public async Task <byte[]> DefaultProcessPresent(ZServerChannel channel,
BerTree request)
{
BerNode root = request.GetAPDuRoot();
// 解码Search请求包
int nRet = ZProcessor.Decode_PresentRequest(
root,
out PresentRequestInfo info,
out string strError);
if (nRet == -1)
{
goto ERROR1;
}
if (channel.EnsureProperty()._bInitialized == false)
{
return(null);
}
PresentGetRecordsEventArgs e = new PresentGetRecordsEventArgs();
if (this.PresentGetRecords == null)
{
// 模拟返回一条记录
e.Records = new List <RetrivalRecord>();
RetrivalRecord record = new RetrivalRecord();
// TODO: 准备数据
e.Records.Add(record);
}
else
{
e.Request = info;
this.PresentGetRecords(channel, e);
}
// 编码Present响应包
nRet = ZProcessor.Encode_PresentResponse(info,
e.Records,
e.Diag,
e.TotalCount,
out byte[] baResponsePackage);
if (nRet == -1)
{
goto ERROR1;
}
return(baResponsePackage);
ERROR1:
// TODO: 将错误原因写入日志
return(null);
}
public async Task <byte[]> DefaultProcessSearch(ZServerChannel channel,
BerTree request)
{
BerNode root = request.GetAPDuRoot();
// 解码Search请求包
int nRet = ZProcessor.Decode_SearchRequest(
root,
out SearchRequestInfo info,
out string strError);
if (nRet == -1)
{
goto ERROR1;
}
if (channel.EnsureProperty()._bInitialized == false)
{
return(null);
}
SearchSearchEventArgs e = new SearchSearchEventArgs();
e.Request = info;
if (this.SearchSearch == null)
{
// 返回模拟的结果，假装命中了一条记录
e.Result = new ZClient.SearchResult {
Value = 1
};
}
else
{
this.SearchSearch(channel, e);
}
// 编码Search响应包
nRet = ZProcessor.Encode_SearchResponse(info,
e.Result,
e.Diag,
out byte[] baResponsePackage,
out strError);
if (nRet == -1)
{
goto ERROR1;
}
return(baResponsePackage);
ERROR1:
// TODO: 将错误原因写入日志
return(null);
}
public /*async*/ Task <byte[]> DefaultProcessInitialize(ZServerChannel channel,
BerTree request)
{
BerNode root = request.GetAPDuRoot();
Encoding encoding = Encoding.GetEncoding(936);
REDO:
int nRet = ZProcessor.Decode_InitRequest(
root,
encoding,
out InitRequestInfo info,
out string strDebugInfo,
out string strError);
if (nRet == -1)
{
goto ERROR1;
}
// 可以用groupid来表示字符集信息
InitResponseInfo response_info = new InitResponseInfo();
if (info.m_charNego != null)
{
/* option
*
* search (0),
* present (1),
* delSet (2),
* resourceReport (3),
* triggerResourceCtrl (4),
* resourceCtrl (5),
* accessCtrl (6),
* scan (7),
* sort (8),
* -- (9) (reserved)
* extendedServices (10),
* level-1Segmentation (11),
* level-2Segmentation (12),
* concurrentOperations (13),
* namedResultSets (14)
* 15 Encapsulation Z39.50-1995 Amendment 3: Z39.50 Encapsulation
* 16 resultCount parameter in Sort Response See Note 8 Z39.50-1995 Amendment 1: Add resultCount parameter to Sort Response
* 17 Negotiation Model See Note 9 Model for Z39.50 Negotiation During Initialization
* 18 Duplicate Detection See Note 1 Z39.50 Duplicate Detection Service
* 19 Query type 104
* }
*/
response_info.m_strOptions = "yynnnnnnnnnnnnn";
if (info.m_charNego.EncodingLevelOID == CharsetNeogatiation.Utf8OID)
{
BerTree.SetBit(ref response_info.m_strOptions,
17,
true);
response_info.m_charNego = info.m_charNego;
// 2018/9/19
// 如果最初解码用的编码方式不是 UTF8，则需要重新解码
if (encoding != Encoding.UTF8)
{
encoding = Encoding.UTF8;
goto REDO;
}
channel.EnsureProperty()._searchTermEncoding = Encoding.UTF8;
if (info.m_charNego.RecordsInSelectedCharsets != -1)
{
response_info.m_charNego.RecordsInSelectedCharsets = info.m_charNego.RecordsInSelectedCharsets; // 依从前端的请求
if (response_info.m_charNego.RecordsInSelectedCharsets == 1)
{
channel.EnsureProperty()._marcRecordEncoding = Encoding.UTF8;
}
}
}
}
else
{
response_info.m_strOptions = "yynnnnnnnnnnnnn";
}
