| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: acquire-item.cc,v 1.46.2.9 2004/01/16 18:51:11 mdz Exp $ |
| 4 | /* ###################################################################### |
| 5 | |
| 6 | Acquire Item - Item to acquire |
| 7 | |
| 8 | Each item can download to exactly one file at a time. This means you |
| 9 | cannot create an item that fetches two uri's to two files at the same |
| 10 | time. The pkgAcqIndex class creates a second class upon instantiation |
| 11 | to fetch the other index files because of this. |
| 12 | |
| 13 | ##################################################################### */ |
| 14 | /*}}}*/ |
| 15 | // Include Files /*{{{*/ |
| 16 | #include <config.h> |
| 17 | |
| 18 | #include <apt-pkg/acquire-item.h> |
| 19 | #include <apt-pkg/configuration.h> |
| 20 | #include <apt-pkg/aptconfiguration.h> |
| 21 | #include <apt-pkg/sourcelist.h> |
| 22 | #include <apt-pkg/error.h> |
| 23 | #include <apt-pkg/strutl.h> |
| 24 | #include <apt-pkg/fileutl.h> |
| 25 | #include <apt-pkg/sha1.h> |
| 26 | #include <apt-pkg/tagfile.h> |
| 27 | #include <apt-pkg/indexrecords.h> |
| 28 | #include <apt-pkg/acquire.h> |
| 29 | #include <apt-pkg/hashes.h> |
| 30 | #include <apt-pkg/indexfile.h> |
| 31 | #include <apt-pkg/pkgcache.h> |
| 32 | #include <apt-pkg/cacheiterators.h> |
| 33 | #include <apt-pkg/pkgrecords.h> |
| 34 | |
| 35 | #include <stddef.h> |
| 36 | #include <stdlib.h> |
| 37 | #include <string.h> |
| 38 | #include <iostream> |
| 39 | #include <vector> |
| 40 | #include <sys/stat.h> |
| 41 | #include <unistd.h> |
| 42 | #include <errno.h> |
| 43 | #include <string> |
| 44 | #include <sstream> |
| 45 | #include <stdio.h> |
| 46 | #include <ctime> |
| 47 | |
| 48 | #include <apti18n.h> |
| 49 | /*}}}*/ |
| 50 | |
| 51 | using namespace std; |
| 52 | |
| 53 | // Acquire::Item::Item - Constructor /*{{{*/ |
| 54 | // --------------------------------------------------------------------- |
| 55 | /* */ |
| 56 | pkgAcquire::Item::Item(pkgAcquire *Owner) : Owner(Owner), FileSize(0), |
| 57 | PartialSize(0), Mode(0), ID(0), Complete(false), |
| 58 | Local(false), QueueCounter(0) |
| 59 | { |
| 60 | Owner->Add(this); |
| 61 | Status = StatIdle; |
| 62 | } |
| 63 | /*}}}*/ |
| 64 | // Acquire::Item::~Item - Destructor /*{{{*/ |
| 65 | // --------------------------------------------------------------------- |
| 66 | /* */ |
| 67 | pkgAcquire::Item::~Item() |
| 68 | { |
| 69 | Owner->Remove(this); |
| 70 | } |
| 71 | /*}}}*/ |
| 72 | // Acquire::Item::Failed - Item failed to download /*{{{*/ |
| 73 | // --------------------------------------------------------------------- |
| 74 | /* We return to an idle state if there are still other queues that could |
| 75 | fetch this object */ |
| 76 | void pkgAcquire::Item::Failed(string Message,pkgAcquire::MethodConfig *Cnf) |
| 77 | { |
| 78 | Status = StatIdle; |
| 79 | ErrorText = LookupTag(Message,"Message"); |
| 80 | UsedMirror = LookupTag(Message,"UsedMirror"); |
| 81 | if (QueueCounter <= 1) |
| 82 | { |
| 83 | /* This indicates that the file is not available right now but might |
| 84 | be sometime later. If we do a retry cycle then this should be |
| 85 | retried [CDROMs] */ |
| 86 | if (Cnf->LocalOnly == true && |
| 87 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) |
| 88 | { |
| 89 | Status = StatIdle; |
| 90 | Dequeue(); |
| 91 | return; |
| 92 | } |
| 93 | |
| 94 | Status = StatError; |
| 95 | Dequeue(); |
| 96 | } |
| 97 | |
| 98 | // report mirror failure back to LP if we actually use a mirror |
| 99 | string FailReason = LookupTag(Message, "FailReason"); |
| 100 | if(FailReason.size() != 0) |
| 101 | ReportMirrorFailure(FailReason); |
| 102 | else |
| 103 | ReportMirrorFailure(ErrorText); |
| 104 | } |
| 105 | /*}}}*/ |
| 106 | // Acquire::Item::Start - Item has begun to download /*{{{*/ |
| 107 | // --------------------------------------------------------------------- |
| 108 | /* Stash status and the file size. Note that setting Complete means |
| 109 | sub-phases of the acquire process such as decompresion are operating */ |
| 110 | void pkgAcquire::Item::Start(string /*Message*/,unsigned long long Size) |
| 111 | { |
| 112 | Status = StatFetching; |
| 113 | if (FileSize == 0 && Complete == false) |
| 114 | FileSize = Size; |
| 115 | } |
| 116 | /*}}}*/ |
| 117 | // Acquire::Item::Done - Item downloaded OK /*{{{*/ |
| 118 | // --------------------------------------------------------------------- |
| 119 | /* */ |
| 120 | void pkgAcquire::Item::Done(string Message,unsigned long long Size,string /*Hash*/, |
| 121 | pkgAcquire::MethodConfig * /*Cnf*/) |
| 122 | { |
| 123 | // We just downloaded something.. |
| 124 | string FileName = LookupTag(Message,"Filename"); |
| 125 | UsedMirror = LookupTag(Message,"UsedMirror"); |
| 126 | if (Complete == false && !Local && FileName == DestFile) |
| 127 | { |
| 128 | if (Owner->Log != 0) |
| 129 | Owner->Log->Fetched(Size,atoi(LookupTag(Message,"Resume-Point","0").c_str())); |
| 130 | } |
| 131 | |
| 132 | if (FileSize == 0) |
| 133 | FileSize= Size; |
| 134 | Status = StatDone; |
| 135 | ErrorText = string(); |
| 136 | Owner->Dequeue(this); |
| 137 | } |
| 138 | /*}}}*/ |
| 139 | // Acquire::Item::Rename - Rename a file /*{{{*/ |
| 140 | // --------------------------------------------------------------------- |
| 141 | /* This helper function is used by a lot of item methods as their final |
| 142 | step */ |
| 143 | void pkgAcquire::Item::Rename(string From,string To) |
| 144 | { |
| 145 | if (rename(From.c_str(),To.c_str()) != 0) |
| 146 | { |
| 147 | char S[300]; |
| 148 | snprintf(S,sizeof(S),_("rename failed, %s (%s -> %s)."),strerror(errno), |
| 149 | From.c_str(),To.c_str()); |
| 150 | Status = StatError; |
| 151 | ErrorText = S; |
| 152 | } |
| 153 | } |
| 154 | /*}}}*/ |
| 155 | bool pkgAcquire::Item::RenameOnError(pkgAcquire::Item::RenameOnErrorState const error)/*{{{*/ |
| 156 | { |
| 157 | if(FileExists(DestFile)) |
| 158 | Rename(DestFile, DestFile + ".FAILED"); |
| 159 | |
| 160 | switch (error) |
| 161 | { |
| 162 | case HashSumMismatch: |
| 163 | ErrorText = _("Hash Sum mismatch"); |
| 164 | Status = StatAuthError; |
| 165 | ReportMirrorFailure("HashChecksumFailure"); |
| 166 | break; |
| 167 | case SizeMismatch: |
| 168 | ErrorText = _("Size mismatch"); |
| 169 | Status = StatAuthError; |
| 170 | ReportMirrorFailure("SizeFailure"); |
| 171 | break; |
| 172 | case InvalidFormat: |
| 173 | ErrorText = _("Invalid file format"); |
| 174 | Status = StatError; |
| 175 | // do not report as usually its not the mirrors fault, but Portal/Proxy |
| 176 | break; |
| 177 | } |
| 178 | return false; |
| 179 | } |
| 180 | /*}}}*/ |
| 181 | // Acquire::Item::ReportMirrorFailure /*{{{*/ |
| 182 | // --------------------------------------------------------------------- |
| 183 | void pkgAcquire::Item::ReportMirrorFailure(string FailCode) |
| 184 | { |
| 185 | // we only act if a mirror was used at all |
| 186 | if(UsedMirror.empty()) |
| 187 | return; |
| 188 | #if 0 |
| 189 | std::cerr << "\nReportMirrorFailure: " |
| 190 | << UsedMirror |
| 191 | << " Uri: " << DescURI() |
| 192 | << " FailCode: " |
| 193 | << FailCode << std::endl; |
| 194 | #endif |
| 195 | const char *Args[40]; |
| 196 | unsigned int i = 0; |
| 197 | string report = _config->Find("Methods::Mirror::ProblemReporting", |
| 198 | "/usr/lib/apt/apt-report-mirror-failure"); |
| 199 | if(!FileExists(report)) |
| 200 | return; |
| 201 | Args[i++] = report.c_str(); |
| 202 | Args[i++] = UsedMirror.c_str(); |
| 203 | Args[i++] = DescURI().c_str(); |
| 204 | Args[i++] = FailCode.c_str(); |
| 205 | Args[i++] = NULL; |
| 206 | pid_t pid = ExecFork(); |
| 207 | if(pid < 0) |
| 208 | { |
| 209 | _error->Error("ReportMirrorFailure Fork failed"); |
| 210 | return; |
| 211 | } |
| 212 | else if(pid == 0) |
| 213 | { |
| 214 | execvp(Args[0], (char**)Args); |
| 215 | std::cerr << "Could not exec " << Args[0] << std::endl; |
| 216 | _exit(100); |
| 217 | } |
| 218 | if(!ExecWait(pid, "report-mirror-failure")) |
| 219 | { |
| 220 | _error->Warning("Couldn't report problem to '%s'", |
| 221 | _config->Find("Methods::Mirror::ProblemReporting").c_str()); |
| 222 | } |
| 223 | } |
| 224 | /*}}}*/ |
| 225 | // AcqSubIndex::AcqSubIndex - Constructor /*{{{*/ |
| 226 | // --------------------------------------------------------------------- |
| 227 | /* Get a sub-index file based on checksums from a 'master' file and |
| 228 | possibly query additional files */ |
| 229 | pkgAcqSubIndex::pkgAcqSubIndex(pkgAcquire *Owner, string const &URI, |
| 230 | string const &URIDesc, string const &ShortDesc, |
| 231 | HashString const &ExpectedHash) |
| 232 | : Item(Owner), ExpectedHash(ExpectedHash) |
| 233 | { |
| 234 | /* XXX: Beware: Currently this class does nothing (of value) anymore ! */ |
| 235 | Debug = _config->FindB("Debug::pkgAcquire::SubIndex",false); |
| 236 | |
| 237 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 238 | DestFile += URItoFileName(URI); |
| 239 | |
| 240 | Desc.URI = URI; |
| 241 | Desc.Description = URIDesc; |
| 242 | Desc.Owner = this; |
| 243 | Desc.ShortDesc = ShortDesc; |
| 244 | |
| 245 | QueueURI(Desc); |
| 246 | |
| 247 | if(Debug) |
| 248 | std::clog << "pkgAcqSubIndex: " << Desc.URI << std::endl; |
| 249 | } |
| 250 | /*}}}*/ |
| 251 | // AcqSubIndex::Custom600Headers - Insert custom request headers /*{{{*/ |
| 252 | // --------------------------------------------------------------------- |
| 253 | /* The only header we use is the last-modified header. */ |
| 254 | string pkgAcqSubIndex::Custom600Headers() |
| 255 | { |
| 256 | string Final = _config->FindDir("Dir::State::lists"); |
| 257 | Final += URItoFileName(Desc.URI); |
| 258 | |
| 259 | struct stat Buf; |
| 260 | if (stat(Final.c_str(),&Buf) != 0) |
| 261 | return "\nIndex-File: true\nFail-Ignore: true\n"; |
| 262 | return "\nIndex-File: true\nFail-Ignore: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 263 | } |
| 264 | /*}}}*/ |
| 265 | void pkgAcqSubIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/ |
| 266 | { |
| 267 | if(Debug) |
| 268 | std::clog << "pkgAcqSubIndex failed: " << Desc.URI << " with " << Message << std::endl; |
| 269 | |
| 270 | Complete = false; |
| 271 | Status = StatDone; |
| 272 | Dequeue(); |
| 273 | |
| 274 | // No good Index is provided |
| 275 | } |
| 276 | /*}}}*/ |
| 277 | void pkgAcqSubIndex::Done(string Message,unsigned long long Size,string Md5Hash, /*{{{*/ |
| 278 | pkgAcquire::MethodConfig *Cnf) |
| 279 | { |
| 280 | if(Debug) |
| 281 | std::clog << "pkgAcqSubIndex::Done(): " << Desc.URI << std::endl; |
| 282 | |
| 283 | string FileName = LookupTag(Message,"Filename"); |
| 284 | if (FileName.empty() == true) |
| 285 | { |
| 286 | Status = StatError; |
| 287 | ErrorText = "Method gave a blank filename"; |
| 288 | return; |
| 289 | } |
| 290 | |
| 291 | if (FileName != DestFile) |
| 292 | { |
| 293 | Local = true; |
| 294 | Desc.URI = "copy:" + FileName; |
| 295 | QueueURI(Desc); |
| 296 | return; |
| 297 | } |
| 298 | |
| 299 | Item::Done(Message,Size,Md5Hash,Cnf); |
| 300 | |
