Examples with MetaInfo org.olat.core.commons.modules.bc.meta.MetaInfo used on opensource projects

Example 91 with MetaInfo

use of org.olat.core.commons.modules.bc.meta.MetaInfo in project openolat by klemens.

the class FileHandler method getThumbnail.

@Override
public VFSLeaf getThumbnail(MediaLight media, Size size) {
    String storagePath = media.getStoragePath();
    VFSLeaf thumbnail = null;
    if (StringHelper.containsNonWhitespace(storagePath)) {
        VFSContainer storageContainer = fileStorage.getMediaContainer(media);
        VFSItem item = storageContainer.resolve(media.getRootFilename());
        if (item instanceof VFSLeaf) {
            VFSLeaf leaf = (VFSLeaf) item;
            if (leaf instanceof MetaTagged) {
                MetaInfo metaInfo = ((MetaTagged) leaf).getMetaInfo();
                thumbnail = metaInfo.getThumbnail(size.getHeight(), size.getWidth(), true);
            }
        }
    }
    return thumbnail;
}

Example 92 with MetaInfo

use of org.olat.core.commons.modules.bc.meta.MetaInfo in project openolat by klemens.

the class ImageHandler method getThumbnail.

@Override
public VFSLeaf getThumbnail(MediaLight media, Size size) {
    String storagePath = media.getStoragePath();
    VFSLeaf thumbnail = null;
    if (StringHelper.containsNonWhitespace(storagePath)) {
        VFSContainer storageContainer = fileStorage.getMediaContainer(media);
        VFSItem item = storageContainer.resolve(media.getRootFilename());
        if (item instanceof VFSLeaf) {
            VFSLeaf leaf = (VFSLeaf) item;
            if (leaf instanceof MetaTagged) {
                MetaInfo metaInfo = ((MetaTagged) leaf).getMetaInfo();
                thumbnail = metaInfo.getThumbnail(size.getHeight(), size.getWidth(), true);
            }
        }
    }
    return thumbnail;
}

Example 93 with MetaInfo

use of org.olat.core.commons.modules.bc.meta.MetaInfo in project openolat by klemens.

the class CourseResourceFolderWebService method attachFileToCourseFolder.

private Response attachFileToCourseFolder(Long courseId, List<PathSegment> path, String filename, InputStream file, HttpServletRequest request) {
    if (!isAuthor(request)) {
        return Response.serverError().status(Status.UNAUTHORIZED).build();
    }
    ICourse course = CoursesWebService.loadCourse(courseId);
    if (course == null) {
        return Response.serverError().status(Status.NOT_FOUND).build();
    }
    VFSContainer container = course.getCourseFolderContainer();
    for (PathSegment segment : path) {
        VFSItem item = container.resolve(segment.getPath());
        if (item instanceof VFSContainer) {
            container = (VFSContainer) item;
        } else if (item == null) {
            // create the folder
            container = container.createChildContainer(segment.getPath());
        }
    }
    VFSItem newFile;
    UserRequest ureq = RestSecurityHelper.getUserRequest(request);
    if (container.resolve(filename) != null) {
        VFSItem existingVFSItem = container.resolve(filename);
        if (existingVFSItem instanceof VFSContainer) {
            // already exists
            return Response.ok().build();
        }
        // check if it's locked
        boolean locked = CoreSpringFactory.getImpl(VFSLockManager.class).isLockedForMe(existingVFSItem, ureq.getIdentity(), ureq.getUserSession().getRoles());
        if (locked) {
            return Response.serverError().status(Status.UNAUTHORIZED).build();
        }
        if (existingVFSItem instanceof Versionable && ((Versionable) existingVFSItem).getVersions().isVersioned()) {
            Versionable existingVersionableItem = (Versionable) existingVFSItem;
            boolean ok = existingVersionableItem.getVersions().addVersion(ureq.getIdentity(), "REST upload", file);
            if (ok) {
                log.audit("");
            }
            newFile = (VFSLeaf) existingVersionableItem;
        } else {
            existingVFSItem.delete();
            newFile = container.createChildLeaf(filename);
            OutputStream out = ((VFSLeaf) newFile).getOutputStream(false);
            FileUtils.copy(file, out);
            FileUtils.closeSafely(out);
            FileUtils.closeSafely(file);
        }
    } else if (file != null) {
        newFile = container.createChildLeaf(filename);
        OutputStream out = ((VFSLeaf) newFile).getOutputStream(false);
        FileUtils.copy(file, out);
        FileUtils.closeSafely(out);
        FileUtils.closeSafely(file);
    } else {
        newFile = container.createChildContainer(filename);
    }
    if (newFile instanceof MetaTagged && ((MetaTagged) newFile).getMetaInfo() != null) {
        MetaInfo infos = ((MetaTagged) newFile).getMetaInfo();
        infos.setAuthor(ureq.getIdentity());
        infos.write();
    }
    return Response.ok().build();
}

Example 94 with MetaInfo

use of org.olat.core.commons.modules.bc.meta.MetaInfo in project openolat by klemens.

the class CmdServeResource method execute.

