diff options
Diffstat (limited to 'apt-pkg/deb')
| -rw-r--r-- | apt-pkg/deb/debsrcrecords.cc | 170 |
1 files changed, 99 insertions, 71 deletions
diff --git a/apt-pkg/deb/debsrcrecords.cc b/apt-pkg/deb/debsrcrecords.cc index 7b9a828d3..bf5e56ec9 100644 --- a/apt-pkg/deb/debsrcrecords.cc +++ b/apt-pkg/deb/debsrcrecords.cc @@ -124,85 +124,113 @@ bool debSrcRecordParser::Files(std::vector<pkgSrcRecords::File> &List) { List.erase(List.begin(),List.end()); - // map from the Hashsum field to the hashsum function, - // unfortunately this is not a 1:1 mapping from - // Hashes::SupporedHashes as e.g. Files is a historic name for the md5 - const std::pair<const char*, const char*> SourceHashFields[] = { - std::make_pair( "Checksums-Sha512", "SHA512"), - std::make_pair( "Checksums-Sha256", "SHA256"), - std::make_pair( "Checksums-Sha1", "SHA1"), - std::make_pair( "Files", "MD5Sum"), // historic Name - }; - - for (unsigned int i=0; - i < sizeof(SourceHashFields)/sizeof(SourceHashFields[0]); - i++) - { - string Files = Sect.FindS(SourceHashFields[i].first); - if (Files.empty() == true) - continue; + // Stash the / terminated directory prefix + string Base = Sect.FindS("Directory"); + if (Base.empty() == false && Base[Base.length()-1] != '/') + Base += '/'; - // Stash the / terminated directory prefix - string Base = Sect.FindS("Directory"); - if (Base.empty() == false && Base[Base.length()-1] != '/') - Base += '/'; + std::vector<std::string> const compExts = APT::Configuration::getCompressorExtensions(); - std::vector<std::string> const compExts = APT::Configuration::getCompressorExtensions(); + for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type) + { + // derive field from checksum type + std::string checksumField("Checksums-"); + if (strcmp(*type, "MD5Sum") == 0) + checksumField = "Files"; // historic name for MD5 checksums + else + checksumField.append(*type); + + string const Files = Sect.FindS(checksumField.c_str()); + if (Files.empty() == true) + continue; // Iterate over the entire list grabbing each triplet const char *C = Files.c_str(); while (*C != 0) - { - pkgSrcRecords::File F; - string Size; - - // Parse each of the elements - std::string RawHash; - if (ParseQuoteWord(C, RawHash) == false || - ParseQuoteWord(C, Size) == false || - ParseQuoteWord(C, F.Path) == false) - return _error->Error("Error parsing '%s' record", - SourceHashFields[i].first); - // assign full hash string - F.Hash = HashString(SourceHashFields[i].second, RawHash).toStr(); - // API compat hack - if(strcmp(SourceHashFields[i].second, "MD5Sum") == 0) - F.MD5Hash = RawHash; - - // Parse the size and append the directory - F.Size = atoi(Size.c_str()); - F.Path = Base + F.Path; - - // Try to guess what sort of file it is we are getting. - string::size_type Pos = F.Path.length()-1; - while (1) - { - string::size_type Tmp = F.Path.rfind('.',Pos); - if (Tmp == string::npos) - break; - if (F.Type == "tar") { - // source v3 has extension 'debian.tar.*' instead of 'diff.*' - if (string(F.Path, Tmp+1, Pos-Tmp) == "debian") - F.Type = "diff"; - break; - } - F.Type = string(F.Path,Tmp+1,Pos-Tmp); - - if (std::find(compExts.begin(), compExts.end(), std::string(".").append(F.Type)) != compExts.end() || - F.Type == "tar") - { - Pos = Tmp-1; - continue; - } - - break; - } - - List.push_back(F); + { + string hash, size, path; + + // Parse each of the elements + if (ParseQuoteWord(C, hash) == false || + ParseQuoteWord(C, size) == false || + ParseQuoteWord(C, path) == false) + return _error->Error("Error parsing file record in %s of source package %s", checksumField.c_str(), Package().c_str()); + + HashString const hashString(*type, hash); + if (Base.empty() == false) + path = Base + path; + + // look if we have a record for this file already + std::vector<pkgSrcRecords::File>::iterator file = List.begin(); + for (; file != List.end(); ++file) + if (file->Path == path) + break; + + // we have it already, store the new hash and be done + if (file != List.end()) + { +#if __GNUC__ >= 4 + // set for compatibility only, so warn users not us + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif + if (checksumField == "Files") + file->MD5Hash = hash; +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif + // an error here indicates that we have two different hashes for the same file + if (file->Hashes.push_back(hashString) == false) + return _error->Error("Error parsing checksum in %s of source package %s", checksumField.c_str(), Package().c_str()); + continue; + } + + // we haven't seen this file yet + pkgSrcRecords::File F; + F.Path = path; + F.Size = strtoull(size.c_str(), NULL, 10); + F.Hashes.push_back(hashString); + +#if __GNUC__ >= 4 + // set for compatibility only, so warn users not us + #pragma GCC diagnostic push + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif + if (checksumField == "Files") + F.MD5Hash = hash; +#if __GNUC__ >= 4 + #pragma GCC diagnostic pop +#endif + + // Try to guess what sort of file it is we are getting. + string::size_type Pos = F.Path.length()-1; + while (1) + { + string::size_type Tmp = F.Path.rfind('.',Pos); + if (Tmp == string::npos) + break; + if (F.Type == "tar") { + // source v3 has extension 'debian.tar.*' instead of 'diff.*' + if (string(F.Path, Tmp+1, Pos-Tmp) == "debian") + F.Type = "diff"; + break; + } + F.Type = string(F.Path,Tmp+1,Pos-Tmp); + + if (std::find(compExts.begin(), compExts.end(), std::string(".").append(F.Type)) != compExts.end() || + F.Type == "tar") + { + Pos = Tmp-1; + continue; + } + + break; + } + List.push_back(F); } - break; } - return (List.size() > 0); + + return true; } /*}}}*/ // SrcRecordParser::~SrcRecordParser - Destructor /*{{{*/ |