| 301 | string FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(Desc.URI); |
| 302 | |
| 303 | /* Downloaded invalid transindex => Error (LP: #346386) (Closes: #627642) */ |
| 304 | indexRecords SubIndexParser; |
| 305 | if (FileExists(DestFile) == true && !SubIndexParser.Load(DestFile)) { |
| 306 | Status = StatError; |
| 307 | ErrorText = SubIndexParser.ErrorText; |
| 308 | return; |
| 309 | } |
| 310 | |
| 311 | // success in downloading the index |
| 312 | // rename the index |
| 313 | if(Debug) |
| 314 | std::clog << "Renaming: " << DestFile << " -> " << FinalFile << std::endl; |
| 315 | Rename(DestFile,FinalFile); |
| 316 | chmod(FinalFile.c_str(),0644); |
| 317 | DestFile = FinalFile; |
| 318 | |
| 319 | if(ParseIndex(DestFile) == false) |
| 320 | return Failed("", NULL); |
| 321 | |
| 322 | Complete = true; |
| 323 | Status = StatDone; |
| 324 | Dequeue(); |
| 325 | return; |
| 326 | } |
| 327 | /*}}}*/ |
| 328 | bool pkgAcqSubIndex::ParseIndex(string const &IndexFile) /*{{{*/ |
| 329 | { |
| 330 | indexRecords SubIndexParser; |
| 331 | if (FileExists(IndexFile) == false || SubIndexParser.Load(IndexFile) == false) |
| 332 | return false; |
| 333 | // so something with the downloaded index |
| 334 | return true; |
| 335 | } |
| 336 | /*}}}*/ |
| 337 | // AcqDiffIndex::AcqDiffIndex - Constructor /*{{{*/ |
| 338 | // --------------------------------------------------------------------- |
| 339 | /* Get the DiffIndex file first and see if there are patches available |
| 340 | * If so, create a pkgAcqIndexDiffs fetcher that will get and apply the |
| 341 | * patches. If anything goes wrong in that process, it will fall back to |
| 342 | * the original packages file |
| 343 | */ |
| 344 | pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire *Owner, |
| 345 | string URI,string URIDesc,string ShortDesc, |
| 346 | HashString ExpectedHash) |
| 347 | : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), |
| 348 | Description(URIDesc) |
| 349 | { |
| 350 | |
| 351 | Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); |
| 352 | |
| 353 | Desc.Description = URIDesc + "/DiffIndex"; |
| 354 | Desc.Owner = this; |
| 355 | Desc.ShortDesc = ShortDesc; |
| 356 | Desc.URI = URI + ".diff/Index"; |
| 357 | |
| 358 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 359 | DestFile += URItoFileName(URI) + string(".DiffIndex"); |
| 360 | |
| 361 | if(Debug) |
| 362 | std::clog << "pkgAcqDiffIndex: " << Desc.URI << std::endl; |
| 363 | |
| 364 | // look for the current package file |
| 365 | CurrentPackagesFile = _config->FindDir("Dir::State::lists"); |
| 366 | CurrentPackagesFile += URItoFileName(RealURI); |
| 367 | |
| 368 | // FIXME: this file:/ check is a hack to prevent fetching |
| 369 | // from local sources. this is really silly, and |
| 370 | // should be fixed cleanly as soon as possible |
| 371 | if(!FileExists(CurrentPackagesFile) || |
| 372 | Desc.URI.substr(0,strlen("file:/")) == "file:/") |
| 373 | { |
| 374 | // we don't have a pkg file or we don't want to queue |
| 375 | if(Debug) |
| 376 | std::clog << "No index file, local or canceld by user" << std::endl; |
| 377 | Failed("", NULL); |
| 378 | return; |
| 379 | } |
| 380 | |
| 381 | if(Debug) |
| 382 | std::clog << "pkgAcqDiffIndex::pkgAcqDiffIndex(): " |
| 383 | << CurrentPackagesFile << std::endl; |
| 384 | |
| 385 | QueueURI(Desc); |
| 386 | |
| 387 | } |
| 388 | /*}}}*/ |
| 389 | // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ |
| 390 | // --------------------------------------------------------------------- |
| 391 | /* The only header we use is the last-modified header. */ |
| 392 | string pkgAcqDiffIndex::Custom600Headers() |
| 393 | { |
| 394 | string Final = _config->FindDir("Dir::State::lists"); |
| 395 | Final += URItoFileName(RealURI) + string(".IndexDiff"); |
| 396 | |
| 397 | if(Debug) |
| 398 | std::clog << "Custom600Header-IMS: " << Final << std::endl; |
| 399 | |
| 400 | struct stat Buf; |
| 401 | if (stat(Final.c_str(),&Buf) != 0) |
| 402 | return "\nIndex-File: true"; |
| 403 | |
| 404 | return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 405 | } |
| 406 | /*}}}*/ |
| 407 | bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile) /*{{{*/ |
| 408 | { |
| 409 | if(Debug) |
| 410 | std::clog << "pkgAcqDiffIndex::ParseIndexDiff() " << IndexDiffFile |
| 411 | << std::endl; |
| 412 | |
| 413 | pkgTagSection Tags; |
| 414 | string ServerSha1; |
| 415 | vector<DiffInfo> available_patches; |
| 416 | |
| 417 | FileFd Fd(IndexDiffFile,FileFd::ReadOnly); |
| 418 | pkgTagFile TF(&Fd); |
| 419 | if (_error->PendingError() == true) |
| 420 | return false; |
| 421 | |
| 422 | if(TF.Step(Tags) == true) |
| 423 | { |
| 424 | bool found = false; |
| 425 | DiffInfo d; |
| 426 | string size; |
| 427 | |
| 428 | string const tmp = Tags.FindS("SHA1-Current"); |
| 429 | std::stringstream ss(tmp); |
| 430 | ss >> ServerSha1 >> size; |
| 431 | unsigned long const ServerSize = atol(size.c_str()); |
| 432 | |
| 433 | FileFd fd(CurrentPackagesFile, FileFd::ReadOnly); |
| 434 | SHA1Summation SHA1; |
| 435 | SHA1.AddFD(fd); |
| 436 | string const local_sha1 = SHA1.Result(); |
| 437 | |
| 438 | if(local_sha1 == ServerSha1) |
| 439 | { |
| 440 | // we have the same sha1 as the server so we are done here |
| 441 | if(Debug) |
| 442 | std::clog << "Package file is up-to-date" << std::endl; |
| 443 | // list cleanup needs to know that this file as well as the already |
| 444 | // present index is ours, so we create an empty diff to save it for us |
| 445 | new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, |
| 446 | ExpectedHash, ServerSha1, available_patches); |
| 447 | return true; |
| 448 | } |
| 449 | else |
| 450 | { |
| 451 | if(Debug) |
| 452 | std::clog << "SHA1-Current: " << ServerSha1 << " and we start at "<< fd.Name() << " " << fd.Size() << " " << local_sha1 << std::endl; |
| 453 | |
| 454 | // check the historie and see what patches we need |
| 455 | string const history = Tags.FindS("SHA1-History"); |
| 456 | std::stringstream hist(history); |
| 457 | while(hist >> d.sha1 >> size >> d.file) |
| 458 | { |
| 459 | // read until the first match is found |
| 460 | // from that point on, we probably need all diffs |
| 461 | if(d.sha1 == local_sha1) |
| 462 | found=true; |
| 463 | else if (found == false) |
| 464 | continue; |
| 465 | |
| 466 | if(Debug) |
| 467 | std::clog << "Need to get diff: " << d.file << std::endl; |
| 468 | available_patches.push_back(d); |
| 469 | } |
| 470 | |
| 471 | if (available_patches.empty() == false) |
| 472 | { |
| 473 | // patching with too many files is rather slow compared to a fast download |
| 474 | unsigned long const fileLimit = _config->FindI("Acquire::PDiffs::FileLimit", 0); |
| 475 | if (fileLimit != 0 && fileLimit < available_patches.size()) |
| 476 | { |
| 477 | if (Debug) |
| 478 | std::clog << "Need " << available_patches.size() << " diffs (Limit is " << fileLimit |
| 479 | << ") so fallback to complete download" << std::endl; |
| 480 | return false; |
| 481 | } |
| 482 | |
| 483 | // see if the patches are too big |
| 484 | found = false; // it was true and it will be true again at the end |
| 485 | d = *available_patches.begin(); |
| 486 | string const firstPatch = d.file; |
| 487 | unsigned long patchesSize = 0; |
| 488 | std::stringstream patches(Tags.FindS("SHA1-Patches")); |
| 489 | while(patches >> d.sha1 >> size >> d.file) |
| 490 | { |
| 491 | if (firstPatch == d.file) |
| 492 | found = true; |
| 493 | else if (found == false) |
| 494 | continue; |
| 495 | |
| 496 | patchesSize += atol(size.c_str()); |
| 497 | } |
| 498 | unsigned long const sizeLimit = ServerSize * _config->FindI("Acquire::PDiffs::SizeLimit", 100); |
| 499 | if (sizeLimit > 0 && (sizeLimit/100) < patchesSize) |
| 500 | { |
| 501 | if (Debug) |
| 502 | std::clog << "Need " << patchesSize << " bytes (Limit is " << sizeLimit/100 |
| 503 | << ") so fallback to complete download" << std::endl; |
| 504 | return false; |
| 505 | } |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | // we have something, queue the next diff |
| 510 | if(found) |
| 511 | { |
| 512 | // queue the diffs |
| 513 | string::size_type const last_space = Description.rfind(" "); |
| 514 | if(last_space != string::npos) |
| 515 | Description.erase(last_space, Description.size()-last_space); |
| 516 | |
| 517 | /* decide if we should download patches one by one or in one go: |
| 518 | The first is good if the server merges patches, but many don't so client |
| 519 | based merging can be attempt in which case the second is better. |
| 520 | "bad things" will happen if patches are merged on the server, |
| 521 | but client side merging is attempt as well */ |
| 522 | bool pdiff_merge = _config->FindB("Acquire::PDiffs::Merge", true); |
| 523 | if (pdiff_merge == true) |
| 524 | { |
| 525 | // reprepro adds this flag if it has merged patches on the server |
| 526 | std::string const precedence = Tags.FindS("X-Patch-Precedence"); |
| 527 | pdiff_merge = (precedence != "merged"); |
| 528 | } |
| 529 | |
| 530 | if (pdiff_merge == false) |
| 531 | new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, |
| 532 | ExpectedHash, ServerSha1, available_patches); |
| 533 | else |
| 534 | { |
| 535 | std::vector<pkgAcqIndexMergeDiffs*> *diffs = new std::vector<pkgAcqIndexMergeDiffs*>(available_patches.size()); |
| 536 | for(size_t i = 0; i < available_patches.size(); ++i) |
| 537 | (*diffs)[i] = new pkgAcqIndexMergeDiffs(Owner, RealURI, Description, Desc.ShortDesc, ExpectedHash, |
| 538 | available_patches[i], diffs); |
| 539 | } |
| 540 | |
| 541 | Complete = false; |
| 542 | Status = StatDone; |
| 543 | Dequeue(); |
| 544 | return true; |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | // Nothing found, report and return false |
| 549 | // Failing here is ok, if we return false later, the full |
| 550 | // IndexFile is queued |
| 551 | if(Debug) |
| 552 | std::clog << "Can't find a patch in the index file" << std::endl; |
| 553 | return false; |
| 554 | } |
| 555 | /*}}}*/ |
| 556 | void pkgAcqDiffIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/ |
| 557 | { |
| 558 | if(Debug) |
| 559 | std::clog << "pkgAcqDiffIndex failed: " << Desc.URI << " with " << Message << std::endl |
| 560 | << "Falling back to normal index file acquire" << std::endl; |
| 561 | |
| 562 | new pkgAcqIndex(Owner, RealURI, Description, Desc.ShortDesc, |
| 563 | ExpectedHash); |
| 564 | |
| 565 | Complete = false; |
| 566 | Status = StatDone; |
| 567 | Dequeue(); |
| 568 | } |
| 569 | /*}}}*/ |
| 570 | void pkgAcqDiffIndex::Done(string Message,unsigned long long Size,string Md5Hash, /*{{{*/ |
| 571 | pkgAcquire::MethodConfig *Cnf) |
| 572 | { |
| 573 | if(Debug) |
| 574 | std::clog << "pkgAcqDiffIndex::Done(): " << Desc.URI << std::endl; |
| 575 | |
| 576 | Item::Done(Message,Size,Md5Hash,Cnf); |
| 577 | |
| 578 | string FinalFile; |
| 579 | FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI); |
| 580 | |
| 581 | // success in downloading the index |
| 582 | // rename the index |
| 583 | FinalFile += string(".IndexDiff"); |
| 584 | if(Debug) |
