// Created: 20/07/1997
// RCS-ID: $Id$
// Copyright: (c) 1997, 1998 Guilhem Lavaux
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "url.h"
#endif
#pragma hdrstop
#endif
-#ifndef WX_PRECOMP
-#endif
+#if wxUSE_URL
+
+#include "wx/string.h"
+#include "wx/list.h"
+#include "wx/utils.h"
+#include "wx/module.h"
+#include "wx/url.h"
#include <string.h>
#include <ctype.h>
-// wxWindows headers
-#include <wx/string.h>
-#include <wx/list.h>
-#include <wx/utils.h>
-
-// wxSocket header
-#include "wx/url.h"
-
-#if !USE_SHARED_LIBRARY
IMPLEMENT_CLASS(wxProtoInfo, wxObject)
IMPLEMENT_CLASS(wxURL, wxObject)
-#endif
// Protocols list
-wxProtoInfo *wxURL::g_protocols = NULL;
-wxHTTP wxURL::g_proxy;
+wxProtoInfo *wxURL::ms_protocols = NULL;
+
+// Enforce linking of protocol classes:
+USE_PROTOCOL(wxFileProto)
+
+#if wxUSE_SOCKETS
+USE_PROTOCOL(wxHTTP)
+USE_PROTOCOL(wxFTP)
+
+ wxHTTP *wxURL::ms_proxyDefault = NULL;
+ bool wxURL::ms_useDefaultProxy = false;
+#endif
-/////////////////////////////////////////////////////////////////
-// wxURL ////////////////////////////////////////////////////////
-/////////////////////////////////////////////////////////////////
+// --------------------------------------------------------------
+// wxURL
+// --------------------------------------------------------------
-/*
- * --------------------------------------------------------------
- * --------- wxURL CONSTRUCTOR DESTRUCTOR -----------------------
- * --------------------------------------------------------------
- */
+// --------------------------------------------------------------
+// --------- wxURL CONSTRUCTOR DESTRUCTOR -----------------------
+// --------------------------------------------------------------
wxURL::wxURL(const wxString& url)
{
- m_protocol = NULL;
- if (g_proxy.IsConnected()) {
- m_protocol = &g_proxy;
- m_protoname = "proxy";
- m_path = url;
- return;
- }
- m_url = url;
- m_error = wxURL_NOERR;
+ m_protocol = NULL;
+ m_error = wxURL_NOERR;
+ m_url = url;
+#if wxUSE_URL_NATIVE
+ m_nativeImp = CreateNativeImpObject();
+#endif
+
+#if wxUSE_SOCKETS
+ if ( ms_useDefaultProxy && !ms_proxyDefault )
+ {
+ SetDefaultProxy( wxGetenv(wxT("HTTP_PROXY")) );
+
+ if ( !ms_proxyDefault )
+ {
+ // don't try again
+ ms_useDefaultProxy = false;
+ }
+ }
+
+ m_useProxy = ms_proxyDefault != NULL;
+ m_proxy = ms_proxyDefault;
+#endif // wxUSE_SOCKETS
+
+ ParseURL();
}
bool wxURL::ParseURL()
{
wxString last_url = m_url;
- // Clean up
- CleanData();
+ // If the URL was already parsed (m_protocol != NULL), pass this section.
+ if (!m_protocol)
+ {
+ // Clean up
+ CleanData();
- // Extract protocol name
- if (!PrepProto(last_url)) {
- m_error = wxURL_SNTXERR;
- return FALSE;
- }
+ // Extract protocol name
+ if (!PrepProto(last_url))
+ {
+ m_error = wxURL_SNTXERR;
+ return false;
+ }
- // Find and create the protocol object
- if (!FetchProtocol()) {
- m_error = wxURL_NOPROTO;
- return FALSE;
- }
+ // Find and create the protocol object
+ if (!FetchProtocol())
+ {
+ m_error = wxURL_NOPROTO;
+ return false;
+ }
- // Do we need a host name ?
- if (m_protoinfo->m_needhost) {
- // Extract it
- if (!PrepHost(last_url)) {
- m_error = wxURL_SNTXERR;
- return FALSE;
+ // Do we need a host name ?
+ if (m_protoinfo->m_needhost)
+ {
+ // Extract it
+ if (!PrepHost(last_url))
+ {
+ m_error = wxURL_SNTXERR;
+ return false;
+ }
+ }
+
+ // Extract full path
+ if (!PrepPath(last_url))
+ {
+ m_error = wxURL_NOPATH;
+ return false;
}
}
+ // URL parse finished.
+
+#if wxUSE_SOCKETS
+ if (m_useProxy)
+ {
+ // destroy the previously created protocol as we'll be using m_proxy
+ delete m_protocol;
+
+ // Third, we rebuild the URL.
