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-rw-r--r--src/main/java/eu/siacs/conversations/crypto/sasl/DigestMd5.java72
-rw-r--r--src/main/java/eu/siacs/conversations/crypto/sasl/Plain.java25
-rw-r--r--src/main/java/eu/siacs/conversations/crypto/sasl/SaslMechanism.java27
-rw-r--r--src/main/java/eu/siacs/conversations/entities/MucOptions.java65
-rw-r--r--src/main/java/eu/siacs/conversations/entities/Presences.java40
-rw-r--r--src/main/java/eu/siacs/conversations/utils/CryptoHelper.java60
-rw-r--r--src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java49
-rw-r--r--src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java5
8 files changed, 209 insertions, 134 deletions
diff --git a/src/main/java/eu/siacs/conversations/crypto/sasl/DigestMd5.java b/src/main/java/eu/siacs/conversations/crypto/sasl/DigestMd5.java
new file mode 100644
index 00000000..f81bd0c5
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/crypto/sasl/DigestMd5.java
@@ -0,0 +1,72 @@
+package eu.siacs.conversations.crypto.sasl;
+
+import android.util.Base64;
+
+import java.math.BigInteger;
+import java.nio.charset.Charset;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.utils.CryptoHelper;
+import eu.siacs.conversations.xml.TagWriter;
+
+public class DigestMd5 extends SaslMechanism {
+ public DigestMd5(final TagWriter tagWriter, final Account account, final SecureRandom rng) {
+ super(tagWriter, account, rng);
+ }
+
+ @Override
+ public String getMechanism() {
+ return "DIGEST-MD5";
+ }
+
+ @Override
+ public String getResponse(final String challenge) {
+ final String encodedResponse;
+ try {
+ final String[] challengeParts = new String(Base64.decode(challenge,
+ Base64.DEFAULT)).split(",");
+ String nonce = "";
+ for (int i = 0; i < challengeParts.length; ++i) {
+ String[] parts = challengeParts[i].split("=");
+ if (parts[0].equals("nonce")) {
+ nonce = parts[1].replace("\"", "");
+ } else if (parts[0].equals("rspauth")) {
+ return "";
+ }
+ }
+ final String digestUri = "xmpp/" + account.getServer();
+ final String nonceCount = "00000001";
+ final String x = account.getUsername() + ":" + account.getServer() + ":"
+ + account.getPassword();
+ final MessageDigest md = MessageDigest.getInstance("MD5");
+ final byte[] y = md.digest(x.getBytes(Charset.defaultCharset()));
+ final String cNonce = new BigInteger(100, rng).toString(32);
+ final byte[] a1 = CryptoHelper.concatenateByteArrays(y,
+ (":" + nonce + ":" + cNonce).getBytes(Charset
+ .defaultCharset()));
+ final String a2 = "AUTHENTICATE:" + digestUri;
+ final String ha1 = CryptoHelper.bytesToHex(md.digest(a1));
+ final String ha2 = CryptoHelper.bytesToHex(md.digest(a2.getBytes(Charset
+ .defaultCharset())));
+ final String kd = ha1 + ":" + nonce + ":" + nonceCount + ":" + cNonce
+ + ":auth:" + ha2;
+ final String response = CryptoHelper.bytesToHex(md.digest(kd.getBytes(Charset
+ .defaultCharset())));
+ final String saslString = "username=\"" + account.getUsername()
+ + "\",realm=\"" + account.getServer() + "\",nonce=\""
+ + nonce + "\",cnonce=\"" + cNonce + "\",nc=" + nonceCount
+ + ",qop=auth,digest-uri=\"" + digestUri + "\",response="
+ + response + ",charset=utf-8";
+ encodedResponse = Base64.encodeToString(
+ saslString.getBytes(Charset.defaultCharset()),
+ Base64.NO_WRAP);
+ } catch (final NoSuchAlgorithmException e) {
+ return "";
+ }
+
+ return encodedResponse;
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/crypto/sasl/Plain.java b/src/main/java/eu/siacs/conversations/crypto/sasl/Plain.java
new file mode 100644
index 00000000..e7760bbc
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/crypto/sasl/Plain.java
@@ -0,0 +1,25 @@
+package eu.siacs.conversations.crypto.sasl;
+
+import android.util.Base64;
+
+import java.nio.charset.Charset;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.xml.TagWriter;
+
+public class Plain extends SaslMechanism {
+ public Plain(final TagWriter tagWriter, final Account account) {
+ super(tagWriter, account, null);
+ }
+
+ @Override
+ public String getMechanism() {
+ return "PLAIN";
+ }
+
+ @Override
+ public String getStartAuth() {
+ final String sasl = '\u0000' + account.getUsername() + '\u0000' + account.getPassword();
+ return Base64.encodeToString(sasl.getBytes(Charset.defaultCharset()), Base64.NO_WRAP);
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/crypto/sasl/SaslMechanism.java b/src/main/java/eu/siacs/conversations/crypto/sasl/SaslMechanism.java
