discourse/app/models/remote_theme.rb

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require_dependency 'theme_store/git_importer'
require_dependency 'theme_store/tgz_importer'
require_dependency 'upload_creator'
class RemoteTheme < ActiveRecord::Base
ALLOWED_FIELDS = %w{scss embedded_scss head_tag header after_header body_tag footer}
GITHUB_REGEXP = /^https?:\/\/github\.com\//
GITHUB_SSH_REGEXP = /^git@github\.com:/
has_one :theme
def self.update_tgz_theme(filename, user: Discourse.system_user)
importer = ThemeStore::TgzImporter.new(filename)
importer.import!
theme_info = JSON.parse(importer["about.json"])
theme = Theme.find_by(name: theme_info["name"])
theme ||= Theme.new(user_id: user&.id || -1, name: theme_info["name"])
remote_theme = new
remote_theme.theme = theme
remote_theme.remote_url = ""
remote_theme.update_from_remote(importer, skip_update: true)
theme.save!
theme
ensure
begin
importer.cleanup!
rescue => e
Rails.logger.warn("Failed cleanup remote path #{e}")
end
end
def self.import_theme(url, user = Discourse.system_user, private_key: nil)
importer = ThemeStore::GitImporter.new(url, private_key: private_key)
importer.import!
theme_info = JSON.parse(importer["about.json"])
component = [true, "true"].include?(theme_info["component"])
theme = Theme.new(user_id: user&.id || -1, name: theme_info["name"], component: component)
remote_theme = new
theme.remote_theme = remote_theme
remote_theme.private_key = private_key
remote_theme.remote_url = importer.url
remote_theme.update_from_remote(importer)
theme.save!
theme
ensure
begin
importer.cleanup!
rescue => e
Rails.logger.warn("Failed cleanup remote git #{e}")
end
end
def self.out_of_date_themes
self.joins("JOIN themes ON themes.remote_theme_id = remote_themes.id")
.where.not(remote_url: "")
.where("commits_behind > 0 OR remote_version <> local_version")
.pluck("themes.name", "themes.id")
end
def update_remote_version
importer = ThemeStore::GitImporter.new(remote_url, private_key: private_key)
importer.import!
self.updated_at = Time.zone.now
self.remote_version, self.commits_behind = importer.commits_since(local_version)
end
def update_from_remote(importer = nil, skip_update: false)
return unless remote_url
cleanup = false
unless importer
cleanup = true
importer = ThemeStore::GitImporter.new(remote_url, private_key: private_key)
importer.import!
end
theme_info = JSON.parse(importer["about.json"])
theme_info["assets"]&.each do |name, relative_path|
if path = importer.real_path(relative_path)
upload = UploadCreator.new(File.open(path), File.basename(relative_path), for_theme: true).create_for(theme.user_id)
theme.set_field(target: :common, name: name, type: :theme_upload_var, upload_id: upload.id)
end
end
theme_info["fields"]&.each do |name, info|
unless Hash === info
info = {
"target" => :common,
"type" => :theme_var,
"value" => info
}
end
if info["type"] == "color"
info["type"] = :theme_color_var
end
theme.set_field(target: info["target"] || :common,
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name: name,
value: info["value"],
type: info["type"] || :theme_var)
end
Theme.targets.keys.each do |target|
next if target == :settings
ALLOWED_FIELDS.each do |field|
lookup =
if field == "scss"
"#{target}.scss"
elsif field == "embedded_scss" && target == :common
"embedded.scss"
else
"#{field}.html"
end
value = importer["#{target}/#{lookup}"]
theme.set_field(target: target.to_sym, name: field, value: value)
end
end
settings_yaml = importer["settings.yaml"] || importer["settings.yml"]
theme.set_field(target: :settings, name: "yaml", value: settings_yaml)
self.license_url ||= theme_info["license_url"]
self.about_url ||= theme_info["about_url"]
if !skip_update
self.remote_updated_at = Time.zone.now
self.remote_version = importer.version
self.local_version = importer.version
self.commits_behind = 0
end
update_theme_color_schemes(theme, theme_info["color_schemes"]) unless theme.component
self
ensure
begin
importer.cleanup! if cleanup
rescue => e
Rails.logger.warn("Failed cleanup remote git #{e}")
end
end
def normalize_override(hex)
return unless hex
override = hex.downcase
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if override !~ /\A[0-9a-f]{6}\z/
override = nil
end
override
end
def update_theme_color_schemes(theme, schemes)
missing_scheme_names = Hash[*theme.color_schemes.pluck(:name, :id).flatten]
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schemes&.each do |name, colors|
missing_scheme_names.delete(name)
existing = theme.color_schemes.find_by(name: name)
if existing
existing.colors.each do |c|
override = normalize_override(colors[c.name])
if override && c.hex != override
c.hex = override
theme.notify_color_change(c)
end
end
else
scheme = theme.color_schemes.build(name: name)
ColorScheme.base.colors_hashes.each do |color|
override = normalize_override(colors[color[:name]])
scheme.color_scheme_colors << ColorSchemeColor.new(name: color[:name], hex: override || color[:hex])
end
end
end
if missing_scheme_names.length > 0
ColorScheme.where(id: missing_scheme_names.values).delete_all
# we may have stuff pointed at the incorrect scheme?
end
end
def github_diff_link
if github_repo_url.present? && local_version != remote_version
"#{github_repo_url.gsub(/\.git$/, "")}/compare/#{local_version}...#{remote_version}"
end
end
def github_repo_url
url = remote_url.strip
return url if url.match?(GITHUB_REGEXP)
if url.match?(GITHUB_SSH_REGEXP)
org_repo = url.gsub(GITHUB_SSH_REGEXP, "")
"https://github.com/#{org_repo}"
end
end
end
# == Schema Information
#
# Table name: remote_themes
#
# id :integer not null, primary key
# remote_url :string not null
# remote_version :string
# local_version :string
# about_url :string
# license_url :string
# commits_behind :integer
# remote_updated_at :datetime
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# created_at :datetime not null
# updated_at :datetime not null
# private_key :text
#