Search in sources :

Example 1 with AuthOpException

use of digilib.auth.AuthOpException in project digilib by robcast.

the class ScalerNoThread method processRequest.

/**
 * Service this request using the response.
 *
 * @param request
 * @param response
 * @throws ServletException
 */
public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException {
    if (dlConfig == null) {
        logger.error("ERROR: No Configuration!");
        throw new ServletException("NO VALID digilib CONFIGURATION!");
    }
    accountlog.debug("request: " + request.getQueryString());
    logger.debug("request: " + request.getQueryString());
    long startTime = System.currentTimeMillis();
    // parse request
    DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig);
    // type of error reporting
    ErrMsg errMsgType = ErrMsg.IMAGE;
    if (dlRequest.hasOption(DigilibOption.errtxt)) {
        errMsgType = ErrMsg.TEXT;
    } else if (dlRequest.hasOption(DigilibOption.errcode)) {
        errMsgType = ErrMsg.CODE;
    }
    try {
        // extract the job information
        ImageJobDescription jobTicket = ImageJobDescription.getInstance(dlRequest, dlConfig);
        /*
             * check if we can fast-track without scaling
             */
        ImageInput fileToLoad = (ImageInput) jobTicket.getInput();
        // check permissions
        if (useAuthorization) {
            // is the current request/user authorized?
            if (!authzOp.isAuthorized(dlRequest)) {
                // send deny answer and abort
                throw new AuthOpException();
            }
        }
        // if requested, send image as a file
        if (sendFileAllowed && jobTicket.getSendAsFile()) {
            String mt = null;
            if (jobTicket.hasOption(DigilibOption.rawfile)) {
                mt = "application/octet-stream";
            }
            logger.debug("Sending RAW File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), mt, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        // it
        if (!jobTicket.isTransformRequired()) {
            logger.debug("Sending File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), null, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        // create job
        ImageWorker job = new ImageWorker(dlConfig, jobTicket);
        // get result immediately
        DocuImage img = job.call();
        // forced destination image type
        String mt = null;
        if (jobTicket.hasOption(DigilibOption.jpg)) {
            mt = "image/jpeg";
        } else if (jobTicket.hasOption(DigilibOption.png)) {
            mt = "image/png";
        }
        // send image
        ServletOps.sendImage(img, mt, response, logger);
        logger.debug("Job Processing Time: " + (System.currentTimeMillis() - startTime) + "ms");
    } catch (ImageOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.IMAGE, null, response);
    } catch (IOException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.FILE, null, response);
    } catch (AuthOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.AUTH, null, response);
    }
}
Also used : ServletException(javax.servlet.ServletException) ImageOpException(digilib.image.ImageOpException) DigilibServletRequest(digilib.conf.DigilibServletRequest) ImageJobDescription(digilib.image.ImageJobDescription) ImageInput(digilib.io.ImageInput) AuthOpException(digilib.auth.AuthOpException) ImageWorker(digilib.image.ImageWorker) DocuImage(digilib.image.DocuImage) IOException(java.io.IOException)

Example 2 with AuthOpException

use of digilib.auth.AuthOpException in project digilib by robcast.

the class Manifester method processRequest.

