// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: acquire-item.h,v 1.26.2.3 2004/01/02 18:51:00 mdz Exp $
/* ######################################################################
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.
-
- Two item classes are provided to provide functionality for downloading
- of Index files and downloading of Packages.
-
- A Archive class is provided for downloading .deb files. It does Md5
+ 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
#include <apt-pkg/acquire.h>
#include <apt-pkg/indexfile.h>
-#include <apt-pkg/vendor.h>
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/weakptr.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+
+#include <string>
+#include <vector>
+#include <map>
+
+#ifndef APT_8_CLEANER_HEADERS
#include <apt-pkg/sourcelist.h>
#include <apt-pkg/pkgrecords.h>
-#include <apt-pkg/indexrecords.h>
+#endif
-#ifdef __GNUG__
-#pragma interface "apt-pkg/acquire-item.h"
-#endif
+/** \addtogroup acquire
+ * @{
+ *
+ * \file acquire-item.h
+ */
-// Item to acquire
-class pkgAcquire::Item
-{
- protected:
-
- // Some private helper methods for registering URIs
- pkgAcquire *Owner;
- inline void QueueURI(ItemDesc &Item)
- {Owner->Enqueue(Item);};
- inline void Dequeue() {Owner->Dequeue(this);};
-
- // Safe rename function with timestamp preservation
- void Rename(string From,string To);
-
+class pkgRecords;
+class pkgSourceList;
+class pkgAcqMetaClearSig;
+class pkgAcqIndexMergeDiffs;
+class metaIndex;
+
+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
+ * acquire queue when they are created by calling QueueURI(), and
+ * remove themselves by calling Dequeue() when either Done() or
+ * Failed() is invoked. Item objects are also responsible for
+ * notifying the download progress indicator (accessible via
+ * #Owner->Log) of their status.
+ *
+ * \see pkgAcquire
+ */
+{
public:
- // State of the item
- enum {StatIdle, StatFetching, StatDone, StatError, StatAuthError} Status;
- string ErrorText;
- unsigned long FileSize;
- unsigned long PartialSize;
- const char *Mode;
+ /** \brief The current status of this item. */
+ enum ItemState
+ {
+ /** \brief The item is waiting to be downloaded. */
+ StatIdle,
+
+ /** \brief The item is currently being downloaded. */
+ StatFetching,
+
+ /** \brief The item has been successfully downloaded. */
+ StatDone,
+
+ /** \brief An error was encountered while downloading this
+ * item.
+ */
+ StatError,
+
+ /** \brief The item was downloaded but its authenticity could
+ * not be verified.
+ */
+ StatAuthError,
+
+ /** \brief The item was could not be downloaded because of
+ * a transient network error (e.g. network down)
+ */
+ StatTransientNetworkError,
+ } Status;
+
+ /** \brief Contains a textual description of the error encountered
+ * if #ItemState is #StatError or #StatAuthError.
+ */
+ std::string ErrorText;
+
+ /** \brief The size of the object to fetch. */
+ unsigned long long FileSize;
+
+ /** \brief How much of the object was already fetched. */
+ unsigned long long PartialSize;
+
+ /** \brief If not \b NULL, contains the name of a subprocess that
+ * is operating on this object (for instance, "gzip" or "gpgv").
+ */
+ APT_DEPRECATED_MSG("Use the std::string member ActiveSubprocess instead") 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.
+ *
+ * This field is initalized to 0; it is meant to be filled in by
+ * clients that wish to use it to uniquely identify items.
+ *
+ * APT progress reporting will store an ID there as shown in "Get:42 …"
+ */
unsigned long ID;
+
+ /** \brief If \b true, the entire object has been successfully fetched.
+ *
+ * Subclasses should set this to \b true when appropriate.
+ */
bool Complete;
+
+ /** \brief If \b true, the URI of this object is "local".
+ *
+ * The only effect of this field is to exclude the object from the
+ * download progress indicator's overall statistics.
+ */
bool Local;
- // Number of queues we are inserted into
+ std::string UsedMirror;
+
+ /** \brief The number of fetch queues into which this item has been
+ * inserted.
+ *
+ * There is one queue for each source from which an item could be
+ * downloaded.
+ *
+ * \sa pkgAcquire
+ */
unsigned int QueueCounter;
-
- // File to write the fetch into
- string DestFile;
-
- // Action members invoked by the worker
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual void Start(string Message,unsigned long Size);
- virtual string Custom600Headers() {return string();};
- virtual string DescURI() = 0;
- virtual string ShortDesc() {return DescURI();}
- virtual void Finished() {};
-
- // Inquire functions
- virtual string MD5Sum() {return string();};
- pkgAcquire *GetOwner() {return Owner;};
- virtual bool IsTrusted() {return false;};
-
- Item(pkgAcquire *Owner);
+
+ /** \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 Invoked by the acquire worker when the object couldn't
+ * be fetched.
