diff options
| author |   DUVAL Thomas <thomas.duval@orange.com> | 2016-06-16 14:50:31 +0200 |
|---|---|---|
| committer | DUVAL Thomas <thomas.duval@orange.com> | 2016-06-16 14:50:31 +0200 |
| commit | adf7e6616c2a8d6f60207059288423f693509928 (patch) | |
| tree | b79848d3b61f28e975f4730de541532c5089c6ed /odl-aaa-moon/aaa/aaa-authn-api/src | |
| parent | 506a1fc1252268fa31ba89882ea55b7665579965 (diff) | |
Add new version of aaa
Change-Id: I94d72011e6019e66c98f46d11436a5cb33ff295d
Diffstat (limited to 'odl-aaa-moon/aaa/aaa-authn-api/src')
50 files changed, 5906 insertions, 0 deletions
diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/Makefile b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/Makefile new file mode 100644 index 00000000..446795b4 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/Makefile @@ -0,0 +1,29 @@ +all: sssd_configuration.html sssd_configuration.pdf mapping.html + + +images = sssd_01.png sssd_02.png sssd_03.png sssd_04.png sssd_05.png + +sssd_configuration.html: $(images) + +sssd_configuration.pdf: $(images) + +%.html: %.rst + rst2html $< $@ + +%.pdf: %.rst + rst2pdf --footer='-###Page###-' $< -o $@ + +%.png: %.svg + inkscape -z -e $@ -w 800 $< + +sssd_01.svg: sssd_01.diag + blockdiag -Tsvg $< + +sssd_02.svg: sssd_02.diag + blockdiag -Tsvg $< + +sssd_03.svg: sssd_03.diag + seqdiag -Tsvg $< + +sssd_04.svg: sssd_04.diag + blockdiag -Tsvg $< diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/class_diagram.png b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/class_diagram.png Binary files differnew file mode 100644 index 00000000..999a41f9 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/class_diagram.png diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/class_diagram.ucls b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/class_diagram.ucls new file mode 100644 index 00000000..68345256 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/class_diagram.ucls @@ -0,0 +1,127 @@ +<?xml version="1.0" encoding="UTF-8"?> +<class-diagram version="1.1.6" icons="true" automaticImage="PNG" always-add-relationships="false" generalizations="true" + realizations="true" associations="true" dependencies="true" nesting-relationships="true"> + <interface id="1" language="java" name="org.opendaylight.aaa.api.TokenStore" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenStore.java" binary="false" corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="637" y="568"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="2" language="java" name="org.opendaylight.aaa.api.AuthenticationService" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationService.java" binary="false" + corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="385" y="727"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="3" language="java" name="org.opendaylight.aaa.api.CredentialAuth" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/CredentialAuth.java" binary="false" + corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="148" y="94"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="4" language="java" name="org.opendaylight.aaa.api.TokenAuth" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenAuth.java" binary="false" corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="139" y="568"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="5" language="java" name="org.opendaylight.aaa.api.PasswordCredentials" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/PasswordCredentials.java" binary="false" + corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="383" y="218"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="6" language="java" name="org.opendaylight.aaa.api.Credentials" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Credentials.java" binary="false" corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="385" y="93"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="7" language="java" name="org.opendaylight.aaa.api.Authentication" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Authentication.java" binary="false" + corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="386" y="567"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="8" language="java" name="org.opendaylight.aaa.api.ClaimAuth" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClaimAuth.java" binary="false" corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="138" y="386"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <interface id="9" language="java" name="org.opendaylight.aaa.api.Claim" project="aaa-authn-api" + file="/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Claim.java" binary="false" corner="BOTTOM_RIGHT"> + <position height="-1" width="-1" x="386" y="386"/> + <display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" accessors="true" + visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </display> + </interface> + <dependency id="10"> + <end type="SOURCE" refId="3"/> + <end type="TARGET" refId="6"/> + </dependency> + <dependency id="11"> + <end type="SOURCE" refId="2"/> + <end type="TARGET" refId="7"/> + </dependency> + <generalization id="12"> + <end type="SOURCE" refId="5"/> + <end type="TARGET" refId="6"/> + </generalization> + <dependency id="13"> + <end type="SOURCE" refId="3"/> + <end type="TARGET" refId="9"/> + </dependency> + <generalization id="14"> + <end type="SOURCE" refId="7"/> + <end type="TARGET" refId="9"/> + </generalization> + <dependency id="15"> + <end type="SOURCE" refId="1"/> + <end type="TARGET" refId="7"/> + </dependency> + <dependency id="16"> + <end type="SOURCE" refId="8"/> + <end type="TARGET" refId="9"/> + </dependency> + <dependency id="17"> + <end type="SOURCE" refId="4"/> + <end type="TARGET" refId="7"/> + </dependency> + <classifier-display autosize="true" stereotype="true" package="true" initial-value="false" signature="true" + accessors="true" visibility="true"> + <attributes public="true" package="true" protected="true" private="false" static="true"/> + <operations public="true" package="true" protected="true" private="false" static="true"/> + </classifier-display> + <association-display labels="true" multiplicity="true"/> +</class-diagram>
\ No newline at end of file diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/credential_auth_sequence.png b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/credential_auth_sequence.png Binary files differnew file mode 100644 index 00000000..52d63650 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/credential_auth_sequence.png diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/credential_auth_sequence.wsd b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/credential_auth_sequence.wsd new file mode 100644 index 00000000..383d4031 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/credential_auth_sequence.wsd @@ -0,0 +1,18 @@ +title Credential Authentication Sequence + +# This walks through the credential authentication use case where a credential +# (typically username/password) is used to authenticate directly with the ODL +# controller. + +Client -> ServletContainer: request access token +note right of Client +(credentials, scope=domain) +end note +ServletContainer -> TokenEndpoint: credentials, domain +TokenEndpoint -> CredentialAuth: authenticate(Credentials, domain) +CredentialAuth -> TokenEndpoint: Claim +note left of CredentialAuth +(user/domain/roles) +end note +TokenEndpoint -> TokenEndpoint: createToken +TokenEndpoint -> Client: access token
\ No newline at end of file diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/federated_auth_sequence.png b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/federated_auth_sequence.png Binary files differnew file mode 100644 index 00000000..799cc909 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/federated_auth_sequence.png diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/federated_auth_sequence.wsd b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/federated_auth_sequence.wsd new file mode 100644 index 00000000..22d1d916 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/federated_auth_sequence.wsd @@ -0,0 +1,24 @@ +title Federated Authentication Sequence (w/ Claim Transformation) + +# This walks through the federated authentication sequence where a claim from a +# third-party IdP system is posted to the ODL token endpoint in exchange for an +# access token. The claim information is assumed to be in format specific to the +# third-party IdP system and assumed to be captured via either Apache environment +# variables (Servlet attributes) or HTTP headers. + +Client -> ServletContainer: request access token +note right of Client +(claim as Apache env/HTTP headers) +end note +ServletContainer -> ClaimAuthFilter: Servlet attributes/headers +loop foreach ClaimAuth + ClaimAuthFilter -> ClaimAuth: transform(Map<String, Object> claim) + ClaimAuth -> ClaimAuth: transformClaim +end +ClaimAuth -> ClaimAuthFilter: Claim +note left of ClaimAuth +(user/domain/roles) +end note +ClaimAuthFilter --> TokenEndpoint: Claim +TokenEndpoint -> TokenEndpoint: createToken +TokenEndpoint -> Client: access token
\ No newline at end of file diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/mapping.rst b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/mapping.rst new file mode 100644 index 00000000..33635502 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/mapping.rst @@ -0,0 +1,1609 @@ +Operation Model +=============== + +The assertions from an IdP are stored in an associative array. A +sequence of rules are applied, the first rule which returns success is +considered a match. During the execution of each rule values from the +assertion can be tested and transformed with the results selectively +stored in variables local to the rule. If the rule succeeds an +associative array of mapped values is returned. The mapped values are +taken from the local variables set during the rule execution. The +definition of the rules and mapped results are expressed in JSON +notation. + +A rule is somewhat akin to a function in a programming language. It +starts execution with a set of predefined local variables. It executes +statements which are grouped together in blocks. Execution continues +until an `exit`_ statement returning a success/fail result is +executed or until the last statement is reached which implies +success. The remaining statements in a block may be skipped via a +`continue`_ statement which tests a condition, this is equivalent to +an "if" control flow of logic in a programming language. + +Rule execution continues until a rule returns success. Each rule has a +`mapping`_ associative array bound to it which is a template for the +transformed result. Upon success the `mapping`_ template for the +rule is loaded and the local variables from the successful rule are +used to populate the values in the `mapping`_ template yielding the +final mapped result. + +If no rules returns success authentication fails. + + +Pseudo Code Illustrating Operational Model +------------------------------------------ + +:: + + mapped = null + foreach rule in rules { + result = null + initialize rule.variables with pre-defined values + + foreach block in rule.statement_blocks { + for statement in block.statements { + if statement.verb is exit { + result = exit.status + break + } + elif statement.verb is continue { + break + } + } + if result { + break + } + if result == null { + result = success + } + if result == success { + mapped = rule.mapping(rule.variables) + } + return mapped + + + +Structure Of Rule Definitions +============================= + +Rules are loaded by the rule processor via a JSON document called a +rule definition. A definition has an *optional* set of mapping +templates and a list of rules. Each rule has specifies a mapping +template and has a list of statement blocks. Each statement block has +a list of statements. + +In pseudo-JSON (JSON does not have comments, the ... ellipsis is a +place holder): + +:: + + { + "mappings": { + "template1": "{...}", + "template2": "{...}" + }, + "rules": [ + { # Rule 0. A rule has a mapping or a mapping name + # and a list of statement blocks + + "mapping": {...}, + # -OR- + "mapping_name": "template1", + + "statement_blocks": [ + [ # Block 0 + [statement 0] + [statement 1] + ], + [ # Block 1 + [statement 0] + [statement 1] + ], + + ] + }, + { # Rule 1 ... + } + ] + + } + +Mapping +------- + +A mapping template is used to produce the final associative array of +name/value pairs. The template is a JSON Object. The value in a +name/value pair can be a constant or a variable. If the template value +is a variable the value of the variable is retrieved from the set of +local variables bound to the rule thereby replacing it in the final +result. + +For example given this mapping template and rule variables in JSON: + +template: + +:: + + { + "organization": "BigCorp.com", + "user: "$subject", + "roles": "$roles" + } + +local variables: + +:: + + { + "subject": "Sally", + "roles": ["user", "admin"] + } + +The final mapped results would be: + +:: + + { + "organization": "BigCorp.com", + "user: "Sally", + "roles": ["user", "admin"] + } + + +Each rule must bind a mapping template to the rule. The mapping +template may either be defined directly in the rule via the +``mapping`` key or referenced by name via the ``mapping_name`` key. + +If the ``mapping_name`` is specified the mapping is looked up in a +table of mapping templates bound to the Rule Processor. Using the name +of a mapping template is useful when many rules generate the exact +same template values. + +If both ``mapping`` and ``mapping_name`` are defined the locally bound +``mapping`` takes precedence. + +Syntax +------ + +The logic for a rule consists of a sequence of statements grouped in +blocks. A statement is similar to a function call in a programming +language. + +A statement is a list of values the first of which is a verb which +defines the operation the statement will perform. Think of the +`verbs`_ as function names or operators. Following the verb are +parameters which may be constants or variables. If the statement +assigns a value to a variable left hand side of the assignment (lhs) +is always the first parameter following the verb in the list of +statement values. + +For example this statement in JSON: + +:: + + ["split", "$groups", "$assertion[Groups]", ":"] + +will assign an array to the variable ``$groups``. It looks up the +string named ``Groups`` in the assertion which is a colon (:) +separated list of group names splitting that string on the colon +character. + +Statements **must** be grouped together in blocks. Therefore a rule is +a sequence of blocks and block is a sequence of statements. The +purpose of blocks is allow for crude flow of control logic. For +example this JSON rule has 4 blocks. + +:: + + [ + [ + ["set", $user, ""], + ["set", $roles, []] + ], + [ + ["in", "UserName", "$assertion"], + ["continue", "if_not_success"], + ["set", "$user", "$assertion[UserName"], + ], + [ + ["in", "subject", "$assertion"], + ["continue", "if_not_success"], + ["set", "$user", "$assertion[subject]"], + ], + [ + ["length", "$temp", "$user"], + ["compare", "$temp", ">", 0], + ["exit", "rule_fails", "if_not_success"] + ["append" "$roles", "unprivileged"] + ] + ] + +The rule will succeed if either ``UserName`` or ``subject`` is defined +in the assertion and if so the local variable ``$user`` will be set to +the value found in the assertion and the "unprivileged" role will be +appended to the roles array. + +The first block performs initialization. The second block tests to see +if the assertion has the key ``UserName`` if not execution continues +at the next block otherwise the value of UserName in the assertion is +copied into the variable ``$user``. The third block performs a similar +operation looking for a ``subject`` in the assertion. The fourth block +checks to see if the ``$user`` variable is empty, if it is empty the +rule fails because it didn't find either a ``UserName`` nor a +``subject`` in the assertion. If ``$user`` is not empty the +"unprivileged" role is appended and the rule succeeds. + +Data Types +---------- + +There are 7 supported types which equate to the types available in +JSON. At the time of this writing there are 2 implementations of this +Mapping specification, one in Python and one in Java. This table +illustrates how each data type is represented. The first two columns +are definitions from an abstract specification. The JSON column +enumerates the data type JSON supports. The Mapping column lists the +7 enumeration names used by the Mapping implemenation in each +language. The following columns list the concrete data type used in +that language. + ++-----------+------------+--------------------+---------------------+ +| JSON | Mapping | Python | Java | ++===========+============+====================+=====================+ +| object | MAP | dict | Map<String, Object> | ++-----------+------------+--------------------+---------------------+ +| array | ARRAY | list | List<Object> | ++-----------+------------+--------------------+---------------------+ +| string | STRING | unicode (Python 2) | String | +| | +--------------------+ | +| | | str (Python 3) | | ++-----------+------------+--------------------+---------------------+ +| | INTEGER | int | Long | +| number +------------+--------------------+---------------------+ +| | REAL | float | Double | ++-----------+------------+--------------------+---------------------+ +| true | | | | ++-----------+ BOOLEAN | bool | Boolean | +| false | | | | ++-----------+------------+--------------------+---------------------+ +| null | NULL | None | null | ++-----------+------------+--------------------+---------------------+ + + +Rule Debugging and Documentation +-------------------------------- + +If the rule processor reports an error or if you're debugging your +rules by enabling DEBUG log tracing then you must be able to correlate +the reported statement to where it appears in your rule JSON source. A +message will always identify a statement by the rule number, block +number within that rule and the statement number within that +block. However once your rules become moderately complex it will +become increasingly difficult to identify a statement by counting +rules, blocks and statements. + +A better approach is to tag rules and blocks with a name or other +identifying string. You can set the `Reserved Variables`_ +``rule_name`` and ``block_name`` to a string of your choice. These +strings will be reported in all messages along with the rule, block +and statement numbers. + +JSON does not permit comments, as such you cannot include explanatory +comments next to your rules, blocks and statements in the JSON +source. The ``rule_name`` and ``block_name`` can serve a similar +purpose. By putting assignments to these variables as the first +statement in a block you'll both document your rules and be able to +identify specific statements in log messages. + +During rule execution the ``rule_name`` and ``block_name`` are +initialized to the empty string at the beginning of each rule and +block respectively. + +The above example is augmented to include this information. The rule +name is set in the first statement in the first block. + +:: + + [ + [ + ["set", "$rule_name", "Must have UserName or subject"], + ["set", "block_name", "Initialization"], + ["set", $user, ""], + ["set", $roles, []] + ], + [ + ["set", "block_name", "Test for UserName, set $user"], + ["in", "UserName", "$assertion"], + ["continue", "if_not_success"], + ["set", "$user", "$assertion[UserName"], + ], + [ + ["set", "block_name", "Test for subject, set $user"], + ["in", "subject", "$assertion"], + ["continue", "if_not_success"], + ["set", "$user", "$assertion[subject]"], + ], + [ + ["set", "block_name", "If not $user fail, else append unprivileged to roles"], + ["length", "$temp", "$user"], + ["compare", "$temp", ">", 0], + ["exit", "rule_fails", "if_not_success"] + ["append" "$roles", "unprivileged"] + ] + ] + + + + +Variables +--------- + + +Variables always begin with a dollar sign ($) and are followed by an +identifier which is any alpha character followed by zero or more +alphanumeric or underscore characters. The variable may optionally be +delimited with braces ({}) to separate the variable from surrounding +text. Three types of variables are supported: + +* scalar +* array (indexed by zero based integer) +* associative array (indexed by string) + +Both arrays and associative arrays use square brackets ([]) to specify +a member of the array. Examples of variable usage: + +:: + + $name + ${name} + $groups[0] + ${groups[0]} + $properties[key] + ${properties[key]} + +An array or an associative array may be referenced by it's base name +(omitting the indexing brackets). For example the associative array +array named "properties" is referenced using it's base name +``$properties`` but if you want to access a member of the "properties" +associative array named "duration" you would do this ``$properties[duration]`` + +This is not a general purpose language with full expression +syntax. Only one level of variable lookup is supported. Therefore +compound references like this + +:: + + $properties[$groups[2]] + +will not work. + + +Escaping +^^^^^^^^ + +If you need to include a dollar sign in a string (where it is +immediately followed by either an identifier or a brace and identifier) +and do not want to have it be interpreted as representing a variable +you must escape the dollar sign with a backslash, for example +"$amount" is interpreted as the variable ``amount`` but "\\$amount" +is interpreted as the string "$amount" . + + +Reserved Variables +------------------ + +A rule has the following reserved variables: + +assertion + The current assertion values from the federated IdP. It is a + dictionary of key/value pairs. + +regexp_array + The regular expression groups from the last successful regexp match + indexed by number. Group 0 is the entire match. Groups 1..n are + the corresponding parenthesized group counting from the left. For + example regexp_array[1] is the first group. + +regexp_map + The regular expression groups from the last successful regexp match + indexed by group name. + +rule_number + The zero based index of the currently executing rule. + +rule_name + The name of the currently executing rule. If the rule name has not + been set it will be the empty string. + +block_number + The zero based index of the currently executing block within the + currently executing rule. + +block_name + The name of the currently executing block. If the block name has not + been set it will be the empty string. + + +statement_number + The zero based index of the currently executing statement within the + currently executing block. + + +Examples +======== + +Split a fully qualified username into user and realm components +--------------------------------------------------------------- + +It's common for some IdP's to return a fully qualified username +(e.g. principal or subject). The fully qualified username is the +concatenation of the user name, separator and realm name. A common +separator is the @ character. In this example lets say the fully +qualified username is ``bob@example.com`` and you want to return the +user and realm as independent values in your mapped result. The +username appears in the assertion as the value ``Principal``. + +Our strategy will be to use a regular expression identify the user and +realm components and then assign them to local variables which will +then populate the mapped result. + +The mapping in JSON is: + +:: + + { + "user": "$username", + "realm": "$domain" + } + +The assertion in JSON is: + +:: + + { + "Principal": "bob@example.com" + } + +Our rule is: + +:: + + [ + [ + ["in", "Principal", "assertion"], + ["exit", "rule_fails", "if_not_success"], + ["regexp", "$assertion[Principal]", (?P<username>\\w+)@(?P<domain>.