Acquire Item - Item to acquire
When an item is instantiated it will add it self to the local list in
- the Owner Acquire class. Derived classes will then call QueueURI to
- register all the URI's they wish to fetch at the initial moment.
-
+ the Owner Acquire class. Derived classes will then call QueueURI to
+ register all the URI's they wish to fetch at the initial moment.
+
Three item classes are provided to provide functionality for
downloading of Index, Translation and Packages files.
-
+
A Archive class is provided for downloading .deb files. It does Hash
checking and source location as well as a retry algorithm.
-
+
##################################################################### */
/*}}}*/
#ifndef PKGLIB_ACQUIRE_ITEM_H
class IndexTarget;
class pkgAcqMetaBase;
-/** \brief Represents the process by which a pkgAcquire object should {{{
+class APT_HIDDEN IndexTarget /*{{{*/
+/** \brief Information about an index file. */
+{
+ public:
+ /** \brief A URI from which the index file can be downloaded. */
+ std::string const URI;
+
+ /** \brief A description of the index file. */
+ std::string const Description;
+
+ /** \brief A shorter description of the index file. */
+ std::string const ShortDesc;
+
+ /** \brief The key by which this index file should be
+ * looked up within the meta signature file.
+ */
+ std::string const MetaKey;
+
+ virtual bool IsOptional() const {
+ return false;
+ }
+
+ IndexTarget(std::string const &MetaKey, std::string const &ShortDesc,
+ std::string const &LongDesc, std::string const &URI) :
+ URI(URI), Description(LongDesc), ShortDesc(ShortDesc), MetaKey(MetaKey) {}
+};
+ /*}}}*/
+class APT_HIDDEN OptionalIndexTarget : public IndexTarget /*{{{*/
+/** \brief Information about an optional index file. */
+{
+ public:
+ virtual bool IsOptional() const {
+ return true;
+ }
+
+ OptionalIndexTarget(std::string const &MetaKey, std::string const &ShortDesc,
+ std::string const &LongDesc, std::string const &URI) :
+ IndexTarget(MetaKey, ShortDesc, LongDesc, URI) {}
+};
+ /*}}}*/
+class pkgAcquire::Item : public WeakPointable /*{{{*/
+/** \brief Represents the process by which a pkgAcquire object should
* retrieve a file or a collection of files.
*
* By convention, Item subclasses should insert themselves into the
*
* \see pkgAcquire
*/
-class pkgAcquire::Item : public WeakPointable
-{
- void *d;
-
- protected:
-
- /** \brief The acquire object with which this item is associated. */
- pkgAcquire *Owner;
-
- /** \brief Insert this item into its owner's queue.
- *
- * \param Item Metadata about this item (its URI and
- * description).
- */
- void QueueURI(ItemDesc &Item);
-
- /** \brief Remove this item from its owner's queue. */
- void Dequeue();
-
- /** \brief Rename a file without modifying its timestamp.
- *
- * Many item methods call this as their final action.
- *
- * \param From The file to be renamed.
- *
- * \param To The new name of \a From. If \a To exists it will be
- * overwritten.
- */
- bool Rename(std::string From,std::string To);
-
+{
public:
/** \brief The current status of this item. */
*/
StatAuthError,
- /** \brief The item was could not be downloaded because of
+ /** \brief The item was could not be downloaded because of
* a transient network error (e.g. network down)
*/
StatTransientNetworkError,
std::string ActiveSubprocess;
/** \brief A client-supplied unique identifier.
- *
+ *
* This field is initalized to 0; it is meant to be filled in by
* clients that wish to use it to uniquely identify items.
*
- * \todo it's unused in apt itself
+ * APT progress reporting will store an ID there as shown in "Get:42 …"
*/
unsigned long ID;
* download progress indicator's overall statistics.
