added ripper for rule34.paheal.net

also implemented a file name limit of 128+4 characters since i got errors for too long filenames thanks to extensive tagging

src/main/java/com/rarchives/ripme/ripper/rippers/PahealRipper.java

@@ -0,0 +1,104 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+package com.rarchives.ripme.ripper.rippers;
+
+import com.rarchives.ripme.ripper.AbstractHTMLRipper;
+import com.rarchives.ripme.utils.Http;
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+/**
+ *
+ * @author
+ */
+public class PahealRipper extends AbstractHTMLRipper{
+	private static Map<String,String> cookies=null;
+	private static Pattern gidPattern=null;
+
+	public static Map<String, String> getCookies() {
+		if(cookies==null){
+			cookies=new HashMap<String, String>(1);
+			cookies.put("ui-tnc-agreed","true");
+		}
+		return cookies;
+	}
+
+	public PahealRipper(URL url) throws IOException {
+		super(url);
+	}
+
+	@Override
+	public String getDomain() {
+		return "rule34.paheal.net";
+	}
+
+	@Override
+	public String getHost() {
+		return "paheal";
+	}
+
+	@Override
+	public Document getFirstPage() throws IOException {
+		return Http.url("http://rule34.paheal.net/post/list/"+getGID(url)+"/1").cookies(getCookies()).get();
+	}
+
+	@Override
+	public Document getNextPage(Document page) throws IOException {
+		for(Element e:page.select("#paginator a")){
+			if(e.text().toLowerCase().equals("next"))
+				return Http.url(e.absUrl("href")).cookies(getCookies()).get();
+		}
+		
+		return null;
+	}
+
+	@Override
+	public List<String> getURLsFromPage(Document page) {
+		Elements elements=page.select(".shm-thumb.thumb>a").not(".shm-thumb-link");
+		List<String> res=new ArrayList<String>(elements.size());
+		
+		for(Element e:elements)
+			res.add(e.attr("href"));
+		
+		return res;
+	}
+
+	@Override
+	public void downloadURL(URL url, int index) {
+		String file=url.getFile();
+		try {
+			addURLToDownload(new URL(url.getProtocol(),url.getHost(),url.getPort(),file.substring(0, Math.min(128,file.lastIndexOf('.')))+file.substring(file.lastIndexOf('.'))));
+		} catch (MalformedURLException ex) {
+			Logger.getLogger(PahealRipper.class.getName()).log(Level.SEVERE, null, ex);
+		}
+	}
+
+	@Override
+	public String getGID(URL url) throws MalformedURLException {
+		if(gidPattern==null)
+			gidPattern=Pattern.compile("^https?://(www\\.)?rule34\\.paheal\\.net/post/list/([a-zA-Z0-9$_.+!*'(),-]+)(/.*)?(#.*)?$");
+		
+		Matcher m = gidPattern.matcher(url.toExternalForm());
+		if(m.matches())
+			return m.group(2);
+		
+		throw new MalformedURLException("Expected paheal.net URL format: rule34.paheal.net/post/list/searchterm - got "+url+" instead");
+	}
+	
+}