diff options
Diffstat (limited to 'apt-pkg/acquire-item.cc')
| -rw-r--r-- | apt-pkg/acquire-item.cc | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index d6e9ccbe0..4bf4e62f8 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -31,6 +31,7 @@ #include <apt-pkg/pkgcache.h> #include <apt-pkg/cacheiterators.h> #include <apt-pkg/pkgrecords.h> +#include <apt-pkg/gpgv.h> #include <stddef.h> #include <stdlib.h> @@ -2836,6 +2837,216 @@ std::string pkgAcqArchive::ShortDesc() const /*{{{*/ } /*}}}*/ +// AcqChangelog::pkgAcqChangelog - Constructors /*{{{*/ +pkgAcqChangelog::pkgAcqChangelog(pkgAcquire * const Owner, pkgCache::VerIterator const &Ver, + std::string const &DestDir, std::string const &DestFilename) : + pkgAcquire::Item(Owner), d(NULL), SrcName(Ver.SourcePkgName()), SrcVersion(Ver.SourceVerStr()) +{ + Desc.URI = URI(Ver); + Init(DestDir, DestFilename); +} +// some parameters are char* here as they come likely from char* interfaces – which can also return NULL +pkgAcqChangelog::pkgAcqChangelog(pkgAcquire * const Owner, pkgCache::RlsFileIterator const &RlsFile, + char const * const Component, char const * const SrcName, char const * const SrcVersion, + const string &DestDir, const string &DestFilename) : + pkgAcquire::Item(Owner), d(NULL), SrcName(SrcName), SrcVersion(SrcVersion) +{ + Desc.URI = URI(RlsFile, Component, SrcName, SrcVersion); + Init(DestDir, DestFilename); +} +pkgAcqChangelog::pkgAcqChangelog(pkgAcquire * const Owner, + std::string const &URI, char const * const SrcName, char const * const SrcVersion, + const string &DestDir, const string &DestFilename) : + pkgAcquire::Item(Owner), d(NULL), SrcName(SrcName), SrcVersion(SrcVersion) +{ + Desc.URI = URI; + Init(DestDir, DestFilename); +} +void pkgAcqChangelog::Init(std::string const &DestDir, std::string const &DestFilename) +{ + if (Desc.URI.empty()) + { + Status = StatError; + // TRANSLATOR: %s=%s is sourcename=sourceversion, e.g. apt=1.1 + strprintf(ErrorText, _("Changelog unavailable for %s=%s"), SrcName.c_str(), SrcVersion.c_str()); + // Let the error message print something sensible rather than "Failed to fetch /" + if (DestFilename.empty()) + DestFile = SrcName + ".changelog"; + else + DestFile = DestFilename; + Desc.URI = "changelog:/" + DestFile; + return; + } + + if (DestDir.empty()) + { + std::string const systemTemp = GetTempDir(); + char tmpname[100]; + snprintf(tmpname, sizeof(tmpname), "%s/apt-changelog-XXXXXX", systemTemp.c_str()); + if (NULL == mkdtemp(tmpname)) + { + _error->Errno("mkdtemp", "mkdtemp failed in changelog acquire of %s %s", SrcName.c_str(), SrcVersion.c_str()); + Status = StatError; + return; + } + DestFile = TemporaryDirectory = tmpname; + } + else + DestFile = DestDir; + + if (DestFilename.empty()) + DestFile = flCombine(DestFile, SrcName + ".changelog"); + else + DestFile = flCombine(DestFile, DestFilename); + + Desc.ShortDesc = "Changelog"; + strprintf(Desc.Description, "%s %s %s Changelog", URI::SiteOnly(Desc.URI).c_str(), SrcName.c_str(), SrcVersion.c_str()); + Desc.Owner = this; + QueueURI(Desc); + + if (Status == StatDone) // this happens if we queue the same changelog two times + { + Complete = true; + for (pkgAcquire::UriIterator I = Owner->UriBegin(); I != Owner->UriEnd(); ++I) + if (I->URI == Desc.URI) + if (DestFile != I->Owner->DestFile) + if (symlink(I->Owner->DestFile.c_str(), DestFile.c_str()) != 0) + { + ; // ignore error, there isn't anthing we could do to handle the edgecase of an edgecase + } + } +} + /*}}}*/ +std::string pkgAcqChangelog::URI(pkgCache::VerIterator const &Ver) /*{{{*/ +{ + char const * const SrcName = Ver.SourcePkgName(); + char const * const SrcVersion = Ver.SourceVerStr(); + pkgCache::PkgFileIterator PkgFile; + // find the first source for this version which promises a changelog + for (pkgCache::VerFileIterator VF = Ver.FileList(); VF.end() == false; ++VF) + { + pkgCache::PkgFileIterator const PF = VF.File(); + if (PF.Flagged(pkgCache::Flag::NotSource) || PF->Release == 0) + continue; + PkgFile = PF; + pkgCache::RlsFileIterator const RF = PF.ReleaseFile(); + std::string const uri = URI(RF, PF.Component(), SrcName, SrcVersion); + if (uri.empty()) + continue; + return uri; + } + return ""; +} +std::string pkgAcqChangelog::URITemplate(pkgCache::RlsFileIterator const &Rls) +{ + if (Rls.end() == true || (Rls->Label == 0 && Rls->Origin == 0)) + return ""; + std::string const serverConfig = "Acquire::Changelogs::URI"; + std::string server; +#define APT_EMPTY_SERVER \ + if (server.empty() == false) \ + { \ + if (server != "no") \ + return server; \ + return ""; \ + } +#define APT_CHECK_SERVER(X, Y) \ + if (Rls->X != 0) \ + { \ + std::string const specialServerConfig = serverConfig + "::" + Y + #X + "::" + Rls.X(); \ + server = _config->Find(specialServerConfig); \ + APT_EMPTY_SERVER \ + } + // this way e.g. Debian-Security can fallback to Debian + APT_CHECK_SERVER(Label, "Override::") + APT_CHECK_SERVER(Origin, "Override::") + + if (RealFileExists(Rls.FileName())) + { + _error->PushToStack(); + FileFd rf; + /* This can be costly. A caller wanting to get millions of URIs might + want to do this on its own once and use Override settings. + We don't do this here as Origin/Label are not as unique as they + should be so this could produce request order-dependent anomalies */ + if (OpenMaybeClearSignedFile(Rls.FileName(), rf) == true) + { + pkgTagFile TagFile(&rf, rf.Size()); + pkgTagSection Section; + if (TagFile.Step(Section) == true) + server = Section.FindS("Changelogs"); + } + _error->RevertToStack(); + APT_EMPTY_SERVER + } + + APT_CHECK_SERVER(Label, "") + APT_CHECK_SERVER(Origin, "") +#undef APT_CHECK_SERVER +#undef APT_EMPTY_SERVER + return ""; +} +std::string pkgAcqChangelog::URI(pkgCache::RlsFileIterator const &Rls, + char const * const Component, char const * const SrcName, + char const * const SrcVersion) +{ + return URI(URITemplate(Rls), Component, SrcName, SrcVersion); +} +std::string pkgAcqChangelog::URI(std::string const &Template, + char const * const Component, char const * const SrcName, + char const * const SrcVersion) +{ + if (Template.find("CHANGEPATH") == std::string::npos) + return ""; + + // the path is: COMPONENT/SRC/SRCNAME/SRCNAME_SRCVER, e.g. main/a/apt/1.1 or contrib/liba/libapt/2.0 + std::string Src = SrcName; + std::string path = APT::String::Startswith(SrcName, "lib") ? Src.substr(0, 4) : Src.substr(0,1); + path.append("/").append(Src).append("/"); + path.append(Src).append("_").append(StripEpoch(SrcVersion)); + // we omit component for releases without one (= flat-style repositories) + if (Component != NULL && strlen(Component) != 0) + path = std::string(Component) + "/" + path; + + return SubstVar(Template, "CHANGEPATH", path); +} + /*}}}*/ +// AcqChangelog::Failed - Failure handler /*{{{*/ +void pkgAcqChangelog::Failed(string const &Message, pkgAcquire::MethodConfig const * const Cnf) +{ + Item::Failed(Message,Cnf); + + std::string errText; + // TRANSLATOR: %s=%s is sourcename=sourceversion, e.g. apt=1.1 + strprintf(errText, _("Changelog unavailable for %s=%s"), SrcName.c_str(), SrcVersion.c_str()); + + // Error is probably something techy like 404 Not Found + if (ErrorText.empty()) + ErrorText = errText; + else + ErrorText = errText + " (" + ErrorText + ")"; + return; +} + /*}}}*/ +// AcqChangelog::Done - Item downloaded OK /*{{{*/ +void pkgAcqChangelog::Done(string const &Message,HashStringList const &CalcHashes, + pkgAcquire::MethodConfig const * const Cnf) +{ + Item::Done(Message,CalcHashes,Cnf); + + Complete = true; +} + /*}}}*/ +pkgAcqChangelog::~pkgAcqChangelog() /*{{{*/ +{ + if (TemporaryDirectory.empty() == false) + { + unlink(DestFile.c_str()); + rmdir(TemporaryDirectory.c_str()); + } +} + /*}}}*/ + // AcqFile::pkgAcqFile - Constructor /*{{{*/ pkgAcqFile::pkgAcqFile(pkgAcquire * const Owner,string const &URI, HashStringList const &Hashes, unsigned long long const Size,string const &Dsc,string const &ShortDesc, |