initial commit
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9
.gitignore
vendored
Normal file
9
.gitignore
vendored
Normal file
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@ -0,0 +1,9 @@
|
|||
/.idea
|
||||
/.settings
|
||||
/.classpath
|
||||
/.project
|
||||
/.gradle
|
||||
build
|
||||
.DS_Store
|
||||
*.iml
|
||||
*.properties
|
14
CREDITS.txt
Normal file
14
CREDITS.txt
Normal file
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@ -0,0 +1,14 @@
|
|||
This software is based on the work of
|
||||
|
||||
Zebulun https://github.com/jafer-org/zebulun
|
||||
|
||||
a low level Java implementation of the NISO Z39.50 protocol,
|
||||
|
||||
and
|
||||
|
||||
Java Access For Electronic Resources (Jafer) https://github.com/jafer-org/jafer
|
||||
|
||||
The JAFER Project (Java Access For Electronic Resources) was a Jisc funded project (2000 - 2003)
|
||||
based at Oxford University to produce an easy to use toolkit for building portals
|
||||
and information sources without having to deal with the technical intricacies of the Z39.50 protocol.
|
||||
|
202
LICENSE.txt
Normal file
202
LICENSE.txt
Normal file
|
@ -0,0 +1,202 @@
|
|||
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
|
||||
1. Definitions.
|
||||
|
||||
"License" shall mean the terms and conditions for use, reproduction,
|
||||
and distribution as defined by Sections 1 through 9 of this document.
|
||||
|
||||
"Licensor" shall mean the copyright owner or entity authorized by
|
||||
the copyright owner that is granting the License.
|
||||
|
||||
"Legal Entity" shall mean the union of the acting entity and all
|
||||
other entities that control, are controlled by, or are under common
|
||||
control with that entity. For the purposes of this definition,
|
||||
"control" means (i) the power, direct or indirect, to cause the
|
||||
direction or management of such entity, whether by contract or
|
||||
otherwise, or (ii) ownership of fifty percent (50%) or more of the
|
||||
outstanding shares, or (iii) beneficial ownership of such entity.
|
||||
|
||||
"You" (or "Your") shall mean an individual or Legal Entity
|
||||
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|
||||
|
||||
"Source" form shall mean the preferred form for making modifications,
|
||||
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|
||||
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|
||||
|
||||
"Object" form shall mean any form resulting from mechanical
|
||||
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|
||||
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|
||||
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|
||||
"Work" shall mean the work of authorship, whether in Source or
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||||
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|
||||
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||||
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||||
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|
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|
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||||
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any Contribution intentionally submitted for inclusion in the Work
|
||||
by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
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||||
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END OF TERMS AND CONDITIONS
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APPENDIX: How to apply the Apache License to your work.
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||||
To apply the Apache License to your work, attach the following
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Unless required by applicable law or agreed to in writing, software
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||||
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323
asn1/config/checkstyle/checkstyle.xml
Normal file
323
asn1/config/checkstyle/checkstyle.xml
Normal file
|
@ -0,0 +1,323 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<!DOCTYPE module PUBLIC
|
||||
"-//Puppy Crawl//DTD Check Configuration 1.3//EN"
|
||||
"http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
|
||||
|
||||
<!-- This is a checkstyle configuration file. For descriptions of
|
||||
what the following rules do, please see the checkstyle configuration
|
||||
page at http://checkstyle.sourceforge.net/config.html -->
|
||||
|
||||
<module name="Checker">
|
||||
|
||||
<module name="FileTabCharacter">
|
||||
<!-- Checks that there are no tab characters in the file.
|
||||
-->
|
||||
</module>
|
||||
|
||||
<module name="NewlineAtEndOfFile">
|
||||
<property name="lineSeparator" value="lf"/>
|
||||
</module>
|
||||
|
||||
<module name="RegexpSingleline">
|
||||
<!-- Checks that FIXME is not used in comments. TODO is preferred.
|
||||
-->
|
||||
<property name="format" value="((//.*)|(\*.*))FIXME" />
|
||||
<property name="message" value='TODO is preferred to FIXME. e.g. "TODO(johndoe): Refactor when v2 is released."' />
|
||||
</module>
|
||||
|
||||
<module name="RegexpSingleline">
|
||||
<!-- Checks that TODOs are named. (Actually, just that they are followed
|
||||
by an open paren.)
|
||||
-->
|
||||
<property name="format" value="((//.*)|(\*.*))TODO[^(]" />
|
||||
<property name="message" value='All TODOs should be named. e.g. "TODO(johndoe): Refactor when v2 is released."' />
|
||||
</module>
|
||||
|
||||
<module name="JavadocPackage">
|
||||
<!-- Checks that each Java package has a Javadoc file used for commenting.
|
||||
Only allows a package-info.java, not package.html. -->
|
||||
</module>
|
||||
|
||||
<!-- All Java AST specific tests live under TreeWalker module. -->
|
||||
<module name="TreeWalker">
|
||||
|
||||
<!--
|
||||
|
||||
IMPORT CHECKS
|
||||
|
||||
-->
|
||||
|
||||
<module name="RedundantImport">
|
||||
<!-- Checks for redundant import statements. -->
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
<module name="ImportOrder">
|
||||
<!-- Checks for out of order import statements. -->
|
||||
|
||||
<property name="severity" value="warning"/>
|
||||
<property name="groups" value="com.google,android,junit,net,org,java,javax"/>
|
||||
<!-- This ensures that static imports go first. -->
|
||||
<property name="option" value="top"/>
|
||||
<property name="tokens" value="STATIC_IMPORT, IMPORT"/>
|
||||
</module>
|
||||
|
||||
<!--
|
||||
|
||||
JAVADOC CHECKS
|
||||
|
||||
-->
|
||||
|
||||
<!-- Checks for Javadoc comments. -->
|
||||
<!-- See http://checkstyle.sf.net/config_javadoc.html -->
|
||||
<module name="JavadocMethod">
|
||||
<property name="scope" value="protected"/>
|
||||
<property name="severity" value="warning"/>
|
||||
<property name="allowMissingJavadoc" value="true"/>
|
||||
<property name="allowMissingParamTags" value="true"/>
|
||||
<property name="allowMissingReturnTag" value="true"/>
|
||||
<property name="allowMissingThrowsTags" value="true"/>
|
||||
<property name="allowThrowsTagsForSubclasses" value="true"/>
|
||||
<property name="allowUndeclaredRTE" value="true"/>
|
||||
</module>
|
||||
|
||||
<module name="JavadocType">
|
||||
<property name="scope" value="protected"/>
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
<module name="JavadocStyle">
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<!--
|
||||
|
||||
NAMING CHECKS
|
||||
|
||||
-->
|
||||
|
||||
<!-- Item 38 - Adhere to generally accepted naming conventions -->
|
||||
|
||||
<module name="PackageName">
|
||||
<!-- Validates identifiers for package names against the
|
||||
supplied expression. -->
|
||||
<!-- Here the default checkstyle rule restricts package name parts to
|
||||
seven characters, this is not in line with common practice at Google.
