using namespace std;
// Worker::Worker - Constructor for Queue startup /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-pkgAcquire::Worker::Worker(Queue *Q,MethodConfig *Cnf,
- pkgAcquireStatus *log) : d(NULL), Log(log)
+pkgAcquire::Worker::Worker(Queue *Q, MethodConfig *Cnf, pkgAcquireStatus *log) :
+ d(NULL), OwnerQ(Q), Log(log), Config(Cnf), Access(Cnf->Access),
+ CurrentItem(nullptr), CurrentSize(0), TotalSize(0)
{
- OwnerQ = Q;
- Config = Cnf;
- Access = Cnf->Access;
- CurrentItem = 0;
- TotalSize = 0;
- CurrentSize = 0;
-
Construct();
}
/*}}}*/
// Worker::Worker - Constructor for method config startup /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-pkgAcquire::Worker::Worker(MethodConfig *Cnf) : d(NULL), OwnerQ(NULL), Config(Cnf),
- Access(Cnf->Access), CurrentItem(NULL),
- CurrentSize(0), TotalSize(0)
+pkgAcquire::Worker::Worker(MethodConfig *Cnf) : Worker(nullptr, Cnf, nullptr)
{
- Construct();
}
/*}}}*/
// Worker::Construct - Constructor helper /*{{{*/
bool pkgAcquire::Worker::Start()
{
// Get the method path
- string Method = _config->FindDir("Dir::Bin::Methods") + Access;
+ constexpr char const * const methodsDir = "Dir::Bin::Methods";
+ std::string const confItem = std::string(methodsDir) + "::" + Access;
+ std::string Method;
+ if (_config->Exists(confItem))
+ Method = _config->FindFile(confItem.c_str());
+ else
+ Method = _config->FindDir(methodsDir) + Access;
if (FileExists(Method) == false)
{
+ if (flNotDir(Method) == "false")
+ {
+ _error->Error(_("The method '%s' is explicitly disabled via configuration."), Access.c_str());
+ if (Access == "http" || Access == "https")
+ _error->Notice(_("If you meant to use Tor remember to use %s instead of %s."), ("tor+" + Access).c_str(), Access.c_str());
+ return false;
+ }
_error->Error(_("The method driver %s could not be found."),Method.c_str());
- if (Access == "https")
- _error->Notice(_("Is the package %s installed?"), "apt-transport-https");
+ std::string const A(Access.cbegin(), std::find(Access.cbegin(), Access.cend(), '+'));
+ std::string pkg;
+ strprintf(pkg, "apt-transport-%s", A.c_str());
+ _error->Notice(_("Is the package %s installed?"), pkg.c_str());
return false;
}
+ std::string const Calling = _config->FindDir(methodsDir) + Access;
if (Debug == true)
- clog << "Starting method '" << Method << '\'' << endl;
+ {
+ std::clog << "Starting method '" << Calling << "'";
+ if (Calling != Method)
+ std::clog << " ( via " << Method << " )";
+ std::clog << endl;
+ }
// Create the pipes
int Pipes[4] = {-1,-1,-1,-1};
SetCloseExec(STDIN_FILENO,false);
SetCloseExec(STDERR_FILENO,false);
- const char *Args[2];
- Args[0] = Method.c_str();
- Args[1] = 0;
- execv(Args[0],(char **)Args);
- cerr << "Failed to exec method " << Args[0] << endl;
+ const char * const Args[] = { Calling.c_str(), nullptr };
+ execv(Method.c_str() ,const_cast<char **>(Args));
+ std::cerr << "Failed to exec method " << Calling << " ( via " << Method << ")" << endl;
_exit(100);
}
// ---------------------------------------------------------------------
/* This takes the messages from the message queue and runs them through
the parsers in order. */
+enum class APT_HIDDEN MessageType {
+ CAPABILITIES = 100,
+ LOG = 101,
+ STATUS = 102,
+ REDIRECT = 103,
+ WARNING = 104,
+ URI_START = 200,
+ URI_DONE = 201,
+ URI_FAILURE = 400,
+ GENERAL_FAILURE = 401,
+ MEDIA_CHANGE = 403
+};
+static bool isDoomedItem(pkgAcquire::Item const * const Itm)
+{
+ auto const TransItm = dynamic_cast<pkgAcqTransactionItem const * const>(Itm);
+ if (TransItm == nullptr)
+ return false;
+ return TransItm->TransactionManager->State != pkgAcqTransactionItem::TransactionStarted;