+ m_url = m_protoname + wxT(":");
+ if (m_protoinfo->m_needhost)
+ m_url = m_url + wxT("//") + m_hostname;
+
+ m_url += m_path;
- // Extract full path
- if (!PrepPath(last_url)) {
- m_error = wxURL_NOPATH;
- return FALSE;
+ // We initialize specific variables.
+ m_protocol = m_proxy; // FIXME: we should clone the protocol
}
+#endif
m_error = wxURL_NOERR;
- return TRUE;
+ return true;
}
void wxURL::CleanData()
{
- if (m_protoname != "proxy")
+#if wxUSE_SOCKETS
+ if (!m_useProxy)
+#endif
delete m_protocol;
}
wxURL::~wxURL()
{
- CleanData();
+ CleanData();
+#if wxUSE_SOCKETS
+ if (m_proxy && m_proxy != ms_proxyDefault)
+ delete m_proxy;
+#endif
+#if wxUSE_URL_NATIVE
+ delete m_nativeImp;
+#endif
}
-/*
- * --------------------------------------------------------------
- * --------- wxURL urls decoders --------------------------------
- * --------------------------------------------------------------
- */
+// --------------------------------------------------------------
+// --------- wxURL urls decoders --------------------------------
+// --------------------------------------------------------------
+
bool wxURL::PrepProto(wxString& url)
{
int pos;
// Find end
- pos = url.Find(':');
- if (pos == -1)
- return FALSE;
+ pos = url.Find(wxT(':'));
+ if (pos == wxNOT_FOUND)
+ return false;
m_protoname = url(0, pos);
url = url(pos+1, url.Length());
- return TRUE;
+ return true;
}
bool wxURL::PrepHost(wxString& url)
{
+ wxString temp_url;
int pos, pos2;
- if ((url.GetChar(0) != '/') || (url.GetChar(1) != '/'))
- return FALSE;
+ if ((url.GetChar(0) != wxT('/')) || (url.GetChar(1) != wxT('/')))
+ return false;
url = url(2, url.Length());
- pos = url.Find('/');
- if (pos == -1)
+ pos = url.Find(wxT('/'));
+ if (pos == wxNOT_FOUND)
pos = url.Length();
- pos2 = url.Find(':');
- if (pos2 != -1 && pos2 < pos) {
- m_servname = url(pos2, pos);
+ if (pos == 0)
+ return false;
+
+ temp_url = url(0, pos);
+ url = url(url.Find(wxT('/')), url.Length());
+
+ // Retrieve service number
+ pos2 = temp_url.Find(wxT(':'), true);
+ if (pos2 != wxNOT_FOUND && pos2 < pos)
+ {
+ m_servname = temp_url(pos2+1, pos);
if (!m_servname.IsNumber())
- return FALSE;
- pos2 = pos;
+ return false;
+ temp_url = temp_url(0, pos2);
}
- m_hostname = url(0, pos);
+ // Retrieve user and password.
+ pos2 = temp_url.Find(wxT('@'));
+ // Even if pos2 equals wxNOT_FOUND, this code is right.
+ m_hostname = temp_url(pos2+1, temp_url.Length());
+
+ m_user = wxT("");
+ m_password = wxT("");
+
+ if (pos2 == wxNOT_FOUND)
+ return true;
+
+ temp_url = temp_url(0, pos2);
+ pos2 = temp_url.Find(wxT(':'));
- url = url(url.Find('/'), url.Length());
+ if (pos2 == wxNOT_FOUND)
+ return false;
- return TRUE;
+ m_user = temp_url(0, pos2);
+ m_password = temp_url(pos2+1, url.Length());
+
+ return true;
}
bool wxURL::PrepPath(wxString& url)
{
if (url.Length() != 0)
- m_path = url;
+ m_path = ConvertToValidURI(url);
else
- m_path = "/";
- return TRUE;
+ m_path = wxT("/");
+ return true;
}
bool wxURL::FetchProtocol()
{
- wxProtoInfo *info = g_protocols;
+ wxProtoInfo *info = ms_protocols;
- while (info) {
- if (m_protoname == info->m_protoname) {
+ while (info)
+ {
+ if (m_protoname == info->m_protoname)
+ {
if (m_servname.IsNull())
m_servname = info->m_servname;
m_protoinfo = info;
m_protocol = (wxProtocol *)m_protoinfo->m_cinfo->CreateObject();
- wxSocketHandler::Master().Register(m_protocol);
- return TRUE;
+ return true;
}
info = info->next;
}
- return FALSE;
+ return false;
}
-/*
- * --------------------------------------------------------------
