ghidra/Ghidra/Features/GhidraServer/src/main/java/ghidra/server/ServerAdmin.java
2019-04-10 17:42:12 -04:00

389 lines
12 KiB
Java

/* ###
* IP: GHIDRA
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ghidra.server;
import java.io.*;
import java.util.ArrayList;
import java.util.Properties;
import javax.security.auth.x500.X500Principal;
import generic.jar.ResourceFile;
import ghidra.GhidraApplicationLayout;
import ghidra.GhidraLaunchable;
import ghidra.framework.Application;
import ghidra.framework.ApplicationConfiguration;
import ghidra.util.Msg;
import ghidra.util.NamingUtilities;
public class ServerAdmin implements GhidraLaunchable {
private static final String CONFIG_FILE_PROPERTY = "UserAdmin.config";
// property name defined within the sever.conf file which specifies
// server repositories directory
private static final String SERVER_DIR_CONFIG_PROPERTY = "ghidra.repositories.dir";
private static final String INVOCATION_NAME_PROPERTY = "UserAdmin.invocation";
// Immediate commands
private static final String LIST_COMMAND = "-list";
private static final String USERS_COMMAND = "-users";
// Delayed commands
private static final String MIGRATE_COMMAND = "-migrate";
private static final String MIGRATE_ALL_COMMAND = "-migrate-all";
private boolean propertyUsed = false;
/**
* Main method for running the UserAdmin Application.
* The following properties may be set:
* <pre>
* UserAdmin.invocation - identifies the name of the application used when displaying usage text.
* UserAdmin.serverDir - identifies the server directory instead of passing on command line.
* </pre>
* @param args command line arguments
*/
@Override
public void launch(GhidraApplicationLayout layout, String[] args) {
// Perform static initializations if not already initialized
// Some tests invoke main method directly which have already initialized Application
if (!Application.isInitialized()) {
ApplicationConfiguration configuration = new ApplicationConfiguration();
configuration.setInitializeLogging(false);
Application.initializeApplication(layout, configuration);
}
File serverDir = null;
int ix = 0;
if (args.length != 0 && !args[0].startsWith("-")) {
serverDir = new File(args[ix++]);
}
else {
serverDir = getServerDirFromConfig();
}
if (serverDir == null || (args.length - ix) == 0) {
displayUsage("");
System.exit(-1);
return;
}
try {
serverDir = serverDir.getCanonicalFile();
}
catch (IOException e1) {
System.err.println("Failed to resolve server directory: " + serverDir);
System.exit(-1);
}
if (propertyUsed) {
System.out.println("Using server directory: " + serverDir);
}
File userFile = new File(serverDir, UserManager.USER_PASSWORD_FILE);
if (!serverDir.isDirectory() || !userFile.isFile()) {
System.err.println("Invalid Ghidra server directory!");
System.exit(-1);
}
File cmdDir = new File(serverDir, UserAdmin.ADMIN_CMD_DIR);
if (!cmdDir.isDirectory() || !cmdDir.canWrite()) {
System.err.println("Insufficient privilege or server not started!");
System.exit(-1);
}
// Process command line
boolean listRepositories = false;
boolean listUsers = false;
boolean migrationConfirmed = false;
boolean migrationAbort = false;
ArrayList<String> cmdList = new ArrayList<>();
int cmdLen = 1;
for (; ix < args.length; ix += cmdLen) {
boolean queueCmd = true;
if (UserAdmin.ADD_USER_COMMAND.equals(args[ix])) { // add user
cmdLen = 2;
validateSID(args, ix + 1);
}
else if (UserAdmin.REMOVE_USER_COMMAND.equals(args[ix])) { // remove user
cmdLen = 2;
validateSID(args, ix + 1);
}
else if (UserAdmin.RESET_USER_COMMAND.equals(args[ix])) { // reset user
cmdLen = 2;
validateSID(args, ix + 1);
}
else if (UserAdmin.SET_USER_DN_COMMAND.equals(args[ix])) { // set/add user with DN for PKI
cmdLen = 3;
validateSID(args, ix + 1);
validateDN(args, ix + 2);
}
else if (UserAdmin.SET_ADMIN_COMMAND.equals(args[ix])) { // set/add repository admin
cmdLen = 3;
validateSID(args, ix + 1);
validateRepName(args, ix + 2, serverDir);
}
else if (LIST_COMMAND.equals(args[ix])) { // list repositories
cmdLen = 1;
queueCmd = false;
listRepositories = true;
}
else if (USERS_COMMAND.equals(args[ix])) { // list users (also affects listRepositories)
cmdLen = 1;
queueCmd = false;
listUsers = true;
}
else if (MIGRATE_ALL_COMMAND.equals(args[ix])) { // list repositories
cmdLen = 1;
queueCmd = false;
if (!migrationConfirmed && !confirmMigration()) {
migrationAbort = true;
}
migrationConfirmed = true;
if (!migrationAbort) {
RepositoryManager.markAllRepositoriesForIndexMigration(serverDir);
}
}
else if (MIGRATE_COMMAND.equals(args[ix])) { // list repositories
cmdLen = 2;
queueCmd = false;
if (ix == (args.length - 1)) {
System.err.println("Missing " + MIGRATE_COMMAND + " repository name argument");
}
else {
String repositoryName = args[ix + 1];
if (!migrationConfirmed && !confirmMigration()) {
migrationAbort = true;
}
migrationConfirmed = true;
if (!migrationAbort) {
Repository.markRepositoryForIndexMigration(serverDir, repositoryName,
false);
}
}
}
else {
displayUsage("Invalid usage!");
System.exit(-1);
}
if (queueCmd) {
addCommand(cmdList, args, ix, cmdLen);
}
}
try {
UserAdmin.writeCommands(cmdList, cmdDir);
}
catch (IOException e) {
System.err.println("Failed to queue commands: " + e.toString());
System.exit(-1);
}
