CN109618004A - A kind of message forwarding method and device - Google Patents
A kind of message forwarding method and device Download PDFInfo
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- CN109618004A CN109618004A CN201910040915.8A CN201910040915A CN109618004A CN 109618004 A CN109618004 A CN 109618004A CN 201910040915 A CN201910040915 A CN 201910040915A CN 109618004 A CN109618004 A CN 109618004A
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- client
- access device
- list item
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- 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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
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- 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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Information Transfer Between Computers (AREA)
Abstract
The embodiment of the present application provides a kind of message forwarding method and device, it is related to field of communication technology, portal authentication service is provided to solve the problem of that the resource of virus APP occupancy portal web page server in the prior art influences portal web page server for normal users.Scheme provided by the embodiments of the present application includes: the redirection request message for receiving client and sending, then judge between access device and client with the presence or absence of TCP connection, if there are TCP connections between access device and client, it then sends to redirect to client and replys message, redirect and reply the address URL that message carries portal web page server.
Description
Technical field
This application involves fields of communication technology, more particularly to a kind of message forwarding method and device.
Background technique
It, can be in such a way that portal be authenticated pair when client accesses network currently, the safety in order to guarantee network
The identity of client is authenticated.The method of portal certification are as follows: built between client and access device by three-way handshake
Vertical transmission control protocol (Transmission Control Protocol, TCP) connection, then client is sent out to access device
It send and redirects hypertext transfer protocol (hyper text transfer protocol, http) data message, access device connects
After receiving the redirection http data message, the uniform resource locator comprising portal web page server is replied to client
The http of the address (Uniform Resource Locator, URL) replys message, and then client is by accessing the address URL
Carry out portal certification.
However, there are some virus applications programs (Application, APP) not to build to access device transmission in client
The request of vertical TCP connection, directly sends to access device and redirects http data message.Access device receives viral APP institute
The redirection http data message that sends of terminal after, even if not establishing TCP connection with the client, can also reply and include
The http of the address URL of portal web page server replys message.Virus APP in this way can get portal web service
The address URL of device, and then send a large amount of http message request to portal web page server and obtain authentication interface, it occupies
The resource of portal web page server influences portal web page server for normal users and provides portal authentication service.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of message forwarding method and device, it is viral in the prior art to solve
APP occupies the resource of portal web page server, influences portal web page server for normal users and provides portal certification clothes
The problem of business.Specific technical solution is as follows:
In a first aspect, the embodiment of the present application provides a kind of message forwarding method, the method is applied to access device, described
Method includes:
Receive the redirection request message that client is sent；
Judge to connect between the access device and the client with the presence or absence of transmission control protocol TCP；
If there are TCP connections between the access device and the client, it is redirected back to client transmission
Multiple message, described redirect reply the address uniform resource identifier URL that message carries portal web page server.One kind can
In the implementation of energy, it whether there is TCP connection between the judgement access device and the client, comprising:
Judge connect list item in whether include the client address information, the connection list item for storage with institute
State the address information that access device establishes the client of TCP connection；
If in the connection list item including the address information of the client, it is determined that the access device and the client
There are TCP connections between end；
If in the connection list item not including the address information of the client, it is determined that the access device and the visitor
TCP connection is not present between the end of family.
In one possible implementation, the method also includes:
After establishing TCP connection between the access device and the client, the address information of the client is added
Enter the connection list item.
In one possible implementation, after sending redirection to the client and replying message, the method
Further include:
The address information of the client is deleted from the connection list item.
Second aspect, the embodiment of the present application provide a kind of apparatus for forwarding message, and described device is applied to access device, described
Device includes:
Receiving module, for receiving the redirection request message of client transmission；
Judgment module, for judging between the access device and the client with the presence or absence of transmission control protocol TCP
Connection；
Sending module, if for there are TCP connections between the access device and the client, to the client
It sends to redirect and replys message, described redirect replys the uniform resource identifier URL that message carries portal web page server
Address.
In one possible implementation, the judgment module, is specifically used for:
Judge connect list item in whether include the client address information, the connection list item for storage with institute
State the address information that access device establishes the client of TCP connection；
If in the connection list item including the address information of the client, it is determined that the access device and the client
There are TCP connections between end；
If in the connection list item not including the address information of the client, it is determined that the access device and the visitor
TCP connection is not present between the end of family.
In one possible implementation, described device further include:
Adding module, after establishing TCP connection between the access device and the client, by the client
Address information the connection list item is added.
