113 lines
2.7 KiB
Go
113 lines
2.7 KiB
Go
// Copyright (C) 2019 Storj Labs, Inc.
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// See LICENSE for copying information.
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package trust
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import (
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"bufio"
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"context"
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"io"
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"net"
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"strconv"
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"strings"
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"github.com/zeebo/errs"
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"storj.io/common/storj"
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)
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var (
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// ErrSatelliteURL is an error class for satellite URL related errors.
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ErrSatelliteURL = errs.Class("invalid satellite URL")
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)
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// SatelliteURL represents a Satellite URL.
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type SatelliteURL struct {
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ID storj.NodeID `json:"id"`
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Host string `json:"host"`
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Port int `json:"port"`
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}
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// Address returns the address (i.e. host:port) of the Satellite.
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func (u *SatelliteURL) Address() string {
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return net.JoinHostPort(u.Host, strconv.Itoa(u.Port))
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}
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// NodeURL returns a full Node URL to the Satellite.
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func (u *SatelliteURL) NodeURL() storj.NodeURL {
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return storj.NodeURL{
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ID: u.ID,
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Address: u.Address(),
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}
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}
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// String returns a string representation of the Satellite URL.
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func (u *SatelliteURL) String() string {
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return u.ID.String() + "@" + u.Address()
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}
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// ParseSatelliteURL parses a Satellite URL. For the purposes of the trust list,
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// the Satellite URL MUST contain both an ID and port designation.
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func ParseSatelliteURL(s string) (SatelliteURL, error) {
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url, err := storj.ParseNodeURL(s)
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if err != nil {
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return SatelliteURL{}, ErrSatelliteURL.Wrap(err)
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}
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if url.ID.IsZero() {
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return SatelliteURL{}, ErrSatelliteURL.New("must contain an ID")
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}
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if url.Address == "" {
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return SatelliteURL{}, ErrSatelliteURL.New("must specify the host:port")
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}
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// storj.ParseNodeURL will have already verified that the address is
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// well-formed, so if SplitHostPort fails it should be due to the address
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// not having a port
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host, portStr, err := net.SplitHostPort(url.Address)
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if err != nil {
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return SatelliteURL{}, ErrSatelliteURL.New("must specify the port")
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}
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// Port should already be numeric so this shouldn't fail, but just in case.
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port, err := strconv.Atoi(portStr)
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if err != nil {
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return SatelliteURL{}, ErrSatelliteURL.New("port is not numeric")
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}
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return SatelliteURL{
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ID: url.ID,
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Host: host,
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Port: port,
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}, nil
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}
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// ParseSatelliteURLList parses a newline separated list of Satellite URLs.
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// Empty lines or lines starting with '#' (comments) are ignored.
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func ParseSatelliteURLList(ctx context.Context, r io.Reader) (urls []SatelliteURL, err error) {
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defer mon.Task()(&ctx)(&err)
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scanner := bufio.NewScanner(r)
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for scanner.Scan() {
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line := strings.TrimSpace(scanner.Text())
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if len(line) == 0 {
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continue
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}
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if line[0] == '#' {
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continue
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}
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url, err := ParseSatelliteURL(line)
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if err != nil {
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return nil, err
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}
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urls = append(urls, url)
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}
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if err := scanner.Err(); err != nil {
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return nil, Error.Wrap(err)
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}
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return urls, nil
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}
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