Adding experimental RFC4515 extensible filtering.
Austin Ziegler
Kaspar Schiess
parent
1dbf5908ae
commit
3e07125214
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@ -18,6 +18,8 @@
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* Cleaned up Net::LDAP::Filter::FilterParser to handle branches better. Fixed
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some of the regular expressions to be more canonically defined.
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* Cleaned up the string representation of Filter objects.
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* Added experimental support for RFC4515 extensible matching (e.g.,
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"(cn:caseExactMatch:=Fred Flintstone)"); provided by "nowhereman".
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* Added or revised documentation:
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* Core class extension methods under Net::BER.
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* Extended unit testing:
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@ -43,7 +43,7 @@
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class Net::LDAP::Filter
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##
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# Known filter types.
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FilterTypes = [ :ne, :eq, :ge, :le, :and, :or, :not ]
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FilterTypes = [ :ne, :eq, :ge, :le, :and, :or, :not, :ex ]
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def initialize(op, left, right) #:nodoc:
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unless FilterTypes.include?(op)
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@ -83,6 +83,55 @@ class Net::LDAP::Filter
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new(:eq, attribute, value)
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end
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##
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# Creates a Filter object indicating extensible comparison. This Filter
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# object is currently considered EXPERIMENTAL.
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#
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# sample_attributes = ['cn:fr', 'cn:fr.eq',
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# 'cn:1.3.6.1.4.1.42.2.27.9.4.49.1.3', 'cn:dn:fr', 'cn:dn:fr.eq']
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# attr = sample_attributes.first # Pick an extensible attribute
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# value = 'roberts'
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#
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# filter = "#{attr}:=#{value}" # Basic String Filter
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# filter = Net::LDAP::Filter.ex(attr, value) # Net::LDAP::Filter
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#
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# # Perform a search with the Extensible Match Filter
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# Net::LDAP.search(:filter => filter)
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#--
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# The LDIF required to support the above examples on the OpenDS LDAP
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# server:
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#
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# version: 1
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#
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# dn: dc=example,dc=com
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# objectClass: domain
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# objectClass: top
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# dc: example
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#
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# dn: ou=People,dc=example,dc=com
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# objectClass: organizationalUnit
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# objectClass: top
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# ou: People
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#
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# dn: uid=1,ou=People,dc=example,dc=com
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# objectClass: person
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# objectClass: organizationalPerson
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# objectClass: inetOrgPerson
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# objectClass: top
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# cn:: csO0YsOpcnRz
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# sn:: YsO0YiByw7Riw6lydHM=
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# givenName:: YsO0Yg==
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# uid: 1
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#
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# =Refs:
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# * http://www.ietf.org/rfc/rfc2251.txt
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# * http://www.novell.com/documentation/edir88/edir88/?page=/documentation/edir88/edir88/data/agazepd.html
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# * https://docs.opends.org/2.0/page/SearchingUsingInternationalCollationRules
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#++
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def ex(attribute, value)
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new(:ex, attribute, value)
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end
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##
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# Creates a Filter object indicating that a particular attribute value
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# is either not present or does not match a particular string; see
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@ -280,9 +329,9 @@ class Net::LDAP::Filter
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def ==(filter)
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# 20100320 AZ: We need to come up with a better way of doing this. This
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# is just nasty.
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str = "[@op,@left,@right]"
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self.instance_eval(str) == filter.instance_eval(str)
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end
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str = "[@op,@left,@right]"
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self.instance_eval(str) == filter.instance_eval(str)
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end
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def to_raw_rfc2254
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case @op
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@ -290,19 +339,20 @@ class Net::LDAP::Filter
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"!(#{@left}=#{@right})"
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when :eq
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"#{@left}=#{@right}"
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when :ex
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"#{@left}:=#{@right}"
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when :ge
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"#{@left}>=#{@right}"
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when :le
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"#{@left}<=#{@right}"
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when :and
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"&(#{@left.__send__(:to_raw_rfc2254)})(#{@right.__send__(:to_raw_rfc2254)})"
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"&(#{@left.to_raw_rfc2254})(#{@right.to_raw_rfc2254})"
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when :or
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"|(#{@left.__send__(:to_raw_rfc2254)})(#{@right.__send__(:to_raw_rfc2254)})"
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"|(#{@left.to_raw_rfc2254})(#{@right.to_raw_rfc2254})"
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when :not
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"!(#{@left.__send__(:to_raw_rfc2254)})"
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"!(#{@left.to_raw_rfc2254})"
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end
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end
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private :to_raw_rfc2254
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##
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# Converts the Filter object to an RFC 2254-compatible text format.
