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Copy pathSMTP.java
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executable file
·1076 lines (1012 loc) · 36.2 KB
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package javaforce;
import java.io.*;
import java.net.*;
import java.util.*;
import java.security.*;
import javax.net.ssl.*;
import javax.crypto.*;
import javax.crypto.spec.*;
/**
* SMTP client class.
*/
public class SMTP {
/** Email Attachment */
public static class Attachment {
/** attachment filename (no path) */
public String name;
/** attachment content */
public byte[] data;
public static Attachment readFile(String fn) {
try {
Attachment attach = new Attachment();
FileInputStream fis = new FileInputStream(fn);
attach.data = fis.readAllBytes();
fis.close();
fn = fn.replaceAll("\\\\", "/");
int idx = fn.lastIndexOf('/');
if (idx == -1) {
attach.name = fn;
} else {
attach.name = fn.substring(idx + 1);
}
return attach;
} catch (Exception e) {
JFLog.log(log, e);
return null;
}
}
}
private Socket s;
private InputStream is;
private OutputStream os;
private BufferedReader br;
private String host;
private ArrayList<String> headers = new ArrayList<String>();
public static boolean debug = false;
public static boolean debug_log = false;
public static int log;
/**
* Holds the repsonse strings from the last executed command
*/
public String response[];
public static final int PORT = 25; //default port
public static final int TLSPORT = 587; //default SSL port (explicit)
public static final int SSLPORT = 465; //default SSL port (implicit)
/** Connects to an insecure SMTP server.
* @param host = SMTP server
* @param port = port to connect (default = 25 or 587)
*/
public boolean connect(String host, int port) throws Exception {
if (debug) {
JFLog.log("connect(" + host + ":" + port + ")");
}
s = new Socket(host, port);
is = s.getInputStream();
br = new BufferedReader(new InputStreamReader(is));
os = s.getOutputStream();
this.host = host;
getResponse();
if (response[response.length - 1].startsWith("220")) {
return true;
}
disconnect(); //not valid SMTP site
return false;
}
/** Connects to a secure SMTP server.
* @param host = SMTP server
* @param port = port to connect (default = 465)
*/
public boolean connectSSL(String host, int port) throws Exception {
if (debug) {
JFLog.log("connectSSL(" + host + ":" + port + ")");
}
s = JF.connectSSL(host, port, KeyMgmt.getDefaultClient());
is = s.getInputStream();
br = new BufferedReader(new InputStreamReader(is));
os = s.getOutputStream();
this.host = host;
getResponse();
if (response[response.length - 1].startsWith("220")) {
return true;
}
disconnect(); //not valid SMTP site
return false;
}
/** Disconnect from SMTP Server. */
public void disconnect() throws Exception {
if (s != null) {
s.close();
}
s = null;
is = null;
os = null;
headers.clear();
}
/** Set debug logging state. */
public static void setDebug(boolean state) {
debug_log = state;
}
public static void setLog(int id) {
log = id;
}
/** Sends HELO / EHLO command. */
public boolean login() throws Exception {
cmd("EHLO " + host);
getResponse();
if (!response[response.length - 1].startsWith("250")) {
return false;
}
return true;
}
public static final String AUTH_PLAIN = "PLAIN";
public static final String AUTH_LOGIN = "LOGIN";
public static final String AUTH_NTLM = "NTLM";
/** Authenticates with SMTP Server.
* @param user = username
* @param pass = password
* @param type = auth type (AUTH_LOGIN or AUTH_NTML)
*/
public boolean auth(String user, String pass, String type) throws Exception {
switch (type) {
case AUTH_PLAIN: cmd("AUTH PLAIN"); break;
case AUTH_LOGIN: cmd("AUTH LOGIN"); break;
case AUTH_NTLM: cmd("AUTH NTLM"); break;
default: JFLog.log(log, "SMTP:Unknown auth type:" + type);
}
getResponse();
if (response[response.length - 1].startsWith("504")) {
if (debug_log) {
JFLog.log(log, "AUTH " + type + " not supported!");
}
return false;
}
if (!response[response.length - 1].startsWith("334")) {
return false;
}
cmd(encodeFirst(user, pass, type, response[response.length - 1].substring(4)));
getResponse();
if (response[response.length - 1].startsWith("235")) {
return true;
}
if (!response[response.length - 1].startsWith("334")) {
return false;
}
cmd(encodeSecond(user, pass, type, response[response.length - 1].substring(4)));
getResponse();
if (!response[response.length - 1].startsWith("235")) {
return false;
}
return true;
}
/** Authenticates with SMTP Server using AUTH_LOGIN type.
