CN112035830A - Browser page reconstruction method, device and equipment - Google Patents
Browser page reconstruction method, device and equipment Download PDFInfo
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Abstract
The invention discloses a browser page reconstruction method, a browser page reconstruction device and browser page reconstruction equipment, which are used for solving the problem of low safety of a service module for loading a browser page in the prior art. The method comprises the following steps: dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page; adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules respectively; integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure; and sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a browser page reconstruction method, a browser page reconstruction device and browser page reconstruction equipment.
Background
In order to protect the safety of a service module in a browser page and prevent an attacker from accessing the browser page in an illegal way except for manual interaction of the browser, the internet industry widely applies a confusion technology aiming at the browser page to scenes such as anti-crawler, prevention of batch voting praise, prevention of malicious login and registration and the like.
In the prior art, obfuscation techniques are often used in a reverse cracking process of an attacker, and common obfuscation techniques aiming at a browser page include code protection modes such as semantic removal, assignment encryption and the like. Among them, the semantic removing method can involve renaming variables and renaming objects and attributes, for example, changing the semantic expression of the variables into nonsense letters; the assignment encryption mode includes encrypting and segmenting the literal assignment.
However, the obfuscation techniques described above for browser pages are very limited in their effectiveness, and although some automated attacks against the traffic modules in the browser can be prevented to some extent, they only force those attackers who are not skilled, confident, or target-specific to abandon the attack. Because the characteristics of the linearly executed code can still expose the service content and the service logic of the service module in the browser, the effect of the obfuscation technology for the browser page is very weak when the attacker faces high-strength, team, pertinence and the like.
Therefore, a method is needed to enhance the confusability of the business module in the browser page, so as to improve the security of the business module in the browser page.
Disclosure of Invention
The embodiment of the invention provides a browser page reconstruction method, a browser page reconstruction device and browser page reconstruction equipment, and aims to solve the problem that in the prior art, a service module for loading a browser page is low in safety.
To solve the above technical problem, the embodiment of the present invention is implemented as follows:
in a first aspect, a method for reconstructing a browser page is provided, where the method includes:
dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page;
adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules respectively;
integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure, wherein the position sequence of the plurality of target unit modules in the tree structure is reset;
and sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
In a second aspect, an apparatus for reconstructing a browser page is provided, the apparatus including:
the dividing unit is used for dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page;
the adding unit is used for respectively adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules;
the reconstruction unit is used for integrating and reconstructing the target unit modules added with the conditional branches and the redundant unit modules added with the conditional branches in a specified number to form a tree structure, and the position sequence of the target unit modules in the tree structure is reset;
and the triggering unit is used for sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
In a third aspect, a computer-readable storage medium is proposed, for storing computer-executable instructions, which, when executed by a processor, implement the steps of the method for reconstructing a browser page according to the first aspect described above.
The embodiment of the invention adopts the technical scheme to at least achieve the following technical effects:
the method provided by the embodiment of the invention comprises the steps of dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page; adding conditional branches for triggering the execution of the target unit modules and adding corresponding conditional branches for the randomly generated redundancy unit modules with the specified number respectively; integrating and reconstructing a plurality of target unit modules added with conditional branches and a specified number of redundant unit modules added with conditional branches to form a tree structure, wherein the position sequence of the target unit modules in the tree structure is reset; and sequentially triggering the conditional branches of all unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Therefore, the position sequence of the target unit modules is disordered, the specified number of redundant unit modules are added, and the formed tree structure is reconstructed, so that the target unit modules can be correctly executed through triggering conditional branches, and the target unit modules can be confused in the specified number of redundant unit modules, thereby enhancing the confusion of the service modules in the target browser page, improving the safety of the service modules in the target browser page and reducing the risk of attacking the target browser page.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flowchart illustrating an implementation process of a method for reconstructing a browser page according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating a normal position sequence of a plurality of target unit modules in a method for reconstructing a browser page according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a relationship between multiple target unit modules after reconstruction in the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 4 is a schematic structural diagram of a tree structure in a method for reconstructing a browser page according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a plurality of target unit modules before a browser page reconstruction method according to an embodiment of the present invention is reconstructed in an actual scene;
fig. 6 is a schematic diagram of a tree structure obtained after a browser page is reconstructed in an actual scene by the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 7 is a schematic flow chart illustrating assignment of a flag bit in an actual scene by the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 8 is a schematic diagram of a plurality of target unit modules before being reconstructed in yet another actual scenario by the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 9 is a schematic flowchart of a function before a browser page is reconfigured in an actual scene according to the method for reconfiguring a browser page provided in the embodiment of the present invention;
fig. 10 is a schematic diagram of a tree structure obtained after a browser page is reconstructed in another actual scene by the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 11 is a schematic diagram of a tree structure corresponding to a function obtained after a browser page is reconstructed in another actual scene by the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 12 is a schematic flow chart illustrating assignment of a flag bit in another actual scenario by the method for reconstructing a browser page according to the embodiment of the present invention;
fig. 13 is a schematic structural diagram of a device for reconstructing a browser page according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of another browser page reconstructing apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
In order to solve the problem that the security of a service module for loading a browser page is low in the prior art, an embodiment of the present specification provides a method for reconstructing a browser page.
