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FormUpdater.pas
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FormUpdater.pas
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unit FormUpdater;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.ComCtrls, Vcl.StdCtrls, Vcl.ExtCtrls, IdComponent, JSON;
type
TForm1 = class(TForm)
LabelAction: TLabel;
ProgressBarAction: TProgressBar;
LabelDetails: TLabel;
ProgressBarGlobal: TProgressBar;
procedure FormCreate(Sender: TObject);
private
{ Déclarations privées }
public
{ Déclarations publiques }
end;
TRoutineThread = class(TThread)
AppJSON: TJSONObject;
iii: integer;
protected
procedure OnWorkBegin(ASender: TObject; AWorkMode: TWorkMode; AWorkCountMax: Int64);
procedure OnWork(ASender: TObject; AWorkMode: TWorkMode; AWorkCount: Int64);
procedure OnWorkEnd(ASender: TObject; AWorkMode: TWorkMode);
procedure Execute; override;
end;
var
Form1: TForm1;
RoutineThread: TRoutineThread;
const
version = '1.0.1'; // Devra être récupéré via un fichier repère
implementation
uses IdHTTP, IdHashMessageDigest, idHash, System.Math;
{$R *.dfm}
{$region 'Routine Thread'}
{$region 'Routine Thread : OnWorkBegin'}
procedure TRoutineThread.OnWorkBegin(ASender: TObject; AWorkMode: TWorkMode; AWorkCountMax: Int64);
begin
if AWorkMode = wmRead then
begin
Form1.ProgressBarAction.Max := AWorkCountMax;
Form1.ProgressBarAction.Position := 0;
end;
end;
{$endregion}
{$region 'Routine Thread : OnWork'}
procedure TRoutineThread.OnWork(ASender: TObject; AWorkMode: TWorkMode; AWorkCount: Int64);
begin
if AWorkMode = wmRead then
begin
Form1.ProgressBarGlobal.Position := (StrToInt(AppJSON.GetValue('block').Value) * iii) + AWorkCount;
Form1.ProgressBarAction.Position := AWorkCount ;
end;
end;
{$endregion}
{$region 'Routine Thread : OnWorkEnd'}
procedure TRoutineThread.OnWorkEnd(ASender: TObject; AWorkMode: TWorkMode);
begin
if not (iii + 1 = Ceil(StrToInt(AppJSON.GetValue('size').Value) / StrToInt(AppJSON.GetValue('block').Value))) then
Form1.ProgressBarAction.Position := 0;
end;
{$endregion}
{$region 'Routine Thread : Execute'}
procedure TRoutineThread.Execute;
function MemoryStreamToString(M: TMemoryStream): string;
begin
SetString(Result, PAnsiChar(M.Memory), M.Size);
end;
function isUpToDate(localVersion: String; remoteVersion: String): Boolean;
begin
Result := false;
if localVersion = remoteVersion then Result := true;
end;
var
IdHTTP: TIdHTTP;
MS: TMemoryStream;
JSONObj: TJSONObject;
JSONApp: TJSONObject;
tempPath: String;
InStream, OutStream: TFileStream;
fragmentsCount: integer;
i: Integer;
procedure downloadFragment(fragment: TJSONObject);
var
filename: String;
function MD5(const fileName: String): String;
var
idmd5: TIdHashMessageDigest5;
fs: TFileStream;
begin
idmd5 := TIdHashMessageDigest5.Create;
fs := TFileStream.Create(fileName, fmOpenRead OR fmShareDenyWrite);
try
result := idmd5.HashStreamAsHex(fs);
finally
fs.Free;
idmd5.Free;
end;
end;
procedure download(fileName: String);
var
_IdHTTP: TIdHTTP;
_MS: TMemoryStream;
begin
_IdHTTP := TIdHTTP.Create(nil);
_MS := TMemoryStream.Create;
try
_IdHTTP.OnWorkBegin := OnWorkBegin;
_IdHTTP.OnWork := OnWork;
_IdHTTP.OnWorkEnd := OnWorkEnd;
Synchronize(procedure begin Form1.ProgressBarGlobal.Style := pbstNormal; end);
