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Cleanup AbstractCommand take 2 

Decided to keep the 'if(' -> 'if (' stuff, as I formatted the whole file
and so it is internally consistent within the file. Also, too much
hassle.
pull/235/head
Nils Maier 2014-05-29 18:25:00 +02:00
parent e57d330111
commit 8cada49765
5 changed files with 554 additions and 464 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

544
src/AbstractCommand.cc
View File

@ -74,10 +74,12 @@
namespace aria2 {
AbstractCommand::AbstractCommand(cuid_t cuid,
AbstractCommand::AbstractCommand(
cuid_t cuid,
const std::shared_ptr<Request>& req,
const std::shared_ptr<FileEntry>& fileEntry,
RequestGroup* requestGroup, DownloadEngine* e,
RequestGroup* requestGroup,
DownloadEngine* e,
const std::shared_ptr<SocketCore>& s,
const std::shared_ptr<SocketRecvBuffer>& socketRecvBuffer,
bool incNumConnection)
@ -111,7 +113,8 @@ AbstractCommand::AbstractCommand(cuid_t cuid,
#endif // ENABLE_ASYNC_DNS
}
AbstractCommand::~AbstractCommand() {
AbstractCommand::~AbstractCommand()
{
disableReadCheckSocket();
disableWriteCheckSocket();
#ifdef ENABLE_ASYNC_DNS
@ -124,8 +127,8 @@ AbstractCommand::~AbstractCommand() {
}
}
void AbstractCommand::useFasterRequest
(const std::shared_ptr<Request>& fasterRequest)
void
AbstractCommand::useFasterRequest(const std::shared_ptr<Request>& fasterRequest)
{
A2_LOG_INFO(fmt("CUID#%" PRId64 " - Use faster Request hostname=%s, port=%u",
getCuid(),
@ -134,13 +137,49 @@ void AbstractCommand::useFasterRequest
// Cancel current Request object and use faster one.
fileEntry_->removeRequest(req_);
e_->setNoWait(true);
e_->addCommand(InitiateConnectionCommandFactory::
createInitiateConnectionCommand
(getCuid(), fasterRequest, fileEntry_, requestGroup_, e_));
e_->addCommand(
InitiateConnectionCommandFactory::createInitiateConnectionCommand(
getCuid(), fasterRequest, fileEntry_, requestGroup_, e_));
}
bool AbstractCommand::execute() {
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - socket: read:%d, write:%d, hup:%d, err:%d",
bool AbstractCommand::shouldProcess() const
{
if (checkSocketIsReadable_) {
if (readEventEnabled()) {
return true;
}
if (socketRecvBuffer_ && !socketRecvBuffer_->bufferEmpty()) {
return true;
}
}
if (checkSocketIsWritable_ && writeEventEnabled()) {
return true;
}
#ifdef ENABLE_ASYNC_DNS
const auto resolverChecked = asyncNameResolverMan_->resolverChecked();
if (resolverChecked && asyncNameResolverMan_->getStatus() != 0) {
return true;
}
if (!checkSocketIsReadable_ && !checkSocketIsWritable_ && !resolverChecked) {
return true;
}
#else // ENABLE_ASYNC_DNS
if (!checkSocketIsReadable_ && !checkSocketIsWritable_) {
return true;
}
#endif // ENABLE_ASYNC_DNS
return noCheck();
}
bool AbstractCommand::execute()
{
A2_LOG_DEBUG(fmt("CUID#%" PRId64
" - socket: read:%d, write:%d, hup:%d, err:%d",
getCuid(),
readEventEnabled(),
writeEventEnabled(),
@ -150,20 +189,28 @@ bool AbstractCommand::execute() {
if (requestGroup_->downloadFinished() || requestGroup_->isHaltRequested()) {
return true;
}
if (req_ && req_->removalRequested()) {
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Discard original URI=%s because it is"
A2_LOG_DEBUG(fmt("CUID#%" PRId64
" - Discard original URI=%s because it is"
" requested.",
getCuid(), req_->getUri().c_str()));
getCuid(),
req_->getUri().c_str()));
return prepareForRetry(0);
}
auto sm = getSegmentMan();
if (getPieceStorage()) {
segments_.clear();
getSegmentMan()->getInFlightSegment(segments_, getCuid());
sm->getInFlightSegment(segments_, getCuid());
if (req_ && segments_.empty()) {
// This command previously has assigned segments, but it is
// canceled. So discard current request chain. Plus, if no
// segment is available when http pipelining is used.
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - It seems previously assigned segments"
A2_LOG_DEBUG(fmt("CUID#%" PRId64
" - It seems previously assigned segments"
" are canceled. Restart.",
getCuid()));
// Request::isPipeliningEnabled() == true means aria2
@ -174,12 +221,12 @@ bool AbstractCommand::execute() {
}
return prepareForRetry(0);
}
// TODO it is not needed to check other PeerStats every time.
