List of usage examples for java.io DataInputStream readFully
public final void readFully(byte b[]) throws IOException
From source file:ru.ivanovpv.gorets.psm.mms.transaction.HttpUtils.java
/** * A helper method to send or retrieve data through HTTP protocol. * * @param token The token to identify the sending progress. * @param url The URL used in a GET request. Null when the method is * HTTP_POST_METHOD.//from w w w .jav a 2 s. co m * @param pdu The data to be POST. Null when the method is HTTP_GET_METHOD. * @param method HTTP_POST_METHOD or HTTP_GET_METHOD. * @return A byte array which contains the response data. * If an HTTP error code is returned, an IOException will be thrown. * @throws IOException if any error occurred on network interface or * an HTTP error code(>=400) returned from the server. */ public static byte[] httpConnection(Context context, long token, String url, byte[] pdu, int method, boolean isProxySet, String proxyHost, int proxyPort) throws IOException { if (url == null) { throw new IllegalArgumentException("URL must not be null."); } if (DEBUG) { Log.v(TAG, "httpConnection: params list"); Log.v(TAG, "\ttoken\t\t= " + token); Log.v(TAG, "\turl\t\t= " + url); Log.v(TAG, "\tmethod\t\t= " + ((method == HTTP_POST_METHOD) ? "POST" : ((method == HTTP_GET_METHOD) ? "GET" : "UNKNOWN"))); Log.v(TAG, "\tisProxySet\t= " + isProxySet); Log.v(TAG, "\tproxyHost\t= " + proxyHost); Log.v(TAG, "\tproxyPort\t= " + proxyPort); // TODO Print out binary data more readable. //Log.v(TAG, "\tpdu\t\t= " + Arrays.toString(pdu)); } AndroidHttpClient client = null; try { // Make sure to use a proxy which supports CONNECT. URI hostUrl = new URI(url); HttpHost target = new HttpHost(hostUrl.getHost(), hostUrl.getPort(), HttpHost.DEFAULT_SCHEME_NAME); client = createHttpClient(context); HttpRequest req = null; switch (method) { case HTTP_POST_METHOD: ProgressCallbackEntity entity = new ProgressCallbackEntity(context, token, pdu); // Set request content type. entity.setContentType("application/vnd.wap.mms-message"); HttpPost post = new HttpPost(url); post.setEntity(entity); req = post; break; case HTTP_GET_METHOD: req = new HttpGet(url); break; default: Log.e(TAG, "Unknown HTTP method: " + method + ". Must be one of POST[" + HTTP_POST_METHOD + "] or GET[" + HTTP_GET_METHOD + "]."); return null; } // Set route parameters for the request. HttpParams params = client.getParams(); if (isProxySet) { ConnRouteParams.setDefaultProxy(params, new HttpHost(proxyHost, proxyPort)); } req.setParams(params); // Set necessary HTTP headers for MMS transmission. req.addHeader(HDR_KEY_ACCEPT, HDR_VALUE_ACCEPT); { String xWapProfileTagName = MmsConfig.getUaProfTagName(); String xWapProfileUrl = MmsConfig.getUaProfUrl(); if (xWapProfileUrl != null) { if (DEBUG) { Log.d(TAG, "[HttpUtils] httpConn: xWapProfUrl=" + xWapProfileUrl); } req.addHeader(xWapProfileTagName, xWapProfileUrl); } } // Extra http parameters. Split by '|' to get a list of value pairs. // Separate each pair by the first occurrence of ':' to obtain a name and // value. Replace the occurrence of the string returned by // MmsConfig.getHttpParamsLine1Key() with the users telephone number inside // the value. String extraHttpParams = MmsConfig.getHttpParams(); if (extraHttpParams != null) { String line1Number = ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)) .getLine1Number(); String line1Key = MmsConfig.getHttpParamsLine1Key(); String paramList[] = extraHttpParams.split("\\|"); for (String paramPair : paramList) { String splitPair[] = paramPair.split(":", 2); if (splitPair.length == 2) { String name = splitPair[0].trim(); String value = splitPair[1].trim(); if (line1Key != null) { value = value.replace(line1Key, line1Number); } if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(value)) { req.addHeader(name, value); } } } } req.addHeader(HDR_KEY_ACCEPT_LANGUAGE, HDR_VALUE_ACCEPT_LANGUAGE); HttpResponse response = client.execute(target, req); StatusLine status = response.getStatusLine(); if (status.getStatusCode() != 200) { // HTTP 200 is success. throw new IOException("HTTP error: " + status.getReasonPhrase()); } HttpEntity entity = response.getEntity(); byte[] body = null; if (entity != null) { try { if (entity.getContentLength() > 0) { body = new byte[(int) entity.getContentLength()]; DataInputStream dis = new DataInputStream(entity.getContent()); try { dis.readFully(body); } finally { try { dis.close(); } catch (IOException e) { Log.e(TAG, "Error closing input stream: " + e.getMessage()); } } } if (entity.isChunked()) { Log.v(TAG, "httpConnection: transfer encoding is chunked"); int bytesTobeRead = MmsConfig.getMaxMessageSize(); byte[] tempBody = new byte[bytesTobeRead]; DataInputStream dis = new DataInputStream(entity.getContent()); try { int bytesRead = 0; int offset = 0; boolean readError = false; do { try { bytesRead = dis.read(tempBody, offset, bytesTobeRead); } catch (IOException e) { readError = true; Log.e(TAG, "httpConnection: error reading input stream" + e.getMessage()); break; } if (bytesRead > 0) { bytesTobeRead -= bytesRead; offset += bytesRead; } } while (bytesRead >= 0 && bytesTobeRead > 0); if (bytesRead == -1 && offset > 0 && !readError) { // offset is same as total number of bytes read // bytesRead will be -1 if the data was read till the eof body = new byte[offset]; System.arraycopy(tempBody, 0, body, 0, offset); Log.v(TAG, "httpConnection: Chunked response length [" + Integer.toString(offset) + "]"); } else { Log.e(TAG, "httpConnection: Response entity too large or empty"); } } finally { try { dis.close(); } catch (IOException e) { Log.e(TAG, "Error closing input stream: " + e.getMessage()); } } } } finally { if (entity != null) { entity.consumeContent(); } } } return body; } catch (URISyntaxException e) { handleHttpConnectionException(e, url); } catch (IllegalStateException e) { handleHttpConnectionException(e, url); } catch (IllegalArgumentException e) { handleHttpConnectionException(e, url); } catch (SocketException e) { handleHttpConnectionException(e, url); } catch (Exception e) { handleHttpConnectionException(e, url); } finally { if (client != null) { client.close(); } } return null; }
From source file:com.geocine.mms.com.android.mms.transaction.HttpUtils.java
/** * A helper method to send or retrieve data through HTTP protocol. * * @param token The token to identify the sending progress. * @param url The URL used in a GET request. Null when the method is * HTTP_POST_METHOD.// w w w . j ava 2 s.c o m * @param pdu The data to be POST. Null when the method is HTTP_GET_METHOD. * @param method HTTP_POST_METHOD or HTTP_GET_METHOD. * @return A byte array which contains the response data. * If an HTTP error code is returned, an IOException will be thrown. * @throws IOException if any error occurred on network interface or * an HTTP error code(>=400) returned from the server. */ protected static byte[] httpConnection(Context context, long token, String url, byte[] pdu, int method, boolean isProxySet, String proxyHost, int proxyPort) throws IOException { if (url == null) { throw new IllegalArgumentException("URL must not be null."); } if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) { Log.v(TAG, "httpConnection: params list"); Log.v(TAG, "\ttoken\t\t= " + token); Log.v(TAG, "\turl\t\t= " + url); Log.v(TAG, "\tmethod\t\t= " + ((method == HTTP_POST_METHOD) ? "POST" : ((method == HTTP_GET_METHOD) ? "GET" : "UNKNOWN"))); Log.v(TAG, "\tisProxySet\t= " + isProxySet); Log.v(TAG, "\tproxyHost\t= " + proxyHost); Log.v(TAG, "\tproxyPort\t= " + proxyPort); // TODO