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-rw-r--r--apt-pkg/acquire-item.cc106
1 files changed, 84 insertions, 22 deletions
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index 0178456a8..913764f64 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -55,7 +55,8 @@ using namespace std;
/* */
pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0),
PartialSize(0), Mode(0), ID(0), Complete(false),
- Local(false), QueueCounter(0)
+ Local(false), QueueCounter(0),
+ ExpectedAdditionalItems(0)
{
Owner->Add(this);
Status = StatIdle;
@@ -342,21 +343,24 @@ bool pkgAcqSubIndex::ParseIndex(string const &IndexFile) /*{{{*/
* the original packages file
*/
pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire *Owner,
- string URI,string URIDesc,string ShortDesc,
- HashString ExpectedHash)
- : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash),
- Description(URIDesc)
+ IndexTarget const *Target,
+ HashString ExpectedHash,
+ indexRecords *MetaIndexParser)
+ : Item(Owner), ExpectedHash(ExpectedHash), Target(Target),
+ MetaIndexParser(MetaIndexParser)
+
{
Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
- Desc.Description = URIDesc + "/DiffIndex";
+ RealURI = Target->URI;
Desc.Owner = this;
- Desc.ShortDesc = ShortDesc;
- Desc.URI = URI + ".diff/Index";
+ Desc.Description = Target->Description + "/DiffIndex";
+ Desc.ShortDesc = Target->ShortDesc;
+ Desc.URI = Target->URI + ".diff/Index";
DestFile = _config->FindDir("Dir::State::lists") + "partial/";
- DestFile += URItoFileName(URI) + string(".DiffIndex");
+ DestFile += URItoFileName(Target->URI) + string(".DiffIndex");
if(Debug)
std::clog << "pkgAcqDiffIndex: " << Desc.URI << std::endl;
@@ -559,8 +563,7 @@ void pkgAcqDiffIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/
std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << " with " << Message << std::endl
<< "Falling back to normal index file acquire" << std::endl;
- new pkgAcqIndex(Owner, RealURI, Description, Desc.ShortDesc,
- ExpectedHash);
+ new pkgAcqIndex(Owner, Target, ExpectedHash, MetaIndexParser);
Complete = false;
Status = StatDone;
@@ -919,7 +922,8 @@ void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,string M
pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,
string URI,string URIDesc,string ShortDesc,
HashString ExpectedHash, string comprExt)
- : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash)
+ : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), Target(0),
+ MetaIndexParser(0)
{
if(comprExt.empty() == true)
{
@@ -937,7 +941,7 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,
Init(URI, URIDesc, ShortDesc);
}
pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, IndexTarget const *Target,
- HashString const &ExpectedHash, indexRecords const *MetaIndexParser)
+ HashString const &ExpectedHash, indexRecords *MetaIndexParser)
: Item(Owner), RealURI(Target->URI), ExpectedHash(ExpectedHash)
{
// autoselect the compression method
@@ -964,6 +968,10 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, IndexTarget const *Target,
else
Verify = true;
+ // we need this in Init()
+ this->Target = Target;
+ this->MetaIndexParser = MetaIndexParser;
+
Init(Target->URI, Target->Description, Target->ShortDesc);
}
/*}}}*/
@@ -976,10 +984,27 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc, string const &S
DestFile += URItoFileName(URI);
std::string const comprExt = CompressionExtension.substr(0, CompressionExtension.find(' '));
+ std::string MetaKey;
if (comprExt == "uncompressed")
+ {
Desc.URI = URI;
+ if(Target)
+ MetaKey = string(Target->MetaKey);
+ }
else
+ {
Desc.URI = URI + '.' + comprExt;
+ if(Target)
+ MetaKey = string(Target->MetaKey) + '.' + comprExt;
+ }
+
+ // load the filesize
+ if(MetaIndexParser)
+ {
+ indexRecords::checkSum *Record = MetaIndexParser->Lookup(MetaKey);
+ if(Record)
+ FileSize = Record->Size;
+ }
Desc.Description = URIDesc;
Desc.Owner = this;
@@ -1081,7 +1106,7 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
FinalFile += URItoFileName(RealURI);
Rename(DestFile,FinalFile);
chmod(FinalFile.c_str(),0644);
-
+
/* We restore the original name to DestFile so that the clean operation
will work OK */
DestFile = _config->FindDir("Dir::State::lists") + "partial/";
@@ -1090,6 +1115,7 @@ void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash,
// Remove the compressed version.
