package com.halzhang.android.startupnews.data.net;
import android.content.Context;
import android.content.Intent;
import android.text.TextUtils;
import android.util.Log;
import com.halzhang.android.startupnews.data.Constant;
import com.halzhang.android.startupnews.data.entity.SNComments;
import com.halzhang.android.startupnews.data.entity.SNDiscuss;
import com.halzhang.android.startupnews.data.entity.SNFeed;
import com.halzhang.android.startupnews.data.entity.Status;
import com.halzhang.android.startupnews.data.exception.NetworkException;
import com.halzhang.android.startupnews.data.parser.BaseHTMLParser;
import com.halzhang.android.startupnews.data.parser.SNCommentsParser;
import com.halzhang.android.startupnews.data.parser.SNDiscussParser;
import com.halzhang.android.startupnews.data.parser.SNFeedParser;
import com.halzhang.android.startupnews.data.utils.SessionManager;
import com.squareup.okhttp.FormEncodingBuilder;
import com.squareup.okhttp.Headers;
import com.squareup.okhttp.HttpUrl;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;
import com.squareup.okhttp.internal.http.OkHeaders;
import org.jsoup.Connection;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import javax.inject.Singleton;
import rx.Observable;
import rx.Subscriber;
import rx.functions.Action0;
/**
* api impl
* Created by Hal on 2016/5/30.
*/
@Singleton
public class SnApiImpl implements ISnApi {
private OkHttpClient mOkHttpClient;
private Context mContext;
private SessionManager mSessionManager;
private JsoupConnector mJsoupConnector;
public SnApiImpl(OkHttpClient okHttpClient, Context context, SessionManager sessionManager, JsoupConnector jsoupConnector) {
mOkHttpClient = okHttpClient;
mContext = context;
mSessionManager = sessionManager;
mJsoupConnector = jsoupConnector;
}
@Override
public Observable<SNFeed> getSNFeed(final String url) {
return Observable.create(new Observable.OnSubscribe<SNFeed>() {
@Override
public void call(Subscriber<? super SNFeed> subscriber) {
try {
Connection conn = mJsoupConnector.newJsoupConnection(url);
Document doc = conn.get();
SNFeedParser parser = new SNFeedParser();
SNFeed feed = parser.parseDocument(doc);
subscriber.onNext(feed);
subscriber.onCompleted();
} catch (Exception e) {
subscriber.onError(e);
}
}
});
}
@Override
public Observable<String> getFnid() {
return Observable.create(new Observable.OnSubscribe<String>() {
@Override
public void call(Subscriber<? super String> subscriber) {
String loginUrl = null;
try {
Document doc = Jsoup.connect(Constant.NEWS_URL).get();
if (doc != null) {
Elements loginElements = doc.select("a:matches(Login/Register)");
if (loginElements.size() == 1) {
loginUrl = BaseHTMLParser.resolveRelativeSNURL(loginElements.first().attr(
"href"));
}
}
String fnid = null;
if (!TextUtils.isEmpty(loginUrl)) {
doc = Jsoup.connect(loginUrl).get();
if (doc != null) {
Elements inputElements = doc.select("input[name=fnid]");
if (inputElements != null && inputElements.size() > 0) {
fnid = inputElements.first().attr("value");
}
}
}
subscriber.onNext(fnid);
subscriber.onCompleted();
} catch (IOException e) {
subscriber.onError(e);
}
}
});
}
@Override
public Observable<String> login(final String fnid, final String username, final String password) {
return Observable.create(new Observable.OnSubscribe<String>() {
@Override
public void call(Subscriber<? super String> subscriber) {
FormEncodingBuilder builder = new FormEncodingBuilder();
builder.addEncoded("fnid", fnid).addEncoded("u", username).addEncoded("p", password);
Request request = new Request.Builder().url(Constant.LOGIN_URL).post(builder.build())
.addHeader("Accept-Language", "zh-cn")
.addHeader("Accept", "*/*")
.addHeader("Accept-Encoding", "gzip,deflate")
.addHeader("Connection", "keep-alive")
.build();
try {
String user = null;
Response response = mOkHttpClient.newCall(request).execute();
if (response.isSuccessful()) {
Map<String, List<String>> cookiesMap = mOkHttpClient.getCookieHandler().get(request.uri(), OkHeaders.toMultimap(request.headers(), null));
if (cookiesMap.size() > 0) {
List<String> cookies = cookiesMap.get("Cookie");
for (String s : cookies) {
String[] cookie = TextUtils.split(s, "=");
if (cookie.length == 2 && "user".equals(cookie[0])) {
user = cookie[1];
break;
}
}
}
}
response.body().close();
mSessionManager.storeSession(user, username);
subscriber.onNext(user);
subscriber.onCompleted();