| 585 | std::clog << "Renaming: " << DestFile << " -> " << FinalFile |
| 586 | << std::endl; |
| 587 | Rename(DestFile,FinalFile); |
| 588 | chmod(FinalFile.c_str(),0644); |
| 589 | DestFile = FinalFile; |
| 590 | |
| 591 | if(!ParseDiffIndex(DestFile)) |
| 592 | return Failed("", NULL); |
| 593 | |
| 594 | Complete = true; |
| 595 | Status = StatDone; |
| 596 | Dequeue(); |
| 597 | return; |
| 598 | } |
| 599 | /*}}}*/ |
| 600 | // AcqIndexDiffs::AcqIndexDiffs - Constructor /*{{{*/ |
| 601 | // --------------------------------------------------------------------- |
| 602 | /* The package diff is added to the queue. one object is constructed |
| 603 | * for each diff and the index |
| 604 | */ |
| 605 | pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire *Owner, |
| 606 | string URI,string URIDesc,string ShortDesc, |
| 607 | HashString ExpectedHash, |
| 608 | string ServerSha1, |
| 609 | vector<DiffInfo> diffs) |
| 610 | : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), |
| 611 | available_patches(diffs), ServerSha1(ServerSha1) |
| 612 | { |
| 613 | |
| 614 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 615 | DestFile += URItoFileName(URI); |
| 616 | |
| 617 | Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); |
| 618 | |
| 619 | Description = URIDesc; |
| 620 | Desc.Owner = this; |
| 621 | Desc.ShortDesc = ShortDesc; |
| 622 | |
| 623 | if(available_patches.empty() == true) |
| 624 | { |
| 625 | // we are done (yeah!) |
| 626 | Finish(true); |
| 627 | } |
| 628 | else |
| 629 | { |
| 630 | // get the next diff |
| 631 | State = StateFetchDiff; |
| 632 | QueueNextDiff(); |
| 633 | } |
| 634 | } |
| 635 | /*}}}*/ |
| 636 | void pkgAcqIndexDiffs::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/ |
| 637 | { |
| 638 | if(Debug) |
| 639 | std::clog << "pkgAcqIndexDiffs failed: " << Desc.URI << " with " << Message << std::endl |
| 640 | << "Falling back to normal index file acquire" << std::endl; |
| 641 | new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc, |
| 642 | ExpectedHash); |
| 643 | Finish(); |
| 644 | } |
| 645 | /*}}}*/ |
| 646 | // Finish - helper that cleans the item out of the fetcher queue /*{{{*/ |
| 647 | void pkgAcqIndexDiffs::Finish(bool allDone) |
| 648 | { |
| 649 | // we restore the original name, this is required, otherwise |
| 650 | // the file will be cleaned |
| 651 | if(allDone) |
| 652 | { |
| 653 | DestFile = _config->FindDir("Dir::State::lists"); |
| 654 | DestFile += URItoFileName(RealURI); |
| 655 | |
| 656 | if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile)) |
| 657 | { |
| 658 | RenameOnError(HashSumMismatch); |
| 659 | Dequeue(); |
| 660 | return; |
| 661 | } |
| 662 | |
| 663 | // this is for the "real" finish |
| 664 | Complete = true; |
| 665 | Status = StatDone; |
| 666 | Dequeue(); |
| 667 | if(Debug) |
| 668 | std::clog << "\n\nallDone: " << DestFile << "\n" << std::endl; |
| 669 | return; |
| 670 | } |
| 671 | |
| 672 | if(Debug) |
| 673 | std::clog << "Finishing: " << Desc.URI << std::endl; |
| 674 | Complete = false; |
| 675 | Status = StatDone; |
| 676 | Dequeue(); |
| 677 | return; |
| 678 | } |
| 679 | /*}}}*/ |
| 680 | bool pkgAcqIndexDiffs::QueueNextDiff() /*{{{*/ |
| 681 | { |
| 682 | |
| 683 | // calc sha1 of the just patched file |
| 684 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 685 | FinalFile += URItoFileName(RealURI); |
| 686 | |
| 687 | FileFd fd(FinalFile, FileFd::ReadOnly); |
| 688 | SHA1Summation SHA1; |
| 689 | SHA1.AddFD(fd); |
| 690 | string local_sha1 = string(SHA1.Result()); |
| 691 | if(Debug) |
| 692 | std::clog << "QueueNextDiff: " |
| 693 | << FinalFile << " (" << local_sha1 << ")"<<std::endl; |
| 694 | |
| 695 | // final file reached before all patches are applied |
| 696 | if(local_sha1 == ServerSha1) |
| 697 | { |
| 698 | Finish(true); |
| 699 | return true; |
| 700 | } |
| 701 | |
| 702 | // remove all patches until the next matching patch is found |
| 703 | // this requires the Index file to be ordered |
| 704 | for(vector<DiffInfo>::iterator I=available_patches.begin(); |
| 705 | available_patches.empty() == false && |
| 706 | I != available_patches.end() && |
| 707 | I->sha1 != local_sha1; |
| 708 | ++I) |
| 709 | { |
| 710 | available_patches.erase(I); |
| 711 | } |
| 712 | |
| 713 | // error checking and falling back if no patch was found |
| 714 | if(available_patches.empty() == true) |
| 715 | { |
| 716 | Failed("", NULL); |
| 717 | return false; |
| 718 | } |
| 719 | |
| 720 | // queue the right diff |
| 721 | Desc.URI = RealURI + ".diff/" + available_patches[0].file + ".gz"; |
| 722 | Desc.Description = Description + " " + available_patches[0].file + string(".pdiff"); |
| 723 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 724 | DestFile += URItoFileName(RealURI + ".diff/" + available_patches[0].file); |
| 725 | |
| 726 | if(Debug) |
| 727 | std::clog << "pkgAcqIndexDiffs::QueueNextDiff(): " << Desc.URI << std::endl; |
| 728 | |
| 729 | QueueURI(Desc); |
| 730 | |
| 731 | return true; |
| 732 | } |
| 733 | /*}}}*/ |
| 734 | void pkgAcqIndexDiffs::Done(string Message,unsigned long long Size,string Md5Hash, /*{{{*/ |
| 735 | pkgAcquire::MethodConfig *Cnf) |
| 736 | { |
| 737 | if(Debug) |
| 738 | std::clog << "pkgAcqIndexDiffs::Done(): " << Desc.URI << std::endl; |
| 739 | |
| 740 | Item::Done(Message,Size,Md5Hash,Cnf); |
| 741 | |
| 742 | string FinalFile; |
| 743 | FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI); |
| 744 | |
| 745 | // success in downloading a diff, enter ApplyDiff state |
| 746 | if(State == StateFetchDiff) |
| 747 | { |
| 748 | |
| 749 | // rred excepts the patch as $FinalFile.ed |
| 750 | Rename(DestFile,FinalFile+".ed"); |
| 751 | |
| 752 | if(Debug) |
| 753 | std::clog << "Sending to rred method: " << FinalFile << std::endl; |
| 754 | |
| 755 | State = StateApplyDiff; |
| 756 | Local = true; |
| 757 | Desc.URI = "rred:" + FinalFile; |
| 758 | QueueURI(Desc); |
| 759 | Mode = "rred"; |
| 760 | return; |
| 761 | } |
| 762 | |
| 763 | |
| 764 | // success in download/apply a diff, queue next (if needed) |
| 765 | if(State == StateApplyDiff) |
| 766 | { |
| 767 | // remove the just applied patch |
| 768 | available_patches.erase(available_patches.begin()); |
| 769 | unlink((FinalFile + ".ed").c_str()); |
| 770 | |
| 771 | // move into place |
| 772 | if(Debug) |
| 773 | { |
| 774 | std::clog << "Moving patched file in place: " << std::endl |
| 775 | << DestFile << " -> " << FinalFile << std::endl; |
| 776 | } |
| 777 | Rename(DestFile,FinalFile); |
| 778 | chmod(FinalFile.c_str(),0644); |
| 779 | |
| 780 | // see if there is more to download |
| 781 | if(available_patches.empty() == false) { |
| 782 | new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc, |
| 783 | ExpectedHash, ServerSha1, available_patches); |
| 784 | return Finish(); |
| 785 | } else |
| 786 | return Finish(true); |
| 787 | } |
| 788 | } |
| 789 | /*}}}*/ |
| 790 | // AcqIndexMergeDiffs::AcqIndexMergeDiffs - Constructor /*{{{*/ |
| 791 | pkgAcqIndexMergeDiffs::pkgAcqIndexMergeDiffs(pkgAcquire *Owner, |
| 792 | string const &URI, string const &URIDesc, |
| 793 | string const &ShortDesc, HashString const &ExpectedHash, |
| 794 | DiffInfo const &patch, |
| 795 | std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches) |
| 796 | : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash), |
| 797 | patch(patch),allPatches(allPatches), State(StateFetchDiff) |
| 798 | { |
| 799 | |
| 800 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 801 | DestFile += URItoFileName(URI); |
| 802 | |
| 803 | Debug = _config->FindB("Debug::pkgAcquire::Diffs",false); |
| 804 | |
| 805 | Description = URIDesc; |
| 806 | Desc.Owner = this; |
| 807 | Desc.ShortDesc = ShortDesc; |
| 808 | |
| 809 | Desc.URI = RealURI + ".diff/" + patch.file + ".gz"; |
| 810 | Desc.Description = Description + " " + patch.file + string(".pdiff"); |
| 811 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 812 | DestFile += URItoFileName(RealURI + ".diff/" + patch.file); |
| 813 | |
| 814 | if(Debug) |
| 815 | std::clog << "pkgAcqIndexMergeDiffs: " << Desc.URI << std::endl; |
| 816 | |
| 817 | QueueURI(Desc); |
| 818 | } |
| 819 | /*}}}*/ |
| 820 | void pkgAcqIndexMergeDiffs::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/)/*{{{*/ |
| 821 | { |
| 822 | if(Debug) |
| 823 | std::clog << "pkgAcqIndexMergeDiffs failed: " << Desc.URI << " with " << Message << std::endl; |
| 824 | Complete = false; |
| 825 | Status = StatDone; |
| 826 | Dequeue(); |
| 827 | |
| 828 | // check if we are the first to fail, otherwise we are done here |
| 829 | State = StateDoneDiff; |
| 830 | for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin(); |
| 831 | I != allPatches->end(); ++I) |
| 832 | if ((*I)->State == StateErrorDiff) |
| 833 | return; |
| 834 | |
| 835 | // first failure means we should fallback |
| 836 | State = StateErrorDiff; |
| 837 | std::clog << "Falling back to normal index file acquire" << std::endl; |
| 838 | new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc, |
| 839 | ExpectedHash); |
| 840 | } |
| 841 | /*}}}*/ |
| 842 | void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,string Md5Hash, /*{{{*/ |
| 843 | pkgAcquire::MethodConfig *Cnf) |
| 844 | { |
| 845 | if(Debug) |
| 846 | std::clog << "pkgAcqIndexMergeDiffs::Done(): " << Desc.URI << std::endl; |
| 847 | |
| 848 | Item::Done(Message,Size,Md5Hash,Cnf); |
| 849 | |
| 850 | string const FinalFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); |
| 851 | |
| 852 | if (State == StateFetchDiff) |
| 853 | { |
| 854 | // rred expects the patch as $FinalFile.ed.$patchname.gz |
| 855 | Rename(DestFile, FinalFile + ".ed." + patch.file + ".gz"); |
| 856 | |
| 857 | // check if this is the last completed diff |
| 858 | State = StateDoneDiff; |
| 859 | for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin(); |
| 860 | I != allPatches->end(); ++I) |
| 861 | if ((*I)->State != StateDoneDiff) |
| 862 | { |
| 863 | if(Debug) |
| 864 | std::clog << "Not the last done diff in the batch: " << Desc.URI << std::endl; |
| 865 | return; |
| 866 | } |
| 867 | |
| 868 | // this is the last completed diff, so we are ready to apply now |
| 869 | State = StateApplyDiff; |
| 870 | |
| 871 | if(Debug) |
| 872 | std::clog << "Sending to rred method: " << FinalFile << std::endl; |
| 873 | |
| 874 | Local = true; |
| 875 | Desc.URI = "rred:" + FinalFile; |
| 876 | QueueURI(Desc); |
| 877 | Mode = "rred"; |
| 878 | return; |
| 879 | } |
| 880 | // success in download/apply all diffs, clean up |
| 881 | else if (State == StateApplyDiff) |
| 882 | { |
| 883 | // see if we really got the expected file |
| 884 | if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile)) |
| 885 | { |
| 886 | RenameOnError(HashSumMismatch); |
| 887 | return; |
| 888 | } |
| 889 | |
| 890 | // move the result into place |
| 891 | if(Debug) |
| 892 | std::clog << "Moving patched file in place: " << std::endl |
| 893 | << DestFile << " -> " << FinalFile << std::endl; |
| 894 | Rename(DestFile, FinalFile); |
| 895 | chmod(FinalFile.c_str(), 0644); |
| 896 | |