+ *
+ * This is a branch of the continuation of the fetch process.
+ *
+ * \param Message An RFC822-formatted message from the acquire
+ * method describing what went wrong. Use LookupTag() to parse
+ * it.
+ *
+ * \param Cnf The method via which the worker tried to fetch this object.
+ *
+ * \sa pkgAcqMethod
+ */
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf);
+
+ /** \brief Invoked by the acquire worker to check if the successfully
+ * fetched object is also the objected we wanted to have.
+ *
+ * Note that the object might \e not have been written to
+ * DestFile; check for the presence of an Alt-Filename entry in
+ * Message to find the file to which it was really written.
+ *
+ * This is called before Done is called and can prevent it by returning
+ * \b false which will result in Failed being called instead.
+ *
+ * You should prefer to use this method over calling Failed() from Done()
+ * as this has e.g. the wrong progress reporting.
+ *
+ * \param Message Data from the acquire method. Use LookupTag()
+ * to parse it.
+ * \param Cnf The method via which the object was fetched.
+ *
+ * \sa pkgAcqMethod
+ */
+ virtual bool VerifyDone(std::string const &Message,
+ pkgAcquire::MethodConfig const * const Cnf);
+
+ /** \brief Invoked by the acquire worker when the object was
+ * fetched successfully.
+ *
+ * Note that the object might \e not have been written to
+ * DestFile; check for the presence of an Alt-Filename entry in
+ * Message to find the file to which it was really written.
+ *
+ * Done is often used to switch from one stage of the processing
+ * to the next (e.g. fetching, unpacking, copying). It is one
+ * branch of the continuation of the fetch process.
+ *
+ * \param Message Data from the acquire method. Use LookupTag()
+ * to parse it.
+ * \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 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 Hashes The expected hashes of the object being fetched.
+ *
+ * \sa pkgAcqMethod
+ */
+ virtual void Start(std::string const &Message, unsigned long long const Size);
+
+ /** \brief Custom headers to be sent to the fetch process.
+ *
+ * \return a string containing RFC822-style headers that are to be
+ * inserted into the 600 URI Acquire message sent to the fetch
+ * subprocess. The headers are inserted after a newline-less
+ * line, so they should (if nonempty) have a leading newline and
+ * no trailing newline.
+ */
+ 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() const = 0;
+ /** \brief Short item description.
+ *
+ * \return a brief description of the object being fetched.
+ */
+ virtual std::string ShortDesc() const;
+
+ /** \brief Invoked by the worker when the download is completely done. */
+ 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
+ *
+ * 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.
+ */
+ virtual bool HashesRequired() const { return true; }
+
+ /** \return the acquire process with which this item is associated. */
+ pkgAcquire *GetOwner() const;
+ pkgAcquire::ItemDesc &GetItemDesc();
+
+ /** \return \b true if this object is being fetched from a trusted source. */
+ 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
+ */
+ APT_DEPRECATED_MSG("Item::Failed does this for you") void ReportMirrorFailure(std::string const &FailCode);
+
+ /** \brief Set the name of the current active subprocess
+ *
+ * See also #ActiveSubprocess
+ */
+ void SetActiveSubprocess(std::string const &subprocess);
+
+ /** \brief Initialize an item.
+ *
+ * Adds the item to the list of items known to the acquire
+ * process, but does not place it into any fetch queues (you must
+ * manually invoke QueueURI() to do so).
+ *
+ * \param Owner The new owner of this item.
+ */
+ explicit Item(pkgAcquire * const Owner);
+
+ /** \brief Remove this item from its owner's queue by invoking
+ * pkgAcquire::Remove.
