diff options
Diffstat (limited to 'pki/base/util/src/netscape/security/x509/DirStrConverter.java')
| -rw-r--r-- | pki/base/util/src/netscape/security/x509/DirStrConverter.java | 246 |
1 files changed, 111 insertions, 135 deletions
diff --git a/pki/base/util/src/netscape/security/x509/DirStrConverter.java b/pki/base/util/src/netscape/security/x509/DirStrConverter.java index 261a909d..db1aaffe 100644 --- a/pki/base/util/src/netscape/security/x509/DirStrConverter.java +++ b/pki/base/util/src/netscape/security/x509/DirStrConverter.java @@ -25,174 +25,150 @@ import sun.io.CharToByteConverter; /** * A DirStrConverter converts a string to a DerValue of ASN.1 Directory String, - * which is a CHOICE of Printable (subset of ASCII), T.61 (Teletex) or - * Universal String (UCS-4), and vice versa. - * - * <p>The string to DerValue conversion is done as follows. - * If the string has only PrintableString characters it is converted - * to a ASN.1 Printable String using the PrintableString - * CharToByteConverter from the global default ASN1CharStrConvMap. - * If it has only characters covered in the PrintableString or T.61 - * character set it is converted to a ASN.1 T.61 string using the T.61 - * CharToByteConverter from the ASN1CharStrCovnMap. - * Otherwise it is converted to a ASN.1 UniversalString (UCS-4 character set) - * which covers all characters. - * + * which is a CHOICE of Printable (subset of ASCII), T.61 (Teletex) or Universal + * String (UCS-4), and vice versa. + * + * <p> + * The string to DerValue conversion is done as follows. If the string has only + * PrintableString characters it is converted to a ASN.1 Printable String using + * the PrintableString CharToByteConverter from the global default + * ASN1CharStrConvMap. If it has only characters covered in the PrintableString + * or T.61 character set it is converted to a ASN.1 T.61 string using the T.61 + * CharToByteConverter from the ASN1CharStrCovnMap. Otherwise it is converted to + * a ASN.1 UniversalString (UCS-4 character set) which covers all characters. + * * @see AVAValueConverter * @see ASN1CharStrConvMap - * + * * @author Lily Hsiao, Slava Galperin at Netscape Communications, Inc. */ - -public class DirStrConverter implements AVAValueConverter -{ +public class DirStrConverter implements AVAValueConverter { // public constructors /** * Constructs a DirStrConverter. */ - public DirStrConverter() - { + public DirStrConverter() { } // public functions /** * Converts a string to a DER encoded ASN1 Directory String, which is a - * CHOICE of PrintableString, T.61String or UniversalString. - * The string is taken as is i.e. should not be in Ldap DN string syntax. - * - * @param ds a string representing a directory string value. - * - * @return a DerValue - * - * @exception IOException if the string cannot be converted, such as - * when a UniversalString CharToByteConverter - * isn't available and the string contains - * characters covered only in the universal - * string (or UCS-4) character set. + * CHOICE of PrintableString, T.61String or UniversalString. The string is + * taken as is i.e. should not be in Ldap DN string syntax. + * + * @param ds a string representing a directory string value. + * + * @return a DerValue + * + * @exception IOException if the string cannot be converted, such as when a + * UniversalString CharToByteConverter isn't available and + * the string contains characters covered only in the + * universal string (or UCS-4) character set. */ - private static byte[] DefEncodingOrder = - new byte[] { - DerValue.tag_PrintableString, - DerValue.tag_T61String, - DerValue.tag_UniversalString - }; - - public static synchronized void - setDefEncodingOrder(byte[] defEncodingOrder) - { - DefEncodingOrder = defEncodingOrder; + private static byte[] DefEncodingOrder = new byte[] { + DerValue.tag_PrintableString, DerValue.tag_T61String, + DerValue.tag_UniversalString }; + + public static synchronized void setDefEncodingOrder(byte[] defEncodingOrder) { + DefEncodingOrder = defEncodingOrder; } - public DerValue getValue(String ds) - throws IOException - { - return getValue(ds, DefEncodingOrder); + public DerValue getValue(String ds) throws IOException { + return getValue(ds, DefEncodingOrder); } /** * Like getValue(String) with specified DER tags as encoding order. */ - public DerValue getValue(String ds, byte[] tags) - throws IOException - { - // try to convert to printable, then t61 the universal - - // i.e. from minimal to the most liberal. - - int ret = -1; - CharToByteConverter cbc; - DerValue value; - byte[] bbuf, derBuf; - int i; - - if (tags == null || tags.length == 0) - tags = DefEncodingOrder; - - bbuf = new byte[4*ds.length()]; - for (i = 0; i < tags.length; i++) - { - try { - cbc = ASN1CharStrConvMap.getDefault().getCBC(tags[i]); - if (cbc == null) - continue; - ret = cbc.convert(ds.toCharArray(), 0, ds.length(), - bbuf, 0, bbuf.length); - break; - } - catch (java.io.CharConversionException e) { - continue; - } - catch (InstantiationException e) { - throw new IOException("Cannot instantiate CharToByteConverter"); - } - catch (IllegalAccessException e) { - throw new IOException( - "Illegal Access loading CharToByteConverter"); - } - } - if (ret == -1) { - throw new IOException( - "Cannot convert the directory string value to a ASN.1 type"); - } - - derBuf = new byte[ret]; - System.arraycopy(bbuf, 0, derBuf, 0, ret); - return new DerValue(tags[i], derBuf); + public DerValue getValue(String ds, byte[] tags) throws IOException { + // try to convert to printable, then t61 the universal - + // i.e. from minimal to the most liberal. + + int ret = -1; + CharToByteConverter cbc; + DerValue value; + byte[] bbuf, derBuf; + int i; + + if (tags == null || tags.length == 0) + tags = DefEncodingOrder; + + bbuf = new byte[4 * ds.length()]; + for (i = 0; i < tags.length; i++) { + try { + cbc = ASN1CharStrConvMap.getDefault().getCBC(tags[i]); + if (cbc == null) + continue; + ret = cbc.convert(ds.toCharArray(), 0, ds.length(), bbuf, 0, + bbuf.length); + break; + } catch (java.io.CharConversionException e) { + continue; + } catch (InstantiationException e) { + throw new IOException("Cannot instantiate CharToByteConverter"); + } catch (IllegalAccessException e) { + throw new IOException( + "Illegal Access loading CharToByteConverter"); + } + } + if (ret == -1) { + throw new IOException( + "Cannot convert the directory string value to a ASN.1 type"); + } + + derBuf = new byte[ret]; + System.arraycopy(bbuf, 0, derBuf, 0, ret); + return new DerValue(tags[i], derBuf); } /** - * Creates a DerValue from a BER encoded value, obtained from for example - * a attribute value in octothorpe form of a Ldap DN string. - * Checks if the BER encoded value is legal for a DirectoryString. - * + * Creates a DerValue from a BER encoded value, obtained from for example a + * attribute value in octothorpe form of a Ldap DN string. Checks if the BER + * encoded value is legal for a DirectoryString. + * * NOTE: currently only supports DER encoding for the BER encoded value. - * - * @param berStream Byte array of a BER encoded value. - * - * @return DerValue object. - * - * @exception IOException If the BER value cannot be converted to a - * valid Directory String DER value. + * + * @param berStream Byte array of a BER encoded value. + * + * @return DerValue object. + * + * @exception IOException If the BER value cannot be converted to a valid + * Directory String DER value. */ - public DerValue getValue(byte[] berByteStream) - throws IOException - { - DerValue value = new DerValue(berByteStream); - - /* - if (value.tag != DerValue.tag_PrintableString && - value.tag != DerValue.tag_T61String && - value.tag != DerValue.tag_UniversalString) - throw new IOException("Invalid Directory String AVA Value"); - */ - - return value; + public DerValue getValue(byte[] berByteStream) throws IOException { + DerValue value = new DerValue(berByteStream); + + /* + * if (value.tag != DerValue.tag_PrintableString && value.tag != + * DerValue.tag_T61String && value.tag != DerValue.tag_UniversalString) + * throw new IOException("Invalid Directory String AVA Value"); + */ + + return value; } /** - * Converts a DerValue to a string. - * The string is not in any syntax, such as RFC1779 string syntax. - * - * @param avaValue a DerValue - * @return a string if the value can be converted. - * @exception IOException if a ByteToCharConverter needed for the - * conversion is not available. + * Converts a DerValue to a string. The string is not in any syntax, such as + * RFC1779 string syntax. + * + * @param avaValue a DerValue + * @return a string if the value can be converted. + * @exception IOException if a ByteToCharConverter needed for the conversion + * is not available. */ - public String getAsString(DerValue avaValue) - throws IOException - { - /* - if (avaValue.tag != DerValue.tag_PrintableString && - avaValue.tag != DerValue.tag_BMPString && - avaValue.tag != DerValue.tag_UniversalString && - avaValue.tag != DerValue.tag_T61String) - throw new IllegalArgumentException( - "Invalid Directory String value"); - // NOTE will return null if a ByteToCharConverter is not available. - */ - return avaValue.getASN1CharString(); + public String getAsString(DerValue avaValue) throws IOException { + /* + * if (avaValue.tag != DerValue.tag_PrintableString && avaValue.tag != + * DerValue.tag_BMPString && avaValue.tag != + * DerValue.tag_UniversalString && avaValue.tag != + * DerValue.tag_T61String) throw new IllegalArgumentException( + * "Invalid Directory String value"); // NOTE will return null if a + * ByteToCharConverter is not available. + */ + return avaValue.getASN1CharString(); } } |