source: XmlTools2/trunk/xmlpatch.cpp@ 925

Last change on this file since 925 was 923, checked in by s10k, 11 years ago

XmlTools2
added --no-verbose mode
The insertion of xml via patch now support multiple nodes inside <xml></xml> tags
File size: 19.4 KB
Line 
1#include "xmlpatch.h"
2
3XmlPatch::XmlPatch(QString patchFilesWildcard, QString forceTargetFilesWildcard, bool noBackups, bool noVerbose)
4{
5 this->patchFilesToProcess=UtilXmlTools::getAllPatchFilesByWildcard(patchFilesWildcard);
6 this->forceTargetFilesWildcard=forceTargetFilesWildcard;
7 this->backupsEnabled=!noBackups;
8 this->verboseEnabled=!noVerbose;
9
10 if(forceTargetFilesWildcard!=""){
11 std::cout << "User forced patch in the target file(s): " << forceTargetFilesWildcard.toLatin1().constData() << std::endl;
12 }
13
14 if(this->patchFilesToProcess.isEmpty()){
15 UtilXmlTools::displayErrorMessage("Loading patch files","No .patch or .oni-patch files were found for the wildcard: "+patchFilesWildcard);
16 }
17
18}
19
20void XmlPatch::readAndProcessPatchFile(){
21
22 // Process all PatchFiles
23 for(int i=0; i<this->patchFilesToProcess.size(); i++){
24
25 QFile inputFile(this->patchFilesToProcess[i]);
26
27 if (inputFile.open(QIODevice::ReadOnly))
28 {
29
30 QTextStream fileStream(&inputFile);
31
32 checkPatchVersion(this->patchFilesToProcess[i], fileStream);
33 checkAndProcessValidCommands(fileStream);
34
35 inputFile.close();
36 }
37 else{
38 UtilXmlTools::displayErrorMessage("Read patch file", "Error opening patch file: '" + this->patchFilesToProcess[i] + "'.\n" + inputFile.errorString());
39 }
40
41 }
42
43 UtilXmlTools::displaySuccessMessage(this->patchFilesToProcess.size(),"Patch File(s)");
44
45}
46
47void XmlPatch::insertNodesOperation(const QString &xmlString, XmlFilter &filters, const QString &xPathExpression, const QString &filesWildcard){
48
49 QStringList filesToProcess;
50 QList<pugi::xml_node> nodesToInsertion;
51 pugi::xml_document newNode;
52 pugi::xml_parse_result result;
53
54 filesToProcess=UtilXmlTools::getAllXmlFilesByWildcard(filesWildcard);
55
56 if(filesToProcess.isEmpty()){
57 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES","No XML files were found for the wildcard: "+filesWildcard);
58 }
59
60 result=newNode.load(xmlString.toLatin1().constData()); // load xml to insert
61
62 if(result.status!=pugi::status_ok){
63 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES", "The xml node to insert is invalid.\n" + Util::toQString(result.description()));
64 }
65
66 // Process all XmlFiles
67 for(int i=0; i<filesToProcess.size(); i++){
68
69 UtilXmlTools::loadXmlFile(filesToProcess[i],this->document,this->rootNode,this->backupsEnabled,this->verboseEnabled,"@ADD_INSIDE_NODES");
70
71 // Check how the element will be fetched via element name or xpath expression
72 if(xPathExpression.isEmpty()){
73 UtilXmlTools::getAllNamedElements(this->rootNode,nodesToInsertion,filters);
74 }
75 else{
76 UtilXmlTools::getAllXpathElements(xPathExpression,this->document,nodesToInsertion);
77 }
78
79 if(nodesToInsertion[0].type()==pugi::node_null){
80
81 QString errMessage;
82
83 if(xPathExpression.isEmpty()){
84 errMessage = "It wasn't found any node with a ElementName: '" + filters.getElementName() + "'";
85 if(filters.getParentElementName()!=""){
86 errMessage += " and a ParentElementName: '" + filters.getParentElementName() + "'";
87 }
88 if(filters.getAttributeName()!=""){
89 errMessage += " and an AttributeName: '" + filters.getAttributeName() + "' and an AttributeValue: '" + filters.getAttributeValue() + "'";
90 }
91 }
92 else{
93 errMessage = "It wasn't found any node with a XPathExpression: '" + xPathExpression + "'";
