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adam.huang
go-libp2p
Commits
5132c763
Commit
5132c763
authored
7 years ago
by
Jeromy
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update example to make it easy to swap out stream muxer
parent
90264796
master
2018-Q4-OKR
feat/protobuf
feat/udp
fix/473
fix/no-custom-field
fix/reset-ping-stream
fix/revert-correct-external-addr
gx/update-jccl6u
gx/update-nza0mn
jenkinsfile
kevina/fix-go-vet
multistream-ping
punching
revert-276-update-go-detect-race
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No related merge requests found
Changes
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1 changed file
examples/echo/main.go
+37
-10
examples/echo/main.go
with
37 additions
and
10 deletions
+37
-10
examples/echo/main.go
View file @
5132c763
...
...
@@ -3,10 +3,13 @@ package main
import
(
"bufio"
"context"
"crypto/rand"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
mrand
"math/rand"
golog
"github.com/ipfs/go-log"
crypto
"github.com/libp2p/go-libp2p-crypto"
...
...
@@ -15,19 +18,30 @@ import (
peer
"github.com/libp2p/go-libp2p-peer"
pstore
"github.com/libp2p/go-libp2p-peerstore"
swarm
"github.com/libp2p/go-libp2p-swarm"
bhost
"github.com/libp2p/go-libp2p/p2p/host/basic"
ma
"github.com/multiformats/go-multiaddr"
gologging
"github.com/whyrusleeping/go-logging"
peerstore
"github.com/libp2p/go-libp2p-peerstore"
bhost
"github.com/libp2p/go-libp2p/p2p/host/basic"
msmux
"github.com/whyrusleeping/go-smux-multistream"
yamux
"github.com/whyrusleeping/go-smux-yamux"
)
// makeBasicHost creates a LibP2P host with a random peer ID listening on the
// given multiaddress. It will use secio if secio is true.
func
makeBasicHost
(
listenPort
int
,
secio
bool
)
(
host
.
Host
,
error
)
{
func
makeBasicHost
(
listenPort
int
,
secio
bool
,
randseed
int64
)
(
host
.
Host
,
error
)
{
// If the seed is zero, use real cryptographic randomness. Otherwise, use a
// deterministic randomness source to make generated keys stay the same
// across multiple runs
var
r
io
.
Reader
if
randseed
==
0
{
r
=
rand
.
Reader
}
else
{
r
=
mrand
.
New
(
mrand
.
NewSource
(
randseed
))
}
// Generate a key pair for this host. We will use it at least
// to obtain a valid host ID.
priv
,
pub
,
err
:=
crypto
.
GenerateKeyPair
(
crypto
.
RSA
,
2048
)
priv
,
pub
,
err
:=
crypto
.
GenerateKeyPair
WithReader
(
crypto
.
RSA
,
2048
,
r
)
if
err
!=
nil
{
return
nil
,
err
}
...
...
@@ -55,15 +69,27 @@ func makeBasicHost(listenPort int, secio bool) (host.Host, error) {
ps
.
AddPubKey
(
pid
,
pub
)
}
// Set up stream multiplexer
tpt
:=
msmux
.
NewBlankTransport
()
tpt
.
AddTransport
(
"/yamux/1.0.0"
,
yamux
.
DefaultTransport
)
// Create swarm (implements libP2P Network)
net
wr
k
,
err
:=
swarm
.
New
Netw
or
k
(
s
wr
m
,
err
:=
swarm
.
New
SwarmWithProtect
or
(
context
.
Background
(),
[]
ma
.
Multiaddr
{
addr
},
pid
,
ps
,
nil
)
nil
,
tpt
,
nil
,
)
if
err
!=
nil
{
return
nil
,
err
}
netw
:=
(
*
swarm
.
Network
)(
swrm
)
basicHost
:=
bhost
.
New
(
netw
rk
)
basicHost
:=
bhost
.
New
(
netw
)
// Build host multiaddress
hostAddr
,
_
:=
ma
.
NewMultiaddr
(
fmt
.
Sprintf
(
"/ipfs/%s"
,
basicHost
.
ID
()
.
Pretty
()))
...
...
@@ -91,6 +117,7 @@ func main() {
listenF
:=
flag
.
Int
(
"l"
,
0
,
"wait for incoming connections"
)
target
:=
flag
.
String
(
"d"
,
""
,
"target peer to dial"
)
secio
:=
flag
.
Bool
(
"secio"
,
false
,
"enable secio"
)
seed
:=
flag
.
Int64
(
"seed"
,
0
,
"set random seed for id generation"
)
flag
.
Parse
()
if
*
listenF
==
0
{
...
...
@@ -98,7 +125,7 @@ func main() {
}
// Make a host that listens on the given multiaddress
ha
,
err
:=
makeBasicHost
(
*
listenF
,
*
secio
)
ha
,
err
:=
makeBasicHost
(
*
listenF
,
*
secio
,
*
seed
)
if
err
!=
nil
{
log
.
Fatal
(
err
)
}
...
...
@@ -142,7 +169,7 @@ func main() {
// We have a peer ID and a targetAddr so we add it to the peerstore
// so LibP2P knows how to contact it
ha
.
Peerstore
()
.
AddAddr
(
peerid
,
targetAddr
,
p
eer
store
.
PermanentAddrTTL
)
ha
.
Peerstore
()
.
AddAddr
(
peerid
,
targetAddr
,
pstore
.
PermanentAddrTTL
)
log
.
Println
(
"opening stream"
)
// make a new stream from host B to host A
...
...
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