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GUACAMOLE-579: Parse tokens from attributes provided by the CAS server.

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This commit is contained in:
Nick Couchman
2018-12-08 11:49:42 -05:00
committed by Virtually Nick
parent 82ea1d6ff5
commit 55c4144fbf
12 changed files with 288 additions and 57 deletions
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2
extensions/guacamole-auth-ldap/src/main/java/org/apache/guacamole/auth/ldap/AuthenticationProviderService.java
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@@ -309,7 +309,7 @@ public class AuthenticationProviderService {
// Convert each retrieved attribute into a corresponding token
for (Object attrObj : attrSet) {
LDAPAttribute attr = (LDAPAttribute)attrObj;
tokens.put(TokenName.fromAttribute(attr.getName()), attr.getStringValue());
tokens.put(LDAPTokenName.fromAttribute(attr.getName()), attr.getStringValue());
}
}

33
extensions/guacamole-auth-ldap/src/main/java/org/apache/guacamole/auth/ldap/LDAPTokenName.java Normal file
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@@ -0,0 +1,33 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.guacamole.auth.ldap;
import org.apache.guacamole.token.TokenName;
/**
* Utility class for generating parameter token names.
*/
public class LDAPTokenName extends TokenName {
public static String fromAttribute(String name) {
return fromAttribute(name, "LDAP_");
}
}

106
extensions/guacamole-auth-ldap/src/main/java/org/apache/guacamole/auth/ldap/TokenName.java
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@@ -1,106 +0,0 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.guacamole.auth.ldap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Utility class for generating parameter token names.
*/
public class TokenName {
/**
* The prefix string to add to each parameter token generated from an LDAP
* attribute name.
*/
private static final String LDAP_ATTRIBUTE_TOKEN_PREFIX = "LDAP_";
/**
* Pattern which matches logical groupings of words within an LDAP
* attribute name. This pattern is intended to match logical groupings
* regardless of the naming convention used: "CamelCase",
* "headlessCamelCase", "lowercase_with_underscores",
* "lowercase-with-dashes" or even "aVery-INCONSISTENTMix_ofAllStyles".
*/
private static final Pattern LDAP_ATTRIBUTE_NAME_GROUPING = Pattern.compile(
// "Camel" word groups
"\\p{javaUpperCase}\\p{javaLowerCase}+"
// Groups of digits
+ "|[0-9]+"
// Groups of uppercase letters, excluding the uppercase letter
// which begins a following "Camel" group
+ "|\\p{javaUpperCase}+(?!\\p{javaLowerCase})"
// Groups of lowercase letters which match no other pattern
+ "|\\p{javaLowerCase}+"
// Groups of word characters letters which match no other pattern
+ "|\\b\\w+\\b"
);
/**
* This utility class should not be instantiated.
*/
private TokenName() {}
/**
* Generates the name of the parameter token that should be populated with
* the value of the given LDAP attribute. The name of the LDAP attribute
* will automatically be transformed from "CamelCase", "headlessCamelCase",
* "lowercase_with_underscores", and "mixes_ofBoth_Styles" to consistent
* "UPPERCASE_WITH_UNDERSCORES". Each returned attribute will be prefixed
* with "LDAP_".
*
* @param name
* The name of the LDAP attribute to use to generate the token name.
*
* @return
* The name of the parameter token that should be populated with the
* value of the LDAP attribute having the given name.
*/
public static String fromAttribute(String name) {
// If even one logical word grouping cannot be found, default to
// simply converting the attribute to uppercase and adding the
// prefix
Matcher groupMatcher = LDAP_ATTRIBUTE_NAME_GROUPING.matcher(name);
if (!groupMatcher.find())
return LDAP_ATTRIBUTE_TOKEN_PREFIX + name.toUpperCase();
// Split the given name into logical word groups, separated by
// underscores and converted to uppercase
StringBuilder builder = new StringBuilder(LDAP_ATTRIBUTE_TOKEN_PREFIX);
builder.append(groupMatcher.group(0).toUpperCase());
while (groupMatcher.find()) {
builder.append("_");
builder.append(groupMatcher.group(0).toUpperCase());
}
return builder.toString();
}
}