In one possible implementation, described device further include:
Removing module, for deleting the address information of the client from the connection list item.
The third aspect, the embodiment of the present application provide a kind of access device, which includes: processor and machine readable
Storage medium, the machine readable storage medium is stored with the machine-executable instruction that can be executed by the processor, described
Processor is promoted by the machine-executable instruction: realizing message forwarding method described in first aspect.
Fourth aspect, the embodiment of the present application also provides a kind of computer readable storage medium, the computer-readable storages
Dielectric memory contains computer program, realizes that message described in first aspect turns when the computer program is executed by processor
Forwarding method.
5th aspect, the embodiment of the present application also provides a kind of computer program products comprising instruction, when it is being calculated
When being run on machine, so that computer executes message forwarding method described in above-mentioned first aspect.
Using message forwarding method provided by the embodiments of the present application and device, access device receives the weight of client transmission
After orienting request message, can determine whether between access device and client with the presence or absence of TCP connection, access device and client it
Between there are in the case where TCP connection, Cai Huixiang client sends being redirected back to for the address URL for carrying portal web page server
Multiple message.And the client for not establishing TCP connection with access device can not get the address URL of portal web page server,
It can be sent largely to portal web page server for requesting to recognize to avoid the client for not establishing TCP connection with access device
The message for demonstrate,proving interface allows the portal web page server to be so that the resource of portal server be avoided maliciously to be occupied
Normal users provide portal authentication service.
Certainly, implement the application any product or method it is not absolutely required to and meanwhile reach all the above excellent
Point.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of communication system provided by the embodiments of the present application；
Fig. 2 is a kind of flow chart of message forwarding method provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of apparatus for forwarding message provided by the embodiments of the present application；
Fig. 4 is a kind of structural schematic diagram of access device provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall in the protection scope of this application.
Message forwarding method provided by the embodiments of the present application can be applied in communication system as shown in Figure 1, the communication
It include: client, access device and portal web page server in system.
Wherein, client can have the equipment of network communicating function for mobile phone, computer, wearable device etc..
Access device can be access controller (AC, Access Controller), switch or router etc. for managing
The equipment for managing client access network.
Portal web page server is used to provide portal certification page for client.
In order to solve the resource that virus APP in the prior art occupies portal web page server, portal webpage clothes are influenced
Business device the problem of providing portal authentication service for normal users, access device receives client and sends in the embodiment of the present application
Redirection request message after, can determine whether between access device and the client end with the presence or absence of TCP connection, there are TCP companies
In the case where connecing, sends to redirect to client and reply message, and then can be to avoid not there is no TCP connection between access device
Client get the address URL of portal server, and then avoid viral APP request portal authentication interface and
The occupancy of the caused resource to portal web page server, provides portal web page server normally for user
Portal authentication service.
Message forwarding method provided by the embodiments of the present application is described in detail below.
Communication system as shown in connection with fig. 1, the embodiment of the present application provide a kind of message forwarding method, and this method is applied to connect
Enter equipment, as shown in Fig. 2, method includes the following steps:
S201, the redirection request message that client is sent is received.
Wherein, redirection request message is http message.
S202, judge between access device and client with the presence or absence of TCP connection.
Specifically, access device can determine whether include the address information of client in connection list item, if connecting in list item
Address information including the client, it is determined that there are TCP connections between access device and client；If not wrapped in connection list item
Include the address information of client, it is determined that TCP connection is not present between access device and client.Wherein, connection list item is used for
The address information of the client of TCP connection has been established in storage with access device.Address information can be the internet protocol of client
It discusses (Internet Protocol, IP).Optionally, address information can also be the media access control (Media of client
Access Control Address, MAC) address.
It should be noted that client can be set before sending http message to access device with access in normal flow
It is standby that TCP connection is established by three-way handshake.
Shake hands for the first time: client sends synchronizing sequence number (Synchronize Sequence to access device
Numbers, SYN) message, seq (sequence number)=j is carried, and enter SYN_send state, waits access device confirmation.
Second handshake: after access device receives SYN message, however, it is determined that the purpose IP address of the SYN message is not
The IP address of portal web page server, then judge whether the client has carried out portal certification, if the client does not carry out
Portal certification, then the destination address of the counterfeit SYN message received, replys SNY confirmation to client
(Acknowledgement, ACK) message.Ack=j+1, seq=k are carried in SNY ACK message.And access device enters SYN_
RECV state.
