merged lp:~mvo/apt/fix-inrelease5

12 files changed, 544 insertions, 168 deletions

diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index a71886a87..9b7862111 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -1503,20 +1503,17 @@ void pkgAcqMetaIndex::Failed(string Message,pkgAcquire::MethodConfig *Cnf)
    if (AuthPass == true)
    {
       // gpgv method failed, if we have a good signature 
-      string LastGoodSigFile = _config->FindDir("Dir::State::lists");
-      if (DestFile == SigFile)
-	 LastGoodSigFile.append(URItoFileName(RealURI));
-      else
-	 LastGoodSigFile.append("partial/").append(URItoFileName(RealURI)).append(".gpg.reverify");
+      string LastGoodSigFile = _config->FindDir("Dir::State::lists").append("partial/").append(URItoFileName(RealURI));
+      if (DestFile != SigFile)
+	 LastGoodSigFile.append(".gpg");
+      LastGoodSigFile.append(".reverify");
 
       if(FileExists(LastGoodSigFile))
       {
+	 string VerifiedSigFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
 	 if (DestFile != SigFile)
-	 {
-	    string VerifiedSigFile = _config->FindDir("Dir::State::lists") +
-					URItoFileName(RealURI) + ".gpg";
-	    Rename(LastGoodSigFile,VerifiedSigFile);
-	 }
+	    VerifiedSigFile.append(".gpg");
+	 Rename(LastGoodSigFile, VerifiedSigFile);
 	 Status = StatTransientNetworkError;
 	 _error->Warning(_("A error occurred during the signature "
 			   "verification. The repository is not updated "
@@ -1577,6 +1574,15 @@ pkgAcqMetaClearSig::pkgAcqMetaClearSig(pkgAcquire *Owner,		/*{{{*/
 	MetaSigURI(MetaSigURI), MetaSigURIDesc(MetaSigURIDesc), MetaSigShortDesc(MetaSigShortDesc)
 {
    SigFile = DestFile;
+
+   // keep the old InRelease around in case of transistent network errors
+   string const Final = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
+   struct stat Buf;
+   if (stat(Final.c_str(),&Buf) == 0)
+   {
+      string const LastGoodSig = DestFile + ".reverify";
+      Rename(Final,LastGoodSig);
+   }
 }
 									/*}}}*/
 // pkgAcqMetaClearSig::Custom600Headers - Insert custom request headers	/*{{{*/
diff --git a/apt-pkg/contrib/gpgv.cc b/apt-pkg/contrib/gpgv.cc
new file mode 100644
index 000000000..ba059dd87
--- /dev/null
+++ b/apt-pkg/contrib/gpgv.cc
@@ -0,0 +1,385 @@
+// -*- mode: cpp; mode: fold -*-
+// Include Files							/*{{{*/
+#include<config.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include<apt-pkg/configuration.h>
+#include<apt-pkg/error.h>
+#include<apt-pkg/strutl.h>
+#include<apt-pkg/fileutl.h>
+#include<apt-pkg/gpgv.h>
+
+#include <apti18n.h>
+									/*}}}*/
+static char * GenerateTemporaryFileTemplate(const char *basename)	/*{{{*/
+{
+   const char *tmpdir = getenv("TMPDIR");
+#ifdef P_tmpdir
+   if (!tmpdir)
+      tmpdir = P_tmpdir;
+#endif
+   if (!tmpdir)
+      tmpdir = "/tmp";
+
+   std::string out;
+   strprintf(out,  "%s/%s.XXXXXX", tmpdir, basename);
+   return strdup(out.c_str());
+}
+									/*}}}*/
+// ExecGPGV - returns the command needed for verify			/*{{{*/
+// ---------------------------------------------------------------------
+/* Generating the commandline for calling gpgv is somehow complicated as
+   we need to add multiple keyrings and user supplied options.
+   Also, as gpgv has no options to enforce a certain reduced style of
+   clear-signed files (=the complete content of the file is signed and
+   the content isn't encoded) we do a divide and conquer approach here
+   and split up the clear-signed file in message and signature for gpgv
+*/
+void ExecGPGV(std::string const &File, std::string const &FileGPG,
+             int const &statusfd, int fd[2])
+{
+   #define EINTERNAL 111
+   std::string const gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
+   // FIXME: remove support for deprecated APT::GPGV setting
+   std::string const trustedFile = _config->Find("APT::GPGV::TrustedKeyring", _config->FindFile("Dir::Etc::Trusted"));
+   std::string const trustedPath = _config->FindDir("Dir::Etc::TrustedParts");
+
+   bool const Debug = _config->FindB("Debug::Acquire::gpgv", false);
+
+   if (Debug == true)
+   {
+      std::clog << "gpgv path: " << gpgvpath << std::endl;
+      std::clog << "Keyring file: " << trustedFile << std::endl;
+      std::clog << "Keyring path: " << trustedPath << std::endl;
+   }
+
+   std::vector<std::string> keyrings;
+   if (DirectoryExists(trustedPath))
+     keyrings = GetListOfFilesInDir(trustedPath, "gpg", false, true);
