258 lines
8.7 KiB
Plaintext
258 lines
8.7 KiB
Plaintext
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package com.novelbook.android.netutils;
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import android.text.TextUtils;
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import android.util.Log;
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import com.novelbook.android.netapi.RandomHost;
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import com.novelbook.android.utils.Constants;
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import com.novelbook.android.utils.REUtil;
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import org.json.JSONException;
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import java.io.IOException;
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import okhttp3.Interceptor;
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import okhttp3.Request;
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import okhttp3.Response;
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public class RetryInterceptor implements Interceptor {
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private static final String TAG=RetryInterceptor.class.getSimpleName();
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int RetryCount = 10;
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public RetryInterceptor(){
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}
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/* public RetryInterceptor(RandomHost rh) {
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this.rh=rh;
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}*/
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@Override
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public Response intercept(Chain chain) throws IOException {
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Request request = chain.request();
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String oldUrl = request.url().toString();
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Log.d(TAG, "HttpMethods intercept: request url:"+oldUrl);
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String prefix = REUtil.match("(?i)http[s]?://[^/]+", oldUrl);
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Log.d(TAG, "HttpMethods intercept: prefix:"+prefix);
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if (prefix == null){
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Response response = doRequest(chain, request);
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if(response!=null)
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{
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return response;
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}else
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{
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int i=0;
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while(response==null && i<3){
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response = doRequest(chain, request);
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i++;
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Log.d(TAG, String.format("HttpMethods intercept:a retried %s, response is null? %s",i, response == null));
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}
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if(response==null) {
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throw new IOException();
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}else {
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return response;
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}
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}
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}
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String path = oldUrl.substring(prefix.length());
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Log.d(TAG, "HttpMethods intercept: path:"+path);
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RandomHost rh = null;
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boolean isMainApi =path.equals("/api/g/");
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if(oldUrl.indexOf("xiaoshuofenxiang.com") == -1 || !path.startsWith("/api/") || NetUtil.getHost(isMainApi)==null){
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// rh = null;
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if(oldUrl.indexOf("xiaoshuofenxiang.com")!=-1) {
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Request.Builder requestBuilder = request.newBuilder();
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requestBuilder.removeHeader("User-Agent").addHeader("User-Agent", HttpMethods.LOCALUSERAGENT);
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request =requestBuilder.build();
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}
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Response response = doRequest(chain, request);
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if(response!=null)
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{
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return response;
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}else
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{
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int i=0;
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while(response==null && i<3){
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try {
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Thread.sleep(10);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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response = doRequest(chain, request);
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i++;
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Log.d(TAG, String.format("HttpMethods intercept:b retried %s,%s,response is null? %s",i,request.url(), response == null));
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}
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if(response==null) {
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throw new IOException();
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}else {
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return response;
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}
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}
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}
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try {
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rh = new RandomHost(NetUtil.getHost(isMainApi), path);
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Log.d(TAG, "HttpMethods intercept: create new RandomHost--------------------------");
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} catch (JSONException e) {
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Log.e(TAG, "intercept: ", e);
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}
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Response response = null;
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while (true) {
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String newPrefix = rh.next();
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if ("".equals(newPrefix)) break;
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String newUrl = newPrefix + path;
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Log.d(TAG, "HttpMethods intercept: trying url is " + newUrl);
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Request newRequest = null;
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try {
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Request.Builder requestBuilder = request.newBuilder();
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requestBuilder.removeHeader("User-Agent").addHeader("User-Agent", HttpMethods.LOCALUSERAGENT)
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.url(newUrl);
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if (path.equals("/api/g/")) {
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// if(new Date().getTime() - Constants.LAST_G > Constants.MAXAGE_G){ //
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if (Constants.LAST_G == 0) {
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requestBuilder.header("Cache-Control", "public, max-age=0");
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Log.d(TAG, "prepare book access main api with force maxage=0");
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}
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}
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newRequest = requestBuilder.build();
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} catch (Exception e) {
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Log.e(TAG, "HttpMethods intercept: " + newUrl);
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Log.e(TAG, "HttpMethods intercept: ", e);
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continue;
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}
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if (response != null) { try {response.close();} catch (IllegalStateException e) {} }
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response = doRequest(chain, newRequest);
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Log.d(TAG, String.format("HttpMethods intercept: %s, response is null? %s, ua %s",newRequest.url(), response == null,newRequest.header("User-Agent")));
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/* int i=0;
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while((response==null || !response.isSuccessful() )&& i<5){
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try {
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Thread.sleep(10);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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response = doRequest(chain, newRequest);
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i++;
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Log.d(TAG, String.format("HttpMethods intercept:C retried %s,%s, response is null? %s",i,newRequest.url(), response == null));
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}*/
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if (response != null) {
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Log.d(TAG, String.format("HttpMethods intercept: response .code? %s", response.code()));
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}
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if (response != null && response.isSuccessful()) {
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// rh = null;
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Log.d(TAG, String.format("HttpMethods intercept isHostExpires get path %s" ,path));
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if (path.equals("/api/g/") || path.equals("/api/g")) {
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Log.d(TAG, String.format("HttpMethods intercept isHostExpires get main api %s" ,path));
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String cacheControl = response.header("Cache-Control");
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Log.d(TAG, String.format("HttpMethods intercept isHostExpires, cacheControl %s" ,cacheControl));
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if(!TextUtils.isEmpty(cacheControl)) {
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try {
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Constants.MAXAGE_G = Integer.parseInt(cacheControl.substring("max-age=".length()));
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Log.d(TAG, String.format("HttpMethods intercept isHostExpires Constants.MAXAGE_G: %s" ,Constants.MAXAGE_G));
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}catch (Exception e)
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{
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Log.e(TAG, "intercept: parse max age error", e);
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}
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}
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}
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return response;
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}
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}
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/* int tryCount=0;
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String url =oldUrl;
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while ( (response==null ||!response.isSuccessful()) && tryCount <= RetryCount) {
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// if(tryCount>3)
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{ //三次不成功后换其他url
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url = switchServer(path);
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if (url.equals(oldUrl)) {
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url = switchServer(path);
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}
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if(TextUtils.isEmpty(url)){
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return null;
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}
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}
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Request newRequest = null;
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try {
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newRequest = request.newBuilder().url(url).build();
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} catch (Exception e) {
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Log.e(TAG, "HttpMethods intercept: "+url);
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Log.e(TAG, "HttpMethods intercept: ", e);
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return null;
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}
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Log.d("HttpMethods intercept", "Request is not successful - " + tryCount);
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Log.d(TAG, "HttpMethods intercept: trying url is "+url);
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tryCount++;
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// retry the request
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response = doRequest(chain, newRequest);
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}*/
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Log.d(TAG, String.format("HttpMethods intercept: set rh null,return response"));
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rh = null;
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if (response == null) {
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throw new IOException();
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}
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return response;
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}
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private Response doRequest(Chain chain, Request request) throws IOException {
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Response response = null;
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Log.d(TAG, String.format("HttpMethods ua: %s, ua %s",request.url(), request.header("User-Agent")));
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try {
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response = chain.proceed(request);
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} catch (Exception e) {
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Log.e(TAG, "doRequest: error, " + request.url(),e );
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}
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return response;
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}
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/*private String switchServer(String key) {
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String newUrl = rh.next();
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if(TextUtils.isEmpty(newUrl)){
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return newUrl;
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}
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*//* if(!newUrl.endsWith("/")){
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newUrl+="/";
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}*//*
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return newUrl +key;
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}*/
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}
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