X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/b5a8d7052ff461073496627aef8e2e0c29901a19..118908c39c6ffa0ae8b62cddbdb610c51a461b6d:/services/api/app/models/user.rb

diff --git a/services/api/app/models/user.rb b/services/api/app/models/user.rb
index 9209411f1e..310c2ca698 100644
--- a/services/api/app/models/user.rb
+++ b/services/api/app/models/user.rb
@@ -10,6 +10,7 @@ class User < ArvadosModel
   include KindAndEtag
   include CommonApiTemplate
   include CanBeAnOwner
+  extend CurrentApiClient
 
   serialize :prefs, Hash
   has_many :api_client_authorizations
@@ -20,6 +21,7 @@ class User < ArvadosModel
             },
             uniqueness: true,
             allow_nil: true)
+  validate :must_unsetup_to_deactivate
   before_update :prevent_privilege_escalation
   before_update :prevent_inactive_admin
   before_update :verify_repositories_empty, :if => Proc.new { |user|
@@ -30,10 +32,11 @@ class User < ArvadosModel
   before_create :set_initial_username, :if => Proc.new { |user|
     user.username.nil? and user.email
   }
+  after_create :setup_on_activate
   after_create :add_system_group_permission_link
   after_create :invalidate_permissions_cache
   after_create :auto_setup_new_user, :if => Proc.new { |user|
-    Rails.configuration.auto_setup_new_users and
+    Rails.configuration.Users.AutoSetupNewUsers and
     (user.uuid != system_user_uuid) and
     (user.uuid != anonymous_user_uuid)
   }
@@ -48,6 +51,8 @@ class User < ArvadosModel
   has_many :authorized_keys, :foreign_key => :authorized_user_uuid, :primary_key => :uuid
   has_many :repositories, foreign_key: :owner_uuid, primary_key: :uuid
 
+  default_scope { where('redirect_to_user_uuid is null') }
+
   api_accessible :user, extend: :common do |t|
     t.add :email
     t.add :username
@@ -78,7 +83,7 @@ class User < ArvadosModel
 
   def is_invited
     !!(self.is_active ||
-       Rails.configuration.new_users_are_active ||
+       Rails.configuration.Users.NewUsersAreActive ||
        self.groups_i_can(:read).select { |x| x.match(/-f+$/) }.first)
   end
 
@@ -138,16 +143,11 @@ class User < ArvadosModel
     true
   end
 
-  def self.invalidate_permissions_cache(timestamp=nil)
-    if Rails.configuration.async_permissions_update
-      timestamp = DbCurrentTime::db_current_time.to_i if timestamp.nil?
-      connection.execute "NOTIFY invalidate_permissions_cache, '#{timestamp}'"
-    else
-      refresh_permission_view
-    end
+  def self.invalidate_permissions_cache(async=false)
+    refresh_permission_view(async)
   end
 
-  def invalidate_permissions_cache(timestamp=nil)
+  def invalidate_permissions_cache
     User.invalidate_permissions_cache
   end
 
@@ -188,44 +188,46 @@ class User < ArvadosModel
   end
 
   # create links
-  def setup(openid_prefix:, repo_name: nil, vm_uuid: nil)
-    oid_login_perm = create_oid_login_perm openid_prefix
+  def setup(repo_name: nil, vm_uuid: nil)
     repo_perm = create_user_repo_link repo_name
     vm_login_perm = create_vm_login_permission_link(vm_uuid, username) if vm_uuid
     group_perm = create_user_group_link
 
-    return [oid_login_perm, repo_perm, vm_login_perm, group_perm, self].compact
+    return [repo_perm, vm_login_perm, group_perm, self].compact
   end
 
   # delete user signatures, login, repo, and vm perms, and mark as inactive
   def unsetup
     # delete oid_login_perms for this user
-    Link.destroy_all(tail_uuid: self.email,
+    #
+    # note: these permission links are obsolete, they have no effect
+    # on anything and they are not created for new users.
+    Link.where(tail_uuid: self.email,
                      link_class: 'permission',
-                     name: 'can_login')
+                     name: 'can_login').destroy_all
 
