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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 <html>
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42 <head>
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43 <% Shared.loadJavascript(request, out); %>
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44 <script type="text/javascript">
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45 function say() {
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46 alert("<%=HtmlUtils.javascriptStringEncode(errorMessage)%>");
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47 location.replace("<%=request.getContextPath()%>/user/ChangeAvatar.jtp");
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48 };
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49 </script>
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50 </head>
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51 <body onload="say()"></body>
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52 </html>
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53 <%
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54 }
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55
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56 protected void service(HttpServletRequest request, HttpServletResponse response)
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57 throws ServletException, IOException {
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58 JtpContext jtpContext = (JtpContext)getServletContext().getAttribute(JtpContext.attrName);
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59 jtpContext.setTimeLimit(request,0L);
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60 PrintWriter out = response.getWriter();
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61 String context = request.getContextPath();
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62 User user = Jtp.getUser(request, response);
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63 if (user == null) {
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64 Jtp.login("You must login to change your avatar.", request, response);
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65 return;
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66 }
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67
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68 String errorMessage = null;
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69
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70 String action = request.getParameter("action");
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71 if ("crop".equals(action)) {
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72 String imageName = request.getParameter("image");
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73 int x = Jtp.getInt(request, "crop_x");
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74 int y = Jtp.getInt(request, "crop_y");
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75 int width = Jtp.getInt(request, "crop_width");
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76 int height = Jtp.getInt(request, "crop_height");
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77 try {
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78 Message.Source srcTemp = Message.SourceType.getType('t').getSource(user.getSite(),user.getId());
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79 InputStream in = FileUpload.getFileContent(srcTemp, imageName);
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80 if (in == null) {
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81 handleError(request, "Error uploading image. Please try again.", out);
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82 return;
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83 }
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84 BufferedImage originalImage = ImageIO.read(in);
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85 in.close();
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86 if (originalImage.getWidth() < 100 || originalImage.getHeight() < 100) {
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87 handleError(request, "The width and height must be greater than 100 pixels.", out);
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88 return;
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89 }
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90
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91 BufferedImage croppedImage100 = ImageUtils.cropImage(originalImage, x, y, width, height);
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92 croppedImage100 = ImageUtils.getThumbnail(croppedImage100, 100, 100);
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93
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94 BufferedImage croppedImage24 = ImageUtils.blurImage(croppedImage100);
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95 croppedImage24 = ImageUtils.resizeImage(croppedImage24, 24, 24);
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96
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97 user.saveAvatar(croppedImage24,croppedImage100);
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98 FileUpload.deleteFile(imageName, srcTemp);
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99 } catch (ModelException e) {
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100 logger.error(toString(), e);
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101 errorMessage = e.getMessage();
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102 }
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103
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104 if (errorMessage == null) {
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105 response.sendRedirect("/user/ChangeAvatar2$ReloadAvatars.jtp");
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106 return;
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107 } else {
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108 handleError(request, errorMessage, out);
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109 return;
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110 }
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111 } else if ("delete".equals(action)) {
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112 user.deleteAvatar();
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113 response.sendRedirect("/user/ChangeAvatar2$ReloadAvatars.jtp");
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114 return;
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115 }
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116
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117 int imageWidth = 0;
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118 int imageHeight = 0;
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119 String fileName = "_user" + user.getId() + ".png";
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120 try {
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121 final Map<String, FileItem> map;
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122 try {
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123 map = Jtp.getFileItems(request);
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124 } catch (FileUploadException e) {
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125 logger.warn("",e);
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126 throw ModelException.newInstance("upload_avatar_failed","upload failed - " + e.getMessage());
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127 }
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128 FileItem fi = map.get("image");
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129
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130 if (fi == null) {
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131 handleError(request, "Image upload failed.", out);
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132 return;
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133 } else if (fi.getSize() > SIZE_LIMIT) {
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134 handleError(request, "The file you uploaded is too big. Please upload a smaller image (less than 4Mb).", out);
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135 return;
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136 }
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137
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138 InputStream in = fi.getInputStream();
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139 BufferedImage image;
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140 try {
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141 image = ImageIO.read(in);
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142 } catch (javax.imageio.IIOException e) {
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143 handleError(request, "The uploaded image is broken.", out);
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144 return;
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145 } finally {
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146 in.close();
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147 }
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148 if (image == null) {
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149 handleError(request, "Please upload the image again.", out);
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150 return;
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151 } else if (image.getWidth() < 100 || image.getHeight() < 100) {
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152 handleError(request, "The width and height must be greater than 100 pixels.", out);
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153 return;
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154 } else if (image.getWidth() > 800 || image.getHeight() > 800) {
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155 try {
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156 image = ImageUtils.getThumbnail(image, 800, 800);
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157 } catch (RuntimeException e) {
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158 // This catch block will be improved later when I discover the exact line that throws
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159 // a RuntimeException in ImageUtils [Hugo - April/2010]
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160 if (fi.getSize() <= FileUpload.MAX_IMAGE_SIZE) {
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161 if( Init.tempDir == null ) {
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162 logger.info("Init.tempDir == null");
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163 } else {
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164 FileOutputStream fos = new FileOutputStream(Init.tempDir + FileUpload.getName(fi));
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165 fos.write(fi.get());
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166 fos.close();
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167 }
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168 }
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169 handleError(request, "Unable to handle this image.", out);
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170 return;
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171 }
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172 }
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173
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174 imageWidth = image.getWidth();
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175 imageHeight = image.getHeight();
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176
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177 Message.Source tempSrc = Message.SourceType.getType('t').getSource(user.getSite(),user.getId());
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178 FileUpload.saveImage(image, fileName, tempSrc);
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179 } catch (ModelException e) {
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180 errorMessage = e.getMessage();
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181 logger.warn("image upload failed", e);
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182 }
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183
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184 if (errorMessage != null) {
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185 handleError(request, errorMessage, out);
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186 return;
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187 }
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188 %>