+   if (RealFileExists(trustedFile) == true)
+     keyrings.push_back(trustedFile);
+
+   std::vector<const char *> Args;
+   Args.reserve(30);
+
+   if (keyrings.empty() == true)
+   {
+      // TRANSLATOR: %s is the trusted keyring parts directory
+      ioprintf(std::cerr, _("No keyring installed in %s."),
+	    _config->FindDir("Dir::Etc::TrustedParts").c_str());
+      exit(EINTERNAL);
+   }
+
+   Args.push_back(gpgvpath.c_str());
+   Args.push_back("--ignore-time-conflict");
+
+   char statusfdstr[10];
+   if (statusfd != -1)
+   {
+      Args.push_back("--status-fd");
+      snprintf(statusfdstr, sizeof(statusfdstr), "%i", statusfd);
+      Args.push_back(statusfdstr);
+   }
+
+   for (std::vector<std::string>::const_iterator K = keyrings.begin();
+	K != keyrings.end(); ++K)
+   {
+      Args.push_back("--keyring");
+      Args.push_back(K->c_str());
+   }
+
+   Configuration::Item const *Opts;
+   Opts = _config->Tree("Acquire::gpgv::Options");
+   if (Opts != 0)
+   {
+      Opts = Opts->Child;
+      for (; Opts != 0; Opts = Opts->Next)
+      {
+	 if (Opts->Value.empty() == true)
+	    continue;
+	 Args.push_back(Opts->Value.c_str());
+      }
+   }
+
+   std::vector<std::string> dataHeader;
+   char * sig = NULL;
+   char * data = NULL;
+
+   // file with detached signature
+   if (FileGPG != File)
+   {
+      Args.push_back(FileGPG.c_str());
+      Args.push_back(File.c_str());
+   }
+   else // clear-signed file
+   {
+      sig = GenerateTemporaryFileTemplate("apt.sig");
+      data = GenerateTemporaryFileTemplate("apt.data");
+      if (sig == NULL || data == NULL)
+      {
+	 ioprintf(std::cerr, "Couldn't create tempfile names for splitting up %s", File.c_str());
+	 exit(EINTERNAL);
+      }
+
+      int const sigFd = mkstemp(sig);
+      int const dataFd = mkstemp(data);
+      if (sigFd == -1 || dataFd == -1)
+      {
+	 if (dataFd != -1)
+	    unlink(sig);
+	 if (sigFd != -1)
+	    unlink(data);
+	 ioprintf(std::cerr, "Couldn't create tempfiles for splitting up %s", File.c_str());
+	 exit(EINTERNAL);
+      }
+
+      FileFd signature;
+      signature.OpenDescriptor(sigFd, FileFd::WriteOnly, true);
+      FileFd message;
+      message.OpenDescriptor(dataFd, FileFd::WriteOnly, true);
+
+      if (signature.Failed() == true || message.Failed() == true ||
+	    SplitClearSignedFile(File, &message, &dataHeader, &signature) == false)
+      {
+	 if (dataFd != -1)
+	    unlink(sig);
+	 if (sigFd != -1)
+	    unlink(data);
+	 ioprintf(std::cerr, "Splitting up %s into data and signature failed", File.c_str());
+	 exit(EINTERNAL);
+      }
+      Args.push_back(sig);
+      Args.push_back(data);
+   }
+
+   Args.push_back(NULL);
+
+   if (Debug == true)
+   {
+      std::clog << "Preparing to exec: " << gpgvpath;
+      for (std::vector<const char *>::const_iterator a = Args.begin(); *a != NULL; ++a)
+	 std::clog << " " << *a;
+      std::clog << std::endl;
+   }
+
+   if (statusfd != -1)
+   {
+      int const nullfd = open("/dev/null", O_RDONLY);
+      close(fd[0]);
+      // Redirect output to /dev/null; we read from the status fd
+      if (statusfd != STDOUT_FILENO)
+	 dup2(nullfd, STDOUT_FILENO);
+      if (statusfd != STDERR_FILENO)
+	 dup2(nullfd, STDERR_FILENO);
+      // Redirect the pipe to the status fd (3)
+      dup2(fd[1], statusfd);
+
+      putenv((char *)"LANG=");
+      putenv((char *)"LC_ALL=");
+      putenv((char *)"LC_MESSAGES=");
+   }
+
+   if (FileGPG != File)
+   {
+      execvp(gpgvpath.c_str(), (char **) &Args[0]);
+      ioprintf(std::cerr, "Couldn't execute %s to check %s", Args[0], File.c_str());
+      exit(EINTERNAL);
+   }
+   else
+   {
+//#define UNLINK_EXIT(X) exit(X)
+#define UNLINK_EXIT(X) unlink(sig);unlink(data);exit(X)
+
+      // for clear-signed files we have created tempfiles we have to clean up
+      // and we do an additional check, so fork yet another time …
+      pid_t pid = ExecFork();
+      if(pid < 0) {
+	 ioprintf(std::cerr, "Fork failed for %s to check %s", Args[0], File.c_str());
+	 UNLINK_EXIT(EINTERNAL);
+      }
+      if(pid == 0)
+      {
+	 if (statusfd != -1)
+	    dup2(fd[1], statusfd);
+	 execvp(gpgvpath.c_str(), (char **) &Args[0]);
+	 ioprintf(std::cerr, "Couldn't execute %s to check %s", Args[0], File.c_str());
+	 UNLINK_EXIT(EINTERNAL);
+      }
+
+      // Wait and collect the error code - taken from WaitPid as we need the exact Status
+      int Status;