| 897 | // otherwise lists cleanup will eat the file |
| 898 | DestFile = FinalFile; |
| 899 | |
| 900 | // ensure the ed's are gone regardless of list-cleanup |
| 901 | for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin(); |
| 902 | I != allPatches->end(); ++I) |
| 903 | { |
| 904 | std::string patch = FinalFile + ".ed." + (*I)->patch.file + ".gz"; |
| 905 | unlink(patch.c_str()); |
| 906 | } |
| 907 | |
| 908 | // all set and done |
| 909 | Complete = true; |
| 910 | if(Debug) |
| 911 | std::clog << "allDone: " << DestFile << "\n" << std::endl; |
| 912 | } |
| 913 | } |
| 914 | /*}}}*/ |
| 915 | // AcqIndex::AcqIndex - Constructor /*{{{*/ |
| 916 | // --------------------------------------------------------------------- |
| 917 | /* The package file is added to the queue and a second class is |
| 918 | instantiated to fetch the revision file */ |
| 919 | pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, |
| 920 | string URI,string URIDesc,string ShortDesc, |
| 921 | HashString ExpectedHash, string comprExt) |
| 922 | : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash) |
| 923 | { |
| 924 | if(comprExt.empty() == true) |
| 925 | { |
| 926 | // autoselect the compression method |
| 927 | std::vector<std::string> types = APT::Configuration::getCompressionTypes(); |
| 928 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) |
| 929 | comprExt.append(*t).append(" "); |
| 930 | if (comprExt.empty() == false) |
| 931 | comprExt.erase(comprExt.end()-1); |
| 932 | } |
| 933 | CompressionExtension = comprExt; |
| 934 | |
| 935 | Verify = true; |
| 936 | |
| 937 | Init(URI, URIDesc, ShortDesc); |
| 938 | } |
| 939 | pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, IndexTarget const *Target, |
| 940 | HashString const &ExpectedHash, indexRecords const *MetaIndexParser) |
| 941 | : Item(Owner), RealURI(Target->URI), ExpectedHash(ExpectedHash) |
| 942 | { |
| 943 | // autoselect the compression method |
| 944 | std::vector<std::string> types = APT::Configuration::getCompressionTypes(); |
| 945 | CompressionExtension = ""; |
| 946 | if (ExpectedHash.empty() == false) |
| 947 | { |
| 948 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) |
| 949 | if (*t == "uncompressed" || MetaIndexParser->Exists(string(Target->MetaKey).append(".").append(*t)) == true) |
| 950 | CompressionExtension.append(*t).append(" "); |
| 951 | } |
| 952 | else |
| 953 | { |
| 954 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) |
| 955 | CompressionExtension.append(*t).append(" "); |
| 956 | } |
| 957 | if (CompressionExtension.empty() == false) |
| 958 | CompressionExtension.erase(CompressionExtension.end()-1); |
| 959 | |
| 960 | // only verify non-optional targets, see acquire-item.h for a FIXME |
| 961 | // to make this more flexible |
| 962 | if (Target->IsOptional()) |
| 963 | Verify = false; |
| 964 | else |
| 965 | Verify = true; |
| 966 | |
| 967 | Init(Target->URI, Target->Description, Target->ShortDesc); |
| 968 | } |
| 969 | /*}}}*/ |
| 970 | // AcqIndex::Init - defered Constructor /*{{{*/ |
| 971 | void pkgAcqIndex::Init(string const &URI, string const &URIDesc, string const &ShortDesc) { |
| 972 | Decompression = false; |
| 973 | Erase = false; |
| 974 | |
| 975 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 976 | DestFile += URItoFileName(URI); |
| 977 | |
| 978 | std::string const comprExt = CompressionExtension.substr(0, CompressionExtension.find(' ')); |
| 979 | if (comprExt == "uncompressed") |
| 980 | Desc.URI = URI; |
| 981 | else |
| 982 | Desc.URI = URI + '.' + comprExt; |
| 983 | |
| 984 | Desc.Description = URIDesc; |
| 985 | Desc.Owner = this; |
| 986 | Desc.ShortDesc = ShortDesc; |
| 987 | |
| 988 | QueueURI(Desc); |
| 989 | } |
| 990 | /*}}}*/ |
| 991 | // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ |
| 992 | // --------------------------------------------------------------------- |
| 993 | /* The only header we use is the last-modified header. */ |
| 994 | string pkgAcqIndex::Custom600Headers() |
| 995 | { |
| 996 | string Final = _config->FindDir("Dir::State::lists"); |
| 997 | Final += URItoFileName(RealURI); |
| 998 | if (_config->FindB("Acquire::GzipIndexes",false)) |
| 999 | Final += ".gz"; |
| 1000 | |
| 1001 | string msg = "\nIndex-File: true"; |
| 1002 | // FIXME: this really should use "IndexTarget::IsOptional()" but that |
| 1003 | // seems to be difficult without breaking ABI |
| 1004 | if (ShortDesc().find("Translation") != 0) |
| 1005 | msg += "\nFail-Ignore: true"; |
| 1006 | struct stat Buf; |
| 1007 | if (stat(Final.c_str(),&Buf) == 0) |
| 1008 | msg += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 1009 | |
| 1010 | return msg; |
| 1011 | } |
| 1012 | /*}}}*/ |
| 1013 | void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/ |
| 1014 | { |
| 1015 | size_t const nextExt = CompressionExtension.find(' '); |
| 1016 | if (nextExt != std::string::npos) |
| 1017 | { |
| 1018 | CompressionExtension = CompressionExtension.substr(nextExt+1); |
| 1019 | Init(RealURI, Desc.Description, Desc.ShortDesc); |
| 1020 | return; |
| 1021 | } |
| 1022 | |
| 1023 | // on decompression failure, remove bad versions in partial/ |
| 1024 | if (Decompression && Erase) { |
| 1025 | string s = _config->FindDir("Dir::State::lists") + "partial/"; |
| 1026 | s.append(URItoFileName(RealURI)); |
| 1027 | unlink(s.c_str()); |
| 1028 | } |
| 1029 | |
| 1030 | Item::Failed(Message,Cnf); |
| 1031 | } |
| 1032 | /*}}}*/ |
| 1033 | // AcqIndex::Done - Finished a fetch /*{{{*/ |
| 1034 | // --------------------------------------------------------------------- |
| 1035 | /* This goes through a number of states.. On the initial fetch the |
| 1036 | method could possibly return an alternate filename which points |
| 1037 | to the uncompressed version of the file. If this is so the file |
| 1038 | is copied into the partial directory. In all other cases the file |
| 1039 | is decompressed with a gzip uri. */ |
| 1040 | void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash, |
| 1041 | pkgAcquire::MethodConfig *Cfg) |
| 1042 | { |
| 1043 | Item::Done(Message,Size,Hash,Cfg); |
| 1044 | |
| 1045 | if (Decompression == true) |
| 1046 | { |
| 1047 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) |
| 1048 | { |
| 1049 | std::cerr << std::endl << RealURI << ": Computed Hash: " << Hash; |
| 1050 | std::cerr << " Expected Hash: " << ExpectedHash.toStr() << std::endl; |
| 1051 | } |
| 1052 | |
| 1053 | if (!ExpectedHash.empty() && ExpectedHash.toStr() != Hash) |
| 1054 | { |
| 1055 | RenameOnError(HashSumMismatch); |
| 1056 | return; |
| 1057 | } |
| 1058 | |
| 1059 | /* Verify the index file for correctness (all indexes must |
| 1060 | * have a Package field) (LP: #346386) (Closes: #627642) */ |
| 1061 | if (Verify == true) |
| 1062 | { |
| 1063 | FileFd fd(DestFile, FileFd::ReadOnly); |
| 1064 | // Only test for correctness if the file is not empty (empty is ok) |
| 1065 | if (fd.FileSize() > 0) |
| 1066 | { |
| 1067 | pkgTagSection sec; |
| 1068 | pkgTagFile tag(&fd); |
| 1069 | |
| 1070 | // all our current indexes have a field 'Package' in each section |
| 1071 | if (_error->PendingError() == true || tag.Step(sec) == false || sec.Exists("Package") == false) |
| 1072 | { |
| 1073 | RenameOnError(InvalidFormat); |
| 1074 | return; |
| 1075 | } |
| 1076 | } |
| 1077 | } |
| 1078 | |
| 1079 | // Done, move it into position |
| 1080 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 1081 | FinalFile += URItoFileName(RealURI); |
| 1082 | Rename(DestFile,FinalFile); |
| 1083 | chmod(FinalFile.c_str(),0644); |
| 1084 | |
| 1085 | /* We restore the original name to DestFile so that the clean operation |
| 1086 | will work OK */ |
| 1087 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 1088 | DestFile += URItoFileName(RealURI); |
| 1089 | |
| 1090 | // Remove the compressed version. |
| 1091 | if (Erase == true) |
| 1092 | unlink(DestFile.c_str()); |
| 1093 | return; |
| 1094 | } |
| 1095 | |
| 1096 | Erase = false; |
| 1097 | Complete = true; |
| 1098 | |
| 1099 | // Handle the unzipd case |
| 1100 | string FileName = LookupTag(Message,"Alt-Filename"); |
| 1101 | if (FileName.empty() == false) |
| 1102 | { |
| 1103 | // The files timestamp matches |
| 1104 | if (StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true) |
| 1105 | return; |
| 1106 | Decompression = true; |
| 1107 | Local = true; |
| 1108 | DestFile += ".decomp"; |
| 1109 | Desc.URI = "copy:" + FileName; |
| 1110 | QueueURI(Desc); |
| 1111 | Mode = "copy"; |
| 1112 | return; |
| 1113 | } |
| 1114 | |
| 1115 | FileName = LookupTag(Message,"Filename"); |
| 1116 | if (FileName.empty() == true) |
| 1117 | { |
| 1118 | Status = StatError; |
| 1119 | ErrorText = "Method gave a blank filename"; |
| 1120 | } |
| 1121 | |
| 1122 | std::string const compExt = CompressionExtension.substr(0, CompressionExtension.find(' ')); |
| 1123 | |
| 1124 | // The files timestamp matches |
| 1125 | if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) { |
| 1126 | if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz") |
| 1127 | // Update DestFile for .gz suffix so that the clean operation keeps it |
| 1128 | DestFile += ".gz"; |
| 1129 | return; |
| 1130 | } |
| 1131 | |
| 1132 | if (FileName == DestFile) |
| 1133 | Erase = true; |
| 1134 | else |
| 1135 | Local = true; |
| 1136 | |
| 1137 | string decompProg; |
| 1138 | |
| 1139 | // If we enable compressed indexes and already have gzip, keep it |
| 1140 | if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz" && !Local) { |
| 1141 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 1142 | FinalFile += URItoFileName(RealURI) + ".gz"; |
| 1143 | Rename(DestFile,FinalFile); |
| 1144 | chmod(FinalFile.c_str(),0644); |
| 1145 | |
| 1146 | // Update DestFile for .gz suffix so that the clean operation keeps it |
| 1147 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 1148 | DestFile += URItoFileName(RealURI) + ".gz"; |
| 1149 | return; |
| 1150 | } |
| 1151 | |
| 1152 | // get the binary name for your used compression type |
| 1153 | decompProg = _config->Find(string("Acquire::CompressionTypes::").append(compExt),""); |
| 1154 | if(decompProg.empty() == false); |
| 1155 | else if(compExt == "uncompressed") |
| 1156 | decompProg = "copy"; |
| 1157 | else { |
| 1158 | _error->Error("Unsupported extension: %s", compExt.c_str()); |
| 1159 | return; |
| 1160 | } |
| 1161 | |
| 1162 | Decompression = true; |
| 1163 | DestFile += ".decomp"; |
| 1164 | Desc.URI = decompProg + ":" + FileName; |
| 1165 | QueueURI(Desc); |
| 1166 | |
| 1167 | // FIXME: this points to a c++ string that goes out of scope |
| 1168 | Mode = decompProg.c_str(); |
| 1169 | } |
| 1170 | /*}}}*/ |
| 1171 | // AcqIndexTrans::pkgAcqIndexTrans - Constructor /*{{{*/ |
| 1172 | // --------------------------------------------------------------------- |
| 1173 | /* The Translation file is added to the queue */ |
| 1174 | pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, |
| 1175 | string URI,string URIDesc,string ShortDesc) |
| 1176 | : pkgAcqIndex(Owner, URI, URIDesc, ShortDesc, HashString(), "") |
