WO2020134329A1 - Procédé de mise en œuvre de service de passerelle, dispositif de commande et passerelle - Google Patents

Procédé de mise en œuvre de service de passerelle, dispositif de commande et passerelle Download PDF

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Publication number
WO2020134329A1
WO2020134329A1 PCT/CN2019/110348 CN2019110348W WO2020134329A1 WO 2020134329 A1 WO2020134329 A1 WO 2020134329A1 CN 2019110348 W CN2019110348 W CN 2019110348W WO 2020134329 A1 WO2020134329 A1 WO 2020134329A1
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WO
WIPO (PCT)
Prior art keywords
gateway
instruction
model
service
pipeline
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PCT/CN2019/110348
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English (en)
Chinese (zh)
Inventor
胡锐
徐代刚
刘学生
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中兴通讯股份有限公司
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Publication of WO2020134329A1 publication Critical patent/WO2020134329A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14—Network analysis or design
    • H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/51—Discovery or management thereof, e.g. service location protocol [SLP] or web services

Definitions

  • FIG. 4 is a schematic diagram of an operation interface provided by a model designer according to an embodiment of the present invention.
  • the user interface unit is set to display an operation interface and receive user input commands
  • the gateway 2 includes a gateway control plane 21, an instruction executor 22, a request parser 23, a request dispatcher 24, a response parser 25, and a response feedbacker 26, among them:
  • the instruction executor 22 is configured to process received messages (such as HTTP request messages and HTTP response messages) according to the first instruction issued.
  • the instruction executor 22 may save the issued first instruction as an entry in the instruction flow table library, and the first instruction may also be called a flow table instruction.
  • the logical structure of the first instruction for message processing is a pipeline. This pipeline includes one or more branches, each branch has one or more execution links, and each execution link can include one or more first instructions, such as Figure 2 shows. After the gateway 2 receives a message, the message is processed step by step in the instruction executor 22 according to the pipeline, and each instruction in the pipeline runs in a "matching condition, execute action" manner to realize the pipeline of the message deal with.
  • the above embodiment of the present invention implements a system for implementing a gateway service.
  • the gateway service uses a model-driven design, which can respond to different business needs and quickly achieve business goals. The operation and maintenance personnel can develop new services without the need for different services. Different plug-ins for business development.
  • the generating the gateway business model according to the input instruction includes:
  • the gateway business model is generated according to the attributes of the pipeline and the constituent elements.
  • the model design area is located in the middle of the operation interface.
  • the right side of the operation interface also includes a model attribute area for filling in the attributes of the constituent elements.
  • "Model design area” is the visual display area of the model.
  • Designers can construct the model by dragging the elements of "element selection area” to "model design area”.
  • the gateway service control device records the dragged optional element as a component element of the gateway service model.
  • the designer selects a specific element in the "Model Design Area”, he can set the attributes of the element in the "Model Attribute Area", such as matching conditions and execution actions.
  • the generated gateway business model is a pipeline including multiple links in the logical structure.
  • a link may include a second instruction (such as a DSL instruction) or multiple second instructions that are sequentially executed on the pipeline.
  • a second instruction such as a DSL instruction
  • multiple second instructions that perform similar functions can be combined into one link to simplify the pipeline structure and facilitate model design.
  • the link includes at least one of the following information: service identification, link identification, entry link identification, priority, instruction identification, matching rules, and execution actions; wherein, the entry link matching rules are used to determine whether the received message is The pipeline where the entry link is matched; the priority of the entry link is used to determine the order in which the pipeline is matched; the execution action is used to determine the processing performed on the message, including the action of jumping to the next link or instruction.
  • the matching rules and execution actions of the second instruction can be determined according to the links to which the constituent elements of the pipeline belong, the connection relationships of the various links, and the attributes of the constituent elements.
  • the gateway business model when delivering the gateway service information to the gateway according to the generated gateway business model, the gateway business model is directly delivered to the gateway. For example, by clicking the "Send" button in the model designer, the gateway business model is delivered to the HTTP gateway.
  • the gateway business model is first parsed and converted into a first instruction executable by the gateway, and then the first instruction is issued to the gateway.