|
||||
-->
|
||||
<property name="format" value="^[a-z]+(\.[a-z][a-z0-9]{1,})*$"/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="TypeNameCheck">
|
||||
<!-- Validates static, final fields against the
|
||||
expression "^[A-Z][a-zA-Z0-9]*$". -->
|
||||
<metadata name="altname" value="TypeName"/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="ConstantNameCheck">
|
||||
<!-- Validates non-private, static, final fields against the supplied
|
||||
public/package final fields "^[A-Z][A-Z0-9]*(_[A-Z0-9]+)*$". -->
|
||||
<metadata name="altname" value="ConstantName"/>
|
||||
<property name="applyToPublic" value="true"/>
|
||||
<property name="applyToProtected" value="true"/>
|
||||
<property name="applyToPackage" value="true"/>
|
||||
<property name="applyToPrivate" value="false"/>
|
||||
<property name="format" value="^([A-Z][A-Z0-9]*(_[A-Z0-9]+)*|FLAG_.*)$"/>
|
||||
<message key="name.invalidPattern"
|
||||
value="Variable ''{0}'' should be in ALL_CAPS (if it is a constant) or be private (otherwise)."/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="StaticVariableNameCheck">
|
||||
<!-- Validates static, non-final fields against the supplied
|
||||
expression "^[a-z][a-zA-Z0-9]*_?$". -->
|
||||
<metadata name="altname" value="StaticVariableName"/>
|
||||
<property name="applyToPublic" value="true"/>
|
||||
<property name="applyToProtected" value="true"/>
|
||||
<property name="applyToPackage" value="true"/>
|
||||
<property name="applyToPrivate" value="true"/>
|
||||
<property name="format" value="^[a-z][a-zA-Z0-9]*_?$"/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="MemberNameCheck">
|
||||
<!-- Validates non-static members against the supplied expression. -->
|
||||
<metadata name="altname" value="MemberName"/>
|
||||
<property name="applyToPublic" value="true"/>
|
||||
<property name="applyToProtected" value="true"/>
|
||||
<property name="applyToPackage" value="true"/>
|
||||
<property name="applyToPrivate" value="true"/>
|
||||
<property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="MethodNameCheck">
|
||||
<!-- Validates identifiers for method names. -->
|
||||
<metadata name="altname" value="MethodName"/>
|
||||
<property name="format" value="^[a-z][a-zA-Z0-9]*(_[a-zA-Z0-9]+)*$"/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="ParameterName">
|
||||
<!-- Validates identifiers for method parameters against the
|
||||
expression "^[a-z][a-zA-Z0-9]*$". -->
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="LocalFinalVariableName">
|
||||
<!-- Validates identifiers for local final variables against the
|
||||
expression "^[a-z][a-zA-Z0-9]*$". -->
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="LocalVariableName">
|
||||
<!-- Validates identifiers for local variables against the
|
||||
expression "^[a-z][a-zA-Z0-9]*$". -->
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
|
||||
<!--
|
||||
|
||||
LENGTH and CODING CHECKS
|
||||
|
||||
-->
|
||||
|
||||
<module name="LineLength">
|
||||
<!-- Checks if a line is too long. -->
|
||||
<property name="max" value="${com.puppycrawl.tools.checkstyle.checks.sizes.LineLength.max}" default="128"/>
|
||||
<property name="severity" value="error"/>
|
||||
|
||||
<!--
|
||||
The default ignore pattern exempts the following elements:
|
||||
- import statements
|
||||
- long URLs inside comments
|
||||
-->
|
||||
|
||||
<property name="ignorePattern"
|
||||
value="${com.puppycrawl.tools.checkstyle.checks.sizes.LineLength.ignorePattern}"
|
||||
default="^(package .*;\s*)|(import .*;\s*)|( *(\*|//).*https?://.*)$"/>
|
||||
</module>
|
||||
|
||||
<module name="LeftCurly">
|
||||
<!-- Checks for placement of the left curly brace ('{'). -->
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<module name="RightCurly">
|
||||
<!-- Checks right curlies on CATCH, ELSE, and TRY blocks are on
|
||||
the same line. e.g., the following example is fine:
|
||||
<pre>
|
||||
if {
|
||||
...
|
||||
} else
|
||||
</pre>
|
||||
-->
|
||||
<!-- This next example is not fine:
|
||||
<pre>
|
||||
if {
|
||||
...
|
||||
}
|
||||
else
|
||||
</pre>
|
||||
-->
|
||||
<property name="option" value="same"/>
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
<!-- Checks for braces around if and else blocks -->
|
||||
<module name="NeedBraces">
|
||||
<property name="severity" value="warning"/>
|
||||
<property name="tokens" value="LITERAL_IF, LITERAL_ELSE, LITERAL_FOR, LITERAL_WHILE, LITERAL_DO"/>
|
||||
</module>
|
||||
|
||||
<module name="UpperEll">
|
||||
<!-- Checks that long constants are defined with an upper ell.-->
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
<module name="FallThrough">
|
||||
<!-- Warn about falling through to the next case statement. Similar to
|
||||
javac -Xlint:fallthrough, but the check is suppressed if a single-line comment
|
||||
on the last non-blank line preceding the fallen-into case contains 'fall through' (or
|
||||
some other variants which we don't publicized to promote consistency).
