1 // -*- mode: cpp; mode: fold -*-
3 // $Id: acquire-item.cc,v 1.46.2.9 2004/01/16 18:51:11 mdz Exp $
4 /* ######################################################################
6 Acquire Item - Item to acquire
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.
13 ##################################################################### */
15 // Include Files /*{{{*/
16 #include <apt-pkg/acquire-item.h>
17 #include <apt-pkg/configuration.h>
18 #include <apt-pkg/aptconfiguration.h>
19 #include <apt-pkg/sourcelist.h>
20 #include <apt-pkg/vendorlist.h>
21 #include <apt-pkg/error.h>
22 #include <apt-pkg/strutl.h>
23 #include <apt-pkg/fileutl.h>
24 #include <apt-pkg/md5.h>
25 #include <apt-pkg/sha1.h>
26 #include <apt-pkg/tagfile.h>
40 // Acquire::Item::Item - Constructor /*{{{*/
41 // ---------------------------------------------------------------------
43 pkgAcquire::Item::Item(pkgAcquire
*Owner
) : Owner(Owner
), FileSize(0),
44 PartialSize(0), Mode(0), ID(0), Complete(false),
45 Local(false), QueueCounter(0)
51 // Acquire::Item::~Item - Destructor /*{{{*/
52 // ---------------------------------------------------------------------
54 pkgAcquire::Item::~Item()
59 // Acquire::Item::Failed - Item failed to download /*{{{*/
60 // ---------------------------------------------------------------------
61 /* We return to an idle state if there are still other queues that could
63 void pkgAcquire::Item::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
)
66 ErrorText
= LookupTag(Message
,"Message");
67 if (QueueCounter
<= 1)
69 /* This indicates that the file is not available right now but might
70 be sometime later. If we do a retry cycle then this should be
72 if (Cnf
->LocalOnly
== true &&
73 StringToBool(LookupTag(Message
,"Transient-Failure"),false) == true)
85 // Acquire::Item::Start - Item has begun to download /*{{{*/
86 // ---------------------------------------------------------------------
87 /* Stash status and the file size. Note that setting Complete means
88 sub-phases of the acquire process such as decompresion are operating */
89 void pkgAcquire::Item::Start(string
/*Message*/,unsigned long Size
)
91 Status
= StatFetching
;
92 if (FileSize
== 0 && Complete
== false)
96 // Acquire::Item::Done - Item downloaded OK /*{{{*/
97 // ---------------------------------------------------------------------
99 void pkgAcquire::Item::Done(string Message
,unsigned long Size
,string Hash
,
100 pkgAcquire::MethodConfig
*Cnf
)
102 // We just downloaded something..
103 string FileName
= LookupTag(Message
,"Filename");
104 // we only inform the Log class if it was actually not a local thing
105 if (Complete
== false && !Local
&& FileName
== DestFile
)
108 Owner
->Log
->Fetched(Size
,atoi(LookupTag(Message
,"Resume-Point","0").c_str()));
115 ErrorText
= string();
116 Owner
->Dequeue(this);
119 // Acquire::Item::Rename - Rename a file /*{{{*/
120 // ---------------------------------------------------------------------
121 /* This helper function is used by alot of item methods as thier final
123 void pkgAcquire::Item::Rename(string From
,string To
)
125 if (rename(From
.c_str(),To
.c_str()) != 0)
128 snprintf(S
,sizeof(S
),_("rename failed, %s (%s -> %s)."),strerror(errno
),
129 From
.c_str(),To
.c_str());
135 // AcqDiffIndex::AcqDiffIndex - Constructor /*{{{*/
136 // ---------------------------------------------------------------------
137 /* Get the DiffIndex file first and see if there are patches availabe
138 * If so, create a pkgAcqIndexDiffs fetcher that will get and apply the
139 * patches. If anything goes wrong in that process, it will fall back to
140 * the original packages file
142 pkgAcqDiffIndex::pkgAcqDiffIndex(pkgAcquire
*Owner
,
143 string URI
,string URIDesc
,string ShortDesc
,
144 HashString ExpectedHash
)
145 : Item(Owner
), RealURI(URI
), ExpectedHash(ExpectedHash
),
149 Debug
= _config
->FindB("Debug::pkgAcquire::Diffs",false);
151 Desc
.Description
= URIDesc
+ "/DiffIndex";
153 Desc
.ShortDesc
= ShortDesc
;
154 Desc
.URI
= URI
+ ".diff/Index";
156 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
157 DestFile
+= URItoFileName(URI
) + string(".DiffIndex");
160 std::clog
<< "pkgAcqDiffIndex: " << Desc
.URI
<< std::endl
;
162 // look for the current package file
163 CurrentPackagesFile
= _config
->FindDir("Dir::State::lists");
164 CurrentPackagesFile
+= URItoFileName(RealURI
);
166 // FIXME: this file:/ check is a hack to prevent fetching
167 // from local sources. this is really silly, and
168 // should be fixed cleanly as soon as possible
169 if(!FileExists(CurrentPackagesFile
) ||
170 Desc
.URI
.substr(0,strlen("file:/")) == "file:/")
172 // we don't have a pkg file or we don't want to queue
174 std::clog
<< "No index file, local or canceld by user" << std::endl
;
180 std::clog
<< "pkgAcqIndexDiffs::pkgAcqIndexDiffs(): "
181 << CurrentPackagesFile
<< std::endl
;
187 // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/
188 // ---------------------------------------------------------------------
189 /* The only header we use is the last-modified header. */
190 string
pkgAcqDiffIndex::Custom600Headers()
192 string Final
= _config
