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-rw-r--r--apt-pkg/acquire-item.cc69
1 files changed, 50 insertions, 19 deletions
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index ad8cb7f24..f13d2f6ae 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -685,10 +685,15 @@ class APT_HIDDEN CleanupItem : public pkgAcqTransactionItem /*{{{*/
/*}}}*/
// Acquire::Item::Item - Constructor /*{{{*/
+class pkgAcquire::Item::Private
+{
+public:
+ std::vector<std::string> PastRedirections;
+};
APT_IGNORE_DEPRECATED_PUSH
pkgAcquire::Item::Item(pkgAcquire * const owner) :
FileSize(0), PartialSize(0), Mode(0), ID(0), Complete(false), Local(false),
- QueueCounter(0), ExpectedAdditionalItems(0), Owner(owner), d(NULL)
+ QueueCounter(0), ExpectedAdditionalItems(0), Owner(owner), d(new Private())
{
Owner->Add(this);
Status = StatIdle;
@@ -699,6 +704,7 @@ APT_IGNORE_DEPRECATED_POP
pkgAcquire::Item::~Item()
{
Owner->Remove(this);
+ delete d;
}
/*}}}*/
std::string pkgAcquire::Item::Custom600Headers() const /*{{{*/
@@ -766,32 +772,40 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con
}
string const FailReason = LookupTag(Message, "FailReason");
- enum { MAXIMUM_SIZE_EXCEEDED, HASHSUM_MISMATCH, WEAK_HASHSUMS, OTHER } failreason = OTHER;
+ enum { MAXIMUM_SIZE_EXCEEDED, HASHSUM_MISMATCH, WEAK_HASHSUMS, REDIRECTION_LOOP, OTHER } failreason = OTHER;
if ( FailReason == "MaximumSizeExceeded")
failreason = MAXIMUM_SIZE_EXCEEDED;
else if ( FailReason == "WeakHashSums")
failreason = WEAK_HASHSUMS;
+ else if (FailReason == "RedirectionLoop")
+ failreason = REDIRECTION_LOOP;
else if (Status == StatAuthError)
failreason = HASHSUM_MISMATCH;
if(ErrorText.empty())
{
+ std::ostringstream out;
+ switch (failreason)
+ {
+ case HASHSUM_MISMATCH:
+ out << _("Hash Sum mismatch") << std::endl;
+ break;
+ case WEAK_HASHSUMS:
+ out << _("Insufficient information available to perform this download securely") << std::endl;
+ break;
+ case REDIRECTION_LOOP:
+ out << "Redirection loop encountered" << std::endl;
+ break;
+ case MAXIMUM_SIZE_EXCEEDED:
+ out << LookupTag(Message, "Message") << std::endl;
+ break;
+ case OTHER:
+ out << LookupTag(Message, "Message");
+ break;
+ }
+
if (Status == StatAuthError)
{
- std::ostringstream out;
- switch (failreason)
- {
- case HASHSUM_MISMATCH:
- out << _("Hash Sum mismatch") << std::endl;
- break;
- case WEAK_HASHSUMS:
- out << _("Insufficient information available to perform this download securely") << std::endl;
- break;
- case MAXIMUM_SIZE_EXCEEDED:
- case OTHER:
- out << LookupTag(Message, "Message") << std::endl;
- break;
- }
auto const ExpectedHashes = GetExpectedHashes();
if (ExpectedHashes.empty() == false)
{
@@ -822,10 +836,8 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con
}
out << "Last modification reported: " << LookupTag(Message, "Last-Modified", "<none>") << std::endl;
}
- ErrorText = out.str();
}
- else
- ErrorText = LookupTag(Message,"Message");
+ ErrorText = out.str();
}
switch (failreason)
@@ -833,6 +845,7 @@ void pkgAcquire::Item::Failed(string const &Message,pkgAcquire::MethodConfig con
case MAXIMUM_SIZE_EXCEEDED: RenameOnError(MaximumSizeExceeded); break;
case HASHSUM_MISMATCH: RenameOnError(HashSumMismatch); break;
case WEAK_HASHSUMS: break;
+ case REDIRECTION_LOOP: break;
case OTHER: break;
}
@@ -976,6 +989,24 @@ std::string pkgAcquire::Item::HashSum() const /*{{{*/
return hs != NULL ? hs->toStr() : "";
}
/*}}}*/
+bool pkgAcquire::Item::IsRedirectionLoop(std::string const &NewURI) /*{{{*/
+{
+ if (d->PastRedirections.empty())
+ {
+ d->PastRedirections.push_back(NewURI);
+ return false;
+ }
+ auto const LastURI = std::prev(d->PastRedirections.end());
+ // redirections to the same file are a way of restarting/resheduling,
+ // individual methods will have to make sure that they aren't looping this way
+ if (*LastURI == NewURI)
+ return false;
+ if (std::find(d->PastRedirections.begin(), LastURI, NewURI) != LastURI)
+ return true;
+ d->PastRedirections.push_back(NewURI);
+ return false;
+}
+ /*}}}*/
pkgAcqTransactionItem::pkgAcqTransactionItem(pkgAcquire * const Owner, /*{{{*/
pkgAcqMetaClearSig * const transactionManager, IndexTarget const &target) :