|
||||
-->
|
||||
<property name="reliefPattern"
|
||||
value="fall through|Fall through|fallthru|Fallthru|falls through|Falls through|fallthrough|Fallthrough|No break|NO break|no break|continue on"/>
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
|
||||
<!--
|
||||
|
||||
MODIFIERS CHECKS
|
||||
|
||||
-->
|
||||
|
||||
<module name="ModifierOrder">
|
||||
<!-- Warn if modifier order is inconsistent with JLS3 8.1.1, 8.3.1, and
|
||||
8.4.3. The prescribed order is:
|
||||
public, protected, private, abstract, static, final, transient, volatile,
|
||||
synchronized, native, strictfp
|
||||
-->
|
||||
</module>
|
||||
|
||||
|
||||
<!--
|
||||
|
||||
WHITESPACE CHECKS
|
||||
|
||||
-->
|
||||
|
||||
<module name="WhitespaceAround">
|
||||
<!-- Checks that various tokens are surrounded by whitespace.
|
||||
This includes most binary operators and keywords followed
|
||||
by regular or curly braces.
|
||||
-->
|
||||
<property name="tokens" value="ASSIGN, BAND, BAND_ASSIGN, BOR,
|
||||
BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR, BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN,
|
||||
EQUAL, GE, GT, LAND, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE,
|
||||
LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF, LITERAL_RETURN,
|
||||
LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS,
|
||||
MINUS_ASSIGN, MOD, MOD_ASSIGN, NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION,
|
||||
SL, SL_ASSIGN, SR_ASSIGN, STAR, STAR_ASSIGN"/>
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
<module name="WhitespaceAfter">
|
||||
<!-- Checks that commas, semicolons and typecasts are followed by
|
||||
whitespace.
|
||||
-->
|
||||
<property name="tokens" value="COMMA, SEMI, TYPECAST"/>
|
||||
</module>
|
||||
|
||||
<module name="NoWhitespaceAfter">
|
||||
<!-- Checks that there is no whitespace after various unary operators.
|
||||
Linebreaks are allowed.
|
||||
-->
|
||||
<property name="tokens" value="BNOT, DEC, DOT, INC, LNOT, UNARY_MINUS,
|
||||
UNARY_PLUS"/>
|
||||
<property name="allowLineBreaks" value="true"/>
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
<module name="NoWhitespaceBefore">
|
||||
<!-- Checks that there is no whitespace before various unary operators.
|
||||
Linebreaks are allowed.
|
||||
-->
|
||||
<property name="tokens" value="SEMI, DOT, POST_DEC, POST_INC"/>
|
||||
<property name="allowLineBreaks" value="true"/>
|
||||
<property name="severity" value="error"/>
|
||||
</module>
|
||||
|
||||
<module name="ParenPad">
|
||||
<!-- Checks that there is no whitespace before close parens or after
|
||||
open parens.
|
||||
-->
|
||||
<property name="severity" value="warning"/>
|
||||
</module>
|
||||
|
||||
</module>
|
||||
</module>
|
||||
|
24
asn1/config/maven/repo-settings.xml
Normal file
24
asn1/config/maven/repo-settings.xml
Normal file
|
@ -0,0 +1,24 @@
|
|||
<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd" xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
|
||||
<localRepository>~/.m2/repository</localRepository>
|
||||
<activeProfiles>
|
||||
<activeProfile>xbib</activeProfile>
|
||||
</activeProfiles>
|
||||
<profiles>
|
||||
<profile>
|
||||
<id>xbib</id>
|
||||
<repositories>
|
||||
<repository>
|
||||
<id>xbib</id>
|
||||
<url>http://xbib.org/repository</url>
|
||||
<releases>
|
||||
<enabled>true</enabled>
|
||||
<updatePolicy>always</updatePolicy>
|
||||
</releases>
|
||||
<snapshots>
|
||||
<enabled>true</enabled>
|
||||
</snapshots>
|
||||
</repository>
|
||||
</repositories>
|
||||
</profile>
|
||||
</profiles>
|
||||
</settings>
|
94
asn1/src/main/java/org/xbib/asn1/ASN1Any.java
Normal file
94
asn1/src/main/java/org/xbib/asn1/ASN1Any.java
Normal file
|
@ -0,0 +1,94 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* ASN1 ANY
|
||||
* The ANY type denotes an arbitary value of an arbitary type.
|
||||
* This class also serves as the base class for all ASN.1 classes.
|
||||
* The ASN.1 syntax is defined in
|
||||
* <strong>Information Technology - Open Systems Interconnection -
|
||||
* Specification of Abstract Syntax Notation One (ASN.1)</strong>
|
||||
* AS 3625-1991
|
||||
* ISO/IEC 8824:1990
|
||||
* The current implementation assumes values are limited to 32-bit
|
||||
* signed integers for tags, lengths, etc.
|
||||
*/
|
||||
public class ASN1Any {
|
||||
|
||||
/* Hack to support creation of ASN1 ANY types from a BER and have
|
||||
it behave normally. This is not used by any other ASN.1 subclasses.
|
||||
It is a waste of space in that respect. */
|
||||
|
||||
private BEREncoding asn1anyBer;
|
||||
|
||||
public ASN1Any() {
|
||||
//
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 ANY object from a BER encoding.
|
||||
*
|
||||
* @param ber The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Does nothing for ASN1Any.
|
||||
* @throws ASN1Exception if the BER encoding is incorrect.
|
||||
*/
|
||||
public ASN1Any(BEREncoding ber, boolean checkTag) throws ASN1Exception {
|
||||
berDecode(ber, checkTag);
|
||||
}
|
||||
|
||||
/**
|
||||
* Method for initializing the object from a BER encoding.
|
||||
* All classes derived from this one must implement a version of this.
|
||||
* This method will be overridden by derived types.
|
||||
*
|
||||
* @param berEncoding The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Does nothing for ASN1Any.
|
||||
* @throws ASN1Exception If the BER encoding is incorrect.
|
||||
* Never occurs for ASN1Any.
|
||||
*/
|
||||
public void berDecode(BEREncoding berEncoding, boolean checkTag)
|
||||
throws ASN1Exception {
|
||||
asn1anyBer = berEncoding;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructs a BER encoding for this ASN.1 object.