if (Erase == true)
unlink(DestFile.c_str());
+
return;
}
@@ -1177,9 +1203,13 @@ pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner,
{
}
pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, IndexTarget const *Target,
- HashString const &ExpectedHash, indexRecords const *MetaIndexParser)
+ HashString const &ExpectedHash, indexRecords *MetaIndexParser)
: pkgAcqIndex(Owner, Target, ExpectedHash, MetaIndexParser)
{
+ // load the filesize
+ indexRecords::checkSum *Record = MetaIndexParser->Lookup(string(Target->MetaKey));
+ if(Record)
+ FileSize = Record->Size;
}
/*}}}*/
// AcqIndexTrans::Custom600Headers - Insert custom request headers /*{{{*/
@@ -1259,6 +1289,9 @@ pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner, /*{{{*/
Rename(Final,LastGoodSig);
}
+ // we expect the indextargets + one additional Release file
+ ExpectedAdditionalItems = IndexTargets->size() + 1;
+
QueueURI(Desc);
}
/*}}}*/
@@ -1311,6 +1344,9 @@ void pkgAcqMetaSig::Done(string Message,unsigned long long Size,string MD5,
Complete = true;
+ // at this point pkgAcqMetaIndex takes over
+ ExpectedAdditionalItems = 0;
+
// put the last known good file back on i-m-s hit (it will
// be re-verified again)
// Else do nothing, we have the new file in DestFile then
@@ -1328,6 +1364,9 @@ void pkgAcqMetaSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/
{
string Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
+ // at this point pkgAcqMetaIndex takes over
+ ExpectedAdditionalItems = 0;
+
// if we get a network error we fail gracefully
if(Status == StatTransientNetworkError)
{
@@ -1378,6 +1417,9 @@ pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire *Owner, /*{{{*/
Desc.ShortDesc = ShortDesc;
Desc.URI = URI;
+ // we expect more item
+ ExpectedAdditionalItems = IndexTargets->size();
+
QueueURI(Desc);
}
/*}}}*/
@@ -1428,9 +1470,20 @@ void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,string Hash, /
}
else
{
+ // FIXME: move this into pkgAcqMetaClearSig::Done on the next
+ // ABI break
+
+ // if we expect a ClearTextSignature (InRelase), ensure that
+ // this is what we get and if not fail to queue a
+ // Release/Release.gpg, see #346386
+ if (SigFile == DestFile && !StartsWithGPGClearTextSignature(DestFile))
+ {
+ Failed(Message, Cfg);
+ return;
+ }
+
// There was a signature file, so pass it to gpgv for
// verification
-
if (_config->FindB("Debug::pkgAcquire::Auth", false))
std::cerr << "Metaindex acquired, queueing gpg verification ("
<< SigFile << "," << DestFile << ")\n";
@@ -1556,12 +1609,15 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) /*{{{*/
}
}
+ // at this point the real Items are loaded in the fetcher
+ ExpectedAdditionalItems = 0;
+
for (vector <struct IndexTarget*>::const_iterator Target = IndexTargets->begin();
Target != IndexTargets->end();
++Target)
{
HashString ExpectedIndexHash;
- const indexRecords::checkSum *Record = MetaIndexParser->Lookup((*Target)->MetaKey);
+ indexRecords::checkSum *Record = MetaIndexParser->Lookup((*Target)->MetaKey);
bool compressedAvailable = false;
if (Record == NULL)
{
@@ -1608,8 +1664,7 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) /*{{{*/
{
if (_config->FindB("Acquire::PDiffs",true) == true && transInRelease == true &&
MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true)
- new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description,
- (*Target)->ShortDesc, ExpectedIndexHash);
+ new pkgAcqDiffIndex(Owner, *Target, ExpectedIndexHash, MetaIndexParser);
else
new pkgAcqIndexTrans(Owner, *Target, ExpectedIndexHash, MetaIndexParser);
}
@@ -1622,8 +1677,7 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) /*{{{*/
instead, but passing the required info to it is to much hassle */
if(_config->FindB("Acquire::PDiffs",true) == true && (verify == false ||
MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true))
- new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description,
- (*Target)->ShortDesc, ExpectedIndexHash);
+ new pkgAcqDiffIndex(Owner, *Target, ExpectedIndexHash, MetaIndexParser);
else
new pkgAcqIndex(Owner, *Target, ExpectedIndexHash, MetaIndexParser);
}
@@ -1786,6 +1840,10 @@ pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire *Owner, /*{{{*/
{
SigFile = DestFile;
+ // index targets + (worst case:) Release/Release.gpg
+ ExpectedAdditionalItems = IndexTargets->size() + 2;
+
+
// keep the old InRelease around in case of transistent network errors
string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
if (RealFileExists(Final) == true)
@@ -1828,6 +1886,9 @@ string pkgAcqMetaClearSig::Custom600Headers()
/*}}}*/
void pkgAcqMetaClearSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/
{
+ // we failed, we will not get additional items from this method
+ ExpectedAdditionalItems = 0;
+
if (AuthPass == false)
{
// Remove the 'old' InRelease file if we try Release.gpg now as otherwise
@@ -2086,7 +2147,8 @@ void pkgAcqArchive::Done(string Message,unsigned long long Size,string CalcHash,
}
// Check the hash
- if(ExpectedHash.toStr() != CalcHash)
+ // FIXME: could this empty() check impose *any* sort of security issue?
+ if(ExpectedHash.empty() == false && ExpectedHash.toStr() != CalcHash)
{
RenameOnError(HashSumMismatch);
return;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 05:50:18 +0000