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69 lines
2.1 KiB
Go
69 lines
2.1 KiB
Go
package libp2p
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import (
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"github.com/libp2p/go-libp2p/config"
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"github.com/libp2p/go-libp2p/core/host"
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)
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// Config describes a set of settings for a libp2p node.
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type Config = config.Config
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// Option is a libp2p config option that can be given to the libp2p constructor
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// (`libp2p.New`).
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type Option = config.Option
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// ChainOptions chains multiple options into a single option.
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func ChainOptions(opts ...Option) Option {
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return func(cfg *Config) error {
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for _, opt := range opts {
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if opt == nil {
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continue
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}
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if err := opt(cfg); err != nil {
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return err
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}
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}
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return nil
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}
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}
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// New constructs a new libp2p node with the given options, falling back on
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// reasonable defaults. The defaults are:
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//
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// - If no transport and listen addresses are provided, the node listens to
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// the multiaddresses "/ip4/0.0.0.0/tcp/0" and "/ip6/::/tcp/0";
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//
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// - If no transport options are provided, the node uses TCP, websocket and QUIC
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// transport protocols;
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//
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// - If no multiplexer configuration is provided, the node is configured by
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// default to use yamux;
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//
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// - If no security transport is provided, the host uses the go-libp2p's noise
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// and/or tls encrypted transport to encrypt all traffic;
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//
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// - If no peer identity is provided, it generates a random Ed25519 key-pair
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// and derives a new identity from it;
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//
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// - If no peerstore is provided, the host is initialized with an empty
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// peerstore.
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//
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// To stop/shutdown the returned libp2p node, the user needs to call `Close` on the returned Host.
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func New(opts ...Option) (host.Host, error) {
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return NewWithoutDefaults(append(opts, FallbackDefaults)...)
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}
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// NewWithoutDefaults constructs a new libp2p node with the given options but
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// *without* falling back on reasonable defaults.
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//
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// Warning: This function should not be considered a stable interface. We may
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// choose to add required services at any time and, by using this function, you
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// opt-out of any defaults we may provide.
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func NewWithoutDefaults(opts ...Option) (host.Host, error) {
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var cfg Config
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if err := cfg.Apply(opts...); err != nil {
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return nil, err
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}
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return cfg.NewNode()
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}
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