|
||||
* This method is usually overridden by a subclass method.
|
||||
*
|
||||
* @return BER encoding
|
||||
* @throws ASN1Exception If the object cannot be BER encoded.
|
||||
*/
|
||||
public BEREncoding berEncode() throws ASN1Exception {
|
||||
if (asn1anyBer == null) {
|
||||
throw new ASN1EncodingException("uninitialised");
|
||||
}
|
||||
return asn1anyBer;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of ASN1Any, implicitly tagged.
|
||||
*
|
||||
* @param tagType The type of the implicit tag.
|
||||
* @param tag The implicit tag number.
|
||||
* @return The BER encoding of the object.
|
||||
* @throws ASN1Exception when invalid or cannot be encoded.
|
||||
*/
|
||||
public BEREncoding berEncode(int tagType, int tag) throws ASN1Exception {
|
||||
if (asn1anyBer == null) {
|
||||
throw new ASN1EncodingException("uninitialised");
|
||||
}
|
||||
throw new ASN1EncodingException("cannot implicitly tag");
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a new String object representing this ASN.1 object's value.
|
||||
*
|
||||
* @return A text string representation.
|
||||
*/
|
||||
@Override
|
||||
public String toString() {
|
||||
if (asn1anyBer == null) {
|
||||
return "<empty ASN.1 ANY>";
|
||||
}
|
||||
return asn1anyBer.toString();
|
||||
}
|
||||
}
|
156
asn1/src/main/java/org/xbib/asn1/ASN1BitString.java
Normal file
156
asn1/src/main/java/org/xbib/asn1/ASN1BitString.java
Normal file
|
@ -0,0 +1,156 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* Representation of an ASN.1 <code>BIT STRING</code>.
|
||||
* The BIT STRING type denotes an arbitary string of bits (ones and zeros).
|
||||
* A BIT STRING value can have any length, including zero. The type is a
|
||||
* string type.
|
||||
*/
|
||||
public final class ASN1BitString extends ASN1Any {
|
||||
/**
|
||||
* This constant is the ASN.1 UNIVERSAL tag value for BIT STRING.
|
||||
*/
|
||||
public static final int BIT_STRING_TAG = 0x03;
|
||||
|
||||
/**
|
||||
* The values of the BIT STRING are stored in this array of boolean
|
||||
* values.
|
||||
*/
|
||||
private boolean[] bits;
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 BIT STRING object. It sets the tag
|
||||
* to the default value of UNIVERSAL 3, and the bits to the
|
||||
* given bit values.
|
||||
*
|
||||
* @param bitValues - array of booleans representing the bit string.
|
||||
*/
|
||||
public ASN1BitString(boolean[] bitValues) {
|
||||
bits = bitValues;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 BIT STRING object from a BER encoding.
|
||||
*
|
||||
* @param ber The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Use false if is implicitly tagged.
|
||||
* @throws ASN1Exception If the BER encoding is incorrect.
|
||||
*/
|
||||
public ASN1BitString(BEREncoding ber, boolean checkTag)
|
||||
throws ASN1Exception {
|
||||
super(ber, checkTag); // superclass will call berDecode
|
||||
}
|
||||
|
||||
/**
|
||||
* Method for initializing the object from a BER encoding.
|
||||
*
|
||||
* @param berEncoding The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Use false if is implicitly tagged.
|
||||
* @throws ASN1EncodingException If the BER encoding is incorrect.
|
||||
*/
|
||||
@Override
|
||||
public void berDecode(BEREncoding berEncoding, boolean checkTag)
|
||||
throws ASN1EncodingException {
|
||||
if (checkTag && (berEncoding.tagGet() != BIT_STRING_TAG || berEncoding.tagTypeGet() != BEREncoding.UNIVERSAL_TAG)) {
|
||||
throw new ASN1EncodingException("ASN.1 BIT STRING: bad BER: tag=" + berEncoding.tagGet() +
|
||||
" expected " + BIT_STRING_TAG + "\n");
|
||||
}
|
||||
if (berEncoding instanceof BERPrimitive) {
|
||||
BERPrimitive ber = (BERPrimitive) berEncoding;
|
||||
int[] encoding = ber.peek();
|
||||
if (encoding.length < 1) {
|
||||
throw new ASN1EncodingException("ASN1 BIT STRING: invalid encoding, length = " + encoding.length);
|
||||
}
|
||||
int unusedBits = encoding[0] & 0x07;
|
||||
int numBits = (encoding.length - 1) * 8 - unusedBits;
|
||||
bits = new boolean[numBits];
|
||||
for (int bit = 0; bit < numBits; bit++) {
|
||||
int octet = encoding[bit / 8 + 1];
|
||||
octet <<= (bit % 8);
|
||||
bits[bit] = (octet & 0x80) != 0;
|
||||
}
|
||||
} else {
|
||||
throw new ASN1EncodingException("ASN.1 BIT STRING: decoding constructed NOT IMPLEMENTED YET");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the BIT STRING.
|
||||
* Bit strings can have a primitive encoding and a constructed
|
||||
* encoding. This method performs the primitive encoding (which
|
||||
* is the one specified for DER encoding).
|
||||
*
|
||||
* @return The BER encoding of the BIT STRING
|
||||
* @throws ASN1Exception when the BIT STRING is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode() throws ASN1Exception {
|
||||
return berEncode(BEREncoding.UNIVERSAL_TAG, BIT_STRING_TAG);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the BIT STRING.
|
||||
* Bit strings can have a primitive encoding and a constructed
|
||||
* encoding. This method performs the primitive encoding (which
|
||||
* is the one specified for DER encoding).
|
||||
*
|
||||
* @return The BER encoding of the BIT STRING
|
||||
* @throws ASN1Exception when the BIT STRING is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode(int tagType, int tag) throws ASN1Exception {
|
||||
int numOctets = (bits.length + 7) / 8;
|
||||
int[] encoding = new int[numOctets + 1];
|
||||
encoding[0] = (numOctets * 8) - bits.length;
|
||||
for (int count = 1; count <= numOctets; count++) {
|
||||
encoding[count] = 0x00;
|
||||
int bitBaseIndex = (count - 1) * 8;
|
||||
for (int bitIndex = 0; bitIndex < 8; bitIndex++) {
|
||||
int n = bitBaseIndex + bitIndex;
|
||||
encoding[count] <<= 1;
|
||||
if (n < bits.length && bits[n]) {
|
||||
encoding[count] |= 0x01;
|
||||
}
|
||||
}
|
||||
}
|
||||
return new BERPrimitive(tagType, tag, encoding);
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to set the bit string's value.
