I have a XAdES-EPES signature, then I extended the signature to XAdES-T using XAdES-4j. The problem is that in the original signature the QualifyingProperties is:
<xades:QualifyingProperties Id="Signature-b8925056-3e5e-4a39-8e4c-7fc1286b5eb5-QualifyingProperties" Target="#Signature-b8925056-3e5e-4a39-8e4c-7fc1286b5eb5-Signature" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#">
And in the extended signature QualifyingProperties is:
<xades:QualifyingProperties Id="Signature-b8925056-3e5e-4a39-8e4c-7fc1286b5eb5-QualifyingProperties" Target="#Signature-b8925056-3e5e-4a39-8e4c-7fc1286b5eb5-Signature" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#">
How can extend the signature without add xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#" to the QualifyingProperties?
Thanks in advance!
Edited: Until I find a solution, I'm doing:
Element qualifyingProperties = null;
final NodeList nlist = xmlSig.getDocument().getElementsByTagName("xades:QualifyingProperties");
if (nlist.getLength() != 0) {
qualifyingProperties = (Element) nlist.item(0);
qualifyingProperties.removeAttribute("xmlns:xades141");
}
The way xades4j is currently doing the XML serialization always adds that namespace declaration, even if there aren't any elements using it. There's no way to configure that. I'd like to only add it when necessary, but that issue hasn't been tackled yet.
Related
How to make new document and close? Need this to workaround apple automation buggy insanity. What I try is this:
var app = Application('Keynote')
var doc = app.make(new document) // How to write this correctly?
doc.close({saving: 'no'})
AppleScript and JavaScript syntax is completely different. You have to think more in terms of JavaScript
For example JXA doesn't understand make(new).
You have to create an instance from the class name (note the uppercase spelling) and then call make().
Actually the var keywords and the trailing semicolons are not needed.
keynote = Application('Keynote')
keynote.activate()
newDocument = keynote.Document().make()
Within the parentheses of Document() you can pass parameters similar to AppleScript’s with properties for example
newDocument = keynote.Document({
documentTheme: keynote.themes["Gradient"],
width:1920,
height:1080
})
AppleScript’s multiple word properties like document theme are written as one camelCased word.
To close the frontmost document write
keynote.documents[0].close()
I am going to parse some web pages using Java program. For this purpose I wrote a small code for parsing page content by using xpath as selector. For parsing different sites you need to find the appropriate xpath per each site. The problem is for doing that you need an operator to find the write xpath for you. (for example using firepath firefox addon) Suppose you dont know what page you should parse or the number of sites get really big for operator to find right xpath. In this case you need a way for parsing pages without using any selector. (same scenario exist for CSS selector) Or there should be a way to find xpath automatically! I was wondering what is the method of parsing web pages in this way?
Here is the small code which I wrote for this purpose, please feel free to extend that in presenting your solutions.
public downloadHTML(String url) throws IOException{
CleanerProperties props = new CleanerProperties();
// set some properties to non-default values
props.setTranslateSpecialEntities(true);
props.setTransResCharsToNCR(true);
props.setOmitComments(true);
// do parsing
TagNode tagNode = new HtmlCleaner(props).clean(
new URL(url)
);
// serialize to xml file
new PrettyXmlSerializer(props).writeToFile(
tagNode, "c:\\TEMP\\clean.xml", "utf-8"
);
}
public static void testJavaxXpath(String pattern)
throws ParserConfigurationException, SAXException, IOException,
FileNotFoundException, XPathExpressionException {
DocumentBuilder b = DocumentBuilderFactory.newInstance()
.newDocumentBuilder();
org.w3c.dom.Document doc = b.parse(new FileInputStream(
"c:\\TEMP\\clean.xml"));
// Evaluate XPath against Document itself
javax.xml.xpath.XPath xPath = XPathFactory.newInstance().newXPath();
NodeList nodes = (NodeList) xPath.evaluate(pattern,
doc.getDocumentElement(), XPathConstants.NODESET);
for (int i = 0; i < nodes.getLength(); ++i) {
Element e = (Element) nodes.item(i);
System.out.println(e.getFirstChild().getTextContent());
}
}
can any master of jsoup tell me some suggestions to filter html to text/string? I've tried calling text() of Document. But all tags/elements will be filtered. My aim is to filter some specified tags.
i.e: I've html text like:
<div>hello<p>world</div>,<table><tr><td>xxx</td></tr>
to get result:
<div>hello<p>world</div>,xxx
which has filtered tags.
I can't test this right now but I think you want to write a recursive function that steps through the tree and prints each node based on a condition. The following is an example of what it might look like but I expect that you will have to modify it to suit your needs more precisely.
Document doc = JSoup.parse(page_text);
recursive_print(doc.head());
recursive_print(doc.body());
...
private static Set<String> ignore = new HashSet<String>(){{
add("table");
...
}};
public static void recursive_print(Element el){
if(!ignore.contains(el.className()))
System.out.println(el.html());
for(Element child : el.children())
recursive_print(child);
}
You can use Whitelist to achieve this goal. For example:
Whitelist whiteList = new Whitelist();
whiteList.addTags("div", "p", "td");
It means that all other tags will be removed.
This code from Dart worries me:
bool get isTemplate => tagName == 'TEMPLATE' || _isAttributeTemplate;
void _ensureTemplate() {
if (!isTemplate) {
throw new UnsupportedError('$this is not a template.');
}
...
Does this mean that the only way I can modify my document is to make it html5?
What if I want to modify an html4 document and set innerHtml in a div, how do I achieve this?
I am assuming you are asking about the code in dart:html Element?
The method you are referring to is only called by the library itself, and only in methods where isTemplate has to be true, for example this one. If you follow this link, you can also read what other fields/methods work like this.
innerHtml is a field in every subclass of Element which supports it, for example DivElement
Example:
DivElement myDiv1 = new DivElement();
myDiv1.innerHtml = "<p>I am a DIV!</p>";
query("#some_div_id").innerHtml = "<p>Hey, me too!</p>";
I'm trying to create a code snippet to remove all style attributes regardless of tag using HtmlAgilityPack.
Here's my code:
var elements = htmlDoc.DocumentNode.SelectNodes("//*");
if (elements!=null)
{
foreach (var element in elements)
{
element.Attributes.Remove("style");
}
}
However, I'm not getting it to stick? If I look at the element object immediately after Remove("style"). I can see that the style attribute has been removed, but it still appears in the DocumentNode object. :/
I'm feeling a bit stupid, but it seems off to me? Anyone done this using HtmlAgilityPack? Thanks!
Update
I changed my code to the following, and it works properly:
public static void RemoveStyleAttributes(this HtmlDocument html)
{
var elementsWithStyleAttribute = html.DocumentNode.SelectNodes("//#style");
if (elementsWithStyleAttribute!=null)
{
foreach (var element in elementsWithStyleAttribute)
{
element.Attributes["style"].Remove();
}
}
}
Your code snippet seems to be correct - it removes the attributes. The thing is, DocumentNode .InnerHtml(I assume you monitored this property) is a complex property, maybe it get updated after some unknown circumstances and you actually shouldn't use this property to get the document as a string. Instead of it HtmlDocument.Save method for this:
string result = null;
using (StringWriter writer = new StringWriter())
{
htmlDoc.Save(writer);
result = writer.ToString();
}
now result variable holds the string representation of your document.
One more thing: your code may be improved by changing your expression to "//*[#style]" which gets you only elements with style attribute.
Here is a very simple solution
VB.net
element.Attributes.Remove(element.Attributes("style"))
c#
element.Attributes.Remove(element.Attributes["style"])