// Find faster Request when no segment split is allowed.
if (req_ && fileEntry_->countPooledRequest() > 0 &&
requestGroup_->getTotalLength()-requestGroup_->getCompletedLength()
< calculateMinSplitSize()*2) {
std::shared_ptr<Request> fasterRequest = fileEntry_->findFasterRequest(req_);
requestGroup_->getPendingLength() < calculateMinSplitSize() * 2) {
auto fasterRequest = fileEntry_->findFasterRequest(req_);
if (fasterRequest) {
useFasterRequest(fasterRequest);
return true;
@ -196,31 +243,22 @@ bool AbstractCommand::execute() {
if (getOption()->getAsBool(PREF_SELECT_LEAST_USED_HOST)) {
getDownloadEngine()->getRequestGroupMan()->getUsedHosts(usedHosts);
}
std::shared_ptr<Request> fasterRequest =
fileEntry_->findFasterRequest
(req_, usedHosts, e_->getRequestGroupMan()->getServerStatMan());
auto fasterRequest = fileEntry_->findFasterRequest(
req_, usedHosts, e_->getRequestGroupMan()->getServerStatMan());
if (fasterRequest) {
useFasterRequest(fasterRequest);
return true;
}
}
}
if((checkSocketIsReadable_ &&
(readEventEnabled() ||
(socketRecvBuffer_ && !socketRecvBuffer_->bufferEmpty()))) ||
(checkSocketIsWritable_ && writeEventEnabled()) ||
hupEventEnabled() ||
#ifdef ENABLE_ASYNC_DNS
(asyncNameResolverMan_->resolverChecked() &&
asyncNameResolverMan_->getStatus() != 0) ||
#endif // ENABLE_ASYNC_DNS
(!checkSocketIsReadable_ && !checkSocketIsWritable_
#ifdef ENABLE_ASYNC_DNS
&& !asyncNameResolverMan_->resolverChecked()
#endif // ENABLE_ASYNC_DNS
) || noCheck()) {
if (shouldProcess()) {
checkPoint_ = global::wallclock();
if(getPieceStorage()) {
if (!getPieceStorage()) {
return executeInternal();
}
if (!req_ || req_->getMaxPipelinedRequest() == 1 ||
// Why the following condition is necessary? That's because
// For single file download, SegmentMan::getSegment(cuid)
@ -229,55 +267,55 @@ bool AbstractCommand::execute() {
size_t maxSegments = req_ ? req_->getMaxPipelinedRequest() : 1;
size_t minSplitSize = calculateMinSplitSize();
while (segments_.size() < maxSegments) {
std::shared_ptr<Segment> segment =
getSegmentMan()->getSegment(getCuid(), minSplitSize);
auto segment = sm->getSegment(getCuid(), minSplitSize);
if (!segment) {
break;
} else {
segments_.push_back(segment);
}
segments_.push_back(segment);
}
if (segments_.empty()) {
// TODO socket could be pooled here if pipelining is
// enabled... Hmm, I don't think if pipelining is enabled
// it does not go here.
A2_LOG_INFO(fmt(MSG_NO_SEGMENT_AVAILABLE,
getCuid()));
A2_LOG_INFO(fmt(MSG_NO_SEGMENT_AVAILABLE, getCuid()));
// When all segments are ignored in SegmentMan, there are
// no URIs available, so don't retry.
if(getSegmentMan()->allSegmentsIgnored()) {
if (sm->allSegmentsIgnored()) {
A2_LOG_DEBUG("All segments are ignored.");
// This will execute other idle Commands and let them
// finish quickly.
e_->setRefreshInterval(0);
return true;
} else {
}
return prepareForRetry(1);
}
}
} else {
else {
// For multi-file downloads
size_t minSplitSize = calculateMinSplitSize();
size_t maxSegments = req_->getMaxPipelinedRequest();
if (segments_.size() < maxSegments) {
getSegmentMan()->getSegment
(segments_, getCuid(), minSplitSize, fileEntry_, maxSegments);
sm->getSegment(
segments_, getCuid(), minSplitSize, fileEntry_, maxSegments);
}
if (segments_.empty()) {
return prepareForRetry(0);
}
}
}
return executeInternal();
} else if(errorEventEnabled()) {
throw DL_RETRY_EX(fmt(MSG_NETWORK_PROBLEM,
socket_->getSocketError().c_str()));
} else {
}
if (errorEventEnabled()) {
throw DL_RETRY_EX(
fmt(MSG_NETWORK_PROBLEM, socket_->getSocketError().c_str()));
}
if (checkPoint_.difference(global::wallclock()) >= timeout_) {
// timeout triggers ServerStat error state.
std::shared_ptr<ServerStat> ss =
e_->getRequestGroupMan()->getOrCreateServerStat(req_->getHost(),
req_->getProtocol());
auto ss = e_->getRequestGroupMan()->getOrCreateServerStat(
req_->getHost(), req_->getProtocol());
ss->setError();
// When DNS query was timeout, req_->getConnectedAddr() is
// empty.
@ -290,56 +328,53 @@ bool AbstractCommand::execute() {
req_->getConnectedAddr(),
req_->getConnectedPort());
}
if(e_->findCachedIPAddress
(req_->getConnectedHostname(), req_->getConnectedPort()).empty()) {
if (e_->findCachedIPAddress(req_->getConnectedHostname(),
req_->getConnectedPort()).empty()) {
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - All IP addresses were marked bad."
