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refactored xmpp uri parsing to expose all params

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This commit is contained in:
Christian Schneppe 2020-01-24 16:10:56 +01:00
parent a508f95c3f
commit f4a207e859
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1 changed files with 64 additions and 72 deletions
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136
src/main/java/de/pixart/messenger/utils/XmppUri.java
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@ -1,16 +1,23 @@
package de.pixart.messenger.utils;
import android.net.Uri;
import android.util.Log;
import androidx.annotation.NonNull;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import org.jetbrains.annotations.NotNull;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.regex.Pattern;
import de.pixart.messenger.Config;
import rocks.xmpp.addr.Jid;
public class XmppUri {
@ -19,9 +26,7 @@ public class XmppUri {
protected String jid;
protected String fingerprint;
private List<Fingerprint> fingerprints = new ArrayList<>();
private String body;
private String name;
private String action;
private Map<String, String> parameters = Collections.emptyMap();
private boolean safeSource = true;
public static final String OMEMO_URI_PARAM = "omemo-sid-";
private static final String OTR_URI_PARAM = "otr-fingerprint";
@ -69,7 +74,6 @@ public class XmppUri {
try {
jid = Jid.of(lameUrlDecode(segments.get(1))).toString();
} catch (Exception e) {
Log.d(Config.LOGTAG, "parsing failed ", e);
jid = null;
}
} else if (segments.size() >= 3) {
@ -77,30 +81,24 @@ public class XmppUri {
jid = segments.get(1) + "@" + segments.get(2);
}
if (segments.size() > 1 && "j".equalsIgnoreCase(segments.get(0))) {
action = ACTION_JOIN;
this.parameters = ImmutableMap.of(ACTION_JOIN, "");
}
fingerprints = parseFingerprints(uri.getQuery(),'&');
final Map<String, String> parameters = parseParameters(uri.getQuery(), '&');
this.fingerprints = parseFingerprints(parameters);
} else if ("xmpp".equalsIgnoreCase(scheme)) {
// sample: xmpp:foo@bar.com
final String query = uri.getQuery();
if (hasAction(query, ACTION_JOIN)) {
this.action = ACTION_JOIN;
} else if (hasAction(query, ACTION_MESSAGE)) {
this.action = ACTION_MESSAGE;
}
this.parameters = parseParameters(uri.getQuery(), ';');
if (uri.getAuthority() != null) {
jid = uri.getAuthority();
} else {
String[] parts = uri.getSchemeSpecificPart().split("\\?");
final String[] parts = uri.getSchemeSpecificPart().split("\\?");
if (parts.length > 0) {
jid = parts[0];
} else {
return;
}
}
this.fingerprints = parseFingerprints(uri.getQuery());
this.body = parseParameter("body", uri.getQuery());
this.name = parseParameter("name", uri.getQuery());
this.fingerprints = parseFingerprints(parameters);
} else if ("imto".equalsIgnoreCase(scheme)) {
// sample: imto://xmpp/foo@bar.com
try {
@ -117,6 +115,34 @@ public class XmppUri {
}
}
private static Map<String, String> parseParameters(final String query, final char seperator) {
final ImmutableMap.Builder<String, String> builder = new ImmutableMap.Builder<>();
final String[] pairs = query == null ? new String[0] : query.split(String.valueOf(seperator));
for (String pair : pairs) {
final String[] parts = pair.split("=", 2);
if (parts.length == 0) {
continue;
}
final String key = parts[0].toLowerCase(Locale.US);
final String value;
if (parts.length == 2) {
String decoded;
try {
decoded = URLDecoder.decode(parts[1], "UTF-8");
} catch (UnsupportedEncodingException e) {
decoded = "";
}
value = decoded;
} else {
value = "";
}
builder.put(key, value);
}
return builder.build();
}
@Override
@NonNull
public String toString() {
if (uri != null) {
return uri.toString();
