CN112261111A - Method and system for realizing cross-domain access of browser in application program - Google Patents
Method and system for realizing cross-domain access of browser in application program Download PDFInfo
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- CN112261111A CN112261111A CN202011110889.0A CN202011110889A CN112261111A CN 112261111 A CN112261111 A CN 112261111A CN 202011110889 A CN202011110889 A CN 202011110889A CN 112261111 A CN112261111 A CN 112261111A
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000012545 processing Methods 0.000 claims description 16
- 235000014510 cooky Nutrition 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/958—Organisation or management of web site content, e.g. publishing, maintaining pages or automatic linking
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Abstract
The invention discloses a method and a system for realizing cross-domain access of a browser in an application program, wherein the method comprises the following steps: step S1, the browser receives the access request of the user, generates a cross-domain access request according to the access request of the user and sends the cross-domain access request to the request agent layer; step S2, the request agent layer assembles the requested parameters into a resource access request according with the protocol specification according to the received cross-domain access request, sends the resource access request to an interface server corresponding to the request target address in the cross-domain access request for resource access, and obtains the request result from the request target address server; step S3, the request agent layer formats the obtained request result and returns the formatted content to the application program browser page; and step S4, the application program browser page processes according to the service logic after acquiring the request result data returned by the request proxy layer.
Description
Technical Field
The invention relates to the technical field of computer network communication, in particular to a method and a system for realizing cross-domain access of a browser in an application program.
Background
At present, due to the convention of the same source policy, a browser cannot access server resources across domains, for example, a company has 2 website domain names www.a.com and www.b.com, when an APP end user accesses http:// www.a.com/login.html through a browser component, that is, an interface on www.b.com needs to be accessed through an H5 page on www.a.com, a cross-domain access situation occurs, resulting in an access failure, as shown in fig. 1.
The following two ways are currently available for solving the problem of cross-domain request for browser access in an application program (App):
1. setting up the server side interface allows cross-domain access, for example setting up http:// www.b.com/login.do any source can access, but such a setup would result in any other non-own company page being accessible to this interface, creating a security problem that could be easily exploited by some "phishing websites" to steal user information.
2. The method includes the steps that a browser is forcibly set in an application program (App) to allow cross-domain access, the browser in the application program (App) closes the cross-domain access due to security problems, and if the browser in the application program (App) is forcibly set to allow the cross-domain access, the security problems can be caused, such as the existence of a cross-domain access vulnerability CNVD-2017 and 36682.
Disclosure of Invention
In order to overcome the defects in the prior art, the present invention provides a method and a system for implementing cross-domain access of a browser in an application program, so as to solve the insecurity problem of cross-domain access of a browser in an application program.
In order to achieve the above object, the present invention provides a method for implementing cross-domain access of a browser in an application, including the following steps:
step S1, the browser receives the access request of the user, generates a cross-domain access request according to the access request of the user and sends the cross-domain access request to the request agent layer;
step S2, the request agent layer assembles the requested parameters into a resource access request according with the protocol specification according to the received cross-domain access request, sends the resource access request to an interface server corresponding to the request target address in the cross-domain access request for resource access, and obtains the request result from the request target address server;
step S3, the request agent layer formats the obtained request result and returns the formatted content to the application program browser page;
and step S4, the application program browser page processes according to the service logic after acquiring the request result data returned by the request proxy layer.
Preferably, in step S1, the XMLHttpRequest of the browser page is captured, whether the external resource is loaded by the network request is determined, the address domain name of the external resource is captured when the external resource is loaded, and the cross-domain access request is generated and sent to the request broker layer.
Preferably, in step S1, capturing the web request XMLHttpRequest for the browser page is implemented using the application browser JAVASCRIPT.
Preferably, the cross-domain access request contains parameters of a resource to be requested, and the parameters of the resource to be requested include, but are not limited to, a request unique code ReqeustId, a request target address requestUrl, a request Method, a Content Type Accept capable of being received, a Content Type Content-Type submitted by the request, Cookie data, a CallBack JS Method CallBack, and a request service Content Json character string Params.
Preferably, the in-application browser webpage is an H5 page.
Preferably, in step S2, when the request agent layer receives the cross-domain access request, the request agent layer assembles the request into an http request according to the parameters included in the request agent layer, and sends the http request to the interface server corresponding to the request destination address RequestUrl for resource access.
