1 | <!DOCTYPE html>
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2 | <html>
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3 | <head>
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4 | </head>
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5 |
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6 | <body>
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7 |
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8 | <div style="display: none;">
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9 |
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10 | <script>
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11 | // Set up a fallback position in case this page is accessed outside of a JSP context
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12 | // (i.e., the JSP blocks aren't executed)
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13 | var message = "Failed to execute JSP code blocks";
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14 | var exit_val = 404; // not currently used
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15 |
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16 | </script>
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17 |
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18 | <%@ page import="java.io.*,java.util.*,java.awt.image.*,javax.imageio.*,javax.xml.bind.DatatypeConverter" %>
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19 |
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20 | <%!
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21 |
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22 | void writeImageDataToFile(File image_file, String image_data)
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23 | {
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24 | if (image_data == null) {
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25 | // Some fake data (a small arrow icon) useful for testing purposes when image_data is not supplied in the URL
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26 | image_data = "iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABL0lEQVR42q2TLW/DMBCG+1OKworCzMzMAsMCQw0zaGgaahwaXKmsoxuaVD66X3G995Jzk/Rj0rSTXsW+j8cXf+x2/22X7wu1Y0cmVlQEK8IYPsReFiOpjI7CZyFK50gDKx4DtUObQU+LXV9zcifFMHz7o5/ViZBzB0FrsvLoGeDp9HUiNUDgWwq5q98BsUo1+aERLQEK0Zhq1QWIDQNUW4BCNN7Ne7UCuHDT+DHSI3v/eZM4ADidDNjzpOxM1iMAutJ4kzztlwDQDqHM2gIw15jlbmveg1UH2BDbV3xEk5YAjNXvUiWbbbdHiSM5RDsHbQbga6IVwQ8AVkfu3a2U69tP7aEQKqPhYkM2wV9LDDkvbyPoLk3JLV8sCGP4EHtavH1MRbT5MRVz4a+P6S92BSaqyCgd7GKfAAAAAElFTkSuQmCC";
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27 | }
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28 | else {
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29 | // skip over 'data:image/png;base64'
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30 | image_data = image_data.replace("data:image/png;base64","");
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31 | }
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32 |
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33 | byte[] image_bytes = DatatypeConverter.parseBase64Binary(image_data);
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34 |
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35 | try {
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36 | FileOutputStream fos = new FileOutputStream(image_file);
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37 | fos.write(image_bytes);
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38 | fos.close();
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39 | }
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40 | catch (Exception e) {
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41 | e.printStackTrace();
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42 | }
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43 | }
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44 |
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45 | %>
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46 |
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47 |
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48 | <%
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49 | String doc_base = getServletContext().getRealPath("/");
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50 | File render_dir = new File(doc_base,"render-3d");
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51 | File render_images_dir = new File(render_dir,"images");
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52 | File flag_file = new File(render_images_dir,"flag.png");
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53 |
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54 | String image_data = request.getParameter("imageData");
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55 |
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56 | String image_filename = request.getParameter("imageFilename");
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57 | if (image_filename == null) {
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58 | image_filename = "flag.png";
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59 | }
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60 | File full_image_file = new File(render_images_dir,image_filename);
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61 |
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62 |
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63 | writeImageDataToFile(full_image_file,image_data);
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64 |
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65 | out.println("<script>");
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66 | out.println("message = \"Image File Saved: <docBase>/render-3d/images/" + image_filename + "\";");
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67 | out.println("</script>");
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68 |
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69 | %>
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70 |
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71 | </div>
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72 |
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73 | <script>
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74 |
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75 | document.write("<div>" + message + "</div>\n");
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76 |
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77 | </script>
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78 |
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79 | </body>
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80 |
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81 | </html>
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