* @param user = username
* @param pass = password
*/
public boolean auth(String user, String pass) throws Exception {
return auth(user, pass, AUTH_LOGIN);
}
/** Send QUIT command. */
public void logout() throws Exception {
cmd("quit");
getResponse(); //should be "221" but ignored
}
/** Send any command to server. */
public void cmd(String cmd) throws Exception {
if ((s == null) || (s.isClosed())) {
throw new Exception("not connected");
}
if (debug_log) {
if (cmd.startsWith("pass ")) {
JFLog.log(log, "pass ****");
} else {
JFLog.log(log, cmd);
}
}
cmd += "\r\n";
os.write(cmd.getBytes());
}
/** Secures connection using STARTTLS command. */
public void starttls() throws Exception {
cmd("STARTTLS");
getResponse();
if (!response[response.length - 1].startsWith("220")) {
throw new Exception("STARTTLS failed!");
}
s = JF.connectSSL(s, KeyMgmt.getDefaultClient());
is = s.getInputStream();
os = s.getOutputStream();
}
/** Sets from email for message.
* @param email = from email address
*/
public void from(String email) throws Exception {
cmd("MAIL FROM:<" + email + ">");
getResponse();
headers.add("From: <" + email + ">\r\n");
}
/** Sets to email for message.
* @param email = to email address
*/
public void to(String email) throws Exception {
cmd("RCPT TO:<" + email + ">");
getResponse();
headers.add("To: <" + email + ">\r\n");
}
/** Sets cc email for message.
* @param email = cc email address
*/
public void cc(String email) throws Exception {
cmd("RCPT TO:<" + email + ">");
getResponse();
headers.add("To: <" + email + ">\r\n");
}
/** Sets bcc email for message.
* @param email = bcc email address
*/
public void bcc(String email) throws Exception {
cmd("RCPT TO:<" + email + ">");
getResponse();
//no headers for bcc
}
/** Sends a simple text message with headers included.
*
* The terminating \r\n.\r\n will be added.
*
* @param msg = email headers + blank line + message body
*/
/*
sample msg:
From: "First Last" <[email protected]>
To: "First Last" <[email protected]>
Cc: "First Last" <[email protected]>
Date: Tue, 15 Jan 2008 16:02:43 -0500
Subject: Subject line
Hello Bob,
blah blah blah
*/
public boolean data(String msg) throws Exception {
cmd("DATA");
getResponse();
if (!response[response.length - 1].startsWith("354")) {
return false;
}
os.write(msg.getBytes());
os.write("\r\n.\r\n".getBytes());
getResponse();
if (!response[response.length - 1].startsWith("250")) {
return false;
}
return true;
}
/** Sets subject header for email.
* @param subject = subject of email
* Can only be used with enhanced data() method.
*/
public void subject(String subject) {
headers.add("Subject: " + subject + "\r\n");
}
/** Sets content type header of body.
* @param type = "text/plain" or "text/html" (default is unspecified)
* Can only be used with enhanced data() method.
*/
public void setContentType(String type) {
headers.add("Content-Type: " + type + "\r\n");
}
/** Add date header to email.
* Can only be used with enhanced data() method.
*/
public void addDate(Calendar date) {
headers.add("Date: " + date.toString() + "\r\n");
}
/** Add custom header to email.
* Can only be used with enhanced data() method.
*/
public void addHeader(String name, String value) {
headers.add(name + ": " + value + "\r\n");
}
//boundaries max 70 chars
private static final String boundary_mixed = "javaforce_smtp__boundary_mixed";
private static final String boundary_alt = "javaforce_smtp__boundary_alt";
/** Sends an enhanced message in text and/or html formats with headers and optional attachments.
* Headers are automatically generated and MUST NOT be included in body.
* One or both of body_text, body_html MUST be supplied.
