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 :add_system_group_permission_link
11 after_create AdminNotifier
13 has_many :authorized_keys, :foreign_key => :authorized_user_uuid, :primary_key => :uuid
15 api_accessible :user, extend: :common do |t|
27 ALL_PERMISSIONS = {read: true, write: true, manage: true}
30 "#{first_name} #{last_name}".strip
35 Rails.configuration.new_users_are_active ||
36 self.groups_i_can(:read).select { |x| x.match /-f+$/ }.first)
39 def groups_i_can(verb)
40 self.group_permissions.select { |uuid, mask| mask[verb] }.keys
44 return true if is_admin
45 actions.each do |action, target|
47 if target.respond_to? :uuid
48 target_uuid = target.uuid
50 next if target_uuid == self.uuid
51 next if (group_permissions[target_uuid] and
52 group_permissions[target_uuid][action])
53 if target.respond_to? :owner_uuid
54 next if target.owner_uuid == self.uuid
55 next if (group_permissions[target.owner_uuid] and
56 group_permissions[target.owner_uuid][action])
63 def self.invalidate_permissions_cache
64 Rails.cache.delete_matched(/^groups_for_user_/)
67 # Return a hash of {group_uuid: perm_hash} where perm_hash[:read]
68 # and perm_hash[:write] are true if this user can read and write
69 # objects owned by group_uuid.
71 Rails.cache.fetch "groups_for_user_#{self.uuid}" do
73 todo = {self.uuid => true}
76 lookup_uuids = todo.keys
77 lookup_uuids.each do |uuid| done[uuid] = true end
80 Group.where('owner_uuid in (?)', lookup_uuids).each do |group|
81 newgroups << [group.owner_uuid, group.uuid, 'can_manage']
83 Link.where('tail_uuid in (?) and link_class = ? and (head_uuid like ? or head_uuid like ?)',
86 Group.uuid_like_pattern,
87 User.uuid_like_pattern).each do |link|
88 newgroups << [link.tail_uuid, link.head_uuid, link.name]
90 newgroups.each do |tail_uuid, head_uuid, perm_name|
91 unless done.has_key? head_uuid
92 todo[head_uuid] = true
97 link_permissions = {read:true}
99 link_permissions = {read:true,write:true}
101 link_permissions = ALL_PERMISSIONS
103 permissions_from[tail_uuid] ||= {}
104 permissions_from[tail_uuid][head_uuid] ||= {}
105 link_permissions.each do |k,v|
106 permissions_from[tail_uuid][head_uuid][k] ||= v
110 search_permissions(self.uuid, permissions_from)
114 def self.setup(user, openid_prefix, repo_name=nil, vm_uuid=nil)
115 return user.setup_repo_vm_links(repo_name, vm_uuid, openid_prefix)
119 def setup_repo_vm_links(repo_name, vm_uuid, openid_prefix)
120 oid_login_perm = create_oid_login_perm openid_prefix
121 repo_perm = create_user_repo_link repo_name
122 vm_login_perm = create_vm_login_permission_link vm_uuid, repo_name
123 group_perm = create_user_group_link
125 return [oid_login_perm, repo_perm, vm_login_perm, group_perm, self].compact
128 # delete user signatures, login, repo, and vm perms, and mark as inactive
130 # delete oid_login_perms for this user
131 oid_login_perms = Link.where(tail_uuid: self.email,
132 link_class: 'permission',
134 oid_login_perms.each do |perm|
138 # delete repo_perms for this user
139 repo_perms = Link.where(tail_uuid: self.uuid,
140 link_class: 'permission',
142 repo_perms.each do |perm|
146 # delete vm_login_perms for this user
147 vm_login_perms = Link.where(tail_uuid: self.uuid,
148 link_class: 'permission',
150 vm_login_perms.each do |perm|
154 # delete "All users' group read permissions for this user
155 group = Group.where(name: 'All users').select do |g|
156 g[:uuid].match /-f+$/
158 group_perms = Link.where(tail_uuid: self.uuid,
159 head_uuid: group[:uuid],
160 link_class: 'permission',
162 group_perms.each do |perm|
166 # delete any signatures by this user
167 signed_uuids = Link.where(link_class: 'signature',
168 tail_uuid: self.uuid)
169 signed_uuids.each do |sign|
173 # mark the user as inactive
174 self.is_active = false
180 def ensure_ownership_path_leads_to_user
184 def permission_to_update
185 # users must be able to update themselves (even if they are
186 # inactive) in order to create sessions
187 self == current_user or super
190 def permission_to_create
191 current_user.andand.is_admin or
192 (self == current_user and
193 self.is_active == Rails.configuration.new_users_are_active)
197 if User.where("uuid not like '%-000000000000000'").where(:is_admin => true).count == 0 and Rails.configuration.auto_admin_user
198 if current_user.email == Rails.configuration.auto_admin_user
200 self.is_active = true
205 def prevent_privilege_escalation
206 if current_user.andand.is_admin
209 if self.is_active_changed?
