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Merge remote-tracking branch 'mvo/feature/apt-ftparchive-srccache2' into debian/sid
[apt.git] / ftparchive / cachedb.cc
diff --git a/ftparchive/cachedb.cc b/ftparchive/cachedb.cc
index b04244347f4bd258a0d593712a91287fc52eaafc..e56deae1e7556bebaff869164c8d826d5dd574e9 100644 (file)
--- a/ftparchive/cachedb.cc
+++ b/ftparchive/cachedb.cc
@@ -10,23 +10,32 @@
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
    ##################################################################### */
                                                                        /*}}}*/
 // Include Files                                                       /*{{{*/
-#include "cachedb.h"
+#include <config.h>
 
 
-#include <apti18n.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/md5.h>
 #include <apt-pkg/sha1.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/md5.h>
 #include <apt-pkg/sha1.h>
-#include <apt-pkg/sha256.h>
+#include <apt-pkg/sha2.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/configuration.h>
-    
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/debfile.h>
+#include <apt-pkg/gpgv.h>
+
 #include <netinet/in.h>       // htonl, etc
 #include <netinet/in.h>       // htonl, etc
+#include <ctype.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+#include "cachedb.h"
+
+#include <apti18n.h>
                                                                        /*}}}*/
 
 // CacheDB::ReadyDB - Ready the DB2                                    /*{{{*/
 // ---------------------------------------------------------------------
 /* This opens the DB2 file for caching package information */
                                                                        /*}}}*/
 
 // CacheDB::ReadyDB - Ready the DB2                                    /*{{{*/
 // ---------------------------------------------------------------------
 /* This opens the DB2 file for caching package information */
-bool CacheDB::ReadyDB(string const &DB)
+bool CacheDB::ReadyDB(std::string const &DB)
 {
    int err;
 
 {
    int err;
 
@@ -46,7 +55,7 @@ bool CacheDB::ReadyDB(string const &DB)
    
    DBLoaded = false;
    Dbp = 0;
    
    DBLoaded = false;
    Dbp = 0;
-   DBFile = string();
+   DBFile = std::string();
    
    if (DB.empty())
       return true;
    
    if (DB.empty())
       return true;
@@ -88,14 +97,54 @@ bool CacheDB::ReadyDB(string const &DB)
 /* */
 bool CacheDB::OpenFile()
 {
 /* */
 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                      /*{{{*/
 }
                                                                        /*}}}*/
 // CacheDB::GetFileStat - Get stats from the file                      /*{{{*/
@@ -104,29 +153,26 @@ bool CacheDB::OpenFile()
  * to look at the file, also get the mtime from the file. */
 bool CacheDB::GetFileStat(bool const &doStat)
 {
  * to look at the file, also get the mtime from the file. */
 bool CacheDB::GetFileStat(bool const &doStat)
 {
-       if ((CurStat.Flags & FlSize) == FlSize && doStat == false)
-       {
-               /* 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;
+   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::GetCurStat - Set the CurStat variable.                     /*{{{*/
 }
                                                                        /*}}}*/
 // CacheDB::GetCurStat - Set the CurStat variable.                     /*{{{*/
@@ -137,76 +183,100 @@ bool CacheDB::GetCurStat()
 {
    memset(&CurStat,0,sizeof(CurStat));
    
 {
    memset(&CurStat,0,sizeof(CurStat));
    
-       if (DBLoaded)
-       {
-               /* First see if there 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)
+   {
+      /* First see if there is anything about it
+         in the database */
+      
+      /* Get the flags (and mtime) */
+      InitQueryStats();
+      // Ensure alignment of the returned structure
+      Data.data = &CurStat;
+      Data.ulen = sizeof(CurStat);
+      Data.flags = DB_DBT_USERMEM;
+      if (Get() == false)
       {
         CurStat.Flags = 0;
       }      
       {
         CurStat.Flags = 0;
       }      
-               CurStat.Flags = ntohl(CurStat.Flags);
-               CurStat.FileSize = ntohl(CurStat.FileSize);
+      CurStat.Flags = ntohl(CurStat.Flags);
+      CurStat.FileSize = ntohl(CurStat.FileSize);
    }      
    }      
-       return true;
+   return true;
 }
                                                                        /*}}}*/
 // CacheDB::GetFileInfo - Get all the info about the file              /*{{{*/
 // ---------------------------------------------------------------------
 }
                                                                        /*}}}*/
 // CacheDB::GetFileInfo - Get all the info about the file              /*{{{*/
 // ---------------------------------------------------------------------
-bool CacheDB::GetFileInfo(string const &FileName, bool const &DoControl, bool const &DoContents,
-                               bool const &GenContentsOnly, bool const &DoMD5, bool const &DoSHA1,
-                               bool const &DoSHA256, bool const &checkMtime)
+bool CacheDB::GetFileInfo(std::string const &FileName, bool const &DoControl, 
+                          bool const &DoContents,
+                          bool const &GenContentsOnly, 
+                          bool const &DoSource,
+                          bool const &DoMD5, bool const &DoSHA1,
+                          bool const &DoSHA256, bool const &DoSHA512, 
+                          bool const &checkMtime)
 {
 {
-       this->FileName = FileName;
+   bool result = true;
+   this->FileName = FileName;
 
