CN106487819B - A kind of method and apparatus that HTTP request is acted on behalf of by UDP - Google Patents
A kind of method and apparatus that HTTP request is acted on behalf of by UDP Download PDFInfo
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- CN106487819B CN106487819B CN201611248958.8A CN201611248958A CN106487819B CN 106487819 B CN106487819 B CN 106487819B CN 201611248958 A CN201611248958 A CN 201611248958A CN 106487819 B CN106487819 B CN 106487819B
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
-
- 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]
- H04L69/164—Adaptation or special uses of UDP protocol
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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
- H04L69/22—Parsing or analysis of headers
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Computer And Data Communications (AREA)
Abstract
The embodiment of the invention provides a kind of method and apparatus for acting on behalf of HTTP request by UDP, which comprises receives the UDP request message that first network equipment is sent, the UDP request message includes UDP request header, uniform resource identifier；The UDP request header is parsed from the UDP request message, identify HTTP domain name, and HTTP request message is constructed according to the HTTP domain name and the uniform resource identifier, the UDP request header is constructed according to the HTTP domain name, and the destination address of the HTTP request message is second network equipment；The HTTP request message is sent to second network equipment.It using the embodiment of the present invention, effectively solves for during the request lesser HTTP request of text, the three-way handshake of TCP causes to request during low efficiency and HTTP request DNS request to be held as a hostage problem, improves and requests efficiency.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of method and dress for acting on behalf of HTTP request by UDP
It sets.
Background technique
When a web site is accessed, domain name is sent to DNS (Domain Name System, domain name system) to go to parse, DNS solution
The IP of website (Internet Protocol, the agreement interconnected between network) address is returned into client after analysis, by IP
Initiate HTTP (Hyper Text Transfer Protocol, hypertext transfer protocol) request in location.During HTTP request,
By establishing TCP (Transmission Control Protocol, transmission control protocol) connection, client could take to Web
Business device sends solicited message, and Web server returns to corresponding response message after receiving solicited message, and client receives
After response message from Web server, execution is explained to these data, while Web server closes TCP connection.
But based on the HTTP of TCP transmission agreement apply, wireless network environment, trans-regional operator network in connect
When connecing server, the three-way handshake process for being typically passed through TCP could establish connection.Three-way handshake is i.e. to the data sent every time
Amount is how to track to hold consultation to make the synchronization that sends and receives of data segment, based on the received data volume and the data of determination
When confirmation number and data transmission cancel connection after receiving, and establish virtual connections.If there is packet loss in handshake procedure,
The process meeting last for several seconds of three-way handshake is connected, at this moment, is not connected always in terms of client application, in terms of server end application
The request content for never receiving user causes the situation of both-end sky etc., only sentences by client setting application layer timer
Disconnected time-out causes request slow, low efficiency.
Moreover, similar DNS request is also easy by Local DNS (Local Domain Name System, home domain name
System) server is kidnapped, for example, operating system can be sent to this domain name the name server of this area, if operation
Quotient want kidnap domain name if, just his this area name server directly in response to a wrong IP to user, cause
User further connected by process the IP failure, although connection it is upper, cannot get the response results of correct IP address.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of method and apparatus for acting on behalf of HTTP request by UDP, solves needle
During the request lesser HTTP request of text, the three-way handshake of TCP leads to the problem of requesting low efficiency and HTTP request
DNS request is held as a hostage problem in the process, improves request efficiency.
In order to achieve the above objectives, the embodiment of the invention discloses a kind of method for acting on behalf of HTTP request by UDP, the sides
Method includes:
The UDP request message that first network equipment is sent is received, the UDP request message includes UDP request header, unified money
Source identifier；
The UDP request header is parsed from the UDP request message, identifies HTTP domain name, and according to the domain HTTP
Name and the uniform resource identifier construct HTTP request message, and the UDP request header is constructed according to the HTTP domain name,
The destination address of the HTTP request message is second network equipment；
The HTTP request message is sent to second network equipment.
Optionally, after the HTTP request message to second network equipment transmission, the method is also wrapped
It includes:
Receive the http response message that second network equipment is sent, the http response message include http response just
Text, the http response message is for responding the HTTP request message；
It is configured to parse the first UDP head response of the http response text, and is sent to the first network equipment
First UDP response message, the first UDP response message include the first UDP head response, the http response text, with
Make the first network equipment by parsing the first UDP head response, reads the http response text, the first UDP
It include the information for reading the http response text in head response.
Optionally, after the HTTP request message to second network equipment transmission, the method is also wrapped
It includes:
If not receiving the http response message or receive institute that second network equipment is sent within a preset time
The HTTP error response message of second network equipment transmission is stated, then constructs the 2nd UDP head response, and to the first network equipment
The 2nd UDP response message is sent, the 2nd UDP response message includes the 2nd UDP head response, the 2nd UDP response
Message is for notifying UDP request message described in the first network equipment to fail, so that the first network equipment passes through parsing
The 2nd UDP head response reads the information of the UDP request message failure.
Optionally, described that the UDP request header is parsed from the UDP request message, identify HTTP domain name, comprising:
The UDP request header is parsed from the UDP request message, identifies the requested service class of the UDP request header
Type；
According to the preconfigured domain name of requested service type, HTTP domain name is identified.