| 1177 | { |
| 1178 | } |
| 1179 | pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, IndexTarget const *Target, |
| 1180 | HashString const &ExpectedHash, indexRecords const *MetaIndexParser) |
| 1181 | : pkgAcqIndex(Owner, Target, ExpectedHash, MetaIndexParser) |
| 1182 | { |
| 1183 | } |
| 1184 | /*}}}*/ |
| 1185 | // AcqIndexTrans::Custom600Headers - Insert custom request headers /*{{{*/ |
| 1186 | // --------------------------------------------------------------------- |
| 1187 | string pkgAcqIndexTrans::Custom600Headers() |
| 1188 | { |
| 1189 | string Final = _config->FindDir("Dir::State::lists"); |
| 1190 | Final += URItoFileName(RealURI); |
| 1191 | |
| 1192 | struct stat Buf; |
| 1193 | if (stat(Final.c_str(),&Buf) != 0) |
| 1194 | return "\nFail-Ignore: true\nIndex-File: true"; |
| 1195 | return "\nFail-Ignore: true\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 1196 | } |
| 1197 | /*}}}*/ |
| 1198 | // AcqIndexTrans::Failed - Silence failure messages for missing files /*{{{*/ |
| 1199 | // --------------------------------------------------------------------- |
| 1200 | /* */ |
| 1201 | void pkgAcqIndexTrans::Failed(string Message,pkgAcquire::MethodConfig *Cnf) |
| 1202 | { |
| 1203 | size_t const nextExt = CompressionExtension.find(' '); |
| 1204 | if (nextExt != std::string::npos) |
| 1205 | { |
| 1206 | CompressionExtension = CompressionExtension.substr(nextExt+1); |
| 1207 | Init(RealURI, Desc.Description, Desc.ShortDesc); |
| 1208 | Status = StatIdle; |
| 1209 | return; |
| 1210 | } |
| 1211 | |
| 1212 | if (Cnf->LocalOnly == true || |
| 1213 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == false) |
| 1214 | { |
| 1215 | // Ignore this |
| 1216 | Status = StatDone; |
| 1217 | Complete = false; |
| 1218 | Dequeue(); |
| 1219 | return; |
| 1220 | } |
| 1221 | |
| 1222 | Item::Failed(Message,Cnf); |
| 1223 | } |
| 1224 | /*}}}*/ |
| 1225 | pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner, /*{{{*/ |
| 1226 | string URI,string URIDesc,string ShortDesc, |
| 1227 | string MetaIndexURI, string MetaIndexURIDesc, |
| 1228 | string MetaIndexShortDesc, |
| 1229 | const vector<IndexTarget*>* IndexTargets, |
| 1230 | indexRecords* MetaIndexParser) : |
| 1231 | Item(Owner), RealURI(URI), MetaIndexURI(MetaIndexURI), |
| 1232 | MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc), |
| 1233 | MetaIndexParser(MetaIndexParser), IndexTargets(IndexTargets) |
| 1234 | { |
| 1235 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 1236 | DestFile += URItoFileName(URI); |
| 1237 | |
| 1238 | // remove any partial downloaded sig-file in partial/. |
| 1239 | // it may confuse proxies and is too small to warrant a |
| 1240 | // partial download anyway |
| 1241 | unlink(DestFile.c_str()); |
| 1242 | |
| 1243 | // Create the item |
| 1244 | Desc.Description = URIDesc; |
| 1245 | Desc.Owner = this; |
| 1246 | Desc.ShortDesc = ShortDesc; |
| 1247 | Desc.URI = URI; |
| 1248 | |
| 1249 | string Final = _config->FindDir("Dir::State::lists"); |
| 1250 | Final += URItoFileName(RealURI); |
| 1251 | if (RealFileExists(Final) == true) |
| 1252 | { |
| 1253 | // File was already in place. It needs to be re-downloaded/verified |
| 1254 | // because Release might have changed, we do give it a different |
| 1255 | // name than DestFile because otherwise the http method will |
| 1256 | // send If-Range requests and there are too many broken servers |
| 1257 | // out there that do not understand them |
| 1258 | LastGoodSig = DestFile+".reverify"; |
| 1259 | Rename(Final,LastGoodSig); |
| 1260 | } |
| 1261 | |
| 1262 | QueueURI(Desc); |
| 1263 | } |
| 1264 | /*}}}*/ |
| 1265 | pkgAcqMetaSig::~pkgAcqMetaSig() /*{{{*/ |
| 1266 | { |
| 1267 | // if the file was never queued undo file-changes done in the constructor |
| 1268 | if (QueueCounter == 1 && Status == StatIdle && FileSize == 0 && Complete == false && |
| 1269 | LastGoodSig.empty() == false) |
| 1270 | { |
| 1271 | string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); |
| 1272 | if (RealFileExists(Final) == false && RealFileExists(LastGoodSig) == true) |
| 1273 | Rename(LastGoodSig, Final); |
| 1274 | } |
| 1275 | |
| 1276 | } |
| 1277 | /*}}}*/ |
| 1278 | // pkgAcqMetaSig::Custom600Headers - Insert custom request headers /*{{{*/ |
| 1279 | // --------------------------------------------------------------------- |
| 1280 | /* The only header we use is the last-modified header. */ |
| 1281 | string pkgAcqMetaSig::Custom600Headers() |
| 1282 | { |
| 1283 | struct stat Buf; |
| 1284 | if (stat(LastGoodSig.c_str(),&Buf) != 0) |
| 1285 | return "\nIndex-File: true"; |
| 1286 | |
| 1287 | return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 1288 | } |
| 1289 | |
| 1290 | void pkgAcqMetaSig::Done(string Message,unsigned long long Size,string MD5, |
| 1291 | pkgAcquire::MethodConfig *Cfg) |
| 1292 | { |
| 1293 | Item::Done(Message,Size,MD5,Cfg); |
| 1294 | |
| 1295 | string FileName = LookupTag(Message,"Filename"); |
| 1296 | if (FileName.empty() == true) |
| 1297 | { |
| 1298 | Status = StatError; |
| 1299 | ErrorText = "Method gave a blank filename"; |
| 1300 | return; |
| 1301 | } |
| 1302 | |
| 1303 | if (FileName != DestFile) |
| 1304 | { |
| 1305 | // We have to copy it into place |
| 1306 | Local = true; |
| 1307 | Desc.URI = "copy:" + FileName; |
| 1308 | QueueURI(Desc); |
| 1309 | return; |
| 1310 | } |
| 1311 | |
| 1312 | Complete = true; |
| 1313 | |
| 1314 | // put the last known good file back on i-m-s hit (it will |
| 1315 | // be re-verified again) |
| 1316 | // Else do nothing, we have the new file in DestFile then |
| 1317 | if(StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) |
| 1318 | Rename(LastGoodSig, DestFile); |
| 1319 | |
| 1320 | // queue a pkgAcqMetaIndex to be verified against the sig we just retrieved |
| 1321 | new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, |
| 1322 | MetaIndexShortDesc, DestFile, IndexTargets, |
| 1323 | MetaIndexParser); |
| 1324 | |
| 1325 | } |
| 1326 | /*}}}*/ |
| 1327 | void pkgAcqMetaSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/ |
| 1328 | { |
| 1329 | string Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); |
| 1330 | |
| 1331 | // if we get a network error we fail gracefully |
| 1332 | if(Status == StatTransientNetworkError) |
| 1333 | { |
| 1334 | Item::Failed(Message,Cnf); |
| 1335 | // move the sigfile back on transient network failures |
| 1336 | if(FileExists(LastGoodSig)) |
| 1337 | Rename(LastGoodSig,Final); |
| 1338 | |
| 1339 | // set the status back to , Item::Failed likes to reset it |
| 1340 | Status = pkgAcquire::Item::StatTransientNetworkError; |
| 1341 | return; |
| 1342 | } |
| 1343 | |
| 1344 | // Delete any existing sigfile when the acquire failed |
| 1345 | unlink(Final.c_str()); |
| 1346 | |
| 1347 | // queue a pkgAcqMetaIndex with no sigfile |
| 1348 | new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc, |
| 1349 | "", IndexTargets, MetaIndexParser); |
| 1350 | |
| 1351 | if (Cnf->LocalOnly == true || |
| 1352 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == false) |
| 1353 | { |
| 1354 | // Ignore this |
| 1355 | Status = StatDone; |
| 1356 | Complete = false; |
| 1357 | Dequeue(); |
| 1358 | return; |
| 1359 | } |
| 1360 | |
| 1361 | Item::Failed(Message,Cnf); |
| 1362 | } |
| 1363 | /*}}}*/ |
| 1364 | pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire *Owner, /*{{{*/ |
| 1365 | string URI,string URIDesc,string ShortDesc, |
| 1366 | string SigFile, |
| 1367 | const vector<struct IndexTarget*>* IndexTargets, |
| 1368 | indexRecords* MetaIndexParser) : |
| 1369 | Item(Owner), RealURI(URI), SigFile(SigFile), IndexTargets(IndexTargets), |
| 1370 | MetaIndexParser(MetaIndexParser), AuthPass(false), IMSHit(false) |
| 1371 | { |
| 1372 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; |
| 1373 | DestFile += URItoFileName(URI); |
| 1374 | |
| 1375 | // Create the item |
| 1376 | Desc.Description = URIDesc; |
| 1377 | Desc.Owner = this; |
| 1378 | Desc.ShortDesc = ShortDesc; |
| 1379 | Desc.URI = URI; |
| 1380 | |
| 1381 | QueueURI(Desc); |
| 1382 | } |
| 1383 | /*}}}*/ |
| 1384 | // pkgAcqMetaIndex::Custom600Headers - Insert custom request headers /*{{{*/ |
| 1385 | // --------------------------------------------------------------------- |
| 1386 | /* The only header we use is the last-modified header. */ |
| 1387 | string pkgAcqMetaIndex::Custom600Headers() |
| 1388 | { |
| 1389 | string Final = _config->FindDir("Dir::State::lists"); |
| 1390 | Final += URItoFileName(RealURI); |
| 1391 | |
| 1392 | struct stat Buf; |
| 1393 | if (stat(Final.c_str(),&Buf) != 0) |
| 1394 | return "\nIndex-File: true"; |
| 1395 | |
| 1396 | return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 1397 | } |
| 1398 | /*}}}*/ |
| 1399 | void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,string Hash, /*{{{*/ |
| 1400 | pkgAcquire::MethodConfig *Cfg) |
| 1401 | { |
| 1402 | Item::Done(Message,Size,Hash,Cfg); |
| 1403 | |
| 1404 | // MetaIndexes are done in two passes: one to download the |
| 1405 | // metaindex with an appropriate method, and a second to verify it |
| 1406 | // with the gpgv method |
| 1407 | |
| 1408 | if (AuthPass == true) |
| 1409 | { |
| 1410 | AuthDone(Message); |
| 1411 | |
| 1412 | // all cool, move Release file into place |
| 1413 | Complete = true; |
| 1414 | } |
| 1415 | else |
| 1416 | { |
| 1417 | RetrievalDone(Message); |
| 1418 | if (!Complete) |
| 1419 | // Still more retrieving to do |
| 1420 | return; |
| 1421 | |
| 1422 | if (SigFile == "") |
| 1423 | { |
| 1424 | // There was no signature file, so we are finished. Download |
| 1425 | // the indexes and do only hashsum verification if possible |
| 1426 | MetaIndexParser->Load(DestFile); |
| 1427 | QueueIndexes(false); |
| 1428 | } |
| 1429 | else |
| 1430 | { |
| 1431 | // There was a signature file, so pass it to gpgv for |
| 1432 | // verification |
| 1433 | |
| 1434 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) |
| 1435 | std::cerr << "Metaindex acquired, queueing gpg verification (" |
| 1436 | << SigFile << "," << DestFile << ")\n"; |
| 1437 | AuthPass = true; |
| 1438 | Desc.URI = "gpgv:" + SigFile; |
| 1439 | QueueURI(Desc); |
| 1440 | Mode = "gpgv"; |
| 1441 | return; |
| 1442 | } |
| 1443 | } |
| 1444 | |
| 1445 | if (Complete == true) |
| 1446 | { |
| 1447 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 1448 | FinalFile += URItoFileName(RealURI); |
| 1449 | if (SigFile == DestFile) |
| 1450 | SigFile = FinalFile; |
| 1451 | Rename(DestFile,FinalFile); |
| 1452 | chmod(FinalFile.c_str(),0644); |
| 1453 | DestFile = FinalFile; |
| 1454 | } |
| 1455 | } |
| 1456 | /*}}}*/ |
| 1457 | void pkgAcqMetaIndex::RetrievalDone(string Message) /*{{{*/ |
| 1458 | { |
| 1459 | // We have just finished downloading a Release file (it is not |
| 1460 | // verified yet) |
| 1461 | |
| 1462 | string FileName = LookupTag(Message,"Filename"); |
| 1463 | if (FileName.empty() == true) |
| 1464 | { |
| 1465 | Status = StatError; |
| 1466 | ErrorText = "Method gave a blank filename"; |
| 1467 | return; |
| 1468 | } |
| 1469 | |