->FindDir("Dir::State::lists");
193 Final
+= URItoFileName(RealURI
) + string(".IndexDiff");
196 std::clog
<< "Custom600Header-IMS: " << Final
<< std::endl
;
199 if (stat(Final
.c_str(),&Buf
) != 0)
200 return "\nIndex-File: true";
202 return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf
.st_mtime
);
205 bool pkgAcqDiffIndex::ParseDiffIndex(string IndexDiffFile
) /*{{{*/
208 std::clog
<< "pkgAcqIndexDiffs::ParseIndexDiff() " << IndexDiffFile
213 vector
<DiffInfo
> available_patches
;
215 FileFd
Fd(IndexDiffFile
,FileFd::ReadOnly
);
217 if (_error
->PendingError() == true)
220 if(TF
.Step(Tags
) == true)
226 string
const tmp
= Tags
.FindS("SHA1-Current");
227 std::stringstream
ss(tmp
);
228 ss
>> ServerSha1
>> size
;
229 unsigned long const ServerSize
= atol(size
.c_str());
231 FileFd
fd(CurrentPackagesFile
, FileFd::ReadOnly
);
233 SHA1
.AddFD(fd
.Fd(), fd
.Size());
234 string
const local_sha1
= SHA1
.Result();
236 if(local_sha1
== ServerSha1
)
238 // we have the same sha1 as the server
240 std::clog
<< "Package file is up-to-date" << std::endl
;
241 // set found to true, this will queue a pkgAcqIndexDiffs with
242 // a empty availabe_patches
248 std::clog
<< "SHA1-Current: " << ServerSha1
<< std::endl
;
250 // check the historie and see what patches we need
251 string
const history
= Tags
.FindS("SHA1-History");
252 std::stringstream
hist(history
);
253 while(hist
>> d
.sha1
>> size
>> d
.file
)
255 // read until the first match is found
256 // from that point on, we probably need all diffs
257 if(d
.sha1
== local_sha1
)
259 else if (found
== false)
263 std::clog
<< "Need to get diff: " << d
.file
<< std::endl
;
264 available_patches
.push_back(d
);
267 if (available_patches
.empty() == false)
269 // patching with too many files is rather slow compared to a fast download
270 unsigned long const fileLimit
= _config
->FindI("Acquire::PDiffs::FileLimit", 0);
271 if (fileLimit
!= 0 && fileLimit
< available_patches
.size())
274 std::clog
<< "Need " << available_patches
.size() << " diffs (Limit is " << fileLimit
275 << ") so fallback to complete download" << std::endl
;
279 // see if the patches are too big
280 found
= false; // it was true and it will be true again at the end
281 d
= *available_patches
.begin();
282 string
const firstPatch
= d
.file
;
283 unsigned long patchesSize
= 0;
284 std::stringstream
patches(Tags
.FindS("SHA1-Patches"));
285 while(patches
>> d
.sha1
>> size
>> d
.file
)
287 if (firstPatch
== d
.file
)
289 else if (found
== false)
292 patchesSize
+= atol(size
.c_str());
294 unsigned long const sizeLimit
= ServerSize
* _config
->FindI("Acquire::PDiffs::SizeLimit", 100);
295 if (sizeLimit
> 0 && (sizeLimit
/100) < patchesSize
)
298 std::clog
<< "Need " << patchesSize
<< " bytes (Limit is " << sizeLimit
/100
299 << ") so fallback to complete download" << std::endl
;
305 // we have something, queue the next diff
309 string::size_type
const last_space
= Description
.rfind(" ");
310 if(last_space
!= string::npos
)
311 Description
.erase(last_space
, Description
.size()-last_space
);
312 new pkgAcqIndexDiffs(Owner
, RealURI
, Description
, Desc
.ShortDesc
,
313 ExpectedHash
, ServerSha1
, available_patches
);
321 // Nothing found, report and return false
322 // Failing here is ok, if we return false later, the full
323 // IndexFile is queued
325 std::clog
<< "Can't find a patch in the index file" << std::endl
;
329 void pkgAcqDiffIndex::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
) /*{{{*/
332 std::clog
<< "pkgAcqDiffIndex failed: " << Desc
.URI
<< std::endl
333 << "Falling back to normal index file aquire" << std::endl
;
335 new pkgAcqIndex(Owner
, RealURI
, Description
, Desc
.ShortDesc
,
343 void pkgAcqDiffIndex::Done(string Message
,unsigned long Size
,string Md5Hash
, /*{{{*/
344 pkgAcquire::MethodConfig
*Cnf
)
347 std::clog
<< "pkgAcqDiffIndex::Done(): " << Desc
.URI
<< std::endl
;
349 Item::Done(Message
,Size
,Md5Hash
,Cnf
);
352 FinalFile
= _config
->FindDir("Dir::State::lists")+URItoFileName(RealURI
);
354 // sucess in downloading the index
356 FinalFile
+= string(".IndexDiff");
358 std::clog
<< "Renaming: " << DestFile
<< " -> " << FinalFile
360 Rename(DestFile
,FinalFile
);
361 chmod(FinalFile
.c_str(),0644);
362 DestFile
= FinalFile
;
364 if(!ParseDiffIndex(DestFile
))
365 return Failed("", NULL
);
373 // AcqIndexDiffs::AcqIndexDiffs - Constructor /*{{{*/
374 // ---------------------------------------------------------------------
375 /* The package diff is added to the queue. one object is constructed
376 * for each diff and the index
378 pkgAcqIndexDiffs::pkgAcqIndexDiffs(pkgAcquire
*Owner
,
379 string URI
,string URIDesc
,string ShortDesc
,
380 HashString ExpectedHash
,
382 vector
<DiffInfo
> diffs
)
383 : Item(Owner
), RealURI(URI
), ExpectedHash(ExpectedHash
),
384 available_patches(diffs
), ServerSha1(ServerSha1
)
387 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
388 DestFile
+= URItoFileName(URI
);
390 Debug
= _config
->FindB("Debug::pkgAcquire::Diffs",false);
392 Description
= URIDesc
;
394 Desc
.ShortDesc
= ShortDesc
;
396 if(available_patches
.size() == 0)
398 // we are done (yeah!)
