Systems and methods for processing SIP message flows
View Patent ↗Systems, methods, and computer program products are provided for modifying a Session Initiation Protocol (SIP) messages. The method includes providing a scripting-type computer programming language that includes contexts that reference pre-defined portions of data of a SIP message and variables that store data associated with a SIP message flow. An interface for configuring rules to be executed when processing SIP messages is provided. Each rule includes an action that describes a modification to be made to a particular SIP message. When a SIP message is received, it is parsed to determine at least a context of a portion of the message. The parsing includes associating the portion of the message with a particular context. It is then determined whether a rule should be applied to the data associated referenced by the contexts, and if so, the SIP message is modified based on the actions associated with the rule.
1. A computer-implemented method for modifying a Session Initiation Protocol (SIP) message included in a series of SIP messages associated with a SIP message flow comprising:
providing a scripting-type computer programming language with contexts that reference pre-defined portions of data of a SIP message and variables for storing data associated with a particular SIP message flow;
providing an interface for configuring one or more rules of an ingress profile and one or more rules of an egress profile by the scripting language, wherein the one or more rules of the ingress profile are different than the one or more rules of the egress profile, wherein the one or more rules of the ingress profile and one or more rules of the egress profile are executed when processing one or more SIP messages in the SIP message flow, and wherein each of the one or more rules of the ingress profile and one or more rules of the egress profile includes at least one action, the action describing a modification to be made to a particular SIP message in the SIP message flow;
receiving, by at least one or more processors, a particular SIP message included in the series of SIP messages;
parsing the particular SIP message to determine one or more contexts corresponding to one or more particular portions of the particular SIP message, the parsing including associating a particular portion of the particular SIP message with a particular pre-defined context;
determining whether criteria associated with each rule applies to at least the data referenced by one of the contexts; and
in response to determining that data referenced by a particular context meets the criteria associated with a particular rule, saving data from the particular SIP message to a variable associated with a memory location based on the one or more actions associated with the particular rule; and
modifying a subsequent SIP message based on the data from the particular SIP message in the memory location.
2. The computer-implemented method of claim 1 , wherein a particular rule includes at least one trigger, wherein one or more actions associated with the rule are processed when a particular SIP message meets a criterion that satisfies the trigger.
3. The computer-implemented method of claim 1 , wherein a particular rule includes at least one trigger, wherein one or more actions associated with the rule are processed when a particular variable meets a criterion that satisfies the trigger.
4. The computer-implemented method of claim 1 , wherein modifying the particular SIP message includes modifying a portion of the SIP message based on a trigger associated with the action's rule.
5. The computer-implemented method of claim 1 , wherein one or more rules of the ingress profile and the one or more rules of the egress profile are associated with a scope of processing SIP messages where the one or more rules of the ingress profile and the one or more rules of the egress profile are to be processed.
6. The computer-implemented method of claim 5 , wherein the ingress profile or the egress profile is associated with a particular scope including a system processing level, a realm processing level, a group processing level, or an endpoint processing level.
7. The computer-implemented method of claim 6 , wherein the ingress profile is further associated with a scope including a SIP message ingress point of a particular processing level.
8. The computer-implemented method of claim 5 , wherein the egress profile is further associated with a scope including a SIP message egress point of a particular processing level.
9. The computer-implemented method of claim 1 , wherein a particular rule includes a trigger that is required to be satisfied in order to execute the particular rule's associated actions, and wherein satisfying the trigger depends on a portion of data includes in a SIP message and is selected from a SIP request line, a SIP status line, a SIP header, a SIP generic-body, or a SIP message body headers.
