// 执行初始化
// 同步模式
// parameters:
// strResultInfo [out]返回说明初始化结果的文字
// return Value:
// -1 出错
// 0 成功
async Task <InitialResult> Initial(
TargetInfo targetinfo,
bool bIgnoreReferenceID,
string reference_id)
{
string strResultInfo = "";
BerTree tree = new BerTree();
INIT_REQUEST struInit_request = new INIT_REQUEST();
// TargetInfo targetinfo = connection.TargetInfo;
if (this._channel.Initialized == true)
{
return new InitialResult {
Value = -1, ErrorInfo = "先前已经初始化过了，不应重复初始化"
}
}
; // 不能重复调用
struInit_request.m_strReferenceId = reference_id;
struInit_request.m_strOptions = "yynnnnnnnnnnnnnnnn"; // "yyynynnyynynnnyn";
struInit_request.m_lPreferredMessageSize = 0x100000; ////16384;
struInit_request.m_lExceptionalRecordSize = 0x100000;
if (String.IsNullOrEmpty(targetinfo.UserName) == false)
{
struInit_request.m_strID = targetinfo.UserName;
struInit_request.m_strPassword = targetinfo.Password;
struInit_request.m_strGroupID = targetinfo.GroupID;
struInit_request.m_nAuthenticationMethod = targetinfo.AuthenticationMethod;
}
else
{
struInit_request.m_strID = "";
struInit_request.m_strPassword = "";
struInit_request.m_strGroupID = "";
struInit_request.m_nAuthenticationMethod = -1;
}
struInit_request.m_strImplementationId = "DigitalPlatform";
struInit_request.m_strImplementationVersion = "1.2.0";
struInit_request.m_strImplementationName = "Z3950_library";
if (targetinfo.CharNegoUTF8 == true)
{
struInit_request.m_charNego = new CharsetNeogatiation();
struInit_request.m_charNego.EncodingLevelOID = CharsetNeogatiation.Utf8OID; // "1.0.10646.1.0.8"; // utf-8
struInit_request.m_charNego.RecordsInSelectedCharsets = (targetinfo.CharNegoRecordsUTF8 == true ? 1 : 0);
}
int nRet = tree.InitRequest(struInit_request,
targetinfo.DefaultQueryTermEncoding,
out byte[] baPackage);
if (nRet == -1)
{
return new InitialResult {
Value = -1, ErrorInfo = "CBERTree::InitRequest() fail!"
}
}
;
if (this._channel.Connected == false)
{
this.CloseConnection();
return(new InitialResult {
Value = -1, ErrorInfo = "socket尚未连接或者已经被关闭"
});
}
#if DUMPTOFILE
DeleteFile("initrequest.bin");
DumpPackage("initrequest.bin",
(char *)baPackage.GetData(),
baPackage.GetSize());
DeleteFile("initrequest.txt");
tree.m_RootNode.DumpToFile("initrequest.txt");
#endif
RecvResult result = await this._channel.SendAndRecv(
baPackage);
if (result.Value == -1)
{
return(new InitialResult(result));
}
#if DUMPTOFILE
DeleteFile("initresponse.bin");
DumpPackage("initresponse.bin",
(char *)baOutPackage.GetData(),
baOutPackage.GetSize());
#endif
////////////////////////////////////////////////////////////////
BerTree tree1 = new BerTree();
tree1.m_RootNode.BuildPartTree(result.Package,
0,
result.Package.Length,
out int nTotalLen);
#if DUMPTOFILE
DeleteFile("InitResponse.txt");
tree1.m_RootNode.DumpDebugInfoToFile("InitResponse.txt");
#endif
INIT_RESPONSE init_response = new INIT_RESPONSE();
nRet = BerTree.GetInfo_InitResponse(tree1.GetAPDuRoot(),
ref init_response,
out string strError);
if (nRet == -1)
{
return new InitialResult {
Value = -1, ErrorInfo = strError
}
}
;
if (bIgnoreReferenceID == false)
{
// 可以帮助发现旧版本dp2zserver的错误
if (struInit_request.m_strReferenceId != init_response.m_strReferenceId)
{
strError = "请求的 reference id [" + struInit_request.m_strReferenceId + "] 和 响应的 reference id [" + init_response.m_strReferenceId + "] 不一致！";
return(new InitialResult {
Value = -1, ErrorInfo = strError
});
}
}
// 2007/11/5检查version和options
bool bOption_0 = BerTree.GetBit(init_response.m_strOptions,
0);
if (bOption_0 == false)
{
strError = "服务器响应的 option bit 0 表示不支持 search";
return(new InitialResult {
Value = -1, ErrorInfo = strError
});
}
bool bOption_1 = BerTree.GetBit(init_response.m_strOptions,
1);
if (bOption_1 == false)
{
strError = "服务器响应的 option bit 1 表示不支持 present";
return(new InitialResult {
Value = -1, ErrorInfo = strError
});
}
if (init_response.m_nResult != 0)
{
strError = "Initial OK";
}
else
{
strError = "Initial被拒绝。\r\n\r\n错误码 ["
+ init_response.m_lErrorCode.ToString()
+ "]\r\n错误消息["
+ init_response.m_strErrorMessage + "]";
strResultInfo = BuildInitialResultInfo(init_response);
return(new InitialResult
{
Value = -1,
ErrorInfo = strError,
ResultInfo = strResultInfo
});
}
/*
* this->m_init_strOption = init_response.m_strOptions;
* this->m_init_lPreferredMessageSize = init_response.m_lPreferredMessageSize;
* this->m_init_lExceptionalRecordSize = init_response.m_lExceptionalRecordSize;
* this->m_init_nResult = init_response.m_nResult;
* */
this._channel.Initialized = true;
// 字符集协商
if (init_response.m_charNego != null &&
BerTree.GetBit(init_response.m_strOptions, 17) == true)
{
if (init_response.m_charNego.EncodingLevelOID == CharsetNeogatiation.Utf8OID)
{
// 临时修改检索词的编码方式。
// 但是还无法反映到PropertyDialog上。最好能反馈。
targetinfo.DefaultQueryTermEncoding = Encoding.UTF8;
targetinfo.Changed = true;
if (init_response.m_charNego.RecordsInSelectedCharsets == 1)
{
this.ForcedRecordsEncoding = Encoding.UTF8;
}
}
}
strResultInfo = BuildInitialResultInfo(init_response);
return(new InitialResult
{
Value = 0,
ErrorInfo = strError,
ResultInfo = strResultInfo
});
}
// 解释包
void menuItem_explainContent_Click(object sender,
EventArgs e)
{
TreeNode node = this.treeView_ber.SelectedNode;
if (node == null)
{
MessageBox.Show(this, "尚未选定节点");
return;
}
BerNode bernode = (BerNode)node.Tag;
if (TreeNodeLevel(node) != 1)
{
MessageBox.Show(this, "必须是Ber包根节点");
return;
}
BerNode root = bernode;
int nRet = 0;
string strError = "";
string strDebugInfo = "OK";
if (root.m_uTag == BerTree.z3950_initRequest)
{
// 观察Initial请求包
nRet = BerTree.GetInfo_InitRequest(
root,
out strDebugInfo,
out strError);
}
else if (root.m_uTag == BerTree.z3950_searchRequest)
{
nRet = BerTree.GetInfo_SearchRequest(
root,
out strDebugInfo,
out strError);
}
else if (root.m_uTag == BerTree.z3950_presentRequest)
{
nRet = BerTree.GetInfo_PresentRequest(
root,
out strDebugInfo,
out strError);
}
else if (root.m_uTag == BerTree.z3950_initResponse)
{
nRet = BerTree.GetInfo_InitResponse(root,
out strDebugInfo,
out strError);
}
else if (root.m_uTag == BerTree.z3950_searchResponse)
{
nRet = BerTree.GetInfo_SearchResponse(root,
out strDebugInfo,
out strError);
}
else if (root.m_uTag == BerTree.z3950_presentResponse)
{
RecordCollection records = null;
SEARCH_RESPONSE search_response = new SEARCH_RESPONSE();
nRet = BerTree.GetInfo_PresentResponse(root,
ref search_response,
out records,
true,
out strError);
}
if (nRet == -1)
{
MessageBox.Show(this, strError);
}
else
{
MessageBox.Show(this, strDebugInfo);
}
}
