88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
// Package destination implements the I2P Destination common data structure
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package destination
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import (
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"strings"
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"github.com/go-i2p/logger"
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"github.com/sirupsen/logrus"
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. "github.com/go-i2p/go-i2p/lib/common/keys_and_cert"
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"github.com/go-i2p/go-i2p/lib/common/base32"
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"github.com/go-i2p/go-i2p/lib/common/base64"
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"github.com/go-i2p/go-i2p/lib/crypto"
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)
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var log = logger.GetGoI2PLogger()
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/*
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[Destination]
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Accurate for version 0.9.49
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Description
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A Destination defines a particular endpoint to which messages can be directed for secure delivery.
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Contents
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Identical to KeysAndCert.
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*/
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// Destination is the represenation of an I2P Destination.
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//
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// https://geti2p.net/spec/common-structures#destination
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type Destination struct {
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*KeysAndCert
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}
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// Base32Address returns the I2P base32 address for this Destination.
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func (destination Destination) Base32Address() (str string) {
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log.Debug("Generating Base32 address for Destination")
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cert := destination.KeysAndCert.Certificate()
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dest := cert.Bytes()
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hash := crypto.SHA256(dest)
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str = strings.Trim(base32.EncodeToString(hash[:]), "=")
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str = str + ".b32.i2p"
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log.WithFields(logrus.Fields{
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"base32_address": str,
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}).Debug("Generated Base32 address for Destination")
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return
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}
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// Base64 returns the I2P base64 address for this Destination.
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func (destination Destination) Base64() string {
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log.Debug("Generating Base64 address for Destination")
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cert := destination.KeysAndCert.Certificate()
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dest := cert.Bytes()
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base64Address := base64.EncodeToString(dest)
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log.WithFields(logrus.Fields{
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"base64_address_length": len(base64Address),
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}).Debug("Generated Base64 address for Destination")
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return base64Address
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}
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// ReadDestination returns Destination from a []byte.
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// The remaining bytes after the specified length are also returned.
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// Returns a list of errors that occurred during parsing.
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func ReadDestination(data []byte) (destination Destination, remainder []byte, err error) {
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log.WithFields(logrus.Fields{
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"input_length": len(data),
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}).Debug("Reading Destination from bytes")
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keys_and_cert, remainder, err := ReadKeysAndCert(data)
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destination = Destination{
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keys_and_cert,
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}
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log.WithFields(logrus.Fields{
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"remainder_length": len(remainder),
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}).Debug("Successfully read Destination from bytes")
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return
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}
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