2 * This file is part of NixNote
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3 * Copyright 2009 Randy Baumgarte
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5 * This file may be licensed under the terms of of the
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6 * GNU General Public License Version 2 (the ``GPL'').
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8 * Software distributed under the License is distributed
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9 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
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10 * express or implied. See the GPL for the specific language
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11 * governing rights and limitations.
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13 * You should have received a copy of the GPL along with this
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14 * program. If not, go to http://www.gnu.org/licenses/gpl.html
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15 * or write to the Free Software Foundation, Inc.,
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16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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21 package cx.fbn.nevernote.xml;
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23 import java.util.ArrayList;
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24 import java.util.List;
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26 import com.trolltech.qt.xml.QDomDocument;
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27 import com.trolltech.qt.xml.QDomElement;
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28 import com.trolltech.qt.xml.QDomNode;
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29 import com.trolltech.qt.xml.QDomNodeList;
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30 import com.trolltech.qt.xml.QDomText;
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32 import cx.fbn.nevernote.Global;
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34 public class XMLCleanup {
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35 private String content;
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36 private QDomDocument doc;
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37 private final List<String> resources;
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39 public XMLCleanup() {
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40 resources = new ArrayList<String>();
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44 public void setValue(String text) {
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47 public String getValue() {
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50 // Validate the contents of the note. Change unsupported things
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51 public void validate() {
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52 doc = new QDomDocument();
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53 int br = content.lastIndexOf("</en-note>");
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54 content = new String(content.substring(0,br));
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56 int k = content.indexOf("<en-note");
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59 newContent = new String(content.substring(k));
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62 // Fix the background color
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65 newContent = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
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66 +"<!DOCTYPE en-note SYSTEM \"http://xml.evernote.com/pub/enml2.dtd\">\n"
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70 QDomDocument.Result result = doc.setContent(newContent);
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71 if (!result.success) {
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72 System.out.println("DOM error in XMLValidator.validate()");
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73 System.out.println(newContent);
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74 System.out.println("Location : Line-"+result.errorLine +" Column-" + result.errorColumn);
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75 System.out.println("Exiting");
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80 QDomNodeList noteAnchors = doc.elementsByTagName("en-note");
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81 int noteCount = noteAnchors.length();
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82 for (int i=noteCount-1; i>=0; i--) {
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83 if (noteAnchors.at(i).toElement().hasAttribute("style")) {
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84 String style = noteAnchors.at(i).toElement().attribute("style");
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85 int startColor = style.indexOf("background-color:");
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86 if (startColor > -1) {
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87 String color = style.substring(startColor+17);
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88 color = color.substring(0,color.indexOf(";"));
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89 noteAnchors.at(i).toElement().setAttribute("bgcolor", color);
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94 // Scan through tags node by node
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97 // Scan again making sure we didn't miss any <a> tags. Sometimes we do
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98 QDomNodeList anchorList = doc.elementsByTagName("a");
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99 int anchorCount = anchorList.length();
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100 for (int i=anchorCount-1; i>=0; i--) {
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101 QDomNode link = anchorList.at(i);
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102 link = fixLinkNode(link);
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105 // Remove invalid elements & attributes
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106 // Modify en-media tags
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107 QDomNodeList anchors;
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108 for (String key : Global.invalidAttributes.keySet()) {
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109 anchors = doc.elementsByTagName(key);
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110 int enMediaCount = anchors.length();
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111 for (int i=enMediaCount-1; i>=0; i--) {
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112 QDomElement element = anchors.at(i).toElement();
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113 ArrayList<String> names = Global.invalidAttributes.get(element.nodeName().toLowerCase());
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114 if (names != null) {
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115 for (int j=0; j<names.size(); j++) {
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116 element.removeAttribute(names.get(j));
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122 List<String> elements = Global.invalidElements;
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123 for (int j=0; j<elements.size(); j++) {
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124 anchors = doc.elementsByTagName(elements.get(j));
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125 int enMediaCount = anchors.length();
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126 for (int i=enMediaCount-1; i>=0; i--) {
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127 QDomElement element = anchors.at(i).toElement();
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128 element.setTagName("span");
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131 // Replace the XML carrage returns that the toString() creates.
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132 content = doc.toString().replace( "
", "" );
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135 // Start looking through the tree.
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136 private void scanTags() {
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138 if (doc.hasChildNodes())
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139 parseNodes(doc.childNodes());
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143 private void parseNodes(QDomNodeList nodes) {
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144 for (int i=0; i<nodes.size(); i++) {
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145 QDomNode node = nodes.at(i);
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146 if (node.hasChildNodes())
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147 parseNodes(node.childNodes());
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153 // Fix the contents of the node back to ENML.
