diff options
Diffstat (limited to 'apt-pkg/acquire-item.h')
| -rw-r--r-- | apt-pkg/acquire-item.h | 933 |
1 files changed, 504 insertions, 429 deletions
diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h index f48d2a0d7..07c86f31b 100644 --- a/apt-pkg/acquire-item.h +++ b/apt-pkg/acquire-item.h @@ -46,6 +46,8 @@ class indexRecords; class pkgRecords; class pkgSourceList; +class IndexTarget; +class pkgAcqMetaBase; /** \brief Represents the process by which a pkgAcquire object should {{{ * retrieve a file or a collection of files. @@ -61,6 +63,10 @@ class pkgSourceList; */ class pkgAcquire::Item : public WeakPointable { + friend class pkgAcqMetaBase; + + void *d; + protected: /** \brief The acquire object with which this item is associated. */ @@ -68,15 +74,19 @@ class pkgAcquire::Item : public WeakPointable /** \brief Insert this item into its owner's queue. * + * The method is designed to check if the request would end + * in an IMSHit and if it determines that it would, it isn't + * queueing the Item and instead sets it to completion instantly. + * * \param Item Metadata about this item (its URI and * description). + * \return true if the item was inserted, false if IMSHit was detected */ - inline void QueueURI(ItemDesc &Item) - {Owner->Enqueue(Item);}; + virtual bool QueueURI(ItemDesc &Item); /** \brief Remove this item from its owner's queue. */ - inline void Dequeue() {Owner->Dequeue(this);}; - + void Dequeue(); + /** \brief Rename a file without modifying its timestamp. * * Many item methods call this as their final action. @@ -86,7 +96,10 @@ class pkgAcquire::Item : public WeakPointable * \param To The new name of \a From. If \a To exists it will be * overwritten. */ - void Rename(std::string From,std::string To); + bool Rename(std::string From,std::string To); + + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; public: @@ -115,7 +128,7 @@ class pkgAcquire::Item : public WeakPointable /** \brief The item was could not be downloaded because of * a transient network error (e.g. network down) */ - StatTransientNetworkError + StatTransientNetworkError, } Status; /** \brief Contains a textual description of the error encountered @@ -132,7 +145,12 @@ class pkgAcquire::Item : public WeakPointable /** \brief If not \b NULL, contains the name of a subprocess that * is operating on this object (for instance, "gzip" or "gpgv"). */ - const char *Mode; + APT_DEPRECATED const char *Mode; + + /** \brief contains the name of the subprocess that is operating on this object + * (for instance, "gzip", "rred" or "gpgv"). This is obsoleting #Mode from above + * as it can manage the lifetime of included string properly. */ + std::string ActiveSubprocess; /** \brief A client-supplied unique identifier. * @@ -166,12 +184,28 @@ class pkgAcquire::Item : public WeakPointable * \sa pkgAcquire */ unsigned int QueueCounter; + + /** \brief TransactionManager */ + pkgAcqMetaBase *TransactionManager; + + /** \brief The number of additional fetch items that are expected + * once this item is done. + * + * Some items like pkgAcqMeta{Index,Sig} will queue additional + * items. This variable can be set by the methods if it knows + * in advance how many items to expect to get a more accurate + * progress. + */ + unsigned int ExpectedAdditionalItems; /** \brief The name of the file into which the retrieved object * will be written. */ std::string DestFile; + /** \brief storge name until a transaction is finished */ + std::string PartialFile; + /** \brief Invoked by the acquire worker when the object couldn't * be fetched. * @@ -201,12 +235,12 @@ class pkgAcquire::Item : public WeakPointable * \param Message Data from the acquire method. Use LookupTag() * to parse it. * \param Size The size of the object that was fetched. - * \param Hash The HashSum of the object that was fetched. + * \param Hashes The HashSums of the object that was fetched. * \param Cnf The method via which the object was fetched. * * \sa pkgAcqMethod */ - virtual void Done(std::string Message,unsigned long long Size,std::string Hash, + virtual void Done(std::string Message, unsigned long long Size, HashStringList const &Hashes, pkgAcquire::MethodConfig *Cnf); /** \brief Invoked when the worker starts to fetch this object. @@ -228,7 +262,11 @@ class pkgAcquire::Item : public WeakPointable * line, so they should (if nonempty) have a leading newline and * no trailing newline. */ +#if APT_PKG_ABI >= 413 + virtual std::string Custom600Headers() const {return std::string();}; +#else virtual std::string Custom600Headers() {return std::string();}; +#endif /** \brief A "descriptive" URI-like string. * @@ -244,20 +282,27 @@ class pkgAcquire::Item : public WeakPointable /** \brief Invoked by the worker when the download is completely done. */ virtual void Finished() {}; - /** \brief HashSum + /** \brief HashSums * - * \return the HashSum of this object, if applicable; otherwise, an - * empty string. + * \return the HashSums of this object, if applicable; otherwise, an + * empty list. */ - virtual std::string HashSum() {return std::string();}; + HashStringList HashSums() const {return ExpectedHashes;}; + std::string HashSum() const {HashStringList const hashes = HashSums(); HashString const * const hs = hashes.find(NULL); return hs != NULL ? hs->toStr() : ""; }; /** \return the acquire process with which this item is associated. */ + pkgAcquire *GetOwner() const {return Owner;}; +#if APT_PKG_ABI < 413 pkgAcquire *GetOwner() {return