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Simplify the forwarding syntax

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This commit is contained in:
Frank Denis 2018-01-17 16:06:30 +01:00
parent 35e32b823f
commit f35357ef88
7 changed files with 77 additions and 34 deletions
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34
.travis.yml
View file

@ -22,119 +22,119 @@ script:
- env GOOS=windows GOARCH=386 go build
- mkdir win32
- ln dnscrypt-proxy.exe win32/
- ln dnscrypt-proxy.toml forwarding-rules.txt win32/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt win32/
- zip -9 -r dnscrypt-proxy-win32-${TRAVIS_TAG:-dev}.zip win32
- go clean
- env GOOS=windows GOARCH=amd64 go build
- mkdir win64
- ln dnscrypt-proxy.exe win64/
- ln dnscrypt-proxy.toml forwarding-rules.txt win64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt win64/
- zip -9 -r dnscrypt-proxy-win64-${TRAVIS_TAG:-dev}.zip win64
- go clean
- env GOOS=openbsd GOARCH=386 go build
- mkdir openbsd-i386
- ln dnscrypt-proxy openbsd-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt openbsd-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt openbsd-i386/
- tar czpvf dnscrypt-proxy-openbsd_i386-${TRAVIS_TAG:-dev}.tar.gz openbsd-i386
- go clean
- env GOOS=openbsd GOARCH=amd64 go build
- mkdir openbsd-amd64
- ln dnscrypt-proxy openbsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt openbsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt openbsd-amd64/
- tar czpvf dnscrypt-proxy-openbsd_amd64-${TRAVIS_TAG:-dev}.tar.gz openbsd-amd64
- go clean
- env GOOS=freebsd GOARCH=386 go build
- mkdir freebsd-i386
- ln dnscrypt-proxy freebsd-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt freebsd-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt freebsd-i386/
- tar czpvf dnscrypt-proxy-freebsd_i386-${TRAVIS_TAG:-dev}.tar.gz freebsd-i386
- go clean
- env GOOS=freebsd GOARCH=amd64 go build
- mkdir freebsd-amd64
- ln dnscrypt-proxy freebsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt freebsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt freebsd-amd64/
- tar czpvf dnscrypt-proxy-freebsd_amd64-${TRAVIS_TAG:-dev}.tar.gz freebsd-amd64
- go clean
- env GOOS=dragonfly GOARCH=amd64 go build
- mkdir dragonflybsd-amd64
- ln dnscrypt-proxy dragonflybsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt dragonflybsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt dragonflybsd-amd64/
- tar czpvf dnscrypt-proxy-dragonflybsd_amd64-${TRAVIS_TAG:-dev}.tar.gz dragonflybsd-amd64
- go clean
- env GOOS=netbsd GOARCH=386 go build
- mkdir netbsd-i386
- ln dnscrypt-proxy netbsd-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt netbsd-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt netbsd-i386/
- tar czpvf dnscrypt-proxy-netbsd_i386-${TRAVIS_TAG:-dev}.tar.gz netbsd-i386
- go clean
- env GOOS=netbsd GOARCH=amd64 go build
- mkdir netbsd-amd64
- ln dnscrypt-proxy netbsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt netbsd-amd64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt netbsd-amd64/
- tar czpvf dnscrypt-proxy-netbsd_amd64-${TRAVIS_TAG:-dev}.tar.gz netbsd-amd64
- go clean
- env GOOS=linux GOARCH=386 go build
- mkdir linux-i386
- ln dnscrypt-proxy linux-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-i386/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-i386/
- tar czpvf dnscrypt-proxy-linux_i386-${TRAVIS_TAG:-dev}.tar.gz linux-i386
- go clean
- env GOOS=linux GOARCH=amd64 go build
- mkdir linux-x86_64
- ln dnscrypt-proxy linux-x86_64/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-x86_64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-x86_64/
- tar czpvf dnscrypt-proxy-linux_x86_64-${TRAVIS_TAG:-dev}.tar.gz linux-x86_64
- go clean
- env GOOS=linux GOARCH=arm go build
- mkdir linux-arm
- ln dnscrypt-proxy linux-arm/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-arm/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-arm/
- tar czpvf dnscrypt-proxy-linux_arm-${TRAVIS_TAG:-dev}.tar.gz linux-arm
- go clean
- env GOOS=linux GOARCH=arm64 go build
- mkdir linux-arm64
- ln dnscrypt-proxy linux-arm64/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-arm64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-arm64/
- tar czpvf dnscrypt-proxy-linux_arm64-${TRAVIS_TAG:-dev}.tar.gz linux-arm64
- go clean
- env GOOS=linux GOARCH=mips go build
- mkdir linux-mips
- ln dnscrypt-proxy linux-mips/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-mips/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-mips/
- tar czpvf dnscrypt-proxy-linux_mips-${TRAVIS_TAG:-dev}.tar.gz linux-mips
- go clean
- env GOOS=linux GOARCH=mips64 go build
- mkdir linux-mips64
- ln dnscrypt-proxy linux-mips64/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-mips64/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-mips64/
- tar czpvf dnscrypt-proxy-linux_mips64-${TRAVIS_TAG:-dev}.tar.gz linux-mips64
- go clean
- env GOOS=linux GOARCH=mips64le go build
- mkdir linux-mips64le
- ln dnscrypt-proxy linux-mips64le/
- ln dnscrypt-proxy.toml forwarding-rules.txt linux-mips64le/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt linux-mips64le/
- tar czpvf dnscrypt-proxy-linux_mips64le-${TRAVIS_TAG:-dev}.tar.gz linux-mips64le
- go clean
- env GOOS=darwin GOARCH=amd64 go build
- mkdir macos
- ln dnscrypt-proxy macos/
- ln dnscrypt-proxy.toml forwarding-rules.txt macos/
- ln dnscrypt-proxy.toml forwarding-rules.txt blacklist.txt macos/
- tar czpvf dnscrypt-proxy-macos-${TRAVIS_TAG:-dev}.tar.gz macos
- ls -l dnscrypt-proxy-*.tar.gz dnscrypt-proxy-*.zip

