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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 | Init(URI, URIDesc, ShortDesc); | |
936 | } | |
937 | pkgAcqIndex::pkgAcqIndex(pkgAcquire *Owner, IndexTarget const *Target, | |
938 | HashString const &ExpectedHash, indexRecords const *MetaIndexParser) | |
939 | : Item(Owner), RealURI(Target->URI), ExpectedHash(ExpectedHash) | |
940 | { | |
941 | // autoselect the compression method | |
942 | std::vector<std::string> types = APT::Configuration::getCompressionTypes(); | |
943 | CompressionExtension = ""; | |
944 | if (ExpectedHash.empty() == false) | |
945 | { | |
946 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) | |
947 | if (*t == "uncompressed" || MetaIndexParser->Exists(string(Target->MetaKey).append(".").append(*t)) == true) | |
948 | CompressionExtension.append(*t).append(" "); | |
949 | } | |
950 | else | |
951 | { | |
952 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) | |
953 | CompressionExtension.append(*t).append(" "); | |
954 | } | |
955 | if (CompressionExtension.empty() == false) | |
956 | CompressionExtension.erase(CompressionExtension.end()-1); | |
957 | ||
958 | // only verify non-optional targets, see acquire-item.h for a FIXME | |
959 | // to make this more flexible | |
960 | if (Target->IsOptional()) | |
961 | Verify = false; | |
962 | else | |
963 | Verify = true; | |
964 | ||
965 | Init(Target->URI, Target->Description, Target->ShortDesc); | |
966 | } | |
967 | /*}}}*/ | |
968 | // AcqIndex::Init - defered Constructor /*{{{*/ | |
969 | void pkgAcqIndex::Init(string const &URI, string const &URIDesc, string const &ShortDesc) { | |
970 | Decompression = false; | |
971 | Erase = false; | |
972 | ||
973 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; | |
974 | DestFile += URItoFileName(URI); | |
975 | ||
976 | std::string const comprExt = CompressionExtension.substr(0, CompressionExtension.find(' ')); | |
977 | if (comprExt == "uncompressed") | |
978 | Desc.URI = URI; | |
979 | else | |
980 | Desc.URI = URI + '.' + comprExt; | |
981 | ||
982 | Desc.Description = URIDesc; | |
983 | Desc.Owner = this; | |
984 | Desc.ShortDesc = ShortDesc; | |
985 | ||
986 | QueueURI(Desc); | |
987 | } | |
988 | /*}}}*/ | |
989 | // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ | |
990 | // --------------------------------------------------------------------- | |
991 | /* The only header we use is the last-modified header. */ | |
992 | string pkgAcqIndex::Custom600Headers() | |
993 | { | |
994 | string Final = _config->FindDir("Dir::State::lists"); | |
995 | Final += URItoFileName(RealURI); | |
996 | if (_config->FindB("Acquire::GzipIndexes",false)) | |
997 | Final += ".gz"; | |
998 | ||
999 | string msg = "\nIndex-File: true"; | |
1000 | // FIXME: this really should use "IndexTarget::IsOptional()" but that | |
1001 | // seems to be difficult without breaking ABI | |
1002 | if (ShortDesc().find("Translation") != 0) | |
1003 | msg += "\nFail-Ignore: true"; | |
1004 | struct stat Buf; | |
1005 | if (stat(Final.c_str(),&Buf) == 0) | |
1006 | msg += "\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); | |
1007 | ||
1008 | return msg; | |
1009 | } | |
1010 | /*}}}*/ | |
1011 | void pkgAcqIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/ | |
1012 | { | |
1013 | size_t const nextExt = CompressionExtension.find(' '); | |
1014 | if (nextExt != std::string::npos) | |
1015 | { | |
1016 | CompressionExtension = CompressionExtension.substr(nextExt+1); | |
1017 | Init(RealURI, Desc.Description, Desc.ShortDesc); | |
1018 | return; | |
1019 | } | |
1020 | ||
1021 | // on decompression failure, remove bad versions in partial/ | |
1022 | if (Decompression && Erase) { | |
1023 | string s = _config->FindDir("Dir::State::lists") + "partial/"; | |
1024 | s.append(URItoFileName(RealURI)); | |
1025 | unlink(s.c_str()); | |
1026 | } | |
1027 | ||
1028 | Item::Failed(Message,Cnf); | |
1029 | } | |
1030 | /*}}}*/ | |
1031 | // AcqIndex::Done - Finished a fetch /*{{{*/ | |
1032 | // --------------------------------------------------------------------- | |
1033 | /* This goes through a number of states.. On the initial fetch the | |
1034 | method could possibly return an alternate filename which points | |
1035 | to the uncompressed version of the file. If this is so the file | |
1036 | is copied into the partial directory. In all other cases the file | |
1037 | is decompressed with a gzip uri. */ | |
1038 | void pkgAcqIndex::Done(string Message,unsigned long long Size,string Hash, | |
1039 | pkgAcquire::MethodConfig *Cfg) | |
1040 | { | |
1041 | Item::Done(Message,Size,Hash,Cfg); | |
1042 | ||
1043 | if (Decompression == true) | |
1044 | { | |
1045 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) | |
1046 | { | |
1047 | std::cerr << std::endl << RealURI << ": Computed Hash: " << Hash; | |
1048 | std::cerr << " Expected Hash: " << ExpectedHash.toStr() << std::endl; | |
1049 | } | |
1050 | ||
1051 | if (!ExpectedHash.empty() && ExpectedHash.toStr() != Hash) | |
1052 | { | |
1053 | RenameOnError(HashSumMismatch); | |
1054 | return; | |
1055 | } | |
1056 | ||
1057 | /* Verify the index file for correctness (all indexes must | |
1058 | * have a Package field) (LP: #346386) (Closes: #627642) */ | |
1059 | if (Verify == true) | |
1060 | { | |
1061 | FileFd fd(DestFile, FileFd::ReadOnly); | |
1062 | // Only test for correctness if the file is not empty (empty is ok) | |
1063 | if (fd.FileSize() > 0) | |
1064 | { | |
1065 | pkgTagSection sec; | |
1066 | pkgTagFile tag(&fd); | |
1067 | ||
1068 | // all our current indexes have a field 'Package' in each section | |
1069 | if (_error->PendingError() == true || tag.Step(sec) == false || sec.Exists("Package") == false) | |
1070 | { | |
1071 | RenameOnError(InvalidFormat); | |
1072 | return; | |
1073 | } | |
1074 | } | |
1075 | } | |
1076 | ||
1077 | // Done, move it into position | |
1078 | string FinalFile = _config->FindDir("Dir::State::lists"); | |
1079 | FinalFile += URItoFileName(RealURI); | |
1080 | Rename(DestFile,FinalFile); | |
1081 | chmod(FinalFile.c_str(),0644); | |
1082 | ||
1083 | /* We restore the original name to DestFile so that the clean operation | |
1084 | will work OK */ | |
1085 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; | |
1086 | DestFile += URItoFileName(RealURI); | |
1087 | ||
1088 | // Remove the compressed version. | |
1089 | if (Erase == true) | |
1090 | unlink(DestFile.c_str()); | |
1091 | return; | |
1092 | } | |
1093 | ||
1094 | Erase = false; | |
1095 | Complete = true; | |
1096 | ||
1097 | // Handle the unzipd case | |
1098 | string FileName = LookupTag(Message,"Alt-Filename"); | |
1099 | if (FileName.empty() == false) | |
1100 | { | |
1101 | // The files timestamp matches | |