new file mode 100644
index 00000000..5eddd5c2
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/crypto/sasl/SaslMechanism.java
@@ -0,0 +1,27 @@
+package eu.siacs.conversations.crypto.sasl;
+
+import java.security.SecureRandom;
+
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.xml.TagWriter;
+
+public abstract class SaslMechanism {
+
+ final protected TagWriter tagWriter;
+ final protected Account account;
+ final protected SecureRandom rng;
+
+ public SaslMechanism(final TagWriter tagWriter, final Account account, final SecureRandom rng) {
+ this.tagWriter = tagWriter;
+ this.account = account;
+ this.rng = rng;
+ }
+
+ public abstract String getMechanism();
+ public String getStartAuth() {
+ return "";
+ }
+ public String getResponse(final String challenge) {
+ return "";
+ }
+}
diff --git a/src/main/java/eu/siacs/conversations/entities/MucOptions.java b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
index e25c6b89..6eb1d43c 100644
--- a/src/main/java/eu/siacs/conversations/entities/MucOptions.java
+++ b/src/main/java/eu/siacs/conversations/entities/MucOptions.java
@@ -158,39 +158,42 @@ public class MucOptions {
String type = packet.getAttribute("type");
if (type == null) {
User user = new User();
- Element item = packet.findChild("x",
- "http://jabber.org/protocol/muc#user")
- .findChild("item");
- user.setName(name);
- user.setAffiliation(item.getAttribute("affiliation"));
- user.setRole(item.getAttribute("role"));
- user.setJid(item.getAttribute("jid"));
- user.setName(name);
- if (name.equals(this.joinnick)) {
- this.isOnline = true;
- this.error = ERROR_NO_ERROR;
- self = user;
- if (aboutToRename) {
- if (renameListener != null) {
- renameListener.onRename(true);
- }
- aboutToRename = false;
- }
- } else {
- addUser(user);
- }
- if (pgp != null) {
- Element x = packet.findChild("x", "jabber:x:signed");
- if (x != null) {
- Element status = packet.findChild("status");
- String msg;
- if (status != null) {
- msg = status.getContent();
+ Element x = packet.findChild("x","http://jabber.org/protocol/muc#user");
+ if (x != null) {
+ Element item = x.findChild("item");
+ if (item != null) {
+ user.setName(name);
+ user.setAffiliation(item.getAttribute("affiliation"));
+ user.setRole(item.getAttribute("role"));
+ user.setJid(item.getAttribute("jid"));
+ user.setName(name);
+ if (name.equals(this.joinnick)) {
+ this.isOnline = true;
+ this.error = ERROR_NO_ERROR;
+ self = user;
+ if (aboutToRename) {
+ if (renameListener != null) {
+ renameListener.onRename(true);
+ }
+ aboutToRename = false;
+ }
} else {
- msg = "";
+ addUser(user);
+ }
+ if (pgp != null) {
+ Element signed = packet.findChild("x", "jabber:x:signed");
+ if (signed != null) {
+ Element status = packet.findChild("status");
+ String msg;
+ if (status != null) {
+ msg = status.getContent();
+ } else {
+ msg = "";
+ }
+ user.setPgpKeyId(pgp.fetchKeyId(account, msg,
+ signed.getContent()));
+ }
}
- user.setPgpKeyId(pgp.fetchKeyId(account, msg,
- x.getContent()));
}
}
} else if (type.equals("unavailable") && name.equals(this.joinnick)) {
diff --git a/src/main/java/eu/siacs/conversations/entities/Presences.java b/src/main/java/eu/siacs/conversations/entities/Presences.java
index b5899847..bccf3117 100644
--- a/src/main/java/eu/siacs/conversations/entities/Presences.java
+++ b/src/main/java/eu/siacs/conversations/entities/Presences.java
@@ -22,24 +22,32 @@ public class Presences {
}
public void updatePresence(String resource, int status) {
- this.presences.put(resource, status);
+ synchronized (this.presences) {
+ this.presences.put(resource, status);
+ }
}
public void removePresence(String resource) {
- this.presences.remove(resource);
+ synchronized (this.presences) {
+ this.presences.remove(resource);
+ }
}
public void clearPresences() {
- this.presences.clear();
+ synchronized (this.presences) {
+ this.presences.clear();
+ }
}
public int getMostAvailableStatus() {
int status = OFFLINE;
- Iterator<Entry<String, Integer>> it = presences.entrySet().iterator();
- while (it.hasNext()) {
- Entry<String, Integer> entry = it.next();
- if (entry.getValue() < status)
- status = entry.getValue();
+ synchronized (this.presences) {
+ Iterator<Entry<String, Integer>> it = presences.entrySet().iterator();
+ while (it.hasNext()) {
+ Entry<String, Integer> entry = it.next();
