Java tutorial
/* * Copyright 2010, 2011 Ali Piccioni * * This program is distributed under the terms of the GNU General Public License * * This file is part of Team Liquid Android App. * * Team Liquid Android App is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Team Liquid Android App is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Team Liquid Android App. If not, see <http://www.gnu.org/licenses/>. * */ package com.thoughtmetric.tl; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.OutputStream; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import java.net.URL; import java.net.URLConnection; import java.util.ArrayList; import java.util.List; import org.apache.http.Header; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.CookieStore; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; import org.apache.http.cookie.Cookie; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.htmlcleaner.CleanerProperties; import org.htmlcleaner.HtmlCleaner; import org.htmlcleaner.SimpleXmlSerializer; import org.htmlcleaner.TagNode; import org.htmlcleaner.XPatherException; import org.htmlcleaner.XmlSerializer; import android.content.Context; import android.content.SharedPreferences; import android.os.Handler; import android.os.Message; import android.text.Html; import android.util.Log; public class TLLib { public static final int PROGRESS_CONNECTING = 100; public static final int PROGRESS_DOWNLOADING = 101; public static final int PROGRESS_PARSING = 102; private static final String TAG = "TLLib"; private static final String TEMP_FILE_NAME = "TLLIBTEMP"; private static final String LOGIN_URL = "http://www.teamliquid.net/mytlnet/login.php"; private static final String CREATE_NEW_THREAD_URL = "http://www.teamliquid.net/forum/addtopic.php"; private static final String CREATE_NEW_BLOG_POST_URL = "http://www.teamliquid.net/blogs/addblogentry.php"; private static final String POST_URL = "http://www.teamliquid.net/forum/postmessage.php"; private static final String PM_URL = "http://www.teamliquid.net/mytlnet/index.php"; private static final String EDIT_URL = "http://www.teamliquid.net/forum/edit.php"; private static final String USER_FIELD = "loginname"; private static final String PASS_FIELD = "loginpasswd"; private static final String REMEMBERME = "makeAcookie"; private static CookieStore cookieStore; public static boolean loginStatus = false; public static String loginName; private static HtmlCleaner cleaner = null; private static XmlSerializer serializer; public static HtmlCleaner buildDefaultHtmlCleaner() { if (cleaner == null) { cleaner = new HtmlCleaner(); CleanerProperties props = cleaner.getProperties(); props.setAllowHtmlInsideAttributes(true); props.setAllowMultiWordAttributes(true); props.setRecognizeUnicodeChars(true); props.setOmitComments(true); } //props.setPruneTags("script"); return cleaner; } public static XmlSerializer getXmlSerializer() { if (serializer == null) { buildDefaultHtmlCleaner(); serializer = new SimpleXmlSerializer(cleaner.getProperties()); } return serializer; } public static String getAbsoluteURL(String relativeURL) { if (relativeURL.charAt(0) == '/') { return Config.DOMAIN_NAME + relativeURL; } else { return Config.DOMAIN_NAME + "/" + relativeURL; } } public static boolean login(String login, String pw, Handler handler, Context context) throws IOException { handler.sendEmptyMessage(TLHandler.PROGRESS_LOGIN); // Fetch the token HtmlCleaner cleaner = TLLib.buildDefaultHtmlCleaner(); URL url = new URL(LOGIN_URL); TagNode node = TLLib.TagNodeFromURLLoginToken(cleaner, url, handler, context); String token = null; try { TagNode result = (TagNode) node.evaluateXPath("//input")[0]; token = result.getAttributeByName("value"); } catch (XPatherException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } if (token == null) { return false; } // DefaultHttpClient httpclient = new DefaultHttpClient(); HttpPost httpost = new HttpPost(LOGIN_URL); List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair(USER_FIELD, login)); nvps.add(new