switch to github-release

Readme update and code cleanup from @allhailjarjar approved @eyedeekay

Makefile

@@ -1,10 +1,29 @@
 
 USER_GH=eyedeekay
-VERSION=0.32.1
+VERSION=0.33.3
+packagename=sam3
 
 echo:
 	@echo "type make version to do release $(VERSION)"
 
 version:
-	gothub release -s $(GITHUB_TOKEN) -u $(USER_GH) -r sam3 -t v$(VERSION) -d "version $(VERSION)"
+	github-release release -s $(GITHUB_TOKEN) -u $(USER_GH) -r $(packagename) -t v$(VERSION) -d "version $(VERSION)"
 
+del:
+	github-release delete -s $(GITHUB_TOKEN) -u $(USER_GH) -r $(packagename) -t v$(VERSION)
+
+tar:
+	tar --exclude .git \
+		--exclude .go \
+		--exclude bin \
+		-cJvf ../$(packagename)_$(VERSION).orig.tar.xz .
+
+copier:
+	echo '#! /usr/bin/env sh' > deb/copy.sh
+	echo 'for f in $$(ls); do scp $$f/*.deb user@192.168.99.106:~/DEBIAN_PKGS/$$f/main/; done' >> deb/copy.sh
+
+fmt:
+	find . -name '*.go' -exec gofmt -w -s {} \;
+
+upload-linux:
+	github-release upload -R -u $(USER_GH) -r "$(packagename)" -t $(VERSION) -l `sha256sum ` -n "$(packagename)" -f "$(packagename)"

README.md

@@ -1,5 +1,17 @@
 # README #
 
+## !!IMPORTANT!!
+
+In the next version, I'll be moving the `i2pkeys` directory to it's own repository
+so I can avoid import cycle headaches. Please migrate to the new `i2pkeys` repository
+before upgrading your sam3 dependencies. You can probably do this by running:
+
+```sh
+find . -name '*.go' -exec sed -i 's|github.com/eyedeekay/sam3/i2pkeys|github.com/eyedeekay/i2pkeys|g' {} \;
+```
+
+# README #
+
 go library for the I2P [SAMv3.0](https://geti2p.net/en/docs/api/samv3) bridge, used to build anonymous/pseudonymous end-to-end encrypted sockets.
 
 This library is much better than ccondom (that use BOB), much more stable and much easier to maintain.
@@ -23,7 +35,7 @@ This library is much better than ccondom (that use BOB), much more stable and mu
 
 **Does not work:**
 
-* Everything works! :D
+* Stream Forwarding
 * Probably needs some real-world testing
 
 ## Documentation ##
@@ -38,16 +50,17 @@ This library is much better than ccondom (that use BOB), much more stable and mu
 package main
 
 import (
-	"github.com/majestrate/i2p-tools/sam3"
+	"github.com/eyedeekay/sam3"
+	"github.com/eyedeekay/sam3/i2pkeys"
 	"fmt"
 )
 
 const yoursam = "127.0.0.1:7656" // sam bridge
 
-func client(server I2PAddr) {
-	sam, _ := NewSAM(yoursam)
+func client(server i2pkeys.I2PAddr) {
+	sam, _ := sam3.NewSAM(yoursam)
 	keys, _ := sam.NewKeys()
-	stream, _ := sam.NewStreamSession("clientTun", keys, Options_Small)
+	stream, _ := sam.NewStreamSession("clientTun", keys, sam3.Options_Small)
 	fmt.Println("Client: Connecting to " + server.Base32())
 	conn, _ := stream.DialI2P(server)
 	conn.Write([]byte("Hello world!"))
@@ -57,9 +70,9 @@ func client(server I2PAddr) {
 func main() {
 	sam, _ := NewSAM(yoursam)
 	keys, _ := sam.NewKeys()
-	go client(keys.Addr())
-	stream, _ := sam.NewStreamSession("serverTun", keys, Options_Medium)
+	stream, _ := sam.NewStreamSession("serverTun", keys, sam3.Options_Medium)
 	listener, _ := stream.Listen()
+	go client(keys.Addr())
 	conn, _ := listener.Accept()
 	buf := make([]byte, 4096)
 	n, _ := conn.Read(buf)
@@ -89,3 +102,5 @@ Public domain.
 
 * Kalle Vedin `kalle.vedin@fripost.org`
 * Unknown Name (majestrate)
+* idk
+* qiwenmin

SAMConn.go

@@ -1,14 +1,15 @@
 package sam3
 
 import (
-	"github.com/eyedeekay/sam3/i2pkeys"
 	"net"
 	"time"
+
+	"github.com/eyedeekay/i2pkeys"
 )
 
 /*
 import (
-	. "github.com/eyedeekay/sam3/i2pkeys"
+	. "github.com/eyedeekay/i2pkeys"
 )
 */
 // Implements net.Conn

config.go

@@ -2,13 +2,301 @@ package sam3
 
 import (
 	"fmt"
+	"math/rand"
 	"net"
 	"strconv"
+	"strings"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
+	"github.com/eyedeekay/i2pkeys"
 )
 
-// sam config
+// I2PConfig is a struct which manages I2P configuration options
+type I2PConfig struct {
+	SamHost string
+	SamPort string
+	TunName string
+
+	SamMin string
+	SamMax string
+
+	Fromport string
+	Toport   string
+
+	Style   string
+	TunType string
+
+	DestinationKeys i2pkeys.I2PKeys
+
+	SigType                   string
+	EncryptLeaseSet           string
+	LeaseSetKey               string
+	LeaseSetPrivateKey        string
+	LeaseSetPrivateSigningKey string
+	LeaseSetKeys              i2pkeys.I2PKeys
+	InAllowZeroHop            string
+	OutAllowZeroHop           string
+	InLength                  string
+	OutLength                 string
+	InQuantity                string
+	OutQuantity               string
+	InVariance                string
+	OutVariance               string
+	InBackupQuantity          string
+	OutBackupQuantity         string
+	FastRecieve               string
+	UseCompression            string
+	MessageReliability        string
+	CloseIdle                 string
+	CloseIdleTime             string
+	ReduceIdle                string
+	ReduceIdleTime            string
+	ReduceIdleQuantity        string
+	//Streaming Library options
+	AccessListType string
+	AccessList     []string
+}
+
+func (f *I2PConfig) Sam() string {
+	host := "127.0.0.1"
+	port := "7656"
+	if f.SamHost != "" {
+		host = f.SamHost
+	}
+	if f.SamPort != "" {
+		port = f.SamPort
+	}
+	return host + ":" + port
+}
+
+func (f *I2PConfig) SetSAMAddress(addr string) {
+	hp := strings.Split(addr, ":")
+	if len(hp) == 1 {
+		f.SamHost = hp[0]
+	} else if len(hp) == 2 {
+		f.SamPort = hp[1]
+		f.SamHost = hp[0]
+	}
+	f.SamPort = "7656"
+	f.SamHost = "127.0.0.1"
+}
+
+func (f *I2PConfig) ID() string {
+	if f.TunName == "" {
+		b := make([]byte, 12)
+		for i := range b {
+			b[i] = "abcdefghijklmnopqrstuvwxyz"[rand.Intn(len("abcdefghijklmnopqrstuvwxyz"))]
+		}
+		f.TunName = string(b)
+	}
+	return " ID=" + f.TunName + " "
+}
+
+func (f *I2PConfig) Leasesetsettings() (string, string, string) {
+	var r, s, t string
+	if f.LeaseSetKey != "" {
+		r = " i2cp.leaseSetKey=" + f.LeaseSetKey + " "
+	}
+	if f.LeaseSetPrivateKey != "" {
+		s = " i2cp.leaseSetPrivateKey=" + f.LeaseSetPrivateKey + " "
+	}
+	if f.LeaseSetPrivateSigningKey != "" {
+		t = " i2cp.leaseSetPrivateSigningKey=" + f.LeaseSetPrivateSigningKey + " "
+	}
+	return r, s, t
+}
+
+func (f *I2PConfig) FromPort() string {
+	if f.samMax() < 3.1 {
+		return ""
+	}
+	if f.Fromport != "0" {
+		return " FROM_PORT=" + f.Fromport + " "
+	}
+	return ""
+}
+
+func (f *I2PConfig) ToPort() string {
+	if f.samMax() < 3.1 {
+		return ""
+	}
+	if f.Toport != "0" {
+		return " TO_PORT=" + f.Toport + " "
+	}
+	return ""
+}
+
+func (f *I2PConfig) SessionStyle() string {
+	if f.Style != "" {
+		return " STYLE=" + f.Style + " "
+	}
+	return " STYLE=STREAM "
+}
+
+func (f *I2PConfig) samMax() float64 {
+	i, err := strconv.Atoi(f.SamMax)
+	if err != nil {
+		return 3.1
+	}
+	return float64(i)
+}
+
+func (f *I2PConfig) MinSAM() string {
+	if f.SamMin == "" {
+		return "3.0"
+	}
+	return f.SamMin
+}
+
+func (f *I2PConfig) MaxSAM() string {
+	if f.SamMax == "" {
+		return "3.1"
+	}
+	return f.SamMax
+}
+
+func (f *I2PConfig) DestinationKey() string {
+	if &f.DestinationKeys != nil {
+		return " DESTINATION=" + f.DestinationKeys.String() + " "
+	}
+	return " DESTINATION=TRANSIENT "
+}
+
+func (f *I2PConfig) SignatureType() string {
+	if f.samMax() < 3.1 {
+		return ""
+	}
+	if f.SigType != "" {
+		return " SIGNATURE_TYPE=" + f.SigType + " "
+	}
+	return ""
+}
+
+func (f *I2PConfig) EncryptLease() string {
+	if f.EncryptLeaseSet == "true" {
+		return " i2cp.encryptLeaseSet=true "
+	}
+	return ""
+}
+
+func (f *I2PConfig) Reliability() string {
+	if f.MessageReliability != "" {
+		return " i2cp.messageReliability=" + f.MessageReliability + " "
+	}
+	return ""
+}
+
+func (f *I2PConfig) Reduce() string {
+	if f.ReduceIdle == "true" {
+		return "i2cp.reduceOnIdle=" + f.ReduceIdle + "i2cp.reduceIdleTime=" + f.ReduceIdleTime + "i2cp.reduceQuantity=" + f.ReduceIdleQuantity
+	}
+	return ""
+}
+
+func (f *I2PConfig) Close() string {
+	if f.CloseIdle == "true" {
+		return "i2cp.closeOnIdle=" + f.CloseIdle + "i2cp.closeIdleTime=" + f.CloseIdleTime
+	}
+	return ""
+}
+
+func (f *I2PConfig) DoZero() string {
+	r := ""
+	if f.InAllowZeroHop == "true" {
+		r += " inbound.allowZeroHop=" + f.InAllowZeroHop + " "
+	}
+	if f.OutAllowZeroHop == "true" {
+		r += " outbound.allowZeroHop= " + f.OutAllowZeroHop + " "
+	}
+	if f.FastRecieve == "true" {
+		r += " " + f.FastRecieve + " "
+	}
+	return r
+}
+func (f *I2PConfig) Print() []string {
+	lsk, lspk, lspsk := f.Leasesetsettings()
+	return []string{
+		//f.targetForPort443(),
+		"inbound.length=" + f.InLength,
+		"outbound.length=" + f.OutLength,
+		"inbound.lengthVariance=" + f.InVariance,
+		"outbound.lengthVariance=" + f.OutVariance,
+		"inbound.backupQuantity=" + f.InBackupQuantity,
+		"outbound.backupQuantity=" + f.OutBackupQuantity,
+		"inbound.quantity=" + f.InQuantity,
+		"outbound.quantity=" + f.OutQuantity,
+		f.DoZero(),
+		//"i2cp.fastRecieve=" + f.FastRecieve,
+		"i2cp.gzip=" + f.UseCompression,
+		f.Reduce(),
+		f.Close(),
+		f.Reliability(),
+		f.EncryptLease(),
+		lsk, lspk, lspsk,
+		f.Accesslisttype(),
+		f.Accesslist(),
+	}
+}
+
+func (f *I2PConfig) Accesslisttype() string {
+	if f.AccessListType == "whitelist" {
+		return "i2cp.enableAccessList=true"
+	} else if f.AccessListType == "blacklist" {
+		return "i2cp.enableBlackList=true"
+	} else if f.AccessListType == "none" {
+		return ""
+	}
+	return ""
+}
+
+func (f *I2PConfig) Accesslist() string {
+	if f.AccessListType != "" && len(f.AccessList) > 0 {
+		r := ""
+		for _, s := range f.AccessList {
+			r += s + ","
+		}
+		return "i2cp.accessList=" + strings.TrimSuffix(r, ",")
+	}
+	return ""
+}
+
+func NewConfig(opts ...func(*I2PConfig) error) (*I2PConfig, error) {
+	var config I2PConfig
+	config.SamHost = "127.0.0.1"
+	config.SamPort = "7656"
+	config.SamMin = "3.0"
+	config.SamMax = "3.2"
+	config.TunName = ""
+	config.TunType = "server"
+	config.Style = "STREAM"
+	config.InLength = "3"
+	config.OutLength = "3"
+	config.InQuantity = "2"
+	config.OutQuantity = "2"
+	config.InVariance = "1"
+	config.OutVariance = "1"
+	config.InBackupQuantity = "3"
+	config.OutBackupQuantity = "3"
+	config.InAllowZeroHop = "false"
+	config.OutAllowZeroHop = "false"
+	config.EncryptLeaseSet = "false"
+	config.LeaseSetKey = ""
+	config.LeaseSetPrivateKey = ""
+	config.LeaseSetPrivateSigningKey = ""
+	config.FastRecieve = "false"
+	config.UseCompression = "true"
+	config.ReduceIdle = "false"
+	config.ReduceIdleTime = "15"
+	config.ReduceIdleQuantity = "4"
+	config.CloseIdle = "false"
+	config.CloseIdleTime = "300000"
+	config.MessageReliability = "none"
+	for _, o := range opts {
+		if err := o(&config); err != nil {
+			return nil, err
+		}
+	}
+	return &config, nil
+}
 