Specifically, an implementation flow diagram of a method for reconstructing a browser page provided in one or more embodiments of the present specification is shown in fig. 1, and includes:
it should be understood that a plurality of business modules cooperate with each other to complete loading a browser page.
Specifically, in order to accurately divide the service modules in the target browser page, all the service modules in the target browser page may be traversed before division to obtain a calling sequence between the service modules, and linear logic between the service modules is obtained through combing.
Optionally, the service module may be divided into a plurality of target unit modules according to the implemented functions, or the service module may be divided according to the marks in the service module, such as the designated punctuation marks, and the specific division granularity may be set according to the actual requirements.
Optionally, the service modules in the target browser page may be divided into multiple layers, that is, the specific contents of the divided target unit modules may be divided into two parts on the basis of the primary division.
it should be understood that, since the number of the target unit modules for loading the target browser page may be huge, in order to determine the call sequence and the call opportunity of the target unit modules, a conditional branch for triggering execution of the target unit modules may be added to the target unit modules, so that the target unit modules can ensure the implementation of the original function according to the call logic before division.
Alternatively, in order to be able to confuse an attacker and make it impossible for the attacker to determine a plurality of target unit modules that are really meaningful, a specified number of redundant unit modules may be randomly generated, and the redundant unit modules may be any randomly generated unit modules, where the specified number may be an arbitrarily set number. Specifically, in order to achieve the purpose of confusing an attacker and avoid wasting system resources due to an excessively large number of redundant unit modules, the designated number may be set to the same number as or a number close to the number of the plurality of target unit modules.
The same condition branches that are added for the target unit modules and used for triggering the target unit modules to execute are added for the redundant unit modules of the specified number generated randomly, and therefore it is ensured that attackers cannot easily distinguish the target unit modules from the redundant unit modules.
Alternatively, in order to further confuse the semantics of the plurality of target unit modules, the plurality of target unit modules may be subjected to de-semantic processing, out-of-order processing, and the like. Specifically, in the method provided in the embodiment of the present invention, adding conditional branches for triggering execution of a plurality of target unit modules to the plurality of target unit modules respectively includes:
resetting the position order of the plurality of target unit modules;
replacing names of designated variables in the target unit modules with preset names after the position sequence is reset to obtain a plurality of target unit modules with replaced variable names;
and adding conditional branches for triggering the execution of the target unit modules for the target unit modules after the variable names are replaced respectively.
The resetting of the position order of the target unit modules may be to randomly shuffle the position order of the target unit modules, so that an attacker cannot intuitively obtain the calling order among the target unit modules. In addition, in order to correctly load the target browser page, different identifiers may be added to the target unit modules, so that a server, a client, or other devices that load the target browser page can recognize a correct call sequence among the target unit modules.
The names of the designated variables in the target unit modules after the position sequence is reset are replaced by preset names, and the names of the variables which can clearly indicate the meaning of the variables, such as "name", "number" or "ID", can be replaced by names which have no clear meaning, such as "a", "B" or "C".
wherein, the position sequence of the plurality of target unit modules in the tree structure is reset, and the reset method of the position sequence can be similar to or the same as the aforementioned method.
As shown in fig. 2, for a schematic diagram of a normal position sequence of a plurality of target unit modules in the method for reconstructing a browser page according to the embodiment of the present invention, that is, a schematic diagram of a relationship between a plurality of target unit modules in a browser page before reconstruction, the target unit modules 1 to 5 are arranged according to an original calling sequence.
As shown in fig. 3, which is a schematic diagram illustrating a relationship between multiple target unit modules after reconstruction in a method for reconstructing a browser page according to an embodiment of the present invention, in fig. 3, on the basis of fig. 2, the position sequence of the target unit module 1 to the target unit module 5 has been reset, and redundant unit modules 1 and 2 are further added to the unit module for loading the target browser page.
Alternatively, in order to enable a plurality of target unit modules to be connected in series and called continuously by executing the reconstructed tree structure in a loop, a loop block and a flag for pointing to a conditional branch of the next triggered unit module may be employed. Specifically, in the method provided in the embodiment of the present invention, the integrating and reconstructing the multiple target unit modules to which the conditional branches are added and the redundant unit modules to which the conditional branches are added in the specified number to form a tree structure includes:
embedding a plurality of target unit modules added with conditional branches and a specified number of redundant unit modules added with conditional branches into a loop block for triggering the conditional branches for multiple times;
and respectively adding a flag bit for pointing to the conditional branch of the next triggered unit module to each unit module in the circulating block to form a tree structure.