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@ -317,21 +367,21 @@ class Net::LDAP::Filter
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##
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# Converts the filter to BER format.
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#--
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# to_ber
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# Filter ::=
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# CHOICE {
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# and [0] SET OF Filter,
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# or [1] SET OF Filter,
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# not [2] Filter,
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# equalityMatch [3] AttributeValueAssertion,
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# substrings [4] SubstringFilter,
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# greaterOrEqual [5] AttributeValueAssertion,
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# lessOrEqual [6] AttributeValueAssertion,
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# present [7] AttributeType,
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# approxMatch [8] AttributeValueAssertion
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# and [0] SET OF Filter,
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# or [1] SET OF Filter,
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# not [2] Filter,
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# equalityMatch [3] AttributeValueAssertion,
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# substrings [4] SubstringFilter,
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# greaterOrEqual [5] AttributeValueAssertion,
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# lessOrEqual [6] AttributeValueAssertion,
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# present [7] AttributeType,
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# approxMatch [8] AttributeValueAssertion,
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# extensibleMatch [9] MatchingRuleAssertion
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# }
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#
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# SubstringFilter
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# SubstringFilter ::=
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# SEQUENCE {
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# type AttributeType,
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# SEQUENCE OF CHOICE {
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@ -340,6 +390,23 @@ class Net::LDAP::Filter
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# final [2] LDAPString
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# }
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# }
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#
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# MatchingRuleAssertion ::=
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# SEQUENCE {
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# matchingRule [1] MatchingRuleId OPTIONAL,
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# type [2] AttributeDescription OPTIONAL,
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# matchValue [3] AssertionValue,
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# dnAttributes [4] BOOLEAN DEFAULT FALSE
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# }
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#
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# Matching Rule Suffixes
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# Less than [.1] or .[lt]
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# Less than or equal to [.2] or [.lte]
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# Equality [.3] or [.eq] (default)
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# Greater than or equal to [.4] or [.gte]
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# Greater than [.5] or [.gt]
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# Substring [.6] or [.sub]
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#
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#++
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def to_ber
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case @op
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@ -381,6 +448,20 @@ class Net::LDAP::Filter
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else # equality
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[@left.to_s.to_ber, unescape(@right).to_ber].to_ber_contextspecific(3)
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end
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when :ex
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seq = []
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unless @left =~ /^([-;\d\w]*)(:dn)?(:(\w+|[.\d\w]+))?$/
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raise Net::LDAP::LdapError, "Bad attribute #{@left}"
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end
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type, dn, rule = $1, $2, $4
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seq << rule.to_ber_contextspecific(1) unless rule.to_s.empty? # matchingRule
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seq << type.to_ber_contextspecific(2) unless type.to_s.empty? # type
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seq << unescape(@right).to_ber_contextspecific(3) # matchingValue
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seq << "1".to_ber_contextspecific(4) unless dn.to_s.empty? # dnAttributes
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seq.to_ber_contextspecific(9)
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when :ge
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[@left.to_s.to_ber, unescape(@right).to_ber].to_ber_contextspecific(5)
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when :le
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@ -407,10 +488,10 @@ class Net::LDAP::Filter
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# some desired application-defined processing, and may return a
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# locally-meaningful object that will appear as a parameter in the :and,
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# :or and :not operations detailed below.
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#
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# A typical object to return from the user-supplied block is an array of
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# Net::LDAP::Filter objects.
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#
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#
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# A typical object to return from the user-supplied block is an array of
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# Net::LDAP::Filter objects.
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#
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# These are the possible values that may be passed to the user-supplied
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# block:
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# * :equalityMatch (the arguments will be an attribute name and a value
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@ -428,26 +509,26 @@ class Net::LDAP::Filter
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# a recursive call to #execute, with the same block; and
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# * :not (one argument, which is an object returned from a recursive
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# call to #execute with the the same block.
