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more versatile password response provider

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This commit is contained in:
Shikhar Bhushan
2010-05-24 23:20:49 +01:00
parent d87e0c2da2
commit 738b317dcf
1 changed files with 15 additions and 5 deletions
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20
src/main/java/net/schmizz/sshj/userauth/method/PasswordResponseProvider.java
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@@ -20,6 +20,8 @@ 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;
@@ -30,12 +32,21 @@ public class PasswordResponseProvider
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 =
Collections.unmodifiableCollection(Arrays.asList("Password:"));
private final Collection<String> acceptablePrompts;
private final PasswordFinder pwdf; private final PasswordFinder pwdf;
private Resource resource; private Resource resource;
private boolean gaveOnce; private boolean gaveAlready;
public PasswordResponseProvider(PasswordFinder pwdf) { public PasswordResponseProvider(PasswordFinder pwdf) {
this(pwdf, DEFAULT_ACCEPTABLE_PROMPTS);
}
public PasswordResponseProvider(PasswordFinder pwdf, Collection<String> acceptablePrompts) {
this.pwdf = pwdf; this.pwdf = pwdf;
this.acceptablePrompts = acceptablePrompts;
} }
@Override @Override
@@ -46,14 +57,13 @@ public class PasswordResponseProvider
@Override @Override
public void init(Resource resource, String name, String instruction) { public void init(Resource resource, String name, String instruction) {
this.resource = resource; this.resource = resource;
log.debug("name=`{}`; instruction=`{}`", name, instruction); log.debug("Challenge - name=`{}`; instruction=`{}`", name, instruction);
} }
@Override @Override
public char[] getResponse(String prompt, boolean echo) { public char[] getResponse(String prompt, boolean echo) {
if (!gaveOnce && !echo && prompt.toLowerCase().contains("password")) { if (!gaveAlready && !echo && acceptablePrompts.contains(prompt)) {
gaveOnce = true; gaveAlready = true;
log.debug("prompt = `{}`", prompt);
return pwdf.reqPassword(resource); return pwdf.reqPassword(resource);
} }
return EMPTY_RESPONSE; return EMPTY_RESPONSE;