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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/** \file cachefilter.h
Collection of functor classes */
/*}}}*/
// Include Files /*{{{*/
#include <config.h>
#include <apt-pkg/cachefile.h>
#include <apt-pkg/cachefilter.h>
#include <apt-pkg/error.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/cacheiterators.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/macros.h>
#include <algorithm>
#include <string>
#include <unordered_map>
#include <string.h>
#include <regex.h>
#include <fnmatch.h>
#include <apti18n.h>
/*}}}*/
namespace APT {
APT_HIDDEN std::unordered_map<std::string, std::vector<std::string>> ArchToTupleMap;
namespace CacheFilter {
APT_CONST Matcher::~Matcher() {}
APT_CONST PackageMatcher::~PackageMatcher() {}
// Name matches RegEx /*{{{*/
PackageNameMatchesRegEx::PackageNameMatchesRegEx(std::string const &Pattern) {
pattern = new regex_t;
int const Res = regcomp(pattern, Pattern.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
if (Res == 0)
return;
delete pattern;
pattern = NULL;
char Error[300];
regerror(Res, pattern, Error, sizeof(Error));
_error->Error(_("Regex compilation error - %s"), Error);
}
bool PackageNameMatchesRegEx::operator() (pkgCache::PkgIterator const &Pkg) {
if (unlikely(pattern == NULL))
return false;
else
return regexec(pattern, Pkg.Name(), 0, 0, 0) == 0;
}
bool PackageNameMatchesRegEx::operator() (pkgCache::GrpIterator const &Grp) {
if (unlikely(pattern == NULL))
return false;
else
return regexec(pattern, Grp.Name(), 0, 0, 0) == 0;
}
PackageNameMatchesRegEx::~PackageNameMatchesRegEx() {
if (pattern == NULL)
return;
regfree(pattern);
delete pattern;
}
/*}}}*/
// Name matches Fnmatch /*{{{*/
PackageNameMatchesFnmatch::PackageNameMatchesFnmatch(std::string const &Pattern) :
Pattern(Pattern) {}
bool PackageNameMatchesFnmatch::operator() (pkgCache::PkgIterator const &Pkg) {
return fnmatch(Pattern.c_str(), Pkg.Name(), FNM_CASEFOLD) == 0;
}
bool PackageNameMatchesFnmatch::operator() (pkgCache::GrpIterator const &Grp) {
return fnmatch(Pattern.c_str(), Grp.Name(), FNM_CASEFOLD) == 0;
}
/*}}}*/
// Architecture matches <abi>-<libc>-<kernel>-<cpu> specification /*{{{*/
//----------------------------------------------------------------------
static std::vector<std::string> ArchToTuple(std::string arch) {
// Strip leading linux- from arch if present
// dpkg says this may disappear in the future
if (APT::String::Startswith(arch, std::string("linux-")))
arch = arch.substr(6);
auto it = ArchToTupleMap.find(arch);
if (it != ArchToTupleMap.end())
{
std::vector<std::string> result = it->second;
// Hack in support for triplets
if (result.size() == 3)
result.emplace(result.begin(), "base");
return result;
} else
{
return {};
}
}
static std::vector<std::string> PatternToTuple(std::string const &arch) {
std::vector<std::string> tuple = VectorizeString(arch, '-');
if (std::find(tuple.begin(), tuple.end(), std::string("any")) != tuple.end() ||
std::find(arch.begin(), arch.end(), '*') != arch.end()) {
while (tuple.size() < 4) {
tuple.emplace(tuple.begin(), "any");
}
return tuple;
} else
return ArchToTuple(arch);
}
/* The complete architecture, consisting of <abi>-<libc>-<kernel>-<cpu>. */
static std::string CompleteArch(std::string const &arch, bool const isPattern) {
auto tuple = isPattern ? PatternToTuple(arch) : ArchToTuple(arch);
// Bah, the commandline will try and pass us stuff like amd64- -- we need
// that not to match an architecture, but the code below would turn it into
// a valid tuple. Let's just use an invalid tuple here.
if (APT::String::Endswith(arch, "-") || APT::String::Startswith(arch, "-"))
return "invalid-invalid-invalid-invalid";
if (tuple.empty()) {
// Fallback for unknown architectures
// Patterns never fail if they contain wildcards, so by this point, arch
// has no wildcards.