1102 | if (StringToBool(LookupTag(Message,"Alt-IMS-Hit"),false) == true) | |
1103 | return; | |
1104 | Decompression = true; | |
1105 | Local = true; | |
1106 | DestFile += ".decomp"; | |
1107 | Desc.URI = "copy:" + FileName; | |
1108 | QueueURI(Desc); | |
1109 | Mode = "copy"; | |
1110 | return; | |
1111 | } | |
1112 | ||
1113 | FileName = LookupTag(Message,"Filename"); | |
1114 | if (FileName.empty() == true) | |
1115 | { | |
1116 | Status = StatError; | |
1117 | ErrorText = "Method gave a blank filename"; | |
1118 | } | |
1119 | ||
1120 | std::string const compExt = CompressionExtension.substr(0, CompressionExtension.find(' ')); | |
1121 | ||
1122 | // The files timestamp matches | |
1123 | if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) { | |
1124 | if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz") | |
1125 | // Update DestFile for .gz suffix so that the clean operation keeps it | |
1126 | DestFile += ".gz"; | |
1127 | return; | |
1128 | } | |
1129 | ||
1130 | if (FileName == DestFile) | |
1131 | Erase = true; | |
1132 | else | |
1133 | Local = true; | |
1134 | ||
1135 | string decompProg; | |
1136 | ||
1137 | // If we enable compressed indexes and already have gzip, keep it | |
1138 | if (_config->FindB("Acquire::GzipIndexes",false) && compExt == "gz" && !Local) { | |
1139 | string FinalFile = _config->FindDir("Dir::State::lists"); | |
1140 | FinalFile += URItoFileName(RealURI) + ".gz"; | |
1141 | Rename(DestFile,FinalFile); | |
1142 | chmod(FinalFile.c_str(),0644); | |
1143 | ||
1144 | // Update DestFile for .gz suffix so that the clean operation keeps it | |
1145 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; | |
1146 | DestFile += URItoFileName(RealURI) + ".gz"; | |
1147 | return; | |
1148 | } | |
1149 | ||
1150 | // get the binary name for your used compression type | |
1151 | decompProg = _config->Find(string("Acquire::CompressionTypes::").append(compExt),""); | |
1152 | if(decompProg.empty() == false); | |
1153 | else if(compExt == "uncompressed") | |
1154 | decompProg = "copy"; | |
1155 | else { | |
1156 | _error->Error("Unsupported extension: %s", compExt.c_str()); | |
1157 | return; | |
1158 | } | |
1159 | ||
1160 | Decompression = true; | |
1161 | DestFile += ".decomp"; | |
1162 | Desc.URI = decompProg + ":" + FileName; | |
1163 | QueueURI(Desc); | |
1164 | ||
1165 | // FIXME: this points to a c++ string that goes out of scope | |
1166 | Mode = decompProg.c_str(); | |
1167 | } | |
1168 | /*}}}*/ | |
1169 | // AcqIndexTrans::pkgAcqIndexTrans - Constructor /*{{{*/ | |
1170 | // --------------------------------------------------------------------- | |
1171 | /* The Translation file is added to the queue */ | |
1172 | pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, | |
1173 | string URI,string URIDesc,string ShortDesc) | |
1174 | : pkgAcqIndex(Owner, URI, URIDesc, ShortDesc, HashString(), "") | |
1175 | { | |
1176 | } | |
1177 | pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire *Owner, IndexTarget const *Target, | |
1178 | HashString const &ExpectedHash, indexRecords const *MetaIndexParser) | |
1179 | : pkgAcqIndex(Owner, Target, ExpectedHash, MetaIndexParser) | |
1180 | { | |
1181 | } | |
1182 | /*}}}*/ | |
1183 | // AcqIndexTrans::Custom600Headers - Insert custom request headers /*{{{*/ | |
1184 | // --------------------------------------------------------------------- | |
1185 | string pkgAcqIndexTrans::Custom600Headers() | |
1186 | { | |
1187 | string Final = _config->FindDir("Dir::State::lists"); | |
1188 | Final += URItoFileName(RealURI); | |
1189 | ||
1190 | struct stat Buf; | |
1191 | if (stat(Final.c_str(),&Buf) != 0) | |
1192 | return "\nFail-Ignore: true\nIndex-File: true"; | |
1193 | return "\nFail-Ignore: true\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); | |
1194 | } | |
1195 | /*}}}*/ | |
1196 | // AcqIndexTrans::Failed - Silence failure messages for missing files /*{{{*/ | |
1197 | // --------------------------------------------------------------------- | |
1198 | /* */ | |
1199 | void pkgAcqIndexTrans::Failed(string Message,pkgAcquire::MethodConfig *Cnf) | |
1200 | { | |
1201 | size_t const nextExt = CompressionExtension.find(' '); | |
1202 | if (nextExt != std::string::npos) | |
1203 | { | |
1204 | CompressionExtension = CompressionExtension.substr(nextExt+1); | |
1205 | Init(RealURI, Desc.Description, Desc.ShortDesc); | |
1206 | Status = StatIdle; | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | if (Cnf->LocalOnly == true || | |
1211 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == false) | |
1212 | { | |
1213 | // Ignore this | |
1214 | Status = StatDone; | |
1215 | Complete = false; | |
1216 | Dequeue(); | |
1217 | return; | |
1218 | } | |
1219 | ||
1220 | Item::Failed(Message,Cnf); | |
1221 | } | |
1222 | /*}}}*/ | |
1223 | pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire *Owner, /*{{{*/ | |
1224 | string URI,string URIDesc,string ShortDesc, | |
1225 | string MetaIndexURI, string MetaIndexURIDesc, | |
1226 | string MetaIndexShortDesc, | |
1227 | const vector<IndexTarget*>* IndexTargets, | |
1228 | indexRecords* MetaIndexParser) : | |
1229 | Item(Owner), RealURI(URI), MetaIndexURI(MetaIndexURI), | |
1230 | MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc), | |
1231 | MetaIndexParser(MetaIndexParser), IndexTargets(IndexTargets) | |
1232 | { | |
1233 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; | |
1234 | DestFile += URItoFileName(URI); | |
1235 | ||
1236 | // remove any partial downloaded sig-file in partial/. | |
1237 | // it may confuse proxies and is too small to warrant a | |
1238 | // partial download anyway | |
1239 | unlink(DestFile.c_str()); | |
1240 | ||
1241 | // Create the item | |
1242 | Desc.Description = URIDesc; | |
1243 | Desc.Owner = this; | |
1244 | Desc.ShortDesc = ShortDesc; | |
1245 | Desc.URI = URI; | |
1246 | ||
1247 | string Final = _config->FindDir("Dir::State::lists"); | |
1248 | Final += URItoFileName(RealURI); | |
1249 | if (RealFileExists(Final) == true) | |
1250 | { | |
1251 | // File was already in place. It needs to be re-downloaded/verified | |
1252 | // because Release might have changed, we do give it a different | |
1253 | // name than DestFile because otherwise the http method will | |
1254 | // send If-Range requests and there are too many broken servers | |
1255 | // out there that do not understand them | |
1256 | LastGoodSig = DestFile+".reverify"; | |
1257 | Rename(Final,LastGoodSig); | |
1258 | } | |
1259 | ||
1260 | QueueURI(Desc); | |
1261 | } | |
1262 | /*}}}*/ | |
1263 | pkgAcqMetaSig::~pkgAcqMetaSig() /*{{{*/ | |
1264 | { | |
1265 | // if the file was never queued undo file-changes done in the constructor | |
1266 | if (QueueCounter == 1 && Status == StatIdle && FileSize == 0 && Complete == false && | |
