public static TransitAccountEventICALEmitter Parse(string url, TimeSpan utcoffset, string useragent)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url.Replace("webcal:", "http:"));
request.UserAgent = useragent;
WebResponse response = request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
TransitAccountEventICALEmitter emitter = new TransitAccountEventICALEmitter();
emitter.UtcOffset = utcoffset;
Semaview.Shared.ICalParser.Parser parser = new Semaview.Shared.ICalParser.Parser(sr, emitter);
parser.Parse();
return(emitter);
}
protected void TestMeetup()
{
string url = "http://dessert.meetup.com/3/calendar/7801237/ical/Cupcake+Social+2.0/";
Console.WriteLine(SnCore.Tools.Web.Renderer.UrlEncode(url));
TransitAccountEventICALEmitter emitter = new TransitAccountEventICALEmitter();
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
WebResponse response = request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
Parser parser = new Parser(sr, emitter);
parser.Parse();
Console.WriteLine(emitter.AccountEvent.Name);
Console.WriteLine(emitter.AccountEvent.Description);
Console.WriteLine(emitter.AccountEvent.StartDateTime);
}
protected void TestEventful()
{
// string url = "http://eventful.com/ical/events/E0-001-003054648-3/E0-001-003054648-3.ics";
string url = "http://eventful.com/ical/events/E0-001-002992261-4/E0-001-002992261-4.ics";
Console.WriteLine(SnCore.Tools.Web.Renderer.UrlEncode(url));
TransitAccountEventICALEmitter emitter = new TransitAccountEventICALEmitter();
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
WebResponse response = request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
Parser parser = new Parser(sr, emitter);
parser.Parse();
Console.WriteLine(emitter.AccountEvent.Name);
Console.WriteLine(emitter.AccountEvent.Description);
Console.WriteLine(emitter.AccountEvent.StartDateTime);
}
/// <summary>
/// Parse the iCal using supplied TextReader and base URI
/// </summary>
public void Parse(TextReader reader, string baseUri)
{
try {
string strippedContent = Regex.Replace(reader.ReadToEnd(), @"\r\n ", "");
StringReader strippedReader = new StringReader(strippedContent);
Semaview.Shared.ICalParser.Parser icalParser = new Semaview.Shared.ICalParser.Parser(strippedReader, itsEmitter);
icalParser.Parse();
itsXsltParser.NewStatement += new SemPlan.Spiral.Core.StatementHandler(XsltParserNewStatement);
itsXsltParser.Parse(new StringReader(itsEmitter.Rdf), baseUri);
itsXsltParser.NewStatement -= new SemPlan.Spiral.Core.StatementHandler(XsltParserNewStatement);
}
catch (Exception e) {
Console.WriteLine(itsEmitter.Rdf);
throw new ParserException("Could not parse content because " + e);
}
}
public static TransitAccountEventICALEmitter Parse(string url, TimeSpan utcoffset, string useragent)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url.Replace("webcal:", "http:"));
request.UserAgent = useragent;
WebResponse response = request.GetResponse();
StreamReader sr = new StreamReader(response.GetResponseStream());
TransitAccountEventICALEmitter emitter = new TransitAccountEventICALEmitter();
emitter.UtcOffset = utcoffset;
Semaview.Shared.ICalParser.Parser parser = new Semaview.Shared.ICalParser.Parser(sr, emitter);
parser.Parse();
return emitter;
}
static void Main( string[] args )
{
if( args.Length < 1 )
{
Usage();
}
else
{
ArrayList icalFiles = new ArrayList();
bool startedFilesPart = false;
bool supressErrors = false;
bool outputSameName = false;
string rdfFilename = null;
int urlcounter = 0;
// first process the flags and arguments
for( int i = 0; i < args.Length; i++ )
{
string arg = args[i];
if( arg.StartsWith( "-" ) && !startedFilesPart )
{
if( arg.Length == 2 )
{
switch( arg[1] )
{
case 'c':
Copyright();
return;
case 'h':
Usage();
return;
case 'p':
supressErrors = true;
break;
case 'x':
outputSameName = true;
break;
case 'f':
if( i+1 >= args.Length )
{
Usage();
return;
}
rdfFilename = args[ ++i ];
break;
}
}
else
{
Usage();
return;
}
}
else
{
startedFilesPart = true; // ignore any options in the
icalFiles.Add( arg );
}
}
// deactivate the -f flag if there are more than one icsfiles - assume they want
// file output, which will mean the -x flag...
if( rdfFilename != null && icalFiles.Count > 1 )
{
rdfFilename = null;
outputSameName = true;
}
// now loop through the ics files and translate them to RDF
foreach( string file in icalFiles )
{
TextReader reader;
bool isURL = false;
try
{
if( file.StartsWith( "http:" ))
{
isURL = true;
HttpWebRequest req = (HttpWebRequest)WebRequest.Create( file );
req.Proxy = WebProxy.GetDefaultProxy();
WebResponse resp = req.GetResponse();
// TODO: Found a 'bug' or 'feature' (depending on perspective), of the StreamReader.Peek()
// method. It does not work on streams that are socket (network) based. It will
// report EOF at the end of packet, instead of end of file. So - let's read in the
// entire stream into memory, and rework the Scanner class so that it doesn't use
// Peek().
StreamReader tempReader = new StreamReader( resp.GetResponseStream( ));
reader = new StringReader( tempReader.ReadToEnd( ));
}
else
{
reader = new StreamReader( file );
}
}
catch( Exception e )
{
Console.Error.WriteLine( "Error encountered processing file: " + file + "\n message: " + e.Message );
Usage();
return;
}
RDFEmitter emitter = new RDFEmitter( );
Parser parser = new Parser( reader, emitter );
parser.Parse( );
// check for errors
if( !supressErrors && parser.HasErrors )
{
foreach( ParserError error in parser.Errors )
{
Console.Error.WriteLine( "Error on line: " + error.Linenumber + ". " + error.Message );
}
}
else
{
// output it!
TextWriter writer;
if( rdfFilename != null )
{
writer = new StreamWriter( rdfFilename );
}
else if( outputSameName )
{
string outfile, infile;
if( isURL )
{
outfile = "calendar" + urlcounter + ".rdf";
urlcounter++;
}
else
{
int fslashindex = file.LastIndexOf( '/' );
int bslashindex = file.LastIndexOf( '\\' );
int slashindex = Math.Max( fslashindex, bslashindex );
if( slashindex >= 0 )
{
infile = file.Substring( slashindex+1 );
}
else
{
infile = file;
}
int dotindex = infile.LastIndexOf( '.' );
if( dotindex == -1 )
{
outfile = infile + ".rdf";
}
else
{
outfile = infile.Substring( 0, dotindex) + ".rdf";
}
}
writer = new StreamWriter( outfile );
}
else
{
writer = Console.Out;
}
writer.Write( emitter.Rdf );
}
}
}
}
