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v0.0.1-beta; add checkUpdate support
Signed-off-by: Jerry Chen <jerryc05@qq.com>
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Jerry Chen
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Jul 9, 2019
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174 changes: 174 additions & 0 deletions
174
app/src/main/java/jerryc05/unlockme/helpers/URLConnectionBuilder.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,174 @@ | ||
| package jerryc05.unlockme.helpers; | ||
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| import android.util.Log; | ||
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| import java.io.ByteArrayOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.net.HttpURLConnection; | ||
| import java.net.URL; | ||
| import java.net.URLConnection; | ||
| import java.nio.charset.StandardCharsets; | ||
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| import javax.net.ssl.HttpsURLConnection; | ||
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| import jerryc05.unlockme.BuildConfig; | ||
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| /** | ||
| * A builder for URLConnection class. | ||
| * | ||
| * @author \ | ||
| * \ d88b d88888b d8888b. d8888b. db db .o88b. .d88b. ooooo | ||
| * \ `8P' 88' 88 `8D 88 `8D `8b d8' d8P Y8 .8P 88. 8P~~~~ | ||
| * \ 88 88ooooo 88oobY' 88oobY' `8bd8' 8P 88 d'88 dP | ||
| * \ 88 88~~~~~ 88`8b 88`8b 88 8b 88 d' 88 V8888b. | ||
| * \ db. 88 88. 88 `88. 88 `88. 88 Y8b d8 `88 d8' `8D | ||
| * \ Y8888P Y88888P 88 YD 88 YD YP `Y88P' `Y88P' 88oobY' | ||
| * @see java.net.URLConnection | ||
| * @see java.net.HttpURLConnection | ||
| * @see javax.net.ssl.HttpsURLConnection | ||
| */ | ||
| @SuppressWarnings({"WeakerAccess", "unused"}) | ||
| public class URLConnectionBuilder implements AutoCloseable { | ||
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| private final static String | ||
| TAG = URLConnectionBuilder.class.getName(); | ||
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| public final static String | ||
| METHOD_GET = "GET", | ||
| METHOD_POST = "POST", | ||
| METHOD_HEAD = "HEAD", | ||
| METHOD_OPTIONS = "OPTIONS", | ||
| METHOD_PUT = "PUT", | ||
| METHOD_DELETE = "DELETE", | ||
| METHOD_TRACE = "TRACE"; | ||
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| @Override | ||
| public void close() { | ||
| disconnect(); | ||
| } | ||
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| private boolean isHTTP; | ||
| private URLConnection urlConnection; | ||
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| private URLConnectionBuilder(String _baseURL) throws IOException { | ||
| _baseURL = _baseURL.trim(); | ||
| if (!_baseURL.startsWith("http://") && !_baseURL.startsWith("https://")) | ||
| throw new UnsupportedOperationException( | ||
| "${baseURL} prefix not recognized: " + _baseURL); | ||
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| urlConnection = new URL(_baseURL).openConnection(); | ||
| urlConnection.setConnectTimeout(5 * 1000); | ||
| urlConnection.setReadTimeout(5 * 1000); | ||
| isHTTP = _baseURL.charAt(4) == ':'; | ||
| } | ||
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| public static URLConnectionBuilder get(String _baseURL) throws IOException { | ||
| return new URLConnectionBuilder(_baseURL); | ||
| } | ||
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| public static URLConnectionBuilder post(String _baseURL) throws IOException { | ||
| return new URLConnectionBuilder(_baseURL).setRequestMethod(METHOD_POST); | ||
| } | ||
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| public URLConnectionBuilder connect() throws IOException { | ||
| checkNullUrlConnection("run"); | ||
| (isHTTP ? urlConnection | ||
| : (HttpsURLConnection) urlConnection).connect(); | ||
| return this; | ||
| } | ||
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| public String getResult(String charset) throws IOException { | ||
| try { | ||
| String result; | ||
| { | ||
| InputStream inputStream = (isHTTP | ||
| ? urlConnection | ||
| : (HttpsURLConnection) urlConnection).getInputStream(); | ||
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); | ||
| byte[] buffer = new byte[1024]; | ||
| int length; | ||
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| while ((length = inputStream.read(buffer)) != -1) | ||
| outputStream.write(buffer, 0, length); | ||
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| result = outputStream.toString(charset); | ||
| inputStream.close(); | ||
| } | ||
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| if (BuildConfig.DEBUG) | ||
| Log.d(TAG, "connect: Response code = " + (isHTTP | ||
| ? (HttpURLConnection) urlConnection | ||
| : (HttpsURLConnection) urlConnection) | ||
| .getResponseCode() | ||
| + "\n================ Respond content ================\n" | ||
| + result); | ||
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| return result; | ||
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| } catch (Exception e) { | ||
| Log.e(TAG, "connect: ", e); | ||
| throw e; | ||
| } | ||
| } | ||
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| public String getResult() throws IOException { | ||
| return getResult(StandardCharsets.UTF_8.name()); | ||
| } | ||
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| public void disconnect() { | ||
| checkNullUrlConnection("disconnect"); | ||
| (isHTTP ? (HttpURLConnection) urlConnection | ||
| : (HttpsURLConnection) urlConnection) | ||
| .disconnect(); | ||
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| if (BuildConfig.DEBUG) | ||
| Log.d(TAG, "disconnect: " + urlConnection.getURL()); | ||
| } | ||
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| public URLConnectionBuilder setRequestMethod(String _requestMethod) { | ||
| try { | ||
| (isHTTP ? (HttpURLConnection) urlConnection | ||
| : (HttpsURLConnection) urlConnection) | ||
| .setRequestMethod(_requestMethod); | ||
| } catch (java.net.ProtocolException e) { | ||
| Log.e(TAG, "setRequestMethod: ", e); | ||
| } | ||
| return this; | ||
| } | ||
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| public URLConnectionBuilder setConnectTimeout(int _connectTimeout) { | ||
| urlConnection.setConnectTimeout(_connectTimeout); | ||
| return this; | ||
| } | ||
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| public URLConnectionBuilder setReadTimeout(int _readTimeout) { | ||
| urlConnection.setReadTimeout(_readTimeout); | ||
| return this; | ||
| } | ||
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| public URLConnectionBuilder setUseCache(boolean _useCache) { | ||
| urlConnection.setUseCaches(_useCache); | ||
| return this; | ||
| } | ||
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| public URLConnectionBuilder setRequestProperty(String key, String value) { | ||
| urlConnection.setRequestProperty(key, value); | ||
| return this; | ||
| } | ||
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| public URLConnection getUrlConnection() { | ||
| checkNullUrlConnection("get"); | ||
| return urlConnection; | ||
| } | ||
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| public URLConnection _getUrlConnection() { | ||
| return urlConnection; | ||
| } | ||
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| private void checkNullUrlConnection(String action) { | ||
| if (urlConnection == null) | ||
| throw new UnsupportedOperationException( | ||
| "Cannot " + action + " null instance decodeURL ${urlConnection}!"); | ||
| } | ||
| } |