/// <summary>
/// Process the specified URL.
/// </summary>
/// <param name="url">The URL to process.</param>
/// <param name="optionList">Whcih option list to process.</param>
public void Process(Uri url, int optionList)
{
String value = "";
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
StringBuilder buffer = new StringBuilder();
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "a", true) == 0)
{
value = tag["href"];
Uri u = new Uri(url, value.ToString());
value = u.ToString();
buffer.Length = 0;
}
else if (String.Compare(tag.Name, "/a", true) == 0)
{
ProcessOption(buffer.ToString(), value);
}
}
else
{
buffer.Append((char)ch);
}
}
}
/// <summary>
/// Process the specified URL and download the images.
/// </summary>
/// <param name="url">The URL to process.</param>
/// <param name="saveTo">A directory to save the images to.</param>
public void Process(Uri url, String saveTo)
{
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "img", true) == 0)
{
String src = tag["src"];
Uri u = new Uri(url, src);
String filename = ExtractFile(u);
String saveFile = Path.Combine(saveTo, filename);
WebRequest http2 = HttpWebRequest.Create(u);
HttpWebResponse response2 = (HttpWebResponse)http2.GetResponse();
this.DownloadBinaryFile(response2, saveFile);
response2.Close();
}
}
}
}
/// <summary>
/// This method looks for each of the <option> tags that contain
/// a link to each of the pages. For each page found the
/// downloadArticlePage method is called.
/// </summary>
public void Process()
{
Uri url = new Uri("http://www.httprecipes.com/1/9/article.php");
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 30000;
WebResponse response = http.GetResponse();
Stream stream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(stream);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "option", true) == 0)
{
String str = tag["value"];
Uri u = new Uri(url, str);
Console.WriteLine(DownloadArticlePage(u));
}
}
}
}
static string Categoria(ParseHTML analizador)
{
int ch;
bool leer = false;
StringBuilder buffer = new StringBuilder();
while ((ch = analizador.Read()) != -1)
{
if (ch == 0)
{
if (analizador.Tag.Name == "a")
{
leer = true;
}
else if (analizador.Tag.Name == "/a")
{
return(buffer.ToString());
}
}
else if (leer)
{
buffer.Append((char)ch);
}
}
return("no se encontro la categoria :S");
}
/// <summary>
/// Process the specified URL and extract data from all of the subpages
/// that this page links to.
/// </summary>
/// <param name="url">The URL to process.</param>
public void Process(Uri url)
{
String value = "";
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "a", true) == 0)
{
value = tag["href"];
Uri u = new Uri(url, value.ToString());
value = u.ToString();
ProcessSubPage(u);
}
}
}
}
static string Descripcion(ParseHTML analizador)
{
int ch;
StringBuilder buffer = new StringBuilder();
while ((ch = analizador.Read()) > 0)
{
buffer.Append((char)ch);
}
return(buffer.ToString());
}
/**
* Called to extract a list from the specified URL.
* @param url The URL to extract the list from.
* @param listType What type of list, specify its beginning tag (i.e. <UL>)
* @param optionList Which list to search, zero for first.
* @throws IOException Thrown if an IO exception occurs.
*/
public void Process(Uri url, String listType, int optionList)
{
String listTypeEnd = listType + "/";
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
StringBuilder buffer = new StringBuilder();
bool capture = false;
Advance(parse, listType, optionList);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "li", true) == 0)
{
if (buffer.Length > 0)
{
ProcessItem(buffer.ToString());
}
buffer.Length = 0;
capture = true;
}
else if (String.Compare(tag.Name, "/li", true) == 0)
{
Console.WriteLine(buffer.ToString());
ProcessItem(buffer.ToString());
buffer.Length = 0;
capture = false;
}
else if (String.Compare(tag.Name, listTypeEnd, true) == 0)
{
break;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
}
public string Leer(string tag, string atributo)
{
int ch;
while ((ch = html.Read()) != -1)
{
if (ch == 0)
{
if (html.Tag.Name == tag)
{
return(html.Tag[atributo]);
}
}
}
return(null);
}
/// <summary>
/// Versión mejorada para avanzar a un tag que cumpla cierto atributo
