static vector< FileDownloadRecord > getDownloadInfoFromRelease(
const Config& config, const IndexEntry& indexEntry, const string& suffix)
{
auto baseUri = getUriOfIndexEntry(indexEntry);
// TODO: make cachefiles::getAlias* functions
auto alias = indexEntry.uri + ' ' + indexEntry.distribution;
vector< FileDownloadRecord > result;
try
{
auto releaseFilePath = getPathOfMasterReleaseLikeList(config, indexEntry);
RequiredFile releaseFile(releaseFilePath, "r");
HashSums::Type currentHashSumType = HashSums::Count;
// now we need to find if this variant is present in the release file
string line;
smatch m;
while (!releaseFile.getLine(line).eof())
{
if (line.compare(0, 3, "MD5") == 0)
{
currentHashSumType = HashSums::MD5;
}
else if (line.compare(0, 4, "SHA1") == 0)
{
currentHashSumType = HashSums::SHA1;
}
else if (line.compare(0, 6, "SHA256") == 0)
{
currentHashSumType = HashSums::SHA256;
}
else if (line.empty() || !isspace(line[0])) // end of hash sum block
{
currentHashSumType = HashSums::Count;
}
else if (currentHashSumType != HashSums::Count && line.find(suffix) != string::npos)
{
static sregex hashSumsLineRegex = sregex::compile("\\s([[:xdigit:]]+)\\s+(\\d+)\\s+(.*)");
if (!regex_match(line, m, hashSumsLineRegex))
{
fatal2(__("malformed line '%s'"), line);
}
string name = m[3];
if (name.compare(0, suffix.size(), suffix) != 0)
{
continue; // doesn't start with suffix
}
// filling result structure
string uri = baseUri + '/' + name;
bool foundRecord = false;
FORIT(recordIt, result)
{
if (recordIt->uri == uri)
{
recordIt->hashSums[currentHashSumType] = m[1];
foundRecord = true;
break;
}
}
if (!foundRecord)
{
FileDownloadRecord& record =
(result.push_back(FileDownloadRecord()), *(result.rbegin()));
record.uri = uri;
record.size = string2uint32(m[2]);
record.hashSums[currentHashSumType] = m[1];
}
}
}
// checks
FORIT(recordIt, result)
{
if (recordIt->hashSums.empty())
{
fatal2(__("no hash sums defined for the index URI '%s'"), recordIt->uri);
}
}
}
catch (Exception&)
{
fatal2("unable to parse the release '%s'", alias);
}
return result;
}
uint32_t string2uint32(pair< string::const_iterator, string::const_iterator > input)
{
return string2uint32(StringRange{ &*input.first, &*input.second });
}
