CN115695400A - Method and terminal for interaction between Web page and local application - Google Patents
Method and terminal for interaction between Web page and local application Download PDFInfo
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- CN115695400A CN115695400A CN202211120881.1A CN202211120881A CN115695400A CN 115695400 A CN115695400 A CN 115695400A CN 202211120881 A CN202211120881 A CN 202211120881A CN 115695400 A CN115695400 A CN 115695400A
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Abstract
The invention discloses a method and a terminal for interaction between a Web page and a local application, wherein a local application permission access address is configured as a local address; presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page; when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client; according to the method, the Web page can be connected with the intermediate client through calling an interface method, and the intermediate client is connected with the local application through TCP connection; and the local application configuration can only be accessed by a local address, so that the safety of data in the local application is ensured, the interaction between the Web page and the local application is realized, and a plug-in a browser is not required.
Description
Technical Field
The invention relates to the field of data transmission, in particular to a method and a terminal for interaction between a Web page and a local application.
Background
With the continuous development of the cloud desktop at the computer end, a handover process is inevitably generated between a new system and an old system, some old systems are built earlier, some business systems can be normally accessed only by relying on plug-ins in an IE browser (such as ActiveX plug-ins to help add various functions), the cost of specially rewriting the new business system is high, the new business system is not adapted to all users, and the dependence on the plug-ins in the IE browser is a problem to be solved urgently in the current migration and transformation process.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a method and a terminal for interaction between a Web page and a local application are provided, and dependency removal on a browser plug-in is realized.
In order to solve the technical problems, the invention adopts a technical scheme that:
a method for Web page interaction with a local application, comprising the steps of:
configuring a local application permission access address as a local address;
presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page;
and when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
a terminal for Web page interaction with a local application, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
configuring a local application permission access address as a local address;
presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page;
and when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client.
The invention has the beneficial effects that: presetting an intermediate client, wherein a TCP link and an interface method which can be called by a Web page are configured, after receiving a data acquisition request, the Web page can establish connection with the intermediate client through the interface method, and the intermediate client is connected with a local application link through the TCP link; and the local application configuration can only be accessed by a local address, so that the safety of data in the local application is ensured, the interaction between the Web page and the local application is realized, and a plug-in a browser is not required.
Drawings
FIG. 1 is a flowchart illustrating steps of a method for interaction between a Web page and a local application according to an embodiment of the present invention;
FIG. 2 is a system architecture diagram of a Web page interacting with a local application, according to an embodiment of the present invention;
FIG. 3 is a diagram of a plug-in management center according to an embodiment of the present invention;
FIG. 4 is a flowchart of another step of the present invention;
fig. 5 is a schematic structural diagram of a terminal for interaction between a Web page and a local application according to an embodiment of the present invention;
description of the reference symbols:
1. a terminal for interaction between a Web page and a local application; 2. a processor; 3. a memory.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a method for Web page interaction with a local application includes:
configuring a local application permission access address as a local address;
presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page;
and when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client.
From the above description, the beneficial effects of the present invention are: presetting an intermediate client, wherein a TCP link and an interface method which can be called by a Web page are configured, after receiving a data acquisition request, the Web page can establish connection with the intermediate client through the interface method, and the intermediate client is connected with a local application link through the TCP link; and the local application configuration can only be accessed by a local address, so that the safety of data in the local application is ensured, the interaction between the Web page and the local application is realized, and a plug-in a browser is not required.
Further, the configuring the local application permission access address as a local address includes:
initializing a connection object, and setting a binding address as a local address.
As can be seen from the above description, by setting the binding address of the connection object in the local application as the local address, the local application can be accessed only locally, and the security of data in the local application is ensured.
Further, when receiving a data acquisition request, controlling the Web page to acquire target data in the local application through the intermediate client includes:
when a data acquisition request is received, controlling the Web page to call the interface method;
and controlling the intermediate client to access the local application through TCP after receiving a signal for calling the interface method by the Web page, and acquiring the target data.
As can be seen from the above description, the intermediate client performs data transfer, the Web page realizes data transfer between the Web page and the intermediate client by calling an interface method when receiving a data acquisition request, and the intermediate client realizes data transfer between the Web page and the local application by TCP, so that the acquisition process from the data acquisition request to the target data is realized, and the linkage between the Web page and the local application is realized.