tuple = VectorizeString(arch, '-');
switch (tuple.size()) {
case 1:
tuple.emplace(tuple.begin(), "linux");
/* fall through */
case 2:
tuple.emplace(tuple.begin(), "gnu");
/* fall through */
case 3:
tuple.emplace(tuple.begin(), "base");
/* fall through */
break;
}
}
std::replace(tuple.begin(), tuple.end(), std::string("any"), std::string("*"));
return APT::String::Join(tuple, "-");
}
PackageArchitectureMatchesSpecification::PackageArchitectureMatchesSpecification(std::string const &pattern, bool const pisPattern) :
literal(pattern), complete(CompleteArch(pattern, pisPattern)), isPattern(pisPattern) {
}
bool PackageArchitectureMatchesSpecification::operator() (char const * const &arch) {
if (strcmp(literal.c_str(), arch) == 0 ||
strcmp(complete.c_str(), arch) == 0)
return true;
std::string const pkgarch = CompleteArch(arch, !isPattern);
if (isPattern == true)
return fnmatch(complete.c_str(), pkgarch.c_str(), 0) == 0;
return fnmatch(pkgarch.c_str(), complete.c_str(), 0) == 0;
}
bool PackageArchitectureMatchesSpecification::operator() (pkgCache::PkgIterator const &Pkg) {
return (*this)(Pkg.Arch());
}
PackageArchitectureMatchesSpecification::~PackageArchitectureMatchesSpecification() {
}
/*}}}*/
// Package is new install /*{{{*/
PackageIsNewInstall::PackageIsNewInstall(pkgCacheFile * const Cache) : Cache(Cache) {}
APT_PURE bool PackageIsNewInstall::operator() (pkgCache::PkgIterator const &Pkg) {
return (*Cache)[Pkg].NewInstall();
}
PackageIsNewInstall::~PackageIsNewInstall() {}
/*}}}*/
// Generica like True, False, NOT, AND, OR /*{{{*/
APT_CONST bool TrueMatcher::operator() (pkgCache::PkgIterator const &) { return true; }
APT_CONST bool TrueMatcher::operator() (pkgCache::GrpIterator const &) { return true; }
APT_CONST bool TrueMatcher::operator() (pkgCache::VerIterator const &) { return true; }
APT_CONST bool FalseMatcher::operator() (pkgCache::PkgIterator const &) { return false; }
APT_CONST bool FalseMatcher::operator() (pkgCache::GrpIterator const &) { return false; }
APT_CONST bool FalseMatcher::operator() (pkgCache::VerIterator const &) { return false; }
NOTMatcher::NOTMatcher(Matcher * const matcher) : matcher(matcher) {}
bool NOTMatcher::operator() (pkgCache::PkgIterator const &Pkg) { return ! (*matcher)(Pkg); }
bool NOTMatcher::operator() (pkgCache::GrpIterator const &Grp) { return ! (*matcher)(Grp); }
bool NOTMatcher::operator() (pkgCache::VerIterator const &Ver) { return ! (*matcher)(Ver); }
NOTMatcher::~NOTMatcher() { delete matcher; }
ANDMatcher::ANDMatcher() {}
ANDMatcher::ANDMatcher(Matcher * const matcher1) {
AND(matcher1);
}
ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2) {
AND(matcher1).AND(matcher2);
}
ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3) {
AND(matcher1).AND(matcher2).AND(matcher3);
}
ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4) {
AND(matcher1).AND(matcher2).AND(matcher3).AND(matcher4);
}
ANDMatcher::ANDMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4, Matcher * const matcher5) {
AND(matcher1).AND(matcher2).AND(matcher3).AND(matcher4).AND(matcher5);
}
ANDMatcher& ANDMatcher::AND(Matcher * const matcher) { matchers.push_back(matcher); return *this; }
bool ANDMatcher::operator() (pkgCache::PkgIterator const &Pkg) {
for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
if ((**M)(Pkg) == false)
return false;
return true;
}
bool ANDMatcher::operator() (pkgCache::GrpIterator const &Grp) {
for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
if ((**M)(Grp) == false)
return false;
return true;
}
bool ANDMatcher::operator() (pkgCache::VerIterator const &Ver) {
for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
if ((**M)(Ver) == false)
return false;
return true;
}
ANDMatcher::~ANDMatcher() {
for (std::vector<Matcher *>::iterator M = matchers.begin(); M != matchers.end(); ++M)
delete *M;
}
ORMatcher::ORMatcher() {}
ORMatcher::ORMatcher(Matcher * const matcher1) {
OR(matcher1);
}
ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2) {
OR(matcher1).OR(matcher2);
}
ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3) {
OR(matcher1).OR(matcher2).OR(matcher3);
}
ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4) {
OR(matcher1).OR(matcher2).OR(matcher3).OR(matcher4);
}
ORMatcher::ORMatcher(Matcher * const matcher1, Matcher * const matcher2, Matcher * const matcher3, Matcher * const matcher4, Matcher * const matcher5) {
OR(matcher1).OR(matcher2).OR(matcher3).OR(matcher4).OR(matcher5);
}
ORMatcher& ORMatcher::OR(Matcher * const matcher) { matchers.push_back(matcher); return *this; }
bool ORMatcher::operator() (pkgCache::PkgIterator const &Pkg) {
for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
if ((**M)(Pkg) == true)
return true;
return false;
}
bool ORMatcher::operator() (pkgCache::GrpIterator const &Grp) {
for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
if ((**M)(Grp) == true)
return true;
return false;
}
bool ORMatcher::operator() (pkgCache::VerIterator const &Ver) {
for (std::vector<Matcher *>::const_iterator M = matchers.begin(); M != matchers.end(); ++M)
if ((**M)(Ver) == true)
return true;
return false;
}
ORMatcher::~ORMatcher() {
for (std::vector<Matcher *>::iterator M = matchers.begin(); M != matchers.end(); ++M)
delete *M;
}
/*}}}*/
}
}
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