+}
bool pkgAcquire::Worker::RunMessages()
{
while (MessageQueue.empty() == false)
// Fetch the message number
char *End;
- int Number = strtol(Message.c_str(),&End,10);
+ MessageType const Number = static_cast<MessageType>(strtoul(Message.c_str(),&End,10));
if (End == Message.c_str())
return _error->Error("Invalid message from method %s: %s",Access.c_str(),Message.c_str());
// Determine the message number and dispatch
switch (Number)
{
- // 100 Capabilities
- case 100:
+ case MessageType::CAPABILITIES:
if (Capabilities(Message) == false)
return _error->Error("Unable to process Capabilities message from %s",Access.c_str());
break;
- // 101 Log
- case 101:
+ case MessageType::LOG:
if (Debug == true)
clog << " <- (log) " << LookupTag(Message,"Message") << endl;
break;
- // 102 Status
- case 102:
+ case MessageType::STATUS:
Status = LookupTag(Message,"Message");
break;
- // 103 Redirect
- case 103:
+ case MessageType::REDIRECT:
{
- if (Itm == 0)
+ if (Itm == nullptr)
{
_error->Error("Method gave invalid 103 Redirect message");
break;
// and then put it in the main queue again
std::vector<Item*> const ItmOwners = Itm->Owners;
OwnerQ->ItemDone(Itm);
- Itm = NULL;
- for (pkgAcquire::Queue::QItem::owner_iterator O = ItmOwners.begin(); O != ItmOwners.end(); ++O)
+ Itm = nullptr;
+ for (auto const &Owner: ItmOwners)
{
- pkgAcquire::Item *Owner = *O;
pkgAcquire::ItemDesc &desc = Owner->GetItemDesc();
+ if (Owner->IsRedirectionLoop(NewURI))
+ {
+ std::string msg = Message;
+ msg.append("\nFailReason: RedirectionLoop");
+ Owner->Failed(msg, Config);
+ if (Log != nullptr)
+ Log->Fail(Owner->GetItemDesc());
+ continue;
+ }
+
+ if (Log != nullptr)
+ Log->Done(desc);
+
// if we change site, treat it as a mirror change
if (URI::SiteOnly(NewURI) != URI::SiteOnly(desc.URI))
{
- std::string const OldSite = desc.Description.substr(0, desc.Description.find(" "));
- if (likely(APT::String::Startswith(desc.URI, OldSite)))
+ auto const firstSpace = desc.Description.find(" ");
+ if (firstSpace != std::string::npos)
{
- std::string const OldExtra = desc.URI.substr(OldSite.length() + 1);
- if (likely(APT::String::Endswith(NewURI, OldExtra)))
+ std::string const OldSite = desc.Description.substr(0, firstSpace);
+ if (likely(APT::String::Startswith(desc.URI, OldSite)))
{
- std::string const NewSite = NewURI.substr(0, NewURI.length() - OldExtra.length());
- Owner->UsedMirror = URI::ArchiveOnly(NewSite);
- if (desc.Description.find(" ") != string::npos)
- desc.Description.replace(0, desc.Description.find(" "), Owner->UsedMirror);
+ std::string const OldExtra = desc.URI.substr(OldSite.length() + 1);
+ if (likely(APT::String::Endswith(NewURI, OldExtra)))
+ {
+ std::string const NewSite = NewURI.substr(0, NewURI.length() - OldExtra.length());
+ Owner->UsedMirror = URI::ArchiveOnly(NewSite);
+ desc.Description.replace(0, firstSpace, Owner->UsedMirror);
+ }
}
}
}
desc.URI = NewURI;
- OwnerQ->Owner->Enqueue(desc);
-
- if (Log != 0)
- Log->Done(desc);
+ if (isDoomedItem(Owner) == false)
+ OwnerQ->Owner->Enqueue(desc);
}
break;
}
- // 200 URI Start
- case 200:
+ case MessageType::WARNING:
+ _error->Warning("%s: %s", Itm->Owner->DescURI().c_str(), LookupTag(Message,"Message").c_str());
+ break;
+
+ case MessageType::URI_START:
{
- if (Itm == 0)
+ if (Itm == nullptr)
{
_error->Error("Method gave invalid 200 URI Start message");
break;
CurrentSize = 0;
TotalSize = strtoull(LookupTag(Message,"Size","0").c_str(), NULL, 10);
ResumePoint = strtoull(LookupTag(Message,"Resume-Point","0").c_str(), NULL, 10);
- for (pkgAcquire::Queue::QItem::owner_iterator O = Itm->Owners.begin(); O != Itm->Owners.end(); ++O)