" Removing Entry.",
getCuid()));
e_->removeCachedIPAddress
(req_->getConnectedHostname(), req_->getConnectedPort());
e_->removeCachedIPAddress(req_->getConnectedHostname(),
req_->getConnectedPort());
}
throw DL_RETRY_EX2(EX_TIME_OUT, error_code::TIME_OUT);
}
addCommandSelf();
return false;
}
} catch(DlAbortEx& err) {
catch (DlAbortEx& err) {
requestGroup_->setLastErrorCode(err.getErrorCode());
if (req_) {
A2_LOG_ERROR_EX(fmt(MSG_DOWNLOAD_ABORTED,
getCuid(),
req_->getUri().c_str()),
DL_ABORT_EX2(fmt("URI=%s", req_->getCurrentUri().c_str()),
err));
A2_LOG_ERROR_EX(
fmt(MSG_DOWNLOAD_ABORTED, getCuid(), req_->getUri().c_str()),
DL_ABORT_EX2(fmt("URI=%s", req_->getCurrentUri().c_str()), err));
fileEntry_->addURIResult(req_->getUri(), err.getErrorCode());
if (err.getErrorCode() == error_code::CANNOT_RESUME) {
requestGroup_->increaseResumeFailureCount();
}
} else {
}
else {
A2_LOG_DEBUG_EX(EX_EXCEPTION_CAUGHT, err);
}
onAbort();
tryReserved();
return true;
} catch(DlRetryEx& err) {
}
catch (DlRetryEx& err) {
assert(req_);
A2_LOG_INFO_EX(fmt(MSG_RESTARTING_DOWNLOAD,
getCuid(), req_->getUri().c_str()),
DL_RETRY_EX2(fmt("URI=%s", req_->getCurrentUri().c_str()),
err));
A2_LOG_INFO_EX(
fmt(MSG_RESTARTING_DOWNLOAD, getCuid(), req_->getUri().c_str()),
DL_RETRY_EX2(fmt("URI=%s", req_->getCurrentUri().c_str()), err));
req_->addTryCount();
req_->resetRedirectCount();
req_->resetUri();
const int maxTries = getOption()->getAsInt(PREF_MAX_TRIES);
bool isAbort = maxTries != 0 && req_->getTryCount() >= maxTries;
if (isAbort) {
A2_LOG_INFO(fmt(MSG_MAX_TRY,
getCuid(),
req_->getTryCount()));
A2_LOG_ERROR_EX(fmt(MSG_DOWNLOAD_ABORTED,
getCuid(),
req_->getUri().c_str()),
err);
A2_LOG_INFO(fmt(MSG_MAX_TRY, getCuid(), req_->getTryCount()));
A2_LOG_ERROR_EX(
fmt(MSG_DOWNLOAD_ABORTED, getCuid(), req_->getUri().c_str()), err);
fileEntry_->addURIResult(req_->getUri(), err.getErrorCode());
requestGroup_->setLastErrorCode(err.getErrorCode());
if (err.getErrorCode() == error_code::CANNOT_RESUME) {
@ -348,20 +383,19 @@ bool AbstractCommand::execute() {
onAbort();
tryReserved();
return true;
} else {
}
Timer wakeTime(global::wallclock());
wakeTime.advance(getOption()->getAsInt(PREF_RETRY_WAIT));
req_->setWakeTime(wakeTime);
return prepareForRetry(0);
}
} catch(DownloadFailureException& err) {
catch (DownloadFailureException& err) {
requestGroup_->setLastErrorCode(err.getErrorCode());
if (req_) {
A2_LOG_ERROR_EX(fmt(MSG_DOWNLOAD_ABORTED,
getCuid(),
req_->getUri().c_str()),
DL_ABORT_EX2(fmt("URI=%s", req_->getCurrentUri().c_str()),
err));
A2_LOG_ERROR_EX(
fmt(MSG_DOWNLOAD_ABORTED, getCuid(), req_->getUri().c_str()),
DL_ABORT_EX2(fmt("URI=%s", req_->getCurrentUri().c_str()), err));
fileEntry_->addURIResult(req_->getUri(), err.getErrorCode());
} else {
A2_LOG_ERROR_EX(EX_EXCEPTION_CAUGHT, err);
@ -372,10 +406,10 @@ bool AbstractCommand::execute() {
}
}
void AbstractCommand::tryReserved() {
void AbstractCommand::tryReserved()
{
if (getDownloadContext()->getFileEntries().size() == 1) {
const std::shared_ptr<FileEntry>& entry =
getDownloadContext()->getFirstFileEntry();
const auto& entry = getDownloadContext()->getFirstFileEntry();
// Don't create new command if currently file length is unknown
// and there are no URI left. Because file length is unknown, we
// can assume that there are no in-flight request object.
