merged from the debian-sid branch

[apt.git] / methods / gpgv.cc

diff --git a/methods/gpgv.cc b/methods/gpgv.cc
index 1ed26a30a1ac3da595f7cb00c557925839fa018d..c58e6cc45781253b1d53b4b2e63007e66e6bfd07 100644 (file)
--- a/methods/gpgv.cc
+++ b/methods/gpgv.cc
@@ -1,10 +1,9 @@
 #include <apt-pkg/error.h>
 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/strutl.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/acquire-method.h>
 #include <apt-pkg/strutl.h>

+#include <apt-pkg/fileutl.h>

 #include <apti18n.h>
 
 #include <apti18n.h>
 

-#include <sys/stat.h>
-#include <unistd.h>

 #include <utime.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <utime.h>
 #include <stdio.h>
 #include <fcntl.h>


@@ -17,13 +16,18 @@
 #define GNUPGBADSIG "[GNUPG:] BADSIG"
 #define GNUPGNOPUBKEY "[GNUPG:] NO_PUBKEY"
 #define GNUPGVALIDSIG "[GNUPG:] VALIDSIG"
 #define GNUPGBADSIG "[GNUPG:] BADSIG"
 #define GNUPGNOPUBKEY "[GNUPG:] NO_PUBKEY"
 #define GNUPGVALIDSIG "[GNUPG:] VALIDSIG"

+#define GNUPGGOODSIG "[GNUPG:] GOODSIG"
+#define GNUPGKEYEXPIRED "[GNUPG:] KEYEXPIRED"
+#define GNUPGREVKEYSIG "[GNUPG:] REVKEYSIG"

 #define GNUPGNODATA "[GNUPG:] NODATA"
 
 class GPGVMethod : public pkgAcqMethod
 {
    private:
    string VerifyGetSigners(const char *file, const char *outfile,
 #define GNUPGNODATA "[GNUPG:] NODATA"
 
 class GPGVMethod : public pkgAcqMethod
 {
    private:
    string VerifyGetSigners(const char *file, const char *outfile,

-                               vector<string> &GoodSigners, vector<string> &BadSigners,
+                               vector<string> &GoodSigners, 
+                                vector<string> &BadSigners,
+                                vector<string> &WorthlessSigners,

                                vector<string> &NoPubKeySigners);
    
    protected:
                                vector<string> &NoPubKeySigners);
    
    protected:


@@ -37,44 +41,50 @@ class GPGVMethod : public pkgAcqMethod
 string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
                                         vector<string> &GoodSigners,
                                         vector<string> &BadSigners,
 string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
                                         vector<string> &GoodSigners,
                                         vector<string> &BadSigners,

+                                        vector<string> &WorthlessSigners,

                                         vector<string> &NoPubKeySigners)
 {
                                         vector<string> &NoPubKeySigners)
 {

+   bool const Debug = _config->FindB("Debug::Acquire::gpgv", false);

    // setup a (empty) stringstream for formating the return value
    std::stringstream ret;
    ret.str("");
 
    // setup a (empty) stringstream for formating the return value
    std::stringstream ret;
    ret.str("");
 

-   if (_config->FindB("Debug::Acquire::gpgv", false))
-   {
-      std::cerr << "inside VerifyGetSigners" << std::endl;
-   }
+   if (Debug == true)
+      std::clog << "inside VerifyGetSigners" << std::endl;
+

    pid_t pid;
    int fd[2];
    FILE *pipein;
    int status;
    pid_t pid;
    int fd[2];
    FILE *pipein;
    int status;

-   struct stat buff;
-   string gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
-   string pubringpath = _config->Find("APT::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg");
-   if (_config->FindB("Debug::Acquire::gpgv", false))
+   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::cerr << "gpgv path: " << gpgvpath << std::endl;
-      std::cerr << "Keyring path: " << pubringpath << std::endl;
+      std::clog << "gpgv path: " << gpgvpath << std::endl;
+      std::clog << "Keyring file: " << trustedFile << std::endl;
+      std::clog << "Keyring path: " << trustedPath << std::endl;

