| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: writer.cc,v 1.14 2004/03/24 01:40:43 mdz Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Writer |
| 7 | |
| 8 | The file writer classes. These write various types of output, sources, |
| 9 | packages and contents. |
| 10 | |
| 11 | ##################################################################### */ |
| 12 | /*}}}*/ |
| 13 | // Include Files /*{{{*/ |
| 14 | #include "writer.h" |
| 15 | |
| 16 | #include <apti18n.h> |
| 17 | #include <apt-pkg/strutl.h> |
| 18 | #include <apt-pkg/error.h> |
| 19 | #include <apt-pkg/configuration.h> |
| 20 | #include <apt-pkg/md5.h> |
| 21 | #include <apt-pkg/sha1.h> |
| 22 | #include <apt-pkg/sha256.h> |
| 23 | #include <apt-pkg/deblistparser.h> |
| 24 | |
| 25 | #include <sys/types.h> |
| 26 | #include <unistd.h> |
| 27 | #include <ctime> |
| 28 | #include <ftw.h> |
| 29 | #include <fnmatch.h> |
| 30 | #include <iostream> |
| 31 | #include <memory> |
| 32 | |
| 33 | #include "cachedb.h" |
| 34 | #include "apt-ftparchive.h" |
| 35 | #include "multicompress.h" |
| 36 | /*}}}*/ |
| 37 | using namespace std; |
| 38 | FTWScanner *FTWScanner::Owner; |
| 39 | |
| 40 | // SetTFRewriteData - Helper for setting rewrite lists /*{{{*/ |
| 41 | // --------------------------------------------------------------------- |
| 42 | /* */ |
| 43 | inline void SetTFRewriteData(struct TFRewriteData &tfrd, |
| 44 | const char *tag, |
| 45 | const char *rewrite, |
| 46 | const char *newtag = 0) |
| 47 | { |
| 48 | tfrd.Tag = tag; |
| 49 | tfrd.Rewrite = rewrite; |
| 50 | tfrd.NewTag = newtag; |
| 51 | } |
| 52 | /*}}}*/ |
| 53 | |
| 54 | // FTWScanner::FTWScanner - Constructor /*{{{*/ |
| 55 | // --------------------------------------------------------------------- |
| 56 | /* */ |
| 57 | FTWScanner::FTWScanner() |
| 58 | { |
| 59 | ErrorPrinted = false; |
| 60 | NoLinkAct = !_config->FindB("APT::FTPArchive::DeLinkAct",true); |
| 61 | RealPath = 0; |
| 62 | long PMax = pathconf(".",_PC_PATH_MAX); |
| 63 | if (PMax > 0) |
| 64 | RealPath = new char[PMax]; |
| 65 | } |
| 66 | /*}}}*/ |
| 67 | // FTWScanner::Scanner - FTW Scanner /*{{{*/ |
| 68 | // --------------------------------------------------------------------- |
| 69 | /* This is the FTW scanner, it processes each directory element in the |
| 70 | directory tree. */ |
| 71 | int FTWScanner::ScannerFTW(const char *File,const struct stat *sb,int Flag) |
| 72 | { |
| 73 | if (Flag == FTW_DNR) |
| 74 | { |
| 75 | Owner->NewLine(1); |
| 76 | ioprintf(c1out, _("W: Unable to read directory %s\n"), File); |
| 77 | } |
| 78 | if (Flag == FTW_NS) |
| 79 | { |
| 80 | Owner->NewLine(1); |
| 81 | ioprintf(c1out, _("W: Unable to stat %s\n"), File); |
| 82 | } |
| 83 | if (Flag != FTW_F) |
| 84 | return 0; |
| 85 | |
| 86 | return ScannerFile(File, true); |
| 87 | } |
| 88 | /*}}}*/ |
| 89 | // FTWScanner::ScannerFile - File Scanner /*{{{*/ |
| 90 | // --------------------------------------------------------------------- |
| 91 | /* */ |
| 92 | int FTWScanner::ScannerFile(const char *File, bool ReadLink) |
| 93 | { |
| 94 | const char *LastComponent = strrchr(File, '/'); |
| 95 | if (LastComponent == NULL) |
| 96 | LastComponent = File; |
| 97 | else |
| 98 | LastComponent++; |
| 99 | |
| 100 | vector<string>::iterator I; |
| 101 | for(I = Owner->Patterns.begin(); I != Owner->Patterns.end(); ++I) |
| 102 | { |
| 103 | if (fnmatch((*I).c_str(), LastComponent, 0) == 0) |
| 104 | break; |
| 105 | } |
| 106 | if (I == Owner->Patterns.end()) |
| 107 | return 0; |
| 108 | |
| 109 | /* Process it. If the file is a link then resolve it into an absolute |
| 110 | name.. This works best if the directory components the scanner are |
| 111 | given are not links themselves. */ |
| 112 | char Jnk[2]; |
| 113 | Owner->OriginalPath = File; |
| 114 | if (ReadLink && Owner->RealPath != 0 && |
| 115 | readlink(File,Jnk,sizeof(Jnk)) != -1 && |
| 116 | realpath(File,Owner->RealPath) != 0) |
| 117 | Owner->DoPackage(Owner->RealPath); |
| 118 | else |
| 119 | Owner->DoPackage(File); |
| 120 | |
| 121 | if (_error->empty() == false) |
| 122 | { |
| 123 | // Print any errors or warnings found |
| 124 | string Err; |
| 125 | bool SeenPath = false; |
| 126 | while (_error->empty() == false) |
| 127 | { |
| 128 | Owner->NewLine(1); |
| 129 | |
| 130 | bool Type = _error->PopMessage(Err); |
| 131 | if (Type == true) |
