]> git.saurik.com Git - apt.git/blobdiff - apt-pkg/deb/debmetaindex.cc
eipp: let apt make a plan, not make stuff plane
[apt.git] / apt-pkg / deb / debmetaindex.cc
index aad7df735e188d23ccdbfb8494b972ac322c5f5b..2671fc30dd235420e9dccd75d8c358f0b774ca4e 100644 (file)
@@ -51,8 +51,9 @@ class APT_HIDDEN debReleaseIndexPrivate                                       /*{{{*/
 
    std::vector<std::string> Architectures;
    std::vector<std::string> NoSupportForAll;
+   std::map<std::string, std::string> const ReleaseOptions;
 
-   debReleaseIndexPrivate() : CheckValidUntil(metaIndex::TRI_UNSET), ValidUntilMin(0), ValidUntilMax(0) {}
+   debReleaseIndexPrivate(std::map<std::string, std::string> const &Options) : CheckValidUntil(metaIndex::TRI_UNSET), ValidUntilMin(0), ValidUntilMax(0), ReleaseOptions(Options) {}
 };
                                                                        /*}}}*/
 // ReleaseIndex::MetaIndex* - display helpers                          /*{{{*/
@@ -80,28 +81,27 @@ std::string debReleaseIndex::MetaIndexFile(const char *Type) const
    return _config->FindDir("Dir::State::lists") +
       URItoFileName(MetaIndexURI(Type));
 }
-
-std::string debReleaseIndex::MetaIndexURI(const char *Type) const
+static std::string constructMetaIndexURI(std::string URI, std::string const &Dist, char const * const Type)
 {
-   std::string Res;
-
    if (Dist == "/")
-      Res = URI;
+      ;
    else if (Dist[Dist.size()-1] == '/')
-      Res = URI + Dist;
+      URI += Dist;
    else
-      Res = URI + "dists/" + Dist + "/";
-   
-   Res += Type;
-   return Res;
+      URI += "dists/" + Dist + "/";
+   return URI + Type;
+}
+std::string debReleaseIndex::MetaIndexURI(const char *Type) const
+{
+   return constructMetaIndexURI(URI, Dist, Type);
 }
                                                                        /*}}}*/
 // ReleaseIndex Con- and Destructors                                   /*{{{*/
-debReleaseIndex::debReleaseIndex(std::string const &URI, std::string const &Dist) :
-                                       metaIndex(URI, Dist, "deb"), d(new debReleaseIndexPrivate())
+debReleaseIndex::debReleaseIndex(std::string const &URI, std::string const &Dist, std::map<std::string, std::string> const &Options) :
+                                       metaIndex(URI, Dist, "deb"), d(new debReleaseIndexPrivate(Options))
 {}
-debReleaseIndex::debReleaseIndex(std::string const &URI, std::string const &Dist, bool const pTrusted) :
-                                       metaIndex(URI, Dist, "deb"), d(new debReleaseIndexPrivate())
+debReleaseIndex::debReleaseIndex(std::string const &URI, std::string const &Dist, bool const pTrusted, std::map<std::string, std::string> const &Options) :
+                                       metaIndex(URI, Dist, "deb"), d(new debReleaseIndexPrivate(Options))
 {
    Trusted = pTrusted ? TRI_YES : TRI_NO;
 }
@@ -113,17 +113,10 @@ debReleaseIndex::~debReleaseIndex() {
 // ReleaseIndex::GetIndexTargets                                       /*{{{*/
 static void GetIndexTargetsFor(char const * const Type, std::string const &URI, std::string const &Dist,
       std::vector<debReleaseIndexPrivate::debSectionEntry> const &entries,
-      std::vector<IndexTarget> &IndexTargets)
+      std::vector<IndexTarget> &IndexTargets, std::map<std::string, std::string> const &ReleaseOptions)
 {
    bool const flatArchive = (Dist[Dist.length() - 1] == '/');
-   std::string baseURI = URI;
-   if (flatArchive)
-   {
-      if (Dist != "/")
-         baseURI += Dist;
-   }
-   else
-      baseURI += "dists/" + Dist + "/";
+   std::string const baseURI = constructMetaIndexURI(URI, Dist, "");
    std::string const Release = (Dist == "/") ? "" : Dist;
    std::string const Site = ::URI::ArchiveOnly(URI);
 
@@ -293,8 +286,7 @@ static void GetIndexTargetsFor(char const * const Type, std::string const &URI,
                  }
 
