[288126d] | 1 | package ve.gob.cenditel.tibisaymovil; |
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| 2 | |
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| 3 | import java.io.FileNotFoundException; |
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| 4 | import java.io.IOException; |
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| 5 | import java.io.InputStream; |
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| 6 | import java.security.KeyStore; |
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| 7 | import java.security.KeyStore.PrivateKeyEntry; |
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| 8 | import java.security.KeyStoreException; |
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| 9 | import java.security.NoSuchAlgorithmException; |
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| 10 | import java.security.PrivateKey; |
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| 11 | import java.security.cert.Certificate; |
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| 12 | import java.security.cert.CertificateException; |
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| 13 | import java.security.cert.X509Certificate; |
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| 14 | import java.util.Enumeration; |
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| 15 | |
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| 16 | |
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| 17 | import android.app.Activity; |
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| 18 | import android.content.Context; |
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| 19 | import android.content.DialogInterface; |
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| 20 | import android.net.Uri; |
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| 21 | import android.util.Log; |
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| 22 | import android.view.View; |
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| 23 | import android.view.ViewGroup; |
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| 24 | import android.widget.LinearLayout; |
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| 25 | import android.widget.ListView; |
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| 26 | import android.widget.TextView; |
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| 27 | import android.widget.Toast; |
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| 28 | |
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| 29 | public class DirectKeyChain { |
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| 30 | |
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| 31 | private static final long serialVersionUID = 5677500714263795351L; |
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| 32 | |
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| 33 | private static final String keyStoreType = "BCPKCS12"; |
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| 34 | static final String keyStoreFilename = ".keystore"; |
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| 35 | private static KeyStore keystore = null; |
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| 36 | private static String password = null; |
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| 37 | |
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| 38 | |
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| 39 | private static DirectKeyChain theInstance; |
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| 40 | |
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| 41 | private Activity master; |
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| 42 | |
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| 43 | private boolean buttonsKeyStoreStatus; |
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| 44 | |
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| 45 | public boolean isButtonsKeyStoreStatus() { |
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| 46 | return buttonsKeyStoreStatus; |
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| 47 | } |
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| 48 | |
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| 49 | public void setButtonsKeyStoreStatus(boolean buttonsKeyStoreStatus) { |
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| 50 | this.buttonsKeyStoreStatus = buttonsKeyStoreStatus; |
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| 51 | } |
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| 52 | |
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| 53 | |
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| 54 | private ListView listView; |
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| 55 | |
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| 56 | public DirectCertificateAdapter adapter; |
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| 57 | |
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| 58 | // private MainBarClickListener mainbar; |
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| 59 | |
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| 60 | private DirectKeyChain() { |
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| 61 | } |
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| 62 | |
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| 63 | private DirectKeyChain(Activity master) { |
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| 64 | this.master=master; |
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| 65 | } |
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| 66 | |
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| 67 | public void setMasterActivity(Activity master){this.master=master;} |
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| 68 | |
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| 69 | |
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| 70 | public static DirectKeyChain getInstance() { |
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| 71 | |
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| 72 | if (DirectKeyChain.theInstance == null) { |
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| 73 | |
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| 74 | DirectKeyChain.theInstance = new DirectKeyChain(); |
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| 75 | } |
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| 76 | return (DirectKeyChain) DirectKeyChain.theInstance; |
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| 77 | } |
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| 78 | |
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| 79 | public void choosePrivateKeyAlias() { |
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| 80 | |
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| 81 | if (!keystoreExists()) { |
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| 82 | createKeystoreAndChoosePrivateKeyAlias(); |
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| 83 | } else { |
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| 84 | if (DirectKeyChain.keystore == null) { |
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| 85 | openKeystoreAndChoosePrivateKeyAlias(); |
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| 86 | } else { |
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| 87 | startKeyChainActivityAndChoosePrivateKeyAlias(); |
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| 88 | } |
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| 89 | } |
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| 90 | |
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| 91 | } |
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| 92 | |
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| 93 | public void openOrCreateKeyAlias() { |
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| 94 | |
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| 95 | DirectKeyChain.keystore=null; |
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| 96 | choosePrivateKeyAlias(); |
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| 97 | |
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| 98 | } |
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| 99 | |
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| 100 | public X509Certificate[] getCertificateChain(String alias) |
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| 101 | throws KeystoreException { |
