60 lines
890 B
Go
60 lines
890 B
Go
package gost
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import (
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"net"
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)
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type Chain struct {
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Nodes []Node
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}
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func NewChain(nodes ...Node) *Chain {
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return &Chain{
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Nodes: nodes,
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}
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}
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func (c *Chain) Dial(addr string) (net.Conn, error) {
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if len(c.Nodes) == 0 {
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return net.Dial("tcp", addr)
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}
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nodes := c.Nodes
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conn, err := nodes[0].Client.Dial(nodes[0].Addr)
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if err != nil {
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return nil, err
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}
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conn, err = nodes[0].Client.Handshake(conn)
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if err != nil {
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return nil, err
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}
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for i, node := range nodes {
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if i == len(nodes)-1 {
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break
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}
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next := nodes[i+1]
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cc, err := node.Client.Connect(conn, next.Addr)
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if err != nil {
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conn.Close()
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return nil, err
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}
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cc, err = next.Client.Handshake(cc)
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if err != nil {
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conn.Close()
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return nil, err
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}
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conn = cc
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}
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cc, err := nodes[len(nodes)-1].Client.Connect( conn, addr)
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if err != nil {
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conn.Close()
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return nil, err
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}
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return cc, nil
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}
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