404 State
= StateFetchDiff
;
409 void pkgAcqIndexDiffs::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
) /*{{{*/
412 std::clog
<< "pkgAcqIndexDiffs failed: " << Desc
.URI
<< std::endl
413 << "Falling back to normal index file aquire" << std::endl
;
414 new pkgAcqIndex(Owner
, RealURI
, Description
,Desc
.ShortDesc
,
419 // Finish - helper that cleans the item out of the fetcher queue /*{{{*/
420 void pkgAcqIndexDiffs::Finish(bool allDone
)
422 // we restore the original name, this is required, otherwise
423 // the file will be cleaned
426 DestFile
= _config
->FindDir("Dir::State::lists");
427 DestFile
+= URItoFileName(RealURI
);
429 if(!ExpectedHash
.empty() && !ExpectedHash
.VerifyFile(DestFile
))
431 Status
= StatAuthError
;
432 ErrorText
= _("MD5Sum mismatch");
433 Rename(DestFile
,DestFile
+ ".FAILED");
438 // this is for the "real" finish
443 std::clog
<< "\n\nallDone: " << DestFile
<< "\n" << std::endl
;
448 std::clog
<< "Finishing: " << Desc
.URI
<< std::endl
;
455 bool pkgAcqIndexDiffs::QueueNextDiff() /*{{{*/
458 // calc sha1 of the just patched file
459 string FinalFile
= _config
->FindDir("Dir::State::lists");
460 FinalFile
+= URItoFileName(RealURI
);
462 FileFd
fd(FinalFile
, FileFd::ReadOnly
);
464 SHA1
.AddFD(fd
.Fd(), fd
.Size());
465 string local_sha1
= string(SHA1
.Result());
467 std::clog
<< "QueueNextDiff: "
468 << FinalFile
<< " (" << local_sha1
<< ")"<<std::endl
;
470 // final file reached before all patches are applied
471 if(local_sha1
== ServerSha1
)
477 // remove all patches until the next matching patch is found
478 // this requires the Index file to be ordered
479 for(vector
<DiffInfo
>::iterator I
=available_patches
.begin();
480 available_patches
.size() > 0 &&
481 I
!= available_patches
.end() &&
482 (*I
).sha1
!= local_sha1
;
485 available_patches
.erase(I
);
488 // error checking and falling back if no patch was found
489 if(available_patches
.size() == 0)
495 // queue the right diff
496 Desc
.URI
= string(RealURI
) + ".diff/" + available_patches
[0].file
+ ".gz";
497 Desc
.Description
= Description
+ " " + available_patches
[0].file
+ string(".pdiff");
498 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
499 DestFile
+= URItoFileName(RealURI
+ ".diff/" + available_patches
[0].file
);
502 std::clog
<< "pkgAcqIndexDiffs::QueueNextDiff(): " << Desc
.URI
<< std::endl
;
509 void pkgAcqIndexDiffs::Done(string Message
,unsigned long Size
,string Md5Hash
, /*{{{*/
510 pkgAcquire::MethodConfig
*Cnf
)
513 std::clog
<< "pkgAcqIndexDiffs::Done(): " << Desc
.URI
<< std::endl
;
515 Item::Done(Message
,Size
,Md5Hash
,Cnf
);
518 FinalFile
= _config
->FindDir("Dir::State::lists")+URItoFileName(RealURI
);
520 // sucess in downloading a diff, enter ApplyDiff state
521 if(State
== StateFetchDiff
)
525 std::clog
<< "Sending to gzip method: " << FinalFile
<< std::endl
;
527 string FileName
= LookupTag(Message
,"Filename");
528 State
= StateUnzipDiff
;
530 Desc
.URI
= "gzip:" + FileName
;
531 DestFile
+= ".decomp";
537 // sucess in downloading a diff, enter ApplyDiff state
538 if(State
== StateUnzipDiff
)
541 // rred excepts the patch as $FinalFile.ed
542 Rename(DestFile
,FinalFile
+".ed");
545 std::clog
<< "Sending to rred method: " << FinalFile
<< std::endl
;
547 State
= StateApplyDiff
;
549 Desc
.URI
= "rred:" + FinalFile
;
556 // success in download/apply a diff, queue next (if needed)
557 if(State
== StateApplyDiff
)
559 // remove the just applied patch
560 available_patches
.erase(available_patches
.begin());
565 std::clog
<< "Moving patched file in place: " << std::endl
566 << DestFile
<< " -> " << FinalFile
<< std::endl
;
568 Rename(DestFile
,FinalFile
);
569 chmod(FinalFile
.c_str(),0644);
571 // see if there is more to download
572 if(available_patches
.size() > 0) {
573 new pkgAcqIndexDiffs(Owner
, RealURI
, Description
, Desc
.ShortDesc
,
574 ExpectedHash
, ServerSha1
, available_patches
);
581 // AcqIndex::AcqIndex - Constructor /*{{{*/
582 // ---------------------------------------------------------------------
583 /* The package file is added to the queue and a second class is
584 instantiated to fetch the revision file */
585 pkgAcqIndex::pkgAcqIndex(pkgAcquire
*Owner
,
586 string URI
,string URIDesc
,string ShortDesc
,
587 HashString ExpectedHash
, string comprExt
)
588 : Item(Owner
), RealURI(URI
), ExpectedHash(ExpectedHash
)
590 Decompression
= false;
593 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
594 DestFile
+= URItoFileName(URI
);
598 // autoselect the compression method
599 std::vector
<std::string
> types
= APT::Configuration::getCompressionTypes();
600 if (types
.empty() == true)
603 comprExt
= "." + types
[0];
605 CompressionExtension
= ((comprExt
== "plain" || comprExt
== ".") ? "" : comprExt
);
607 Desc
.URI
= URI
+ CompressionExtension
;
609 Desc
.Description
= URIDesc
;
611 Desc
.ShortDesc
= ShortDesc
;
616 // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/
617 // ---------------------------------------------------------------------
618 /* The only header we use is the last-modified header. */
619 string
pkgAcqIndex::Custom600Headers()
621 string Final
= _config
->FindDir("Dir::State::lists");
622 Final
+= URItoFileName(RealURI
);
623 if (_config
->FindB("Acquire::GzipIndexes",false))
627 if (stat(Final
.c_str(),&Buf
) != 0)
628 return "\nIndex-File: true";
630 return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf
.st_mtime
);
633 void pkgAcqIndex::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
) /*{{{*/
635 std::vector
<std::string
> types
= APT::Configuration::getCompressionTypes();
637 for (std::vector
<std::string
>::const_iterator t
= types
.begin();
638 t
!= types
.end(); t
++)
640 // jump over all already tried compression types
641 const unsigned int nameLen
= Desc
.URI
.size() - (*t
).size();
642 if(Desc
.URI
.substr(nameLen
) != *t
)
645 // we want to try it with the next extension (and make sure to
646 // not skip over the end)
648 if (t
== types
.end())
651 // queue new download
652 Desc
.URI
= Desc
.URI
.substr(0, nameLen
) + *t
;
653 new pkgAcqIndex(Owner
, RealURI
, Desc
.Description
, Desc
.ShortDesc
,
654 ExpectedHash
, string(".").append(*t
));
662 // on decompression failure, remove bad versions in partial/
663 if(Decompression
&& Erase
) {
664 string s
= _config
->FindDir("Dir::State::lists") + "partial/";
665 s
+= URItoFileName(RealURI
);
669 Item::Failed(Message
,Cnf
);
672 // AcqIndex::Done - Finished a fetch /*{{{*/
673 // ---------------------------------------------------------------------
674 /* This goes through a number of states.. On the initial fetch the
675 method could possibly return an alternate filename which points
676 to the uncompressed version of the file. If this is so the file
677 is copied into the partial directory. In all other cases the file
678 is decompressed with a gzip uri. */
679 void pkgAcqIndex::Done(string Message
,unsigned long Size
,string Hash
,
680 pkgAcquire::MethodConfig
*Cfg
)
682 Item::Done(Message
,Size
,Hash
,Cfg
);
684 if (Decompression
== true)
686 if (_config
->FindB("Debug::pkgAcquire::Auth", false))
688 std::cerr
<< std::endl
<< RealURI
<< ": Computed Hash: " << Hash
;
689 std::cerr
<< " Expected Hash: " << ExpectedHash
.toStr() << std::endl
;
692 if (!ExpectedHash
.empty() && ExpectedHash
.toStr() != Hash
)
694 Status
= StatAuthError
;
695 ErrorText
= _("Hash Sum mismatch");
696 Rename(DestFile
,DestFile
+ ".FAILED");
699 // Done, move it into position
700 string FinalFile
= _config
->FindDir("Dir::State::lists");
701 FinalFile
+= URItoFileName(RealURI
);
702 Rename(DestFile
,FinalFile
);
703 chmod(FinalFile
.c_str(),0644);
705 /* We restore the original name to DestFile so that the clean operation
707 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
708 DestFile
+= URItoFileName(RealURI
);
710 // Remove the compressed version.