The embodiment of the invention also discloses the methods that another kind acts on behalf of HTTP request by UDP, which is characterized in that the side
Method includes:
UDP request header is constructed according to HTTP domain name to be visited in first network equipment；
UDP request message is sent to UDP proxy server, the UDP request message includes the UDP request header, uniformly
Resource identifier identifies institute so that the UDP proxy server parses the UDP request header from the UDP request message
HTTP domain name is stated, and HTTP request message is constructed according to the HTTP domain name and the uniform resource identifier, issues the second net
Network equipment.
Optionally, after the transmission UDP request message to UDP proxy server, the method further include:
Receive the first UDP response message that the UDP proxy server is sent, the first UDP response message includes the
One UDP head response, http response text, the http response text is for responding the HTTP request message；
The first UDP head response is parsed from the first UDP response message, reads the http response text, institute
Stating includes information for reading the http response text in the first UDP head response.
Optionally, after the transmission UDP request message to UDP proxy server, the method further include:
Receive the 2nd UDP response message that the UDP proxy server is sent, the 2nd UDP response message includes the
Two UDP head responses, the 2nd UDP response message is for notifying UDP request message described in the first network equipment to fail, institute
Stating the 2nd UDP head response is not receive second network equipment hair within a preset time according to the UDP proxy server
The http response message sent receives the HTTP error response message construction that second network equipment is sent；
The 2nd UDP head response is parsed from the 2nd UDP response message, reads the UDP request message failure
Information.
The embodiment of the invention also discloses a kind of device for acting on behalf of HTTP request by UDP, described device includes:
First receiving module, for receiving the UDP request message of first network equipment transmission, the UDP request message packet
Include UDP request header, uniform resource identifier；
First processing module identifies HTTP domain name for parsing the UDP request header from the UDP request message,
And HTTP request message is constructed according to the HTTP domain name and the uniform resource identifier, the UDP request header is according to institute
HTTP domain name construction is stated, the destination address of the HTTP request message is second network equipment；
First sending module, for sending the HTTP request message to second network equipment.
Optionally, first receiving module, is also used to:
Receive the http response message that second network equipment is sent, the http response message include http response just
Text, the http response message is for responding the HTTP request message；
Correspondingly, the first processing module, the first UDP for being also used to be configured to parse the http response text is rung
Answer head；
First sending module, be also used to the first network equipment send the first UDP response message, described first
UDP response message includes the first UDP head response, the http response text, so that the first network equipment passes through solution
The first UDP head response is analysed, the http response text is read, includes described for reading in the first UDP head response
The information of http response text.
Optionally, the first processing module, is also used to:
If not receiving the http response message or receive institute that second network equipment is sent within a preset time
The HTTP error response message of second network equipment transmission is stated, the 2nd UDP head response is constructed；
Correspondingly, first sending module, is also used to send the 2nd UDP response message to the first network equipment,
The 2nd UDP response message includes the 2nd UDP head response, and the 2nd UDP response message is for notifying described first
The failure of UDP request message described in the network equipment, so that the first network equipment is read by parsing the 2nd UDP head response
Take the information of the UDP request message failure.
Optionally, the first processing module, is also used to:
The UDP request header is parsed from the UDP request message, identifies the requested service class of the UDP request header
Type；
According to the preconfigured domain name of requested service type, HTTP domain name is identified.
The embodiment of the invention also discloses another device for acting on behalf of HTTP request by UDP, described device includes:
Second processing module, for constructing UDP request header according to the HTTP domain name in first network equipment；
Second sending module, for sending UDP request message to UDP proxy server, the UDP request message includes institute
UDP request header, uniform resource identifier are stated, so that described in the UDP proxy server parses from the UDP request message
UDP request header identifies the HTTP domain name, and is asked according to the HTTP domain name and uniform resource identifier construction HTTP
Message is sought, second network equipment is issued.
Optionally, described device further include:
Second receiving module, the first UDP response message sent for receiving the UDP proxy server, described first
UDP response message includes the first UDP head response, http response text, and the http response text is asked for responding the HTTP
Seek message；
Correspondingly, the Second processing module, is also used to parse the first UDP from the first UDP response message
Head response reads the http response text, includes for reading the http response text in the first UDP head response
Information.
Optionally, the second receiving module is also used to:
Receive the 2nd UDP response message that the UDP proxy server is sent, the 2nd UDP response message includes the
Two UDP head responses, the 2nd UDP response message is for notifying UDP request message described in the first network equipment to fail, institute
Stating the 2nd UDP head response is not receive second network equipment hair within a preset time according to the UDP proxy server
The http response message sent receives the HTTP error response message construction that second network equipment is sent；
Correspondingly, the Second processing module, is also used to parse the 2nd UDP from the 2nd UDP response message
Head response reads the information of the UDP request message failure.