 
-       if (GetCurStat() == false)
-   {
-               return false;
-   }   
+   if (GetCurStat() == false)
+      return false;
    OldStat = CurStat;
 
    OldStat = CurStat;
 
-       if (GetFileStat(checkMtime) == false)
-       {
-               delete Fd;
-               Fd = NULL;
-               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)
-               || (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;    
 
 
-   return true;
+   /* 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)
+       || (DoMD5 && GetMD5(false) == false)
+       || (DoSHA1 && GetSHA1(false) == false)
+       || (DoSHA256 && GetSHA256(false) == false)
+       || (DoSHA512 && GetSHA512(false) == false) )
+   {
+      result = false;
+   }
+    
+   return result;
 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/
+
+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.Data == 0)
+      return _error->Error(_("Failed to read .dsc"));
+   
+   // Write back the control information
+   InitQuerySource();
+   if (Put(Dsc.Data, Dsc.Length) == true)
+      CurStat.Flags |= FlSource;
+
+   return true;
+}
+
 // CacheDB::LoadControl - Load Control information                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // CacheDB::LoadControl - Load Control information                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
@@ -216,23 +286,14 @@ bool CacheDB::LoadControl()
    if ((CurStat.Flags & FlControl) == FlControl)
    {
       // Lookup the control information
    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 (Get() == true && Control.TakeControl(Data.data,Data.size) == true)
            return true;
       CurStat.Flags &= ~FlControl;
    }
    
-   if (Fd == NULL && OpenFile() == false)
-   {
+   if(OpenDebFile() == false)
       return 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)
    
    Stats.Misses++;
    if (Control.Read(*DebFile) == false)
@@ -242,7 +303,7 @@ bool CacheDB::LoadControl()
       return _error->Error(_("Archive has no control record"));
    
    // Write back the control information
       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;
    if (Put(Control.Control,Control.Length) == true)
       CurStat.Flags |= FlControl;
    return true;
@@ -260,7 +321,7 @@ bool CacheDB::LoadContents(bool const &GenOnly)
         return true;
       
       // Lookup the contents information
         return true;
       
       // Lookup the contents information
-      InitQuery("cn");
+      InitQueryContent();
       if (Get() == true)
       {
         if (Contents.TakeContents(Data.data,Data.size) == true)
       if (Get() == true)
       {
         if (Contents.TakeContents(Data.data,Data.size) == true)
@@ -270,35 +331,31 @@ bool CacheDB::LoadContents(bool const &GenOnly)
       CurStat.Flags &= ~FlContents;
    }
    
       CurStat.Flags &= ~FlContents;
    }
    
-   if (Fd == NULL && OpenFile() == false)
-   {
+   if(OpenDebFile() == false)
       return 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
    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;
 }
                                                                        /*}}}*/
 
    if (Put(Contents.Data,Contents.CurSize) == true)
       CurStat.Flags |= FlContents;
    return true;
 }
                                                                        /*}}}*/
 
-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);
+static std::string bytes2hex(uint8_t *bytes, size_t length) {
+   char buf[3];
+   std::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 const &dig) {
 }
 
 static inline unsigned char xdig2num(char const &dig) {
@@ -332,16 +389,15 @@ bool CacheDB::GetMD5(bool const &GenOnly)
       
       MD5Res = bytes2hex(CurStat.MD5, sizeof(CurStat.MD5));
         return true;
       
       MD5Res = bytes2hex(CurStat.MD5, sizeof(CurStat.MD5));
         return true;
-      }
+   }
    
    Stats.MD5Bytes += CurStat.FileSize;
         
    
    Stats.MD5Bytes += CurStat.FileSize;
         
-   if (Fd == NULL && OpenFile() == false)
-   {
+   if (OpenFile() == false)
       return false;
       return false;
-   }
+
    MD5Summation MD5;
    MD5Summation MD5;
-   if (Fd->Seek(0) == false || MD5.AddFD(Fd->Fd(),CurStat.FileSize) == false)
+   if (Fd->Seek(0) == false || MD5.AddFD(*Fd, CurStat.FileSize) == false)
       return false;
    
