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Code Issues Releases Wiki Activity

Made the minor modifications to support CRAM-MD5 authentication

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in POP3 accounts.
This commit is contained in:
Will Hawkins 2011-04-06 11:42:37 -04:00
parent 467b623903
commit d881832eca
2 changed files with 73 additions and 11 deletions
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7
src/com/fsck/k9/activity/setup/AccountSetupIncoming.java
View File

@ -234,8 +234,6 @@ public class AccountSetupIncoming extends K9Activity implements OnClickListener
findViewById(R.id.webdav_mailbox_alias_section).setVisibility(View.GONE);
findViewById(R.id.webdav_owa_path_section).setVisibility(View.GONE);
findViewById(R.id.webdav_auth_path_section).setVisibility(View.GONE);
findViewById(R.id.account_auth_type_label).setVisibility(View.GONE);
findViewById(R.id.account_auth_type).setVisibility(View.GONE);
findViewById(R.id.compression_section).setVisibility(View.GONE);
findViewById(R.id.compression_label).setVisibility(View.GONE);
mAccount.setDeletePolicy(Account.DELETE_POLICY_NEVER);
@ -408,9 +406,14 @@ public class AccountSetupIncoming extends K9Activity implements OnClickListener
if (mAccountSchemes[securityType].startsWith("imap")) {
String authType = ((SpinnerOption)mAuthTypeView.getSelectedItem()).label;
userInfo = authType + ":" + userEnc + ":" + passwordEnc;
} else {
String authType = ((SpinnerOption)mAuthTypeView.getSelectedItem()).label;
if (!authType.equalsIgnoreCase("plain")) {
userInfo = authType + ":" + userEnc + ":" + passwordEnc;
} else {
userInfo = userEnc + ":" + passwordEnc;
}
}
URI uri = new URI(
mAccountSchemes[securityType],
userInfo,

65
src/com/fsck/k9/mail/store/Pop3Store.java
View File

@ -9,6 +9,8 @@ import com.fsck.k9.controller.MessageRetrievalListener;
import com.fsck.k9.helper.Utility;
import com.fsck.k9.mail.*;
import com.fsck.k9.mail.Folder.OpenMode;
import com.fsck.k9.mail.filter.Base64;
import com.fsck.k9.mail.filter.Hex;
import com.fsck.k9.mail.internet.MimeMessage;
import javax.net.ssl.SSLContext;
@ -17,6 +19,8 @@ import javax.net.ssl.TrustManager;
import java.io.*;
import java.net.*;
import java.security.GeneralSecurityException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Date;
@ -38,6 +42,7 @@ public class Pop3Store extends Store {
private int mPort;
private String mUsername;
private String mPassword;
private boolean useCramMd5;
private int mConnectionSecurity;
private HashMap<String, Folder> mFolders = new HashMap<String, Folder>();
private Pop3Capabilities mCapabilities;
@ -85,12 +90,20 @@ public class Pop3Store extends Store {
mPort = uri.getPort();
}
useCramMd5 = false;
if (uri.getUserInfo() != null) {
try {
int userIndex = 0, passwordIndex = 1;
String[] userInfoParts = uri.getUserInfo().split(":");
mUsername = URLDecoder.decode(userInfoParts[0], "UTF-8");
if (userInfoParts.length > 1) {
mPassword = URLDecoder.decode(userInfoParts[1], "UTF-8");
if (userInfoParts.length > 2)
{
userIndex++;
passwordIndex++;
useCramMd5 = true;
}
mUsername = URLDecoder.decode(userInfoParts[userIndex], "UTF-8");
if (userInfoParts.length > passwordIndex) {
mPassword = URLDecoder.decode(userInfoParts[passwordIndex], "UTF-8");
}
} catch (UnsupportedEncodingException enc) {
// This shouldn't happen since the encoding is hardcoded to UTF-8
@ -215,12 +228,58 @@ public class Pop3Store extends Store {
}
}
if (useCramMd5)
{
try {
String nonce64, plainCRAM, b64CRAM;
MessageDigest md;
byte[] ipad = new byte[64];
byte[] opad = new byte[64];
byte[] nonce, secretBytes, firstPass, result;
nonce64 = executeSimpleCommand("AUTH CRAM-MD5").replace("+ ", "");
nonce = Base64.decodeBase64(nonce64.getBytes("US-ASCII"));
secretBytes = mPassword.getBytes("US-ASCII");
try {
md = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException nsae) {
throw new AuthenticationFailedException("MD5 Not Available.");
}
if (secretBytes.length > 64) {
secretBytes = md.digest(secretBytes);
}
System.arraycopy(secretBytes, 0, ipad, 0, secretBytes.length);
System.arraycopy(secretBytes, 0, opad, 0, secretBytes.length);
for (int i = 0; i < ipad.length; i++) ipad[i] ^= 0x36;
for (int i = 0; i < opad.length; i++) opad[i] ^= 0x5c;
md.update(ipad);
firstPass = md.digest(nonce);
md.update(opad);
result = md.digest(firstPass);
plainCRAM = mUsername + " " + new String(Hex.encodeHex(result));
b64CRAM = new String(Base64.encodeBase64(plainCRAM.getBytes("US-ASCII")), "US-ASCII");
executeSimpleCommand(b64CRAM);
} catch (MessagingException me) {
throw new AuthenticationFailedException(null, me);
}
}
else
{
try {
executeSimpleCommand("USER " + mUsername);
executeSimpleCommand("PASS " + mPassword, true);
} catch (MessagingException me) {
throw new AuthenticationFailedException(null, me);
}
}
mCapabilities = getCapabilities();
} catch (SSLException e) {