Further, the data acquisition request comprises a plug-in identifier, a version number, a calling method name and a pass parameter;
before the receiving of the data acquisition request, the method further comprises:
controlling a local application to traverse a plug-in list, and carrying out validity check on the plug-ins in the plug-in list;
loading and registering the plug-in which passes the validity check to obtain a registry, wherein the registry comprises a plug-in identification and a corresponding relation of a plug-in instance;
the method for controlling the Web page to call the interface comprises the following steps:
controlling the Web page to call the interface method, and transmitting the plug-in identification, the version number, the calling method name and the transmission parameter;
accessing the native application through TCP, and obtaining the target data comprises:
accessing the local application through TCP, and sending the plug-in identifier, the version number, the calling method name and the transfer parameter to the local application;
matching plug-in instances in the registry according to the plug-in identifiers, and obtaining the target data according to the version number, calling method names and methods corresponding to the transmission reference calling plug-in instances;
transmitting the target data back to the intermediate client through TCP;
the intermediate client returns the target data to a Web page through the interface method;
and controlling the Web page to display the target data.
According to the description, the plug-in is registered in advance to obtain the corresponding relation between the plug-in identification and the plug-in instance, when a data acquisition request is received, the plug-in identification is included, the corresponding plug-in can be called according to the plug-in identification to obtain the required target data, the interaction between the Web page and the local application is realized through the plug-in calling in the local application, and the browser only needs to call a method and does not need to rely on the browser plug-in.
Further, the preset intermediate client includes:
compiling the intermediate client into a wasm file.
As can be seen from the above description, the intermediate client is compiled into a wasm file, and can run directly on a Web page, and this is a binary instruction set of a stacked virtual machine, and also corresponds to an encryption method, and even if intercepted in a Web page, a code cannot be identified from the binary instruction set. The used encryption mode and data assembly mode further ensure the safety.
Referring to fig. 5, a terminal for Web page interaction with local application includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the following steps when executing the computer program:
configuring a local application permission access address as a local address;
presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page;
and when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client.
The invention has the beneficial effects that: presetting an intermediate client, wherein a TCP link and an interface method which can be called by a Web page are configured, after receiving a data acquisition request, the Web page can establish connection with the intermediate client through the interface method, and the intermediate client is connected with a local application link through the TCP link; and the local application configuration can only be accessed by a local address, so that the safety of data in the local application is ensured, the interaction between the Web page and the local application is realized, and a plug-in a browser is not required.
Further, the configuring the local application permission access address as a local address includes:
initializing a connection object, and setting a binding address as a local address.
As can be seen from the above description, by setting the binding address of the connection object in the local application as the local address, the local application can be accessed only locally, and the security of data in the local application is ensured.
Further, when receiving a data acquisition request, controlling the Web page to acquire target data in the local application through the intermediate client includes:
when a data acquisition request is received, controlling the Web page to call the interface method;
and controlling the intermediate client to access the local application through TCP after receiving a signal for calling the interface method by the Web page, and acquiring the target data.
As can be seen from the above description, the intermediate client performs data transfer, the Web page realizes data transfer between the Web page and the intermediate client by calling an interface method when receiving a data acquisition request, and the intermediate client realizes data transfer between the Web page and the local application by TCP, so that the acquisition process from the data acquisition request to the target data is realized, and the linkage between the Web page and the local application is realized.
Further, the data acquisition request comprises a plug-in identifier, a version number, a calling method name and a parameter transmission;
before the receiving of the data acquisition request, the method further comprises:
controlling a local application to traverse a plug-in list, and carrying out validity check on the plug-ins in the plug-in list;
loading and registering the plug-in which passes the validity check to obtain a registry, wherein the registry comprises a plug-in identifier and a corresponding relation of a plug-in instance;
the method for controlling the Web page to call the interface comprises the following steps:
controlling the Web page to call the interface method, and transmitting the plug-in identification, the version number, the calling method name and the transmission parameter;
accessing the native application through TCP, and obtaining the target data comprises:
accessing the local application through the TCP, and sending the plug-in identification, the version number, the calling method name and the transmission parameter to the local application;
matching a plug-in instance in the registry according to the plug-in identifier, and obtaining the target data according to the version number, the calling method name and a method corresponding to the transmission reference calling plug-in instance;
transmitting the target data back to the intermediate client through TCP;
the intermediate client returns the target data to a Web page through the interface method;
and controlling the Web page to display the target data.
