static void HandleNimigemActivate(Uri uri)
{
var preformattedLines = new List <GeminiLine>();
var exitedPreformatted = false;
var enteredPreformat = false;
var foundNimigemEdit = false;
var currentLine = _lineView.SelectedItem;
var activatedLine = (GeminiLine)_lineView.Source.ToList()[currentLine];
//check if it is hinted as a null payload link
if (activatedLine.Line.StartsWith('\u2205'.ToString()))
{
//send null payload
try
{
SubmitNimigem(uri, Encoding.UTF8.GetBytes(""), "text/plain");
}
catch (Exception e)
{
Dialogs.MsgBoxOK("Nimigem error", "Nimigem error: " + e.Message);
}
return;
}
//search back in the page for the linked text area
//gather the previous nimigem lines and let the user edit the text
while (currentLine >= 0)
{
var gemLine = (GeminiLine)_lineView.Source.ToList()[currentLine];
if (gemLine.LineType == "```+")
{
enteredPreformat = true;
foundNimigemEdit = true; //strictly speaking this will ignore all nimigem areas that are empty...
}
if (enteredPreformat & gemLine.LineType != "```+")
{
exitedPreformatted = true;
}
if (!exitedPreformatted && enteredPreformat && gemLine.LineType == "```+")
{
//we found a line in the first preceeding preformatted area
preformattedLines.Add(gemLine);
}
currentLine--;
}
var sb = new StringBuilder();
preformattedLines.Reverse();
for (int n = 0; n < preformattedLines.Count; n++)
{
var editLine = preformattedLines[n];
//nimigem spec requires any required preformatted markers inside
//editable preformatted areas to be escaped with zero width space
if (editLine.Line.StartsWith('\u200b'.ToString() + "```"))
{
sb.Append(editLine.Line.Substring(1)); //trim leading zero width space used to escape preformatted markers
}
else
{
sb.Append(editLine.Line);
}
//append newline to all except the last one
if (n < preformattedLines.Count - 1)
{
sb.Append("\n");
}
}
if (foundNimigemEdit)
{
var userEdit = Dialogs.MultilineInputBox("Nimigem edit", "Edit the text to be sent to: " + uri.AbsoluteUri, sb.ToString());
if (userEdit.ButtonPressed == TextDialogResponse.Buttons.Ok)
{
try
{
//send as plain text, utf8
SubmitNimigem(uri, Encoding.UTF8.GetBytes(userEdit.Text), "text/plain");
}
catch (Exception e)
{
Dialogs.MsgBoxOK("Nimigem error", "Nimigem error: \n" + e.Message);
}
}
}
else
{
//No associated preceding Nimigem editable preformatted area was found.
//so send a file
//show a dialog to choose a file
var openDialog = new Terminal.Gui.OpenDialog("Nimigem upload", "Choose a file to send to the Nimigem server");
Application.Run(openDialog);
if (openDialog.FilePaths.Count > 0)
{
var selectedPath = openDialog.FilePaths[0];
var bytes = File.ReadAllBytes(selectedPath);
var extension = Path.GetExtension(selectedPath);
// since text/gemini is not widely known but might be more common for users of a gemini client
// we test for it, otherwise we use the MimeTypes library to infer it
var mediaType = (extension == ".gmi" || extension == ".gemini") ? "text/gemini" : MimeTypes.GetMimeType(selectedPath);
try
{
SubmitNimigem(uri, bytes, mediaType); //send to the server
}
catch (Exception e)
{
Dialogs.MsgBoxOK("Nimigem error", "Nimigem error: \n" + e.Message);
}
}
}
}
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);
}
}
}