X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/0a8a80e58374771acc225fe1e08ed8e0fe0016cc..cd14eaf27b6d7434e73ecf1c04fbc55be6e88c1f:/apt-pkg/acquire-item.cc diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index e1049dde9..7ff3a58e9 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: acquire-item.cc,v 1.3 1998/10/22 04:56:38 jgg Exp $ +// $Id: acquire-item.cc,v 1.44 2001/05/07 05:49:43 jgg Exp $ /* ###################################################################### Acquire Item - Item to acquire @@ -9,7 +9,7 @@ cannot create an item that fetches two uri's to two files at the same time. The pkgAcqIndex class creates a second class upon instantiation to fetch the other index files because of this. - + ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ @@ -18,18 +18,31 @@ #endif #include #include -#include +#include +#include +#include +#include +#include + #include #include +#include +#include +#include /*}}}*/ +using std::string; + // Acquire::Item::Item - Constructor /*{{{*/ // --------------------------------------------------------------------- /* */ -pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), QueueCounter(0) +pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0), + PartialSize(0), Mode(0), ID(0), Complete(false), + Local(false), QueueCounter(0) { Owner->Add(this); + Status = StatIdle; } /*}}}*/ // Acquire::Item::~Item - Destructor /*{{{*/ @@ -40,21 +53,103 @@ pkgAcquire::Item::~Item() Owner->Remove(this); } /*}}}*/ +// Acquire::Item::Failed - Item failed to download /*{{{*/ +// --------------------------------------------------------------------- +/* We return to an idle state if there are still other queues that could + fetch this object */ +void pkgAcquire::Item::Failed(string Message,pkgAcquire::MethodConfig *Cnf) +{ + Status = StatIdle; + ErrorText = LookupTag(Message,"Message"); + if (QueueCounter <= 1) + { + /* This indicates that the file is not available right now but might + be sometime later. If we do a retry cycle then this should be + retried [CDROMs] */ + if (Cnf->LocalOnly == true && + StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) + { + Status = StatIdle; + Dequeue(); + return; + } + + Status = StatError; + Dequeue(); + } +} + /*}}}*/ +// Acquire::Item::Start - Item has begun to download /*{{{*/ +// --------------------------------------------------------------------- +/* Stash status and the file size. Note that setting Complete means + sub-phases of the acquire process such as decompresion are operating */ +void pkgAcquire::Item::Start(string /*Message*/,unsigned long Size) +{ + Status = StatFetching; + if (FileSize == 0 && Complete == false) + FileSize = Size; +} + /*}}}*/ +// Acquire::Item::Done - Item downloaded OK /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void pkgAcquire::Item::Done(string Message,unsigned long Size,string, + pkgAcquire::MethodConfig *Cnf) +{ + // We just downloaded something.. + string FileName = LookupTag(Message,"Filename"); + if (Complete == false && FileName == DestFile) + { + if (Owner->Log != 0) + Owner->Log->Fetched(Size,atoi(LookupTag(Message,"Resume-Point","0").c_str())); + } + + if (FileSize == 0) + FileSize= Size; + + Status = StatDone; + ErrorText = string(); + Owner->Dequeue(this); +} + /*}}}*/ +// Acquire::Item::Rename - Rename a file /*{{{*/ +// --------------------------------------------------------------------- +/* This helper function is used by alot of item methods as thier final + step */ +void pkgAcquire::Item::Rename(string From,string To) +{ + if (rename(From.c_str(),To.c_str()) != 0) + { + char S[300]; + sprintf(S,_("rename failed, %s (%s -> %s)."),strerror(errno), + From.c_str(),To.c_str()); + Status = StatError; + ErrorText = S; + } +} + /*}}}*/ // AcqIndex::AcqIndex - Constructor /*{{{*/ // --------------------------------------------------------------------- /* The package file is added to the queue and a second class is - instantiated to fetch