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Un-revert Jinja2 fix #12313

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Mar 28, 2022
Merged

Un-revert Jinja2 fix #12313

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88be52c
Revert "Revert "Replace instances of deprecated `Jinja2.Markup` with …
babolivier Mar 28, 2022
9c20e49
Pin Jinja2 to ~=3.0
babolivier Mar 28, 2022
2be9bdb
Changelog
babolivier Mar 28, 2022
66809d7
Explain better
babolivier Mar 28, 2022
4b9bb6c
Apply suggestions from code review
babolivier Mar 28, 2022
77e2553
Update synapse/python_dependencies.py
babolivier Mar 28, 2022
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1 change: 1 addition & 0 deletions changelog.d/12313.misc
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix compatibility with the recently-released Jinja 3.1.
9 changes: 5 additions & 4 deletions synapse/push/mailer.py
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Expand Up @@ -18,6 +18,7 @@

import bleach
import jinja2
from markupsafe import Markup

from synapse.api.constants import EventTypes, Membership, RoomTypes
from synapse.api.errors import StoreError
Expand Down Expand Up @@ -867,7 +868,7 @@ def _make_unsubscribe_link(
)


def safe_markup(raw_html: str) -> jinja2.Markup:
def safe_markup(raw_html: str) -> Markup:
"""
Sanitise a raw HTML string to a set of allowed tags and attributes, and linkify any bare URLs.
Expand All @@ -877,7 +878,7 @@ def safe_markup(raw_html: str) -> jinja2.Markup:
Returns:
A Markup object ready to safely use in a Jinja template.
"""
return jinja2.Markup(
return Markup(
bleach.linkify(
bleach.clean(
raw_html,
Expand All @@ -891,7 +892,7 @@ def safe_markup(raw_html: str) -> jinja2.Markup:
)


def safe_text(raw_text: str) -> jinja2.Markup:
def safe_text(raw_text: str) -> Markup:
"""
Sanitise text (escape any HTML tags), and then linkify any bare URLs.
Expand All @@ -901,7 +902,7 @@ def safe_text(raw_text: str) -> jinja2.Markup:
Returns:
A Markup object ready to safely use in a Jinja template.
"""
return jinja2.Markup(
return Markup(
bleach.linkify(bleach.clean(raw_text, tags=[], attributes=[], strip=False))
)

Expand Down
6 changes: 4 additions & 2 deletions synapse/python_dependencies.py
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Expand Up @@ -74,8 +74,10 @@
# Note: 21.1.0 broke `/sync`, see #9936
"attrs>=19.2.0,!=21.1.0",
"netaddr>=0.7.18",
# Jinja2 3.1.0 removes the deprecated jinja2.Markup class, which we rely on.
"Jinja2<3.1.0",
# Jinja 2.x is incompatible with MarkupSafe>=2.1. To ensure that admins do not
# end up with a broken installation, with recent MarkupSafe but old Jinja, we
# add a lower bound to the Jinja2 dependency.
"Jinja2>=3.0",
"bleach>=1.4.3",
# We use `ParamSpec`, which was added in `typing-extensions` 3.10.0.0.
"typing-extensions>=3.10.0",
Expand Down