    MD5Res = MD5.Result();
       return false;
    
    MD5Res = MD5.Result();
@@ -367,12 +423,11 @@ bool CacheDB::GetSHA1(bool const &GenOnly)
    
    Stats.SHA1Bytes += CurStat.FileSize;
         
    
    Stats.SHA1Bytes += CurStat.FileSize;
         
-   if (Fd == NULL && OpenFile() == false)
-   {
+   if (OpenFile() == false)
       return false;
       return false;
-   }
+
    SHA1Summation SHA1;
    SHA1Summation SHA1;
-   if (Fd->Seek(0) == false || SHA1.AddFD(Fd->Fd(),CurStat.FileSize) == false)
+   if (Fd->Seek(0) == false || SHA1.AddFD(*Fd, CurStat.FileSize) == false)
       return false;
    
    SHA1Res = SHA1.Result();
       return false;
    
    SHA1Res = SHA1.Result();
@@ -398,12 +453,11 @@ bool CacheDB::GetSHA256(bool const &GenOnly)
    
    Stats.SHA256Bytes += CurStat.FileSize;
         
    
    Stats.SHA256Bytes += CurStat.FileSize;
         
-   if (Fd == NULL && OpenFile() == false)
-   {
+   if (OpenFile() == false)
       return false;
       return false;
-   }
+
    SHA256Summation SHA256;
    SHA256Summation SHA256;
-   if (Fd->Seek(0) == false || SHA256.AddFD(Fd->Fd(),CurStat.FileSize) == false)
+   if (Fd->Seek(0) == false || SHA256.AddFD(*Fd, CurStat.FileSize) == false)
       return false;
    
    SHA256Res = SHA256.Result();
       return false;
    
    SHA256Res = SHA256.Result();
@@ -412,6 +466,36 @@ bool CacheDB::GetSHA256(bool const &GenOnly)
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/
+// CacheDB::GetSHA256 - Get the SHA256 hash                            /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool CacheDB::GetSHA512(bool const &GenOnly)
+{
+   // Try to read the control information out of the DB.
+   if ((CurStat.Flags & FlSHA512) == FlSHA512)
+   {
+      if (GenOnly == true)
+        return true;
+
+      SHA512Res = bytes2hex(CurStat.SHA512, sizeof(CurStat.SHA512));
+      return true;
+   }
+   
+   Stats.SHA512Bytes += CurStat.FileSize;
+        
+   if (OpenFile() == false)
+      return false;
+
+   SHA512Summation SHA512;
+   if (Fd->Seek(0) == false || SHA512.AddFD(*Fd, CurStat.FileSize) == false)
+      return false;
+   
+   SHA512Res = SHA512.Result();
+   hex2bytes(CurStat.SHA512, SHA512Res.data(), sizeof(CurStat.SHA512));
+   CurStat.Flags |= FlSHA512;
+   return true;
+}
+                                                                       /*}}}*/
 // CacheDB::Finish - Write back the cache structure                    /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // CacheDB::Finish - Write back the cache structure                    /*{{{*/
 // ---------------------------------------------------------------------
 /* */
@@ -421,11 +505,11 @@ bool CacheDB::Finish()
    if (CurStat.Flags == OldStat.Flags &&
        CurStat.mtime == OldStat.mtime)
       return true;
    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);
    // 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);
    Put(&CurStat,sizeof(CurStat));
    CurStat.Flags = ntohl(CurStat.Flags);
    CurStat.FileSize = ntohl(CurStat.FileSize);
@@ -458,16 +542,24 @@ bool CacheDB::Clean()
       {
          if (stringcmp(Colon + 1, (char *)Key.data+Key.size,"st") == 0 ||
              stringcmp(Colon + 1, (char *)Key.data+Key.size,"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)
         {
              stringcmp(Colon + 1, (char *)Key.data+Key.size,"cn") == 0)
         {
-            if (FileExists(string((const char *)Key.data,Colon)) == true)
-               continue;            
+            std::string FileName = std::string((const char *)Key.data,Colon);
+            if (FileExists(FileName) == true) {
+               continue;
+            }
         }
       }
         }
       }
-      
       Cursor->c_del(Cursor,0);
    }
       Cursor->c_del(Cursor,0);
    }
-   Dbp->compact(Dbp, NULL, NULL, NULL, NULL, DB_FREE_SPACE, NULL);
+   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;
 }
 
    return true;
 }
APT (for Cydia)