| 132 | cerr << _("E: ") << Err << endl; |
| 133 | else |
| 134 | cerr << _("W: ") << Err << endl; |
| 135 | |
| 136 | if (Err.find(File) != string::npos) |
| 137 | SeenPath = true; |
| 138 | } |
| 139 | |
| 140 | if (SeenPath == false) |
| 141 | cerr << _("E: Errors apply to file ") << "'" << File << "'" << endl; |
| 142 | return 0; |
| 143 | } |
| 144 | |
| 145 | return 0; |
| 146 | } |
| 147 | /*}}}*/ |
| 148 | // FTWScanner::RecursiveScan - Just scan a directory tree /*{{{*/ |
| 149 | // --------------------------------------------------------------------- |
| 150 | /* */ |
| 151 | bool FTWScanner::RecursiveScan(string Dir) |
| 152 | { |
| 153 | /* If noprefix is set then jam the scan root in, so we don't generate |
| 154 | link followed paths out of control */ |
| 155 | if (InternalPrefix.empty() == true) |
| 156 | { |
| 157 | if (realpath(Dir.c_str(),RealPath) == 0) |
| 158 | return _error->Errno("realpath",_("Failed to resolve %s"),Dir.c_str()); |
| 159 | InternalPrefix = RealPath; |
| 160 | } |
| 161 | |
| 162 | // Do recursive directory searching |
| 163 | Owner = this; |
| 164 | int Res = ftw(Dir.c_str(),ScannerFTW,30); |
| 165 | |
| 166 | // Error treewalking? |
| 167 | if (Res != 0) |
| 168 | { |
| 169 | if (_error->PendingError() == false) |
| 170 | _error->Errno("ftw",_("Tree walking failed")); |
| 171 | return false; |
| 172 | } |
| 173 | |
| 174 | return true; |
| 175 | } |
| 176 | /*}}}*/ |
| 177 | // FTWScanner::LoadFileList - Load the file list from a file /*{{{*/ |
| 178 | // --------------------------------------------------------------------- |
| 179 | /* This is an alternative to using FTW to locate files, it reads the list |
| 180 | of files from another file. */ |
| 181 | bool FTWScanner::LoadFileList(string Dir,string File) |
| 182 | { |
| 183 | /* If noprefix is set then jam the scan root in, so we don't generate |
| 184 | link followed paths out of control */ |
| 185 | if (InternalPrefix.empty() == true) |
| 186 | { |
| 187 | if (realpath(Dir.c_str(),RealPath) == 0) |
| 188 | return _error->Errno("realpath",_("Failed to resolve %s"),Dir.c_str()); |
| 189 | InternalPrefix = RealPath; |
| 190 | } |
| 191 | |
| 192 | Owner = this; |
| 193 | FILE *List = fopen(File.c_str(),"r"); |
| 194 | if (List == 0) |
| 195 | return _error->Errno("fopen",_("Failed to open %s"),File.c_str()); |
| 196 | |
| 197 | /* We are a tad tricky here.. We prefix the buffer with the directory |
| 198 | name, that way if we need a full path with just use line.. Sneaky and |
| 199 | fully evil. */ |
| 200 | char Line[1000]; |
| 201 | char *FileStart; |
| 202 | if (Dir.empty() == true || Dir.end()[-1] != '/') |
| 203 | FileStart = Line + snprintf(Line,sizeof(Line),"%s/",Dir.c_str()); |
| 204 | else |
| 205 | FileStart = Line + snprintf(Line,sizeof(Line),"%s",Dir.c_str()); |
| 206 | while (fgets(FileStart,sizeof(Line) - (FileStart - Line),List) != 0) |
| 207 | { |
| 208 | char *FileName = _strstrip(FileStart); |
| 209 | if (FileName[0] == 0) |
| 210 | continue; |
| 211 | |
| 212 | if (FileName[0] != '/') |
| 213 | { |
| 214 | if (FileName != FileStart) |
| 215 | memmove(FileStart,FileName,strlen(FileStart)); |
| 216 | FileName = Line; |
| 217 | } |
| 218 | |
| 219 | #if 0 |
| 220 | struct stat St; |
| 221 | int Flag = FTW_F; |
| 222 | if (stat(FileName,&St) != 0) |
| 223 | Flag = FTW_NS; |
| 224 | #endif |
| 225 | |
| 226 | if (ScannerFile(FileName, false) != 0) |
| 227 | break; |
| 228 | } |
| 229 | |
| 230 | fclose(List); |
| 231 | return true; |
| 232 | } |
| 233 | /*}}}*/ |
| 234 | // FTWScanner::Delink - Delink symlinks /*{{{*/ |
| 235 | // --------------------------------------------------------------------- |
| 236 | /* */ |
| 237 | bool FTWScanner::Delink(string &FileName,const char *OriginalPath, |
| 238 | unsigned long &DeLinkBytes, |
| 239 | off_t FileSize) |
| 240 | { |
| 241 | // See if this isn't an internaly prefix'd file name. |
| 242 | if (InternalPrefix.empty() == false && |
| 243 | InternalPrefix.length() < FileName.length() && |
| 244 | stringcmp(FileName.begin(),FileName.begin() + InternalPrefix.length(), |
| 245 | InternalPrefix.begin(),InternalPrefix.end()) != 0) |
| 246 | { |
| 247 | if (DeLinkLimit != 0 && DeLinkBytes/1024 < DeLinkLimit) |
| 248 | { |
| 249 | // Tidy up the display |
| 250 | if (DeLinkBytes == 0) |
| 251 | cout << endl; |
| 252 | |
| 253 | NewLine(1); |
