diff --git a/changelog.d/4106.removal b/changelog.d/4106.removal
new file mode 100644
index 0000000000..7e63208daa
--- /dev/null
+++ b/changelog.d/4106.removal
@@ -0,0 +1 @@
+The disused and un-specced identicon generator has been removed.
diff --git a/scripts-dev/make_identicons.pl b/scripts-dev/make_identicons.pl
deleted file mode 100755
index cbff63e298..0000000000
--- a/scripts-dev/make_identicons.pl
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/usr/bin/env perl
-
-use strict;
-use warnings;
-
-use DBI;
-use DBD::SQLite;
-use JSON;
-use Getopt::Long;
-
-my $db; # = "homeserver.db";
-my $server = "http://localhost:8008";
-my $size = 320;
-
-GetOptions("db|d=s", \$db,
- "server|s=s", \$server,
- "width|w=i", \$size) or usage();
-
-usage() unless $db;
-
-my $dbh = DBI->connect("dbi:SQLite:dbname=$db","","") || die $DBI::errstr;
-
-my $res = $dbh->selectall_arrayref("select token, name from access_tokens, users where access_tokens.user_id = users.id group by user_id") || die $DBI::errstr;
-
-foreach (@$res) {
- my ($token, $mxid) = ($_->[0], $_->[1]);
- my ($user_id) = ($mxid =~ m/@(.*):/);
- my ($url) = $dbh->selectrow_array("select avatar_url from profiles where user_id=?", undef, $user_id);
- if (!$url || $url =~ /#auto$/) {
- `curl -s -o tmp.png "$server/_matrix/media/v1/identicon?name=${mxid}&width=$size&height=$size"`;
- my $json = `curl -s -X POST -H "Content-Type: image/png" -T "tmp.png" $server/_matrix/media/v1/upload?access_token=$token`;
- my $content_uri = from_json($json)->{content_uri};
- `curl -X PUT -H "Content-Type: application/json" --data '{ "avatar_url": "${content_uri}#auto"}' $server/_matrix/client/api/v1/profile/${mxid}/avatar_url?access_token=$token`;
- }
-}
-
-sub usage {
- die "usage: ./make-identicons.pl\n\t-d database [e.g. homeserver.db]\n\t-s homeserver (default: http://localhost:8008)\n\t-w identicon size in pixels (default 320)";
-}
\ No newline at end of file
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py
index 7b4549223f..d2beb275cf 100644
--- a/synapse/handlers/register.py
+++ b/synapse/handlers/register.py
@@ -256,9 +256,6 @@ class RegistrationHandler(BaseHandler):
except Exception as e:
logger.error("Failed to join new user to %r: %r", r, e)
- # We used to generate default identicons here, but nowadays
- # we want clients to generate their own as part of their branding
- # rather than there being consistent matrix-wide ones, so we don't.
defer.returnValue((user_id, token))
@defer.inlineCallbacks
diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py
index 943876456b..ca62ee7637 100644
--- a/synapse/python_dependencies.py
+++ b/synapse/python_dependencies.py
@@ -51,7 +51,6 @@ REQUIREMENTS = {
"daemonize>=2.3.1": ["daemonize"],
"bcrypt>=3.1.0": ["bcrypt>=3.1.0"],
"pillow>=3.1.2": ["PIL"],
- "pydenticon>=0.2": ["pydenticon"],
"sortedcontainers>=1.4.4": ["sortedcontainers"],
"psutil>=2.0.0": ["psutil>=2.0.0"],
"pysaml2>=3.0.0": ["saml2"],
diff --git a/synapse/rest/media/v1/identicon_resource.py b/synapse/rest/media/v1/identicon_resource.py
deleted file mode 100644
index bdbd8d50dd..0000000000
--- a/synapse/rest/media/v1/identicon_resource.py
+++ /dev/null
@@ -1,68 +0,0 @@
-# Copyright 2015, 2016 OpenMarket Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from pydenticon import Generator
-
-from twisted.web.resource import Resource
-
-from synapse.http.servlet import parse_integer
-
-FOREGROUND = [
- "rgb(45,79,255)",
- "rgb(254,180,44)",
- "rgb(226,121,234)",
- "rgb(30,179,253)",
- "rgb(232,77,65)",
- "rgb(49,203,115)",
- "rgb(141,69,170)"
-]
-
-BACKGROUND = "rgb(224,224,224)"
-SIZE = 5
-
-
-class IdenticonResource(Resource):
- isLeaf = True
-
- def __init__(self):
- Resource.__init__(self)
- self.generator = Generator(
- SIZE, SIZE, foreground=FOREGROUND, background=BACKGROUND,
- )
-
- def generate_identicon(self, name, width, height):
- v_padding = width % SIZE
- h_padding = height % SIZE
- top_padding = v_padding // 2
- left_padding = h_padding // 2
- bottom_padding = v_padding - top_padding
- right_padding = h_padding - left_padding
- width -= v_padding
- height -= h_padding
- padding = (top_padding, bottom_padding, left_padding, right_padding)
- identicon = self.generator.generate(
- name, width, height, padding=padding
- )
- return identicon
-
- def render_GET(self, request):
- name = "/".join(request.postpath)
- width = parse_integer(request, "width", default=96)
- height = parse_integer(request, "height", default=96)
- identicon_bytes = self.generate_identicon(name, width, height)
- request.setHeader(b"Content-Type", b"image/png")
- request.setHeader(
- b"Cache-Control", b"public,max-age=86400,s-maxage=86400"
- )
- return identicon_bytes
diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py
index 08b1867fab..d6c5f07af0 100644
--- a/synapse/rest/media/v1/media_repository.py
+++ b/synapse/rest/media/v1/media_repository.py
@@ -45,7 +45,6 @@ from ._base import FileInfo, respond_404, respond_with_responder
from .config_resource import MediaConfigResource
from .download_resource import DownloadResource
from .filepath import MediaFilePaths
-from .identicon_resource import IdenticonResource
from .media_storage import MediaStorage
from .preview_url_resource import PreviewUrlResource
from .storage_provider import StorageProviderWrapper
@@ -769,7 +768,6 @@ class MediaRepositoryResource(Resource):
self.putChild(b"thumbnail", ThumbnailResource(
hs, media_repo, media_repo.media_storage,
))
- self.putChild(b"identicon", IdenticonResource())
if hs.config.url_preview_enabled:
self.putChild(b"preview_url", PreviewUrlResource(
hs, media_repo, media_repo.media_storage,
|