+)"], + ["set", "$username", "$regexp_map[username]"], + ["set", "$domain", "$regexp_map[domain]"], + ["exit, "rule_succeeds", "always"] + ] + ] + +Rule explanation: + +Block 0: + +0. Test if the assertion contains a Principal value. +1. Abort the rule if the assertion does not contain a Principal + value. +2. Apply a regular expression the the Principal value. Use named + groupings for the username and domain components for clarity. +3. Assign the regexp group username to the $username local variable. +4. Assign the regexp group domain to the $domain local variable. +5. Exit the rule, apply the mapping, return the mapped values. Note, an + explicit `exit`_ is not required if there are no further statements + in the rule, as is the case here. + +The mapped result in JSON is: + +:: + + { + "user": "bob", + "realm": "example.com" + } + +Build a set of roles based on group membership +---------------------------------------------- + +Often one wants to grant roles to a user based on their membership in +certain groups. In this example let's say the assertion contains a +``Groups`` value which is a colon separated list of group names. Our +strategy is to split the ``Groups`` assertion value into an array of +group names. Then we'll test if a specific group is in the groups +array, if it is we'll add a role. Finally if no roles have been mapped +we fail. Users in the group "student" will get the role "unprivileged" +and users in the group "helpdesk" will get the role "admin". + +The mapping in JSON is: + +:: + + { + "roles": "$roles", + } + +The assertion in JSON is: + +:: + + { + "Groups": "student:helpdesk" + } + +Our rule is: + +:: + + [ + [ + ["in", "Groups", "assertion"], + ["exit", "rule_fails", "if_not_success"], + ["set", "$roles", []], + ["split", "$groups", "$assertion[Groups]", ":"], + ], + [ + ["in", "student", "$groups"], + ["continue", "if_not_success"], + ["append", "$roles", "unprivileged"] + ], + [ + ["in", "helpdesk", "$groups"], + ["continue", "if_not_success"], + ["append", "$roles", "admin"] + ], + [ + ["unique", "$roles", "$roles"], + ["length", "$temp", "roles"], + ["compare", $temp", ">", 0], + ["exit", "rule_fails", "if_not_success"] + ] + + ] + +Rule explanation: + +Block 0 + +0. Test if the assertion contains a Groups value. +1. Abort the rule if the assertion does not contain a Groups + value. +2. Initialize the $roles variable to an empty array. +3. Split the colon separated list of group names into an array of + individual group names + +Block 1 + +0. Test if "student" is in the $groups array +1. Exit the block if it's not. +2. Append "unprivileged" to the $roles array + +Block 2 + +0. Test if "helpdesk" is in the $groups array +1. Exit the block if it's not. +2. Append "admin" to the $roles array + +Block 3 + +0. Strip any duplicate roles that might have been appended to the + $roles array to assure each role is unique. +1. Count how many members are in the $roles array, assign the + length to the $temp variable. +2. Test to see if the $roles array had any members. +3. Fail if no roles had been assigned. + +The mapped result in JSON is: + +:: + + { + "roles": ["unprivileged", "admin"] + } + +However, suppose whatever is receiving your mapped results is not +expecting an array of roles. Instead it expects a comma separated list +in a string. To accomplish this add the following statement as the +last one in the final block: + +:: + + ["join", "$roles", "$roles", ","] + +Then the mapped result will be: + +:: + + { + "roles": "unprivileged,admin"] + } + + + + +White list certain users and grant them specific roles +------------------------------------------------------ + +Suppose you have certain users you always want to unconditionally +accept and authorize with specific roles. For example if the user is +"head_of_IT" then assign her the "user" and "admin" roles. Otherwise +keep processing. The list of white listed users is hard-coded into the +rule. + +The mapping in JSON is: + +:: + + { + "user": $user, + "roles": "$roles", + } + +The assertion in JSON is: + +:: + + { + "UserName": "head_of_IT" + } + +Our rule in JSON is: + +:: + + [ + [ + ["in", "UserName", "assertion"], + ["exit", "rule_fails", "if_not_success"], + ["in", "$assertion[UserName]", ["head_of_IT", "head_of_Engineering"]], + ["continue", "if_not_success"], + ["set", "$user", "$assertion[UserName"] + ["set", "$roles", ["user", "admin"]], + ["exit", "rule_succeeds", "always"] + ], + [ + ... + ] + ] + +Rule explanation: + +Block 0 + +0. Test if the assertion contains a UserName value. +1. Abort the rule if the assertion does not contain a UserName + value. +2. Test if the user is in the hardcoded list of white listed users. +3. If the user isn't in the white listed array then exit the block and + continue execution at the next block. +4. Set the $user local variable to $assertion[UserName] +5. Set the $roles local variable to the hardcoded array containing + "user" and "admin" +6. We're done, unconditionally exit and return the mapped result. + +Block 1 + +0. Further processing + +The mapped result in JSON is: + +:: + + { + "user": "head_of_IT", + "roles": ["users", "admin"] + } + + +Black list certain users +------------------------ + +Suppose you have certain users you always want to unconditionally +deny access to by placing them in a black list. In this example the +user "BlackHat" will try to gain access. The black list includes the +users "BlackHat" and "Spook". + +The mapping in JSON is: + +:: + + { + "user": $user, + "roles": "$roles", + } + +The assertion in JSON is: + +:: + + { + "UserName": "BlackHat" + } + +Our rule in JSON is: + +:: + + [ + [ + ["in", "UserName", "assertion"], + ["exit", "rule_fails", "if_not_success"], + ["in", "$assertion[UserName]", ["BlackHat", "Spook"]], + ["exit", "rule_fails", "if_success"] + ], + [ + ... + ] + ] + +Rule explanation: + +Block 0 + +0. Test if the assertion contains a UserName value. +1. Abort the rule if the assertion does not contain a UserName + value. +2. Test if the user is in the hard-coded list of black listed users. +3. If the test succeeds then immediately abort and return failure. + +Block 1 + +0. Further processing + +The mapped result in JSON is: + +:: + + Null + +Format Strings and/or Concatenate Strings +----------------------------------------- + +You can replace variables in a format string using the `interpolate`_ +verb. String concatenation is trivially placing two variables adjacent +to one another in a format string. Suppose you want to form an email +address from the username and domain in an assertion. + +The mapping in JSON is: + +:: + + { + "email": $email, + } + +The assertion in JSON is: + +:: + + { + "UserName": "Bob", + "Domain": "example.com" + } + +Our rule in JSON is: + +:: + + [ + [ + ["interpolate", "$email", "$assertion[UserName]@$assertion[Domain]"], + ] + ] + +Rule explanation: + +Block 0 + +0. Replace the variable $assertion[UserName] with it's value and + replace the variable $assertion[Domain] with it's value. + +The mapped result in JSON is: + +:: + + { + "email": "Bob@example.com", + } + + +Note, sometimes it's necessary to utilize braces to separate variables +from surrounding text by using the brace notation. This can also make +the format string more readable. Using braces to delimit variables the +above would be: + +:: + + [ + [ + ["interpolate", "$email", "${assertion[UserName]}@${assertion[Domain]}"], + ] + ] + + + +Make associative array lookups case insensitive +----------------------------------------------- + +Many systems treat field names as case insensitive. By default +associative array indexing is case sensitive. The solution is to lower +case all the keys in an associative array and then only use lower case +indices. Suppose you want the assertion associative array to be case +insensitive. + +The mapping in JSON is: + +:: + + { + "user": $user, + } + +The assertion in JSON is: + +:: + + { + "UserName": "Bob" + } + +Our rule in JSON is: + +:: + + [ + [ + ["lower", "$assertion", "$assertion"], + ["in", "username", "assertion"], + ["exit", "rule_fails", "if_not_success"], + ["set", "$user", "$assertion[username"] + ] + ] + +Rule explanation: + +Block 0 + +0. Lower case all the keys in the assertion associative array. +1. Test if the assertion contains a username value. +2. Abort the rule if the assertion does not contain a username + value. +3. Assign the username value in the assertion to $user + +The mapped result in JSON is: + +:: + + { + "user": "Bob", + } + + +Verbs +===== + +The following verbs are supported: + +* `set`_ +* `length`_ +* `interpolate`_ +* `append`_ +* `unique`_ +* `regexp`_ +* `regexp_replace`_ +* `split`_ +* `join`_ +* `lower`_ +* `upper`_ +* `compare`_ +* `in`_ +* `not_in`_ +* `exit`_ +* `continue`_ + +Some verbs have a side effects. A verb may set a boolean success/fail +result which may then be tested with a subsequent verb. For example +the ``fail`` verb can be used to indicate the rule fails if a prior +result is either ``success`` or ``not_success``. The ``regexp`` verb +which performs a regular expression search on a string stores the +regular expression sub-matches as a side effect in the variables +``$regexp_array`` and ``$regexp_map``. + + +Verb Definitions +================ + +set +--- + +``set $variable value`` + +$variable + The variable being assigned (i.e. lhs) + +value + The value to assign to the variable (i.e. rhs). The value may be + another variable or a constant. + +**set** assigns a value to a variable, in other words it's an +assignment statement. + +Examples: +^^^^^^^^^ + +Initialize a variable to an empty array. + +:: + + ["set", "$groups", []] + +Initialize a variable to an empty associative array. + +:: + + ["set", "$groups", {}] + +Assign a string. + +:: + + ["set", "$version", "1.2.3"] + +Copy the ``UserName`` value from the assertion to a temporary variable. + +:: + + ["set", "$temp", "$assertion[UserName]"], + + +Get the 2nd item in an array (array indexing is zero based) + +:: + + ["set", "$group", "$groups[1]"] + + +Set the associative array entry "IdP" to "kdc.example.com". + +:: + + ["set", "$metadata[IdP]", "kdc.example.com""] + +-------------------------------------------------------------------------------- + +length +------ + +``length $variable value`` + +$variable + The variable which receives the length value + +value + The value whose length is to be determined. May be one of array, + associative array, or string. + +**length** computes the number of items in the value. How this is done +depends upon the type of value: + +array + The length is the number of items in the array. + +associative array + The length is the number of key/value pairs in the associative + array. + +string + The length is the number of *characters* (not octets) in the + string. + +Examples: +^^^^^^^^^ + +Count how many items are in the ``$groups`` array and assign that +value to the ``$groups_length`` variable. + +:: + + ["length", "$groups_length", "$groups"] + +Count how many key/value pairs are in the ``$assertion`` associative +array and assign that value to the ``$num_assertion_values`` variable. + +:: + + ["length", "$num_assertion_values", "$assertion"] + +Count how many characters are in the assertion's UserName and assign +the value to ``$username_length``. + +:: + + ["length", "$user_name_length", "$assertion[UserName]"] + + +-------------------------------------------------------------------------------- + +interpolate +----------- + +``interpolate $variable string`` + +$variable + This variable is assigned the result of the interpolation. + +string + A string containing references to variables which will be replaced + in the string. + +**interpolate** replaces each occurrence of a variable in a string with +it's value. The result is assigned to $variable. + +Examples: +^^^^^^^^^ + +Form an email address given the username and domain. If the username +is "jane" and the domain is "example.com" then $email will be +"jane@example.com" + +:: + + ["interpolate", "$email", "${username}@${domain}"] + + +-------------------------------------------------------------------------------- + + +append +------ + +``append $variable value`` + +$variable + This variable **must** be an array. It is modified in place by + appending ``value`` to the end of the array. + +value + The value to append to the end of the array. + +**append** adds a value to end of an array. + +Examples: +^^^^^^^^^ + +Append the role "qa_test" to the roles list. + +:: + + ["append", "$roles", "qa_test"] + + +-------------------------------------------------------------------------------- + + +unique +------ + +``unique $variable value`` + +$variable + This variable is assigned the unique values in the ``value`` + array. + +value + An array of values. **must** be an array. + +**unique** builds an array of unique values in ``value`` by stripping +out duplicates and assigns the array of unique values to +``$variable``. The order of items in the ``value`` array are +preserved. + +Examples: +^^^^^^^^^ + +$one_of_a_kind will be assigned ["a", "b"] + +:: + + ["unique", "$one_of_a_kind", ["a", "b", "a"]] + + +-------------------------------------------------------------------------------- + +regexp +------ + +``regexp string pattern`` + +string + The string the regular expression pattern is applied to. + +pattern + The regular expression pattern. + +**regexp** performs a regular expression match against ``string``. The +regular expression pattern syntax is defined by the regular expression +implementation of the language this API is written in. + +Pattern groups are a convenient way to select sub-matches. Pattern +groups may accessed by either group number or group name. After a +successful regular expression match the groups are stored in the +special variables ``$regexp_array`` and +``$regexp_map``. + +``$regexp_array`` is used to access the groups by +numerical index. Groups are numbered by counting the left parenthesis +group delimiter starting at 1. Group 0 is the entire +match. ``$regexp_array`` is valid irregardless of whether you used +named groups or not. + +``$regexp_map`` is used to access the groups by +name. ``$regexp_map`` is only valid if you used named groups in the +pattern. + +Examples: +^^^^^^^^^ + +Many user names are of the form "user@domain", to split the username +from the domain and to be able to work with those values independently +use a regular expression and then assign the results to a variable. In +this example there are two regular expression groups, the first group +is the username and the second group is the domain. In the first +example we use named groups and then access the match information in +the special variable ``$regexp_map`` via the name of the group. + +:: + + ["regexp", "$assertion[UserName]", "(?P<username>\\w+)@(?P<domain>.+)"], + ["continue", "if_not_success"], + ["set", "$username", "$regexp_map[username]"], + ["set", "$domain", "$regexp_map[domain]"], + + +This is exactly equivalent but uses numbered groups instead of named +groups. In this instance the group matches are stored in the special +variable ``$regexp_array`` and accessed by numerical index. + +:: + + ["regexp", "$assertion[UserName]", "(\\w+)@(.