package/python-crossbar: use escape from markupsafe

The last version bump of python-werkzeug v2.1.2 introduced a runtime
issue in python-crossbar since escape from werkzeug has been removed
since werkzeug 2.1.0 [1].

This has been fixed in python-crossbar v24.4.1 but we do not want
to bump this package for the Buildroot release 2022.05. Instead
apply the same change as the upstream commit [2] using escape from
python-markupsafe package.

Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/2520606768

[1] https://github.com/pallets/werkzeug/commit/22d1e9ac13829b83347107a9b4d77072a8e1af6a
[2] https://github.com/crossbario/crossbar/commit/ca8d383f01231e2b3f986e791f215f12f2deee5d

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/python-crossbar/0003-crossbar-webservice-wap-use-markupsafe-instead-of-we.patch

@@ -0,0 +1,40 @@
+From ac5fc826e33492bb0c4283a954389d7fd355fa61 Mon Sep 17 00:00:00 2001
+From: Romain Naour <romain.naour@gmail.com>
+Date: Mon, 30 May 2022 19:38:11 +0200
+Subject: [PATCH] crossbar/webservice/wap: use markupsafe instead of werkzeug
+
+wap.py use escape from werkzeug but it has been removed since
+the version 2.1.0 [1].
+
+Replace with escape from markupsafe like upstream commit [2]
+(wihout other changes).
+
+[1] https://github.com/pallets/werkzeug/commit/22d1e9ac13829b83347107a9b4d77072a8e1af6a
+[2] https://github.com/crossbario/crossbar/commit/ca8d383f01231e2b3f986e791f215f12f2deee5d
+
+Signed-off-by: Romain Naour <romain.naour@gmail.com>
+---
+ crossbar/webservice/wap.py | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/crossbar/webservice/wap.py b/crossbar/webservice/wap.py
+index 825558b1..6daa9b21 100644
+--- a/crossbar/webservice/wap.py
++++ b/crossbar/webservice/wap.py
+@@ -36,7 +36,12 @@ from collections.abc import Mapping, Sequence
+ 
+ from werkzeug.routing import Map, Rule
+ from werkzeug.exceptions import NotFound, MethodNotAllowed
+-from werkzeug.utils import escape
++
++try:
++    # removed in werkzeug 2.1.0
++    from werkzeug.utils import escape
++except ImportError:
++    from markupsafe import escape
+ 
+ from jinja2 import Environment, FileSystemLoader
+ from jinja2.sandbox import SandboxedEnvironment
+-- 
+2.35.3
+

package/python-crossbar/Config.in

@@ -15,6 +15,7 @@ config BR2_PACKAGE_PYTHON_CROSSBAR
 	select BR2_PACKAGE_PYTHON_INCREMENTAL
 	select BR2_PACKAGE_PYTHON_JINJA2
 	select BR2_PACKAGE_PYTHON_LMDB
+	select BR2_PACKAGE_PYTHON_MARKUPSAFE
 	select BR2_PACKAGE_PYTHON_MISTUNE
 	select BR2_PACKAGE_PYTHON_NETADDR
 	select BR2_PACKAGE_PYTHON_PASSLIB