    }
 
    }
 

-   if (stat(pubringpath.c_str(), &buff) != 0) 
+   vector<string> keyrings = GetListOfFilesInDir(trustedPath, "gpg", false);
+   if (FileExists(trustedFile) == true)
+      keyrings.push_back(trustedFile);
+
+   if (keyrings.empty() == true)

    {
    {

-      ioprintf(ret, _("Couldn't access keyring: '%s'"), strerror(errno)); 
+      // TRANSLATOR: %s is the trusted keyring parts directory
+      ioprintf(ret, _("No keyring installed in %s."), trustedPath.c_str());

       return ret.str();
    }
       return ret.str();
    }

+

    if (pipe(fd) < 0)
    if (pipe(fd) < 0)

-   {

       return "Couldn't create pipe";
       return "Couldn't create pipe";

-   }

 
    pid = fork();
    if (pid < 0)
 
    pid = fork();
    if (pid < 0)

-   {

       return string("Couldn't spawn new process") + strerror(errno);
       return string("Couldn't spawn new process") + strerror(errno);

-   }

    else if (pid == 0)
    {
       const char *Args[400];
    else if (pid == 0)
    {
       const char *Args[400];


@@ -84,8 +94,17 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
       Args[i++] = "--status-fd";
       Args[i++] = "3";
       Args[i++] = "--ignore-time-conflict";
       Args[i++] = "--status-fd";
       Args[i++] = "3";
       Args[i++] = "--ignore-time-conflict";

-      Args[i++] = "--keyring";
-      Args[i++] = pubringpath.c_str();
+      for (vector<string>::const_iterator K = keyrings.begin();
+          K != keyrings.end(); ++K)
+      {
+        Args[i++] = "--keyring";
+        Args[i++] = K->c_str();
+        // check overflow (minus a bit of extra space at the end)
+        if(i >= sizeof(Args)/sizeof(char*)-5) {
+           std::clog << _("E: Too many keyrings should be passed to gpgv. Exiting.") << std::endl;
+           exit(111);
+        }
+      }

 
       Configuration::Item const *Opts;
       Opts = _config->Tree("Acquire::gpgv::Options");
 
       Configuration::Item const *Opts;
       Opts = _config->Tree("Acquire::gpgv::Options");


@@ -97,8 +116,9 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
             if (Opts->Value.empty() == true)
                continue;
             Args[i++] = Opts->Value.c_str();
             if (Opts->Value.empty() == true)
                continue;
             Args[i++] = Opts->Value.c_str();

-           if(i >= 395) { 
-              std::cerr << _("E: Argument list from Acquire::gpgv::Options too long. Exiting.") << std::endl;
+           // check overflow (minus a bit of extra space at the end)
+           if(i >= sizeof(Args)/sizeof(char*)-5) { 
+              std::clog << _("E: Argument list from Acquire::gpgv::Options too long. Exiting.") << std::endl;

               exit(111);
            }
          }
               exit(111);
            }
          }


@@ -107,14 +127,14 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
       Args[i++] = outfile;
       Args[i++] = NULL;
 
       Args[i++] = outfile;
       Args[i++] = NULL;
 

-      if (_config->FindB("Debug::Acquire::gpgv", false))
+      if (Debug == true)

       {
       {

-         std::cerr << "Preparing to exec: " << gpgvpath;
+         std::clog << "Preparing to exec: " << gpgvpath;

         for(unsigned int j=0;Args[j] != NULL; j++)
         for(unsigned int j=0;Args[j] != NULL; j++)

-           std::cerr << " " << Args[j];
-        std::cerr << std::endl;
+           std::clog << " " << Args[j];
+        std::clog << std::endl;

       }
       }

-      int nullfd = open("/dev/null", O_RDONLY);
+      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); 
       close(fd[0]);
       // Redirect output to /dev/null; we read from the status fd
       dup2(nullfd, STDOUT_FILENO); 


@@ -153,8 +173,8 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
          break;
       *(buffer+bufferoff) = '\0';
       bufferoff = 0;
          break;
       *(buffer+bufferoff) = '\0';
       bufferoff = 0;

