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Removed Builder, and fixed call to checkFormatString
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matthew-dailey authored and hierynomus committed Jul 10, 2017
1 parent 3729119 commit e5084ed
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Showing 2 changed files with 24 additions and 71 deletions.
Original file line number Diff line number Diff line change
Expand Up @@ -21,17 +21,24 @@
/** A PasswordFinder that reads a password from a console */
public class ConsolePasswordFinder implements PasswordFinder {

public static final String DEFAULT_FORMAT = "Enter passphrase for %s:";

private final Console console;
private final String promptFormat;
private final int maxTries;

private int numTries;

public static ConsolePasswordFinderBuilder builder() {
return new ConsolePasswordFinderBuilder();
public ConsolePasswordFinder() {
this(System.console());
}

public ConsolePasswordFinder(Console console) {
this(console, DEFAULT_FORMAT, 3);
}

public ConsolePasswordFinder(Console console, String promptFormat, int maxTries) {
checkFormatString(promptFormat);
this.console = console;
this.promptFormat = promptFormat;
this.maxTries = maxTries;
Expand All @@ -53,59 +60,12 @@ public boolean shouldRetry(Resource<?> resource) {
return numTries < maxTries;
}

public static class ConsolePasswordFinderBuilder {
private Console console;
private String promptFormat;
private int maxTries;

/** Builder constructor should only be called from parent class */
private ConsolePasswordFinderBuilder() {
console = System.console();
promptFormat = "Enter passphrase for %s:";
maxTries = 3;
}

public ConsolePasswordFinder build() {
return new ConsolePasswordFinder(console, promptFormat, maxTries);
}

public ConsolePasswordFinderBuilder setConsole(Console console) {
this.console = console;
return this;
}

public Console getConsole() {
return console;
}

/**
* @param promptFormat a StringFormatter string that may contain up to one "%s"
*/
public ConsolePasswordFinderBuilder setPromptFormat(String promptFormat) {
checkFormatString(promptFormat);
this.promptFormat = promptFormat;
return this;
}

public String getPromptFormat() {
return promptFormat;
}

public ConsolePasswordFinderBuilder setMaxTries(int maxTries) {
this.maxTries = maxTries;
return this;
}

public int getMaxTries() {
return maxTries;
}

private static void checkFormatString(String promptFormat) {
try {
String.format(promptFormat, "");
} catch (IllegalFormatException e) {
throw new IllegalArgumentException("promptFormat must have no more than one %s and no other markers", e);
}
private static void checkFormatString(String promptFormat) {
try {
String.format(promptFormat, "");
} catch (IllegalFormatException e) {
throw new IllegalArgumentException("promptFormat must have no more than one %s and no other markers", e);
}
}

}
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,8 @@

public class TestConsolePasswordFinder {

private static final String FORMAT = "%s";

@Test
public void testReqPassword() {
char[] expectedPassword = "password".toCharArray();
Expand All @@ -32,10 +34,7 @@ public void testReqPassword() {
.thenReturn(expectedPassword);

Resource resource = Mockito.mock(Resource.class);
char[] password = ConsolePasswordFinder.builder()
.setConsole(console)
.build()
.reqPassword(resource);
char[] password = new ConsolePasswordFinder(console).reqPassword(resource);

Assert.assertArrayEquals("Password should match mocked return value",
expectedPassword, password);
Expand All @@ -45,10 +44,7 @@ public void testReqPassword() {
@Test
public void testReqPasswordNullConsole() {
Resource<?> resource = Mockito.mock(Resource.class);
char[] password = ConsolePasswordFinder.builder()
.setConsole(null)
.build()
.reqPassword(resource);
char[] password = new ConsolePasswordFinder(null, FORMAT, 1).reqPassword(resource);

Assert.assertNull("Password should be null with null console", password);
Mockito.verifyNoMoreInteractions(resource);
Expand All @@ -57,10 +53,7 @@ public void testReqPasswordNullConsole() {
@Test
public void testShouldRetry() {
Resource<String> resource = new PrivateKeyStringResource("");
ConsolePasswordFinder finder = ConsolePasswordFinder.builder()
.setConsole(null)
.setMaxTries(1)
.build();
ConsolePasswordFinder finder = new ConsolePasswordFinder(null, FORMAT, 1);
Assert.assertTrue("Should allow a retry at first", finder.shouldRetry(resource));

finder.reqPassword(resource);
Expand All @@ -71,20 +64,20 @@ public void testShouldRetry() {
public void testPromptFormat() {
Assert.assertNotNull(
"Empty format should create valid ConsolePasswordFinder",
ConsolePasswordFinder.builder().setPromptFormat("").build());
new ConsolePasswordFinder(null, "", 1));
Assert.assertNotNull(
"Single-string format should create valid ConsolePasswordFinder",
ConsolePasswordFinder.builder().setPromptFormat("%s").build());
new ConsolePasswordFinder(null, FORMAT, 1));
}

@Test(expected = IllegalArgumentException.class)
public void testPromptFormatTooManyMarkers() {
ConsolePasswordFinder.builder().setPromptFormat("%s%s");
new ConsolePasswordFinder(null, "%s%s", 1);
}

@Test(expected = IllegalArgumentException.class)
public void testPromptFormatWrongMarkerType() {
ConsolePasswordFinder.builder().setPromptFormat("%d");
new ConsolePasswordFinder(null, "%d", 1);
}

}

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