@ -387,15 +421,16 @@ void AbstractCommand::tryReserved() {
return;
}
}
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Trying reserved/pooled request.",
getCuid()));
A2_LOG_DEBUG(
fmt("CUID#%" PRId64 " - Trying reserved/pooled request.", getCuid()));
std::vector<std::unique_ptr<Command>> commands;
requestGroup_->createNextCommand(commands, e_, 1);
e_->setNoWait(true);
e_->addCommand(std::move(commands));
}
bool AbstractCommand::prepareForRetry(time_t wait) {
bool AbstractCommand::prepareForRetry(time_t wait)
{
if (getPieceStorage()) {
getSegmentMan()->cancelSegment(getCuid());
}
@ -408,17 +443,19 @@ bool AbstractCommand::prepareForRetry(time_t wait) {
fileEntry_->poolRequest(req_);
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Pooling request URI=%s",
getCuid(), req_->getUri().c_str()));
getCuid(),
req_->getUri().c_str()));
if (getSegmentMan()) {
getSegmentMan()->recognizeSegmentFor(fileEntry_);
}
}
auto command = make_unique<CreateRequestCommand>(getCuid(),
requestGroup_, e_);
auto command =
make_unique<CreateRequestCommand>(getCuid(), requestGroup_, e_);
if (wait == 0) {
e_->setNoWait(true);
} else {
}
else {
// We don't use wait so that Command can be executed by
// DownloadEngine::setRefreshInterval(0).
command->setStatus(Command::STATUS_INACTIVE);
@ -427,26 +464,34 @@ bool AbstractCommand::prepareForRetry(time_t wait) {
return true;
}
void AbstractCommand::onAbort() {
void AbstractCommand::onAbort()
{
if (req_) {
fileEntry_->removeIdenticalURI(req_->getUri());
fileEntry_->removeRequest(req_);
}
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Aborting download",
getCuid()));
if(getPieceStorage()) {
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Aborting download", getCuid()));
if (!getPieceStorage()) {
return;
}
getSegmentMan()->cancelSegment(getCuid());
// Don't do following process if BitTorrent is involved or files
// in DownloadContext is more than 1. The latter condition is
// limitation of current implementation.
if(!getOption()->getAsBool(PREF_ALWAYS_RESUME) &&
fileEntry_ &&
getDownloadContext()->getNetStat().getSessionDownloadLength() == 0 &&
!requestGroup_->p2pInvolved() &&
getDownloadContext()->getFileEntries().size() == 1) {
if (getOption()->getAsBool(PREF_ALWAYS_RESUME) || !fileEntry_ ||
getDownloadContext()->getNetStat().getSessionDownloadLength() != 0 ||
requestGroup_->p2pInvolved() ||
getDownloadContext()->getFileEntries().size() != 1) {
return;
}
const int maxTries = getOption()->getAsInt(PREF_MAX_RESUME_FAILURE_TRIES);
if((maxTries > 0 && requestGroup_->getResumeFailureCount() >= maxTries)||
fileEntry_->emptyRequestUri()) {
if (!(maxTries > 0 && requestGroup_->getResumeFailureCount() >= maxTries) &&
!fileEntry_->emptyRequestUri()) {
return;
}
// Local file exists, but given servers(or at least contacted
// ones) doesn't support resume. Let's restart download from
// scratch.
@ -461,13 +506,18 @@ void AbstractCommand::onAbort() {
getOption()->put(PREF_ALWAYS_RESUME, A2_V_TRUE);
std::deque<URIResult> res;
fileEntry_->extractURIResult(res, error_code::CANNOT_RESUME);
if(!res.empty()) {
if (res.empty()) {
return;
}
getSegmentMan()->cancelAllSegments();
getSegmentMan()->eraseSegmentWrittenLengthMemo();
getPieceStorage()->markPiecesDone(0);
std::vector<std::string> uris;
uris.reserve(res.size());
std::transform(res.begin(), res.end(), std::back_inserter(uris),
std::transform(res.begin(),
res.end(),
std::back_inserter(uris),
std::mem_fn(&URIResult::getURI));
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - %lu URIs found.",
getCuid(),
@ -475,83 +525,93 @@ void AbstractCommand::onAbort() {
fileEntry_->addUris(uris.begin(), uris.end());
getSegmentMan()->recognizeSegmentFor(fileEntry_);
}
}
}
}
void AbstractCommand::disableReadCheckSocket()
{
if (!checkSocketIsReadable_) {
return;
}
void AbstractCommand::disableReadCheckSocket() {
if(checkSocketIsReadable_) {
e_->deleteSocketForReadCheck(readCheckTarget_, this);
checkSocketIsReadable_ = false;
readCheckTarget_.reset();
}
}
void AbstractCommand::setReadCheckSocket
(const std::shared_ptr<SocketCore>& socket) {
void
AbstractCommand::setReadCheckSocket(const std::shared_ptr<SocketCore>& socket)
{
if (!socket->isOpen()) {
