apt-pkg/deb/debrecords.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: debrecords.cc,v 1.10 2001/03/13 06:51:46 jgg Exp $
   4 /* ######################################################################
   5
   6    Debian Package Records - Parser for debian package records
   7
   8    ##################################################################### */
   9                                                                         /*}}}*/
  10 // Include Files                                                        /*{{{*/
  11 #include <apt-pkg/debrecords.h>
  12 #include <apt-pkg/strutl.h>
  13 #include <apt-pkg/error.h>
  14 #include <apt-pkg/aptconfiguration.h>
  15 #include <langinfo.h>
  16                                                                         /*}}}*/
  17
  18 // RecordParser::debRecordParser - Constructor                          /*{{{*/
  19 // ---------------------------------------------------------------------
  20 /* */
  21 debRecordParser::debRecordParser(string FileName,pkgCache &Cache) :
  22                   File(FileName,FileFd::ReadOnlyGzip),
  23                   Tags(&File, std::max(Cache.Head().MaxVerFileSize,
  24                                        Cache.Head().MaxDescFileSize) + 200)
  25 {
  26 }
  27                                                                         /*}}}*/
  28 // RecordParser::Jump - Jump to a specific record                       /*{{{*/
  29 // ---------------------------------------------------------------------
  30 /* */
  31 bool debRecordParser::Jump(pkgCache::VerFileIterator const &Ver)
  32 {
  33    return Tags.Jump(Section,Ver->Offset);
  34 }
  35 bool debRecordParser::Jump(pkgCache::DescFileIterator const &Desc)
  36 {
  37    return Tags.Jump(Section,Desc->Offset);
  38 }
  39                                                                         /*}}}*/
  40 // RecordParser::FileName - Return the archive filename on the site     /*{{{*/
  41 // ---------------------------------------------------------------------
  42 /* */
  43 string debRecordParser::FileName()
  44 {
  45    return Section.FindS("Filename");
  46 }
  47                                                                         /*}}}*/
  48 // RecordParser::Name - Return the package name                         /*{{{*/
  49 // ---------------------------------------------------------------------
  50 /* */
  51 string debRecordParser::Name()
  52 {
  53    return Section.FindS("Package");
  54 }
  55                                                                         /*}}}*/
  56 // RecordParser::Homepage - Return the package homepage                 /*{{{*/
  57 // ---------------------------------------------------------------------
  58 /* */
  59 string debRecordParser::Homepage()
  60 {
  61    return Section.FindS("Homepage");
  62 }
  63                                                                         /*}}}*/
  64 // RecordParser::MD5Hash - Return the archive hash                      /*{{{*/
  65 // ---------------------------------------------------------------------
  66 /* */
  67 string debRecordParser::MD5Hash()
  68 {
  69    return Section.FindS("MD5Sum");
  70 }
  71                                                                         /*}}}*/
  72 // RecordParser::SHA1Hash - Return the archive hash                     /*{{{*/
  73 // ---------------------------------------------------------------------
  74 /* */
  75 string debRecordParser::SHA1Hash()
  76 {
  77    return Section.FindS("SHA1");
  78 }
  79                                                                         /*}}}*/
  80 // RecordParser::SHA256Hash - Return the archive hash                   /*{{{*/
  81 // ---------------------------------------------------------------------
  82 /* */
  83 string debRecordParser::SHA256Hash()
  84 {
  85    return Section.FindS("SHA256");
  86 }
  87                                                                         /*}}}*/
  88 // RecordParser::SHA512Hash - Return the archive hash                   /*{{{*/
  89 // ---------------------------------------------------------------------
  90 /* */
  91 string debRecordParser::SHA512Hash()
  92 {
  93    return Section.FindS("SHA512");
  94 }
  95                                                                         /*}}}*/
  96 // RecordParser::Maintainer - Return the maintainer email               /*{{{*/
  97 // ---------------------------------------------------------------------
  98 /* */
  99 string debRecordParser::Maintainer()
 100 {
 101    return Section.FindS("Maintainer");
 102 }
 103                                                                         /*}}}*/
 104 // RecordParser::RecordField - Return the value of an arbitrary field       /*{{*/
 105 // ---------------------------------------------------------------------
 106 /* */
 107 string debRecordParser::RecordField(const char *fieldName)
 108 {
 109    return Section.FindS(fieldName);
 110 }
 111
 112                                                                         /*}}}*/
 113 // RecordParser::ShortDesc - Return a 1 line description                /*{{{*/
 114 // ---------------------------------------------------------------------
 115 /* */
 116 string debRecordParser::ShortDesc()
 117 {
 118    string Res = LongDesc();
 119    string::size_type Pos = Res.find('\n');
 120    if (Pos == string::npos)
 121       return Res;
 122    return string(Res,0,Pos);
 123 }
 124                                                                         /*}}}*/
 125 // RecordParser::LongDesc - Return a longer description                 /*{{{*/
 126 // ---------------------------------------------------------------------
 127 /* */
 128 string debRecordParser::LongDesc()
 129 {
 130   string orig, dest;
 131
 132   if (!Section.FindS("Description").empty())
 133      orig = Section.FindS("Description").c_str();
 134   else
 135   {
 136      vector<string> const lang = APT::Configuration::getLanguages();
 137      for (vector<string>::const_iterator l = lang.begin();
 138           orig.empty() && l != lang.end(); ++l)
 139         orig = Section.FindS(string("Description-").append(*l).c_str());
 140   }
 141
 142   char const * const codeset = nl_langinfo(CODESET);
 143   if (strcmp(codeset,"UTF-8") != 0) {
 144      UTF8ToCodeset(codeset, orig, &dest);
 145      orig = dest;
 146    }
 147
 148    return orig;
 149 }
 150                                                                         /*}}}*/
 151
 152 static const char *SourceVerSeparators = " ()";
 153
 154 // RecordParser::SourcePkg - Return the source package name if any      /*{{{*/
 155 // ---------------------------------------------------------------------
 156 /* */
 157 string debRecordParser::SourcePkg()
 158 {
 159    string Res = Section.FindS("Source");
 160    string::size_type Pos = Res.find_first_of(SourceVerSeparators);
 161    if (Pos == string::npos)
 162       return Res;
 163    return string(Res,0,Pos);
 164 }
 165                                                                         /*}}}*/
 166 // RecordParser::SourceVer - Return the source version number if present        /*{{{*/
 167 // ---------------------------------------------------------------------
 168 /* */
 169 string debRecordParser::SourceVer()
 170 {
 171    string Pkg = Section.FindS("Source");
 172    string::size_type Pos = Pkg.find_first_of(SourceVerSeparators);
 173    if (Pos == string::npos)
 174       return "";
 175
 176    string::size_type VerStart = Pkg.find_first_not_of(SourceVerSeparators, Pos);
 177    if(VerStart == string::npos)
 178      return "";
 179
 180    string::size_type VerEnd = Pkg.find_first_of(SourceVerSeparators, VerStart);
 181    if(VerEnd == string::npos)
 182      // Corresponds to the case of, e.g., "foo (1.2" without a closing
 183      // paren.  Be liberal and guess what it means.
 184      return string(Pkg, VerStart);
 185    else
 186      return string(Pkg, VerStart, VerEnd - VerStart);
 187 }
 188                                                                         /*}}}*/
 189 // RecordParser::GetRec - Return the whole record                       /*{{{*/
 190 // ---------------------------------------------------------------------
 191 /* */
 192 void debRecordParser::GetRec(const char *&Start,const char *&Stop)
 193 {
 194    Section.GetSection(Start,Stop);
 195 }
 196                                                                         /*}}}*/