* @param body_text = body of message in TEXT format
* @param body_html = body of message in HTML format
* @param attachments = files to attach
*/
public boolean data(String body_text, String body_html, Attachment[] attachments) throws Exception {
StringBuilder full = new StringBuilder();
boolean has_attachments = attachments != null && attachments.length > 0;
//headers
for(String header : headers) {
full.append(header);
}
full.append("MIME-Version: 1.0\r\n");
full.append("Content-Type: multipart/mixed; boundary=" + boundary_mixed + "\r\n");
//blank line (end of headers)
full.append("\r\n");
full.append("This is a multipart MIME message"); //for older clients?
full.append("\r\n");
full.append("--" + boundary_mixed + "\r\n");
full.append("Content-Type: multipart/alternative; boundary=" + boundary_alt + "\r\n");
full.append("\r\n");
//no content in alt section
if (body_text != null) {
full.append("--" + boundary_alt + "\r\n");
full.append("Content-Type: text/plain\r\n");
full.append("Content-Length: " + body_text.length() + "\r\n");
full.append("\r\n");
full.append(body_text);
full.append("\r\n");
}
if (body_html != null) {
full.append("--" + boundary_alt + "\r\n");
full.append("Content-Type: text/html\r\n");
full.append("Content-Length: " + body_html.length() + "\r\n");
full.append("\r\n");
full.append(body_html);
full.append("\r\n");
}
full.append("--" + boundary_alt + "--\r\n"); //end of alt section
full.append("\r\n");
if (has_attachments) {
//boundary
for(Attachment attach : attachments) {
full.append("--" + boundary_mixed + "\r\n");
//headers
full.append("Content-Type: application/octet-stream\r\n");
full.append("Content-Transfer-Encoding: base64\r\n");
full.append("Content-Disposition: attachment; filename=\"" + fileName(attach.name) + "\";\r\n");
full.append("Content-Length: " + attach.data.length + "\r\n");
//blank line
full.append("\r\n");
Base64 encoder = new Base64();
byte[] b64 = encoder.encode(attach.data);
String s64 = new String(b64, "UTF-8");
//content
full.append(s64);
full.append("\r\n");
}
}
full.append("--" + boundary_mixed + "--\r\n"); //end of mixed section
cmd("DATA");
getResponse();
if (!response[response.length - 1].startsWith("354")) {
return false;
}
os.write(full.toString().getBytes());
os.write("\r\n.\r\n".getBytes());
getResponse();
if (!response[response.length - 1].startsWith("250")) {
return false;
}
return true;
}
private void getResponse() throws Exception {
ArrayList<String> tmp = new ArrayList<String>();
String str;
while (!s.isClosed()) {
str = br.readLine();
tmp.add(str);
if (str.charAt(3) == ' ') {
break;
}
}
int size = tmp.size();
response = new String[size];
for (int a = 0; a < size; a++) {
response[a] = tmp.get(a);
if (debug) {
System.out.println(response[a]);
}
}
}
/** Returns last line of response from last command sent. */
public String getLastResponse() {
if (response == null) return null;
return response[response.length - 1];
}
private static String extractEmail(String in) {
int i1 = in.indexOf('<');
int i2 = in.indexOf('>');
return in.substring(i1+1, i2);
}
private static String fileName(String full) {
int idx;
idx = full.lastIndexOf('/');
if (idx != -1) return full.substring(idx+1);
idx = full.lastIndexOf('\\');
if (idx != -1) return full.substring(idx+1);
return full;
}
private static void usage() {
System.out.println("Usage:SMTP --server=host[:port] --text=file --html=file --from=email --to=email --cc=email --bcc=email --subject=desc [--user=user] [--pass=pass] [--auth=type] [--file=filename]");
System.out.println(" to,cc,bcc,file options can be repeated");
System.out.println(" type=LOGIN(default) NTLM");
System.exit(1);
}
/** CLI */