- * --------- wxURL get ------------------------------------------
- * --------------------------------------------------------------
- */
-wxInputStream *wxURL::GetInputStream(void)
-{
- wxIPV4address addr;
- wxInputStream *the_i_stream = NULL;
+// --------------------------------------------------------------
+// --------- wxURL get ------------------------------------------
+// --------------------------------------------------------------
+wxInputStream *wxURL::GetInputStream()
+{
if (!m_protocol)
- if (!ParseURL())
- return NULL;
-
- if (!m_protocol) {
+ {
m_error = wxURL_NOPROTO;
return NULL;
}
m_error = wxURL_NOERR;
- if (m_protoinfo->m_needhost) {
- if (!addr.Hostname(m_hostname)) {
+ if (m_user != wxT(""))
+ {
+ m_protocol->SetUser(m_user);
+ m_protocol->SetPassword(m_password);
+ }
+
+#if wxUSE_URL_NATIVE
+ // give the native implementation to return a better stream
+ // such as the native WinINet functionality under MS-Windows
+ if (m_nativeImp)
+ {
+ wxInputStream *rc;
+ rc = m_nativeImp->GetInputStream(this);
+ if (rc != 0)
+ return rc;
+ }
+ // else use the standard behaviour
+#endif // wxUSE_URL_NATIVE
+
+#if wxUSE_SOCKETS
+ wxIPV4address addr;
+
+ // m_protoinfo is NULL when we use a proxy
+ if (!m_useProxy && m_protoinfo->m_needhost)
+ {
+ if (!addr.Hostname(m_hostname))
+ {
m_error = wxURL_NOHOST;
return NULL;
}
addr.Service(m_servname);
- if (!m_protocol->Connect(addr)) {
+ if (!m_protocol->Connect(addr, true)) // Watcom needs the 2nd arg for some reason
+ {
m_error = wxURL_CONNERR;
return NULL;
}
}
+#endif
- the_i_stream = m_protocol->GetInputStream(m_path);
- if (!the_i_stream) {
+ // When we use a proxy, we have to pass the whole URL to it.
+ wxInputStream *the_i_stream =
+ (m_useProxy) ? m_protocol->GetInputStream(m_url) :
+ m_protocol->GetInputStream(m_path);
+
+ if (!the_i_stream)
+ {
m_error = wxURL_PROTOERR;
return NULL;
}
return the_i_stream;
}
+#if wxUSE_SOCKETS
void wxURL::SetDefaultProxy(const wxString& url_proxy)
{
- g_proxy.Close();
+ if ( !url_proxy )
+ {
+ if ( ms_proxyDefault )
+ {
+ ms_proxyDefault->Close();
+ delete ms_proxyDefault;
+ ms_proxyDefault = NULL;
+ }
+ }
+ else
+ {
+ wxString tmp_str = url_proxy;
+ int pos = tmp_str.Find(wxT(':'));
+ if (pos == wxNOT_FOUND)
+ return;
+
+ wxString hostname = tmp_str(0, pos),
+ port = tmp_str(pos+1, tmp_str.Length()-pos);
+ wxIPV4address addr;
+
+ if (!addr.Hostname(hostname))
+ return;
+ if (!addr.Service(port))
+ return;
+
+ if (ms_proxyDefault)
+ // Finally, when all is right, we connect the new proxy.
+ ms_proxyDefault->Close();
+ else
+ ms_proxyDefault = new wxHTTP();
+ ms_proxyDefault->Connect(addr, true); // Watcom needs the 2nd arg for some reason
+ }
+}
+
+void wxURL::SetProxy(const wxString& url_proxy)
+{
+ if ( !url_proxy )
+ {
+ if ( m_proxy && m_proxy != ms_proxyDefault )
+ {
+ m_proxy->Close();
+ delete m_proxy;
+ }
+
+ m_useProxy = false;
+ }
+ else
+ {
+ wxString tmp_str;
+ wxString hostname, port;
+ int pos;
+ wxIPV4address addr;
+
+ tmp_str = url_proxy;
+ pos = tmp_str.Find(wxT(':'));
+ // This is an invalid proxy name.
+ if (pos == wxNOT_FOUND)
+ return;
+
+ hostname = tmp_str(0, pos);
+ port = tmp_str(pos+1, tmp_str.Length()-pos);
+
+ addr.Hostname(hostname);
+ addr.Service(port);
+
+ // Finally, create the whole stuff.
+ if (m_proxy && m_proxy != ms_proxyDefault)
+ delete m_proxy;
+ m_proxy = new wxHTTP();
+ m_proxy->Connect(addr, true); // Watcom needs the 2nd arg for some reason
+
+ CleanData();
+ // Reparse url.
