fix libxml xpath bugs

Backend-libXML/Parser.py

@@ -1,3 +1,5 @@
+from typing import Any
+
 from lxml import etree, html
 from io import BytesIO
 
@@ -79,9 +81,11 @@ def xpath(source: str, xpath: str) -> str:
     else:
         result_string = ""
         for e in result:
-            result_string += etree.tostring(e, pretty_print=True).decode() + "\n"
-        return result_string, "node"
-
+            if isinstance(e, etree._Element):
+                result_string += etree.tostring(e, pretty_print=True).decode() + "\n"
+            else:
+                result_string += str(e) + "\n"
+    return result_string, "node"
 
 
 def xsd(source: str, xsd: str) -> bool:

Backend/tools-services/src/main/java/com/r11/tools/xml/Xalan.java

@@ -18,6 +18,10 @@ import javax.xml.transform.stream.StreamSource;
 import javax.xml.validation.Schema;
 import javax.xml.validation.SchemaFactory;
 import javax.xml.validation.Validator;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+import javax.xml.xpath.XPathFactory;
 import java.io.ByteArrayOutputStream;
 import java.io.OutputStreamWriter;
 import java.io.StringReader;
@@ -61,6 +65,13 @@ public class Xalan implements XmlEngine{
         return nodeType == Node.CDATA_SECTION_NODE || nodeType == Node.TEXT_NODE;
     }
 
+    private boolean isAttributeNode(Node n) {
+        if (n == null)
+            return false;
+        short nodeType = n.getNodeType();
+        return nodeType == Node.CDATA_SECTION_NODE || nodeType == Node.ATTRIBUTE_NODE;
+    }
+
     @Override
     public String processXSLT(XMLMultipleFilesData[] data, String transform) throws Exception {
         throw new UnsupportedOperationException("Xalan does not support multiple files XSLT processing");
@@ -101,7 +112,10 @@ public class Xalan implements XmlEngine{
                     for (Node nn = n.getNextSibling(); isTextNode(nn); nn = nn.getNextSibling()) {
                         resultString.append(nn.getNodeValue());
                     }
-                } else {
+                } else if (isAttributeNode(n)) {
+                    resultString.append(n.getNodeValue());
+                }
+                else {
                     ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
                     serializer.transform(new DOMSource(n), new StreamResult(new OutputStreamWriter(outputStream)));
                     resultString.append(outputStream);

Frontend/src/components/xml/XmlOutputFieldComponent.vue

@@ -7,11 +7,12 @@ const props = defineProps(
     {
         tool: {type: String, required: true},
         xml: {type: [String, Array<TabData>], required: true},
-        query: {type: String, required: true}
+        query: {type: String, required: true},
+        activeTabId: {type: Number, required: false}
     }
 )
 
-const emit = defineEmits(["update"]);
+const emit = defineEmits(["update", "update:engine"]);
 
 const result = ref('');
 
@@ -109,21 +110,23 @@ function prepareRequest():Request {
 
 function prepareURL(): string {
     const engineEndpoint = engine.value == "libxml" ? "libxml" : "java";
-   
+
     let tool = props.tool;
-    if (Array.isArray(props.xml) && props.xml.length > 1)
+    if (Array.isArray(props.xml) && props.xml.length > 1 && engine.value == "saxon")
         tool = "multiple/xslt";
 
     return document.location.protocol + "//" + document.location.hostname + "/" + engineEndpoint + "/" + tool;
 }
 
 function selectRequestBodyType() : string {
-    if (Array.isArray(props.xml) && props.xml.length > 1)
-        return prepareRequestBodyMultiXml();
+    if (Array.isArray(props.xml) && (engine.value == "xalan" || engine.value == "libxml"))
+      return prepareRequestBodySingleXml(props.xml.at(props.activeTabId!)!.data)
+    else if (Array.isArray(props.xml) && props.xml.length > 1)
+      return prepareRequestBodyMultiXml();
     else if (Array.isArray(props.xml))
-        return prepareRequestBodySingleXml(props.xml.at(0)!.data);
+      return prepareRequestBodySingleXml(props.xml.at(0)!.data);
     else
-        return prepareRequestBodySingleXml(props.xml!);
+      return prepareRequestBodySingleXml(props.xml!);
 }
 
 function prepareRequestBodySingleXml(data: string):string {
@@ -188,6 +191,10 @@ function emitVersionChange() {
     emit("update", version.value);
 }
 
+function emitEngineChange() {
+  emit("update:engine", engine.value);
+}
+
 function isVersionSelectionAvailable() {
     return !(versionsForCurrentEngine.value.length == 1 && versionsForCurrentEngine.value.at(0) == "N/A");
 }
@@ -202,6 +209,11 @@ function highlightField() {
     return "";
 }
 
+function handleChange() {
+  changeAvailableVersions();
+  emitEngineChange();
+}
+
 </script>
 