712 unlink(DestFile
.c_str());
719 string compExt
= flExtension(flNotDir(URI(Desc
.URI
).Path
));
721 // If we enable compressed indexes and already have gzip, keep it
722 if (_config
->FindB("Acquire::GzipIndexes",false) && compExt
== "gz") {
723 string FinalFile
= _config
->FindDir("Dir::State::lists");
724 FinalFile
+= URItoFileName(RealURI
) + ".gz";
726 // std::clog << "pkgAcqIndex: keeping gzipped " << FinalFile << endl;
727 Rename(DestFile
,FinalFile
);
728 chmod(FinalFile
.c_str(),0644);
730 // Update DestFile for .gz suffix so that the clean operation keeps it
731 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
732 DestFile
+= URItoFileName(RealURI
) + ".gz";
736 // Handle the unzipd case
737 string FileName
= LookupTag(Message
,"Alt-Filename");
738 if (FileName
.empty() == false)
740 // The files timestamp matches
741 if (StringToBool(LookupTag(Message
,"Alt-IMS-Hit"),false) == true)
743 Decompression
= true;
745 DestFile
+= ".decomp";
746 Desc
.URI
= "copy:" + FileName
;
752 FileName
= LookupTag(Message
,"Filename");
753 if (FileName
.empty() == true)
756 ErrorText
= "Method gave a blank filename";
759 // The files timestamp matches
760 if (StringToBool(LookupTag(Message
,"IMS-Hit"),false) == true)
763 if (FileName
== DestFile
)
770 // get the binary name for your used compression type
771 decompProg
= _config
->Find(string("Acquire::CompressionTypes::").append(compExt
),"");
772 if(decompProg
.empty() == false);
773 // flExtensions returns the full name if no extension is found
774 // this is why we have this complicated compare operation here
775 // FIMXE: add a new flJustExtension() that return "" if no
776 // extension is found and use that above so that it can
777 // be tested against ""
778 else if(compExt
== flNotDir(URI(Desc
.URI
).Path
))
781 _error
->Error("Unsupported extension: %s", compExt
.c_str());
785 Decompression
= true;
786 DestFile
+= ".decomp";
787 Desc
.URI
= decompProg
+ ":" + FileName
;
789 Mode
= decompProg
.c_str();
792 // AcqIndexTrans::pkgAcqIndexTrans - Constructor /*{{{*/
793 // ---------------------------------------------------------------------
794 /* The Translation file is added to the queue */
795 pkgAcqIndexTrans::pkgAcqIndexTrans(pkgAcquire
*Owner
,
796 string URI
,string URIDesc
,string ShortDesc
)
797 : pkgAcqIndex(Owner
, URI
, URIDesc
, ShortDesc
, HashString(), "")
801 // AcqIndexTrans::Failed - Silence failure messages for missing files /*{{{*/
802 // ---------------------------------------------------------------------
804 void pkgAcqIndexTrans::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
)
806 if (Cnf
->LocalOnly
== true ||
807 StringToBool(LookupTag(Message
,"Transient-Failure"),false) == false)
816 Item::Failed(Message
,Cnf
);
819 pkgAcqMetaSig::pkgAcqMetaSig(pkgAcquire
*Owner
, /*{{{*/
820 string URI
,string URIDesc
,string ShortDesc
,
821 string MetaIndexURI
, string MetaIndexURIDesc
,
822 string MetaIndexShortDesc
,
823 const vector
<IndexTarget
*>* IndexTargets
,
824 indexRecords
* MetaIndexParser
) :
825 Item(Owner
), RealURI(URI
), MetaIndexURI(MetaIndexURI
),
826 MetaIndexURIDesc(MetaIndexURIDesc
), MetaIndexShortDesc(MetaIndexShortDesc
),
827 MetaIndexParser(MetaIndexParser
), IndexTargets(IndexTargets
)
829 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
830 DestFile
+= URItoFileName(URI
);
832 // remove any partial downloaded sig-file in partial/.