+ */
virtual ~Item();
-};
-// item for index diffs
+ bool APT_HIDDEN IsRedirectionLoop(std::string const &NewURI);
-struct DiffInfo {
- string file;
- string sha1;
- unsigned long size;
+ 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,
+ SizeMismatch,
+ InvalidFormat,
+ SignatureError,
+ NotClearsigned,
+ MaximumSizeExceeded,
+ PDiffError,
+ };
+
+ /** \brief Rename failed file and set error
+ *
+ * \param state respresenting the error we encountered
+ */
+ bool RenameOnError(RenameOnErrorState const state);
+
+ /** \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 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:
+ class Private;
+ Private * const d;
+
+ friend class pkgAcqMetaBase;
+ friend class pkgAcqMetaClearSig;
};
+ /*}}}*/
+class APT_HIDDEN pkgAcqTransactionItem: public pkgAcquire::Item /*{{{*/
+/** \brief baseclass for the indexes files to manage them all together */
+{
+ void * const d;
+ protected:
+ HashStringList GetExpectedHashesFor(std::string const &MetaKey) const;
+
+ bool QueueURI(pkgAcquire::ItemDesc &Item) APT_OVERRIDE;
+
+ public:
+ IndexTarget const Target;
+
+ /** \brief storge name until a transaction is finished */
+ std::string PartialFile;
+
+ /** \brief TransactionManager */
+ pkgAcqMetaClearSig * const TransactionManager;
+
+ enum TransactionStates {
+ TransactionStarted,
+ TransactionCommit,
+ TransactionAbort,
+ };
+ virtual bool TransactionState(TransactionStates const state);
-class pkgAcqDiffIndex : public pkgAcquire::Item
+ virtual std::string DescURI() const APT_OVERRIDE { return Target.URI; }
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+ virtual std::string GetMetaKey() const;
+ virtual bool HashesRequired() const APT_OVERRIDE;
+
+
+ pkgAcqTransactionItem(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager, IndexTarget const &Target) APT_NONNULL(2, 3);
+ virtual ~pkgAcqTransactionItem();
+
+ friend class pkgAcqMetaBase;
+ friend class pkgAcqMetaClearSig;
+};
+ /*}}}*/
+class APT_HIDDEN pkgAcqMetaBase : public pkgAcqTransactionItem /*{{{*/
+/** \brief the manager of a transaction */
{
+ void * const d;
protected:
- bool Debug;
- pkgAcquire::ItemDesc Desc;
- string RealURI;
- string ExpectedMD5;
- string CurrentPackagesFile;
- string Description;
+ std::vector<pkgAcqTransactionItem*> Transaction;
+
+ /** \brief If \b true, the index's signature is currently being verified.
+ */
+ bool AuthPass;
+
+ /** \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.
+ */
+ bool CheckDownloadDone(pkgAcqTransactionItem * const I, const std::string &Message, HashStringList const &Hashes) const;
+
+ /** \brief Queue the downloaded Signature for verification */
+ void QueueForSignatureVerify(pkgAcqTransactionItem * const I, std::string const &File, std::string const &Signature);
+
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+
+ /** \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.
+ */
+ bool CheckAuthDone(std::string const &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 const &Message);
+
+ virtual bool TransactionState(TransactionStates const state) APT_OVERRIDE;
public:
- // Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string DescURI() {return RealURI + "Index";};
- virtual string Custom600Headers();
-
- // helpers
- bool ParseDiffIndex(string IndexDiffFile);
-
- pkgAcqDiffIndex(pkgAcquire *Owner,string URI,string URIDesc,
- string ShortDesct, string ExpectedMD5);
-};
+ // This refers more to the Transaction-Manager than the actual file
+ bool IMSHit;
+ TransactionStates State;
+ std::string BaseURI;
+
+ virtual bool QueueURI(pkgAcquire::ItemDesc &Item) APT_OVERRIDE;
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+ virtual bool HashesRequired() const APT_OVERRIDE;
+
+ // transaction code
+ void Add(pkgAcqTransactionItem * const I);
+ void AbortTransaction();
+ bool TransactionHasError() const;
+ void CommitTransaction();
-class pkgAcqIndexDiffs : public pkgAcquire::Item
+ /** \brief Stage (queue) a copy action when the transaction is committed
+ */
+ void TransactionStageCopy(pkgAcqTransactionItem * const I,
+ const std::string &From,
+ const std::string &To);
+ /** \brief Stage (queue) a removal action when the transaction is committed
+ */
+ void TransactionStageRemoval(pkgAcqTransactionItem * const I, const std::string &FinalFile);
+
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const APT_OVERRIDE;
+
+ pkgAcqMetaBase(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &DataTarget) APT_NONNULL(2, 3);
+ virtual ~pkgAcqMetaBase();
+};
+ /*}}}*/
+/** \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 * const d;
protected:
- bool Debug;
- pkgAcquire::ItemDesc Desc;
- string RealURI;
- string ExpectedMD5;
+ IndexTarget const DetachedSigTarget;
- // this is the SHA-1 sum we expect after the patching
- string Description;
- vector<DiffInfo> available_patches;
- enum {StateFetchIndex,StateFetchDiff,StateUnzipDiff,StateApplyDiff} State;
+ /** \brief delayed constructor */
+ void Init(std::string const &URIDesc, std::string const &ShortDesc);
public:
-
+ virtual std::string DescURI() const APT_OVERRIDE;
+
// Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string DescURI() {return RealURI + "Index";};