                  // not available in templates, but in the indextarget
-                 Options.insert(std::make_pair("BASE_URI", baseURI));
-                 Options.insert(std::make_pair("REPO_URI", URI));
+                 Options.insert(ReleaseOptions.begin(), ReleaseOptions.end());
                  Options.insert(std::make_pair("IDENTIFIER", Identifier));
                  Options.insert(std::make_pair("TARGET_OF", Type));
                  Options.insert(std::make_pair("CREATED_BY", *T));
@@ -318,7 +310,7 @@ static void GetIndexTargetsFor(char const * const Type, std::string const &URI,
                        MetaKey,
                        ShortDesc,
                        LongDesc,
-                       Options.find("BASE_URI")->second + MetaKey,
+                       baseURI + MetaKey,
                        IsOpt,
                        KeepCompressed,
                        Options
@@ -345,8 +337,8 @@ static void GetIndexTargetsFor(char const * const Type, std::string const &URI,
 std::vector<IndexTarget> debReleaseIndex::GetIndexTargets() const
 {
    std::vector<IndexTarget> IndexTargets;
-   GetIndexTargetsFor("deb-src", URI, Dist, d->DebSrcEntries, IndexTargets);
-   GetIndexTargetsFor("deb", URI, Dist, d->DebEntries, IndexTargets);
+   GetIndexTargetsFor("deb-src", URI, Dist, d->DebSrcEntries, IndexTargets, d->ReleaseOptions);
+   GetIndexTargetsFor("deb", URI, Dist, d->DebEntries, IndexTargets, d->ReleaseOptions);
    return IndexTargets;
 }
                                                                        /*}}}*/
@@ -441,18 +433,13 @@ bool debReleaseIndex::Load(std::string const &Filename, std::string * const Erro
       }
    }
 
+   bool AuthPossible = false;
    if(FoundHashSum == false)
-   {
-      if (ErrorText != NULL)
-        strprintf(*ErrorText, _("No Hash entry in Release file %s"), Filename.c_str());
-      return false;
-   }
-   if(FoundStrongHashSum == false)
-   {
-      if (ErrorText != NULL)
-        strprintf(*ErrorText, _("No Hash entry in Release file %s which is considered strong enough for security purposes"), Filename.c_str());
-      return false;
-   }
+      _error->Warning(_("No Hash entry in Release file %s"), Filename.c_str());
+   else if(FoundStrongHashSum == false)
+      _error->Warning(_("No Hash entry in Release file %s which is considered strong enough for security purposes"), Filename.c_str());
+   else
+      AuthPossible = true;
 
    std::string const StrDate = Section.FindS("Date");
    if (RFC1123StrToTime(StrDate.c_str(), Date) == false)
@@ -540,18 +527,19 @@ bool debReleaseIndex::Load(std::string const &Filename, std::string * const Erro
       }
    }
 
-   LoadedSuccessfully = TRI_YES;
-   return true;
+   if (AuthPossible)
+      LoadedSuccessfully = TRI_YES;
+   return AuthPossible;
 }
                                                                        /*}}}*/
 metaIndex * debReleaseIndex::UnloadedClone() const                     /*{{{*/
 {
    if (Trusted == TRI_NO)
-      return new debReleaseIndex(URI, Dist, false);
+      return new debReleaseIndex(URI, Dist, false, d->ReleaseOptions);
    else if (Trusted == TRI_YES)
-      return new debReleaseIndex(URI, Dist, true);
+      return new debReleaseIndex(URI, Dist, true, d->ReleaseOptions);
    else
-      return new debReleaseIndex(URI, Dist);
+      return new debReleaseIndex(URI, Dist, d->ReleaseOptions);
 }
                                                                        /*}}}*/
 bool debReleaseIndex::parseSumData(const char *&Start, const char *End,        /*{{{*/
@@ -616,7 +604,7 @@ bool debReleaseIndex::parseSumData(const char *&Start, const char *End,     /*{{{*/
 
 bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool const &GetAll)/*{{{*/
 {
-#define APT_TARGET(X) IndexTarget("", X, MetaIndexInfo(X), MetaIndexURI(X), false, false, std::map<std::string,std::string>())
+#define APT_TARGET(X) IndexTarget("", X, MetaIndexInfo(X), MetaIndexURI(X), false, false, d->ReleaseOptions)
    pkgAcqMetaClearSig * const TransactionManager = new pkgAcqMetaClearSig(Owner,
         APT_TARGET("InRelease"), APT_TARGET("Release"), APT_TARGET("Release.gpg"), this);
 #undef APT_TARGET
@@ -687,12 +675,19 @@ bool debReleaseIndex::SetSignedBy(std::string const &pSignedBy)
         std::stringstream os;
         std::copy(fingers.begin(), fingers.end(), std::ostream_iterator<std::string>(os, ","));
         SignedBy = os.str();
-        while (SignedBy[SignedBy.size() - 1] == ',')
-           SignedBy.resize(SignedBy.size() - 1);
       }
+      // Normalize the string: Remove trailing commas
+      while (SignedBy[SignedBy.size() - 1] == ',')
+        SignedBy.resize(SignedBy.size() - 1);
+   }
+   else {
+      // Only compare normalized strings
+      auto pSignedByView = APT::StringView(pSignedBy);
+      while (pSignedByView[pSignedByView.size() - 1] == ',')
+        pSignedByView = pSignedByView.substr(0, pSignedByView.size() - 1);
+      if (pSignedByView != SignedBy)
+        return _error->Error(_("Conflicting values set for option %s regarding source %s %s: %s != %s"), "Signed-By", URI.c_str(), Dist.c_str(), SignedBy.c_str(), pSignedByView.to_string().c_str());
    }
-   else if (SignedBy != pSignedBy)
-      return _error->Error(_("Conflicting values set for option %s regarding source %s %s"), "Signed-By", URI.c_str(), Dist.c_str());
    return true;
 }
                                                                        /*}}}*/
@@ -749,6 +744,10 @@ std::vector <pkgIndexFile *> *debReleaseIndex::GetIndexFiles()             /*{{{*/
    return Indexes;
 }
                                                                        /*}}}*/
+std::map<std::string, std::string> debReleaseIndex::GetReleaseOptions()
+{
+   return d->ReleaseOptions;
+}
 
 static bool ReleaseFileName(debReleaseIndex const * const That, std::string &ReleaseFile)/*{{{*/
 {
@@ -898,7 +897,7 @@ class APT_HIDDEN debSLTypeDebian : public pkgSourceList::Type               /*{{{*/
       return metaIndex::TRI_DONTCARE;
    }
 
-   time_t GetTimeOption(std::map<std::string, std::string>const &Options, char const * const name) const
+   static time_t GetTimeOption(std::map<std::string, std::string>const &Options, char const * const name)
    {
       std::map<std::string, std::string>::const_iterator const opt = Options.find(name);
       if (opt == Options.end())
@@ -906,35 +905,102 @@ class APT_HIDDEN debSLTypeDebian : public pkgSourceList::Type            /*{{{*/
       return strtoull(opt->second.c_str(), NULL, 10);
    }
 
+   static bool GetBoolOption(std::map<std::string, std::string> const &Options, char const * const name, bool const defVal)
+   {
+      std::map<std::string, std::string>::const_iterator const opt = Options.find(name);
+      if (opt == Options.end())
+        return defVal;
+      return StringToBool(opt->second, defVal);
+   }
+
+   static std::vector<std::string> GetMapKeys(std::map<std::string, std::string> const &Options)
+   {
+      std::vector<std::string> ret;
+      ret.reserve(Options.size());
+      for (auto &&O: Options)
+        ret.emplace_back(O.first);
+      std::sort(ret.begin(), ret.end());
+      return ret;
+   }
+
+   static bool MapsAreEqual(std::map<std::string, std::string> const &OptionsA,
+        std::map<std::string, std::string> const &OptionsB,
+        std::string const &URI, std::string const &Dist)
+   {
+      auto const KeysA = GetMapKeys(OptionsA);
+      auto const KeysB = GetMapKeys(OptionsB);
+      auto const m = std::mismatch(KeysA.begin(), KeysA.end(), KeysB.begin());
+      if (m.first != KeysA.end())
+      {
+        if (std::find(KeysB.begin(), KeysB.end(), *m.first) == KeysB.end())
+           return _error->Error(_("Conflicting values set for option %s regarding source %s %s"), m.first->c_str(), "<set>", "<unset>");
+        else
+           return _error->Error(_("Conflicting values set for option %s regarding source %s %s"), m.second->c_str(), "<set>", "<unset>");
+      }
+      if (m.second != KeysB.end())
+      {
+        if (std::find(KeysA.begin(), KeysA.end(), *m.second) == KeysA.end())
+           return _error->Error(_("Conflicting values set for option %s regarding source %s %s"), m.first->c_str(), "<set>", "<unset>");
+        else
+           return _error->Error(_("Conflicting values set for option %s regarding source %s %s"), m.second->c_str(), "<set>", "<unset>");
+      }
+      for (auto&& key: KeysA)
+      {
+        if (key == "BASE_URI" || key == "REPO_URI")
+           continue;
+        auto const a = OptionsA.find(key);
+        auto const b = OptionsB.find(key);
+        if (unlikely(a == OptionsA.end() || b == OptionsB.end()) || a->second != b->second)
+           return _error->Error(_("Conflicting values set for option %s regarding source %s %s"), key.c_str(), URI.c_str(), Dist.c_str());
+      }
+      return true;
+   }
+
    protected:
 