@ -124,60 +150,25 @@ public class XmppUri {
return "";
}
private List<Fingerprint> parseFingerprints(String query) {
return parseFingerprints(query, ';');
}
private List<Fingerprint> parseFingerprints(String query, char seperator) {
List<Fingerprint> fingerprints = new ArrayList<>();
String[] pairs = query == null ? new String[0] : query.split(String.valueOf(seperator));
for (String pair : pairs) {
String[] parts = pair.split("=", 2);
if (parts.length == 2) {
String key = parts[0].toLowerCase(Locale.US);
String value = parts[1].toLowerCase(Locale.US);
if (OTR_URI_PARAM.equals(key)) {
fingerprints.add(new Fingerprint(FingerprintType.OTR, value));
}
if (key.startsWith(OMEMO_URI_PARAM)) {
try {
int id = Integer.parseInt(key.substring(OMEMO_URI_PARAM.length()));
fingerprints.add(new Fingerprint(FingerprintType.OMEMO, value, id));
} catch (Exception e) {
//ignoring invalid device id
}
}
}
}
return fingerprints;
}
private String parseParameter(String key, String query) {
for (String pair : query == null ? new String[0] : query.split(";")) {
final String[] parts = pair.split("=", 2);
if (parts.length == 2 && key.equals(parts[0].toLowerCase(Locale.US))) {
private static List<Fingerprint> parseFingerprints(Map<String, String> parameters) {
ImmutableList.Builder<Fingerprint> builder = new ImmutableList.Builder<>();
for (Map.Entry<String, String> parameter : parameters.entrySet()) {
final String key = parameter.getKey();
final String value = parameter.getValue().toLowerCase(Locale.US);
if (key.startsWith(OMEMO_URI_PARAM)) {
try {
return URLDecoder.decode(parts[1], "UTF-8");
} catch (UnsupportedEncodingException e) {
return null;
final int id = Integer.parseInt(key.substring(OMEMO_URI_PARAM.length()));
builder.add(new Fingerprint(FingerprintType.OMEMO, value, id));
} catch (Exception e) {
//ignoring invalid device id
}
}
}
return null;
}
private boolean hasAction(String query, String action) {
for(String pair : query == null ? new String[0] : query.split(";")) {
final String[] parts = pair.split("=",2);
if (parts.length == 1 && parts[0].toLowerCase(Locale.US).startsWith(action)) {
return true;
}
}
return false;
return builder.build();
}
public boolean isAction(final String action) {
return this.action != null && this.action.equals(action);
return parameters.containsKey(action);
}
public Jid getJid() {
@ -201,11 +192,11 @@ public class XmppUri {
}
public String getBody() {
return body;
return parameters.get("body");
}
public String getName() {
return name;
return parameters.get("name");
}
public List<Fingerprint> getFingerprints() {
@ -221,10 +212,10 @@ public class XmppUri {
OTR
}
public static String getFingerprintUri(String base, List<XmppUri.Fingerprint> fingerprints, char seperator) {
public static String getFingerprintUri(String base, List<XmppUri.Fingerprint> fingerprints, char separator) {
StringBuilder builder = new StringBuilder(base);
builder.append('?');
for(int i = 0; i < fingerprints.size(); ++i) {
for (int i = 0; i < fingerprints.size(); ++i) {
XmppUri.FingerprintType type = fingerprints.get(i).type;
if (type == XmppUri.FingerprintType.OMEMO) {
builder.append(XmppUri.OMEMO_URI_PARAM);
@ -234,8 +225,8 @@ public class XmppUri {
}
builder.append('=');
builder.append(fingerprints.get(i).fingerprint);
if (i != fingerprints.size() -1) {
builder.append(seperator);
if (i != fingerprints.size() - 1) {
builder.append(separator);
}
}
return builder.toString();
@ -256,9 +247,10 @@ public class XmppUri {
this.deviceId = deviceId;
}
@NotNull
@Override
public String toString() {
return type.toString() + ": " + fingerprint + (deviceId != 0 ? " " + String.valueOf(deviceId) : "");
return type.toString() + ": " + fingerprint + (deviceId != 0 ? " " + deviceId : "");
}
}