/// </summary>
/// <param name="analizador">El parseHTML que queramos avanzar en</param>
/// <param name="etiqueta">La etiqueta a la que queramos llegar</param>
/// <param name="nombreAtributo">El nombre del atributo como "src"</param>
/// <param name="atributo">el propio atributo como "/imagenes/...</param>
/// <returns></returns>
public static bool AvanzarA(ParseHTML analizador, String etiqueta, String nombreAtributo, String atributo)
{
int ch;
while ((ch = analizador.Read()) != -1)
{
if (ch == 0)
{
if (analizador.Tag.Name == etiqueta && analizador.Tag[nombreAtributo] == atributo)
{
return(true);
}
}
}
return(false);
}
static string Imagen(ParseHTML analizador)
{
int ch;
while ((ch = analizador.Read()) != -1)
{
if (ch == 0)
{
if (analizador.Tag.Name == "img")
{
return(analizador.Tag["src"]);
}
}
}
return("no se encontro una imagen :S");
}
static string Enlace(ParseHTML analizador)
{
int ch;
while ((ch = analizador.Read()) != -1)
{
if (ch == 0)
{
if (analizador.Tag.Name == "a")
{
return(analizador.Tag["href"]);
}
}
}
return(null);
}
private ICollection <Uri> DoSearch(Uri url)
{
ICollection <Uri> result = new List <Uri>();
// submit the search
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
using (Stream istream = response.GetResponseStream())
{
ParseHTML parse = new ParseHTML(istream);
StringBuilder buffer = new StringBuilder();
bool capture = false;
// parse the results
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (tag.Name.Equals("Url", StringComparison.CurrentCultureIgnoreCase))
{
buffer.Length = 0;
capture = true;
}
else if (tag.Name.Equals("/Url", StringComparison.CurrentCultureIgnoreCase))
{
result.Add(new Uri(buffer.ToString()));
buffer.Length = 0;
capture = false;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
}
response.Close();
return(result);
}
static string Descripcion(ParseHTML analizador)
{
int ch;
StringBuilder sb1 = new StringBuilder();
while ((ch = analizador.Read()) != -1)
{
if (ch > 0)
{
sb1.Append((char)ch);
}
else
{
return(sb1.ToString().Replace("á", "a").Replace("é", "e").Replace("í", "i").Replace("ó", "o").Replace("ú", "u").Replace("ñ", "n").Replace("É", "E").Replace("Á", "A").Replace("Í", "Í").Replace("Ó", "O").Replace("Ú", "Ú").Replace("'", ""));
}
}
return(null);
}
static string Titulo(ParseHTML analizador)
{
int ch;
StringBuilder sb1 = new StringBuilder();
while ((ch = analizador.Read()) != -1)
{
if (ch > 0)
{
sb1.Append((char)ch);
}
else
{
return(sb1.ToString());
}
}
return(null);
}
static string Titulo(ParseHTML analizador)
{
int ch;
StringBuilder buffer = new StringBuilder();
while ((ch = analizador.Read()) != -1)
{
if (ch > 0)
{
buffer.Append((char)ch);
}
else
{
return(buffer.ToString());
}
}
return("No se encontro el titulo :S");
}
/// <summary>
/// Advance to the specified HTML tag.
/// </summary>
/// <param name="parse">The HTML parse object to use.</param>
/// <param name="tag">The HTML tag.</param>
/// <param name="count">How many tags like this to find.</param>
/// <returns>True if found, false otherwise.</returns>
private bool Advance(ParseHTML parse, String tag, int count)
{
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
if (String.Compare(parse.Tag.Name, tag, true) == 0)
{
count--;
if (count <= 0)
{
return(true);
}
}
}
}
return(false);
}
/// <summary>
/// Check the specified URL for a birth year. This will occur if one
/// sentence is found that has the word born, and a numeric value less
/// than 3000.
/// </summary>
/// <param name="url">The URL to check.</param>
public void CheckURL(Uri url)
{
int ch;
StringBuilder sentence = new StringBuilder();
try
{
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML html = new ParseHTML(istream);
do
{
ch = html.Read();
if ((ch != -1) && (ch != 0))
{
if (ch == '.')
{
String str = sentence.ToString();
int year = ExtractBirth(str);
if ((year > 1) && (year < 3000))
{
Console.WriteLine("URL supports year: " + year);
IncreaseYear(year);
}
sentence.Length = 0;
}
else
{
sentence.Append((char)ch);
}
}
} while (ch != -1);
}
catch (WebException)
{
}
catch (IOException)
{
}
}
/// <summary>
/// Called to download the text from a page. If any JavaScript
/// include is found, the text from that page is read too.