-
- // various helpers
- bool QueueNextDiff();
- bool ApplyDiff(string PatchFile);
- void Finish(bool allDone=false);
-
- pkgAcqIndexDiffs(pkgAcquire *Owner,string URI,string URIDesc,
- string ShortDesct, string ExpectedMD5,
- vector<DiffInfo> diffs=vector<DiffInfo>());
-};
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+
+ /** \brief Create a new pkgAcqMetaIndex. */
+ pkgAcqMetaIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &DataTarget, IndexTarget const &DetachedSigTarget) APT_NONNULL(2, 3);
+ virtual ~pkgAcqMetaIndex();
-// Item class for index files
-class pkgAcqIndex : public pkgAcquire::Item
+ 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 pkgAcqTransactionItem
{
+ void * const d;
+
+ pkgAcqMetaIndex * const MetaIndex;
+
+ /** \brief The file we use to verify the MetaIndexFile with (not always set!) */
+ std::string MetaIndexFileSignature;
+
protected:
-
- bool Decompression;
- bool Erase;
- pkgAcquire::ItemDesc Desc;
- string RealURI;
- string ExpectedMD5;
- string CompressionExtension;
+
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const APT_OVERRIDE;
public:
-
+ virtual bool HashesRequired() const APT_OVERRIDE { return false; }
+
// Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string Custom600Headers();
- virtual string DescURI() {return RealURI + CompressionExtension;};
-
- pkgAcqIndex(pkgAcquire *Owner,string URI,string URIDesc,
- string ShortDesct, string ExpectedMD5, string compressExt="");
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+
+ /** \brief Create a new pkgAcqMetaSig. */
+ pkgAcqMetaSig(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &Target, pkgAcqMetaIndex * const MetaIndex) APT_NONNULL(2, 3, 5);
+ virtual ~pkgAcqMetaSig();
};
+ /*}}}*/
+/** \brief An item repsonsible for downloading clearsigned metaindexes {{{*/
+class APT_HIDDEN pkgAcqMetaClearSig : public pkgAcqMetaIndex
+{
+ void * const d;
+ IndexTarget const DetachedDataTarget;
+
+ public:
+ /** \brief A package-system-specific parser for the meta-index file. */
+ metaIndex *MetaIndexParser;
+ metaIndex *LastMetaIndexParser;
+
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+ virtual bool VerifyDone(std::string const &Message, pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Finished() APT_OVERRIDE;
+
+ /** \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 const verify);
+
+ /** \brief Create a new pkgAcqMetaClearSig. */
+ pkgAcqMetaClearSig(pkgAcquire * const Owner,
+ IndexTarget const &ClearsignedTarget,
+ IndexTarget const &DetachedDataTarget,
+ IndexTarget const &DetachedSigTarget,
+ metaIndex * const MetaIndexParser);
+ virtual ~pkgAcqMetaClearSig();
+};
+ /*}}}*/
+/** \brief Common base class for all classes that deal with fetching indexes {{{*/
+class APT_HIDDEN pkgAcqBaseIndex : public pkgAcqTransactionItem
+{
+ void * const d;
+
+ public:
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const APT_OVERRIDE;
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
-struct IndexTarget
+ pkgAcqBaseIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &Target) APT_NONNULL(2, 3);
+ virtual ~pkgAcqBaseIndex();
+};
+ /*}}}*/
+/** \brief An item that is responsible for fetching an index file of {{{
+ * package list diffs and starting the package list's download.
+ *
+ * This item downloads the Index file and parses it, then enqueues
+ * additional downloads of either the individual patches (using
+ * pkgAcqIndexDiffs) or the entire Packages file (using pkgAcqIndex).
+ *
+ * \sa pkgAcqIndexDiffs, pkgAcqIndex
+ */
+class APT_HIDDEN pkgAcqDiffIndex : public pkgAcqBaseIndex
{
- string URI;
- string Description;
- string ShortDesc;
- string MetaKey;
+ void * const d;
+ std::vector<pkgAcqIndexMergeDiffs*> * diffs;
+
+ protected:
+ /** \brief If \b true, debugging information will be written to std::clog. */
+ bool Debug;
+
+ /** \brief A description of the Packages file (stored in
+ * pkgAcquire::ItemDesc::Description).
+ */
+ std::string Description;
+
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const APT_OVERRIDE;
+
+ virtual bool QueueURI(pkgAcquire::ItemDesc &Item) APT_OVERRIDE;
+
+ virtual bool TransactionState(TransactionStates const state) APT_OVERRIDE;
+ public:
+ // Specialized action members
+ virtual void Failed(std::string const &Message, pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE {return Target.URI + "Index";};
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+ virtual std::string GetMetaKey() const APT_OVERRIDE;
+
+ /** \brief Parse the Index file for a set of Packages diffs.
+ *
+ * Parses the Index file and creates additional download items as
+ * necessary.
+ *
+ * \param IndexDiffFile The name of the Index file.
+ *
+ * \return \b true if the Index file was successfully parsed, \b
+ * false otherwise.
+ */
+ bool ParseDiffIndex(std::string const &IndexDiffFile);
+
+ /** \brief Create a new pkgAcqDiffIndex.
+ *
+ * \param Owner The Acquire object that owns this item.
+ *
+ * \param URI The URI of the list file to download.
+ *
+ * \param URIDesc A long description of the list file to download.
+ *
+ * \param ShortDesc A short description of the list file to download.
