--- /dev/null
+package club.wpia.gigi.pages.account.certs;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.security.GeneralSecurityException;
+import java.security.PublicKey;
+import java.security.interfaces.DSAPublicKey;
+import java.security.interfaces.ECPublicKey;
+import java.security.interfaces.RSAPublicKey;
+import java.util.Base64;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.Set;
+import java.util.TreeSet;
+
+import club.wpia.gigi.GigiApiException;
+import club.wpia.gigi.crypto.SPKAC;
+import club.wpia.gigi.dbObjects.Certificate;
+import club.wpia.gigi.dbObjects.CertificateOwner;
+import club.wpia.gigi.dbObjects.CertificateProfile;
+import club.wpia.gigi.dbObjects.Digest;
+import club.wpia.gigi.dbObjects.Group;
+import club.wpia.gigi.dbObjects.Organisation;
+import club.wpia.gigi.dbObjects.User;
+import club.wpia.gigi.dbObjects.Certificate.CSRType;
+import club.wpia.gigi.dbObjects.Certificate.SANType;
+import club.wpia.gigi.dbObjects.Certificate.SubjectAlternateName;
+import club.wpia.gigi.dbObjects.CertificateProfile.PropertyTemplate;
+import club.wpia.gigi.output.template.SprintfCommand;
+import club.wpia.gigi.util.AuthorizationContext;
+import club.wpia.gigi.util.CAA;
+import club.wpia.gigi.util.DomainAssessment;
+import club.wpia.gigi.util.PEM;
+import club.wpia.gigi.util.RateLimit;
+import sun.security.pkcs.PKCS9Attribute;
+import sun.security.pkcs10.PKCS10;
+import sun.security.pkcs10.PKCS10Attribute;
+import sun.security.pkcs10.PKCS10Attributes;
+import sun.security.util.DerInputStream;
+import sun.security.util.DerValue;
+import sun.security.util.ObjectIdentifier;
+import sun.security.x509.AVA;
+import sun.security.x509.AlgorithmId;
+import sun.security.x509.CertificateExtensions;
+import sun.security.x509.DNSName;
+import sun.security.x509.ExtendedKeyUsageExtension;
+import sun.security.x509.Extension;
+import sun.security.x509.GeneralName;
+import sun.security.x509.GeneralNameInterface;
+import sun.security.x509.GeneralNames;
+import sun.security.x509.PKIXExtensions;
+import sun.security.x509.RDN;
+import sun.security.x509.RFC822Name;
+import sun.security.x509.SubjectAlternativeNameExtension;
+import sun.security.x509.X500Name;
+
+public class CertificateRequest {
+
+ public static final String DEFAULT_CN = "SomeCA User";
+
+ public static final ObjectIdentifier OID_KEY_USAGE_SSL_SERVER = ObjectIdentifier.newInternal(new int[] {
+ 1, 3, 6, 1, 5, 5, 7, 3, 1
+ });
+
+ public static final ObjectIdentifier OID_KEY_USAGE_SSL_CLIENT = ObjectIdentifier.newInternal(new int[] {
+ 1, 3, 6, 1, 5, 5, 7, 3, 2
+ });
+
+ public static final ObjectIdentifier OID_KEY_USAGE_CODESIGN = ObjectIdentifier.newInternal(new int[] {
+ 1, 3, 6, 1, 5, 5, 7, 3, 3
+ });
+
+ public static final ObjectIdentifier OID_KEY_USAGE_EMAIL_PROTECTION = ObjectIdentifier.newInternal(new int[] {
+ 1, 3, 6, 1, 5, 5, 7, 3, 4
+ });
+
+ public static final ObjectIdentifier OID_KEY_USAGE_TIMESTAMP = ObjectIdentifier.newInternal(new int[] {
+ 1, 3, 6, 1, 5, 5, 7, 3, 8
+ });
+
+ public static final ObjectIdentifier OID_KEY_USAGE_OCSP = ObjectIdentifier.newInternal(new int[] {
+ 1, 3, 6, 1, 5, 5, 7, 3, 9
+ });
+
+ private CSRType csrType;
+
+ private final PublicKey pk;
+
+ private String csr;
+
+ public String name = DEFAULT_CN;