+      while (waitpid(pid,&Status,0) != pid)
+      {
+	 if (errno == EINTR)
+	    continue;
+	 ioprintf(std::cerr, _("Waited for %s but it wasn't there"), "gpgv");
+	 UNLINK_EXIT(EINTERNAL);
+      }
+#undef UNLINK_EXIT
+      // we don't need the files any longer
+      unlink(sig);
+      unlink(data);
+      free(sig);
+      free(data);
+
+      // check if it exit'ed normally …
+      if (WIFEXITED(Status) == false)
+      {
+	 ioprintf(std::cerr, _("Sub-process %s exited unexpectedly"), "gpgv");
+	 exit(EINTERNAL);
+      }
+
+      // … and with a good exit code
+      if (WEXITSTATUS(Status) != 0)
+      {
+	 ioprintf(std::cerr, _("Sub-process %s returned an error code (%u)"), "gpgv", WEXITSTATUS(Status));
+	 exit(WEXITSTATUS(Status));
+      }
+
+      // everything fine
+      exit(0);
+   }
+   exit(EINTERNAL); // unreachable safe-guard
+}
+									/*}}}*/
+// SplitClearSignedFile - split message into data/signature		/*{{{*/
+bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
+      std::vector<std::string> * const ContentHeader, FileFd * const SignatureFile)
+{
+   FILE *in = fopen(InFile.c_str(), "r");
+   if (in == NULL)
+      return _error->Errno("fopen", "can not open %s", InFile.c_str());
+
+   bool found_message_start = false;
+   bool found_message_end = false;
+   bool skip_until_empty_line = false;
+   bool found_signature = false;
+   bool first_line = true;
+
+   char *buf = NULL;
+   size_t buf_size = 0;
+   ssize_t line_len = 0;
+   while ((line_len = getline(&buf, &buf_size, in)) != -1)
+   {
+      _strrstrip(buf);
+      if (found_message_start == false)
+      {
+	 if (strcmp(buf, "-----BEGIN PGP SIGNED MESSAGE-----") == 0)
+	 {
+	    found_message_start = true;
+	    skip_until_empty_line = true;
+	 }
+      }
+      else if (skip_until_empty_line == true)
+      {
+	 if (strlen(buf) == 0)
+	    skip_until_empty_line = false;
+	 // save "Hash" Armor Headers, others aren't allowed
+	 else if (ContentHeader != NULL && strncmp(buf, "Hash: ", strlen("Hash: ")) == 0)
+	    ContentHeader->push_back(buf);
+      }
+      else if (found_signature == false)
+      {
+	 if (strcmp(buf, "-----BEGIN PGP SIGNATURE-----") == 0)
+	 {
+	    found_signature = true;
+	    found_message_end = true;
+	    if (SignatureFile != NULL)
+	    {
+	       SignatureFile->Write(buf, strlen(buf));
+	       SignatureFile->Write("\n", 1);
+	    }
+	 }
+	 else if (found_message_end == false) // we are in the message block
+	 {
+	    // we don't have any fields which need dash-escaped,
+	    // but implementations are free to encode all lines …
+	    char const * dashfree = buf;
+	    if (strncmp(dashfree, "- ", 2) == 0)
+	       dashfree += 2;
+	    if(first_line == true) // first line does not need a newline
+	       first_line = false;
+	    else if (ContentFile != NULL)
+	       ContentFile->Write("\n", 1);
+	    else
+	       continue;
+	    if (ContentFile != NULL)
+	       ContentFile->Write(dashfree, strlen(dashfree));
+	 }
+      }
+      else if (found_signature == true)
+      {
+	 if (SignatureFile != NULL)
+	 {
+	    SignatureFile->Write(buf, strlen(buf));
+	    SignatureFile->Write("\n", 1);
+	 }
+	 if (strcmp(buf, "-----END PGP SIGNATURE-----") == 0)
+	    found_signature = false; // look for other signatures
+      }
+      // all the rest is whitespace, unsigned garbage or additional message blocks we ignore
+   }
+   fclose(in);
+
+   if (found_signature == true)
+      return _error->Error("Signature in file %s wasn't closed", InFile.c_str());
+
+   // if we haven't found any of them, this an unsigned file,
+   // so don't generate an error, but splitting was unsuccessful none-the-less
+   if (first_line == true && found_message_start == false && found_message_end == false)
+      return false;
+   // otherwise one missing indicates a syntax error
+   else if (first_line == false || found_message_start == false || found_message_end == false)
+      return _error->Error("Splitting of file %s failed as it doesn't contain all expected parts", InFile.c_str());
+
+   return true;
+}
+									/*}}}*/
+bool OpenMaybeClearSignedFile(std::string const &ClearSignedFileName, FileFd &MessageFile) /*{{{*/
+{
+   char * const message = GenerateTemporaryFileTemplate("fileutl.message");
+   int const messageFd = mkstemp(message);
+   if (messageFd == -1)
+   {
+      free(message);
+      return _error->Errno("mkstemp", "Couldn't create temporary file to work with %s", ClearSignedFileName.c_str());