+ */
+ pkgAcqDiffIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &Target) APT_NONNULL(2, 3);
+ virtual ~pkgAcqDiffIndex();
+ 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;
-// Item class for index signatures
-class pkgAcqMetaSig : public pkgAcquire::Item
+ /** 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 {{{
+ * that need to be applied to a given package index file.
+ *
+ * Instead of downloading and applying each patch one by one like its
+ * sister #pkgAcqIndexDiffs this class will download all patches at once
+ * and call rred with all the patches downloaded once. Rred will then
+ * merge and apply them in one go, which should be a lot faster – but is
+ * incompatible with server-based merges of patches like reprepro can do.
+ *
+ * \sa pkgAcqDiffIndex, pkgAcqIndex
+ */
+class APT_HIDDEN pkgAcqIndexMergeDiffs : public pkgAcqBaseIndex
{
+ void * const d;
+
protected:
-
- pkgAcquire::ItemDesc Desc;
- string RealURI,MetaIndexURI,MetaIndexURIDesc,MetaIndexShortDesc;
- indexRecords* MetaIndexParser;
- const vector<struct IndexTarget*>* IndexTargets;
+
+ /** \brief If \b true, debugging output will be written to
+ * std::clog.
+ */
+ bool Debug;
+
+ /** \brief description of the file being downloaded. */
+ std::string Description;
+
+ /** \brief information about the current patch */
+ struct DiffInfo const patch;
+
+ /** \brief list of all download items for the patches */
+ std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches;
+
+ /** The current status of this patch. */
+ enum DiffState
+ {
+ /** \brief The diff is currently being fetched. */
+ StateFetchDiff,
+
+ /** \brief The diff is currently being applied. */
+ StateApplyDiff,
+
+ /** \brief the work with this diff is done */
+ StateDoneDiff,
+
+ /** \brief something bad happened and fallback was triggered */
+ StateErrorDiff
+ } State;
public:
-
- // Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string Custom600Headers();
- virtual string DescURI() {return RealURI; };
-
- pkgAcqMetaSig(pkgAcquire *Owner,string URI,string URIDesc, string ShortDesc,
- string MetaIndexURI, string MetaIndexURIDesc, string MetaIndexShortDesc,
- const vector<struct IndexTarget*>* IndexTargets,
- indexRecords* MetaIndexParser);
+ /** \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 const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE {return Target.URI + "Index";};
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+ virtual bool HashesRequired() const APT_OVERRIDE;
+
+ /** \brief Create an index merge-diff item.
+ *
+ * \param Owner The pkgAcquire object that owns this item.
+ *
+ * \param URI The URI of the package index file being
+ * reconstructed.
+ *
+ * \param URIDesc A long description of this item.
+ *
+ * \param ShortDesc A brief description of this item.
+ *
+ * \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 * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &Target, DiffInfo const &patch,
+ std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches) APT_NONNULL(2, 3, 6);
+ virtual ~pkgAcqIndexMergeDiffs();
};
+ /*}}}*/
+/** \brief An item that is responsible for fetching server-merge patches {{{
+ * that need to be applied to a given package index file.
+ *
+ * After downloading and applying a single patch, this item will
+ * enqueue a new pkgAcqIndexDiffs to download and apply the remaining
+ * patches. If no patch can be found that applies to an intermediate
+ * file or if one of the patches cannot be downloaded, falls back to
+ * downloading the entire package index file using pkgAcqIndex.
+ *
+ * \sa pkgAcqDiffIndex, pkgAcqIndex
+ */
+class APT_HIDDEN pkgAcqIndexDiffs : public pkgAcqBaseIndex
+{
+ void * const d;
+
+ private:
+
+ /** \brief Queue up the next diff download.
+ *
+ * Search for the next available diff that applies to the file
+ * that currently exists on disk, and enqueue it by calling
+ * QueueURI().
+ *
+ * \return \b true if an applicable diff was found, \b false
+ * otherwise.
+ */
+ 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 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.
+ */
+ APT_HIDDEN void Finish(bool const allDone=false);
-// Item class for index signatures
-class pkgAcqMetaIndex : public pkgAcquire::Item
+ protected:
+
+ /** \brief If \b true, debugging output will be written to
+ * std::clog.
+ */
+ bool Debug;
+
+ /** A description of the file being downloaded. */
+ std::string Description;
+
+ /** The patches that remain to be downloaded, including the patch
+ * being downloaded right now. This list should be ordered so
+ * that each diff appears before any diff that depends on it.
+ *
+ * \todo These are indexed by sha1sum; why not use some sort of
+ * dictionary instead of relying on ordering and stripping them
+ * off the front?