94 }
95
96 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES",errMessage);
97 }
98
99 for(int j=0; j<nodesToInsertion.size(); j++){
100 for (pugi::xml_node currNodeToInsert = newNode.first_child(); currNodeToInsert; currNodeToInsert = currNodeToInsert.next_sibling())
101 {
102 nodesToInsertion[j].append_copy(currNodeToInsert); // append the new node
103 }
104
105 }
106
107 UtilXmlTools::saveXmlFile(filesToProcess[i],this->document, "@ADD_INSIDE_NODES");
108
109 nodesToInsertion.clear();
110 }
111
112 UtilXmlTools::displaySuccessMessage(filesToProcess.size(),"@ADD_INSIDE_NODES");
113}
114
115void XmlPatch::removeNodesOperation(XmlFilter &filters, const QString &xPathExpression, const QString &filesWildcard){
116
117 QStringList filesToProcess;
118
119 QList<pugi::xml_node> nodesToDeletion;
120
121 filesToProcess=UtilXmlTools::getAllXmlFilesByWildcard(filesWildcard);
122
123 if(filesToProcess.isEmpty()){
124 UtilXmlTools::displayErrorMessage("@REMOVE_NODES","No XML files were found for the wildcard: "+filesWildcard);
125 }
126
127 // Process all XmlFiles
128 for(int i=0; i<filesToProcess.size(); i++){
129
130 UtilXmlTools::loadXmlFile(filesToProcess[i],this->document,this->rootNode,this->backupsEnabled,this->verboseEnabled,"@REMOVE_NODES");
131
132 // Check how the element will be fetched via element name or xpath expression
133 if(xPathExpression.isEmpty()){
134 UtilXmlTools::getAllNamedElements(this->rootNode,nodesToDeletion,filters);
135 }
136 else{
137 UtilXmlTools::getAllXpathElements(xPathExpression,this->document,nodesToDeletion);
138 }
139
140 if(nodesToDeletion[0].type()==pugi::node_null){
141
142 QString errMessage;
143
144 if(xPathExpression.isEmpty()){
145 errMessage = "It wasn't found any node with a ElementName: '" + filters.getElementName() + "'";
146 if(filters.getParentElementName()!=""){
147 errMessage += " and a ParentElementName: '" + filters.getParentElementName() + "'";
148 }
149 if(filters.getAttributeName()!=""){
150 errMessage += " and an AttributeName: '" + filters.getAttributeName() + "' and an AttributeValue: '" + filters.getAttributeValue() + "'";
151 }
152 }
153 else{
154 errMessage = "It wasn't found any node with a XPathExpression: '" + xPathExpression + "'";
155 }
156
157 UtilXmlTools::displayErrorMessage("@REMOVE_NODES",errMessage);
158 }
159
160 // Delete all the specified nodes
161 for(int j=0; j<nodesToDeletion.size(); j++){
162 if(!nodesToDeletion[j].parent().remove_child(nodesToDeletion[j])){ // remove the node
163
164 QString errMessage;
165 if(xPathExpression.isEmpty()){
166 errMessage = "Couldn't remove the node with Element '" + filters.getElementName() + "'";
167
168 if(filters.getParentElementName()!=""){
169 errMessage += " and a ParentElement: '" + filters.getParentElementName() + "'";
170 }
171 }
172 else{
173 errMessage = "Couldn't remove the node with the XPathExpression '" + xPathExpression + "'";
174 }
175
176 UtilXmlTools::displayErrorMessage("@REMOVE_NODES",errMessage);
177 }
178 }
179
180 UtilXmlTools::saveXmlFile(filesToProcess[i],this->document, "@REMOVE_NODES");
181
182 nodesToDeletion.clear();
183 }
184
185 UtilXmlTools::displaySuccessMessage(filesToProcess.size(), "@REMOVE_NODES");
186}
187
188void XmlPatch::executeCommandOperation(const QString &commandString){
189
190 QProcess newXmlToolsInstance;
191 QString resultOutput;
192
193 // Avoid infinite fork loops
194 if(commandString.contains(" -p ") || commandString.contains(" --patch-files ")){
195 UtilXmlTools::displayErrorMessage("@COMMAND","Use of --patch-files option is not allowed inside a patch file");
196 }
197
198 newXmlToolsInstance.start(GlobalVars::AppExecutable + " " + commandString);