Owner;}; +#endif /** \return \b true if this object is being fetched from a trusted source. */ +#if APT_PKG_ABI >= 413 + virtual bool IsTrusted() const {return false;}; +#else virtual bool IsTrusted() {return false;}; +#endif - // report mirror problems /** \brief Report mirror problem * * This allows reporting mirror failures back to a centralized @@ -267,6 +312,11 @@ class pkgAcquire::Item : public WeakPointable */ void ReportMirrorFailure(std::string FailCode); + /** \brief Set the name of the current active subprocess + * + * See also #ActiveSubprocess + */ + void SetActiveSubprocess(const std::string &subprocess); /** \brief Initialize an item. * @@ -274,12 +324,12 @@ class pkgAcquire::Item : public WeakPointable * process, but does not place it into any fetch queues (you must * manually invoke QueueURI() to do so). * - * Initializes all fields of the item other than Owner to 0, - * false, or the empty string. - * * \param Owner The new owner of this item. + * \param ExpectedHashes of the file represented by this item */ - Item(pkgAcquire *Owner); + Item(pkgAcquire *Owner, + HashStringList const &ExpectedHashes=HashStringList(), + pkgAcqMetaBase *TransactionManager=NULL); /** \brief Remove this item from its owner's queue by invoking * pkgAcquire::Remove. @@ -291,7 +341,11 @@ class pkgAcquire::Item : public WeakPointable enum RenameOnErrorState { HashSumMismatch, SizeMismatch, - InvalidFormat + InvalidFormat, + SignatureError, + NotClearsigned, + MaximumSizeExceeded, + PDiffError, }; /** \brief Rename failed file and set error @@ -299,62 +353,321 @@ class pkgAcquire::Item : public WeakPointable * \param state respresenting the error we encountered */ bool RenameOnError(RenameOnErrorState const state); + + enum TransactionStates { + TransactionCommit, + TransactionAbort, + }; + virtual bool TransactionState(TransactionStates const state); + + /** \brief The HashSums of the item is supposed to have than done */ + HashStringList ExpectedHashes; + + /** \brief The item that is currently being downloaded. */ + pkgAcquire::ItemDesc Desc; }; /*}}}*/ /** \brief Information about an index patch (aka diff). */ /*{{{*/ -struct DiffInfo { +struct APT_HIDDEN DiffInfo { /** The filename of the diff. */ std::string file; - /** The sha1 hash of the diff. */ - std::string sha1; + /** The hashes of the diff */ + HashStringList result_hashes; - /** The size of the diff. */ - unsigned long size; + /** The hashes of the file after the diff is applied */ + HashStringList patch_hashes; + + /** The size of the file after the diff is applied */ + unsigned long long result_size; + + /** The size of the diff itself */ + unsigned long long patch_size; }; /*}}}*/ -/** \brief An item that is responsible for fetching a SubIndex {{{ - * - * The MetaIndex file includes only records for important indexes - * and records for these SubIndex files so these can carry records - * for addition files like PDiffs and Translations - */ -class pkgAcqSubIndex : public pkgAcquire::Item +class pkgAcqMetaBase : public pkgAcquire::Item /*{{{*/ { + void *d; + protected: - /** \brief If \b true, debugging information will be written to std::clog. */ - bool Debug; + std::vector<Item*> Transaction; - /** \brief The item that is currently being downloaded. */ - pkgAcquire::ItemDesc Desc; + /** \brief A package-system-specific parser for the meta-index file. */ + indexRecords *MetaIndexParser; + indexRecords *LastMetaIndexParser; - /** \brief The Hash that this file should have after download + /** \brief The index files which should be looked up in the meta-index + * and then downloaded. */ - HashString ExpectedHash; + const std::vector<IndexTarget*>* IndexTargets; - public: - // Specialized action members - virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash, - pkgAcquire::MethodConfig *Cnf); - virtual std::string DescURI() {return Desc.URI;}; - virtual std::string Custom600Headers(); - virtual bool ParseIndex(std::string const &IndexFile); + /** \brief If \b true, the index's signature is currently being verified. + */ + bool AuthPass; + + /** \brief The URI of the signature file. Unlike Desc.URI, this is + * never modified; it is used to determine the file that is being + * downloaded. + */ + std::string RealURI; - /** \brief Create a new pkgAcqSubIndex. + /** \brief Starts downloading the individual index files. * - * \param Owner The Acquire object that owns this item. + * \param verify If \b true, only indices whose expected hashsum + * can be determined from the meta-index will be downloaded, and + * the hashsums of indices will be checked (reporting + * #StatAuthError if there is a mismatch). If verify is \b false, + * no hashsum checking will be performed. + */ + void QueueIndexes(bool verify); + + /** \brief Called when a file is finished being retrieved. * - * \param URI The URI of the list file to download. + * If the file was not downloaded to DestFile, a copy process is + * set up to copy it to DestFile; otherwise, Complete is set to \b + * true and the file is moved to its final location. * - * \param URIDesc A long description of the list file to download. + * \param Message The message block received from the fetch + * subprocess. + */ + bool CheckDownloadDone(pkgAcquire::Item * const I, const std::string &Message, HashStringList const &Hashes) const; + + /** \brief Queue the downloaded Signature for verification */ + void QueueForSignatureVerify(pkgAcquire::Item * const I, std::string const &File, std::string