833 // it may confuse proxies and is too small to warrant a
834 // partial download anyway
835 unlink(DestFile
.c_str());
838 Desc
.Description
= URIDesc
;
840 Desc
.ShortDesc
= ShortDesc
;
843 string Final
= _config
->FindDir("Dir::State::lists");
844 Final
+= URItoFileName(RealURI
);
846 if (stat(Final
.c_str(),&Buf
) == 0)
848 // File was already in place. It needs to be re-downloaded/verified
849 // because Release might have changed, we do give it a differnt
850 // name than DestFile because otherwise the http method will
851 // send If-Range requests and there are too many broken servers
852 // out there that do not understand them
853 LastGoodSig
= DestFile
+".reverify";
854 Rename(Final
,LastGoodSig
);
860 // pkgAcqMetaSig::Custom600Headers - Insert custom request headers /*{{{*/
861 // ---------------------------------------------------------------------
862 /* The only header we use is the last-modified header. */
863 string
pkgAcqMetaSig::Custom600Headers()
866 if (stat(LastGoodSig
.c_str(),&Buf
) != 0)
867 return "\nIndex-File: true";
869 return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf
.st_mtime
);
872 void pkgAcqMetaSig::Done(string Message
,unsigned long Size
,string MD5
,
873 pkgAcquire::MethodConfig
*Cfg
)
875 Item::Done(Message
,Size
,MD5
,Cfg
);
877 string FileName
= LookupTag(Message
,"Filename");
878 if (FileName
.empty() == true)
881 ErrorText
= "Method gave a blank filename";
885 if (FileName
!= DestFile
)
887 // We have to copy it into place
889 Desc
.URI
= "copy:" + FileName
;
896 // put the last known good file back on i-m-s hit (it will
897 // be re-verified again)
898 // Else do nothing, we have the new file in DestFile then
899 if(StringToBool(LookupTag(Message
,"IMS-Hit"),false) == true)
900 Rename(LastGoodSig
, DestFile
);
902 // queue a pkgAcqMetaIndex to be verified against the sig we just retrieved
903 new pkgAcqMetaIndex(Owner
, MetaIndexURI
, MetaIndexURIDesc
, MetaIndexShortDesc
,
904 DestFile
, IndexTargets
, MetaIndexParser
);
908 void pkgAcqMetaSig::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
)/*{{{*/
910 string Final
= _config
->FindDir("Dir::State::lists") + URItoFileName(RealURI
);
912 // if we get a network error we fail gracefully
913 if(Status
== StatTransientNetworkError
)
915 Item::Failed(Message
,Cnf
);
916 // move the sigfile back on transient network failures
917 if(FileExists(DestFile
))
918 Rename(LastGoodSig
,Final
);
920 // set the status back to , Item::Failed likes to reset it
921 Status
= pkgAcquire::Item::StatTransientNetworkError
;
925 // Delete any existing sigfile when the acquire failed
926 unlink(Final
.c_str());
928 // queue a pkgAcqMetaIndex with no sigfile
929 new pkgAcqMetaIndex(Owner
, MetaIndexURI
, MetaIndexURIDesc
, MetaIndexShortDesc
,
930 "", IndexTargets
, MetaIndexParser
);
932 if (Cnf
->LocalOnly
== true ||
933 StringToBool(LookupTag(Message
,"Transient-Failure"),false) == false)
942 Item::Failed(Message
,Cnf
);
945 pkgAcqMetaIndex::pkgAcqMetaIndex(pkgAcquire
*Owner
, /*{{{*/
946 string URI
,string URIDesc
,string ShortDesc
,
948 const vector
<struct IndexTarget
*>* IndexTargets
,
949 indexRecords
* MetaIndexParser
) :
950 Item(Owner
), RealURI(URI
), SigFile(SigFile
), IndexTargets(IndexTargets
),
951 MetaIndexParser(MetaIndexParser
), AuthPass(false), IMSHit(false)
953 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
954 DestFile
+= URItoFileName(URI
);
957 Desc
.Description
= URIDesc
;
959 Desc
.ShortDesc
= ShortDesc
;
965 // pkgAcqMetaIndex::Custom600Headers - Insert custom request headers /*{{{*/
966 // ---------------------------------------------------------------------
967 /* The only header we use is the last-modified header. */
968 string
pkgAcqMetaIndex::Custom600Headers()
970 string Final
= _config
->FindDir("Dir::State::lists");
971 Final
+= URItoFileName(RealURI
);
974 if (stat(Final
.c_str(),&Buf
) != 0)
975 return "\nIndex-File: true";
977 return "\nIndex-File: true\nLast-Modified: " + TimeRFC1123(Buf
.st_mtime
);
980 void pkgAcqMetaIndex::Done(string Message
,unsigned long Size
,string Hash
, /*{{{*/
981 pkgAcquire::MethodConfig
*Cfg
)
983 Item::Done(Message
,Size
,Hash
,Cfg
);
985 // MetaIndexes are done in two passes: one to download the
986 // metaindex with an appropriate method, and a second to verify it
987 // with the gpgv method
989 if (AuthPass
== true)
995 RetrievalDone(Message
);
997 // Still more retrieving to do
1002 // There was no signature file, so we are finished. Download
1003 // the indexes without verification.
1004 QueueIndexes(false);
1008 // There was a signature file, so pass it to gpgv for
1011 if (_config
->FindB("Debug::pkgAcquire::Auth", false))
1012 std::cerr
<< "Metaindex acquired, queueing gpg verification ("
1013 << SigFile
<< "," << DestFile
<< ")\n";
1015 Desc
.URI
= "gpgv:" + SigFile
;
1022 void pkgAcqMetaIndex::RetrievalDone(string Message
) /*{{{*/
1024 // We have just finished downloading a Release file (it is not
1027 string FileName
= LookupTag(Message
,"Filename");
1028 if (FileName
.empty() == true)
1031 ErrorText
= "Method gave a blank filename";
1035 if (FileName
!= DestFile
)
1038 Desc
.URI
= "copy:" + FileName
;
1043 // see if the download was a IMSHit
1044 IMSHit
= StringToBool(LookupTag(Message
,"IMS-Hit"),false);
1047 string FinalFile
= _config
->FindDir("Dir::State::lists");
1048 FinalFile
+= URItoFileName(RealURI
);
1050 // If we get a IMS hit we can remove the empty file in partial
1051 // othersie we move the file in place
1053 unlink(DestFile
.c_str());
1055 Rename(DestFile
,FinalFile
);
1057 chmod(FinalFile
.c_str(),0644);
1058 DestFile
= FinalFile
;
1061 void pkgAcqMetaIndex::AuthDone(string Message
) /*{{{*/
1063 // At this point, the gpgv method has succeeded, so there is a
1064 // valid signature from a key in the trusted keyring. We
1065 // perform additional verification of its contents, and use them
1066 // to verify the indexes we are about to download
1068 if (!MetaIndexParser
->Load(DestFile
))
1070 Status
= StatAuthError
;
1071 ErrorText
= MetaIndexParser
->ErrorText
;
1075 if (!VerifyVendor(Message
))
1080 if (_config
->FindB("Debug::pkgAcquire::Auth", false))
1081 std::cerr
<< "Signature verification succeeded: "
1082 << DestFile
