//launch url in system browser
public void LaunchExternalUri(string uri)
{
Process.Start(new ProcessStartInfo(uri)
{
UseShellExecute = true
});
mMainWindow.ToastNotify("Launching in system browser: " + uri);
}
public void AddBookmark(string url, string title)
{
var settings = new Settings();
foreach (var line in BookmarkLines())
{
var linkParts = ParseGeminiLink(line);
if (linkParts[0] == url)
{
//already exists
mMainWindow.ToastNotify("That URL is already in the bookmarks, skipping.\n" + url, ToastMessageStyles.Warning);
return;
}
}
//a new one
settings.Bookmarks += "\r\n" + "=> " + url + " " + mWebBrowser.GetTitle();
settings.Save();
RefreshBookmarkMenu();
mMainWindow.ToastNotify("Bookmark added: " + (title + " " + url).Trim(), ToastMessageStyles.Success);
}
public void NavigateAboutScheme(System.Windows.Navigation.NavigatingCancelEventArgs e, SiteIdentity siteIdentity)
{
var sessionPath = Session.Instance.SessionPath;
var appDir = System.AppDomain.CurrentDomain.BaseDirectory;
string fullQuery;
//just load the help file
//no further action
mMainWindow.ToggleContainerControlsForBrowser(true);
var sourceFileName = e.Uri.PathAndQuery.Substring(1); //trim off leading /
//this expects uri has a "geminaut" domain so gmitohtml converter can proceed for now
//I think it requires a domain for parsing...
fullQuery = e.Uri.OriginalString;
string hash;
hash = HashService.GetMd5Hash(fullQuery);
var hashFile = Path.Combine(sessionPath, hash + ".txt");
var htmlCreateFile = Path.Combine(sessionPath, hash + ".htm");
var finder = new ResourceFinder();
var helpFolder = finder.LocalOrDevFolder(appDir, @"Docs", @"..\..\Docs");
var helpFile = Path.Combine(helpFolder, sourceFileName);
//use a specific theme so about pages look different to user theme
var templateBaseName = Path.Combine(helpFolder, "help-theme");
if (File.Exists(helpFile))
{
File.Copy(helpFile, hashFile, true);
mMainWindow.ShowUrl(fullQuery, hashFile, htmlCreateFile, templateBaseName, siteIdentity, e);
}
else
{
mMainWindow.ToastNotify("No content was found for: " + fullQuery, ToastMessageStyles.Warning);
e.Cancel = true;
}
}
public void NavigateGeminiScheme(string fullQuery, System.Windows.Navigation.NavigatingCancelEventArgs e, SiteIdentity siteIdentity, bool requireSecure = true)
{
var geminiUri = e.Uri.OriginalString;
var sessionPath = Session.Instance.SessionPath;
var appDir = AppDomain.CurrentDomain.BaseDirectory;
var settings = new UserSettings();
var hash = HashService.GetMd5Hash(fullQuery);
//uses .txt as extension so content loaded as text/plain not interpreted by the browser
//if user requests a view-source.
var rawFile = sessionPath + "\\" + hash + ".txt";
var gmiFile = sessionPath + "\\" + hash + ".gmi";
var htmlFile = sessionPath + "\\" + hash + ".htm";
//delete txt file as GemGet seems to sometimes overwrite not create afresh
File.Delete(rawFile);
File.Delete(gmiFile);
//delete any existing html file to encourage webbrowser to reload it
File.Delete(htmlFile);
var uri = new Uri(fullQuery);
//use a proxy for any other scheme that is not gemini
var proxy = ""; //use none
var connectInsecure = false;
X509Certificate2 certificate;
certificate = Session.Instance.CertificatesManager.GetCertificate(uri.Host); //may be null if none assigned or available
if (uri.Scheme != "gemini")
{
proxy = settings.HttpSchemeProxy;
}
try
{
GeminiResponse geminiResponse;
try
{
geminiResponse = (GeminiResponse)Gemini.Fetch(uri, certificate, proxy, connectInsecure, settings.MaxDownloadSizeMb * 1024, settings.MaxDownloadTimeSeconds);
}
catch (Exception err)
{
//warn, but continue if there are server validation errors
//in these early days of Gemini we dont forbid visiting a site with an expired cert or mismatched host name
//but we do give a warning each time
if (err.Message == "The remote certificate was rejected by the provided RemoteCertificateValidationCallback.")