disableReadCheckSocket();
} else {
return;
}
if (checkSocketIsReadable_) {
if (*readCheckTarget_ != *socket) {
e_->deleteSocketForReadCheck(readCheckTarget_, this);
e_->addSocketForReadCheck(socket, this);
readCheckTarget_ = socket;
}
} else {
return;
}
e_->addSocketForReadCheck(socket, this);
checkSocketIsReadable_ = true;
readCheckTarget_ = socket;
}
}
}
void AbstractCommand::setReadCheckSocketIf
(const std::shared_ptr<SocketCore>& socket, bool pred)
void
AbstractCommand::setReadCheckSocketIf(const std::shared_ptr<SocketCore>& socket,
bool pred)
{
if (pred) {
setReadCheckSocket(socket);
} else {
disableReadCheckSocket();
}
return;
}
void AbstractCommand::disableWriteCheckSocket() {
if(checkSocketIsWritable_) {
disableReadCheckSocket();
}
void AbstractCommand::disableWriteCheckSocket()
{
if (!checkSocketIsWritable_) {
return;
}
e_->deleteSocketForWriteCheck(writeCheckTarget_, this);
checkSocketIsWritable_ = false;
writeCheckTarget_.reset();
}
}
void AbstractCommand::setWriteCheckSocket
(const std::shared_ptr<SocketCore>& socket) {
void
AbstractCommand::setWriteCheckSocket(const std::shared_ptr<SocketCore>& socket)
{
if (!socket->isOpen()) {
disableWriteCheckSocket();
} else {
return;
}
if (checkSocketIsWritable_) {
if (*writeCheckTarget_ != *socket) {
e_->deleteSocketForWriteCheck(writeCheckTarget_, this);
e_->addSocketForWriteCheck(socket, this);
writeCheckTarget_ = socket;
}
} else {
return;
}
e_->addSocketForWriteCheck(socket, this);
checkSocketIsWritable_ = true;
writeCheckTarget_ = socket;
}
}
}
void AbstractCommand::setWriteCheckSocketIf
(const std::shared_ptr<SocketCore>& socket, bool pred)
void AbstractCommand::setWriteCheckSocketIf(
const std::shared_ptr<SocketCore>& socket, bool pred)
{
if (pred) {
setWriteCheckSocket(socket);
} else {
disableWriteCheckSocket();
return;
}
disableWriteCheckSocket();
}
void AbstractCommand::swapSocket(std::shared_ptr<SocketCore>& socket)
@ -564,14 +624,15 @@ void AbstractCommand::swapSocket(std::shared_ptr<SocketCore>& socket)
namespace {
// Constructs proxy URI, merging username and password if they are
// defined.
std::string makeProxyUri
(PrefPtr proxyPref,
std::string makeProxyUri(PrefPtr proxyPref,
PrefPtr proxyUser,
PrefPtr proxyPasswd,
const Option* option)
{
uri::UriStruct us;
if(uri::parse(us, option->get(proxyPref))) {
if (!uri::parse(us, option->get(proxyPref))) {
return "";
}
if (option->defined(proxyUser)) {
us.username = option->get(proxyUser);
}
@ -580,60 +641,55 @@ std::string makeProxyUri
us.hasPassword = true;
}
return uri::construct(us);
} else {
return "";
}
}
} // namespace
namespace {
// Returns proxy option value for the given protocol.
std::string getProxyOptionFor
(PrefPtr proxyPref,
std::string getProxyOptionFor(PrefPtr proxyPref,
PrefPtr proxyUser,
PrefPtr proxyPasswd,
const Option* option)
{
std::string uri = makeProxyUri(proxyPref, proxyUser, proxyPasswd, option);
if (uri.empty()) {
return makeProxyUri(PREF_ALL_PROXY, PREF_ALL_PROXY_USER,
PREF_ALL_PROXY_PASSWD, option);
} else {
return uri;
return makeProxyUri(
PREF_ALL_PROXY, PREF_ALL_PROXY_USER, PREF_ALL_PROXY_PASSWD, option);
}
return uri;
}
} // namespace
// Returns proxy URI for given protocol. If no proxy URI is defined,
// then returns an empty string.
std::string getProxyUri
(const std::string& protocol, const Option* option)
std::string getProxyUri(const std::string& protocol, const Option* option)
{
if (protocol == "http") {
return getProxyOptionFor(PREF_HTTP_PROXY,
PREF_HTTP_PROXY_USER,
PREF_HTTP_PROXY_PASSWD,
option);
} else if(protocol == "https") {
return getProxyOptionFor(
PREF_HTTP_PROXY, PREF_HTTP_PROXY_USER, PREF_HTTP_PROXY_PASSWD, option);
}
if (protocol == "https") {
return getProxyOptionFor(PREF_HTTPS_PROXY,
PREF_HTTPS_PROXY_USER,
PREF_HTTPS_PROXY_PASSWD,
option);
} else if(protocol == "ftp") {
return getProxyOptionFor(PREF_FTP_PROXY,
PREF_FTP_PROXY_USER,
PREF_FTP_PROXY_PASSWD,
option);
} else {
return A2STR::NIL;
}
if (protocol == "ftp") {
return getProxyOptionFor(
PREF_FTP_PROXY, PREF_FTP_PROXY_USER, PREF_FTP_PROXY_PASSWD, option);
}
return A2STR::NIL;
}
namespace {
// Returns true if proxy is defined for the given protocol. Otherwise
// returns false.