/// </summary>
public void Process()
{
Uri url = new Uri("http://www.httprecipes.com/1/9/includes.php");
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 30000;
WebResponse response = http.GetResponse();
Stream stream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(stream);
StringBuilder buffer = new StringBuilder();
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "script", true) == 0 && tag["src"] != null)
{
String src = tag["src"];
Uri u = new Uri(url, src);
String include = DownloadPage(u);
buffer.Append("<script>");
buffer.Append(include);
buffer.Append("</script>");
}
else
{
buffer.Append(tag.ToString());
}
}
else
{
buffer.Append((char)ch);
}
}
Console.WriteLine(buffer.ToString());
}
/// <summary>
/// Process the specified URL and extract the option list there.
/// </summary>
/// <param name="url">The URL to process.</param>
/// <param name="optionList">Which option list to process, zero for first.</param>
public void Process(Uri url, int optionList)
{
String value = "";
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
StringBuilder buffer = new StringBuilder();
Advance(parse, "select", optionList);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "option") == 0)
{
value = tag["value"];
buffer.Length = 0;
}
else if (String.Compare(tag.Name, "/option") == 0)
{
ProcessOption(buffer.ToString(), value);
}
else if (String.Compare(tag.Name, "/choice") == 0)
{
break;
}
}
else
{
buffer.Append((char)ch);
}
}
}
/// <summary>
/// This method looks for a link tag at the specified URL. If a link
/// tag is found that specifies an RSS feed, then that feed is
/// displayed.
/// </summary>
/// <param name="url">The URL of the web site.</param>
public void Process(Uri url)
{
String href = null;
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 30000;
WebResponse response = http.GetResponse();
Stream stream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(stream);
int ch;
do
{
ch = parse.Read();
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "link", true) == 0)
{
String type = tag["type"];
if (type != null && type.IndexOf("rss") != -1)
{
href = tag["href"];
}
}
}
} while (ch != -1);
if (href == null)
{
Console.WriteLine("No RSS link found.");
}
else
{
ProcessRSS(new Uri(href));
}
}
static string Categoria(ParseHTML analizador)
{
int ch;
bool x = false;
while ((ch = analizador.Read()) != -1)
{
if (ch == 0)
{
if (analizador.Tag.Name == "a")
{
if (x)
{
return(analizador.Tag["href"]);
}
else
{
x = true;
}
}
}
}
return(null);
}
static string Imagen(ParseHTML analizador)
{
int ch, x = 0;
while ((ch = analizador.Read()) != -1)
{
if (ch == 0)
{
if (analizador.Tag.Name == "img")
{
if (x == 3)
{
Console.WriteLine(analizador.Tag["src"]);
return(analizador.Tag["src"]);
}
else
{
x++;
}
}
}
}
return(null);
}
/// <summary>
/// This method will download an amortization table for the
/// specified parameters.
/// </summary>
/// <param name="interest">The interest rate for the loan.</param>
/// <param name="term">The term(in months) of the loan.</param>
/// <param name="principle">The principle amount of the loan.</param>
public void process(double interest, int term, int principle)
{
Uri url = new Uri("http://www.httprecipes.com/1/9/loan.php");
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 30000;
http.ContentType = "application/x-www-form-urlencoded";
http.Method = "POST";
Stream ostream = http.GetRequestStream();
FormUtility form = new FormUtility(ostream, null);
form.Add("interest", "" + interest);
form.Add("term", "" + term);
form.Add("principle", "" + principle);
form.Complete();
ostream.Close();
WebResponse response = http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
StringBuilder buffer = new StringBuilder();
List <String> list = new List <String>();
bool capture = false;
Advance(parse, "table", 3);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "tr", true) == 0)
{
list.Clear();
capture = false;
buffer.Length = 0;
}
else if (String.Compare(tag.Name, "/tr", true) == 0)
{
if (list.Count > 0)
{
ProcessTableRow(list);
list.Clear();
}
}
else if (String.Compare(tag.Name, "td", true) == 0)
{
if (buffer.Length > 0)
{
list.Add(buffer.ToString());
}
buffer.Length = 0;
capture = true;
}
else if (String.Compare(tag.Name, "/td", true) == 0)
{
list.Add(buffer.ToString());
buffer.Length = 0;
capture = false;
}
else if (String.Compare(tag.Name, "/table", true) == 0)
{
break;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
}
/// <summary>
/// Called to parse a table. The table number at the specified URL
/// will be parsed.