1267 | LastGoodSig.empty() == false) | |
1268 | { | |
1269 | string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); | |
1270 | if (RealFileExists(Final) == false && RealFileExists(LastGoodSig) == true) | |
1271 | Rename(LastGoodSig, Final); | |
1272 | } | |
1273 | ||
1274 | } | |
1275 | /*}}}*/ | |
1276 | // pkgAcqMetaSig::Custom600Headers - Insert custom request headers /*{{{*/ | |
1277 | // --------------------------------------------------------------------- | |
1278 | /* The only header we use is the last-modified header. */ | |
1279 | string pkgAcqMetaSig::Custom600Headers() | |
1280 | { | |
1281 | struct stat Buf; | |
1282 | if (stat(LastGoodSig.c_str(),&Buf) != 0) | |
1283 | return "\nIndex-File: true"; | |
1284 | ||
1285 | return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); | |
1286 | } | |
1287 | ||
1288 | void pkgAcqMetaSig::Done(string Message,unsigned long long Size,string MD5, | |
1289 | pkgAcquire::MethodConfig *Cfg) | |
1290 | { | |
1291 | Item::Done(Message,Size,MD5,Cfg); | |
1292 | ||
1293 | string FileName = LookupTag(Message,"Filename"); | |
1294 | if (FileName.empty() == true) | |
1295 | { | |
1296 | Status = StatError; | |
1297 | ErrorText = "Method gave a blank filename"; | |
1298 | return; | |
1299 | } | |
1300 | ||
1301 | if (FileName != DestFile) | |
1302 | { | |
1303 | // We have to copy it into place | |
1304 | Local = true; | |
1305 | Desc.URI = "copy:" + FileName; | |
1306 | QueueURI(Desc); | |
1307 | return; | |
1308 | } | |
1309 | ||
1310 | Complete = true; | |
1311 | ||
1312 | // put the last known good file back on i-m-s hit (it will | |
1313 | // be re-verified again) | |
1314 | // Else do nothing, we have the new file in DestFile then | |
1315 | if(StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) | |
1316 | Rename(LastGoodSig, DestFile); | |
1317 | ||
1318 | // queue a pkgAcqMetaIndex to be verified against the sig we just retrieved | |
1319 | new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, | |
1320 | MetaIndexShortDesc, DestFile, IndexTargets, | |
1321 | MetaIndexParser); | |
1322 | ||
1323 | } | |
1324 | /*}}}*/ | |
1325 | void pkgAcqMetaSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/ | |
1326 | { | |
1327 | string Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); | |
1328 | ||
1329 | // if we get a network error we fail gracefully | |
1330 | if(Status == StatTransientNetworkError) | |
1331 | { | |
1332 | Item::Failed(Message,Cnf); | |
1333 | // move the sigfile back on transient network failures | |
1334 | if(FileExists(LastGoodSig)) | |
1335 | Rename(LastGoodSig,Final); | |
1336 | ||
1337 | // set the status back to , Item::Failed likes to reset it | |
1338 | Status = pkgAcquire::Item::StatTransientNetworkError; | |
1339 | return; | |
1340 | } | |
1341 | ||
1342 | // Delete any existing sigfile when the acquire failed | |
1343 | unlink(Final.c_str()); | |
1344 | ||
1345 | // queue a pkgAcqMetaIndex with no sigfile | |
1346 | new pkgAcqMetaIndex(Owner, MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc, | |
1347 | "", IndexTargets, MetaIndexParser); | |
1348 | ||
1349 | if (Cnf->LocalOnly == true || | |
1350 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == false) | |
1351 | { | |
1352 | // Ignore this | |
1353 | Status = StatDone; | |
1354 | Complete = false; | |
1355 | Dequeue(); | |
1356 | return; | |
1357 | } | |
1358 | ||
1359 | Item::Failed(Message,Cnf); | |
1360 | } | |
1361 | /*}}}*/ | |
1362 | pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire *Owner, /*{{{*/ | |
1363 | string URI,string URIDesc,string ShortDesc, | |
1364 | string SigFile, | |
1365 | const vector<struct IndexTarget*>* IndexTargets, | |
1366 | indexRecords* MetaIndexParser) : | |
1367 | Item(Owner), RealURI(URI), SigFile(SigFile), IndexTargets(IndexTargets), | |
1368 | MetaIndexParser(MetaIndexParser), AuthPass(false), IMSHit(false) | |
1369 | { | |
1370 | DestFile = _config->FindDir("Dir::State::lists") + "partial/"; | |
1371 | DestFile += URItoFileName(URI); | |
1372 | ||
1373 | // Create the item | |
1374 | Desc.Description = URIDesc; | |
1375 | Desc.Owner = this; | |
1376 | Desc.ShortDesc = ShortDesc; | |
1377 | Desc.URI = URI; | |
1378 | ||
1379 | QueueURI(Desc); | |
1380 | } | |
1381 | /*}}}*/ | |
1382 | // pkgAcqMetaIndex::Custom600Headers - Insert custom request headers /*{{{*/ | |
1383 | // --------------------------------------------------------------------- | |
1384 | /* The only header we use is the last-modified header. */ | |
1385 | string pkgAcqMetaIndex::Custom600Headers() | |
1386 | { | |
1387 | string Final = _config->FindDir("Dir::State::lists"); | |
1388 | Final += URItoFileName(RealURI); | |
1389 | ||
1390 | struct stat Buf; | |
1391 | if (stat(Final.c_str(),&Buf) != 0) | |
1392 | return "\nIndex-File: true"; | |
1393 | ||
1394 | return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); | |
1395 | } | |
1396 | /*}}}*/ | |
1397 | void pkgAcqMetaIndex::Done(string Message,unsigned long long Size,string Hash, /*{{{*/ | |
1398 | pkgAcquire::MethodConfig *Cfg) | |
1399 | { | |
1400 | Item::Done(Message,Size,Hash,Cfg); | |
1401 | ||
1402 | // MetaIndexes are done in two passes: one to download the | |
1403 | // metaindex with an appropriate method, and a second to verify it | |
1404 | // with the gpgv method | |
1405 | ||
1406 | if (AuthPass == true) | |
1407 | { | |
1408 | AuthDone(Message); | |
1409 | ||
1410 | // all cool, move Release file into place | |
1411 | Complete = true; | |
1412 | } | |
1413 | else | |
1414 | { | |
1415 | RetrievalDone(Message); | |
1416 | if (!Complete) | |
1417 | // Still more retrieving to do | |
1418 | return; | |
1419 | ||
1420 | if (SigFile == "") | |
1421 | { | |
1422 | // There was no signature file, so we are finished. Download | |
1423 | // the indexes and do only hashsum verification if possible | |
1424 | MetaIndexParser->Load(DestFile); | |
1425 | QueueIndexes(false); | |
1426 | } | |
1427 | else | |
1428 | { | |
1429 | // There was a signature file, so pass it to gpgv for | |
1430 | // verification | |
1431 | ||
1432 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) | |
1433 | std::cerr << "Metaindex acquired, queueing gpg verification (" | |
1434 | << SigFile << "," << DestFile << ")\n"; | |
1435 | AuthPass = true; | |
1436 | Desc.URI = "gpgv:" + SigFile; | |
1437 | QueueURI(Desc); | |
1438 | Mode = "gpgv"; | |
1439 | return; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | if (Complete == true) | |
1444 | { | |
1445 | string FinalFile = _config->FindDir("Dir::State::lists"); | |
1446 | FinalFile += URItoFileName(RealURI); | |
1447 | if (SigFile == DestFile) | |
1448 | SigFile = FinalFile; | |
1449 | Rename(DestFile,FinalFile); | |
1450 | chmod(FinalFile.c_str(),0644); | |
1451 | DestFile = FinalFile; | |