} catch (IOException e) {
subscriber.onError(e);
}
}
}).doOnSubscribe(new Action0() {
@Override
public void call() {
mSessionManager.clear();
}
});
}
@Override
public Observable<SNComments> getSNComments(final String url) {
return Observable.create(new Observable.OnSubscribe<SNComments>() {
@Override
public void call(Subscriber<? super SNComments> subscriber) {
try {
Connection conn = mJsoupConnector.newJsoupConnection(url);
Document doc = conn.get();
SNCommentsParser parser = new SNCommentsParser();
SNComments comments = parser.parseDocument(doc);
subscriber.onNext(comments);
subscriber.onCompleted();
} catch (Exception e) {
subscriber.onError(e);
}
}
});
}
@Override
public Observable<Status> upVote(final String postId) {
return Observable.create(new Observable.OnSubscribe<Status>() {
@Override
public void call(Subscriber<? super Status> subscriber) {
try {
HttpUrl httpUrl = new HttpUrl.Builder()
.scheme(Constant.SCHEME)
.host(Constant.HOST)
.addPathSegment("vote")
.addQueryParameter("for", postId)
.addQueryParameter("dir", "up")
.addQueryParameter("by", mSessionManager.getSessionId())
.addQueryParameter("auth", mSessionManager.getSessionUser())
.addQueryParameter("whence", "news")
.build();
Request request = new Request.Builder().url(httpUrl).build();
Response response = mOkHttpClient.newCall(request).execute();
Status status = new Status();
if (response.isSuccessful()) {
status.code = Status.CODE_SUCCESS;
} else {
String content = response.body().string();
if (content.contains("mismatch")) {
// 用户cookie无效
status.code = Status.CODE_COOKIE_VALID;
} else {
status.code = Status.CODE_REPEAT;
}
}
subscriber.onNext(status);
subscriber.onCompleted();
} catch (Exception e) {
subscriber.onError(e);
}
}
});
}
@Override
public Observable<Status> comment(final String text, final String fnid) {
return Observable.create(new Observable.OnSubscribe<Status>() {
@Override
public void call(Subscriber<? super Status> subscriber) {
try {
RequestBody body = new FormEncodingBuilder().add("fnid", fnid).add("text", text).build();
Request request = new Request.Builder().url(Constant.COMMENT_URL).post(body).build();
Response response = mOkHttpClient.newCall(request).execute();
if (response.isSuccessful()) {
String refreerLocation = null;
Headers headers = response.headers();
for (int i = 0; i < headers.size(); i++) {
if ("Refreer-Location".equals(headers.name(i))) {
refreerLocation = headers.value(i);
}
}
Status status = new Status();
if (TextUtils.isEmpty(refreerLocation) || refreerLocation.contains("fnid")) {
//Location:fnid=xxxxx Cookie失效，重新登陆
status.code = Status.CODE_COOKIE_VALID;
} else if (refreerLocation.contains("item")) {
status.code = Status.CODE_SUCCESS;
} else {
status.code = Status.CODE_FAILURE;
}
subscriber.onNext(status);
subscriber.onCompleted();
} else {
NetworkException networkException = new NetworkException(response.code(),
response.message());
subscriber.onError(networkException);
}
} catch (Exception e) {
e.printStackTrace();
subscriber.onError(e);
}
}
});
}
@Override
public Observable<Boolean> logout() {
return Observable.create(new Observable.OnSubscribe<Boolean>() {
@Override
public void call(Subscriber<? super Boolean> subscriber) {
try {
String logoutUrl = null;
Boolean result = false;
Connection conn = mJsoupConnector.newJsoupConnection(Constant.HOST + "/news");
Document doc = conn.get();
Elements elements = doc.select("a:matches(logout)");
if (elements.size() > 0) {
logoutUrl = BaseHTMLParser.resolveRelativeSNURL(elements.attr("href"));
} else {
// 用户可能在pc注销了
mSessionManager.clear();
result = true;
}
if (!TextUtils.isEmpty(logoutUrl)) {
Request request = new Request.Builder().url(logoutUrl).build();
Response response = mOkHttpClient.newCall(request).execute();
result = response.isSuccessful();
}
subscriber.onNext(result);
subscriber.onCompleted();
} catch (Exception e) {
subscriber.onError(e);
}
}
});
}
@Override
public Observable<SNDiscuss> getDiscuss(final String url) {
return Observable.create(new Observable.OnSubscribe<SNDiscuss>() {
@Override
public void call(Subscriber<? super SNDiscuss> subscriber) {
try {
Connection conn = mJsoupConnector.newJsoupConnection(url);
Document doc = conn.get();
SNDiscussParser parser = new SNDiscussParser();
SNDiscuss discuss = parser.parseDocument(doc);
subscriber.onNext(discuss);
subscriber.onCompleted();
} catch (Exception e) {
subscriber.onError(e);
}
}
});
}
}