| 254 | ioprintf(c1out, _(" DeLink %s [%s]\n"), (OriginalPath + InternalPrefix.length()), |
| 255 | SizeToStr(FileSize).c_str()); |
| 256 | c1out << flush; |
| 257 | |
| 258 | if (NoLinkAct == false) |
| 259 | { |
| 260 | char OldLink[400]; |
| 261 | if (readlink(OriginalPath,OldLink,sizeof(OldLink)) == -1) |
| 262 | _error->Errno("readlink",_("Failed to readlink %s"),OriginalPath); |
| 263 | else |
| 264 | { |
| 265 | if (unlink(OriginalPath) != 0) |
| 266 | _error->Errno("unlink",_("Failed to unlink %s"),OriginalPath); |
| 267 | else |
| 268 | { |
| 269 | if (link(FileName.c_str(),OriginalPath) != 0) |
| 270 | { |
| 271 | // Panic! Restore the symlink |
| 272 | symlink(OldLink,OriginalPath); |
| 273 | return _error->Errno("link",_("*** Failed to link %s to %s"), |
| 274 | FileName.c_str(), |
| 275 | OriginalPath); |
| 276 | } |
| 277 | } |
| 278 | } |
| 279 | } |
| 280 | |
| 281 | DeLinkBytes += FileSize; |
| 282 | if (DeLinkBytes/1024 >= DeLinkLimit) |
| 283 | ioprintf(c1out, _(" DeLink limit of %sB hit.\n"), SizeToStr(DeLinkBytes).c_str()); |
| 284 | } |
| 285 | |
| 286 | FileName = OriginalPath; |
| 287 | } |
| 288 | |
| 289 | return true; |
| 290 | } |
| 291 | /*}}}*/ |
| 292 | |
| 293 | // PackagesWriter::PackagesWriter - Constructor /*{{{*/ |
| 294 | // --------------------------------------------------------------------- |
| 295 | /* */ |
| 296 | PackagesWriter::PackagesWriter(string DB,string Overrides,string ExtOverrides, |
| 297 | string aArch) : |
| 298 | Db(DB),Stats(Db.Stats), Arch(aArch) |
| 299 | { |
| 300 | Output = stdout; |
| 301 | SetExts(".deb .udeb .foo .bar .baz"); |
| 302 | AddPattern("*.deb"); |
| 303 | DeLinkLimit = 0; |
| 304 | |
| 305 | // Process the command line options |
| 306 | DoMD5 = _config->FindB("APT::FTPArchive::MD5",true); |
| 307 | DoSHA1 = _config->FindB("APT::FTPArchive::SHA1",true); |
| 308 | DoSHA256 = _config->FindB("APT::FTPArchive::SHA256",true); |
| 309 | DoContents = _config->FindB("APT::FTPArchive::Contents",true); |
| 310 | NoOverride = _config->FindB("APT::FTPArchive::NoOverrideMsg",false); |
| 311 | LongDescription = _config->FindB("APT::FTPArchive::LongDescription",true); |
| 312 | |
| 313 | if (Db.Loaded() == false) |
| 314 | DoContents = false; |
| 315 | |
| 316 | // Read the override file |
| 317 | if (Overrides.empty() == false && Over.ReadOverride(Overrides) == false) |
| 318 | return; |
| 319 | else |
| 320 | NoOverride = true; |
| 321 | |
| 322 | if (ExtOverrides.empty() == false) |
| 323 | Over.ReadExtraOverride(ExtOverrides); |
| 324 | |
| 325 | _error->DumpErrors(); |
| 326 | } |
| 327 | /*}}}*/ |
| 328 | // FTWScanner::SetExts - Set extensions to support /*{{{*/ |
| 329 | // --------------------------------------------------------------------- |
| 330 | /* */ |
| 331 | bool FTWScanner::SetExts(string Vals) |
| 332 | { |
| 333 | ClearPatterns(); |
| 334 | string::size_type Start = 0; |
| 335 | while (Start <= Vals.length()-1) |
| 336 | { |
| 337 | string::size_type Space = Vals.find(' ',Start); |
| 338 | string::size_type Length; |
| 339 | if (Space == string::npos) |
| 340 | { |
| 341 | Length = Vals.length()-Start; |
| 342 | } |
| 343 | else |
| 344 | { |
| 345 | Length = Space-Start; |
| 346 | } |
| 347 | AddPattern(string("*") + Vals.substr(Start, Length)); |
| 348 | Start += Length + 1; |
| 349 | } |
| 350 | |
| 351 | return true; |
| 352 | } |
| 353 | |
| 354 | /*}}}*/ |
| 355 | // PackagesWriter::DoPackage - Process a single package /*{{{*/ |
| 356 | // --------------------------------------------------------------------- |
| 357 | /* This method takes a package and gets its control information and |
| 358 | MD5, SHA1 and SHA256 then writes out a control record with the proper fields |
| 359 | rewritten and the path/size/hash appended. */ |
| 360 | bool PackagesWriter::DoPackage(string FileName) |
| 361 | { |
| 362 | // Pull all the data we need form the DB |
| 363 | if (Db.GetFileInfo(FileName, true, DoContents, true, DoMD5, DoSHA1, DoSHA256) |
| 364 | == false) |
| 365 | { |
| 366 | return false; |
| 367 | } |
| 368 | |
| 369 | off_t FileSize = Db.GetFileSize(); |
| 370 | if (Delink(FileName,OriginalPath,Stats.DeLinkBytes,FileSize) == false) |
| 371 | return false; |
| 372 | |
| 373 | // Lookup the overide information |
| 374 | pkgTagSection &Tags = Db.Control.Section; |
| 375 | string Package = Tags.FindS("Package"); |
| 376 | string Architecture; |
