CTT23{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}
- First, look at CTF01.csproj, you can open wth Visual Studio
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net7.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<Platforms>AnyCPU;x64</Platforms>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="QuestPDF" Version="2022.12.1" />
<PackageReference Include="System.Drawing.Common" Version="7.0.0" />
</ItemGroup>
</Project>We can see that it is a C# project that uses 2 packages: QuestPDF and System.Drawing, and will be built as an exe with framework .net 7.0.
- Let add the main function to Program.cs.
using System.Diagnostics;
using CTF01;
using QuestPDF.Fluent;
using QuestPDF.Previewer;
class Program
{
static void Main(string[] args)
{
var filePath = "CTF01.pdf";
}
}- To generate output, we need to edit Program.cs follow this document
using System.Diagnostics;
using CTF01;
using QuestPDF.Fluent;
using QuestPDF.Previewer;
class Program
{
static void Main(string[] args)
{
var filePath = "CTF01.pdf";
var report = new T01F();
report.GeneratePdf(filePath);
}
}The warning will appear.
![]
// Before
using QuestPDF.Drawing;
using QuestPDF.Fluent;
using QuestPDF.Helpers;
using QuestPDF.Infrastructure;
using SysDwg = System.Drawing;
using System.Drawing.Printing;
using System.Drawing;
namespace CTF01;
public class T01F
{
//private ServConfigulation SvConfig = Utilities.GetSvConfig();
protected string fontTH = "TH Sarabun New";
protected float lineHeight = 0.925f;
public T01F()
{
}
public DocumentMetadata GetMetadata() => DocumentMetadata.Default;
public void Compose(IDocumentContainer container)
{
var genStyle = TextStyle.Default.FontSize(14).FontFamily(fontTH);
string waterMarkColor = "#f2f3fd";
var waterMarkStyle = TextStyle.Default.ExtraBold().LetterSpacing(0.2f).FontSize(64).FontColor(waterMarkColor);
container
.Page(page =>
{
page.Margin(10);
page.Header().Element(ComposeHeader);
page.Content().Element(ComposeContent);
page.Footer().AlignCenter().Text(text =>
{
text.CurrentPageNumber();
text.Span(" / ");
text.TotalPages();
});
page.Background().Rotate(-45)
.TranslateX(-355)
.TranslateY(360)
.Column(column =>
{
column.Item().AlignCenter().Text("THIS IS EASY CTF").Style(waterMarkStyle);
column.Item().AlignCenter().Text("Backgroud is not flag").Style(waterMarkStyle);
});
});
}
void ComposeHeader(IContainer container)
{
var titleStyle = TextStyle.Default.FontSize(20).Bold().FontFamily("Times New Roman");
//var smStyle1 = TextStyle.Default.FontFamily("Times New Roman").FontSize(10).FontColor(Colors.Blue.Darken4);
//var smStyle3 = TextStyle.Default.FontFamily("Times New Roman").FontSize(9).FontColor(Colors.Blue.Darken4);
//var titleStyle = TextStyle.Default.FontSize(24).Bold().FontFamily(fontTH);
var smStyle1 = TextStyle.Default.FontFamily("Times New Roman").FontSize(10).FontColor(Colors.Blue.Darken4);
var smStyle3 = TextStyle.Default.FontFamily("Times New Roman").FontSize(9).FontColor(Colors.Blue.Darken4);
var genStyle = TextStyle.Default.FontSize(15).FontFamily(fontTH);
container.PaddingVertical(25).PaddingHorizontal(25).Layers(layers =>
{
layers.PrimaryLayer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
column.Item().PaddingLeft(75).Text(text =>
{
});
column.Item().Height(14);
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
});
});
}
void ComposeContent(IContainer container)
{
var gen0Style = TextStyle.Default.FontSize(40).FontFamily(fontTH).SemiBold();
string flag = "";
string s3 = " C H R IS";
container.PaddingVertical(90).PaddingHorizontal(120).Layers(layers =>
{
layers.PrimaryLayer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(67).Text(text =>
{