+)"], + ["continue", "if_not_success"], + ["set", "$username", "$regexp_array[1]"], + ["set", "$domain", "$regexp_array[2]"], + + + +-------------------------------------------------------------------------------- + +regexp_replace +-------------- + +``regexp_replace $variable string pattern replacement`` + +$variable + The variable which receives result of the replacement. + +string + The string to perform the replacement on. + +pattern + The regular expression pattern. + +replacement + The replacement specification. + +**regexp_replace** replaces each occurrence of ``pattern`` in +``$string`` with ``replacement``. See `regexp`_ for details of using +regular expressions. + +Examples: +^^^^^^^^^ + +Convert hyphens in a name to underscores. + +:: + + ["regexp_replace", "$name", "$name", "-", "_"] + + +-------------------------------------------------------------------------------- + +split +----- + +``split $variable string pattern`` + +$variable + This variable is assigned an array containing the split items. + +string + The string to split into separate items. + +pattern + The regular expression pattern used to split the string. + +**split** splits ``string`` into separate pieces and assigns the +result to ``$variable`` as an array of pieces. The split occurs +wherever the regular expression ``pattern`` occurs in ``string``. See +`regexp`_ for details of using regular expressions. + +Examples: +^^^^^^^^^ + +Split a list of groups separated by a colon (:) into an array of +individual group names. If $assertion[Groups] contained the string +"user:admin" then $group_list will set to ["user", "admin"]. + +:: + + ["split", "$group_list", "$assertion[Groups]", ":"] + + + +-------------------------------------------------------------------------------- + +join +---- + +``join $variable array join_string`` + +$variable + This variable is assigned the string result of the join operation. + +array + An array of string items to be joined together with + ``$join_string``. + +join_string + The string inserted between each element in ``array``. + +**join** accepts an array of strings and produces a single string +where each element in the array is separated by ``join_string``. + +Examples: +^^^^^^^^^ + +Convert a list of group names into a single string where each group +name is separated by a colon (:). If the array ``$group_list`` is +["user", "admin"] and the ``join_string`` is ":" then the +``$group_string`` variable will be set to "user:admin". + +:: + + ["join", "$group_string", "$groups", ":"] + + +-------------------------------------------------------------------------------- + +lower +----- + +``lower $variable value`` + +$variable + This variable is assigned the result of the lower operation. + +value + The value to lower case, may be either a string, array, or + associative array. + +**lower** lower cases the input value. The input value may be one of +the following types: + +string + The string is lower cased. + +array + Each member of the array must be a string, the result is an array + with the items replaced by their lower case value. + +associative array + Each key in the associative array is lower cased. The values + associated with the key are **not** modified. + +Examples: +^^^^^^^^^ + +Lookup ``UserName`` in the assertion and set the variable +``$username`` to it's lower case value. + +:: + + ["lower", "$username", "$assertion[UserName]"], + +Set each member of the ``$groups`` array to it's lower case value. If +``$groups`` was ["User", "Admin"] then ``$groups`` will become +["user", "admin"]. + +:: + + ["lower", "$groups", "$groups"], + +To enable case insensitive lookup's in an associative array lower case +each key in the associative array. If ``$assertion`` was {"UserName": +"JoeUser"} then ``$assertion`` will become {"username": "JoeUser"} + +:: + + ["lower", "$assertion", $assertion"] + +-------------------------------------------------------------------------------- + +upper +----- + +``upper $variable value`` + +$variable + This variable is assigned the result of the upper operation. + +value + The value to upper case, may be either a string, array, or + associative array. + +**upper** is exactly analogous to `lower`_ except the values are upper +cased, see `lower`_ for details. + + +-------------------------------------------------------------------------------- + +in +-- + +``in member collection`` + +member + The value whose membership is being tested. + +collection + A collection of members. May be string, array or associative array. + +**in** tests to see if ``member`` is a member of ``collection``. The +membership test depends on the type of collection, the following are +supported: + +array + If any item in the array is equal to ``member`` then the result is + success. + +associative array + If the associative array contains a key equal to ``member`` then + the result is success. + +string + If the string contains a sub-string equal to ``member`` then the + result is success. + +Examples: +^^^^^^^^^ + +Test to see if the assertion contains a UserName value. + +:: + + ["in", "UserName", "$assertion"] + ["continue", "if_not_success"] + +Test to see if a group is one of "user" or "admin". + +:: + + ["in", "$group", ["user", "admin"]] + ["continue", "if_not_success"] + +Test to see if the sub-string "BigCorp" is in +the assertion's ``Provider`` value. + +:: + + ["in", "BigCorp", "$assertion[Provider]"] + ["continue", "if_not_success"] + + +-------------------------------------------------------------------------------- + +not_in +------ + +``in member collection`` + +member + The value whose membership is being tested. + +collection + A collection of members. May be string, array or associative array. + +**not_in** is exactly analogous to `in`_ except the sense of the test +is reversed. See `in`_ for details. + +-------------------------------------------------------------------------------- + +compare +------- + +``compare left operator right`` + +left + The left hand value of the binary operator. + +operator + The binary operator used for comparing left to right. + +right + The right hand value of the binary operator. + + +**compare** compares the left value to the right value according the +operator and sets success if the comparison evaluates to True. The +following relational operators are supported. + ++----------+-----------------------+ +| Operator | Description | ++==========+=======================+ +| == | equal | ++----------+-----------------------+ +| != | not equal | ++----------+-----------------------+ +| < | less than | ++----------+-----------------------+ +| <= | less than or equal | ++----------+-----------------------+ +| > | greater than | ++----------+-----------------------+ +| >= | greater than or equal | ++----------+-----------------------+ + + +The left and right hand sides of the comparison operator *must* be +the same type, no type conversions are performed. Not all combinations +of operator and type are supported. The table below illustrates the +supported combinations. Essentially you can test for equality or +inequality on any type. But only strings and numbers support the +magnitude relational operators. + + ++----------+--------+---------+------+---------+-----+------+------+ +| Operator | STRING | INTEGER | REAL | BOOLEAN | MAP | LIST | NULL | ++==========+========+=========+======+=========+=====+======+======+ +| == | X | X | X | X | X | X | X | ++----------+--------+---------+------+---------+-----+------+------+ +| != | X | X | X | X | X | X | X | ++----------+--------+---------+------+---------+-----+------+------+ +| < | X | X | X | | | | | ++----------+--------+---------+------+---------+-----+------+------+ +| <= | X | X | X | | | | | ++----------+--------+---------+------+---------+-----+------+------+ +| > | X | X | X | | | | | ++----------+--------+---------+------+---------+-----+------+------+ +| >= | X | X | X | | | | | ++----------+--------+---------+------+---------+-----+------+------+ + + +Examples: +^^^^^^^^^ + +Test to see if the ``$groups`` array has at least 2 members + +:: + + ["length", "$group_length", "$groups"], + ["compare", "$group_length", ">=", 2] + + +-------------------------------------------------------------------------------- + +exit +---- + +``exit status criteria`` + +status + The result for the rule. + +criteria + The criteria upon which will cause the rule will be immediately + exited with a failed status. + +**exit** causes the rule being executed to immediately exit and a rule +result if the specified criteria is met. Statement verbs such as `in`_ +or `compare`_ set the result status which may be tested with the +``success`` and ``not_success`` criteria. + +The exit ``status`` may be one of: + +rule_fails + The rule has failed and no mapping will occur. + +rule_succeeds + The rule succeeded and the mapping will be applied. + +The ``criteria`` may be one of: + +if_success + If current result status is success then exit with ``status``. + +if_not_success + If current result status is not success then exit with ``status``. + +always + Unconditionally exit with ``status``. + +never + Effectively a no-op. Useful for debugging. + +Examples: +^^^^^^^^^ + +The rule requires ``UserName`` to be in the assertion. + +:: + + ["in", "UserName", "$assertion"] + ["exit", "rule_fails", "if_not_success"] + +-------------------------------------------------------------------------------- + + +continue +-------- + +``continue criteria`` + +criteria + The criteria which causes the remainder of the *block* to be + skipped. + +**continue** is used to control execution for statement blocks. It +mirrors in a crude way the `if` expression in a procedural +language. ``continue`` does *not* affect the success or failure of a +rule, rather it controls whether subsequent statements in a block are +executed or not. Control continues at the next statement block. + +Statement verbs such as `in`_ or `compare`_ set the result status +which may be tested with the ``success`` and ``not_success`` criteria. + +The criteria may be one of: + +if_success + If current result status is success then exit the statement + block and continue execution at the next statement block. + +if_not_success + If current result status is not success then exit the statement + block and continue execution at the next statement block. + +always + Immediately exit the statement block and continue execution at the + next statement block. + +never + Effectively a no-op. Useful for debugging. Execution continues at + the next statement. + +Examples: +^^^^^^^^^ + +The following pseudo code: + +:: + + roles = []; + if ("Groups" in assertion) { + groups = assertion["Groups"].split(":"); + if ("qa_test" in groups) { + roles.append("tester"); + } + } + +could be implemented this way: + +:: + + [ + ["set", "$roles", []], + ["in", "Groups", "$assertion"], + ["continue", "if_not_success"], + ["split" "$groups", $assertion[Groups]", ":"], + ["in", "qa_test", "$groups"], + ["continue", "if_not_success"], + ["append", "$roles", "tester"] + ] diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/resource_access_sequence.png b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/resource_access_sequence.png Binary files differnew file mode 100644 index 00000000..728b86ce --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/resource_access_sequence.png diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/resource_access_sequence.wsd b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/resource_access_sequence.wsd new file mode 100644 index 00000000..3a1c1474 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/resource_access_sequence.wsd @@ -0,0 +1,25 @@ +title Resource Access Sequence with Access Token + + This walks through a listing request of a secured resource (MD-SAL topology) + from a client to the ODL controller using an access token (either one generated + by the ODL token endpoint, or a token from a third-party IdP) and shows how the + authentication context get set upon successful token validation. If token + validation fails, the TokenAuthFilter will return a 401, and the REST layer + will be oblivious to the failed request. + +Client -> ServletContainer: list topologies +note right of Client +(Authorization = access token) +end note +ServletContainer -> TokenAuthFilter: access token +loop foreach TokenAuth + TokenAuthFilter -> TokenAuth: validate(token) + TokenAuth -> TokenAuth: validateToken +end +TokenAuth -> TokenAuthFilter: Authentication +note left of TokenAuth +(user/domain/roles/expiration) +end note +TokenAuthFilter -> AuthenticationService: set(Authentication) +TokenAuthFilter -> RestConf: list topologies +RestConf -> AuthenticationService: get: Authentication
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xmlns:xlink="http://www.w3.org/1999/xlink"> + <defs id="defs_block"> + <filter height="1.504" id="filter_blur" inkspace:collect="always" width="1.1575" x="-0.07875" y="-0.252"> + <feGaussianBlur id="feGaussianBlur3780" inkspace:collect="always" stdDeviation="4.2" /> + </filter> + </defs> + <title>blockdiag</title> + <desc>blockdiag { + User <-> AAA; + User [numbered = 1, shape = actor] + AAA [numbered = 2, label = "App Server\nAAA"] +} + +</desc> + <polygon fill="rgb(0,0,0)" points="134,56 134,61 151,61 151,66 134,66 134,71 148,86 141,86 131,76 121,86 114,86 128,71 128,66 111,66 111,61 128,61 128,56" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" /> + <ellipse cx="131" cy="51" fill="rgb(0,0,0)" rx="7" ry="7" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" /> + <rect fill="rgb(0,0,0)" height="40" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="128" x="259" y="46" /> + <polygon fill="rgb(255,255,255)" points="131,50 131,55 148,55 148,60 131,60 131,65 145,80 138,80 128,70 118,80 111,80 125,65 125,60 108,60 108,55 125,55 125,50" stroke="rgb(0,0,0)" /> + <ellipse cx="128" cy="45" fill="rgb(255,255,255)" rx="7" ry="7" stroke="rgb(0,0,0)" /> + <ellipse cx="64" cy="40" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="61" y="44">1</text> + <rect fill="rgb(255,255,255)" height="40" stroke="rgb(0,0,0)" width="128" x="256" y="40" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="293" y="60">App Server</text> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="310" y="70">AAA</text> + <ellipse cx="256" cy="40" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="253" y="44">2</text> + <path d="M 156 60 L 248 60" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="149,60 156,56 156,64 149,60" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="255,60 248,56 248,64 255,60" stroke="rgb(0,0,0)" /> +</svg> diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_02.diag b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_02.diag new file mode 100644 index 00000000..2076dd16 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_02.diag @@ -0,0 +1,18 @@ +blockdiag { + span_width = 30 + User <-> Apache; + Proxy <-> AAA; + group { + Apache <-> Proxy; + group { + orientation = portrait + Apache <-> SSSD; + } + } + User [numbered = 1, shape = actor, width = 60] + Apache [numbered = 2, label = "Apache\nAuthenticates user"] + SSSD [numbered = 3, label = "SSSD\nProvides user info"] + Proxy [numbered = 4, label = "Proxy Transport\nRequest + Metadata"] + AAA [numbered = 5, label = "App Server\nAAA"] +} + diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_02.svg b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_02.svg new file mode 100644 index 00000000..42196b60 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_02.svg @@ -0,0 +1,79 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"> +<svg viewBox="0 0 594 200" xmlns="http://www.w3.org/2000/svg" xmlns:inkspace="http://www.inkscape.org/namespaces/inkscape" xmlns:xlink="http://www.w3.org/1999/xlink"> + <defs id="defs_block"> + <filter height="1.504" id="filter_blur" inkspace:collect="always" width="1.1575" x="-0.07875" y="-0.252"> + <feGaussianBlur id="feGaussianBlur3780" inkspace:collect="always" stdDeviation="4.2" /> + </filter> + </defs> + <title>blockdiag</title> + <desc>blockdiag { + span_width = 30 + User <-> Apache; + Proxy <-> AAA; + group { + Apache <-> Proxy; + group { + orientation = portrait + Apache <-> SSSD; + } + } + User [numbered = 1, shape = actor, width = 60] + Apache [numbered = 2, label = "Apache\nAuthenticates user"] + SSSD [numbered = 3, label = "SSSD\nProvides user info"] + Proxy [numbered = 4, label = "Proxy Transport\nRequest + Metadata"] + AAA [numbered = 5, label = "App Server\nAAA"] +} + +</desc> + <rect fill="rgb(243,152,0)" height="140" style="filter:url(#filter_blur)" width="292" x="117" y="30" /> + <rect fill="rgb(243,152,0)" height="140" style="filter:url(#filter_blur)" width="134" x="117" y="30" /> + <polygon fill="rgb(0,0,0)" points="66,56 66,61 83,61 83,66 66,66 66,71 80,86 73,86 63,76 53,86 46,86 60,71 60,66 43,66 43,61 60,61 60,56" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" /> + <ellipse cx="63" cy="51" fill="rgb(0,0,0)" rx="7" ry="7" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" /> + <rect fill="rgb(0,0,0)" height="40" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="128" x="123" y="46" /> + <rect fill="rgb(0,0,0)" height="40" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="128" x="123" y="126" /> + <rect fill="rgb(0,0,0)" height="40" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="128" x="281" y="46" /> + <rect fill="rgb(0,0,0)" height="40" stroke="rgb(0,0,0)" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="128" x="439" y="46" /> + <polygon fill="rgb(255,255,255)" points="63,50 63,55 80,55 80,60 63,60 63,65 77,80 70,80 60,70 50,80 43,80 57,65 57,60 40,60 40,55 57,55 57,50" stroke="rgb(0,0,0)" /> + <ellipse cx="60" cy="45" fill="rgb(255,255,255)" rx="7" ry="7" stroke="rgb(0,0,0)" /> + <ellipse cx="30" cy="40" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="27" y="44">1</text> + <rect fill="rgb(255,255,255)" height="40" stroke="rgb(0,0,0)" width="128" x="120" y="40" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="166" y="60">Apache</text> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="133" y="70">Authenticates user</text> + <ellipse cx="120" cy="40" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="117" y="44">2</text> + <rect fill="rgb(255,255,255)" height="40" stroke="rgb(0,0,0)" width="128" x="120" y="120" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="170" y="139">SSSD</text> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="138" y="149">Provides user info</text> + <ellipse cx="120" cy="120" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="117" y="124">3</text> + <rect fill="rgb(255,255,255)" height="40" stroke="rgb(0,0,0)" width="128" x="278" y="40" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="300" y="59">Proxy Transport</text> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="289" y="71">Request + Metadata</text> + <ellipse cx="278" cy="40" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="275" y="44">4</text> + <rect fill="rgb(255,255,255)" height="40" stroke="rgb(0,0,0)" width="128" x="436" y="40" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="473" y="60">App Server</text> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="490" y="70">AAA</text> + <ellipse cx="436" cy="40" fill="pink" rx="12" ry="12" stroke="rgb(0,0,0)" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="433" y="44">5</text> + <path d="M 88 60 L 112 60" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="81,60 88,56 88,64 81,60" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="119,60 112,56 112,64 119,60" stroke="rgb(0,0,0)" /> + <path d="M 414 60 L 428 60" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="407,60 414,56 414,64 407,60" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="435,60 428,56 428,64 435,60" stroke="rgb(0,0,0)" /> + <path d="M 184 88 L 184 112" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="184,81 180,88 188,88 184,81" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="184,119 180,112 188,112 184,119" stroke="rgb(0,0,0)" /> + <path d="M 256 60 L 270 60" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="249,60 256,56 256,64 249,60" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="277,60 270,56 270,64 277,60" stroke="rgb(0,0,0)" /> + <path d="M 184 88 L 184 112" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="184,81 180,88 188,88 184,81" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="184,119 180,112 188,112 184,119" stroke="rgb(0,0,0)" /> + <path d="M 256 60 L 270 60" fill="none" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="249,60 256,56 256,64 249,60" stroke="rgb(0,0,0)" /> + <polygon fill="rgb(0,0,0)" points="277,60 270,56 270,64 277,60" stroke="rgb(0,0,0)" /> +</svg> diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_03.diag b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_03.diag new file mode 100644 index 00000000..6ece3760 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_03.diag @@ -0,0 +1,31 @@ +seqdiag { + // Set edge properties + //edge_length = 300; // default value is 192 + //span_height = 80; // default value is 40 + + // Set fontsize. + //default_fontsize = 12; // default value is 11 + + // Numbering edges automaticaly + autonumber = False; + + // Change note color + default_note_color = lightblue; + + Client -> Apache [label = "Request"]; + === Apache mod_auth_kerb === + Client <- Apache [label = "401 Unauthorized"]; + Client -> Apache [label = "Authorization: Credentials"]; + Apache -> Apache [label = "Set\nUser Name\nAuth Type"]; + === Apache mod_lookup_identity === + Apache -> SSSD [label = "Get User Info"]; + SSSD --> IdP [label = "Get User Info", leftnote = "Only if\nnot cached\nby SSSD"]; + SSSD <-- IdP [label = "Return User Info"]; + Apache <- SSSD [label = "Return User Info"]; + Apache -> Apache [label = "Set User specific\nenvironment\nvariables"]; + === Apache mod_proxy === + Apache -> Container [label = "Proxy With User's Metadata"]; + Apache <- Container [label = "Response"]; + Client <- Apache [label = "Response"]; + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_03.svg b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_03.svg new file mode 100644 index 00000000..91e8b1be --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_03.svg @@ -0,0 +1,143 @@ +<?xml version='1.0' encoding='UTF-8'?