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authorCGantert345 <57003061+CGantert345@users.noreply.github.com>2021-02-25 11:02:26 +0100
committerCGantert345 <57003061+CGantert345@users.noreply.github.com>2021-02-25 11:02:26 +0100
commit425bd35c736b7e1c0dbe5b3f9162e195b3be6018 (patch)
treebc4668aa125fb0a15518d464a1738c6b05e56d07 /src/net/gcdc/asn1/uper/StringCoder.java
parentissuerOnLine changed from int to Integer as it is optional (diff)
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Diffstat (limited to 'src/net/gcdc/asn1/uper/StringCoder.java')
-rw-r--r--src/net/gcdc/asn1/uper/StringCoder.java342
1 files changed, 0 insertions, 342 deletions
diff --git a/src/net/gcdc/asn1/uper/StringCoder.java b/src/net/gcdc/asn1/uper/StringCoder.java
deleted file mode 100644
index 33a9df6..0000000
--- a/src/net/gcdc/asn1/uper/StringCoder.java
+++ /dev/null
@@ -1,342 +0,0 @@
-package net.gcdc.asn1.uper;
-
-import java.lang.annotation.Annotation;
-import java.lang.reflect.Field;
-import java.math.BigInteger;
-import java.nio.ByteBuffer;
-import java.nio.CharBuffer;
-import java.nio.charset.StandardCharsets;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-
-import logger.Logger;
-import logger.LoggerFactory;
-
-import net.gcdc.asn1.datatypes.Asn1Default;
-import net.gcdc.asn1.datatypes.Asn1String;
-import net.gcdc.asn1.datatypes.CharacterRestriction;
-import net.gcdc.asn1.datatypes.DefaultAlphabet;
-import net.gcdc.asn1.datatypes.FixedSize;
-import net.gcdc.asn1.datatypes.RestrictedString;
-import net.gcdc.asn1.datatypes.SizeRange;
-
-
-class StringCoder implements Decoder, Encoder {
-
- private static final Logger LOGGER = LoggerFactory.getLogger("asnLogger");
-
- @Override public <T> boolean canEncode(T obj, Annotation[] extraAnnotations) {
- return obj instanceof String || obj instanceof Asn1String;
- }
-
- @Override public <T> void encode(BitBuffer bitbuffer, T obj, Annotation[] extraAnnotations) throws Asn1EncodingException {
- String pos = String.format("Position: %d.%d", bitbuffer.position()/8 , bitbuffer.position() % 8);
- UperEncoder.logger.debug(String.format("%s: encode STRING %s of type %s", pos, obj, obj.getClass().getName()));
- Class<?> type = obj.getClass();
- AnnotationStore annotations = new AnnotationStore(type.getAnnotations(), extraAnnotations);
- String string = (obj instanceof String) ? ((String) obj) : ((Asn1String) obj).value();
- RestrictedString restrictionAnnotation = annotations.getAnnotation(RestrictedString.class);
- if (restrictionAnnotation == null) {
- throw new UnsupportedOperationException("Unrestricted character strings are not supported yet. All annotations: " + Arrays.asList(type.getAnnotations()));
- }
-
- FixedSize fixedSize = annotations.getAnnotation(FixedSize.class);
- SizeRange sizeRange = annotations.getAnnotation(SizeRange.class);
- if (fixedSize != null && fixedSize.value() != string.length()) {
- throw new IllegalArgumentException(
- "Bad string length, expected " + fixedSize.value() + ", got " + string.length());
- }
- if (sizeRange != null
- && !sizeRange.hasExtensionMarker()
- && (string.length() < sizeRange.minValue() || sizeRange.maxValue() < string
- .length())) { throw new IllegalArgumentException(
- "Bad string length, expected " + sizeRange.minValue() + ".."
- + sizeRange.maxValue() + ", got " + string.length()); }
-
- if (restrictionAnnotation.value() == CharacterRestriction.ObjectIdentifier) {
-
- byte[] oidb = ObjectIdentifierCoder.encodeObjectId(string);
-
- BitBuffer stringbuffer = ByteBitBuffer.createInfinite();
-
- for (byte b: oidb){
- UperEncoder.encodeConstrainedInt(stringbuffer, b & 0xff, 0, 255);
- }
- //-for (char c : string.toCharArray()) {
- //- encodeChar(stringbuffer, c, restrictionAnnotation);
- //-}
- //char array replaced - end
-
- stringbuffer.flip();
- if (stringbuffer.limit() % 8 != 0) {
- throw new AssertionError("encoding resulted not in multiple of 8 bits");
- }
- int numOctets = (stringbuffer.limit() + 7) / 8; // Actually +7 is not needed here,
- // since we already checked with %8.
