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1
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2 package nabble.view.web.user;
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3
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4 import fschmidt.util.java.HtmlUtils;
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5 import fschmidt.util.java.ImageUtils;
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6 import fschmidt.util.servlet.JtpContext;
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7 import nabble.model.FileUpload;
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8 import nabble.model.Init;
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9 import nabble.model.Message;
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10 import nabble.model.ModelException;
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11 import nabble.model.User;
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12 import nabble.view.lib.Jtp;
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13 import nabble.view.lib.Shared;
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14 import org.apache.commons.fileupload.FileItem;
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15 import org.apache.commons.fileupload.FileUploadException;
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16 import org.slf4j.Logger;
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17 import org.slf4j.LoggerFactory;
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18
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19 import javax.imageio.ImageIO;
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20 import javax.servlet.ServletException;
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21 import javax.servlet.http.HttpServlet;
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22 import javax.servlet.http.HttpServletRequest;
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23 import javax.servlet.http.HttpServletResponse;
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24 import java.awt.image.BufferedImage;
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25 import java.io.FileOutputStream;
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26 import java.io.IOException;
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27 import java.io.InputStream;
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28 import java.io.PrintWriter;
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29 import java.util.Map;
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30 import java.util.Random;
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31
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32
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33 public final class ChangeAvatar2 extends HttpServlet {
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34
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35 private static final Logger logger = LoggerFactory.getLogger(ChangeAvatar2.class);
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36
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37 private static final long SIZE_LIMIT = 4194304; // 4 Mb
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38
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39 private void handleError(HttpServletRequest request, String errorMessage, PrintWriter out) {
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40
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41 out.print( "\r\n<html>\r\n <head>\r\n " );
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42 Shared.loadJavascript(request, out);
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43 out.print( "\r\n <script type=\"text/javascript\">\r\n function say() {\r\n alert(\"" );
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44 out.print( (HtmlUtils.javascriptStringEncode(errorMessage)) );
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45 out.print( "\");\r\n location.replace(\"" );
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46 out.print( (request.getContextPath()) );
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47 out.print( "/user/ChangeAvatar.jtp\");\r\n };\r\n </script>\r\n </head>\r\n <body onload=\"say()\"></body>\r\n</html>\r\n" );
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48
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49 }
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50
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51 protected void service(HttpServletRequest request, HttpServletResponse response)
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52 throws ServletException, IOException {
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53 JtpContext jtpContext = (JtpContext)getServletContext().getAttribute(JtpContext.attrName);
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54 jtpContext.setTimeLimit(request,0L);
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55 PrintWriter out = response.getWriter();
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56 String context = request.getContextPath();
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57 User user = Jtp.getUser(request, response);
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58 if (user == null) {
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59 Jtp.login("You must login to change your avatar.", request, response);
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60 return;
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61 }
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62
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63 String errorMessage = null;
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64
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65 String action = request.getParameter("action");
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66 if ("crop".equals(action)) {
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67 String imageName = request.getParameter("image");
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68 int x = Jtp.getInt(request, "crop_x");
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69 int y = Jtp.getInt(request, "crop_y");
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70 int width = Jtp.getInt(request, "crop_width");
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71 int height = Jtp.getInt(request, "crop_height");
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72 try {
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73 Message.Source srcTemp = Message.SourceType.getType('t').getSource(user.getSite(),user.getId());
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74 InputStream in = FileUpload.getFileContent(srcTemp, imageName);
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75 if (in == null) {
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76 handleError(request, "Error uploading image. Please try again.", out);
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77 return;
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78 }
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79 BufferedImage originalImage = ImageIO.read(in);
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80 in.close();
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81 if (originalImage.getWidth() < 100 || originalImage.getHeight() < 100) {
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82 handleError(request, "The width and height must be greater than 100 pixels.", out);
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83 return;
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84 }
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85
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86 BufferedImage croppedImage100 = ImageUtils.cropImage(originalImage, x, y, width, height);
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87 croppedImage100 = ImageUtils.getThumbnail(croppedImage100, 100, 100);
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88
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89 BufferedImage croppedImage24 = ImageUtils.blurImage(croppedImage100);
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90 croppedImage24 = ImageUtils.resizeImage(croppedImage24, 24, 24);
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91
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92 user.saveAvatar(croppedImage24,croppedImage100);
