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-rw-r--r--MANIFEST.in2
-rw-r--r--changelog.d/4052.feature12
-rw-r--r--docker/conf/homeserver.yaml4
-rw-r--r--synapse/config/emailconfig.py36
-rw-r--r--synapse/push/mailer.py5
-rw-r--r--synapse/res/templates/mail-Vector.css (renamed from res/templates/mail-Vector.css)0
-rw-r--r--synapse/res/templates/mail.css (renamed from res/templates/mail.css)0
-rw-r--r--synapse/res/templates/notif.html (renamed from res/templates/notif.html)0
-rw-r--r--synapse/res/templates/notif.txt (renamed from res/templates/notif.txt)0
-rw-r--r--synapse/res/templates/notif_mail.html (renamed from res/templates/notif_mail.html)0
-rw-r--r--synapse/res/templates/notif_mail.txt (renamed from res/templates/notif_mail.txt)0
-rw-r--r--synapse/res/templates/room.html (renamed from res/templates/room.html)0
-rw-r--r--synapse/res/templates/room.txt (renamed from res/templates/room.txt)0
13 files changed, 53 insertions, 6 deletions
diff --git a/MANIFEST.in b/MANIFEST.in
index c6a37ac685..25cdf0a61b 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -12,12 +12,12 @@ recursive-include synapse/storage/schema *.sql
 recursive-include synapse/storage/schema *.py
 
 recursive-include docs *
-recursive-include res *
 recursive-include scripts *
 recursive-include scripts-dev *
 recursive-include synapse *.pyi
 recursive-include tests *.py
 
+recursive-include synapse/res *
 recursive-include synapse/static *.css
 recursive-include synapse/static *.gif
 recursive-include synapse/static *.html
diff --git a/changelog.d/4052.feature b/changelog.d/4052.feature
new file mode 100644
index 0000000000..0c01f06880
--- /dev/null
+++ b/changelog.d/4052.feature
@@ -0,0 +1,12 @@
+Ship the example email templates as part of the package
+
+**Note**: if you deploy your Synapse instance from a git checkout or a github
+snapshot URL, then this means that the example email templates will no longer
+be installed in `res/templates`. If you have email notifications enabled, you
+should ensure that `email.template_dir` is either configured to point at a
+directory where you have installed customised templates, or leave it unset to
+use the default templates.
+
+The configuration parser will try to detect the situation where
+`email.template_dir` is incorrectly set to `res/templates` and do the right
+thing, but will warn about this.
\ No newline at end of file
diff --git a/docker/conf/homeserver.yaml b/docker/conf/homeserver.yaml
index cfe88788f2..a38b929f50 100644
--- a/docker/conf/homeserver.yaml
+++ b/docker/conf/homeserver.yaml
@@ -211,7 +211,9 @@ email:
    require_transport_security: False
    notif_from: "{{ SYNAPSE_SMTP_FROM or "hostmaster@" + SYNAPSE_SERVER_NAME }}"
    app_name: Matrix
-   template_dir: res/templates
+   # if template_dir is unset, uses the example templates that are part of
+   # the Synapse distribution.
+   #template_dir: res/templates
    notif_template_html: notif_mail.html
    notif_template_text: notif_mail.txt
    notif_for_new_users: True
diff --git a/synapse/config/emailconfig.py b/synapse/config/emailconfig.py
index fe156b6930..e2582cfecc 100644
--- a/synapse/config/emailconfig.py
+++ b/synapse/config/emailconfig.py
@@ -13,11 +13,25 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import print_function
+
 # This file can't be called email.py because if it is, we cannot:
 import email.utils
+import logging
+import os
+import sys
+import textwrap
 
 from ._base import Config
 
+logger = logging.getLogger(__name__)
+
+TEMPLATE_DIR_WARNING = """\
+WARNING: The email notifier is configured to look for templates in '%(template_dir)s',
+but no templates could be found there. We will fall back to using the example templates;
+to get rid of this warning, leave 'email.template_dir' unset.
+"""
+
 