- int position1 = bitbuffer.position();
- UperEncoder.encodeLengthDeterminant(bitbuffer, numOctets);
- UperEncoder.logger.debug(String.format("ObjectIdentifier %s, length %d octets, encoded as %s", string, numOctets, bitbuffer.toBooleanStringFromPosition(position1)));
- int position2 = bitbuffer.position();
- for (int i = 0; i < stringbuffer.limit(); i++) {
- bitbuffer.put(stringbuffer.get());
- }
- UperEncoder.logger.debug(String.format("UTF8String %s, encoded length %d octets, value bits: %s", string, numOctets, bitbuffer.toBooleanStringFromPosition(position2)));
- return;
- } else if (restrictionAnnotation.value() == CharacterRestriction.UTF8String) {
- // UTF8 length
- BitBuffer stringbuffer = ByteBitBuffer.createInfinite();
-
- //char array replaced - begin
- byte[] stringasbytearray = string.getBytes(StandardCharsets.UTF_8);
-
- for (byte b: stringasbytearray){
- UperEncoder.encodeConstrainedInt(stringbuffer, b & 0xff, 0, 255);
- }
- //-for (char c : string.toCharArray()) {
- //- encodeChar(stringbuffer, c, restrictionAnnotation);
- //-}
- //char array replaced - end
-
- stringbuffer.flip();
- if (stringbuffer.limit() % 8 != 0) {
- throw new AssertionError("utf8 encoding resulted not in multiple of 8 bits");
- }
- int numOctets = (stringbuffer.limit() + 7) / 8; // Actually +7 is not needed here,
- // since we already checked with %8.
- int position1 = bitbuffer.position();
- UperEncoder.encodeLengthDeterminant(bitbuffer, numOctets);
- UperEncoder.logger.debug(String.format("UTF8String %s, length %d octets, encoded as %s", string, numOctets, bitbuffer.toBooleanStringFromPosition(position1)));
- int position2 = bitbuffer.position();
- for (int i = 0; i < stringbuffer.limit(); i++) {
- bitbuffer.put(stringbuffer.get());
- }
- UperEncoder.logger.debug(String.format("UTF8String %s, encoded length %d octets, value bits: %s", string, numOctets, bitbuffer.toBooleanStringFromPosition(position2)));
- return;
- } else if (fixedSize != null) {
- if (fixedSize.value() != string.length()) { throw new IllegalArgumentException(
- "String length does not match constraints"); }
- int position = bitbuffer.position();
- for (int i = 0; i < fixedSize.value(); i++) {
- encodeChar(bitbuffer, string.charAt(i), restrictionAnnotation);
- }
- UperEncoder.logger.debug(String.format("string encoded as <%s>", bitbuffer.toBooleanStringFromPosition(position)));
- return;
- } else if (sizeRange != null) {
- UperEncoder.logger.debug("string length");
- int position1 = bitbuffer.position();
- UperEncoder.encodeConstrainedInt(bitbuffer, string.length(), sizeRange.minValue(),sizeRange.maxValue(), sizeRange.hasExtensionMarker());
- int position2 = bitbuffer.position();
- UperEncoder.logger.debug("string content");
- for (int i = 0; i < string.length(); i++) {
- encodeChar(bitbuffer, string.charAt(i), restrictionAnnotation);
- }
- UperEncoder.logger.debug(String.format("STRING %s size %d: %s", obj.getClass().getName(), bitbuffer.toBooleanString(position1, position2 - position1),bitbuffer.toBooleanStringFromPosition(position2)));
- return;
- } else {
- int position1 = bitbuffer.position();
- UperEncoder.encodeLengthDeterminant(bitbuffer, string.length());
- int position2 = bitbuffer.position();
- for (int i = 0; i < string.length(); i++) {
- encodeChar(bitbuffer, string.charAt(i), restrictionAnnotation);
- }
- UperEncoder.logger.debug(String.format("STRING %s size %s: %s", obj.getClass().getName(), bitbuffer.toBooleanString(position1, position2 - position1),bitbuffer.toBooleanStringFromPosition(position2)));
- return;
- }
- }
-
- @Override public <T> boolean canDecode(Class<T> classOfT, Annotation[] extraAnnotations) {
- return String.class.isAssignableFrom(classOfT) || Asn1String.class.isAssignableFrom(classOfT);
- }
-
- @Override public <T> T decode(BitBuffer bitbuffer,
- Class<T> classOfT, Field field,
- Annotation[] extraAnnotations) {