+ */
+ std::vector<DiffInfo> available_patches;
+
+ /** The current status of this patch. */
+ enum DiffState
+ {
+ /** \brief The diff is currently being fetched. */
+ StateFetchDiff,
+
+ /** \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 const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE {return Target.URI + "IndexDiffs";};
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+ virtual bool HashesRequired() const APT_OVERRIDE;
+
+ /** \brief Create an index diff item.
+ *
+ * After filling in its basic fields, this invokes Finish(true) if
+ * \a diffs is empty, or QueueNextDiff() otherwise.
+ *
+ * \param Owner The pkgAcquire object that owns this item.
+ *
+ * \param URI The URI of the package index file being
+ * reconstructed.
+ *
+ * \param URIDesc A long description of this item.
+ *
+ * \param ShortDesc A brief description of this item.
+ *
+ * \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 * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &Target,
+ std::vector<DiffInfo> const &diffs=std::vector<DiffInfo>()) APT_NONNULL(2, 3);
+ virtual ~pkgAcqIndexDiffs();
+};
+ /*}}}*/
+/** \brief An acquire item that is responsible for fetching an index {{{
+ * file (e.g., Packages or Sources).
+ *
+ * \sa pkgAcqDiffIndex, pkgAcqIndexDiffs, pkgAcqIndexTrans
+ *
+ * \todo Why does pkgAcqIndex have protected members?
+ */
+class APT_HIDDEN pkgAcqIndex : public pkgAcqBaseIndex
{
+ void * const d;
+
protected:
-
- pkgAcquire::ItemDesc Desc;
- string RealURI; // FIXME: is this redundant w/ Desc.URI?
- string SigFile;
- const vector<struct IndexTarget*>* IndexTargets;
- indexRecords* MetaIndexParser;
- bool AuthPass;
- // required to deal gracefully with problems caused by incorrect ims hits
- bool IMSHit;
-
- bool VerifyVendor(string Message);
- void RetrievalDone(string Message);
- void AuthDone(string Message);
- void QueueIndexes(bool verify);
-
+
+ /** \brief The stages the method goes through
+ *
+ * The method first downloads the indexfile, then its decompressed (or
+ * copied) and verified
+ */
+ enum AllStages {
+ STAGE_DOWNLOAD,
+ STAGE_DECOMPRESS_AND_VERIFY,
+ };
+ AllStages Stage;
+
+ /** \brief Handle what needs to be done when the download is done */
+ void StageDownloadDone(std::string const &Message);
+
+ /** \brief Handle what needs to be done when the decompression/copy is
+ * done
+ */
+ void StageDecompressDone();
+
+ /** \brief If \b set, this partially downloaded file will be
+ * removed when the download completes.
+ */
+ 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 CompressionExtensions;
+
+ /** \brief The actual compression extension currently used */
+ std::string CurrentCompressionExtension;
+
+ /** \brief Do the changes needed to fetch via AptByHash (if needed) */
+ void InitByHashIfNeeded();
+
+ /** \brief Get the full pathname of the final file for the current URI */
+ virtual std::string GetFinalFilename() const APT_OVERRIDE;
+
+ virtual bool TransactionState(TransactionStates const state) APT_OVERRIDE;
+
public:
-
// Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string Custom600Headers();
- virtual string DescURI() {return RealURI; };
-
- pkgAcqMetaIndex(pkgAcquire *Owner,
- string URI,string URIDesc, string ShortDesc,
- string SigFile,
- const vector<struct IndexTarget*>* IndexTargets,
- indexRecords* MetaIndexParser);
-};
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE {return Desc.URI;};
+ virtual std::string GetMetaKey() const APT_OVERRIDE;
+
+ pkgAcqIndex(pkgAcquire * const Owner, pkgAcqMetaClearSig * const TransactionManager,
+ IndexTarget const &Target) APT_NONNULL(2, 3);
+ virtual ~pkgAcqIndex();
-// Item class for archive files
+ private:
+ APT_HIDDEN void Init(std::string const &URI, std::string const &URIDesc,
+ std::string const &ShortDesc);
+};
+ /*}}}*/
+/** \brief An item that is responsible for fetching a package file. {{{
+ *
+ * If the package file already exists in the cache, nothing will be
+ * done.
+ */
class pkgAcqArchive : public pkgAcquire::Item
{
+ void * const d;
+
+ bool LocalSource;
+ HashStringList ExpectedHashes;
+
protected:
-
- // State information for the retry mechanism
+ /** \brief The package version being fetched. */
pkgCache::VerIterator Version;
- pkgAcquire::ItemDesc Desc;
+
+ /** \brief The list of sources from which to pick archives to
+ * download this package from.
+ */
pkgSourceList *Sources;
+
+ /** \brief A package records object, used to look up the file
+ * corresponding to each version of the package.
+ */
pkgRecords *Recs;
- string MD5;
- string &StoreFilename;
+
+ /** \brief A location in which the actual filename of the package
+ * should be stored.
