CN112995291B - HTTP message collection method based on proxy, terminal equipment and storage medium - Google Patents

HTTP message collection method based on proxy, terminal equipment and storage medium Download PDF

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CN112995291B
CN112995291B CN202110158253.1A CN202110158253A CN112995291B CN 112995291 B CN112995291 B CN 112995291B CN 202110158253 A CN202110158253 A CN 202110158253A CN 112995291 B CN112995291 B CN 112995291B
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http
message
request message
proxy
module
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CN112995291A (en
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赖子琪
王博
朱振水
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Xiamen Meiya Pico Information Co Ltd
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Xiamen Meiya Pico Information Co Ltd
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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]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/95—Retrieval from the web
    • G06F16/951—Indexing; Web crawling techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
    • H04L63/1441—Countermeasures against malicious traffic
    • H04L63/145—Countermeasures against malicious traffic the attack involving the propagation of malware through the network, e.g. viruses, trojans or worms
    • 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
    • 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
    • H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2216/00—Indexing scheme relating to additional aspects of information retrieval not explicitly covered by G06F16/00 and subgroups
    • G06F2216/03—Data mining

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
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  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

The invention relates to a HTTP message acquisition method based on proxy, a terminal device and a storage medium, wherein the method comprises the following steps: s1: an HTTP message proxy module is constructed, and an HTTP request message sent by a crawler module is received through the HTTP message proxy module; s2: judging whether the HTTP message library has the same HTTP request message as the received HTTP request message, if so, entering S4; otherwise, entering S3; s3: the HTTP request message is forwarded to the corresponding crawling target server, the HTTP response message is received, the HTTP response message is forwarded to the crawler module, meanwhile, the HTTP request message and the HTTP response message are stored in an HTTP message library, and the association relation is recorded; s4: and acquiring an HTTP response message related to the HTTP request message from the HTTP message library, and forwarding the HTTP response message to the crawler module. The invention avoids the reacquisition of the crawler module not by the content update of the crawling target server, reduces the burden of the crawling target server and avoids the possible network virtual property loss.