 // options map
 type Options map[string]string
@@ -59,7 +347,7 @@ func (cfg *Config) DatagramSession() (session *DatagramSession, err error) {
 			// determine udp port
 			var portstr string
 			_, portstr, err = net.SplitHostPort(cfg.Addr)
-			if err == nil {
+			if IgnorePortError(err) == nil {
 				var port int
 				port, err = strconv.Atoi(portstr)
 				if err == nil && port > 0 {

datagram.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
+	"github.com/eyedeekay/i2pkeys"
 )
 
 // The DatagramSession implements net.PacketConn. It works almost like ordinary
@@ -33,7 +33,7 @@ func (s *SAM) NewDatagramSession(id string, keys i2pkeys.I2PKeys, options []stri
 	if udpPort == 0 {
 		udpPort = 7655
 	}
-	lhost, _, err := net.SplitHostPort(s.conn.LocalAddr().String())
+	lhost, _, err := SplitHostPort(s.conn.LocalAddr().String())
 	if err != nil {
 		s.Close()
 		return nil, err
@@ -46,7 +46,7 @@ func (s *SAM) NewDatagramSession(id string, keys i2pkeys.I2PKeys, options []stri
 	if err != nil {
 		return nil, err
 	}
-	rhost, _, err := net.SplitHostPort(s.conn.RemoteAddr().String())
+	rhost, _, err := SplitHostPort(s.conn.RemoteAddr().String())
 	if err != nil {
 		s.Close()
 		return nil, err
@@ -56,6 +56,10 @@ func (s *SAM) NewDatagramSession(id string, keys i2pkeys.I2PKeys, options []stri
 		return nil, err
 	}
 	_, lport, err := net.SplitHostPort(udpconn.LocalAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
 	conn, err := s.newGenericSession("DATAGRAM", id, keys, options, []string{"PORT=" + lport})
 	if err != nil {
 		return nil, err
@@ -67,6 +71,33 @@ func (s *DatagramSession) B32() string {
 	return s.keys.Addr().Base32()
 }
 
+func (s *DatagramSession) Dial(net string, addr string) (*DatagramSession, error) {
+	netaddr, err := s.Lookup(addr)
+	if err != nil {
+		return nil, err
+	}
+	return s.DialI2PRemote(net, netaddr)
+}
+
+func (s *DatagramSession) DialRemote(net, addr string) (net.PacketConn, error) {
+	netaddr, err := s.Lookup(addr)
+	if err != nil {
+		return nil, err
+	}
+	return s.DialI2PRemote(net, netaddr)
+}
+
+func (s *DatagramSession) DialI2PRemote(net string, addr net.Addr) (*DatagramSession, error) {
+	switch addr.(type) {
+	case *i2pkeys.I2PAddr:
+		s.remoteAddr = addr.(*i2pkeys.I2PAddr)
+	case i2pkeys.I2PAddr:
+		i2paddr := addr.(i2pkeys.I2PAddr)
+		s.remoteAddr = &i2paddr
+	}
+	return s, nil
+}
+
 func (s *DatagramSession) RemoteAddr() net.Addr {
 	return s.remoteAddr
 }
@@ -108,6 +139,10 @@ func (s *DatagramSession) ReadFrom(b []byte) (n int, addr net.Addr, err error) {
 	}
 }
 
+func (s *DatagramSession) Accept() (net.Conn, error) {
+	return s, nil
+}
+
 func (s *DatagramSession) Read(b []byte) (n int, err error) {
 	rint, _, rerr := s.ReadFrom(b)
 	return rint, rerr
@@ -147,6 +182,10 @@ func (s *DatagramSession) LocalAddr() net.Addr {
 	return s.LocalI2PAddr()
 }
 
+func (s *DatagramSession) Addr() net.Addr {
+	return s.LocalI2PAddr()
+}
+
 func (s *DatagramSession) Lookup(name string) (a net.Addr, err error) {
 	var sam *SAM
 	sam, err = NewSAM(s.samAddr)

datagram_test.go

@@ -1,5 +1,3 @@
-// +build nettest
-
 package sam3
 
 import (

debian/changelog

@@ -1,3 +1,33 @@
+golang-github-eyedeekay-sam3 (0.3.2.32) unreleased; urgency=medium
+
+  [ idk ]
+  * Include "Convenience Functions" in /helper
+
+ -- idk <hankhill19580@gmail.com>  Sun, 22 Nov 2020 12:49:13 -0500
+
+golang-github-eyedeekay-sam3 (0.3.2.31) unreleased; urgency=medium
+
+  [ idk ]
+  * Incorporate address fix from qiwenmin
+  * Shortcut for saving keys to text file
+
+ -- idk <hankhill19580@gmail.com>  Sun, 18 Oct 2020 1:01:03 -0500
+
+golang-github-eyedeekay-sam3 (0.3.2.3) unreleased; urgency=medium
+
+  [ idk ]
+  * Purge ramp, re-release
+
+ -- idk <hankhill19580@gmail.com>  Mon, 22 Jun 2020 17:55:03 -0500
+
+golang-github-eyedeekay-sam3 (0.3.2.2) bionic; urgency=medium
+
+  [ idk ]
+  * Purge ramp
+
+ -- idk <hankhill19580@gmail.com>  Sat, 7 Dec 2019 22:05:34 -0500
+
+
 golang-github-eyedeekay-sam3 (0.3.2.1) bionic; urgency=medium
 
   [ idk ]

debian/control

@@ -5,7 +5,8 @@ Maintainer: Debian Go Packaging Team <team+pkg-go@tracker.debian.org>
 Uploaders: idk <hankhill19580@gmail.com>
 Build-Depends: debhelper (>= 11),
                dh-golang,
-               golang-any
+               git,
+               golang-any | golang-go,
 Standards-Version: 4.2.1
 Homepage: https://github.com/eyedeekay/sam3
 Vcs-Browser: https://github.com/eyedeekay/sam3

debian/files

@@ -1 +1 @@
-golang-github-eyedeekay-sam3_0.3.2.01_source.buildinfo devel optional
+golang-github-eyedeekay-sam3_0.3.2.32_source.buildinfo devel optional

emit-options.go

@@ -0,0 +1,369 @@
+package sam3
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+//Option is a SAMEmit Option
+type Option func(*SAMEmit) error
+
+//SetType sets the type of the forwarder server
+func SetType(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if s == "STREAM" {
+			c.Style = s
+			return nil
+		} else if s == "DATAGRAM" {
+			c.Style = s
+			return nil
+		} else if s == "RAW" {
+			c.Style = s
+			return nil
+		}
+		return fmt.Errorf("Invalid session STYLE=%s, must be STREAM, DATAGRAM, or RAW", s)
+	}
+}
+
+// SetSAMAddress sets the SAM address all-at-once
+func SetSAMAddress(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		sp := strings.Split(s, ":")
+		if len(sp) > 2 {
+			return fmt.Errorf("Invalid address string: %s", sp)
+		}
+		if len(sp) == 2 {
+			c.I2PConfig.SamPort = sp[1]
+		}
+		c.I2PConfig.SamHost = sp[0]
+		return nil
+	}
+}
+
+//SetSAMHost sets the host of the SAMEmit's SAM bridge
+func SetSAMHost(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.SamHost = s
+		return nil
+	}
+}
+
+//SetSAMPort sets the port of the SAMEmit's SAM bridge using a string
+func SetSAMPort(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		port, err := strconv.Atoi(s)
+		if err != nil {
+			return fmt.Errorf("Invalid SAM Port %s; non-number", s)
+		}
+		if port < 65536 && port > -1 {
+			c.I2PConfig.SamPort = s
+			return nil
+		}
+		return fmt.Errorf("Invalid port")
+	}
+}
+
+//SetName sets the host of the SAMEmit's SAM bridge
+func SetName(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.TunName = s
+		return nil
+	}
+}
+
+//SetInLength sets the number of hops inbound
+func SetInLength(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u < 7 && u >= 0 {
+			c.I2PConfig.InLength = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid inbound tunnel length")
+	}
+}
+
+//SetOutLength sets the number of hops outbound
+func SetOutLength(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u < 7 && u >= 0 {
+			c.I2PConfig.OutLength = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid outbound tunnel length")
+	}
+}
+
+//SetInVariance sets the variance of a number of hops inbound
+func SetInVariance(i int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if i < 7 && i > -7 {
+			c.I2PConfig.InVariance = strconv.Itoa(i)
+			return nil
+		}
+		return fmt.Errorf("Invalid inbound tunnel length")
+	}
+}
+
+//SetOutVariance sets the variance of a number of hops outbound
+func SetOutVariance(i int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if i < 7 && i > -7 {
+			c.I2PConfig.OutVariance = strconv.Itoa(i)
+			return nil
+		}
+		return fmt.Errorf("Invalid outbound tunnel variance")
+	}
+}
+
+//SetInQuantity sets the inbound tunnel quantity
+func SetInQuantity(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u <= 16 && u > 0 {
+			c.I2PConfig.InQuantity = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid inbound tunnel quantity")
+	}
+}
+
+//SetOutQuantity sets the outbound tunnel quantity
+func SetOutQuantity(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u <= 16 && u > 0 {
+			c.I2PConfig.OutQuantity = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid outbound tunnel quantity")
+	}
+}
+
+//SetInBackups sets the inbound tunnel backups
+func SetInBackups(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u < 6 && u >= 0 {
+			c.I2PConfig.InBackupQuantity = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid inbound tunnel backup quantity")
+	}
+}
+
+//SetOutBackups sets the inbound tunnel backups
+func SetOutBackups(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u < 6 && u >= 0 {
+			c.I2PConfig.OutBackupQuantity = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid outbound tunnel backup quantity")
+	}
+}
+
+//SetEncrypt tells the router to use an encrypted leaseset
+func SetEncrypt(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.EncryptLeaseSet = "true"
+			return nil
+		}
+		c.I2PConfig.EncryptLeaseSet = "false"
+		return nil
+	}
+}
+
+//SetLeaseSetKey sets the host of the SAMEmit's SAM bridge
+func SetLeaseSetKey(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.LeaseSetKey = s
+		return nil
+	}
+}
+
+//SetLeaseSetPrivateKey sets the host of the SAMEmit's SAM bridge
+func SetLeaseSetPrivateKey(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.LeaseSetPrivateKey = s
+		return nil
+	}
+}
+
+//SetLeaseSetPrivateSigningKey sets the host of the SAMEmit's SAM bridge
+func SetLeaseSetPrivateSigningKey(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.LeaseSetPrivateSigningKey = s
+		return nil
+	}
+}
+
+//SetMessageReliability sets the host of the SAMEmit's SAM bridge
+func SetMessageReliability(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.MessageReliability = s
+		return nil
+	}
+}
+
+//SetAllowZeroIn tells the tunnel to accept zero-hop peers
+func SetAllowZeroIn(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.InAllowZeroHop = "true"
+			return nil
+		}
+		c.I2PConfig.InAllowZeroHop = "false"
+		return nil
+	}
+}
+
+//SetAllowZeroOut tells the tunnel to accept zero-hop peers
+func SetAllowZeroOut(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.OutAllowZeroHop = "true"
+			return nil
+		}
+		c.I2PConfig.OutAllowZeroHop = "false"
+		return nil
+	}
+}
+
+//SetCompress tells clients to use compression
+func SetCompress(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.UseCompression = "true"
+			return nil
+		}
+		c.I2PConfig.UseCompression = "false"
+		return nil
+	}
+}
+
+//SetFastRecieve tells clients to use compression
+func SetFastRecieve(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.FastRecieve = "true"
+			return nil
+		}
+		c.I2PConfig.FastRecieve = "false"
+		return nil
+	}
+}
+
+//SetReduceIdle tells the connection to reduce it's tunnels during extended idle time.
+func SetReduceIdle(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.ReduceIdle = "true"
+			return nil
+		}
+		c.I2PConfig.ReduceIdle = "false"
+		return nil
+	}
+}
+
+//SetReduceIdleTime sets the time to wait before reducing tunnels to idle levels
+func SetReduceIdleTime(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.ReduceIdleTime = "300000"
+		if u >= 6 {
+			c.I2PConfig.ReduceIdleTime = strconv.Itoa((u * 60) * 1000)
+			return nil
+		}
+		return fmt.Errorf("Invalid reduce idle timeout(Measured in minutes) %v", u)
+	}
+}
+
+//SetReduceIdleTimeMs sets the time to wait before reducing tunnels to idle levels in milliseconds
+func SetReduceIdleTimeMs(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.ReduceIdleTime = "300000"
+		if u >= 300000 {
+			c.I2PConfig.ReduceIdleTime = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid reduce idle timeout(Measured in milliseconds) %v", u)
+	}
+}
+
+//SetReduceIdleQuantity sets minimum number of tunnels to reduce to during idle time
+func SetReduceIdleQuantity(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if u < 5 {
+			c.I2PConfig.ReduceIdleQuantity = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid reduce tunnel quantity")
+	}
+}
+
+//SetCloseIdle tells the connection to close it's tunnels during extended idle time.
+func SetCloseIdle(b bool) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if b {
+			c.I2PConfig.CloseIdle = "true"
+			return nil
+		}
+		c.I2PConfig.CloseIdle = "false"
+		return nil
+	}
+}
+
+//SetCloseIdleTime sets the time to wait before closing tunnels to idle levels
+func SetCloseIdleTime(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.CloseIdleTime = "300000"
+		if u >= 6 {
+			c.I2PConfig.CloseIdleTime = strconv.Itoa((u * 60) * 1000)
+			return nil
+		}
+		return fmt.Errorf("Invalid close idle timeout(Measured in minutes) %v", u)
+	}
+}
+
+//SetCloseIdleTimeMs sets the time to wait before closing tunnels to idle levels in milliseconds
+func SetCloseIdleTimeMs(u int) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		c.I2PConfig.CloseIdleTime = "300000"
+		if u >= 300000 {
+			c.I2PConfig.CloseIdleTime = strconv.Itoa(u)
+			return nil
+		}
+		return fmt.Errorf("Invalid close idle timeout(Measured in milliseconds) %v", u)
+	}
+}
+
+//SetAccessListType tells the system to treat the AccessList as a whitelist
+func SetAccessListType(s string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if s == "whitelist" {
+			c.I2PConfig.AccessListType = "whitelist"
+			return nil
+		} else if s == "blacklist" {
+			c.I2PConfig.AccessListType = "blacklist"
+			return nil
+		} else if s == "none" {
+			c.I2PConfig.AccessListType = ""
+			return nil
+		} else if s == "" {
+			c.I2PConfig.AccessListType = ""
+			return nil
+		}
+		return fmt.Errorf("Invalid Access list type(whitelist, blacklist, none)")
+	}
+}
+
+//SetAccessList tells the system to treat the AccessList as a whitelist
+func SetAccessList(s []string) func(*SAMEmit) error {
+	return func(c *SAMEmit) error {
+		if len(s) > 0 {
+			for _, a := range s {
+				c.I2PConfig.AccessList = append(c.I2PConfig.AccessList, a)
+			}
+			return nil
+		}
+		return nil
+	}
+}

