mirror of
https://git.anonymousland.org/anonymousland/synapse-product.git
synced 2024-12-30 04:36:09 -05:00
221 lines
8.3 KiB
Python
221 lines
8.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014, 2015 matrix.org
|
|
#
|
|
# 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 ._base import Config, ConfigError
|
|
from collections import namedtuple
|
|
|
|
|
|
MISSING_NETADDR = (
|
|
"Missing netaddr library. This is required for URL preview API."
|
|
)
|
|
|
|
MISSING_LXML = (
|
|
"""Missing lxml library. This is required for URL preview API.
|
|
|
|
Install by running:
|
|
pip install lxml
|
|
|
|
Requires libxslt1-dev system package.
|
|
"""
|
|
)
|
|
|
|
|
|
ThumbnailRequirement = namedtuple(
|
|
"ThumbnailRequirement", ["width", "height", "method", "media_type"]
|
|
)
|
|
|
|
|
|
def parse_thumbnail_requirements(thumbnail_sizes):
|
|
""" Takes a list of dictionaries with "width", "height", and "method" keys
|
|
and creates a map from image media types to the thumbnail size, thumbnailing
|
|
method, and thumbnail media type to precalculate
|
|
|
|
Args:
|
|
thumbnail_sizes(list): List of dicts with "width", "height", and
|
|
"method" keys
|
|
Returns:
|
|
Dictionary mapping from media type string to list of
|
|
ThumbnailRequirement tuples.
|
|
"""
|
|
requirements = {}
|
|
for size in thumbnail_sizes:
|
|
width = size["width"]
|
|
height = size["height"]
|
|
method = size["method"]
|
|
jpeg_thumbnail = ThumbnailRequirement(width, height, method, "image/jpeg")
|
|
png_thumbnail = ThumbnailRequirement(width, height, method, "image/png")
|
|
requirements.setdefault("image/jpeg", []).append(jpeg_thumbnail)
|
|
requirements.setdefault("image/gif", []).append(png_thumbnail)
|
|
requirements.setdefault("image/png", []).append(png_thumbnail)
|
|
return {
|
|
media_type: tuple(thumbnails)
|
|
for media_type, thumbnails in requirements.items()
|
|
}
|
|
|
|
|
|
class ContentRepositoryConfig(Config):
|
|
def read_config(self, config):
|
|
self.max_upload_size = self.parse_size(config["max_upload_size"])
|
|
self.max_image_pixels = self.parse_size(config["max_image_pixels"])
|
|
self.max_spider_size = self.parse_size(config["max_spider_size"])
|
|
self.media_store_path = self.ensure_directory(config["media_store_path"])
|
|
self.uploads_path = self.ensure_directory(config["uploads_path"])
|
|
self.dynamic_thumbnails = config["dynamic_thumbnails"]
|
|
self.thumbnail_requirements = parse_thumbnail_requirements(
|
|
config["thumbnail_sizes"]
|
|
)
|
|
self.url_preview_enabled = config.get("url_preview_enabled", False)
|
|
if self.url_preview_enabled:
|
|
try:
|
|
import lxml
|
|
lxml # To stop unused lint.
|
|
except ImportError:
|
|
raise ConfigError(MISSING_LXML)
|
|
|
|
try:
|
|
from netaddr import IPSet
|
|
except ImportError:
|
|
raise ConfigError(MISSING_NETADDR)
|
|
|
|
if "url_preview_ip_range_blacklist" in config:
|
|
self.url_preview_ip_range_blacklist = IPSet(
|
|
config["url_preview_ip_range_blacklist"]
|
|
)
|
|
else:
|
|
raise ConfigError(
|
|
"For security, you must specify an explicit target IP address "
|
|
"blacklist in url_preview_ip_range_blacklist for url previewing "
|
|
"to work"
|
|
)
|
|
|
|
self.url_preview_ip_range_whitelist = IPSet(
|
|
config.get("url_preview_ip_range_whitelist", ())
|
|
)
|
|
|
|
self.url_preview_url_blacklist = config.get(
|
|
"url_preview_url_blacklist", ()
|
|
)
|
|
|
|
def default_config(self, **kwargs):
|
|
media_store = self.default_path("media_store")
|
|
uploads_path = self.default_path("uploads")
|
|
return """