199 newXmlToolsInstance.waitForFinished(-1); // wait for new instance to finish
200
201 resultOutput=newXmlToolsInstance.readAll();
202
203 if(newXmlToolsInstance.exitCode()!=0){
204 UtilXmlTools::displayErrorMessage("@COMMAND", "An error ocurred:\n" + resultOutput);
205 exit(1);
206 }
207
208 std::cout << "@COMMAND patch operation output:\n"
209 << "########################################################################\n"
210 << resultOutput.toLatin1().constData()
211 << "########################################################################"
212 << std::endl;
213
214 UtilXmlTools::displaySuccessMessage(1,"@COMMAND");
215}
216
217void XmlPatch::executeCustomCommandOperation(const QString &jsString, const QString &filesWildcard){
218
219 QStringList filesToProcess;
220#ifdef _USE_OLD_JS_ENGINE
221 QScriptEngine engine;
222 QScriptValue engineResult; // variable to check for js_errors
223#else
224 QJSEngine engine;
225 QJSValue engineResult; // variable to check for js_errors
226#endif
227
228 QString rexmlString, jsxmlString, currXmlFileString;
229
230
231 QFile rexmlfile(":/resources/libs/rexml.js");
232 QFile jsxmlfile(":/resources/libs/jsxml.js");
233
234 filesToProcess=UtilXmlTools::getAllXmlFilesByWildcard(filesWildcard);
235
236 if(filesToProcess.isEmpty()){
237 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","No XML files were found for the wildcard: "+filesWildcard);
238 }
239
240 rexmlfile.open(QFile::ReadOnly | QFile::Text);
241 jsxmlfile.open(QFile::ReadOnly | QFile::Text);
242
243 rexmlString=QTextStream(&rexmlfile).readAll();
244 jsxmlString=QTextStream(&jsxmlfile).readAll();
245
246 engine.evaluate(rexmlString); // load js libraries
247 engine.evaluate(jsxmlString);
248
249 // Process all XmlFiles
250 for(int i=0; i<filesToProcess.size(); i++){
251
252 if(this->backupsEnabled){
253 UtilXmlTools::backupFile(filesToProcess[i], this->verboseEnabled);
254 }
255
256 QFile currXmlFile(filesToProcess[i]);
257
258 if(!currXmlFile.open(QFile::ReadOnly | QFile::Text)){
259 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Error loading '" + filesToProcess[i] + "' file for read operation.");
260 }
261
262 currXmlFileString=QTextStream(&currXmlFile).readAll();
263
264 currXmlFile.close(); // close reading
265
266 engine.globalObject().setProperty("$xmlData",currXmlFileString);
267
268 engineResult=engine.evaluate(jsString);
269
270#ifdef _USE_OLD_JS_ENGINE
271 if (engine.hasUncaughtException()) {
272 displayJsException(engine,engineResult);
273 }
274#else
275 checkForJsException(engineResult);
276#endif
277
278 if(!currXmlFile.open(QFile::WriteOnly | QFile::Text | QIODevice::Truncate)){
279 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Error loading '" + filesToProcess[i] + "' file for @CUSTOM_CODE write operation.");
280 }
281
282 engineResult=engine.globalObject().property("$xmlData");
283
284#ifdef _USE_OLD_JS_ENGINE
285 if (engine.hasUncaughtException()) {
286 displayJsException(engine,engineResult);
287 }
288#else
289 checkForJsException(engineResult);
290#endif
291
292 QTextStream(&currXmlFile) << engineResult.toString(); // retreive the modified xml by javascript and save it to the file
293 }
294
295 UtilXmlTools::displaySuccessMessage(filesToProcess.size(), "@CUSTOM_CODE");
296}
297
298void XmlPatch::checkPatchVersion(const QString &file, QTextStream &fileStream){
299
300 QString line, patchVersion="";
301
302 // First get the patch version and check it validity
303 while ( !fileStream.atEnd() ){
304 line = fileStream.readLine();
305
306 if(line.startsWith('#')){ // Ignore comments
307 continue;
308 }
