X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f61815af20ebb943000d36ea01489f6115e4061c..4c420a80e0fb11511b235411875ba5d3e0eb8492:/src/common/url.cpp

diff --git a/src/common/url.cpp b/src/common/url.cpp
index 307bf7627f..9e02d03dca 100644
--- a/src/common/url.cpp
+++ b/src/common/url.cpp
@@ -6,10 +6,10 @@
 // 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
 
@@ -20,24 +20,33 @@
 #pragma hdrstop
 #endif
 
-#if wxUSE_SOCKETS
+#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>
 
-#include <wx/string.h>
-#include <wx/list.h>
-#include <wx/utils.h>
-#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 = NULL;
+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
@@ -49,83 +58,116 @@ wxHTTP *wxURL::g_proxy = NULL;
 
 wxURL::wxURL(const wxString& url)
 {
-  m_protocol = NULL;
-  m_error = wxURL_NOERR;
-  m_url = url;
-  m_useProxy = (g_proxy != NULL);
-  m_proxy = g_proxy;
-  ParseURL();
+    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;
 
- // If the URL was already parsed (so m_protocol != NULL), we pass this section.
-  if (!m_protocol) {
-
+  // 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)) {
+    if (!PrepProto(last_url))
+    {
       m_error = wxURL_SNTXERR;
-      return FALSE;
+      return false;
     }
 
     // Find and create the protocol object
-    if (!FetchProtocol()) {
+    if (!FetchProtocol())
+    {
       m_error = wxURL_NOPROTO;
-      return FALSE;
+      return false;
     }
 
     // Do we need a host name ?
-    if (m_protoinfo->m_needhost) {
+    if (m_protoinfo->m_needhost)
+    {
       // Extract it
-      if (!PrepHost(last_url)) {
+      if (!PrepHost(last_url))
+      {
         m_error = wxURL_SNTXERR;
-        return FALSE;
+        return false;
       }
     }
 
     // Extract full path
-    if (!PrepPath(last_url)) {
+    if (!PrepPath(last_url))
+    {
       m_error = wxURL_NOPATH;
-      return FALSE;
+      return false;
     }
   }
   // URL parse finished.
 
-  if (m_useProxy) {
-    // We destroy the newly created protocol.
-    CleanData();
+#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 + _T(":");
+    m_url = m_protoname + wxT(":");
     if (m_protoinfo->m_needhost)
-      m_url = m_url + _T("//") + m_hostname;
+      m_url = m_url + wxT("//") + m_hostname;
 
     m_url += m_path;
 
     // 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 wxUSE_SOCKETS
   if (!m_useProxy)
+#endif
     delete m_protocol;
 }
 
 wxURL::~wxURL()
 {
-  CleanData();
-  if (m_proxy && m_proxy != g_proxy)
-    delete m_proxy;
+    CleanData();
+#if wxUSE_SOCKETS
+    if (m_proxy && m_proxy != ms_proxyDefault)
+        delete m_proxy;
+#endif
+#if wxUSE_URL_NATIVE
+    delete m_nativeImp;
+#endif
 }
 
 // --------------------------------------------------------------
@@ -137,15 +179,15 @@ bool wxURL::PrepProto(wxString& url)
   int pos;
 
   // Find end
-  pos = url.Find(_T(':'));
-  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)
@@ -153,51 +195,52 @@ 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(_T('/'));
-  if (pos == -1)
+  pos = url.Find(wxT('/'));
+  if (pos == wxNOT_FOUND)
     pos = url.Length();
 
   if (pos == 0)
-    return FALSE;
+    return false;
 
   temp_url = url(0, pos);
-  url = url(url.Find(_T('/')), url.Length());
+  url = url(url.Find(wxT('/')), url.Length());
 
   // Retrieve service number
-  pos2 = temp_url.Find(_T(':'), TRUE);
-  if (pos2 != -1 && pos2 < pos) {
+  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;
+      return false;
     temp_url = temp_url(0, pos2);
   }
 
   // Retrieve user and password.
-  pos2 = temp_url.Find(_T('@'));
-  // Even if pos2 equals -1, this code is right.
+  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 = _T("");
-  m_password = _T("");
+  m_user = wxT("");
+  m_password = wxT("");
 
-  if (pos2 == -1)
-    return TRUE;
+  if (pos2 == wxNOT_FOUND)
+    return true;
 
   temp_url = temp_url(0, pos2);
-  pos2 = temp_url.Find(_T(':'));
+  pos2 = temp_url.Find(wxT(':'));
 
-  if (pos2 == -1)
-    return FALSE;
+  if (pos2 == wxNOT_FOUND)
+    return false;
 
   m_user = temp_url(0, pos2);
   m_password = temp_url(pos2+1, url.Length());
 
-  return TRUE;
+  return true;
 }
 
 bool wxURL::PrepPath(wxString& url)
@@ -205,71 +248,91 @@ bool wxURL::PrepPath(wxString& url)
   if (url.Length() != 0)
     m_path = ConvertToValidURI(url);
   else
-    m_path = _T("/");
-  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();
-      return TRUE;
+      return true;
     }
     info = info->next;
   }
-  return FALSE;
+  return false;
 }
 