Print out binary data more readable. //Log.v(TAG, "\tpdu\t\t= " + Arrays.toString(pdu)); } AndroidHttpClient client = null; try { // Make sure to use a proxy which supports CONNECT. URI hostUrl = new URI(url); HttpHost target = new HttpHost(hostUrl.getHost(), hostUrl.getPort(), HttpHost.DEFAULT_SCHEME_NAME); client = createHttpClient(context); HttpRequest req = null; switch (method) { case HTTP_POST_METHOD: ProgressCallbackEntity entity = new ProgressCallbackEntity(context, token, pdu); // Set request content type. entity.setContentType("application/vnd.wap.mms-message"); HttpPost post = new HttpPost(url); post.setEntity(entity); req = post; break; case HTTP_GET_METHOD: req = new HttpGet(url); break; default: Log.e(TAG, "Unknown HTTP method: " + method + ". Must be one of POST[" + HTTP_POST_METHOD + "] or GET[" + HTTP_GET_METHOD + "]."); return null; } // Set route parameters for the request. HttpParams params = client.getParams(); if (isProxySet) { ConnRouteParams.setDefaultProxy(params, new HttpHost(proxyHost, proxyPort)); } req.setParams(params); // Set necessary HTTP headers for MMS transmission. req.addHeader(HDR_KEY_ACCEPT, HDR_VALUE_ACCEPT); { String xWapProfileTagName = MmsConfig.getUaProfTagName(); String xWapProfileUrl = MmsConfig.getUaProfUrl(); if (xWapProfileUrl != null) { if (Log.isLoggable(LogTag.TRANSACTION, Log.VERBOSE)) { Log.d(LogTag.TRANSACTION, "[HttpUtils] httpConn: xWapProfUrl=" + xWapProfileUrl); } req.addHeader(xWapProfileTagName, xWapProfileUrl); } } // Extra http parameters. Split by '|' to get a list of value pairs. // Separate each pair by the first occurrence of ':' to obtain a name and // value. Replace the occurrence of the string returned by // MmsConfig.getHttpParamsLine1Key() with the users telephone number inside // the value. String extraHttpParams = MmsConfig.getHttpParams(); if (extraHttpParams != null) { String line1Number = ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)) .getLine1Number(); String line1Key = MmsConfig.getHttpParamsLine1Key(); String paramList[] = extraHttpParams.split("\\|"); for (String paramPair : paramList) { String splitPair[] = paramPair.split(":", 2); if (splitPair.length == 2) { String name = splitPair[0].trim(); String value = splitPair[1].trim(); if (line1Key != null) { value = value.replace(line1Key, line1Number); } if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(value)) { req.addHeader(name, value); } } } } req.addHeader(HDR_KEY_ACCEPT_LANGUAGE, HDR_VALUE_ACCEPT_LANGUAGE); HttpResponse response = client.execute(target, req); StatusLine status = response.getStatusLine(); if (status.getStatusCode() != 200) { // HTTP 200 is success. throw new IOException("HTTP error: " + status.getReasonPhrase()); } HttpEntity entity = response.getEntity(); byte[] body = null; if (entity != null) { try { if (entity.getContentLength() > 0) { body = new byte[(int) entity.getContentLength()]; DataInputStream dis = new DataInputStream(entity.getContent()); try { dis.readFully(body); } finally { try { dis.close(); } catch (IOException e) { Log.e(TAG, "Error closing input stream: " + e.getMessage()); } } } if (entity.isChunked()) { Log.v(TAG, "httpConnection: transfer encoding is chunked"); int bytesTobeRead = MmsConfig.getMaxMessageSize(); byte[] tempBody = new byte[bytesTobeRead]; DataInputStream dis = new DataInputStream(entity.getContent()); try { int bytesRead = 0; int offset = 0; boolean readError = false; do { try { bytesRead = dis.read(tempBody, offset, bytesTobeRead); } catch (IOException e) { readError = true; Log.e(TAG, "httpConnection: error reading input stream" + e.getMessage()); break; } if (bytesRead > 0) { bytesTobeRead -= bytesRead; offset += bytesRead; } } while (bytesRead >= 0 && bytesTobeRead > 0); if (bytesRead == -1 && offset > 0 && !readError) { // offset is same as total number of bytes read // bytesRead will be -1 if the data was read till the eof body = new byte[offset]; System.arraycopy(tempBody, 0, body, 0, offset); Log.v(TAG, "httpConnection: Chunked response length [" + Integer.toString(offset) + "]"); } else { Log.e(TAG, "httpConnection: Response entity too large or empty"); } } finally { try { dis.close(); } catch (IOException e) { Log.e(TAG, "Error closing input stream: " + e.getMessage()); } } } } finally { if (entity != null) { entity.consumeContent(); } } } return body; } catch (URISyntaxException e) { handleHttpConnectionException(e, url); } catch (IllegalStateException e) { handleHttpConnectionException(e, url); } catch (IllegalArgumentException e) { handleHttpConnectionException(e, url); } catch (SocketException e) { handleHttpConnectionException(e, url); } catch (Exception e) { handleHttpConnectionException(e, url); } finally { if (client != null) { client.close(); } } return null; }
From source file:com.android.mms.service.HttpUtils.java
/** * A helper method to send or retrieve data through HTTP protocol. * * @param url The URL used in a GET request. Null when the method is * HTTP_POST_METHOD./* www .ja va2 s . co m*/ * @param pdu The data to be POST. Null when the method is HTTP_GET_METHOD. * @param method HTTP_POST_METHOD or HTTP_GET_METHOD. * @param isProxySet If proxy is set * @param proxyHost The host of the proxy * @param proxyPort The port of the proxy * @param resolver The custom name resolver to use * @param useIpv6 If we should use IPv6 address when the HTTP client resolves the host name * @param mmsConfig The MmsConfig to use * @return A byte array which contains the response data. * If an HTTP error code is returned, an IOException will be thrown. * @throws com.android.mms.service.exception.MmsHttpException if HTTP request gets error response (>=400) */ public static byte[] httpConnection(Context context, String url, byte[] pdu, int method, boolean isProxySet, String proxyHost, int proxyPort, NameResolver resolver, boolean useIpv6, MmsConfig.Overridden mmsConfig) throws MmsHttpException { final String methodString = getMethodString(method); Log.v(TAG, "HttpUtils: request param list\n" + "url=" + url + "\n" + "method=" + methodString + "\n" + "isProxySet=" + isProxySet + "\n" + "proxyHost=" + proxyHost + "\n" + "proxyPort=" + proxyPort + "\n" + "size=" + (pdu != null ? pdu.length : 0)); NetworkAwareHttpClient client = null; try { // Make sure to use a proxy which supports CONNECT. URI hostUrl = new URI(url); HttpHost target = new HttpHost(hostUrl.getHost(), hostUrl.getPort(), HttpHost.DEFAULT_SCHEME_NAME); client = createHttpClient(context, resolver, useIpv6, mmsConfig); HttpRequest req = null; switch (method) { case HTTP_POST_METHOD: ByteArrayEntity entity = new ByteArrayEntity(pdu); // Set request content type. entity.setContentType("application/vnd.wap.mms-message"); HttpPost post = new HttpPost(url); post.setEntity(entity); req = post; break; case HTTP_GET_METHOD: req = new HttpGet(url); break; } // Set route parameters for the request. HttpParams params = client.getParams(); if (isProxySet) { ConnRouteParams.setDefaultProxy(params, new HttpHost(proxyHost, proxyPort)); } req.setParams(params); // Set necessary HTTP headers for MMS transmission. req.addHeader(HDR_KEY_ACCEPT, HDR_VALUE_ACCEPT); // UA Profile URL header String xWapProfileTagName = mmsConfig.getUaProfTagName(); String xWapProfileUrl = mmsConfig.getUaProfUrl(); if (xWapProfileUrl != null) { Log.v(TAG, "HttpUtils: xWapProfUrl=" + xWapProfileUrl); req.addHeader(xWapProfileTagName, xWapProfileUrl); } // Extra http parameters. Split by '|' to get a list of value pairs. // Separate each pair by the first occurrence of ':' to obtain a name and // value. Replace