| 377 | // if we generate a Packages file for a given arch, we use it to |
| 378 | // look for overrides. if we run in "simple" mode without the |
| 379 | // "Architecures" variable in the config we use the architecure value |
| 380 | // from the deb file |
| 381 | if(Arch != "") |
| 382 | Architecture = Arch; |
| 383 | else |
| 384 | Architecture = Tags.FindS("Architecture"); |
| 385 | auto_ptr<Override::Item> OverItem(Over.GetItem(Package,Architecture)); |
| 386 | |
| 387 | if (Package.empty() == true) |
| 388 | return _error->Error(_("Archive had no package field")); |
| 389 | |
| 390 | // If we need to do any rewriting of the header do it now.. |
| 391 | if (OverItem.get() == 0) |
| 392 | { |
| 393 | if (NoOverride == false) |
| 394 | { |
| 395 | NewLine(1); |
| 396 | ioprintf(c1out, _(" %s has no override entry\n"), Package.c_str()); |
| 397 | } |
| 398 | |
| 399 | OverItem = auto_ptr<Override::Item>(new Override::Item); |
| 400 | OverItem->FieldOverride["Section"] = Tags.FindS("Section"); |
| 401 | OverItem->Priority = Tags.FindS("Priority"); |
| 402 | } |
| 403 | |
| 404 | char Size[40]; |
| 405 | sprintf(Size,"%lu", (unsigned long) FileSize); |
| 406 | |
| 407 | // Strip the DirStrip prefix from the FileName and add the PathPrefix |
| 408 | string NewFileName; |
| 409 | if (DirStrip.empty() == false && |
| 410 | FileName.length() > DirStrip.length() && |
| 411 | stringcmp(FileName.begin(),FileName.begin() + DirStrip.length(), |
| 412 | DirStrip.begin(),DirStrip.end()) == 0) |
| 413 | NewFileName = string(FileName.begin() + DirStrip.length(),FileName.end()); |
| 414 | else |
| 415 | NewFileName = FileName; |
| 416 | if (PathPrefix.empty() == false) |
| 417 | NewFileName = flCombine(PathPrefix,NewFileName); |
| 418 | |
| 419 | /* Configuration says we don't want to include the long Description |
| 420 | in the package file - instead we want to ship a separated file */ |
| 421 | string desc; |
| 422 | if (LongDescription == false) { |
| 423 | desc = Tags.FindS("Description").append("\n"); |
| 424 | OverItem->FieldOverride["Description"] = desc.substr(0, desc.find('\n')).c_str(); |
| 425 | } |
| 426 | |
| 427 | // This lists all the changes to the fields we are going to make. |
| 428 | // (7 hardcoded + maintainer + suggests + end marker) |
| 429 | TFRewriteData Changes[6+2+OverItem->FieldOverride.size()+1+1]; |
| 430 | |
| 431 | unsigned int End = 0; |
| 432 | SetTFRewriteData(Changes[End++], "Size", Size); |
| 433 | SetTFRewriteData(Changes[End++], "MD5sum", Db.MD5Res.c_str()); |
| 434 | SetTFRewriteData(Changes[End++], "SHA1", Db.SHA1Res.c_str()); |
| 435 | SetTFRewriteData(Changes[End++], "SHA256", Db.SHA256Res.c_str()); |
| 436 | SetTFRewriteData(Changes[End++], "Filename", NewFileName.c_str()); |
| 437 | SetTFRewriteData(Changes[End++], "Priority", OverItem->Priority.c_str()); |
| 438 | SetTFRewriteData(Changes[End++], "Status", 0); |
| 439 | SetTFRewriteData(Changes[End++], "Optional", 0); |
| 440 | |
| 441 | string DescriptionMd5; |
| 442 | if (LongDescription == false) { |
| 443 | MD5Summation descmd5; |
| 444 | descmd5.Add(desc.c_str()); |
| 445 | DescriptionMd5 = descmd5.Result().Value(); |
| 446 | SetTFRewriteData(Changes[End++], "Description-md5", DescriptionMd5.c_str()); |
| 447 | } |
| 448 | |
| 449 | // Rewrite the maintainer field if necessary |
| 450 | bool MaintFailed; |
| 451 | string NewMaint = OverItem->SwapMaint(Tags.FindS("Maintainer"),MaintFailed); |
| 452 | if (MaintFailed == true) |
| 453 | { |
| 454 | if (NoOverride == false) |
| 455 | { |
| 456 | NewLine(1); |
| 457 | ioprintf(c1out, _(" %s maintainer is %s not %s\n"), |
| 458 | Package.c_str(), Tags.FindS("Maintainer").c_str(), OverItem->OldMaint.c_str()); |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | if (NewMaint.empty() == false) |
| 463 | SetTFRewriteData(Changes[End++], "Maintainer", NewMaint.c_str()); |
| 464 | |
| 465 | /* Get rid of the Optional tag. This is an ugly, ugly, ugly hack that |
| 466 | dpkg-scanpackages does.. Well sort of. dpkg-scanpackages just does renaming |
| 467 | but dpkg does this append bit. So we do the append bit, at least that way the |
| 468 | status file and package file will remain similar. There are other transforms |
| 469 | but optional is the only legacy one still in use for some lazy reason. */ |
| 470 | string OptionalStr = Tags.FindS("Optional"); |
| 471 | if (OptionalStr.empty() == false) |
| 472 | { |