bool isProxyRequest
(const std::string& protocol, const std::shared_ptr<Option>& option)
bool isProxyRequest(const std::string& protocol,
const std::shared_ptr<Option>& option)
{
std::string proxyUri = getProxyUri(protocol, option.get());
return !proxyUri.empty();
@ -641,39 +697,36 @@ bool isProxyRequest
} // namespace
namespace {
bool inNoProxy(const std::shared_ptr<Request>& req,
const std::string& noProxy)
bool inNoProxy(const std::shared_ptr<Request>& req, const std::string& noProxy)
{
std::vector<Scip> entries;
util::splitIter(noProxy.begin(), noProxy.end(), std::back_inserter(entries),
',', true);
util::splitIter(
noProxy.begin(), noProxy.end(), std::back_inserter(entries), ',', true);
if (entries.empty()) {
return false;
}
for(std::vector<Scip>::const_iterator i = entries.begin(),
eoi = entries.end(); i != eoi; ++i) {
std::string::const_iterator slashpos =
std::find((*i).first, (*i).second, '/');
if(slashpos == (*i).second) {
if(util::noProxyDomainMatch
(req->getHost(), std::string((*i).first, (*i).second))) {
for (const auto& e : entries) {
const auto slashpos = std::find(e.first, e.second, '/');
if (slashpos == e.second) {
if (util::noProxyDomainMatch(req->getHost(),
std::string(e.first, e.second))) {
return true;
}
} else {
}
// TODO We don't resolve hostname here. More complete
// implementation is that we should first resolve
// hostname(which may result in several IP addresses) and
// evaluates against all of them
std::string ip((*i).first, slashpos);
std::string ip(e.first, slashpos);
uint32_t bits;
if(!util::parseUIntNoThrow(bits, std::string(slashpos+1, (*i).second))) {
if (!util::parseUIntNoThrow(bits, std::string(slashpos + 1, e.second))) {
continue;
}
if (util::inSameCidrBlock(ip, req->getHost(), bits)) {
return true;
}
}
}
return false;
}
} // namespace
@ -690,30 +743,42 @@ std::shared_ptr<Request> AbstractCommand::createProxyRequest() const
if (inNoProxy(req_, getOption()->get(PREF_NO_PROXY))) {
return proxyRequest;
}
std::string proxy = getProxyUri(req_->getProtocol(), getOption().get());
if (!proxy.empty()) {
proxyRequest.reset(new Request());
if (proxyRequest->setUri(proxy)) {
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Using proxy", getCuid()));
} else {
A2_LOG_DEBUG(fmt("CUID#%" PRId64 " - Failed to parse proxy string",
getCuid()));
}
else {
A2_LOG_DEBUG(
fmt("CUID#%" PRId64 " - Failed to parse proxy string", getCuid()));
proxyRequest.reset();
}
}
return proxyRequest;
}
std::string AbstractCommand::resolveHostname
(std::vector<std::string>& addrs, const std::string& hostname, uint16_t port)
std::string AbstractCommand::resolveHostname(std::vector<std::string>& addrs,
const std::string& hostname,
uint16_t port)
{
if (util::isNumericHost(hostname)) {
addrs.push_back(hostname);
return hostname;
}
e_->findAllCachedIPAddresses(std::back_inserter(addrs), hostname, port);
if (!addrs.empty()) {
auto ipaddr = addrs.front();
A2_LOG_INFO(fmt(MSG_DNS_CACHE_HIT,
getCuid(),
hostname.c_str(),
strjoin(addrs.begin(), addrs.end(), ", ").c_str()));
return ipaddr;
}
std::string ipaddr;
if(addrs.empty()) {
#ifdef ENABLE_ASYNC_DNS
if (getOption()->getAsBool(PREF_ASYNC_DNS)) {
if (!asyncNameResolverMan_->started()) {
@ -722,26 +787,31 @@ std::string AbstractCommand::resolveHostname
switch (asyncNameResolverMan_->getStatus()) {
case -1:
if (!isProxyRequest(req_->getProtocol(), getOption())) {
e_->getRequestGroupMan()->getOrCreateServerStat
(req_->getHost(), req_->getProtocol())->setError();
e_->getRequestGroupMan()
->getOrCreateServerStat(req_->getHost(), req_->getProtocol())
->setError();
}
throw DL_ABORT_EX2
(fmt(MSG_NAME_RESOLUTION_FAILED, getCuid(), hostname.c_str(),
throw DL_ABORT_EX2(fmt(MSG_NAME_RESOLUTION_FAILED,
getCuid(),
hostname.c_str(),
asyncNameResolverMan_->getLastError().c_str()),
error_code::NAME_RESOLVE_ERROR);
case 0:
return A2STR::NIL;
case 1:
asyncNameResolverMan_->getResolvedAddress(addrs);
if (addrs.empty()) {
throw DL_ABORT_EX2
(fmt(MSG_NAME_RESOLUTION_FAILED, getCuid(), hostname.c_str(),
throw DL_ABORT_EX2(fmt(MSG_NAME_RESOLUTION_FAILED,
getCuid(),
hostname.c_str(),
"No address returned"),
error_code::NAME_RESOLVE_ERROR);
}
break;
}
} else
}
else
#endif // ENABLE_ASYNC_DNS
{
NameResolver res;
@ -755,73 +825,66 @@ std::string AbstractCommand::resolveHostname
getCuid(),
hostname.c_str(),
strjoin(addrs.begin(), addrs.end(), ", ").c_str()));
for(std::vector<std::string>::const_iterator i = addrs.begin(),
eoi = addrs.end(); i != eoi; ++i) {
e_->cacheIPAddress(hostname, *i, port);
for (const auto& addr : addrs) {
e_->cacheIPAddress(hostname, addr, port);
}
ipaddr = e_->findCachedIPAddress(hostname, port);
} else {
ipaddr = addrs.front();