210 if self.is_active != self.is_active_was
211 logger.warn "User #{current_user.uuid} tried to change is_active from #{self.is_admin_was} to #{self.is_admin} for #{self.uuid}"
212 self.is_active = self.is_active_was
215 if self.is_admin_changed?
216 if self.is_admin != self.is_admin_was
217 logger.warn "User #{current_user.uuid} tried to change is_admin from #{self.is_admin_was} to #{self.is_admin} for #{self.uuid}"
218 self.is_admin = self.is_admin_was
224 def prevent_inactive_admin
225 if self.is_admin and not self.is_active
226 # There is no known use case for the strange set of permissions
227 # that would result from this change. It's safest to assume it's
228 # a mistake and disallow it outright.
229 raise "Admin users cannot be inactive"
234 def search_permissions(start, graph, merged={}, upstream_mask=nil, upstream_path={})
235 nextpaths = graph[start]
236 return merged if !nextpaths
237 return merged if upstream_path.has_key? start
238 upstream_path[start] = true
239 upstream_mask ||= ALL_PERMISSIONS
240 nextpaths.each do |head, mask|
243 merged[head][k] ||= v if upstream_mask[k]
245 search_permissions(head, graph, merged, upstream_mask.select { |k,v| v && merged[head][k] }, upstream_path)
247 upstream_path.delete start
251 def create_oid_login_perm (openid_prefix)
252 login_perm_props = { "identity_url_prefix" => openid_prefix}
254 # Check oid_login_perm
255 oid_login_perms = Link.where(tail_uuid: self.email,
256 link_class: 'permission',
257 name: 'can_login').where("head_uuid = ?", self.uuid)
259 if !oid_login_perms.any?
260 # create openid login permission
261 oid_login_perm = Link.create(link_class: 'permission',
263 tail_uuid: self.email,
264 head_uuid: self.uuid,
265 properties: login_perm_props
267 logger.info { "openid login permission: " + oid_login_perm[:uuid] }
269 oid_login_perm = oid_login_perms.first
272 return oid_login_perm
275 def create_user_repo_link(repo_name)
276 # repo_name is optional
278 logger.warn ("Repository name not given for #{self.uuid}.")
282 # Check for an existing repository with the same name we're about to use.
283 repo = Repository.where(name: repo_name).first
286 logger.warn "Repository exists for #{repo_name}: #{repo[:uuid]}."
288 # Look for existing repository access for this repo
289 repo_perms = Link.where(tail_uuid: self.uuid,
290 head_uuid: repo[:uuid],
291 link_class: 'permission',
294 logger.warn "User already has repository access " +
295 repo_perms.collect { |p| p[:uuid] }.inspect
296 return repo_perms.first
300 # create repo, if does not already exist
301 repo ||= Repository.create(name: repo_name)
302 logger.info { "repo uuid: " + repo[:uuid] }
304 repo_perm = Link.create(tail_uuid: self.uuid,
305 head_uuid: repo[:uuid],
306 link_class: 'permission',
308 logger.info { "repo permission: " + repo_perm[:uuid] }
312 # create login permission for the given vm_uuid, if it does not already exist
313 def create_vm_login_permission_link(vm_uuid, repo_name)
316 # vm uuid is optional
318 vm = VirtualMachine.where(uuid: vm_uuid).first
321 logger.warn "Could not find virtual machine for #{vm_uuid.inspect}"
322 raise "No vm found for #{vm_uuid}"
328 logger.info { "vm uuid: " + vm[:uuid] }
330 login_perms = Link.where(tail_uuid: self.uuid,
331 head_uuid: vm[:uuid],
332 link_class: 'permission',
336 login_perms.each do |perm|
337 if perm.properties[:username] == repo_name
344 login_perm = Link.create(tail_uuid: self.uuid,
345 head_uuid: vm[:uuid],
346 link_class: 'permission',
348 properties: {username: repo_name})
349 logger.info { "login permission: " + login_perm[:uuid] }
351 login_perm = login_perms.first
358 # add the user to the 'All users' group
359 def create_user_group_link
360 # Look up the "All users" group (we expect uuid *-*-fffffffffffffff).
361 group = Group.where(name: 'All users').select do |g|
362 g[:uuid].match /-f+$/
366 logger.warn "No 'All users' group with uuid '*-*-fffffffffffffff'."
367 raise "No 'All users' group with uuid '*-*-fffffffffffffff' is found"
369 logger.info { "\"All users\" group uuid: " + group[:uuid] }
371 group_perms = Link.where(tail_uuid: self.uuid,
372 head_uuid: group[:uuid],
373 link_class: 'permission',
377 group_perm = Link.create(tail_uuid: self.uuid,
378 head_uuid: group[:uuid],
379 link_class: 'permission',
381 logger.info { "group permission: " + group_perm[:uuid] }
383 group_perm = group_perms.first
390 # Give the special "System group" permission to manage this user and
391 # all of this user's stuff.
393 def add_system_group_permission_link
394 act_as_system_user do
395 Link.create(link_class: 'permission',
397 tail_uuid: system_group_uuid,
398 head_uuid: self.uuid)