WO2017000761A1 - Method and apparatus for extracting feature information of terminal device - Google Patents

Abstract

Provided are a method and apparatus for extracting feature information of a terminal device, comprising: according to feature information of a terminal device and a user agent (UA) string corresponding to each piece of the feature information, constructing a UA feature library file identifying a mapping relationship between the feature information and the UA string; collecting a request packet transmitted by a first terminal device, and acquiring a first UA string of the first terminal device from the request packet; and finding, according to the first UA string, first feature information corresponding to the first UA string from the UA feature library file, and setting the found first feature information corresponding to the first UA string as the feature information of the first terminal device. The method in an embodiment of the present invention realizes accurate extraction of the feature information from the terminal device.

Description

Method and device for extracting feature information of terminal equipment Technical field

This document relates to, but is not limited to, the field of communication technologies, and in particular, to a method and an apparatus for extracting feature information of a terminal device.

Background technique

With the rapid development of mobile communication technologies and business applications, a large number of terminal equipment manufacturers have emerged at home and abroad, and the operating systems of terminal equipment and terminal equipment are also undergoing rapid development.

For the operator, it is possible to grasp the characteristic information of the terminal devices in the communication network, including: the information of the terminal device and the operating system, on the one hand, the customer information can be better understood, and the network service can be optimized; on the other hand, the collection can be The market share of each type of terminal equipment and operating system is better for product promotion. However, the technology for extracting information of the terminal device and the operating system in the related art is not perfect, and the information of the terminal device and the operating system cannot be accurately extracted.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a method and a device for extracting feature information of a terminal device, which can accurately extract terminal device information and better optimize network services.

An embodiment of the present invention provides a method for extracting feature information of a terminal device, including:

Constructing, according to the feature information of the terminal device and the user agent UA string corresponding to each feature information, a UA feature library file that identifies a mapping relationship between the feature information and the UA string;

Collecting a request message sent by the first terminal device, and acquiring a first UA character string of the first terminal device from the request message;

And searching for the first feature information corresponding to the first UA string from the UA feature library file according to the first UA string, to obtain feature information of the first terminal device.

Optionally, the feature information of the terminal device includes feature information respectively obtained from multiple dimensions;

The plurality of dimensions include at least a terminal device system, a terminal device manufacturer, and a terminal device model One of them.

Optionally, the request message includes: a hypertext transfer protocol HTTP message.

Optionally, the searching, by the UA signature file, the first feature information corresponding to the first UA string includes:

And searching, by the first UA string, the first feature information corresponding to the first UA string from the UA feature library file by using a multi-pattern matching AC algorithm.

Optionally, the extracting method further includes:

Obtaining a length of each of the first feature information if the first UA string corresponds to two or more first feature information and each of the first feature information belongs to the same dimension;

The first feature information having the longest length is selected as the feature information of the first terminal device.

An embodiment of the present invention further provides an apparatus for extracting feature information of a terminal device, including:

a building module, configured to: according to the feature information of the terminal device and the user agent UA string corresponding to each feature information, construct a UA feature library file that identifies a mapping relationship between the feature information and the UA string;

The acquiring module is configured to collect the request packet sent by the first terminal device, and obtain the first UA string of the first terminal device from the request packet;

a determining module, configured to search, according to the first UA string, the first feature information corresponding to the first UA string from the UA feature library file, and to find the first UA string corresponding to the first UA string The first feature information is used as feature information of the first terminal device.

Optionally, the feature information of the terminal device includes feature information respectively obtained from multiple dimensions;

The plurality of dimensions includes at least one of a terminal device system, a terminal device manufacturer, and a terminal device model.

Optionally, the collection module is configured to:

The Hypertext Transfer Protocol (HTTP) message sent by the first terminal device is collected, and the HTTP message is used as the request message, and the first UA string of the first terminal device is obtained from the HTTP message.

Optionally, the determining module is configured to:

And searching, by the first UA string, the first feature information corresponding to the first UA string from the UA feature library file by using a multi-pattern matching AC algorithm.

