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package com.zeapo.pwdstore;
import android.net.Uri;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
/**
* A single entry in password store.
*/
public class PasswordEntry {
private static final String[] USERNAME_FIELDS = new String[]{"login", "username"};
private String extraContent;
private final String password;
private final String username;
private final String totpSecret;
private final String hotpSecret;
private final Long hotpCounter;
private final String content;
private boolean isIncremented = false;
public PasswordEntry(final ByteArrayOutputStream os) throws UnsupportedEncodingException {
this(os.toString("UTF-8"));
}
public PasswordEntry(final String decryptedContent) {
final String[] passContent = decryptedContent.split("\n", 2);
content = decryptedContent;
password = passContent[0];
totpSecret = findTotpSecret(content);
hotpSecret = findHotpSecret(content);
hotpCounter = findHotpCounter(content);
extraContent = findExtraContent(passContent);
username = findUsername();
}
public String getPassword() {
return password;
}
public String getExtraContent() {
return extraContent;
}
public String getUsername() {
return username;
}
public String getTotpSecret() {
return totpSecret;
}
public Long getHotpCounter() {
return hotpCounter;
}
public String getHotpSecret() {
return hotpSecret;
}
public boolean hasExtraContent() {
return extraContent.length() != 0;
}
public boolean hasUsername() {
return username != null;
}
public boolean hasTotp() {
return totpSecret != null;
}
public boolean hasHotp() {
return hotpSecret != null && hotpCounter != null;
}
public boolean hotpIsIncremented() { return isIncremented; }
public void incrementHotp() {
for (String line : content.split("\n")) {
if (line.startsWith("otpauth://hotp/")) {
extraContent = extraContent.replaceFirst("counter=[0-9]+", "counter=" + Long.toString(hotpCounter + 1));
isIncremented = true;
}
}
}
private String findUsername() {
final String[] extraLines = extraContent.split("\n");
for (String line : extraLines) {
for (String field : USERNAME_FIELDS) {
if (line.toLowerCase().startsWith(field + ":")) {
return line.split(": *", 2)[1];
}
}
}
return null;
}
private String findTotpSecret(String decryptedContent) {
for (String line : decryptedContent.split("\n")) {
if (line.startsWith("otpauth://totp/")) {
return Uri.parse(line).getQueryParameter("secret");
}
}
return null;
}
private String findHotpSecret(String decryptedContent) {
for (String line : decryptedContent.split("\n")) {
if (line.startsWith("otpauth://hotp/")) {
return Uri.parse(line).getQueryParameter("secret");
}
}
return null;
}
private Long findHotpCounter(String decryptedContent) {
for (String line : decryptedContent.split("\n")) {
if (line.startsWith("otpauth://hotp/")) {
return Long.parseLong(Uri.parse(line).getQueryParameter("counter"));
}
}
return null;
}
private String findExtraContent(String [] passContent) {
String extraContent = passContent.length > 1 ? passContent[1] : "";
// if there is a HOTP URI, we must return the extra content with the counter incremented
if (hasHotp()) {
return extraContent.replaceFirst("counter=[0-9]+", "counter=" + Long.toString(hotpCounter));
}
return extraContent;
}
}
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