|
||||
*
|
||||
* @param newBits the value to set the BIT STRING to.
|
||||
* @return the object.
|
||||
*/
|
||||
public ASN1BitString set(boolean[] newBits) {
|
||||
bits = newBits;
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to get the bit string's value.
|
||||
*
|
||||
* @return the BIT STRING's current value.
|
||||
*/
|
||||
public boolean[] get() {
|
||||
return bits;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a new String object representing this ASN.1 object's value.
|
||||
*
|
||||
* @return A text string representation of the BitString.
|
||||
*/
|
||||
@Override
|
||||
public String toString() {
|
||||
StringBuilder str = new StringBuilder();
|
||||
str.append('\'');
|
||||
for (boolean bit : bits) {
|
||||
str.append(bit ? '1' : '0');
|
||||
}
|
||||
str.append("'B");
|
||||
return str.toString();
|
||||
}
|
||||
}
|
127
asn1/src/main/java/org/xbib/asn1/ASN1Boolean.java
Normal file
127
asn1/src/main/java/org/xbib/asn1/ASN1Boolean.java
Normal file
|
@ -0,0 +1,127 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* Representation of an ASN.1 <code>BOOLEAN</code>.
|
||||
* The BOOLEAN type denotes a Boolean value: either true or false.
|
||||
*/
|
||||
public final class ASN1Boolean extends ASN1Any {
|
||||
|
||||
/**
|
||||
* This constant is the ASN.1 UNIVERSAL tag value for BOOLEAN.
|
||||
*/
|
||||
public static final int TAG = 0x01;
|
||||
/**
|
||||
* The value of the BOOLEAN is stored in this variable.
|
||||
*/
|
||||
private boolean value;
|
||||
|
||||
/**
|
||||
* Default constructor for an ASN.1 BOOLEAN object. It sets the tag
|
||||
* to the default of UNIVERSAL 1, and the value to bool.
|
||||
*
|
||||
* @param bool the value of the BOOLEAN.
|
||||
*/
|
||||
|
||||
public ASN1Boolean(boolean bool) {
|
||||
value = bool;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 BOOLEAN object from a BER encoding.
|
||||
*
|
||||
* @param ber The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Use false if is implicitly tagged.
|
||||
* @throws ASN1Exception if the BER encoding is incorrect.
|
||||
*/
|
||||
public ASN1Boolean(BEREncoding ber, boolean checkTag)
|
||||
throws ASN1Exception {
|
||||
super(ber, checkTag); // superclass will call berDecode
|
||||
}
|
||||
|
||||
/**
|
||||
* Method for initializing the object from a BER encoding.
|
||||
*
|
||||
* @param berEncoding The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Use false if is implicitly tagged.
|
||||
* @throws ASN1EncodingException if the BER encoding is incorrect.
|
||||
*/
|
||||
@Override
|
||||
public void berDecode(BEREncoding berEncoding, boolean checkTag)
|
||||
throws ASN1EncodingException {
|
||||
if (checkTag && (berEncoding.tagGet() != TAG || berEncoding.tagTypeGet() != BEREncoding.UNIVERSAL_TAG)) {
|
||||
throw new ASN1EncodingException
|
||||
("ASN.1 BOOLEAN: bad BER: tag=" + berEncoding.tagGet() +
|
||||
" expected " + "TAG\n");
|
||||
}
|
||||
if (berEncoding instanceof BERPrimitive) {
|
||||
BERPrimitive ber = (BERPrimitive) berEncoding;
|
||||
int[] encoding = ber.peek();
|
||||
if (encoding.length != 1) {
|
||||
throw new ASN1EncodingException("ASN.1 BOOLEAN: invalid encoding, length = " + encoding.length);
|
||||
}
|
||||
value = encoding[0] != 0;
|
||||
} else {
|
||||
throw new ASN1EncodingException
|
||||
("ASN.1 BOOLEAN: bad BER: decoding constructed NOT IMPLEMENTED YET");
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the BOOLEAN.
|
||||
*
|
||||
* @return The BER encoding of the BOOLEAN
|
||||
* @throws ASN1Exception when the BOOLEAN is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode()
|
||||
throws ASN1Exception {
|
||||
return berEncode(BEREncoding.UNIVERSAL_TAG, TAG);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the BOOLEAN. Implicitly tagged.
|
||||
*
|
||||
* @return The BER encoding of the BOOLEAN
|
||||
* @throws ASN1Exception when the BOOLEAN is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode(int tagType, int tag) throws ASN1Exception {
|
||||
int[] encoding = new int[1];
|
||||
if (value) {
|
||||
encoding[0] = 0xff; // TRUE (in fact, any non-zero will do)
|
||||
} else {
|
||||
encoding[0] = 0x00; // FALSE
|
||||
}
|
||||
return new BERPrimitive(tagType, tag, encoding);
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to set the boolean's value.
|
||||
*
|
||||
* @param newVal the value to set the BOOLEAN to.
|
||||
* @return the boolean
|
||||
*/
|
||||
public ASN1Boolean set(boolean newVal) {
|
||||
value = newVal;
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to get the boolean's value.
|
||||
*
|
||||
* @return the BOOLEAN's current value.
|
||||
*/
|
||||
public boolean get() {
|
||||
return value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a new String object representing this ASN.1 object's value.
|
||||
*/
|
||||
@Override
|
||||
public String toString() {
|
||||
return value ? "true" : "false";
|
||||
}
|
||||
}
|
66
asn1/src/main/java/org/xbib/asn1/ASN1Decoder.java
Normal file
66
asn1/src/main/java/org/xbib/asn1/ASN1Decoder.java
Normal file
|
@ -0,0 +1,66 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* ASN1Decoder.