Optionally, the extracting device further includes:

Obtaining, if the first UA string corresponds to two or more first feature information, and each of the first feature information belongs to the same dimension, obtaining the length of each of the first feature information ;

The information determining module is configured to select the first feature information having the longest length as the feature information of the first terminal device.

Compared with the related art, the technical solution provided by the embodiment of the present invention includes: constructing a UA feature library file that defines a mapping relationship between the feature information of the terminal device and the UA string; and the UA character to be analyzed according to the first terminal device. The string searches for the matching first feature information from the UA signature file to obtain the feature information of the first terminal device. The method of the embodiment of the present invention obtains the feature information of the terminal device by parsing the UA string, and implements the feature of the terminal device. Accurate extraction of information.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a flowchart showing a method for extracting feature information of a terminal device according to an embodiment of the present invention;

2 is a schematic diagram showing the structure of a goto table of an AC algorithm;

3 is a schematic structural diagram of another goto table of an AC algorithm according to an embodiment of the present invention;

4 is a flowchart of constructing an AC feature library file in a method for extracting feature information of a terminal device according to an embodiment of the present invention;

FIG. 5 is a flowchart of extracting feature information in a method for extracting feature information of a terminal device according to an embodiment of the present invention;

FIG. 6 is a block diagram showing the structure of an apparatus for extracting feature information of a terminal device according to an embodiment of the present invention.

Embodiments of the invention

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that In the case of no conflict, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other.

The embodiment of the present invention provides a method and a device for extracting feature information of a terminal device, in which the operator cannot accurately obtain the feature information of the terminal device, and firstly constructs the feature information of the terminal device and the user agent (UA, The UA signature library file of the mapping relationship between the strings of the user agent, and the first feature information of the first terminal device is obtained by searching the first feature information from the UA signature database file according to the UA string to be analyzed of the first terminal device. Feature information; the extraction method obtains the feature information of the terminal device by parsing the UA string, and effectively solves the requirement of the operator to acquire the feature information of the terminal device.

As shown in FIG. 1 , an embodiment of the present invention provides a method for extracting feature information of a terminal device, including:

Step 11: Construct, according to the feature information of the terminal device and the user agent (UA, User Agent) string corresponding to each feature information, a UA feature library file that has a mapping relationship between the feature information and the UA string;

It should be noted that the UA feature library file that constructs the mapping relationship between the feature information and the UA string can be constructed by using the feature library in the related art; the method for constructing the feature library file is a common technical means for those skilled in the art. I will not repeat them here.

Step 12: Acquire a request packet sent by the first terminal device, and obtain a first UA string of the first terminal device from the request packet.

Step 13: Search for the first feature information corresponding to the first UA string from the UA signature file according to the first UA string, and use the first feature information corresponding to the first UA string as the first terminal device. Characteristic information.

User Agent (UA) is a part of the HTTP protocol and belongs to one of the components of the header domain. Its information includes hardware platform, system software, application software, and user personal preferences. For example, User-Agent includes: AppStore. /2.0iOS/7.1.2model/iPhone3, 1build/11D257(4;dt:27), through UA, can accurately extract the information of the terminal device. The parameter types included in the UA include: terminal system platform, terminal product model, user application, and so on. There may be only one or more types; for example, AppStore/2.0 is user application information, and iOS/7.1.2 is a terminal system platform. And version information, iPhone3 is user terminal information, and the like.

In the embodiment of the present invention, the feature information of the terminal device is information that can identify the terminal device, such as a serial number, a name, and the like of the feature information. And each feature information has a corresponding UA string, which is a feature string indicating its feature information. The UA feature library file stores the UA string and the corresponding feature information in a one-to-one correspondence, which facilitates the call recognition of the subsequent steps.

Optionally, the request message (which may be a data domain message) of the collected first terminal device is obtained in step 12, and the first UA string included in the request message is obtained, so that, according to the first UA string, The first feature information is obtained from the UA signature file, and the first feature information is the feature information of the first terminal device.