1452 | } | |
1453 | } | |
1454 | /*}}}*/ | |
1455 | void pkgAcqMetaIndex::RetrievalDone(string Message) /*{{{*/ | |
1456 | { | |
1457 | // We have just finished downloading a Release file (it is not | |
1458 | // verified yet) | |
1459 | ||
1460 | string FileName = LookupTag(Message,"Filename"); | |
1461 | if (FileName.empty() == true) | |
1462 | { | |
1463 | Status = StatError; | |
1464 | ErrorText = "Method gave a blank filename"; | |
1465 | return; | |
1466 | } | |
1467 | ||
1468 | if (FileName != DestFile) | |
1469 | { | |
1470 | Local = true; | |
1471 | Desc.URI = "copy:" + FileName; | |
1472 | QueueURI(Desc); | |
1473 | return; | |
1474 | } | |
1475 | ||
1476 | // make sure to verify against the right file on I-M-S hit | |
1477 | IMSHit = StringToBool(LookupTag(Message,"IMS-Hit"),false); | |
1478 | if(IMSHit) | |
1479 | { | |
1480 | string FinalFile = _config->FindDir("Dir::State::lists"); | |
1481 | FinalFile += URItoFileName(RealURI); | |
1482 | if (SigFile == DestFile) | |
1483 | { | |
1484 | SigFile = FinalFile; | |
1485 | // constructor of pkgAcqMetaClearSig moved it out of the way, | |
1486 | // now move it back in on IMS hit for the 'old' file | |
1487 | string const OldClearSig = DestFile + ".reverify"; | |
1488 | if (RealFileExists(OldClearSig) == true) | |
1489 | Rename(OldClearSig, FinalFile); | |
1490 | } | |
1491 | DestFile = FinalFile; | |
1492 | } | |
1493 | Complete = true; | |
1494 | } | |
1495 | /*}}}*/ | |
1496 | void pkgAcqMetaIndex::AuthDone(string Message) /*{{{*/ | |
1497 | { | |
1498 | // At this point, the gpgv method has succeeded, so there is a | |
1499 | // valid signature from a key in the trusted keyring. We | |
1500 | // perform additional verification of its contents, and use them | |
1501 | // to verify the indexes we are about to download | |
1502 | ||
1503 | if (!MetaIndexParser->Load(DestFile)) | |
1504 | { | |
1505 | Status = StatAuthError; | |
1506 | ErrorText = MetaIndexParser->ErrorText; | |
1507 | return; | |
1508 | } | |
1509 | ||
1510 | if (!VerifyVendor(Message)) | |
1511 | { | |
1512 | return; | |
1513 | } | |
1514 | ||
1515 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) | |
1516 | std::cerr << "Signature verification succeeded: " | |
1517 | << DestFile << std::endl; | |
1518 | ||
1519 | // Download further indexes with verification | |
1520 | QueueIndexes(true); | |
1521 | ||
1522 | // is it a clearsigned MetaIndex file? | |
1523 | if (DestFile == SigFile) | |
1524 | return; | |
1525 | ||
1526 | // Done, move signature file into position | |
1527 | string VerifiedSigFile = _config->FindDir("Dir::State::lists") + | |
1528 | URItoFileName(RealURI) + ".gpg"; | |
1529 | Rename(SigFile,VerifiedSigFile); | |
1530 | chmod(VerifiedSigFile.c_str(),0644); | |
1531 | } | |
1532 | /*}}}*/ | |
1533 | void pkgAcqMetaIndex::QueueIndexes(bool verify) /*{{{*/ | |
1534 | { | |
1535 | #if 0 | |
1536 | /* Reject invalid, existing Release files (LP: #346386) (Closes: #627642) | |
1537 | * FIXME: Disabled; it breaks unsigned repositories without hashes */ | |
1538 | if (!verify && FileExists(DestFile) && !MetaIndexParser->Load(DestFile)) | |
1539 | { | |
1540 | Status = StatError; | |
1541 | ErrorText = MetaIndexParser->ErrorText; | |
1542 | return; | |
1543 | } | |
1544 | #endif | |
1545 | bool transInRelease = false; | |
1546 | { | |
1547 | std::vector<std::string> const keys = MetaIndexParser->MetaKeys(); | |
1548 | for (std::vector<std::string>::const_iterator k = keys.begin(); k != keys.end(); ++k) | |
1549 | // FIXME: Feels wrong to check for hardcoded string here, but what should we do else… | |
1550 | if (k->find("Translation-") != std::string::npos) | |
1551 | { | |
1552 | transInRelease = true; | |
1553 | break; | |
1554 | } | |
1555 | } | |
1556 | ||
1557 | for (vector <struct IndexTarget*>::const_iterator Target = IndexTargets->begin(); | |
1558 | Target != IndexTargets->end(); | |
1559 | ++Target) | |
1560 | { | |
1561 | HashString ExpectedIndexHash; | |
1562 | const indexRecords::checkSum *Record = MetaIndexParser->Lookup((*Target)->MetaKey); | |
1563 | bool compressedAvailable = false; | |
1564 | if (Record == NULL) | |
1565 | { | |
1566 | if ((*Target)->IsOptional() == true) | |
1567 | { | |
1568 | std::vector<std::string> types = APT::Configuration::getCompressionTypes(); | |
1569 | for (std::vector<std::string>::const_iterator t = types.begin(); t != types.end(); ++t) | |
1570 | if (MetaIndexParser->Exists((*Target)->MetaKey + "." + *t) == true) | |
1571 | { | |
1572 | compressedAvailable = true; | |
1573 | break; | |
1574 | } | |
1575 | } | |
1576 | else if (verify == true) | |
1577 | { | |
1578 | Status = StatAuthError; | |
1579 | strprintf(ErrorText, _("Unable to find expected entry '%s' in Release file (Wrong sources.list entry or malformed file)"), (*Target)->MetaKey.c_str()); | |
1580 | return; | |
1581 | } | |
1582 | } | |
1583 | else | |
1584 | { | |
1585 | ExpectedIndexHash = Record->Hash; | |
1586 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) | |
1587 | { | |
1588 | std::cerr << "Queueing: " << (*Target)->URI << std::endl; | |
1589 | std::cerr << "Expected Hash: " << ExpectedIndexHash.toStr() << std::endl; | |
1590 | std::cerr << "For: " << Record->MetaKeyFilename << std::endl; | |
1591 | } | |
1592 | if (verify == true && ExpectedIndexHash.empty() == true && (*Target)->IsOptional() == false) | |
1593 | { | |
1594 | Status = StatAuthError; | |
1595 | strprintf(ErrorText, _("Unable to find hash sum for '%s' in Release file"), (*Target)->MetaKey.c_str()); | |
1596 | return; | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | if ((*Target)->IsOptional() == true) | |
1601 | { | |
1602 | if ((*Target)->IsSubIndex() == true) | |
1603 | new pkgAcqSubIndex(Owner, (*Target)->URI, (*Target)->Description, | |
1604 | (*Target)->ShortDesc, ExpectedIndexHash); | |
1605 | else if (transInRelease == false || Record != NULL || compressedAvailable == true) | |
1606 | { | |
1607 | if (_config->FindB("Acquire::PDiffs",true) == true && transInRelease == true && | |
1608 | MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true) | |
1609 | new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description, | |
1610 | (*Target)->ShortDesc, ExpectedIndexHash); | |
1611 | else | |
1612 | new pkgAcqIndexTrans(Owner, *Target, ExpectedIndexHash, MetaIndexParser); | |
1613 | } | |
1614 | continue; | |
1615 | } | |
1616 | ||
1617 | /* Queue Packages file (either diff or full packages files, depending | |
1618 | on the users option) - we also check if the PDiff Index file is listed | |
1619 | in the Meta-Index file. Ideal would be if pkgAcqDiffIndex would test this | |
1620 | instead, but passing the required info to it is to much hassle */ | |
1621 | if(_config->FindB("Acquire::PDiffs",true) == true && (verify == false || | |