30
dnscrypt-proxy/blacklist.txt Normal file
View file

@ -0,0 +1,30 @@
###########################
# Blacklist #
###########################
## Rules for name-based query blocking, one per line
##
## Example of valid patterns:
##
## ads.* | matches anything with an "ads." prefix
## *.example.com | matches example.com and all names within that zone such as www.example.com
## example.com | identical to the above
## *sex* | matches any name containing that substring
## ads[0-9]* | matches "ads" followed by one or more digits
## ads*.example* | *, ? and [] can be used anywhere, but prefixes/suffixes are faster
ad.*
ads.*
banner.*
banners.*
creatives.*
oas.*
oascentral.*
stats.*
tag.*
telemetry.*
tracker.*
*.local
eth0.me
*.workgroup

17
dnscrypt-proxy/common.go
View file

@ -4,6 +4,8 @@ import (
"encoding/binary"
"errors"
"net"
"strings"
"unicode"
)
type CryptoConstruction uint16
@ -80,3 +82,18 @@ func StringReverse(s string) string {
}
return string(r)
}
func StringTwoFields(str string) (string, string, bool) {
if len(str) < 3 {
return "", "", false
}
pos := strings.IndexFunc(str, unicode.IsSpace)
if pos == -1 {
return "", "", false
}
a, b := strings.TrimFunc(str[:pos], unicode.IsSpace), strings.TrimFunc(str[pos+1:], unicode.IsSpace)
if len(a) == 0 || len(b) == 0 {
return a, b, false
}
return a, b, true
}

5
dnscrypt-proxy/dnscrypt-proxy.toml
View file

@ -60,8 +60,8 @@ block_ipv6 = false
##################################################################################
## Example map entries (one entry per line):
## example.com: 9.9.9.9
## example.net: 9.9.9.9,8.8.8.8
## example.com 9.9.9.9
## example.net 9.9.9.9,8.8.8.8
# forwarding_rules = "forwarding-rules.txt"
@ -120,6 +120,7 @@ format = "tsv"
######################################################
## Blacklists are made of one pattern per line. Example of valid patterns:
##
## example.com
## *sex*
## ads.*

4
dnscrypt-proxy/forwarding-rules.txt
View file

@ -3,11 +3,11 @@
##################################
## This is used to route specific domain names to specific servers.
## The general format is: <domain>: <server address> [, <server address>...]
## The general format is: <domain> <server address> [, <server address>...]
## Adresses can be IPv4 and IPv6, and include a non-standard port number.
## In order to enable this feature, the "forwarding_rules" property needs to
## be set to that file name in the main configuration file.
example.com: 9.9.9.9,8.8.8.8
example.com 9.9.9.9,8.8.8.8

3
dnscrypt-proxy/plugin_block_name.go
View file

@ -4,6 +4,7 @@ import (
"io/ioutil"
"path/filepath"
"strings"
"unicode"
"github.com/hashicorp/go-immutable-radix"
"github.com/jedisct1/dlog"
@ -44,7 +45,7 @@ func (plugin *PluginBlockName) Init(proxy *Proxy) error {
plugin.blockedPrefixes = iradix.New()
plugin.blockedSuffixes = iradix.New()
for lineNo, line := range strings.Split(string(bin), "\n") {
line = strings.Trim(line, " \t\r\n")
line = strings.TrimFunc(line, unicode.IsSpace)
if len(line) == 0 || strings.HasPrefix(line, "#") {
continue
}

18
dnscrypt-proxy/plugin_forward.go
View file

@ -6,6 +6,7 @@ import (
"math/rand"
"net"
"strings"
"unicode"
"github.com/jedisct1/dlog"
"github.com/miekg/dns"
@ -35,25 +36,18 @@ func (plugin *PluginForward) Init(proxy *Proxy) error {
return err
}
for lineNo, line := range strings.Split(string(bin), "\n") {
line = strings.Trim(line, " \t\r")
line = strings.TrimFunc(line, unicode.IsSpace)
if len(line) == 0 || strings.HasPrefix(line, "#") {
continue
}
parts := strings.SplitN(line, ":", 2)
if len(parts) == 0 {
continue
}
if len(parts) != 2 {
domain, serversStr, ok := StringTwoFields(line)
if !ok {
return fmt.Errorf("Syntax error for a forwarding rule at line %d. Expected syntax: example.com: 9.9.9.9,8.8.8.8", 1+lineNo)
}
domain := strings.ToLower(strings.Trim(parts[0], " \t\r"))
serversStr := strings.Trim(parts[1], " \t\r")
if len(domain) == 0 || len(serversStr) == 0 {
continue
}
domain = strings.ToLower(domain)
var servers []string
for _, server := range strings.Split(serversStr, ",") {
server = strings.Trim(server, " \t\r")
server = strings.TrimFunc(server, unicode.IsSpace)
if net.ParseIP(server) != nil {
server = fmt.Sprintf("%s:%d", server, 53)
}