X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/cba7945a5b409222301f7512e648866810cae4d9..951564eed1c82ec1a435f4e4636db86d1b7604fc:/app/controllers/api_controller.rb

diff --git a/app/controllers/api_controller.rb b/app/controllers/api_controller.rb
new file mode 100644
index 000000000..579af27cf
--- /dev/null
+++ b/app/controllers/api_controller.rb
@@ -0,0 +1,79 @@
+class ApiController < ApplicationController
+  skip_before_action :verify_authenticity_token
+
+  private
+
+  def authorize(realm = "Web Password", errormessage = "Couldn't authenticate you")
+    # make the current_user object from any auth sources we have
+    setup_user_auth
+
+    # handle authenticate pass/fail
+    unless current_user
+      # no auth, the user does not exist or the password was wrong
+      response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
+      render :plain => errormessage, :status => :unauthorized
+      return false
+    end
+  end
+
+  def deny_access(_exception)
+    if current_token
+      set_locale
+      report_error t("oauth.permissions.missing"), :forbidden
+    elsif current_user
+      head :forbidden
+    else
+      realm = "Web Password"
+      errormessage = "Couldn't authenticate you"
+      response.headers["WWW-Authenticate"] = "Basic realm=\"#{realm}\""
+      render :plain => errormessage, :status => :unauthorized
+    end
+  end
+
+  def gpx_status
+    status = database_status
+    status = "offline" if status == "online" && Settings.status == "gpx_offline"
+    status
+  end
+
+  ##
+  # sets up the current_user for use by other methods. this is mostly called
+  # from the authorize method, but can be called elsewhere if authorisation
+  # is optional.
+  def setup_user_auth
+    # try and setup using OAuth
+    unless Authenticator.new(self, [:token]).allow?
+      username, passwd = get_auth_data # parse from headers
+      # authenticate per-scheme
+      self.current_user = if username.nil?
+                            nil # no authentication provided - perhaps first connect (client should retry after 401)
+                          elsif username == "token"
+                            User.authenticate(:token => passwd) # preferred - random token for user from db, passed in basic auth
+                          else
+                            User.authenticate(:username => username, :password => passwd) # basic auth
+                          end
+    end
+
+    # have we identified the user?
+    if current_user
+      # check if the user has been banned
+      user_block = current_user.blocks.active.take
+      unless user_block.nil?
+        set_locale
+        if user_block.zero_hour?
+          report_error t("application.setup_user_auth.blocked_zero_hour"), :forbidden
+        else
+          report_error t("application.setup_user_auth.blocked"), :forbidden
+        end
+      end
+
+      # if the user hasn't seen the contributor terms then don't
+      # allow editing - they have to go to the web site and see
+      # (but can decline) the CTs to continue.
+      if !current_user.terms_seen && flash[:skip_terms].nil?
+        set_locale
+        report_error t("application.setup_user_auth.need_to_see_terms"), :forbidden
+      end
+    end
+  end
+end