static Task <WebResponse> ExecHttpRequestInternalAsync(Context ctx, CURLResource ch, Uri uri)
{
var req = WebRequest.CreateHttp(uri);
// setup request:
Debug.Assert(ch.Method != null, "Method == null");
req.Method = ch.Method;
req.AllowAutoRedirect = ch.FollowLocation && ch.MaxRedirects != 0;
req.Timeout = ch.Timeout <= 0 ? System.Threading.Timeout.Infinite : ch.Timeout;
req.ContinueTimeout = ch.ContinueTimeout;
req.Accept = "*/*"; // default value
if (req.AllowAutoRedirect)
{
// equal or less than 0 will cause exception
req.MaximumAutomaticRedirections = ch.MaxRedirects < 0 ? int.MaxValue : ch.MaxRedirects;
}
if (ch.CookieContainer != null)
{
if (ch.Result != null)
{
// pass cookies from previous response to the request
AddCookies(ch.Result.Cookies, ch.CookieContainer);
}
req.CookieContainer = ch.CookieContainer;
}
//req.AutomaticDecompression = (DecompressionMethods)~0; // NOTICE: this nullify response Content-Length and Content-Encoding
if (ch.CookieHeader != null)
{
TryAddCookieHeader(req, ch.CookieHeader);
}
if (ch.Username != null)
{
req.Credentials = new NetworkCredential(ch.Username, ch.Password ?? string.Empty);
}
// TODO: certificate
if (!string.IsNullOrEmpty(ch.ProxyType) && !string.IsNullOrEmpty(ch.ProxyHost))
{
req.Proxy = new WebProxy($"{ch.ProxyType}://{ch.ProxyHost}:{ch.ProxyPort}")
{
Credentials = string.IsNullOrEmpty(ch.ProxyUsername)
? null
: new NetworkCredential(ch.ProxyUsername, ch.ProxyPassword ?? string.Empty)
};
}
else
{
// by default, curl does not go through system proxy
req.Proxy = s_DefaultProxy.Value;
}
//
ch.ApplyOptions(ctx, req);
// make request:
// GET, HEAD
if (string.Equals(ch.Method, WebRequestMethods.Http.Get, StringComparison.OrdinalIgnoreCase) ||
string.Equals(ch.Method, WebRequestMethods.Http.Head, StringComparison.OrdinalIgnoreCase))
{
// nothing to do
}
// POST
else if (string.Equals(ch.Method, WebRequestMethods.Http.Post, StringComparison.OrdinalIgnoreCase))
{
ProcessPost(ctx, req, ch);
}
// PUT
else if (string.Equals(ch.Method, WebRequestMethods.Http.Put, StringComparison.OrdinalIgnoreCase))
{
ProcessPut(req, ch);
}
// DELETE, or custom method
else
{
// custom method, nothing to do
}
//
if (ch.StoreRequestHeaders)
{
ch.RequestHeaders = HttpHeaders.HeaderString(req); // and restore it when constructing CURLResponse
}
//
return(req.GetResponseAsync());
}
static PhpValue ProcessResponse(Context ctx, CURLResource ch, HttpWebResponse response)
{
// in case we are returning the response value
var returnstream = ch.ProcessingResponse.Method == ProcessMethodEnum.RETURN
? new MemoryStream()
: null;
// handle headers
if (!ch.ProcessingHeaders.IsEmpty)
{
switch (ch.ProcessingHeaders.Method)
{
case ProcessMethodEnum.RETURN:
case ProcessMethodEnum.STDOUT:
(returnstream ?? ctx.OutputStream).Write(response.Headers.ToByteArray());
break;
case ProcessMethodEnum.FILE:
ch.ProcessingHeaders.Stream.RawStream.Write(response.Headers.ToByteArray());
break;
case ProcessMethodEnum.USER:
// pass headers one by one,
// in original implementation we should pass them as they are read from socket:
ch.ProcessingHeaders.User.Invoke(ctx, new[] {
PhpValue.FromClr(ch),
PhpValue.Create(HttpHeaders.StatusHeader(response) + HttpHeaders.HeaderSeparator)
