From 31f74f65b082f33402f3e59ca04ed36461c0f1c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Van=20Canneyt?= <michael@freepascal.org>
Date: Sat, 2 Apr 2022 10:17:51 +0200
Subject: [PATCH] * CGI demo for css minimizer/classname extractor

---
 packages/fcl-css/examples/fpcss.lpi | 45 ++++++++++++++
 packages/fcl-css/examples/fpcss.pp  | 94 +++++++++++++++++++++++++++++
 2 files changed, 139 insertions(+)
 create mode 100644 packages/fcl-css/examples/fpcss.lpi
 create mode 100644 packages/fcl-css/examples/fpcss.pp

diff --git a/packages/fcl-css/examples/fpcss.lpi b/packages/fcl-css/examples/fpcss.lpi
new file mode 100644
index 0000000000..5f598d1234
--- /dev/null
+++ b/packages/fcl-css/examples/fpcss.lpi
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CONFIG>
+  <ProjectOptions>
+    <Version Value="12"/>
+    <General>
+      <Flags>
+        <MainUnitHasCreateFormStatements Value="False"/>
+        <MainUnitHasTitleStatement Value="False"/>
+        <MainUnitHasScaledStatement Value="False"/>
+        <UseDefaultCompilerOptions Value="True"/>
+      </Flags>
+      <SessionStorage Value="InProjectDir"/>
+      <Title Value="fpcss"/>
+      <UseAppBundle Value="False"/>
+      <ResourceType Value="res"/>
+    </General>
+    <BuildModes>
+      <Item Name="Default" Default="True"/>
+    </BuildModes>
+    <PublishOptions>
+      <Version Value="2"/>
+      <UseFileFilters Value="True"/>
+    </PublishOptions>
+    <RunParams>
+      <FormatVersion Value="2"/>
+    </RunParams>
+    <Units>
+      <Unit>
+        <Filename Value="fpcss.pp"/>
+        <IsPartOfProject Value="True"/>
+      </Unit>
+    </Units>
+  </ProjectOptions>
+  <CompilerOptions>
+    <Version Value="11"/>
+    <Target>
+      <Filename Value="fpcss.cgi" ApplyConventions="False"/>
+    </Target>
+    <SearchPaths>
+      <IncludeFiles Value="$(ProjOutDir)"/>
+      <OtherUnitFiles Value="../src"/>
+      <UnitOutputDirectory Value="lib/$(TargetCPU)-$(TargetOS)"/>
+    </SearchPaths>
+  </CompilerOptions>
+</CONFIG>
diff --git a/packages/fcl-css/examples/fpcss.pp b/packages/fcl-css/examples/fpcss.pp
new file mode 100644
index 0000000000..c1d12720d5
--- /dev/null
+++ b/packages/fcl-css/examples/fpcss.pp
@@ -0,0 +1,94 @@
+{ Demo for CSS engine : CGI to minimize a CSS file or extract class names
+
+  Copyright (C) 2022- michael Van Canneyt michael@freepascal.org
+
+  This source is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as
+  published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+
+  This code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  A copy of the GNU General Public License is available on the World Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can
+  also obtain it by writing to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA.
+}
+
+program fpcss;
+
+{ $DEFINE USEHTTPAPP}
+
+uses
+  SysUtils, classes, fpcssutils,
+  {$IFDEF USEHTTPAPP} fphttpapp{$ELSE} fpcgi {$ENDIF},
+  httpdefs, httproute;
+
+Function GetCSS(aRequest : TRequest) : TStream;
+
+begin
+  Result:=TStringStream.Create(aRequest.Content);
+end;
+
+procedure DoExtract(ARequest: TRequest; AResponse: TResponse);
+
+Var
+  S : TStream;
+  aList : TStrings;
+  Utils : TCSSUtils;
+
+begin  
+  S:=Nil;  
+  aList:=Nil;
+  Utils:=TCSSUtils.Create(Nil);
+  try
+    S:=GetCSS(aRequest);
+    aList:=TstringList.Create;
+    Utils.ExtractClassNames(S,aList);
+    aResponse.ContentLength:=Length(aResponse.Content);
+    aResponse.ContentType:='text/text';
+    aResponse.Content:=aList.Text;
+    aResponse.SendResponse;
+  finally
+    aList.Free;
+    Utils.Free;
+    S.Free;
+  end;
+end;
+
+
+procedure DoMinimize(ARequest: TRequest; AResponse: TResponse);
+
+Var
+  Sin,SOut : TStream;
+  Utils : TCSSUtils;
+
+begin  
+  Sin:=Nil;  
+  Sout:=Nil;
+  Utils:=TCSSUtils.Create(Nil);
+  try
+    Sin:=GetCSS(aRequest);
+    SOut:=TStringStream.Create;
+    Utils.Minimize(Sin,Sout);
+    aResponse.ContentLength:=Length(aResponse.Content);
+    aResponse.ContentType:='text/text';
+    aResponse.ContentStream:=SOut;
+    aResponse.ContentLength:=Sout.Size;
+    aResponse.SendResponse;
+  finally
+    Sout.Free;
+    Utils.Free;
+    Sin.Free;
+  end;
+end;
+
+
+begin
+  HTTPRouter.RegisterRoute('minimize',rmPost,@DoMinimize);
+  HTTPRouter.RegisterRoute('classnames',rmPost,@DoExtract);
+  {$IFDEF USEHTTPAPP}
+  Application.Port:=8080;
+  {$ENDIF}
+  Application.Title:='CSS utils CGI';
+  Application.Initialize;
+  Application.Run;
+end.
+