protected void processRequest(HttpServletRequest request, HttpServletResponse response) {
    try {
        // create DigilibRequest from ServletRequest, omit IIIF Image API parsing
        DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig, EnumSet.of(ParsingOption.omitIiifImageApi));
        // get list of IIIF parameters
        @SuppressWarnings("unchecked") List<String> iiifParams = (List<String>) dlRequest.getValue("request.iiif.elements");
        if (iiifParams == null) {
            logger.error("Invalid IIIF request.");
            response.sendError(HttpServletResponse.SC_BAD_REQUEST, "Invalid IIIF request.");
            return;
        }
        // get identifier (first parameter)
        // allow empty identifier for image root dir
        String identifier = "";
        if (iiifParams.size() > 0) {
            identifier = iiifParams.get(0);
        }
        // decode identifier to file path
        dlRequest.setValueFromString("fn", dlRequest.decodeIiifIdentifier(identifier));
        // get directory path
        String dlFn = dlRequest.getFilePath();
        // get information about the directory
        DocuDirectory dlDir = dirCache.getDirectory(dlFn);
        if (dlDir == null) {
            logger.error("Directory for manifest not found: " + dlFn);
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        // check for existing manifest file
        File mfFile = new File(dlDir.getDir(), "manifest.json");
        // check for image files
        if ((dlDir.size() == 0) && !mfFile.canRead()) {
            logger.debug("Directory has no files: " + dlFn);
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        ManifestParams params = new ManifestParams();
        /*
			 * set CORS header ACAO "*" for info response as per IIIF spec
			 */
        if (corsForInfoRequests) {
            String origin = request.getHeader("Origin");
            if (origin != null) {
                response.setHeader("Access-Control-Allow-Origin", "*");
            }
        }
        /*
             * check permissions
             */
        if (useAuthorization) {
            // is the current request/user authorized?
            if (!authzOp.isAuthorized(dlRequest)) {
                // send deny answer and abort
                throw new AuthOpException("Access denied!");
            }
        }
        // use JSON-LD content type only when asked
        String accept = request.getHeader("Accept");
        if (accept != null && accept.contains("application/ld+json")) {
            response.setContentType("application/ld+json");
        } else {
            response.setContentType("application/json");
        }
        if (mfFile.canRead()) {
            // send manifest file
            ServletOps.sendFile(mfFile, "", "", response);
            return;
        }
        // check for manifest-meta.json file with additional metadata
        File mfMetaFile = new File(dlDir.getDir(), "manifest-meta.json");
        if (mfMetaFile.canRead()) {
            params.mfMetaFile = mfMetaFile;
        }
        /*
			 * configure base URLs for manifest
			 */
        params.imgApiUrl = dlConfig.getAsString("iiif-image-base-url");
        String manifestBaseUrl = dlConfig.getAsString("iiif-manifest-base-url");
        if ("".equals(params.imgApiUrl) || "".equals(manifestBaseUrl)) {
            // try to figure out base URLs
            String servletBaseUrl = dlConfig.getAsString("webapp-base-url");
            if ("".equals(servletBaseUrl)) {
                String url = request.getRequestURL().toString();
                // get base URL for web application by last occurrence of Servlet path
                int srvPathLen = url.lastIndexOf(request.getServletPath());
                servletBaseUrl = url.substring(0, srvPathLen);
            }
            // manifest base URL
            manifestBaseUrl = servletBaseUrl + request.getServletPath() + "/" + dlConfig.getAsString("iiif-prefix");
            // Image API base URL
            params.imgApiUrl = servletBaseUrl + "/" + this.scalerServletPath + "/" + dlConfig.getAsString("iiif-prefix");
        }
        // full manifest URL with identifier
        params.manifestUrl = manifestBaseUrl + "/" + identifier;
        params.identifier = identifier;
        params.docuDir = dlDir;
        /*
			 * start json representation
			 */
        ServletOutputStream out = response.getOutputStream();
        JsonGenerator manifest = Json.createGenerator(out).writeStartObject();
        /*
			 * manifest metadata
			 */
        writeManifestMeta(manifest, dlFn, params);
        /*
			 * sequences
			 */
        writeSequences(manifest, params);
        // manifest
        manifest.writeEnd();
        manifest.close();
    } catch (IOException e) {
        logger.error("ERROR sending manifest: ", e);
    } catch (ImageOpException e) {
        logger.error("ERROR sending manifest: ", e);
    } catch (AuthOpException e) {
        logger.debug("Permission denied.");
        try {
            response.sendError(HttpServletResponse.SC_FORBIDDEN);
        } catch (IOException e1) {
            logger.error("Error sending error: ", e);
        }
    }
}
Also used : ImageOpException(digilib.image.ImageOpException) DigilibServletRequest(digilib.conf.DigilibServletRequest) ServletOutputStream(javax.servlet.ServletOutputStream) IOException(java.io.IOException) AuthOpException(digilib.auth.AuthOpException) DocuDirectory(digilib.io.DocuDirectory) JsonGenerator(javax.json.stream.JsonGenerator) List(java.util.List) File(java.io.File)

Example 3 with AuthOpException

use of digilib.auth.AuthOpException in project digilib by robcast.

the class Scaler method processRequest.