public static void main(String[] args) {
if (args.length < 5) {
usage();
return;
}
SMTP smtp = new SMTP();
try {
smtp.setDebug(true);
smtp.debug = true;
int port = 25;
String host = null;
String body_text_file = null;
String body_html_file = null;
String from = null;
ArrayList<String> tos = new ArrayList<String>();
ArrayList<String> ccs = new ArrayList<String>();
ArrayList<String> bccs = new ArrayList<String>();
String subject = null;
String user = null;
String pass = null;
String auth = AUTH_LOGIN;
boolean starttls = false;
ArrayList<String> files = new ArrayList<String>();
for(String arg : args) {
if (!arg.startsWith("--")) continue;
arg = arg.substring(2);
int idx = arg.indexOf("=");
if (idx == -1) {
switch (arg) {
case "starttls": starttls = true; break;
}
continue;
}
String key = arg.substring(0, idx);
String value = arg.substring(idx + 1);
switch (key) {
case "server": host = value; break;
case "text": body_text_file = value; break;
case "html": body_html_file = value; break;
case "from": from = value; break;
case "to": tos.add(value); break;
case "cc": ccs.add(value); break;
case "bcc": bccs.add(value); break;
case "subject": subject = value; break;
case "user": user = value; break;
case "pass": pass = value; break;
case "debug": setDebug(true); break;
case "auth":
switch (value) {
case "PLAIN": auth = AUTH_PLAIN; break;
case "LOGIN": auth = AUTH_LOGIN; break;
case "NTLM": auth = AUTH_NTLM; break;
default: System.out.println("auth not supported:" + value); System.exit(1); break;
}
break;
case "file": files.add(value); break;
}
}
if (host == null) usage();
if (from == null) usage();
if (tos.size() == 0) usage();
if (body_text_file == null && body_html_file == null) usage();
int idx = host.indexOf(':');
if (idx != -1) {
port = JF.atoi(host.substring(idx+1));
host = host.substring(0, idx);
}
if (port == 25 || port == 587) {
smtp.connect(host, port);
} else {
//465
smtp.connectSSL(host, port);
}
smtp.login();
if (starttls) {
smtp.starttls();
}
if (user != null && pass != null) {
if (!smtp.auth(user, pass, auth)) {
throw new Exception("Login failed!");
}
}
smtp.from(from);
for(String to : tos) {
smtp.to(to);
}
for(String cc : ccs) {
smtp.cc(cc);
}
for(String bcc : bccs) {
smtp.bcc(bcc);
}
String body_text = null;
if (body_text_file != null) {
FileInputStream fis = new FileInputStream(body_text_file);
body_text = new String(JF.readAll(fis));
fis.close();
}
String body_html = null;
if (body_html_file != null) {
FileInputStream fis = new FileInputStream(body_html_file);
body_html = new String(JF.readAll(fis));
fis.close();
}
ArrayList<Attachment> attachments = new ArrayList<Attachment>();
for(String file : files) {
Attachment attach = new Attachment();
attach.name = fileName(file);
FileInputStream fis = new FileInputStream(file);
attach.data = JF.readAll(fis);
fis.close();
attachments.add(attach);
}
smtp.subject(subject);
smtp.data(body_text, body_html, attachments.toArray(new Attachment[0]));
System.out.println("Reply=" + smtp.getLastResponse());
smtp.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
//https://github.com/eclipse-ee4j/mail/blob/master/mail/src/main/java/com/sun/mail/auth/Ntlm.java
private static final int NTLMSSP_NEGOTIATE_UNICODE = 0x00000001;
private static final int NTLMSSP_NEGOTIATE_OEM = 0x00000002;
private static final int NTLMSSP_REQUEST_TARGET = 0x00000004;
private static final int NTLMSSP_NEGOTIATE_SIGN = 0x00000010;
private static final int NTLMSSP_NEGOTIATE_SEAL = 0x00000020;
private static final int NTLMSSP_NEGOTIATE_DATAGRAM = 0x00000040;
private static final int NTLMSSP_NEGOTIATE_LM_KEY = 0x00000080;
private static final int NTLMSSP_NEGOTIATE_NTLM = 0x00000200;