As seen from the above technical solutions, a kind of method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
And device, the UDP request message that first network equipment is sent is received by UDP proxy server, is then disappeared according to UDP request
The HTTP request message for ceasing construction standard, is finally transmitted to second network equipment for HTTP request message.It is this to be acted on behalf of by UDP
The method for forwarding HTTP request, avoids the three-way handshake and DNS request of TCP, effectively solves lesser for request text
During HTTP request, the three-way handshake of TCP leads to DNS request quilt during the problem of requesting low efficiency and HTTP request
Abduction problem improves request efficiency.Certainly, implement any of the products of the present invention or method must be not necessarily required to reach simultaneously with
Upper all advantages.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, 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 invention 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 a kind of flow diagram for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention；
Fig. 2 is a kind of another process signal of method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Figure；
Fig. 3 is a kind of basic flow chart for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention；
Fig. 4 is a kind of configuration diagram for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention；
Fig. 5 is a kind of a kind of structural schematic diagram for the device that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention；
Fig. 6 is a kind of another structural representation for the device that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
During existing HTTP request, by establishing TCP connection, client could send request letter to Web server
Breath.A large amount of resource overhead is expended due to establishing multiple TCP connection, so allowing and in possible situation, passing through agency to take
Business device agency's forwarding HTTP request.The function of proxy server is exactly that agency network user goes to obtain the network information.Figuratively:
It is the terminal of the network information.Under normal circumstances, it directly goes to connect the acquirement of other internet sites using web browser
When the network information, request signal must be sent out to be answered, then other side with byte mode sends back information to come again.
Proxy server is a server between browser and Web server, and after having it, browser is not
It is directly to go to fetch webpage to proxy server sending request to Web server, request signal can first be sent to agency service
Device is fetched information required for browser by proxy server and sends browser to.Moreover, most of proxy server is all
Have the function of buffering, just look like a big cache memory, it has very big memory space, it constantly will newly be obtained
In data storage to the memory of its machine, if the requested data of browser had existed on the memory of its machine and
And be newest, then it is just not again from Web server access evidence, and directly by the data transmission on memory to user's
Browser can thus significantly improve surfing and efficiency.More importantly: proxy server is the Internet link grade gateway
The important security function of provided one kind, its work is mainly in the dialogue layer of open system interconnection model.
Based on this, the embodiment of the invention provides a kind of method and apparatus for acting on behalf of HTTP request by UDP, detailed processes
It is as follows:
Referring to Fig. 1, Fig. 1 is a kind of a kind of stream for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Journey schematic diagram, includes the following steps:
S101, receives the UDP request message that first network equipment is sent, and UDP request message includes UDP request header, uniformly
Resource identifier；
Specifically, UDP proxy server receives the UDP request message that first network equipment is sent, the UDP request message packet
Include UDP request header, uniform resource identifier.Here, UDP request header is prepared according to first network equipment to UDP agency service
HTTP domain name construction in the HTTP request that device is initiated, which is one of HTTP uniform resource identifier in HTTP request
Part, therefore the uniform resource identifier in UDP request message does not include HTTP domain name.Pass through initiate first network equipment
HTTP request is configured to UDP request message, to send UDP request to UDP proxy server, completes UDP and acts on behalf of HTTP
The process of request.
In addition, it is necessary to explanation, the first network equipment being previously mentioned in embodiments of the present invention and second network equipment,
It refers respectively to send the original sender of HTTP request and receives HTTP request recipient, for example, first network equipment can be with
It is client, second network equipment can be server end, for meeting all-network appointed condition, belong to of the invention real
The protection scope of example is applied, herein a different citing.
S102 parses UDP request header from UDP request message, identifies HTTP domain name, and according to HTTP domain name and uniformly
Resource identifier constructs HTTP request message, and UDP request header is constructed according to HTTP domain name, the destination of HTTP request message
Location is second network equipment；
Specifically, since the UDP request header in UDP request message is constructed by the HTTP domain name in first network equipment
, therefore parse the UDP request header, so that it may identify HTTP domain name corresponding to the UDP request header.In addition, since UDP is asked
Asking does not have HTTP domain name in the uniform resource identifier in message, therefore by the HTTP domain name identified and unified resource mark
To know symbol and constructs HTTP request message jointly, the HTTP request message constructed here is the HTTP request message of standard, meanwhile, it should
The destination address of HTTP request message is second network equipment.
S103 sends HTTP request message to second network equipment.
Specifically, HTTP request message is sent to second network equipment by UDP proxy server, due to the HTTP request
Message is to be constructed by HTTP domain name and uniform resource identifier, therefore the HTTP request message includes by HTTP domain name and system
The HTTP uniform resource identifier of one resource identifier composition, i.e., sending one to second network equipment includes HTTP unified resource
The request message of identifier, so as to complete the process for acting on behalf of forwarding HTTP request by UDP.
It should be noted that in the present embodiment, disappearing since a UDP request is only capable of the lesser request of transmission request text
Breath, it is therefore possible to use method agency's forwarding request response lesser HTTP request of text of the present embodiment.For example, if one
A UDP packet maxsize is 1.5KB, if the request text of HTTP request is greater than 1.5KB, just can not be acted on behalf of and be taken by UDP
Being engaged in device agency's forwarding request can be http response text dismantling at several if http response text is greater than 1.5KB
The response text of these 1.5KB can be numbered with serial number and be sent respectively to first network equipment by 1.5KB, UDP proxy server, the
One network is combined, and reads complete response text.