It should be understood that the flag bit corresponds to a unit module, meaning that the flag bit and the unit module belong to the same conditional branch; and the flag bit points to the unit module, which means that the flag bit points to the next called unit module.
Fig. 4 is a schematic structural diagram of a tree structure in a method for reconstructing a browser page according to an embodiment of the present invention. The tree structure in fig. 4 is a schematic diagram of a two-level tree structure formed by reconstructing target unit modules 1 to 5 based on the technology of a plurality of target unit modules in fig. 2 and by combining the concept shown in fig. 3, and each target unit module and each redundant module correspond to a conditional branch and a flag bit respectively.
As shown in the arrow direction in fig. 4, when a plurality of target unit modules are executed to load a target browser page, a called conditional branch is determined by a conditional block, and after a unit module corresponding to the conditional branch is called, the conditional block may be triggered again by a loop block according to a flag bit corresponding to the called unit module, and the conditional branch pointed to by the flag bit is further determined. For example, after calling the target unit module 2 corresponding to the conditional branch 1, if the flag bit 1 corresponding to the target unit module 2 points to the conditional branch 5, the conditional block may be triggered again by the loop block, so as to call the target unit module 3 corresponding to the conditional branch 5.
Alternatively, in order to be able to determine the execution order among the plurality of target unit modules and acquire the specific contents of the plurality of target unit modules, a table recording the execution order and the storage address may be stored in the server. Specifically, after flag bits for pointing to conditional branches of the next triggered unit module are added to each unit module in the cyclic block to form a tree structure, the method provided in the embodiment of the present invention further includes:
and generating a mapping relation table of the identifications of the target unit modules and the flag bits of the unit modules according to the corresponding relation between the identifications of the target unit modules in the tree structure and the flag bits of the unit modules in the tree structure, wherein the identification of one target unit module is used for indicating the execution sequence of the target unit module and the storage address pointing to the target unit module.
| Marker bit | Identification of target unit module corresponding to zone bit |
| 3 | A |
| 2 | B |
| 5 | C |
TABLE 1 correspondence table of identification of a plurality of target unit modules and flag bits of a plurality of unit modules
As shown in table 1, a table of correspondence between the identifications of the target unit modules and the flag bits of the unit modules is shown. Where "A", "B", "C" indicates that the correct call order for the plurality of target unit modules is A-B-C, and "A", "B", "C" may also be used to point to the memory addresses of the corresponding target unit modules, respectively.
For example, if the flag bit is 1, the identifier of the corresponding target unit module cannot be obtained in table 1, which indicates that the unit module pointed to when the flag bit is 1 is a redundant unit module, and the flag bit corresponding to the redundant unit module may not be obtained, and the above steps may be directly obtained. For another example, if the flag bit is 3, the target unit module identified as a, i.e. the target unit module to be executed first, pointed by the flag bit 3 can be obtained from table 1, and then the specific content of the target unit module can be obtained according to "a" and the unit module can be executed.
And 140, sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Optionally, in the method provided in the embodiment of the present invention, sequentially triggering the conditional branch of each unit module in the tree structure and executing the corresponding unit module includes:
triggering a conditional branch of a triggered unit module in the tree structure, wherein the triggered unit module is any one unit module in the tree structure;
executing the triggered unit module;
and acquiring the flag bit of the triggered unit module to trigger the conditional branch of the unit module pointed by the flag bit of the triggered unit module.
Specifically, if the triggered unit module is a redundant unit module, the triggered unit module is not executed; and if the triggered unit module is the target unit module, executing the triggered unit module.
Optionally, in the method provided in the embodiment of the present invention, executing the triggered unit module includes:
determining whether the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered according to the mapping relation table of the identifiers of the target unit modules and the flag bits of the unit modules;
if the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered, acquiring the service content of the triggered unit module from the corresponding storage address;
and executing the service content of the triggered unit module.
Specifically, the method for determining the execution sequence indicated by the identifier of the triggered unit module may be as described in the corresponding description part of table 1. In addition, if the last executed target unit module is the target unit module identified as a in table 1, the triggered unit module is executed only if the identification of the triggered unit module is B.
Alternatively, a mapping relationship table of the identifications of the plurality of target unit modules and the flag bits of the plurality of unit modules may be stored in the server. Then, the server is queried once at each time of triggering the conditional branch to determine whether the triggered unit module is the target unit module and the execution order in which the triggered unit module is the target unit module.