private static final int NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED = 0x00001000;
private static final int NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED = 0x00002000;
private static final int NTLMSSP_NEGOTIATE_ALWAYS_SIGN = 0x00008000;
private static final int NTLMSSP_TARGET_TYPE_DOMAIN = 0x00010000;
private static final int NTLMSSP_TARGET_TYPE_SERVER = 0x00020000;
private static final int NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY = 0x00080000;
private static final int NTLMSSP_NEGOTIATE_IDENTIFY = 0x00100000;
private static final int NTLMSSP_REQUEST_NON_NT_SESSION_KEY = 0x00400000;
private static final int NTLMSSP_NEGOTIATE_TARGET_INFO = 0x00800000;
private static final int NTLMSSP_NEGOTIATE_VERSION = 0x02000000;
private static final int NTLMSSP_NEGOTIATE_128 = 0x20000000;
private static final int NTLMSSP_NEGOTIATE_KEY_EXCH = 0x40000000;
private static final int NTLMSSP_NEGOTIATE_56 = 0x80000000;
private static final byte RESPONSERVERSION = 1;
private static final byte HIRESPONSERVERSION = 1;
private static final byte[] Z6 = new byte[] { 0, 0, 0, 0, 0, 0 };
private static final byte[] Z4 = new byte[] { 0, 0, 0, 0 };
private static byte[] NEGOTIATE_MESSAGE() {
//NEGOTIATE_MESSAGE
//https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-nlmp/b34032e5-3aae-4bc6-84c3-c6d80eadf7f2
String domain_str = System.getenv("USERDOMAIN");
if (domain_str == null) {
JFLog.log(log, "Error:USERDOMAIN==null");
return null;
}
byte domain[];
try {
domain = domain_str.getBytes("iso-8859-1");
} catch (Exception e) {
JFLog.log(log, e);
return null;
}
int domain_len = domain.length;
String workstation_str = System.getenv("COMPUTERNAME");
if (workstation_str == null) {
JFLog.log(log, "Error:COMPUTERNAME==null");
return null;
}
byte workstation[];
try {
workstation = workstation_str.getBytes("iso-8859-1");
} catch (Exception e) {
JFLog.log(log, e);
return null;
}
int workstation_len = workstation.length;
byte[] type1 = new byte[32 + domain_len + workstation_len];
int flags =
NTLMSSP_NEGOTIATE_UNICODE |
NTLMSSP_NEGOTIATE_OEM |
NTLMSSP_NEGOTIATE_NTLM |
NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED |
NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED |
NTLMSSP_NEGOTIATE_ALWAYS_SIGN |
NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY;
int off = 0;
LE.setString(type1, off, 7, "NTLMSSP"); //byte signature[8]
off += 8; //8
LE.setuint32(type1, off, 0x00000001); //int message_type
off += 4; //12
LE.setuint32(type1, off, flags); //int flags
off += 4; //16
//DomainName : short Len, short MaxLen, int Offset
LE.setuint16(type1, off, domain_len); //Len
off += 2; //18
LE.setuint16(type1, off, domain_len); //MaxLen (ignored)
off += 2; //20
LE.setuint32(type1, off, 32); //Offset
off += 4; //24
//WorkstationName : short Len, short MaxLen, int Offset
LE.setuint16(type1, off, workstation_len); //Len
off += 2; //26
LE.setuint16(type1, off, workstation_len); //MaxLen (ignored)
off += 2; //28
LE.setuint32(type1, off, 32 + domain_len); //Offset
off += 4; //32
//Version omitted
//Payload : Domain
System.arraycopy(domain, 0, type1, off, domain.length);
off += domain_len;
//Payload : Workstation
System.arraycopy(workstation, 0, type1, off, workstation.length);
return type1;
}
private static String encodeFirst(String user, String pass, String type, String response) {
switch (type) {
case AUTH_PLAIN:
return new String(Base64.encode((user + pass).getBytes()));
case AUTH_LOGIN:
return new String(Base64.encode(user.getBytes()));
case AUTH_NTLM:
return new String(Base64.encode(NEGOTIATE_MESSAGE()));
}
return null;
}
private static byte[] makeDesKey(byte[] input, int off) {