It can be seen that a kind of method for acting on behalf of HTTP request by UDP provided by the invention, passes through UDP proxy server
The UDP request message that first network equipment is sent first is received, is then disappeared according to the HTTP request that the UDP request message constructs standard
Breath, finally issues second network equipment for HTTP request message.This method for acting on behalf of forwarding HTTP request by UDP, avoids
The three-way handshake and DNS request of TCP, during effective solution is for request text lesser HTTP request, the three of TCP
Secondary shake hands causes DNS request during the problem of requesting low efficiency and HTTP request to be held as a hostage problem, improves request effect
Rate.
In embodiments of the present invention, after sending HTTP request message to second network equipment, HTTP is acted on behalf of by UDP and is asked
The method asked further include:
The http response message of second network equipment transmission is received, http response message includes http response text, HTTP
Response message is for responding HTTP request message；
Specifically, UDP proxy server receives the http response message that second network equipment is sent, the http response message
For responding the HTTP request message of UDP proxy server transmission.Then the http response message is handled, HTTP is rung
Answering message transformation is UDP response message, then UDP response message is sent to first network equipment, completes entire HTTP request
With the repeating process of response.
It is configured to the first UDP head response of parsing http response text, and sends the first UDP to first network equipment and rings
Message is answered, the first UDP response message includes the first UDP head response, http response text, so that first network equipment passes through parsing
First UDP head response, reads http response text, includes the information for reading http response text in the first UDP head response.
Here, the first UDP response message constructed in the present invention, it is transmitted when being to distinguish and be not received by response
The 2nd UDP response message difference, equally, the first UDP head response that constructs in the present invention, is to distinguish and do not receive
To the difference of the 2nd UDP head response constructed when response.If second network equipment has response, it is configured to parsing HTTP
The first UDP head response for responding text, responsive state code is inserted in the UDP head response.Then, it is sent to first network equipment
First UDP response message, the first UDP response message includes the first UDP head response, http response text, so that first network is set
It is standby to pass through the first UDP head response of parsing, http response text is read, includes for reading http response in the first UDP head response
The information of text.
Construction the first UDP head response, for example, the first UDP head response be by magic (1 byte), opcode (1 byte),
Compress (1 byte), total (1 byte), subidx (1 byte), status (1 byte), reserved1 (1 byte),
Reserved2 (1 byte), sequence (4 byte), bodylen (4 byte) are constituted, wherein magic is the meaning of identification, mark
Think, is term when defining agreement；Opcode is corresponding with request domain name, and proxy server selects business service according to opcode
The configuration domain name of device；Compress indicates content compression mode；Total indicates that the complete response can be divided into how many a UDP
Packet；Which response subidx expression is currently；Status inserts the HTTP status code of service server response；reserve1,
Reserve2 is reserved field.
In an optional embodiment of the present invention, if not receiving the transmission of second network equipment within a preset time
Http response message, or receive the HTTP error response message of second network equipment transmission, then construct the 2nd UDP response
Head, and to first network equipment send the 2nd UDP response message, the 2nd UDP response message include the 2nd UDP head response, second
UDP response message is for notifying first network equipment UDP request message to fail, so that first network equipment passes through parsing second
UDP head response reads the information of UDP request message failure.
Specifically, comprising for notifying the failure of first network equipment UDP request message in the 2nd UDP head response of construction
Information or receives the second network when the http response message for not receiving the transmission of second network equipment within a preset time
When the HTTP error response message that equipment is sent, so that it may directly send the response comprising UDP head response to first network equipment
Message, so that first network equipment reads the information of UDP request message failure by the 2nd UDP head response of parsing.
In embodiments of the present invention, UDP request header is parsed from UDP request message, identifies HTTP domain name, comprising:
UDP request header is parsed from UDP request message, identifies the requested service type of UDP request header；
According to the preconfigured domain name of requested service type, HTTP domain name is identified.
Specifically, UDP proxy server parses UDP request header from UDP request message, due to the UDP request header be by
HTTP domain name construction to be visited, it is possible to identify that HTTP domain name, detailed process first pass through the industry for identifying the request
Service type identifies HTTP domain name further according to the preconfigured domain name of requested service type.
By the lesser HTTP of UDP proxy requests in the present invention, HTTP request here is for specific scene ability
It uses, such as the specific transactions of a specific company, compressed by this UDP proxy server and acts on behalf of, an agency
Server only needs to act on behalf of several or defined how many different domain names, so 1 byte may be used herein
Opcode indicates a kind of type of service, first passes through the type of service that different domain names is compressed into 1 byte, then finds out this
Configuration domain name corresponding to type of service, the HTTP request of domain name and URI construction standard further according to configuration.
Referring to fig. 2, Fig. 2 is a kind of another kind for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Flow diagram includes the following steps:
S201 constructs UDP request header according to HTTP domain name to be visited in first network equipment；
Specifically, first network equipment constructs UDP request header according to its HTTP domain name to be visited, i.e., in UDP request header
Comprising HTTP domain name, UDP request header is constructed here primarily to being sent to UDP proxy server, only due to UDP proxy server
Identification UDP request message can be received, therefore HTTP request to be sent is forwarded by UDP agency, is realized quickly small-sized
The request of HTTP and response process.
