badguardhome/dnsfilter
Simon Zolin a6d7511806 Merge: + dns rewrites: support wildcard override
Close #922

Squashed commit of the following:

commit 8ab742d84916a02043989fcfa5fc258e84046205
Merge: 2abde92f e398117d
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Thu Jan 16 12:47:44 2020 +0300

    Merge remote-tracking branch 'origin/master' into 922-rewrites

commit 2abde92fe2d1bdb153787b4ecac60f9744c7fd1a
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Thu Jan 16 12:34:41 2020 +0300

    minor

commit 3c20579cde85967786830d2d1b87cd987fc2ae12
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Fri Jan 10 19:06:53 2020 +0300

    don't change the order of rewrite entry list (apply priority at runtime)

commit 4f658f98011a7e31852c0ce379f2a02738f5614f
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Tue Dec 31 15:21:50 2019 +0300

    minor

commit 9e56b4f3abefe3ff1d19bc61375f31dc55242e52
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Tue Dec 31 15:14:14 2019 +0300

    * remove unused code

commit 4178f025a388eb768914306efa91ffead87e5a0c
Author: Simon Zolin <s.zolin@adguard.com>
Date:   Tue Dec 31 15:13:57 2019 +0300

    + dns rewrites: support wildcard override
2020-01-16 12:51:35 +03:00
..
tests gometalinter 2019-01-25 20:13:57 +03:00
README.md Rename from 'Adguard DNS' to 'AdGuard Home'. 2018-10-15 16:02:19 +03:00
dnsfilter.go Merge: + dns rewrites: support wildcard override 2020-01-16 12:51:35 +03:00
dnsfilter_test.go Merge: + dns rewrites: support wildcard override 2020-01-16 12:51:35 +03:00
rewrites.go Merge: + dns rewrites: support wildcard override 2020-01-16 12:51:35 +03:00
safesearch.go + safesearch: add Pixabay 2019-11-08 13:07:25 +03:00
security.go Merge: + dns rewrites: support wildcard override 2020-01-16 12:51:35 +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/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)
    }
}