+   }
+   // we have the fd, thats enough for us
+   unlink(message);
+   free(message);
+
+   MessageFile.OpenDescriptor(messageFd, FileFd::ReadWrite, true);
+   if (MessageFile.Failed() == true)
+      return _error->Error("Couldn't open temporary file to work with %s", ClearSignedFileName.c_str());
+
+   _error->PushToStack();
+   bool const splitDone = SplitClearSignedFile(ClearSignedFileName.c_str(), &MessageFile, NULL, NULL);
+   bool const errorDone = _error->PendingError();
+   _error->MergeWithStack();
+   if (splitDone == false)
+   {
+      MessageFile.Close();
+
+      if (errorDone == true)
+	 return false;
+
+      // we deal with an unsigned file
+      MessageFile.Open(ClearSignedFileName, FileFd::ReadOnly);
+   }
+   else // clear-signed
+   {
+      if (MessageFile.Seek(0) == false)
+	 return _error->Errno("lseek", "Unable to seek back in message for file %s", ClearSignedFileName.c_str());
+   }
+
+   return MessageFile.Failed() == false;
+}
+									/*}}}*/
diff --git a/apt-pkg/contrib/gpgv.h b/apt-pkg/contrib/gpgv.h
new file mode 100644
index 000000000..08b10a97a
--- /dev/null
+++ b/apt-pkg/contrib/gpgv.h
@@ -0,0 +1,82 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+
+   Helpers to deal with gpgv better and more easily
+
+   ##################################################################### */
+									/*}}}*/
+#ifndef CONTRIB_GPGV_H
+#define CONTRIB_GPGV_H
+
+#include <string>
+#include <vector>
+
+#include <apt-pkg/fileutl.h>
+
+#if __GNUC__ >= 4
+	#define APT_noreturn	__attribute__ ((noreturn))
+#else
+	#define APT_noreturn	/* no support */
+#endif
+
+/** \brief generates and run the command to verify a file with gpgv
+ *
+ * If File and FileSig specify the same file it is assumed that we
+ * deal with a clear-signed message. In that case the file will be
+ * rewritten to be in a good-known format without uneeded whitespaces
+ * and additional messages (unsigned or signed).
+ *
+ * @param File is the message (unsigned or clear-signed)
+ * @param FileSig is the signature (detached or clear-signed)
+ */
+void ExecGPGV(std::string const &File, std::string const &FileSig,
+      int const &statusfd, int fd[2]) APT_noreturn;
+inline void ExecGPGV(std::string const &File, std::string const &FileSig,
+      int const &statusfd = -1) {
+   int fd[2];
+   ExecGPGV(File, FileSig, statusfd, fd);
+};
+
+#undef APT_noreturn
+
+/** \brief Split an inline signature into message and signature
+ *
+ *  Takes a clear-signed message and puts the first signed message
+ *  in the content file and all signatures following it into the
+ *  second. Unsigned messages, additional messages as well as
+ *  whitespaces are discarded. The resulting files are suitable to
+ *  be checked with gpgv.
+ *
+ *  If a FileFd pointers is NULL it will not be used and the content
+ *  which would have been written to it is silently discarded.
+ *
+ *  The content of the split files is undefined if the splitting was
+ *  unsuccessful.
+ *
+ *  Note that trying to split an unsigned file will fail, but
+ *  not generate an error message.
+ *
+ *  @param InFile is the clear-signed file
+ *  @param ContentFile is the FileFd the message will be written to
+ *  @param ContentHeader is a list of all required Amored Headers for the message
+ *  @param SignatureFile is the FileFd all signatures will be written to
+ *  @return true if the splitting was successful, false otherwise
+ */
+bool SplitClearSignedFile(std::string const &InFile, FileFd * const ContentFile,
+      std::vector<std::string> * const ContentHeader, FileFd * const SignatureFile);
+
+/** \brief open a file which might be clear-signed
+ *
+ * This method tries to extract the (signed) message of a file.
+ * If the file isn't signed it will just open the given filename.
+ * Otherwise the message is extracted to a temporary file which
+ * will be opened instead.
+ *
+ * @param ClearSignedFileName is the name of the file to open
+ * @param[out] MessageFile is the FileFd in which the file will be opened
+ * @return true if opening was successful, otherwise false
+ */
+bool OpenMaybeClearSignedFile(std::string const &ClearSignedFileName, FileFd &MessageFile);
+
+#endif
diff --git a/apt-pkg/contrib/strutl.cc b/apt-pkg/contrib/strutl.cc
index ca096d736..9726138a0 100644
--- a/apt-pkg/contrib/strutl.cc
+++ b/apt-pkg/contrib/strutl.cc
@@ -117,7 +117,13 @@ char *_strstrip(char *String)
 
