wiki: Fix creating deleted pages

[ipfire.org.git] / src / web / wiki.py

#!/usr/bin/python3

import tornado.web

from . import auth
from . import base
from . import ui_modules

class PageHandler(auth.CacheMixin, base.BaseHandler):
	@property
	def action(self):
		return self.get_argument("action", None)

	def write_error(self, status_code, **kwargs):
		# Render a custom page for 404
		if status_code == 404:
			self.render("wiki/404.html", **kwargs)
			return

		# Otherwise raise this to one layer above
		super().write_error(status_code, **kwargs)

	@tornado.web.removeslash
	def get(self, page):
		page = self.backend.wiki.get_page(page)

		# Edit
		if self.action == "edit":
			if not self.current_user:
				raise tornado.web.HTTPError(401)

			# Empty page if it was deleted
			if page and page.was_deleted():
				page = None

			# Render login
			return self.render("wiki/edit.html", page=page)

		# If the page does not exist, we send 404
		if not page or page.was_deleted():
			raise tornado.web.HTTPError(404)

		# Fetch the latest revision
		latest_revision = page.get_latest_revision()

		# Render page
		self.render("wiki/page.html", page=page, latest_revision=latest_revision)

	@tornado.web.authenticated
	def post(self, page):
		content = self.get_argument("content", None)
		changes = self.get_argument("changes")

		# Create a new page in the database
		with self.db.transaction():
			page = self.backend.wiki.create_page(page,
				self.current_user, content, changes=changes, address=self.get_remote_ip())

		# Redirect back
		if page.was_deleted():
			self.redirect("/")
		else:
			self.redirect(page.url)


class SearchHandler(auth.CacheMixin, base.BaseHandler):
	@base.blacklisted
	def get(self):
		q = self.get_argument("q")

		pages = self.backend.wiki.search(q, limit=50)
		if not pages:
			raise tornado.web.HTTPError(404, "Nothing found")

		self.render("wiki/search-results.html", q=q, pages=pages)


class RecentChangesHandler(auth.CacheMixin, base.BaseHandler):
	def get(self):
		recent_changes = self.backend.wiki.get_recent_changes(limit=50)

		self.render("wiki/recent-changes.html", recent_changes=recent_changes)


class WikiListModule(ui_modules.UIModule):
	def render(self, pages, show_breadcrumbs=True, show_changes=False):
		return self.render_string("wiki/modules/list.html",
			pages=pages, show_breadcrumbs=show_breadcrumbs, show_changes=show_changes)


class WikiNavbarModule(ui_modules.UIModule):
	def render(self, page, suffix=None):
		breadcrumbs = self.backend.wiki.make_breadcrumbs(page.url)

		return self.render_string("wiki/modules/navbar.html",
			breadcrumbs=breadcrumbs, page_title=page.title, suffix=suffix)