X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/47026cdea6ba7d145922ce21d5ec478598126b8d..70b3d263556241a0cb8217006f4dbef1138de25d:/apt-pkg/acquire-item.cc diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index 1b9120586..679f9cee7 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -95,7 +95,7 @@ void pkgAcquire::Item::Start(string /*Message*/,unsigned long Size) // Acquire::Item::Done - Item downloaded OK /*{{{*/ // --------------------------------------------------------------------- /* */ -void pkgAcquire::Item::Done(string Message,unsigned long Size,string, +void pkgAcquire::Item::Done(string Message,unsigned long Size,string Hash, pkgAcquire::MethodConfig *Cnf) { // We just downloaded something.. @@ -142,8 +142,9 @@ void pkgAcquire::Item::Rename(string From,string To) */ pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire *Owner, string URI,string URIDesc,string ShortDesc, - string ExpectedMD5) - : Item(Owner), RealURI(URI), ExpectedMD5(ExpectedMD5), Description(URIDesc) + HashString ExpectedHash) + : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), + Description(URIDesc) { Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); @@ -271,11 +272,11 @@ bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile) if(found) { // queue the diffs - int last_space = Description.rfind(" "); + string::size_type last_space = Description.rfind(" "); if(last_space != string::npos) Description.erase(last_space, Description.size()-last_space); new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, - ExpectedMD5, available_patches); + ExpectedHash, available_patches); Complete = false; Status = StatDone; Dequeue(); @@ -298,7 +299,7 @@ void pkgAcqDiffIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) << "Falling back to normal index file aquire" << std::endl; new pkgAcqIndex(Owner, RealURI, Description, Desc.ShortDesc, - ExpectedMD5); + ExpectedHash); Complete = false; Status = StatDone; @@ -344,8 +345,9 @@ void pkgAcqDiffIndex::Done(string Message,unsigned long Size,string Md5Hash, */ pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner, string URI,string URIDesc,string ShortDesc, - string ExpectedMD5, vector diffs) - : Item(Owner), RealURI(URI), ExpectedMD5(ExpectedMD5), + HashString ExpectedHash, + vector diffs) + : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), available_patches(diffs) { @@ -378,7 +380,7 @@ void pkgAcqIndexDiffs::Failed(string Message,pkgAcquire::MethodConfig *Cnf) std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << std::endl << "Falling back to normal index file aquire" << std::endl; new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc, - ExpectedMD5); + ExpectedHash); Finish(); } @@ -393,14 +395,7 @@ void pkgAcqIndexDiffs::Finish(bool allDone) DestFile = _config->FindDir("Dir::State::lists"); DestFile += URItoFileName(RealURI); - // do the final md5sum checking - MD5Summation sum; - FileFd Fd(DestFile, FileFd::ReadOnly); - sum.AddFD(Fd.Fd(), Fd.Size()); - Fd.Close(); - string MD5 = (string)sum.Result(); - - if (!ExpectedMD5.empty() && MD5 != ExpectedMD5) + if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile)) { Status = StatAuthError; ErrorText = _("MD5Sum mismatch"); @@ -542,7 +537,7 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long Size,string Md5Hash, // see if there is more to download if(available_patches.size() > 0) { new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, - ExpectedMD5, available_patches); + ExpectedHash, available_patches); return Finish(); } else return Finish(true); @@ -556,8 +551,8 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long Size,string Md5Hash, instantiated to fetch the revision file */ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, string URI,string URIDesc,string ShortDesc, - string ExpectedMD5, string comprExt) - : Item(Owner), RealURI(URI), ExpectedMD5(ExpectedMD5) + HashString ExpectedHash, string comprExt) + : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash) { Decompression = false; Erase = false; @@ -573,9 +568,9 