the occurrence of the string returned by // MmsConfig.getHttpParamsLine1Key() with the users telephone number inside // the value. And replace the occurrence of the string returned by // MmsConfig.getHttpParamsNaiKey() with the users NAI(Network Access Identifier) // inside the value. String extraHttpParams = mmsConfig.getHttpParams(); if (!TextUtils.isEmpty(extraHttpParams)) { // Parse the parameter list String paramList[] = extraHttpParams.split("\\|"); for (String paramPair : paramList) { String splitPair[] = paramPair.split(":", 2); if (splitPair.length == 2) { final String name = splitPair[0].trim(); final String value = resolveMacro(context, splitPair[1].trim(), mmsConfig); if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(value)) { req.addHeader(name, value); } } } } req.addHeader(HDR_KEY_ACCEPT_LANGUAGE, getCurrentAcceptLanguage(Locale.getDefault())); final HttpResponse response = client.execute(target, req); final StatusLine status = response.getStatusLine(); final HttpEntity entity = response.getEntity(); Log.d(TAG, "HttpUtils: status=" + status + " size=" + (entity != null ? entity.getContentLength() : -1)); for (Header header : req.getAllHeaders()) { if (header != null) { Log.v(TAG, "HttpUtils: header " + header.getName() + "=" + header.getValue()); } } byte[] body = null; if (entity != null) { try { if (entity.getContentLength() > 0) { body = new byte[(int) entity.getContentLength()]; DataInputStream dis = new DataInputStream(entity.getContent()); try { dis.readFully(body); } finally { try { dis.close(); } catch (IOException e) { Log.e(TAG, "HttpUtils: Error closing input stream: " + e.getMessage()); } } } if (entity.isChunked()) { Log.d(TAG, "HttpUtils: transfer encoding is chunked"); int bytesTobeRead = mmsConfig.getMaxMessageSize(); byte[] tempBody = new byte[bytesTobeRead]; DataInputStream dis = new DataInputStream(entity.getContent()); try { int bytesRead = 0; int offset = 0; boolean readError = false; do { try { bytesRead = dis.read(tempBody, offset, bytesTobeRead); } catch (IOException e) { readError = true; Log.e(TAG, "HttpUtils: error reading input stream", e); break; } if (bytesRead > 0) { bytesTobeRead -= bytesRead; offset += bytesRead; } } while (bytesRead >= 0 && bytesTobeRead > 0); if (bytesRead == -1 && offset > 0 && !readError) { // offset is same as total number of bytes read // bytesRead will be -1 if the data was read till the eof body = new byte[offset]; System.arraycopy(tempBody, 0, body, 0, offset); Log.d(TAG, "HttpUtils: Chunked response length " + offset); } else { Log.e(TAG, "HttpUtils: Response entity too large or empty"); } } finally { try { dis.close(); } catch (IOException e) { Log.e(TAG, "HttpUtils: Error closing input stream", e); } } } } finally { if (entity != null) { entity.consumeContent(); } } } if (status.getStatusCode() != 200) { // HTTP 200 is success. StringBuilder sb = new StringBuilder(); if (body != null) { sb.append("response: text=").append(new String(body)).append('\n'); } for (Header header : req.getAllHeaders()) { if (header != null) { sb.append("req header: ").append(header.getName()).append('=').append(header.getValue()) .append('\n'); } } for (Header header : response.getAllHeaders()) { if (header != null) { sb.append("resp header: ").append(header.getName()).append('=').append(header.getValue()) .append('\n'); } } Log.e(TAG, "HttpUtils: error response -- \n" + "mStatusCode=" + status.getStatusCode() + "\n" + "reason=" + status.getReasonPhrase() + "\n" + "url=" + url + "\n" + "method=" + methodString + "\n" + "isProxySet=" + isProxySet + "\n" + "proxyHost=" + proxyHost + "\n" + "proxyPort=" + proxyPort + (sb != null ? "\n" + sb.toString() : "")); throw new MmsHttpException(status.getReasonPhrase()); } return body; } catch (IOException e) { Log.e(TAG, "HttpUtils: IO failure", e); throw new MmsHttpException(e); } catch (URISyntaxException e) { Log.e(TAG, "HttpUtils: invalid url " + url); throw new MmsHttpException("Invalid url " + url); } finally { if (client != null) { client.close(); } } }
