[feat] Reorganize code

Let's use a more structured folder system:
https://github.com/golang-standards/project-layout

- Resolves: #99

1 files changed, 0 insertions, 311 deletions

diff --git a/standalone/bonafide.go b/standalone/bonafide.go
deleted file mode 100644
index 92c1011..0000000
--- a/standalone/bonafide.go
+++ /dev/null
@@ -1,311 +0,0 @@
-// Copyright (C) 2018 LEAP
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-package bitmask
-
-import (
-	"crypto/tls"
-	"crypto/x509"
-	"encoding/json"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"log"
-	"math/rand"
-	"net/http"
-	"sort"
-	"strconv"
-	"strings"
-	"time"
-)
-
-const (
-	certAPI        = "https://api.black.riseup.net/1/cert"
-	eipAPI         = "https://api.black.riseup.net/1/config/eip-service.json"
-	geolocationAPI = "https://api.black.riseup.net:9001/json"
-	secondsPerHour = 60 * 60
-)
-
-var (
-	caCert = []byte(`-----BEGIN CERTIFICATE-----
-MIIFjTCCA3WgAwIBAgIBATANBgkqhkiG9w0BAQ0FADBZMRgwFgYDVQQKDA9SaXNl
-dXAgTmV0d29ya3MxGzAZBgNVBAsMEmh0dHBzOi8vcmlzZXVwLm5ldDEgMB4GA1UE
-AwwXUmlzZXVwIE5ldHdvcmtzIFJvb3QgQ0EwHhcNMTQwNDI4MDAwMDAwWhcNMjQw
-NDI4MDAwMDAwWjBZMRgwFgYDVQQKDA9SaXNldXAgTmV0d29ya3MxGzAZBgNVBAsM
-Emh0dHBzOi8vcmlzZXVwLm5ldDEgMB4GA1UEAwwXUmlzZXVwIE5ldHdvcmtzIFJv
-b3QgQ0EwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC76J4ciMJ8Sg0m
-TP7DF2DT9zNe0Csk4myoMFC57rfJeqsAlJCv1XMzBmXrw8wq/9z7XHv6n/0sWU7a
-7cF2hLR33ktjwODlx7vorU39/lXLndo492ZBhXQtG1INMShyv+nlmzO6GT7ESfNE
-LliFitEzwIegpMqxCIHXFuobGSCWF4N0qLHkq/SYUMoOJ96O3hmPSl1kFDRMtWXY
-iw1SEKjUvpyDJpVs3NGxeLCaA7bAWhDY5s5Yb2fA1o8ICAqhowurowJpW7n5ZuLK
-5VNTlNy6nZpkjt1QycYvNycffyPOFm/Q/RKDlvnorJIrihPkyniV3YY5cGgP+Qkx
-HUOT0uLA6LHtzfiyaOqkXwc4b0ZcQD5Vbf6Prd20Ppt6ei0zazkUPwxld3hgyw58
-m/4UIjG3PInWTNf293GngK2Bnz8Qx9e/6TueMSAn/3JBLem56E0WtmbLVjvko+LF
-PM5xA+m0BmuSJtrD1MUCXMhqYTtiOvgLBlUm5zkNxALzG+cXB28k6XikXt6MRG7q
-hzIPG38zwkooM55yy5i1YfcIi5NjMH6A+t4IJxxwb67MSb6UFOwg5kFokdONZcwj
-shczHdG9gLKSBIvrKa03Nd3W2dF9hMbRu//STcQxOailDBQCnXXfAATj9pYzdY4k
-ha8VCAREGAKTDAex9oXf1yRuktES4QIDAQABo2AwXjAdBgNVHQ4EFgQUC4tdmLVu
-f9hwfK4AGliaet5KkcgwDgYDVR0PAQH/BAQDAgIEMAwGA1UdEwQFMAMBAf8wHwYD
-VR0jBBgwFoAUC4tdmLVuf9hwfK4AGliaet5KkcgwDQYJKoZIhvcNAQENBQADggIB
-AGzL+GRnYu99zFoy0bXJKOGCF5XUXP/3gIXPRDqQf5g7Cu/jYMID9dB3No4Zmf7v
-qHjiSXiS8jx1j/6/Luk6PpFbT7QYm4QLs1f4BlfZOti2KE8r7KRDPIecUsUXW6P/
-3GJAVYH/+7OjA39za9AieM7+H5BELGccGrM5wfl7JeEz8in+V2ZWDzHQO4hMkiTQ
-4ZckuaL201F68YpiItBNnJ9N5nHr1MRiGyApHmLXY/wvlrOpclh95qn+lG6/2jk7
-3AmihLOKYMlPwPakJg4PYczm3icFLgTpjV5sq2md9bRyAg3oPGfAuWHmKj2Ikqch
-Td5CHKGxEEWbGUWEMP0s1A/JHWiCbDigc4Cfxhy56CWG4q0tYtnc2GMw8OAUO6Wf
-Xu5pYKNkzKSEtT/MrNJt44tTZWbKV/Pi/N2Fx36my7TgTUj7g3xcE9eF4JV2H/sg
