AdGuardHome/internal/filtering
Ainar Garipov dea8a585f8 Pull request: filtering: fix rw to subdomain
Updates #4016.

Squashed commit of the following:

commit 83bb15c5a5098103cd17e76b49f456fb4fa73408
Merge: 81905503 313555b1
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 27 19:36:44 2021 +0300

    Merge branch 'master' into 4016-rw-subdomain

commit 81905503c977c004d7ddca1d4e7537bf76443a6e
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 27 19:35:51 2021 +0300

    filtering: fix self reqs

commit b706f481f00232d28dade0bd747a7496753c7deb
Merge: 29cf83de 661f4ece
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 27 19:13:08 2021 +0300

    Merge branch 'master' into 4016-rw-subdomain

commit 29cf83de8e3ff60ea1c471c2a161055b1377392d
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 27 19:07:08 2021 +0300

    all: fix docs

commit 9213fd8ec2b81e65b1198ab241400065f14684b1
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 27 18:44:06 2021 +0300

    filtering: fix rw to subdomain
2021-12-27 19:40:39 +03:00
..
tests Pull request: all: less annoying pkg names 2021-05-21 16:15:47 +03:00
README.md Pull request: all: less annoying pkg names 2021-05-21 16:15:47 +03:00
blocked.go Pull request: 3835 check ports properly 2021-12-16 20:54:59 +03:00
blocked_test.go Pull request: all: imp build tags 2021-06-15 19:42:41 +03:00
dnsrewrite.go Pull request: 3846 hosts querylog 2021-11-23 18:01:48 +03:00
dnsrewrite_test.go Pull request: 3846 filter lists ids 2021-11-26 18:25:43 +03:00
filtering.go Pull request: filtering: fix rw to subdomain 2021-12-27 19:40:39 +03:00
filtering_test.go Pull request: 3846 filter lists ids 2021-11-26 18:25:43 +03:00
rewrites.go Pull request: filtering: fix rw to subdomain 2021-12-27 19:40:39 +03:00
rewrites_test.go Pull request: filtering: fix rw to subdomain 2021-12-27 19:40:39 +03:00
safebrowsing.go Pull request: 3835 check ports properly 2021-12-16 20:54:59 +03:00
safebrowsing_test.go Pull request: 3846 filter lists ids 2021-11-26 18:25:43 +03:00
safesearch.go Pull request: 3835 check ports properly 2021-12-16 20:54:59 +03:00

README.md

AdGuard Home's DNS filtering go library

Example use:

[ -z "$GOPATH" ] && export GOPATH=$HOME/go
go get -d github.com/AdguardTeam/AdGuardHome/filtering

Create file filter.go

package main

import (
    "github.com/AdguardTeam/AdGuardHome/filtering"
    "log"
)

func main() {
    filter := filtering.New()
    filter.AddRule("||dou*ck.net^")
    host := "www.doubleclick.net"
    res, err := filter.CheckHost(host)
    if err != nil {
        // temporary failure
        log.Fatalf("Failed to check host %q: %s", host, err)
    }
    if res.IsFiltered {
        log.Printf("Host %s is filtered, reason - %q, matched rule: %q", host, res.Reason, res.Rule)
    } else {
        log.Printf("Host %s is not filtered, reason - %q", host, res.Reason)
    }
}

And then run it:

go run filter.go

You will get:

2000/01/01 00:00:00 Host www.doubleclick.net is filtered, reason - 'FilteredBlackList', matched rule: '||dou*ck.net^'

You can also enable checking against AdGuard's SafeBrowsing:

package main

import (
    "github.com/AdguardTeam/AdGuardHome/filtering"
    "log"
)

func main() {
    filter := filtering.New()
    filter.EnableSafeBrowsing()
    host := "wmconvirus.narod.ru" // hostname for testing safebrowsing
    res, err := filter.CheckHost(host)
    if err != nil {
        // temporary failure
        log.Fatalf("Failed to check host %q: %s", host, err)
    }
    if res.IsFiltered {
        log.Printf("Host %s is filtered, reason - %q, matched rule: %q", host, res.Reason, res.Rule)
    } else {
        log.Printf("Host %s is not filtered, reason - %q", host, res.Reason)
    }
}