gitlabhq/lib/gitlab/backend/grack_auth.rb

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module Grack
class Auth < Rack::Auth::Basic
attr_accessor :user, :project
def valid?
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# Authentication with username and password
login, password = @auth.credentials
self.user = User.find_by_email(login) || User.find_by_username(login)
return false unless user.try(:valid_password?, password)
email = user.email
# Set GL_USER env variable
ENV['GL_USER'] = email
# Pass Gitolite update hook
ENV['GL_BYPASS_UPDATE_HOOK'] = "true"
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# Find project by PATH_INFO from env
if m = /^\/([\w\.\/-]+)\.git/.match(@request.path_info).to_a
self.project = Project.find_with_namespace(m.last)
return false unless project
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end
# Git upload and receive
if @request.get?
validate_get_request
elsif @request.post?
validate_post_request
else
false
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end
end
def validate_get_request
can?(user, :download_code, project)
end
def validate_post_request
if @request.path_info.end_with?('git-upload-pack')
can?(user, :download_code, project)
elsif @request.path_info.end_with?('git-receive-pack')
action = if project.protected_branch?(current_ref)
:push_code_to_protected_branches
else
:push_code
end
can?(user, action, project)
else
false
end
end
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def can?(object, action, subject)
abilities.allowed?(object, action, subject)
end
def current_ref
if @env["HTTP_CONTENT_ENCODING"] =~ /gzip/
input = Zlib::GzipReader.new(@request.body).read
else
input = @request.body.read
end
# Need to reset seek point
@request.body.rewind
/refs\/heads\/([\w\.-]+)/.match(input).to_a.first
end
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protected
def abilities
@abilities ||= begin
abilities = Six.new
abilities << Ability
abilities
end
end
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end# Auth
end# Grack