Optionally, in the method of the embodiment of the present invention, in order to comprehensively represent the feature information of the terminal device, the feature information of the terminal device includes feature information respectively obtained from multiple dimensions;

The plurality of dimensions includes at least one of a terminal device system, a terminal device manufacturer, and a terminal device model. In the embodiment of the present invention, when only one of the terminal device system, the terminal device manufacturer, and the terminal device model is included, acquiring the feature information from one dimension is also an optional embodiment of the present invention.

The terminal device system generally includes the version number of the terminal system, and the terminal device manufacturer generally includes the name of the terminal device manufacturer, and the terminal device model generally includes the model number of the terminal device.

Optionally, in the foregoing embodiment of the present invention, step 12 includes:

Step 121: Acquire a Hypertext Transfer Protocol (HTTP) packet sent by the first terminal device, and obtain a first UA string of the first terminal device from the HTTP packet.

In the embodiment of the present invention, the UA is a part of the HTTP protocol, and the embodiment of the present invention only collects the HTTP packet sent by the first terminal device, and the HTTP packet (for example, the request for the HTTP message (REQ) message) The UA string is obtained by the first UA string, and the UA string includes system software, hardware platform, system software, application software, and/or user personal preference of the first terminal device.

It should be noted that, in relation to the existing technology, the embodiment of the present invention obtains feature information according to the UA string in HTTP, which is more accurate than the related technology.

Optionally, in the foregoing embodiment of the present invention, step 13 includes:

Step 131: Apply a multi-pattern matching (AC) algorithm from the first UA string to the UA feature. The first feature information corresponding to the first UA string is searched in the library file.

In an optional embodiment of the present invention, the lightweight multi-mode matching engine based on the AC algorithm identifies the UA string and obtains the recognition result of the related device information (ie, the first feature information). Optionally, the AC algorithm is a classic multi-pattern matching algorithm consisting of three parts, a goto table, a fail table, and an output table; a goto table, a fail table, and an output table are conventional tables included in the AC algorithm itself. It can be guaranteed that for a given text and pattern set P{p1, p2,...pm} of length n, within the O(n) time complexity, all target patterns in the text are found, and the scale of the pattern set m has nothing to do.

If there is a pattern set P{he, she, his, hers}, as shown in Figure 2, the goto table of the pattern, and Table 1 shows the output table of the pattern, and the matching pattern string in the table is an embodiment of the present invention. First feature information corresponding to the first UA string;

Output table Mode string status Matching pattern string 2 He 5 She He 7 His 9 Hers

Table 1

Assume that the first UA string is the first feature mode set P{iphone, iphone6, iphone4, andriod}, as shown in FIG. 3 is the goto table of the first feature mode, and Table 2 is the output table of the mode; The mode string is the first feature information corresponding to the first UA string in the embodiment of the present invention:

Output table Mode string status Matching pattern string 6 Iphone 7 Iphone4 8 Iphone6 15 Android

Table 2

The AC algorithm matches the text by: first, pointing i to the start position of the text text[1...j], and then using text[i] to start the state jump from the state D[0] of the goto table. . If there is a feasible jump scheme D[0][text[i]]=p,p! =0, then increase i by 1 and move to state D[p]. If there is no feasible transfer scheme, look at the fail value of state D[p]. If fail[p] is not equal to 0, move to D[fail[p]] and check D[fail[p]][text again. Whether [i]] is equal to 0 until a state transition scheme that is not 0 is found or for all experienced fail states, there is no non-zero transition scheme for the current input text[i], if there is indeed no non-zero transition In the scheme, increase i by 1, and transfer to D[0] to continue the jump. Every time you jump to a state D[p] (fail jump does not count), you need to check whether output[p] points to the outputable mode string. If so, the current position matches some pattern strings. These mode strings are output.

In the above embodiment of the present invention, the method of the embodiment of the present invention further includes:

Step 14: If the first UA string corresponds to two or more first feature information and each of the first feature information belongs to the same dimension, obtain the length of each first feature information;

Step 15: Select the first feature information with the longest length as the feature information of the first terminal device.

