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93 lines
2.8 KiB
93 lines
2.8 KiB
class Domain < ActiveRecord::Base |
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attr_accessor :parent_synced |
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# this goes before acts_as_nested_interval call |
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before_save do |
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self.name_reversed = name.reverse if name_changed? |
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sync_parent |
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end |
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# this goes after sync_parent, to order callbacks correctly |
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acts_as_nested_interval virtual_root: true |
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validate :domain_ownership |
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def domain_ownership |
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# non-TLD validation |
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errors[:name] = "cannot be a TLD or a reserved domain" if Tld.include?(name) |
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# If parent domain is on our system, the user be permitted to manage current domain. |
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# He either owns parent, or is permitted to current domain or to an ancestor. |
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if parent_domain.present? && !parent_domain.can_be_managed_by_current_user? |
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@domain_ownership_failed = true |
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errors[:name] = "issue, the parent domain `#{parent_domain.name}` is registered to another user" |
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end |
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end |
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# If current user present authorize it |
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# If current user not present, just allow (rake tasks etc) |
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def can_be_managed_by_current_user? |
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return true if User.current.nil? |
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Ability::CRUD.all?{|operation| User.current.can?(operation, self)} |
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end |
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after_save :sync_children |
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# Returns the first immediate parent, if exists (and caches the search) |
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def parent_domain |
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return nil if name.nil? |
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@parent_domain ||= {} |
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@parent_domain[name] ||= _parent_domain |
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end |
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def subdomains |
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Domain.where(:name_reversed.matches => "#{name_reversed}.%") |
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end |
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def subdomain_of?(domain) |
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name.end_with?('.' + domain.name) |
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end |
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# Overrides acts_as_nested_interval#ancestor_of? |
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def ancestor_of?(domain) |
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domain.subdomain_of?(self) |
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end |
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protected |
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# Returns the first immediate parent, if exists (does not cache the search) |
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# For example "sub.sub.domain.com"'s parent might be "sub.domain.com" or "domain.com" |
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def _parent_domain |
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segments = name.split('.') |
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while segments.size > 1 |
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segments.shift |
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domain = Domain.find_by_name(segments.join('.')) |
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return domain if domain.present? |
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end |
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return nil |
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end |
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# Syncs with nested interval when a child is added and parent exists |
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def sync_parent |
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if !@parent_synced && parent_domain.present? && self.parent_id != parent_domain.id |
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self.parent = parent_domain |
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end |
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end |
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# Syncs with nested interval when the parent is added later than the children |
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def sync_children |
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descendants = subdomains.preorder.all |
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first = descendants.first |
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return true unless first.present? |
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# only immediate children, rest will chain recursively |
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depth = first.depth |
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descendants = descendants.select { |d| d.depth == depth } |
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subdomains.each do |subdomain| |
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subdomain.parent = self |
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subdomain.parent_synced = true # no n+1 |
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subdomain.save! |
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end |
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end |
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end |