Therefore, the server is accessed for multiple times, the information acquired from the server each time only relates to the triggered unit module and does not comprise the information of other unit modules, so that the risk that the information of the target unit module is exposed to an attacker due to the fact that the file of the whole mapping relation table in the server is directly downloaded is avoided, and the safety in loading the target browser page is greatly improved.
As shown in fig. 5, a schematic diagram of a plurality of target unit modules before being reconstructed in an actual scene is provided for the method for reconstructing a browser page according to the embodiment of the present invention. In fig. 5, flag e may be assigned to distinguish flag bits and ensure that multiple conditional branches can be triggered; "var count ═ 0; "is the target unit module a," count + ═ 1; "target cell module B," alert (count); "is the target unit module C.
As shown in fig. 6, a schematic diagram of a tree structure obtained after a browser page is reconstructed in an actual scene according to the method for reconstructing a browser page provided in the embodiment of the present invention. Then, the tree structure after reconstruction of the plurality of target unit modules in fig. 5 may be as shown in fig. 6. Target unit modules 1-3 correspond to conditional branches 3, 2 and 5 respectively, and conditional branches 1 and 4 correspond to redundant unit modules; "while (e | ═ 0)" indicates that when the flag e is not equal to 0, the conditional branches "case 1" to "case 5" in the trigger condition block "switch (e)"; "e ═ 0, 1, 2, 4, or 5" indicates that flag bit e is asserted to reset flag bit e so that multiple conditional branches in the conditional block can be triggered.
Specifically, the following describes in detail a flow for sequentially executing the unit modules in the tree structure, with the tree structure shown in fig. 6, specifically as follows:
i, before executing the tree structure, assigning a flag bit e to be 3;
step ii, when e is 3, triggering conditional branch case 3, and querying a mapping relationship table between the identifiers of the multiple target unit modules and the flag bits of the multiple unit modules, knowing that e is 3 points to the target unit module identified as a, where a indicates that the target unit module should be executed first, and then acquiring and executing the specific content of the target unit module a from the storage address corresponding to the identifier a;
step iii, if the flag bit e corresponding to the target unit module a is obtained as 2, triggering judgment in the loop block, and determining that the e is 2 and the condition block can be triggered;
step iv, when e is 2, triggering conditional branch case2, and querying a mapping relationship table between the identifiers of the multiple target unit modules and the flag bits of the multiple unit modules, so that e is 2, which points to the target unit module identified as B, where B indicates that the target unit module should be executed second and the last executed unit module is target unit module a, and then obtaining and executing the specific content of the target unit module B from the storage address corresponding to the identifier B;
step v, if the flag bit e corresponding to the target unit module B is acquired to be 5, triggering judgment in the loop block, and determining that the e is 5 can trigger the condition block;
step vi, when e is 5, triggering conditional branch case 5, and querying a mapping relationship table between the identifiers of the multiple target unit modules and the flag bits of the multiple unit modules, where e is 5, which points to the target unit module identified as C, where C indicates that the target unit module should be executed second and the last executed unit module is target unit module B, and then obtaining and executing the specific content of the target unit module C from the storage address corresponding to the identifier C;
and vii, if the flag bit e corresponding to the target unit module C is obtained to be 0, triggering the judgment in the loop block, and if the condition block that e is not triggerable is determined to be 0, jumping out of the loop block, and ending the execution.
As shown in fig. 7, a schematic flow chart of assigning a flag bit in an actual scene for a method for reconstructing a browser page according to an embodiment of the present invention is provided. When the tree structure in fig. 6 is executed, the assignment process of the corresponding flag bit e may be specifically as shown in fig. 7.
Alternatively, in a tree structure as shown in FIG. 6, the flag e may point to the target unit modules A, B and C in a row. If the unit module pointed by the zone bit e is mixed with the redundant unit module, the redundant unit module can not be executed, and the zone bit corresponding to the redundant unit module is directly obtained.
Optionally, if the execution sequence of the target unit module acquired for the first time is not the first one, the target unit module may not be executed, and the flag bit corresponding to the target unit module is directly acquired, so as to continue triggering other conditional branches to acquire the target unit module whose execution sequence is the first one.
Alternatively, when the flag bit is set, the flag bit may be set to point to the flag bits of a plurality of target unit modules in the execution order, so that after the target unit module whose execution order is the first is executed, all unit modules corresponding to the triggered conditional branches are target unit modules, and the conditional branches are sequentially triggered according to the execution order. For example, the order of the unit modules corresponding to the triggered conditional branch may be "redundant unit module a-target unit module B-target unit module C".
Alternatively, the flag bit may be set randomly, as long as before jumping out of the loop block, it is ensured that all the target unit modules are executed according to the execution sequence, and the target browser page can be loaded correctly.