From source file:PNGDecoder.java
protected static PNGData readChunks(DataInputStream in) throws IOException { PNGData chunks = new PNGData(); boolean trucking = true; while (trucking) { try {/*from w w w. j a v a 2 s.co m*/ // Read the length. int length = in.readInt(); if (length < 0) throw new IOException("Sorry, that file is too long."); // Read the type. byte[] typeBytes = new byte[4]; in.readFully(typeBytes); // Read the data. byte[] data = new byte[length]; in.readFully(data); // Read the CRC. long crc = in.readInt() & 0x00000000ffffffffL; // Make it // unsigned. if (verifyCRC(typeBytes, data, crc) == false) throw new IOException("That file appears to be corrupted."); PNGChunk chunk = new PNGChunk(typeBytes, data); chunks.add(chunk); } catch (EOFException eofe) { trucking = false; } } return chunks; }
From source file:r.base.Connections.java
public static byte[] readRawFromFile(@Current Context context, String file, IntVector key) throws IOException { if (key.length() != 2) { throw new EvalException("bad offset/length argument"); }//ww w.java 2s . c om int offset = key.getElementAsInt(0); int length = key.getElementAsInt(1); byte buffer[] = new byte[length]; DataInputStream in = new DataInputStream(openInput(context, file)); in.skipBytes(offset); in.readFully(buffer); in.close(); return buffer; }
From source file:com.tactfactory.harmony.utils.TactFileUtils.java
/** convert file content to a string. * * @param file The file to open// w w w.j av a 2s .c om * @return the String containing the file contents */ public static String fileToString(final File file) { String result = null; DataInputStream inStream = null; try { final byte[] buffer = new byte[(int) file.length()]; inStream = new DataInputStream(new FileInputStream(file)); inStream.readFully(buffer); result = new String(buffer, TactFileUtils.DEFAULT_ENCODING); } catch (final IOException e) { throw new RuntimeException("IO problem in fileToString", e); } finally { try { if (inStream != null) { inStream.close(); } } catch (final IOException e) { ConsoleUtils.displayError(e); } } return result; }
From source file:org.hubiquitus.hubotsdk.Hubot.java
public static String fileToString(String file) { String result = null;//from w w w. j a v a 2 s .c o m DataInputStream in = null; try { File f = new File(file); byte[] buffer = new byte[(int) f.length()]; in = new DataInputStream(new FileInputStream(f)); in.readFully(buffer); result = new String(buffer); } catch (IOException e) { throw new RuntimeException("IO problem in fileToString", e); } finally { try { in.close(); } catch (IOException e) { /* ignore it */ } } return result; }
From source file:tkwatch.Utilities.java
/** * Returns the content of a URL as a <code>String</code> instance. This was * used only during development. Retained for completeness. * /*www. ja va 2 s. co m*/ * @param newUrlName * The name of the URL to visit. * @return The contents of the URL as a <code>String</code> or * <code>null</code> if there's a problem. */ public static final String getHtmlContent(String newUrlName) { int urlContentLength = 0; byte[] inBuffer = null; try { URL url = new URL(newUrlName); URLConnection urlConnection = url.openConnection(); urlContentLength = urlConnection.getContentLength(); if (urlContentLength == Constants.UNKNOWN_LENGTH) inBuffer = new byte[Constants.MAX_URL_CONTENT]; else inBuffer = new byte[urlContentLength]; DataInputStream in = new DataInputStream(new BufferedInputStream(urlConnection.getInputStream())); in.readFully(inBuffer); in.close(); System.out.println("Utilities.getHtmlContent() reports