Module: Studio

Defined in:
lib/studio.rb,
lib/studio/s3.rb,
lib/studio/cable.rb,
lib/studio/email.rb,
lib/studio/redis.rb,
lib/studio/engine.rb,
lib/studio/version.rb,
lib/studio/link_token.rb,
app/models/studio/link.rb,
lib/studio/color_scale.rb,
lib/studio/email_smoke.rb,
lib/studio/image_cache.rb,
lib/studio/ui_primitives.rb,
lib/studio/mail_transport.rb,
lib/studio/theme_resolver.rb,
app/models/studio/enumeral.rb,
app/models/studio/model_page.rb,
lib/studio/username_generator.rb,
app/services/studio/email_image.rb,
app/models/studio/email_delivery.rb,
app/jobs/studio/email_delivery_job.rb,
app/controllers/studio/links_controller.rb,
app/controllers/studio/models_controller.rb,
app/models/concerns/studio/broadcastable.rb,
app/models/concerns/studio/board/rankable.rb,
app/controllers/concerns/studio/admin_models.rb,
app/helpers/studio/admin_models_table_helper.rb,
app/controllers/concerns/studio/impersonation.rb,
app/controllers/concerns/studio/error_handling.rb,
app/controllers/studio/email_images_controller.rb,
app/controllers/studio/local_emails_controller.rb,
app/controllers/studio/local_reviews_controller.rb,
app/controllers/concerns/studio/link_consumption.rb,
app/controllers/concerns/studio/board/reorderable.rb,
app/controllers/concerns/studio/magic_link_issuing.rb

Defined Under Namespace

Modules: AdminModels, AdminModelsTableHelper, Board, Broadcastable, Cable, ColorScale, Email, EmailImage, ErrorHandling, ImageCache, Impersonation, LinkConsumption, LinkToken, MagicLinkIssuing, Redis, S3, UiPrimitives Classes: EmailDelivery, EmailDeliveryJob, EmailImagesController, EmailSmoke, Engine, Enumeral, Link, LinksController, LocalEmailsController, LocalReviewsController, MailTransport, ModelPage, ModelsController, S3ConfigError, ThemeResolver, UserContractError, UsernameGenerator

Constant Summary collapse

REQUIRED_USER_INSTANCE_METHODS =

Only methods that consumers must explicitly define are checked here. Column accessors (#email, #name, #role) are NOT validated because ActiveRecord defines them lazily — they don't appear on .instance_methods until the schema is introspected (typically first record access). Missing columns are caught by the User table schema, not by this validator.

%i[admin? display_name].freeze
REQUIRED_USER_CLASS_METHODS = 
%i[find_by].freeze
PASSWORD_USER_INSTANCE_METHODS =

#authenticate is only required when email+password sign-in is enabled. Passwordless apps (the default) never call it.

%i[authenticate].freeze
VERSION = 
"0.29.1"

Class Method Summary collapse

Class Method Details

.auth_method?(method) ⇒ Boolean

True when the given sign-in method is enabled for this app.

Returns:

  • (Boolean) 


179
180
181
 
# File 'lib/studio.rb', line 179

def self.auth_method?(method)
  auth_methods.include?(method.to_sym)
end

.configure {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:

  • _self (Studio) —

    the object that the method was called on



144
145
146
 
# File 'lib/studio.rb', line 144

def self.configure
  yield self
end

.env_truthy?(value) ⇒ Boolean

Returns:

  • (Boolean) 


312
313
314
 
# File 'lib/studio.rb', line 312

def self.env_truthy?(value)
  %w[1 true yes on].include?(value.to_s.strip.downcase)
end

.env_value(env, key) ⇒ Object 



173
174
175
176
 
# File 'lib/studio.rb', line 173

def self.env_value(env, key)
  value = env[key]
  value if value && !value.to_s.strip.empty?
end

.feature?(name) ⇒ Boolean

True when the given capability feature is enabled for this app. Mirrors auth_method? — apps opt in via config.features in their initializer (see the Studio.features accessor). Tolerates String or Symbol entries and any Enumerable (Array or Set), so feature?("web3") and feature?(:web3) agree.