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93 FileUpload.deleteFile(imageName, srcTemp);
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94 } catch (ModelException e) {
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95 logger.error(toString(), e);
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96 errorMessage = e.getMessage();
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97 }
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98
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99 if (errorMessage == null) {
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100 response.sendRedirect("/user/ChangeAvatar2$ReloadAvatars.jtp");
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101 return;
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102 } else {
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103 handleError(request, errorMessage, out);
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104 return;
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105 }
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106 } else if ("delete".equals(action)) {
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107 user.deleteAvatar();
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108 response.sendRedirect("/user/ChangeAvatar2$ReloadAvatars.jtp");
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109 return;
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110 }
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111
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112 int imageWidth = 0;
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113 int imageHeight = 0;
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114 String fileName = "_user" + user.getId() + ".png";
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115 try {
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116 final Map<String, FileItem> map;
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117 try {
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118 map = Jtp.getFileItems(request);
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119 } catch (FileUploadException e) {
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120 logger.warn("",e);
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121 throw ModelException.newInstance("upload_avatar_failed","upload failed - " + e.getMessage());
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122 }
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123 FileItem fi = map.get("image");
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124
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125 if (fi == null) {
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126 handleError(request, "Image upload failed.", out);
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127 return;
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128 } else if (fi.getSize() > SIZE_LIMIT) {
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129 handleError(request, "The file you uploaded is too big. Please upload a smaller image (less than 4Mb).", out);
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130 return;
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131 }
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132
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133 InputStream in = fi.getInputStream();
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134 BufferedImage image;
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135 try {
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136 image = ImageIO.read(in);
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137 } catch (javax.imageio.IIOException e) {
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138 handleError(request, "The uploaded image is broken.", out);
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139 return;
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140 } finally {
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141 in.close();
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142 }
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143 if (image == null) {
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144 handleError(request, "Please upload the image again.", out);
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145 return;
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146 } else if (image.getWidth() < 100 || image.getHeight() < 100) {
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147 handleError(request, "The width and height must be greater than 100 pixels.", out);
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148 return;
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149 } else if (image.getWidth() > 800 || image.getHeight() > 800) {
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150 try {
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151 image = ImageUtils.getThumbnail(image, 800, 800);
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152 } catch (RuntimeException e) {
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153 // This catch block will be improved later when I discover the exact line that throws
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154 // a RuntimeException in ImageUtils [Hugo - April/2010]
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155 if (fi.getSize() <= FileUpload.MAX_IMAGE_SIZE) {
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156 if( Init.tempDir == null ) {
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157 logger.info("Init.tempDir == null");
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158 } else {
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159 FileOutputStream fos = new FileOutputStream(Init.tempDir + FileUpload.getName(fi));
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160 fos.write(fi.get());
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161 fos.close();
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162 }
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163 }
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164 handleError(request, "Unable to handle this image.", out);
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165 return;
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166 }
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167 }
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168
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169 imageWidth = image.getWidth();
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170 imageHeight = image.getHeight();
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171
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172 Message.Source tempSrc = Message.SourceType.getType('t').getSource(user.getSite(),user.getId());
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173 FileUpload.saveImage(image, fileName, tempSrc);
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174 } catch (ModelException e) {
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175 errorMessage = e.getMessage();
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176 logger.warn("image upload failed", e);
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177 }
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178
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179 if (errorMessage != null) {
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180 handleError(request, errorMessage, out);
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181 return;
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182 }
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183
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184 out.print( "\r\n<html>\r\n<head>\r\n " );
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185 Shared.title(request,response,"Change Avatar");
