137 lines
3.2 KiB
Ruby
137 lines
3.2 KiB
Ruby
module FileStore
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class BaseStore
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def store_upload(file, upload, content_type = nil)
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path = get_path_for_upload(upload)
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store_file(file, path)
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end
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def store_optimized_image(file, optimized_image)
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path = get_path_for_optimized_image(optimized_image)
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store_file(file, path)
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end
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def store_file(file, path, opts = {})
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not_implemented
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end
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def remove_upload(upload)
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remove_file(upload.url, get_path_for_upload(upload))
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end
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def remove_optimized_image(optimized_image)
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remove_file(optimized_image.url, get_path_for_optimized_image(optimized_image))
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end
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def remove_file(url, path)
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not_implemented
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end
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def has_been_uploaded?(url)
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not_implemented
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end
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def download_url(upload)
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not_implemented
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end
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def cdn_url(url)
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not_implemented
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end
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def absolute_base_url
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not_implemented
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end
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def relative_base_url
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not_implemented
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end
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def external?
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not_implemented
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end
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def internal?
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!external?
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end
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def path_for(upload)
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not_implemented
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end
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def download(upload)
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DistributedMutex.synchronize("download_#{upload.sha1}") do
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filename = "#{upload.sha1}#{File.extname(upload.original_filename)}"
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file = get_from_cache(filename)
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if !file
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max_file_size_kb = [SiteSetting.max_image_size_kb, SiteSetting.max_attachment_size_kb].max.kilobytes
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url = SiteSetting.scheme + ":" + upload.url
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file = FileHelper.download(
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url,
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max_file_size: max_file_size_kb,
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tmp_file_name: "discourse-download",
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follow_redirect: true
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)
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cache_file(file, filename)
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end
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file
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end
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end
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def purge_tombstone(grace_period)
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end
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def get_depth_for(id)
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[0, Math.log(id / 1_000.0, 16).ceil].max
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end
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def get_path_for(type, id, sha, extension)
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depth = get_depth_for(id)
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tree = File.join(*sha[0, depth].split(""), "")
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"#{type}/#{depth + 1}X/#{tree}#{sha}#{extension}"
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end
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def get_path_for_upload(upload)
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get_path_for("original".freeze, upload.id, upload.sha1, upload.extension)
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end
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def get_path_for_optimized_image(optimized_image)
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upload = optimized_image.upload
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extension = "_#{OptimizedImage::VERSION}_#{optimized_image.width}x#{optimized_image.height}#{optimized_image.extension}"
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get_path_for("optimized".freeze, upload.id, upload.sha1, extension)
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end
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CACHE_DIR ||= "#{Rails.root}/tmp/download_cache/"
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CACHE_MAXIMUM_SIZE ||= 500
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def get_cache_path_for(filename)
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"#{CACHE_DIR}#{filename}"
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end
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def get_from_cache(filename)
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path = get_cache_path_for(filename)
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File.open(path) if File.exists?(path)
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end
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def cache_file(file, filename)
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path = get_cache_path_for(filename)
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dir = File.dirname(path)
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FileUtils.mkdir_p(dir) unless Dir[dir].present?
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FileUtils.cp(file.path, path)
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# keep latest 500 files
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`ls -tr #{CACHE_DIR} | head -n +#{CACHE_MAXIMUM_SIZE} | xargs rm -f`
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end
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private
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def not_implemented
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raise "Not implemented."
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end
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end
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end
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