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don't change owner/perms/times through file:// symlinks
[apt.git] / ftparchive / cachedb.cc
diff --git a/ftparchive/cachedb.cc b/ftparchive/cachedb.cc
index 0901492f7246394109e87c3f11c6691580acf715..868029abde4d6904785772bc7cb753a7e3dbd19e 100644 (file)
--- a/ftparchive/cachedb.cc
+++ b/ftparchive/cachedb.cc
@@ -21,29 +21,32 @@
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/debfile.h>
 #include <apt-pkg/gpgv.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/debfile.h>
 #include <apt-pkg/gpgv.h>
+#include <apt-pkg/hashes.h>
 
 #include <netinet/in.h>       // htonl, etc
 #include <ctype.h>
 #include <stddef.h>
 #include <sys/stat.h>
 
 #include <netinet/in.h>       // htonl, etc
 #include <ctype.h>
 #include <stddef.h>
 #include <sys/stat.h>
+#include <strings.h>
 
 #include "cachedb.h"
 
 #include <apti18n.h>
                                                                        /*}}}*/
 
 
 #include "cachedb.h"
 
 #include <apti18n.h>
                                                                        /*}}}*/
 
-CacheDB::CacheDB(std::string const &DB) 
+CacheDB::CacheDB(std::string const &DB)
    : Dbp(0), Fd(NULL), DebFile(0)
 {
    TmpKey[0]='\0';
    ReadyDB(DB);
    : Dbp(0), Fd(NULL), DebFile(0)
 {
    TmpKey[0]='\0';
    ReadyDB(DB);
-};
+}
 
 CacheDB::~CacheDB()
 {
    ReadyDB();
    delete DebFile;
 
 CacheDB::~CacheDB()
 {
    ReadyDB();
    delete DebFile;
-};
+   CloseFile();
+}
 
 // CacheDB::ReadyDB - Ready the DB2                                    /*{{{*/
 // ---------------------------------------------------------------------
 
 // CacheDB::ReadyDB - Ready the DB2                                    /*{{{*/
 // ---------------------------------------------------------------------
@@ -268,15 +271,10 @@ bool CacheDB::GetCurStat()
                                                                        /*}}}*/
 // CacheDB::GetFileInfo - Get all the info about the file              /*{{{*/
 // ---------------------------------------------------------------------
                                                                        /*}}}*/
 // CacheDB::GetFileInfo - Get all the info about the file              /*{{{*/
 // ---------------------------------------------------------------------
-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 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)
 {
                           bool const &checkMtime)
 {
-   bool result = true;
    this->FileName = FileName;
 
    if (GetCurStat() == false)
    this->FileName = FileName;
 
    if (GetCurStat() == false)
@@ -284,31 +282,28 @@ bool CacheDB::GetFileInfo(std::string const &FileName, bool const &DoControl,
    OldStat = CurStat;
 
    if (GetFileStat(checkMtime) == false)
    OldStat = CurStat;
 
    if (GetFileStat(checkMtime) == false)
-      return false;    
+      return false;
 
    /* if mtime changed, update CurStat from disk */
    if (checkMtime == true && OldStat.mtime != CurStat.mtime)
       CurStat.Flags = FlSize;
 
    Stats.Bytes += CurStat.FileSize;
 
    /* if mtime changed, update CurStat from disk */
    if (checkMtime == true && OldStat.mtime != CurStat.mtime)
       CurStat.Flags = FlSize;
 
    Stats.Bytes += CurStat.FileSize;
-   Stats.Packages++;
+   ++Stats.Packages;
 
    if ((DoControl && LoadControl() == false)
 
    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) )
+        || (DoContents && LoadContents(GenContentsOnly) == false)
+        || (DoSource && LoadSource() == false)
+        || (DoHashes != 0 && GetHashes(false, DoHashes) == false)
+      )
    {
    {
-      result = false;
+      return false;
    }
    }
-    
-   return result;
+
+   return true;
 }
                                                                        /*}}}*/
 }
                                                                        /*}}}*/
-
-bool CacheDB::LoadSource()
+bool CacheDB::LoadSource()                                             /*{{{*/
 {
    // Try to read the control information out of the DB.
    if ((CurStat.Flags & FlSource) == FlSource)
 {
    // Try to read the control information out of the DB.
    if ((CurStat.Flags & FlSource) == FlSource)
@@ -328,17 +323,17 @@ bool CacheDB::LoadSource()
    if (Dsc.Read(FileName) == false)
       return false;
 
    if (Dsc.Read(FileName) == false)
       return false;
 