{
mMainWindow.ToastNotify("Note: the certificate from: " + e.Uri.Authority + " is expired or invalid.", ToastMessageStyles.Warning);
//try again insecure this time
geminiResponse = (GeminiResponse)Gemini.Fetch(uri, certificate, proxy, true, settings.MaxDownloadSizeMb * 1024, settings.MaxDownloadTimeSeconds);
}
else
{
//reraise
throw;
}
}
if (geminiResponse.codeMajor == '1')
{
//needs input, then refetch
mMainWindow.ToggleContainerControlsForBrowser(true);
NavigateGeminiWithInput(e, geminiResponse);
}
else if (geminiResponse.codeMajor == '2')
{
//success
File.WriteAllBytes(rawFile, geminiResponse.bytes.ToArray());
if (File.Exists(rawFile))
{
if (geminiResponse.meta.Contains("text/gemini"))
{
File.Copy(rawFile, gmiFile);
}
else if (geminiResponse.meta.Contains("text/html"))
{
//is an html file served over gemini - probably not common, but not unheard of
var htmltoGmiResult = ConverterService.HtmlToGmi(rawFile, gmiFile);
if (htmltoGmiResult.Item1 != 0)
{
mMainWindow.ToastNotify("Could not convert HTML to GMI: " + fullQuery, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
}
else if (geminiResponse.meta.Contains("text/"))
{
//convert plain text to a gemini version (wraps it in a preformatted section)
var textToGmiResult = ConverterService.TextToGmi(rawFile, gmiFile);
if (textToGmiResult.Item1 != 0)
{
mMainWindow.ToastNotify("Could not render text as GMI: " + fullQuery, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
}
else
{
//a download
//its an image - rename the raw file and just show it
var pathFragment = (new UriBuilder(fullQuery)).Path;
var ext = Path.GetExtension(pathFragment);
var binFile = rawFile + (ext == "" ? ".tmp" : ext);
File.Copy(rawFile, binFile, true); //rename overwriting
if (geminiResponse.meta.Contains("image/"))
{
mMainWindow.ShowImage(fullQuery, binFile, e);
}
else
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.FileName = Path.GetFileName(pathFragment);
if (saveFileDialog.ShowDialog() == true)
{
try
{
//save the file
var savePath = saveFileDialog.FileName;
File.Copy(binFile, savePath, true); //rename overwriting
mMainWindow.ToastNotify("File saved to " + savePath, ToastMessageStyles.Success);
}
catch (SystemException err)
{
mMainWindow.ToastNotify("Could not save the file due to: " + err.Message, ToastMessageStyles.Error);
}
}
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
}
return;
}
if (geminiResponse.uri.ToString() != fullQuery)
{
string redirectUri = fullQuery;
if (geminiResponse.uri.ToString().Contains("://"))
{
//a full url
//normalise the URi (e.g. remove default port if specified)
redirectUri = UriTester.NormaliseUri(new Uri(geminiResponse.uri.ToString())).ToString();
}
else
{
//a relative one
var baseUri = new Uri(fullQuery);
var targetUri = new Uri(baseUri, geminiResponse.uri.ToString());
redirectUri = UriTester.NormaliseUri(targetUri).ToString();
}
var finalUri = new Uri(redirectUri);
if (e.Uri.Scheme == "gemini" && finalUri.Scheme != "gemini")
{
//cross-scheme redirect, not supported
mMainWindow.ToastNotify("Cross scheme redirect from Gemini not supported: " + redirectUri, ToastMessageStyles.Warning);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
else
{
//others e.g. http->https redirect are fine
}
//redirected to a full gemini url
geminiUri = redirectUri;
//regenerate the hashes using the redirected target url
hash = HashService.GetMd5Hash(geminiUri);
var gmiFileNew = sessionPath + "\\" + hash + ".txt";
var htmlFileNew = sessionPath + "\\" + hash + ".htm";
//move the source file
try
{
if (File.Exists(gmiFileNew))
{
File.Delete(gmiFileNew);
}
File.Move(gmiFile, gmiFileNew);
}
catch (Exception err)
{
mMainWindow.ToastNotify(err.ToString(), ToastMessageStyles.Error);
}
//update locations of gmi and html file
gmiFile = gmiFileNew;
htmlFile = htmlFileNew;
}
else
{
geminiUri = fullQuery;
}
var userThemesFolder = ResourceFinder.LocalOrDevFolder(appDir, @"GmiConverters\themes", @"..\..\..\GmiConverters\themes");
var userThemeBase = Path.Combine(userThemesFolder, settings.Theme);
mMainWindow.ShowUrl(geminiUri, gmiFile, htmlFile, userThemeBase, siteIdentity, e);
}
}
// codemajor = 3 is redirect - should eventually end in success or raise an error
else if (geminiResponse.codeMajor == '4')
{
mMainWindow.ToastNotify("Temporary failure (status 4X)\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
else if (geminiResponse.codeMajor == '5')
{
if (geminiResponse.codeMinor == '1')
{
mMainWindow.ToastNotify("Page not found\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
else
{
mMainWindow.ToastNotify("Permanent failure (status 5X)\n\n" + geminiResponse.meta + "\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
}
else if (geminiResponse.codeMajor == '6')
{
mMainWindow.ToastNotify("Certificate requried. Choose one and try again.\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
else
{
mMainWindow.ToastNotify("Unexpected output from server " +
"(status " + geminiResponse.codeMajor + "." + geminiResponse.codeMinor + ") " +
geminiResponse.meta + "\n\n"
+ e.Uri.ToString(), ToastMessageStyles.Warning);
}
}
catch (Exception err)
{
//generic handler for other runtime errors
mMainWindow.ToastNotify("Error getting gemini content for " + e.Uri.ToString() + "\n\n" + err.Message, ToastMessageStyles.Warning);
}
//make the window responsive again
mMainWindow.ToggleContainerControlsForBrowser(true);
//no further navigation right now
e.Cancel = true;
}
public bool NavigateGeminiScheme(string fullQuery, Uri uri, SiteIdentity siteIdentity, bool requireSecure = true)
{
bool navigated = true;
var geminiUri = uri.OriginalString;
var sessionPath = Session.Instance.SessionPath;
var appDir = AppDomain.CurrentDomain.BaseDirectory;
//use local or dev binary for gemget
var gemGet = ResourceFinder.LocalOrDevFile(appDir, "Gemget", "..\\..\\..\\..\\Gemget", "gemget-windows-386.exe");
var hash = HashService.GetMd5Hash(fullQuery);
//uses .txt as extension so content loaded as text/plain not interpreted by the browser
//if user requests a view-source.
