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-rw-r--r--apt-pkg/deb/debrecords.cc229
1 files changed, 229 insertions, 0 deletions
diff --git a/apt-pkg/deb/debrecords.cc b/apt-pkg/deb/debrecords.cc
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+// -*- mode: cpp; mode: fold -*-
+// Description /*{{{*/
+// $Id: debrecords.cc,v 1.10 2001/03/13 06:51:46 jgg Exp $
+/* ######################################################################
+
+ Debian Package Records - Parser for debian package records
+
+ ##################################################################### */
+ /*}}}*/
+// Include Files /*{{{*/
+#include <config.h>
+
+#include <apt-pkg/debrecords.h>
+#include <apt-pkg/debindexfile.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/aptconfiguration.h>
+#include <apt-pkg/fileutl.h>
+#include <apt-pkg/cacheiterators.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/tagfile.h>
+#include <apt-pkg/error.h>
+
+#include <string.h>
+#include <algorithm>
+#include <sstream>
+#include <string>
+#include <vector>
+#include <langinfo.h>
+
+#include <apti18n.h>
+ /*}}}*/
+
+using std::string;
+
+// RecordParser::debRecordParser - Constructor /*{{{*/
+debRecordParser::debRecordParser(string FileName,pkgCache &Cache) :
+ debRecordParserBase(), d(NULL), File(FileName, FileFd::ReadOnly, FileFd::Extension),
+ Tags(&File, std::max(Cache.Head().MaxVerFileSize, Cache.Head().MaxDescFileSize) + 200)
+{
+}
+ /*}}}*/
+// RecordParser::Jump - Jump to a specific record /*{{{*/
+bool debRecordParser::Jump(pkgCache::VerFileIterator const &Ver)
+{
+ if (Ver.end() == true)
+ return false;
+ return Tags.Jump(Section,Ver->Offset);
+}
+bool debRecordParser::Jump(pkgCache::DescFileIterator const &Desc)
+{
+ if (Desc.end() == true)
+ return false;
+ return Tags.Jump(Section,Desc->Offset);
+}
+ /*}}}*/
+debRecordParser::~debRecordParser() {}
+
+debRecordParserBase::debRecordParserBase() : Parser(), d(NULL) {}
+// RecordParserBase::FileName - Return the archive filename on the site /*{{{*/
+string debRecordParserBase::FileName()
+{
+ return Section.FindS("Filename");
+}
+ /*}}}*/
+// RecordParserBase::Name - Return the package name /*{{{*/
+string debRecordParserBase::Name()
+{
+ string Result = Section.FindS("Package");
+
+ // Normalize mixed case package names to lower case, like dpkg does
+ // See Bug#807012 for details
+ std::transform(Result.begin(), Result.end(), Result.begin(), tolower_ascii);
+
+ return Result;
+}
+ /*}}}*/
+// RecordParserBase::Homepage - Return the package homepage /*{{{*/
+string debRecordParserBase::Homepage()
+{
+ return Section.FindS("Homepage");
+}
+ /*}}}*/
+// RecordParserBase::Hashes - return the available archive hashes /*{{{*/
+HashStringList debRecordParserBase::Hashes() const
+{
+ HashStringList hashes;
+ for (char const * const * type = HashString::SupportedHashes(); *type != NULL; ++type)
+ {
+ std::string const hash = Section.FindS(*type);
+ if (hash.empty() == false)
+ hashes.push_back(HashString(*type, hash));
+ }
+ auto const size = Section.FindULL("Size", 0);
+ if (size != 0)
+ hashes.FileSize(size);
+ return hashes;
+}
+ /*}}}*/
+// RecordParserBase::Maintainer - Return the maintainer email /*{{{*/
+string debRecordParserBase::Maintainer()
+{
+ return Section.FindS("Maintainer");
+}
+ /*}}}*/
+// RecordParserBase::RecordField - Return the value of an arbitrary field /*{{*/
+string debRecordParserBase::RecordField(const char *fieldName)
+{
+ return Section.FindS(fieldName);
+}
+ /*}}}*/
+// RecordParserBase::ShortDesc - Return a 1 line description /*{{{*/
+string debRecordParserBase::ShortDesc(std::string const &lang)
+{
