Look for repo_name in VM link
[arvados.git] / services / api / app / models / user.rb
index 54ea3e5d050960753e38aa4d794462c42e29d06a..6db1d3ec3c01140bd8935938b127781ea3fab7d8 100644 (file)
@@ -7,6 +7,7 @@ class User < ArvadosModel
   before_update :prevent_privilege_escalation
   before_update :prevent_inactive_admin
   before_create :check_auto_admin
+  after_create :add_system_group_permission_link
   after_create AdminNotifier
 
   has_many :authorized_keys, :foreign_key => :authorized_user_uuid, :primary_key => :uuid
@@ -79,10 +80,10 @@ class User < ArvadosModel
         Group.where('owner_uuid in (?)', lookup_uuids).each do |group|
           newgroups << [group.owner_uuid, group.uuid, 'can_manage']
         end
-        Link.where('tail_uuid in (?) and link_class = ? and head_kind = ?',
+        Link.where('tail_uuid in (?) and link_class = ? and head_kind in (?)',
                    lookup_uuids,
                    'permission',
-                   'arvados#group').each do |link|
+                   ['arvados#group', 'arvados#user']).each do |link|
           newgroups << [link.tail_uuid, link.head_uuid, link.name]
         end
         newgroups.each do |tail_uuid, head_uuid, perm_name|
@@ -111,66 +112,81 @@ class User < ArvadosModel
 
   def self.setup(user, openid_prefix, repo_name=nil, vm_uuid=nil)
     login_perm_props = {identity_url_prefix: openid_prefix}
-    if user[:uuid]
-      found = User.find_by_uuid user[:uuid]
-    end
-
-    if !found
-      if !user[:email]
-        raise "No email found in the input. Aborting user creation."
-      end
-
-      if !user.save
-        raise "Save failed"
-      end
-    else
-      user = found
-    end
 
-    # Check opd_login_perm
-    oid_login_perm = Link.where(tail_uuid: user[:email],
-                                head_kind: 'arvados#user',
-                                link_class: 'permission',
-                                name: 'can_login')
+    # Check oid_login_perm
+    oid_login_perms = Link.where(tail_uuid: user.email,
+                                   head_kind: 'arvados#user',
+                                   link_class: 'permission',
+                                   name: 'can_login')
 
-    if !oid_login_perm.any?
+    if !oid_login_perms.any?
       # create openid login permission
       oid_login_perm = Link.create(link_class: 'permission',
                                    name: 'can_login',
                                    tail_kind: 'email',
-                                   tail_uuid: user[:email],
+                                   tail_uuid: user.email,
                                    head_kind: 'arvados#user',
-                                   head_uuid: user[:uuid],
+                                   head_uuid: user.uuid,
                                    properties: login_perm_props
                                   )
       logger.info { "openid login permission: " + oid_login_perm[:uuid] }
+    else
+      oid_login_perm = oid_login_perms.first
     end
 
-    # create repo, vm, and group links
-    response = {user: user, oid_login_perm: oid_login_perm}
-
-    user.setup_links(repo_name, vm_uuid, openid_prefix, response)
-
-    return response
-  end 
+    return [oid_login_perm] + user.setup_repo_vm_links(repo_name, vm_uuid)
+  end
 
   # create links
-  def setup_links(repo_name, vm_uuid, openid_prefix, response)
+  def setup_repo_vm_links(repo_name, vm_uuid)
     repo_perm = create_user_repo_link repo_name
-    if repo_perm
-      response[:repo_perm] = repo_perm
+    vm_login_perm = create_vm_login_permission_link vm_uuid, repo_name
+    group_perm = create_user_group_link
+
+    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
+    oid_login_perms = Link.where(tail_uuid: self.email,
+                                 head_kind: 'arvados#user',
+                                 link_class: 'permission',
+                                 name: 'can_login')
+    oid_login_perms.each do |perm|
+      Link.delete perm
     end
 
-    vm_login_perm = create_vm_login_permission_link vm_uuid, repo_name
-    if vm_login_perm
-      response[:vm_login_perm] = vm_login_perm
+    # delete repo_perms for this user
+    repo_perms = Link.where(tail_uuid: self.uuid,
+                            head_kind: 'arvados#repository',
+                            link_class: 'permission',
+                            name: 'can_write')
+    repo_perms.each do |perm|
+      Link.delete perm
     end
 
