diff options
Diffstat (limited to 'pdf-as-web/src/main/java')
| -rw-r--r-- | pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/config/WebConfiguration.java | 12 | ||||
| -rw-r--r-- | pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PlaceholderGeneratorServlet.java | 174 |
2 files changed, 186 insertions, 0 deletions
diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/config/WebConfiguration.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/config/WebConfiguration.java index 0ad96b04..4ef320a1 100644 --- a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/config/WebConfiguration.java +++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/config/WebConfiguration.java @@ -93,6 +93,8 @@ public class WebConfiguration implements IConfigurationConstants { public static final String UPLOAD_MAX_FILESIZE = "web.upload.filesizeMax"; public static final String UPLOAD_MAX_REQUESTSIZE = "web.upload.RequestsizeMax"; + public static final String PLACEHOLDER_GENERATOR_ENABLED = "qr.placeholder.generator.enabled"; + private static final int THRESHOLD_SIZE = 1024 * 1024 * 3; // 3MB private static final int MAX_FILE_SIZE = 1024 * 1024 * 40; // 40MB private static final int MAX_REQUEST_SIZE = 1024 * 1024 * 50; // 50MB @@ -308,6 +310,16 @@ public class WebConfiguration implements IConfigurationConstants { return false; } + public static boolean isQRPlaceholderGenerator() { + String value = properties.getProperty(PLACEHOLDER_GENERATOR_ENABLED); + if (value != null) { + if (value.equals("true")) { + return true; + } + } + return false; + } + public static String getMoaURL(String keyIdentifier) { return properties.getProperty(MOA_LIST + "." + keyIdentifier + "." + MOA_URL); } diff --git a/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PlaceholderGeneratorServlet.java b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PlaceholderGeneratorServlet.java new file mode 100644 index 00000000..bd64c75d --- /dev/null +++ b/pdf-as-web/src/main/java/at/gv/egiz/pdfas/web/servlets/PlaceholderGeneratorServlet.java @@ -0,0 +1,174 @@ +package at.gv.egiz.pdfas.web.servlets; + +import java.awt.Color; +import java.awt.Font; +import java.awt.Graphics; +import java.awt.image.BufferedImage; +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStream; + +import javax.imageio.ImageIO; +import javax.servlet.ServletException; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import org.apache.commons.io.IOUtils; +import org.apache.http.HttpStatus; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.google.zxing.WriterException; + +import at.gv.egiz.pdfas.lib.impl.placeholder.PlaceholderExtractorConstants; +import at.gv.egiz.pdfas.lib.impl.placeholder.SignaturePlaceholderData; +import at.gv.egiz.pdfas.web.config.WebConfiguration; +import at.gv.egiz.pdfas.web.helper.QRCodeGenerator; + +public class PlaceholderGeneratorServlet extends HttpServlet implements PlaceholderExtractorConstants { + + /** + * + */ + private static final long serialVersionUID = -5854130802422496977L; + + public static final String PARAM_ID = "id"; + public static final String PARAM_PROFILE = "profile"; + + private static final Logger logger = LoggerFactory + .getLogger(ExternSignServlet.class); + + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + this.doProcess(req, resp); + } + + @Override + protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + this.doProcess(req, resp); + } + + protected void doProcess(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + + if(!WebConfiguration.isQRPlaceholderGenerator()) { + logger.info("QR Placeholder is disabled by configuration (see {})" + WebConfiguration.PLACEHOLDER_GENERATOR_ENABLED); + resp.sendError(HttpStatus.SC_NOT_FOUND); + return; + } + + String