     # delete repo_perms for this user
-    Link.destroy_all(tail_uuid: self.uuid,
+    Link.where(tail_uuid: self.uuid,
                      link_class: 'permission',
-                     name: 'can_manage')
+                     name: 'can_manage').destroy_all
 
     # delete vm_login_perms for this user
-    Link.destroy_all(tail_uuid: self.uuid,
+    Link.where(tail_uuid: self.uuid,
                      link_class: 'permission',
-                     name: 'can_login')
+                     name: 'can_login').destroy_all
 
     # delete "All users" group read permissions for this user
     group = Group.where(name: 'All users').select do |g|
       g[:uuid].match(/-f+$/)
     end.first
-    Link.destroy_all(tail_uuid: self.uuid,
+    Link.where(tail_uuid: self.uuid,
                      head_uuid: group[:uuid],
                      link_class: 'permission',
-                     name: 'can_read')
+                     name: 'can_read').destroy_all
 
     # delete any signatures by this user
-    Link.destroy_all(link_class: 'signature',
-                     tail_uuid: self.uuid)
+    Link.where(link_class: 'signature',
+                     tail_uuid: self.uuid).destroy_all
 
     # delete user preferences (including profile)
     self.prefs = {}
@@ -235,6 +237,37 @@ class User < ArvadosModel
     self.save!
   end
 