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| 102 | |
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| 103 | checkKeystoreOpen(); |
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| 104 | try { |
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| 105 | KeyStore trusted = getKeystore(); |
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| 106 | Certificate[] chain = trusted.getCertificateChain(alias); |
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| 107 | X509Certificate[] result = new X509Certificate[chain.length]; |
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| 108 | for(int i = 0; i < chain.length; i++) { |
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| 109 | // Casting chain to X509Certificate[] seems to be not enough |
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| 110 | result[i] = (X509Certificate) chain[i]; |
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| 111 | } |
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| 112 | return result; |
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| 113 | } catch (Exception e) { |
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| 114 | throw new KeystoreException(e); |
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| 115 | } |
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| 116 | } |
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| 117 | |
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| 118 | public PrivateKey getPrivateKey(String alias) |
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| 119 | throws KeystoreException { |
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| 120 | |
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| 121 | checkKeystoreOpen(); |
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| 122 | try { |
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| 123 | KeyStore trusted = getKeystore(); |
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| 124 | return ((PrivateKeyEntry) trusted.getEntry(alias, null)).getPrivateKey(); |
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| 125 | } catch (Exception e) { |
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| 126 | throw new KeystoreException(e); |
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| 127 | } |
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| 128 | } |
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| 129 | |
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| 130 | |
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| 131 | |
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| 132 | public int deleteCertificate(String alias) throws KeystoreException{ |
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| 133 | |
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| 134 | try { |
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| 135 | KeyStore trusted = getKeystore(); |
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| 136 | trusted.deleteEntry(alias); |
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| 137 | } catch (Exception e) { |
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| 138 | throw new KeystoreException(e); |
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| 139 | } |
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| 140 | |
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| 141 | if (this.adapter!=null)this.adapter.notifyDataSetChanged(); |
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| 142 | return 0; |
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| 143 | |
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| 144 | } |
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| 145 | |
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| 146 | |
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| 147 | |
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| 148 | public Enumeration<String> getAliases() |
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| 149 | throws KeystoreException { |
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| 150 | |
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| 151 | try { |
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| 152 | KeyStore trusted = getKeystore(); |
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| 153 | return new PrivateKeyEnumeration(trusted); |
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| 154 | } catch (KeyStoreException e) { |
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| 155 | throw new KeystoreException(e); |
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| 156 | } |
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| 157 | } |
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| 158 | |
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| 159 | public int importCertificate(Uri file, String password) |
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| 160 | throws KeystoreException { |
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| 161 | |
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| 162 | try { |
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| 163 | KeyStore trusted = getKeystore(); |
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| 164 | KeyStore p12 = KeyStore.getInstance("PKCS12"); |
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| 165 | InputStream stream = this.master.getContentResolver().openInputStream(file); |
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| 166 | p12.load(stream, password.toCharArray()); |
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| 167 | stream.close(); |
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| 168 | Enumeration<String> aliases = p12.aliases(); |
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| 169 | int imported = 0; |
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| 170 | while (aliases.hasMoreElements()) { |
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| 171 | String alias = aliases.nextElement(); |
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| 172 | if (p12.isKeyEntry(alias)) { |
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| 173 | Certificate[] chain = p12.getCertificateChain(alias); |
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| 174 | for (Certificate cert : chain) { |
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| 175 | if (!(cert instanceof X509Certificate)) { |
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| 176 | throw new KeyStoreException(); |
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| 177 | } |
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| 178 | } |
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| 179 | // TODO allow to import with a diferent alias. Warn if alias already exists |
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| 180 | trusted.setKeyEntry(alias, p12.getKey(alias, null), null, chain); |
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| 181 | imported++; |
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| 182 | } |
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| 183 | } |
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| 184 | return imported; |
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| 185 | } catch (Exception e) { |
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| 186 | IncorrectPasswordException.checkException(e); |
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| 187 | throw new KeystoreException(e); |
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| 188 | } |
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| 189 | } |
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| 190 | |
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| 191 | public void saveKeystore() |
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| 192 | throws KeystoreException, OutOfSpaceError { |
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| 193 | |
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| 194 | saveKeystore(DirectKeyChain.password); |
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| 195 | } |
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| 196 | |
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| 197 | public void saveKeystore(String password) |
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| 198 | throws KeystoreException, OutOfSpaceError { |
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| 199 | |
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| 200 | try { |