+ for (auto const Owner: Itm->Owners)
{
- (*O)->Start(Message, TotalSize);
-
+ Owner->Start(Message, TotalSize);
// Display update before completion
- if (Log != 0)
+ if (Log != nullptr)
{
if (Log->MorePulses == true)
- Log->Pulse((*O)->GetOwner());
- Log->Fetch((*O)->GetItemDesc());
+ Log->Pulse(Owner->GetOwner());
+ Log->Fetch(Owner->GetItemDesc());
}
}
break;
}
- // 201 URI Done
- case 201:
+ case MessageType::URI_DONE:
{
- if (Itm == 0)
+ if (Itm == nullptr)
{
_error->Error("Method gave invalid 201 URI Done message");
break;
bool const isIMSHit = StringToBool(LookupTag(Message,"IMS-Hit"),false) ||
StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false);
- for (pkgAcquire::Queue::QItem::owner_iterator O = ItmOwners.begin(); O != ItmOwners.end(); ++O)
+ auto const forcedHash = _config->Find("Acquire::ForceHash");
+ for (auto const Owner: ItmOwners)
{
- pkgAcquire::Item * const Owner = *O;
HashStringList const ExpectedHashes = Owner->GetExpectedHashes();
if(_config->FindB("Debug::pkgAcquire::Auth", false) == true)
{
// decide if what we got is what we expected
bool consideredOkay = false;
- if (ExpectedHashes.usable())
+ if ((forcedHash.empty() && ExpectedHashes.empty() == false) ||
+ (forcedHash.empty() == false && ExpectedHashes.usable()))
{
- if (ReceivedHashes.usable() == false)
+ if (ReceivedHashes.empty())
{
/* IMS-Hits can't be checked here as we will have uncompressed file,
but the hashes for the compressed file. What we have was good through
consideredOkay = false;
}
- else if (Owner->HashesRequired() == true)
- consideredOkay = false;
else
- {
- consideredOkay = true;
- // even if the hashes aren't usable to declare something secure
- // we can at least use them to declare it an integrity failure
- if (ExpectedHashes.empty() == false && ReceivedHashes != ExpectedHashes && _config->Find("Acquire::ForceHash").empty())
- consideredOkay = false;
- }
+ consideredOkay = !Owner->HashesRequired();
if (consideredOkay == true)
consideredOkay = Owner->VerifyDone(Message, Config);
else // hashsum mismatch
Owner->Status = pkgAcquire::Item::StatAuthError;
+
if (consideredOkay == true)
{
- Owner->Done(Message, ReceivedHashes, Config);
- if (Log != 0)
+ if (isDoomedItem(Owner) == false)
+ Owner->Done(Message, ReceivedHashes, Config);
+ if (Log != nullptr)
{
if (isIMSHit)
Log->IMSHit(Owner->GetItemDesc());
}
else
{
- Owner->Failed(Message,Config);
- if (Log != 0)
+ if (isDoomedItem(Owner) == false)
+ {
+ if (Message.find("\nFailReason:") == std::string::npos)
+ {
+ if (ReceivedHashes != ExpectedHashes)
+ Message.append("\nFailReason: HashSumMismatch");
+ else
+ Message.append("\nFailReason: WeakHashSums");
+ }
+ Owner->Failed(Message,Config);
+ }
+ if (Log != nullptr)
Log->Fail(Owner->GetItemDesc());
}
}
break;
}
- // 400 URI Failure
- case 400:
+ case MessageType::URI_FAILURE:
{
- if (Itm == 0)
+ if (Itm == nullptr)
{
std::string const msg = LookupTag(Message,"Message");
_error->Error("Method gave invalid 400 URI Failure message: %s", msg.c_str());
PrepareFiles("400::URIFailure", Itm);
// Display update before completion
- if (Log != 0 && Log->MorePulses == true)
+ if (Log != nullptr && Log->MorePulses == true)
for (pkgAcquire::Queue::QItem::owner_iterator O = Itm->Owners.begin(); O != Itm->Owners.end(); ++O)
Log->Pulse((*O)->GetOwner());
std::vector<Item*> const ItmOwners = Itm->Owners;
OwnerQ->ItemDone(Itm);
- Itm = NULL;
+ Itm = nullptr;
- bool errTransient;
+ bool errTransient = false, errAuthErr = false;
{
std::string const failReason = LookupTag(Message, "FailReason");
- std::string const reasons[] = { "Timeout", "ConnectionRefused",