10. A computer system for modifying a Session Initiation Protocol (SIP) message included in a SIP message flow comprising:
a processor; and
a memory comprising machine readable instructions that when executed by the processor, cause the system to:
provide a scripting-type computer programming language with contexts that reference pre-defined portions of data of a SIP message and variables for storing data associated with a particular SIP message flow;
provide a user interface for configuring one or more rules of an ingress profile and one or more rules of an egress profile by the scripting language, wherein the one or more rules of the ingress profile are different than the one or more rules of the egress profile, wherein the one or more rules of the ingress profile and one or more rules of the egress profile are executed when processing one or more SIP messages in the SIP message flow, and wherein each of the one or more rules of the ingress profile and one or more rules of the egress profile includes at least one action, the action describing a modification to be made to a particular SIP message in the SIP message flow;
receive a particular SIP message included in the series of SIP messages;
parse the particular SIP message to determine one or more contexts corresponding to one or more particular portions of the particular SIP message, the parsing including associating a particular portion of the particular SIP message with a particular pre-defined context;
determine whether criteria associated with each rule applies to at least the data referenced by one of the contexts;
in response to determining that data referenced by a particular context meets the criteria associated with a particular rule, save data from the particular SIP message to a variable associated with a memory location based on the one or more actions associated with the particular rule; and
modifying a subsequent SIP message based on the data from the particular SIP message in the memory location.
11. The computer system of claim 10 , wherein a particular rule includes at least one trigger, and wherein one or more actions associated with the rule are processed when a particular SIP message meets a criterion that satisfies the trigger.
12. The computer system of claim 10 , wherein a particular rule includes at least one trigger, and wherein one or more actions associated with the rule are processed when a particular variable meets a criterion that satisfies the trigger.
13. The computer system of claim 10 , wherein the rule processor is further configured to modify a portion of the SIP message based on a trigger associated with the action's rule.
14. The computer system of claim 10 , wherein one or more rules of the ingress profile and the one or more rules of the egress profile are associated with a scope of processing SIP messages where the one or more rules of the ingress profile and the one or more rules of the egress profile are to be processed.
15. The computer system of claim 14 , wherein the ingress profile or egress profile is associated with a particular scope including a system processing level, a realm processing level, a group processing level, or an endpoint processing level.
16. The computer system of claim 15 , wherein the ingress profile is further associated with a scope including a SIP message ingress point of a particular processing level.
17. The computer system of claim 14 , wherein the egress profile is further associated with a scope including a SIP message egress point of a particular processing level.
18. The computer system of claim 10 , wherein a particular rule includes a trigger that is required to be satisfied in order to execute the particular rule's associated actions, and wherein satisfying the trigger depends on a portion of data includes in a SIP message and is selected from a SIP request line, a SIP status line, a SIP header, a SIP generic-body, or a SIP message body headers.
19. A session border controller for modifying a Session Initiation Protocol (SIP) message included in a SIP message flow comprising:
a processor; and
a memory comprising machine readable instructions that when executed by the processor, cause the system to:
provide a scripting-type computer programming language, the scripting language including contexts that are configured to reference pre-defined portions of data of a SIP message and variables that are configured to store data based on processing a SIP message flow;
provide a user interface for configuring one or more rules of an ingress profile and one or more rules of an egress profile, by the scripting language, wherein the one or more rules of the ingress profile are different than the one or more rules of the egress profile, wherein the one or more rules of the egress profile and one or more rules of the egress profile include at least one trigger that determines the SIP messages the one or more rules of the egress profile and one or more rules of the egress profile is applied to, and at least one action that describes how to process the SIP message; and
store rules entered by a user in a rule database such that the rules are retrieved and applied to SIP messages as the SIP messages are processed by the session boarder controller;
receive a particular SIP message included in the SIP message flow;
parse the particular SIP message to determine one or more contexts that each correspond pre-defined portions of the particular SIP message;
determine whether the trigger associated with a particular rule applies to the particular SIP message, wherein the determining is based on comparing the trigger to at least one context referencing the particular SIP message; and
in response to determining that data referenced by a particular context meets the trigger associated with the particular rule, save data from the particular SIP message to a variable associated with a memory location based on one or more actions associated with the particular rule; and
modifying a subsequent SIP message based on the data from the particular SIP message in the memory location.
20. The session border controller of claim 19 , wherein the rule processor is further configured to modify one or more variables associated with the SIP message flow based on actions associated with the particular rule.