X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/2651f1c071927b7fc440ec7a638ecad7ccf04a2e..cc0a4c82b3c132abba9b9ec35fd61bc8b45a1b80:/apt-pkg/acquire-worker.cc?ds=sidebyside diff --git a/apt-pkg/acquire-worker.cc b/apt-pkg/acquire-worker.cc index 37804c67a..9ed7b5b28 100644 --- a/apt-pkg/acquire-worker.cc +++ b/apt-pkg/acquire-worker.cc @@ -172,6 +172,25 @@ bool pkgAcquire::Worker::ReadMessages() // --------------------------------------------------------------------- /* 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(Itm); + if (TransItm == nullptr) + return false; + return TransItm->TransactionManager->State != pkgAcqTransactionItem::TransactionStarted; +} bool pkgAcquire::Worker::RunMessages() { while (MessageQueue.empty() == false) @@ -184,7 +203,7 @@ bool pkgAcquire::Worker::RunMessages() // Fetch the message number char *End; - int Number = strtol(Message.c_str(),&End,10); + MessageType const Number = static_cast(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()); @@ -210,27 +229,23 @@ bool pkgAcquire::Worker::RunMessages() // 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; @@ -248,40 +263,46 @@ bool pkgAcquire::Worker::RunMessages() // and then put it in the main queue again std::vector 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 (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; @@ -291,26 +312,24 @@ bool pkgAcquire::Worker::RunMessages() 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; @@ -359,9 +378,9 @@ bool pkgAcquire::Worker::RunMessages() 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) { @@ -377,9 +396,10 @@ bool pkgAcquire::Worker::RunMessages() // 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 @@ -392,26 +412,20 @@ bool pkgAcquire::Worker::RunMessages() 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()); @@ -421,8 +435,18 @@ bool pkgAcquire::Worker::RunMessages() } 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()); } } @@ -430,10 +454,9 @@ bool pkgAcquire::Worker::RunMessages() 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()); @@ -443,43 +466,51 @@ bool pkgAcquire::Worker::RunMessages() 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 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; } @@ -600,12 +631,36 @@ bool pkgAcquire::Worker::QueueItem(pkgAcquire::Queue::QItem *Item) 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();