public Controller execute(FolderComponent folderComponent, UserRequest ureq, WindowControl wControl, Translator translator) {
    VFSSecurityCallback inheritedSecCallback = VFSManager.findInheritedSecurityCallback(folderComponent.getCurrentContainer());
    if (inheritedSecCallback != null && !inheritedSecCallback.canRead())
        throw new RuntimeException("Illegal read attempt: " + folderComponent.getCurrentContainerPath());
    // extract file
    String path = ureq.getModuleURI();
    MediaResource mr = null;
    VFSItem vfsitem = folderComponent.getRootContainer().resolve(path);
    if (vfsitem == null) {
        // double decoding of ++
        vfsitem = FolderCommandHelper.tryDoubleDecoding(ureq, folderComponent);
    }
    if (vfsitem == null) {
        mr = new NotFoundMediaResource();
    } else if (!(vfsitem instanceof VFSLeaf)) {
        mr = new NotFoundMediaResource();
    } else {
        VFSLeaf vfsfile = (VFSLeaf) vfsitem;
        boolean forceDownload = FolderManager.isDownloadForcedFileType(vfsfile.getName());
        if (path.toLowerCase().endsWith(".html") || path.toLowerCase().endsWith(".htm")) {
            // setCurrentURI(path);
            // set the http content-type and the encoding
            // try to load in iso-8859-1
            InputStream is = vfsfile.getInputStream();
            if (is == null) {
                mr = new NotFoundMediaResource();
            } else {
                String page = FileUtils.load(is, DEFAULT_ENCODING);
                // search for the <meta content="text/html; charset=utf-8"
                // http-equiv="Content-Type" /> tag
                // if none found, assume iso-8859-1
                String enc = DEFAULT_ENCODING;
                boolean useLoaded = false;
                // <meta.*charset=([^"]*)"
                Matcher m = PATTERN_ENCTYPE.matcher(page);
                boolean found = m.find();
                if (found) {
                    String htmlcharset = m.group(1);
                    enc = htmlcharset;
                    if (htmlcharset.equals(DEFAULT_ENCODING)) {
                        useLoaded = true;
                    }
                } else {
                    useLoaded = true;
                }
                // set the new encoding to remember for any following .js file loads
                g_encoding = enc;
                if (useLoaded) {
                    StringMediaResource smr = new StringMediaResource();
                    String mimetype = forceDownload ? VFSMediaResource.MIME_TYPE_FORCE_DOWNLOAD : "text/html;charset=" + enc;
                    smr.setContentType(mimetype);
                    smr.setEncoding(enc);
                    smr.setData(page);
                    if (forceDownload) {
                        smr.setDownloadable(true, vfsfile.getName());
                    }
                    mr = smr;
                } else {
                    // found a new charset other than iso-8859-1 -> let it load again
                    // as bytes (so we do not need to convert to string and back
                    // again)
                    VFSMediaResource vmr = new VFSMediaResource(vfsfile);
                    vmr.setEncoding(enc);
                    if (forceDownload) {
                        vmr.setDownloadable(true);
                    }
                    mr = vmr;
                }
            }
        } else if (path.endsWith(".js")) {
            // a javascript library
            VFSMediaResource vmr = new VFSMediaResource(vfsfile);
            // that loads the .js file
            if (g_encoding != null) {
                vmr.setEncoding(g_encoding);
            }
            if (forceDownload) {
                vmr.setDownloadable(true);
            }
            mr = vmr;
        } else if (path.endsWith(".txt")) {
            // text files created in OpenOLAT are utf-8, prefer this encoding
            VFSMediaResource vmr = new VFSMediaResource(vfsfile);
            vmr.setEncoding("utf-8");
            if (forceDownload) {
                vmr.setDownloadable(true);
            }
            mr = vmr;
        } else {
            // binary data: not .html, not .htm, not .js -> treated as is
            VFSMediaResource vmr = new VFSMediaResource(vfsfile);
            if (forceDownload) {
                vmr.setDownloadable(true);
            }
            mr = vmr;
        }
    }
    ThreadLocalUserActivityLogger.log(FolderLoggingAction.BC_FILE_READ, getClass(), CoreLoggingResourceable.wrapBCFile(path));
    ureq.getDispatchResult().setResultingMediaResource(mr);
    // update download counter
    if (vfsitem instanceof MetaTagged) {
        MetaTagged itemWithMeta = (MetaTagged) vfsitem;
        MetaInfo meta = itemWithMeta.getMetaInfo();
        meta.increaseDownloadCount();
        meta.write();
    }
    return null;
}

Example 95 with MetaInfo

use of org.olat.core.commons.modules.bc.meta.MetaInfo in project openolat by klemens.

the class CmdServeThumbnailResource method execute.

@Override
public Controller execute(FolderComponent folderComponent, UserRequest ureq, WindowControl wControl, Translator translator) {
    VFSSecurityCallback inheritedSecCallback = VFSManager.findInheritedSecurityCallback(folderComponent.getCurrentContainer());
    if (inheritedSecCallback != null && !inheritedSecCallback.canRead())
        throw new RuntimeException("Illegal read attempt: " + folderComponent.getCurrentContainerPath());
    // extract file
    String path = ureq.getModuleURI();
    MediaResource mr = null;
    VFSLeaf vfsfile = (VFSLeaf) folderComponent.getRootContainer().resolve(path);
    if (vfsfile == null) {
        // double decoding of ++
        vfsfile = (VFSLeaf) FolderCommandHelper.tryDoubleDecoding(ureq, folderComponent);
    }
    if (vfsfile instanceof MetaTagged) {
        MetaInfo info = ((MetaTagged) vfsfile).getMetaInfo();
        if (info != null && info.isThumbnailAvailable()) {
            VFSLeaf thumbnail = info.getThumbnail(200, 200, false);
            if (thumbnail != null) {
                mr = new VFSMediaResource(thumbnail);
            }
        }
    }
    if (mr == null) {
        mr = new NotFoundMediaResource();
    }
    ureq.getDispatchResult().setResultingMediaResource(mr);
    return null;
}