emit.go

@@ -0,0 +1,122 @@
+package sam3
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"strings"
+)
+
+type SAMEmit struct {
+	I2PConfig
+}
+
+func (e *SAMEmit) OptStr() string {
+	optStr := ""
+	for _, opt := range e.I2PConfig.Print() {
+		optStr += opt + " "
+	}
+	return optStr
+}
+
+func (e *SAMEmit) Hello() string {
+	return fmt.Sprintf("HELLO VERSION MIN=%s MAX=%s \n", e.I2PConfig.MinSAM(), e.I2PConfig.MaxSAM())
+}
+
+func (e *SAMEmit) HelloBytes() []byte {
+	return []byte(e.Hello())
+}
+
+func (e *SAMEmit) GenerateDestination() string {
+	return fmt.Sprintf("DEST GENERATE %s \n", e.I2PConfig.SignatureType())
+}
+
+func (e *SAMEmit) GenerateDestinationBytes() []byte {
+	return []byte(e.GenerateDestination())
+}
+
+func (e *SAMEmit) Lookup(name string) string {
+	return fmt.Sprintf("NAMING LOOKUP NAME=%s \n", name)
+}
+
+func (e *SAMEmit) LookupBytes(name string) []byte {
+	return []byte(e.Lookup(name))
+}
+
+func (e *SAMEmit) Create() string {
+	return fmt.Sprintf(
+		//             //1 2 3 4 5 6 7
+		"SESSION CREATE %s%s%s%s%s%s%s \n",
+		e.I2PConfig.SessionStyle(),   //1
+		e.I2PConfig.FromPort(),       //2
+		e.I2PConfig.ToPort(),         //3
+		e.I2PConfig.ID(),             //4
+		e.I2PConfig.DestinationKey(), // 5
+		e.I2PConfig.SignatureType(),  // 6
+		e.OptStr(),                   // 7
+	)
+}
+
+func (e *SAMEmit) CreateBytes() []byte {
+	log.Println("sam command: " + e.Create())
+	return []byte(e.Create())
+}
+
+func (e *SAMEmit) Connect(dest string) string {
+	return fmt.Sprintf(
+		"STREAM CONNECT ID=%s %s %s DESTINATION=%s \n",
+		e.I2PConfig.ID(),
+		e.I2PConfig.FromPort(),
+		e.I2PConfig.ToPort(),
+		dest,
+	)
+}
+
+func (e *SAMEmit) ConnectBytes(dest string) []byte {
+	return []byte(e.Connect(dest))
+}
+
+func (e *SAMEmit) Accept() string {
+	return fmt.Sprintf(
+		"STREAM ACCEPT ID=%s %s %s",
+		e.I2PConfig.ID(),
+		e.I2PConfig.FromPort(),
+		e.I2PConfig.ToPort(),
+	)
+}
+
+func (e *SAMEmit) AcceptBytes() []byte {
+	return []byte(e.Accept())
+}
+
+func NewEmit(opts ...func(*SAMEmit) error) (*SAMEmit, error) {
+	var emit SAMEmit
+	for _, o := range opts {
+		if err := o(&emit); err != nil {
+			return nil, err
+		}
+	}
+	return &emit, nil
+}
+
+func IgnorePortError(err error) error {
+	if err == nil {
+		return nil
+	}
+	if strings.Contains(err.Error(), "missing port in address") {
+		err = nil
+	}
+	return err
+}
+
+func SplitHostPort(hostport string) (string, string, error) {
+	host, port, err := net.SplitHostPort(hostport)
+	if err != nil {
+		if IgnorePortError(err) == nil {
+			log.Println("host: " + hostport)
+			host = hostport
+			port = "0"
+		}
+	}
+	return host, port, nil
+}

go.mod

@@ -2,4 +2,12 @@ module github.com/eyedeekay/sam3
 
 go 1.12
 
-require github.com/eyedeekay/ramp v0.0.0-20190429201811-305b382042ab
+require (
+	github.com/eyedeekay/goSam v0.32.31-0.20210122211817-f97683379f23
+	github.com/eyedeekay/i2pkeys v0.0.0-20220310052025-204d4ae6dcae // indirect
+	github.com/google/renameio v1.0.0 // indirect
+	github.com/riobard/go-x25519 v0.0.0-20190716001027-10cc4d8d0b33
+	github.com/rogpeppe/go-internal v1.6.2 // indirect
+	golang.org/x/tools v0.0.0-20201125231158-b5590deeca9b // indirect
+	honnef.co/go/tools v0.0.1-2020.1.6 // indirect
+)

go.sum

@@ -1,2 +1,90 @@
-github.com/eyedeekay/ramp v0.0.0-20190429201811-305b382042ab h1:EfTRHxGSbiaEyxNzvKRBWVIDw3mD8xXGxj4gvwFzY7Q=
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+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
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+github.com/cryptix/go v1.3.1 h1:I9opbROgEpldI0PwkMku0UY2DLFYgelZd9u0uaxmMgY=
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+gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
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helper/helper.go

@@ -0,0 +1,125 @@
+package sam
+
+import (
+	"io/ioutil"
+	"log"
+	"net"
+	"os"
+
+	"github.com/eyedeekay/i2pkeys"
+	"github.com/eyedeekay/sam3"
+)
+
+func NetListener(name, samaddr, keyspath string) (net.Listener, error) {
+	return I2PListener(name, sam3.SAMDefaultAddr(samaddr), keyspath)
+}
+
+// I2PListener is a convenience function which takes a SAM tunnel name, a SAM address and a filename.
+// If the file contains I2P keys, it will create a service using that address. If the file does not
+// exist, keys will be generated and stored in that file.
+func I2PListener(name, samaddr, keyspath string) (*sam3.StreamListener, error) {
+	log.Printf("Starting and registering I2P service, please wait a couple of minutes...")
+	listener, err := I2PStreamSession(name, sam3.SAMDefaultAddr(samaddr), keyspath)
+
+	if keyspath != "" {
+		err = ioutil.WriteFile(keyspath+".i2p.public.txt", []byte(listener.Keys().Addr().Base32()), 0644)
+		if err != nil {
+			log.Fatalf("error storing I2P base32 address in adjacent text file, %s", err)
+		}
+	}
+	log.Printf("Listening on: %s", listener.Addr().Base32())
+	return listener.Listen()
+}
+
+// I2PStreamSession is a convenience function which returns a sam3.StreamSession instead
+// of a sam3.StreamListener. It also takes care of setting a persisitent key on behalf
+// of the user.
+func I2PStreamSession(name, samaddr, keyspath string) (*sam3.StreamSession, error) {
+	log.Printf("Starting and registering I2P session...")
+	sam, err := sam3.NewSAM(sam3.SAMDefaultAddr(samaddr))
+	if err != nil {
+		log.Fatalf("error connecting to SAM to %s: %s", sam3.SAMDefaultAddr(samaddr), err)
+	}
+	keys, err := GenerateOrLoadKeys(keyspath, sam)
+	if err != nil {
+		return nil, err
+	}
+	stream, err := sam.NewStreamSession(name, *keys, sam3.Options_Medium)
+	return stream, err
+}
+
+// I2PDataGramsession is a convenience function which returns a sam3.DatagramSession.
+// It also takes care of setting a persisitent key on behalf of the user.
+func I2PDatagramSession(name, samaddr, keyspath string) (*sam3.DatagramSession, error) {
+	log.Printf("Starting and registering I2P session...")
+	sam, err := sam3.NewSAM(sam3.SAMDefaultAddr(samaddr))
+	if err != nil {
+		log.Fatalf("error connecting to SAM to %s: %s", sam3.SAMDefaultAddr(samaddr), err)
+	}
+	keys, err := GenerateOrLoadKeys(keyspath, sam)
+	if err != nil {
+		return nil, err
+	}
+	gram, err := sam.NewDatagramSession(name, *keys, sam3.Options_Medium, 0)
+	return gram, err
+}
+
+// I2PPrimarySession is a convenience function which returns a sam3.PrimarySession.
+// It also takes care of setting a persisitent key on behalf of the user.
+func I2PPrimarySession(name, samaddr, keyspath string) (*sam3.PrimarySession, error) {
+	log.Printf("Starting and registering I2P session...")
+	sam, err := sam3.NewSAM(sam3.SAMDefaultAddr(samaddr))
+	if err != nil {
+		log.Fatalf("error connecting to SAM to %s: %s", sam3.SAMDefaultAddr(samaddr), err)
+	}
+	keys, err := GenerateOrLoadKeys(keyspath, sam)
+	if err != nil {
+		return nil, err
+	}
+	gram, err := sam.NewPrimarySession(name, *keys, sam3.Options_Medium)
+	return gram, err
+}
+
+// GenerateOrLoadKeys is a convenience function which takes a filename and a SAM session.
+// if the SAM session is nil, a new one will be created with the defaults.
+// The keyspath must be the path to a place to store I2P keys. The keyspath will be suffixed with
+// .i2p.private for the private keys, and public.txt for the b32 addresses.
+// If the keyspath.i2p.private file does not exist, keys will be generated and stored in that file.
+// if the keyspath.i2p.private does exist, keys will be loaded from that location and returned
+func GenerateOrLoadKeys(keyspath string, sam *sam3.SAM) (keys *i2pkeys.I2PKeys, err error) {
+	if sam == nil {
+		sam, err = sam3.NewSAM(sam3.SAMDefaultAddr("127.0.0.1:7656"))
+		if err != nil {
+			return nil, err
+		}
+	}
+	if _, err := os.Stat(keyspath + ".i2p.private"); os.IsNotExist(err) {
+		f, err := os.Create(keyspath + ".i2p.private")
+		if err != nil {
+			log.Fatalf("unable to open I2P keyfile for writing: %s", err)
+		}
+		defer f.Close()
+		tkeys, err := sam.NewKeys()
+		if err != nil {
+			log.Fatalf("unable to generate I2P Keys, %s", err)
+		}
+		keys = &tkeys
+		err = i2pkeys.StoreKeysIncompat(*keys, f)
+		if err != nil {
+			log.Fatalf("unable to save newly generated I2P Keys, %s", err)
+		}
+	} else {
+		tkeys, err := i2pkeys.LoadKeys(keyspath + ".i2p.private")
+		if err != nil {
+			log.Fatalf("unable to load I2P Keys: %e", err)
+		}
+		keys = &tkeys
+	}
+	return keys, nil
+}
+
+// GenerateKeys is a shorter version of GenerateOrLoadKeys which generates keys and stores them in a file.
+// it always uses a new default SAM session.
+func GenerateKeys(keyspath string) (keys *i2pkeys.I2PKeys, err error) {
+	return GenerateOrLoadKeys(keyspath, nil)
+}

