gitlabhq/app/models/key.rb

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# == Schema Information
#
# Table name: keys
#
# id :integer not null, primary key
# user_id :integer
# created_at :datetime not null
# updated_at :datetime not null
# key :text
# title :string(255)
# identifier :string(255)
# project_id :integer
#
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require 'digest/md5'
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class Key < ActiveRecord::Base
belongs_to :user
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belongs_to :project
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attr_accessible :key, :title
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before_validation :strip_white_space
before_save :set_identifier
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validates :title, presence: true, length: { within: 0..255 }
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validates :key, presence: true, length: { within: 0..5000 }, format: { :with => /ssh-.{3} / }
validate :unique_key, :fingerprintable_key
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delegate :name, :email, to: :user, prefix: true
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def strip_white_space
self.key = self.key.strip unless self.key.blank?
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end
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def unique_key
query = Key.where(key: key)
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query = query.where('(project_id IS NULL OR project_id = ?)', project_id) if project_id
if (query.count > 0)
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errors.add :key, 'already exist.'
end
end
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def fingerprintable_key
return true unless key # Don't test if there is no key.
# `ssh-keygen -lf /dev/stdin <<< "#{key}"` errors with: redirection unexpected
file = Tempfile.new('key_file')
begin
file.puts key
file.rewind
fingerprint_output = `ssh-keygen -lf #{file.path} 2>&1` # Catch stderr.
ensure
file.close
file.unlink # deletes the temp file
end
errors.add(:key, "can't be fingerprinted") if fingerprint_output.match("failed")
end
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def set_identifier
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if is_deploy_key
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self.identifier = "deploy_#{Digest::MD5.hexdigest(key)}"
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else
self.identifier = "#{user.identifier}_#{Time.now.to_i}"
end
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end
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def is_deploy_key
true if project_id
end
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# projects that has this key
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def projects
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if is_deploy_key
[project]
else
user.projects
end
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end
def last_deploy?
Key.where(identifier: identifier).count == 0
end
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end