-tsK3pwE0FEqGnT4qMFbixQmc8bGyuakr23wjMvfO7eZUxBuWYR2SkcP26sozF9PF
-tGhbZHQVGZUTVPyvwahMUEhbPGVerOW0IYpxkm0x/eaWdTc4vPpf/rIlgbAjarnJ
-UN9SaWRlWKSdP4haujnzCoJbM7dU9bjvlGZNyXEekgeT0W2qFeGGp+yyUWw8tNsp
-0BuC1b7uW/bBn/xKm319wXVDvBgZgcktMolak39V7DVO
------END CERTIFICATE-----`)
-)
-
-type bonafide struct {
-	client         httpClient
-	tzOffsetHours  int
-	eip            *eipService
-	defaultGateway string
-}
-
-type httpClient interface {
-	Post(url, contentType string, body io.Reader) (resp *http.Response, err error)
-}
-
-type eipService struct {
-	Gateways  []gateway
-	Locations map[string]struct {
-		CountryCode string
-		Hemisphere  string
-		Name        string
-		Timezone    string
-	}
-	OpenvpnConfiguration map[string]interface{} `json:"openvpn_configuration"`
-}
-
-type gateway struct {
-	Capabilities struct {
-		Ports     []string
-		Protocols []string
-	}
-	Host      string
-	IPAddress string `json:"ip_address"`
-	Location  string
-}
-
-type gatewayDistance struct {
-	gateway  gateway
-	distance int
-}
-
-type geoLocation struct {
-	IPAddress      string   `json:"ip"`
-	Country        string   `json:"cc"`
-	City           string   `json:"city"`
-	Latitude       float64  `json:"lat"`
-	Longitude      float64  `json:"lon"`
-	SortedGateways []string `json:"gateways"`
-}
-
-func newBonafide() *bonafide {
-	certs := x509.NewCertPool()
-	certs.AppendCertsFromPEM(caCert)
-	client := &http.Client{
-		Transport: &http.Transport{
-			TLSClientConfig: &tls.Config{
-				RootCAs: certs,
-			},
-		},
-	}
-	_, tzOffsetSeconds := time.Now().Zone()
-	tzOffsetHours := tzOffsetSeconds / secondsPerHour
-
-	return &bonafide{
-		client:         client,
-		tzOffsetHours:  tzOffsetHours,
-		eip:            nil,
-		defaultGateway: "",
-	}
-}
-
-func (b *bonafide) getCertPem() ([]byte, error) {
-	resp, err := b.client.Post(certAPI, "", nil)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		return nil, fmt.Errorf("get vpn cert has failed with status: %s", resp.Status)
-	}
-
-	return ioutil.ReadAll(resp.Body)
-}
-
-func (b *bonafide) getGateways() ([]gateway, error) {
-	if b.eip == nil {
-		err := b.fetchEipJSON()
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return b.eip.Gateways, nil
-}
-
-func (b *bonafide) setDefaultGateway(name string) {
-	b.defaultGateway = name
-	b.sortGateways()
-}
-
-func (b *bonafide) getOpenvpnArgs() ([]string, error) {
-	if b.eip == nil {
-		err := b.fetchEipJSON()
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	args := []string{}
-	for arg, value := range b.eip.OpenvpnConfiguration {
-		switch v := value.(type) {
-		case string:
-			args = append(args, "--"+arg)
-			args = append(args, strings.Split(v, " ")...)