const &Signature); + +#if APT_PKG_ABI >= 413 + virtual std::string Custom600Headers() const; +#else + virtual std::string Custom600Headers(); +#endif + + /** \brief Called when authentication succeeded. * - * \param ShortDesc A short description of the list file to download. + * Sanity-checks the authenticated file, queues up the individual + * index files for download, and saves the signature in the lists + * directory next to the authenticated list file. * - * \param ExpectedHash The list file's MD5 signature. + * \param Message The message block received from the fetch + * subprocess. */ - pkgAcqSubIndex(pkgAcquire *Owner, std::string const &URI,std::string const &URIDesc, - std::string const &ShortDesc, HashString const &ExpectedHash); + bool CheckAuthDone(std::string Message); + + /** Check if the current item should fail at this point */ + bool CheckStopAuthentication(pkgAcquire::Item * const I, const std::string &Message); + + /** \brief Check that the release file is a release file for the + * correct distribution. + * + * \return \b true if no fatal errors were encountered. + */ + bool VerifyVendor(std::string Message); + + virtual bool TransactionState(TransactionStates const state); + + public: + // This refers more to the Transaction-Manager than the actual file + bool IMSHit; + + virtual std::string DescURI() {return RealURI; }; + virtual bool QueueURI(pkgAcquire::ItemDesc &Item); + + // transaction code + void Add(Item *I); + void AbortTransaction(); + bool TransactionHasError() APT_PURE; + void CommitTransaction(); + + /** \brief Stage (queue) a copy action when the transaction is committed + */ + void TransactionStageCopy(Item *I, + const std::string &From, + const std::string &To); + /** \brief Stage (queue) a removal action when the transaction is committed + */ + void TransactionStageRemoval(Item *I, const std::string &FinalFile); + + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; + + pkgAcqMetaBase(pkgAcquire *Owner, + const std::vector<IndexTarget*>* IndexTargets, + indexRecords* MetaIndexParser, + std::string const &RealURI, + HashStringList const &ExpectedHashes=HashStringList(), + pkgAcqMetaBase *TransactionManager=NULL); +}; + /*}}}*/ +/** \brief An item that is responsible for downloading the meta-index {{{ + * file (i.e., Release) itself and verifying its signature. + * + * Once the download and verification are complete, the downloads of + * the individual index files are queued up using pkgAcqDiffIndex. + * If the meta-index file had a valid signature, the expected hashsums + * of the index files will be the md5sums listed in the meta-index; + * otherwise, the expected hashsums will be "" (causing the + * authentication of the index files to be bypassed). + */ +class APT_HIDDEN pkgAcqMetaIndex : public pkgAcqMetaBase +{ + void *d; + + protected: + std::string URIDesc; + std::string ShortDesc; + + /** \brief The URI of the meta-index file for the detached signature */ + std::string MetaIndexSigURI; + + /** \brief A "URI-style" description of the meta-index file */ + std::string MetaIndexSigURIDesc; + + /** \brief A brief description of the meta-index file */ + std::string MetaIndexSigShortDesc; + + /** \brief delayed constructor */ + void Init(std::string URIDesc, std::string ShortDesc); + + public: + + // Specialized action members + virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); + virtual void Done(std::string Message,unsigned long long Size, HashStringList const &Hashes, + pkgAcquire::MethodConfig *Cnf); + virtual void Finished(); + + /** \brief Create a new pkgAcqMetaIndex. */ + pkgAcqMetaIndex(pkgAcquire *Owner, + pkgAcqMetaBase *TransactionManager, + std::string URI,std::string URIDesc, std::string ShortDesc, + std::string MetaIndexSigURI, std::string MetaIndexSigURIDesc, std::string MetaIndexSigShortDesc, + const std::vector<IndexTarget*>* IndexTargets, + indexRecords* MetaIndexParser); + + friend class pkgAcqMetaSig; +}; + /*}}}*/ +/** \brief An acquire item that downloads the detached signature {{{ + * of a meta-index (Release) file, then queues up the release + * file itself. + * + * \todo Why protected members? + * + * \sa pkgAcqMetaIndex + */ +class APT_HIDDEN pkgAcqMetaSig : public pkgAcquire::Item +{ + void *d; + + pkgAcqMetaIndex * const MetaIndex; + + /** \brief The file we use to verify the MetaIndexFile with (not always set!) */ + std::string MetaIndexFileSignature; + + protected: + + /** \brief Long URI description used in the acquire system */ + std::string URIDesc; + + /** \brief URI used to get the file */ + std::string RealURI; + + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; + + public: + virtual std::string DescURI() {return RealURI;}; + + // Specialized action members + virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); + virtual void Done(std::string Message,unsigned long long Size, + HashStringList const &Hashes, + pkgAcquire::MethodConfig *Cnf); + + /** \brief Create a new pkgAcqMetaSig. */ + pkgAcqMetaSig(pkgAcquire *Owner, + pkgAcqMetaBase *TransactionManager, + std::string const &URI,std::string const &URIDesc, + std::string const &ShortDesc, pkgAcqMetaIndex * const MetaIndex); + virtual ~pkgAcqMetaSig(); +}; + /*}}}*/ +/** \brief An item repsonsible for downloading clearsigned metaindexes {{{*/ +class APT_HIDDEN pkgAcqMetaClearSig : public pkgAcqMetaIndex +{ + void *d; + + /** \brief The URI of the meta-index file for the detached signature */ + std::string MetaIndexURI; + + /** \brief