dlna: icons and compatibility improvements

Brings in icons for devices to display.  Based on what some
other open implementations have done, it's worth having a simple
stub implmentation of ConnectionManagerService.  Advertise
X_MS_MediaReceiverRegistrar as well, which sounds like it
is necessary for certain MSFT devices (like the X-Box.)

cmd/serve/dlna/cms.go

@@ -0,0 +1,26 @@
+package dlna
+
+import (
+	"net/http"
+
+	"github.com/anacrolix/dms/upnp"
+)
+
+const defaultProtocolInfo = "http-get:*:video/mpeg:*,http-get:*:video/mp4:*,http-get:*:video/vnd.dlna.mpeg-tts:*,http-get:*:video/avi:*,http-get:*:video/x-matroska:*,http-get:*:video/x-ms-wmv:*,http-get:*:video/wtv:*,http-get:*:audio/mpeg:*,http-get:*:audio/mp3:*,http-get:*:audio/mp4:*,http-get:*:audio/x-ms-wma*,http-get:*:audio/wav:*,http-get:*:audio/L16:*,http-get:*image/jpeg:*,http-get:*image/png:*,http-get:*image/gif:*,http-get:*image/tiff:*"
+
+type connectionManagerService struct {
+	*server
+	upnp.Eventing
+}
+
+func (cms *connectionManagerService) Handle(action string, argsXML []byte, r *http.Request) (map[string]string, error) {
+	switch action {
+	case "GetProtocolInfo":
+		return map[string]string{
+			"Source": defaultProtocolInfo,
+			"Sink":   "",
+		}, nil
+	default:
+		return nil, upnp.InvalidActionError
+	}
+}

cmd/serve/dlna/data/static/X_MS_MediaReceiverRegistrar.xml

@@ -0,0 +1,88 @@
+<?xml version="1.0" ?>
+<scpd xmlns="urn:schemas-upnp-org:service-1-0">
+	<specVersion>
+		<major>1</major>
+		<minor>0</minor>
+	</specVersion>
+	<actionList>
+		<action>
+			<name>IsAuthorized</name>
+			<argumentList>
+				<argument>
+					<name>DeviceID</name>
+					<direction>in</direction>
+					<relatedStateVariable>A_ARG_TYPE_DeviceID</relatedStateVariable>
+				</argument>
+				<argument>
+					<name>Result</name>
+					<direction>out</direction>
+					<relatedStateVariable>A_ARG_TYPE_Result</relatedStateVariable>
+				</argument>
+			</argumentList>
+		</action>
+		<action>
+			<name>RegisterDevice</name>
+			<argumentList>
+				<argument>
+					<name>RegistrationReqMsg</name>
+					<direction>in</direction>
+					<relatedStateVariable>A_ARG_TYPE_RegistrationReqMsg</relatedStateVariable>
+				</argument>
+				<argument>
+					<name>RegistrationRespMsg</name>
+					<direction>out</direction>
+					<relatedStateVariable>A_ARG_TYPE_RegistrationRespMsg</relatedStateVariable>
+				</argument>
+			</argumentList>
+		</action>
+		<action>
+			<name>IsValidated</name>
+			<argumentList>
+				<argument>
+					<name>DeviceID</name>
+					<direction>in</direction>
+					<relatedStateVariable>A_ARG_TYPE_DeviceID</relatedStateVariable>
+				</argument>
+				<argument>
+					<name>Result</name>
+					<direction>out</direction>
+					<relatedStateVariable>A_ARG_TYPE_Result</relatedStateVariable>
+				</argument>
+			</argumentList>
+		</action>
+	</actionList>
+	<serviceStateTable>
+		<stateVariable sendEvents="no">
+			<name>A_ARG_TYPE_DeviceID</name>
+			<dataType>string</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="no">
+			<name>A_ARG_TYPE_Result</name>
+			<dataType>int</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="no">
+			<name>A_ARG_TYPE_RegistrationReqMsg</name>
+			<dataType>bin.base64</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="no">
+			<name>A_ARG_TYPE_RegistrationRespMsg</name>
+			<dataType>bin.base64</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="yes">
+			<name>AuthorizationGrantedUpdateID</name>
+			<dataType>ui4</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="yes">
+			<name>AuthorizationDeniedUpdateID</name>
+			<dataType>ui4</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="yes">
+			<name>ValidationSucceededUpdateID</name>
+			<dataType>ui4</dataType>
+		</stateVariable>
+		<stateVariable sendEvents="yes">
+			<name>ValidationRevokedUpdateID</name>
+			<dataType>ui4</dataType>
+		</stateVariable>
+	</serviceStateTable>
+</scpd>

cmd/serve/dlna/dlna.go

@@ -115,6 +115,9 @@ func newServer(f fs.Fs, opt *dlnaflags.Options) *server {
 		"ContentDirectory": &contentDirectoryService{
 			server: s,
 		},
+		"ConnectionManager": &connectionManagerService{
+			server: s,
+		},
 	}
 	s.RootDeviceUUID = makeDeviceUUID(s.FriendlyName)
 
@@ -166,6 +169,22 @@ var rootDescTmpl = template.Must(template.New("rootDesc").Parse(`<?xml version="
     <modelURL>https://rclone.org/</modelURL>
     <serialNumber>00000000</serialNumber>
     <UDN>{{.RootDeviceUUID}}</UDN>
+    <iconList>
+      <icon>
+        <mimetype>image/png</mimetype>
+        <width>48</width>
+        <height>48</height>
+        <depth>8</depth>
+        <url>/static/rclone-48x48.png</url>
+      </icon>
+      <icon>
+        <mimetype>image/png</mimetype>
+        <width>120</width>
+        <height>120</height>
+        <depth>8</depth>
+        <url>/static/rclone-120x120.png</url>
+      </icon>
+	</iconList>
     <serviceList>
       <service>
         <serviceType>urn:schemas-upnp-org:service:ContentDirectory:1</serviceType>
@@ -181,6 +200,13 @@ var rootDescTmpl = template.Must(template.New("rootDesc").Parse(`<?xml version="
         <controlURL>/ctl</controlURL>
         <eventSubURL></eventSubURL>
       </service>
+      <service>
+        <serviceType>urn:microsoft.com:service:X_MS_MediaReceiverRegistrar:1</serviceType>
+        <serviceId>urn:microsoft.com:serviceId:X_MS_MediaReceiverRegistrar</serviceId>
+        <SCPDURL>/static/X_MS_MediaReceiverRegistrar.xml</SCPDURL>
+        <controlURL>/ctl</controlURL>
+        <eventSubURL></eventSubURL>
+	  </service>
     </serviceList>
     <presentationURL>/</presentationURL>
   </device>
@@ -348,7 +374,8 @@ func (s *server) ssdpInterface(intf net.Interface) {
 			"urn:schemas-upnp-org:device:MediaServer:1"},
 		Services: []string{
 			"urn:schemas-upnp-org:service:ContentDirectory:1",
-			"urn:schemas-upnp-org:service:ConnectionManager:1"},
+			"urn:schemas-upnp-org:service:ConnectionManager:1",
+			"urn:microsoft.com:service:X_MS_MediaReceiverRegistrar:1"},
 		Location:       advertiseLocationFn,
 		Server:         serverField,
 		UUID:           s.RootDeviceUUID,