Fig. 8 is a schematic diagram of a plurality of target unit modules before being reconstructed in another actual scenario by the method for reconstructing a browser page according to the embodiment of the present invention. Fig. 8 includes the content "var count ═ fun (); "target unit module A, and content" alert (count) "; "original location order and execution order of the target unit module B.
Fig. 9 is a schematic flow chart of a function before the browser page reconstruction method provided in the embodiment of the present invention is reconstructed in an actual scene. That is, fig. 9 is an internal execution flow of the function fun () of the target unit module a in fig. 8, that is, the target unit module a is divided twice on the basis of the primary division, and then when the tree structure is reconstructed, two tree structures can be formed respectively.
For example, as shown in fig. 10, a schematic diagram of a tree structure obtained after the browser page reconstruction method provided by the embodiment of the present invention is reconstructed in another actual scene. The tree structure in fig. 10 is a schematic diagram of a tree structure formed according to the target unit module in fig. 8.
As shown in fig. 11, a schematic diagram of a tree structure corresponding to a function obtained after the method for reconstructing a browser page provided in the embodiment of the present invention is reconstructed in another actual scene is shown. The tree structure in fig. 11 is formed by reconstructing each target unit block inside the function fun () in fig. 9.
Similar to the execution flow of the tree structure in fig. 6, the execution flow of the tree structure in fig. 10 is only when the trigger "case 20: var count ═ fun (); when "time, the tree structure corresponding to the function fun () in fig. 11 may be triggered until the execution of the tree structure corresponding to the function fun () in fig. 11 is finished, and then the flag bit" e "corresponding to" case20 "in the tree structure in fig. 11 is obtained as 96; ", and proceeds to execute the tree structure of fig. 11.
As shown in fig. 12, a schematic flow chart of assigning a flag bit in another actual scenario for a method for reconstructing a browser page according to an embodiment of the present invention is provided. Fig. 12 is a flow chart illustrating an assignment process of the flag e when the tree structure in fig. 10 and fig. 11 is executed, wherein a dashed box represents an assignment process of the flag e executed according to the tree structure corresponding to the function fun () in fig. 10.
The method provided by the embodiment of the invention comprises the steps of dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page; adding conditional branches for triggering the execution of the target unit modules and adding corresponding conditional branches for the randomly generated redundancy unit modules with the specified number respectively; integrating and reconstructing a plurality of target unit modules added with conditional branches and a specified number of redundant unit modules added with conditional branches to form a tree structure, wherein the position sequence of the target unit modules in the tree structure is reset; and sequentially triggering the conditional branches of all unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Therefore, the position sequence of the target unit modules is disordered, the specified number of redundant unit modules are added, and the formed tree structure is reconstructed, so that the target unit modules can be correctly executed through triggering conditional branches, and the target unit modules can be confused in the specified number of redundant unit modules, thereby enhancing the confusion of the service modules in the target browser page, improving the safety of the service modules in the target browser page and reducing the risk of attacking the target browser page.
Fig. 13 is a schematic structural diagram of a browser page reconstruction apparatus 1300 provided in the present specification. Referring to fig. 13, in a software implementation, a device 1300 for reconstructing a browser page may include a dividing unit 1301, an adding unit 1302, a reconstructing unit 1303, and a triggering unit 1304, where:
the dividing unit 1301 is configured to divide a service module in a target browser page into a plurality of target unit modules according to a calling sequence between the service modules in the target browser page;
an adding unit 1302, configured to add conditional branches for triggering the multiple target unit modules to execute for the multiple target unit modules, and add corresponding conditional branches for a specified number of randomly generated redundant unit modules;
a reconstructing unit 1303, configured to perform integrated reconstruction on the multiple target unit modules to which the conditional branches are added and the specified number of redundant unit modules to which the conditional branches are added, so as to form a tree structure, where a position order of the multiple target unit modules in the tree structure is reset;
and a triggering unit 1304, configured to sequentially trigger the conditional branches of each unit module in the tree structure and execute the corresponding unit module, so as to load the reconstructed target browser page.
Optionally, in an embodiment, the adding unit 1302 is configured to:
resetting a positional order of the plurality of target unit modules;
replacing names of designated variables in the target unit modules after the position sequence is reset with preset names to obtain a plurality of target unit modules after the variable names are replaced;
and adding the conditional branches for triggering the target unit modules to execute respectively for the target unit modules after the variable names are replaced.
Optionally, in an embodiment, the reconstructing unit 1303 is configured to:
embedding the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches into a loop block for triggering the conditional branches for multiple times;
and respectively adding a flag bit for pointing to the conditional branch of the next triggered unit module to each unit module in the circulating block to form the tree structure.