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| 201 | KeyStore trusted = getKeystore(); |
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| 202 | trusted.store( |
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| 203 | this.master.openFileOutput(DirectKeyChain.keyStoreFilename, Context.MODE_PRIVATE), |
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| 204 | password.toCharArray()); |
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| 205 | DirectKeyChain.password = password; |
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| 206 | } catch (Exception e) { |
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| 207 | FsUtils.checkOutOfSpace(e, false); |
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| 208 | throw new KeystoreException(e); |
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| 209 | } |
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| 210 | } |
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| 211 | |
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| 212 | private KeyStore newKeystore() |
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| 213 | throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException { |
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| 214 | |
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| 215 | DirectKeyChain.keystore = KeyStore.getInstance(DirectKeyChain.keyStoreType); |
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| 216 | DirectKeyChain.keystore.load(null); |
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| 217 | return DirectKeyChain.keystore; |
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| 218 | } |
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| 219 | |
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| 220 | private KeyStore getKeystore() |
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| 221 | throws KeystoreException { |
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| 222 | |
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| 223 | return getKeystore(DirectKeyChain.password); |
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| 224 | } |
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| 225 | |
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| 226 | private KeyStore getKeystore(String password) |
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| 227 | throws KeystoreException { |
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| 228 | |
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| 229 | if (DirectKeyChain.keystore == null) { |
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| 230 | try { |
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| 231 | if (keystoreExists()) { |
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| 232 | DirectKeyChain.keystore = KeyStore.getInstance(DirectKeyChain.keyStoreType); |
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| 233 | DirectKeyChain.keystore.load(this.master.openFileInput( |
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| 234 | DirectKeyChain.keyStoreFilename), password.toCharArray()); |
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| 235 | } else { |
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| 236 | newKeystore(); |
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| 237 | } |
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| 238 | DirectKeyChain.password = password; |
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| 239 | } catch (Exception e) { |
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| 240 | DirectKeyChain.password=null; |
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| 241 | DirectKeyChain.keystore=null; |
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| 242 | if (IncorrectPasswordException.checkException(e)) { |
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| 243 | |
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| 244 | throw new IncorrectPasswordException(e); |
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| 245 | } |
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| 246 | throw new KeystoreException(e); |
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| 247 | } |
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| 248 | } |
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| 249 | |
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| 250 | return DirectKeyChain.keystore; |
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| 251 | } |
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| 252 | |
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| 253 | private KeyStore reloadKeyStore(){ |
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| 254 | //TODO |
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| 255 | if (DirectKeyChain.keystore!=null && DirectKeyChain.password!=null){ |
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| 256 | try { |
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| 257 | DirectKeyChain.keystore = KeyStore.getInstance(DirectKeyChain.keyStoreType); |
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| 258 | DirectKeyChain.keystore.load(this.master.openFileInput( |
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| 259 | DirectKeyChain.keyStoreFilename), password.toCharArray()); |
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| 260 | } catch (KeyStoreException e) {} |
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| 261 | catch (CertificateException e) {} |
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| 262 | catch (FileNotFoundException e) {} |
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| 263 | catch (NoSuchAlgorithmException e) {} |
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| 264 | catch (IOException e) {} |
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| 265 | |
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| 266 | |
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| 267 | } |
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| 268 | else{} |
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| 269 | return DirectKeyChain.keystore; |
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| 270 | |
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| 271 | } |
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| 272 | |
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| 273 | |
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| 274 | private boolean keystoreExists() { |
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| 275 | |
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| 276 | return this.master.getFileStreamPath(DirectKeyChain.keyStoreFilename).exists(); |
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| 277 | } |
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| 278 | |
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| 279 | private void checkKeystoreOpen() throws KeystoreException { |
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| 280 | if (DirectKeyChain.keystore == null) { |
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| 281 | throw new KeystoreException("Neeed to open the keystore first"); |
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| 282 | } |
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| 283 | } |
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| 284 | |
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| 285 | public void createKeystoreAndChoosePrivateKeyAlias() { |
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| 286 | final PasswordConfirmationDialog dialog = |
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| 287 | new PasswordConfirmationDialog(this.master, R.string.keystore_create_password); |
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| 288 | dialog.setAcceptListener(new DirectKeyChainAcceptListener(dialog, this.master)); |
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| 289 | |
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| 290 | dialog.show(); |
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| 291 | } |
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| 292 | |
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| 293 | private void openKeystoreAndChoosePrivateKeyAlias() { |
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| 294 | |
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| 295 | final PasswordDialog dialog = |
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| 296 | new PasswordDialog(this.master, R.string.keystore_password, true); |
