badguardhome/internal/dnsfilter
Ainar Garipov ae8de95d89 Pull request: * all: move internal Go packages to internal/
Merge in DNS/adguard-home from 2234-move-to-internal to master

Squashed commit of the following:

commit d26a288cabeac86f9483fab307677b1027c78524
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Fri Oct 30 12:44:18 2020 +0300

    * all: move internal Go packages to internal/

    Closes #2234.
2020-10-30 13:32:02 +03:00
..
tests Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
blocked_services.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
dnsfilter_test.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
dnsfilter.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
README.md Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
rewrites_test.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
rewrites.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
safe_search.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
safesearch.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
sb_pc_test.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00
sb_pc.go Pull request: * all: move internal Go packages to internal/ 2020-10-30 13:32:02 +03:00

AdGuard Home's DNS filtering go library

Example use:

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

Create file filter.go

package main

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

func main() {
    filter := dnsfilter.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 '%s': %s", host, err)
    }
    if res.IsFiltered {
        log.Printf("Host %s is filtered, reason - '%s', matched rule: '%s'", host, res.Reason, res.Rule)
    } else {
        log.Printf("Host %s is not filtered, reason - '%s'", 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/dnsfilter"
    "log"
)

func main() {
    filter := dnsfilter.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 '%s': %s", host, err)
    }
    if res.IsFiltered {
        log.Printf("Host %s is filtered, reason - '%s', matched rule: '%s'", host, res.Reason, res.Rule)
    } else {
        log.Printf("Host %s is not filtered, reason - '%s'", host, res.Reason)
    }
}