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def execute(&block)
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case @op
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when :eq
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if @right == "*"
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yield :present, @left
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elsif @right.index '*'
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yield :substrings, @left, @right
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else
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yield :equalityMatch, @left, @right
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end
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when :ge
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yield :greaterOrEqual, @left, @right
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when :le
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yield :lessOrEqual, @left, @right
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when :or, :and
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yield @op, (@left.execute(&block)), (@right.execute(&block))
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when :not
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yield @op, (@left.execute(&block))
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end || []
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end
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def execute(&block)
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case @op
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when :eq
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if @right == "*"
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yield :present, @left
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elsif @right.index '*'
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yield :substrings, @left, @right
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else
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yield :equalityMatch, @left, @right
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end
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when :ge
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yield :greaterOrEqual, @left, @right
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when :le
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yield :lessOrEqual, @left, @right
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when :or, :and
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yield @op, (@left.execute(&block)), (@right.execute(&block))
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when :not
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yield @op, (@left.execute(&block))
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end || []
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end
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##
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# This is a private helper method for dealing with chains of ANDs and ORs
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@ -588,9 +669,9 @@ class Net::LDAP::Filter
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# This parses a given expression inside of parentheses.
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def parse_filter_branch(scanner)
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scanner.scan(/\s*/)
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if token = scanner.scan(/[-\w_]+/)
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if token = scanner.scan(/[-\w\d_:.]*[\d\w]/)
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scanner.scan(/\s*/)
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if op = scanner.scan(/<=|>=|!=|=/)
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if op = scanner.scan(/<=|>=|!=|:=|=/)
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scanner.scan(/\s*/)
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if value = scanner.scan(/(?:[-\w*.+@=,#\$%&!\s]|\\[a-fA-F\d]{2})+/)
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# 20100313 AZ: Assumes that "(uid=george*)" is the same as
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@ -606,6 +687,8 @@ class Net::LDAP::Filter
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Net::LDAP::Filter.le(token, value)
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when ">="
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Net::LDAP::Filter.ge(token, value)
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when ":="
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Net::LDAP::Filter.ex(token, value)
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end
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end
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end
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@ -1,68 +1,97 @@
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# $Id: testfilter.rb 245 2007-05-05 02:44:32Z blackhedd $
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require 'common'
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class TestFilter < Test::Unit::TestCase
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Filter = Net::LDAP::Filter
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# Note that the RFC doesn't define either less-than or greater-than.
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def test_rfc_2254
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Net::LDAP::Filter.from_rfc2254( " ( uid=george* ) " )
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Net::LDAP::Filter.from_rfc2254( "uid!=george*" )
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Net::LDAP::Filter.from_rfc2254( "uid <= george*" )
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Net::LDAP::Filter.from_rfc2254( "uid>=george*" )
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Net::LDAP::Filter.from_rfc2254( "uid!=george*" )
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def test_bug_7534_rfc2254
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assert_equal("(cn=Tim Wizard)",
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Filter.from_rfc2254("(cn=Tim Wizard)").to_rfc2254)
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end
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Net::LDAP::Filter.from_rfc2254( "(& (uid!=george* ) (mail=*))" )
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Net::LDAP::Filter.from_rfc2254( "(| (uid!=george* ) (mail=*))" )
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Net::LDAP::Filter.from_rfc2254( "(! (mail=*))" )
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def test_invalid_filter_string
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assert_raises(Net::LDAP::LdapError) { Filter.from_rfc2254("") }
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end
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def test_invalid_filter
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assert_raises(Net::LDAP::LdapError) {
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# This test exists to prove that our constructor blocks unknown filter
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# types. All filters must be constructed using helpers.