Optionally, in an embodiment, the apparatus 1300 further includes:
a generating unit 1305, configured to generate a mapping relationship table between the identifiers of the multiple target unit modules and the flag bits of the multiple unit modules according to a correspondence between the identifiers of the multiple target unit modules in the tree structure and the flag bits of the multiple unit modules in the tree structure, where an identifier of one target unit module is used to indicate an execution order of the target unit module and a storage address pointing to the target unit module.
Optionally, in an embodiment, the triggering unit 1304 is configured to:
the conditional branching of each unit module and the execution of the corresponding unit module include:
triggering a conditional branch of a triggered unit module in the tree structure, wherein the triggered unit module is any one unit module in the tree structure;
executing the triggered unit module;
and acquiring the flag bit of the triggered unit module to trigger the conditional branch of the unit module pointed by the flag bit of the triggered unit module.
Optionally, in an embodiment, the triggering unit 1304 is configured to:
determining whether the execution sequence indicated by the identifier of the triggered unit module and the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered are continuous or not according to a mapping relation table of the identifiers of the target unit modules and the flag bits of the unit modules;
if the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered, acquiring the service content of the triggered unit module from the corresponding storage address;
and executing the service content of the triggered unit module.
The browser page reconstruction apparatus 1300 can implement the method in the browser page reconstruction method embodiments shown in fig. 1 to 12, and specifically refer to the browser page reconstruction method in the embodiment shown in fig. 1 to 12, which is not described again.
The method provided by the embodiment of the invention comprises the steps of dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page; adding conditional branches for triggering the execution of the target unit modules and adding corresponding conditional branches for the randomly generated redundancy unit modules with the specified number respectively; integrating and reconstructing a plurality of target unit modules added with conditional branches and a specified number of redundant unit modules added with conditional branches to form a tree structure, wherein the position sequence of the target unit modules in the tree structure is reset; and sequentially triggering the conditional branches of all unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Therefore, the position sequence of the target unit modules is disordered, the specified number of redundant unit modules are added, and the formed tree structure is reconstructed, so that the target unit modules can be correctly executed through triggering conditional branches, and the target unit modules can be confused in the specified number of redundant unit modules, thereby enhancing the confusion of the service modules in the target browser page, improving the safety of the service modules in the target browser page and reducing the risk of attacking the target browser page.
The embodiment of the invention also provides a device for reconstructing a browser page, and fig. 14 is a schematic structural diagram of the device for reconstructing a browser page provided by the embodiment of the invention. As shown in fig. 14, the browser page reconstruction device may have a relatively large difference due to different configurations or performances, and may include one or more processors 1401 and a memory 1402, where one or more stored applications or data may be stored in the memory 1402. Memory 1402 may be, among other things, transient storage or persistent storage. The application program stored in memory 1402 may include one or more modules (not shown), each of which may include a series of computer-executable instructions in a memory data loading device. Still further, the processor 1401 may be configured to communicate with the memory 1402, and execute a series of computer-executable instructions in the memory 1402 on an in-memory data loading device. The memory data loading apparatus may also include one or more power supplies 1403, one or more wired or wireless network interfaces 1404, one or more input-output interfaces 1405, one or more keyboards 1406, and the like.
In a specific embodiment, the browser page reconstructing apparatus 1400 includes a memory, a processor, and computer-executable instructions stored on the memory and executable on the processor, and when executed by the processor, the computer-executable instructions implement the following processes:
dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page;
adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules respectively;
integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure, wherein the position sequence of the plurality of target unit modules in the tree structure is reset;
and sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Optionally, the computer executable instructions, when executed by the processor,
the adding conditional branches for triggering the execution of the target unit modules to the target unit modules respectively comprises:
resetting a positional order of the plurality of target unit modules;
replacing names of designated variables in the target unit modules after the position sequence is reset with preset names to obtain a plurality of target unit modules after the variable names are replaced;
and adding the conditional branches for triggering the target unit modules to execute respectively for the target unit modules after the variable names are replaced.
The integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure, including:
embedding the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches into a loop block for triggering the conditional branches for multiple times;
and respectively adding a flag bit for pointing to the conditional branch of the next triggered unit module to each unit module in the circulating block to form the tree structure.
After the adding flag bits for pointing to the conditional branch of the next triggered unit module for each unit module in the cyclic block to form a tree structure, the method further includes:
and generating a mapping relation table of the identifications of the target unit modules and the flag bits of the unit modules according to the corresponding relation between the identifications of the target unit modules in the tree structure and the flag bits of the unit modules in the tree structure, wherein the identification of one target unit module is used for indicating the execution sequence of the target unit module and the storage address pointing to the target unit module.
The triggering of the conditional branch of each unit module in the tree structure and the execution of the corresponding unit module in sequence includes:
triggering a conditional branch of a triggered unit module in the tree structure, wherein the triggered unit module is any one unit module in the tree structure;
executing the triggered unit module;
and acquiring the flag bit of the triggered unit module to trigger the conditional branch of the unit module pointed by the flag bit of the triggered unit module.