i2pkeys/I2PAddr.go

@@ -1,198 +0,0 @@
-package i2pkeys
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"encoding/base32"
-	"encoding/base64"
-	"errors"
-	"io"
-	"strings"
-)
-
-var (
-	i2pB64enc *base64.Encoding = base64.NewEncoding("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-~")
-	i2pB32enc *base32.Encoding = base32.NewEncoding("abcdefghijklmnopqrstuvwxyz234567")
-)
-
-// The public and private keys associated with an I2P destination. I2P hides the
-// details of exactly what this is, so treat them as blobs, but generally: One
-// pair of DSA keys, one pair of ElGamal keys, and sometimes (almost never) also
-// a certificate. String() returns you the full content of I2PKeys and Addr()
-// returns the public keys.
-type I2PKeys struct {
-	Address I2PAddr // only the public key
-	Both    string  // both public and private keys
-}
-
-// Creates I2PKeys from an I2PAddr and a public/private keypair string (as
-// generated by String().)
-func NewKeys(addr I2PAddr, both string) I2PKeys {
-	return I2PKeys{addr, both}
-}
-
-// load keys from non standard format
-func LoadKeysIncompat(r io.Reader) (k I2PKeys, err error) {
-	var buff bytes.Buffer
-	_, err = io.Copy(&buff, r)
-	if err == nil {
-		parts := strings.Split(buff.String(), "\n")
-		k = I2PKeys{I2PAddr(parts[0]), parts[1]}
-	}
-	return
-}
-
-// store keys in non standard format
-func StoreKeysIncompat(k I2PKeys, w io.Writer) (err error) {
-	_, err = io.WriteString(w, k.Address.Base64()+"\n"+k.Both)
-	return
-}
-
-// Returns the public keys of the I2PKeys.
-func (k I2PKeys) Addr() I2PAddr {
-	return k.Address
-}
-
-// Returns the keys (both public and private), in I2Ps base64 format. Use this
-// when you create sessions.
-func (k I2PKeys) String() string {
-	return k.Both
-}
-
-// I2PAddr represents an I2P destination, almost equivalent to an IP address.
-// This is the humongously huge base64 representation of such an address, which
-// really is just a pair of public keys and also maybe a certificate. (I2P hides
-// the details of exactly what it is. Read the I2P specifications for more info.)
-type I2PAddr string
-
-// an i2p destination hash, the .b32.i2p address if you will
-type I2PDestHash [32]byte
-
-// create a desthash from a string b32.i2p address
-func DestHashFromString(str string) (dhash I2PDestHash, err error) {
-	if strings.HasSuffix(str, ".b32.i2p") && len(str) == 60 {
-		// valid
-		_, err = i2pB32enc.Decode(dhash[:], []byte(str[:52]+"===="))
-	} else {
-		// invalid
-		err = errors.New("invalid desthash format")
-	}
-	return
-}
-
-// get string representation of i2p dest hash(base32 version)
-func (h I2PDestHash) String() string {
-	b32addr := make([]byte, 56)
-	i2pB32enc.Encode(b32addr, h[:])
-	return string(b32addr[:52]) + ".b32.i2p"
-}
-
-// get base64 representation of i2p dest sha256 hash(the 44-character one)
-func (h I2PDestHash) Hash() string {
-	hash := sha256.New()
-	hash.Write(h[:])
-	digest := hash.Sum(nil)
-	buf := make([]byte, 44)
-	i2pB64enc.Encode(buf, digest)
-	return string(buf)
-}
-
-// Returns "I2P"
-func (h *I2PDestHash) Network() string {
-	return "I2P"
-}
-
-// Returns the base64 representation of the I2PAddr
-func (a I2PAddr) Base64() string {
-	return string(a)
-}
-
-// Returns the I2P destination (base64-encoded)
-func (a I2PAddr) String() string {
-	return string(a)
-}
-
-// Returns "I2P"
-func (a I2PAddr) Network() string {
-	return "I2P"
-}
-
-// Creates a new I2P address from a base64-encoded string. Checks if the address
-// addr is in correct format. (If you know for sure it is, use I2PAddr(addr).)
-func NewI2PAddrFromString(addr string) (I2PAddr, error) {
-	if strings.HasSuffix(addr, ".i2p") {
-		if strings.HasSuffix(addr, ".b32.i2p") {
-			return I2PAddr(""), errors.New("cannot convert .b32.i2p to full destination")
-		}
-		// strip off .i2p if it's there
-		addr = addr[:len(addr)-4]
-	}
-	addr = strings.Trim(addr, "\t\n\r\f ")
-	// very basic check
-	if len(addr) > 4096 || len(addr) < 516 {
-		return I2PAddr(""), errors.New("Not an I2P address")
-	}
-	buf := make([]byte, i2pB64enc.DecodedLen(len(addr)))
-	if _, err := i2pB64enc.Decode(buf, []byte(addr)); err != nil {
-		return I2PAddr(""), errors.New("Address is not base64-encoded")
-	}
-	return I2PAddr(addr), nil
-}
-
-func FiveHundredAs() I2PAddr {
-	s := ""
-	for x := 0; x < 517; x++ {
-		s += "A"
-	}
-	r, _ := NewI2PAddrFromString(s)
-	return r
-}
-
-// Creates a new I2P address from a byte array. The inverse of ToBytes().
-func NewI2PAddrFromBytes(addr []byte) (I2PAddr, error) {
-	if len(addr) > 4096 || len(addr) < 384 {
-		return I2PAddr(""), errors.New("Not an I2P address")
-	}
-	buf := make([]byte, i2pB64enc.EncodedLen(len(addr)))
-	i2pB64enc.Encode(buf, addr)
-	return I2PAddr(string(buf)), nil
-}
-
-// Turns an I2P address to a byte array. The inverse of NewI2PAddrFromBytes().
-func (addr I2PAddr) ToBytes() ([]byte, error) {
-	buf := make([]byte, i2pB64enc.DecodedLen(len(addr)))
-	if _, err := i2pB64enc.Decode(buf, []byte(addr)); err != nil {
-		return buf, errors.New("Address is not base64-encoded")
-	}
-	return buf, nil
-}
-
-func (addr I2PAddr) Bytes() []byte {
-	b, _ := addr.ToBytes()
-	return b
-}
-
-// Returns the *.b32.i2p address of the I2P address. It is supposed to be a
-// somewhat human-manageable 64 character long pseudo-domain name equivalent of
-// the 516+ characters long default base64-address (the I2PAddr format). It is
-// not possible to turn the base32-address back into a usable I2PAddr without
-// performing a Lookup(). Lookup only works if you are using the I2PAddr from
-// which the b32 address was generated.
-func (addr I2PAddr) Base32() (str string) {
-	return addr.DestHash().String()
-}
-
-func (addr I2PAddr) DestHash() (h I2PDestHash) {
-	hash := sha256.New()
-	b, _ := addr.ToBytes()
-	hash.Write(b)
-	digest := hash.Sum(nil)
-	copy(h[:], digest)
-	return
-}
-
-// Makes any string into a *.b32.i2p human-readable I2P address. This makes no
-// sense, unless "anything" is an I2P destination of some sort.
-func Base32(anything string) string {
-	return I2PAddr(anything).Base32()
-}

index.html

@@ -0,0 +1,296 @@
+<html>
+  <head>
+    <title>
+      README
+    </title>
+    <meta name="author" content="eyedeekay" />
+    <meta name="description" content="sam3" />
+    <meta name="keywords" content="master" />
+    <link rel="stylesheet" type="text/css" href="style.css" />
+  </head>
+  <body>
+    <div id="navbar">
+      <a href="#shownav">
+        Show navigation
+      </a>
+      <div id="shownav">
+        <div id="hidenav">
+          <ul>
+            <li>
+              <a href="index.html">
+                index
+              </a>
+            </li>
+          </ul>
+          <br>
+          <a href="#hidenav">
+            Hide Navigation
+          </a>
+        </div>
+      </div>
+    </div>
+    <h1>
+      <a href="/">
+        README
+      </a>
+    </h1>
+    <h2>
+      !!IMPORTANT!!
+    </h2>
+    <p>
+      In the next version, I’ll be moving the
+      <code>
+        i2pkeys
+      </code>
+      directory to it’s own repository
+      so I can avoid import cycle headaches. Please migrate to the new
+      <code>
+        i2pkeys
+      </code>
+      repository
+      before upgrading your sam3 dependencies. You can probably do this by running:
+    </p>
+    <pre><code>find . -name &#39;*.go&#39; -exec sed -i &#39;s|github.com/eyedeekay/sam3/i2pkeys|github.com/eyedeekay/i2pkeys|g&#39; {} \;
+</code></pre>
+    <h1>
+      README
+    </h1>
+    <p>
+      go library for the I2P
+      <a href="https://geti2p.net/en/docs/api/samv3" rel="nofollow">
+        SAMv3.0
+      </a>
+      bridge, used to build anonymous/pseudonymous end-to-end encrypted sockets.
+    </p>
+    <p>
+      This library is much better than ccondom (that use BOB), much more stable and much easier to maintain.
+    </p>
+    <h2>
+      Support/TODO
+    </h2>
+    <p>
+      <strong>
+        What works:
+      </strong>
+    </p>
+    <ul>
+      <li>
+        Utils
+        <ul>
+          <li>
+            Resolving domain names to I2P destinations
+          </li>
+          <li>
+            .b32.i2p hashes
+          </li>
+          <li>
+            Generating keys/i2p destinations
+          </li>
+        </ul>
+      </li>
+      <li>
+        Streaming
+        <ul>
+          <li>
+            DialI2P() - Connecting to stuff in I2P
+          </li>
+          <li>
+            Listen()/Accept() - Handling incomming connections
+          </li>
+          <li>
+            Implements net.Conn and net.Listener
+          </li>
+        </ul>
+      </li>
+      <li>
+        Datagrams
+        <ul>
+          <li>
+            Implements net.PacketConn
+          </li>
+        </ul>
+      </li>
+      <li>
+        Raw datagrams
+        <ul>
+          <li>
+            Like datagrams, but without addresses
+          </li>
+        </ul>
+      </li>
+    </ul>
+    <p>
+      <strong>
+        Does not work:
+      </strong>
+    </p>
+    <ul>
+      <li>
+        Stream Forwarding
+      </li>
+      <li>
+        Probably needs some real-world testing
+      </li>
+    </ul>
+    <h2>
+      Documentation
+    </h2>
+    <ul>
+      <li>
+        Latest version-documentation:
+        <ul>
+          <li>
+            set your GOPATH
+          </li>
+          <li>
+            Enter
+            <code>
+              godoc -http=:8081
+            </code>
+            into your terminal and hit enter.
+          </li>
+          <li>
+            Goto
+            <a href="http://localhost:8081" rel="nofollow">
+              http://localhost:8081
+            </a>
+            , click packages, and navigate to sam3
+          </li>
+        </ul>
+      </li>
+    </ul>
+    <h2>
+      Examples
+    </h2>
+    <pre><code>package main
+
+import (
+	&#34;github.com/eyedeekay/sam3&#34;
+	&#34;github.com/eyedeekay/sam3/i2pkeys&#34;
+	&#34;fmt&#34;
+)
+
+const yoursam = &#34;127.0.0.1:7656&#34; // sam bridge
+
+func client(server i2pkeys.I2PAddr) {
+	sam, _ := sam3.NewSAM(yoursam)
+	keys, _ := sam.NewKeys()
+	stream, _ := sam.NewStreamSession(&#34;clientTun&#34;, keys, sam3.Options_Small)
+	fmt.Println(&#34;Client: Connecting to &#34; + server.Base32())
+	conn, _ := stream.DialI2P(server)
+	conn.Write([]byte(&#34;Hello world!&#34;))
+	return
+}
+
+func main() {
+	sam, _ := NewSAM(yoursam)
+	keys, _ := sam.NewKeys()
+	stream, _ := sam.NewStreamSession(&#34;serverTun&#34;, keys, sam3.Options_Medium)
+	listener, _ := stream.Listen()
+	go client(keys.Addr())
+	conn, _ := listener.Accept()
+	buf := make([]byte, 4096)
+	n, _ := conn.Read(buf)
+	fmt.Println(&#34;Server received: &#34; + string(buf[:n]))
+}
+</code></pre>
+    <p>
+      The above will write to the terminal:
+    </p>
+    <pre><code>Client: Connecting to zjnvfh4hs3et5vtz35ogwzrws26zvwkcad5uo5esecvg4qpk5b4a.b32.i2p
+Server received: Hello world!
+</code></pre>
+    <p>
+      Error handling was omitted in the above code for readability.
+    </p>
+    <h2>
+      Testing
+    </h2>
+    <ul>
+      <li>
+        <code>
+          go test -tags=nettest
+        </code>
+        runs the whole suite (takes 90+ sec to perform!)
+      </li>
+      <li>
+        <code>
+          go test -short
+        </code>
+        runs the shorter variant, does not connect to anything
+      </li>
+    </ul>
+    <h2>
+      License
+    </h2>
+    <p>
+      Public domain.
+    </p>
+    <h2>
+      Author
+    </h2>
+    <ul>
+      <li>
+        Kalle Vedin
+        <code>
+          kalle.vedin@fripost.org
+        </code>
+      </li>
+      <li>
+        Unknown Name (majestrate)
+      </li>
+      <li>
+        idk
+      </li>
+      <li>
+        qiwenmin
+      </li>
+    </ul>
+    <div>
+      <a href="#show">
+        Show license
+      </a>
+      <div id="show">
+        <div id="hide">
+          <pre><code>This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
+</code></pre>
+          <a href="#hide">
+            Hide license
+          </a>
+        </div>
+      </div>
+    </div>
+    <div>
+      <iframe src="https://snowflake.torproject.org/embed.html" width="320" height="240" frameborder="0" scrolling="no"></iframe>
+    </div>
+    <div>
+      <a href="https://geti2p.net/">
+        <img src="i2plogo.png"></img>
+        I2P
+      </a>
+    </div>
+  </body>
+</html>