/// </summary>
/// <param name="url">The URL of the HTML page that contains the table.</param>
/// <param name="tableNum">The table number to parse, zero for the first.</param>
public void Process(Uri url, int tableNum)
{
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
StringBuilder buffer = new StringBuilder();
List <String> list = new List <String>();
bool capture = false;
Advance(parse, "table", tableNum);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "tr", true) == 0)
{
list.Clear();
capture = false;
buffer.Length = 0;
}
else if (String.Compare(tag.Name, "/tr", true) == 0)
{
if (list.Count > 0)
{
ProcessTableRow(list);
list.Clear();
}
}
else if (String.Compare(tag.Name, "td", true) == 0)
{
if (buffer.Length > 0)
{
list.Add(buffer.ToString());
}
buffer.Length = 0;
capture = true;
}
else if (String.Compare(tag.Name, "/td", true) == 0)
{
list.Add(buffer.ToString());
buffer.Length = 0;
capture = false;
}
else if (String.Compare(tag.Name, "/table", true) == 0)
{
break;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
}
/// <summary>
/// Access the website and perform a search for either states or capitals.
/// </summary>
/// <param name="search">A search string.</param>
/// <param name="type">What to search for(s=state, c=capital)</param>
public void Process(String search, String type)
{
String listType = "ul";
String listTypeEnd = "/ul";
StringBuilder buffer = new StringBuilder();
bool capture = false;
// Build the URL.
MemoryStream mstream = new MemoryStream();
FormUtility form = new FormUtility(mstream, null);
form.Add("search", search);
form.Add("type", type);
form.Add("action", "Search");
form.Complete();
System.Text.ASCIIEncoding enc = new System.Text.ASCIIEncoding();
String str = enc.GetString(mstream.GetBuffer());
String surl = "http://www.httprecipes.com/1/7/get.php?" + str;
Uri url = new Uri(surl);
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
// Parse from the URL.
Advance(parse, listType, 0);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "li", true) == 0)
{
if (buffer.Length > 0)
{
ProcessItem(buffer.ToString());
}
buffer.Length = 0;
capture = true;
}
else if (String.Compare(tag.Name, "/li", true) == 0)
{
ProcessItem(buffer.ToString());
buffer.Length = 0;
capture = false;
}
else if (String.Compare(tag.Name, listTypeEnd, true) == 0)
{
ProcessItem(buffer.ToString());
break;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
}
/// <summary>
/// Called to process each partial page.
/// </summary>
/// <param name="url">The URL of the partial page.</param>
/// <returns>Returns the next partial page, or null if no more.</returns>
public Uri Process(Uri url)
{
Uri result = null;
StringBuilder buffer = new StringBuilder();
String value = "";
String src = "";
WebRequest http = HttpWebRequest.Create(url);
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
bool first = true;
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "a", true) == 0)
{
buffer.Length = 0;
value = tag["href"];
Uri u = new Uri(url, value.ToString());
value = u.ToString();
src = null;
}
else if (String.Compare(tag.Name, "img", true) == 0)
{
src = tag["src"];
}
else if (String.Compare(tag.Name, "/a", true) == 0)
{
if (String.Compare(buffer.ToString(), "[Next 5]", true) == 0)
{
result = new Uri(url, value);
}
else if (src != null)
{
if (!first)
{
Uri urlOfficial = new Uri(url, value);
Uri urlFlag = new Uri(url, src);
ProcessItem(urlOfficial, urlFlag);
}
else
{
first = false;
}
}
}
}
else
{
buffer.Append((char)ch);
}
}
return(result);
}
/// <summary>
/// Use the session to search for the specified state or capital. The search
/// method can be called multiple times per login.
/// </summary>
/// <param name="session">The session to use.</param>
/// <param name="search">The search string to use.</param>
/// <param name="type">What to search for(s=state,c=capital).</param>
/// <returns>A list of states or capitals.</returns>
public List <String> Search(String session, String search, String type)
{
String listType = "ul";
String listTypeEnd = "/ul";
StringBuilder buffer = new StringBuilder();
bool capture = false;
List <String> result = new List <String>();
// Build the URL.
MemoryStream mstream = new MemoryStream();
FormUtility form = new FormUtility(mstream, null);
form.Add("search", search);
form.Add("type", type);
form.Add("action", "Search");
form.Complete();
Uri url = new Uri("http://www.httprecipes.com/1/8/menunc.php?session="
+ session);
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 30000;
http.ContentType = "application/x-www-form-urlencoded";
http.Method = "POST";
Stream ostream = http.GetRequestStream();
// Perform the post.
byte[] b = mstream.GetBuffer();
ostream.Write(b, 0, b.Length);
ostream.Close();
// Read the results.
WebResponse response = http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
// Parse from the URL.