+ */
+ std::string &StoreFilename;
+
+ /** \brief The next file for this version to try to download. */
pkgCache::VerFileIterator Vf;
+
+ /** \brief How many (more) times to try to find a new source from
+ * which to download this package version if it fails.
+ *
+ * Set from Acquire::Retries.
+ */
unsigned int Retries;
- bool Trusted;
- // Queue the next available file for download.
+ /** \brief \b true if this version file is being downloaded from a
+ * trusted source.
+ */
+ 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 APT_OVERRIDE;
+
public:
-
- // Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string MD5Sum() {return MD5;};
- virtual string DescURI() {return Desc.URI;};
- virtual string ShortDesc() {return Desc.ShortDesc;};
- virtual void Finished();
- virtual bool IsTrusted();
-
- pkgAcqArchive(pkgAcquire *Owner,pkgSourceList *Sources,
- pkgRecords *Recs,pkgCache::VerIterator const &Version,
- string &StoreFilename);
+
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &Hashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE;
+ virtual std::string ShortDesc() const APT_OVERRIDE;
+ virtual void Finished() APT_OVERRIDE;
+ virtual bool IsTrusted() const APT_OVERRIDE;
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+ virtual bool HashesRequired() const APT_OVERRIDE;
+
+ /** \brief Create a new pkgAcqArchive.
+ *
+ * \param Owner The pkgAcquire object with which this item is
+ * associated.
+ *
+ * \param Sources The sources from which to download version
+ * files.
+ *
+ * \param Recs A package records object, used to look up the file
+ * corresponding to each version of the package.
+ *
+ * \param Version The package version to download.
+ *
+ * \param[out] StoreFilename A location in which the actual filename of
+ * the package should be stored. It will be set to a guessed
+ * basename in the constructor, and filled in with a fully
+ * qualified filename once the download finishes.
+ */
+ pkgAcqArchive(pkgAcquire * const Owner,pkgSourceList * const Sources,
+ pkgRecords * const Recs,pkgCache::VerIterator const &Version,
+ std::string &StoreFilename);
+ virtual ~pkgAcqArchive();
};
+ /*}}}*/
+/** \brief Retrieve the changelog for the given version {{{
+ *
+ * Downloads the changelog to a temporary file it will also remove again
+ * while it is deconstructed or downloads it to a named location.
+ */
+class pkgAcqChangelog : public pkgAcquire::Item
+{
+ class Private;
+ Private * const d;
+ std::string TemporaryDirectory;
+ std::string const SrcName;
+ std::string const SrcVersion;
+
+ public:
+ // we will never have hashes for changelogs.
+ // If you need verified ones, download the deb and extract the changelog.
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE { return HashStringList(); }
+ virtual bool HashesRequired() const APT_OVERRIDE { return false; }
+
+ // Specialized action members
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &CalcHashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE {return Desc.URI;};
+
+ /** returns the URI to the changelog of this version
+ *
+ * @param Ver is the version to get the changelog for
+ * @return the URI which will be used to acquire the changelog
+ */
+ static std::string URI(pkgCache::VerIterator const &Ver);
+
+ /** returns the URI to the changelog of this version
+ *
+ * \param Rls is the Release file the package comes from
+ * \param Component in which the package resides, can be empty
+ * \param SrcName is the source package name
+ * \param SrcVersion is the source package version
+ * @return the URI which will be used to acquire the changelog
+ */
+ static std::string URI(pkgCache::RlsFileIterator const &Rls,
+ char const * const Component, char const * const SrcName,
+ char const * const SrcVersion);
+
+ /** returns the URI to the changelog of this version
+ *
+ * \param Template URI where @CHANGEPATH@ has to be filled in
+ * \param Component in which the package resides, can be empty
+ * \param SrcName is the source package name
+ * \param SrcVersion is the source package version
+ * @return the URI which will be used to acquire the changelog
+ */
+ static std::string URI(std::string const &Template,
+ char const * const Component, char const * const SrcName,
+ char const * const SrcVersion);
+
+ /** returns the URI template for this release file
+ *
+ * \param Rls is a Release file
+ * @return the URI template to use for this release file
+ */
+ static std::string URITemplate(pkgCache::RlsFileIterator const &Rls);
+
+ /** \brief Create a new pkgAcqChangelog object.
+ *
+ * \param Owner The pkgAcquire object with which this object is
+ * associated.
+ * \param Ver is the version to get the changelog for
+ * \param DestDir The directory the file should be downloaded into.
+ * Will be an autocreated (and cleaned up) temporary directory if not set.
+ * \param DestFilename The filename the file should have in #DestDir
+ * Defaults to sourcepackagename.changelog if not set.
+ */
+ pkgAcqChangelog(pkgAcquire * const Owner, pkgCache::VerIterator const &Ver,
+ std::string const &DestDir="", std::string const &DestFilename="");
-// Fetch a generic file to the current directory
+ /** \brief Create a new pkgAcqChangelog object.
