private void ReadCallBack(IAsyncResult asyncResult)
{
// Get the DownloadInfo object from AsyncResult.
DownloadInfo info = (DownloadInfo)asyncResult.AsyncState;
// Retrieve the ResponseStream that was set in RespCallback.
Stream responseStream = info.ResponseStream;
try
{
// Read info.BufferRead to verify that it contains data.
int bytesRead = responseStream.EndRead(asyncResult);
if (bytesRead > 0)
{
if (info.useFastBuffers)
{
System.Array.Copy(info.BufferRead, 0,
info.dataBufferFast, info.bytesProcessed,
bytesRead);
}
else
{
for (int b = 0; b < bytesRead; b++)
{
info.dataBufferSlow.Add(info.BufferRead[b]);
}
}
info.bytesProcessed += bytesRead;
//LibSys.StatusBar.Trace("IP: WebDownload:ReadCallBack() - " + info.baseName + " " + info.strUrl + " bytesRead=" + bytesRead);
// If a registered progress-callback, inform it of our download progress so far.
if (info.ProgressCallback != null)
{
info.ProgressCallback(info);
}
// Continue reading data until responseStream.EndRead returns –1.
IAsyncResult ar = responseStream.BeginRead(
info.BufferRead, 0, BUFFER_SIZE,
new AsyncCallback(ReadCallBack), info);
}
else
{
responseStream.Close();
allDone.Set();
}
}
catch (Exception e)
{
LibSys.StatusBar.Trace("Error: WebDownload:ResponseCallback " + info.baseName + " " + info.strUrl + " exception " + e.Message);
responseStream.Close();
allDone.Set();
}
return;
}
private void _progressCallback(DownloadInfo info)
{
//LibSys.StatusBar.Trace("IP: DloadProgressForm:progressCallback() - " + info.baseName + " - " + info.bytesProcessed + " of " + info.dataLength);
bytesDownloadedTextBox.Text = info.bytesProcessed.ToString("#,##0");
if (info.dataLength != -1)
{
progressBar.Minimum = 0;
progressBar.Maximum = info.dataLength;
progressBar.Value = info.bytesProcessed;
totalBytesTextBox.Text = info.dataLength.ToString("#,##0");
}
else
{
progressBar.Visible = false;
totalBytesTextBox.Text = "Total File Size Not Known";
}
}
private void completeCallback(object formObj, DownloadInfo info, string dldFileName, byte[] dataDownloaded)
{
#if DEBUG
LibSys.StatusBar.Trace("IP: DloadNoForm:completeCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
#endif
if (dataDownloaded == null || Project.is404(dataDownloaded))
{
string message = "failed: " + (dataDownloaded == null ? "no connection or no data" : "404 - file not found");
LibSys.StatusBar.Error(message);
}
else
{
FileStream fs = null;
try
{
fs = new FileStream(dldFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
LibSys.StatusBar.Trace("OK: file " + dldFileName + " created");
}
catch (Exception e)
{
string message = "failed: " + dldFileName + " - " + e.Message;
LibSys.StatusBar.Error(message);
}
finally
{
if (fs != null)
{
fs.Close();
}
}
}
m_completed = true;
}
private static void imageDownloadCompleteCallback( object otile, DownloadInfo info, string imageFileName, byte[] dataDownloaded )
{
#if DEBUG
LibSys.StatusBar.Trace("IP: TileCache:imageDownloadCompleteCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
#endif
Backdrop backdrop = (Backdrop)m_backdropCache[info.baseName];
Tile tile = (Tile)otile;
if(dataDownloaded == null || info.is404 || Project.is404(dataDownloaded))
{
string comment = dataDownloaded == null ? "no data" : "404";
if(backdrop != null)
{
backdrop.IsEmpty = true; // proven empty
}
ProgressMonitor.markComplete(info.monitored, false, comment);
}
else
{
FileStream fs = null;
try
{
string comment = "" + dataDownloaded.Length + " bytes";
fs = new FileStream(imageFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
#if DEBUG
LibSys.StatusBar.Trace("OK: file " + imageFileName + " created");
#endif
if(backdrop != null)
{
backdrop.Fill();
}
ProgressMonitor.markComplete(info.monitored, true, comment);
}
catch (Exception e)
{
#if DEBUG
LibSys.StatusBar.Error("" + e);
#endif
if(backdrop != null)
{
backdrop.IsEmpty = true; // proven empty
}
ProgressMonitor.markComplete(info.monitored, false, e.Message);
}
finally
{
if(fs != null)
{
fs.Close();
}
}
}
if(tile != null)
{
tile.backdropArrived(backdrop);
}
}
public static void init(string cgibinptrUrl)
{
m_mapsPath = Project.GetMapsTempPath();
LibSys.StatusBar.WriteLine("Actual location for mapping cache in " + m_mapsPath);
try
{
#if DEBUG
LibSys.StatusBar.Trace("IP: reaching cgibinptr URL='" + cgibinptrUrl + "'");
#endif
/*
* this code has long uncontrolled timeout, and has been replaced with the WebDownload-based code below
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(cgibinptrUrl);
if(Project.suspendKeepAlive)
{
req.KeepAlive = false;
}
WebResponse res = req.GetResponse();
Stream responseStream = res.GetResponseStream();
StreamReader reader = new StreamReader (responseStream);
*/
WebDownload webDL = new WebDownload(Project.webTimeoutMs); // default 7 seconds to time out
// Create the state object.