    bool CreateItemInternal(std::vector<metaIndex *> &List, std::string const &URI,
                           std::string const &Dist, std::string const &Section,
                           bool const &IsSrc, std::map<std::string, std::string> const &Options) const
    {
-      debReleaseIndex *Deb = NULL;
-      for (std::vector<metaIndex *>::const_iterator I = List.begin();
-          I != List.end(); ++I)
+      std::map<std::string,std::string> ReleaseOptions = {{
+        { "BASE_URI", constructMetaIndexURI(URI, Dist, "") },
+        { "REPO_URI", URI },
+      }};
+      if (GetBoolOption(Options, "allow-insecure", _config->FindB("Acquire::AllowInsecureRepositories")))
+        ReleaseOptions.emplace("ALLOW_INSECURE", "true");
+      if (GetBoolOption(Options, "allow-weak", _config->FindB("Acquire::AllowWeakRepositories")))
+        ReleaseOptions.emplace("ALLOW_WEAK", "true");
+      if (GetBoolOption(Options, "allow-downgrade-to-insecure", _config->FindB("Acquire::AllowDowngradeToInsecureRepositories")))
+        ReleaseOptions.emplace("ALLOW_DOWNGRADE_TO_INSECURE", "true");
+
+      debReleaseIndex * Deb = nullptr;
+      std::string const FileName = URItoFileName(constructMetaIndexURI(URI, Dist, "Release"));
+      for (auto const &I: List)
       {
         // We only worry about debian entries here
-        if (strcmp((*I)->GetType(), "deb") != 0)
+        if (strcmp(I->GetType(), "deb") != 0)
            continue;
 
-        /* This check insures that there will be only one Release file
+        auto const D = dynamic_cast<debReleaseIndex*>(I);
+        if (unlikely(D == nullptr))
+           continue;
+
+        /* This check ensures that there will be only one Release file
            queued for all the Packages files and Sources files it
            corresponds to. */
-        if ((*I)->GetURI() == URI && (*I)->GetDist() == Dist)
+        if (URItoFileName(D->MetaIndexURI("Release")) == FileName)
         {
-           Deb = dynamic_cast<debReleaseIndex*>(*I);
-           if (Deb != NULL)
-              break;
+           if (MapsAreEqual(ReleaseOptions, D->GetReleaseOptions(), URI, Dist) == false)
+              return false;
+           Deb = D;
+           break;
         }
       }
 
       // No currently created Release file indexes this entry, so we create a new one.
-      if (Deb == NULL)
+      if (Deb == nullptr)
       {
-        Deb = new debReleaseIndex(URI, Dist);
+        Deb = new debReleaseIndex(URI, Dist, ReleaseOptions);
         List.push_back(Deb);
       }
 
@@ -988,12 +1054,7 @@ class APT_HIDDEN debSLTypeDebian : public pkgSourceList::Type             /*{{{*/
         }), mytargets.end());
       }
 
-      bool UsePDiffs = _config->FindB("Acquire::PDiffs", true);
-      {
-        std::map<std::string, std::string>::const_iterator const opt = Options.find("pdiffs");
-        if (opt != Options.end())
-           UsePDiffs = StringToBool(opt->second);
-      }
+      bool const UsePDiffs = GetBoolOption(Options, "pdiffs", _config->FindB("Acquire::PDiffs", true));
 
       std::string UseByHash = _config->Find("APT::Acquire::By-Hash", "yes");
       UseByHash = _config->Find("Acquire::By-Hash", UseByHash);