1 class User < ArvadosModel
4 include CommonApiTemplate
6 has_many :api_client_authorizations
7 before_update :prevent_privilege_escalation
8 before_update :prevent_inactive_admin
9 before_create :check_auto_admin
10 after_create AdminNotifier
12 has_many :authorized_keys, :foreign_key => :authorized_user_uuid, :primary_key => :uuid
14 api_accessible :user, extend: :common do |t|
26 ALL_PERMISSIONS = {read: true, write: true, manage: true}
29 "#{first_name} #{last_name}"
34 Rails.configuration.new_users_are_active ||
35 self.groups_i_can(:read).select { |x| x.match /-f+$/ }.first)
38 def groups_i_can(verb)
39 self.group_permissions.select { |uuid, mask| mask[verb] }.keys
43 return true if is_admin
44 actions.each do |action, target|
46 if target.respond_to? :uuid
47 target_uuid = target.uuid
49 next if target_uuid == self.uuid
50 next if (group_permissions[target_uuid] and
51 group_permissions[target_uuid][action])
52 if target.respond_to? :owner_uuid
53 next if target.owner_uuid == self.uuid
54 next if (group_permissions[target.owner_uuid] and
55 group_permissions[target.owner_uuid][action])
62 def self.invalidate_permissions_cache
63 Rails.cache.delete_matched(/^groups_for_user_/)
66 # Return a hash of {group_uuid: perm_hash} where perm_hash[:read]
67 # and perm_hash[:write] are true if this user can read and write
68 # objects owned by group_uuid.
70 Rails.cache.fetch "groups_for_user_#{self.uuid}" do
72 todo = {self.uuid => true}
75 lookup_uuids = todo.keys
76 lookup_uuids.each do |uuid| done[uuid] = true end
79 Group.where('owner_uuid in (?)', lookup_uuids).each do |group|
80 newgroups << [group.owner_uuid, group.uuid, 'can_manage']
82 Link.where('tail_uuid in (?) and link_class = ? and head_kind = ?',
85 'arvados#group').each do |link|
86 newgroups << [link.tail_uuid, link.head_uuid, link.name]
88 newgroups.each do |tail_uuid, head_uuid, perm_name|
89 unless done.has_key? head_uuid
90 todo[head_uuid] = true
95 link_permissions = {read:true}
97 link_permissions = {read:true,write:true}
99 link_permissions = ALL_PERMISSIONS
101 permissions_from[tail_uuid] ||= {}
102 permissions_from[tail_uuid][head_uuid] ||= {}
103 link_permissions.each do |k,v|
104 permissions_from[tail_uuid][head_uuid][k] ||= v
108 search_permissions(self.uuid, permissions_from)
112 def self.setup(user, openid_prefix, repo_name=nil, vm_uuid=nil)
113 login_perm_props = {identity_url_prefix: openid_prefix}
115 # Check oid_login_perm
116 oid_login_perms = Link.where(tail_uuid: user.email,
117 head_kind: 'arvados#user',
118 link_class: 'permission',
121 if !oid_login_perms.any?
122 # create openid login permission
123 oid_login_perm = Link.create(link_class: 'permission',
126 tail_uuid: user.email,
127 head_kind: 'arvados#user',
128 head_uuid: user.uuid,
129 properties: login_perm_props
131 logger.info { "openid login permission: " + oid_login_perm[:uuid] }
133 oid_login_perm = oid_login_perms.first
136 return [oid_login_perm] + user.setup_repo_vm_links(repo_name, vm_uuid)
140 def setup_repo_vm_links(repo_name, vm_uuid)
141 repo_perm = create_user_repo_link repo_name
142 vm_login_perm = create_vm_login_permission_link vm_uuid, repo_name
143 group_perm = create_user_group_link
145 return [repo_perm, vm_login_perm, group_perm, self].compact
148 # delete user signatures, login, repo, and vm perms, and mark as inactive
150 # delete oid_login_perms for this user
151 oid_login_perms = Link.where(tail_uuid: self.email,
152 head_kind: 'arvados#user',
153 link_class: 'permission',
155 oid_login_perms.each do |perm|
159 # delete repo_perms for this user
160 repo_perms = Link.where(tail_uuid: self.uuid,
161 head_kind: 'arvados#repository',
162 link_class: 'permission',
164 repo_perms.each do |perm|
168 # delete vm_login_perms for this user
169 vm_login_perms = Link.where(tail_uuid: self.uuid,
170 head_kind: 'arvados#virtualMachine',
171 link_class: 'permission',
173 vm_login_perms.each do |perm|
177 # delete any signatures by this user
178 signed_uuids = Link.where(link_class: 'signature',
179 tail_kind: 'arvados#user',
180 tail_uuid: self.uuid)
181 signed_uuids.each do |sign|
185 # mark the user as inactive
186 self.is_active = false
194 def permission_to_update
195 # users must be able to update themselves (even if they are
196 # inactive) in order to create sessions
197 self == current_user or super
200 def permission_to_create
201 current_user.andand.is_admin or
202 (self == current_user and
203 self.is_active == Rails.configuration.new_users_are_active)
207 if User.where("uuid not like '%-000000000000000'").where(:is_admin => true).count == 0 and Rails.configuration.auto_admin_user
208 if current_user.email == Rails.configuration.auto_admin_user
210 self.is_active = true
215 def prevent_privilege_escalation
216 if current_user.andand.is_admin
219 if self.is_active_changed?