System.out.println(cmdList.size() + " command(s) queued.");
if (listUsers) {
UserManager.listUsers(serverDir);
}
if (listRepositories) {
RepositoryManager.listRepositories(serverDir, listUsers);
}
System.out.println();
}
/**
* @param serverDir
* @param args
* @param i
*/
private static void addCommand(ArrayList<String> cmdList, String[] args, int argOffset,
int argCnt) {
StringBuffer buf = new StringBuffer();
for (int i = 0; i < argCnt; i++) {
if (i > 0) {
buf.append(' ');
}
buf.append(args[argOffset + i]);
}
cmdList.add(buf.toString());
}
private static boolean confirmMigration() {
System.out.print("\nWARNING! Please confirm the requested migration of one or more\n" +
"Ghidra Server repositories. Once migrated to indexed storage,\n" +
"any attempt to use these server repositories with a Ghidra Server\n" +
"older than version 5.5 will corrupt the data storage.\n" +
"\nWould you like to continue? [y/n]: ");
try {
if ('y' == System.in.read()) {
System.out.println();
return true;
}
}
catch (IOException e) {
e.printStackTrace();
}
System.out.println("\nAll repository data migration(s) has been aborted.");
return false;
}
/**
* Validate properly formatted Distinguished Name
* Example: 'CN=Doe John, OU=X, OU=Y, OU=DoD, O=U.S. Government, C=US'
* @param args
* @param i argument index
*/
private void validateDN(String[] args, int i) {
if (args.length < (i + 1)) {
displayUsage("Invalid usage!");
System.exit(-1);
}
String dn = args[i];
try {
X500Principal x500User = new X500Principal(dn);
args[i] = "\"" + x500User.getName() + "\"";
}
catch (Exception e) {
Msg.error(UserAdmin.class, "Invalid DN: " + dn);
System.exit(-1);
}
}
/**
* Validate username/sid
* @param args
* @param i argument index
*/
private void validateSID(String[] args, int i) {
if (args.length < (i + 1)) {
displayUsage("Invalid usage!");
System.exit(-1);
}
String sid = args[i];
if (!NamingUtilities.isValidName(sid) || sid.indexOf(' ') >= 0) {
Msg.error(UserAdmin.class, "Invalid username/sid: " + sid);
System.exit(-1);
}
}
/**
* Validate username/sid
* @param args
* @param i argument index
*/
private void validateRepName(String[] args, int i, File rootDirFile) {
if (args.length < (i + 1)) {
displayUsage("Invalid usage!");
System.exit(-1);
}
String repName = args[i];
File f = new File(rootDirFile, NamingUtilities.mangle(repName));
if (!f.isDirectory()) {
Msg.error(UserAdmin.class, "Repository not found: " + repName);
System.exit(-1);
}
}
private File getServerDirFromConfig() {
String p = System.getProperty(CONFIG_FILE_PROPERTY);
if (p == null) {
return null;
}
propertyUsed = true;
File configFile = new File(p);
if (!configFile.exists()) {
System.out.println("Config file not found: " + configFile.getAbsolutePath());
}
Properties config = new Properties();
InputStream in = null;
try {
in = new FileInputStream(configFile);
config.load(in);
}
catch (IOException e) {
System.out.println("Failed to read " + configFile.getName() + ": " + e.getMessage());
}
finally {
if (in != null) {
try {
in.close();
}
catch (IOException e) {
// ignore
}
}
}
p = config.getProperty(SERVER_DIR_CONFIG_PROPERTY);
if (p == null) {
return null;
}
File dir = new File(p);
if (!dir.isAbsolute()) {
// Make relative repositories dir relative to installation root
ResourceFile installRoot = Application.getInstallationDirectory();
if (installRoot == null || installRoot.getFile(false) == null) {
System.out.println("Failed to resolve installation root directory!");
return null;
}
dir = new File(installRoot.getFile(false), p);
}
return dir;
}
/**
* Display an optional message followed by usage syntax.
* @param msg
*/
private void displayUsage(String msg) {
if (msg != null) {
System.err.println(msg);
}
String invocationName = System.getProperty(INVOCATION_NAME_PROPERTY);
System.err.println("Usage: " +
(invocationName != null ? invocationName : "java " + UserAdmin.class.getName()) +
(propertyUsed ? "" : " <serverPath>") + " [<command>] [<command>] ...");
System.err.println("\nSupported commands:");
System.err.println(" -add <sid>");
System.err.println(" Add a new user to the server identified by their sid identifier");
System.err.println(" -remove <sid>");
System.err.println(" Remove the specified user from the server's user list");
System.err.println(" -reset <sid>");
System.err.println(" Reset the specified user's server login password");
System.err.println(" -dn <sid> \"<dname>\"");
System.err.println(
" When PKI authentication is used, add the specified X500 Distinguished Name for a user");
System.err.println(" -admin <sid> \"<repository-name>\"");
System.err.println(
" Grant ADMIN privilege to the specified user with the specified repository");
System.err.println(" -list [-users]");
System.err.println(
" Output list of repositories to the console (user access list will be included with -users)");
System.err.println(" -users");
System.err.println(" Output list of users to console which have server access");
System.err.println(" -migrate \"<repository-name>\"");
System.err.println(
" Migrate the specified repository to the latest file system storage schema (see svrREADME.html)");
System.err.println(" -migrate-all");
System.err.println(
" Migrate the all repositories to the latest file system storage schema (see svrREADME.html)");
System.err.println();
}
}