A "URI-style" description of the meta-index file */ + std::string MetaIndexURIDesc; + + /** \brief A brief description of the meta-index file */ + std::string MetaIndexShortDesc; + + /** \brief The URI of the detached meta-signature file if the clearsigned one failed. */ + std::string MetaSigURI; + + /** \brief A "URI-style" description of the meta-signature file */ + std::string MetaSigURIDesc; + + /** \brief A brief description of the meta-signature file */ + std::string MetaSigShortDesc; + +public: + virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); +#if APT_PKG_ABI >= 413 + virtual std::string Custom600Headers() const; +#else + virtual std::string Custom600Headers(); +#endif + virtual void Done(std::string Message,unsigned long long Size, + HashStringList const &Hashes, + pkgAcquire::MethodConfig *Cnf); + + /** \brief Create a new pkgAcqMetaClearSig. */ + pkgAcqMetaClearSig(pkgAcquire *Owner, + std::string const &URI, std::string const &URIDesc, std::string const &ShortDesc, + std::string const &MetaIndexURI, std::string const &MetaIndexURIDesc, std::string const &MetaIndexShortDesc, + std::string const &MetaSigURI, std::string const &MetaSigURIDesc, std::string const &MetaSigShortDesc, + const std::vector<IndexTarget*>* IndexTargets, + indexRecords* MetaIndexParser); + virtual ~pkgAcqMetaClearSig(); +}; + /*}}}*/ +/** \brief Common base class for all classes that deal with fetching {{{ + indexes + */ +class pkgAcqBaseIndex : public pkgAcquire::Item +{ + void *d; + + protected: + /** \brief Pointer to the IndexTarget data + */ + const struct IndexTarget * Target; + + /** \brief Pointer to the indexRecords parser */ + indexRecords *MetaIndexParser; + + /** \brief The MetaIndex Key */ + std::string MetaKey; + + /** \brief The URI of the index file to recreate at our end (either + * by downloading it or by applying partial patches). + */ + std::string RealURI; + + bool VerifyHashByMetaKey(HashStringList const &Hashes); + + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; + + pkgAcqBaseIndex(pkgAcquire *Owner, + pkgAcqMetaBase *TransactionManager, + struct IndexTarget const * const Target, + HashStringList const &ExpectedHashes, + indexRecords *MetaIndexParser); }; /*}}}*/ /** \brief An item that is responsible for fetching an index file of {{{ @@ -366,25 +679,14 @@ class pkgAcqSubIndex : public pkgAcquire::Item * * \sa pkgAcqIndexDiffs, pkgAcqIndex */ -class pkgAcqDiffIndex : public pkgAcquire::Item +class APT_HIDDEN pkgAcqDiffIndex : public pkgAcqBaseIndex { + void *d; + protected: /** \brief If \b true, debugging information will be written to std::clog. */ bool Debug; - /** \brief The item that is currently being downloaded. */ - pkgAcquire::ItemDesc Desc; - - /** \brief The URI of the index file to recreate at our end (either - * by downloading it or by applying partial patches). - */ - std::string RealURI; - - /** \brief The Hash that the real index file should have after - * all patches have been applied. - */ - HashString ExpectedHash; - /** \brief The index file which will be patched to generate the new * file. */ @@ -395,13 +697,23 @@ class pkgAcqDiffIndex : public pkgAcquire::Item */ std::string Description; + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; + + virtual bool QueueURI(pkgAcquire::ItemDesc &Item); + + virtual bool TransactionState(TransactionStates const state); public: // Specialized action members virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash, + virtual void Done(std::string Message,unsigned long long Size, HashStringList const &Hashes, pkgAcquire::MethodConfig *Cnf); virtual std::string DescURI() {return RealURI + "Index";}; +#if APT_PKG_ABI >= 413 + virtual std::string Custom600Headers() const; +#else virtual std::string Custom600Headers(); +#endif /** \brief Parse the Index file for a set of Packages diffs. * @@ -414,7 +726,6 @@ class pkgAcqDiffIndex : public pkgAcquire::Item * false otherwise. */ bool ParseDiffIndex(std::string IndexDiffFile); - /** \brief Create a new pkgAcqDiffIndex. * @@ -426,10 +737,15 @@ class pkgAcqDiffIndex : public pkgAcquire::Item * * \param ShortDesc A short description of the list file to download. * - * \param ExpectedHash The list file's MD5 signature. + * \param ExpectedHashes The list file's hashsums which are expected. */ - pkgAcqDiffIndex(pkgAcquire *Owner,std::string URI,std::string URIDesc, - std::string ShortDesc, HashString ExpectedHash); + pkgAcqDiffIndex(pkgAcquire *Owner, + pkgAcqMetaBase *TransactionManager, + struct IndexTarget const * const Target, + HashStringList const &ExpectedHashes, + indexRecords *MetaIndexParser); + private: + APT_HIDDEN void QueueOnIMSHit() const; }; /*}}}*/ /** \brief An item that is responsible for fetching client-merge patches {{{ @@ -443,8 +759,10 @@ class pkgAcqDiffIndex : public pkgAcquire::Item * * \sa pkgAcqDiffIndex, pkgAcqIndex */ -class pkgAcqIndexMergeDiffs : public pkgAcquire::Item +class APT_HIDDEN pkgAcqIndexMergeDiffs : public pkgAcqBaseIndex { + void *d; + protected: /** \brief If \b true, debugging output will be written to @@ -452,21 +770,6 @@ class pkgAcqIndexMergeDiffs : public pkgAcquire::Item */ bool Debug; - /** \brief description of the item that is currently being - * downloaded. - */ - pkgAcquire::ItemDesc Desc; - - /** \brief URI of the package index file that is being - * reconstructed. - */ - std::string RealURI; - - /** \brief HashSum of the package index file that is being - * reconstructed. - */ - HashString ExpectedHash; - /** \brief description of the file being downloaded. */ std::string Description; @@ -499,9 +802,8 @@ class pkgAcqIndexMergeDiffs : public pkgAcquire::Item * outright; its arguments are ignored. */ virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - - virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash, - pkgAcquire::MethodConfig *Cnf); + virtual void Done(std::string Message,unsigned long long Size, HashStringList const &Hashes, + pkgAcquire::MethodConfig *Cnf); virtual std::string DescURI() {return RealURI + "Index";}; /** \brief Create an index merge-diff item. @@ -515,7 +817,7 @@ class pkgAcqIndexMergeDiffs : public pkgAcquire::Item * * \param ShortDesc A brief description of this item. * - * \param ExpectedHash The expected md5sum of the completely + * \param ExpectedHashes The expected md5sum of the completely * reconstructed package index file; the index file will be tested * against this value when it is entirely reconstructed. * @@ -525,9 +827,13 @@ class pkgAcqIndexMergeDiffs : public pkgAcquire::Item * \param allPatches contains all related items so that each item can * check if it was the last one to complete the download step */ - pkgAcqIndexMergeDiffs(pkgAcquire *Owner,std::string const &URI,std::string const &URIDesc, - std::string const &ShortDesc, HashString const &ExpectedHash, - DiffInfo const &patch, std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches); + pkgAcqIndexMergeDiffs(pkgAcquire *Owner, + pkgAcqMetaBase *TransactionManager, + struct IndexTarget const * const Target, + HashStringList const &ExpectedHash, + indexRecords *MetaIndexParser, + DiffInfo const &patch, + std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches); }; /*}}}*/ /** \brief An item that is responsible for fetching server-merge patches {{{ @@ -541,8 +847,10 @@ class pkgAcqIndexMergeDiffs : public pkgAcquire::Item * * \sa pkgAcqDiffIndex, pkgAcqIndex */ -class pkgAcqIndexDiffs : public pkgAcquire::Item +class APT_HIDDEN pkgAcqIndexDiffs : public pkgAcqBaseIndex { + void *d; + private: /** \brief Queue up the next diff download. @@ -554,20 +862,20 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item * \return \b true if an applicable diff was found, \b false * otherwise. */ - bool QueueNextDiff(); + APT_HIDDEN bool QueueNextDiff(); /** \brief Handle tasks that must be performed after the item * finishes downloading. * - * Dequeues the item and checks the resulting file's md5sum - * against ExpectedHash after the last patch was applied. + * Dequeues the item and checks the resulting file's hashsums + * against ExpectedHashes after the last patch was applied. * There is no need to check the md5/sha1 after a "normal" * patch because QueueNextDiff() will check the sha1 later. * * \param allDone If \b true, the file was entirely reconstructed, * and its md5sum is verified. */ - void Finish(bool allDone=false); + APT_HIDDEN void Finish(bool allDone=false); protected: @@ -576,21 +884,6 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item */ bool Debug; - /** \brief A description of the item that is currently being - * downloaded. - */ - pkgAcquire::ItemDesc Desc; - - /** \brief The URI of the package index file that is being - * reconstructed. - */ - std::string RealURI; - - /** \brief The HashSum of the package index file that is being - * reconstructed. - */ - HashString ExpectedHash; - /** A description of the file being downloaded. */ std::string Description; @@ -604,9 +897,6 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item */ std::vector<DiffInfo> available_patches; - /** Stop applying patches when reaching that sha1 */ - std::string ServerSha1; - /** The current status of this patch. */ enum DiffState { @@ -632,9 +922,9 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item */ virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash, + virtual void Done(std::string Message,unsigned long long Size, HashStringList const &Hashes, pkgAcquire::MethodConfig *Cnf); - virtual std::string DescURI() {return RealURI + "Index";}; + virtual std::string DescURI() {return RealURI + "IndexDiffs";}; /** \brief Create an index diff item. * @@ -650,19 +940,19 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item * * \param ShortDesc A brief description of this item. * - * \param ExpectedHash The expected md5sum of the completely + * \param ExpectedHashes The expected hashsums of the completely * reconstructed package index file; the index file will be tested * against this value when it is entirely reconstructed. * - * \param ServerSha1 is the sha1sum of the current file on the server - * * \param diffs The remaining diffs from the index of diffs. They * should be ordered so that each diff appears before any diff * that depends on it. */ - pkgAcqIndexDiffs(pkgAcquire *Owner,std::string URI,std::string URIDesc, - std::string ShortDesc, HashString ExpectedHash, - std::string ServerSha1, + pkgAcqIndexDiffs(pkgAcquire *Owner, + pkgAcqMetaBase *TransactionManager, + struct IndexTarget const * const Target, + HashStringList const &ExpectedHash, + indexRecords *MetaIndexParser, std::vector<DiffInfo> diffs=std::vector<DiffInfo>()); }; /*}}}*/ @@ -673,55 +963,77 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item * * \todo Why does pkgAcqIndex have protected members? */ -class pkgAcqIndex : public pkgAcquire::Item +class APT_HIDDEN pkgAcqIndex : public pkgAcqBaseIndex { - protected: + void *d; - /** \brief If \b true, the