309 else if(line.startsWith("@XML_TOOLS")){
310
311 patchVersion=getPatchParameterValue(line,"Version");
312
313 if(!patchVersion.startsWith("2.0")){
314 QString errMessage;
315
316 errMessage = "The current patch version is incompatible with this XmlTools version:\n";
317 errMessage += "Patch file name: '" + file + "'\n";
318 errMessage += "XmlTools version: " + GlobalVars::AppVersion + "\n" + "CurrPatch version: " + patchVersion + "";
319 UtilXmlTools::displayErrorMessage("@XML_TOOLS",errMessage);
320 }
321 break; // We have got what we wanted
322 }
323 }
324
325 if(patchVersion==""){
326 UtilXmlTools::displayErrorMessage("@XML_TOOLS","Patch version not found.");
327 }
328
329}
330
331void XmlPatch::checkAndProcessValidCommands(QTextStream &fileStream){
332
333 QString line, filesWildcard;
334 QString xmlToInsert, command, jsCode;
335 QString xPathExpression;
336 XmlFilter filters;
337
338 // Process the rest of the commands in patch file
339 while ( !fileStream.atEnd() ){
340 line = fileStream.readLine();
341
342 if(line.startsWith('#')){ // Ignore comments
343 continue;
344 }
345 else if(line.startsWith("@ADD_INSIDE_NODES")){
346 xPathExpression=getPatchParameterValue(line,"XPathExpression");
347 filters.setElementName(getPatchParameterValue(line,"ElementName"));
348 filters.setParentElementName(getPatchParameterValue(line,"ParentElementName"));
349 filters.setAttributeName(getPatchParameterValue(line,"AttributeName"));
350 filters.setAttributeValue(getPatchParameterValue(line,"AttributeValue"));
351
352 if(this->forceTargetFilesWildcard!=""){
353 filesWildcard=this->forceTargetFilesWildcard;
354 }
355 else{
356 filesWildcard=getPatchParameterValue(line,"Files");
357 }
358
359 // Check options
360 if(xPathExpression.isEmpty() && filters.getElementName().isEmpty()){
361 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES","ElementName option or XPathExpression option is required.");
362 }
363 else if(!xPathExpression.isEmpty() && !filters.getElementName().isEmpty()){
364 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES","ElementName option and XPathExpression options cannot be used simultaneously.");
365 }
366 if(filters.getAttributeName()!="" && filters.getAttributeValue()==""){
367 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES","AttributeValue option is required if using AttributeName option.");
368 }
369
370 if(filters.getAttributeValue()!="" && filters.getAttributeName()==""){
371 UtilXmlTools::displayErrorMessage("@ADD_INSIDE_NODES","AttributeName option is required if using AttributeValue option.");
372 }
373
374 while ( !fileStream.atEnd() && !line.startsWith("</xml>")){
375 line = fileStream.readLine();
376
377 if(!line.startsWith("<xml>") && !line.startsWith("</xml>")){
378 xmlToInsert += line + "\n";
379 }
380 }
381
382 insertNodesOperation(xmlToInsert,filters,xPathExpression,filesWildcard);
383
384 xmlToInsert.clear();
385 filters.clear();
386 xPathExpression.clear();
387 filesWildcard.clear();
388 }
389 else if(line.startsWith("@REMOVE_NODES")){
390
391 xPathExpression=getPatchParameterValue(line,"XPathExpression");
392 filters.setElementName(getPatchParameterValue(line,"ElementName"));
393 filters.setParentElementName(getPatchParameterValue(line,"ParentElementName"));
394 filters.setAttributeName(getPatchParameterValue(line,"AttributeName"));
395 filters.setAttributeValue(getPatchParameterValue(line,"AttributeValue"));
396
397 if(this->forceTargetFilesWildcard!=""){
398 filesWildcard=this->forceTargetFilesWildcard;
399 }
400 else{
401 filesWildcard=getPatchParameterValue(line,"Files");
402 }
403
404 // Check options
405 if(xPathExpression.isEmpty() && filters.getElementName().isEmpty()){