Description

HTTP message collection method based on proxy, terminal equipment and storage medium
Technical Field
The invention relates to the technical field of internet, in particular to an HTTP message acquisition method based on an agent, a terminal device and a storage medium.
Background
The crawler technology has been widely used in the collection of internet information since birth, and some popular sites of the internet publicly release a large amount of open source data and allow a crawler to access to a limited degree.
The traditional crawler analyzes a response body through regular or Xpath and other rule bases after downloading an HTTP response message, only focuses on the content conforming to the acquisition rule, abandons the content of the irregular rule, needs to re-acquire the web page acquired once when the rule is wrong or the requirement is changed, the operation can increase the burden of the acquired site server, and the network virtual property loss of an acquisition party can be caused when the acquired content needs to be consumed when the network virtual property is accessed. Such recapture is unnecessary when the content of the captured web page does not change or the capture requirements are not actually focused on the changing content.
Disclosure of Invention
In order to solve the above problem, the present invention provides an HTTP message collection method based on an agent, a terminal device, and a storage medium.
The specific scheme is as follows:
an HTTP message collection method based on an agent comprises the following steps:
s1: an HTTP message proxy module is constructed, and an HTTP request message sent by a crawler module is received through the HTTP message proxy module;
s2: after receiving the HTTP request message, the HTTP message proxy module judges whether the HTTP message library has the same HTTP request message as the received HTTP request message, if so, the S4 is carried out; otherwise, entering S3;
s3: the HTTP request message is forwarded to the corresponding crawling target server, the HTTP response message from the crawling target server is received, the HTTP response message is forwarded to the crawler module, meanwhile, the HTTP request message and the HTTP response message are stored in an HTTP message base, and the association relation between the HTTP request message and the HTTP response message is recorded;
s4: and acquiring an HTTP response message associated with the HTTP request message from the HTTP message library, and forwarding the HTTP response message to the crawler module.
Further, when the transmission adopts an HTTPS protocol, the HTTP request message sent by the crawler module is encrypted by adopting a first TLS certificate; when the HTTP message proxy module forwards the HTTP request message, firstly, the HTTP message proxy module decrypts the HTTP request message through the first TLS certificate, then encrypts the HTTP request message through the second TLS certificate, and forwards the encrypted HTTP request message to the crawling target server.
Further, when the transmission adopts an HTTPS protocol, the first TLS certificate is provided by a TLS certificate issuing mechanism corresponding to the HTTP message proxy module, and the second TLS certificate is provided by a TLS certificate issuing mechanism corresponding to the crawler target server.
Further, after receiving the HTTP request message, the HTTP message proxy module first parses the HTTP request message into an HTTP protocol standard format, and then temporarily stores the HTTP request message in the memory; after the HTTP message proxy module receives the HTTP response message from the crawling target server, the HTTP response message is firstly analyzed into an HTTP protocol standard format, and then the HTTP response message and the HTTP request message temporarily stored in the memory are stored in an HTTP message base together.
Further, if one HTTP request message obtains a plurality of HTTP response messages from the crawling target server, the sequence of the plurality of HTTP response messages is stored in the HTTP message library.
And further, data mining and analysis processing are carried out on all the messages stored in the HTTP message library to obtain the association relation among different messages, and other HTTP response messages having the association relation with the HTTP response messages to be forwarded are sent to the crawler module together.
Furthermore, when the connection between the HTTP message agent module and the crawling target server is interrupted, the HTTP connection between the HTTP message agent module and the crawler module is disconnected after the information interrupted by the network of the crawling target server is sent to the crawler module.
An HTTP message collection terminal device based on an agent includes a processor, a memory, and a computer program stored in the memory and operable on the processor, where the processor implements the steps of the method described above in the embodiment of the present invention when executing the computer program.
A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the method as described above for an embodiment of the invention.
By adopting the technical scheme, the crawled HTTP response message is stored in the HTTP message library, so that the phenomenon that the crawler module re-acquires the content of the crawled target server instead of updating is avoided, the burden of the crawled target server is reduced, and the possible network virtual property loss is also avoided.
Drawings
Fig. 1 is a flowchart of a first embodiment of the invention.
Detailed Description
To further illustrate the various embodiments, the present invention provides the accompanying figures. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. Those skilled in the art will appreciate still other possible embodiments and advantages of the present invention with reference to these figures.
The invention will now be further described with reference to the accompanying drawings and detailed description.
The first embodiment is as follows:
the embodiment of the invention provides a proxy-based HTTP message acquisition method, as shown in FIG. 1, the method comprises the following steps:
s1: and constructing an HTTP message proxy module, and receiving the HTTP request message sent by the crawler module through the HTTP message proxy module.
The HTTP message agent module provides the agent service of the HTTP, HTTPS or SOCKS and other protocols for the crawler module with the configurable agent, and the crawler module without the configurable agent can perform global agent on the system.
S2: after receiving the HTTP request message, the HTTP message agent module judges whether the HTTP message library has the same HTTP request message as the received HTTP request message, if so, the HTTP message agent module enters S4; otherwise, go to S3.
When the HTTP request message is transmitted by adopting an HTTPS protocol, the crawler module provides TLS protocol encryption service for the HTTP request message by adopting a TLS certificate issuing mechanism corresponding to the HTTP message proxy module when sending the HTTP request message, and a first TLS certificate is generated. The common HTTP protocol has no encryption process.
The method for judging whether the HTTP request message library has the same HTTP request message as the received HTTP request message comprises the following steps: the received HTTP request message is parsed into an HTTP protocol standard format and then matched with the HTTP request message in the HTTP message library, and a specific matching rule may be set by a person skilled in the art according to an actual application, which is not limited herein. It should be noted that the request header and the request body may adopt a looser matching rule for some special sites, and ignore the difference that does not affect the final response content.
S3: and forwarding the HTTP request message to a corresponding crawling target server, receiving an HTTP response message from the crawling target server, forwarding the HTTP response message to a crawler module, storing the HTTP request message and the HTTP response message into an HTTP message library, and recording the association relationship between the HTTP request message and the HTTP response message.
When the HTTP request message is transmitted by adopting an HTTPS protocol, the HTTP message proxy module firstly decrypts the received HTTP request message by adopting a first TLS certificate, then encrypts the HTTP request message by a second TLS certificate provided by a TLS certificate issuing mechanism corresponding to the crawler target server, and forwards the encrypted HTTP request message to the corresponding crawling target server.
After receiving the HTTP request message, the HTTP message proxy module first parses the HTTP request message into an HTTP protocol standard format, and then temporarily stores the HTTP request message in the memory. After the HTTP message proxy module receives the HTTP response message from the crawling target server, the HTTP response message is firstly analyzed into an HTTP protocol standard format and then stored into an HTTP message library together with the HTTP request message temporarily stored in the memory.