It is to be noted that the step 14 and the step 15 are to prevent the same UA string from being corresponding to the plurality of first feature information. In the embodiment of the present invention, the feature information in which the information length is the longest is selected as the feature information of the first terminal. For example, the matching feature information obtained according to the first UA string is iphone3 and iphone3, 1build respectively; then iphone3, 1build is selected as the feature information of the first terminal device. Optionally, selecting the first feature information with the longest length as the feature information of the first terminal device is considered based on the principle that the longer the length, the higher the accuracy, and only an optional embodiment of the present invention; The shortest first feature information is also applicable to the feature information of the first terminal device in a certain application scenario, that is, it should also belong to the protection scope of the embodiment of the present invention, and other pre-set methods are also applicable. One by one.

The method for extracting feature information provided by the embodiment of the present invention is described in detail below with reference to FIG. 4 and FIG. 5:

As shown in FIG. 4, the process of constructing a UA signature file in the embodiment of the present invention is as follows:

Assume that the file covers the feature information of the terminal device from three dimensions, the system, the terminal vendor, and the terminal device model. The steps are as follows:

In step 401, the feature information of the terminal device such as system, vendor, and brand is separately recorded in the form of a table; the table mainly includes information such as TOKEN_ID (serial number), NAME (recognition result), and PATTERN data (UA string);

Step 402: Construct a system table, and obtain and fill data of TOKEN_ID, NAME, and PATTERN of each record in the table;

Step 403: Construct a vendor table, and obtain and fill data of TOKEN_ID, NAME, and PATTERN of each record in the table;

Step 404: Construct a brand table, and obtain and fill data of TOKEN_ID, NAME, and PATTERN of each record in the table;

Step 405: Generate a UA feature library file according to the system table, the vendor table, and the brand table, and the process ends.

As shown in FIG. 5, the process of extracting feature information of a terminal device in the embodiment of the present invention is as follows:

Suppose the file covers the feature information of the terminal device from three dimensions, the system, the terminal device, and the terminal device model. When the device feature library covers the terminal device in the UA string. The steps for the feature information are as follows:

Step 501: Load the UA feature library file generated by the build.

In step 502, the HTTP packet is collected, and the first UA string is obtained from the HTTP message (for example, the request message (REQ) of the HTTP packet. Here, the HTTP packet is one of the request packets.

Step 503: Search for the first feature information corresponding to the first UA string from the UA feature library file by using an AC algorithm according to the first UA string.

In step 504, the length of the first feature information corresponding to the first UA string is calculated by traversing; in the method of the embodiment of the present invention, the ID and the length of the feature information having the longest length can be recorded for each of the first feature information.

Step 505: The first feature information having the longest length is selected as the feature information of the first terminal device.

Step 506: Return the version number of the device system of the terminal device according to the feature information of the first terminal device.

Step 507: Return the terminal device model of the terminal device according to the feature information of the first terminal device, For example, brand.

Step 508: Return to the terminal device manufacturer of the terminal device according to the feature information of the first terminal device. End the process.

It should be noted that, in the embodiment of the present invention, the foregoing extraction method may be implemented by a server or an collection and analysis device in an operator.

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the method for extracting feature information of the terminal device.

As shown in FIG. 6, the embodiment of the present invention further provides an apparatus for extracting feature information of a terminal device, including:

The structuring module 61 is configured to construct a UA feature library file that is mapped to the UA string according to the feature information of the terminal device and the user agent (UA) string corresponding to each feature information.

The acquiring module 62 is configured to collect the request packet sent by the first terminal device, and obtain the first UA string of the first terminal device from the request packet.

The determining module 63 is configured to search for the first feature information corresponding to the first UA string from the UA signature file according to the first UA string, and use the first feature information corresponding to the first UA string as the first Characteristic information of a terminal device.

Optionally, in the foregoing embodiment of the present invention, the feature information of the terminal device includes feature information respectively obtained from multiple dimensions;

The plurality of dimensions includes at least one of a terminal device system, a terminal device manufacturer, and a terminal device model.

Optionally, in the foregoing embodiment of the present invention, the collecting module 62 is configured to:

The Hypertext Transfer Protocol (HTTP) packet sent by the first terminal device is collected, and the HTTP packet is used as the request packet, and the first UA string of the first terminal device is obtained from the HTTP packet.