The executing the triggered unit module includes:
determining whether the execution sequence indicated by the identifier of the triggered unit module and the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered are continuous or not according to a mapping relation table of the identifiers of the target unit modules and the flag bits of the unit modules;
if the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered, acquiring the service content of the triggered unit module from the corresponding storage address;
and executing the service content of the triggered unit module.
The method provided by the embodiment of the invention comprises the steps of dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page; adding conditional branches for triggering the execution of the target unit modules and adding corresponding conditional branches for the randomly generated redundancy unit modules with the specified number respectively; integrating and reconstructing a plurality of target unit modules added with conditional branches and a specified number of redundant unit modules added with conditional branches to form a tree structure, wherein the position sequence of the target unit modules in the tree structure is reset; and sequentially triggering the conditional branches of all unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Therefore, the position sequence of the target unit modules is disordered, the specified number of redundant unit modules are added, and the formed tree structure is reconstructed, so that the target unit modules can be correctly executed through triggering conditional branches, and the target unit modules can be confused in the specified number of redundant unit modules, thereby enhancing the confusion of the service modules in the target browser page, improving the safety of the service modules in the target browser page and reducing the risk of attacking the target browser page.
Further, an embodiment of the present invention also provides a computer-readable storage medium, which is used for storing computer-executable instructions, and when the computer-executable instructions are executed by a processor, the following process is implemented:
dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page;
adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules respectively;
integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure, wherein the position sequence of the plurality of target unit modules in the tree structure is reset;
and sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Optionally, the computer executable instructions, when executed by the processor,
the adding conditional branches for triggering the execution of the target unit modules to the target unit modules respectively comprises:
resetting a positional order of the plurality of target unit modules;
replacing names of designated variables in the target unit modules after the position sequence is reset with preset names to obtain a plurality of target unit modules after the variable names are replaced;
and adding the conditional branches for triggering the target unit modules to execute respectively for the target unit modules after the variable names are replaced.
The integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure, including:
embedding the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches into a loop block for triggering the conditional branches for multiple times;
and respectively adding a flag bit for pointing to the conditional branch of the next triggered unit module to each unit module in the circulating block to form the tree structure.
After the adding flag bits for pointing to the conditional branch of the next triggered unit module for each unit module in the cyclic block to form a tree structure, the method further includes:
and generating a mapping relation table of the identifications of the target unit modules and the flag bits of the unit modules according to the corresponding relation between the identifications of the target unit modules in the tree structure and the flag bits of the unit modules in the tree structure, wherein the identification of one target unit module is used for indicating the execution sequence of the target unit module and the storage address pointing to the target unit module.
The triggering of the conditional branch of each unit module in the tree structure and the execution of the corresponding unit module in sequence includes:
triggering a conditional branch of a triggered unit module in the tree structure, wherein the triggered unit module is any one unit module in the tree structure;
executing the triggered unit module;
and acquiring the flag bit of the triggered unit module to trigger the conditional branch of the unit module pointed by the flag bit of the triggered unit module.
The executing the triggered unit module includes:
determining whether the execution sequence indicated by the identifier of the triggered unit module and the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered are continuous or not according to a mapping relation table of the identifiers of the target unit modules and the flag bits of the unit modules;
if the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered, acquiring the service content of the triggered unit module from the corresponding storage address;
and executing the service content of the triggered unit module.
The method provided by the embodiment of the invention comprises the steps of dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page; adding conditional branches for triggering the execution of the target unit modules and adding corresponding conditional branches for the randomly generated redundancy unit modules with the specified number respectively; integrating and reconstructing a plurality of target unit modules added with conditional branches and a specified number of redundant unit modules added with conditional branches to form a tree structure, wherein the position sequence of the target unit modules in the tree structure is reset; and sequentially triggering the conditional branches of all unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
Therefore, the position sequence of the target unit modules is disordered, the specified number of redundant unit modules are added, and the formed tree structure is reconstructed, so that the target unit modules can be correctly executed through triggering conditional branches, and the target unit modules can be confused in the specified number of redundant unit modules, thereby enhancing the confusion of the service modules in the target browser page, improving the safety of the service modules in the target browser page and reducing the risk of attacking the target browser page.
The computer-readable storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (12)
1. A method for reconstructing a browser page, the method comprising:
dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page;
adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules respectively;
integrating and reconstructing the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches to form a tree structure, wherein the position sequence of the plurality of target unit modules in the tree structure is reset;
and sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
2. The method of claim 1, wherein said adding conditional branches to said plurality of target unit modules, respectively, for triggering execution of said plurality of target unit modules, comprises:
resetting a positional order of the plurality of target unit modules;
replacing names of designated variables in the target unit modules after the position sequence is reset with preset names to obtain a plurality of target unit modules after the variable names are replaced;
and adding the conditional branches for triggering the target unit modules to execute respectively for the target unit modules after the variable names are replaced.