int[] in = new int[input.length];
for (int i = 0; i < in.length; i++) {
in[i] = input[i] < 0 ? input[i] + 256: input[i];
}
byte[] out = new byte[8];
out[0] = (byte)in[off+0];
out[1] = (byte)(((in[off+0] << 7) & 0xff) | (in[off+1] >> 1));
out[2] = (byte)(((in[off+1] << 6) & 0xff) | (in[off+2] >> 2));
out[3] = (byte)(((in[off+2] << 5) & 0xff) | (in[off+3] >> 3));
out[4] = (byte)(((in[off+3] << 4) & 0xff) | (in[off+4] >> 4));
out[5] = (byte)(((in[off+4] << 3) & 0xff) | (in[off+5] >> 5));
out[6] = (byte)(((in[off+5] << 2) & 0xff) | (in[off+6] >> 6));
out[7] = (byte)((in[off+6] << 1) & 0xff);
return out;
}
private static byte[] calcLMHash(String password, Cipher cipher, SecretKeyFactory fac) throws GeneralSecurityException {
byte[] magic = {0x4b, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25};
byte[] pwb = null;
try {
pwb = password.toUpperCase(Locale.ENGLISH).getBytes("iso-8859-1");
} catch (UnsupportedEncodingException ex) {
// should never happen
assert false;
}
byte[] pwb1 = new byte[14];
int len = password.length();
if (len > 14) {
len = 14;
}
System.arraycopy(pwb, 0, pwb1, 0, len); /* Zero padded */
DESKeySpec dks1 = new DESKeySpec(makeDesKey(pwb1, 0));
DESKeySpec dks2 = new DESKeySpec(makeDesKey(pwb1, 7));
SecretKey key1 = fac.generateSecret(dks1);
SecretKey key2 = fac.generateSecret(dks2);
cipher.init(Cipher.ENCRYPT_MODE, key1);
byte[] out1 = cipher.doFinal(magic, 0, 8);
cipher.init(Cipher.ENCRYPT_MODE, key2);
byte[] out2 = cipher.doFinal(magic, 0, 8);
byte[] result = new byte [21];
System.arraycopy(out1, 0, result, 0, 8);
System.arraycopy(out2, 0, result, 8, 8);
return result;
}
private static byte[] calcNTHash(String password) throws GeneralSecurityException {
//nTOWFv1()
byte[] pw = null;
try {
pw = password.getBytes("UnicodeLittleUnmarked");
} catch (UnsupportedEncodingException e) {
assert false;
}
MD4 md4 = new MD4();
byte[] out = md4.digest(pw);
byte[] result = new byte[21];
System.arraycopy(out, 0, result, 0, 16);
return result;
}
private static byte[] calcNTv2Hash(String domain, String username, String password) throws GeneralSecurityException {
//nTOWFv2()
try {
MD4 md4 = new MD4();
md4.update(password.getBytes("UnicodeLittleUnmarked"));
HMACT64 hmac = new HMACT64(md4.digest());
hmac.update(username.toUpperCase().getBytes("UnicodeLittleUnmarked"));
hmac.update(domain.getBytes("UnicodeLittleUnmarked"));
return hmac.digest();
} catch (Exception uee) {
return null;
}
}
private static byte[] calcResponse(byte[] key, byte[] text, Cipher cipher, SecretKeyFactory fac) throws GeneralSecurityException {
assert key.length == 21;
DESKeySpec dks1 = new DESKeySpec(makeDesKey(key, 0));
DESKeySpec dks2 = new DESKeySpec(makeDesKey(key, 7));
DESKeySpec dks3 = new DESKeySpec(makeDesKey(key, 14));
SecretKey key1 = fac.generateSecret(dks1);
SecretKey key2 = fac.generateSecret(dks2);
SecretKey key3 = fac.generateSecret(dks3);
cipher.init(Cipher.ENCRYPT_MODE, key1);
byte[] out1 = cipher.doFinal(text, 0, 8);
cipher.init(Cipher.ENCRYPT_MODE, key2);
byte[] out2 = cipher.doFinal(text, 0, 8);
cipher.init(Cipher.ENCRYPT_MODE, key3);
byte[] out3 = cipher.doFinal(text, 0, 8);
byte[] result = new byte[24];
System.arraycopy(out1, 0, result, 0, 8);
System.arraycopy(out2, 0, result, 8, 8);
System.arraycopy(out3, 0, result, 16, 8);
return result;
}
private static byte[] hmacMD5(Mac hmac, byte[] key, byte[] text) {
try {
byte[] nk = new byte[16];
System.arraycopy(key, 0, nk, 0, key.length > 16 ? 16 : key.length);
SecretKeySpec skey = new SecretKeySpec(nk, "HmacMD5");
hmac.init(skey);
return hmac.doFinal(text);
} catch (InvalidKeyException ex) {
assert false;
} catch (RuntimeException e) {
