package com.taobao.top.android.api;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.StringWriter;
import java.io.UnsupportedEncodingException;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.zip.GZIPInputStream;
import java.util.Set;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.KeyManager;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.net.wifi.WifiManager;
import android.text.TextUtils;
public abstract class WebUtils {
public static final String DEFAULT_CHARSET = "UTF-8";
public static final String METHOD_POST = "POST";
public static final String METHOD_GET = "GET";
private static final String USER_AGENT = "TopAndroidSDK";
private WebUtils() {
}
/**
* 执行HTTP POST请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param params
* 请求参数
* @param headers
* TODO
* @param responseError 响应码非200时是否返回响应内容。false:会throw IOException
* @return 响应字符串
* @throws IOException
*/
public static String doPost(Context context, String url,
Map<String, String> params, Map<String, String> headers,
int connectTimeout, int readTimeout, boolean responseError) throws IOException {
return doPost(context, url, params, headers, DEFAULT_CHARSET,
connectTimeout, readTimeout, responseError);
}
/**
* 执行HTTP POST请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param params
* 请求参数
* @param headers
* TODO
* @param charset
* 字符集，如UTF-8, GBK, GB2312
* @param responseError TODO
* @return 响应字符串
* @throws IOException
*/
public static String doPost(Context context, String url,
Map<String, String> params, Map<String, String> headers,
String charset, int connectTimeout, int readTimeout, boolean responseError)
throws IOException {
String ctype = "application/x-www-form-urlencoded;charset=" + charset;
String query = buildQuery(params, charset);
byte[] content = {};
if (query != null) {
content = query.getBytes(charset);
}
return doPost(context, url, ctype, content, headers, connectTimeout,
readTimeout, responseError);
}
/**
* 执行HTTP POST请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param ctype
* 请求类型
* @param content
* 请求字节数组
* @param headers
* 请求header
* @param responseError TODO
* @return 响应字符串
* @throws IOException
*/
public static String doPost(Context context, String url, String ctype,
byte[] content, Map<String, String> headers, int connectTimeout,
int readTimeout, boolean responseError) throws IOException {
HttpURLConnection conn = null;
OutputStream out = null;
String rsp = null;
try {
try {
conn = getConnection(context, new URL(url), METHOD_POST, ctype);
if (headers != null) {
Set<Entry<String, String>> set = headers.entrySet();
for (Entry<String, String> entry : set) {
conn.addRequestProperty(entry.getKey(),
entry.getValue());
}
}
conn.setConnectTimeout(connectTimeout);
conn.setReadTimeout(readTimeout);
} catch (IOException e) {
// Map<String, String> map = getParamsFromUrl(url);
// TaobaoLogger.logCommError(e,
// url,map.get("app_key"),map.get("method"), content);
throw e;
}
try {
out = conn.getOutputStream();
out.write(content);
rsp = getResponseAsString(conn, responseError);
} catch (IOException e) {
// Map<String, String> map = getParamsFromUrl(url);
// TaobaoLogger.logCommError(e,
// conn,map.get("app_key"),map.get("method"), content);
throw e;
}
} finally {
if (out != null) {
out.close();
}
if (conn != null) {
conn.disconnect();
}
}
return rsp;
}
/**
* 执行带文件上传的HTTP POST请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param fileParams
* 文件请求参数
* @param textParams
* 文本请求参数
*
* @return 响应字符串
* @throws IOException
*/
public static String doPost(Context context, String url,
Map<String, String> params, Map<String, String> headers,
Map<String, FileItem> fileParams, int connectTimeout,
int readTimeout) throws IOException {
if (fileParams == null || fileParams.isEmpty()) {
return doPost(context, url, params, headers, DEFAULT_CHARSET,
connectTimeout, readTimeout, false);
