static void LoadGeminiLink(Uri uri)
{
string result;
bool retrieved = false;
GeminiResponse resp;
resp = new GeminiResponse();
try
{
resp = (GeminiResponse)Gemini.Fetch(uri);
retrieved = true;
}
catch (Exception e)
{
//the native gui.cs Messagebox does not resize to show enough content
//so we use our own that is better
Dialogs.MsgBoxOK("Gemini error", uri.AbsoluteUri + "\n\n" + e.Message);
}
if (retrieved)
{
if (resp.codeMajor == '2')
{
//examine the first component of the media type up to any semi colon
switch (resp.mime.Split(';')[0].Trim())
{
case "text/gemini":
case "text/plain":
case "text/html":
{
string body = Encoding.UTF8.GetString(resp.bytes.ToArray());
result = (body);
if (!resp.mime.StartsWith("text/gemini"))
{
//display as preformatted text
result = "```\n" + result + "\n```\n";
}
break;
}
default: // report the mime type only for now
result = ("Some " + resp.mime + " content was received, but cannot currently be displayed.");
break;
}
//render the content and add to history
SetAsCurrent(resp.uri); //remember the final URI, since it may have been redirected.
if (_history.Count > 0)
{
_history.Peek().top = _lineView.TopItem;
_history.Peek().selected = _lineView.SelectedItem; //remember the line offset of the current page
}
_history.Push(new CachedPage(resp.uri, result, 0, 0));
RenderGemini(resp.uri.AbsoluteUri, result, _lineView);
}
else if (resp.codeMajor == '1')
{
//input requested from server
var userResponse = Dialogs.SingleLineInputBox("Input request from: " + uri.Authority, resp.meta, "");
if ((userResponse.ButtonPressed == TextDialogResponse.Buttons.Ok) && (userResponse.Text != ""))
{
var ub = new UriBuilder(uri);
ub.Query = userResponse.Text;
LoadGeminiLink(ub.Uri);
}
}
else if ((resp.codeMajor == '5') && (resp.codeMinor == '1'))
{
//not found
Dialogs.MsgBoxOK("Not found", "The resource was not found on the server: \n\n" + resp.uri.AbsoluteUri);
}
else
{
Dialogs.MsgBoxOK("Gemini server response", uri.AbsoluteUri + "\n\n" + "Status: " + resp.codeMajor + resp.codeMinor + ": " + resp.meta);
}
}
}
//navigate to a url but get some user input first
public void NavigateGeminiWithInput(System.Windows.Navigation.NavigatingCancelEventArgs e, GeminiResponse geminiResponse)
{
//position input box approx in middle of main window
var targetUri = geminiResponse.uri;
var message = geminiResponse.meta;
var windowCentre = WindowGeometry.WindowCentre(mMainWindow);
var inputPrompt = "Input request from Gemini server\n\n" +
" " + targetUri.Host + targetUri.LocalPath + "\n\n" +
message;
string input = Interaction.InputBox(inputPrompt, "Server input request", "", windowCentre.Item1, windowCentre.Item2);
if (input != "")
{
//encode the query
var b = new UriBuilder();
b.Scheme = targetUri.Scheme;
b.Host = targetUri.Host;
if (targetUri.Port != -1)
{
b.Port = targetUri.Port;
}
b.Path = targetUri.LocalPath;
//!%22%C2%A3$%25%5E&*()_+1234567890-=%7B%7D:@~%3C%3E?[];'#,./
b.Query = Uri.EscapeDataString(input); //escape the query result
//ToastNotify(b.ToString());
mWebBrowser.Navigate(b.ToString());
}
else
{
//dont do anything further with navigating the browser
e.Cancel = true;
}
}
static void LoadLink(Uri uri)
{
string result;
//special treatment for about: scheme
if (uri.Scheme == "about")
{
result = ReadAboutSchemeFile(uri);
RenderGemini(uri.AbsoluteUri, result, _lineView);
_history.Push(new CachedPage(uri, result, 0, 0));
SetAsCurrent(uri);
return;
}
bool retrieved = false;
GeminiResponse resp;
resp = new GeminiResponse();
try
{
resp = (GeminiResponse)Gemini.Fetch(uri);
retrieved = true;
}
catch (Exception e)
{
//seems to be a bug that the native Messagebox does not resize to show enough content
MsgBoxOK("Retrieval error", e.Message);
}
if (retrieved)
{
if (resp.codeMajor == '2')
{
//examine the first component of the media type up to any semi colon
switch (resp.mime.Split(';')[0].Trim())
{
case "text/gemini":
case "text/plain":
case "text/html":
{
string body = Encoding.UTF8.GetString(resp.bytes.ToArray());
result = (body);
if (!resp.mime.StartsWith("text/gemini"))
{
//display as preformatted text
result = "```\n" + result + "\n```\n";
}
break;
}
default: // report the mime type only for now
result = ("Some " + resp.mime + " content was received, but cannot currently be displayed.");
break;
}
//render the content and add to history
SetAsCurrent(resp.uri); //remember the final URI, since it may have been redirected.
if (_history.Count > 0)
{
_history.Peek().top = _lineView.TopItem;
_history.Peek().selected = _lineView.SelectedItem; //remember the line offset of the current page
}
_history.Push(new CachedPage(resp.uri, result, 0, 0));
RenderGemini(resp.uri.AbsoluteUri, result, _lineView);
}
else if (resp.codeMajor == '1')
{
//input requested from server
var userText = InputBox("Input request from: " + uri.Authority, resp.meta, "");
if (userText != "")
{
var ub = new UriBuilder(uri);
ub.Query = userText;
LoadLink(ub.Uri);
}
}
else
{
MsgBoxOK("Gemini error", "Status: " + resp.codeMajor + resp.codeMinor + ": " + resp.meta);
}
}
}
