made scan and show qr code more accessible in VerifyOtrActivity

1 files changed, 79 insertions, 0 deletions

diff --git a/src/main/java/eu/siacs/conversations/utils/XmppUri.java b/src/main/java/eu/siacs/conversations/utils/XmppUri.java
new file mode 100644
index 00000000..09abd049
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/utils/XmppUri.java
@@ -0,0 +1,79 @@
+package eu.siacs.conversations.utils;
+
+import android.net.Uri;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+
+import eu.siacs.conversations.utils.CryptoHelper;
+import eu.siacs.conversations.xmpp.jid.InvalidJidException;
+import eu.siacs.conversations.xmpp.jid.Jid;
+
+public class XmppUri {
+
+	private String jid;
+	private boolean muc;
+	private String fingerprint;
+
+	public XmppUri(String uri) {
+		try {
+			parse(Uri.parse(uri));
+		} catch (IllegalArgumentException e) {
+			jid = null;
+		}
+	}
+
+	public XmppUri(Uri uri) {
+		parse(uri);
+	}
+
+	protected void parse(Uri uri) {
+		String scheme = uri.getScheme();
+		if ("xmpp".equals(scheme)) {
+			// sample: xmpp:jid@foo.com
+			muc = "join".equalsIgnoreCase(uri.getQuery());
+			if (uri.getAuthority() != null) {
+				jid = uri.getAuthority();
+			} else {
+				jid = uri.getSchemeSpecificPart().split("\\?")[0];
+			}
+			fingerprint = parseFingerprint(uri.getQuery());
+		} else if ("imto".equals(scheme)) {
+			// sample: imto://xmpp/jid@foo.com
+			try {
+				jid = URLDecoder.decode(uri.getEncodedPath(), "UTF-8").split("/")[1];
+			} catch (final UnsupportedEncodingException ignored) {
+			}
+		}
+	}
+
+	protected  String parseFingerprint(String query) {
+		if (query == null) {
+			return null;
+		} else {
+			final String NEEDLE = "otr-fingerprint=";
+			int index = query.indexOf(NEEDLE);
+			if (index >= 0 && query.length() >= (NEEDLE.length() + index + 40)) {
+				return CryptoHelper.prettifyFingerprint(query.substring(index + NEEDLE.length(), index + NEEDLE.length() + 40));
+			} else {
+				return null;
+			}
+		}
+	}
+
+	public Jid getJid() {
+		try {
+			return Jid.fromString(this.jid);
+		} catch (InvalidJidException e) {
+			return null;
+		}
+	}
+
+	public String getFingerprint() {
+		return this.fingerprint;
+	}
+
+	public boolean isMuc() {
+		return this.muc;
+	}
+}