical").Table("buf").Delete(ctx)
if err != nil {
log.Errorln("Error Deleting buf: ", err)
err = nil
}
err = client.Dataset("historical").Table("buf").Create(ctx,
&bigquery.TableMetadata{Schema: schema})
if err != nil {
ErrorHandler(w, r, 500, "error creating buf", err)
return
}
tmpinserter := client.Dataset("historical").Table("buf").Inserter()
var divided [][]*storedROAWithTime
chunk := 950
for i := 0; i < len(in); i += chunk {
end := i + chunk
if end > len(in) {
end = len(in)
}
divided = append(divided, in[i:end])
}
for _, i := range divided {
if len(i) == 0 {
log.Errorln("Divided array had len 0")
break
}
err = tmpinserter.Put(ctx, i)
if err != nil {
ErrorHandler(w, r, 500, "error putting updates", err)
continue
}
}
// now make one plus one equal 2
// historical-roas.historical.roas_arr
query = client.Query(`MERGE historical.roas_arr arr
USING historical.buf b
ON b.Asn = arr.asn AND arr.maxlen = b.MaxLength
AND b.Prefix = arr.prefix AND arr.ta = b.Ta
AND b.Subnet = arr.mask
WHEN MATCHED THEN
UPDATE SET inserttimes = ARRAY_CONCAT(b.times, arr.inserttimes)
WHEN NOT MATCHED BY TARGET THEN
INSERT (asn, maxlen, prefix, ta, mask, inserttimes) VALUES (b.Asn, b.MaxLength, b.Prefix, b.Ta, b.Subnet, b.times)`)
job, err = query.Run(ctx)
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
}
status, _ = job.Wait(ctx)
if err := status.Err(); err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
_, err = job.Read(ctx)
if err != nil {
ErrorHandler(w, r, 500, "Error with query", err)
return
}
log.Debugln("done updating")
}
func downloadRARC() (*inputROAArr, error) {
var form inputROAArr
resp, err := http.Get(roaURL)
if err != nil {
return &form, err
}
defer resp.Body.Close()
buf := new(bytes.Buffer)
buf.ReadFrom(resp.Body)
jsonIn := buf.String()
err = json.Unmarshal([]byte(jsonIn), &form)
if err != nil {
return &form, err
}
return &form, nil
}
//ErrorHandler is a function to handle HTTP errors
//copied from imgsrvr, slightly different formatting
func ErrorHandler(resp http.ResponseWriter, req *http.Request, status int, alert string, err error) {
log.Errorln(err)
resp.WriteHeader(status)
log.Error("artifical http error: ", status, alert)
fmt.Fprintf(resp, "You have found an error! This error is of type %v. Built in alert: \n'%v',\n Would you like a <a href='https://http.cat/%v'>cat</a> or a <a href='https://httpstatusdogs.com/%v'>dog?</a>",
status, alert, status, status)
}
/*
; modified to save storage
create table roas_arr (
asn text,
prefix text,
maxlen int,
ta text,
mask int,
inserttimes TIMESTAMP WITHOUT TIME ZONE[]
);
create table last_modified (
time TIMESTAMP WITHOUT TIME ZONE
);
create index idx_as on roas_arr (asn);
create index idx_prefix_mask on roas_arr (prefix, mask);
create index idx_prefix_mask_asn on roas_arr (prefix, mask, asn);
*/