| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: debsrcrecords.cc,v 1.6 2004/03/17 05:58:54 mdz Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Debian Source Package Records - Parser implementation for Debian style |
| 7 | source indexes |
| 8 | |
| 9 | ##################################################################### */ |
| 10 | /*}}}*/ |
| 11 | // Include Files /*{{{*/ |
| 12 | #include <config.h> |
| 13 | |
| 14 | #include <apt-pkg/deblistparser.h> |
| 15 | #include <apt-pkg/debsrcrecords.h> |
| 16 | #include <apt-pkg/error.h> |
| 17 | #include <apt-pkg/strutl.h> |
| 18 | #include <apt-pkg/aptconfiguration.h> |
| 19 | #include <apt-pkg/srcrecords.h> |
| 20 | #include <apt-pkg/tagfile.h> |
| 21 | |
| 22 | #include <ctype.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <algorithm> |
| 26 | #include <string> |
| 27 | #include <vector> |
| 28 | /*}}}*/ |
| 29 | |
| 30 | using std::max; |
| 31 | using std::string; |
| 32 | |
| 33 | // SrcRecordParser::Binaries - Return the binaries field /*{{{*/ |
| 34 | // --------------------------------------------------------------------- |
| 35 | /* This member parses the binaries field into a pair of class arrays and |
| 36 | returns a list of strings representing all of the components of the |
| 37 | binaries field. The returned array need not be freed and will be |
| 38 | reused by the next Binaries function call. This function is commonly |
| 39 | used during scanning to find the right package */ |
| 40 | const char **debSrcRecordParser::Binaries() |
| 41 | { |
| 42 | const char *Start, *End; |
| 43 | if (Sect.Find("Binary", Start, End) == false) |
| 44 | return NULL; |
| 45 | for (; isspace(*Start) != 0; ++Start); |
| 46 | if (Start >= End) |
| 47 | return NULL; |
| 48 | |
| 49 | StaticBinList.clear(); |
| 50 | free(Buffer); |
| 51 | Buffer = strndup(Start, End - Start); |
| 52 | |
| 53 | char* bin = Buffer; |
| 54 | do { |
| 55 | char* binStartNext = strchrnul(bin, ','); |
| 56 | char* binEnd = binStartNext - 1; |
| 57 | for (; isspace(*binEnd) != 0; --binEnd) |
| 58 | binEnd = '\0'; |
| 59 | StaticBinList.push_back(bin); |
| 60 | if (*binStartNext != ',') |
| 61 | break; |
| 62 | *binStartNext = '\0'; |
| 63 | for (bin = binStartNext + 1; isspace(*bin) != 0; ++bin); |
| 64 | } while (*bin != '\0'); |
| 65 | StaticBinList.push_back(NULL); |
| 66 | |
| 67 | return &StaticBinList[0]; |
| 68 | } |
| 69 | /*}}}*/ |
| 70 | // SrcRecordParser::BuildDepends - Return the Build-Depends information /*{{{*/ |
| 71 | // --------------------------------------------------------------------- |
| 72 | /* This member parses the build-depends information and returns a list of |
| 73 | package/version records representing the build dependency. The returned |
| 74 | array need not be freed and will be reused by the next call to this |
| 75 | function */ |
| 76 | bool debSrcRecordParser::BuildDepends(std::vector<pkgSrcRecords::Parser::BuildDepRec> &BuildDeps, |
| 77 | bool const &ArchOnly, bool const &StripMultiArch) |
| 78 | { |
| 79 | unsigned int I; |
| 80 | const char *Start, *Stop; |
| 81 | BuildDepRec rec; |
| 82 | const char *fields[] = {"Build-Depends", |
| 83 | "Build-Depends-Indep", |
| 84 | "Build-Conflicts", |
| 85 | "Build-Conflicts-Indep"}; |
| 86 | |
| 87 | BuildDeps.clear(); |
| 88 | |
| 89 | for (I = 0; I < 4; I++) |
| 90 | { |
| 91 | if (ArchOnly && (I == 1 || I == 3)) |
| 92 | continue; |
| 93 | |
| 94 | if (Sect.Find(fields[I], Start, Stop) == false) |
| 95 | continue; |
| 96 | |
| 97 | while (1) |
| 98 | { |
| 99 | Start = debListParser::ParseDepends(Start, Stop, |
| 100 | rec.Package,rec.Version,rec.Op,true,StripMultiArch,true); |
| 101 | |
| 102 | if (Start == 0) |
| 103 | return _error->Error("Problem parsing dependency: %s", fields[I]); |
| 104 | rec.Type = I; |
| 105 | |
| 106 | if (rec.Package != "") |
| 107 | BuildDeps.push_back(rec); |
| 108 | |
| 109 | if (Start == Stop) |
| 110 | break; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | return true; |
| 115 | } |
| 116 | /*}}}*/ |
| 117 | // SrcRecordParser::Files - Return a list of files for this source /*{{{*/ |
| 118 | // --------------------------------------------------------------------- |
| 119 | /* This parses the list of files and returns it, each file is required to have |
| 120 | a complete source package */ |
| 121 | bool debSrcRecordParser::Files(std::vector<pkgSrcRecords::File> &F) |
| 122 | { |
| 123 | std::vector<pkgSrcRecords::File2> F2; |
| 124 | if (Files2(F2) == false) |
| 125 | return false; |
| 126 | for (std::vector<pkgSrcRecords::File2>::const_iterator f2 = F2.begin(); f2 != F2.end(); ++f2) |
| 127 | { |
| 128 | pkgSrcRecords::File2 f; |
| 129 | #if __GNUC__ >= 4 |
| 130 | #pragma GCC diagnostic push |
| 131 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" |