BasicNameValuePair(PASS_FIELD, pw)); nvps.add(new BasicNameValuePair(REMEMBERME, "1")); nvps.add(new BasicNameValuePair("stage", "1")); nvps.add(new BasicNameValuePair("back_url", "")); nvps.add(new BasicNameValuePair("token", token)); Log.d("token:", token); try { httpost.setEntity(new UrlEncodedFormEntity(nvps)); HttpResponse response = httpclient.execute(httpost); HttpEntity entity = response.getEntity(); Header[] headers = response.getHeaders("Set-Cookie"); if (headers.length > 0) { loginName = null; loginStatus = false; } else { loginName = login; loginStatus = true; cookieStore = httpclient.getCookieStore(); } if (entity != null) { entity.consumeContent(); } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return loginStatus; } public static void logout() { loginStatus = false; cookieStore = null; } public static void sendPM(String to, String subject, String message) throws IOException { DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.setCookieStore(cookieStore); HttpPost httpost = new HttpPost(PM_URL); List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("to", to)); nvps.add(new BasicNameValuePair("subject", subject)); nvps.add(new BasicNameValuePair("body", message)); nvps.add(new BasicNameValuePair("view", "Send")); Log.d(TAG, "Sending message"); Log.d(TAG, to); Log.d(TAG, subject); Log.d(TAG, message); try { httpost.setEntity(new UrlEncodedFormEntity(nvps)); HttpResponse response = httpclient.execute(httpost); HttpEntity entity = response.getEntity(); if (entity != null) { entity.consumeContent(); } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } } public static void postMessage(String message, String backurl, String topicId, Context context) throws IOException { DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.setCookieStore(cookieStore); HttpPost httpost = new HttpPost(POST_URL); List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("bericht", message)); nvps.add(new BasicNameValuePair("stage", "1")); nvps.add(new BasicNameValuePair("backurl", backurl)); nvps.add(new BasicNameValuePair("topic_id", topicId)); nvps.add(new BasicNameValuePair("submit_button", "Post")); try { httpost.setEntity(new UrlEncodedFormEntity(nvps)); HttpResponse response = httpclient.execute(httpost); HttpEntity entity = response.getEntity(); if (entity != null) { entity.consumeContent(); } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } } public static void editMessage(String message, int topicId, int postId, int currentPage, String token, Context context) throws IOException { DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.setCookieStore(cookieStore); HttpPost httpost = new HttpPost(EDIT_URL); List<NameValuePair> nvps = new ArrayList<NameValuePair>(); nvps.add(new BasicNameValuePair("action", "edit")); nvps.add(new BasicNameValuePair("token", token)); nvps.add(new BasicNameValuePair("stage", "1")); nvps.add(new BasicNameValuePair("topic_id", Integer.toString(topicId))); nvps.add(new BasicNameValuePair("post_id", Integer.toString(postId))); nvps.add(new BasicNameValuePair("currentPage", Integer.toString(currentPage))); nvps.add(new BasicNameValuePair("content", message)); nvps.add(new BasicNameValuePair("submit_button", "Update")); try { httpost.setEntity(new UrlEncodedFormEntity(nvps)); HttpResponse response = httpclient.execute(httpost); HttpEntity entity = response.getEntity(); if (entity != null) { entity.consumeContent(); } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } } private static void writeEntitytoFile(HttpEntity entity, Context context) throws IllegalStateException, IOException { InputStream is = entity.getContent(); BufferedReader br = new BufferedReader(new InputStreamReader(is)); BufferedWriter bw = new BufferedWriter( new OutputStreamWriter(context.openFileOutput("TEMP.html", Context.MODE_PRIVATE))); String line; while ((line = br.readLine()) != null) { bw.write(line); } } private static TagNode TagNodeFromURLHelper(InputStream is, String