the revision file */ -pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location) : - Item(Owner), Location(Location) + instantiated to fetch the revision file */ +pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, + string URI,string URIDesc,string ShortDesc) : + Item(Owner), RealURI(URI) { - DestFile = _config->FindDir("Dir::State::lists") + "partial/"; - DestFile += URItoFileName(Location->PackagesURI()); + Decompression = false; + Erase = false; - QueueURI(Location->PackagesURI() + ".gz",Location->PackagesInfo()); - - // Create the Release fetch class - new pkgAcqIndexRel(Owner,Location); + DestFile = _config->FindDir("Dir::State::lists") + "partial/"; + DestFile += URItoFileName(URI); + + // Create the item + Desc.URI = URI + ".gz"; + Desc.Description = URIDesc; + Desc.Owner = this; + Desc.ShortDesc = ShortDesc; + + QueueURI(Desc); } /*}}}*/ // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ @@ -63,26 +158,106 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner,const pkgSourceList::Item *Location) string pkgAcqIndex::Custom600Headers() { string Final = _config->FindDir("Dir::State::lists"); - Final += URItoFileName(Location->PackagesURI()); + Final += URItoFileName(RealURI); struct stat Buf; if (stat(Final.c_str(),&Buf) != 0) - return string(); + return "\nIndex-File: true"; - return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); + return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); } /*}}}*/ +// AcqIndex::Done - Finished a fetch /*{{{*/ +// --------------------------------------------------------------------- +/* This goes through a number of states.. On the initial fetch the + method could possibly return an alternate filename which points + 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, + pkgAcquire::MethodConfig *Cfg) +{ + Item::Done(Message,Size,MD5,Cfg); + + if (Decompression == true) + { + // Done, move it into position + string FinalFile = _config->FindDir("Dir::State::lists"); + FinalFile += URItoFileName(RealURI); + Rename(DestFile,FinalFile); + + /* We restore the original name to DestFile so that the clean operation + will work OK */ + DestFile = _config->FindDir("Dir::State::lists") + "partial/"; + DestFile += URItoFileName(RealURI); + + // Remove the compressed version. + if (Erase == true) + unlink(DestFile.c_str()); + return; + } + + Erase = false; + Complete = true; + + // Handle the unzipd case + string FileName = LookupTag(Message,"Alt-Filename"); + if (FileName.empty() == false) + { + // The files timestamp matches + if (StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true) + return; + + Decompression = true; + Local = true; + DestFile += ".decomp"; + Desc.URI = "copy:" + FileName; + QueueURI(Desc); + Mode = "copy"; + return; + } + + FileName = LookupTag(Message,"Filename"); + if (FileName.empty() == true) + { + Status = StatError; + ErrorText = "Method gave a blank filename"; + } + + // The files timestamp matches + if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) + return; + + if (FileName == DestFile) + Erase = true; + else + Local = true; + + Decompression = true; + DestFile += ".decomp"; + Desc.URI = "gzip:" + FileName; + QueueURI(Desc); + Mode = "gzip"; +} + /*}}}*/ + // AcqIndexRel::pkgAcqIndexRel - Constructor /*{{{*/ // --------------------------------------------------------------------- /* The Release file is added to the queue */ pkgAcqIndexRel::pkgAcqIndexRel(pkgAcquire *Owner, - const pkgSourceList::Item *Location) : - Item(Owner), Location(Location) + string URI,string URIDesc,string ShortDesc) : + Item(Owner), RealURI(URI) { DestFile = _config->FindDir("Dir::State::lists") + "partial/"; - DestFile += URItoFileName(Location->ReleaseURI()); + DestFile += URItoFileName(URI); - QueueURI(Location->ReleaseURI(),Location->ReleaseInfo()); + // Create the item + Desc.URI = URI; + Desc.Description = URIDesc; + Desc.ShortDesc = ShortDesc; + Desc.Owner = this; + + QueueURI(Desc); } /*}}}*/ // AcqIndexRel::Custom600Headers - Insert custom request headers /*{{{*/ @@ -91,12 +266,443 @@ pkgAcqIndexRel::pkgAcqIndexRel(pkgAcquire *Owner, string pkgAcqIndexRel::Custom600Headers() { string Final = _config->FindDir("Dir::State::lists"); - Final += URItoFileName(Location->ReleaseURI()); + Final += URItoFileName(RealURI); struct stat Buf; if (stat(Final.c_str(),&Buf) != 0) - return string(); + return "\nIndex-File: true"; + + return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); +} + /*}}}*/ +// AcqIndexRel::Done - Item downloaded OK /*{{{*/ +// --------------------------------------------------------------------- +/* The release file was not placed into the download directory then + a copy URI is generated and it is copied there otherwise the file + in the partial directory is moved into .. and the URI is finished. */ +void pkgAcqIndexRel::Done(string Message,unsigned long Size,string MD5, + pkgAcquire::MethodConfig *Cfg) +{ + Item::Done(Message,Size,MD5,Cfg); + + string FileName = LookupTag(Message,"Filename"); + if (FileName.empty() == true) + { + Status = StatError; + ErrorText = "Method gave a blank filename"; + return; + } + + Complete = true; + + // The files timestamp matches + if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) + return; + + // We have to copy it into place + if (FileName != DestFile) + { + Local = true; + Desc.URI = "copy:" + FileName; + QueueURI(Desc); + return; + } + + // Done, move it into position + string FinalFile = _config->FindDir("Dir::State::lists"); + FinalFile += URItoFileName(RealURI); + Rename(DestFile,FinalFile); +} + /*}}}*/ +// AcqIndexRel::Failed - Silence failure messages for missing rel files /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void pkgAcqIndexRel::Failed(string Message,pkgAcquire::MethodConfig *Cnf) +{ + if (Cnf->LocalOnly == true || + StringToBool(LookupTag(Message,"Transient-Failure"),false) == false) + { + // Ignore this + Status = StatDone; + Complete = false; + Dequeue(); + return; + } + + Item::Failed(Message,Cnf); +} + /*}}}*/ + +// AcqArchive::AcqArchive - Constructor /*{{{*/ +// --------------------------------------------------------------------- +/* This just sets up the initial fetch environment and queues the first + possibilitiy */ +pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources, + pkgRecords *Recs,pkgCache::VerIterator const &Version, + string &StoreFilename) : + Item(Owner), Version(Version), Sources(Sources), Recs(Recs), + StoreFilename(StoreFilename), Vf(Version.FileList()) +{ + Retries = _config->FindI("Acquire::Retries",0); + + if (Version.Arch() == 0) + { + _error->Error(_("I wasn't able to locate a file for the %s package. " + "This might mean you need to manually fix this package. (due to missing arch)"), + Version.ParentPkg().Name()); + return; + } + + /* We need to find a filename to determine the extension. We make the + assumption here that all the available sources for this version share + the same extension.. */ + // Skip not source sources, they do not have file fields. + for (; Vf.end() == false; Vf++) + { + if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0) + continue; + break; + } + + // Does not really matter here.. we are going to fail out below + if (Vf.end() != true) + { + // If this fails to get a file name we will bomb out below. + pkgRecords::Parser &Parse = Recs->Lookup(Vf); + if (_error->PendingError() == true) + return; + + // Generate the final file name as: package_version_arch.foo + StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' + + QuoteString(Version.VerStr(),"_:") + '_' + + QuoteString(Version.Arch(),"_:.") + + "." + flExtension(Parse.FileName()); + } + + // Select a source + if (QueueNext() == false && _error->PendingError() == false) + _error->Error(_("I wasn't able to locate file for the %s package. " + "This might mean you need to manually fix this package."), + Version.ParentPkg().Name()); +} + /*}}}*/ +// AcqArchive::QueueNext - Queue the next file source /*{{{*/ +// --------------------------------------------------------------------- +/* This queues the next available file version for download. It checks if + the archive is already available in the cache and stashs the MD5 for + checking later. */ +bool pkgAcqArchive::QueueNext() +{ + for (; Vf.end() == false; Vf++) + { + // Ignore not source sources + if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0) + continue; + + // Try to cross match against the source list + pkgIndexFile *Index; + if (Sources->FindIndex(Vf.File(),Index) == false) + continue; + + // Grab the text package record + pkgRecords::Parser &Parse = Recs->Lookup(Vf); + if (_error->PendingError() == true) + return false; + + string PkgFile = Parse.FileName(); + MD5 = Parse.MD5Hash(); + if (PkgFile.empty() == true) + return _error->Error(_("The package index files are corrupted. No Filename: " + "field for package %s."), + Version.ParentPkg().Name()); + + // See if we already have the file. (Legacy filenames) + FileSize = Version->Size; + string FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(PkgFile); + struct stat Buf; + if (stat(FinalFile.c_str(),&Buf) == 0) + { + // Make sure the size matches + if ((unsigned)Buf.st_size == Version->Size) + { + Complete = true; + Local = true; + Status = StatDone; + StoreFilename = DestFile = FinalFile; + return true; + } + + /* Hmm, we have a file and its size does not match, this means it is + an old style mismatched arch */ + unlink(FinalFile.c_str()); + } + + // Check it again using the new style output filenames + FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(StoreFilename); + if (stat(FinalFile.c_str(),&Buf) == 0) + { + // Make sure the size matches + if ((unsigned)Buf.st_size == Version->Size) + { + Complete = true; + Local = true; + Status = StatDone; + StoreFilename = DestFile = FinalFile; + return true; + } + + /* Hmm, we have a file and its size does not match, this shouldnt + happen.. */ + unlink(FinalFile.c_str()); + } + + DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename); + + // Check the destination file + if (stat(DestFile.c_str(),&Buf) == 0) + { + // Hmm, the partial file is too big, erase it + if ((unsigned)Buf.st_size > Version->Size) + unlink(DestFile.c_str()); + else + PartialSize = Buf.st_size; + } + + // Create the item + Local = false; + Desc.URI = Index->ArchiveURI(PkgFile); + Desc.Description = Index->ArchiveInfo(Version); + Desc.Owner = this; + Desc.ShortDesc = Version.ParentPkg().Name(); + QueueURI(Desc); + + Vf++; + return true; + } + return false; +} + /*}}}*/ +// AcqArchive::Done - Finished fetching /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void pkgAcqArchive::Done(string Message,unsigned long Size,string Md5Hash, + pkgAcquire::MethodConfig *Cfg) +{ + Item::Done(Message,Size,Md5Hash,Cfg); + + // Check the size + if (Size != Version->Size) + { + Status = StatError; + ErrorText = _("Size mismatch"); + return; + } + + // Check the md5 + if (Md5Hash.empty() == false && MD5.empty() == false) + { + if (Md5Hash != MD5) + { + Status = StatError; + ErrorText = _("MD5Sum mismatch"); + Rename(DestFile,DestFile + ".FAILED"); + return; + } + } + + // Grab the output filename + string FileName = LookupTag(Message,"Filename"); + if (FileName.empty() == true) + { + Status = StatError; + ErrorText = "Method gave a blank filename"; + return; + } + + Complete = true; + + // Reference filename + if (FileName != DestFile) + { + StoreFilename = DestFile = FileName; + Local = true; + return; + } + + // Done, move it into position + string FinalFile = _config->FindDir("Dir::Cache::Archives"); + FinalFile += flNotDir(StoreFilename); + Rename(DestFile,FinalFile); + + StoreFilename = DestFile = FinalFile; + Complete = true; +} + /*}}}*/ +// AcqArchive::Failed - Failure handler /*{{{*/ +// --------------------------------------------------------------------- +/* Here