406 UtilXmlTools::displayErrorMessage("@REMOVE_NODES","ElementName option or XPathExpression option is required.");
407 }
408 else if(!xPathExpression.isEmpty() && !filters.getElementName().isEmpty()){
409 UtilXmlTools::displayErrorMessage("@REMOVE_NODES","ElementName option and XPathExpression options cannot be used simultaneously.");
410 }
411
412 if(filters.getAttributeName()!="" && filters.getAttributeValue()==""){
413 UtilXmlTools::displayErrorMessage("@REMOVE_NODES","AttributeValue option is required if using AttributeName option.");
414 }
415
416 if(filters.getAttributeValue()!="" && filters.getAttributeName()==""){
417 UtilXmlTools::displayErrorMessage("@REMOVE_NODES","AttributeName option is required if using AttributeValue option.");
418 }
419
420 removeNodesOperation(filters,xPathExpression,filesWildcard);
421
422 filters.clear();
423 xPathExpression.clear();
424 filesWildcard.clear();
425 }
426 else if(line.startsWith("@COMMAND")){
427
428 command=getPatchParameterValue(line,"Arguments");
429
430 command.replace("'","\""); //replace apostrophe by quotes, to avoid problems
431
432 executeCommandOperation(command);
433
434 command.clear();
435 }
436 else if(line.startsWith("@CUSTOM_CODE")){
437
438 if(this->forceTargetFilesWildcard!=""){
439 filesWildcard=this->forceTargetFilesWildcard;
440 }
441 else{
442 filesWildcard=getPatchParameterValue(line,"Files");
443 }
444
445 while ( !fileStream.atEnd() && !line.startsWith("</code>")){
446
447 line = fileStream.readLine();
448
449 if(!line.startsWith("<code>") && !line.startsWith("</code>")){
450 jsCode += line + "\n";
451 }
452 }
453
454 executeCustomCommandOperation(jsCode,filesWildcard);
455
456 jsCode.clear();
457 filesWildcard.clear();
458 }
459 }
460}
461
462QString XmlPatch::getPatchParameterValue(const QString& line, QString parameter){
463
464 int startValueIdx, endValueIdx;
465
466 parameter=" "+parameter+" "; // Parameters include a space before and after it's value.
467
468 if(!line.contains(parameter)){
469 if(parameter==" ParentElementName " || parameter==" AttributeName " || parameter==" AttributeValue "
470 || parameter==" ElementName " || parameter==" XPathExpression "){
471 return ""; // not mandatory
472 }
473 parameter.remove(" "); // just remove the space added so it doesn't look weird when outputted to the user
474
475 UtilXmlTools::displayErrorMessage("Read patch file parameter","Couldn't retreive '" + parameter + "' parameter.");
476 }
477
478 startValueIdx=line.indexOf(parameter); // get the position where parameter is defined
479 endValueIdx=line.indexOf("\"",startValueIdx)+1; // get the position where parameter value begins (+1 to ignore mandotory quote)
480
481 startValueIdx=endValueIdx;
482 endValueIdx=line.indexOf("\"",startValueIdx); // get the last mandatory quote of the value
483
484 return line.mid(startValueIdx,endValueIdx-startValueIdx); // return the value of the parameter (is in the middle of the mandatory quotes)
485}
486
487#ifdef _USE_OLD_JS_ENGINE
488void XmlPatch::displayJsException(QScriptEngine &engine, QScriptValue &engineResult){
489 if (engine.hasUncaughtException()) {
490 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Uncaught js exception (user code) at line " +QString::number(engine.uncaughtExceptionLineNumber()) + ":\n" + engineResult.toString());
491 }
492}
493#else
494void XmlPatch::checkForJsException(QJSValue &engineResult){
495 if (engineResult.isError()) {
496 UtilXmlTools::displayErrorMessage("@CUSTOM_CODE","Uncaught js exception (user code):\n" + engineResult.toString());
497 }
498}
499#endif
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