package com.r0ysue.learnokhttp;
 
 
/*
 * Copyright (C) 2015 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
 
import android.util.Log;
 
 
import java.io.EOFException;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.concurrent.TimeUnit;
 
 
import okhttp3.Connection;
import okhttp3.Headers;
import okhttp3.Interceptor;
import okhttp3.MediaType;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
import okhttp3.ResponseBody;
import okhttp3.internal.http.HttpHeaders;
import okio.Buffer;
import okio.BufferedSource;
import okio.GzipSource;
 
 
 
 
public final class okhttp3Logging implements Interceptor {
    private static final String TAG = "okhttpGET";
 
 
    private static final Charset UTF8 = Charset.forName("UTF-8");
 
 
    @Override public Response intercept(Chain chain) throws IOException {
 
 
        Request request = chain.request();
 
 
        RequestBody requestBody = request.body();
        boolean hasRequestBody = requestBody != null;
 
 
        Connection connection = chain.connection();
        String requestStartMessage = "--> "
                + request.method()
                + ' ' + request.url();
        Log.e(TAG, requestStartMessage);
 
 
        if (hasRequestBody) {
            // Request body headers are only present when installed as a network interceptor. Force
            // them to be included (when available) so there values are known.
            if (requestBody.contentType() != null) {
                Log.e(TAG, "Content-Type: " + requestBody.contentType());
            }
            if (requestBody.contentLength() != -1) {
                Log.e(TAG, "Content-Length: " + requestBody.contentLength());
            }
        }
 
 
        Headers headers = request.headers();
        for (int i = 0, count = headers.size(); i < count; i++) {
            String name = headers.name(i);
            // Skip headers from the request body as they are explicitly logged above.
            if (!"Content-Type".equalsIgnoreCase(name) && !"Content-Length".equalsIgnoreCase(name)) {
                Log.e(TAG, name + ": " + headers.value(i));
            }
        }
 
 
        if (!hasRequestBody) {
            Log.e(TAG, "--> END " + request.method());
        } else if (bodyHasUnknownEncoding(request.headers())) {
            Log.e(TAG, "--> END " + request.method() + " (encoded body omitted)");
        } else {
            Buffer buffer = new Buffer();
            requestBody.writeTo(buffer);
 
 
            Charset charset = UTF8;
            MediaType contentType = requestBody.contentType();
            if (contentType != null) {
                charset = contentType.charset(UTF8);
            }
 
 
            Log.e(TAG, "");
            if (isPlaintext(buffer)) {
                Log.e(TAG, buffer.readString(charset));
                Log.e(TAG, "--> END " + request.method()
                        + " (" + requestBody.contentLength() + "-byte body)");
            } else {
                Log.e(TAG, "--> END " + request.method() + " (binary "
                        + requestBody.contentLength() + "-byte body omitted)");
            }
        }
 
 
 
 
        long startNs = System.nanoTime();
        Response response;
        try {
            response = chain.proceed(request);
        } catch (Exception e) {
            Log.e(TAG, "<-- HTTP FAILED: " + e);
            throw e;
        }
        long tookMs = TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);
 
 
        ResponseBody responseBody = response.body();
        long contentLength = responseBody.contentLength();
        String bodySize = contentLength != -1 ? contentLength + "-byte" : "unknown-length";
        Log.e(TAG, "<-- "
                + response.code()
                + (response.message().isEmpty() ? "" : ' ' + response.message())
                + ' ' + response.request().url()
                + " (" + tookMs + "ms" + (", " + bodySize + " body:" + "") + ')');
 
 
        Headers myheaders = response.headers();
        for (int i = 0, count = myheaders.size(); i < count; i++) {
            Log.e(TAG, myheaders.name(i) + ": " + myheaders.value(i));
        }
 
 
        if (!HttpHeaders.hasBody(response)) {
            Log.e(TAG, "<-- END HTTP");
        } else if (bodyHasUnknownEncoding(response.headers())) {
            Log.e(TAG, "<-- END HTTP (encoded body omitted)");
        } else {
            BufferedSource source = responseBody.source();
            source.request(Long.MAX_VALUE); // Buffer the entire body.
            Buffer buffer = source.buffer();
 
 
            Long gzippedLength = null;
            if ("gzip".equalsIgnoreCase(myheaders.get("Content-Encoding"))) {
                gzippedLength = buffer.size();
                GzipSource gzippedResponseBody = null;
                try {
                    gzippedResponseBody = new GzipSource(buffer.clone());
                    buffer = new Buffer();
                    buffer.writeAll(gzippedResponseBody);
                } finally {
                    if (gzippedResponseBody != null) {
                        gzippedResponseBody.close();
                    }
                }
            }
 
 
            Charset charset = UTF8;
            MediaType contentType = responseBody.contentType();
            if (contentType != null) {
                charset = contentType.charset(UTF8);
            }
 
 
            if (!isPlaintext(buffer)) {
                Log.e(TAG, "");
                Log.e(TAG, "<-- END HTTP (binary " + buffer.size() + "-byte body omitted)");
                return response;
            }
 
 
            if (contentLength != 0) {
                Log.e(TAG, "");
                Log.e(TAG, buffer.clone().readString(charset));
            }
 
 
            if (gzippedLength != null) {
                Log.e(TAG, "<-- END HTTP (" + buffer.size() + "-byte, "
                        + gzippedLength + "-gzipped-byte body)");
            } else {
                Log.e(TAG, "<-- END HTTP (" + buffer.size() + "-byte body)");
            }
        }
 
 
        return response;
    }
 
 
    /**
     * Returns true if the body in question probably contains human readable text. Uses a small sample
     * of code points to detect unicode control characters commonly used in binary file signatures.
     */
    static boolean isPlaintext(Buffer buffer) {
        try {
            Buffer prefix = new Buffer();
            long byteCount = buffer.size() < 64 ? buffer.size() : 64;
            buffer.copyTo(prefix, 0, byteCount);
            for (int i = 0; i < 16; i++) {
                if (prefix.exhausted()) {
                    break;
                }
                int codePoint = prefix.readUtf8CodePoint();
                if (Character.isISOControl(codePoint) && !Character.isWhitespace(codePoint)) {
                    return false;
                }
            }
            return true;
        } catch (EOFException e) {
            return false; // Truncated UTF-8 sequence.
        }
    }
 
 
    private boolean bodyHasUnknownEncoding(Headers myheaders) {
        String contentEncoding = myheaders.get("Content-Encoding");
        return contentEncoding != null
                && !contentEncoding.equalsIgnoreCase("identity")
                && !contentEncoding.equalsIgnoreCase("gzip");
    }
}