-   if (Dsc.Data == 0)
+   if (Dsc.Length == 0)
       return _error->Error(_("Failed to read .dsc"));
       return _error->Error(_("Failed to read .dsc"));
-   
+
    // Write back the control information
    InitQuerySource();
    // Write back the control information
    InitQuerySource();
-   if (Put(Dsc.Data, Dsc.Length) == true)
+   if (Put(Dsc.Data.c_str(), Dsc.Length) == true)
       CurStat.Flags |= FlSource;
 
    return true;
 }
       CurStat.Flags |= FlSource;
 
    return true;
 }
-
+                                                                       /*}}}*/
 // CacheDB::LoadControl - Load Control information                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
 // CacheDB::LoadControl - Load Control information                     /*{{{*/
 // ---------------------------------------------------------------------
 /* */
@@ -407,7 +402,7 @@ bool CacheDB::LoadContents(bool const &GenOnly)
    return true;
 }
                                                                        /*}}}*/
    return true;
 }
                                                                        /*}}}*/
-
+// CacheDB::GetHashes - Get the hashs                                  /*{{{*/
 static std::string bytes2hex(uint8_t *bytes, size_t length) {
    char buf[3];
    std::string space;
 static std::string bytes2hex(uint8_t *bytes, size_t length) {
    char buf[3];
    std::string space;
@@ -437,125 +432,85 @@ static void hex2bytes(uint8_t *bytes, const char *hex, int length) {
       bytes++;
    } 
 }
       bytes++;
    } 
 }
-
-// CacheDB::GetMD5 - Get the MD5 hash                                  /*{{{*/
-// ---------------------------------------------------------------------
-/* */
-bool CacheDB::GetMD5(bool const &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)
+   unsigned int notCachedHashes = 0;
+   if ((CurStat.Flags & FlMD5) != FlMD5)
    {
    {
-      if (GenOnly == true)
-        return true;
-      
-      MD5Res = bytes2hex(CurStat.MD5, sizeof(CurStat.MD5));
-        return true;
+      notCachedHashes = notCachedHashes | Hashes::MD5SUM;
    }
    }
-   
-   Stats.MD5Bytes += CurStat.FileSize;
-        
-   if (OpenFile() == false)
-      return false;
-
-   MD5Summation MD5;
-   if (Fd->Seek(0) == false || MD5.AddFD(*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 const &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 (OpenFile() == false)
-      return false;
-
-   SHA1Summation SHA1;
-   if (Fd->Seek(0) == false || SHA1.AddFD(*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 const &GenOnly)
-{
-   // Try to read the control information out of the DB.
-   if ((CurStat.Flags & FlSHA256) == FlSHA256)
+   if ((CurStat.Flags & FlSHA256) != FlSHA256)
    {
    {
-      if (GenOnly == true)
-        return true;
-
-      SHA256Res = bytes2hex(CurStat.SHA256, sizeof(CurStat.SHA256));
-      return true;
+      notCachedHashes = notCachedHashes | Hashes::SHA256SUM;
    }
    }
-   
-   Stats.SHA256Bytes += CurStat.FileSize;
-        
-   if (OpenFile() == false)
-      return false;
+   if ((CurStat.Flags & FlSHA512) != FlSHA512)
+   {
+      notCachedHashes = notCachedHashes | Hashes::SHA512SUM;
+   }
+   unsigned int FlHashes = DoHashes & notCachedHashes;
+   HashesList.clear();
 
 
-   SHA256Summation SHA256;
-   if (Fd->Seek(0) == false || SHA256.AddFD(*Fd, CurStat.FileSize) == false)
-      return false;
-   
-   SHA256Res = SHA256.Result();
-   hex2bytes(CurStat.SHA256, SHA256Res.data(), sizeof(CurStat.SHA256));
-   CurStat.Flags |= FlSHA256;
-   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 (FlHashes != 0)
    {
    {
-      if (GenOnly == true)
-        return true;
+      if (OpenFile() == false)
+        return false;
 
 
-      SHA512Res = bytes2hex(CurStat.SHA512, sizeof(CurStat.SHA512));
-      return true;
+      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());
+      }
    }
    }
-   
-   Stats.SHA512Bytes += CurStat.FileSize;
-        
-   if (OpenFile() == false)
-      return false;
+   if (GenOnly == true)
+      return true;
 
 
-   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;
+   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                    /*{{{*/
 }
                                                                        /*}}}*/
 // CacheDB::Finish - Write back the cache structure                    /*{{{*/
APT (for Cydia)