var rawFile = sessionPath + "\\" + hash + ".txt";
var gmiFile = sessionPath + "\\" + hash + ".gmi";
var htmlFile = sessionPath + "\\" + hash + ".htm";
//delete txt file as GemGet seems to sometimes overwrite not create afresh
File.Delete(rawFile);
File.Delete(gmiFile);
//delete any existing html file to encourage webbrowser to reload it
File.Delete(htmlFile);
var settings = new Settings();
string command = "";
var secureFlag = requireSecure ? "" : " -i ";
if (uri.Scheme == "gemini")
{
//pass options to gemget for download
command = string.Format(
"\"{0}\" {1} --header --no-progress-bar -m \"{2}\"Mb -t {3} -o \"{4}\" \"{5}\"",
gemGet,
secureFlag,
settings.MaxDownloadSizeMb,
settings.MaxDownloadTimeSeconds,
rawFile,
fullQuery);
}
else
{
//pass options to gemget for download using the assigned http proxy, such as
//duckling-proxy https://github.com/LukeEmmet/duckling-proxy
//this should obviously be a trusted server since it is in the middle of the
//request
command = string.Format(
"\"{0}\" {1} --header --no-progress-bar -m \"{2}\"Mb -t {3} -o \"{4}\" -p \"{5}\" \"{6}\"",
gemGet,
secureFlag,
settings.MaxDownloadSizeMb,
settings.MaxDownloadTimeSeconds,
rawFile,
settings.HttpSchemeProxy,
fullQuery);
}
var result = ExecuteProcess.ExecuteCommand(command, true, true);
var geminiResponse = new Response.GeminiResponse(fullQuery);
geminiResponse.ParseGemGet(result.Item2); //parse stdout
geminiResponse.ParseGemGet(result.Item3); //parse stderr
//ToastNotify(geminiResponse.Status + " " + geminiResponse.Meta);
//in these early days of Gemini we dont forbid visiting a site with an expired cert or mismatched host name
//but we do give a warning each time
if (result.Item1 == 1 && requireSecure)
{
var tryInsecure = false;
var securityError = "";
if (geminiResponse.Errors[0].Contains("server cert is expired"))
{
tryInsecure = true;
securityError = "Server certificate is expired";
}
else if (geminiResponse.Errors[0].Contains("hostname does not verify"))
{
tryInsecure = true;
securityError = "Host name does not verify";
}
if (tryInsecure)
{
//give a warning and try again with insecure
mMainWindow.ToastNotify("Note: " + securityError + " for: " + uri.Authority, ToastMessageStyles.Warning);
NavigateGeminiScheme(fullQuery, uri, siteIdentity, false);
return(true);
}
}
if (geminiResponse.AbandonedTimeout || geminiResponse.AbandonedSize)
{
var abandonMessage = string.Format(
"Download was abandoned as it exceeded the max size ({0}) or time ({1} s). See GemiNaut settings for details.\n\n{2}",
settings.MaxDownloadSizeMb,
settings.MaxDownloadTimeSeconds,
fullQuery);
mMainWindow.ToastNotify(abandonMessage, ToastMessageStyles.Warning);
mMainWindow.ToggleContainerControlsForBrowser(true);
return(false);
}
if (File.Exists(rawFile))
{
if (geminiResponse.Meta.Contains("text/gemini"))
{
File.Copy(rawFile, gmiFile);
}
else if (geminiResponse.Meta.Contains("text/html"))
{
//is an html file served over gemini - probably not common, but not unheard of
var htmltoGmiResult = ConverterService.HtmlToGmi(rawFile, gmiFile);
if (htmltoGmiResult.Item1 != 0)
{
mMainWindow.ToastNotify("Could not convert HTML to GMI: " + fullQuery, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
return(false);
}
}
else if (geminiResponse.Meta.Contains("text/"))
{
//convert plain text to a gemini version (wraps it in a preformatted section)
var textToGmiResult = ConverterService.TextToGmi(rawFile, gmiFile);
if (textToGmiResult.Item1 != 0)
{
mMainWindow.ToastNotify("Could not render text as GMI: " + fullQuery, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
return(false);
}
}
else
{
//a download
//its an image - rename the raw file and just show it
var pathFragment = (new UriBuilder(fullQuery)).Path;
var ext = Path.GetExtension(pathFragment);
var binFile = rawFile + (ext == "" ? ".tmp" : ext);
File.Copy(rawFile, binFile, true); //rename overwriting
if (geminiResponse.Meta.Contains("image/"))
{
mMainWindow.ShowImage(fullQuery, binFile);
}
else
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.FileName = Path.GetFileName(pathFragment);
if (saveFileDialog.ShowDialog() == true)
{
try
{
//save the file
var savePath = saveFileDialog.FileName;