Preferably, in step S3, the formatted content includes, but is not limited to, a request unique code ReqeustId, an http status code StatusCode, and a return Response.
Preferably, after the request result is formatted, the formatted content is returned to the application program browser webpage by calling a CallBack JS method CallBack in the cross-domain access request.
In order to achieve the above object, the present invention further provides a system for implementing cross-domain access to a browser in an application, including:
the application program end is used for receiving an access request of a user, generating a cross-domain access request according to the access request of the user, sending the cross-domain access request to the original sound request proxy layer, and processing the cross-domain access request according to service logic after acquiring request data returned by the request proxy layer;
the request agent layer is used for assembling the requested parameters into a resource access request according to the cross-domain access request when receiving the cross-domain access request of the application program end, sending the resource access request to a server corresponding to a request target address in the cross-domain access request to obtain a resource request, formatting the obtained request result after obtaining a request result, and returning the formatted content to the application program end;
and the interface server is used for performing logic processing on the resource access request and returning a processing result to the request agent layer when receiving the resource access request of the request agent layer.
Preferably, the application program terminal captures a network request XMLHttpRequest of the application program browser page, determines whether the network request loads an external resource, captures an address domain name of the external resource when the external resource is loaded, generates a cross-domain access request, and sends the cross-domain access request to the request proxy layer.
Compared with the prior art, the method and the system for realizing the cross-domain access of the browser in the application program receive the access request of the user through the application program end, generate the cross-domain access request according to the access request of the user and send the cross-domain access request to the original sound request agent layer, the request agent layer assembles the requested parameters into the resource access request according to the cross-domain access request, sends the resource access request to the interface server corresponding to the request target address in the cross-domain access request, and after obtaining the request result, formats the obtained request result and returns the formatted request result to the application program end.
Drawings
FIG. 1 is a flow diagram of a prior art cross-domain access process;
FIG. 2 is a flowchart illustrating steps of a method for implementing cross-domain access of a browser in an application according to the present invention;
FIG. 3 is a system architecture diagram of a system for implementing cross-domain browser access within an application of the present invention;
fig. 4 is a flowchart of cross-domain access processing according to an embodiment of the present invention.
Detailed Description
Other advantages and capabilities of the present invention will be readily apparent to those skilled in the art from the present disclosure by describing the embodiments of the present invention with specific embodiments thereof in conjunction with the accompanying drawings. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
FIG. 2 is a flowchart illustrating steps of a method for implementing cross-domain access of a browser in an application according to the present invention. As shown in fig. 2, the method for implementing cross-domain access of a browser in an application program of the present invention includes the following steps:
and step S1, the browser receives the access request of the user, generates a cross-domain access request according to the access request of the user and sends the cross-domain access request to the acoustic request proxy layer.
In the invention, a network request (XMLHttpRequest) of a browser page is captured, whether the network request loads an external resource is judged, an address domain name of the external resource is captured when the external resource is loaded, and a cross-domain access request is generated and sent to a request proxy layer.
In the embodiment of the present invention, monitoring the behavior of the network request (XMLHttpRequest) in the page may be implemented by using the JAVASCRIPT script of the application browser, and when the network request (XMLHttpRequest) in the page protects the external website, for example: when a user requests to log in, the user requests XMLHttpRequest to send a http:// www.a.com/login.do request, and the network request address is judged to be an external resource.
In the specific embodiment of the present invention, the cross-domain access request includes parameters of a resource that needs to be requested, and the parameters of the resource that needs to be requested include, but are not limited to, a request unique code ReqeustId, a request target address requestUrl, a request Method, a Content Type Accept that can be received, a Content Type Content-Type submitted by the request, Cookie data, a CallBack JS Method CallBack, a request service Content Json character string Params, and the like.
Step S2, the request proxy layer assembles the requested parameters into a resource access request meeting the protocol specification according to the received cross-domain access request, sends the resource access request to the interface server corresponding to the request destination address in the cross-domain access request to perform resource access, and obtains the request result from the request destination address server.
In the invention, a request agent layer is arranged at an APP (application program) end, when the request agent layer receives a cross-domain access request sent by a browser webpage, the request agent layer assembles the request into an http request according to parameters contained in the request agent layer, such as request unique code ReqeustId, request target address RequestUrl, a request Method, a Content Type Accept capable of being received, Content Type-Type submitted by the request, Cookie data, a CallBack JS Method CallBack, request service Content Json character string Params and the like, and sends the http request to a server corresponding to the request target address RequestUrl for resource access, and an interface server corresponding to the request target address RequestUrl receives the http request, performs logic processing on the http request and returns a processing result to the request agent layer.