} else {
return doPost(context, url, params, headers, fileParams,
DEFAULT_CHARSET, connectTimeout, readTimeout);
}
}
/**
* 执行带文件上传的HTTP POST请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param fileParams
* 文件请求参数
* @param charset
* 字符集，如UTF-8, GBK, GB2312
* @param textParams
* 文本请求参数
*
* @return 响应字符串
* @throws IOException
*/
public static String doPost(Context context, String url,
Map<String, String> params, Map<String, String> headers,
Map<String, FileItem> fileParams, String charset,
int connectTimeout, int readTimeout) throws IOException {
String boundary = System.currentTimeMillis() + ""; // 随机分隔线
HttpURLConnection conn = null;
OutputStream out = null;
String rsp = null;
try {
try {
String ctype = "multipart/form-data;charset=" + charset
+ ";boundary=" + boundary;
conn = getConnection(context, new URL(url), METHOD_POST, ctype);
if (headers != null) {
Set<Entry<String, String>> set = headers.entrySet();
for (Entry<String, String> entry : set) {
conn.addRequestProperty(entry.getKey(),
entry.getValue());
}
}
conn.setConnectTimeout(connectTimeout);
conn.setReadTimeout(readTimeout);
} catch (IOException e) {
// Map<String, String> map = getParamsFromUrl(url);
// TaobaoLogger.logCommError(e,
// url,map.get("app_key"),map.get("method"), params);
throw e;
}
try {
out = conn.getOutputStream();
byte[] entryBoundaryBytes = ("\r\n--" + boundary + "\r\n")
.getBytes(charset);
// 组装文本请求参数
Set<Entry<String, String>> textEntrySet = params.entrySet();
for (Entry<String, String> textEntry : textEntrySet) {
byte[] textBytes = getTextEntry(textEntry.getKey(),
textEntry.getValue(), charset);
out.write(entryBoundaryBytes);
out.write(textBytes);
}
// 组装文件请求参数
Set<Entry<String, FileItem>> fileEntrySet = fileParams
.entrySet();
for (Entry<String, FileItem> fileEntry : fileEntrySet) {
FileItem fileItem = fileEntry.getValue();
byte[] fileBytes = getFileEntry(fileEntry.getKey(),
fileItem.getFileName(), fileItem.getMimeType(),
charset);
out.write(entryBoundaryBytes);
out.write(fileBytes);
out.write(fileItem.getContent());
}
// 添加请求结束标志
byte[] endBoundaryBytes = ("\r\n--" + boundary + "--\r\n")
.getBytes(charset);
out.write(endBoundaryBytes);
rsp = getResponseAsString(conn, false);
} catch (IOException e) {
// Map<String, String> map = getParamsFromUrl(url);
// TaobaoLogger.logCommError(e,
// conn,map.get("app_key"),map.get("method"), params);
throw e;
}
} finally {
if (out != null) {
out.close();
}
if (conn != null) {
conn.disconnect();
}
}
return rsp;
}
private static byte[] getTextEntry(String fieldName, String fieldValue,
String charset) throws IOException {
StringBuilder entry = new StringBuilder();
entry.append("Content-Disposition:form-data;name=\"");
entry.append(fieldName);
entry.append("\"\r\nContent-Type:text/plain\r\n\r\n");
entry.append(fieldValue);
return entry.toString().getBytes(charset);
}
private static byte[] getFileEntry(String fieldName, String fileName,
String mimeType, String charset) throws IOException {
StringBuilder entry = new StringBuilder();
entry.append("Content-Disposition:form-data;name=\"");
entry.append(fieldName);
entry.append("\";filename=\"");
entry.append(fileName);
entry.append("\"\r\nContent-Type:");
entry.append(mimeType);
entry.append("\r\n\r\n");
return entry.toString().getBytes(charset);
}
/**
* 执行HTTP GET请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param params
* 请求参数
*
* @return 响应字符串
* @throws IOException
*/
public static String doGet(Context context, String url,
Map<String, String> params) throws IOException {
return doGet(context, url, params, DEFAULT_CHARSET);
}
/**
* 执行HTTP GET请求。
*
* @param context
* TODO
* @param url
* 请求地址
* @param params
* 请求参数
* @param charset
* 字符集，如UTF-8, GBK, GB2312
*
* @return 响应字符串
* @throws IOException
*/
public static String doGet(Context context, String url,