Here, the UDP request header of construction, for example, UDP request header be by magic (1 byte), opcode (1 byte),
Compress (1 byte), reserved (1 byte), sequence (4 byte), bodylen (4 byte) are constituted；Wherein, magic
It is the meaning of identification, mark, is term when defining agreement；Opcode with request domain name it is corresponding, proxy server according to
Opcode selects the configuration domain name of service server；Compress indicates content compression mode；Reserved is reserved field；
Sequence is request identification, and client constructs and fill the field, and proxy server only needs will be in request
Sequence value inserts head response, convenient for the specific response of client identification；Bodylen indicates uniform resource identifier in request
Length, in response indicate response text length.
In addition, it is necessary to explanation, the first network equipment being previously mentioned in embodiments of the present invention and second network equipment,
It refers respectively to send the original sender of HTTP request and receives HTTP request recipient, for example, first network equipment can be with
It is client, second network equipment can be server end, for meeting all-network appointed condition, belong to of the invention real
The protection scope of example is applied, herein a different citing.
S202 sends UDP request message to UDP proxy server, and UDP request message includes UDP request header, unified resource
Identifier identifies HTTP domain name so that UDP proxy server parses UDP request header from UDP request message, and according to
HTTP domain name and uniform resource identifier construct HTTP request message, issue second network equipment.
Specifically, first network equipment sends UDP request message to UDP proxy server, UDP proxy server passes through place
The UDP request message is managed, and is configured to the HTTP request message of second network equipment of request, HTTP to be visited is asked in completion
The agency's forwarding asked.Here HTTP request is that the HTTP request of standard and first network equipment are waited for UDP proxy server
HTTP request is only forwarded by UDP proxy server here, has skipped the three-way handshake mistake of TCP by the HTTP request of initiation
Journey, while DNS request is also avoided, make to call request more efficient.
It can be seen that a kind of method that HTTP request is acted on behalf of by UDP provided by the invention, by being set according to first network
HTTP domain name to be visited constructs UDP request header in standby, and the UDP request including UDP request header, uniform resource identifier is disappeared
Breath issues UDP proxy server, handles the UDP request message by UDP proxy server, realizes that UDP acts on behalf of HTTP request
Purpose.This method for acting on behalf of forwarding HTTP request by UDP, avoids the three-way handshake and DNS request of TCP, effective to solve
It has determined for the problem that during the request lesser HTTP request of text, the three-way handshake of TCP causes to request low efficiency, and
DNS request is held as a hostage problem during HTTP request, improves request efficiency.
A kind of method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention further include:
The first UDP response message that UDP proxy server is sent is received, the first UDP response message is responded including the first UDP
Head, http response text, http response text is for responding HTTP request message；
Specifically, first network equipment receives the first UDP response message that UDP proxy server is sent, the first UDP is rung
Answer message primarily to response UDP request message, the first UDP response message include the first UDP head response, http response just
Text, http response text is for responding HTTP request message.Here, the first UDP response message that constructs in the present invention, be in order to
Distinguish and be not received by the difference of the 2nd UDP response message transmitted when response.Equally, first constructed in the present invention
UDP head response is the difference in order to distinguish and be not received by the 2nd UDP head response constructed when response.
The first UDP head response is parsed from the first UDP response message, http response text is read, in the first UDP head response
Including the information for reading http response text.
Specifically, first network equipment parses the first UDP head response from the first UDP response message, reads the first UDP and ring
Answering includes information for reading http response text in head, completes the repeating process of entire HTTP request and response.
In embodiments of the present invention, a kind of to be acted on behalf of by UDP after sending UDP request message to UDP proxy server
The method of HTTP request further include:
The 2nd UDP response message that UDP proxy server is sent is received, the 2nd UDP response message is responded including the 2nd UDP
Head, for the 2nd UDP response message for notifying first network equipment UDP request message to fail, the 2nd UDP head response is according to UDP
Proxy server does not receive the http response message of second network equipment transmission within a preset time or receives the second net
The HTTP error response message construction that network equipment is sent.
Specifically, if the HTTP that UDP proxy server does not receive the transmission of second network equipment within a preset time is rung
Message is answered, or receives the HTTP error response message of second network equipment transmission, first network equipment will receive UDP
The 2nd UDP response message that proxy server is sent, the 2nd UDP response message include the 2nd UDP head response, the 2nd UDP response
Message is for notifying first network equipment UDP request message to fail.
The 2nd UDP head response is parsed from the 2nd UDP response message, reads the information of UDP request message failure.
Due to including the information of UDP request message failure in the 2nd UDP head response, the 2nd UDP head response of parsing is just
The information of UDP request message failure can be read.
Referring to Fig. 3, Fig. 3 is a kind of basic flow for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Cheng Tu includes the following steps:
S301 constructs UDP request header.
Here, UDP request header is constructed according to HTTP domain name to be visited in first network equipment.
UDP request header and uniform resource identifier are issued UDP proxy server by S302.
What first network equipment was sent to UDP proxy server is UDP request message, and UDP proxy server could identify
The request is received, and UDP request message includes UDP request header, uniform resource identifier, so by UDP request header and unified money
Source identifier issues UDP proxy server.
S303, UDP proxy server receive UDP request message.
UDP proxy server receives the UDP request message that first network equipment is sent, including UDP request header, unified resource
Then identifier is handled the UDP request message.
S304 parses UDP request header.
Second network equipment parses UDP request header from UDP request message, identifies the type of service of the request.
S305 constructs HTTP request message and issues destination server.