Returns:

  • (Boolean) 


187
188
189
 
# File 'lib/studio.rb', line 187

def self.feature?(name)
  features.any? { |f| f.to_sym == name.to_sym }
end

.local_email_capture? ⇒ Boolean

Returns:

  • (Boolean) 


234
235
236
237
238
239
 
# File 'lib/studio.rb', line 234

def self.local_email_capture?
  return false if defined?(Rails) && Rails.respond_to?(:env) && Rails.env.production?
  return !!local_email_capture unless local_email_capture.nil?

  env_truthy?(ENV["LOCAL_EMAIL_CAPTURE"]) || env_truthy?(ENV["AGENT_WORKTREE"])
end

.local_tool_enabled?(request_local:) ⇒ Boolean

The floor every developer-desk tool sits on: the local email inbox (Studio::LocalEmailsController) and the local-review mint (Studio::LocalReviewsController). Both hand out sign-in material without authenticating anyone, so both are OFF in production and OFF for any request that did not come from the loopback interface. One spelling, so a tool added later cannot quietly ship a weaker gate. Pass request.local? in.

Returns:

  • (Boolean) 


228
229
230
231
232
 
# File 'lib/studio.rb', line 228

def self.local_tool_enabled?(request_local:)
  return false if defined?(Rails) && Rails.respond_to?(:env) && Rails.env.production?

  !!request_local
end

.logo_for(title) ⇒ Object

Find a logo from theme_logos by title, with fallback chain:

  1. Exact title match
  2. "Navbar Logo" fallback
  3. First logo in the list


304
305
306
307
308
309
310
 
# File 'lib/studio.rb', line 304

def self.logo_for(title)
  logos = theme_logos.map { |l| l.is_a?(Hash) ? l : { file: l, title: l } }
  entry = logos.find { |l| l[:title] == title }
  entry ||= logos.find { |l| l[:title] == "Navbar Logo" }
  entry ||= logos.first
  entry ? "/#{entry[:file]}" : nil
end

.magic_link_via_l_route? ⇒ Boolean

True when the emailed/inbox magic-link URL is the short /l/ — i.e. magic links are Studio::Link rows AND this app draws the /l routes. False = the legacy /magic_link/ path: the :signed store, OR an app on the :database store that keeps its own /magic_link route (e.g. turf-monster, whose /l is already its landing-page namespace).

Returns:

  • (Boolean) 


218
219
220
 
# File 'lib/studio.rb', line 218

def self.magic_link_via_l_route?
  magic_link_store == :database && draw_link_routes
end

.mailer_from_for_transport(env: ENV, ses_from:, resend_from: nil) ⇒ Object 



148
149
150
151
152
153
154
 
# File 'lib/studio.rb', line 148

def self.mailer_from_for_transport(env: ENV, ses_from:, resend_from: nil)
  if ses_transport_ready?(env)
    env_value(env, "MAILER_FROM") || ses_from
  else
    env_value(env, "RESEND_MAILER_FROM") || resend_from || resend_mailer_from
  end
end

.marketing_from_for_transport(env: ENV, ses_from:, resend_from: nil) ⇒ Object 



156
157
158
159
160
161
162
163
164
165
 
# File 'lib/studio.rb', line 156

def self.marketing_from_for_transport(env: ENV, ses_from:, resend_from: nil)
  if ses_transport_ready?(env)
    env_value(env, "MARKETING_MAILER_FROM") || ses_from
  else
    env_value(env, "RESEND_MARKETING_FROM") ||
      env_value(env, "RESEND_MAILER_FROM") ||
      resend_from ||
      resend_mailer_from
  end
end

.password_login_available? ⇒ Boolean

True when the engine login should render a PASSWORD field/form: passwords are enabled (:password in auth_methods) AND the host User model actually supports them (responds to authenticate — i.e. has_secure_password). Both are required, and the second is the belt-and-suspenders: without it, a passwordless app (User with no authenticate) rendered the hardcoded password field and 500'd on submit via user.authenticate — the whole fleet having moved off passwords, this made the engine default wrong for every consumer. The User check is defensive of a mis-set auth_methods; the contract validation normally guarantees it (validate_user_contract! requires PASSWORD_USER_INSTANCE_METHODS iff auth_method?(:password)).

