X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/f060e833f53ba3ed0024f8a2bebfc78e8aa552f2..7adf8bb88faba98793998bed1e6c60f4b5483531:/apt-pkg/indexrecords.cc

diff --git a/apt-pkg/indexrecords.cc b/apt-pkg/indexrecords.cc
index 502f454a8..ba5b7c846 100644
--- a/apt-pkg/indexrecords.cc
+++ b/apt-pkg/indexrecords.cc
@@ -7,9 +7,12 @@
 #include <apt-pkg/tagfile.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/strutl.h>
+#include <apt-pkg/configuration.h>
 #include <apti18n.h>
 #include <sys/stat.h>
+#include <clocale>
 
+									/*}}}*/
 string indexRecords::GetDist() const
 {
    return this->Dist;
@@ -26,30 +29,43 @@ string indexRecords::GetExpectedDist() const
    return this->ExpectedDist;
 }
 
+time_t indexRecords::GetValidUntil() const
+{
+   return this->ValidUntil;
+}
+
 const indexRecords::checkSum *indexRecords::Lookup(const string MetaKey)
 {
    return Entries[MetaKey];
 }
 
-bool indexRecords::Load(const string Filename)
+bool indexRecords::Exists(string const &MetaKey) const
+{
+   return Entries.count(MetaKey) == 1;
+}
+
+bool indexRecords::Load(const string Filename)				/*{{{*/
 {
    FileFd Fd(Filename, FileFd::ReadOnly);
    pkgTagFile TagFile(&Fd, Fd.Size() + 256); // XXX
    if (_error->PendingError() == true)
    {
-      ErrorText = _(("Unable to parse Release file " + Filename).c_str());
+      strprintf(ErrorText, _("Unable to parse Release file %s"),Filename.c_str());
       return false;
    }
 
    pkgTagSection Section;
-   if (TagFile.Step(Section) == false)
-   {
-      ErrorText = _(("No sections in Release file " + Filename).c_str());
-      return false;
-   }
-
    const char *Start, *End;
-   Section.Get (Start, End, 0);
+   // Skip over sections beginning with ----- as this is an idicator for clearsigns
+   do {
+      if (TagFile.Step(Section) == false)
+      {
+	 strprintf(ErrorText, _("No sections in Release file %s"), Filename.c_str());
+	 return false;
+      }
+
+      Section.Get (Start, End, 0);
+   } while (End - Start > 5 && strncmp(Start, "-----", 5) == 0);
 
    Suite = Section.FindS("Suite");
    Dist = Section.FindS("Codename");
@@ -78,15 +94,57 @@ bool indexRecords::Load(const string Filename)
 
    if(HashString::SupportedHashes()[i] == NULL)
    {
-      ErrorText = _(("No Hash entry in Release file " + Filename).c_str());
+      strprintf(ErrorText, _("No Hash entry in Release file %s"), Filename.c_str());
       return false;
-   }  
+   }
+
+   string Label = Section.FindS("Label");
+   string StrDate = Section.FindS("Date");
+   string StrValidUntil = Section.FindS("Valid-Until");
+
+   // if we have a Valid-Until header in the Release file, use it as default
+   if (StrValidUntil.empty() == false)
+   {
+      if(RFC1123StrToTime(StrValidUntil.c_str(), ValidUntil) == false)
+      {
+	 strprintf(ErrorText, _("Invalid 'Valid-Until' entry in Release file %s"), Filename.c_str());
+	 return false;
+      }
+   }
+   // get the user settings for this archive and use what expires earlier
+   int MaxAge = _config->FindI("Acquire::Max-ValidTime", 0);
+   if (Label.empty() == false)
+      MaxAge = _config->FindI(string("Acquire::Max-ValidTime::" + Label).c_str(), MaxAge);
+   int MinAge = _config->FindI("Acquire::Min-ValidTime", 0);
+   if (Label.empty() == false)
+      MinAge = _config->FindI(string("Acquire::Min-ValidTime::" + Label).c_str(), MinAge);
+
+   if(MaxAge == 0 &&
+      (MinAge == 0 || ValidUntil == 0)) // No user settings, use the one from the Release file
+      return true;
+
+   time_t date;
+   if (RFC1123StrToTime(StrDate.c_str(), date) == false)
+   {
+      strprintf(ErrorText, _("Invalid 'Date' entry in Release file %s"), Filename.c_str());
+      return false;
+   }
+
+   if (MinAge != 0 && ValidUntil != 0) {
+      time_t const min_date = date + MinAge;
+      if (ValidUntil < min_date)
+	 ValidUntil = min_date;
+   }
+   if (MaxAge != 0) {
+      time_t const max_date = date + MaxAge;
+      if (ValidUntil == 0 || ValidUntil > max_date)
+	 ValidUntil = max_date;
+   }
 
-   string Strdate = Section.FindS("Date"); // FIXME: verify this somehow?
    return true;
 }
-
-vector<string> indexRecords::MetaKeys()
+									/*}}}*/
+vector<string> indexRecords::MetaKeys()					/*{{{*/
 {
    std::vector<std::string> keys;
    std::map<string,checkSum *>::iterator I = Entries.begin();
@@ -96,8 +154,8 @@ vector<string> indexRecords::MetaKeys()
    }
    return keys;
 }
-
-bool indexRecords::parseSumData(const char *&Start, const char *End,
+									/*}}}*/
+bool indexRecords::parseSumData(const char *&Start, const char *End,	/*{{{*/
 				   string &Name, string &Hash, size_t &Size)
 {
    Name = "";
@@ -154,12 +212,12 @@ bool indexRecords::parseSumData(const char *&Start, const char *End,
    Start = EntryEnd; //prepare for the next round
    return true;
 }
-
+									/*}}}*/
 indexRecords::indexRecords()
 {
 }
 
 indexRecords::indexRecords(const string ExpectedDist) :
-   ExpectedDist(ExpectedDist)
+   ExpectedDist(ExpectedDist), ValidUntil(0)
 {
 }