- "ConnectionTimedOut", "ResolveFailure", "TmpResolveFailure" };
- errTransient = std::find(std::begin(reasons), std::end(reasons), failReason) != std::end(reasons);
+ {
+ auto const reasons = { "Timeout", "ConnectionRefused",
+ "ConnectionTimedOut", "ResolveFailure", "TmpResolveFailure" };
+ errTransient = std::find(std::begin(reasons), std::end(reasons), failReason) != std::end(reasons);
+ }
+ if (errTransient == false)
+ {
+ auto const reasons = { "HashSumMismatch", "WeakHashSums", "MaximumSizeExceeded" };
+ errAuthErr = std::find(std::begin(reasons), std::end(reasons), failReason) != std::end(reasons);
+ }
}
- for (pkgAcquire::Queue::QItem::owner_iterator O = ItmOwners.begin(); O != ItmOwners.end(); ++O)
+ for (auto const Owner: ItmOwners)
{
- if (errTransient)
- (*O)->Status = pkgAcquire::Item::StatTransientNetworkError;
- (*O)->Failed(Message,Config);
+ if (errAuthErr && Owner->GetExpectedHashes().empty() == false)
+ Owner->Status = pkgAcquire::Item::StatAuthError;
+ else if (errTransient)
+ Owner->Status = pkgAcquire::Item::StatTransientNetworkError;
- if (Log != 0)
- Log->Fail((*O)->GetItemDesc());
+ if (isDoomedItem(Owner) == false)
+ Owner->Failed(Message,Config);
+ if (Log != nullptr)
+ Log->Fail(Owner->GetItemDesc());
}
ItemDone();
break;
}
- // 401 General Failure
- case 401:
+ case MessageType::GENERAL_FAILURE:
_error->Error("Method %s General failure: %s",Access.c_str(),LookupTag(Message,"Message").c_str());
break;
- // 403 Media Change
- case 403:
+ case MessageType::MEDIA_CHANGE:
MediaChange(Message);
break;
}
if (OutFd == -1)
return false;
+ HashStringList const hsl = Item->GetExpectedHashes();
+
+ if (isDoomedItem(Item->Owner))
+ return true;
+
+ if (hsl.usable() == false && Item->Owner->HashesRequired() &&
+ _config->Exists("Acquire::ForceHash") == false)
+ {
+ std::string const Message = "400 URI Failure"
+ "\nURI: " + Item->URI +
+ "\nFilename: " + Item->Owner->DestFile +
+ "\nFailReason: WeakHashSums";
+
+ auto const ItmOwners = Item->Owners;
+ for (auto &O: ItmOwners)
+ {
+ O->Status = pkgAcquire::Item::StatAuthError;
+ O->Failed(Message, Config);
+ if (Log != nullptr)
+ Log->Fail(O->GetItemDesc());
+ }
+ // "queued" successfully, the item just instantly failed
+ return true;
+ }
+
string Message = "600 URI Acquire\n";
Message.reserve(300);
Message += "URI: " + Item->URI;
Message += "\nFilename: " + Item->Owner->DestFile;
- HashStringList const hsl = Item->GetExpectedHashes();
for (HashStringList::const_iterator hs = hsl.begin(); hs != hsl.end(); ++hs)
Message += "\nExpected-" + hs->HashType() + ": " + hs->HashValue();
if (RealFileExists(Item->Owner->DestFile))
{
- std::string SandboxUser = _config->Find("APT::Sandbox::User");
+ std::string const SandboxUser = _config->Find("APT::Sandbox::User");
ChangeOwnerAndPermissionOfFile("Item::QueueURI", Item->Owner->DestFile.c_str(),
SandboxUser.c_str(), "root", 0600);
}
for (pkgAcquire::Queue::QItem::owner_iterator O = Itm->Owners.begin(); O != Itm->Owners.end(); ++O)
{
pkgAcquire::Item const * const Owner = *O;
- if (Owner->DestFile == filename)
+ if (Owner->DestFile == filename || filename == "/dev/null")
continue;
- unlink(Owner->DestFile.c_str());
+ RemoveFile("PrepareFiles", Owner->DestFile);
if (link(filename.c_str(), Owner->DestFile.c_str()) != 0)
{
// different mounts can't happen for us as we download to lists/ by default,
else
{
for (pkgAcquire::Queue::QItem::owner_iterator O = Itm->Owners.begin(); O != Itm->Owners.end(); ++O)
- unlink((*O)->DestFile.c_str());
+ RemoveFile("PrepareFiles", (*O)->DestFile);
}
}
/*}}}*/
projects / apt.git / blobdiff