Map<String, String> params, String charset) throws IOException {
HttpURLConnection conn = null;
String rsp = null;
try {
String ctype = "application/x-www-form-urlencoded;charset="
+ charset;
String query = buildQuery(params, charset);
try {
conn = getConnection(context, buildGetUrl(url, query),
METHOD_GET, ctype);
} catch (IOException e) {
// Map<String, String> map = getParamsFromUrl(url);
// TaobaoLogger.logCommError(e,
// url,map.get("app_key"),map.get("method"), params);
throw e;
}
try {
rsp = getResponseAsString(conn, false);
} catch (IOException e) {
// Map<String, String> map = getParamsFromUrl(url);
// TaobaoLogger.logCommError(e,
// conn,map.get("app_key"),map.get("method"), params);
throw e;
}
} finally {
if (conn != null) {
conn.disconnect();
}
}
return rsp;
}
private static HttpURLConnection getConnection(Context context, URL url,
String method, String ctype) throws IOException {
Proxy proxy = null;
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
if (!wifiManager.isWifiEnabled()) {
// 获取当前正在使用的APN接入点
Uri uri = Uri.parse("content://telephony/carriers/preferapn");
Cursor mCursor = context.getContentResolver().query(uri, null,
null, null, null);
if (mCursor != null && mCursor.moveToFirst()) {
// 游标移至第一条记录，当然也只有一条
String proxyStr = mCursor.getString(mCursor
.getColumnIndex("proxy"));
if (proxyStr != null && proxyStr.trim().length() > 0) {
proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(
proxyStr, 80));
}
mCursor.close();
}
}
HttpURLConnection conn = null;
if ("https".equals(url.getProtocol())) {
SSLContext ctx = null;
try {
ctx = SSLContext.getInstance("TLS");
ctx.init(new KeyManager[0],
new TrustManager[] { new DefaultTrustManager() },
new SecureRandom());
} catch (Exception e) {
throw new IOException(e.getMessage());
}
HttpsURLConnection connHttps = null;
if (proxy == null) {
connHttps = (HttpsURLConnection) url.openConnection();
} else {
connHttps = (HttpsURLConnection) url.openConnection(proxy);
}
connHttps.setSSLSocketFactory(ctx.getSocketFactory());
connHttps.setHostnameVerifier(new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;// 默认都认证通过
}
});
conn = connHttps;
} else {
if (proxy == null) {
conn = (HttpURLConnection) url.openConnection();
} else {
conn = (HttpURLConnection) url.openConnection(proxy);
}
}
conn.setRequestMethod(method);
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestProperty("Accept", "text/xml,text/javascript,text/html");
conn.setRequestProperty("User-Agent", USER_AGENT);
conn.setRequestProperty("Content-Type", ctype);
conn.setRequestProperty("Accept-Encoding", "gzip");//support gzip
return conn;
}
public static URL buildGetUrl(String url, Map<String, String> params,
String charset) throws IOException {
String queryString = buildQuery(params, charset);
return buildGetUrl(url, queryString);
}
private static URL buildGetUrl(String strUrl, String query)
throws IOException {
URL url = new URL(strUrl);
if (TextUtils.isEmpty(query)) {
return url;
}
if (TextUtils.isEmpty(url.getQuery())) {
if (strUrl.endsWith("?")) {
strUrl = strUrl + query;
} else {
strUrl = strUrl + "?" + query;
}
} else {
if (strUrl.endsWith("&")) {
strUrl = strUrl + query;
} else {
strUrl = strUrl + "&" + query;
}
}
return new URL(strUrl);
}
public static String buildQuery(Map<String, String> params, String charset)
throws UnsupportedEncodingException {
if (params == null || params.isEmpty()) {
return null;
}
if (TextUtils.isEmpty(charset)) {
charset = DEFAULT_CHARSET;
}
StringBuilder query = new StringBuilder();
Set<Entry<String, String>> entries = params.entrySet();
boolean hasParam = false;
for (Entry<String, String> entry : entries) {
String name = entry.getKey();
String value = entry.getValue();
// 忽略参数名或参数值为空的参数
if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(value)) {
if (hasParam) {
query.append("&");
} else {
hasParam = true;
}