Third time is shaken hands: after client receives the SNY ACK message of access device transmission, sending ACK to access device
Message carries ack=k+1.Then client and AC enter establish and (have been established) state, indicate client and access
Three-way handshake is completed in equipment, establishes TCP connection.
After access device and client establish TCP connection, connection list item is added in the address information of client.
Optionally, access device can in above-mentioned third time handshake procedure, receive client transmission ACK message after,
Connection list item is added in the IP address of client.
In another implementation, access device can periodic scan and the client of itself establishing TCP connection, and will
It is scanning that connection list item is added with client that is itself establishing TCP connection IP address.
It is understood that if the client where virus APP does not establish connection with access device, and directly set to access
Preparation send redirection request message, then connects the address information that the client will not be stored in list item.
If sending to redirect to client and replying message there are TCP connection between S203, access device and client,
It redirects and replys the address URL that message carries portal web page server.
Optionally, it if there are TCP connections between access device and client, is reset in access device to client transmission
To after replying message, the address information of the client can be deleted from connection list item, to avoid being stored in connection list item
Address information excessively occupy the storage resource of access device.
It is understood that not reset to client return if TCP connection is not present between access device and client
To reply message.
Using message forwarding method provided by the embodiments of the present application, the redirection that access device receives client transmission is asked
After seeking message, it can determine whether exist between access device and client between access device and client with the presence or absence of TCP connection
In the case where TCP connection, Cai Huixiang client sends the redirection reply report for carrying the address URL of portal web page server
Text.And the client for not establishing TCP connection with access device can not get the address URL of portal web page server, it can be with
The client for not establishing TCP connection with access device is avoided to send largely to portal web page server for requesting certification circle
The message in face allows portal web page server to be normal so that the resource of portal server be avoided maliciously to be occupied
User provides portal authentication service.
Corresponding to above method embodiment, the embodiment of the present application also provides a kind of apparatus for forwarding message, which is applied to
Access device, as shown in figure 3, the device includes: receiving module 301, judgment module 302 and sending module 303.
Receiving module 301, for receiving the redirection request message of client transmission；
Judgment module 302 connects between access device and client with the presence or absence of transmission control protocol TCP for judging；
Sending module 303, if being reset for there are TCP connections between access device and client to client transmission
To message is replied, redirects and reply the address uniform resource identifier URL that message carries portal web page server.Optionally,
Judgment module 302, is specifically used for:
Judge connect list item in whether include client address information, connection list item for store built with access device
The address information of the client of vertical TCP connection；
Wherein, address information can be the IP address or MAC Address of client.
If connecting the address information in list item including client, it is determined that there are TCP companies between access device and client
It connects；
If in connection list item not including the address information of client, it is determined that be not present between access device and client
TCP connection.
Optionally, the device further include:
Adding module adds the address information of client after establishing TCP connection between access device and client
Enter to connect list item.
Optionally, the device further include:
Removing module, for deleting the address information of client from connection list item.
The embodiment of the present application also provides a kind of access devices, as shown in figure 4, include processor 401, communication interface 402,
Memory 403 and communication bus 404, wherein processor 401, communication interface 402, memory 403 are complete by communication bus 404
At mutual communication,
Memory 403, for storing computer program；
Processor 401 when for executing the program stored on memory 403, is realized in above method embodiment by connecing
Enter the step of equipment executes.
The communication bus that above-mentioned access device is mentioned can be Peripheral Component Interconnect standard (Peripheral Component
Interconnect, PCI) bus or expanding the industrial standard structure (Extended Industry Standard
Architecture, EISA) bus etc..The communication bus can be divided into address bus, data/address bus, control bus etc..For just
It is only indicated with a thick line in expression, figure, it is not intended that an only bus or a type of bus.
Communication interface is for the communication between above-mentioned access device and other equipment.
Memory may include random access memory (Random Access Memory, RAM), also may include non-easy
The property lost memory (Non-Volatile Memory, NVM), for example, at least a magnetic disk storage.Optionally, memory may be used also
To be storage device that at least one is located remotely from aforementioned processor.
Above-mentioned processor can be general processor, including central processing unit (Central Processing Unit,
CPU), network processing unit (Network Processor, NP) etc.；It can also be digital signal processor (Digital Signal
Processing, DSP), it is specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing
It is field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete
Door or transistor logic, discrete hardware components.