File.Copy(binFile, savePath, true); //rename overwriting
mMainWindow.ToastNotify("File saved to " + savePath, ToastMessageStyles.Success);
}
catch (SystemException err)
{
mMainWindow.ToastNotify("Could not save the file due to: " + err.Message, ToastMessageStyles.Error);
}
}
mMainWindow.ToggleContainerControlsForBrowser(true);
return(false);
}
return(true);
}
if (geminiResponse.Redirected)
{
string redirectUri = fullQuery;
if (geminiResponse.FinalUrl.Contains("://"))
{
//a full url
//normalise the URi (e.g. remove default port if specified)
redirectUri = UriTester.NormaliseUri(new Uri(geminiResponse.FinalUrl)).ToString();
}
else
{
//a relative one
var baseUri = new Uri(fullQuery);
var targetUri = new Uri(baseUri, geminiResponse.FinalUrl);
redirectUri = UriTester.NormaliseUri(targetUri).ToString();
}
var finalUri = new Uri(redirectUri);
if (uri.Scheme == "gemini" && finalUri.Scheme != "gemini")
{
//cross-scheme redirect, not supported
mMainWindow.ToastNotify("Cross scheme redirect from Gemini not supported: " + redirectUri, ToastMessageStyles.Warning);
mMainWindow.ToggleContainerControlsForBrowser(true);
return(false);
}
else
{
//others e.g. http->https redirect are fine
}
//redirected to a full gemini url
geminiUri = redirectUri;
//regenerate the hashes using the redirected target url
hash = HashService.GetMd5Hash(geminiUri);
var gmiFileNew = sessionPath + "\\" + hash + ".txt";
var htmlFileNew = sessionPath + "\\" + hash + ".htm";
//move the source file
try
{
if (File.Exists(gmiFileNew))
{
File.Delete(gmiFileNew);
}
File.Move(gmiFile, gmiFileNew);
}
catch (Exception err)
{
mMainWindow.ToastNotify(err.ToString(), ToastMessageStyles.Error);
}
//update locations of gmi and html file
gmiFile = gmiFileNew;
htmlFile = htmlFileNew;
}
else
{
geminiUri = fullQuery;
}
var userThemesFolder = ResourceFinder.LocalOrDevFolder(appDir, @"GmiConverters\themes", @"..\..\GmiConverters\themes");
var userThemeBase = Path.Combine(userThemesFolder, settings.Theme);
mMainWindow.ShowUrl(geminiUri, gmiFile, htmlFile, userThemeBase, siteIdentity);
}
else if (geminiResponse.Status == 10 || geminiResponse.Status == 11)
{
//needs input
mMainWindow.ToggleContainerControlsForBrowser(true);
navigated = NavigateGeminiWithInput(uri, geminiResponse.Meta);
}
else if (geminiResponse.Status == 50 || geminiResponse.Status == 51)
{
mMainWindow.ToastNotify("Page not found (status 51)\n\n" + uri.ToString(), ToastMessageStyles.Warning);
}
else
{
//some othe error - show to the user for info
mMainWindow.ToastNotify(string.Format(
"Cannot retrieve the content (exit code {0}): \n\n{1} \n\n{2}",
result.Item1,
string.Join("\n\n", geminiResponse.Info),
string.Join("\n\n", geminiResponse.Errors)
),
ToastMessageStyles.Error);
}
mMainWindow.ToggleContainerControlsForBrowser(true);
//no further navigation right now
return(navigated);
}
public void NavigateNimigemScheme(string fullQuery, System.Windows.Navigation.NavigatingCancelEventArgs e, string payload, bool requireSecure = true)
{
var NimigemUri = e.Uri.OriginalString;
//at present we only support UTF8 plain text payloads
byte[] nimigemBody = Encoding.UTF8.GetBytes(payload);
var mime = "text/plain; charset=utf-8";
var settings = new UserSettings();
var uri = new Uri(fullQuery);
//use a proxy for any other scheme that is not Nimigem
var proxy = ""; //use none
var connectInsecure = false;
if (uri.Host == "localhost")
{
//to support local testing servers, dont require secure connection on localhost
//**FIX ME, or have an option
connectInsecure = true;
}
X509Certificate2 certificate;
certificate = Session.Instance.CertificatesManager.GetCertificate(uri.Host);
try
{
NimigemResponse nimigemResponse;
try
{
nimigemResponse = (NimigemResponse)Nimigem.Fetch(uri, nimigemBody, mime, certificate, proxy, connectInsecure, settings.MaxDownloadSizeMb * 1024, settings.MaxDownloadTimeSeconds);
}
catch (Exception err)
{
//warn, but continue if there are server validation errors
//in these early days of Nimigem we dont forbid visiting a site with an expired cert or mismatched host name
//but we do give a warning each time
if (err.Message == "The remote certificate was rejected by the provided RemoteCertificateValidationCallback.")