<< std::endl
;
1084 // Download further indexes with verification
1087 // Done, move signature file into position
1089 string VerifiedSigFile
= _config
->FindDir("Dir::State::lists") +
1090 URItoFileName(RealURI
) + ".gpg";
1091 Rename(SigFile
,VerifiedSigFile
);
1092 chmod(VerifiedSigFile
.c_str(),0644);
1095 void pkgAcqMetaIndex::QueueIndexes(bool verify
) /*{{{*/
1097 for (vector
<struct IndexTarget
*>::const_iterator Target
= IndexTargets
->begin();
1098 Target
!= IndexTargets
->end();
1101 HashString ExpectedIndexHash
;
1104 const indexRecords::checkSum
*Record
= MetaIndexParser
->Lookup((*Target
)->MetaKey
);
1107 Status
= StatAuthError
;
1108 ErrorText
= "Unable to find expected entry "
1109 + (*Target
)->MetaKey
+ " in Meta-index file (malformed Release file?)";
1112 ExpectedIndexHash
= Record
->Hash
;
1113 if (_config
->FindB("Debug::pkgAcquire::Auth", false))
1115 std::cerr
<< "Queueing: " << (*Target
)->URI
<< std::endl
;
1116 std::cerr
<< "Expected Hash: " << ExpectedIndexHash
.toStr() << std::endl
;
1118 if (ExpectedIndexHash
.empty())
1120 Status
= StatAuthError
;
1121 ErrorText
= "Unable to find hash sum for "
1122 + (*Target
)->MetaKey
+ " in Meta-index file";
1127 // Queue Packages file (either diff or full packages files, depending
1128 // on the users option)
1129 if(_config
->FindB("Acquire::PDiffs",true) == true)
1130 new pkgAcqDiffIndex(Owner
, (*Target
)->URI
, (*Target
)->Description
,
1131 (*Target
)->ShortDesc
, ExpectedIndexHash
);
1133 new pkgAcqIndex(Owner
, (*Target
)->URI
, (*Target
)->Description
,
1134 (*Target
)->ShortDesc
, ExpectedIndexHash
);
1138 bool pkgAcqMetaIndex::VerifyVendor(string Message
) /*{{{*/
1140 // // Maybe this should be made available from above so we don't have
1141 // // to read and parse it every time?
1142 // pkgVendorList List;
1143 // List.ReadMainList();
1145 // const Vendor* Vndr = NULL;
1146 // for (std::vector<string>::const_iterator I = GPGVOutput.begin(); I != GPGVOutput.end(); I++)
1148 // string::size_type pos = (*I).find("VALIDSIG ");
1149 // if (_config->FindB("Debug::Vendor", false))
1150 // std::cerr << "Looking for VALIDSIG in \"" << (*I) << "\": pos " << pos
1152 // if (pos != std::string::npos)
1154 // string Fingerprint = (*I).substr(pos+sizeof("VALIDSIG"));
1155 // if (_config->FindB("Debug::Vendor", false))
1156 // std::cerr << "Looking for \"" << Fingerprint << "\" in vendor..." <<
1158 // Vndr = List.FindVendor(Fingerprint) != "";
1159 // if (Vndr != NULL);
1163 string::size_type pos
;
1165 // check for missing sigs (that where not fatal because otherwise we had
1168 string msg
= _("There is no public key available for the "
1169 "following key IDs:\n");
1170 pos
= Message
.find("NO_PUBKEY ");
1171 if (pos
!= std::string::npos
)
1173 string::size_type start
= pos
+strlen("NO_PUBKEY ");
1174 string Fingerprint
= Message
.substr(start
, Message
.find("\n")-start
);
1175 missingkeys
+= (Fingerprint
);
1177 if(!missingkeys
.empty())
1178 _error
->Warning("%s", string(msg
+missingkeys
).c_str());
1180 string Transformed
= MetaIndexParser
->GetExpectedDist();
1182 if (Transformed
== "../project/experimental")
1184 Transformed
= "experimental";
1187 pos
= Transformed
.rfind('/');
1188 if (pos
!= string::npos
)
1190 Transformed
= Transformed
.substr(0, pos
);
1193 if (Transformed
== ".")
1198 if (_config
->FindB("Debug::pkgAcquire::Auth", false))
1200 std::cerr
<< "Got Codename: " << MetaIndexParser
->GetDist() << std::endl
;
1201 std::cerr
<< "Expecting Dist: " << MetaIndexParser
->GetExpectedDist() << std::endl
;
1202 std::cerr
<< "Transformed Dist: " << Transformed
<< std::endl
;
1205 if (MetaIndexParser
->CheckDist(Transformed
) == false)
1207 // This might become fatal one day
1208 // Status = StatAuthError;
1209 // ErrorText = "Conflicting distribution; expected "
1210 // + MetaIndexParser->GetExpectedDist() + " but got "
1211 // + MetaIndexParser->GetDist();
1213 if (!Transformed
.empty())
1215 _error
->Warning("Conflicting distribution: %s (expected %s but got %s)",
1216 Desc
.Description
.c_str(),
1217 Transformed
.c_str(),
1218 MetaIndexParser
->GetDist().c_str());
1225 // pkgAcqMetaIndex::Failed - no Release file present or no signature file present /*{{{*/
1226 // ---------------------------------------------------------------------
1228 void pkgAcqMetaIndex::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
)
1230 if (AuthPass
== true)
1232 // if we fail the authentication but got the file via a IMS-Hit
1233 // this means that the file wasn't downloaded and that it might be
1234 // just stale (server problem, proxy etc). we delete what we have
1235 // queue it again without i-m-s
1236 // alternatively we could just unlink the file and let the user try again
1242 unlink(DestFile
.c_str());
1244 DestFile
= _config
->FindDir("Dir::State::lists") + "partial/";
1245 DestFile
+= URItoFileName(RealURI
);
1251 // gpgv method failed
1252 _error
->Warning("GPG error: %s: %s",
1253 Desc
.Description
.c_str(),
1254 LookupTag(Message
,"Message").c_str());
1258 // No Release file was present, or verification failed, so fall
1259 // back to queueing Packages files without verification
1260 QueueIndexes(false);
1263 // AcqArchive::AcqArchive - Constructor /*{{{*/
1264 // ---------------------------------------------------------------------
1265 /* This just sets up the initial fetch environment and queues the first
1267 pkgAcqArchive::pkgAcqArchive(pkgAcquire
*Owner
,pkgSourceList
*Sources
,
1268 pkgRecords
*Recs
,pkgCache::VerIterator
const &Version
,
1269 string
&StoreFilename
) :
1270 Item(Owner
), Version(Version
), Sources(Sources
), Recs(Recs
),
1271 StoreFilename(StoreFilename
), Vf(Version
.FileList()),
1274 Retries
= _config
->FindI("Acquire::Retries",0);
1276 if (Version
.Arch() == 0)
1278 _error
->Error(_("I wasn't able to locate a file for the %s package. "
1279 "This might mean you need to manually fix this package. "
1280 "(due to missing arch)"),
1281 Version
.ParentPkg().Name());
1285 /* We need to find a filename to determine the extension. We make the
1286 assumption here that all the available sources for this version share
1287 the same extension.. */
1288 // Skip not source sources, they do not have file fields.