1622 | MetaIndexParser->Exists((*Target)->MetaKey + ".diff/Index") == true)) | |
1623 | new pkgAcqDiffIndex(Owner, (*Target)->URI, (*Target)->Description, | |
1624 | (*Target)->ShortDesc, ExpectedIndexHash); | |
1625 | else | |
1626 | new pkgAcqIndex(Owner, *Target, ExpectedIndexHash, MetaIndexParser); | |
1627 | } | |
1628 | } | |
1629 | /*}}}*/ | |
1630 | bool pkgAcqMetaIndex::VerifyVendor(string Message) /*{{{*/ | |
1631 | { | |
1632 | string::size_type pos; | |
1633 | ||
1634 | // check for missing sigs (that where not fatal because otherwise we had | |
1635 | // bombed earlier) | |
1636 | string missingkeys; | |
1637 | string msg = _("There is no public key available for the " | |
1638 | "following key IDs:\n"); | |
1639 | pos = Message.find("NO_PUBKEY "); | |
1640 | if (pos != std::string::npos) | |
1641 | { | |
1642 | string::size_type start = pos+strlen("NO_PUBKEY "); | |
1643 | string Fingerprint = Message.substr(start, Message.find("\n")-start); | |
1644 | missingkeys += (Fingerprint); | |
1645 | } | |
1646 | if(!missingkeys.empty()) | |
1647 | _error->Warning("%s", (msg + missingkeys).c_str()); | |
1648 | ||
1649 | string Transformed = MetaIndexParser->GetExpectedDist(); | |
1650 | ||
1651 | if (Transformed == "../project/experimental") | |
1652 | { | |
1653 | Transformed = "experimental"; | |
1654 | } | |
1655 | ||
1656 | pos = Transformed.rfind('/'); | |
1657 | if (pos != string::npos) | |
1658 | { | |
1659 | Transformed = Transformed.substr(0, pos); | |
1660 | } | |
1661 | ||
1662 | if (Transformed == ".") | |
1663 | { | |
1664 | Transformed = ""; | |
1665 | } | |
1666 | ||
1667 | if (_config->FindB("Acquire::Check-Valid-Until", true) == true && | |
1668 | MetaIndexParser->GetValidUntil() > 0) { | |
1669 | time_t const invalid_since = time(NULL) - MetaIndexParser->GetValidUntil(); | |
1670 | if (invalid_since > 0) | |
1671 | // TRANSLATOR: The first %s is the URL of the bad Release file, the second is | |
1672 | // the time since then the file is invalid - formated in the same way as in | |
1673 | // the download progress display (e.g. 7d 3h 42min 1s) | |
1674 | return _error->Error( | |
1675 | _("Release file for %s is expired (invalid since %s). " | |
1676 | "Updates for this repository will not be applied."), | |
1677 | RealURI.c_str(), TimeToStr(invalid_since).c_str()); | |
1678 | } | |
1679 | ||
1680 | if (_config->FindB("Debug::pkgAcquire::Auth", false)) | |
1681 | { | |
1682 | std::cerr << "Got Codename: " << MetaIndexParser->GetDist() << std::endl; | |
1683 | std::cerr << "Expecting Dist: " << MetaIndexParser->GetExpectedDist() << std::endl; | |
1684 | std::cerr << "Transformed Dist: " << Transformed << std::endl; | |
1685 | } | |
1686 | ||
1687 | if (MetaIndexParser->CheckDist(Transformed) == false) | |
1688 | { | |
1689 | // This might become fatal one day | |
1690 | // Status = StatAuthError; | |
1691 | // ErrorText = "Conflicting distribution; expected " | |
1692 | // + MetaIndexParser->GetExpectedDist() + " but got " | |
1693 | // + MetaIndexParser->GetDist(); | |
1694 | // return false; | |
1695 | if (!Transformed.empty()) | |
1696 | { | |
1697 | _error->Warning(_("Conflicting distribution: %s (expected %s but got %s)"), | |
1698 | Desc.Description.c_str(), | |
1699 | Transformed.c_str(), | |
1700 | MetaIndexParser->GetDist().c_str()); | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | return true; | |
1705 | } | |
1706 | /*}}}*/ | |
1707 | // pkgAcqMetaIndex::Failed - no Release file present or no signature file present /*{{{*/ | |
1708 | // --------------------------------------------------------------------- | |
1709 | /* */ | |
1710 | void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig * /*Cnf*/) | |
1711 | { | |
1712 | if (AuthPass == true) | |
1713 | { | |
1714 | // gpgv method failed, if we have a good signature | |
1715 | string LastGoodSigFile = _config->FindDir("Dir::State::lists").append("partial/").append(URItoFileName(RealURI)); | |
1716 | if (DestFile != SigFile) | |
1717 | LastGoodSigFile.append(".gpg"); | |
1718 | LastGoodSigFile.append(".reverify"); | |
1719 | ||
1720 | if(FileExists(LastGoodSigFile)) | |
1721 | { | |
1722 | string VerifiedSigFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); | |
1723 | if (DestFile != SigFile) | |
1724 | VerifiedSigFile.append(".gpg"); | |
1725 | Rename(LastGoodSigFile, VerifiedSigFile); | |
1726 | Status = StatTransientNetworkError; | |
1727 | _error->Warning(_("An error occurred during the signature " | |
1728 | "verification. The repository is not updated " | |
1729 | "and the previous index files will be used. " | |
1730 | "GPG error: %s: %s\n"), | |
1731 | Desc.Description.c_str(), | |
1732 | LookupTag(Message,"Message").c_str()); | |
1733 | RunScripts("APT::Update::Auth-Failure"); | |
1734 | return; | |
1735 | } else if (LookupTag(Message,"Message").find("NODATA") != string::npos) { | |
1736 | /* Invalid signature file, reject (LP: #346386) (Closes: #627642) */ | |
1737 | _error->Error(_("GPG error: %s: %s"), | |
1738 | Desc.Description.c_str(), | |
1739 | LookupTag(Message,"Message").c_str()); | |
1740 | return; | |
1741 | } else { | |
1742 | _error->Warning(_("GPG error: %s: %s"), | |
1743 | Desc.Description.c_str(), | |
1744 | LookupTag(Message,"Message").c_str()); | |
1745 | } | |
1746 | // gpgv method failed | |
1747 | ReportMirrorFailure("GPGFailure"); | |
1748 | } | |
1749 | ||
1750 | /* Always move the meta index, even if gpgv failed. This ensures | |
1751 | * that PackageFile objects are correctly filled in */ | |
1752 | if (FileExists(DestFile)) { | |
1753 | string FinalFile = _config->FindDir("Dir::State::lists"); | |
1754 | FinalFile += URItoFileName(RealURI); | |
1755 | /* InRelease files become Release files, otherwise | |
1756 | * they would be considered as trusted later on */ | |
1757 | if (SigFile == DestFile) { | |
1758 | RealURI = RealURI.replace(RealURI.rfind("InRelease"), 9, | |
1759 | "Release"); | |
1760 | FinalFile = FinalFile.replace(FinalFile.rfind("InRelease"), 9, | |
1761 | "Release"); | |
1762 | SigFile = FinalFile; | |
1763 | } | |
1764 | Rename(DestFile,FinalFile); | |
1765 | chmod(FinalFile.c_str(),0644); | |
1766 | ||
1767 | DestFile = FinalFile; | |
1768 | } | |
1769 | ||
1770 | // No Release file was present, or verification failed, so fall | |
1771 | // back to queueing Packages files without verification | |
1772 | QueueIndexes(false); | |
1773 | } | |
1774 | /*}}}*/ | |
1775 | pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire *Owner, /*{{{*/ | |
1776 | string const &URI, string const &URIDesc, string const &ShortDesc, | |
1777 | string const &MetaIndexURI, string const &MetaIndexURIDesc, string const &MetaIndexShortDesc, | |