Synchronize(procedure begin Form1.ProgressBarAction.Style := pbstNormal; end);
Form1.ProgressBarGlobal.Position := StrToInt(JSONApp.GetValue('block').Value) * i;
Form1.LabelAction.Caption := 'Téléchargement des fragments ...';
Form1.LabelDetails.Caption := fragment.GetValue('part').Value + '/' + IntToStr(fragmentsCount);
_IdHTTP.Get('http://updater.to/HASH-HASH-HASH-HASH-HASH/' + fileName, _MS);
_MS.SaveToFile(tempPath + '\' + fileName);
finally
_IdHTTP.Free;
_MS.Free;
end;
end;
begin
filename := fragment.GetValue('part').Value + '.frag';
if FileExists(tempPath + '\' + filename) then
begin
// Vérification du hash
if not (Form1.LabelAction.Caption = 'Reprise du téléchargement ...') then
Form1.LabelAction.Caption := 'Reprise du téléchargement ...';
if not (MD5(tempPath + '\' + filename) = fragment.GetValue('hash').Value) then
begin
// Téléchargement
download(filename);
end
else
begin
Form1.ProgressBarGlobal.Position := StrToInt(JSONApp.GetValue('block').Value) * i + 1;
end;
end
else
begin
// Téléchargement
download(filename);
end;
end;
begin
Form1.LabelAction.Caption := 'Recherche de mise à jour ...';
Synchronize(procedure begin Form1.ProgressBarGlobal.Style := pbstMarquee; end);
Synchronize(procedure begin Form1.ProgressBarAction.Style := pbstMarquee; end);
IdHTTP := TIdHTTP.Create(nil);
MS := TMemoryStream.Create;
try
IdHTTP.Get('http://updater.to/HASH-HASH-HASH-HASH-HASH/update.json', MS);
JSONObj := TJSONObject.ParseJSONValue(MemoryStreamToString(MS)) as TJSONObject;
JSONApp := JSONObj.GetValue('app') as TJSONObject;
AppJSON := JSONApp;
if not isUpToDate(version, JSONApp.GetValue('version').Value) then
begin
tempPath := GetEnvironmentVariable('APPDATA') + '\' + JSONApp.GetValue('name').Value;
fragmentsCount := (JSONObj.GetValue('fragments') as TJSONArray).Count;
forcedirectories(tempPath);
Form1.ProgressBarGlobal.Max := StrToInt(JSONApp.GetValue('size').Value);
for i := 0 to (JSONObj.GetValue('fragments') as TJSONArray).Count - 1 do
begin
iii := i;
downloadFragment((JSONObj.GetValue('fragments') as TJSONArray).items[i] as TJSONObject);
end;
Form1.LabelAction.Caption := 'Préparation de la mise à jour ...';
OutStream := TFileStream.Create(tempPath + '\' + 'update.frag', fmCreate);
for i := 0 to (JSONObj.GetValue('fragments') as TJSONArray).Count - 1 do
begin
InStream := TFileStream.Create(tempPath + '\' + ((JSONObj.GetValue('fragments') as TJSONArray).items[i] as TJSONObject).GetValue('part').Value + '.frag', fmOpenRead);
try
OutStream.CopyFrom(InStream, InStream.Size);
finally
InStream.Free;
end;
end;
end;
Form1.LabelAction.Caption := 'Terminé !';
Form1.LabelDetails.Caption := 'Votre client est à jour !';
Synchronize(procedure begin Form1.ProgressBarGlobal.Style := pbstNormal; end);
Synchronize(procedure begin Form1.ProgressBarAction.Style := pbstNormal; end);
Form1.ProgressBarGlobal.Position := Form1.ProgressBarGlobal.Max;
Form1.ProgressBarAction.Position := Form1.ProgressBarAction.Max;
finally
IdHTTP.Free;
ms.Free;
OutStream.Free;
self.Terminate;
end;
end;
{$endregion}
{$endregion}
procedure TForm1.FormCreate(Sender: TObject);
begin
RoutineThread := TRoutineThread.Create(True);
RoutineThread.Priority := tpHighest;
RoutineThread.Start;
end;
end.