*/
bool Local;
+
std::string UsedMirror;
/** \brief The number of fetch queues into which this item has been
*/
unsigned int QueueCounter;
- /** \brief TransactionManager */
- pkgAcqMetaBase *TransactionManager;
-
/** \brief The number of additional fetch items that are expected
* once this item is done.
*
* 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.
*
*
* \sa pkgAcqMethod
*/
- virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf);
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
/** \brief Invoked by the acquire worker when the object was
* fetched successfully.
*
* \param Message Data from the acquire method. Use LookupTag()
* to parse it.
- * \param Size The size 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, HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
/** \brief Invoked when the worker starts to fetch this object.
*
* \param Message RFC822-formatted data from the worker process.
* Use LookupTag() to parse it.
*
- * \param Size The size of the object being fetched.
+ * \param Hashes The expected hashes of the object being fetched.
*
* \sa pkgAcqMethod
*/
- virtual void Start(std::string Message,unsigned long long Size);
+ virtual void Start(std::string const &Message, unsigned long long const Size);
/** \brief Custom headers to be sent to the fetch process.
*
* line, so they should (if nonempty) have a leading newline and
* no trailing newline.
*/
- virtual std::string Custom600Headers() const {return std::string();};
+ virtual std::string Custom600Headers() const;
/** \brief A "descriptive" URI-like string.
*
* \return a URI that should be used to describe what is being fetched.
*/
- virtual std::string DescURI() = 0;
+ virtual std::string DescURI() const = 0;
/** \brief Short item description.
*
* \return a brief description of the object being fetched.
*/
- virtual std::string ShortDesc() {return DescURI();}
+ virtual std::string ShortDesc() const;
/** \brief Invoked by the worker when the download is completely done. */
- virtual void Finished() {};
-
- /** \brief HashSums
+ virtual void Finished();
+
+ /** \return HashSums the DestFile is supposed to have in this stage */
+ virtual HashStringList GetExpectedHashes() const = 0;
+ /** \return the 'best' hash for display proposes like --print-uris */
+ std::string HashSum() const;
+
+ /** \return if having no hashes is a hard failure or not
*
- * \return the HashSums of this object, if applicable; otherwise, an
- * empty list.
+ * Idealy this is always \b true for every subclass, but thanks to
+ * historical grow we don't have hashes for all files in all cases
+ * in all steps, so it is slightly more complicated than it should be.
*/
- 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() : ""; };
+ virtual bool HashesRequired() const { return true; }
/** \return the acquire process with which this item is associated. */
- pkgAcquire *GetOwner() const {return Owner;};
+ pkgAcquire *GetOwner() const;
/** \return \b true if this object is being fetched from a trusted source. */
- virtual bool IsTrusted() const {return false;};
-
+ virtual bool IsTrusted() const;
+
/** \brief Report mirror problem
- *
+ *
* This allows reporting mirror failures back to a centralized
* server. The apt-report-mirror-failure script is called for this
- *
+ *
* \param FailCode A short failure string that is send
*/
- void ReportMirrorFailure(std::string FailCode);
+ void ReportMirrorFailure(std::string const &FailCode);
/** \brief Set the name of the current active subprocess
*
* See also #ActiveSubprocess
*/
- void SetActiveSubprocess(const std::string &subprocess);
+ void SetActiveSubprocess(std::string const &subprocess);
/** \brief Initialize an item.
*
* manually invoke QueueURI() to do so).
*
* \param Owner The new owner of this item.
