public virtual bool Process(HttpServer server, HttpRequest request, HttpResponse response)
{
string fn = server.GetFilename(request);
if(!File.Exists(fn)){
response.ReturnCode = 404;
response.Content = "File not found.";
return true;
}
string ext = Path.GetExtension(fn);
string mime = (string)MimeTypes[ext];
if(mime == null) mime = "application/octet-stream";
response.ContentType = mime;
try {
if(mime.Substring(0, 5) == "text/") {
// Mime type 'text' is substituted
StreamReader sr = new StreamReader(fn);
response.Content = sr.ReadToEnd();
sr.Close();
if(substitute){
// Do substitutions
Regex regex = new Regex(@"\<\%(?<tag>[^>]+)\>");
lock(this){
req = request;
response.Content = regex.Replace(response.Content, new MatchEvaluator(RegexMatch));
}
}
} else {
FileStream fs = File.Open(fn, FileMode.Open);
byte[] buf = new byte[fs.Length];
fs.Read(buf, 0, buf.Length);
fs.Close();
response.RawContent = buf;
}
} catch(Exception e) {
response.ReturnCode = 500;
response.Content = "Error reading file: "+e;
return true;
}
return true;
}
public override bool Process(HttpServer server, HttpRequest request, HttpResponse response)
{
if (request.Page.StartsWith("/status"))
{
response.ContentType = (string)SubstitutingFileReader.MimeTypes[".html"];
response.ReturnCode = 200;
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.WriteStartObject();
jsonWriter.WritePropertyName("twain_source");
jsonWriter.WriteValue(Properties.Settings.Default.twain_source);
jsonWriter.WriteComment("ID of selected TWAIN source");
jsonWriter.WritePropertyName("x");
jsonWriter.WriteValue(Properties.Settings.Default.x);
jsonWriter.WriteComment("The x-coordinate of the upper-left corner of the crop rectangle");
jsonWriter.WritePropertyName("y");
jsonWriter.WriteValue(Properties.Settings.Default.y);
jsonWriter.WriteComment("The y-coordinate of the upper-left corner of the crop rectangle");
jsonWriter.WritePropertyName("w");
jsonWriter.WriteValue(Properties.Settings.Default.w);
jsonWriter.WriteComment("The width of the crop rectangle");
jsonWriter.WritePropertyName("h");
jsonWriter.WriteValue(Properties.Settings.Default.h);
jsonWriter.WriteComment("The height of the crop rectangle");
jsonWriter.WritePropertyName("encode");
jsonWriter.WriteValue(Properties.Settings.Default.encode);
jsonWriter.WriteComment("Encoding setup");
jsonWriter.WritePropertyName("server_autostart");
jsonWriter.WriteValue(Properties.Settings.Default.server_autostart);
jsonWriter.WriteComment("Shall web server be started automatically");
jsonWriter.WritePropertyName("start_minimized");
jsonWriter.WriteValue(Properties.Settings.Default.start_minimized);
jsonWriter.WriteComment("Shall application start minimized");
jsonWriter.WritePropertyName("port");
jsonWriter.WriteValue(Properties.Settings.Default.port);
jsonWriter.WriteComment("Web server listening port");
jsonWriter.WritePropertyName("dpi");
jsonWriter.WriteValue(Properties.Settings.Default.dpi);
jsonWriter.WriteComment("DPI");
jsonWriter.WritePropertyName("colour");
jsonWriter.WriteValue(Properties.Settings.Default.colour == ColourSetting.Colour ? "full" : Properties.Settings.Default.colour == ColourSetting.GreyScale ? "greyscale" : "blackandwhite");
jsonWriter.WriteComment("Colouring setup");
jsonWriter.WritePropertyName("adf");
jsonWriter.WriteValue(Properties.Settings.Default.useADF);
jsonWriter.WriteComment("Shall ADF be used?");
jsonWriter.WriteEndObject();
}
response.Content = sb.ToString();
return true;
}
return false;
}
public bool Process(HttpServer server, HttpRequest req, HttpResponse resp)
{
#if DEBUG
Console.WriteLine("Processing "+req);
#endif
server.RequestSession(req);
StringBuilder sb = new StringBuilder();
sb.Append("<h3>Session</h3>");
sb.Append("<p>ID: "+req.Session.ID+"<br>User: "******"<h3>Header</h3>");
sb.Append("Method: "+req.Method+"; URL: '"+req.Url+"'; HTTP version "+req.HttpVersion+"<p>");
foreach(KeyValuePair<string, string> ide in req.Header) sb.Append(" "+ide.Key +": "+ide.Value+"<br>");
sb.Append("<h3>Cookies</h3>");
foreach(KeyValuePair<string, string> ide in req.Cookies) sb.Append(" "+ide.Key +": "+ide.Value+"<br>");
sb.Append("<h3>Query</h3>");
foreach(KeyValuePair<string, string> ide in req.Query) sb.Append(" "+ide.Key +": "+ide.Value+"<br>");
sb.Append("<h3>Content</h3>");
sb.Append(req.Content);
resp.Content = sb.ToString();
return true;
}
public override bool Process(HttpServer server, HttpRequest request, HttpResponse response)
{
if (request.Page.StartsWith("/sources"))
{
response.ContentType = (string)SubstitutingFileReader.MimeTypes[".html"];
response.ReturnCode = 200;
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
using (JsonWriter jsonWriter = new JsonTextWriter(sw))
{
jsonWriter.Formatting = Formatting.Indented;
jsonWriter.WriteStartObject();
foreach (string name in this.mainForm.twain.SourceNames)
{
jsonWriter.WritePropertyName(name);
jsonWriter.WriteValue(System.Web.HttpUtility.UrlEncode(name));
}
jsonWriter.WriteEndObject();
}
response.Content = sb.ToString();