baseImage = "/img/PLATZHALTER-SIG.png"; + + String id = req.getParameter(PARAM_ID); + String profile = req.getParameter(PARAM_PROFILE); + + String buildString = QR_PLACEHOLDER_IDENTIFIER; + + String filename = "placeholder"; + + if(id != null && !id.isEmpty()) { + id = id.replaceAll("[^a-zA-Z0-9]", "_"); + buildString = buildString + ";" + SignaturePlaceholderData.ID_KEY + "=" + id; + filename = filename + "_" + id; + } + + if(profile != null && !profile.isEmpty()) { + buildString = buildString + ";" + SignaturePlaceholderData.PROFILE_KEY + "=" + profile; + + if(profile.endsWith("_EN")) { + baseImage = "/img/PLACEHOLDER-SIG_EN.png"; + filename = filename + "_en"; + } else { + filename = filename + "_de"; + } + } + + filename = filename + ".png"; + + logger.info("generating qr placeholder for '{}' as {}", buildString, filename); + + //if(id != null || profile != null) { + // We need to generate the image + + InputStream is = this.getClass().getClassLoader().getResourceAsStream(baseImage); + if(is == null) { + logger.warn("Cannot open resource {} to generator QR placeholder", baseImage); + resp.sendError(HttpStatus.SC_NOT_FOUND); + return; + } + + ByteArrayOutputStream baos = new ByteArrayOutputStream(); + + // generate QR code + try { + QRCodeGenerator.generateQRCode(buildString, baos, 90); + } catch (WriterException e) { + logger.warn("Failed to generate QR Code for placeholder generationg", e); + resp.sendError(HttpStatus.SC_INTERNAL_SERVER_ERROR); + return; + } + + baos.close(); + + BufferedImage base = ImageIO.read(is); + BufferedImage qr = ImageIO.read(new ByteArrayInputStream(baos.toByteArray())); + + BufferedImage off_Image = + new BufferedImage(250, 98, + BufferedImage.TYPE_INT_ARGB); + + Graphics g = off_Image.getGraphics(); + g.drawImage(base, 0, 0, 250, 98, 0, 0, base.getWidth(), base.getHeight(), null); + g.drawImage(qr, 4, 4, 94, 94, 0, 0, qr.getWidth(), qr.getHeight(), null); + g.setColor(Color.WHITE); + g.fillRect(94, 4, 152, 90); + //g.(x, y, width, height); + Font writeFont = new Font(Font.SANS_SERIF, Font.BOLD, 14); + g.setFont(writeFont); + g.setColor(Color.BLACK); + + if(profile != null && profile.endsWith("_EN")) { + g.drawString("placeholder for", 102, 13+18); + g.drawString("the electronic", 102, 13+18 + 18); + g.drawString("signature", 102, 13+18 + 18 + 18); + } else { + g.drawString("Platzhalter für", 102, 13+18); + g.drawString("die elektronische", 102, 13+18 + 18); + g.drawString("Signatur", 102, 13+18 + 18 + 18); + } + if(id != null && !id.isEmpty()) { + + Font nrFont = new Font(Font.SANS_SERIF, Font.BOLD | Font.ITALIC, 14); + g.setFont(nrFont); + + g.drawString("NR: " + id, 102, 13+18 + 18 + 18 + 18); + } + + logger.info("serving qr placeholder for '{}'", buildString); + resp.setContentType("image/png"); + resp.setHeader("Cache-Control", "private, no-store, no-cache, must-revalidate"); + resp.setHeader("Pragma", "no-cache"); + resp.setHeader ("Content-Disposition", "attachment; filename=\""+filename+"\""); + + ImageIO.write(off_Image, "PNG", resp.getOutputStream()); + return; + /*} else { + // just use the template + InputStream is = this.getClass().getClassLoader().getResourceAsStream(baseImage); + if(is == null) { + logger.warn("Cannot open resource {} to generator QR placeholder", baseImage); + resp.sendError(HttpStatus.SC_NOT_FOUND); + return; + } else { + logger.info("serving default qr placeholder"); + resp.setContentType("image/png"); + resp.setHeader("Cache-Control", "private, no-store, no-cache, must-revalidate"); + resp.setHeader("Pragma", "no-cache"); + IOUtils.copy(is, resp.getOutputStream()); + return; + } + }*/ + } + +} |