we try other sources */ +void pkgAcqArchive::Failed(string Message,pkgAcquire::MethodConfig *Cnf) +{ + ErrorText = LookupTag(Message,"Message"); + + /* We don't really want to retry on failed media swaps, this prevents + that. An interesting observation is that permanent failures are not + recorded. */ + if (Cnf->Removable == true && + StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) + { + // Vf = Version.FileList(); + while (Vf.end() == false) Vf++; + StoreFilename = string(); + Item::Failed(Message,Cnf); + return; + } + + if (QueueNext() == false) + { + // This is the retry counter + if (Retries != 0 && + Cnf->LocalOnly == false && + StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) + { + Retries--; + Vf = Version.FileList(); + if (QueueNext() == true) + return; + } + + StoreFilename = string(); + Item::Failed(Message,Cnf); + } +} + /*}}}*/ +// AcqArchive::Finished - Fetching has finished, tidy up /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void pkgAcqArchive::Finished() +{ + if (Status == pkgAcquire::Item::StatDone && + Complete == true) + return; + StoreFilename = string(); +} + /*}}}*/ + +// AcqFile::pkgAcqFile - Constructor /*{{{*/ +// --------------------------------------------------------------------- +/* The file is added to the queue */ +pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string MD5, + unsigned long Size,string Dsc,string ShortDesc) : + Item(Owner), Md5Hash(MD5) +{ + Retries = _config->FindI("Acquire::Retries",0); + + DestFile = flNotDir(URI); + + // Create the item + Desc.URI = URI; + Desc.Description = Dsc; + Desc.Owner = this; + + // Set the short description to the archive component + Desc.ShortDesc = ShortDesc; + + // Get the transfer sizes + FileSize = Size; + struct stat Buf; + if (stat(DestFile.c_str(),&Buf) == 0) + { + // Hmm, the partial file is too big, erase it + if ((unsigned)Buf.st_size > Size) + unlink(DestFile.c_str()); + else + PartialSize = Buf.st_size; + } + + QueueURI(Desc); +} + /*}}}*/ +// AcqFile::Done - Item downloaded OK /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void pkgAcqFile::Done(string Message,unsigned long Size,string MD5, + pkgAcquire::MethodConfig *Cnf) +{ + // Check the md5 + if (Md5Hash.empty() == false && MD5.empty() == false) + { + if (Md5Hash != MD5) + { + Status = StatError; + ErrorText = "MD5Sum mismatch"; + Rename(DestFile,DestFile + ".FAILED"); + return; + } + } + + Item::Done(Message,Size,MD5,Cnf); + + string FileName = LookupTag(Message,"Filename"); + if (FileName.empty() == true) + { + Status = StatError; + ErrorText = "Method gave a blank filename"; + return; + } + + Complete = true; + + // The files timestamp matches + if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) + return; + + // We have to copy it into place + if (FileName != DestFile) + { + Local = true; + if (_config->FindB("Acquire::Source-Symlinks",true) == false || + Cnf->Removable == true) + { + Desc.URI = "copy:" + FileName; + QueueURI(Desc); + return; + } + + // Erase the file if it is a symlink so we can overwrite it + struct stat St; + if (lstat(DestFile.c_str(),&St) == 0) + { + if (S_ISLNK(St.st_mode) != 0) + unlink(DestFile.c_str()); + } + + // Symlink the file + if (symlink(FileName.c_str(),DestFile.c_str()) != 0) + { + ErrorText = "Link to " + DestFile + " failure "; + Status = StatError; + Complete = false; + } + } +} + /*}}}*/ +// AcqFile::Failed - Failure handler /*{{{*/ +// --------------------------------------------------------------------- +/* Here we try other sources */ +void pkgAcqFile::Failed(string Message,pkgAcquire::MethodConfig *Cnf) +{ + ErrorText = LookupTag(Message,"Message"); + + // This is the retry counter + if (Retries != 0 && + Cnf->LocalOnly == false && + StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) + { + Retries--; + QueueURI(Desc); + return; + } - return "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); + Item::Failed(Message,Cnf); } /*}}}*/