1289 for (; Vf
.end() == false; Vf
++)
1291 if ((Vf
.File()->Flags
& pkgCache::Flag::NotSource
) != 0)
1296 // Does not really matter here.. we are going to fail out below
1297 if (Vf
.end() != true)
1299 // If this fails to get a file name we will bomb out below.
1300 pkgRecords::Parser
&Parse
= Recs
->Lookup(Vf
);
1301 if (_error
->PendingError() == true)
1304 // Generate the final file name as: package_version_arch.foo
1305 StoreFilename
= QuoteString(Version
.ParentPkg().Name(),"_:") + '_' +
1306 QuoteString(Version
.VerStr(),"_:") + '_' +
1307 QuoteString(Version
.Arch(),"_:.") +
1308 "." + flExtension(Parse
.FileName());
1311 // check if we have one trusted source for the package. if so, switch
1312 // to "TrustedOnly" mode
1313 for (pkgCache::VerFileIterator i
= Version
.FileList(); i
.end() == false; i
++)
1315 pkgIndexFile
*Index
;
1316 if (Sources
->FindIndex(i
.File(),Index
) == false)
1318 if (_config
->FindB("Debug::pkgAcquire::Auth", false))
1320 std::cerr
<< "Checking index: " << Index
->Describe()
1321 << "(Trusted=" << Index
->IsTrusted() << ")\n";
1323 if (Index
->IsTrusted()) {
1329 // "allow-unauthenticated" restores apts old fetching behaviour
1330 // that means that e.g. unauthenticated file:// uris are higher
1331 // priority than authenticated http:// uris
1332 if (_config
->FindB("APT::Get::AllowUnauthenticated",false) == true)
1336 if (QueueNext() == false && _error
->PendingError() == false)
1337 _error
->Error(_("I wasn't able to locate file for the %s package. "
1338 "This might mean you need to manually fix this package."),
1339 Version
.ParentPkg().Name());
1342 // AcqArchive::QueueNext - Queue the next file source /*{{{*/
1343 // ---------------------------------------------------------------------
1344 /* This queues the next available file version for download. It checks if
1345 the archive is already available in the cache and stashs the MD5 for
1347 bool pkgAcqArchive::QueueNext()
1349 for (; Vf
.end() == false; Vf
++)
1351 // Ignore not source sources
1352 if ((Vf
.File()->Flags
& pkgCache::Flag::NotSource
) != 0)
1355 // Try to cross match against the source list
1356 pkgIndexFile
*Index
;
1357 if (Sources
->FindIndex(Vf
.File(),Index
) == false)
1360 // only try to get a trusted package from another source if that source
1362 if(Trusted
&& !Index
->IsTrusted())
1365 // Grab the text package record
1366 pkgRecords::Parser
&Parse
= Recs
->Lookup(Vf
);
1367 if (_error
->PendingError() == true)
1370 string PkgFile
= Parse
.FileName();
1371 if(Parse
.SHA256Hash() != "")
1372 ExpectedHash
= HashString("SHA256", Parse
.SHA256Hash());
1373 else if (Parse
.SHA1Hash() != "")
1374 ExpectedHash
= HashString("SHA1", Parse
.SHA1Hash());
1376 ExpectedHash
= HashString("MD5Sum", Parse
.MD5Hash());
1377 if (PkgFile
.empty() == true)
1378 return _error
->Error(_("The package index files are corrupted. No Filename: "
1379 "field for package %s."),
1380 Version
.ParentPkg().Name());
1382 Desc
.URI
= Index
->ArchiveURI(PkgFile
);
1383 Desc
.Description
= Index
->ArchiveInfo(Version
);
1385 Desc
.ShortDesc
= Version
.ParentPkg().Name();
1387 // See if we already have the file. (Legacy filenames)
1388 FileSize
= Version
->Size
;
1389 string FinalFile
= _config
->FindDir("Dir::Cache::Archives") + flNotDir(PkgFile
);
1391 if (stat(FinalFile
.c_str(),&Buf
) == 0)
1393 // Make sure the size matches
1394 if ((unsigned)Buf
.st_size
== Version
->Size
)
1399 StoreFilename
= DestFile
= FinalFile
;
1403 /* Hmm, we have a file and its size does not match, this means it is
1404 an old style mismatched arch */
1405 unlink(FinalFile
.c_str());
1408 // Check it again using the new style output filenames
1409 FinalFile
= _config
->FindDir("Dir::Cache::Archives") + flNotDir(StoreFilename
);
1410 if (stat(FinalFile
.c_str(),&Buf
) == 0)
1412 // Make sure the size matches
1413 if ((unsigned)Buf
.st_size
== Version
->Size
)
1418 StoreFilename
= DestFile
= FinalFile
;
1422 /* Hmm, we have a file and its size does not match, this shouldnt
1424 unlink(FinalFile
.c_str());
1427 DestFile
= _config
->FindDir("Dir::Cache::Archives") + "partial/" + flNotDir(StoreFilename
);
1429 // Check the destination file
1430 if (stat(DestFile
.c_str(),&Buf
) == 0)
1432 // Hmm, the partial file is too big, erase it
1433 if ((unsigned)Buf
.st_size
> Version
->Size
)
1434 unlink(DestFile
.c_str());
1436 PartialSize
= Buf
.st_size
;
1441 Desc
.URI
= Index
->ArchiveURI(PkgFile
);
1442 Desc
.Description
= Index
->ArchiveInfo(Version
);
1444 Desc
.ShortDesc
= Version
.ParentPkg().Name();
1453 // AcqArchive::Done - Finished fetching /*{{{*/
1454 // ---------------------------------------------------------------------
1456 void pkgAcqArchive::Done(string Message
,unsigned long Size
,string CalcHash
,
1457 pkgAcquire::MethodConfig
*Cfg
)
1459 Item::Done(Message
,Size
,CalcHash
,Cfg
);
1462 if (Size
!= Version
->Size
)
1465 ErrorText
= _("Size mismatch");
1470 if(ExpectedHash
.toStr() != CalcHash
)
1473 ErrorText
= _("Hash Sum mismatch");
