discourse/lib/s3.rb

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module S3
def self.store_file(file, sha1, image_info, upload_id)
S3.check_missing_site_settings
directory = S3.get_or_create_directory(SiteSetting.s3_upload_bucket)
remote_filename = "#{upload_id}#{sha1}.#{image_info.type}"
# if this fails, it will throw an exception
file = S3.upload(file, remote_filename, directory)
return "//#{SiteSetting.s3_upload_bucket}.s3.amazonaws.com/#{remote_filename}"
end
def self.remove_file(url)
S3.check_missing_site_settings
directory = S3.get_or_create_directory(SiteSetting.s3_upload_bucket)
file = S3.destroy(url, directory)
end
def self.check_missing_site_settings
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raise Discourse::SiteSettingMissing.new("s3_upload_bucket") if SiteSetting.s3_upload_bucket.blank?
raise Discourse::SiteSettingMissing.new("s3_access_key_id") if SiteSetting.s3_access_key_id.blank?
raise Discourse::SiteSettingMissing.new("s3_secret_access_key") if SiteSetting.s3_secret_access_key.blank?
end
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def self.get_or_create_directory(name)
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@fog_loaded = require 'fog' unless @fog_loaded
options = S3.generate_options
fog = Fog::Storage.new(options)
directory = fog.directories.get(name)
directory = fog.directories.create(key: name) unless directory
directory
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end
def self.generate_options
options = {
provider: 'AWS',
aws_access_key_id: SiteSetting.s3_access_key_id,
aws_secret_access_key: SiteSetting.s3_secret_access_key
}
options[:region] = SiteSetting.s3_region unless SiteSetting.s3_region.empty?
options
end
def self.upload(file, name, directory)
directory.files.create(
key: name,
public: true,
body: file.tempfile,
content_type: file.content_type
)
end
def self.destroy(name, directory)
directory.files.destroy(key: name)
end
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end