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
|
#
# Author:: Adam Jacob (<adam@chef.io>)
# Copyright:: Copyright 2008-2018, 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_relative "../config"
require_relative "../exceptions"
require_relative "../server_api"
require "uri" unless defined?(URI)
require "addressable/uri" unless defined?(Addressable::URI)
class Chef
class Search
class Query
attr_reader :config
def initialize(url = nil, config: Chef::Config)
@config = config
@url = url
end
def rest
@rest ||= Chef::ServerAPI.new(@url || @config[:chef_server_url])
end
#
# New search input, designed to be backwards compatible with the old method signature
# 'type' and 'query' are the same as before, args now will accept either a Hash of
# search arguments with symbols as the keys (ie :sort, :start, :rows) and a :filter_result
# option.
#
# :filter_result should be in the format of another Hash with the structure of:
# {
# :returned_name1 => ["path", "to", "variable"],
# :returned_name2 => ["shorter", "path"]
# }
# a real world example might be something like:
# {
# :ip_address => ["ipaddress"],
# :ruby_version => ["languages", "ruby", "version"]
# }
# this will bring back 2 variables 'ip_address' and 'ruby_version' with whatever value was found
# an example of the returned json may be:
# {"ip_address":"127.0.0.1", "ruby_version": "1.9.3"}
#
def search(type, query = "*:*", *args, &block)
validate_type(type)
args_h = hashify_args(*args)
if args_h[:fuzz]
if type == :node
query = fuzzify_node_query(query)
end
# FIXME: can i haz proper ruby-2.x named parameters someday plz?
args_h = args_h.reject { |k, v| k == :fuzz }
end
# Set default rows parameter to 1000. This is the default in
# Chef Server, but we set it explicitly here so that we can
# confidently advance our start parameter.
args_h[:rows] ||= 1000
response = call_rest_service(type, query: query, **args_h)
if block
response["rows"].each { |row| yield(row) if row }
#
# args_h[:rows] and args_h[:start] are the page size and
# start position requested of the search index backing the
# search API.
#
# The response may contain fewer rows than arg_h[:rows] if
# the page of index results included deleted nodes which
# have been filtered from the returned data. In this case,
# we still want to start the next page at start +
# args_h[:rows] to avoid asking the search backend for
# overlapping pages (which could result in duplicates).
#
next_start = response["start"] + args_h[:rows]
unless next_start >= response["total"]
args_h[:start] = next_start
search(type, query, args_h, &block)
end
true
else
[ response["rows"], response["start"], response["total"] ]
end
end
private
def fuzzify_node_query(query)
if query !~ /:/
"tags:*#{query}* OR roles:*#{query}* OR fqdn:*#{query}* OR addresses:*#{query}* OR policy_name:*#{query}* OR policy_group:*#{query}*"
else
query
end
end
def validate_type(t)
unless t.kind_of?(String) || t.kind_of?(Symbol)
msg = "Invalid search object type #{t.inspect} (#{t.class}), must be a String or Symbol." +
"Usage: search(:node, QUERY[, OPTIONAL_ARGS])" +
" `knife search environment QUERY (options)`"
raise Chef::Exceptions::InvalidSearchQuery, msg
end
end
def hashify_args(*args)
return Hash.new if args.empty?
return args.first if args.first.is_a?(Hash)
args_h = Hash.new
# If we have 4 arguments, the first is the now-removed sort option, so
# just ignore it.
args.pop(0) if args.length == 4
args_h[:start] = args[0] if args[0]
args_h[:rows] = args[1]
args_h[:filter_result] = args[2]
args_h
end
QUERY_PARAM_VALUE = Addressable::URI::CharacterClasses::QUERY + "\\&\\;"
def escape_value(s)
s && Addressable::URI.encode_component(s.to_s, QUERY_PARAM_VALUE)
end
def create_query_string(type, query, rows, start)
qstr = "search/#{type}?q=#{escape_value(query)}"
qstr += "&start=#{escape_value(start)}" if start
qstr += "&rows=#{escape_value(rows)}" if rows
qstr
end
def call_rest_service(type, query: "*:*", rows: nil, start: 0, filter_result: nil)
query_string = create_query_string(type, query, rows, start)
if filter_result
response = rest.post(query_string, filter_result)
# response returns rows in the format of
# { "url" => url_to_node, "data" => filter_result_hash }
response["rows"].map! { |row| row["data"] }
else
response = rest.get(query_string)
response["rows"].map! do |row|
case type.to_s
when "node"
Chef::Node.from_hash(row)
when "role"
Chef::Role.from_hash(row)
when "environment"
Chef::Environment.from_hash(row)
when "client"
Chef::ApiClient.from_hash(row)
else
Chef::DataBagItem.from_hash(row)
end
end
end
response
end
end
end
end
|