According to the domain name that the business in UDP request header is configured, and with the uniform resource identifier got jointly come
HTTP request message is constructed, the HTTP request message constructed here is the HTTP request message of standard.By HTTP request message
It is sent to destination server, goal server i.e. second network equipment.
S306 reads http response message.
Http response message transmitted by destination server is read by UDP proxy server, which uses
In response HTTP request message.
S307 judges whether there is response.
Judge that second network equipment disappears within the preset time either with or without sending back to http response by UDP proxy server
Breath.
S308 constructs UDP head response if there is response, and responsive state code is inserted.
Here, the UDP head response of construction is the first UDP head response in the present invention, is to distinguish and be not received by
The UDP head response constructed when response.If there is response, then it is configured to the first UDP head response of parsing http response text,
And responsive state code is inserted in the UDP head response.
UDP head response and http response text are issued client by S309.
Here, client is the first network equipment that the present invention is previously mentioned, and UDP proxy server is sent out to first network equipment
UDP response message is sent, which includes UDP head response and http response text, and the http response text is for responding
HTTP request message, so that first network equipment reads http response text by the first UDP head response of parsing, the first UDP is rung
Answering includes information for reading the http response text after the first UDP head response in head.
S310 constructs UDP head response if not responding to, and notifies client error.
Equally, the 2nd UDP head response in the UDP head response constructed here the i.e. present invention.If not connecing within a preset time
The http response message of second network equipment transmission is received, or receives the HTTP error response that second network equipment is sent and disappears
Breath constructs the 2nd UDP head response, and sends the 2nd UDP response message to first network equipment, and the 2nd UDP response message includes
2nd UDP head response, the 2nd UDP response message is for notifying first network equipment UDP request message to fail, so that first network
Equipment reads the information of UDP request message failure by the 2nd UDP head response of parsing.
Referring to fig. 4, Fig. 4 is that a kind of framework for the method that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention shows
It is intended to；
As seen from Figure 4, for the HTTP request of the end PC APP, android system end APP or iOS system end APP,
It can be first converted into the form of UDP module, i.e. UDP request message, then sent out UDP request message by UDP connection
UDP proxy server is given, by the processing of UDP proxy server, then by TCP connection, issues corresponding service server.
Wherein, UDP proxy server can service the agency of multiple and different type services, only show in Fig. 4 two distinct types of
HTTP type of service determines the number of type of service according to actually required.It is this to be turned by UDP proxy server agency
The process for sending out HTTP request avoids the three-way handshake process of TCP connection, while without DNS request is passed through, greatly improving
Request efficiency.
Referring to Fig. 5, Fig. 5 is a kind of a kind of knot for the device that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Structure schematic diagram, comprising:
First receiving module 501, for receiving the UDP request message of first network equipment transmission, UDP request message includes
UDP request header, uniform resource identifier；
First processing module 502 identifies HTTP domain name, and root for parsing UDP request header from UDP request message
HTTP request message is constructed according to HTTP domain name and uniform resource identifier, UDP request header is constructed according to HTTP domain name, HTTP
The destination address of request message is second network equipment；
Here, the HTTP request that first processing module refers to that UDP proxy server processing first network equipment is sent disappears
Breath.
First sending module 503, for sending HTTP request message to second network equipment.
Here the first sending module refers to that UDP proxy server sends HTTP request message to second network equipment.
It should be noted that the first sending module only refers only to transmission relationship in logic in present apparatus embodiment,
The mutual transmission process for the port for physically meeting udp protocol is not implied that.Such as first sending module can be UDP agency clothes
Request message is issued second network equipment by business device, and response message can also be issued to first network equipment, and is not merely
The request message for meeting UDP request protocol is issued second network equipment or will meet the response message of UDP response protocol by finger
Issue one of second network equipment.
Further, the first receiving module 501, is also used to:
The http response message of second network equipment transmission is received, http response message includes http response text, HTTP
Response message is for responding HTTP request message；
Correspondingly, first processing module 502, is also used to be configured to the first UDP head response of parsing http response text；
Here, first processing module refers to that UDP proxy server handles the first UDP response that second network equipment is sent
Message.
First sending module 503, is also used to send the first UDP response message to first network equipment, and the first UDP response disappears
Breath includes the first UDP head response, http response text, so that first network equipment is read by the first UDP head response of parsing
Http response text includes the information for reading http response text in the first UDP head response.
Here the first sending module refers to that UDP proxy server sends the first UDP response to first network equipment and disappears
Breath.
Further, first processing module 501 are also used to:
If not receiving the http response message of second network equipment transmission within a preset time or receiving the second net
The HTTP error response message that network equipment is sent constructs the 2nd UDP head response；
Here, first processing module refers to that UDP proxy server handles the 2nd UDP response that second network equipment is sent
Message.
First sending module is also used to send the 2nd UDP response message, the 2nd UDP response message to first network equipment
Including the 2nd UDP head response, the 2nd UDP response message is for notifying first network equipment UDP request message to fail, so that first
The network equipment reads the information of UDP request message failure by the 2nd UDP head response of parsing.
Here the first sending module refers to that UDP proxy server sends the 2nd UDP response to first network equipment and disappears
Breath.