Returns:

  • (Boolean) 


199
200
201
 
# File 'lib/studio.rb', line 199

def self.
  auth_method?(:password) && user_supports_password?
end

.routes(router) ⇒ Object 



316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
 
# File 'lib/studio.rb', line 316

def self.routes(router)
  router.instance_exec do
    get  "login",  to: "sessions#new"
    post "login",  to: "sessions#create"
    post "sso_continue", to: "sessions#sso_continue"
    get  "sso_login",    to: "sessions#sso_login"
    get  "logout", to: "sessions#destroy"
    get  "signup", to: "registrations#new"
    post "signup", to: "registrations#create"
    get  "auth/:provider/callback", to: "omniauth_callbacks#create"
    get  "auth/failure", to: "omniauth_callbacks#failure"

    # Developer-desk tools. Drawn outside production, and each controller
    # re-checks Studio.local_tool_enabled? per request (loopback only) — the
    # route being absent is the outer gate, not the only one.
    unless defined?(Rails) && Rails.env.production?
      get "_studio/local_emails", to: "studio/local_emails#index", as: :studio_local_emails
      get "_studio/local_review", to: "studio/local_reviews#show",  as: :studio_local_review
    end

    # Passwordless email (magic link). Helpers: magic_link_request_path (POST
    # to request a link), magic_link_path(token) / magic_link_url(token:)
    # for the emailed GET confirmation page, and magic_link_consume_path(token)
    # for the scanner-safe POST consume. The token is a URL-safe
    # MessageVerifier blob but the constraint guards against a stray "."
    # segment.
    if Studio.draw_auth_routes && Studio.auth_method?(:magic_link)
      post "magic_link",        to: "magic_links#create",   as: :magic_link_request
      get  "magic_link/:token", to: "magic_links#confirm",  as: :magic_link,
           constraints: { token: %r{[^/]+} }
      post "magic_link/:token", to: "magic_links#consume",  as: :magic_link_consume,
           constraints: { token: %r{[^/]+} }
    end

    # Unified short-token links — /l/<token> for magic sign-in links + referral
    # links (Studio::Link). Studio::LinksController dispatches by kind: a
    # magic_link renders the scanner-safe confirm interstitial then POSTs to
    # consume; a referral captures attribution + redirects. Helpers: link_path
    # / link_url(token:) and link_consume_path. Drawn for every consumer
    # (including draw_auth_routes=false apps) unless draw_link_routes is off.
    if Studio.draw_link_routes
      get  "l/:token", to: "studio/links#show",    as: :link,
           constraints: { token: %r{[^/]+} }
      post "l/:token", to: "studio/links#consume", as: :link_consume,
           constraints: { token: %r{[^/]+} }
    end

    # Solana / Phantom wallet sign-in (nonce challenge + signature verify).
    # The browser posts to these literal paths from the shared Connect-Wallet
    # flow; app-specific surfaces (mobile deep-link callback, account-linking,
    # OAuth popup) stay in the consuming app's routes.
    if Studio.draw_auth_routes && Studio.auth_method?(:wallet)
      get  "auth/solana/nonce",  to: "solana_sessions#nonce",  as: :solana_nonce
      post "auth/solana/verify", to: "solana_sessions#verify", as: :solana_verify
    end

    resources :error_logs, only: [:index, :show]

    # Admin
    get   "admin/theme",            to: "theme_settings#edit",       as: :admin_theme
    patch "admin/theme",            to: "theme_settings#update",     as: :admin_theme_update
    post  "admin/theme/regenerate", to: "theme_settings#regenerate", as: :admin_theme_regenerate
    get   "admin/schema",           to: "schema#index",              as: :admin_schema
    # The living style guide. Canonical at /admin/style (StyleController#index);
    # /admin/design_system redirects here but KEEPS its admin_design_system_path
    # helper so a shipped host sidebar link on the old helper still resolves.
    get   "admin/style",            to: "style#index",               as: :admin_style
    get   "admin/design_system",    to: redirect("/admin/style"),    as: :admin_design_system