return true;
}
return false;
}
public override bool Process(HttpServer server, HttpRequest request, HttpResponse response)
{
if (request.Page.StartsWith("/scan"))
{
string source = Properties.Settings.Default.twain_source;
int x = Properties.Settings.Default.x;
int y = Properties.Settings.Default.y;
int w = Properties.Settings.Default.w;
int h = Properties.Settings.Default.h;
string encode = Properties.Settings.Default.encode;
int dpi = Properties.Settings.Default.dpi;
bool adf = Properties.Settings.Default.useADF;
bool pdf = Properties.Settings.Default.pdf;
ColourSetting colour = Properties.Settings.Default.colour;
try
{
if (request.Query.ContainsKey("source"))
{
source = System.Web.HttpUtility.UrlDecode(request.Query["source"]);
if (!this.mainForm.twain.SourceNames.Contains(source))
{
throw new Exception("Unknown source: " + source);
}
}
if (request.Query.ContainsKey("encode"))
{
encode = request.Query["encode"];
if (!"base64".Equals(encode) && !"".Equals(encode))
throw new Exception("Unknown encoding: " + encode);
}
x = ScanHandler.getNumber(request, x, "x");
y = ScanHandler.getNumber(request, y, "y");
w = ScanHandler.getNumber(request, w, "w");
h = ScanHandler.getNumber(request, h, "h");
dpi = ScanHandler.getNumber(request, dpi, "dpi");
if (!this.mainForm.dpiComboBox.Items.Contains("" + dpi))
throw new Exception("Unsupported DPI value: " + dpi);
adf = request.Query.ContainsKey("adf") ? "1".Equals(request.Query["adf"]) : adf;
pdf = request.Query.ContainsKey("pdf") ? "1".Equals(request.Query["pdf"]) : adf;
if (request.Query.ContainsKey("colour"))
{
string col = request.Query["colour"];
if ("full".Equals(col)) colour = ColourSetting.Colour;
else if ("greyscale".Equals(col)) colour = ColourSetting.GreyScale;
else if ("blackandwhite".Equals(col)) colour = ColourSetting.BlackAndWhite;
else throw new Exception("Unknown colour settings: " + col);
}
}
catch (Exception e)
{
response.ReturnCode = 500;
response.Content = "Invalid URL arguments: " + e.Message;
return true;
}
bool testing = request.Query.ContainsKey("test") && "1".Equals(request.Query["test"]);
if ("".Equals(source) && !testing)
{
request.Host = ".";
request.Page = "/noscanner.html";
response.ReturnCode = 500;
return base.Process(server, request, response);
}
if (this.mainForm.scanSemaphore.WaitOne(0))
{
this.mainForm.scanData.Clear();
this.mainForm.dataReady = false;
if (testing)
{
try
{
this.mainForm.scanData.Add(new Bitmap("./TestImage.png"));
}
catch (Exception)
{
// left blank intentionally
}
this.mainForm.dataReady = true;
this.mainForm.scanSemaphore.Release();
}
else
{
this.mainForm.scanTarget = ScanTarget.WEB;
this.mainForm.Invoke(new ScanDelegate(Scan), new object[] { source, dpi, colour, adf });
DateTime startTime = DateTime.Now;
TimeSpan elapsed;
do
{
Thread.Sleep(100);
elapsed = DateTime.Now.Subtract(startTime);
} while (!this.mainForm.dataReady && elapsed.TotalMinutes < 5);
}
if (this.mainForm.dataReady && this.mainForm.scanData.Count > 0)
{
response.ReturnCode = 200;
using (MemoryStream ms = new MemoryStream())
{
if (!adf)
{
ScanHandler.SaveImage(x, y, w, h, ms, this.mainForm.scanData.First(), pdf);
}
else
{
ScanHandler.SaveImage(x, y, w, h, ms, this.mainForm.scanData, pdf);
}
if ("base64".Equals(encode))
{
response.ContentType = "text/plain";
response.Encoding = "base64";
response.Content = Convert.ToBase64String(ms.ToArray());
}
else
{
response.ContentType = (adf || pdf) ? "application/octet-stream" : (string)SubstitutingFileReader.MimeTypes[".png"];
response.Encoding = null;
response.RawContent = ms.ToArray();
}
}
}
else
{
request.Host = ".";
request.Page = "/failed.html";
response.ReturnCode = 500;
return base.Process(server, request, response);
}
}
else
{
request.Host = ".";
request.Page = "/blocked.html";
response.ReturnCode = 500;
return base.Process(server, request, response);
}
return true;
}
return false;
}
public override bool Process(HttpServer server, HttpRequest request, HttpResponse response)
{
request.Host = ".";
request.Page = "/home.html";
return base.Process(server, request, response);
}
void StopServer()
{
if (this.server != null)
{
this.server.Server.Close();
this.server = null;
}
this.serverStatusText.Text = "ScanIt offline";
this.trayIcon.Text = "ScanIt offline";
this.startServerButton.Text = "Start server";
this.startServerToolStripMenuItem.Text = "Start server";
}
void StartServer()
{
if (this.server != null)
{
this.StopServer();
}
this.server = new HttpServer(new Server(Properties.Settings.Default.port));
this.server.Hostmap.Add(".", ".");
this.server.Handlers.Add(new BasicHandler());
this.server.Handlers.Add(new SourceListHandler(this));
this.server.Handlers.Add(new StatusHandler());
this.server.Handlers.Add(new ScanHandler(this));
string text = string.Format("ScanIt online {0}", Properties.Settings.Default.port);
this.serverStatusText.Text = text;
this.trayIcon.Text = text;
this.startServerButton.Text = "Stop server";
this.startServerToolStripMenuItem.Text = "Stop server";
}