});
for (int i = 0; i < response.Headers.Count; i++)
{
// header
ch.ProcessingHeaders.User.Invoke(ctx, new[] {
PhpValue.FromClr(ch),
PhpValue.Create(response.Headers[i] + HttpHeaders.HeaderSeparator),
});
}
// \r\n
ch.ProcessingHeaders.User.Invoke(ctx, new[] {
PhpValue.FromClr(ch),
PhpValue.Create(HttpHeaders.HeaderSeparator)
});
break;
default:
Debug.Fail("Unexpected ProcessingHeaders " + ch.ProcessingHeaders.Method);
break;
}
}
var stream = response.GetResponseStream();
// read into output stream:
switch (ch.ProcessingResponse.Method)
{
case ProcessMethodEnum.STDOUT: stream.CopyTo(ctx.OutputStream); break;
case ProcessMethodEnum.RETURN: stream.CopyTo(returnstream); break;
case ProcessMethodEnum.FILE: stream.CopyTo(ch.ProcessingResponse.Stream.RawStream); break;
case ProcessMethodEnum.USER:
if (response.ContentLength != 0)
{
// preallocate a buffer to read to,
// this should be according to PHP's behavior and slightly more effective than memory stream
byte[] buffer = new byte[ch.BufferSize > 0 ? ch.BufferSize : 2048];
int bufferread;
while ((bufferread = stream.Read(buffer, 0, buffer.Length)) > 0)
{
ch.ProcessingResponse.User.Invoke(ctx, new[]
{
PhpValue.FromClr(ch),
PhpValue.Create(new PhpString(buffer.AsSpan(0, bufferread).ToArray())), // clone the array and pass to function
});
}
}
break;
case ProcessMethodEnum.IGNORE: break;
}
//
return((returnstream != null)
? PhpValue.Create(new PhpString(returnstream.ToArray()))
: PhpValue.True);
}
static Task <WebResponse> ExecHttpRequestInternalAsync(Context ctx, CURLResource ch, Uri uri)
{
var req = WebRequest.CreateHttp(uri);
// setup request:
Debug.Assert(ch.Method != null, "Method == null");
req.Method = ch.Method;
req.AllowAutoRedirect = ch.FollowLocation;
req.Timeout = ch.Timeout;
req.ContinueTimeout = ch.ContinueTimeout;
req.MaximumAutomaticRedirections = ch.MaxRedirects;
if (ch.UserAgent != null)
{
req.UserAgent = ch.UserAgent;
}
if (ch.ProtocolVersion != null)
{
req.ProtocolVersion = ch.ProtocolVersion;
}
if (ch.Referer != null)
{
req.Referer = ch.Referer;
}
if (ch.Headers != null)
{
AddHeaders(req, ch.Headers);
}
if (ch.CookieHeader != null)
{
TryAddCookieHeader(req, ch.CookieHeader);
}
if (ch.CookieFileSet)
{
req.CookieContainer = new CookieContainer();
}
if (ch.Username != null)
{
req.Credentials = new NetworkCredential(ch.Username, ch.Password ?? string.Empty);
}
if (ch.AcceptEncoding != null)
{
req.Accept = ch.AcceptEncoding;
}
// TODO: certificate
// TODO: proxy
// make request:
// GET, HEAD
if (string.Equals(ch.Method, WebRequestMethods.Http.Get, StringComparison.OrdinalIgnoreCase) ||
string.Equals(ch.Method, WebRequestMethods.Http.Head, StringComparison.OrdinalIgnoreCase))
{
// nothing to do
}
// POST
else if (string.Equals(ch.Method, WebRequestMethods.Http.Post, StringComparison.OrdinalIgnoreCase))
{
ProcessPost(ctx, req, ch);
}
// PUT
else if (string.Equals(ch.Method, WebRequestMethods.Http.Put, StringComparison.OrdinalIgnoreCase))
{
ProcessPut(req, ch);
}
// DELETE, or custom method
else
{
// custom method, nothing to do
}
//
if (ch.StoreRequestHeaders)
{
ch.RequestHeaders = HttpHeaders.HeaderString(req); // and restore it when constructing CURLResponse
}
//
return(req.GetResponseAsync());
}