According to the description, the plug-in is registered in advance to obtain the corresponding relation between the plug-in identification and the plug-in instance, when the data acquisition request is received, the plug-in identification is included, the corresponding plug-in can be called according to the plug-in identification to obtain the required target data, the interaction between the Web page and the local application is realized through the plug-in calling in the local application, and the browser only needs to call the method and does not need to rely on the browser plug-in.
Further, the preset intermediate client includes:
compiling the intermediate client into a wasm file.
As can be seen from the above description, the intermediate client is compiled into a wasm file, and can run directly on a Web page, and this is a binary instruction set of a stacked virtual machine, and also corresponds to an encryption method, and even if intercepted in a Web page, a code cannot be identified from the binary instruction set. The used encryption mode and data assembly mode further ensure the safety.
The method for interaction between a Web page and a local application according to the present invention can be applied to a scene where interaction between a Web page and a local application needs to be implemented, and the following description is provided by a specific embodiment
Referring to fig. 1, a first embodiment of the present invention is:
a method for interaction between a Web page and a local application specifically comprises the following steps:
s1, configuring a local application permission access address as a local address, comprising the following steps:
initializing a connection object, and setting a binding address as a local address;
in an optional implementation manner, the local application is a desktop application, and based on a UOS operating system or a galaxy kylin operating system, a mode of providing an interface (API) or a Software Development Kit (SDK) is supported, and data or corresponding configuration in the desktop application is transferred to the operating system;
in an optional implementation manner, a Server socket connection object in a TCP Server service is configured, a binding address and a port are set, an address is set to be a local address, that is, 127.0.0.1, and only local access is allowed;
s2, initializing a thread pool, and processing a connection request for establishing connection with a local application; specifically, a LocalThreadPool thread pool is initialized, and when a new TCP message request exists (that is, the intermediate client requests to connect to the local application in step S5), a thread is obtained from the thread pool to process the subsequent forwarding of the message, so that the message processing is not blocked;
s3, controlling a local application to traverse a plug-in list, and carrying out validity check on the plug-ins in the plug-in list; loading and registering the plug-in which passes the validity check to obtain a registry, wherein the registry comprises a plug-in identifier and a corresponding relation of a plug-in instance, specifically:
s31, traversing the plug-in list from the directory, specifically, calling scanPlugins () (the method is mainly used for scanning and loading plug-in information meeting the rule under the specified directory) to traverse the plug-in list from the Plugins directory; the plug-in mode is adopted, the expandability is realized, the plug-in with the new function can be called only after being registered, and more functions can be added subsequently;
s32, carrying out validity check on the plug-ins in the plug-in list, wherein the validity check comprises the integrity of plug-in information and the integrity of plug-in files; specifically, calling checkValid () (checking the validity of the plugin, which can prevent non-compliant plugins from being loaded, including the integrity of plugin information and the integrity of plugin files) to check the validity of the plugin, wherein the information integrity includes whether a plugin Identifier (ID), a version number (version) and a calling method name (methods) are complete or not; the integrity of the plug-in file comprises the verification of a file hash value, namely, whether a pre-stored hash value is the same as a hash value obtained by calculating the obtained plug-in file is verified, if so, the plug-in file is complete and is not tampered and damaged;
s33, loading and registering the plug-in which passes the validity check in the step S32, generating a relation map table based on a plug-in identifier (plugin id) and a plug-in instance in a memory during registration, and calling by upper-layer services to provide corresponding services after the plug-in registration is completed; specifically, the method calls loadPlugin () to load a plug-in file, and executes a plug-in register () method to register;
referring to fig. 3, in an alternative embodiment, a Native Plugins management center is configured to manage a set of all local Plugins related to an externally provided service, where one function corresponds to one plugin, for example, a local user name and one plugin in the set corresponding to the function are obtained, and local registration and management of the Plugins are implemented by the Native Plugins management center;
in an alternative embodiment, step S1 and step S2 are both implemented by an application service program in the local application (for example, an application service program Native Center App is set, which includes a TCP Server service and Native plugs management Center);
in an optional embodiment, a method of starting a Server socket start () is used to start a TCP Server service, a service is started, and an initplugin management (an internal method entry is used to trigger a plugin center to start loading) is called to trigger the plugin center to load a start request, referring to fig. 4, S4, a preset intermediate client (client), and the intermediate client is configured to access the local application through TCP and configure an interface method that can be called by a Web page; specifically, the intermediate client establishes connection with a Server socket connection object in the TCP Server service to realize connection with the local application; the Web page can call a pre-written interface method (such as a loadLocalMethod method provided for JS call for loading local login user information) through JS to realize connection with an intermediate client;
