Get ONVIF entry points programmatically

mnit-rtmc · Dec 22, 2023 · 246bcd4 · 246bcd4
1 parent 0cb4703
commit 246bcd4
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Showing 3 changed files with 39 additions and 6 deletions.
diff --git a/src/us/mn/state/dot/tms/server/comm/onvifptz/DOMUtils.java b/src/us/mn/state/dot/tms/server/comm/onvifptz/DOMUtils.java
@@ -57,7 +57,7 @@ public static String getString(Node n) {
 	public static Document getDocument(String s) {
 		Document doc = null;
 		try {
-			DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
+			DocumentBuilder db = DocumentBuilderFactory.newNSInstance().newDocumentBuilder();
 			InputSource is = new InputSource();
 			is.setCharacterStream(new StringReader(s));
 			doc = db.parse(is);

diff --git a/src/us/mn/state/dot/tms/server/comm/onvifptz/DeviceService.java b/src/us/mn/state/dot/tms/server/comm/onvifptz/DeviceService.java
@@ -15,6 +15,7 @@
 package us.mn.state.dot.tms.server.comm.onvifptz;
 
 import javax.xml.parsers.ParserConfigurationException;
+import org.w3c.dom.NodeList;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 
@@ -56,6 +57,39 @@ public String getServices() {
 		return sendRequestDocument(doc);
 	}
 
+	/** Gets a service address by its namespace */
+	public String getServiceAddr(String namespace) {
+		String servicesRes = getServices();
+		Document servicesDoc = DOMUtils.getDocument(servicesRes);
+
+		NodeList services = servicesDoc.getElementsByTagNameNS("*", "Service");
+		for (int i = 0; i < services.getLength(); i++) {
+			Element service = (Element) services.item(i);
+			Element ns = (Element) service.getElementsByTagNameNS("*", "Namespace").item(0);
+
+			if (ns.getTextContent().equalsIgnoreCase(namespace)) {
+				Element addr = (Element) service.getElementsByTagNameNS("*", "XAddr").item(0);
+				return addr.getTextContent();
+			}
+		}
+		return null;
+	}
+
+	/** Get the PTZ binding address */
+	public String getPTZBinding() {
+		return getServiceAddr("http://www.onvif.org/ver20/ptz/wsdl");
+	}
+
+	/** Get the media binding address */
+	public String getMediaBinding() {
+		return getServiceAddr("http://www.onvif.org/ver10/media/wsdl");
+	}
+
+	/** Get the imaging binding address */
+	public String getImagingBinding() {
+		return getServiceAddr("http://www.onvif.org/ver20/imaging/wsdl");
+	}
+
 	/** Document builder function for GetScopes */
 	public Document getScopesDocument() {
 		Document doc = getBaseDocument();

diff --git a/src/us/mn/state/dot/tms/server/comm/onvifptz/OnvifProp.java b/src/us/mn/state/dot/tms/server/comm/onvifptz/OnvifProp.java
@@ -70,12 +70,11 @@ public String sendSoap() {
 			return "No cmd specified";
 		}
 
-		// create each service
-		// TODO: generalize service paths? (device service specified by ONVIF standard)
+		// create each service (device service binding specified by ONVIF standard)
 		DeviceService dev = DeviceService.getDeviceService(url + "/onvif/device_service", user, pass);
-		PTZService ptz = PTZService.getPTZService(url + ":80/onvif/ptz", user, pass);
-		MediaService media = MediaService.getMediaService(url + ":80/onvif/media", user, pass);
-		ImagingService img = ImagingService.getImagingService(url + ":80/onvif/imaging", user, pass);
+		PTZService ptz = PTZService.getPTZService(dev.getPTZBinding(), user, pass);
+		MediaService media = MediaService.getMediaService(dev.getMediaBinding(), user, pass);
+		ImagingService img = ImagingService.getImagingService(dev.getImagingBinding(), user, pass);
 
 		String mediaProfile = null, videoSource = null;
 		int mediaWidth = 0, videoWidth = 0;  // to find maximum values