| 132 | #endif |
| 133 | f.MD5Hash = f2->MD5Hash; |
| 134 | f.Size = f2->Size; |
| 135 | #if __GNUC__ >= 4 |
| 136 | #pragma GCC diagnostic pop |
| 137 | #endif |
| 138 | f.Path = f2->Path; |
| 139 | f.Type = f2->Type; |
| 140 | F.push_back(f); |
| 141 | } |
| 142 | return true; |
| 143 | } |
| 144 | bool debSrcRecordParser::Files2(std::vector<pkgSrcRecords::File2> &List) |
| 145 | { |
| 146 | List.clear(); |
| 147 | |
| 148 | // Stash the / terminated directory prefix |
| 149 | string Base = Sect.FindS("Directory"); |
| 150 | if (Base.empty() == false && Base[Base.length()-1] != '/') |
| 151 | Base += '/'; |
| 152 | |
| 153 | std::vector<std::string> const compExts = APT::Configuration::getCompressorExtensions(); |
| 154 | |
| 155 | for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type) |
| 156 | { |
| 157 | // derive field from checksum type |
| 158 | std::string checksumField("Checksums-"); |
| 159 | if (strcmp(*type, "MD5Sum") == 0) |
| 160 | checksumField = "Files"; // historic name for MD5 checksums |
| 161 | else |
| 162 | checksumField.append(*type); |
| 163 | |
| 164 | string const Files = Sect.FindS(checksumField.c_str()); |
| 165 | if (Files.empty() == true) |
| 166 | continue; |
| 167 | |
| 168 | // Iterate over the entire list grabbing each triplet |
| 169 | const char *C = Files.c_str(); |
| 170 | while (*C != 0) |
| 171 | { |
| 172 | string hash, size, path; |
| 173 | |
| 174 | // Parse each of the elements |
| 175 | if (ParseQuoteWord(C, hash) == false || |
| 176 | ParseQuoteWord(C, size) == false || |
| 177 | ParseQuoteWord(C, path) == false) |
| 178 | return _error->Error("Error parsing file record in %s of source package %s", checksumField.c_str(), Package().c_str()); |
| 179 | |
| 180 | HashString const hashString(*type, hash); |
| 181 | if (Base.empty() == false) |
| 182 | path = Base + path; |
| 183 | |
| 184 | // look if we have a record for this file already |
| 185 | std::vector<pkgSrcRecords::File2>::iterator file = List.begin(); |
| 186 | for (; file != List.end(); ++file) |
| 187 | if (file->Path == path) |
| 188 | break; |
| 189 | |
| 190 | // we have it already, store the new hash and be done |
| 191 | if (file != List.end()) |
| 192 | { |
| 193 | #if __GNUC__ >= 4 |
| 194 | // set for compatibility only, so warn users not us |
| 195 | #pragma GCC diagnostic push |
| 196 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" |
| 197 | #endif |
| 198 | if (checksumField == "Files") |
| 199 | file->MD5Hash = hash; |
| 200 | #if __GNUC__ >= 4 |
| 201 | #pragma GCC diagnostic pop |
| 202 | #endif |
| 203 | // an error here indicates that we have two different hashes for the same file |
| 204 | if (file->Hashes.push_back(hashString) == false) |
| 205 | return _error->Error("Error parsing checksum in %s of source package %s", checksumField.c_str(), Package().c_str()); |
| 206 | continue; |
| 207 | } |
| 208 | |
| 209 | // we haven't seen this file yet |
| 210 | pkgSrcRecords::File2 F; |
| 211 | F.Path = path; |
| 212 | F.FileSize = strtoull(size.c_str(), NULL, 10); |
| 213 | F.Hashes.push_back(hashString); |
| 214 | |
| 215 | #if __GNUC__ >= 4 |
| 216 | // set for compatibility only, so warn users not us |
| 217 | #pragma GCC diagnostic push |
| 218 | #pragma GCC diagnostic ignored "-Wdeprecated-declarations" |
| 219 | #endif |
| 220 | F.Size = F.FileSize; |
| 221 | if (checksumField == "Files") |
| 222 | F.MD5Hash = hash; |
| 223 | #if __GNUC__ >= 4 |
| 224 | #pragma GCC diagnostic pop |
| 225 | #endif |
| 226 | |
| 227 | // Try to guess what sort of file it is we are getting. |
| 228 | string::size_type Pos = F.Path.length()-1; |
| 229 | while (1) |
| 230 | { |
| 231 | string::size_type Tmp = F.Path.rfind('.',Pos); |
| 232 | if (Tmp == string::npos) |
| 233 | break; |
| 234 | if (F.Type == "tar") { |
| 235 | // source v3 has extension 'debian.tar.*' instead of 'diff.*' |
| 236 | if (string(F.Path, Tmp+1, Pos-Tmp) == "debian") |
| 237 | F.Type = "diff"; |
| 238 | break; |
| 239 | } |
| 240 | F.Type = string(F.Path,Tmp+1,Pos-Tmp); |
| 241 | |
| 242 | if (std::find(compExts.begin(), compExts.end(), std::string(".").append(F.Type)) != compExts.end() || |
| 243 | F.Type == "tar") |
| 244 | { |
| 245 | Pos = Tmp-1; |
| 246 | continue; |
| 247 | } |
| 248 | |
| 249 | break; |
| 250 | } |
| 251 | List.push_back(F); |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | return true; |
| 256 | } |
| 257 | /*}}}*/ |
| 258 | // SrcRecordParser::~SrcRecordParser - Destructor /*{{{*/ |
| 259 | // --------------------------------------------------------------------- |
| 260 | /* */ |
| 261 | debSrcRecordParser::~debSrcRecordParser() |
| 262 | { |
| 263 | // was allocated via strndup() |
| 264 | free(Buffer); |
| 265 | } |
| 266 | /*}}}*/ |