Exemplo n.º 1
0
//---------------------------------------------------------------------------
void File_Pdf::Object_Root()
{
    Element_Info1("Document Catalog");

    //Parsing
    string Key;
    Ztring Value;
    while (Element_Offset<Element_Size)
    {
        if (Get_Next(Key, Value))
        {
            for (;;)
            {
                Get_Next(Key, Value);
                if (Key.empty())
                    break;
                else if (Key=="Metadata")
                {
                    int32u ObjectNumber=Value.To_int32u();
                    Objects[ObjectNumber].Type=Type_Metadata;
                    Objects[ObjectNumber].TopObject=Objects_Current->first;
                    Objects[Objects_Current->first].Bottoms.push_back(ObjectNumber);
                    Param_Info1(__T("Metadata is at offset 0x"+Ztring().From_Number(Objects[ObjectNumber].Offset)));
                }
            }

            continue;
        }

        if (Key.empty())
            break;
    }
}
Exemplo n.º 2
0
//---------------------------------------------------------------------------
void File_Tar::Read_Buffer_Continue()
{
    if (File_Size<257)
    {
        Reject();
        return;
    }
    if (Buffer_Size<257)
        return; //Wait for more data

    //Parsing
    Ztring ChecksumO;
    Skip_Local(100,                                             "File name");
    Skip_Local(  8,                                             "File mode");
    Skip_Local(  8,                                             "Owner's numeric user ID");
    Skip_Local( 12,                                             "Group's numeric user ID");
    Skip_Local( 12,                                             "File size in bytes");
    Skip_Local(  8,                                             "Last modification time in numeric Unix time format");
    Get_Local (  8, ChecksumO,                                  "Checksum for header block");
    Skip_B1(                                                    "Link indicator (file type)");
    Skip_Local(100,                                             "Name of linked file");
    Skip_XX(File_Size-257,                                      "Data");

    FILLING_BEGIN();
        //Handling Checksum
        int32u Checksum=ChecksumO.To_int32u(8);
        int32u ChecksumU=0;
        int32u ChecksumS=0;
        for (size_t Pos=0; Pos<257; Pos++)
        {
            if (Pos==148)
            {
                ChecksumU+=32*8; //8 spaces
                ChecksumS+=32*8; //8 spaces
                Pos+=7; //Skiping Checksum
            }
            ChecksumU+=(int8u)Buffer[Pos];
            ChecksumS+=(int8s)Buffer[Pos];
        }

        if (ChecksumU!=Checksum && ChecksumS!=Checksum)
        {
            Reject("Tar");
            return;
        }

        //Filling
        Accept("Tar");

        Fill(Stream_General, 0, General_Format, "Tar");

        Reject("Tar");
    FILLING_END();
}
Exemplo n.º 3
0
//---------------------------------------------------------------------------
void File_Pdf::Object_Metadata()
{
    Element_Info1("Metadata");

    //Parsing
    string Key;
    Ztring Value;
    int32u Length=0;
    while (Element_Offset<Element_Size)
    {
        if (Get_Next(Key, Value))
        {
            for (;;)
            {
                Get_Next(Key, Value);
                if (Key.empty())
                    break;
                else if (Key=="Length")
                {
                    Length=Value.To_int32u();
                }
            }

            continue;
        }

        if (Key.empty())
            break;
        else if (Key=="stream")
        {
            //Removig end of lines
            if (Element_Offset<Element_Size && Buffer[Buffer_Offset+(size_t)Element_Offset]=='\r')
                Element_Offset++;
            if (Element_Offset<Element_Size && Buffer[Buffer_Offset+(size_t)Element_Offset]=='\n')
                Element_Offset++;

            #ifndef MEDIAINFO_TINYXML2_NO
            File_Xmp MI;
            Open_Buffer_Init(&MI, Length);
            Open_Buffer_Continue(&MI, Buffer+Buffer_Offset+(size_t)Element_Offset, Length);
            Skip_XX(Length,                                     "Stream, Data");
            Open_Buffer_Finalize(&MI);
            Merge(MI, Stream_General, 0, 0);
            #endif //MEDIAINFO_TINYXML2_NO
        }
    }
}
Exemplo n.º 4
0
//---------------------------------------------------------------------------
void File_Pdf::trailer()
{
    Element_Begin1("Trailer");

    //Parsing
    int32u Prev=(int32u)-1;
    string Key;
    Ztring Value;
    Skip_String(SizeOfLine(),                                       "Object name");
    while (Element_Offset<Element_Size)
    {
        if (Get_Next(Key, Value))
        {
            for (;;)
            {
                Get_Next(Key, Value);
                if (Key.empty())
                    break;
                else if (Key=="Root")
                {
                    int32u ObjectNumber=Value.To_int32u();
                    Objects[ObjectNumber].Type=Type_Root;
                    Objects[ObjectNumber].TopObject=(int32u)-1;
                    Objects[(int32u)-1].Bottoms.push_back(ObjectNumber);
                    Param_Info1(__T("Document Catalog is at offset 0x"+Ztring().From_Number(Objects[ObjectNumber].Offset, 16)));
                }
                else if (Key=="Info")
                {
                    int32u ObjectNumber=Value.To_int32u();
                    Objects[ObjectNumber].Type=Type_Info;
                    Objects[ObjectNumber].TopObject=(int32u)-1;
                    Objects[(int32u)-1].Bottoms.push_back(ObjectNumber);
                    Param_Info1(__T("Info is at offset 0x"+Ztring().From_Number(Objects[ObjectNumber].Offset, 16)));
                }
                else if (Key=="Prev")
                {
                    Prev=Value.To_int32u();
                    Param_Info1(__T("Previous Cross-Reference Table is at offset 0x"+Ztring().From_Number(Prev, 16)));
                }
            }

            continue;
        }

        if (Key.empty())
            break;
    }

    Element_End0();

    //Previous Cross-Reference Table
    if (Prev!=(int32u)-1)
    {
        GoTo(Prev);
        return;
    }

    objects::iterator Object_Top=Objects.find((int32u)-1);
    if (Offsets.empty() || Object_Top==Objects.end())
    {
        Finish();
        return;
    }

    sort(Offsets.begin(), Offsets.end());

    //Offsets_Current=Offsets.end(); //No more used for the moment
    Objects[(int32u)-1].BottomPos=0;
    Objects_Current=Objects.find(Object_Top->second.Bottoms[0]);
    GoTo(Objects_Current->second.Offset);
    State=State_Parsing_object;
}