| 1470 | if (FileName != DestFile) |
| 1471 | { |
| 1472 | Local = true; |
| 1473 | Desc.URI = "copy:" + FileName; |
| 1474 | QueueURI(Desc); |
| 1475 | return; |
| 1476 | } |
| 1477 | |
| 1478 | // make sure to verify against the right file on I-M-S hit |
| 1479 | IMSHit = StringToBool(LookupTag(Message,"IMS-Hit"),false); |
| 1480 | if(IMSHit) |
| 1481 | { |
| 1482 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 1483 | FinalFile += URItoFileName(RealURI); |
| 1484 | if (SigFile == DestFile) |
| 1485 | { |
| 1486 | SigFile = FinalFile; |
| 1487 | // constructor of pkgAcqMetaClearSig moved it out of the way, |
| 1488 | // now move it back in on IMS hit for the 'old' file |
| 1489 | string const OldClearSig = DestFile + ".reverify"; |
| 1490 | if (RealFileExists(OldClearSig) == true) |
| 1491 | Rename(OldClearSig, FinalFile); |
| 1492 | } |
| 1493 | DestFile = FinalFile; |
| 1494 | } |
| 1495 | Complete = true; |
| 1496 | } |
| 1497 | /*}}}*/ |
| 1498 | void pkgAcqMetaIndex::AuthDone(string Message) /*{{{*/ |
| 1499 | { |
| 1500 | // At this point, the gpgv method has succeeded, so there is a |
| 1501 | // valid signature from a key in the trusted keyring. We |
| 1502 | // perform additional verification of its contents, and use them |
| 1503 | // to verify the indexes we are about to download |
| 1504 | |
| 1505 | if (!MetaIndexParser->Load(DestFile)) |
| 1506 | { |
| 1507 | Status = StatAuthError; |
| 1508 | ErrorText = MetaIndexParser->ErrorText; |
| 1509 | return; |
| 1510 | } |
| 1511 | |
| 1512 | if (!VerifyVendor(Message)) |
| 1513 | { |
| 1514 | return; |
| 1515 | } |
| 1516 | |
| 1517 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) |
| 1518 | std::cerr << "Signature verification succeeded: " |
| 1519 | << DestFile << std::endl; |
| 1520 | |
| 1521 | // Download further indexes with verification |
| 1522 | QueueIndexes(true); |
| 1523 | |
| 1524 | // is it a clearsigned MetaIndex file? |
| 1525 | if (DestFile == SigFile) |
| 1526 | return; |
| 1527 | |
| 1528 | // Done, move signature file into position |
| 1529 | string VerifiedSigFile = _config->FindDir("Dir::State::lists") + |
| 1530 | URItoFileName(RealURI) + ".gpg"; |
| 1531 | Rename(SigFile,VerifiedSigFile); |
| 1532 | chmod(VerifiedSigFile.c_str(),0644); |
| 1533 | } |
| 1534 | /*}}}*/ |
| 1535 | void pkgAcqMetaIndex::QueueIndexes(bool verify) /*{{{*/ |
| 1536 | { |
| 1537 | #if 0 |
| 1538 | /* Reject invalid, existing Release files (LP: #346386) (Closes: #627642) |
| 1539 | * FIXME: Disabled; it breaks unsigned repositories without hashes */ |
| 1540 | if (!verify && FileExists(DestFile) && !MetaIndexParser->Load(DestFile)) |
| 1541 | { |
| 1542 | Status = StatError; |
| 1543 | ErrorText = MetaIndexParser->ErrorText; |
| 1544 | return; |
| 1545 | } |
| 1546 | #endif |
| 1547 | bool transInRelease = false; |
| 1548 | { |
| 1549 | std::vector<std::string> const keys = MetaIndexParser->MetaKeys(); |
| 1550 | for (std::vector<std::string>::const_iterator k = keys.begin(); k != keys.end(); ++k) |
| 1551 | // FIXME: Feels wrong to check for hardcoded string here, but what should we do else… |
| 1552 | if (k->find("Translation-") != std::string::npos) |
| 1553 | { |
| 1554 | transInRelease = true; |
| 1555 | break; |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | for (vector <struct IndexTarget*>::const_iterator Target = IndexTargets->begin(); |
| 1560 | Target != IndexTargets->end(); |
| 1561 | ++Target) |
| 1562 | { |
| 1563 | HashString ExpectedIndexHash; |
| 1564 | const indexRecords::checkSum *Record = MetaIndexParser->Lookup((*Target)->MetaKey); |
| 1565 | bool compressedAvailable = false; |
| 1566 | if (Record == NULL) |
| 1567 | { |
| 1568 | if ((*Target)->IsOptional() == true) |
| 1569 | { |
| 1570 | std::vector<std::string> types = APT::Configuration::getCompressionTypes(); |
| 1571 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) |
| 1572 | if (MetaIndexParser->Exists((*Target)->MetaKey + "." + *t) == true) |
| 1573 | { |
| 1574 | compressedAvailable = true; |
| 1575 | break; |
| 1576 | } |
| 1577 | } |
| 1578 | else if (verify == true) |
| 1579 | { |
| 1580 | Status = StatAuthError; |
| 1581 | strprintf(ErrorText, _("Unable to find expected entry '%s' in Release file (Wrong sources.list entry or malformed file)"), (*Target)->MetaKey.c_str()); |
| 1582 | return; |
| 1583 | } |
| 1584 | } |
| 1585 | else |
| 1586 | { |
| 1587 | ExpectedIndexHash = Record->Hash; |
| 1588 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) |
| 1589 | { |
| 1590 | std::cerr << "Queueing: " << (*Target)->URI << std::endl; |
| 1591 | std::cerr << "Expected Hash: " << ExpectedIndexHash.toStr() << std::endl; |
| 1592 | std::cerr << "For: " << Record->MetaKeyFilename << std::endl; |
| 1593 | } |
| 1594 | if (verify == true && ExpectedIndexHash.empty() == true && (*Target)->IsOptional() == false) |
| 1595 | { |
| 1596 | Status = StatAuthError; |
| 1597 | strprintf(ErrorText, _("Unable to find hash sum for '%s' in Release file"), (*Target)->MetaKey.c_str()); |
| 1598 | return; |
| 1599 | } |
| 1600 | } |
| 1601 | |
| 1602 | if ((*Target)->IsOptional() == true) |
| 1603 | { |
| 1604 | if ((*Target)->IsSubIndex() == true) |
| 1605 | new pkgAcqSubIndex(Owner, (*Target)->URI, (*Target)->Description, |
| 1606 | (*Target)->ShortDesc, ExpectedIndexHash); |
| 1607 | else if (transInRelease == false || Record != NULL || compressedAvailable == true) |
| 1608 | { |
| 1609 | if (_config->FindB("Acquire::PDiffs",true) == true && transInRelease == true && |
| 1610 | MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true) |
| 1611 | new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description, |
| 1612 | (*Target)->ShortDesc, ExpectedIndexHash); |
| 1613 | else |
| 1614 | new pkgAcqIndexTrans(Owner, *Target, ExpectedIndexHash, MetaIndexParser); |
| 1615 | } |
| 1616 | continue; |
| 1617 | } |
| 1618 | |
| 1619 | /* Queue Packages file (either diff or full packages files, depending |
| 1620 | on the users option) - we also check if the PDiff Index file is listed |
| 1621 | in the Meta-Index file. Ideal would be if pkgAcqDiffIndex would test this |
| 1622 | instead, but passing the required info to it is to much hassle */ |
| 1623 | if(_config->FindB("Acquire::PDiffs",true) == true && (verify == false || |
| 1624 | MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true)) |
| 1625 | new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description, |
| 1626 | (*Target)->ShortDesc, ExpectedIndexHash); |
| 1627 | else |
| 1628 | new pkgAcqIndex(Owner, *Target, ExpectedIndexHash, MetaIndexParser); |
| 1629 | } |
| 1630 | } |
| 1631 | /*}}}*/ |
| 1632 | bool pkgAcqMetaIndex::VerifyVendor(string Message) /*{{{*/ |
| 1633 | { |
| 1634 | string::size_type pos; |
| 1635 | |
| 1636 | // check for missing sigs (that where not fatal because otherwise we had |
| 1637 | // bombed earlier) |
| 1638 | string missingkeys; |
| 1639 | string msg = _("There is no public key available for the " |
| 1640 | "following key IDs:\n"); |
| 1641 | pos = Message.find("NO_PUBKEY "); |
| 1642 | if (pos != std::string::npos) |
| 1643 | { |
| 1644 | string::size_type start = pos+strlen("NO_PUBKEY "); |
| 1645 | string Fingerprint = Message.substr(start, Message.find("\n")-start); |
| 1646 | missingkeys += (Fingerprint); |
| 1647 | } |
| 1648 | if(!missingkeys.empty()) |
| 1649 | _error->Warning("%s", (msg + missingkeys).c_str()); |
| 1650 | |
| 1651 | string Transformed = MetaIndexParser->GetExpectedDist(); |
| 1652 | |
| 1653 | if (Transformed == "../project/experimental") |
| 1654 | { |
| 1655 | Transformed = "experimental"; |
| 1656 | } |
| 1657 | |
| 1658 | pos = Transformed.rfind('/'); |
| 1659 | if (pos != string::npos) |
| 1660 | { |
| 1661 | Transformed = Transformed.substr(0, pos); |
| 1662 | } |
| 1663 | |
| 1664 | if (Transformed == ".") |
| 1665 | { |
| 1666 | Transformed = ""; |
| 1667 | } |
| 1668 | |
| 1669 | if (_config->FindB("Acquire::Check-Valid-Until", true) == true && |
| 1670 | MetaIndexParser->GetValidUntil() > 0) { |
| 1671 | time_t const invalid_since = time(NULL) - MetaIndexParser->GetValidUntil(); |
| 1672 | if (invalid_since > 0) |
| 1673 | // TRANSLATOR: The first %s is the URL of the bad Release file, the second is |
| 1674 | // the time since then the file is invalid - formated in the same way as in |
| 1675 | // the download progress display (e.g. 7d 3h 42min 1s) |
| 1676 | return _error->Error( |
| 1677 | _("Release file for %s is expired (invalid since %s). " |
| 1678 | "Updates for this repository will not be applied."), |
| 1679 | RealURI.c_str(), TimeToStr(invalid_since).c_str()); |
| 1680 | } |
| 1681 | |
| 1682 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) |
| 1683 | { |
| 1684 | std::cerr << "Got Codename: " << MetaIndexParser->GetDist() << std::endl; |
| 1685 | std::cerr << "Expecting Dist: " << MetaIndexParser->GetExpectedDist() << std::endl; |
| 1686 | std::cerr << "Transformed Dist: " << Transformed << std::endl; |
| 1687 | } |
| 1688 | |
| 1689 | if (MetaIndexParser->CheckDist(Transformed) == false) |
| 1690 | { |
| 1691 | // This might become fatal one day |
| 1692 | // Status = StatAuthError; |
| 1693 | // ErrorText = "Conflicting distribution; expected " |
| 1694 | // + MetaIndexParser->GetExpectedDist() + " but got " |
| 1695 | // + MetaIndexParser->GetDist(); |
| 1696 | // return false; |
| 1697 | if (!Transformed.empty()) |
| 1698 | { |
| 1699 | _error->Warning(_("Conflicting distribution: %s (expected %s but got %s)"), |
| 1700 | Desc.Description.c_str(), |
| 1701 | Transformed.c_str(), |
| 1702 | MetaIndexParser->GetDist().c_str()); |
| 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | return true; |
| 1707 | } |
| 1708 | /*}}}*/ |
| 1709 | // pkgAcqMetaIndex::Failed - no Release file present or no signature file present /*{{{*/ |
| 1710 | // --------------------------------------------------------------------- |
| 1711 | /* */ |
| 1712 | void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/) |
| 1713 | { |
| 1714 | if (AuthPass == true) |
| 1715 | { |
| 1716 | // gpgv method failed, if we have a good signature |
| 1717 | string LastGoodSigFile = _config->FindDir("Dir::State::lists").append("partial/").append(URItoFileName(RealURI)); |
| 1718 | if (DestFile != SigFile) |
| 1719 | LastGoodSigFile.append(".gpg"); |
| 1720 | LastGoodSigFile.append(".reverify"); |
| 1721 | |
| 1722 | if(FileExists(LastGoodSigFile)) |
| 1723 | { |
| 1724 | string VerifiedSigFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); |
| 1725 | if (DestFile != SigFile) |
| 1726 | VerifiedSigFile.append(".gpg"); |
| 1727 | Rename(LastGoodSigFile, VerifiedSigFile); |
| 1728 | Status = StatTransientNetworkError; |
| 1729 | _error->Warning(_("An error occurred during the signature " |
| 1730 | "verification. The repository is not updated " |
| 1731 | "and the previous index files will be used. " |
| 1732 | "GPG error: %s: %s\n"), |
| 1733 | Desc.Description.c_str(), |
| 1734 | LookupTag(Message,"Message").c_str()); |
| 1735 | RunScripts("APT::Update::Auth-Failure"); |
| 1736 | return; |
