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Write Genshi templates in Trac wiki pages

Project description


The GenshiMacro allows you to write and render Genshi templates directly in wiki pages with a new Genshi processor.

Your templates will have access to the request as req, which can be useful for tasks like URL generation, rendering form tokens for POST requests, and checking for a logged-in user.

Note: no security considerations whatsoever went into the making of this plugin. It might be a terrible idea. Trac core dev Remy Blank said:

> Genshi templates allow executing arbitrary Python code. So you basically
> give users who can insert the macro anywhere (wiki page, ticket comment,
> etc) permission to act as the user running Trac, including running run
> any shell command.

  import os
  os.system("rm /path/to/env/db/trac.db")
> So my advice is, only enable this macro on sites where you trust *all*
> users who can edit *any* wiki text with the web server's account.

Configuration and Usage

To use the plugin, install it in your Trac environment and enable its components in trac.ini:

genshimacro.* = enabled

You can then write Genshi templates directly in wiki pages like so:

<div xmlns:py="">
  <py:when test="req.session.authenticated">
   <form method="POST" action="${req.href.newticket()}">
    <input type="text" name="field_summary" placeholder="My new ticket"
           id="field-summary" />
    <input type="hidden" name="__FORM_TOKEN" value="${req.form_token}" />
    <input type="submit" />
   <b>To file a new ticket, you'll need to
      <a href="${req.href.login()}">log in</a> or
      <a href="${req.href.register()}">create an account</a>

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