1778 | string const &MetaSigURI, string const &MetaSigURIDesc, string const &MetaSigShortDesc, | |
1779 | const vector<struct IndexTarget*>* IndexTargets, | |
1780 | indexRecords* MetaIndexParser) : | |
1781 | pkgAcqMetaIndex(Owner, URI, URIDesc, ShortDesc, "", IndexTargets, MetaIndexParser), | |
1782 | MetaIndexURI(MetaIndexURI), MetaIndexURIDesc(MetaIndexURIDesc), MetaIndexShortDesc(MetaIndexShortDesc), | |
1783 | MetaSigURI(MetaSigURI), MetaSigURIDesc(MetaSigURIDesc), MetaSigShortDesc(MetaSigShortDesc) | |
1784 | { | |
1785 | SigFile = DestFile; | |
1786 | ||
1787 | // keep the old InRelease around in case of transistent network errors | |
1788 | string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); | |
1789 | if (RealFileExists(Final) == true) | |
1790 | { | |
1791 | string const LastGoodSig = DestFile + ".reverify"; | |
1792 | Rename(Final,LastGoodSig); | |
1793 | } | |
1794 | } | |
1795 | /*}}}*/ | |
1796 | pkgAcqMetaClearSig::~pkgAcqMetaClearSig() /*{{{*/ | |
1797 | { | |
1798 | // if the file was never queued undo file-changes done in the constructor | |
1799 | if (QueueCounter == 1 && Status == StatIdle && FileSize == 0 && Complete == false) | |
1800 | { | |
1801 | string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI); | |
1802 | string const LastGoodSig = DestFile + ".reverify"; | |
1803 | if (RealFileExists(Final) == false && RealFileExists(LastGoodSig) == true) | |
1804 | Rename(LastGoodSig, Final); | |
1805 | } | |
1806 | } | |
1807 | /*}}}*/ | |
1808 | // pkgAcqMetaClearSig::Custom600Headers - Insert custom request headers /*{{{*/ | |
1809 | // --------------------------------------------------------------------- | |
1810 | // FIXME: this can go away once the InRelease file is used widely | |
1811 | string pkgAcqMetaClearSig::Custom600Headers() | |
1812 | { | |
1813 | string Final = _config->FindDir("Dir::State::lists"); | |
1814 | Final += URItoFileName(RealURI); | |
1815 | ||
1816 | struct stat Buf; | |
1817 | if (stat(Final.c_str(),&Buf) != 0) | |
1818 | { | |
1819 | Final = DestFile + ".reverify"; | |
1820 | if (stat(Final.c_str(),&Buf) != 0) | |
1821 | return "\nIndex-File: true\nFail-Ignore: true\n"; | |
1822 | } | |
1823 | ||
1824 | return "\nIndex-File: true\nFail-Ignore: true\nLast-Modified: " + TimeRFC1123(Buf.st_mtime); | |
1825 | } | |
1826 | /*}}}*/ | |
1827 | void pkgAcqMetaClearSig::Failed(string Message,pkgAcquire::MethodConfig *Cnf) /*{{{*/ | |
1828 | { | |
1829 | if (AuthPass == false) | |
1830 | { | |
1831 | // Remove the 'old' InRelease file if we try Release.gpg now as otherwise | |
1832 | // the file will stay around and gives a false-auth impression (CVE-2012-0214) | |
1833 | string FinalFile = _config->FindDir("Dir::State::lists"); | |
1834 | FinalFile.append(URItoFileName(RealURI)); | |
1835 | if (FileExists(FinalFile)) | |
1836 | unlink(FinalFile.c_str()); | |
1837 | ||
1838 | new pkgAcqMetaSig(Owner, | |
1839 | MetaSigURI, MetaSigURIDesc, MetaSigShortDesc, | |
1840 | MetaIndexURI, MetaIndexURIDesc, MetaIndexShortDesc, | |
1841 | IndexTargets, MetaIndexParser); | |
1842 | if (Cnf->LocalOnly == true || | |
1843 | StringToBool(LookupTag(Message, "Transient-Failure"), false) == false) | |
1844 | Dequeue(); | |
1845 | } | |
1846 | else | |
1847 | pkgAcqMetaIndex::Failed(Message, Cnf); | |
1848 | } | |
1849 | /*}}}*/ | |
1850 | // AcqArchive::AcqArchive - Constructor /*{{{*/ | |
1851 | // --------------------------------------------------------------------- | |
1852 | /* This just sets up the initial fetch environment and queues the first | |
1853 | possibilitiy */ | |
1854 | pkgAcqArchive::pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources, | |
1855 | pkgRecords *Recs,pkgCache::VerIterator const &Version, | |
1856 | string &StoreFilename) : | |
1857 | Item(Owner), Version(Version), Sources(Sources), Recs(Recs), | |
1858 | StoreFilename(StoreFilename), Vf(Version.FileList()), | |
1859 | Trusted(false) | |
1860 | { | |
1861 | Retries = _config->FindI("Acquire::Retries",0); | |
1862 | ||
1863 | if (Version.Arch() == 0) | |
1864 | { | |
1865 | _error->Error(_("I wasn't able to locate a file for the %s package. " | |
1866 | "This might mean you need to manually fix this package. " | |
1867 | "(due to missing arch)"), | |
1868 | Version.ParentPkg().FullName().c_str()); | |
1869 | return; | |
1870 | } | |
1871 | ||
1872 | /* We need to find a filename to determine the extension. We make the | |
1873 | assumption here that all the available sources for this version share | |
1874 | the same extension.. */ | |
1875 | // Skip not source sources, they do not have file fields. | |
1876 | for (; Vf.end() == false; ++Vf) | |
1877 | { | |
1878 | if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0) | |
1879 | continue; | |
1880 | break; | |
1881 | } | |
1882 | ||
1883 | // Does not really matter here.. we are going to fail out below | |
1884 | if (Vf.end() != true) | |
1885 | { | |
1886 | // If this fails to get a file name we will bomb out below. | |
1887 | pkgRecords::Parser &Parse = Recs->Lookup(Vf); | |
1888 | if (_error->PendingError() == true) | |
1889 | return; | |
1890 | ||
1891 | // Generate the final file name as: package_version_arch.foo | |
1892 | StoreFilename = QuoteString(Version.ParentPkg().Name(),"_:") + '_' + | |
1893 | QuoteString(Version.VerStr(),"_:") + '_' + | |
1894 | QuoteString(Version.Arch(),"_:.") + | |
1895 | "." + flExtension(Parse.FileName()); | |
1896 | } | |
1897 | ||
1898 | // check if we have one trusted source for the package. if so, switch | |
1899 | // to "TrustedOnly" mode - but only if not in AllowUnauthenticated mode | |
1900 | bool const allowUnauth = _config->FindB("APT::Get::AllowUnauthenticated", false); | |
1901 | bool const debugAuth = _config->FindB("Debug::pkgAcquire::Auth", false); | |
1902 | bool seenUntrusted = false; | |
1903 | for (pkgCache::VerFileIterator i = Version.FileList(); i.end() == false; ++i) | |
1904 | { | |
1905 | pkgIndexFile *Index; | |
1906 | if (Sources->FindIndex(i.File(),Index) == false) | |
1907 | continue; | |
1908 | ||
1909 | if (debugAuth == true) | |
1910 | std::cerr << "Checking index: " << Index->Describe() | |
1911 | << "(Trusted=" << Index->IsTrusted() << ")" << std::endl; | |
1912 | ||
1913 | if (Index->IsTrusted() == true) | |
1914 | { | |
1915 | Trusted = true; | |
1916 | if (allowUnauth == false) | |
1917 | break; | |
1918 | } | |
1919 | else | |
1920 | seenUntrusted = true; | |
1921 | } | |
1922 | ||
1923 | // "allow-unauthenticated" restores apts old fetching behaviour | |
1924 | // that means that e.g. unauthenticated file:// uris are higher | |
1925 | // priority than authenticated http:// uris | |
1926 | if (allowUnauth == true && seenUntrusted == true) | |
1927 | Trusted = false; | |
1928 | ||
1929 | // Select a source | |
