mirror of
https://github.com/discourse/discourse.git
synced 2024-11-25 04:19:05 +08:00
118 lines
3.6 KiB
Ruby
118 lines
3.6 KiB
Ruby
require 'digest/sha1'
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class Upload < ActiveRecord::Base
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# attr_accessible :title, :body
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belongs_to :user
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belongs_to :topic
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validates_presence_of :filesize
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validates_presence_of :original_filename
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# Create an upload given a user, file and topic
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def self.create_for(user_id, file, topic_id)
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return create_on_imgur(user_id, file, topic_id) if SiteSetting.enable_imgur?
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return create_on_s3(user_id, file, topic_id) if SiteSetting.enable_s3_uploads?
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return create_locally(user_id, file, topic_id)
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end
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# Store uploads on imgur
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def self.create_on_imgur(user_id, file, topic_id)
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@imgur_loaded = require 'imgur' unless @imgur_loaded
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info = Imgur.upload_file(file)
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Upload.create!({
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user_id: user_id,
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topic_id: topic_id,
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original_filename: file.original_filename
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}.merge!(info))
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end
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# Store uploads on s3
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def self.create_on_s3(user_id, file, topic_id)
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@fog_loaded = require 'fog' unless @fog_loaded
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tempfile = file.tempfile
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upload = Upload.new(user_id: user_id,
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topic_id: topic_id,
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filesize: File.size(tempfile),
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original_filename: file.original_filename)
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image_info = FastImage.new(tempfile, raise_on_failure: true)
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blob = file.read
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sha1 = Digest::SHA1.hexdigest(blob)
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Fog.credentials_path = "#{Rails.root}/config/fog_credentials.yml"
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fog = Fog::Storage.new(provider: 'AWS')
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remote_filename = "#{sha1[2..-1]}.#{image_info.type}"
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path = "/uploads/#{sha1[0]}/#{sha1[1]}"
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location = "#{SiteSetting.s3_upload_bucket}#{path}"
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directory = fog.directories.create(key: location)
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file = directory.files.create(key: remote_filename,
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body: tempfile,
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public: true,
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content_type: file.content_type)
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upload.width, upload.height = ImageSizer.resize(*image_info.size)
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upload.url = "//#{SiteSetting.s3_upload_bucket}.s3.amazonaws.com#{path}/#{remote_filename}"
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upload.save
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upload
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end
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def self.create_locally(user_id, file, topic_id)
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upload = Upload.create!({
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user_id: user_id,
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topic_id: topic_id,
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url: "",
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filesize: File.size(file.tempfile),
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original_filename: file.original_filename
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})
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# populate the rest of the info
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clean_name = Digest::SHA1.hexdigest("#{Time.now.to_s}#{file.original_filename}")[0,16]
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image_info = FastImage.new(file.tempfile, raise_on_failure: true)
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clean_name += ".#{image_info.type}"
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url_root = "/uploads/#{RailsMultisite::ConnectionManagement.current_db}/#{upload.id}"
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path = "#{Rails.root}/public#{url_root}"
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upload.width, upload.height = ImageSizer.resize(*image_info.size)
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FileUtils.mkdir_p path
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# not using cause mv, cause permissions are no good on move
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File.open("#{path}/#{clean_name}", "wb") do |f|
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f.write File.read(file.tempfile)
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end
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upload.url = Discourse::base_uri + "#{url_root}/#{clean_name}"
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upload.save
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upload
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end
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end
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# == Schema Information
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#
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# Table name: uploads
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#
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# id :integer not null, primary key
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# user_id :integer not null
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# topic_id :integer not null
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# original_filename :string(255) not null
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# filesize :integer not null
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# width :integer
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# height :integer
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# url :string(255) not null
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# created_at :datetime not null
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# updated_at :datetime not null
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#
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# Indexes
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#
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# index_uploads_on_forum_thread_id (topic_id)
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# index_uploads_on_user_id (user_id)
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#
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