primary.go

@@ -0,0 +1,394 @@
+package sam3
+
+import (
+	"errors"
+	"fmt"
+	"math/rand"
+	"net"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/eyedeekay/i2pkeys"
+)
+
+const (
+	session_ADDOK = "SESSION STATUS RESULT=OK"
+)
+
+func randport() string {
+	s := rand.NewSource(time.Now().UnixNano())
+	r := rand.New(s)
+	p := r.Intn(55534) + 10000
+	return strconv.Itoa(p)
+}
+
+// Represents a primary session.
+type PrimarySession struct {
+	samAddr  string          // address to the sam bridge (ipv4:port)
+	id       string          // tunnel name
+	conn     net.Conn        // connection to sam
+	keys     i2pkeys.I2PKeys // i2p destination keys
+	Timeout  time.Duration
+	Deadline time.Time
+	sigType  string
+	Config   SAMEmit
+	stsess   map[string]*StreamSession
+	dgsess   map[string]*DatagramSession
+	//	from     string
+	//	to       string
+}
+
+func (ss *PrimarySession) From() string {
+	return "0"
+}
+
+func (ss *PrimarySession) To() string {
+	return "0"
+}
+
+func (ss *PrimarySession) SignatureType() string {
+	return ss.sigType
+}
+
+// Returns the local tunnel name of the I2P tunnel used for the stream session
+func (ss *PrimarySession) ID() string {
+	return ss.id
+}
+
+func (ss *PrimarySession) Close() error {
+	return ss.conn.Close()
+}
+
+// Returns the I2P destination (the address) of the stream session
+func (ss *PrimarySession) Addr() i2pkeys.I2PAddr {
+	return ss.keys.Addr()
+}
+
+func (ss *PrimarySession) LocalAddr() net.Addr {
+	aa := ss.keys.Addr()
+	return &aa
+}
+
+// Returns the keys associated with the stream session
+func (ss *PrimarySession) Keys() i2pkeys.I2PKeys {
+	return ss.keys
+}
+
+func (sam *PrimarySession) Dial(network, addr string) (net.Conn, error) {
+	if network == "udp" || network == "udp4" || network == "udp6" {
+		//return sam.DialUDPI2P(network, network+addr[0:4], addr)
+		return sam.DialUDPI2P(network, network+addr[0:4], addr)
+	}
+	if network == "tcp" || network == "tcp4" || network == "tcp6" {
+		//return sam.DialTCPI2P(network, network+addr[0:4], addr)
+		return sam.DialTCPI2P(network, network+addr[0:4], addr)
+	}
+	return nil, fmt.Errorf("Error: Must specify a valid network type")
+}
+
+// DialTCP implements x/dialer
+func (sam *PrimarySession) DialTCP(network string, laddr, raddr net.Addr) (net.Conn, error) {
+	ts, ok := sam.stsess[network+raddr.String()[0:4]]
+	var err error
+	if !ok {
+		ts, err = sam.NewUniqueStreamSubSession(network + raddr.String()[0:4])
+		if err != nil {
+			return nil, err
+		}
+		sam.stsess[network+raddr.String()[0:4]] = ts
+		ts, _ = sam.stsess[network+raddr.String()[0:4]]
+	}
+	return ts.Dial(network, raddr.String())
+}
+
+func (sam *PrimarySession) DialTCPI2P(network string, laddr, raddr string) (net.Conn, error) {
+	ts, ok := sam.stsess[network+raddr[0:4]]
+	var err error
+	if !ok {
+		ts, err = sam.NewUniqueStreamSubSession(network + laddr)
+		if err != nil {
+			return nil, err
+		}
+		sam.stsess[network+raddr[0:4]] = ts
+		ts, _ = sam.stsess[network+raddr[0:4]]
+	}
+	return ts.Dial(network, raddr)
+}
+
+// DialUDP implements x/dialer
+func (sam *PrimarySession) DialUDP(network string, laddr, raddr net.Addr) (net.PacketConn, error) {
+	ds, ok := sam.dgsess[network+raddr.String()[0:4]]
+	var err error
+	if !ok {
+		ds, err = sam.NewDatagramSubSession(network+raddr.String()[0:4], 0)
+		if err != nil {
+			return nil, err
+		}
+		sam.dgsess[network+raddr.String()[0:4]] = ds
+		ds, _ = sam.dgsess[network+raddr.String()[0:4]]
+	}
+	return ds.Dial(network, raddr.String())
+}
+
+func (sam *PrimarySession) DialUDPI2P(network, laddr, raddr string) (*DatagramSession, error) {
+	ds, ok := sam.dgsess[network+raddr[0:4]]
+	var err error
+	if !ok {
+		ds, err = sam.NewDatagramSubSession(network+laddr, 0)
+		if err != nil {
+			return nil, err
+		}
+		sam.dgsess[network+raddr[0:4]] = ds
+		ds, _ = sam.dgsess[network+raddr[0:4]]
+	}
+	return ds.Dial(network, raddr)
+}
+
+func (s *PrimarySession) Lookup(name string) (a net.Addr, err error) {
+	var sam *SAM
+	name = strings.Split(name, ":")[0]
+	sam, err = NewSAM(s.samAddr)
+	if err == nil {
+		defer sam.Close()
+		a, err = sam.Lookup(name)
+	}
+	return
+}
+
+func (sam *PrimarySession) Resolve(network, addr string) (net.Addr, error) {
+	return sam.Lookup(addr)
+}
+
+func (sam *PrimarySession) ResolveTCPAddr(network, dest string) (net.Addr, error) {
+	return sam.Lookup(dest)
+}
+
+func (sam *PrimarySession) ResolveUDPAddr(network, dest string) (net.Addr, error) {
+	return sam.Lookup(dest)
+}
+
+// Creates a new PrimarySession with the I2CP- and streaminglib options as
+// specified. See the I2P documentation for a full list of options.
+func (sam *SAM) NewPrimarySession(id string, keys i2pkeys.I2PKeys, options []string) (*PrimarySession, error) {
+	conn, err := sam.newGenericSession(PrimarySessionSwitch, id, keys, options, []string{})
+	if err != nil {
+		return nil, err
+	}
+	ssesss := make(map[string]*StreamSession)
+	dsesss := make(map[string]*DatagramSession)
+	return &PrimarySession{sam.Config.I2PConfig.Sam(), id, conn, keys, time.Duration(600 * time.Second), time.Now(), Sig_NONE, sam.Config, ssesss, dsesss}, nil
+}
+
+// Creates a new PrimarySession with the I2CP- and PRIMARYinglib options as
+// specified. See the I2P documentation for a full list of options.
+func (sam *SAM) NewPrimarySessionWithSignature(id string, keys i2pkeys.I2PKeys, options []string, sigType string) (*PrimarySession, error) {
+	conn, err := sam.newGenericSessionWithSignature(PrimarySessionSwitch, id, keys, sigType, options, []string{})
+	if err != nil {
+		return nil, err
+	}
+	ssesss := make(map[string]*StreamSession)
+	dsesss := make(map[string]*DatagramSession)
+	return &PrimarySession{sam.Config.I2PConfig.Sam(), id, conn, keys, time.Duration(600 * time.Second), time.Now(), sigType, sam.Config, ssesss, dsesss}, nil
+}
+
+// Creates a new session with the style of either "STREAM", "DATAGRAM" or "RAW",
+// for a new I2P tunnel with name id, using the cypher keys specified, with the
+// I2CP/streaminglib-options as specified. Extra arguments can be specified by
+// setting extra to something else than []string{}.
+// This sam3 instance is now a session
+func (sam *PrimarySession) newGenericSubSession(style, id string, extras []string) (net.Conn, error) {
+	return sam.newGenericSubSessionWithSignature(style, id, extras)
+}
+
+func (sam *PrimarySession) newGenericSubSessionWithSignature(style, id string, extras []string) (net.Conn, error) {
+	return sam.newGenericSubSessionWithSignatureAndPorts(style, id, "0", "0", extras)
+}
+
+// Creates a new session with the style of either "STREAM", "DATAGRAM" or "RAW",
+// for a new I2P tunnel with name id, using the cypher keys specified, with the
+// I2CP/streaminglib-options as specified. Extra arguments can be specified by
+// setting extra to something else than []string{}.
+// This sam3 instance is now a session
+func (sam *PrimarySession) newGenericSubSessionWithSignatureAndPorts(style, id, from, to string, extras []string) (net.Conn, error) {
+
+	conn := sam.conn
+	fp := ""
+	tp := ""
+	if from != "0" && from != "" {
+		fp = " FROM_PORT=" + from
+	}
+	if to != "0" && to != "" {
+		tp = " TO_PORT=" + to
+	}
+	scmsg := []byte("SESSION ADD STYLE=" + style + " ID=" + id + fp + tp + " " + strings.Join(extras, " ") + "\n")
+	for m, i := 0, 0; m != len(scmsg); i++ {
+		if i == 15 {
+			conn.Close()
+			return nil, errors.New("writing to SAM failed")
+		}
+		n, err := conn.Write(scmsg[m:])
+		if err != nil {
+			conn.Close()
+			return nil, err
+		}
+		m += n
+	}
+	buf := make([]byte, 4096)
+	n, err := conn.Read(buf)
+	if err != nil {
+		conn.Close()
+		return nil, err
+	}
+	text := string(buf[:n])
+	//log.Println("SAM:", text)
+	if strings.HasPrefix(text, session_ADDOK) {
+		//if sam.keys.String() != text[len(session_ADDOK):len(text)-1] {
+		//conn.Close()
+		//return nil, errors.New("SAMv3 created a tunnel with keys other than the ones we asked it for")
+		//}
+		return conn, nil //&StreamSession{id, conn, keys, nil, sync.RWMutex{}, nil}, nil
+	} else if text == session_DUPLICATE_ID {
+		conn.Close()
+		return nil, errors.New("Duplicate tunnel name")
+	} else if text == session_DUPLICATE_DEST {
+		conn.Close()
+		return nil, errors.New("Duplicate destination")
+	} else if text == session_INVALID_KEY {
+		conn.Close()
+		return nil, errors.New("Invalid key - Primary Session")
+	} else if strings.HasPrefix(text, session_I2P_ERROR) {
+		conn.Close()
+		return nil, errors.New("I2P error " + text[len(session_I2P_ERROR):])
+	} else {
+		conn.Close()
+		return nil, errors.New("Unable to parse SAMv3 reply: " + text)
+	}
+}
+
+// Creates a new StreamSession with the I2CP- and streaminglib options as
+// specified. See the I2P documentation for a full list of options.
+func (sam *PrimarySession) NewStreamSubSession(id string) (*StreamSession, error) {
+	conn, err := sam.newGenericSubSession("STREAM", id, []string{})
+	if err != nil {
+		return nil, err
+	}
+	return &StreamSession{sam.Config.I2PConfig.Sam(), id, conn, sam.keys, time.Duration(600 * time.Second), time.Now(), Sig_NONE, "0", "0"}, nil
+}
+
+// Creates a new StreamSession with the I2CP- and streaminglib options as
+// specified. See the I2P documentation for a full list of options.
+func (sam *PrimarySession) NewUniqueStreamSubSession(id string) (*StreamSession, error) {
+	conn, err := sam.newGenericSubSession("STREAM", id, []string{})
+	if err != nil {
+		return nil, err
+	}
+	return &StreamSession{sam.Config.I2PConfig.Sam(), id, conn, sam.keys, time.Duration(600 * time.Second), time.Now(), Sig_NONE, randport(), randport()}, nil
+}
+
+// Creates a new StreamSession with the I2CP- and streaminglib options as
+// specified. See the I2P documentation for a full list of options.
+func (sam *PrimarySession) NewStreamSubSessionWithPorts(id, from, to string) (*StreamSession, error) {
+	conn, err := sam.newGenericSubSessionWithSignatureAndPorts("STREAM", id, from, to, []string{})
+	if err != nil {
+		return nil, err
+	}
+	return &StreamSession{sam.Config.I2PConfig.Sam(), id, conn, sam.keys, time.Duration(600 * time.Second), time.Now(), Sig_NONE, from, to}, nil
+}
+
+/*
+func (s *PrimarySession) I2PListener(name string) (*StreamListener, error) {
+	listener, err := s.NewStreamSubSession(name)
+	if err != nil {
+		return nil, err
+	}
+	return listener.Listen()
+}
+*/
+
+// Creates a new datagram session. udpPort is the UDP port SAM is listening on,
+// and if you set it to zero, it will use SAMs standard UDP port.
+func (s *PrimarySession) NewDatagramSubSession(id string, udpPort int) (*DatagramSession, error) {
+	if udpPort > 65335 || udpPort < 0 {
+		return nil, errors.New("udpPort needs to be in the intervall 0-65335")
+	}
+	if udpPort == 0 {
+		udpPort = 7655
+	}
+	lhost, _, err := SplitHostPort(s.conn.LocalAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
+	lUDPAddr, err := net.ResolveUDPAddr("udp4", lhost+":0")
+	if err != nil {
+		return nil, err
+	}
+	udpconn, err := net.ListenUDP("udp4", lUDPAddr)
+	if err != nil {
+		return nil, err
+	}
+	rhost, _, err := SplitHostPort(s.conn.RemoteAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
+	rUDPAddr, err := net.ResolveUDPAddr("udp4", rhost+":"+strconv.Itoa(udpPort))
+	if err != nil {
+		return nil, err
+	}
+	_, lport, err := net.SplitHostPort(udpconn.LocalAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
+	conn, err := s.newGenericSubSession("DATAGRAM", id, []string{"PORT=" + lport})
+	if err != nil {
+		return nil, err
+	}
+	return &DatagramSession{s.Config.I2PConfig.Sam(), id, conn, udpconn, s.keys, rUDPAddr, nil}, nil
+}
+
+// Creates a new raw session. udpPort is the UDP port SAM is listening on,
+// and if you set it to zero, it will use SAMs standard UDP port.
+func (s *PrimarySession) NewRawSubSession(id string, udpPort int) (*RawSession, error) {
+	if udpPort > 65335 || udpPort < 0 {
+		return nil, errors.New("udpPort needs to be in the intervall 0-65335")
+	}
+	if udpPort == 0 {
+		udpPort = 7655
+	}
+	lhost, _, err := SplitHostPort(s.conn.LocalAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
+	lUDPAddr, err := net.ResolveUDPAddr("udp4", lhost+":0")
+	if err != nil {
+		return nil, err
+	}
+	udpconn, err := net.ListenUDP("udp4", lUDPAddr)
+	if err != nil {
+		return nil, err
+	}
+	rhost, _, err := SplitHostPort(s.conn.RemoteAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
+	rUDPAddr, err := net.ResolveUDPAddr("udp4", rhost+":"+strconv.Itoa(udpPort))
+	if err != nil {
+		return nil, err
+	}
+	_, lport, err := net.SplitHostPort(udpconn.LocalAddr().String())
+	if err != nil {
+		s.Close()
+		return nil, err
+	}
+	//	conn, err := s.newGenericSubSession("RAW", id, s.keys, options, []string{"PORT=" + lport})
+	conn, err := s.newGenericSubSession("RAW", id, []string{"PORT=" + lport})
+	if err != nil {
+		return nil, err
+	}
+	return &RawSession{s.Config.I2PConfig.Sam(), id, conn, udpconn, s.keys, rUDPAddr}, nil
+}