| 473 | if (Tags.FindS("Suggests").empty() == false) |
| 474 | OptionalStr = Tags.FindS("Suggests") + ", " + OptionalStr; |
| 475 | SetTFRewriteData(Changes[End++], "Suggests", OptionalStr.c_str()); |
| 476 | } |
| 477 | |
| 478 | for (map<string,string>::iterator I = OverItem->FieldOverride.begin(); |
| 479 | I != OverItem->FieldOverride.end(); I++) |
| 480 | SetTFRewriteData(Changes[End++],I->first.c_str(),I->second.c_str()); |
| 481 | |
| 482 | SetTFRewriteData(Changes[End++], 0, 0); |
| 483 | |
| 484 | // Rewrite and store the fields. |
| 485 | if (TFRewrite(Output,Tags,TFRewritePackageOrder,Changes) == false) |
| 486 | return false; |
| 487 | fprintf(Output,"\n"); |
| 488 | |
| 489 | return Db.Finish(); |
| 490 | } |
| 491 | /*}}}*/ |
| 492 | |
| 493 | // SourcesWriter::SourcesWriter - Constructor /*{{{*/ |
| 494 | // --------------------------------------------------------------------- |
| 495 | /* */ |
| 496 | SourcesWriter::SourcesWriter(string BOverrides,string SOverrides, |
| 497 | string ExtOverrides) |
| 498 | { |
| 499 | Output = stdout; |
| 500 | AddPattern("*.dsc"); |
| 501 | DeLinkLimit = 0; |
| 502 | Buffer = 0; |
| 503 | BufSize = 0; |
| 504 | |
| 505 | // Process the command line options |
| 506 | NoOverride = _config->FindB("APT::FTPArchive::NoOverrideMsg",false); |
| 507 | |
| 508 | // Read the override file |
| 509 | if (BOverrides.empty() == false && BOver.ReadOverride(BOverrides) == false) |
| 510 | return; |
| 511 | else |
| 512 | NoOverride = true; |
| 513 | |
| 514 | // WTF?? The logic above: if we can't read binary overrides, don't even try |
| 515 | // reading source overrides. if we can read binary overrides, then say there |
| 516 | // are no overrides. THIS MAKES NO SENSE! -- ajt@d.o, 2006/02/28 |
| 517 | |
| 518 | if (ExtOverrides.empty() == false) |
| 519 | SOver.ReadExtraOverride(ExtOverrides); |
| 520 | |
| 521 | if (SOverrides.empty() == false && FileExists(SOverrides) == true) |
| 522 | SOver.ReadOverride(SOverrides,true); |
| 523 | } |
| 524 | /*}}}*/ |
| 525 | // SourcesWriter::DoPackage - Process a single package /*{{{*/ |
| 526 | // --------------------------------------------------------------------- |
| 527 | /* */ |
| 528 | bool SourcesWriter::DoPackage(string FileName) |
| 529 | { |
| 530 | // Open the archive |
| 531 | FileFd F(FileName,FileFd::ReadOnly); |
| 532 | if (_error->PendingError() == true) |
| 533 | return false; |
| 534 | |
| 535 | // Stat the file for later |
| 536 | struct stat St; |
| 537 | if (fstat(F.Fd(),&St) != 0) |
| 538 | return _error->Errno("fstat","Failed to stat %s",FileName.c_str()); |
| 539 | |
| 540 | if (St.st_size > 128*1024) |
| 541 | return _error->Error("DSC file '%s' is too large!",FileName.c_str()); |
| 542 | |
| 543 | if (BufSize < (unsigned)St.st_size+1) |
| 544 | { |
| 545 | BufSize = St.st_size+1; |
| 546 | Buffer = (char *)realloc(Buffer,St.st_size+1); |
| 547 | } |
| 548 | |
| 549 | if (F.Read(Buffer,St.st_size) == false) |
| 550 | return false; |
| 551 | |
| 552 | // Hash the file |
| 553 | char *Start = Buffer; |
| 554 | char *BlkEnd = Buffer + St.st_size; |
| 555 | MD5Summation MD5; |
| 556 | MD5.Add((unsigned char *)Start,BlkEnd - Start); |
| 557 | |
| 558 | // Add an extra \n to the end, just in case |
| 559 | *BlkEnd++ = '\n'; |
| 560 | |
| 561 | /* Remove the PGP trailer. Some .dsc's have this without a blank line |
| 562 | before */ |
| 563 | const char *Key = "-----BEGIN PGP SIGNATURE-----"; |
| 564 | for (char *MsgEnd = Start; MsgEnd < BlkEnd - strlen(Key) -1; MsgEnd++) |
| 565 | { |
| 566 | if (*MsgEnd == '\n' && strncmp(MsgEnd+1,Key,strlen(Key)) == 0) |
| 567 | { |
| 568 | MsgEnd[1] = '\n'; |
| 569 | break; |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | /* Read records until we locate the Source record. This neatly skips the |
| 574 | GPG header (which is RFC822 formed) without any trouble. */ |
| 575 | pkgTagSection Tags; |
| 576 | do |
| 577 | { |
| 578 | unsigned Pos; |
| 579 | if (Tags.Scan(Start,BlkEnd - Start) == false) |
| 580 | return _error->Error("Could not find a record in the DSC '%s'",FileName.c_str()); |
| 581 | if (Tags.Find("Source",Pos) == true) |
| 582 | break; |
| 583 | Start += Tags.size(); |
| 584 | } |
| 585 | while (1); |
| 586 | Tags.Trim(); |
| 587 | |
| 588 | // Lookup the overide information, finding first the best priority. |
| 589 | string BestPrio; |
| 590 | string Bins = Tags.FindS("Binary"); |
