+/*
+ * Copyright (C) 2007-2012 Mathieu Baudier
+ *
+ * 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.
+ */
package org.argeo.eclipse.ui.specific;
-import java.io.InputStream;
import java.net.URL;
import org.apache.commons.logging.Log;
* Manages the process of forwarding the request to the handler at runtime to
* open the dialog box
*
- * @author bsinou
- *
*/
public class FileHandler {
+ public final static String FORCED_DOWNLOAD_URL_BASE_PROPERTY = "argeo.rap.specific.forcedDownloadUrlBase";
private final static Log log = LogFactory.getLog(FileHandler.class);
IServiceManager manager = RWT.getServiceManager();
IServiceHandler handler = new DownloadServiceHandler(provider);
manager.registerServiceHandler("downloadServiceHandler", handler);
-
}
- public void openFile(String fileName, String fileId, InputStream is) {
+ public void openFile(String fileName, String fileId) {
+
+ // See RAP FAQ:
+ // http://wiki.eclipse.org/RAP/FAQ#How_to_provide_download_link.3F
+ // And forum discussion :
+ // http://www.eclipse.org/forums/index.php?t=msg&th=205487&start=0&S=43d85dacc88b505402420592109c7240
+
try {
- if (log.isDebugEnabled())
- log.debug("URL : " + createFullDownloadUrl(fileName, fileId));
+ if (log.isTraceEnabled())
+ log.trace("URL : " + createFullDownloadUrl(fileName, fileId));
URL url = new URL(createFullDownloadUrl(fileName, fileId));
PlatformUI.getWorkbench().getBrowserSupport()
.createBrowser("DownloadDialog").openURL(url);
-
- /*
- * // New try : must define a service handler for the current file,
- * // register it and redirect the URL to it.
- *
- * // workaround : create a tmp file. String prefix = "", suffix =
- * ""; if (fileName != null) { int ind = fileName.lastIndexOf('.');
- * if (ind > 0) { prefix = fileName.substring(0, ind); suffix =
- * fileName.substring(ind); } }
- *
- * File tmpFile = createTmpFile(prefix, suffix, is);
- * HttpServletResponse response = RWT.getResponse();
- *
- * DownloadHandler dh = new DownloadHandler(tmpFile.getName(),
- * tmpFile, "application/pdf", fileName);
- *
- * log.debug("Got a DH : " + dh.toString());
- *
- * // TODO : should try with that. // String encodedURL =
- * RWT.getResponse().encodeURL(url.toString());
- * response.sendRedirect(dh.getURL());
- */
-
- // final Browser browser = new Browser(parent, SWT.NONE);
- // browser.setText(createDownloadHtml("test.pdf", "Download file"));
-
} catch (Exception e) {
e.printStackTrace();
}
- // // Which file to download?
- // String fileName = RWT.getRequest().getParameter( "filename" );
- // // Get the file content
- // byte[] download = MyDataStore.getByteArrayData( fileName );
- // // Send the file in the response
- // HttpServletResponse response = RWT.getResponse();
- // response.setContentType( "application/octet-stream" );
- // response.setContentLength( download.length );
- // String contentDisposition = "attachment; filename=\"" + fileName +
- // "\"";
- // response.setHeader( "Content-Disposition", contentDisposition );
- // try {
- // response.getOutputStream().write( download );
- // } catch( IOException e1 ) {
- // e1.printStackTrace();
- // }
- //
- //
-
- /**
- * try {
- *
- * // / workaround : create a tmp file. String prefix = "", suffix = "";
- * if (fileName != null) { int ind = fileName.lastIndexOf('.'); if (ind
- * > 0) { prefix = fileName.substring(0, ind); suffix =
- * fileName.substring(ind); } }
- *
- * File tmpFile = createTmpFile(prefix, suffix, is);
- *
- * // Send the file in the response HttpServletResponse response =
- * RWT.getResponse(); byte[] ba = null; ba =
- * FileUtils.readFileToByteArray(tmpFile);
- *
- * long l = tmpFile.length();
- *
- * if (l < Integer.MIN_VALUE || l > Integer.MAX_VALUE) throw new
- * ArgeoException("IllegalArgumentException : " + l +
- * " cannot be cast to int without changing its value.");
- * response.setContentLength((int) l);
- *
- * // response.setContentLength(ba.length);
- *
- * // String contentDisposition = "attachment; filename=\"" + fileName
- * // + "\""; String contentDisposition = "attachment; filename=\"" +
- * fileName + "\"";
- * response.setContentType("application/force-download");
- * response.setHeader("Content-Disposition", contentDisposition);
- * response.setHeader("Content-Transfer-Encoding", "binary");
- * response.setHeader("Pragma", "no-cache");
- * response.setHeader("Cache-Control", "no-cache, must-revalidate");
- *
- * // must-revalidate");
- *
- * if (log.isDebugEnabled()) { log.debug("Header Set "); }
- *
- * // header("Content-Type: application/force-download; name=\"".