Step S3, the request agent layer formats the obtained request result, and returns the formatted content to the application browser webpage.
In the invention, when a request proxy layer receives a request result returned by a server corresponding to a request target address RequestUrl, the request result is firstly formatted into a format which can be identified by an application program browser webpage.
Step S4, after the application browser page obtains the request data returned by the request proxy layer, the whole cross-domain access request is completed according to the service logic processing, thereby implementing the cross-domain access.
FIG. 3 is a system architecture diagram of a system for implementing cross-domain browser access in an application according to the present invention. As shown in fig. 3, the present invention provides a system for implementing cross-domain access to an in-application browser, including:
the application program terminal 20 is configured to receive an access request of a user, generate a cross-domain access request according to the access request of the user, send the cross-domain access request to the acoustic request proxy layer, and complete the whole cross-domain access request according to service logic processing after acquiring request data returned by the request proxy layer 21, thereby implementing cross-domain access.
In the invention, a network request (XMLHttpRequest) of an application program end 20 browser page is captured, whether the network request loads an external resource is judged, an address domain name of the external resource is captured when the external resource is loaded, and a cross-domain access request is generated and sent to a request proxy layer.
In the embodiment of the present invention, the application terminal 20 may utilize an application browser JAVASCRIPT script to implement monitoring of the behavior of the network request (XMLHttpRequest) in the page, when the network request (XMLHttpRequest) in the page protects the external website, for example: when a user requests to log in, the user requests XMLHttpRequest to send a http:// www.a.com/login.do request, and the network request address is judged to be an external resource.
In the specific embodiment of the present invention, the cross-domain access request includes parameters of a resource that needs to be requested, and the parameters of the resource that needs to be requested include, but are not limited to, a request unique code ReqeustId, a request target address requestUrl, a request Method, a Content Type Accept that can be received, a Content Type Content-Type submitted by the request, Cookie data, a CallBack JS Method CallBack, a request service Content Json character string Params, and the like.
The request agent layer 21 is configured to, when receiving a cross-domain access request of the application program terminal 20, assemble requested parameters into a resource access request according to the cross-domain access request, send the resource access request to a server corresponding to a request target address in the cross-domain access request to perform a resource acquisition request, format an obtained request result after obtaining a request result, and return the formatted content to the application program terminal 20.
That is to say, when the request agent layer 21 receives the cross-domain access request sent by the browser webpage, according to the parameters included in the request agent layer, such as the request unique code ReqeustId, the request target address RequestUrl, the request Method, the receivable Content Type Accept, the Content Type Content-Type submitted by the request, the Cookie data, the CallBack JS Method CallBack, the request service Content Json character string Params, and the like, the request agent layer assembles the request into the format of the http request, sends the http request to the server corresponding to the request target address RequestUrl, and sends the http request to the request agent layer 21 for logical processing of the http request after receiving the http request.
When the request agent layer 21 receives a request result returned by the server corresponding to the request target address requestUrl, the request result is firstly formatted into a format which can be identified by the application program browser webpage.
The interface server 22 is configured to, when receiving the resource access request from the request agent layer 21, perform logical processing on the resource access request, and return a processing result to the request agent layer.
In the embodiment of the present invention, the interface server 22 refers to an interface server corresponding to the request target address requestUrl, and when receiving an http request sent by the request proxy layer, the interface server performs a logical process on the http request, and then returns a processing result to the request proxy layer 21.
Examples
In this embodiment, as shown in fig. 4, an implementation of cross-domain access of an in-application browser includes the following steps:
step 1, cross-domain request content of the H5 page, namely parameters needing to request resources, is sent to a request agent layer by Js. In this embodiment, the parameters to be forwarded are shown in table 1 below:
TABLE 1
And 2, the request agent layer receives the request parameters sent by the H5 page, assembles the request parameters into an http request, sends the http request to a server corresponding to a request target address RequestUrl for resource request, and obtains a request result.
Step 3, the request agent layer formats the request result, and the formatted content is shown in the following table 2:
TABLE 2
The formatted content is then returned to the H5 page by calling the JS method of parameter CallBack in step 1.
And 4, after the H5 page acquires the request data returned by the request agent layer, the whole cross-domain request is completed according to the service logic processing.