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd"> +<svg viewBox="0 0 1024 1227" xmlns="http://www.w3.org/2000/svg" xmlns:inkspace="http://www.inkscape.org/namespaces/inkscape" xmlns:xlink="http://www.w3.org/1999/xlink"> + <defs id="defs_block"> + <filter height="1.504" id="filter_blur" inkspace:collect="always" width="1.1575" x="-0.07875" y="-0.252"> + <feGaussianBlur id="feGaussianBlur3780" inkspace:collect="always" stdDeviation="4.2" /> + </filter> + </defs> + <title>blockdiag</title> + <desc>seqdiag { + // Set edge properties + //edge_length = 300; // default value is 192 + //span_height = 80; // default value is 40 + + // Set fontsize. + //default_fontsize = 12; // default value is 11 + + // Numbering edges automaticaly + autonumber = False; + + // Change note color + default_note_color = lightblue; + + Client -> Apache [label = "Request"]; + === Apache mod_auth_kerb === + Client <- Apache [label = "401 Unauthorized"]; + Client -> Apache [label = "Authorization: Credentials"]; + Apache -> Apache [label = "Set\nUser Name\nAuth Type"]; + === Apache mod_lookup_identity === + Apache -> SSSD [label = "Get User Info"]; + SSSD --> IdP [label = "Get User Info", leftnote = "Only if\nnot cached\nby SSSD"]; + SSSD <-- IdP [label = "Return User Info"]; + Apache <- SSSD [label = "Return User Info"]; + Apache -> Apache [label = "Set User specific\nenvironment\nvariables"]; + === Apache mod_proxy === + Apache -> Container [label = "Proxy With User's Metadata"]; + Apache <- Container [label = "Response"]; + Client <- Apache [label = "Response"]; + +} +</desc> + <rect fill="rgb(0,0,0)" height="1065" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="8" x="127" y="140" /> + <rect fill="rgb(0,0,0)" height="142" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="8" x="319" y="140" /> + <rect fill="rgb(0,0,0)" height="815" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="8" x="319" y="344" /> + <rect fill="rgb(0,0,0)" height="200" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="8" x="511" y="586" /> + <rect fill="rgb(0,0,0)" height="70" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="8" x="703" y="654" /> + <rect fill="rgb(0,0,0)" height="64" style="filter:url(#filter_blur);opacity:0.7;fill-opacity:1" width="8" x="895" y="1031" /> + <polygon fill="rgb(0,0,0)" points="420,636 491,636 499,644 499,672 420,672 420,636" stroke="rgb(0,0,0)" 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320 1215" fill="none" stroke="rgb(0,0,0)" stroke-dasharray="8 4" /> + <rect fill="moccasin" height="142" stroke="rgb(0,0,0)" width="8" x="316" y="134" /> + <rect fill="moccasin" height="815" stroke="rgb(0,0,0)" width="8" x="316" y="338" /> + <path d="M 512 80 L 512 1215" fill="none" stroke="rgb(0,0,0)" stroke-dasharray="8 4" /> + <rect fill="moccasin" height="200" stroke="rgb(0,0,0)" width="8" x="508" y="580" /> + <path d="M 704 80 L 704 1215" fill="none" stroke="rgb(0,0,0)" stroke-dasharray="8 4" /> + <rect fill="moccasin" height="70" stroke="rgb(0,0,0)" width="8" x="700" y="648" /> + <path d="M 896 80 L 896 1215" fill="none" stroke="rgb(0,0,0)" stroke-dasharray="8 4" /> + <rect fill="moccasin" height="64" stroke="rgb(0,0,0)" width="8" x="892" y="1025" /> + <rect fill="rgb(255,255,255)" height="40" stroke="rgb(0,0,0)" width="128" x="64" y="40" /> + <text fill="rgb(0,0,0)" font-family="sansserif" font-size="11" font-style="normal" font-weight="normal" x="113" y="64">Client</text> + 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style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#Arrow2Mstart-7);marker-end:url(#Arrow2Mend-1)" + d="m 547.15383,265.36883 42.20475,-0.2701" + id="path16193" + inkscape:connector-type="polyline" + inkscape:connector-curvature="0" /> + <path + style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1;marker-start:url(#Arrow2Mstart-7);marker-end:url(#Arrow2Mend-1)" + d="m 56.066913,192.67869 248.271767,0" + id="path17038" + inkscape:connector-type="polyline" + inkscape:connector-curvature="0" + inkscape:connection-start="#g7018-9" + inkscape:connection-start-point="d4" /> + </g> +</svg> diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_auth_sequence.png b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_auth_sequence.png Binary files differnew file mode 100644 index 00000000..9f9a0b49 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_auth_sequence.png diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_auth_sequence.wsd b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_auth_sequence.wsd new file mode 100644 index 00000000..f97ed1ee --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_auth_sequence.wsd @@ -0,0 +1,23 @@ +title Federated Authentication with SSSD + +# This walks through the federated authentication sequence where a claim from a +# third-party IdP system is posted to the ODL token endpoint in exchange for an +# access token. The claim information is assumed to be in format specific to the +# third-party IdP system and assumed to be captured via either Apache environment +# variables (Servlet attributes) or HTTP headers. + +Client -> Apache WebServer: authenticate +note right of Client +credentials +end note +Apache WebServer -> SSSD: authenticate +SSSD -> LDAP/AD : authenticate +SSSD -> Apache WebServer: claim +Apache WebServer -> ServletContainer: CGI variables +ServletContainer -> SSSD Plugin: Servlet attributes/headers +SSSD Plugin -> SSSD Plugin : transformClaim +SSSD Plugin -> TokenEndPoint : claim +TokenEndPoint -> TokenEndPoint : createToken +TokenEndPoint -> Client : refresh token, list of authorized domains +Client -> TokenEndPoint : refresh token, domain +TokenEndPoint -> Client : access token diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_configuration.rst b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_configuration.rst new file mode 100644 index 00000000..7f912d94 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/docs/sssd_configuration.rst @@ -0,0 +1,1687 @@ +################################################ +Federated Authentication Utilizing Apache & SSSD +################################################ + +:Author: John Dennis +:Email: jdennis@redhat.com + +.. contents:: Table of Contents + +************ +Introduction +************ + +Applications should not need to handle the burden of authentication +and authorization. These are complex technologies further complicated +by the existence of a wide variety of authentication +mechanisms. Likewise there are numerous identity providers (IdP) which +one may wish to utilize, perhaps in a federated manner. The potential +to make critical mistakes are high while consuming significant +engineering resources. Ideally an application should "outsource" it's +authentication to an "expert" and avoid unnecessary development costs. + +For web based applications (both conventional HTML and REST API) there +has been a trend to embed a simple HTTP server in the application or +application server which handles the HTTP requests eschewing the use +of a traditional web server such as Apache. + +.. figure:: sssd_01.png + :align: center + + _`Figure 1.` + +But traditional web servers have a lot of advantages. They often come +with extensive support for technologies you might wish to utilize in +your application. It would require signification software engineering +to add support for those technologies in your application. The problem +is compounded by the fact many of these technologies demand domain +expertise which is unlikely to be available in the application +development team. Another problem is the libraries needed to utilize +the technology may not even be available in the programming language +the application is being developed in. Fundamentally an application +developer should focus on developing their application instead of +investing resources into implementing complex code for the ancillary +technologies the application may wish to utilize. + +Therefore fronting your application with a web server such as Apache +makes a lot of sense. One should allow Apache to handle complex tasks +such as multiple authentication mechanisms talking to multiple +IdP's. Suppose you want your application to handle Single Sign-On +(SSO) via Kerberos or authentication based on X509 certificates +(i.e. PKI). Apache already has extensions to handle these which have +been field proven, it would be silly to try and support these in your +application. Apache also comes with other useful extensions such as +``mod_identity_lookup`` which can extract metadata about an +authenticated user from multiple sources such as LDAP, +Active Directory, NIS, etc. + +By fronting your application with Apache and allowing Apache to handle +the complex task of authentication, identity lookups etc. you've +greatly increased the features of your application while at the same +time reducing application development time along with increasing +application security and robustness. + +.. figure:: sssd_02.png + :align: center + + _`Figure 2.` + +When Apache fronts your application you will be passed the results of +authentication and identity lookups. Your application only needs a +simple mechanism to accept these values. There are a variety of ways +the values can be passed from Apache to your application which will be +discussed in later sections. + +Authentication & Identity Properties +==================================== + +Authentication is proving that a user is who they claim to be, in +other words after authentication the user has a proven identity. In +security parlance the authenticated entity is call a +principal. Principals may be humans, machines or +services. Authorization is distinct from authentication. Authorization +declares what actions an authenticated principal may perform. For +example, does a principal have permission to read a certain file, run +a specific command, etc. Identity metadata is typically bound to the +principal to provide extra information. Examples include the users +full name, their organization, the groups they are members of, etc. + +Apache can provide both authentication and identity metadata to an +application freeing the application of this task. Authorization +usually will remain the province of the application. A typical +design pattern is to assign roles to a principal based on identity +properties. As the application executes on behalf of a principal the +application will check if the principal has the necessary role needed +to perform the operation. + +Apache ships with a wide variety of authentication modules. After an +Apache authentication module successfully authenticates a principal, it +sets internal variables identifying the principal and the +authentication method used to authenticate the principal. These are +exported as the CGI variables REMOTE_USER and AUTH_TYPE respectively +(see `CGI Export Issues`_ for further information). + +Identity Properties +------------------- + +Most Apache authentication modules do not have access to any of the +identity properties bound to the authenticated principal. Those +identity properties must be provided by some other mechanism. Typical +mechanisms include lookups in LDAP, Active Directory, NIS, POSIX +passwd/gecos and SQL. Managing these lookups can be difficult +especially in a networked environment where services may be +temporarily unavailable and/or in a enterprise deployment where +identity sources must be multiplexed across a variety of services +according to enterprise wide policy. + +`SSSD`_ (System Security Services Daemon) is designed to alleviate many +of the problems surrounding authentication and identity property +lookup. SSSD can provide identity properties via D-Bus using it's +InfoPipe (IFP) feature. The `mod_identity_lookup`_ Apache module is +given the name of the authenticated principal and makes available +identity properties via Apache environment variables (see `Configure +SSSD IFP`_ for details). + +Exporting & Consuming Identity Metadata +======================================= + +The authenticated principal (REMOTE_USER), the mechanism used to +authenticate the principal (AUTH_TYPE) and identity properties +(supplied by SSSD IFP) are exported to the application which trusts +this metadata to be valid. + +How is this identity metadata exported from Apache and then be +consumed by a Java EE Servlet? + +The architectural design inside Apache tries to capitalize on the +existing CGI standard (`CGI RFC`_) as much as possible. CGI defines +these relevant environment variables: + + * REMOTE_USER + * AUTH_TYPE + * REMOTE_ADDR + * REMOTE_HOST + + +Transporting Identity Metadata from Apache to a Java EE Servlet +=============================================================== + +In following figure we can see that the user connects to Apache +instead of the servlet container. Apache authenticates the user, looks +up the principal's identity information and then proxies the request +to the servlet container. The additional identity metadata must be +included in the proxy request in order for the servlet to extract it. + +.. figure:: sssd_03.png + :align: center + + _`Figure 3.` + +The Java EE Servlet API is designed with the HTTP protocol in mind +however the servlet never directly accesses the HTTP protocol stream. +Instead it uses the servlet API to get access to HTTP request +data. The responsibility for HTTP communication rests with the +container's ``Connector`` objects. When the servlet API needs +information it works in conjunction with the ``Connector`` to supply +it. For example the ``HttpServletRequest.getRemoteHost()`` method +interrogates information the ``Connector`` placed on the internal +request object. Analogously ``HttpServletRequest.getRemoteUser()`` +interrogates information placed on the internal request object by an +authentication filter. + +But what happens when a HTTP request is proxied to a servlet container +by Apache and ``getRemoteHost()`` or ``getRemoteUser()`` is called? Most +``Connector`` objects do not understand the proxy scenario, to them +a request from a proxy looks just like a request sent directly to the +servlet container. Therefore ``getRemoteHost()`` or ``getRemoteUser()`` +ends up returning information relative to the proxy instead of the +user who connected to the proxy because it's the proxy who connected +to the servlet container and not the end user. There are 2 fundamental +approaches which allow the servlet API to return data supplied by the +proxy: + + 1. Proxy uses special protocol (e.g. AJP) to embed metadata. + 2. Metadata is embedded in an HTTP extension by the proxy (i.e. headers) + +Proxy With AJP Protocol +----------------------- + +The AJP_ protocol was designed as a protocol to exchange HTTP requests +and responses between Apache and a Java EE Servlet Container. One of +its design goals was to improve performance by translating common text +values appearing in HTTP requests to a more compact binary form. At +the same time AJP provided a mechanism to supply metadata about the +request to the servlet container. That metadata is encoded in an AJP +attribute (a name/value pair). The Apache AJP Proxy module looks up +information in the internal Apache request object (e.g. remote user, +remote address, etc.) and encodes that metadata in AJP attributes. On +the servlet container side a AJP ``Connector`` object is aware of these +metadata attributes, extracts them from the protocol and supplies +their values to the upper layers of the servlet API. Thus a call to +``HttpServletRequest.getRemoteUser()`` made by a servlet will receive +the value set by Apache prior to the proxy. This is the desired and +expected behavior. A servlet should be ignorant of the consequences of +proxies; the servlet API should behave the same regardless of the +presence of a proxy. + +The AJP protocol also has a general purpose attribute mechanism whereby +any arbitrary name/value pair can be passed. This proxy metadata can +be retrieved by a servlet by calling ``ServletRequest.getAttribute()`` +[1]_ When Apache mod_proxy_ajp is being used the authentication +metadata for the remote user and auth type are are automatically +inserted into the AJP protocol and the AJP ``Connector`` object on +the servlet receiving end supplies those values to +``HttpServletRequest.getRemoteHost()`` and +``HttpServletRequest.getRemoteUser()`` respectively. But the identity +metadata supplied by ``mod_identity_lookup`` needs to be explicitly +encoded into an AJP attribute (see `Configure SSSD IFP`_ for details) +that can later be retrieved by ``ServletRequest.getAttribute()``. + +Proxy With HTTP Protocol +------------------------ + +Although the AJP protocol offers a number of nice advantages sometimes +it's not an option. Not all servlet containers support AJP or there +may be some other deployment constraint that precludes its use. In this +case option 2 from above needs to be used. Option 2 requires only the +defined HTTP protocol be used without any "out of band" metadata. The +conventional way to attach extension metadata to a HTTP request is to +add extension HTTP headers. + +One problem with using extension HTTP headers to pass metadata to a +servlet is the expectation the servlet API will have the same +behavior. In other words the value returned by +``HttpServletRequest.getRemoteUser()`` should not depend on whether the +proxy request was exchanged with the AJP protocol or the HTTP +protocol. The solution to this is to wrap the ``HttpServletRequest`` +object in a servlet filter. The wrapper overrides certain request +methods (e.g. ``getRemoteUser()``). The override method looks to see if +the metadata is in the extension HTTP headers, if so it returns the +value found in the extension HTTP header otherwise it defers to the +existing servlet implementation. The ``ServletRequest.getAttribute()`` is +overridden in an analogous manner in the wrapper filter. Any call to +``ServletRequest.getAttribute()`` is first checked to see if the value +exists in the extension HTTP header first. + +Metadata supplied by Apache that is **not** part of the normal Java +EE Servlet API **always** appears to the servlet via the +``ServletRequest.getAttribute()`` method regardless of the proxy +transport mechanism. The consequence of this is a servlet +continues to utilize the existing Java EE Servlet API without concern +for intermediary proxies, *and* any other metadata supplied by a proxy +is *always* retrieved via ``ServletRequest.getAttribute()`` (see the +caveat about ``ServletRequest.getAttributeNames()`` [1]_). + +******************* +Configuration Guide +******************* + +Although Apache authentication and SSSD identity lookup can operate +with a variety of authentication mechanisms, IdP's and identity +metadata providers we will demonstrate a configuration example which +utilizes the FreeIPA_ IdP. FreeIPA excels at Kerberos SSO authentication, +Active Directory integration, LDAP based identity metadata storage and +lookup, DNS services, host based RBAC, SSH key management, certificate +management, friendly web based console, command line tools and many +other advanced IdP features. + +The following configuration steps will need to be performed: + +1. Install FreeIPA_ by following the installation guides in the FreeIPA_ + documentation area. When you install FreeIPA_ you will need to select a + realm (a.k.a domain) in which your users and hosts will exist. In + our example we will use the ``EXAMPLE.COM`` realm. + +2. Install and configure the Apache HTTP web server. The + recommendation is to install and run the Apache HTTP web server on + the same system the Java EE Container running AAA is installed on. + +3. Configure the proxy connector in the Java EE Container and set the + ``secureProxyPorts``. + +We will also illustrate the operation of the system by adding an +example user named ``testuser`` who will be a member of the +``odl_users`` and ``odl_admin`` groups. + +Add Example User and Groups to FreeIPA +====================================== + +After installing FreeIPA you will need to populate FreeIPA with your users, +groups and other data. Refer to the documentation in FreeIPA_ for the +variety of ways this task can be performed; it runs the gamut from web +based console to command line utilities. For simplicity we will use +the command line utilities. + +Identify yourself to FreeIPA as an administrator; this will give you the +necessary privileges needed to create and modify data in FreeIPA. You do +this by obtaining a Kerberos ticket for the ``admin`` user (or any +other user in FreeIPA with administrator privileges. + +:: + + % kinit admin@EXAMPLE.COM + +Create the example ``odl_users`` and `odl_admin`` groups. + +:: + + % ipa group-add odl_users --desc 'OpenDaylight Users' + % ipa group-add odl_admin --desc 'OpenDaylight Administrators' + +Create the example user ``testuser`` with the first name "Test" and a +last name of "User" and an email address of "test.user@example.com" + +:: + + % ipa user-add testuser --first Test --last User --email test.user@example.com + +Now add ``testuser`` to the ``odl_users`` and ``odl_admin`` groups. + +:: + + % ipa group-add-member odl_users --user testuser + % ipa group-add-member odl_admin --user testuser + +Configure Apache +================ + +A number of Apache configuration directives will need to be specified +to implement the Apache to application binding. Although these +configuration directives can be located in any number of different +Apache configuration files the most sensible approach is to co-locate +them in a single application configuration file. This greatly +simplifies the deployment of your application and isolates your +application configuration from other applications and services sharing +the Apache installation. In the examples that follow our application +will be named ``my_app`` and the Apache application configuration file +will be named ``my_app.conf`` which should be located in Apache's +``conf.d/`` directory. The web resource we are protecting and +supplying identity metadata for will be named ``my_resource``. + + +Configure Apache for Kerberos +----------------------------- + +When FreeIPA is deployed Kerberos is the preferred authentication mechanism +for Single Sign-On (SSO). FreeIPA also provides identity metadata via +Apache ``mod_identity_lookup``. To protect your ``my_resource`` resource +with Kerberos authentication identify your resource as requiring +Kerberos authentication in your ``my_app.conf`` Apache +configuration. For example: + +:: + + <Location my_resource> + AuthType Kerberos + AuthName "Kerberos Login" + KrbMethodNegotiate On + KrbMethodK5Passwd Off + KrbAuthRealms EXAMPLE.COM + Krb5KeyTab /etc/http.keytab + require valid-user + </Location> + +You will need to replace EXAMPLE.COM in the KrbAuthRealms declaration +with the Kerberos realm for your deployment. + + +Configure SSSD IFP +------------------ + +To use the Apache ``mod_identity_lookup`` module to supply identity +metadata you need to do the following in ``my_app.conf``: + +1. Enable the module + + :: + + LoadModule lookup_identity_module