DownloadInfo info = new DownloadInfo();
info.baseName = "";
info.strUrl = cgibinptrUrl;
info.addMonitoredMethod = null;
byte[] downloadedData = null;
int tries = 1;
int maxTries = 1;
while (tries <= maxTries && downloadedData == null && !info.is404)
{
downloadedData = webDL.Download(info, ProgressCallback); // will timeout
#if DEBUG
if(downloadedData != null)
{
LibSys.StatusBar.Trace("IP: try " + tries + " TileCache:Download() - " + cgibinptrUrl + " delivered " + downloadedData.Length + " bytes" );
}
else
{
LibSys.StatusBar.Trace("IP: try " + tries + " TileCache:Download() - " + cgibinptrUrl + " delivered null bytes" );
}
#endif
tries++;
}
if(downloadedData == null || downloadedData.Length == 0)
{
LibSys.StatusBar.Error("failed to reach QuakeMap.com");
return; // Project.serverAvailable will be set to false, and no web attempts will take place.
}
LibSys.StatusBar.Trace("OK: reached QuakeMap.com");
string responseString = Project.ByteArrayToStr(downloadedData);
StringReader reader = new StringReader (responseString);
string upgrVersion = "";
bool ignoreUpgrade = false;
int state = 0;
string line;
while((line=reader.ReadLine()) != null)
{
try
{
switch(state)
{
case 0:
if(line.StartsWith("MAPSERVER="))
{
MappingServer ms = new MappingServer(line.Substring("MAPSERVER=".Length));
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - ms='" + ms + "'");
#endif
m_mappingServers.Add(ms);
}
else if(line.StartsWith("ZIPSERVER="))
{
ZipcodeServer zs = new ZipcodeServer(line.Substring("ZIPSERVER=".Length));
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - zs='" + zs + "'");
#endif
m_zipcodeServer = zs;
}
else if(line.StartsWith("TILERABOUT="))
{
Project.ABOUT_URL = line.Substring("TILERABOUT=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - about='" + Project.ABOUT_URL + "'");
#endif
}
else if(line.StartsWith("TILERORDER="))
{
Project.ORDER_URL = line.Substring("TILERORDER=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - order='" + Project.ORDER_URL + "'");
#endif
}
else if(line.StartsWith("TILERDLOAD="))
{
Project.DLOAD_URL = line.Substring("TILERDLOAD=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - download='" + Project.DLOAD_URL + "'");
#endif
}
else if(line.StartsWith("TILERUPDATE="))
{
Project.UPDATE_URL = line.Substring("TILERUPDATE=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - update='" + Project.UPDATE_URL + "'");
#endif
}
else if(line.StartsWith("TILERPRIVACY="))
{
Project.PRIVACY_URL = line.Substring("TILERPRIVACY=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - privacy='" + Project.PRIVACY_URL + "'");
#endif
}
else if(line.StartsWith("TILERPDA="))
{
Project.PDA_URL = line.Substring("TILERPDA=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - pda='" + Project.PDA_URL + "'");
#endif
}
else if(line.StartsWith("TILERHELP="))
{
Project.HELP_FILE_URL = line.Substring("TILERHELP=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - help='" + Project.HELP_FILE_URL + "'");
#endif
}
else if(line.StartsWith("TILERHDATE="))
{
string sDate = line.Substring("TILERHDATE=".Length);
Project.HELP_FILE_DATE = Convert.ToDateTime(sDate);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - helpFileDate='" + Project.HELP_FILE_DATE + "'");
#endif
}
else if(line.StartsWith("TILERMISC="))
{
Project.MISC_FOLDER_URL = line.Substring("TILERMISC=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - misc='" + Project.MISC_FOLDER_URL + "'");
#endif
}
else if(line.StartsWith("TILERSAMPLES="))
{
Project.SAMPLES_FOLDER_URL = line.Substring("TILERSAMPLES=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: TileCache() - samples='" + Project.SAMPLES_FOLDER_URL + "'");
#endif
}
else if(line.StartsWith("MESSAGE="))
{
state = 1;
Project.serverMessage = "";
}
else if(line.StartsWith("UPGR"))
{
upgrVersion = line.Substring(4);
if(Project.PROGRAM_VERSION_RELEASEDATE.Equals(upgrVersion))