 // --------------------------------------------------------------
 // --------- wxURL get ------------------------------------------
 // --------------------------------------------------------------
 
-wxInputStream *wxURL::GetInputStream(void)
+wxInputStream *wxURL::GetInputStream()
 {
-  wxIPV4address addr;
-  wxInputStream *the_i_stream = NULL;
-
-  if (!m_protocol) {
+  if (!m_protocol)
+  {
     m_error = wxURL_NOPROTO;
     return NULL;
   }
 
   m_error = wxURL_NOERR;
-  if (m_user != _T("")) {
+  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)) {
+  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, TRUE)) // Watcom needs the 2nd arg for some reason
+    if (!m_protocol->Connect(addr, true)) // Watcom needs the 2nd arg for some reason
     {
       m_error = wxURL_CONNERR;
       return NULL;
     }
   }
+#endif
 
   // When we use a proxy, we have to pass the whole URL to it.
-  if (m_useProxy)
-    the_i_stream = m_protocol->GetInputStream(m_url);
-  else
-    the_i_stream = m_protocol->GetInputStream(m_path);
+  wxInputStream *the_i_stream =
+       (m_useProxy) ? m_protocol->GetInputStream(m_url) :
+                      m_protocol->GetInputStream(m_path);
 
-  if (!the_i_stream) {
+  if (!the_i_stream)
+  {
     m_error = wxURL_PROTOERR;
     return NULL;
   }
@@ -277,99 +340,209 @@ wxInputStream *wxURL::GetInputStream(void)
   return the_i_stream;
 }
 
+#if wxUSE_SOCKETS
 void wxURL::SetDefaultProxy(const wxString& url_proxy)
 {
-  if (url_proxy.IsNull()) {
-    g_proxy->Close();
-    delete g_proxy;
-    g_proxy = NULL;
-    return;
+  if ( !url_proxy )
+  {
+      if ( ms_proxyDefault )
+      {
+          ms_proxyDefault->Close();
+          delete ms_proxyDefault;
+          ms_proxyDefault = NULL;
+      }
   }
-
-  wxString tmp_str = url_proxy;
-  int pos = tmp_str.Find(_T(':'));
-  if (pos == -1)
-    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 (g_proxy)
-  // Finally, when all is right, we connect the new proxy.
-    g_proxy->Close();
   else
-    g_proxy = new wxHTTP();
-  g_proxy->Connect(addr, TRUE); // Watcom needs the 2nd arg for some reason
+  {
+      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.IsNull()) {
-    if (m_proxy) {
-      m_proxy->Close();
-      delete m_proxy;
-    }
-    m_useProxy = FALSE;
-    return;
-  }
+    if ( !url_proxy )
+    {
+        if ( m_proxy && m_proxy != ms_proxyDefault )
+        {
+            m_proxy->Close();
+            delete m_proxy;
+        }
 
-  wxString tmp_str;
-  wxString hostname, port;
-  int pos;
-  wxIPV4address addr;
-
-  tmp_str = url_proxy;
-  pos = tmp_str.Find(_T(':'));
-  // This is an invalid proxy name.
-  if (pos == -1)
-    return;
-
-  hostname = tmp_str(0, pos);
-  port = tmp_str(pos, tmp_str.Length()-pos);
-
-  addr.Hostname(hostname);
-  addr.Service(port);
-
-  // Finally, create the whole stuff.
-  if (m_proxy && m_proxy != g_proxy)
-    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();
+        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)
+wxString wxURL::ConvertToValidURI(const wxString& uri, const wxChar* delims)
 {
   wxString out_str;
   wxString hexa_code;
   size_t i;
 
-  for (i=0;i<uri.Len();i++) {
+  for (i = 0; i < uri.Len(); i++)
+  {
     wxChar c = uri.GetChar(i);
 
-    if (c == _T(' '))
-      out_str += _T('+');
-    else {
-      if (!isalpha(c) && c != _T('.') && c != _T('+') && c != _T('/')) { 
-        hexa_code.Printf(_T("%%%02X"), c);
+    if (c == wxT(' '))
+    {
+      // GRG, Apr/2000: changed to "%20" instead of '+'
+
+      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
+      }
+      else
+      {
         out_str += c;
+      }
     }
   }
-  
+
   return out_str;
 }
 
-#endif
-  // wxUSE_SOCKETS
+wxString wxURL::ConvertFromURI(const wxString& uri)
+{
+  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;
+}
+
+// ----------------------------------------------------------------------
+// A module which deletes the default proxy if we created it
+// ----------------------------------------------------------------------
+
+#if wxUSE_SOCKETS
+
+class wxURLModule : public wxModule
+{
+public:
+    virtual bool OnInit();
+    virtual void OnExit();
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxURLModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxURLModule, wxModule)
+
+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;
+    }
+
+    return true;
+}
+
+void wxURLModule::OnExit()
+{
+    delete wxURL::ms_proxyDefault;
+    wxURL::ms_proxyDefault = NULL;
+}
+
+#endif // wxUSE_SOCKETS
+
+#endif // wxUSE_URL
+