83 lines
2.4 KiB
Go
83 lines
2.4 KiB
Go
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package host
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import (
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"log"
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"strings"
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)
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// URI is a string type, accessed via the pre-defined variables, and represent
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// the URI pattern used to connect to a host.
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// Example:
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// Driver[+Transport]://<host or empty for local>[:PORT]/<path>[?Options&in=uri&format]
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type URI struct {
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Driver string
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Transport string
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Path string
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Options []string
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}
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// CustomURI create and return a custom URI method, following RFC2396,
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// keeping in mind that the hostname will be inserted between the transport and path
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func CustomURI(driver, transport, path string, options ...string) *URI {
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return &URI{
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Driver: driver,
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Transport: transport,
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Path: path,
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Options: options,
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}
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}
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// URIs available to build connections to a libvirt host
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var (
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// URI for connecting to a remote QEMU system over SSH
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URI_QEMU_SSH_SYSTEM = &URI{Driver: "qemu", Transport: "ssh", Path: "system"}
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// URI for connecting to a remote QEMU system over TLS
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// Builds the URI qemu://<host:port>/system
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URI_QEMU_TLS_SYSTEM = &URI{Driver: "qemu", Transport: "", Path: "system"}
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// URI for connecting to a remote QEMU session over SSH
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URI_QEMU_SSH_SESSION = &URI{Driver: "qemu", Transport: "ssh", Path: "session"}
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// URI for connecting to a local QEMU system over a UNIX socket
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URI_QEMU_UNIX_SYSTEM = &URI{Driver: "qemu", Transport: "unix", Path: "system"}
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// URI for connecting to a remote QEMU system over unsecured TCP
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URI_QEMU_TCP_SYSTEM = &URI{Driver: "qemu", Transport: "tcp", Path: "system"}
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// URI for connecting to a remote XEN system with SSH
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URI_XEN_SSH_SYSTEM = &URI{Driver: "xen", Transport: "ssh", Path: "system"}
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// URI for connecting to a remote XEN system over TLS
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URI_XEN_TLS_SYSTEM = &URI{Driver: "xen", Transport: "", Path: "system"}
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)
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// ConnectionString takes a host name to interpolate into a URI and returns the string
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func (u *URI) ConnectionString(h string) string {
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var sb strings.Builder
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optlen := len(u.Options)
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sb.WriteString(u.Driver)
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if u.Transport != "" {
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sb.WriteRune('+')
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sb.WriteString(u.Transport)
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}
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sb.WriteString("://")
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if h != "" {
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sb.WriteString(h)
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}
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sb.WriteRune('/')
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sb.WriteString(u.Path)
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if optlen > 0 {
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sb.WriteRune('?')
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for i, o := range u.Options {
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sb.WriteString(o)
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if optlen != i+1 {
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sb.WriteRune('&')
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}
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}
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}
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log.Printf("Connection URI: %s", sb.String())
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return sb.String()
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}
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// AddOpt adds more options to the option list
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func (u *URI) AddOpt(opt string) {
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u.Options = append(u.Options, opt)
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}
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