-		case bool:
-			if v {
-				args = append(args, "--"+arg)
-			}
-		default:
-			log.Printf("Unknown openvpn argument type: %s - %v", arg, value)
-		}
-	}
-	return args, nil
-}
-
-func (b *bonafide) fetchGeolocation() ([]string, error) {
-	resp, err := b.client.Post(geolocationAPI, "", nil)
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		return nil, fmt.Errorf("get geolocation failed with status: %s", resp.Status)
-	}
-
-	geo := &geoLocation{}
-	dataJSON, err := ioutil.ReadAll(resp.Body)
-	err = json.Unmarshal(dataJSON, &geo)
-	if err != nil {
-		_ = fmt.Errorf("get vpn cert has failed with status: %s", resp.Status)
-		return nil, err
-	}
-
-	return geo.SortedGateways, nil
-
-}
-
-func (b *bonafide) fetchEipJSON() error {
-	resp, err := b.client.Post(eipAPI, "", nil)
-	if err != nil {
-		return err
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		return fmt.Errorf("get eip json has failed with status: %s", resp.Status)
-	}
-
-	var eip eipService
-	decoder := json.NewDecoder(resp.Body)
-	err = decoder.Decode(&eip)
-	if err != nil {
-		return err
-	}
-
-	b.eip = &eip
-	b.sortGateways()
-	return nil
-}
-
-func (b *bonafide) sortGatewaysByGeolocation(geolocatedGateways []string) []gatewayDistance {
-	gws := []gatewayDistance{}
-
-	for i, host := range geolocatedGateways {
-		for _, gw := range b.eip.Gateways {
-			if gw.Host == host {
-				gws = append(gws, gatewayDistance{gw, i})
-			}
-		}
-	}
-	return gws
-}
-
-func (b *bonafide) sortGatewaysByTimezone() []gatewayDistance {
-	gws := []gatewayDistance{}
-
-	for _, gw := range b.eip.Gateways {
-		distance := 13
-		if gw.Location == b.defaultGateway {
-			distance = -1
-		} else {
-			gwOffset, err := strconv.Atoi(b.eip.Locations[gw.Location].Timezone)
-			if err != nil {
-				log.Printf("Error sorting gateways: %v", err)
-			} else {
-				distance = tzDistance(b.tzOffsetHours, gwOffset)
-			}
-		}
-		gws = append(gws, gatewayDistance{gw, distance})
-	}
-	rand.Seed(time.Now().UnixNano())
-	cmp := func(i, j int) bool {
-		if gws[i].distance == gws[j].distance {
-			return rand.Intn(2) == 1
-		}
-		return gws[i].distance < gws[j].distance
-	}
-	sort.Slice(gws, cmp)
-	return gws
-}
-
-func (b *bonafide) sortGateways() {
-	gws := []gatewayDistance{}
-
-	geolocatedGateways, _ := b.fetchGeolocation()
-
-	if len(geolocatedGateways) > 0 {
-		gws = b.sortGatewaysByGeolocation(geolocatedGateways)
-	} else {
-		log.Printf("Falling back to timezone heuristic for gateway selection")
-		gws = b.sortGatewaysByTimezone()
-	}
-
-	for i, gw := range gws {
-		b.eip.Gateways[i] = gw.gateway
-	}
-}
-
-func tzDistance(offset1, offset2 int) int {
-	abs := func(x int) int {
-		if x < 0 {
-			return -x
-		}
-		return x
-	}
-	distance := abs(offset1 - offset2)
-	if distance > 12 {
-		distance = 24 - distance
-	}
-	return distance
-}