+  def must_unsetup_to_deactivate
+    if self.is_active_changed? &&
+       self.is_active_was == true &&
+       !self.is_active
+
+      group = Group.where(name: 'All users').select do |g|
+        g[:uuid].match(/-f+$/)
+      end.first
+
+      # When a user is set up, they are added to the "All users"
+      # group.  A user that is part of the "All users" group is
+      # allowed to self-activate.
+      #
+      # It doesn't make sense to deactivate a user (set is_active =
+      # false) without first removing them from the "All users" group,
+      # because they would be able to immediately reactivate
+      # themselves.
+      #
+      # The 'unsetup' method removes the user from the "All users"
+      # group (and also sets is_active = false) so send a message
+      # explaining the correct way to deactivate a user.
+      #
+      if Link.where(tail_uuid: self.uuid,
+                    head_uuid: group[:uuid],
+                    link_class: 'permission',
+                    name: 'can_read').any?
+        errors.add :is_active, "cannot be set to false directly, use the 'Deactivate' button on Workbench, or the 'unsetup' API call"
+      end
+    end
+  end
+
   def set_initial_username(requested: false)
     if !requested.is_a?(String) || requested.empty?
       email_parts = email.partition("@")
@@ -269,25 +302,211 @@ class User < ArvadosModel
       old_uuid = self.uuid
       self.uuid = new_uuid
       save!(validate: false)
-      ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
-        klass.columns.each do |col|
-          if col.name.end_with?('_uuid')
-            column = col.name.to_sym
-            klass.where(column => old_uuid).update_all(column => new_uuid)
+      change_all_uuid_refs(old_uuid: old_uuid, new_uuid: new_uuid)
+    end
+  end
+
+  # Move this user's (i.e., self's) owned items to new_owner_uuid and
+  # new_user_uuid (for things normally owned directly by the user).
+  #
+  # If redirect_auth is true, also reassign auth tokens and ssh keys,
+  # and redirect this account to redirect_to_user_uuid, i.e., when a
+  # caller authenticates to this account in the future, the account
+  # redirect_to_user_uuid account will be used instead.
+  #
+  # current_user must have admin privileges, i.e., the caller is
+  # responsible for checking permission to do this.
+  def merge(new_owner_uuid:, new_user_uuid:, redirect_to_new_user:)
+    raise PermissionDeniedError if !current_user.andand.is_admin
+    raise "Missing new_owner_uuid" if !new_owner_uuid
+    raise "Missing new_user_uuid" if !new_user_uuid
+    transaction(requires_new: true) do
+      reload
+      raise "cannot merge an already merged user" if self.redirect_to_user_uuid
+
+      new_user = User.where(uuid: new_user_uuid).first
+      raise "user does not exist" if !new_user
+      raise "cannot merge to an already merged user" if new_user.redirect_to_user_uuid
+
+      # If 'self' is a remote user, don't transfer authorizations
+      # (i.e. ability to access the account) to the new user, because
+      # that gives the remote site the ability to access the 'new'
+      # user account that takes over the 'self' account.
+      #
+      # If 'self' is a local user, it is okay to transfer
+      # authorizations, even if the 'new' user is a remote account,
+      # because the remote site does not gain the ability to access an
+      # account it could not before.
+
+      if redirect_to_new_user and self.uuid[0..4] == Rails.configuration.ClusterID
+        # Existing API tokens and ssh keys are updated to authenticate
+        # to the new user.
+        ApiClientAuthorization.
+          where(user_id: id).
+          update_all(user_id: new_user.id)
+
+        user_updates = [
+          [AuthorizedKey, :owner_uuid],
+          [AuthorizedKey, :authorized_user_uuid],
+          [Link, :owner_uuid],
+          [Link, :tail_uuid],
+          [Link, :head_uuid],
+        ]
+      else
+        # Destroy API tokens and ssh keys associated with the old
+        # user.
+        ApiClientAuthorization.where(user_id: id).destroy_all
+        AuthorizedKey.where(owner_uuid: uuid).destroy_all
+        AuthorizedKey.where(authorized_user_uuid: uuid).destroy_all
+        user_updates = [
+          [Link, :owner_uuid],
+          [Link, :tail_uuid]
+        ]
+      end
+
+      # References to the old user UUID in the context of a user ID
+      # (rather than a "home project" in the project hierarchy) are
+      # updated to point to the new user.
+      user_updates.each do |klass, column|
+        klass.where(column => uuid).update_all(column => new_user.uuid)
+      end
+
+      # Need to update repository names to new username
+      if username
+        old_repo_name_re = /^#{Regexp.escape(username)}\//
+        Repository.where(:owner_uuid => uuid).each do |repo|
+          repo.owner_uuid = new_user.uuid
+          repo_name_sub = "#{new_user.username}/"
+          name = repo.name.sub(old_repo_name_re, repo_name_sub)
+          while (conflict = Repository.where(:name => name).first) != nil
+            repo_name_sub += "migrated"
+            name = repo.name.sub(old_repo_name_re, repo_name_sub)
           end
+          repo.name = name
+          repo.save!
         end
       end
+
+      # References to the merged user's "home project" are updated to
+      # point to new_owner_uuid.
+      ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
+        next if [ApiClientAuthorization,
+                 AuthorizedKey,
+                 Link,
+                 Log,
+                 Repository].include?(klass)
+        next if !klass.columns.collect(&:name).include?('owner_uuid')
+        klass.where(owner_uuid: uuid).update_all(owner_uuid: new_owner_uuid)
+      end
+
+      if redirect_to_new_user
+        update_attributes!(redirect_to_user_uuid: new_user.uuid, username: nil)
+      end
+      invalidate_permissions_cache
     end
   end
 