{
mMainWindow.ToastNotify("Note: " + err.Message + " for: " + e.Uri.Authority, ToastMessageStyles.Warning);
//try again insecure this time
nimigemResponse = (NimigemResponse)Nimigem.Fetch(uri, nimigemBody, mime, certificate, proxy, connectInsecure, settings.MaxDownloadSizeMb * 1024, settings.MaxDownloadTimeSeconds);
}
else
{
//reraise
throw;
}
}
if (nimigemResponse.codeMajor == '1')
{
//invalid in nimigem
HandleInvalidResponse(nimigemResponse);
}
else if (nimigemResponse.codeMajor == '2')
{
//success
if (nimigemResponse.codeMinor == '5')
{
//valid submission - get the new target to retrieve
mMainWindow.ToastNotify(String.Format("Submit successful: retrieving result: {0}", nimigemResponse.meta));
var successUri = new Uri(nimigemResponse.meta);
//must be a response redirect to gemini URL
if (successUri.Scheme != "gemini")
{
HandleInvalidResponse(nimigemResponse);
}
var geminiTarget = new GeminiNavigator(mMainWindow, mMainWindow.BrowserControl);
var normalisedUri = UriTester.NormaliseUri(successUri);
var siteIdentity = new SiteIdentity(normalisedUri, Session.Instance);
geminiTarget.NavigateGeminiScheme(successUri.OriginalString, e, siteIdentity);
}
else
{
//no other 2X responses are valid
HandleInvalidResponse(nimigemResponse);
}
}
// codemajor = 3 is redirect - should eventually end in success or raise an error
else if (nimigemResponse.codeMajor == '4')
{
//same as normal Gemini
mMainWindow.ToastNotify("Temporary failure (status 4X)\n\n" +
nimigemResponse.meta + "\n\n" +
e.Uri.ToString(), ToastMessageStyles.Warning);
}
else if (nimigemResponse.codeMajor == '5')
{
//same as normal Gemini
if (nimigemResponse.codeMinor == '1')
{
mMainWindow.ToastNotify("Page not found\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
else
{
mMainWindow.ToastNotify("Permanent failure (status 5X)\n\n" +
nimigemResponse.meta + "\n\n" +
e.Uri.ToString(), ToastMessageStyles.Warning);
}
}
else if (nimigemResponse.codeMajor == '6')
{
mMainWindow.ToastNotify("Certificate required. Choose one and try again.\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
else
{
mMainWindow.ToastNotify("Unexpected output from server " +
"(status " + nimigemResponse.codeMajor + "." + nimigemResponse.codeMinor + ") " +
nimigemResponse.meta + "\n\n"
+ e.Uri.ToString(), ToastMessageStyles.Warning);
}
}
catch (Exception err)
{
//generic handler for other runtime errors
mMainWindow.ToastNotify("Error getting Nimigem content for " + e.Uri.ToString() + "\n\n" + err.Message, ToastMessageStyles.Warning);
}
//make the window responsive again
mMainWindow.ToggleContainerControlsForBrowser(true);
//no further navigation right now
e.Cancel = true;
}
public void NavigateGopherScheme(string fullQuery, System.Windows.Navigation.NavigatingCancelEventArgs e, SiteIdentity siteIdentity)
{
var sessionPath = Session.Instance.SessionPath;
var appDir = System.AppDomain.CurrentDomain.BaseDirectory;
//check if it is a query selector without a parameter
if (!e.Uri.OriginalString.Contains("%09") && e.Uri.PathAndQuery.StartsWith("/7/"))
{
NavigateGopherWithInput(e);
mMainWindow.ToggleContainerControlsForBrowser(true);
//no further navigation right now
e.Cancel = true;
return;
}
var proc = new ExecuteProcess();
var finder = new ResourceFinder();
//use local or dev binary for gemget
var gopherClient = finder.LocalOrDevFile(appDir, "GopherGet", "..\\..\\..\\GopherGet", "gopher-get.exe");
string hash;
hash = HashService.GetMd5Hash(fullQuery);
//uses .txt as extension so content loaded as text/plain not interpreted by the browser
//if user requests a view-source.
