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Refinements to UPnP documentation

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This commit is contained in:
Caleb Callaway 2014-10-17 19:01:25 -07:00
parent c4d15b3b95
commit 75d5e74059
1 changed files with 12 additions and 5 deletions
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17
internal/upnp/upnp.go
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@ -16,7 +16,7 @@
// Adapted from https://github.com/jackpal/Taipei-Torrent/blob/dd88a8bfac6431c01d959ce3c745e74b8a911793/IGD.go
// Copyright (c) 2010 Jack Palevich (https://github.com/jackpal/Taipei-Torrent/blob/dd88a8bfac6431c01d959ce3c745e74b8a911793/LICENSE)
// Package upnp implements UPnP Internet Gateway upnpDevice port mappings
// Package upnp implements UPnP InternetGatewayDevice discovery, querying, and port mapping.
package upnp
import (
@ -35,6 +35,7 @@ import (
"time"
)
// A container for relevant properties of a UPnP InternetGatewayDevice.
type IGD struct {
uuid string
friendlyName string
@ -43,6 +44,7 @@ type IGD struct {
localIPAddress string
}
// A container for relevant properties of a UPnP service of an IGD.
type IGDServiceDescription struct {
serviceURL string
serviceURN string
@ -71,8 +73,8 @@ type upnpRoot struct {
Device upnpDevice `xml:"device"`
}
// Discover UPnP InternetGatewayDevices
// The order in which the devices appear in the result list is not deterministic
// Discover discovers UPnP InternetGatewayDevices.
// The order in which the devices appear in the result list is not deterministic.
func Discover() []*IGD {
result := make([]*IGD, 0)
l.Infoln("Starting UPnP discovery...")
@ -107,8 +109,7 @@ func Discover() []*IGD {
return result
}
// Search for UPnP InternetGatewayDevices for <timeout> seconds
// Ignore responses from any devices listed in <knownDevices>
// Search for UPnP InternetGatewayDevices for <timeout> seconds, ignoring responses from any devices listed in knownDevices.
// The order in which the devices appear in the result list is not deterministic
func discover(deviceType string, timeout int, knownDevices []*IGD) []*IGD {
ssdp := &net.UDPAddr{IP: []byte{239, 255, 255, 250}, Port: 1900}
@ -467,6 +468,7 @@ func soapRequest(url, device, function, message string) error {
return nil
}
// Add a port mapping to the specified InternetGatewayDevice.
func (n *IGD) AddPortMapping(protocol Protocol, externalPort, internalPort int, description string, timeout int) error {
for _, service := range n.services {
tpl := `<u:AddPortMapping xmlns:u="%s">
@ -489,6 +491,7 @@ func (n *IGD) AddPortMapping(protocol Protocol, externalPort, internalPort int,
return nil
}
// Delete a port mapping from the specified InternetGatewayDevice.
func (n *IGD) DeletePortMapping(protocol Protocol, externalPort int) (err error) {
for _, service := range n.services {
tpl := `<u:DeletePortMapping xmlns:u="%s">
@ -506,18 +509,22 @@ func (n *IGD) DeletePortMapping(protocol Protocol, externalPort int) (err error)
return nil
}
// The InternetGatewayDevice's UUID.
func (n *IGD) UUID() string {
return n.uuid
}
// The InternetGatewayDevice's friendly name.
func (n *IGD) FriendlyName() string {
return n.friendlyName
}
// The InternetGatewayDevice's friendly identifier (friendly name + IP address).
func (n *IGD) FriendlyIdentifier() string {
return "'" + n.FriendlyName() + "' (" + strings.Split(n.URL().Host, ":")[0] + ")"
}
// The URL of the InternetGatewayDevice's root device description.
func (n *IGD) URL() *url.URL {
return n.url
}