modules/mod_lookup_identity.so + +2. Apply the identity metadata lookup to specific URL's + (e.g. ``my_resource``) via an Apache location directive. In this + example we look up the "mail" attribute and assign it to the + REMOTE_USER_EMAIL environment variable. + + :: + + <LocationMatch "my_resource"> + LookupUserAttr mail REMOTE_USER_EMAIL + </LocationMatch> + +3. Export the environment variable via the desired proxy protocol, see + `Exporting Environment Variables to the Proxy`_ + +Exporting Environment Variables to the Proxy +-------------------------------------------- + +First you need to decide which proxy protocol you're going to use, AJP +or HTTP and then determine the target address and port to proxy to. The +recommended configuration is to run both the Apache server and the +servlet container on the same host and to proxy requests over the +local loopback interface (see `Declaring the Connector Ports for +Authentication Proxies`_). In our examples we'll use port 8383. Thus +in ``my_app.conf`` add a proxy declaration. + +For HTTP Proxy + +:: + + ProxyPass / http://localhost:8383/ + ProxyPassReverse / http://localhost:8383/ + +For AJP Proxy + +:: + + ProxyPass / ajp://localhost:8383/ + ProxyPassReverse / ajp://localhost:8383/ + +AJP Exports +^^^^^^^^^^^ + +AJP automatically forwards REMOTE_USER and AUTH_TYPE making them +available to the ``HttpServletRequest`` API, thus you do not need to +explicitly forward these in the proxy configuration. However all other +``mod_identity_lookup`` metadata must be explicitly forwarded as an AJP +attribute. These AJP attributes become visible in the +``ServletRequest.getAttribute()`` method [1]_. + +The Apache ``mod_proxy_ajp`` module automatically sends any Apache +environment variable prefixed with "AJP\_" as an AJP attribute which +can be retrieved with ``ServletRequest.getAttribute()``. Therefore the +``mod_identity_lookup`` directives which specify the Apache environment +variable to set with the result of a lookup must be prefixed with +"AJP\_". Using the above example of looking up the principal's email +address we modify the environment variable to include the "AJP\_" +prefix. Thusly: + + :: + + <LocationMatch "my_resource"> + LookupUserAttr mail AJP_REMOTE_USER_EMAIL + </LocationMatch> + +The sequence of events is as follows: + + 1. When the URL matches "my_resource". + + 2. ``mod_identity_lookup`` retrieves the mail attribute for the + principal. + + 3. ``mod_identity_lookup`` assigns the value of the mail attribute + lookup to the AJP_REMOTE_USER_EMAIL Apache environment variable. + + 4. ``mod_proxy_ajp`` encodes AJP_REMOTE_USER_EMAIL environment + variable into an AJP attribute in the AJP protocol because the + environment variable is prefixed with "AJP\_". The name of the + attribute is stripped of it's "AJP\_" prefix thus the + AJP_REMOTE_USER_EMAIL environment variable is transferred as the + AJP attribute REMOTE_USER_EMAIL. + + 5. The request is forwarded (i.e. proxied) to servlet container + using the AJP protocol. + + 6. The servlet container's AJP ``Connector`` object is assigned each AJP + attribute to the set of attributes on the ``ServletRequest`` + attribute list. Thus a call to + ``ServletRequest.getAttribute("REMOTE_USER_EMAIL")`` yields the + value set by ``mod_identity_lookup``. + + +HTTP Exports +^^^^^^^^^^^^ + +When HTTP proxy is used there are no automatic or implicit metadata +transfers; every metadata attribute must be explicitly handled on both +ends of the proxy connection. All identity metadata attributes are +transferred as extension HTTP headers, by convention those headers are +prefixed with "X-SSSD-". + +Using the original example of looking up the principal's email +address we must now perform two independent actions: + + 1. Lookup the value via ``mod_identity_lookup`` and assign to an + Apache environment variable. + + 2. Export the environment variable in the request header with the + "X-SSSD-" prefix. + + :: + + <LocationMatch "my_resource"> + LookupUserAttr mail REMOTE_USER_EMAIL + RequestHeader set X-SSSD-REMOTE_USER_EMAIL %{REMOTE_USER_EMAIL}e + </LocationMatch> + +The sequence of events is as follows: + + 1. When the URL matches "my_resource". + + 2. ``mod_identity_lookup`` retrieves the mail attribute for the + principal. + + 3. ``mod_identity_lookup`` assigns the value of the mail attribute + lookup to the REMOTE_USER_EMAIL Apache environment variable. + + 4. Apache's RequestHeader directive executes just prior to the + request being forwarded (i.e. in the Apache fixup stage). It adds + the header X-SSSD-REMOTE_USER_EMAIL and assigns the value for + REMOTE_USER_EMAIL found in the set of environment variables. It + does this because the syntax %{XXX} is a variable reference for + the name XXX and the 'e' appended after the closing brace + indicates the lookup is to be performed in the set of environment + variables. + + 5. The request is forwarded (i.e. proxied) to the servlet container + using the HTTP protocol. + + 6. When ``ServletRequest.getAttribute()`` is called the ``SssdFilter`` + wrapper intercepts the ``getAttribute()`` method. It looks for an + HTTP header of the same name with "X-SSSD-" prefixed to it. In + this case ``getAttribute("REMOTE_USER_EMAIL")`` causes the lookup of + "X-SSSD-REMOTE_USER_EMAIL" in the HTTP headers, if found that + value is returned. + +AJP Proxy Example Configuration +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +If you are using AJP proxy to the Java EE Container on port 8383 your +``my_app.conf`` Apache configuration file will probably look like +this: + +:: + + <LocationMatch "my_resource"> + + ProxyPass / ajp://localhost:8383/ + ProxyPassReverse / ajp://localhost:8383/ + + LookupUserAttr mail AJP_REMOTE_USER_EMAIL " " + LookupUserAttr givenname AJP_REMOTE_USER_FIRSTNAME + LookupUserAttr sn AJP_REMOTE_USER_LASTNAME + LookupUserGroups AJP_REMOTE_USER_GROUPS ":" + + </LocationMatch> + +Note the specification of the colon separator for the +``LookupUserGroups`` operation. [3]_ + +HTTP Proxy Example Configuration +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +If you are using a conventional HTTP proxy to the Java EE Container on +port 8383 your ``my_app.conf`` Apache configuration file will probably +look like this: + +:: + + <LocationMatch "my_resource"> + + ProxyPass / http://localhost:8383/ + ProxyPassReverse / http://localhost:8383/ + + RequestHeader set X-SSSD-REMOTE_USER expr=%{REMOTE_USER} + RequestHeader set X-SSSD-AUTH_TYPE expr=%{AUTH_TYPE} + RequestHeader set X-SSSD-REMOTE_HOST expr=%{REMOTE_HOST} + RequestHeader set X-SSSD-REMOTE_ADDR expr=%{REMOTE_ADDR} + + LookupUserAttr mail REMOTE_USER_EMAIL + RequestHeader set X-SSSD-REMOTE_USER_EMAIL %{REMOTE_USER_EMAIL}e + + LookupUserAttr givenname REMOTE_USER_FIRSTNAME + RequestHeader set X-SSSD-REMOTE_USER_FIRSTNAME %{REMOTE_USER_FIRSTNAME}e + + LookupUserAttr sn REMOTE_USER_LASTNAME + RequestHeader set X-SSSD-REMOTE_USER_LASTNAME %{REMOTE_USER_LASTNAME}e + + LookupUserGroups REMOTE_USER_GROUPS ":" + RequestHeader set X-SSSD-REMOTE_USER_GROUPS %{REMOTE_USER_GROUPS}e + + </LocationMatch> + +Note the specification of the colon separator for the +``LookupUserGroups`` operation. [3]_ + + +Configure Java EE Container Proxy Connector +=========================================== + +The Java EE Container must be configured to listen for connections +from the Apache web server. A Java EE Container specifies connections +via a ``Connector`` object. A ``Connector`` **must** be dedicated +**exclusively** for handling authenticated requests from the Apache +web server. The reason for this is explained in `The Proxy +Problem`_. In addition ``ClaimAuthFilter`` needs to validate that any +request it processes originated from the trusted Apache instance. This +is accomplished by dedicating one or more ports exclusively for use by +the trusted Apache server and enumerating them in the +``secureProxyPorts`` configuration as explained in `Locking Down the +Apache to Java EE Container Channel`_ and `Declaring the Connector +Ports for Authentication Proxies`_. + +Configure Tomcat Proxy Connector +-------------------------------- + +The Tomcat Java EE Container defines Connectors in its ``server.xml`` +configuration file. + +:: + + <Connector + address="127.0.0.1" + port="8383" + protocol="HTTP/1.1" + tomcatAuthentication="false" + connectionTimeout="20000" + redirectPort="8443" + /> + + +:address: + This should be the loopback address as explained `Locking Down the + Apache to Java EE Container Channel`_. + +:port: + In our examples we've been using port 8383 as the proxy port. The + exact port is not important but it must be consistent with the + Apache proxy port, the ``Connector`` declaration, and the port value + in ``secureProxyPorts``. + +:protocol: + As explained in `Transporting Identity Metadata from Apache to a + Java EE Servlet`_ you will need to decide if you are using HTTP or + AJP as the proxy protocol. In the example above the protocol is set + for HTTP, if you use AJP instead the protocol should instead be + "AJP/1.3". + +:tomcatAuthentication: + This boolean flag tells Tomcat whether Tomcat should perform + authentication on the incoming requests or not. Since authentication + is performed by Apache we do not want Tomcat to perform + authentication therefore this flag must be set to false. + +The AAA system needs to know which port(s) the trusted Apache proxy +will be sending requests on so it can trust the request authentication +metadata. See `Declaring the Connector Ports for Authentication +Proxies`_ for more information). Set ``secureProxyPorts`` in the +FederationConfiguration. + +:: + + secureProxyPorts=8383 + + +Configure Jetty Proxy Connector +------------------------------- + +The Jetty Java EE Container defines Connectors in its ``jetty.xml`` +configuration file. + +:: + + <!-- Trusted Authentication Federation proxy connection --> + <Call name="addConnector"> + <Arg> + <New class="org.eclipse.jetty.server.nio.SelectChannelConnector"> + <Set name="host">127.0.0.1</Set> + <Set name="port">8383</Set> + <Set name="maxIdleTime">300000</Set> + <Set name="Acceptors">2</Set> + <Set name="statsOn">false</Set> + <Set name="confidentialPort">8445</Set> + <Set name="name">federationConn</Set> + <Set name="lowResourcesConnections">20000</Set> + <Set name="lowResourcesMaxIdleTime">5000</Set> + </New> + </Arg> + </Call> + +:host: + This should be the loopback address as explained `Locking Down the + Apache to Java EE Container Channel`_. + +:port: + In our examples we've been using port 8383 as the proxy port. The + exact port is not important but it must be consistent with the + Apache proxy port, the ``Connector`` declaration, and the port value + in ``secureProxyPorts``. + + +Note, values in Jetty XML can also be parameterized so that they may +be passed from property files or set on the command line. Thus +typically the port is set within Jetty XML, but uses the Property +element to be customizable. Thus the above ``host`` and ``port`` +properties could be specificed this way: + +:: + + <Set name="host"> + <Property name="jetty.host" default="127.0.0.1"/> + </Set> + <Set name="port"> + <Property name="jetty.port" default="8383"/> + </Set> + + +The AAA system needs to know which port(s) the trusted Apache proxy +will be sending requests on so it can trust the request authentication +metadata. See `Declaring the Connector Ports for Authentication +Proxies`_ for more information). Set ``secureProxyPorts`` in the +FederationConfiguration. + +************************************************ +How Apache Identity Metadata is Processed in AAA +************************************************ + +`Figure 2.`_ and `Figure 3.`_ illustrates the fact the first stage in +processing a request from a user begins with Apache where the user is +authenticated and SSSD supplies additional metadata about the +user. The original request along with the metadata are subsequently +forwarded by Apache to the Java EE Container. `Figure 4.`_ illustrates +the processing inside the Java EE Container once it receives the +request on one of its secure connectors. + + +.. figure:: sssd_04.png + :align: center + + _`Figure 4.` + +:Step 1: + One or more Connectors have been configured to listen for requests + being forwarded from a trusted Apache instance. The Connector is + configured to communicate using either the HTTP or AJP protocols. + See `Exporting Environment Variables to the Proxy`_ for more + information on selecting a proxy transport protocol. + +:Step 2: + The identity metadata bound to the request needs to be extracted + differently depending upon whether HTTP or AJP is the transport + protocol. To allow later stages in the pipeline to be ignorant of + the transport protocol semantics the ``SssdFilter`` servlet filter + is introduced. The ``SssdFilter`` wraps the ``HttpServletRequest`` + class and intercepts calls which might return the identity + metadata. The wrapper in the filter looks in protocol specific + locations for the metadata. In this manner users of the + ``HttpServletRequest`` are isolated from protocol differences. + + +:Step 3: + + The ``ClaimAuthFilter`` is responsible for determining if identity + metadata is bound to the request. If so all identity metadata is + packaged into an assertion which is then handed off to + ``SssdClaimAuth`` which will transform the identity metadata in the + assertion into a AAA Claim which is the authorizing token for the user. + +:Step 4: + The ``SssdClaimAuth`` object is responsible for transforming the + external federated identity metadata provided by Apache and SSSD into + a AAA claim. The AAA claim is an authorization token which includes + information about the user plus a set of roles. These roles provide the + authorization to perform AAA tasks. Although how roles are assigned is + flexible the expectation is domain and/or group membership will be the + primary criteria for role assignment. Because deciding how to handle + external federated identity metadata is site and deployment specific + we need a loadable policy mechanism. This is accomplished by a set of + transformation rules which transforms the incoming IdP identity + metadata into a AAA claim. For greater clarity this important step is + broken down into smaller units in the shaded box in `Figure 4.`_. + +:Step 4.1: + `The Mapping Rule Processor`_ is designed to accept a JSON object + (set of key/value pairs) as input and emit a different JSON object + as output effectively operating as a transformation engine on + key/value pairs. + +:Step 4.2: + The input assertion is rewritten as a JSON object in the format + required by the Mapping Rule Processor. The JSON assertion is then + passed into the Mapping Rule Processor. + +:Step 4.3: + `The Mapping Rule Processor`_ identified as ``IdPMapper`` evaluates + the input JSON assertion in the context of the mapping rules defined + for the site deployment. If ``IdPMapper`` is able to successfully + transform the input it will return a JSON object which we called the + *mapped* result. If the input JSON assertion is not compatible with + the site specific rules loaded into the ``IdPMapper`` then NULL is + returned by the ``IdPMapper``. + +:Step 4.4: + If a mapped JSON object is returned by the ``IdPMapper`` the mapping + was successful. The values in the mapped result are re-written into + an AAA Claim token. + +How Apache Identity Metadata is Mapped to AAA Values +==================================================== + +A federated IdP supplies metadata in a form unique to the IdP. This is +called an assertion. That assertion must be transformed into a format +and data understood by AAA. More importantly that assertion needs to +yield *authorization roles specific to AAA*. In `Figure 4.`_ Step 4.3 +the ``IdPMapper`` provides the transformation from an external IdP +assertion to an AAA specific claim. It does this via a Mapping Rule +Processor which reads a site specific set of transformation +rules. These mapping rules define how to transform an external IdP +assertion into a AAA claim. The mapping rules also are responsible for +validating the external IdP claim to make sure it is consistent with +the site specific requirements. The operation of the Mapping Rule +Processor and the syntax of the mapping rules are defined in `The +Mapping Rule Processor`_. + +Below is an example mapping rule which might be loaded into the +Mapping Rule Processor. It is assumed there are two AAA roles which +may be assigned [4]_: + +``user`` + A role granting standard permissions for normal ODL users. + +``admin`` + A special role granting full administrative permissions. + +In this example assigning the ``user`` and ``admin`` roles +will be based on group membership in the following groups: + +``odl_users`` + Members of this group are normal ODL users with restricted permissions. + +``odl_admin`` + Members of this group are ODL administrators with permission to + perform all operations. + +Granting of the ``user`` and/or ``admin`` roles based on +membership in the ``odl_users`` and ``odl_admin`` is illustrated in +the follow mapping rule example which also extracts the user principal +and domain information in the preferred format for the site +(e.g. usernames are lowercase without domain suffixes and the domain +is uppercase and supplied separately). + +_`Mapping Rule Example 1.` + +:: + + 1 [ + 2 {"mapping": {"ClientId": "$client_id", + 3 "UserId": "$user_id", + 4 "User": "$username", + 5 "Domain": "$domain", + 6 "roles": "$roles", + 7 }, + 8 "statement_blocks": [ + 9 [ + 10 ["set", "$groups", []], + 11 ["set", "$roles", []] + 12 ], + 13 [ + 14 ["in", "REMOTE_USER", "$assertion"], + 15 ["exit", "rule_fails", "if_not_success"], + 16 ["regexp", "$assertion[REMOTE_USER]", "(?<username>\\w+)@(?<domain>.+)"], + 17 ["exit", "rule_fails", "if_not_success"], + 18 ["lower", "$username", "$regexp_map[username]"], + 19 ["upper", "$domain", "$regexp_map[domain]"], + 20 ], + 21 [ + 22 ["in", "REMOTE_USER_GROUPS", "$assertion"], + 23 ["exit", "rule_fails", "if_not_success"], + 24 ["split", "$groups", "$assertion[REMOTE_USER_GROUPS]", ":"], + 25 ], + 26 [ + 27 ["in", "odl_users", "$groups"], + 28 ["continue", "if_not_success"], + 29 ["append", "$roles", "user"], + 30 ], + 31 [ + 32 ["in", "odl_admin", "$groups"], + 33 ["continue", "if_not_success"], + 34 ["append", "$roles", "admin"] + 35 ], + 36 [ + 37 ["unique", "$roles", "$roles"], + 38 ["length", "$n_roles", "$roles"], + 39 ["compare", "$n_roles", ">", 0], + 40 ["exit", "rule_fails", "if_not_success"], + 41 ], + 42 ] + 43 } + 44 ] + +:Line 1: + Starts a list of rules. In this example only 1 rule is defined. Each + rule is a JSON object containing a ``mapping`` and a required list + of ``statement_blocks``. The ``mapping`` may either be specified + inside a rule as it is here or may be referenced by name in a table + of mappings (this is easier to manage if you have a large number of + rules and small number of mappings). + +:Lines 2-7: + Defines the JSON mapped result. Each key maps to AAA claim. The + value is a rule variable whose value will be substituted if the rule + succeeds. Thus for example the AAA claim value ``User`` will be + assigned the value from the ``$username`` rule variable. +:Line 8: + Begins the list of statement blocks. A statement must be contained + inside a block. +:Lines 9-12: + The first block usually initializes variables that will be + referenced later. Here we initialize ``$groups`` and ``$roles`` to + empty arrays. These arrays may be appended to in later blocks and + may be referenced in the final ``mapping`` output. +:Lines 13-20: + This block sets the user and domain information based on + ``REMOTE_USER`` and exits the rule if ``REMOTE_USER`` is not defined. +:Lines 14-15: + This test is critical, it assures ``REMOTE_USER`` is defined in the + assertion, if not the rule is skipped because we depend on + ``REMOTE_USER``. +:Lines 16-17: + Performs a regular expression match against ``REMOTE_USER`` to split + the username from the domain. The regular expression uses named + groups, in this instance ``username`` and ``domain``. If the regular + expression does not match the rule is skipped. +:Lines 18-19: + These lines reference the previous result of the regular expression + match which are stored in the special variable ``$regexp_map``. The + username is converted to lower case and stored in ``$username`` and + the domain is converted to upper case and stored in ``$domain``. The + choice of case is purely by convention and site requirements. +:Lines 21-35: + These 3 blocks assign roles based on group membership. +:Lines 21-25: + Assures ``REMOTE_USER_GROUPS`` is defined in the assertion; if not, the + rule is skipped. ``REMOTE_USER_GROUPS`` is colon separated list of group + names. In order to operate on the individual group names appearing + in ``REMOTE_USER_GROUPS`` line 24 splits the string on the colon + separator and stores the result in the ``$groups`` array. +:Lines 27-30: + This block assigns the ``user`` role if the user is a member of the + ``odl_users`` group. +:Lines 31-35: + This block assigns the ``admin`` role if the user is a + member of the ``odl_admin`` group. +:Lines 36-41: + This block performs final clean up actions for the rule. First it + assures there are no duplicates in the ``$roles`` array by calling + the ``unique`` function. Then it gets a count of how many items are + in the ``$roles`` array and tests to see if it's empty. If there are + no roles assigned the rule is skipped. +:Line 43: + This is the end of the rule. If we reach the end of the rule it + succeeds. When a rule succeeds the mapping associated with the rule + is looked up. Any rule variable appearing in the mapping is + substituted with its value. + +Using the rules in `Mapping Rule Example 1.