var gopherFile = sessionPath + "\\" + hash + ".txt";
var gmiFile = sessionPath + "\\" + hash + ".gmi";
var htmlFile = sessionPath + "\\" + hash + ".htm";
//delete txt file as GemGet seems to sometimes overwrite not create afresh
File.Delete(gopherFile);
//delete any existing html file to encourage webbrowser to reload it
File.Delete(gmiFile);
//save to the file
var command = string.Format("\"{0}\" \"{1}\" \"{2}\"", gopherClient, fullQuery, gopherFile);
var result = proc.ExecuteCommand(command, true, true);
var exitCode = result.Item1;
var stdOut = result.Item2;
if (exitCode != 0)
{
mMainWindow.ToastNotify(result.Item3, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true); //reenable browser
e.Cancel = true;
return;
}
if (File.Exists(gopherFile))
{
string parseFile;
if (stdOut.Contains("DIR") || stdOut.Contains("QRY"))
{
//convert gophermap to text/gemini
//ToastNotify("Converting gophermap to " + gmiFile);
result = ConverterService.GophertoGmi(gopherFile, gmiFile, fullQuery, GopherParseTypes.Map);
parseFile = gmiFile;
}
else if (stdOut.Contains("TXT"))
{
result = ConverterService.GophertoGmi(gopherFile, gmiFile, fullQuery, GopherParseTypes.Text);
parseFile = gmiFile;
}
else
{
//a download
//copy to a file having its source extension
var pathFragment = (new UriBuilder(fullQuery)).Path;
var ext = Path.GetExtension(pathFragment);
var binFile = gopherFile + (ext ?? "");
File.Copy(gopherFile, binFile, true); //rename overwriting
if (stdOut.Contains("IMG") || stdOut.Contains("GIF"))
{
//show the image
mMainWindow.ShowImage(fullQuery, binFile, e);
}
else
{
//show a save as dialog
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.FileName = Path.GetFileName(pathFragment);
if (saveFileDialog.ShowDialog() == true)
{
try
{
//save the file
var savePath = saveFileDialog.FileName;
File.Copy(binFile, savePath, true); //rename overwriting
mMainWindow.ToastNotify("File saved to " + savePath, ToastMessageStyles.Success);
}
catch (SystemException err)
{
mMainWindow.ToastNotify("Could not save the file due to: " + err.Message, ToastMessageStyles.Error);
}
}
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
}
return;
}
if (!File.Exists(gmiFile))
{
mMainWindow.ToastNotify("Did not create expected GMI file for " + fullQuery + " in " + gmiFile, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
}
else
{
var settings = new Settings();
var userThemesFolder = finder.LocalOrDevFolder(appDir, @"GmiConverters\themes", @"..\..\GmiConverters\themes");
var userThemeBase = Path.Combine(userThemesFolder, settings.Theme);
mMainWindow.ShowUrl(fullQuery, parseFile, htmlFile, userThemeBase, siteIdentity, e);
}
}
}
public void NavigateHttpScheme(string fullQuery, NavigatingCancelEventArgs e, SiteIdentity siteIdentity, string linkId)
{
var httpUri = e.Uri.OriginalString;
var sessionPath = Session.Instance.SessionPath;
var appDir = AppDomain.CurrentDomain.BaseDirectory;
var hash = HashService.GetMd5Hash(fullQuery);
var settings = new UserSettings();
//uses .txt as extension so content loaded as text/plain not interpreted by the browser
//if user requests a view-source.