in an optional implementation, AES (Advanced Encryption Standard) Encryption is implemented in the preset intermediate client;
in an optional implementation manner, the Web page may be a Web page in a browser, or may be an embedded Web page in a local application;
in an optional implementation manner, the intermediate client is compiled into a wasm file, specifically, the intermediate client is compiled into the wasm file through a webassempty technology, and JS in the Web page can call the wasm file through a webassempty library, that is, the loadLocalMethod method described above; the intermediate client in this embodiment is not an entity device, but a virtual intermediate client implemented in a C + + manner, and may be stored in the background of the Web page, and loaded by the Web page according to the URL of the wasm file; the wap file can be directly loaded and operated in the browser, and due to the fact that the wap file is a binary instruction set, compiling and analyzing are not needed again, and operation efficiency is high;
specifically, loading the wasm file can specify a URL in JS of the Web page, such as the following code:
const fs＝require('fs')；
let src＝new Uint8Array(fs.readFileSync(http://localtest.com/test.wasm'))；
referring to fig. 2, steps S1 to S4 may be executed sequentially or simultaneously, which is not limited herein;
s5, when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client, wherein the target data comprises the following steps:
s51, when a data acquisition request is received, controlling the Web page to call the interface method, wherein the method comprises the following steps: controlling the Web page to call the interface method, and transmitting the plug-in identification, the version number, the calling method name and the transmission parameter;
in an optional implementation manner, a corresponding interface method is called according to the type of data requested by the data acquisition request; acquiring and acquiring elements in the data acquisition request according to the rules of the interface method, wherein the data acquisition request comprises a plug-in identifier, a version number, a calling method name and a transfer parameter;
in an optional implementation mode, a Web page loads a wasm file, a program in the wasm file, namely an intermediate client, is started, if a data acquisition request requests local login user information, a loadLocalMethod () method is called, plug-in identification, version number, calling method name and transmission reference are required to be transmitted, the method is finally used for carrying out AES encryption on transmitted data (message) and transmitting the data to a local application through TCP communication, and the encryption ensures the safety of channel data;
s52, controlling the intermediate client to access the local application through TCP after receiving the signal of the Web page calling the interface method, and acquiring the target data, wherein the method comprises the following steps:
s521, accessing the local application through TCP, and sending the plug-in identifier, the version number, the calling method name and the transfer parameter to the local application;
s522, specifically, transmitting the target data to a plug-in management center through pipeline communication (thread pool implementation), matching plug-in instances in the registry according to the plug-in identifiers, and obtaining the target data according to the version number, calling method names and methods corresponding to the transmission reference calling plug-in instances;
in an alternative embodiment, if the data is encrypted by AES, step S522 is performed after decryption;
in an optional implementation manner, between step S521 and step S522, further including: an Interface layer of a Native Plugin plug-in management center calls a checkParams for integrity check and validity check on incoming information;
s523, the target data is transmitted back to the intermediate client through the TCP;
s524, the intermediate client returns the target data to a Web page through the interface method;
and S525, controlling the Web page to display the target data.
Referring to fig. 2, the second embodiment of the present invention is:
a terminal 1 for Web page interaction with local application comprises a processor 2, a memory 3 and a computer program stored on the memory 3 and capable of running on the processor 2, wherein the processor 2 implements the steps of the first embodiment when executing the computer program.
In summary, the present invention provides a method and a terminal for interaction between a Web page and a local application, and provides a secure communication manner between the local application and the Web page, wherein the communication between the Web page and the local application is realized by establishing a TCP connection between the Web page and the local application indirectly through a virtual intermediate client, and the local application is configured to be accessed only locally, so that the security of data in the local application is ensured, and the problem that the Web page cannot acquire information in the local application is effectively solved; in the communication process, besides TCP encryption safe transmission, AES encryption is used, the data is stored as a wap file at the middle client end through webassempty technology, the safety of the communication process data is ensured, meanwhile, the function is realized by the Native Plugin plug-in management center through a plug-in mode, and subsequently, if the function needs to be expanded, only the plug-in registration is needed, so that more plug-in loading can be supported, and the service can be provided to the outside.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for interaction between a Web page and a local application, comprising:
configuring a local application permission access address as a local address;
presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page;
and when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client.
