Class: Parse_Dhcp::DHCP

Inherits:
Object
  • Object
show all
Defined in:
lib/parse_dhcp.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path) ⇒ DHCP

Function constructor of DHCP



11
12
13
14
15
 
# File 'lib/parse_dhcp.rb', line 11

def initialize(path)
  @datas = Parse_Dhcp::DHCP.read_file(path)
  @array_net = []

end

Instance Attribute Details

#datas ⇒ Object

Returns the value of attribute datas.



8
9
10
 
# File 'lib/parse_dhcp.rb', line 8

def datas
  @datas
end

#net ⇒ Object

Set data in object



357
358
359
 
# File 'lib/parse_dhcp.rb', line 357

def net
  @net
end

Class Method Details

.get_authoritative(subnet) ⇒ Object 



113
114
115
116
117
118
119
120
121
122
123
124
 
# File 'lib/parse_dhcp.rb', line 113

def self.get_authoritative(subnet)
  if subnet.nil?
    return false
  else
    authori = Parse_Dhcp::DHCP.get_list_option(subnet)
    if !authori["authoritative"].nil?
      return true
    else
      return false
    end
  end
end

.get_list_option(subnet, condition = false) ⇒ Object

Get all config option of subnet



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
 
# File 'lib/parse_dhcp.rb', line 127

def self.get_list_option(subnet, condition = false)
  if subnet.nil?
    return false
  else
    option = {}
    differ = {}
    i = 0
    line_number = subnet["option"].lines.count
    if !condition
      while i < line_number do
        if !subnet["option"].lines[i].strip.eql?("")
          substring = subnet["option"].lines[i].gsub("\;","")
          array = substring.split
          if array.include?("option")
            option["#{array[1]}"] = "#{array[2]}"
          elsif array.include?("authoritative")
            option["#{array[0]}"] = true
          else
            option["#{array[0]}"] = "#{array[1]}"
          end
        end
        i += 1
      end

      # Delete trash element  
      option.delete("}")

      return option
    else 
      while i < line_number do 
        if !subnet["option"].lines[i].strip.eql?("")
          substring = subnet["option"].lines[i].gsub("\;","")
          array = substring.split
          if array.include?("option")
            option["#{array[1]}"] = "#{array[2]}"
          elsif array.include?("authoritative")
            differ["#{array[0]}"] = true
          else
            differ["#{array[0]}"] = "#{array[1]}"
          end
        end
        i += 1
      end

      # Delete trash element  
      differ.delete("}")

      return [option, differ]
    end
  end
end

.get_netmask(subnet) ⇒ Object 



104
105
106
107
108
109
110
111
 
# File 'lib/parse_dhcp.rb', line 104

def self.get_netmask(subnet)
  if subnet.nil?
    return false
  else
    array = subnet["subnet"].split
    address = array[3]
  end
end

.get_pool(subnet) ⇒ Object

Get host. Host is Hash



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
 
# File 'lib/parse_dhcp.rb', line 180

def self.get_pool(subnet) 
  if subnet.nil?
    return false
  else
    pool = { "hosts" => {} }
    count = 0
    counter = 0
    check_first = true
    checkhost = true
    i = 0
    line_number = subnet["pool"].lines.count
    lines = subnet["pool"].lines

    while i < line_number do
      if !lines[i].eql?("\n")
        line = lines[i].gsub("\n","")
        # valid block 
        last = line.strip.slice(-1,1)
        if last.eql?("{")
          check_first = false
          count   += 1
          counter -= 1
          pool["hosts"]["host#{count}"] = {}
          if counter == -1
            item = line.split
            pool["hosts"]["host#{count}"]["#{item[0]}"] = item [1]
            checkhost = false
          end
        elsif last.eql?("}")
          counter += 1
        end

        # Create new host
        if counter == 0 && !line.eql?("}")
          if check_first
            substring = line.gsub("\;","")
            item = substring.split
            if item.include?("range")
              pool["#{item[0]}"] = { "min" => item[1], "max" => item[2] }
            else
              pool["#{item[0]}"] = item[1]
            end
          end
        end
        # Get data
        if !checkhost
          substring = line.gsub("\;","")
          item = substring.split
          if item.include?("hardware")
            pool["hosts"]["host#{count}"]["#{item[0]}_#{item[1]}"] = item[2]
          else
            pool["hosts"]["host#{count}"]["#{item[0]}"] = item[1]
          end
        end
      end
      i += 1
    end
    
    # Delete trash element
    [*1..count].each do |i|
      pool["hosts"]["host#{i}"].tap {|key| 
        key.delete("}")
      }
    end

    return pool
  end
end

.get_sub_mask(subnet) ⇒ Object

Get subnet and netmask



85
86
87
88
89
90
91
92
93
 
# File 'lib/parse_dhcp.rb', line 85

def self.get_sub_mask(subnet)
  if subnet.nil?
    return false
  else
    array = subnet["subnet"].split
    address = { "#{array[0]}" => array[1],
                "#{array[2]}" => array[3] }
  end
end

.get_subnet(subnet) ⇒ Object 



95
96
97
98
99
100
101
102
 
# File 'lib/parse_dhcp.rb', line 95

def self.get_subnet(subnet)
  if subnet.nil?
    return false
  else
    array = subnet["subnet"].split
    address = array[1]
  end
end