- * \param ExpectedHashes of the file represented by this item
*/
- Item(pkgAcquire *Owner,
- HashStringList const &ExpectedHashes=HashStringList(),
- pkgAcqMetaBase *TransactionManager=NULL);
+ Item(pkgAcquire * const Owner);
/** \brief Remove this item from its owner's queue by invoking
* pkgAcquire::Remove.
virtual ~Item();
protected:
+ /** \brief The acquire object with which this item is associated. */
+ pkgAcquire * const Owner;
+
+ /** \brief The item that is currently being downloaded. */
+ pkgAcquire::ItemDesc Desc;
enum RenameOnErrorState {
HashSumMismatch,
InvalidFormat,
SignatureError,
NotClearsigned,
+ MaximumSizeExceeded,
+ PDiffError,
};
/** \brief Rename failed file and set error
*/
bool RenameOnError(RenameOnErrorState const state);
- /** \brief The HashSums of the item is supposed to have than done */
- HashStringList ExpectedHashes;
+ /** \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
+ */
+ virtual bool QueueURI(ItemDesc &Item);
- /** \brief The item that is currently being downloaded. */
- pkgAcquire::ItemDesc Desc;
+ /** \brief Remove this item from its owner's queue. */
+ void Dequeue();
+
+ /** \brief Rename a file without modifying its timestamp.
+ *
+ * Many item methods call this as their final action.
+ *
+ * \param From The file to be renamed.
+ *
+ * \param To The new name of \a From. If \a To exists it will be
+ * overwritten. If \a From and \a To are equal nothing happens.
+ */
+ bool Rename(std::string const &From, std::string const &To);
+
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const;
+
+ private:
+ void *d;
+
+ friend class pkgAcqMetaBase;
};
/*}}}*/
-/** \brief Information about an index patch (aka diff). */ /*{{{*/
-struct DiffInfo {
- /** The filename of the diff. */
- std::string file;
+class APT_HIDDEN pkgAcqTransactionItem: public pkgAcquire::Item /*{{{*/
+/** \brief baseclass for the indexes files to manage them all together */
+{
+ protected:
+ IndexTarget const * const Target;
+ HashStringList GetExpectedHashesFor(std::string const MetaKey) const;
- /** The hashes of the diff */
- HashStringList result_hashes;
+ bool QueueURI(pkgAcquire::ItemDesc &Item);
- /** The hashes of the file after the diff is applied */
- HashStringList patch_hashes;
+ public:
+ /** \brief storge name until a transaction is finished */
+ std::string PartialFile;
+
+ /** \brief TransactionManager */
+ pkgAcqMetaBase * const TransactionManager;
+
+ enum TransactionStates {
+ TransactionCommit,
+ TransactionAbort,
+ };
+ virtual bool TransactionState(TransactionStates const state);
+
+ virtual std::string DescURI() const { return Target->URI; }
+ virtual HashStringList GetExpectedHashes() const;
+ virtual std::string GetMetaKey() const;
+ virtual bool HashesRequired() const;
- /** 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;
+ pkgAcqTransactionItem(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager, IndexTarget const * const Target);
+ virtual ~pkgAcqTransactionItem();
+
+ friend class pkgAcqMetaBase;
};
/*}}}*/
- /*}}}*/
-
-class pkgAcqMetaBase : public pkgAcquire::Item
+class APT_HIDDEN pkgAcqMetaBase : public pkgAcqTransactionItem /*{{{*/
+/** \brief the manager of a transaction */
{
void *d;
protected:
- std::vector<Item*> Transaction;
+ std::vector<pkgAcqTransactionItem*> Transaction;
+ IndexTarget const DataTarget;
+ public:
/** \brief A package-system-specific parser for the meta-index file. */
indexRecords *MetaIndexParser;
+ indexRecords *LastMetaIndexParser;
+ protected:
/** \brief The index files which should be looked up in the meta-index
* and then downloaded.
*/
- const std::vector<IndexTarget*>* IndexTargets;
+ const std::vector<IndexTarget*>* const IndexTargets;
/** \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 Starts downloading the individual index files.
*
* \param verify If \b true, only indices whose expected hashsum
* #StatAuthError if there is a mismatch). If verify is \b false,
* no hashsum checking will be performed.
*/
- void QueueIndexes(bool verify);
+ void QueueIndexes(bool const verify);
/** \brief Called when a file is finished being retrieved.
*
* \param Message The message block received from the fetch
* subprocess.