// 判断info中的信息，决定是否接受Init请求。
// ZServerChannel 初始化设置一些信息。这样它一直携带着伴随生命周期全程
Result result = AutoSetChannelProperty(channel, info);
if (result.Value == -1)
{
response_info.m_nResult = 0;
channel.EnsureProperty()._bInitialized = false;
ZProcessor.SetInitResponseUserInfo(response_info,
"1.2.840.10003.4.1", // string strOID,
string.IsNullOrEmpty(result.ErrorCode) ? 100 : Convert.ToInt32(result.ErrorCode), // (unspecified) error
result.ErrorInfo);
goto DO_RESPONSE;
}
#if NO
if (String.IsNullOrEmpty(info.m_strID) == true)
{
ZConfig config = AutoGetZConfig(channel, info, out strError);
if (config == null)
{
ZProcessor.SetInitResponseUserInfo(response_info,
"", // string strOID,
0, // long lErrorCode,
strError);
goto DO_RESPONSE;
}
// 如果定义了允许匿名登录
if (String.IsNullOrEmpty(config.AnonymousUserName) == false)
{
info.m_strID = config.AnonymousUserName;
info.m_strPassword = config.AnonymousPassword;
}
else
{
response_info.m_nResult = 0;
channel.SetProperty()._bInitialized = false;
ZProcessor.SetInitResponseUserInfo(response_info,
"", // string strOID,
0, // long lErrorCode,
"不允许匿名登录");
goto DO_RESPONSE;
}
}
#endif
if (this.InitializeLogin != null)
{
InitializeLoginEventArgs e = new InitializeLoginEventArgs();
this.InitializeLogin(channel, e);
if (e.Result.Value == -1 || e.Result.Value == 0)
{
response_info.m_nResult = 0;
channel.EnsureProperty()._bInitialized = false;
ZProcessor.SetInitResponseUserInfo(response_info,
"1.2.840.10003.4.1", // string strOID,
string.IsNullOrEmpty(e.Result.ErrorCode) ? 101 : Convert.ToInt32(e.Result.ErrorCode), // Access-control failure
e.Result.ErrorInfo);
}
else
{
response_info.m_nResult = 1;
channel.EnsureProperty()._bInitialized = true;
}
}
else
{
response_info.m_nResult = 1;
channel.EnsureProperty()._bInitialized = true;
}
#if NO
// 进行登录
// return:
// -1 error
// 0 登录未成功
// 1 登录成功
nRet = DoLogin(info.m_strGroupID,
info.m_strID,
info.m_strPassword,
out strError);
if (nRet == -1 || nRet == 0)
{
response_info.m_nResult = 0;
this._bInitialized = false;
ZProcessor.SetInitResponseUserInfo(response_info,
"", // string strOID,
0, // long lErrorCode,
strError);
}
else
{
response_info.m_nResult = 1;
channel._bInitialized = true;
}
#endif
DO_RESPONSE:
// 填充 response_info 的其它结构
response_info.m_strReferenceId = info.m_strReferenceId;
//if (channel._property == null)
// channel._property = new ChannelPropterty();
if (info.m_lPreferredMessageSize != 0)
{
channel.EnsureProperty().PreferredMessageSize = info.m_lPreferredMessageSize;
}
// 极限
if (channel.EnsureProperty().PreferredMessageSize > ZServerChannelProperty.MaxPreferredMessageSize)
{
channel.EnsureProperty().PreferredMessageSize = ZServerChannelProperty.MaxPreferredMessageSize;
}
response_info.m_lPreferredMessageSize = channel.EnsureProperty().PreferredMessageSize;
if (info.m_lExceptionalRecordSize != 0)
{
channel.EnsureProperty().ExceptionalRecordSize = info.m_lExceptionalRecordSize;
}
// 极限
if (channel.EnsureProperty().ExceptionalRecordSize > ZServerChannelProperty.MaxExceptionalRecordSize)
{
channel.EnsureProperty().ExceptionalRecordSize = ZServerChannelProperty.MaxExceptionalRecordSize;
}
response_info.m_lExceptionalRecordSize = channel.EnsureProperty().ExceptionalRecordSize;
response_info.m_strImplementationId = "Digital Platform";
response_info.m_strImplementationName = "dp2Capo";
response_info.m_strImplementationVersion = "1.0";
// BerTree tree = new BerTree();
ZProcessor.Encode_InitialResponse(response_info,
out byte[] baResponsePackage);
return(Task.FromResult(baResponsePackage));
ERROR1:
// TODO: 将错误原因写入日志
LibraryManager.Log?.Error(strError);
return(null);
}