{
ignoreUpgrade = true;
}
else
{
Project.upgradeMessage = "\n";
}
state = 2;
}
break;
case 1:
if(line.StartsWith("ENDMESSAGE"))
{
state = 0;
}
else
{
Project.serverMessage += (line + "\n");
}
break;
case 2:
if(line.StartsWith("ENDUPGR"))
{
state = 0;
}
else
{
if(!ignoreUpgrade)
{
Project.upgradeMessage += (line + "\n");
}
}
break;
}
}
catch {}
}
if(!Project.serverMessageLast.Equals(Project.serverMessage) && Project.upgradeMessage.Length == 0)
{
string message = Project.serverMessage; // + Project.upgradeMessage; upgrade message shows up in MainForm
LibSys.StatusBar.Trace(message);
if(greetingForm == null)
{
Project.MessageBox(null, message);
}
else
{
System.Windows.Forms.MessageBox.Show (greetingForm, message, Project.PROGRAM_NAME_HUMAN,
System.Windows.Forms.MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
}
Project.serverMessageLast = Project.serverMessage;
}
}
catch (Exception e)
{
LibSys.StatusBar.Error("exception: " + e.Message);
}
}
private static void gcDownloadCompleteCallback( object obj, DownloadInfo info, string gcFileName, byte[] dataDownloaded )
{
LibSys.StatusBar.Trace("IP: DlgWeeklyCacheImport:gcDownloadCompleteCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
if(m_stop)
{
ProgressMonitor.markComplete(info.monitored, false, "stopped");
return;
}
if(dataDownloaded == null || dataDownloaded.Length < 100 || Project.is404(dataDownloaded))
{
string comment = dataDownloaded == null ? "no data" : "404";
ProgressMonitor.markComplete(info.monitored, false, comment);
}
else
{
try
{
string comment = "" + dataDownloaded.Length + " bytes";
LibSys.StatusBar.Trace("OK: link " + info.strUrl + " delivered");
bool success = processGcPage(info.strUrl, dataDownloaded);
if(!success)
{
m_errorCount++;
}
ProgressMonitor.markComplete(info.monitored, true, comment);
}
catch (Exception e)
{
LibSys.StatusBar.Error("" + e.Message);
ProgressMonitor.markComplete(info.monitored, false, e.Message);
}
}
}
// good for LibSys.ThreadPool2
//public void Download(object state, DateTime requestEnqueueTime ) // good for LibSys.ThreadPool
public void Download(object state )
{
//LibSys.StatusBar.Trace("IP: " + threadCount + " DownloadThread:Download() - " + DownloadUrl);
if ( CompleteCallback != null && DownloadUrl != "" )
{
threadCount++;
WebDownload webDL = new WebDownload(0); // no timeout, except for natural TCP/IP stack one.
// Create the state object.
DownloadInfo info = new DownloadInfo();
info.baseName = _baseName;
info.strUrl = _downloadUrl;
info.addMonitoredMethod = addMonitoredMethod; // may be null
// Make sure progress monitor is created:
if(info.addMonitoredMethod != null)
{
info.monitored = new Monitored();
info.monitored.Comment = info.strUrl;
info.addMonitoredMethod(info.monitored);
}
byte[] downloadedData = null;
if(Project.serverAvailable)
{
int tries = 1;
while (true)
{
//try
//{
downloadedData = webDL.Download(info, ProgressCallback);
//}
//catch (Exception e)
//{
// LibSys.StatusBar.Error("try " + tries + " DownloadThread:Download() - " + DownloadUrl + " exception " + e.Message );
//}
#if DEBUG
if(downloadedData != null)
{
LibSys.StatusBar.Trace("IP: try " + tries + " DownloadThread:Download() - " + DownloadUrl + " delivered " + downloadedData.Length + " bytes" );
}
else
{
LibSys.StatusBar.Trace("IP: try " + tries + " DownloadThread:Download() - " + DownloadUrl + " delivered null bytes" );
}
#endif
tries++;
if(tries <= maxTries && downloadedData == null && !info.is404)
{
// if there was a server error (Web Exception, error 500), give it some time to get in shape before retrying:
Thread.Sleep(3000);
}
else
{
break;
}
}
}
threadCount--;
CompleteCallback( _tile, info, _fileName, downloadedData );
}
}
private void ResponseCallback(IAsyncResult ar)
{
// Get the DownloadInfo object from the async result were
// we're storing all of the temporary data and the download
// buffer.