+ m_useProxy = true;
+ ParseURL();
+ }
+}
+#endif // wxUSE_SOCKETS
+
+wxString wxURL::ConvertToValidURI(const wxString& uri, const wxChar* delims)
+{
+ wxString out_str;
+ wxString hexa_code;
+ size_t i;
- if (url_proxy.IsNull())
- return;
+ for (i = 0; i < uri.Len(); i++)
+ {
+ wxChar c = uri.GetChar(i);
- wxString tmp_str = url_proxy;
- int pos = tmp_str.Find(':');
- wxString hostname = tmp_str(0, pos),
- port = tmp_str(pos, tmp_str.Length()-pos);
- wxIPV4address addr;
+ if (c == wxT(' '))
+ {
+ // GRG, Apr/2000: changed to "%20" instead of '+'
- addr.Hostname(hostname);
- addr.Service(port);
-
- g_proxy.Connect(addr);
+ out_str += wxT("%20");
+ }
+ else
+ {
+ // GRG, Apr/2000: modified according to the URI definition (RFC 2396)
+ //
+ // - Alphanumeric characters are never escaped
+ // - Unreserved marks are never escaped
+ // - Delimiters must be escaped if they appear within a component
+ // but not if they are used to separate components. Here we have
+ // no clear way to distinguish between these two cases, so they
+ // are escaped unless they are passed in the 'delims' parameter
+ // (allowed delimiters).
+
+ static const wxChar marks[] = wxT("-_.!~*()'");
+
+ if ( !wxIsalnum(c) && !wxStrchr(marks, c) && !wxStrchr(delims, c) )
+ {
+ hexa_code.Printf(wxT("%%%02X"), c);
+ out_str += hexa_code;
+ }
+ else
+ {
+ out_str += c;
+ }
+ }
+ }
+
+ return out_str;
}
-void wxURL::SetProxy(const wxString& url_proxy)
+wxString wxURL::ConvertFromURI(const wxString& uri)
{
- if (url_proxy.IsNull()) {
- m_proxy.Close();
- return;
+ wxString new_uri;
+
+ size_t i = 0;
+ while (i < uri.Len())
+ {
+ int code;
+ if (uri[i] == wxT('%'))
+ {
+ i++;
+ if (uri[i] >= wxT('A') && uri[i] <= wxT('F'))
+ code = (uri[i] - wxT('A') + 10) * 16;
+ else if (uri[i] >= wxT('a') && uri[i] <= wxT('f'))
+ code = (uri[i] - wxT('a') + 10) * 16;
+ else
+ code = (uri[i] - wxT('0')) * 16;
+
+ i++;
+ if (uri[i] >= wxT('A') && uri[i] <= wxT('F'))
+ code += (uri[i] - wxT('A')) + 10;
+ else if (uri[i] >= wxT('a') && uri[i] <= wxT('f'))
+ code += (uri[i] - wxT('a')) + 10;
+ else
+ code += (uri[i] - wxT('0'));
+
+ i++;
+ new_uri += (wxChar)code;
+ continue;
+ }
+ new_uri += uri[i];
+ i++;
}
+ return new_uri;
+}
- CleanData();
+// ----------------------------------------------------------------------
+// A module which deletes the default proxy if we created it
+// ----------------------------------------------------------------------
- wxString tmp_str;
- wxString hostname, port;
- int pos;
- wxIPV4address addr;
+#if wxUSE_SOCKETS
- tmp_str = url_proxy;
- pos = tmp_str.Find(':');
- hostname = tmp_str(0, pos);
- port = tmp_str(pos, tmp_str.Length()-pos);
+class wxURLModule : public wxModule
+{
+public:
+ virtual bool OnInit();
+ virtual void OnExit();
+
+private:
+ DECLARE_DYNAMIC_CLASS(wxURLModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxURLModule, wxModule)
- addr.Hostname(hostname);
- addr.Service(port);
+bool wxURLModule::OnInit()
+{
+ // env var HTTP_PROXY contains the address of the default proxy to use if
+ // set, but don't try to create this proxy right now because it will slow
+ // down the program startup (especially if there is no DNS server
+ // available, in which case it may take up to 1 minute)
+
+ if ( getenv("HTTP_PROXY") )
+ {
+ wxURL::ms_useDefaultProxy = true;
+ }
- m_proxy.Connect(addr);
+ return true;
+}
- m_protocol = &m_proxy;
- m_protoname = "proxy";
- m_path = url_proxy;
+void wxURLModule::OnExit()
+{
+ delete wxURL::ms_proxyDefault;
+ wxURL::ms_proxyDefault = NULL;
}
+
+#endif // wxUSE_SOCKETS
+
+#endif // wxUSE_URL
+
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