+
+ private Set<SubjectAlternateName> SANs;
+
+ private Digest selectedDigest = Digest.getDefault();
+
+ private CertificateProfile profile = CertificateProfile.getById(1);
+
+ private String ou = "";
+
+ private AuthorizationContext ctx;
+
+ private String pDNS, pMail;
+
+ public CertificateRequest(AuthorizationContext c, String csr) throws IOException, GeneralSecurityException, GigiApiException {
+ this(c, csr, (CertificateProfile) null);
+ }
+
+ public CertificateRequest(AuthorizationContext ctx, String csr, CertificateProfile cp) throws GeneralSecurityException, IOException, IOException {
+ this.ctx = ctx;
+ if (cp != null) {
+ profile = cp;
+ } else if (ctx.getActor().getAssurancePoints() > 50) {
+ profile = CertificateProfile.getByName("client-a");
+ }
+ byte[] data = PEM.decode("(NEW )?CERTIFICATE REQUEST", csr);
+ PKCS10 parsed = new PKCS10(data);
+ PKCS10Attributes atts = parsed.getAttributes();
+
+ TreeSet<SubjectAlternateName> SANs = new TreeSet<>();
+ for (RDN r : parsed.getSubjectName().rdns()) {
+ for (AVA a : r.avas()) {
+ if (a.getObjectIdentifier().equals((Object) PKCS9Attribute.EMAIL_ADDRESS_OID)) {
+ SANs.add(new SubjectAlternateName(SANType.EMAIL, a.getValueString()));
+ } else if (a.getObjectIdentifier().equals((Object) X500Name.commonName_oid)) {
+ String value = a.getValueString();
+ if (value.contains(".") && !value.contains(" ")) {
+ SANs.add(new SubjectAlternateName(SANType.DNS, value));
+ } else {
+ name = value;
+ }
+ } else if (a.getObjectIdentifier().equals((Object) PKIXExtensions.SubjectAlternativeName_Id)) {
+ // TODO? parse invalid SANs
+ }
+ }
+ }
+
+ for (PKCS10Attribute b : atts.getAttributes()) {
+
+ if ( !b.getAttributeId().equals((Object) PKCS9Attribute.EXTENSION_REQUEST_OID)) {
+ // unknown attrib
+ continue;
+ }
+
+ for (Extension c : ((CertificateExtensions) b.getAttributeValue()).getAllExtensions()) {
+ if (c instanceof SubjectAlternativeNameExtension) {
+
+ SubjectAlternativeNameExtension san = (SubjectAlternativeNameExtension) c;
+ GeneralNames obj = san.get(SubjectAlternativeNameExtension.SUBJECT_NAME);
+ for (int i = 0; i < obj.size(); i++) {
+ GeneralName generalName = obj.get(i);
+ GeneralNameInterface peeled = generalName.getName();
+ if (peeled instanceof DNSName) {
+ SANs.add(new SubjectAlternateName(SANType.DNS, ((DNSName) peeled).getName()));
+ } else if (peeled instanceof RFC822Name) {
+ SANs.add(new SubjectAlternateName(SANType.EMAIL, ((RFC822Name) peeled).getName()));
+ }
+ }
+ } else if (c instanceof ExtendedKeyUsageExtension) {
+ ExtendedKeyUsageExtension ekue = (ExtendedKeyUsageExtension) c;
+ String appendix = "";
+ if (ctx.getActor().getAssurancePoints() >= 50) {
+ appendix = "-a";
+ }
+ for (String s : ekue.getExtendedKeyUsage()) {
+ if (s.equals(OID_KEY_USAGE_SSL_SERVER.toString())) {
+ // server
+ profile = CertificateProfile.getByName("server" + appendix);
+ } else if (s.equals(OID_KEY_USAGE_SSL_CLIENT.toString())) {
+ // client
+ profile = CertificateProfile.getByName("client" + appendix);
+ } else if (s.equals(OID_KEY_USAGE_CODESIGN.toString())) {
+ // code sign
+ } else if (s.equals(OID_KEY_USAGE_EMAIL_PROTECTION.toString())) {
+ // emailProtection
+ profile = CertificateProfile.getByName("mail" + appendix);