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, else CompressionExtension = ".gz"; } else { - CompressionExtension = comprExt; + CompressionExtension = (comprExt == "plain" ? "" : comprExt); } - Desc.URI = URI + CompressionExtension; + Desc.URI = URI + CompressionExtension; Desc.Description = URIDesc; Desc.Owner = this; @@ -602,19 +597,30 @@ string pkgAcqIndex::Custom600Headers() void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) { + bool descChanged = false; // no .bz2 found, retry with .gz if(Desc.URI.substr(Desc.URI.size()-3) == "bz2") { - Desc.URI = Desc.URI.substr(0,Desc.URI.size()-3) + "gz"; + Desc.URI = Desc.URI.substr(0,Desc.URI.size()-3) + "gz"; + + new pkgAcqIndex(Owner, RealURI, Desc.Description,Desc.ShortDesc, + ExpectedHash, string(".gz")); + descChanged = true; + } + // no .gz found, retry with uncompressed + else if(Desc.URI.substr(Desc.URI.size()-2) == "gz") { + Desc.URI = Desc.URI.substr(0,Desc.URI.size()-2); - // retry with a gzip one - new pkgAcqIndex(Owner, RealURI, Desc.Description,Desc.ShortDesc, - ExpectedMD5, string(".gz")); + new pkgAcqIndex(Owner, RealURI, Desc.Description,Desc.ShortDesc, + ExpectedHash, string("plain")); + descChanged = true; + } + if (descChanged) { Status = StatDone; Complete = false; Dequeue(); return; - } - + } + // on decompression failure, remove bad versions in partial/ if(Decompression && Erase) { string s = _config->FindDir("Dir::State::lists") + "partial/"; @@ -633,32 +639,23 @@ void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) to the uncompressed version of the file. If this is so the file is copied into the partial directory. In all other cases the file is decompressed with a gzip uri. */ -void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5, +void pkgAcqIndex::Done(string Message,unsigned long Size,string Hash, pkgAcquire::MethodConfig *Cfg) { - Item::Done(Message,Size,MD5,Cfg); + Item::Done(Message,Size,Hash,Cfg); if (Decompression == true) { if (_config->FindB("Debug::pkgAcquire::Auth", false)) { - std::cerr << std::endl << RealURI << ": Computed MD5: " << MD5; - std::cerr << " Expected MD5: " << ExpectedMD5 << std::endl; + std::cerr << std::endl << RealURI << ": Computed Hash: " << Hash; + std::cerr << " Expected Hash: " << ExpectedHash.toStr() << std::endl; } - if (MD5.empty()) - { - MD5Summation sum; - FileFd Fd(DestFile, FileFd::ReadOnly); - sum.AddFD(Fd.Fd(), Fd.Size()); - Fd.Close(); - MD5 = (string)sum.Result(); - } - - if (!ExpectedMD5.empty() && MD5 != ExpectedMD5) + if (!ExpectedHash.empty() && ExpectedHash.toStr() != Hash) { Status = StatAuthError; - ErrorText = _("MD5Sum mismatch"); + ErrorText = _("Hash Sum mismatch"); Rename(DestFile,DestFile + ".FAILED"); return; } @@ -689,7 +686,6 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5, // The files timestamp matches if (StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true) return; - Decompression = true; Local = true; DestFile += ".decomp"; @@ -715,12 +711,14 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5, else Local = true; - string compExt = Desc.URI.substr(Desc.URI.size()-3); - char *decompProg; + string compExt = flExtension(URI(Desc.URI).Path); + const char *decompProg; if(compExt == "bz2") decompProg = "bzip2"; else if(compExt == ".gz") decompProg = "gzip"; + else if(compExt == "") + decompProg = "copy"; else { _error->Error("Unsupported extension: %s", compExt.c_str()); return; @@ -737,8 +735,8 @@ void pkgAcqIndex::Done(string Message,unsigned long Size,string MD5, // --------------------------------------------------------------------- /* The Translation file is added to the queue */ pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, - string URI,string URIDesc,string ShortDesc) : - pkgAcqIndex(Owner, URI, URIDesc, ShortDesc, "", "") + string URI,string URIDesc,string ShortDesc) + : pkgAcqIndex(Owner, URI, URIDesc, ShortDesc, HashString(), "") { } @@ -785,16 +783,19 @@ pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner, Desc.Owner = this; Desc.ShortDesc = ShortDesc; Desc.URI = URI; - string Final = _config->FindDir("Dir::State::lists"); Final += URItoFileName(RealURI); struct stat Buf; if (stat(Final.c_str(),&Buf) == 0) { - // File was already in place. It needs to be re-verified - // because Release might have changed, so Move it into partial - Rename(Final,DestFile); + // File was already in place. It needs to be re-downloaded/verified + // because Release might have changed, we do give it a differnt + // name than DestFile because otherwise the http method will + // send If-Range requests and there are too many broken servers + // out there that do not understand them + LastGoodSig = DestFile+".reverify"; + Rename(Final,LastGoodSig); } QueueURI(Desc); @@ -806,7 +807,7 @@ pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner, string pkgAcqMetaSig::Custom600Headers() { struct stat Buf; - if (stat(DestFile.c_str(),&Buf) != 0) + if (stat(LastGoodSig.c_str(),&Buf) != 0) return "\nIndex-File: true"; return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); @@ -836,6 +837,12 @@ void pkgAcqMetaSig::Done(string Message,unsigned long Size,string MD5, Complete = true; + // 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 + if(StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) + Rename(LastGoodSig, DestFile); + // queue a pkgAcqMetaIndex to be verified against the sig we just retrieved new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc, DestFile, IndexTargets, MetaIndexParser); @@ -852,7 +859,7 @@ void pkgAcqMetaSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf) Item::Failed(Message,Cnf); // move the sigfile back on transient network failures if(FileExists(DestFile)) - Rename(DestFile,Final); + Rename(LastGoodSig,Final); // set the status back to , Item::Failed likes to reset it Status = pkgAcquire::Item::StatTransientNetworkError; @@ -884,8 +891,8 @@ pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire *Owner, string SigFile, const vector* IndexTargets, indexRecords* MetaIndexParser) : - Item(Owner), RealURI(URI), SigFile(SigFile), AuthPass(false), - MetaIndexParser(MetaIndexParser), IndexTargets(IndexTargets), IMSHit(false) + Item(Owner), RealURI(URI), SigFile(SigFile), IndexTargets(IndexTargets), + MetaIndexParser(MetaIndexParser), AuthPass(false), IMSHit(false) { DestFile = _config->FindDir("Dir::State::lists") + "partial/"; DestFile += URItoFileName(URI); @@ -915,10 +922,10 @@ string pkgAcqMetaIndex::Custom600Headers() return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); } -void pkgAcqMetaIndex::Done(string Message,unsigned long Size,string MD5, +void pkgAcqMetaIndex::Done(string Message,unsigned long Size,string Hash, pkgAcquire::MethodConfig *Cfg) { - Item::Done(Message,Size,MD5,Cfg); + Item::Done(Message,Size,Hash,Cfg); // MetaIndexes are done in two passes: one to download the // metaindex with an appropriate method, and a second to verify it @@ -980,18 +987,18 @@ void pkgAcqMetaIndex::RetrievalDone(string Message) // see if the download was a IMSHit IMSHit = StringToBool(LookupTag(Message,"IMS-Hit"),false); - Complete = true; string FinalFile = _config->FindDir("Dir::State::lists"); FinalFile += URItoFileName(RealURI); - // The files timestamp matches - if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == false) - { - // Move it into position + // If we get a IMS hit we can remove the empty file in partial + // othersie we move the file in place + if (IMSHit) + unlink(DestFile.c_str()); + else Rename(DestFile,FinalFile); - } + chmod(FinalFile.c_str(),0644); DestFile = FinalFile; } @@ -1036,7 +1043,7 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) Target != IndexTargets->end(); Target++) { - string ExpectedIndexMD5; + HashString ExpectedIndexHash; if (verify) { const indexRecords::checkSum *Record = MetaIndexParser->Lookup((*Target)->MetaKey); @@ -1047,16 +1054,16 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) + (*Target)->MetaKey + " in Meta-index file (malformed Release file?)"; return; } - ExpectedIndexMD5 = Record->MD5Hash; + ExpectedIndexHash = Record->Hash; if (_config->FindB("Debug::pkgAcquire::Auth", false)) { std::cerr << "Queueing: " << (*Target)->URI << std::endl; - std::cerr << "Expected MD5: " << ExpectedIndexMD5 << std::endl; + std::cerr << "Expected Hash: " << ExpectedIndexHash.toStr() << std::endl; } - if (ExpectedIndexMD5.empty()) + if (ExpectedIndexHash.empty()) { Status = StatAuthError; - ErrorText = "Unable to find MD5 sum for " + ErrorText = "Unable to find hash sum for " + (*Target)->MetaKey + " in Meta-index file"; return; } @@ -1066,10 +1073,10 @@ void pkgAcqMetaIndex::QueueIndexes(bool verify) // on the users option) if(_config->FindB("Acquire::PDiffs",true) == true) new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description, - (*Target)->ShortDesc, ExpectedIndexMD5); + (*Target)->ShortDesc, ExpectedIndexHash); else new pkgAcqIndex(Owner, (*Target)->URI, (*Target)->Description, - (*Target)->ShortDesc, ExpectedIndexMD5); + (*Target)->ShortDesc, ExpectedIndexHash); } } @@ -1309,7 +1316,12 @@ bool pkgAcqArchive::QueueNext() return false; string PkgFile = Parse.FileName(); - MD5 = Parse.MD5Hash(); + if(Parse.SHA256Hash() != "") + ExpectedHash = HashString("SHA256", Parse.SHA256Hash()); + else if (Parse.SHA1Hash() != "") + ExpectedHash = HashString("SHA1", Parse.SHA1Hash()); + else + ExpectedHash = HashString("MD5Sum", Parse.MD5Hash()); if (PkgFile.empty() == true) return _error->Error(_("The package index files are corrupted. No Filename: " "field for package %s."), @@ -1389,10 +1401,10 @@ bool pkgAcqArchive::QueueNext() // AcqArchive::Done - Finished fetching /*{{{*/ // --------------------------------------------------------------------- /* */ -void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash, +void pkgAcqArchive::Done(string Message,unsigned long Size,string CalcHash, pkgAcquire::MethodConfig *Cfg) { - Item::Done(Message,Size,Md5Hash,Cfg); + Item::Done(Message,Size,CalcHash,Cfg); // Check the size if (Size != Version->Size) @@ -1402,17 +1414,14 @@ void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash, return; } - // Check the md5 - if (Md5Hash.empty() == false && MD5.empty() == false) + // Check the hash + if(ExpectedHash.toStr() != CalcHash) { - if (Md5Hash != MD5) - { - Status = StatError; - ErrorText = _("MD5Sum mismatch"); - if(FileExists(DestFile)) - Rename(DestFile,DestFile + ".FAILED"); - return; - } + Status = StatError; + ErrorText = _("Hash Sum mismatch"); + if(FileExists(DestFile)) + Rename(DestFile,DestFile + ".FAILED"); + return; } // Grab the output filename @@ -1504,10 +1513,10 @@ void pkgAcqArchive::Finished() // AcqFile::pkgAcqFile - Constructor /*{{{*/ // --------------------------------------------------------------------- /* The file is added to the queue */ -pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string MD5, +pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string Hash, unsigned long Size,string Dsc,string ShortDesc, const string &DestDir, const string &DestFilename) : - Item(Owner), Md5Hash(MD5) + Item(Owner), ExpectedHash(Hash) { Retries = _config->FindI("Acquire::Retries",0); @@ -1544,23 +1553,20 @@ pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string MD5, // AcqFile::Done - Item downloaded OK /*{{{*/ // --------------------------------------------------------------------- /* */ -void pkgAcqFile::Done(string Message,unsigned long Size,string MD5, +void pkgAcqFile::Done(string Message,unsigned long Size,string CalcHash, pkgAcquire::MethodConfig *Cnf) { - // Check the md5 - if (Md5Hash.empty() == false && MD5.empty() == false) + Item::Done(Message,Size,CalcHash,Cnf); + + // Check the hash + if(!ExpectedHash.empty() && ExpectedHash.toStr() != CalcHash) { - if (Md5Hash != MD5) - { - Status = StatError; - ErrorText = "MD5Sum mismatch"; - Rename(DestFile,DestFile + ".FAILED"); - return; - } + Status = StatError; + ErrorText = "Hash Sum mismatch"; + Rename(DestFile,DestFile + ".FAILED"); + return; } - Item::Done(Message,Size,MD5,Cnf); - string FileName = LookupTag(Message,"Filename"); if (FileName.empty() == true) {