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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: indexrecords.cc,v 1.1.2.4 2003/12/30 02:11:43 mdz Exp $
/*}}}*/
// Include Files /*{{{*/
#include<config.h>
#include <apt-pkg/indexrecords.h>
#include <apt-pkg/tagfile.h>
#include <apt-pkg/error.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/fileutl.h>
#include <apt-pkg/hashes.h>
#include <apt-pkg/gpgv.h>
#include <sys/stat.h>
#include <clocale>
#include <apti18n.h>
/*}}}*/
using std::string;
string indexRecords::GetDist() const
{
return this->Dist;
}
string indexRecords::GetSuite() const
{
return this->Suite;
}
bool indexRecords::CheckDist(const string MaybeDist) const
{
return (this->Dist == MaybeDist
|| this->Suite == MaybeDist);
}
string indexRecords::GetExpectedDist() const
{
return this->ExpectedDist;
}
time_t indexRecords::GetValidUntil() const
{
return this->ValidUntil;
}
const indexRecords::checkSum *indexRecords::Lookup(const string MetaKey)
{
std::map<std::string, indexRecords::checkSum* >::const_iterator sum = Entries.find(MetaKey);
if (sum == Entries.end())
return NULL;
return sum->second;
}
bool indexRecords::Exists(string const &MetaKey) const
{
return Entries.count(MetaKey) == 1;
}
bool indexRecords::Load(const string Filename) /*{{{*/
{
FileFd Fd;
if (OpenMaybeClearSignedFile(Filename, Fd) == false)
return false;
pkgTagFile TagFile(&Fd, Fd.Size());
if (_error->PendingError() == true)
{
strprintf(ErrorText, _("Unable to parse Release file %s"),Filename.c_str());
return false;
}
pkgTagSection Section;
const char *Start, *End;
if (TagFile.Step(Section) == false)
{
strprintf(ErrorText, _("No sections in Release file %s"), Filename.c_str());
return false;
}
Suite = Section.FindS("Suite");
Dist = Section.FindS("Codename");
int i;
for (i=0;HashString::SupportedHashes()[i] != NULL; i++)
{
if (!Section.Find(HashString::SupportedHashes()[i], Start, End))
continue;
string Name;
string Hash;
unsigned long long Size;
while (Start < End)
{
if (!parseSumData(Start, End, Name, Hash, Size))
return false;
indexRecords::checkSum *Sum = new indexRecords::checkSum;
Sum->MetaKeyFilename = Name;
Sum->Hash = HashString(HashString::SupportedHashes()[i],Hash);
Sum->Size = Size;
Entries[Name] = Sum;
}
break;
}
if(HashString::SupportedHashes()[i] == NULL)
{
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;
}
return true;
}
/*}}}*/
std::vector<string> indexRecords::MetaKeys() /*{{{*/
{
std::vector<std::string> keys;
std::map<string,checkSum *>::iterator I = Entries.begin();
while(I != Entries.end()) {
keys.push_back((*I).first);
++I;
}
return keys;
}
/*}}}*/
bool indexRecords::parseSumData(const char *&Start, const char *End, /*{{{*/
string &Name, string &Hash, unsigned long long &Size)
{
Name = "";
Hash = "";
Size = 0;
/* Skip over the first blank */
while ((*Start == '\t' || *Start == ' ' || *Start == '\n' || *Start == '\r')
&& Start < End)
Start++;
if (Start >= End)
return false;
/* Move EntryEnd to the end of the first entry (the hash) */
const char *EntryEnd = Start;
while ((*EntryEnd != '\t' && *EntryEnd != ' ')
&& EntryEnd < End)
EntryEnd++;
if (EntryEnd == End)
return false;
Hash.append(Start, EntryEnd-Start);
/* Skip over intermediate blanks */
Start = EntryEnd;
while (*Start == '\t' || *Start == ' ')
Start++;
if (Start >= End)
return false;
EntryEnd = Start;
/* Find the end of the second entry (the size) */
while ((*EntryEnd != '\t' && *EntryEnd != ' ' )
&& EntryEnd < End)
EntryEnd++;
if (EntryEnd == End)
return false;
Size = strtoull (Start, NULL, 10);
/* Skip over intermediate blanks */
Start = EntryEnd;
while (*Start == '\t' || *Start == ' ')
Start++;
if (Start >= End)
return false;
EntryEnd = Start;
/* Find the end of the third entry (the filename) */
while ((*EntryEnd != '\t' && *EntryEnd != ' ' &&
*EntryEnd != '\n' && *EntryEnd != '\r')
&& EntryEnd < End)
EntryEnd++;
Name.append(Start, EntryEnd-Start);
Start = EntryEnd; //prepare for the next round
return true;
}
/*}}}*/
indexRecords::indexRecords()
{
}
indexRecords::indexRecords(const string ExpectedDist) :
ExpectedDist(ExpectedDist), ValidUntil(0)
{
}