1930 | if (QueueNext() == false && _error->PendingError() == false) | |
1931 | _error->Error(_("Can't find a source to download version '%s' of '%s'"), | |
1932 | Version.VerStr(), Version.ParentPkg().FullName(false).c_str()); | |
1933 | } | |
1934 | /*}}}*/ | |
1935 | // AcqArchive::QueueNext - Queue the next file source /*{{{*/ | |
1936 | // --------------------------------------------------------------------- | |
1937 | /* This queues the next available file version for download. It checks if | |
1938 | the archive is already available in the cache and stashs the MD5 for | |
1939 | checking later. */ | |
1940 | bool pkgAcqArchive::QueueNext() | |
1941 | { | |
1942 | string const ForceHash = _config->Find("Acquire::ForceHash"); | |
1943 | for (; Vf.end() == false; ++Vf) | |
1944 | { | |
1945 | // Ignore not source sources | |
1946 | if ((Vf.File()->Flags & pkgCache::Flag::NotSource) != 0) | |
1947 | continue; | |
1948 | ||
1949 | // Try to cross match against the source list | |
1950 | pkgIndexFile *Index; | |
1951 | if (Sources->FindIndex(Vf.File(),Index) == false) | |
1952 | continue; | |
1953 | ||
1954 | // only try to get a trusted package from another source if that source | |
1955 | // is also trusted | |
1956 | if(Trusted && !Index->IsTrusted()) | |
1957 | continue; | |
1958 | ||
1959 | // Grab the text package record | |
1960 | pkgRecords::Parser &Parse = Recs->Lookup(Vf); | |
1961 | if (_error->PendingError() == true) | |
1962 | return false; | |
1963 | ||
1964 | string PkgFile = Parse.FileName(); | |
1965 | if (ForceHash.empty() == false) | |
1966 | { | |
1967 | if(stringcasecmp(ForceHash, "sha512") == 0) | |
1968 | ExpectedHash = HashString("SHA512", Parse.SHA512Hash()); | |
1969 | else if(stringcasecmp(ForceHash, "sha256") == 0) | |
1970 | ExpectedHash = HashString("SHA256", Parse.SHA256Hash()); | |
1971 | else if (stringcasecmp(ForceHash, "sha1") == 0) | |
1972 | ExpectedHash = HashString("SHA1", Parse.SHA1Hash()); | |
1973 | else | |
1974 | ExpectedHash = HashString("MD5Sum", Parse.MD5Hash()); | |
1975 | } | |
1976 | else | |
1977 | { | |
1978 | string Hash; | |
1979 | if ((Hash = Parse.SHA512Hash()).empty() == false) | |
1980 | ExpectedHash = HashString("SHA512", Hash); | |
1981 | else if ((Hash = Parse.SHA256Hash()).empty() == false) | |
1982 | ExpectedHash = HashString("SHA256", Hash); | |
1983 | else if ((Hash = Parse.SHA1Hash()).empty() == false) | |
1984 | ExpectedHash = HashString("SHA1", Hash); | |
1985 | else | |
1986 | ExpectedHash = HashString("MD5Sum", Parse.MD5Hash()); | |
1987 | } | |
1988 | if (PkgFile.empty() == true) | |
1989 | return _error->Error(_("The package index files are corrupted. No Filename: " | |
1990 | "field for package %s."), | |
1991 | Version.ParentPkg().Name()); | |
1992 | ||
1993 | Desc.URI = Index->ArchiveURI(PkgFile); | |
1994 | Desc.Description = Index->ArchiveInfo(Version); | |
1995 | Desc.Owner = this; | |
1996 | Desc.ShortDesc = Version.ParentPkg().FullName(true); | |
1997 | ||
1998 | // See if we already have the file. (Legacy filenames) | |
1999 | FileSize = Version->Size; | |
2000 | string FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(PkgFile); | |
2001 | struct stat Buf; | |
2002 | if (stat(FinalFile.c_str(),&Buf) == 0) | |
2003 | { | |
2004 | // Make sure the size matches | |
2005 | if ((unsigned long long)Buf.st_size == Version->Size) | |
2006 | { | |
2007 | Complete = true; | |
2008 | Local = true; | |
2009 | Status = StatDone; | |
2010 | StoreFilename = DestFile = FinalFile; | |
2011 | return true; | |
2012 | } | |
2013 | ||
2014 | /* Hmm, we have a file and its size does not match, this means it is | |
2015 | an old style mismatched arch */ | |
2016 | unlink(FinalFile.c_str()); | |
2017 | } | |
2018 | ||
2019 | // Check it again using the new style output filenames | |
2020 | FinalFile = _config->FindDir("Dir::Cache::Archives") + flNotDir(StoreFilename); | |
2021 | if (stat(FinalFile.c_str(),&Buf) == 0) | |
2022 | { | |
2023 | // Make sure the size matches | |
2024 | if ((unsigned long long)Buf.st_size == Version->Size) | |
2025 | { | |
2026 | Complete = true; | |
2027 | Local = true; | |
2028 | Status = StatDone; | |
2029 | StoreFilename = DestFile = FinalFile; | |
2030 | return true; | |
2031 | } | |
2032 | ||
2033 | /* Hmm, we have a file and its size does not match, this shouldn't | |
2034 | happen.. */ | |
2035 | unlink(FinalFile.c_str()); | |
2036 | } | |
2037 | ||
2038 | DestFile = _config->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename); | |
2039 | ||
2040 | // Check the destination file | |
2041 | if (stat(DestFile.c_str(),&Buf) == 0) | |
2042 | { | |
2043 | // Hmm, the partial file is too big, erase it | |
2044 | if ((unsigned long long)Buf.st_size > Version->Size) | |
2045 | unlink(DestFile.c_str()); | |
2046 | else | |
2047 | PartialSize = Buf.st_size; | |
2048 | } | |
2049 | ||
2050 | // Disables download of archives - useful if no real installation follows, | |
2051 | // e.g. if we are just interested in proposed installation order | |
2052 | if (_config->FindB("Debug::pkgAcqArchive::NoQueue", false) == true) | |
2053 | { | |
2054 | Complete = true; | |
2055 | Local = true; | |
2056 | Status = StatDone; | |
2057 | StoreFilename = DestFile = FinalFile; | |
2058 | return true; | |
2059 | } | |
2060 | ||
2061 | // Create the item | |
2062 | Local = false; | |
2063 | QueueURI(Desc); | |
2064 | ||
2065 | ++Vf; | |
2066 | return true; | |
2067 | } | |
2068 | return false; | |
2069 | } | |
2070 | /*}}}*/ | |
2071 | // AcqArchive::Done - Finished fetching /*{{{*/ | |
2072 | // --------------------------------------------------------------------- | |
2073 | /* */ | |
2074 | void pkgAcqArchive::Done(string Message,unsigned long long Size,string CalcHash, | |
2075 | pkgAcquire::MethodConfig *Cfg) | |
2076 | { | |
2077 | Item::Done(Message,Size,CalcHash,Cfg); | |
2078 | ||
2079 | // Check the size | |
2080 | if (Size != Version->Size) | |
2081 | { | |
2082 | RenameOnError(SizeMismatch); | |
2083 | return; | |
2084 | } | |
2085 | ||
2086 | // Check the hash | |
2087 | if(ExpectedHash.toStr() != CalcHash) | |
2088 | { | |
2089 | RenameOnError(HashSumMismatch); | |
2090 | return; | |
2091 | } | |
2092 | ||
2093 | // Grab the output filename | |
2094 | string FileName = LookupTag(Message,"Filename"); | |
2095 | if (FileName.empty() == true) | |
2096 | { | |
2097 | Status = StatError; | |
2098 | ErrorText = "Method gave a blank filename"; | |
2099 | return; | |
2100 | } | |
2101 | ||
2102 | Complete = true; | |
2103 | ||
2104 | // Reference filename | |
2105 | if (FileName != DestFile) | |
2106 | { | |
2107 | StoreFilename = DestFile = FileName; | |
2108 | Local = true; | |
2109 | return; | |
2110 | } | |
2111 | ||
2112 | // Done, move it into position | |
2113 | string FinalFile = _config->FindDir("Dir::Cache::Archives"); | |