*/
- bool CheckDownloadDone(const std::string &Message,
- const std::string &RealURI);
+ bool CheckDownloadDone(pkgAcqTransactionItem * const I, const std::string &Message, HashStringList const &Hashes) const;
/** \brief Queue the downloaded Signature for verification */
- void QueueForSignatureVerify(const std::string &MetaIndexFile,
- const std::string &MetaIndexFileSignature);
+ void QueueForSignatureVerify(pkgAcqTransactionItem * const I, std::string const &File, std::string const &Signature);
- /** \brief get the custom600 header for all pkgAcqMeta */
- std::string GetCustom600Headers(const std::string &RealURI) const;
+ virtual std::string Custom600Headers() const;
/** \brief Called when authentication succeeded.
*
* \param Message The message block received from the fetch
* subprocess.
*/
- bool CheckAuthDone(std::string Message, const std::string &RealURI);
+ bool CheckAuthDone(std::string const &Message);
/** Check if the current item should fail at this point */
- bool CheckStopAuthentication(const std::string &RealURI,
- const std::string &Message);
+ 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, const std::string &RealURI);
-
+ bool VerifyVendor(std::string const &Message);
+
+ virtual bool TransactionState(TransactionStates const state);
+
public:
+ // This refers more to the Transaction-Manager than the actual file
+ bool IMSHit;
+
+ virtual bool QueueURI(pkgAcquire::ItemDesc &Item);
+ virtual HashStringList GetExpectedHashes() const;
+ virtual bool HashesRequired() const;
+
// transaction code
- void Add(Item *I);
+ void Add(pkgAcqTransactionItem * const I);
void AbortTransaction();
- bool TransactionHasError() APT_PURE;
+ bool TransactionHasError() const;
void CommitTransaction();
- /** \brief Stage (queue) a copy action when the transaction is commited
+ /** \brief Stage (queue) a copy action when the transaction is committed
*/
- void TransactionStageCopy(Item *I,
- const std::string &From,
+ void TransactionStageCopy(pkgAcqTransactionItem * const I,
+ const std::string &From,
const std::string &To);
- /** \brief Stage (queue) a removal action when the transaction is commited
- */
- void TransactionStageRemoval(Item *I, const std::string &FinalFile);
-
- pkgAcqMetaBase(pkgAcquire *Owner,
- const std::vector<IndexTarget*>* IndexTargets,
- indexRecords* MetaIndexParser,
- HashStringList const &ExpectedHashes=HashStringList(),
- pkgAcqMetaBase *TransactionManager=NULL)
- : Item(Owner, ExpectedHashes, TransactionManager),
- MetaIndexParser(MetaIndexParser), IndexTargets(IndexTargets),
- AuthPass(false), IMSHit(false) {};
-};
-
-/** \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 pkgAcqMetaBase
-{
- void *d;
-
- protected:
-
- /** \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.
+ /** \brief Stage (queue) a removal action when the transaction is committed
*/
- std::string RealURI;
-
- /** \brief The file we need to verify */
- std::string MetaIndexFile;
-
- /** \brief The file we use to verify the MetaIndexFile with */
- std::string MetaIndexFileSignature;
+ void TransactionStageRemoval(pkgAcqTransactionItem * const I, const std::string &FinalFile);
- /** \brief Long URI description used in the acquire system */
- std::string URIDesc;
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const;
- /** \brief Short URI description used in the acquire system */
- 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 std::string Custom600Headers() const;
- virtual std::string DescURI() {return RealURI; };
-
- /** \brief Create a new pkgAcqMetaSig. */
- pkgAcqMetaSig(pkgAcquire *Owner,
- pkgAcqMetaBase *TransactionManager,
- std::string URI,std::string URIDesc, std::string ShortDesc,
- std::string MetaIndexFile,
- const std::vector<IndexTarget*>* IndexTargets,
- indexRecords* MetaIndexParser);
- virtual ~pkgAcqMetaSig();
+ pkgAcqMetaBase(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ std::vector<IndexTarget*> const * const IndexTargets,
+ IndexTarget const &DataTarget,
+ indexRecords* const MetaIndexParser);
};
/*}}}*/
-
/** \brief An item that is responsible for downloading the meta-index {{{
* file (i.e., Release) itself and verifying its signature.
