Examples with MediaResource org.olat.core.gui.media.MediaResource used on opensource projects

Example 86 with MediaResource

use of org.olat.core.gui.media.MediaResource in project OpenOLAT by OpenOLAT.

the class IFrameDeliveryMapper method deliverFile.

protected MediaResource deliverFile(HttpServletRequest httpRequest, String path, boolean isPopUp) {
    MediaResource mr;
    VFSLeaf vfsLeaf = null;
    VFSItem vfsItem = null;
    // if directory gets renamed root becomes null
    if (rootDir == null) {
        return new NotFoundMediaResource();
    } else {
        vfsItem = rootDir.resolve(path);
    }
    // only files are allowed, but somehow it happened that folders showed up here
    if (vfsItem instanceof VFSLeaf) {
        vfsLeaf = (VFSLeaf) rootDir.resolve(path);
    } else {
        mr = new NotFoundMediaResource();
    }
    if (vfsLeaf == null) {
        mr = new NotFoundMediaResource();
    } else {
        // and accept positions of this string at length-3 or length-4
        if (path.toLowerCase().lastIndexOf(FILE_SUFFIX_HTM) >= (path.length() - 4)) {
            // set the http content-type and the encoding
            Page page = loadPageWithGuess(vfsLeaf);
            String pageEncoding = page.getEncoding();
            if (page.isUseLoadedPageString()) {
                mr = prepareMediaResource(httpRequest, page.getPage(), pageEncoding, page.getContentType(), isPopUp);
            } else {
                // found a new charset other than iso-8859-1, load string with proper encoding
                String content = FileUtils.load(vfsLeaf.getInputStream(), pageEncoding);
                mr = prepareMediaResource(httpRequest, content, pageEncoding, page.getContentType(), isPopUp);
            }
            if (contentEncoding == null) {
                contentEncoding = pageEncoding;
            }
        } else if (path.endsWith(FILE_SUFFIX_JS)) {
            // a javascript library
            VFSMediaResource vmr = new VFSMediaResource(vfsLeaf);
            // that loads the .js file
            if (jsEncoding != null) {
                vmr.setEncoding(jsEncoding);
            } else if (contentEncoding != null) {
                vmr.setEncoding(contentEncoding);
            }
            mr = vmr;
        } else {
            // binary data: not .html, not .htm, not .js -> treated as is
            VFSMediaResource vmr = new VFSMediaResource(vfsLeaf);
            String filename = vfsLeaf.getName();
            // This is to prevent the login prompt in Excel, Word and PowerPoint
            if (filename.endsWith(".xlsx") || filename.endsWith(".pptx") || filename.endsWith(".docx")) {
                vmr.setDownloadable(true);
            }
            mr = vmr;
        }
    }
    return mr;
}

Example 87 with MediaResource

use of org.olat.core.gui.media.MediaResource in project OpenOLAT by OpenOLAT.

the class MediaResourceMapper method handle.

public MediaResource handle(String relPath, HttpServletRequest request) {
    if (mediaResource == null)
        throw new AssertException("mr already served, relPath =" + relPath + ",");
    MediaResource r = mediaResource;
    mediaResource = null;
    return r;
}

Example 88 with MediaResource

use of org.olat.core.gui.media.MediaResource in project OpenOLAT by OpenOLAT.

the class CertificateDispatcher method execute.

@Override
public void execute(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    String uriPrefix = DispatcherModule.getLegacyUriPrefix(request);
    final String origUri = request.getRequestURI();
    String uuid = origUri.substring(uriPrefix.length());
    int indexSuffix = uuid.indexOf('/');
    if (indexSuffix > 0) {
        uuid = uuid.substring(0, indexSuffix);
    }
    MediaResource resource;
    Certificate certificate = certificatesManager.getCertificateByUuid(uuid);
    if (certificate == null) {
        resource = new NotFoundMediaResource();
    } else {
        VFSLeaf certificateFile = certificatesManager.getCertificateLeaf(certificate);
        resource = new VFSMediaResource(certificateFile);
    }
    ServletUtil.serveResource(request, response, resource);
}

Example 89 with MediaResource

use of org.olat.core.gui.media.MediaResource in project OpenOLAT by OpenOLAT.

the class QTI21AssessmentTestStatisticsController method doDownloadRawData.

private void doDownloadRawData(UserRequest ureq) {
    String label;
    if (courseNode == null) {
        label = StringHelper.transformDisplayNameToFileSystemName(resourceResult.getTestEntry().getDisplayname());
    } else {
        label = courseNode.getType() + "_" + StringHelper.transformDisplayNameToFileSystemName(courseNode.getShortName());
    }
    label += "_" + Formatter.formatDatetimeFilesystemSave(new Date()) + ".xlsx";
    MediaResource resource = new QTI21StatisticsResource(resourceResult, label, getLocale());
    ureq.getDispatchResult().setResultingMediaResource(resource);
}

Example 90 with MediaResource

use of org.olat.core.gui.media.MediaResource in project OpenOLAT by OpenOLAT.

the class HtmlStaticPageComponent method getAsyncMediaResource.

