X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/75e94aee76df0256eea7fbd8558437b93af28347..3465138575e1fd0d5892d9b6be1ae232eb873460:/ftparchive/cachedb.cc?ds=sidebyside diff --git a/ftparchive/cachedb.cc b/ftparchive/cachedb.cc index 0e6078642..868029abd 100644 --- a/ftparchive/cachedb.cc +++ b/ftparchive/cachedb.cc @@ -10,27 +10,48 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#ifdef __GNUG__ -#pragma implementation "cachedb.h" -#endif +#include -#include "cachedb.h" - -#include #include #include #include -#include +#include #include #include - +#include +#include +#include +#include + #include // htonl, etc +#include +#include +#include +#include + +#include "cachedb.h" + +#include /*}}}*/ +CacheDB::CacheDB(std::string const &DB) + : Dbp(0), Fd(NULL), DebFile(0) +{ + TmpKey[0]='\0'; + ReadyDB(DB); +} + +CacheDB::~CacheDB() +{ + ReadyDB(); + delete DebFile; + CloseFile(); +} + // CacheDB::ReadyDB - Ready the DB2 /*{{{*/ // --------------------------------------------------------------------- /* This opens the DB2 file for caching package information */ -bool CacheDB::ReadyDB(string DB) +bool CacheDB::ReadyDB(std::string const &DB) { int err; @@ -50,7 +71,7 @@ bool CacheDB::ReadyDB(string DB) DBLoaded = false; Dbp = 0; - DBFile = string(); + DBFile = std::string(); if (DB.empty()) return true; @@ -73,7 +94,7 @@ bool CacheDB::ReadyDB(string DB) // apt 0.6.44 if (err == EINVAL) { - _error->Error(_("DB format is invalid. If you upgraded from a older version of apt, please remove and re-create the database.")); + _error->Error(_("DB format is invalid. If you upgraded from an older version of apt, please remove and re-create the database.")); } if (err) { @@ -81,56 +102,132 @@ bool CacheDB::ReadyDB(string DB) return _error->Error(_("Unable to open DB file %s: %s"),DB.c_str(), db_strerror(err)); } } - + DBFile = DB; DBLoaded = true; return true; } /*}}}*/ -// CacheDB::OpenFile - Open the filei /*{{{*/ +// CacheDB::OpenFile - Open the file /*{{{*/ // --------------------------------------------------------------------- /* */ bool CacheDB::OpenFile() { - Fd = new FileFd(FileName,FileFd::ReadOnly); - if (_error->PendingError() == true) - { - delete Fd; - Fd = NULL; - return false; - } - return true; + // always close existing file first + CloseFile(); + + // open a new file + Fd = new FileFd(FileName,FileFd::ReadOnly); + if (_error->PendingError() == true) + { + CloseFile(); + return false; + } + return true; +} + /*}}}*/ +// CacheDB::CloseFile - Close the file /*{{{*/ +void CacheDB::CloseFile() +{ + if(Fd != NULL) + { + delete Fd; + Fd = NULL; + } +} + /*}}}*/ +// CacheDB::OpenDebFile - Open a debfile /*{{{*/ +bool CacheDB::OpenDebFile() +{ + // always close existing file first + CloseDebFile(); + + // first open the fd, then pass it to the debDebFile + if(OpenFile() == false) + return false; + DebFile = new debDebFile(*Fd); + if (_error->PendingError() == true) + return false; + return true; +} + /*}}}*/ +// CacheDB::CloseDebFile - Close a debfile again /*{{{*/ +void CacheDB::CloseDebFile() +{ + CloseFile(); + + if(DebFile != NULL) + { + delete DebFile; + DebFile = NULL; + } } /*}}}*/ // CacheDB::GetFileStat - Get stats from the file /*{{{*/ // --------------------------------------------------------------------- /* This gets the size from the database if it's there. If we need * to look at the file, also get the mtime from the file. */ -bool CacheDB::GetFileStat() +bool CacheDB::GetFileStat(bool const &doStat) +{ + if ((CurStat.Flags & FlSize) == FlSize && doStat == false) + return true; + + /* Get it from the file. */ + if (OpenFile() == false) + return false; + + // Stat the file + struct stat St; + if (fstat(Fd->Fd(),&St) != 0) + { + CloseFile(); + return _error->Errno("fstat", + _("Failed to stat %s"),FileName.c_str()); + } + CurStat.FileSize = St.st_size; + CurStat.mtime = htonl(St.st_mtime); + CurStat.Flags |= FlSize; + + return true; +} + /*}}}*/ +// CacheDB::GetCurStatCompatOldFormat /*{{{*/ +// --------------------------------------------------------------------- +/* Read the old (32bit FileSize) StateStore format from disk */ +bool CacheDB::GetCurStatCompatOldFormat() +{ + InitQueryStats(); + Data.data = &CurStatOldFormat; + Data.flags = DB_DBT_USERMEM; + Data.ulen = sizeof(CurStatOldFormat); + if (Get() == false) + { + CurStat.Flags = 0; + } else { + CurStat.Flags = CurStatOldFormat.Flags; + CurStat.mtime = CurStatOldFormat.mtime; + CurStat.FileSize = CurStatOldFormat.FileSize; + memcpy(CurStat.MD5, CurStatOldFormat.MD5, sizeof(CurStat.MD5)); + memcpy(CurStat.SHA1, CurStatOldFormat.SHA1, sizeof(CurStat.SHA1)); + memcpy(CurStat.SHA256, CurStatOldFormat.SHA256, sizeof(CurStat.SHA256)); + } + return true; +} + /*}}}*/ +// CacheDB::GetCurStatCompatOldFormat /*{{{*/ +// --------------------------------------------------------------------- +/* Read the new (64bit FileSize) StateStore format from disk */ +bool CacheDB::GetCurStatCompatNewFormat() { - if ((CurStat.Flags & FlSize) == FlSize) - { - /* Already worked out the file size */ - } - else - { - /* Get it from the file. */ - if (Fd == NULL && OpenFile() == false) - { - return false; - } - // Stat the file - struct stat St; - if (fstat(Fd->Fd(),&St) != 0) - { - return _error->Errno("fstat", - _("Failed to stat %s"),FileName.c_str()); - } - CurStat.FileSize = St.st_size; - CurStat.mtime = htonl(St.st_mtime); - CurStat.Flags |= FlSize; - } - return true; + InitQueryStats(); + Data.data = &CurStat; + Data.flags = DB_DBT_USERMEM; + Data.ulen = sizeof(CurStat); + if (Get() == false) + { + CurStat.Flags = 0; + } + return true; } /*}}}*/ // CacheDB::GetCurStat - Set the CurStat variable. /*{{{*/ @@ -141,68 +238,98 @@ bool CacheDB::GetCurStat() { memset(&CurStat,0,sizeof(CurStat)); - if (DBLoaded) - { - /* First see if thre is anything about it - in the database */ - - /* Get the flags (and mtime) */ - InitQuery("st"); - // Ensure alignment of the returned structure - Data.data = &CurStat; - Data.ulen = sizeof(CurStat); - Data.flags = DB_DBT_USERMEM; - if (Get() == false) + if (DBLoaded) + { + // do a first query to just get the size of the data on disk + InitQueryStats(); + Data.data = &CurStat; + Data.flags = DB_DBT_USERMEM; + Data.ulen = 0; + Get(); + + if (Data.size == 0) { - CurStat.Flags = 0; - } - CurStat.Flags = ntohl(CurStat.Flags); - CurStat.FileSize = ntohl(CurStat.FileSize); + // nothing needs to be done, we just have not data for this deb + } + // check if the record is written in the old format (32bit filesize) + else if(Data.size == sizeof(CurStatOldFormat)) + { + GetCurStatCompatOldFormat(); + } + else if(Data.size == sizeof(CurStat)) + { + GetCurStatCompatNewFormat(); + } else { + return _error->Error("Cache record size mismatch (%ul)", Data.size); + } + + CurStat.Flags = ntohl(CurStat.Flags); + CurStat.FileSize = ntohl(CurStat.FileSize); } - return true; + return true; } /*}}}*/ // CacheDB::GetFileInfo - Get all the info about the file /*{{{*/ // --------------------------------------------------------------------- -bool CacheDB::GetFileInfo(string FileName, bool DoControl, bool DoContents, - bool GenContentsOnly, - bool DoMD5, bool DoSHA1, bool DoSHA256) +bool CacheDB::GetFileInfo(std::string const &FileName, bool const &DoControl, bool const &DoContents, + bool const &GenContentsOnly, bool const DoSource, unsigned int const DoHashes, + bool const &checkMtime) { - this->FileName = FileName; + this->FileName = FileName; - if (GetCurStat() == false) - { - return false; - } + if (GetCurStat() == false) + return false; OldStat = CurStat; - - if (GetFileStat() == false) - { - delete Fd; - Fd = NULL; - return false; - } - - Stats.Bytes += CurStat.FileSize; - Stats.Packages++; - - if (DoControl && LoadControl() == false - || DoContents && LoadContents(GenContentsOnly) == false - || DoMD5 && GetMD5(false) == false - || DoSHA1 && GetSHA1(false) == false - || DoSHA256 && GetSHA256(false) == false) - { - delete Fd; - Fd = NULL; - delete DebFile; - DebFile = NULL; - return false; - } - - delete Fd; - Fd = NULL; - delete DebFile; - DebFile = NULL; + + if (GetFileStat(checkMtime) == false) + return false; + + /* if mtime changed, update CurStat from disk */ + if (checkMtime == true && OldStat.mtime != CurStat.mtime) + CurStat.Flags = FlSize; + + Stats.Bytes += CurStat.FileSize; + ++Stats.Packages; + + if ((DoControl && LoadControl() == false) + || (DoContents && LoadContents(GenContentsOnly) == false) + || (DoSource && LoadSource() == false) + || (DoHashes != 0 && GetHashes(false, DoHashes) == false) + ) + { + return false; + } + + return true; +} + /*}}}*/ +bool CacheDB::LoadSource() /*{{{*/ +{ + // Try to read the control information out of the DB. + if ((CurStat.Flags & FlSource) == FlSource) + { + // Lookup the control information + InitQuerySource(); + if (Get() == true && Dsc.TakeDsc(Data.data, Data.size) == true) + { + return true; + } + CurStat.Flags &= ~FlSource; + } + if (OpenFile() == false) + return false; + + Stats.Misses++; + if (Dsc.Read(FileName) == false) + return false; + + if (Dsc.Length == 0) + return _error->Error(_("Failed to read .dsc")); + + // Write back the control information + InitQuerySource(); + if (Put(Dsc.Data.c_str(), Dsc.Length) == true) + CurStat.Flags |= FlSource; return true; } @@ -216,23 +343,14 @@ bool CacheDB::LoadControl() if ((CurStat.Flags & FlControl) == FlControl) { // Lookup the control information - InitQuery("cl"); + InitQueryControl(); if (Get() == true && Control.TakeControl(Data.data,Data.size) == true) return true; CurStat.Flags &= ~FlControl; } - if (Fd == NULL && OpenFile() == false) - { + if(OpenDebFile() == false) return false; - } - // Create a deb instance to read the archive - if (DebFile == 0) - { - DebFile = new debDebFile(*Fd); - if (_error->PendingError() == true) - return false; - } Stats.Misses++; if (Control.Read(*DebFile) == false) @@ -242,7 +360,7 @@ bool CacheDB::LoadControl() return _error->Error(_("Archive has no control record")); // Write back the control information - InitQuery("cl"); + InitQueryControl(); if (Put(Control.Control,Control.Length) == true) CurStat.Flags |= FlControl; return true; @@ -251,7 +369,7 @@ bool CacheDB::LoadControl() // CacheDB::LoadContents - Load the File Listing /*{{{*/ // --------------------------------------------------------------------- /* */ -bool CacheDB::LoadContents(bool GenOnly) +bool CacheDB::LoadContents(bool const &GenOnly) { // Try to read the control information out of the DB. if ((CurStat.Flags & FlContents) == FlContents) @@ -260,7 +378,7 @@ bool CacheDB::LoadContents(bool GenOnly) return true; // Lookup the contents information - InitQuery("cn"); + InitQueryContent(); if (Get() == true) { if (Contents.TakeContents(Data.data,Data.size) == true) @@ -270,38 +388,34 @@ bool CacheDB::LoadContents(bool GenOnly) CurStat.Flags &= ~FlContents; } - if (Fd == NULL && OpenFile() == false) - { + if(OpenDebFile() == false) return false; - } - // Create a deb instance to read the archive - if (DebFile == 0) - { - DebFile = new debDebFile(*Fd); - if (_error->PendingError() == true) - return false; - } + Stats.Misses++; if (Contents.Read(*DebFile) == false) return false; // Write back the control information - InitQuery("cn"); + InitQueryContent(); if (Put(Contents.Data,Contents.CurSize) == true) CurStat.Flags |= FlContents; return true; } /*}}}*/ +// CacheDB::GetHashes - Get the hashs /*{{{*/ +static std::string bytes2hex(uint8_t *bytes, size_t length) { + char buf[3]; + std::string space; -static string bytes2hex(uint8_t *bytes, size_t length) { - char space[65]; - if (length * 2 > sizeof(space) - 1) length = (sizeof(space) - 1) / 2; - for (size_t i = 0; i < length; i++) - snprintf(&space[i*2], 3, "%02x", bytes[i]); - return string(space); + space.reserve(length*2 + 1); + for (size_t i = 0; i < length; i++) { + snprintf(buf, sizeof(buf), "%02x", bytes[i]); + space.append(buf); + } + return space; } -static inline unsigned char xdig2num(char dig) { +static inline unsigned char xdig2num(char const &dig) { if (isdigit(dig)) return dig - '0'; if ('a' <= dig && dig <= 'f') return dig - 'a' + 10; if ('A' <= dig && dig <= 'F') return dig - 'A' + 10; @@ -318,98 +432,85 @@ static void hex2bytes(uint8_t *bytes, const char *hex, int length) { bytes++; } } - -// CacheDB::GetMD5 - Get the MD5 hash /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool CacheDB::GetMD5(bool GenOnly) +bool CacheDB::GetHashes(bool const GenOnly, unsigned int const DoHashes) { - // Try to read the control information out of the DB. - if ((CurStat.Flags & FlMD5) == FlMD5) - { - if (GenOnly == true) - return true; - - MD5Res = bytes2hex(CurStat.MD5, sizeof(CurStat.MD5)); - return true; - } - - Stats.MD5Bytes += CurStat.FileSize; - - if (Fd == NULL && OpenFile() == false) + unsigned int notCachedHashes = 0; + if ((CurStat.Flags & FlMD5) != FlMD5) { - return false; + notCachedHashes = notCachedHashes | Hashes::MD5SUM; } - MD5Summation MD5; - if (Fd->Seek(0) == false || MD5.AddFD(Fd->Fd(),CurStat.FileSize) == false) - return false; - - MD5Res = MD5.Result(); - hex2bytes(CurStat.MD5, MD5Res.data(), sizeof(CurStat.MD5)); - CurStat.Flags |= FlMD5; - return true; -} - /*}}}*/ -// CacheDB::GetSHA1 - Get the SHA1 hash /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool CacheDB::GetSHA1(bool GenOnly) -{ - // Try to read the control information out of the DB. - if ((CurStat.Flags & FlSHA1) == FlSHA1) + if ((CurStat.Flags & FlSHA1) != FlSHA1) { - if (GenOnly == true) - return true; - - SHA1Res = bytes2hex(CurStat.SHA1, sizeof(CurStat.SHA1)); - return true; + notCachedHashes = notCachedHashes | Hashes::SHA1SUM; } - - Stats.SHA1Bytes += CurStat.FileSize; - - if (Fd == NULL && OpenFile() == false) + if ((CurStat.Flags & FlSHA256) != FlSHA256) { - return false; + notCachedHashes = notCachedHashes | Hashes::SHA256SUM; } - SHA1Summation SHA1; - if (Fd->Seek(0) == false || SHA1.AddFD(Fd->Fd(),CurStat.FileSize) == false) - return false; - - SHA1Res = SHA1.Result(); - hex2bytes(CurStat.SHA1, SHA1Res.data(), sizeof(CurStat.SHA1)); - CurStat.Flags |= FlSHA1; - return true; -} - /*}}}*/ -// CacheDB::GetSHA256 - Get the SHA256 hash /*{{{*/ -// --------------------------------------------------------------------- -/* */ -bool CacheDB::GetSHA256(bool GenOnly) -{ - // Try to read the control information out of the DB. - if ((CurStat.Flags & FlSHA256) == FlSHA256) + if ((CurStat.Flags & FlSHA512) != FlSHA512) { - if (GenOnly == true) - return true; - - SHA256Res = bytes2hex(CurStat.SHA256, sizeof(CurStat.SHA256)); - return true; + notCachedHashes = notCachedHashes | Hashes::SHA512SUM; } - - Stats.SHA256Bytes += CurStat.FileSize; - - if (Fd == NULL && OpenFile() == false) + unsigned int FlHashes = DoHashes & notCachedHashes; + HashesList.clear(); + + if (FlHashes != 0) { - return false; + if (OpenFile() == false) + return false; + + Hashes hashes(FlHashes); + if (Fd->Seek(0) == false || hashes.AddFD(*Fd, CurStat.FileSize) == false) + return