In summary, the method and system for implementing cross-domain access of a browser in an application program receive an access request of a user through an application program end, generate a cross-domain access request according to the access request of the user, send the cross-domain access request to an original request proxy layer, assemble parameters requested by the cross-domain access request into a resource access request by the request proxy layer according to the cross-domain access request, send the resource access request to an interface server corresponding to a request target address in the cross-domain access request, and format the obtained request result and return the formatted request result to the application program end after obtaining the request result.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (10)
1. A method for realizing cross-domain access of a browser in an application program comprises the following steps:
step S1, the browser receives the access request of the user, generates a cross-domain access request according to the access request of the user and sends the cross-domain access request to the request agent layer;
step S2, the request agent layer assembles the requested parameters into a resource access request according with the protocol specification according to the received cross-domain access request, sends the resource access request to an interface server corresponding to the request target address in the cross-domain access request for resource access, and obtains the request result from the request target address server;
step S3, the request agent layer formats the obtained request result and returns the formatted content to the application program browser page;
and step S4, the application program browser page processes according to the service logic after acquiring the request result data returned by the request proxy layer.
2. The method for implementing cross-domain access to an in-application browser of claim 1, wherein: in step S1, the XMLHttpRequest of the web request of the browser page is captured, whether the web request loads an external resource is determined, an address domain name of the external resource is captured when the external resource is loaded, and a cross-domain access request is generated and sent to the request proxy layer.
3. The method for implementing cross-domain access to an in-application browser of claim 2, wherein: in step S1, capturing the web request XMLHttpRequest of the browser page is implemented by using the application browser JAVASCRIPT.
4. The method for implementing cross-domain access to an in-application browser of claim 2, wherein: the cross-domain access request comprises parameters of resources needing to be requested, and the parameters of the resources needing to be requested include but are not limited to a request unique code ReqeustId, a request target address RequestUrl, a request Method, a Content Type Accept capable of being received, a Content Type Content-Type submitted by a request, Cookie data, a CallBack JS Method CallBack, and a request service Content Json character string Params.
5. The method for implementing cross-domain access to an in-application browser of claim 4, wherein: the browser webpage in the application program is H5 page.
6. The method for implementing cross-domain access to an in-application browser of claim 1, wherein: in step S2, when the request agent layer receives the cross-domain access request, the request agent layer assembles the request into an http request according to the parameters included in the request agent layer, and sends the http request to the interface server corresponding to the request destination address RequestUrl for resource access.
7. The method for implementing cross-domain access to an in-application browser of claim 1, wherein: in step S3, the formatted content includes, but is not limited to, the request unique code ReqeustId, the http status code StatusCode, and the Response returned.
8. The method for implementing cross-domain access to an in-application browser of claim 7, wherein: after the request result is formatted, the formatted content is returned to the webpage of the application program browser by calling a CallBack JS method CallBack in the cross-domain access request.
9. An in-application browser cross-domain access implementation system, comprising:
the application program end is used for receiving an access request of a user, generating a cross-domain access request according to the access request of the user, sending the cross-domain access request to the original sound request proxy layer, and processing the cross-domain access request according to service logic after acquiring request data returned by the request proxy layer;
the request agent layer is used for assembling the requested parameters into a resource access request according to the cross-domain access request when receiving the cross-domain access request of the application program end, sending the resource access request to a server corresponding to a request target address in the cross-domain access request to obtain a resource request, formatting the obtained request result after obtaining a request result, and returning the formatted content to the application program end;
and the interface server is used for performing logic processing on the resource access request and returning a processing result to the request agent layer when receiving the resource access request of the request agent layer.
10. The system as claimed in claim 9, wherein the application program captures a web request XMLHttpRequest of the application program browser page, determines whether the web request loads an external resource, captures an address domain name of the external resource when the external resource is loaded, generates a cross-domain access request, and sends the cross-domain access request to the request proxy layer.
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| CN112818270A (en) * | 2021-01-25 | 2021-05-18 | 上海哔哩哔哩科技有限公司 | Data cross-domain transfer method and device and computer equipment |
| CN112929447A (en) * | 2021-03-05 | 2021-06-08 | 深圳市联软科技股份有限公司 | WKWebview component network request takeover method and system |
| CN115086393A (en) * | 2022-06-13 | 2022-09-20 | 卫宁健康科技集团股份有限公司 | Interface calling method, device, equipment and storage medium |
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Application publication date: 20210122 |