summaryrefslogtreecommitdiff
path: root/lib/chef/environment.rb
blob: 9cdb8a85226fac087863e738a83d7a9b46700901 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
#
# Author:: Stephen Delano (<stephen@chef.io>)
# Author:: Seth Falcon (<seth@chef.io>)
# Author:: John Keiser (<jkeiser@ospcode.com>)
# Author:: Kyle Goodwin (<kgoodwin@primerevenue.com>)
# Copyright:: Copyright 2010-2016, Chef Software Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require "chef/config"
require "chef/mash"
require "chef/mixin/params_validate"
require "chef/mixin/from_file"
require "chef/version_constraint"
require "chef/server_api"

class Chef
  class Environment

    DEFAULT = "default"

    include Chef::Mixin::ParamsValidate
    include Chef::Mixin::FromFile

    attr_accessor :chef_server_rest

    COMBINED_COOKBOOK_CONSTRAINT = /(.+)(?:[\s]+)((?:#{Chef::VersionConstraint::OPS.join('|')})(?:[\s]+).+)$/

    def initialize(chef_server_rest: nil)
      @name = ""
      @description = ""
      @default_attributes = Mash.new
      @override_attributes = Mash.new
      @cookbook_versions = Hash.new
      @chef_server_rest = chef_server_rest
    end

    def chef_server_rest
      @chef_server_rest ||= Chef::ServerAPI.new(Chef::Config[:chef_server_url])
    end

    def self.chef_server_rest
      Chef::ServerAPI.new(Chef::Config[:chef_server_url])
    end

    def name(arg = nil)
      set_or_return(
        :name,
        arg,
        { :regex => /^[\-[:alnum:]_]+$/, :kind_of => String }
      )
    end

    def description(arg = nil)
      set_or_return(
        :description,
        arg,
        :kind_of => String,
      )
    end

    def default_attributes(arg = nil)
      set_or_return(
        :default_attributes,
        arg,
        :kind_of => Hash,
      )
    end

    def default_attributes=(attrs)
      default_attributes(attrs)
    end

    def override_attributes(arg = nil)
      set_or_return(
        :override_attributes,
        arg,
        :kind_of => Hash,
      )
    end

    def override_attributes=(attrs)
      override_attributes(attrs)
    end

    def cookbook_versions(arg = nil)
      set_or_return(
        :cookbook_versions,
        arg,
        {
          :kind_of => Hash,
          :callbacks => {
            "should be a valid set of cookbook version requirements" => lambda { |cv| Chef::Environment.validate_cookbook_versions(cv) }
          },
        },
      )
    end

    def cookbook(cookbook, version)
      validate({
        :version => version
      }, {
        :version => {
          :callbacks => { "should be a valid version requirement" => lambda { |v| Chef::Environment.validate_cookbook_version(v) } }
        }
      },)
      @cookbook_versions[cookbook] = version
    end

    def to_hash
      result = {
        "name" => @name,
        "description" => @description,
        "cookbook_versions" => @cookbook_versions,
        "json_class" => self.class.name,
        "chef_type" => "environment",
        "default_attributes" => @default_attributes,
        "override_attributes" => @override_attributes,
      }
      result
    end

    def to_json(*a)
      Chef::JSONCompat.to_json(to_hash, *a)
    end

    def update_from!(o)
      description(o.description)
      cookbook_versions(o.cookbook_versions)
      default_attributes(o.default_attributes)
      override_attributes(o.override_attributes)
      self
    end

    def update_attributes_from_params(params)
      unless params[:default_attributes].nil? || params[:default_attributes].size == 0
        default_attributes(Chef::JSONCompat.from_json(params[:default_attributes]))
      end
      unless params[:override_attributes].nil? || params[:override_attributes].size == 0
        override_attributes(Chef::JSONCompat.from_json(params[:override_attributes]))
      end
    end

    def update_from_params(params)
      # reset because everything we need will be in the params, this is necessary because certain constraints
      # may have been removed in the params and need to be removed from cookbook_versions as well.
      bkup_cb_versions = cookbook_versions
      cookbook_versions(Hash.new)
      valid = true

      begin
        name(params[:name])
      rescue Chef::Exceptions::ValidationFailed => e
        invalid_fields[:name] = e.message
        valid = false
      end
      description(params[:description])