  • the method executed on the gateway side as shown in FIG. 5 includes: step 210, the gateway obtains a plurality of first instructions for implementing the gateway service, wherein the first instruction is obtained based on the gateway service model; and, step 220, The gateway processes the received message according to the first instruction.
  • the gateway business model may be generated using the method for generating a gateway business model according to any embodiment of the present invention.
  • the gateway acquiring a plurality of first instructions for implementing the gateway service includes: the gateway receives the gateway service model, parses the gateway service model and converts it into multiple The first instruction. Before parsing the gateway business model, the gateway business model can also be verified, such as a CRC check. If the check fails, it is rejected.
  • Step 2 The gateway determines whether there is a matching pipeline according to the relevant characteristics in the request message (such as IP address, login_token in cookie, etc.). If not, the request message is rejected and the process ends; if so, continue to the next step .
  • relevant characteristics in the request message such as IP address, login_token in cookie, etc.
  • Step 3 Starting from the matched first instruction of the pipeline, sequentially execute all the first instructions on the pipeline to process the request message, and deliver the processed request message to the back-end service.
  • the processing of the response message (such as the HTTP response message) by the gateway includes:
  • Step 1 The gateway parses the received response message returned by the back-end service to obtain the content of the response message, such as header and body information;
  • Step 2 The gateway determines whether there is a matching pipeline according to the relevant characteristics of the response message. If not, it rejects the request message and the process ends; if it does, it continues to the next step.
  • the pipeline is the pipeline that matches the response message.
  • Step 3 Starting from the matched first instruction of the pipeline, execute all the first instructions of the pipeline in sequence to process the response message, and return the processed response message to the client that sends the corresponding request message .
  • the HTTP gateway needs to carry multiple different gateway services at the same time, so the processing flow of multiple services can be run simultaneously in the instruction executor.
  • HTTP The messages are numbered, and at the same time, the HTTP request/response is sent to different pipelines for processing according to the matching characteristics of the HTTP message and the pipeline, and the corresponding number is used to track the corresponding processing process.
  • the first instruction when executed, it is a mode for explaining execution.
  • instant conversion technology can be used to convert the first instruction into machine code such as native code again. Implementation to improve the processing efficiency of the entire process.
  • the logical structure of the service gateway model is one or more pipelines.
  • different pipelines can be used to process different types of packets.
  • Each pipeline may include one or more branches.
  • Business identification used to identify the business targeted by this session.
  • Link ID The link number can be used as the link ID.
  • Entry link identification A value of "Y" indicates that the link is an entry link, and the matching rules of the entry link are used to determine whether the pipeline matches the received message.
  • Priority Set the priority when this link is an entry link. The smaller the number in this field, the higher the priority. When the priority is the same, it can be defined as the link ID is larger and the priority is higher, or vice versa.
  • the gateway receives the message and determines whether the message matches the set pipeline according to the characteristics of the message, it starts from the high-priority entry link (also known as the entry), according to the order from high to low Match in order.
  • Matching rule It can also be called a matching condition, which is used to determine whether the request message meets certain conditions, so as to control the processing flow of the pipeline.
  • the characteristics of the matching operation can be any part of the message, such as httpURL, http header and http body etc.
  • Execution action the processing performed on the message, such as: modifying the HTTP header, rewriting the URL, increasing the counter, forwarding the HTTP request to the back-end service, rejecting the HTTP request, and skipping to the next link or instruction.
  • the above matching rules and execution actions can be described (or written) in a specific DSL language at the time of design, and converted by the gateway control plane into the content of the first instruction executable by the gateway.
  • a link is an instruction, and a link ID is also an instruction ID.
  • a link includes the above service ID, link ID, entry link ID, priority, matching rules, and execution actions. , There is no need to set the instruction ID separately.
  • a link may include multiple instructions.
  • each instruction has its own matching rules and execution actions. It is also necessary to set an instruction identifier for each instruction to distinguish different instructions .
  • the business name, link ID, entrance link ID, etc. can be shared by multiple instructions in the same link.
  • a plurality of the first instructions form a pipeline for processing gateway services, and the first instructions may include at least one of the following information:
  • the instruction identifier which may include both the link number and the instruction number in the first instruction
  • the matching rule of the first instruction in the pipeline is used to determine whether the received message matches the pipeline; the priority of the first instruction is used to determine the order of matching the pipeline; the execution The action is used to determine the processing performed on the message, one of which is the action to jump to the next instruction.
  • the matching rule can be set to a default value such as TRUE, and the default matching is successful.
  • the order of the instructions in the pipeline can be determined according to the instruction ID of the sequential number.
  • the HTTP gateway needs to develop various business logics. Traditionally, it is realized by developing and deploying different business plug-ins and deploying in the HTTP gateway. After adopting the solution of the embodiment of the present invention, it is not written The way of plug-in can be realized by the operation and maintenance personnel using a unified process and model.
  • An enterprise microservice architecture system needs to use basic (access) authentication for all HTTP requests from outside.
  • the operation and maintenance personnel use the model designer to design the certified gateway business model and the completed model.
  • the gateway control analyzes the gateway business model, converts it into an executable instruction and sends it to the instruction executor.
  • the corresponding instruction is shown in Figure 6B.
  • Step 501 The HTTP gateway listens to the HTTP request message on port 80.
  • Step 502 In the cookie of the HTTP request message, there is no login_token attribute, and this embodiment indicates that the message is a request message.
  • Step 504 Analyze the Authorization field through the BASE64 algorithm to obtain the user name and password.
  • Step 505 Use the user name to obtain the user's password from the cache.
  • Step 506 Compare the password obtained in the cache with the password obtained in step 504, assuming that the two are the same.
  • Step 507 Forward the HTTP request message to the back-end processor.
  • Step 508 Receive the HTTP response message returned by the back-end processor after completing the processing.
  • Step 509 Set the login_token attribute in the HTTP response cookie.
  • Step 510 Return the HTTP response to the HTTP client.
  • an operator's API development platform needs to limit the access frequency of non-logged-in users, and its access quota is 10 times per minute.
  • the operator’s API platform uses the RESTFUL interface to provide external API services.
  • QoS Quality of Service
  • the operation and maintenance personnel use the model designer to design the current-limiting business model and the completed model.
  • the gateway control analyzes the model, generates executable instructions and delivers them to the instruction executor.
  • the corresponding instructions are shown in Figure 7B.
  • Step 701 The HTTP server listens to the HTTP request message on port 80.
  • Step 702 In the cookie of the HTTP request message, if there is no login_token attribute, go to step 703, and if there is the login_token attribute, go to step 708.
  • Step 703 Obtain the original IP address of the request from the HTTP request message.
  • Step 704 Obtain the number of visited times in the current statistical period (within one minute) from the cache according to the obtained IP address.
  • Step 705 If the number of accessed times has reached 10 times, go to step 706, and if not, go to step 707.
  • Step 706 the forwarding of the access request is denied, and the end
  • Step 707 The current count in the cache is increased by 1;
  • Step 708 forward the HTTP request message to the backend processor, and end.
  • a government department needs to upgrade its application in the public cloud, which needs to be completed by using a canary upgrade.
  • the operation and maintenance personnel use the model designer to design the business model upgraded by Canary, and design the completed model.
  • the gateway control Facing the model analysis, the gateway control generates executable instructions and delivers them to the instruction executor.
  • the corresponding instructions are shown in Figure 8B.
  • Request processing After receiving the request message, it will execute all the instructions of the pipeline.
  • the processing logic can be seen in FIG. 8A.
  • Step 901 The HTTP server listens to the HTTP request message on port 80.
  • Step 902 Obtain the original IP address of the request message from the HTTP request.
  • Step 903 Calculate the hash (HASH) by the original IP address, then find the modulus with 100.
  • Step 904 determine whether the modulus is 1, go to step 906, otherwise go to step 905.
  • Step 905 Forward the HTTP request message to the old version of the service and end.
  • Step 906 Forward the HTTP request message to the new version of the service and end.
  • An e-commerce company needs to launch a spike service.
  • the first 100 requests can be purchased, and the subsequent request returns a spike response.
  • Implementation environment description An e-commerce needs to launch a spike service.
  • the HTTP gateway uses an access counter to count. When the count is less than 100, the order is normally placed and the counter is increased by one. Otherwise, the request returns a response to the spike failure. Take this device as an example to describe this invention in detail:
  • the operation and maintenance personnel use the model designer to design the spike business model, and the designed model is shown in FIG. 9A.
  • the gateway control generates executable instructions and delivers them to the instruction executor.
  • the relevant instructions are shown in Figure 9B.
  • Request and response processing After receiving the request message and the response message, all the instructions of the pipeline will be executed.
  • the processing logic can be seen in FIG. 9A.
  • Step 1101 The HTTP server listens to the HTTP request message on port 80.
  • Step 1102 Obtain the current request count from the cache.
  • Step 1103 determine whether the request count reaches 100, reach forward to step 1104, and fail to forward to step 1106.
  • Step 1104 The request count in the cache is increased by one.
  • Step 1105 Go to the HTTP request to the service server and end.
  • Step 1106 Return a response to the spike failure to the HTTP client, and the process ends.
  • the gateway service to be implemented in this embodiment is: the access frequency of users who are authenticated is controlled at 1000 times per second, and the overall access frequency of non-identified users is controlled at 100 times per second. Identity can be used in this HTTP gateway service The combination of the authentication model and the access limitation model is completed.
  • This embodiment mainly explains the nesting in model design. Assuming that a first gateway business model for implementing the current limiting control process and a second gateway business model for implementing the authorization control process have been designed, when designing the third gateway business model of this embodiment, you can The first gateway business model and the second gateway business model are embedded as a link in the third gateway business model, that is, the permission control sub-process and the current limit control sub-process are embedded into the overall business process, as shown in Figure 10 Processing logic.
  • An exemplary embodiment of the present invention further provides a gateway service control device, as shown in FIG. 11, including a processor 50, a memory 60, and a computer stored on the memory 60 and capable of running on the processor 50 Program, when the processor 50 executes the calculation program, the processing of the method executed by the gateway service control device side according to any of the above embodiments of the present invention is implemented.
  • a gateway service control device as shown in FIG. 11, including a processor 50, a memory 60, and a computer stored on the memory 60 and capable of running on the processor 50 Program, when the processor 50 executes the calculation program, the processing of the method executed by the gateway service control device side according to any of the above embodiments of the present invention is implemented.
  • An exemplary embodiment of the present invention also provides a gateway.
  • a gateway includes a processor 50, a memory 60, and a computer program stored on the memory 60 and executable on the processor 50.
  • the processor 50 executes the calculation program, it implements the processing of the method performed by the gateway side according to any one of the above embodiments of the present invention.
  • An exemplary embodiment of the present invention also provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the processing of the method described in any of the above embodiments of the present invention.
  • the DSL language is used to build the gateway business model, and the model is converted into executable instructions and then issued to the instruction executor, so that the gateway business development can be completed based on high-level abstractions.
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage medium includes both volatile and nonvolatile implemented in any method or technology for storing information such as computer readable instructions, data structures, program modules, or other data Sex, removable and non-removable media.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and accessible by a computer.
  • the communication medium generally contains computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and may include any information delivery medium .
  • the embodiments of the present invention can respond to different business needs and quickly realize business goals, and the operation and maintenance personnel can develop new services, and no longer need to develop different plug-ins according to different services.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Computer And Data Communications (AREA)

Abstract

La présente invention concerne, dans ses modes de réalisation, un procédé de mise en œuvre de service de passerelle, un dispositif de commande et une passerelle. Un dispositif de commande de service de passerelle génère un modèle de service de passerelle selon une instruction d'entrée ; et envoie des informations de service de passerelle à une passerelle selon le modèle de service de passerelle généré. La passerelle acquiert une pluralité de premières instructions pour la mise en œuvre de services de passerelle, et traite des messages reçus selon les premières instructions. Les services de passerelle dans la présente invention adoptent une conception guidée par modèle, et peuvent satisfaire différentes exigences de service, en atteignant rapidement des objectifs de service, sans avoir besoin de développer différents modules d'extension selon différents services.
PCT/CN2019/110348 2018-12-29 2019-10-10 Procédé de mise en œuvre de service de passerelle, dispositif de commande et passerelle WO2020134329A1 (fr)

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