A2_LOG_INFO(fmt(MSG_DNS_CACHE_HIT,
getCuid(),
hostname.c_str(),
strjoin(addrs.begin(), addrs.end(), ", ").c_str()));
}
return ipaddr;
}
void AbstractCommand::prepareForNextAction
(std::unique_ptr<CheckIntegrityEntry> checkEntry)
void AbstractCommand::prepareForNextAction(
std::unique_ptr<CheckIntegrityEntry> checkEntry)
{
std::vector<std::unique_ptr<Command>> commands;
requestGroup_->processCheckIntegrityEntry(commands, std::move(checkEntry),
e_);
requestGroup_->processCheckIntegrityEntry(
commands, std::move(checkEntry), e_);
e_->addCommand(std::move(commands));
e_->setNoWait(true);
}
bool AbstractCommand::checkIfConnectionEstablished
(const std::shared_ptr<SocketCore>& socket,
bool AbstractCommand::checkIfConnectionEstablished(
const std::shared_ptr<SocketCore>& socket,
const std::string& connectedHostname,
const std::string& connectedAddr,
uint16_t connectedPort)
{
std::string error = socket->getSocketError();
if(!error.empty()) {
if (error.empty()) {
return true;
}
// See also InitiateConnectionCommand::executeInternal()
e_->markBadIPAddress(connectedHostname, connectedAddr, connectedPort);
if(!e_->findCachedIPAddress(connectedHostname, connectedPort).empty()) {
A2_LOG_INFO(fmt(MSG_CONNECT_FAILED_AND_RETRY,
getCuid(),
connectedAddr.c_str(), connectedPort));
e_->setNoWait(true);
e_->addCommand(InitiateConnectionCommandFactory::
createInitiateConnectionCommand
(getCuid(), req_, fileEntry_, requestGroup_, e_));
return false;
}
if (e_->findCachedIPAddress(connectedHostname, connectedPort).empty()) {
e_->removeCachedIPAddress(connectedHostname, connectedPort);
// Don't set error if proxy server is used and its method is GET.
if (resolveProxyMethod(req_->getProtocol()) != V_GET ||
!isProxyRequest(req_->getProtocol(), getOption())) {
e_->getRequestGroupMan()->getOrCreateServerStat
(req_->getHost(), req_->getProtocol())->setError();
e_->getRequestGroupMan()
->getOrCreateServerStat(req_->getHost(), req_->getProtocol())
->setError();
}
throw DL_RETRY_EX
(fmt(MSG_ESTABLISHING_CONNECTION_FAILED, error.c_str()));
}
return true;
throw DL_RETRY_EX(fmt(MSG_ESTABLISHING_CONNECTION_FAILED, error.c_str()));
}
const std::string& AbstractCommand::resolveProxyMethod
(const std::string& protocol) const
{
if(getOption()->get(PREF_PROXY_METHOD) == V_TUNNEL ||
protocol == "https") {
return V_TUNNEL;
} else {
return V_GET;
A2_LOG_INFO(fmt(MSG_CONNECT_FAILED_AND_RETRY,
getCuid(),
connectedAddr.c_str(),
connectedPort));
e_->setNoWait(true);
e_->addCommand(
InitiateConnectionCommandFactory::createInitiateConnectionCommand(
getCuid(), req_, fileEntry_, requestGroup_, e_));
return false;
}
const std::string&
AbstractCommand::resolveProxyMethod(const std::string& protocol) const
{
if (getOption()->get(PREF_PROXY_METHOD) == V_TUNNEL || protocol == "https") {
return V_TUNNEL;
}
return V_GET;
}
const std::shared_ptr<Option>& AbstractCommand::getOption() const
@ -838,9 +901,9 @@ int32_t AbstractCommand::calculateMinSplitSize() const
{
if (req_ && req_->isPipeliningEnabled()) {
return getDownloadContext()->getPieceLength();
} else {
return getOption()->getAsInt(PREF_MIN_SPLIT_SIZE);
}
return getOption()->getAsInt(PREF_MIN_SPLIT_SIZE);
}
void AbstractCommand::setRequest(const std::shared_ptr<Request>& request)
@ -863,7 +926,8 @@ void AbstractCommand::setSocket(const std::shared_ptr<SocketCore>& s)
socket_ = s;
}
const std::shared_ptr<DownloadContext>& AbstractCommand::getDownloadContext() const
const std::shared_ptr<DownloadContext>&
AbstractCommand::getDownloadContext() const
{
return requestGroup_->getDownloadContext();
}
@ -880,11 +944,13 @@ const std::shared_ptr<PieceStorage>& AbstractCommand::getPieceStorage() const
void AbstractCommand::checkSocketRecvBuffer()
{
if(!socketRecvBuffer_->bufferEmpty()) {
if (socketRecvBuffer_->bufferEmpty()) {
return;
}
setStatus(Command::STATUS_ONESHOT_REALTIME);
e_->setNoWait(true);
}
}
void AbstractCommand::addCommandSelf()
{

47
src/AbstractCommand.h
View File

@ -62,7 +62,8 @@ class AsyncNameResolver;
class AsyncNameResolverMan;
#endif // ENABLE_ASYNC_DNS
class AbstractCommand : public Command {
class AbstractCommand : public Command
{
private:
std::shared_ptr<Request> req_;
std::shared_ptr<FileEntry> fileEntry_;
@ -90,8 +91,11 @@ private:
bool incNumConnection_;
int32_t calculateMinSplitSize() const;
void useFasterRequest(const std::shared_ptr<Request>& fasterRequest);
bool shouldProcess() const;
public:
RequestGroup* getRequestGroup() const
{
@ -150,26 +154,32 @@ public:
// return empty string. In this case, call this function with same
// arguments until resolved address is returned. Exception is
// thrown on error. port is used for retrieving cached addresses.