220 if self.is_active != self.is_active_was
221 logger.warn "User #{current_user.uuid} tried to change is_active from #{self.is_admin_was} to #{self.is_admin} for #{self.uuid}"
222 self.is_active = self.is_active_was
225 if self.is_admin_changed?
226 if self.is_admin != self.is_admin_was
227 logger.warn "User #{current_user.uuid} tried to change is_admin from #{self.is_admin_was} to #{self.is_admin} for #{self.uuid}"
228 self.is_admin = self.is_admin_was
234 def prevent_inactive_admin
235 if self.is_admin and not self.is_active
236 # There is no known use case for the strange set of permissions
237 # that would result from this change. It's safest to assume it's
238 # a mistake and disallow it outright.
239 raise "Admin users cannot be inactive"
244 def search_permissions(start, graph, merged={}, upstream_mask=nil, upstream_path={})
245 nextpaths = graph[start]
246 return merged if !nextpaths
247 return merged if upstream_path.has_key? start
248 upstream_path[start] = true
249 upstream_mask ||= ALL_PERMISSIONS
250 nextpaths.each do |head, mask|
253 merged[head][k] ||= v if upstream_mask[k]
255 search_permissions(head, graph, merged, upstream_mask.select { |k,v| v && merged[head][k] }, upstream_path)
257 upstream_path.delete start
261 def create_user_repo_link(repo_name)
262 # repo_name is optional
264 logger.warn ("Repository name not given for #{self.uuid}.")
268 # Check for an existing repository with the same name we're about to use.
269 repo = Repository.where(name: repo_name).first
272 logger.warn "Repository exists for #{repo_name}: #{repo[:uuid]}."
274 # Look for existing repository access for this repo
275 repo_perms = Link.where(tail_uuid: self.uuid,
276 head_kind: 'arvados#repository',
277 head_uuid: repo[:uuid],
278 link_class: 'permission',
281 logger.warn "User already has repository access " +
282 repo_perms.collect { |p| p[:uuid] }.inspect
283 return repo_perms.first
287 # create repo, if does not already exist
288 repo ||= Repository.create(name: repo_name)
289 logger.info { "repo uuid: " + repo[:uuid] }
291 repo_perm = Link.create(tail_kind: 'arvados#user',
292 tail_uuid: self.uuid,
293 head_kind: 'arvados#repository',
294 head_uuid: repo[:uuid],
295 link_class: 'permission',
297 logger.info { "repo permission: " + repo_perm[:uuid] }
301 # create login permission for the given vm_uuid, if it does not already exist
302 def create_vm_login_permission_link(vm_uuid, repo_name)
305 # vm uuid is optional
307 vm = VirtualMachine.where(uuid: vm_uuid).first
310 logger.warn "Could not find virtual machine for #{vm_uuid.inspect}"
311 raise "No vm found for #{vm_uuid}"
317 logger.info { "vm uuid: " + vm[:uuid] }
319 login_perms = Link.where(tail_uuid: self.uuid,
320 head_uuid: vm[:uuid],
321 head_kind: 'arvados#virtualMachine',
322 link_class: 'permission',
325 login_perm = Link.create(tail_kind: 'arvados#user',
326 tail_uuid: self.uuid,
327 head_kind: 'arvados#virtualMachine',
328 head_uuid: vm[:uuid],
329 link_class: 'permission',
331 properties: {username: repo_name})
332 logger.info { "login permission: " + login_perm[:uuid] }
334 login_perm = login_perms.first
341 # add the user to the 'All users' group
342 def create_user_group_link
343 # Look up the "All users" group (we expect uuid *-*-fffffffffffffff).
344 group = Group.where(name: 'All users').select do |g|
345 g[:uuid].match /-f+$/
349 logger.warn "No 'All users' group with uuid '*-*-fffffffffffffff'."
350 raise "No 'All users' group with uuid '*-*-fffffffffffffff' is found"
352 logger.info { "\"All users\" group uuid: " + group[:uuid] }
354 group_perms = Link.where(tail_uuid: self.uuid,
355 head_uuid: group[:uuid],
356 head_kind: 'arvados#group',
357 link_class: 'permission',
361 group_perm = Link.create(tail_kind: 'arvados#user',
362 tail_uuid: self.uuid,
363 head_kind: 'arvados#group',
364 head_uuid: group[:uuid],
365 link_class: 'permission',
367 logger.info { "group permission: " + group_perm[:uuid] }
369 group_perm = group_perms.first