DownloadInfo info = (DownloadInfo)ar.AsyncState;
//LibSys.StatusBar.Trace("IP: WebDownload:ResponseCallback() - " + info.baseName + " " + info.strUrl);
// Get the WebRequest from RequestState.
HttpWebRequest req = info.Request;
try
{
// Call EndGetResponse, which produces the WebResponse object
// that came from the request issued above.
WebResponse resp = req.EndGetResponse(ar);
// Find the data size from the headers.
string strContentLength = resp.Headers["Content-Length"];
//LibSys.StatusBar.Trace("IP: WebDownload:ResponseCallback() - ContentLength=" + strContentLength);
if (strContentLength != null)
{
info.dataLength = Convert.ToInt32(strContentLength);
info.dataBufferFast = new byte[info.dataLength];
}
else
{
info.useFastBuffers = false;
info.dataBufferSlow = new System.Collections.ArrayList(BUFFER_SIZE);
}
// Start reading data from the response stream.
Stream ResponseStream = resp.GetResponseStream();
// Store the response stream in RequestState to read
// the stream asynchronously.
info.ResponseStream = ResponseStream;
// we are about to actually read bytes from the pipe.
// Pass do.BufferRead to BeginRead.
IAsyncResult iarRead = ResponseStream.BeginRead(info.BufferRead,
0,
BUFFER_SIZE,
new AsyncCallback(ReadCallBack),
info);
//LibSys.StatusBar.Trace("IP: WebDownload:ResponseCallback() " + info.baseName + " " + info.strUrl + " done");
}
catch (WebException we)
{
if (we.Message.IndexOf("404") >= 0)
{
info.is404 = true; // signal that there is no need for more tries
}
else
{
LibSys.StatusBar.Trace("Error: WebDownload:ResponseCallback " + info.baseName + " " + info.strUrl + " Web exception " + we.Message);
}
allDone.Set();
}
catch (Exception e)
{
LibSys.StatusBar.Trace("Error: WebDownload:ResponseCallback " + info.baseName + " " + info.strUrl + " exception " + e.Message);
allDone.Set();
}
}
private void _progressCallback( DownloadInfo info )
{
//LibSys.StatusBar.Trace("IP: DloadProgressForm:progressCallback() - " + info.baseName + " - " + info.bytesProcessed + " of " + info.dataLength);
bytesDownloadedTextBox.Text = info.bytesProcessed.ToString("#,##0");
if ( info.dataLength != -1 )
{
progressBar.Minimum = 0;
progressBar.Maximum = info.dataLength;
progressBar.Value = info.bytesProcessed;
totalBytesTextBox.Text = info.dataLength.ToString("#,##0");
}
else
{
progressBar.Visible = false;
totalBytesTextBox.Text = "Total File Size Not Known";
}
}
private void progressCallback( DownloadInfo info )
{
// marshall the call to the thread where this form was created, so that
// component-related operations are not hanging the message pump
this.Invoke(new DownloadProgressHandler(_progressCallback), new object[] { info } );
}
private void progressCallback(DownloadInfo info)
{
// marshall the call to the thread where this form was created, so that
// component-related operations are not hanging the message pump
this.Invoke(new DownloadProgressHandler(_progressCallback), new object[] { info });
}
private void completeCallback( object formObj, DownloadInfo info, string dldFileName, byte[] dataDownloaded )
{
#if DEBUG
LibSys.StatusBar.Trace("IP: DloadNoForm:completeCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
#endif
if(dataDownloaded == null || Project.is404(dataDownloaded))
{
string message = "failed: " + (dataDownloaded == null ? "no connection or no data" : "404 - file not found");
LibSys.StatusBar.Error(message);
}
else
{
FileStream fs = null;
try
{
fs = new FileStream(dldFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
LibSys.StatusBar.Trace("OK: file " + dldFileName + " created");
}
catch (Exception e)
{
string message = "failed: " + dldFileName + " - " + e.Message;
LibSys.StatusBar.Error(message);
}
finally
{
if(fs != null)
{
fs.Close();
}
}
}
m_completed = true;
}
private static void eqDownloadCompleteCallback( object ouls, DownloadInfo info, string eqFileName, byte[] dataDownloaded )
{
UrlListStruct uls = (UrlListStruct)ouls;
LibSys.StatusBar.Trace("IP: - " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded from " + uls.url);
if(dataDownloaded == null || Project.is404(dataDownloaded))
{
string comment = dataDownloaded == null ? "no data" : "404";
// proven empty
LibSys.StatusBar.Error("failed to download from " + uls.url);
ProgressMonitor.markComplete(info.monitored, false, comment);
if(Project.eqUseOldData)
{
try // who knows if the file is there in the first place...