| 591 | char Buffer[Bins.length() + 1]; |
| 592 | auto_ptr<Override::Item> OverItem(0); |
| 593 | if (Bins.empty() == false) |
| 594 | { |
| 595 | strcpy(Buffer,Bins.c_str()); |
| 596 | |
| 597 | // Ignore too-long errors. |
| 598 | char *BinList[400]; |
| 599 | TokSplitString(',',Buffer,BinList,sizeof(BinList)/sizeof(BinList[0])); |
| 600 | |
| 601 | // Look at all the binaries |
| 602 | unsigned char BestPrioV = pkgCache::State::Extra; |
| 603 | for (unsigned I = 0; BinList[I] != 0; I++) |
| 604 | { |
| 605 | auto_ptr<Override::Item> Itm(BOver.GetItem(BinList[I])); |
| 606 | if (Itm.get() == 0) |
| 607 | continue; |
| 608 | |
| 609 | unsigned char NewPrioV = debListParser::GetPrio(Itm->Priority); |
| 610 | if (NewPrioV < BestPrioV || BestPrio.empty() == true) |
| 611 | { |
| 612 | BestPrioV = NewPrioV; |
| 613 | BestPrio = Itm->Priority; |
| 614 | } |
| 615 | |
| 616 | if (OverItem.get() == 0) |
| 617 | OverItem = Itm; |
| 618 | } |
| 619 | } |
| 620 | |
| 621 | // If we need to do any rewriting of the header do it now.. |
| 622 | if (OverItem.get() == 0) |
| 623 | { |
| 624 | if (NoOverride == false) |
| 625 | { |
| 626 | NewLine(1); |
| 627 | ioprintf(c1out, _(" %s has no override entry\n"), Tags.FindS("Source").c_str()); |
| 628 | } |
| 629 | |
| 630 | OverItem = auto_ptr<Override::Item>(new Override::Item); |
| 631 | } |
| 632 | |
| 633 | auto_ptr<Override::Item> SOverItem(SOver.GetItem(Tags.FindS("Source"))); |
| 634 | // const auto_ptr<Override::Item> autoSOverItem(SOverItem); |
| 635 | if (SOverItem.get() == 0) |
| 636 | { |
| 637 | ioprintf(c1out, _(" %s has no source override entry\n"), Tags.FindS("Source").c_str()); |
| 638 | SOverItem = auto_ptr<Override::Item>(BOver.GetItem(Tags.FindS("Source"))); |
| 639 | if (SOverItem.get() == 0) |
| 640 | { |
| 641 | ioprintf(c1out, _(" %s has no binary override entry either\n"), Tags.FindS("Source").c_str()); |
| 642 | SOverItem = auto_ptr<Override::Item>(new Override::Item); |
| 643 | *SOverItem = *OverItem; |
| 644 | } |
| 645 | } |
| 646 | |
| 647 | // Add the dsc to the files hash list |
| 648 | char Files[1000]; |
| 649 | snprintf(Files,sizeof(Files),"\n %s %lu %s\n %s", |
| 650 | string(MD5.Result()).c_str(),St.st_size, |
| 651 | flNotDir(FileName).c_str(), |
| 652 | Tags.FindS("Files").c_str()); |
| 653 | |
| 654 | // Strip the DirStrip prefix from the FileName and add the PathPrefix |
| 655 | string NewFileName; |
| 656 | if (DirStrip.empty() == false && |
| 657 | FileName.length() > DirStrip.length() && |
| 658 | stringcmp(DirStrip,OriginalPath,OriginalPath + DirStrip.length()) == 0) |
| 659 | NewFileName = string(OriginalPath + DirStrip.length()); |
| 660 | else |
| 661 | NewFileName = OriginalPath; |
| 662 | if (PathPrefix.empty() == false) |
| 663 | NewFileName = flCombine(PathPrefix,NewFileName); |
| 664 | |
| 665 | string Directory = flNotFile(OriginalPath); |
| 666 | string Package = Tags.FindS("Source"); |
| 667 | |
| 668 | // Perform the delinking operation over all of the files |
| 669 | string ParseJnk; |
| 670 | const char *C = Files; |
| 671 | for (;isspace(*C); C++); |
| 672 | while (*C != 0) |
| 673 | { |
| 674 | // Parse each of the elements |
| 675 | if (ParseQuoteWord(C,ParseJnk) == false || |
| 676 | ParseQuoteWord(C,ParseJnk) == false || |
| 677 | ParseQuoteWord(C,ParseJnk) == false) |
| 678 | return _error->Error("Error parsing file record"); |
| 679 | |
| 680 | char Jnk[2]; |
| 681 | string OriginalPath = Directory + ParseJnk; |
| 682 | if (RealPath != 0 && readlink(OriginalPath.c_str(),Jnk,sizeof(Jnk)) != -1 && |
| 683 | realpath(OriginalPath.c_str(),RealPath) != 0) |
| 684 | { |
| 685 | string RP = RealPath; |
| 686 | if (Delink(RP,OriginalPath.c_str(),Stats.DeLinkBytes,St.st_size) == false) |
| 687 | return false; |
| 688 | } |
| 689 | } |
| 690 | |
| 691 | Directory = flNotFile(NewFileName); |
| 692 | if (Directory.length() > 2) |
| 693 | Directory.erase(Directory.end()-1); |
| 694 | |
| 695 | // This lists all the changes to the fields we are going to make. |
| 696 | // (5 hardcoded + maintainer + end marker) |
| 697 | TFRewriteData Changes[5+1+SOverItem->FieldOverride.size()+1]; |
| 698 | |
| 699 | unsigned int End = 0; |
| 700 | SetTFRewriteData(Changes[End++],"Source",Package.c_str(),"Package"); |
| 701 | SetTFRewriteData(Changes[End++],"Files",Files); |
| 702 | if (Directory != "./") |