inBuffer length is " + inBuffer.length); } catch (MalformedURLException mue) { return null; } catch (IOException ioe) { return null; } catch (Exception e) { e.printStackTrace(); Utilities.errorMessage(e.getMessage()); return null; } String resultString = new String(inBuffer); System.out.println(resultString.toString()); StringBuffer result = new StringBuffer(); for (int i = 0; i < resultString.length(); i++) { char c = resultString.charAt(i); // Only interested in ASCII if (c < Constants.LF || c > Constants.DEL) continue; if (c == '"') { // Assumes the first character won't be " char previous = resultString.charAt(i - 1); // Escape the \ in \" to deal with "\"" if (previous == '\\') result.append('\\'); // Escape double quotes to allow sane handling of Java strings. result.append('\\'); } // Eliminate single quotes to avoid problems storing strings in SQL. // Eliminate | to allow for alternate string delimiter. if (c != '\'' && c != '|') result.append(c); } return result.toString(); }
From source file:org.orbisgis.commons.utils.FileUtils.java
/** * Retrieve the content of the Inputstream as an array of bytes. * @param fis//from w w w .java 2 s . c o m * @return * @throws IOException * @deprecated use {@link org.apache.commons.io.IOUtils#toByteArray(java.io.InputStream) } */ @Deprecated public static byte[] getContent(InputStream fis) throws IOException { DataInputStream dis = null; byte[] buffer; try { dis = new DataInputStream(fis); buffer = new byte[dis.available()]; dis.readFully(buffer); } finally { if (dis != null) { dis.close(); } } return buffer; }
From source file:org.ow2.proactive.authentication.crypto.Credentials.java
/** * Retrieves a private key stored in a local file * <p>/* w ww .ja v a 2 s . co m*/ * Tries to guess the algorithm used for keypair generation which * is not included in the file. According to <a href="http://download.oracle.com/javase/1.5.0/docs/guide/security/CryptoSpec.html#AppA">Java Cryptography Specification</a>, * the algorithm can be only one of "RSA" or "DSA", so we can just try both using the * <code>algorithms</code> param. If the algorithm used to generate the key is neither RSA or DSA * (highly unlikely), this method cannot recreate the private key, but {@link #decrypt(String)} * maybe will. * * @param privPath * path to the private key on the local filesystem * @param algorithms a list of algorithms to try for creating the PK. Recommanded value: * {"RSA","DSA"} * @return the key encapsulated in a regular JCE container * @throws KeyException * the key could not be retrieved or is malformed, or the algorithm used for generation * is not one of <code>algorithms</code> */ public static PrivateKey getPrivateKey(String privPath, String[] algorithms) throws KeyException { PrivateKey privKey = null; for (String algo : algorithms) { try { KeyFactory keyFactory; keyFactory = KeyFactory.getInstance(algo); // recover private key bytes byte[] bytes; try { File pkFile = new File(privPath); DataInputStream pkStream = new DataInputStream(new FileInputStream(pkFile)); bytes = new byte[(int) pkFile.length()]; pkStream.readFully(bytes); pkStream.close(); } catch (Exception e) { throw new KeyException("Could not recover private key (algo=" + algo + ")", e); } // reconstruct private key PKCS8EncodedKeySpec privKeySpec = new PKCS8EncodedKeySpec(bytes); try { privKey = keyFactory.generatePrivate(privKeySpec); } catch (InvalidKeySpecException e) { throw new KeyException("Cannot re-generate private key (algo=" + algo + ")", e); } } catch (Exception e) { } } if (privKey == null) { String str = "Could not generate Private Key (algorithms: "; for (String algo : algorithms) { str += algo + " "; } str += ")"; throw new KeyException(str); } return privKey; }