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| 297 | dialog.setAcceptListener(new DirectKeyChainOpenListener(dialog, this.master)); |
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| 298 | dialog.setRecreateListener(new DialogInterface.OnClickListener() { |
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| 299 | |
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| 300 | @Override |
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| 301 | public void onClick(DialogInterface dialog, int which) { |
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| 302 | createKeystoreAndChoosePrivateKeyAlias(); |
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| 303 | } |
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| 304 | }); |
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| 305 | dialog.show(); |
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| 306 | } |
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| 307 | |
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| 308 | |
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| 309 | |
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| 310 | private void startKeyChainActivityAndChoosePrivateKeyAlias() { |
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| 311 | |
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| 312 | |
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| 313 | if (DirectKeyChain.password==null) |
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| 314 | this.choosePrivateKeyAlias(); |
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| 315 | |
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| 316 | DirectKeyChain.this.refreshAdapter(); |
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| 317 | /*Intent intent = new Intent(this.master, KeyChainActivity.class); |
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| 318 | this.master.startActivityForResult(intent, ActivityResult.PRIVATE_KEY_ALIAS);*/ |
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| 319 | } |
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| 320 | |
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| 321 | |
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| 322 | |
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| 323 | public ListView getListView() { |
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| 324 | return listView; |
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| 325 | } |
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| 326 | |
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| 327 | public void setListView(ListView listView) { |
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| 328 | this.listView = listView; |
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| 329 | } |
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| 330 | |
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| 331 | public void refreshAdapter(){ |
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| 332 | |
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| 333 | |
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| 334 | try { |
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| 335 | this.reloadKeyStore(); |
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| 336 | this.adapter = new DirectCertificateAdapter(DirectKeyChain.this, this.master); |
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| 337 | this.getListView().setAdapter(DirectKeyChain.this.adapter); |
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| 338 | |
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| 339 | } catch (KeystoreException e) { |
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| 340 | //DirectKeyChain.password=null; |
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| 341 | //DirectKeyChain.keystore=null; |
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| 342 | } |
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| 343 | |
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| 344 | |
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| 345 | } |
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| 346 | |
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| 347 | |
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| 348 | public class DirectKeyChainAcceptListener implements View.OnClickListener { |
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| 349 | |
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| 350 | private PasswordConfirmationDialog dialog; |
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| 351 | private Context context; |
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| 352 | |
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| 353 | public DirectKeyChainAcceptListener(PasswordConfirmationDialog dialog, Context context){ |
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| 354 | this.dialog=dialog; |
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| 355 | this.context=context; |
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| 356 | } |
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| 357 | |
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| 358 | @Override |
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| 359 | public void onClick(View v) { |
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| 360 | String newPassword = dialog.getPassword(); |
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| 361 | dialog.dismiss(); |
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| 362 | try { |
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| 363 | |
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| 364 | DirectKeyChain.this.newKeystore(); |
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| 365 | DirectKeyChain.this.saveKeystore(newPassword); |
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| 366 | DirectKeyChain.this.startKeyChainActivityAndChoosePrivateKeyAlias(); |
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| 367 | |
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| 368 | /******************** OJO********************/ |
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| 369 | // En este punto se muestran los elementos dentro del keystore |
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| 370 | /*********************************************/ |
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| 371 | Log.i("DEBUG", "Mostrar elementos1"); |
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| 372 | |
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| 373 | |
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| 374 | // if (DirectKeyChain.this.mainbar!=null) |
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| 375 | // DirectKeyChain.this.mainbar.prepareDisplayedChild(1); |
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| 376 | } catch (OutOfSpaceError e) { |
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| 377 | Toast.makeText(DirectKeyChain.this.master, R.string.error_no_space, Toast.LENGTH_LONG).show(); |
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| 378 | } catch (Exception e) { |
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| 379 | Toast.makeText(DirectKeyChain.this.master, R.string.error_unknown, Toast.LENGTH_LONG).show(); |
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| 380 | // throw new RuntimeException(e); |
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| 381 | } |
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| 382 | |
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| 383 | /*try { |
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| 384 | DirectKeyChain.this.getListView().setAdapter(new DirectCertificateAdapter(DirectKeyChain.this, this.context)); |
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| 385 | } catch (KeystoreException e) { |
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| 386 | |
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| 387 | }*/ |
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| 388 | DirectKeyChain.this.refreshAdapter(); |
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| 389 | } |
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| 390 | } |
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| 391 | |
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| 392 | |
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| 393 | public class DirectKeyChainOpenListener implements View.OnClickListener { |
