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101 lines
3.7 KiB
Python
101 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014, 2015 matrix.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from ._base import Config
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from collections import namedtuple
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ThumbnailRequirement = namedtuple(
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"ThumbnailRequirement", ["width", "height", "method", "media_type"]
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)
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def parse_thumbnail_requirements(thumbnail_sizes):
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""" Takes a list of dictionaries with "width", "height", and "method" keys
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and creates a map from image media types to the thumbnail size, thumnailing
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method, and thumbnail media type to precalculate
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Args:
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thumbnail_sizes(list): List of dicts with "width", "height", and
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"method" keys
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Returns:
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Dictionary mapping from media type string to list of
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ThumbnailRequirement tuples.
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"""
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requirements = {}
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for size in thumbnail_sizes:
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width = size["width"]
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height = size["height"]
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method = size["method"]
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jpeg_thumbnail = ThumbnailRequirement(width, height, method, "image/jpeg")
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png_thumbnail = ThumbnailRequirement(width, height, method, "image/png")
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requirements.setdefault("image/jpeg", []).append(jpeg_thumbnail)
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requirements.setdefault("image/gif", []).append(png_thumbnail)
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requirements.setdefault("image/png", []).append(png_thumbnail)
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return {
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media_type: tuple(thumbnails)
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for media_type, thumbnails in requirements.items()
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}
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class ContentRepositoryConfig(Config):
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def read_config(self, config):
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self.max_upload_size = self.parse_size(config["max_upload_size"])
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self.max_image_pixels = self.parse_size(config["max_image_pixels"])
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self.media_store_path = self.ensure_directory(config["media_store_path"])
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self.uploads_path = self.ensure_directory(config["uploads_path"])
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self.dynamic_thumbnails = config["dynamic_thumbnails"]
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self.thumbnail_requirements = parse_thumbnail_requirements(
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config["thumbnail_sizes"]
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)
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def default_config(self, config_dir_path, server_name):
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media_store = self.default_path("media_store")
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uploads_path = self.default_path("uploads")
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return """
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# Directory where uploaded images and attachments are stored.
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media_store_path: "%(media_store)s"
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# Directory where in-progress uploads are stored.
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uploads_path: "%(uploads_path)s"
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# The largest allowed upload size in bytes
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max_upload_size: "10M"
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# Maximum number of pixels that will be thumbnailed
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max_image_pixels: "32M"
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# Whether to generate new thumbnails on the fly to precisely match
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# the resolution requested by the client. If true then whenever
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# a new resolution is requested by the client the server will
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# generate a new thumbnail. If false the server will pick a thumbnail
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# from a precalcualted list.
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dynamic_thumbnails: false
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# List of thumbnail to precalculate when an image is uploaded.
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thumbnail_sizes:
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- width: 32
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height: 32
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method: crop
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- width: 96
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height: 96
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method: crop
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- width: 320
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height: 240
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method: scale
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- width: 640
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height: 480
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method: scale
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""" % locals()
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