.read_file(path) ⇒ Object

Read file config return Net. Net is hash



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
 
# File 'lib/parse_dhcp.rb', line 18

def self.read_file(path)
            
  str = ""
  count = 0
  counter = 0
  object = Hash.new

  begin
    if path.nil? || path.empty?
      path = "../examples/default_dhcp.conf"
    end
    file = File.new("#{path}", "r")
    while (line = file.gets)
      if !line.eql?("\n") && !line.eql?("")
        element = line.strip.split
        if !element.include?("#")
          # Set new net
          if counter == 0
            count += 1
            checkoption = false 
            checkhost = false
            checkpool = true
            checksub = true
            object["net#{count}"] = { "subnet" => "",
                                      "option" => "",
                                      "pool"   => "" 
                                    }

          end

          # Filter subnet 
          last = line.strip.slice(-1,1)
          checkoption = true if !checksub
          checkhost = true if !checkpool
          checkpool = true if 
          if last.eql?("{")
            counter -= 1
            if counter == -1
              object["net#{count}"]["subnet"] = line.gsub("\{\n","")
              checksub = false
            end
            if counter == -2
              checkpool = false
            end
          elsif last.eql?("}")
            counter += 1
          end

          # Get data
          if counter == -1 && checkoption
            object["net#{count}"]["option"] = object["net#{count}"]["option"] + "#{line}" 
          elsif checkhost
            object["net#{count}"]["pool"]   = object["net#{count}"]["pool"] + "#{line}"
          end
        end
      end
    end
    file.close
  rescue => err
    puts "Exception: #{err}"
    err
  end

  return object
end

Instance Method Details

#allow ⇒ Object

Get allow



324
325
326
327
328
329
330
331
332
333
334
335
 
# File 'lib/parse_dhcp.rb', line 324

def allow
  allow = []
  index = 0
  while index < @datas.count
    index += 1
    data = Parse_Dhcp::DHCP.get_pool(@datas["net#{index}"])
    if !data["allow"].nil?
      allow << data["allow"]
    end
  end
  return allow
end

#authoritative ⇒ Object

Get value authoritative



283
284
285
286
287
288
289
290
291
 
# File 'lib/parse_dhcp.rb', line 283

def authoritative
  authori = []
  index = 0
  while index < @datas.count
    index += 1
    authori << Parse_Dhcp::DHCP.get_authoritative(@datas["net#{index}"])
  end
  return authori
end

#data ⇒ Object

Return data in file



352
353
354
 
# File 'lib/parse_dhcp.rb', line 352

def data
  @datas
end

#denny ⇒ Object

Get allow



338
339
340
341
342
343
344
345
346
347
348
349
 
# File 'lib/parse_dhcp.rb', line 338

def denny
  denny = []
  index = 0
  while index < @datas.count
    index += 1
    data = Parse_Dhcp::DHCP.get_pool(@datas["net#{index}"])
    if !data["denny"].nil?
      denny << data["denny"]
    end
  end
  return denny
end

#netmasks ⇒ Object

Get list netmask



261
262
263
264
265
266
267
268
269
 
# File 'lib/parse_dhcp.rb', line 261

def netmasks
  netmask = []
  index = 0
  while index < @datas.count
    index += 1
    netmask << Parse_Dhcp::DHCP.get_netmask(@datas["net#{index}"])
  end
  return netmask
end

#options ⇒ Object

Get list option



272
273
274
275
276
277
278
279
280
 
# File 'lib/parse_dhcp.rb', line 272

def options
  option = []
  index = 0
  while index < @datas.count
    index += 1
    option << Parse_Dhcp::DHCP.get_list_option(@datas["net#{index}"])
  end
  return option
end

#pools ⇒ Object

Get pool



294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
 
# File 'lib/parse_dhcp.rb', line 294

def pools
  pool  = []
  index = 0
  while index < @datas.count
    index += 1
    data = Parse_Dhcp::DHCP.get_pool(@datas["net#{index}"])
    i = 0
    tmp_hash = {}
    while i < data["hosts"].count
      i += 1
      tmp_hash["#{i}"] = data["hosts"]["host#{i}"]
    end
    pool << tmp_hash
  end
  return pool
end

#ranges ⇒ Object

Get range



312
313
314
315
316
317
318
319
320
321
 
# File 'lib/parse_dhcp.rb', line 312

def ranges
  range = []
  index = 0
  while index < @datas.count
    index += 1
    data = Parse_Dhcp::DHCP.get_pool(@datas["net#{index}"])
    range << "#{data["range"]["min"]} #{data["range"]["max"]}"
  end
  return range
end

#subnets ⇒ Object

Get list subnet



250
251
252
253
254
255
256
257
258
 
# File 'lib/parse_dhcp.rb', line 250

def subnets
  subnet = []
  index = 0
  while index < @datas.count
    index += 1
    subnet << Parse_Dhcp::DHCP.get_subnet(@datas["net#{index}"])
  end
  return subnet
end

#write(file_name, arr_net) ⇒ Object

Write file



390
391
392
393
394
 
# File 'lib/parse_dhcp.rb', line 390

def write(file_name, arr_net)
  if !arr_net.empty?
    result = WriteConf.write_file(file_name, arr_net)
  end
end