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Austin Ziegler
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Formatting changes to the DN class.
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-115
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‎lib/net/ldap/dn.rb‎

Lines changed: 119 additions & 115 deletions
Original file line numberDiff line numberDiff line change
@@ -1,12 +1,10 @@
1-
# LDAP DN support classes
2-
#
1+
# -*- ruby encoding: utf-8 -*-
32

43
##
5-
# Objects of this class represent an LDAP DN.
6-
#
7-
# In LDAP-land, a DN ("Distinguished Name") is a unique identifier for an
8-
# entry within an LDAP directory. It is made up of a number of other
9-
# attributes strung together, to identify the entry in the tree.
4+
# Objects of this class represent an LDAP DN ("Distinguished Name"). A DN
5+
# ("Distinguished Name") is a unique identifier for an entry within an LDAP
6+
# directory. It is made up of a number of other attributes strung together,
7+
# to identify the entry in the tree.
108
#
119
# Each attribute that makes up a DN needs to have its value escaped so that
1210
# the DN is valid. This class helps take care of that.
@@ -18,10 +16,10 @@ class Net::LDAP::DN
1816
# Initialize a DN, escaping as required. Pass in attributes in name/value
1917
# pairs. If there is a left over argument, it will be appended to the dn
2018
# without escaping (useful for a base string).
21-
#
19+
#
2220
# Most uses of this class will be to escape a DN, rather than to parse it,
23-
# so storing the dn as an escaped String and parsing parts as required with
24-
# a state machine seems sensible.
21+
# so storing the dn as an escaped String and parsing parts as required
22+
# with a state machine seems sensible.
2523
def initialize(*args)
2624
buffer = StringIO.new
2725

@@ -42,7 +40,6 @@ def initialize(*args)
4240
##
4341
# Parse a DN into key value pairs using ASN from
4442
# http://tools.ietf.org/html/rfc2253 section 3.
45-
#
4643
def each_pair
4744
state = :key
4845
key = StringIO.new
@@ -51,118 +48,126 @@ def each_pair
5148