+ if (entry.getValue() < status)
+ status = entry.getValue();
+ }
}
return status;
}
@@ -61,16 +69,22 @@ public class Presences {
}
public int size() {
- return presences.size();
+ synchronized (this.presences) {
+ return presences.size();
+ }
}
public String[] asStringArray() {
- final String[] presencesArray = new String[presences.size()];
- presences.keySet().toArray(presencesArray);
- return presencesArray;
+ synchronized (this.presences) {
+ final String[] presencesArray = new String[presences.size()];
+ presences.keySet().toArray(presencesArray);
+ return presencesArray;
+ }
}
public boolean has(String presence) {
- return presences.containsKey(presence);
+ synchronized (this.presences) {
+ return presences.containsKey(presence);
+ }
}
}
diff --git a/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java b/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java
index 47595c6e..11042d07 100644
--- a/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java
+++ b/src/main/java/eu/siacs/conversations/utils/CryptoHelper.java
@@ -1,14 +1,7 @@
package eu.siacs.conversations.utils;
-import java.math.BigInteger;
-import java.nio.charset.Charset;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
-import eu.siacs.conversations.entities.Account;
-import android.util.Base64;
-
public class CryptoHelper {
public static final String FILETRANSFER = "?FILETRANSFERv1:";
final protected static char[] hexArray = "0123456789abcdef".toCharArray();
@@ -36,64 +29,13 @@ public class CryptoHelper {
return array;
}
- public static String saslPlain(String username, String password) {
- String sasl = '\u0000' + username + '\u0000' + password;
- return Base64.encodeToString(sasl.getBytes(Charset.defaultCharset()),
- Base64.NO_WRAP);
- }
-
- private static byte[] concatenateByteArrays(byte[] a, byte[] b) {
+ public static byte[] concatenateByteArrays(byte[] a, byte[] b) {
byte[] result = new byte[a.length + b.length];
System.arraycopy(a, 0, result, 0, a.length);
System.arraycopy(b, 0, result, a.length, b.length);
return result;
}
- public static String saslDigestMd5(Account account, String challenge,
- SecureRandom random) {
- try {
- String[] challengeParts = new String(Base64.decode(challenge,
- Base64.DEFAULT)).split(",");
- String nonce = "";
- for (int i = 0; i < challengeParts.length; ++i) {
- String[] parts = challengeParts[i].split("=");
- if (parts[0].equals("nonce")) {
- nonce = parts[1].replace("\"", "");
- } else if (parts[0].equals("rspauth")) {
- return null;
- }
- }
- String digestUri = "xmpp/" + account.getServer();
- String nonceCount = "00000001";
- String x = account.getUsername() + ":" + account.getServer() + ":"
- + account.getPassword();
- MessageDigest md = MessageDigest.getInstance("MD5");
- byte[] y = md.digest(x.getBytes(Charset.defaultCharset()));
- String cNonce = new BigInteger(100, random).toString(32);
- byte[] a1 = concatenateByteArrays(y,
- (":" + nonce + ":" + cNonce).getBytes(Charset
- .defaultCharset()));
- String a2 = "AUTHENTICATE:" + digestUri;
- String ha1 = bytesToHex(md.digest(a1));
- String ha2 = bytesToHex(md.digest(a2.getBytes(Charset
- .defaultCharset())));
- String kd = ha1 + ":" + nonce + ":" + nonceCount + ":" + cNonce
- + ":auth:" + ha2;
- String response = bytesToHex(md.digest(kd.getBytes(Charset
- .defaultCharset())));
- String saslString = "username=\"" + account.getUsername()
- + "\",realm=\"" + account.getServer() + "\",nonce=\""
- + nonce + "\",cnonce=\"" + cNonce + "\",nc=" + nonceCount
- + ",qop=auth,digest-uri=\"" + digestUri + "\",response="
- + response + ",charset=utf-8";
- return Base64.encodeToString(
- saslString.getBytes(Charset.defaultCharset()),
- Base64.NO_WRAP);
- } catch (NoSuchAlgorithmException e) {
- return null;
- }
- }
-
public static String randomMucName(SecureRandom random) {
return randomWord(3, random) + "." + randomWord(7, random);
}
diff --git a/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java b/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
index 4bd3668a..26854aa3 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/XmppConnection.java
@@ -39,9 +39,11 @@ import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.X509TrustManager;
import eu.siacs.conversations.Config;
+import eu.siacs.conversations.crypto.sasl.DigestMd5;
+import eu.siacs.conversations.crypto.sasl.Plain;
+import eu.siacs.conversations.crypto.sasl.SaslMechanism;