- UperEncoder.logger.debug("decode String");
- AnnotationStore annotations = new AnnotationStore(classOfT.getAnnotations(), extraAnnotations);
- RestrictedString restrictionAnnotation = annotations.getAnnotation(RestrictedString.class);
- if (restrictionAnnotation == null) {
- throw new UnsupportedOperationException(
- "Unrestricted character strings are not supported yet. All annotations: " + Arrays.asList(classOfT.getAnnotations()));
- }
- if (restrictionAnnotation.value() == CharacterRestriction.ObjectIdentifier) {
- //decode object identifier
- Long numOctets = UperEncoder.decodeLengthDeterminant(bitbuffer);
- List<Boolean> content = new ArrayList<Boolean>();
- for (int i = 0; i < numOctets * 8; i++) {
- content.add(bitbuffer.get());
- }
- byte[] contentBytes = UperEncoder.bytesFromCollection(content);
- UperEncoder.logger.debug(String.format("Content bytes (hex): %s", UperEncoder.hexStringFromBytes(contentBytes)));
- String resultStr = ObjectIdentifierCoder.decodeObjectId(contentBytes);
- UperEncoder.logger.debug(String.format("Object Identifier: %s", resultStr));
- T result = UperEncoder.instantiate(classOfT, resultStr);
- return result;
- } else if (restrictionAnnotation.value() == CharacterRestriction.UTF8String) {
- Long numOctets = UperEncoder.decodeLengthDeterminant(bitbuffer);
- List<Boolean> content = new ArrayList<Boolean>();
- for (int i = 0; i < numOctets * 8; i++) {
- content.add(bitbuffer.get());
- }
- byte[] contentBytes = UperEncoder.bytesFromCollection(content);
- UperEncoder.logger.debug(String.format("Content bytes (hex): %s", UperEncoder.hexStringFromBytes(contentBytes)));
- String resultStr = StandardCharsets.UTF_8.decode(ByteBuffer.wrap(contentBytes)).toString();
- UperEncoder.logger.debug(String.format("Decoded as %s", resultStr));
- T result = UperEncoder.instantiate(classOfT, resultStr);
- return result;
- } else {
- FixedSize fixedSize = annotations.getAnnotation(FixedSize.class);
- SizeRange sizeRange = annotations.getAnnotation(SizeRange.class);
- long numChars = (fixedSize != null) ? fixedSize.value() :
- (sizeRange != null) ? UperEncoder.decodeConstrainedInt(bitbuffer,
- UperEncoder.intRangeFromSizeRange(sizeRange)) :
- UperEncoder.decodeLengthDeterminant(bitbuffer);
- UperEncoder.logger.debug(String.format("known-multiplier string, numchars: %d", numChars));
- StringBuilder stringBuilder = new StringBuilder((int) numChars);
- for (int c = 0; c < numChars; c++) {
- stringBuilder.append(decodeRestrictedChar(bitbuffer, restrictionAnnotation));
- }
- String resultStr = stringBuilder.toString();
- UperEncoder.logger.debug(String.format("Decoded as %s", resultStr));
- T result = UperEncoder.instantiate(classOfT, resultStr);
- return result;
- }
- }
-
- private static void encodeChar(BitBuffer bitbuffer, char c, RestrictedString restriction) throws Asn1EncodingException {
- UperEncoder.logger.debug(String.format("char %s", c));
- switch (restriction.value()) {
- case IA5String:
- if (restriction.alphabet() != DefaultAlphabet.class) {
- throw new UnsupportedOperationException("alphabet for IA5String is not supported yet.");
- }
- UperEncoder.encodeConstrainedInt(
- bitbuffer,
- StandardCharsets.US_ASCII.encode(CharBuffer.wrap(new char[] { c })).get() & 0xff,
- 0,
- 127);
- return;
- case UTF8String:
- if (restriction.alphabet() != DefaultAlphabet.class) {
- throw new UnsupportedOperationException("alphabet for UTF8 is not supported yet.");
- }
- ByteBuffer buffer = StandardCharsets.UTF_8.encode(CharBuffer.wrap(new char[] { c }));
- for (int i = 0; i < buffer.limit(); i++) {
- UperEncoder.encodeConstrainedInt(bitbuffer, buffer.get() & 0xff, 0, 255);
- }
- return;
- case VisibleString:
- case ISO646String:
- if (restriction.alphabet() != DefaultAlphabet.class) {
- char[] chars;
- try {
- chars = UperEncoder.instantiate(restriction.alphabet()).chars().toCharArray();
- } catch (IllegalArgumentException e) {
