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{$mode objfpc}
{$h+}
unit pkglibcurl;
interface
uses Classes,pkgdownload;
Type
TLibCurlDownloader = Class(TBaseDownloader)
Protected
Procedure LibCurlDownload(Const URL : String; Dest : TStream);
Procedure FTPDownload(Const URL : String; Dest : TStream); override;
Procedure HTTPDownload(Const URL : String; Dest : TStream); override;
end;
implementation
uses sysutils,uriparser,libcurl,pkgmessages,pkgglobals,unixtype;
Function DoStreamWrite(Ptr : Pointer; Size : size_t; nmemb: size_t; Data : Pointer) : size_t;cdecl;
begin
Result:=TStream(Data).Write(Ptr^,Size*nmemb);
end;
Procedure TLibCurlDownloader.LibCurlDownload(Const URL : String; Dest : TStream);
Var
HCurl : PCurl;
ErrorBuffer : Array[0..CURL_ERROR_SIZE] of char;
begin
hCurl:= curl_easy_init;
if Assigned(hCurl) then
Try
curl_easy_setopt(hCurl,CURLOPT_ERRORBUFFER, [@ErrorBuffer]);
curl_easy_setopt(hCurl,CURLOPT_URL,[Pchar(URL)]);
curl_easy_setopt(hCurl,CURLOPT_WRITEFUNCTION,[@DoStreamWrite]);
curl_easy_setopt(hCurl,CURLOPT_WRITEDATA,[Pointer(Dest)]);
if Ord(curl_easy_perform(hCurl))<>0 then
Error(SErrDownloadFailed,[StrPas(@ErrorBuffer)])
Finally
curl_easy_cleanup(hCurl);
end
else
Raise Exception.Create('Failed to initialize Curl');
end;
Procedure TLibCurlDownloader.FTPDownload(Const URL : String; Dest : TStream);
begin
LibCurlDownload(URL,Dest);
end;
Procedure TLibCurlDownloader.HTTPDownload(Const URL : String; Dest : TStream);
begin
LibCurlDownload(URL,Dest);
end;
initialization
DownloaderClass:=TLibCurlDownloader;
end.
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