    # Admin-managed transactional-email banner images (Studio::EmailImage).
    # index lists each managed email variant + its current banner; update
    # uploads a replacement. Surfaced from each app's admin hub.
    get   "admin/email_images",          to: "studio/email_images#index",  as: :admin_email_images
    patch "admin/email_images/:variant", to: "studio/email_images#update",  as: :admin_email_image,
          constraints: { variant: /[a-z_]+/ }

    # Model-page protocol (v1) — a reusable per-record inspector. Drawn into
    # every consuming app: /models/:model/:id renders one record as pretty JSON
    # plus a copy/paste rails-console command; /models/:model/random bounces to
    # a random record of that model. Admin-only (Studio::ModelsController).
    # Ships an EMPTY registry — a host enables a model in an initializer with
    # `Studio::ModelPage.register("release", Release, lookup: :slug)`. `random`
    # is drawn BEFORE `:id` so it is not captured as a record identifier.
    get "models/:model/random", to: "studio/models#random", as: :studio_model_random
    get "models/:model/:id",    to: "studio/models#show",   as: :studio_model
  end
end

.ses_transport_ready?(env = ENV) ⇒ Boolean

Returns:

  • (Boolean) 


167
168
169
170
171
 
# File 'lib/studio.rb', line 167

def self.ses_transport_ready?(env = ENV)
  env["MAIL_TRANSPORT"].to_s.downcase == "ses" &&
    env_value(env, "SES_SMTP_USERNAME") &&
    env_value(env, "SES_SMTP_PASSWORD")
end

.theme_config ⇒ Object 



288
289
290
291
292
293
294
295
296
297
298
 
# File 'lib/studio.rb', line 288

def self.theme_config
  {
    primary: theme_primary,
    dark:    theme_dark,
    light:   theme_light,
    success: theme_success,
    warning: theme_warning,
    danger:  theme_danger,
    accent:  theme_accent
  }.compact
end

.user_supports_password? ⇒ Boolean

Does the host User model respond to authenticate (has_secure_password)? Safe when no User is defined (an engine-only boot / a test with no host model) — answers false rather than raise.

Returns:

  • (Boolean) 


205
206
207
208
209
210
211
 
# File 'lib/studio.rb', line 205

def self.user_supports_password?
  return false unless defined?(::User) && ::User.respond_to?(:instance_methods)

  PASSWORD_USER_INSTANCE_METHODS.all? { |m| ::User.instance_methods.include?(m) }
rescue StandardError
  false
end

.user_wallet_address(user) ⇒ Object 



241
242
243
244
245
246
247
248
249
250
251
252
 
# File 'lib/studio.rb', line 241

def self.user_wallet_address(user)
  return nil unless user

  [wallet_address_method, :wallet_address, :solana_address].compact.each do |method|
    next unless user.respond_to?(method)

    value = user.public_send(method)
    return value if value && !(value.respond_to?(:empty?) && value.empty?)
  end

  nil
end

.validate_user_contract!(user_class) ⇒ Object

Verifies that the host app's User model satisfies the engine's expected contract. Raises Studio::UserContractError with a clear pointer to docs/USER_CONTRACT.md if anything required is missing. Called from Engine#after_initialize. Opt out via Studio.validate_user_contract = false.

Raises:



258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
 
# File 'lib/studio.rb', line 258

def self.validate_user_contract!(user_class)
  return unless validate_user_contract
  return unless user_class.is_a?(Class)

  missing = []
  REQUIRED_USER_CLASS_METHODS.each do |m|
    missing << "User.#{m}" unless user_class.respond_to?(m)
  end
  instance_methods = REQUIRED_USER_INSTANCE_METHODS.dup
  instance_methods.concat(PASSWORD_USER_INSTANCE_METHODS) if auth_method?(:password)
  instance_methods.each do |m|
    missing << "User##{m}" unless user_class.instance_methods.include?(m)
  end

  return if missing.empty?

  raise UserContractError, <<~MSG
    The studio-engine gem's expected User model contract is not satisfied.

    Missing: #{missing.join(", ")}

    See the USER_CONTRACT.md doc in the studio-engine repo for the full
    contract + a minimal compliant example:
      https://github.com/amcritchie/studio-engine/blob/main/docs/USER_CONTRACT.md

    To bypass this check temporarily, set Studio.validate_user_contract = false
    in config/initializers/studio.rb.
  MSG
end