`_ and following example assertion +in JSON format: + +_`Assertion Example 1.` + +:: + + { + "REMOTE_USER": "TestUser@example.com", + "REMOTE_AUTH_TYPE": "Negotiate", + "REMOTE_USER_GROUPS": "odl_users:odl_admin", + "REMOTE_USER_EMAIL": "test.user@example.com", + "REMOTE_USER_FIRSTNAME": "Test", + "REMOTE_USER_LASTNAME": "User" + } + +Then the mapper will return the following mapped JSON document. This +is the ``mapping`` defined on line 2 of `Mapping Rule Example 1.`_ with the +variables substituted after the rule successfully executed. Note any +valid JSON data type can be returned, in this example the ``null`` +value is returned for ``ClientId`` and ``UserId``, normal strings for +``User`` and ``Domain`` and an array of strings for the ``roles`` value. + +_`Mapped Result Example 1.` + +:: + + { + "ClientId": null, + "UserId": null, + "User": "testuser", + "Domain": "EXAMPLE.COM", + "roles": ["user", "admin"] + } + + +************************** +The Mapping Rule Processor +************************** + +The Mapping Rule Processor is designed to be as flexible and generic +as possible. It accepts a JSON object as input and returns a JSON +object as output. JSON was chosen because virtually all data can be +represented in JSON, JSON has extensive support and JSON is human +readable. The rules loaded into the Mapping Rule Processor are also +expressed in JSON. One advantage of this is it makes it easy for a +site administrator to define hardcoded values which are always +returned and/or static tables of white and black listed users or users +who are always mapped into certain roles. + +.. include:: mapping.rst + +*********************** +Security Considerations +*********************** + +Attack Vectors +============== + +A Java EE Container fronted by Apache has by definition 2 major +components: + +* Apache +* Java EE Container + +Each of these needs to be secure in its own right. There is extensive +documentation on securing each of these components and the reader is +encouraged to review this material. For the purpose of this discussion +we are most interested in how Apache and the Java EE +Container cooperate to form an integrated security system. Because +Apache is performing authentication on behalf of the Java EE Container, +it views Apache as a trusted partner. Our primary concern is the +communication channel between Apache and the Java EE Container. We +must assure the Java EE Container knows who it's trusted partner is +and that it only accepts security sensitive data from that partner, +this can best be described as `The Proxy Problem`_. + +Forged REMOTE_USER +------------------ + +HTTP request handling is often implemented as a processing pipeline +where individual handlers are passed the request, they may then attach +additional metadata to the request or transform it in some manner +before handing it off to the next stage in the pipeline. A request +handler may also short circuit the request processing pipeline and +cause a response to be generated. Authentication is typically +implemented an as early stage request handler. If a request gets past +an authentication handler later stage handlers can safely assume the +request belongs to an authenticated user. Authorization metadata may +also have been attached to the request. Later stage handlers use the +authentication/authorization metadata to make decisions as to whether +the operations in the request can be satisfied. + +When a request is fielded by a traditional web server with CGI (Common +Gateway Interface, RFC 3875) the request metadata is passed via CGI +meta-variables. CGI meta-variables are often implemented as environment +variables, but in practical terms CGI metadata is really just a set of +name/value pairs a later stage (i.e. CGI script, servlet, etc.) can +reference to learn information about the request. + +The CGI meta-variables REMOTE_USER and AUTH_TYPE relate to +authentication. REMOTE_USER is the identity of the authenticated user +and AUTH_TYPE is the authentication mechanism that was used to +authenticate the user. + +**If a later stage request handler sees REMOTE_USER and AUTH_TYPE as +non-null values it assumes the user is fully authenticated! Therefore +is it essential REMOTE_USER and AUTH_TYPE can only enter the request +pipeline via a trusted source.** + +The Proxy Problem +================= + +In a traditional monolithic web server the CGI meta-variables are +created and managed by the web server, which then passes them to CGI +scripts and executables in a very controlled environment where they +execute in the context of the web server. Forgery of CGI +meta-variables is generally not possible unless the web server has +been compromised in some fashion. + +However in our configuration the Apache web server acts as an identity +processor, which then forwards (i.e. proxies) the request to the Java +EE container (i.e Tomcat, Jetty, etc.). One could think of the Java +EE container as just another CGI script which receives CGI +meta-variables provided by the Apache web server. Where this analogy +breaks down is how Apache invokes the CGI script. Instead of forking a +child process where the child's environment and input/output pipes are +carefully controlled by Apache the request along with its additional +metadata is forwarded over a transport (typically TCP/IP) to another +process, the proxy, which listens on socket. + +The proxy (in this case the Java EE container) reads the request and +the attached metadata and acts upon it. If the request read by the +proxy contains the REMOTE_USER and AUTH_TYPE CGI meta-variables the +proxy will consider the request **fully authenticated!**. Therefore +when the Java EE container is configured as a proxy it is +**essential** it only reads requests from a **trusted** Apache web +server. If any other client aside from the trusted Apache web server +is permitted to connect to the Java EE container that client could +present forged REMOTE_USER and AUTH_TYPE meta-variables, which would be +automatically accepted as valid thus opening a huge security hole. + + +Possible Approaches to Lock Down a Proxy Channel +================================================ + +Tomcat Valves +------------- + +You can use a `Tomcat Remote Address Valve`_ valve to filter by IP or +hostname to only allow a subset of machines to connect. This can be +configured at the Engine, Host, or Context level in the +conf/server.xml by adding something like the following: + +:: + + <!-- allow only LAN IPs to connect --> + <Valve className="org.apache.catalina.valves.RemoteAddrValve" + allow="192.168.1.*"> + </Valve> + +The problem with valves is they are a Tomcat only concept, the +``RemoteAddrValve`` only checks addresses, not port numbers (although +it should be easy to add port checking) and they don't offer anything +better than what is described in `Locking Down the Apache to Java EE +Container Channel`_, which is not container specific. Servlet filters +are always available regardless of the container the servlet is +running in. A filter can check both the address and port number and +refuse to operate on the request if the address and port are not known to +be a trusted authentication proxy. Also note that if the Java EE +Container is configured to accept connections other than from the +trusted HTTP proxy server (a very likely scenario) then filtering at +the connector level is not sufficient because a servlet which trusts +``REMOTE_USER`` must be assured the request arrived only on a +trusted HTTP proxy server connection, not one of the other possible +connections. + +SSL/TLS with client auth +------------------------ + +SSL with client authentication is the ultimate way to lock down a HTTP +Server to Java EE Container proxy connection. SSL with client +authentication provides authenticity, integrity, and +confidentiality. However those desirable attributes come at a +performance cost which may be excessive. Unless a persistent TCP +connection is established between the HTTP server and the Java EE +Container a SSL handshake will need to occur on each request being +proxied, SSL handshakes are expensive. Given that the HTTP server and +the Java EE Container will likely be deployed on the same compute node +(or at a minimum on a secure subnet) the advantage of SSL for proxy +connections may not be warranted because other options are available +for these configuration scenarios; see `Locking Down the Apache to Java EE +Container Channel`_. Also note that if the Java EE +Container is configured to accept connections other than from the +trusted HTTP proxy server (a very likely scenario), then filtering at +the connector level is not sufficient because a servlet which trusts +``REMOTE_USER`` must be assured that the request arrived only on a +trusted HTTP proxy server connection, not one of the other possible +connections. + + +Java Security Manager Permissions +--------------------------------- + +The Java Security Manager allows you define permissions which are +checked at run time before code executes. +``java.net.SocketPermission`` and ``java.net.NetPermission`` would +appear to offer solutions for restricting which host and port a +request containing ``REMOTE_USER`` will be trusted. However security +permissions are applied *after* a request is accepted by a +connector. They are also more geared towards what connections code can +subsequently utilize as opposed to what connection a request was +presented on. Therefore security manager permissions seem to offer little +value for our purpose. One can simply test to see which host sent the +proxy request and on what port it arrived on by looking at the +connection information in the request. Restricting which proxies can +submit trusted requests is better handled at the level of the +connector, which unfortunately is a container implementation +issue. Tomcat and Jetty have different ways of handling connector +specifications. + +AJP requiredSecret +------------------ + +The AJP protocol includes an attribute called ``requiredSecret``, which +can be used to secure the connection between AJP endpoints. When an +HTTP server sends an AJP proxy request to a Java EE Container it +embeds in the protocol transmission a string (``requiredSecret``) +known only to the HTTP server and the Java EE Container. The AJP +connector on the Java EE Container is configured with the +``requiredSecret`` value and will reject as unauthorized any AJP +requests whose ``requiredSecret`` does not match. + +There are two problems with `requiredSecret``. First of all it's not +particularly secure. In fact, it's fundamentally no different than +sending a cleartext password. If the AJP request is not encrypted it +means the ``requiredSecret`` will be sent in the clear which is +probably one of the most egregious security mistakes. If the AJP +request is transmitted in a manner where the traffic can be sniffed, it +would be trivial to recover the ``requiredSecret`` and forge a request +with it. On the other hand encrypting the communication channel +between the HTTP server and the Java EE Container means using SSL +which is fairly heavyweight. But more to the point, if one is using +SSL to encrypt the channel there is a *far better* mechanism to ensure +the HTTP server is who it claims to be than embedding +``requiredSecret``. If one is using SSL you might as well use SSL +client authentication where the HTTP identifies itself via a client +certificate. SSL client authentication is a very robust authentication +mechanism. But doing SSL client authentication, or for that matter +just SSL encryption, for *every* AJP protocol request is prohibitively +expensive from a performance standpoint. + +The second problem with ``requiredSecret`` is that despite being documented +in a number of places it's not actually implemented in Apache +``mod_proxy_ajp``. This is detailed in `bug 53098`_. You can set +``requiredSecret`` in the ``mod_proxy_ajp`` configuration, but it won't +be included in the wire protocol. There is a patch to implement +``requiredSecret`` but, it hasn't made it into any shipping version of +Apache yet. But even if ``requiredSecret`` was implemented it's not +useful. Also one could construct the equivalent of ``requiredSecret`` +from other AJP attributes and/or an HTTP extension header but those +would suffer from the same security issues ``requiredSecret`` has, +therefore it's mostly pointless. + +Java EE Container Issues +======================== + +Jetty Issues +------------ + +Jetty is a Java EE Container which can be used +as alternative to Tomcat. Jetty is an Eclipse project. Recent versions +of Jetty have dropped support for AJP; this is described in the +`Jetty AJP Configuration Guide`_ which states: + + Configuring AJP13 Using mod_jk or mod_proxy_ajp. Support for this + feature has been dropped with Jetty 9. If you feel this should be + brought back please file a bug. + +Eclipse `Bug 387928`_ *Retire jetty-ajp* was opened to track the +removal of AJP in Jetty and is now closed. + +Tomcat Issues +------------- + +You should refer the `Tomcat Security How-To`_ for a full discussion +of Tomcat security issues. + +The tomcatAuthentication attribute is used with the AJP connectors to +determine if Tomcat should authenticate the user or if authentication +can be delegated to the reverse proxy that will then pass the +authenticated username to Tomcat as part of the AJP protocol. + +The requiredSecret attribute in AJP connectors configures a shared +secret between Tomcat and the reverse proxy in front of Tomcat. It is used +to prevent unauthorized connections over AJP protocol. + +Locking Down the Apache to Java EE Container Channel +==================================================== + +The recommended approach to lock down the proxy channel is: + + * Run both Apache and the servlet container on the same host. + + * Configure Apache to forward the proxy request on the loopback + interface (e.g. 127.0.0.1 also known as ``localhost``). This + prohibits any external IP address from connecting, only processes + running on the locked down host can communicate over + ``localhost``. + + * Reserve one or more ports for communication **exclusively** for + proxy communication between Apache and the servlet container. The + servlet container may listen on other ports for non-critical + non-authenticated requests. + + * The ``ClaimAuthFilter`` that reads the identity metadata **must** + assure that requests have arrived only on a **trusted port**. To + achieve this the ``FederationConfiguration`` defines the + ``secureProxyPorts`` configuration option. ``secureProxyPorts`` is + a space delimited list of ports which during deployment the + administrator has configured such that they are **exclusively** + dedicated for use by the Apache server(s) providing authentication + and identity information. These ports are set in the servlet + container's ``Connector`` declarations. See `Declaring the + Connector Ports for Authentication Proxies`_ for more + information). + + * When the ``ClaimAuthFilter`` receives a request, the first thing + it does is check the ``ServletRequest.getLocalPort()`` value and + verifies it is a member of the ``secureProxyPorts`` configuration + option. If the port is a member of ``secureProxyPorts``, it will + trust every identity assertion found in the request. If the local + port is not a member of ``secureProxyPorts``, a HTTP 401 + (unauthorized) error status will be returned for the request. A + warning message will be logged the first time this occurs. + + +Declaring the Connector Ports for Authentication Proxies +-------------------------------------------------------- + +As described in `The Proxy Problem`_ the AAA authentication system +**must** confirm the request it is processing originated from a *trusted +HTTP proxy server*. This is accomplished with port isolation. + +The administrator deploying a federated AAA solution with SSSD +identity lookups must declare in the AAA federation configuration +which ports the proxy requests from the trusted HTTP server will +arrive on by setting the ``secureProxyPorts`` configuration +item. These ports **must** only be used for the trusted HTTP proxy +server. The AAA federation software will not perform authentication +for any request arriving on a port other than those listed in +``secureProxyPorts``. + +.. figure:: sssd_05.png + :align: center + + _`Figure 5.` + +``secureProxyPorts`` configuration option is set either in the +``federation.cfg`` file or in the +``org.opendaylight.aaa.federation.secureProxyPorts`` bundle +configuration. ``secureProxyPorts`` is a space-delimited list of port +numbers on which a trusted HTTP proxy performing authentication +forwards pre-authenticated requests. For example: + +:: + + secureProxyPorts=8383 + +Means a request which arrived on port 8383 is from a trusted HTTP +proxy server and the value of ``REMOTE_USER`` and other authentication +metadata in request can be trusted. + +######## +Appendix +######## + +***************** +CGI Export Issues +***************** + +Apache processes requests as a series of steps in a pipeline +fashion. The ordering of these steps is important. Core Apache is +fairly minimal, most of Apache's features are supplied by loadable +modules. When a module is loaded it registers a set of *hooks* +(function pointers) which are to be run at specific stages in the +Apache request processing pipeline. Thus a module can execute code at +any of a number of stages in the request pipeline. + +The user metadata supplied by Apache is initialized in two distinct +parts of Apache. + + 1. an authentication module (e.g. mod_auth_kerb) + 2. the ``mod_lookup_identity`` module. + +After successful authentication the authentication module will set the +name of the user principal and the mechanism used for authentication +in the request structure. + + * ``request->user`` + * ``request->ap_auth_type`` + +Authentication hooks run early in the request pipeline for the obvious +reason a request should not be processed if not authenticated. The +specific authentication module that runs is defined by ``Location`` +directive in the Apache configuration which binds specific +authentication to specific URL's. The ``mod_lookup_identity`` module +must run *after* authentication module runs because it depends on +knowing who the authenticated principal is so it can lookup the data +on that principal. + +When reading ``mod_lookup_identity`` documentation one often sees +references to the ``REMOTE_USER`` CGI environment variable with the +implication ``REMOTE_USER`` is how one accesses the name of the +authenticated principal. This is a bit misleading, ``REMOTE_USER`` is +a CGI environment variable. CGI environment variables are only set by +Apache when it believes the request is going to be processed by a CGI +implementation. In this case ``REMOTE_USER`` is initialized from the +``request->user`` value. + +How is the authenticated principal actually forwarded to our proxy? +=================================================================== + +If we are using the AJP proxy protocol the ``mod_proxy_ajp`` module +when preparing the proxy request will read the value of +``request->user`` and insert it into the ``SC_A_REMOTE_USER`` AJP +attribute. On the receiving end ``SC_A_REMOTE_USER`` will be extracted +from the AJP request and used to populate the value returned +by``HttpServletRequest.getRemoteUser()``. The exchange of the +authenticated principal when using AJP is transparent to both the +sender and receiver, nothing special needs to be done. See +`Transporting Identity Metadata from Apache to a Java EE Servlet`_ +for details on how metadata can be exchanged with the proxy. + +However, if AJP is not being used to proxy the request the +authenticated principal must be passed through some other mechanism, +an HTTP extension header is the obvious solution. The Apache +``mod_headers`` module can be used to add HTTP request headers to the +proxy request, for example: + +:: + + RequestHeader set MY_HEADER MY_VALUE + +Where does the value MY_VALUE come from? It can be hardcoded into the +``RequestHeader`` statement or it can reference an existing +environment variable like this: + +:: + + RequestHeader set MY_HEADER %{FOOBAR}e + +where the notation ``%{FOOBAR}e`` is the contents of the environment +variable FOOBAR. Thus we might expect we could do this: + +:: + + RequestHeader set REMOTE_USER %{REMOTE_USER}e + +The conundrum is the presumption the ``REMOTE_USER`` environment +variable has already been set at the time ``mod_headers`` executes the +``RequestHeader`` statement. Unfortunately this often is not the +case. + +The Apache environment variables ``REMOTE_USER`` and ``AUTH_TYPE`` are +set by the Apache function ``ap_add_common_vars()`` defined in +server/util_script.c. ``ap_add_common_vars()`` and is called by the +following modules: + + * mod_authnz_fcgi + * mod_proxy_fcgi + * mod_proxy_scgi + * mod_isapi + * mod_ext_filter + * mod_include + * mod_cgi + * mod_cgid + +Apache variables +================ + +Apache modules provide access to variables which can be referenced by +configuration directives. Unfortunately there isn't a lot of +uniformity to what the variables are and how they're referenced; it +mostly depends on how a given Apache module was implemented. As you +might imagine a bit of inconsistent historical cruft has accumulated +over the years, it can be confusing. The Apache Foundation is trying +to clean some of this up bringing uniformity to modules by utilizing +the common ``expr`` (expression) module `ap_expr`_. The idea being modules will +forgo their home grown expression syntax with its numerous quirks and +instead expose the common ``expr`` language. However this is a work in +progress and at the time of this writing only a few modules have acquired +``expr`` expression support. + +Among the existing Apache modules there currently are three different +sets of variables. + + 1. Server variables. + 2. Environment variables. + 3. SSL variables. + +Server variables (item 1) are names given to internal values. The set +of names for server variables and what they map to are defined by the +module implementing the server variable lookup. For example +``mod_rewrite`` has its own variable lookup implementation. + +Environment variables (item 2) are variables *exported* to a +subprocess. Internally they are stored in +``request->subprocess_env``. The most common use of environment +variables exported to a subprocess are the CGI variables. + +SSL variables are connection specific values describing the SSL +connection. The lookup is implemented by ``ssl_var_lookup()``, which +given a variable name looks in a variety of internal data structures to +find the matching value. + +The important thing to remember is **server variables != environment +variables**. This can be confusing because they often share the same +name. For example, there is the server variable ``REMOTE_USER`` and +there is the environment variable ``REMOTE_USER``. The environment +variable ``REMOTE_USER`` only exists if some module has called +``ap_add_common_vars()``. To complicate matters, some modules allow you +to access *server variables*, other modules allow you to access +*environment variables* and some modules provide access to both +*server variables* and *environment variables*. + +Coming back to our goal of setting an HTTP extension header to the +value of ``REMOTE_USER``, we observe that ``mod_headers`` provides the +needed ``RequestHeader`` operation to set a HTTP header in the +request. Looking at the documentation for ``RequestHeader`` we see a +value can be specified with one of the following lookups: + +%{VARNAME}e + The contents of the environment variable VARNAME. + +%{VARNAME}s + The contents of the SSL environment variable VARNAME, if mod_ssl is enabled. + +But wait! This only gives us access to *environment variables* and the +``REMOTE_USER`` environment variable is only set if +``ap_add_common_vars()`` is called by a module **after** an +authentication module runs! ``ap_add_common_vars()`` is usually only +invoked if the request is going to be passed to a CGI script. But +we're not doing CGI; instead we're proxying the request. The +likelihood the ``REMOTE_USER`` environment variable will be set is +quite low. See `Setting the REMOTE_USER environment variable`_. + +``mod_headers`` is the only way to set a HTTP extension header and +``mod_headers`` only gives you access to environment variables and the +``REMOTE_USER`` environment variable is not set. Therefore if we're +not using AJP and must depend on setting a HTTP extension header for +``REMOTE_USER``, we have a **serious problem**. + +But there is a solution; you can either try the machinations described +in `Setting the REMOTE_USER environment variable`_ or assure you're +running at least Apache version 2.4.10. In Apache 2.4.10 the +``mod_headers`` module added support for `ap_expr`_. `ap_expr`_ +provides access to *server variables* by using the ``%{VARIABLE}`` +notation. `ap_expr`_ also can lookup subprocess environment variables +and operating system environment variables using its ``reqenv()`` and +``osenv()`` functions respectively. + +Thus the simple solution for exporting the ``REMOTE_USER`` HTTP +extension header if you're running Apache 2.4.10 or later is: + +:: + + RequestHeader set X-SSSD-REMOTE_USER expr=%{REMOTE_USER} + +The ``expr=%{REMOTE_USER}`` in the above statement says pass +``%{REMOTE_USER}`` as an expression to `ap_expr`_, evaluate the +expression and return the value. In this case the expression +``%{REMOTE_USER}`` is very simple, just the value of the server +variables ``REMOTE_USER``. Because ``RequestHeader`` runs after +authentication ``request->user`` will have been set. + +Setting the REMOTE_USER environment variable +============================================ + +If you do a web search on how to export ``REMOTE_USER`` in a HTTP +extension header for a proxy you will discover this is a common +problem that has frustrated a lot of people [2]_. The usual advice seems to +be to use ``mod_rewrite`` with a look-ahead. In fact this is even +documented in the `mod_rewrite documentation for REMOTE_USER`_ which says: + + %{LA-U:variable} can be used for look-aheads which perform an + internal (URL-based) sub-request to determine the final value of + variable. This can be used to access variable for rewriting which is + not available at the current stage, but will be set in a later + phase. + + For instance, to rewrite according to the REMOTE_USER variable from + within the per-server context (httpd.conf file) you must use + %{LA-U:REMOTE_USER} - this variable is set by the authorization + phases, which come after the URL translation phase (during which + mod_rewrite operates). + +One suggested solution is this: + +:: + + RewriteCond %{LA-U:REMOTE_USER} (.+) + RewriteRule .* - [E=RU:%1] + RequestHeader set X_REMOTE_USER %{RU}e + +1. The RewriteCond with the %{LA-U:} construct performs an internal + redirect to obtain the value of ``REMOTE_USER`` *server variable*, + if that value is non-empty because the (.+) regular expression + matched the rewrite condition succeeds and the following + RewriteRule executes. + +2. The RewriteRule executes, the first parameter is a pattern, the + second parameter is the replacement which can be followed by + optional flags inside brackets. The .* pattern is a regular + expression that matches anything, the - replacement is a special + value which indicates no replacement is to be performed. In other + words the pattern and replacement are no-ops and the RewriteRule is + just being used for it's side effect defined in the flags. The + E=NAME:VALUE notation says set the NAME environment variable to + VALUE. In this case the environment variable is RU and the value is + %1. The documentation for RewriteRule tells us that %N are + back-references to the last matched RewriteCond pattern, in this + case it's the value of ``REMOTE_USER``. + +3. Finally ``RequestHeader`` sets the request header + ``X_REMOTE_USER`` to the value of the ``RU`` environment variable. + +Another suggested solution is this: + +:: + + RewriteRule .* - [E=REMOTE_USER:%{LA-U:REMOTE_USER}] + +The Problem with mod_rewrite lookahead +-------------------------------------- + +I **do not recommend** using mod_rewrite's lookahead to gain access to +authentication data values. Although the above suggestions will work +to get access to ``REMOTE_USER`` it is *extremely inefficient* because +it causes Apache to reprocess the request with an internal +redirect. The documentation suggests a lookahead reference will cause +one internal redirect. However from examining Apache debug logs the +``mod_rewite`` lookahead caused ``mod_lookup_identity`` to be invoked +**11 times** while handling one request. If the ``mod_rewrite`` +lookahead is removed and another technique is used to get access to +``REMOTE_USER`` then ``mod_lookup_identity`` is invoked exactly once +as expected. + +But it's not just ``REMOTE_USER`` which we need access to, we also need +to reference ``AUTH_TYPE`` which has the identical issues associated +with ``REMOTE_USER``. If an equivalent ``mod_rewrite`` block is added +to the configuration for ``AUTH_TYPE`` so that both ``REMOTE_USER`` +and ``auth_type`` are resolved using a lookahead Apache appears to go +into an infinite loop and the request stalls. + +I tried to debug what was occurring when Apache was configured this way +and why it seemed to be executing the same code over and over but I +was not able to figure it out. My conclusion is **using mod_rewrite +lookahead's is not a viable solution!** Other web posts also make +reference to the inefficiency but they seem to be unaware of just how +bad it is. + +.. [1] + Tomcat has a bug/feature, not all attributes are enumerated by + getAttributeNames() therefore getAttributeNames() cannot be used to + obtain the full set of attributes. However if you know the name of + the attribute a priori you can call getAttribute() and obtain the + value. Therefore we maintain a list of attribute names + (httpAttributes) which will be used to call getAttribute() with so we + don't miss essential attributes. + + This is the Tomcat bug, note it is marked WONTFIX. Bug 25363 - + request.getAttributeNames() not working properly Status: RESOLVED + WONTFIX https://issues.apache.org/bugzilla/show_bug.cgi?id=25363 + + The solution adopted by Tomcat is to document the behavior in the + "The Apache Tomcat Connector - Reference Guide" under the JkEnvVar + property where is says: + + You can retrieve the variables on Tomcat as request attributes via + request.getAttribute(attributeName). Note that the variables send via + JkEnvVar will not be listed in request.getAttributeNames(). + +.. [2] + Some examples of posts concerning the export of ``REMOTE_USER`` include: + http://www.jaddog.org/2010/03/22/how-to-proxy-pass-remote_user/ and + http://serverfault.com/questions/23273/apache-proxy-passing-on-remote-user-to-backend-server/ + +.. [3] + The ``mod_lookup_identity`` ``LookupUserGroups`` option accepts an + optional parameter to specify the separator used to separate group + names. By convention this is normally the colon (:) character. In + our examples we explicitly specify the colon separator because the + mapping rules split the value found in ``REMOTE_USER_GROUPS`` on + the colon character. + +.. [4] + The example of using the `The Mapping Rule Processor`_ to establish + the set of roles assigned to a user based on group membership is + for illustrative purposes in order to show features of the + federated IdP and mapping mechanism. Role assignment in AAA may be + done in other ways. For example an unscoped token without roles can + be used to acquire a scoped token with roles by presenting it to + the appropriate REST API endpoint. In actual deployments this may + be preferable because it places the responsibility of deciding who + has what role/permission on what part of the controller/network + resources more in the hands of the SDN controller administrator + than the IdP administrator. + +.. _FreeIPA: http://www.freeipa.org/ + +.. _SSSD: https://fedorahosted.org/sssd/ + +.. _mod_identity_lookup: http://www.adelton.com/apache/mod_lookup_identity/ + +.. _AJP: http://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html + +.. _Tomcat Security How-To: http://tomcat.apache.org/tomcat-7.0-doc/security-howto.html + +.. _The Apache Tomcat Connector - Generic HowTo: http://tomcat.apache.org/connectors-doc/generic_howto/printer/proxy.html + +.. _CGI RFC: http://www.ietf.org/rfc/rfc3875 + +.. _ap_expr: http://httpd.apache.org/docs/current/expr.html + +.. _mod_rewrite documentation for REMOTE_USER: http://httpd.apache.org/docs/current/mod/mod_rewrite.html#rewritecond + +.. _bug 53098: https://issues.apache.org/bugzilla/show_bug.cgi?id=53098 + +.. _Jetty AJP Configuration Guide: http://wiki.eclipse.org/Jetty/Howto/Configure_AJP13 + +.. _Bug 387928: https://bugs.eclipse.org/bugs/show_bug.cgi?id=387928 + +.. _Tomcat Remote Address Valve: http://tomcat.apache.org/tomcat-7.0-doc/config/valve.html#Remote_Address_Filter diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Authentication.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Authentication.java new file mode 100644 index 00000000..25ba898b --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Authentication.java @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * An immutable authentication context. + * + * @author liemmn + */ +public interface Authentication extends Claim { + + /** + * Get the authentication expiration date/time in number of milliseconds + * since start of epoch. + * + * @return expiration milliseconds since start of UTC epoch + */ + long expiration(); + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationException.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationException.java new file mode 100644 index 00000000..d4621527 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationException.java @@ -0,0 +1,31 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * A catch-all authentication exception. + * + * @author liemmn + * + */ +public class AuthenticationException extends RuntimeException { + private static final long serialVersionUID = -187422301135305719L; + + public AuthenticationException(String msg) { + super(msg); + } + + public AuthenticationException(String msg, Throwable cause) { + super(msg, cause); + } + + public AuthenticationException(Throwable cause) { + super(cause); + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationService.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationService.java new file mode 100644 index 00000000..24ae9238 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/AuthenticationService.java @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * Authentication service to provide authentication context. + */ +public interface AuthenticationService { + /** + * Retrieve the current security context, or null if none exists. + * + * @return security context + */ + Authentication get(); + + /** + * Set the current security context. Only {@link TokenAuth} should set + * security context based on the authentication result. + * + * @param auth + * security context + */ + void set(Authentication auth); + + /** + * Clear the current security context. + */ + void clear(); + + /** + * Checks to see if authentication is enabled. + * + * @return true if it is, false otherwise + */ + boolean isAuthEnabled(); +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Claim.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Claim.java new file mode 100644 index 00000000..7d9a229a --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Claim.java @@ -0,0 +1,56 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +import java.util.Set; + +/** + * A claim typically provided by an identity provider after validating the + * needed identity and credentials. + * + * @author liemmn + * + */ +public interface Claim { + /** + * Get the id of the authorized client. If the id is an empty string, it + * means that the client is anonymous. + * + * @return id of the authorized client, or empty string if anonymous + */ + String clientId(); + + /** + * Get the user id. User IDs are system-created. + * + * @return unique user id + */ + String userId(); + + /** + * Get the user name. User names are externally created. + * + * @return unique user name + */ + String user(); + + /** + * Get the fully-qualified domain name. Domain names are externally created. + * + * @return unique domain name, or empty string for a claim tied to no domain + */ + String domain(); + + /** + * Get a set of user roles. Roles are externally created. + * + * @return set of user roles + */ + Set<String> roles(); +}
\ No newline at end of file diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClaimAuth.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClaimAuth.java new file mode 100644 index 00000000..447ffb35 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClaimAuth.java @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +import java.util.Map; + +/** + * An interface for in-bound claim transformation. + * + * @author liemmn + * + */ +public interface ClaimAuth { + + /** + * Transform a map of opaque in-bound claims into a {@link Claim} object. An + * example of an opaque claim map entry is + * <code>"USER_NAME" -> "joe".</code> + * <p> + * If there is no applicable claim information for the current + * implementation, this method should return a <code>null</code>. + * <p> + * In-bound claims are extracted from HttpServletRequest attributes, + * headers, and CGI variables as documented per Servlet specs. + * + * @param claim + * opaque claim + * @return normalized claim, or null if not applicable + */ + Claim transform(Map<String, Object> claim); +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClientService.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClientService.java new file mode 100644 index 00000000..c11eec1c --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/ClientService.java @@ -0,0 +1,20 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * A service for managing authorized clients to the controller. + * + * @author liemmn + * + */ +public interface ClientService { + + void validate(String clientId, String clientSecret) throws AuthenticationException; +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/CredentialAuth.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/CredentialAuth.java new file mode 100644 index 00000000..341e49ae --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/CredentialAuth.java @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * An interface for direct authentication with some given credentials. + * + * @author liemmn + */ +public interface CredentialAuth<T extends Credentials> { + + /** + * Authenticate a claim with the given credentials and domain scope. + * + * @param cred + * credentials + * @throws AuthenticationException + * if failed authentication + * @return authenticated claim + */ + Claim authenticate(T cred) throws AuthenticationException; +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Credentials.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Credentials.java new file mode 100644 index 00000000..7d2f19e5 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/Credentials.java @@ -0,0 +1,15 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * An interface to represent user credentials. + */ +public interface Credentials { +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IDMStoreException.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IDMStoreException.java new file mode 100644 index 00000000..026c11ce --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IDMStoreException.java @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ +package org.opendaylight.aaa.api; + +/* + * @author - Sharon Aicler (saichler@cisco.com) + */ +public class IDMStoreException extends Exception { + + private static final long serialVersionUID = -7534127680943957878L; + + public IDMStoreException(Exception e) { + super(e); + } + + public IDMStoreException(String msg) { + super(msg); + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IDMStoreUtil.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IDMStoreUtil.java new file mode 100644 index 00000000..07dd522f --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IDMStoreUtil.java @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ +package org.opendaylight.aaa.api; + +import javax.naming.OperationNotSupportedException; + +/* + * This class is a utility to construct the different elements keys for the different data stores. + * For not making mistakes around the code constructing an element key, this class standardize the + * way the key is constructed to be used by the different data stores. + * + * @author - Sharon Aicler (saichler@cisco.com) + */ + +public class IDMStoreUtil { + private IDMStoreUtil() throws OperationNotSupportedException { + throw new OperationNotSupportedException(); + } + + public static String createDomainid(String domainName) { + return domainName; + } + + public static String createUserid(String username, String domainid) { + return username + "@" + domainid; + } + + public static String createRoleid(String rolename, String domainid) { + return rolename + "@" + domainid; + } + + public static String createGrantid(String userid, String domainid, String roleid) { + return userid + "@" + roleid + "@" + domainid; + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IIDMStore.