    if (*String == 0)
       return String;
-
+   return _strrstrip(String);
+}
+									/*}}}*/
+// strrstrip - Remove white space from the back of a string	/*{{{*/
+// ---------------------------------------------------------------------
+char *_strrstrip(char *String)
+{
    char *End = String + strlen(String) - 1;
    for (;End != String - 1 && (*End == ' ' || *End == '\t' || *End == '\n' ||
 			       *End == '\r'); End--);
diff --git a/apt-pkg/contrib/strutl.h b/apt-pkg/contrib/strutl.h
index 337139d5d..e92f91dc0 100644
--- a/apt-pkg/contrib/strutl.h
+++ b/apt-pkg/contrib/strutl.h
@@ -35,6 +35,7 @@ using std::ostream;
 
 bool UTF8ToCodeset(const char *codeset, const std::string &orig, std::string *dest);
 char *_strstrip(char *String);
+char *_strrstrip(char *String); // right strip only
 char *_strtabexpand(char *String,size_t Len);
 bool ParseQuoteWord(const char *&String,std::string &Res);
 bool ParseCWord(const char *&String,std::string &Res);
diff --git a/apt-pkg/deb/debindexfile.cc b/apt-pkg/deb/debindexfile.cc
index de645bb6e..909dfcf47 100644
--- a/apt-pkg/deb/debindexfile.cc
+++ b/apt-pkg/deb/debindexfile.cc
@@ -22,6 +22,7 @@
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/acquire-item.h>
 #include <apt-pkg/debmetaindex.h>
+#include <apt-pkg/gpgv.h>
 
