-#include <apt-pkg/error.h>
+#include <config.h>
+
#include <apt-pkg/acquire-method.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/gpgv.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/fileutl.h>
-#include <apti18n.h>
-#include <utime.h>
-#include <stdio.h>
-#include <fcntl.h>
+#include <ctype.h>
#include <errno.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include <sys/wait.h>
+#include <unistd.h>
#include <iostream>
-#include <sstream>
+#include <string>
+#include <vector>
+
+#include <apti18n.h>
+
+using std::string;
+using std::vector;
#define GNUPGPREFIX "[GNUPG:]"
#define GNUPGBADSIG "[GNUPG:] BADSIG"
protected:
virtual bool Fetch(FetchItem *Itm);
-
+ virtual bool Configuration(string Message);
public:
GPGVMethod() : pkgAcqMethod("1.0",SingleInstance | SendConfig) {};
};
+bool GPGVMethod::Configuration(string Message)
+{
+ if (pkgAcqMethod::Configuration(Message) == false)
+ return false;
+
+ DropPrivsOrDie();
+
+ return true;
+}
+
string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
vector<string> &GoodSigners,
vector<string> &BadSigners,
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("");
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)
- {
- const char *Args[400];
- unsigned int i = 0;
-
- Args[i++] = gpgvpath.c_str();
- Args[i++] = "--status-fd";
- Args[i++] = "3";
- Args[i++] = "--ignore-time-conflict";
- 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");
- if (Opts != 0)
- {
- Opts = Opts->Child;
- for (; Opts != 0; Opts = Opts->Next)
- {
- if (Opts->Value.empty() == true)
- continue;
- Args[i++] = Opts->Value.c_str();
- // 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);
- }
- }
- }
- Args[i++] = file;
- Args[i++] = outfile;
- Args[i++] = NULL;
-
- if (Debug == true)
- {
- std::clog << "Preparing to exec: " << gpgvpath;
- for(unsigned int j=0;Args[j] != NULL; j++)
- std::clog << " " << Args[j];
- 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);
-
- exit(111);
- }
+ ExecGPGV(outfile, file, 3, fd);
close(fd[1]);
- pipein = fdopen(fd[0], "r");
-
- // Loop over the output of gpgv, and check the signatures.
+ FILE *pipein = fdopen(fd[0], "r");
+
+ // Loop over the output of apt-key (which really is gnupg), and check the signatures.
size_t buffersize = 64;
char *buffer = (char *) malloc(buffersize);
size_t bufferoff = 0;
// Read a line. Sigh.
while ((c = getc(pipein)) != EOF && c != '\n')
{
- if (bufferoff == buffersize)
- buffer = (char *) realloc(buffer, buffersize *= 2);
+ if (bufferoff == buffersize)
+ {
+ char* newBuffer = (char *) realloc(buffer, buffersize *= 2);
+ if (newBuffer == NULL)
+ {
+ free(buffer);
+ return "Couldn't allocate a buffer big enough for reading";
+ }
+ buffer = newBuffer;
+ }
*(buffer+bufferoff) = c;
bufferoff++;
}
}
}
fclose(pipein);
+ free(buffer);
+ int status;
waitpid(pid, &status, 0);
if (Debug == true)
{
- std::clog << "gpgv exited\n";
+ ioprintf(std::clog, "gpgv exited with status %i\n", WEXITSTATUS(status));
}
if (WEXITSTATUS(status) == 0)
return "";
}
else if (WEXITSTATUS(status) == 1)
- {
return _("At least one invalid signature was encountered.");
- }
else if (WEXITSTATUS(status) == 111)
+ return _("Could not execute 'apt-key' to verify signature (is gnupg installed?)");
+ else if (WEXITSTATUS(status) == 112)
{
- ioprintf(ret, _("Could not execute '%s' to verify signature (is gpgv installed?)"), gpgvpath.c_str());
- return ret.str();
+ // acquire system checks for "NODATA" to generate GPG errors (the others are only warnings)
+ std::string errmsg;
+ //TRANSLATORS: %s is a single techy word like 'NODATA'
+ strprintf(errmsg, _("Clearsigned file isn't valid, got '%s' (does the network require authentication?)"), "NODATA");
+ return errmsg;
}
else
- {
- return _("Unknown error executing gpgv");
- }
+ return _("Unknown error executing apt-key");
}
bool GPGVMethod::Fetch(FetchItem *Itm)
Res.Filename = Itm->DestFile;
URIStart(Res);
- // Run gpgv on file, extract contents and get the key ID of the signer
+ // Run apt-key on file, extract contents and get the key ID of the signer
string msg = VerifyGetSigners(Path.c_str(), Itm->DestFile.c_str(),
GoodSigners, BadSigners, WorthlessSigners,
NoPubKeySigners);
{
errmsg += _("The following signatures were invalid:\n");
for (vector<string>::iterator I = BadSigners.begin();
- I != BadSigners.end(); I++)
+ 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++)
+ 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");
for (vector<string>::iterator I = NoPubKeySigners.begin();
- I != NoPubKeySigners.end(); I++)
+ I != NoPubKeySigners.end(); ++I)
errmsg += (*I + "\n");
}
}
if (_config->FindB("Debug::Acquire::gpgv", false))
{
- std::clog << "gpgv succeeded\n";
+ std::clog << "apt-key succeeded\n";
}
return true;
int main()
{
setlocale(LC_ALL, "");
-
+
GPGVMethod Mth;
return Mth.Run();
projects / apt.git / blobdiff