| 1737 | } else if (LookupTag(Message,"Message").find("NODATA") != string::npos) { |
| 1738 | /* Invalid signature file, reject (LP: #346386) (Closes: #627642) */ |
| 1739 | _error->Error(_("GPG error: %s: %s"), |
| 1740 | Desc.Description.c_str(), |
| 1741 | LookupTag(Message,"Message").c_str()); |
| 1742 | return; |
| 1743 | } else { |
| 1744 | _error->Warning(_("GPG error: %s: %s"), |
| 1745 | Desc.Description.c_str(), |
| 1746 | LookupTag(Message,"Message").c_str()); |
| 1747 | } |
| 1748 | // gpgv method failed |
| 1749 | ReportMirrorFailure("GPGFailure"); |
| 1750 | } |
| 1751 | |
| 1752 | /* Always move the meta index, even if gpgv failed. This ensures |
| 1753 | * that PackageFile objects are correctly filled in */ |
| 1754 | if (FileExists(DestFile)) { |
| 1755 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 1756 | FinalFile += URItoFileName(RealURI); |
| 1757 | /* InRelease files become Release files, otherwise |
| 1758 | * they would be considered as trusted later on */ |
| 1759 | if (SigFile == DestFile) { |
| 1760 | RealURI = RealURI.replace(RealURI.rfind("InRelease"), 9, |
| 1761 | "Release"); |
| 1762 | FinalFile = FinalFile.replace(FinalFile.rfind("InRelease"), 9, |
| 1763 | "Release"); |
| 1764 | SigFile = FinalFile; |
| 1765 | } |
| 1766 | Rename(DestFile,FinalFile); |
| 1767 | chmod(FinalFile.c_str(),0644); |
| 1768 | |
| 1769 | DestFile = FinalFile; |
| 1770 | } |
| 1771 | |
| 1772 | // No Release file was present, or verification failed, so fall |
| 1773 | // back to queueing Packages files without verification |
| 1774 | QueueIndexes(false); |
| 1775 | } |
| 1776 | /*}}}*/ |
| 1777 | pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire *Owner, /*{{{*/ |
| 1778 | string const &URI, string const &URIDesc, string const &ShortDesc, |
| 1779 | string const &MetaIndexURI, string const &MetaIndexURIDesc, string const &MetaIndexShortDesc, |
| 1780 | string const &MetaSigURI, string const &MetaSigURIDesc, string const &MetaSigShortDesc, |
| 1781 | const vector<struct IndexTarget*>* IndexTargets, |
| 1782 | indexRecords* MetaIndexParser) : |
| 1783 | pkgAcqMetaIndex(Owner, URI, URIDesc, ShortDesc, "", IndexTargets, MetaIndexParser), |
| 1784 | MetaIndexURI(MetaIndexURI), MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc), |
| 1785 | MetaSigURI(MetaSigURI), MetaSigURIDesc(MetaSigURIDesc), MetaSigShortDesc(MetaSigShortDesc) |
| 1786 | { |
| 1787 | SigFile = DestFile; |
| 1788 | |
| 1789 | // keep the old InRelease around in case of transistent network errors |
| 1790 | string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); |
| 1791 | if (RealFileExists(Final) == true) |
| 1792 | { |
| 1793 | string const LastGoodSig = DestFile + ".reverify"; |
| 1794 | Rename(Final,LastGoodSig); |
| 1795 | } |
| 1796 | } |
| 1797 | /*}}}*/ |
| 1798 | pkgAcqMetaClearSig::~pkgAcqMetaClearSig() /*{{{*/ |
| 1799 | { |
| 1800 | // if the file was never queued undo file-changes done in the constructor |
| 1801 | if (QueueCounter == 1 && Status == StatIdle && FileSize == 0 && Complete == false) |
| 1802 | { |
| 1803 | string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); |
| 1804 | string const LastGoodSig = DestFile + ".reverify"; |
| 1805 | if (RealFileExists(Final) == false && RealFileExists(LastGoodSig) == true) |
| 1806 | Rename(LastGoodSig, Final); |
| 1807 | } |
| 1808 | } |
| 1809 | /*}}}*/ |
| 1810 | // pkgAcqMetaClearSig::Custom600Headers - Insert custom request headers /*{{{*/ |
| 1811 | // --------------------------------------------------------------------- |
| 1812 | // FIXME: this can go away once the InRelease file is used widely |
| 1813 | string pkgAcqMetaClearSig::Custom600Headers() |
| 1814 | { |
| 1815 | string Final = _config->FindDir("Dir::State::lists"); |
| 1816 | Final += URItoFileName(RealURI); |
| 1817 | |
| 1818 | struct stat Buf; |
| 1819 | if (stat(Final.c_str(),&Buf) != 0) |
| 1820 | { |
| 1821 | Final = DestFile + ".reverify"; |
| 1822 | if (stat(Final.c_str(),&Buf) != 0) |
| 1823 | return "\nIndex-File: true\nFail-Ignore: true\n"; |
| 1824 | } |
| 1825 | |
| 1826 | return "\nIndex-File: true\nFail-Ignore: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); |
| 1827 | } |
| 1828 | /*}}}*/ |
| 1829 | void pkgAcqMetaClearSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/ |
| 1830 | { |
| 1831 | if (AuthPass == false) |
| 1832 | { |
| 1833 | // Remove the 'old' InRelease file if we try Release.gpg now as otherwise |
| 1834 | // the file will stay around and gives a false-auth impression (CVE-2012-0214) |
| 1835 | string FinalFile = _config->FindDir("Dir::State::lists"); |
| 1836 | FinalFile.append(URItoFileName(RealURI)); |
| 1837 | if (FileExists(FinalFile)) |
| 1838 | unlink(FinalFile.c_str()); |
| 1839 | |
| 1840 | new pkgAcqMetaSig(Owner, |
| 1841 | MetaSigURI, MetaSigURIDesc, MetaSigShortDesc, |
| 1842 | MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc, |
| 1843 | IndexTargets, MetaIndexParser); |
| 1844 | if (Cnf->LocalOnly == true || |
| 1845 | StringToBool(LookupTag(Message, "Transient-Failure"), false) == false) |
| 1846 | Dequeue(); |
| 1847 | } |
| 1848 | else |
| 1849 | pkgAcqMetaIndex::Failed(Message, Cnf); |
| 1850 | } |
| 1851 | /*}}}*/ |
| 1852 | // AcqArchive::AcqArchive - Constructor /*{{{*/ |
| 1853 | // --------------------------------------------------------------------- |
| 1854 | /* This just sets up the initial fetch environment and queues the first |
| 1855 | possibilitiy */ |
| 1856 | pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources, |
| 1857 | pkgRecords *Recs,pkgCache::VerIterator const &Version, |
| 1858 | string &StoreFilename) : |
| 1859 | Item(Owner), Version(Version), Sources(Sources), Recs(Recs), |
| 1860 | StoreFilename(StoreFilename), Vf(Version.FileList()), |
| 1861 | Trusted(false) |
| 1862 | { |
| 1863 | Retries = _config->FindI("Acquire::Retries",0); |
| 1864 | |
| 1865 | if (Version.Arch() == 0) |
| 1866 | { |
| 1867 | _error->Error(_("I wasn't able to locate a file for the %s package. " |
| 1868 | "This might mean you need to manually fix this package. " |
| 1869 | "(due to missing arch)"), |
| 1870 | Version.ParentPkg().FullName().c_str()); |
| 1871 | return; |
| 1872 | } |
| 1873 | |
| 1874 | /* We need to find a filename to determine the extension. We make the |
| 1875 | assumption here that all the available sources for this version share |
| 1876 | the same extension.. */ |
| 1877 | // Skip not source sources, they do not have file fields. |
| 1878 | for (; Vf.end() == false; ++Vf) |
| 1879 | { |
| 1880 | if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0) |
| 1881 | continue; |
| 1882 | break; |
| 1883 | } |
| 1884 | |
| 1885 | // Does not really matter here.. we are going to fail out below |
| 1886 | if (Vf.end() != true) |
| 1887 | { |
| 1888 | // If this fails to get a file name we will bomb out below. |
| 1889 | pkgRecords::Parser &Parse = Recs->Lookup(Vf); |
| 1890 | if (_error->PendingError() == true) |
| 1891 | return; |
| 1892 | |
| 1893 | // Generate the final file name as: package_version_arch.foo |
| 1894 | StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' + |
| 1895 | QuoteString(Version.VerStr(),"_:") + '_' + |
| 1896 | QuoteString(Version.Arch(),"_:.") + |
| 1897 | "." + flExtension(Parse.FileName()); |
| 1898 | } |
| 1899 | |
| 1900 | // check if we have one trusted source for the package. if so, switch |
| 1901 | // to "TrustedOnly" mode - but only if not in AllowUnauthenticated mode |
| 1902 | bool const allowUnauth = _config->FindB("APT::Get::AllowUnauthenticated", false); |
| 1903 | bool const debugAuth = _config->FindB("Debug::pkgAcquire::Auth", false); |
| 1904 | bool seenUntrusted = false; |
| 1905 | for (pkgCache::VerFileIterator i = Version.FileList(); i.end() == false; ++i) |
| 1906 | { |
| 1907 | pkgIndexFile *Index; |
| 1908 | if (Sources->FindIndex(i.File(),Index) == false) |
| 1909 | continue; |
| 1910 | |
| 1911 | if (debugAuth == true) |
| 1912 | std::cerr << "Checking index: " << Index->Describe() |
| 1913 | << "(Trusted=" << Index->IsTrusted() << ")" << std::endl; |
| 1914 | |
| 1915 | if (Index->IsTrusted() == true) |
| 1916 | { |
| 1917 | Trusted = true; |
| 1918 | if (allowUnauth == false) |
| 1919 | break; |
| 1920 | } |
| 1921 | else |
| 1922 | seenUntrusted = true; |
| 1923 | } |
| 1924 | |
| 1925 | // "allow-unauthenticated" restores apts old fetching behaviour |
| 1926 | // that means that e.g. unauthenticated file:// uris are higher |
| 1927 | // priority than authenticated http:// uris |
| 1928 | if (allowUnauth == true && seenUntrusted == true) |
| 1929 | Trusted = false; |
| 1930 | |
| 1931 | // Select a source |
| 1932 | if (QueueNext() == false && _error->PendingError() == false) |
| 1933 | _error->Error(_("Can't find a source to download version '%s' of '%s'"), |
| 1934 | Version.VerStr(), Version.ParentPkg().FullName(false).c_str()); |
| 1935 | } |
| 1936 | /*}}}*/ |
| 1937 | // AcqArchive::QueueNext - Queue the next file source /*{{{*/ |
| 1938 | // --------------------------------------------------------------------- |
| 1939 | /* This queues the next available file version for download. It checks if |
| 1940 | the archive is already available in the cache and stashs the MD5 for |
| 1941 | checking later. */ |
| 1942 | bool pkgAcqArchive::QueueNext() |
| 1943 | { |
| 1944 | string const ForceHash = _config->Find("Acquire::ForceHash"); |
| 1945 | for (; Vf.end() == false; ++Vf) |
| 1946 | { |
| 1947 | // Ignore not source sources |
| 1948 | if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0) |
| 1949 | continue; |
| 1950 | |
| 1951 | // Try to cross match against the source list |
| 1952 | pkgIndexFile *Index; |
| 1953 | if (Sources->FindIndex(Vf.File(),Index) == false) |
| 1954 | continue; |
| 1955 | |
| 1956 | // only try to get a trusted package from another source if that source |
| 1957 | // is also trusted |
| 1958 | if(Trusted && !Index->IsTrusted()) |
| 1959 | continue; |
| 1960 | |
| 1961 | // Grab the text package record |
| 1962 | pkgRecords::Parser &Parse = Recs->Lookup(Vf); |
| 1963 | if (_error->PendingError() == true) |
| 1964 | return false; |
| 1965 | |
| 1966 | string PkgFile = Parse.FileName(); |
| 1967 | if (ForceHash.empty() == false) |
| 1968 | { |
| 1969 | if(stringcasecmp(ForceHash, "sha512") == 0) |
| 1970 | ExpectedHash = HashString("SHA512", Parse.SHA512Hash()); |
| 1971 | else if(stringcasecmp(ForceHash, "sha256") == 0) |
| 1972 | ExpectedHash = HashString("SHA256", Parse.SHA256Hash()); |
| 1973 | else if (stringcasecmp(ForceHash, "sha1") == 0) |
| 1974 | ExpectedHash = HashString("SHA1", Parse.SHA1Hash()); |
| 1975 | else |
| 1976 | ExpectedHash = HashString("MD5Sum", Parse.MD5Hash()); |
| 1977 | } |
| 1978 | else |
| 1979 | { |
| 1980 | string Hash; |
| 1981 | if ((Hash = Parse.SHA512Hash()).empty() == false) |
| 1982 | ExpectedHash = HashString("SHA512", Hash); |
| 1983 | else if ((Hash = Parse.SHA256Hash()).empty() == false) |
| 1984 | ExpectedHash = HashString("SHA256", Hash); |
| 1985 | else if ((Hash = Parse.SHA1Hash()).empty() == false) |
| 1986 | ExpectedHash = HashString("SHA1", Hash); |
| 1987 | else |