| 703 | SetTFRewriteData(Changes[End++],"Directory",Directory.c_str()); |
| 704 | SetTFRewriteData(Changes[End++],"Priority",BestPrio.c_str()); |
| 705 | SetTFRewriteData(Changes[End++],"Status",0); |
| 706 | |
| 707 | // Rewrite the maintainer field if necessary |
| 708 | bool MaintFailed; |
| 709 | string NewMaint = OverItem->SwapMaint(Tags.FindS("Maintainer"),MaintFailed); |
| 710 | if (MaintFailed == true) |
| 711 | { |
| 712 | if (NoOverride == false) |
| 713 | { |
| 714 | NewLine(1); |
| 715 | ioprintf(c1out, _(" %s maintainer is %s not %s\n"), Package.c_str(), |
| 716 | Tags.FindS("Maintainer").c_str(), OverItem->OldMaint.c_str()); |
| 717 | } |
| 718 | } |
| 719 | if (NewMaint.empty() == false) |
| 720 | SetTFRewriteData(Changes[End++], "Maintainer", NewMaint.c_str()); |
| 721 | |
| 722 | for (map<string,string>::iterator I = SOverItem->FieldOverride.begin(); |
| 723 | I != SOverItem->FieldOverride.end(); I++) |
| 724 | SetTFRewriteData(Changes[End++],I->first.c_str(),I->second.c_str()); |
| 725 | |
| 726 | SetTFRewriteData(Changes[End++], 0, 0); |
| 727 | |
| 728 | // Rewrite and store the fields. |
| 729 | if (TFRewrite(Output,Tags,TFRewriteSourceOrder,Changes) == false) |
| 730 | return false; |
| 731 | fprintf(Output,"\n"); |
| 732 | |
| 733 | Stats.Packages++; |
| 734 | |
| 735 | return true; |
| 736 | } |
| 737 | /*}}}*/ |
| 738 | |
| 739 | // ContentsWriter::ContentsWriter - Constructor /*{{{*/ |
| 740 | // --------------------------------------------------------------------- |
| 741 | /* */ |
| 742 | ContentsWriter::ContentsWriter(string DB) : |
| 743 | Db(DB), Stats(Db.Stats) |
| 744 | |
| 745 | { |
| 746 | AddPattern("*.deb"); |
| 747 | Output = stdout; |
| 748 | } |
| 749 | /*}}}*/ |
| 750 | // ContentsWriter::DoPackage - Process a single package /*{{{*/ |
| 751 | // --------------------------------------------------------------------- |
| 752 | /* If Package is the empty string the control record will be parsed to |
| 753 | determine what the package name is. */ |
| 754 | bool ContentsWriter::DoPackage(string FileName,string Package) |
| 755 | { |
| 756 | if (!Db.GetFileInfo(FileName, Package.empty(), true, false, false, false, false)) |
| 757 | { |
| 758 | return false; |
| 759 | } |
| 760 | |
| 761 | // Parse the package name |
| 762 | if (Package.empty() == true) |
| 763 | { |
| 764 | Package = Db.Control.Section.FindS("Package"); |
| 765 | } |
| 766 | |
| 767 | Db.Contents.Add(Gen,Package); |
| 768 | |
| 769 | return Db.Finish(); |
| 770 | } |
| 771 | /*}}}*/ |
| 772 | // ContentsWriter::ReadFromPkgs - Read from a packages file /*{{{*/ |
| 773 | // --------------------------------------------------------------------- |
| 774 | /* */ |
| 775 | bool ContentsWriter::ReadFromPkgs(string PkgFile,string PkgCompress) |
| 776 | { |
| 777 | MultiCompress Pkgs(PkgFile,PkgCompress,0,false); |
| 778 | if (_error->PendingError() == true) |
| 779 | return false; |
| 780 | |
| 781 | // Open the package file |
| 782 | int CompFd = -1; |
| 783 | pid_t Proc = -1; |
| 784 | if (Pkgs.OpenOld(CompFd,Proc) == false) |
| 785 | return false; |
| 786 | |
| 787 | // No auto-close FD |
| 788 | FileFd Fd(CompFd,false); |
| 789 | pkgTagFile Tags(&Fd); |
| 790 | if (_error->PendingError() == true) |
| 791 | { |
| 792 | Pkgs.CloseOld(CompFd,Proc); |
| 793 | return false; |
| 794 | } |
| 795 | |
| 796 | // Parse. |
| 797 | pkgTagSection Section; |
| 798 | while (Tags.Step(Section) == true) |
| 799 | { |
| 800 | string File = flCombine(Prefix,Section.FindS("FileName")); |
| 801 | string Package = Section.FindS("Section"); |
| 802 | if (Package.empty() == false && Package.end()[-1] != '/') |
| 803 | { |
| 804 | Package += '/'; |
| 805 | Package += Section.FindS("Package"); |
| 806 | } |
| 807 | else |
| 808 | Package += Section.FindS("Package"); |
| 809 | |
| 810 | DoPackage(File,Package); |
| 811 | if (_error->empty() == false) |
| 812 | { |
| 813 | _error->Error("Errors apply to file '%s'",File.c_str()); |
| 814 | _error->DumpErrors(); |
| 815 | } |
| 816 | } |
| 817 | |
| 818 | // Tidy the compressor |
| 819 | if (Pkgs.CloseOld(CompFd,Proc) == false) |
| 820 | return false; |
| 821 | |
| 822 | return true; |
| 823 | } |
| 824 | |
| 825 | /*}}}*/ |
| 826 | |
| 827 | // ReleaseWriter::ReleaseWriter - Constructor /*{{{*/ |
| 828 | // --------------------------------------------------------------------- |
| 829 | /* */ |
| 830 | ReleaseWriter::ReleaseWriter(string DB) |