|
|
# Directory where uploaded images and attachments are stored.
|
|
media_store_path: "%(media_store)s"
|
|
|
|
# Directory where in-progress uploads are stored.
|
|
uploads_path: "%(uploads_path)s"
|
|
|
|
# The largest allowed upload size in bytes
|
|
max_upload_size: "10M"
|
|
|
|
# Maximum number of pixels that will be thumbnailed
|
|
max_image_pixels: "32M"
|
|
|
|
# Whether to generate new thumbnails on the fly to precisely match
|
|
# the resolution requested by the client. If true then whenever
|
|
# a new resolution is requested by the client the server will
|
|
# generate a new thumbnail. If false the server will pick a thumbnail
|
|
# from a precalculated list.
|
|
dynamic_thumbnails: false
|
|
|
|
# List of thumbnail to precalculate when an image is uploaded.
|
|
thumbnail_sizes:
|
|
- width: 32
|
|
height: 32
|
|
method: crop
|
|
- width: 96
|
|
height: 96
|
|
method: crop
|
|
- width: 320
|
|
height: 240
|
|
method: scale
|
|
- width: 640
|
|
height: 480
|
|
method: scale
|
|
- width: 800
|
|
height: 600
|
|
method: scale
|
|
|
|
# Is the preview URL API enabled? If enabled, you *must* specify
|
|
# an explicit url_preview_ip_range_blacklist of IPs that the spider is
|
|
# denied from accessing.
|
|
url_preview_enabled: False
|
|
|
|
# List of IP address CIDR ranges that the URL preview spider is denied
|
|
# from accessing. There are no defaults: you must explicitly
|
|
# specify a list for URL previewing to work. You should specify any
|
|
# internal services in your network that you do not want synapse to try
|
|
# to connect to, otherwise anyone in any Matrix room could cause your
|
|
# synapse to issue arbitrary GET requests to your internal services,
|
|
# causing serious security issues.
|
|
#
|
|
# url_preview_ip_range_blacklist:
|
|
# - '127.0.0.0/8'
|
|
# - '10.0.0.0/8'
|
|
# - '172.16.0.0/12'
|
|
# - '192.168.0.0/16'
|
|
# - '100.64.0.0/10'
|
|
# - '169.254.0.0/16'
|
|
#
|
|
# List of IP address CIDR ranges that the URL preview spider is allowed
|
|
# to access even if they are specified in url_preview_ip_range_blacklist.
|
|
# This is useful for specifying exceptions to wide-ranging blacklisted
|
|
# target IP ranges - e.g. for enabling URL previews for a specific private
|
|
# website only visible in your network.
|
|
#
|
|
# url_preview_ip_range_whitelist:
|
|
# - '192.168.1.1'
|
|
|
|
# Optional list of URL matches that the URL preview spider is
|
|
# denied from accessing. You should use url_preview_ip_range_blacklist
|
|
# in preference to this, otherwise someone could define a public DNS
|
|
# entry that points to a private IP address and circumvent the blacklist.
|
|
# This is more useful if you know there is an entire shape of URL that
|
|
# you know that will never want synapse to try to spider.
|
|
#
|
|
# Each list entry is a dictionary of url component attributes as returned
|
|
# by urlparse.urlsplit as applied to the absolute form of the URL. See
|
|
# https://docs.python.org/2/library/urlparse.html#urlparse.urlsplit
|
|
# The values of the dictionary are treated as an filename match pattern
|
|
# applied to that component of URLs, unless they start with a ^ in which
|
|
# case they are treated as a regular expression match. If all the
|
|
# specified component matches for a given list item succeed, the URL is
|
|
# blacklisted.
|
|
#
|
|
# url_preview_url_blacklist:
|
|
# # blacklist any URL with a username in its URI
|
|
# - username: '*'
|
|
#
|
|
# # blacklist all *.google.com URLs
|
|
# - netloc: 'google.com'
|
|
# - netloc: '*.google.com'
|
|
#
|
|
# # blacklist all plain HTTP URLs
|
|
# - scheme: 'http'
|
|
#
|
|
# # blacklist http(s)://www.acme.com/foo
|
|
# - netloc: 'www.acme.com'
|
|
# path: '/foo'
|
|
#
|
|
# # blacklist any URL with a literal IPv4 address
|
|
# - netloc: '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$'
|
|
|
|
# The largest allowed URL preview spidering size in bytes
|
|
max_spider_size: "10M"
|
|
|
|
|
|
""" % locals()
|