/**
 * @see org.olat.core.gui.media.AsyncMediaResponsible#getAsyncMediaResource(org.olat.core.gui.UserRequest)
 */
public MediaResource getAsyncMediaResource(UserRequest ureq) {
    // is the path to the desired resource (put together by the webbrowser by
    // combining latesturl and relative link)
    String moduleURI = ureq.getModuleURI();
    MediaResource mr = null;
    if (moduleURI != null) {
        // 1. check for an olat command (special link to indicate a command)
        if (moduleURI.startsWith(OLAT_CMD_PREFIX)) {
            String cmdAndSub = moduleURI.substring(OLAT_CMD_PREFIX.length());
            int slpos = cmdAndSub.indexOf('/');
            if (slpos != -1) {
                String cmd = cmdAndSub.substring(0, slpos);
                String subcmd = cmdAndSub.substring(slpos + 1);
                OlatCmdEvent aev = new OlatCmdEvent(cmd, subcmd);
                fireEvent(ureq, aev);
                // Mediaresourse)
                if (aev.isAccepted())
                    return null;
            }
        // else ignore (syntax error in command
        }
        // make sure moduleURI does not contain ".." or such (hack attempt)
        // -> ok, userrequest class asserts this.
        VFSItem sourceItem = rootContainer.resolve(moduleURI);
        // return 404 if the requested file does not exist
        if (sourceItem == null || (sourceItem instanceof VFSContainer)) {
            return new NotFoundMediaResource();
        }
        // we know the file exists.
        boolean checkRegular = true;
        // check for special case: render the follwing link in a new (server) window and all following clicks as well
        if ((ureq.getParameter("olatsite") != null) || ((moduleURI.endsWith(".html") || moduleURI.endsWith(".htm")) && (ureq.getParameter("olatraw") != null))) {
            log.debug("moduleURI=" + moduleURI);
            ExternalSiteEvent ese = new ExternalSiteEvent(moduleURI);
            fireEvent(ureq, ese);
            if (ese.isAccepted()) {
                mr = ese.getResultingMediaResource();
                log.debug("ExternalSiteEvent is accepted");
                checkRegular = false;
            } else {
                // it is a html page with olatraw parameter => redirect to mapper
                Mapper mapper = new HtmlStaticMapper(rootContainer);
                // NOTE: do not deregister this mapper, since it could be used a lot later (since it is opened in a new browser window)
                // Register mapper as cacheable
                String mapperID = VFSManager.getRealPath(rootContainer);
                if (mapperID == null) {
                    // Can't cache mapper, no cacheable context available
                    amapPath = CoreSpringFactory.getImpl(MapperService.class).register(ureq.getUserSession(), mapper);
                } else {
                    // Add classname to the file path to remove conflicts with other
                    // usages of the same file path
                    mapperID = this.getClass().getSimpleName() + ":" + mapperID;
                    amapPath = CoreSpringFactory.getImpl(MapperService.class).register(ureq.getUserSession(), mapperID, mapper);
                }
                String path = amapPath.getUrl() + "/" + moduleURI;
                ese.setResultingMediaResource(new RedirectMediaResource(path));
                if (log.isDebug())
                    log.debug("RedirectMediaResource=" + path);
                ese.accept();
                mr = ese.getResultingMediaResource();
                checkRegular = false;
            }
        }
        if (checkRegular) {
            // mediaresource (raw inputstream)
            if ((moduleURI.endsWith(".html") || moduleURI.endsWith(".htm")) && (ureq.getParameter("olatraw") == null)) {
                // we remember what to render inline later and return null to indicate
                // inline rendering
                currentURI = moduleURI;
                getFileContent((VFSLeaf) sourceItem);
                fireEvent(ureq, new NewInlineUriEvent(currentURI));
            } else {
                // it is indeed an image or such -> serve it
                mr = new VFSMediaResource((VFSLeaf) sourceItem);
            }
        }
    }
    // -> do a normal inline rendering (reload)
    return mr;
}