assert false;
}
return null;
}
private static byte[] calcLMv2Response(String domain, String user,
String password, byte[] server_nonce, byte[] client_nonce)
{
try {
byte[] hash = new byte[16];
byte[] response = new byte[24];
MD4 md4 = new MD4();
HMACT64 hmac = new HMACT64(md4.digest(password.getBytes("UnicodeLittleUnmarked")));
hmac.update(user.toUpperCase().getBytes("UnicodeLittleUnmarked"));
hmac.update(domain.toUpperCase().getBytes("UnicodeLittleUnmarked"));
hmac = new HMACT64(hmac.digest());
hmac.update(server_nonce);
hmac.update(client_nonce);
hmac.digest(response, 0, 16);
System.arraycopy(client_nonce, 0, response, 16, 8);
return response;
} catch (Exception ex) {
return null;
}
}
private static byte[] calcNTv2Response(byte[] nthash, byte[] client_blob, byte[] server_nonce, String domain, String username)
throws GeneralSecurityException
{
//this version is from Jakarta Mail API
byte[] txt = null;
try {
txt = (username.toUpperCase(Locale.ENGLISH) + domain).getBytes("UnicodeLittleUnmarked");
} catch (UnsupportedEncodingException ex) {
// should never happen
assert false;
}
Mac hmac = Mac.getInstance("HmacMD5");
byte[] ntlmv2hash = hmacMD5(hmac, nthash, txt);
byte[] cb = new byte[client_blob.length + 8];
System.arraycopy(server_nonce, 0, cb, 0, 8);
System.arraycopy(client_blob, 0, cb, 8, client_blob.length);
byte[] result = new byte[client_blob.length + 16];
System.arraycopy(hmacMD5(hmac, ntlmv2hash, cb), 0, result, 0, 16);
System.arraycopy(client_blob, 0, result, 16, client_blob.length);
return result;
}
private static byte[] calcNTv2ResponseVariant(byte[] nthash, byte[] client_blob, byte[] server_nonce)
throws GeneralSecurityException
{
//this version is from jcifs
HMACT64 hmac = new HMACT64(nthash);
hmac.update(server_nonce);
hmac.update(client_blob, 0, client_blob.length);
byte[] mac = hmac.digest();
byte[] ret = new byte[mac.length + client_blob.length];
System.arraycopy(mac, 0, ret, 0, mac.length);
System.arraycopy(client_blob, 0, ret, mac.length, client_blob.length);
return ret;
}
private static byte[] AUTHENTICATE_MESSAGE(String user_str, String pass_str, String response) {
//CHALLENGE_MESSAGE
//https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-nlmp/801a4681-8809-4be9-ab0d-61dcfe762786
byte[] challenge = null;
try {
challenge = response.getBytes("us-ascii");
} catch (Exception e) {
JFLog.log(log, e);
}
//TODO : validate challenge
byte[] type2 = Base64.decode(challenge);
byte[] server_nonce = Arrays.copyOfRange(type2, 24, 24+8);
int server_flags = LE.getuint32(type2, 20);
//AUTHENTICATE_MESSAGE
//https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-nlmp/033d32cc-88f9-4483-9bf2-b273055038ce
byte[] lmhash;
byte[] lm_response;
byte[] nthash;
byte[] nt_response;
int client_flags =
NTLMSSP_NEGOTIATE_UNICODE |
NTLMSSP_NEGOTIATE_NTLM |
NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
String domain_str = System.getenv("USERDOMAIN");
String workstation_str = System.getenv("COMPUTERNAME");
try {
if ((server_flags & NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY) != 0) {
JFLog.log(log, "SMTP:AUTH:NTLMv2");
client_flags |= NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY;
byte[] client_nonce = new byte[8];
(new Random()).nextBytes(client_nonce);
lm_response = calcLMv2Response(domain_str, user_str, pass_str, server_nonce, client_nonce);
//just for debugging
byte[] targetName = new byte[0];
if ((server_flags & NTLMSSP_REQUEST_TARGET) != 0) {
int tlen = LE.getuint16(type2, 12);
int toff = LE.getuint32(type2, 16);
targetName = new byte[tlen];
System.arraycopy(type2, toff, targetName, 0, tlen);
}
byte[] targetInfo = new byte[0];