5249
@dn.each_char do |char|
5350
case state
54-
55-
when :key then case char
56-
when 'a'..'z','A'..'Z' then
57-
state = :key_normal
58-
key << char
59-
when '0'..'9' then
60-
state = :key_oid
61-
key << char
62-
when ' ' then state = :key
63-
else raise "DN badly formed"
51+
when :key then
52+
case char
53+
when 'a'..'z', 'A'..'Z' then
54+
state = :key_normal
55+
key << char
56+
when '0'..'9' then
57+
state = :key_oid
58+
key << char
59+
when ' ' then state = :key
60+
else raise "DN badly formed"
6461
end
65-
when :key_normal then case char
66-
when '=' then state = :value
67-
when 'a'..'z','A'..'Z','0'..'9','-',' ' then key << char
68-
else raise "DN badly formed"
62+
when :key_normal then
63+
case char
64+
when '=' then state = :value
65+
when 'a'..'z', 'A'..'Z', '0'..'9', '-', ' ' then key << char
66+
else raise "DN badly formed"
6967
end
70-
when :key_oid then case char
71-
when '=' then state = :value
72-
when '0'..'9','.',' ' then key << char
73-
else raise "DN badly formed"
68+
when :key_oid then
69+
case char
70+
when '=' then state = :value
71+
when '0'..'9', '.', ' ' then key << char
72+
else raise "DN badly formed"
7473
end
75-
76-
when :value then case char
77-
when '\\' then state = :value_normal_escape
78-
when '"' then state = :value_quoted
79-
when ' ' then state = :value
80-
when '#' then
81-
state = :value_hexstring
82-
value << char
83-
when ',' then
84-
state = :key
85-
yield key.string.strip, value.string.rstrip
86-
key = StringIO.new
87-
value = StringIO.new;
88-
else
89-
state = :value_normal
90-
value << char
74+
when :value then
75+
case char
76+
when '\\' then state = :value_normal_escape
77+
when '"' then state = :value_quoted
78+
when ' ' then state = :value
79+
when '#' then
80+
state = :value_hexstring
81+
value << char
82+
when ',' then
83+
state = :key
84+
yield key.string.strip, value.string.rstrip
85+
key = StringIO.new
86+
value = StringIO.new;
87+
else
88+
state = :value_normal
89+
value << char
9190
end
92-
93-
when :value_normal then case char
94-
when '\\' then state = :value_normal_escape
95-
when ',' then
96-
state = :key
97-
yield key.string.strip, value.string.rstrip
98-
key = StringIO.new
99-
value = StringIO.new;
100-
else value << char
91+
when :value_normal then
92+
case char
93+
when '\\' then state = :value_normal_escape
94+
when ',' then
95+
state = :key
96+
yield key.string.strip, value.string.rstrip
97+
key = StringIO.new
98+
value = StringIO.new;
99+
else value << char
101100
end
102-
when :value_normal_escape then case char
103-
when '0'..'9', 'a'..'f', 'A'..'F' then
104-
state = :value_normal_escape_hex
105-
hex_buffer = char
106-
else state = :value_normal; value << char
101+
when :value_normal_escape then
102+
case char
103+
when '0'..'9', 'a'..'f', 'A'..'F' then
104+
state = :value_normal_escape_hex
105+
hex_buffer = char
106+
else state = :value_normal; value << char
107107
end
108-
when :value_normal_escape_hex then case char
109-
when '0'..'9', 'a'..'f', 'A'..'F' then
110-
state = :value_normal
111-
value << "#{hex_buffer}#{char}".to_i(16).chr
112-
else raise "DN badly formed"
108+
when :value_normal_escape_hex then
109+
case char
110+
when '0'..'9', 'a'..'f', 'A'..'F' then
111+
state = :value_normal
112+
value << "#{hex_buffer}#{char}".to_i(16).chr
113+
else raise "DN badly formed"
113114
end
114-
115-
when :value_quoted then case char
116-
when '\\' then state = :value_quoted_escape
117-
when '"' then state = :value_end
118-
else value << char
115+
when :value_quoted then
116+
case char
117+
when '\\' then state = :value_quoted_escape
118+
when '"' then state = :value_end
119+
else value << char
119120
end
120-
when :value_quoted_escape then case char
121-
when '0'..'9', 'a'..'f', 'A'..'F' then
122-
state = :value_quoted_escape_hex
123-
hex_buffer = char
124-
else state = :value_quoted; value << char
121+
when :value_quoted_escape then
122+
case char
123+
when '0'..'9', 'a'..'f', 'A'..'F' then
124+
state = :value_quoted_escape_hex
125+
hex_buffer = char
126+
else
127+
state = :value_quoted;
128+
value << char
125129
end
126-
when :value_quoted_escape_hex then case char
127-
when '0'..'9', 'a'..'f', 'A'..'F' then
128-
state = :value_quoted
129-
value << "#{hex_buffer}#{char}".to_i(16).chr
130-
else raise "DN badly formed"
130+
when :value_quoted_escape_hex then
131+
case char
132+
when '0'..'9', 'a'..'f', 'A'..'F' then
133+
state = :value_quoted
134+
value << "#{hex_buffer}#{char}".to_i(16).chr
135+
else raise "DN badly formed"
131136
end
132-
133-
when :value_hexstring then case char
134-
when '0'..'9', 'a'..'f', 'A'..'F' then
135-
state = :value_hexstring_hex
136-
value << char
137-
when ' ' then state = :value_end
138-
when ',' then
139-
state = :key
140-
yield key.string.strip, value.string.rstrip
141-
key = StringIO.new
142-
value = StringIO.new;
143-
else raise "DN badly formed"
137+
when :value_hexstring then
138+
case char
139+
when '0'..'9', 'a'..'f', 'A'..'F' then
140+
state = :value_hexstring_hex
141+
value << char
142+
when ' ' then state = :value_end
143+
when ',' then
144+
state = :key
145+
yield key.string.strip, value.string.rstrip
146+
key = StringIO.new
147+
value = StringIO.new;
148+
else raise "DN badly formed"
144149
end
145-
when :value_hexstring_hex then case char
146-
when '0'..'9', 'a'..'f', 'A'..'F' then
147-
state = :value_hexstring
148-
value << char
149-
else raise "DN badly formed"
150+
when :value_hexstring_hex then
151+
case char
152+
when '0'..'9', 'a'..'f', 'A'..'F' then
153+
state = :value_hexstring
154+
value << char
155+
else raise "DN badly formed"
150156
end
151-
152-
when :value_end then case char
153-
when ' ' then state = :value_end
154-
when ',' then
155-
state = :key
156-
yield key.string.strip, value.string.rstrip
157-
key = StringIO.new
158-
value = StringIO.new;
159-
else raise "DN badly formed"
157+
when :value_end then
158+
case char
159+
when ' ' then state = :value_end
160+
when ',' then
161+
state = :key
162+
yield key.string.strip, value.string.rstrip
163+
key = StringIO.new
164+
value = StringIO.new;
165+
else raise "DN badly formed"
160166
end
161-
162-
else raise "Fell out of state machine"
167+
else raise "Fell out of state machine"
163168
end
164169
end
165-
170+
166171
# Last pair
167172
if [:value, :value_normal, :value_hexstring, :value_end].include? state
168173
yield key.string.strip, value.string.rstrip
@@ -186,9 +191,8 @@ def to_s
186191
end
187192