fullTag, Handler handler, Context context, HtmlCleaner cleaner) throws IOException { SharedPreferences settings = context.getSharedPreferences(Settings.SETTINGS_FILE_NAME, 0); boolean disableSmartParsing = settings.getBoolean(Settings.DISABLE_SMART_PARSING, false); if (fullTag != null && !disableSmartParsing) { FileOutputStream fos = context.openFileOutput(TEMP_FILE_NAME, Context.MODE_WORLD_WRITEABLE); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(fos)); TagParser.extractTagToFile(fullTag, is, bw); bw.flush(); bw.close(); if (handler != null) handler.sendEmptyMessage(PROGRESS_PARSING); return cleaner.clean(context.openFileInput(TEMP_FILE_NAME)); } else { if (handler != null) handler.sendEmptyMessage(PROGRESS_PARSING); return cleaner.clean(is); } } public static TagNode TagNodeFromURLEx2(HtmlCleaner cleaner, URL url, Handler handler, Context context, String fullTag, boolean login) throws IOException { handler.sendEmptyMessage(PROGRESS_CONNECTING); DefaultHttpClient httpclient = new DefaultHttpClient(); if (login) { httpclient.setCookieStore(cookieStore); } HttpGet httpGet = new HttpGet(url.toExternalForm()); HttpResponse response = httpclient.execute(httpGet); handler.sendEmptyMessage(PROGRESS_DOWNLOADING); HttpEntity httpEntity = response.getEntity(); InputStream is = httpEntity.getContent(); return TagNodeFromURLHelper(is, fullTag, handler, context, cleaner); } // TODO: Get rid of all these TagNode functions. Their respective Activity classes should call TagNodeFromURLEx2 directly public static TagNode TagNodeFromURLShowForumList(HtmlCleaner cleaner, URL url, Handler handler, Context context) throws IOException { return TagNodeFromURLEx2(cleaner, url, handler, context, "<TABLE cellpadding=0 cellspacing=0 width=\"622\" >", true); } public static TagNode TagNodeFromURLLoginToken(HtmlCleaner cleaner, URL url, Handler handler, Context context) throws IOException { return TagNodeFromURLEx2(cleaner, url, handler, context, "<table cellpadding=\"0\" cellspacing=\"0\" style=\"width: 100%; position: relative; margin-bottom: 4px\">", false); } public static TagNode TagNodeFromURLShowForum(HtmlCleaner cleaner, URL url, Handler handler, Context context) throws IOException { return TagNodeFromURLEx2(cleaner, url, handler, context, "<table width=\"605\" class=\"solid\" cellspacing=0>", true); } public static TagNode TagNodeFromURLMyPosts(HtmlCleaner cleaner, URL url, Handler handler, Context context) throws IOException { return TagNodeFromURLEx2(cleaner, url, handler, context, "<table width='606' cellpadding='3' cellspacing='0' border='0' style='border:1px solid #00005D;'>", true); } private static final String APPLICATION_TITLE = "Team Liquid"; public static String makeActivityTitle(String subtitle) { if (subtitle == null || subtitle.length() == 0) { return APPLICATION_TITLE; } else { return String.format("%s - %s", APPLICATION_TITLE, subtitle); } } public static Object[] parseEditText(HtmlCleaner cleaner, URL url, TLHandler handler, Context context) throws IOException { // Although probably not THE worst hack I've written, this function ranks near the top. // TODO: rework this routine get rid of code duplication. DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.setCookieStore(cookieStore); HttpGet httpGet = new HttpGet(url.toExternalForm()); HttpResponse response = httpclient.execute(httpGet); handler.sendEmptyMessage(PROGRESS_DOWNLOADING); InputStream is = response.getEntity().getContent(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); FileOutputStream fos = context.openFileOutput(TEMP_FILE_NAME, Context.MODE_PRIVATE); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(fos)); String line; String formStart = "<form action=\"/forum/edit.php"; while ((line = br.readLine()) != null) { if (line.startsWith(formStart)) { Log.d(TAG, line); bw.write(line); break; } } String start = "\t\t<textarea"; String end = "\t\t<p>"; StringBuffer sb = new StringBuffer(); while ((line = br.readLine()) != null) { if (line.startsWith(start)) { bw.write("</form>"); int i = line.lastIndexOf('>'); sb.append(Html.fromHtml(line.substring(i + 1)).toString()); sb.append("\n"); break; } else { bw.write(line); } } while ((line = br.readLine()) != null) { if (line.startsWith(end)) { break; } sb.append(Html.fromHtml(line).toString()); sb.append("\n"); } bw.flush(); bw.close(); if (handler != null) handler.sendEmptyMessage(PROGRESS_PARSING); Object[] ret = new Object[2]; ret[0] = sb.toString(); ret[1] = cleaner.clean(context.openFileInput(TEMP_FILE_NAME)); return ret; } public static String parseQuoteText(HtmlCleaner cleaner, URL url, TLHandler handler, Context context) throws IOException { DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.setCookieStore(cookieStore); HttpGet httpGet = new HttpGet(url.toExternalForm()); HttpResponse response = httpclient.execute(httpGet); handler.sendEmptyMessage(PROGRESS_DOWNLOADING); InputStream is = response.getEntity().getContent(); InputStreamReader isr = new InputStreamReader(is); BufferedReader br = new BufferedReader(isr); return parseTextArea(br); } public static Object[] tagNodeWithEditText(HtmlCleaner cleaner, URL url, Handler handler, Context context, String fullTag, boolean login) throws IOException { Object[] ret = new Object[2]; handler.sendEmptyMessage(PROGRESS_CONNECTING); DefaultHttpClient httpclient = new DefaultHttpClient(); if (login) { httpclient.setCookieStore(cookieStore); } HttpGet httpGet = new HttpGet(url.toExternalForm()); HttpResponse response = httpclient.execute(httpGet); handler.sendEmptyMessage(PROGRESS_DOWNLOADING); InputStream is = response.getEntity().getContent(); BufferedReader br = new BufferedReader(new InputStreamReader(context.openFileInput(TEMP_FILE_NAME))); ret[0] = TagNodeFromURLHelper(is, fullTag, handler, context, cleaner); ret[1] = parseTextArea(br); return ret; } public static String parseTextArea(BufferedReader br) throws IOException { String start = "<textarea"; String end = "</textarea>"; String line; StringBuffer sb = new StringBuffer(); while ((line = br.readLine()) != null) { if (line.contains(start)) { int i = line.indexOf(start); int j = line.indexOf('>', i); int k = line.length(); try { if (line.contains(end)) { k = line.indexOf(end); // The case where the tag is closed on the same line Log.d(TAG, String.format("%d, %d", j + 1, k)); sb.append(Html.fromHtml(line.substring(j + 1, k)).toString()); return sb.toString(); } else { sb.append(Html.fromHtml(line.substring(j + 1, k)).toString()); sb.append("\n"); } } catch (StringIndexOutOfBoundsException e) { // Do nothing } break; } } while ((line = br.readLine()) != null) { if (line.contains(end)) { int i = line.indexOf(end); sb.append(Html.fromHtml(line.substring(0, i)).toString()); break; } sb.append(Html.fromHtml(line).toString()); sb.append("\n"); } return sb.toString(); } public static void postNewThread(int forumCode, String subject, String message) throws IOException { DefaultHttpClient httpclient = new DefaultHttpClient(); httpclient.setCookieStore(cookieStore); HttpPost httpost; List<NameValuePair> nvps = new ArrayList<NameValuePair>(); if (forumCode == 18) { httpost = new HttpPost(CREATE_NEW_BLOG_POST_URL); nvps.add(new BasicNameValuePair("topic_name", subject)); nvps.add(new BasicNameValuePair("bericht", message)); nvps.add(new BasicNameValuePair("stage", "1")); nvps.add(new BasicNameValuePair("submit", "Post Message")); nvps.add(new BasicNameValuePair("type", "")); } else { httpost = new HttpPost(CREATE_NEW_THREAD_URL); nvps.add(new BasicNameValuePair("topic_name", subject)); nvps.add(new BasicNameValuePair("content", message)); nvps.add(new BasicNameValuePair("submit", "Post Message")); nvps.add(new BasicNameValuePair("type", String.format("%d", forumCode))); } try { httpost.setEntity(new UrlEncodedFormEntity(nvps)); HttpResponse response = httpclient.execute(httpost); HttpEntity entity = response.getEntity(); if (entity != null) { entity.consumeContent(); } } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } } }