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https://github.com/ClickHouse/ClickHouse.git
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81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
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#include "IdentifierQuoteHandler.h"
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#if USE_POCO_SQLODBC || USE_POCO_DATAODBC
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#if USE_POCO_SQLODBC
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#include <Poco/SQL/ODBC/ODBCException.h>
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#include <Poco/SQL/ODBC/SessionImpl.h>
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#include <Poco/SQL/ODBC/Utility.h>
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#define POCO_SQL_ODBC_CLASS Poco::SQL::ODBC
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#endif
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#if USE_POCO_DATAODBC
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#include <Poco/Data/ODBC/ODBCException.h>
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#include <Poco/Data/ODBC/SessionImpl.h>
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#include <Poco/Data/ODBC/Utility.h>
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#define POCO_SQL_ODBC_CLASS Poco::Data::ODBC
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#endif
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#include <Poco/Net/HTTPServerRequest.h>
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#include <Poco/Net/HTTPServerResponse.h>
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#include <Poco/Net/HTMLForm.h>
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#include <DataTypes/DataTypeFactory.h>
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#include <IO/WriteBufferFromHTTPServerResponse.h>
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#include <IO/WriteHelpers.h>
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#include <Parsers/ParserQueryWithOutput.h>
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#include <Parsers/parseQuery.h>
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#include <common/logger_useful.h>
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#include <ext/scope_guard.h>
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#include "validateODBCConnectionString.h"
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namespace DB
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{
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void IdentifierQuoteHandler::handleRequest(Poco::Net::HTTPServerRequest & request, Poco::Net::HTTPServerResponse & response)
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{
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Poco::Net::HTMLForm params(request, request.stream());
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LOG_TRACE(log, "Request URI: " + request.getURI());
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auto process_error = [&response, this](const std::string & message)
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{
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response.setStatusAndReason(Poco::Net::HTTPResponse::HTTP_INTERNAL_SERVER_ERROR);
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if (!response.sent())
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response.send() << message << std::endl;
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LOG_WARNING(log, message);
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};
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if (!params.has("connection_string"))
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{
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process_error("No 'connection_string' in request URL");
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return;
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}
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try
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{
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std::string connection_string = params.get("connection_string");
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POCO_SQL_ODBC_CLASS::SessionImpl session(validateODBCConnectionString(connection_string), DBMS_DEFAULT_CONNECT_TIMEOUT_SEC);
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SQLHDBC hdbc = session.dbc().handle();
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std::string identifier;
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SQLSMALLINT t;
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SQLRETURN r = Poco::Data::ODBC::SQLGetInfo(hdbc, SQL_IDENTIFIER_QUOTE_CHAR, NULL, 0, &t);
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if (!POCO_SQL_ODBC_CLASS::Utility::isError(r) && t > 0)
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{
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identifier.resize(static_cast<std::size_t>(t) + 2);
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r = Poco::Data::ODBC::SQLGetInfo(hdbc, SQL_IDENTIFIER_QUOTE_CHAR, &identifier[0], SQLSMALLINT((identifier.length() - 1) * sizeof(identifier[0])), &t);
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LOG_TRACE(log, "GOT IDENTIFIER: '" + identifier + "'");
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}
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LOG_TRACE(log, "FINAL IDENTIFIER: '" + identifier + "'");
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WriteBufferFromHTTPServerResponse out(request, response, keep_alive_timeout);
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writeStringBinary(identifier, out);
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}
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catch (...)
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{
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process_error("Error getting identifier quote style from ODBC '" + getCurrentExceptionMessage(false) + "'");
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tryLogCurrentException(log);
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}
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}
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}
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#endif
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