text.Span(flag + "\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(" S").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.93f);
});
column.Item().PaddingLeft(75).Text(text =>
{
//text.Span($"{SvConfig.AClinicAddressEn} ").Style(smStyle3).LineHeight(1.01f).LetterSpacing(0.05f);
//text.Span(SvConfig.AClinicAddressEnL2).Style(smStyle3).LineHeight(1.01f).LetterSpacing(0.08f);
});
column.Item().Height(14);
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(72).Text(text =>
{
text.Span("\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(" SAP").Style(gen0Style).LineHeight(1.01f).LetterSpacing(.39f);
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(219).Text(text =>
{
text.Span( "\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span("EA").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.00f);
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(211).Text(text =>
{
text.Span("\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(" Y ").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.00f);
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(47).Text(text =>
{
text.Span("\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(s3).Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.00f);
});
});
//layers.Layer().PaddingTop(5).Width(20, Unit.Millimetre).Image(imageData);
});
}
private int SectionCount()
{
int i = 0;
return i;
}
private int MeasureStringSizeFFormat(string st1,string fontst1,int font1size)
{
// Set up string.
string measureString = st1;
SysDwg.Font stringFont = new SysDwg.Font(fontst1, font1size);
// Set maximum width of string.
int stringWidth = 1000;
// Measure string.
SysDwg.SizeF stringSize = new SysDwg.SizeF();
//stringSize = e.Graphics.MeasureString(measureString, stringFont, layoutSize, newStringFormat);
//stringSize = e.Graphics.MeasureString(measureString, stringFont, stringWidth);
//https://learn.microsoft.com/en-us/dotnet/api/system.drawing.graphics.measurestring?view=windowsdesktop-8.0#system-drawing-graphics-measurestring(system-string-system-drawing-font-system-int32)
PrintDocument pd = new();
Graphics g = pd.PrinterSettings.CreateMeasurementGraphics();
stringSize = g.MeasureString(measureString, stringFont, stringWidth);
return (int)stringSize.Width;
}
}// After
using QuestPDF.Drawing;
using QuestPDF.Fluent;
using QuestPDF.Helpers;
using QuestPDF.Infrastructure;
using SysDwg = System.Drawing;
using System.Drawing.Printing;
using System.Drawing;
namespace CTF01;
public class T01F : IDocument
{
//private ServConfigulation SvConfig = Utilities.GetSvConfig();
protected string fontTH = "TH Sarabun New";
protected float lineHeight = 0.925f;
public T01F()
{
}
public DocumentMetadata GetMetadata() => DocumentMetadata.Default;
public void Compose(IDocumentContainer container)
{
var genStyle = TextStyle.Default.FontSize(14).FontFamily(fontTH);
string waterMarkColor = "#f2f3fd";
var waterMarkStyle = TextStyle.Default.ExtraBold().LetterSpacing(0.2f).FontSize(64).FontColor(waterMarkColor);
container
.Page(page =>
{
page.Margin(10);
page.Header().Element(ComposeHeader);
page.Content().Element(ComposeContent);
page.Footer().AlignCenter().Text(text =>
{
text.CurrentPageNumber();
text.Span(" / ");
text.TotalPages();
});
page.Background().Rotate(-45)
.TranslateX(-355)
.TranslateY(360)
.Column(column =>
{
column.Item().AlignCenter().Text("THIS IS EASY CTF").Style(waterMarkStyle);
column.Item().AlignCenter().Text("Backgroud is not flag").Style(waterMarkStyle);
});
});
}
void ComposeHeader(IContainer container)
{
var titleStyle = TextStyle.Default.FontSize(20).Bold().FontFamily("Times New Roman");
//var smStyle1 = TextStyle.Default.FontFamily("Times New Roman").FontSize(10).FontColor(Colors.Blue.Darken4);
