| 1 | // -*- mode: cpp; mode: fold -*- |
| 2 | // Description /*{{{*/ |
| 3 | // $Id: indexrecords.cc,v 1.1.2.4 2003/12/30 02:11:43 mdz Exp $ |
| 4 | /*}}}*/ |
| 5 | // Include Files /*{{{*/ |
| 6 | #include <apt-pkg/indexrecords.h> |
| 7 | #include <apt-pkg/tagfile.h> |
| 8 | #include <apt-pkg/error.h> |
| 9 | #include <apt-pkg/strutl.h> |
| 10 | #include <apti18n.h> |
| 11 | #include <sys/stat.h> |
| 12 | |
| 13 | string indexRecords::GetDist() const |
| 14 | { |
| 15 | return this->Dist; |
| 16 | } |
| 17 | |
| 18 | bool indexRecords::CheckDist(const string MaybeDist) const |
| 19 | { |
| 20 | return (this->Dist == MaybeDist |
| 21 | || this->Suite == MaybeDist); |
| 22 | } |
| 23 | |
| 24 | string indexRecords::GetExpectedDist() const |
| 25 | { |
| 26 | return this->ExpectedDist; |
| 27 | } |
| 28 | |
| 29 | const indexRecords::checkSum *indexRecords::Lookup(const string MetaKey) |
| 30 | { |
| 31 | return Entries[MetaKey]; |
| 32 | } |
| 33 | |
| 34 | bool indexRecords::Load(const string Filename) |
| 35 | { |
| 36 | FileFd Fd(Filename, FileFd::ReadOnly); |
| 37 | pkgTagFile TagFile(&Fd, Fd.Size() + 256); // XXX |
| 38 | if (_error->PendingError() == true) |
| 39 | { |
| 40 | ErrorText = _(("Unable to parse Release file " + Filename).c_str()); |
| 41 | return false; |
| 42 | } |
| 43 | |
| 44 | pkgTagSection Section; |
| 45 | if (TagFile.Step(Section) == false) |
| 46 | { |
| 47 | ErrorText = _(("No sections in Release file " + Filename).c_str()); |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | const char *Start, *End; |
| 52 | Section.Get (Start, End, 0); |
| 53 | |
| 54 | Suite = Section.FindS("Suite"); |
| 55 | Dist = Section.FindS("Codename"); |
| 56 | |
| 57 | int i; |
| 58 | for (i=0;HashString::SupportedHashes()[i] != NULL; i++) |
| 59 | { |
| 60 | if (!Section.Find(HashString::SupportedHashes()[i], Start, End)) |
| 61 | continue; |
| 62 | |
| 63 | string Name; |
| 64 | string Hash; |
| 65 | size_t Size; |
| 66 | while (Start < End) |
| 67 | { |
| 68 | if (!parseSumData(Start, End, Name, Hash, Size)) |
| 69 | return false; |
| 70 | indexRecords::checkSum *Sum = new indexRecords::checkSum; |
| 71 | Sum->MetaKeyFilename = Name; |
| 72 | Sum->Hash = HashString(HashString::SupportedHashes()[i],Hash); |
| 73 | Sum->Size = Size; |
| 74 | Entries[Name] = Sum; |
| 75 | } |
| 76 | break; |
| 77 | } |
| 78 | |
| 79 | if(HashString::SupportedHashes()[i] == NULL) |
| 80 | { |
| 81 | ErrorText = _(("No Hash entry in Release file " + Filename).c_str()); |
| 82 | return false; |
| 83 | } |
| 84 | |
| 85 | string Strdate = Section.FindS("Date"); // FIXME: verify this somehow? |
| 86 | return true; |
| 87 | } |
| 88 | |
| 89 | vector<string> indexRecords::MetaKeys() |
| 90 | { |
| 91 | std::vector<std::string> keys; |
| 92 | std::map<string,checkSum *>::iterator I = Entries.begin(); |
| 93 | while(I != Entries.end()) { |
| 94 | keys.push_back((*I).first); |
| 95 | ++I; |
| 96 | } |
| 97 | return keys; |
| 98 | } |
| 99 | |
| 100 | bool indexRecords::parseSumData(const char *&Start, const char *End, |
| 101 | string &Name, string &Hash, size_t &Size) |
| 102 | { |
| 103 | Name = ""; |
| 104 | Hash = ""; |
| 105 | Size = 0; |
| 106 | /* Skip over the first blank */ |
| 107 | while ((*Start == '\t' || *Start == ' ' || *Start == '\n') |
| 108 | && Start < End) |
| 109 | Start++; |
| 110 | if (Start >= End) |
| 111 | return false; |
| 112 | |
| 113 | /* Move EntryEnd to the end of the first entry (the hash) */ |
| 114 | const char *EntryEnd = Start; |
| 115 | while ((*EntryEnd != '\t' && *EntryEnd != ' ') |
| 116 | && EntryEnd < End) |
| 117 | EntryEnd++; |
| 118 | if (EntryEnd == End) |
| 119 | return false; |
| 120 | |
| 121 | Hash.append(Start, EntryEnd-Start); |
| 122 | |
| 123 | /* Skip over intermediate blanks */ |
| 124 | Start = EntryEnd; |
| 125 | while (*Start == '\t' || *Start == ' ') |
| 126 | Start++; |
| 127 | if (Start >= End) |
| 128 | return false; |
| 129 | |
| 130 | EntryEnd = Start; |
| 131 | /* Find the end of the second entry (the size) */ |
| 132 | while ((*EntryEnd != '\t' && *EntryEnd != ' ' ) |
| 133 | && EntryEnd < End) |
| 134 | EntryEnd++; |
| 135 | if (EntryEnd == End) |
| 136 | return false; |
| 137 | |
| 138 | Size = strtol (Start, NULL, 10); |
| 139 | |
| 140 | /* Skip over intermediate blanks */ |
| 141 | Start = EntryEnd; |
| 142 | while (*Start == '\t' || *Start == ' ') |
| 143 | Start++; |
| 144 | if (Start >= End) |
| 145 | return false; |
| 146 | |
| 147 | EntryEnd = Start; |
| 148 | /* Find the end of the third entry (the filename) */ |
| 149 | while ((*EntryEnd != '\t' && *EntryEnd != ' ' && *EntryEnd != '\n') |
| 150 | && EntryEnd < End) |
| 151 | EntryEnd++; |
| 152 | |
| 153 | Name.append(Start, EntryEnd-Start); |
| 154 | Start = EntryEnd; //prepare for the next round |
| 155 | return true; |
| 156 | } |
| 157 | |
| 158 | indexRecords::indexRecords() |
| 159 | { |
| 160 | } |
| 161 | |
| 162 | indexRecords::indexRecords(const string ExpectedDist) : |
| 163 | ExpectedDist(ExpectedDist) |
| 164 | { |
| 165 | } |