*
* otherwise, the expected hashsums will be "" (causing the
* authentication of the index files to be bypassed).
*/
-class pkgAcqMetaIndex : public pkgAcqMetaBase
+class APT_HIDDEN pkgAcqMetaIndex : public pkgAcqMetaBase
{
void *d;
protected:
- /** \brief The URI that is actually being downloaded; never
- * modified by pkgAcqMetaIndex.
- */
- std::string RealURI;
-
- 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;
+ IndexTarget const DetachedSigTarget;
/** \brief delayed constructor */
- void Init(std::string URIDesc, std::string ShortDesc);
-
+ void Init(std::string const &URIDesc, std::string const &ShortDesc);
+
public:
+ virtual std::string DescURI() const;
// 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 std::string Custom600Headers() const;
- virtual std::string DescURI() {return RealURI; };
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const 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);
+ pkgAcqMetaIndex(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ IndexTarget const &DataTarget, IndexTarget const &DetachedSigTarget,
+ const std::vector<IndexTarget*>* const IndexTargets, indexRecords * const MetaIndexParser);
+
+ friend class pkgAcqMetaSig;
};
/*}}}*/
-/** \brief An item repsonsible for downloading clearsigned metaindexes {{{*/
-class pkgAcqMetaClearSig : public pkgAcqMetaIndex
+/** \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 pkgAcqTransactionItem
{
void *d;
- /** \brief The URI of the meta-index file for the detached signature */
- std::string MetaIndexURI;
+ pkgAcqMetaIndex * const MetaIndex;
- /** \brief A "URI-style" description of the meta-index file */
- std::string MetaIndexURIDesc;
+ /** \brief The file we use to verify the MetaIndexFile with (not always set!) */
+ std::string MetaIndexFileSignature;
- /** \brief A brief description of the meta-index file */
- std::string MetaIndexShortDesc;
+ protected:
- /** \brief The URI of the detached meta-signature file if the clearsigned one failed. */
- std::string MetaSigURI;
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const;
- /** \brief A "URI-style" description of the meta-signature file */
- std::string MetaSigURIDesc;
+ public:
+ virtual bool HashesRequired() const { return false; }
- /** \brief A brief description of the meta-signature file */
- std::string MetaSigShortDesc;
+ // Specialized action members
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
+
+ /** \brief Create a new pkgAcqMetaSig. */
+ pkgAcqMetaSig(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager, IndexTarget const * const Target,
+ pkgAcqMetaIndex * const MetaIndex);
+ virtual ~pkgAcqMetaSig();
+};
+ /*}}}*/
+/** \brief An item repsonsible for downloading clearsigned metaindexes {{{*/
+class APT_HIDDEN pkgAcqMetaClearSig : public pkgAcqMetaIndex
+{
+ void *d;
+
+ IndexTarget const ClearsignedTarget;
+ IndexTarget const DetachedDataTarget;
+ IndexTarget const DetachedSigTarget;
public:
- virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf);
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
virtual std::string Custom600Headers() const;
- virtual void Done(std::string Message,unsigned long long Size,
- HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const 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);
+ pkgAcqMetaClearSig(pkgAcquire * const Owner,
+ IndexTarget const &ClearsignedTarget,
+ IndexTarget const &DetachedDataTarget,
+ IndexTarget const &DetachedSigTarget,
+ std::vector<IndexTarget*> const * const IndexTargets,
+ indexRecords * const MetaIndexParser);
virtual ~pkgAcqMetaClearSig();