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154 private void fixNode(QDomNode node) {
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155 QDomElement scanChecked = node.toElement();
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156 if (scanChecked.hasAttribute("checked")) {
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157 System.out.println(scanChecked.attribute("checked"));
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158 if (!scanChecked.attribute("checked").equalsIgnoreCase("true"))
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159 scanChecked.setAttribute("checked", "false");
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161 if (node.nodeName().equalsIgnoreCase("#comment") || node.nodeName().equalsIgnoreCase("script")) {
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162 node.parentNode().removeChild(node);
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164 if (node.nodeName().equalsIgnoreCase("input")) {
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165 QDomElement e = node.toElement();
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166 e.setTagName("en-todo");
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167 String value = e.attribute("value");
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168 e.removeAttribute("value");
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169 e.removeAttribute("unchecked");
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170 e.setAttribute("checked", value);
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171 e.removeAttribute("onclick");
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172 e.removeAttribute("type");
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175 if (node.nodeName().equalsIgnoreCase("a")) {
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176 node = fixLinkNode(node);
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178 // Restore image resources
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179 if (node.nodeName().equalsIgnoreCase("img")) {
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180 QDomElement e = node.toElement();
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181 String enType = e.attribute("en-tag");
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183 // Check if we have an en-crypt tag. Change it from an img to en-crypt
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184 if (enType.equalsIgnoreCase("en-crypt")) {
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186 String encrypted = e.attribute("alt");
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188 QDomText crypt = doc.createTextNode(encrypted);
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189 e.appendChild(crypt);
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191 e.removeAttribute("v:shapes");
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192 e.removeAttribute("en-tag");
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193 e.removeAttribute("contenteditable");
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194 e.removeAttribute("alt");
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195 e.removeAttribute("src");
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196 e.removeAttribute("id");
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197 e.removeAttribute("onclick");
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198 e.removeAttribute("onmouseover");
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199 e.setTagName("en-crypt");
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200 node.removeChild(e);
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204 // Check if we have a LaTeX image. Remove the parent link tag
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205 if (enType.equalsIgnoreCase("en-latex")) {
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206 enType = "en-media";
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207 QDomNode parent = e.parentNode();
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208 parent.removeChild(e);
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209 parent.parentNode().replaceChild(e, parent);
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212 // If we've gotten this far, we have an en-media tag
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213 e.setTagName(enType);
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214 resources.add(e.attribute("guid"));
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215 e.removeAttribute("guid");
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216 e.removeAttribute("src");
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217 e.removeAttribute("en-new");
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218 e.removeAttribute("en-tag");
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221 // Tags like <ul><ul><li>1</li></ul></ul> are technically valid, but Evernote
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222 // expects that a <ul> tag only has a <li>, so we will need to change them
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223 // to this: <ul><li><ul><li>1</li></ul></li></ul>
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224 if (node.nodeName().equalsIgnoreCase("ul")) {
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225 QDomNode firstChild = node.firstChild();
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226 QDomElement childElement = firstChild.toElement();
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227 if (childElement.nodeName().equalsIgnoreCase("ul")) {
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228 QDomElement newElement = doc.createElement("li");
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229 node.insertBefore(newElement, firstChild);
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230 node.removeChild(firstChild);
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231 newElement.appendChild(firstChild);
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235 if (node.nodeName().equalsIgnoreCase("en-hilight")) {
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236 QDomElement e = node.toElement();
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237 QDomText newText = doc.createTextNode(e.text());
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238 e.parentNode().replaceChild(newText,e);
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240 if (node.nodeName().equalsIgnoreCase("span")) {
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241 QDomElement e = node.toElement();
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242 if (e.attribute("class").equalsIgnoreCase("en-hilight") || e.attribute("class").equalsIgnoreCase("en-spell")) {
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243 QDomText newText = doc.createTextNode(e.text());
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244 e.parentNode().replaceChild(newText,e);
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246 if (e.attribute("pdfnavigationtable").equalsIgnoreCase("true")) {
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247 node.parentNode().removeChild(node);
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251 // Fix up encryption tag
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252 if (node.nodeName().equalsIgnoreCase("en-crypt-temp")) {
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253 QDomElement e = node.toElement();
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254 e.setTagName("en-crypt");
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255 String crypt = e.attribute("value");
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256 e.removeAttribute("value");
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257 QDomText cryptValue = doc.createTextNode(crypt);
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258 e.appendChild(cryptValue);
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263 private QDomNode fixLinkNode(QDomNode node) {
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264 QDomElement e = node.toElement();
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265 String enTag = e.attribute("en-tag");
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266 if (enTag.equalsIgnoreCase("en-media")) {
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267 e.setTagName("en-media");
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268 e.removeAttribute("en-type");
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269 e.removeAttribute("en-tag");
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270 e.removeAttribute("en-new");
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271 resources.add(e.attribute("guid"));
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272 e.removeAttribute("href");
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273 e.removeAttribute("guid");
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274 e.setNodeValue("");
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275 e.removeChild(e.firstChildElement());
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281 // Return old resources we've found
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282 public List<String> getResources() {
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