+ string const Res = LongDesc(lang);
+ if (Res.empty() == true)
+ return "";
+ string::size_type const Pos = Res.find('\n');
+ if (Pos == string::npos)
+ return Res;
+ return string(Res,0,Pos);
+}
+ /*}}}*/
+// RecordParserBase::LongDesc - Return a longer description /*{{{*/
+string debRecordParserBase::LongDesc(std::string const &lang)
+{
+ string orig;
+ if (lang.empty() == true)
+ {
+ std::vector<string> const lang = APT::Configuration::getLanguages();
+ for (std::vector<string>::const_iterator l = lang.begin();
+ l != lang.end(); ++l)
+ {
+ std::string const tagname = "Description-" + *l;
+ orig = Section.FindS(tagname.c_str());
+ if (orig.empty() == false)
+ break;
+ else if (*l == "en")
+ {
+ orig = Section.FindS("Description");
+ if (orig.empty() == false)
+ break;
+ }
+ }
+ if (orig.empty() == true)
+ orig = Section.FindS("Description");
+ }
+ else
+ {
+ std::string const tagname = "Description-" + lang;
+ orig = Section.FindS(tagname.c_str());
+ if (orig.empty() == true && lang == "en")
+ orig = Section.FindS("Description");
+ }
+
+ char const * const codeset = nl_langinfo(CODESET);
+ if (strcmp(codeset,"UTF-8") != 0) {
+ string dest;
+ UTF8ToCodeset(codeset, orig, &dest);
+ return dest;
+ }
+
+ return orig;
+}
+ /*}}}*/
+
+static const char * const SourceVerSeparators = " ()";
+// RecordParserBase::SourcePkg - Return the source package name if any /*{{{*/
+string debRecordParserBase::SourcePkg()
+{
+ string Res = Section.FindS("Source");
+ string::size_type Pos = Res.find_first_of(SourceVerSeparators);
+ if (Pos == string::npos)
+ return Res;
+ return string(Res,0,Pos);
+}
+ /*}}}*/
+// RecordParserBase::SourceVer - Return the source version number if present /*{{{*/
+string debRecordParserBase::SourceVer()
+{
+ string Pkg = Section.FindS("Source");
+ string::size_type Pos = Pkg.find_first_of(SourceVerSeparators);
+ if (Pos == string::npos)
+ return "";
+
+ string::size_type VerStart = Pkg.find_first_not_of(SourceVerSeparators, Pos);
+ if(VerStart == string::npos)
+ return "";
+
+ string::size_type VerEnd = Pkg.find_first_of(SourceVerSeparators, VerStart);
+ if(VerEnd == string::npos)
+ // Corresponds to the case of, e.g., "foo (1.2" without a closing
+ // paren. Be liberal and guess what it means.
+ return string(Pkg, VerStart);
+ else
+ return string(Pkg, VerStart, VerEnd - VerStart);
+}
+ /*}}}*/
+// RecordParserBase::GetRec - Return the whole record /*{{{*/
+void debRecordParserBase::GetRec(const char *&Start,const char *&Stop)
+{
+ Section.GetSection(Start,Stop);
+}
+ /*}}}*/
+debRecordParserBase::~debRecordParserBase() {}
+
+bool debDebFileRecordParser::LoadContent()
+{
+ // load content only once
+ if (controlContent.empty() == false)
+ return true;
+
+ std::ostringstream content;
+ if (debDebPkgFileIndex::GetContent(content, debFileName) == false)
+ return false;
+ // add two newlines to make sure the scanner finds the section,
+ // which is usually done by pkgTagFile automatically if needed.
+ content << "\n\n";
+
+ controlContent = content.str();
+ if (Section.Scan(controlContent.c_str(), controlContent.length()) == false)
+ return _error->Error(_("Unable to parse package file %s (%d)"), debFileName.c_str(), 3);
+ return true;
+}
+bool debDebFileRecordParser::Jump(pkgCache::VerFileIterator const &) { return LoadContent(); }
+bool debDebFileRecordParser::Jump(pkgCache::DescFileIterator const &) { return LoadContent(); }
+std::string debDebFileRecordParser::FileName() { return debFileName; }
+
+debDebFileRecordParser::debDebFileRecordParser(std::string FileName) : debRecordParserBase(), d(NULL), debFileName(FileName) {}
+debDebFileRecordParser::~debDebFileRecordParser() {}