};
/*}}}*/
-
-
-/** \brief Common base class for all classes that deal with fetching {{{
- indexes
- */
-class pkgAcqBaseIndex : public pkgAcquire::Item
+/** \brief Common base class for all classes that deal with fetching indexes {{{*/
+class APT_HIDDEN pkgAcqBaseIndex : public pkgAcqTransactionItem
{
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);
+ public:
+ /** \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)
- : Item(Owner, ExpectedHashes, TransactionManager), Target(Target),
- MetaIndexParser(MetaIndexParser) {};
+ pkgAcqBaseIndex(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ IndexTarget const * const Target);
};
/*}}}*/
/** \brief An item that is responsible for fetching an index file of {{{
*
* \sa pkgAcqIndexDiffs, pkgAcqIndex
*/
-class pkgAcqDiffIndex : public pkgAcqBaseIndex
+class APT_HIDDEN pkgAcqDiffIndex : public pkgAcqBaseIndex
{
void *d;
*/
std::string Description;
- /** \brief If the copy step of the packages file is done
- */
- bool PackagesFileReadyInPartial;
+ /** \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, HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cnf);
- virtual std::string DescURI() {return RealURI + "Index";};
+ virtual void Failed(std::string const &Message, pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
+ virtual std::string DescURI() const {return Target->URI + "Index";};
virtual std::string Custom600Headers() const;
+ virtual std::string GetMetaKey() const;
/** \brief Parse the Index file for a set of Packages diffs.
*
* \return \b true if the Index file was successfully parsed, \b
* false otherwise.
*/
- bool ParseDiffIndex(std::string IndexDiffFile);
-
+ bool ParseDiffIndex(std::string const &IndexDiffFile);
/** \brief Create a new pkgAcqDiffIndex.
*
* \param URIDesc A long description of the list file to download.
*
* \param ShortDesc A short description of the list file to download.
- *
- * \param ExpectedHashes The list file's hashsums which are expected.
*/
- pkgAcqDiffIndex(pkgAcquire *Owner,
- pkgAcqMetaBase *TransactionManager,
- struct IndexTarget const * const Target,
- HashStringList const &ExpectedHashes,
- indexRecords *MetaIndexParser);
+ pkgAcqDiffIndex(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ IndexTarget const * const Target);
+ private:
+ APT_HIDDEN void QueueOnIMSHit() const;
+};
+ /*}}}*/
+struct APT_HIDDEN DiffInfo { /*{{{*/
+ /** The filename of the diff. */
+ std::string file;
+
+ /** The hashes of the file after the diff is applied */
+ HashStringList result_hashes;
+
+ /** The hashes of the diff */
+ HashStringList patch_hashes;
+
+ /** The hashes of the compressed diff */
+ HashStringList download_hashes;
};
/*}}}*/
/** \brief An item that is responsible for fetching client-merge patches {{{
*
* \sa pkgAcqDiffIndex, pkgAcqIndex
*/
-class pkgAcqIndexMergeDiffs : public pkgAcqBaseIndex
+class APT_HIDDEN pkgAcqIndexMergeDiffs : public pkgAcqBaseIndex
{
void *d;
* This method will fall back to downloading the whole index file
* outright; its arguments are ignored.
*/
- 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 std::string DescURI() {return RealURI + "Index";};
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
+ virtual std::string Custom600Headers() const;
+ virtual std::string DescURI() const {return Target->URI + "Index";};
+ virtual HashStringList GetExpectedHashes() const;
+ virtual bool HashesRequired() const;
/** \brief Create an index merge-diff item.
*
*
* \param ShortDesc A brief description of this item.
*
- * \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.