query.append(name).append("=")
.append(URLEncoder.encode(value, charset));
}
}
return query.toString();
}
/**
* 获取http响应内容<br>
* 当响应状态码不等于200时，如果要换取响应的内容responseError参数请输入true。否则会抛出IOException
*
* @param conn
* @param responseError
* @return
* @throws IOException
*/
protected static String getResponseAsString(HttpURLConnection conn,
boolean responseError) throws IOException {
String charset = getResponseCharset(conn.getContentType());
String header = conn.getHeaderField("Content-Encoding");
boolean isGzip = false;
if (header != null && header.toLowerCase().contains("gzip")) {
isGzip = true;
}
InputStream es = conn.getErrorStream();
if (es == null) {
InputStream input = conn.getInputStream();
if (isGzip) {
input = new GZIPInputStream(input);
}
return getStreamAsString(input, charset);
} else {
if (isGzip) {
es = new GZIPInputStream(es);
}
String msg = getStreamAsString(es, charset);
if (TextUtils.isEmpty(msg)) {
throw new IOException(conn.getResponseCode() + ":"
+ conn.getResponseMessage());
} else if (responseError) {
return msg;
} else {
throw new IOException(msg);
}
}
}
private static String getStreamAsString(InputStream stream, String charset)
throws IOException {
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
stream, charset));
StringWriter writer = new StringWriter();
char[] chars = new char[256];
int count = 0;
while ((count = reader.read(chars)) > 0) {
writer.write(chars, 0, count);
}
return writer.toString();
} finally {
if (stream != null) {
stream.close();
}
}
}
private static String getResponseCharset(String ctype) {
String charset = DEFAULT_CHARSET;
if (!TextUtils.isEmpty(ctype)) {
String[] params = ctype.split(";");
for (String param : params) {
param = param.trim();
if (param.startsWith("charset")) {
String[] pair = param.split("=", 2);
if (pair.length == 2) {
if (!TextUtils.isEmpty(pair[1])) {
charset = pair[1].trim();
}
}
break;
}
}
}
return charset;
}
/**
* 使用默认的UTF-8字符集反编码请求参数值。
*
* @param value
* 参数值
* @return 反编码后的参数值
*/
public static String decode(String value) {
return decode(value, DEFAULT_CHARSET);
}
/**
* 使用默认的UTF-8字符集编码请求参数值。
*
* @param value
* 参数值
* @return 编码后的参数值
*/
public static String encode(String value) {
return encode(value, DEFAULT_CHARSET);
}
/**
* 使用指定的字符集反编码请求参数值。
*
* @param value
* 参数值
* @param charset
* 字符集
* @return 反编码后的参数值
*/
public static String decode(String value, String charset) {
String result = null;
if (!TextUtils.isEmpty(value)) {
try {
result = URLDecoder.decode(value, charset);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return result;
}
/**
* 使用指定的字符集编码请求参数值。
*
* @param value
* 参数值
* @param charset
* 字符集
* @return 编码后的参数值
*/
public static String encode(String value, String charset) {
String result = null;
if (!TextUtils.isEmpty(value)) {
try {
result = URLEncoder.encode(value, charset);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
return result;
}
// private static Map<String, String> getParamsFromUrl(String url) {
// Map<String, String> map = null;
// if (url != null && url.indexOf('?') != -1) {
// map = splitUrlQuery(url.substring(url.indexOf('?') + 1));
// }
// if (map == null) {
// map = new HashMap<String, String>();
// }
// return map;
// }
/**
* 从URL中提取所有的参数。
*
* @param query
* URL地址
* @return 参数映射
*/
public static Map<String, String> splitUrlQuery(String query) {
Map<String, String> result = new HashMap<String, String>();
String[] pairs = query.split("&");
if (pairs != null && pairs.length > 0) {
for (String pair : pairs) {
String[] param = pair.split("=", 2);
if (param != null && param.length == 2) {
result.put(param[0], param[1]);
}
}
}
return result;
}
private static class DefaultTrustManager implements X509TrustManager {
public X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
public void checkServerTrusted(X509Certificate[] chain, String authType)
throws CertificateException {
}
}
}