mirror of https://gitee.com/bigwinds/arangodb
263 lines
9.4 KiB
C++
263 lines
9.4 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// @brief connection endpoints
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///
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/// @file
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///
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/// DISCLAIMER
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///
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/// Copyright 2010-2011 triagens GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is triAGENS GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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/// @author Copyright 2012, triAGENS GmbH, Cologne, Germany
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////////////////////////////////////////////////////////////////////////////////
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#include "BasicsC/socket-utils.h"
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#include "Basics/StringUtils.h"
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#include "Basics/FileUtils.h"
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#include "Logger/Logger.h"
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#include "EndpointUnixDomain.h"
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using namespace triagens::basics;
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using namespace triagens::rest;
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// -----------------------------------------------------------------------------
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// --SECTION-- Endpoint
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Rest
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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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// --SECTION-- constructors / destructors
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Rest
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create an abstract endpoint
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////////////////////////////////////////////////////////////////////////////////
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EndpointBase::EndpointBase (const EndpointBase::EndPointType endpointType,
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const EndpointBase::DomainType domainType,
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const EndpointBase::ProtocolType protocolType,
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const EndpointBase::EncryptionType encryptionType,
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const std::string& specification) :
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_connected(false),
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_socket(0),
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_endpointType(endpointType),
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_domainType(domainType),
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_protocol(protocolType),
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_encryption(encryptionType),
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_specification(specification) {
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// -----------------------------------------------------------------------------
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// --SECTION-- public methods
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// -----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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/// @addtogroup Rest
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/// @{
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create a client endpoint object from a string value
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////////////////////////////////////////////////////////////////////////////////
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EndpointBase* EndpointBase::clientFactory (const std::string& specification) {
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return EndpointBase::factory(ENDPOINT_CLIENT, specification);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create a server endpoint object from a string value
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////////////////////////////////////////////////////////////////////////////////
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EndpointBase* EndpointBase::serverFactory (const std::string& specification) {
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return EndpointBase::factory(ENDPOINT_SERVER, specification);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief create an endpoint object from a string value
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////////////////////////////////////////////////////////////////////////////////
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EndpointBase* EndpointBase::factory (const EndpointBase::EndpointType endpointType,
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const std::string& specification) {
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if (specification.size() < 7) {
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return 0;
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}
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string copy = specification;
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if (specification[specification.size() - 1] == '/') {
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// address ends with a slash => remove
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copy = copy.substr(0, copy.size() - 1);
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}
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// default protocol is HTTP
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EndpointBase::ProtocolType protocol = PROTOCOL_HTTP;
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// read protocol from string
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size_t found = copy.find('@');
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if (found != string::npos) {
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string protoString = StringUtils::tolower(copy.substr(0, found));
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if (protoString == "http") {
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copy = copy.substr(strlen("http@"));
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}
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else {
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// invalid protocol
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return 0;
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}
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}
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EndpointBase::EncryptionType encryption = ENCRYPTION_NONE;
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string domainType = StringUtils::tolower(copy.substr(0, 7));
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if (StringUtils::isPrefix(domainType, "unix://")) {
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// unix socket
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return new EndpointUnix(endpointType, protocol, specification, copy.substr(strlen("unix://")));
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}
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else if (StringUtils::isPrefix(domainType, "ssl://")) {
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// ssl
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encryption = ENCRYPTION_SSL;
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}
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else if (! StringUtils::isPrefix(domainType, "tcp://")) {
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// invalid domain type
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return 0;
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}
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// tcp/ip or ssl
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copy = copy.substr(strlen("tcp://"), copy.length());
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if (copy[0] == '[') {
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// ipv6
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found = copy.find("]:", 1);
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if (found != string::npos && found + 2 < copy.size()) {
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// hostname and port (e.g. [address]:port)
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uint16_t port = (uint16_t) StringUtils::uint32(copy.substr(found + 2));
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return new EndpointIpV6(endpointType, protocol, encryption, specification, copy.substr(0, found + 1), port);
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}
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found = copy.find("]", 1);
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if (found != string::npos && found + 1 == copy.size()) {
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// hostname only (e.g. [address])
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return new EndpointIpV6(endpointType, protocol, encryption, specification, copy.substr(0, found + 1), EndpointIp::_defaultPort);
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}
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// invalid address specification
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return 0;
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}
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// ipv4
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found = copy.find(':');
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if (found != string::npos && found + 1 < copy.size()) {
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// hostname and port
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uint16_t port = (uint16_t) StringUtils::uint32(copy.substr(found + 1));
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return new EndpointIpV4(endpointType, protocol, encryption, specification, copy.substr(0, found), port);
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}
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// hostname only
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return new EndpointIpV4(endpointType, protocol, encryption, specification, copy, EndpointIp::_defaultPort);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief compare two endpoints
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////////////////////////////////////////////////////////////////////////////////
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bool EndpointBase::operator== (const EndpointBase& that) const {
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return getSpecification() == that.getSpecification();
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief return the default endpoint
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////////////////////////////////////////////////////////////////////////////////
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const std::string EndpointBase::getDefaultEndpoint () {
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return "tcp://" + EndpointIp::_defaultHost + ":" + StringUtils::itoa(EndpointIp::_defaultPort);
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set socket timeout
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////////////////////////////////////////////////////////////////////////////////
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void EndpointBase::setTimeout (socket_t s, double timeout) {
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struct timeval tv;
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tv.tv_sec = (uint64_t) timeout;
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tv.tv_usec = ((uint64_t) (timeout * 1000000.0)) % 1000000;
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setsockopt(s, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
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setsockopt(s, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @brief set common socket flags
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////////////////////////////////////////////////////////////////////////////////
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bool EndpointBase::setSocketFlags (socket_t _socket) {
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if (_encryption == ENCRYPTION_SSL && _type == ENDPOINT_CLIENT) {
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// SSL client endpoints are not set to non-blocking
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return true;
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}
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// set to non-blocking, executed for both client and server endpoints
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bool ok = TRI_SetNonBlockingSocket(_socket);
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if (!ok) {
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LOGGER_ERROR << "cannot switch to non-blocking: " << errno << " (" << strerror(errno) << ")";
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return false;
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}
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// set close-on-exec flag, executed for both client and server endpoints
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ok = TRI_SetCloseOnExecSocket(_socket);
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if (!ok) {
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LOGGER_ERROR << "cannot set close-on-exit: " << errno << " (" << strerror(errno) << ")";
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return false;
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}
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return true;
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}
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////////////////////////////////////////////////////////////////////////////////
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/// @}
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////////////////////////////////////////////////////////////////////////////////
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// Local Variables:
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// mode: outline-minor
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// outline-regexp: "^\\(/// @brief\\|/// {@inheritDoc}\\|/// @addtogroup\\|// --SECTION--\\|/// @\\}\\)"
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// End:
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