Further, first processing module 502 are also used to:
UDP request header is parsed from UDP request message, identifies the requested service type of UDP request header；
According to the preconfigured domain name of requested service type, HTTP domain name is identified.
Referring to Fig. 6, Fig. 6 is a kind of another kind for the device that HTTP request is acted on behalf of by UDP provided in an embodiment of the present invention
Structural schematic diagram, comprising:
Second processing module 601, for constructing UDP request header according to the HTTP domain name in first network equipment；
Here, Second processing module refers to that first network equipment handles HTTP request message to be sent.
Second sending module 602, for sending UDP request message to UDP proxy server, UDP request message includes UDP
Request header, uniform resource identifier identify so that UDP proxy server parses UDP request header from UDP request message
HTTP domain name, and HTTP request message is constructed according to HTTP domain name and uniform resource identifier, issue second network equipment.
In the present embodiment, a kind of device for acting on behalf of HTTP request by UDP further include:
Second receiving module 603, for receiving the first UDP response message of UDP proxy server transmission, the first UDP is rung
Answering message includes the first UDP head response, http response text, and http response text is for responding HTTP request message；
Correspondingly, Second processing module 601, is also used to parse the first UDP head response from the first UDP response message, read
Http response text is taken, includes the information for reading http response text in the first UDP head response.
Here, Second processing module refers to that first network equipment processing UDP proxy server sends the first UDP response and disappears
Breath.
Further, the second receiving module 603, is also used to:
The 2nd UDP response message that UDP proxy server is sent is received, the 2nd UDP response message is responded including the 2nd UDP
Head, for the 2nd UDP response message for notifying first network equipment UDP request message to fail, the 2nd UDP head response is according to UDP
Proxy server does not receive the http response message of second network equipment transmission within a preset time or receives the second net
The HTTP error response message construction that network equipment is sent；
Correspondingly, Second processing module 601, is also used to parse the 2nd UDP head response from the 2nd UDP response message, read
Take the information of UDP request message failure.
Here, Second processing module refers to that first network equipment processing UDP proxy server sends the 2nd UDP response and disappears
Breath.
It can be seen that a kind of method and apparatus for acting on behalf of HTTP request by UDP provided by the invention, are acted on behalf of by UDP
Server first receives the UDP request message of first network equipment transmission, and the HTTP of standard is then constructed according to the UDP request message
HTTP request message is finally issued second network equipment by request message.This side that forwarding HTTP request is acted on behalf of by UDP
Method avoids the three-way handshake and DNS request of TCP, since the message format of existing DNS request is disclosed specification, and
It must be that Local dns server end is sent to from user terminal；If being that privately owned ciphertext disappears using method of the invention
It ceases, and message is sent to the private services IP configured in client, not the IP of Local DNS, so not robbed by Local DNS
Hold DNS query request.Through the embodiment of the present invention, effective solution is for request text lesser HTTP request process
In, the three-way handshake of TCP causes DNS request during the problem of requesting low efficiency and HTTP request to be held as a hostage problem, improves
Request efficiency.
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 system 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 illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (14)
1. a kind of method for acting on behalf of HTTP request by UDP, which is characterized in that the HTTP request is UDP proxy server generation
Client forwarding is managed, the HTTP request includes HTTP domain name, which comprises
UDP proxy server receives the UDP request message that client is sent, and the UDP request message includes UDP request header, system
One resource identifier；
The UDP request header is parsed from the UDP request message, identifies the HTTP domain name, and according to the domain HTTP
Name and the uniform resource identifier construct HTTP request message, and the UDP request header is constructed according to the HTTP domain name,
The destination address of the HTTP request message is second network equipment；
The HTTP request message is sent to second network equipment.
2. the method according to claim 1, wherein described ask to second network equipment transmission HTTP
After seeking message, the method further include:
The http response message that second network equipment is sent is received, the http response message includes http response text,
The http response message is for responding the HTTP request message；
It is configured to parse the first UDP head response of the http response text, and sends the first UDP response to the client
Message, the first UDP response message includes the first UDP head response, the http response text, so that the client
By parsing the first UDP head response, the http response text is read, includes for reading in the first UDP head response
Take the information of the http response text.
3. the method according to claim 1, wherein described ask to second network equipment transmission HTTP
After seeking message, the method further include:
If not receiving http response message that second network equipment is sent within a preset time or receiving described the
The HTTP error response message that two network equipments are sent then constructs the 2nd UDP head response, and sends second to the client
UDP response message, the 2nd UDP response message include the 2nd UDP head response, and the 2nd UDP response message is used for
UDP request message described in the client is notified to fail, so that the client is read by parsing the 2nd UDP head response
Take the information of the UDP request message failure.
4. described in any item methods according to claim 1~3, which is characterized in that described to be parsed from the UDP request message
The UDP request header, identifies HTTP domain name, comprising:
The UDP request header is parsed from the UDP request message, identifies the requested service type of the UDP request header；
According to the preconfigured domain name of requested service type, HTTP domain name is identified.
5. a kind of method for acting on behalf of HTTP request by UDP, which is characterized in that the HTTP request is UDP proxy server generation
Client forwarding is managed, the HTTP request includes HTTP domain name, which comprises
Client constructs UDP request header according to the HTTP domain name to be visited in the client；
UDP request message is sent to UDP proxy server, the UDP request message includes the UDP request header, unified resource
Identifier identifies described so that the UDP proxy server parses the UDP request header from the UDP request message
HTTP domain name, and HTTP request message is constructed according to the HTTP domain name and the uniform resource identifier, issue the second network
Equipment.