//var smStyle3 = TextStyle.Default.FontFamily("Times New Roman").FontSize(9).FontColor(Colors.Blue.Darken4);
//var titleStyle = TextStyle.Default.FontSize(24).Bold().FontFamily(fontTH);
var smStyle1 = TextStyle.Default.FontFamily("Times New Roman").FontSize(10).FontColor(Colors.Blue.Darken4);
var smStyle3 = TextStyle.Default.FontFamily("Times New Roman").FontSize(9).FontColor(Colors.Blue.Darken4);
var genStyle = TextStyle.Default.FontSize(15).FontFamily(fontTH);
container.PaddingVertical(25).PaddingHorizontal(25).Layers(layers =>
{
layers.PrimaryLayer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
column.Item().PaddingLeft(75).Text(text =>
{
});
column.Item().Height(14);
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(75).Text(text =>
{
});
});
});
}
void ComposeContent(IContainer container)
{
var gen0Style = TextStyle.Default.FontSize(40).FontFamily(fontTH).SemiBold();
string flag = "";
string s3 = " C H R IS";
container.PaddingVertical(90).PaddingHorizontal(120).Layers(layers =>
{
layers.PrimaryLayer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(67).Text(text =>
{
text.Span(flag + "\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(" S").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.93f);
});
column.Item().PaddingLeft(75).Text(text =>
{
//text.Span($"{SvConfig.AClinicAddressEn} ").Style(smStyle3).LineHeight(1.01f).LetterSpacing(0.05f);
//text.Span(SvConfig.AClinicAddressEnL2).Style(smStyle3).LineHeight(1.01f).LetterSpacing(0.08f);
});
column.Item().Height(14);
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(72).Text(text =>
{
text.Span("\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(" SAP").Style(gen0Style).LineHeight(1.01f).LetterSpacing(.39f);
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(219).Text(text =>
{
text.Span( "\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span("EA").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.00f);
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(211).Text(text =>
{
text.Span("\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(" Y ").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.00f);
});
});
layers.Layer().Column(column =>
{
column.Item().Height(7);
column.Item().PaddingLeft(47).Text(text =>
{
text.Span("\n").Style(gen0Style).LineHeight(1.01f).LetterSpacing(0f);
text.Span(s3).Style(gen0Style).LineHeight(1.01f).LetterSpacing(0.00f);
});
});
//layers.Layer().PaddingTop(5).Width(20, Unit.Millimetre).Image(imageData);
});
}
private int SectionCount()
{
int i = 0;
return i;
}
private int MeasureStringSizeFFormat(string st1,string fontst1,int font1size)
{
// Set up string.
string measureString = st1;
SysDwg.Font stringFont = new SysDwg.Font(fontst1, font1size);
// Set maximum width of string.
int stringWidth = 1000;
// Measure string.
SysDwg.SizeF stringSize = new SysDwg.SizeF();
//stringSize = e.Graphics.MeasureString(measureString, stringFont, layoutSize, newStringFormat);
//stringSize = e.Graphics.MeasureString(measureString, stringFont, stringWidth);
//https://learn.microsoft.com/en-us/dotnet/api/system.drawing.graphics.measurestring?view=windowsdesktop-8.0#system-drawing-graphics-measurestring(system-string-system-drawing-font-system-int32)
PrintDocument pd = new();
Graphics g = pd.PrinterSettings.CreateMeasurementGraphics();
stringSize = g.MeasureString(measureString, stringFont, stringWidth);
return (int)stringSize.Width;
}
}- To run this program, we need to edit the project properties (for someone, it's not necessary).
- Now, we can run the program.
And this is the result.
But, what we want is the PDF file.
- TO find the PDF file, we need to go to
/bin/Debug/net6.0-windows(it depends on frameworks version, and target os)
- The flag is
CTT23{C SHARP IS EASY}