130 lines
3.7 KiB
Ruby
130 lines
3.7 KiB
Ruby
# 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 Gitlab::RateLimitHelpers
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include HotlinkInterceptor
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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 :require_non_empty_project, except: :create
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before_action :archive_rate_limit!, only: :archive
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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!
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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
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redirect_to project_path(@project)
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end
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def archive
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return render_404 if html_request?
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set_cache_headers
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return if archive_not_modified?
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send_git_archive @repository, **repo_params
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rescue => 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
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def archive_rate_limit!
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if archive_rate_limit_reached?(current_user, @project)
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render plain: ::Gitlab::RateLimitHelpers::ARCHIVE_RATE_LIMIT_REACHED_MESSAGE, status: :too_many_requests
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end
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end
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def repo_params
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@repo_params ||= { ref: @ref, path: params[:path], format: params[:format], append_sha: @append_sha }
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end
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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'])
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end
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def archive_not_modified?
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# Check response freshness (Last-Modified and ETag)
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# against request If-Modified-Since and If-None-Match conditions.
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request.fresh?(response)
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end
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def archive_metadata
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@archive_metadata ||= @repository.archive_metadata(
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@ref,
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'', # Where archives are stored isn't really important for ETag purposes
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repo_params[:format],
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path: repo_params[:path],
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append_sha: @append_sha
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)
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end
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def cache_max_age(commit_id)
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if @ref == commit_id
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# This is a link to an archive by a commit SHA. That means that the archive
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# is immutable. The only reason to invalidate the cache is if the commit
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# was deleted or if the user lost access to the repository.
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Repository::ARCHIVE_CACHE_TIME_IMMUTABLE
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else
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# A branch or tag points at this archive. That means that the expected archive
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# content may change over time.
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Repository::ARCHIVE_CACHE_TIME
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end
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end
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def assign_append_sha
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@append_sha = params[:append_sha]
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if @ref
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shortname = "#{@project.path}-#{@ref.tr('/', '-')}"
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@append_sha = false if @filename == shortname
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end
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end
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def assign_archive_vars
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if params[:id]
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@ref, @filename = extract_ref_and_filename(params[:id])
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else
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@ref = params[:ref]
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@filename = nil
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end
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rescue InvalidPathError
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render_404
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end
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# path can be of the form:
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# master
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# master/first.zip
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# master/first/second.tar.gz
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# master/first/second/third.zip
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#
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# In the archive case, we know that the last value is always the filename, so we
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# do a greedy match to extract the ref. This avoid having to pull all ref names
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# from Redis.
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def extract_ref_and_filename(id)
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path = id.strip
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data = path.match(/(.*)\/(.*)/)
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if data
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[data[1], data[2]]
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else
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[path, nil]
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end
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end
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end
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Projects::RepositoriesController.prepend_if_ee('EE::Projects::RepositoriesController')
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