From bfa998a3d04e759be555dd8136aaa9450960a879 Mon Sep 17 00:00:00 2001
From: James Moger <james.moger@gitblit.com>
Date: Thu, 10 Apr 2014 19:00:04 -0400
Subject: [PATCH] Documentation
---
src/main/java/com/gitblit/transport/ssh/FileKeyManager.java | 81 ++++++++++++++++++++++++++++------------
1 files changed, 57 insertions(+), 24 deletions(-)
diff --git a/src/main/java/com/gitblit/transport/ssh/FileKeyManager.java b/src/main/java/com/gitblit/transport/ssh/FileKeyManager.java
index 1eb470b..8a3d2ff 100644
--- a/src/main/java/com/gitblit/transport/ssh/FileKeyManager.java
+++ b/src/main/java/com/gitblit/transport/ssh/FileKeyManager.java
@@ -17,14 +17,11 @@
import java.io.File;
import java.io.IOException;
-import java.security.PublicKey;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
-
-import org.apache.commons.codec.binary.Base64;
-import org.apache.sshd.common.util.Buffer;
-import org.eclipse.jgit.lib.Constants;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
import com.gitblit.Keys;
import com.gitblit.manager.IRuntimeManager;
@@ -33,17 +30,20 @@
import com.google.common.io.Files;
/**
- * Manages SSH keys on the filesystem.
+ * Manages public keys on the filesystem.
*
* @author James Moger
*
*/
-public class FileKeyManager implements IKeyManager {
+public class FileKeyManager extends IPublicKeyManager {
protected final IRuntimeManager runtimeManager;
+ protected final Map<File, Long> lastModifieds;
+
public FileKeyManager(IRuntimeManager runtimeManager) {
this.runtimeManager = runtimeManager;
+ this.lastModifieds = new ConcurrentHashMap<File, Long>();
}
@Override
@@ -54,6 +54,7 @@
@Override
public FileKeyManager start() {
+ log.info(toString());
return this;
}
@@ -68,15 +69,34 @@
}
@Override
- public List<PublicKey> getKeys(String username) {
+ protected boolean isStale(String username) {
+ File keystore = getKeystore(username);
+ if (!keystore.exists()) {
+ // keystore may have been deleted
+ return true;
+ }
+
+ if (lastModifieds.containsKey(keystore)) {
+ // compare modification times
+ long lastModified = lastModifieds.get(keystore);
+ return lastModified != keystore.lastModified();
+ }
+
+ // assume stale
+ return true;
+ }
+
+ @Override
+ protected List<SshKey> getKeysImpl(String username) {
try {
- File keys = getKeystore(username);
- if (!keys.exists()) {
+ log.info("loading keystore for {}", username);
+ File keystore = getKeystore(username);
+ if (!keystore.exists()) {
return null;
}
- if (keys.exists()) {
- List<PublicKey> list = new ArrayList<PublicKey>();
- for (String entry : Files.readLines(keys, Charsets.ISO_8859_1)) {
+ if (keystore.exists()) {
+ List<SshKey> list = new ArrayList<SshKey>();
+ for (String entry : Files.readLines(keystore, Charsets.ISO_8859_1)) {
if (entry.trim().length() == 0) {
// skip blanks
continue;
@@ -85,14 +105,15 @@
// skip comments
continue;
}
- final String[] parts = entry.split(" ");
- final byte[] bin = Base64.decodeBase64(Constants.encodeASCII(parts[1]));
- list.add(new Buffer(bin).getRawPublicKey());
+ SshKey key = new SshKey(entry);
+ list.add(key);
}
if (list.isEmpty()) {
return null;
}
+
+ lastModifieds.put(keystore, keystore.lastModified());
return list;
}
} catch (IOException e) {
@@ -106,9 +127,9 @@
* by disregarding the comment/description field during key comparisons.
*/
@Override
- public boolean addKey(String username, String data) {
+ public boolean addKey(String username, SshKey key) {
try {
- String newKey = stripCommentFromKey(data);
+ String newKey = stripCommentFromKey(key.getRawData());
List<String> lines = new ArrayList<String>();
File keystore = getKeystore(username);
@@ -135,11 +156,14 @@
}
// add new key
- lines.add(data);
+ lines.add(key.getRawData());
// write keystore
String content = Joiner.on("\n").join(lines).trim().concat("\n");
Files.write(content, keystore, Charsets.ISO_8859_1);
+
+ lastModifieds.remove(keystore);
+ keyCache.invalidate(username);
return true;
} catch (IOException e) {
throw new RuntimeException("Cannot add ssh key", e);
@@ -147,12 +171,12 @@
}
/**
- * Removes a key from the keystore.
+ * Removes the specified key from the keystore.
*/
@Override
- public boolean removeKey(String username, String data) {
+ public boolean removeKey(String username, SshKey key) {
try {
- String rmKey = stripCommentFromKey(data);
+ String rmKey = stripCommentFromKey(key.getRawData());
File keystore = getKeystore(username);
if (keystore.exists()) {
@@ -183,6 +207,9 @@
String content = Joiner.on("\n").join(lines).trim().concat("\n");
Files.write(content, keystore, Charsets.ISO_8859_1);
}
+
+ lastModifieds.remove(keystore);
+ keyCache.invalidate(username);
return true;
}
} catch (IOException e) {
@@ -193,7 +220,13 @@
@Override
public boolean removeAllKeys(String username) {
- return getKeystore(username).delete();
+ File keystore = getKeystore(username);
+ if (keystore.delete()) {
+ lastModifieds.remove(keystore);
+ keyCache.invalidate(username);
+ return true;
+ }
+ return false;
}
protected File getKeystore(String username) {
@@ -205,7 +238,7 @@
/* Strips the comment from the key data and eliminates whitespace diffs */
protected String stripCommentFromKey(String data) {
- String [] cols = data.split(" ");
+ String [] cols = data.split(" ", 3);
String key = Joiner.on(" ").join(cols[0], cols[1]);
return key;
}
--
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