+ } else if (s.equals(OID_KEY_USAGE_TIMESTAMP.toString())) {
+ // timestamp
+ } else if (s.equals(OID_KEY_USAGE_OCSP.toString())) {
+ // OCSP
+ }
+ }
+ } else {
+ // Unknown requested extension
+ }
+ }
+
+ }
+ this.SANs = SANs;
+ pk = parsed.getSubjectPublicKeyInfo();
+ String sign = getSignatureAlgorithm(data);
+ guessDigest(sign);
+
+ this.csr = csr;
+ this.csrType = CSRType.CSR;
+ }
+
+ public CertificateRequest(AuthorizationContext ctx, String spkac, String spkacChallenge) throws IOException, GigiApiException, GeneralSecurityException {
+ this.ctx = ctx;
+ String cleanedSPKAC = spkac.replaceAll("[\r\n]", "");
+ byte[] data = Base64.getDecoder().decode(cleanedSPKAC);
+ SPKAC parsed = new SPKAC(data);
+ if ( !parsed.getChallenge().equals(spkacChallenge)) {
+ throw new GigiApiException("Challenge mismatch");
+ }
+ pk = parsed.getPubkey();
+ String sign = getSignatureAlgorithm(data);
+ guessDigest(sign);
+ this.SANs = new HashSet<>();
+ this.csr = "SPKAC=" + cleanedSPKAC;
+ this.csrType = CSRType.SPKAC;
+
+ }
+
+ private static String getSignatureAlgorithm(byte[] data) throws IOException {
+ DerInputStream in = new DerInputStream(data);
+ DerValue[] seq = in.getSequence(3);
+ return AlgorithmId.parse(seq[1]).getName();
+ }
+
+ private void guessDigest(String sign) {
+ if (sign.toLowerCase().startsWith("sha512")) {
+ selectedDigest = Digest.SHA512;
+ } else if (sign.toLowerCase().startsWith("sha384")) {
+ selectedDigest = Digest.SHA384;
+ } else if (sign.toLowerCase().startsWith("sha256")) {
+ selectedDigest = Digest.SHA256;
+ }
+ }
+
+ public void checkKeyStrength(PrintWriter out) {
+ out.println("Type: " + pk.getAlgorithm() + "<br/>");
+ if (pk instanceof RSAPublicKey) {
+ out.println("Exponent: " + ((RSAPublicKey) pk).getPublicExponent() + "<br/>");
+ out.println("Length: " + ((RSAPublicKey) pk).getModulus().bitLength());
+ } else if (pk instanceof DSAPublicKey) {
+ DSAPublicKey dpk = (DSAPublicKey) pk;
+ out.println("Length: " + dpk.getY().bitLength() + "<br/>");
+ out.println(dpk.getParams());
+ } else if (pk instanceof ECPublicKey) {
+ ECPublicKey epk = (ECPublicKey) pk;
+ out.println("Length-x: " + epk.getW().getAffineX().bitLength() + "<br/>");
+ out.println("Length-y: " + epk.getW().getAffineY().bitLength() + "<br/>");
+ out.println(epk.getParams().getCurve());
+ }
+ }
+
+ private Set<SubjectAlternateName> parseSANBox(String SANs) {
+ String[] SANparts = SANs.split("[\r\n]+|, *");
+ Set<SubjectAlternateName> parsedNames = new LinkedHashSet<>();
+ for (String SANline : SANparts) {
+ String[] parts = SANline.split(":", 2);
+ if (parts.length == 1) {
+ if (parts[0].trim().equals("")) {
+ continue;
+ }
+ if (parts[0].contains("@")) {
+ parsedNames.add(new SubjectAlternateName(SANType.EMAIL, parts[0]));
+ } else {
+ parsedNames.add(new SubjectAlternateName(SANType.DNS, parts[0]));
+ }
+ continue;
+ }
+ try {
+ SANType t = Certificate.SANType.valueOf(parts[0].toUpperCase().trim());
+ if (t == null) {
+ continue;
+ }
+ parsedNames.add(new SubjectAlternateName(t, parts[1].trim()));
+ } catch (IllegalArgumentException e) {
+ // invalid enum type
+ continue;
+ }
+ }
+ return parsedNames;
+ }
+
+ public Set<SubjectAlternateName> getSANs() {
+ return SANs;
+ }
+
+ public String getName() {
+ return name;
+ }
+