{
uls.processor(uls.url, eqFileName, uls.source);
}
catch {}
}
}
else
{
FileStream fs = null;
try
{
string comment = "" + dataDownloaded.Length + " bytes";
fs = new FileStream(eqFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
LibSys.StatusBar.Trace("IP: - file " + eqFileName + " created");
uls.processor(uls.url, eqFileName, uls.source);
ProgressMonitor.markComplete(info.monitored, true, comment);
}
catch (Exception e)
{
LibSys.StatusBar.Error("file " + eqFileName + " " + e.Message);
ProgressMonitor.markComplete(info.monitored, false, e.Message);
}
finally
{
if(fs != null)
{
fs.Close();
}
}
}
m_threadCount--;
//if(m_threadCount <= 0 && m_pictureManager != null) // last Complete
{
RefreshEarthquakesDisplayed();
m_pictureManager.Refresh();
}
}
//public void Download(object state, DateTime requestEnqueueTime ) // good for LibSys.ThreadPool
public void Download(object state) // good for LibSys.ThreadPool2
{
//LibSys.StatusBar.Trace("IP: " + threadCount + " DownloadThread:Download() - " + DownloadUrl);
if (CompleteCallback != null && DownloadUrl != "")
{
threadCount++;
WebDownload webDL = new WebDownload(0); // no timeout, except for natural TCP/IP stack one.
// Create the state object.
DownloadInfo info = new DownloadInfo();
info.baseName = _baseName;
info.strUrl = _downloadUrl;
info.addMonitoredMethod = addMonitoredMethod; // may be null
// Make sure progress monitor is created:
if (info.addMonitoredMethod != null)
{
info.monitored = new Monitored();
info.monitored.Comment = info.strUrl;
info.addMonitoredMethod(info.monitored);
}
byte[] downloadedData = null;
if (Project.serverAvailable)
{
int tries = 1;
while (true)
{
//try
//{
downloadedData = webDL.Download(info, ProgressCallback);
//}
//catch (Exception e)
//{
// LibSys.StatusBar.Error("try " + tries + " DownloadThread:Download() - " + DownloadUrl + " exception " + e.Message );
//}
#if DEBUG
if (downloadedData != null)
{
LibSys.StatusBar.Trace("IP: try " + tries + " DownloadThread:Download() - " + DownloadUrl + " delivered " + downloadedData.Length + " bytes");
}
else
{
LibSys.StatusBar.Trace("IP: try " + tries + " DownloadThread:Download() - " + DownloadUrl + " delivered null bytes");
}
#endif
tries++;
if (tries <= maxTries && downloadedData == null && !info.is404)
{
// if there was a server error (Web Exception, error 500), give it some time to get in shape before retrying:
Thread.Sleep(3000);
}
else
{
break;
}
}
}
threadCount--;
CompleteCallback(_tile, info, _fileName, downloadedData);
}
}
public byte[] Download(DownloadInfo info, DownloadProgressHandler progressCallback)
{
//LibSys.StatusBar.Trace("IP: downloading - " + info.baseName + " == " + info.strUrl);
allDoneLast = allDone;
// Ensure flag set correctly.
allDone.Reset();
m_baseName = info.baseName;
// Get the URI from the command line.
Uri httpSite = new Uri(info.strUrl);
// Create the request object.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(httpSite);
if (Project.suspendKeepAlive)
{
req.KeepAlive = false;
}
/*
* see Project.ApplyGlobalHTTPProxy()
*
* if(Project.useProxy)
* {
* WebProxy proxy = new WebProxy(Project.proxyServer, Project.proxyPort);
* req.Proxy = proxy;
* }
*/
#if DEBUG
LibSys.StatusBar.Trace("IP: downloading - " + info.baseName + " == " + info.strUrl + " after proxy: " + req.Proxy.GetProxy(httpSite));
#endif
// Put the request into the state object so it can be passed around.
info.Request = req;
// Assign the callbacks
info.ProgressCallback += progressCallback;
/*
* // this is to debug ThreadPool and ProgressMonitor
* if(info.strUrl.IndexOf("ashx") != -1)
* {
* info.dataLength = 20;
* int ccc = 0;
* while (ccc++ < 20)
* {
* Thread.Sleep(500);
* if ( info.ProgressCallback != null )
* {
* //LibSys.StatusBar.Trace("IP: loading... " + info.baseName);
* info.bytesProcessed = ccc;
* info.ProgressCallback(info);
* }
* }
* LibSys.StatusBar.Trace("OK: finished " + info.baseName);
* return null;
* }
*/
// Issue the async request.