3. The method of claim 1, wherein the integrating and reconstructing the plurality of target unit modules to which the conditional branches are added and the specified number of redundant unit modules to which the conditional branches are added to form a tree structure comprises:
embedding the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches into a loop block for triggering the conditional branches for multiple times;
and respectively adding a flag bit for pointing to the conditional branch of the next triggered unit module to each unit module in the circulating block to form the tree structure.
4. The method of claim 3, wherein after said adding a flag bit for pointing to a conditional branch of a next triggered unit module for each unit module in the loop block to form a tree structure, respectively, the method further comprises:
and generating a mapping relation table of the identifications of the target unit modules and the flag bits of the unit modules according to the corresponding relation between the identifications of the target unit modules in the tree structure and the flag bits of the unit modules in the tree structure, wherein the identification of one target unit module is used for indicating the execution sequence of the target unit module and the storage address pointing to the target unit module.
5. The method of claim 4, wherein said sequentially triggering conditional branches of unit modules in the tree structure and executing corresponding unit modules comprises:
triggering a conditional branch of a triggered unit module in the tree structure, wherein the triggered unit module is any one unit module in the tree structure;
executing the triggered unit module;
and acquiring the flag bit of the triggered unit module to trigger the conditional branch of the unit module pointed by the flag bit of the triggered unit module.
6. The method of claim 5, wherein the executing the triggered unit module comprises:
determining whether the execution sequence indicated by the identifier of the triggered unit module and the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered are continuous or not according to a mapping relation table of the identifiers of the target unit modules and the flag bits of the unit modules;
if the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered, acquiring the service content of the triggered unit module from the corresponding storage address;
and executing the service content of the triggered unit module.
7. An apparatus for reconstructing a browser page, the apparatus comprising:
the dividing unit is used for dividing the service modules in the target browser page into a plurality of target unit modules according to the calling sequence among the service modules in the target browser page;
the adding unit is used for respectively adding conditional branches for triggering the target unit modules to execute and adding corresponding conditional branches for a specified number of randomly generated redundant unit modules;
the reconstruction unit is used for integrating and reconstructing the target unit modules added with the conditional branches and the redundant unit modules added with the conditional branches in a specified number to form a tree structure, and the position sequence of the target unit modules in the tree structure is reset;
and the triggering unit is used for sequentially triggering the conditional branches of the unit modules in the tree structure and executing the corresponding unit modules so as to load the reconstructed target browser page.
8. The apparatus of claim 7, wherein the adding unit is to:
resetting a positional order of the plurality of target unit modules;
replacing names of designated variables in the target unit modules after the position sequence is reset with preset names to obtain a plurality of target unit modules after the variable names are replaced;
and adding the conditional branches for triggering the target unit modules to execute respectively for the target unit modules after the variable names are replaced.
9. The apparatus of claim 7, wherein the reconstruction unit is to:
embedding the plurality of target unit modules added with the conditional branches and the specified number of redundant unit modules added with the conditional branches into a loop block for triggering the conditional branches for multiple times;
and respectively adding a flag bit for pointing to the conditional branch of the next triggered unit module to each unit module in the circulating block to form the tree structure.
10. The apparatus of claim 9, wherein the apparatus further comprises:
and the generating unit is used for generating a mapping relation table of the identifications of the target unit modules and the flag bits of the unit modules according to the corresponding relation between the identifications of the target unit modules in the tree structure and the flag bits of the unit modules in the tree structure, wherein the identification of one target unit module is used for indicating the execution sequence of the target unit module and the storage address pointing to the target unit module.
11. The apparatus of claim 10, wherein the trigger unit is to:
the conditional branching of each unit module and the execution of the corresponding unit module include:
triggering a conditional branch of a triggered unit module in the tree structure, wherein the triggered unit module is any one unit module in the tree structure;
executing the triggered unit module;
and acquiring the flag bit of the triggered unit module to trigger the conditional branch of the unit module pointed by the flag bit of the triggered unit module.
12. The apparatus of claim 11, wherein the trigger unit is to:
determining whether the execution sequence indicated by the identifier of the triggered unit module and the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered are continuous or not according to a mapping relation table of the identifiers of the target unit modules and the flag bits of the unit modules;
if the execution sequence indicated by the identifier of the triggered unit module is continuous with the execution sequence of the unit module executed before the conditional branch of the triggered unit module is triggered, acquiring the service content of the triggered unit module from the corresponding storage address;
and executing the service content of the triggered unit module.
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