+ public synchronized String getOu() {
+ if (ctx.getTarget() instanceof Organisation) {
+ return ou;
+ }
+ throw new IllegalStateException();
+ }
+
+ public Digest getSelectedDigest() {
+ return selectedDigest;
+ }
+
+ public CertificateProfile getProfile() {
+ return profile;
+ }
+
+ public synchronized boolean update(String nameIn, String hashAlg, String profileStr, String newOrgStr, String ou, String SANsStr) throws GigiApiException {
+ GigiApiException error = new GigiApiException();
+ this.name = nameIn;
+ if (hashAlg != null) {
+ selectedDigest = Digest.valueOf(hashAlg);
+ }
+ this.profile = CertificateProfile.getByName(profileStr);
+ if (ctx.getTarget() instanceof Organisation) {
+ this.ou = ou;
+ }
+
+ if ( !this.profile.canBeIssuedBy(ctx.getTarget(), ctx.getActor())) {
+ this.profile = CertificateProfile.getById(1);
+ error.mergeInto(new GigiApiException("Certificate Profile is invalid."));
+ throw error;
+ }
+
+ verifySANs(error, profile, parseSANBox(SANsStr), ctx.getTarget(), ctx.getActor());
+
+ if ( !error.isEmpty()) {
+ throw error;
+ }
+ return true;
+ }
+
+ private void verifySANs(GigiApiException error, CertificateProfile p, Set<SubjectAlternateName> sANs2, CertificateOwner owner, User user) {
+ Set<SubjectAlternateName> filteredSANs = new LinkedHashSet<>();
+ PropertyTemplate domainTemp = p.getTemplates().get("domain");
+ PropertyTemplate emailTemp = p.getTemplates().get("email");
+ pDNS = null;
+ pMail = null;
+ for (SubjectAlternateName san : sANs2) {
+ if (san.getType() == SANType.DNS) {
+ if (domainTemp != null && owner.isValidDomain(san.getName())) {
+ boolean valid;
+ try {
+ DomainAssessment.checkCertifiableDomain(san.getName(), user.isInGroup(Group.CODESIGNING), false);
+ valid = true;
+ if ( !valid || !CAA.verifyDomainAccess(owner, p, san.getName()) || (pDNS != null && !domainTemp.isMultiple())) {
+ // remove
+ } else {
+ if (pDNS == null) {
+ pDNS = san.getName();
+ }
+ filteredSANs.add(san);
+ continue;
+ }
+ } catch (GigiApiException e) {
+ error.mergeInto(e);
+ valid = false;
+ }
+ }
+ } else if (san.getType() == SANType.EMAIL) {
+ if (emailTemp != null && owner.isValidEmail(san.getName())) {
+ if (pMail != null && !emailTemp.isMultiple()) {
+ // remove
+ } else {
+ if (pMail == null) {
+ pMail = san.getName();
+ }
+ filteredSANs.add(san);
+ continue;
+ }
+ }
+ }
+ error.mergeInto(new GigiApiException(SprintfCommand.createSimple(//
+ "The requested subject alternate name (SAN) \"{0}\" has been removed.", san.getType().toString().toLowerCase() + ":" + san.getName())));
+ }
+ SANs = filteredSANs;
+ }
+
+ // domain email name name=WoTUser orga
+ public synchronized Certificate draft() throws GigiApiException {
+
+ GigiApiException error = new GigiApiException();
+
+ HashMap<String, String> subject = new HashMap<>();
+ PropertyTemplate domainTemp = profile.getTemplates().get("domain");
+ PropertyTemplate emailTemp = profile.getTemplates().get("email");
+ PropertyTemplate nameTemp = profile.getTemplates().get("name");
+ PropertyTemplate wotUserTemp = profile.getTemplates().get("name=WoTUser");
+ verifySANs(error, profile, SANs, ctx.getTarget(), ctx.getActor());
+
+ // Ok, let's determine the CN
+ // the CN is
+ // 1. the user's "real name", iff the real name is to be included i.e.
