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Per #77 use regex matching inside PasswordResponseProvider. Also remove the 'gaveAlready' state, we can leave such logic to the PasswordFinder to implement if needed.

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This commit is contained in:
Shikhar Bhushan
2012-06-06 23:59:41 +01:00
parent a877ec1448
commit 4fb56b868f
1 changed files with 10 additions and 13 deletions
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21
src/main/java/net/schmizz/sshj/userauth/method/PasswordResponseProvider.java
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@@ -20,33 +20,31 @@ import net.schmizz.sshj.userauth.password.Resource;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections; import java.util.Collections;
import java.util.List; import java.util.List;
import java.util.regex.Pattern;
public class PasswordResponseProvider public class PasswordResponseProvider
implements ChallengeResponseProvider { implements ChallengeResponseProvider {
public static final Pattern DEFAULT_PROMPT_PATTERN = Pattern.compile(".*[pP]assword:\\s?\\z");
private final Logger log = LoggerFactory.getLogger(getClass()); private final Logger log = LoggerFactory.getLogger(getClass());
private static final char[] EMPTY_RESPONSE = new char[0]; private static final char[] EMPTY_RESPONSE = new char[0];
private static final Collection<String> DEFAULT_ACCEPTABLE_PROMPTS = private final Pattern promptPattern;
Collections.unmodifiableCollection(Arrays.asList("Password:", "Password: "));
private final Collection<String> acceptablePrompts;
private final PasswordFinder pwdf; private final PasswordFinder pwdf;
private Resource resource; private Resource resource;
private boolean gaveAlready;
public PasswordResponseProvider(PasswordFinder pwdf) { public PasswordResponseProvider(PasswordFinder pwdf) {
this(pwdf, DEFAULT_ACCEPTABLE_PROMPTS); this(pwdf, DEFAULT_PROMPT_PATTERN);
} }
public PasswordResponseProvider(PasswordFinder pwdf, Collection<String> acceptablePrompts) { public PasswordResponseProvider(PasswordFinder pwdf, Pattern promptPattern) {
this.pwdf = pwdf; this.pwdf = pwdf;
this.acceptablePrompts = acceptablePrompts; this.promptPattern = promptPattern;
} }
@Override @Override
@@ -62,8 +60,7 @@ public class PasswordResponseProvider
@Override @Override
public char[] getResponse(String prompt, boolean echo) { public char[] getResponse(String prompt, boolean echo) {
if (!gaveAlready && !echo && acceptablePrompts.contains(prompt)) { if (!echo && promptPattern.matcher(prompt).matches()) {
gaveAlready = true;
return pwdf.reqPassword(resource); return pwdf.reqPassword(resource);
} }
return EMPTY_RESPONSE; return EMPTY_RESPONSE;