IAsyncResult r = (IAsyncResult)req.BeginGetResponse(new AsyncCallback(ResponseCallback), info);
// Wait until the ManualResetEvent is set so that the application
// does not exit until after the callback is called.
bool hasSignal;
if (m_timeOutMs == 0)
{
hasSignal = allDone.WaitOne();
}
else
{
#if DEBUG
//LibSys.StatusBar.Trace("IP: WebDownload:Download() at WaitOne - " + DateTime.Now + " - " + m_baseName + " " + info.strUrl);
#endif
hasSignal = allDone.WaitOne(m_timeOutMs, false);
#if DEBUG
//LibSys.StatusBar.Trace("IP: WebDownload:Download() after WaitOne - " + DateTime.Now + " - " + hasSignal + " " + m_baseName + " " + info.strUrl);
#endif
}
if (!hasSignal)
{
allDone.Set();
info.hasTimedOut = true;
return(null);
}
// Pass back the downloaded information.
if (info.useFastBuffers)
{
return(info.dataBufferFast);
}
else
{
byte[] data = new byte[info.dataBufferSlow.Count];
for (int b = 0; b < info.dataBufferSlow.Count; b++)
{
data[b] = (byte)info.dataBufferSlow[b];
}
return(data);
}
}
private static void imageDownloadProgressCallback( DownloadInfo info )
{
//LibSys.StatusBar.Trace("IP: TileCache:imageDownloadProgressCallback() - " + info.baseName + " - " + info.bytesProcessed + " of " + info.dataLength);
if(info.monitored != null)
{
if(info.dataLength > 0)
{
info.monitored.Progress = info.bytesProcessed * 100 / info.dataLength;
ProgressMonitor.WorkValues();
}
else
{
info.monitored.Progress = 20;
}
}
}
private void completeCallback( object formObj, DownloadInfo info, string dldFileName, byte[] dataDownloaded )
{
// marshall the call to the thread where this form was created, so that
// component-related operations are not hanging the message pump
this.Invoke(new DownloadCompleteHandler(_completeCallback), new object[] { formObj, info, dldFileName, dataDownloaded } );
}
private void completeCallback(object formObj, DownloadInfo info, string dldFileName, byte[] dataDownloaded)
{
// marshall the call to the thread where this form was created, so that
// component-related operations are not hanging the message pump
this.Invoke(new DownloadCompleteHandler(_completeCallback), new object[] { formObj, info, dldFileName, dataDownloaded });
}
private void _completeCallback( object formObj, DownloadInfo info, string dldFileName, byte[] dataDownloaded )
{
#if DEBUG
LibSys.StatusBar.Trace("IP: DloadProgressForm:completeCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
#endif
Form form = (Form)formObj;
if(dataDownloaded == null || Project.is404(dataDownloaded))
{
string message = "failed: " + (dataDownloaded == null ? "no connection or no data" : "404 - file not found");
messageLabel.Text = message;
LibSys.StatusBar.Error(message);
if(m_closeIfFailed)
{
closeSoon();
}
}
else
{
if ( !progressBar.Visible )
{
progressBar.Visible = true;
progressBar.Minimum = 0;
progressBar.Value = progressBar.Maximum = 1;
totalBytesTextBox.Text = bytesDownloadedTextBox.Text;
}
FileStream fs = null;
try
{
fs = new FileStream(dldFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
LibSys.StatusBar.Trace("OK: file " + dldFileName + " created");
if(m_doRun)
{
// actually for help file only
Help.ShowHelp(form, dldFileName);
}
closeNow(null, EventArgs.Empty);
}
catch (Exception e)
{
string message = "failed: " + e.Message;
messageLabel.Text = message;
LibSys.StatusBar.Error(message);
if(m_closeIfFailed)
{
closeSoon();
}
}
finally
{
if(fs != null)
{
fs.Close();
}
}
}
}
private static void imageDownloadCompleteCallback( object otile, DownloadInfo info, string imageFileName, byte[] dataDownloaded )
{
#if DEBUG
LibSys.StatusBar.Trace("IP: TerraserverCache:imageDownloadCompleteCallback() - " + info.baseName + " " + (dataDownloaded == null? "null" : "" + dataDownloaded.Length) + " bytes loaded");
#endif
// tilesBeingLoadedCount = tilesBeingLoadedCount > 0 ? tilesBeingLoadedCount - 1 : 0;
Backdrop backdrop = (Backdrop)m_backdropCache[info.baseName];
TileTerra tile = (TileTerra)otile; // can be null for preload
if(dataDownloaded == null || dataDownloaded.Length < 100 || Project.is404(dataDownloaded))