 #include <sys/stat.h>
 									/*}}}*/
@@ -337,7 +338,12 @@ bool debPackagesIndex::Merge(pkgCacheGenerator &Gen,OpProgress *Prog) const
 
    if (releaseExists == true || FileExists(ReleaseFile) == true)
    {
-      FileFd Rel(ReleaseFile,FileFd::ReadOnly);
+      FileFd Rel;
+      // Beware: The 'Release' file might be clearsigned in case the
+      // signature for an 'InRelease' file couldn't be checked
+      if (OpenMaybeClearSignedFile(ReleaseFile, Rel) == false)
+	 return false;
+
       if (_error->PendingError() == true)
 	 return false;
       Parser.LoadReleaseInfo(File,Rel,Section);
diff --git a/apt-pkg/deb/deblistparser.cc b/apt-pkg/deb/deblistparser.cc
index 56d5297fc..d84a6a26d 100644
--- a/apt-pkg/deb/deblistparser.cc
+++ b/apt-pkg/deb/deblistparser.cc
@@ -801,13 +801,12 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,
    map_ptrloc const storage = WriteUniqString(component);
    FileI->Component = storage;
 
-   // FIXME: Code depends on the fact that Release files aren't compressed
+   // FIXME: should use FileFd and TagSection
    FILE* release = fdopen(dup(File.Fd()), "r");
    if (release == NULL)
       return false;
 
    char buffer[101];
-   bool gpgClose = false;
    while (fgets(buffer, sizeof(buffer), release) != NULL)
    {
       size_t len = 0;
@@ -819,15 +818,6 @@ bool debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,
       if (buffer[len] == '\0')
 	 continue;
 
-      // only evalute the first GPG section
-      if (strncmp("-----", buffer, 5) == 0)
-      {
-	 if (gpgClose == true)
-	    break;
-	 gpgClose = true;
-	 continue;
-      }
-
       // seperate the tag from the data
       const char* dataStart = strchr(buffer + len, ':');
       if (dataStart == NULL)
diff --git a/apt-pkg/deb/debmetaindex.cc b/apt-pkg/deb/debmetaindex.cc
index 6c191fd95..7a88d71e3 100644
--- a/apt-pkg/deb/debmetaindex.cc
+++ b/apt-pkg/deb/debmetaindex.cc
@@ -229,6 +229,8 @@ vector <struct IndexTarget *>* debReleaseIndex::ComputeIndexTargets() const {
 									/*}}}*/
 bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool const &GetAll) const
 {
+   bool const tryInRelease = _config->FindB("Acquire::TryInRelease", true);
+
    // special case for --print-uris
    if (GetAll) {
       vector <struct IndexTarget *> *targets = ComputeIndexTargets();
@@ -239,18 +241,27 @@ bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool const &GetAll) const
 
       // this is normally created in pkgAcqMetaSig, but if we run
       // in --print-uris mode, we add it here
-      new pkgAcqMetaIndex(Owner, MetaIndexURI("Release"),
-			  MetaIndexInfo("Release"), "Release",
-			  MetaIndexURI("Release.gpg"),
-			  ComputeIndexTargets(),
-			  new indexRecords (Dist));
+      if (tryInRelease == false)
+	 new pkgAcqMetaIndex(Owner, MetaIndexURI("Release"),
+	       MetaIndexInfo("Release"), "Release",
+	       MetaIndexURI("Release.gpg"),
+	       ComputeIndexTargets(),
+	       new indexRecords (Dist));
    }
 
-   new pkgAcqMetaSig(Owner, MetaIndexURI("Release.gpg"),
-		     MetaIndexInfo("Release.gpg"), "Release.gpg",
-		     MetaIndexURI("Release"), MetaIndexInfo("Release"), "Release",
-		     ComputeIndexTargets(),
-		     new indexRecords (Dist));
+   if (tryInRelease == true)
+      new pkgAcqMetaClearSig(Owner, MetaIndexURI("InRelease"),
+	    MetaIndexInfo("InRelease"), "InRelease",
+	    MetaIndexURI("Release"), MetaIndexInfo("Release"), "Release",
+	    MetaIndexURI("Release.gpg"), MetaIndexInfo("Release.gpg"), "Release.gpg",
+	    ComputeIndexTargets(),
+	    new indexRecords (Dist));
+   else
+      new pkgAcqMetaSig(Owner, MetaIndexURI("Release.gpg"),
+	    MetaIndexInfo("Release.gpg"), "Release.gpg",
+	    MetaIndexURI("Release"), MetaIndexInfo("Release"), "Release",
+	    ComputeIndexTargets(),
+	    new indexRecords (Dist));
 
    return true;
 }
diff --git a/apt-pkg/indexcopy.cc b/apt-pkg/indexcopy.cc
index aa1f01a4a..f53989bdb 100644
--- a/apt-pkg/indexcopy.cc
+++ b/apt-pkg/indexcopy.cc
@@ -593,9 +593,9 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
       if(pid == 0)
       {
 	 if (useInRelease == true)
-	    RunGPGV(inrelease, inrelease);
+	    ExecGPGV(inrelease, inrelease);
 	 else
-	    RunGPGV(release, releasegpg);
+	    ExecGPGV(release, releasegpg);
       }
 