var rawFile = sessionPath + "\\" + hash + ".txt";
var gmiFile = sessionPath + "\\" + hash + ".gmi";
var htmlFile = sessionPath + "\\" + hash + ".htm";
var reRender = false; //if just re-rendering the same content in a different mode, dont re-fetch
var httpResponse = new Response.HttpResponse(fullQuery);
Tuple <int, string, string> result;
if (IsModeSwitch(linkId) && File.Exists(rawFile))
{
//use the existing content
reRender = true;
result = new Tuple <int, string, string>(0, "", "");
//set default mode to this mode
settings.WebRenderMode = linkId;
settings.Save();
}
else
{
File.Delete(rawFile);
//delete txt file as GemGet seems to sometimes overwrite not create afresh
File.Delete(gmiFile);
//use local or dev binary for gemget
var httpGet = ResourceFinder.LocalOrDevFile(appDir, "HttpGet", "..\\..\\..\\..\\HttpGet", "http-get.exe");
//pass options to gemget for download
var command = string.Format(
"\"{0}\" --header -o \"{1}\" \"{2}\"",
httpGet,
rawFile,
fullQuery);
result = ExecuteProcess.ExecuteCommand(command, true, true);
if (result.Item1 != 0)
{
mMainWindow.ToastNotify("Could not access web resource: " + fullQuery + "\n" + result.Item3, ToastMessageStyles.Warning);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
httpResponse.ParseGemGet(result.Item2); //parse stdout
httpResponse.ParseGemGet(result.Item3); //parse stderr
if (httpResponse.StatusCode == 404)
{
{
mMainWindow.ToastNotify("Resource not found:\n" + fullQuery, ToastMessageStyles.Warning);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
//ToastNotify(httpResponse.Status + " " + httpResponse.Meta);
}
else if (httpResponse.StatusCode != 200)
{
//some other error
mMainWindow.ToastNotify("Could not get resource: "
+ httpResponse.Status + "\n"
+ fullQuery, ToastMessageStyles.Warning);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
}
//delete any existing html file to encourage webbrowser to reload it
File.Delete(htmlFile);
if (File.Exists(rawFile))
{
if (httpResponse.ContentType.Contains("text/html") || reRender)
{
//use local or dev binary for goose
var gooseConvert = ResourceFinder.LocalOrDevFile(appDir, "Goose", "..\\..\\..\\..\\Goose", "goose-cli.exe");
var gooseOut = sessionPath + "\\" + hash + ".goose";
var gooseCommand = "";
var htmlPath = "";
if (settings.WebRenderMode == "web-switch-plain")
{
//pass options to goose to get plain text
gooseCommand = string.Format(
"\"{0}\" -t -i \"{1}\" -o \"{2}\"",
gooseConvert,
rawFile,
gooseOut);
result = ExecuteProcess.ExecuteCommand(gooseCommand, true, true);
//just use plain text
File.Copy(gooseOut, gmiFile, true);
}
else
{
if (settings.WebRenderMode == "web-switch-simplified")
{
//pass options to goose to get main content as html
gooseCommand = string.Format(
"\"{0}\" -i \"{1}\" -o \"{2}\"",
gooseConvert,
rawFile,
gooseOut);
//get main html of the page
result = ExecuteProcess.ExecuteCommand(gooseCommand, true, true);
htmlPath = gooseOut;
}
else
{
//no filtering to extract main content
htmlPath = rawFile;
}
//convert to gmi
var htmlToGmiResult = ConverterService.HtmlToGmi(htmlPath, gmiFile);
if (htmlToGmiResult.Item1 != 0)
{
mMainWindow.ToastNotify("Could not render HTML as GMI: " + fullQuery, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
}
}
else if (httpResponse.ContentType.Contains("text/"))
{
//convert plain text to a http version (wraps it in a preformatted section)
var textToGmiResult = ConverterService.TextToGmi(rawFile, gmiFile);
if (textToGmiResult.Item1 != 0)
{
mMainWindow.ToastNotify("Could not render text as GMI: " + fullQuery, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
return;
}
}
else
{
//a download
//its an image - rename the raw file and just show it
var pathFragment = (new UriBuilder(fullQuery)).Path;
var ext = Path.GetExtension(pathFragment);
var binFile = rawFile + (ext == "" ? ".tmp" : ext);
File.Copy(rawFile, binFile, true); //rename overwriting
if (httpResponse.ContentType.Contains("image/"))
{
mMainWindow.ShowImage(fullQuery, binFile, e);
}
else
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.FileName = Path.GetFileName(pathFragment);
if (saveFileDialog.ShowDialog() == true)
{
try
{
//save the file
var savePath = saveFileDialog.FileName;
File.Copy(binFile, savePath, true); //rename overwriting
mMainWindow.ToastNotify("File saved to " + savePath, ToastMessageStyles.Success);
}
catch (SystemException err)
{
mMainWindow.ToastNotify("Could not save the file due to: " + err.Message, ToastMessageStyles.Error);
}
}
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
}
return;
}
if (httpResponse.Redirected)
{
string redirectUri = fullQuery;
redirectUri = httpResponse.FinalUrl;
//redirected to a full http url
httpUri = redirectUri;
//regenerate the hashes using the redirected target url
hash = HashService.GetMd5Hash(httpUri);
var gmiFileNew = sessionPath + "\\" + hash + ".txt";
var htmlFileNew = sessionPath + "\\" + hash + ".htm";
//move the source file
try
{
if (File.Exists(gmiFileNew))
{
File.Delete(gmiFileNew);
}
File.Move(gmiFile, gmiFileNew);
}
catch (Exception err)
{
mMainWindow.ToastNotify(err.ToString(), ToastMessageStyles.Error);
}
//update locations of gmi and html file
gmiFile = gmiFileNew;
htmlFile = htmlFileNew;
}
else
{
httpUri = fullQuery;
}
var userThemesFolder = ResourceFinder.LocalOrDevFolder(appDir, @"GmiConverters\themes", @"..\..\..\GmiConverters\themes");
var userThemeBase = Path.Combine(userThemesFolder, settings.Theme);
mMainWindow.ShowUrl(httpUri, gmiFile, htmlFile, userThemeBase, siteIdentity, e);
}
else if (httpResponse.StatusCode == 404)
{
mMainWindow.ToastNotify("Page not found (status 51)\n\n" + e.Uri.ToString(), ToastMessageStyles.Warning);
}
else
{
//some othe error - show to the user for info
mMainWindow.ToastNotify(string.Format(
"Cannot retrieve the content (exit code {0}): \n\n{1} \n\n{2}",
result.Item1,
string.Join("\n\n", httpResponse.Info),
string.Join("\n\n", httpResponse.Errors)
),
ToastMessageStyles.Error);
}
mMainWindow.ToggleContainerControlsForBrowser(true);
//no further navigation right now
e.Cancel = true;
}
public void NavigateGopherScheme(string fullQuery, System.Windows.Navigation.NavigatingCancelEventArgs e, SiteIdentity siteIdentity)
{
var sessionPath = Session.Instance.SessionPath;
var appDir = AppDomain.CurrentDomain.BaseDirectory;
//check if it is a query selector without a parameter
if (!e.Uri.OriginalString.Contains("%09") && e.Uri.PathAndQuery.StartsWith("/7/"))
{
NavigateGopherWithInput(e);
mMainWindow.ToggleContainerControlsForBrowser(true);
//no further navigation right now
e.Cancel = true;
return;
}
var settings = new UserSettings();
var hash = HashService.GetMd5Hash(fullQuery);
//uses .txt as extension so content loaded as text/plain not interpreted by the browser
//if user requests a view-source.
var gopherFile = sessionPath + "\\" + hash + ".txt";
var gmiFile = sessionPath + "\\" + hash + ".gmi";
var htmlFile = sessionPath + "\\" + hash + ".htm";
//delete txt file as GemGet seems to sometimes overwrite not create afresh
File.Delete(gopherFile);
//delete any existing html file to encourage webbrowser to reload it
File.Delete(gmiFile);
//get the content from Gopher using SmolNetSharp
IResponse response;
try
{
response = Gopher.Fetch(new Uri(fullQuery), settings.MaxDownloadSizeMb * 1024, settings.MaxDownloadTimeSeconds);
File.WriteAllBytes(gopherFile, response.bytes.ToArray());
}
catch (Exception err)
{
mMainWindow.ToastNotify(err.Message, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true); //reenable browser
e.Cancel = true;
return;
}
var mime = response.mime;
Tuple <int, string, string> result;
if (File.Exists(gopherFile))
{
string parseFile;
if (mime == "application/gopher-menu")
{
//convert gophermap to text/gemini
//ToastNotify("Converting gophermap to " + gmiFile);
result = ConverterService.GophertoGmi(gopherFile, gmiFile, fullQuery, GopherParseTypes.Map);
parseFile = gmiFile;
}
else if (mime == "text/plain")
{
result = ConverterService.GophertoGmi(gopherFile, gmiFile, fullQuery, GopherParseTypes.Text);
parseFile = gmiFile;
}
else
{
//a download
//copy to a file having its source extension
var pathFragment = (new UriBuilder(fullQuery)).Path;
var ext = Path.GetExtension(pathFragment);
var binFile = gopherFile + (ext ?? "");
File.Copy(gopherFile, binFile, true); //rename overwriting
if (mime == "image/png" || mime == "image/gif" || mime == "image/jpeg")
{
//show the image
mMainWindow.ShowImage(fullQuery, binFile, e);
}
else
{
//show a save as dialog
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.FileName = Path.GetFileName(pathFragment);
if (saveFileDialog.ShowDialog() == true)
{
try
{
//save the file
var savePath = saveFileDialog.FileName;
File.Copy(binFile, savePath, true); //rename overwriting
mMainWindow.ToastNotify("File saved to " + savePath, ToastMessageStyles.Success);
}
catch (SystemException err)
{
mMainWindow.ToastNotify("Could not save the file due to: " + err.Message, ToastMessageStyles.Error);
}
}
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
}
return;
}
if (!File.Exists(gmiFile) || result.Item1 != 0)
{
mMainWindow.ToastNotify("Did not create expected GMI file for " + fullQuery + " in " + gmiFile, ToastMessageStyles.Error);
mMainWindow.ToggleContainerControlsForBrowser(true);
e.Cancel = true;
}
else
{
var userThemesFolder = ResourceFinder.LocalOrDevFolder(appDir, @"GmiConverters\themes", @"..\..\..\GmiConverters\themes");
var userThemeBase = Path.Combine(userThemesFolder, settings.Theme);
mMainWindow.ShowUrl(fullQuery, parseFile, htmlFile, userThemeBase, siteIdentity, e);
}
}
}