+ /**
+ * Check if a file exists in the OC server
+ *
+ * TODO replace with ExistenceOperation
+ *
+ * @return 'true' if the file exists; 'false' it doesn't exist
+ * @throws Exception When the existence could not be determined
+ */
+ public boolean existsFile(String path) throws IOException, HttpException {
+ HeadMethod head = new HeadMethod(mUri.toString() + WebdavUtils.encodePath(path));
+ try {
+ head.setFollowRedirects(mFollowRedirects);
+ int status = executeMethod(head);
+ Log_OC.d(TAG, "HEAD to " + path + " finished with HTTP status " + status + ((status != HttpStatus.SC_OK)?"(FAIL)":""));
+ exhaustResponse(head.getResponseBodyAsStream());
+ return (status == HttpStatus.SC_OK);
+
+ } finally {
+ head.releaseConnection(); // let the connection available for other methods
+ }
+ }
+
+ /**
+ * Requests the received method with the received timeout (milliseconds).
+ *
+ * Executes the method through the inherited HttpClient.executedMethod(method).
+ *
+ * Sets the socket and connection timeouts only for the method received.
+ *
+ * The timeouts are both in milliseconds; 0 means 'infinite'; < 0 means 'do not change the default'
+ *
+ * @param method HTTP method request.
+ * @param readTimeout Timeout to set for data reception
+ * @param conntionTimout Timeout to set for connection establishment
+ */
+ public int executeMethod(HttpMethodBase method, int readTimeout, int connectionTimeout) throws HttpException, IOException {
+ int oldSoTimeout = getParams().getSoTimeout();
+ int oldConnectionTimeout = getHttpConnectionManager().getParams().getConnectionTimeout();
+ try {
+ if (readTimeout >= 0) {
+ method.getParams().setSoTimeout(readTimeout); // this should be enough...
+ getParams().setSoTimeout(readTimeout); // ... but this looks like necessary for HTTPS
+ }
+ if (connectionTimeout >= 0) {
+ getHttpConnectionManager().getParams().setConnectionTimeout(connectionTimeout);
+ }
+ method.setFollowRedirects(mFollowRedirects);
+ return executeMethod(method);
+ } finally {
+ getParams().setSoTimeout(oldSoTimeout);
+ getHttpConnectionManager().getParams().setConnectionTimeout(oldConnectionTimeout);
+ }
+ }
+
+ /**
+ * Exhausts a not interesting HTTP response. Encouraged by HttpClient documentation.
+ *
+ * @param responseBodyAsStream InputStream with the HTTP response to exhaust.
+ */
+ public void exhaustResponse(InputStream responseBodyAsStream) {
+ if (responseBodyAsStream != null) {
+ try {
+ while (responseBodyAsStream.read(sExhaustBuffer) >= 0);
+ responseBodyAsStream.close();
+
+ } catch (IOException io) {
+ Log_OC.e(TAG, "Unexpected exception while exhausting not interesting HTTP response; will be IGNORED", io);
+ }
+ }
+ }
projects / pub / Android / ownCloud.git / blobdiff