+ // not empty (name), or to be forced to WOTUser
+
+ // 2. the user's "primary domain", iff "1." doesn't match and there is a
+ // primary domain. (domainTemp != null)
+
+ String verifiedCN = null;
+ if (ctx.getTarget() instanceof Organisation) {
+ if ( !name.equals("")) {
+ verifiedCN = name;
+ }
+ } else {
+ verifiedCN = verifyName(error, nameTemp, wotUserTemp, verifiedCN);
+ }
+ if (pDNS == null && domainTemp != null && domainTemp.isRequired()) {
+ error.mergeInto(new GigiApiException("Server Certificates require a DNS name."));
+ } else if (domainTemp != null && verifiedCN == null) {
+ // user may add domains
+ verifiedCN = pDNS;
+ }
+ if (verifiedCN != null) {
+ subject.put("CN", verifiedCN);
+ }
+
+ if (pMail != null) {
+ if (emailTemp != null) {
+ subject.put("EMAIL", pMail);
+ } else {
+ // verify SANs should prevent this
+ pMail = null;
+ error.mergeInto(new GigiApiException("You may not include an email in this certificate."));
+ }
+ } else {
+ if (emailTemp != null && emailTemp.isRequired()) {
+ error.mergeInto(new GigiApiException("You need to include an email in this certificate."));
+ }
+ }
+
+ if (ctx.getTarget() instanceof Organisation) {
+ Organisation org = (Organisation) ctx.getTarget();
+ subject.put("O", org.getName());
+ subject.put("C", org.getCountry().getCode());
+ subject.put("ST", org.getProvince());
+ subject.put("L", org.getCity());
+ if (ou != null) {
+ subject.put("OU", ou);
+ }
+ }
+ System.out.println(subject);
+ if ( !error.isEmpty()) {
+ throw error;
+ }
+ try {
+ if (RATE_LIMIT.isLimitExceeded(Integer.toString(ctx.getActor().getId()))) {
+ throw new GigiApiException("Rate Limit Exceeded");
+ }
+ return new Certificate(ctx.getTarget(), ctx.getActor(), subject, selectedDigest, //
+ this.csr, this.csrType, profile, SANs.toArray(new SubjectAlternateName[SANs.size()]));
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ return null;
+ }
+
+ // 100 per 10 minutes
+ public static final RateLimit RATE_LIMIT = new RateLimit(100, 10 * 60 * 1000);
+
+ private String verifyName(GigiApiException error, PropertyTemplate nameTemp, PropertyTemplate wotUserTemp, String verifiedCN) {
+ // real names,
+ // possible configurations: name {y,null,?}, name=WoTUser {y,null}
+ // semantics:
+ // y * -> real
+ // null y -> default
+ // null null -> null
+ // ? y -> real, default
+ // ? null -> real, default, null
+ boolean realIsOK = false;
+ boolean nullIsOK = false;
+ boolean defaultIsOK = false;
+ if (wotUserTemp != null && ( !wotUserTemp.isRequired() || wotUserTemp.isMultiple())) {
+ error.mergeInto(new GigiApiException("Internal configuration error detected."));
+ }
+ if (nameTemp != null && nameTemp.isRequired() && !nameTemp.isMultiple()) {
+ realIsOK = true;
+ } else if (nameTemp == null) {
+ defaultIsOK = wotUserTemp != null;
+ nullIsOK = !defaultIsOK;
+ } else if (nameTemp != null && !nameTemp.isRequired() && !nameTemp.isMultiple()) {
+ realIsOK = true;
+ defaultIsOK = true;
+ nullIsOK = wotUserTemp == null;
+ } else {