188193
# http://tools.ietf.org/html/rfc2253 section 2.4 lists these exceptions
189-
# for dn values. All of the following must be escaped in any normal
190-
# string using a single backslash ('\') as escape.
191-
#
194+
# for dn values. All of the following must be escaped in any normal string
195+
# using a single backslash ('\') as escape.
192196
ESCAPES = {
193197
',' => ',',
194198
'+' => '+',
@@ -198,13 +202,13 @@ def to_s
198202
'>' => '>',
199203
';' => ';',
200204
}
205+
201206
# Compiled character class regexp using the keys from the above hash, and
202207
# checking for a space or # at the start, or space at the end, of the
203208
# string.
204-
ESCAPE_RE = Regexp.new(
205-
"(^ |^#| $|[" +
206-
ESCAPES.keys.map { |e| Regexp.escape(e) }.join +
207-
"])")
209+
ESCAPE_RE = Regexp.new("(^ |^#| $|[" +
210+
ESCAPES.keys.map { |e| Regexp.escape(e) }.join +
211+
"])")
208212

209213
##
210214
# Escape a string for use in a DN value

‎spec/unit/ldap/dn_spec.rb‎

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -4,16 +4,20 @@
44
describe Net::LDAP::DN do
55
describe "<- .construct" do
66
attr_reader :dn
7+
78
before(:each) do
89
@dn = Net::LDAP::DN.new('cn', ',+"\\<>;', 'ou=company')
910
end
11+
1012
it "should construct a Net::LDAP::DN" do
1113
dn.should be_an_instance_of(Net::LDAP::DN)
1214
end
15+
1316
it "should escape all the required characters" do
1417
dn.to_s.should == 'cn=\\,\\+\\"\\\\\\<\\>\\;,ou=company'
1518
end
1619
end
20+
1721
describe "<- .to_a" do
1822
context "parsing" do
1923
{
@@ -23,12 +27,15 @@
2327
}.each do |key, value|
2428
context "(#{key})" do
2529
attr_reader :dn
30+
2631
before(:each) do
2732
@dn = Net::LDAP::DN.new(key)
2833
end
34+
2935
it "should decode into a Net::LDAP::DN" do
3036
dn.should be_an_instance_of(Net::LDAP::DN)
3137
end
38+
3239
it "should return the correct array" do
3340
dn.to_a.should == value
3441
end
@@ -48,12 +55,15 @@
4855
].each do |value|
4956
context "(#{value})" do
5057
attr_reader :dn
58+
5159
before(:each) do
5260
@dn = Net::LDAP::DN.new(value)
5361
end
62+
5463
it "should decode into a Net::LDAP::DN" do
5564
dn.should be_an_instance_of(Net::LDAP::DN)
5665
end
66+
5767
it "should raise an error on parsing" do
5868
lambda { dn.to_a }.should raise_error
5969
end

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