2114 | FinalFile += flNotDir(StoreFilename); | |
2115 | Rename(DestFile,FinalFile); | |
2116 | ||
2117 | StoreFilename = DestFile = FinalFile; | |
2118 | Complete = true; | |
2119 | } | |
2120 | /*}}}*/ | |
2121 | // AcqArchive::Failed - Failure handler /*{{{*/ | |
2122 | // --------------------------------------------------------------------- | |
2123 | /* Here we try other sources */ | |
2124 | void pkgAcqArchive::Failed(string Message,pkgAcquire::MethodConfig *Cnf) | |
2125 | { | |
2126 | ErrorText = LookupTag(Message,"Message"); | |
2127 | ||
2128 | /* We don't really want to retry on failed media swaps, this prevents | |
2129 | that. An interesting observation is that permanent failures are not | |
2130 | recorded. */ | |
2131 | if (Cnf->Removable == true && | |
2132 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) | |
2133 | { | |
2134 | // Vf = Version.FileList(); | |
2135 | while (Vf.end() == false) ++Vf; | |
2136 | StoreFilename = string(); | |
2137 | Item::Failed(Message,Cnf); | |
2138 | return; | |
2139 | } | |
2140 | ||
2141 | if (QueueNext() == false) | |
2142 | { | |
2143 | // This is the retry counter | |
2144 | if (Retries != 0 && | |
2145 | Cnf->LocalOnly == false && | |
2146 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) | |
2147 | { | |
2148 | Retries--; | |
2149 | Vf = Version.FileList(); | |
2150 | if (QueueNext() == true) | |
2151 | return; | |
2152 | } | |
2153 | ||
2154 | StoreFilename = string(); | |
2155 | Item::Failed(Message,Cnf); | |
2156 | } | |
2157 | } | |
2158 | /*}}}*/ | |
2159 | // AcqArchive::IsTrusted - Determine whether this archive comes from a trusted source /*{{{*/ | |
2160 | // --------------------------------------------------------------------- | |
2161 | APT_PURE bool pkgAcqArchive::IsTrusted() | |
2162 | { | |
2163 | return Trusted; | |
2164 | } | |
2165 | /*}}}*/ | |
2166 | // AcqArchive::Finished - Fetching has finished, tidy up /*{{{*/ | |
2167 | // --------------------------------------------------------------------- | |
2168 | /* */ | |
2169 | void pkgAcqArchive::Finished() | |
2170 | { | |
2171 | if (Status == pkgAcquire::Item::StatDone && | |
2172 | Complete == true) | |
2173 | return; | |
2174 | StoreFilename = string(); | |
2175 | } | |
2176 | /*}}}*/ | |
2177 | // AcqFile::pkgAcqFile - Constructor /*{{{*/ | |
2178 | // --------------------------------------------------------------------- | |
2179 | /* The file is added to the queue */ | |
2180 | pkgAcqFile::pkgAcqFile(pkgAcquire *Owner,string URI,string Hash, | |
2181 | unsigned long long Size,string Dsc,string ShortDesc, | |
2182 | const string &DestDir, const string &DestFilename, | |
2183 | bool IsIndexFile) : | |
2184 | Item(Owner), ExpectedHash(Hash), IsIndexFile(IsIndexFile) | |
2185 | { | |
2186 | Retries = _config->FindI("Acquire::Retries",0); | |
2187 | ||
2188 | if(!DestFilename.empty()) | |
2189 | DestFile = DestFilename; | |
2190 | else if(!DestDir.empty()) | |
2191 | DestFile = DestDir + "/" + flNotDir(URI); | |
2192 | else | |
2193 | DestFile = flNotDir(URI); | |
2194 | ||
2195 | // Create the item | |
2196 | Desc.URI = URI; | |
2197 | Desc.Description = Dsc; | |
2198 | Desc.Owner = this; | |
2199 | ||
2200 | // Set the short description to the archive component | |
2201 | Desc.ShortDesc = ShortDesc; | |
2202 | ||
2203 | // Get the transfer sizes | |
2204 | FileSize = Size; | |
2205 | struct stat Buf; | |
2206 | if (stat(DestFile.c_str(),&Buf) == 0) | |
2207 | { | |
2208 | // Hmm, the partial file is too big, erase it | |
2209 | if ((Size > 0) && (unsigned long long)Buf.st_size > Size) | |
2210 | unlink(DestFile.c_str()); | |
2211 | else | |
2212 | PartialSize = Buf.st_size; | |
2213 | } | |
2214 | ||
2215 | QueueURI(Desc); | |
2216 | } | |
2217 | /*}}}*/ | |
2218 | // AcqFile::Done - Item downloaded OK /*{{{*/ | |
2219 | // --------------------------------------------------------------------- | |
2220 | /* */ | |
2221 | void pkgAcqFile::Done(string Message,unsigned long long Size,string CalcHash, | |
2222 | pkgAcquire::MethodConfig *Cnf) | |
2223 | { | |
2224 | Item::Done(Message,Size,CalcHash,Cnf); | |
2225 | ||
2226 | // Check the hash | |
2227 | if(!ExpectedHash.empty() && ExpectedHash.toStr() != CalcHash) | |
2228 | { | |
2229 | RenameOnError(HashSumMismatch); | |
2230 | return; | |
2231 | } | |
2232 | ||
2233 | string FileName = LookupTag(Message,"Filename"); | |
2234 | if (FileName.empty() == true) | |
2235 | { | |
2236 | Status = StatError; | |
2237 | ErrorText = "Method gave a blank filename"; | |
2238 | return; | |
2239 | } | |
2240 | ||
2241 | Complete = true; | |
2242 | ||
2243 | // The files timestamp matches | |
2244 | if (StringToBool(LookupTag(Message,"IMS-Hit"),false) == true) | |
2245 | return; | |
2246 | ||
2247 | // We have to copy it into place | |
2248 | if (FileName != DestFile) | |
2249 | { | |
2250 | Local = true; | |
2251 | if (_config->FindB("Acquire::Source-Symlinks",true) == false || | |
2252 | Cnf->Removable == true) | |
2253 | { | |
2254 | Desc.URI = "copy:" + FileName; | |
2255 | QueueURI(Desc); | |
2256 | return; | |
2257 | } | |
2258 | ||
2259 | // Erase the file if it is a symlink so we can overwrite it | |
2260 | struct stat St; | |
2261 | if (lstat(DestFile.c_str(),&St) == 0) | |
2262 | { | |
2263 | if (S_ISLNK(St.st_mode) != 0) | |
2264 | unlink(DestFile.c_str()); | |
2265 | } | |
2266 | ||
2267 | // Symlink the file | |
2268 | if (symlink(FileName.c_str(),DestFile.c_str()) != 0) | |
2269 | { | |
2270 | ErrorText = "Link to " + DestFile + " failure "; | |
2271 | Status = StatError; | |
2272 | Complete = false; | |
2273 | } | |
2274 | } | |
2275 | } | |
2276 | /*}}}*/ | |
2277 | // AcqFile::Failed - Failure handler /*{{{*/ | |
2278 | // --------------------------------------------------------------------- | |
2279 | /* Here we try other sources */ | |
2280 | void pkgAcqFile::Failed(string Message,pkgAcquire::MethodConfig *Cnf) | |
2281 | { | |
2282 | ErrorText = LookupTag(Message,"Message"); | |
2283 | ||
2284 | // This is the retry counter | |
2285 | if (Retries != 0 && | |
2286 | Cnf->LocalOnly == false && | |
2287 | StringToBool(LookupTag(Message,"Transient-Failure"),false) == true) | |
2288 | { | |
2289 | Retries--; | |
2290 | QueueURI(Desc); | |
2291 | return; | |
2292 | } | |
2293 | ||
2294 | Item::Failed(Message,Cnf); | |
2295 | } | |
2296 | /*}}}*/ | |
2297 | // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/ | |
2298 | // --------------------------------------------------------------------- | |
2299 | /* The only header we use is the last-modified header. */ | |
2300 | string pkgAcqFile::Custom600Headers() | |
2301 | { | |
2302 | if (IsIndexFile) | |
2303 | return "\nIndex-File: true"; | |
2304 | return ""; | |
2305 | } | |
2306 | /*}}}*/ |