|
||||
* This is an ASN1 decoder which can handle all the standard ASN.1 types
|
||||
* (those with UNIVERSAL tag types).
|
||||
* It is used for decoding generic BER encodings into ASN.1 objects.
|
||||
*/
|
||||
public class ASN1Decoder {
|
||||
|
||||
private ASN1Decoder() {
|
||||
// private constructor
|
||||
}
|
||||
|
||||
public static ASN1Any toASN1(BEREncoding ber) throws ASN1Exception {
|
||||
if (ber.tagTypeGet() == BEREncoding.UNIVERSAL_TAG) {
|
||||
switch (ber.tagGet()) {
|
||||
case ASN1Boolean.TAG:
|
||||
return new ASN1Boolean(ber, true);
|
||||
case ASN1Integer.INTEGER_TAG:
|
||||
return new ASN1Integer(ber, true);
|
||||
case ASN1BitString.BIT_STRING_TAG:
|
||||
return new ASN1BitString(ber, true);
|
||||
case ASN1OctetString.OCTET_STRING_TAG:
|
||||
return new ASN1OctetString(ber, true);
|
||||
case ASN1Null.NULL_TAG:
|
||||
return new ASN1Null(ber, true);
|
||||
case ASN1ObjectIdentifier.OBJECT_IDENTIFIER_TAG:
|
||||
return new ASN1ObjectIdentifier(ber, true);
|
||||
case ASN1ObjectDescriptor.OBJECT_DESCRIPTOR_TAG:
|
||||
return new ASN1ObjectDescriptor(ber, true);
|
||||
case ASN1External.EXTERNAL_TAG:
|
||||
return new ASN1External(ber, true);
|
||||
case ASN1Enumerated.ENUMERATED_TAG:
|
||||
return new ASN1Enumerated(ber, true);
|
||||
case ASN1Sequence.SEQUENCE_TAG:
|
||||
return new ASN1Sequence(ber, true);
|
||||
case ASN1Set.SET_TAG:
|
||||
return new ASN1Set(ber, true);
|
||||
case ASN1NumericString.NUMERIC_STRING_TAG:
|
||||
return new ASN1NumericString(ber, true);
|
||||
case ASN1PrintableString.PRINTABLE_STRING_TAG:
|
||||
return new ASN1PrintableString(ber, true);
|
||||
case ASN1T61String.T61_STRING_TAG:
|
||||
return new ASN1T61String(ber, true);
|
||||
case ASN1VideotexString.VIDEOTEX_STRING_TAG:
|
||||
return new ASN1VideotexString(ber, true);
|
||||
case ASN1IA5String.IA5_STRING_TAG:
|
||||
return new ASN1IA5String(ber, true);
|
||||
case ASN1UTCTime.UTC_TIME_TAG:
|
||||
return new ASN1UTCTime(ber, true);
|
||||
case ASN1GeneralizedTime.GENERALIZED_TIME_TAG:
|
||||
return new ASN1GeneralizedTime(ber, true);
|
||||
case ASN1GraphicString.GRAPHIC_STRING_TAG:
|
||||
return new ASN1GraphicString(ber, true);
|
||||
case ASN1VisibleString.TAG:
|
||||
return new ASN1VisibleString(ber, true);
|
||||
case ASN1GeneralString.GENERAL_STRING_TAG:
|
||||
return new ASN1GeneralString(ber, true);
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
return new ASN1Any(ber, true);
|
||||
}
|
||||
}
|
16
asn1/src/main/java/org/xbib/asn1/ASN1EncodingException.java
Normal file
16
asn1/src/main/java/org/xbib/asn1/ASN1EncodingException.java
Normal file
|
@ -0,0 +1,16 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* ASN1EncodingException.
|
||||
*/
|
||||
public class ASN1EncodingException extends ASN1Exception {
|
||||
private static final long serialVersionUID = 2063392457642967553L;
|
||||
|
||||
public ASN1EncodingException() {
|
||||
super("ASN.1 encoding exception");
|
||||
}
|
||||
|
||||
public ASN1EncodingException(String message) {
|
||||
super(message);
|
||||
}
|
||||
}
|
147
asn1/src/main/java/org/xbib/asn1/ASN1Enumerated.java
Normal file
147
asn1/src/main/java/org/xbib/asn1/ASN1Enumerated.java
Normal file
|
@ -0,0 +1,147 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* Representation of an ASN.1 ENUMERATED.
|
||||
* The <code>ENUMERATED</code> type denotes an integer from a selected set.
|
||||
* ASN.1 ENUMERATED values can be positive, negative, or zero; and can
|
||||
* have any magnitude.
|
||||
* The current implementation limits the values of ENUMERATED to 32-bit
|
||||
* two's complement values.
|
||||
*/
|
||||
public final class ASN1Enumerated extends ASN1Any {
|
||||
/**
|
||||
* This constant is the ASN.1 UNIVERSAL tag value for ENUMERATED.
|
||||
*/
|
||||
public static final int ENUMERATED_TAG = 0x0A;
|
||||
|
||||
/**
|
||||
* The value of the ENUMERATED is stored in this variable.
|
||||
* This is private for good information hiding, so that we are able
|
||||
* to change its representation (e.g. to a long) at a later date
|
||||
* without affecting the interface.
|
||||
*/
|
||||
private int value;
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 ENUMERATED object. The tag is
|
||||
* set to the default tag of UNIVERSAL 2, and the value to the
|
||||
* given number.
|
||||
*
|
||||
* @param number the value of the ENUMERATED.
|
||||
*/
|
||||
public ASN1Enumerated(int number) {
|
||||
value = number;
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 ENUMERATED object from a BER encoding.
|
||||
* @param ber the BER encoding
|
||||
* @param checkTag the check tag
|
||||
* @throws ASN1Exception if the BER encoding is incorrect.
|
||||
*/
|
||||
public ASN1Enumerated(BEREncoding ber, boolean checkTag)
|
||||
throws ASN1Exception {
|
||||
super(ber, checkTag);
|
||||
}
|
||||
|
||||
/**
|
||||
* Method for initializing the object from a BER encoding.
|
||||
*
|
||||
* @throws ASN1EncodingException if the BER encoding is incorrect.
