30 results about "Rewrite engine" patented technology

A URL re-writing system and method in a network examines and modifies HTML data and its embedded URLs. The re-writing system can be implemented in a router and can replace URLs found in the HTML data in order to accomplish more efficient routing for example to a close mirror site or for content routing. The re-writing system can also use URL replacement to insert important or emergency information to data received by users on a Web-based network.

The invention discloses a method and equipment for realizing load balance continuity. The load balancing equipment solves the URL link information contained in a message to generate continuity table entries through which the continuity of the load balance is realized. Through the technical scheme, the invention provides a method based on URL information interception for realizing continuity for the load balancing equipment. The method is suitable for the application situation in which the real server rewrites by using URL to realize HTTP conversation persistence, can improve the processing capability of the load balancing equipment and is not affected by that whether the client turns on the Cookie function or not.

A method of providing a semantic data architecture includes providing a data model layer. The data model layer is formed by a processor, a storage device, a memory, and a communication interface in combination with a data model application program stored in the storage device. The processor, running the data model application program, is configured to use the storage device, memory, and communication interface to selectively receive source data from a source device, process the corresponding source data based on pre-defined data types and filtering terms to form semantic data arranged in a binary tree structure, and store the semantic data in the storage device. The method also includes providing a data filtering layer. The method may also include providing memory model, general purpose parser, backward inference, primitive functions, rewriting engine, and reasoning engine layers in various combinations. An apparatus for providing a semantic data architecture is also provided.

The invention pertains to the field of middleware technical architecture, in particular to the field of the technical architecture of a workflow engine, which is the workflow engine with the ability to simultaneously support artificial flow and automatic flow, comprising a client, an agent layer, an authority verification layer, a process logic treatment layer and a persistence layer, the workflow engine is characterized in that: the structure of the persistence layer is expanded, a memory persistence layer which is separated with a database persistence layer is arranged in the persistence layer, thus carrying out the persistence of the automatic flow information determined in the process logic layer; secondly, the process logic treatment layer is expanded, a rewriting engine part interface is expanded in the process logic layer, the storage mode adopted by the current process is determined by analyzing the process definition; finally, the algorithm for embedding the automatic flow into the artificial flow is complied, thus improving the operation efficiency of embedding the automatic flow into the artificial flow. The workflow engine well solves the problem that the current workflow engine can not simultaneously support the artificial flow and the automatic flow well.

A two-dimensional bar code electronic station board implementing method includes the steps: 1, generating a two-dimensional bar code of an electronic station board; 2, making the generated two-dimensional bar code into a two-dimensional bar code electronic station board by combining related information of a station; 3, allowing a cell phone client to scan the two-dimensional bar code of the electronic station board through conventional two-dimensional bar code canning software such as WeChat and Quickpai to obtain a referring address, and invoking a system default browser to access to the web address; 4, after a server receives a request, performing URL (universal serial bus) rewriting and recognition to obtain a real URL address, and leading to a real station board web address corresponding to a bus WAP (wireless application protocol) information query platform; 5, displaying information data such as all arrival information and current positions of passing routes on the station through the bus WAP information query platform.

IP packet from client end is received by synthesized gateway. If target address of IP packet is IP address of synthesized gateway and local application program or service processor occupies target port, then the local application program or service processor processes the IP packet directly. If target address of IP packet is different from IP address of synthesized gateway, then rule check is carried out and processed based on different situation. Service processor receives data packet and processes the data packet. Final step is to generate charging call ticket. Low layer protocol in TCP/IP protocol is adopted in the invention so as to reduce overhead for unpacking and repacking. The invention is not restricted by HTTP protocol so as to prevent defects caused by rewriting URL and Cookie. Features are favorable stability, security stability and expansibility.

Embodiments of the apparatus for modifying packet headers relate to a rewrite engine that represents each protocol header of packets in a generic format specific to that protocol to enable programmable modifications of packets, resulting in hardware and software flexibility in modifying packet headers. Software programs generic formats in a hardware table for various protocols. The rewrite engine is able to detect missing fields from a protocol header and is able to expand the protocol header to a maximum size such that the protocol header contains all possible fields of that protocol. Each of the fields has the same offset irrespective of which variation of the protocol the protocol header corresponds to. The expanded protocol header is represented by a data structure that is independent of a size of the protocol header.