-      if (_config->FindB("Debug::Acquire::gpgv", false))
-         std::cerr << "Read: " << buffer << std::endl;
+      if (Debug == true)
+         std::clog << "Read: " << buffer << std::endl;

 
       // Push the data into three separate vectors, which
       // we later concatenate.  They're kept separate so
 
       // Push the data into three separate vectors, which
       // we later concatenate.  They're kept separate so


@@ -162,41 +182,53 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
       // it will be better.
       if (strncmp(buffer, GNUPGBADSIG, sizeof(GNUPGBADSIG)-1) == 0)
       {
       // it will be better.
       if (strncmp(buffer, GNUPGBADSIG, sizeof(GNUPGBADSIG)-1) == 0)
       {

-         if (_config->FindB("Debug::Acquire::gpgv", false))
-            std::cerr << "Got BADSIG! " << std::endl;
+         if (Debug == true)
+            std::clog << "Got BADSIG! " << std::endl;

          BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }
       
       if (strncmp(buffer, GNUPGNOPUBKEY, sizeof(GNUPGNOPUBKEY)-1) == 0)
       {
          BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }
       
       if (strncmp(buffer, GNUPGNOPUBKEY, sizeof(GNUPGNOPUBKEY)-1) == 0)
       {

-         if (_config->FindB("Debug::Acquire::gpgv", false))
-            std::cerr << "Got NO_PUBKEY " << std::endl;
+         if (Debug == true)
+            std::clog << "Got NO_PUBKEY " << std::endl;

          NoPubKeySigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }
       if (strncmp(buffer, GNUPGNODATA, sizeof(GNUPGBADSIG)-1) == 0)
       {
          NoPubKeySigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }
       if (strncmp(buffer, GNUPGNODATA, sizeof(GNUPGBADSIG)-1) == 0)
       {

-         if (_config->FindB("Debug::Acquire::gpgv", false))
-            std::cerr << "Got NODATA! " << std::endl;
+         if (Debug == true)
+            std::clog << "Got NODATA! " << std::endl;

          BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }
          BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }

-      if (strncmp(buffer, GNUPGVALIDSIG, sizeof(GNUPGVALIDSIG)-1) == 0)
+      if (strncmp(buffer, GNUPGKEYEXPIRED, sizeof(GNUPGKEYEXPIRED)-1) == 0)
+      {
+         if (Debug == true)
+            std::clog << "Got KEYEXPIRED! " << std::endl;
+         WorthlessSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
+      }
+      if (strncmp(buffer, GNUPGREVKEYSIG, sizeof(GNUPGREVKEYSIG)-1) == 0)
+      {
+         if (Debug == true)
+            std::clog << "Got REVKEYSIG! " << std::endl;
+         WorthlessSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
+      }
+      if (strncmp(buffer, GNUPGGOODSIG, sizeof(GNUPGGOODSIG)-1) == 0)

       {
          char *sig = buffer + sizeof(GNUPGPREFIX);
       {
          char *sig = buffer + sizeof(GNUPGPREFIX);

-         char *p = sig + sizeof("VALIDSIG");
+         char *p = sig + sizeof("GOODSIG");

          while (*p && isxdigit(*p)) 
             p++;
          *p = 0;
          while (*p && isxdigit(*p)) 
             p++;
          *p = 0;

-         if (_config->FindB("Debug::Acquire::gpgv", false))
-            std::cerr << "Got VALIDSIG, key ID:" << sig << std::endl;
+         if (Debug == true)
+            std::clog << "Got GOODSIG, key ID:" << sig << std::endl;

          GoodSigners.push_back(string(sig));
       }
    }
    fclose(pipein);
 
    waitpid(pid, &status, 0);
          GoodSigners.push_back(string(sig));
       }
    }
    fclose(pipein);
 
    waitpid(pid, &status, 0);

-   if (_config->FindB("Debug::Acquire::gpgv", false))
+   if (Debug == true)

    {
    {

-      std::cerr << "gpgv exited\n";
+      std::clog << "gpgv exited\n";