std::string resolveHostname
(std::vector<std::string>& addrs, const std::string& hostname, uint16_t port);
std::string resolveHostname(std::vector<std::string>& addrs,
const std::string& hostname,
uint16_t port);
void tryReserved();
void setReadCheckSocket(const std::shared_ptr<SocketCore>& socket);
void setWriteCheckSocket(const std::shared_ptr<SocketCore>& socket);
void disableReadCheckSocket();
void disableWriteCheckSocket();
/**
* If pred == true, calls setReadCheckSocket(socket). Otherwise, calls
* disableReadCheckSocket().
*/
void setReadCheckSocketIf(const std::shared_ptr<SocketCore>& socket, bool pred);
void setReadCheckSocketIf(const std::shared_ptr<SocketCore>& socket,
bool pred);
/**
* If pred == true, calls setWriteCheckSocket(socket). Otherwise, calls
* disableWriteCheckSocket().
*/
void setWriteCheckSocketIf(const std::shared_ptr<SocketCore>& socket, bool pred);
void setWriteCheckSocketIf(const std::shared_ptr<SocketCore>& socket,
bool pred);
// Swaps socket_ with socket. This disables current read and write
// check.
@ -180,7 +190,10 @@ public:
return timeout_;
}
void setTimeout(time_t timeout) { timeout_ = timeout; }
void setTimeout(time_t timeout)
{
timeout_ = timeout;
}
void prepareForNextAction(std::unique_ptr<CheckIntegrityEntry> checkEntry);
@ -189,8 +202,7 @@ public:
// InitiateConnectionCommandFactory and it is pushed to
// DownloadEngine and returns false. If no addresses left, DlRetryEx
// exception is thrown.
bool checkIfConnectionEstablished
(const std::shared_ptr<SocketCore>& socket,
bool checkIfConnectionEstablished(const std::shared_ptr<SocketCore>& socket,
const std::string& connectedHostname,
const std::string& connectedAddr,
uint16_t connectedPort);
@ -225,33 +237,40 @@ public:
void checkSocketRecvBuffer();
void addCommandSelf();
protected:
virtual bool prepareForRetry(time_t wait);
virtual void onAbort();
virtual bool executeInternal() = 0;
// Returns true if the derived class wants to execute
// executeInternal() unconditionally
virtual bool noCheck()
virtual bool noCheck() const
{
return false;
}
public:
AbstractCommand(cuid_t cuid, const std::shared_ptr<Request>& req,
AbstractCommand(cuid_t cuid,
const std::shared_ptr<Request>& req,
const std::shared_ptr<FileEntry>& fileEntry,
RequestGroup* requestGroup, DownloadEngine* e,
RequestGroup* requestGroup,
DownloadEngine* e,
const std::shared_ptr<SocketCore>& s = nullptr,
const std::shared_ptr<SocketRecvBuffer>& socketRecvBuffer = nullptr,
const std::shared_ptr<SocketRecvBuffer>& socketRecvBuffer =
nullptr,
bool incNumConnection = true);
virtual ~AbstractCommand();
virtual bool execute() CXX11_OVERRIDE;
};
// Returns proxy URI for given protocol. If no proxy URI is defined,
// then returns an empty string.
std::string getProxyUri
(const std::string& protocol, const Option* option);
std::string getProxyUri(const std::string& protocol, const Option* option);
} // namespace aria2

2
src/ConnectCommand.cc
View File

@ -115,7 +115,7 @@ bool ConnectCommand::executeInternal()
return true;
}
bool ConnectCommand::noCheck()
bool ConnectCommand::noCheck() const
{
return backupConnectionInfo_ && !backupConnectionInfo_->ipaddr.empty();
}

2
src/ConnectCommand.h
View File

@ -58,7 +58,7 @@ public:
const std::shared_ptr<Request>& getProxyRequest() const;
protected:
virtual bool executeInternal() CXX11_OVERRIDE;
virtual bool noCheck() CXX11_OVERRIDE;
virtual bool noCheck() const CXX11_OVERRIDE;
private:
std::shared_ptr<Request> proxyRequest_;
std::shared_ptr<BackupConnectInfo> backupConnectionInfo_;

5
src/RequestGroup.h
View File

@ -241,6 +241,11 @@ public:
int64_t getCompletedLength() const;
inline int64_t getPendingLength() const
{
return getTotalLength() - getCompletedLength();
}
/**
* Compares expected filename with specified actualFilename.
* The expected filename refers to FileEntry::getBasename() of the first