2. The method of claim 1, wherein configuring the local application permission access address as a local address comprises:
initializing a connection object, and setting a binding address as a local address.
3. The method of claim 1, wherein the controlling the Web page to obtain the target data in the local application through the intermediate client when receiving the data obtaining request comprises:
when a data acquisition request is received, controlling the Web page to call the interface method;
and controlling the intermediate client to access the local application through TCP after receiving a signal of calling the interface method by the Web page, and acquiring the target data.
4. The method for interaction between a Web page and a local application according to claim 3, wherein the data acquisition request comprises a plug-in identifier, a version number, a calling method name and a pass-through parameter;
before the receiving of the data acquisition request, the method further comprises:
controlling a local application to traverse a plug-in list, and carrying out validity check on the plug-ins in the plug-in list;
loading and registering the plug-in which passes the validity check to obtain a registry, wherein the registry comprises a plug-in identification and a corresponding relation of a plug-in instance;
the method for controlling the Web page to call the interface comprises the following steps:
controlling the Web page to call the interface method, and transmitting the plug-in identification, the version number, the calling method name and the transmission parameter;
accessing the native application via TCP, obtaining the target data comprising:
accessing the local application through TCP, and sending the plug-in identifier, the version number, the calling method name and the transfer parameter to the local application;
matching a plug-in instance in the registry according to the plug-in identifier, and obtaining the target data according to the version number, the calling method name and a method corresponding to the transmission reference calling plug-in instance;
transmitting the target data back to the intermediate client through a TCP;
the intermediate client returns the target data to a Web page through the interface method;
and controlling the Web page to display the target data.
5. The method of claim 1, wherein the presetting of the intermediate client comprises:
compiling the intermediate client into a wasm file.
6. A terminal for Web page interaction with a local application, comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:
configuring a local application permission access address as a local address;
presetting an intermediate client, configuring the intermediate client to access the local application through TCP, and configuring an interface method which can be called by a Web page;
and when a data acquisition request is received, controlling the Web page to acquire target data corresponding to the data acquisition request in the local application through the intermediate client.
7. The terminal for interaction between a Web page and a local application as claimed in claim 6, wherein said configuring the local application permission access address as the local address comprises:
initializing a connection object, and setting a binding address as a local address.
8. The terminal for interaction between a Web page and a local application according to claim 6, wherein when receiving a data acquisition request, controlling the Web page to acquire target data in the local application through the intermediate client includes:
when a data acquisition request is received, controlling the Web page to call the interface method;
and controlling the intermediate client to access the local application through TCP after receiving a signal of calling the interface method by the Web page, and acquiring the target data.
9. The terminal for interaction between a Web page and a local application according to claim 8, wherein the data acquisition request includes a plug-in identifier, a version number, a calling method name, and a transfer parameter;
before the receiving of the data acquisition request, the method further comprises:
controlling a local application to traverse a plug-in list, and carrying out validity check on the plug-ins in the plug-in list;
loading and registering the plug-in which passes the validity check to obtain a registry, wherein the registry comprises a plug-in identification and a corresponding relation of a plug-in instance;
the method for controlling the Web page to call the interface comprises the following steps:
controlling the Web page to call the interface method, and transmitting the plug-in identification, the version number, the calling method name and the transmission parameter;
accessing the native application via TCP, obtaining the target data comprising:
accessing the local application through TCP, and sending the plug-in identifier, the version number, the calling method name and the transfer parameter to the local application;
matching a plug-in instance in the registry according to the plug-in identifier, and obtaining the target data according to the version number, the calling method name and a method corresponding to the transmission reference calling plug-in instance;
transmitting the target data back to the intermediate client through TCP;
the intermediate client returns the target data to a Web page through the interface method;
and controlling the Web page to display the target data.
10. The terminal for interaction between a Web page and a local application according to claim 6, wherein the preset intermediate client comprises:
compiling the intermediate client into a wasm file.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116760812A (en) * | 2023-08-17 | 2023-09-15 | 福建博思软件股份有限公司 | Function component-based local resource access method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116760812A (en) * | 2023-08-17 | 2023-09-15 | 福建博思软件股份有限公司 | Function component-based local resource access method and system |
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