+ *
+ * \param Owner The pkgAcquire object with which this object is
+ * associated.
+ * \param Rls is the Release file the package comes from
+ * \param Component in which the package resides, can be empty
+ * \param SrcName is the source package name
+ * \param SrcVersion is the source package version
+ * \param DestDir The directory the file should be downloaded into.
+ * Will be an autocreated (and cleaned up) temporary directory if not set.
+ * \param DestFilename The filename the file should have in #DestDir
+ * Defaults to sourcepackagename.changelog if not set.
+ */
+ pkgAcqChangelog(pkgAcquire * const Owner, pkgCache::RlsFileIterator const &Rls,
+ char const * const Component, char const * const SrcName, char const * const SrcVersion,
+ std::string const &DestDir="", std::string const &DestFilename="");
+
+ /** \brief Create a new pkgAcqChangelog object.
+ *
+ * \param Owner The pkgAcquire object with which this object is
+ * associated.
+ * \param URI is to be used to get the changelog
+ * \param SrcName is the source package name
+ * \param SrcVersion is the source package version
+ * \param DestDir The directory the file should be downloaded into.
+ * Will be an autocreated (and cleaned up) temporary directory if not set.
+ * \param DestFilename The filename the file should have in #DestDir
+ * Defaults to sourcepackagename.changelog if not set.
+ */
+ pkgAcqChangelog(pkgAcquire * const Owner, std::string const &URI,
+ char const * const SrcName, char const * const SrcVersion,
+ std::string const &DestDir="", std::string const &DestFilename="");
+
+ virtual ~pkgAcqChangelog();
+
+private:
+ APT_HIDDEN void Init(std::string const &DestDir, std::string const &DestFilename);
+};
+ /*}}}*/
+/** \brief Retrieve an arbitrary file to the current directory. {{{
+ *
+ * The file is retrieved even if it is accessed via a URL type that
+ * normally is a NOP, such as "file". If the download fails, the
+ * partial file is renamed to get a ".FAILED" extension.
+ */
class pkgAcqFile : public pkgAcquire::Item
{
- pkgAcquire::ItemDesc Desc;
- string Md5Hash;
+ void * const d;
+
+ /** \brief How many times to retry the download, set from
+ * Acquire::Retries.
+ */
unsigned int Retries;
-
+
+ /** \brief Should this file be considered a index file */
+ bool IsIndexFile;
+
+ HashStringList const ExpectedHashes;
public:
-
+ virtual HashStringList GetExpectedHashes() const APT_OVERRIDE;
+ virtual bool HashesRequired() const APT_OVERRIDE;
+
// Specialized action members
- virtual void Failed(string Message,pkgAcquire::MethodConfig *Cnf);
- virtual void Done(string Message,unsigned long Size,string Md5Hash,
- pkgAcquire::MethodConfig *Cnf);
- virtual string MD5Sum() {return Md5Hash;};
- virtual string DescURI() {return Desc.URI;};
-
- // If DestFilename is empty, download to DestDir/<basename> if
- // DestDir is non-empty, $CWD/<basename> otherwise. If
- // DestFilename is NOT empty, DestDir is ignored and DestFilename
- // is the absolute name to which the file should be downloaded.
- pkgAcqFile(pkgAcquire *Owner, string URI, string MD5, unsigned long Size,
- string Desc, string ShortDesc,
- const string &DestDir="", const string &DestFilename="");
+ virtual void Failed(std::string const &Message,pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual void Done(std::string const &Message, HashStringList const &CalcHashes,
+ pkgAcquire::MethodConfig const * const Cnf) APT_OVERRIDE;
+ virtual std::string DescURI() const APT_OVERRIDE {return Desc.URI;};
+ virtual std::string Custom600Headers() const APT_OVERRIDE;
+
+ /** \brief Create a new pkgAcqFile object.
+ *
+ * \param Owner The pkgAcquire object with which this object is
+ * associated.
+ *
+ * \param URI The URI to download.
+ *
+ * \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.
+ *
+ * \param Desc A description of the file being downloaded.
+ *
+ * \param ShortDesc A brief description of the file being
+ * downloaded.
+ *
+ * \param DestDir The directory the file should be downloaded into.
+ *
+ * \param DestFilename The filename+path the file is downloaded to.
+ *
+ * \param IsIndexFile The file is considered a IndexFile and cache-control
+ * headers like "cache-control: max-age=0" are send
+ *
+ * If DestFilename is empty, download to DestDir/\<basename\> if
+ * DestDir is non-empty, $CWD/\<basename\> otherwise. If
+ * DestFilename is NOT empty, DestDir is ignored and DestFilename
+ * is the absolute name to which the file should be downloaded.
+ */
+
+ 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);
+ virtual ~pkgAcqFile();
};
+ /*}}}*/
+/** @} */
#endif
projects / apt.git / blobdiff