 class EmailConfig(Config):
     def read_config(self, config):
@@ -38,7 +52,6 @@ class EmailConfig(Config):
                 "smtp_host",
                 "smtp_port",
                 "notif_from",
-                "template_dir",
                 "notif_template_html",
                 "notif_template_text",
             ]
@@ -62,9 +75,24 @@ class EmailConfig(Config):
             self.email_smtp_host = email_config["smtp_host"]
             self.email_smtp_port = email_config["smtp_port"]
             self.email_notif_from = email_config["notif_from"]
-            self.email_template_dir = email_config["template_dir"]
             self.email_notif_template_html = email_config["notif_template_html"]
             self.email_notif_template_text = email_config["notif_template_text"]
+
+            self.email_template_dir = email_config.get("template_dir")
+
+            # backwards-compatibility hack
+            if (
+                self.email_template_dir == "res/templates"
+                and not os.path.isfile(
+                    os.path.join(self.email_template_dir, self.email_notif_template_text)
+                )
+            ):
+                t = TEMPLATE_DIR_WARNING % {
+                    "template_dir": self.email_template_dir,
+                }
+                print(textwrap.fill(t, width=80) + "\n", file=sys.stderr)
+                self.email_template_dir = None
+
             self.email_notif_for_new_users = email_config.get(
                 "notif_for_new_users", True
             )
@@ -113,7 +141,9 @@ class EmailConfig(Config):
         #   require_transport_security: False
         #   notif_from: "Your Friendly %(app)s Home Server <noreply@example.com>"
         #   app_name: Matrix
-        #   template_dir: res/templates
+        #   # if template_dir is unset, uses the example templates that are part of
+        #   # the Synapse distribution.
+        #   #template_dir: res/templates
         #   notif_template_html: notif_mail.html
         #   notif_template_text: notif_mail.txt
         #   notif_for_new_users: True
diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py
index 1a5a10d974..b9dcfee740 100644
--- a/synapse/push/mailer.py
+++ b/synapse/push/mailer.py
@@ -528,7 +528,10 @@ def load_jinja2_templates(config):
     """
     logger.info("loading jinja2")
 
-    loader = jinja2.FileSystemLoader(config.email_template_dir)
+    if config.email_template_dir:
+        loader = jinja2.FileSystemLoader(config.email_template_dir)
+    else:
+        loader = jinja2.PackageLoader('synapse', 'res/templates')
     env = jinja2.Environment(loader=loader)
     env.filters["format_ts"] = format_ts_filter
     env.filters["mxc_to_http"] = _create_mxc_to_http_filter(config)
diff --git a/res/templates/mail-Vector.css b/synapse/res/templates/mail-Vector.css
index 6a3e36eda1..6a3e36eda1 100644
--- a/res/templates/mail-Vector.css
+++ b/synapse/res/templates/mail-Vector.css
diff --git a/res/templates/mail.css b/synapse/res/templates/mail.css
index 5ab3e1b06d..5ab3e1b06d 100644
--- a/res/templates/mail.css
+++ b/synapse/res/templates/mail.css
diff --git a/res/templates/notif.html b/synapse/res/templates/notif.html
index 88b921ca9c..88b921ca9c 100644
--- a/res/templates/notif.html
+++ b/synapse/res/templates/notif.html
diff --git a/res/templates/notif.txt b/synapse/res/templates/notif.txt
index a37bee9833..a37bee9833 100644
--- a/res/templates/notif.txt
+++ b/synapse/res/templates/notif.txt
diff --git a/res/templates/notif_mail.html b/synapse/res/templates/notif_mail.html
index fcdb3109fe..fcdb3109fe 100644
--- a/res/templates/notif_mail.html
+++ b/synapse/res/templates/notif_mail.html
diff --git a/res/templates/notif_mail.txt b/synapse/res/templates/notif_mail.txt
index 24843042a5..24843042a5 100644
--- a/res/templates/notif_mail.txt
+++ b/synapse/res/templates/notif_mail.txt
diff --git a/res/templates/room.html b/synapse/res/templates/room.html
index 723c222d25..723c222d25 100644
--- a/res/templates/room.html
+++ b/synapse/res/templates/room.html
diff --git a/res/templates/room.txt b/synapse/res/templates/room.txt
index 84648c710e..84648c710e 100644
--- a/res/templates/room.txt
+++ b/synapse/res/templates/room.txt