AdGuardHome/dnsfilter
Simon Zolin 9b9902f004 * Revert "Update blocked_services.go"
Squashed commit of the following:

commit 567bb4671ddb4f51c13e51094f96e870212137c8
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Tue Aug 11 19:29:31 2020 +0300

    Revert "Update blocked_services.go"

    This reverts commit 4ca4fb8a11.
2020-08-12 13:03:17 +03:00
..
tests gometalinter 2019-01-25 20:13:57 +03:00
blocked_services.go * Revert "Update blocked_services.go" 2020-08-12 13:03:17 +03:00
dnsfilter_test.go * SB/PC: limit the number of hashes in request to 4 2020-06-23 12:39:19 +03:00
dnsfilter.go + rewrites: support IP exception; support "pass A only" case 2020-07-03 17:37:51 +03:00
README.md Rename from 'Adguard DNS' to 'AdGuard Home'. 2018-10-15 16:02:19 +03:00
rewrites_test.go + rewrites: support IP exception; support "pass A only" case 2020-07-03 17:37:51 +03:00
rewrites.go + rewrites: support IP exception; support "pass A only" case 2020-07-03 17:37:51 +03:00
safesearch.go + safesearch: add Pixabay 2019-11-08 13:07:25 +03:00
security.go * SB/PC: limit the number of hashes in request to 4 2020-06-23 12:39:19 +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)
    }
}