wehub-resource-sync
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
// Package sshurl parses ssh:// URLs into components for use with the ssh binary.
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package sshurl
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import (
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"fmt"
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"net"
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"net/url"
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)
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// Parsed holds the components of an ssh:// URL.
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type Parsed struct {
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Host string // hostname or user@hostname
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Port string // port number, or "" for default
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Path string // absolute remote path (starts with /)
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}
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// SSHArgs returns the ssh command arguments for connecting to this host.
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// If a port is specified, -p is included.
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func (p Parsed) SSHArgs() []string {
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args := []string{"-o", "BatchMode=yes", "-o", "StrictHostKeyChecking=yes", "-o", "ConnectTimeout=5"}
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if p.Port != "" {
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args = append(args, "-p", p.Port)
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}
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args = append(args, p.Host)
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return args
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}
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// Parse parses an ssh:// URL into host, port, and path components.
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// Accepts formats like ssh://host/path, ssh://user@host/path, ssh://host:2222/path.
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func Parse(raw string) (Parsed, error) {
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u, err := url.Parse(raw)
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if err != nil {
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return Parsed{}, fmt.Errorf("invalid ssh URL %q: %w", raw, err)
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}
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if u.Scheme != "ssh" {
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return Parsed{}, fmt.Errorf("expected ssh:// scheme, got %q", u.Scheme)
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}
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if u.Path == "" {
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return Parsed{}, fmt.Errorf("ssh URL missing path: %s", raw)
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}
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host := u.Hostname()
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if u.User != nil {
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host = u.User.Username() + "@" + host
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}
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port := u.Port()
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// net/url splits host:port correctly; verify with SplitHostPort for edge cases.
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if port == "" && u.Host != host {
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if _, p, err := net.SplitHostPort(u.Host); err == nil {
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port = p
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}
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}
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return Parsed{
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Host: host,
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Port: port,
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Path: u.Path,
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}, nil
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}
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