-    group_perm = create_user_group_links
-    if group_perm
-      response[:group_perm] = group_perm
+    # delete vm_login_perms for this user
+    vm_login_perms = Link.where(tail_uuid: self.uuid,
+                                head_kind: 'arvados#virtualMachine',
+                                link_class: 'permission',
+                                name: 'can_login')
+    vm_login_perms.each do |perm|
+      Link.delete perm
+    end
+
+    # delete any signatures by this user
+    signed_uuids = Link.where(link_class: 'signature',
+                              tail_kind: 'arvados#user',
+                              tail_uuid: self.uuid)
+    signed_uuids.each do |sign|
+      Link.delete sign
     end
-  end 
+
+    # mark the user as inactive
+    self.is_active = false
+    self.save!
+  end
 
   protected
 
@@ -261,7 +277,7 @@ class User < ArvadosModel
                               link_class: 'permission',
                               name: 'can_write')
       if repo_perms.any?
-        logger.warn "User already has repository access " + 
+        logger.warn "User already has repository access " +
             repo_perms.collect { |p| p[:uuid] }.inspect
         return repo_perms.first
       end
@@ -284,9 +300,9 @@ 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)
     begin
-              
+
       # vm uuid is optional
-      if vm_uuid 
+      if vm_uuid
         vm = VirtualMachine.where(uuid: vm_uuid).first
 
         if not vm
@@ -294,17 +310,26 @@ class User < ArvadosModel
           raise "No vm found for #{vm_uuid}"
         end
       else
-        return 
+        return
       end
 
       logger.info { "vm uuid: " + vm[:uuid] }
 
-      login_perm = Link.where(tail_uuid: self.uuid,
+      login_perms = Link.where(tail_uuid: self.uuid,
                               head_uuid: vm[:uuid],
                               head_kind: 'arvados#virtualMachine',
                               link_class: 'permission',
                               name: 'can_login')
-      if !login_perm.any?
+
+      perm_exists = false
+      login_perms.each do |perm|
+        if perm.properties[:username] == repo_name
+          perm_exists = true
+          break
+        end
+      end
+
+      if !perm_exists
         login_perm = Link.create(tail_kind: 'arvados#user',
                                  tail_uuid: self.uuid,
                                  head_kind: 'arvados#virtualMachine',
@@ -313,6 +338,8 @@ class User < ArvadosModel
                                  name: 'can_login',
                                  properties: {username: repo_name})
         logger.info { "login permission: " + login_perm[:uuid] }
+      else
+        login_perm = login_perms.first
       end
 
       return login_perm
@@ -320,7 +347,7 @@ class User < ArvadosModel
   end
 
   # add the user to the 'All users' group
-  def create_user_group_links
+  def create_user_group_link
     # Look up the "All users" group (we expect uuid *-*-fffffffffffffff).
     group = Group.where(name: 'All users').select do |g|
       g[:uuid].match /-f+$/
@@ -332,13 +359,13 @@ class User < ArvadosModel
     else
       logger.info { "\"All users\" group uuid: " + group[:uuid] }
 
-      group_perm = Link.where(tail_uuid: self.uuid,
+      group_perms = Link.where(tail_uuid: self.uuid,
                               head_uuid: group[:uuid],
                               head_kind: 'arvados#group',
                               link_class: 'permission',
                               name: 'can_read')
 
-      if !group_perm.any?
+      if !group_perms.any?
         group_perm = Link.create(tail_kind: 'arvados#user',
                                  tail_uuid: self.uuid,
                                  head_kind: 'arvados#group',
@@ -346,10 +373,23 @@ class User < ArvadosModel
                                  link_class: 'permission',
                                  name: 'can_read')
         logger.info { "group permission: " + group_perm[:uuid] }
+      else
+        group_perm = group_perms.first
       end
 
       return group_perm
     end
   end
 
+  # Give the special "System group" permission to manage this user and
+  # all of this user's stuff.
+  #
+  def add_system_group_permission_link
+    Link.create(link_class: 'permission',
+                name: 'can_manage',
+                tail_kind: 'arvados#group',
+                tail_uuid: system_group_uuid,
+                head_kind: 'arvados#user',
+                head_uuid: self.uuid)
+  end
 end