primary_datagram_test.go

@@ -0,0 +1,149 @@
+package sam3
+
+import (
+	"fmt"
+	"log"
+	"testing"
+	"time"
+)
+
+func Test_PrimaryDatagramServerClient(t *testing.T) {
+	if testing.Short() {
+		return
+	}
+
+	fmt.Println("Test_PrimaryDatagramServerClient")
+	earlysam, err := NewSAM(yoursam)
+	if err != nil {
+		t.Fail()
+		return
+	}
+	defer earlysam.Close()
+	keys, err := earlysam.NewKeys()
+	if err != nil {
+		t.Fail()
+		return
+	}
+
+	sam, err := earlysam.NewPrimarySession("PrimaryTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+	if err != nil {
+		t.Fail()
+		return
+	}
+	defer sam.Close()
+	//	fmt.Println("\tServer: My address: " + keys.Addr().Base32())
+	fmt.Println("\tServer: Creating tunnel")
+	ds, err := sam.NewDatagramSubSession("PrimaryTunnel"+RandString(), 0)
+	if err != nil {
+		fmt.Println("Server: Failed to create tunnel: " + err.Error())
+		t.Fail()
+		return
+	}
+	defer ds.Close()
+	c, w := make(chan bool), make(chan bool)
+	go func(c, w chan (bool)) {
+		sam2, err := NewSAM(yoursam)
+		if err != nil {
+			c <- false
+			return
+		}
+		defer sam2.Close()
+		keys, err := sam2.NewKeys()
+		if err != nil {
+			c <- false
+			return
+		}
+		fmt.Println("\tClient: Creating tunnel")
+		ds2, err := sam2.NewDatagramSession("PRIMARYClientTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"}, 0)
+		if err != nil {
+			c <- false
+			return
+		}
+		defer ds2.Close()
+		//		fmt.Println("\tClient: Servers address: " + ds.LocalAddr().Base32())
+		//		fmt.Println("\tClient: Clients address: " + ds2.LocalAddr().Base32())
+		fmt.Println("\tClient: Tries to send primary to server")
+		for {
+			select {
+			default:
+				_, err = ds2.WriteTo([]byte("Hello primary-world! <3 <3 <3 <3 <3 <3"), ds.LocalAddr())
+				if err != nil {
+					fmt.Println("\tClient: Failed to send primary: " + err.Error())
+					c <- false
+					return
+				}
+				time.Sleep(5 * time.Second)
+			case <-w:
+				fmt.Println("\tClient: Sent primary, quitting.")
+				return
+			}
+		}
+		c <- true
+	}(c, w)
+	buf := make([]byte, 512)
+	fmt.Println("\tServer: ReadFrom() waiting...")
+	n, _, err := ds.ReadFrom(buf)
+	w <- true
+	if err != nil {
+		fmt.Println("\tServer: Failed to ReadFrom(): " + err.Error())
+		t.Fail()
+		return
+	}
+	fmt.Println("\tServer: Received primary: " + string(buf[:n]))
+	//	fmt.Println("\tServer: Senders address was: " + saddr.Base32())
+}
+
+func ExamplePrimaryDatagramSession() {
+	// Creates a new PrimarySession, then creates a Datagram subsession on top of it
+
+	const samBridge = "127.0.0.1:7656"
+
+	earlysam, err := NewSAM(samBridge)
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	defer earlysam.Close()
+	keys, err := earlysam.NewKeys()
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	myself := keys.Addr()
+
+	sam, err := earlysam.NewPrimarySession("PrimaryTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	defer sam.Close()
+
+	// See the example Option_* variables.
+	dg, err := sam.NewDatagramSubSession("DGTUN"+RandString(), 0)
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	defer dg.Close()
+	someone, err := earlysam.Lookup("zzz.i2p")
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+
+	dg.WriteTo([]byte("Hello stranger!"), someone)
+	dg.WriteTo([]byte("Hello myself!"), myself)
+
+	buf := make([]byte, 31*1024)
+	n, _, err := dg.ReadFrom(buf)
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	log.Println("Got message: '" + string(buf[:n]) + "'")
+	fmt.Println("Got message: " + string(buf[:n]))
+
+	return
+	// Output:
+	//Got message: Hello myself!
+}

primary_stream_test.go

@@ -0,0 +1,308 @@
+package sam3
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"strings"
+	"testing"
+	"time"
+)
+
+func Test_PrimaryStreamingDial(t *testing.T) {
+	if testing.Short() {
+		return
+	}
+	fmt.Println("Test_PrimaryStreamingDial")
+	earlysam, err := NewSAM(yoursam)
+	if err != nil {
+		t.Fail()
+		return
+	}
+	defer earlysam.Close()
+	keys, err := earlysam.NewKeys()
+	if err != nil {
+		t.Fail()
+		return
+	}
+
+	sam, err := earlysam.NewPrimarySession("PrimaryTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+	if err != nil {
+		t.Fail()
+		return
+	}
+	defer sam.Close()
+	fmt.Println("\tBuilding tunnel")
+	ss, err := sam.NewStreamSubSession("primaryStreamTunnel")
+	if err != nil {
+		fmt.Println(err.Error())
+		t.Fail()
+		return
+	}
+	defer ss.Close()
+	fmt.Println("\tNotice: This may fail if your I2P node is not well integrated in the I2P network.")
+	fmt.Println("\tLooking up i2p-projekt.i2p")
+	forumAddr, err := earlysam.Lookup("i2p-projekt.i2p")
+	if err != nil {
+		fmt.Println(err.Error())
+		t.Fail()
+		return
+	}
+	fmt.Println("\tDialing i2p-projekt.i2p(", forumAddr.Base32(), forumAddr.DestHash().Hash(), ")")
+	conn, err := ss.DialI2P(forumAddr)
+	if err != nil {
+		fmt.Println(err.Error())
+		t.Fail()
+		return
+	}
+	defer conn.Close()
+	fmt.Println("\tSending HTTP GET /")
+	if _, err := conn.Write([]byte("GET /\n")); err != nil {
+		fmt.Println(err.Error())
+		t.Fail()
+		return
+	}
+	buf := make([]byte, 4096)
+	n, err := conn.Read(buf)
+	if !strings.Contains(strings.ToLower(string(buf[:n])), "http") && !strings.Contains(strings.ToLower(string(buf[:n])), "html") {
+		fmt.Printf("\tProbably failed to StreamSession.DialI2P(i2p-projekt.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
+	} else {
+		fmt.Println("\tRead HTTP/HTML from i2p-projekt.i2p")
+	}
+}
+
+func Test_PrimaryStreamingServerClient(t *testing.T) {
+	if testing.Short() {
+		return
+	}
+
+	fmt.Println("Test_StreamingServerClient")
+	earlysam, err := NewSAM(yoursam)
+	if err != nil {
+		t.Fail()
+		return
+	}
+	defer earlysam.Close()
+	keys, err := earlysam.NewKeys()
+	if err != nil {
+		t.Fail()
+		return
+	}
+
+	sam, err := earlysam.NewPrimarySession("PrimaryServerClientTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+	if err != nil {
+		t.Fail()
+		return
+	}
+	defer sam.Close()
+	fmt.Println("\tServer: Creating tunnel")
+	ss, err := sam.NewUniqueStreamSubSession("PrimaryServerClientTunnel")
+	if err != nil {
+		return
+	}
+	defer ss.Close()
+	time.Sleep(time.Second * 10)
+	c, w := make(chan bool), make(chan bool)
+	go func(c, w chan (bool)) {
+		if !(<-w) {
+			return
+		}
+		/*
+		   sam2, err := NewSAM(yoursam)
+		   if err != nil {
+		   	c <- false
+		   	return
+		   }
+		   defer sam2.Close()
+		   keys, err := sam2.NewKeys()
+		   if err != nil {
+		   	c <- false
+		   	return
+		   }
+		*/
+
+		fmt.Println("\tClient: Creating tunnel")
+		ss2, err := sam.NewStreamSubSession("primaryExampleClientTun")
+		if err != nil {
+			c <- false
+			return
+		}
+		defer ss2.Close()
+		fmt.Println("\tClient: Connecting to server")
+		conn, err := ss2.DialI2P(ss.Addr())
+		if err != nil {
+			c <- false
+			return
+		}
+		fmt.Println("\tClient: Connected to tunnel")
+		defer conn.Close()
+		_, err = conn.Write([]byte("Hello world <3 <3 <3 <3 <3 <3"))
+		if err != nil {
+			c <- false
+			return
+		}
+		c <- true
+	}(c, w)
+	l, err := ss.Listen()
+	if err != nil {
+		fmt.Println("ss.Listen(): " + err.Error())
+		t.Fail()
+		w <- false
+		return
+	}
+	defer l.Close()
+	w <- true
+	fmt.Println("\tServer: Accept()ing on tunnel")
+	conn, err := l.Accept()
+	if err != nil {
+		t.Fail()
+		fmt.Println("Failed to Accept(): " + err.Error())
+		return
+	}
+	defer conn.Close()
+	buf := make([]byte, 512)
+	n, err := conn.Read(buf)
+	fmt.Printf("\tClient exited successfully: %t\n", <-c)
+	fmt.Println("\tServer: received from Client: " + string(buf[:n]))
+}
+
+func ExamplePrimaryStreamSession() {
+	// Creates a new StreamingSession, dials to idk.i2p and gets a SAMConn
+	// which behaves just like a normal net.Conn.
+
+	const samBridge = "127.0.0.1:7656"
+
+	earlysam, err := NewSAM(yoursam)
+	if err != nil {
+		log.Fatal(err.Error())
+		return
+	}
+	defer earlysam.Close()
+	keys, err := earlysam.NewKeys()
+	if err != nil {
+		log.Fatal(err.Error())
+		return
+	}
+
+	sam, err := earlysam.NewPrimarySession("PrimaryStreamSessionTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+	if err != nil {
+		log.Fatal(err.Error())
+		return
+	}
+	defer sam.Close()
+	conn, err := sam.Dial("tcp", "idk.i2p") //someone.Base32())
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	defer conn.Close()
+	fmt.Println("Sending HTTP GET /")
+	if _, err := conn.Write([]byte("GET /\n")); err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	buf := make([]byte, 4096)
+	n, err := conn.Read(buf)
+	if !strings.Contains(strings.ToLower(string(buf[:n])), "http") && !strings.Contains(strings.ToLower(string(buf[:n])), "html") {
+		fmt.Printf("Probably failed to StreamSession.DialI2P(idk.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
+		log.Printf("Probably failed to StreamSession.DialI2P(idk.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
+	} else {
+		fmt.Println("Read HTTP/HTML from idk.i2p")
+		log.Println("Read HTTP/HTML from idk.i2p")
+	}
+	// Output:
+	//Sending HTTP GET /
+	//Read HTTP/HTML from idk.i2p
+}
+
+func ExamplePrimaryStreamListener() {
+	// One server Accept()ing on a StreamListener, and one client that Dials
+	// through I2P to the server. Server writes "Hello world!" through a SAMConn
+	// (which implements net.Conn) and the client prints the message.
+
+	const samBridge = "127.0.0.1:7656"
+
+	var ss *StreamSession
+	go func() {
+		earlysam, err := NewSAM(yoursam)
+		if err != nil {
+			log.Fatal(err.Error())
+			return
+		}
+		defer earlysam.Close()
+		keys, err := earlysam.NewKeys()
+		if err != nil {
+			log.Fatal(err.Error())
+			return
+		}
+		sam, err := earlysam.NewPrimarySession("PrimaryListenerTunnel", keys, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+		if err != nil {
+			log.Fatal(err.Error())
+			return
+		}
+		defer sam.Close()
+		ss, err = sam.NewStreamSubSession("PrimaryListenerServerTunnel2")
+		if err != nil {
+			fmt.Println(err.Error())
+			return
+		}
+		defer ss.Close()
+		l, err := ss.Listen()
+		if err != nil {
+			fmt.Println(err.Error())
+			return
+		}
+		defer l.Close()
+		//fmt.Println("Serving on primary listener", l.Addr().String())
+		if err := http.Serve(l, &exitHandler{}); err != nil {
+			fmt.Println(err.Error())
+		}
+	}()
+	time.Sleep(time.Second * 10)
+	latesam, err := NewSAM(yoursam)
+	if err != nil {
+		log.Fatal(err.Error())
+		return
+	}
+	defer latesam.Close()
+	keys2, err := latesam.NewKeys()
+	if err != nil {
+		log.Fatal(err.Error())
+		return
+	}
+	sc, err := latesam.NewStreamSession("PrimaryListenerClientTunnel2", keys2, []string{"inbound.length=0", "outbound.length=0", "inbound.lengthVariance=0", "outbound.lengthVariance=0", "inbound.quantity=1", "outbound.quantity=1"})
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	defer sc.Close()
+	client := http.Client{
+		Transport: &http.Transport{
+			Dial: sc.Dial,
+		},
+	}
+	//resp, err := client.Get("http://" + "idk.i2p") //ss.Addr().Base32())
+	resp, err := client.Get("http://" + ss.Addr().Base32())
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	defer resp.Body.Close()
+	r, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		fmt.Println(err.Error())
+		return
+	}
+	fmt.Println("Got response: " + string(r))
+
+	// Output:
+	// Got response: Hello world!
+}
+
+type exitHandler struct {
+}
+
+func (e *exitHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	w.Write([]byte("Hello world!"))
+}