{
string comment = dataDownloaded == null ? "no data" : "404";
if(backdrop != null)
{
backdrop.IsEmpty = true; // proven empty
}
ProgressMonitor.markComplete(info.monitored, false, comment);
}
/*
else if(dataDownloaded.Length == 8321) // cottage cheese
{
string comment = "cottage cheese tile";
backdrop.IsEmpty = true; // proven empty
tile.IsCottageCheese = true;
ProgressMonitor.markComplete(info.monitored, false, comment);
}
*/
else
{
FileStream fs = null;
try
{
string comment = "" + dataDownloaded.Length + " bytes";
if(dataDownloaded.Length == 8321) // cottage cheese
{
if(tile != null)
{
tile.IsCottageCheese = true;
}
comment = "cottage cheese tile";
}
fs = new FileStream(imageFileName, FileMode.Create);
fs.Write(dataDownloaded, 0, dataDownloaded.Length);
fs.Close();
fs = null;
#if DEBUG
LibSys.StatusBar.Trace("OK: file " + imageFileName + " created");
#endif
if(backdrop != null)
{
backdrop.Fill();
}
ProgressMonitor.markComplete(info.monitored, true, comment);
}
catch (Exception e)
{
#if DEBUG
LibSys.StatusBar.Error("" + e.Message);
#endif
if(backdrop != null)
{
backdrop.IsEmpty = true; // proven empty
}
ProgressMonitor.markComplete(info.monitored, false, e.Message);
}
finally
{
if(fs != null)
{
fs.Close();
}
}
}
if(tile != null)
{
tile.backdropArrived(backdrop);
}
}
public byte[] Download( DownloadInfo info, DownloadProgressHandler progressCallback )
{
//LibSys.StatusBar.Trace("IP: downloading - " + info.baseName + " == " + info.strUrl);
allDoneLast = allDone;
// Ensure flag set correctly.
allDone.Reset();
m_baseName = info.baseName;
// Get the URI from the command line.
Uri httpSite = new Uri(info.strUrl);
// Create the request object.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(httpSite);
if(Project.suspendKeepAlive)
{
req.KeepAlive = false;
}
/*
* see Project.ApplyGlobalHTTPProxy()
*
if(Project.useProxy)
{
WebProxy proxy = new WebProxy(Project.proxyServer, Project.proxyPort);
req.Proxy = proxy;
}
*/
#if DEBUG
LibSys.StatusBar.Trace("IP: downloading - " + info.baseName + " == " + info.strUrl + " after proxy: " + req.Proxy.GetProxy(httpSite));
#endif
// Put the request into the state object so it can be passed around.
info.Request = req;
// Assign the callbacks
info.ProgressCallback += progressCallback;
/*
// this is to debug ThreadPool and ProgressMonitor
if(info.strUrl.IndexOf("ashx") != -1)
{
info.dataLength = 20;
int ccc = 0;
while (ccc++ < 20)
{
Thread.Sleep(500);
if ( info.ProgressCallback != null )
{
//LibSys.StatusBar.Trace("IP: loading... " + info.baseName);
info.bytesProcessed = ccc;
info.ProgressCallback(info);
}
}
LibSys.StatusBar.Trace("OK: finished " + info.baseName);
return null;
}
*/
// Issue the async request.
IAsyncResult r = (IAsyncResult) req.BeginGetResponse(new AsyncCallback(ResponseCallback), info);
// Wait until the ManualResetEvent is set so that the application
// does not exit until after the callback is called.
bool hasSignal;
if(m_timeOutMs == 0)
{
hasSignal = allDone.WaitOne();
}
else
{
#if DEBUG
//LibSys.StatusBar.Trace("IP: WebDownload:Download() at WaitOne - " + DateTime.Now + " - " + m_baseName + " " + info.strUrl);
#endif
hasSignal = allDone.WaitOne(m_timeOutMs, false);
#if DEBUG
//LibSys.StatusBar.Trace("IP: WebDownload:Download() after WaitOne - " + DateTime.Now + " - " + hasSignal + " " + m_baseName + " " + info.strUrl);
#endif
}
if(!hasSignal)
{
allDone.Set();
info.hasTimedOut = true;
return null;
}
// Pass back the downloaded information.
if ( info.useFastBuffers )
{
return info.dataBufferFast;
}
else
{
byte[] data = new byte[ info.dataBufferSlow.Count ];
for ( int b=0; b<info.dataBufferSlow.Count; b++ )
{
data[b] = (byte) info.dataBufferSlow[b];
}
return data;
}
}
public static void init(string cgibinptrUrl)
{
try
{
#if DEBUG
LibSys.StatusBar.Trace("IP: reaching cgibinptr URL='" + cgibinptrUrl + "'");
#endif
WebDownload webDL = new WebDownload(Project.webTimeoutMs); // default 7 seconds to time out
// Create the state object.