       if(!ExecWait(pid, "gpgv")) {
@@ -642,124 +642,6 @@ bool SigVerify::CopyAndVerify(string CDROM,string Name,vector<string> &SigList,
    return true;
 }
 									/*}}}*/
-// SigVerify::RunGPGV - returns the command needed for verify		/*{{{*/
-// ---------------------------------------------------------------------
-/* Generating the commandline for calling gpgv is somehow complicated as
-   we need to add multiple keyrings and user supplied options. Also, as
-   the cdrom code currently can not use the gpgv method we have two places
-   these need to be done - so the place for this method is wrong but better
-   than code duplication… */
-bool SigVerify::RunGPGV(std::string const &File, std::string const &FileGPG,
-			int const &statusfd, int fd[2])
-{
-   if (File == FileGPG)
-   {
-      #define SIGMSG "-----BEGIN PGP SIGNED MESSAGE-----\n"
-      char buffer[sizeof(SIGMSG)];
-      FILE* gpg = fopen(File.c_str(), "r");
-      if (gpg == NULL)
-	 return _error->Errno("RunGPGV", _("Could not open file %s"), File.c_str());
-      char const * const test = fgets(buffer, sizeof(buffer), gpg);
-      fclose(gpg);
-      if (test == NULL || strcmp(buffer, SIGMSG) != 0)
-	 return _error->Error(_("File %s doesn't start with a clearsigned message"), File.c_str());
-      #undef SIGMSG
-   }
-
-
-   string const gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
-   // FIXME: remove support for deprecated APT::GPGV setting
-   string const trustedFile = _config->Find("APT::GPGV::TrustedKeyring", _config->FindFile("Dir::Etc::Trusted"));
-   string const trustedPath = _config->FindDir("Dir::Etc::TrustedParts");
-
-   bool const Debug = _config->FindB("Debug::Acquire::gpgv", false);
-
-   if (Debug == true)
-   {
-      std::clog << "gpgv path: " << gpgvpath << std::endl;
-      std::clog << "Keyring file: " << trustedFile << std::endl;
-      std::clog << "Keyring path: " << trustedPath << std::endl;
-   }
-
-   std::vector<string> keyrings;
-   if (DirectoryExists(trustedPath))
-     keyrings = GetListOfFilesInDir(trustedPath, "gpg", false, true);
-   if (RealFileExists(trustedFile) == true)
-     keyrings.push_back(trustedFile);
-
-   std::vector<const char *> Args;
-   Args.reserve(30);
-
-   if (keyrings.empty() == true)
-   {
-      // TRANSLATOR: %s is the trusted keyring parts directory
-      return _error->Error(_("No keyring installed in %s."),
-			   _config->FindDir("Dir::Etc::TrustedParts").c_str());
-   }
-
-   Args.push_back(gpgvpath.c_str());
-   Args.push_back("--ignore-time-conflict");
-
-   if (statusfd != -1)
-   {
-      Args.push_back("--status-fd");
-      char fd[10];
-      snprintf(fd, sizeof(fd), "%i", statusfd);
-      Args.push_back(fd);
-   }
-
-   for (vector<string>::const_iterator K = keyrings.begin();
-	K != keyrings.end(); ++K)
-   {
-      Args.push_back("--keyring");
-      Args.push_back(K->c_str());
-   }
-
-   Configuration::Item const *Opts;
-   Opts = _config->Tree("Acquire::gpgv::Options");
-   if (Opts != 0)
-   {
-      Opts = Opts->Child;
-      for (; Opts != 0; Opts = Opts->Next)
-      {
-	 if (Opts->Value.empty() == true)
-	    continue;
-	 Args.push_back(Opts->Value.c_str());
-      }
-   }
-
-   Args.push_back(FileGPG.c_str());
-   if (FileGPG != File)
-      Args.push_back(File.c_str());
-   Args.push_back(NULL);
-
-   if (Debug == true)
-   {
-      std::clog << "Preparing to exec: " << gpgvpath;
-      for (std::vector<const char *>::const_iterator a = Args.begin(); *a != NULL; ++a)
-	 std::clog << " " << *a;
-      std::clog << std::endl;
-   }
-
-   if (statusfd != -1)
-   {
-      int const nullfd = open("/dev/null", O_RDONLY);
-      close(fd[0]);
-      // Redirect output to /dev/null; we read from the status fd
-      dup2(nullfd, STDOUT_FILENO);
-      dup2(nullfd, STDERR_FILENO);
-      // Redirect the pipe to the status fd (3)
-      dup2(fd[1], statusfd);
-
-      putenv((char *)"LANG=");
-      putenv((char *)"LC_ALL=");
-      putenv((char *)"LC_MESSAGES=");
-   }
-
-   execvp(gpgvpath.c_str(), (char **) &Args[0]);
-   return true;
-}
-									/*}}}*/
 bool TranslationsCopy::CopyTranslations(string CDROM,string Name,	/*{{{*/
 				vector<string> &List, pkgCdromStatus *log)
 {
diff --git a/apt-pkg/indexcopy.h b/apt-pkg/indexcopy.h
index e3de1afd9..aa221158e 100644
--- a/apt-pkg/indexcopy.h
+++ b/apt-pkg/indexcopy.h
@@ -14,6 +14,9 @@
 #include <string>
 #include <stdio.h>
 
