fix from David Kalnischkies for the InRelease gpg verification

[apt.git] / methods / gpgv.cc

diff --git a/methods/gpgv.cc b/methods/gpgv.cc
index a149d67ddae8a3450042f2a1551f65b32c946d1e..960c06180eede581bdb1ebb0ef687189929ba4b3 100644 (file)
--- a/methods/gpgv.cc
+++ b/methods/gpgv.cc
@@ -2,6 +2,7 @@
 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/fileutl.h>
+#include <apt-pkg/indexcopy.h>
 #include <apti18n.h>
 
 #include <utime.h>
@@ -54,97 +55,32 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
    if (Debug == true)
       std::clog << "inside VerifyGetSigners" << std::endl;
 
-   pid_t pid;
    int fd[2];
-   FILE *pipein;
-   int status;
-   string const gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
-   // FIXME: remove support for deprecated APT::GPGV setting
-   string const trustedFile = _config->FindFile("Dir::Etc::Trusted",
-                       _config->Find("APT::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg").c_str());
-   string const trustedPath = _config->FindDir("Dir::Etc::TrustedParts", "/etc/apt/trusted.gpg.d");
-   if (Debug == true)
-   {
-      std::clog << "gpgv path: " << gpgvpath << std::endl;
-      std::clog << "Keyring file: " << trustedFile << std::endl;
-      std::clog << "Keyring path: " << trustedPath << std::endl;
-   }
-
-   vector<string> keyrings = GetListOfFilesInDir(trustedPath, "gpg", false);
-   if (FileExists(trustedFile) == true)
-      keyrings.push_back(trustedFile);
-
-   if (keyrings.empty() == true)
-   {
-      // TRANSLATOR: %s is the trusted keyring parts directory
-      ioprintf(ret, _("No keyring installed in %s."), trustedPath.c_str());
-      return ret.str();
-   }
 
    if (pipe(fd) < 0)
       return "Couldn't create pipe";
 
-   pid = fork();
+   pid_t pid = fork();
    if (pid < 0)
       return string("Couldn't spawn new process") + strerror(errno);
    else if (pid == 0)
    {
-      std::vector<const char *> Args;
-      Args.reserve(30);
-
-      Args.push_back(gpgvpath.c_str());
-      Args.push_back("--status-fd");
-      Args.push_back("3");
-      Args.push_back("--ignore-time-conflict");
-      for (vector<string>::const_iterator K = keyrings.begin();
-          K != keyrings.end(); ++K)
+      _error->PushToStack();
+      bool const success = SigVerify::RunGPGV(outfile, file, 3, fd);
+      if (success == false)
       {
-        Args.push_back("--keyring");
-        Args.push_back(K->c_str());
+        string errmsg;
+        _error->PopMessage(errmsg);
+        _error->RevertToStack();
+        return errmsg;
       }
-
-      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(file);
-      Args.push_back(outfile);
-      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;
-      }
-      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], 3);
-
-      putenv((char *)"LANG=");
-      putenv((char *)"LC_ALL=");
-      putenv((char *)"LC_MESSAGES=");
-      execvp(gpgvpath.c_str(), (char **) &Args[0]);
-             
+      _error->RevertToStack();
       exit(111);
    }
    close(fd[1]);
 
-   pipein = fdopen(fd[0], "r"); 
-   
+   FILE *pipein = fdopen(fd[0], "r");
+
    // Loop over the output of gpgv, and check the signatures.
    size_t buffersize = 64;
    char *buffer = (char *) malloc(buffersize);
@@ -217,6 +153,7 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
    }
    fclose(pipein);
 
+   int status;
    waitpid(pid, &status, 0);
    if (Debug == true)
    {
@@ -235,7 +172,7 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
    }
    else if (WEXITSTATUS(status) == 111)
    {
-      ioprintf(ret, _("Could not execute '%s' to verify signature (is gpgv installed?)"), gpgvpath.c_str());
+      ioprintf(ret, _("Could not execute 'gpgv' to verify signature (is gpgv installed?)"));
       return ret.str();
    }
    else