    }
    
    if (WEXITSTATUS(status) == 0)
    }
    
    if (WEXITSTATUS(status) == 0)


@@ -211,7 +243,7 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
    }
    else if (WEXITSTATUS(status) == 111)
    {
    }
    else if (WEXITSTATUS(status) == 111)
    {

-      ioprintf(ret, _("Could not execute '%s' to verify signature (is gnupg installed?)"), gpgvpath.c_str());
+      ioprintf(ret, _("Could not execute '%s' to verify signature (is gpgv installed?)"), gpgvpath.c_str());

       return ret.str();
    }
    else
       return ret.str();
    }
    else


@@ -227,6 +259,8 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
    string keyID;
    vector<string> GoodSigners;
    vector<string> BadSigners;
    string keyID;
    vector<string> GoodSigners;
    vector<string> BadSigners;

+   // a worthless signature is a expired or revoked one
+   vector<string> WorthlessSigners;

    vector<string> NoPubKeySigners;
    
    FetchResult Res;
    vector<string> NoPubKeySigners;
    
    FetchResult Res;


@@ -235,13 +269,14 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
 
    // Run gpgv on file, extract contents and get the key ID of the signer
    string msg = VerifyGetSigners(Path.c_str(), Itm->DestFile.c_str(),
 
    // Run gpgv on file, extract contents and get the key ID of the signer
    string msg = VerifyGetSigners(Path.c_str(), Itm->DestFile.c_str(),

-                             GoodSigners, BadSigners, NoPubKeySigners);
+                                 GoodSigners, BadSigners, WorthlessSigners,
+                                 NoPubKeySigners);

    if (GoodSigners.empty() || !BadSigners.empty() || !NoPubKeySigners.empty())
    {
       string errmsg;
       // In this case, something bad probably happened, so we just go
       // with what the other method gave us for an error message.
    if (GoodSigners.empty() || !BadSigners.empty() || !NoPubKeySigners.empty())
    {
       string errmsg;
       // In this case, something bad probably happened, so we just go
       // with what the other method gave us for an error message.

-      if (BadSigners.empty() && NoPubKeySigners.empty())
+      if (BadSigners.empty() && WorthlessSigners.empty() && NoPubKeySigners.empty())

          errmsg = msg;
       else
       {
          errmsg = msg;
       else
       {


@@ -252,6 +287,13 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
                 I != BadSigners.end(); I++)
                errmsg += (*I + "\n");
          }
                 I != BadSigners.end(); I++)
                errmsg += (*I + "\n");
          }

+         if (!WorthlessSigners.empty())
+         {
+            errmsg += _("The following signatures were invalid:\n");
+            for (vector<string>::iterator I = WorthlessSigners.begin();
+                I != WorthlessSigners.end(); I++)
+               errmsg += (*I + "\n");
+         }

          if (!NoPubKeySigners.empty())
          {
              errmsg += _("The following signatures couldn't be verified because the public key is not available:\n");
          if (!NoPubKeySigners.empty())
          {
              errmsg += _("The following signatures couldn't be verified because the public key is not available:\n");


@@ -264,7 +306,7 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
       // least one bad signature. good signatures and NoPubKey signatures
       // happen easily when a file is signed with multiple signatures
       if(GoodSigners.empty() or !BadSigners.empty())
       // least one bad signature. good signatures and NoPubKey signatures
       // happen easily when a file is signed with multiple signatures
       if(GoodSigners.empty() or !BadSigners.empty())

-        return _error->Error(errmsg.c_str());
+        return _error->Error("%s", errmsg.c_str());

    }
       
    // Just pass the raw output up, because passing it as a real data
    }
       
    // Just pass the raw output up, because passing it as a real data


@@ -277,7 +319,7 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
 
    if (_config->FindB("Debug::Acquire::gpgv", false))
    {
 
    if (_config->FindB("Debug::Acquire::gpgv", false))
    {

-      std::cerr << "gpgv succeeded\n";
+      std::clog << "gpgv succeeded\n";

    }
 
    return true;
    }
 
    return true;