DownloadInfo info = new DownloadInfo();
info.baseName = "";
info.strUrl = cgibinptrUrl;
info.addMonitoredMethod = null;
byte[] downloadedData = null;
int tries = 1;
int maxTries = 1;
while (tries <= maxTries && downloadedData == null && !info.is404)
{
downloadedData = webDL.Download(info, ProgressCallback); // will timeout
#if DEBUG
if(downloadedData != null)
{
LibSys.StatusBar.Trace("IP: try " + tries + " WebsiteInfo:Download() - " + cgibinptrUrl + " delivered " + downloadedData.Length + " bytes" );
}
else
{
LibSys.StatusBar.Trace("IP: try " + tries + " WebsiteInfo:Download() - " + cgibinptrUrl + " delivered null bytes" );
}
#endif
tries++;
}
if(downloadedData == null || downloadedData.Length == 0)
{
LibSys.StatusBar.Error("failed to reach QuakeMap.com");
return; // Project.serverAvailable will be set to false, and no web attempts will take place.
}
LibSys.StatusBar.Trace("OK: reached QuakeMap.com");
string responseString = Project.ByteArrayToStr(downloadedData);
StringReader reader = new StringReader (responseString);
string upgrVersion = "";
bool ignoreUpgrade = false;
int state = 0;
string line;
while((line=reader.ReadLine()) != null)
{
try
{
switch(state)
{
case 0:
if(line.StartsWith("GBWABOUT="))
{
Project.ABOUT_URL = line.Substring("GBWABOUT=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - about='" + Project.ABOUT_URL + "'");
#endif
HasReachedServer = true;
}
else if(line.StartsWith("GBWDLOAD="))
{
Project.DLOAD_URL = line.Substring("GBWDLOAD=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - download='" + Project.DLOAD_URL + "'");
#endif
}
else if(line.StartsWith("GBWUPDATE="))
{
Project.UPDATE_URL = line.Substring("GBWUPDATE=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - update='" + Project.UPDATE_URL + "'");
#endif
}
else if(line.StartsWith("GBWHELP="))
{
Project.HELP_FILE_URL = line.Substring("GBWHELP=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - help='" + Project.HELP_FILE_URL + "'");
#endif
}
else if(line.StartsWith("GBWHDATE="))
{
string sDate = line.Substring("GBWHDATE=".Length);
Project.HELP_FILE_DATE = Convert.ToDateTime(sDate);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - helpFileDate='" + Project.HELP_FILE_DATE + "'");
#endif
}
else if(line.StartsWith("GBWGPSBABELHOME="))
{
Project.GPSBABEL_URL = line.Substring("GBWGPSBABELHOME=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - GPSBabel Home='" + Project.GPSBABEL_URL + "'");
#endif
}
else if(line.StartsWith("GBWMISC="))
{
Project.MISC_FOLDER_URL = line.Substring("GBWMISC=".Length);
#if DEBUG
LibSys.StatusBar.Trace("OK: WebsiteInfo() - misc='" + Project.MISC_FOLDER_URL + "'");
#endif
}
else if(line.StartsWith("MESSAGE="))
{
state = 1;
Project.serverMessage = "";
}
else if(line.StartsWith("UPGR"))
{
upgrVersion = line.Substring(4);
if(Project.PROGRAM_VERSION_RELEASEDATE.Equals(upgrVersion))
{
ignoreUpgrade = true;
}
else
{
Project.upgradeMessage = "\n";
}
state = 2;
}
break;
case 1:
if(line.StartsWith("ENDMESSAGE"))
{
state = 0;
}
else
{
Project.serverMessage += (line + "\n");
}
break;
case 2:
if(line.StartsWith("ENDUPGR"))
{
state = 0;
}
else
{
if(!ignoreUpgrade)
{
Project.upgradeMessage += (line + "\n");
}
}
break;
}
}
catch {}
}
if(!Project.serverMessageLast.Equals(Project.serverMessage) && Project.upgradeMessage.Length == 0)
{
string message = Project.serverMessage; // + Project.upgradeMessage; upgrade message shows up in MainForm
LibSys.StatusBar.Trace(message);
Project.MessageBox(null, message);
Project.serverMessageLast = Project.serverMessage;
}
}
catch (Exception e)
{
LibSys.StatusBar.Error("exception: " + e.Message);
}
}