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105 lines
3.2 KiB
105 lines
3.2 KiB
// Copyright 2017-2018 DERO Project. All rights reserved.
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// Use of this source code in any form is governed by RESEARCH license.
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// license can be found in the LICENSE file.
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// GPG: 0F39 E425 8C65 3947 702A 8234 08B2 0360 A03A 9DE8
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//
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package p2pv2
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//import "net"
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//import "sync"
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import "time"
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//import "container/list"
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//import log "github.com/sirupsen/logrus"
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import "github.com/vmihailenco/msgpack"
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//import "github.com/arnaucode/derosuite/crypto"
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import "github.com/arnaucode/derosuite/globals"
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//import "github.com/arnaucode/derosuite/blockchain"
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// This file defines what all needs to be responded to become a server ( handling incoming requests)
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// fill the common part from our chain
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func fill_common(common *Common) {
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common.Height = chain.Get_Height() - 1
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common.Top_ID, _ = chain.Load_BL_ID_at_Height(common.Height - 1)
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common.Cumulative_Difficulty = chain.Load_Block_Cumulative_Difficulty(common.Top_ID)
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common.Top_Version = 6 // this must be taken from the hardfork
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}
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// send the handshake command
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// when we initiate a connection, we immediately send a handshake
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func (conn *Connection) Send_Handshake_Command() {
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var h Handshake
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fill_common(&h.Common) // fill common information
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conn.Lock()
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defer conn.Unlock()
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// fill other information
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h.Local_Time = time.Now().UTC().Unix()
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h.Local_Port = 0
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h.PeerID = 0
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h.Network_ID = globals.Config.Network_ID
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//PeerList []Peer_Info `msgpack:"PLIST"`
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//Extension_List []string `msgpack:"EXT"`
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//serialize and send
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b, err := msgpack.Marshal(h)
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if err != nil {
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panic(err)
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}
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conn.Send_Message(b) // send the message to peer
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}
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// a handshake command has been received, make the most of it
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func (conn *Connection) Handle_Handshake_Command(h *Handshake) {
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conn.Lock()
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defer conn.Unlock()
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if h.Network_ID != globals.Config.Network_ID {
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logger.Debugf("Connection represents different network %x rejecting peer err:%s\n", h.Network_ID)
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conn.Exit = true
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}
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// TODO check whether the peer represents current hardfork, if not reject
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// TODO check if the peer time is +- 2hrs from the our time , reject him ,
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// fill other information
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h.Local_Time = time.Now().UTC().Unix()
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h.Local_Port = 0
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h.PeerID = 0
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h.Network_ID = globals.Config.Network_ID
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//PeerList []Peer_Info `msgpack:"PLIST"`
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//Extension_List []string `msgpack:"EXT"`
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//serialize and send
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b, err := msgpack.Marshal(h)
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if err != nil {
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panic(err)
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}
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conn.Send_Message(b) // send the message to peer
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}
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