if ((server_flags & NTLMSSP_NEGOTIATE_TARGET_INFO) != 0) {
int tlen = LE.getuint16(type2, 40);
int toff = LE.getuint32(type2, 44);
targetInfo = new byte[tlen];
System.arraycopy(type2, toff, targetInfo, 0, tlen);
//https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-nlmp/83f5e789-660d-4781-8491-5f8c6641f75e
}
byte[] blob = new byte[28 + targetInfo.length + 4];
blob[0] = RESPONSERVERSION;
blob[1] = HIRESPONSERVERSION;
System.arraycopy(Z6, 0, blob, 2, 6);
// convert time to NT format
long now = (System.currentTimeMillis() + 11644473600000L) * 10000L;
for (int i = 0; i < 8; i++) {
blob[8 + i] = (byte)(now & 0xff);
now >>= 8;
}
(new Random()).nextBytes(client_nonce);
System.arraycopy(client_nonce, 0, blob, 16, 8);
System.arraycopy(Z4, 0, blob, 24, 4);
System.arraycopy(targetInfo, 0, blob, 28, targetInfo.length);
System.arraycopy(Z4, 0, blob, 28 + targetInfo.length, 4);
if (false) { //both methods work
//Jakarta mail method
nthash = calcNTHash(pass_str);
nt_response = calcNTv2Response(nthash, blob, server_nonce, domain_str, user_str);
} else {
//jcifs method
nthash = calcNTv2Hash(domain_str, user_str, pass_str);
nt_response = calcNTv2ResponseVariant(nthash, blob, server_nonce);
}
if ((server_flags & NTLMSSP_NEGOTIATE_SIGN) != 0) {
JFLog.log(log, "SMTP:NTML:ERROR:NEED SESSION KEYS");
//https://github.com/codelibs/jcifs/blob/master/src/main/java/jcifs/smb1/ntlmssp/Type3Message.java#L247
if ((server_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) != 0) {
JFLog.log(log, "SMTP:NTML:ERROR:NEED EXCHANGE KEYS");
}
}
} else {
JFLog.log(log, "SMTP:AUTH:NTLMv1");
SecretKeyFactory fac = SecretKeyFactory.getInstance("DES");
Cipher cipher = Cipher.getInstance("DES/ECB/NoPadding");
lmhash = calcLMHash(pass_str, cipher, fac);
lm_response = calcResponse(lmhash, server_nonce, cipher, fac);
nthash = calcNTHash(pass_str);
nt_response = calcResponse(nthash, server_nonce, cipher, fac);
}
} catch (Exception e) {
JFLog.log(log, e);
return null;
}
int payload_off = 64;
int lm_response_len = lm_response.length;
int lm_response_off = payload_off;
payload_off += lm_response_len;
int nt_response_len = nt_response.length;
int nt_response_off = payload_off;
payload_off += nt_response_len;
if (domain_str == null) return null;
byte[] domain = null;
try {
domain = domain_str.getBytes("UnicodeLittleUnmarked");
} catch (Exception e) {
JFLog.log(log, e);
}
int domain_len = domain.length;
int domain_off = payload_off;
payload_off += domain_len;
byte[] user = null;
try {
user = user_str.getBytes("UnicodeLittleUnmarked");
} catch (Exception e) {
JFLog.log(log, e);
}
int user_len = user.length;
int user_off = payload_off;
payload_off += user_len;
if (workstation_str == null) return null;
byte[] workstation = null;
try {
workstation = workstation_str.getBytes("UnicodeLittleUnmarked");
} catch (Exception e) {
JFLog.log(log, e);
}
int workstation_len = workstation.length;
int workstation_off = payload_off;
payload_off += workstation_len;
byte[] session_key = new byte[0];
int session_key_len = session_key.length;
int session_key_off = payload_off;
payload_off += session_key_len;
// byte[] mic = new byte[16];
byte[] type3 = new byte[64 + lm_response_len + nt_response_len + domain_len + user_len + workstation_len + session_key_len];
int off = 0;
LE.setString(type3, off, 7, "NTLMSSP"); //byte signature[8]
off += 8; //8
LE.setuint32(type3, off, 0x00000003); //int message_type
off += 4; //12
//LmResponse : short Len, short MaxLen, int Offset
LE.setuint16(type3, off, lm_response_len); //Len
off += 2; //14
LE.setuint16(type3, off, lm_response_len); //MaxLen (ignored)
off += 2; //16
LE.setuint32(type3, off, lm_response_off); //Offset
off += 4; //20