|
||||
*/
|
||||
@Override
|
||||
public void berDecode(BEREncoding berEncoding, boolean checkTag)
|
||||
throws ASN1EncodingException {
|
||||
if (checkTag && (berEncoding.tagGet() != ENUMERATED_TAG ||
|
||||
berEncoding.tagTypeGet() != BEREncoding.UNIVERSAL_TAG)) {
|
||||
throw new ASN1EncodingException("bad BER: tag=" + berEncoding.tagGet() +
|
||||
" expected " + ENUMERATED_TAG + "\n");
|
||||
}
|
||||
if (!(berEncoding instanceof BERPrimitive)) {
|
||||
throw new ASN1EncodingException("bad form, constructed");
|
||||
}
|
||||
BERPrimitive ber = (BERPrimitive) berEncoding;
|
||||
int[] encoding = ber.peek();
|
||||
if (encoding.length < 1) {
|
||||
throw new ASN1EncodingException("invalid encoding, length = " + encoding.length);
|
||||
}
|
||||
value = (byte) encoding[0]; // to ensure sign extension
|
||||
for (int x = 1; x < encoding.length; x++) {
|
||||
value <<= 8;
|
||||
value |= (encoding[x] & 0xff);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the ENUMERATED.
|
||||
*
|
||||
* @return The BER encoding of the ENUMERATED
|
||||
* @throws ASN1Exception when the ENUMERATED is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode() throws ASN1Exception {
|
||||
return berEncode(BEREncoding.UNIVERSAL_TAG, ENUMERATED_TAG);
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the ENUMERATED. Explicitly tagged with
|
||||
* the supplied tag.
|
||||
*
|
||||
* @return The BER encoding of the ENUMERATED
|
||||
* @throws ASN1Exception when the ENUMERATED is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode(int tagType, int tag) throws ASN1Exception {
|
||||
int length = 0;
|
||||
int shifted = value;
|
||||
if (value < 0) {
|
||||
shifted = ~value;
|
||||
}
|
||||
boolean needPad;
|
||||
do {
|
||||
needPad = (shifted & 0x80) == 0x80;
|
||||
shifted >>= 8;
|
||||
length++;
|
||||
} while (shifted != 0);
|
||||
if (needPad) {
|
||||
length++;
|
||||
}
|
||||
int[] encoding = new int[length];
|
||||
int index = 0;
|
||||
while (0 < length) {
|
||||
encoding[index++] = (value >> (8 * (length - 1))) & 0xff;
|
||||
length--;
|
||||
}
|
||||
return new BERPrimitive(tagType, tag, encoding);
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to set the integer's value.
|
||||
*
|
||||
* @param newVal the value to set the ENUMERATED to.
|
||||
* @return the object.
|
||||
*/
|
||||
public ASN1Enumerated set(int newVal) {
|
||||
value = newVal;
|
||||
return this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Method to get the integer's value.
|
||||
*
|
||||
* @return the ENUMERATED's current value.
|
||||
*/
|
||||
public int get() {
|
||||
return value;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a new String object representing this ASN.1 object's value.
|
||||
*/
|
||||
@Override
|
||||
public String toString() {
|
||||
return String.valueOf(value);
|
||||
}
|
||||
}
|
18
asn1/src/main/java/org/xbib/asn1/ASN1Exception.java
Normal file
18
asn1/src/main/java/org/xbib/asn1/ASN1Exception.java
Normal file
|
@ -0,0 +1,18 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
import java.io.IOException;
|
||||
|
||||
/**
|
||||
* ASN1Exception.
|
||||
*/
|
||||
public class ASN1Exception extends IOException {
|
||||
private static final long serialVersionUID = -339688617660261367L;
|
||||
|
||||
public ASN1Exception() {
|
||||
super("ASN.1 exception");
|
||||
}
|
||||
|
||||
public ASN1Exception(String message) {
|
||||
super(message);
|
||||
}
|
||||
}
|
282
asn1/src/main/java/org/xbib/asn1/ASN1External.java
Normal file
282
asn1/src/main/java/org/xbib/asn1/ASN1External.java
Normal file
|
@ -0,0 +1,282 @@
|
|||
package org.xbib.asn1;
|
||||
|
||||
/**
|
||||
* ASN1 EXTERNAL
|
||||
* The <code>EXTERNAL</code> type represents an external object.
|
||||
* According to clause 34.4 of the ASN.1 standard,
|
||||
* the EXTERNAL type can be defined as:
|
||||
* <pre>
|
||||
* EXTERNAL := [UNIVERSAL 8] IMPLICIT SEQUENCE {
|
||||
* direct_reference OBJECT IDENTIFIER OPTIONAL,
|
||||
* indirect_reference INTEGER OPTIONAL,
|
||||
* data_value_descriptor ObjectDescriptor OPTIONAL,
|
||||
* encoding CHOICE {
|
||||
* single_ASN1_type [0] ANY,
|
||||
* octet_Aligned [1] IMPLICIT OCTET STRING,
|
||||
* arbitrary [2] IMPLICIT BIT STRING
|
||||
* }
|
||||
* }
|
||||
* </pre>
|
||||
* This construct has been represented by a class with six
|
||||
* variables:
|
||||
* sDirectReference,
|
||||
* sIndirectReference,
|
||||
* sDataValueDescriptor,
|
||||
* cSingleASN1Type,
|
||||
* cOctetAligned,
|
||||
* cArbitrary.
|
||||
* The first three should be set to point to the appropriate object
|
||||
* if present, or null if not.
|
||||
* One of the last three variables should be set to non-null (the choice)
|
||||
* and the rest to null.
|
||||
*/
|
||||
public final class ASN1External extends ASN1Any {
|
||||
/**
|
||||
* This constant is the ASN.1 UNIVERSAL tag value for an EXTERNAL.
|
||||
*/
|
||||
public static final int EXTERNAL_TAG = 0x08;
|
||||
|
||||
/*
|
||||
* The values are stored in these variables.
