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authorDavid Kalnischkies <david@kalnischkies.de>2016-04-29 10:08:13 +0200
committerDavid Kalnischkies <david@kalnischkies.de>2016-05-01 10:50:24 +0200
commit5419a6ce20967902102358a07632ae3688788d62 (patch)
tree31410326b746c95cfbb2b035e37a9cf510d63deb
parentfb7b11ebb852fa255053ecab605bc9cfe9de0603 (diff)
gpgv: cleanup statusfd parsing a bit
We parse the messages we receive into two big categories: Most of the messages have a keyid as well as a userid and as they are errors we want to show the userids as well. The other category is also errors, but have no userid (like NO_PUBKEY). Explicitly expressing this in code should make it a bit easier to look at and it also help in dropping additional fields or just the newline at the end consistently. Git-Dch: Ignore
-rw-r--r--methods/gpgv.cc102
-rwxr-xr-xtest/integration/test-apt-update-ims2
2 files changed, 46 insertions, 58 deletions
diff --git a/methods/gpgv.cc b/methods/gpgv.cc
index 9099521bd..3e0b133a3 100644
--- a/methods/gpgv.cc
+++ b/methods/gpgv.cc
@@ -112,7 +112,34 @@ class GPGVMethod : public aptMethod
public:
GPGVMethod() : aptMethod("gpgv","1.0",SingleInstance | SendConfig) {};
};
-
+static void PushEntryWithKeyID(std::vector<std::string> &Signers, char * const buffer, bool const Debug)
+{
+ char * const msg = buffer + sizeof(GNUPGPREFIX);
+ char *p = msg;
+ // skip the message
+ while (*p && !isspace(*p))
+ ++p;
+ // skip the seperator whitespace
+ ++p;
+ // skip the hexdigit fingerprint
+ while (*p && isxdigit(*p))
+ ++p;
+ // cut the rest from the message
+ *p = '\0';
+ if (Debug == true)
+ std::clog << "Got " << msg << " !" << std::endl;
+ Signers.push_back(msg);
+}
+static void PushEntryWithUID(std::vector<std::string> &Signers, char * const buffer, bool const Debug)
+{
+ std::string msg = buffer + sizeof(GNUPGPREFIX);
+ auto const nuke = msg.find_last_not_of("\n\t\r");
+ if (nuke != std::string::npos)
+ msg.erase(nuke + 1);
+ if (Debug == true)
+ std::clog << "Got " << msg << " !" << std::endl;
+ Signers.push_back(msg);
+}
string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
std::string const &key,
vector<string> &GoodSigners,
@@ -158,86 +185,47 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
// if we improve the apt method communication stuff later
// it will be better.
if (strncmp(buffer, GNUPGBADSIG, sizeof(GNUPGBADSIG)-1) == 0)
- {
- if (Debug == true)
- std::clog << "Got BADSIG! " << std::endl;
- BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
- }
+ PushEntryWithUID(BadSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGERRSIG, sizeof(GNUPGERRSIG)-1) == 0)
- {
- if (Debug == true)
- std::clog << "Got ERRSIG " << std::endl;
- ErrSigners.push_back(string(buffer, strlen(GNUPGPREFIX), strlen("ERRSIG ") + 16));
- }
+ PushEntryWithKeyID(ErrSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGNOPUBKEY, sizeof(GNUPGNOPUBKEY)-1) == 0)
{
- if (Debug == true)
- std::clog << "Got NO_PUBKEY " << std::endl;
- NoPubKeySigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
+ PushEntryWithKeyID(NoPubKeySigners, buffer, Debug);
ErrSigners.erase(std::remove_if(ErrSigners.begin(), ErrSigners.end(), [&](std::string const &errsig) {
- return errsig.compare(strlen("ERRSIG "), 16, buffer, strlen(GNUPGNOPUBKEY), 16) == 0; }), ErrSigners.end());
+ return errsig.compare(strlen("ERRSIG "), 16, buffer, sizeof(GNUPGNOPUBKEY), 16) == 0; }), ErrSigners.end());
}
else if (strncmp(buffer, GNUPGNODATA, sizeof(GNUPGBADSIG)-1) == 0)
- {
- if (Debug == true)
- std::clog << "Got NODATA! " << std::endl;
- BadSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
- }
+ PushEntryWithUID(BadSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGEXPKEYSIG, sizeof(GNUPGEXPKEYSIG)-1) == 0)
- {
- if (Debug == true)
- std::clog << "Got EXPKEYSIG! " << std::endl;
- WorthlessSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
- }
+ PushEntryWithUID(WorthlessSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGEXPSIG, sizeof(GNUPGEXPSIG)-1) == 0)
- {
- if (Debug == true)
- std::clog << "Got EXPSIG!" << std::endl;
- WorthlessSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
- }
+ PushEntryWithUID(WorthlessSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGREVKEYSIG, sizeof(GNUPGREVKEYSIG)-1) == 0)
- {
- if (Debug == true)
- std::clog << "Got REVKEYSIG! " << std::endl;
- WorthlessSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
- }
+ PushEntryWithUID(WorthlessSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGGOODSIG, sizeof(GNUPGGOODSIG)-1) == 0)
- {
- char *sig = buffer + sizeof(GNUPGGOODSIG);
- char *p = sig;
- while (*p && isxdigit(*p))
- p++;
- *p = 0;
- if (Debug == true)
- std::clog << "Got GOODSIG, key ID: " << sig << std::endl;
- GoodSigners.push_back(string(buffer+sizeof(GNUPGPREFIX)));
- }
+ PushEntryWithKeyID(GoodSigners, buffer, Debug);
else if (strncmp(buffer, GNUPGVALIDSIG, sizeof(GNUPGVALIDSIG)-1) == 0)
{
- char *sig = buffer + sizeof(GNUPGVALIDSIG);
- std::istringstream iss((string(sig)));
+ std::istringstream iss(buffer + sizeof(GNUPGVALIDSIG));
vector<string> tokens{std::istream_iterator<string>{iss},
std::istream_iterator<string>{}};
- char *p = sig;
- while (*p && isxdigit(*p))
- p++;
- *p = 0;
+ auto const sig = tokens[0];
// Reject weak digest algorithms
Digest digest = FindDigest(tokens[7]);
switch (digest.getState()) {
case Digest::State::Weak:
// Treat them like an expired key: For that a message about expiry
// is emitted, a VALIDSIG, but no GOODSIG.
- SoonWorthlessSigners.push_back({string(sig), digest.name});
+ SoonWorthlessSigners.push_back({sig, digest.name});
if (Debug == true)
std::clog << "Got weak VALIDSIG, key ID: " << sig << std::endl;
break;
case Digest::State::Untrusted:
// Treat them like an expired key: For that a message about expiry
// is emitted, a VALIDSIG, but no GOODSIG.
- WorthlessSigners.push_back(string(sig));
+ WorthlessSigners.push_back(sig);
GoodSigners.erase(std::remove_if(GoodSigners.begin(), GoodSigners.end(), [&](std::string const &goodsig) {
- return IsTheSameKey(string(sig), goodsig); }), GoodSigners.end());
+ return IsTheSameKey(sig, goodsig); }), GoodSigners.end());
if (Debug == true)
std::clog << "Got untrusted VALIDSIG, key ID: " << sig << std::endl;
break;
@@ -248,7 +236,7 @@ string GPGVMethod::VerifyGetSigners(const char *file, const char *outfile,
break;
}
- ValidSigners.push_back(string(sig));
+ ValidSigners.push_back(sig);
}
}
fclose(pipein);
@@ -411,8 +399,8 @@ bool GPGVMethod::URIAcquire(std::string const &Message, FetchItem *Itm)
// structure is too difficult with the method stuff. We keep it
// as three separate vectors for future extensibility.
Res.GPGVOutput = GoodSigners;
- Res.GPGVOutput.insert(Res.GPGVOutput.end(),BadSigners.begin(),BadSigners.end());
- Res.GPGVOutput.insert(Res.GPGVOutput.end(),NoPubKeySigners.begin(),NoPubKeySigners.end());
+ std::move(BadSigners.begin(), BadSigners.end(), std::back_inserter(Res.GPGVOutput));
+ std::move(NoPubKeySigners.begin(), NoPubKeySigners.end(), std::back_inserter(Res.GPGVOutput));
URIDone(Res);
if (_config->FindB("Debug::Acquire::gpgv", false))
diff --git a/test/integration/test-apt-update-ims b/test/integration/test-apt-update-ims
index 241bf383b..9635d8dd6 100755
--- a/test/integration/test-apt-update-ims
+++ b/test/integration/test-apt-update-ims
@@ -49,7 +49,7 @@ runtest() {
$TEST aptget update -o Debug::Acquire::gpgv=1 $APTOPT
cp rootdir/tmp/${TEST}.output goodsign.output
testfileequal 'listsdir.lst' "$(listcurrentlistsdirectory)"
- testsuccess grep '^Got GOODSIG, key ID:' goodsign.output
+ testsuccess grep '^Got GOODSIG ' goodsign.output
fi
# ensure no leftovers in partial