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IIDMStore.java new file mode 100644 index 00000000..7b031e05 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IIDMStore.java @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ +package org.opendaylight.aaa.api; + +import org.opendaylight.aaa.api.model.Domain; +import org.opendaylight.aaa.api.model.Domains; +import org.opendaylight.aaa.api.model.Grant; +import org.opendaylight.aaa.api.model.Grants; +import org.opendaylight.aaa.api.model.Role; +import org.opendaylight.aaa.api.model.Roles; +import org.opendaylight.aaa.api.model.User; +import org.opendaylight.aaa.api.model.Users; + +/** + * @author - Sharon Aicler (saichler@cisco.com) + **/ +public interface IIDMStore { + public String DEFAULT_DOMAIN = "sdn"; + + // Domain methods + public Domain writeDomain(Domain domain) throws IDMStoreException; + + public Domain readDomain(String domainid) throws IDMStoreException; + + public Domain deleteDomain(String domainid) throws IDMStoreException; + + public Domain updateDomain(Domain domain) throws IDMStoreException; + + public Domains getDomains() throws IDMStoreException; + + // Role methods + public Role writeRole(Role role) throws IDMStoreException; + + public Role readRole(String roleid) throws IDMStoreException; + + public Role deleteRole(String roleid) throws IDMStoreException; + + public Role updateRole(Role role) throws IDMStoreException; + + public Roles getRoles() throws IDMStoreException; + + // User methods + public User writeUser(User user) throws IDMStoreException; + + public User readUser(String userid) throws IDMStoreException; + + public User deleteUser(String userid) throws IDMStoreException; + + public User updateUser(User user) throws IDMStoreException; + + public Users getUsers() throws IDMStoreException; + + public Users getUsers(String username, String domain) throws IDMStoreException; + + // Grant methods + public Grant writeGrant(Grant grant) throws IDMStoreException; + + public Grant readGrant(String grantid) throws IDMStoreException; + + public Grant deleteGrant(String grantid) throws IDMStoreException; + + public Grants getGrants(String domainid, String userid) throws IDMStoreException; + + public Grants getGrants(String userid) throws IDMStoreException; + + public Grant readGrant(String domainid, String userid, String roleid) throws IDMStoreException; +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IdMService.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IdMService.java new file mode 100644 index 00000000..1d698da5 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/IdMService.java @@ -0,0 +1,39 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +import java.util.List; + +/** + * A service to provide identity information. + * + * @author liemmn + * + */ +public interface IdMService { + /** + * List all domains that the given user has at least one role on. + * + * @param userId + * id of user + * @return list of all domains that the given user has access to + */ + List<String> listDomains(String userId); + + /** + * List all roles that the given user has on the given domain. + * + * @param userId + * id of user + * @param domain + * domain + * @return list of roles + */ + List<String> listRoles(String userId, String domain); +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/PasswordCredentials.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/PasswordCredentials.java new file mode 100644 index 00000000..e5fa346d --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/PasswordCredentials.java @@ -0,0 +1,20 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * Good 'ole username/password. + */ +public interface PasswordCredentials extends Credentials { + String username(); + + String password(); + + String domain(); +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/SHA256Calculator.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/SHA256Calculator.java new file mode 100644 index 00000000..903fe3de --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/SHA256Calculator.java @@ -0,0 +1,74 @@ +/* + * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ +package org.opendaylight.aaa.api; + +import java.security.MessageDigest; +import java.util.concurrent.locks.ReentrantReadWriteLock; +import java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock; +import javax.xml.bind.DatatypeConverter; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * @author Sharon Aicler (saichler@cisco.com) + */ +public class SHA256Calculator { + + private static final Logger LOG = LoggerFactory.getLogger(SHA256Calculator.class); + + private static MessageDigest md = null; + private static ReentrantReadWriteLock lock = new ReentrantReadWriteLock(); + private static WriteLock writeLock = lock.writeLock(); + + public static String generateSALT() { + StringBuffer salt = new StringBuffer(); + for (int i = 0; i < 12; i++) { + int random = (int) (Math.random() * 24 + 1); + salt.append((char) (65 + random)); + } + return salt.toString(); + } + + public static String getSHA256(byte data[], String salt) { + byte SALT[] = salt.getBytes(); + byte temp[] = new byte[data.length + SALT.length]; + System.arraycopy(data, 0, temp, 0, data.length); + System.arraycopy(SALT, 0, temp, data.length, SALT.length); + + if (md == null) { + try { + writeLock.lock(); + if (md == null) { + try { + md = MessageDigest.getInstance("SHA-256"); + } catch (Exception err) { + LOG.error("Error calculating SHA-256 for SALT", err); + } + } + } finally { + writeLock.unlock(); + } + } + + byte by[] = null; + + try { + writeLock.lock(); + md.update(temp); + by = md.digest(); + } finally { + writeLock.unlock(); + } + //Make sure the outcome hash does not contain special characters + return DatatypeConverter.printBase64Binary(by); + } + + public static String getSHA256(String password, String salt) { + return getSHA256(password.getBytes(), salt); + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenAuth.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenAuth.java new file mode 100644 index 00000000..bbf6fa2b --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenAuth.java @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +import java.util.List; +import java.util.Map; + +/** + * An interface for in-bound token authentication. + * + * @author liemmn + */ +public interface TokenAuth { + + /** + * Validate the given token contained in the in-bound headers. + * <p> + * If there is no token signature in the given headers for this + * implementation, this method should return a null. If there is an + * applicable token signature, but the token validation fails, this method + * should throw an {@link AuthenticationException}. + * + * @param headers + * headers containing token to validate + * @return authenticated context, or null if not applicable + * @throws AuthenticationException + * if authentication fails + */ + Authentication validate(Map<String, List<String>> headers) throws AuthenticationException; + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenStore.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenStore.java new file mode 100644 index 00000000..4cd7aa78 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/TokenStore.java @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2014 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api; + +/** + * A datastore for auth tokens. + * + * @author liemmn + * + */ +public interface TokenStore { + void put(String token, Authentication auth); + + Authentication get(String token); + + boolean delete(String token); + + long tokenExpiration(); +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Claim.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Claim.java new file mode 100644 index 00000000..180bddfb --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Claim.java @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import java.util.List; + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "Claim") +public class Claim { + private String domainid; + private String userid; + private String username; + private List<Role> roles; + + public String getDomainid() { + return domainid; + } + + public void setDomainid(String id) { + this.domainid = id; + } + + public String getUserid() { + return userid; + } + + public void setUserid(String id) { + this.userid = id; + } + + public String getUsername() { + return username; + } + + public void setUsername(String name) { + this.username = name; + } + + public List<Role> getRoles() { + return roles; + } + + public void setRoles(List<Role> roles) { + this.roles = roles; + } + +}
\ No newline at end of file diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Domain.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Domain.java new file mode 100644 index 00000000..a42e0b6d --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Domain.java @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "domain") +public class Domain { + private String domainid; + private String name; + private String description; + private Boolean enabled; + + public String getDomainid() { + return domainid; + } + + public void setDomainid(String id) { + this.domainid = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getDescription() { + return description; + } + + public void setDescription(String description) { + this.description = description; + } + + public Boolean isEnabled() { + return enabled; + } + + public void setEnabled(Boolean enabled) { + this.enabled = enabled; + } + + @Override + public int hashCode() { + return this.name.hashCode(); + } + + @Override + public boolean equals(Object obj) { + Domain other = (Domain) obj; + if (other == null) + return false; + if (compareValues(getName(), other.getName()) + && compareValues(getDomainid(), other.getDomainid()) + && compareValues(getDescription(), other.getDescription())) + return true; + return false; + } + + private boolean compareValues(Object a, Object b) { + if (a == null && b != null) + return false; + if (a != null && b == null) + return false; + if (a == null && b == null) + return true; + if (a.equals(b)) + return true; + return false; + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Domains.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Domains.java new file mode 100644 index 00000000..a8f2064b --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Domains.java @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import java.util.ArrayList; +import java.util.List; + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "domains") +public class Domains { + private List<Domain> domains = new ArrayList<Domain>(); + + public void setDomains(List<Domain> domains) { + this.domains = domains; + } + + public List<Domain> getDomains() { + return domains; + } + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Grant.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Grant.java new file mode 100644 index 00000000..20c2d128 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Grant.java @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "grant") +public class Grant { + private String grantid; + private String domainid; + private String userid; + private String roleid; + + public String getGrantid() { + return this.grantid; + } + + public void setGrantid(String id) { + this.grantid = id; + } + + public String getDomainid() { + return domainid; + } + + public void setDomainid(String id) { + this.domainid = id; + } + + public String getUserid() { + return userid; + } + + public void setUserid(String id) { + this.userid = id; + } + + public String getRoleid() { + return roleid; + } + + public void setRoleid(String id) { + this.roleid = id; + } + + @Override + public int hashCode() { + return this.getUserid().hashCode(); + } + + @Override + public boolean equals(Object obj) { + Grant other = (Grant) obj; + if (other == null) + return false; + if (compareValues(getDomainid(), other.getDomainid()) + && compareValues(getRoleid(), other.getRoleid()) + && compareValues(getUserid(), other.getUserid())) + return true; + return false; + } + + private boolean compareValues(Object a, Object b) { + if (a == null && b != null) + return false; + if (a != null && b == null) + return false; + if (a == null && b == null) + return true; + if (a.equals(b)) + return true; + return false; + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Grants.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Grants.java new file mode 100644 index 00000000..ce0d9b85 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Grants.java @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + + +import java.util.ArrayList; +import java.util.List; + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "grants") +public class Grants { + private List<Grant> grants = new ArrayList<Grant>(); + + public void setGrants(List<Grant> grants) { + this.grants = grants; + } + + public List<Grant> getGrants() { + return grants; + } + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/IDMError.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/IDMError.java new file mode 100644 index 00000000..f44c43d9 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/IDMError.java @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.ws.rs.core.Response; +import javax.xml.bind.annotation.XmlRootElement; + +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +@XmlRootElement(name = "idmerror") +public class IDMError { + private static final Logger LOG = LoggerFactory.getLogger(IDMError.class); + + private String message; + private String details; + private int code = 500; + + public IDMError() { + }; + + public IDMError(int statusCode, String msg, String msgDetails) { + code = statusCode; + message = msg; + details = msgDetails; + } + + public String getMessage() { + return message; + } + + public void setMessage(String msg) { + this.message = msg; + } + + public String getDetails() { + return details; + } + + public void setDetails(String details) { + this.details = details; + } + + public Response response() { + LOG.error("error: {} details: {} status: {}", this.message, this.details, code); + return Response.status(this.code).entity(this).build(); + } + +}
\ No newline at end of file diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Role.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Role.java new file mode 100644 index 00000000..de707496 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Role.java @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "role") +public class Role { + private String roleid; + private String name; + private String description; + private String domainid; + + public String getRoleid() { + return roleid; + } + + public void setRoleid(String id) { + this.roleid = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getDescription() { + return description; + } + + public void setDescription(String description) { + this.description = description; + } + + @Override + public int hashCode() { + return this.name.hashCode(); + } + + @Override + public boolean equals(Object obj) { + Role other = (Role) obj; + if (other == null) + return false; + if (compareValues(getName(), other.getName()) + && compareValues(getRoleid(), other.getRoleid()) + && compareValues(getDescription(), other.getDescription())) + return true; + return false; + } + + public void setDomainid(String domainid) { + this.domainid = domainid; + } + + public String getDomainid() { + return this.domainid; + } + + private boolean compareValues(Object a, Object b) { + if (a == null && b != null) + return false; + if (a != null && b == null) + return false; + if (a == null && b == null) + return true; + if (a.equals(b)) + return true; + return false; + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Roles.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Roles.java new file mode 100644 index 00000000..33521028 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Roles.java @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import java.util.ArrayList; +import java.util.List; + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "roles") +public class Roles { + private List<Role> roles = new ArrayList<Role>(); + + public void setRoles(List<Role> roles) { + this.roles = roles; + } + + public List<Role> getRoles() { + return roles; + } + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/User.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/User.java new file mode 100644 index 00000000..c6c1f9a6 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/User.java @@ -0,0 +1,126 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "user") +public class User { + private String userid; + private String name; + private String description; + private Boolean enabled; + private String email; + private String password; + private String salt; + private String domainid; + + public String getUserid() { + return userid; + } + + public void setUserid(String id) { + this.userid = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getDescription() { + return description; + } + + public void setDescription(String description) { + this.description = description; + } + + public Boolean isEnabled() { + return enabled; + } + + public void setEnabled(Boolean enabled) { + this.enabled = enabled; + } + + public void setEmail(String email) { + this.email = email; + } + + public String getEmail() { + return email; + } + + public void setPassword(String password) { + this.password = password; + } + + public String getPassword() { + return password; + } + + public void setSalt(String s) { + this.salt = s; + } + + public String getSalt() { + return this.salt; + } + + public String getDomainid() { + return domainid; + } + + public void setDomainid(String domainid) { + this.domainid = domainid; + } + + @Override + public int hashCode() { + return this.name.hashCode(); + } + + @Override + public boolean equals(Object obj) { + User other = (User) obj; + if (other == null) + return false; + if (compareValues(getName(), other.getName()) + && compareValues(getEmail(), other.getEmail()) + && compareValues(isEnabled(), other.isEnabled()) + && compareValues(getPassword(), other.getPassword()) + && compareValues(getSalt(), other.getSalt()) + && compareValues(getUserid(), other.getUserid()) + && compareValues(getDescription(), other.getDescription())) + return true; + return false; + } + + private boolean compareValues(Object a, Object b) { + if (a == null && b != null) + return false; + if (a != null && b == null) + return false; + if (a == null && b == null) + return true; + if (a.equals(b)) + return true; + return false; + } +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/UserPwd.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/UserPwd.java new file mode 100644 index 00000000..4750616d --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/UserPwd.java @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "userpwd") +public class UserPwd { + private String username; + private String userpwd; + + public String getUsername() { + return username; + } + + public void setUsername(String name) { + this.username = name; + } + + public String getUserpwd() { + return userpwd; + } + + public void setUserpwd(String pwd) { + this.userpwd = pwd; + } + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Users.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Users.java new file mode 100644 index 00000000..a0a001bd --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Users.java @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import java.util.ArrayList; +import java.util.List; + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "users") +public class Users { + private List<User> users = new ArrayList<User>(); + + public void setUsers(List<User> users) { + this.users = users; + } + + public List<User> getUsers() { + return users; + } + +} diff --git a/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Version.java b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Version.java new file mode 100644 index 00000000..a88c1f80 --- /dev/null +++ b/odl-aaa-moon/aaa/aaa-authn-api/src/main/java/org/opendaylight/aaa/api/model/Version.java @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2014, 2015 Hewlett-Packard Development Company, L.P. and others. All rights reserved. + * + * This program and the accompanying materials are made available under the + * terms of the Eclipse Public License v1.0 which accompanies this distribution, + * and is available at http://www.eclipse.org/legal/epl-v10.html + */ + +package org.opendaylight.aaa.api.model; + +/** + * + * @author peter.mellquist@hp.com + * + */ + +import javax.xml.bind.annotation.XmlRootElement; + +@XmlRootElement(name = "version") +public class Version { + private String id; + private String updated; + private String status; + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + public String getUpdated() { + return updated; + } + + public void setUpdated(String name) { + this.updated = name; + } + + public String getStatus() { + return status; + } + + public void setStatus(String status) { + this.status = status; + } + +} |