/**
 * Service this request using the response.
 *
 * @param request
 * @param response
 * @throws ServletException
 */
public void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException {
    if (dlConfig == null) {
        logger.error("ERROR: No Configuration!");
        throw new ServletException("NO VALID digilib CONFIGURATION!");
    }
    accountlog.debug("request: " + request.getQueryString());
    logger.debug("request: " + request.getQueryString());
    // logger.debug("processRequest response committed=" + response.isCommitted());
    if (response.isCommitted()) {
        logger.error("Crap: response committed before we got a chance!");
    }
    final long startTime = System.currentTimeMillis();
    // parse request
    DigilibServletRequest dlRequest = new DigilibServletRequest(request, dlConfig);
    // type of error reporting
    ErrMsg errMsgType = defaultErrMsgType;
    if (dlRequest.hasOption(DigilibOption.errimg)) {
        errMsgType = ErrMsg.IMAGE;
    } else if (dlRequest.hasOption(DigilibOption.errtxt)) {
        errMsgType = ErrMsg.TEXT;
    } else if (dlRequest.hasOption(DigilibOption.errcode)) {
        errMsgType = ErrMsg.CODE;
    }
    try {
        // extract the job information
        final ImageJobDescription jobTicket = ImageJobDescription.getInstance(dlRequest, dlConfig);
        // handle the IIIF info-request
        if (dlRequest.hasOption(DigilibOption.info)) {
            ServletOps.sendIiifInfo(dlRequest, response, logger);
            return;
        }
        if (dlRequest.hasOption(DigilibOption.redirect_info)) {
            StringBuffer url = request.getRequestURL();
            if (url.toString().endsWith("/")) {
                url.append("info.json");
            } else {
                url.append("/info.json");
            }
            // TODO: the redirect should have code 303
            response.sendRedirect(url.toString());
            return;
        }
        // error out if request was bad
        if (dlRequest.errorMessage != null) {
            digilibError(errMsgType, Error.UNKNOWN, dlRequest.errorMessage, response);
            return;
        }
        /*
             * check permissions
             */
        if (useAuthorization) {
            // is the current request/user authorized?
            if (!authzOp.isAuthorized(dlRequest)) {
                // send deny answer and abort
                throw new AuthOpException("Access denied!");
            }
        }
        /*
             * get the input file
             */
        ImageInput fileToLoad = jobTicket.getInput();
        /*
             * if requested, send image as a file
             */
        if (sendFileAllowed && jobTicket.getSendAsFile()) {
            String mt = null;
            if (jobTicket.hasOption(DigilibOption.rawfile)) {
                // mo=rawfile sends as octet-stream
                mt = "application/octet-stream";
            }
            logger.debug("Sending RAW File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), mt, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        /*
             * send the image if it's possible without having to transform it
             */
        if (!jobTicket.isTransformRequired()) {
            logger.debug("Sending File as is.");
            ServletOps.sendFile(fileToLoad.getFile(), null, null, response, logger);
            logger.info("Done in " + (System.currentTimeMillis() - startTime) + "ms");
            return;
        }
        /*
             * check load of workers
             */
        if (imageJobCenter.isBusy()) {
            logger.error("Servlet overloaded!");
            response.sendError(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
            return;
        }
        /*
             * dispatch worker job to be done asynchronously
             */
        AsyncContext asyncCtx = request.startAsync();
        // create job
        AsyncServletWorker job = new AsyncServletWorker(dlConfig, jobTicket, asyncCtx, errMsgType, startTime);
        // AsyncServletWorker is its own AsyncListener
        asyncCtx.addListener(job);
        // submit job
        imageJobCenter.submit(job);
    // we're done for now
    } catch (ImageOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.IMAGE, null, response);
    } catch (IOException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.FILE, null, response);
    } catch (AuthOpException e) {
        logger.error(e.getClass() + ": " + e.getMessage());
        digilibError(errMsgType, Error.AUTH, null, response);
    } catch (Exception e) {
        logger.error("Other Exception: ", e);
    // TODO: should we rethrow or swallow?
    // throw new ServletException(e);
    }
}
Also used : ImageOpException(digilib.image.ImageOpException) DigilibServletRequest(digilib.conf.DigilibServletRequest) ImageJobDescription(digilib.image.ImageJobDescription) AsyncContext(javax.servlet.AsyncContext) IOException(java.io.IOException) ImageOpException(digilib.image.ImageOpException) ServletException(javax.servlet.ServletException) IOException(java.io.IOException) AuthOpException(digilib.auth.AuthOpException) ServletException(javax.servlet.ServletException) AuthOpException(digilib.auth.AuthOpException) ImageInput(digilib.io.ImageInput)

Aggregations

AuthOpException (digilib.auth.AuthOpException)3 DigilibServletRequest (digilib.conf.DigilibServletRequest)3 ImageOpException (digilib.image.ImageOpException)3 IOException (java.io.IOException)3 ImageJobDescription (digilib.image.ImageJobDescription)2 ImageInput (digilib.io.ImageInput)2 ServletException (javax.servlet.ServletException)2 DocuImage (digilib.image.DocuImage)1 ImageWorker (digilib.image.ImageWorker)1 DocuDirectory (digilib.io.DocuDirectory)1 File (java.io.File)1 List (java.util.List)1 JsonGenerator (javax.json.stream.JsonGenerator)1 AsyncContext (javax.servlet.AsyncContext)1 ServletOutputStream (javax.servlet.ServletOutputStream)1