+  def redirects_to
+    user = self
+    redirects = 0
+    while (uuid = user.redirect_to_user_uuid)
+      user = User.unscoped.find_by_uuid(uuid)
+      if !user
+        raise Exception.new("user uuid #{user.uuid} redirects to nonexistent uuid #{uuid}")
+      end
+      redirects += 1
+      if redirects > 15
+        raise "Starting from #{self.uuid} redirect_to_user_uuid exceeded maximum number of redirects"
+      end
+    end
+    user
+  end
+
+  def self.register info
+    # login info expected fields, all can be optional but at minimum
+    # must supply either 'identity_url' or 'email'
+    #
+    #   email
+    #   first_name
+    #   last_name
+    #   username
+    #   alternate_emails
+    #   identity_url
+
+    primary_user = nil
+
+    # local database
+    identity_url = info['identity_url']
+
+    if identity_url && identity_url.length > 0
+      # Only local users can create sessions, hence uuid_like_pattern
+      # here.
+      user = User.unscoped.where('identity_url = ? and uuid like ?',
+                                 identity_url,
+                                 User.uuid_like_pattern).first
+      primary_user = user.redirects_to if user
+    end
+
+    if !primary_user
+      # identity url is unset or didn't find matching record.
+      emails = [info['email']] + (info['alternate_emails'] || [])
+      emails.select! {|em| !em.nil? && !em.empty?}
+
+      User.unscoped.where('email in (?) and uuid like ?',
+                          emails,
+                          User.uuid_like_pattern).each do |user|
+        if !primary_user
+          primary_user = user.redirects_to
+        elsif primary_user.uuid != user.redirects_to.uuid
+          raise "Ambiguous email address, directs to both #{primary_user.uuid} and #{user.redirects_to.uuid}"
+        end
+      end
+    end
+
+    if !primary_user
+      # New user registration
+      primary_user = User.new(:owner_uuid => system_user_uuid,
+                              :is_admin => false,
+                              :is_active => Rails.configuration.Users.NewUsersAreActive)
+
+      primary_user.set_initial_username(requested: info['username']) if info['username'] && !info['username'].blank?
+      primary_user.identity_url = info['identity_url'] if identity_url
+    end
+
+    primary_user.email = info['email'] if info['email']
+    primary_user.first_name = info['first_name'] if info['first_name']
+    primary_user.last_name = info['last_name'] if info['last_name']
+
+    if (!primary_user.email or primary_user.email.empty?) and (!primary_user.identity_url or primary_user.identity_url.empty?)
+      raise "Must have supply at least one of 'email' or 'identity_url' to User.register"
+    end
+
+    act_as_system_user do
+      primary_user.save!
+    end
+
+    primary_user
+  end
+
   protected
 
+  def change_all_uuid_refs(old_uuid:, new_uuid:)
+    ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |klass|
+      klass.columns.each do |col|
+        if col.name.end_with?('_uuid')
+          column = col.name.to_sym
+          klass.where(column => old_uuid).update_all(column => new_uuid)
+        end
+      end
+    end
+  end
+
   def ensure_ownership_path_leads_to_user
     true
   end
 
   def permission_to_update
-    if username_changed?
+    if username_changed? || redirect_to_user_uuid_changed? || email_changed?
       current_user.andand.is_admin
     else
       # users must be able to update themselves (even if they are
@@ -298,16 +517,17 @@ class User < ArvadosModel
 
   def permission_to_create
     current_user.andand.is_admin or
-      (self == current_user and
-       self.is_active == Rails.configuration.new_users_are_active)
+      (self == current_user &&
+       self.redirect_to_user_uuid.nil? &&
+       self.is_active == Rails.configuration.Users.NewUsersAreActive)
   end
 
   def check_auto_admin
     return if self.uuid.end_with?('anonymouspublic')
     if (User.where("email = ?",self.email).where(:is_admin => true).count == 0 and
-        Rails.configuration.auto_admin_user and self.email == Rails.configuration.auto_admin_user) or
+        !Rails.configuration.Users.AutoAdminUserWithEmail.empty? and self.email == Rails.configuration.Users["AutoAdminUserWithEmail"]) or
        (User.where("uuid not like '%-000000000000000'").where(:is_admin => true).count == 0 and
-        Rails.configuration.auto_admin_first_user)
+        Rails.configuration.Users.AutoAdminFirstUser)
       self.is_admin = true
       self.is_active = true
     end
@@ -322,13 +542,13 @@ class User < ArvadosModel
     quoted_name = self.class.connection.quote_string(basename)
     next_username = basename
     next_suffix = 1
-    while Rails.configuration.auto_setup_name_blacklist.include?(next_username)
+    while Rails.configuration.Users.AutoSetupUsernameBlacklist[next_username]
       next_suffix += 1
       next_username = "%s%i" % [basename, next_suffix]
     end
     0.upto(6).each do |suffix_len|
       pattern = "%s%s" % [quoted_name, "_" * suffix_len]
-      self.class.
+      self.class.unscoped.
           where("username like '#{pattern}'").
           select(:username).
           order('username asc').
@@ -351,7 +571,7 @@ class User < ArvadosModel
     end
     if self.is_active_changed?
       if self.is_active != self.is_active_was
-        logger.warn "User #{current_user.uuid} tried to change is_active from #{self.is_admin_was} to #{self.is_admin} for #{self.uuid}"
+        logger.warn "User #{current_user.uuid} tried to change is_active from #{self.is_active_was} to #{self.is_active} for #{self.uuid}"
         self.is_active = self.is_active_was
       end
     end
@@ -391,30 +611,6 @@ class User < ArvadosModel
     merged
   end
 
