added /NOIEPROXY (based on memph's code)

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@3643 212acab6-be3b-0410-9dea-997c60f758d6

Contrib/NSISdl/ReadMe.txt

@@ -43,6 +43,13 @@ NSISdl reads the proxy configuration from Internet Explorer's registry key
 under HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings. It
 reads and parses ProxyEnable and ProxyServer.
 
+If you don't want NSISdl to use Internet Explorer's settings, use the
+/NOIEPROXY flag. /NOIEPROXY should be used after /TRANSLATE and
+/TIMEOUT. For example:
+
+NSISdl::download /NOIEPROXY http://www.domain.com/file localfile.exe
+NSISdl::download /TIMEOUT=30000 /NOIEPROXY http://www.domain.com/file localfile.exe
+
 TRANSLATE
 ---------
 

Contrib/NSISdl/nsisdl.cpp

@@ -232,6 +232,7 @@ __declspec(dllexport) void download (HWND   parent,
   char filename[1024];
   BOOL bSuccess=FALSE;
   int timeout_ms=30000;
+  int getieproxy=1;
 
   char *error=NULL;
 
@@ -273,6 +274,10 @@ __declspec(dllexport) void download (HWND   parent,
     timeout_ms=my_atoi(url+9);
     popstring(url);
   }
+  if (!lstrcmpi(url, "/NOIEPROXY")) {
+    getieproxy=0;
+    popstring(url);
+  }
   popstring(filename);
 
   HANDLE hFile = CreateFile(filename,GENERIC_WRITE,FILE_SHARE_READ,NULL,CREATE_ALWAYS,0,NULL);
@@ -311,7 +316,7 @@ __declspec(dllexport) void download (HWND   parent,
       char *p=NULL;
 
       HKEY hKey;
-      if (RegOpenKeyEx(HKEY_CURRENT_USER,"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",0,KEY_READ,&hKey) == ERROR_SUCCESS)
+      if (getieproxy && RegOpenKeyEx(HKEY_CURRENT_USER,"Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings",0,KEY_READ,&hKey) == ERROR_SUCCESS)
       {
         DWORD l = 4;
         DWORD t;