6. according to the method described in claim 5, it is characterized in that, it is described to UDP proxy server send UDP request message it
Afterwards, the method further include:
The first UDP response message that the UDP proxy server is sent is received, the first UDP response message includes the first UDP
Head response, http response text, the http response text is for responding the HTTP request message；
The first UDP head response is parsed from the first UDP response message, reads the http response text, described
It include the information for reading the http response text in one UDP head response.
7. according to the method described in claim 5, it is characterized in that, it is described to UDP proxy server send UDP request message it
Afterwards, the method further include:
The 2nd UDP response message that the UDP proxy server is sent is received, the 2nd UDP response message includes the 2nd UDP
Head response, for notifying UDP request message described in the client to fail, the 2nd UDP is rung the 2nd UDP response message
Answering head is the http response for not receiving second network equipment within a preset time according to the UDP proxy server and sending
Message receives the HTTP error response message construction that second network equipment is sent；
The 2nd UDP head response is parsed from the 2nd UDP response message, reads the letter of the UDP request message failure
Breath.
8. a kind of device for acting on behalf of HTTP request by UDP, which is characterized in that the HTTP request is UDP proxy server generation
Client forwarding is managed, the HTTP request includes HTTP domain name, and described device includes:
First receiving module receives the UDP request message that client is sent, the UDP request message for UDP proxy server
Including UDP request header, uniform resource identifier；
First processing module identifies the HTTP domain name for parsing the UDP request header from the UDP request message,
And HTTP request message is constructed according to the HTTP domain name and the uniform resource identifier, the UDP request header is according to institute
HTTP domain name construction is stated, the destination address of the HTTP request message is second network equipment；
First sending module, for sending the HTTP request message to second network equipment.
9. device according to claim 8, which is characterized in that first receiving module is also used to:
The http response message that second network equipment is sent is received, the http response message includes http response text,
The http response message is for responding the HTTP request message；
Correspondingly, the first processing module, is also used to be configured to parse the first UDP response of the http response text
Head；
First sending module, is also used to send the first UDP response message to the client, and the first UDP response disappears
Breath includes the first UDP head response, the http response text, so that the client is rung by parsing the first UDP
Head is answered, the http response text is read, includes the letter for reading the http response text in the first UDP head response
Breath.
10. device according to claim 8, which is characterized in that the first processing module is also used to:
If not receiving http response message that second network equipment is sent within a preset time or receiving described the
The HTTP error response message that two network equipments are sent constructs the 2nd UDP head response；
Correspondingly, first sending module, is also used to send the 2nd UDP response message, the 2nd UDP to the client
Response message includes the 2nd UDP head response, and the 2nd UDP response message is for notifying UDP described in the client to ask
Message failure is sought, so that the client reads the UDP request message failure by parsing the 2nd UDP head response
Information.
11. according to the described in any item devices of claim 8~10, which is characterized in that the first processing module is also used to:
The UDP request header is parsed from the UDP request message, identifies the requested service type of the UDP request header；
According to the preconfigured domain name of requested service type, HTTP domain name is identified.
12. a kind of device for acting on behalf of HTTP request by UDP, which is characterized in that the HTTP request is UDP proxy server generation
Client forwarding is managed, the HTTP request includes HTTP domain name, and described device includes:
Second processing module constructs UDP request header according to the HTTP domain name to be visited in the client for client；
Second sending module, for sending UDP request message to UDP proxy server, the UDP request message includes described
UDP request header, uniform resource identifier, so that the UDP proxy server parses the UDP from the UDP request message
Request header identifies the HTTP domain name, and constructs HTTP request according to the HTTP domain name and the uniform resource identifier
Message issues second network equipment.
13. device according to claim 12, which is characterized in that described device further include:
Second receiving module, the first UDP response message sent for receiving the UDP proxy server, the first UDP are rung
Answering message includes the first UDP head response, http response text, and the http response text disappears for responding the HTTP request
Breath；
Correspondingly, the Second processing module, is also used to parse the first UDP response from the first UDP response message
Head, reads the http response text, includes the letter for reading the http response text in the first UDP head response
Breath.
14. device according to claim 12, which is characterized in that the second receiving module is also used to:
The 2nd UDP response message that the UDP proxy server is sent is received, the 2nd UDP response message includes the 2nd UDP
Head response, for notifying UDP request message described in the client to fail, the 2nd UDP is rung the 2nd UDP response message
Answering head is the http response for not receiving second network equipment within a preset time according to the UDP proxy server and sending
Message receives the HTTP error response message construction that second network equipment is sent；
Correspondingly, the Second processing module, is also used to parse the 2nd UDP response from the 2nd UDP response message
Head reads the information of the UDP request message failure.
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| CN101981876A (en) * | 2008-04-02 | 2011-02-23 | 株式会社Ntt都科摩 | Data communication terminal, proxy device, data communication system, and data communication method |
| CN102065145A (en) * | 2010-12-31 | 2011-05-18 | 华为技术有限公司 | Information issuing method, device and system |
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