+ error.mergeInto(new GigiApiException("Internal configuration error detected."));
+ }
+ if (ctx.getTarget() instanceof User) {
+ User u = (User) ctx.getTarget();
+ if (name != null && u.isValidName(name)) {
+ if (realIsOK) {
+ verifiedCN = name;
+ } else {
+ error.mergeInto(new GigiApiException("Your real name is not allowed in this certificate."));
+ if (defaultIsOK) {
+ name = DEFAULT_CN;
+ } else if (nullIsOK) {
+ name = "";
+ }
+ }
+ } else if (name != null && name.equals(DEFAULT_CN)) {
+ if (defaultIsOK) {
+ verifiedCN = name;
+ } else {
+ error.mergeInto(new GigiApiException("The default name is not allowed in this certificate."));
+ if (nullIsOK) {
+ name = "";
+ } else if (realIsOK) {
+ name = u.getPreferredName().toString();
+ }
+ }
+ } else if (name == null || name.equals("")) {
+ if (nullIsOK) {
+ verifiedCN = "";
+ } else {
+ error.mergeInto(new GigiApiException("A name is required in this certificate."));
+ if (defaultIsOK) {
+ name = DEFAULT_CN;
+ } else if (realIsOK) {
+ name = u.getPreferredName().toString();
+ }
+ }
+ } else {
+ error.mergeInto(new GigiApiException("The name you entered was invalid."));
+
+ }
+ if (wotUserTemp != null) {
+ if ( !wotUserTemp.isRequired() || wotUserTemp.isMultiple()) {
+ error.mergeInto(new GigiApiException("Internal configuration error detected."));
+ }
+ if ( !name.equals(DEFAULT_CN)) {
+ name = DEFAULT_CN;
+ error.mergeInto(new GigiApiException("You may not change the name for this certificate type."));
+ } else {
+ verifiedCN = DEFAULT_CN;
+ }
+
+ } else {
+ if (nameTemp != null) {
+ if (name.equals("")) {
+ if (nameTemp.isRequired()) {
+ // nothing, but required
+ name = DEFAULT_CN;
+ error.mergeInto(new GigiApiException("No name entered, but one was required."));
+ } else {
+ // nothing and not required
+
+ }
+ } else if (u.isValidName(name)) {
+ verifiedCN = name;
+ } else {
+ if (nameTemp.isRequired()) {
+ error.mergeInto(new GigiApiException("The name entered, does not match the details in your account. You cannot issue certificates with this name. Enter a name that matches the one that has been verified in your account, because a name is required for this certificate type."));
+ } else if (name.equals(DEFAULT_CN)) {
+ verifiedCN = DEFAULT_CN;
+ } else {
+ name = DEFAULT_CN;
+ error.mergeInto(new GigiApiException("The name entered, does not match the details in your account. You cannot issue certificates with this name. Enter a name that matches the one that has been verified in your account or keep the default name."));
+ }
+ }
+ } else {
+ if ( !name.equals("")) {
+ name = "";
+ error.mergeInto(new GigiApiException("No real name is included in this certificate. The real name, you entered will be ignored."));
+ }
+ }
+ }
+ } else {
+ if (realIsOK) {
+ verifiedCN = name;
+ } else {
+ verifiedCN = "";
+ name = "";
+ error.mergeInto(new GigiApiException("No real name is included in this certificate. The real name, you entered will be ignored."));
+ }
+ }
+
+ return verifiedCN;
+ }
+}
projects / gigi.git / blobdiff