In another embodiment provided by the present application, a kind of computer readable storage medium is additionally provided, which can
It reads to be stored with computer program in storage medium, the computer program realizes any of the above-described message forwarding when being executed by processor
The step of method.
In another embodiment provided by the present application, a kind of computer program product comprising instruction is additionally provided, when it
When running on computers, so that computer executes any message forwarding method in above-described embodiment.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.The computer program
Product includes one or more computer instructions.When loading on computers and executing the computer program instructions, all or
It partly generates according to process or function described in the embodiment of the present application.The computer can be general purpose computer, dedicated meter
Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium
In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer
Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center
User's line (DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another web-site, computer, server or
Data center is transmitted.The computer readable storage medium can be any usable medium that computer can access or
It is comprising data storage devices such as one or more usable mediums integrated server, data centers.The usable medium can be with
It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state hard disk
Solid State Disk (SSD)) etc..
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The foregoing is merely the preferred embodiments of the application, are not intended to limit the protection scope of the application.It is all
Any modification, equivalent replacement, improvement and so within spirit herein and principle are all contained in the protection scope of the application
It is interior.
Claims (10)
1. a kind of message forwarding method, which is characterized in that the method is applied to access device, which comprises
Receive the redirection request message that client is sent；
Judge to connect between the access device and the client with the presence or absence of transmission control protocol TCP；
If sending to redirect to the client and replying report there are TCP connection between the access device and the client
Text, described redirect reply the address uniform resource identifier URL that message carries portal web page server.
2. the method according to claim 1, wherein between the judgement access device and the client
With the presence or absence of TCP connection, comprising:
Judge connect list item in whether include the client address information, the connection list item for storage connect with described
Enter the address information that equipment establishes the client of TCP connection；
If in the connection list item including the address information of the client, it is determined that the access device and the client it
Between there are TCP connections；
If in the connection list item not including the address information of the client, it is determined that the access device and the client
Between be not present TCP connection.
3. method according to claim 1 or 2, which is characterized in that the method also includes:
After establishing TCP connection between the access device and the client, institute is added in the address information of the client
State connection list item.
4. according to the method described in claim 3, it is characterized in that, to the client send redirect reply message it
Afterwards, the method also includes:
The address information of the client is deleted from the connection list item.
5. a kind of apparatus for forwarding message, which is characterized in that described device is applied to access device, and described device includes:
Receiving module, for receiving the redirection request message of client transmission；
Judgment module connects between the access device and the client with the presence or absence of transmission control protocol TCP for judging；
Sending module, if being sent for there are TCP connections between the access device and the client to the client
It redirects and replys message, described redirect replys the address uniform resource identifier URL that message carries portal web page server.
6. device according to claim 5, which is characterized in that the judgment module is specifically used for:
Judge connect list item in whether include the client address information, the connection list item for storage connect with described
Enter the address information that equipment establishes the client of TCP connection；
If in the connection list item including the address information of the client, it is determined that the access device and the client it
Between there are TCP connections；
If in the connection list item not including the address information of the client, it is determined that the access device and the client
Between be not present TCP connection.
7. device according to claim 5 or 6, which is characterized in that described device further include:
Adding module, after establishing TCP connection between the access device and the client, by the ground of the client
The connection list item is added in location information.
8. device according to claim 7, which is characterized in that described device further include:
Removing module, for deleting the address information of the client from the connection list item.
9. a kind of access device, which is characterized in that including processor and machine readable storage medium, the machine readable storage is situated between
Matter is stored with the machine-executable instruction that can be executed by the processor, and the processor is promoted by the machine-executable instruction
Make: realizing any method and step of claim 1-4.
10. a kind of machine readable storage medium, which is characterized in that be stored with machine-executable instruction, by processor call and
When execution, the machine-executable instruction promotes the processor: realizing any method and step of claim 1-4.
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| CN201910040915.8A CN109618004A (en) | 2019-01-16 | 2019-01-16 | A kind of message forwarding method and device |
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| CN201910040915.8A CN109618004A (en) | 2019-01-16 | 2019-01-16 | A kind of message forwarding method and device |
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| CN113626736A (en) * | 2021-08-10 | 2021-11-09 | 迈普通信技术股份有限公司 | URL feature learning method and device, electronic equipment and computer readable storage medium |
| CN113626736B (en) * | 2021-08-10 | 2023-11-17 | 迈普通信技术股份有限公司 | URL feature learning method, device, electronic equipment and computer readable storage medium |
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