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Filter.__send__(:new, :xx, nil, nil)
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}
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end
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def test_to_s
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assert_equal("(uid=george *)", Filter.eq("uid", "george *").to_s)
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end
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def test_c2
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assert_equal("(uid=george *)",
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Filter.from_rfc2254("uid=george *").to_rfc2254)
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assert_equal("(uid:=george *)",
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Filter.from_rfc2254("uid:=george *").to_rfc2254)
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assert_equal("(uid=george*)",
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Filter.from_rfc2254(" ( uid = george* ) ").to_rfc2254)
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assert_equal("(!(uid=george*))",
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Filter.from_rfc2254("uid!=george*").to_rfc2254)
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assert_equal("(uid<=george*)",
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Filter.from_rfc2254("uid <= george*").to_rfc2254)
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assert_equal("(uid>=george*)",
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Filter.from_rfc2254("uid>=george*").to_rfc2254)
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assert_equal("(&(uid=george*)(mail=*))",
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Filter.from_rfc2254("(& (uid=george* ) (mail=*))").to_rfc2254)
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assert_equal("(|(uid=george*)(mail=*))",
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Filter.from_rfc2254("(| (uid=george* ) (mail=*))").to_rfc2254)
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assert_equal("(!(mail=*))",
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Filter.from_rfc2254("(! (mail=*))").to_rfc2254)
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end
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def test_filters_from_ber
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[
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Net::LDAP::Filter.eq( "objectclass", "*" ),
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Net::LDAP::Filter.pres( "objectclass" ),
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Net::LDAP::Filter.eq( "objectclass", "ou" ),
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Net::LDAP::Filter.ge( "uid", "500" ),
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Net::LDAP::Filter.le( "uid", "500" ),
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(~ Net::LDAP::Filter.pres( "objectclass" )),
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(Net::LDAP::Filter.pres( "objectclass" ) & Net::LDAP::Filter.pres( "ou" )),
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(Net::LDAP::Filter.pres( "objectclass" ) & Net::LDAP::Filter.pres( "ou" ) & Net::LDAP::Filter.pres("sn")),
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(Net::LDAP::Filter.pres( "objectclass" ) | Net::LDAP::Filter.pres( "ou" ) | Net::LDAP::Filter.pres("sn")),
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Net::LDAP::Filter.eq("objectclass", "*"),
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Net::LDAP::Filter.pres("objectclass"),
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Net::LDAP::Filter.eq("objectclass", "ou"),
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Net::LDAP::Filter.ge("uid", "500"),
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Net::LDAP::Filter.le("uid", "500"),
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(~ Net::LDAP::Filter.pres("objectclass")),
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(Net::LDAP::Filter.pres("objectclass") & Net::LDAP::Filter.pres("ou")),
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(Net::LDAP::Filter.pres("objectclass") & Net::LDAP::Filter.pres("ou") & Net::LDAP::Filter.pres("sn")),
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(Net::LDAP::Filter.pres("objectclass") | Net::LDAP::Filter.pres("ou") | Net::LDAP::Filter.pres("sn")),
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Net::LDAP::Filter.eq( "objectclass", "*aaa" ),
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Net::LDAP::Filter.eq( "objectclass", "*aaa*bbb" ),
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Net::LDAP::Filter.eq( "objectclass", "*aaa*bbb*ccc" ),
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Net::LDAP::Filter.eq( "objectclass", "aaa*bbb" ),
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Net::LDAP::Filter.eq( "objectclass", "aaa*bbb*ccc" ),
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Net::LDAP::Filter.eq( "objectclass", "abc*def*1111*22*g" ),
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Net::LDAP::Filter.eq( "objectclass", "*aaa*" ),
