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com.nimbusds.common.ldap.LDAPControlRequestParser Maven / Gradle / Ivy
package com.nimbusds.common.ldap;
import java.text.ParseException;
import java.util.List;
import java.util.Map;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.ldap.sdk.controls.ServerSideSortRequestControl;
import com.unboundid.ldap.sdk.controls.SimplePagedResultsControl;
import com.unboundid.ldap.sdk.controls.SortKey;
import com.unboundid.ldap.sdk.controls.VirtualListViewRequestControl;
import com.unboundid.util.Base64;
import com.thetransactioncompany.jsonrpc2.JSONRPC2Error;
import com.thetransactioncompany.jsonrpc2.util.NamedParamsRetriever;
/**
* LDAP control request parser. Provides parsing of JSON-based requests for the
* following controls:
*
*
* Server-side-sort request control (RFC 2891).
* Simple paged results control (RFC 2696).
* Virtual list view control (draft-ietf-ldapext-ldapv3-vlv)
*
*/
public class LDAPControlRequestParser {
/**
* Parses a JSON array (java.util.List) representing a server-side sort
* (RFC 2891) request.
*
* Example:
*
*
* [ { "key" : "sn",
* "reverseOrder" : false,
* "orderingRule" : null },
* { "key" : "givenName",
* "reverseOrder" : false,
* "orderingRule" : null } ]
*
*
* @param sortParams JSON array of JSON objects with properties "key"
* (mandatory string), "reverseOrder" (optional
* boolean, defaults to false) and "orderingRule"
* (optional string, defaults to null). If
* {@code null} no control is requested.
*
* @return The resulting server-side sort request control or
* {@code null} if none is requested.
*
* @throws JSONRPC2Error If the parameters are invalid.
*/
@SuppressWarnings("unchecked")
public static ServerSideSortRequestControl
parseServerSideSortRequestControl(final List sortParams)
throws JSONRPC2Error {
if (sortParams == null || sortParams.isEmpty())
return null;
SortKey[] sortKeys = new SortKey[sortParams.size()];
for (int i=0; i < sortParams.size(); i++) {
Map entry;
try {
entry = (Map)sortParams.get(i);
} catch (Exception e) {
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid server-side sort control specification");
}
NamedParamsRetriever np = new NamedParamsRetriever(entry);
String key = np.getString("key");
boolean reverseOrder = np.getOptBoolean("reverseOrder", false);
String orderingRule = np.getOptString("orderingRule", true, null);
sortKeys[i] = new SortKey(key, orderingRule, reverseOrder);
}
// Cause LDAP error on unsupported control
boolean isCritical = true;
return new ServerSideSortRequestControl(isCritical, sortKeys);
}
/**
* Parses a JSON object (java.util.Map) representing a simple paged
* results (RFC 2696) request.
*
* Example:
*
*
* { "size" : 25,
* "cookie" : "AAAAAAAAABw=" }
*
*
* @param pageParams JSON object with properties "size" (mandatory
* integer, must be positive) and "cookie" (optional
* BASE64 - encoded string, defaults to empty
* string). If {@code null} no control is requested.
*
* @return The resulting simple paged results control or {@code null}
* if none is requested.
*
* @throws JSONRPC2Error If the parameters are invalid.
*/
public static SimplePagedResultsControl
parseSimplePagedResultsControl(final Map pageParams)
throws JSONRPC2Error {
if (pageParams == null)
return null;
NamedParamsRetriever np = new NamedParamsRetriever(pageParams);
// Parse page size, must be positive
int size = np.getInt("size");
if (size < 1)
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid simple paged results control specification: Size must be positive");
// Parse page cookie, defaults to empty string
ASN1OctetString cookie = null;
String cookieBase64 = np.getOptString("cookie", true, null);
try {
if (cookieBase64 != null)
cookie = new ASN1OctetString(Base64.decode(cookieBase64));
} catch (ParseException e) {
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid simple paged results control specification: Unexpected cookie format");
}
// Cause LDAP error on unsupported control
boolean isCritical = true;
return new SimplePagedResultsControl(size, cookie, isCritical);
}
/**
* Parses a JSON object (java.util.Map) representing a virtual list
* view (draft-ietf-ldapext-ldapv3-vlv-09) request.
*
* Minimally specified example:
*
*
* { "after" : 9 }
*
*
* Fully specified example:
*
*
* { "offset" : 11,
* "before" : 0,
* "after" : 9,
* "totalEntryCount" : 123,
* "cookie" : "AAAAAAAAABw=" }
*
*
* @param vlvParams JSON object with properties "offset" (optional
* integer, must be positive, defaults to one),
* "before" (optional integer, must be zero or
* positive, defaults to zero), "after" (mandatory
* integer, must be zero or positive),
* "totalEntryCount" (optional integer, must be zero
* or positive, defaults to zero) and "cookie"
* (optional BASE64 - encoded string, defaults to
* empty string). If {@code null} no control is
* requested.
*
* @return The resulting virtual list view control or {@code null}
* if none is requested.
*
* @throws JSONRPC2Error If the parameters are invalid.
*/
public static VirtualListViewRequestControl
parseVirtualListViewControl(final Map vlvParams)
throws JSONRPC2Error {
if (vlvParams == null)
return null;
NamedParamsRetriever np = new NamedParamsRetriever(vlvParams);
// Parse offset
int offset = np.getOptInt("offset", 1);
if (offset < 1)
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid virtual list view control specification: Offset must be positive (1 based)");
int before = np.getOptInt("before", 0);
if (before < 0)
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid virtual list view control specification: Before count must zero or positive");
int after = np.getInt("after");
if (after < 0)
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid virtual list view control specification: After count must zero or positive");
int totalEntryCount = np.getOptInt("totalEntryCount", 0);
if (totalEntryCount < 0)
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid virtual list view control specification: Total entry count estimate must zero or positive");
// Parse cookie (context ID), defaults to empty string
ASN1OctetString cookie = null;
String cookieBase64 = np.getOptString("cookie", true, null);
try {
if (cookieBase64 != null)
cookie = new ASN1OctetString(Base64.decode(cookieBase64));
} catch (ParseException e) {
throw JSONRPC2Error.INVALID_PARAMS.
appendMessage(": Invalid virtual list view control specification: Unexpected cookie format");
}
// Cause LDAP error on unsupported control
boolean isCritical = true;
return new VirtualListViewRequestControl(offset, before, after, totalEntryCount, cookie, isCritical);
}
/**
* Prevents instantiation.
*/
private LDAPControlRequestParser() {
// Nothing to do
}
}
