debian-mirror-gitlab/app/controllers/projects/repositories_controller.rb

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# frozen_string_literal: true
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class Projects::RepositoriesController < Projects::ApplicationController
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include ExtractsPath
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include StaticObjectExternalStorage
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include HotlinkInterceptor
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include Gitlab::RepositoryArchiveRateLimiter
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prepend_before_action(only: [:archive]) { authenticate_sessionless_user!(:archive) }
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skip_before_action :default_cache_headers, only: :archive
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# Authorize
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before_action :check_archive_rate_limiting!, only: :archive
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before_action :require_non_empty_project, except: :create
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before_action :intercept_hotlinking!, only: :archive
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before_action :assign_archive_vars, only: :archive
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before_action :assign_append_sha, only: :archive
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before_action :authorize_download_code!
before_action :authorize_admin_project!, only: :create
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before_action :redirect_to_external_storage, only: :archive, if: :static_objects_external_storage_enabled?
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feature_category :source_code_management
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def create
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@project.create_repository unless @project.repository_exists?
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redirect_to project_path(@project)
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end
def archive
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return render_404 if html_request?
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set_cache_headers
return if archive_not_modified?
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send_git_archive @repository, **repo_params
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rescue StandardError => ex
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logger.error("#{self.class.name}: #{ex}")
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git_not_found!
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end
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private
def repo_params
@repo_params ||= { ref: @ref, path: params[:path], format: params[:format], append_sha: @append_sha }
end
def set_cache_headers
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expires_in cache_max_age(archive_metadata['CommitId']), public: Guest.can?(:download_code, project)
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fresh_when(etag: archive_metadata['ArchivePath'])
end
def archive_not_modified?
# Check response freshness (Last-Modified and ETag)
# against request If-Modified-Since and If-None-Match conditions.
request.fresh?(response)
end
def archive_metadata
@archive_metadata ||= @repository.archive_metadata(
@ref,
'', # Where archives are stored isn't really important for ETag purposes
repo_params[:format],
path: repo_params[:path],
append_sha: @append_sha
)
end
def cache_max_age(commit_id)
if @ref == commit_id
# This is a link to an archive by a commit SHA. That means that the archive
# is immutable. The only reason to invalidate the cache is if the commit
# was deleted or if the user lost access to the repository.
Repository::ARCHIVE_CACHE_TIME_IMMUTABLE
else
# A branch or tag points at this archive. That means that the expected archive
# content may change over time.
Repository::ARCHIVE_CACHE_TIME
end
end
def assign_append_sha
@append_sha = params[:append_sha]
if @ref
shortname = "#{@project.path}-#{@ref.tr('/', '-')}"
@append_sha = false if @filename == shortname
end
end
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def assign_archive_vars
if params[:id]
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@ref, @filename = extract_ref_and_filename(params[:id])
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else
@ref = params[:ref]
@filename = nil
end
rescue InvalidPathError
render_404
end
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# path can be of the form:
# master
# master/first.zip
# master/first/second.tar.gz
# master/first/second/third.zip
#
# In the archive case, we know that the last value is always the filename, so we
# do a greedy match to extract the ref. This avoid having to pull all ref names
# from Redis.
def extract_ref_and_filename(id)
path = id.strip
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data = path.match(%r{(.*)/(.*)})
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if data
[data[1], data[2]]
else
[path, nil]
end
end
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def check_archive_rate_limiting!
check_archive_rate_limit!(current_user, @project) do
render(plain: _('This archive has been requested too many times. Try again later.'), status: :too_many_requests)
end
end
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end
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Projects::RepositoriesController.prepend_mod_with('Projects::RepositoriesController')