Installation

dependencies:multi_auth:github:msa7/multi_auth

Usage

MultiAuth public interface

require"multi_auth"MultiAuth.config("github",ENV['ID'],ENV['SECRET'])# configuration  multi_auth=MultiAuth.make(provider, redirect_uri)# initialize engine  multi_auth.authorize_uri# URL to provider authentication dialog# on http callback, like /multi_auth/github/callback  user= multi_auth.user(params)# get signed in user

Kemal integration example

<ahref="/multi_auth/github">Sign in with Github</a>

MultiAuth.config("facebook","facebookClientID","facebookSecretKey")MultiAuth.config("google","googleClientID","googleSecretKey")defself.multi_auth(env)  provider= env.params.url["provider"]  redirect_uri="#{Kemal.config.scheme}://#{env.request.host_with_port.as(String)}/multi_auth/#{provider}/callback"MultiAuth.make(provider, redirect_uri)endget"/multi_auth/:provider"do |env|  env.redirect(multi_auth(env).authorize_uri)endget"/multi_auth/:provider/callback"do |env|  user= multi_auth(env).user(env.params.query)p user.email  userend

Lucky integration example

# config/watch.ymlhost: myapp.lvh.meport:5000# config/multi_auth_handler.crrequire"multi_auth"classMultiAuthHandlerMultiAuth.config("facebook","facebookClientID","facebookSecretKey")MultiAuth.config("google","googleClientID","googleSecretKey")defself.authorize_uri(provider :String)MultiAuth.make(provider,"#{Lucky::RouteHelper.settings.base_uri}/oauth/#{provider}/callback").authorize_uri(scope:"email")enddefself.user(provider :String, params :Enumerable({String,String}))MultiAuth.make(provider,"#{Lucky::RouteHelper.settings.base_uri}/oauth/#{provider}/callback").user(params)endend# src/actions/oauth/handler.crclassOAuth::Handler <BrowserAction  get"/oauth/:provider"do    redirectto:MultiAuthHandler.authorize_uri(provider)endend# src/actions/oauth/handler/callback.crclassOAuth::Handler::Callback <BrowserAction  get"/oauth/:provider/callback"do    user=MultiAuthHandler.user(provider, request.query_params)    text user.email.to_sendend

Amber integration example

# config/initializers/multi_auth.crrequire"multi_auth"MultiAuth.config("facebook","facebookClientID","facebookSecretKey")MultiAuth.config("google","googleClientID","googleSecretKey")# config/routes.crroutes:webdo  ...  get"/multi_auth/:provider",MultiAuthController,:new  get"/multi_auth/:provider/callback",MultiAuthController,:callbackend# src/controllers/multi_auth_controller.crclassMultiAuthController <ApplicationControllerdefnew    redirect_to multi_auth.authorize_uri(scope:"email")enddefcallback    multi_auth_user= multi_auth.user(request.query_params)if user=User.find_byemail: multi_auth_user.email      login userelse      user=User.create!(first_name: multi_auth_user.first_name,last_name: multi_auth_user.last_name,email: multi_auth_user.email      )      login userend    redirect_to"/"enddeflogin(user)    context.session["user_id"]= user.idenddefprovider    params[:provider]enddefredirect_uri"#{Amber.settings.secrets["base_url"]}/multi_auth/#{provider}/callback"enddefmulti_authMultiAuth.make(provider, redirect_uri)endend

Marten integration example

# config/initializers/multi_auth.cr# ----require"multi_auth"MultiAuth.config("github","<github_client_id>","<github_secret_key>")# config/routes.cr# ----Marten.routes.drawdo  path"/oauth/<provider:string>",OAuthInitiateHandler,name:"oauth_initiate"  path"/oauth/<provider:string>/callback",OAuthCallbackHandler,name:"oauth_callback"end# src/handlers/concerns/with_oauth.cr# ----moduleWithOAuthdefmulti_authMultiAuth.make(provider, redirect_uri)endprivatedefprovider    params["provider"].to_sendprivatedefredirect_uri"#{request.scheme}://#{request.host}#{reverse("oauth_callback",provider: provider)}"endend# src/handlers/oauth_initiate_handler.cr# ----require"./concerns/**"classOAuthInitiateHandler <Marten::HandlerincludeWithOAuthdefget    redirect multi_auth.authorize_uri(scope:"email")endend# src/handlers/oauth_initiate_callback.cr# ----require"./concerns/**"classOAuthCallbackHandler <Marten::HandlerincludeWithOAuthdefget    user_params=Hash(String,String).new.tapdo |params|      request.query_params.each { |k,v| params[k]= v.last }end        multi_auth_user= multi_auth.user(user_params)unless user=Auth::User.get(email: multi_auth_user.email)      user=Auth::User.create!(email: multi_auth_user.email)do |new_user|        new_user.set_unusable_passwordendendMartenAuth.sign_in(request, user)    redirect"/"endend

Development

make setup

make tmake t c=spec/providers/twitter_spec.cr

make l

Contributors