raw.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
+	"github.com/eyedeekay/i2pkeys"
 )
 
 // The RawSession provides no authentication of senders, and there is no sender
@@ -34,7 +34,7 @@ func (s *SAM) NewRawSession(id string, keys i2pkeys.I2PKeys, options []string, u
 	if udpPort == 0 {
 		udpPort = 7655
 	}
-	lhost, _, err := net.SplitHostPort(s.conn.LocalAddr().String())
+	lhost, _, err := SplitHostPort(s.conn.LocalAddr().String())
 	if err != nil {
 		s.Close()
 		return nil, err
@@ -47,7 +47,7 @@ func (s *SAM) NewRawSession(id string, keys i2pkeys.I2PKeys, options []string, u
 	if err != nil {
 		return nil, err
 	}
-	rhost, _, err := net.SplitHostPort(s.conn.RemoteAddr().String())
+	rhost, _, err := SplitHostPort(s.conn.RemoteAddr().String())
 	if err != nil {
 		s.Close()
 		return nil, err

resolver.go

@@ -6,7 +6,7 @@ import (
 	"errors"
 	"strings"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
+	"github.com/eyedeekay/i2pkeys"
 )
 
 type SAMResolver struct {
@@ -55,7 +55,7 @@ func (sam *SAMResolver) Resolve(name string) (i2pkeys.I2PAddr, error) {
 		if text == "RESULT=OK" {
 			continue
 		} else if text == "RESULT=INVALID_KEY" {
-			errStr += "Invalid key."
+			errStr += "Invalid key - resolver."
 		} else if text == "RESULT=KEY_NOT_FOUND" {
 			errStr += "Unable to resolve " + name
 		} else if text == "NAME="+name {

sam3.go

@@ -6,16 +6,14 @@ import (
 	"bytes"
 	"errors"
 	"io"
+	"math/rand"
 	"net"
 	"os"
 	"strings"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
-)
+	"github.com/eyedeekay/i2pkeys"
 
-import (
-	. "github.com/eyedeekay/ramp/emit"
-	. "github.com/eyedeekay/sam3/i2pkeys"
+	. "github.com/eyedeekay/i2pkeys"
 )
 
 // Used for controlling I2Ps SAMv3.
@@ -45,6 +43,17 @@ const (
 	Sig_EdDSA_SHA512_Ed25519 = "SIGNATURE_TYPE=EdDSA_SHA512_Ed25519"
 )
 
+var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
+
+func RandString() string {
+	n := 4
+	b := make([]rune, n)
+	for i := range b {
+		b[i] = letters[rand.Intn(len(letters))]
+	}
+	return string(b)
+}
+
 // Creates a new controller for the I2P routers SAM bridge.
 func NewSAM(address string) (*SAM, error) {
 	var s SAM
@@ -206,7 +215,15 @@ func (sam *SAM) newGenericSessionWithSignatureAndPorts(style, id, from, to strin
 	}
 
 	conn := sam.conn
-	scmsg := []byte("SESSION CREATE STYLE=" + style + " FROM_PORT=" + from + " TO_PORT=" + to + " ID=" + id + " DESTINATION=" + keys.String() + " " + sigType + " " + optStr + strings.Join(extras, " ") + "\n")
+	fp := ""
+	tp := ""
+	if from != "0" {
+		fp = " FROM_PORT=" + from
+	}
+	if to != "0" {
+		tp = " TO_PORT=" + to
+	}
+	scmsg := []byte("SESSION CREATE STYLE=" + style + fp + tp + " ID=" + id + " DESTINATION=" + keys.String() + " " + optStr + strings.Join(extras, " ") + "\n")
 	for m, i := 0, 0; m != len(scmsg); i++ {
 		if i == 15 {
 			conn.Close()
@@ -240,7 +257,7 @@ func (sam *SAM) newGenericSessionWithSignatureAndPorts(style, id, from, to strin
 		return nil, errors.New("Duplicate destination")
 	} else if text == session_INVALID_KEY {
 		conn.Close()
-		return nil, errors.New("Invalid key")
+		return nil, errors.New("Invalid key - SAM session")
 	} else if strings.HasPrefix(text, session_I2P_ERROR) {
 		conn.Close()
 		return nil, errors.New("I2P error " + text[len(session_I2P_ERROR):])

sam3_test.go

@@ -1,5 +1,3 @@
-// +build nettest
-
 package sam3
 
 import (

stream.go

@@ -6,13 +6,11 @@ import (
 	"context"
 	"errors"
 	"io"
-	"log"
 	"net"
-	"strconv"
 	"strings"
 	"time"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
+	"github.com/eyedeekay/i2pkeys"
 )
 
 // Represents a streaming session.
@@ -28,6 +26,18 @@ type StreamSession struct {
 	to       string
 }
 
+func (s *StreamSession) SetDeadline(t time.Time) error {
+	return s.conn.SetDeadline(t)
+}
+
+func (s *StreamSession) SetReadDeadline(t time.Time) error {
+	return s.conn.SetReadDeadline(t)
+}
+
+func (s *StreamSession) SetWriteDeadline(t time.Time) error {
+	return s.conn.SetWriteDeadline(t)
+}
+
 func (ss *StreamSession) From() string {
 	return ss.from
 }
@@ -54,6 +64,10 @@ func (ss *StreamSession) Addr() i2pkeys.I2PAddr {
 	return ss.keys.Addr()
 }
 
+func (ss *StreamSession) LocalAddr() net.Addr {
+	return ss.keys.Addr()
+}
+
 // Returns the keys associated with the stream session
 func (ss *StreamSession) Keys() i2pkeys.I2PKeys {
 	return ss.keys
@@ -94,7 +108,7 @@ func (s *StreamSession) Lookup(name string) (i2pkeys.I2PAddr, error) {
 	sam, err := NewSAM(s.samAddr)
 	if err == nil {
 		addr, err := sam.Lookup(name)
-		sam.Close()
+		defer sam.Close()
 		return addr, err
 	}
 	return i2pkeys.I2PAddr(""), err
@@ -163,15 +177,19 @@ func (s *StreamSession) Dial(n, addr string) (c net.Conn, err error) {
 
 	var i2paddr i2pkeys.I2PAddr
 	var host string
-	host, _, err = net.SplitHostPort(addr)
-	if err == nil {
+	host, _, err = SplitHostPort(addr)
+	//log.Println("Dialing:", host)
+	if err = IgnorePortError(err); err == nil {
 		// check for name
 		if strings.HasSuffix(host, ".b32.i2p") || strings.HasSuffix(host, ".i2p") {
 			// name lookup
 			i2paddr, err = s.Lookup(host)
+			//log.Println("Lookup:", i2paddr, err)
 		} else {
 			// probably a destination
-			i2paddr = i2pkeys.I2PAddr(host)
+			i2paddr, err = i2pkeys.NewI2PAddrFromBytes([]byte(host))
+			//i2paddr = i2pkeys.I2PAddr(host)
+			//log.Println("Destination:", i2paddr, err)
 		}
 		if err == nil {
 			return s.DialI2P(i2paddr)
@@ -216,7 +234,7 @@ func (s *StreamSession) DialI2P(addr i2pkeys.I2PAddr) (*SAMConn, error) {
 			return nil, errors.New("I2P internal error")
 		case "RESULT=INVALID_KEY":
 			conn.Close()
-			return nil, errors.New("Invalid key")
+			return nil, errors.New("Invalid key - Stream Session")
 		case "RESULT=INVALID_ID":
 			conn.Close()
 			return nil, errors.New("Invalid tunnel ID")
@@ -239,106 +257,3 @@ func (s *StreamSession) Listen() (*StreamListener, error) {
 		laddr:   s.keys.Addr(),
 	}, nil
 }
-
-type StreamListener struct {
-	// parent stream session
-	session *StreamSession
-	// our session id
-	id string
-	// our local address for this sam socket
-	laddr i2pkeys.I2PAddr
-}
-
-func (l *StreamListener) From() string {
-	return l.session.from
-}
-
-func (l *StreamListener) To() string {
-	return l.session.to
-}
-
-// get our address
-// implements net.Listener
-func (l *StreamListener) Addr() net.Addr {
-	return l.laddr
-}
-
-// implements net.Listener
-func (l *StreamListener) Close() error {
-	return l.session.Close()
-}
-
-// implements net.Listener
-func (l *StreamListener) Accept() (net.Conn, error) {
-	return l.AcceptI2P()
-}
-
-func ExtractPairString(input, value string) string {
-	parts := strings.Split(input, " ")
-	for _, part := range parts {
-		if strings.HasPrefix(part, value) {
-			kv := strings.SplitN(input, "=", 2)
-			if len(kv) == 2 {
-				return kv[1]
-			}
-		}
-	}
-	return ""
-}
-
-func ExtractPairInt(input, value string) int {
-	rv, err := strconv.Atoi(ExtractPairString(input, value))
-	if err != nil {
-		return 0
-	}
-	return rv
-}
-
-func ExtractDest(input string) string {
-	return strings.Split(input, " ")[0]
-}
-
-// accept a new inbound connection
-func (l *StreamListener) AcceptI2P() (*SAMConn, error) {
-	s, err := NewSAM(l.session.samAddr)
-	if err == nil {
-		// we connected to sam
-		// send accept() command
-		_, err = io.WriteString(s.conn, "STREAM ACCEPT ID="+l.id+" SILENT=false\n")
-		// read reply
-		rd := bufio.NewReader(s.conn)
-		// read first line
-		line, err := rd.ReadString(10)
-		log.Println(line)
-		if err == nil {
-			if strings.HasPrefix(line, "STREAM STATUS RESULT=OK") {
-				// we gud read destination line
-				destline, err := rd.ReadString(10)
-				log.Println(destline)
-				if err == nil {
-					dest := ExtractDest(destline)
-					l.session.from = ExtractPairString(destline, "FROM_PORT")
-					l.session.to = ExtractPairString(destline, "TO_PORT")
-					// return wrapped connection
-					dest = strings.Trim(dest, "\n")
-					return &SAMConn{
-						laddr: l.laddr,
-						raddr: i2pkeys.I2PAddr(dest),
-						conn:  s.conn,
-					}, nil
-				} else {
-					s.Close()
-					return nil, err
-				}
-			} else {
-				s.Close()
-				return nil, errors.New("invalid sam line: " + line)
-			}
-		} else {
-			s.Close()
-			return nil, err
-		}
-	}
-	s.Close()
-	return nil, err
-}