+#include <apt-pkg/gpgv.h>
+#include <apt-pkg/macros.h>
+
 #ifndef APT_8_CLEANER_HEADERS
 using std::string;
 using std::vector;
@@ -96,13 +99,15 @@ class SigVerify								/*{{{*/
    bool CopyAndVerify(std::string CDROM,std::string Name,std::vector<std::string> &SigList,
 		      std::vector<std::string> PkgList,std::vector<std::string> SrcList);
 
-   /** \brief generates and run the command to verify a file with gpgv */
-   static bool RunGPGV(std::string const &File, std::string const &FileOut,
-		       int const &statusfd, int fd[2]);
-   inline static bool RunGPGV(std::string const &File, std::string const &FileOut,
+   __deprecated static bool RunGPGV(std::string const &File, std::string const &FileOut,
+		       int const &statusfd, int fd[2]) {
+      ExecGPGV(File, FileOut, statusfd, fd);
+      return false;
+   };
+   __deprecated static bool RunGPGV(std::string const &File, std::string const &FileOut,
 			      int const &statusfd = -1) {
-      int fd[2];
-      return RunGPGV(File, FileOut, statusfd, fd);
+      ExecGPGV(File, FileOut, statusfd);
+      return false;
    };
 };
 									/*}}}*/
diff --git a/apt-pkg/indexrecords.cc b/apt-pkg/indexrecords.cc
index 649b6059d..e37a78cfb 100644
--- a/apt-pkg/indexrecords.cc
+++ b/apt-pkg/indexrecords.cc
@@ -12,6 +12,7 @@
 #include <apt-pkg/configuration.h>
 #include <apt-pkg/fileutl.h>
 #include <apt-pkg/hashes.h>
+#include <apt-pkg/gpgv.h>
 
 #include <sys/stat.h>
 #include <clocale>
@@ -57,7 +58,10 @@ bool indexRecords::Exists(string const &MetaKey) const
 
 bool indexRecords::Load(const string Filename)				/*{{{*/
 {
-   FileFd Fd(Filename, FileFd::ReadOnly);
+   FileFd Fd;
+   if (OpenMaybeClearSignedFile(Filename, Fd) == false)
+      return false;
+
    pkgTagFile TagFile(&Fd, Fd.Size() + 256); // XXX
    if (_error->PendingError() == true)
    {
diff --git a/apt-pkg/makefile b/apt-pkg/makefile
index 27d7ead24..59729faf5 100644
--- a/apt-pkg/makefile
+++ b/apt-pkg/makefile
@@ -27,15 +27,13 @@ APT_DOMAIN:=libapt-pkg$(LIBAPTPKG_MAJOR)
 SOURCE = contrib/mmap.cc contrib/error.cc contrib/strutl.cc \
          contrib/configuration.cc contrib/progress.cc contrib/cmndline.cc \
 	 contrib/hashsum.cc contrib/md5.cc contrib/sha1.cc \
-	 contrib/sha2_internal.cc\
-         contrib/hashes.cc \
+	 contrib/sha2_internal.cc contrib/hashes.cc \
 	 contrib/cdromutl.cc contrib/crc-16.cc contrib/netrc.cc \
-	 contrib/fileutl.cc 
-HEADERS = mmap.h error.h configuration.h fileutl.h  cmndline.h netrc.h\
-	  md5.h crc-16.h cdromutl.h strutl.h sptr.h sha1.h sha2.h sha256.h\
-	  sha2_internal.h \
-          hashes.h hashsum_template.h\
-	  macros.h weakptr.h
+	 contrib/fileutl.cc contrib/gpgv.cc
+HEADERS = mmap.h error.h configuration.h fileutl.h cmndline.h netrc.h \
+	  md5.h crc-16.h cdromutl.h strutl.h sptr.h sha1.h sha2.h sha256.h \
+	  sha2_internal.h hashes.h hashsum_template.h \
+	  macros.h weakptr.h gpgv.h
 
 # Source code for the core main library
 SOURCE+= pkgcache.cc version.cc depcache.cc \