The invention provides a configurable caching system and method. The system comprises a front-end scheduler and a front-end cache server. A related location rule and an embedded script Lua language are provided in the front-end scheduler. According to the system and the method provided by the invention, by using url rewriting technology and a self-defined header field value in the front-end scheduler, factors that may interfere with caching are eliminated, thereby ensuring a hit rate of caching to a maximum extent; it is ensured that different URLs are cached according to same logic; meanwhile, it is ensured that login users are provided with separate caching logic for a same URL.

Embodiments of the apparatus for modifying packet headers relate to a rewrite engine that represents each protocol header of packets in a generic format specific to that protocol to enable programmable modifications of packets, resulting in hardware and software flexibility in modifying packet headers. Software programs generic formats in a hardware table for various protocols. The rewrite engine is able to detect missing fields from a protocol header and is able to expand the protocol header to a maximum size such that the protocol header contains all possible fields of that protocol. Each of the fields has the same offset irrespective of which variation of the protocol the protocol header corresponds to. In a bit vector, all newly added fields are marked invalid (represented by 0), and all existing fields are marked valid (represented by 1). Software modification commands allow data to be replaced, removed and inserted.

The invention provides a method and device for generating uniform resource locator (URL) rewriting rules. The method comprises the steps of obtaining a target URL set of a target website, wherein thetarget website is a website to generate the URL rewriting rules; obtaining a parameter set of mutually corresponding prefix parameters and resource parameters in the target URL set, wherein the resource parameters are sub-paths of the prefix parameters; and generating a URL rewriting rule set of the target website according to the parameter set. The URL rewriting rules of the website can be automatically analyzed according to an access log without manual participation by adopting the embodiment of the invention.

The invention discloses a gateway configuration method. The method comprises steps of: receiving requests sent by users; importing the requests into a plurality of selectors in sequence, and determining whether a current request is in accordance with a determining rule of the selectors, wherein the rule comprises one or more of a mirror requesting rule, a reorientation rule, a URL rewrite rule, and a forwarding rule; if the current request is in accordance with the determining rule of the selectors, processing the request correspondingly according to rules. The method configures and manages user requests in a unified manner, and can screen and process requests according to different rules of the selectors. Further, the invention provides a gateway device and an API gateway using the configuration method. Requests are input, processed, calculated and shown in a unified manner, so that the method has advantages of unified management, centralized processing, flexible configuration and real-time showing.

Embodiments of the apparatus for modifying packet headers relate to a use of bit vectors to allow expansion and collapse of protocol headers within packets for enabling flexible modification. A rewrite engine expands each protocol header into a generic format and applies various commands to modify the generalized protocol header. The rewrite engine maintains a bit vector for the generalized protocol header with each bit in the bit vector representing a byte of the generalized protocol header. A bit marked as 0 in the bit vector corresponds to an invalid byte, while a bit marked as 1 in the bit vector corresponds to a valid byte. The rewrite engine uses the bit vector to remove all the invalid bytes after all commands have been operated on the generalized protocol header to thereby form a new protocol header.

Embodiments of the apparatus for modifying packet headers relate to pointer structure for splitting a packet into individual layers and for intelligently stitching them back together. The pointer structure includes N+1 layer pointers to N+1 protocol headers. The pointer structure also includes a total size of all headers. A rewrite engine uses the layer pointers to extract the first N corresponding protocol layers within the packet for modification. The rewrite engine uses the layer pointers to form an end point, which together with the total size of all headers is associated with a body of the headers. The body of the headers is a portion of headers that are not modified by the rewrite engine. After all the modifications are performed and modified headers are compressed, the modified layer pointers are used to stitch the modified headers back together with the body of the headers.

The invention discloses a data rewriting method and device, a storage medium and computer equipment. The method comprises the steps that rewriting data are mined based on user interaction behavior data in a historical time period, a rewriting database is constructed according to the rewriting data, the rewriting data comprise all rewriting combination pairs in the historical time period, and each rewriting combination pair comprises a wrong word and a correct word; based on log data generated every day in a historical time period, incrementally updating the rewriting database to correct interaction failure data in the rewriting database; the rewriting engine is constructed based on the rewriting database, and the rewriting engine is used for rewriting wrong words in the to-be-tested text, so that data rewriting based on user interaction behaviors can be realized, and the semantic understanding accuracy and the interaction success rate can be remarkably improved for identifying wrong or statement generalization words.