false; + + HashStringList hl = hashes.GetHashStringList(); + for (HashStringList::const_iterator hs = hl.begin(); hs != hl.end(); ++hs) + { + HashesList.push_back(*hs); + if (strcasecmp(hs->HashType().c_str(), "SHA512") == 0) + { + Stats.SHA512Bytes += CurStat.FileSize; + hex2bytes(CurStat.SHA512, hs->HashValue().data(), sizeof(CurStat.SHA512)); + CurStat.Flags |= FlSHA512; + } + else if (strcasecmp(hs->HashType().c_str(), "SHA256") == 0) + { + Stats.SHA256Bytes += CurStat.FileSize; + hex2bytes(CurStat.SHA256, hs->HashValue().data(), sizeof(CurStat.SHA256)); + CurStat.Flags |= FlSHA256; + } + else if (strcasecmp(hs->HashType().c_str(), "SHA1") == 0) + { + Stats.SHA1Bytes += CurStat.FileSize; + hex2bytes(CurStat.SHA1, hs->HashValue().data(), sizeof(CurStat.SHA1)); + CurStat.Flags |= FlSHA1; + } + else if (strcasecmp(hs->HashType().c_str(), "MD5Sum") == 0) + { + Stats.MD5Bytes += CurStat.FileSize; + hex2bytes(CurStat.MD5, hs->HashValue().data(), sizeof(CurStat.MD5)); + CurStat.Flags |= FlMD5; + } + else if (strcasecmp(hs->HashType().c_str(), "Checksum-FileSize") == 0) + { + // we store it in a different field already + } + else + return _error->Error("Got unknown unrequested hashtype %s", hs->HashType().c_str()); + } } - SHA256Summation SHA256; - if (Fd->Seek(0) == false || SHA256.AddFD(Fd->Fd(),CurStat.FileSize) == false) - return false; - - SHA256Res = SHA256.Result(); - hex2bytes(CurStat.SHA256, SHA256Res.data(), sizeof(CurStat.SHA256)); - CurStat.Flags |= FlSHA256; - return true; + if (GenOnly == true) + return true; + + bool ret = true; +#define PUSH_BACK_HASH(FLAG, TYPE, VALUE) \ + if ((CurStat.Flags & FLAG) == FLAG) \ + ret &= HashesList.push_back(HashString(TYPE, bytes2hex(VALUE, sizeof(VALUE)))); + PUSH_BACK_HASH(FlMD5, "MD5Sum", CurStat.MD5); + PUSH_BACK_HASH(FlSHA1, "SHA1", CurStat.SHA1); + PUSH_BACK_HASH(FlSHA256, "SHA256", CurStat.SHA256); + PUSH_BACK_HASH(FlSHA512, "SHA512", CurStat.SHA512); + return ret; } /*}}}*/ // CacheDB::Finish - Write back the cache structure /*{{{*/ @@ -421,11 +522,11 @@ bool CacheDB::Finish() if (CurStat.Flags == OldStat.Flags && CurStat.mtime == OldStat.mtime) return true; - + // Write the stat information CurStat.Flags = htonl(CurStat.Flags); CurStat.FileSize = htonl(CurStat.FileSize); - InitQuery("st"); + InitQueryStats(); Put(&CurStat,sizeof(CurStat)); CurStat.Flags = ntohl(CurStat.Flags); CurStat.FileSize = ntohl(CurStat.FileSize); @@ -453,21 +554,29 @@ bool CacheDB::Clean() memset(&Data,0,sizeof(Data)); while ((errno = Cursor->c_get(Cursor,&Key,&Data,DB_NEXT)) == 0) { - const char *Colon = (char *)Key.data; - for (; Colon != (char *)Key.data+Key.size && *Colon != ':'; Colon++); - if ((char *)Key.data+Key.size - Colon > 2) + const char *Colon = (char*)memrchr(Key.data, ':', Key.size); + if (Colon) { - if (stringcmp((char *)Key.data,Colon,"st") == 0 || - stringcmp((char *)Key.data,Colon,"cn") == 0 || - stringcmp((char *)Key.data,Colon,"cl") == 0) + if (stringcmp(Colon + 1, (char *)Key.data+Key.size,"st") == 0 || + stringcmp(Colon + 1, (char *)Key.data+Key.size,"cl") == 0 || + stringcmp(Colon + 1, (char *)Key.data+Key.size,"cs") == 0 || + stringcmp(Colon + 1, (char *)Key.data+Key.size,"cn") == 0) { - if (FileExists(string(Colon+1,(const char *)Key.data+Key.size)) == true) - continue; + std::string FileName = std::string((const char *)Key.data,Colon); + if (FileExists(FileName) == true) { + continue; + } } } - Cursor->c_del(Cursor,0); } + int res = Dbp->compact(Dbp, NULL, NULL, NULL, NULL, DB_FREE_SPACE, NULL); + if (res < 0) + _error->Warning("compact failed with result %i", res); + + if(_config->FindB("Debug::APT::FTPArchive::Clean", false) == true) + Dbp->stat_print(Dbp, 0); + return true; }