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Net::LDAP::Filter.eq( "objectclass", "*aaa*bbb*" ),
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Net::LDAP::Filter.eq( "objectclass", "*aaa*bbb*ccc*" ),
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Net::LDAP::Filter.eq( "objectclass", "aaa*" ),
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Net::LDAP::Filter.eq( "objectclass", "aaa*bbb*" ),
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Net::LDAP::Filter.eq( "objectclass", "aaa*bbb*ccc*" ),
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Net::LDAP::Filter.eq("objectclass", "*aaa"),
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Net::LDAP::Filter.eq("objectclass", "*aaa*bbb"),
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Net::LDAP::Filter.eq("objectclass", "*aaa*bbb*ccc"),
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Net::LDAP::Filter.eq("objectclass", "aaa*bbb"),
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Net::LDAP::Filter.eq("objectclass", "aaa*bbb*ccc"),
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Net::LDAP::Filter.eq("objectclass", "abc*def*1111*22*g"),
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Net::LDAP::Filter.eq("objectclass", "*aaa*"),
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Net::LDAP::Filter.eq("objectclass", "*aaa*bbb*"),
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Net::LDAP::Filter.eq("objectclass", "*aaa*bbb*ccc*"),
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Net::LDAP::Filter.eq("objectclass", "aaa*"),
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Net::LDAP::Filter.eq("objectclass", "aaa*bbb*"),
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Net::LDAP::Filter.eq("objectclass", "aaa*bbb*ccc*"),
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].each {|ber|
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f = Net::LDAP::Filter.parse_ber( ber.to_ber.read_ber( Net::LDAP::AsnSyntax) )
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assert( f == ber )
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assert_equal( f.to_ber, ber.to_ber )
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f = Net::LDAP::Filter.parse_ber(ber.to_ber.read_ber(Net::LDAP::AsnSyntax))
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assert(f == ber)
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assert_equal(f.to_ber, ber.to_ber)
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}
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end
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def test_ber_from_rfc2254_filter
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[
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Net::LDAP::Filter.construct( "objectclass=*" ),
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Net::LDAP::Filter.construct("objectclass=ou" ),
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Net::LDAP::Filter.construct("uid >= 500" ),
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Net::LDAP::Filter.construct("uid <= 500" ),
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Net::LDAP::Filter.construct("(!(uid=*))" ),
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Net::LDAP::Filter.construct("(&(uid=*)(objectclass=*))" ),
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Net::LDAP::Filter.construct("(&(uid=*)(objectclass=*)(sn=*))" ),
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Net::LDAP::Filter.construct("(|(uid=*)(objectclass=*))" ),
|
||||
Net::LDAP::Filter.construct("(|(uid=*)(objectclass=*)(sn=*))" ),
|
||||
Net::LDAP::Filter.construct("objectclass=*"),
|
||||
Net::LDAP::Filter.construct("objectclass=ou"),
|
||||
Net::LDAP::Filter.construct("uid >= 500"),
|
||||
Net::LDAP::Filter.construct("uid <= 500"),
|
||||
Net::LDAP::Filter.construct("(!(uid=*))"),
|
||||
Net::LDAP::Filter.construct("(&(uid=*)(objectclass=*))"),
|
||||
Net::LDAP::Filter.construct("(&(uid=*)(objectclass=*)(sn=*))"),
|
||||
Net::LDAP::Filter.construct("(|(uid=*)(objectclass=*))"),
|
||||
Net::LDAP::Filter.construct("(|(uid=*)(objectclass=*)(sn=*))"),
|
||||
|
||||
Net::LDAP::Filter.construct("objectclass=*aaa"),
|
||||
Net::LDAP::Filter.construct("objectclass=*aaa*bbb"),
|
||||
Net::LDAP::Filter.construct("objectclass=*aaa bbb"),
|
||||
Net::LDAP::Filter.construct("objectclass=*aaa bbb"),
|
||||
Net::LDAP::Filter.construct("objectclass=*aaa*bbb*ccc"),
|
||||
Net::LDAP::Filter.construct("objectclass=aaa*bbb"),
|
||||
Net::LDAP::Filter.construct("objectclass=aaa*bbb*ccc"),
|
||||
|
|
@ -74,10 +103,9 @@ class TestFilter < Test::Unit::TestCase
|
|||
Net::LDAP::Filter.construct("objectclass=aaa*bbb*"),
|
||||
Net::LDAP::Filter.construct("objectclass=aaa*bbb*ccc*"),
|
||||
].each {|ber|
|
||||
f = Net::LDAP::Filter.parse_ber( ber.to_ber.read_ber( Net::LDAP::AsnSyntax) )
|
||||
assert( f == ber )
|
||||
assert_equal( f.to_ber, ber.to_ber )
|
||||
f = Net::LDAP::Filter.parse_ber(ber.to_ber.read_ber(Net::LDAP::AsnSyntax))
|
||||
assert(f == ber)
|
||||
assert_equal(f.to_ber, ber.to_ber)
|
||||
}
|
||||
end
|
||||
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in New Issue