import eu.siacs.conversations.entities.Account;
import eu.siacs.conversations.services.XmppConnectionService;
-import eu.siacs.conversations.utils.CryptoHelper;
import eu.siacs.conversations.utils.DNSHelper;
import eu.siacs.conversations.utils.zlib.ZLibInputStream;
import eu.siacs.conversations.utils.zlib.ZLibOutputStream;
@@ -104,6 +106,8 @@ public class XmppConnection implements Runnable {
private OnMessageAcknowledged acknowledgedListener = null;
private XmppConnectionService mXmppConnectionService = null;
+ private SaslMechanism saslMechanism;
+
public XmppConnection(Account account, XmppConnectionService service) {
this.account = account;
this.wakeLock = service.getPowerManager().newWakeLock(
@@ -287,12 +291,11 @@ public class XmppConnection implements Runnable {
tagReader.readElement(nextTag);
changeStatus(Account.STATUS_UNAUTHORIZED);
} else if (nextTag.isStart("challenge")) {
- String challange = tagReader.readElement(nextTag).getContent();
- Element response = new Element("response");
+ final String challenge = tagReader.readElement(nextTag).getContent();
+ final Element response = new Element("response");
response.setAttribute("xmlns",
"urn:ietf:params:xml:ns:xmpp-sasl");
- response.setContent(CryptoHelper.saslDigestMd5(account,
- challange, mXmppConnectionService.getRNG()));
+ response.setContent(saslMechanism.getResponse(challenge));
tagWriter.writeElement(response);
} else if (nextTag.isStart("enabled")) {
Element enabled = tagReader.readElement(nextTag);
@@ -592,23 +595,6 @@ public class XmppConnection implements Runnable {
}
}
- private void sendSaslAuthPlain() throws IOException {
- String saslString = CryptoHelper.saslPlain(account.getUsername(),
- account.getPassword());
- Element auth = new Element("auth");
- auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
- auth.setAttribute("mechanism", "PLAIN");
- auth.setContent(saslString);
- tagWriter.writeElement(auth);
- }
-
- private void sendSaslAuthDigestMd5() throws IOException {
- Element auth = new Element("auth");
- auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
- auth.setAttribute("mechanism", "DIGEST-MD5");
- tagWriter.writeElement(auth);
- }
-
private void processStreamFeatures(Tag currentTag)
throws XmlPullParserException, IOException {
this.streamFeatures = tagReader.readElement(currentTag);
@@ -626,14 +612,19 @@ public class XmppConnection implements Runnable {
disconnect(true);
} else if (this.streamFeatures.hasChild("mechanisms")
&& shouldAuthenticate && usingEncryption) {
- List<String> mechanisms = extractMechanisms(streamFeatures
+ final List<String> mechanisms = extractMechanisms(streamFeatures
.findChild("mechanisms"));
- if (mechanisms.contains("PLAIN")) {
- sendSaslAuthPlain();
- } else if (mechanisms.contains("DIGEST-MD5")) {
- sendSaslAuthDigestMd5();
- }
- } else if (this.streamFeatures.hasChild("sm", "urn:xmpp:sm:"
+ final Element auth = new Element("auth");
+ auth.setAttribute("xmlns", "urn:ietf:params:xml:ns:xmpp-sasl");
+ if (mechanisms.contains("DIGEST-MD5")) {
+ saslMechanism = new DigestMd5(tagWriter, account, mXmppConnectionService.getRNG());
+ } else if (mechanisms.contains("PLAIN")) {
+ saslMechanism = new Plain(tagWriter, account);
+ auth.setContent(((Plain)saslMechanism).getStartAuth());
+ }
+ auth.setAttribute("mechanism", saslMechanism.getMechanism());
+ tagWriter.writeElement(auth);
+ } else if (this.streamFeatures.hasChild("sm", "urn:xmpp:sm:"
+ smVersion)
&& streamId != null) {
ResumePacket resume = new ResumePacket(this.streamId,
diff --git a/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java b/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java
index 3ad3015d..d8d8e375 100644
--- a/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java
+++ b/src/main/java/eu/siacs/conversations/xmpp/jid/Jid.java
@@ -108,11 +108,12 @@ public final class Jid {
if (resourcepart.isEmpty() || resourcepart.length() > 1023) {
throw new InvalidJidException(InvalidJidException.INVALID_PART_LENGTH);
}
- dp = jid.substring(domainpartStart, slashLoc);
+ dp = IDN.toUnicode(jid.substring(domainpartStart, slashLoc), IDN.USE_STD3_ASCII_RULES);
finaljid = finaljid + dp + "/" + rp;
} else {
resourcepart = "";
- dp = jid.substring(domainpartStart, jid.length());
+ dp = IDN.toUnicode(jid.substring(domainpartStart, jid.length()),
+ IDN.USE_STD3_ASCII_RULES);
finaljid = finaljid + dp;
}