mirror of https://gitee.com/bigwinds/arangodb
329 lines
10 KiB
C++
329 lines
10 KiB
C++
////////////////////////////////////////////////////////////////////////////////
|
|
/// DISCLAIMER
|
|
///
|
|
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
|
|
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
|
|
///
|
|
/// Licensed under the Apache License, Version 2.0 (the "License");
|
|
/// you may not use this file except in compliance with the License.
|
|
/// You may obtain a copy of the License at
|
|
///
|
|
/// http://www.apache.org/licenses/LICENSE-2.0
|
|
///
|
|
/// Unless required by applicable law or agreed to in writing, software
|
|
/// distributed under the License is distributed on an "AS IS" BASIS,
|
|
/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
/// See the License for the specific language governing permissions and
|
|
/// limitations under the License.
|
|
///
|
|
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
|
|
///
|
|
/// @author Jan Steemann
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "Endpoint.h"
|
|
|
|
#include "Logger/Logger.h"
|
|
#include "Basics/socket-utils.h"
|
|
#include "Basics/StringUtils.h"
|
|
|
|
#if TRI_HAVE_LINUX_SOCKETS
|
|
#include "Rest/EndpointUnixDomain.h"
|
|
#endif
|
|
#include "Rest/EndpointIpV4.h"
|
|
#include "Rest/EndpointIpV6.h"
|
|
#include "Rest/EndpointSrv.h"
|
|
|
|
using namespace arangodb::basics;
|
|
using namespace arangodb::rest;
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief create an endpoint
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Endpoint::Endpoint(Endpoint::EndpointType type, Endpoint::DomainType domainType,
|
|
Endpoint::EncryptionType encryption,
|
|
std::string const& specification, int listenBacklog)
|
|
: _connected(false),
|
|
_type(type),
|
|
_domainType(domainType),
|
|
_encryption(encryption),
|
|
_specification(specification),
|
|
_listenBacklog(listenBacklog) {
|
|
TRI_invalidatesocket(&_socket);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief destroy an endpoint
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Endpoint::~Endpoint() {}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief return the endpoint specification in a unified form
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
std::string Endpoint::getUnifiedForm(std::string const& specification) {
|
|
if (specification.size() < 7) {
|
|
return "";
|
|
}
|
|
|
|
std::string copy = specification;
|
|
StringUtils::trimInPlace(copy);
|
|
copy = StringUtils::tolower(copy);
|
|
|
|
if (specification[specification.size() - 1] == '/') {
|
|
// address ends with a slash => remove
|
|
copy = copy.substr(0, copy.size() - 1);
|
|
}
|
|
|
|
// read protocol from string
|
|
if (StringUtils::isPrefix(copy, "http@")) {
|
|
copy = copy.substr(5);
|
|
}
|
|
|
|
#if TRI_HAVE_LINUX_SOCKETS
|
|
if (StringUtils::isPrefix(copy, "unix://")) {
|
|
// unix socket
|
|
return copy;
|
|
}
|
|
#else
|
|
// no unix socket for windows
|
|
if (StringUtils::isPrefix(copy, "unix://")) {
|
|
// unix socket
|
|
return "";
|
|
}
|
|
#endif
|
|
else if (StringUtils::isPrefix(copy, "srv://")) {
|
|
return copy;
|
|
} else if (!StringUtils::isPrefix(copy, "ssl://") &&
|
|
!StringUtils::isPrefix(copy, "tcp://")) {
|
|
// invalid type
|
|
return "";
|
|
}
|
|
|
|
// tcp/ip or ssl
|
|
size_t found;
|
|
std::string temp = copy.substr(6, copy.length()); // strip tcp:// or ssl://
|
|
|
|
if (temp[0] == '[') {
|
|
// ipv6
|
|
found = temp.find("]:", 1);
|
|
if (found != std::string::npos && found > 2 && found + 2 < temp.size()) {
|
|
// hostname and port (e.g. [address]:port)
|
|
return copy;
|
|
}
|
|
|
|
found = temp.find("]", 1);
|
|
if (found != std::string::npos && found > 2 && found + 1 == temp.size()) {
|
|
// hostname only (e.g. [address])
|
|
return copy + ":" + StringUtils::itoa(EndpointIp::_defaultPort);
|
|
}
|
|
|
|
// invalid address specification
|
|
return "";
|
|
}
|
|
|
|
// ipv4
|
|
found = temp.find(':');
|
|
|
|
if (found != std::string::npos && found + 1 < temp.size()) {
|
|
// hostname and port
|
|
return copy;
|
|
}
|
|
|
|
// hostname only
|
|
return copy + ":" + StringUtils::itoa(EndpointIp::_defaultPort);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief create a client endpoint object from a string value
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Endpoint* Endpoint::clientFactory(std::string const& specification) {
|
|
return Endpoint::factory(ENDPOINT_CLIENT, specification, 0, false);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief create a server endpoint object from a string value
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Endpoint* Endpoint::serverFactory(std::string const& specification,
|
|
int listenBacklog, bool reuseAddress) {
|
|
return Endpoint::factory(ENDPOINT_SERVER, specification, listenBacklog,
|
|
reuseAddress);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief create an endpoint object from a string value
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