| 831 | { |
| 832 | AddPattern("Packages"); |
| 833 | AddPattern("Packages.gz"); |
| 834 | AddPattern("Packages.bz2"); |
| 835 | AddPattern("Packages.lzma"); |
| 836 | AddPattern("Sources"); |
| 837 | AddPattern("Sources.gz"); |
| 838 | AddPattern("Sources.bz2"); |
| 839 | AddPattern("Sources.lzma"); |
| 840 | AddPattern("Release"); |
| 841 | AddPattern("md5sum.txt"); |
| 842 | |
| 843 | Output = stdout; |
| 844 | time_t now = time(NULL); |
| 845 | char datestr[128]; |
| 846 | if (strftime(datestr, sizeof(datestr), "%a, %d %b %Y %H:%M:%S UTC", |
| 847 | gmtime(&now)) == 0) |
| 848 | { |
| 849 | datestr[0] = '\0'; |
| 850 | } |
| 851 | |
| 852 | map<string,string> Fields; |
| 853 | Fields["Origin"] = ""; |
| 854 | Fields["Label"] = ""; |
| 855 | Fields["Suite"] = ""; |
| 856 | Fields["Version"] = ""; |
| 857 | Fields["Codename"] = ""; |
| 858 | Fields["Date"] = datestr; |
| 859 | Fields["Architectures"] = ""; |
| 860 | Fields["Components"] = ""; |
| 861 | Fields["Description"] = ""; |
| 862 | |
| 863 | for(map<string,string>::const_iterator I = Fields.begin(); |
| 864 | I != Fields.end(); |
| 865 | ++I) |
| 866 | { |
| 867 | string Config = string("APT::FTPArchive::Release::") + (*I).first; |
| 868 | string Value = _config->Find(Config, (*I).second.c_str()); |
| 869 | if (Value == "") |
| 870 | continue; |
| 871 | |
| 872 | fprintf(Output, "%s: %s\n", (*I).first.c_str(), Value.c_str()); |
| 873 | } |
| 874 | } |
| 875 | /*}}}*/ |
| 876 | // ReleaseWriter::DoPackage - Process a single package /*{{{*/ |
| 877 | // --------------------------------------------------------------------- |
| 878 | bool ReleaseWriter::DoPackage(string FileName) |
| 879 | { |
| 880 | // Strip the DirStrip prefix from the FileName and add the PathPrefix |
| 881 | string NewFileName; |
| 882 | if (DirStrip.empty() == false && |
| 883 | FileName.length() > DirStrip.length() && |
| 884 | stringcmp(FileName.begin(),FileName.begin() + DirStrip.length(), |
| 885 | DirStrip.begin(),DirStrip.end()) == 0) |
| 886 | { |
| 887 | NewFileName = string(FileName.begin() + DirStrip.length(),FileName.end()); |
| 888 | while (NewFileName[0] == '/') |
| 889 | NewFileName = string(NewFileName.begin() + 1,NewFileName.end()); |
| 890 | } |
| 891 | else |
| 892 | NewFileName = FileName; |
| 893 | |
| 894 | if (PathPrefix.empty() == false) |
| 895 | NewFileName = flCombine(PathPrefix,NewFileName); |
| 896 | |
| 897 | FileFd fd(FileName, FileFd::ReadOnly); |
| 898 | |
| 899 | if (!fd.IsOpen()) |
| 900 | { |
| 901 | return false; |
| 902 | } |
| 903 | |
| 904 | CheckSums[NewFileName].size = fd.Size(); |
| 905 | |
| 906 | MD5Summation MD5; |
| 907 | MD5.AddFD(fd.Fd(), fd.Size()); |
| 908 | CheckSums[NewFileName].MD5 = MD5.Result(); |
| 909 | |
| 910 | fd.Seek(0); |
| 911 | SHA1Summation SHA1; |
| 912 | SHA1.AddFD(fd.Fd(), fd.Size()); |
| 913 | CheckSums[NewFileName].SHA1 = SHA1.Result(); |
| 914 | |
| 915 | fd.Seek(0); |
| 916 | SHA256Summation SHA256; |
| 917 | SHA256.AddFD(fd.Fd(), fd.Size()); |
| 918 | CheckSums[NewFileName].SHA256 = SHA256.Result(); |
| 919 | |
| 920 | fd.Close(); |
| 921 | |
| 922 | return true; |
| 923 | } |
| 924 | |
| 925 | /*}}}*/ |
| 926 | // ReleaseWriter::Finish - Output the checksums /*{{{*/ |
| 927 | // --------------------------------------------------------------------- |
| 928 | void ReleaseWriter::Finish() |
| 929 | { |
| 930 | fprintf(Output, "MD5Sum:\n"); |
| 931 | for(map<string,struct CheckSum>::iterator I = CheckSums.begin(); |
| 932 | I != CheckSums.end(); |
| 933 | ++I) |
| 934 | { |
| 935 | fprintf(Output, " %s %16ld %s\n", |
| 936 | (*I).second.MD5.c_str(), |
| 937 | (*I).second.size, |
| 938 | (*I).first.c_str()); |
| 939 | } |
| 940 | |
| 941 | fprintf(Output, "SHA1:\n"); |
| 942 | for(map<string,struct CheckSum>::iterator I = CheckSums.begin(); |
| 943 | I != CheckSums.end(); |
| 944 | ++I) |
| 945 | { |
| 946 | fprintf(Output, " %s %16ld %s\n", |
| 947 | (*I).second.SHA1.c_str(), |
| 948 | (*I).second.size, |
| 949 | (*I).first.c_str()); |
| 950 | } |
| 951 | |
| 952 | fprintf(Output, "SHA256:\n"); |
| 953 | for(map<string,struct CheckSum>::iterator I = CheckSums.begin(); |
| 954 | I != CheckSums.end(); |
| 955 | ++I) |
| 956 | { |
| 957 | fprintf(Output, " %s %16ld %s\n", |
| 958 | (*I).second.SHA256.c_str(), |
| 959 | (*I).second.size, |
| 960 | (*I).first.c_str()); |
| 961 | } |
| 962 | } |
| 963 | |