| 1988 | ExpectedHash = HashString("MD5Sum", Parse.MD5Hash()); |
| 1989 | } |
| 1990 | if (PkgFile.empty() == true) |
| 1991 | return _error->Error(_("The package index files are corrupted. No Filename: " |
| 1992 | "field for package %s."), |
| 1993 | Version.ParentPkg().Name()); |
| 1994 | |
| 1995 | Desc.URI = Index->ArchiveURI(PkgFile); |
| 1996 | Desc.Description = Index->ArchiveInfo(Version); |
| 1997 | Desc.Owner = this; |
| 1998 | Desc.ShortDesc = Version.ParentPkg().FullName(true); |
| 1999 | |
| 2000 | // See if we already have the file. (Legacy filenames) |
| 2001 | FileSize = Version->Size; |
| 2002 | string FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(PkgFile); |
| 2003 | struct stat Buf; |
| 2004 | if (stat(FinalFile.c_str(),&Buf) == 0) |
| 2005 | { |
| 2006 | // Make sure the size matches |
| 2007 | if ((unsigned long long)Buf.st_size == Version->Size) |
| 2008 | { |
| 2009 | Complete = true; |
| 2010 | Local = true; |
| 2011 | Status = StatDone; |
| 2012 | StoreFilename = DestFile = FinalFile; |
| 2013 | return true; |
| 2014 | } |
| 2015 | |
| 2016 | /* Hmm, we have a file and its size does not match, this means it is |
| 2017 | an old style mismatched arch */ |
| 2018 | unlink(FinalFile.c_str()); |
| 2019 | } |
| 2020 | |
| 2021 | // Check it again using the new style output filenames |
| 2022 | FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(StoreFilename); |
| 2023 | if (stat(FinalFile.c_str(),&Buf) == 0) |
| 2024 | { |
| 2025 | // Make sure the size matches |
| 2026 | if ((unsigned long long)Buf.st_size == Version->Size) |
| 2027 | { |
| 2028 | Complete = true; |
| 2029 | Local = true; |
| 2030 | Status = StatDone; |
| 2031 | StoreFilename = DestFile = FinalFile; |
| 2032 | return true; |
| 2033 | } |
| 2034 | |
| 2035 | /* Hmm, we have a file and its size does not match, this shouldn't |
| 2036 | happen.. */ |
| 2037 | unlink(FinalFile.c_str()); |
| 2038 | } |
| 2039 | |
| 2040 | DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename); |
| 2041 | |
| 2042 | // Check the destination file |
| 2043 | if (stat(DestFile.c_str(),&Buf) == 0) |
| 2044 | { |
| 2045 | // Hmm, the partial file is too big, erase it |
| 2046 | if ((unsigned long long)Buf.st_size > Version->Size) |
| 2047 | unlink(DestFile.c_str()); |
| 2048 | else |
| 2049 | PartialSize = Buf.st_size; |
| 2050 | } |
| 2051 | |
| 2052 | // Disables download of archives - useful if no real installation follows, |
| 2053 | // e.g. if we are just interested in proposed installation order |
| 2054 | if (_config->FindB("Debug::pkgAcqArchive::NoQueue", false) == true) |
| 2055 | { |
| 2056 | Complete = true; |
| 2057 | Local = true; |
| 2058 | Status = StatDone; |
| 2059 | StoreFilename = DestFile = FinalFile; |
| 2060 | return true; |
| 2061 | } |
| 2062 | |
| 2063 | // Create the item |
| 2064 | Local = false; |
| 2065 | QueueURI(Desc); |
| 2066 | |
| 2067 | ++Vf; |
| 2068 | return true; |
| 2069 | } |
| 2070 | return false; |
| 2071 | } |
| 2072 | /*}}}*/ |
| 2073 | // AcqArchive::Done - Finished fetching /*{{{*/ |
| 2074 | // --------------------------------------------------------------------- |
| 2075 | /* */ |
| 2076 | void pkgAcqArchive::Done(string Message,unsigned long long Size,string CalcHash, |
| 2077 | pkgAcquire::MethodConfig *Cfg) |
| 2078 | { |
| 2079 | Item::Done(Message,Size,CalcHash,Cfg); |
| 2080 | |
| 2081 | // Check the size |
| 2082 | if (Size != Version->Size) |
| 2083 | { |
| 2084 | RenameOnError(SizeMismatch); |
| 2085 | return; |
| 2086 | } |
| 2087 | |
| 2088 | // Check the hash |
| 2089 | if(ExpectedHash.toStr() != CalcHash) |
| 2090 | { |
| 2091 | RenameOnError(HashSumMismatch); |
| 2092 | return; |
| 2093 | } |
| 2094 | |
| 2095 | // Grab the output filename |
| 2096 | string FileName = LookupTag(Message,"Filename"); |
| 2097 | if (FileName.empty() == true) |
| 2098 | { |
| 2099 | Status = StatError; |
| 2100 | ErrorText = "Method gave a blank filename"; |
| 2101 | return; |
| 2102 | } |
| 2103 | |
| 2104 | Complete = true; |
| 2105 | |
| 2106 | // Reference filename |
| 2107 | if (FileName != DestFile) |
| 2108 | { |
| 2109 | StoreFilename = DestFile = FileName; |
| 2110 | Local = true; |
| 2111 | return; |
| 2112 | } |
| 2113 | |
| 2114 | // Done, move it into position |
| 2115 | string FinalFile = _config->FindDir("Dir::Cache::Archives"); |
| 2116 | FinalFile += flNotDir(StoreFilename); |
| 2117 | Rename(DestFile,FinalFile); |
| 2118 | |
| 2119 | StoreFilename = DestFile = FinalFile; |
| 2120 | Complete = true; |
| 2121 | } |
| 2122 | /*}}}*/ |
| 2123 | // AcqArchive::Failed - Failure handler /*{{{*/ |
| 2124 | // --------------------------------------------------------------------- |
| 2125 | /* Here we try other sources */ |
| 2126 | void pkgAcqArchive::Failed(string Message,pkgAcquire::MethodConfig *Cnf) |
| 2127 | { |
| 2128 | ErrorText = LookupTag(Message,"Message"); |
| 2129 | |
| 2130 | /* We don't really want to retry on failed media swaps, this prevents |
| 2131 | that. An interesting observation is that permanent failures are not |
| 2132 | recorded. */ |
| 2133 | if (Cnf->Removable == true && |
| 2134 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) |
| 2135 | { |
| 2136 | // Vf = Version.FileList(); |
| 2137 | while (Vf.end() == false) ++Vf; |
| 2138 | StoreFilename = string(); |
| 2139 | Item::Failed(Message,Cnf); |
| 2140 | return; |
| 2141 | } |
| 2142 | |
| 2143 | if (QueueNext() == false) |
| 2144 | { |
| 2145 | // This is the retry counter |
| 2146 | if (Retries != 0 && |
| 2147 | Cnf->LocalOnly == false && |
| 2148 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) |
| 2149 | { |
| 2150 | Retries--; |
| 2151 | Vf = Version.FileList(); |
| 2152 | if (QueueNext() == true) |
| 2153 | return; |
| 2154 | } |
| 2155 | |
| 2156 | StoreFilename = string(); |
| 2157 | Item::Failed(Message,Cnf); |
| 2158 | } |
| 2159 | } |
| 2160 | /*}}}*/ |
| 2161 | // AcqArchive::IsTrusted - Determine whether this archive comes from a trusted source /*{{{*/ |
| 2162 | // --------------------------------------------------------------------- |
| 2163 | APT_PURE bool pkgAcqArchive::IsTrusted() |
| 2164 | { |
| 2165 | return Trusted; |
| 2166 | } |
| 2167 | /*}}}*/ |
| 2168 | // AcqArchive::Finished - Fetching has finished, tidy up /*{{{*/ |
| 2169 | // --------------------------------------------------------------------- |
| 2170 | /* */ |
| 2171 | void pkgAcqArchive::Finished() |
| 2172 | { |
| 2173 | if (Status == pkgAcquire::Item::StatDone && |
| 2174 | Complete == true) |
| 2175 | return; |
| 2176 | StoreFilename = string(); |
| 2177 | } |
| 2178 | /*}}}*/ |
| 2179 | // AcqFile::pkgAcqFile - Constructor /*{{{*/ |
| 2180 | // --------------------------------------------------------------------- |
| 2181 | /* The file is added to the queue */ |
| 2182 | pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string Hash, |
| 2183 | unsigned long long Size,string Dsc,string ShortDesc, |
| 2184 | const string &DestDir, const string &DestFilename, |
| 2185 | bool IsIndexFile) : |
| 2186 | Item(Owner), ExpectedHash(Hash), IsIndexFile(IsIndexFile) |
| 2187 | { |
| 2188 | Retries = _config->FindI("Acquire::Retries",0); |
| 2189 | |
| 2190 | if(!DestFilename.empty()) |
| 2191 | DestFile = DestFilename; |
| 2192 | else if(!DestDir.empty()) |
| 2193 | DestFile = DestDir + "/" + flNotDir(URI); |
| 2194 | else |
| 2195 | DestFile = flNotDir(URI); |
| 2196 | |
| 2197 | // Create the item |
| 2198 | Desc.URI = URI; |
| 2199 | Desc.Description = Dsc; |
| 2200 | Desc.Owner = this; |
| 2201 | |
| 2202 | // Set the short description to the archive component |
| 2203 | Desc.ShortDesc = ShortDesc; |
| 2204 | |
| 2205 | // Get the transfer sizes |
| 2206 | FileSize = Size; |
| 2207 | struct stat Buf; |
| 2208 | if (stat(DestFile.c_str(),&Buf) == 0) |
| 2209 | { |
| 2210 | // Hmm, the partial file is too big, erase it |
| 2211 | if ((Size > 0) && (unsigned long long)Buf.st_size > Size) |
| 2212 | unlink(DestFile.c_str()); |
| 2213 | else |
| 2214 | PartialSize = Buf.st_size; |
| 2215 | } |
| 2216 | |
| 2217 | QueueURI(Desc); |
| 2218 | } |
| 2219 | /*}}}*/ |
| 2220 | // AcqFile::Done - Item downloaded OK /*{{{*/ |
| 2221 | // --------------------------------------------------------------------- |
| 2222 | /* */ |
| 2223 | void pkgAcqFile::Done(string Message,unsigned long long Size,string CalcHash, |
| 2224 | pkgAcquire::MethodConfig *Cnf) |
| 2225 | { |
| 2226 | Item::Done(Message,Size,CalcHash,Cnf); |
| 2227 | |
| 2228 | // Check the hash |
| 2229 | if(!ExpectedHash.empty() && ExpectedHash.toStr() != CalcHash) |
| 2230 | { |
| 2231 | RenameOnError(HashSumMismatch); |
| 2232 | return; |
| 2233 | } |
| 2234 | |
| 2235 | string FileName = LookupTag(Message,"Filename"); |
| 2236 | if (FileName.empty() == true) |
| 2237 | { |
| 2238 | Status = StatError; |
| 2239 | ErrorText = "Method gave a blank filename"; |
| 2240 | return; |
| 2241 | } |
| 2242 | |
| 2243 | Complete = true; |
| 2244 | |
| 2245 | // The files timestamp matches |
| 2246 | if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) |
| 2247 | return; |
| 2248 | |
| 2249 | // We have to copy it into place |
| 2250 | if (FileName != DestFile) |
| 2251 | { |
| 2252 | Local = true; |
| 2253 | if (_config->FindB("Acquire::Source-Symlinks",true) == false || |
| 2254 | Cnf->Removable == true) |
| 2255 | { |
| 2256 | Desc.URI = "copy:" + FileName; |
| 2257 | QueueURI(Desc); |
| 2258 | return; |
| 2259 | } |
| 2260 | |
| 2261 | // Erase the file if it is a symlink so we can overwrite it |
| 2262 | struct stat St; |
| 2263 | if (lstat(DestFile.c_str(),&St) == 0) |
| 2264 | { |
| 2265 | if (S_ISLNK(St.st_mode) != 0) |
| 2266 | unlink(DestFile.c_str()); |
| 2267 | } |
| 2268 | |
| 2269 | // Symlink the file |
| 2270 | if (symlink(FileName.c_str(),DestFile.c_str()) != 0) |
| 2271 | { |
| 2272 | ErrorText = "Link to " + DestFile + " failure "; |
| 2273 | Status = StatError; |
| 2274 | Complete = false; |
| 2275 | } |
| 2276 | } |
| 2277 | } |
| 2278 | /*}}}*/ |
| 2279 | // AcqFile::Failed - Failure handler /*{{{*/ |
| 2280 | // --------------------------------------------------------------------- |
| 2281 | /* Here we try other sources */ |
| 2282 | void pkgAcqFile::Failed(string Message,pkgAcquire::MethodConfig *Cnf) |
| 2283 | { |
| 2284 | ErrorText = LookupTag(Message,"Message"); |
| 2285 | |
| 2286 | // This is the retry counter |
| 2287 | if (Retries != 0 && |
| 2288 | Cnf->LocalOnly == false && |
| 2289 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) |
| 2290 | { |
| 2291 | Retries--; |
| 2292 | QueueURI(Desc); |
| 2293 | return; |
| 2294 | } |
| 2295 | |
| 2296 | Item::Failed(Message,Cnf); |
| 2297 | } |
| 2298 | /*}}}*/ |
| 2299 | // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ |
| 2300 | // --------------------------------------------------------------------- |
| 2301 | /* The only header we use is the last-modified header. */ |
| 2302 | string pkgAcqFile::Custom600Headers() |
| 2303 | { |
| 2304 | if (IsIndexFile) |
| 2305 | return "\nIndex-File: true"; |
| 2306 | return ""; |
| 2307 | } |
| 2308 | /*}}}*/ |