- * $localName."\""); // 852 header("Content-Transfer-Encoding: binary");
- * // 853 if($gzip){ // 854 header("Content-Encoding: gzip"); // 855 //
- * If gzip, recompute data size! // 856 $gzippedData = //
- * ($data?gzencode
- * ($filePathOrData,9):gzencode(file_get_contents($filePathOrData), //
- * 9)); // 857 $size = strlen($gzippedData); // 858 } // 859
- * header("Content-Length: ".$size); // 860 if ($isFile && ($size != 0))
- * header("Content-Range: bytes 0-" // . ($size - 1) . "/" . $size .
- * ";"); // 861 //
- * header("Content-Disposition: attachment; filename=\"".
- * $localName."\""); // 862 header("Expires: 0"); // 863
- * header("Cache-Control: no-cache, must-revalidate"); // 864
- * header("Pragma: no-cache");
- *
- * // IOUtils.copy(is, response.getOutputStream());
- * response.getOutputStream().write(ba); //
- * Error.show("In Open File for RAP.");
- *
- *
- *
- *
- * } catch (IOException ioe) {
- *
- * throw new ArgeoException("Cannot copy input stream from file " +
- * fileName + " to HttpServletResponse", ioe); }
- */
-
+ // These lines are useless in the current use case but might be
+ // necessary with new browsers. Stored here for memo
+ // response.setContentType("application/force-download");
+ // response.setHeader("Content-Disposition", contentDisposition);
+ // response.setHeader("Content-Transfer-Encoding", "binary");
+ // response.setHeader("Pragma", "no-cache");
+ // response.setHeader("Cache-Control", "no-cache, must-revalidate");
}
- // private File createTmpFile(String prefix, String suffix, InputStream is)
- // {
- // File tmpFile = null;
- // OutputStream os = null;
- // try {
- // tmpFile = File.createTempFile(prefix, suffix);
- // os = new FileOutputStream(tmpFile);
- // IOUtils.copy(is, os);
- // } catch (IOException e) {
- // throw new ArgeoException("Cannot open file " + prefix + "."
- // + suffix, e);
- // } finally {
- // IOUtils.closeQuietly(os);
- // }
- // return tmpFile;
- // }
-
private String createFullDownloadUrl(String fileName, String fileId) {
StringBuilder url = new StringBuilder();
- url.append(RWT.getRequest().getRequestURL());
+ // in case RAP is proxied we need to specify the actual base URL
+ // TODO find a cleaner way
+ String forcedDownloadUrlBase = System
+ .getProperty(FORCED_DOWNLOAD_URL_BASE_PROPERTY);
+ if (forcedDownloadUrlBase != null)
+ url.append(forcedDownloadUrlBase);
+ else
+ url.append(RWT.getRequest().getRequestURL());
url.append(createParamUrl(fileName, fileId));
return url.toString();
}
projects / lgpl / argeo-commons.git / blobdiff