Advance(parse, listType, 0);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "li", true) == 0)
{
if (buffer.Length > 0)
{
result.Add(buffer.ToString());
}
buffer.Length = 0;
capture = true;
}
else if (String.Compare(tag.Name, "/li", true) == 0)
{
result.Add(buffer.ToString());
buffer.Length = 0;
capture = false;
}
else if (String.Compare(tag.Name, listTypeEnd, true) == 0)
{
result.Add(buffer.ToString());
break;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
return(result);
}
/// <summary>
/// Check the specified URL for a birth year. This will occur if one sentence
/// is found that has the word born, and a numeric value less than 3000.
/// </summary>
/// <param name="report">Object to report to.</param>
/// <param name="url">The url.</param>
/// <param name="desiredYear">The desired year.</param>
public static void CheckURL(ScanReportable report, Uri url,
int desiredYear)
{
int ch;
StringBuilder sentence = new StringBuilder();
String ignoreUntil = null;
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 10000;
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML html = new ParseHTML(istream);
do
{
ch = html.Read();
if ((ch != -1) && (ch != 0) && (ignoreUntil == null))
{
if (".?!".IndexOf((char)ch) != -1)
{
String str = sentence.ToString();
int year = Text.ExtractYear(str);
if (desiredYear == -1)
{
// looking for any year
if (year != -1)
{
report.ReceiveGoodSentence(str);
}
}
else
{
// looking for a specific year
if (year == desiredYear)
{
report.ReceiveGoodSentence(str);
}
else if (year != -1)
{
report.ReceiveBadSentence(str);
}
}
sentence.Length = 0;
}
else if (ch == ' ')
{
string str = sentence.ToString();
if ((sentence.Length > 0) &&
(str[str.Length - 1] != ' '))
{
sentence.Append(' ');
}
}
else if ((ch != '\n') && (ch != '\t') && (ch != '\r'))
{
if ((ch) < 128)
{
sentence.Append((char)ch);
}
}
}
else if (ch == 0)
{
// clear anything before a body tag
if (html.Tag.Name.Equals("body", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("br", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("li", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("p", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("h1", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("h2", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("h3", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("td", StringComparison.CurrentCultureIgnoreCase) ||
html.Tag.Name.Equals("th", StringComparison.CurrentCultureIgnoreCase))
{
sentence.Length = 0;
}
// ignore everything between script and style tags
if (ignoreUntil == null)
{
if (html.Tag.Name.Equals("script", StringComparison.CurrentCultureIgnoreCase))
{
ignoreUntil = "/script";
}
else if (html.Tag.Name
.Equals("style", StringComparison.CurrentCultureIgnoreCase))
{
ignoreUntil = "/style";
}
}
else
{
if (html.Tag.Name.Equals(ignoreUntil, StringComparison.CurrentCultureIgnoreCase))
{
ignoreUntil = null;
}
}
// add a space after the tag
if (sentence.Length > 0)
{
string str = sentence.ToString();
if (str[str.Length - 1] != ' ')
{
sentence.Append(' ');
}
}
}
} while (ch != -1);
}
/**
* Access the website and perform a search for either states or capitals.
* @param search A search string.
* @param type What to search for(s=state, c=capital)
* @throws IOException Thrown if an IO exception occurs.
*/
public void Process(String search, String type)
{
String listType = "ul";
String listTypeEnd = "/ul";
StringBuilder buffer = new StringBuilder();
bool capture = false;
// Build the URL and POST.
Uri url = new Uri("http://www.httprecipes.com/1/7/post.php");
WebRequest http = HttpWebRequest.Create(url);
http.Timeout = 30000;
http.ContentType = "application/x-www-form-urlencoded";
http.Method = "POST";
Stream ostream = http.GetRequestStream();
FormUtility form = new FormUtility(ostream, null);
form.Add("search", search);
form.Add("type", type);
form.Add("action", "Search");
form.Complete();
ostream.Close();
// read the results
HttpWebResponse response = (HttpWebResponse)http.GetResponse();
Stream istream = response.GetResponseStream();
ParseHTML parse = new ParseHTML(istream);
// parse from the URL
Advance(parse, listType, 0);
int ch;
while ((ch = parse.Read()) != -1)
{
if (ch == 0)
{
HTMLTag tag = parse.Tag;
if (String.Compare(tag.Name, "li", true) == 0)
{
if (buffer.Length > 0)
{
ProcessItem(buffer.ToString());
}
buffer.Length = 0;
capture = true;
}
else if (String.Compare(tag.Name, "/li", true) == 0)
{
ProcessItem(buffer.ToString());
buffer.Length = 0;
capture = false;
}
else if (String.Compare(tag.Name, listTypeEnd, true) == 0)
{
ProcessItem(buffer.ToString());
break;
}
}
else
{
if (capture)
{
buffer.Append((char)ch);
}
}
}
}