1474 if(FileExists(DestFile
))
1475 Rename(DestFile
,DestFile
+ ".FAILED");
1479 // Grab the output filename
1480 string FileName
= LookupTag(Message
,"Filename");
1481 if (FileName
.empty() == true)
1484 ErrorText
= "Method gave a blank filename";
1490 // Reference filename
1491 if (FileName
!= DestFile
)
1493 StoreFilename
= DestFile
= FileName
;
1498 // Done, move it into position
1499 string FinalFile
= _config
->FindDir("Dir::Cache::Archives");
1500 FinalFile
+= flNotDir(StoreFilename
);
1501 Rename(DestFile
,FinalFile
);
1503 StoreFilename
= DestFile
= FinalFile
;
1507 // AcqArchive::Failed - Failure handler /*{{{*/
1508 // ---------------------------------------------------------------------
1509 /* Here we try other sources */
1510 void pkgAcqArchive::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
)
1512 ErrorText
= LookupTag(Message
,"Message");
1514 /* We don't really want to retry on failed media swaps, this prevents
1515 that. An interesting observation is that permanent failures are not
1517 if (Cnf
->Removable
== true &&
1518 StringToBool(LookupTag(Message
,"Transient-Failure"),false) == true)
1520 // Vf = Version.FileList();
1521 while (Vf
.end() == false) Vf
++;
1522 StoreFilename
= string();
1523 Item::Failed(Message
,Cnf
);
1527 if (QueueNext() == false)
1529 // This is the retry counter
1531 Cnf
->LocalOnly
== false &&
1532 StringToBool(LookupTag(Message
,"Transient-Failure"),false) == true)
1535 Vf
= Version
.FileList();
1536 if (QueueNext() == true)
1540 StoreFilename
= string();
1541 Item::Failed(Message
,Cnf
);
1545 // AcqArchive::IsTrusted - Determine whether this archive comes from a trusted source /*{{{*/
1546 // ---------------------------------------------------------------------
1547 bool pkgAcqArchive::IsTrusted()
1552 // AcqArchive::Finished - Fetching has finished, tidy up /*{{{*/
1553 // ---------------------------------------------------------------------
1555 void pkgAcqArchive::Finished()
1557 if (Status
== pkgAcquire::Item::StatDone
&&
1560 StoreFilename
= string();
1563 // AcqFile::pkgAcqFile - Constructor /*{{{*/
1564 // ---------------------------------------------------------------------
1565 /* The file is added to the queue */
1566 pkgAcqFile::pkgAcqFile(pkgAcquire
*Owner
,string URI
,string Hash
,
1567 unsigned long Size
,string Dsc
,string ShortDesc
,
1568 const string
&DestDir
, const string
&DestFilename
,
1570 Item(Owner
), ExpectedHash(Hash
), IsIndexFile(IsIndexFile
)
1572 Retries
= _config
->FindI("Acquire::Retries",0);
1574 if(!DestFilename
.empty())
1575 DestFile
= DestFilename
;
1576 else if(!DestDir
.empty())
1577 DestFile
= DestDir
+ "/" + flNotDir(URI
);
1579 DestFile
= flNotDir(URI
);
1583 Desc
.Description
= Dsc
;
1586 // Set the short description to the archive component
1587 Desc
.ShortDesc
= ShortDesc
;
1589 // Get the transfer sizes
1592 if (stat(DestFile
.c_str(),&Buf
) == 0)
1594 // Hmm, the partial file is too big, erase it
1595 if ((unsigned)Buf
.st_size
> Size
)
1596 unlink(DestFile
.c_str());
1598 PartialSize
= Buf
.st_size
;
1604 // AcqFile::Done - Item downloaded OK /*{{{*/
1605 // ---------------------------------------------------------------------
1607 void pkgAcqFile::Done(string Message
,unsigned long Size
,string CalcHash
,
1608 pkgAcquire::MethodConfig
*Cnf
)
1610 Item::Done(Message
,Size
,CalcHash
,Cnf
);
1613 if(!ExpectedHash
.empty() && ExpectedHash
.toStr() != CalcHash
)
1616 ErrorText
= "Hash Sum mismatch";
1617 Rename(DestFile
,DestFile
+ ".FAILED");
1621 string FileName
= LookupTag(Message
,"Filename");
1622 if (FileName
.empty() == true)
1625 ErrorText
= "Method gave a blank filename";
1631 // The files timestamp matches
1632 if (StringToBool(LookupTag(Message
,"IMS-Hit"),false) == true)
1635 // We have to copy it into place
1636 if (FileName
!= DestFile
)
1639 if (_config
->FindB("Acquire::Source-Symlinks",true) == false ||
1640 Cnf
->Removable
== true)
1642 Desc
.URI
= "copy:" + FileName
;
1647 // Erase the file if it is a symlink so we can overwrite it
1649 if (lstat(DestFile
.c_str(),&St
) == 0)
1651 if (S_ISLNK(St
.st_mode
) != 0)
1652 unlink(DestFile
.c_str());
1656 if (symlink(FileName
.c_str(),DestFile
.c_str()) != 0)
1658 ErrorText
= "Link to " + DestFile
+ " failure ";
1665 // AcqFile::Failed - Failure handler /*{{{*/
1666 // ---------------------------------------------------------------------
1667 /* Here we try other sources */
1668 void pkgAcqFile::Failed(string Message
,pkgAcquire::MethodConfig
*Cnf
)
1670 ErrorText
= LookupTag(Message
,"Message");
1672 // This is the retry counter
1674 Cnf
->LocalOnly
== false &&
1675 StringToBool(LookupTag(Message
,"Transient-Failure"),false) == true)
1682 Item::Failed(Message
,Cnf
);
1685 // AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/
1686 // ---------------------------------------------------------------------
1687 /* The only header we use is the last-modified header. */
1688 string
pkgAcqFile::Custom600Headers()
1691 return "\nIndex-File: true";