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| 394 | |
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| 395 | private PasswordDialog dialog; |
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| 396 | private Context context; |
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| 397 | |
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| 398 | public DirectKeyChainOpenListener(PasswordDialog dialog, Context context){ |
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| 399 | this.dialog=dialog; |
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| 400 | this.context=context; |
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| 401 | } |
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| 402 | |
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| 403 | @Override |
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| 404 | public void onClick(View v) { |
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| 405 | String password = dialog.getPassword(); |
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| 406 | boolean ok = false; |
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| 407 | try { |
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| 408 | getKeystore(password); |
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| 409 | ok = true; |
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| 410 | } catch (IncorrectPasswordException e) { |
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| 411 | ok = false; |
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| 412 | DirectKeyChain.password=null; |
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| 413 | //DirectKeyChain.keystore=null; |
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| 414 | |
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| 415 | dialog.retry(); |
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| 416 | } catch (KeystoreException e) { |
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| 417 | //throw new RuntimeException(e); |
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| 418 | DirectKeyChain.password=null; |
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| 419 | DirectKeyChain.keystore=null; |
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| 420 | } |
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| 421 | if (ok) { |
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| 422 | DirectKeyChain.this.buttonsKeyStoreStatus = true; |
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| 423 | Log.i("DEBUG", "Mostrar elementos2"); |
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| 424 | dialog.dismiss(); |
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| 425 | startKeyChainActivityAndChoosePrivateKeyAlias(); |
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| 426 | } |
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| 427 | |
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| 428 | |
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| 429 | |
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| 430 | /*try { |
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| 431 | if (DirectKeyChain.this.adapter==null){ |
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| 432 | DirectKeyChain.this.adapter = new DirectCertificateAdapter(DirectKeyChain.this, this.context); |
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| 433 | DirectKeyChain.this.getListView().setAdapter(DirectKeyChain.this.adapter); |
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| 434 | } |
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| 435 | else{ |
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| 436 | DirectKeyChain.this.adapter.notifyDataSetChanged(); |
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| 437 | } |
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| 438 | } catch (KeystoreException e) { |
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| 439 | |
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| 440 | }*/ |
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| 441 | DirectKeyChain.this.refreshAdapter(); |
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| 442 | |
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| 443 | } |
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| 444 | } |
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| 445 | |
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| 446 | |
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| 447 | private static class PrivateKeyEnumeration implements Enumeration<String> { |
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| 448 | |
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| 449 | private KeyStore keystore; |
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| 450 | private Enumeration<String> aliases; |
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| 451 | private String next; |
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| 452 | |
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| 453 | public PrivateKeyEnumeration(KeyStore keystore) throws KeyStoreException { |
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| 454 | |
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| 455 | this.keystore = keystore; |
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| 456 | this.aliases = keystore.aliases(); |
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| 457 | this.next = lookForNextPrivateKeyAlias(); |
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| 458 | } |
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| 459 | |
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| 460 | private String lookForNextPrivateKeyAlias() throws KeyStoreException { |
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| 461 | |
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| 462 | while (this.aliases.hasMoreElements()) { |
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| 463 | String alias = this.aliases.nextElement(); |
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| 464 | if (this.keystore.entryInstanceOf(alias, KeyStore.PrivateKeyEntry.class)) { |
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| 465 | return alias; |
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| 466 | } |
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| 467 | } |
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| 468 | return null; |
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| 469 | } |
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| 470 | |
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| 471 | @Override |
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| 472 | public boolean hasMoreElements() { |
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| 473 | |
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| 474 | return this.next != null; |
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| 475 | } |
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| 476 | |
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| 477 | @Override |
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| 478 | public String nextElement() { |
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| 479 | |
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| 480 | String element = this.next; |
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| 481 | try { |
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| 482 | this.next = lookForNextPrivateKeyAlias(); |
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| 483 | } catch (KeyStoreException e) { |
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| 484 | //throw new RuntimeException(e); |
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| 485 | } |
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| 486 | return element; |
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| 487 | } |
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| 488 | } |
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| 489 | |
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| 490 | |
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| 491 | public boolean isPasswordCorrect() { |
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| 492 | return (DirectKeyChain.password!=null); |
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| 493 | } |
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| 494 | } |
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