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webhooks.rb
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webhooks.rb
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require 'active_support/concern'
require 'bitbucket'
require 'git'
require 'github'
require 'gitlab'
module Webhooks
extend ActiveSupport::Concern
HMAC_DIGEST = OpenSSL::Digest.new('sha1')
class_methods do
# Turns a path segment from a webhook request to a URL segment
def urlify_webhook_path_segment(path)
return path.split('/').map { |part| CGI.escape(part) }.join('/')
end
end
def process_github_webhook(user)
# using the secret, see if this is good
body = request.body.read
if user.webhook_secret.nil? || request.headers['X-Hub-Signature'] != "sha1=#{OpenSSL::HMAC.hexdigest(HMAC_DIGEST, user.webhook_secret, body)}"
head :forbidden
return nil, nil
end
case request.headers['X-GitHub-Event']
when 'ping'
render json: { message: 'Webhook successfully configured.' }
return nil, nil
when 'push'
changed_files = Github.info_from_push_event(params)
when 'release'
unless request.request_parameters[:action] == 'published'
render json: { message: "Nothing to do on action '#{request.request_parameters[:action]}'." }
return nil, nil
end
changed_files = Github.info_from_release_event(params)
else
head :not_acceptable
return nil, nil
end
if changed_files.empty?
if request.headers['X-GitHub-Event'] == 'release'
render json: { 'updated_scripts' => [], 'updated_failed' => [], message: 'No scripts found for this release.' }
else
render json: { 'updated_scripts' => [], 'updated_failed' => [], message: 'No commits found in this push.' }
end
return nil, nil
end
inject_script_info(user, changed_files)
return changed_files, params[:repository][:clone_url]
rescue StandardError
Rails.logger.error("Error processing webhook body: #{body}")
raise
end
def process_bitbucket_webhook(user)
if user.webhook_secret.nil? || user.webhook_secret != params[:secret]
head :forbidden
return nil, nil
end
if request.headers['X-Event-Key'] != 'repo:push'
head :not_acceptable
return nil, nil
end
changed_files = Bitbucket.info_from_push_event(params)
if changed_files.empty?
render json: { message: 'No commits found in this push.' }
return nil, nil
end
repo_url = "https://bitbucket.org/#{params[:repository][:full_name]}.git"
inject_script_info(user, changed_files)
return changed_files, repo_url
end
def process_gitlab_webhook(user)
if user.webhook_secret.nil? || user.webhook_secret != request.headers['X-Gitlab-Token']
head :forbidden
return nil, nil
end
case request.headers['X-Gitlab-Event']
when 'Push Hook'
changed_files = Gitlab.info_from_push_event(params)
when 'Release Hook'
changed_files = Gitlab.info_from_release_event(params)
else
head :not_acceptable
return nil, nil
end
if changed_files.empty?
render json: { message: 'No commits found in this push.' }
return nil, nil
end
inject_script_info(user, changed_files)
return changed_files, params[:project][:git_http_url]
end
# Adds scripts and script_attributes keys to changed_files.
# - user
# - changed_files - a Hash of URL to Hash
def inject_script_info(user, changed_files)
# Associate scripts to each file.
changed_files.each do |_file, info|
# Scripts syncing code to this file
info[:scripts] = user.scripts.not_deleted.where(sync_identifier: info[:urls])
# Scripts syncing additional info to this file
info[:script_attributes] = LocalizedScriptAttribute.where(sync_identifier: info[:urls]).joins(script: :authors).where(authors: { user_id: user.id })
end
end
# changed_files: Hash with keys of files names and a value of a Hash with keys:
# - scripts
# - script_attributes
# - commit
# - messages
def process_webhook_changes(changed_files, repo_url, changelog_markup: 'text')
# Forget about any files that changed but are not related to scripts or attributes.
changed_files = changed_files.select { |_filename, info| info[:scripts].any? || info[:script_attributes].any? }
if changed_files.empty?
render json: { 'updated_scripts' => [], 'updated_failed' => [], message: 'No scripts found.' }
return
end
# Get the contents of the files.
begin
Git.get_contents(repo_url, changed_files.transform_values { |info| info[:commit] || info[:ref] }) do |file_path, _commit, content|
changed_files[file_path][:content] = content
end
rescue Git::Exception => e
render json: { 'updated_scripts' => [], 'updated_failed' => changed_files.values.pluck(:scripts).flatten.map(&:url), message: "Could not pull contents from git: #{e}" }
return
end
# Apply the new contents to the DB.
updated_scripts = []
update_failed_scripts = []
changed_files.each do |_filename, info|
contents = info[:content]
info[:scripts].each do |script|
# update sync type to webhook, now that we know this script is affected by it
script.script_sync_type_id = 3
sv = script.script_versions.build(code: contents, changelog: info[:messages].join((changelog_markup == 'markdown') ? "\n\n" : ', '), changelog_markup:)
# Copy previous additional infos and screenshots
last_saved_sv = script.newest_saved_script_version
script.localized_attributes_for('additional_info').each do |la|
sv.build_localized_attribute(la)
end
last_saved_sv.attachments.each { |a| sv.attachments << a.dup }
sv.do_lenient_saving
sv.calculate_all(script.description)
script.apply_from_script_version(sv)
if script.save
updated_scripts << script
else
update_failed_scripts << script
end
end
info[:script_attributes].each do |script_attribute|
script_attribute.attribute_value = contents
if script_attribute.save
updated_scripts << script_attribute.script
else
update_failed_scripts << script_attribute.script
end
end
end
render json: { updated_scripts: updated_scripts.map { |s| script_url(s) }, updated_failed: update_failed_scripts.map { |s| script_url(s) } }
end
end