- *
* \param patch contains infos about the patch this item is supposed
* to download which were read from the index
*
* \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,
- pkgAcqMetaBase *TransactionManager,
- struct IndexTarget const * const Target,
- HashStringList const &ExpectedHash,
- indexRecords *MetaIndexParser,
- DiffInfo const &patch,
+ pkgAcqIndexMergeDiffs(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ IndexTarget const * const Target,
+ DiffInfo const &patch,
std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches);
};
/*}}}*/
*
* \sa pkgAcqDiffIndex, pkgAcqIndex
*/
-class pkgAcqIndexDiffs : public pkgAcqBaseIndex
+class APT_HIDDEN pkgAcqIndexDiffs : public pkgAcqBaseIndex
{
void *d;
* \param allDone If \b true, the file was entirely reconstructed,
* and its md5sum is verified.
*/
- APT_HIDDEN void Finish(bool allDone=false);
+ APT_HIDDEN void Finish(bool const allDone=false);
protected:
/** \brief The diff is currently being fetched. */
StateFetchDiff,
-
- /** \brief The diff is currently being uncompressed. */
- StateUnzipDiff, // FIXME: No longer used
/** \brief The diff is currently being applied. */
StateApplyDiff
} State;
public:
-
+
/** \brief Called when the patch file failed to be downloaded.
*
* This method will fall back to downloading the whole index file
* outright; its arguments are ignored.
*/
- virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf);
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
- virtual void Done(std::string Message,unsigned long long Size, HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cnf);
- virtual std::string DescURI() {return RealURI + "IndexDiffs";};
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
+ virtual std::string Custom600Headers() const;
+ virtual std::string DescURI() const {return Target->URI + "IndexDiffs";};
+ virtual HashStringList GetExpectedHashes() const;
+ virtual bool HashesRequired() const;
/** \brief Create an index diff item.
*
*
* \param ShortDesc A brief description of this item.
*
- * \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 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,
- pkgAcqMetaBase *TransactionManager,
- struct IndexTarget const * const Target,
- HashStringList const &ExpectedHash,
- indexRecords *MetaIndexParser,
- std::vector<DiffInfo> diffs=std::vector<DiffInfo>());
+ pkgAcqIndexDiffs(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ IndexTarget const * const Target,
+ std::vector<DiffInfo> const &diffs=std::vector<DiffInfo>());
};
/*}}}*/
/** \brief An acquire item that is responsible for fetching an index {{{
*
* \todo Why does pkgAcqIndex have protected members?
*/
-class pkgAcqIndex : public pkgAcqBaseIndex
+class APT_HIDDEN pkgAcqIndex : public pkgAcqBaseIndex
{
void *d;
AllStages Stage;
/** \brief Handle what needs to be done when the download is done */
- void StageDownloadDone(std::string Message,
+ void StageDownloadDone(std::string const &Message,
HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cfg);
+ pkgAcquire::MethodConfig const * const Cfg);
/** \brief Handle what needs to be done when the decompression/copy is
* done
*/
- void StageDecompressDone(std::string Message,
+ void StageDecompressDone(std::string const &Message,
HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cfg);
+ pkgAcquire::MethodConfig const * const Cfg);
/** \brief If \b set, this partially downloaded file will be
* removed when the download completes.
std::string CurrentCompressionExtension;
/** \brief Do the changes needed to fetch via AptByHash (if needed) */
- void InitByHashIfNeeded(const std::string MetaKey);
+ void InitByHashIfNeeded();
/** \brief Auto select the right compression to use */
void AutoSelectCompression();
- /** \brief Get the full pathname of the final file for the current URI
- */
- std::string GetFinalFilename() const;
-
/** \brief Schedule file for verification after a IMS hit */
void ReverifyAfterIMS();
/** \brief Validate the downloaded index file */
- bool ValidateFile(const std::string &FileName);
+ bool ValidateFile(std::string const &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,
- HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cnf);
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
virtual std::string Custom600Headers() const;
- virtual std::string DescURI() {return Desc.URI;};
+ virtual std::string DescURI() const {return Desc.URI;};
+ virtual std::string GetMetaKey() const;
+
+ pkgAcqIndex(pkgAcquire * const Owner, pkgAcqMetaBase * const TransactionManager,
+ IndexTarget const * const Target);
- /** \brief Create a pkgAcqIndex.