index file has been decompressed. */ - bool Decompression; + protected: - /** \brief If \b true, the partially downloaded file will be - * removed when the download completes. + /** \brief The stages the method goes through + * + * The method first downloads the indexfile, then its decompressed (or + * copied) and verified */ - bool Erase; + enum AllStages { + STAGE_DOWNLOAD, + STAGE_DECOMPRESS_AND_VERIFY, + }; + AllStages Stage; - /** \brief Verify for correctness by checking if a "Package" - * tag is found in the index. This can be set to - * false for optional index targets - * - */ - // FIXME: instead of a bool it should use a verify string that will - // then be used in the pkgAcqIndex::Done method to ensure that - // the downloaded file contains the expected tag - bool Verify; + /** \brief Handle what needs to be done when the download is done */ + void StageDownloadDone(std::string Message, + HashStringList const &Hashes, + pkgAcquire::MethodConfig *Cfg); - /** \brief The download request that is currently being - * processed. + /** \brief Handle what needs to be done when the decompression/copy is + * done */ - pkgAcquire::ItemDesc Desc; + void StageDecompressDone(std::string Message, + HashStringList const &Hashes, + pkgAcquire::MethodConfig *Cfg); - /** \brief The object that is actually being fetched (minus any - * compression-related extensions). + /** \brief If \b set, this partially downloaded file will be + * removed when the download completes. */ - std::string RealURI; - - /** \brief The expected hashsum of the decompressed index file. */ - HashString ExpectedHash; + std::string EraseFileName; /** \brief The compression-related file extensions that are being * added to the downloaded file one by one if first fails (e.g., "gz bz2"). */ - std::string CompressionExtension; + std::string CompressionExtensions; + + /** \brief The actual compression extension currently used */ + std::string CurrentCompressionExtension; + + /** \brief Do the changes needed to fetch via AptByHash (if needed) */ + void InitByHashIfNeeded(const std::string MetaKey); + + /** \brief Auto select the right compression to use */ + void AutoSelectCompression(); + + /** \brief Schedule file for verification after a IMS hit */ + void ReverifyAfterIMS(); + + /** \brief Validate the downloaded index file */ + bool ValidateFile(const std::string &FileName); + + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; + + virtual bool TransactionState(TransactionStates const state); public: - // Specialized action members virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash, + virtual void Done(std::string Message,unsigned long long Size, + HashStringList const &Hashes, pkgAcquire::MethodConfig *Cnf); +#if APT_PKG_ABI >= 413 + virtual std::string Custom600Headers() const; +#else virtual std::string Custom600Headers(); +#endif virtual std::string DescURI() {return Desc.URI;}; - virtual std::string HashSum() {return ExpectedHash.toStr(); }; /** \brief Create a pkgAcqIndex. * @@ -734,7 +1046,7 @@ class pkgAcqIndex : public pkgAcquire::Item * * \param ShortDesc A brief description of this index file. * - * \param ExpectedHash The expected hashsum of this index file. + * \param ExpectedHashes The expected hashsum of this index file. * * \param compressExt The compression-related extension with which * this index file should be downloaded, or "" to autodetect @@ -743,47 +1055,21 @@ class pkgAcqIndex : public pkgAcquire::Item * fallback is ".gz" or none. */ pkgAcqIndex(pkgAcquire *Owner,std::string URI,std::string URIDesc, - std::string ShortDesc, HashString ExpectedHash, - std::string compressExt=""); - pkgAcqIndex(pkgAcquire *Owner, struct IndexTarget const * const Target, - HashString const &ExpectedHash, indexRecords const *MetaIndexParser); - void Init(std::string const &URI, std::string const &URIDesc, std::string const &ShortDesc); -}; - /*}}}*/ -/** \brief An acquire item that is responsible for fetching a {{{ - * translated index file. - * - * The only difference from pkgAcqIndex is that transient failures - * are suppressed: no error occurs if the translated index file is - * missing. - */ -class pkgAcqIndexTrans : public pkgAcqIndex -{ - public: - - virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual std::string Custom600Headers(); - - /** \brief Create a pkgAcqIndexTrans. - * - * \param Owner The pkgAcquire object with which this item is - * associated. - * - * \param URI The URI of the index file that is to be downloaded. - * - * \param URIDesc A "URI-style" description of this index file. - * - * \param ShortDesc A brief description of this index file. - */ - pkgAcqIndexTrans(pkgAcquire *Owner,std::string URI,std::string URIDesc, - std::string ShortDesc); - pkgAcqIndexTrans(pkgAcquire *Owner, struct IndexTarget const * const Target, - HashString const &ExpectedHash, indexRecords const *MetaIndexParser); + std::string ShortDesc, HashStringList const &ExpectedHashes); + pkgAcqIndex(pkgAcquire *Owner, pkgAcqMetaBase *TransactionManager, + IndexTarget const * const Target, + HashStringList const &ExpectedHash, + indexRecords *MetaIndexParser); + + void Init(std::string const &URI, std::string const &URIDesc, + std::string const &ShortDesc); }; /*}}}*/ /** \brief Information about an index file. */ /*{{{*/ -class IndexTarget +class APT_HIDDEN IndexTarget { + void *d; + public: /** \brief A URI from which the index file can be downloaded. */ std::string URI; @@ -802,230 +1088,18 @@ class IndexTarget virtual bool IsOptional() const { return false; } - virtual bool IsSubIndex() const { - return false; - } }; /*}}}*/ /** \brief Information about an optional index file. */ /*{{{*/ -class OptionalIndexTarget : public IndexTarget +class APT_HIDDEN OptionalIndexTarget : public IndexTarget { + void *d; + virtual bool IsOptional() const { return true; } }; /*}}}*/ -/** \brief Information about an subindex index file. */ /*{{{*/ -class SubIndexTarget : public IndexTarget -{ - virtual bool IsSubIndex() const { - return true; - } -}; - /*}}}*/ -/** \brief Information about an subindex index file. */ /*{{{*/ -class OptionalSubIndexTarget : public OptionalIndexTarget -{ - virtual bool IsSubIndex() const { - return true; - } -}; - /*}}}*/ - -/** \brief An acquire item that downloads the detached signature {{{ - * of a meta-index (Release) file, then queues up the release - * file itself. - * - * \todo Why protected members? - * - * \sa pkgAcqMetaIndex - */ -class pkgAcqMetaSig : public pkgAcquire::Item -{ - protected: - /** \brief The last good signature file */ - std::string LastGoodSig; - - /** \brief The fetch request that is currently being processed. */ - pkgAcquire::ItemDesc Desc; - - /** \brief The URI of the signature file. Unlike Desc.URI, this is - * never modified; it is used to determine the file that is being - * downloaded. - */ - std::string RealURI; - - /** \brief The URI of the meta-index file to be fetched after the signature. */ - std::string MetaIndexURI; - - /** \brief A "URI-style" description of the meta-index file to be - * fetched after the signature. - */ - std::string MetaIndexURIDesc; - - /** \brief A brief description of the meta-index file to be fetched - * after the signature. - */ - std::string MetaIndexShortDesc; - - /** \brief A package-system-specific parser for the meta-index file. */ - indexRecords* MetaIndexParser; - - /** \brief The index files which should be looked up in the meta-index - * and then downloaded. - * - * \todo Why a list of pointers instead of a list of structs? - */ - const std::vector<struct IndexTarget*>* IndexTargets; - - public: - - // Specialized action members - virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string Md5Hash, - pkgAcquire::MethodConfig *Cnf); - virtual std::string Custom600Headers(); - virtual std::string DescURI() {return RealURI; }; - - /** \brief Create a new pkgAcqMetaSig. */ - pkgAcqMetaSig(pkgAcquire *Owner,std::string URI,std::string URIDesc, std::string ShortDesc, - std::string MetaIndexURI, std::string MetaIndexURIDesc, std::string MetaIndexShortDesc, - const std::vector<struct IndexTarget*>* IndexTargets, - indexRecords* MetaIndexParser); - virtual ~pkgAcqMetaSig(); -}; - /*}}}*/ -/** \brief An item that is responsible for downloading the meta-index {{{ - * file (i.e., Release) itself and verifying its signature. - * - * Once the download and verification are complete, the downloads of - * the individual index files are queued up using pkgAcqDiffIndex. - * If the meta-index file had a valid signature, the expected hashsums - * of the index files will be the md5sums listed in the meta-index; - * otherwise, the expected hashsums will be "" (causing the - * authentication of the index files to be bypassed). - */ -class pkgAcqMetaIndex : public pkgAcquire::Item -{ - protected: - /** \brief The fetch command that is currently being processed. */ - pkgAcquire::ItemDesc Desc; - - /** \brief The URI that is actually being downloaded; never - * modified by pkgAcqMetaIndex. - */ - std::string RealURI; - - /** \brief The file in which the signature for this index was stored. - * - * If empty, the signature and the md5sums of the individual - * indices will not be checked. - */ - std::string SigFile; - - /** \brief The index files to download. */ - const std::vector<struct IndexTarget*>* IndexTargets; - - /** \brief The parser for the meta-index file. */ - indexRecords* MetaIndexParser; - - /** \brief If \b true, the index's signature is currently being verified. - */ - bool AuthPass; - // required to deal gracefully with problems caused by incorrect ims hits - bool IMSHit; - - /** \brief Check that the release file is a release file for the - * correct distribution. - * - * \return \b true if no fatal errors were encountered. - */ - bool VerifyVendor(std::string Message); - - /** \brief Called when a file is finished being retrieved. - * - * If the file was not downloaded to DestFile, a copy process is - * set up to copy it to DestFile; otherwise, Complete is set to \b - * true and the file is moved to its final location. - * - * \param Message The message block received from the fetch - * subprocess. - */ - void RetrievalDone(std::string Message); - - /** \brief Called when authentication succeeded. - * - * Sanity-checks the authenticated file, queues up the individual - * index files for download, and saves the signature in the lists - * directory next to the authenticated list file. - * - * \param Message The message block received from the fetch - * subprocess. - */ - void AuthDone(std::string Message); - - /** \brief Starts downloading the individual index files. - * - * \param verify If \b true, only indices whose expected hashsum - * can be determined from the meta-index will be downloaded, and - * the hashsums of indices will be checked (reporting - * #StatAuthError if there is a mismatch). If verify is \b false, - * no hashsum checking will be performed. - */ - void QueueIndexes(bool