- LOGGER.info("Uninstantinatable alphabet ", e);
- throw new IllegalArgumentException("Uninstantinatable alphabet" + restriction.alphabet().getName());
- }
- if (BigInteger.valueOf(chars.length - 1).bitLength() < BigInteger.valueOf(126)
- .bitLength()) {
- Arrays.sort(chars);
- String strAlphabet = new String(chars);
- int index = strAlphabet.indexOf(c);
- if (index < 0) { throw new IllegalArgumentException("can't find character " + c + " in alphabet " + strAlphabet); }
- UperEncoder.encodeConstrainedInt(
- bitbuffer,
- index,
- 0,
- chars.length - 1);
- return;
- } else {
- UperEncoder.encodeConstrainedInt(
- bitbuffer,
- StandardCharsets.US_ASCII.encode(CharBuffer.wrap(new char[] { c }))
- .get() & 0xff,
- 0,
- 126);
- return;
- }
- } else {
- UperEncoder.encodeConstrainedInt(
- bitbuffer,
- StandardCharsets.US_ASCII.encode(CharBuffer.wrap(new char[] { c }))
- .get() & 0xff,
- 0,
- 126);
- return;
- }
- default:
- throw new UnsupportedOperationException("String type " + restriction
- + " is not supported yet");
- }
- }
-
- private static String decodeRestrictedChar(BitBuffer bitqueue,
- RestrictedString restrictionAnnotation) {
- switch (restrictionAnnotation.value()) {
- case IA5String: {
- if (restrictionAnnotation.alphabet() != DefaultAlphabet.class) {
- throw new UnsupportedOperationException(
- "alphabet for IA5String is not supported yet.");
- }
- byte charByte = (byte) UperEncoder.decodeConstrainedInt(bitqueue, UperEncoder.newRange(0, 127, false));
- byte[] bytes = new byte[] { charByte };
- String result = StandardCharsets.US_ASCII.decode(ByteBuffer.wrap(bytes)).toString();
- if (result.length() != 1) {
- throw new AssertionError("decoded more than one char (" + result + ")");
- }
- return result;
- }
- case VisibleString:
- case ISO646String: {
- if (restrictionAnnotation.alphabet() != DefaultAlphabet.class) {
- char[] chars;
- try {
- chars = UperEncoder.instantiate(restrictionAnnotation.alphabet()).chars().toCharArray();
- } catch (IllegalArgumentException e) {
- LOGGER.info("Uninstantinatable alphabet ", e);
- throw new IllegalArgumentException("Uninstantinatable alphabet " + restrictionAnnotation.alphabet().getName());
- }
- if (BigInteger.valueOf(chars.length - 1).bitLength() < BigInteger.valueOf(126)
- .bitLength()) {
- Arrays.sort(chars);
- int index = (byte) UperEncoder.decodeConstrainedInt(bitqueue, UperEncoder.newRange(0, chars.length - 1, false));
- String strAlphabet = new String(chars);
- char c = strAlphabet.charAt(index);
- String result = new String("" + c);
- return result;
- } else { // Encode normally
- byte charByte = (byte) UperEncoder.decodeConstrainedInt(bitqueue, UperEncoder.newRange(0, 126, false));
- byte[] bytes = new byte[] { charByte };
- String result = StandardCharsets.US_ASCII.decode(ByteBuffer.wrap(bytes)).toString();
- if (result.length() != 1) { throw new AssertionError(
- "decoded more than one char (" + result + ")");
- }
- return result;
- }
- } else { // Encode normally
- byte charByte = (byte) UperEncoder.decodeConstrainedInt(bitqueue, UperEncoder.newRange(0, 126, false));
- byte[] bytes = new byte[] { charByte };
- String result = StandardCharsets.US_ASCII.decode(ByteBuffer.wrap(bytes)).toString();
- if (result.length() != 1) {
- throw new AssertionError("decoded more than one char (" + result + ")");
- }
- return result;
- }
- }
- default:
- throw new UnsupportedOperationException("String type " + restrictionAnnotation + " is not supported yet");
-
- }
- }
-
- @Override
- public <T> T getDefault(Class<T> classOfT, Annotation[] extraAnnotations) {
- AnnotationStore annotations = new AnnotationStore(classOfT.getAnnotations(), extraAnnotations);
- Asn1Default defaultAnnotation = annotations.getAnnotation(Asn1Default.class);
- if (defaultAnnotation == null) return null;
- T result = UperEncoder.instantiate(classOfT, defaultAnnotation.value());
- return result;
- }
-
-} \ No newline at end of file