Endpoint* Endpoint::factory(const Endpoint::EndpointType type,
|
|
std::string const& specification, int listenBacklog,
|
|
bool reuseAddress) {
|
|
if (specification.size() < 7) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (listenBacklog > 0 && type == ENDPOINT_CLIENT) {
|
|
// backlog is only allowed for server endpoints
|
|
TRI_ASSERT(false);
|
|
}
|
|
|
|
if (listenBacklog == 0 && type == ENDPOINT_SERVER) {
|
|
// use some default value
|
|
listenBacklog = 10;
|
|
}
|
|
|
|
std::string copy = specification;
|
|
if (specification[specification.size() - 1] == '/') {
|
|
// address ends with a slash => remove
|
|
copy = copy.substr(0, copy.size() - 1);
|
|
}
|
|
|
|
// read protocol from string
|
|
size_t found = copy.find('@');
|
|
if (found != std::string::npos) {
|
|
std::string protoString = StringUtils::tolower(copy.substr(0, found));
|
|
if (protoString == "http") {
|
|
copy = copy.substr(strlen("http@"));
|
|
} else {
|
|
// invalid protocol
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
EncryptionType encryption = ENCRYPTION_NONE;
|
|
std::string domainType = StringUtils::tolower(copy.substr(0, 7));
|
|
|
|
if (StringUtils::isPrefix(domainType, "ssl://")) {
|
|
// ssl
|
|
encryption = ENCRYPTION_SSL;
|
|
}
|
|
#if TRI_HAVE_LINUX_SOCKETS
|
|
else if (StringUtils::isPrefix(domainType, "unix://")) {
|
|
// unix socket
|
|
return new EndpointUnixDomain(type, specification, listenBacklog,
|
|
copy.substr(strlen("unix://")));
|
|
}
|
|
#else
|
|
// no unix socket for windows
|
|
else if (StringUtils::isPrefix(domainType, "unix://")) {
|
|
// unix socket
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
else if (StringUtils::isPrefix(domainType, "srv://")) {
|
|
if (type != ENDPOINT_CLIENT) {
|
|
return nullptr;
|
|
}
|
|
|
|
return new EndpointSrv(specification.substr(6));
|
|
}
|
|
|
|
else if (!StringUtils::isPrefix(domainType, "tcp://")) {
|
|
// invalid type
|
|
return nullptr;
|
|
}
|
|
|
|
// tcp/ip or ssl
|
|
copy = copy.substr(strlen("tcp://"), copy.length());
|
|
|
|
if (copy[0] == '[') {
|
|
// ipv6
|
|
found = copy.find("]:", 1);
|
|
if (found != std::string::npos && found > 2 && found + 2 < copy.size()) {
|
|
// hostname and port (e.g. [address]:port)
|
|
uint16_t port = (uint16_t)StringUtils::uint32(copy.substr(found + 2));
|
|
std::string portStr = copy.substr(1, found - 1);
|
|
return new EndpointIpV6(type, encryption, specification, listenBacklog,
|
|
reuseAddress, portStr, port);
|
|
}
|
|
|
|
found = copy.find("]", 1);
|
|
if (found != std::string::npos && found > 2 && found + 1 == copy.size()) {
|
|
// hostname only (e.g. [address])
|
|
std::string portStr = copy.substr(1, found - 1);
|
|
return new EndpointIpV6(type, encryption, specification, listenBacklog,
|
|
reuseAddress, portStr, EndpointIp::_defaultPort);
|
|
}
|
|
|
|
// invalid address specification
|
|
return nullptr;
|
|
}
|
|
|
|
// ipv4
|
|
found = copy.find(':');
|
|
|
|
if (found != std::string::npos && found + 1 < copy.size()) {
|
|
// hostname and port
|
|
uint16_t port = (uint16_t)StringUtils::uint32(copy.substr(found + 1));
|
|
std::string portStr = copy.substr(0, found);
|
|
return new EndpointIpV4(type, encryption, specification, listenBacklog,
|
|
reuseAddress, portStr, port);
|
|
}
|
|
|
|
// hostname only
|
|
return new EndpointIpV4(type, encryption, specification, listenBacklog,
|
|
reuseAddress, copy, EndpointIp::_defaultPort);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief compare two endpoints
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool Endpoint::operator==(Endpoint const& that) const {
|
|
return getSpecification() == that.getSpecification();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief return the default endpoint
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
std::string const Endpoint::getDefaultEndpoint() {
|
|
return "tcp://" + EndpointIp::_defaultHost + ":" +
|
|
StringUtils::itoa(EndpointIp::_defaultPort);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief set socket timeout
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool Endpoint::setTimeout(TRI_socket_t s, double timeout) {
|
|
return TRI_setsockopttimeout(s, timeout);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/// @brief set common socket flags
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
bool Endpoint::setSocketFlags(TRI_socket_t s) {
|
|
if (_encryption == ENCRYPTION_SSL && _type == ENDPOINT_CLIENT) {
|
|
// SSL client endpoints are not set to non-blocking
|
|
return true;
|
|
}
|
|
|
|
// set to non-blocking, executed for both client and server endpoints
|
|
bool ok = TRI_SetNonBlockingSocket(s);
|
|
|
|
if (!ok) {
|
|
LOG(ERR) << "cannot switch to non-blocking: " << errno << " ("
|
|
<< strerror(errno) << ")";
|
|
|
|
return false;
|
|
}
|
|
|
|
// set close-on-exec flag, executed for both client and server endpoints
|
|
ok = TRI_SetCloseOnExecSocket(s);
|
|
|
|
if (!ok) {
|
|
LOG(ERR) << "cannot set close-on-exit: " << errno << " (" << strerror(errno)
|
|
<< ")";
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|