How can I convert XML to HTML?

Question

I try to get a HTML page from Atlassian Confluence API but it returns a context like this. How can I convert these to standard HTML tags?

<p style="text-align: center;">&nbsp;</p>
    <p><span style="color: rgb(153,153,153);"><br /></span></p>
    <h2><ac:image><ri:attachment ri:filename="welcome.png" /></ac:image><br />&nbsp; <span style="color: rgb(128,128,128);">With Confluence it is easy to create, edit and share content with your team. Choose a topic below to start learning how.</span></h2>
    <h2><span style="color: rgb(0,0,128);"><br /></span></h2>
    <ol>
        <li><span style="color: rgb(0,0,128);"><ac:link><ri:page ri:content-title="What is Confluence? (step 1 of 9)" /><ac:link-body>What is Confluence?<br /><br /></ac:link-body></ac:link></span></li>
        <li><span style="color: rgb(0,0,128);"><ac:link><ri:page ri:content-title="A quick look at the editor (step 2 of 9)" /><ac:plain-text-link-body><![CDATA[A quick look at the editor]]></ac:plain-text-link-body></ac:link><br />&nbsp;</span></li>
        <li><span style="color: rgb(0,0,128);"><ac:link><ri:page ri:content-title="Let's edit this page (step 3 of 9)" /><ac:plain-text-link-body><![CDATA[Let's edit this page]]></ac:plain-text-link-body></ac:link><br /><br /></span></li>
        <li><span style="color: rgb(0,0,128);"><ac:link><ri:page ri:content-title="Prettify the page with an image (step 4 of 9)" /><ac:link-body>Prettify the page with an image<br /><br /></ac:link-body></ac:link></span></li>
        <li><span style="color: rgb(0,0,128);"><ac:link><ri:page ri:content-title="Get serious with a table (step 5 of 9)" /><ac:link-body>Get serious with a table<br /></ac:link-body></ac:link></span><span style="color: rgb(0,0,128);">&nbsp;</span></li>
        <li><span style="color: rgb(0,0,128);"><ac:link><ri:page ri:content-title="Lay out your page (step 6 of 9)" /><ac:plain-text-link-body><![CDATA[Lay out your page]]></ac:plain-text-link-body></ac:link>&nbsp;<br /><br /></span></li>
        <li><ac:link><ri:page ri:content-title="Learn the wonders of autoconvert (step 7 of 9)" /><ac:plain-text-link-body><![CDATA[Learn the wonders of autoconvert]]></ac:plain-text-link-body></ac:link>&nbsp;<br /><br /></li>
        <li><ac:link><ri:page ri:content-title="Tell people what you think in a comment (step 8 of 9)" /><ac:plain-text-link-body><![CDATA[Tell people what you think in a comment]]></ac:plain-text-link-body></ac:link>&nbsp;<br /><br /></li>
        <li><ac:link><ri:page ri:content-title="Share your page with a team member (step 9 of 9)" /><ac:plain-text-link-body><![CDATA[Share your page with a team member]]></ac:plain-text-link-body></ac:link><br /><br /></li>
        <li><a href="http://directory.apache.org">Apache Directory</a></li>
    </ol>
    <p><span style="color: rgb(128,128,128);"><br /></span></p>
    <p><span style="color: rgb(128,128,128);"><br /></span></p>
    <p><span style="color: rgb(128,128,128);"><br /></span></p><p style="text-align: right;">&nbsp; &nbsp; &nbsp;&nbsp;</p>     

Answer 1

<ac:image> <ri:attachment../> etc. are confluence xhtml macros and will be rendered by confluence itself on page output. you have to call a render method of the confluence api to get that to transformed html.

Confluence offers you a function for that in the confluence remote SOAP API -> Page -> Management:

String renderContent(String token, String spaceKey, String pageId, String content)

Answer 2

There is a tool for exporting Confluence pages to HTML. It is called Scroll HTML Exporter.

https://marketplace.atlassian.com/plugins/com.k15t.scroll.scroll-html/server/overview