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186 out.print( "\r\n <style type=\"text/css\">\r\n #imageContainer{\r\n margin:15px;\r\n left:0px;\r\n top:0px;\r\n position:relative;\r\n }\r\n\r\n .crop_transparentDiv{\r\n background-color:#FFF;\r\n filter:alpha(opacity=80);\r\n -khtml-opacity: 0.8;\r\n -moz-opacity: 0.8;\r\n opacity:0.8;\r\n position:absolute;\r\n }\r\n .crop_dottedDiv{\r\n position:absolute;\r\n border:1px dotted red;\r\n z-index:10000;\r\n }\r\n\r\n .crop_dottedDiv div{\r\n filter:alpha(opacity=0);\r\n opacity:0;\r\n -khtml-opacity: 0;\r\n -moz-opacity: 0;\r\n width:100%;\r\n height:100%;\r\n background-color:#FFF;\r\n }\r\n </style>\r\n <script type=\"text/javascript\">\r\n var crop_script_alwaysPreserveAspectRatio = true; // Always preserve aspect ratio\r\n var crop_script_fixedRatio = 1; // Width relative to height 2 = ratio 2:1\r\n\r\n var cropToolBorderWidth = 1; // Width of dotted border around crop rectangle\r\n var smallSquareWidth = 7; // Size of small squares used to resize crop rectangle\r\n\r\n // Size of image shown in crop tool\r\n var crop_imageWidth = " );
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187 out.print( (imageWidth) );
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188 out.print( ";\r\n var crop_imageHeight = " );
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189 out.print( (imageHeight) );
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190 out.print( ";\r\n\r\n // Size of original image\r\n var crop_originalImageWidth = crop_imageWidth;\r\n var crop_originalImageHeight = crop_imageHeight;\r\n\r\n var crop_minimumPercent = 10; // Minimum percent - resize\r\n var crop_maximumPercent = 100; // Maximum percent -resize\r\n\r\n var crop_minimumWidthHeight = 100; // Minimum width and height of crop area\r\n\r\n var updateFormValuesAsYouDrag = true; // This variable indicates if form values should be updated as we drag. This process could make the script work a little bit slow. That's why this option is set as a variable.\r\n if(!document.all)updateFormValuesAsYouDrag = false; // Enable this feature only in IE\r\n </script>\r\n <script src=\"" );
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191 out.print( (context) );
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192 out.print( "/util/image-crop.js\" type=\"text/javascript\"></script>\r\n</head>\r\n<body>\r\n" );
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193
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194 Shared.minHeaderGlobal(request, response);
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195 Shared.profileHeading(request,out,user,"Change Avatar - Crop Image");
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196
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197 out.print( "\r\n<b>Please select a square region on the image below.</b><br/>\r\nYou can drag the red handles to resize the square or drag the whole selected area.\r\n<br/><br/>\r\n<form action=\"/user/ChangeAvatar2.jtp\" method=\"POST\" accept-charset=\"UTF-8\">\r\n <input type=\"hidden\" name=\"action\" value=\"crop\">\r\n <input type=\"hidden\" name=\"image\" value=\"" );
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198 out.print( (fileName) );
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199 out.print( "\">\r\n <input type=\"hidden\" name=\"crop_x\" id=\"input_crop_x\">\r\n <input type=\"hidden\" name=\"crop_y\" id=\"input_crop_y\">\r\n <input type=\"hidden\" name=\"crop_width\" id=\"input_crop_width\">\r\n <input type=\"hidden\" name=\"crop_height\" id=\"input_crop_height\">\r\n <input type=\"hidden\" name=\"crop_percent_size\" id=\"crop_percent_size\">\r\n <input type=\"submit\" value=\"Crop Image\">\r\n</form>\r\n<div class=\"crop_content\">\r\n <div id=\"imageContainer\">\r\n " );
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200
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201 // Here I create a random number that is appended to the end
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202 // of the image URL. This prevents the browser from showing an
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203 // old cached image.
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204 Random random = new Random();
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205 int any = random.nextInt(1000);
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206
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207 out.print( "\r\n<img src=\"/file/t" );
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208 out.print( (user.getId()) );
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209 out.print( "/" );
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210 out.print( (fileName) );
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211 out.print( "?" );
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212 out.print( (any) );
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213 out.print( "\"/>\r\n</div>\r\n</div>\r\n\r\n<script type=\"text/javascript\">\r\ninit_imageCrop('http://" );
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214 out.print( (request.getHeader("host")) );
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215 out.print( "');\r\n\r\nif (Nabble.isEmbedded) {\r\n$(window).load(Nabble.resizeFrames);\r\n}\r\n</script>\r\n\r\n" );
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216 Shared.footer(request,response);
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217 out.print( "\r\n" );
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218 Shared.analytics(request,response);
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219 out.print( "\r\n</body>\r\n</html>\r\n" );
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220
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221 }
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222
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223 public static class ReloadAvatars extends HttpServlet {
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224
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225 protected void service(HttpServletRequest request, HttpServletResponse response)
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226 throws ServletException, IOException
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227 {
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228 /*
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229 This servlet is a tricky way to force the browser to reload the user avatars.
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230 Since we don't specify cache headers for images, browsers cache them using
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231 internal algorithms. The only way to update those images is by refreshing the page
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232 either by pressing F5 or using location.reload(true).
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233 */
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234 PrintWriter out = response.getWriter();
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235 User user = Jtp.getUser(request, response);
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236 if (user == null)
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237 return;
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238 Jtp.dontCache(response);
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239
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240 out.print( "\r\n<html>\r\n <head>\r\n " );
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241 Shared.loadJavascript(request, out);
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242 out.print( "\r\n <script type=\"text/javascript\">\r\n function init() {\r\n var done = Nabble.getCookie('done');\r\n if (done) {\r\n Nabble.deleteCookie('done');\r\n location = '/template/NamlServlet.jtp?macro=user_profile';\r\n } else {\r\n Nabble.setCookie('done','y');\r\n location.reload(true);\r\n }\r\n };\r\n </script>\r\n </head>\r\n <body onload=\"init()\">\r\n <div style=\"display:none\">\r\n <img src=\"" );
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243 out.print( (Shared.getAvatarImageURL(user, false)) );
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244 out.print( "\"/>\r\n <img src=\"" );
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245 out.print( (Shared.getAvatarImageURL(user, true)) );
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246 out.print( "\"/>\r\n </div>\r\n </body>\r\n</html>\r\n" );
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247
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248 }
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249
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250 }
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251 }
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252
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