#include <sstream>
#include <unistd.h>
#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
#include <stdio.h>
/*}}}*/
// Open the package file
FileFd Pkg;
- if (FileExists(*I + GetFileName()) == true)
+ if (RealFileExists(*I + GetFileName()) == true)
{
Pkg.Open(*I + GetFileName(),FileFd::ReadOnly);
FileSize = Pkg.Size();
(*I).c_str() + CDROM.length(),GetFileName());
string TargetF = _config->FindDir("Dir::State::lists") + "partial/";
TargetF += URItoFileName(S);
+ FileFd Target;
if (_config->FindB("APT::CDROM::NoAct",false) == true)
+ {
TargetF = "/dev/null";
- FileFd Target(TargetF,FileFd::WriteEmpty);
+ Target.Open(TargetF,FileFd::WriteExists);
+ } else {
+ Target.Open(TargetF,FileFd::WriteAtomic);
+ }
FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
if (_error->PendingError() == true)
return false;
_error->Warning("No valid records were found.");
if (NotFound + WrongSize > 10)
- _error->Warning("Alot of entries were discarded, something may be wrong.\n");
+ _error->Warning("A lot of entries were discarded, something may be wrong.\n");
return true;
// we skip non-existing files in the verifcation to support a cdrom
// with no Packages file (just a Package.gz), see LP: #255545
// (non-existing files are not considered a error)
- if(!FileExists(prefix+file))
+ if(!RealFileExists(prefix+file))
{
_error->Warning(_("Skipping nonexistent file %s"), string(prefix+file).c_str());
return true;
FileFd Target;
FileFd Rel;
- Target.Open(TargetF,FileFd::WriteEmpty);
+ Target.Open(TargetF,FileFd::WriteAtomic);
Rel.Open(prefix + file,FileFd::ReadOnly);
if (_error->PendingError() == true)
return false;
indexRecords *MetaIndex = new indexRecords;
string prefix = *I;
+ string const releasegpg = *I+"Release.gpg";
+ string const release = *I+"Release";
+
// a Release.gpg without a Release should never happen
- if(!FileExists(*I+"Release"))
+ if(RealFileExists(release) == false)
{
delete MetaIndex;
continue;
}
-
- // verify the gpg signature of "Release"
- // gpg --verify "*I+Release.gpg", "*I+Release"
- const char *Args[400];
- unsigned int i = 0;
-
- string gpgvpath = _config->Find("Dir::Bin::gpg", "/usr/bin/gpgv");
- string pubringpath = _config->Find("Apt::GPGV::TrustedKeyring", "/etc/apt/trusted.gpg");
- string releasegpg = *I+"Release.gpg";
- string release = *I+"Release";
-
- Args[i++] = gpgvpath.c_str();
- Args[i++] = "--keyring";
- Args[i++] = pubringpath.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[i++] = Opts->Value.c_str();
- if(i >= 390) {
- _error->Error("Argument list from Acquire::gpgv::Options too long. Exiting.");
- return false;
- }
- }
- }
-
- Args[i++] = releasegpg.c_str();
- Args[i++] = release.c_str();
- Args[i++] = NULL;
-
pid_t pid = ExecFork();
if(pid < 0) {
_error->Error("Fork failed");
return false;
}
- if(pid == 0) {
- execvp(gpgvpath.c_str(), (char**)Args);
- }
+ if(pid == 0)
+ RunGPGV(release, releasegpg);
+
if(!ExecWait(pid, "gpgv")) {
_error->Warning("Signature verification failed for: %s",
- string(*I+"Release.gpg").c_str());
+ releasegpg.c_str());
// something went wrong, don't copy the Release.gpg
// FIXME: delete any existing gpg file?
continue;
}
// Open the Release file and add it to the MetaIndex
- if(!MetaIndex->Load(*I+"Release"))
+ if(!MetaIndex->Load(release))
{
_error->Error("%s",MetaIndex->ErrorText.c_str());
return false;
CopyMetaIndex(CDROM, Name, prefix, "Release.gpg");
}
+ 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;
}
/*}}}*/
// Open the package file
FileFd Pkg;
- if (FileExists(*I) == true)
+ if (RealFileExists(*I) == true)
{
Pkg.Open(*I,FileFd::ReadOnly);
FileSize = Pkg.Size();
TargetF += URItoFileName(S);
if (_config->FindB("APT::CDROM::NoAct",false) == true)
TargetF = "/dev/null";
- FileFd Target(TargetF,FileFd::WriteEmpty);
+ FileFd Target(TargetF,FileFd::WriteAtomic);
FILE *TargetFl = fdopen(dup(Target.Fd()),"w");
if (_error->PendingError() == true)
return false;
_error->Warning("No valid records were found.");
if (NotFound + WrongSize > 10)
- _error->Warning("Alot of entries were discarded, something may be wrong.\n");
+ _error->Warning("A lot of entries were discarded, something may be wrong.\n");
return true;
projects / apt.git / blobdiff