wininet: Set Content-Length header to zero if the verb is CONNECT.

dlls/wininet/http.c

@@ -4877,6 +4877,16 @@ static char *build_ascii_request( const WCHAR *str, void *data, DWORD data_len,
     return ret;
 }
 
+static void set_content_length_header( http_request_t *request, DWORD len, DWORD flags )
+{
+    static const WCHAR fmtW[] =
+        {'C','o','n','t','e','n','t','-','L','e','n','g','t','h',':',' ','%','u','\r','\n',0};
+    WCHAR buf[sizeof(fmtW)/sizeof(fmtW[0]) + 10];
+
+    sprintfW( buf, fmtW, len );
+    HTTP_HttpAddRequestHeadersW( request, buf, ~0u, flags );
+}
+
 /***********************************************************************
  *           HTTP_HttpSendRequestW (internal)
  *
@@ -4891,12 +4901,9 @@ static DWORD HTTP_HttpSendRequestW(http_request_t *request, LPCWSTR lpszHeaders,
 	DWORD dwHeaderLength, LPVOID lpOptional, DWORD dwOptionalLength,
 	DWORD dwContentLength, BOOL bEndRequest)
 {
-    static const WCHAR szContentLength[] =
-        { 'C','o','n','t','e','n','t','-','L','e','n','g','t','h',':',' ','%','l','i','\r','\n',0 };
     BOOL redirected = FALSE, secure_proxy_connect = FALSE, loop_next;
     LPWSTR requestString = NULL;
     INT responseLen, cnt;
-    WCHAR contentLengthStr[sizeof szContentLength/2 /* includes \r\n */ + 20 /* int */ ];
     DWORD res;
 
     TRACE("--> %p\n", request);
@@ -4912,8 +4919,7 @@ static DWORD HTTP_HttpSendRequestW(http_request_t *request, LPCWSTR lpszHeaders,
 
     if (dwContentLength || strcmpW(request->verb, szGET))
     {
-        sprintfW(contentLengthStr, szContentLength, dwContentLength);
-        HTTP_HttpAddRequestHeadersW(request, contentLengthStr, -1L, HTTP_ADDREQ_FLAG_ADD_IF_NEW);
+        set_content_length_header(request, dwContentLength, HTTP_ADDREQ_FLAG_ADD_IF_NEW);
         request->bytesToWrite = dwContentLength;
     }
     if (request->session->appInfo->agent)
@@ -5002,6 +5008,10 @@ static DWORD HTTP_HttpSendRequestW(http_request_t *request, LPCWSTR lpszHeaders,
         {
             static const WCHAR connectW[] = {'C','O','N','N','E','C','T',0};
             const WCHAR *target = request->server->host_port;
+
+            if (HTTP_GetCustomHeaderIndex(request, szContent_Length, 0, TRUE) >= 0)
+                set_content_length_header(request, 0, HTTP_ADDREQ_FLAG_REPLACE);
+
             requestString = build_request_header(request, connectW, target, g_szHttp1_1, TRUE);
         }
         else if (request->proxy && !(request->hdr.dwFlags & INTERNET_FLAG_SECURE))
@@ -5011,7 +5021,12 @@ static DWORD HTTP_HttpSendRequestW(http_request_t *request, LPCWSTR lpszHeaders,
             heap_free(url);
         }
         else
+        {
+            if (request->proxy && HTTP_GetCustomHeaderIndex(request, szContent_Length, 0, TRUE) >= 0)
+                set_content_length_header(request, dwContentLength, HTTP_ADDREQ_FLAG_REPLACE);
+
             requestString = build_request_header(request, request->verb, request->path, request->version, TRUE);
+        }
 
         TRACE("Request header -> %s\n", debugstr_w(requestString) );
 

dlls/wininet/tests/http.c

@@ -2106,6 +2106,13 @@ static DWORD CALLBACK server_thread(LPVOID param)
             else
                 send(c, notokmsg, sizeof notokmsg-1, 0);
         }
+        if (strstr(buffer, "CONNECT "))
+        {
+            if (!strstr(buffer, "Content-Length: 0"))
+                send(c, notokmsg, sizeof notokmsg-1, 0);
+            else
+                send(c, proxymsg, sizeof proxymsg-1, 0);
+        }
         if (strstr(buffer, "/test2"))
         {
             if (strstr(buffer, "Proxy-Authorization: Basic bWlrZToxMTAx"))
@@ -2806,6 +2813,25 @@ static void test_proxy_direct(int port)
     ok(r, "HttpQueryInfo failed\n");
     ok(!strcmp(buffer, "200"), "proxy code wrong\n");
 
+    InternetCloseHandle(hr);
+    InternetCloseHandle(hc);
+    InternetCloseHandle(hi);
+
+    sprintf(buffer, "localhost:%d\n", port);
+    hi = InternetOpenA("winetest", INTERNET_OPEN_TYPE_PROXY, buffer, NULL, 0);
+    ok(hi != NULL, "InternetOpen failed\n");
+
+    hc = InternetConnectA(hi, "test.winehq.org", port, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
+    ok(hc != NULL, "InternetConnect failed\n");
+
+    hr = HttpOpenRequestA(hc, "POST", "/test2", NULL, NULL, NULL, INTERNET_FLAG_SECURE, 0);
+    ok(hr != NULL, "HttpOpenRequest failed\n");
+
+    r = HttpSendRequestA(hr, NULL, 0, (char *)"data", sizeof("data"));
+    ok(r, "HttpSendRequest failed %u\n", GetLastError());
+
+    test_status_code(hr, 407);
+
 done:
     InternetCloseHandle(hr);
     InternetCloseHandle(hc);