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189 <html>
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190 <head>
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191 <% Shared.title(request,response,"Change Avatar"); %>
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192 <style type="text/css">
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193 #imageContainer{
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194 margin:15px;
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195 left:0px;
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196 top:0px;
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197 position:relative;
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198 }
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199
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200 .crop_transparentDiv{
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201 background-color:#FFF;
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202 filter:alpha(opacity=80);
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203 -khtml-opacity: 0.8;
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204 -moz-opacity: 0.8;
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205 opacity:0.8;
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206 position:absolute;
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207 }
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208 .crop_dottedDiv{
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209 position:absolute;
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210 border:1px dotted red;
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211 z-index:10000;
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212 }
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213
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214 .crop_dottedDiv div{
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215 filter:alpha(opacity=0);
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216 opacity:0;
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217 -khtml-opacity: 0;
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218 -moz-opacity: 0;
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219 width:100%;
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220 height:100%;
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221 background-color:#FFF;
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222 }
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223 </style>
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224 <script type="text/javascript">
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225 var crop_script_alwaysPreserveAspectRatio = true; // Always preserve aspect ratio
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226 var crop_script_fixedRatio = 1; // Width relative to height 2 = ratio 2:1
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227
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228 var cropToolBorderWidth = 1; // Width of dotted border around crop rectangle
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229 var smallSquareWidth = 7; // Size of small squares used to resize crop rectangle
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230
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231 // Size of image shown in crop tool
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232 var crop_imageWidth = <%=imageWidth%>;
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233 var crop_imageHeight = <%=imageHeight%>;
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234
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235 // Size of original image
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236 var crop_originalImageWidth = crop_imageWidth;
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237 var crop_originalImageHeight = crop_imageHeight;
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238
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239 var crop_minimumPercent = 10; // Minimum percent - resize
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240 var crop_maximumPercent = 100; // Maximum percent -resize
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241
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242 var crop_minimumWidthHeight = 100; // Minimum width and height of crop area
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243
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244 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.
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245 if(!document.all)updateFormValuesAsYouDrag = false; // Enable this feature only in IE
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246 </script>
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247 <script src="<%=context%>/util/image-crop.js" type="text/javascript"></script>
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248 </head>
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249 <body>
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250 <%
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251 Shared.minHeaderGlobal(request, response);
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252 Shared.profileHeading(request,out,user,"Change Avatar - Crop Image");
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253 %>
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254 <b>Please select a square region on the image below.</b><br/>
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255 You can drag the red handles to resize the square or drag the whole selected area.
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256 <br/><br/>
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257 <form action="/user/ChangeAvatar2.jtp" method="POST" accept-charset="UTF-8">
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258 <input type="hidden" name="action" value="crop">
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259 <input type="hidden" name="image" value="<%=fileName%>">
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260 <input type="hidden" name="crop_x" id="input_crop_x">
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261 <input type="hidden" name="crop_y" id="input_crop_y">
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262 <input type="hidden" name="crop_width" id="input_crop_width">
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263 <input type="hidden" name="crop_height" id="input_crop_height">
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264 <input type="hidden" name="crop_percent_size" id="crop_percent_size">
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265 <input type="submit" value="Crop Image">
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266 </form>
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267 <div class="crop_content">
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268 <div id="imageContainer">
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269 <%
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270 // Here I create a random number that is appended to the end
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271 // of the image URL. This prevents the browser from showing an
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272 // old cached image.
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273 Random random = new Random();
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274 int any = random.nextInt(1000);
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275 %>
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276 <img src="/file/t<%=user.getId()%>/<%=fileName%>?<%=any%>"/>
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277 </div>
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278 </div>
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279
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280 <script type="text/javascript">
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281 init_imageCrop('http://<%=request.getHeader("host")%>');
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282
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283 if (Nabble.isEmbedded) {
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284 $(window).load(Nabble.resizeFrames);
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285 }
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286 </script>
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287
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288 <% Shared.footer(request,response); %>
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289 <% Shared.analytics(request,response); %>
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290 </body>
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291 </html>
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292 <%
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293 }
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294
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295 public static class ReloadAvatars extends HttpServlet {
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296
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297 protected void service(HttpServletRequest request, HttpServletResponse response)
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298 throws ServletException, IOException
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299 {
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300 /*
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301 This servlet is a tricky way to force the browser to reload the user avatars.
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302 Since we don't specify cache headers for images, browsers cache them using
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303 internal algorithms. The only way to update those images is by refreshing the page
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304 either by pressing F5 or using location.reload(true).
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305 */
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306 PrintWriter out = response.getWriter();
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307 User user = Jtp.getUser(request, response);
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308 if (user == null)
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309 return;
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310 Jtp.dontCache(response);
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311 %>
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312 <html>
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313 <head>
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314 <% Shared.loadJavascript(request, out); %>
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315 <script type="text/javascript">
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316 function init() {
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317 var done = Nabble.getCookie('done');
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318 if (done) {
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319 Nabble.deleteCookie('done');
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320 location = '/template/NamlServlet.jtp?macro=user_profile';
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321 } else {
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322 Nabble.setCookie('done','y');
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323 location.reload(true);
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324 }
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325 };
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326 </script>
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327 </head>
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328 <body onload="init()">
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329 <div style="display:none">
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330 <img src="<%=Shared.getAvatarImageURL(user, false)%>"/>
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331 <img src="<%=Shared.getAvatarImageURL(user, true)%>"/>
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332 </div>
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333 </body>
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334 </html>
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335 <%
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336 }
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337
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338 }
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339 }
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340 %>
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