-  def create_oid_login_perm(openid_prefix)
-    # Check oid_login_perm
-    oid_login_perms = Link.where(tail_uuid: self.email,
-                                 head_uuid: self.uuid,
-                                 link_class: 'permission',
-                                 name: 'can_login')
-
-    if !oid_login_perms.any?
-      # create openid login permission
-      oid_login_perm = Link.create(link_class: 'permission',
-                                   name: 'can_login',
-                                   tail_uuid: self.email,
-                                   head_uuid: self.uuid,
-                                   properties: {
-                                     "identity_url_prefix" => openid_prefix,
-                                   })
-      logger.info { "openid login permission: " + oid_login_perm[:uuid] }
-    else
-      oid_login_perm = oid_login_perms.first
-    end
-
-    return oid_login_perm
-  end
-
   def create_user_repo_link(repo_name)
     # repo_name is optional
     if not repo_name
@@ -434,7 +630,7 @@ class User < ArvadosModel
   # create login permission for the given vm_uuid, if it does not already exist
   def create_vm_login_permission_link(vm_uuid, repo_name)
     # vm uuid is optional
-    return if !vm_uuid
+    return if vm_uuid == ""
 
     vm = VirtualMachine.where(uuid: vm_uuid).first
     if !vm
@@ -496,18 +692,18 @@ class User < ArvadosModel
   def setup_on_activate
     return if [system_user_uuid, anonymous_user_uuid].include?(self.uuid)
     if is_active && (new_record? || is_active_changed?)
-      setup(openid_prefix: Rails.configuration.default_openid_prefix)
+      setup
     end
   end
 
   # Automatically setup new user during creation
   def auto_setup_new_user
-    setup(openid_prefix: Rails.configuration.default_openid_prefix)
+    setup
     if username
-      create_vm_login_permission_link(Rails.configuration.auto_setup_new_users_with_vm_uuid,
+      create_vm_login_permission_link(Rails.configuration.Users.AutoSetupNewUsersWithVmUUID,
                                       username)
       repo_name = "#{username}/#{username}"
-      if Rails.configuration.auto_setup_new_users_with_repository and
+      if Rails.configuration.Users.AutoSetupNewUsersWithRepository and
           Repository.where(name: repo_name).first.nil?
         repo = Repository.create!(name: repo_name, owner_uuid: uuid)
         Link.create!(tail_uuid: uuid, head_uuid: repo.uuid,
@@ -520,8 +716,8 @@ class User < ArvadosModel
   def send_profile_created_notification
     if self.prefs_changed?
       if self.prefs_was.andand.empty? || !self.prefs_was.andand['profile']
-        profile_notification_address = Rails.configuration.user_profile_notification_address
-        ProfileNotifier.profile_created(self, profile_notification_address).deliver_now if profile_notification_address
+        profile_notification_address = Rails.configuration.Users.UserProfileNotificationAddress
+        ProfileNotifier.profile_created(self, profile_notification_address).deliver_now if profile_notification_address and !profile_notification_address.empty?
       end
     end
   end
@@ -529,7 +725,7 @@ class User < ArvadosModel
   def verify_repositories_empty
     unless repositories.first.nil?
       errors.add(:username, "can't be unset when the user owns repositories")
-      false
+      throw(:abort)
     end
   end