      unless params[:cookbook_version].nil?
        params[:cookbook_version].each do |index, cookbook_constraint_spec|
          unless cookbook_constraint_spec.nil? || cookbook_constraint_spec.size == 0
            valid = valid && update_cookbook_constraint_from_param(index, cookbook_constraint_spec)
          end
        end
      end

      update_attributes_from_params(params)

      valid = validate_required_attrs_present && valid
      cookbook_versions(bkup_cb_versions) unless valid # restore the old cookbook_versions if valid is false
      valid
    end

    def update_cookbook_constraint_from_param(index, cookbook_constraint_spec)
      valid = true
      md = cookbook_constraint_spec.match(COMBINED_COOKBOOK_CONSTRAINT)
      if md.nil? || md[2].nil?
        valid = false
        add_cookbook_constraint_error(index, cookbook_constraint_spec)
      elsif self.class.validate_cookbook_version(md[2])
        cookbook_versions[md[1]] = md[2]
      else
        valid = false
        add_cookbook_constraint_error(index, cookbook_constraint_spec)
      end
      valid
    end

    def add_cookbook_constraint_error(index, cookbook_constraint_spec)
      invalid_fields[:cookbook_version] ||= {}
      invalid_fields[:cookbook_version][index] = "#{cookbook_constraint_spec} is not a valid cookbook constraint"
    end

    def invalid_fields
      @invalid_fields ||= {}
    end

    def validate_required_attrs_present
      if name.nil? || name.size == 0
        invalid_fields[:name] ||= "name cannot be empty"
        false
      else
        true
      end
    end

    def self.json_create(o)
      Chef.log_deprecation("Auto inflation of JSON data is deprecated. Please use Chef::Environment#from_hash")
      from_hash(o)
    end

    def self.from_hash(o)
      environment = new
      environment.name(o["name"])
      environment.description(o["description"])
      environment.cookbook_versions(o["cookbook_versions"])
      environment.default_attributes(o["default_attributes"])
      environment.override_attributes(o["override_attributes"])
      environment
    end

    def self.list(inflate = false)
      if inflate
        response = Hash.new
        Chef::Search::Query.new.search(:environment) do |e|
          response[e.name] = e unless e.nil?
        end
        response
      else
        chef_server_rest.get("environments")
      end
    end

    def self.load(name)
      if Chef::Config[:solo]
        load_from_file(name)
      else
        self.from_hash(chef_server_rest.get("environments/#{name}"))
      end
    end

    def self.load_from_file(name)
      unless File.directory?(Chef::Config[:environment_path])
        raise Chef::Exceptions::InvalidEnvironmentPath, "Environment path '#{Chef::Config[:environment_path]}' is invalid"
      end

      js_file = File.join(Chef::Config[:environment_path], "#{name}.json")
      rb_file = File.join(Chef::Config[:environment_path], "#{name}.rb")

      if File.exists?(js_file)
        # from_json returns object.class => json_class in the JSON.
        hash = Chef::JSONCompat.parse(IO.read(js_file))
        from_hash(hash)
      elsif File.exists?(rb_file)
        environment = Chef::Environment.new
        environment.name(name)
        environment.from_file(rb_file)
        environment
      else
        raise Chef::Exceptions::EnvironmentNotFound, "Environment '#{name}' could not be loaded from disk"
      end
    end

    def destroy
      chef_server_rest.delete("environments/#{@name}")
    end

    def save
      begin
        chef_server_rest.put("environments/#{@name}", self)
      rescue Net::HTTPServerException => e
        raise e unless e.response.code == "404"
        chef_server_rest.post("environments", self)
      end
      self
    end

    def create
      chef_server_rest.post("environments", self)
      self
    end

    def self.load_filtered_recipe_list(environment)
      chef_server_rest.get("environments/#{environment}/recipes")
    end

    def to_s
      @name
    end

    def self.validate_cookbook_versions(cv)
      return false unless cv.kind_of?(Hash)
      cv.each do |cookbook, version|
        return false unless Chef::Environment.validate_cookbook_version(version)
      end
      true
    end

    def self.validate_cookbook_version(version)
      begin
        if Chef::Config[:solo]
          raise Chef::Exceptions::IllegalVersionConstraint,
                "Environment cookbook version constraints not allowed in chef-solo"
        else
          Chef::VersionConstraint.new version
          true
        end
      rescue ArgumentError
        false
      end
    end

  end
end