Further, if the HTTP response message is transmitted using the HTTPs protocol, the HTTP response message is decrypted using the second TLS certificate, and then parsed into the HTTP protocol standard format.
Further, if one HTTP request message obtains a plurality of HTTP response messages from the crawling target server, the sequence of the plurality of HTTP response messages is stored in the HTTP message library.
Furthermore, data mining and analysis processing can be performed on all messages stored in the HTTP message library to obtain the association relationship among different messages, and other HTTP response messages having the association relationship with the HTTP response message to be forwarded are sent to the crawler module together.
When the connection between the HTTP message agent module and the crawling target server is interrupted, the corresponding HTTP response message cannot be acquired, and therefore the HTTP connection between the HTTP message agent module and the crawling target server is disconnected after the information interrupted by the crawling target server network is sent to the crawler module.
S4: and acquiring an HTTP response message associated with the HTTP request message from the HTTP message library, and forwarding the HTTP response message to the crawler module.
When the HTTP response packet is forwarded to the crawler module, the HTTP response packet still needs to be encrypted by the first TLS certificate.
According to the HTTP message received and sent by the proxy crawler module in the application layer, the crawled HTTP response message is stored in the HTTP message library, so that the crawler module is prevented from re-acquiring the content of the crawled target server which is not updated (the crawled target server is not required to be actually accessed), the burden of the crawled target server is reduced, and the possible network virtual property loss is avoided.
By adopting the method in the embodiment, the crawler module can continue to use the traditional logic to collect data, and can not pay attention to the data required by the collection requirement any more, but only pay attention to the data such as URL, token, verification code and the like required by the continuous promotion of the crawler collection service. The data required by the acquisition requirement can be directly acquired by analyzing and data mining the HTTP message stored in the HTTP message library through the data mining module.
The second embodiment:
the invention also provides proxy-based HTTP message acquisition terminal equipment, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor executes the computer program to realize the steps of the method embodiment of the first embodiment of the invention.
Further, as an executable scheme, the HTTP message collection terminal device based on the proxy may be a computing device such as a desktop computer, a notebook, a palm computer, and a cloud server. The proxy-based HTTP message collection terminal device may include, but is not limited to, a processor and a memory. It is understood by those skilled in the art that the above-mentioned composition structure of the proxy-based HTTP message collection terminal device is only an example of the proxy-based HTTP message collection terminal device, and does not constitute a limitation of the proxy-based HTTP message collection terminal device, and may include more or less components than the above, or combine some components, or different components, for example, the proxy-based HTTP message collection terminal device may further include an input/output device, a network access device, a bus, and the like, which is not limited in this embodiment of the present invention.
Further, as an executable solution, the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, and the like. The general processor may be a microprocessor or the processor may be any conventional processor, and the processor is a control center of the proxy-based HTTP message collection terminal device, and various interfaces and lines are used to connect various parts of the whole proxy-based HTTP message collection terminal device.
The memory can be used for storing the computer program and/or the module, and the processor can realize various functions of the proxy-based HTTP message collection terminal device by running or executing the computer program and/or the module stored in the memory and calling the data stored in the memory. The memory can mainly comprise a program storage area and a data storage area, wherein the program storage area can store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the mobile phone, and the like. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The invention also provides a computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, carries out the steps of the above-mentioned method of an embodiment of the invention.
The module/unit integrated with the proxy-based HTTP message collection terminal device may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments described above may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), software distribution medium, and the like.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. An HTTP message collection method based on proxy is characterized by comprising the following steps:
s1: an HTTP message proxy module is constructed, and an HTTP request message sent by a crawler module is received through the HTTP message proxy module;
s2: after receiving the HTTP request message, the HTTP message proxy module judges whether the HTTP message library has the same HTTP request message as the received HTTP request message, if so, the S4 is carried out; otherwise, entering S3;
s3: the HTTP request message is forwarded to a corresponding crawling target server, an HTTP response message from the crawling target server is received, the HTTP response message is forwarded to a crawler module, and meanwhile the HTTP request message and the HTTP response message are stored in an HTTP message library and the association relation between the HTTP request message and the HTTP response message is recorded;
s4: acquiring an HTTP response message related to the HTTP request message from the HTTP message library, and forwarding the HTTP response message to the crawler module;
when the transmission adopts an HTTPS protocol, encrypting an HTTP request message sent by the crawler module by adopting a first TLS certificate; when the HTTP message proxy module forwards the HTTP request message, firstly decrypting the HTTP request message through the first TLS certificate, then encrypting the HTTP request message through the second TLS certificate, and forwarding the encrypted HTTP request message to the crawling target server; the first TLS certificate is provided through a TLS certificate issuing mechanism corresponding to the HTTP message proxy module, and the second TLS certificate is provided through a TLS certificate issuing mechanism corresponding to the crawler target server.
2. The proxy-based HTTP message collection method of claim 1, wherein: after receiving the HTTP request message, the HTTP message proxy module firstly analyzes the HTTP request message into an HTTP protocol standard format and then temporarily stores the HTTP request message in an internal memory; after the HTTP message proxy module receives the HTTP response message from the crawling target server, the HTTP response message is firstly analyzed into an HTTP protocol standard format, and then the HTTP response message and the HTTP request message temporarily stored in the memory are stored in an HTTP message base together.
3. The proxy-based HTTP message collection method of claim 1, wherein: and if one HTTP request message acquires a plurality of HTTP response messages from the crawling target server, storing the sequence of the plurality of HTTP response messages in the HTTP response library.
4. The proxy-based HTTP message collection method of claim 1, wherein: and the method also comprises the steps of carrying out data mining and analysis processing on all messages stored in the HTTP message library to obtain the association relation among different messages, and sending other HTTP response messages which have the association relation with the HTTP response messages to be forwarded to the crawler module together.
5. The proxy-based HTTP message collection method of claim 1, wherein: when the connection between the HTTP message agent module and the crawling target server is interrupted, the HTTP message agent module sends information interrupted by the crawling target server network to the crawler module, and then the HTTP message agent module is disconnected from the crawler module.
6. An HTTP message acquisition terminal device based on proxy is characterized in that: comprising a processor, a memory and a computer program stored in said memory and running on said processor, said processor implementing the steps of the method according to any one of claims 1 to 5 when executing said computer program.
7. A computer-readable storage medium storing a computer program, the computer program characterized in that: the computer program realizing the steps of the method as claimed in any one of claims 1 to 5 when executed by a processor.
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