streamListener.go

@@ -0,0 +1,115 @@
+package sam3
+
+import (
+	"bufio"
+	"errors"
+	"io"
+	"log"
+	"net"
+	"strconv"
+	"strings"
+
+	"github.com/eyedeekay/i2pkeys"
+)
+
+type StreamListener struct {
+	// parent stream session
+	session *StreamSession
+	// our session id
+	id string
+	// our local address for this sam socket
+	laddr i2pkeys.I2PAddr
+}
+
+func (l *StreamListener) From() string {
+	return l.session.from
+}
+
+func (l *StreamListener) To() string {
+	return l.session.to
+}
+
+// get our address
+// implements net.Listener
+func (l *StreamListener) Addr() net.Addr {
+	return l.laddr
+}
+
+// implements net.Listener
+func (l *StreamListener) Close() error {
+	return l.session.Close()
+}
+
+// implements net.Listener
+func (l *StreamListener) Accept() (net.Conn, error) {
+	return l.AcceptI2P()
+}
+
+func ExtractPairString(input, value string) string {
+	parts := strings.Split(input, " ")
+	for _, part := range parts {
+		if strings.HasPrefix(part, value) {
+			kv := strings.SplitN(input, "=", 2)
+			if len(kv) == 2 {
+				return kv[1]
+			}
+		}
+	}
+	return ""
+}
+
+func ExtractPairInt(input, value string) int {
+	rv, err := strconv.Atoi(ExtractPairString(input, value))
+	if err != nil {
+		return 0
+	}
+	return rv
+}
+
+func ExtractDest(input string) string {
+	return strings.Split(input, " ")[0]
+}
+
+// accept a new inbound connection
+func (l *StreamListener) AcceptI2P() (*SAMConn, error) {
+	s, err := NewSAM(l.session.samAddr)
+	if err == nil {
+		// we connected to sam
+		// send accept() command
+		_, err = io.WriteString(s.conn, "STREAM ACCEPT ID="+l.id+" SILENT=false\n")
+		// read reply
+		rd := bufio.NewReader(s.conn)
+		// read first line
+		line, err := rd.ReadString(10)
+		log.Println(line)
+		if err == nil {
+			if strings.HasPrefix(line, "STREAM STATUS RESULT=OK") {
+				// we gud read destination line
+				destline, err := rd.ReadString(10)
+				if err == nil {
+					dest := ExtractDest(destline)
+					l.session.from = ExtractPairString(destline, "FROM_PORT")
+					l.session.to = ExtractPairString(destline, "TO_PORT")
+					// return wrapped connection
+					dest = strings.Trim(dest, "\n")
+					return &SAMConn{
+						laddr: l.laddr,
+						raddr: i2pkeys.I2PAddr(dest),
+						conn:  s.conn,
+					}, nil
+				} else {
+					s.Close()
+					return nil, err
+				}
+			} else {
+				s.Close()
+				return nil, errors.New("invalid sam line: " + line)
+			}
+		} else {
+			s.Close()
+			return nil, err
+		}
+	}
+	s.Close()
+	return nil, err
+}

stream_test.go

@@ -1,5 +1,3 @@
-// +build nettest
-
 package sam3
 
 import (
@@ -8,7 +6,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/eyedeekay/sam3/i2pkeys"
+	"github.com/eyedeekay/i2pkeys"
 )
 
 func Test_StreamingDial(t *testing.T) {
@@ -150,7 +148,7 @@ func Test_StreamingServerClient(t *testing.T) {
 }
 
 func ExampleStreamSession() {
-	// Creates a new StreamingSession, dials to zzz.i2p and gets a SAMConn
+	// Creates a new StreamingSession, dials to idk.i2p and gets a SAMConn
 	// which behaves just like a normal net.Conn.
 
 	const samBridge = "127.0.0.1:7656"
@@ -172,7 +170,7 @@ func ExampleStreamSession() {
 		fmt.Println(err.Error())
 		return
 	}
-	someone, err := sam.Lookup("zzz.i2p")
+	someone, err := sam.Lookup("idk.i2p")
 	if err != nil {
 		fmt.Println(err.Error())
 		return
@@ -192,17 +190,17 @@ func ExampleStreamSession() {
 	buf := make([]byte, 4096)
 	n, err := conn.Read(buf)
 	if !strings.Contains(strings.ToLower(string(buf[:n])), "http") && !strings.Contains(strings.ToLower(string(buf[:n])), "html") {
-		fmt.Printf("Probably failed to StreamSession.DialI2P(zzz.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
-		log.Printf("Probably failed to StreamSession.DialI2P(zzz.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
+		fmt.Printf("Probably failed to StreamSession.DialI2P(idk.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
+		log.Printf("Probably failed to StreamSession.DialI2P(idk.i2p)? It replied %d bytes, but nothing that looked like http/html", n)
 	} else {
-		fmt.Println("Read HTTP/HTML from zzz.i2p")
-		log.Println("Read HTTP/HTML from zzz.i2p")
+		fmt.Println("Read HTTP/HTML from idk.i2p")
+		log.Println("Read HTTP/HTML from idk.i2p")
 	}
 	return
 
 	// Output:
 	//Sending HTTP GET /
-	//Read HTTP/HTML from zzz.i2p
+	//Read HTTP/HTML from idk.i2p
 }
 
 func ExampleStreamListener() {

style.css

@@ -0,0 +1,157 @@
+/* edgar default CSS file */
+
+body {
+    font-family: "Roboto";
+    font-family: monospace;
+    text-align: justify;
+    background-color: #373636;
+    color: whitesmoke;
+    font-size: 1.15em;
+}
+
+ul {
+    width: 55%;
+    display: block;
+}
+
+ol {
+    width: 55%;
+    display: block;
+}
+
+li {
+    margin-top: 1%;
+}
+
+p {
+    max-width: 90%;
+    margin-top: 1%;
+    margin-left: 3%;
+    margin-right: 3%;
+}
+
+img {
+    float: left;
+    top: 5%;
+    left: 5%;
+    max-width: 60%;
+    display: inline;
+}
+
+.inline {
+    display: inline;
+}
+
+.link-button:focus {
+    outline: none;
+}
+
+.link-button:active {
+    color: red;
+}
+
+code {
+    font-family: monospace;
+    border-radius: 5%;
+    padding: 1%;
+    border-color: darkgray;
+    font-size: .9em;
+}
+
+a {
+    color: #C6D9FE;
+    padding: 1%;
+}
+
+ul li {
+    color: #C6D9FE;
+}
+
+iframe {
+    background: aliceblue;
+    border-radius: 15%;
+    margin: 2%;
+}
+
+.container {
+    width: 36vw;
+    height: 64vh;
+    display: inline-block;
+    margin: 0;
+    padding: 0;
+}
+
+.editor-toolbar a {
+    display: inline-block;
+    text-align: center;
+    text-decoration: none !important;
+    color: whitesmoke !important;
+}
+
+#feed {
+    width: 60vw;
+    height: unset !important;
+    margin: 0;
+    padding: 0;
+    float: right;
+    background-color: #373636;
+    color: whitesmoke;
+    border: #C6D9FE solid 1px;
+}
+
+.thread-post,
+.thread {
+    color: whitesmoke !important;
+    background-color: #373636;
+    border: 1px solid darkgray;
+    font-size: inherit;
+    padding-top: 1%;
+    padding-bottom: 1%;
+}
+
+.thread-post {
+    margin-left: 4%;
+}
+
+input {
+    text-align: center;
+    color: whitesmoke !important;
+    background-color: #373636;
+    border: 1px solid darkgray;
+    font: normal normal normal 14px/1 FontAwesome;
+    font-size: inherit;
+    padding-top: 1%;
+    padding-bottom: 1%;
+}
+
+.thread-hash {
+    text-align: right;
+    color: whitesmoke !important;
+    background-color: #373636;
+    border: 1px solid darkgray;
+    font-size: inherit;
+    padding-top: 1%;
+    padding-bottom: 1%;
+}
+
+.post-body {
+    text-align: left;
+    color: whitesmoke !important;
+    font-size: inherit;
+    padding-top: 1%;
+    padding-bottom: 1%;
+}
+#show {display:none; }
+#hide {display:block; }
+#show:target {display: block; }
+#hide:target {display: none; }
+
+#shownav {display:none; }
+#hidenav {display:block; }
+#shownav:target {display: block; }
+#hidenav:target {display: none; }
+
+#navbar {
+	float: right;
+	width: 10%;
+}

suggestedOptions.go

@@ -1,5 +1,11 @@
 package sam3
 
+import (
+	"net"
+	"net/http"
+	"os"
+)
+
 // Examples and suggestions for options when creating sessions.
 var (
 	// Suitable options if you are shuffling A LOT of traffic. If unused, this
@@ -10,17 +16,30 @@ var (
 		"inbound.quantity=6", "outbound.quantity=6"}
 
 	// Suitable for shuffling a lot of traffic.
-	Options_Fat = []string{"inbound.length=3", "outbound.length=3",
+	Options_Large = []string{"inbound.length=3", "outbound.length=3",
 		"inbound.lengthVariance=1", "outbound.lengthVariance=1",
 		"inbound.backupQuantity=1", "outbound.backupQuantity=1",
 		"inbound.quantity=4", "outbound.quantity=4"}
 
+	// Suitable for shuffling a lot of traffic quickly with minimum
+	// anonymity. Uses 1 hop and multiple tunnels.
+	Options_Wide = []string{"inbound.length=1", "outbound.length=1",
+		"inbound.lengthVariance=1", "outbound.lengthVariance=1",
+		"inbound.backupQuantity=2", "outbound.backupQuantity=2",
+		"inbound.quantity=3", "outbound.quantity=3"}
+
 	// Suitable for shuffling medium amounts of traffic.
 	Options_Medium = []string{"inbound.length=3", "outbound.length=3",
 		"inbound.lengthVariance=1", "outbound.lengthVariance=1",
 		"inbound.backupQuantity=0", "outbound.backupQuantity=0",
 		"inbound.quantity=2", "outbound.quantity=2"}
 
+	// Sensible defaults for most people
+	Options_Default = []string{"inbound.length=3", "outbound.length=3",
+		"inbound.lengthVariance=0", "outbound.lengthVariance=0",
+		"inbound.backupQuantity=1", "outbound.backupQuantity=1",
+		"inbound.quantity=1", "outbound.quantity=1"}
+
 	// Suitable only for small dataflows, and very short lasting connections:
 	// You only have one tunnel in each direction, so if any of the nodes
 	// through which any of your two tunnels pass through go offline, there will
@@ -38,3 +57,35 @@ var (
 		"inbound.backupQuantity=0", "outbound.backupQuantity=0",
 		"inbound.quantity=2", "outbound.quantity=2"}
 )
+
+func PrimarySessionString() string {
+	_, err := http.Get("http://127.0.0.1:7070")
+	if err != nil {
+		_, err := http.Get("http://127.0.0.1:7657")
+		if err != nil {
+			return "MASTER"
+		}
+		return "PRIMARY"
+	}
+	return "MASTER"
+}
+
+var PrimarySessionSwitch string = PrimarySessionString()
+
+func getEnv(key, fallback string) string {
+	value, ok := os.LookupEnv(key)
+	if !ok {
+		return fallback
+	}
+	return value
+}
+
+var SAM_HOST = getEnv("sam_host", "127.0.0.1")
+var SAM_PORT = getEnv("sam_port", "7656")
+
+func SAMDefaultAddr(fallforward string) string {
+	if fallforward == "" {
+		return net.JoinHostPort(SAM_HOST, SAM_PORT)
+	}
+	return fallforward
+}