- *
- * \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.
- *
- * \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
- * Compression types can be set with config Acquire::CompressionTypes,
- * default is ".lzma" or ".bz2" (if the needed binaries are present)
- * fallback is ".gz" or none.
- */
- pkgAcqIndex(pkgAcquire *Owner,std::string URI,std::string URIDesc,
- 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
-{
- void *d;
-
- public:
- /** \brief A URI from which the index file can be downloaded. */
- std::string URI;
-
- /** \brief A description of the index file. */
- std::string Description;
-
- /** \brief A shorter description of the index file. */
- std::string ShortDesc;
-
- /** \brief The key by which this index file should be
- * looked up within the meta signature file.
- */
- std::string MetaKey;
-
- virtual bool IsOptional() const {
- return false;
- }
-};
- /*}}}*/
-/** \brief Information about an optional index file. */ /*{{{*/
-class OptionalIndexTarget : public IndexTarget
-{
- void *d;
-
- virtual bool IsOptional() const {
- return true;
- }
-};
- /*}}}*/
/** \brief An item that is responsible for fetching a package file. {{{
*
* If the package file already exists in the cache, nothing will be
{
void *d;
+ bool LocalSource;
+ HashStringList ExpectedHashes;
+
protected:
/** \brief The package version being fetched. */
pkgCache::VerIterator Version;
/** \brief \b true if this version file is being downloaded from a
* trusted source.
*/
- bool Trusted;
+ bool Trusted;
/** \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, HashStringList const &Hashes,
- pkgAcquire::MethodConfig *Cnf);
- virtual std::string DescURI() {return Desc.URI;};
- virtual std::string ShortDesc() {return Desc.ShortDesc;};
+
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf);
+ virtual std::string DescURI() const;
+ virtual std::string ShortDesc() const;
virtual void Finished();
virtual bool IsTrusted() const;
-
+ virtual HashStringList GetExpectedHashes() const;
+ virtual bool HashesRequired() const;
+
/** \brief Create a new pkgAcqArchive.
*
* \param Owner The pkgAcquire object with which this item is
* basename in the constructor, and filled in with a fully
* qualified filename once the download finishes.
*/
- pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
- pkgRecords *Recs,pkgCache::VerIterator const &Version,
+ pkgAcqArchive(pkgAcquire * const Owner,pkgSourceList * const Sources,
+ pkgRecords * const Recs,pkgCache::VerIterator const &Version,
std::string &StoreFilename);
};
/*}}}*/
* Acquire::Retries.
*/
unsigned int Retries;
-
+
/** \brief Should this file be considered a index file */
bool IsIndexFile;
+ HashStringList const ExpectedHashes;
public:
-
+ virtual HashStringList GetExpectedHashes() const;
+ virtual bool HashesRequired() const;
+
// Specialized action members
- virtual void Failed(std::string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(std::string Message,unsigned long long Size, HashStringList const &CalcHashes,
- pkgAcquire::MethodConfig *Cnf);
- virtual std::string DescURI() {return Desc.URI;};
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+ virtual void Done(std::string const &Message, HashStringList const &CalcHashes,
+ pkgAcquire::MethodConfig const * const Cnf);
+ virtual std::string DescURI() const {return Desc.URI;};
virtual std::string Custom600Headers() const;
/** \brief Create a new pkgAcqFile object.
* is the absolute name to which the file should be downloaded.
*/
- 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);
+ pkgAcqFile(pkgAcquire * const Owner, std::string const &URI, HashStringList const &Hashes, unsigned long long const Size,
+ std::string const &Desc, std::string const &ShortDesc,
+ std::string const &DestDir="", std::string const &DestFilename="",
+ bool const IsIndexFile=false);
};
/*}}}*/
/** @} */
projects / apt.git / blobdiff