3.9

1 files changed, 174 insertions, 0 deletions

diff --git a/ui/check_version.cpp b/ui/check_version.cpp
new file mode 100644
index 00000000..d9f892d9
--- /dev/null
+++ b/ui/check_version.cpp
@@ -0,0 +1,174 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#include "check_version.h"
+#include <wx/msgdlg.h>
+#include <wx/protocol/http.h>
+#include <wx/sstream.h>
+#include "../version/version.h"
+#include <wx/utils.h>
+#include <wx/timer.h>
+#include "../shared/global_func.h"
+#include "msg_popup.h"
+#include "../shared/standard_paths.h"
+#include <wx/tokenzr.h>
+
+
+class CloseConnectionOnExit
+{
+public:
+    CloseConnectionOnExit(wxInputStream* httpStream, wxHTTP& webAccess) :
+        m_httpStream(httpStream),
+        m_webAccess(webAccess) {}
+
+    ~CloseConnectionOnExit()
+    {
+        delete m_httpStream; //must be deleted BEFORE webAccess is closed
+        m_webAccess.Close();
+    }
+
+private:
+    wxInputStream* m_httpStream;
+    wxHTTP& m_webAccess;
+};
+
+
+bool getOnlineVersion(wxString& version)
+{
+    wxHTTP webAccess;
+    wxInputStream* httpStream = NULL;
+
+    wxWindowDisabler dummy;
+    CloseConnectionOnExit dummy2(httpStream, webAccess);
+
+    webAccess.SetHeader(wxT("Content-type"), wxT("text/html; charset=utf-8"));
+    webAccess.SetTimeout(5); //5 seconds of timeout instead of 10 minutes...
+
+    if (webAccess.Connect(wxT("freefilesync.cvs.sourceforge.net"))) //only the server, no pages here yet...
+    {
+        //wxApp::IsMainLoopRunning(); // should return true
+
+        httpStream = webAccess.GetInputStream(wxT("/viewvc/freefilesync/version/version.txt"));
+
+        if (httpStream && webAccess.GetError() == wxPROTO_NOERR)
+        {
+            wxString newestVersion;
+            wxStringOutputStream out_stream(&newestVersion);
+            httpStream->Read(out_stream);
+            if (!newestVersion.empty())
+            {
+                version = newestVersion;
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+
+const wxChar VERSION_SEP = wxT('.');
+
+
+std::vector<size_t> parseVersion(const wxString& version)
+{
+    std::vector<size_t> output;
+
+    wxStringTokenizer tkz(version, VERSION_SEP, wxTOKEN_RET_EMPTY);
+    while (tkz.HasMoreTokens())
+    {
+        const wxString& token = tkz.GetNextToken();
+        output.push_back(common::stringToNumber<size_t>(token));
+    }
+    return output;
+}
+
+
+bool newerVersionExists(const wxString& onlineVersion)
+{
+    std::vector<size_t> current = parseVersion(ffs3::currentVersion);
+    std::vector<size_t> online  = parseVersion(onlineVersion);
+
+    if (online.empty() || online[0] == 0) //onlineVersion may be "This website has been moved..." In this case better check for an update
+        return true;
+
+    current.resize(std::max(current.size(), online.size()));
+    online. resize(std::max(current.size(), online.size()));
+
+    typedef std::vector<size_t>::const_iterator VerIter;
+    const std::pair<VerIter, VerIter> mm = std::mismatch (current.begin(), current.end(),
+                                           online.begin());
+
+    return mm.first == current.end() ? false : //both versions match
+           *mm.first < *mm.second;
+}
+
+
+void ffs3::checkForUpdateNow()
+{
+    wxString onlineVersion;
+    if (!getOnlineVersion(onlineVersion))
+    {
+        wxMessageBox(_("Unable to connect to sourceforge.net!"), _("Error"), wxOK | wxICON_ERROR);
+        return;
+    }
+
+    if (newerVersionExists(onlineVersion))
+    {
+        const int rv = wxMessageBox(wxString(_("A newer version of FreeFileSync is available:"))  + wxT(" v") + onlineVersion + wxT(". ") + _("Download now?"), _("Information"), wxYES_NO | wxICON_QUESTION);
+        if (rv == wxYES)
+            wxLaunchDefaultBrowser(wxT("http://sourceforge.net/project/showfiles.php?group_id=234430"));
+    }
+    else
+        wxMessageBox(_("FreeFileSync is up to date!"), _("Information"), wxICON_INFORMATION);
+}
+
+
+void ffs3::checkForUpdatePeriodically(long& lastUpdateCheck)
+{
+#ifdef FFS_LINUX
+    if (!ffs3::isPortableVersion()) //don't check for updates in installer version -> else: handled by .deb
+        return;
+#endif
+
+    if (lastUpdateCheck != -1)
+    {
+        if (lastUpdateCheck == 0)
+        {
+            QuestionDlg* const messageDlg = new QuestionDlg(NULL,
+                    QuestionDlg::BUTTON_YES | QuestionDlg::BUTTON_CANCEL,
+                    wxString(_("Do you want FreeFileSync to automatically check for updates every week?")) + wxT("\n") +
+                    _("(Requires an Internet connection!)"));
+
+            const bool checkRegularly = messageDlg->ShowModal() == QuestionDlg::BUTTON_YES;
+            messageDlg->Destroy();
+            if (checkRegularly)
+            {
+                lastUpdateCheck = 123; //some old date (few seconds after 1970)
+
+                checkForUpdatePeriodically(lastUpdateCheck); //check for updates now
+            }
+            else
+                lastUpdateCheck = -1; //don't check for updates anymore
+        }
+        else if (wxGetLocalTime() >= lastUpdateCheck + 7 * 24 * 3600) //check weekly
+        {
+            wxString onlineVersion;
+            if (!getOnlineVersion(onlineVersion))
+                return; //do not handle error
+
+            lastUpdateCheck = wxGetLocalTime();
+
+            if (newerVersionExists(onlineVersion))
+            {
+                const int rv = wxMessageBox(wxString(_("A newer version of FreeFileSync is available:"))  + wxT(" v") + onlineVersion + wxT(". ") + _("Download now?"), _("Information"), wxYES_NO | wxICON_QUESTION);
+                if (rv == wxYES)
+                    wxLaunchDefaultBrowser(wxT("http://sourceforge.net/project/showfiles.php?group_id=234430"));
+            }
+        }
+    }
+}
+