merged from lp:~mvo/apt/mvo

[apt.git] / methods / gpgv.cc

diff --git a/methods/gpgv.cc b/methods/gpgv.cc
index ba7389cbaef5a6188cfff4f48bc32ceee12ec50a..150c1d315ebe33ee530150a20e8a72c1c6b2bf16 100644 (file)
--- a/methods/gpgv.cc
+++ b/methods/gpgv.cc
@@ -17,12 +17,18 @@
 #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,
-                               vector<string> &GoodSigners, vector<string> &BadSigners,
+                               vector<string> &GoodSigners, 
+                                vector<string> &BadSigners,
+                                vector<string> &WorthlessSigners,
                                vector<string> &NoPubKeySigners);
    
    protected:
@@ -36,6 +42,7 @@ class GPGVMethod : public pkgAcqMethod
 string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
                                         vector<string> &GoodSigners,
                                         vector<string> &BadSigners,
+                                        vector<string> &WorthlessSigners,
                                         vector<string> &NoPubKeySigners)
 {
    // setup a (empty) stringstream for formating the return value
@@ -82,6 +89,7 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
       Args[i++] = gpgvpath.c_str();
       Args[i++] = "--status-fd";
       Args[i++] = "3";
+      Args[i++] = "--ignore-time-conflict";
       Args[i++] = "--keyring";
       Args[i++] = pubringpath.c_str();
 
@@ -120,9 +128,9 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
       // Redirect the pipe to the status fd (3)
       dup2(fd[1], 3);
 
-      putenv("LANG=");
-      putenv("LC_ALL=");
-      putenv("LC_MESSAGES=");
+      putenv((char *)"LANG=");
+      putenv((char *)"LC_ALL=");
+      putenv((char *)"LC_MESSAGES=");
       execvp(gpgvpath.c_str(), (char **)Args);
              
       exit(111);
@@ -171,16 +179,33 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
             std::cerr << "Got NO_PUBKEY " << std::endl;
          NoPubKeySigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
       }
-
-      if (strncmp(buffer, GNUPGVALIDSIG, sizeof(GNUPGVALIDSIG)-1) == 0)
+      if (strncmp(buffer, GNUPGNODATA, sizeof(GNUPGBADSIG)-1) == 0)
+      {
+         if (_config->FindB("Debug::Acquire::gpgv", false))
+            std::cerr << "Got NODATA! " << std::endl;
+         BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
+      }
+      if (strncmp(buffer, GNUPGKEYEXPIRED, sizeof(GNUPGKEYEXPIRED)-1) == 0)
+      {
+         if (_config->FindB("Debug::Acquire::gpgv", false))
+            std::cerr << "Got KEYEXPIRED! " << std::endl;
+         WorthlessSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
+      }
+      if (strncmp(buffer, GNUPGREVKEYSIG, sizeof(GNUPGREVKEYSIG)-1) == 0)
+      {
+         if (_config->FindB("Debug::Acquire::gpgv", false))
+            std::cerr << "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 *p = sig + sizeof("VALIDSIG");
+         char *p = sig + sizeof("GOODSIG");
          while (*p && isxdigit(*p)) 
             p++;
          *p = 0;
          if (_config->FindB("Debug::Acquire::gpgv", false))
-            std::cerr << "Got VALIDSIG, key ID:" << sig << std::endl;
+            std::cerr << "Got GOODSIG, key ID:" << sig << std::endl;
          GoodSigners.push_back(string(sig));
       }
    }
@@ -204,7 +229,7 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
    }
    else if (WEXITSTATUS(status) == 111)
    {
-      ioprintf(ret, _("Could not execute '%s' to verify signature (is gnupg installed?)"), gpgvpath.c_str());
+      ioprintf(ret, _("Could not execute '%s' to verify signature (is gpgv installed?)"), gpgvpath.c_str());
       return ret.str();
    }
    else
@@ -220,6 +245,8 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
    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;
@@ -228,13 +255,14 @@ 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(),
-                             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 (BadSigners.empty() && NoPubKeySigners.empty())
+      if (BadSigners.empty() && WorthlessSigners.empty() && NoPubKeySigners.empty())
          errmsg = msg;
       else
       {
@@ -245,6 +273,13 @@ bool GPGVMethod::Fetch(FetchItem *Itm)
                 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");
@@ -257,26 +292,9 @@ 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())
-        return _error->Error(errmsg.c_str());
+        return _error->Error("%s", errmsg.c_str());
    }
       
-   // Transfer the modification times
-   struct stat Buf;
-   if (stat(Path.c_str(),&Buf) != 0)
-      return _error->Errno("stat",_("Failed to stat %s"), Path.c_str());
-
-   struct utimbuf TimeBuf;
-   TimeBuf.actime = Buf.st_atime;
-   TimeBuf.modtime = Buf.st_mtime;
-   if (utime(Itm->DestFile.c_str(),&TimeBuf) != 0)
-      return _error->Errno("utime",_("Failed to set modification time"));
-
-   if (stat(Itm->DestFile.c_str(),&Buf) != 0)
-      return _error->Errno("stat",_("Failed to stat"));
-   
-   // Return a Done response
-   Res.LastModified = Buf.st_mtime;
-   Res.Size = Buf.st_size;
    // Just pass the raw output up, because passing it as a real data
    // structure is too difficult with the method stuff.  We keep it
    // as three separate vectors for future extensibility.