|
||||
*/
|
||||
private ASN1ObjectIdentifier sDirectReference;
|
||||
private ASN1Integer sIndirectReference;
|
||||
private ASN1ObjectDescriptor sDataValueDescriptor;
|
||||
private ASN1Any cSingleASN1Type;
|
||||
private ASN1OctetString cOctetAligned;
|
||||
private ASN1BitString cArbitrary;
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 EXTERNAL object. It sets the tag to the
|
||||
* default value of UNIVERSAL 8.
|
||||
*/
|
||||
public ASN1External() {
|
||||
//
|
||||
}
|
||||
|
||||
/**
|
||||
* Constructor for an ASN.1 EXTERNAL object from a BER encoding.
|
||||
*
|
||||
* @param ber The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Use false if is implicitly tagged.
|
||||
* @throws ASN1Exception If the BER encoding is incorrect.
|
||||
*/
|
||||
public ASN1External(BEREncoding ber, boolean checkTag)
|
||||
throws ASN1Exception {
|
||||
super(ber, checkTag);
|
||||
}
|
||||
|
||||
/**
|
||||
* Method for initializing the object from a BER encoding.
|
||||
*
|
||||
* @param berEncoding The BER encoding to use.
|
||||
* @param checkTag If true, it checks the tag. Use false if is implicitly tagged.
|
||||
* @throws ASN1Exception If the BER encoding is incorrect.
|
||||
*/
|
||||
@Override
|
||||
public void berDecode(BEREncoding berEncoding, boolean checkTag)
|
||||
throws ASN1Exception {
|
||||
if (checkTag && (berEncoding.tagGet() != EXTERNAL_TAG || berEncoding.tagTypeGet() != BEREncoding.UNIVERSAL_TAG)) {
|
||||
throw new ASN1EncodingException("bad BER: tag=" + berEncoding.tagGet() +
|
||||
" expected " + EXTERNAL_TAG + "\n");
|
||||
}
|
||||
if (berEncoding instanceof BERPrimitive) {
|
||||
throw new ASN1EncodingException("incorrect form, primitive encoding");
|
||||
}
|
||||
BERConstructed ber = (BERConstructed) berEncoding;
|
||||
sDirectReference = null;
|
||||
sIndirectReference = null;
|
||||
sDataValueDescriptor = null;
|
||||
cSingleASN1Type = null;
|
||||
cOctetAligned = null;
|
||||
cArbitrary = null;
|
||||
int numParts = ber.numberComponents();
|
||||
if (numParts < 1) {
|
||||
throw new ASN1EncodingException("incomplete");
|
||||
}
|
||||
int part = 0;
|
||||
BEREncoding p = ber.elementAt(part);
|
||||
if (p.tagGet() == ASN1ObjectIdentifier.OBJECT_IDENTIFIER_TAG &&
|
||||
p.tagTypeGet() == BEREncoding.UNIVERSAL_TAG) {
|
||||
sDirectReference = new ASN1ObjectIdentifier(p, true);
|
||||
if (numParts <= ++part) {
|
||||
throw new ASN1EncodingException("incomplete");
|
||||
}
|
||||
p = ber.elementAt(part);
|
||||
}
|
||||
if (p.tagGet() == ASN1Integer.INTEGER_TAG &&
|
||||
p.tagTypeGet() == BEREncoding.UNIVERSAL_TAG) {
|
||||
sIndirectReference = new ASN1Integer(p, true);
|
||||
if (numParts <= ++part) {
|
||||
throw new ASN1EncodingException("incomplete");
|
||||
}
|
||||
p = ber.elementAt(part);
|
||||
}
|
||||
if (p.tagGet() == ASN1ObjectDescriptor.OBJECT_DESCRIPTOR_TAG &&
|
||||
p.tagTypeGet() == BEREncoding.UNIVERSAL_TAG) {
|
||||
sDataValueDescriptor = new ASN1ObjectDescriptor(p, true);
|
||||
if (numParts <= ++part) {
|
||||
throw new ASN1EncodingException("incomplete");
|
||||
}
|
||||
p = ber.elementAt(part);
|
||||
}
|
||||
switch (p.tagGet()) {
|
||||
case 0:
|
||||
if (!(p instanceof BERConstructed)) {
|
||||
throw new ASN1EncodingException("singleASN1type: bad form, primitive");
|
||||
}
|
||||
if (((BERConstructed) p).numberComponents() != 1) {
|
||||
throw new ASN1EncodingException("singleASN1type: bad form, no explicit tag");
|
||||
}
|
||||
cSingleASN1Type = ASN1Decoder.toASN1(((BERConstructed) p).elementAt(0));
|
||||
break;
|
||||
case 1:
|
||||
// octetAligned [1] IMPLICIT OCTET STRING
|
||||
if (p.tagTypeGet() != BEREncoding.CONTEXT_SPECIFIC_TAG) {
|
||||
throw new ASN1EncodingException("encoding: bad tag type " + p);
|
||||
}
|
||||
cOctetAligned = new ASN1OctetString(p, false);
|
||||
break;
|
||||
case 2:
|
||||
// arbitrary [2] IMPLICIT BIT STRING
|
||||
if (p.tagTypeGet() != BEREncoding.CONTEXT_SPECIFIC_TAG) {
|
||||
throw new ASN1EncodingException("encoding: bad tag type " + p);
|
||||
}
|
||||
cArbitrary = new ASN1BitString(p, false);
|
||||
break;
|
||||
default:
|
||||
throw new ASN1EncodingException("encoding: tag = " + p.tagGet());
|
||||
}
|
||||
if (part != (numParts - 1)) {
|
||||
throw new ASN1Exception("extra element(s)");
|
||||
}
|
||||
}
|
||||
|
||||
public ASN1OctetString getcOctetAligned() {
|
||||
return cOctetAligned;
|
||||
}
|
||||
|
||||
public ASN1Any getSingleASN1Type() {
|
||||
return cSingleASN1Type;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a BER encoding of the EXTERNAL.
|
||||
*
|
||||
* @return The BER encoding of the EXTERNAL
|
||||
* @throws ASN1Exception when the EXTERNAL is invalid
|
||||
* and cannot be encoded.
|
||||
*/
|
||||
@Override
|
||||
public BEREncoding berEncode() throws ASN1Exception {
|
||||
return berEncode(BEREncoding.UNIVERSAL_TAG, EXTERNAL_TAG);
|
||||