wininet: Don't add the user agent header until HttpSendRequest is called.

dlls/wininet/http.c

@@ -1965,20 +1965,6 @@ HINTERNET WINAPI HTTP_HttpOpenRequestW(LPWININETHTTPSESSIONW lpwhs,
     if (NULL != hIC->lpszProxy && hIC->lpszProxy[0] != 0)
         HTTP_DealWithProxy( hIC, lpwhs, lpwhr );
 
-    if (hIC->lpszAgent)
-    {
-        WCHAR *agent_header;
-        static const WCHAR user_agent[] = {'U','s','e','r','-','A','g','e','n','t',':',' ','%','s','\r','\n',0 };
-
-        len = strlenW(hIC->lpszAgent) + strlenW(user_agent);
-        agent_header = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
-        sprintfW(agent_header, user_agent, hIC->lpszAgent );
-
-        HTTP_HttpAddRequestHeadersW(lpwhr, agent_header, strlenW(agent_header),
-                               HTTP_ADDREQ_FLAG_ADD);
-        HeapFree(GetProcessHeap(), 0, agent_header);
-    }
-
     Host = HTTP_GetHeader(lpwhr,szHost);
 
     len = lstrlenW(Host->lpszValue) + strlenW(szUrlForm);
@@ -3175,6 +3161,19 @@ BOOL WINAPI HTTP_HttpSendRequestW(LPWININETHTTPREQW lpwhr, LPCWSTR lpszHeaders,
         sprintfW(contentLengthStr, szContentLength, dwContentLength);
         HTTP_HttpAddRequestHeadersW(lpwhr, contentLengthStr, -1L, HTTP_ADDREQ_FLAG_ADD | HTTP_ADDHDR_FLAG_REPLACE);
     }
+    if (lpwhr->lpHttpSession->lpAppInfo->lpszAgent)
+    {
+        WCHAR *agent_header;
+        static const WCHAR user_agent[] = {'U','s','e','r','-','A','g','e','n','t',':',' ','%','s','\r','\n',0};
+        int len;
+
+        len = strlenW(lpwhr->lpHttpSession->lpAppInfo->lpszAgent) + strlenW(user_agent);
+        agent_header = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
+        sprintfW(agent_header, user_agent, lpwhr->lpHttpSession->lpAppInfo->lpszAgent);
+
+        HTTP_HttpAddRequestHeadersW(lpwhr, agent_header, strlenW(agent_header), HTTP_ADDREQ_FLAG_ADD_IF_NEW);
+        HeapFree(GetProcessHeap(), 0, agent_header);
+    }
 
     do
     {

dlls/wininet/tests/http.c

@@ -1686,6 +1686,62 @@ static void test_http_connection(void)
     CloseHandle(hThread);
 }
 
+static void test_user_agent_header(void)
+{
+    HINTERNET ses, con, req;
+    DWORD size, err;
+    char buffer[64];
+    BOOL ret;
+
+    ses = InternetOpen("Gizmo5", INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
+    ok(ses != NULL, "InternetOpen failed\n");
+
+    con = InternetConnect(ses, "www.winehq.org", 80, NULL, NULL, INTERNET_SERVICE_HTTP, 0, 0);
+    ok(con != NULL, "InternetConnect failed\n");
+
+    req = HttpOpenRequest(con, "GET", "/", "HTTP/1.0", NULL, NULL, 0, 0);
+    ok(req != NULL, "HttpOpenRequest failed\n");
+
+    size = sizeof(buffer);
+    ret = HttpQueryInfo(req, HTTP_QUERY_USER_AGENT | HTTP_QUERY_FLAG_REQUEST_HEADERS, buffer, &size, NULL);
+    err = GetLastError();
+    ok(!ret, "HttpQueryInfo succeeded\n");
+    ok(err == ERROR_HTTP_HEADER_NOT_FOUND, "expected ERROR_HTTP_HEADER_NOT_FOUND, got %u\n", err);
+
+    ret = HttpAddRequestHeaders(req, "User-Agent: Gizmo Project\r\n", ~0UL, HTTP_ADDREQ_FLAG_ADD_IF_NEW);
+    ok(ret, "HttpAddRequestHeaders succeeded\n");
+
+    size = sizeof(buffer);
+    ret = HttpQueryInfo(req, HTTP_QUERY_USER_AGENT | HTTP_QUERY_FLAG_REQUEST_HEADERS, buffer, &size, NULL);
+    err = GetLastError();
+    ok(ret, "HttpQueryInfo failed\n");
+    ok(err == ERROR_HTTP_HEADER_NOT_FOUND, "expected ERROR_HTTP_HEADER_NOT_FOUND, got %u\n", err);
+
+    InternetCloseHandle(req);
+
+    req = HttpOpenRequest(con, "GET", "/", "HTTP/1.0", NULL, NULL, 0, 0);
+    ok(req != NULL, "HttpOpenRequest failed\n");
+
+    size = sizeof(buffer);
+    ret = HttpQueryInfo(req, HTTP_QUERY_ACCEPT | HTTP_QUERY_FLAG_REQUEST_HEADERS, buffer, &size, NULL);
+    err = GetLastError();
+    ok(!ret, "HttpQueryInfo succeeded\n");
+    ok(err == ERROR_HTTP_HEADER_NOT_FOUND, "expected ERROR_HTTP_HEADER_NOT_FOUND, got %u\n", err);
+
+    ret = HttpAddRequestHeaders(req, "Accept: audio/*, image/*, text/*\r\nUser-Agent: Gizmo Project\r\n", ~0UL, HTTP_ADDREQ_FLAG_ADD_IF_NEW);
+    ok(ret, "HttpAddRequestHeaders failed\n");
+
+    buffer[0] = 0;
+    size = sizeof(buffer);
+    ret = HttpQueryInfo(req, HTTP_QUERY_ACCEPT | HTTP_QUERY_FLAG_REQUEST_HEADERS, buffer, &size, NULL);
+    ok(ret, "HttpQueryInfo failed: %u\n", GetLastError());
+    ok(!strcmp(buffer, "audio/*, image/*, text/*"), "got '%s' expected 'audio/*, image/*, text/*'\n", buffer);
+
+    InternetCloseHandle(req);
+    InternetCloseHandle(con);
+    InternetCloseHandle(ses);
+}
+
 #define STATUS_STRING(status) \
     memcpy(status_string[status], #status, sizeof(CHAR) * \
            (strlen(#status) < MAX_STATUS_NAME ? \
@@ -1759,4 +1815,5 @@ START_TEST(http)
     HttpSendRequestEx_test();
     HttpHeaders_test();
     test_http_connection();
+    test_user_agent_header();
 }