 <template>
@@ -209,7 +221,7 @@ function highlightField() {
         <div class="flex place-content-between w-full items-center pb-2">
             <span class="dark:text-white">Result:</span>
             <div class="flex space-x-2 overflow-x-auto">
-                <select v-model="engine" name="engine" @change="changeAvailableVersions()" class="px-3 rounded-full border border-slate-400 bg-white dark:text-slate-100 dark:bg-gray-600">
+                <select v-model="engine" name="engine" @change="handleChange()" class="px-3 rounded-full border border-slate-400 bg-white dark:text-slate-100 dark:bg-gray-600">
                     <option v-for="engine in enginesForCurrentTool" :value="engine">{{ engine }}</option>
                 </select>
                 <select v-model="version" v-if="isVersionSelectionAvailable()" name="version" @change="emitVersionChange()" class="px-3 rounded-full border border-slate-400 bg-white dark:text-slate-100 dark:bg-gray-600">

Frontend/src/components/xml/XmlTabbedInputComponent.vue

@@ -10,11 +10,11 @@ const props = defineProps(
     {
         stylizedName: {type: String, required: true},
         data: {type: Array<TabData>},
-        tabCountLimit: {type: Number, required: false, validator: (value) => typeof value == "number" && value > 0}
+        tabCountLimit: {type: Number, required: false, validator: (value) => typeof value == "number" && value > 0},
+        engine: {type: String, required: true}
     }
 )
-const emit = defineEmits(['update:modelValue'])
-
+const emit = defineEmits(['update:modelValue', 'update:activeTabId'])
 const newTabId = ref(0);
 const activeTabId = ref(0);
 const data = ref('')
@@ -30,6 +30,9 @@ tabs.value.push({
 function sendValue() {
     emit('update:modelValue', tabs.value);
 }
+function emitActiveTab() {
+  emit('update:activeTabId', activeTabId.value);
+}
 
 function updateData(newData: string) {
     data.value = newData;
@@ -73,6 +76,7 @@ function changeActiveTab(id : number) {
     
     tabs.value.at(index)!.data = data.value;
     activeTabId.value = id;
+    emitActiveTab();
     data.value = tabs.value.at(newIndex)!.data;
 
     sendValue();
@@ -128,7 +132,7 @@ function findIndexWithID(id : number) : number {
     <div class="flex flex-col w-full h-1/2 lg:h-1/2 flex-none xl:pr-2 2xl:pr-4 pb-2">
         <div class="flex justify-between mb-2">
             <div class="flex gap-2 overflow-x-auto">
-                <TabComponent @click:activate="changeActiveTab" @click:remove="removeTab" v-for="tab in tabs" :id="tab.id" :isActive="tab.id == activeTabId">{{ tab.name }}</TabComponent>
+                <TabComponent @click:activate="changeActiveTab" @click:remove="removeTab" v-for="tab in tabs" :id="tab.id" :isActive="tab.id == activeTabId" :class="[tab.id !== activeTabId && (props.engine === 'xalan' ? 'disabled-tab' : '' || props.engine === 'libxml' ? 'disabled-tab' : '')]">{{ tab.name }}</TabComponent>
             </div>
             <div class="flex gap-2">
                 <div class="flex items-stretch w-64">

Frontend/src/style.css

@@ -43,3 +43,7 @@
 .tab-active {
     @apply py-2 px-3 h-fit text-slate-700 border-t border-l border-r border-slate-400 rounded-t-2xl bg-gradient-to-r from-blue-400 to-sky-300  dark:text-white dark:from-sky-600 dark:to-sky-800 hover:bg-blue-400
 }
+
+.disabled-tab {
+    @apply py-2 px-3 h-fit text-slate-400 border-t border-l border-r border-slate-300 rounded-t-2xl bg-gradient-to-r from-gray-200 to-gray-300 dark:from-gray-700 dark:to-gray-800 pointer-events-none opacity-50;
+}

Frontend/src/views/XSLTView.vue

@@ -11,6 +11,8 @@ import { ref } from 'vue';
 const xml = ref(new Array<TabData>);
 const query = ref('');
 const version = ref('');
+const engine = ref('')
+const activeTabId = ref(0)
 
 function updateVersion(newVersion: string) {
     version.value = newVersion;
@@ -22,10 +24,10 @@ function updateVersion(newVersion: string) {
     <div id="layout" class="flex flex-row w-full h-full">
         <div class="flex flex-col 2xl:flex-row w-full xl:w-7/12 grow overflow-hide pr-2">
             <div class="flex flex-col w-full 2xl:w-1/2 h-2/3 2xl:h-full flex-none items-center">
-                <xmlTabbedInputComponent stylized-name="XML" :tab-count-limit="3" v-model="xml"></xmlTabbedInputComponent>
+                <xmlTabbedInputComponent stylized-name="XML" v-model:activeTabId="activeTabId" :engine="engine" :tab-count-limit="3" v-model="xml"></xmlTabbedInputComponent>
                 <xmlInputFieldComponent stylized-name="XSLT" :data="query" v-model="query"></xmlInputFieldComponent>
             </div>
-            <xmlOutputFieldComponent tool="xslt" :xml="xml" :query="query" @update="updateVersion"></xmlOutputFieldComponent>
+            <xmlOutputFieldComponent tool="xslt" :xml="xml" :active-tab-id="activeTabId" v-model:engine="engine" :query="query" @update="updateVersion"></xmlOutputFieldComponent>
         </div>
         <TooltipComponent tool-type="xslt" :version="version"></TooltipComponent>
     </div>