add support for body paramater in xmpp uri

src/main/java/eu/siacs/conversations/ui/StartConversationActivity.java

@@ -424,7 +424,7 @@ public class StartConversationActivity extends XmppActivity implements OnRosterU
                     if (invite != null && invite.hasFingerprints()) {
                         xmppConnectionService.verifyFingerprints(contact,invite.getFingerprints());
                     }
-                    switchToConversation(contact);
+                    switchToConversation(contact, invite == null ? null : invite.getBody());
                     return true;
                 }
             }
@@ -563,11 +563,11 @@ public class StartConversationActivity extends XmppActivity implements OnRosterU
         return xmppConnectionService.findAccountByJid(jid);
     }
 
-    protected void switchToConversation(Contact contact) {
+    protected void switchToConversation(Contact contact, String body) {
         Conversation conversation = xmppConnectionService
                 .findOrCreateConversation(contact.getAccount(),
                         contact.getJid(), false);
-        switchToConversation(conversation);
+        switchToConversation(conversation, body, false);
     }
 
     public static void populateAccountSpinner(Context context, List<String> accounts, Spinner spinner) {
@@ -856,7 +856,7 @@ public class StartConversationActivity extends XmppActivity implements OnRosterU
         if (invite.isMuc()) {
             Conversation muc = xmppConnectionService.findFirstMuc(invite.getJid());
             if (muc != null) {
-                switchToConversation(muc);
+                switchToConversation(muc,invite.getBody(),false);
                 return true;
             } else {
                 showJoinConferenceDialog(invite.getJid().toBareJid().toString());
@@ -870,7 +870,7 @@ public class StartConversationActivity extends XmppActivity implements OnRosterU
             if (invite.hasFingerprints()) {
                 xmppConnectionService.verifyFingerprints(contact,invite.getFingerprints());
             }
-            switchToConversation(contact);
+            switchToConversation(contact,invite.getBody());
             return true;
         } else {
             if (mMenuSearchView != null) {

src/main/java/eu/siacs/conversations/utils/XmppUri.java

@@ -16,6 +16,7 @@ public class XmppUri {
 	protected String jid;
 	protected boolean muc;
 	protected List<Fingerprint> fingerprints = new ArrayList<>();
+	private String body;
 
 	public static final String OMEMO_URI_PARAM = "omemo-sid-";
 	public static final String OTR_URI_PARAM = "otr-fingerprint";
@@ -55,13 +56,14 @@ public class XmppUri {
 			muc = segments.size() > 1 && "j".equalsIgnoreCase(segments.get(0));
 		} else if ("xmpp".equalsIgnoreCase(scheme)) {
 			// sample: xmpp:foo@bar.com
-			muc = "join".equalsIgnoreCase(uri.getQuery());
+			muc = isMuc(uri.getQuery());
 			if (uri.getAuthority() != null) {
 				jid = uri.getAuthority();
 			} else {
 				jid = uri.getSchemeSpecificPart().split("\\?")[0];
 			}
 			this.fingerprints = parseFingerprints(uri.getQuery());
+			this.body = parseBody(uri.getQuery());
 		} else if ("imto".equalsIgnoreCase(scheme)) {
 			// sample: imto://xmpp/foo@bar.com
 			try {
@@ -102,6 +104,30 @@ public class XmppUri {
 		return fingerprints;
 	}
 
+	protected String parseBody(String query) {
+		for(String pair : query == null ? new String[0] : query.split(";")) {
+			final String[] parts = pair.split("=",2);
+			if (parts.length == 2 && "body".equals(parts[0].toLowerCase(Locale.US))) {
+				try {
+					return URLDecoder.decode(parts[1],"UTF-8");
+				} catch (UnsupportedEncodingException e) {
+					return null;
+				}
+			}
+		}
+		return null;
+	}
+
+	protected boolean isMuc(String query) {
+		for(String pair : query == null ? new String[0] : query.split(";")) {
+			final String[] parts = pair.split("=",2);
+			if (parts.length == 1 && "join".equals(parts[0])) {
+				return true;
+			}
+		}
+		return false;
+	}
+
 	public Jid getJid() {
 		try {
 			return this.jid == null ? null :Jid.fromString(this.jid.toLowerCase());
@@ -110,6 +136,10 @@ public class XmppUri {
 		}
 	}
 
+	public String getBody() {
+		return body;
+	}
+
 	public List<Fingerprint> getFingerprints() {
 		return this.fingerprints;
 	}