Optionally, in the foregoing embodiment of the present invention, the determining module 63 is configured to:

The first feature information corresponding to the first UA string is searched from the UA feature library file by using a multi-pattern matching (AC) algorithm according to the first UA string.

Optionally, in the foregoing embodiment of the present invention, the extracting device further includes:

Obtaining a module, configured to acquire a length of the first feature information if the first UA string corresponds to two or more first feature information and each of the first feature information belongs to the same dimension;

The information determining module is configured to select the first feature information having the longest length as the feature information of the first terminal device.

It should be noted that, the device for extracting feature information of the terminal device provided by the foregoing embodiment of the present invention is a device for applying the method for extracting feature information of the terminal device, and all embodiments of the foregoing extraction method are applicable to the extracting device. Both can achieve the same or similar benefits.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, being executed by a processor and stored in a memory. Programs/instructions to implement their respective functions. The invention is not limited to any specific form of combination of hardware and software.

The embodiments disclosed in the present application are as described above, but the descriptions are merely for the purpose of understanding the present application, and are not intended to limit the present application, as an alternative implementation method in the embodiments of the present invention. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail.

Industrial applicability

The above technical solution realizes accurate extraction of feature information of the terminal device.

Claims (10)

A method for extracting feature information of a terminal device, the method comprising: Constructing, according to the feature information of the terminal device and the user agent UA string corresponding to each feature information, a UA feature library file that identifies a mapping relationship between the feature information and the UA string; Collecting a request message sent by the first terminal device, and acquiring a first UA character string of the first terminal device from the request message; Searching, by the first UA character string, the first feature information corresponding to the first UA string from the UA feature library file, and searching for the first feature information corresponding to the first UA string As the feature information of the first terminal device. The extraction method according to claim 1, wherein The feature information of the terminal device includes feature information respectively acquired from multiple dimensions; The plurality of dimensions includes at least one of a terminal device system, a terminal device manufacturer, and a terminal device model. The extraction method according to claim 1, wherein the request message includes a hypertext transfer protocol HTTP message. The method of claim 3, wherein the searching for the first feature information corresponding to the first UA string from the UA feature library file comprises: And searching, according to the first UA string, the first feature information corresponding to the first UA character string from the constructed UA feature library file by using a multi-pattern matching AC algorithm. The extraction method according to claim 4, further comprising: Obtaining a length of each of the first feature information if the first UA string corresponds to two or more first feature information and each of the first feature information belongs to the same dimension; The first feature information having the longest length is selected as the feature information of the first terminal device. An apparatus for extracting feature information of a terminal device, the extracting device comprising: a building module is configured to: according to the feature information of the terminal device and the user agent UA string corresponding to each feature information, construct a mapping between the feature information and the UA string Department of UA signature library files; The acquiring module is configured to collect the request packet sent by the first terminal device, and obtain the first UA string of the first terminal device from the request packet; a determining module, configured to search, according to the first UA string, the first feature information corresponding to the first UA string from the UA feature library file, and to find the first UA string corresponding to the first UA string The first feature information is used as feature information of the first terminal device. The extraction device according to claim 6, wherein the feature information of the terminal device comprises feature information respectively acquired from a plurality of dimensions; The plurality of dimensions includes at least one of a terminal device system, a terminal device manufacturer, and a terminal device model. The extraction device according to claim 6, wherein the acquisition module is configured to: The Hypertext Transfer Protocol (HTTP) message sent by the first terminal device is collected, and the HTTP message is used as the request message, and the first UA string of the first terminal device is obtained from the HTTP message. The extraction device according to claim 8, wherein said determining module is configured to: Searching, by using the multi-mode matching AC algorithm, the first UA string to search for the first feature information corresponding to the first UA string from the UA feature library file, and searching for the first UA string Corresponding first feature information is used as feature information of the first terminal device. The extraction device according to claim 9, further comprising: Obtaining, if the first UA string corresponds to two or more first feature information, and each of the first feature information belongs to the same dimension, obtaining the length of each of the first feature information ; The information determining module is configured to select the first feature information having the longest length as the feature information of the first terminal device.

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