verify); - - public: - - // Specialized action members - virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size, std::string Hash, - pkgAcquire::MethodConfig *Cnf); - virtual std::string Custom600Headers(); - virtual std::string DescURI() {return RealURI; }; - - /** \brief Create a new pkgAcqMetaIndex. */ - pkgAcqMetaIndex(pkgAcquire *Owner, - std::string URI,std::string URIDesc, std::string ShortDesc, - std::string SigFile, - const std::vector<struct IndexTarget*>* IndexTargets, - indexRecords* MetaIndexParser); -}; - /*}}}*/ -/** \brief An item repsonsible for downloading clearsigned metaindexes {{{*/ -class pkgAcqMetaClearSig : public pkgAcqMetaIndex -{ - /** \brief The URI of the meta-index file for the detached signature */ - std::string MetaIndexURI; - - /** \brief A "URI-style" description of the meta-index file */ - std::string MetaIndexURIDesc; - - /** \brief A brief description of the meta-index file */ - std::string MetaIndexShortDesc; - - /** \brief The URI of the detached meta-signature file if the clearsigned one failed. */ - std::string MetaSigURI; - - /** \brief A "URI-style" description of the meta-signature file */ - std::string MetaSigURIDesc; - - /** \brief A brief description of the meta-signature file */ - std::string MetaSigShortDesc; - -public: - void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual std::string Custom600Headers(); - - /** \brief Create a new pkgAcqMetaClearSig. */ - pkgAcqMetaClearSig(pkgAcquire *Owner, - std::string const &URI, std::string const &URIDesc, std::string const &ShortDesc, - std::string const &MetaIndexURI, std::string const &MetaIndexURIDesc, std::string const &MetaIndexShortDesc, - std::string const &MetaSigURI, std::string const &MetaSigURIDesc, std::string const &MetaSigShortDesc, - const std::vector<struct IndexTarget*>* IndexTargets, - indexRecords* MetaIndexParser); - virtual ~pkgAcqMetaClearSig(); -}; - /*}}}*/ /** \brief An item that is responsible for fetching a package file. {{{ * * If the package file already exists in the cache, nothing will be @@ -1033,13 +1107,12 @@ public: */ class pkgAcqArchive : public pkgAcquire::Item { + void *d; + protected: /** \brief The package version being fetched. */ pkgCache::VerIterator Version; - /** \brief The fetch command that is currently being processed. */ - pkgAcquire::ItemDesc Desc; - /** \brief The list of sources from which to pick archives to * download this package from. */ @@ -1050,9 +1123,6 @@ class pkgAcqArchive : public pkgAcquire::Item */ pkgRecords *Recs; - /** \brief The hashsum of this package. */ - HashString ExpectedHash; - /** \brief A location in which the actual filename of the package * should be stored. */ @@ -1075,18 +1145,24 @@ class pkgAcqArchive : public pkgAcquire::Item /** \brief Queue up the next available file for this version. */ bool QueueNext(); - + + /** \brief Get the full pathname of the final file for the current URI */ + virtual std::string GetFinalFilename() const; + public: - + virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string Hash, + virtual void Done(std::string Message,unsigned long long Size, HashStringList const &Hashes, pkgAcquire::MethodConfig *Cnf); virtual std::string DescURI() {return Desc.URI;}; virtual std::string ShortDesc() {return Desc.ShortDesc;}; virtual void Finished(); - virtual std::string HashSum() {return ExpectedHash.toStr(); }; +#if APT_PKG_ABI >= 413 + virtual bool IsTrusted() const; +#else virtual bool IsTrusted(); - +#endif + /** \brief Create a new pkgAcqArchive. * * \param Owner The pkgAcquire object with which this item is @@ -1118,11 +1194,7 @@ class pkgAcqArchive : public pkgAcquire::Item */ class pkgAcqFile : public pkgAcquire::Item { - /** \brief The currently active download process. */ - pkgAcquire::ItemDesc Desc; - - /** \brief The hashsum of the file to download, if it is known. */ - HashString ExpectedHash; + void *d; /** \brief How many times to retry the download, set from * Acquire::Retries. @@ -1136,11 +1208,14 @@ class pkgAcqFile : public pkgAcquire::Item // Specialized action members virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf); - virtual void Done(std::string Message,unsigned long long Size,std::string CalcHash, + virtual void Done(std::string Message,unsigned long long Size, HashStringList const &CalcHashes, pkgAcquire::MethodConfig *Cnf); virtual std::string DescURI() {return Desc.URI;}; - virtual std::string HashSum() {return ExpectedHash.toStr(); }; +#if APT_PKG_ABI >= 413 + virtual std::string Custom600Headers() const; +#else virtual std::string Custom600Headers(); +#endif /** \brief Create a new pkgAcqFile object. * @@ -1149,8 +1224,8 @@ class pkgAcqFile : public pkgAcquire::Item * * \param URI The URI to download. * - * \param Hash The hashsum of the file to download, if it is known; - * otherwise "". + * \param Hashes The hashsums of the file to download, if they are known; + * otherwise empty list. * * \param Size The size of the file to download, if it is known; * otherwise 0. @@ -1173,7 +1248,7 @@ class pkgAcqFile : public pkgAcquire::Item * is the absolute name to which the file should be downloaded. */ - pkgAcqFile(pkgAcquire *Owner, std::string URI, std::string Hash, unsigned long long Size, + pkgAcqFile(pkgAcquire *Owner, std::string URI, HashStringList const &Hashes, unsigned long long Size, std::string Desc, std::string ShortDesc, const std::string &DestDir="", const std::string &DestFilename="", bool IsIndexFile=false); |